Exemple #1
0
        // Note that many common DDS reader/writers (including D3DX) swap the
        // the RED/BLUE masks for 10:10:10:2 formats. We assume
        // below that the 'backwards' header mask is being used since it is most
        // likely written by D3DX. The more robust solution is to use the 'DX10'
        // header extension and specify the Format.R10G10B10A2_UNorm format directly

        // We do not support the following legacy Direct3D 9 formats:
        //      BumpDuDv D3DFMT_V8U8, D3DFMT_Q8W8V8U8, D3DFMT_V16U16, D3DFMT_A2W10V10U10
        //      BumpLuminance D3DFMT_L6V5U5, D3DFMT_X8L8V8U8
        //      FourCC "UYVY" D3DFMT_UYVY
        //      FourCC "YUY2" D3DFMT_YUY2
        //      FourCC 117 D3DFMT_CxV8U8
        //      ZBuffer D3DFMT_D16_LOCKABLE
        //      FourCC 82 D3DFMT_D32F_LOCKABLE
        public static PixelFormats GetDXGIFormat(ref DDS.PixelFormat pixelFormat, out ConversionFlags conversionFlags, DDSFlags flags = DDSFlags.None)
        {
            conversionFlags = ConversionFlags.None;

            int index = 0;

            for (index = 0; index < LegacyMaps.Length; ++index)
            {
                var entry = LegacyMaps[index];

                if ((pixelFormat.Flags & entry.PixelFormat.Flags) != 0)
                {
                    if ((entry.PixelFormat.Flags & DDS.PixelFormatFlags.FourCC) != 0)
                    {
                        if (pixelFormat.FourCC == entry.PixelFormat.FourCC)
                        {
                            break;
                        }
                    }
                    else if ((entry.PixelFormat.Flags & DDS.PixelFormatFlags.Pal8) != 0)
                    {
                        if (pixelFormat.RGBBitCount == entry.PixelFormat.RGBBitCount)
                        {
                            break;
                        }
                    }
                    else if (pixelFormat.RGBBitCount == entry.PixelFormat.RGBBitCount)
                    {
                        // RGB, RGBA, ALPHA, LUMINANCE
                        if (pixelFormat.RBitMask == entry.PixelFormat.RBitMask &&
                            pixelFormat.GBitMask == entry.PixelFormat.GBitMask &&
                            pixelFormat.BBitMask == entry.PixelFormat.BBitMask &&
                            pixelFormat.ABitMask == entry.PixelFormat.ABitMask)
                        {
                            break;
                        }
                    }
                }
            }

            if (index >= LegacyMaps.Length)
            {
                return(PixelFormats.UNKNOWN);
            }

            conversionFlags = LegacyMaps[index].ConversionFlags;
            var format = LegacyMaps[index].Format;

            if ((conversionFlags & ConversionFlags.Expand) != 0 && (flags & DDSFlags.NoLegacyExpansion) != 0)
            {
                return(PixelFormats.UNKNOWN);
            }

            if ((format == PixelFormats.R10G10B10A2_UNORM) && (flags & DDSFlags.NoR10B10G10A2Fixup) != 0)
            {
                conversionFlags ^= ConversionFlags.Swizzle;
            }

            return(format);
        }
Exemple #2
0
 /// <summary>
 /// Initializes a new instance of the <see cref="LegacyMap" /> struct.
 /// </summary>
 /// <param name="format">The format.</param>
 /// <param name="conversionFlags">The conversion flags.</param>
 /// <param name="pixelFormat">The pixel format.</param>
 public LegacyMap(PixelFormats format, ConversionFlags conversionFlags, DDS.PixelFormat pixelFormat)
 {
     Format          = format;
     ConversionFlags = conversionFlags;
     PixelFormat     = pixelFormat;
 }
 /// <summary>
 /// Initializes a new instance of the <see cref="LegacyMap" /> struct.
 /// </summary>
 /// <param name="format">The format.</param>
 /// <param name="conversionFlags">The conversion flags.</param>
 /// <param name="pixelFormat">The pixel format.</param>
 public LegacyMap(PixelFormats format, ConversionFlags conversionFlags, DDS.PixelFormat pixelFormat)
 {
     Format = format;
     ConversionFlags = conversionFlags;
     PixelFormat = pixelFormat;
 }