Refactor internals.
Move compression functions to Compressor.cpp. Implementing rescaling support in a cleaner way.
This commit is contained in:
castano
parent
9ebd736e98
commit
ddc79f69f4
@ -0,0 +1,754 @@
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// 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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Compressor::Compressor() : m(*new Compressor::Private())
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{
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m.cudaSupported = cuda::isHardwarePresent();
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m.cudaEnabled = true;
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// @@ Do CUDA initialization here.
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}
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Compressor::~Compressor()
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{
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// @@ Free CUDA resources here.
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}
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/// Enable CUDA acceleration.
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void Compressor::enableCudaAceleration(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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}
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/// Check if CUDA acceleration is enabled.
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bool Compressor::isCudaAcelerationEnabled() const
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{
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return m.cudaEnabled;
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}
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#if 0
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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, outputOptions.m, compressionOptions.m);
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}
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#endif // 0
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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, outputOptions, compressionOptions))
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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, outputOptions, compressionOptions))
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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 OutputOptions::Private & outputOptions, const CompressionOptions::Private & compressionOptions) 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(4 * inputOptions.targetWidth);
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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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// @@ compressMipmaps...
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#if 0
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// Convert input image to linear float image.
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static FloatImage * toFloatImage(const Image * image, const InputOptions::Private & inputOptions)
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{
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nvDebugCheck(image != NULL);
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FloatImage * floatImage = new FloatImage(image);
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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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floatImage->toLinear(0, 3, inputOptions.inputGamma);
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}
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return floatImage;
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}
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// Convert linear float image to output image.
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static Image * toFixedImage(const FloatImage * floatImage, const InputOptions::Private & inputOptions)
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{
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nvDebugCheck(floatImage != NULL);
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if (inputOptions.isNormalMap || inputOptions.outputGamma == 1.0f)
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{
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return floatImage->createImage();
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}
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else
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{
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return floatImage->createImageGammaCorrect(inputOptions.outputGamma);
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}
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}
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// Create mipmap from the given image.
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static FloatImage * createMipmap(const FloatImage * floatImage, const InputOptions::Private & inputOptions)
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{
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FloatImage * result = NULL;
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if (inputOptions.mipmapFilter == MipmapFilter_Box)
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{
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// Use fast downsample.
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result = 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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result = 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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result = 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)
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{
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normalizeNormalMap(result);
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}
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return result;
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}
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// Quantize the input image to the precision of the output format.
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static void quantize(Image * img, const CompressionOptions::Private & compressionOptions)
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{
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if (compressionOptions.enableColorDithering)
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{
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if (compressionOptions.format >= Format_DXT1 && compressionOptions.format <= Format_DXT5)
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{
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Quantize::FloydSteinberg_RGB16(img);
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}
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}
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if (compressionOptions.binaryAlpha)
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{
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if (compressionOptions.enableAlphaDithering)
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{
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Quantize::FloydSteinberg_BinaryAlpha(img, compressionOptions.alphaThreshold);
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}
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else
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{
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Quantize::BinaryAlpha(img, compressionOptions.alphaThreshold);
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}
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}
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else
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{
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if (compressionOptions.enableAlphaDithering)
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{
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if (compressionOptions.format == Format_DXT3)
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{
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Quantize::Alpha4(img);
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}
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else if (compressionOptions.format == Format_DXT1a)
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{
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Quantize::BinaryAlpha(img, compressionOptions.alphaThreshold);
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}
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}
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}
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}
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// Process the input, convert to normal map, normalize, or convert to linear space.
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static FloatImage * processInput(const InputOptions::Private & inputOptions, int idx)
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{
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const InputOptions::Private::Image & mipmap = inputOptions.images[idx];
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if (inputOptions.convertToNormalMap)
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{
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// Scale height factor by 1 / 2 ^ m // @@ Compute scale factor exactly...
