From 9922cbe90d7d32b6dbc3c1967de1d522a3363484 Mon Sep 17 00:00:00 2001
From: "Valeriano A.R." <valen.alfonso@protonmail.com>
Date: Sun, 11 May 2025 20:01:38 +0200
Subject: [PATCH] Initialize issues branch

---
 .clang-format                       |   63 -
 .gitignore                          |   23 -
 CMakeLists.txt                      |   58 -
 Example.GameLib/.clang-format       |   63 -
 Example.GameLib/.gitignore          |   20 -
 Example.GameLib/CMakeLists.txt      |   40 -
 Example.GameLib/data/background.png |  Bin 18150 -> 0 bytes
 Example.GameLib/data/block.png      |  Bin 4280 -> 0 bytes
 Example.GameLib/data/level_01.txt   |   71 -
 Example.GameLib/data/platform.png   |  Bin 652 -> 0 bytes
 Example.GameLib/data/player.png     |  Bin 1164 -> 0 bytes
 Example.GameLib/dev-server.sh       |    5 -
 Example.GameLib/dist-emscripten.sh  |   19 -
 Example.GameLib/src/GameEnts.c      |  179 -
 Example.GameLib/src/GameEnts.h      |   18 -
 Example.GameLib/src/GameMap.c       |  114 -
 Example.GameLib/src/GameMap.h       |    7 -
 Example.GameLib/src/main.c          |   58 -
 Example.GameLib/web/index.html      |  157 -
 LICENSE.txt                         |   21 -
 cmake/FindSDL2.cmake                |  202 -
 issues/.keep                        |    0
 macosx/SDLMain.m                    |  365 --
 src/Anim.c                          |  244 --
 src/Anim.h                          |  112 -
 src/Audio.c                         |  363 --
 src/Audio.h                         |   48 -
 src/Bucket.c                        |  185 -
 src/Bucket.h                        |   68 -
 src/Draw.c                          | 1260 ------
 src/Draw.h                          |  201 -
 src/Entity.c                        | 1038 -----
 src/Entity.h                        |  286 --
 src/FontData.h                      |  260 --
 src/GameLib.c                       |  808 ----
 src/GameLib.h                       |  154 -
 src/Input.c                         |  226 -
 src/Input.h                         |  108 -
 src/QuadArray2D.c                   |   93 -
 src/QuadArray2D.h                   |   31 -
 src/TimeUtils.c                     |   59 -
 src/TimeUtils.h                     |   18 -
 src/Util.c                          |  421 --
 src/Util.h                          |  133 -
 src/lodepng.c                       | 6044 ---------------------------
 src/lodepng.h                       | 1722 --------
 46 files changed, 15365 deletions(-)
 delete mode 100644 .clang-format
 delete mode 100644 .gitignore
 delete mode 100644 CMakeLists.txt
 delete mode 100644 Example.GameLib/.clang-format
 delete mode 100644 Example.GameLib/.gitignore
 delete mode 100644 Example.GameLib/CMakeLists.txt
 delete mode 100644 Example.GameLib/data/background.png
 delete mode 100644 Example.GameLib/data/block.png
 delete mode 100644 Example.GameLib/data/level_01.txt
 delete mode 100644 Example.GameLib/data/platform.png
 delete mode 100644 Example.GameLib/data/player.png
 delete mode 100644 Example.GameLib/dev-server.sh
 delete mode 100644 Example.GameLib/dist-emscripten.sh
 delete mode 100644 Example.GameLib/src/GameEnts.c
 delete mode 100644 Example.GameLib/src/GameEnts.h
 delete mode 100644 Example.GameLib/src/GameMap.c
 delete mode 100644 Example.GameLib/src/GameMap.h
 delete mode 100644 Example.GameLib/src/main.c
 delete mode 100644 Example.GameLib/web/index.html
 delete mode 100644 LICENSE.txt
 delete mode 100644 cmake/FindSDL2.cmake
 create mode 100644 issues/.keep
 delete mode 100644 macosx/SDLMain.m
 delete mode 100644 src/Anim.c
 delete mode 100644 src/Anim.h
 delete mode 100644 src/Audio.c
 delete mode 100644 src/Audio.h
 delete mode 100644 src/Bucket.c
 delete mode 100644 src/Bucket.h
 delete mode 100644 src/Draw.c
 delete mode 100644 src/Draw.h
 delete mode 100644 src/Entity.c
 delete mode 100644 src/Entity.h
 delete mode 100644 src/FontData.h
 delete mode 100644 src/GameLib.c
 delete mode 100644 src/GameLib.h
 delete mode 100644 src/Input.c
 delete mode 100644 src/Input.h
 delete mode 100644 src/QuadArray2D.c
 delete mode 100644 src/QuadArray2D.h
 delete mode 100644 src/TimeUtils.c
 delete mode 100644 src/TimeUtils.h
 delete mode 100644 src/Util.c
 delete mode 100644 src/Util.h
 delete mode 100644 src/lodepng.c
 delete mode 100644 src/lodepng.h

diff --git a/.clang-format b/.clang-format
deleted file mode 100644
index 2bbf5d1..0000000
--- a/.clang-format
+++ /dev/null
@@ -1,63 +0,0 @@
----
-Language: Cpp
-# BasedOnStyle:  LLVM
-AccessModifierOffset: -2
-AlignAfterOpenBracket: AlwaysBreak
-AlignOperands: true
-AlignTrailingComments: true
-AllowAllParametersOfDeclarationOnNextLine: false
-AllowShortBlocksOnASingleLine: Always
-AllowShortCaseLabelsOnASingleLine: false
-AllowShortIfStatementsOnASingleLine: false
-AllowShortLoopsOnASingleLine: false
-AllowShortFunctionsOnASingleLine: All
-AlwaysBreakAfterDefinitionReturnType: None
-AlwaysBreakTemplateDeclarations: No
-AlwaysBreakBeforeMultilineStrings: false
-BreakBeforeBinaryOperators: None
-BreakBeforeTernaryOperators: true
-BreakConstructorInitializersBeforeComma: false
-BinPackParameters: true
-BinPackArguments: false
-ColumnLimit: 120
-ConstructorInitializerAllOnOneLineOrOnePerLine: false
-ConstructorInitializerIndentWidth: 4
-DerivePointerAlignment: false
-ExperimentalAutoDetectBinPacking: false
-IndentCaseLabels: false
-IndentWrappedFunctionNames: false
-MaxEmptyLinesToKeep: 1
-KeepEmptyLinesAtTheStartOfBlocks: true
-NamespaceIndentation: None
-ObjCBlockIndentWidth: 2
-ObjCSpaceAfterProperty: false
-ObjCSpaceBeforeProtocolList: true
-PenaltyBreakBeforeFirstCallParameter: 19
-PenaltyBreakComment: 300
-PenaltyBreakString: 1000
-PenaltyBreakFirstLessLess: 120
-PenaltyExcessCharacter: 1000000
-PenaltyReturnTypeOnItsOwnLine: 60
-PointerAlignment: Right
-SpacesBeforeTrailingComments: 1
-Cpp11BracedListStyle: true
-Standard: c++11
-IndentWidth: 4
-TabWidth: 4
-UseTab: AlignWithSpaces
-BreakBeforeBraces: Attach
-SpacesInParentheses: false
-SpacesInSquareBrackets: false
-SpacesInAngles: false
-SpaceInEmptyParentheses: false
-SpacesInCStyleCastParentheses: false
-SpaceAfterCStyleCast: false
-SpacesInContainerLiterals: true
-SpaceBeforeAssignmentOperators: true
-ContinuationIndentWidth: 4
-ForEachMacros: [ foreach, Q_FOREACH, BOOST_FOREACH ]
-SpaceBeforeParens: ControlStatements
-DisableFormat: false
-AlignConsecutiveAssignments: Consecutive
-...
-
diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index 79194de..0000000
--- a/.gitignore
+++ /dev/null
@@ -1,23 +0,0 @@
-# Building stuff
-build-*
-*.dll
-*.exe
-*.so
-*.so.*
-DIST/*
-shot-????.bmp
-shot-????.png
-.vscode
-.DS_Store
-*/DIST/*
-/CMakeFiles/
-Makefile
-cmake_install.cmake
-CMakeCache.txt
-cmake-build-*
-build
-build-*
-.idea
-
-# Results
-libGameLib.a
diff --git a/CMakeLists.txt b/CMakeLists.txt
deleted file mode 100644
index bf2ae42..0000000
--- a/CMakeLists.txt
+++ /dev/null
@@ -1,58 +0,0 @@
-cmake_minimum_required(VERSION 3.10)
-
-project(GameLib)
-
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/")
-
-if (EMSCRIPTEN)
-    message(" * Ignore SDL2 package with Emscripten")
-    SET(CMAKE_C_FLAGS  "${CMAKE_C_FLAGS} -s USE_SDL=2 -Wno-implicit-function-declaration -DEMSCRIPTEN")
-    SET(CMAKE_EXE_LINKER_FLAGS  "${CMAKE_EXE_LINKER_FLAGS} -s USE_SDL=2 -s TOTAL_MEMORY=134217728 -lidbfs.js")
-else()
-    find_package(SDL2 REQUIRED)
-    include_directories(${SDL2_INCLUDE_DIRS})
-endif()
-
-set(OpenGL_GL_PREFERENCE GLVND)
-find_package(OpenGL REQUIRED)
-
-
-# -------------------------------------------------------------
-# ----- GameLib
-
-set(GAMELIB_HEADERS_PATH ${CMAKE_CURRENT_SOURCE_DIR}/src)
-
-set(GAMELIB_HEADERS 
-    src/TimeUtils.h
-    src/Util.h
-    src/QuadArray2D.h
-    src/Draw.h
-    src/Input.h
-    src/Audio.h
-    src/Anim.h
-    src/Entity.h
-    src/Bucket.h
-    src/GameLib.h)
-
-set(GAMELIB_SOURCE
-    src/TimeUtils.c
-    src/Util.c
-    src/QuadArray2D.c
-    src/Draw.c
-    src/Input.c
-    src/Audio.c
-    src/Anim.c
-    src/Entity.c
-    src/Bucket.c
-    src/GameLib.c)
-
-add_library(GameLib STATIC
-    ${GAMELIB_HEADERS} ${GAMELIB_SOURCE})
-target_include_directories(GameLib PRIVATE ${GAMELIB_HEADERS_PATH})
-set(GAMELIB_LIBRARIES ${SDL2_LIBRARIES} ${OPENGL_LIBRARY} m GameLib)
-
-get_directory_property(hasParent PARENT_DIRECTORY)
-if(hasParent)
-    set(GAMELIB_HEADERS_PATH ${GAMELIB_HEADERS_PATH} PARENT_SCOPE)
-    set(GAMELIB_LIBRARIES ${GAMELIB_LIBRARIES} PARENT_SCOPE)
-endif()
diff --git a/Example.GameLib/.clang-format b/Example.GameLib/.clang-format
deleted file mode 100644
index 2bbf5d1..0000000
--- a/Example.GameLib/.clang-format
+++ /dev/null
@@ -1,63 +0,0 @@
----
-Language: Cpp
-# BasedOnStyle:  LLVM
-AccessModifierOffset: -2
-AlignAfterOpenBracket: AlwaysBreak
-AlignOperands: true
-AlignTrailingComments: true
-AllowAllParametersOfDeclarationOnNextLine: false
-AllowShortBlocksOnASingleLine: Always
-AllowShortCaseLabelsOnASingleLine: false
-AllowShortIfStatementsOnASingleLine: false
-AllowShortLoopsOnASingleLine: false
-AllowShortFunctionsOnASingleLine: All
-AlwaysBreakAfterDefinitionReturnType: None
-AlwaysBreakTemplateDeclarations: No
-AlwaysBreakBeforeMultilineStrings: false
-BreakBeforeBinaryOperators: None
-BreakBeforeTernaryOperators: true
-BreakConstructorInitializersBeforeComma: false
-BinPackParameters: true
-BinPackArguments: false
-ColumnLimit: 120
-ConstructorInitializerAllOnOneLineOrOnePerLine: false
-ConstructorInitializerIndentWidth: 4
-DerivePointerAlignment: false
-ExperimentalAutoDetectBinPacking: false
-IndentCaseLabels: false
-IndentWrappedFunctionNames: false
-MaxEmptyLinesToKeep: 1
-KeepEmptyLinesAtTheStartOfBlocks: true
-NamespaceIndentation: None
-ObjCBlockIndentWidth: 2
-ObjCSpaceAfterProperty: false
-ObjCSpaceBeforeProtocolList: true
-PenaltyBreakBeforeFirstCallParameter: 19
-PenaltyBreakComment: 300
-PenaltyBreakString: 1000
-PenaltyBreakFirstLessLess: 120
-PenaltyExcessCharacter: 1000000
-PenaltyReturnTypeOnItsOwnLine: 60
-PointerAlignment: Right
-SpacesBeforeTrailingComments: 1
-Cpp11BracedListStyle: true
-Standard: c++11
-IndentWidth: 4
-TabWidth: 4
-UseTab: AlignWithSpaces
-BreakBeforeBraces: Attach
-SpacesInParentheses: false
-SpacesInSquareBrackets: false
-SpacesInAngles: false
-SpaceInEmptyParentheses: false
-SpacesInCStyleCastParentheses: false
-SpaceAfterCStyleCast: false
-SpacesInContainerLiterals: true
-SpaceBeforeAssignmentOperators: true
-ContinuationIndentWidth: 4
-ForEachMacros: [ foreach, Q_FOREACH, BOOST_FOREACH ]
-SpaceBeforeParens: ControlStatements
-DisableFormat: false
-AlignConsecutiveAssignments: Consecutive
-...
-
diff --git a/Example.GameLib/.gitignore b/Example.GameLib/.gitignore
deleted file mode 100644
index 59cb3d6..0000000
--- a/Example.GameLib/.gitignore
+++ /dev/null
@@ -1,20 +0,0 @@
-# Building stuff
-build-*
-*.dll
-*.exe
-*.so
-*.so.*
-DIST/*
-shot-????.bmp
-shot-????.png
-.vscode
-.DS_Store
-*/DIST/*
-/CMakeFiles/
-Makefile
-cmake_install.cmake
-CMakeCache.txt
-cmake-build-*/
-
-# Results
-game
diff --git a/Example.GameLib/CMakeLists.txt b/Example.GameLib/CMakeLists.txt
deleted file mode 100644
index c988f74..0000000
--- a/Example.GameLib/CMakeLists.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-cmake_minimum_required(VERSION 3.10)
-
-project(Example.GameLib)
-
-IF (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/GameLib)
-    add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/GameLib ${CMAKE_CURRENT_BINARY_DIR}/GameLib)
-elseif (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/../GameLib)
-    add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../GameLib ${CMAKE_CURRENT_BINARY_DIR}/GameLib)
-elseif (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/../../GameLib)
-    add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../../GameLib ${CMAKE_CURRENT_BINARY_DIR}/GameLib)
-endif ()
-
-if (EMSCRIPTEN)
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s USE_SDL=2 -O2 -Wno-implicit-function-declaration -DEMSCRIPTEN")
-    SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s USE_SDL=2 -s TOTAL_MEMORY=134217728 -lidbfs.js --preload-file ${CMAKE_CURRENT_SOURCE_DIR}/data@/data")
-    SET(CMAKE_EXECUTABLE_SUFFIX ".html")
-endif ()
-
-
-# -------------------------------------------------------------
-# ----- Example.GameLib
-
-
-set(GAME_HEADERS_PATH ${CMAKE_CURRENT_SOURCE_DIR}/src)
-
-set(GAME_HEADERS
-    src/GameEnts.h
-    src/GameMap.h)
-
-set(GAME_SOURCE
-    src/GameEnts.c
-    src/GameMap.c
-    src/main.c)
-
-add_executable(game WIN32 
-    ${GAME_HEADERS} ${GAME_SOURCE})
-target_include_directories(game PRIVATE
-    ${GAMELIB_HEADERS_PATH}
-    ${GAME_HEADERS_PATH})
-target_link_libraries(game ${GAMELIB_LIBRARIES})
diff --git a/Example.GameLib/data/background.png b/Example.GameLib/data/background.png
deleted file mode 100644
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diff --git a/Example.GameLib/data/level_01.txt b/Example.GameLib/data/level_01.txt
deleted file mode 100644
index 4141de4..0000000
--- a/Example.GameLib/data/level_01.txt
+++ /dev/null
@@ -1,71 +0,0 @@
-######################
-######################
-######################
-######################
-######################
-######################
-######################
-######################
-######################
-######################
-##################  ##
-###############
-#############
-#############
-##############
-########## ###
-#########   ###
-########     ##
-########     ##
-########    ##  |||||
-########
-#########
-##########
-###########
-############
-#############
-######## ## #
-######### ###
-######## ## #
-#############
-#############
-########
-##########
-########
-###########
-########
-########
-############
-########
-#############
-########
-########
-########  #
-########  #
-########
-########
-########
-########  P
-########
-########
-########
-########
-########
-########
-########
-########
-#########
-########
-########
-#########
-######################
-######################
-######################
-######################
-######################
-######################
-######################
-######################
-######################
-######################
-
diff --git a/Example.GameLib/data/platform.png b/Example.GameLib/data/platform.png
deleted file mode 100644
index 09fa29290e3530f0b28f0ff1122bf93e9a2ca1da..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

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diff --git a/Example.GameLib/data/player.png b/Example.GameLib/data/player.png
deleted file mode 100644
index fbb9061a73928673bae32c5333bb366b44673c92..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

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diff --git a/Example.GameLib/dev-server.sh b/Example.GameLib/dev-server.sh
deleted file mode 100644
index db8d5d8..0000000
--- a/Example.GameLib/dev-server.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#! /bin/sh
-
-(sleep 1 && xdg-open http://localhost:8081) &
-
-php -S 0.0.0.0:8081 -t DIST/web
\ No newline at end of file
diff --git a/Example.GameLib/dist-emscripten.sh b/Example.GameLib/dist-emscripten.sh
deleted file mode 100644
index 102e409..0000000
--- a/Example.GameLib/dist-emscripten.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/sh
-
-if test -f /c/emsdk/emsdk_env.sh; then
-    . /c/emsdk/emsdk_env.sh
-fi
-
-if test -d cmake-build-emscripten; then
-    rm -rf cmake-build-emscripten
-fi
-mkdir cmake-build-emscripten
-
-cd cmake-build-emscripten || exit
-emcmake cmake ..
-make
-cd ..
-
-mkdir -p DIST/web
-cp -Rv web/* DIST/web/
-cp -Rv cmake-build-emscripten/game.* DIST/web/
diff --git a/Example.GameLib/src/GameEnts.c b/Example.GameLib/src/GameEnts.c
deleted file mode 100644
index ebce181..0000000
--- a/Example.GameLib/src/GameEnts.c
+++ /dev/null
@@ -1,179 +0,0 @@
-// Copyright (C) 2012-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "GameLib.h"
-
-#include "GameEnts.h"
-
-DrawImg img_player;
-DrawImg img_platform;
-DrawImg img_block;
-
-Entity ent_Player;
-Entity ent_Platform;
-Entity ent_Block;
-
-int EntityApplyGravity(Entity e) {
-	float grav      = 10.0f;
-	float vTerminal = 50.0f;
-	vec2 vGrav;
-
-	// Only apply gravity to some entity types
-	if (!(e->type == Ent_Player || 0)) {
-		return (1);
-	}
-
-	// Apply gravity
-	vec2_set(vGrav, 0.0f, grav);
-	Entity_AddVelLimit(e, vGrav, vTerminal);
-
-	return (1);
-}
-
-void Player_Proc(Entity e, int ft) {
-	float acel              = 8.0f;
-	float maxVel            = 30.0f;
-	float jumpVel           = 50.0f;
-	float airMovementFactor = 0.1f;
-
-	// Process elasticity
-	float entityScale[2];
-	Entity_GetScale(e, entityScale);
-	entityScale[0] += (1.0f - entityScale[0]) / 2.0f;
-	entityScale[1] += (1.0f - entityScale[1]) / 2.0f;
-	Entity_SetScale(e, entityScale);
-
-	if (e->A > 0) {
-		if (Input_GetKey(InputKey_Jump) == InputKey_Pressed || Input_GetKey(InputKey_Up) == InputKey_Pressed) {
-
-			// Apply jump
-			if (e->vel[1] > (-jumpVel)) {
-				e->vel[1] = -jumpVel;
-			}
-			Entity_CalcBBox(e);
-
-			Entity_SetScale(e, (float[2]){0.6f, 1.4f});
-
-			// FIXME: play sound
-		}
-		if (Input_GetKey(InputKey_Left)) {
-			vec2 left;
-
-			// Apply left movement
-			vec2_set(left, -acel, 0.0f);
-			Entity_AddVelLimit(e, left, maxVel);
-		}
-		if (Input_GetKey(InputKey_Right)) {
-			vec2 right;
-
-			// Apply right movement
-			vec2_set(right, acel, 0.0f);
-			Entity_AddVelLimit(e, right, maxVel);
-		}
-	} else {
-		if (Input_GetKey(InputKey_Left)) {
-			vec2 left;
-
-			// Apply left movement
-			vec2_set(left, -(acel * airMovementFactor), 0.0f);
-			Entity_AddVelLimit(e, left, maxVel * airMovementFactor);
-		}
-		if (Input_GetKey(InputKey_Right)) {
-			vec2 right;
-
-			// Apply right movement
-			vec2_set(right, acel * airMovementFactor, 0.0f);
-			Entity_AddVelLimit(e, right, maxVel * airMovementFactor);
-		}
-	}
-	if (Input_GetKey(InputKey_Action1) == InputKey_Pressed || Input_GetKey(InputKey_Action2) == InputKey_Pressed) {
-		Entity_SetScale(e, (float[2]){1.0f, 1.0f});
-	}
-
-	e->A = 0;
-}
-
-void Player_PostProc(Entity e, int ft) {
-
-	// Scroll View
-	GameLib_MoveToPos(e->pos, 0.6f);
-	// GameLib_MoveToPos(e->pos, 1.0f);
-}
-
-int Player_Collision(Entity ent, Entity ent2, float t, vec2 n) {
-	if (n[1] < 0 && fabs(n[1]) > fabs(n[0])) {
-		ent->A = 1;
-	}
-
-	if (fabs(n[0]) > fabs(n[1])) {
-		float intensity = (fabs(ent->vel[0]) - 10.0f) / 40.0f;
-		if (intensity > 0) {
-			Entity_SetScale(ent, (float[2]){1.0f - (0.3f * intensity), 1.0f + (0.3f * intensity)});
-		}
-	} else {
-		float intensity = (fabs(ent->vel[1]) - 10.0f) / 40.0f;
-		if (intensity > 0) {
-			Entity_SetScale(ent, (float[2]){1.0f + (0.3f * intensity), 1.0f - (0.3f * intensity)});
-		}
-	}
-	return -1;
-}
-
-void GameEnts_Init() {
-
-	/////////////////////////////
-	// Load and initialize media.
-	//
-
-	img_player   = Draw_LoadImage("data/player.png");
-	img_platform = Draw_LoadImage("data/platform.png");
-	img_block    = Draw_LoadImage("data/block.png");
-
-	/////////////////////////
-	// Initialize entity types.
-	//
-
-	ent_Player       = Entity_New();
-	ent_Player->type = Ent_Player;
-	// ent_Player->flags=EntityFlag_Light;
-	// Entity_SetLight(ent_Player,.2,.2,.2,200);
-	ent_Player->flags  = EntityFlag_Collision | EntityFlag_Overlap;
-	ent_Player->zorder = 0;
-	AnimPlay_SetImg(&ent_Player->anim, img_player);
-	ent_Player->proc         = Player_Proc;
-	ent_Player->postproc     = Player_PostProc;
-	ent_Player->collision    = Player_Collision;
-	ent_Player->mass         = 1.0f;
-	ent_Player->radius       = 12;
-	ent_Player->width        = 24;
-	ent_Player->height       = 24;
-	ent_Player->fric_static  = 0.0f;
-	ent_Player->fric_dynamic = 0.2f;
-
-	ent_Platform         = Entity_New();
-	ent_Platform->type   = Ent_Platform;
-	ent_Platform->flags  = EntityFlag_PlatformCollision;
-	ent_Platform->zorder = -1;
-	AnimPlay_SetImg(&ent_Platform->anim, img_platform);
-	ent_Platform->mass         = 0.0f;
-	ent_Platform->radius       = 12;
-	ent_Platform->width        = 64;
-	ent_Platform->height       = 16;
-	ent_Platform->fric_static  = 0.0f;
-	ent_Platform->fric_dynamic = 0.2f;
-
-	ent_Block         = Entity_New();
-	ent_Block->type   = Ent_Block;
-	ent_Block->flags  = EntityFlag_BlockCollision;
-	ent_Block->zorder = -1;
-	AnimPlay_SetImg(&ent_Block->anim, img_block);
-	ent_Block->mass         = 0.0f;
-	ent_Block->radius       = 32;
-	ent_Block->width        = 64;
-	ent_Block->height       = 64;
-	ent_Block->fric_static  = 0.0f;
-	ent_Block->fric_dynamic = 0.2f;
-}
\ No newline at end of file
diff --git a/Example.GameLib/src/GameEnts.h b/Example.GameLib/src/GameEnts.h
deleted file mode 100644
index c76dbef..0000000
--- a/Example.GameLib/src/GameEnts.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (C) 2012-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifndef GameEnts_H
-#define GameEnts_H
-
-#define Ent_Player 1
-#define Ent_Platform 2
-#define Ent_Block 3
-
-extern Entity ent_Player;
-extern Entity ent_Platform;
-extern Entity ent_Block;
-
-int EntityApplyGravity(Entity e);
-
-void GameEnts_Init();
-
-#endif
diff --git a/Example.GameLib/src/GameMap.c b/Example.GameLib/src/GameMap.c
deleted file mode 100644
index 7dbad45..0000000
--- a/Example.GameLib/src/GameMap.c
+++ /dev/null
@@ -1,114 +0,0 @@
-// Copyright (C) 2012-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "GameLib.h"
-
-#include "GameEnts.h"
-#include "GameMap.h"
-
-int ReadLine(FILE *f, char *line, int max) {
-	int c;
-	int i = 0;
-	while (i < (max - 1)) {
-		c = fgetc(f);
-		if (c == EOF) {
-			line[i] = 0;
-			return (-1);
-		}
-		if (c == '\r') {
-			continue;
-		}
-		if (c == '\n') {
-			line[i] = 0;
-			return (i);
-		}
-		line[i] = c;
-		i++;
-	}
-	line[i] = 0;
-	return (i);
-}
-
-Entity GameMapAux_CreateEnt(Entity ent, int i, int j, int res) {
-	Entity e;
-	vec2 pos;
-	e = Entity_Copy(ent);
-	vec2_set(pos, (res / 2) + i * res, (res / 2) + j * res);
-	vec2_plus(e->pos, e->pos, pos);
-	GameLib_AddEntity(e);
-	return (e);
-}
-
-#define MaxLineLen 1024
-
-int GameMap_LoadLevel(char *filename, int res) {
-	FILE *file;
-	char line[MaxLineLen];
-	int len, i, j;
-	int width, height;
-	char *map;
-
-	// Open the file
-	file = fopen(filename, "rb");
-	if (!file) {
-		return (0);
-	}
-
-	// Read the file to determine sizes
-	width  = 0;
-	height = 0;
-	do {
-		len = ReadLine(file, line, MaxLineLen);
-		if (len > -1) {
-			if (len > height) {
-				height = len;
-			}
-			width++;
-		}
-	} while (len > -1);
-	fseek(file, 0, SEEK_SET);
-
-	// Build the map
-	map = malloc(sizeof(char) * width * height);
-	memset(map, 0, width * height);
-#define MAP(x, y) map[(x) + ((y) * width)]
-	j = 0;
-	do {
-		len = ReadLine(file, line, MaxLineLen);
-		for (i = 0; i < len; i++) {
-			MAP(j, (height - 1) - i) = line[i];
-		}
-		j++;
-	} while (len > -1);
-
-	// Close the file
-	fclose(file);
-
-	// Parse the map
-	for (j = 0; j < height; j++) {
-		for (i = 0; i < width; i++) {
-			if (MAP(i, j) == 'P') {
-				// Player
-				GameMapAux_CreateEnt(ent_Player, i, j, res);
-			}
-			if (MAP(i, j) == '#') {
-				// Block
-				GameMapAux_CreateEnt(ent_Block, i, j, res);
-			}
-			if (MAP(i, j) == '|') {
-				// Platform
-				GameMapAux_CreateEnt(ent_Platform, i, j, res);
-			}
-		}
-	}
-
-	// Cleanup
-	free(map);
-#undef MAP
-
-	return (1);
-}
\ No newline at end of file
diff --git a/Example.GameLib/src/GameMap.h b/Example.GameLib/src/GameMap.h
deleted file mode 100644
index 28e15e7..0000000
--- a/Example.GameLib/src/GameMap.h
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (C) 2012-2023 Valeriano Alfonso Rodriguez (Kableado)
-#ifndef GameMap_H
-#define GameMap_H
-
-int GameMap_LoadLevel(char *filename, int res);
-
-#endif
diff --git a/Example.GameLib/src/main.c b/Example.GameLib/src/main.c
deleted file mode 100644
index be75c1a..0000000
--- a/Example.GameLib/src/main.c
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (C) 2012-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "GameLib.h"
-
-#include "GameEnts.h"
-#include "GameMap.h"
-
-DrawFnt font;
-DrawImg imgBackground;
-
-void MainGame_Text(int x, int y, char *text) {
-	Draw_SetColor(0.0f, 0.0f, 0.0f, 0.5f);
-	Draw_DrawText(font, text, x + 1, y + 1);
-	Draw_SetColor(1.0f, 1.0f, 1.0f, 1.0f);
-	Draw_DrawText(font, text, x, y);
-}
-
-void ProcGame() {}
-void PostProcGame() {
-	// Apply gravity to every entity
-	GameLib_ForEachEnt(EntityApplyGravity);
-}
-void PreDrawGame(float f) {}
-void DrawGame(float f) { MainGame_Text(8, 8, "Hello world!"); }
-
-int main(int argc, char *argv[]) {
-
-	GameLib_Init(640, 480, "Game", 20, 60);
-
-	/////////////////////////////
-	// Load and initialize media.
-	//
-	font          = Draw_DefaultFont((ColorRgba){255, 255, 255, 255});
-	imgBackground = Draw_LoadImage("data/background.png");
-	Draw_SetOffset(imgBackground, 0, 0);
-	GameEnts_Init();
-
-	/////////////////////////
-	// Initialize world.
-	//
-	GameLib_DelEnts();
-	GameMap_LoadLevel("data/level_01.txt", 64);
-
-	/////////////////////////
-	// Run the world.
-	//
-	GameLib_CleanParallaxBackgrounds();
-	GameLib_AddParallaxBackground(imgBackground, (int[2]){512, 512}, (int[2]){0, 0}, (float[2]){0.5f, 0.0f});
-	GameLib_Loop(ProcGame, PostProcGame, PreDrawGame, DrawGame);
-
-	return (0);
-}
\ No newline at end of file
diff --git a/Example.GameLib/web/index.html b/Example.GameLib/web/index.html
deleted file mode 100644
index 488eac5..0000000
--- a/Example.GameLib/web/index.html
+++ /dev/null
@@ -1,157 +0,0 @@
-<!doctype html>
-<html lang="en">
-
-<head>
-	<meta charset="utf-8">
-	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-	<title>Game</title>
-</head>
-<style>
-	html,
-	body {
-		height: 100%;
-		margin: 0;
-		padding: 0;
-		font-family: Verdana, Arial, Helvetica, sans-serif;
-		background-color: #000000;
-		color: #777777;
-		font-size: 10pt;
-	}
-
-	h1 {
-		text-align: left;
-		margin-top: 0;
-		margin-bottom: 1em;
-		font-size: 16pt;
-		font-weight: bold;
-	}
-
-	.header {
-		margin: 0 auto;
-		width: 600px;
-		padding-top: 10px;
-		text-align: center;
-	}
-
-	.progress-container {
-		border: 1px solid #808080;
-		border-radius: 5px;
-		padding: 5px;
-		box-shadow: 0 0 5px #808080;
-		width: 600px;
-		display: block;
-		margin: 0 auto;
-	}
-
-	.progress-container progress {
-		width: 100%;
-	}
-
-	.game-screen-container {
-		display: block;
-		width: 100%;
-		padding-top: 10px;
-	}
-
-	.game-screen-container canvas {
-		border: 1px solid #808080;
-		border-radius: 5px;
-		padding: 5px;
-		box-shadow: 0 0 5px #808080;
-		margin: 0 auto;
-		cursor: none;
-	}
-</style>
-
-<body>
-	<div class="game-screen-container">
-		<div id="progress-container" class="progress-container">
-			<h1>Loading...</h1>
-			<span>Code:</span><br/>
-			<progress id="progress-code" max="1" value="0"></progress><br/>
-			<br/>
-			<span>Data:</span><br/>
-			<progress id="progress-data" max="1" value="0"></progress><br/>
-		</div>
-		<div style="width:0;height:0;position:absolute;display:block;overflow:hidden;">
-			<input type="button" id="btnFocus" value="focus" />
-		</div>
-		<canvas class="game-screen" id="canvas" style="display:none;" oncontextmenu="event.preventDefault()"
-			onclick="document.getElementById('btnFocus').focus();"></canvas>
-	</div>
-
-	<script type='text/javascript'>
-		var Module = {
-			preRun: [function () {
-				FS.mkdir('/saves');
-				FS.mount(IDBFS, {}, '/saves');
-				addRunDependency("SaveDir");
-				FS.syncfs(true, function (err) {
-					removeRunDependency("SaveDir");
-				});
-			}],
-			postRun: [],
-			progressContainer: document.getElementById('progress-container'),
-			progressCode: document.getElementById('progress-code'),
-			progressData: document.getElementById('progress-data'),
-			printErr: function (text) {
-				if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
-				if (console && console.log) {
-					console.log(text);
-				}
-			},
-			canvas: (function () {
-				var canvas = document.getElementById('canvas');
-
-				// As a default initial behavior, pop up an alert when webgl context is lost. To make your
-				// application robust, you may want to override this behavior before shipping!
-				// See http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.15.2
-				canvas.addEventListener("webglcontextlost", function (e) { alert('WebGL context lost. You will need to reload the page.'); e.preventDefault(); }, false);
-
-				return canvas;
-			})(),
-			setStatus: function (text) {
-				var m = text.match(/([^(]+)\((\d+(\.\d+)?)\/(\d+)\)/);
-				if (m) {
-					this.progressData.value = parseInt(m[2]);
-					this.progressData.max = parseInt(m[4]);
-				}
-			},
-			totalDependencies: 0,
-			monitorRunDependencies: function (left) {
-				this.totalDependencies = Math.max(this.totalDependencies, left);
-				if (!left) {
-					// All loaded
-					this.progressContainer.style.display = "none";
-					this.canvas.style.display = "block";
-				}
-			},
-			LaunchCode: function () {
-				var xhr = new XMLHttpRequest();
-				xhr.open('GET', "game.js", true);
-				xhr.responseType = 'text';
-				xhr.onprogress = function (event) {
-					this.progressCode.value = event.loaded;
-					this.progressCode.max = event.total;
-				}.bind(this);
-				xhr.onload = function (event) {
-					var packageData = xhr.response;
-					// Launch loaded code
-					try {
-						eval.call(null, packageData);
-					} catch (e) {
-						alert("Error " + parent + " " + e);
-						parent.postMessage("Error", "");
-					}
-				};
-				xhr.onerror = function (event) {
-					alert(event);
-				};
-				xhr.send(null);
-			}
-		};
-		Module.LaunchCode();
-	</script>
-</body>
-
-</html>
\ No newline at end of file
diff --git a/LICENSE.txt b/LICENSE.txt
deleted file mode 100644
index 1d51e6a..0000000
--- a/LICENSE.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2012-2015 Valeriano Alfonso Rodriguez
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
\ No newline at end of file
diff --git a/cmake/FindSDL2.cmake b/cmake/FindSDL2.cmake
deleted file mode 100644
index d334240..0000000
--- a/cmake/FindSDL2.cmake
+++ /dev/null
@@ -1,202 +0,0 @@
-# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
-# file Copyright.txt or https://cmake.org/licensing for details.
-
-#.rst:
-# FindSDL2
-# -------
-#
-# Locate SDL2 library
-#
-# This module defines
-#
-# ::
-#
-#   SDL2_LIBRARY, the name of the library to link against
-#   SDL2_FOUND, if false, do not try to link to SDL
-#   SDL2_INCLUDE_DIR, where to find SDL.h
-#   SDL2_VERSION_STRING, human-readable string containing the version of SDL
-#
-#
-#
-# This module responds to the flag:
-#
-# ::
-#
-#   SDL2_BUILDING_LIBRARY
-#     If this is defined, then no SDL2_main will be linked in because
-#     only applications need main().
-#     Otherwise, it is assumed you are building an application and this
-#     module will attempt to locate and set the proper link flags
-#     as part of the returned SDL2_LIBRARY variable.
-#
-#
-#
-# Don't forget to include SDLmain.h and SDLmain.m your project for the
-# OS X framework based version.  (Other versions link to -lSDL2main which
-# this module will try to find on your behalf.) Also for OS X, this
-# module will automatically add the -framework Cocoa on your behalf.
-#
-#
-#
-# Additional Note: If you see an empty SDL2_LIBRARY_TEMP in your
-# configuration and no SDL2_LIBRARY, it means CMake did not find your SDL
-# library (SDL.dll, libsdl.so, SDL.framework, etc).  Set
-# SDL2_LIBRARY_TEMP to point to your SDL library, and configure again.
-# Similarly, if you see an empty SDL2MAIN_LIBRARY, you should set this
-# value as appropriate.  These values are used to generate the final
-# SDL2_LIBRARY variable, but when these values are unset, SDL2_LIBRARY
-# does not get created.
-#
-#
-#
-# $SDL2DIR is an environment variable that would correspond to the
-# ./configure --prefix=$SDL2DIR used in building SDL.  l.e.galup 9-20-02
-#
-# Modified by Eric Wing.  Added code to assist with automated building
-# by using environmental variables and providing a more
-# controlled/consistent search behavior.  Added new modifications to
-# recognize OS X frameworks and additional Unix paths (FreeBSD, etc).
-# Also corrected the header search path to follow "proper" SDL
-# guidelines.  Added a search for SDL2main which is needed by some
-# platforms.  Added a search for threads which is needed by some
-# platforms.  Added needed compile switches for MinGW.
-#
-# On OSX, this will prefer the Framework version (if found) over others.
-# People will have to manually change the cache values of SDL2_LIBRARY to
-# override this selection or set the CMake environment
-# CMAKE_INCLUDE_PATH to modify the search paths.
-#
-# Note that the header path has changed from SDL/SDL.h to just SDL.h
-# This needed to change because "proper" SDL convention is #include
-# "SDL.h", not <SDL/SDL.h>.  This is done for portability reasons
-# because not all systems place things in SDL/ (see FreeBSD).
-
-message("<FindSDL2.cmake>")
-
-if(NOT SDL2_DIR)
-  set(SDL2_DIR "" CACHE PATH "SDL2 directory")
-endif()
-
-find_path(SDL2_INCLUDE_DIR SDL.h
-  HINTS
-    $ENV{SDL2DIR}
-    ${SDL2_DIR}
-  PATH_SUFFIXES SDL2
-                # path suffixes to search inside ENV{SDL2DIR}
-                include/SDL2 include
-)
-
-if(CMAKE_SIZEOF_VOID_P EQUAL 8)
-  set(VC_LIB_PATH_SUFFIX lib/x64)
-else()
-  set(VC_LIB_PATH_SUFFIX lib/x86)
-endif()
-
-find_library(SDL2_LIBRARY_TEMP
-  NAMES SDL2
-  HINTS
-    ENV SDL2DIR
-    ${SDL2_DIR}
-  PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
-)
-
-# Hide this cache variable from the user, it's an internal implementation
-# detail. The documented library variable for the user is SDL2_LIBRARY
-# which is derived from SDL2_LIBRARY_TEMP further below.
-set_property(CACHE SDL2_LIBRARY_TEMP PROPERTY TYPE INTERNAL)
-
-if(NOT SDL2_BUILDING_LIBRARY)
-  if(NOT SDL2_INCLUDE_DIR MATCHES ".framework")
-    # Non-OS X framework versions expect you to also dynamically link to
-    # SDL2main. This is mainly for Windows and OS X. Other (Unix) platforms
-    # seem to provide SDL2main for compatibility even though they don't
-    # necessarily need it.
-    find_library(SDL2MAIN_LIBRARY
-      NAMES SDL2main
-      HINTS
-        ENV SDL2DIR
-        ${SDL2_DIR}
-      PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
-      PATHS
-      /sw
-      /opt/local
-      /opt/csw
-      /opt
-    )
-  endif()
-endif()
-
-# SDL may require threads on your system.
-# The Apple build may not need an explicit flag because one of the
-# frameworks may already provide it.
-# But for non-OSX systems, I will use the CMake Threads package.
-if(NOT APPLE)
-  find_package(Threads)
-endif()
-
-# MinGW needs an additional link flag, -mwindows
-# It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -mwindows
-if(MINGW)
-  set(MINGW32_LIBRARY mingw32 "-mwindows" CACHE STRING "link flags for MinGW")
-endif()
-
-if(SDL2_LIBRARY_TEMP)
-  # For SDL2main
-  if(SDL2MAIN_LIBRARY AND NOT SDL2_BUILDING_LIBRARY)
-    list(FIND SDL2_LIBRARY_TEMP "${SDL2MAIN_LIBRARY}" _SDL2_MAIN_INDEX)
-    if(_SDL2_MAIN_INDEX EQUAL -1)
-      set(SDL2_LIBRARY_TEMP "${SDL2MAIN_LIBRARY}" ${SDL2_LIBRARY_TEMP})
-    endif()
-    unset(_SDL2_MAIN_INDEX)
-  endif()
-
-  # For OS X, SDL uses Cocoa as a backend so it must link to Cocoa.
-  # CMake doesn't display the -framework Cocoa string in the UI even
-  # though it actually is there if I modify a pre-used variable.
-  # I think it has something to do with the CACHE STRING.
-  # So I use a temporary variable until the end so I can set the
-  # "real" variable in one-shot.
-  if(APPLE)
-    set(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} "-framework Cocoa")
-  endif()
-
-  # For threads, as mentioned Apple doesn't need this.
-  # In fact, there seems to be a problem if I used the Threads package
-  # and try using this line, so I'm just skipping it entirely for OS X.
-  if(NOT APPLE)
-    set(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} ${CMAKE_THREAD_LIBS_INIT})
-  endif()
-
-  # For MinGW library
-  if(MINGW)
-    set(SDL2_LIBRARY_TEMP ${MINGW32_LIBRARY} ${SDL2_LIBRARY_TEMP})
-  endif()
-
-  # Set the final string here so the GUI reflects the final state.
-  set(SDL2_LIBRARY ${SDL2_LIBRARY_TEMP} CACHE STRING "Where the SDL Library can be found")
-endif()
-
-if(SDL2_INCLUDE_DIR AND EXISTS "${SDL2_INCLUDE_DIR}/SDL2_version.h")
-  file(STRINGS "${SDL2_INCLUDE_DIR}/SDL2_version.h" SDL2_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL2_MAJOR_VERSION[ \t]+[0-9]+$")
-  file(STRINGS "${SDL2_INCLUDE_DIR}/SDL2_version.h" SDL2_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL2_MINOR_VERSION[ \t]+[0-9]+$")
-  file(STRINGS "${SDL2_INCLUDE_DIR}/SDL2_version.h" SDL2_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL2_PATCHLEVEL[ \t]+[0-9]+$")
-  string(REGEX REPLACE "^#define[ \t]+SDL2_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_VERSION_MAJOR "${SDL2_VERSION_MAJOR_LINE}")
-  string(REGEX REPLACE "^#define[ \t]+SDL2_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_VERSION_MINOR "${SDL2_VERSION_MINOR_LINE}")
-  string(REGEX REPLACE "^#define[ \t]+SDL2_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_VERSION_PATCH "${SDL2_VERSION_PATCH_LINE}")
-  set(SDL2_VERSION_STRING ${SDL2_VERSION_MAJOR}.${SDL2_VERSION_MINOR}.${SDL2_VERSION_PATCH})
-  unset(SDL2_VERSION_MAJOR_LINE)
-  unset(SDL2_VERSION_MINOR_LINE)
-  unset(SDL2_VERSION_PATCH_LINE)
-  unset(SDL2_VERSION_MAJOR)
-  unset(SDL2_VERSION_MINOR)
-  unset(SDL2_VERSION_PATCH)
-endif()
-
-set(SDL2_LIBRARIES ${SDL2_LIBRARY} ${SDL2MAIN_LIBRARY})
-set(SDL2_INCLUDE_DIRS ${SDL2_INCLUDE_DIR})
-
-include(FindPackageHandleStandardArgs)
-
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2
-                                  REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR
-                                  VERSION_VAR SDL2_VERSION_STRING)
diff --git a/issues/.keep b/issues/.keep
new file mode 100644
index 0000000..e69de29
diff --git a/macosx/SDLMain.m b/macosx/SDLMain.m
deleted file mode 100644
index c214d32..0000000
--- a/macosx/SDLMain.m
+++ /dev/null
@@ -1,365 +0,0 @@
-/*   SDLMain.m - main entry point for our Cocoa-ized SDL app
-       Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
-       Non-NIB-Code & other changes: Max Horn <max@quendi.de>
-
-    Feel free to customize this file to suit your needs
-*/
-
-#import <Cocoa/Cocoa.h>
-#include <SDL.h>
-
-@interface SDLMain : NSObject
-@end
-
-#include <sys/param.h> /* for MAXPATHLEN */
-#include <unistd.h>
-
-/* For some reaon, Apple removed setAppleMenu from the headers in 10.4,
- but the method still is there and works. To avoid warnings, we declare
- it ourselves here. */
-@interface NSApplication (SDL_Missing_Methods)
-- (void)setAppleMenu:(NSMenu *)menu;
-@end
-
-/* Use this flag to determine whether we use SDLMain.nib or not */
-#define SDL_USE_NIB_FILE 0
-
-/* Use this flag to determine whether we use CPS (docking) or not */
-#define SDL_USE_CPS 1
-#ifdef SDL_USE_CPS
-/* Portions of CPS.h */
-typedef struct CPSProcessSerNum {
-	UInt32 lo;
-	UInt32 hi;
-} CPSProcessSerNum;
-
-extern OSErr CPSGetCurrentProcess(CPSProcessSerNum *psn);
-extern OSErr
-CPSEnableForegroundOperation(CPSProcessSerNum *psn, UInt32 _arg2, UInt32 _arg3, UInt32 _arg4, UInt32 _arg5);
-extern OSErr CPSSetFrontProcess(CPSProcessSerNum *psn);
-
-#endif /* SDL_USE_CPS */
-
-static int gArgc;
-static char **gArgv;
-static BOOL gFinderLaunch;
-static BOOL gCalledAppMainline = FALSE;
-
-static NSString *getApplicationName(void) {
-	const NSDictionary *dict;
-	NSString *appName = 0;
-
-	/* Determine the application name */
-	dict = (const NSDictionary *)CFBundleGetInfoDictionary(CFBundleGetMainBundle());
-	if (dict)
-		appName = [dict objectForKey:@"CFBundleName"];
-
-	if (![appName length])
-		appName = [[NSProcessInfo processInfo] processName];
-
-	return appName;
-}
-
-#if SDL_USE_NIB_FILE
-/* A helper category for NSString */
-@interface NSString (ReplaceSubString)
-- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
-@end
-#endif
-
-@interface NSApplication (SDLApplication)
-@end
-
-@implementation NSApplication (SDLApplication)
-/* Invoked from the Quit menu item */
-- (void)terminate:(id)sender {
-	/* Post a SDL_QUIT event */
-	SDL_Event event;
-	event.type = SDL_QUIT;
-	SDL_PushEvent(&event);
-}
-@end
-
-/* The main class of the application, the application's delegate */
-@implementation SDLMain
-
-/* Set the working directory to the .app's parent directory */
-- (void)setupWorkingDirectory:(BOOL)shouldChdir {
-	if (shouldChdir) {
-		char parentdir[MAXPATHLEN];
-		CFURLRef url  = CFBundleCopyBundleURL(CFBundleGetMainBundle());
-		CFURLRef url2 = CFURLCreateCopyDeletingLastPathComponent(0, url);
-		if (CFURLGetFileSystemRepresentation(url2, 1, (UInt8 *)parentdir, MAXPATHLEN)) {
-			chdir(parentdir); /* chdir to the binary app's parent */
-		}
-		CFRelease(url);
-		CFRelease(url2);
-	}
-}
-
-#if SDL_USE_NIB_FILE
-
-/* Fix menu to contain the real app name instead of "SDL App" */
-- (void)fixMenu:(NSMenu *)aMenu withAppName:(NSString *)appName {
-	NSRange aRange;
-	NSEnumerator *enumerator;
-	NSMenuItem *menuItem;
-
-	aRange = [[aMenu title] rangeOfString:@"SDL App"];
-	if (aRange.length != 0)
-		[aMenu setTitle:[[aMenu title] stringByReplacingRange:aRange with:appName]];
-
-	enumerator = [[aMenu itemArray] objectEnumerator];
-	while ((menuItem = [enumerator nextObject])) {
-		aRange = [[menuItem title] rangeOfString:@"SDL App"];
-		if (aRange.length != 0)
-			[menuItem setTitle:[[menuItem title] stringByReplacingRange:aRange with:appName]];
-		if ([menuItem hasSubmenu])
-			[self fixMenu:[menuItem submenu] withAppName:appName];
-	}
-}
-
-#else
-
-static void setApplicationMenu(void) {
-	/* warning: this code is very odd */
-	NSMenu *appleMenu;
-	NSMenuItem *menuItem;
-	NSString *title;
-	NSString *appName;
-
-	appName   = getApplicationName();
-	appleMenu = [[NSMenu alloc] initWithTitle:@""];
-
-	/* Add menu items */
-	title = [@"About " stringByAppendingString:appName];
-	[appleMenu addItemWithTitle:title action:@selector(orderFrontStandardAboutPanel:) keyEquivalent:@""];
-
-	[appleMenu addItem:[NSMenuItem separatorItem]];
-
-	title = [@"Hide " stringByAppendingString:appName];
-	[appleMenu addItemWithTitle:title action:@selector(hide:) keyEquivalent:@"h"];
-
-	menuItem = (NSMenuItem *)[appleMenu addItemWithTitle:@"Hide Others"
-												  action:@selector(hideOtherApplications:)
-										   keyEquivalent:@"h"];
-	[menuItem setKeyEquivalentModifierMask:(NSAlternateKeyMask | NSCommandKeyMask)];
-
-	[appleMenu addItemWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""];
-
-	[appleMenu addItem:[NSMenuItem separatorItem]];
-
-	title = [@"Quit " stringByAppendingString:appName];
-	[appleMenu addItemWithTitle:title action:@selector(terminate:) keyEquivalent:@"q"];
-
-	/* Put menu into the menubar */
-	menuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
-	[menuItem setSubmenu:appleMenu];
-	[[NSApp mainMenu] addItem:menuItem];
-
-	/* Tell the application object that this is now the application menu */
-	[NSApp setAppleMenu:appleMenu];
-
-	/* Finally give up our references to the objects */
-	[appleMenu release];
-	[menuItem release];
-}
-
-/* Create a window menu */
-static void setupWindowMenu(void) {
-	NSMenu *windowMenu;
-	NSMenuItem *windowMenuItem;
-	NSMenuItem *menuItem;
-
-	windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
-
-	/* "Minimize" item */
-	menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
-	[windowMenu addItem:menuItem];
-	[menuItem release];
-
-	/* Put menu into the menubar */
-	windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
-	[windowMenuItem setSubmenu:windowMenu];
-	[[NSApp mainMenu] addItem:windowMenuItem];
-
-	/* Tell the application object that this is now the window menu */
-	[NSApp setWindowsMenu:windowMenu];
-
-	/* Finally give up our references to the objects */
-	[windowMenu release];
-	[windowMenuItem release];
-}
-
-/* Replacement for NSApplicationMain */
-static void CustomApplicationMain(int argc, char **argv) {
-	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-	SDLMain *sdlMain;
-
-	/* Ensure the application object is initialised */
-	[NSApplication sharedApplication];
-
-#ifdef SDL_USE_CPS
-	{
-		CPSProcessSerNum PSN;
-		/* Tell the dock about us */
-		if (!CPSGetCurrentProcess(&PSN))
-			if (!CPSEnableForegroundOperation(&PSN, 0x03, 0x3C, 0x2C, 0x1103))
-				if (!CPSSetFrontProcess(&PSN))
-					[NSApplication sharedApplication];
-	}
-#endif /* SDL_USE_CPS */
-
-	/* Set up the menubar */
-	[NSApp setMainMenu:[[NSMenu alloc] init]];
-	setApplicationMenu();
-	setupWindowMenu();
-
-	/* Create SDLMain and make it the app delegate */
-	sdlMain = [[SDLMain alloc] init];
-	[NSApp setDelegate:sdlMain];
-
-	/* Start the main event loop */
-	[NSApp run];
-
-	[sdlMain release];
-	[pool release];
-}
-
-#endif
-
-/*
- * Catch document open requests...this lets us notice files when the app
- *  was launched by double-clicking a document, or when a document was
- *  dragged/dropped on the app's icon. You need to have a
- *  CFBundleDocumentsType section in your Info.plist to get this message,
- *  apparently.
- *
- * Files are added to gArgv, so to the app, they'll look like command line
- *  arguments. Previously, apps launched from the finder had nothing but
- *  an argv[0].
- *
- * This message may be received multiple times to open several docs on launch.
- *
- * This message is ignored once the app's mainline has been called.
- */
-- (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename {
-	const char *temparg;
-	size_t arglen;
-	char *arg;
-	char **newargv;
-
-	if (!gFinderLaunch) /* MacOS is passing command line args. */
-		return FALSE;
-
-	if (gCalledAppMainline) /* app has started, ignore this document. */
-		return FALSE;
-
-	temparg = [filename UTF8String];
-	arglen  = SDL_strlen(temparg) + 1;
-	arg     = (char *)SDL_malloc(arglen);
-	if (arg == NULL)
-		return FALSE;
-
-	newargv = (char **)realloc(gArgv, sizeof(char *) * (gArgc + 2));
-	if (newargv == NULL) {
-		SDL_free(arg);
-		return FALSE;
-	}
-	gArgv = newargv;
-
-	SDL_strlcpy(arg, temparg, arglen);
-	gArgv[gArgc++] = arg;
-	gArgv[gArgc]   = NULL;
-	return TRUE;
-}
-
-/* Called when the internal event loop has just started running */
-- (void)applicationDidFinishLaunching:(NSNotification *)note {
-	int status;
-
-	/* Set the working directory to the .app's parent directory */
-	[self setupWorkingDirectory:gFinderLaunch];
-
-#if SDL_USE_NIB_FILE
-	/* Set the main menu to contain the real app name instead of "SDL App" */
-	[self fixMenu:[NSApp mainMenu] withAppName:getApplicationName()];
-#endif
-
-	/* Hand off to main application code */
-	gCalledAppMainline = TRUE;
-	status             = SDL_main(gArgc, gArgv);
-
-	/* We're done, thank you for playing */
-	exit(status);
-}
-@end
-
-@implementation NSString (ReplaceSubString)
-
-- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString {
-	unsigned int bufferSize;
-	unsigned int selfLen    = [self length];
-	unsigned int aStringLen = [aString length];
-	unichar *buffer;
-	NSRange localRange;
-	NSString *result;
-
-	bufferSize = selfLen + aStringLen - aRange.length;
-	buffer     = (unichar *)NSAllocateMemoryPages(bufferSize * sizeof(unichar));
-
-	/* Get first part into buffer */
-	localRange.location = 0;
-	localRange.length   = aRange.location;
-	[self getCharacters:buffer range:localRange];
-
-	/* Get middle part into buffer */
-	localRange.location = 0;
-	localRange.length   = aStringLen;
-	[aString getCharacters:(buffer + aRange.location) range:localRange];
-
-	/* Get last part into buffer */
-	localRange.location = aRange.location + aRange.length;
-	localRange.length   = selfLen - localRange.location;
-	[self getCharacters:(buffer + aRange.location + aStringLen) range:localRange];
-
-	/* Build output string */
-	result = [NSString stringWithCharacters:buffer length:bufferSize];
-
-	NSDeallocateMemoryPages(buffer, bufferSize);
-
-	return result;
-}
-
-@end
-
-#ifdef main
-#undef main
-#endif
-
-/* Main entry point to executable - should *not* be SDL_main! */
-int main(int argc, char **argv) {
-	/* Copy the arguments into a global variable */
-	/* This is passed if we are launched by double-clicking */
-	if (argc >= 2 && strncmp(argv[1], "-psn", 4) == 0) {
-		gArgv         = (char **)SDL_malloc(sizeof(char *) * 2);
-		gArgv[0]      = argv[0];
-		gArgv[1]      = NULL;
-		gArgc         = 1;
-		gFinderLaunch = YES;
-	} else {
-		int i;
-		gArgc = argc;
-		gArgv = (char **)SDL_malloc(sizeof(char *) * (argc + 1));
-		for (i = 0; i <= argc; i++)
-			gArgv[i] = argv[i];
-		gFinderLaunch = NO;
-	}
-
-#if SDL_USE_NIB_FILE
-	NSApplicationMain(argc, argv);
-#else
-	CustomApplicationMain(argc, argv);
-#endif
-	return 0;
-}
diff --git a/src/Anim.c b/src/Anim.c
deleted file mode 100644
index 3f07316..0000000
--- a/src/Anim.c
+++ /dev/null
@@ -1,244 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "Anim.h"
-#include "Draw.h"
-
-////////////////////////////////////////////////
-// Animation //
-///////////////
-//
-typedef struct {
-	DrawImg img;
-	int32_t w;
-	float fps;
-	int32_t frames;
-	int32_t frameTime;
-	int32_t time;
-} Animation;
-
-/////////////////////////////
-// Anim_LoadAnim
-//
-//
-Anim Anim_LoadAnim(char *filename, int width, int frames, float fps) {
-	DrawImg img;
-	Animation *anim;
-	int w, h;
-
-	img = Draw_LoadImage(filename);
-	if (!img) {
-		return (NULL);
-	}
-	Draw_GetSize(img, &w, &h);
-	Draw_SetOffset(img, -(width / 2), -(h / 2));
-
-	// Create the animation container
-	anim      = malloc(sizeof(Animation));
-	anim->img = img;
-	anim->w   = width;
-	if (width <= 0) {
-		anim->w = w / frames;
-	}
-	anim->fps       = fps;
-	anim->frames    = frames;
-	anim->frameTime = (int)(1000.0f / fps);
-	anim->time      = anim->frameTime * frames;
-
-	return ((Anim)anim);
-}
-
-/////////////////////////////
-// Anim_GetTime
-//
-//
-int Anim_GetTime(Anim a) {
-	Animation *anim = a;
-
-	return (anim->time);
-}
-
-/////////////////////////////
-// Anim_GetSize
-//
-// Gets the animation size.
-void Anim_GetSize(Anim a, int *w, int *h) {
-	Animation *anim = a;
-	int widthAux;
-
-	*w = anim->w;
-	Draw_GetSize(anim->img, &widthAux, h);
-}
-
-/////////////////////////////
-// Anim_SetOffset
-// Anim_GetOffset
-//
-//
-void Anim_SetOffset(Anim a, int x, int y) {
-	Animation *anim = a;
-
-	Draw_SetOffset(anim->img, x, y);
-}
-void Anim_GetOffset(Anim a, int *x, int *y) {
-	Animation *anim = a;
-
-	Draw_GetOffset(anim->img, x, y);
-}
-
-/////////////////////////////
-// Anim_SetFlip
-// Anim_GetFlip
-//
-//
-void Anim_SetFlip(Anim a, int flip) {
-	Animation *anim = a;
-
-	Draw_SetFlip(anim->img, flip);
-}
-int Anim_GetFlip(Anim a) {
-	Animation *anim = a;
-
-	return Draw_GetFlip(anim->img);
-}
-
-/////////////////////////////
-// Anim_Draw
-//
-//
-void Anim_Draw(Anim a, int time_ms, int x, int y, float scale[2]) {
-	Animation *anim = a;
-	int frame;
-
-	frame = (time_ms / anim->frameTime) % anim->frames;
-	Draw_DrawImgPartHoriz(anim->img, x, y, anim->w, frame, scale);
-}
-
-/////////////////////////////
-// AnimPlay_Copy
-//
-//
-void AnimPlay_Copy(AnimPlay *ad, AnimPlay *ao) {
-	ad->img = ao->img;
-
-	ad->imgPart = ao->imgPart;
-	ad->w       = ao->w;
-	ad->h       = ao->h;
-	ad->i       = ao->i;
-	ad->j       = ao->j;
-
-	ad->anim    = ao->anim;
-	ad->time_ms = ao->time_ms;
-}
-
-/////////////////////////////
-// AnimPlay_SetImg
-// AnimPlay_SetAnim
-// AnimPlay_SetImgPart
-//
-//
-void AnimPlay_SetImg(AnimPlay *ap, DrawImg img) {
-	ap->anim    = NULL;
-	ap->time_ms = 0;
-
-	ap->img = img;
-
-	ap->imgPart = NULL;
-}
-void AnimPlay_SetAnim(AnimPlay *ap, Anim ani) {
-	ap->pause = 0;
-	if (ap->anim == ani) {
-		return;
-	}
-	ap->anim    = ani;
-	ap->time_ms = 0;
-
-	ap->img = NULL;
-
-	ap->imgPart = NULL;
-}
-void AnimPlay_SetImgPart(AnimPlay *ap, DrawImg img, int w, int h, int i, int j) {
-	ap->anim    = NULL;
-	ap->time_ms = 0;
-
-	ap->img = NULL;
-
-	ap->imgPart = img;
-	ap->w       = w;
-	ap->h       = h;
-	ap->i       = i;
-	ap->j       = j;
-}
-
-/////////////////////////////
-// AnimPlay_Draw
-//
-//
-void AnimPlay_Draw(AnimPlay *ani, int x, int y, float scale[2]) {
-	if (ani->anim) {
-		Anim_Draw(ani->anim, ani->time_ms, x, y, scale);
-		return;
-	}
-	if (ani->img) {
-		Draw_DrawImg(ani->img, x, y, scale);
-		return;
-	}
-	if (ani->imgPart) {
-		Draw_DrawImgPart(ani->imgPart, x, y, ani->w, ani->h, ani->i, ani->j, scale);
-		return;
-	}
-}
-
-/////////////////////////////
-// AnimPlay_GetOffset
-// AnimPlay_GetSize
-//
-//
-void AnimPlay_GetOffset(AnimPlay *ani, int *x, int *y) {
-	if (ani->anim) {
-		Anim_GetOffset(ani->anim, x, y);
-		return;
-	}
-	if (ani->img) {
-		Draw_GetOffset(ani->img, x, y);
-		return;
-	}
-	if (ani->imgPart) {
-		Draw_GetOffset(ani->imgPart, x, y);
-		return;
-	}
-}
-void AnimPlay_GetSize(AnimPlay *ani, int *w, int *h) {
-	if (ani->anim) {
-		Anim_GetSize(ani->anim, w, h);
-		return;
-	}
-	if (ani->img) {
-		Draw_GetSize(ani->img, w, h);
-		return;
-	}
-	if (ani->imgPart) {
-		Draw_GetSize(ani->imgPart, w, h);
-		return;
-	}
-}
-
-/////////////////////////////
-// AnimPlay_SetPause
-//
-//
-void AnimPlay_SetPause(AnimPlay *ani, int p) { ani->pause = p; }
-
-/////////////////////////////
-// AnimPlay_IncTime
-//
-//
-void AnimPlay_IncTime(AnimPlay *ani, int t) {
-	if (ani->anim) {
-		if (!ani->pause) {
-			ani->time_ms += t;
-		}
-	}
-}
diff --git a/src/Anim.h b/src/Anim.h
deleted file mode 100644
index 7c784d7..0000000
--- a/src/Anim.h
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifndef Amin_H
-#define Amin_H
-
-#include "Draw.h"
-
-////////////////////////////////////////////////
-// Anim //
-//////////
-//
-typedef void *Anim;
-
-/////////////////////////////
-// Anim_LoadAnim
-//
-//
-Anim Anim_LoadAnim(char *filename, int width, int frames, float fps);
-
-/////////////////////////////
-// Anim_GetTime
-//
-//
-int Anim_GetTime(Anim anim);
-
-/////////////////////////////
-// Anim_GetSize
-//
-// Gets the animation size.
-void Anim_GetSize(Anim anim, int *w, int *h);
-
-/////////////////////////////
-// Anim_SetOffset
-// Anim_GetOffset
-//
-//
-void Anim_SetOffset(Anim anim, int x, int y);
-void Anim_GetOffset(Anim anim, int *x, int *y);
-
-/////////////////////////////
-// Anim_SetFlip
-// Draw_GetFlip
-//
-//
-void Anim_SetFlip(Anim anim, int flip);
-int Anim_GetFlip(Anim anim);
-
-/////////////////////////////
-// Anim_Draw
-//
-//
-void Anim_Draw(Anim anim, int time_ms, int x, int y, float scale[2]);
-
-////////////////////////////////////////////////
-// AnimPlay //
-//////////////
-//
-typedef struct {
-	Anim anim;
-	int pause;
-	int time_ms;
-
-	DrawImg img;
-
-	DrawImg imgPart;
-	int w, h, i, j;
-
-} AnimPlay;
-
-/////////////////////////////
-// AnimPlay_Copy
-//
-//
-void AnimPlay_Copy(AnimPlay *ad, AnimPlay *ao);
-
-/////////////////////////////
-// AnimPlay_SetImg
-// AnimPlay_SetAnim
-// AnimPlay_SetImgPart
-//
-//
-void AnimPlay_SetImg(AnimPlay *ap, DrawImg img);
-void AnimPlay_SetAnim(AnimPlay *ap, Anim ani);
-void AnimPlay_SetImgPart(AnimPlay *ap, DrawImg img, int w, int h, int i, int j);
-
-/////////////////////////////
-// AnimPlay_Draw
-//
-//
-void AnimPlay_Draw(AnimPlay *ani, int x, int y, float scale[2]);
-
-/////////////////////////////
-// AnimPlay_GetOffset
-// AnimPlay_GetSize
-//
-//
-void AnimPlay_GetOffset(AnimPlay *ani, int *x, int *y);
-void AnimPlay_GetSize(AnimPlay *ani, int *w, int *h);
-
-/////////////////////////////
-// AnimPlay_SetPause
-//
-//
-void AnimPlay_SetPause(AnimPlay *ani, int p);
-
-/////////////////////////////
-// AnimPlay_IncTime
-//
-//
-void AnimPlay_IncTime(AnimPlay *ani, int t);
-
-#endif
diff --git a/src/Audio.c b/src/Audio.c
deleted file mode 100644
index bff10c9..0000000
--- a/src/Audio.c
+++ /dev/null
@@ -1,363 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifdef WIN32
-#define _WIN32_WINNT 0x0501
-#include <windows.h>
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <SDL.h>
-
-#include "Audio.h"
-#include "Util.h"
-
-static void Audio_MixerCallback(void *ud, Uint8 *stream, int l);
-
-////////////////////////////////////////////////
-// AudioWave //
-///////////////
-// Reference to a sound.
-typedef struct TAudioWave TAudioWave, *AudioWave;
-struct TAudioWave {
-	uint32_t sampleRate;
-	int32_t channels;
-	int32_t bpb;
-	int32_t BPB;
-	int32_t len;
-	uint8_t *buffer;
-
-	AudioWave next;
-};
-AudioWave g_Waves = NULL;
-
-////////////////////////////////////////////////
-// AudioChan //
-///////////////
-// Reference to a sound.
-typedef struct TAudioChan TAudioChan, *AudioChan;
-struct TAudioChan {
-	AudioWave wave;
-	int32_t pos;
-	uint8_t rightVolume;
-	uint8_t leftVolume;
-
-	int32_t loop;
-
-	AudioChan next;
-};
-AudioChan g_Channels     = NULL;
-AudioChan g_FreeChannels = NULL;
-
-static SDL_AudioDeviceID g_AudioDeviceID = 0;
-
-/////////////////////////////
-// Audio_Init
-//
-// Initializes the game audio.
-int Audio_Init() {
-	SDL_AudioSpec as;
-	SDL_AudioSpec as2;
-
-	// Initialize audio subsystem
-	if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
-		Print("ERROR: Audio_Init: Failure initializing SDL Audio. %s\n", SDL_GetError());
-		return (0);
-	}
-
-	// Open the audio device using the desired parameters
-	as.freq         = 44100;
-	as.format       = AUDIO_S16SYS;
-	as.channels     = 2;
-	as.samples      = 2048;
-	as.callback     = Audio_MixerCallback;
-	g_AudioDeviceID = SDL_OpenAudioDevice(NULL, 0, &as, &as2, 0);
-	if (g_AudioDeviceID == 0) {
-		Print("ERROR: Audio_Init: Failure opening audio. %s\n", SDL_GetError());
-		return (0);
-	}
-
-	// Asert results
-	if (as2.format != AUDIO_S16SYS || as2.freq != 44100 || as2.channels != 2) {
-		Print("ERROR: Audio_Init: Failure opening audio. (44.1Khz/16b/2c).\n");
-		SDL_CloseAudio();
-		return (0);
-	}
-
-	// Unpause and ready to go
-	SDL_PauseAudioDevice(g_AudioDeviceID, 0);
-
-	return (1);
-}
-
-/////////////////////////////
-// Audio_MixerCallback
-//
-// Mixes the audio channels.
-static void Audio_MixerCallback(void *ud, uint8_t *stream, int l) {
-	int16_t *ptr_out, *ptr_wave;
-	AudioChan previousChannel;
-	AudioChan chan;
-	AudioWave wave;
-	int len = l / 4; // Asume 16bpb and 2 output chan
-	int channelRemaining;
-	int len_mix;
-	int i;
-
-	// Clean
-	memset(stream, 0, l);
-
-	// Mix all the channels
-	previousChannel = NULL;
-	chan            = g_Channels;
-	while (chan) {
-		if (!chan->wave) {
-			// Remove finished channels
-			AudioChan aux_chan = chan->next;
-			chan->next         = g_FreeChannels;
-			g_FreeChannels     = chan;
-			chan               = aux_chan;
-			if (previousChannel) {
-				previousChannel->next = chan;
-			} else {
-				g_Channels = chan;
-			}
-			continue;
-		}
-
-		// Prepare the pointers
-		ptr_out  = (signed short *)stream;
-		ptr_wave = ((signed short *)chan->wave->buffer) + chan->pos;
-		wave     = chan->wave;
-
-		// Determine mixing length
-		channelRemaining = wave->len - chan->pos;
-		if (channelRemaining > len) {
-			len_mix = len;
-		} else {
-			if (chan->loop) {
-				len_mix = len;
-			} else {
-				len_mix = channelRemaining;
-			}
-			chan->wave = NULL;
-		}
-
-		// Mix the buffer
-		for (i = 0; i < len_mix; i++) {
-			int temp;
-
-			// Left Channel
-			temp = ptr_out[0];
-			temp += (ptr_wave[0] * chan->leftVolume) >> 8;
-			if (temp > (1 << 14)) {
-				ptr_out[0] = 1 << 14;
-			} else if (temp < -(1 << 14)) {
-				ptr_out[0] = -(1 << 14);
-			} else {
-				ptr_out[0] = (int16_t)temp;
-			}
-
-			// Right Channel
-			temp = ptr_out[1];
-			temp += (ptr_wave[0] * chan->rightVolume) >> 8;
-			if (temp > (1 << 14)) {
-				ptr_out[1] = 1 << 14;
-			} else if (temp < -(1 << 14)) {
-				ptr_out[1] = -(1 << 14);
-			} else {
-				ptr_out[1] = (int16_t)temp;
-			}
-
-			// Next sample
-			ptr_out += 2;
-			if (ptr_wave >= (((signed short *)wave->buffer) + (wave->len - 1))) {
-				ptr_wave = ((signed short *)wave->buffer);
-			} else {
-				ptr_wave++;
-			}
-		}
-		chan->pos += len_mix;
-
-		if (chan->wave == NULL && chan->loop == 1) {
-			chan->wave = wave;
-			while (chan->pos > wave->len) {
-				chan->pos -= wave->len;
-			}
-		}
-
-		// Next channel
-		previousChannel = chan;
-		chan            = chan->next;
-	}
-}
-
-/////////////////////////////
-// Audio_Frame
-//
-// Notify a frame update to the audio subsystem.
-void Audio_Frame() {}
-
-/////////////////////////////
-// Audio_LoadSound
-//
-// Loads a sound, giving a reference.
