public void Load(Stream input)
{
uint num = (uint)input.ReadUInt32();
if (num != 0x20534444)
{
throw new FormatException("File does not appear to be a DDS image");
}
this.m_header.Read(input);
if ((this.m_header.m_pixelFormat.m_flags != 0) && ((this.m_header.m_pixelFormat.m_flags & 4) == 0))
{
DdsFileFormat format;
if ((((this.m_header.m_pixelFormat.m_flags == 0x41) && (this.m_header.m_pixelFormat.m_rgbBitCount == 0x20)) && ((this.m_header.m_pixelFormat.m_rBitMask == 0xff0000) && (this.m_header.m_pixelFormat.m_gBitMask == 0xff00))) && ((this.m_header.m_pixelFormat.m_bBitMask == 0xff) && (this.m_header.m_pixelFormat.m_aBitMask == 0xff000000)))
{
format = DdsFileFormat.DDS_FORMAT_A8R8G8B8;
}
else if ((((this.m_header.m_pixelFormat.m_flags == 0x40) && (this.m_header.m_pixelFormat.m_rgbBitCount == 0x20)) && ((this.m_header.m_pixelFormat.m_rBitMask == 0xff0000) && (this.m_header.m_pixelFormat.m_gBitMask == 0xff00))) && ((this.m_header.m_pixelFormat.m_bBitMask == 0xff) && (this.m_header.m_pixelFormat.m_aBitMask == 0)))
{
format = DdsFileFormat.DDS_FORMAT_X8R8G8B8;
}
else if ((((this.m_header.m_pixelFormat.m_flags == 0x41) && (this.m_header.m_pixelFormat.m_rgbBitCount == 0x20)) && ((this.m_header.m_pixelFormat.m_rBitMask == 0xff) && (this.m_header.m_pixelFormat.m_gBitMask == 0xff00))) && ((this.m_header.m_pixelFormat.m_bBitMask == 0xff0000) && (this.m_header.m_pixelFormat.m_aBitMask == 0xff000000)))
{
format = DdsFileFormat.DDS_FORMAT_A8B8G8R8;
}
else if ((((this.m_header.m_pixelFormat.m_flags == 0x40) && (this.m_header.m_pixelFormat.m_rgbBitCount == 0x20)) && ((this.m_header.m_pixelFormat.m_rBitMask == 0xff) && (this.m_header.m_pixelFormat.m_gBitMask == 0xff00))) && ((this.m_header.m_pixelFormat.m_bBitMask == 0xff0000) && (this.m_header.m_pixelFormat.m_aBitMask == 0)))
{
format = DdsFileFormat.DDS_FORMAT_X8B8G8R8;
}
else if ((((this.m_header.m_pixelFormat.m_flags == 0x41) && (this.m_header.m_pixelFormat.m_rgbBitCount == 0x10)) && ((this.m_header.m_pixelFormat.m_rBitMask == 0x7c00) && (this.m_header.m_pixelFormat.m_gBitMask == 0x3e0))) && ((this.m_header.m_pixelFormat.m_bBitMask == 0x1f) && (this.m_header.m_pixelFormat.m_aBitMask == 0x8000)))
{
format = DdsFileFormat.DDS_FORMAT_A1R5G5B5;
}
else if ((((this.m_header.m_pixelFormat.m_flags == 0x41) && (this.m_header.m_pixelFormat.m_rgbBitCount == 0x10)) && ((this.m_header.m_pixelFormat.m_rBitMask == 0xf00) && (this.m_header.m_pixelFormat.m_gBitMask == 240))) && ((this.m_header.m_pixelFormat.m_bBitMask == 15) && (this.m_header.m_pixelFormat.m_aBitMask == 0xf000)))
{
format = DdsFileFormat.DDS_FORMAT_A4R4G4B4;
}
else if ((((this.m_header.m_pixelFormat.m_flags == 0x40) && (this.m_header.m_pixelFormat.m_rgbBitCount == 0x18)) && ((this.m_header.m_pixelFormat.m_rBitMask == 0xff0000) && (this.m_header.m_pixelFormat.m_gBitMask == 0xff00))) && ((this.m_header.m_pixelFormat.m_bBitMask == 0xff) && (this.m_header.m_pixelFormat.m_aBitMask == 0)))
{
format = DdsFileFormat.DDS_FORMAT_R8G8B8;
}
else
{
if ((((this.m_header.m_pixelFormat.m_flags != 0x40) || (this.m_header.m_pixelFormat.m_rgbBitCount != 0x10)) || ((this.m_header.m_pixelFormat.m_rBitMask != 0xf800) || (this.m_header.m_pixelFormat.m_gBitMask != 0x7e0))) || ((this.m_header.m_pixelFormat.m_bBitMask != 0x1f) || (this.m_header.m_pixelFormat.m_aBitMask != 0)))
