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812 lines
21 KiB
C++
812 lines
21 KiB
C++
// Copyright NVIDIA Corporation 2008 -- Ignacio Castano <icastano@nvidia.com>
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#include <nvtt/nvtt.h>
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#include <nvcore/Memory.h>
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#include <nvcore/Ptr.h>
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#include <nvimage/DirectDrawSurface.h>
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#include <nvimage/ColorBlock.h>
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#include <nvimage/BlockDXT.h>
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#include <nvimage/Image.h>
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#include <nvimage/FloatImage.h>
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#include <nvimage/Filter.h>
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#include <nvimage/Quantize.h>
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#include <nvimage/NormalMap.h>
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#include "Compressor.h"
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#include "InputOptions.h"
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#include "CompressionOptions.h"
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#include "OutputOptions.h"
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#include "CompressDXT.h"
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#include "FastCompressDXT.h"
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#include "CompressRGB.h"
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#include "cuda/CudaUtils.h"
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#include "cuda/CudaCompressDXT.h"
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using namespace nv;
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using namespace nvtt;
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namespace
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{
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static int blockSize(Format format)
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{
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if (format == Format_DXT1 || format == Format_DXT1a) {
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return 8;
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}
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else if (format == Format_DXT3) {
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return 16;
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}
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else if (format == Format_DXT5 || format == Format_DXT5n) {
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return 16;
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}
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else if (format == Format_BC4) {
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return 8;
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}
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else if (format == Format_BC5) {
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return 16;
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}
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return 0;
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}
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inline uint computePitch(uint w, uint bitsize)
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{
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uint p = w * ((bitsize + 7) / 8);
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// Align to 32 bits.
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return ((p + 3) / 4) * 4;
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}
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static int computeImageSize(uint w, uint h, uint d, uint bitCount, Format format)
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{
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if (format == Format_RGBA) {
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return d * h * computePitch(w, bitCount);
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}
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else {
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// @@ Handle 3D textures. DXT and VTC have different behaviors.
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return ((w + 3) / 4) * ((h + 3) / 4) * blockSize(format);
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}
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}
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} // namespace
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namespace nvtt
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{
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// Mipmap could be:
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// - a pointer to an input image.
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// - a fixed point image.
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// - a floating point image.
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struct Mipmap
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{
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Mipmap() : m_inputImage(NULL) {}
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~Mipmap() {}
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// Reference input image.
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void setFromInput(const InputOptions::Private & inputOptions, uint idx)
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{
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m_inputImage = inputOptions.image(idx);
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m_fixedImage = NULL;
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m_floatImage = NULL;
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}
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// Assign and take ownership of given image.
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void setImage(FloatImage * image)
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{
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m_inputImage = NULL;
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m_fixedImage = NULL;
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m_floatImage = image;
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}
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// Convert linear float image to fixed image ready for compression.
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void toFixedImage(const InputOptions::Private & inputOptions)
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{
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if (this->asFixedImage() == NULL)
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{
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nvDebugCheck(m_floatImage != NULL);
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if (inputOptions.isNormalMap || inputOptions.outputGamma == 1.0f)
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{
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m_fixedImage = m_floatImage->createImage();
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}
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else
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{
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m_fixedImage = m_floatImage->createImageGammaCorrect(inputOptions.outputGamma);
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}
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}
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}
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// Convert input image to linear float image.
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void toFloatImage(const InputOptions::Private & inputOptions)
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{
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if (m_floatImage == NULL)
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{
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nvDebugCheck(this->asFixedImage() != NULL);
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m_floatImage = new FloatImage(this->asFixedImage());
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if (inputOptions.isNormalMap)
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{
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// Expand normals to [-1, 1] range.
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// floatImage->expandNormals(0);
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}
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else if (inputOptions.inputGamma != 1.0f)
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{
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// Convert to linear space.