-AudioSnd Audio_LoadSound(char *filename) {
-	FILE *f;
-	char id[5] = {0, 0, 0, 0, 0}, *sndBuffer = NULL;
-	short formatTag, channels, bitsPerSample;
-	int formatLen, sampleRate, dataSize;
-
-	f = fopen(filename, "rb");
-	if (!f) {
-		Print("ERROR: Audio_LoadSound: Failure opening file. \"%s\".\n", filename);
-		return (NULL);
-	}
-
-	// Read id "RIFF"
-	fread(id, 4, sizeof(char), f);
-	if (strcmp(id, "RIFF") != 0) {
-		Print("ERROR: Audio_LoadSound: File is not RIFF. \"%s\".\n", filename);
-		fclose(f);
-		return (NULL);
-	}
-
-	// File size (-"RIFF")
-	fseek(f, 4, SEEK_CUR); // size
-
-	// Read id "WAVE"
-	fread(id, 4, sizeof(char), f);
-	if (strcmp(id, "WAVE") != 0) {
-		Print("ERROR:Audio_LoadSound: File is not WAVE. \"%s\".\n", filename);
-		fclose(f);
-		return (NULL);
-	}
-
-	// Read the format
-	fread(id, 1, sizeof(char) * 4, f); // Read "fmt "
-	fread(&formatLen, 1, sizeof(int), f);
-	if (formatLen < 14) {
-		Print("ERROR: Audio_LoadSound: File too short. \"%s\".\n", filename);
-		fclose(f);
-		return (NULL);
-	}
-	fread(&formatTag, 1, sizeof(short), f); // 1=PCM
-	if (formatTag != 1) {
-		Print("ERROR: Audio_LoadSound: Not PCM format. \"%s\".\n", filename);
-		fclose(f);
-		return (NULL);
-	}
-	fread(&channels, 1, sizeof(short), f);
-	fread(&sampleRate, 1, sizeof(int), f);
-	fseek(f, 2, SEEK_CUR); // avgBytesSec
-	fseek(f, 2, SEEK_CUR); // blockAlign
-	fread(&bitsPerSample, 1, sizeof(short), f);
-	fseek(f, formatLen - 14, SEEK_CUR); // Align read
-
-	// Assert sound format
-	if (sampleRate != 44100 || channels != 1 || bitsPerSample != 2) {
-		Print(
-			"ERROR: Audio_LoadSound: Format not supported: "
-			"sampleRate:%d; channels:%d; BPB:%d. \"%s\"\n",
-			sampleRate,
-			channels,
-			bitsPerSample,
-			filename);
-		fclose(f);
-		return (NULL);
-	}
-
-	// Skip no "data" blocks
-	do {
-		size_t lenRead = fread(id, 1, sizeof(char) * 4, f);
-		if (lenRead < 4) {
-			break;
-		}
-		if (strcmp(id, "data") != 0) {
-			fread(&dataSize, 1, sizeof(int), f);
-			fseek(f, dataSize, SEEK_CUR);
-		} else {
-			break;
-		}
-	} while (1);
-	if (strcmp(id, "data") != 0) {
-		Print("ERROR: Audio_LoadSound: DATA block not found. \"%s\".\n", filename);
-		fclose(f);
-		return (NULL);
-	}
-
-	// Read the "data" block
-	fread(&dataSize, 1, sizeof(int), f);
-	sndBuffer = malloc(sizeof(char) * dataSize);
-	fread(sndBuffer, dataSize, sizeof(char), f);
-
-	fclose(f);
-
-	// Build the wave object
-	AudioWave wave   = malloc(sizeof(TAudioWave));
-	wave->sampleRate = sampleRate;
-	wave->channels   = channels;
-	wave->buffer     = (Uint8 *)sndBuffer;
-	wave->BPB        = bitsPerSample;
-	wave->bpb        = wave->BPB * 8;
-	wave->len        = dataSize / (wave->BPB * wave->channels);
-
-	// Take a reference
-	wave->next = g_Waves;
-	g_Waves    = wave;
-
-	return (wave);
-}
-
-/////////////////////////////
-// Audio_PlaySound
-//
-// Loads a sound, giving a reference.
-AudioChn Audio_PlaySound(AudioSnd snd, float leftVolume, float rightVolume, int loop) {
-	AudioChan chan;
-	AudioWave wave;
-	if (!snd) {
-		return (NULL);
-	}
-
-	// Cast AudioSnd to AudioWave
-	wave = snd;
-
-	// Get a free channel
-	if (g_FreeChannels) {
-		chan           = g_FreeChannels;
-		g_FreeChannels = chan->next;
-		chan->next     = NULL;
-	} else {
-		chan       = malloc(sizeof(TAudioChan));
-		chan->next = NULL;
-	}
-
-	// Initialize the channel
-	chan->wave        = wave;
-	chan->pos         = 0;
-	chan->rightVolume = (uint8_t)(rightVolume * 255.0f);
-	chan->leftVolume  = (uint8_t)(leftVolume * 255.0f);
-	chan->loop        = loop;
-
-	// Include in sounds list
-	chan->next = g_Channels;
-	g_Channels = chan;
-
-	return chan;
-}
-
-/////////////////////////////
-// Audio_StopChan
-//
-// Stops an audio chanel
-void Audio_StopChan(AudioChn c) {
-	AudioChan chan;
-	chan = c;
-	if (c == NULL) {
-		return;
-	}
-	chan->loop = 0;
-	chan->wave = NULL;
-}
diff --git a/src/Audio.h b/src/Audio.h
deleted file mode 100644
index d5df313..0000000
--- a/src/Audio.h
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifndef Audio_H
-#define Audio_H
-
-/////////////////////////////
-// Audio_Init
-//
-// Initializes the game audio.
-int Audio_Init();
-
-/////////////////////////////
-// Audio_Frame
-//
-// Notify a frame update to the audio subsystem.
-void Audio_Frame();
-
-////////////////////////////////////////////////
-// AudioSnd //
-//////////////
-// Reference to a sound.
-typedef void *AudioSnd;
-
-////////////////////////////////////////////////
-// AudioChn //
-//////////////
-// Reference to a playing sound.
-typedef void *AudioChn;
-
-/////////////////////////////
-// Audio_LoadSound
-//
-// Loads a sound, giving a reference.
-AudioSnd Audio_LoadSound(char *filename);
-
-/////////////////////////////
-// Audio_PlaySound
-//
-// Loads a sound, giving a reference.
-AudioChn Audio_PlaySound(AudioSnd snd, float leftVolume, float rightVolume, int loop);
-
-/////////////////////////////
-// Audio_StopChan
-//
-// Stops an audio chanel
-void Audio_StopChan(AudioChn chan);
-
-#endif
diff --git a/src/Bucket.c b/src/Bucket.c
deleted file mode 100644
index 3bd44df..0000000
--- a/src/Bucket.c
+++ /dev/null
@@ -1,185 +0,0 @@
-// Copyright (C) 2024 Valeriano Alfonso Rodriguez (Kableado)
-
-#include "Bucket.h"
-
-#include "Util.h"
-
-#include <stdlib.h>
-#include <tgmath.h>
-
-////////////////////////////////////////////////
-// BBox
-//
-
-int BBox_Intersect(BBox bbox1, BBox bbox2) {
-	if (bbox1->x2 >= bbox2->x1 && bbox1->x1 <= bbox2->x2 && bbox1->y2 >= bbox2->y1 && bbox1->y1 <= bbox2->y2) {
-		return (1);
-	}
-	return (0);
-}
-
-////////////////////////////////////////////////
-// Bucket
-//
-
-void Bucket_Init(Bucket bucket) { bucket->count = 0; }
-
-void Bucket_AddItem(Bucket bucket, BBox item) {
-	if (bucket->count >= Max_ItemsPerBucket) {
-		Print("Bucket Overflow\n");
-		return;
-	}
-	bucket->bbox[bucket->count] = item;
-	bucket->count++;
-}
-
-void Bucket_AddItemUnique(Bucket bucket, BBox item) {
-	for (int i = 0; i < bucket->count; i++) {
-		if (bucket->bbox[i]->parent == item->parent) {
-			return;
-		}
-	}
-	Bucket_AddItem(bucket, item);
-}
-
-int Bucket_SearchItem(Bucket bucket, BBox item) {
-	for (int i = 0; i < bucket->count; i++) {
-		if (bucket->bbox[i]->parent == item->parent) {
-			return i;
-		}
-	}
-	return -1;
-}
-
-void Bucket_RemoveIndex(Bucket bucket, int index) {
-	bucket->bbox[index] = bucket->bbox[bucket->count - 1];
-	bucket->count--;
-	bucket->bbox[bucket->count] = NULL;
-}
-
-void Bucket_RemoveItem(Bucket bucket, BBox item) {
-	int index = Bucket_SearchItem(bucket, item);
-	if (index < 0) {
-		return;
-	}
-	Bucket_RemoveIndex(bucket, index);
-}
-
-////////////////////////////////////////////////
-// BucketGrid
-//
-
-void BucketGrid_Init(BucketGrid bucketGrid, int width, int height, float bucketSize, float offsetX, float offsetY) {
-	bucketGrid->width      = width;
-	bucketGrid->height     = height;
-	bucketGrid->bucketSize = bucketSize;
-	bucketGrid->offsetX    = offsetX;
-	bucketGrid->offsetY    = offsetY;
-	bucketGrid->bucket     = (TBucket *)malloc(sizeof(TBucket) * bucketGrid->width * bucketGrid->height);
-	for (int y = 0; y < bucketGrid->height; y++) {
-		for (int x = 0; x < bucketGrid->width; x++) {
-			Bucket_Init(&bucketGrid->bucket[x + y * width]);
-		}
-	}
-}
-
-void BucketGrid_DeInit(BucketGrid bucketGrid) { free(bucketGrid->bucket); }
-
-int BucketGrid_AddItem(BucketGrid bucketGrid, BBox item) {
-	const int x1Bucket = (int)floorf((item->x1 + bucketGrid->offsetX) / bucketGrid->bucketSize);
-	const int x2Bucket = (int)ceilf((item->x2 + bucketGrid->offsetX) / bucketGrid->bucketSize);
-	const int y1Bucket = (int)floorf((item->y1 + bucketGrid->offsetY) / bucketGrid->bucketSize);
-	const int y2Bucket = (int)ceilf((item->y2 + bucketGrid->offsetY) / bucketGrid->bucketSize);
-
-	int inserted = 0;
-	for (int y = y1Bucket; y <= y2Bucket; y++) {
-		for (int x = x1Bucket; x <= x2Bucket; x++) {
-			if (y < 0 || y >= bucketGrid->height || x < 0 || x >= bucketGrid->width) {
-				continue;
-			}
-			Bucket bucket = &bucketGrid->bucket[x + y * bucketGrid->width];
-			Bucket_AddItem(bucket, item);
-			inserted = 1;
-		}
-	}
-	if (inserted) {
-		item->changed = 0;
-	}
-	return inserted;
-}
-
-void BucketGrid_RemoveItem(BucketGrid bucketGrid, BBox item) {
-	const int x1Bucket = (int)floorf((item->x1 + bucketGrid->offsetX) / bucketGrid->bucketSize);
-	const int x2Bucket = (int)ceilf((item->x2 + bucketGrid->offsetX) / bucketGrid->bucketSize);
-	const int y1Bucket = (int)floorf((item->y1 + bucketGrid->offsetY) / bucketGrid->bucketSize);
-	const int y2Bucket = (int)ceilf((item->y2 + bucketGrid->offsetY) / bucketGrid->bucketSize);
-
-	for (int y = y1Bucket; y <= y2Bucket; y++) {
-		for (int x = x1Bucket; x <= x2Bucket; x++) {
-			if (y < 0 || y >= bucketGrid->height || x < 0 || x >= bucketGrid->width) {
-				continue;
-			}
-			Bucket bucket = &bucketGrid->bucket[x + y * bucketGrid->width];
-			Bucket_RemoveItem(bucket, item);
-		}
-	}
-}
-
-void BucketGrid_Query(BucketGrid bucketGrid, BBox item, Bucket resultBucket) {
-	const int x1Bucket = (int)floorf((item->x1 + bucketGrid->offsetX) / bucketGrid->bucketSize);
-	const int x2Bucket = (int)ceilf((item->x2 + bucketGrid->offsetX) / bucketGrid->bucketSize);
-	const int y1Bucket = (int)floorf((item->y1 + bucketGrid->offsetY) / bucketGrid->bucketSize);
-	const int y2Bucket = (int)ceilf((item->y2 + bucketGrid->offsetY) / bucketGrid->bucketSize);
-
-	Bucket_Init(resultBucket);
-
-	for (int y = y1Bucket; y <= y2Bucket; y++) {
-		for (int x = x1Bucket; x <= x2Bucket; x++) {
-			if (y < 0 || y >= bucketGrid->height || x < 0 || x >= bucketGrid->width) {
-				continue;
-			}
-			Bucket bucket = &bucketGrid->bucket[x + y * bucketGrid->width];
-			for (int i = 0; i < bucket->count; i++) {
-				if (BBox_Intersect(bucket->bbox[i], item)) {
-					Bucket_AddItemUnique(resultBucket, bucket->bbox[i]);
-				}
-			}
-		}
-	}
-}
-
-int BucketGrid_ProcessChanged(BucketGrid bucketGrid) {
-	TBucket bucketChanged;
-	Bucket_Init(&bucketChanged);
-
-	for (int y = 0; y < bucketGrid->height; y++) {
-		for (int x = 0; x <= bucketGrid->width; x++) {
-			Bucket bucket = &bucketGrid->bucket[x + y * bucketGrid->width];
-			int i         = 0;
-			while (i < bucket->count) {
-				if (bucket->bbox[i]->changed) {
-					if (bucketChanged.count == Max_ItemsPerBucket) {
-						return 0;
-					}
-					Bucket_AddItemUnique(&bucketChanged, bucket->bbox[i]);
-					Bucket_RemoveIndex(bucket, i);
-				} else {
-					i++;
-				}
-			}
-		}
-	}
-	for (int i = 0; i < bucketChanged.count; i++) {
-		BucketGrid_AddItem(bucketGrid, bucketChanged.bbox[i]);
-	}
-	return 1;
-}
-
-void BucketGrid_Clean(BucketGrid bucketGrid) {
-	for (int y = 0; y < bucketGrid->height; y++) {
-		for (int x = 0; x <= bucketGrid->width; x++) {
-			Bucket bucket = &bucketGrid->bucket[x + y * bucketGrid->width];
-			Bucket_Init(bucket);
-		}
-	}
-}
diff --git a/src/Bucket.h b/src/Bucket.h
deleted file mode 100644
index 85858cf..0000000
--- a/src/Bucket.h
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (C) 2024 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifndef Bucket_H
-#define Bucket_H
-
-////////////////////////////////////////////////
-// BBox
-//
-typedef struct TBBox TBBox, *BBox;
-struct TBBox {
-	float x1, x2;
-	float y1, y2;
-	void *parent;
-	int changed;
-};
-
-int BBox_Intersect(BBox bbox1, BBox bbox2);
-
-////////////////////////////////////////////////
-// Bucket
-//
-#define Max_ItemsPerBucket 200
-typedef struct TBucket TBucket, *Bucket;
-struct TBucket {
-	BBox bbox[Max_ItemsPerBucket];
-	int count;
-};
-
-void Bucket_Init(Bucket bucket);
-
-void Bucket_AddItem(Bucket bucket, BBox item);
-
-void Bucket_AddItemUnique(Bucket bucket, BBox item);
-
-int Bucket_SearchItem(Bucket bucket, BBox item);
-
-void Bucket_RemoveIndex(Bucket bucket, int index);
-
-void Bucket_RemoveItem(Bucket bucket, BBox item);
-
-////////////////////////////////////////////////
-// BucketGrid
-//
-typedef struct TBucketGrid TBucketGrid, *BucketGrid;
-struct TBucketGrid {
-	TBucket *bucket;
-	int width;
-	int height;
-	float bucketSize;
-	float offsetX;
-	float offsetY;
-};
-
-void BucketGrid_Init(BucketGrid bucketGrid, int width, int height, float bucketSize, float offsetX, float offsetY);
-
-void BucketGrid_DeInit(BucketGrid bucketGrid);
-
-int BucketGrid_AddItem(BucketGrid bucketGrid, BBox item);
-
-void BucketGrid_RemoveItem(BucketGrid bucketGrid, BBox item);
-
-void BucketGrid_Query(BucketGrid bucketGrid, BBox item, Bucket resultBucket);
-
-int BucketGrid_ProcessChanged(BucketGrid bucketGrid);
-
-void BucketGrid_Clean(BucketGrid bucketGrid);
-
-#endif
diff --git a/src/Draw.c b/src/Draw.c
deleted file mode 100644
index 8f1c2d7..0000000
--- a/src/Draw.c
+++ /dev/null
@@ -1,1260 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifdef WIN32
-
-// Windows
-#define _WIN32_WINNT 0x0501
-#include <GL/gl.h>
-#include <GL/glext.h>
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <windows.h>
-#define USE_OpenGL 1
-#define USE_OpenGLES 0
-#include <unistd.h>
-
-#else
-
-// Linux + Emscripten
-#include <math.h>
-#include <stdlib.h>
-#include <string.h>
-#define GL_GLEXT_PROTOTYPES 1
-#include <SDL_opengl.h>
-#define USE_OpenGL 0
-#define USE_OpenGLES 1
-// #define SDL_GetKeyState SDL_GetKeyboardState
-#ifdef EMSCRIPTEN
-#include <emscripten.h>
-#endif
-
-#endif
-
-#include "lodepng.c"
-#include <SDL.h>
-
-#ifndef GL_CLAMP_TO_EDGE
-#define GL_CLAMP_TO_EDGE 0x812F
-#endif
-
-#include "Audio.h"
-#include "Draw.h"
-#include "Input.h"
-#include "QuadArray2D.h"
-#include "TimeUtils.h"
-#include "Util.h"
-
-////////////////////////////////////////////////
-// DrawImage //
-///////////////
-// Image container.
-typedef struct TDrawImage TDrawImage, *DrawImage;
-struct TDrawImage {
-	uint8_t *data;
-	int x, y;
-	int w, h;
-	int flip;
-	GLuint tex;
-	int changed;
-};
-
-// Globals
-static SDL_Window *g_Window      = NULL;
-static SDL_GLContext g_GLContext = NULL;
-static SDL_Renderer *g_Renderer  = NULL;
-int g_Width;
-int g_Height;
-long long g_ProcTFrame  = 33333;
-long long g_DrawTFrame  = 16667;
-int g_FPS               = 60;
-QuadArray2D g_QuadArray = NULL;
-DrawImage g_CurrentImg  = NULL;
-float g_Color[4];
-
-#if USE_OpenGLES
-
-GLuint g_WhiteTex;
-
-GLuint Draw_CompileShader(GLenum type, const char *source) {
-	char *strType = type == GL_VERTEX_SHADER     ? "VertexShader"
-	                : type == GL_FRAGMENT_SHADER ? "fragmentShader"
-	                                             : "unknownShader";
-	GLuint shader = glCreateShader(type);
-	if (shader == 0) {
-		Print("ERROR: Creating shader of type: %s\n", strType);
-		return 0;
-	}
-
-	// load the shader source to the shader object and compile it
-	glShaderSource(shader, 1, &source, NULL);
-	glCompileShader(shader);
-
-	// check if the shader compiled successfully
-	GLint compiled;
-	glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);
-	if (!compiled) {
-		GLint infoLogLength;
-		glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLogLength);
-		GLchar strInfoLog[infoLogLength + 1];
-		glGetShaderInfoLog(shader, infoLogLength, NULL, strInfoLog);
-		Print("ERROR: Compiling shader of type: %s: %s\n", strType, strInfoLog);
-
-		glDeleteShader(shader);
-		return 0;
-	}
-
-	return shader;
-}
-
-GLuint Draw_BuildProgram(const char *vertexShaderSource, const char *fragmentShaderSource) {
-	// Compile shaders
-	GLuint vertexShader   = Draw_CompileShader(GL_VERTEX_SHADER, vertexShaderSource);
-	GLuint fragmentShader = Draw_CompileShader(GL_FRAGMENT_SHADER, fragmentShaderSource);
-	if (vertexShader == 0 || fragmentShader == 0) {
-		return 0;
-	}
-
-	// create a GL program and link it
-	GLuint programObject = glCreateProgram();
-	glAttachShader(programObject, vertexShader);
-	glAttachShader(programObject, fragmentShader);
-	glLinkProgram(programObject);
-
-	// check if the program linked successfully
-	GLint linked;
-	glGetProgramiv(programObject, GL_LINK_STATUS, &linked);
-	if (!linked) {
-		glDeleteProgram(programObject);
-		return 0;
-	}
-	return programObject;
-}
-
-GLuint g_ProgramObject;
-
-GLint g_VertPosLoc;
-GLint g_VertTexLoc;
-GLint g_VertColorLoc;
-
-GLint g_TextureLoc;
-GLint g_ProjectionMatrixLoc;
-
-GLuint g_VertexObject;
-
-#define Max_Vertices 6000
-
-#endif
-
-void Draw_ShowInfo();
-void Draw_SetMatrix(float matrix[16]);
-GLuint Draw_UploadGLTexture(int w, int h, const uint8_t *pixels);
-void Draw_DeleteGLTexture(GLuint tex);
-
-/////////////////////////////
-// Draw_Init
-//
-// Initializes the game window.
-int Draw_Init(const int width, const int height, const char *title, const int pFps, const int fps) {
-
-#ifdef WIN32
-#ifndef ATTACH_PARENT_PROCESS
-#define ATTACH_PARENT_PROCESS ((DWORD)-1)
-#endif
-	// Salida en la consola del padre
-	AttachConsole(ATTACH_PARENT_PROCESS);
-	if (GetStdHandle(STD_OUTPUT_HANDLE) != 0) {
-		fclose(stdin);
-		fclose(stdout);
-		fclose(stderr);
-		freopen("CONIN$", "r", stdin);
-		freopen("CONOUT$", "w", stdout);
-		freopen("CONOUT$", "w", stderr);
-	}
-#endif // WIN32
-
-	// Set globals
-	g_ProcTFrame = 1000000 / pFps;
-	g_DrawTFrame = 1000000 / fps;
-	g_FPS        = fps;
-	g_Width      = width;
-	g_Height     = height;
-
-	// Initialize SDL
-	if (SDL_Init(SDL_INIT_VIDEO) < 0) {
-		Print("Draw_Init: Failure initializing SDL.\n");
-		Print("\tSDL Error: %s\n", SDL_GetError());
-		return (0);
-	}
-
-	// Initialize video mode
-	g_Window =
-		SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, width, height, SDL_WINDOW_OPENGL);
-	if (g_Window == NULL) {
-		Print("Draw_Init: Failure initializing video mode.\n");
-		Print("\tSDL Error: %s\n", SDL_GetError());
-		return (0);
-	}
-
-	SDL_SetWindowAlwaysOnTop(g_Window, SDL_TRUE);
-
-	g_GLContext = SDL_GL_CreateContext(g_Window);
-
-	g_Renderer = SDL_CreateRenderer(g_Window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE);
-
-	Draw_ShowInfo();
-
-#if USE_OpenGL
-	// Set the desired state
-	glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
-	glDisable(GL_CULL_FACE);
-	glEnable(GL_TEXTURE_2D);
-	glDisable(GL_LIGHTING);
-	glDisable(GL_DEPTH_TEST);
-	glDepthMask(GL_FALSE);
-
-	// TripleBuffer swap
-	glClear(GL_COLOR_BUFFER_BIT);
-	SDL_GL_SwapWindow(g_Window);
-	glClear(GL_COLOR_BUFFER_BIT);
-	SDL_GL_SwapWindow(g_Window);
-	glClear(GL_COLOR_BUFFER_BIT);
-	SDL_GL_SwapWindow(g_Window);
-	glClear(GL_COLOR_BUFFER_BIT);
-
-	glEnableClientState(GL_COLOR_ARRAY);
-	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-	glEnableClientState(GL_VERTEX_ARRAY);
-
-#endif
-
-#if USE_OpenGLES
-
-	const char vertexShaderSource[] = "attribute vec4 aPosition;       \n"
-									  "attribute vec2 aTexCoord;       \n"
-									  "attribute vec4 aColor;          \n"
-									  "varying vec2 vTexCoord;         \n"
-									  "varying vec4 vColor;            \n"
-									  "uniform mat4 sProjectionMatrix; \n"
-									  "void main() {                   \n"
-									  "   gl_Position = aPosition *    \n"
-									  "            sProjectionMatrix;  \n"
-									  "   vTexCoord = aTexCoord;       \n"
-									  "   vColor = aColor;             \n"
-									  "}                               \n";
-
-	const char fragmentShaderSource_10[] = "precision mediump float;                                \n"
-										   "varying vec2 vTexCoord;                                 \n"
-										   "varying vec4 vColor;                                    \n"
-										   "uniform sampler2D sTexture;                             \n"
-										   "void main() {                                           \n"
-										   "  gl_FragColor = texture2D(sTexture, vTexCoord)*vColor; \n"
-										   "}                                                       \n";
-
-	const char fragmentShaderSource_20[] = "varying vec2 vTexCoord;                                 \n"
-										   "varying vec4 vColor;                                    \n"
-										   "uniform sampler2D sTexture;                             \n"
-										   "void main() {                                           \n"
-										   "  gl_FragColor = texture2D(sTexture, vTexCoord)*vColor; \n"
-										   "}                                                       \n";
-
-	g_ProgramObject = Draw_BuildProgram(vertexShaderSource, fragmentShaderSource_20);
-	if (g_ProgramObject == 0) {
-		g_ProgramObject = Draw_BuildProgram(vertexShaderSource, fragmentShaderSource_10);
-	}
-	glUseProgram(g_ProgramObject);
-
-	g_VertPosLoc   = glGetAttribLocation(g_ProgramObject, "aPosition");
-	g_VertTexLoc   = glGetAttribLocation(g_ProgramObject, "aTexCoord");
-	g_VertColorLoc = glGetAttribLocation(g_ProgramObject, "aColor");
-
-	g_TextureLoc          = glGetUniformLocation(g_ProgramObject, "sTexture");
-	g_ProjectionMatrixLoc = glGetUniformLocation(g_ProgramObject, "sProjectionMatrix");
-
-	glUniform1i(g_TextureLoc, 0);
-
-	glGenBuffers(1, &g_VertexObject);
-	glBindBuffer(GL_ARRAY_BUFFER, g_VertexObject);
-	glBufferData(GL_ARRAY_BUFFER, Vertex2D_Length * sizeof(float) * Max_Vertices, NULL, GL_DYNAMIC_DRAW);
-
-	glBindBuffer(GL_ARRAY_BUFFER, g_VertexObject);
-
-	glVertexAttribPointer(
-		g_VertPosLoc, 2, GL_FLOAT, GL_FALSE, Vertex2D_Length * sizeof(float), (void *)(0 * sizeof(float)));
-	glVertexAttribPointer(
-		g_VertTexLoc, 2, GL_FLOAT, GL_FALSE, Vertex2D_Length * sizeof(float), (void *)(2 * sizeof(float)));
-	glVertexAttribPointer(
-		g_VertColorLoc, 4, GL_FLOAT, GL_FALSE, Vertex2D_Length * sizeof(float), (void *)(4 * sizeof(float)));
-
-	glEnableVertexAttribArray(g_VertPosLoc);
-	glEnableVertexAttribArray(g_VertTexLoc);
-	glEnableVertexAttribArray(g_VertColorLoc);
-
-	uint8_t whiteTexData[4] = {255, 255, 255, 255};
-	g_WhiteTex              = Draw_UploadGLTexture(1, 1, whiteTexData);
-
-#endif
-
-	// Set the projection (2D)
-	glViewport(0, 0, g_Width, g_Height);
-	float projectionMatrix[16] = {1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1};
-	projectionMatrix[0]        = (2.0f / (float)g_Width);
-	projectionMatrix[5]        = -(2.0f / (float)g_Height);
-	projectionMatrix[10]       = -0.001f;
-	projectionMatrix[3]        = -1.0f;
-	projectionMatrix[7]        = 1.0f;
-	Draw_SetMatrix(projectionMatrix);
-
-	// Enable Alpha blending
-	glEnable(GL_BLEND);
-	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
-	// Initialize the triangle array
-	g_QuadArray = QuadArray2D_Create(400);
-
-	Draw_SetColor(1.0f, 1.0f, 1.0f, 1.0f);
-
-	return (1);
-}
-
-/////////////////////////////
-// Draw_ShowInfo
-//
-// Show device information
-void Draw_ShowInfo() {
-	Print("\n*********************************\n");
-	Print("*** Draw Info\n");
-	char *str = (char *)glGetString(GL_VENDOR);
-	Print(" Vendor: %s\n", str);
-	str = (char *)glGetString(GL_RENDERER);
-	Print(" Renderer: %s\n", str);
-	str = (char *)glGetString(GL_VERSION);
-	Print(" Version: %s\n", str);
-	str = (char *)glGetString(GL_SHADING_LANGUAGE_VERSION);
-	Print(" Shader Version: %s\n", str);
-	Print("*********************************\n");
-}
-
-/////////////////////////////
-// Draw_SetMatrix
-//
-// Sets the render matrix
-void Draw_SetMatrix(float matrix[16]) {
-#if USE_OpenGL
-	float tempMatrix[16] = {
-		matrix[0],
-		matrix[4],
-		matrix[8],
-		matrix[12],
-		matrix[1],
-		matrix[5],
-		matrix[9],
-		matrix[13],
-		matrix[2],
-		matrix[6],
-		matrix[10],
-		matrix[14],
-		matrix[3],
-		matrix[7],
-		matrix[11],
-		matrix[15]};
-	glLoadMatrixf(tempMatrix);
-#endif
-#if USE_OpenGLES
-	glUniformMatrix4fv(g_ProjectionMatrixLoc, 1, GL_FALSE, matrix);
-#endif
-}
-
-/////////////////////////////
-// Draw_UploadGLTexture
-//
-// Uploads a OpenGL texture.
-GLuint Draw_UploadGLTexture(int w, const int h, const uint8_t *pixels) {
-	GLuint tex;
-
-	// Generate OpenGL texture
-	glGenTextures(1, &tex);
-	glBindTexture(GL_TEXTURE_2D, tex);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-
-	// Load OpenGL texture
-	glBindTexture(GL_TEXTURE_2D, tex);
-#if USE_OpenGL
-	glPixelStorei(GL_UNPACK_ROW_LENGTH, w);
-#endif
-	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
-
-	return (tex);
-}
-
-/////////////////////////////
-// Draw_DeleteGLTexture
-//
-//
-void Draw_DeleteGLTexture(GLuint tex) { glDeleteTextures(1, &tex); }
-
-/////////////////////////////
-// Draw_Flush
-//
-// Performs all the queued draw actions.
-void Draw_Flush() {
-	if (g_CurrentImg == NULL || g_QuadArray->nVertex <= 0) {
-		return;
-	}
-	if (g_CurrentImg->tex != -1 && g_CurrentImg->changed) {
-		Draw_DeleteGLTexture(g_CurrentImg->tex);
-		g_CurrentImg->tex     = -1;
-		g_CurrentImg->changed = 0;
-	}
-	if (g_CurrentImg->tex == -1) {
-		g_CurrentImg->tex = Draw_UploadGLTexture(g_CurrentImg->w, g_CurrentImg->h, g_CurrentImg->data);
-		g_CurrentImg->changed = 0;
-	}
-
-#if USE_OpenGL
-	// Draw the quad array
-	glBindTexture(GL_TEXTURE_2D, g_CurrentImg->tex);
-	glColorPointer(4, GL_FLOAT, Vertex2D_Length * sizeof(float), (GLvoid *)(g_QuadArray->vertexData + 4));
-	glTexCoordPointer(2, GL_FLOAT, Vertex2D_Length * sizeof(float), (GLvoid *)(g_QuadArray->vertexData + 2));
-	glVertexPointer(2, GL_FLOAT, Vertex2D_Length * sizeof(float), (GLvoid *)(g_QuadArray->vertexData));
-	glDrawArrays(GL_TRIANGLES, 0, g_QuadArray->nVertex);
-
-#else
-
-	// Draw the quad array
-	glBindTexture(GL_TEXTURE_2D, g_CurrentImg->tex);
-	glBufferSubData(
-		GL_ARRAY_BUFFER, 0, Vertex2D_Length * sizeof(float) * g_QuadArray->nVertex, g_QuadArray->vertexData);
-	glDrawArrays(GL_TRIANGLES, 0, g_QuadArray->nVertex);
-
-#endif
-
-	// Empty it
-	QuadArray2D_Clean(g_QuadArray);
-}
-
-/////////////////////////////
-// Draw_Clean
-//
-// Cleans the game window.
-void Draw_Clean(uint8_t r, uint8_t g, uint8_t b) {
-#if USE_OpenGL
-	glClearColor(r / 255.0f, g / 255.0f, b / 255.0f, 1.0f);
-	glClear(GL_COLOR_BUFFER_BIT);
-#else
-	Draw_Flush();
-	float fr            = (float)r / 255.0f;
-	float fg            = (float)g / 255.0f;
-	float fb            = (float)b / 255.0f;
-	float fWidth        = (float)g_Width;
-	float fHeight       = (float)g_Height;
-	GLfloat vVertices[] = {
-		0.0f,   0.0f,              // Position 0
-		0.0f,   0.0f,              // TexCoord 0
-		fr,     fg,      fb, 1.0f, // Color
-
-		0.0f,   fHeight,           // Position 1
-		0.0f,   1.0f,              // TexCoord 1
-		fr,     fg,      fb, 1.0f, // Color
-
-		fWidth, fHeight,           // Position 2
-		1.0f,   1.0f,              // TexCoord 2
-		fr,     fg,      fb, 1.0f, // Color
-
-		fWidth, fHeight,           // Position 2
-		1.0f,   1.0f,              // TexCoord 2
-		fr,     fg,      fb, 1.0f, // Color
-
-		fWidth, 0.0f,              // Position 3
-		1.0f,   0.0f,              // TexCoord 3
-		fr,     fg,      fb, 1.0f, // Color
-
-		0.0f,   0.0f,              // Position 0
-		0.0f,   0.0f,              // TexCoord 0
-		fr,     fg,      fb, 1.0f, // Color
-	};
-	glBindTexture(GL_TEXTURE_2D, g_WhiteTex);
-	glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vVertices), vVertices);
-	glDrawArrays(GL_TRIANGLES, 0, 6);
-#endif
-}
-
-/////////////////////////////
-// Draw_LoopIteration
-//
-// One iteration of the loop updating the game window.
-void (*g_ProcFunc)(void *data)          = NULL;
-void (*g_DrawFunc)(void *data, float f) = NULL;
-void *g_Data                            = NULL;
-int g_DrawLooping                       = 0;
-int g_DrawExitOverride                  = 0;
-long long g_AccumulatedTime;
-int Draw_LoopIteration() {
-	SDL_Event event;
-
-// Process Events
-#ifdef EMSCRIPTEN
-	while (SDL_PollEvent(&event)) {
-		if (event.type == SDL_QUIT) {
-			Input_SetKey(InputKey_Exit, 1);
-		}
-		if (event.type == SDL_KEYDOWN) {
-			if (event.key.keysym.sym == SDL_SCANCODE_ESCAPE) {
-				Input_SetKey(InputKey_Exit, 1);
-			}
-		}
-		if (event.type == SDL_MOUSEMOTION) {
-			Input_SetPointerPosition(event.motion.x / (float)g_Width, event.motion.y / (float)g_Height);
-		}
-		if (event.type == SDL_MOUSEBUTTONDOWN) {
-			Input_SetPointerPosition(event.button.x / (float)g_Width, event.button.y / (float)g_Height);
-			Input_SetPointerDown(1);
-		}
-		if (event.type == SDL_FINGERMOTION) {
-			Input_SetPointerPosition(event.tfinger.x, event.tfinger.y);
-		}
-		if (event.type == SDL_FINGERDOWN) {
-			Input_SetPointerPosition(event.tfinger.x, event.tfinger.y);
-			Input_SetPointerDown(1);
-		}
-		if (event.type == SDL_MOUSEBUTTONUP) {
-			Input_SetPointerPosition(event.button.x / (float)g_Width, event.button.y / (float)g_Height);
-			Input_SetPointerDown(0);
-		}
-		if (event.type == SDL_FINGERUP) {
-			Input_SetPointerPosition(event.tfinger.x, event.tfinger.y);
-			Input_SetPointerDown(0);
-		}
-	}
-#else
-	while (SDL_PollEvent(&event)) {
-		if (event.type == SDL_QUIT) {
-			Input_SetKey(InputKey_Exit, 1);
-			if (!g_DrawExitOverride) {
-				g_DrawLooping = 0;
-			}
-		}
-		if (event.type == SDL_KEYDOWN) {
-			if (event.key.keysym.scancode == SDL_SCANCODE_ESCAPE) {
-				Input_SetKey(InputKey_Exit, 1);
-				if (!g_DrawExitOverride) {
-					g_DrawLooping = 0;
-				}
-			}
-		}
-		if (event.type == SDL_MOUSEMOTION) {
-			Input_SetPointerPosition((float)event.motion.x / (float)g_Width, (float)event.motion.y / (float)g_Height);
-		}
-		if (event.type == SDL_MOUSEBUTTONDOWN) {
-			Input_SetPointerPosition((float)event.button.x / (float)g_Width, (float)event.button.y / (float)g_Height);
-			Input_SetPointerDown(1);
-		}
-		if (event.type == SDL_MOUSEBUTTONUP) {
-			Input_SetPointerPosition((float)event.button.x / (float)g_Width, (float)event.button.y / (float)g_Height);
-			Input_SetPointerDown(0);
-		}
-	}
-#endif
-
-	// Process
-	if (g_ProcFunc) {
-		if (g_AccumulatedTime > 100000) {
-			g_AccumulatedTime = 100000;
-		}
-		while (g_AccumulatedTime >= g_ProcTFrame && g_DrawLooping) {
-			Input_Frame();
-			g_ProcFunc(g_Data);
-			g_AccumulatedTime -= g_ProcTFrame;
-			Input_PostFrame();
-		}
-	}
-
-	// Sound Frame
-	Audio_Frame();
-
-	// Draw
-	SDL_GL_SwapWindow(g_Window);
-	if (g_DrawFunc) {
-		g_DrawFunc(g_Data, (float)g_AccumulatedTime / (float)g_ProcTFrame);
-		Draw_Flush();
-	}
-
-	return g_DrawLooping;
-}
-
-#ifdef EMSCRIPTEN
-long long _procTime1;
-long long _procTime2;
-void Draw_LoopIterationAux() {
-	Draw_LoopIteration();
-
-	// Update time
-	_procTime2 = Time_GetTime();
-	g_AccumulatedTime += _procTime2 - _procTime1;
-	_procTime1 = _procTime2;
-}
-#endif
-
-/////////////////////////////
-// Draw_Loop
-//
-// Loops updating the game window.
-void Draw_Loop(void (*proc)(void *data), void (*draw)(void *data, float f), void *data) {
-
-	g_ProcFunc = proc;
-	g_DrawFunc = draw;
-	g_Data     = data;
-	if (g_DrawLooping) {
-		return;
-	}
-	g_DrawLooping = 1;
-#ifndef EMSCRIPTEN
-	long long drawTime1;
-	g_AccumulatedTime   = g_ProcTFrame;
-	long long procTime1 = drawTime1 = Time_GetTime();
-	while (Draw_LoopIteration()) {
-
-		// Wait to round g_DrawTFrame
-		long long drawTime2 = Time_GetTime();
-		Time_Pause(g_DrawTFrame - (drawTime2 - drawTime1));
-		drawTime2 = Time_GetTime();
-		drawTime1 = drawTime2;
-
-		// Update time
-		long long procTime2 = Time_GetTime();
-		g_AccumulatedTime += procTime2 - procTime1;
-		procTime1 = procTime2;
-	}
-#else
-	g_AccumulatedTime = g_ProcTFrame;
-	_procTime1        = Time_GetTime();
-	if (g_FPS <= 50) {
-		emscripten_set_main_loop(Draw_LoopIterationAux, g_FPS, 1);
-	} else {
-		emscripten_set_main_loop(Draw_LoopIterationAux, 0, 1);
-	}
-#endif
-}
-
-/////////////////////////////
-// Draw_BreakLoop
-//
-// Breaks the drawing loop
-void Draw_BreakLoop() {
-#ifndef EMSCRIPTEN
-	g_DrawLooping = 0;
-#endif
-}
-
-/////////////////////////////
-// Draw_OverrideExit
-//
-// Overrides the default exit mechanism
-void Draw_OverrideExit(int override) { g_DrawExitOverride = override; }
-
-/////////////////////////////
-// Draw_CreateImage
-//
-DrawImg Draw_CreateImage(int w, int h) {
-
-	// Create the image container
-	DrawImage image = malloc(sizeof(TDrawImage));
-	image->data     = malloc(w * h * 4);
-	image->w        = w;
-	image->h        = h;
-	image->x        = -(image->w / 2);
-	image->y        = -(image->h / 2);
-	image->flip     = 0;
-	image->tex      = -1;
-	image->changed  = 1;
-
-	return ((DrawImg)image);
-}
-
-/////////////////////////////
-// Draw_LoadImage
-//
-// Loads an image, giving a reference.
-DrawImg Draw_LoadImage(char *filename) {
-
-	// Try loading PNG images
-	if (EndsWith(filename, ".png") || EndsWith(filename, ".PNG")) {
-		DrawImage image = malloc(sizeof(TDrawImage));
-		const unsigned error =
-			lodepng_decode32_file(&image->data, (unsigned *)&image->w, (unsigned *)&image->h, filename);
-		if (error) {
-			Print("Draw_LoadImage: PNG decoder error %u: %s on file %s\n", error, lodepng_error_text(error), filename);
-			return (NULL);
-		}
-		image->x       = -(image->w / 2);
-		image->y       = -(image->h / 2);
-		image->flip    = 0;
-		image->tex     = -1;
-		image->changed = 1;
-		return (DrawImg)image;
-	}
-
-	Print("Draw_LoadImage: Image type not supported: %s\n", filename);
-	return (NULL);
-}
-
-/////////////////////////////
-// Draw_GetSize
-//
-// Gets the image size.
-void Draw_GetSize(DrawImg img, int *w, int *h) {
-	DrawImage image = img;
-
-	// Gets the image size
-	*w = image->w;
-	*h = image->h;
-}
-
-/////////////////////////////
-// Draw_SetOffset
-// Draw_GetOffset
-//
-// Sets and Gets the image offset.
-void Draw_SetOffset(DrawImg img, int x, int y) {
-	DrawImage image = img;
-
-	// Sets the image offset
-	image->x = x;
-	image->y = y;
-}
-void Draw_GetOffset(DrawImg img, int *x, int *y) {
-	DrawImage image = img;
-
-	// Gets the image offset
-	*x = image->x;
-	*y = image->y;
-}
-
-/////////////////////////////
-// Draw_SetFlip
-// Draw_GetFlip
-//
-//
-void Draw_SetFlip(DrawImg img, int flip) {
-	DrawImage image = img;
-	image->flip     = flip;
-}
-int Draw_GetFlip(DrawImg img) {
-	DrawImage image = img;
-	return image->flip;
-}
-
-/////////////////////////////
-// Draw_SetPixel
-// Draw_AddPixel
-//
-//
-DrawImg Draw_SetPixel(DrawImg img, const int x, const int y, const ColorRgba color) {
-	DrawImage image = img;
-	if (x < 0 || y < 0) {
-		return img;
-	}
-	if (x >= image->w || y >= image->h) {
-		return img;
-	}
-	const int offset        = (x + y * image->w) * 4;
-	image->data[offset + 0] = color[0];
-	image->data[offset + 1] = color[1];
-	image->data[offset + 2] = color[2];
-	image->data[offset + 3] = color[3];
-	image->changed          = 1;
-	return img;
-}
-DrawImg Draw_AddPixel(DrawImg img, const int x, const int y, const ColorRgba color, const float factor) {
-	const float alpha = factor * ((float)color[3] / 255);
-	if (alpha <= 0) {
-		return img;
-	}
-	if (alpha >= 255) {
-		Draw_SetPixel(img, x, y, color);
-		return img;
-	}
-	DrawImage image = img;
-	if (x < 0 || y < 0) {
-		return img;
-	}
-	if (x >= image->w || y >= image->h) {
-		return img;
-	}
-
-	const uint8_t a = (uint8_t)(alpha * 255);
-	const uint8_t r = (int)((float)color[0] * alpha);
-	const uint8_t g = (int)((float)color[1] * alpha);
-	const uint8_t b = (int)((float)color[2] * alpha);
-
-	const int offset        = (x + y * image->w) * 4;
-	image->data[offset + 0] = SumClamp_uint8(image->data[offset + 0] * (1 - alpha), r);
-	image->data[offset + 1] = SumClamp_uint8(image->data[offset + 1] * (1 - alpha), g);
-	image->data[offset + 2] = SumClamp_uint8(image->data[offset + 2] * (1 - alpha), b);
-	image->data[offset + 3] = SumClamp_uint8(image->data[offset + 3], a);
-	image->changed          = 1;
-	return img;
-}
-
-/////////////////////////////
-// Draw_DrawBoxFilled
-//
-//
-DrawImg Draw_DrawBoxFilled(DrawImg img, const int x1, const int y1, const int x2, const int y2, const ColorRgba color) {
-	for (int y = y1; y < y2; y++) {
-		for (int x = x1; x < x2; x++) {
-			Draw_SetPixel(img, x, y, color);
-		}
-	}
-	return img;
-}
-
-/////////////////////////////
-// Draw_DrawBox
-//
-//
-DrawImg Draw_DrawBox(DrawImg img, const int x1, const int y1, const int x2, const int y2, const ColorRgba color) {
-	for (int x = x1; x < x2; x++) {
-		Draw_SetPixel(img, x, y1, color);
-		Draw_SetPixel(img, x, y2 - 1, color);
-	}
-	for (int y = y1 + 1; y < y2 - 1; y++) {
-		Draw_SetPixel(img, x1, y, color);
-		Draw_SetPixel(img, x2 - 1, y, color);
-	}
-	return (img);
-}
-
-/////////////////////////////
-// Draw_DrawCircle
-//
-//
-DrawImg Draw_DrawCircle(DrawImg img, int centerX, int centerY, int radius, int innerRadius, const ColorRgba color) {
-	for (int y = -centerY; y < centerY; y++) {
-		for (int x = -centerX; x < centerX; x++) {
-			const float dist = sqrtf((float)(x * x + y * y));
-			if (dist <= (float)radius) {
-				const float delta = (float)radius - dist;
-				if (delta > 1.0f) {
-					// In
-					const float innerDelta = (float)innerRadius - dist;
-					if (innerDelta > 1.0f) {
-						// In
-					} else if (innerDelta <= 1.0f && innerDelta >= 0.0f) {
-						// Edge
-						Draw_AddPixel(img, centerX + x, centerY + y, color, 1.0f - innerDelta);
-					} else {
-						// Out
-						Draw_AddPixel(img, centerX + x, centerY + y, color, 1.0f);
-					}
-				} else if (delta <= 1.0f && delta >= 0.0f) {
-					// Edge
-					Draw_AddPixel(img, centerX + x, centerY + y, color, delta);
-				} else {
-					// Out
-				}
-			}
-		}
-	}
-	return img;
-}
-
-/////////////////////////////
-// Draw_DrawImg
-//
-// Draws an image.
-void Draw_DrawImg(DrawImg img, int x, int y, const float scale[2]) {
-	DrawImage image = img;
-	float u1 = 0.0f, u2 = 1.0f;
-	float v1 = 0.0f, v2 = 1.0f;
-
-	// Prepare screen coordinates
-	const float x1 = (float)x + ((float)image->x * scale[0]);
-	const float y1 = (float)y + ((float)image->y * scale[1]);
-	const float x2 = x1 + ((float)image->w * scale[0]);
-	const float y2 = y1 + ((float)image->h * scale[1]);
-
-	// Apply flipping
-	if (image->flip & 1) {
-		const float t = u1;
-		u1            = u2;
-		u2            = t;
-	}
-	if (image->flip & 2) {
-		const float t = v1;
-		v1            = v2;
-		v2            = t;
-	}
-
-	// Draw a quad
-	if (g_CurrentImg != image) {
-		Draw_Flush();
-		g_CurrentImg = image;
-	}
-	QuadArray2D_AddQuad(g_QuadArray, x1, y1, u1, v1, x2, y2, u2, v2, g_Color);
-}
-
-/////////////////////////////
-// Draw_DrawImgResized
-//
-// Draws an image, resizing.
-void Draw_DrawImgResized(DrawImg img, int x, int y, float w, float h) {
-	DrawImage image = img;
-	float u1 = 0.0f, u2 = 1.0f;
-	float v1 = 0.0f, v2 = 1.0f;
-
-	// Prepare
-	const float x1 = (float)x + (float)image->x;
-	const float y1 = (float)y + (float)image->y;
-	const float x2 = x1 + w;
-	const float y2 = y1 + h;
-
-	// Apply flipping
-	if (image->flip & 1) {
-		const float t = u1;
-		u1            = u2;
-		u2            = t;
-	}
-	if (image->flip & 2) {
-		const float t = v1;
-		v1            = v2;
-		v2            = t;
-	}
-
-	// Draw a quad
-	if (g_CurrentImg != image) {
-		Draw_Flush();
-		g_CurrentImg = image;
-	}
-	QuadArray2D_AddQuad(g_QuadArray, x1, y1, u1, v1, x2, y2, u2, v2, g_Color);
-}
-
-/////////////////////////////
-// Draw_DrawImgPart
-//
-// Draws an image part.
-void Draw_DrawImgPart(DrawImg img, int x, int y, int w, int h, int i, int j, const float scale[2]) {
-	DrawImage image = img;
-
-	// Prepare screen coordinates
-	const float x1 = (float)x + ((float)image->x * scale[0]);
-	const float y1 = (float)y + ((float)image->y * scale[1]);
-	const float x2 = x1 + ((float)w * scale[0]);
-	const float y2 = y1 + ((float)h * scale[1]);
-
-	// Prepare image coordinates
-	const float us = 1.0f / (float)image->w;
-	float u1       = us * (float)(i * w);
-	float u2       = u1 + (us * (float)w);
-	const float vs = 1.0f / (float)image->h;
-	float v1       = vs * (float)(j * h);
-	float v2       = v1 + (vs * (float)h);
-
-	// Apply flipping
-	if (image->flip & 1) {
-		const float t = u1;
-		u1            = u2;
-		u2            = t;
-	}
-	if (image->flip & 2) {
-		const float t = v1;
-		v1            = v2;
-		v2            = t;
-	}
-
-	// Draw a quad
-	if (g_CurrentImg != image) {
-		Draw_Flush();
-		g_CurrentImg = image;
-	}
-	QuadArray2D_AddQuad(g_QuadArray, x1, y1, u1, v1, x2, y2, u2, v2, g_Color);
-}
-
-/////////////////////////////
-// Draw_DrawImgPartHoriz
-//
-// Draws an image part horizontally.
-void Draw_DrawImgPartHoriz(DrawImg img, int x, int y, int w, int i, const float scale[2]) {
-	DrawImage image = img;
-	float v1 = 0.0f, v2 = 1.0f;
-
-	// Prepare screen coordinates
-	const float x1 = (float)x + ((float)image->x * scale[0]);
-	const float y1 = (float)y + ((float)image->y * scale[1]);
-	const float x2 = x1 + ((float)w * scale[0]);
-	const float y2 = y1 + ((float)image->h * scale[1]);
-
-	// Prepare image coordinates
-	const float us = 1.0f / (float)image->w;
-	float u1       = us * (float)(i * w);
-	float u2       = u1 + (us * (float)w);
-
-	// Apply flipping
-	if (image->flip & 1) {
-		const float t = u1;
-		u1            = u2;
-		u2            = t;
-	}
-	if (image->flip & 2) {
-		const float t = v1;
-		v1            = v2;
-		v2            = t;
-	}
-
-	// Draw a quad
-	if (g_CurrentImg != image) {
-		Draw_Flush();
-		g_CurrentImg = image;
-	}
-	QuadArray2D_AddQuad(g_QuadArray, x1, y1, u1, v1, x2, y2, u2, v2, g_Color);
-}
-
-/////////////////////////////
-// Draw_ImgParallax
-//
-//
-void Draw_ImgParallax(
-	DrawImg img, int imgSize[2], const int imgOffset[2], const float parallaxFactor[2], const int gamePos[2],
-	const int gameSize[2]) {
-	int parallaxPos[2];
-	int multiply[2];
-
-	parallaxPos[0] = (int)((float)gamePos[0] * parallaxFactor[0]) + imgOffset[0];
-	parallaxPos[1] = (int)((float)gamePos[1] * parallaxFactor[1]) + imgOffset[1];
-
-	multiply[0] = (int)floorf((float)parallaxPos[0] / (float)imgSize[0]);
-	if (parallaxPos[0] < 0) {
-		multiply[0]--;
-	}
-	multiply[1] = (int)floorf((float)parallaxPos[1] / (float)imgSize[1]);
-	if (parallaxPos[1] < 0) {
-		multiply[1]--;
-	}
-
-	int y = (multiply[1] * imgSize[1]) - parallaxPos[1];
-	while (y < gameSize[1]) {
-		int x = (multiply[0] * imgSize[0]) - parallaxPos[0];
-		while (x < gameSize[0]) {
-			Draw_DrawImgResized(img, x, y, (float)imgSize[0], (float)imgSize[1]);
-			x += imgSize[0];
-		}
-		y += imgSize[1];
-	}
-}
-
-/////////////////////////////
-// Draw_SetColor
-//
-//
-void Draw_SetColor(float r, float g, float b, float a) {
-	g_Color[0] = r;
-	g_Color[1] = g;
-	g_Color[2] = b;
-	g_Color[3] = a;
-}
-
-////////////////////////////////////////////////
-// DrawFnt //
-/////////////
-// Reference to a Font.
-typedef struct {
-	DrawImage img;
-	int w, h;
-	int min, max;
-	float scale[2];
-} DrawFont;
-
-/////////////////////////////
-// Draw_DefaultImage
-//
-// Creates an image with the default font.
-#include "FontData.h"
-DrawImage Draw_DefaultFontImage(const ColorRgba color) {
-
-	// Create the image and colors
-	DrawImage img = Draw_CreateImage(8 * 256, 8);
-	Draw_SetOffset(img, 0, 0);
-
-	// Draw the font
-	for (int c = 0; c < 256; c++) {
-		for (int y = 0; y < 8; y++) {
-			for (int x = 0; x < 8; x++) {
-				const int offset      = ((c * 8 + x) + (8 * 256 * y)) * 4;
-				img->data[offset + 0] = color[0];
-				img->data[offset + 1] = color[1];
-				img->data[offset + 2] = color[2];
-				if (((fontData_8x8[c * 8 + y] >> (7 - x)) & 0x01) == 1) {
-					img->data[offset + 3] = color[3];
-				} else {
-					img->data[offset + 3] = 0x00;
-				}
-			}
-		}
-	}
-	img->changed = 1;
-
-	return (img);
-}
-
-/////////////////////////////
-// Draw_DefaultFont
-//
-// Creates the default font.
-DrawFnt Draw_DefaultFont(ColorRgba color) {
-
-	// Create the default font
-	DrawFont *font = malloc(sizeof(DrawFont));
-	font->img      = Draw_DefaultFontImage(color);
-	font->w        = 8;
-	font->h        = 8;
-	font->min      = 0;
-	font->max      = 256;
-	font->scale[0] = 1.0f;
-	font->scale[1] = 1.0f;
-
-	return ((DrawFnt)font);
-}
-
-/////////////////////////////
-// Draw_LoadFont
-//
-// Load a font from a file.
-DrawFnt Draw_LoadFont(char *fichero, int min, int max) {
-
-	// Create the font form the image
-	DrawFont *font = malloc(sizeof(DrawFont));
-	font->img      = Draw_LoadImage(fichero);
-	font->w        = font->img->w / (max - min);
-	font->h        = font->img->h;
-	font->min      = min;
-	font->max      = max;
-	font->scale[0] = 1.0f;
-	font->scale[1] = 1.0f;
-
-	return ((DrawFnt)font);
-}
-
-/////////////////////////////
-// Draw_FontScale
-//
-void Draw_FontScale(DrawFnt f, const float scale[2]) {
-	DrawFont *font = f;
-
-	font->scale[0] = scale[0];
-	font->scale[1] = scale[1];
-}
-
-/////////////////////////////
-// Draw_DrawText
-//
-// Draws text using a font.
-void Draw_DrawText(DrawFnt f, const char *text, int x, int y) {
-	DrawFont *font = f;
-
-	// Iterate the string
-	const char *ptr = text;
-	while (*ptr) {
-		if ((*ptr) < font->max) {
-			Draw_DrawImgPartHoriz(font->img, x, y, font->w, (*ptr) - font->min, font->scale);
-		}
-		x += (int)((float)font->w * font->scale[0]);
-		ptr++;
-	}
-}
-
-/////////////////////////////
-// Draw_SaveRGBAToBMP
-//
-//
-void Draw_SaveRGBAToBMP(const char *filename, const uint8_t *data, const int width, const int height) {
-
-	// Create the surface
-	SDL_Surface *surf    = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 32, 0, 0, 0, 0);
-	surf->format->Amask  = 0xFF000000;
-	surf->format->Ashift = 24;
-	// SDL_SetAlpha(surf, GL_SRC_ALPHA, 255);
-	SDL_LockSurface(surf);
-	memcpy(surf->pixels, data, width * height * 4);
-	SDL_UnlockSurface(surf);
-
-	// Swap RGB to BGR
-	Uint32 *ptr           = (Uint32 *)surf->pixels;
-	const Uint32 *ptr_end = ptr + (surf->w * surf->h);
-	while (ptr < ptr_end) {
-		uint8_t *pixel     = (uint8_t *)ptr;
-		const uint8_t temp = pixel[2];
-		pixel[2]           = pixel[0];
-		pixel[0]           = temp;
-		ptr++;
-	}
-
-	// Save the image
-	SDL_SaveBMP(surf, filename);
-
-	// Cleanup
-	SDL_FreeSurface(surf);
-}
-
-/////////////////////////////
-// Draw_SaveRGBAToPNG
-//
-//
-void Draw_SaveRGBAToPNG(const char *filename, const uint8_t *data, const int width, const int height) {
-	unsigned error = lodepng_encode32_file(filename, data, width, height);
-	if (error) {
-		Print("Draw_SaveRGBAToPNG: Error %u: %s\n", error, lodepng_error_text(error));
-	}
-}
-
-/////////////////////////////
-// Draw_SaveScreenshot
-//
-//
-void Draw_SaveScreenshot(char *filename) {
-#if USE_OpenGL
-	uint8_t *pixelData;
-	uint8_t *image_line;
-	int i, half_height, line_size;
-
-	pixelData = malloc(g_Width * g_Height * 4);
-
-	glReadPixels(0, 0, g_Width, g_Height, GL_RGBA, GL_UNSIGNED_BYTE, pixelData);
-
-	// Flip the image data
-	line_size   = g_Width * 4;
-	half_height = g_Height / 2;
-	image_line  = malloc(line_size);
-	for (i = 0; i < half_height; i++) {
-		memcpy(image_line, pixelData + i * line_size, line_size);
-		memcpy(pixelData + i * line_size, pixelData + (g_Height - (i + 1)) * line_size, line_size);
-		memcpy(pixelData + (g_Height - (i + 1)) * line_size, image_line, line_size);
-	}
-
-	// Save the image
-	if (EndsWith(filename, ".bmp") || EndsWith(filename, ".BMP")) {
-		Draw_SaveRGBAToBMP(filename, pixelData, g_Width, g_Height);
-	} else if (EndsWith(filename, ".png") || EndsWith(filename, ".PNG")) {
-		Draw_SaveRGBAToPNG(filename, pixelData, g_Width, g_Height);
-	}
-
-	// Cleanup
-	free(pixelData);
-#endif
-}
-
-/////////////////////////////
-// Draw_ShowCursor
-//
-//
-void Draw_ShowCursor(int showCursor) {
-	if (showCursor) {
-		SDL_ShowCursor(31);
-	} else {
-		SDL_ShowCursor(0);
-	}
-}
diff --git a/src/Draw.h b/src/Draw.h
deleted file mode 100644
index a89adf7..0000000
--- a/src/Draw.h
+++ /dev/null
@@ -1,201 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifndef Draw_H
-#define Draw_H
-
-#include <stdint.h>
-
-/////////////////////////////
-// Draw_Init
-//
-// Initializes the game window.
-int Draw_Init(int width, int height, const char *title, int pFps, int fps);
-
-/////////////////////////////
-// Draw_Clean
-//
-// Cleans the game window.
-void Draw_Clean(uint8_t r, uint8_t g, uint8_t b);
-
-/////////////////////////////
-// Draw_Loop
-//
-// Loops updating the game window.
-void Draw_Loop(void (*proc)(void *data), void (*draw)(void *data, float f), void *data);
-
-/////////////////////////////
-// Draw_BreakLoop
-//
-// Breaks the drawing loop
-void Draw_BreakLoop();
-
-/////////////////////////////
-// Draw_OverrideExit
-//
-// Overrides the default exit mechanism
-void Draw_OverrideExit(int override);
-
-/////////////////////////////
-// Draw_Flush
-//
-// Performs all the queued draw actions.
-void Draw_Flush();
-
-////////////////////////////////////////////////
-// DrawImg //
-/////////////
-// Reference to an image.
-typedef void *DrawImg;
-typedef uint8_t ColorRgba[4];
-
-/////////////////////////////
-// Draw_CreateImage
-//
-DrawImg Draw_CreateImage(int w, int h);
-
-/////////////////////////////
-// Draw_LoadImage
-//
-// Loads an image, giving a reference.
-DrawImg Draw_LoadImage(char *filename);
-
-/////////////////////////////
-// Draw_GetSize
-//
-// Gets the image size.
-void Draw_GetSize(DrawImg img, int *w, int *h);
-
-/////////////////////////////
-// Draw_SetOffset
-// Draw_GetOffset
-//
-// Sets and Gets the image offset.
-void Draw_SetOffset(DrawImg img, int x, int y);
-void Draw_GetOffset(DrawImg img, int *x, int *y);
-
-/////////////////////////////
-// Draw_SetFlip
-// Draw_GetFlip
-//
-//
-void Draw_SetFlip(DrawImg img, int flip);
-int Draw_GetFlip(DrawImg img);
-
-/////////////////////////////
-// Draw_SetPixel
-// Draw_AddPixel
-//
-//
-DrawImg Draw_SetPixel(DrawImg img, int x, int y, const ColorRgba color);
-DrawImg Draw_AddPixel(DrawImg img, int x, int y, const ColorRgba color, float factor);
-
-/////////////////////////////
-// Draw_DrawBoxFilled
-//
-//
-DrawImg Draw_DrawBoxFilled(DrawImg img, int x1, int y1, int x2, int y2, const ColorRgba color);
-
-/////////////////////////////
-// Draw_DrawBox
-//
-//
-DrawImg Draw_DrawBox(DrawImg img, int x1, int y1, int x2, int y2, const ColorRgba color);
-
-/////////////////////////////
-// Draw_DrawCircle
-//
-//
-DrawImg Draw_DrawCircle(DrawImg img, int centerX, int centerY, int radius, int innerRadius, const ColorRgba color);
-
-/////////////////////////////
-// Draw_DrawImg
-//
-// Draws an image.
-void Draw_DrawImg(DrawImg img, int x, int y, const float scale[2]);
-
-/////////////////////////////
-// Draw_DrawImgResized
-//
-// Draws an image, resizing.
-void Draw_DrawImgResized(DrawImg img, int x, int y, float w, float h);
-
-/////////////////////////////
-// Draw_DrawImgPart
-//
-// Draws an image part.
-void Draw_DrawImgPart(DrawImg img, int x, int y, int w, int h, int i, int j, const float scale[2]);
-
-/////////////////////////////
-// Draw_DrawImgPartHoriz
-//
-// Draws an image part horizontally.
-void Draw_DrawImgPartHoriz(DrawImg img, int x, int y, int w, int i, const float scale[2]);
-
-/////////////////////////////
-// Draw_ImgParallax
-//
-//
-void Draw_ImgParallax(
-	DrawImg img, int imgSize[2], const int imgOffset[2], const float parallaxFactor[2], const int gamePos[2],
-	const int gameSize[2]);
-
-/////////////////////////////
-// Draw_SetColor
-//
-//
-void Draw_SetColor(float r, float g, float b, float a);
-
-////////////////////////////////////////////////
-// DrawFnt //
-/////////////
-// Reference to a Font.
-typedef void *DrawFnt;
-
-/////////////////////////////
-// Draw_DefaultFont
-//
-// Creates the default font.
-DrawFnt Draw_DefaultFont(ColorRgba color);
-
-/////////////////////////////
-// Draw_LoadFont
-//
-// Load a font from a file.
-DrawFnt Draw_LoadFont(char *fichero, int min, int max);
-
-/////////////////////////////
-// Draw_FontScale
-//
-void Draw_FontScale(DrawFnt f, const float scale[2]);
-
-/////////////////////////////
-// Draw_DrawText
-//
-// Draws text using a font
-void Draw_DrawText(DrawFnt f, const char *text, int x, int y);
-
-/////////////////////////////
-// Draw_SaveRGBAToBMP
-//
-//
-void Draw_SaveRGBAToBMP(const char *filename, const uint8_t *data, int width, int height);
-
-/////////////////////////////
-// Draw_SaveRGBAToPNG
-//
-//
-void Draw_SaveRGBAToPNG(const char *filename, const uint8_t *data, int width, int height);
-
-/////////////////////////////
-// Draw_SaveScreenshot
-//
-//
-void Draw_SaveScreenshot(char *filename);
-
-/////////////////////////////
-// Draw_ShowCursor
-//
-//
-void Draw_ShowCursor(int showCursor);
-
-#endif
diff --git a/src/Entity.c b/src/Entity.c
deleted file mode 100644
index d458eb9..0000000
--- a/src/Entity.c
+++ /dev/null
@@ -1,1038 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "Anim.h"
-#include "Draw.h"
-#include "Util.h"
-
-#include "Bucket.h"
-#include "Entity.h"
-
-#define EntityIntFlag_UpdateLight 1
-#define EntityIntFlag_UpdatedPos 2
-#define EntityIntFlag_UpdatedColor 4
-#define EntityIntFlag_UpdateColor 8
-#define EntityIntFlag_UpdatedScale 16
-
-/////////////////////////////
-// Entity_GetFree
-//
-//
-Entity g_FreeEntity = NULL;
-Entity Entity_GetFree() {
-	Entity e;
-
-	if (!g_FreeEntity) {
-		// Allocate a big block of entities
-		int n                = 1024, i;
-		TEntity *newEntities = malloc(sizeof(TEntity) * n);
-		for (i = 0; i < n; i++) {
-			if (i < (n - 1)) {
-				newEntities[i].next = &newEntities[i + 1];
-			} else {
-				newEntities[i].next = NULL;
-			}
-		}
-		g_FreeEntity = newEntities;
-	}
-	e            = g_FreeEntity;
-	g_FreeEntity = e->next;
-	return e;
-}
-
-/////////////////////////////
-// Entity_New
-//
-//
-Entity Entity_New() {
-	Entity e = Entity_GetFree();
-
-	e->base = NULL;
-	e->type = 0;
-	vec2_set(e->pos0, 0.0f, 0.0f);
-	vec2_set(e->pos, 0.0f, 0.0f);
-	e->flags         = EntityFlag_Collision | EntityFlag_Overlap;
-	e->internalFlags = EntityIntFlag_UpdateColor;
-	e->zorder        = 1;
-	e->sortYOffset   = 0;
-
-	vec2_set(e->dir, 0.0f, 0.0f);
-
-	vec2_set(e->vel, 0.0f, 0.0f);
-	e->radius          = 1.0f;
-	e->width           = 1.0f;
-	e->height          = 1.0f;
-	e->mass            = 1.0f;
-	e->elast           = 0.0f;
-	e->backFric_static = 0.0f;
-
-	e->backFric_dynamic = 0.0f;
-	e->fric_static      = 0.0f;
-	e->fric_dynamic     = 0.0f;
-
-	AnimPlay_SetImg(&e->anim, NULL);
-
-	e->color0[0] = e->color0[1] = e->color0[2] = e->color0[3] = 1.0f;
-	e->color[0] = e->color[1] = e->color[2] = e->color[3] = 1.0f;
-
-	e->light[0] = e->light[1] = e->light[2] = e->light[3] = 1.0f;
-	e->defaultColor[0] = e->defaultColor[1] = e->defaultColor[2] = e->defaultColor[3] = 1.0f;
-
-	e->scale0[0] = 1.0f;
-	e->scale0[1] = 1.0f;
-	e->scale[0]  = 1.0f;
-	e->scale[1]  = 1.0f;
-
-	e->oncopy    = NULL;
-	e->oninit    = NULL;
-	e->ondelete  = NULL;
-	e->proc      = NULL;
-	e->postproc  = NULL;
-	e->collision = NULL;
-	e->overlap   = NULL;
-
-	e->A = 0;
-	e->B = 0;
-	e->C = 0;
-	e->D = 0;
-	e->E = 0;
-	vec2_set(e->VecA, 0.0f, 0.0f);
-	vec2_set(e->VecB, 0.0f, 0.0f);
-	e->child = NULL;
-
-	e->next = NULL;
-
-	return (e);
-}
-
-/////////////////////////////
-// Entity_Init
-//
-Entity Entity_Init(Entity e) {
-	if (e->oninit) {
-		e->oninit(e);
-	}
-	return (e);
-}
-
-/////////////////////////////
-// Entity_Destroy
-//
-//
-void Entity_Destroy(Entity e) {
-	if (e->ondelete) {
-		e->ondelete(e);
-	}
-	e->next      = g_FreeEntity;
-	g_FreeEntity = e;
-}
-
-/////////////////////////////
-// Entity_Copy
-//
-//
-Entity Entity_Copy(Entity e) {
-	Entity n;
-
-	n = Entity_New();
-
-	n->base = e;
-	n->type = e->type;
-	vec2_set(n->pos, e->pos[0], e->pos[1]);
-	n->flags         = e->flags;
-	n->internalFlags = e->internalFlags;
-	n->zorder        = e->zorder;
-	n->sortYOffset   = e->sortYOffset;
-
-	vec2_set(n->vel, e->vel[0], e->vel[1]);
-	n->radius           = e->radius;
-	n->width            = e->width;
-	n->height           = e->height;
-	n->mass             = e->mass;
-	n->elast            = e->elast;
-	n->backFric_static  = e->backFric_static;
-	n->backFric_dynamic = e->backFric_dynamic;
-	n->fric_static      = e->fric_static;
-	n->fric_dynamic     = e->fric_dynamic;
-
-	AnimPlay_Copy(&n->anim, &e->anim);
-	n->color0[0]       = e->color0[0];
-	n->color0[1]       = e->color0[1];
-	n->color0[2]       = e->color0[2];
-	n->color0[3]       = e->color0[3];
-	n->color[0]        = e->color[0];
-	n->color[1]        = e->color[1];
-	n->color[2]        = e->color[2];
-	n->color[3]        = e->color[3];
-	n->light[0]        = e->light[0];
-	n->light[1]        = e->light[1];
-	n->light[2]        = e->light[2];
-	n->light[3]        = e->light[3];
-	n->defaultColor[0] = e->defaultColor[0];
-	n->defaultColor[1] = e->defaultColor[1];
-	n->defaultColor[2] = e->defaultColor[2];
-	n->defaultColor[3] = e->defaultColor[3];
-
-	n->scale0[0] = e->scale[0];
-	n->scale0[1] = e->scale[1];
-	n->scale[0]  = e->scale[0];
-	n->scale[1]  = e->scale[1];
-
-	n->oncopy    = e->oncopy;
-	n->oninit    = e->oninit;
-	n->ondelete  = e->ondelete;
-	n->proc      = e->proc;
-	n->postproc  = e->postproc;
-	n->collision = e->collision;
-	n->overlap   = e->overlap;
-
-	n->A     = e->A;
-	n->B     = e->B;
-	n->C     = e->C;
-	n->D     = e->D;
-	n->E     = e->E;
-	n->child = e->child;
-
-	n->bbox.parent = n;
-	Entity_CalcBBox(n);
-
-	// Call the copy event
-	if (n->oncopy) {
-		n->oncopy(n);
-	}
-
-	return (n);
-}
-
-/////////////////////////////
-// Entity_CalcBBox
-//
-//
-#define BBox_ExtraMargin 10
-#define max(a, b) ((a) > (b) ? (a) : (b))
-void Entity_CalcBBox(Entity e) {
-	float hHeight = (max(e->height, e->radius) / 2) + BBox_ExtraMargin;
-	float hWidth  = (max(e->width, e->radius) / 2) + BBox_ExtraMargin;
-	if (e->vel[0] > 0) {
-		e->bbox.x2 = e->pos[0] + e->vel[0] + hWidth;
-		e->bbox.x1 = e->pos[0] - hWidth;
-	} else {
-		e->bbox.x1 = (e->pos[0] + e->vel[0]) - hWidth;
-		e->bbox.x2 = e->pos[0] + hWidth;
-	}
-	if (e->vel[1] > 0) {
-		e->bbox.y2 = e->pos[1] + e->vel[1] + hHeight;
-		e->bbox.y1 = e->pos[1] - hHeight;
-	} else {
-		e->bbox.y1 = (e->pos[1] + e->vel[1]) - hHeight;
-		e->bbox.y2 = e->pos[1] + hHeight;
-	}
-	e->bbox.changed = 1;
-}
-
-/////////////////////////////
-// Entity_BBoxIntersect
-//
-//
-int Entity_BBoxIntersect(Entity ent1, Entity ent2) {
-	return BBox_Intersect(&ent1->bbox, &ent2->bbox);
-}
-
-/////////////////////////////
-// Entity_Draw
-//
-//
-void Entity_Draw(Entity e, int x, int y, float f) {
-	vec2 fPos;
-	float scale[2];
-	if (e->internalFlags & EntityIntFlag_UpdatedColor) {
-		Draw_SetColor(
-			e->color0[0] - f * (e->color0[0] - e->color[0]),
-			e->color0[1] - f * (e->color0[1] - e->color[1]),
-			e->color0[2] - f * (e->color0[2] - e->color[2]),
-			e->color0[3] - f * (e->color0[3] - e->color[3]));
-	} else {
-		Draw_SetColor(e->color[0], e->color[1], e->color[2], e->color[3]);
-	}
-	if (e->internalFlags & EntityIntFlag_UpdatedScale) {
-		scale[0] = e->scale0[0] - f * (e->scale0[0] - e->scale[0]);
-		scale[1] = e->scale0[1] - f * (e->scale0[1] - e->scale[1]);
-	} else {
-		scale[0] = e->scale[0];
-		scale[1] = e->scale[1];
-	}
-	if (e->internalFlags & EntityIntFlag_UpdatedPos) {
-		vec2_interpol(fPos, e->pos0, e->pos, f);
-		AnimPlay_Draw(&e->anim, (int)(fPos[0] + x), fPos[1] + y, scale);
-	} else {
-		AnimPlay_Draw(&e->anim, e->pos[0] + x, e->pos[1] + y, scale);
-	}
-}
-
-/////////////////////////////
-// Entity_IsVisible
-//
-//
-int Entity_IsVisible(Entity e, int x, int y, int w, int h) {
-	int xmax, xmin;
-	int ymax, ymin;
-	int ih, iw;
-
-	AnimPlay_GetSize(&e->anim, &iw, &ih);
-
-	xmin = x - iw;
-	xmax = x + w + iw;
-	ymin = y - ih;
-	ymax = y + h + ih;
-
-	if (e->pos[0] < xmin || e->pos[0] > xmax || e->pos[1] < ymin || e->pos[1] > ymax) {
-		return (0);
-	}
-	return (1);
-}
-
-/////////////////////////////
-// Entity_Process
-//
-//
-void Entity_Process(Entity e, int ft) {
-	if (e->internalFlags & EntityIntFlag_UpdatedPos) {
-		vec2_copy(e->pos0, e->pos);
-		e->internalFlags &= ~EntityIntFlag_UpdatedPos;
-	}
-
-	if (e->internalFlags & EntityIntFlag_UpdatedScale) {
-		e->scale0[0] = e->scale[0];
-		e->scale0[1] = e->scale[1];
-		e->internalFlags &= ~EntityIntFlag_UpdatedScale;
-	}
-
-	if (e->internalFlags & EntityIntFlag_UpdatedColor) {
-		e->color0[0] = e->color[0];
-		e->color0[1] = e->color[1];
-		e->color0[2] = e->color[2];
-		e->color0[3] = e->color[3];
-		e->internalFlags &= ~EntityIntFlag_UpdatedColor;
-	}
-
-	// Launch method
-	if (e->proc) {
-		e->proc(e, ft);
-	}
-}
-
-/////////////////////////////
-// Entity_PostProcess
-//
-//
-void Entity_PostProcess(Entity e, int ft) {
-	float qlen, len;
-
-	// Determine if there is movement
-	qlen = vec2_dot(e->vel, e->vel);
-	if (qlen > 0.0f) {
-
-		// Update position
-		vec2_plus(e->pos, e->pos, e->vel);
-
-		// Apply friction
-		len = sqrtf(qlen);
-		if (len < e->backFric_static) {
-			// Stopped by static friction
-			vec2_set(e->vel, 0, 0);
-		} else {
-			// Apply dynamic friction
-			vec2_scale(e->vel, e->vel, 1.0f - (e->backFric_dynamic + (e->backFric_static / len)));
-		}
-
-		// Mark the update of the position.