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Vector4 heightScale = inputOptions.heightFactors / float(1 << idx);
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return createNormalMap(mipmap.data.ptr(), (FloatImage::WrapMode)inputOptions.wrapMode, heightScale, inputOptions.bumpFrequencyScale);
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}
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else if (inputOptions.isNormalMap)
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{
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if (inputOptions.normalizeMipmaps)
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{
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FloatImage * img = new FloatImage(mipmap.data.ptr());
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img->normalize(0);
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return img;
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}
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}
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else
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{
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if (inputOptions.inputGamma != inputOptions.outputGamma)
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{
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FloatImage * img = new FloatImage(mipmap.data.ptr());
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img->toLinear(0, 3, inputOptions.inputGamma);
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return img;
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}
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}
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return NULL;
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}
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struct ImagePair
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{
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ImagePair() : m_floatImage(NULL), m_fixedImage(NULL), m_deleteFixedImage(false) {}
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~ImagePair()
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{
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if (m_deleteFixedImage) {
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delete m_fixedImage;
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}
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}
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void setFloatImage(FloatImage * image)
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{
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m_floatImage = image;
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if (m_deleteFixedImage) delete m_fixedImage;
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m_fixedImage = NULL;
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}
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void setFixedImage(Image * image, bool deleteImage)
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{
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m_floatImage = NULL;
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if (m_deleteFixedImage) delete m_fixedImage;
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m_fixedImage = image;
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m_deleteFixedImage = deleteImage;
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}
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FloatImage * floatImage() const { return m_floatImage.ptr(); }
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Image * fixedImage() const { return m_fixedImage; }
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void toFixed(const InputOptions::Private & inputOptions)
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{
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if (m_floatImage != NULL)
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{
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// Convert to fixed.
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m_fixedImage = toFixedImage(m_floatImage.ptr(), inputOptions);
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}
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}
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private:
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AutoPtr<FloatImage> m_floatImage;
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Image * m_fixedImage;
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bool m_deleteFixedImage;
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};
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// Find the first mipmap provided that is greater or equal to the target image size.
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static int findMipmap(const InputOptions::Private & inputOptions, uint f, int firstMipmap, uint w, uint h, uint d)
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{
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nvDebugCheck(firstMipmap >= 0);
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int bestIdx = -1;
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for (int m = firstMipmap; 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::Image & mipmap = inputOptions.images[idx];
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if (mipmap.width >= int(w) && mipmap.height >= int(h) && mipmap.depth >= int(d))
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{
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if (mipmap.data != NULL)
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{
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bestIdx = idx;
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}
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}
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else
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{
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// Do not look further down.
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break;
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}
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}
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return bestIdx;
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}
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static int findImage(const InputOptions::Private & inputOptions, uint f, uint w, uint h, uint d, int inputImageIdx, ImagePair * pair)
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{
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nvDebugCheck(w > 0 && h > 0);
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nvDebugCheck(inputImageIdx >= 0 && inputImageIdx < int(inputOptions.mipmapCount));
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nvDebugCheck(pair != NULL);
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int bestIdx = findMipmap(inputOptions, f, inputImageIdx, w, h, d);
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const InputOptions::Private::Image & mipmap = inputOptions.images[bestIdx];
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if (mipmap.width == w && mipmap.height == h && mipmap.depth == d)
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{
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// Generate from input image.
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AutoPtr<FloatImage> processedImage( processInput(inputOptions, bestIdx) );
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if (processedImage != NULL)
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{
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pair->setFloatImage(processedImage.release());
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}
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else
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{
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pair->setFixedImage(mipmap.data.ptr(), false);
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}
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return bestIdx;
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}
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else
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{
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if (pair->floatImage() == NULL && pair->fixedImage() == NULL)
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{
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// Generate from input image and resize.
|
||||
AutoPtr<FloatImage> processedImage( processInput(inputOptions, bestIdx) );
|
||||
|
||||
if (processedImage == NULL)
|
||||
{
|
||||
processedImage = new FloatImage(mipmap.data.ptr());
|
||||
}
|
||||
|
||||
// Resize image. @@ Add more filters. @@ Distinguish between downscaling and reconstruction filters.
