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GBA Video: Implement mosaic for modes 2 - 5, untested with windows

This commit is contained in:
Jeffrey Pfau 2014-11-15 01:32:58 -08:00
parent eb51195769
commit 81b85d1843
1 changed files with 62 additions and 32 deletions
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94
src/gba/renderers/video-software.c
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@ -1249,9 +1249,17 @@ static void _drawBackgroundMode0(struct GBAVideoSoftwareRenderer* renderer, stru
}
#define BACKGROUND_BITMAP_INIT \
UNUSED(unused); \
int32_t x = background->sx + (renderer->start - 1) * background->dx; \
int32_t y = background->sy + (renderer->start - 1) * background->dy; \
int mosaicH = 0; \
int mosaicWait = 0; \
if (background->mosaic) { \
int mosaicV = GBAMosaicControlGetBgV(renderer->mosaic) + 1; \
y -= (inY % mosaicV) * background->dmy; \
x -= (inY % mosaicV) * background->dmx; \
mosaicH = GBAMosaicControlGetBgH(renderer->mosaic); \
mosaicWait = renderer->start % (mosaicH + 1); \
} \
int32_t localX; \
int32_t localY; \
\
@ -1279,7 +1287,7 @@ static void _drawBackgroundMode0(struct GBAVideoSoftwareRenderer* renderer, stru
localY = y; \
}
static void _drawBackgroundMode2(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int unused) {
static void _drawBackgroundMode2(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int inY) {
int sizeAdjusted = 0x8000 << background->size;
BACKGROUND_BITMAP_INIT;
@ -1287,7 +1295,7 @@ static void _drawBackgroundMode2(struct GBAVideoSoftwareRenderer* renderer, stru
uint32_t screenBase = background->screenBase;
uint32_t charBase = background->charBase;
uint8_t mapData;
uint8_t tileData;
uint8_t tileData = 0;
int outX;
uint32_t* pixel;
@ -1295,17 +1303,23 @@ static void _drawBackgroundMode2(struct GBAVideoSoftwareRenderer* renderer, stru
x += background->dx;
y += background->dy;
if (background->overflow) {
localX = x & (sizeAdjusted - 1);
localY = y & (sizeAdjusted - 1);
} else if ((x | y) & ~(sizeAdjusted - 1)) {
continue;
if (!mosaicWait) {
if (background->overflow) {
localX = x & (sizeAdjusted - 1);
localY = y & (sizeAdjusted - 1);
} else if ((x | y) & ~(sizeAdjusted - 1)) {
continue;
} else {
localX = x;
localY = y;
}
mapData = ((uint8_t*)renderer->d.vram)[screenBase + (localX >> 11) + (((localY >> 7) & 0x7F0) << background->size)];
tileData = ((uint8_t*)renderer->d.vram)[charBase + (mapData << 6) + ((localY & 0x700) >> 5) + ((localX & 0x700) >> 8)];
mosaicWait = mosaicH;
} else {
localX = x;
localY = y;
--mosaicWait;
}
mapData = ((uint8_t*)renderer->d.vram)[screenBase + (localX >> 11) + (((localY >> 7) & 0x7F0) << background->size)];
tileData = ((uint8_t*)renderer->d.vram)[charBase + (mapData << 6) + ((localY & 0x700) >> 5) + ((localX & 0x700) >> 8)];
uint32_t current = *pixel;
if (tileData && IS_WRITABLE(current)) {
@ -1319,25 +1333,30 @@ static void _drawBackgroundMode2(struct GBAVideoSoftwareRenderer* renderer, stru
}
}
static void _drawBackgroundMode3(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int unused) {
static void _drawBackgroundMode3(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int inY) {
BACKGROUND_BITMAP_INIT;
uint32_t color;
uint32_t color = renderer->normalPalette[0];
int outX;
uint32_t* pixel;