-		vec2_copy(e->oldpos, e->pos);
-		e->internalFlags |= EntityIntFlag_UpdatedPos;
-
-		Entity_CalcBBox(e);
-	}
-
-	// Launch method
-	if (e->postproc) {
-		e->postproc(e, ft);
-	}
-
-	// Animate
-	AnimPlay_IncTime(&e->anim, ft);
-}
-
-/////////////////////////////
-// CollisionInfo_New
-//
-//
-CollisionInfo g_FreeCollisionInfo = NULL;
-CollisionInfo CollisionInfo_New(int responseType, Entity ent1, Entity ent2, float t, const vec2 n, int applyFriction) {
-	CollisionInfo collInfo;
-
-	if (!g_FreeCollisionInfo) {
-		collInfo = malloc(sizeof(TCollisionInfo));
-	} else {
-		collInfo            = g_FreeCollisionInfo;
-		g_FreeCollisionInfo = collInfo->next;
-	}
-	collInfo->next = NULL;
-
-	collInfo->responseType = responseType;
-	collInfo->ent1         = ent1;
-	collInfo->ent2         = ent2;
-	collInfo->t            = t;
-	vec2_copy(collInfo->n, n);
-	collInfo->applyFriction = applyFriction;
-
-	return collInfo;
-}
-
-/////////////////////////////
-// CollisionInfo_Destroy
-//
-//
-void CollisionInfo_Destroy(CollisionInfo *collInfoRef) {
-	if (collInfoRef == NULL || collInfoRef[0] == NULL) {
-		return;
-	}
-
-	CollisionInfo collInfo = collInfoRef[0];
-	CollisionInfo nextCollInfo;
-	while (collInfo != NULL) {
-		nextCollInfo        = collInfo->next;
-		collInfo->next      = g_FreeCollisionInfo;
-		g_FreeCollisionInfo = collInfo;
-		collInfo            = nextCollInfo;
-	}
-	collInfoRef[0] = NULL;
-}
-
-/////////////////////////////
-// CollisionInfo_Add
-//
-//
-void CollisionInfo_Add(
-	CollisionInfo *collInfoRef, int responseType, Entity ent1, Entity ent2, float t, vec2 n, int applyFriction) {
-	if (collInfoRef == NULL) {
-		return;
-	}
-	CollisionInfo prevCollInfo = NULL;
-	CollisionInfo collInfo     = collInfoRef[0];
-	CollisionInfo newCollInfo  = CollisionInfo_New(responseType, ent1, ent2, t, n, applyFriction);
-
-	while (collInfo != NULL && collInfo->t < t) {
-		prevCollInfo = collInfo;
-		collInfo     = collInfo->next;
-	}
-	if (prevCollInfo == NULL) {
-		collInfoRef[0] = newCollInfo;
-	} else {
-		prevCollInfo->next = newCollInfo;
-	}
-	newCollInfo->next = collInfo;
-}
-
-/////////////////////////////
-// CollisionInfo_CheckRepetition
-//
-//
-int CollisionInfo_CheckRepetition(CollisionInfo collInfo, Entity ent1, Entity ent2) {
-	while (collInfo != NULL) {
-		if ((collInfo->ent1 == ent1 && collInfo->ent2 == ent2) || (collInfo->ent1 == ent2 && collInfo->ent2 == ent1)) {
-			return (1);
-		}
-		collInfo = collInfo->next;
-	}
-	return (0);
-}
-
-/////////////////////////////
-// Entity_CheckCollisions
-//
-//
-int Entity_CheckCollision(Entity ent1, Entity ent2, CollisionInfo *collInfoRef) {
-	float t;
-	vec2 n;
-	vec2 vel;
-	int flags = ent1->flags | ent2->flags;
-
-	if (flags & EntityFlag_Block) {
-		// One of the entities is a block and none is a platform
-		Entity ent, ent_block;
-		float auxT, block_len;
-		vec2 auxN, p;
-		int applyFriction;
-
-		// Decide who is the block and who is the ent
-		if (ent1->mass <= 0.0f && ent2->mass > 0.0f) {
-			ent       = ent2;
-			ent_block = ent1;
-		} else if (ent2->mass <= 0.0f && ent1->mass > 0.0f) {
-			ent       = ent1;
-			ent_block = ent2;
-		} else {
-			// Two static or two dinamic entities?!?
-			return (0);
-		}
-
-		// Prepare some variables
-		t             = 1.0f;
-		applyFriction = 1;
-
-		if (flags & EntityFlag_BlockTop) {
-			vec2_set(auxN, 0, -1);
-			vec2_scaleadd(p, ent_block->pos, auxN, (ent->height + ent_block->height) / 2);
-			block_len = ent_block->width + ent->width;
-			if (Intersect_RayEdge(ent->pos, ent->vel, auxN, p, block_len, &auxT)) {
-				if (auxT < t) {
-					vec2_copy(n, auxN);
-					t             = auxT;
-					applyFriction = 1;
-				}
-			}
-		}
-
-		if (flags & EntityFlag_BlockBottom) {
-			vec2_set(auxN, 0, 1);
-			vec2_scaleadd(p, ent_block->pos, auxN, (ent->height + ent_block->height) / 2);
-			block_len = ent_block->width + ent->width;
-			if (Intersect_RayEdge(ent->pos, ent->vel, auxN, p, block_len, &auxT)) {
-				if (auxT < t) {
-					vec2_copy(n, auxN);
-					t             = auxT;
-					applyFriction = 1;
-				}
-			}
-		}
-
-		if (flags & EntityFlag_BlockRight) {
-			vec2_set(auxN, 1, 0);
-			vec2_scaleadd(p, ent_block->pos, auxN, (ent->width + ent_block->width) / 2);
-			block_len = ent_block->height + ent->height;
-			if (Intersect_RayEdge(ent->pos, ent->vel, auxN, p, block_len, &auxT)) {
-				if (auxT < t) {
-					vec2_copy(n, auxN);
-					t             = auxT;
-					applyFriction = 0;
-				}
-			}
-		}
-
-		if (flags & EntityFlag_BlockLeft) {
-			vec2_set(auxN, -1, 0);
-			vec2_scaleadd(p, ent_block->pos, auxN, (ent->width + ent_block->width) / 2);
-			block_len = ent_block->height + ent->height;
-			if (Intersect_RayEdge(ent->pos, ent->vel, auxN, p, block_len, &auxT)) {
-				if (auxT < t) {
-					vec2_copy(n, auxN);
-					t             = auxT;
-					applyFriction = 0;
-				}
-			}
-		}
-
-		if (t < 1.0f) {
-			CollisionInfo_Add(collInfoRef, CollisionResponse_Line, ent, ent_block, t, n, applyFriction);
-			return (1);
-		}
-
-		return (0);
-	}
-
-	// Circle-Circle test from ent1
-	vec2_minus(vel, ent1->vel, ent2->vel);
-	if (Collision_CircleCircle(ent1->pos, ent1->radius, vel, ent2->pos, ent2->radius, &t, n)) {
-		CollisionInfo_Add(collInfoRef, CollisionResponse_Circle, ent1, ent2, t, n, 0);
-		return (1);
-	}
-	return (0);
-}
-
-/////////////////////////////
-// Entity_CollisionResponseCircle
-//
-// Normal response to a collision between circles.
-void Entity_CollisionResponseCircle(Entity b1, Entity b2, float t, const vec2 n) {
-	float moment;
-	vec2 temp;
-	float elast;
-
-	if (b1->mass > 0.0f && b2->mass > 0.0f) {
-		// Calculate elasticity
-		elast = (b1->mass * b1->elast + b2->mass * b2->elast) / (b1->mass + b2->mass);
-
-		// Collision between two massed balls
-		moment = ((1.0f + elast) * b1->mass * b2->mass * (fabs(vec2_dot(b1->vel, n)) + fabs(vec2_dot(b2->vel, n)))) /
-		         (b1->mass + b2->mass);
-		vec2_scale(temp, n, moment / b1->mass);
-		vec2_minus(b1->vel, b1->vel, temp);
-		Entity_CalcBBox(b1);
-		vec2_scale(temp, n, moment / b2->mass);
-		vec2_plus(b2->vel, b2->vel, temp);
-		Entity_CalcBBox(b2);
-	} else if (b1->mass > 0.0f && b2->mass <= 0.0f) {
-		// Collision between a massed ball and a fixed ball
-		moment = (1.0f + b1->elast) * (vec2_dot(b1->vel, n));
-		vec2_scale(temp, n, moment);
-		vec2_minus(b1->vel, b1->vel, temp);
-		Entity_CalcBBox(b1);
-	} else if (b1->mass <= 0.0f && b2->mass > 0.0f) {
-		// Collision between a massed ball and a fixed ball
-		// (imposible, but better safe)
-		moment = (1.0f + b2->elast) * (vec2_dot(b2->vel, n));
-		vec2_scale(temp, n, moment);
-		vec2_plus(b2->vel, b2->vel, temp);
-		Entity_CalcBBox(b2);
-	} else {
-		// Collision between 2 fixed balls
-		// (imposible, but better safe)
-		vec2_set(b1->vel, 0, 0);
-		Entity_CalcBBox(b1);
-		vec2_set(b2->vel, 0, 0);
-		Entity_CalcBBox(b2);
-	}
-}
-
-/////////////////////////////
-// Entity_CollisionResponseLine
-//
-// Normal response to a collision with a line.
-void Entity_CollisionResponseLine(Entity ent, Entity ent2, float t, vec2 norm, int applyFriction) {
-	vec2 pos2, vel2, velFric, intersection;
-	float dist, fric_static, fric_dynamic, fricLen;
-
-	// Calculate end position
-	vec2_scale(vel2, ent->vel, 1.0f - t);
-	dist = -vec2_dot(norm, vel2);
-	vec2_plus(pos2, ent->pos, ent->vel);
-	vec2_scaleadd(pos2, pos2, norm, dist);
-
-	// Calculate intersection
-	vec2_scaleadd(intersection, ent->pos, ent->vel, t);
-
-	if (applyFriction) {
-		// Calculate friction
-		fric_static  = (ent->fric_static + ent2->fric_static) / 2;
-		fric_dynamic = (ent->fric_dynamic + ent2->fric_dynamic) / 2;
-
-		// Apply friction
-		vec2_minus(velFric, pos2, intersection);
-		fricLen = sqrtf(vec2_dot(velFric, velFric));
-		if (fricLen < fric_static) {
-			// Apply static friction
-			vec2_copy(pos2, intersection);
-		} else {
-			// Apply dynamic friction
-			if (fricLen > 0.0f) {
-				vec2_scaleadd(pos2, intersection, velFric, 1.0f - (fric_dynamic + (fric_static / fricLen)));
-			} else {
-				vec2_scaleadd(pos2, intersection, velFric, 1.0f - fric_dynamic);
-			}
-		}
-	}
-
-	// Apply to velocity
-	vec2_scaleadd(pos2, pos2, norm, 0.1f);
-	vec2_minus(ent->vel, pos2, ent->pos);
-
-	Entity_CalcBBox(ent);
-}
-
-/////////////////////////////
-// Entity_CollisionInfoResponse
-//
-//
-int Entity_CollisionInfoResponse(CollisionInfo collInfo) {
-	while (collInfo != NULL) {
-		// Handle colision
-		int response = 1;
-		int rc;
-		vec2 n1;
-		vec2 n2;
-		vec2_copy(n1, collInfo->n);
-		vec2_scale(n2, collInfo->n, -1.0f);
-
-		// Check the collision methods
-		if (collInfo->ent1->collision) {
-			rc = collInfo->ent1->collision(collInfo->ent1, collInfo->ent2, collInfo->t, n1);
-			if (rc == 0)
-				response = 0;
-			if (rc > 1)
-				response = 2;
-		}
-		if (collInfo->ent2->collision) {
-			rc = collInfo->ent2->collision(collInfo->ent2, collInfo->ent1, collInfo->t, n2);
-			if (rc == 0)
-				response = 0;
-			if (rc > 1)
-				response = 2;
-		}
-
-		// Collision response
-		if (response == 1) {
-			if (collInfo->responseType == CollisionResponse_Line) {
-				Entity_CollisionResponseLine(
-					collInfo->ent1, collInfo->ent2, collInfo->t, collInfo->n, collInfo->applyFriction);
-			} else if (collInfo->responseType == CollisionResponse_Circle) {
-				if (vec2_dot(collInfo->ent1->vel, collInfo->ent1->vel) >
-				    vec2_dot(collInfo->ent2->vel, collInfo->ent2->vel)) {
-					Entity_CollisionResponseCircle(collInfo->ent1, collInfo->ent2, collInfo->t, n2);
-				} else {
-					Entity_CollisionResponseCircle(collInfo->ent2, collInfo->ent1, collInfo->t, n1);
-				}
-			}
-			return (1);
-		}
-		if (response == 2) {
-			return (1);
-		}
-
-		collInfo = collInfo->next;
-	}
-	return (0);
-}
-
-/////////////////////////////
-// Entity_Overlaps
-//
-//
-void Entity_Overlaps(Entity b1, Entity b2) {
-	vec2 len;
-
-	vec2_minus(len, b1->pos, b2->pos);
-
-	vec2_set(len, fabs(b1->pos[0] - b2->pos[0]), fabs(b1->pos[1] - b2->pos[1]));
-	if (b1->overlap) {
-		if (len[0] <= b1->radius && len[1] <= b1->radius) {
-			b1->overlap(b1, b2);
-		}
-	}
-	if (b2->overlap) {
-		if (len[0] <= b2->radius && len[1] <= b2->radius) {
-			b2->overlap(b2, b1);
-		}
-	}
-}
-
-/////////////////////////////
-// Entity_GetPos
-//
-//
-void Entity_GetPos(Entity e, vec2 pos) { vec2_copy(pos, e->pos); }
-
-/////////////////////////////
-// Entity_SetPos
-//
-//
-void Entity_SetPos(Entity e, const vec2 pos) {
-	vec2_copy(e->pos, pos);
-	vec2_copy(e->oldpos, pos);
-	vec2_copy(e->pos0, pos);
-	Entity_CalcBBox(e);
-}
-
-/////////////////////////////
-// Entity_AddPos
-//
-//
-void Entity_AddPos(Entity e, const vec2 pos) {
-	vec2_plus(e->pos, e->pos, pos);
-	vec2_copy(e->oldpos, e->pos);
-	vec2_copy(e->pos0, e->pos);
-	Entity_CalcBBox(e);
-}
-
-/////////////////////////////
-// Entity_UpdatePos
-//
-//
-void Entity_UpdatePos(Entity e, const vec2 pos) {
-
-	// Mark the update of the position.
-	vec2_copy(e->oldpos, e->pos);
-	e->internalFlags |= EntityIntFlag_UpdatedPos;
-
-	vec2_copy(e->pos, pos);
-}
-
-/////////////////////////////
-// Entity_AddVel
-//
-void Entity_AddVel(Entity e, const vec2 vel) {
-	vec2_plus(e->vel, e->vel, vel);
-	Entity_CalcBBox(e);
-}
-
-/////////////////////////////
-// Entity_SetVel
-//
-void Entity_SetVel(Entity e, const vec2 vel) {
-	vec2_copy(e->vel, vel);
-	Entity_CalcBBox(e);
-}
-
-/////////////////////////////
-// Entity_SetVelH
-//
-void Entity_SetVelH(Entity e, float v) {
-	e->vel[0] = v;
-	Entity_CalcBBox(e);
-}
-
-/////////////////////////////
-// Entity_SetVelV
-//
-void Entity_SetVelV(Entity e, float v) {
-	e->vel[1] = v;
-	Entity_CalcBBox(e);
-}
-
-/////////////////////////////
-// Entity_AddVelLimit
-//
-//
-void Entity_AddVelLimit(Entity e, const vec2 vel, float limit) {
-	float vlen_orig, vlen;
-	vec2 dir, vel_temp;
-
-	// Normalize vel getting vel
-	vlen_orig = sqrtf(vec2_dot(vel, vel));
-	vec2_scale(dir, vel, 1.0f / vlen_orig);
-
-	// Limit velocity
-	vlen = vec2_dot(e->vel, dir);
-	if (vlen < limit) {
-		vlen = limit - vlen;
-		if (vlen > vlen_orig) {
-			vlen = vlen_orig;
-		}
-		vec2_scale(vel_temp, dir, vlen);
-		vec2_plus(e->vel, e->vel, vel_temp);
-	}
-	Entity_CalcBBox(e);
-}
-
-/////////////////////////////
-// Entity_AddVelLimitH
-//
-void Entity_AddVelLimitH(Entity e, float v, float limit) {
-	e->vel[0] += v;
-	if (e->vel[0] > 0.0f) {
-		if (e->vel[0] > limit) {
-			e->vel[0] = limit;
-		}
-	} else {
-		if (e->vel[0] < -limit) {
-			e->vel[0] = -limit;
-		}
-	}
-	Entity_CalcBBox(e);
-}
-
-/////////////////////////////
-// Entity_AddVelLimitH
-//
-void Entity_AddVelLimitV(Entity e, float v, float limit) {
-	e->vel[1] += v;
-	if (e->vel[1] > 0.0f) {
-		if (e->vel[1] > limit) {
-			e->vel[1] = limit;
-		}
-	} else {
-		if (e->vel[1] < -limit) {
-			e->vel[1] = -limit;
-		}
-	}
-	Entity_CalcBBox(e);
-}
-
-/////////////////////////////
-// Entity_SetColor
-//
-//
-void Entity_SetColor(Entity e, float r, float g, float b, float a) {
-	e->color[0]  = r;
-	e->color[1]  = g;
-	e->color[2]  = b;
-	e->color[3]  = a;
-	e->color0[0] = r;
-	e->color0[1] = g;
-	e->color0[2] = b;
-	e->color0[3] = a;
-	e->internalFlags &= ~EntityIntFlag_UpdatedColor;
-}
-
-/////////////////////////////
-// Entity_AddColor
-//
-//
-void Entity_AddColor(Entity e, float r, float g, float b, float a) {
-	e->color[0] += r;
-	if (e->color[0] > 1.0f)
-		e->color[0] = 1.0f;
-	e->color[1] += g;
-	if (e->color[1] > 1.0f)
-		e->color[1] = 1.0f;
-	e->color[2] += b;
-	if (e->color[2] > 1.0f)
-		e->color[2] = 1.0f;
-	e->color[3] += a;
-	if (e->color[3] > 1.0f)
-		e->color[3] = 1.0f;
-	e->internalFlags |= EntityIntFlag_UpdatedColor;
-}
-
-/////////////////////////////
-// Entity_MultColor
-//
-//
-void Entity_MultColor(Entity e, float r, float g, float b, float a) {
-	e->color[0] *= r;
-	e->color[1] *= g;
-	e->color[2] *= b;
-	e->color[3] *= a;
-	e->internalFlags |= EntityIntFlag_UpdatedColor;
-}
-
-/////////////////////////////
-// Entity_SetLight
-//
-//
-void Entity_SetLight(Entity e, float r, float g, float b, float rad) {
-	e->light[0] = r;
-	e->light[1] = g;
-	e->light[2] = b;
-	e->light[3] = rad;
-
-	if (!(e->flags & EntityFlag_Light)) {
-		e->internalFlags |= EntityIntFlag_UpdateLight;
-	}
-}
-
-/////////////////////////////
-// Entity_SetDefaultColor
-//
-//
-void Entity_SetDefaultColor(Entity e, float r, float g, float b, float a) {
-	e->defaultColor[0] = r;
-	e->defaultColor[1] = g;
-	e->defaultColor[2] = b;
-	e->defaultColor[3] = a;
-}
-
-/////////////////////////////
-// Entity_SetScale
-//
-void Entity_SetScale(Entity e, const float scale[2]) {
-	e->scale[0] = scale[0];
-	e->scale[1] = scale[1];
-	e->internalFlags |= EntityIntFlag_UpdatedScale;
-}
-
-/////////////////////////////
-// Entity_GetScale
-//
-void Entity_GetScale(Entity e, float scale[2]) {
-	scale[0] = e->scale[0];
-	scale[1] = e->scale[1];
-}
-
-/////////////////////////////
-// Entity_Iluminate
-//
-//
-void Entity_Iluminate(Entity e, Entity *entityList, int n) {
-	int i;
-	vec2 vdist;
-	float qdist, f;
-	float qrad;
-
-	if (e->flags & EntityFlag_Light) {
-		Entity_SetColor(e, e->defaultColor[0], e->defaultColor[1], e->defaultColor[2], e->defaultColor[3]);
-		return;
-	}
-
-	e->color[0] = e->light[0];
-	e->color[1] = e->light[1];
-	e->color[2] = e->light[2];
-
-	e->color[3] = e->color[3];
-
-	for (i = 0; i < n; i++) {
-		if (e == entityList[i] || !(entityList[i]->flags & EntityFlag_Light)) {
-			continue;
-		}
-
-		vec2_minus(vdist, e->pos, entityList[i]->pos);
-		qdist = vec2_dot(vdist, vdist);
-		qrad  = entityList[i]->light[3] * entityList[i]->light[3];
-		if (qdist < qrad) {
-			f = 1.0f - qdist / qrad;
-			Entity_AddColor(
-				e, f * entityList[i]->light[0], f * entityList[i]->light[1], f * entityList[i]->light[2], 0.0f);
-		}
-	}
-
-	Entity_MultColor(e, e->defaultColor[0], e->defaultColor[1], e->defaultColor[2], e->defaultColor[3]);
-	e->internalFlags &= ~EntityIntFlag_UpdateLight;
-
-	if (e->internalFlags & EntityIntFlag_UpdateColor) {
-		e->color0[0] = e->color[0];
-		e->color0[1] = e->color[1];
-		e->color0[2] = e->color[2];
-		e->color0[3] = e->color[3];
-		e->internalFlags &= ~EntityIntFlag_UpdateColor;
-	}
-}
-
-/////////////////////////////
-// Entity_MarkUpdateLight
-//
-//
-void Entity_MarkUpdateLight(Entity e, Entity *elist, int n) {
-	if (e->flags & EntityFlag_Light) {
-		int i;
-		vec2 max, min;
-
-		if (e->pos0[0] < e->oldpos[0]) {
-			min[0] = e->pos0[0] - e->light[3];
-			max[0] = e->oldpos[0] + e->light[3];
-		} else {
-			min[0] = e->oldpos[0] - e->light[3];
-			max[0] = e->pos0[0] + e->light[3];
-		}
-		if (e->pos0[1] < e->oldpos[1]) {
-			min[1] = e->pos0[1] - e->light[3];
-			max[1] = e->oldpos[1] + e->light[3];
-		} else {
-			min[1] = e->oldpos[1] - e->light[3];
-			max[1] = e->pos0[1] + e->light[3];
-		}
-		for (i = 0; i < n; i++) {
-			if (elist[i] != NULL && min[0] <= elist[i]->pos0[0] && max[0] >= elist[i]->pos0[0] &&
-			    min[1] <= elist[i]->pos0[1] && max[1] >= elist[i]->pos0[1]) {
-				elist[i]->internalFlags |= EntityIntFlag_UpdateLight;
-			}
-		}
-	} else {
-		e->internalFlags |= EntityIntFlag_UpdateLight;
-	}
-}
-
-/////////////////////////////
-// Entity_IsLight
-//
-int Entity_IsLight(Entity e) { return (e->flags & EntityFlag_Light); }
-
-/////////////////////////////
-// Entity_IsUpdateLight
-//
-int Entity_IsUpdateLight(Entity e) { return (e->internalFlags & EntityIntFlag_UpdateLight); }
-
-/////////////////////////////
-// Entity_IsMoving
-//
-int Entity_IsMoving(Entity e) { return (e->internalFlags & EntityIntFlag_UpdatedPos); }
diff --git a/src/Entity.h b/src/Entity.h
deleted file mode 100644
index 4231cbe..0000000
--- a/src/Entity.h
+++ /dev/null
@@ -1,286 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifndef Entity_H
-#define Entity_H
-
-#include "Anim.h"
-#include "Bucket.h"
-#include "Draw.h"
-#include "Util.h"
-
-////////////////////////////////////////////////
-// Entity
-//
-#define EntityFlag_Collision 0x00000001
-#define EntityFlag_Overlap 0x00000002
-#define EntityFlag_Light 0x00000004
-#define EntityFlag_BlockTop 0x00000100
-#define EntityFlag_BlockRight 0x00000200
-#define EntityFlag_BlockBottom 0x00000400
-#define EntityFlag_BlockLeft 0x00000800
-#define EntityFlag_Block 0x0000FF00
-#define EntityFlag_PlatformCollision 0x00000101
-#define EntityFlag_BlockCollision 0x0000FF01
-
-typedef struct TEntity TEntity, *Entity;
-struct TEntity {
-	Entity base;
-
-	int type;
-	vec2 oldpos;
-	vec2 pos0;
-	vec2 pos;
-	int flags;
-	int internalFlags;
-	int zorder;
-	float sortYOffset;
-
-	vec2 dir;
-
-	vec2 vel;
-	vec2 bod_offset;
-	float radius;
-	float width;
-	float height;
-	float mass;
-	float elast;
-	float backFric_static;
-	float backFric_dynamic;
-	float fric_static;
-	float fric_dynamic;
-
-	AnimPlay anim;
-
-	float color0[4];
-	float color[4];
-
-	float light[4];
-	float defaultColor[4];
-
-	float scale0[2];
-	float scale[2];
-
-	void (*oncopy)(Entity ent);
-	void (*oninit)(Entity ent);
-	void (*ondelete)(Entity ent);
-	void (*proc)(Entity ent, int ft);
-	void (*postproc)(Entity ent, int ft);
-	int (*collision)(Entity ent, Entity ent2, float t, vec2 n);
-	void (*overlap)(Entity ent, Entity ent2);
-
-	int A;
-	int B;
-	int C;
-	int D;
-	int E;
-	vec2 VecA;
-	vec2 VecB;
-	Entity child;
-
-	TBBox bbox;
-
-	Entity next;
-};
-
-/////////////////////////////
-// Entity_GetFree
-//
-Entity Entity_GetFree();
-
-/////////////////////////////
-// Entity_New
-//
-Entity Entity_New();
-
-/////////////////////////////
-// Entity_Init
-//
-Entity Entity_Init(Entity e);
-
-/////////////////////////////
-// Entity_Destroy
-//
-void Entity_Destroy(Entity e);
-
-/////////////////////////////
-// Entity_Copy
-//
-Entity Entity_Copy(Entity e);
-
-/////////////////////////////
-// Entity_CalcBBox
-//
-//
-void Entity_CalcBBox(Entity e);
-
-/////////////////////////////
-// Entity_BBoxIntersect
-//
-//
-int Entity_BBoxIntersect(Entity ent1, Entity ent2);
-
-/////////////////////////////
-// Entity_Draw
-//
-void Entity_Draw(Entity e, int x, int y, float f);
-
-/////////////////////////////
-// Entity_IsVisible
-//
-int Entity_IsVisible(Entity e, int x, int y, int w, int h);
-
-/////////////////////////////
-// Entity_Process
-//
-void Entity_Process(Entity e, int ft);
-
-/////////////////////////////
-// Entity_PostProcess
-//
-void Entity_PostProcess(Entity e, int ft);
-
-////////////////////////////////////////////////
-// CollisionInfo
-//
-#define CollisionResponse_Circle 1
-#define CollisionResponse_Line 2
-typedef struct TCollisionInfo TCollisionInfo, *CollisionInfo;
-struct TCollisionInfo {
-	int responseType;
-	Entity ent1;
-	Entity ent2;
-	float t;
-	vec2 n;
-	int applyFriction;
-
-	CollisionInfo next;
-};
-
-/////////////////////////////
-// CollisionInfo_New
-//
-//
-CollisionInfo CollisionInfo_New(int responseType, Entity ent1, Entity ent2, float t, const vec2 n, int applyFriction);
-
-/////////////////////////////
-// CollisionInfo_Destroy
-//
-//
-void CollisionInfo_Destroy(CollisionInfo *collInfoRef);
-
-/////////////////////////////
-// CollisionInfo_Add
-//
-//
-void CollisionInfo_Add(
-	CollisionInfo *collInfo, int responseType, Entity ent1, Entity ent2, float t, vec2 n, int applyFriction);
-
-/////////////////////////////
-// CollisionInfo_CheckRepetition
-//
-//
-int CollisionInfo_CheckRepetition(CollisionInfo collInfo, Entity ent1, Entity ent2);
-
-/////////////////////////////
-// Entity_CheckCollision
-//
-//
-int Entity_CheckCollision(Entity ent1, Entity ent2, CollisionInfo *collInfoRef);
-
-/////////////////////////////
-// Entity_CollisionResponseClircle
-//
-// Normal response to a collision of spheres.
-void Entity_CollisionResponseCircle(Entity b1, Entity b2, float t, const vec2 n);
-
-/////////////////////////////
-// Entity_CollisionResponseLine
-//
-// Normal response to a collision with a line.
-void Entity_CollisionResponseLine(Entity ent, Entity ent2, float t, vec2 n, int applyFriction);
-
-/////////////////////////////
-// Entity_CollisionInfoResponse
-//
-//
-int Entity_CollisionInfoResponse(CollisionInfo collInfo);
-
-/////////////////////////////
-// Entity_Overlaps
-//
-void Entity_Overlaps(Entity b1, Entity b2);
-
-/////////////////////////////
-// Entity_GetPos
-// Entity_SetPos
-// Entity_AddPos
-// Entity_UpdatePos
-//
-void Entity_GetPos(Entity e, vec2 pos);
-void Entity_SetPos(Entity e, const vec2 pos);
-void Entity_AddPos(Entity e, const vec2 pos);
-void Entity_UpdatePos(Entity e, const vec2 pos);
-
-/////////////////////////////
-// Entity_AddVel
-// Entity_SetVel
-// Entity_SetVelH
-// Entity_SetVelV
-// Entity_AddVelLimit
-// Entity_AddVelLimitH
-// Entity_AddVelLimitH
-//
-void Entity_AddVel(Entity e, const vec2 vel);
-void Entity_SetVel(Entity e, const vec2 vel);
-void Entity_SetVelH(Entity e, float v);
-void Entity_SetVelV(Entity e, float v);
-void Entity_AddVelLimit(Entity e, const vec2 vel, float limit);
-void Entity_AddVelLimitH(Entity e, float v, float limit);
-void Entity_AddVelLimitV(Entity e, float v, float limit);
-
-/////////////////////////////
-// Entity_SetColor
-// Entity_AddColor
-// Entity_MultColor
-// Entity_AddColor
-// Entity_SetDefaultColor
-//
-void Entity_SetColor(Entity e, float r, float g, float b, float a);
-void Entity_AddColor(Entity e, float r, float g, float b, float a);
-void Entity_MultColor(Entity e, float r, float g, float b, float a);
-void Entity_SetLight(Entity e, float r, float g, float b, float rad);
-void Entity_SetDefaultColor(Entity e, float r, float g, float b, float a);
-
-/////////////////////////////
-// Entity_SetScale
-// Entity_GetScale
-//
-void Entity_SetScale(Entity e, const float scale[2]);
-void Entity_GetScale(Entity e, float scale[2]);
-
-/////////////////////////////
-// Entity_Iluminate
-//
-void Entity_Iluminate(Entity e, Entity *entityList, int n);
-
-/////////////////////////////
-// Entity_MarkUpdateLight
-//
-void Entity_MarkUpdateLight(Entity e, Entity *elist, int n);
-
-/////////////////////////////
-// Entity_IsLight
-//
-int Entity_IsLight(Entity e);
-
-/////////////////////////////
-// Entity_IsUpdateLight
-//
-int Entity_IsUpdateLight(Entity e);
-
-/////////////////////////////
-// Entity_IsMoving
-//
-int Entity_IsMoving(Entity e);
-
-#endif
diff --git a/src/FontData.h b/src/FontData.h
deleted file mode 100644
index 59fe67d..0000000
--- a/src/FontData.h
+++ /dev/null
@@ -1,260 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-static uint8_t fontData_8x8[2048] = {
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0xfe, 0xfe, 0xfe, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x10, 0x38, 0x7c, 0xfe, 0x00, 0x00, //
-	0x00, 0x00, 0xfe, 0x7c, 0x38, 0x10, 0x00, 0x00, //
-	0x20, 0x30, 0x38, 0x3c, 0x38, 0x30, 0x20, 0x00, //
-	0x04, 0x0c, 0x1c, 0x3c, 0x1c, 0x0c, 0x04, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x18, 0x00, //
-	0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x6c, 0x6c, 0xfe, 0x6c, 0xfe, 0x6c, 0x6c, 0x00, //
-	0x18, 0x3e, 0x60, 0x3c, 0x06, 0x7c, 0x18, 0x00, //
-	0x00, 0xc6, 0xcc, 0x18, 0x30, 0x66, 0xc6, 0x00, //
-	0x38, 0x6c, 0x38, 0x76, 0xdc, 0xcc, 0x76, 0x00, //
-	0x18, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x0c, 0x18, 0x30, 0x30, 0x30, 0x18, 0x0c, 0x00, //
-	0x30, 0x18, 0x0c, 0x0c, 0x0c, 0x18, 0x30, 0x00, //
-	0x00, 0x6c, 0x38, 0xfe, 0x38, 0x6c, 0x00, 0x00, //
-	0x00, 0x18, 0x18, 0x7e, 0x18, 0x18, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x30, 0x00, //
-	0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, //
-	0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0x80, 0x00, //
-	0x3c, 0x66, 0x6e, 0x76, 0x66, 0x3c, 0x00, 0x00, //
-	0x18, 0x38, 0x78, 0x18, 0x18, 0x18, 0x00, 0x00, //
-	0x3c, 0x66, 0x06, 0x1c, 0x30, 0x7e, 0x00, 0x00, //
-	0x3c, 0x66, 0x0c, 0x06, 0x66, 0x3c, 0x00, 0x00, //
-	0x1c, 0x3c, 0x6c, 0xcc, 0xfe, 0x0c, 0x00, 0x00, //
-	0x7e, 0x60, 0x7c, 0x06, 0x66, 0x3c, 0x00, 0x00, //
-	0x1c, 0x30, 0x60, 0x7c, 0x66, 0x3c, 0x00, 0x00, //
-	0x7e, 0x06, 0x06, 0x0c, 0x18, 0x18, 0x00, 0x00, //
-	0x3c, 0x66, 0x3c, 0x66, 0x66, 0x3c, 0x00, 0x00, //
-	0x3c, 0x66, 0x3e, 0x06, 0x0c, 0x38, 0x00, 0x00, //
-	0x00, 0x18, 0x18, 0x00, 0x18, 0x18, 0x00, 0x00, //
-	0x00, 0x18, 0x18, 0x00, 0x18, 0x18, 0x30, 0x00, //
-	0x00, 0x06, 0x18, 0x60, 0x18, 0x06, 0x00, 0x00, //
-	0x00, 0x00, 0x7e, 0x00, 0x7e, 0x00, 0x00, 0x00, //
-	0x00, 0x60, 0x18, 0x06, 0x18, 0x60, 0x00, 0x00, //
-	0x3c, 0x66, 0x06, 0x0c, 0x18, 0x00, 0x18, 0x00, //
-	0x3c, 0x66, 0x5a, 0x5a, 0x5e, 0x60, 0x3c, 0x00, //
-	0x3c, 0x66, 0x66, 0x7e, 0x66, 0x66, 0x00, 0x00, //
-	0x7c, 0x66, 0x7c, 0x66, 0x66, 0x7c, 0x00, 0x00, //
-	0x3c, 0x60, 0x60, 0x60, 0x60, 0x3c, 0x00, 0x00, //
-	0x78, 0x6c, 0x66, 0x66, 0x6c, 0x78, 0x00, 0x00, //
-	0x7e, 0x60, 0x78, 0x60, 0x60, 0x7e, 0x00, 0x00, //
-	0x7e, 0x60, 0x78, 0x60, 0x60, 0x60, 0x00, 0x00, //
-	0x3c, 0x66, 0x60, 0x6e, 0x66, 0x3e, 0x00, 0x00, //
-	0x66, 0x66, 0x7e, 0x66, 0x66, 0x66, 0x00, 0x00, //
-	0x3c, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, //
-	0x06, 0x06, 0x06, 0x06, 0x66, 0x3c, 0x00, 0x00, //
-	0xc6, 0xcc, 0xd8, 0xf8, 0xcc, 0xc6, 0x00, 0x00, //
-	0x60, 0x60, 0x60, 0x60, 0x60, 0x7c, 0x00, 0x00, //
-	0xc6, 0xee, 0xfe, 0xd6, 0xc6, 0xc6, 0x00, 0x00, //
-	0xc6, 0xe6, 0xf6, 0xde, 0xce, 0xc6, 0x00, 0x00, //
-	0x3c, 0x66, 0x66, 0x66, 0x66, 0x3c, 0x00, 0x00, //
-	0xfc, 0xc6, 0xc6, 0xfc, 0xc0, 0xc0, 0x00, 0x00, //
-	0x78, 0xcc, 0xcc, 0xcc, 0xdc, 0x7e, 0x00, 0x00, //
-	0x7c, 0x66, 0x66, 0x7c, 0x6c, 0x66, 0x00, 0x00, //
-	0x7c, 0xc6, 0x70, 0x1c, 0xc6, 0x7c, 0x00, 0x00, //
-	0x7e, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, //
-	0x66, 0x66, 0x66, 0x66, 0x66, 0x3c, 0x00, 0x00, //
-	0x66, 0x66, 0x66, 0x66, 0x3c, 0x18, 0x00, 0x00, //
-	0xc6, 0xc6, 0xd6, 0xfe, 0xee, 0xc6, 0x00, 0x00, //
-	0xc6, 0x6c, 0x38, 0x38, 0x6c, 0xc6, 0x00, 0x00, //
-	0xc6, 0x6c, 0x38, 0x30, 0x30, 0x30, 0x00, 0x00, //
-	0xfe, 0x0c, 0x18, 0x30, 0x60, 0xfe, 0x00, 0x00, //
-	0x3c, 0x30, 0x30, 0x30, 0x30, 0x30, 0x3c, 0x00, //
-	0xc0, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x02, 0x00, //
-	0x3c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x3c, 0x00, //
-	0x18, 0x3c, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, //
-	0x18, 0x18, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x3c, 0x06, 0x3e, 0x66, 0x3e, 0x00, 0x00, //
-	0x60, 0x60, 0x7c, 0x66, 0x66, 0x7c, 0x00, 0x00, //
-	0x00, 0x3c, 0x60, 0x60, 0x60, 0x3c, 0x00, 0x00, //
-	0x06, 0x06, 0x3e, 0x66, 0x66, 0x3e, 0x00, 0x00, //
-	0x00, 0x3c, 0x66, 0x7e, 0x60, 0x3c, 0x00, 0x00, //
-	0x1c, 0x30, 0x7c, 0x30, 0x30, 0x30, 0x00, 0x00, //
-	0x00, 0x3e, 0x66, 0x66, 0x3e, 0x06, 0x3c, 0x00, //
-	0x60, 0x60, 0x7c, 0x66, 0x66, 0x66, 0x00, 0x00, //
-	0x30, 0x00, 0x30, 0x30, 0x30, 0x18, 0x00, 0x00, //
-	0x0c, 0x00, 0x0c, 0x0c, 0x0c, 0x0c, 0x78, 0x00, //
-	0x60, 0x66, 0x6c, 0x78, 0x6c, 0x66, 0x00, 0x00, //
-	0x18, 0x18, 0x18, 0x18, 0x18, 0x0c, 0x00, 0x00, //
-	0x00, 0xec, 0xfe, 0xd6, 0xc6, 0xc6, 0x00, 0x00, //
-	0x00, 0x7c, 0x66, 0x66, 0x66, 0x66, 0x00, 0x00, //
-	0x00, 0x3c, 0x66, 0x66, 0x66, 0x3c, 0x00, 0x00, //
-	0x00, 0x7c, 0x66, 0x66, 0x7c, 0x60, 0x60, 0x00, //
-	0x00, 0x3e, 0x66, 0x66, 0x3e, 0x06, 0x06, 0x00, //
-	0x00, 0x7c, 0x66, 0x60, 0x60, 0x60, 0x00, 0x00, //
-	0x00, 0x3c, 0x60, 0x3c, 0x06, 0x7c, 0x00, 0x00, //
-	0x30, 0x30, 0x7c, 0x30, 0x30, 0x1c, 0x00, 0x00, //
-	0x00, 0x66, 0x66, 0x66, 0x66, 0x3e, 0x00, 0x00, //
-	0x00, 0x66, 0x66, 0x66, 0x3c, 0x18, 0x00, 0x00, //
-	0x00, 0xc6, 0xc6, 0xd6, 0xfe, 0x6c, 0x00, 0x00, //
-	0x00, 0xcc, 0x78, 0x30, 0x78, 0xcc, 0x00, 0x00, //
-	0x00, 0x66, 0x66, 0x66, 0x3c, 0x18, 0x30, 0x00, //
-	0x00, 0x7e, 0x0c, 0x18, 0x30, 0x7e, 0x00, 0x00, //
-	0x0c, 0x18, 0x18, 0x30, 0x18, 0x18, 0x0c, 0x00, //
-	0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, //
-	0x30, 0x18, 0x18, 0x0c, 0x18, 0x18, 0x30, 0x00, //
-	0x76, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x10, 0x38, 0x6c, 0xc6, 0xc6, 0xfe, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
-};
diff --git a/src/GameLib.c b/src/GameLib.c
deleted file mode 100644
index b9212b2..0000000
--- a/src/GameLib.c
+++ /dev/null
@@ -1,808 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "GameLib.h"
-
-#include <float.h>
-
-// Globals
-Entity *g_Entity                   = NULL;
-int *g_EntityFlag                  = NULL;
-int g_NumEntities                  = 0;
-int g_NumEntitiesAllocated         = 0;
-int g_EntitiesLock                 = 0;
-int g_EntitiesCompactate           = 0;
-void (*g_GameProcFunc)()           = NULL;
-void (*g_GamePostProcFunc)()       = NULL;
-void (*g_GamePreDrawFunc)(float f) = NULL;
-void (*g_GameDrawFunc)(float f)    = NULL;
-int g_ProcFt;
-int g_GameSize[2];
-int g_GamePos0[2];
-int g_GamePos1[2];
-int g_GamePosOffset[2];
-
-long long t_proc;
-long long t_col;
-long long t_over;
-long long t_postproc;
-long long t_draw;
-int fproc_count;
-int fdraw_count;
-
-typedef struct TParallaxBackground TParallaxBackground, *ParallaxBackground;
-struct TParallaxBackground {
-	DrawImg img;
-	int imgSize[2];
-	int imgOffset[2];
-	float parallaxFactor[2];
-};
-#define MaxParallaxBackgrounds 10
-TParallaxBackground g_ParallaxBackground[MaxParallaxBackgrounds];
-int g_NumParallaxBackgrounds = 0;
-
-TBucketGrid g_BucketGrid;
-
-/////////////////////////////
-// GameLib_Init
-//
-// Initializes the game.
-int GameLib_Init(int w, int h, char *title, int pFps, int fps) {
-	if (!Draw_Init(w, h, title, pFps, fps)) {
-		return (0);
-	}
-	if (!Input_Init()) {
-		return (0);
-	}
-	Audio_Init();
-
-	g_GameSize[0] = w;
-	g_GameSize[1] = h;
-	g_GamePos0[0] = 0;
-	g_GamePos0[1] = 0;
-	g_GamePos1[0] = 0;
-	g_GamePos1[1] = 0;
-
-	g_ProcFt = 1000 / pFps;
-
-	BucketGrid_Init(&g_BucketGrid, 1, 1, 64, 32, 32);
-
-	return (1);
-}
-
-/////////////////////////////
-// GameLib_PrepareSize
-//
-//
-void GameLib_PrepareSize(const float x1, const float y1, const float x2, const float y2) {
-	const float bucketSize = 64;
-
-	const float width       = x2 - x1;
-	const float height      = y2 - y1;
-	const int widthBuckets  = (int)ceilf(width / bucketSize);
-	const int heightBuckets = (int)ceilf(height / bucketSize);
-
-	BucketGrid_DeInit(&g_BucketGrid);
-	BucketGrid_Init(&g_BucketGrid, widthBuckets, heightBuckets, bucketSize, -x1, -y1);
-	for (int i = 0; i < g_NumEntities; i++) {
-		BucketGrid_AddItem(&g_BucketGrid, &g_Entity[i]->bbox);
-	}
-}
-
-/////////////////////////////
-// GameLib_CheckSize
-//
-//
-void GameLib_CheckSize() {
-	float xMin = FLT_MAX;
-	float yMin = FLT_MAX;
-	float xMax = FLT_MIN;
-	float yMax = FLT_MIN;
-	for (int i = 0; i < g_NumEntities; i++) {
-		if (g_Entity[i]->bbox.x1 < xMin)
-			xMin = g_Entity[i]->bbox.x1;
-		if (g_Entity[i]->bbox.x2 > xMax)
-			xMax = g_Entity[i]->bbox.x2;
-		if (g_Entity[i]->bbox.y1 < yMin)
-			yMin = g_Entity[i]->bbox.y1;
-		if (g_Entity[i]->bbox.y2 > yMax)
-			yMax = g_Entity[i]->bbox.y2;
-	}
-	GameLib_PrepareSize(xMin, yMin, xMax, yMax);
-}
-
-/////////////////////////////
-// GameLib_AddEntity
-//
-// Adds an entity to the game.
-void GameLib_AddEntity(Entity e) {
-	// Avoid duplications
-	for (int i = 0; i < g_NumEntities; i++) {
-		if (g_Entity[i] == e) {
-			return;
-		}
-	}
-
-	if (g_NumEntities >= g_NumEntitiesAllocated) {
-		Entity *entity_aux;
-		int *entity_flag_aux;
-		int i;
-
-		// Grow the array
-		if (g_NumEntitiesAllocated == 0) {
-			g_NumEntitiesAllocated = 32;
-		} else {
-			g_NumEntitiesAllocated *= 2;
-		}
-		entity_aux      = malloc(sizeof(Entity) * g_NumEntitiesAllocated);
-		entity_flag_aux = malloc(sizeof(int) * g_NumEntitiesAllocated);
-		for (i = 0; i < g_NumEntities; i++) {
-			entity_aux[i]      = g_Entity[i];
-			entity_flag_aux[i] = g_EntityFlag[i];
-		}
-		if (g_Entity) {
-			free(g_Entity);
-			free(g_EntityFlag);
-		}
-		g_Entity     = entity_aux;
-		g_EntityFlag = entity_flag_aux;
-	}
-
-	// Add the entity
-	g_Entity[g_NumEntities]     = e;
-	g_EntityFlag[g_NumEntities] = 1;
-	g_NumEntities++;
-
-	// Mark for light update
-	Entity_MarkUpdateLight(e, g_Entity, g_NumEntities);
-
-	Entity_CalcBBox(e);
-	if (BucketGrid_AddItem(&g_BucketGrid, &e->bbox) == 0) {
-		GameLib_CheckSize();
-	}
-
-	Entity_Init(e);
-}
-
-/////////////////////////////
-// GameLib_RemoveEntity
-//
-// removes the entity.
-int GameLib_RemoveEntity(Entity e) {
-	int i;
-	for (i = 0; i < g_NumEntities; i++) {
-		if (e == g_Entity[i]) {
-			// Mark to forget
-			g_EntityFlag[i] = -2;
-			g_EntitiesCompactate = 1;
-			return (i);
-		}
-	}
-	return (-1);
-}
-
-/////////////////////////////
-// GameLib_UnrefEntity
-//
-// removes the reference to the entity.
-int GameLib_UnrefEntity(Entity e) {
-	int i;
-	for (i = 0; i < g_NumEntities; i++) {
-		if (e == g_Entity[i]) {
-			// Mark or unref
-			if (g_EntitiesLock) {
-				g_EntityFlag[i] = -2;
-			} else {
-				g_Entity[i]     = NULL;
-				g_EntityFlag[i] = 0;
-			}
-			g_EntitiesCompactate = 1;
-
-			// Mark for light update
-			Entity_MarkUpdateLight(e, g_Entity, g_NumEntities);
-			return (i);
-		}
-	}
-	return (-1);
-}
-
-/////////////////////////////
-// GameLib_DelEntity
-//
-// Adds an entity to the game.
-int GameLib_DelEntity(Entity e) {
-	int i;
-	if ((i = GameLib_UnrefEntity(e)) == -1) {
-		return (0);
-	}
-	if (g_EntitiesLock) {
-		// Delete latter
-		g_Entity[i]     = e;
-		g_EntityFlag[i] = -1;
-	} else {
-		// Delete now
-		BucketGrid_RemoveItem(&g_BucketGrid, &g_Entity[i]->bbox);
-		Entity_Destroy(e);
-	}
-	return (1);
-}
-
-/////////////////////////////
-// GameLib_Compactate
-//
-//
-void GameLib_Compactate() {
-	int i, j;
-	j = 0;
-	if (!g_EntitiesCompactate) {
-		return;
-	}
-	for (i = 0; i < g_NumEntities; i++) {
-		if (!g_Entity[i] || g_EntityFlag[i] == -2) {
-			continue;
-		}
-		if (g_EntityFlag[i] == -1) {
-			BucketGrid_RemoveItem(&g_BucketGrid, &g_Entity[i]->bbox);
-			Entity_Destroy(g_Entity[i]);
-			continue;
-		}
-		if (i > j) {
-			g_Entity[j]     = g_Entity[i];
-			g_EntityFlag[j] = g_EntityFlag[i];
-		}
-		j++;
-	}
-	g_NumEntities        = j;
-	g_EntitiesCompactate = 0;
-}
-
-/////////////////////////////
-// GameLib_ProcLoop
-//
-// Process the loop.
-void GameLib_ProcLoop(void *data) {
-	int i, j;
-	int repeat;
-	long long time;
-
-	// Step the gamePosition
-	g_GamePos0[0] = g_GamePos1[0] + g_GamePosOffset[0];
-	g_GamePos0[1] = g_GamePos1[1] + g_GamePosOffset[1];
-
-	// Process
-	time           = Time_GetTime();
-	g_EntitiesLock = 1;
-	if (g_GameProcFunc) {
-		g_GameProcFunc();
-	}
-	for (i = 0; i < g_NumEntities; i++) {
-		if (!g_Entity[i]) {
-			continue;
-		}
-		Entity_Process(g_Entity[i], g_ProcFt);
-	}
-	GameLib_Compactate();
-	g_EntitiesLock = 0;
-
-	if (BucketGrid_ProcessChanged(&g_BucketGrid) == 0) {
-		Print("Rebuild BucketGrid");
-		BucketGrid_Clean(&g_BucketGrid);
-		for (int i = 0; i < g_NumEntities; i++) {
-			BucketGrid_AddItem(&g_BucketGrid, &g_Entity[i]->bbox);
-		}
-	}
-
-	t_proc += Time_GetTime() - time;
-
-	// Collisions between entities
-	time           = Time_GetTime();
-	g_EntitiesLock = 1;
-	int count      = 0;
-	int maxCount   = 50;
-	do {
-		repeat                 = 0;
-		CollisionInfo collInfo = NULL;
-		for (i = 0; i < g_NumEntities; i++) {
-			Entity ent = g_Entity[i];
-			if (!(ent->flags & EntityFlag_Collision) || ent->mass < 0.0f) {
-				continue;
-			}
-			if (ent->vel[0] <= 0.0f && ent->vel[0] >= -0.0f && ent->vel[1] <= 0.0f && ent->vel[1] >= -0.0f) {
-				continue;
-			}
-			TBucket bucket;
-			BucketGrid_Query(&g_BucketGrid, &ent->bbox, &bucket);
-			for (j = 0; j < bucket.count; j++) {
-				Entity entCollision = bucket.bbox[j]->parent;
-				if (ent == entCollision || !(entCollision->flags & EntityFlag_Collision) ||
-				    CollisionInfo_CheckRepetition(collInfo, ent, entCollision)) {
-					continue;
-				}
-				Entity_CheckCollision(ent, entCollision, &collInfo);
-			}
-		}
-		if (Entity_CollisionInfoResponse(collInfo)) {
-			repeat = 1;
-		}
-		CollisionInfo_Destroy(&collInfo);
-		count++;
-	} while (repeat && count < maxCount);
-
-	// Stop remaining collisions
-	if (count >= maxCount) {
-		for (i = 0; i < g_NumEntities; i++) {
-			Entity ent = g_Entity[i];
-			if (!(ent->flags & EntityFlag_Collision) || ent->mass < 0.0f) {
-				continue;
-			}
-			TBucket bucket;
-			BucketGrid_Query(&g_BucketGrid, &ent->bbox, &bucket);
-			for (j = 0; j < bucket.count; j++) {
-				Entity entCollision = bucket.bbox[j]->parent;
-				if (ent == entCollision || !(entCollision->flags & EntityFlag_Collision)) {
-					continue;
-				}
-				if (Entity_CheckCollision(ent, entCollision, NULL)) {
-					vec2_set(ent->vel, 0, 0);
-					Entity_CalcBBox(ent);
-					vec2_set(entCollision->vel, 0, 0);
-					Entity_CalcBBox(entCollision);
-				}
-			}
-		}
-	}
-	GameLib_Compactate();
-	g_EntitiesLock = 0;
-	t_col += Time_GetTime() - time;
-
-	// Process Overlaps
-	time           = Time_GetTime();
-	g_EntitiesLock = 1;
-	for (i = 0; i < g_NumEntities; i++) {
-		Entity ent = g_Entity[i];
-		if (!(ent->flags & EntityFlag_Overlap) || ent->mass < 0.0f) {
-			continue;
-		}
-		TBucket bucket;
-		BucketGrid_Query(&g_BucketGrid, &ent->bbox, &bucket);
-		for (j = 0; j < bucket.count; j++) {
-			Entity entCollision = bucket.bbox[j]->parent;
-			if (!(entCollision->flags & EntityFlag_Overlap) || ent == entCollision) {
-				continue;
-			}
-			Entity_Overlaps(ent, entCollision);
-		}
-	}
-	GameLib_Compactate();
-	g_EntitiesLock = 0;
-	t_over += Time_GetTime() - time;
-
-	// Sort
-	int n = g_NumEntities;
-	do {
-		int n2 = 0;
-		for (i = 1; i < n; i++) {
-			Entity ent1 = g_Entity[i - 1];
-			Entity ent2 = g_Entity[i];
-			int swap    = 0;
-			if (ent1->zorder > ent2->zorder) {
-				// Lower level
-				swap = 1;
-			} else if (ent1->zorder < ent2->zorder) {
-				// Upper level
-			} else {
-				// Same level
-				const float y1 = ent1->pos[1] + ent1->sortYOffset;
-				const float y2 = ent2->pos[1] + ent2->sortYOffset;
-				if (y1 == y2) {
-					if (ent1->pos[0] < ent2->pos[0]) {
-						swap = 1;
-					}
-				} else if (y1 > y2) {
-					swap = 1;
-				}
-			}
-			if (swap) {
-				Entity ent      = g_Entity[i];
-				g_Entity[i]     = g_Entity[i - 1];
-				g_Entity[i - 1] = ent;
-				n2              = i;
-			}
-		}
-		n = n2;
-	} while (n > 0);
-
-	// PostProcess
-	time           = Time_GetTime();
-	g_EntitiesLock = 1;
-	for (i = 0; i < g_NumEntities; i++) {
-		Entity_PostProcess(g_Entity[i], g_ProcFt);
-		if (Entity_IsMoving(g_Entity[i])) {
-			Entity_MarkUpdateLight(g_Entity[i], g_Entity, g_NumEntities);
-		}
-	}
-	if (g_GamePostProcFunc) {
-		g_GamePostProcFunc();
-	}
-	GameLib_Compactate();
-	g_EntitiesLock = 0;
-	t_postproc += Time_GetTime() - time;
-
-	fproc_count++;
-}
-
-/////////////////////////////
-// GameLib_DrawLoop
-//
-//
-void GameLib_DrawLoop(void *data, float f) {
-	long long time;
-	int i;
-	int game_pos[2];
-
-	GameLib_GetPosInstant(game_pos, f);
-
-	time = Time_GetTime();
-
-	// PreDraw
-	if (g_GamePreDrawFunc) {
-		g_GamePreDrawFunc(f);
-	} else {
-		if (g_NumParallaxBackgrounds == 0) {
-			// Clean screen
-			Draw_Clean(0, 0, 0);
-		}
-	}
-
-	// Draw parallax backgrounds
-	for (i = 0; i < g_NumParallaxBackgrounds; i++) {
-		Draw_ImgParallax(
-			g_ParallaxBackground[i].img,
-			g_ParallaxBackground[i].imgSize,
-			g_ParallaxBackground[i].imgOffset,
-			g_ParallaxBackground[i].parallaxFactor,
-			game_pos,
-			g_GameSize);
-	}
-
-	// Draw entities
-	GameLib_Compactate();
-	for (i = 0; i < g_NumEntities; i++) {
-		Entity e = g_Entity[i];
-
-		// Check visibility
-		if (!Entity_IsVisible(e, game_pos[0], game_pos[1], g_GameSize[0], g_GameSize[1])) {
-			continue;
-		}
-
-		// Update illumination of this entity
-		if (Entity_IsUpdateLight(e)) {
-			Entity_Iluminate(e, g_Entity, g_NumEntities);
-		}
-
-		Entity_Draw(e, -game_pos[0], -game_pos[1], f);
-	}
-	Draw_SetColor(1, 1, 1, 1);
-	g_EntitiesLock = 1;
-	if (g_GameDrawFunc) {
-		g_GameDrawFunc(f);
-	}
-	GameLib_Compactate();
-	g_EntitiesLock = 0;
-
-	t_draw += Time_GetTime() - time;
-
-	fdraw_count++;
-
-#ifndef EMSCRIPTEN
-	if (Input_GetKey(InputKey_Screenshot) == InputKey_Pressed) {
-		// Screenshot key
-		char strFile[255];
-		int idx = -1;
-		do {
-			idx++;
-			snprintf(strFile, 255, "shot-%04d.png", idx);
-		} while (access(strFile, F_OK) != -1);
-		Draw_SaveScreenshot(strFile);
-		Print("Screenshot saved \"%s\"\n", strFile);
-	}
-#endif // EMSCRIPTEN
-
-	if (Input_GetKey(InputKey_DumpProfiling) == InputKey_Pressed && fproc_count > 0 && fdraw_count > 0) {
-		Print("Profiling:::::::::\n");
-		Print("t_proc.....:%6lldus\n", t_proc / fproc_count);
-		Print("t_col......:%6lldus\n", t_col / fproc_count);
-		Print("t_over.....:%6lldus\n", t_over / fproc_count);
-		Print("t_postproc.:%6lldus\n", t_postproc / fproc_count);
-		Print("t_draw.....:%6lldus\n", t_draw / fdraw_count);
-		Print("n_ents.....:%6lld\n", g_NumEntities);
-		t_proc      = 0;
-		t_col       = 0;
-		t_over      = 0;
-		t_postproc  = 0;
-		t_draw      = 0;
-		fproc_count = 0;
-		fdraw_count = 0;
-	}
-}
-
-/////////////////////////////
-// GameLib_Loop
-//
-// Loops the game.
-void GameLib_Loop(void (*gameProc)(), void (*gamePostProc)(), void (*gamePreDraw)(float f), void (*gameDraw)(float f)) {
-	g_GameProcFunc     = gameProc;
-	g_GamePostProcFunc = gamePostProc;
-	g_GamePreDrawFunc  = gamePreDraw;
-	g_GameDrawFunc     = gameDraw;
-	t_proc             = 0;
-	t_col              = 0;
-	t_over             = 0;
-	t_postproc         = 0;
-	t_draw             = 0;
-	fproc_count        = 0;
-	fdraw_count        = 0;
-	Draw_Loop(GameLib_ProcLoop, GameLib_DrawLoop, NULL);
-}
-
-/////////////////////////////
-// GameLib_GetPos
-// GameLib_SetPos
-// GameLib_UpdatePos
-// GameLib_SetPos
-// GameLib_GetPosInstant
-// GameLib_SetPosOffset
-//
-//
-void GameLib_GetPos(int pos[2]) {
-	pos[0] = g_GamePos1[0];
-	pos[1] = g_GamePos1[1];
-}
-void GameLib_SetPos(const int pos[2]) {
-	g_GamePos0[0] = pos[0];
-	g_GamePos0[1] = pos[1];
-	g_GamePos1[0] = pos[0];
-	g_GamePos1[1] = pos[1];
-}
-void GameLib_UpdatePos(const int pos[2]) {
-	g_GamePos1[0] = pos[0];
-	g_GamePos1[1] = pos[1];
-}
-void GameLib_GetSize(int size[2]) {
-	size[0] = g_GameSize[0];
-	size[1] = g_GameSize[1];
-}
-void GameLib_GetPosInstant(int pos[2], float f) {
-	pos[0] = g_GamePos0[0] + f * ((g_GamePos1[0] + g_GamePosOffset[0]) - g_GamePos0[0]);
-	pos[1] = g_GamePos0[1] + f * ((g_GamePos1[1] + g_GamePosOffset[1]) - g_GamePos0[1]);
-}
-void GameLib_SetPosOffset(const int posOffset[2]) {
-	g_GamePosOffset[0] = posOffset[0];
-	g_GamePosOffset[1] = posOffset[1];
-}
-
-/////////////////////////////
-// GameLib_MoveToPos
-// GameLib_MoveToPosH
-// GameLib_MoveToPosV
-//
-//
-void GameLib_MoveToPos(vec2 pos, float f) {
-	GameLib_MoveToPosH(pos, f);
-	GameLib_MoveToPosV(pos, f);
-}
-void GameLib_MoveToPosH(const vec2 pos, const float f) {
-	g_GamePos1[0] = g_GamePos1[0] + (pos[0] - (g_GamePos1[0] + (g_GameSize[0] / 2.0f))) * f;
-}
-void GameLib_MoveToPosV(const vec2 pos, const float f) {
-	g_GamePos1[1] = g_GamePos1[1] + (pos[1] - (g_GamePos1[1] + (g_GameSize[1] / 2.0f))) * f;
-}
-
-/////////////////////////////
-// GameLib_ForEachEn
-//
-// Deletes every entity.
-void GameLib_DelEnts() {
-	for (int i = 0; i < g_NumEntities; i++) {
-		if (!g_Entity[i]) {
-			continue;
-		}
-		Entity_Destroy(g_Entity[i]);
-	}
-	g_NumEntities = 0;
-	BucketGrid_DeInit(&g_BucketGrid);
-	BucketGrid_Init(&g_BucketGrid, 1, 1, 100, 50, 50);
-}
-
-/////////////////////////////
-// GameLib_ForEachEn
-//
-// Iterates every entity.
-void GameLib_ForEachEnt(int (*func)(Entity ent)) {
-	for (int i = 0; i < g_NumEntities; i++) {
-		if (!g_Entity[i]) {
-			continue;
-		}
-		if (!func(g_Entity[i])) {
-			break;
-		}
-	}
-}
-
-/////////////////////////////
-// GameLib_SearchEnt
-//
-// Searches through the entities.
-Entity GameLib_SearchEnt(int (*func)(Entity ent, void *d), void *d) {
-	Entity ent = NULL;
-	for (int i = 0; i < g_NumEntities; i++) {
-		if (!g_Entity[i]) {
-			continue;
-		}
-		if (func(g_Entity[i], d)) {
-			ent = g_Entity[i];
-			break;
-		}
-	}
-	return ent;
-}
-
-/////////////////////////////
-// GameLib_SearchEntInArea
-//
-// Searches through the entities, in an area.
-Entity GameLib_SearchEntInArea(int (*func)(Entity ent, void *d), void *d, BBox area) {
-	TBucket searchBucket;
-	BucketGrid_Query(&g_BucketGrid, area, &searchBucket);
-	Entity ent = NULL;
-	for (int i = 0; i < searchBucket.count; i++) {
-		ent = searchBucket.bbox[i]->parent;
-		if (!ent) {
-			continue;
-		}
-		if (func(ent, d)) {
-			break;
-		}
-	}
-	return ent;
-}
-
-/////////////////////////////
-// GameLib_EntityCustomCheckCollision
-//
-//
-int GameLib_EntityCustomCheckCollision(Entity ent, vec2 vel) {
-	int collision          = 0;
-	CollisionInfo collInfo = NULL;
-	vec2 originalVel;
-
-	vec2_copy(originalVel, ent->vel);
-	vec2_copy(ent->vel, vel);
-	Entity_CalcBBox(ent);
-
-	for (int j = 0; j < g_NumEntities; j++) {
-		if (!(g_Entity[j]->flags & EntityFlag_Collision) || !Entity_BBoxIntersect(ent, g_Entity[j])) {
-			continue;
-		}
-		Entity_CheckCollision(ent, g_Entity[j], &collInfo);
-		if (collInfo != NULL) {
-			collision = 1;
-			break;
-		}
-	}
-
-	vec2_copy(ent->vel, originalVel);
-	Entity_CalcBBox(ent);
-
-	CollisionInfo_Destroy(&collInfo);
-	return collision;
-}
-
-/////////////////////////////
-// GameLib_PlaySound
-//
-//
-void GameLib_PlaySound(AudioSnd snd, int x, int y) {
-	int r;
-
-	// Get the screen context
-	int cx = g_GamePos1[0] + g_GameSize[0] / 2;
-	int cy = g_GamePos1[1] + g_GameSize[1] / 2;
-	if (g_GameSize[0] > g_GameSize[1]) {
-		r = g_GameSize[0] / 2;
-	} else {
-		r = g_GameSize[1] / 2;
-	}
-	r       = r * 1.2f;
-	int off = r / 10.0f;
-
-	// Calculate volumes
-	float dx     = x - (cx + off);
-	float dy     = y - (cy);
-	float vRight = 1.0f - (sqrtf(dx * dx + dy * dy) / (float)r);
-	dx           = x - (cx - off);
-	dy           = y - (cy);
-	float vLeft  = 1.0f - (sqrtf(dx * dx + dy * dy) / (float)r);
-
-	// Clamp to 0
-	if (vLeft < 0.0f) {
-		vLeft = 0.0f;
-	}
-	if (vRight < 0.0f) {
-		vRight = 0.0f;
-	}
-	if (vLeft <= 0.0f && vRight <= 0.0f) {
-		return;
-	}
-
-	// PLAY!
-	Audio_PlaySound(snd, vLeft, vRight, 0);
-}
-
-/////////////////////////////
-// GameLib_PlayLoopingSound
-//
-//
-AudioChn GameLib_PlayLoopingSound(AudioSnd snd) {
-	// PLAY!
-	return Audio_PlaySound(snd, 1.0f, 1.0f, 1);
-}
-
-/////////////////////////////
-// GameLib_EntitySetLight
-//
-//
-void GameLib_EntitySetLight(Entity e, float r, float g, float b, float rad) {
-	if (Entity_IsLight(e)) {
-		Entity_MarkUpdateLight(e, g_Entity, g_NumEntities);
-		Entity_SetLight(e, r, g, b, rad);
-		Entity_MarkUpdateLight(e, g_Entity, g_NumEntities);
-	} else {
-		Entity_SetLight(e, r, g, b, rad);
-	}
-}
-
-/////////////////////////////
-// GameLib_ConvertScreenPositionToGamePosition
-//
-//
-void GameLib_ConvertScreenPositionToGamePosition(vec2 screenPos, vec2 gamePos, float f) {
-	int game_pos[2];
-
-	game_pos[0] = g_GamePos0[0] + f * ((g_GamePos1[0] + g_GamePosOffset[0]) - g_GamePos0[0]);
-	game_pos[1] = g_GamePos0[1] + f * ((g_GamePos1[1] + g_GamePosOffset[1]) - g_GamePos0[1]);
-
-	gamePos[0] = (screenPos[0] * g_GameSize[0]) + game_pos[0];
-	gamePos[1] = (screenPos[1] * g_GameSize[1]) + game_pos[1];
-}
-
-/////////////////////////////
-// GameLib_AddParallaxBackground
-//
-//
-void GameLib_AddParallaxBackground(DrawImg img, int imgSize[2], int imgOffset[2], float parallaxFactor[2]) {
-	const int idx = g_NumParallaxBackgrounds;
-	if ((idx + 1) >= MaxParallaxBackgrounds) {
-		Print("GameLib: Can't add parallaxBackground, limit reached.");
-		return;
-	}
-	g_ParallaxBackground[idx].img               = img;
-	g_ParallaxBackground[idx].imgSize[0]        = imgSize[0];
-	g_ParallaxBackground[idx].imgSize[1]        = imgSize[1];
-	g_ParallaxBackground[idx].imgOffset[0]      = imgOffset[0];
-	g_ParallaxBackground[idx].imgOffset[1]      = imgOffset[1];
-	g_ParallaxBackground[idx].parallaxFactor[0] = parallaxFactor[0];
-	g_ParallaxBackground[idx].parallaxFactor[1] = parallaxFactor[1];
-	g_NumParallaxBackgrounds++;
-}
-
-/////////////////////////////
-// GameLib_CleanParallaxBackgrounds
-//
-//
-void GameLib_CleanParallaxBackgrounds() { g_NumParallaxBackgrounds = 0; }
diff --git a/src/GameLib.h b/src/GameLib.h
deleted file mode 100644
index 2cc7929..0000000
--- a/src/GameLib.h
+++ /dev/null
@@ -1,154 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifndef GameLib_H
-#define GameLib_H
-
-#include "Anim.h"
-#include "Audio.h"
-#include "Draw.h"
-#include "Entity.h"
-#include "Input.h"
-#include "TimeUtils.h"
-#include "Util.h"
-
-/////////////////////////////
-// GameLib_Init
-//
-// Initializes the game.
-int GameLib_Init(int w, int h, char *title, int pFps, int fps);
-
-/////////////////////////////
-// GameLib_PrepareSize
-//
-//
-void GameLib_PrepareSize(float x1, float y1, float x2, float y2);
-
-/////////////////////////////
-// GameLib_CheckSize
-//
-//
-void GameLib_CheckSize();
-
-/////////////////////////////
-// GameLib_AddEntity
-//
-// Adds an entity to the game.
-void GameLib_AddEntity(Entity e);
-
-/////////////////////////////
-// GameLib_RemoveEntity
-//
-// removes the entity.
-int GameLib_RemoveEntity(Entity e);
-
-/////////////////////////////
-// GameLib_UnrefEntity
-//
-// removes the reference to the entity.
