BC6/7 progress. Work in progress.
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@ -24,10 +24,31 @@
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#include "CompressorDX11.h"
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#include "nvtt.h"
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#include "CompressionOptions.h"
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#include "bc6h/zoh.h"
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#include "bc6h/utils.h"
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using namespace nv;
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using namespace nvtt;
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void CompressorBC6::compressBlock(Tile & tile, AlphaMode alphaMode, const CompressionOptions::Private & compressionOptions, void * output)
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{
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NV_UNUSED(alphaMode); // ZOH does not support alpha.
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if (compressionOptions.pixelType == PixelType_UnsignedFloat ||
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compressionOptions.pixelType == PixelType_UnsignedNorm ||
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compressionOptions.pixelType == PixelType_UnsignedInt)
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{
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Utils::FORMAT = UNSIGNED_F16; // @@ Do not use globals.
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}
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else
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{
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Utils::FORMAT = SIGNED_F16;
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}
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ZOH::compress(tile, (char *)output);
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}
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@ -28,15 +28,15 @@
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namespace nv
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{
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struct CompressorBC6 : public FixedBlockCompressor
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struct CompressorBC6 : public TileCompressor
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{
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virtual void compressBlock(ColorBlock & rgba, nvtt::AlphaMode alphaMode, const nvtt::CompressionOptions::Private & compressionOptions, void * output);
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virtual void compressBlock(Tile & tile, nvtt::AlphaMode alphaMode, const nvtt::CompressionOptions::Private & compressionOptions, void * output);
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virtual uint blockSize() const { return 16; }
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};
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struct CompressorBC7 : public FixedBlockCompressor
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struct CompressorBC7 : public TileCompressor
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{
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virtual void compressBlock(ColorBlock & rgba, nvtt::AlphaMode alphaMode, const nvtt::CompressionOptions::Private & compressionOptions, void * output);
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virtual void compressBlock(Tile & tile, nvtt::AlphaMode alphaMode, const nvtt::CompressionOptions::Private & compressionOptions, void * output);
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virtual uint blockSize() const { return 16; }
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};
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@ -49,7 +49,6 @@ void FixedBlockCompressor::compress(nvtt::InputFormat inputFormat, nvtt::AlphaMo
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const uint bs = blockSize();
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const uint bw = (w + 3) / 4;
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const uint bh = (h + 3) / 4;
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const uint size = bs * bw * bh;
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#if defined(HAVE_OPENMP)
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bool singleThreaded = false;
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@ -61,9 +60,9 @@ void FixedBlockCompressor::compress(nvtt::InputFormat inputFormat, nvtt::AlphaMo
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if (bw * bh < 16) singleThreaded = true;
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if (singleThreaded)
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{
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nvDebugCheck(bs <= 16);
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uint8 mem[16];
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{
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nvDebugCheck(bs <= 16);
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uint8 mem[16]; // @@ Output one row at a time!
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for (int y = 0; y < int(h); y += 4) {
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for (uint x = 0; x < w; x += 4) {
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@ -88,7 +87,8 @@ void FixedBlockCompressor::compress(nvtt::InputFormat inputFormat, nvtt::AlphaMo
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#if defined(HAVE_OPENMP)
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else
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{
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uint8 * mem = new uint8[size];
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const uint size = bs * bw * bh;
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uint8 * mem = new uint8[size];
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#pragma omp parallel
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{
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@ -121,3 +121,40 @@ void FixedBlockCompressor::compress(nvtt::InputFormat inputFormat, nvtt::AlphaMo
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#endif
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}
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#include "bc6h/tile.h"
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void TileCompressor::compress(InputFormat inputFormat, AlphaMode alphaMode, uint w, uint h, const void * data, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions)
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{
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const uint bs = blockSize();
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const uint bw = (w + 3) / 4;
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const uint bh = (h + 3) / 4;
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bool singleThreaded = true;
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if (singleThreaded)
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{
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nvDebugCheck(bs <= 16);
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uint8 mem[16]; // @@ Output one row at a time!
