reorg.

src/nvtt/CMakeLists.txt

@@ -9,6 +9,7 @@ SET(NVTT_SRCS
 	Context.cpp
 	nvtt_wrapper.h
 	nvtt_wrapper.cpp
+	Compressor.h
 	CompressDXT.h
 	CompressDXT.cpp
 	CompressRGB.h

src/nvtt/Compressor.h

@@ -0,0 +1,40 @@
+// Copyright Ignacio Castano <icastano@nvidia.com> 2009
+// 
+// Permission is hereby granted, free of charge, to any person
+// obtaining a copy of this software and associated documentation
+// files (the "Software"), to deal in the Software without
+// restriction, including without limitation the rights to use,
+// copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following
+// conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+
+#ifndef NV_TT_COMPRESSOR_H
+#define NV_TT_COMPRESSOR_H
+
+#include <nvcore/nvcore.h> // uint
+#include "nvtt.h"
+
+namespace nv
+{
+	struct CompressorInterface
+	{
+		virtual ~CompressorInterface() {}
+		virtual void compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, const void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions) = 0;
+	};
+
+} // nv namespace
+
+#endif // NV_TT_COMPRESSOR_H

src/nvtt/CompressorDXT.cpp

@@ -21,7 +21,7 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 
-#include "CompressDXT.h"
+#include "CompressorDXT.h"
 #include "QuickCompressDXT.h"
 #include "OptimalCompressDXT.h"
 #include "CompressionOptions.h"
@@ -32,13 +32,13 @@
 #include "squish/fastclusterfit.h"
 #include "squish/weightedclusterfit.h"
 
-#include <nvtt/nvtt.h>
+#include "nvtt.h"
 
-#include <nvcore/Memory.h>
+#include "nvcore/Memory.h"
 
-#include <nvimage/Image.h>
-#include <nvimage/ColorBlock.h>
-#include <nvimage/BlockDXT.h>
+#include "nvimage/Image.h"
+#include "nvimage/ColorBlock.h"
+#include "nvimage/BlockDXT.h"
 
 
 // s3_quant
@@ -71,16 +71,15 @@ typedef ULONG_PTR DWORD_PTR;
 #include "stb/stb_dxt.h"
 #endif
 
-// OpenMP
-#if defined (HAVE_OPENMP)
+#pragma message(NV_FILE_LINE "FIXME: Define HAVE_OPENMP from cmake.")
+#define HAVE_OPENMP
 #include <omp.h>
-#endif
 
 using namespace nv;
 using namespace nvtt;
 
 
-void FixedBlockCompressor::compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions)
+void FixedBlockCompressor::compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, const void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions)
 {
 	const uint bs = blockSize();
 	const uint bw = (w + 3) / 4;

src/nvtt/CompressorDXT.h

@@ -21,26 +21,20 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 
-#ifndef NV_TT_COMPRESSDXT_H
-#define NV_TT_COMPRESSDXT_H
+#ifndef NV_TT_COMPRESSORDXT_H
+#define NV_TT_COMPRESSORDXT_H
 
-#include <nvimage/nvimage.h>
+#include <nvcore/nvcore.h>
 #include "nvtt.h"
+#include "Compressor.h"
 
 namespace nv
 {
-	class Image;
 	struct ColorBlock;
 
-	struct CompressorInterface
-	{
-		virtual ~CompressorInterface() {}
-		virtual void compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions) = 0;
-	};
-
 	struct FixedBlockCompressor : public CompressorInterface
 	{
-		virtual void compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions);
+		virtual void compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, const void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions);
 
 		virtual void compressBlock(ColorBlock & rgba, nvtt::AlphaMode alphaMode, const nvtt::CompressionOptions::Private & compressionOptions, void * output) = 0;
 		virtual uint blockSize() const = 0;
@@ -182,4 +176,4 @@ namespace nv
 } // nv namespace
 
 
-#endif // NV_TT_COMPRESSDXT_H
+#endif // NV_TT_COMPRESSORDXT_H

src/nvtt/CompressorRGB.cpp

@@ -21,7 +21,7 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 
-#include "CompressRGB.h"
+#include "CompressorRGB.h"
 #include "CompressionOptions.h"
 #include "OutputOptions.h"
 