{
throw new FormatException("File is not a supported DDS format");
}
format = DdsFileFormat.DDS_FORMAT_R5G6B5;
}
int num6 = (int)(this.m_header.m_pixelFormat.m_rgbBitCount / 8);
int pitchOrLinearSize = 0;
if ((this.m_header.m_headerFlags & 8) != 0)
{
pitchOrLinearSize = (int)this.m_header.m_pitchOrLinearSize;
}
else if ((this.m_header.m_headerFlags & 0x80000) != 0)
{
pitchOrLinearSize = (int)(this.m_header.m_pitchOrLinearSize / this.m_header.m_height);
}
else
{
pitchOrLinearSize = (int)(this.m_header.m_width * num6);
}
byte[] buffer2 = new byte[pitchOrLinearSize * this.m_header.m_height];
input.Read(buffer2, 0, buffer2.GetLength(0));
this.m_pixelData = new byte[(this.m_header.m_width * this.m_header.m_height) * 4];
for (int i = 0; i < this.m_header.m_height; i++)
{
for (int j = 0; j < this.m_header.m_width; j++)
{
int num10 = (i * pitchOrLinearSize) + (j * num6);
uint num11 = 0;
uint num12 = 0;
uint num13 = 0;
uint num14 = 0;
uint num15 = 0;
for (int k = 0; k < num6; k++)
{
num11 |= (uint)(buffer2[num10 + k] << (8 * k));
}
switch (format)
{
case DdsFileFormat.DDS_FORMAT_A8R8G8B8:
num15 = (num11 >> 0x18) & 0xff;
num12 = (num11 >> 0x10) & 0xff;
num13 = (num11 >> 8) & 0xff;
num14 = num11 & 0xff;
break;
case DdsFileFormat.DDS_FORMAT_X8R8G8B8:
num15 = 0xff;
num12 = (num11 >> 0x10) & 0xff;
num13 = (num11 >> 8) & 0xff;
num14 = num11 & 0xff;
break;
case DdsFileFormat.DDS_FORMAT_A8B8G8R8:
num15 = (num11 >> 0x18) & 0xff;
num12 = num11 & 0xff;
num13 = (num11 >> 8) & 0xff;
num14 = (num11 >> 0x10) & 0xff;
break;
case DdsFileFormat.DDS_FORMAT_X8B8G8R8:
num15 = 0xff;
num12 = num11 & 0xff;
num13 = (num11 >> 8) & 0xff;
num14 = (num11 >> 0x10) & 0xff;
break;
case DdsFileFormat.DDS_FORMAT_A1R5G5B5:
num15 = (num11 >> 15) * 0xff;
num12 = (num11 >> 10) & 0x1f;
num13 = (num11 >> 5) & 0x1f;
num14 = num11 & 0x1f;
num12 = (num12 << 3) | (num12 >> 2);
num13 = (num13 << 3) | (num13 >> 2);
num14 = (num14 << 3) | (num14 >> 2);
break;
case DdsFileFormat.DDS_FORMAT_A4R4G4B4:
num15 = (num11 >> 12) & 0xff;
num12 = (num11 >> 8) & 15;
num13 = (num11 >> 4) & 15;
num14 = num11 & 15;
num15 = (num15 << 4) | num15;
num12 = (num12 << 4) | num12;
num13 = (num13 << 4) | num13;
num14 = (num14 << 4) | num14;
break;
case DdsFileFormat.DDS_FORMAT_R8G8B8:
num15 = 0xff;
num12 = (num11 >> 0x10) & 0xff;
num13 = (num11 >> 8) & 0xff;
num14 = num11 & 0xff;
break;
case DdsFileFormat.DDS_FORMAT_R5G6B5:
num15 = 0xff;
num12 = (num11 >> 11) & 0x1f;
num13 = (num11 >> 5) & 0x3f;
num14 = num11 & 0x1f;
num12 = (num12 << 3) | (num12 >> 2);
num13 = (num13 << 2) | (num13 >> 4);
num14 = (num14 << 3) | (num14 >> 2);
break;
}
int index = ((int)((i * this.m_header.m_width) * 4)) + (j * 4);
this.m_pixelData[index] = (byte)num12;
this.m_pixelData[index + 1] = (byte)num13;
this.m_pixelData[index + 2] = (byte)num14;
this.m_pixelData[index + 3] = (byte)num15;
}
}
}
else
{
int flags = 0;
switch (this.m_header.m_pixelFormat.m_fourCC)
{
case 0x31545844:
flags = 1;
break;
case 0x33545844:
flags = 2;
break;
case 0x35545844:
flags = 4;
break;
default:
throw new FormatException("File is not a supported DDS format");
}
int num3 = ((this.GetWidth() + 3) / 4) * ((this.GetHeight() + 3) / 4);
int num4 = ((flags & 1) != 0) ? 8 : 0x10;
