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GBA Video: Optimize sprite postprocessing

This commit is contained in:
Vicki Pfau 2018-08-11 12:52:51 -07:00
parent c5ff781ed6
commit e42dc2b41a
1 changed files with 21 additions and 6 deletions
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27
src/gba/renderers/software-obj.c
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@ -345,6 +345,9 @@ void GBAVideoSoftwareRendererPostprocessSprite(struct GBAVideoSoftwareRenderer*
int objwinSlowPath = GBARegisterDISPCNTIsObjwinEnable(renderer->dispcnt);
bool objwinDisable = false;
bool objwinOnly = false;
priority <<= OFFSET_PRIORITY;
if (objwinSlowPath) {
objwinDisable = !GBAWindowControlIsObjEnable(renderer->objwin.packed);
objwinOnly = !objwinDisable && !GBAWindowControlIsObjEnable(renderer->currentWindow.packed);
@ -355,8 +358,11 @@ void GBAVideoSoftwareRendererPostprocessSprite(struct GBAVideoSoftwareRenderer*
if (objwinDisable) {
for (x = renderer->start; x < renderer->end; ++x, ++pixel) {
uint32_t color = renderer->spriteLayer[x] & ~FLAG_OBJWIN;
if (color >= FLAG_UNWRITTEN) {
continue;
}
uint32_t current = *pixel;
if ((color & FLAG_UNWRITTEN) != FLAG_UNWRITTEN && !(current & FLAG_OBJWIN) && (color & FLAG_PRIORITY) >> OFFSET_PRIORITY == priority) {
if (!(current & FLAG_OBJWIN) && (color & FLAG_PRIORITY) == priority) {
_compositeBlendObjwin(renderer, pixel, color | flags, current);
}
}
@ -364,8 +370,11 @@ void GBAVideoSoftwareRendererPostprocessSprite(struct GBAVideoSoftwareRenderer*
} else if (objwinOnly) {
for (x = renderer->start; x < renderer->end; ++x, ++pixel) {
uint32_t color = renderer->spriteLayer[x] & ~FLAG_OBJWIN;
if (color >= FLAG_UNWRITTEN) {
continue;
}
uint32_t current = *pixel;
if ((color & FLAG_UNWRITTEN) != FLAG_UNWRITTEN && (current & FLAG_OBJWIN) && (color & FLAG_PRIORITY) >> OFFSET_PRIORITY == priority) {
if ((current & FLAG_OBJWIN) && (color & FLAG_PRIORITY) == priority) {
_compositeBlendObjwin(renderer, pixel, color | flags, current);
}
}
@ -373,8 +382,11 @@ void GBAVideoSoftwareRendererPostprocessSprite(struct GBAVideoSoftwareRenderer*
} else {
for (x = renderer->start; x < renderer->end; ++x, ++pixel) {
uint32_t color = renderer->spriteLayer[x] & ~FLAG_OBJWIN;
uint32_t current = *pixel;
if ((color & FLAG_UNWRITTEN) != FLAG_UNWRITTEN && (color & FLAG_PRIORITY) >> OFFSET_PRIORITY == priority) {
if (color >= FLAG_UNWRITTEN) {
continue;
}
if ((color & FLAG_PRIORITY) == priority) {
uint32_t current = *pixel;
_compositeBlendObjwin(renderer, pixel, color | flags, current);
}
}
@ -385,8 +397,11 @@ void GBAVideoSoftwareRendererPostprocessSprite(struct GBAVideoSoftwareRenderer*
}
for (x = renderer->start; x < renderer->end; ++x, ++pixel) {
uint32_t color = renderer->spriteLayer[x] & ~FLAG_OBJWIN;
uint32_t current = *pixel;
if ((color & FLAG_UNWRITTEN) != FLAG_UNWRITTEN && (color & FLAG_PRIORITY) >> OFFSET_PRIORITY == priority) {
if (color >= FLAG_UNWRITTEN) {
continue;
}
if ((color & FLAG_PRIORITY) == priority) {
uint32_t current = *pixel;
_compositeBlendNoObjwin(renderer, pixel, color | flags, current);
}
}