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for (uint y = 0; y < h; y += 4) {
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for (uint x = 0; x < w; x += 4) {
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Tile tile;
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if (inputFormat == nvtt::InputFormat_BGRA_8UB) {
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//tile.init((const uint *)data, w, h, x, y);
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}
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else {
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nvDebugCheck(inputFormat == nvtt::InputFormat_RGBA_32F);
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//tile.init((const float *)data, w, h, x, y);
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}
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compressBlock(tile, alphaMode, compressionOptions, mem);
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if (outputOptions.outputHandler != NULL) {
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outputOptions.outputHandler->writeData(mem, bs);
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}
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}
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}
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}
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}
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@ -26,10 +26,11 @@
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#include "Compressor.h"
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struct Tile;
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namespace nv
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{
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struct ColorBlock;
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struct Tile;
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struct FixedBlockCompressor : public CompressorInterface
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{
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@ -75,7 +75,7 @@ public:
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static const int TILE_H = 4;
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static const int TILE_W = 4;
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static const int TILE_TOTAL = TILE_H * TILE_W;
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Vector3 data[TILE_H][TILE_W];
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nv::Vector3 data[TILE_H][TILE_W];
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float importance_map[TILE_H][TILE_W];
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int size_x, size_y; // actual size of tile
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};
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@ -17,7 +17,6 @@ See the License for the specific language governing permissions and limitations
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#include "nvmath/Vector.h"
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using namespace nv; // @@ Move everything to nv namespace instead.
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#define PALETTE_LERP(a, b, i, denom) Utils::lerp(a, b, i, denom)
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@ -45,18 +44,18 @@ enum Format { UNSIGNED_F16, SIGNED_F16 };
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class Utils
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{
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public:
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static Format FORMAT; // this is a global -- we're either handling unsigned or unsigned half values
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static ::Format FORMAT; // this is a global -- we're either handling unsigned or unsigned half values
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// error metrics
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static double norm(const Vector3 &a, const Vector3 &b);
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static double mpsnr_norm(const Vector3 &a, int exposure, const Vector3 &b);
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static double norm(const nv::Vector3 &a, const nv::Vector3 &b);
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static double mpsnr_norm(const nv::Vector3 &a, int exposure, const nv::Vector3 &b);
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// conversion & clamp
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static int ushort_to_format(unsigned short input);
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static unsigned short format_to_ushort(int input);
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// clamp to format
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static void clamp(Vector3 &v);
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static void clamp(nv::Vector3 &v);
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// quantization and unquantization
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static int finish_unquantize(int q, int prec);
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// lerping
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static int lerp(int a, int b, int i, int denom);
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static Vector3 lerp(const Vector3 & a, const Vector3 & b, int i, int denom);
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static nv::Vector3 lerp(const nv::Vector3 & a, const nv::Vector3 & b, int i, int denom);
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};
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#endif // _UTILS_H
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@ -29,8 +29,8 @@ See the License for the specific language governing permissions and limitations
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struct FltEndpts
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{
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Vector3 A;
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Vector3 B;
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nv::Vector3 A;
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nv::Vector3 B;
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};
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struct IntEndpts
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@ -19,12 +19,12 @@ TARGET_LINK_LIBRARIES(nvzoom nvcore nvmath nvimage)
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SET(TOOLS nvcompress nvdecompress nvddsinfo nvassemble nvzoom)
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IF(GLEW_FOUND AND GLUT_FOUND)
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INCLUDE_DIRECTORIES(${GLEW_INCLUDE_PATH} ${GLUT_INCLUDE_DIR})
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ADD_EXECUTABLE(nvddsview ddsview.cpp cmdline.h)
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TARGET_LINK_LIBRARIES(nvddsview nvcore nvmath nvimage ${GLEW_LIBRARY} ${GLUT_LIBRARY})
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SET(TOOLS ${TOOLS} nvddsview)
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ENDIF(GLEW_FOUND AND GLUT_FOUND)
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#IF(GLEW_FOUND AND GLUT_FOUND)
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# INCLUDE_DIRECTORIES(${GLEW_INCLUDE_PATH} ${GLUT_INCLUDE_DIR})
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# ADD_EXECUTABLE(nvddsview ddsview.cpp cmdline.h)
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# TARGET_LINK_LIBRARIES(nvddsview nvcore nvmath nvimage ${GLEW_LIBRARY} ${GLUT_LIBRARY})
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# SET(TOOLS ${TOOLS} nvddsview)
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#ENDIF(GLEW_FOUND AND GLUT_FOUND)
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ADD_EXECUTABLE(nv-gnome-thumbnailer thumbnailer.cpp cmdline.h)
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