byte[] buffer = new byte[num3 * num4];
input.Read(buffer, 0, buffer.GetLength(0));
this.m_pixelData = DdsSquish.DecompressImage(buffer, this.GetWidth(), this.GetHeight(), flags);
}
}
public void Save(Stream output, Surface surface, DdsFileFormat fileFormat, DdsCompressorType compressorType, DdsErrorMetric errorMetric, bool generateMipMaps, ResamplingAlgorithm mipMapResamplingAlgorithm, bool weightColorByAlpha, ProgressEventHandler progressCallback)
{
int num21;
int num = 0;
bool flag = ((fileFormat == DdsFileFormat.DDS_FORMAT_DXT1) || (fileFormat == DdsFileFormat.DDS_FORMAT_DXT3)) || (fileFormat == DdsFileFormat.DDS_FORMAT_DXT5);
int num2 = 1;
int mipWidth = surface.Width;
int height = surface.Height;
if (generateMipMaps)
{
while ((mipWidth > 1) || (height > 1))
{
num2++;
mipWidth /= 2;
height /= 2;
}
}
this.m_header.m_size = this.m_header.Size();
this.m_header.m_headerFlags = 0x1007;
if (flag)
{
this.m_header.m_headerFlags |= 0x80000;
}
else
{
this.m_header.m_headerFlags |= 8;
}
if (num2 > 1)
{
this.m_header.m_headerFlags |= 0x20000;
}
this.m_header.m_height = (uint)surface.Height;
this.m_header.m_width = (uint)surface.Width;
if (flag)
{
int num5 = ((surface.Width + 3) / 4) * ((surface.Height + 3) / 4);
int num6 = (fileFormat == DdsFileFormat.DDS_FORMAT_DXT1) ? 8 : 0x10;
this.m_header.m_pitchOrLinearSize = (uint)(num5 * num6);
}
else
{
switch (fileFormat)
{
case DdsFileFormat.DDS_FORMAT_A8R8G8B8:
case DdsFileFormat.DDS_FORMAT_X8R8G8B8:
case DdsFileFormat.DDS_FORMAT_A8B8G8R8:
case DdsFileFormat.DDS_FORMAT_X8B8G8R8:
num = 4;
break;
case DdsFileFormat.DDS_FORMAT_A1R5G5B5:
case DdsFileFormat.DDS_FORMAT_A4R4G4B4:
case DdsFileFormat.DDS_FORMAT_R5G6B5:
num = 2;
break;
case DdsFileFormat.DDS_FORMAT_R8G8B8:
num = 3;
break;
}
this.m_header.m_pitchOrLinearSize = (uint)(this.m_header.m_width * num);
}
this.m_header.m_depth = 0;
this.m_header.m_mipMapCount = (num2 == 1) ? 0 : ((uint)num2);
this.m_header.m_reserved1_0 = 0;
this.m_header.m_reserved1_1 = 0;
this.m_header.m_reserved1_2 = 0;
this.m_header.m_reserved1_3 = 0;
this.m_header.m_reserved1_4 = 0;
this.m_header.m_reserved1_5 = 0;
this.m_header.m_reserved1_6 = 0;
this.m_header.m_reserved1_7 = 0;
this.m_header.m_reserved1_8 = 0;
this.m_header.m_reserved1_9 = 0;
this.m_header.m_reserved1_10 = 0;
this.m_header.m_pixelFormat.Initialise(fileFormat);
this.m_header.m_surfaceFlags = 0x1000;
if (num2 > 1)
{
this.m_header.m_surfaceFlags |= 0x400008;
}
this.m_header.m_cubemapFlags = 0;
this.m_header.m_reserved2_0 = 0;
this.m_header.m_reserved2_1 = 0;
this.m_header.m_reserved2_2 = 0;
output.WriteUInt32(0x20534444);
this.m_header.Write(output);
int squishFlags = this.GetSquishFlags(fileFormat, compressorType, errorMetric, weightColorByAlpha);
mipWidth = surface.Width;
height = surface.Height;
SizeInt32[] numArray = new SizeInt32[num2];
int[] numArray2 = new int[num2];
int[] pixelsCompleted = new int[num2];
long totalPixels = 0L;
for (int i = 0; i < num2; i++)
{
SizeInt32 num8 = new SizeInt32((mipWidth > 0) ? mipWidth : 1, (height > 0) ? height : 1);
numArray[i] = num8;
int num9 = num8.Width * num8.Height;
numArray2[i] = num9;
if (i == 0)
{
pixelsCompleted[i] = 0;
}
else
{
pixelsCompleted[i] = pixelsCompleted[i - 1] + numArray2[i - 1];
}
totalPixels += num9;
mipWidth /= 2;
height /= 2;
