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GB Video: Fix SGB border transparency

This commit is contained in:
Vicki Pfau 2018-04-18 18:27:14 -07:00
parent 4a10ea2f69
commit 9630583646
1 changed files with 19 additions and 10 deletions
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29
src/gb/renderers/software.c
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@ -81,18 +81,12 @@ static void _regenerateSGBBorder(struct GBVideoSoftwareRenderer* renderer) {
if (SGBBgAttributesIsXFlip(mapData)) {
for (i = 0; i < 8; ++i) {
colorSelector = (tileData[0] >> i & 0x1) << 0 | (tileData[1] >> i & 0x1) << 1 | (tileData[2] >> i & 0x1) << 2 | (tileData[3] >> i & 0x1) << 3;
// The first color of every palette is transparent
if (colorSelector) {
renderer->outputBuffer[base + i] = renderer->palette[paletteBase | colorSelector];
}
renderer->outputBuffer[base + i] = renderer->palette[paletteBase | colorSelector];
}
} else {
for (i = 7; i >= 0; --i) {
colorSelector = (tileData[0] >> i & 0x1) << 0 | (tileData[1] >> i & 0x1) << 1 | (tileData[2] >> i & 0x1) << 2 | (tileData[3] >> i & 0x1) << 3;
if (colorSelector) {
renderer->outputBuffer[base + 7 - i] = renderer->palette[paletteBase | colorSelector];
}
renderer->outputBuffer[base + 7 - i] = renderer->palette[paletteBase | colorSelector];
}
}
}
@ -359,13 +353,28 @@ static void GBVideoSoftwareRendererWriteSGBPacket(struct GBVideoRenderer* render
static void GBVideoSoftwareRendererWritePalette(struct GBVideoRenderer* renderer, int index, uint16_t value) {
struct GBVideoSoftwareRenderer* softwareRenderer = (struct GBVideoSoftwareRenderer*) renderer;
color_t color = mColorFrom555(value);
if (softwareRenderer->model == GB_MODEL_SGB && index < 0x10 && index && !(index & 3)) {
color = softwareRenderer->palette[0];
if (softwareRenderer->model == GB_MODEL_SGB) {
if (index < 0x10 && index && !(index & 3)) {
color = softwareRenderer->palette[0];
} else if (index >= 0x40 && !(index & 0xF)) {
color = softwareRenderer->palette[0];
}
}
softwareRenderer->palette[index] = color;
if (renderer->cache) {
mCacheSetWritePalette(renderer->cache, index, color);
}
if (softwareRenderer->model == GB_MODEL_SGB && !index && GBRegisterLCDCIsEnable(softwareRenderer->lcdc)) {
renderer->writePalette(renderer, 0x04, value);
renderer->writePalette(renderer, 0x08, value);
renderer->writePalette(renderer, 0x0C, value);
renderer->writePalette(renderer, 0x40, value);
renderer->writePalette(renderer, 0x50, value);
renderer->writePalette(renderer, 0x60, value);
renderer->writePalette(renderer, 0x70, value);
_regenerateSGBBorder(softwareRenderer);
}
}
static void GBVideoSoftwareRendererWriteVRAM(struct GBVideoRenderer* renderer, uint16_t address) {