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Save screenshoots on PNG format

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This commit is contained in:
Valeriano A.R.
2016-09-10 13:51:59 +02:00
committed by Valeriano A.R
parent 6818acdd4e
commit dfd4a5b77f
2 changed files with 71 additions and 28 deletions
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85
GameLib/Draw.c
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@@ -532,7 +532,7 @@ int Draw_LoopIteration() {
int idx = -1;
do {
idx++;
snprintf(strFile, 255, "shot-%04d.bmp", idx);
snprintf(strFile, 255, "shot-%04d.png", idx);
} while (access(strFile, F_OK) != -1);
Draw_SaveScreenshoot(strFile);
}
@@ -1027,39 +1027,22 @@ void Draw_DrawText(DrawFnt f, char *text, int x, int y) {
}
/////////////////////////////
// Draw_SaveScreenshoot
// Draw_SaveRGBAToBMP
//
//
void Draw_SaveScreenshoot(char *filename) {
#if USE_OpenGL
void Draw_SaveRGBAToBMP(char *filename, unsigned char *data, int width,
int height) {
SDL_Surface *surf;
unsigned char *image_line;
int i, half_height, line_size;
// Create the surface
surf = SDL_CreateRGBSurface(SDL_SWSURFACE, _width, _height, 32, 0, 0, 0, 0);
surf = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 32, 0, 0, 0, 0);
surf->format->Amask = 0xFF000000;
surf->format->Ashift = 24;
SDL_SetAlpha(surf, SDL_SRCALPHA, 255);
// Get the screenshot
SDL_LockSurface(surf);
glReadPixels(0, 0, _width, _height, GL_RGBA, GL_UNSIGNED_BYTE,
surf->pixels);
memcpy(surf->pixels, data, width * height * 4);
SDL_UnlockSurface(surf);
// Flip the image data
line_size = _width * 4;
half_height = _height / 2;
image_line = malloc(line_size);
for (i = 0; i < half_height; i++) {
memcpy(image_line, surf->pixels + i * line_size, line_size);
memcpy(surf->pixels + i * line_size,
surf->pixels + (_height - (i + 1)) * line_size, line_size);
memcpy(surf->pixels + (_height - (i + 1)) * line_size, image_line,
line_size);
}
// Swap RGB to BGR
Uint32 *ptr, *ptr_end;
ptr = (Uint32 *)surf->pixels;
@@ -1075,13 +1058,59 @@ void Draw_SaveScreenshoot(char *filename) {
}
// Save the image
if (EndsWith(filename, ".bmp") || EndsWith(filename, ".BMP")) {
SDL_SaveBMP(surf, filename);
} else if (EndsWith(filename, ".png") || EndsWith(filename, ".PNG")) {
// FIXME: Save PNG
}
SDL_SaveBMP(surf, filename);
// Cleanup
SDL_FreeSurface(surf);
}
/////////////////////////////
// Draw_SaveRGBAToPNG
//
//
void Draw_SaveRGBAToPNG(char *filename, unsigned char *data, int width,
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_SaveScreenshoot
//
//
void Draw_SaveScreenshoot(char *filename) {
#if USE_OpenGL
unsigned char *pixelData;
unsigned char *image_line;
int i, half_height, line_size;
pixelData = malloc(_width * _height * 4);
glReadPixels(0, 0, _width, _height, GL_RGBA, GL_UNSIGNED_BYTE, pixelData);
// Flip the image data
line_size = _width * 4;
half_height = _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 + (_height - (i + 1)) * line_size, line_size);
memcpy(pixelData + (_height - (i + 1)) * line_size, image_line,
line_size);
}
// Save the image
if (EndsWith(filename, ".bmp") || EndsWith(filename, ".BMP")) {
Draw_SaveRGBAToBMP(filename, pixelData, _width, _height);
} else if (EndsWith(filename, ".png") || EndsWith(filename, ".PNG")) {
Draw_SaveRGBAToPNG(filename, pixelData, _width, _height);
}
// Cleanup
free(pixelData);
#endif
}

14
GameLib/Draw.h
View File

@@ -141,6 +141,20 @@ DrawFnt Draw_LoadFont(char *fichero, int min, int max);
// Draws text using a font
void Draw_DrawText(DrawFnt f, char *text, int x, int y);
/////////////////////////////
// Draw_SaveRGBAToBMP
//
//
void Draw_SaveRGBAToBMP(char *filename, unsigned char *data, int width,
int height);
/////////////////////////////
// Draw_SaveRGBAToPNG
//
//
void Draw_SaveRGBAToPNG(char *filename, unsigned char *data, int width,
int height);
/////////////////////////////
// Draw_SaveScreenshoot
//