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Drop usage of GL_QUADS, in favor of GL_TRIANGLES

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Valeriano A.R.
2014-07-05 21:25:28 +02:00
committed by Valeriano A.R
parent ef228d14d9
commit 5ebb8678c2
2 changed files with 8 additions and 9 deletions
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14
GameLib/Draw.c
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@@ -149,6 +149,10 @@ int Draw_Init(int width,int height,char *title,int pfps,int fps){
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
// Initialize the triangle array
_quadArray=QuadArray2D_Create(400);
@@ -407,10 +411,6 @@ void Draw_Flush(){
// Draw the quad array
glBindTexture(GL_TEXTURE_2D, _currentImg->tex);
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
glColorPointer( 4, GL_FLOAT, Vertex2D_Length*sizeof(float),
(GLvoid *)(_quadArray->vertexData+4) );
glTexCoordPointer( 2, GL_FLOAT, Vertex2D_Length*sizeof(float),
@@ -418,11 +418,7 @@ void Draw_Flush(){
glVertexPointer( 2, GL_FLOAT, Vertex2D_Length*sizeof(float),
(GLvoid *)(_quadArray->vertexData) );
glDrawArrays(GL_QUADS,0,_quadArray->nVertex);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDrawArrays(GL_TRIANGLES,0,_quadArray->nVertex);
// Empty it
QuadArray2D_Clean(_quadArray);

3
GameLib/QuadArray2D.c
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@@ -69,7 +69,10 @@ void QuadArray2D_AddQuad(QuadArray2D quadArray,
// 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);
}