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mgba
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Minor optimization to backgroud mode 0

This commit is contained in:
Jeffrey Pfau 2013-07-21 18:56:45 -07:00
parent 8dc3fa9bec
commit edecf6c1f6
1 changed files with 79 additions and 67 deletions
src/gba/renderers
video-software.c

146
src/gba/renderers/video-software.c
View File

@ -499,26 +499,30 @@ static void _composite(struct GBAVideoSoftwareRenderer* renderer, int offset, ui
}
#define BACKGROUND_DRAW_PIXEL_16_NORMAL \
if (tileData & 0xF && !(renderer->row[outX] & FLAG_FINALIZED)) { \
_composite(renderer, outX, renderer->normalPalette[(tileData & 0xF) | (mapData.palette << 4)] | flags); \
pixelData = tileData & 0xF; \
if (pixelData && !(renderer->row[outX] & FLAG_FINALIZED)) { \
_composite(renderer, outX, renderer->normalPalette[pixelData | paletteData] | flags); \
} \
tileData >>= 4;
#define BACKGROUND_DRAW_PIXEL_16_VARIANT \
pixelData = tileData & 0xF; \
if (tileData & 0xF && !(renderer->row[outX] & FLAG_FINALIZED)) { \
_composite(renderer, outX, renderer->variantPalette[(tileData & 0xF) | (mapData.palette << 4)] | flags); \
_composite(renderer, outX, renderer->variantPalette[pixelData | paletteData] | flags); \
} \
tileData >>= 4;
#define BACKGROUND_DRAW_PIXEL_256_NORMAL \
if (tileData & 0xFF && !(renderer->row[outX] & FLAG_FINALIZED)) { \
_composite(renderer, outX, renderer->normalPalette[tileData & 0xFF] | flags); \
pixelData = tileData & 0xFF; \
if (pixelData && !(renderer->row[outX] & FLAG_FINALIZED)) { \
_composite(renderer, outX, renderer->normalPalette[pixelData] | flags); \
} \
tileData >>= 8;
#define BACKGROUND_DRAW_PIXEL_256_VARIANT \
if (tileData & 0xFF && !(renderer->row[outX] & FLAG_FINALIZED)) { \
_composite(renderer, outX, renderer->variantPalette[tileData & 0xFF] | flags); \
pixelData = tileData & 0xFF; \
if (pixelData && !(renderer->row[outX] & FLAG_FINALIZED)) { \
_composite(renderer, outX, renderer->variantPalette[pixelData] | flags); \
} \
tileData >>= 8;
@ -537,10 +541,13 @@ static void _composite(struct GBAVideoSoftwareRenderer* renderer, int offset, ui
}
#define BACKGROUND_MODE_0_TILE_16_LOOP(TYPE) \
uint32_t tileData; \
int paletteData, pixelData; \
for (; tileX < 30; ++tileX) { \
BACKGROUND_TEXT_SELECT_CHARACTER; \
paletteData = mapData.palette << 4; \
charBase = ((background->charBase + (mapData.tile << 5)) >> 2) + localY; \
uint32_t tileData = ((uint32_t*)renderer->d.vram)[charBase]; \
tileData = ((uint32_t*)renderer->d.vram)[charBase]; \
if (tileData) { \
if (!mapData.hflip) { \
BACKGROUND_DRAW_PIXEL_16_ ## TYPE; \
@ -584,67 +591,69 @@ static void _composite(struct GBAVideoSoftwareRenderer* renderer, int offset, ui
}
#define BACKGROUND_MODE_0_TILE_256_LOOP(TYPE) \
for (; tileX < 30; ++tileX) { \
BACKGROUND_TEXT_SELECT_CHARACTER; \
charBase = ((background->charBase + (mapData.tile << 6)) >> 2) + (localY << 1); \
if (!mapData.hflip) { \
uint32_t tileData = ((uint32_t*)renderer->d.vram)[charBase]; \
if (tileData) { \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
} else { \
outX += 4; \
} \
tileData = ((uint32_t*)renderer->d.vram)[charBase + 1]; \
if (tileData) { \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
} else { \
outX += 4; \
} \
uint32_t tileData; \
int pixelData; \
for (; tileX < 30; ++tileX) { \
BACKGROUND_TEXT_SELECT_CHARACTER; \
charBase = ((background->charBase + (mapData.tile << 6)) >> 2) + (localY << 1); \
if (!mapData.hflip) { \
tileData = ((uint32_t*)renderer->d.vram)[charBase]; \
if (tileData) { \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
} else { \
uint32_t tileData = ((uint32_t*)renderer->d.vram)[charBase + 1]; \
if (tileData) { \
outX += 3; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
outX += 4; \
} else { \
outX += 4; \
} \
tileData = ((uint32_t*)renderer->d.vram)[charBase]; \
if (tileData) { \
outX += 3; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
outX += 4; \
} else { \
outX += 4; \
} \
outX += 4; \
} \
}
tileData = ((uint32_t*)renderer->d.vram)[charBase + 1]; \
if (tileData) { \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
++outX; \
} else { \
outX += 4; \
} \
} else { \
uint32_t tileData = ((uint32_t*)renderer->d.vram)[charBase + 1]; \
if (tileData) { \
outX += 3; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
outX += 4; \
} else { \
outX += 4; \
} \
tileData = ((uint32_t*)renderer->d.vram)[charBase]; \
if (tileData) { \
outX += 3; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
--outX; \
BACKGROUND_DRAW_PIXEL_256_ ## TYPE; \
outX += 4; \
} else { \
outX += 4; \
} \
} \
}
static void _drawBackgroundMode0(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int y) {
int inX = background->x;
@ -675,10 +684,12 @@ static void _drawBackgroundMode0(struct GBAVideoSoftwareRenderer* renderer, stru
int tileX = 0;
if (inX & 0x7) {
uint32_t tileData;
int pixelData, paletteData;
BACKGROUND_TEXT_SELECT_CHARACTER;
int end = 0x8 - (inX & 0x7);
if (!background->multipalette) {
paletteData = mapData.palette << 4;
charBase = ((background->charBase + (mapData.tile << 5)) >> 2) + localY;
tileData = ((uint32_t*)renderer->d.vram)[charBase];
if (!mapData.hflip) {
@ -742,6 +753,7 @@ static void _drawBackgroundMode0(struct GBAVideoSoftwareRenderer* renderer, stru
if (!background->multipalette) {
charBase = ((background->charBase + (mapData.tile << 5)) >> 2) + localY;
tileData = ((uint32_t*)renderer->d.vram)[charBase];
paletteData = mapData.palette << 4;
if (!mapData.hflip) {
if (!variant) {
for (outX = VIDEO_HORIZONTAL_PIXELS - 8 + end; outX < VIDEO_HORIZONTAL_PIXELS; ++outX) {