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m_floatImage->toLinear(0, 3, inputOptions.inputGamma);
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}
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}
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}
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const FloatImage * asFloatImage() const
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{
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return m_floatImage.ptr();
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}
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FloatImage * asFloatImage()
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{
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return m_floatImage.ptr();
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}
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const Image * asFixedImage() const
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{
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if (m_inputImage != NULL)
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{
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return m_inputImage;
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}
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return m_fixedImage.ptr();
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}
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Image * asMutableFixedImage()
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{
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if (m_inputImage != NULL)
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{
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// Do not modify input image, create a copy.
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m_fixedImage = new Image(*m_inputImage);
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m_inputImage = NULL;
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}
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return m_fixedImage.ptr();
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}
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private:
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const Image * m_inputImage;
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AutoPtr<Image> m_fixedImage;
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AutoPtr<FloatImage> m_floatImage;
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};
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}
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Compressor::Compressor() : m(*new Compressor::Private())
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{
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// CUDA initialization.
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m.cudaSupported = cuda::isHardwarePresent();
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m.cudaEnabled = m.cudaSupported;
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if (m.cudaEnabled)
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{
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m.cuda = new CudaCompressor();
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if (!m.cuda->isValid())
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{
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m.cudaEnabled = false;
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m.cuda = NULL;
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}
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}
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}
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Compressor::~Compressor()
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{
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delete &m;
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}
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/// Enable CUDA acceleration.
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void Compressor::enableCudaAcceleration(bool enable)
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{
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if (m.cudaSupported)
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{
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m.cudaEnabled = enable;
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}
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if (m.cudaEnabled && m.cuda == NULL)
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{
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m.cuda = new CudaCompressor();
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if (!m.cuda->isValid())
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{
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m.cudaEnabled = false;
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m.cuda = NULL;
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}
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}
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}
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/// Check if CUDA acceleration is enabled.
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bool Compressor::isCudaAccelerationEnabled() const
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{
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return m.cudaEnabled;
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}
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/// Compress the input texture with the given compression options.
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bool Compressor::process(const InputOptions & inputOptions, const CompressionOptions & compressionOptions, const OutputOptions & outputOptions) const
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{
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return m.compress(inputOptions.m, compressionOptions.m, outputOptions.m);
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}
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/// Estimate the size of compressing the input with the given options.
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int Compressor::estimateSize(const InputOptions & inputOptions, const CompressionOptions & compressionOptions) const
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{
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return m.estimateSize(inputOptions.m, compressionOptions.m);
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}
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bool Compressor::Private::compress(const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions) const
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{
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// Make sure enums match.
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nvStaticCheck(FloatImage::WrapMode_Clamp == (FloatImage::WrapMode)WrapMode_Clamp);
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nvStaticCheck(FloatImage::WrapMode_Mirror == (FloatImage::WrapMode)WrapMode_Mirror);
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nvStaticCheck(FloatImage::WrapMode_Repeat == (FloatImage::WrapMode)WrapMode_Repeat);
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// Get output handler.
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if (!outputOptions.openFile())
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{
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if (outputOptions.errorHandler) outputOptions.errorHandler->error(Error_FileOpen);
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return false;
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}
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inputOptions.computeTargetExtents();
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// Output DDS header.
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if (!outputHeader(inputOptions, compressionOptions, outputOptions))
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{
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return false;
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}
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for (uint f = 0; f < inputOptions.faceCount; f++)
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{
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if (!compressMipmaps(f, inputOptions, compressionOptions, outputOptions))
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{
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return false;
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}
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}
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outputOptions.closeFile();
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return true;
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}
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// Output DDS header.
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bool Compressor::Private::outputHeader(const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions) const
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{
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// Output DDS header.