-int GameLib_UnrefEntity(Entity e);
-
-/////////////////////////////
-// GameLib_DelEntity
-//
-// Adds an entity to the game.
-int GameLib_DelEntity(Entity e);
-
-/////////////////////////////
-// GameLib_Loop
-//
-// Loops the game.
-void GameLib_Loop(void (*gameProc)(), void (*gamePostProc)(), void (*gamePreDraw)(float f), void (*gameDraw)(float f));
-
-/////////////////////////////
-// GameLib_GetPos
-// GameLib_SetPos
-// GameLib_UpdatePos
-// GameLib_SetPos
-// GameLib_GetPosInstant
-// GameLib_SetPosOffset
-//
-//
-void GameLib_GetPos(int pos[2]);
-void GameLib_SetPos(const int pos[2]);
-void GameLib_UpdatePos(const int pos[2]);
-void GameLib_GetSize(int size[2]);
-void GameLib_GetPosInstant(int pos[2], float f);
-void GameLib_SetPosOffset(const int posOffset[2]);
-
-/////////////////////////////
-// GameLib_MoveToPos
-// GameLib_MoveToPosH
-// GameLib_MoveToPosV
-//
-//
-void GameLib_MoveToPos(vec2 pos, float f);
-void GameLib_MoveToPosH(const vec2 pos, float f);
-void GameLib_MoveToPosV(const vec2 pos, float f);
-
-/////////////////////////////
-// GameLib_ForEachEn
-//
-// Deletes every entity.
-void GameLib_DelEnts();
-
-/////////////////////////////
-// GameLib_ForEachEnt
-//
-// Iterates every entity.
-void GameLib_ForEachEnt(int (*func)(Entity ent));
-
-/////////////////////////////
-// GameLib_SearchEnt
-//
-// Searches through the entities.
-Entity GameLib_SearchEnt(int (*func)(Entity ent, void *d), void *d);
-
-/////////////////////////////
-// GameLib_SearchEntInArea
-//
-// Searches through the entities, in an area.
-Entity GameLib_SearchEntInArea(int (*func)(Entity ent, void *d), void *d, BBox area);
-
-/////////////////////////////
-// GameLib_EntityCustomCheckCollision
-//
-//
-int GameLib_EntityCustomCheckCollision(Entity ent, vec2 vel);
-
-/////////////////////////////
-// GameLib_PlaySound
-//
-// Play a sound position aware.
-void GameLib_PlaySound(AudioSnd snd, int x, int y);
-
-/////////////////////////////
-// GameLib_PlayLoopingSound
-//
-// Play a sound looping
-AudioChn GameLib_PlayLoopingSound(AudioSnd snd);
-
-/////////////////////////////
-// GameLib_EntitySetLight
-//
-//
-void GameLib_EntitySetLight(Entity e, float r, float g, float b, float rad);
-
-/////////////////////////////
-// GameLib_ConvertScreenPositionToGamePosition
-//
-//
-void GameLib_ConvertScreenPositionToGamePosition(vec2 screenPos, vec2 gamePos, float f);
-
-/////////////////////////////
-// GameLib_AddParallaxBackground
-//
-//
-void GameLib_AddParallaxBackground(DrawImg img, int imgSize[2], int imgOffset[2], float parallaxFactor[2]);
-
-/////////////////////////////
-// GameLib_CleanParallaxBackgrounds
-//
-//
-void GameLib_CleanParallaxBackgrounds();
-
-#endif
diff --git a/src/Input.c b/src/Input.c
deleted file mode 100644
index 136bf4c..0000000
--- a/src/Input.c
+++ /dev/null
@@ -1,226 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#include <SDL.h>
-#include <math.h>
-#ifdef EMSCRIPTEN
-#define SDL_GetKeyState SDL_GetKeyboardState
-#endif
-
-#include "Input.h"
-#include "Util.h"
-
-// Globals
-InputKeyStatus _keys[InputKey_Max];
-
-int _pointerDown = 0;
-float _pointerX  = 0;
-float _pointerY  = 0;
-
-int _clicked            = 0;
-float _clickedPositionX = 0;
-float _clickedPositionY = 0;
-
-/////////////////////////////
-// Input_Init
-//
-// Initializes the game input.
-int Input_Init() {
-	int i;
-
-	// Mark released all the keys
-	for (i = 0; i < InputKey_Max; i++) {
-		_keys[i] = InputKey_Released;
-	}
-
-	return (1);
-}
-
-/////////////////////////////
-// Input_Frame
-//
-// Notify a frame update to the input subsystem.
-void Input_Frame() {
-	Uint8 *keys;
-
-	// Get keyboard state
-	keys = (Uint8 *)SDL_GetKeyboardState(NULL);
-
-	// Process Keys
-	Input_SetKey(InputKey_Action1, keys[SDL_SCANCODE_Z] | keys[SDL_SCANCODE_O]);
-	Input_SetKey(InputKey_Action2, keys[SDL_SCANCODE_X] | keys[SDL_SCANCODE_P]);
-	Input_SetKey(InputKey_Up, keys[SDL_SCANCODE_UP] | keys[SDL_SCANCODE_W]);
-	Input_SetKey(InputKey_Down, keys[SDL_SCANCODE_DOWN] | keys[SDL_SCANCODE_S]);
-	Input_SetKey(InputKey_Left, keys[SDL_SCANCODE_LEFT] | keys[SDL_SCANCODE_A]);
-	Input_SetKey(InputKey_Right, keys[SDL_SCANCODE_RIGHT] | keys[SDL_SCANCODE_D]);
-	Input_SetKey(InputKey_Jump, keys[SDL_SCANCODE_SPACE]);
-	Input_SetKey(
-		InputKey_Continue,
-		keys[SDL_SCANCODE_RETURN] | keys[SDL_SCANCODE_RETURN2] | keys[SDL_SCANCODE_KP_ENTER] | _pointerDown);
-
-	Input_SetKey(InputKey_DumpProfiling, keys[SDL_SCANCODE_M]);
-	Input_SetKey(InputKey_Screenshot, keys[SDL_SCANCODE_F12]);
-}
-
-/////////////////////////////
-// Input_PostFrame
-//
-// Notify a frame update to the input subsystem.
-void Input_PostFrame() {
-	Input_SetKey(InputKey_Exit, 0);
-	_clicked = 0;
-}
-
-/////////////////////////////
-// Input_SetKey
-//
-// Notify a key press to the input subsystem.
-void Input_SetKey(InputKey key, int status) {
-	if (!status) {
-		_keys[key] = InputKey_Released;
-	} else {
-		if (_keys[key] >= InputKey_Pressed) {
-			_keys[key] = InputKey_Holded;
-		} else {
-			_keys[key] = InputKey_Pressed;
-		}
-	}
-}
-
-/////////////////////////////
-// Input_GetKey
-//
-// Reports a the status of a key.
-InputKeyStatus Input_GetKey(InputKey key) { return (_keys[key]); }
-
-/////////////////////////////
-// Input_SetPointerPosition
-//
-void Input_SetPointerPosition(float x, float y) {
-	_pointerX = x;
-	_pointerY = y;
-}
-
-/////////////////////////////
-// Input_SetPointerDown
-//
-void Input_SetPointerDown(int pointerDown) {
-	if (pointerDown == 0 && _pointerDown == 1) {
-		_clicked          = 1;
-		_clickedPositionX = _pointerX;
-		_clickedPositionY = _pointerY;
-	}
-	_pointerDown = pointerDown;
-}
-
-/////////////////////////////
-// Input_GetPointerDown
-//
-int Input_GetPointerDown() { return _pointerDown; }
-
-/////////////////////////////
-// Input_GetPointerPosition
-//
-int Input_GetPointerPosition(vec2 pointer) {
-	pointer[0] = _pointerX;
-	pointer[1] = _pointerY;
-	return _pointerDown;
-}
-
-/////////////////////////////
-// Input_GetClickedPosition
-//
-int Input_GetClickedPosition(vec2 clickPosition) {
-	clickPosition[0] = _clickedPositionX;
-	clickPosition[1] = _clickedPositionY;
-	return _clicked;
-}
-
-/////////////////////////////
-// Input_AnyKey
-//
-//
-int Input_AnyKey() {
-	int i;
-	for (i = 0; i < InputKey_Max; i++) {
-		if (_keys[i] == InputKey_Pressed) {
-			return (1);
-		}
-	}
-	return (0);
-}
-
-/////////////////////////////
-// Input_GetDir
-//
-// Reports the direction of the dpad and mouse.
-int Input_GetDir(vec2 dir) {
-	float vlen;
-	Uint8 buttons;
-	int mx, my;
-	float dlen;
-	extern int g_Width, g_Height;
-
-	// Get mouse state
-	buttons = SDL_GetMouseState(&mx, &my);
-	if (buttons) {
-		// Use the mouse
-		vec2_set(dir, mx - (g_Width / 2), my - (g_Height / 2.0f));
-		dlen = 1.0f / sqrtf(vec2_dot(dir, dir));
-		vec2_scale(dir, dir, dlen);
-		return (1);
-	} else {
-		// Use the keyboar
-		vec2_set(dir, 0.0f, 0.0f);
-		if (Input_GetKey(InputKey_Up)) {
-			dir[1] -= 1.0f;
-		}
-		if (Input_GetKey(InputKey_Down)) {
-			dir[1] += 1.0f;
-		}
-		if (Input_GetKey(InputKey_Left)) {
-			dir[0] -= 1.0f;
-		}
-		if (Input_GetKey(InputKey_Right)) {
-			dir[0] += 1.0f;
-		}
-		vlen = vec2_dot(dir, dir);
-		if (vlen > 0.0f) {
-			vlen = sqrtf(vlen);
-			vec2_scale(dir, dir, 1.0f / vlen);
-			return (1);
-		} else {
-			return (0);
-		}
-	}
-}
-
-/////////////////////////////
-// Input_GetKeyDir
-//
-// Reports the direction of the dpad.
-int Input_GetKeyDir(vec2 dir) {
-	float vlen;
-
-	// Use the keyboard
-	vec2_set(dir, 0.0f, 0.0f);
-	if (Input_GetKey(InputKey_Up)) {
-		dir[1] -= 1.0f;
-	}
-	if (Input_GetKey(InputKey_Down)) {
-		dir[1] += 1.0f;
-	}
-	if (Input_GetKey(InputKey_Left)) {
-		dir[0] -= 1.0f;
-	}
-	if (Input_GetKey(InputKey_Right)) {
-		dir[0] += 1.0f;
-	}
-	vlen = vec2_dot(dir, dir);
-	if (vlen > 0.0f) {
-		vlen = sqrtf(vlen);
-		vec2_scale(dir, dir, 1.0f / vlen);
-		return (1);
-	} else {
-		return (0);
-	}
-}
diff --git a/src/Input.h b/src/Input.h
deleted file mode 100644
index 9d15c17..0000000
--- a/src/Input.h
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifndef Input_H
-#define Input_H
-
-#include "Util.h"
-
-/////////////////////////////
-// Input_Init
-//
-// Initializes the game input.
-int Input_Init();
-
-/////////////////////////////
-// Input_Frame
-//
-// Notify a frame update to the input subsystem.
-void Input_Frame();
-
-/////////////////////////////
-// Input_PostFrame
-//
-// Notify a frame update end to the input subsystem.
-void Input_PostFrame();
-
-////////////////////////////////////////////////
-// InputKey //
-//////////////
-// Key enumeration.
-typedef enum {
-	InputKey_Action1,
-	InputKey_Action2,
-	InputKey_Up,
-	InputKey_Down,
-	InputKey_Left,
-	InputKey_Right,
-	InputKey_Jump,
-	InputKey_Continue,
-	InputKey_Exit,
-
-	InputKey_DumpProfiling,
-	InputKey_Screenshot,
-
-	InputKey_Max
-} InputKey;
-
-/////////////////////////////
-// Input_SetKey
-//
-// Notify a key press to the input subsystem.
-void Input_SetKey(InputKey key, int status);
-
-////////////////////////////////////////////////
-// InputKeyStatus //
-///////////////////
-// Key status enumeration.
-typedef enum { InputKey_Released, InputKey_Pressed, InputKey_Holded } InputKeyStatus;
-
-/////////////////////////////
-// Input_GetKey
-//
-// Reports a the status of a key.
-InputKeyStatus Input_GetKey(InputKey key);
-
-/////////////////////////////
-// Input_SetPointerPosition
-//
-void Input_SetPointerPosition(float x, float y);
-
-/////////////////////////////
-// Input_SetPointerDown
-//
-void Input_SetPointerDown(int pointerDown);
-
-/////////////////////////////
-// Input_GetPointerDown
-//
-int Input_GetPointerDown();
-
-/////////////////////////////
-// Input_GetPointerPosition
-//
-int Input_GetPointerPosition(vec2 pointer);
-
-/////////////////////////////
-// Input_GetClickedPosition
-//
-int Input_GetClickedPosition(vec2 clickPosition);
-
-/////////////////////////////
-// Input_AnyKey
-//
-//
-int Input_AnyKey();
-
-/////////////////////////////
-// Input_GetDir
-//
-// Reports the direction of the dpad and mouse.
-int Input_GetDir(vec2 dir);
-
-/////////////////////////////
-// Input_GetKeyDir
-//
-// Reports the direction of the dpad.
-int Input_GetKeyDir(vec2 dir);
-
-#endif
diff --git a/src/QuadArray2D.c b/src/QuadArray2D.c
deleted file mode 100644
index bdd9041..0000000
--- a/src/QuadArray2D.c
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (C) 2013-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "QuadArray2D.h"
-
-QuadArray2D QuadArray2D_Create(int resVertex) {
-	QuadArray2D quadArray = NULL;
-
-	quadArray = malloc(sizeof(TQuadArray2D));
-
-	quadArray->vertexData = malloc(sizeof(float) * Vertex2D_Length * resVertex);
-	quadArray->nVertex    = 0;
-	quadArray->resVertex  = resVertex;
-
-	return quadArray;
-}
-
-void QuadArray2D_Destroy(QuadArray2D *quadArray) {
-	if (!quadArray) {
-		return;
-	}
-	if (!quadArray[0]) {
-		return;
-	}
-
-	free(quadArray[0]->vertexData);
-	free(quadArray[0]);
-	quadArray[0] = NULL;
-}
-
-void QuadArray2D_Clean(QuadArray2D quadArray) { quadArray->nVertex = 0; }
-
-void QuadArray2D_AddVertex(QuadArray2D quadArray, float v[]) {
-	if (quadArray->resVertex <= quadArray->nVertex) {
-		// Grow vertexData
-		quadArray->resVertex *= 2;
-		float *newVertexData = malloc(sizeof(float) * Vertex2D_Length * quadArray->resVertex);
-		memcpy(newVertexData, quadArray->vertexData, sizeof(float) * Vertex2D_Length * quadArray->nVertex);
-		free(quadArray->vertexData);
-		quadArray->vertexData = newVertexData;
-	}
-
-	// Add the vertex
-	memcpy(quadArray->vertexData + (Vertex2D_Length * quadArray->nVertex), v, sizeof(float) * Vertex2D_Length);
-	quadArray->nVertex++;
-}
-
-void QuadArray2D_AddQuad(
-	QuadArray2D quadArray, float x0, float y0, float u0, float v0, float x1, float y1, float u1, float v1,
-	const float color[]) {
-	float v[Vertex2D_Length];
-
-	// Set the color
-	v[4] = color[0];
-	v[5] = color[1];
-	v[6] = color[2];
-	v[7] = color[3];
-
-	// Add the vertexes
-	v[0] = x0;
-	v[1] = y0;
-	v[2] = u0;
-	v[3] = v0;
-	QuadArray2D_AddVertex(quadArray, v);
-	v[0] = x1;
-	v[1] = y0;
-	v[2] = u1;
-	v[3] = v0;
-	QuadArray2D_AddVertex(quadArray, v);
-	v[0] = x1;
-	v[1] = y1;
-	v[2] = u1;
-	v[3] = v1;
-	QuadArray2D_AddVertex(quadArray, v);
-
-	v[0] = x1;
-	v[1] = y1;
-	v[2] = u1;
-	v[3] = v1;
-	QuadArray2D_AddVertex(quadArray, v);
-	v[0] = x0;
-	v[1] = y1;
-	v[2] = u0;
-	v[3] = v1;
-	QuadArray2D_AddVertex(quadArray, v);
-	v[0] = x0;
-	v[1] = y0;
-	v[2] = u0;
-	v[3] = v0;
-	QuadArray2D_AddVertex(quadArray, v);
-}
diff --git a/src/QuadArray2D.h b/src/QuadArray2D.h
deleted file mode 100644
index 4322a1f..0000000
--- a/src/QuadArray2D.h
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (C) 2013-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifndef QuadArray2D_H
-#define QuadArray2D_H
-
-// Vertex2D -> (x,y) (u,v) (r,g,b,a)
-#define Vertex2D_Length 8
-
-////////////////////////////////////////////////
-// QuadArray2D
-//
-typedef struct TQuadArray2D TQuadArray2D, *QuadArray2D;
-struct TQuadArray2D {
-	float *vertexData;
-	int nVertex;
-	int resVertex;
-};
-
-QuadArray2D QuadArray2D_Create(int resVertex);
-
-void QuadArray2D_Destroy(QuadArray2D *quadArray);
-
-void QuadArray2D_Clean(QuadArray2D quadArray);
-
-void QuadArray2D_AddVertex(QuadArray2D quadArray, float v[]);
-
-void QuadArray2D_AddQuad(
-	QuadArray2D quadArray, float x0, float y0, float u0, float v0, float x1, float y1, float u1, float v1,
-	const float color[]);
-
-#endif
diff --git a/src/TimeUtils.c b/src/TimeUtils.c
deleted file mode 100644
index 6094e3b..0000000
--- a/src/TimeUtils.c
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#include <sys/time.h>
-#include <unistd.h>
-
-#include "TimeUtils.h"
-
-/////////////////////////////
-// Time_GetTime
-//
-// Gets the current time in usecs.
-/////////////////////////////
-// Time_Pause
-//
-// Pauses the execution for t usecs.
-#if WIN32
-#include <windows.h>
-// WIN32
-long long Time_GetTime() {
-	LARGE_INTEGER freq;
-	LARGE_INTEGER tim;
-	long long int microt;
-
-	QueryPerformanceFrequency(&freq);
-	QueryPerformanceCounter(&tim);
-	microt = (tim.QuadPart * 1000000) / freq.QuadPart;
-	return (microt);
-}
-void Time_Pause(int pausa) {
-	long long tend, t, diff;
-
-	t    = Time_GetTime();
-	tend = t + pausa;
-	do {
-		diff = tend - t;
-		if (diff > 1000) {
-			Sleep(diff / 1000);
-		} else {
-			Sleep(0);
-		}
-		t = Time_GetTime();
-	} while (tend >= t);
-}
-#else
-// UNIX
-long long Time_GetTime() {
-	struct timeval t;
-	long long usecs;
-	gettimeofday(&t, NULL);
-	usecs = (t.tv_sec * 1000000ll) + (t.tv_usec);
-	return (usecs);
-}
-void Time_Pause(long long pause) {
-	struct timeval tv;
-	tv.tv_sec  = (long long)pause / 1000000;
-	tv.tv_usec = (long long)pause % 1000000;
-	select(0, NULL, NULL, NULL, &tv);
-}
-#endif // if WIN32
diff --git a/src/TimeUtils.h b/src/TimeUtils.h
deleted file mode 100644
index 5f0dc39..0000000
--- a/src/TimeUtils.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifndef TimeUtils_H
-#define TimeUtils_H
-
-/////////////////////////////
-// Time_GetTime
-//
-// Gets the current time in usecs.
-long long Time_GetTime();
-
-/////////////////////////////
-// Time_Pause
-//
-// Pauses the execution for t usecs.
-void Time_Pause(long long pause);
-
-#endif
diff --git a/src/Util.c b/src/Util.c
deleted file mode 100644
index c97172c..0000000
--- a/src/Util.c
+++ /dev/null
@@ -1,421 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#include <math.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "Util.h"
-
-/////////////////////////////
-// Misc
-//
-
-float CosineInterpolation(float f) { return (1.0f - cosf(f * Pi)) * 0.5f; }
-
-int MinimumInt(int i0, int i1) {
-	if (i1 < i0) {
-		return i1;
-	}
-	return i0;
-}
-
-int MaximumInt(int i0, int i1) {
-	if (i1 > i0) {
-		return i1;
-	}
-	return i0;
-}
-
-uint8_t SumClamp_uint8(const uint8_t a, const uint8_t b) {
-	const uint16_t sum = a + b;
-	if (sum > 255) {
-		return 255;
-	}
-	return sum;
-}
-
-/////////////////////////////
-// Rect
-//
-
-void Rect_UnionRect(Rect r0, Rect r1, Rect rd) {
-	rd->x0 = MinimumInt(r0->x0, r1->x0);
-	rd->y0 = MinimumInt(r0->y0, r1->y0);
-	rd->x1 = MaximumInt(r0->x1, r1->x1);
-	rd->y1 = MaximumInt(r0->y1, r1->y1);
-}
-
-int Rect_PointInside(Rect r, int x, int y) { return (x >= r->x0 && x < r->x1 && y >= r->y0 && y < r->y1); }
-
-int Rect_PointInsideAny(TRect r[], int rCount, int x, int y) {
-	int insideAny = 0;
-	int i;
-	for (i = 0; i < rCount; i++) {
-		if (Rect_PointInside(&(r[i]), x, y)) {
-			insideAny = 1;
-			break;
-		}
-	}
-	return insideAny;
-}
-
-/////////////////////////////
-// SolveQuadratic
-//
-// Solves a Quadratic equation using a, b and c coeficients.
-int SolveQuadratic(float a, float b, float c, float *RMin, float *RMax) {
-	float root;
-	float divisor;
-	float b2;
-	b2   = b * b;
-	root = b2 - 4.0f * a * c;
-	if (root < 0) {
-		// Complex
-		return (0);
-	}
-	divisor = (2.0f * a);
-	if (fabsf(divisor) == 0.0f) {
-		// +inf -inf
-		return (0);
-	}
-	root    = sqrtf(root);
-	RMin[0] = (float)((-b - root) / divisor);
-	RMax[0] = (float)((-b + root) / divisor);
-	return (1);
-}
-
-////////////////////////////////////////////////
-// vec2 //
-//////////
-// A 2D vector.
-float vec2_norm(vec2 v) {
-	float len;
-	len = vec2_len(v);
-	vec2_scale(v, v, 1.0f / len);
-	return (len);
-}
-
-void vec2_orthogonalize4(vec2 v) {
-	if (fabsf(v[0]) > fabsf(v[1])) {
-		if (v[0] >= 0) {
-			v[0] = 1.0f;
-			v[1] = 0.0f;
-		} else {
-			v[0] = -1.0f;
-			v[1] = 0.0f;
-		}
-	} else {
-		if (v[1] >= 0) {
-			v[1] = 1.0f;
-			v[0] = 0.0f;
-		} else {
-			v[1] = -1.0f;
-			v[0] = 0.0f;
-		}
-	}
-}
-
-void vec2_orthogonalize8(vec2 v) {
-	float diff = fabsf(fabsf(v[0]) - fabsf(v[1]));
-	if (diff > 0.2f) {
-		if (fabsf(v[0]) > fabsf(v[1])) {
-			if (v[0] >= 0) {
-				v[0] = 1.0f;
-				v[1] = 0.0f;
-			} else {
-				v[0] = -1.0f;
-				v[1] = 0.0f;
-			}
-		} else {
-			if (v[1] >= 0) {
-				v[1] = 1.0f;
-				v[0] = 0.0f;
-			} else {
-				v[1] = -1.0f;
-				v[0] = 0.0f;
-			}
-		}
-	} else {
-		if (v[0] > 0.0f) {
-			v[0] = 0.707f;
-		} else {
-			v[0] = -0.707f;
-		}
-		if (v[1] > 0.0f) {
-			v[1] = 0.707f;
-		} else {
-			v[1] = -0.707f;
-		}
-	}
-}
-
-/////////////////////////////
-// Intersect_RayUnitCircle
-//
-// Intersection between a ray and a Unit Circle.
-int Intersect_RayUnitCircle(const vec2 orig, const vec2 vel, const vec2 center, float *t) {
-	float a, b, c;
-	float Rmin, Rmax;
-	vec2 distv;
-	float qlvel;
-	float qdistv;
-
-	// Check if the collision is even posible
-	qlvel = vec2_dot(vel, vel);
-	if (fabsf(qlvel) <= 0.0f) {
-		return (0);
-	}
-	vec2_minus(distv, orig, center);
-	qdistv = vec2_dot(distv, distv);
-
-	// Solve as a unit circle
-	a = qlvel;
-	b = 2.0f * vec2_dot(distv, vel);
-	c = qdistv - 1.0f;
-	if (SolveQuadratic(a, b, c, &Rmin, &Rmax)) {
-		if (Rmin >= -0.0f && Rmin < Rmax && Rmin <= 1.0f) {
-			*t = Rmin;
-			return (1);
-		}
-		if (Rmax >= -0.0f && Rmin > Rmax && Rmax <= 1.0f) {
-			*t = Rmax;
-			return (1);
-		}
-	}
-	return (0);
-}
-
-/////////////////////////////
-// Collision_CircleCircle
-//
-// Collision point of a circle against another circle.
-int Collision_CircleCircle(const vec2 cir1, float ra, const vec2 vel, const vec2 cb, float rb, float *t, vec2 n) {
-	vec2 vel_a, orig_a, cen_a, temp;
-	float rads, invrads;
-	float maxx, minx;
-	float maxy, miny;
-
-	// Check if the collision is even posible
-	rads = ra + rb;
-	minx = cir1[0] - rads;
-	maxx = cir1[0] + rads;
-	if (vel[0] > 0) {
-		maxx += vel[0];
-	} else {
-		minx += vel[0];
-	}
-	if (cb[0] < minx || cb[0] > maxx)
-		return (0);
-	miny = cir1[1] - rads;
-	maxy = cir1[1] + rads;
-	if (vel[1] > 0) {
-		maxy += vel[1];
-	} else {
-		miny += vel[1];
-	}
-	if (cb[1] < miny || cb[1] > maxy)
-		return (0);
-
-	// Convert to a unit circle vs ray
-	invrads = 1.0f / rads;
-	vec2_scale(vel_a, vel, invrads);
-	vec2_scale(orig_a, cir1, invrads);
-	vec2_scale(cen_a, cb, invrads);
-	if (Intersect_RayUnitCircle(orig_a, vel_a, cen_a, t)) {
-		// Calculate n
-		vec2_scaleadd(temp, cir1, vel, *t);
-		vec2_minus(n, temp, cb);
-		vec2_scale(n, n, invrads);
-		return (1);
-	}
-	return (0);
-}
-
-/////////////////////////////
-// Intersect_RayEdge
-//
-// Intersection between a ray and an edge.
-int Intersect_RayEdge(const vec2 pos, const vec2 vel, const vec2 norm, const vec2 edgePos, float len, float *t) {
-	vec2 pos2, intersection, perp, edgePos2;
-	float delta, d1, d2, hLen;
-
-	vec2_plus(pos2, pos, vel);
-	hLen = len / 2;
-
-	// Check intersection against the line
-	delta = vec2_dot(norm, edgePos);
-	d1    = vec2_dot(pos, norm) - delta;
-	d2    = vec2_dot(pos2, norm) - delta;
-	if (d1 >= -0.0001f && d2 <= 0.0001f) {
-		// Intersection with line, Calculate intersection point
-		*t = d1 / (d1 - d2);
-		vec2_scaleadd(intersection, pos, vel, *t);
-
-		// Perpendicular
-		vec2_perp(perp, norm);
-
-		// Check sides
-		vec2_scaleadd(edgePos2, edgePos, perp, -hLen);
-		delta = -vec2_dot(perp, edgePos2);
-		d1    = (-vec2_dot(perp, intersection)) - delta;
-
-		vec2_scaleadd(edgePos2, edgePos, perp, hLen);
-		delta = vec2_dot(perp, edgePos2);
-		d2    = vec2_dot(perp, intersection) - delta;
-
-		if (d1 <= 0.0f && d2 <= 0.0f) {
-			// Intersection inside Edge.
-			return (1);
-		}
-	}
-	return (0);
-}
-
-/////////////////////////////
-// AbsMod
-//
-int AbsMod(int v, int d) {
-	if (v < 0) {
-		v += d * (((v / d) * (-1)) + 1);
-		return (v);
-	} else {
-		return (v % d);
-	}
-}
-float AbsModFloat(float v, int d) {
-	if (v < 0) {
-		v += d * ((((int)(v / d)) * (-1)) + 1);
-		return (v);
-	} else {
-		v -= d * (((int)(v / d)) + 1);
-		return (v);
-	}
-}
-
-/////////////////////////////
-// IsBigEndian
-//
-int IsBigEndian() {
-	union {
-		unsigned int i;
-		char c[4];
-	} bint = {0x01020304};
-	return bint.c[0] == 1;
-}
-
-/////////////////////////////
-// EndsWith
-//
-int EndsWith(char *str, char *suffix) {
-	if (!str || !suffix) {
-		return 0;
-	}
-	size_t lenStr    = strlen(str);
-	size_t lenSuffix = strlen(suffix);
-	if (lenSuffix > lenStr) {
-		return 0;
-	}
-	return strncmp(str + lenStr - lenSuffix, suffix, lenSuffix) == 0;
-}
-
-/////////////////////////////
-// Rand
-//
-// (LGC++) + Seed change
-
-#define g_LGC_Seed_N 30
-#define g_LGC_Seed_A 30
-#define g_LGC_Seed_B 5
-#define g_LGC_Seed_C 10
-#define g_LGC_Seed_D 15
-#define g_LGC_A 16807ul
-#define g_LGC_C 2
-#define g_LGC_M 2147483647ul
-unsigned g_LGC_Seeds[30];
-int g_LGC_Seed_I = -1;
-
-unsigned g_RandCount;
-unsigned g_RandOrigSeed;
-
-void Rand_Seed(unsigned seed) {
-	int i;
-	g_LGC_Seeds[0] = seed;
-	for (i = 1; i < 30; i++) {
-		g_LGC_Seeds[i] = (g_LGC_Seeds[i - 1] * g_LGC_A + g_LGC_C) % g_LGC_M;
-	}
-	g_LGC_Seed_I = 29;
-
-	// Cambio de semilla
-	g_RandCount    = 0;
-	g_RandOrigSeed = seed;
-}
-
-unsigned Rand_Get() {
-	unsigned val;
-	int a, b, c, d;
-
-	if (g_LGC_Seed_I == -1) {
-		Rand_Seed(1);
-	}
-
-	a = g_LGC_Seed_I - g_LGC_Seed_A;
-	if (a < 0) {
-		a += g_LGC_Seed_N;
-	}
-	b = g_LGC_Seed_I - g_LGC_Seed_B;
-	if (b < 0) {
-		b += g_LGC_Seed_N;
-	}
-	c = g_LGC_Seed_I - g_LGC_Seed_C;
-	if (c < 0) {
-		c += g_LGC_Seed_N;
-	}
-	d = g_LGC_Seed_I - g_LGC_Seed_D;
-	if (d < 0) {
-		d += g_LGC_Seed_N;
-	}
-	val = g_LGC_Seeds[a] ^ g_LGC_Seeds[b] ^ g_LGC_Seeds[c] ^ g_LGC_Seeds[d];
-
-	a = g_LGC_Seed_I - 1;
-	if (a < 0) {
-		a = g_LGC_Seed_N - 1;
-	}
-	g_LGC_Seeds[g_LGC_Seed_I] = (g_LGC_Seeds[a] * g_LGC_A + g_LGC_C) % g_LGC_M;
-	g_LGC_Seed_I++;
-	if (g_LGC_Seed_I == g_LGC_Seed_N) {
-		g_LGC_Seed_I = 0;
-	}
-
-	// Cambio de semilla
-	g_RandCount++;
-	if (g_RandCount > (1 << 15)) {
-		Rand_Seed(g_RandOrigSeed + 1);
-	}
-
-	return (val);
-}
-
-unsigned Rand_GetBetween(int min, int max) {
-	if (min == max) {
-		return max;
-	}
-	return (Rand_Get() % (max - min)) + min;
-}
-
-/////////////////////////////
-// Print
-//
-// Prints the formatted text
-int Print(char *fmt, ...) {
-	va_list ap;
-	int n;
-
-	// Print
-	va_start(ap, fmt);
-	n = vprintf(fmt, ap);
-	va_end(ap);
-
-	// Flush
-	fflush(stdout);
-	return (n);
-}
diff --git a/src/Util.h b/src/Util.h
deleted file mode 100644
index 459bbd3..0000000
--- a/src/Util.h
+++ /dev/null
@@ -1,133 +0,0 @@
-// Copyright (C) 2011-2023 Valeriano Alfonso Rodriguez (Kableado)
-
-#ifndef Util_H
-#define Util_H
-
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdint.h>
-
-#define Pi (3.1415925f)
-
-/////////////////////////////
-// Misc
-//
-
-float CosineInterpolation(float f);
-
-int MinimumInt(int i0, int i1);
-
-int MaximumInt(int i0, int i1);
-
-uint8_t SumClamp_uint8(const uint8_t a, const uint8_t b);
-
-/////////////////////////////
-// Rect
-//
-
-typedef struct SRect TRect, *Rect;
-struct SRect {
-	int x0;
-	int y0;
-	int x1;
-	int y1;
-};
-
-void Rect_UnionRect(Rect r0, Rect r1, Rect rd);
-int Rect_PointInside(Rect r, int x, int y);
-int Rect_PointInsideAny(TRect r[], int rCount, int x, int y);
-
-/////////////////////////////
-// SolveQuadratic
-//
-// Solves a Quadratic equation using a, b and c coefficients.
-int SolveQuadratic(float a, float b, float c, float *RMin, float *RMax);
-
-////////////////////////////////////////////////
-// vec2 //
-//////////
-// A 2D vector.
-typedef float vec2[2];
-#define vec2_set(v, x, y)                                                                                              \
-	(v)[0] = (x);                                                                                                      \
-	(v)[1] = (y)
-#define vec2_copy(v1, v2)                                                                                              \
-	(v1)[0] = (v2)[0];                                                                                                 \
-	(v1)[1] = (v2)[1]
-#define vec2_plus(v, v1, v2)                                                                                           \
-	(v)[0] = (v1)[0] + (v2)[0];                                                                                        \
-	(v)[1] = (v1)[1] + (v2)[1]
-#define vec2_minus(v, v1, v2)                                                                                          \
-	(v)[0] = (v1)[0] - (v2)[0];                                                                                        \
-	(v)[1] = (v1)[1] - (v2)[1]
-#define vec2_scale(v, v1, s)                                                                                           \
-	(v)[0] = (v1)[0] * (s);                                                                                            \
-	(v)[1] = (v1)[1] * (s)
-#define vec2_dot(v1, v2) ((v1)[0] * (v2)[0] + (v1)[1] * (v2)[1])
-#define vec2_len(v) sqrtf((v)[0] * (v)[0] + (v)[1] * (v)[1])
-#define vec2_perp(v, n)                                                                                                \
-	(v)[0] = -(n)[1];                                                                                                  \
-	(v)[1] = (n)[0]
-#define vec2_scaleadd(v, v1, v2, s)                                                                                    \
-	(v)[0] = (v2)[0] * (s) + (v1)[0];                                                                                  \
-	(v)[1] = (v2)[1] * (s) + (v1)[1]
-float vec2_norm(vec2 v);
-#define vec2_interpol(v, v1, v2, f)                                                                                    \
-	(v)[0] = (v1)[0] - f * ((v1)[0] - (v2)[0]);                                                                        \
-	(v)[1] = (v1)[1] - f * ((v1)[1] - (v2)[1])
-void vec2_orthogonalize4(vec2 v);
-void vec2_orthogonalize8(vec2 v);
-
-/////////////////////////////
-// Intersect_RayUnitCircle
-//
-// Intersection between a ray and a Unit Circle.
-int Intersect_RayUnitCircle(const vec2 orig, const vec2 vel, const vec2 center, float *t);
-
-/////////////////////////////
-// Collision_CircleCircle
-//
-// Collision point of a circle against another circle.
-int Collision_CircleCircle(const vec2 cir1, float ra, const vec2 vel, const vec2 cb, float rb, float *t, vec2 n);
-
-/////////////////////////////
-// Intersect_RayEdge
-//
-// Intersection between a ray and an edge.
-int Intersect_RayEdge(const vec2 pos, const vec2 vel, const vec2 norm, const vec2 edgePos, float len, float *t);
-
-/////////////////////////////
-// AbsMod
-//
-int AbsMod(int v, int d);
-float AbsModFloat(float v, int d);
-
-/////////////////////////////
-// IsBigEndian
-//
-int IsBigEndian();
-
-/////////////////////////////
-// EndsWith
-//
-int EndsWith(char *str, char *suffix);
-
-/////////////////////////////
-// Rand
-//
-
-void Rand_Seed(unsigned seed);
-
-unsigned Rand_Get();
-
-#define Rand_GetFloat(x) (((float)(Rand_Get() % 1048576)) / 1048576.0f)
-
-unsigned Rand_GetBetween(int min, int max);
-
-/////////////////////////////
-// Print
-//
-// Prints the formated text
-int Print(char *fmt, ...);
-
-#endif
diff --git a/src/lodepng.c b/src/lodepng.c
deleted file mode 100644
index 52fff28..0000000
--- a/src/lodepng.c
+++ /dev/null
@@ -1,6044 +0,0 @@
-/*
-LodePNG version 20160501
-
-Copyright (c) 2005-2016 Lode Vandevenne
-
-This software is provided 'as-is', without any express or implied
-warranty. In no event will the authors be held liable for any damages
-arising from the use of this software.
-
-Permission is granted to anyone to use this software for any purpose,
-including commercial applications, and to alter it and redistribute it
-freely, subject to the following restrictions:
-
-    1. The origin of this software must not be misrepresented; you must not
-    claim that you wrote the original software. If you use this software
-    in a product, an acknowledgment in the product documentation would be
-    appreciated but is not required.
-
-    2. Altered source versions must be plainly marked as such, and must not be
-    misrepresented as being the original software.
-
-    3. This notice may not be removed or altered from any source
-    distribution.
-*/
-
-/*
-The manual and changelog are in the header file "lodepng.h"
-Rename this file to lodepng.cpp to use it for C++, or to lodepng.c to use it for C.
-*/
-
-#include "lodepng.h"
-
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1310) /*Visual Studio: A few warning types are not desired here.*/
-#pragma warning(disable : 4244) /*implicit conversions: not warned by gcc -Wall -Wextra and requires too much casts*/
-#pragma warning(disable : 4996) /*VS does not like fopen, but fopen_s is not standard C so unusable here*/
-#endif                          /*_MSC_VER */
-
-const char *LODEPNG_VERSION_STRING = "20160501";
-
-/*
-This source file is built up in the following large parts. The code sections
-with the "LODEPNG_COMPILE_" #defines divide this up further in an intermixed way.
--Tools for C and common code for PNG and Zlib
--C Code for Zlib (huffman, deflate, ...)
--C Code for PNG (file format chunks, adam7, PNG filters, color conversions, ...)
--The C++ wrapper around all of the above
-*/
-
-/*The malloc, realloc and free functions defined here with "lodepng_" in front
-of the name, so that you can easily change them to others related to your
-platform if needed. Everything else in the code calls these. Pass
--DLODEPNG_NO_COMPILE_ALLOCATORS to the compiler, or comment out
-#define LODEPNG_COMPILE_ALLOCATORS in the header, to disable the ones here and
-define them in your own project's source files without needing to change
-lodepng source code. Don't forget to remove "static" if you copypaste them
-from here.*/
-
-#ifdef LODEPNG_COMPILE_ALLOCATORS
-static void *lodepng_malloc(size_t size) { return malloc(size); }
-
-static void *lodepng_realloc(void *ptr, size_t new_size) { return realloc(ptr, new_size); }
-
-static void lodepng_free(void *ptr) { free(ptr); }
-#else  /*LODEPNG_COMPILE_ALLOCATORS*/
-void *lodepng_malloc(size_t size);
-void *lodepng_realloc(void *ptr, size_t new_size);
-void lodepng_free(void *ptr);
-#endif /*LODEPNG_COMPILE_ALLOCATORS*/
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* ////////////////////////////////////////////////////////////////////////// */
-/* // Tools for C, and common code for PNG and Zlib.                       // */
-/* ////////////////////////////////////////////////////////////////////////// */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-/*
-Often in case of an error a value is assigned to a variable and then it breaks
-out of a loop (to go to the cleanup phase of a function). This macro does that.
-It makes the error handling code shorter and more readable.
-
-Example: if(!uivector_resizev(&frequencies_ll, 286, 0)) ERROR_BREAK(83);
-*/
-#define CERROR_BREAK(errorvar, code)                                                                                   \
-	{                                                                                                                  \
-		errorvar = code;                                                                                               \
-		break;                                                                                                         \
-	}
-
-/*version of CERROR_BREAK that assumes the common case where the error variable is named "error"*/
-#define ERROR_BREAK(code) CERROR_BREAK(error, code)
-
-/*Set error var to the error code, and return it.*/
-#define CERROR_RETURN_ERROR(errorvar, code)                                                                            \
-	{                                                                                                                  \
-		errorvar = code;                                                                                               \
-		return code;                                                                                                   \
-	}
-
-/*Try the code, if it returns error, also return the error.*/
-#define CERROR_TRY_RETURN(call)                                                                                        \
-	{                                                                                                                  \
-		unsigned error = call;                                                                                         \
-		if (error)                                                                                                     \
-			return error;                                                                                              \
-	}
-
-/*Set error var to the error code, and return from the void function.*/
-#define CERROR_RETURN(errorvar, code)                                                                                  \
-	{                                                                                                                  \
-		errorvar = code;                                                                                               \
-		return;                                                                                                        \
-	}
-
-/*
-About uivector, ucvector and string:
--All of them wrap dynamic arrays or text strings in a similar way.
--LodePNG was originally written in C++. The vectors replace the std::vectors that were used in the C++ version.
--The string tools are made to avoid problems with compilers that declare things like strncat as deprecated.
--They're not used in the interface, only internally in this file as static functions.
--As with many other structs in this file, the init and cleanup functions serve as ctor and dtor.
-*/
-
-#ifdef LODEPNG_COMPILE_ZLIB
-/*dynamic vector of unsigned ints*/
-typedef struct uivector {
-	unsigned *data;
-	size_t size;      /*size in number of unsigned longs*/
-	size_t allocsize; /*allocated size in bytes*/
-} uivector;
-
-static void uivector_cleanup(void *p) {
-	((uivector *)p)->size = ((uivector *)p)->allocsize = 0;
-	lodepng_free(((uivector *)p)->data);
-	((uivector *)p)->data = NULL;
-}
-
-/*returns 1 if success, 0 if failure ==> nothing done*/
-static unsigned uivector_reserve(uivector *p, size_t allocsize) {
-	if (allocsize > p->allocsize) {
-		size_t newsize = (allocsize > p->allocsize * 2) ? allocsize : (allocsize * 3 / 2);
-		void *data     = lodepng_realloc(p->data, newsize);
-		if (data) {
-			p->allocsize = newsize;
-			p->data      = (unsigned *)data;
-		} else
-			return 0; /*error: not enough memory*/
-	}
-	return 1;
-}
-
-/*returns 1 if success, 0 if failure ==> nothing done*/
-static unsigned uivector_resize(uivector *p, size_t size) {
-	if (!uivector_reserve(p, size * sizeof(unsigned)))
-		return 0;
-	p->size = size;
-	return 1; /*success*/
-}
-
-/*resize and give all new elements the value*/
-static unsigned uivector_resizev(uivector *p, size_t size, unsigned value) {
-	size_t oldsize = p->size, i;
-	if (!uivector_resize(p, size))
-		return 0;
-	for (i = oldsize; i < size; ++i)
-		p->data[i] = value;
-	return 1;
-}
-
-static void uivector_init(uivector *p) {
-	p->data = NULL;
-	p->size = p->allocsize = 0;
-}
-
-#ifdef LODEPNG_COMPILE_ENCODER
-/*returns 1 if success, 0 if failure ==> nothing done*/
-static unsigned uivector_push_back(uivector *p, unsigned c) {
-	if (!uivector_resize(p, p->size + 1))
-		return 0;
-	p->data[p->size - 1] = c;
-	return 1;
-}
-#endif /*LODEPNG_COMPILE_ENCODER*/
-#endif /*LODEPNG_COMPILE_ZLIB*/
-
-/* /////////////////////////////////////////////////////////////////////////// */
-
-/*dynamic vector of uint8_ts*/
-typedef struct ucvector {
-	uint8_t *data;
-	size_t size;      /*used size*/
-	size_t allocsize; /*allocated size*/
-} ucvector;
-
-/*returns 1 if success, 0 if failure ==> nothing done*/
-static unsigned ucvector_reserve(ucvector *p, size_t allocsize) {
-	if (allocsize > p->allocsize) {
-		size_t newsize = (allocsize > p->allocsize * 2) ? allocsize : (allocsize * 3 / 2);
-		void *data     = lodepng_realloc(p->data, newsize);
-		if (data) {
-			p->allocsize = newsize;
-			p->data      = (uint8_t *)data;
-		} else
-			return 0; /*error: not enough memory*/
-	}
-	return 1;
-}
-
-/*returns 1 if success, 0 if failure ==> nothing done*/
-static unsigned ucvector_resize(ucvector *p, size_t size) {
-	if (!ucvector_reserve(p, size * sizeof(uint8_t)))
-		return 0;
-	p->size = size;
-	return 1; /*success*/
-}
-
-#ifdef LODEPNG_COMPILE_PNG
-
-static void ucvector_cleanup(void *p) {
-	((ucvector *)p)->size = ((ucvector *)p)->allocsize = 0;
-	lodepng_free(((ucvector *)p)->data);
-	((ucvector *)p)->data = NULL;
-}
-
-static void ucvector_init(ucvector *p) {
-	p->data = NULL;
-	p->size = p->allocsize = 0;
-}
-#endif /*LODEPNG_COMPILE_PNG*/
-
-#ifdef LODEPNG_COMPILE_ZLIB
-/*you can both convert from vector to buffer&size and vica versa. If you use
-init_buffer to take over a buffer and size, it is not needed to use cleanup*/
-static void ucvector_init_buffer(ucvector *p, uint8_t *buffer, size_t size) {
-	p->data      = buffer;
-	p->allocsize = p->size = size;
-}
-#endif /*LODEPNG_COMPILE_ZLIB*/
-
-#if (defined(LODEPNG_COMPILE_PNG) && defined(LODEPNG_COMPILE_ANCILLARY_CHUNKS)) || defined(LODEPNG_COMPILE_ENCODER)
-/*returns 1 if success, 0 if failure ==> nothing done*/
-static unsigned ucvector_push_back(ucvector *p, uint8_t c) {
-	if (!ucvector_resize(p, p->size + 1))
-		return 0;
-	p->data[p->size - 1] = c;
-	return 1;
-}
-#endif /*defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER)*/
-
-/* ////////////////////////////////////////////////////////////////////////// */
-
-#ifdef LODEPNG_COMPILE_PNG
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-/*returns 1 if success, 0 if failure ==> nothing done*/
-static unsigned string_resize(char **out, size_t size) {
-	char *data = (char *)lodepng_realloc(*out, size + 1);
-	if (data) {
-		data[size] = 0; /*null termination char*/
-		*out       = data;
-	}
-	return data != 0;
-}
-
-/*init a {char*, size_t} pair for use as string*/
-static void string_init(char **out) {
-	*out = NULL;
-	string_resize(out, 0);
-}
-
-/*free the above pair again*/
-static void string_cleanup(char **out) {
-	lodepng_free(*out);
-	*out = NULL;
-}
-
-static void string_set(char **out, const char *in) {
-	size_t insize = strlen(in), i;
-	if (string_resize(out, insize)) {
-		for (i = 0; i != insize; ++i) {
-			(*out)[i] = in[i];
-		}
-	}
-}
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-#endif /*LODEPNG_COMPILE_PNG*/
-
-/* ////////////////////////////////////////////////////////////////////////// */
-
-unsigned lodepng_read32bitInt(const uint8_t *buffer) {
-	return (unsigned)((buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | buffer[3]);
-}
-
-#if defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER)
-/*buffer must have at least 4 allocated bytes available*/
-static void lodepng_set32bitInt(uint8_t *buffer, unsigned value) {
-	buffer[0] = (uint8_t)((value >> 24) & 0xff);
-	buffer[1] = (uint8_t)((value >> 16) & 0xff);
-	buffer[2] = (uint8_t)((value >> 8) & 0xff);
-	buffer[3] = (uint8_t)((value) & 0xff);
-}
-#endif /*defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER)*/
-
-#ifdef LODEPNG_COMPILE_ENCODER
-static void lodepng_add32bitInt(ucvector *buffer, unsigned value) {
-	ucvector_resize(buffer, buffer->size + 4); /*todo: give error if resize failed*/
-	lodepng_set32bitInt(&buffer->data[buffer->size - 4], value);
-}
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / File IO                                                                / */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-#ifdef LODEPNG_COMPILE_DISK
-
-/* returns negative value on error. This should be pure C compatible, so no fstat. */
-static long lodepng_filesize(const char *filename) {
-	FILE *file;
-	long size;
-	file = fopen(filename, "rb");
-	if (!file)
-		return -1;
-
-	if (fseek(file, 0, SEEK_END) != 0) {
-		fclose(file);
-		return -1;
-	}
-
-	size = ftell(file);
-	/* It may give LONG_MAX as directory size, this is invalid for us. */
-	if (size == LONG_MAX)
-		size = -1;
-
-	fclose(file);
-	return size;
-}
-
-/* load file into buffer that already has the correct allocated size. Returns error code.*/
-static unsigned lodepng_buffer_file(uint8_t *out, size_t size, const char *filename) {
-	FILE *file;
-	size_t readsize;
-	file = fopen(filename, "rb");
-	if (!file)
-		return 78;
-
-	readsize = fread(out, 1, size, file);
-	fclose(file);
-
-	if (readsize != size)
-		return 78;
-	return 0;
-}
-
-unsigned lodepng_load_file(uint8_t **out, size_t *outsize, const char *filename) {
-	long size = lodepng_filesize(filename);
-	if (size < 0)
-		return 78;
-	*outsize = (size_t)size;
-
-	*out = (uint8_t *)lodepng_malloc((size_t)size);
-	if (!(*out) && size > 0)
-		return 83; /*the above malloc failed*/
-
-	return lodepng_buffer_file(*out, (size_t)size, filename);
-}
-
-/*write given buffer to the file, overwriting the file, it doesn't append to it.*/
-unsigned lodepng_save_file(const uint8_t *buffer, size_t buffersize, const char *filename) {
-	FILE *file;
-	file = fopen(filename, "wb");
-	if (!file)
-		return 79;
-	fwrite((char *)buffer, 1, buffersize, file);
-	fclose(file);
-	return 0;
-}
-
-#endif /*LODEPNG_COMPILE_DISK*/
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* ////////////////////////////////////////////////////////////////////////// */
-/* // End of common code and tools. Begin of Zlib related code.            // */
-/* ////////////////////////////////////////////////////////////////////////// */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-#ifdef LODEPNG_COMPILE_ZLIB
-#ifdef LODEPNG_COMPILE_ENCODER
-/*TODO: this ignores potential out of memory errors*/
-#define addBitToStream(/*size_t**/ bitpointer, /*ucvector**/ bitstream, /*uint8_t*/ bit)                         \
-	{                                                                                                                  \
-		/*add a new byte at the end*/                                                                                  \
-		if (((*bitpointer) & 7) == 0)                                                                                  \
-			ucvector_push_back(bitstream, (uint8_t)0);                                                           \
-		/*earlier bit of huffman code is in a lesser significant bit of an earlier byte*/                              \
-		(bitstream->data[bitstream->size - 1]) |= (bit << ((*bitpointer) & 0x7));                                      \
-		++(*bitpointer);                                                                                               \
-	}
-
-static void addBitsToStream(size_t *bitpointer, ucvector *bitstream, unsigned value, size_t nbits) {
-	size_t i;
-	for (i = 0; i != nbits; ++i)
-		addBitToStream(bitpointer, bitstream, (uint8_t)((value >> i) & 1));
-}
-
-static void addBitsToStreamReversed(size_t *bitpointer, ucvector *bitstream, unsigned value, size_t nbits) {
-	size_t i;
-	for (i = 0; i != nbits; ++i)
-		addBitToStream(bitpointer, bitstream, (uint8_t)((value >> (nbits - 1 - i)) & 1));
-}
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-#ifdef LODEPNG_COMPILE_DECODER
-
-#define READBIT(bitpointer, bitstream) ((bitstream[bitpointer >> 3] >> (bitpointer & 0x7)) & (uint8_t)1)
-
-static uint8_t readBitFromStream(size_t *bitpointer, const uint8_t *bitstream) {
-	uint8_t result = (uint8_t)(READBIT(*bitpointer, bitstream));
-	++(*bitpointer);
-	return result;
-}
-
-static unsigned readBitsFromStream(size_t *bitpointer, const uint8_t *bitstream, size_t nbits) {
-	unsigned result = 0, i;
-	for (i = 0; i != nbits; ++i) {
-		result += ((unsigned)READBIT(*bitpointer, bitstream)) << i;
-		++(*bitpointer);
-	}
-	return result;
-}
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / Deflate - Huffman                                                      / */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-#define FIRST_LENGTH_CODE_INDEX 257
-#define LAST_LENGTH_CODE_INDEX 285
-/*256 literals, the end code, some length codes, and 2 unused codes*/
-#define NUM_DEFLATE_CODE_SYMBOLS 288
-/*the distance codes have their own symbols, 30 used, 2 unused*/
-#define NUM_DISTANCE_SYMBOLS 32
-/*the code length codes. 0-15: code lengths, 16: copy previous 3-6 times, 17: 3-10 zeros, 18: 11-138 zeros*/
-#define NUM_CODE_LENGTH_CODES 19
-
-/*the base lengths represented by codes 257-285*/
-static const unsigned LENGTHBASE[29] = {3,  4,  5,  6,  7,  8,  9,  10, 11,  13,  15,  17,  19,  23, 27,
-                                        31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258};
-
-/*the extra bits used by codes 257-285 (added to base length)*/
-static const unsigned LENGTHEXTRA[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
-                                         2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
-
-/*the base backwards distances (the bits of distance codes appear after length codes and use their own huffman tree)*/
-static const unsigned DISTANCEBASE[30] = {1,    2,    3,    4,    5,    7,    9,    13,    17,    25,
-                                          33,   49,   65,   97,   129,  193,  257,  385,   513,   769,
-                                          1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
-
-/*the extra bits of backwards distances (added to base)*/
-static const unsigned DISTANCEEXTRA[30] = {0, 0, 0, 0, 1, 1, 2, 2,  3,  3,  4,  4,  5,  5,  6,
-                                           6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
-
-/*the order in which "code length alphabet code lengths" are stored, out of this
-the huffman tree of the dynamic huffman tree lengths is generated*/
-static const unsigned CLCL_ORDER[NUM_CODE_LENGTH_CODES] =
-	{16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
-
-/* ////////////////////////////////////////////////////////////////////////// */
-
-/*
-Huffman tree struct, containing multiple representations of the tree
-*/
-typedef struct HuffmanTree {
-	unsigned *tree2d;
-	unsigned *tree1d;
-	unsigned *lengths;  /*the lengths of the codes of the 1d-tree*/
-	unsigned maxbitlen; /*maximum number of bits a single code can get*/
-	unsigned numcodes;  /*number of symbols in the alphabet = number of codes*/
-} HuffmanTree;
-
-/*function used for debug purposes to draw the tree in ascii art with C++*/
-/*
-static void HuffmanTree_draw(HuffmanTree* tree)
-{
-  std::cout << "tree. length: " << tree->numcodes << " maxbitlen: " << tree->maxbitlen << std::endl;
-  for(size_t i = 0; i != tree->tree1d.size; ++i)
-  {
-    if(tree->lengths.data[i])
-      std::cout << i << " " << tree->tree1d.data[i] << " " << tree->lengths.data[i] << std::endl;
-  }
-  std::cout << std::endl;
-}*/
-
-static void HuffmanTree_init(HuffmanTree *tree) {
-	tree->tree2d  = 0;
-	tree->tree1d  = 0;
-	tree->lengths = 0;
-}
-
-static void HuffmanTree_cleanup(HuffmanTree *tree) {
-	lodepng_free(tree->tree2d);
-	lodepng_free(tree->tree1d);
-	lodepng_free(tree->lengths);
-}
-
-/*the tree representation used by the decoder. return value is error*/
-static unsigned HuffmanTree_make2DTree(HuffmanTree *tree) {
-	unsigned nodefilled = 0; /*up to which node it is filled*/
-	unsigned treepos    = 0; /*position in the tree (1 of the numcodes columns)*/
-	unsigned n, i;
-
-	tree->tree2d = (unsigned *)lodepng_malloc(tree->numcodes * 2 * sizeof(unsigned));
-	if (!tree->tree2d)
-		return 83; /*alloc fail*/
-
-	/*
-	convert tree1d[] to tree2d[][]. In the 2D array, a value of 32767 means
-	uninited, a value >= numcodes is an address to another bit, a value < numcodes
-	is a code. The 2 rows are the 2 possible bit values (0 or 1), there are as
-	many columns as codes - 1.
-	A good huffman tree has N * 2 - 1 nodes, of which N - 1 are internal nodes.
-	Here, the internal nodes are stored (what their 0 and 1 option point to).
-	There is only memory for such good tree currently, if there are more nodes
-	(due to too long length codes), error 55 will happen
-	*/
-	for (n = 0; n < tree->numcodes * 2; ++n) {
-		tree->tree2d[n] = 32767; /*32767 here means the tree2d isn't filled there yet*/
-	}
-
-	for (n = 0; n < tree->numcodes; ++n) /*the codes*/
-	{
-		for (i = 0; i != tree->lengths[n]; ++i) /*the bits for this code*/
-		{
-			uint8_t bit = (uint8_t)((tree->tree1d[n] >> (tree->lengths[n] - i - 1)) & 1);
-			/*oversubscribed, see comment in lodepng_error_text*/
-			if (treepos > 2147483647 || treepos + 2 > tree->numcodes)
-				return 55;
-			if (tree->tree2d[2 * treepos + bit] == 32767) /*not yet filled in*/
-			{
-				if (i + 1 == tree->lengths[n]) /*last bit*/
-				{
-					tree->tree2d[2 * treepos + bit] = n; /*put the current code in it*/
-					treepos                         = 0;
-				} else {
-					/*put address of the next step in here, first that address has to be found of course
-					(it's just nodefilled + 1)...*/
-					++nodefilled;
-					/*addresses encoded with numcodes added to it*/
-					tree->tree2d[2 * treepos + bit] = nodefilled + tree->numcodes;
-					treepos                         = nodefilled;
-				}
-			} else
-				treepos = tree->tree2d[2 * treepos + bit] - tree->numcodes;
-		}
-	}
-
-	for (n = 0; n < tree->numcodes * 2; ++n) {
-		if (tree->tree2d[n] == 32767)
-			tree->tree2d[n] = 0; /*remove possible remaining 32767's*/
-	}
-
-	return 0;
-}
-
-/*
-Second step for the ...makeFromLengths and ...makeFromFrequencies functions.
-numcodes, lengths and maxbitlen must already be filled in correctly. return
-value is error.
-*/
-static unsigned HuffmanTree_makeFromLengths2(HuffmanTree *tree) {
-	uivector blcount;
-	uivector nextcode;
-	unsigned error = 0;
-	unsigned bits, n;
-
-	uivector_init(&blcount);
-	uivector_init(&nextcode);
-
-	tree->tree1d = (unsigned *)lodepng_malloc(tree->numcodes * sizeof(unsigned));
-	if (!tree->tree1d)
-		error = 83; /*alloc fail*/
-
-	if (!uivector_resizev(&blcount, tree->maxbitlen + 1, 0) || !uivector_resizev(&nextcode, tree->maxbitlen + 1, 0))
-		error = 83; /*alloc fail*/
-
-	if (!error) {
-		/*step 1: count number of instances of each code length*/
-		for (bits = 0; bits != tree->numcodes; ++bits)
-			++blcount.data[tree->lengths[bits]];
-		/*step 2: generate the nextcode values*/
-		for (bits = 1; bits <= tree->maxbitlen; ++bits) {
-			nextcode.data[bits] = (nextcode.data[bits - 1] + blcount.data[bits - 1]) << 1;
-		}
-		/*step 3: generate all the codes*/
-		for (n = 0; n != tree->numcodes; ++n) {
-			if (tree->lengths[n] != 0)
-				tree->tree1d[n] = nextcode.data[tree->lengths[n]]++;
-		}
-	}
-
-	uivector_cleanup(&blcount);
-	uivector_cleanup(&nextcode);
-
-	if (!error)
-		return HuffmanTree_make2DTree(tree);
-	else
-		return error;
-}
-
-/*
-given the code lengths (as stored in the PNG file), generate the tree as defined
-by Deflate. maxbitlen is the maximum bits that a code in the tree can have.
-return value is error.