@@ -61,8 +61,119 @@ namespace
 } // namespace
 
 
+
+void PixelFormatConverter::compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, const void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions)
+{
+	uint bitCount;
+	uint rmask, rshift, rsize;
+	uint gmask, gshift, gsize;
+	uint bmask, bshift, bsize;
+	uint amask, ashift, asize;
+
+    if (compressionOptions.pixelType == nvtt::PixelType_Float)
+    {
+	    rsize = compressionOptions.rsize;
+	    gsize = compressionOptions.gsize;
+	    bsize = compressionOptions.bsize;
+	    asize = compressionOptions.asize;
+
+	    nvCheck(rsize == 0 || rsize == 16 || rsize == 32);
+	    nvCheck(gsize == 0 || gsize == 16 || gsize == 32);
+	    nvCheck(bsize == 0 || bsize == 16 || bsize == 32);
+	    nvCheck(asize == 0 || asize == 16 || asize == 32);
+
+	    bitCount = rsize + gsize + bsize + asize;
+    }
+    else
+    {
+	    if (compressionOptions.bitcount != 0)
+	    {
+		    bitCount = compressionOptions.bitcount;
+		    nvCheck(bitCount == 8 || bitCount == 16 || bitCount == 24 || bitCount == 32);
+
+		    rmask = compressionOptions.rmask;
+		    gmask = compressionOptions.gmask;
+		    bmask = compressionOptions.bmask;
+		    amask = compressionOptions.amask;
+
+		    PixelFormat::maskShiftAndSize(rmask, &rshift, &rsize);
+		    PixelFormat::maskShiftAndSize(gmask, &gshift, &gsize);
+		    PixelFormat::maskShiftAndSize(bmask, &bshift, &bsize);
+		    PixelFormat::maskShiftAndSize(amask, &ashift, &asize);
+	    }
+	    else
+	    {
+		    rsize = compressionOptions.rsize;
+		    gsize = compressionOptions.gsize;
+		    bsize = compressionOptions.bsize;
+		    asize = compressionOptions.asize;
+
+		    bitCount = rsize + gsize + bsize + asize;
+		    nvCheck(bitCount <= 32);
+
+		    ashift = 0;
+		    bshift = ashift + asize;
+		    gshift = bshift + bsize;
+		    rshift = gshift + gsize;
+
+		    rmask = ((1 << rsize) - 1) << rshift;
+		    gmask = ((1 << gsize) - 1) << gshift;
+		    bmask = ((1 << bsize) - 1) << bshift;
+		    amask = ((1 << asize) - 1) << ashift;
+	    }
+    }
+
+	uint byteCount = (bitCount + 7) / 8;
+    uint pitch = computePitch(w, bitCount);
+
+    uint srcPitchDiv4 = w;
+    if (inputFormat == nvtt::InputFormat_RGBA_32F) srcPitchDiv4 = w * 4;
+
+    // Allocate output scanline.
+	uint8 * dst = (uint8 *)mem::malloc(pitch + 4);
+
+	for (uint y = 0; y < h; y++)
+	{
+        const uint * src = (const uint *)data + srcPitchDiv4;
+
+		for (uint x = 0; x < w; x++)
+		{
+            float r, g, b, a;
+
+            if (inputFormat == nvtt::InputFormat_BGRA_8UB) {
+                Color32 c = Color32(src[x]);
+                r = float(c.r) / 255.0f;
+                g = float(c.g) / 255.0f;
+                b = float(c.b) / 255.0f;
+                a = float(c.a) / 255.0f;
+            }
+            else /*if (inputFormat == nvtt::InputFormat_RGBA_32F)*/ {
+			    r = src[4 * x + 0];
+			    g = src[4 * x + 1];
+			    b = src[4 * x + 2];
+			    a = src[4 * x + 3];
+            }
+
+            if (compressionOptions.pixelType == nvtt::PixelType_Float)
+            {
+
+            }
+            
+        }
+
+		if (outputOptions.outputHandler != NULL)
+		{
+			outputOptions.outputHandler->writeData(dst, pitch);
+		}
+    }
+
+	mem::free(dst);
+}
+
+
+
 // Pixel format converter.
-void nv::compressRGB(const Image * image, const OutputOptions::Private & outputOptions, const CompressionOptions::Private & compressionOptions)
+void compressRGB(const Image * image, const OutputOptions::Private & outputOptions, const CompressionOptions::Private & compressionOptions)
 {
 	nvCheck(image != NULL);
 