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if (outputOptions.outputHandler == NULL || !outputOptions.outputHeader)
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{
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return true;
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}
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DDSHeader header;
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header.setWidth(inputOptions.targetWidth);
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header.setHeight(inputOptions.targetHeight);
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int mipmapCount = inputOptions.realMipmapCount();
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nvDebugCheck(mipmapCount > 0);
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header.setMipmapCount(mipmapCount);
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if (inputOptions.textureType == TextureType_2D) {
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header.setTexture2D();
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}
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else if (inputOptions.textureType == TextureType_Cube) {
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header.setTextureCube();
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}
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/*else if (inputOptions.textureType == TextureType_3D) {
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header.setTexture3D();
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header.setDepth(inputOptions.targetDepth);
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}*/
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if (compressionOptions.format == Format_RGBA)
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{
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header.setPitch(computePitch(inputOptions.targetWidth, compressionOptions.bitcount));
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header.setPixelFormat(compressionOptions.bitcount, compressionOptions.rmask, compressionOptions.gmask, compressionOptions.bmask, compressionOptions.amask);
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}
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else
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{
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header.setLinearSize(computeImageSize(inputOptions.targetWidth, inputOptions.targetHeight, inputOptions.targetDepth, compressionOptions.bitcount, compressionOptions.format));
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if (compressionOptions.format == Format_DXT1 || compressionOptions.format == Format_DXT1a) {
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header.setFourCC('D', 'X', 'T', '1');
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if (inputOptions.isNormalMap) header.setNormalFlag(true);
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}
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else if (compressionOptions.format == Format_DXT3) {
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header.setFourCC('D', 'X', 'T', '3');
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}
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else if (compressionOptions.format == Format_DXT5) {
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header.setFourCC('D', 'X', 'T', '5');
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}
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else if (compressionOptions.format == Format_DXT5n) {
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header.setFourCC('D', 'X', 'T', '5');
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if (inputOptions.isNormalMap) header.setNormalFlag(true);
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}
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else if (compressionOptions.format == Format_BC4) {
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header.setFourCC('A', 'T', 'I', '1');
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}
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else if (compressionOptions.format == Format_BC5) {
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header.setFourCC('A', 'T', 'I', '2');
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if (inputOptions.isNormalMap) header.setNormalFlag(true);
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}
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}
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// Swap bytes if necessary.
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header.swapBytes();
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uint headerSize = 128;
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if (header.hasDX10Header())
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{
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nvStaticCheck(sizeof(DDSHeader) == 128 + 20);
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headerSize = 128 + 20;
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}
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bool writeSucceed = outputOptions.outputHandler->writeData(&header, headerSize);
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if (!writeSucceed && outputOptions.errorHandler != NULL)
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{
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outputOptions.errorHandler->error(Error_FileWrite);
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}
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return writeSucceed;
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}
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bool Compressor::Private::compressMipmaps(uint f, const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions) const
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{
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uint w = inputOptions.targetWidth;
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uint h = inputOptions.targetHeight;
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uint d = inputOptions.targetDepth;
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Mipmap mipmap;
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const uint mipmapCount = inputOptions.realMipmapCount();
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nvDebugCheck(mipmapCount > 0);
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for (uint m = 0; m < mipmapCount; m++)
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{
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if (outputOptions.outputHandler)
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{
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int size = computeImageSize(w, h, d, compressionOptions.bitcount, compressionOptions.format);
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outputOptions.outputHandler->beginImage(size, w, h, d, f, m);
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}
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// @@ Where to do the color transform?
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// - Color transform may not be linear, so we cannot do before computing mipmaps.
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// - Should be done in linear space, that is, after gamma correction.
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if (!initMipmap(mipmap, inputOptions, w, h, d, f, m))
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{
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if (outputOptions.errorHandler != NULL)
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{
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outputOptions.errorHandler->error(Error_InvalidInput);
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return false;
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}
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}
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quantizeMipmap(mipmap, compressionOptions);
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compressMipmap(mipmap, compressionOptions, outputOptions);
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// Compute extents of next mipmap:
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w = max(1U, w / 2);
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h = max(1U, h / 2);
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d = max(1U, d / 2);
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}
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return true;
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}
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bool Compressor::Private::initMipmap(Mipmap & mipmap, const InputOptions::Private & inputOptions, uint w, uint h, uint d, uint f, uint m) const
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{
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// Find image from input.
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int inputIdx = findExactMipmap(inputOptions, w, h, d, f);
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if ((inputIdx == -1 || inputOptions.convertToNormalMap) && m != 0)
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{
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// Generate from last, when mipmap not found, or normal map conversion enabled.
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downsampleMipmap(mipmap, inputOptions);
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}
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else
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{
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if (inputIdx != -1)
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{
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// If input mipmap found, then get from input.
