diff --git a/src/osgPlugins/dds/ReaderWriterDDS.cpp b/src/osgPlugins/dds/ReaderWriterDDS.cpp index 599d1a90a..ceb3ca39b 100644 --- a/src/osgPlugins/dds/ReaderWriterDDS.cpp +++ b/src/osgPlugins/dds/ReaderWriterDDS.cpp @@ -222,6 +222,7 @@ struct DXT1TexelsBlock // #define DDPF_ALPHAPIXELS 0x00000001l #define DDPF_FOURCC 0x00000004l // Compressed formats +#define DDPF_PALETTEINDEXED8 0x00000020l #define DDPF_RGB 0x00000040l // Uncompressed formats #define DDPF_ALPHA 0x00000002l #define DDPF_COMPRESSED 0x00000080l @@ -944,6 +945,12 @@ osg::Image* ReadDDSFile(std::istream& _istream, bool flipDDSRead) internalFormat = GL_ALPHA; pixelFormat = GL_ALPHA; } + else if (ddsd.ddpfPixelFormat.dwFlags & DDPF_PALETTEINDEXED8) + { + OSG_INFO << "ReadDDSFile info : format = PALETTEINDEXED8" << std::endl; + // The indexed data needs to first be loaded as a single-component image. + pixelFormat = GL_RED; + } else { OSG_WARN << "ReadDDSFile warning: unhandled pixel format (ddsd.ddpfPixelFormat.dwFlags" @@ -984,6 +991,17 @@ osg::Image* ReadDDSFile(std::istream& _istream, bool flipDDSRead) OSG_INFO<<"ReadDDS, dataType = 0x"<setImage(s,t,r, internalFormat, pixelFormat, dataType, imageData, osg::Image::USE_NEW_DELETE, packing); + if (ddsd.ddpfPixelFormat.dwFlags & DDPF_PALETTEINDEXED8) + { + // Now we need to substitute the indexed image data with full RGBA image data. + unsigned char* convertedData = new unsigned char [sizeWithMipmaps * 4]; + for (unsigned int i = 0; i < sizeWithMipmaps; i++) + { + convertedData[i * 4 + 0] = palette[imageData[i] * 4 + 0]; + convertedData[i * 4 + 1] = palette[imageData[i] * 4 + 1]; + convertedData[i * 4 + 2] = palette[imageData[i] * 4 + 2]; + convertedData[i * 4 + 3] = palette[imageData[i] * 4 + 3]; + } + for (unsigned int i = 0; i < mipmap_offsets.size(); i++) + mipmap_offsets[i] *= 4; + internalFormat = GL_RGBA; + pixelFormat = GL_RGBA; + osgImage->setImage(s,t,r, internalFormat, pixelFormat, dataType, convertedData, osg::Image::USE_NEW_DELETE, packing); + } + else + { + osgImage->setImage(s,t,r, internalFormat, pixelFormat, dataType, imageData, osg::Image::USE_NEW_DELETE, packing); + } if (mipmap_offsets.size()>0) osgImage->setMipmapLevels(mipmap_offsets);