Incomplete DXT1a support.

src/nvtt/CompressDXT.cpp

@@ -241,8 +241,8 @@ void nv::compressDXT1a(const Image * image, const OutputOptions::Private & outpu
 			rgba.init(image, x, y);
 			
 			// Compress color.
+			squish::ColourSet colours((uint8 *)rgba.colors(), 0);
 			squish::WeightedClusterFit fit(&colours, squish::kDxt1);
-			squish::ClusterFit fit(&colours, squish::kDxt1);
 			fit.setMetric(compressionOptions.colorWeight.x(), compressionOptions.colorWeight.y(), compressionOptions.colorWeight.z());
 			fit.Compress(&block);
 			

src/nvtt/nvtt.cpp

@@ -224,11 +224,11 @@ static bool compressMipmap(const Image * image, const OutputOptions::Private & o
 		{
 			if (compressionOptions.useCuda && nv::cuda::isHardwarePresent())
 			{
-				/*cuda*/compressDXT1a(image, outputOptions);
+				/*cuda*/compressDXT1a(image, outputOptions, compressionOptions);
 			}
 			else
 			{
-				compressDXT1a(image, outputOptions);
+				compressDXT1a(image, outputOptions, compressionOptions);
 			}
 		}
 	}

src/nvtt/squish/colourset.cpp

@@ -43,7 +43,7 @@ ColourSet::ColourSet( u8 const* rgba, int flags )
 		{
 			m_remap[i] = -1;
 			m_transparent = true;
-			continue;
+		//	continue;
 		}
 		
 #if 1