-*/
-static unsigned
-HuffmanTree_makeFromLengths(HuffmanTree *tree, const unsigned *bitlen, size_t numcodes, unsigned maxbitlen) {
-	unsigned i;
-	tree->lengths = (unsigned *)lodepng_malloc(numcodes * sizeof(unsigned));
-	if (!tree->lengths)
-		return 83; /*alloc fail*/
-	for (i = 0; i != numcodes; ++i)
-		tree->lengths[i] = bitlen[i];
-	tree->numcodes  = (unsigned)numcodes; /*number of symbols*/
-	tree->maxbitlen = maxbitlen;
-	return HuffmanTree_makeFromLengths2(tree);
-}
-
-#ifdef LODEPNG_COMPILE_ENCODER
-
-/*BPM: Boundary Package Merge, see "A Fast and Space-Economical Algorithm for Length-Limited Coding",
-Jyrki Katajainen, Alistair Moffat, Andrew Turpin, 1995.*/
-
-/*chain node for boundary package merge*/
-typedef struct BPMNode {
-	int weight;           /*the sum of all weights in this chain*/
-	unsigned index;       /*index of this leaf node (called "count" in the paper)*/
-	struct BPMNode *tail; /*the next nodes in this chain (null if last)*/
-	int in_use;
-} BPMNode;
-
-/*lists of chains*/
-typedef struct BPMLists {
-	/*memory pool*/
-	unsigned memsize;
-	BPMNode *memory;
-	unsigned numfree;
-	unsigned nextfree;
-	BPMNode **freelist;
-	/*two heads of lookahead chains per list*/
-	unsigned listsize;
-	BPMNode **chains0;
-	BPMNode **chains1;
-} BPMLists;
-
-/*creates a new chain node with the given parameters, from the memory in the lists */
-static BPMNode *bpmnode_create(BPMLists *lists, int weight, unsigned index, BPMNode *tail) {
-	unsigned i;
-	BPMNode *result;
-
-	/*memory full, so garbage collect*/
-	if (lists->nextfree >= lists->numfree) {
-		/*mark only those that are in use*/
-		for (i = 0; i != lists->memsize; ++i)
-			lists->memory[i].in_use = 0;
-		for (i = 0; i != lists->listsize; ++i) {
-			BPMNode *node;
-			for (node = lists->chains0[i]; node != 0; node = node->tail)
-				node->in_use = 1;
-			for (node = lists->chains1[i]; node != 0; node = node->tail)
-				node->in_use = 1;
-		}
-		/*collect those that are free*/
-		lists->numfree = 0;
-		for (i = 0; i != lists->memsize; ++i) {
-			if (!lists->memory[i].in_use)
-				lists->freelist[lists->numfree++] = &lists->memory[i];
-		}
-		lists->nextfree = 0;
-	}
-
-	result         = lists->freelist[lists->nextfree++];
-	result->weight = weight;
-	result->index  = index;
-	result->tail   = tail;
-	return result;
-}
-
-/*sort the leaves with stable mergesort*/
-static void bpmnode_sort(BPMNode *leaves, size_t num) {
-	BPMNode *mem = (BPMNode *)lodepng_malloc(sizeof(*leaves) * num);
-	size_t width, counter = 0;
-	for (width = 1; width < num; width *= 2) {
-		BPMNode *a = (counter & 1) ? mem : leaves;
-		BPMNode *b = (counter & 1) ? leaves : mem;
-		size_t p;
-		for (p = 0; p < num; p += 2 * width) {
-			size_t q = (p + width > num) ? num : (p + width);
-			size_t r = (p + 2 * width > num) ? num : (p + 2 * width);
-			size_t i = p, j = q, k;
-			for (k = p; k < r; k++) {
-				if (i < q && (j >= r || a[i].weight <= a[j].weight))
-					b[k] = a[i++];
-				else
-					b[k] = a[j++];
-			}
-		}
-		counter++;
-	}
-	if (counter & 1)
-		memcpy(leaves, mem, sizeof(*leaves) * num);
-	lodepng_free(mem);
-}
-
-/*Boundary Package Merge step, numpresent is the amount of leaves, and c is the current chain.*/
-static void boundaryPM(BPMLists *lists, BPMNode *leaves, size_t numpresent, int c, int num) {
-	unsigned lastindex = lists->chains1[c]->index;
-
-	if (c == 0) {
-		if (lastindex >= numpresent)
-			return;
-		lists->chains0[c] = lists->chains1[c];
-		lists->chains1[c] = bpmnode_create(lists, leaves[lastindex].weight, lastindex + 1, 0);
-	} else {
-		/*sum of the weights of the head nodes of the previous lookahead chains.*/
-		int sum           = lists->chains0[c - 1]->weight + lists->chains1[c - 1]->weight;
-		lists->chains0[c] = lists->chains1[c];
-		if (lastindex < numpresent && sum > leaves[lastindex].weight) {
-			lists->chains1[c] = bpmnode_create(lists, leaves[lastindex].weight, lastindex + 1, lists->chains1[c]->tail);
-			return;
-		}
-		lists->chains1[c] = bpmnode_create(lists, sum, lastindex, lists->chains1[c - 1]);
-		/*in the end we are only interested in the chain of the last list, so no
-		need to recurse if we're at the last one (this gives measurable speedup)*/
-		if (num + 1 < (int)(2 * numpresent - 2)) {
-			boundaryPM(lists, leaves, numpresent, c - 1, num);
-			boundaryPM(lists, leaves, numpresent, c - 1, num);
-		}
-	}
-}
-
-unsigned
-lodepng_huffman_code_lengths(unsigned *lengths, const unsigned *frequencies, size_t numcodes, unsigned maxbitlen) {
-	unsigned error = 0;
-	unsigned i;
-	size_t numpresent = 0; /*number of symbols with non-zero frequency*/
-	BPMNode *leaves;       /*the symbols, only those with > 0 frequency*/
-
-	if (numcodes == 0)
-		return 80; /*error: a tree of 0 symbols is not supposed to be made*/
-	if ((1u << maxbitlen) < numcodes)
-		return 80; /*error: represent all symbols*/
-
-	leaves = (BPMNode *)lodepng_malloc(numcodes * sizeof(*leaves));
-	if (!leaves)
-		return 83; /*alloc fail*/
-
-	for (i = 0; i != numcodes; ++i) {
-		if (frequencies[i] > 0) {
-			leaves[numpresent].weight = (int)frequencies[i];
-			leaves[numpresent].index  = i;
-			++numpresent;
-		}
-	}
-
-	for (i = 0; i != numcodes; ++i)
-		lengths[i] = 0;
-
-	/*ensure at least two present symbols. There should be at least one symbol
-	according to RFC 1951 section 3.2.7. Some decoders incorrectly require two. To
-	make these work as well ensure there are at least two symbols. The
-	Package-Merge code below also doesn't work correctly if there's only one
-	symbol, it'd give it the theoritical 0 bits but in practice zlib wants 1 bit*/
-	if (numpresent == 0) {
-		lengths[0] = lengths[1] = 1; /*note that for RFC 1951 section 3.2.7, only lengths[0] = 1 is needed*/
-	} else if (numpresent == 1) {
-		lengths[leaves[0].index]              = 1;
-		lengths[leaves[0].index == 0 ? 1 : 0] = 1;
-	} else {
-		BPMLists lists;
-		BPMNode *node;
-
-		bpmnode_sort(leaves, numpresent);
-
-		lists.listsize = maxbitlen;
-		lists.memsize  = 2 * maxbitlen * (maxbitlen + 1);
-		lists.nextfree = 0;
-		lists.numfree  = lists.memsize;
-		lists.memory   = (BPMNode *)lodepng_malloc(lists.memsize * sizeof(*lists.memory));
-		lists.freelist = (BPMNode **)lodepng_malloc(lists.memsize * sizeof(BPMNode *));
-		lists.chains0  = (BPMNode **)lodepng_malloc(lists.listsize * sizeof(BPMNode *));
-		lists.chains1  = (BPMNode **)lodepng_malloc(lists.listsize * sizeof(BPMNode *));
-		if (!lists.memory || !lists.freelist || !lists.chains0 || !lists.chains1)
-			error = 83; /*alloc fail*/
-
-		if (!error) {
-			for (i = 0; i != lists.memsize; ++i)
-				lists.freelist[i] = &lists.memory[i];
-
-			bpmnode_create(&lists, leaves[0].weight, 1, 0);
-			bpmnode_create(&lists, leaves[1].weight, 2, 0);
-
-			for (i = 0; i != lists.listsize; ++i) {
-				lists.chains0[i] = &lists.memory[0];
-				lists.chains1[i] = &lists.memory[1];
-			}
-
-			/*each boundaryPM call adds one chain to the last list, and we need 2 * numpresent - 2 chains.*/
-			for (i = 2; i != 2 * numpresent - 2; ++i)
-				boundaryPM(&lists, leaves, numpresent, (int)maxbitlen - 1, (int)i);
-
-			for (node = lists.chains1[maxbitlen - 1]; node; node = node->tail) {
-				for (i = 0; i != node->index; ++i)
-					++lengths[leaves[i].index];
-			}
-		}
-
-		lodepng_free(lists.memory);
-		lodepng_free(lists.freelist);
-		lodepng_free(lists.chains0);
-		lodepng_free(lists.chains1);
-	}
-
-	lodepng_free(leaves);
-	return error;
-}
-
-/*Create the Huffman tree given the symbol frequencies*/
-static unsigned HuffmanTree_makeFromFrequencies(
-	HuffmanTree *tree, const unsigned *frequencies, size_t mincodes, size_t numcodes, unsigned maxbitlen) {
-	unsigned error = 0;
-	while (!frequencies[numcodes - 1] && numcodes > mincodes)
-		--numcodes; /*trim zeroes*/
-	tree->maxbitlen = maxbitlen;
-	tree->numcodes  = (unsigned)numcodes; /*number of symbols*/
-	tree->lengths   = (unsigned *)lodepng_realloc(tree->lengths, numcodes * sizeof(unsigned));
-	if (!tree->lengths)
-		return 83; /*alloc fail*/
-	/*initialize all lengths to 0*/
-	memset(tree->lengths, 0, numcodes * sizeof(unsigned));
-
-	error = lodepng_huffman_code_lengths(tree->lengths, frequencies, numcodes, maxbitlen);
-	if (!error)
-		error = HuffmanTree_makeFromLengths2(tree);
-	return error;
-}
-
-static unsigned HuffmanTree_getCode(const HuffmanTree *tree, unsigned index) { return tree->tree1d[index]; }
-
-static unsigned HuffmanTree_getLength(const HuffmanTree *tree, unsigned index) { return tree->lengths[index]; }
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-/*get the literal and length code tree of a deflated block with fixed tree, as per the deflate specification*/
-static unsigned generateFixedLitLenTree(HuffmanTree *tree) {
-	unsigned i, error = 0;
-	unsigned *bitlen = (unsigned *)lodepng_malloc(NUM_DEFLATE_CODE_SYMBOLS * sizeof(unsigned));
-	if (!bitlen)
-		return 83; /*alloc fail*/
-
-	/*288 possible codes: 0-255=literals, 256=endcode, 257-285=lengthcodes, 286-287=unused*/
-	for (i = 0; i <= 143; ++i)
-		bitlen[i] = 8;
-	for (i = 144; i <= 255; ++i)
-		bitlen[i] = 9;
-	for (i = 256; i <= 279; ++i)
-		bitlen[i] = 7;
-	for (i = 280; i <= 287; ++i)
-		bitlen[i] = 8;
-
-	error = HuffmanTree_makeFromLengths(tree, bitlen, NUM_DEFLATE_CODE_SYMBOLS, 15);
-
-	lodepng_free(bitlen);
-	return error;
-}
-
-/*get the distance code tree of a deflated block with fixed tree, as specified in the deflate specification*/
-static unsigned generateFixedDistanceTree(HuffmanTree *tree) {
-	unsigned i, error = 0;
-	unsigned *bitlen = (unsigned *)lodepng_malloc(NUM_DISTANCE_SYMBOLS * sizeof(unsigned));
-	if (!bitlen)
-		return 83; /*alloc fail*/
-
-	/*there are 32 distance codes, but 30-31 are unused*/
-	for (i = 0; i != NUM_DISTANCE_SYMBOLS; ++i)
-		bitlen[i] = 5;
-	error = HuffmanTree_makeFromLengths(tree, bitlen, NUM_DISTANCE_SYMBOLS, 15);
-
-	lodepng_free(bitlen);
-	return error;
-}
-
-#ifdef LODEPNG_COMPILE_DECODER
-
-/*
-returns the code, or (unsigned)(-1) if error happened
-inbitlength is the length of the complete buffer, in bits (so its byte length times 8)
-*/
-static unsigned
-huffmanDecodeSymbol(const uint8_t *in, size_t *bp, const HuffmanTree *codetree, size_t inbitlength) {
-	unsigned treepos = 0, ct;
-	for (;;) {
-		if (*bp >= inbitlength)
-			return (unsigned)(-1); /*error: end of input memory reached without endcode*/
-		/*
-		decode the symbol from the tree. The "readBitFromStream" code is inlined in
-		the expression below because this is the biggest bottleneck while decoding
-		*/
-		ct = codetree->tree2d[(treepos << 1) + READBIT(*bp, in)];
-		++(*bp);
-		if (ct < codetree->numcodes)
-			return ct; /*the symbol is decoded, return it*/
-		else
-			treepos = ct - codetree->numcodes; /*symbol not yet decoded, instead move tree position*/
-
-		if (treepos >= codetree->numcodes)
-			return (unsigned)(-1); /*error: it appeared outside the codetree*/
-	}
-}
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-#ifdef LODEPNG_COMPILE_DECODER
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / Inflator (Decompressor)                                                / */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-/*get the tree of a deflated block with fixed tree, as specified in the deflate specification*/
-static void getTreeInflateFixed(HuffmanTree *tree_ll, HuffmanTree *tree_d) {
-	/*TODO: check for out of memory errors*/
-	generateFixedLitLenTree(tree_ll);
-	generateFixedDistanceTree(tree_d);
-}
-
-/*get the tree of a deflated block with dynamic tree, the tree itself is also Huffman compressed with a known tree*/
-static unsigned
-getTreeInflateDynamic(HuffmanTree *tree_ll, HuffmanTree *tree_d, const uint8_t *in, size_t *bp, size_t inlength) {
-	/*make sure that length values that aren't filled in will be 0, or a wrong tree will be generated*/
-	unsigned error = 0;
-	unsigned n, HLIT, HDIST, HCLEN, i;
-	size_t inbitlength = inlength * 8;
-
-	/*see comments in deflateDynamic for explanation of the context and these variables, it is analogous*/
-	unsigned *bitlen_ll = 0; /*lit,len code lengths*/
-	unsigned *bitlen_d  = 0; /*dist code lengths*/
-	/*code length code lengths ("clcl"), the bit lengths of the huffman tree used to compress bitlen_ll and bitlen_d*/
-	unsigned *bitlen_cl = 0;
-	HuffmanTree tree_cl; /*the code tree for code length codes (the huffman tree for compressed huffman trees)*/
-
-	if ((*bp) + 14 > (inlength << 3))
-		return 49; /*error: the bit pointer is or will go past the memory*/
-
-	/*number of literal/length codes + 257. Unlike the spec, the value 257 is added to it here already*/
-	HLIT = readBitsFromStream(bp, in, 5) + 257;
-	/*number of distance codes. Unlike the spec, the value 1 is added to it here already*/
-	HDIST = readBitsFromStream(bp, in, 5) + 1;
-	/*number of code length codes. Unlike the spec, the value 4 is added to it here already*/
-	HCLEN = readBitsFromStream(bp, in, 4) + 4;
-
-	if ((*bp) + HCLEN * 3 > (inlength << 3))
-		return 50; /*error: the bit pointer is or will go past the memory*/
-
-	HuffmanTree_init(&tree_cl);
-
-	while (!error) {
-		/*read the code length codes out of 3 * (amount of code length codes) bits*/
-
-		bitlen_cl = (unsigned *)lodepng_malloc(NUM_CODE_LENGTH_CODES * sizeof(unsigned));
-		if (!bitlen_cl)
-			ERROR_BREAK(83 /*alloc fail*/);
-
-		for (i = 0; i != NUM_CODE_LENGTH_CODES; ++i) {
-			if (i < HCLEN)
-				bitlen_cl[CLCL_ORDER[i]] = readBitsFromStream(bp, in, 3);
-			else
-				bitlen_cl[CLCL_ORDER[i]] = 0; /*if not, it must stay 0*/
-		}
-
-		error = HuffmanTree_makeFromLengths(&tree_cl, bitlen_cl, NUM_CODE_LENGTH_CODES, 7);
-		if (error)
-			break;
-
-		/*now we can use this tree to read the lengths for the tree that this function will return*/
-		bitlen_ll = (unsigned *)lodepng_malloc(NUM_DEFLATE_CODE_SYMBOLS * sizeof(unsigned));
-		bitlen_d  = (unsigned *)lodepng_malloc(NUM_DISTANCE_SYMBOLS * sizeof(unsigned));
-		if (!bitlen_ll || !bitlen_d)
-			ERROR_BREAK(83 /*alloc fail*/);
-		for (i = 0; i != NUM_DEFLATE_CODE_SYMBOLS; ++i)
-			bitlen_ll[i] = 0;
-		for (i = 0; i != NUM_DISTANCE_SYMBOLS; ++i)
-			bitlen_d[i] = 0;
-
-		/*i is the current symbol we're reading in the part that contains the code lengths of lit/len and dist codes*/
-		i = 0;
-		while (i < HLIT + HDIST) {
-			unsigned code = huffmanDecodeSymbol(in, bp, &tree_cl, inbitlength);
-			if (code <= 15) /*a length code*/
-			{
-				if (i < HLIT)
-					bitlen_ll[i] = code;
-				else
-					bitlen_d[i - HLIT] = code;
-				++i;
-			} else if (code == 16) /*repeat previous*/
-			{
-				unsigned replength = 3; /*read in the 2 bits that indicate repeat length (3-6)*/
-				unsigned value;         /*set value to the previous code*/
-
-				if (i == 0)
-					ERROR_BREAK(54); /*can't repeat previous if i is 0*/
-
-				if ((*bp + 2) > inbitlength)
-					ERROR_BREAK(50); /*error, bit pointer jumps past memory*/
-				replength += readBitsFromStream(bp, in, 2);
-
-				if (i < HLIT + 1)
-					value = bitlen_ll[i - 1];
-				else
-					value = bitlen_d[i - HLIT - 1];
-				/*repeat this value in the next lengths*/
-				for (n = 0; n < replength; ++n) {
-					if (i >= HLIT + HDIST)
-						ERROR_BREAK(13); /*error: i is larger than the amount of codes*/
-					if (i < HLIT)
-						bitlen_ll[i] = value;
-					else
-						bitlen_d[i - HLIT] = value;
-					++i;
-				}
-			} else if (code == 17) /*repeat "0" 3-10 times*/
-			{
-				unsigned replength = 3; /*read in the bits that indicate repeat length*/
-				if ((*bp + 3) > inbitlength)
-					ERROR_BREAK(50); /*error, bit pointer jumps past memory*/
-				replength += readBitsFromStream(bp, in, 3);
-
-				/*repeat this value in the next lengths*/
-				for (n = 0; n < replength; ++n) {
-					if (i >= HLIT + HDIST)
-						ERROR_BREAK(14); /*error: i is larger than the amount of codes*/
-
-					if (i < HLIT)
-						bitlen_ll[i] = 0;
-					else
-						bitlen_d[i - HLIT] = 0;
-					++i;
-				}
-			} else if (code == 18) /*repeat "0" 11-138 times*/
-			{
-				unsigned replength = 11; /*read in the bits that indicate repeat length*/
-				if ((*bp + 7) > inbitlength)
-					ERROR_BREAK(50); /*error, bit pointer jumps past memory*/
-				replength += readBitsFromStream(bp, in, 7);
-
-				/*repeat this value in the next lengths*/
-				for (n = 0; n < replength; ++n) {
-					if (i >= HLIT + HDIST)
-						ERROR_BREAK(15); /*error: i is larger than the amount of codes*/
-
-					if (i < HLIT)
-						bitlen_ll[i] = 0;
-					else
-						bitlen_d[i - HLIT] = 0;
-					++i;
-				}
-			} else /*if(code == (unsigned)(-1))*/ /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/
-			{
-				if (code == (unsigned)(-1)) {
-					/*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol
-					(10=no endcode, 11=wrong jump outside of tree)*/
-					error = (*bp) > inbitlength ? 10 : 11;
-				} else
-					error = 16; /*unexisting code, this can never happen*/
-				break;
-			}
-		}
-		if (error)
-			break;
-
-		if (bitlen_ll[256] == 0)
-			ERROR_BREAK(64); /*the length of the end code 256 must be larger than 0*/
-
-		/*now we've finally got HLIT and HDIST, so generate the code trees, and the function is done*/
-		error = HuffmanTree_makeFromLengths(tree_ll, bitlen_ll, NUM_DEFLATE_CODE_SYMBOLS, 15);
-		if (error)
-			break;
-		error = HuffmanTree_makeFromLengths(tree_d, bitlen_d, NUM_DISTANCE_SYMBOLS, 15);
-
-		break; /*end of error-while*/
-	}
-
-	lodepng_free(bitlen_cl);
-	lodepng_free(bitlen_ll);
-	lodepng_free(bitlen_d);
-	HuffmanTree_cleanup(&tree_cl);
-
-	return error;
-}
-
-/*inflate a block with dynamic of fixed Huffman tree*/
-static unsigned
-inflateHuffmanBlock(ucvector *out, const uint8_t *in, size_t *bp, size_t *pos, size_t inlength, unsigned btype) {
-	unsigned error = 0;
-	HuffmanTree tree_ll; /*the huffman tree for literal and length codes*/
-	HuffmanTree tree_d;  /*the huffman tree for distance codes*/
-	size_t inbitlength = inlength * 8;
-
-	HuffmanTree_init(&tree_ll);
-	HuffmanTree_init(&tree_d);
-
-	if (btype == 1)
-		getTreeInflateFixed(&tree_ll, &tree_d);
-	else if (btype == 2)
-		error = getTreeInflateDynamic(&tree_ll, &tree_d, in, bp, inlength);
-
-	while (!error) /*decode all symbols until end reached, breaks at end code*/
-	{
-		/*code_ll is literal, length or end code*/
-		unsigned code_ll = huffmanDecodeSymbol(in, bp, &tree_ll, inbitlength);
-		if (code_ll <= 255) /*literal symbol*/
-		{
-			/*ucvector_push_back would do the same, but for some reason the two lines below run 10% faster*/
-			if (!ucvector_resize(out, (*pos) + 1))
-				ERROR_BREAK(83 /*alloc fail*/);
-			out->data[*pos] = (uint8_t)code_ll;
-			++(*pos);
-		} else if (code_ll >= FIRST_LENGTH_CODE_INDEX && code_ll <= LAST_LENGTH_CODE_INDEX) /*length code*/
-		{
-			unsigned code_d, distance;
-			unsigned numextrabits_l, numextrabits_d; /*extra bits for length and distance*/
-			size_t start, forward, backward, length;
-
-			/*part 1: get length base*/
-			length = LENGTHBASE[code_ll - FIRST_LENGTH_CODE_INDEX];
-
-			/*part 2: get extra bits and add the value of that to length*/
-			numextrabits_l = LENGTHEXTRA[code_ll - FIRST_LENGTH_CODE_INDEX];
-			if ((*bp + numextrabits_l) > inbitlength)
-				ERROR_BREAK(51); /*error, bit pointer will jump past memory*/
-			length += readBitsFromStream(bp, in, numextrabits_l);
-
-			/*part 3: get distance code*/
-			code_d = huffmanDecodeSymbol(in, bp, &tree_d, inbitlength);
-			if (code_d > 29) {
-				if (code_ll == (unsigned)(-1)) /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/
-				{
-					/*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol
-					(10=no endcode, 11=wrong jump outside of tree)*/
-					error = (*bp) > inlength * 8 ? 10 : 11;
-				} else
-					error = 18; /*error: invalid distance code (30-31 are never used)*/
-				break;
-			}
-			distance = DISTANCEBASE[code_d];
-
-			/*part 4: get extra bits from distance*/
-			numextrabits_d = DISTANCEEXTRA[code_d];
-			if ((*bp + numextrabits_d) > inbitlength)
-				ERROR_BREAK(51); /*error, bit pointer will jump past memory*/
-			distance += readBitsFromStream(bp, in, numextrabits_d);
-
-			/*part 5: fill in all the out[n] values based on the length and dist*/
-			start = (*pos);
-			if (distance > start)
-				ERROR_BREAK(52); /*too long backward distance*/
-			backward = start - distance;
-
-			if (!ucvector_resize(out, (*pos) + length))
-				ERROR_BREAK(83 /*alloc fail*/);
-			if (distance < length) {
-				for (forward = 0; forward < length; ++forward) {
-					out->data[(*pos)++] = out->data[backward++];
-				}
-			} else {
-				memcpy(out->data + *pos, out->data + backward, length);
-				*pos += length;
-			}
-		} else if (code_ll == 256) {
-			break;                            /*end code, break the loop*/
-		} else /*if(code == (unsigned)(-1))*/ /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/
-		{
-			/*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol
-			(10=no endcode, 11=wrong jump outside of tree)*/
-			error = ((*bp) > inlength * 8) ? 10 : 11;
-			break;
-		}
-	}
-
-	HuffmanTree_cleanup(&tree_ll);
-	HuffmanTree_cleanup(&tree_d);
-
-	return error;
-}
-
-static unsigned inflateNoCompression(ucvector *out, const uint8_t *in, size_t *bp, size_t *pos, size_t inlength) {
-	size_t p;
-	unsigned LEN, NLEN, n, error = 0;
-
-	/*go to first boundary of byte*/
-	while (((*bp) & 0x7) != 0)
-		++(*bp);
-	p = (*bp) / 8; /*byte position*/
-
-	/*read LEN (2 bytes) and NLEN (2 bytes)*/
-	if (p + 4 >= inlength)
-		return 52; /*error, bit pointer will jump past memory*/
-	LEN = in[p] + 256u * in[p + 1];
-	p += 2;
-	NLEN = in[p] + 256u * in[p + 1];
-	p += 2;
-
-	/*check if 16-bit NLEN is really the one's complement of LEN*/
-	if (LEN + NLEN != 65535)
-		return 21; /*error: NLEN is not one's complement of LEN*/
-
-	if (!ucvector_resize(out, (*pos) + LEN))
-		return 83; /*alloc fail*/
-
-	/*read the literal data: LEN bytes are now stored in the out buffer*/
-	if (p + LEN > inlength)
-		return 23; /*error: reading outside of in buffer*/
-	for (n = 0; n < LEN; ++n)
-		out->data[(*pos)++] = in[p++];
-
-	(*bp) = p * 8;
-
-	return error;
-}
-
-static unsigned
-lodepng_inflatev(ucvector *out, const uint8_t *in, size_t insize, const LodePNGDecompressSettings *settings) {
-	/*bit pointer in the "in" data, current byte is bp >> 3, current bit is bp & 0x7 (from lsb to msb of the byte)*/
-	size_t bp       = 0;
-	unsigned BFINAL = 0;
-	size_t pos      = 0; /*byte position in the out buffer*/
-	unsigned error  = 0;
-
-	(void)settings;
-
-	while (!BFINAL) {
-		unsigned BTYPE;
-		if (bp + 2 >= insize * 8)
-			return 52; /*error, bit pointer will jump past memory*/
-		BFINAL = readBitFromStream(&bp, in);
-		BTYPE  = 1u * readBitFromStream(&bp, in);
-		BTYPE += 2u * readBitFromStream(&bp, in);
-
-		if (BTYPE == 3)
-			return 20; /*error: invalid BTYPE*/
-		else if (BTYPE == 0)
-			error = inflateNoCompression(out, in, &bp, &pos, insize); /*no compression*/
-		else
-			error = inflateHuffmanBlock(out, in, &bp, &pos, insize, BTYPE); /*compression, BTYPE 01 or 10*/
-
-		if (error)
-			return error;
-	}
-
-	return error;
-}
-
-unsigned lodepng_inflate(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGDecompressSettings *settings) {
-	unsigned error;
-	ucvector v;
-	ucvector_init_buffer(&v, *out, *outsize);
-	error    = lodepng_inflatev(&v, in, insize, settings);
-	*out     = v.data;
-	*outsize = v.size;
-	return error;
-}
-
-static unsigned inflate(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGDecompressSettings *settings) {
-	if (settings->custom_inflate) {
-		return settings->custom_inflate(out, outsize, in, insize, settings);
-	} else {
-		return lodepng_inflate(out, outsize, in, insize, settings);
-	}
-}
-
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-#ifdef LODEPNG_COMPILE_ENCODER
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / Deflator (Compressor)                                                  / */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-static const size_t MAX_SUPPORTED_DEFLATE_LENGTH = 258;
-
-/*bitlen is the size in bits of the code*/
-static void addHuffmanSymbol(size_t *bp, ucvector *compressed, unsigned code, unsigned bitlen) {
-	addBitsToStreamReversed(bp, compressed, code, bitlen);
-}
-
-/*search the index in the array, that has the largest value smaller than or equal to the given value,
-given array must be sorted (if no value is smaller, it returns the size of the given array)*/
-static size_t searchCodeIndex(const unsigned *array, size_t array_size, size_t value) {
-	/*binary search (only small gain over linear). TODO: use CPU log2 instruction for getting symbols instead*/
-	size_t left  = 1;
-	size_t right = array_size - 1;
-
-	while (left <= right) {
-		size_t mid = (left + right) >> 1;
-		if (array[mid] >= value)
-			right = mid - 1;
-		else
-			left = mid + 1;
-	}
-	if (left >= array_size || array[left] > value)
-		left--;
-	return left;
-}
-
-static void addLengthDistance(uivector *values, size_t length, size_t distance) {
-	/*values in encoded vector are those used by deflate:
-	0-255: literal bytes
-	256: end
-	257-285: length/distance pair (length code, followed by extra length bits, distance code, extra distance bits)
-	286-287: invalid*/
-
-	unsigned length_code    = (unsigned)searchCodeIndex(LENGTHBASE, 29, length);
-	unsigned extra_length   = (unsigned)(length - LENGTHBASE[length_code]);
-	unsigned dist_code      = (unsigned)searchCodeIndex(DISTANCEBASE, 30, distance);
-	unsigned extra_distance = (unsigned)(distance - DISTANCEBASE[dist_code]);
-
-	uivector_push_back(values, length_code + FIRST_LENGTH_CODE_INDEX);
-	uivector_push_back(values, extra_length);
-	uivector_push_back(values, dist_code);
-	uivector_push_back(values, extra_distance);
-}
-
-/*3 bytes of data get encoded into two bytes. The hash cannot use more than 3
-bytes as input because 3 is the minimum match length for deflate*/
-static const unsigned HASH_NUM_VALUES = 65536;
-static const unsigned HASH_BIT_MASK   = 65535; /*HASH_NUM_VALUES - 1, but C90 does not like that as initializer*/
-
-typedef struct Hash {
-	int *head; /*hash value to head circular pos - can be outdated if went around window*/
-	/*circular pos to prev circular pos*/
-	unsigned short *chain;
-	int *val; /*circular pos to hash value*/
-
-	/*TODO: do this not only for zeros but for any repeated byte. However for PNG
-	it's always going to be the zeros that dominate, so not important for PNG*/
-	int *headz;             /*similar to head, but for chainz*/
-	unsigned short *chainz; /*those with same amount of zeros*/
-	unsigned short *zeros;  /*length of zeros streak, used as a second hash chain*/
-} Hash;
-
-static unsigned hash_init(Hash *hash, unsigned windowsize) {
-	unsigned i;
-	hash->head  = (int *)lodepng_malloc(sizeof(int) * HASH_NUM_VALUES);
-	hash->val   = (int *)lodepng_malloc(sizeof(int) * windowsize);
-	hash->chain = (unsigned short *)lodepng_malloc(sizeof(unsigned short) * windowsize);
-
-	hash->zeros  = (unsigned short *)lodepng_malloc(sizeof(unsigned short) * windowsize);
-	hash->headz  = (int *)lodepng_malloc(sizeof(int) * (MAX_SUPPORTED_DEFLATE_LENGTH + 1));
-	hash->chainz = (unsigned short *)lodepng_malloc(sizeof(unsigned short) * windowsize);
-
-	if (!hash->head || !hash->chain || !hash->val || !hash->headz || !hash->chainz || !hash->zeros) {
-		return 83; /*alloc fail*/
-	}
-
-	/*initialize hash table*/
-	for (i = 0; i != HASH_NUM_VALUES; ++i)
-		hash->head[i] = -1;
-	for (i = 0; i != windowsize; ++i)
-		hash->val[i] = -1;
-	for (i = 0; i != windowsize; ++i)
-		hash->chain[i] = i; /*same value as index indicates uninitialized*/
-
-	for (i = 0; i <= MAX_SUPPORTED_DEFLATE_LENGTH; ++i)
-		hash->headz[i] = -1;
-	for (i = 0; i != windowsize; ++i)
-		hash->chainz[i] = i; /*same value as index indicates uninitialized*/
-
-	return 0;
-}
-
-static void hash_cleanup(Hash *hash) {
-	lodepng_free(hash->head);
-	lodepng_free(hash->val);
-	lodepng_free(hash->chain);
-
-	lodepng_free(hash->zeros);
-	lodepng_free(hash->headz);
-	lodepng_free(hash->chainz);
-}
-
-static unsigned getHash(const uint8_t *data, size_t size, size_t pos) {
-	unsigned result = 0;
-	if (pos + 2 < size) {
-		/*A simple shift and xor hash is used. Since the data of PNGs is dominated
-		by zeroes due to the filters, a better hash does not have a significant
-		effect on speed in traversing the chain, and causes more time spend on
-		calculating the hash.*/
-		result ^= (unsigned)(data[pos + 0] << 0u);
-		result ^= (unsigned)(data[pos + 1] << 4u);
-		result ^= (unsigned)(data[pos + 2] << 8u);
-	} else {
-		size_t amount, i;
-		if (pos >= size)
-			return 0;
-		amount = size - pos;
-		for (i = 0; i != amount; ++i)
-			result ^= (unsigned)(data[pos + i] << (i * 8u));
-	}
-	return result & HASH_BIT_MASK;
-}
-
-static unsigned countZeros(const uint8_t *data, size_t size, size_t pos) {
-	const uint8_t *start = data + pos;
-	const uint8_t *end   = start + MAX_SUPPORTED_DEFLATE_LENGTH;
-	if (end > data + size)
-		end = data + size;
-	data = start;
-	while (data != end && *data == 0)
-		++data;
-	/*subtracting two addresses returned as 32-bit number (max value is MAX_SUPPORTED_DEFLATE_LENGTH)*/
-	return (unsigned)(data - start);
-}
-
-/*wpos = pos & (windowsize - 1)*/
-static void updateHashChain(Hash *hash, size_t wpos, unsigned hashval, unsigned short numzeros) {
-	hash->val[wpos] = (int)hashval;
-	if (hash->head[hashval] != -1)
-		hash->chain[wpos] = hash->head[hashval];
-	hash->head[hashval] = wpos;
-
-	hash->zeros[wpos] = numzeros;
-	if (hash->headz[numzeros] != -1)
-		hash->chainz[wpos] = hash->headz[numzeros];
-	hash->headz[numzeros] = wpos;
-}
-
-/*
-LZ77-encode the data. Return value is error code. The input are raw bytes, the output
-is in the form of unsigned integers with codes representing for example literal bytes, or
-length/distance pairs.
-It uses a hash table technique to let it encode faster. When doing LZ77 encoding, a
-sliding window (of windowsize) is used, and all past bytes in that window can be used as
-the "dictionary". A brute force search through all possible distances would be slow, and
-this hash technique is one out of several ways to speed this up.
-*/
-static unsigned encodeLZ77(
-	uivector *out, Hash *hash, const uint8_t *in, size_t inpos, size_t insize, unsigned windowsize,
-	unsigned minmatch, unsigned nicematch, unsigned lazymatching) {
-	size_t pos;
-	unsigned i, error = 0;
-	/*for large window lengths, assume the user wants no compression loss. Otherwise, max hash chain length speedup.*/
-	unsigned maxchainlength = windowsize >= 8192 ? windowsize : windowsize / 8;
-	unsigned maxlazymatch   = windowsize >= 8192 ? MAX_SUPPORTED_DEFLATE_LENGTH : 64;
-
-	unsigned usezeros = 1; /*not sure if setting it to false for windowsize < 8192 is better or worse*/
-	unsigned numzeros = 0;
-
-	unsigned offset; /*the offset represents the distance in LZ77 terminology*/
-	unsigned length;
-	unsigned lazy       = 0;
-	unsigned lazylength = 0, lazyoffset = 0;
-	unsigned hashval;
-	unsigned current_offset, current_length;
-	unsigned prev_offset;
-	const uint8_t *lastptr, *foreptr, *backptr;
-	unsigned hashpos;
-
-	if (windowsize == 0 || windowsize > 32768)
-		return 60; /*error: windowsize smaller/larger than allowed*/
-	if ((windowsize & (windowsize - 1)) != 0)
-		return 90; /*error: must be power of two*/
-
-	if (nicematch > MAX_SUPPORTED_DEFLATE_LENGTH)
-		nicematch = MAX_SUPPORTED_DEFLATE_LENGTH;
-
-	for (pos = inpos; pos < insize; ++pos) {
-		size_t wpos          = pos & (windowsize - 1); /*position for in 'circular' hash buffers*/
-		unsigned chainlength = 0;
-
-		hashval = getHash(in, insize, pos);
-
-		if (usezeros && hashval == 0) {
-			if (numzeros == 0)
-				numzeros = countZeros(in, insize, pos);
-			else if (pos + numzeros > insize || in[pos + numzeros - 1] != 0)
-				--numzeros;
-		} else {
-			numzeros = 0;
-		}
-
-		updateHashChain(hash, wpos, hashval, numzeros);
-
-		/*the length and offset found for the current position*/
-		length = 0;
-		offset = 0;
-
-		hashpos = hash->chain[wpos];
-
-		lastptr = &in[insize < pos + MAX_SUPPORTED_DEFLATE_LENGTH ? insize : pos + MAX_SUPPORTED_DEFLATE_LENGTH];
-
-		/*search for the longest string*/
-		prev_offset = 0;
-		for (;;) {
-			if (chainlength++ >= maxchainlength)
-				break;
-			current_offset = hashpos <= wpos ? wpos - hashpos : wpos - hashpos + windowsize;
-
-			if (current_offset < prev_offset)
-				break; /*stop when went completely around the circular buffer*/
-			prev_offset = current_offset;
-			if (current_offset > 0) {
-				/*test the next characters*/
-				foreptr = &in[pos];
-				backptr = &in[pos - current_offset];
-
-				/*common case in PNGs is lots of zeros. Quickly skip over them as a speedup*/
-				if (numzeros >= 3) {
-					unsigned skip = hash->zeros[hashpos];
-					if (skip > numzeros)
-						skip = numzeros;
-					backptr += skip;
-					foreptr += skip;
-				}
-
-				while (foreptr != lastptr && *backptr == *foreptr) /*maximum supported length by deflate is max length*/
-				{
-					++backptr;
-					++foreptr;
-				}
-				current_length = (unsigned)(foreptr - &in[pos]);
-
-				if (current_length > length) {
-					length = current_length; /*the longest length*/
-					offset = current_offset; /*the offset that is related to this longest length*/
-					/*jump out once a length of max length is found (speed gain). This also jumps
-					out if length is MAX_SUPPORTED_DEFLATE_LENGTH*/
-					if (current_length >= nicematch)
-						break;
-				}
-			}
-
-			if (hashpos == hash->chain[hashpos])
-				break;
-
-			if (numzeros >= 3 && length > numzeros) {
-				hashpos = hash->chainz[hashpos];
-				if (hash->zeros[hashpos] != numzeros)
-					break;
-			} else {
-				hashpos = hash->chain[hashpos];
-				/*outdated hash value, happens if particular value was not encountered in whole last window*/
-				if (hash->val[hashpos] != (int)hashval)
-					break;
-			}
-		}
-
-		if (lazymatching) {
-			if (!lazy && length >= 3 && length <= maxlazymatch && length < MAX_SUPPORTED_DEFLATE_LENGTH) {
-				lazy       = 1;
-				lazylength = length;
-				lazyoffset = offset;
-				continue; /*try the next byte*/
-			}
-			if (lazy) {
-				lazy = 0;
-				if (pos == 0)
-					ERROR_BREAK(81);
-				if (length > lazylength + 1) {
-					/*push the previous character as literal*/
-					if (!uivector_push_back(out, in[pos - 1]))
-						ERROR_BREAK(83 /*alloc fail*/);
-				} else {
-					length = lazylength;
-					offset = lazyoffset;
-					hash->head[hashval] =
-						-1; /*the same hashchain update will be done, this ensures no wrong alteration*/
-					hash->headz[numzeros] = -1; /*idem*/
-					--pos;
-				}
-			}
-		}
-		if (length >= 3 && offset > windowsize)
-			ERROR_BREAK(86 /*too big (or overflown negative) offset*/);
-
-		/*encode it as length/distance pair or literal value*/
-		if (length < 3) /*only lengths of 3 or higher are supported as length/distance pair*/
-		{
-			if (!uivector_push_back(out, in[pos]))
-				ERROR_BREAK(83 /*alloc fail*/);
-		} else if (length < minmatch || (length == 3 && offset > 4096)) {
-			/*compensate for the fact that longer offsets have more extra bits, a
-			length of only 3 may be not worth it then*/
-			if (!uivector_push_back(out, in[pos]))
-				ERROR_BREAK(83 /*alloc fail*/);
-		} else {
-			addLengthDistance(out, length, offset);
-			for (i = 1; i < length; ++i) {
-				++pos;
-				wpos    = pos & (windowsize - 1);
-				hashval = getHash(in, insize, pos);
-				if (usezeros && hashval == 0) {
-					if (numzeros == 0)
-						numzeros = countZeros(in, insize, pos);
-					else if (pos + numzeros > insize || in[pos + numzeros - 1] != 0)
-						--numzeros;
-				} else {
-					numzeros = 0;
-				}
-				updateHashChain(hash, wpos, hashval, numzeros);
-			}
-		}
-	} /*end of the loop through each character of input*/
-
-	return error;
-}
-
-/* /////////////////////////////////////////////////////////////////////////// */
-
-static unsigned deflateNoCompression(ucvector *out, const uint8_t *data, size_t datasize) {
-	/*non compressed deflate block data: 1 bit BFINAL,2 bits BTYPE,(5 bits): it jumps to start of next byte,
-	2 bytes LEN, 2 bytes NLEN, LEN bytes literal DATA*/
-
-	size_t i, j, numdeflateblocks = (datasize + 65534) / 65535;
-	unsigned datapos = 0;
-	for (i = 0; i != numdeflateblocks; ++i) {
-		unsigned BFINAL, BTYPE, LEN, NLEN;
-		uint8_t firstbyte;
-
-		BFINAL = (i == numdeflateblocks - 1);
-		BTYPE  = 0;
-
-		firstbyte = (uint8_t)(BFINAL + ((BTYPE & 1) << 1) + ((BTYPE & 2) << 1));
-		ucvector_push_back(out, firstbyte);
-
-		LEN = 65535;
-		if (datasize - datapos < 65535)
-			LEN = (unsigned)datasize - datapos;
-		NLEN = 65535 - LEN;
-
-		ucvector_push_back(out, (uint8_t)(LEN & 255));
-		ucvector_push_back(out, (uint8_t)(LEN >> 8));
-		ucvector_push_back(out, (uint8_t)(NLEN & 255));
-		ucvector_push_back(out, (uint8_t)(NLEN >> 8));
-
-		/*Decompressed data*/
-		for (j = 0; j < 65535 && datapos < datasize; ++j) {
-			ucvector_push_back(out, data[datapos++]);
-		}
-	}
-
-	return 0;
-}
-
-/*
-write the lz77-encoded data, which has lit, len and dist codes, to compressed stream using huffman trees.
-tree_ll: the tree for lit and len codes.
-tree_d: the tree for distance codes.
-*/
-static void writeLZ77data(
-	size_t *bp, ucvector *out, const uivector *lz77_encoded, const HuffmanTree *tree_ll, const HuffmanTree *tree_d) {
-	size_t i = 0;
-	for (i = 0; i != lz77_encoded->size; ++i) {
-		unsigned val = lz77_encoded->data[i];
-		addHuffmanSymbol(bp, out, HuffmanTree_getCode(tree_ll, val), HuffmanTree_getLength(tree_ll, val));
-		if (val > 256) /*for a length code, 3 more things have to be added*/
-		{
-			unsigned length_index        = val - FIRST_LENGTH_CODE_INDEX;
-			unsigned n_length_extra_bits = LENGTHEXTRA[length_index];
-			unsigned length_extra_bits   = lz77_encoded->data[++i];
-
-			unsigned distance_code = lz77_encoded->data[++i];
-
-			unsigned distance_index        = distance_code;
-			unsigned n_distance_extra_bits = DISTANCEEXTRA[distance_index];
-			unsigned distance_extra_bits   = lz77_encoded->data[++i];
-
-			addBitsToStream(bp, out, length_extra_bits, n_length_extra_bits);
-			addHuffmanSymbol(
-				bp, out, HuffmanTree_getCode(tree_d, distance_code), HuffmanTree_getLength(tree_d, distance_code));
-			addBitsToStream(bp, out, distance_extra_bits, n_distance_extra_bits);
-		}
-	}
-}
-
-/*Deflate for a block of type "dynamic", that is, with freely, optimally, created huffman trees*/
-static unsigned deflateDynamic(
-	ucvector *out, size_t *bp, Hash *hash, const uint8_t *data, size_t datapos, size_t dataend,
-	const LodePNGCompressSettings *settings, unsigned final) {
-	unsigned error = 0;
-
-	/*
-	A block is compressed as follows: The PNG data is lz77 encoded, resulting in
-	literal bytes and length/distance pairs. This is then huffman compressed with
-	two huffman trees. One huffman tree is used for the lit and len values ("ll"),
-	another huffman tree is used for the dist values ("d"). These two trees are
-	stored using their code lengths, and to compress even more these code lengths
-	are also run-length encoded and huffman compressed. This gives a huffman tree
-	of code lengths "cl". The code lenghts used to describe this third tree are
-	the code length code lengths ("clcl").
-	*/
-
-	/*The lz77 encoded data, represented with integers since there will also be length and distance codes in it*/
-	uivector lz77_encoded;
-	HuffmanTree tree_ll;     /*tree for lit,len values*/
-	HuffmanTree tree_d;      /*tree for distance codes*/
-	HuffmanTree tree_cl;     /*tree for encoding the code lengths representing tree_ll and tree_d*/
-	uivector frequencies_ll; /*frequency of lit,len codes*/
-	uivector frequencies_d;  /*frequency of dist codes*/
-	uivector frequencies_cl; /*frequency of code length codes*/
-	uivector bitlen_lld;     /*lit,len,dist code lenghts (int bits), literally (without repeat codes).*/
-	uivector bitlen_lld_e;   /*bitlen_lld encoded with repeat codes (this is a rudemtary run length compression)*/
-	/*bitlen_cl is the code length code lengths ("clcl"). The bit lengths of codes to represent tree_cl
-	(these are written as is in the file, it would be crazy to compress these using yet another huffman
-	tree that needs to be represented by yet another set of code lengths)*/
-	uivector bitlen_cl;
-	size_t datasize = dataend - datapos;
-
-	/*
-	Due to the huffman compression of huffman tree representations ("two levels"), there are some anologies:
-	bitlen_lld is to tree_cl what data is to tree_ll and tree_d.
-	bitlen_lld_e is to bitlen_lld what lz77_encoded is to data.
-	bitlen_cl is to bitlen_lld_e what bitlen_lld is to lz77_encoded.
-	*/
-
-	unsigned BFINAL = final;
-	size_t numcodes_ll, numcodes_d, i;
-	unsigned HLIT, HDIST, HCLEN;
-
-	uivector_init(&lz77_encoded);
-	HuffmanTree_init(&tree_ll);
-	HuffmanTree_init(&tree_d);
-	HuffmanTree_init(&tree_cl);
-	uivector_init(&frequencies_ll);
-	uivector_init(&frequencies_d);
-	uivector_init(&frequencies_cl);
-	uivector_init(&bitlen_lld);
-	uivector_init(&bitlen_lld_e);
-	uivector_init(&bitlen_cl);
-
-	/*This while loop never loops due to a break at the end, it is here to
-	allow breaking out of it to the cleanup phase on error conditions.*/
-	while (!error) {
-		if (settings->use_lz77) {
-			error = encodeLZ77(
-				&lz77_encoded,
-				hash,
-				data,
-				datapos,
-				dataend,
-				settings->windowsize,
-				settings->minmatch,
-				settings->nicematch,
-				settings->lazymatching);
-			if (error)
-				break;
-		} else {
-			if (!uivector_resize(&lz77_encoded, datasize))
-				ERROR_BREAK(83 /*alloc fail*/);
-			for (i = datapos; i < dataend; ++i)
-				lz77_encoded.data[i - datapos] = data[i]; /*no LZ77, but still will be Huffman compressed*/
-		}
-
-		if (!uivector_resizev(&frequencies_ll, 286, 0))
-			ERROR_BREAK(83 /*alloc fail*/);
-		if (!uivector_resizev(&frequencies_d, 30, 0))
-			ERROR_BREAK(83 /*alloc fail*/);
-
-		/*Count the frequencies of lit, len and dist codes*/
-		for (i = 0; i != lz77_encoded.size; ++i) {
-			unsigned symbol = lz77_encoded.data[i];
-			++frequencies_ll.data[symbol];
-			if (symbol > 256) {
-				unsigned dist = lz77_encoded.data[i + 2];
-				++frequencies_d.data[dist];
-				i += 3;
-			}
-		}
-		frequencies_ll.data[256] = 1; /*there will be exactly 1 end code, at the end of the block*/
-
-		/*Make both huffman trees, one for the lit and len codes, one for the dist codes*/
-		error = HuffmanTree_makeFromFrequencies(&tree_ll, frequencies_ll.data, 257, frequencies_ll.size, 15);
-		if (error)
-			break;
-		/*2, not 1, is chosen for mincodes: some buggy PNG decoders require at least 2 symbols in the dist tree*/
-		error = HuffmanTree_makeFromFrequencies(&tree_d, frequencies_d.data, 2, frequencies_d.size, 15);
-		if (error)
-			break;
-
-		numcodes_ll = tree_ll.numcodes;
-		if (numcodes_ll > 286)
-			numcodes_ll = 286;
-		numcodes_d = tree_d.numcodes;
-		if (numcodes_d > 30)
-			numcodes_d = 30;
-		/*store the code lengths of both generated trees in bitlen_lld*/
-		for (i = 0; i != numcodes_ll; ++i)
-			uivector_push_back(&bitlen_lld, HuffmanTree_getLength(&tree_ll, (unsigned)i));
-		for (i = 0; i != numcodes_d; ++i)
-			uivector_push_back(&bitlen_lld, HuffmanTree_getLength(&tree_d, (unsigned)i));
-
-		/*run-length compress bitlen_ldd into bitlen_lld_e by using repeat codes 16 (copy length 3-6 times),
-		17 (3-10 zeroes), 18 (11-138 zeroes)*/
-		for (i = 0; i != (unsigned)bitlen_lld.size; ++i) {
-			unsigned j = 0; /*amount of repititions*/
-			while (i + j + 1 < (unsigned)bitlen_lld.size && bitlen_lld.data[i + j + 1] == bitlen_lld.data[i])
-				++j;
-
-			if (bitlen_lld.data[i] == 0 && j >= 2) /*repeat code for zeroes*/
-			{
-				++j;         /*include the first zero*/
-				if (j <= 10) /*repeat code 17 supports max 10 zeroes*/
-				{
-					uivector_push_back(&bitlen_lld_e, 17);
-					uivector_push_back(&bitlen_lld_e, j - 3);
-				} else /*repeat code 18 supports max 138 zeroes*/
-				{
-					if (j > 138)
-						j = 138;
-					uivector_push_back(&bitlen_lld_e, 18);
-					uivector_push_back(&bitlen_lld_e, j - 11);
-				}
-				i += (j - 1);
-			} else if (j >= 3) /*repeat code for value other than zero*/
-			{
-				size_t k;
-				unsigned num = j / 6, rest = j % 6;
-				uivector_push_back(&bitlen_lld_e, bitlen_lld.data[i]);
-				for (k = 0; k < num; ++k) {
-					uivector_push_back(&bitlen_lld_e, 16);
-					uivector_push_back(&bitlen_lld_e, 6 - 3);
-				}
-				if (rest >= 3) {
-					uivector_push_back(&bitlen_lld_e, 16);
-					uivector_push_back(&bitlen_lld_e, rest - 3);
-				} else
-					j -= rest;
-				i += j;
-			} else /*too short to benefit from repeat code*/
-			{
-				uivector_push_back(&bitlen_lld_e, bitlen_lld.data[i]);
-			}
-		}
-
-		/*generate tree_cl, the huffmantree of huffmantrees*/
-
-		if (!uivector_resizev(&frequencies_cl, NUM_CODE_LENGTH_CODES, 0))
-			ERROR_BREAK(83 /*alloc fail*/);
-		for (i = 0; i != bitlen_lld_e.size; ++i) {
-			++frequencies_cl.data[bitlen_lld_e.data[i]];
-			/*after a repeat code come the bits that specify the number of repetitions,
-			those don't need to be in the frequencies_cl calculation*/
-			if (bitlen_lld_e.data[i] >= 16)
-				++i;
-		}
-
-		error =
-			HuffmanTree_makeFromFrequencies(&tree_cl, frequencies_cl.data, frequencies_cl.size, frequencies_cl.size, 7);
-		if (error)
-			break;
-
-		if (!uivector_resize(&bitlen_cl, tree_cl.numcodes))
-			ERROR_BREAK(83 /*alloc fail*/);
-		for (i = 0; i != tree_cl.numcodes; ++i) {
-			/*lenghts of code length tree is in the order as specified by deflate*/
-			bitlen_cl.data[i] = HuffmanTree_getLength(&tree_cl, CLCL_ORDER[i]);
-		}
-		while (bitlen_cl.data[bitlen_cl.size - 1] == 0 && bitlen_cl.size > 4) {
-			/*remove zeros at the end, but minimum size must be 4*/
-			if (!uivector_resize(&bitlen_cl, bitlen_cl.size - 1))
-				ERROR_BREAK(83 /*alloc fail*/);
-		}
-		if (error)
-			break;
-
-		/*
-		Write everything into the output
-
-		After the BFINAL and BTYPE, the dynamic block consists out of the following:
-		- 5 bits HLIT, 5 bits HDIST, 4 bits HCLEN
-		- (HCLEN+4)*3 bits code lengths of code length alphabet
-		- HLIT + 257 code lenghts of lit/length alphabet (encoded using the code length
-		  alphabet, + possible repetition codes 16, 17, 18)
-		- HDIST + 1 code lengths of distance alphabet (encoded using the code length
-		  alphabet, + possible repetition codes 16, 17, 18)
-		- compressed data
-		- 256 (end code)
-		*/
-
-		/*Write block type*/
-		addBitToStream(bp, out, BFINAL);
-		addBitToStream(bp, out, 0); /*first bit of BTYPE "dynamic"*/
-		addBitToStream(bp, out, 1); /*second bit of BTYPE "dynamic"*/
-
-		/*write the HLIT, HDIST and HCLEN values*/
-		HLIT  = (unsigned)(numcodes_ll - 257);
-		HDIST = (unsigned)(numcodes_d - 1);
-		HCLEN = (unsigned)bitlen_cl.size - 4;
-		/*trim zeroes for HCLEN. HLIT and HDIST were already trimmed at tree creation*/
-		while (!bitlen_cl.data[HCLEN + 4 - 1] && HCLEN > 0)
-			--HCLEN;
-		addBitsToStream(bp, out, HLIT, 5);
-		addBitsToStream(bp, out, HDIST, 5);
-		addBitsToStream(bp, out, HCLEN, 4);
-
-		/*write the code lenghts of the code length alphabet*/
-		for (i = 0; i != HCLEN + 4; ++i)
-			addBitsToStream(bp, out, bitlen_cl.data[i], 3);
-
-		/*write the lenghts of the lit/len AND the dist alphabet*/
-		for (i = 0; i != bitlen_lld_e.size; ++i) {
-			addHuffmanSymbol(
-				bp,
-				out,
-				HuffmanTree_getCode(&tree_cl, bitlen_lld_e.data[i]),
-				HuffmanTree_getLength(&tree_cl, bitlen_lld_e.data[i]));
-			/*extra bits of repeat codes*/
-			if (bitlen_lld_e.data[i] == 16)
-				addBitsToStream(bp, out, bitlen_lld_e.data[++i], 2);
-			else if (bitlen_lld_e.data[i] == 17)
-				addBitsToStream(bp, out, bitlen_lld_e.data[++i], 3);
-			else if (bitlen_lld_e.data[i] == 18)
-				addBitsToStream(bp, out, bitlen_lld_e.data[++i], 7);
-		}
-
-		/*write the compressed data symbols*/
-		writeLZ77data(bp, out, &lz77_encoded, &tree_ll, &tree_d);
-		/*error: the length of the end code 256 must be larger than 0*/
-		if (HuffmanTree_getLength(&tree_ll, 256) == 0)
-			ERROR_BREAK(64);
-
-		/*write the end code*/
-		addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, 256), HuffmanTree_getLength(&tree_ll, 256));
-
-		break; /*end of error-while*/
-	}
-
-	/*cleanup*/
-	uivector_cleanup(&lz77_encoded);
-	HuffmanTree_cleanup(&tree_ll);
-	HuffmanTree_cleanup(&tree_d);
-	HuffmanTree_cleanup(&tree_cl);
-	uivector_cleanup(&frequencies_ll);
-	uivector_cleanup(&frequencies_d);
-	uivector_cleanup(&frequencies_cl);
-	uivector_cleanup(&bitlen_lld_e);
-	uivector_cleanup(&bitlen_lld);
-	uivector_cleanup(&bitlen_cl);
-
-	return error;
-}
-
-static unsigned deflateFixed(
-	ucvector *out, size_t *bp, Hash *hash, const uint8_t *data, size_t datapos, size_t dataend,
-	const LodePNGCompressSettings *settings, unsigned final) {
-	HuffmanTree tree_ll; /*tree for literal values and length codes*/
-	HuffmanTree tree_d;  /*tree for distance codes*/
-
-	unsigned BFINAL = final;
-	unsigned error  = 0;
-	size_t i;
-
-	HuffmanTree_init(&tree_ll);
-	HuffmanTree_init(&tree_d);
-
-	generateFixedLitLenTree(&tree_ll);
-	generateFixedDistanceTree(&tree_d);
-
-	addBitToStream(bp, out, BFINAL);
-	addBitToStream(bp, out, 1); /*first bit of BTYPE*/
-	addBitToStream(bp, out, 0); /*second bit of BTYPE*/
-
-	if (settings->use_lz77) /*LZ77 encoded*/
-	{
-		uivector lz77_encoded;
-		uivector_init(&lz77_encoded);
-		error = encodeLZ77(
-			&lz77_encoded,
-			hash,
-			data,
-			datapos,
-			dataend,
-			settings->windowsize,
-			settings->minmatch,
-			settings->nicematch,
-			settings->lazymatching);
-		if (!error)
-			writeLZ77data(bp, out, &lz77_encoded, &tree_ll, &tree_d);
-		uivector_cleanup(&lz77_encoded);
-	} else /*no LZ77, but still will be Huffman compressed*/
-	{
-		for (i = datapos; i < dataend; ++i) {
-			addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, data[i]), HuffmanTree_getLength(&tree_ll, data[i]));
-		}
-	}
-	/*add END code*/
-	if (!error)
-		addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, 256), HuffmanTree_getLength(&tree_ll, 256));
-
-	/*cleanup*/
-	HuffmanTree_cleanup(&tree_ll);
-	HuffmanTree_cleanup(&tree_d);
-
-	return error;
-}
-
-static unsigned
-lodepng_deflatev(ucvector *out, const uint8_t *in, size_t insize, const LodePNGCompressSettings *settings) {
-	unsigned error = 0;
-	size_t i, blocksize, numdeflateblocks;
-	size_t bp = 0; /*the bit pointer*/
-	Hash hash;
-
-	if (settings->btype > 2)
-		return 61;
-	else if (settings->btype == 0)
-		return deflateNoCompression(out, in, insize);
-	else if (settings->btype == 1)
-		blocksize = insize;
-	else /*if(settings->btype == 2)*/
-	{
-		/*on PNGs, deflate blocks of 65-262k seem to give most dense encoding*/
-		blocksize = insize / 8 + 8;
-		if (blocksize < 65536)
-			blocksize = 65536;
-		if (blocksize > 262144)
-			blocksize = 262144;
-	}
-
-	numdeflateblocks = (insize + blocksize - 1) / blocksize;
-	if (numdeflateblocks == 0)
-		numdeflateblocks = 1;
-
-	error = hash_init(&hash, settings->windowsize);
-	if (error)
-		return error;
-
-	for (i = 0; i != numdeflateblocks && !error; ++i) {
-		unsigned final = (i == numdeflateblocks - 1);
-		size_t start   = i * blocksize;
-		size_t end     = start + blocksize;
-		if (end > insize)
-			end = insize;
-
-		if (settings->btype == 1)
-			error = deflateFixed(out, &bp, &hash, in, start, end, settings, final);
-		else if (settings->btype == 2)
-			error = deflateDynamic(out, &bp, &hash, in, start, end, settings, final);
-	}
-
-	hash_cleanup(&hash);
-
-	return error;
-}
-
-unsigned lodepng_deflate(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGCompressSettings *settings) {
-	unsigned error;
-	ucvector v;
-	ucvector_init_buffer(&v, *out, *outsize);
-	error    = lodepng_deflatev(&v, in, insize, settings);
-	*out     = v.data;
-	*outsize = v.size;
-	return error;
-}
-
-static unsigned deflate(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGCompressSettings *settings) {
-	if (settings->custom_deflate) {
-		return settings->custom_deflate(out, outsize, in, insize, settings);
-	} else {
-		return lodepng_deflate(out, outsize, in, insize, settings);
-	}
-}
-
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / Adler32                                                                  */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-static unsigned update_adler32(unsigned adler, const uint8_t *data, unsigned len) {
-	unsigned s1 = adler & 0xffff;
-	unsigned s2 = (adler >> 16) & 0xffff;
-
-	while (len > 0) {
-		/*at least 5550 sums can be done before the sums overflow, saving a lot of module divisions*/
-		unsigned amount = len > 5550 ? 5550 : len;
-		len -= amount;
-		while (amount > 0) {
-			s1 += (*data++);
-			s2 += s1;
-			--amount;
-		}
-		s1 %= 65521;
-		s2 %= 65521;
-	}
-
-	return (s2 << 16) | s1;
-}
-
-/*Return the adler32 of the bytes data[0..len-1]*/
-static unsigned adler32(const uint8_t *data, unsigned len) { return update_adler32(1L, data, len); }
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / Zlib                                                                   / */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-#ifdef LODEPNG_COMPILE_DECODER
-
-unsigned lodepng_zlib_decompress(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGDecompressSettings *settings) {
-	unsigned error = 0;
-	unsigned CM, CINFO, FDICT;
-
-	if (insize < 2)
-		return 53; /*error, size of zlib data too small*/
-	/*read information from zlib header*/
-	if ((in[0] * 256 + in[1]) % 31 != 0) {
-		/*error: 256 * in[0] + in[1] must be a multiple of 31, the FCHECK value is supposed to be made that way*/
-		return 24;
-	}
-
-	CM    = in[0] & 15;
-	CINFO = (in[0] >> 4) & 15;
-	/*FCHECK = in[1] & 31;*/ /*FCHECK is already tested above*/
-	FDICT = (in[1] >> 5) & 1;
-	/*FLEVEL = (in[1] >> 6) & 3;*/ /*FLEVEL is not used here*/
-
-	if (CM != 8 || CINFO > 7) {
-		/*error: only compression method 8: inflate with sliding window of 32k is supported by the PNG spec*/
-		return 25;
-	}
-	if (FDICT != 0) {
-		/*error: the specification of PNG says about the zlib stream:
-		  "The additional flags shall not specify a preset dictionary."*/
-		return 26;
-	}
-
-	error = inflate(out, outsize, in + 2, insize - 2, settings);
-	if (error)
-		return error;
-
-	if (!settings->ignore_adler32) {
-		unsigned ADLER32  = lodepng_read32bitInt(&in[insize - 4]);
-		unsigned checksum = adler32(*out, (unsigned)(*outsize));
-		if (checksum != ADLER32)
-			return 58; /*error, adler checksum not correct, data must be corrupted*/
-	}
-
-	return 0; /*no error*/
-}
-
-static unsigned zlib_decompress(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGDecompressSettings *settings) {
-	if (settings->custom_zlib) {
-		return settings->custom_zlib(out, outsize, in, insize, settings);
-	} else {
-		return lodepng_zlib_decompress(out, outsize, in, insize, settings);
-	}
-}
-
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-#ifdef LODEPNG_COMPILE_ENCODER
-
-unsigned lodepng_zlib_compress(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGCompressSettings *settings) {
-	/*initially, *out must be NULL and outsize 0, if you just give some random *out
-	that's pointing to a non allocated buffer, this'll crash*/
-	ucvector outv;
-	size_t i;
-	unsigned error;
-	uint8_t *deflatedata = 0;
-	size_t deflatesize         = 0;
-
-	/*zlib data: 1 byte CMF (CM+CINFO), 1 byte FLG, deflate data, 4 byte ADLER32 checksum of the Decompressed data*/
-	unsigned CMF    = 120; /*0b01111000: CM 8, CINFO 7. With CINFO 7, any window size up to 32768 can be used.*/
-	unsigned FLEVEL = 0;
-	unsigned FDICT  = 0;
-	unsigned CMFFLG = 256 * CMF + FDICT * 32 + FLEVEL * 64;
-	unsigned FCHECK = 31 - CMFFLG % 31;
-	CMFFLG += FCHECK;
-
-	/*ucvector-controlled version of the output buffer, for dynamic array*/
-	ucvector_init_buffer(&outv, *out, *outsize);
-
-	ucvector_push_back(&outv, (uint8_t)(CMFFLG >> 8));
-	ucvector_push_back(&outv, (uint8_t)(CMFFLG & 255));
-
-	error = deflate(&deflatedata, &deflatesize, in, insize, settings);
-
-	if (!error) {
-		unsigned ADLER32 = adler32(in, (unsigned)insize);
-		for (i = 0; i != deflatesize; ++i)
-			ucvector_push_back(&outv, deflatedata[i]);
-		lodepng_free(deflatedata);
-		lodepng_add32bitInt(&outv, ADLER32);
-	}
-
-	*out     = outv.data;
-	*outsize = outv.size;
-
-	return error;
-}
-
-/* compress using the default or custom zlib function */
-static unsigned zlib_compress(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGCompressSettings *settings) {
-	if (settings->custom_zlib) {
-		return settings->custom_zlib(out, outsize, in, insize, settings);
-	} else {
-		return lodepng_zlib_compress(out, outsize, in, insize, settings);
-	}
-}
-
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-#else /*no LODEPNG_COMPILE_ZLIB*/
-
-#ifdef LODEPNG_COMPILE_DECODER
-static unsigned zlib_decompress(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGDecompressSettings *settings) {
-	if (!settings->custom_zlib)
-		return 87; /*no custom zlib function provided */
-	return settings->custom_zlib(out, outsize, in, insize, settings);
-}
-#endif /*LODEPNG_COMPILE_DECODER*/
-#ifdef LODEPNG_COMPILE_ENCODER
-static unsigned zlib_compress(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGCompressSettings *settings) {
-	if (!settings->custom_zlib)
-		return 87; /*no custom zlib function provided */
-	return settings->custom_zlib(out, outsize, in, insize, settings);
-}
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-#endif /*LODEPNG_COMPILE_ZLIB*/
-
-/* ////////////////////////////////////////////////////////////////////////// */
-
-#ifdef LODEPNG_COMPILE_ENCODER
-
-/*this is a good tradeoff between speed and compression ratio*/
-#define DEFAULT_WINDOWSIZE 2048
-
-void lodepng_compress_settings_init(LodePNGCompressSettings *settings) {
-	/*compress with dynamic huffman tree (not in the mathematical sense, just not the predefined one)*/
-	settings->btype        = 2;
-	settings->use_lz77     = 1;
-	settings->windowsize   = DEFAULT_WINDOWSIZE;
-	settings->minmatch     = 3;
-	settings->nicematch    = 128;
-	settings->lazymatching = 1;
-
-	settings->custom_zlib    = 0;
-	settings->custom_deflate = 0;
-	settings->custom_context = 0;
-}
-
-const LodePNGCompressSettings lodepng_default_compress_settings = {2, 1, DEFAULT_WINDOWSIZE, 3, 128, 1, 0, 0, 0};
-
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-#ifdef LODEPNG_COMPILE_DECODER
-
-void lodepng_decompress_settings_init(LodePNGDecompressSettings *settings) {
-	settings->ignore_adler32 = 0;
-
-	settings->custom_zlib    = 0;
-	settings->custom_inflate = 0;
-	settings->custom_context = 0;
-}
-
-const LodePNGDecompressSettings lodepng_default_decompress_settings = {0, 0, 0, 0};
-
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* ////////////////////////////////////////////////////////////////////////// */
-/* // End of Zlib related code. Begin of PNG related code.                 // */
-/* ////////////////////////////////////////////////////////////////////////// */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-#ifdef LODEPNG_COMPILE_PNG
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / CRC32                                                                  / */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-#ifndef LODEPNG_NO_COMPILE_CRC
-/* CRC polynomial: 0xedb88320 */
-static unsigned lodepng_crc32_table[256] = {
-	0u,          1996959894u, 3993919788u, 2567524794u, 124634137u,  1886057615u, 3915621685u, 2657392035u, 249268274u,
-	2044508324u, 3772115230u, 2547177864u, 162941995u,  2125561021u, 3887607047u, 2428444049u, 498536548u,  1789927666u,
-	4089016648u, 2227061214u, 450548861u,  1843258603u, 4107580753u, 2211677639u, 325883990u,  1684777152u, 4251122042u,
-	2321926636u, 335633487u,  1661365465u, 4195302755u, 2366115317u, 997073096u,  1281953886u, 3579855332u, 2724688242u,
-	1006888145u, 1258607687u, 3524101629u, 2768942443u, 901097722u,  1119000684u, 3686517206u, 2898065728u, 853044451u,
-	1172266101u, 3705015759u, 2882616665u, 651767980u,  1373503546u, 3369554304u, 3218104598u, 565507253u,  1454621731u,
-	3485111705u, 3099436303u, 671266974u,  1594198024u, 3322730930u, 2970347812u, 795835527u,  1483230225u, 3244367275u,
-	3060149565u, 1994146192u, 31158534u,   2563907772u, 4023717930u, 1907459465u, 112637215u,  2680153253u, 3904427059u,
-	2013776290u, 251722036u,  2517215374u, 3775830040u, 2137656763u, 141376813u,  2439277719u, 3865271297u, 1802195444u,
-	476864866u,  2238001368u, 4066508878u, 1812370925u, 453092731u,  2181625025u, 4111451223u, 1706088902u, 314042704u,
-	2344532202u, 4240017532u, 1658658271u, 366619977u,  2362670323u, 4224994405u, 1303535960u, 984961486u,  2747007092u,
-	3569037538u, 1256170817u, 1037604311u, 2765210733u, 3554079995u, 1131014506u, 879679996u,  2909243462u, 3663771856u,
-	1141124467u, 855842277u,  2852801631u, 3708648649u, 1342533948u, 654459306u,  3188396048u, 3373015174u, 1466479909u,
-	544179635u,  3110523913u, 3462522015u, 1591671054u, 702138776u,  2966460450u, 3352799412u, 1504918807u, 783551873u,
-	3082640443u, 3233442989u, 3988292384u, 2596254646u, 62317068u,   1957810842u, 3939845945u, 2647816111u, 81470997u,
-	1943803523u, 3814918930u, 2489596804u, 225274430u,  2053790376u, 3826175755u, 2466906013u, 167816743u,  2097651377u,
-	4027552580u, 2265490386u, 503444072u,  1762050814u, 4150417245u, 2154129355u, 426522225u,  1852507879u, 4275313526u,
-	2312317920u, 282753626u,  1742555852u, 4189708143u, 2394877945u, 397917763u,  1622183637u, 3604390888u, 2714866558u,
-	953729732u,  1340076626u, 3518719985u, 2797360999u, 1068828381u, 1219638859u, 3624741850u, 2936675148u, 906185462u,
-	1090812512u, 3747672003u, 2825379669u, 829329135u,  1181335161u, 3412177804u, 3160834842u, 628085408u,  1382605366u,
-	3423369109u, 3138078467u, 570562233u,  1426400815u, 3317316542u, 2998733608u, 733239954u,  1555261956u, 3268935591u,
-	3050360625u, 752459403u,  1541320221u, 2607071920u, 3965973030u, 1969922972u, 40735498u,   2617837225u, 3943577151u,
-	1913087877u, 83908371u,   2512341634u, 3803740692u, 2075208622u, 213261112u,  2463272603u, 3855990285u, 2094854071u,
-	198958881u,  2262029012u, 4057260610u, 1759359992u, 534414190u,  2176718541u, 4139329115u, 1873836001u, 414664567u,
-	2282248934u, 4279200368u, 1711684554u, 285281116u,  2405801727u, 4167216745u, 1634467795u, 376229701u,  2685067896u,
-	3608007406u, 1308918612u, 956543938u,  2808555105u, 3495958263u, 1231636301u, 1047427035u, 2932959818u, 3654703836u,
-	1088359270u, 936918000u,  2847714899u, 3736837829u, 1202900863u, 817233897u,  3183342108u, 3401237130u, 1404277552u,
-	615818150u,  3134207493u, 3453421203u, 1423857449u, 601450431u,  3009837614u, 3294710456u, 1567103746u, 711928724u,
-	3020668471u, 3272380065u, 1510334235u, 755167117u};
-
-/*Return the CRC of the bytes buf[0..len-1].*/
-unsigned lodepng_crc32(const uint8_t *data, size_t length) {
-	unsigned r = 0xffffffffu;
-	size_t i;
-	for (i = 0; i < length; ++i) {
-		r = lodepng_crc32_table[(r ^ data[i]) & 0xff] ^ (r >> 8);
-	}
-	return r ^ 0xffffffffu;
-}
-#else  /* !LODEPNG_NO_COMPILE_CRC */
-unsigned lodepng_crc32(const uint8_t *data, size_t length);
-#endif /* !LODEPNG_NO_COMPILE_CRC */
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / Reading and writing single bits and bytes from/to stream for LodePNG   / */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-static uint8_t readBitFromReversedStream(size_t *bitpointer, const uint8_t *bitstream) {
-	uint8_t result = (uint8_t)((bitstream[(*bitpointer) >> 3] >> (7 - ((*bitpointer) & 0x7))) & 1);
-	++(*bitpointer);
-	return result;
-}
-
-static unsigned readBitsFromReversedStream(size_t *bitpointer, const uint8_t *bitstream, size_t nbits) {
-	unsigned result = 0;
-	size_t i;
-	for (i = 0; i < nbits; ++i) {
-		result <<= 1;
-		result |= (unsigned)readBitFromReversedStream(bitpointer, bitstream);
-	}
-	return result;
-}
-
-#ifdef LODEPNG_COMPILE_DECODER
-static void setBitOfReversedStream0(size_t *bitpointer, uint8_t *bitstream, uint8_t bit) {
-	/*the current bit in bitstream must be 0 for this to work*/
-	if (bit) {
-		/*earlier bit of huffman code is in a lesser significant bit of an earlier byte*/
-		bitstream[(*bitpointer) >> 3] |= (bit << (7 - ((*bitpointer) & 0x7)));
-	}
-	++(*bitpointer);
-}
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-static void setBitOfReversedStream(size_t *bitpointer, uint8_t *bitstream, uint8_t bit) {
-	/*the current bit in bitstream may be 0 or 1 for this to work*/
-	if (bit == 0)
-		bitstream[(*bitpointer) >> 3] &= (uint8_t)(~(1 << (7 - ((*bitpointer) & 0x7))));
-	else
-		bitstream[(*bitpointer) >> 3] |= (1 << (7 - ((*bitpointer) & 0x7)));
-	++(*bitpointer);
-}
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / PNG chunks                                                             / */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-unsigned lodepng_chunk_length(const uint8_t *chunk) { return lodepng_read32bitInt(&chunk[0]); }
-
-void lodepng_chunk_type(char type[5], const uint8_t *chunk) {
-	unsigned i;
-	for (i = 0; i != 4; ++i)
-		type[i] = (char)chunk[4 + i];
-	type[4] = 0; /*null termination char*/
-}
-
-uint8_t lodepng_chunk_type_equals(const uint8_t *chunk, const char *type) {
-	if (strlen(type) != 4)
-		return 0;
-	return (chunk[4] == type[0] && chunk[5] == type[1] && chunk[6] == type[2] && chunk[7] == type[3]);
-}
-
-uint8_t lodepng_chunk_ancillary(const uint8_t *chunk) { return ((chunk[4] & 32) != 0); }
-
-uint8_t lodepng_chunk_private(const uint8_t *chunk) { return ((chunk[6] & 32) != 0); }
-
-uint8_t lodepng_chunk_safetocopy(const uint8_t *chunk) { return ((chunk[7] & 32) != 0); }
-
-uint8_t *lodepng_chunk_data(uint8_t *chunk) { return &chunk[8]; }
-
-const uint8_t *lodepng_chunk_data_const(const uint8_t *chunk) { return &chunk[8]; }
-
-unsigned lodepng_chunk_check_crc(const uint8_t *chunk) {
-	unsigned length = lodepng_chunk_length(chunk);
-	unsigned CRC    = lodepng_read32bitInt(&chunk[length + 8]);
-	/*the CRC is taken of the data and the 4 chunk type letters, not the length*/
-	unsigned checksum = lodepng_crc32(&chunk[4], length + 4);
-	if (CRC != checksum)
-		return 1;
-	else
-		return 0;
-}
-
-void lodepng_chunk_generate_crc(uint8_t *chunk) {
-	unsigned length = lodepng_chunk_length(chunk);
-	unsigned CRC    = lodepng_crc32(&chunk[4], length + 4);
-	lodepng_set32bitInt(chunk + 8 + length, CRC);
-}
-
-uint8_t *lodepng_chunk_next(uint8_t *chunk) {
-	unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12;
-	return &chunk[total_chunk_length];
-}
-
-const uint8_t *lodepng_chunk_next_const(const uint8_t *chunk) {
-	unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12;
-	return &chunk[total_chunk_length];
-}
-
-unsigned lodepng_chunk_append(uint8_t **out, size_t *outlength, const uint8_t *chunk) {
-	unsigned i;
-	unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12;
-	uint8_t *chunk_start, *new_buffer;
-	size_t new_length = (*outlength) + total_chunk_length;
-	if (new_length < total_chunk_length || new_length < (*outlength))
-		return 77; /*integer overflow happened*/
-
-	new_buffer = (uint8_t *)lodepng_realloc(*out, new_length);
-	if (!new_buffer)
-		return 83; /*alloc fail*/
-	(*out)       = new_buffer;
-	(*outlength) = new_length;
-	chunk_start  = &(*out)[new_length - total_chunk_length];
-
-	for (i = 0; i != total_chunk_length; ++i)
-		chunk_start[i] = chunk[i];
-
-	return 0;
-}
-
-unsigned lodepng_chunk_create(
-	uint8_t **out, size_t *outlength, unsigned length, const char *type, const uint8_t *data) {
-	unsigned i;
-	uint8_t *chunk, *new_buffer;
-	size_t new_length = (*outlength) + length + 12;
-	if (new_length < length + 12 || new_length < (*outlength))
-		return 77; /*integer overflow happened*/
-	new_buffer = (uint8_t *)lodepng_realloc(*out, new_length);
-	if (!new_buffer)
-		return 83; /*alloc fail*/
-	(*out)       = new_buffer;
-	(*outlength) = new_length;
-	chunk        = &(*out)[(*outlength) - length - 12];
-
-	/*1: length*/
-	lodepng_set32bitInt(chunk, (unsigned)length);
-
-	/*2: chunk name (4 letters)*/
-	chunk[4] = (uint8_t)type[0];
-	chunk[5] = (uint8_t)type[1];
-	chunk[6] = (uint8_t)type[2];
-	chunk[7] = (uint8_t)type[3];
-
-	/*3: the data*/
-	for (i = 0; i != length; ++i)
-		chunk[8 + i] = data[i];
-
-	/*4: CRC (of the chunkname characters and the data)*/
-	lodepng_chunk_generate_crc(chunk);
-
-	return 0;
-}
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / Color types and such                                                   / */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-/*return type is a LodePNG error code*/
-static unsigned checkColorValidity(LodePNGColorType colortype, unsigned bd) /*bd = bitdepth*/
-{
-	switch (colortype) {
-	case 0:
-		if (!(bd == 1 || bd == 2 || bd == 4 || bd == 8 || bd == 16))
-			return 37;
-		break; /*grey*/
-	case 2:
-		if (!(bd == 8 || bd == 16))
-			return 37;
-		break; /*RGB*/
-	case 3:
-		if (!(bd == 1 || bd == 2 || bd == 4 || bd == 8))
-			return 37;
-		break; /*palette*/
-	case 4:
-		if (!(bd == 8 || bd == 16))
-			return 37;
-		break; /*grey + alpha*/
-	case 6:
-		if (!(bd == 8 || bd == 16))
-			return 37;
-		break; /*RGBA*/
-	default:
-		return 31;
-	}
-	return 0; /*allowed color type / bits combination*/
-}
-
-static unsigned getNumColorChannels(LodePNGColorType colortype) {
-	switch (colortype) {
-	case 0:
-		return 1; /*grey*/
-	case 2:
-		return 3; /*RGB*/
-	case 3:
-		return 1; /*palette*/
-	case 4:
-		return 2; /*grey + alpha*/
-	case 6:
-		return 4; /*RGBA*/
-	}
-	return 0; /*unexisting color type*/
-}
-
-static unsigned lodepng_get_bpp_lct(LodePNGColorType colortype, unsigned bitdepth) {
-	/*bits per pixel is amount of channels * bits per channel*/
-	return getNumColorChannels(colortype) * bitdepth;
-}
-
-/* ////////////////////////////////////////////////////////////////////////// */
-
-void lodepng_color_mode_init(LodePNGColorMode *info) {
-	info->key_defined = 0;
-	info->key_r = info->key_g = info->key_b = 0;
-	info->colortype                         = LCT_RGBA;
-	info->bitdepth                          = 8;
-	info->palette                           = 0;
-	info->palettesize                       = 0;
-}
-
-void lodepng_color_mode_cleanup(LodePNGColorMode *info) { lodepng_palette_clear(info); }
-
-unsigned lodepng_color_mode_copy(LodePNGColorMode *dest, const LodePNGColorMode *source) {
-	size_t i;
-	lodepng_color_mode_cleanup(dest);
-	*dest = *source;
-	if (source->palette) {
-		dest->palette = (uint8_t *)lodepng_malloc(1024);
-		if (!dest->palette && source->palettesize)
-			return 83; /*alloc fail*/
-		for (i = 0; i != source->palettesize * 4; ++i)
-			dest->palette[i] = source->palette[i];
-	}
-	return 0;
-}
-
-static int lodepng_color_mode_equal(const LodePNGColorMode *a, const LodePNGColorMode *b) {
-	size_t i;
-	if (a->colortype != b->colortype)
-		return 0;
-	if (a->bitdepth != b->bitdepth)
-		return 0;
-	if (a->key_defined != b->key_defined)
-		return 0;
-	if (a->key_defined) {
-		if (a->key_r != b->key_r)
-			return 0;
-		if (a->key_g != b->key_g)
-			return 0;
-		if (a->key_b != b->key_b)
-			return 0;
-	}
-	/*if one of the palette sizes is 0, then we consider it to be the same as the
-	other: it means that e.g. the palette was not given by the user and should be
-	considered the same as the palette inside the PNG.*/
-	if (1 /*a->palettesize != 0 && b->palettesize != 0*/) {
-		if (a->palettesize != b->palettesize)
-			return 0;
-		for (i = 0; i != a->palettesize * 4; ++i) {
-			if (a->palette[i] != b->palette[i])
-				return 0;
-		}
-	}
-	return 1;
-}
-
-void lodepng_palette_clear(LodePNGColorMode *info) {
-	if (info->palette)
-		lodepng_free(info->palette);
-	info->palette     = 0;
-	info->palettesize = 0;
-}
-
-unsigned
-lodepng_palette_add(LodePNGColorMode *info, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
-	uint8_t *data;
-	/*the same resize technique as C++ std::vectors is used, and here it's made so that for a palette with
-	the max of 256 colors, it'll have the exact alloc size*/
-	if (!info->palette) /*allocate palette if empty*/
-	{
-		/*room for 256 colors with 4 bytes each*/
-		data = (uint8_t *)lodepng_realloc(info->palette, 1024);
-		if (!data)
-			return 83; /*alloc fail*/
-		else
-			info->palette = data;
-	}
-	info->palette[4 * info->palettesize + 0] = r;
-	info->palette[4 * info->palettesize + 1] = g;
-	info->palette[4 * info->palettesize + 2] = b;
-	info->palette[4 * info->palettesize + 3] = a;
-	++info->palettesize;
-	return 0;
-}
-
-unsigned lodepng_get_bpp(const LodePNGColorMode *info) {
-	/*calculate bits per pixel out of colortype and bitdepth*/
-	return lodepng_get_bpp_lct(info->colortype, info->bitdepth);
-}
-
-unsigned lodepng_get_channels(const LodePNGColorMode *info) { return getNumColorChannels(info->colortype); }
-
-unsigned lodepng_is_greyscale_type(const LodePNGColorMode *info) {
-	return info->colortype == LCT_GREY || info->colortype == LCT_GREY_ALPHA;
-}
-
-unsigned lodepng_is_alpha_type(const LodePNGColorMode *info) { return (info->colortype & 4) != 0; /*4 or 6*/ }
-
-unsigned lodepng_is_palette_type(const LodePNGColorMode *info) { return info->colortype == LCT_PALETTE; }
-
-unsigned lodepng_has_palette_alpha(const LodePNGColorMode *info) {
-	size_t i;
-	for (i = 0; i != info->palettesize; ++i) {
-		if (info->palette[i * 4 + 3] < 255)
-			return 1;
-	}
-	return 0;
-}
-
-unsigned lodepng_can_have_alpha(const LodePNGColorMode *info) {
-	return info->key_defined || lodepng_is_alpha_type(info) || lodepng_has_palette_alpha(info);
-}
-
-size_t lodepng_get_raw_size(unsigned w, unsigned h, const LodePNGColorMode *color) {
-	/*will not overflow for any color type if roughly w * h < 268435455*/
-	size_t bpp = lodepng_get_bpp(color);
-	size_t n   = w * h;
-	return ((n / 8) * bpp) + ((n & 7) * bpp + 7) / 8;
-}
-
-size_t lodepng_get_raw_size_lct(unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth) {
-	/*will not overflow for any color type if roughly w * h < 268435455*/
-	size_t bpp = lodepng_get_bpp_lct(colortype, bitdepth);
-	size_t n   = w * h;
-	return ((n / 8) * bpp) + ((n & 7) * bpp + 7) / 8;
-}
-
-#ifdef LODEPNG_COMPILE_PNG
-#ifdef LODEPNG_COMPILE_DECODER
-/*in an idat chunk, each scanline is a multiple of 8 bits, unlike the lodepng output buffer*/
-static size_t lodepng_get_raw_size_idat(unsigned w, unsigned h, const LodePNGColorMode *color) {
-	/*will not overflow for any color type if roughly w * h < 268435455*/
-	size_t bpp  = lodepng_get_bpp(color);
-	size_t line = ((w / 8) * bpp) + ((w & 7) * bpp + 7) / 8;
-	return h * line;
-}
-#endif /*LODEPNG_COMPILE_DECODER*/
-#endif /*LODEPNG_COMPILE_PNG*/
-
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-
-static void LodePNGUnknownChunks_init(LodePNGInfo *info) {
-	unsigned i;
-	for (i = 0; i != 3; ++i)
-		info->unknown_chunks_data[i] = 0;
-	for (i = 0; i != 3; ++i)
-		info->unknown_chunks_size[i] = 0;
-}
-
-static void LodePNGUnknownChunks_cleanup(LodePNGInfo *info) {
-	unsigned i;
-	for (i = 0; i != 3; ++i)
-		lodepng_free(info->unknown_chunks_data[i]);
-}
-
-static unsigned LodePNGUnknownChunks_copy(LodePNGInfo *dest, const LodePNGInfo *src) {
-	unsigned i;
-
-	LodePNGUnknownChunks_cleanup(dest);
-
-	for (i = 0; i != 3; ++i) {
-		size_t j;
-		dest->unknown_chunks_size[i] = src->unknown_chunks_size[i];
-		dest->unknown_chunks_data[i] = (uint8_t *)lodepng_malloc(src->unknown_chunks_size[i]);
-		if (!dest->unknown_chunks_data[i] && dest->unknown_chunks_size[i])
-			return 83; /*alloc fail*/
-		for (j = 0; j < src->unknown_chunks_size[i]; ++j) {
-			dest->unknown_chunks_data[i][j] = src->unknown_chunks_data[i][j];
-		}
-	}
-
-	return 0;
-}
-
-/******************************************************************************/
-
-static void LodePNGText_init(LodePNGInfo *info) {
-	info->text_num     = 0;
-	info->text_keys    = NULL;
-	info->text_strings = NULL;
-}
-
-static void LodePNGText_cleanup(LodePNGInfo *info) {
-	size_t i;
-	for (i = 0; i != info->text_num; ++i) {
-		string_cleanup(&info->text_keys[i]);
-		string_cleanup(&info->text_strings[i]);
-	}
-	lodepng_free(info->text_keys);
-	lodepng_free(info->text_strings);
-}
-
-static unsigned LodePNGText_copy(LodePNGInfo *dest, const LodePNGInfo *source) {
-	size_t i           = 0;
-	dest->text_keys    = 0;
-	dest->text_strings = 0;
-	dest->text_num     = 0;
-	for (i = 0; i != source->text_num; ++i) {
-		CERROR_TRY_RETURN(lodepng_add_text(dest, source->text_keys[i], source->text_strings[i]));
-	}
-	return 0;
-}
-
-void lodepng_clear_text(LodePNGInfo *info) { LodePNGText_cleanup(info); }
-
-unsigned lodepng_add_text(LodePNGInfo *info, const char *key, const char *str) {
-	char **new_keys    = (char **)(lodepng_realloc(info->text_keys, sizeof(char *) * (info->text_num + 1)));
-	char **new_strings = (char **)(lodepng_realloc(info->text_strings, sizeof(char *) * (info->text_num + 1)));
-	if (!new_keys || !new_strings) {
-		lodepng_free(new_keys);
-		lodepng_free(new_strings);
-		return 83; /*alloc fail*/
-	}
-
-	++info->text_num;
-	info->text_keys    = new_keys;
-	info->text_strings = new_strings;
-
-	string_init(&info->text_keys[info->text_num - 1]);
-	string_set(&info->text_keys[info->text_num - 1], key);
-
-	string_init(&info->text_strings[info->text_num - 1]);
-	string_set(&info->text_strings[info->text_num - 1], str);
-
-	return 0;
-}
-
-/******************************************************************************/
-
-static void LodePNGIText_init(LodePNGInfo *info) {
-	info->itext_num       = 0;
-	info->itext_keys      = NULL;
-	info->itext_langtags  = NULL;
-	info->itext_transkeys = NULL;
-	info->itext_strings   = NULL;
-}
-
-static void LodePNGIText_cleanup(LodePNGInfo *info) {
-	size_t i;
-	for (i = 0; i != info->itext_num; ++i) {
-		string_cleanup(&info->itext_keys[i]);
-		string_cleanup(&info->itext_langtags[i]);
-		string_cleanup(&info->itext_transkeys[i]);
-		string_cleanup(&info->itext_strings[i]);
-	}
-	lodepng_free(info->itext_keys);
-	lodepng_free(info->itext_langtags);
-	lodepng_free(info->itext_transkeys);
-	lodepng_free(info->itext_strings);
-}
-
-static unsigned LodePNGIText_copy(LodePNGInfo *dest, const LodePNGInfo *source) {
-	size_t i              = 0;
-	dest->itext_keys      = 0;
-	dest->itext_langtags  = 0;
-	dest->itext_transkeys = 0;
-	dest->itext_strings   = 0;
-	dest->itext_num       = 0;
-	for (i = 0; i != source->itext_num; ++i) {
-		CERROR_TRY_RETURN(lodepng_add_itext(
-			dest,
-			source->itext_keys[i],
-			source->itext_langtags[i],
-			source->itext_transkeys[i],
-			source->itext_strings[i]));
-	}
-	return 0;
-}
-
-void lodepng_clear_itext(LodePNGInfo *info) { LodePNGIText_cleanup(info); }
-
-unsigned
-lodepng_add_itext(LodePNGInfo *info, const char *key, const char *langtag, const char *transkey, const char *str) {
-	char **new_keys      = (char **)(lodepng_realloc(info->itext_keys, sizeof(char *) * (info->itext_num + 1)));
-	char **new_langtags  = (char **)(lodepng_realloc(info->itext_langtags, sizeof(char *) * (info->itext_num + 1)));
-	char **new_transkeys = (char **)(lodepng_realloc(info->itext_transkeys, sizeof(char *) * (info->itext_num + 1)));
-	char **new_strings   = (char **)(lodepng_realloc(info->itext_strings, sizeof(char *) * (info->itext_num + 1)));
-	if (!new_keys || !new_langtags || !new_transkeys || !new_strings) {
-		lodepng_free(new_keys);
-		lodepng_free(new_langtags);
-		lodepng_free(new_transkeys);
-		lodepng_free(new_strings);
-		return 83; /*alloc fail*/
-	}
-
-	++info->itext_num;
-	info->itext_keys      = new_keys;
-	info->itext_langtags  = new_langtags;
-	info->itext_transkeys = new_transkeys;
-	info->itext_strings   = new_strings;
-
-	string_init(&info->itext_keys[info->itext_num - 1]);
-	string_set(&info->itext_keys[info->itext_num - 1], key);
-
-	string_init(&info->itext_langtags[info->itext_num - 1]);
-	string_set(&info->itext_langtags[info->itext_num - 1], langtag);
-
-	string_init(&info->itext_transkeys[info->itext_num - 1]);
-	string_set(&info->itext_transkeys[info->itext_num - 1], transkey);
-
-	string_init(&info->itext_strings[info->itext_num - 1]);
-	string_set(&info->itext_strings[info->itext_num - 1], str);
-
-	return 0;
-}
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-
-void lodepng_info_init(LodePNGInfo *info) {
-	lodepng_color_mode_init(&info->color);
-	info->interlace_method   = 0;
-	info->compression_method = 0;
-	info->filter_method      = 0;
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-	info->background_defined = 0;
-	info->background_r = info->background_g = info->background_b = 0;
-
-	LodePNGText_init(info);
-	LodePNGIText_init(info);
-
-	info->time_defined = 0;
-	info->phys_defined = 0;
-
-	LodePNGUnknownChunks_init(info);
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-}
-
-void lodepng_info_cleanup(LodePNGInfo *info) {
-	lodepng_color_mode_cleanup(&info->color);
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-	LodePNGText_cleanup(info);
-	LodePNGIText_cleanup(info);
-
-	LodePNGUnknownChunks_cleanup(info);
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-}
-
-unsigned lodepng_info_copy(LodePNGInfo *dest, const LodePNGInfo *source) {
-	lodepng_info_cleanup(dest);
-	*dest = *source;
-	lodepng_color_mode_init(&dest->color);
-	CERROR_TRY_RETURN(lodepng_color_mode_copy(&dest->color, &source->color));
-
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-	CERROR_TRY_RETURN(LodePNGText_copy(dest, source));
-	CERROR_TRY_RETURN(LodePNGIText_copy(dest, source));
-
-	LodePNGUnknownChunks_init(dest);
-	CERROR_TRY_RETURN(LodePNGUnknownChunks_copy(dest, source));
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-	return 0;
-}
-
-void lodepng_info_swap(LodePNGInfo *a, LodePNGInfo *b) {
-	LodePNGInfo temp = *a;
-	*a               = *b;
-	*b               = temp;
-}
-
-/* ////////////////////////////////////////////////////////////////////////// */
-
-/*index: bitgroup index, bits: bitgroup size(1, 2 or 4), in: bitgroup value, out: octet array to add bits to*/
-static void addColorBits(uint8_t *out, size_t index, unsigned bits, unsigned in) {
-	unsigned m = bits == 1 ? 7 : bits == 2 ? 3 : 1; /*8 / bits - 1*/
-	/*p = the partial index in the byte, e.g. with 4 palettebits it is 0 for first half or 1 for second half*/
-	unsigned p = index & m;
-	in &= (1u << bits) - 1u; /*filter out any other bits of the input value*/
-	in = in << (bits * (m - p));
-	if (p == 0)
-		out[index * bits / 8] = in;
-	else
-		out[index * bits / 8] |= in;
-}
-
-typedef struct ColorTree ColorTree;
-
-/*
-One node of a color tree
-This is the data structure used to count the number of unique colors and to get a palette
-index for a color. It's like an octree, but because the alpha channel is used too, each
-node has 16 instead of 8 children.
