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Small refactor of _composite

This commit is contained in:
Jeffrey Pfau 2013-11-05 21:57:24 -08:00
parent 818ce96d0d
commit e3dac089e7
1 changed files with 6 additions and 5 deletions
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11
src/gba/renderers/video-software.c
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@ -616,20 +616,21 @@ static void _composite(struct GBAVideoSoftwareRenderer* renderer, uint32_t* pixe
// The lower the number, the higher the priority, and sprites take precendence over backgrounds
// We want to do special processing if the color pixel is target 1, however
if (current & FLAG_UNWRITTEN) {
*pixel = color | (current & FLAG_OBJWIN);
color |= (current & FLAG_OBJWIN);
} else if ((color & FLAG_ORDER_MASK) < (current & FLAG_ORDER_MASK)) {
if (!(color & FLAG_TARGET_1) || !(current & FLAG_TARGET_2)) {
*pixel = color | FLAG_FINALIZED;
color |= FLAG_FINALIZED;
} else {
*pixel = _mix(renderer->bldb, current, renderer->blda, color) | FLAG_FINALIZED;
color = _mix(renderer->bldb, current, renderer->blda, color) | FLAG_FINALIZED;
}
} else {
if (current & FLAG_TARGET_1 && color & FLAG_TARGET_2) {
*pixel = _mix(renderer->blda, current, renderer->bldb, color) | FLAG_FINALIZED;
color = _mix(renderer->blda, current, renderer->bldb, color) | FLAG_FINALIZED;
} else {
*pixel = current | FLAG_FINALIZED;
color = current | FLAG_FINALIZED;
}
}
*pixel = color;
}
#define BACKGROUND_DRAW_PIXEL_16 \