@@ -166,7 +277,7 @@ void nv::compressRGB(const Image * image, const OutputOptions::Private & outputO
 }
 
 
-void nv::compressRGB(const FloatImage * image, const OutputOptions::Private & outputOptions, const CompressionOptions::Private & compressionOptions)
+void compressRGB(const FloatImage * image, const OutputOptions::Private & outputOptions, const CompressionOptions::Private & compressionOptions)
 {
 	nvCheck(image != NULL);
 

src/nvtt/CompressorRGB.h

@@ -21,21 +21,20 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 
-#ifndef NV_TT_COMPRESSRGB_H
-#define NV_TT_COMPRESSRGB_H
+#ifndef NV_TT_COMPRESSORRGB_H
+#define NV_TT_COMPRESSORRGB_H
 
 #include "nvtt.h"
+#include "Compressor.h"
 
 namespace nv
 {
-	class Image;
-	class FloatImage;
+    struct PixelFormatConverter : public CompressorInterface
+	{
+		virtual void compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, const void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions);
+	};
 
-	// Pixel format converter.
-	void compressRGB(const Image * image, const nvtt::OutputOptions::Private & outputOptions, const nvtt::CompressionOptions::Private & compressionOptions);
-	void compressRGB(const FloatImage * image, const nvtt::OutputOptions::Private & outputOptions, const nvtt::CompressionOptions::Private & compressionOptions);
-	
 } // nv namespace
 
 
-#endif // NV_TT_COMPRESSDXT_H
+#endif // NV_TT_COMPRESSORRGB_H

src/nvtt/Context.cpp

@@ -43,10 +43,10 @@
 #include "CompressionOptions.h"
 #include "OutputOptions.h"
 
-#include "CompressDXT.h"
-#include "CompressRGB.h"
+#include "CompressorDXT.h"
+#include "CompressorRGB.h"
 #include "cuda/CudaUtils.h"
-#include "cuda/CudaCompressDXT.h"
+#include "cuda/CudaCompressorDXT.h"
 
 
 using namespace nv;
@@ -303,8 +303,7 @@ int Compressor::estimateSize(const InputOptions & inputOptions, const Compressio
 // RAW api.
 bool Compressor::compress2D(InputFormat format, int w, int h, void * data, const CompressionOptions & compressionOptions, const OutputOptions & outputOptions) const
 {
-#pragma message(NV_FILE_LINE "TODO: Implement raw compress api")
-	return false;
+    return m.compress2D(format, AlphaMode_None, w, h, data, compressionOptions.m, outputOptions.m);
 }
 
 int Compressor::estimateSize(int w, int h, int d, const CompressionOptions & compressionOptions) const
@@ -955,7 +954,11 @@ bool Compressor::Private::compressMipmaps(uint f, const InputOptions::Private &
 			quantizeMipmap(mipmap, compressionOptions);
 		}
 
-		compressMipmap(mipmap, inputOptions, compressionOptions, outputOptions);
+	    const Image * image = mipmap.asFixedImage();
+	    nvDebugCheck(image != NULL);
+
+        // @@ Ignore return value?
+        compress2D(InputFormat_BGRA_8UB, inputOptions.alphaMode, image->width(), image->height(), image->pixels(), compressionOptions, outputOptions);
 
 		// Compute extents of next mipmap:
 		w = max(1U, w / 2);
@@ -1290,7 +1293,11 @@ void Compressor::Private::quantizeMipmap(Mipmap & mipmap, const CompressionOptio
 
 CompressorInterface * Compressor::Private::chooseCpuCompressor(const CompressionOptions::Private & compressionOptions) const
 {
-	if (compressionOptions.format == Format_DXT1)
+    if (compressionOptions.format == Format_RGB)
+    {
+        return new PixelFormatConverter;
+    }
+	else if (compressionOptions.format == Format_DXT1)
 	{
 #if defined(HAVE_S3QUANT)
 		if (compressionOptions.externalCompressor == "s3") return new S3CompressorDXT1;
@@ -1414,6 +1421,7 @@ CompressorInterface * Compressor::Private::chooseGpuCompressor(const Compression
 		return NULL;
 	}
 