-*/
-struct ColorTree {
-	ColorTree *children[16]; /*up to 16 pointers to ColorTree of next level*/
-	int index;               /*the payload. Only has a meaningful value if this is in the last level*/
-};
-
-static void color_tree_init(ColorTree *tree) {
-	int i;
-	for (i = 0; i != 16; ++i)
-		tree->children[i] = 0;
-	tree->index = -1;
-}
-
-static void color_tree_cleanup(ColorTree *tree) {
-	int i;
-	for (i = 0; i != 16; ++i) {
-		if (tree->children[i]) {
-			color_tree_cleanup(tree->children[i]);
-			lodepng_free(tree->children[i]);
-		}
-	}
-}
-
-/*returns -1 if color not present, its index otherwise*/
-static int color_tree_get(ColorTree *tree, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
-	int bit = 0;
-	for (bit = 0; bit < 8; ++bit) {
-		int i = 8 * ((r >> bit) & 1) + 4 * ((g >> bit) & 1) + 2 * ((b >> bit) & 1) + 1 * ((a >> bit) & 1);
-		if (!tree->children[i])
-			return -1;
-		else
-			tree = tree->children[i];
-	}
-	return tree ? tree->index : -1;
-}
-
-#ifdef LODEPNG_COMPILE_ENCODER
-static int color_tree_has(ColorTree *tree, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
-	return color_tree_get(tree, r, g, b, a) >= 0;
-}
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-/*color is not allowed to already exist.
-Index should be >= 0 (it's signed to be compatible with using -1 for "doesn't exist")*/
-static void
-color_tree_add(ColorTree *tree, uint8_t r, uint8_t g, uint8_t b, uint8_t a, unsigned index) {
-	int bit;
-	for (bit = 0; bit < 8; ++bit) {
-		int i = 8 * ((r >> bit) & 1) + 4 * ((g >> bit) & 1) + 2 * ((b >> bit) & 1) + 1 * ((a >> bit) & 1);
-		if (!tree->children[i]) {
-			tree->children[i] = (ColorTree *)lodepng_malloc(sizeof(ColorTree));
-			color_tree_init(tree->children[i]);
-		}
-		tree = tree->children[i];
-	}
-	tree->index = (int)index;
-}
-
-/*put a pixel, given its RGBA color, into image of any color type*/
-static unsigned rgba8ToPixel(
-	uint8_t *out, size_t i, const LodePNGColorMode *mode, ColorTree *tree /*for palette*/, uint8_t r,
-	uint8_t g, uint8_t b, uint8_t a) {
-	if (mode->colortype == LCT_GREY) {
-		uint8_t grey = r; /*((unsigned short)r + g + b) / 3*/
-		;
-		if (mode->bitdepth == 8)
-			out[i] = grey;
-		else if (mode->bitdepth == 16)
-			out[i * 2 + 0] = out[i * 2 + 1] = grey;
-		else {
-			/*take the most significant bits of grey*/
-			grey = (grey >> (8 - mode->bitdepth)) & ((1 << mode->bitdepth) - 1);
-			addColorBits(out, i, mode->bitdepth, grey);
-		}
-	} else if (mode->colortype == LCT_RGB) {
-		if (mode->bitdepth == 8) {
-			out[i * 3 + 0] = r;
-			out[i * 3 + 1] = g;
-			out[i * 3 + 2] = b;
-		} else {
-			out[i * 6 + 0] = out[i * 6 + 1] = r;
-			out[i * 6 + 2] = out[i * 6 + 3] = g;
-			out[i * 6 + 4] = out[i * 6 + 5] = b;
-		}
-	} else if (mode->colortype == LCT_PALETTE) {
-		int index = color_tree_get(tree, r, g, b, a);
-		if (index < 0)
-			return 82; /*color not in palette*/
-		if (mode->bitdepth == 8)
-			out[i] = index;
-		else
-			addColorBits(out, i, mode->bitdepth, (unsigned)index);
-	} else if (mode->colortype == LCT_GREY_ALPHA) {
-		uint8_t grey = r; /*((unsigned short)r + g + b) / 3*/
-		;
-		if (mode->bitdepth == 8) {
-			out[i * 2 + 0] = grey;
-			out[i * 2 + 1] = a;
-		} else if (mode->bitdepth == 16) {
-			out[i * 4 + 0] = out[i * 4 + 1] = grey;
-			out[i * 4 + 2] = out[i * 4 + 3] = a;
-		}
-	} else if (mode->colortype == LCT_RGBA) {
-		if (mode->bitdepth == 8) {
-			out[i * 4 + 0] = r;
-			out[i * 4 + 1] = g;
-			out[i * 4 + 2] = b;
-			out[i * 4 + 3] = a;
-		} else {
-			out[i * 8 + 0] = out[i * 8 + 1] = r;
-			out[i * 8 + 2] = out[i * 8 + 3] = g;
-			out[i * 8 + 4] = out[i * 8 + 5] = b;
-			out[i * 8 + 6] = out[i * 8 + 7] = a;
-		}
-	}
-
-	return 0; /*no error*/
-}
-
-/*put a pixel, given its RGBA16 color, into image of any color 16-bitdepth type*/
-static void rgba16ToPixel(
-	uint8_t *out, size_t i, const LodePNGColorMode *mode, unsigned short r, unsigned short g, unsigned short b,
-	unsigned short a) {
-	if (mode->colortype == LCT_GREY) {
-		unsigned short grey = r; /*((unsigned)r + g + b) / 3*/
-		;
-		out[i * 2 + 0] = (grey >> 8) & 255;
-		out[i * 2 + 1] = grey & 255;
-	} else if (mode->colortype == LCT_RGB) {
-		out[i * 6 + 0] = (r >> 8) & 255;
-		out[i * 6 + 1] = r & 255;
-		out[i * 6 + 2] = (g >> 8) & 255;
-		out[i * 6 + 3] = g & 255;
-		out[i * 6 + 4] = (b >> 8) & 255;
-		out[i * 6 + 5] = b & 255;
-	} else if (mode->colortype == LCT_GREY_ALPHA) {
-		unsigned short grey = r; /*((unsigned)r + g + b) / 3*/
-		;
-		out[i * 4 + 0] = (grey >> 8) & 255;
-		out[i * 4 + 1] = grey & 255;
-		out[i * 4 + 2] = (a >> 8) & 255;
-		out[i * 4 + 3] = a & 255;
-	} else if (mode->colortype == LCT_RGBA) {
-		out[i * 8 + 0] = (r >> 8) & 255;
-		out[i * 8 + 1] = r & 255;
-		out[i * 8 + 2] = (g >> 8) & 255;
-		out[i * 8 + 3] = g & 255;
-		out[i * 8 + 4] = (b >> 8) & 255;
-		out[i * 8 + 5] = b & 255;
-		out[i * 8 + 6] = (a >> 8) & 255;
-		out[i * 8 + 7] = a & 255;
-	}
-}
-
-/*Get RGBA8 color of pixel with index i (y * width + x) from the raw image with given color type.*/
-static void getPixelColorRGBA8(
-	uint8_t *r, uint8_t *g, uint8_t *b, uint8_t *a, const uint8_t *in, size_t i,
-	const LodePNGColorMode *mode) {
-	if (mode->colortype == LCT_GREY) {
-		if (mode->bitdepth == 8) {
-			*r = *g = *b = in[i];
-			if (mode->key_defined && *r == mode->key_r)
-				*a = 0;
-			else
-				*a = 255;
-		} else if (mode->bitdepth == 16) {
-			*r = *g = *b = in[i * 2 + 0];
-			if (mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r)
-				*a = 0;
-			else
-				*a = 255;
-		} else {
-			unsigned highest = ((1U << mode->bitdepth) - 1U); /*highest possible value for this bit depth*/
-			size_t j         = i * mode->bitdepth;
-			unsigned value   = readBitsFromReversedStream(&j, in, mode->bitdepth);
-			*r = *g = *b = (value * 255) / highest;
-			if (mode->key_defined && value == mode->key_r)
-				*a = 0;
-			else
-				*a = 255;
-		}
-	} else if (mode->colortype == LCT_RGB) {
-		if (mode->bitdepth == 8) {
-			*r = in[i * 3 + 0];
-			*g = in[i * 3 + 1];
-			*b = in[i * 3 + 2];
-			if (mode->key_defined && *r == mode->key_r && *g == mode->key_g && *b == mode->key_b)
-				*a = 0;
-			else
-				*a = 255;
-		} else {
-			*r = in[i * 6 + 0];
-			*g = in[i * 6 + 2];
-			*b = in[i * 6 + 4];
-			if (mode->key_defined && 256U * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r &&
-			    256U * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g &&
-			    256U * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b)
-				*a = 0;
-			else
-				*a = 255;
-		}
-	} else if (mode->colortype == LCT_PALETTE) {
-		unsigned index;
-		if (mode->bitdepth == 8)
-			index = in[i];
-		else {
-			size_t j = i * mode->bitdepth;
-			index    = readBitsFromReversedStream(&j, in, mode->bitdepth);
-		}
-
-		if (index >= mode->palettesize) {
-			/*This is an error according to the PNG spec, but common PNG decoders make it black instead.
-			Done here too, slightly faster due to no error handling needed.*/
-			*r = *g = *b = 0;
-			*a           = 255;
-		} else {
-			*r = mode->palette[index * 4 + 0];
-			*g = mode->palette[index * 4 + 1];
-			*b = mode->palette[index * 4 + 2];
-			*a = mode->palette[index * 4 + 3];
-		}
-	} else if (mode->colortype == LCT_GREY_ALPHA) {
-		if (mode->bitdepth == 8) {
-			*r = *g = *b = in[i * 2 + 0];
-			*a           = in[i * 2 + 1];
-		} else {
-			*r = *g = *b = in[i * 4 + 0];
-			*a           = in[i * 4 + 2];
-		}
-	} else if (mode->colortype == LCT_RGBA) {
-		if (mode->bitdepth == 8) {
-			*r = in[i * 4 + 0];
-			*g = in[i * 4 + 1];
-			*b = in[i * 4 + 2];
-			*a = in[i * 4 + 3];
-		} else {
-			*r = in[i * 8 + 0];
-			*g = in[i * 8 + 2];
-			*b = in[i * 8 + 4];
-			*a = in[i * 8 + 6];
-		}
-	}
-}
-
-/*Similar to getPixelColorRGBA8, but with all the for loops inside of the color
-mode test cases, optimized to convert the colors much faster, when converting
-to RGBA or RGB with 8 bit per cannel. buffer must be RGBA or RGB output with
-enough memory, if has_alpha is true the output is RGBA. mode has the color mode
-of the input buffer.*/
-static void getPixelColorsRGBA8(
-	uint8_t *buffer, size_t numpixels, unsigned has_alpha, const uint8_t *in,
-	const LodePNGColorMode *mode) {
-	unsigned num_channels = has_alpha ? 4 : 3;
-	size_t i;
-	if (mode->colortype == LCT_GREY) {
-		if (mode->bitdepth == 8) {
-			for (i = 0; i != numpixels; ++i, buffer += num_channels) {
-				buffer[0] = buffer[1] = buffer[2] = in[i];
-				if (has_alpha)
-					buffer[3] = mode->key_defined && in[i] == mode->key_r ? 0 : 255;
-			}
-		} else if (mode->bitdepth == 16) {
-			for (i = 0; i != numpixels; ++i, buffer += num_channels) {
-				buffer[0] = buffer[1] = buffer[2] = in[i * 2];
-				if (has_alpha)
-					buffer[3] = mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r ? 0 : 255;
-			}
-		} else {
-			unsigned highest = ((1U << mode->bitdepth) - 1U); /*highest possible value for this bit depth*/
-			size_t j         = 0;
-			for (i = 0; i != numpixels; ++i, buffer += num_channels) {
-				unsigned value = readBitsFromReversedStream(&j, in, mode->bitdepth);
-				buffer[0] = buffer[1] = buffer[2] = (value * 255) / highest;
-				if (has_alpha)
-					buffer[3] = mode->key_defined && value == mode->key_r ? 0 : 255;
-			}
-		}
-	} else if (mode->colortype == LCT_RGB) {
-		if (mode->bitdepth == 8) {
-			for (i = 0; i != numpixels; ++i, buffer += num_channels) {
-				buffer[0] = in[i * 3 + 0];
-				buffer[1] = in[i * 3 + 1];
-				buffer[2] = in[i * 3 + 2];
-				if (has_alpha)
-					buffer[3] = mode->key_defined && buffer[0] == mode->key_r && buffer[1] == mode->key_g &&
-					                    buffer[2] == mode->key_b
-					                ? 0
-					                : 255;
-			}
-		} else {
-			for (i = 0; i != numpixels; ++i, buffer += num_channels) {
-				buffer[0] = in[i * 6 + 0];
-				buffer[1] = in[i * 6 + 2];
-				buffer[2] = in[i * 6 + 4];
-				if (has_alpha)
-					buffer[3] = mode->key_defined && 256U * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r &&
-					                    256U * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g &&
-					                    256U * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b
-					                ? 0
-					                : 255;
-			}
-		}
-	} else if (mode->colortype == LCT_PALETTE) {
-		unsigned index;
-		size_t j = 0;
-		for (i = 0; i != numpixels; ++i, buffer += num_channels) {
-			if (mode->bitdepth == 8)
-				index = in[i];
-			else
-				index = readBitsFromReversedStream(&j, in, mode->bitdepth);
-
-			if (index >= mode->palettesize) {
-				/*This is an error according to the PNG spec, but most PNG decoders make it black instead.
-				Done here too, slightly faster due to no error handling needed.*/
-				buffer[0] = buffer[1] = buffer[2] = 0;
-				if (has_alpha)
-					buffer[3] = 255;
-			} else {
-				buffer[0] = mode->palette[index * 4 + 0];
-				buffer[1] = mode->palette[index * 4 + 1];
-				buffer[2] = mode->palette[index * 4 + 2];
-				if (has_alpha)
-					buffer[3] = mode->palette[index * 4 + 3];
-			}
-		}
-	} else if (mode->colortype == LCT_GREY_ALPHA) {
-		if (mode->bitdepth == 8) {
-			for (i = 0; i != numpixels; ++i, buffer += num_channels) {
-				buffer[0] = buffer[1] = buffer[2] = in[i * 2 + 0];
-				if (has_alpha)
-					buffer[3] = in[i * 2 + 1];
-			}
-		} else {
-			for (i = 0; i != numpixels; ++i, buffer += num_channels) {
-				buffer[0] = buffer[1] = buffer[2] = in[i * 4 + 0];
-				if (has_alpha)
-					buffer[3] = in[i * 4 + 2];
-			}
-		}
-	} else if (mode->colortype == LCT_RGBA) {
-		if (mode->bitdepth == 8) {
-			for (i = 0; i != numpixels; ++i, buffer += num_channels) {
-				buffer[0] = in[i * 4 + 0];
-				buffer[1] = in[i * 4 + 1];
-				buffer[2] = in[i * 4 + 2];
-				if (has_alpha)
-					buffer[3] = in[i * 4 + 3];
-			}
-		} else {
-			for (i = 0; i != numpixels; ++i, buffer += num_channels) {
-				buffer[0] = in[i * 8 + 0];
-				buffer[1] = in[i * 8 + 2];
-				buffer[2] = in[i * 8 + 4];
-				if (has_alpha)
-					buffer[3] = in[i * 8 + 6];
-			}
-		}
-	}
-}
-
-/*Get RGBA16 color of pixel with index i (y * width + x) from the raw image with
-given color type, but the given color type must be 16-bit itself.*/
-static void getPixelColorRGBA16(
-	unsigned short *r, unsigned short *g, unsigned short *b, unsigned short *a, const uint8_t *in, size_t i,
-	const LodePNGColorMode *mode) {
-	if (mode->colortype == LCT_GREY) {
-		*r = *g = *b = 256 * in[i * 2 + 0] + in[i * 2 + 1];
-		if (mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r)
-			*a = 0;
-		else
-			*a = 65535;
-	} else if (mode->colortype == LCT_RGB) {
-		*r = 256u * in[i * 6 + 0] + in[i * 6 + 1];
-		*g = 256u * in[i * 6 + 2] + in[i * 6 + 3];
-		*b = 256u * in[i * 6 + 4] + in[i * 6 + 5];
-		if (mode->key_defined && 256u * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r &&
-		    256u * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g && 256u * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b)
-			*a = 0;
-		else
-			*a = 65535;
-	} else if (mode->colortype == LCT_GREY_ALPHA) {
-		*r = *g = *b = 256u * in[i * 4 + 0] + in[i * 4 + 1];
-		*a           = 256u * in[i * 4 + 2] + in[i * 4 + 3];
-	} else if (mode->colortype == LCT_RGBA) {
-		*r = 256u * in[i * 8 + 0] + in[i * 8 + 1];
-		*g = 256u * in[i * 8 + 2] + in[i * 8 + 3];
-		*b = 256u * in[i * 8 + 4] + in[i * 8 + 5];
-		*a = 256u * in[i * 8 + 6] + in[i * 8 + 7];
-	}
-}
-
-unsigned lodepng_convert(
-	uint8_t *out, const uint8_t *in, const LodePNGColorMode *mode_out, const LodePNGColorMode *mode_in,
-	unsigned w, unsigned h) {
-	size_t i;
-	ColorTree tree;
-	size_t numpixels = w * h;
-
-	if (lodepng_color_mode_equal(mode_out, mode_in)) {
-		size_t numbytes = lodepng_get_raw_size(w, h, mode_in);
-		for (i = 0; i != numbytes; ++i)
-			out[i] = in[i];
-		return 0;
-	}
-
-	if (mode_out->colortype == LCT_PALETTE) {
-		size_t palettesize           = mode_out->palettesize;
-		const uint8_t *palette = mode_out->palette;
-		size_t palsize               = 1u << mode_out->bitdepth;
-		/*if the user specified output palette but did not give the values, assume
-		they want the values of the input color type (assuming that one is palette).
-		Note that we never create a new palette ourselves.*/
-		if (palettesize == 0) {
-			palettesize = mode_in->palettesize;
-			palette     = mode_in->palette;
-		}
-		if (palettesize < palsize)
-			palsize = palettesize;
-		color_tree_init(&tree);
-		for (i = 0; i != palsize; ++i) {
-			const uint8_t *p = &palette[i * 4];
-			color_tree_add(&tree, p[0], p[1], p[2], p[3], i);
-		}
-	}
-
-	if (mode_in->bitdepth == 16 && mode_out->bitdepth == 16) {
-		for (i = 0; i != numpixels; ++i) {
-			unsigned short r = 0, g = 0, b = 0, a = 0;
-			getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode_in);
-			rgba16ToPixel(out, i, mode_out, r, g, b, a);
-		}
-	} else if (mode_out->bitdepth == 8 && mode_out->colortype == LCT_RGBA) {
-		getPixelColorsRGBA8(out, numpixels, 1, in, mode_in);
-	} else if (mode_out->bitdepth == 8 && mode_out->colortype == LCT_RGB) {
-		getPixelColorsRGBA8(out, numpixels, 0, in, mode_in);
-	} else {
-		uint8_t r = 0, g = 0, b = 0, a = 0;
-		for (i = 0; i != numpixels; ++i) {
-			getPixelColorRGBA8(&r, &g, &b, &a, in, i, mode_in);
-			CERROR_TRY_RETURN(rgba8ToPixel(out, i, mode_out, &tree, r, g, b, a));
-		}
-	}
-
-	if (mode_out->colortype == LCT_PALETTE) {
-		color_tree_cleanup(&tree);
-	}
-
-	return 0; /*no error*/
-}
-
-#ifdef LODEPNG_COMPILE_ENCODER
-
-void lodepng_color_profile_init(LodePNGColorProfile *profile) {
-	profile->colored = 0;
-	profile->key     = 0;
-	profile->alpha   = 0;
-	profile->key_r = profile->key_g = profile->key_b = 0;
-	profile->numcolors                               = 0;
-	profile->bits                                    = 1;
-}
-
-/*function used for debug purposes with C++*/
-/*void printColorProfile(LodePNGColorProfile* p)
-{
-  std::cout << "colored: " << (int)p->colored << ", ";
-  std::cout << "key: " << (int)p->key << ", ";
-  std::cout << "key_r: " << (int)p->key_r << ", ";
-  std::cout << "key_g: " << (int)p->key_g << ", ";
-  std::cout << "key_b: " << (int)p->key_b << ", ";
-  std::cout << "alpha: " << (int)p->alpha << ", ";
-  std::cout << "numcolors: " << (int)p->numcolors << ", ";
-  std::cout << "bits: " << (int)p->bits << std::endl;
-}*/
-
-/*Returns how many bits needed to represent given value (max 8 bit)*/
-static unsigned getValueRequiredBits(uint8_t value) {
-	if (value == 0 || value == 255)
-		return 1;
-	/*The scaling of 2-bit and 4-bit values uses multiples of 85 and 17*/
-	if (value % 17 == 0)
-		return value % 85 == 0 ? 2 : 4;
-	return 8;
-}
-
-/*profile must already have been inited with mode.
-It's ok to set some parameters of profile to done already.*/
-unsigned lodepng_get_color_profile(
-	LodePNGColorProfile *profile, const uint8_t *in, unsigned w, unsigned h, const LodePNGColorMode *mode) {
-	unsigned error = 0;
-	size_t i;
-	ColorTree tree;
-	size_t numpixels = w * h;
-
-	unsigned colored_done   = lodepng_is_greyscale_type(mode) ? 1 : 0;
-	unsigned alpha_done     = lodepng_can_have_alpha(mode) ? 0 : 1;
-	unsigned numcolors_done = 0;
-	unsigned bpp            = lodepng_get_bpp(mode);
-	unsigned bits_done      = bpp == 1 ? 1 : 0;
-	unsigned maxnumcolors   = 257;
-	unsigned sixteen        = 0;
-	if (bpp <= 8)
-		maxnumcolors = bpp == 1 ? 2 : (bpp == 2 ? 4 : (bpp == 4 ? 16 : 256));
-
-	color_tree_init(&tree);
-
-	/*Check if the 16-bit input is truly 16-bit*/
-	if (mode->bitdepth == 16) {
-		unsigned short r, g, b, a;
-		for (i = 0; i != numpixels; ++i) {
-			getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode);
-			if ((r & 255) != ((r >> 8) & 255) || (g & 255) != ((g >> 8) & 255) || (b & 255) != ((b >> 8) & 255) ||
-			    (a & 255) != ((a >> 8) & 255)) /*first and second byte differ*/
-			{
-				sixteen = 1;
-				break;
-			}
-		}
-	}
-
-	if (sixteen) {
-		unsigned short r = 0, g = 0, b = 0, a = 0;
-		profile->bits = 16;
-		bits_done = numcolors_done = 1; /*counting colors no longer useful, palette doesn't support 16-bit*/
-
-		for (i = 0; i != numpixels; ++i) {
-			getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode);
-
-			if (!colored_done && (r != g || r != b)) {
-				profile->colored = 1;
-				colored_done     = 1;
-			}
-
-			if (!alpha_done) {
-				unsigned matchkey = (r == profile->key_r && g == profile->key_g && b == profile->key_b);
-				if (a != 65535 && (a != 0 || (profile->key && !matchkey))) {
-					profile->alpha = 1;
-					alpha_done     = 1;
-					if (profile->bits < 8)
-						profile->bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/
-				} else if (a == 0 && !profile->alpha && !profile->key) {
-					profile->key   = 1;
-					profile->key_r = r;
-					profile->key_g = g;
-					profile->key_b = b;
-				} else if (a == 65535 && profile->key && matchkey) {
-					/* Color key cannot be used if an opaque pixel also has that RGB color. */
-					profile->alpha = 1;
-					alpha_done     = 1;
-				}
-			}
-			if (alpha_done && numcolors_done && colored_done && bits_done)
-				break;
-		}
-
-		if (profile->key && !profile->alpha) {
-			for (i = 0; i != numpixels; ++i) {
-				getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode);
-				if (a != 0 && r == profile->key_r && g == profile->key_g && b == profile->key_b) {
-					/* Color key cannot be used if an opaque pixel also has that RGB color. */
-					profile->alpha = 1;
-					alpha_done     = 1;
-				}
-			}
-		}
-	} else /* < 16-bit */
-	{
-		uint8_t r = 0, g = 0, b = 0, a = 0;
-		for (i = 0; i != numpixels; ++i) {
-			getPixelColorRGBA8(&r, &g, &b, &a, in, i, mode);
-
-			if (!bits_done && profile->bits < 8) {
-				/*only r is checked, < 8 bits is only relevant for greyscale*/
-				unsigned bits = getValueRequiredBits(r);
-				if (bits > profile->bits)
-					profile->bits = bits;
-			}
-			bits_done = (profile->bits >= bpp);
-
-			if (!colored_done && (r != g || r != b)) {
-				profile->colored = 1;
-				colored_done     = 1;
-				if (profile->bits < 8)
-					profile->bits = 8; /*PNG has no colored modes with less than 8-bit per channel*/
-			}
-
-			if (!alpha_done) {
-				unsigned matchkey = (r == profile->key_r && g == profile->key_g && b == profile->key_b);
-				if (a != 255 && (a != 0 || (profile->key && !matchkey))) {
-					profile->alpha = 1;
-					alpha_done     = 1;
-					if (profile->bits < 8)
-						profile->bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/
-				} else if (a == 0 && !profile->alpha && !profile->key) {
-					profile->key   = 1;
-					profile->key_r = r;
-					profile->key_g = g;
-					profile->key_b = b;
-				} else if (a == 255 && profile->key && matchkey) {
-					/* Color key cannot be used if an opaque pixel also has that RGB color. */
-					profile->alpha = 1;
-					alpha_done     = 1;
-					if (profile->bits < 8)
-						profile->bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/
-				}
-			}
-
-			if (!numcolors_done) {
-				if (!color_tree_has(&tree, r, g, b, a)) {
-					color_tree_add(&tree, r, g, b, a, profile->numcolors);
-					if (profile->numcolors < 256) {
-						uint8_t *p = profile->palette;
-						unsigned n       = profile->numcolors;
-						p[n * 4 + 0]     = r;
-						p[n * 4 + 1]     = g;
-						p[n * 4 + 2]     = b;
-						p[n * 4 + 3]     = a;
-					}
-					++profile->numcolors;
-					numcolors_done = profile->numcolors >= maxnumcolors;
-				}
-			}
-
-			if (alpha_done && numcolors_done && colored_done && bits_done)
-				break;
-		}
-
-		if (profile->key && !profile->alpha) {
-			for (i = 0; i != numpixels; ++i) {
-				getPixelColorRGBA8(&r, &g, &b, &a, in, i, mode);
-				if (a != 0 && r == profile->key_r && g == profile->key_g && b == profile->key_b) {
-					/* Color key cannot be used if an opaque pixel also has that RGB color. */
-					profile->alpha = 1;
-					alpha_done     = 1;
-				}
-			}
-		}
-
-		/*make the profile's key always 16-bit for consistency - repeat each byte twice*/
-		profile->key_r += (profile->key_r << 8);
-		profile->key_g += (profile->key_g << 8);
-		profile->key_b += (profile->key_b << 8);
-	}
-
-	color_tree_cleanup(&tree);
-	return error;
-}
-
-/*Automatically chooses color type that gives smallest amount of bits in the
-output image, e.g. grey if there are only greyscale pixels, palette if there
-are less than 256 colors, ...
-Updates values of mode with a potentially smaller color model. mode_out should
-contain the user chosen color model, but will be overwritten with the new chosen one.*/
-unsigned lodepng_auto_choose_color(
-	LodePNGColorMode *mode_out, const uint8_t *image, unsigned w, unsigned h, const LodePNGColorMode *mode_in) {
-	LodePNGColorProfile prof;
-	unsigned error = 0;
-	unsigned i, n, palettebits, grey_ok, palette_ok;
-
-	lodepng_color_profile_init(&prof);
-	error = lodepng_get_color_profile(&prof, image, w, h, mode_in);
-	if (error)
-		return error;
-	mode_out->key_defined = 0;
-
-	if (prof.key && w * h <= 16) {
-		prof.alpha = 1; /*too few pixels to justify tRNS chunk overhead*/
-		if (prof.bits < 8)
-			prof.bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/
-	}
-	grey_ok     = !prof.colored && !prof.alpha; /*grey without alpha, with potentially low bits*/
-	n           = prof.numcolors;
-	palettebits = n <= 2 ? 1 : (n <= 4 ? 2 : (n <= 16 ? 4 : 8));
-	palette_ok  = n <= 256 && (n * 2 < w * h) && prof.bits <= 8;
-	if (w * h < n * 2)
-		palette_ok = 0; /*don't add palette overhead if image has only a few pixels*/
-	if (grey_ok && prof.bits <= palettebits)
-		palette_ok = 0; /*grey is less overhead*/
-
-	if (palette_ok) {
-		uint8_t *p = prof.palette;
-		lodepng_palette_clear(mode_out); /*remove potential earlier palette*/
-		for (i = 0; i != prof.numcolors; ++i) {
-			error = lodepng_palette_add(mode_out, p[i * 4 + 0], p[i * 4 + 1], p[i * 4 + 2], p[i * 4 + 3]);
-			if (error)
-				break;
-		}
-
-		mode_out->colortype = LCT_PALETTE;
-		mode_out->bitdepth  = palettebits;
-
-		if (mode_in->colortype == LCT_PALETTE && mode_in->palettesize >= mode_out->palettesize &&
-		    mode_in->bitdepth == mode_out->bitdepth) {
-			/*If input should have same palette colors, keep original to preserve its order and prevent conversion*/
-			lodepng_color_mode_cleanup(mode_out);
-			lodepng_color_mode_copy(mode_out, mode_in);
-		}
-	} else /*8-bit or 16-bit per channel*/
-	{
-		mode_out->bitdepth = prof.bits;
-		mode_out->colortype =
-			prof.alpha ? (prof.colored ? LCT_RGBA : LCT_GREY_ALPHA) : (prof.colored ? LCT_RGB : LCT_GREY);
-
-		if (prof.key && !prof.alpha) {
-			unsigned mask         = (1u << mode_out->bitdepth) - 1u; /*profile always uses 16-bit, mask converts it*/
-			mode_out->key_r       = prof.key_r & mask;
-			mode_out->key_g       = prof.key_g & mask;
-			mode_out->key_b       = prof.key_b & mask;
-			mode_out->key_defined = 1;
-		}
-	}
-
-	return error;
-}
-
-#endif /* #ifdef LODEPNG_COMPILE_ENCODER */
-
-/*
-Paeth predicter, used by PNG filter type 4
-The parameters are of type short, but should come from uint8_ts, the shorts
-are only needed to make the paeth calculation correct.
-*/
-static uint8_t paethPredictor(short a, short b, short c) {
-	short pa = abs(b - c);
-	short pb = abs(a - c);
-	short pc = abs(a + b - c - c);
-
-	if (pc < pa && pc < pb)
-		return (uint8_t)c;
-	else if (pb < pa)
-		return (uint8_t)b;
-	else
-		return (uint8_t)a;
-}
-
-/*shared values used by multiple Adam7 related functions*/
-
-static const unsigned ADAM7_IX[7] = {0, 4, 0, 2, 0, 1, 0}; /*x start values*/
-static const unsigned ADAM7_IY[7] = {0, 0, 4, 0, 2, 0, 1}; /*y start values*/
-static const unsigned ADAM7_DX[7] = {8, 8, 4, 4, 2, 2, 1}; /*x delta values*/
-static const unsigned ADAM7_DY[7] = {8, 8, 8, 4, 4, 2, 2}; /*y delta values*/
-
-/*
-Outputs various dimensions and positions in the image related to the Adam7 reduced images.
-passw: output containing the width of the 7 passes
-passh: output containing the height of the 7 passes
-filter_passstart: output containing the index of the start and end of each
- reduced image with filter bytes
-padded_passstart output containing the index of the start and end of each
- reduced image when without filter bytes but with padded scanlines
-passstart: output containing the index of the start and end of each reduced
- image without padding between scanlines, but still padding between the images
-w, h: width and height of non-interlaced image
-bpp: bits per pixel
-"padded" is only relevant if bpp is less than 8 and a scanline or image does not
- end at a full byte
-*/
-static void Adam7_getpassvalues(
-	unsigned passw[7], unsigned passh[7], size_t filter_passstart[8], size_t padded_passstart[8], size_t passstart[8],
-	unsigned w, unsigned h, unsigned bpp) {
-	/*the passstart values have 8 values: the 8th one indicates the byte after the end of the 7th (= last) pass*/
-	unsigned i;
-
-	/*calculate width and height in pixels of each pass*/
-	for (i = 0; i != 7; ++i) {
-		passw[i] = (w + ADAM7_DX[i] - ADAM7_IX[i] - 1) / ADAM7_DX[i];
-		passh[i] = (h + ADAM7_DY[i] - ADAM7_IY[i] - 1) / ADAM7_DY[i];
-		if (passw[i] == 0)
-			passh[i] = 0;
-		if (passh[i] == 0)
-			passw[i] = 0;
-	}
-
-	filter_passstart[0] = padded_passstart[0] = passstart[0] = 0;
-	for (i = 0; i != 7; ++i) {
-		/*if passw[i] is 0, it's 0 bytes, not 1 (no filtertype-byte)*/
-		filter_passstart[i + 1] =
-			filter_passstart[i] + ((passw[i] && passh[i]) ? passh[i] * (1 + (passw[i] * bpp + 7) / 8) : 0);
-		/*bits padded if needed to fill full byte at end of each scanline*/
-		padded_passstart[i + 1] = padded_passstart[i] + passh[i] * ((passw[i] * bpp + 7) / 8);
-		/*only padded at end of reduced image*/
-		passstart[i + 1] = passstart[i] + (passh[i] * passw[i] * bpp + 7) / 8;
-	}
-}
-
-#ifdef LODEPNG_COMPILE_DECODER
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / PNG Decoder                                                            / */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-/*read the information from the header and store it in the LodePNGInfo. return value is error*/
-unsigned lodepng_inspect(unsigned *w, unsigned *h, LodePNGState *state, const uint8_t *in, size_t insize) {
-	LodePNGInfo *info = &state->info_png;
-	if (insize == 0 || in == 0) {
-		CERROR_RETURN_ERROR(state->error, 48); /*error: the given data is empty*/
-	}
-	if (insize < 33) {
-		CERROR_RETURN_ERROR(state->error, 27); /*error: the data length is smaller than the length of a PNG header*/
-	}
-
-	/*when decoding a new PNG image, make sure all parameters created after previous decoding are reset*/
-	lodepng_info_cleanup(info);
-	lodepng_info_init(info);
-
-	if (in[0] != 137 || in[1] != 80 || in[2] != 78 || in[3] != 71 || in[4] != 13 || in[5] != 10 || in[6] != 26 ||
-	    in[7] != 10) {
-		CERROR_RETURN_ERROR(state->error, 28); /*error: the first 8 bytes are not the correct PNG signature*/
-	}
-	if (lodepng_chunk_length(in + 8) != 13) {
-		CERROR_RETURN_ERROR(state->error, 94); /*error: header size must be 13 bytes*/
-	}
-	if (!lodepng_chunk_type_equals(in + 8, "IHDR")) {
-		CERROR_RETURN_ERROR(state->error, 29); /*error: it doesn't start with a IHDR chunk!*/
-	}
-
-	/*read the values given in the header*/
-	*w                       = lodepng_read32bitInt(&in[16]);
-	*h                       = lodepng_read32bitInt(&in[20]);
-	info->color.bitdepth     = in[24];
-	info->color.colortype    = (LodePNGColorType)in[25];
-	info->compression_method = in[26];
-	info->filter_method      = in[27];
-	info->interlace_method   = in[28];
-
-	if (*w == 0 || *h == 0) {
-		CERROR_RETURN_ERROR(state->error, 93);
-	}
-
-	if (!state->decoder.ignore_crc) {
-		unsigned CRC      = lodepng_read32bitInt(&in[29]);
-		unsigned checksum = lodepng_crc32(&in[12], 17);
-		if (CRC != checksum) {
-			CERROR_RETURN_ERROR(state->error, 57); /*invalid CRC*/
-		}
-	}
-
-	/*error: only compression method 0 is allowed in the specification*/
-	if (info->compression_method != 0)
-		CERROR_RETURN_ERROR(state->error, 32);
-	/*error: only filter method 0 is allowed in the specification*/
-	if (info->filter_method != 0)
-		CERROR_RETURN_ERROR(state->error, 33);
-	/*error: only interlace methods 0 and 1 exist in the specification*/
-	if (info->interlace_method > 1)
-		CERROR_RETURN_ERROR(state->error, 34);
-
-	state->error = checkColorValidity(info->color.colortype, info->color.bitdepth);
-	return state->error;
-}
-
-static unsigned unfilterScanline(
-	uint8_t *recon, const uint8_t *scanline, const uint8_t *precon, size_t bytewidth,
-	uint8_t filterType, size_t length) {
-	/*
-	For PNG filter method 0
-	unfilter a PNG image scanline by scanline. when the pixels are smaller than 1 byte,
-	the filter works byte per byte (bytewidth = 1)
-	precon is the previous unfiltered scanline, recon the result, scanline the current one
-	the incoming scanlines do NOT include the filtertype byte, that one is given in the parameter filterType instead
-	recon and scanline MAY be the same memory address! precon must be disjoint.
-	*/
-
-	size_t i;
-	switch (filterType) {
-	case 0:
-		for (i = 0; i != length; ++i)
-			recon[i] = scanline[i];
-		break;
-	case 1:
-		for (i = 0; i != bytewidth; ++i)
-			recon[i] = scanline[i];
-		for (i = bytewidth; i < length; ++i)
-			recon[i] = scanline[i] + recon[i - bytewidth];
-		break;
-	case 2:
-		if (precon) {
-			for (i = 0; i != length; ++i)
-				recon[i] = scanline[i] + precon[i];
-		} else {
-			for (i = 0; i != length; ++i)
-				recon[i] = scanline[i];
-		}
-		break;
-	case 3:
-		if (precon) {
-			for (i = 0; i != bytewidth; ++i)
-				recon[i] = scanline[i] + (precon[i] >> 1);
-			for (i = bytewidth; i < length; ++i)
-				recon[i] = scanline[i] + ((recon[i - bytewidth] + precon[i]) >> 1);
-		} else {
-			for (i = 0; i != bytewidth; ++i)
-				recon[i] = scanline[i];
-			for (i = bytewidth; i < length; ++i)
-				recon[i] = scanline[i] + (recon[i - bytewidth] >> 1);
-		}
-		break;
-	case 4:
-		if (precon) {
-			for (i = 0; i != bytewidth; ++i) {
-				recon[i] = (scanline[i] + precon[i]); /*paethPredictor(0, precon[i], 0) is always precon[i]*/
-			}
-			for (i = bytewidth; i < length; ++i) {
-				recon[i] = (scanline[i] + paethPredictor(recon[i - bytewidth], precon[i], precon[i - bytewidth]));
-			}
-		} else {
-			for (i = 0; i != bytewidth; ++i) {
-				recon[i] = scanline[i];
-			}
-			for (i = bytewidth; i < length; ++i) {
-				/*paethPredictor(recon[i - bytewidth], 0, 0) is always recon[i - bytewidth]*/
-				recon[i] = (scanline[i] + recon[i - bytewidth]);
-			}
-		}
-		break;
-	default:
-		return 36; /*error: unexisting filter type given*/
-	}
-	return 0;
-}
-
-static unsigned unfilter(uint8_t *out, const uint8_t *in, unsigned w, unsigned h, unsigned bpp) {
-	/*
-	For PNG filter method 0
-	this function unfilters a single image (e.g. without interlacing this is called once, with Adam7 seven times)
-	out must have enough bytes allocated already, in must have the scanlines + 1 filtertype byte per scanline
-	w and h are image dimensions or dimensions of reduced image, bpp is bits per pixel
-	in and out are allowed to be the same memory address (but aren't the same size since in has the extra filter bytes)
-	*/
-
-	unsigned y;
-	uint8_t *prevline = 0;
-
-	/*bytewidth is used for filtering, is 1 when bpp < 8, number of bytes per pixel otherwise*/
-	size_t bytewidth = (bpp + 7) / 8;
-	size_t linebytes = (w * bpp + 7) / 8;
-
-	for (y = 0; y < h; ++y) {
-		size_t outindex          = linebytes * y;
-		size_t inindex           = (1 + linebytes) * y; /*the extra filterbyte added to each row*/
-		uint8_t filterType = in[inindex];
-
-		CERROR_TRY_RETURN(
-			unfilterScanline(&out[outindex], &in[inindex + 1], prevline, bytewidth, filterType, linebytes));
-
-		prevline = &out[outindex];
-	}
-
-	return 0;
-}
-
-/*
-in: Adam7 interlaced image, with no padding bits between scanlines, but between
- reduced images so that each reduced image starts at a byte.
-out: the same pixels, but re-ordered so that they're now a non-interlaced image with size w*h
-bpp: bits per pixel
-out has the following size in bits: w * h * bpp.
-in is possibly bigger due to padding bits between reduced images.
-out must be big enough AND must be 0 everywhere if bpp < 8 in the current implementation
-(because that's likely a little bit faster)
-NOTE: comments about padding bits are only relevant if bpp < 8
-*/
-static void Adam7_deinterlace(uint8_t *out, const uint8_t *in, unsigned w, unsigned h, unsigned bpp) {
-	unsigned passw[7], passh[7];
-	size_t filter_passstart[8], padded_passstart[8], passstart[8];
-	unsigned i;
-
-	Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp);
-
-	if (bpp >= 8) {
-		for (i = 0; i != 7; ++i) {
-			unsigned x, y, b;
-			size_t bytewidth = bpp / 8;
-			for (y = 0; y < passh[i]; ++y)
-				for (x = 0; x < passw[i]; ++x) {
-					size_t pixelinstart = passstart[i] + (y * passw[i] + x) * bytewidth;
-					size_t pixeloutstart =
-						((ADAM7_IY[i] + y * ADAM7_DY[i]) * w + ADAM7_IX[i] + x * ADAM7_DX[i]) * bytewidth;
-					for (b = 0; b < bytewidth; ++b) {
-						out[pixeloutstart + b] = in[pixelinstart + b];
-					}
-				}
-		}
-	} else /*bpp < 8: Adam7 with pixels < 8 bit is a bit trickier: with bit pointers*/
-	{
-		for (i = 0; i != 7; ++i) {
-			unsigned x, y, b;
-			unsigned ilinebits = bpp * passw[i];
-			unsigned olinebits = bpp * w;
-			size_t obp, ibp; /*bit pointers (for out and in buffer)*/
-			for (y = 0; y < passh[i]; ++y)
-				for (x = 0; x < passw[i]; ++x) {
-					ibp = (8 * passstart[i]) + (y * ilinebits + x * bpp);
-					obp = (ADAM7_IY[i] + y * ADAM7_DY[i]) * olinebits + (ADAM7_IX[i] + x * ADAM7_DX[i]) * bpp;
-					for (b = 0; b < bpp; ++b) {
-						uint8_t bit = readBitFromReversedStream(&ibp, in);
-						/*note that this function assumes the out buffer is completely 0, use setBitOfReversedStream
-						 * otherwise*/
-						setBitOfReversedStream0(&obp, out, bit);
-					}
-				}
-		}
-	}
-}
-
-static void
-removePaddingBits(uint8_t *out, const uint8_t *in, size_t olinebits, size_t ilinebits, unsigned h) {
-	/*
-	After filtering there are still padding bits if scanlines have non multiple of 8 bit amounts. They need
-	to be removed (except at last scanline of (Adam7-reduced) image) before working with pure image buffers
-	for the Adam7 code, the color convert code and the output to the user.
-	in and out are allowed to be the same buffer, in may also be higher but still overlapping; in must
-	have >= ilinebits*h bits, out must have >= olinebits*h bits, olinebits must be <= ilinebits
-	also used to move bits after earlier such operations happened, e.g. in a sequence of reduced images from Adam7
-	only useful if (ilinebits - olinebits) is a value in the range 1..7
-	*/
-	unsigned y;
-	size_t diff = ilinebits - olinebits;
-	size_t ibp = 0, obp = 0; /*input and output bit pointers*/
-	for (y = 0; y < h; ++y) {
-		size_t x;
-		for (x = 0; x < olinebits; ++x) {
-			uint8_t bit = readBitFromReversedStream(&ibp, in);
-			setBitOfReversedStream(&obp, out, bit);
-		}
-		ibp += diff;
-	}
-}
-
-/*out must be buffer big enough to contain full image, and in must contain the full decompressed data from
-the IDAT chunks (with filter index bytes and possible padding bits)
-return value is error*/
-static unsigned
-postProcessScanlines(uint8_t *out, uint8_t *in, unsigned w, unsigned h, const LodePNGInfo *info_png) {
-	/*
-	This function converts the filtered-padded-interlaced data into pure 2D image buffer with the PNG's colortype.
-	Steps:
-	*) if no Adam7: 1) unfilter 2) remove padding bits (= posible extra bits per scanline if bpp < 8)
-	*) if adam7: 1) 7x unfilter 2) 7x remove padding bits 3) Adam7_deinterlace
-	NOTE: the in buffer will be overwritten with intermediate data!
-	*/
-	unsigned bpp = lodepng_get_bpp(&info_png->color);
-	if (bpp == 0)
-		return 31; /*error: invalid colortype*/
-
-	if (info_png->interlace_method == 0) {
-		if (bpp < 8 && w * bpp != ((w * bpp + 7) / 8) * 8) {
-			CERROR_TRY_RETURN(unfilter(in, in, w, h, bpp));
-			removePaddingBits(out, in, w * bpp, ((w * bpp + 7) / 8) * 8, h);
-		}
-		/*we can immediately filter into the out buffer, no other steps needed*/
-		else
-			CERROR_TRY_RETURN(unfilter(out, in, w, h, bpp));
-	} else /*interlace_method is 1 (Adam7)*/
-	{
-		unsigned passw[7], passh[7];
-		size_t filter_passstart[8], padded_passstart[8], passstart[8];
-		unsigned i;
-
-		Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp);
-
-		for (i = 0; i != 7; ++i) {
-			CERROR_TRY_RETURN(unfilter(&in[padded_passstart[i]], &in[filter_passstart[i]], passw[i], passh[i], bpp));
-			/*TODO: possible efficiency improvement: if in this reduced image the bits fit nicely in 1 scanline,
-			move bytes instead of bits or move not at all*/
-			if (bpp < 8) {
-				/*remove padding bits in scanlines; after this there still may be padding
-				bits between the different reduced images: each reduced image still starts nicely at a byte*/
-				removePaddingBits(
-					&in[passstart[i]],
-					&in[padded_passstart[i]],
-					passw[i] * bpp,
-					((passw[i] * bpp + 7) / 8) * 8,
-					passh[i]);
-			}
-		}
-
-		Adam7_deinterlace(out, in, w, h, bpp);
-	}
-
-	return 0;
-}
-
-static unsigned readChunk_PLTE(LodePNGColorMode *color, const uint8_t *data, size_t chunkLength) {
-	unsigned pos = 0, i;
-	if (color->palette)
-		lodepng_free(color->palette);
-	color->palettesize = chunkLength / 3;
-	color->palette     = (uint8_t *)lodepng_malloc(4 * color->palettesize);
-	if (!color->palette && color->palettesize) {
-		color->palettesize = 0;
-		return 83; /*alloc fail*/
-	}
-	if (color->palettesize > 256)
-		return 38; /*error: palette too big*/
-
-	for (i = 0; i != color->palettesize; ++i) {
-		color->palette[4 * i + 0] = data[pos++]; /*R*/
-		color->palette[4 * i + 1] = data[pos++]; /*G*/
-		color->palette[4 * i + 2] = data[pos++]; /*B*/
-		color->palette[4 * i + 3] = 255;         /*alpha*/
-	}
-
-	return 0; /* OK */
-}
-
-static unsigned readChunk_tRNS(LodePNGColorMode *color, const uint8_t *data, size_t chunkLength) {
-	unsigned i;
-	if (color->colortype == LCT_PALETTE) {
-		/*error: more alpha values given than there are palette entries*/
-		if (chunkLength > color->palettesize)
-			return 38;
-
-		for (i = 0; i != chunkLength; ++i)
-			color->palette[4 * i + 3] = data[i];
-	} else if (color->colortype == LCT_GREY) {
-		/*error: this chunk must be 2 bytes for greyscale image*/
-		if (chunkLength != 2)
-			return 30;
-
-		color->key_defined = 1;
-		color->key_r = color->key_g = color->key_b = 256u * data[0] + data[1];
-	} else if (color->colortype == LCT_RGB) {
-		/*error: this chunk must be 6 bytes for RGB image*/
-		if (chunkLength != 6)
-			return 41;
-
-		color->key_defined = 1;
-		color->key_r       = 256u * data[0] + data[1];
-		color->key_g       = 256u * data[2] + data[3];
-		color->key_b       = 256u * data[4] + data[5];
-	} else
-		return 42; /*error: tRNS chunk not allowed for other color models*/
-
-	return 0; /* OK */
-}
-
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-/*background color chunk (bKGD)*/
-static unsigned readChunk_bKGD(LodePNGInfo *info, const uint8_t *data, size_t chunkLength) {
-	if (info->color.colortype == LCT_PALETTE) {
-		/*error: this chunk must be 1 byte for indexed color image*/
-		if (chunkLength != 1)
-			return 43;
-
-		info->background_defined = 1;
-		info->background_r = info->background_g = info->background_b = data[0];
-	} else if (info->color.colortype == LCT_GREY || info->color.colortype == LCT_GREY_ALPHA) {
-		/*error: this chunk must be 2 bytes for greyscale image*/
-		if (chunkLength != 2)
-			return 44;
-
-		info->background_defined = 1;
-		info->background_r = info->background_g = info->background_b = 256u * data[0] + data[1];
-	} else if (info->color.colortype == LCT_RGB || info->color.colortype == LCT_RGBA) {
-		/*error: this chunk must be 6 bytes for greyscale image*/
-		if (chunkLength != 6)
-			return 45;
-
-		info->background_defined = 1;
-		info->background_r       = 256u * data[0] + data[1];
-		info->background_g       = 256u * data[2] + data[3];
-		info->background_b       = 256u * data[4] + data[5];
-	}
-
-	return 0; /* OK */
-}
-
-/*text chunk (tEXt)*/
-static unsigned readChunk_tEXt(LodePNGInfo *info, const uint8_t *data, size_t chunkLength) {
-	unsigned error = 0;
-	char *key = 0, *str = 0;
-	unsigned i;
-
-	while (!error) /*not really a while loop, only used to break on error*/
-	{
-		unsigned length, string2_begin;
-
-		length = 0;
-		while (length < chunkLength && data[length] != 0)
-			++length;
-		/*even though it's not allowed by the standard, no error is thrown if
-		there's no null termination char, if the text is empty*/
-		if (length < 1 || length > 79)
-			CERROR_BREAK(error, 89); /*keyword too short or long*/
-
-		key = (char *)lodepng_malloc(length + 1);
-		if (!key)
-			CERROR_BREAK(error, 83); /*alloc fail*/
-
-		key[length] = 0;
-		for (i = 0; i != length; ++i)
-			key[i] = (char)data[i];
-
-		string2_begin = length + 1; /*skip keyword null terminator*/
-
-		length = chunkLength < string2_begin ? 0 : chunkLength - string2_begin;
-		str    = (char *)lodepng_malloc(length + 1);
-		if (!str)
-			CERROR_BREAK(error, 83); /*alloc fail*/
-
-		str[length] = 0;
-		for (i = 0; i != length; ++i)
-			str[i] = (char)data[string2_begin + i];
-
-		error = lodepng_add_text(info, key, str);
-
-		break;
-	}
-
-	lodepng_free(key);
-	lodepng_free(str);
-
-	return error;
-}
-
-/*compressed text chunk (zTXt)*/
-static unsigned readChunk_zTXt(
-	LodePNGInfo *info, const LodePNGDecompressSettings *zlibsettings, const uint8_t *data, size_t chunkLength) {
-	unsigned error = 0;
-	unsigned i;
-
-	unsigned length, string2_begin;
-	char *key = 0;
-	ucvector decoded;
-
-	ucvector_init(&decoded);
-
-	while (!error) /*not really a while loop, only used to break on error*/
-	{
-		for (length = 0; length < chunkLength && data[length] != 0; ++length)
-			;
-		if (length + 2 >= chunkLength)
-			CERROR_BREAK(error, 75); /*no null termination, corrupt?*/
-		if (length < 1 || length > 79)
-			CERROR_BREAK(error, 89); /*keyword too short or long*/
-
-		key = (char *)lodepng_malloc(length + 1);
-		if (!key)
-			CERROR_BREAK(error, 83); /*alloc fail*/
-
-		key[length] = 0;
-		for (i = 0; i != length; ++i)
-			key[i] = (char)data[i];
-
-		if (data[length + 1] != 0)
-			CERROR_BREAK(error, 72); /*the 0 byte indicating compression must be 0*/
-
-		string2_begin = length + 2;
-		if (string2_begin > chunkLength)
-			CERROR_BREAK(error, 75); /*no null termination, corrupt?*/
-
-		length = chunkLength - string2_begin;
-		/*will fail if zlib error, e.g. if length is too small*/
-		error = zlib_decompress(
-			&decoded.data, &decoded.size, (uint8_t *)(&data[string2_begin]), length, zlibsettings);
-		if (error)
-			break;
-		ucvector_push_back(&decoded, 0);
-
-		error = lodepng_add_text(info, key, (char *)decoded.data);
-
-		break;
-	}
-
-	lodepng_free(key);
-	ucvector_cleanup(&decoded);
-
-	return error;
-}
-
-/*international text chunk (iTXt)*/
-static unsigned readChunk_iTXt(
-	LodePNGInfo *info, const LodePNGDecompressSettings *zlibsettings, const uint8_t *data, size_t chunkLength) {
-	unsigned error = 0;
-	unsigned i;
-
-	unsigned length, begin, compressed;
-	char *key = 0, *langtag = 0, *transkey = 0;
-	ucvector decoded;
-	ucvector_init(&decoded);
-
-	while (!error) /*not really a while loop, only used to break on error*/
-	{
-		/*Quick check if the chunk length isn't too small. Even without check
-		it'd still fail with other error checks below if it's too short. This just gives a different error code.*/
-		if (chunkLength < 5)
-			CERROR_BREAK(error, 30); /*iTXt chunk too short*/
-
-		/*read the key*/
-		for (length = 0; length < chunkLength && data[length] != 0; ++length)
-			;
-		if (length + 3 >= chunkLength)
-			CERROR_BREAK(error, 75); /*no null termination char, corrupt?*/
-		if (length < 1 || length > 79)
-			CERROR_BREAK(error, 89); /*keyword too short or long*/
-
-		key = (char *)lodepng_malloc(length + 1);
-		if (!key)
-			CERROR_BREAK(error, 83); /*alloc fail*/
-
-		key[length] = 0;
-		for (i = 0; i != length; ++i)
-			key[i] = (char)data[i];
-
-		/*read the compression method*/
-		compressed = data[length + 1];
-		if (data[length + 2] != 0)
-			CERROR_BREAK(error, 72); /*the 0 byte indicating compression must be 0*/
-
-		/*even though it's not allowed by the standard, no error is thrown if
-		there's no null termination char, if the text is empty for the next 3 texts*/
-
-		/*read the langtag*/
-		begin  = length + 3;
-		length = 0;
-		for (i = begin; i < chunkLength && data[i] != 0; ++i)
-			++length;
-
-		langtag = (char *)lodepng_malloc(length + 1);
-		if (!langtag)
-			CERROR_BREAK(error, 83); /*alloc fail*/
-
-		langtag[length] = 0;
-		for (i = 0; i != length; ++i)
-			langtag[i] = (char)data[begin + i];
-
-		/*read the transkey*/
-		begin += length + 1;
-		length = 0;
-		for (i = begin; i < chunkLength && data[i] != 0; ++i)
-			++length;
-
-		transkey = (char *)lodepng_malloc(length + 1);
-		if (!transkey)
-			CERROR_BREAK(error, 83); /*alloc fail*/
-
-		transkey[length] = 0;
-		for (i = 0; i != length; ++i)
-			transkey[i] = (char)data[begin + i];
-
-		/*read the actual text*/
-		begin += length + 1;
-
-		length = chunkLength < begin ? 0 : chunkLength - begin;
-
-		if (compressed) {
-			/*will fail if zlib error, e.g. if length is too small*/
-			error =
-				zlib_decompress(&decoded.data, &decoded.size, (uint8_t *)(&data[begin]), length, zlibsettings);
-			if (error)
-				break;
-			if (decoded.allocsize < decoded.size)
-				decoded.allocsize = decoded.size;
-			ucvector_push_back(&decoded, 0);
-		} else {
-			if (!ucvector_resize(&decoded, length + 1))
-				CERROR_BREAK(error, 83 /*alloc fail*/);
-
-			decoded.data[length] = 0;
-			for (i = 0; i != length; ++i)
-				decoded.data[i] = data[begin + i];
-		}
-
-		error = lodepng_add_itext(info, key, langtag, transkey, (char *)decoded.data);
-
-		break;
-	}
-
-	lodepng_free(key);
-	lodepng_free(langtag);
-	lodepng_free(transkey);
-	ucvector_cleanup(&decoded);
-
-	return error;
-}
-
-static unsigned readChunk_tIME(LodePNGInfo *info, const uint8_t *data, size_t chunkLength) {
-	if (chunkLength != 7)
-		return 73; /*invalid tIME chunk size*/
-
-	info->time_defined = 1;
-	info->time.year    = 256u * data[0] + data[1];
-	info->time.month   = data[2];
-	info->time.day     = data[3];
-	info->time.hour    = data[4];
-	info->time.minute  = data[5];
-	info->time.second  = data[6];
-
-	return 0; /* OK */
-}
-
-static unsigned readChunk_pHYs(LodePNGInfo *info, const uint8_t *data, size_t chunkLength) {
-	if (chunkLength != 9)
-		return 74; /*invalid pHYs chunk size*/
-
-	info->phys_defined = 1;
-	info->phys_x       = 16777216u * data[0] + 65536u * data[1] + 256u * data[2] + data[3];
-	info->phys_y       = 16777216u * data[4] + 65536u * data[5] + 256u * data[6] + data[7];
-	info->phys_unit    = data[8];
-
-	return 0; /* OK */
-}
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-
-/*read a PNG, the result will be in the same color type as the PNG (hence "generic")*/
-static void decodeGeneric(
-	uint8_t **out, unsigned *w, unsigned *h, LodePNGState *state, const uint8_t *in, size_t insize) {
-	uint8_t IEND = 0;
-	const uint8_t *chunk;
-	size_t i;
-	ucvector idat; /*the data from idat chunks*/
-	ucvector scanlines;
-	size_t predict;
-	size_t numpixels;
-	size_t outsize = 0;
-
-	/*for unknown chunk order*/
-	unsigned unknown = 0;
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-	unsigned critical_pos = 1; /*1 = after IHDR, 2 = after PLTE, 3 = after IDAT*/
-#endif                         /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-
-	/*provide some proper output values if error will happen*/
-	*out = 0;
-
-	state->error =
-		lodepng_inspect(w, h, state, in, insize); /*reads header and resets other parameters in state->info_png*/
-	if (state->error)
-		return;
-
-	numpixels = *w * *h;
-
-	/*multiplication overflow*/
-	if (*h != 0 && numpixels / *h != *w)
-		CERROR_RETURN(state->error, 92);
-	/*multiplication overflow possible further below. Allows up to 2^31-1 pixel
-	bytes with 16-bit RGBA, the rest is room for filter bytes.*/
-	if (numpixels > 268435455)
-		CERROR_RETURN(state->error, 92);
-
-	ucvector_init(&idat);
-	chunk = &in[33]; /*first byte of the first chunk after the header*/
-
-	/*loop through the chunks, ignoring unknown chunks and stopping at IEND chunk.