}
mipWidth = surface.Width;
height = surface.Height;
for (int mipLoop = 0; mipLoop < num2; mipLoop = num21 + 1)
{
byte[] buffer;
SizeInt32 size = numArray[mipLoop];
Surface surface2 = new Surface(size);
if (mipLoop == 0)
{
surface2 = surface;
}
else
{
IRenderer <ColorBgra> renderer;
SizeInt32 newSize = surface2.Size <ColorBgra>();
switch (mipMapResamplingAlgorithm)
{
case ResamplingAlgorithm.NearestNeighbor:
renderer = surface.ResizeNearestNeighbor(newSize);
break;
case ResamplingAlgorithm.Bilinear:
renderer = surface.ResizeBilinear(newSize);
break;
case ResamplingAlgorithm.Bicubic:
renderer = surface.ResizeBicubic(newSize);
break;
case ResamplingAlgorithm.SuperSampling:
renderer = surface.ResizeSuperSampling(newSize);
break;
case ResamplingAlgorithm.Fant:
renderer = surface.ResizeFant(newSize);
break;
default:
throw ExceptionUtil.InvalidEnumArgumentException <ResamplingAlgorithm>(mipMapResamplingAlgorithm, "mipMapResamplingAlgorithm");
}
renderer.Render <ColorBgra>(surface2);
}
DdsSquish.ProgressFn fn = delegate(int workDone, int workTotal) {
long num = workDone * mipWidth;
long num2 = pixelsCompleted[mipLoop];
double num3 = (num + num2) / ((double)totalPixels);
progressCallback(this, new ProgressEventArgs(DoubleUtil.Clamp(100.0 * num3, 0.0, 100.0)));
};
if ((fileFormat >= DdsFileFormat.DDS_FORMAT_DXT1) && (fileFormat <= DdsFileFormat.DDS_FORMAT_DXT5))
{
buffer = DdsSquish.CompressImage(surface2, squishFlags, (progressCallback == null) ? null : fn);
}
else
{
int num12 = num * surface2.Width;
buffer = new byte[num12 * surface2.Height];
buffer.Initialize();
for (int j = 0; j < surface2.Height; j++)
{
for (int k = 0; k < surface2.Width; k++)
{
ColorBgra point = surface2.GetPoint(k, j);
uint num15 = 0;
switch (fileFormat)
{
case DdsFileFormat.DDS_FORMAT_A8R8G8B8:
num15 = (uint)((((point.A << 0x18) | (point.R << 0x10)) | (point.G << 8)) | point.B);
break;
case DdsFileFormat.DDS_FORMAT_X8R8G8B8:
num15 = (uint)(((point.R << 0x10) | (point.G << 8)) | point.B);
break;
case DdsFileFormat.DDS_FORMAT_A8B8G8R8:
num15 = (uint)((((point.A << 0x18) | (point.B << 0x10)) | (point.G << 8)) | point.R);
break;
case DdsFileFormat.DDS_FORMAT_X8B8G8R8:
num15 = (uint)(((point.B << 0x10) | (point.G << 8)) | point.R);
break;
case DdsFileFormat.DDS_FORMAT_A1R5G5B5:
num15 = (uint)((((((point.A != null) ? 1 : 0) << 15) | ((point.R >> 3) << 10)) | ((point.G >> 3) << 5)) | (point.B >> 3));
break;
case DdsFileFormat.DDS_FORMAT_A4R4G4B4:
num15 = (uint)(((((point.A >> 4) << 12) | ((point.R >> 4) << 8)) | ((point.G >> 4) << 4)) | (point.B >> 4));
break;
case DdsFileFormat.DDS_FORMAT_R8G8B8:
num15 = (uint)(((point.R << 0x10) | (point.G << 8)) | point.B);
break;
case DdsFileFormat.DDS_FORMAT_R5G6B5:
num15 = (uint)((((point.R >> 3) << 11) | ((point.G >> 2) << 5)) | (point.B >> 3));
break;
}
int num16 = (j * num12) + (k * num);
for (int m = 0; m < num; m++)
{
buffer[num16 + m] = (byte)((num15 >> (8 * m)) & 0xff);
}
}
if (progressCallback != null)
{
long num18 = (j + 1) * mipWidth;
long num19 = pixelsCompleted[mipLoop];
double num20 = (num18 + num19) / ((double)totalPixels);
progressCallback(this, new ProgressEventArgs(100.0 * num20));
}
}
}
output.Write(buffer, 0, buffer.GetLength(0));
mipWidth /= 2;
height /= 2;
num21 = mipLoop;
}
}