|
||||
BoxFilter boxFilter;
|
||||
pair->setFloatImage(processedImage->downSample(boxFilter, w, h, (FloatImage::WrapMode)inputOptions.wrapMode));
|
||||
}
|
||||
else
|
||||
{
|
||||
// Generate from previous mipmap.
|
||||
if (pair->floatImage() == NULL)
|
||||
{
|
||||
nvDebugCheck(pair->fixedImage() != NULL);
|
||||
pair->setFloatImage(toFloatImage(pair->fixedImage(), inputOptions));
|
||||
}
|
||||
|
||||
// Create mipmap.
|
||||
pair->setFloatImage(createMipmap(pair->floatImage(), inputOptions));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return bestIdx; // @@ ???
|
||||
}
|
||||
|
||||
|
||||
static bool compressMipmaps(uint f, const InputOptions::Private & inputOptions, const OutputOptions::Private & outputOptions, const CompressionOptions::Private & compressionOptions)
|
||||
{
|
||||
uint w = inputOptions.targetWidth;
|
||||
uint h = inputOptions.targetHeight;
|
||||
uint d = inputOptions.targetDepth;
|
||||
|
||||
int inputImageIdx = findMipmap(inputOptions, f, 0, w, h, d);
|
||||
if (inputImageIdx == -1)
|
||||
{
|
||||
// First mipmap missing.
|
||||
if (outputOptions.errorHandler != NULL) outputOptions.errorHandler->error(Error_InvalidInput);
|
||||
return false;
|
||||
}
|
||||
|
||||
ImagePair pair;
|
||||
|
||||
const uint mipmapCount = inputOptions.realMipmapCount();
|
||||
nvDebugCheck(mipmapCount > 0);
|
||||
|
||||
for (uint m = 0; m < mipmapCount; m++)
|
||||
{
|
||||
if (outputOptions.outputHandler)
|
||||
{
|
||||
int size = computeImageSize(w, h, compressionOptions.bitcount, compressionOptions.format);
|
||||
outputOptions.outputHandler->mipmap(size, w, h, d, f, m);
|
||||
}
|
||||
|
||||
inputImageIdx = findImage(inputOptions, f, w, h, d, inputImageIdx, &pair);
|
||||
|
||||
// @@ Where to do the color transform?
|
||||
// - Color transform may not be linear, so we cannot do before computing mipmaps.
|
||||
// - Should be done in linear space, that is, after gamma correction.
|
||||
|
||||
|
||||
pair.toFixed(inputOptions);
|
||||
|
||||
// @@ Quantization should be done in compressMipmap! @@ It should not modify the input image!!!
|
||||
quantize(pair.fixedImage(), compressionOptions);
|
||||
|
||||
compressMipmap(pair.fixedImage(), outputOptions, compressionOptions);
|
||||
|
||||
// Compute extents of next mipmap:
|
||||
w = max(1U, w / 2);
|
||||
h = max(1U, h / 2);
|
||||
d = max(1U, d / 2);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
#endif // 0
|
||||
|
||||
bool Compressor::Private::compressMipmap(const Image * image, const OutputOptions::Private & outputOptions, const CompressionOptions::Private & compressionOptions) const
|
||||
{
|
||||
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);
|
||||
cudaCompressDXT1(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);
|
||||
cudaCompressDXT3(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);
|
||||
cudaCompressDXT5(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;
|
||||
}
|
||||
@ -26,6 +26,11 @@
|
||||
|
||||
#include "nvtt.h"
|
||||
|
||||
namespace nv
|
||||
{
|
||||
class Image;
|
||||
}
|
||||
|
||||
namespace nvtt
|
||||
{
|
||||
|
||||
@ -33,6 +38,17 @@ namespace nvtt
|
||||
{
|
||||
Private() {}
|
||||
|
||||
bool compress(const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions) const;
|
||||
int estimateSize(const InputOptions::Private & inputOptions, const CompressionOptions::Private & compressionOptions) const;