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mipmap.setFromInput(inputOptions, inputIdx);
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}
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else
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{
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// If not found, resize closest mipmap.
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inputIdx = findClosestMipmap(inputOptions, w, h, d, f);
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if (inputIdx == -1)
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{
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return false;
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}
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mipmap.setFromInput(inputOptions, inputIdx);
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scaleMipmap(mipmap, inputOptions, w, h, d);
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}
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processInputImage(mipmap, inputOptions);
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}
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// Convert linear float image to fixed image ready for compression.
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mipmap.toFixedImage(inputOptions);
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return true;
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}
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int Compressor::Private::findExactMipmap(const InputOptions::Private & inputOptions, uint w, uint h, uint d, uint f) const
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{
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for (int m = 0; m < int(inputOptions.mipmapCount); m++)
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{
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int idx = f * inputOptions.mipmapCount + m;
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const InputOptions::Private::InputImage & inputImage = inputOptions.images[idx];
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if (inputImage.width == int(w) && inputImage.height == int(h) && inputImage.depth == int(d))
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{
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if (inputImage.data != NULL)
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{
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return idx;
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}
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return -1;
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}
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else if (inputImage.width < int(w) || inputImage.height < int(h) || inputImage.depth < int(d))
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{
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return -1;
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}
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}
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return -1;
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}
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int Compressor::Private::findClosestMipmap(const InputOptions::Private & inputOptions, uint w, uint h, uint d, uint f) const
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{
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int bestIdx = -1;
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for (int m = 0; m < int(inputOptions.mipmapCount); m++)
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{
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int idx = f * inputOptions.mipmapCount + m;
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const InputOptions::Private::InputImage & inputImage = inputOptions.images[idx];
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if (inputImage.data != NULL)
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{
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int difference = (inputImage.width - w) + (inputImage.height - h) + (inputImage.depth - d);
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if (difference < 0)
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{
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if (bestIdx == -1)
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{
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bestIdx = idx;
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}
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return bestIdx;
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}
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bestIdx = idx;
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}
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}
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return bestIdx;
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}
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// Create mipmap from the given image.
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void Compressor::Private::downsampleMipmap(Mipmap & mipmap, const InputOptions::Private & inputOptions) const
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{
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// Make sure that floating point linear representation is available.
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mipmap.toFloatImage(inputOptions);
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const FloatImage * floatImage = mipmap.asFloatImage();
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if (inputOptions.mipmapFilter == MipmapFilter_Box)
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{
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// Use fast downsample.
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mipmap.setImage(floatImage->fastDownSample());
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}
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else if (inputOptions.mipmapFilter == MipmapFilter_Triangle)
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{
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TriangleFilter filter;
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mipmap.setImage(floatImage->downSample(filter, (FloatImage::WrapMode)inputOptions.wrapMode));
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}
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else /*if (inputOptions.mipmapFilter == MipmapFilter_Kaiser)*/
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{
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nvDebugCheck(inputOptions.mipmapFilter == MipmapFilter_Kaiser);
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KaiserFilter filter(inputOptions.kaiserWidth);
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filter.setParameters(inputOptions.kaiserAlpha, inputOptions.kaiserStretch);
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mipmap.setImage(floatImage->downSample(filter, (FloatImage::WrapMode)inputOptions.wrapMode));
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}
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// Normalize mipmap.
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|
if ((inputOptions.isNormalMap || inputOptions.convertToNormalMap) && inputOptions.normalizeMipmaps)
|
|
{
|
|
normalizeNormalMap(mipmap.asFloatImage());
|
|
}
|
|
}
|
|
|
|
|
|
void Compressor::Private::scaleMipmap(Mipmap & mipmap, const InputOptions::Private & inputOptions, uint w, uint h, uint d) const
|
|
{
|
|
mipmap.toFloatImage(inputOptions);
|
|
|
|
// @@ Add more filters.
|
|
// @@ Select different filters for downscaling and reconstruction.
|
|
|
|
// Resize image.
