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Slightly better color array function

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Converting only once should be faster.
This commit is contained in:
Bim Overbohm 2013-06-27 12:31:16 +02:00
parent b187f05a16
commit 171ca9a657
1 changed files with 9 additions and 5 deletions
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14
src/Renderer_draw_gl.cpp
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@ -14,18 +14,22 @@ namespace Renderer {
void setColor4bArray(GLubyte* array, unsigned int color) void setColor4bArray(GLubyte* array, unsigned int color)
{ {
array[0] = (color & 0xff000000) / 0x1000000; array[0] = (color & 0xff000000) >> 24;
array[1] = (color & 0x00ff0000) / 0x10000; array[1] = (color & 0x00ff0000) >> 16;
array[2] = (color & 0x0000ff00) / 0x100; array[2] = (color & 0x0000ff00) >> 8;
array[3] = (color & 0x000000ff); array[3] = (color & 0x000000ff);
} }
void buildGLColorArray(GLubyte* ptr, unsigned int color, unsigned int vertCount) void buildGLColorArray(GLubyte* ptr, unsigned int color, unsigned int vertCount)
{ {
//convert color from ???? to RGBA?
unsigned int colorRGBA;
setColor4bArray((GLubyte *)&colorRGBA, color);
//write color to unsigned int array
GLuint * uiPtr = (GLuint *)ptr;
for(unsigned int i = 0; i < vertCount; i++) for(unsigned int i = 0; i < vertCount; i++)
{ {
setColor4bArray(ptr, color); uiPtr[i] = colorRGBA;
ptr += 4;
} }
} }