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Variant and 256-color transformed sprites

This commit is contained in:
Jeffrey Pfau 2013-05-01 23:54:39 -07:00
parent 0423656ad8
commit 3b3f55b14c
1 changed files with 30 additions and 14 deletions
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44
src/gba/renderers/video-software.c
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@ -622,6 +622,25 @@ static const int _objSizes[32] = {
SPRITE_DRAW_PIXEL_ ## DEPTH ## _ ## TYPE(inX); \
}
#define SPRITE_TRANSFORMED_LOOP(DEPTH, TYPE) \
for (int outX = x >= start ? x : start; outX < x + totalWidth && outX < end; ++outX) { \
if (renderer->flags[outX].isSprite) { \
continue; \
} \
int inY = y - sprite->y; \
int inX = outX - x; \
int localX = ((mat->a * (inX - (totalWidth >> 1)) + mat->b * (inY - (totalHeight >> 1))) >> 8) + (width >> 1); \
int localY = ((mat->c * (inX - (totalWidth >> 1)) + mat->d * (inY - (totalHeight >> 1))) >> 8) + (height >> 1); \
\
if (localX < 0 || localX >= width || localY < 0 || localY >= height) { \
continue; \
} \
\
SPRITE_YBASE_ ## DEPTH(localY); \
SPRITE_XBASE_ ## DEPTH(localX); \
SPRITE_DRAW_PIXEL_ ## DEPTH ## _ ## TYPE(localX); \
}
#define SPRITE_XBASE_16(localX) unsigned xBase = (localX & ~0x7) * 4 + ((localX >> 1) & 2);
#define SPRITE_YBASE_16(localY) unsigned yBase = (localY & ~0x7) * (renderer->dispcnt.objCharacterMapping ? width >> 1 : 0x80) + (localY & 0x7) * 4;
@ -718,22 +737,19 @@ static void _drawTransformedSprite(struct GBAVideoSoftwareRenderer* renderer, st
int x = sprite->x;
unsigned charBase = BASE_TILE + sprite->tile * 0x20;
struct GBAOAMMatrix* mat = &renderer->d.oam->mat[sprite->matIndex];
for (int outX = x >= start ? x : start; outX < x + totalWidth && outX < end; ++outX) {
if (renderer->flags[outX].isSprite) {
continue;
int variant = renderer->blendEffect == BLEND_NONE || renderer->blendEffect == BLEND_ALPHA || !renderer->target1Obj;
if (!sprite->multipalette) {
if (!variant) {
SPRITE_TRANSFORMED_LOOP(16, NORMAL);
} else {
SPRITE_TRANSFORMED_LOOP(16, VARIANT);
}
int inY = y - sprite->y;
int inX = outX - x;
int localX = ((mat->a * (inX - (totalWidth >> 1)) + mat->b * (inY - (totalHeight >> 1))) >> 8) + (width >> 1);
int localY = ((mat->c * (inX - (totalWidth >> 1)) + mat->d * (inY - (totalHeight >> 1))) >> 8) + (height >> 1);
if (localX < 0 || localX >= width || localY < 0 || localY >= height) {
continue;
} else {
if (!variant) {
SPRITE_TRANSFORMED_LOOP(256, NORMAL);
} else {
SPRITE_TRANSFORMED_LOOP(256, VARIANT);
}
SPRITE_YBASE_16(localY);
SPRITE_XBASE_16(localX);
SPRITE_DRAW_PIXEL_16_NORMAL(localX);
}
}