|
|
BoxFilter boxFilter;
|
|
mipmap.setImage(mipmap.asFloatImage()->downSample(boxFilter, w, h, (FloatImage::WrapMode)inputOptions.wrapMode));
|
|
}
|
|
|
|
|
|
// Process an input image: Convert to normal map, normalize, or convert to linear space.
|
|
void Compressor::Private::processInputImage(Mipmap & mipmap, const InputOptions::Private & inputOptions) const
|
|
{
|
|
if (inputOptions.convertToNormalMap)
|
|
{
|
|
mipmap.toFixedImage(inputOptions);
|
|
|
|
Vector4 heightScale = inputOptions.heightFactors;
|
|
mipmap.setImage(createNormalMap(mipmap.asFixedImage(), (FloatImage::WrapMode)inputOptions.wrapMode, heightScale, inputOptions.bumpFrequencyScale));
|
|
}
|
|
else if (inputOptions.isNormalMap)
|
|
{
|
|
if (inputOptions.normalizeMipmaps)
|
|
{
|
|
// If floating point image available, normalize in place.
|
|
if (mipmap.asFloatImage() == NULL)
|
|
{
|
|
FloatImage * floatImage = new FloatImage(mipmap.asFixedImage());
|
|
normalizeNormalMap(floatImage);
|
|
mipmap.setImage(floatImage);
|
|
}
|
|
else
|
|
{
|
|
normalizeNormalMap(mipmap.asFloatImage());
|
|
mipmap.setImage(mipmap.asFloatImage());
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (inputOptions.inputGamma != inputOptions.outputGamma)
|
|
{
|
|
mipmap.toFloatImage(inputOptions);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// Quantize the given mipmap according to the compression options.
|
|
void Compressor::Private::quantizeMipmap(Mipmap & mipmap, const CompressionOptions::Private & compressionOptions) const
|
|
{
|
|
nvDebugCheck(mipmap.asFixedImage() != NULL);
|
|
|
|
if (compressionOptions.enableColorDithering)
|
|
{
|
|
if (compressionOptions.format >= Format_DXT1 && compressionOptions.format <= Format_DXT5)
|
|
{
|
|
Quantize::FloydSteinberg_RGB16(mipmap.asMutableFixedImage());
|
|
}
|
|
}
|
|
if (compressionOptions.binaryAlpha)
|
|
{
|
|
if (compressionOptions.enableAlphaDithering)
|
|
{
|
|
Quantize::FloydSteinberg_BinaryAlpha(mipmap.asMutableFixedImage(), compressionOptions.alphaThreshold);
|
|
}
|
|
else
|
|
{
|
|
Quantize::BinaryAlpha(mipmap.asMutableFixedImage(), compressionOptions.alphaThreshold);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (compressionOptions.enableAlphaDithering)
|
|
{
|
|
if (compressionOptions.format == Format_DXT3)
|
|
{
|
|
Quantize::Alpha4(mipmap.asMutableFixedImage());
|
|
}
|
|
else if (compressionOptions.format == Format_DXT1a)
|
|
{
|
|
Quantize::BinaryAlpha(mipmap.asMutableFixedImage(), compressionOptions.alphaThreshold);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// Compress the given mipmap.