for (outX = renderer->start, pixel = &renderer->row[outX]; outX < renderer->end; ++outX, ++pixel) {
BACKGROUND_BITMAP_ITERATE(VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
LOAD_16(color, ((localX >> 8) + (localY >> 8) * VIDEO_HORIZONTAL_PIXELS) << 1, renderer->d.vram);
if (!mosaicWait) {
LOAD_16(color, ((localX >> 8) + (localY >> 8) * VIDEO_HORIZONTAL_PIXELS) << 1, renderer->d.vram);
#ifndef COLOR_16_BIT
unsigned color32;
color32 = 0;
color32 |= (color << 3) & 0xF8;
color32 |= (color << 6) & 0xF800;
color32 |= (color << 9) & 0xF80000;
color = color32;
unsigned color32;
color32 = 0;
color32 |= (color << 3) & 0xF8;
color32 |= (color << 6) & 0xF800;
color32 |= (color << 9) & 0xF80000;
color = color32;
#endif
mosaicWait = mosaicH;
} else {
--mosaicWait;
}
uint32_t current = *pixel;
if (!objwinSlowPath || !(current & FLAG_OBJWIN) != objwinOnly) {
@ -1352,10 +1371,10 @@ static void _drawBackgroundMode3(struct GBAVideoSoftwareRenderer* renderer, stru
}
}
static void _drawBackgroundMode4(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int unused) {
static void _drawBackgroundMode4(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int inY) {
BACKGROUND_BITMAP_INIT;
uint16_t color;
uint16_t color = renderer->normalPalette[0];
uint32_t offset = 0;
if (GBARegisterDISPCNTIsFrameSelect(renderer->dispcnt)) {
offset = 0xA000;
@ -1366,7 +1385,13 @@ static void _drawBackgroundMode4(struct GBAVideoSoftwareRenderer* renderer, stru
for (outX = renderer->start, pixel = &renderer->row[outX]; outX < renderer->end; ++outX, ++pixel) {
BACKGROUND_BITMAP_ITERATE(VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
color = ((uint8_t*)renderer->d.vram)[offset + (localX >> 8) + (localY >> 8) * VIDEO_HORIZONTAL_PIXELS];
if (!mosaicWait) {
color = ((uint8_t*)renderer->d.vram)[offset + (localX >> 8) + (localY >> 8) * VIDEO_HORIZONTAL_PIXELS];
mosaicWait = mosaicH;
} else {
--mosaicWait;
}
uint32_t current = *pixel;
if (color && IS_WRITABLE(current)) {
@ -1380,10 +1405,10 @@ static void _drawBackgroundMode4(struct GBAVideoSoftwareRenderer* renderer, stru
}
}
static void _drawBackgroundMode5(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int unused) {
static void _drawBackgroundMode5(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int inY) {
BACKGROUND_BITMAP_INIT;
uint32_t color;
uint32_t color = renderer->normalPalette[0];
uint32_t offset = 0;
if (GBARegisterDISPCNTIsFrameSelect(renderer->dispcnt)) {
offset = 0xA000;
@ -1394,14 +1419,19 @@ static void _drawBackgroundMode5(struct GBAVideoSoftwareRenderer* renderer, stru
for (outX = renderer->start, pixel = &renderer->row[outX]; outX < renderer->end; ++outX, ++pixel) {
BACKGROUND_BITMAP_ITERATE(160, 128);
LOAD_16(color, (offset + (localX >> 8) + (localY >> 8) * 160) << 1, renderer->d.vram);
if (!mosaicWait) {
LOAD_16(color, (offset + (localX >> 8) + (localY >> 8) * 160) << 1, renderer->d.vram);
#ifndef COLOR_16_BIT
unsigned color32 = 0;
color32 |= (color << 9) & 0xF80000;
color32 |= (color << 3) & 0xF8;
color32 |= (color << 6) & 0xF800;
color = color32;
unsigned color32 = 0;
color32 |= (color << 9) & 0xF80000;
color32 |= (color << 3) & 0xF8;
color32 |= (color << 6) & 0xF800;
color = color32;
#endif
mosaicWait = mosaicH;
} else {
--mosaicWait;
}
uint32_t current = *pixel;
if (!objwinSlowPath || !(current & FLAG_OBJWIN) != objwinOnly) {