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Fixed 8x16 sprites display in Castlevania

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This commit is contained in:
Souryo 2014-06-22 13:00:31 -04:00
parent cd1589eafd
commit 4561e9e79d
1 changed files with 6 additions and 4 deletions
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10
Core/PPU.cpp
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@ -307,7 +307,7 @@ void PPU::LoadSpriteTileInfo(uint8_t spriteIndex)
}
if(_flags.LargeSprites) {
tileAddr = ((tileIndex & 0x01) ? 0x1000 : 0x0000) | ((tileIndex & ~0x01) << 4) + lineOffset;
tileAddr = (((tileIndex & 0x01) ? 0x1000 : 0x0000) | ((tileIndex & ~0x01) << 4)) + (lineOffset > 8 ? lineOffset + 8 : lineOffset);
} else {
tileAddr = ((tileIndex << 4) | _flags.SpritePatternAddr) + lineOffset;
}
@ -319,8 +319,6 @@ void PPU::LoadSpriteTileInfo(uint8_t spriteIndex)
_spriteTiles[spriteIndex].LowByte = _memoryManager->ReadVRAM(tileAddr);
_spriteTiles[spriteIndex].HighByte = _memoryManager->ReadVRAM(tileAddr + 8);
}
_spriteCount = (_secondaryOAMAddr >> 2);
}
void PPU::LoadNextTile()
@ -480,7 +478,10 @@ void PPU::ProcessVisibleScanline()
PPU::VideoDevice->UpdateFrame(_outputBuffer);
}
} else if((_cycle - 261) % 8 == 0 && _cycle <= 320) {
LoadSpriteTileInfo((_cycle - 261) / 8);
uint32_t spriteIndex = (_cycle - 261) / 8;
if(spriteIndex < _spriteCount) {
LoadSpriteTileInfo(spriteIndex);
}
} else if(_cycle == 321 || _cycle == 329) {
LoadTileInfo();
if(_cycle == 329) {
@ -506,6 +507,7 @@ void PPU::CopyOAMData()
_secondaryOAMAddr = 0;
} else if(_cycle == 256) {
_sprite0Visible = _sprite0Added;
_spriteCount = (_secondaryOAMAddr >> 2);
}
if(_cycle & 0x01) {