|
|
bool Compressor::Private::compressMipmap(const Mipmap & mipmap, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions) const
|
|
{
|
|
const Image * image = mipmap.asFixedImage();
|
|
|
|
nvDebugCheck(image != NULL);
|
|
|
|
if (compressionOptions.format == Format_RGBA || compressionOptions.format == Format_RGB)
|
|
{
|
|
compressRGB(image, outputOptions, compressionOptions);
|
|
}
|
|
else if (compressionOptions.format == Format_DXT1)
|
|
{
|
|
#if defined(HAVE_S3QUANT)
|
|
if (compressionOptions.externalCompressor == "s3")
|
|
{
|
|
s3CompressDXT1(image, outputOptions);
|
|
}
|
|
else
|
|
#endif
|
|
|
|
#if defined(HAVE_ATITC)
|
|
if (compressionOptions.externalCompressor == "ati")
|
|
{
|
|
atiCompressDXT1(image, outputOptions);
|
|
}
|
|
else
|
|
#endif
|
|
if (compressionOptions.quality == Quality_Fastest)
|
|
{
|
|
fastCompressDXT1(image, outputOptions);
|
|
}
|
|
else
|
|
{
|
|
if (cudaEnabled)
|
|
{
|
|
nvDebugCheck(cudaSupported);
|
|
cuda->compressDXT1(image, outputOptions, compressionOptions);
|
|
}
|
|
else
|
|
{
|
|
compressDXT1(image, outputOptions, compressionOptions);
|
|
}
|
|
}
|
|
}
|
|
else if (compressionOptions.format == Format_DXT1a)
|
|
{
|
|
if (compressionOptions.quality == Quality_Fastest)
|
|
{
|
|
fastCompressDXT1a(image, outputOptions);
|
|
}
|
|
else
|
|
{
|
|
if (cudaEnabled)
|
|
{
|
|
nvDebugCheck(cudaSupported);
|
|
/*cuda*/compressDXT1a(image, outputOptions, compressionOptions);
|
|
}
|
|
else
|
|
{
|
|
compressDXT1a(image, outputOptions, compressionOptions);
|
|
}
|
|
}
|
|
}
|
|
else if (compressionOptions.format == Format_DXT3)
|
|
{
|
|
if (compressionOptions.quality == Quality_Fastest)
|
|
{
|
|
fastCompressDXT3(image, outputOptions);
|
|
}
|
|
else
|
|
{
|
|
if (cudaEnabled)
|
|
{
|
|
nvDebugCheck(cudaSupported);
|
|
cuda->compressDXT3(image, outputOptions, compressionOptions);
|
|
}
|
|
else
|
|
{
|
|
compressDXT3(image, outputOptions, compressionOptions);
|
|
}
|
|
}
|
|
}
|
|
else if (compressionOptions.format == Format_DXT5)
|
|
{
|
|
if (compressionOptions.quality == Quality_Fastest)
|
|
{
|
|
fastCompressDXT5(image, outputOptions);
|
|
}
|
|
else
|
|
{
|
|
if (cudaEnabled)
|
|
{
|
|
nvDebugCheck(cudaSupported);
|
|
cuda->compressDXT5(image, outputOptions, compressionOptions);
|
|
}
|
|
else
|
|
{
|
|
compressDXT5(image, outputOptions, compressionOptions);
|
|
}
|
|
}
|
|
}
|
|
else if (compressionOptions.format == Format_DXT5n)
|
|
{
|
|
if (compressionOptions.quality == Quality_Fastest)
|
|
{
|
|
fastCompressDXT5n(image, outputOptions);
|
|
}
|
|
else
|
|
{
|
|
compressDXT5n(image, outputOptions, compressionOptions);
|
|
}
|
|
}
|
|
else if (compressionOptions.format == Format_BC4)
|
|
{
|
|
compressBC4(image, outputOptions, compressionOptions);
|
|
}
|
|
else if (compressionOptions.format == Format_BC5)
|
|
{
|
|
compressBC5(image, outputOptions, compressionOptions);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
int Compressor::Private::estimateSize(const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions) const
|
|
{
|
|
const Format format = compressionOptions.format;
|
|
const uint bitCount = compressionOptions.bitcount;
|
|
|
|
inputOptions.computeTargetExtents();
|
|
|
|
uint mipmapCount = inputOptions.realMipmapCount();
|
|
|
|
int size = 0;
|
|
|
|
for (uint f = 0; f < inputOptions.faceCount; f++)
|
|
{
|
|
uint w = inputOptions.targetWidth;
|
|
uint h = inputOptions.targetHeight;
|
|
uint d = inputOptions.targetDepth;
|
|
|
|
for (uint m = 0; m < mipmapCount; m++)
|
|
{
|
|
size += computeImageSize(w, h, d, bitCount, format);
|
|
|
|
// Compute extents of next mipmap:
|
|
w = max(1U, w / 2);
|
|
h = max(1U, h / 2);
|
|
d = max(1U, d / 2);
|
|
}
|
|
}
|
|
|
|
return size;
|
|
}
|