public static unsafe Bitmap Decode(SubTexture subTexture)
{
var bitmap = new Bitmap(subTexture.Width, subTexture.Height);
var rect = new Rectangle(0, 0, bitmap.Width, bitmap.Height);
if (subTexture.Format == TextureFormat.RGB)
{
var bitmapData = bitmap.LockBits(rect, ImageLockMode.WriteOnly, PixelFormat.Format24bppRgb);
fixed(byte *ptr = subTexture.Data)
{
RGBtoBGR(ptr, ( byte * )bitmapData.Scan0, subTexture.Data.Length);
}
bitmap.UnlockBits(bitmapData);
}
else if (subTexture.Format == TextureFormat.RGBA)
{
var bitmapData = bitmap.LockBits(rect, ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
fixed(byte *ptr = subTexture.Data)
{
ByteRGBAToInt32(ptr, ( int * )bitmapData.Scan0, subTexture.Data.Length);
}
bitmap.UnlockBits(bitmapData);
}
else if (subTexture.Format == TextureFormat.RGBA4)
{
var bitmapData = bitmap.LockBits(rect, ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
fixed(byte *ptr = subTexture.Data)
{
RGBA4toRGBA(ptr, ( int * )bitmapData.Scan0, subTexture.Data.Length);
}
bitmap.UnlockBits(bitmapData);
}
else
{
var buffer = DDSCodec.DecompressPixelDataToRGBA(subTexture.Data, subTexture.Width, subTexture.Height,
TextureUtilities.GetDDSPixelFormat(subTexture.Format));
var bitmapData = bitmap.LockBits(rect, ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
Marshal.Copy(buffer, 0, bitmapData.Scan0, buffer.Length);
bitmap.UnlockBits(bitmapData);
}
return(bitmap);
}
public static unsafe Bitmap Decode(Texture texture)
{
if (texture.IsYCbCr)
{
var bitmap = new Bitmap(texture[0].Width, texture[0].Height);
var rect = new Rectangle(0, 0, bitmap.Width, bitmap.Height);
var lumBuffer = DDSCodec.DecompressPixelDataToRGBA(
texture[0].Data, texture[0].Width, texture[0].Height,
TextureUtilities.GetDDSPixelFormat(texture.Format));
var cbrBuffer = DDSCodec.DecompressPixelDataToRGBA(
texture[1].Data, texture[1].Width, texture[1].Height,
TextureUtilities.GetDDSPixelFormat(texture.Format));
var bitmapData = bitmap.LockBits(rect, ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
fixed(byte *lumPtr = lumBuffer)
fixed(byte *cbrPtr = cbrBuffer)
{
var lumIntPtr = ( int * )lumPtr;
var cbrIntPtr = ( int * )cbrPtr;
ConvertYCbCrToRGBA(lumIntPtr, cbrIntPtr, ( int * )bitmapData.Scan0, bitmap.Width, bitmap.Height);
}
bitmap.UnlockBits(bitmapData);
return(bitmap);
}
if (texture.UsesDepth)
{
var bitmap = new Bitmap(texture.Width * texture.Depth, texture.Height);
using (var gfx = Graphics.FromImage(bitmap))
{
int currentIndex = 0;
foreach (int i in CubeMapToDDSCubeMap())
{
gfx.DrawImageUnscaled(Decode(texture[i, 0]), currentIndex++ *texture.Width, 0);
}
}
return(bitmap);
}
return(Decode(texture[0]));
}
private static unsafe void Encode(SubTexture subTexture, Bitmap bitmap)
{
bool ownsBitmap = false;
if (subTexture.Width != bitmap.Width || subTexture.Height != bitmap.Height)
{
ownsBitmap = true;
bitmap = new Bitmap(bitmap, subTexture.Width, subTexture.Height);
}
var rect = new Rectangle(0, 0, bitmap.Width, bitmap.Height);
if (subTexture.Format == TextureFormat.RGB)
{
var bitmapData = bitmap.LockBits(rect, ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
fixed(byte *ptr = subTexture.Data)
{
BGRtoRGB(( byte * )bitmapData.Scan0, ptr, subTexture.Data.Length);
}
bitmap.UnlockBits(bitmapData);
}
else if (subTexture.Format == TextureFormat.RGBA)
{
var bitmapData = bitmap.LockBits(rect, ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
fixed(byte *ptr = subTexture.Data)
{
Int32RGBAToByte(( int * )bitmapData.Scan0, ptr, subTexture.Data.Length);
}
bitmap.UnlockBits(bitmapData);
}
else
{
var compressedPixels =
DDSCodec.CompressPixelData(bitmap, TextureUtilities.GetDDSPixelFormat(subTexture.Format));
Array.Copy(compressedPixels, subTexture.Data, subTexture.Data.Length);
}
if (ownsBitmap)
{
bitmap.Dispose();
}
}
public static void DecodeToDDS(Texture texture, Stream destination)
{
var ddsHeader = new DDSHeader(texture.Width, texture.Height,
TextureUtilities.GetDDSPixelFormat(texture.Format));
if (texture.UsesDepth)
{
ddsHeader.Depth = texture.Depth;
ddsHeader.Flags |= DDSHeaderFlags.Depth;
ddsHeader.Caps |= DDSHeaderCaps.Complex;
ddsHeader.Caps2 |= DDSHeaderCaps2.CubeMap |
DDSHeaderCaps2.CubeMapPositiveX | DDSHeaderCaps2.CubeMapNegativeX |
DDSHeaderCaps2.CubeMapPositiveY | DDSHeaderCaps2.CubeMapNegativeY |
DDSHeaderCaps2.CubeMapPositiveZ | DDSHeaderCaps2.CubeMapNegativeZ;
}
if (texture.UsesMipMaps)
{
ddsHeader.MipMapCount = texture.MipMapCount;
ddsHeader.Flags |= DDSHeaderFlags.MipMapCount;
ddsHeader.Caps |= DDSHeaderCaps.Complex;
}
ddsHeader.Save(destination);
if (texture.UsesDepth)
{
foreach (int i in CubeMapToDDSCubeMap())
{
foreach (var mipMap in texture.EnumerateMipMaps(i))
{
destination.Write(mipMap.Data, 0, mipMap.Data.Length);
}
}
}
else
{
foreach (var mipMap in texture.EnumerateMipMaps())
{
destination.Write(mipMap.Data, 0, mipMap.Data.Length);
}
}
}