-	IDAT data is put at the start of the in buffer*/
-	while (!IEND && !state->error) {
-		unsigned chunkLength;
-		const uint8_t *data; /*the data in the chunk*/
-
-		/*error: size of the in buffer too small to contain next chunk*/
-		if ((size_t)((chunk - in) + 12) > insize || chunk < in)
-			CERROR_BREAK(state->error, 30);
-
-		/*length of the data of the chunk, excluding the length bytes, chunk type and CRC bytes*/
-		chunkLength = lodepng_chunk_length(chunk);
-		/*error: chunk length larger than the max PNG chunk size*/
-		if (chunkLength > 2147483647)
-			CERROR_BREAK(state->error, 63);
-
-		if ((size_t)((chunk - in) + chunkLength + 12) > insize || (chunk + chunkLength + 12) < in) {
-			CERROR_BREAK(state->error, 64); /*error: size of the in buffer too small to contain next chunk*/
-		}
-
-		data = lodepng_chunk_data_const(chunk);
-
-		/*IDAT chunk, containing compressed image data*/
-		if (lodepng_chunk_type_equals(chunk, "IDAT")) {
-			size_t oldsize = idat.size;
-			if (!ucvector_resize(&idat, oldsize + chunkLength))
-				CERROR_BREAK(state->error, 83 /*alloc fail*/);
-			for (i = 0; i != chunkLength; ++i)
-				idat.data[oldsize + i] = data[i];
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-			critical_pos = 3;
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-		}
-		/*IEND chunk*/
-		else if (lodepng_chunk_type_equals(chunk, "IEND")) {
-			IEND = 1;
-		}
-		/*palette chunk (PLTE)*/
-		else if (lodepng_chunk_type_equals(chunk, "PLTE")) {
-			state->error = readChunk_PLTE(&state->info_png.color, data, chunkLength);
-			if (state->error)
-				break;
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-			critical_pos = 2;
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-		}
-		/*palette transparency chunk (tRNS)*/
-		else if (lodepng_chunk_type_equals(chunk, "tRNS")) {
-			state->error = readChunk_tRNS(&state->info_png.color, data, chunkLength);
-			if (state->error)
-				break;
-		}
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-		/*background color chunk (bKGD)*/
-		else if (lodepng_chunk_type_equals(chunk, "bKGD")) {
-			state->error = readChunk_bKGD(&state->info_png, data, chunkLength);
-			if (state->error)
-				break;
-		}
-		/*text chunk (tEXt)*/
-		else if (lodepng_chunk_type_equals(chunk, "tEXt")) {
-			if (state->decoder.read_text_chunks) {
-				state->error = readChunk_tEXt(&state->info_png, data, chunkLength);
-				if (state->error)
-					break;
-			}
-		}
-		/*compressed text chunk (zTXt)*/
-		else if (lodepng_chunk_type_equals(chunk, "zTXt")) {
-			if (state->decoder.read_text_chunks) {
-				state->error = readChunk_zTXt(&state->info_png, &state->decoder.zlibsettings, data, chunkLength);
-				if (state->error)
-					break;
-			}
-		}
-		/*international text chunk (iTXt)*/
-		else if (lodepng_chunk_type_equals(chunk, "iTXt")) {
-			if (state->decoder.read_text_chunks) {
-				state->error = readChunk_iTXt(&state->info_png, &state->decoder.zlibsettings, data, chunkLength);
-				if (state->error)
-					break;
-			}
-		} else if (lodepng_chunk_type_equals(chunk, "tIME")) {
-			state->error = readChunk_tIME(&state->info_png, data, chunkLength);
-			if (state->error)
-				break;
-		} else if (lodepng_chunk_type_equals(chunk, "pHYs")) {
-			state->error = readChunk_pHYs(&state->info_png, data, chunkLength);
-			if (state->error)
-				break;
-		}
-#endif       /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-		else /*it's not an implemented chunk type, so ignore it: skip over the data*/
-		{
-			/*error: unknown critical chunk (5th bit of first byte of chunk type is 0)*/
-			if (!lodepng_chunk_ancillary(chunk))
-				CERROR_BREAK(state->error, 69);
-
-			unknown = 1;
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-			if (state->decoder.remember_unknown_chunks) {
-				state->error = lodepng_chunk_append(
-					&state->info_png.unknown_chunks_data[critical_pos - 1],
-					&state->info_png.unknown_chunks_size[critical_pos - 1],
-					chunk);
-				if (state->error)
-					break;
-			}
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-		}
-
-		if (!state->decoder.ignore_crc && !unknown) /*check CRC if wanted, only on known chunk types*/
-		{
-			if (lodepng_chunk_check_crc(chunk))
-				CERROR_BREAK(state->error, 57); /*invalid CRC*/
-		}
-
-		if (!IEND)
-			chunk = lodepng_chunk_next_const(chunk);
-	}
-
-	ucvector_init(&scanlines);
-	/*predict output size, to allocate exact size for output buffer to avoid more dynamic allocation.
-	If the decompressed size does not match the prediction, the image must be corrupt.*/
-	if (state->info_png.interlace_method == 0) {
-		/*The extra *h is added because this are the filter bytes every scanline starts with*/
-		predict = lodepng_get_raw_size_idat(*w, *h, &state->info_png.color) + *h;
-	} else {
-		/*Adam-7 interlaced: predicted size is the sum of the 7 sub-images sizes*/
-		const LodePNGColorMode *color = &state->info_png.color;
-		predict                       = 0;
-		predict += lodepng_get_raw_size_idat((*w + 7) >> 3, (*h + 7) >> 3, color) + ((*h + 7) >> 3);
-		if (*w > 4)
-			predict += lodepng_get_raw_size_idat((*w + 3) >> 3, (*h + 7) >> 3, color) + ((*h + 7) >> 3);
-		predict += lodepng_get_raw_size_idat((*w + 3) >> 2, (*h + 3) >> 3, color) + ((*h + 3) >> 3);
-		if (*w > 2)
-			predict += lodepng_get_raw_size_idat((*w + 1) >> 2, (*h + 3) >> 2, color) + ((*h + 3) >> 2);
-		predict += lodepng_get_raw_size_idat((*w + 1) >> 1, (*h + 1) >> 2, color) + ((*h + 1) >> 2);
-		if (*w > 1)
-			predict += lodepng_get_raw_size_idat((*w + 0) >> 1, (*h + 1) >> 1, color) + ((*h + 1) >> 1);
-		predict += lodepng_get_raw_size_idat((*w + 0), (*h + 0) >> 1, color) + ((*h + 0) >> 1);
-	}
-	if (!state->error && !ucvector_reserve(&scanlines, predict))
-		state->error = 83; /*alloc fail*/
-	if (!state->error) {
-		state->error =
-			zlib_decompress(&scanlines.data, &scanlines.size, idat.data, idat.size, &state->decoder.zlibsettings);
-		if (!state->error && scanlines.size != predict)
-			state->error = 91; /*decompressed size doesn't match prediction*/
-	}
-	ucvector_cleanup(&idat);
-
-	if (!state->error) {
-		outsize = lodepng_get_raw_size(*w, *h, &state->info_png.color);
-		*out    = (uint8_t *)lodepng_malloc(outsize);
-		if (!*out)
-			state->error = 83; /*alloc fail*/
-	}
-	if (!state->error) {
-		for (i = 0; i < outsize; i++)
-			(*out)[i] = 0;
-		state->error = postProcessScanlines(*out, scanlines.data, *w, *h, &state->info_png);
-	}
-	ucvector_cleanup(&scanlines);
-}
-
-unsigned lodepng_decode(
-	uint8_t **out, unsigned *w, unsigned *h, LodePNGState *state, const uint8_t *in, size_t insize) {
-	*out = 0;
-	decodeGeneric(out, w, h, state, in, insize);
-	if (state->error)
-		return state->error;
-	if (!state->decoder.color_convert || lodepng_color_mode_equal(&state->info_raw, &state->info_png.color)) {
-		/*same color type, no copying or converting of data needed*/
-		/*store the info_png color settings on the info_raw so that the info_raw still reflects what colortype
-		the raw image has to the end user*/
-		if (!state->decoder.color_convert) {
-			state->error = lodepng_color_mode_copy(&state->info_raw, &state->info_png.color);
-			if (state->error)
-				return state->error;
-		}
-	} else {
-		/*color conversion needed; sort of copy of the data*/
-		uint8_t *data = *out;
-		size_t outsize;
-
-		/*TODO: check if this works according to the statement in the documentation: "The converter can convert
-		from greyscale input color type, to 8-bit greyscale or greyscale with alpha"*/
-		if (!(state->info_raw.colortype == LCT_RGB || state->info_raw.colortype == LCT_RGBA) &&
-		    !(state->info_raw.bitdepth == 8)) {
-			return 56; /*unsupported color mode conversion*/
-		}
-
-		outsize = lodepng_get_raw_size(*w, *h, &state->info_raw);
-		*out    = (uint8_t *)lodepng_malloc(outsize);
-		if (!(*out)) {
-			state->error = 83; /*alloc fail*/
-		} else
-			state->error = lodepng_convert(*out, data, &state->info_raw, &state->info_png.color, *w, *h);
-		lodepng_free(data);
-	}
-	return state->error;
-}
-
-unsigned lodepng_decode_memory(
-	uint8_t **out, unsigned *w, unsigned *h, const uint8_t *in, size_t insize, LodePNGColorType colortype,
-	unsigned bitdepth) {
-	unsigned error;
-	LodePNGState state;
-	lodepng_state_init(&state);
-	state.info_raw.colortype = colortype;
-	state.info_raw.bitdepth  = bitdepth;
-	error                    = lodepng_decode(out, w, h, &state, in, insize);
-	lodepng_state_cleanup(&state);
-	return error;
-}
-
-unsigned lodepng_decode32(uint8_t **out, unsigned *w, unsigned *h, const uint8_t *in, size_t insize) {
-	return lodepng_decode_memory(out, w, h, in, insize, LCT_RGBA, 8);
-}
-
-unsigned lodepng_decode24(uint8_t **out, unsigned *w, unsigned *h, const uint8_t *in, size_t insize) {
-	return lodepng_decode_memory(out, w, h, in, insize, LCT_RGB, 8);
-}
-
-#ifdef LODEPNG_COMPILE_DISK
-unsigned lodepng_decode_file(
-	uint8_t **out, unsigned *w, unsigned *h, const char *filename, LodePNGColorType colortype,
-	unsigned bitdepth) {
-	uint8_t *buffer = 0;
-	size_t buffersize;
-	unsigned error;
-	error = lodepng_load_file(&buffer, &buffersize, filename);
-	if (!error)
-		error = lodepng_decode_memory(out, w, h, buffer, buffersize, colortype, bitdepth);
-	lodepng_free(buffer);
-	return error;
-}
-
-unsigned lodepng_decode32_file(uint8_t **out, unsigned *w, unsigned *h, const char *filename) {
-	return lodepng_decode_file(out, w, h, filename, LCT_RGBA, 8);
-}
-
-unsigned lodepng_decode24_file(uint8_t **out, unsigned *w, unsigned *h, const char *filename) {
-	return lodepng_decode_file(out, w, h, filename, LCT_RGB, 8);
-}
-#endif /*LODEPNG_COMPILE_DISK*/
-
-void lodepng_decoder_settings_init(LodePNGDecoderSettings *settings) {
-	settings->color_convert = 1;
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-	settings->read_text_chunks        = 1;
-	settings->remember_unknown_chunks = 0;
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-	settings->ignore_crc = 0;
-	lodepng_decompress_settings_init(&settings->zlibsettings);
-}
-
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-#if defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER)
-
-void lodepng_state_init(LodePNGState *state) {
-#ifdef LODEPNG_COMPILE_DECODER
-	lodepng_decoder_settings_init(&state->decoder);
-#endif /*LODEPNG_COMPILE_DECODER*/
-#ifdef LODEPNG_COMPILE_ENCODER
-	lodepng_encoder_settings_init(&state->encoder);
-#endif /*LODEPNG_COMPILE_ENCODER*/
-	lodepng_color_mode_init(&state->info_raw);
-	lodepng_info_init(&state->info_png);
-	state->error = 1;
-}
-
-void lodepng_state_cleanup(LodePNGState *state) {
-	lodepng_color_mode_cleanup(&state->info_raw);
-	lodepng_info_cleanup(&state->info_png);
-}
-
-void lodepng_state_copy(LodePNGState *dest, const LodePNGState *source) {
-	lodepng_state_cleanup(dest);
-	*dest = *source;
-	lodepng_color_mode_init(&dest->info_raw);
-	lodepng_info_init(&dest->info_png);
-	dest->error = lodepng_color_mode_copy(&dest->info_raw, &source->info_raw);
-	if (dest->error)
-		return;
-	dest->error = lodepng_info_copy(&dest->info_png, &source->info_png);
-	if (dest->error)
-		return;
-}
-
-#endif /* defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) */
-
-#ifdef LODEPNG_COMPILE_ENCODER
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* / PNG Encoder                                                            / */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-/*chunkName must be string of 4 characters*/
-static unsigned addChunk(ucvector *out, const char *chunkName, const uint8_t *data, size_t length) {
-	CERROR_TRY_RETURN(lodepng_chunk_create(&out->data, &out->size, (unsigned)length, chunkName, data));
-	out->allocsize = out->size; /*fix the allocsize again*/
-	return 0;
-}
-
-static void writeSignature(ucvector *out) {
-	/*8 bytes PNG signature, aka the magic bytes*/
-	ucvector_push_back(out, 137);
-	ucvector_push_back(out, 80);
-	ucvector_push_back(out, 78);
-	ucvector_push_back(out, 71);
-	ucvector_push_back(out, 13);
-	ucvector_push_back(out, 10);
-	ucvector_push_back(out, 26);
-	ucvector_push_back(out, 10);
-}
-
-static unsigned addChunk_IHDR(
-	ucvector *out, unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth, unsigned interlace_method) {
-	unsigned error = 0;
-	ucvector header;
-	ucvector_init(&header);
-
-	lodepng_add32bitInt(&header, w);                       /*width*/
-	lodepng_add32bitInt(&header, h);                       /*height*/
-	ucvector_push_back(&header, (uint8_t)bitdepth);  /*bit depth*/
-	ucvector_push_back(&header, (uint8_t)colortype); /*color type*/
-	ucvector_push_back(&header, 0);                        /*compression method*/
-	ucvector_push_back(&header, 0);                        /*filter method*/
-	ucvector_push_back(&header, interlace_method);         /*interlace method*/
-
-	error = addChunk(out, "IHDR", header.data, header.size);
-	ucvector_cleanup(&header);
-
-	return error;
-}
-
-static unsigned addChunk_PLTE(ucvector *out, const LodePNGColorMode *info) {
-	unsigned error = 0;
-	size_t i;
-	ucvector PLTE;
-	ucvector_init(&PLTE);
-	for (i = 0; i != info->palettesize * 4; ++i) {
-		/*add all channels except alpha channel*/
-		if (i % 4 != 3)
-			ucvector_push_back(&PLTE, info->palette[i]);
-	}
-	error = addChunk(out, "PLTE", PLTE.data, PLTE.size);
-	ucvector_cleanup(&PLTE);
-
-	return error;
-}
-
-static unsigned addChunk_tRNS(ucvector *out, const LodePNGColorMode *info) {
-	unsigned error = 0;
-	size_t i;
-	ucvector tRNS;
-	ucvector_init(&tRNS);
-	if (info->colortype == LCT_PALETTE) {
-		size_t amount = info->palettesize;
-		/*the tail of palette values that all have 255 as alpha, does not have to be encoded*/
-		for (i = info->palettesize; i != 0; --i) {
-			if (info->palette[4 * (i - 1) + 3] == 255)
-				--amount;
-			else
-				break;
-		}
-		/*add only alpha channel*/
-		for (i = 0; i != amount; ++i)
-			ucvector_push_back(&tRNS, info->palette[4 * i + 3]);
-	} else if (info->colortype == LCT_GREY) {
-		if (info->key_defined) {
-			ucvector_push_back(&tRNS, (uint8_t)(info->key_r >> 8));
-			ucvector_push_back(&tRNS, (uint8_t)(info->key_r & 255));
-		}
-	} else if (info->colortype == LCT_RGB) {
-		if (info->key_defined) {
-			ucvector_push_back(&tRNS, (uint8_t)(info->key_r >> 8));
-			ucvector_push_back(&tRNS, (uint8_t)(info->key_r & 255));
-			ucvector_push_back(&tRNS, (uint8_t)(info->key_g >> 8));
-			ucvector_push_back(&tRNS, (uint8_t)(info->key_g & 255));
-			ucvector_push_back(&tRNS, (uint8_t)(info->key_b >> 8));
-			ucvector_push_back(&tRNS, (uint8_t)(info->key_b & 255));
-		}
-	}
-
-	error = addChunk(out, "tRNS", tRNS.data, tRNS.size);
-	ucvector_cleanup(&tRNS);
-
-	return error;
-}
-
-static unsigned
-addChunk_IDAT(ucvector *out, const uint8_t *data, size_t datasize, LodePNGCompressSettings *zlibsettings) {
-	ucvector zlibdata;
-	unsigned error = 0;
-
-	/*compress with the Zlib compressor*/
-	ucvector_init(&zlibdata);
-	error = zlib_compress(&zlibdata.data, &zlibdata.size, data, datasize, zlibsettings);
-	if (!error)
-		error = addChunk(out, "IDAT", zlibdata.data, zlibdata.size);
-	ucvector_cleanup(&zlibdata);
-
-	return error;
-}
-
-static unsigned addChunk_IEND(ucvector *out) {
-	unsigned error = 0;
-	error          = addChunk(out, "IEND", 0, 0);
-	return error;
-}
-
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-
-static unsigned addChunk_tEXt(ucvector *out, const char *keyword, const char *textstring) {
-	unsigned error = 0;
-	size_t i;
-	ucvector text;
-	ucvector_init(&text);
-	for (i = 0; keyword[i] != 0; ++i)
-		ucvector_push_back(&text, (uint8_t)keyword[i]);
-	if (i < 1 || i > 79)
-		return 89;                /*error: invalid keyword size*/
-	ucvector_push_back(&text, 0); /*0 termination char*/
-	for (i = 0; textstring[i] != 0; ++i)
-		ucvector_push_back(&text, (uint8_t)textstring[i]);
-	error = addChunk(out, "tEXt", text.data, text.size);
-	ucvector_cleanup(&text);
-
-	return error;
-}
-
-static unsigned
-addChunk_zTXt(ucvector *out, const char *keyword, const char *textstring, LodePNGCompressSettings *zlibsettings) {
-	unsigned error = 0;
-	ucvector data, compressed;
-	size_t i, textsize = strlen(textstring);
-
-	ucvector_init(&data);
-	ucvector_init(&compressed);
-	for (i = 0; keyword[i] != 0; ++i)
-		ucvector_push_back(&data, (uint8_t)keyword[i]);
-	if (i < 1 || i > 79)
-		return 89;                /*error: invalid keyword size*/
-	ucvector_push_back(&data, 0); /*0 termination char*/
-	ucvector_push_back(&data, 0); /*compression method: 0*/
-
-	error = zlib_compress(&compressed.data, &compressed.size, (uint8_t *)textstring, textsize, zlibsettings);
-	if (!error) {
-		for (i = 0; i != compressed.size; ++i)
-			ucvector_push_back(&data, compressed.data[i]);
-		error = addChunk(out, "zTXt", data.data, data.size);
-	}
-
-	ucvector_cleanup(&compressed);
-	ucvector_cleanup(&data);
-	return error;
-}
-
-static unsigned addChunk_iTXt(
-	ucvector *out, unsigned compressed, const char *keyword, const char *langtag, const char *transkey,
-	const char *textstring, LodePNGCompressSettings *zlibsettings) {
-	unsigned error = 0;
-	ucvector data;
-	size_t i, textsize = strlen(textstring);
-
-	ucvector_init(&data);
-
-	for (i = 0; keyword[i] != 0; ++i)
-		ucvector_push_back(&data, (uint8_t)keyword[i]);
-	if (i < 1 || i > 79)
-		return 89;                                 /*error: invalid keyword size*/
-	ucvector_push_back(&data, 0);                  /*null termination char*/
-	ucvector_push_back(&data, compressed ? 1 : 0); /*compression flag*/
-	ucvector_push_back(&data, 0);                  /*compression method*/
-	for (i = 0; langtag[i] != 0; ++i)
-		ucvector_push_back(&data, (uint8_t)langtag[i]);
-	ucvector_push_back(&data, 0); /*null termination char*/
-	for (i = 0; transkey[i] != 0; ++i)
-		ucvector_push_back(&data, (uint8_t)transkey[i]);
-	ucvector_push_back(&data, 0); /*null termination char*/
-
-	if (compressed) {
-		ucvector compressed_data;
-		ucvector_init(&compressed_data);
-		error = zlib_compress(
-			&compressed_data.data, &compressed_data.size, (uint8_t *)textstring, textsize, zlibsettings);
-		if (!error) {
-			for (i = 0; i != compressed_data.size; ++i)
-				ucvector_push_back(&data, compressed_data.data[i]);
-		}
-		ucvector_cleanup(&compressed_data);
-	} else /*not compressed*/
-	{
-		for (i = 0; textstring[i] != 0; ++i)
-			ucvector_push_back(&data, (uint8_t)textstring[i]);
-	}
-
-	if (!error)
-		error = addChunk(out, "iTXt", data.data, data.size);
-	ucvector_cleanup(&data);
-	return error;
-}
-
-static unsigned addChunk_bKGD(ucvector *out, const LodePNGInfo *info) {
-	unsigned error = 0;
-	ucvector bKGD;
-	ucvector_init(&bKGD);
-	if (info->color.colortype == LCT_GREY || info->color.colortype == LCT_GREY_ALPHA) {
-		ucvector_push_back(&bKGD, (uint8_t)(info->background_r >> 8));
-		ucvector_push_back(&bKGD, (uint8_t)(info->background_r & 255));
-	} else if (info->color.colortype == LCT_RGB || info->color.colortype == LCT_RGBA) {
-		ucvector_push_back(&bKGD, (uint8_t)(info->background_r >> 8));
-		ucvector_push_back(&bKGD, (uint8_t)(info->background_r & 255));
-		ucvector_push_back(&bKGD, (uint8_t)(info->background_g >> 8));
-		ucvector_push_back(&bKGD, (uint8_t)(info->background_g & 255));
-		ucvector_push_back(&bKGD, (uint8_t)(info->background_b >> 8));
-		ucvector_push_back(&bKGD, (uint8_t)(info->background_b & 255));
-	} else if (info->color.colortype == LCT_PALETTE) {
-		ucvector_push_back(&bKGD, (uint8_t)(info->background_r & 255)); /*palette index*/
-	}
-
-	error = addChunk(out, "bKGD", bKGD.data, bKGD.size);
-	ucvector_cleanup(&bKGD);
-
-	return error;
-}
-
-static unsigned addChunk_tIME(ucvector *out, const LodePNGTime *time) {
-	unsigned error      = 0;
-	uint8_t *data = (uint8_t *)lodepng_malloc(7);
-	if (!data)
-		return 83; /*alloc fail*/
-	data[0] = (uint8_t)(time->year >> 8);
-	data[1] = (uint8_t)(time->year & 255);
-	data[2] = (uint8_t)time->month;
-	data[3] = (uint8_t)time->day;
-	data[4] = (uint8_t)time->hour;
-	data[5] = (uint8_t)time->minute;
-	data[6] = (uint8_t)time->second;
-	error   = addChunk(out, "tIME", data, 7);
-	lodepng_free(data);
-	return error;
-}
-
-static unsigned addChunk_pHYs(ucvector *out, const LodePNGInfo *info) {
-	unsigned error = 0;
-	ucvector data;
-	ucvector_init(&data);
-
-	lodepng_add32bitInt(&data, info->phys_x);
-	lodepng_add32bitInt(&data, info->phys_y);
-	ucvector_push_back(&data, info->phys_unit);
-
-	error = addChunk(out, "pHYs", data.data, data.size);
-	ucvector_cleanup(&data);
-
-	return error;
-}
-
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-
-static void filterScanline(
-	uint8_t *out, const uint8_t *scanline, const uint8_t *prevline, size_t length, size_t bytewidth,
-	uint8_t filterType) {
-	size_t i;
-	switch (filterType) {
-	case 0: /*None*/
-		for (i = 0; i != length; ++i)
-			out[i] = scanline[i];
-		break;
-	case 1: /*Sub*/
-		for (i = 0; i != bytewidth; ++i)
-			out[i] = scanline[i];
-		for (i = bytewidth; i < length; ++i)
-			out[i] = scanline[i] - scanline[i - bytewidth];
-		break;
-	case 2: /*Up*/
-		if (prevline) {
-			for (i = 0; i != length; ++i)
-				out[i] = scanline[i] - prevline[i];
-		} else {
-			for (i = 0; i != length; ++i)
-				out[i] = scanline[i];
-		}
-		break;
-	case 3: /*Average*/
-		if (prevline) {
-			for (i = 0; i != bytewidth; ++i)
-				out[i] = scanline[i] - (prevline[i] >> 1);
-			for (i = bytewidth; i < length; ++i)
-				out[i] = scanline[i] - ((scanline[i - bytewidth] + prevline[i]) >> 1);
-		} else {
-			for (i = 0; i != bytewidth; ++i)
-				out[i] = scanline[i];
-			for (i = bytewidth; i < length; ++i)
-				out[i] = scanline[i] - (scanline[i - bytewidth] >> 1);
-		}
-		break;
-	case 4: /*Paeth*/
-		if (prevline) {
-			/*paethPredictor(0, prevline[i], 0) is always prevline[i]*/
-			for (i = 0; i != bytewidth; ++i)
-				out[i] = (scanline[i] - prevline[i]);
-			for (i = bytewidth; i < length; ++i) {
-				out[i] = (scanline[i] - paethPredictor(scanline[i - bytewidth], prevline[i], prevline[i - bytewidth]));
-			}
-		} else {
-			for (i = 0; i != bytewidth; ++i)
-				out[i] = scanline[i];
-			/*paethPredictor(scanline[i - bytewidth], 0, 0) is always scanline[i - bytewidth]*/
-			for (i = bytewidth; i < length; ++i)
-				out[i] = (scanline[i] - scanline[i - bytewidth]);
-		}
-		break;
-	default:
-		return; /*unexisting filter type given*/
-	}
-}
-
-/* log2 approximation. A slight bit faster than std::log. */
-static float flog2(float f) {
-	float result = 0;
-	while (f > 32) {
-		result += 4;
-		f /= 16;
-	}
-	while (f > 2) {
-		++result;
-		f /= 2;
-	}
-	return result + 1.442695f * (f * f * f / 3 - 3 * f * f / 2 + 3 * f - 1.83333f);
-}
-
-static unsigned filter(
-	uint8_t *out, const uint8_t *in, unsigned w, unsigned h, const LodePNGColorMode *info,
-	const LodePNGEncoderSettings *settings) {
-	/*
-	For PNG filter method 0
-	out must be a buffer with as size: h + (w * h * bpp + 7) / 8, because there are
-	the scanlines with 1 extra byte per scanline
-	*/
-
-	unsigned bpp = lodepng_get_bpp(info);
-	/*the width of a scanline in bytes, not including the filter type*/
-	size_t linebytes = (w * bpp + 7) / 8;
-	/*bytewidth is used for filtering, is 1 when bpp < 8, number of bytes per pixel otherwise*/
-	size_t bytewidth              = (bpp + 7) / 8;
-	const uint8_t *prevline = 0;
-	unsigned x, y;
-	unsigned error                 = 0;
-	LodePNGFilterStrategy strategy = settings->filter_strategy;
-
-	/*
-	There is a heuristic called the minimum sum of absolute differences heuristic, suggested by the PNG standard:
-	 *  If the image type is Palette, or the bit depth is smaller than 8, then do not filter the image (i.e.
-	    use fixed filtering, with the filter None).
-	 * (The other case) If the image type is Grayscale or RGB (with or without Alpha), and the bit depth is
-	   not smaller than 8, then use adaptive filtering heuristic as follows: independently for each row, apply
-	   all five filters and select the filter that produces the smallest sum of absolute values per row.
-	This heuristic is used if filter strategy is LFS_MINSUM and filter_palette_zero is true.
-
-	If filter_palette_zero is true and filter_strategy is not LFS_MINSUM, the above heuristic is followed,
-	but for "the other case", whatever strategy filter_strategy is set to instead of the minimum sum
-	heuristic is used.
-	*/
-	if (settings->filter_palette_zero && (info->colortype == LCT_PALETTE || info->bitdepth < 8))
-		strategy = LFS_ZERO;
-
-	if (bpp == 0)
-		return 31; /*error: invalid color type*/
-
-	if (strategy == LFS_ZERO) {
-		for (y = 0; y != h; ++y) {
-			size_t outindex = (1 + linebytes) * y; /*the extra filterbyte added to each row*/
-			size_t inindex  = linebytes * y;
-			out[outindex]   = 0; /*filter type byte*/
-			filterScanline(&out[outindex + 1], &in[inindex], prevline, linebytes, bytewidth, 0);
-			prevline = &in[inindex];
-		}
-	} else if (strategy == LFS_MINSUM) {
-		/*adaptive filtering*/
-		size_t sum[5];
-		uint8_t *attempt[5]; /*five filtering attempts, one for each filter type*/
-		size_t smallest = 0;
-		uint8_t type, bestType = 0;
-
-		for (type = 0; type != 5; ++type) {
-			attempt[type] = (uint8_t *)lodepng_malloc(linebytes);
-			if (!attempt[type])
-				return 83; /*alloc fail*/
-		}
-
-		if (!error) {
-			for (y = 0; y != h; ++y) {
-				/*try the 5 filter types*/
-				for (type = 0; type != 5; ++type) {
-					filterScanline(attempt[type], &in[y * linebytes], prevline, linebytes, bytewidth, type);
-
-					/*calculate the sum of the result*/
-					sum[type] = 0;
-					if (type == 0) {
-						for (x = 0; x != linebytes; ++x)
-							sum[type] += (uint8_t)(attempt[type][x]);
-					} else {
-						for (x = 0; x != linebytes; ++x) {
-							/*For differences, each byte should be treated as signed, values above 127 are negative
-							(converted to signed char). Filtertype 0 isn't a difference though, so use unsigned there.
-							This means filtertype 0 is almost never chosen, but that is justified.*/
-							uint8_t s = attempt[type][x];
-							sum[type] += s < 128 ? s : (255U - s);
-						}
-					}
-
-					/*check if this is smallest sum (or if type == 0 it's the first case so always store the values)*/
-					if (type == 0 || sum[type] < smallest) {
-						bestType = type;
-						smallest = sum[type];
-					}
-				}
-
-				prevline = &in[y * linebytes];
-
-				/*now fill the out values*/
-				out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/
-				for (x = 0; x != linebytes; ++x)
-					out[y * (linebytes + 1) + 1 + x] = attempt[bestType][x];
-			}
-		}
-
-		for (type = 0; type != 5; ++type)
-			lodepng_free(attempt[type]);
-	} else if (strategy == LFS_ENTROPY) {
-		float sum[5];
-		uint8_t *attempt[5]; /*five filtering attempts, one for each filter type*/
-		float smallest = 0;
-		unsigned type, bestType = 0;
-		unsigned count[256];
-
-		for (type = 0; type != 5; ++type) {
-			attempt[type] = (uint8_t *)lodepng_malloc(linebytes);
-			if (!attempt[type])
-				return 83; /*alloc fail*/
-		}
-
-		for (y = 0; y != h; ++y) {
-			/*try the 5 filter types*/
-			for (type = 0; type != 5; ++type) {
-				filterScanline(attempt[type], &in[y * linebytes], prevline, linebytes, bytewidth, type);
-				for (x = 0; x != 256; ++x)
-					count[x] = 0;
-				for (x = 0; x != linebytes; ++x)
-					++count[attempt[type][x]];
-				++count[type]; /*the filter type itself is part of the scanline*/
-				sum[type] = 0;
-				for (x = 0; x != 256; ++x) {
-					float p = count[x] / (float)(linebytes + 1);
-					sum[type] += count[x] == 0 ? 0 : flog2(1 / p) * p;
-				}
-				/*check if this is smallest sum (or if type == 0 it's the first case so always store the values)*/
-				if (type == 0 || sum[type] < smallest) {
-					bestType = type;
-					smallest = sum[type];
-				}
-			}
-
-			prevline = &in[y * linebytes];
-
-			/*now fill the out values*/
-			out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/
-			for (x = 0; x != linebytes; ++x)
-				out[y * (linebytes + 1) + 1 + x] = attempt[bestType][x];
-		}
-
-		for (type = 0; type != 5; ++type)
-			lodepng_free(attempt[type]);
-	} else if (strategy == LFS_PREDEFINED) {
-		for (y = 0; y != h; ++y) {
-			size_t outindex    = (1 + linebytes) * y; /*the extra filterbyte added to each row*/
-			size_t inindex     = linebytes * y;
-			uint8_t type = settings->predefined_filters[y];
-			out[outindex]      = type; /*filter type byte*/
-			filterScanline(&out[outindex + 1], &in[inindex], prevline, linebytes, bytewidth, type);
-			prevline = &in[inindex];
-		}
-	} else if (strategy == LFS_BRUTE_FORCE) {
-		/*brute force filter chooser.
-		deflate the scanline after every filter attempt to see which one deflates best.
-		This is very slow and gives only slightly smaller, sometimes even larger, result*/
-		size_t size[5];
-		uint8_t *attempt[5]; /*five filtering attempts, one for each filter type*/
-		size_t smallest = 0;
-		unsigned type = 0, bestType = 0;
-		uint8_t *dummy;
-		LodePNGCompressSettings zlibsettings = settings->zlibsettings;
-		/*use fixed tree on the attempts so that the tree is not adapted to the filtertype on purpose,
-		to simulate the true case where the tree is the same for the whole image. Sometimes it gives
-		better result with dynamic tree anyway. Using the fixed tree sometimes gives worse, but in rare
-		cases better compression. It does make this a bit less slow, so it's worth doing this.*/
-		zlibsettings.btype = 1;
-		/*a custom encoder likely doesn't read the btype setting and is optimized for complete PNG
-		images only, so disable it*/
-		zlibsettings.custom_zlib    = 0;
-		zlibsettings.custom_deflate = 0;
-		for (type = 0; type != 5; ++type) {
-			attempt[type] = (uint8_t *)lodepng_malloc(linebytes);
-			if (!attempt[type])
-				return 83; /*alloc fail*/
-		}
-		for (y = 0; y != h; ++y) /*try the 5 filter types*/
-		{
-			for (type = 0; type != 5; ++type) {
-				unsigned testsize = linebytes;
-				/*if(testsize > 8) testsize /= 8;*/ /*it already works good enough by testing a part of the row*/
-
-				filterScanline(attempt[type], &in[y * linebytes], prevline, linebytes, bytewidth, type);
-				size[type] = 0;
-				dummy      = 0;
-				zlib_compress(&dummy, &size[type], attempt[type], testsize, &zlibsettings);
-				lodepng_free(dummy);
-				/*check if this is smallest size (or if type == 0 it's the first case so always store the values)*/
-				if (type == 0 || size[type] < smallest) {
-					bestType = type;
-					smallest = size[type];
-				}
-			}
-			prevline                 = &in[y * linebytes];
-			out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/
-			for (x = 0; x != linebytes; ++x)
-				out[y * (linebytes + 1) + 1 + x] = attempt[bestType][x];
-		}
-		for (type = 0; type != 5; ++type)
-			lodepng_free(attempt[type]);
-	} else
-		return 88; /* unknown filter strategy */
-
-	return error;
-}
-
-static void
-addPaddingBits(uint8_t *out, const uint8_t *in, size_t olinebits, size_t ilinebits, unsigned h) {
-	/*The opposite of the removePaddingBits function
-	olinebits must be >= ilinebits*/
-	unsigned y;
-	size_t diff = olinebits - ilinebits;
-	size_t obp = 0, ibp = 0; /*bit pointers*/
-	for (y = 0; y != h; ++y) {
-		size_t x;
-		for (x = 0; x < ilinebits; ++x) {
-			uint8_t bit = readBitFromReversedStream(&ibp, in);
-			setBitOfReversedStream(&obp, out, bit);
-		}
-		/*obp += diff; --> no, fill in some value in the padding bits too, to avoid
-		"Use of uninitialised value of size ###" warning from valgrind*/
-		for (x = 0; x != diff; ++x)
-			setBitOfReversedStream(&obp, out, 0);
-	}
-}
-
-/*
-in: non-interlaced image with size w*h
-out: the same pixels, but re-ordered according to PNG's Adam7 interlacing, with
- no padding bits between scanlines, but between reduced images so that each
- reduced image starts at a byte.
-bpp: bits per pixel
-there are no padding bits, not between scanlines, not between reduced images
-in has the following size in bits: w * h * bpp.
-out is possibly bigger due to padding bits between reduced images
-NOTE: comments about padding bits are only relevant if bpp < 8
-*/
-static void Adam7_interlace(uint8_t *out, const uint8_t *in, unsigned w, unsigned h, unsigned bpp) {
-	unsigned passw[7], passh[7];
-	size_t filter_passstart[8], padded_passstart[8], passstart[8];
-	unsigned i;
-
-	Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp);
-
-	if (bpp >= 8) {
-		for (i = 0; i != 7; ++i) {
-			unsigned x, y, b;
-			size_t bytewidth = bpp / 8;
-			for (y = 0; y < passh[i]; ++y)
-				for (x = 0; x < passw[i]; ++x) {
-					size_t pixelinstart =
-						((ADAM7_IY[i] + y * ADAM7_DY[i]) * w + ADAM7_IX[i] + x * ADAM7_DX[i]) * bytewidth;
-					size_t pixeloutstart = passstart[i] + (y * passw[i] + x) * bytewidth;
-					for (b = 0; b < bytewidth; ++b) {
-						out[pixeloutstart + b] = in[pixelinstart + b];
-					}
-				}
-		}
-	} else /*bpp < 8: Adam7 with pixels < 8 bit is a bit trickier: with bit pointers*/
-	{
-		for (i = 0; i != 7; ++i) {
-			unsigned x, y, b;
-			unsigned ilinebits = bpp * passw[i];
-			unsigned olinebits = bpp * w;
-			size_t obp, ibp; /*bit pointers (for out and in buffer)*/
-			for (y = 0; y < passh[i]; ++y)
-				for (x = 0; x < passw[i]; ++x) {
-					ibp = (ADAM7_IY[i] + y * ADAM7_DY[i]) * olinebits + (ADAM7_IX[i] + x * ADAM7_DX[i]) * bpp;
-					obp = (8 * passstart[i]) + (y * ilinebits + x * bpp);
-					for (b = 0; b < bpp; ++b) {
-						uint8_t bit = readBitFromReversedStream(&ibp, in);
-						setBitOfReversedStream(&obp, out, bit);
-					}
-				}
-		}
-	}
-}
-
-/*out must be buffer big enough to contain uncompressed IDAT chunk data, and in must contain the full image.
-return value is error**/
-static unsigned preProcessScanlines(
-	uint8_t **out, size_t *outsize, const uint8_t *in, unsigned w, unsigned h, const LodePNGInfo *info_png,
-	const LodePNGEncoderSettings *settings) {
-	/*
-	This function converts the pure 2D image with the PNG's colortype, into filtered-padded-interlaced data. Steps:
-	*) if no Adam7: 1) add padding bits (= posible extra bits per scanline if bpp < 8) 2) filter
-	*) if adam7: 1) Adam7_interlace 2) 7x add padding bits 3) 7x filter
-	*/
-	unsigned bpp   = lodepng_get_bpp(&info_png->color);
-	unsigned error = 0;
-
-	if (info_png->interlace_method == 0) {
-		*outsize = h + (h * ((w * bpp + 7) / 8)); /*image size plus an extra byte per scanline + possible padding bits*/
-		*out     = (uint8_t *)lodepng_malloc(*outsize);
-		if (!(*out) && (*outsize))
-			error = 83; /*alloc fail*/
-
-		if (!error) {
-			/*non multiple of 8 bits per scanline, padding bits needed per scanline*/
-			if (bpp < 8 && w * bpp != ((w * bpp + 7) / 8) * 8) {
-				uint8_t *padded = (uint8_t *)lodepng_malloc(h * ((w * bpp + 7) / 8));
-				if (!padded)
-					error = 83; /*alloc fail*/
-				if (!error) {
-					addPaddingBits(padded, in, ((w * bpp + 7) / 8) * 8, w * bpp, h);
-					error = filter(*out, padded, w, h, &info_png->color, settings);
-				}
-				lodepng_free(padded);
-			} else {
-				/*we can immediately filter into the out buffer, no other steps needed*/
-				error = filter(*out, in, w, h, &info_png->color, settings);
-			}
-		}
-	} else /*interlace_method is 1 (Adam7)*/
-	{
-		unsigned passw[7], passh[7];
-		size_t filter_passstart[8], padded_passstart[8], passstart[8];
-		uint8_t *adam7;
-
-		Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp);
-
-		*outsize = filter_passstart[7]; /*image size plus an extra byte per scanline + possible padding bits*/
-		*out     = (uint8_t *)lodepng_malloc(*outsize);
-		if (!(*out))
-			error = 83; /*alloc fail*/
-
-		adam7 = (uint8_t *)lodepng_malloc(passstart[7]);
-		if (!adam7 && passstart[7])
-			error = 83; /*alloc fail*/
-
-		if (!error) {
-			unsigned i;
-
-			Adam7_interlace(adam7, in, w, h, bpp);
-			for (i = 0; i != 7; ++i) {
-				if (bpp < 8) {
-					uint8_t *padded =
-						(uint8_t *)lodepng_malloc(padded_passstart[i + 1] - padded_passstart[i]);
-					if (!padded)
-						ERROR_BREAK(83); /*alloc fail*/
-					addPaddingBits(
-						padded, &adam7[passstart[i]], ((passw[i] * bpp + 7) / 8) * 8, passw[i] * bpp, passh[i]);
-					error =
-						filter(&(*out)[filter_passstart[i]], padded, passw[i], passh[i], &info_png->color, settings);
-					lodepng_free(padded);
-				} else {
-					error = filter(
-						&(*out)[filter_passstart[i]],
-						&adam7[padded_passstart[i]],
-						passw[i],
-						passh[i],
-						&info_png->color,
-						settings);
-				}
-
-				if (error)
-					break;
-			}
-		}
-
-		lodepng_free(adam7);
-	}
-
-	return error;
-}
-
-/*
-palette must have 4 * palettesize bytes allocated, and given in format RGBARGBARGBARGBA...
-returns 0 if the palette is opaque,
-returns 1 if the palette has a single color with alpha 0 ==> color key
-returns 2 if the palette is semi-translucent.
-*/
-static unsigned getPaletteTranslucency(const uint8_t *palette, size_t palettesize) {
-	size_t i;
-	unsigned key = 0;
-	unsigned r = 0, g = 0, b = 0; /*the value of the color with alpha 0, so long as color keying is possible*/
-	for (i = 0; i != palettesize; ++i) {
-		if (!key && palette[4 * i + 3] == 0) {
-			r   = palette[4 * i + 0];
-			g   = palette[4 * i + 1];
-			b   = palette[4 * i + 2];
-			key = 1;
-			i   = (size_t)(-1); /*restart from beginning, to detect earlier opaque colors with key's value*/
-		} else if (palette[4 * i + 3] != 255)
-			return 2;
-		/*when key, no opaque RGB may have key's RGB*/
-		else if (key && r == palette[i * 4 + 0] && g == palette[i * 4 + 1] && b == palette[i * 4 + 2])
-			return 2;
-	}
-	return key;
-}
-
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-static unsigned addUnknownChunks(ucvector *out, uint8_t *data, size_t datasize) {
-	uint8_t *inchunk = data;
-	while ((size_t)(inchunk - data) < datasize) {
-		CERROR_TRY_RETURN(lodepng_chunk_append(&out->data, &out->size, inchunk));
-		out->allocsize = out->size; /*fix the allocsize again*/
-		inchunk        = lodepng_chunk_next(inchunk);
-	}
-	return 0;
-}
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-
-unsigned lodepng_encode(
-	uint8_t **out, size_t *outsize, const uint8_t *image, unsigned w, unsigned h, LodePNGState *state) {
-	LodePNGInfo info;
-	ucvector outv;
-	uint8_t *data = 0; /*uncompressed version of the IDAT chunk data*/
-	size_t datasize     = 0;
-
-	/*provide some proper output values if error will happen*/
-	*out         = 0;
-	*outsize     = 0;
-	state->error = 0;
-
-	lodepng_info_init(&info);
-	lodepng_info_copy(&info, &state->info_png);
-
-	if ((info.color.colortype == LCT_PALETTE || state->encoder.force_palette) &&
-	    (info.color.palettesize == 0 || info.color.palettesize > 256)) {
-		state->error = 68; /*invalid palette size, it is only allowed to be 1-256*/
-		return state->error;
-	}
-
-	if (state->encoder.auto_convert) {
-		state->error = lodepng_auto_choose_color(&info.color, image, w, h, &state->info_raw);
-	}
-	if (state->error)
-		return state->error;
-
-	if (state->encoder.zlibsettings.btype > 2) {
-		CERROR_RETURN_ERROR(state->error, 61); /*error: unexisting btype*/
-	}
-	if (state->info_png.interlace_method > 1) {
-		CERROR_RETURN_ERROR(state->error, 71); /*error: unexisting interlace mode*/
-	}
-
-	state->error = checkColorValidity(info.color.colortype, info.color.bitdepth);
-	if (state->error)
-		return state->error; /*error: unexisting color type given*/
-	state->error = checkColorValidity(state->info_raw.colortype, state->info_raw.bitdepth);
-	if (state->error)
-		return state->error; /*error: unexisting color type given*/
-
-	if (!lodepng_color_mode_equal(&state->info_raw, &info.color)) {
-		uint8_t *converted;
-		size_t size = (w * h * (size_t)lodepng_get_bpp(&info.color) + 7) / 8;
-
-		converted = (uint8_t *)lodepng_malloc(size);
-		if (!converted && size)
-			state->error = 83; /*alloc fail*/
-		if (!state->error) {
-			state->error = lodepng_convert(converted, image, &info.color, &state->info_raw, w, h);
-		}
-		if (!state->error)
-			preProcessScanlines(&data, &datasize, converted, w, h, &info, &state->encoder);
-		lodepng_free(converted);
-	} else
-		preProcessScanlines(&data, &datasize, image, w, h, &info, &state->encoder);
-
-	ucvector_init(&outv);
-	while (!state->error) /*while only executed once, to break on error*/
-	{
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-		size_t i;
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-		/*write signature and chunks*/
-		writeSignature(&outv);
-		/*IHDR*/
-		addChunk_IHDR(&outv, w, h, info.color.colortype, info.color.bitdepth, info.interlace_method);
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-		/*unknown chunks between IHDR and PLTE*/
-		if (info.unknown_chunks_data[0]) {
-			state->error = addUnknownChunks(&outv, info.unknown_chunks_data[0], info.unknown_chunks_size[0]);
-			if (state->error)
-				break;
-		}
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-		/*PLTE*/
-		if (info.color.colortype == LCT_PALETTE) {
-			addChunk_PLTE(&outv, &info.color);
-		}
-		if (state->encoder.force_palette && (info.color.colortype == LCT_RGB || info.color.colortype == LCT_RGBA)) {
-			addChunk_PLTE(&outv, &info.color);
-		}
-		/*tRNS*/
-		if (info.color.colortype == LCT_PALETTE &&
-		    getPaletteTranslucency(info.color.palette, info.color.palettesize) != 0) {
-			addChunk_tRNS(&outv, &info.color);
-		}
-		if ((info.color.colortype == LCT_GREY || info.color.colortype == LCT_RGB) && info.color.key_defined) {
-			addChunk_tRNS(&outv, &info.color);
-		}
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-		/*bKGD (must come between PLTE and the IDAt chunks*/
-		if (info.background_defined)
-			addChunk_bKGD(&outv, &info);
-		/*pHYs (must come before the IDAT chunks)*/
-		if (info.phys_defined)
-			addChunk_pHYs(&outv, &info);
-
-		/*unknown chunks between PLTE and IDAT*/
-		if (info.unknown_chunks_data[1]) {
-			state->error = addUnknownChunks(&outv, info.unknown_chunks_data[1], info.unknown_chunks_size[1]);
-			if (state->error)
-				break;
-		}
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-		/*IDAT (multiple IDAT chunks must be consecutive)*/
-		state->error = addChunk_IDAT(&outv, data, datasize, &state->encoder.zlibsettings);
-		if (state->error)
-			break;
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-		/*tIME*/
-		if (info.time_defined)
-			addChunk_tIME(&outv, &info.time);
-		/*tEXt and/or zTXt*/
-		for (i = 0; i != info.text_num; ++i) {
-			if (strlen(info.text_keys[i]) > 79) {
-				state->error = 66; /*text chunk too large*/
-				break;
-			}
-			if (strlen(info.text_keys[i]) < 1) {
-				state->error = 67; /*text chunk too small*/
-				break;
-			}
-			if (state->encoder.text_compression) {
-				addChunk_zTXt(&outv, info.text_keys[i], info.text_strings[i], &state->encoder.zlibsettings);
-			} else {
-				addChunk_tEXt(&outv, info.text_keys[i], info.text_strings[i]);
-			}
-		}
-		/*LodePNG version id in text chunk*/
-		if (state->encoder.add_id) {
-			unsigned alread_added_id_text = 0;
-			for (i = 0; i != info.text_num; ++i) {
-				if (!strcmp(info.text_keys[i], "LodePNG")) {
-					alread_added_id_text = 1;
-					break;
-				}
-			}
-			if (alread_added_id_text == 0) {
-				addChunk_tEXt(&outv, "LodePNG", LODEPNG_VERSION_STRING); /*it's shorter as tEXt than as zTXt chunk*/
-			}
-		}
-		/*iTXt*/
-		for (i = 0; i != info.itext_num; ++i) {
-			if (strlen(info.itext_keys[i]) > 79) {
-				state->error = 66; /*text chunk too large*/
-				break;
-			}
-			if (strlen(info.itext_keys[i]) < 1) {
-				state->error = 67; /*text chunk too small*/
-				break;
-			}
-			addChunk_iTXt(
-				&outv,
-				state->encoder.text_compression,
-				info.itext_keys[i],
-				info.itext_langtags[i],
-				info.itext_transkeys[i],
-				info.itext_strings[i],
-				&state->encoder.zlibsettings);
-		}
-
-		/*unknown chunks between IDAT and IEND*/
-		if (info.unknown_chunks_data[2]) {
-			state->error = addUnknownChunks(&outv, info.unknown_chunks_data[2], info.unknown_chunks_size[2]);
-			if (state->error)
-				break;
-		}
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-		addChunk_IEND(&outv);
-
-		break; /*this isn't really a while loop; no error happened so break out now!*/
-	}
-
-	lodepng_info_cleanup(&info);
-	lodepng_free(data);
-	/*instead of cleaning the vector up, give it to the output*/
-	*out     = outv.data;
-	*outsize = outv.size;
-
-	return state->error;
-}
-
-unsigned lodepng_encode_memory(
-	uint8_t **out, size_t *outsize, const uint8_t *image, unsigned w, unsigned h,
-	LodePNGColorType colortype, unsigned bitdepth) {
-	unsigned error;
-	LodePNGState state;
-	lodepng_state_init(&state);
-	state.info_raw.colortype       = colortype;
-	state.info_raw.bitdepth        = bitdepth;
-	state.info_png.color.colortype = colortype;
-	state.info_png.color.bitdepth  = bitdepth;
-	lodepng_encode(out, outsize, image, w, h, &state);
-	error = state.error;
-	lodepng_state_cleanup(&state);
-	return error;
-}
-
-unsigned lodepng_encode32(uint8_t **out, size_t *outsize, const uint8_t *image, unsigned w, unsigned h) {
-	return lodepng_encode_memory(out, outsize, image, w, h, LCT_RGBA, 8);
-}
-
-unsigned lodepng_encode24(uint8_t **out, size_t *outsize, const uint8_t *image, unsigned w, unsigned h) {
-	return lodepng_encode_memory(out, outsize, image, w, h, LCT_RGB, 8);
-}
-
-#ifdef LODEPNG_COMPILE_DISK
-unsigned lodepng_encode_file(
-	const char *filename, const uint8_t *image, unsigned w, unsigned h, LodePNGColorType colortype,
-	unsigned bitdepth) {
-	uint8_t *buffer;
-	size_t buffersize;
-	unsigned error = lodepng_encode_memory(&buffer, &buffersize, image, w, h, colortype, bitdepth);
-	if (!error)
-		error = lodepng_save_file(buffer, buffersize, filename);
-	lodepng_free(buffer);
-	return error;
-}
-
-unsigned lodepng_encode32_file(const char *filename, const uint8_t *image, unsigned w, unsigned h) {
-	return lodepng_encode_file(filename, image, w, h, LCT_RGBA, 8);
-}
-
-unsigned lodepng_encode24_file(const char *filename, const uint8_t *image, unsigned w, unsigned h) {
-	return lodepng_encode_file(filename, image, w, h, LCT_RGB, 8);
-}
-#endif /*LODEPNG_COMPILE_DISK*/
-
-void lodepng_encoder_settings_init(LodePNGEncoderSettings *settings) {
-	lodepng_compress_settings_init(&settings->zlibsettings);
-	settings->filter_palette_zero = 1;
-	settings->filter_strategy     = LFS_MINSUM;
-	settings->auto_convert        = 1;
-	settings->force_palette       = 0;
-	settings->predefined_filters  = 0;
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-	settings->add_id           = 0;
-	settings->text_compression = 1;
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-}
-
-#endif /*LODEPNG_COMPILE_ENCODER*/
-#endif /*LODEPNG_COMPILE_PNG*/
-
-#ifdef LODEPNG_COMPILE_ERROR_TEXT
-/*
-This returns the description of a numerical error code in English. This is also
-the documentation of all the error codes.
-*/
-const char *lodepng_error_text(unsigned code) {
-	switch (code) {
-	case 0:
-		return "no error, everything went ok";
-	case 1:
-		return "nothing done yet"; /*the Encoder/Decoder has done nothing yet, error checking makes no sense yet*/
-	case 10:
-		return "end of input memory reached without huffman end code"; /*while huffman decoding*/
-	case 11:
-		return "error in code tree made it jump outside of huffman tree"; /*while huffman decoding*/
-	case 13:
-		return "problem while processing dynamic deflate block";
-	case 14:
-		return "problem while processing dynamic deflate block";
-	case 15:
-		return "problem while processing dynamic deflate block";
-	case 16:
-		return "unexisting code while processing dynamic deflate block";
-	case 17:
-		return "end of out buffer memory reached while inflating";
-	case 18:
-		return "invalid distance code while inflating";
-	case 19:
-		return "end of out buffer memory reached while inflating";
-	case 20:
-		return "invalid deflate block BTYPE encountered while decoding";
-	case 21:
-		return "NLEN is not ones complement of LEN in a deflate block";
-		/*end of out buffer memory reached while inflating:
-		This can happen if the inflated deflate data is longer than the amount of bytes required to fill up
-		all the pixels of the image, given the color depth and image dimensions. Something that doesn't
-		happen in a normal, well encoded, PNG image.*/
-	case 22:
-		return "end of out buffer memory reached while inflating";
-	case 23:
-		return "end of in buffer memory reached while inflating";
-	case 24:
-		return "invalid FCHECK in zlib header";
-	case 25:
-		return "invalid compression method in zlib header";
-	case 26:
-		return "FDICT encountered in zlib header while it's not used for PNG";
-	case 27:
-		return "PNG file is smaller than a PNG header";
-	/*Checks the magic file header, the first 8 bytes of the PNG file*/
-	case 28:
-		return "incorrect PNG signature, it's no PNG or corrupted";
-	case 29:
-		return "first chunk is not the header chunk";
-	case 30:
-		return "chunk length too large, chunk broken off at end of file";
-	case 31:
-		return "illegal PNG color type or bpp";
-	case 32:
-		return "illegal PNG compression method";
-	case 33:
-		return "illegal PNG filter method";
-	case 34:
-		return "illegal PNG interlace method";
-	case 35:
-		return "chunk length of a chunk is too large or the chunk too small";
-	case 36:
-		return "illegal PNG filter type encountered";
-	case 37:
-		return "illegal bit depth for this color type given";
-	case 38:
-		return "the palette is too big"; /*more than 256 colors*/
-	case 39:
-		return "more palette alpha values given in tRNS chunk than there are colors in the palette";
-	case 40:
-		return "tRNS chunk has wrong size for greyscale image";
-	case 41:
-		return "tRNS chunk has wrong size for RGB image";
-	case 42:
-		return "tRNS chunk appeared while it was not allowed for this color type";
-	case 43:
-		return "bKGD chunk has wrong size for palette image";
-	case 44:
-		return "bKGD chunk has wrong size for greyscale image";
-	case 45:
-		return "bKGD chunk has wrong size for RGB image";
-	case 48:
-		return "empty input buffer given to decoder. Maybe caused by non-existing file?";
-	case 49:
-		return "jumped past memory while generating dynamic huffman tree";
-	case 50:
-		return "jumped past memory while generating dynamic huffman tree";
-	case 51:
-		return "jumped past memory while inflating huffman block";
-	case 52:
-		return "jumped past memory while inflating";
-	case 53:
-		return "size of zlib data too small";
-	case 54:
-		return "repeat symbol in tree while there was no value symbol yet";
-	/*jumped past tree while generating huffman tree, this could be when the
-	tree will have more leaves than symbols after generating it out of the
-	given lenghts. They call this an oversubscribed dynamic bit lengths tree in zlib.*/
-	case 55:
-		return "jumped past tree while generating huffman tree";
-	case 56:
-		return "given output image colortype or bitdepth not supported for color conversion";
-	case 57:
-		return "invalid CRC encountered (checking CRC can be disabled)";
-	case 58:
-		return "invalid ADLER32 encountered (checking ADLER32 can be disabled)";
-	case 59:
-		return "requested color conversion not supported";
-	case 60:
-		return "invalid window size given in the settings of the encoder (must be 0-32768)";
-	case 61:
-		return "invalid BTYPE given in the settings of the encoder (only 0, 1 and 2 are allowed)";
-	/*LodePNG leaves the choice of RGB to greyscale conversion formula to the user.*/
-	case 62:
-		return "conversion from color to greyscale not supported";
-	case 63:
-		return "length of a chunk too long, max allowed for PNG is 2147483647 bytes per chunk"; /*(2^31-1)*/
-	/*this would result in the inability of a deflated block to ever contain an end code. It must be at least 1.*/
-	case 64:
-		return "the length of the END symbol 256 in the Huffman tree is 0";
-	case 66:
-		return "the length of a text chunk keyword given to the encoder is longer than the maximum of 79 bytes";
-	case 67:
-		return "the length of a text chunk keyword given to the encoder is smaller than the minimum of 1 byte";
-	case 68:
-		return "tried to encode a PLTE chunk with a palette that has less than 1 or more than 256 colors";
-	case 69:
-		return "unknown chunk type with 'critical' flag encountered by the decoder";
-	case 71:
-		return "unexisting interlace mode given to encoder (must be 0 or 1)";
-	case 72:
-		return "while decoding, unexisting compression method encountering in zTXt or iTXt chunk (it must be 0)";
-	case 73:
-		return "invalid tIME chunk size";
-	case 74:
-		return "invalid pHYs chunk size";
-	/*length could be wrong, or data chopped off*/
-	case 75:
-		return "no null termination char found while decoding text chunk";
-	case 76:
-		return "iTXt chunk too short to contain required bytes";
-	case 77:
-		return "integer overflow in buffer size";
-	case 78:
-		return "failed to open file for reading"; /*file doesn't exist or couldn't be opened for reading*/
-	case 79:
-		return "failed to open file for writing";
-	case 80:
-		return "tried creating a tree of 0 symbols";
-	case 81:
-		return "lazy matching at pos 0 is impossible";
-	case 82:
-		return "color conversion to palette requested while a color isn't in palette";
-	case 83:
-		return "memory allocation failed";
-	case 84:
-		return "given image too small to contain all pixels to be encoded";
-	case 86:
-		return "impossible offset in lz77 encoding (internal bug)";
-	case 87:
-		return "must provide custom zlib function pointer if LODEPNG_COMPILE_ZLIB is not defined";
-	case 88:
-		return "invalid filter strategy given for LodePNGEncoderSettings.filter_strategy";
-	case 89:
-		return "text chunk keyword too short or long: must have size 1-79";
-	/*the windowsize in the LodePNGCompressSettings. Requiring POT(==> & instead of %) makes encoding 12% faster.*/
-	case 90:
-		return "windowsize must be a power of two";
-	case 91:
-		return "invalid decompressed idat size";
-	case 92:
-		return "too many pixels, not supported";
-	case 93:
-		return "zero width or height is invalid";
-	case 94:
-		return "header chunk must have a size of 13 bytes";
-	}
-	return "unknown error code";
-}
-#endif /*LODEPNG_COMPILE_ERROR_TEXT*/
-
-/* ////////////////////////////////////////////////////////////////////////// */
-/* ////////////////////////////////////////////////////////////////////////// */
-/* // C++ Wrapper                                                          // */
-/* ////////////////////////////////////////////////////////////////////////// */
-/* ////////////////////////////////////////////////////////////////////////// */
-
-#ifdef LODEPNG_COMPILE_CPP
-namespace lodepng {
-
-#ifdef LODEPNG_COMPILE_DISK
-unsigned load_file(std::vector<uint8_t> &buffer, const std::string &filename) {
-	long size = lodepng_filesize(filename.c_str());
-	if (size < 0)
-		return 78;
-	buffer.resize((size_t)size);
-	return size == 0 ? 0 : lodepng_buffer_file(&buffer[0], (size_t)size, filename.c_str());
-}
-
-/*write given buffer to the file, overwriting the file, it doesn't append to it.*/
-unsigned save_file(const std::vector<uint8_t> &buffer, const std::string &filename) {
-	return lodepng_save_file(buffer.empty() ? 0 : &buffer[0], buffer.size(), filename.c_str());
-}
-#endif /* LODEPNG_COMPILE_DISK */
-
-#ifdef LODEPNG_COMPILE_ZLIB
-#ifdef LODEPNG_COMPILE_DECODER
-unsigned decompress(
-	std::vector<uint8_t> &out, const uint8_t *in, size_t insize,
-	const LodePNGDecompressSettings &settings) {
-	uint8_t *buffer = 0;
-	size_t buffersize     = 0;
-	unsigned error        = zlib_decompress(&buffer, &buffersize, in, insize, &settings);
-	if (buffer) {
-		out.insert(out.end(), &buffer[0], &buffer[buffersize]);
-		lodepng_free(buffer);
-	}
-	return error;
-}
-
-unsigned decompress(
-	std::vector<uint8_t> &out, const std::vector<uint8_t> &in, const LodePNGDecompressSettings &settings) {
-	return decompress(out, in.empty() ? 0 : &in[0], in.size(), settings);
-}
-#endif /* LODEPNG_COMPILE_DECODER */
-
-#ifdef LODEPNG_COMPILE_ENCODER
-unsigned compress(
-	std::vector<uint8_t> &out, const uint8_t *in, size_t insize, const LodePNGCompressSettings &settings) {
-	uint8_t *buffer = 0;
-	size_t buffersize     = 0;
-	unsigned error        = zlib_compress(&buffer, &buffersize, in, insize, &settings);
-	if (buffer) {
-		out.insert(out.end(), &buffer[0], &buffer[buffersize]);
-		lodepng_free(buffer);
-	}
-	return error;
-}
-
-unsigned compress(
-	std::vector<uint8_t> &out, const std::vector<uint8_t> &in, const LodePNGCompressSettings &settings) {
-	return compress(out, in.empty() ? 0 : &in[0], in.size(), settings);
-}
-#endif /* LODEPNG_COMPILE_ENCODER */
-#endif /* LODEPNG_COMPILE_ZLIB */
-
-#ifdef LODEPNG_COMPILE_PNG
-
-State::State() { lodepng_state_init(this); }
-
-State::State(const State &other) {
-	lodepng_state_init(this);
-	lodepng_state_copy(this, &other);
-}
-
-State::~State() { lodepng_state_cleanup(this); }
-
-State &State::operator=(const State &other) {
-	lodepng_state_copy(this, &other);
-	return *this;
-}
-
-#ifdef LODEPNG_COMPILE_DECODER
-
-unsigned decode(
-	std::vector<uint8_t> &out, unsigned &w, unsigned &h, const uint8_t *in, size_t insize,
-	LodePNGColorType colortype, unsigned bitdepth) {
-	uint8_t *buffer;
-	unsigned error = lodepng_decode_memory(&buffer, &w, &h, in, insize, colortype, bitdepth);
-	if (buffer && !error) {
-		State state;
-		state.info_raw.colortype = colortype;
-		state.info_raw.bitdepth  = bitdepth;
-		size_t buffersize        = lodepng_get_raw_size(w, h, &state.info_raw);
-		out.insert(out.end(), &buffer[0], &buffer[buffersize]);
-		lodepng_free(buffer);
-	}
-	return error;
-}
-
-unsigned decode(
-	std::vector<uint8_t> &out, unsigned &w, unsigned &h, const std::vector<uint8_t> &in,
-	LodePNGColorType colortype, unsigned bitdepth) {
-	return decode(out, w, h, in.empty() ? 0 : &in[0], (unsigned)in.size(), colortype, bitdepth);
-}
-
-unsigned decode(
-	std::vector<uint8_t> &out, unsigned &w, unsigned &h, State &state, const uint8_t *in, size_t insize) {
-	uint8_t *buffer = NULL;
-	unsigned error        = lodepng_decode(&buffer, &w, &h, &state, in, insize);
-	if (buffer && !error) {
-		size_t buffersize = lodepng_get_raw_size(w, h, &state.info_raw);
-		out.insert(out.end(), &buffer[0], &buffer[buffersize]);
-	}
-	lodepng_free(buffer);
-	return error;
-}
-
-unsigned
-decode(std::vector<uint8_t> &out, unsigned &w, unsigned &h, State &state, const std::vector<uint8_t> &in) {
-	return decode(out, w, h, state, in.empty() ? 0 : &in[0], in.size());
-}
-
-#ifdef LODEPNG_COMPILE_DISK
-unsigned decode(
-	std::vector<uint8_t> &out, unsigned &w, unsigned &h, const std::string &filename, LodePNGColorType colortype,
-	unsigned bitdepth) {
-	std::vector<uint8_t> buffer;
-	unsigned error = load_file(buffer, filename);
-	if (error)
-		return error;
-	return decode(out, w, h, buffer, colortype, bitdepth);
-}
-#endif /* LODEPNG_COMPILE_DECODER */
-#endif /* LODEPNG_COMPILE_DISK */
-
-#ifdef LODEPNG_COMPILE_ENCODER
-unsigned encode(
-	std::vector<uint8_t> &out, const uint8_t *in, unsigned w, unsigned h, LodePNGColorType colortype,
-	unsigned bitdepth) {
-	uint8_t *buffer;
-	size_t buffersize;
-	unsigned error = lodepng_encode_memory(&buffer, &buffersize, in, w, h, colortype, bitdepth);
-	if (buffer) {
-		out.insert(out.end(), &buffer[0], &buffer[buffersize]);
-		lodepng_free(buffer);
-	}
-	return error;
-}
-
-unsigned encode(
-	std::vector<uint8_t> &out, const std::vector<uint8_t> &in, unsigned w, unsigned h,
-	LodePNGColorType colortype, unsigned bitdepth) {
-	if (lodepng_get_raw_size_lct(w, h, colortype, bitdepth) > in.size())
-		return 84;
-	return encode(out, in.empty() ? 0 : &in[0], w, h, colortype, bitdepth);
-}
-
-unsigned encode(std::vector<uint8_t> &out, const uint8_t *in, unsigned w, unsigned h, State &state) {
-	uint8_t *buffer;
-	size_t buffersize;
-	unsigned error = lodepng_encode(&buffer, &buffersize, in, w, h, &state);
-	if (buffer) {
-		out.insert(out.end(), &buffer[0], &buffer[buffersize]);
-		lodepng_free(buffer);
-	}
-	return error;
-}
-
-unsigned
-encode(std::vector<uint8_t> &out, const std::vector<uint8_t> &in, unsigned w, unsigned h, State &state) {
-	if (lodepng_get_raw_size(w, h, &state.info_raw) > in.size())
-		return 84;
-	return encode(out, in.empty() ? 0 : &in[0], w, h, state);
-}
-
-#ifdef LODEPNG_COMPILE_DISK
-unsigned encode(
-	const std::string &filename, const uint8_t *in, unsigned w, unsigned h, LodePNGColorType colortype,
-	unsigned bitdepth) {
-	std::vector<uint8_t> buffer;
-	unsigned error = encode(buffer, in, w, h, colortype, bitdepth);
-	if (!error)
-		error = save_file(buffer, filename);
-	return error;
-}
-
-unsigned encode(
-	const std::string &filename, const std::vector<uint8_t> &in, unsigned w, unsigned h,
-	LodePNGColorType colortype, unsigned bitdepth) {
-	if (lodepng_get_raw_size_lct(w, h, colortype, bitdepth) > in.size())
-		return 84;
-	return encode(filename, in.empty() ? 0 : &in[0], w, h, colortype, bitdepth);
-}
-#endif /* LODEPNG_COMPILE_DISK */
-#endif /* LODEPNG_COMPILE_ENCODER */
-#endif /* LODEPNG_COMPILE_PNG */
-} /* namespace lodepng */
-#endif /*LODEPNG_COMPILE_CPP*/
diff --git a/src/lodepng.h b/src/lodepng.h
deleted file mode 100644
index d611fbf..0000000
--- a/src/lodepng.h
+++ /dev/null
@@ -1,1722 +0,0 @@
-/*
-LodePNG version 20160501
-
-Copyright (c) 2005-2016 Lode Vandevenne
-
-This software is provided 'as-is', without any express or implied
-warranty. In no event will the authors be held liable for any damages
-arising from the use of this software.
-
-Permission is granted to anyone to use this software for any purpose,
-including commercial applications, and to alter it and redistribute it
-freely, subject to the following restrictions:
-
-    1. The origin of this software must not be misrepresented; you must not
-    claim that you wrote the original software. If you use this software
-    in a product, an acknowledgment in the product documentation would be
-    appreciated but is not required.
-
-    2. Altered source versions must be plainly marked as such, and must not be
-    misrepresented as being the original software.
-
-    3. This notice may not be removed or altered from any source
-    distribution.
-*/
-
-#ifndef LODEPNG_H
-#define LODEPNG_H
-
-#include <string.h> /*for size_t*/
-
-extern const char *LODEPNG_VERSION_STRING;
-
-/*
-The following #defines are used to create code sections. They can be disabled
-to disable code sections, which can give faster compile time and smaller binary.
-The "NO_COMPILE" defines are designed to be used to pass as defines to the
-compiler command to disable them without modifying this header, e.g.
--DLODEPNG_NO_COMPILE_ZLIB for gcc.
-In addition to those below, you can also define LODEPNG_NO_COMPILE_CRC to
-allow implementing a custom lodepng_crc32.
-*/
-/*deflate & zlib. If disabled, you must specify alternative zlib functions in
-the custom_zlib field of the compress and decompress settings*/
-#ifndef LODEPNG_NO_COMPILE_ZLIB
-#define LODEPNG_COMPILE_ZLIB
-#endif
-/*png encoder and png decoder*/
-#ifndef LODEPNG_NO_COMPILE_PNG
-#define LODEPNG_COMPILE_PNG
-#endif
-/*deflate&zlib decoder and png decoder*/
-#ifndef LODEPNG_NO_COMPILE_DECODER
-#define LODEPNG_COMPILE_DECODER
-#endif
-/*deflate&zlib encoder and png encoder*/
-#ifndef LODEPNG_NO_COMPILE_ENCODER
-#define LODEPNG_COMPILE_ENCODER
-#endif
-/*the optional built in harddisk file loading and saving functions*/
-#ifndef LODEPNG_NO_COMPILE_DISK
-#define LODEPNG_COMPILE_DISK
-#endif
-/*support for chunks other than IHDR, IDAT, PLTE, tRNS, IEND: ancillary and unknown chunks*/
-#ifndef LODEPNG_NO_COMPILE_ANCILLARY_CHUNKS
-#define LODEPNG_COMPILE_ANCILLARY_CHUNKS
-#endif
-/*ability to convert error numerical codes to English text string*/
-#ifndef LODEPNG_NO_COMPILE_ERROR_TEXT
-#define LODEPNG_COMPILE_ERROR_TEXT
-#endif
-/*Compile the default allocators (C's free, malloc and realloc). If you disable this,
-you can define the functions lodepng_free, lodepng_malloc and lodepng_realloc in your
-source files with custom allocators.*/
-#ifndef LODEPNG_NO_COMPILE_ALLOCATORS
-#define LODEPNG_COMPILE_ALLOCATORS
-#endif
-/*compile the C++ version (you can disable the C++ wrapper here even when compiling for C++)*/
-#ifdef __cplusplus
-#ifndef LODEPNG_NO_COMPILE_CPP
-#define LODEPNG_COMPILE_CPP
-#endif
-#endif
-
-#ifdef LODEPNG_COMPILE_CPP
-#include <string>
-#include <vector>
-#endif /*LODEPNG_COMPILE_CPP*/
-
-#ifdef LODEPNG_COMPILE_PNG
-/*The PNG color types (also used for raw).*/
-typedef enum LodePNGColorType {
-	LCT_GREY       = 0, /*greyscale: 1,2,4,8,16 bit*/
-	LCT_RGB        = 2, /*RGB: 8,16 bit*/
-	LCT_PALETTE    = 3, /*palette: 1,2,4,8 bit*/
-	LCT_GREY_ALPHA = 4, /*greyscale with alpha: 8,16 bit*/
-	LCT_RGBA       = 6  /*RGB with alpha: 8,16 bit*/
-} LodePNGColorType;
-
-#ifdef LODEPNG_COMPILE_DECODER
-/*
-Converts PNG data in memory to raw pixel data.
-out: Output parameter. Pointer to buffer that will contain the raw pixel data.
-     After decoding, its size is w * h * (bytes per pixel) bytes larger than
-     initially. Bytes per pixel depends on colortype and bitdepth.
-     Must be freed after usage with free(*out).
-     Note: for 16-bit per channel colors, uses big endian format like PNG does.
-w: Output parameter. Pointer to width of pixel data.
-h: Output parameter. Pointer to height of pixel data.
-in: Memory buffer with the PNG file.
-insize: size of the in buffer.
-colortype: the desired color type for the raw output image. See explanation on PNG color types.
-bitdepth: the desired bit depth for the raw output image. See explanation on PNG color types.
-Return value: LodePNG error code (0 means no error).
-*/
-unsigned lodepng_decode_memory(
-	uint8_t **out, unsigned *w, unsigned *h, const uint8_t *in, size_t insize, LodePNGColorType colortype,
-	unsigned bitdepth);
-
-/*Same as lodepng_decode_memory, but always decodes to 32-bit RGBA raw image*/
-unsigned lodepng_decode32(uint8_t **out, unsigned *w, unsigned *h, const uint8_t *in, size_t insize);
-
-/*Same as lodepng_decode_memory, but always decodes to 24-bit RGB raw image*/
-unsigned lodepng_decode24(uint8_t **out, unsigned *w, unsigned *h, const uint8_t *in, size_t insize);
-
-#ifdef LODEPNG_COMPILE_DISK
-/*
-Load PNG from disk, from file with given name.
-Same as the other decode functions, but instead takes a filename as input.
