Start using refactored fast compressor.

Fix error with DX10 headers.

project/vc8/nvtt/nvtt.vcproj

@@ -851,6 +851,10 @@
 				RelativePath="..\..\..\src\nvimage\nvtt\OutputOptions.cpp"
 				>
 			</File>
+			<File
+				RelativePath="..\..\..\src\nvimage\nvtt\QuickCompressDXT.cpp"
+				>
+			</File>
 		</Filter>
 		<Filter
 			Name="Header Files"
@@ -893,6 +897,10 @@
 				RelativePath="..\..\..\src\nvimage\nvtt\nvtt.h"
 				>
 			</File>
+			<File
+				RelativePath="..\..\..\src\nvimage\nvtt\QuickCompressDXT.h"
+				>
+			</File>
 			<File
 				RelativePath=".\resource.h"
 				>

src/nvimage/DirectDrawSurface.cpp

@@ -967,7 +967,7 @@ uint DirectDrawSurface::faceSize() const
 
 uint DirectDrawSurface::offset(const uint face, const uint mipmap)
 {
-	uint size = sizeof(DDSHeader);
+	uint size = 128; //sizeof(DDSHeader);
 	
 	if (face != 0)
 	{

src/nvimage/nvtt/CompressDXT.cpp

@@ -67,9 +67,7 @@ void nv::fastCompressDXT1(const Image * image, const OutputOptions & outputOptio
 		for (uint x = 0; x < w; x += 4) {
 			rgba.init(image, x, y);
 			
-			//QuickCompress::compressDXT1(rgba, &block);
+			QuickCompress::compressDXT1(rgba, &block);
-			
-			compressBlock_BoundsRange(rgba, &block);
 			
 			optimizeEndPoints(rgba, &block);
 			

src/nvimage/nvtt/QuickCompressDXT.cpp

@@ -47,7 +47,7 @@ inline static void extractColorBlockRGB(const ColorBlock & rgba, Vector3 block[1
 inline static void findMinMaxColorsBox(Vector3 block[16], Vector3 * __restrict maxColor, Vector3 * __restrict minColor)
 {
     *maxColor = Vector3(0, 0, 0);
-	*minColor = Vector3(1, 1, 1);
+	*minColor = Vector3(255, 255, 255);
     
 	for (int i = 0; i < 16; i++)
 	{
@@ -92,9 +92,9 @@ inline static void insetBBox(Vector3 * __restrict maxColor, Vector3 * __restrict
 
 inline static uint16 roundAndExpand(Vector3 * v)
 {
-	uint r = clamp(v->x() * (31.0f / 255.0f), 0.0f, 31.0f);
+	uint r = clamp(v->x() * (31.0f / 255.0f), 0.0f, 31.0f) + 0.5f;
-	uint g = clamp(v->y() * (63.0f / 255.0f), 0.0f, 63.0f);
+	uint g = clamp(v->y() * (63.0f / 255.0f), 0.0f, 63.0f) + 0.5f;
-	uint b = clamp(v->z() * (31.0f / 255.0f), 0.0f, 31.0f);
+	uint b = clamp(v->z() * (31.0f / 255.0f), 0.0f, 31.0f) + 0.5f;
 	
 	uint16 w = (r << 11) | (g << 5) | b;
 
@@ -154,18 +154,18 @@ void QuickCompress::compressDXT1(const ColorBlock & rgba, BlockDXT1 * dxtBlock)
 	Vector3 maxColor, minColor;
 	findMinMaxColorsBox(block, &maxColor, &minColor);
 	
-	//selectDiagonal(block, &maxColor, &minColor);
+	selectDiagonal(block, &maxColor, &minColor);
 	
-	//insetBBox(&minColor, &maxColor);
+	insetBBox(&maxColor, &minColor);
 	
 	uint16 color0 = roundAndExpand(&maxColor);
 	uint16 color1 = roundAndExpand(&minColor);
 
-	/*if (color0 < color1)
+	if (color0 < color1)
 	{
 		swap(maxColor, minColor);
 		swap(color0, color1);
-	}*/
+	}
 
 	// @@ Optimize endpoints.
 	

src/nvimage/nvtt/tools/imgdiff.cpp

@@ -74,6 +74,7 @@ struct Error
 
 	void addSample(float e)
 	{
+		if (fabsf(e) >= 255) nvDebugBreak();
 		samples++;
 		mabse += fabsf(e);
 		maxabse = nv::max(maxabse, fabsf(e));