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PPU: Fixed mosaic display when reading/writing to PPU registers in the middle of a scanline

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This commit is contained in:
Sour 2020-07-05 16:21:26 -04:00
parent 1d27867ddd
commit 98fe9a85d6
1 changed files with 10 additions and 4 deletions
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14
Core/Ppu.cpp
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@ -949,7 +949,7 @@ void Ppu::RenderTilemap()
TileData* tileData = _layerData[layerIndex].Tiles;
uint8_t mosaicCounter = applyMosaic ? _state.MosaicSize - (_drawStartX % _state.MosaicSize) : 0;
uint8_t mosaicCounter = applyMosaic ? (_drawStartX % _state.MosaicSize) : 0;
uint8_t lookupIndex;
uint8_t chrDataOffset;
@ -988,7 +988,7 @@ void Ppu::RenderTilemap()
uint8_t priority = (tilemapData & 0x2000) ? highPriority : normalPriority;
if(applyMosaic) {
if(mosaicCounter == _state.MosaicSize) {
if(mosaicCounter == 0) {
mosaicCounter = 1;
if(hiResMode) {
color = hiresSubColor;
@ -997,6 +997,9 @@ void Ppu::RenderTilemap()
_mosaicPriority[layerIndex] = priority;
} else {
mosaicCounter++;
if(mosaicCounter == _state.MosaicSize) {
mosaicCounter = 0;
}
color = _mosaicColor[layerIndex] & 0xFF;
paletteIndex = _mosaicColor[layerIndex] >> 8;
priority = _mosaicPriority[layerIndex];
@ -1108,7 +1111,7 @@ void Ppu::RenderTilemapMode7()
//Keep the "scanline" to what it was at the start of this mosaic block
realY -= _state.MosaicSize - _mosaicScanlineCounter;
}
uint8_t mosaicCounter = applyMosaic ? _state.MosaicSize - (_drawStartX % _state.MosaicSize) : 0;
uint8_t mosaicCounter = applyMosaic ? (_drawStartX % _state.MosaicSize) : 0;
int32_t xValue = (
((_state.Mode7.Matrix[0] * clip(hScroll - centerX)) & ~63) +
@ -1175,12 +1178,15 @@ void Ppu::RenderTilemapMode7()
}
if(applyMosaic) {
if(mosaicCounter == _state.MosaicSize) {
if(mosaicCounter == 0) {
mosaicCounter = 1;
_mosaicColor[layerIndex] = colorIndex;
_mosaicPriority[layerIndex] = priority;
} else {
mosaicCounter++;
if(mosaicCounter == _state.MosaicSize) {
mosaicCounter = 0;
}
colorIndex = _mosaicColor[layerIndex];
priority = _mosaicPriority[layerIndex];
}