private static void SetupExtendedHeader(out ExtendedHeader header, TextureHeader textureHeader)
{
header.Format = DDSHelpers.GetDXGIFormat(textureHeader.Format);
header.Dimension = 3;
header.MiscFlags = 0;
header.ArraySize = 1;
header.MiscFlags2 = 0;
}
public static void WriteFile(TextureHeader textureHeader, byte[] data, Stream output)
{
const Endian endian = Endian.Little;
output.WriteString("DDS ", Encoding.ASCII);
switch (textureHeader.Format)
{
case TextureFormat.BC1_UNORM:
case TextureFormat.BC1_SRGB:
case TextureFormat.BC2_UNORM:
case TextureFormat.BC2_SRGB:
case TextureFormat.BC3_UNORM:
case TextureFormat.BC3_SRGB:
case TextureFormat.BC4_UNORM:
case TextureFormat.BC5_UNORM:
{
Header header;
SetupHeader(out header, textureHeader);
header.PixelFormat.FourCC = DDSHelpers.GetFourCC(textureHeader.Format);
header.PixelFormat.Flags = (PixelFormatFlags)4;
header.Write(output, endian);
output.WriteBytes(data);
break;
}
case TextureFormat.BC6U_FLOAT:
case TextureFormat.BC7_UNORM:
case TextureFormat.BC7_SRGB:
case TextureFormat.R9G9B9E5_FLOAT: // TODO(gibbed): probably not right
{
Header header;
ExtendedHeader extendedHeader;
SetupHeader(out header, textureHeader);
header.PixelFormat.FourCC = 0x30315844;
header.PixelFormat.Flags = (PixelFormatFlags)4;
SetupExtendedHeader(out extendedHeader, textureHeader);
header.Write(output, endian);
extendedHeader.Write(output, endian);
output.WriteBytes(data);
break;
}
case TextureFormat.R8_UNORM:
{
Header header;
SetupHeader(out header, textureHeader);
header.PixelFormat.RedBitMask = 0x000000FF;
header.PixelFormat.GreenBitMask = 0x00000000;
header.PixelFormat.BlueBitMask = 0x00000000;
header.PixelFormat.AlphaBitMask = 0x00000000;
header.PixelFormat.RGBBitCount = 8;
header.PitchOrLinearSize = textureHeader.Width;
header.PixelFormat.Flags = PixelFormatFlags.Luminance;
header.Write(output, endian);
output.WriteBytes(data);
break;
}
case TextureFormat.R8G8B8A8_UNORM:
case (TextureFormat)20: // R8G8B8A8_SRGB
//case GX2SurfaceFormat.TCS_R8_G8_B8_A8_SRGB:
{
Header header;
SetupHeader(out header, textureHeader);
header.PixelFormat.RedBitMask = 0x000000FF;
header.PixelFormat.GreenBitMask = 0x0000FF00;
header.PixelFormat.BlueBitMask = 0x00FF0000;
header.PixelFormat.AlphaBitMask = 0xFF000000;
header.PixelFormat.RGBBitCount = 32;
header.PitchOrLinearSize = (uint)textureHeader.Width * 4;
header.PixelFormat.Flags = PixelFormatFlags.RGBA;
header.Write(output, endian);
output.WriteBytes(data);
break;
}
case TextureFormat.R10G10B10A2_UNORM:
{
Header header;
SetupHeader(out header, textureHeader);
header.PixelFormat.RedBitMask = 0x000003FF;
header.PixelFormat.GreenBitMask = 0x000FFC00;
header.PixelFormat.BlueBitMask = 0x3FF00000;
header.PixelFormat.AlphaBitMask = 0xC0000000;
header.PixelFormat.RGBBitCount = 32;
header.PitchOrLinearSize = (uint)textureHeader.Width * 4;
header.PixelFormat.Flags = PixelFormatFlags.RGBA;
header.Write(output, endian);
output.WriteBytes(data);
break;
}
case TextureFormat.R32G32B32A32_FLOAT:
{
Header header;
SetupHeader(out header, textureHeader);
header.PixelFormat.FourCC = 0x00000074;
header.PitchOrLinearSize = (uint)textureHeader.Width * 16;
header.PixelFormat.Flags = (PixelFormatFlags)4;
header.Write(output, endian);
output.WriteBytes(data);
break;
}
case TextureFormat.R16G16B16A16_FLOAT:
{
Header header;
SetupHeader(out header, textureHeader);
header.PixelFormat.FourCC = 0x00000071;
header.PitchOrLinearSize = (uint)textureHeader.Width * 8;
header.PixelFormat.Flags = (PixelFormatFlags)4;
header.Write(output, endian);
output.WriteBytes(data);
break;
}
default:
{
throw new NotSupportedException();
}
}
}
