public Bitmap GetBitmap(int mipLevel = 0)
{
MipMap mip = MipMaps[mipLevel];
int x, y;
Bitmap bmp = new Bitmap(mip.Width, mip.Height, PixelFormat.Format32bppArgb);
byte[] data;
byte[] dest;
switch (Format)
{
case D3DFormat.PVRTC4:
data = mip.Data;
dest = new byte[mip.Width * mip.Height * 4];
PVTRC.Decompress(data, false, mip.Width, mip.Height, true, dest);
for (y = 0; y < mip.Height; y++)
{
for (x = 0; x < mip.Width; x++)
{
int offset = (x + y * mip.Width) * 4;
Color c = Color.FromArgb(dest[offset + 3], dest[offset + 0], dest[offset + 1], dest[offset + 2]);
bmp.SetPixel(x, y, c);
}
}
break;
case D3DFormat.R4G4B4A4:
data = mip.Data;
for (y = 0; y < mip.Height; y++)
{
for (x = 0; x < mip.Width; x++)
{
int offset = (x + y * mip.Width) * 2;
int pixel = BitConverter.ToUInt16(data, offset);
bmp.SetPixel(x, y, ColorHelper.R4G4B4A4ToColor(pixel));
}
}
break;
case D3DFormat.R5G5B6:
data = mip.Data;
for (y = 0; y < mip.Height; y++)
{
for (x = 0; x < mip.Width; x++)
{
int offset = (x + y * mip.Width) * 2;
int pixel = BitConverter.ToUInt16(data, offset);
bmp.SetPixel(x, y, ColorHelper.R5G5B6ToColor(pixel));
}
}
break;
case D3DFormat.A8B8G8R8:
data = mip.Data;
for (y = 0; y < mip.Height; y++)
{
for (x = 0; x < mip.Width; x++)
{
int offset = (x + y * mip.Width) * 4;
uint pixel = BitConverter.ToUInt32(data, offset);
bmp.SetPixel(x, y, ColorHelper.A8B8G8R8ToColor(pixel));
}
}
break;
case D3DFormat.R5G6B5:
data = mip.Data;
for (y = 0; y < mip.Height; y++)
{
for (x = 0; x < mip.Width; x++)
{
int offset = (x + y * mip.Width) * 2;
int pixel = BitConverter.ToUInt16(data, offset);
bmp.SetPixel(x, y, ColorHelper.R5G6B5ToColor(pixel));
}
}
break;
case D3DFormat.A8R8G8B8:
data = mip.Data;
int pixelSize = Flags.HasFlag(TDXFlags.AlphaNbit) ? 4 : 3;
for (y = 0; y < mip.Height; y++)
{
for (x = 0; x < mip.Width; x++)
{
int offset = (x + y * mip.Width) * pixelSize;
int a = pixelSize == 4 ? data[offset + 3] : 255;
Color c = Color.FromArgb(a, data[offset + 0], data[offset + 1], data[offset + 2]);
bmp.SetPixel(x, y, c);
}
}
break;
case D3DFormat.DXT1:
data = mip.Data;
dest = new byte[mip.Width * mip.Height * 4];
Squish.Squish.DecompressImage(dest, mip.Width, mip.Height, ref data, SquishFlags.kDxt1);
for (y = 0; y < mip.Height; y++)
{
for (x = 0; x < mip.Width; x++)
{
int offset = (x + y * mip.Width) * 4;
Color c = Color.FromArgb(dest[offset + 3], dest[offset + 0], dest[offset + 1], dest[offset + 2]);
bmp.SetPixel(x, y, c);
}
}
break;
case D3DFormat.DXT5:
data = mip.Data;
dest = new byte[mip.Width * mip.Height * 4];
Squish.Squish.DecompressImage(dest, mip.Width, mip.Height, ref data, SquishFlags.kDxt5);
for (y = 0; y < mip.Height; y++)
{
for (x = 0; x < mip.Width; x++)
{
int offset = (x + y * mip.Width) * 4;
Color c = Color.FromArgb(dest[offset + 3], dest[offset + 0], dest[offset + 1], dest[offset + 2]);
bmp.SetPixel(x, y, c);
}
}
break;
case D3DFormat.ATI2:
data = mip.Data;
dest = BC5Unorm.Decompress(data, (uint)mip.Width, (uint)mip.Height);
for (y = 0; y < mip.Height; y++)
{
for (x = 0; x < mip.Width; x++)
{
int offset = (x + y * mip.Width) * 4;
Color c = Color.FromArgb(dest[offset + 3], dest[offset + 2], dest[offset + 1], dest[offset + 0]);
bmp.SetPixel(x, y, c);
}
}
break;
}
return(bmp);
}
public static TDX LoadFromBitmap(Bitmap asset, string name, D3DFormat format)
{
TDX tdx = null;
if (tdx == null)
{
tdx = new TDX();
Bitmap b = asset;
SquishFlags flags = SquishFlags.kDxt1;
tdx.Name = name;
tdx.Format = format;
switch (tdx.Format)
{
case D3DFormat.DXT1:
flags = SquishFlags.kDxt1;
break;
case D3DFormat.DXT5:
flags = SquishFlags.kDxt5;
break;
}
List <Bitmap> mipBitmaps = GenerateMips(b, b.Width, b.Height);
foreach (Bitmap mb in mipBitmaps)
{
MipMap mip = new MipMap()
{
Width = mb.Width,
Height = mb.Height
};
byte[] data = new byte[mb.Width * mb.Height * 4];
byte[] dest = new byte[Squish.Squish.GetStorageRequirements(mb.Width, mb.Height, flags | SquishFlags.kColourIterativeClusterFit | SquishFlags.kWeightColourByAlpha)];
int ii = 0;
for (int y = 0; y < mb.Height; y++)
{
for (int x = 0; x < mb.Width; x++)
{
Color p = mb.GetPixel(x, y);
data[ii + 0] = p.R;
data[ii + 1] = p.G;
data[ii + 2] = p.B;
data[ii + 3] = p.A;
ii += 4;
}
}
if (format == D3DFormat.ATI2)
{
dest = BC5Unorm.Compress(data, (ushort)mb.Width, (ushort)mb.Height, GetMipSize(format, (ushort)mb.Width, (ushort)mb.Height));
}
else
{
Squish.Squish.CompressImage(data, mb.Width, mb.Height, ref dest, flags | SquishFlags.kColourClusterFit);
}
mip.Data = dest;
tdx.MipMaps.Add(mip);
}
}
return(tdx);
}
