public void Load(Stream stream)
{
Name = FileInfo.FileName;
using (var reader = new FileReader(stream))
{
MainHeader = reader.ReadStruct <Header>();
PfHeader = reader.ReadStruct <DDSPFHeader>();
if (IsDX10)
{
Dx10Header = reader.ReadStruct <DX10Header>();
}
byte[] Components = new byte[4] {
0, 1, 2, 3
};
bool Compressed = false;
bool HasLuminance = false;
bool HasAlpha = false;
bool IsRGB = false;
switch (PfHeader.Flags)
{
case 4:
Compressed = true;
break;
case 2:
case (uint)DDPF.LUMINANCE:
HasLuminance = true;
break;
case (uint)DDPF.RGB:
IsRGB = true;
break;
case 0x41:
IsRGB = true;
HasAlpha = true;
break;
}
ToGenericFormat();
if (!IsDX10 && !this.IsBCNCompressed())
{
Platform.OutputFormat = DDS_RGBA.GetUncompressedType(this, Components, IsRGB, HasAlpha, HasLuminance, PfHeader);
}
Depth = 1;
Width = MainHeader.Width;
Height = MainHeader.Height;
MipCount = MainHeader.MipCount == 0 ? 1 : MainHeader.MipCount;
ArrayCount = IsCubeMap ? (uint)6 : 1;
}
}
public void SetFlags(TexFormat format, bool isDX10, bool isCubemap)
{
var dxgiFormat = (DXGI_FORMAT)format;
MainHeader.Flags = (uint)(DDSD.CAPS | DDSD.HEIGHT | DDSD.WIDTH | DDSD.PIXELFORMAT | DDSD.MIPMAPCOUNT | DDSD.LINEARSIZE);
PfHeader.Caps1 = (uint)DDSCAPS.TEXTURE;
if (MainHeader.MipCount > 1)
{
PfHeader.Caps1 |= (uint)(DDSCAPS.COMPLEX | DDSCAPS.MIPMAP);
}
if (isCubemap)
{
PfHeader.Caps2 |= (uint)(DDSCAPS2.CUBEMAP | DDSCAPS2.CUBEMAP_POSITIVEX | DDSCAPS2.CUBEMAP_NEGATIVEX |
DDSCAPS2.CUBEMAP_POSITIVEY | DDSCAPS2.CUBEMAP_NEGATIVEY |
DDSCAPS2.CUBEMAP_POSITIVEZ | DDSCAPS2.CUBEMAP_NEGATIVEZ);
}
if (isDX10)
{
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_DX10;
Dx10Header.DxgiFormat = (uint)dxgiFormat;
if (isCubemap)
{
Dx10Header.ArrayCount = (ArrayCount / 6);
Dx10Header.MiscFlags1 = 0x4;
}
return;
}
var masks = DDS_RGBA.GetMasks(format);
PfHeader.RBitMask = masks[0];
PfHeader.GBitMask = masks[1];
PfHeader.BBitMask = masks[2];
PfHeader.ABitMask = masks[3];
PfHeader.RgbBitCount = 0x8 * TextureFormatHelper.GetBytesPerPixel(format);
PfHeader.Flags = (uint)(DDPF.RGB | DDPF.ALPHAPIXELS);
switch (format)
{
case TexFormat.RGBA8_UNORM:
case TexFormat.RGB8_SRGB:
break;
case TexFormat.RGB565_UNORM:
PfHeader.Flags = (uint)(DDPF.RGB | DDPF.ALPHAPIXELS);
break;
case TexFormat.BC1_SRGB:
case TexFormat.BC1_UNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_DXT1;
break;
case TexFormat.BC2_SRGB:
case TexFormat.BC2_UNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_DXT3;
break;
case TexFormat.BC3_SRGB:
case TexFormat.BC3_UNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_DXT5;
break;
case TexFormat.BC4_UNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_BC4U;
break;
case TexFormat.BC4_SNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_BC4S;
break;
case TexFormat.BC5_UNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_BC5U;
break;
case TexFormat.BC5_SNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_BC5S;
break;
case TexFormat.BC6H_SF16:
case TexFormat.BC6H_UF16:
case TexFormat.BC7_UNORM:
case TexFormat.BC7_SRGB:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_DX10;
if (Dx10Header == null)
{
Dx10Header = new DX10Header();
}
Dx10Header.DxgiFormat = (uint)dxgiFormat;
break;
}
}
