private void RenderTileDataPixel(byte[] currentTileData, SpriteDataFlags flags, int outputX, int localX)
{
if (_device.GbcMode)
{
// TODO: support other flags.
int actualX = localX & 7;
// Horizontal flip when specified.
if ((flags & SpriteDataFlags.XFlip) != 0)
{
actualX = 7 - actualX;
}
if (LY == 0)
{
}
int paletteIndex = (int)(flags & SpriteDataFlags.PaletteNumberMask);
int colorIndex = GetPixelColorIndex(actualX, currentTileData);
RenderPixel(outputX, LY, colorIndex, GetGbcColor(_bgPaletteMemory, paletteIndex, colorIndex));
}
else
{
int colorIndex = GetPixelColorIndex(localX & 7, currentTileData);
int greyshadeIndex = GetGreyshadeIndex(Bgp, colorIndex);
RenderPixel(outputX, LY, colorIndex, _greyshades[greyshadeIndex]);
}
}
private void CopyTileData(int tileMapAddress, int tileIndex, int tileDataAddress, byte[] buffer, SpriteDataFlags flags)
{
byte dataIndex = _vram[(ushort)(tileMapAddress + tileIndex)];
if ((_lcdc & LcdControlFlags.BgWindowTileDataSelect) !=
LcdControlFlags.BgWindowTileDataSelect)
{
// Index is signed number in [-128..127] => compensate for it.
dataIndex = unchecked ((byte)((sbyte)dataIndex + 0x80));
}
int bankOffset = ((flags & SpriteDataFlags.TileVramBank) != 0) ? 0x2000 : 0x0000;
Buffer.BlockCopy(_vram, bankOffset + tileDataAddress + (dataIndex << 4), buffer, 0, 2);
}