+#if defined HAVE_CUDA
 	if (compressionOptions.format == Format_DXT1)
 	{
 		return new CudaCompressorDXT1(*cuda);
@@ -1428,11 +1436,11 @@ CompressorInterface * Compressor::Private::chooseGpuCompressor(const Compression
 	}
 	else if (compressionOptions.format == Format_DXT3)
 	{
-		return new CudaCompressorDXT3(*cuda);
+		//return new CudaCompressorDXT3(*cuda);
 	}
 	else if (compressionOptions.format == Format_DXT5)
 	{
-		return new CudaCompressorDXT5(*cuda);
+		//return new CudaCompressorDXT5(*cuda);
 	}
 	else if (compressionOptions.format == Format_DXT5n)
 	{
@@ -1458,6 +1466,7 @@ CompressorInterface * Compressor::Private::chooseGpuCompressor(const Compression
 	{
 		// Not supported.
 	}
+#endif // defined HAVE_CUDA
 
 	return NULL;
 }
@@ -1465,52 +1474,44 @@ CompressorInterface * Compressor::Private::chooseGpuCompressor(const Compression
 
 
 // Compress the given mipmap.
-bool Compressor::Private::compressMipmap(const Mipmap & mipmap, const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions) const
+/*bool Compressor::Private::compressMipmap(const Mipmap & mipmap, const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions) const
+{
+    // @@ This is broken, we should not assume the fixed image is the valid one. @@ Compressor should do conversion if necessary.
+	const Image * image = mipmap.asFixedImage();
+	nvDebugCheck(image != NULL);
+
+    return compress2D(InputFormat_BGRA_8UB, inputOptions.alphaMode, image->width(), image->height(), image->pixels(), compressionOptions, outputOptions);
+}*/
+
+bool Compressor::Private::compress2D(InputFormat inputFormat, AlphaMode alphaMode, int w, int h, const void * data, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions) const
 {
-	if (compressionOptions.format == Format_RGBA)
+	// Decide what compressor to use.
+	CompressorInterface * compressor = NULL;
+#if defined HAVE_CUDA
+	if (cudaEnabled && w * h >= 512)
 	{
-		// Pixel format conversion.
-		if (compressionOptions.pixelType == PixelType_Float)
-		{
-			compressRGB(mipmap.asFloatImage(), outputOptions, compressionOptions);
-		}
-		else
-		{
-			compressRGB(mipmap.asFixedImage(), outputOptions, compressionOptions);
-		}
+		compressor = chooseGpuCompressor(compressionOptions);
 	}
-	else
+#endif
+	if (compressor == NULL)
 	{
-		const Image * image = mipmap.asFixedImage();
-		nvDebugCheck(image != NULL);
-
-		// Decide what compressor to use.
-		CompressorInterface * compressor = NULL;
-		if (cudaEnabled && image->width() * image->height() >= 512)
-		{
-			compressor = chooseGpuCompressor(compressionOptions);
-		}
-		if (compressor == NULL)
-		{
-			compressor = chooseCpuCompressor(compressionOptions);
-		}
+		compressor = chooseCpuCompressor(compressionOptions);
+	}
 
-		if (compressor == NULL)
-		{
-			if (outputOptions.errorHandler) outputOptions.errorHandler->error(Error_UnsupportedFeature);
-		}
-		else
-		{
-			compressor->compress(InputFormat_BGRA_8UB, inputOptions.alphaMode, image->width(), image->height(), (void *)image->pixels(), compressionOptions, outputOptions);
+	if (compressor == NULL)
+	{
+		if (outputOptions.errorHandler) outputOptions.errorHandler->error(Error_UnsupportedFeature);
+	}
+	else
+	{
+		compressor->compress(inputFormat, alphaMode, w, h, data, compressionOptions, outputOptions);
 
-			delete compressor;
-		}
+		delete compressor;
 	}
 
 	return true;
 }
 
-
 int Compressor::Private::estimateSize(const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions) const
 {
 	const Format format = compressionOptions.format;

src/nvtt/Context.h

@@ -21,14 +21,13 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 
-#ifndef NV_TT_COMPRESSOR_H
-#define NV_TT_COMPRESSOR_H
+#ifndef NV_TT_CONTEXT_H
+#define NV_TT_CONTEXT_H
 
-#include <nvcore/Ptr.h>
-
-#include <nvtt/cuda/CudaCompressDXT.h>
-#include <nvtt/CompressDXT.h>
+#include "nvcore/Ptr.h"
 
+#include "nvtt/Compressor.h"
+#include "nvtt/cuda/CudaCompressorDXT.h"
 #include "nvtt.h"
 
 namespace nv
@@ -46,7 +45,7 @@ namespace nvtt
 
 		bool compress(const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions) const;
 
