/// <summary>
/// Compresses the specified image.
/// </summary>
/// <param name="image">The image.</param>
/// <param name="libraryData">The library data.</param>
/// <param name="compress">The compress.</param>
/// <exception cref="TexLibraryException">Compression failed</exception>
private void Compress(TexImage image, PvrTextureLibraryData libraryData, CompressingRequest compress)
{
Log.Info("Compressing to " + compress.Format + " ...");
ulong format = RetrieveNativeFormat(compress.Format);
EPVRTColourSpace colorSpace = RetrieveNativeColorSpace(compress.Format);
EPVRTVariableType pixelType = RetrieveNativePixelType(compress.Format);
lock (lockObject)
{
if (!Utilities.Transcode(libraryData.Texture, format, pixelType, colorSpace, (ECompressorQuality)compress.Quality, false))
{
Log.Error("Compression failed!");
throw new TextureToolsException("Compression failed!");
}
}
image.Format = compress.Format;
int pitch, slice;
Tools.ComputePitch(image.Format, image.Width, image.Height, out pitch, out slice);
image.RowPitch = pitch;
image.SlicePitch = slice;
UpdateImage(image, libraryData);
}
public void StartLibrary(TexImage image)
{
PvrTextureLibraryData libraryData = new PvrTextureLibraryData();
int imageArraySize = image.Dimension == TexImage.TextureDimension.TextureCube ? image.ArraySize / 6 : image.ArraySize;
int imageFaceCount = image.Dimension == TexImage.TextureDimension.TextureCube ? 6 : 1;
// Creating native header corresponding to the TexImage instance
ulong format = RetrieveNativeFormat(image.Format);
EPVRTColourSpace colorSpace = RetrieveNativeColorSpace(image.Format);
EPVRTVariableType pixelType = RetrieveNativePixelType(image.Format);
libraryData.Header = new PVRTextureHeader(format, image.Height, image.Width, image.Depth, image.MipmapCount, imageArraySize, imageFaceCount, colorSpace, pixelType);
int imageCount = 0;
int depth = image.Depth;
libraryData.Texture = new PVRTexture(libraryData.Header, IntPtr.Zero); // Initializing a new native texture, allocating memory.
// Copying TexImage data into the native texture allocated memory
try
{
for (uint i = 0; i < imageFaceCount; ++i)
{
for (uint j = 0; j < imageArraySize; ++j)
{
for (uint k = 0; k < image.MipmapCount; ++k)
{
Core.Utilities.CopyMemory(libraryData.Texture.GetDataPtr(k, j, i), image.SubImageArray[imageCount].Data, image.SubImageArray[imageCount].DataSize * depth);
imageCount += depth;
depth = depth > 1 ? depth >>= 1 : depth;
}
}
}
}
catch (AccessViolationException e)
{
libraryData.Texture.Dispose();
Log.Error("Failed to convert texture to PvrTexLib native data, check your texture settings. ", e);
throw new TextureToolsException("Failed to convert texture to PvrTexLib native data, check your texture settings. ", e);
}
// Freeing previous image data
if (image.DisposingLibrary != null)
{
image.DisposingLibrary.Dispose(image);
}
image.LibraryData[this] = libraryData;
image.DisposingLibrary = this;
}
public PVRTextureHeader(UInt64 pixelFormat, int height = 1, int width = 1, int depth = 1, int numMipMaps = 1, int numArrayMembers = 1, int numFaces = 1, EPVRTColourSpace eColourSpace = EPVRTColourSpace.ePVRTCSpacelRGB, EPVRTVariableType eChannelType = EPVRTVariableType.ePVRTVarTypeUnsignedByteNorm, bool bPreMultiplied = false)
{
header = pvrttCreateTextureHeaderFromCompressedTexture(pixelFormat, height, width, depth, numMipMaps, numArrayMembers, numFaces, eColourSpace, eChannelType, bPreMultiplied);
}
private extern static IntPtr pvrttCreateTextureHeaderFromCompressedTexture(UInt64 pixelFormat, int height, int width, int depth, int numMipMaps, int numArrayMembers, int numFaces, EPVRTColourSpace eColourSpace, EPVRTVariableType eChannelType, bool bPreMultiplied);
public static bool Transcode(PVRTexture sTexture, UInt64 ptFormat, EPVRTVariableType eChannelType, EPVRTColourSpace eColourspace, ECompressorQuality eQuality = ECompressorQuality.ePVRTCNormal, bool bDoDither = false)
{
return(pvrttTranscode(sTexture.texture, ptFormat, eChannelType, eColourspace, eQuality, bDoDither));
}
private extern static bool pvrttTranscode(IntPtr texture, UInt64 ptFormat, EPVRTVariableType eChannelType, EPVRTColourSpace eColourspace, ECompressorQuality eQuality, bool bDoDither);
public PVRTextureHeader(UInt64 pixelFormat, int height=1, int width=1, int depth=1, int numMipMaps=1, int numArrayMembers=1, int numFaces=1, EPVRTColourSpace eColourSpace=EPVRTColourSpace.ePVRTCSpacelRGB, EPVRTVariableType eChannelType=EPVRTVariableType.ePVRTVarTypeUnsignedByteNorm, bool bPreMultiplied=false)
{
header = pvrttCreateTextureHeaderFromCompressedTexture(pixelFormat, height, width, depth, numMipMaps, numArrayMembers, numFaces, eColourSpace, eChannelType, bPreMultiplied);
}
private extern static IntPtr pvrttCreateTextureHeaderFromCompressedTexture(UInt64 pixelFormat, int height, int width, int depth, int numMipMaps, int numArrayMembers, int numFaces, EPVRTColourSpace eColourSpace, EPVRTVariableType eChannelType, bool bPreMultiplied);
public static bool Transcode(PVRTexture sTexture, UInt64 ptFormat, EPVRTVariableType eChannelType, EPVRTColourSpace eColourspace, ECompressorQuality eQuality = ECompressorQuality.ePVRTCNormal, bool bDoDither = false)
{
return pvrttTranscode(sTexture.texture, ptFormat, eChannelType, eColourspace, eQuality, bDoDither);
}
private extern static bool pvrttTranscode(IntPtr texture, UInt64 ptFormat, EPVRTVariableType eChannelType, EPVRTColourSpace eColourspace, ECompressorQuality eQuality, bool bDoDither);
