private void Read_DDS_PIXELFORMAT(DDS_PIXELFORMAT p, BinaryReader r)
{
p.dwSize = r.ReadUInt32();
p.dwFlags = r.ReadUInt32();
p.dwFourCC = r.ReadUInt32();
p.dwRGBBitCount = r.ReadUInt32();
p.dwRBitMask = r.ReadUInt32();
p.dwGBitMask = r.ReadUInt32();
p.dwBBitMask = r.ReadUInt32();
p.dwABitMask = r.ReadUInt32();
}
private void Write_DDS_PIXELFORMAT(DDSFormat p, Stream s)
{
DDS_PIXELFORMAT fmt = getDDSPixelFormat(p);
s.WriteInt32(DDS_PIXELFORMAT_size);
s.WriteUInt32(fmt.dwFlags);
s.WriteUInt32(fmt.dwFourCC);
s.WriteUInt32(fmt.dwRGBBitCount);
s.WriteUInt32(fmt.dwRBitMask);
s.WriteUInt32(fmt.dwGBitMask);
s.WriteUInt32(fmt.dwBBitMask);
s.WriteUInt32(fmt.dwABitMask);
}
private DDS_PIXELFORMAT getDDSPixelFormat(DDSFormat format)
{
DDS_PIXELFORMAT pixelFormat = new DDS_PIXELFORMAT();
switch (format)
{
case DDSFormat.DXT1:
pixelFormat.dwFlags = DDPF_FOURCC;
pixelFormat.dwFourCC = FOURCC_DXT1;
break;
case DDSFormat.DXT3:
pixelFormat.dwFlags = DDPF_FOURCC;
pixelFormat.dwFourCC = FOURCC_DXT3;
break;
case DDSFormat.DXT5:
pixelFormat.dwFlags = DDPF_FOURCC;
pixelFormat.dwFourCC = FOURCC_DXT5;
break;
case DDSFormat.ATI2:
pixelFormat.dwFlags = DDPF_FOURCC;
pixelFormat.dwFourCC = FOURCC_ATI2;
break;
case DDSFormat.V8U8:
pixelFormat.dwFlags = 0x80000;
pixelFormat.dwRGBBitCount = 0x10;
pixelFormat.dwRBitMask = 0xFF;
pixelFormat.dwGBitMask = 0xFF00;
pixelFormat.dwBBitMask = 0x00;
pixelFormat.dwABitMask = 0x00;
break;
case DDSFormat.G8:
pixelFormat.dwFlags = DDPF_LUMINANCE;
pixelFormat.dwRGBBitCount = 0x08;
pixelFormat.dwRBitMask = 0xFF;
pixelFormat.dwGBitMask = 0x00;
pixelFormat.dwBBitMask = 0x00;
pixelFormat.dwABitMask = 0x00;
break;
case DDSFormat.ARGB:
pixelFormat.dwFlags = DDPF_ALPHAPIXELS | DDPF_RGB;
pixelFormat.dwRGBBitCount = 0x20;
pixelFormat.dwRBitMask = 0xFF0000;
pixelFormat.dwGBitMask = 0xFF00;
pixelFormat.dwBBitMask = 0xFF;
pixelFormat.dwABitMask = 0xFF000000;
break;
case DDSFormat.RGB:
pixelFormat.dwFlags = DDPF_RGB;
pixelFormat.dwRGBBitCount = 0x18;
pixelFormat.dwRBitMask = 0xFF0000;
pixelFormat.dwGBitMask = 0xFF00;
pixelFormat.dwBBitMask = 0xFF;
pixelFormat.dwABitMask = 0x00;
break;
default:
throw new Exception("invalid texture format " + ddsFormat);
}
return(pixelFormat);
}
private void Read_DDS_PIXELFORMAT(DDS_PIXELFORMAT p, BinaryReader r)
{
p.dwSize = r.ReadInt32();
p.dwFlags = r.ReadInt32();
p.dwFourCC = r.ReadInt32();
p.dwRGBBitCount = r.ReadInt32();
p.dwRBitMask = r.ReadInt32();
p.dwGBitMask = r.ReadInt32();
p.dwBBitMask = r.ReadInt32();
p.dwABitMask = r.ReadInt32();
}