-		bool compress(const void * data, int width, int height, const CompressionOptions & compressionOptions, const OutputOptions & outputOptions) const;
+        bool compress2D(InputFormat inputFormat, AlphaMode alphaMode, int w, int h, const void * data, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions) const;
 
 		int estimateSize(const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions) const;
 
@@ -71,7 +70,6 @@ namespace nvtt
 		void premultiplyAlphaMipmap(Mipmap & mipmap, const InputOptions::Private & inputOptions) const;
 		void processInputImage(Mipmap & mipmap, const InputOptions::Private & inputOptions) const;
 		void quantizeMipmap(Mipmap & mipmap, const CompressionOptions::Private & compressionOptions) const;
-		bool compressMipmap(const Mipmap & mipmap, const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions) const;
 
 
 	public:
@@ -86,4 +84,4 @@ namespace nvtt
 } // nvtt namespace
 
 
-#endif // NV_TT_COMPRESSOR_H
+#endif // NV_TT_CONTEXT_H

src/nvtt/cuda/CudaCompressorDXT.cpp

@@ -32,7 +32,7 @@
 #include <nvtt/QuickCompressDXT.h>
 #include <nvtt/OptimalCompressDXT.h>
 
-#include "CudaCompressDXT.h"
+#include "CudaCompressorDXT.h"
 #include "CudaUtils.h"
 
 
@@ -62,8 +62,7 @@ extern "C" void compressKernelDXT3(uint firstBlock, uint blockNum, uint w, uint
 //extern "C" void compressKernelCTX1(uint blockNum, uint * d_data, uint * d_result, uint * d_bitmaps);
 
 
-#pragma message(NV_FILE_LINE "TODO: Rename Bitmaps.h to BitmapTable.h")
-#include "Bitmaps.h"
+#include "BitmapTable.h"
 
 /*
 // Convert linear image to block linear.
@@ -141,13 +140,14 @@ bool CudaContext::isValid() const
 }
 
 
+#if defined HAVE_CUDA
 
 CudaCompressor::CudaCompressor(CudaContext & ctx) : m_ctx(ctx)
 {
 
 }
 
-void CudaCompressor::compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions)
+void CudaCompressor::compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, const void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions)
 {
 	nvDebugCheck(cuda::isHardwarePresent());
 
@@ -645,3 +645,5 @@ void CudaCompressor::compressDXT5n(const nvtt::CompressionOptions::Private & com
 }
 
 #endif // 0
+
+#endif // defined HAVE_CUDA

src/nvtt/cuda/CudaCompressorDXT.h

@@ -21,20 +21,16 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 
-#ifndef NV_TT_CUDACOMPRESSDXT_H
-#define NV_TT_CUDACOMPRESSDXT_H
+#ifndef NV_TT_CUDACOMPRESSORDXT_H
+#define NV_TT_CUDACOMPRESSORDXT_H
 
-#include <nvimage/nvimage.h>
-#include <nvtt/nvtt.h>
-
-#include "nvtt/CompressDXT.h"
+#include "nvtt/nvtt.h"
+#include "../Compressor.h" // CompressorInterface
 
 struct cudaArray;
 
 namespace nv
 {
-	class Image;
-
 	class CudaContext
 	{
 	public:
@@ -51,12 +47,13 @@ namespace nv
 		uint * result;
 	};
 
+#if defined HAVE_CUDA
 
 	struct CudaCompressor : public CompressorInterface
 	{
 		CudaCompressor(CudaContext & ctx);
 
-		virtual void compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions);
+		virtual void compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, const void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions);
 
 		virtual void setup(cudaArray * image, const nvtt::CompressionOptions::Private & compressionOptions) = 0;
 		virtual void compressBlocks(uint first, uint count, uint w, uint h, nvtt::AlphaMode alphaMode, const nvtt::CompressionOptions::Private & compressionOptions, void * output) = 0;
@@ -107,6 +104,8 @@ namespace nv
 		virtual uint blockSize() const { return 8; };
 	};*/
 
+#endif // defined HAVE_CUDA
+
 } // nv namespace
 
 

src/nvtt/nvtt.h

@@ -21,6 +21,7 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 
+#pragma once
 #ifndef NV_TT_H
 #define NV_TT_H