protected override Bitmap OnGetBitmap(int imageIndex, int paletteIndex)
{
List <PSSGNode> allTextures = RootNode.FindNodes("TEXTURE");
PSSGNode texNode = allTextures[imageIndex];
Int32 width = Convert.ToInt32(texNode.Attributes["width"].Value);
Int32 height = Convert.ToInt32(texNode.Attributes["height"].Value);
Int32 numBlocks = Convert.ToInt32(texNode.Attributes["imageBlockCount"].Value);
string texelFormat = texNode.Attributes["texelFormat"].Value;
PixelDataFormat pixelFormat = PixelDataFormat.Undefined;
bool flipY = false;
List <PSSGNode> texImageBlocks = texNode.FindNodes("TEXTUREIMAGEBLOCK");
switch (texelFormat)
{
case "ui8x4":
pixelFormat = PixelDataFormat.FormatArgb8888 | PixelDataFormat.PixelOrderingLinear;
flipY = true;
break;
case "u8x4":
pixelFormat = PixelDataFormat.FormatAbgr8888 | PixelDataFormat.PixelOrderingLinear;
flipY = true;
break;
case "dxt1":
pixelFormat = PixelDataFormat.FormatDXT1Rgba;
flipY = true;
break;
case "dxt5":
pixelFormat = PixelDataFormat.FormatDXT5;
flipY = true;
break;
default:
throw new NotSupportedException(String.Format("Unsupported PSSG texel Format: {0}", texelFormat));
}
/* find out how many raw data blocks there are */
if (numBlocks > 1)
{
throw new NotSupportedException("Loading PSSG cube maps is not yet supported");
}
else
{
/* we only have a single block. use that */
ImageBinary imgbin = new ImageBinary();
imgbin.Width = width;
imgbin.Height = height;
imgbin.InputPixelFormat = pixelFormat;
imgbin.InputEndianness = Endian.LittleEndian;
imgbin.AddInputPixels(texImageBlocks[0].FindNodes("TEXTUREIMAGEBLOCKDATA")[0].Data);
Bitmap bmp = imgbin.GetBitmap();
if (flipY)
{
bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
}
return(bmp);
}
}
protected override void OnOpen(EndianBinaryReader reader)
{
MagicNumber = Encoding.ASCII.GetString(reader.ReadBytes(4));
reader.Endianness = Endian.BigEndian;
FileSize = reader.ReadInt32();
AttributeInfoCount = reader.ReadInt32();
NodeInfoCount = reader.ReadInt32();
AttributeInfo = new PSSGAttributeInfo[AttributeInfoCount];
NodeInfo = new PSSGNodeInfo[NodeInfoCount];
for (int i = 0; i < NodeInfoCount; i++)
{
NodeInfo[i] = new PSSGNodeInfo(reader);
foreach (PSSGAttributeInfo ai in NodeInfo[i].AttributeInfo.Values)
{
AttributeInfo[ai.ID - 1] = ai;
}
}
RootNode = new PSSGNode(reader, this);
}