-*/
-unsigned lodepng_decode_file(
-	uint8_t **out, unsigned *w, unsigned *h, const char *filename, LodePNGColorType colortype, unsigned bitdepth);
-
-/*Same as lodepng_decode_file, but always decodes to 32-bit RGBA raw image.*/
-unsigned lodepng_decode32_file(uint8_t **out, unsigned *w, unsigned *h, const char *filename);
-
-/*Same as lodepng_decode_file, but always decodes to 24-bit RGB raw image.*/
-unsigned lodepng_decode24_file(uint8_t **out, unsigned *w, unsigned *h, const char *filename);
-#endif /*LODEPNG_COMPILE_DISK*/
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-#ifdef LODEPNG_COMPILE_ENCODER
-/*
-Converts raw pixel data into a PNG image in memory. The colortype and bitdepth
-  of the output PNG image cannot be chosen, they are automatically determined
-  by the colortype, bitdepth and content of the input pixel data.
-  Note: for 16-bit per channel colors, needs big endian format like PNG does.
-out: Output parameter. Pointer to buffer that will contain the PNG image data.
-     Must be freed after usage with free(*out).
-outsize: Output parameter. Pointer to the size in bytes of the out buffer.
-image: The raw pixel data to encode. The size of this buffer should be
-       w * h * (bytes per pixel), bytes per pixel depends on colortype and bitdepth.
-w: width of the raw pixel data in pixels.
-h: height of the raw pixel data in pixels.
-colortype: the color type of the raw input image. See explanation on PNG color types.
-bitdepth: the bit depth of the raw input image. See explanation on PNG color types.
-Return value: LodePNG error code (0 means no error).
-*/
-unsigned lodepng_encode_memory(
-	uint8_t **out, size_t *outsize, const uint8_t *image, unsigned w, unsigned h,
-	LodePNGColorType colortype, unsigned bitdepth);
-
-/*Same as lodepng_encode_memory, but always encodes from 32-bit RGBA raw image.*/
-unsigned lodepng_encode32(uint8_t **out, size_t *outsize, const uint8_t *image, unsigned w, unsigned h);
-
-/*Same as lodepng_encode_memory, but always encodes from 24-bit RGB raw image.*/
-unsigned lodepng_encode24(uint8_t **out, size_t *outsize, const uint8_t *image, unsigned w, unsigned h);
-
-#ifdef LODEPNG_COMPILE_DISK
-/*
-Converts raw pixel data into a PNG file on disk.
-Same as the other encode functions, but instead takes a filename as output.
-NOTE: This overwrites existing files without warning!
-*/
-unsigned lodepng_encode_file(
-	const char *filename, const uint8_t *image, unsigned w, unsigned h, LodePNGColorType colortype,
-	unsigned bitdepth);
-
-/*Same as lodepng_encode_file, but always encodes from 32-bit RGBA raw image.*/
-unsigned lodepng_encode32_file(const char *filename, const uint8_t *image, unsigned w, unsigned h);
-
-/*Same as lodepng_encode_file, but always encodes from 24-bit RGB raw image.*/
-unsigned lodepng_encode24_file(const char *filename, const uint8_t *image, unsigned w, unsigned h);
-#endif /*LODEPNG_COMPILE_DISK*/
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-#ifdef LODEPNG_COMPILE_CPP
-namespace lodepng {
-#ifdef LODEPNG_COMPILE_DECODER
-/*Same as lodepng_decode_memory, but decodes to an std::vector. The colortype
-is the format to output the pixels to. Default is RGBA 8-bit per channel.*/
-unsigned decode(
-	std::vector<uint8_t> &out, unsigned &w, unsigned &h, const uint8_t *in, size_t insize,
-	LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
-unsigned decode(
-	std::vector<uint8_t> &out, unsigned &w, unsigned &h, const std::vector<uint8_t> &in,
-	LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
-#ifdef LODEPNG_COMPILE_DISK
-/*
-Converts PNG file from disk to raw pixel data in memory.
-Same as the other decode functions, but instead takes a filename as input.
-*/
-unsigned decode(
-	std::vector<uint8_t> &out, unsigned &w, unsigned &h, const std::string &filename,
-	LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
-#endif /* LODEPNG_COMPILE_DISK */
-#endif /* LODEPNG_COMPILE_DECODER */
-
-#ifdef LODEPNG_COMPILE_ENCODER
-/*Same as lodepng_encode_memory, but encodes to an std::vector. colortype
-is that of the raw input data. The output PNG color type will be auto chosen.*/
-unsigned encode(
-	std::vector<uint8_t> &out, const uint8_t *in, unsigned w, unsigned h,
-	LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
-unsigned encode(
-	std::vector<uint8_t> &out, const std::vector<uint8_t> &in, unsigned w, unsigned h,
-	LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
-#ifdef LODEPNG_COMPILE_DISK
-/*
-Converts 32-bit RGBA raw pixel data into a PNG file on disk.
-Same as the other encode functions, but instead takes a filename as output.
-NOTE: This overwrites existing files without warning!
-*/
-unsigned encode(
-	const std::string &filename, const uint8_t *in, unsigned w, unsigned h, LodePNGColorType colortype = LCT_RGBA,
-	unsigned bitdepth = 8);
-unsigned encode(
-	const std::string &filename, const std::vector<uint8_t> &in, unsigned w, unsigned h,
-	LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
-#endif /* LODEPNG_COMPILE_DISK */
-#endif /* LODEPNG_COMPILE_ENCODER */
-} /* namespace lodepng */
-#endif /*LODEPNG_COMPILE_CPP*/
-#endif /*LODEPNG_COMPILE_PNG*/
-
-#ifdef LODEPNG_COMPILE_ERROR_TEXT
-/*Returns an English description of the numerical error code.*/
-const char *lodepng_error_text(unsigned code);
-#endif /*LODEPNG_COMPILE_ERROR_TEXT*/
-
-#ifdef LODEPNG_COMPILE_DECODER
-/*Settings for zlib decompression*/
-typedef struct LodePNGDecompressSettings LodePNGDecompressSettings;
-struct LodePNGDecompressSettings {
-	unsigned ignore_adler32; /*if 1, continue and don't give an error message if the Adler32 checksum is corrupted*/
-
-	/*use custom zlib decoder instead of built in one (default: null)*/
-	unsigned (*custom_zlib)(
-		uint8_t **, size_t *, const uint8_t *, size_t, const LodePNGDecompressSettings *);
-	/*use custom deflate decoder instead of built in one (default: null)
-	if custom_zlib is used, custom_deflate is ignored since only the built in
-	zlib function will call custom_deflate*/
-	unsigned (*custom_inflate)(
-		uint8_t **, size_t *, const uint8_t *, size_t, const LodePNGDecompressSettings *);
-
-	const void *custom_context; /*optional custom settings for custom functions*/
-};
-
-extern const LodePNGDecompressSettings lodepng_default_decompress_settings;
-void lodepng_decompress_settings_init(LodePNGDecompressSettings *settings);
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-#ifdef LODEPNG_COMPILE_ENCODER
-/*
-Settings for zlib compression. Tweaking these settings tweaks the balance
-between speed and compression ratio.
-*/
-typedef struct LodePNGCompressSettings LodePNGCompressSettings;
-struct LodePNGCompressSettings /*deflate = compress*/
-{
-	/*LZ77 related settings*/
-	unsigned btype;    /*the block type for LZ (0, 1, 2 or 3, see zlib standard). Should be 2 for proper compression.*/
-	unsigned use_lz77; /*whether or not to use LZ77. Should be 1 for proper compression.*/
-	unsigned windowsize; /*must be a power of two <= 32768. higher compresses more but is slower. Default value: 2048.*/
-	unsigned minmatch;   /*mininum lz77 length. 3 is normally best, 6 can be better for some PNGs. Default: 0*/
-	unsigned nicematch;  /*stop searching if >= this length found. Set to 258 for best compression. Default: 128*/
-	unsigned lazymatching; /*use lazy matching: better compression but a bit slower. Default: true*/
-
-	/*use custom zlib encoder instead of built in one (default: null)*/
-	unsigned (*custom_zlib)(uint8_t **, size_t *, const uint8_t *, size_t, const LodePNGCompressSettings *);
-	/*use custom deflate encoder instead of built in one (default: null)
-	if custom_zlib is used, custom_deflate is ignored since only the built in
-	zlib function will call custom_deflate*/
-	unsigned (*custom_deflate)(
-		uint8_t **, size_t *, const uint8_t *, size_t, const LodePNGCompressSettings *);
-
-	const void *custom_context; /*optional custom settings for custom functions*/
-};
-
-extern const LodePNGCompressSettings lodepng_default_compress_settings;
-void lodepng_compress_settings_init(LodePNGCompressSettings *settings);
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-#ifdef LODEPNG_COMPILE_PNG
-/*
-Color mode of an image. Contains all information required to decode the pixel
-bits to RGBA colors. This information is the same as used in the PNG file
-format, and is used both for PNG and raw image data in LodePNG.
-*/
-typedef struct LodePNGColorMode {
-	/*header (IHDR)*/
-	LodePNGColorType colortype; /*color type, see PNG standard or documentation further in this header file*/
-	unsigned bitdepth;          /*bits per sample, see PNG standard or documentation further in this header file*/
-
-	/*
-	palette (PLTE and tRNS)
-
-	Dynamically allocated with the colors of the palette, including alpha.
-	When encoding a PNG, to store your colors in the palette of the LodePNGColorMode, first use
-	lodepng_palette_clear, then for each color use lodepng_palette_add.
-	If you encode an image without alpha with palette, don't forget to put value 255 in each A byte of the palette.
-
-	When decoding, by default you can ignore this palette, since LodePNG already
-	fills the palette colors in the pixels of the raw RGBA output.
-
-	The palette is only supported for color type 3.
-	*/
-	uint8_t *palette; /*palette in RGBARGBA... order. When allocated, must be either 0, or have size 1024*/
-	size_t palettesize;     /*palette size in number of colors (amount of bytes is 4 * palettesize)*/
-
-	/*
-	transparent color key (tRNS)
-
-	This color uses the same bit depth as the bitdepth value in this struct, which can be 1-bit to 16-bit.
-	For greyscale PNGs, r, g and b will all 3 be set to the same.
-
-	When decoding, by default you can ignore this information, since LodePNG sets
-	pixels with this key to transparent already in the raw RGBA output.
-
-	The color key is only supported for color types 0 and 2.
-	*/
-	unsigned key_defined; /*is a transparent color key given? 0 = false, 1 = true*/
-	unsigned key_r;       /*red/greyscale component of color key*/
-	unsigned key_g;       /*green component of color key*/
-	unsigned key_b;       /*blue component of color key*/
-} LodePNGColorMode;
-
-/*init, cleanup and copy functions to use with this struct*/
-void lodepng_color_mode_init(LodePNGColorMode *info);
-void lodepng_color_mode_cleanup(LodePNGColorMode *info);
-/*return value is error code (0 means no error)*/
-unsigned lodepng_color_mode_copy(LodePNGColorMode *dest, const LodePNGColorMode *source);
-
-void lodepng_palette_clear(LodePNGColorMode *info);
-/*add 1 color to the palette*/
-unsigned
-lodepng_palette_add(LodePNGColorMode *info, uint8_t r, uint8_t g, uint8_t b, uint8_t a);
-
-/*get the total amount of bits per pixel, based on colortype and bitdepth in the struct*/
-unsigned lodepng_get_bpp(const LodePNGColorMode *info);
-/*get the amount of color channels used, based on colortype in the struct.
-If a palette is used, it counts as 1 channel.*/
-unsigned lodepng_get_channels(const LodePNGColorMode *info);
-/*is it a greyscale type? (only colortype 0 or 4)*/
-unsigned lodepng_is_greyscale_type(const LodePNGColorMode *info);
-/*has it got an alpha channel? (only colortype 2 or 6)*/
-unsigned lodepng_is_alpha_type(const LodePNGColorMode *info);
-/*has it got a palette? (only colortype 3)*/
-unsigned lodepng_is_palette_type(const LodePNGColorMode *info);
-/*only returns true if there is a palette and there is a value in the palette with alpha < 255.
-Loops through the palette to check this.*/
-unsigned lodepng_has_palette_alpha(const LodePNGColorMode *info);
-/*
-Check if the given color info indicates the possibility of having non-opaque pixels in the PNG image.
-Returns true if the image can have translucent or invisible pixels (it still be opaque if it doesn't use such pixels).
-Returns false if the image can only have opaque pixels.
-In detail, it returns true only if it's a color type with alpha, or has a palette with non-opaque values,
-or if "key_defined" is true.
-*/
-unsigned lodepng_can_have_alpha(const LodePNGColorMode *info);
-/*Returns the byte size of a raw image buffer with given width, height and color mode*/
-size_t lodepng_get_raw_size(unsigned w, unsigned h, const LodePNGColorMode *color);
-
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-/*The information of a Time chunk in PNG.*/
-typedef struct LodePNGTime {
-	unsigned year;   /*2 bytes used (0-65535)*/
-	unsigned month;  /*1-12*/
-	unsigned day;    /*1-31*/
-	unsigned hour;   /*0-23*/
-	unsigned minute; /*0-59*/
-	unsigned second; /*0-60 (to allow for leap seconds)*/
-} LodePNGTime;
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-
-/*Information about the PNG image, except pixels, width and height.*/
-typedef struct LodePNGInfo {
-	/*header (IHDR), palette (PLTE) and transparency (tRNS) chunks*/
-	unsigned compression_method; /*compression method of the original file. Always 0.*/
-	unsigned filter_method;      /*filter method of the original file*/
-	unsigned interlace_method;   /*interlace method of the original file*/
-	LodePNGColorMode color;      /*color type and bits, palette and transparency of the PNG file*/
-
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-	/*
-	suggested background color chunk (bKGD)
-	This color uses the same color mode as the PNG (except alpha channel), which can be 1-bit to 16-bit.
-
-	For greyscale PNGs, r, g and b will all 3 be set to the same. When encoding
-	the encoder writes the red one. For palette PNGs: When decoding, the RGB value
-	will be stored, not a palette index. But when encoding, specify the index of
-	the palette in background_r, the other two are then ignored.
-
-	The decoder does not use this background color to edit the color of pixels.
-	*/
-	unsigned background_defined; /*is a suggested background color given?*/
-	unsigned background_r;       /*red component of suggested background color*/
-	unsigned background_g;       /*green component of suggested background color*/
-	unsigned background_b;       /*blue component of suggested background color*/
-
-	/*
-	non-international text chunks (tEXt and zTXt)
-
-	The char** arrays each contain num strings. The actual messages are in
-	text_strings, while text_keys are keywords that give a short description what
-	the actual text represents, e.g. Title, Author, Description, or anything else.
-
-	A keyword is minimum 1 character and maximum 79 characters long. It's
-	discouraged to use a single line length longer than 79 characters for texts.
-
-	Don't allocate these text buffers yourself. Use the init/cleanup functions
-	correctly and use lodepng_add_text and lodepng_clear_text.
-	*/
-	size_t text_num;     /*the amount of texts in these char** buffers (there may be more texts in itext)*/
-	char **text_keys;    /*the keyword of a text chunk (e.g. "Comment")*/
-	char **text_strings; /*the actual text*/
-
-	/*
-	international text chunks (iTXt)
-	Similar to the non-international text chunks, but with additional strings
-	"langtags" and "transkeys".
-	*/
-	size_t itext_num;       /*the amount of international texts in this PNG*/
-	char **itext_keys;      /*the English keyword of the text chunk (e.g. "Comment")*/
-	char **itext_langtags;  /*language tag for this text's language, ISO/IEC 646 string, e.g. ISO 639 language tag*/
-	char **itext_transkeys; /*keyword translated to the international language - UTF-8 string*/
-	char **itext_strings;   /*the actual international text - UTF-8 string*/
-
-	/*time chunk (tIME)*/
-	unsigned time_defined; /*set to 1 to make the encoder generate a tIME chunk*/
-	LodePNGTime time;
-
-	/*phys chunk (pHYs)*/
-	unsigned phys_defined; /*if 0, there is no pHYs chunk and the values below are undefined, if 1 else there is one*/
-	unsigned phys_x;       /*pixels per unit in x direction*/
-	unsigned phys_y;       /*pixels per unit in y direction*/
-	unsigned phys_unit;    /*may be 0 (unknown unit) or 1 (metre)*/
-
-	/*
-	unknown chunks
-	There are 3 buffers, one for each position in the PNG where unknown chunks can appear
-	each buffer contains all unknown chunks for that position consecutively
-	The 3 buffers are the unknown chunks between certain critical chunks:
-	0: IHDR-PLTE, 1: PLTE-IDAT, 2: IDAT-IEND
-	Do not allocate or traverse this data yourself. Use the chunk traversing functions declared
-	later, such as lodepng_chunk_next and lodepng_chunk_append, to read/write this struct.
-	*/
-	uint8_t *unknown_chunks_data[3];
-	size_t unknown_chunks_size[3]; /*size in bytes of the unknown chunks, given for protection*/
-#endif                             /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-} LodePNGInfo;
-
-/*init, cleanup and copy functions to use with this struct*/
-void lodepng_info_init(LodePNGInfo *info);
-void lodepng_info_cleanup(LodePNGInfo *info);
-/*return value is error code (0 means no error)*/
-unsigned lodepng_info_copy(LodePNGInfo *dest, const LodePNGInfo *source);
-
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-void lodepng_clear_text(LodePNGInfo *info); /*use this to clear the texts again after you filled them in*/
-unsigned lodepng_add_text(LodePNGInfo *info, const char *key, const char *str); /*push back both texts at once*/
-
-void lodepng_clear_itext(LodePNGInfo *info); /*use this to clear the itexts again after you filled them in*/
-unsigned lodepng_add_itext(
-	LodePNGInfo *info, const char *key, const char *langtag, const char *transkey,
-	const char *str); /*push back the 4 texts of 1 chunk at once*/
-#endif                /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-
-/*
-Converts raw buffer from one color type to another color type, based on
-LodePNGColorMode structs to describe the input and output color type.
-See the reference manual at the end of this header file to see which color conversions are supported.
-return value = LodePNG error code (0 if all went ok, an error if the conversion isn't supported)
-The out buffer must have size (w * h * bpp + 7) / 8, where bpp is the bits per pixel
-of the output color type (lodepng_get_bpp).
-For < 8 bpp images, there should not be padding bits at the end of scanlines.
-For 16-bit per channel colors, uses big endian format like PNG does.
-Return value is LodePNG error code
-*/
-unsigned lodepng_convert(
-	uint8_t *out, const uint8_t *in, const LodePNGColorMode *mode_out, const LodePNGColorMode *mode_in,
-	unsigned w, unsigned h);
-
-#ifdef LODEPNG_COMPILE_DECODER
-/*
-Settings for the decoder. This contains settings for the PNG and the Zlib
-decoder, but not the Info settings from the Info structs.
-*/
-typedef struct LodePNGDecoderSettings {
-	LodePNGDecompressSettings zlibsettings; /*in here is the setting to ignore Adler32 checksums*/
-
-	unsigned ignore_crc; /*ignore CRC checksums*/
-
-	unsigned color_convert; /*whether to convert the PNG to the color type you want. Default: yes*/
-
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-	unsigned read_text_chunks; /*if false but remember_unknown_chunks is true, they're stored in the unknown chunks*/
-	/*store all bytes from unknown chunks in the LodePNGInfo (off by default, useful for a png editor)*/
-	unsigned remember_unknown_chunks;
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-} LodePNGDecoderSettings;
-
-void lodepng_decoder_settings_init(LodePNGDecoderSettings *settings);
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-#ifdef LODEPNG_COMPILE_ENCODER
-/*automatically use color type with less bits per pixel if losslessly possible. Default: AUTO*/
-typedef enum LodePNGFilterStrategy {
-	/*every filter at zero*/
-	LFS_ZERO,
-	/*Use filter that gives minimum sum, as described in the official PNG filter heuristic.*/
-	LFS_MINSUM,
-	/*Use the filter type that gives smallest Shannon entropy for this scanline. Depending
-	on the image, this is better or worse than minsum.*/
-	LFS_ENTROPY,
-	/*
-	Brute-force-search PNG filters by compressing each filter for each scanline.
-	Experimental, very slow, and only rarely gives better compression than MINSUM.
-	*/
-	LFS_BRUTE_FORCE,
-	/*use predefined_filters buffer: you specify the filter type for each scanline*/
-	LFS_PREDEFINED
-} LodePNGFilterStrategy;
-
-/*Gives characteristics about the colors of the image, which helps decide which color model to use for encoding.
-Used internally by default if "auto_convert" is enabled. Public because it's useful for custom algorithms.*/
-typedef struct LodePNGColorProfile {
-	unsigned colored;     /*not greyscale*/
-	unsigned key;         /*if true, image is not opaque. Only if true and alpha is false, color key is possible.*/
-	unsigned short key_r; /*these values are always in 16-bit bitdepth in the profile*/
-	unsigned short key_g;
-	unsigned short key_b;
-	unsigned alpha;              /*alpha channel or alpha palette required*/
-	unsigned numcolors;          /*amount of colors, up to 257. Not valid if bits == 16.*/
-	uint8_t palette[1024]; /*Remembers up to the first 256 RGBA colors, in no particular order*/
-	unsigned
-		bits; /*bits per channel (not for palette). 1,2 or 4 for greyscale only. 16 if 16-bit per channel required.*/
-} LodePNGColorProfile;
-
-void lodepng_color_profile_init(LodePNGColorProfile *profile);
-
-/*Get a LodePNGColorProfile of the image.*/
-unsigned lodepng_get_color_profile(
-	LodePNGColorProfile *profile, const uint8_t *image, unsigned w, unsigned h, const LodePNGColorMode *mode_in);
-/*The function LodePNG uses internally to decide the PNG color with auto_convert.
-Chooses an optimal color model, e.g. grey if only grey pixels, palette if < 256 colors, ...*/
-unsigned lodepng_auto_choose_color(
-	LodePNGColorMode *mode_out, const uint8_t *image, unsigned w, unsigned h, const LodePNGColorMode *mode_in);
-
-/*Settings for the encoder.*/
-typedef struct LodePNGEncoderSettings {
-	LodePNGCompressSettings zlibsettings; /*settings for the zlib encoder, such as window size, ...*/
-
-	unsigned auto_convert; /*automatically choose output PNG color type. Default: true*/
-
-	/*If true, follows the official PNG heuristic: if the PNG uses a palette or lower than
-	8 bit depth, set all filters to zero. Otherwise use the filter_strategy. Note that to
-	completely follow the official PNG heuristic, filter_palette_zero must be true and
-	filter_strategy must be LFS_MINSUM*/
-	unsigned filter_palette_zero;
-	/*Which filter strategy to use when not using zeroes due to filter_palette_zero.
-	Set filter_palette_zero to 0 to ensure always using your chosen strategy. Default: LFS_MINSUM*/
-	LodePNGFilterStrategy filter_strategy;
-	/*used if filter_strategy is LFS_PREDEFINED. In that case, this must point to a buffer with
-	the same length as the amount of scanlines in the image, and each value must <= 5. You
-	have to cleanup this buffer, LodePNG will never free it. Don't forget that filter_palette_zero
-	must be set to 0 to ensure this is also used on palette or low bitdepth images.*/
-	const uint8_t *predefined_filters;
-
-	/*force creating a PLTE chunk if colortype is 2 or 6 (= a suggested palette).
-	If colortype is 3, PLTE is _always_ created.*/
-	unsigned force_palette;
-#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS
-	/*add LodePNG identifier and version as a text chunk, for debugging*/
-	unsigned add_id;
-	/*encode text chunks as zTXt chunks instead of tEXt chunks, and use compression in iTXt chunks*/
-	unsigned text_compression;
-#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/
-} LodePNGEncoderSettings;
-
-void lodepng_encoder_settings_init(LodePNGEncoderSettings *settings);
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-#if defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER)
-/*The settings, state and information for extended encoding and decoding.*/
-typedef struct LodePNGState {
-#ifdef LODEPNG_COMPILE_DECODER
-	LodePNGDecoderSettings decoder; /*the decoding settings*/
-#endif                              /*LODEPNG_COMPILE_DECODER*/
-#ifdef LODEPNG_COMPILE_ENCODER
-	LodePNGEncoderSettings encoder; /*the encoding settings*/
-#endif                              /*LODEPNG_COMPILE_ENCODER*/
-	LodePNGColorMode info_raw;      /*specifies the format in which you would like to get the raw pixel buffer*/
-	LodePNGInfo info_png;           /*info of the PNG image obtained after decoding*/
-	unsigned error;
-#ifdef LODEPNG_COMPILE_CPP
-	/* For the lodepng::State subclass. */
-	virtual ~LodePNGState() {}
-#endif
-} LodePNGState;
-
-/*init, cleanup and copy functions to use with this struct*/
-void lodepng_state_init(LodePNGState *state);
-void lodepng_state_cleanup(LodePNGState *state);
-void lodepng_state_copy(LodePNGState *dest, const LodePNGState *source);
-#endif /* defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) */
-
-#ifdef LODEPNG_COMPILE_DECODER
-/*
-Same as lodepng_decode_memory, but uses a LodePNGState to allow custom settings and
-getting much more information about the PNG image and color mode.
-*/
-unsigned lodepng_decode(
-	uint8_t **out, unsigned *w, unsigned *h, LodePNGState *state, const uint8_t *in, size_t insize);
-
-/*
-Read the PNG header, but not the actual data. This returns only the information
-that is in the header chunk of the PNG, such as width, height and color type. The
-information is placed in the info_png field of the LodePNGState.
-*/
-unsigned lodepng_inspect(unsigned *w, unsigned *h, LodePNGState *state, const uint8_t *in, size_t insize);
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-#ifdef LODEPNG_COMPILE_ENCODER
-/*This function allocates the out buffer with standard malloc and stores the size in *outsize.*/
-unsigned lodepng_encode(
-	uint8_t **out, size_t *outsize, const uint8_t *image, unsigned w, unsigned h, LodePNGState *state);
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-/*
-The lodepng_chunk functions are normally not needed, except to traverse the
-unknown chunks stored in the LodePNGInfo struct, or add new ones to it.
-It also allows traversing the chunks of an encoded PNG file yourself.
-
-PNG standard chunk naming conventions:
-First byte: uppercase = critical, lowercase = ancillary
-Second byte: uppercase = public, lowercase = private
-Third byte: must be uppercase
-Fourth byte: uppercase = unsafe to copy, lowercase = safe to copy
-*/
-
-/*
-Gets the length of the data of the chunk. Total chunk length has 12 bytes more.
-There must be at least 4 bytes to read from. If the result value is too large,
-it may be corrupt data.
-*/
-unsigned lodepng_chunk_length(const uint8_t *chunk);
-
-/*puts the 4-byte type in null terminated string*/
-void lodepng_chunk_type(char type[5], const uint8_t *chunk);
-
-/*check if the type is the given type*/
-uint8_t lodepng_chunk_type_equals(const uint8_t *chunk, const char *type);
-
-/*0: it's one of the critical chunk types, 1: it's an ancillary chunk (see PNG standard)*/
-uint8_t lodepng_chunk_ancillary(const uint8_t *chunk);
-
-/*0: public, 1: private (see PNG standard)*/
-uint8_t lodepng_chunk_private(const uint8_t *chunk);
-
-/*0: the chunk is unsafe to copy, 1: the chunk is safe to copy (see PNG standard)*/
-uint8_t lodepng_chunk_safetocopy(const uint8_t *chunk);
-
-/*get pointer to the data of the chunk, where the input points to the header of the chunk*/
-uint8_t *lodepng_chunk_data(uint8_t *chunk);
-const uint8_t *lodepng_chunk_data_const(const uint8_t *chunk);
-
-/*returns 0 if the crc is correct, 1 if it's incorrect (0 for OK as usual!)*/
-unsigned lodepng_chunk_check_crc(const uint8_t *chunk);
-
-/*generates the correct CRC from the data and puts it in the last 4 bytes of the chunk*/
-void lodepng_chunk_generate_crc(uint8_t *chunk);
-
-/*iterate to next chunks. don't use on IEND chunk, as there is no next chunk then*/
-uint8_t *lodepng_chunk_next(uint8_t *chunk);
-const uint8_t *lodepng_chunk_next_const(const uint8_t *chunk);
-
-/*
-Appends chunk to the data in out. The given chunk should already have its chunk header.
-The out variable and outlength are updated to reflect the new reallocated buffer.
-Returns error code (0 if it went ok)
-*/
-unsigned lodepng_chunk_append(uint8_t **out, size_t *outlength, const uint8_t *chunk);
-
-/*
-Appends new chunk to out. The chunk to append is given by giving its length, type
-and data separately. The type is a 4-letter string.
-The out variable and outlength are updated to reflect the new reallocated buffer.
-Returne error code (0 if it went ok)
-*/
-unsigned lodepng_chunk_create(
-	uint8_t **out, size_t *outlength, unsigned length, const char *type, const uint8_t *data);
-
-/*Calculate CRC32 of buffer*/
-unsigned lodepng_crc32(const uint8_t *buf, size_t len);
-#endif /*LODEPNG_COMPILE_PNG*/
-
-#ifdef LODEPNG_COMPILE_ZLIB
-/*
-This zlib part can be used independently to zlib compress and decompress a
-buffer. It cannot be used to create gzip files however, and it only supports the
-part of zlib that is required for PNG, it does not support dictionaries.
-*/
-
-#ifdef LODEPNG_COMPILE_DECODER
-/*Inflate a buffer. Inflate is the decompression step of deflate. Out buffer must be freed after use.*/
-unsigned lodepng_inflate(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGDecompressSettings *settings);
-
-/*
-Decompresses Zlib data. Reallocates the out buffer and appends the data. The
-data must be according to the zlib specification.
-Either, *out must be NULL and *outsize must be 0, or, *out must be a valid
-buffer and *outsize its size in bytes. out must be freed by user after usage.
-*/
-unsigned lodepng_zlib_decompress(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGDecompressSettings *settings);
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-#ifdef LODEPNG_COMPILE_ENCODER
-/*
-Compresses data with Zlib. Reallocates the out buffer and appends the data.
-Zlib adds a small header and trailer around the deflate data.
-The data is output in the format of the zlib specification.
-Either, *out must be NULL and *outsize must be 0, or, *out must be a valid
-buffer and *outsize its size in bytes. out must be freed by user after usage.
-*/
-unsigned lodepng_zlib_compress(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGCompressSettings *settings);
-
-/*
-Find length-limited Huffman code for given frequencies. This function is in the
-public interface only for tests, it's used internally by lodepng_deflate.
-*/
-unsigned
-lodepng_huffman_code_lengths(unsigned *lengths, const unsigned *frequencies, size_t numcodes, unsigned maxbitlen);
-
-/*Compress a buffer with deflate. See RFC 1951. Out buffer must be freed after use.*/
-unsigned lodepng_deflate(
-	uint8_t **out, size_t *outsize, const uint8_t *in, size_t insize,
-	const LodePNGCompressSettings *settings);
-
-#endif /*LODEPNG_COMPILE_ENCODER*/
-#endif /*LODEPNG_COMPILE_ZLIB*/
-
-#ifdef LODEPNG_COMPILE_DISK
-/*
-Load a file from disk into buffer. The function allocates the out buffer, and
-after usage you should free it.
-out: output parameter, contains pointer to loaded buffer.
-outsize: output parameter, size of the allocated out buffer
-filename: the path to the file to load
-return value: error code (0 means ok)
-*/
-unsigned lodepng_load_file(uint8_t **out, size_t *outsize, const char *filename);
-
-/*
-Save a file from buffer to disk. Warning, if it exists, this function overwrites
-the file without warning!
-buffer: the buffer to write
-buffersize: size of the buffer to write
-filename: the path to the file to save to
-return value: error code (0 means ok)
-*/
-unsigned lodepng_save_file(const uint8_t *buffer, size_t buffersize, const char *filename);
-#endif /*LODEPNG_COMPILE_DISK*/
-
-#ifdef LODEPNG_COMPILE_CPP
-/* The LodePNG C++ wrapper uses std::vectors instead of manually allocated memory buffers. */
-namespace lodepng {
-#ifdef LODEPNG_COMPILE_PNG
-class State : public LodePNGState {
-  public:
-	State();
-	State(const State &other);
-	virtual ~State();
-	State &operator=(const State &other);
-};
-
-#ifdef LODEPNG_COMPILE_DECODER
-/* Same as other lodepng::decode, but using a State for more settings and information. */
-unsigned
-decode(std::vector<uint8_t> &out, unsigned &w, unsigned &h, State &state, const uint8_t *in, size_t insize);
-unsigned
-decode(std::vector<uint8_t> &out, unsigned &w, unsigned &h, State &state, const std::vector<uint8_t> &in);
-#endif /*LODEPNG_COMPILE_DECODER*/
-
-#ifdef LODEPNG_COMPILE_ENCODER
-/* Same as other lodepng::encode, but using a State for more settings and information. */
-unsigned encode(std::vector<uint8_t> &out, const uint8_t *in, unsigned w, unsigned h, State &state);
-unsigned
-encode(std::vector<uint8_t> &out, const std::vector<uint8_t> &in, unsigned w, unsigned h, State &state);
-#endif /*LODEPNG_COMPILE_ENCODER*/
-
-#ifdef LODEPNG_COMPILE_DISK
-/*
-Load a file from disk into an std::vector.
-return value: error code (0 means ok)
-*/
-unsigned load_file(std::vector<uint8_t> &buffer, const std::string &filename);
-
-/*
-Save the binary data in an std::vector to a file on disk. The file is overwritten
-without warning.
-*/
-unsigned save_file(const std::vector<uint8_t> &buffer, const std::string &filename);
-#endif /* LODEPNG_COMPILE_DISK */
-#endif /* LODEPNG_COMPILE_PNG */
-
-#ifdef LODEPNG_COMPILE_ZLIB
-#ifdef LODEPNG_COMPILE_DECODER
-/* Zlib-decompress an uint8_t buffer */
-unsigned decompress(
-	std::vector<uint8_t> &out, const uint8_t *in, size_t insize,
-	const LodePNGDecompressSettings &settings = lodepng_default_decompress_settings);
-
-/* Zlib-decompress an std::vector */
-unsigned decompress(
-	std::vector<uint8_t> &out, const std::vector<uint8_t> &in,
-	const LodePNGDecompressSettings &settings = lodepng_default_decompress_settings);
-#endif /* LODEPNG_COMPILE_DECODER */
-
-#ifdef LODEPNG_COMPILE_ENCODER
-/* Zlib-compress an uint8_t buffer */
-unsigned compress(
-	std::vector<uint8_t> &out, const uint8_t *in, size_t insize,
-	const LodePNGCompressSettings &settings = lodepng_default_compress_settings);
-
-/* Zlib-compress an std::vector */
-unsigned compress(
-	std::vector<uint8_t> &out, const std::vector<uint8_t> &in,
-	const LodePNGCompressSettings &settings = lodepng_default_compress_settings);
-#endif /* LODEPNG_COMPILE_ENCODER */
-#endif /* LODEPNG_COMPILE_ZLIB */
-} /* namespace lodepng */
-#endif /*LODEPNG_COMPILE_CPP*/
-
-/*
-TODO:
-[.] test if there are no memory leaks or security exploits - done a lot but needs to be checked often
-[.] check compatibility with various compilers  - done but needs to be redone for every newer version
-[X] converting color to 16-bit per channel types
-[ ] read all public PNG chunk types (but never let the color profile and gamma ones touch RGB values)
-[ ] make sure encoder generates no chunks with size > (2^31)-1
-[ ] partial decoding (stream processing)
-[X] let the "isFullyOpaque" function check color keys and transparent palettes too
-[X] better name for the variables "codes", "codesD", "codelengthcodes", "clcl" and "lldl"
-[ ] don't stop decoding on errors like 69, 57, 58 (make warnings)
-[ ] make warnings like: oob palette, checksum fail, data after iend, wrong/unknown crit chunk, no null terminator in
-text, ... [ ] let the C++ wrapper catch exceptions coming from the standard library and return LodePNG error codes [ ]
-allow user to provide custom color conversion functions, e.g. for premultiplied alpha, padding bits or not, ... [ ]
-allow user to give data (void*) to custom allocator
-*/
-
-#endif /*LODEPNG_H inclusion guard*/
-
-/*
-LodePNG Documentation
----------------------
-
-0. table of contents
---------------------
-
-  1. about
-   1.1. supported features
-   1.2. features not supported
-  2. C and C++ version
-  3. security
-  4. decoding
-  5. encoding
-  6. color conversions
-    6.1. PNG color types
-    6.2. color conversions
-    6.3. padding bits
-    6.4. A note about 16-bits per channel and endianness
-  7. error values
-  8. chunks and PNG editing
-  9. compiler support
-  10. examples
-   10.1. decoder C++ example
-   10.2. decoder C example
-  11. state settings reference
-  12. changes
-  13. contact information
-
-
-1. about
---------
-
-PNG is a file format to store raster images losslessly with good compression,
-supporting different color types and alpha channel.
-
-LodePNG is a PNG codec according to the Portable Network Graphics (PNG)
-Specification (Second Edition) - W3C Recommendation 10 November 2003.
-
-The specifications used are:
-
-*) Portable Network Graphics (PNG) Specification (Second Edition):
-     http://www.w3.org/TR/2003/REC-PNG-20031110
-*) RFC 1950 ZLIB Compressed Data Format version 3.3:
-     http://www.gzip.org/zlib/rfc-zlib.html
-*) RFC 1951 DEFLATE Compressed Data Format Specification ver 1.3:
-     http://www.gzip.org/zlib/rfc-deflate.html
-
-The most recent version of LodePNG can currently be found at
-http://lodev.org/lodepng/
-
-LodePNG works both in C (ISO C90) and C++, with a C++ wrapper that adds
-extra functionality.
-
-LodePNG exists out of two files:
--lodepng.h: the header file for both C and C++
--lodepng.c(pp): give it the name lodepng.c or lodepng.cpp (or .cc) depending on your usage
-
-If you want to start using LodePNG right away without reading this doc, get the
-examples from the LodePNG website to see how to use it in code, or check the
-smaller examples in chapter 13 here.
-
-LodePNG is simple but only supports the basic requirements. To achieve
-simplicity, the following design choices were made: There are no dependencies
-on any external library. There are functions to decode and encode a PNG with
-a single function call, and extended versions of these functions taking a
-LodePNGState struct allowing to specify or get more information. By default
-the colors of the raw image are always RGB or RGBA, no matter what color type
-the PNG file uses. To read and write files, there are simple functions to
-convert the files to/from buffers in memory.
-
-This all makes LodePNG suitable for loading textures in games, demos and small
-programs, ... It's less suitable for full fledged image editors, loading PNGs
-over network (it requires all the image data to be available before decoding can
-begin), life-critical systems, ...
-
-1.1. supported features
------------------------
-
-The following features are supported by the decoder:
-
-*) decoding of PNGs with any color type, bit depth and interlace mode, to a 24- or 32-bit color raw image,
-   or the same color type as the PNG
-*) encoding of PNGs, from any raw image to 24- or 32-bit color, or the same color type as the raw image
-*) Adam7 interlace and deinterlace for any color type
-*) loading the image from harddisk or decoding it from a buffer from other sources than harddisk
-*) support for alpha channels, including RGBA color model, translucent palettes and color keying
-*) zlib decompression (inflate)
-*) zlib compression (deflate)
-*) CRC32 and ADLER32 checksums
-*) handling of unknown chunks, allowing making a PNG editor that stores custom and unknown chunks.
-*) the following chunks are supported (generated/interpreted) by both encoder and decoder:
-    IHDR: header information
-    PLTE: color palette
-    IDAT: pixel data
-    IEND: the final chunk
-    tRNS: transparency for palettized images
-    tEXt: textual information
-    zTXt: compressed textual information
-    iTXt: international textual information
-    bKGD: suggested background color
-    pHYs: physical dimensions
-    tIME: modification time
-
-1.2. features not supported
----------------------------
-
-The following features are _not_ supported:
-
-*) some features needed to make a conformant PNG-Editor might be still missing.
-*) partial loading/stream processing. All data must be available and is processed in one call.
-*) The following public chunks are not supported but treated as unknown chunks by LodePNG
-    cHRM, gAMA, iCCP, sRGB, sBIT, hIST, sPLT
-   Some of these are not supported on purpose: LodePNG wants to provide the RGB values
-   stored in the pixels, not values modified by system dependent gamma or color models.
-
-
-2. C and C++ version
---------------------
-
-The C version uses buffers allocated with alloc that you need to free()
-yourself. You need to use init and cleanup functions for each struct whenever
-using a struct from the C version to avoid exploits and memory leaks.
-
-The C++ version has extra functions with std::vectors in the interface and the
-lodepng::State class which is a LodePNGState with constructor and destructor.
-
-These files work without modification for both C and C++ compilers because all
-the additional C++ code is in "#ifdef __cplusplus" blocks that make C-compilers
-ignore it, and the C code is made to compile both with strict ISO C90 and C++.
-
-To use the C++ version, you need to rename the source file to lodepng.cpp
-(instead of lodepng.c), and compile it with a C++ compiler.
-
-To use the C version, you need to rename the source file to lodepng.c (instead
-of lodepng.cpp), and compile it with a C compiler.
-
-
-3. Security
------------
-
-Even if carefully designed, it's always possible that LodePNG contains possible
-exploits. If you discover one, please let me know, and it will be fixed.
-
-When using LodePNG, care has to be taken with the C version of LodePNG, as well
-as the C-style structs when working with C++. The following conventions are used
-for all C-style structs:
-
--if a struct has a corresponding init function, always call the init function when making a new one
--if a struct has a corresponding cleanup function, call it before the struct disappears to avoid memory leaks
--if a struct has a corresponding copy function, use the copy function instead of "=".
- The destination must also be inited already.
-
-
-4. Decoding
------------
-
-Decoding converts a PNG compressed image to a raw pixel buffer.
-
-Most documentation on using the decoder is at its declarations in the header
-above. For C, simple decoding can be done with functions such as
-lodepng_decode32, and more advanced decoding can be done with the struct
-LodePNGState and lodepng_decode. For C++, all decoding can be done with the
-various lodepng::decode functions, and lodepng::State can be used for advanced
-features.
-
-When using the LodePNGState, it uses the following fields for decoding:
-*) LodePNGInfo info_png: it stores extra information about the PNG (the input) in here
-*) LodePNGColorMode info_raw: here you can say what color mode of the raw image (the output) you want to get
-*) LodePNGDecoderSettings decoder: you can specify a few extra settings for the decoder to use
-
-LodePNGInfo info_png
---------------------
-
-After decoding, this contains extra information of the PNG image, except the actual
-pixels, width and height because these are already gotten directly from the decoder
-functions.
-
-It contains for example the original color type of the PNG image, text comments,
-suggested background color, etc... More details about the LodePNGInfo struct are
-at its declaration documentation.
-
-LodePNGColorMode info_raw
--------------------------
-
-When decoding, here you can specify which color type you want
-the resulting raw image to be. If this is different from the colortype of the
-PNG, then the decoder will automatically convert the result. This conversion
-always works, except if you want it to convert a color PNG to greyscale or to
-a palette with missing colors.
-
-By default, 32-bit color is used for the result.
-
-LodePNGDecoderSettings decoder
-------------------------------
-
-The settings can be used to ignore the errors created by invalid CRC and Adler32
-chunks, and to disable the decoding of tEXt chunks.
-
-There's also a setting color_convert, true by default. If false, no conversion
-is done, the resulting data will be as it was in the PNG (after decompression)
-and you'll have to puzzle the colors of the pixels together yourself using the
-color type information in the LodePNGInfo.
-
-
-5. Encoding
------------
-
-Encoding converts a raw pixel buffer to a PNG compressed image.
-
-Most documentation on using the encoder is at its declarations in the header
-above. For C, simple encoding can be done with functions such as
-lodepng_encode32, and more advanced decoding can be done with the struct
-LodePNGState and lodepng_encode. For C++, all encoding can be done with the
-various lodepng::encode functions, and lodepng::State can be used for advanced
-features.
-
-Like the decoder, the encoder can also give errors. However it gives less errors
-since the encoder input is trusted, the decoder input (a PNG image that could
-be forged by anyone) is not trusted.
-
-When using the LodePNGState, it uses the following fields for encoding:
-*) LodePNGInfo info_png: here you specify how you want the PNG (the output) to be.
-*) LodePNGColorMode info_raw: here you say what color type of the raw image (the input) has
-*) LodePNGEncoderSettings encoder: you can specify a few settings for the encoder to use
-
-LodePNGInfo info_png
---------------------
-
-When encoding, you use this the opposite way as when decoding: for encoding,
-you fill in the values you want the PNG to have before encoding. By default it's
-not needed to specify a color type for the PNG since it's automatically chosen,
-but it's possible to choose it yourself given the right settings.
-
-The encoder will not always exactly match the LodePNGInfo struct you give,
-it tries as close as possible. Some things are ignored by the encoder. The
-encoder uses, for example, the following settings from it when applicable:
-colortype and bitdepth, text chunks, time chunk, the color key, the palette, the
-background color, the interlace method, unknown chunks, ...
-
-When encoding to a PNG with colortype 3, the encoder will generate a PLTE chunk.
-If the palette contains any colors for which the alpha channel is not 255 (so
-there are translucent colors in the palette), it'll add a tRNS chunk.
-
-LodePNGColorMode info_raw
--------------------------
-
-You specify the color type of the raw image that you give to the input here,
-including a possible transparent color key and palette you happen to be using in
-your raw image data.
-
-By default, 32-bit color is assumed, meaning your input has to be in RGBA
-format with 4 bytes (uint8_ts) per pixel.
-
-LodePNGEncoderSettings encoder
-------------------------------
-
-The following settings are supported (some are in sub-structs):
-*) auto_convert: when this option is enabled, the encoder will
-automatically choose the smallest possible color mode (including color key) that
-can encode the colors of all pixels without information loss.
-*) btype: the block type for LZ77. 0 = uncompressed, 1 = fixed huffman tree,
-   2 = dynamic huffman tree (best compression). Should be 2 for proper
-   compression.
-*) use_lz77: whether or not to use LZ77 for compressed block types. Should be
-   true for proper compression.
-*) windowsize: the window size used by the LZ77 encoder (1 - 32768). Has value
-   2048 by default, but can be set to 32768 for better, but slow, compression.
-*) force_palette: if colortype is 2 or 6, you can make the encoder write a PLTE
-   chunk if force_palette is true. This can used as suggested palette to convert
-   to by viewers that don't support more than 256 colors (if those still exist)
-*) add_id: add text chunk "Encoder: LodePNG <version>" to the image.
-*) text_compression: default 1. If 1, it'll store texts as zTXt instead of tEXt chunks.
-  zTXt chunks use zlib compression on the text. This gives a smaller result on
-  large texts but a larger result on small texts (such as a single program name).
-  It's all tEXt or all zTXt though, there's no separate setting per text yet.
-
-
-6. color conversions
---------------------
-
-An important thing to note about LodePNG, is that the color type of the PNG, and
-the color type of the raw image, are completely independent. By default, when
-you decode a PNG, you get the result as a raw image in the color type you want,
-no matter whether the PNG was encoded with a palette, greyscale or RGBA color.
-And if you encode an image, by default LodePNG will automatically choose the PNG
-color type that gives good compression based on the values of colors and amount
-of colors in the image. It can be configured to let you control it instead as
-well, though.
-
-To be able to do this, LodePNG does conversions from one color mode to another.
-It can convert from almost any color type to any other color type, except the
-following conversions: RGB to greyscale is not supported, and converting to a
-palette when the palette doesn't have a required color is not supported. This is
-not supported on purpose: this is information loss which requires a color
-reduction algorithm that is beyong the scope of a PNG encoder (yes, RGB to grey
-is easy, but there are multiple ways if you want to give some channels more
-weight).
-
-By default, when decoding, you get the raw image in 32-bit RGBA or 24-bit RGB
-color, no matter what color type the PNG has. And by default when encoding,
-LodePNG automatically picks the best color model for the output PNG, and expects
-the input image to be 32-bit RGBA or 24-bit RGB. So, unless you want to control
-the color format of the images yourself, you can skip this chapter.
-
-6.1. PNG color types
---------------------
-
-A PNG image can have many color types, ranging from 1-bit color to 64-bit color,
-as well as palettized color modes. After the zlib decompression and unfiltering
-in the PNG image is done, the raw pixel data will have that color type and thus
-a certain amount of bits per pixel. If you want the output raw image after
-decoding to have another color type, a conversion is done by LodePNG.
-
-The PNG specification gives the following color types:
-
-0: greyscale, bit depths 1, 2, 4, 8, 16
-2: RGB, bit depths 8 and 16
-3: palette, bit depths 1, 2, 4 and 8
-4: greyscale with alpha, bit depths 8 and 16
-6: RGBA, bit depths 8 and 16
-
-Bit depth is the amount of bits per pixel per color channel. So the total amount
-of bits per pixel is: amount of channels * bitdepth.
-
-6.2. color conversions
-----------------------
-
-As explained in the sections about the encoder and decoder, you can specify
-color types and bit depths in info_png and info_raw to change the default
-behaviour.
-
-If, when decoding, you want the raw image to be something else than the default,
-you need to set the color type and bit depth you want in the LodePNGColorMode,
-or the parameters colortype and bitdepth of the simple decoding function.
-
-If, when encoding, you use another color type than the default in the raw input
-image, you need to specify its color type and bit depth in the LodePNGColorMode
-of the raw image, or use the parameters colortype and bitdepth of the simple
-encoding function.
-
-If, when encoding, you don't want LodePNG to choose the output PNG color type
-but control it yourself, you need to set auto_convert in the encoder settings
-to false, and specify the color type you want in the LodePNGInfo of the
-encoder (including palette: it can generate a palette if auto_convert is true,
-otherwise not).
-
-If the input and output color type differ (whether user chosen or auto chosen),
-LodePNG will do a color conversion, which follows the rules below, and may
-sometimes result in an error.
-
-To avoid some confusion:
--the decoder converts from PNG to raw image
--the encoder converts from raw image to PNG
--the colortype and bitdepth in LodePNGColorMode info_raw, are those of the raw image
--the colortype and bitdepth in the color field of LodePNGInfo info_png, are those of the PNG
--when encoding, the color type in LodePNGInfo is ignored if auto_convert
- is enabled, it is automatically generated instead
--when decoding, the color type in LodePNGInfo is set by the decoder to that of the original
- PNG image, but it can be ignored since the raw image has the color type you requested instead
--if the color type of the LodePNGColorMode and PNG image aren't the same, a conversion
- between the color types is done if the color types are supported. If it is not
- supported, an error is returned. If the types are the same, no conversion is done.
--even though some conversions aren't supported, LodePNG supports loading PNGs from any
- colortype and saving PNGs to any colortype, sometimes it just requires preparing
- the raw image correctly before encoding.
--both encoder and decoder use the same color converter.
-
-Non supported color conversions:
--color to greyscale: no error is thrown, but the result will look ugly because
-only the red channel is taken
--anything to palette when that palette does not have that color in it: in this
-case an error is thrown
-
-Supported color conversions:
--anything to 8-bit RGB, 8-bit RGBA, 16-bit RGB, 16-bit RGBA
--any grey or grey+alpha, to grey or grey+alpha
--anything to a palette, as long as the palette has the requested colors in it
--removing alpha channel
--higher to smaller bitdepth, and vice versa
-
-If you want no color conversion to be done (e.g. for speed or control):
--In the encoder, you can make it save a PNG with any color type by giving the
-raw color mode and LodePNGInfo the same color mode, and setting auto_convert to
-false.
--In the decoder, you can make it store the pixel data in the same color type
-as the PNG has, by setting the color_convert setting to false. Settings in
-info_raw are then ignored.
-
-The function lodepng_convert does the color conversion. It is available in the
-interface but normally isn't needed since the encoder and decoder already call
-it.
-
-6.3. padding bits
------------------
-
-In the PNG file format, if a less than 8-bit per pixel color type is used and the scanlines
-have a bit amount that isn't a multiple of 8, then padding bits are used so that each
-scanline starts at a fresh byte. But that is NOT true for the LodePNG raw input and output.
-The raw input image you give to the encoder, and the raw output image you get from the decoder
-will NOT have these padding bits, e.g. in the case of a 1-bit image with a width
-of 7 pixels, the first pixel of the second scanline will the the 8th bit of the first byte,
-not the first bit of a new byte.
-
-6.4. A note about 16-bits per channel and endianness
-----------------------------------------------------
-
-LodePNG uses uint8_t arrays for 16-bit per channel colors too, just like
-for any other color format. The 16-bit values are stored in big endian (most
-significant byte first) in these arrays. This is the opposite order of the
-little endian used by x86 CPU's.
-
-LodePNG always uses big endian because the PNG file format does so internally.
-Conversions to other formats than PNG uses internally are not supported by
-LodePNG on purpose, there are myriads of formats, including endianness of 16-bit
-colors, the order in which you store R, G, B and A, and so on. Supporting and
-converting to/from all that is outside the scope of LodePNG.
-
-This may mean that, depending on your use case, you may want to convert the big
-endian output of LodePNG to little endian with a for loop. This is certainly not
-always needed, many applications and libraries support big endian 16-bit colors
-anyway, but it means you cannot simply cast the uint8_t* buffer to an
-unsigned short* buffer on x86 CPUs.
-
-
-7. error values
----------------
-
-All functions in LodePNG that return an error code, return 0 if everything went
-OK, or a non-zero code if there was an error.
-
-The meaning of the LodePNG error values can be retrieved with the function
-lodepng_error_text: given the numerical error code, it returns a description
-of the error in English as a string.
-
-Check the implementation of lodepng_error_text to see the meaning of each code.
-
-
-8. chunks and PNG editing
--------------------------
-
-If you want to add extra chunks to a PNG you encode, or use LodePNG for a PNG
-editor that should follow the rules about handling of unknown chunks, or if your
-program is able to read other types of chunks than the ones handled by LodePNG,
-then that's possible with the chunk functions of LodePNG.
-
-A PNG chunk has the following layout:
-
-4 bytes length
-4 bytes type name
-length bytes data
-4 bytes CRC
-
-8.1. iterating through chunks
------------------------------
-
-If you have a buffer containing the PNG image data, then the first chunk (the
-IHDR chunk) starts at byte number 8 of that buffer. The first 8 bytes are the
-signature of the PNG and are not part of a chunk. But if you start at byte 8
-then you have a chunk, and can check the following things of it.
-
-NOTE: none of these functions check for memory buffer boundaries. To avoid
-exploits, always make sure the buffer contains all the data of the chunks.
-When using lodepng_chunk_next, make sure the returned value is within the
-allocated memory.
-
-unsigned lodepng_chunk_length(const uint8_t* chunk):
-
-Get the length of the chunk's data. The total chunk length is this length + 12.
-
-void lodepng_chunk_type(char type[5], const uint8_t* chunk):
-uint8_t lodepng_chunk_type_equals(const uint8_t* chunk, const char* type):
-
-Get the type of the chunk or compare if it's a certain type
-
-uint8_t lodepng_chunk_critical(const uint8_t* chunk):
-uint8_t lodepng_chunk_private(const uint8_t* chunk):
-uint8_t lodepng_chunk_safetocopy(const uint8_t* chunk):
-
-Check if the chunk is critical in the PNG standard (only IHDR, PLTE, IDAT and IEND are).
-Check if the chunk is private (public chunks are part of the standard, private ones not).
-Check if the chunk is safe to copy. If it's not, then, when modifying data in a critical
-chunk, unsafe to copy chunks of the old image may NOT be saved in the new one if your
-program doesn't handle that type of unknown chunk.
-
-uint8_t* lodepng_chunk_data(uint8_t* chunk):
-const uint8_t* lodepng_chunk_data_const(const uint8_t* chunk):
-
-Get a pointer to the start of the data of the chunk.
-
-unsigned lodepng_chunk_check_crc(const uint8_t* chunk):
-void lodepng_chunk_generate_crc(uint8_t* chunk):
-
-Check if the crc is correct or generate a correct one.
-
-uint8_t* lodepng_chunk_next(uint8_t* chunk):
-const uint8_t* lodepng_chunk_next_const(const uint8_t* chunk):
-
-Iterate to the next chunk. This works if you have a buffer with consecutive chunks. Note that these
-functions do no boundary checking of the allocated data whatsoever, so make sure there is enough
-data available in the buffer to be able to go to the next chunk.
-
-unsigned lodepng_chunk_append(uint8_t** out, size_t* outlength, const uint8_t* chunk):
-unsigned lodepng_chunk_create(uint8_t** out, size_t* outlength, unsigned length,
-                              const char* type, const uint8_t* data):
-
-These functions are used to create new chunks that are appended to the data in *out that has
-length *outlength. The append function appends an existing chunk to the new data. The create
-function creates a new chunk with the given parameters and appends it. Type is the 4-letter
-name of the chunk.
-
-8.2. chunks in info_png
------------------------
-
-The LodePNGInfo struct contains fields with the unknown chunk in it. It has 3
-buffers (each with size) to contain 3 types of unknown chunks:
-the ones that come before the PLTE chunk, the ones that come between the PLTE
-and the IDAT chunks, and the ones that come after the IDAT chunks.
-It's necessary to make the distionction between these 3 cases because the PNG
-standard forces to keep the ordering of unknown chunks compared to the critical
-chunks, but does not force any other ordering rules.
-
-info_png.unknown_chunks_data[0] is the chunks before PLTE
-info_png.unknown_chunks_data[1] is the chunks after PLTE, before IDAT
-info_png.unknown_chunks_data[2] is the chunks after IDAT
-
-The chunks in these 3 buffers can be iterated through and read by using the same
-way described in the previous subchapter.
-
-When using the decoder to decode a PNG, you can make it store all unknown chunks
-if you set the option settings.remember_unknown_chunks to 1. By default, this
-option is off (0).
-
-The encoder will always encode unknown chunks that are stored in the info_png.
-If you need it to add a particular chunk that isn't known by LodePNG, you can
-use lodepng_chunk_append or lodepng_chunk_create to the chunk data in
-info_png.unknown_chunks_data[x].
-
-Chunks that are known by LodePNG should not be added in that way. E.g. to make
-LodePNG add a bKGD chunk, set background_defined to true and add the correct
-parameters there instead.
-
-
-9. compiler support
--------------------
-
-No libraries other than the current standard C library are needed to compile
-LodePNG. For the C++ version, only the standard C++ library is needed on top.
-Add the files lodepng.c(pp) and lodepng.h to your project, include
-lodepng.h where needed, and your program can read/write PNG files.
-
-It is compatible with C90 and up, and C++03 and up.
-
-If performance is important, use optimization when compiling! For both the
-encoder and decoder, this makes a large difference.
-
-Make sure that LodePNG is compiled with the same compiler of the same version
-and with the same settings as the rest of the program, or the interfaces with
-std::vectors and std::strings in C++ can be incompatible.
-
-CHAR_BITS must be 8 or higher, because LodePNG uses uint8_ts for octets.
-
-*) gcc and g++
-
-LodePNG is developed in gcc so this compiler is natively supported. It gives no
-warnings with compiler options "-Wall -Wextra -pedantic -ansi", with gcc and g++
-version 4.7.1 on Linux, 32-bit and 64-bit.
-
-*) Clang
-
-Fully supported and warning-free.
-
-*) Mingw
-
-The Mingw compiler (a port of gcc for Windows) should be fully supported by
-LodePNG.
-
-*) Visual Studio and Visual C++ Express Edition
-
-LodePNG should be warning-free with warning level W4. Two warnings were disabled
-with pragmas though: warning 4244 about implicit conversions, and warning 4996
-where it wants to use a non-standard function fopen_s instead of the standard C
-fopen.
-
-Visual Studio may want "stdafx.h" files to be included in each source file and
-give an error "unexpected end of file while looking for precompiled header".
-This is not standard C++ and will not be added to the stock LodePNG. You can
-disable it for lodepng.cpp only by right clicking it, Properties, C/C++,
-Precompiled Headers, and set it to Not Using Precompiled Headers there.
-
-NOTE: Modern versions of VS should be fully supported, but old versions, e.g.
-VS6, are not guaranteed to work.
-
-*) Compilers on Macintosh
-
-LodePNG has been reported to work both with gcc and LLVM for Macintosh, both for
-C and C++.
-
-*) Other Compilers
-
-If you encounter problems on any compilers, feel free to let me know and I may
-try to fix it if the compiler is modern and standards complient.
-
-
-10. examples
-------------
-
-This decoder example shows the most basic usage of LodePNG. More complex
-examples can be found on the LodePNG website.
-
-10.1. decoder C++ example
--------------------------
-
-#include "lodepng.h"
-#include <iostream>
-
-int main(int argc, char *argv[])
-{
-  const char* filename = argc > 1 ? argv[1] : "test.png";
-
-  //load and decode
-  std::vector<uint8_t> image;
-  unsigned width, height;
-  unsigned error = lodepng::decode(image, width, height, filename);
-
-  //if there's an error, display it
-  if(error) std::cout << "decoder error " << error << ": " << lodepng_error_text(error) << std::endl;
-
-  //the pixels are now in the vector "image", 4 bytes per pixel, ordered RGBARGBA..., use it as texture, draw it, ...
-}
-
-10.2. decoder C example
------------------------
-
-#include "lodepng.h"
-
-int main(int argc, char *argv[])
-{
-  unsigned error;
-  uint8_t* image;
-  size_t width, height;
-  const char* filename = argc > 1 ? argv[1] : "test.png";
-
-  error = lodepng_decode32_file(&image, &width, &height, filename);
-
-  if(error) printf("decoder error %u: %s\n", error, lodepng_error_text(error));
-
-  / * use image here * /
-
-  free(image);
-  return 0;
-}
-
-11. state settings reference
-----------------------------
-
-A quick reference of some settings to set on the LodePNGState
-
-For decoding:
-
-state.decoder.zlibsettings.ignore_adler32: ignore ADLER32 checksums
-state.decoder.zlibsettings.custom_...: use custom inflate function
-state.decoder.ignore_crc: ignore CRC checksums
-state.decoder.color_convert: convert internal PNG color to chosen one
-state.decoder.read_text_chunks: whether to read in text metadata chunks
-state.decoder.remember_unknown_chunks: whether to read in unknown chunks
-state.info_raw.colortype: desired color type for decoded image
-state.info_raw.bitdepth: desired bit depth for decoded image
-state.info_raw....: more color settings, see struct LodePNGColorMode
-state.info_png....: no settings for decoder but ouput, see struct LodePNGInfo
-
-For encoding:
-
-state.encoder.zlibsettings.btype: disable compression by setting it to 0
-state.encoder.zlibsettings.use_lz77: use LZ77 in compression
-state.encoder.zlibsettings.windowsize: tweak LZ77 windowsize
-state.encoder.zlibsettings.minmatch: tweak min LZ77 length to match
-state.encoder.zlibsettings.nicematch: tweak LZ77 match where to stop searching
-state.encoder.zlibsettings.lazymatching: try one more LZ77 matching
-state.encoder.zlibsettings.custom_...: use custom deflate function
-state.encoder.auto_convert: choose optimal PNG color type, if 0 uses info_png
-state.encoder.filter_palette_zero: PNG filter strategy for palette
-state.encoder.filter_strategy: PNG filter strategy to encode with
-state.encoder.force_palette: add palette even if not encoding to one
-state.encoder.add_id: add LodePNG identifier and version as a text chunk
-state.encoder.text_compression: use compressed text chunks for metadata
-state.info_raw.colortype: color type of raw input image you provide
-state.info_raw.bitdepth: bit depth of raw input image you provide
-state.info_raw: more color settings, see struct LodePNGColorMode
-state.info_png.color.colortype: desired color type if auto_convert is false
-state.info_png.color.bitdepth: desired bit depth if auto_convert is false
-state.info_png.color....: more color settings, see struct LodePNGColorMode
-state.info_png....: more PNG related settings, see struct LodePNGInfo
-
-
-12. changes
------------
-
-The version number of LodePNG is the date of the change given in the format
-yyyymmdd.
-
-Some changes aren't backwards compatible. Those are indicated with a (!)
-symbol.
-
-*) 18 apr 2016: Changed qsort to custom stable sort (for platforms w/o qsort).
-*) 09 apr 2016: Fixed colorkey usage detection, and better file loading (within
-   the limits of pure C90).
-*) 08 dec 2015: Made load_file function return error if file can't be opened.
-*) 24 okt 2015: Bugfix with decoding to palette output.
-*) 18 apr 2015: Boundary PM instead of just package-merge for faster encoding.
-*) 23 aug 2014: Reduced needless memory usage of decoder.
-*) 28 jun 2014: Removed fix_png setting, always support palette OOB for
-    simplicity. Made ColorProfile public.
-*) 09 jun 2014: Faster encoder by fixing hash bug and more zeros optimization.
-*) 22 dec 2013: Power of two windowsize required for optimization.
-*) 15 apr 2013: Fixed bug with LAC_ALPHA and color key.
-*) 25 mar 2013: Added an optional feature to ignore some PNG errors (fix_png).
-*) 11 mar 2013 (!): Bugfix with custom free. Changed from "my" to "lodepng_"
-    prefix for the custom allocators and made it possible with a new #define to
-    use custom ones in your project without needing to change lodepng's code.
-*) 28 jan 2013: Bugfix with color key.
-*) 27 okt 2012: Tweaks in text chunk keyword length error handling.
-*) 8 okt 2012 (!): Added new filter strategy (entropy) and new auto color mode.
-    (no palette). Better deflate tree encoding. New compression tweak settings.
-    Faster color conversions while decoding. Some internal cleanups.
-*) 23 sep 2012: Reduced warnings in Visual Studio a little bit.
-*) 1 sep 2012 (!): Removed #define's for giving custom (de)compression functions
-    and made it work with function pointers instead.
-*) 23 jun 2012: Added more filter strategies. Made it easier to use custom alloc
-    and free functions and toggle #defines from compiler flags. Small fixes.
-*) 6 may 2012 (!): Made plugging in custom zlib/deflate functions more flexible.
-*) 22 apr 2012 (!): Made interface more consistent, renaming a lot. Removed
-    redundant C++ codec classes. Reduced amount of structs. Everything changed,
-    but it is cleaner now imho and functionality remains the same. Also fixed
-    several bugs and shrunk the implementation code. Made new samples.
-*) 6 nov 2011 (!): By default, the encoder now automatically chooses the best
-    PNG color model and bit depth, based on the amount and type of colors of the
-    raw image. For this, autoLeaveOutAlphaChannel replaced by auto_choose_color.
-*) 9 okt 2011: simpler hash chain implementation for the encoder.
-*) 8 sep 2011: lz77 encoder lazy matching instead of greedy matching.
-*) 23 aug 2011: tweaked the zlib compression parameters after benchmarking.
-    A bug with the PNG filtertype heuristic was fixed, so that it chooses much
-    better ones (it's quite significant). A setting to do an experimental, slow,
-    brute force search for PNG filter types is added.
-*) 17 aug 2011 (!): changed some C zlib related function names.
-*) 16 aug 2011: made the code less wide (max 120 characters per line).
-*) 17 apr 2011: code cleanup. Bugfixes. Convert low to 16-bit per sample colors.
-*) 21 feb 2011: fixed compiling for C90. Fixed compiling with sections disabled.
-*) 11 dec 2010: encoding is made faster, based on suggestion by Peter Eastman
-    to optimize long sequences of zeros.
-*) 13 nov 2010: added LodePNG_InfoColor_hasPaletteAlpha and
-    LodePNG_InfoColor_canHaveAlpha functions for convenience.
-*) 7 nov 2010: added LodePNG_error_text function to get error code description.
-*) 30 okt 2010: made decoding slightly faster
-*) 26 okt 2010: (!) changed some C function and struct names (more consistent).
-     Reorganized the documentation and the declaration order in the header.
-*) 08 aug 2010: only changed some comments and external samples.
-*) 05 jul 2010: fixed bug thanks to warnings in the new gcc version.
-*) 14 mar 2010: fixed bug where too much memory was allocated for char buffers.
-*) 02 sep 2008: fixed bug where it could create empty tree that linux apps could
-    read by ignoring the problem but windows apps couldn't.
-*) 06 jun 2008: added more error checks for out of memory cases.
-*) 26 apr 2008: added a few more checks here and there to ensure more safety.
-*) 06 mar 2008: crash with encoding of strings fixed
-*) 02 feb 2008: support for international text chunks added (iTXt)
-*) 23 jan 2008: small cleanups, and #defines to divide code in sections
-*) 20 jan 2008: support for unknown chunks allowing using LodePNG for an editor.
-*) 18 jan 2008: support for tIME and pHYs chunks added to encoder and decoder.
-*) 17 jan 2008: ability to encode and decode compressed zTXt chunks added
-    Also various fixes, such as in the deflate and the padding bits code.
-*) 13 jan 2008: Added ability to encode Adam7-interlaced images. Improved
-    filtering code of encoder.
-*) 07 jan 2008: (!) changed LodePNG to use ISO C90 instead of C++. A
-    C++ wrapper around this provides an interface almost identical to before.
-    Having LodePNG be pure ISO C90 makes it more portable. The C and C++ code
-    are together in these files but it works both for C and C++ compilers.
-*) 29 dec 2007: (!) changed most integer types to unsigned int + other tweaks
-*) 30 aug 2007: bug fixed which makes this Borland C++ compatible
-*) 09 aug 2007: some VS2005 warnings removed again
-*) 21 jul 2007: deflate code placed in new namespace separate from zlib code
-*) 08 jun 2007: fixed bug with 2- and 4-bit color, and small interlaced images
-*) 04 jun 2007: improved support for Visual Studio 2005: crash with accessing
-    invalid std::vector element [0] fixed, and level 3 and 4 warnings removed
-*) 02 jun 2007: made the encoder add a tag with version by default
-*) 27 may 2007: zlib and png code separated (but still in the same file),
-    simple encoder/decoder functions added for more simple usage cases
-*) 19 may 2007: minor fixes, some code cleaning, new error added (error 69),
-    moved some examples from here to lodepng_examples.cpp
-*) 12 may 2007: palette decoding bug fixed
-*) 24 apr 2007: changed the license from BSD to the zlib license
-*) 11 mar 2007: very simple addition: ability to encode bKGD chunks.
-*) 04 mar 2007: (!) tEXt chunk related fixes, and support for encoding
-    palettized PNG images. Plus little interface change with palette and texts.
-*) 03 mar 2007: Made it encode dynamic Huffman shorter with repeat codes.
-    Fixed a bug where the end code of a block had length 0 in the Huffman tree.
-*) 26 feb 2007: Huffman compression with dynamic trees (BTYPE 2) now implemented
-    and supported by the encoder, resulting in smaller PNGs at the output.
-*) 27 jan 2007: Made the Adler-32 test faster so that a timewaste is gone.
-*) 24 jan 2007: gave encoder an error interface. Added color conversion from any
-    greyscale type to 8-bit greyscale with or without alpha.
-*) 21 jan 2007: (!) Totally changed the interface. It allows more color types
-    to convert to and is more uniform. See the manual for how it works now.
-*) 07 jan 2007: Some cleanup & fixes, and a few changes over the last days:
-    encode/decode custom tEXt chunks, separate classes for zlib & deflate, and
-    at last made the decoder give errors for incorrect Adler32 or Crc.
-*) 01 jan 2007: Fixed bug with encoding PNGs with less than 8 bits per channel.
-*) 29 dec 2006: Added support for encoding images without alpha channel, and
-    cleaned out code as well as making certain parts faster.
-*) 28 dec 2006: Added "Settings" to the encoder.
-*) 26 dec 2006: The encoder now does LZ77 encoding and produces much smaller files now.
-    Removed some code duplication in the decoder. Fixed little bug in an example.
-*) 09 dec 2006: (!) Placed output parameters of public functions as first parameter.
-    Fixed a bug of the decoder with 16-bit per color.
-*) 15 okt 2006: Changed documentation structure
-*) 09 okt 2006: Encoder class added. It encodes a valid PNG image from the
-    given image buffer, however for now it's not compressed.
-*) 08 sep 2006: (!) Changed to interface with a Decoder class
-*) 30 jul 2006: (!) LodePNG_InfoPng , width and height are now retrieved in different
-    way. Renamed decodePNG to decodePNGGeneric.
-*) 29 jul 2006: (!) Changed the interface: image info is now returned as a
-    struct of type LodePNG::LodePNG_Info, instead of a vector, which was a bit clumsy.
-*) 28 jul 2006: Cleaned the code and added new error checks.
-    Corrected terminology "deflate" into "inflate".
-*) 23 jun 2006: Added SDL example in the documentation in the header, this
-    example allows easy debugging by displaying the PNG and its transparency.
-*) 22 jun 2006: (!) Changed way to obtain error value. Added
-    loadFile function for convenience. Made decodePNG32 faster.
-*) 21 jun 2006: (!) Changed type of info vector to unsigned.
-    Changed position of palette in info vector. Fixed an important bug that
-    happened on PNGs with an uncompressed block.
-*) 16 jun 2006: Internally changed unsigned into unsigned where
-    needed, and performed some optimizations.
-*) 07 jun 2006: (!) Renamed functions to decodePNG and placed them
-    in LodePNG namespace. Changed the order of the parameters. Rewrote the
-    documentation in the header. Renamed files to lodepng.cpp and lodepng.h
-*) 22 apr 2006: Optimized and improved some code
-*) 07 sep 2005: (!) Changed to std::vector interface
-*) 12 aug 2005: Initial release (C++, decoder only)
-
-
-13. contact information
------------------------
-
-Feel free to contact me with suggestions, problems, comments, ... concerning
-LodePNG. If you encounter a PNG image that doesn't work properly with this
-decoder, feel free to send it and I'll use it to find and fix the problem.
-
-My email address is (puzzle the account and domain together with an @ symbol):
-Domain: gmail dot com.
-Account: lode dot vandevenne.
-
-
-Copyright (c) 2005-2016 Lode Vandevenne
-*/