void CopyTexelsClut(BinaryReader br, BinaryWriter bw, TxmHeader pakTxm, TxmHeader textureTxm)
{
if (pakTxm.ClutPixelFormat != TxmPixelFormat.None)
{
throw new ArgumentException("Cannot operate on source TXM with CLUT.", nameof(pakTxm));
}
if (textureTxm.ClutPixelFormat == TxmPixelFormat.None)
{
return;
}
var destColumnParams = GsMemoryUtils.GetColumnParams(textureTxm.ClutPixelFormat);
int copyLength = textureTxm.GetClutByteSize();
int baseBlockNumber = textureTxm.ClutBufferBase - pakTxm.ImageBufferBase;
int srcBase = 0x10 + pakTxm.GetClutByteSize();
var destBase = 0x10;
int bytesPerSrcLine = pakTxm.GetImageByteSize() / pakTxm.ImageHeight;
int bytesPerDestLine = textureTxm.GetClutByteSize() / textureTxm.ClutHeight;
bw.Write(new byte[copyLength]);
int numXBlocks = textureTxm.ClutWidth / destColumnParams.Width;
if (numXBlocks == 0)
{
numXBlocks = 1;
}
int numYBlocks = textureTxm.ClutHeight / (destColumnParams.Height * GsMemoryUtils.COLUMNS_PER_BLOCK);
if (numYBlocks == 0)
{
numYBlocks = 1;
}
int destBlock = 0;
for (int blockY = 0; blockY < numYBlocks; ++blockY)
{
for (int blockX = 0; blockX < numXBlocks; ++blockX)
{
int blockNumber = baseBlockNumber + GsMemoryUtils.CalcBlockNumber(textureTxm.ClutPixelFormat, blockX, blockY, 1);
br.BaseStream.Seek(srcBase + GsMemoryUtils.CalcBlockMemoryOffset(pakTxm.ImageSourcePixelFormat, blockNumber),
SeekOrigin.Begin);
bw.BaseStream.Seek(destBase + GsMemoryUtils.CalcTxmImageOffset(destColumnParams, destBlock, textureTxm.ClutWidth),
SeekOrigin.Begin);
for (int i = 0; i < GsMemoryUtils.COLUMNS_PER_BLOCK; ++i)
{
byte[] col = GsMemoryUtils.ReadColumn(br, pakTxm.ImageSourcePixelFormat, bytesPerSrcLine);
GsMemoryUtils.WriteColumn(bw, textureTxm.ClutPixelFormat, bytesPerDestLine, col);
}
++destBlock;
}
}
// Dump palette
//bw.BaseStream.Seek(destBase, SeekOrigin.Begin);
//BinaryReader palBr = new BinaryReader(bw.BaseStream);
//using (var palette = TxmConversion.ConvertTxmRgba32(palBr, textureTxm.ClutWidth, textureTxm.ClutHeight))
//{
// palette.SaveAsPng($"palette_{numWrittenTextures}.png");
//}
}
void CopyTexels(BinaryReader br, BinaryWriter bw, TxmHeader pakTxm, TxmHeader textureTxm)
{
if (pakTxm.ClutPixelFormat != TxmPixelFormat.None)
{
throw new ArgumentException("Cannot operate on source TXM with CLUT.", nameof(pakTxm));
}
var destColumnParams = GsMemoryUtils.GetColumnParams(textureTxm.ImageSourcePixelFormat);
int copyLength = textureTxm.GetImageByteSize();
int srcBase = 0x10 + pakTxm.GetClutByteSize();
int baseBlockNumber = textureTxm.ImageBufferBase - pakTxm.ImageBufferBase;
int destBase = 0x10 + textureTxm.GetClutByteSize();
int bytesPerSrcLine = pakTxm.GetImageByteSize() / pakTxm.ImageHeight;
int bytesPerDestLine = copyLength / textureTxm.ImageHeight;
bw.Write(new byte[copyLength]);
int numXBlocks = textureTxm.ImageWidth / destColumnParams.Width;
if (numXBlocks == 0)
{
numXBlocks = 1;
}
int numYBlocks = textureTxm.ImageHeight / (destColumnParams.Height * GsMemoryUtils.COLUMNS_PER_BLOCK);
if (numYBlocks == 0)
{
numYBlocks = 1;
}
int destBlock = 0;
for (int blockY = 0; blockY < numYBlocks; ++blockY)
{
for (int blockX = 0; blockX < numXBlocks; ++blockX)
{
int blockNumber = baseBlockNumber + GsMemoryUtils.CalcBlockNumber(textureTxm.ImageSourcePixelFormat, blockX, blockY, textureTxm.Misc);
br.BaseStream.Seek(srcBase + GsMemoryUtils.CalcBlockMemoryOffset(pakTxm.ImageSourcePixelFormat, blockNumber),
SeekOrigin.Begin);
bw.BaseStream.Seek(destBase + GsMemoryUtils.CalcTxmImageOffset(destColumnParams, destBlock, textureTxm.ImageWidth),
SeekOrigin.Begin);
for (int i = 0; i < GsMemoryUtils.COLUMNS_PER_BLOCK; ++i)
{
byte[] col = GsMemoryUtils.ReadColumn(br, pakTxm.ImageSourcePixelFormat, bytesPerSrcLine);
if (pakTxm.ImageSourcePixelFormat != textureTxm.ImageSourcePixelFormat)
{
col = PsmtMixer.MixColumn(col, pakTxm.ImageSourcePixelFormat, textureTxm.ImageSourcePixelFormat, i % 2 != 0);
}
GsMemoryUtils.WriteColumn(bw, textureTxm.ImageSourcePixelFormat, bytesPerDestLine, col);
}
++destBlock;
}
}
}