|
||||
|
||||
private:
|
||||
|
||||
bool outputHeader(const InputOptions::Private & inputOptions, const OutputOptions::Private & outputOptions, const CompressionOptions::Private & compressionOptions) const;
|
||||
bool compressMipmap(const nv::Image * image, const OutputOptions::Private & outputOptions, const CompressionOptions::Private & compressionOptions) const;
|
||||
|
||||
|
||||
public:
|
||||
|
||||
bool cudaSupported;
|
||||
bool cudaEnabled;
|
||||
};
|
||||
|
||||
@ -102,7 +102,7 @@ void InputOptions::reset()
|
||||
m.colorTransform = ColorTransform_None;
|
||||
m.linearTransform = Matrix(identity);
|
||||
|
||||
m.generateMipmaps = false;
|
||||
m.generateMipmaps = true;
|
||||
m.maxLevel = -1;
|
||||
m.mipmapFilter = MipmapFilter_Box;
|
||||
|
||||
|
||||
@ -139,6 +139,7 @@ static bool outputHeader(const InputOptions::Private & inputOptions, const Outpu
|
||||
|
||||
if (compressionOptions.format == Format_DXT1 || compressionOptions.format == Format_DXT1a) {
|
||||
header.setFourCC('D', 'X', 'T', '1');
|
||||
if (inputOptions.isNormalMap) header.setNormalFlag(true);
|
||||
}
|
||||
else if (compressionOptions.format == Format_DXT3) {
|
||||
header.setFourCC('D', 'X', 'T', '3');
|
||||
@ -175,9 +176,6 @@ static bool outputHeader(const InputOptions::Private & inputOptions, const Outpu
|
||||
outputOptions.errorHandler->error(Error_FileWrite);
|
||||
}
|
||||
|
||||
// Revert swap.
|
||||
header.swapBytes();
|
||||
|
||||
return writeSucceed;
|
||||
}
|
||||
|
||||
@ -670,32 +668,6 @@ static bool compress(const InputOptions::Private & inputOptions, const OutputOpt
|
||||
}
|
||||
|
||||
|
||||
Compressor::Compressor() : m(*new Compressor::Private())
|
||||
{
|
||||
m.cudaSupported = cuda::isHardwarePresent();
|
||||
m.cudaEnabled = true;
|
||||
|
||||
// @@ Do CUDA initialization here.
|
||||
|
||||
}
|
||||
|
||||
Compressor::~Compressor()
|
||||
{
|
||||
// @@ Free CUDA resources here.
|
||||
}
|
||||
|
||||
void Compressor::enableCudaAceleration(bool enable)
|
||||
{
|
||||
if (m.cudaSupported)
|
||||
{
|
||||
m.cudaEnabled = enable;
|
||||
}
|
||||
}
|
||||
|
||||
bool Compressor::isCudaAcelerationEnabled() const
|
||||
{
|
||||
return m.cudaEnabled;
|
||||
}
|
||||
|
||||
|
||||
/// Compress the input texture with the given compression options.
|
||||
@ -705,38 +677,6 @@ bool Compressor::process(const InputOptions & inputOptions, const CompressionOpt
|
||||
}
|
||||
|
||||
|
||||
/// Estimate the size of compressing the input with the given options.
|
||||
int Compressor::estimateSize(const InputOptions & inputOptions, const CompressionOptions & compressionOptions) const
|
||||
{
|
||||
const Format format = compressionOptions.m.format;
|
||||
const uint bitCount = compressionOptions.m.bitcount;
|
||||
|
||||
inputOptions.m.computeTargetExtents();
|
||||
|
||||
uint mipmapCount = inputOptions.m.realMipmapCount();
|
||||
|
||||
int size = 0;
|
||||
|
||||
for (uint f = 0; f < inputOptions.m.faceCount; f++)
|
||||
{
|
||||
uint w = inputOptions.m.targetWidth;
|
||||
uint h = inputOptions.m.targetHeight;
|
||||
uint d = inputOptions.m.targetDepth;
|
||||
|
||||
for (uint m = 0; m < mipmapCount; m++)
|
||||
{
|
||||
size += computeImageSize(w, h, bitCount, format);
|
||||
|
||||
// Compute extents of next mipmap:
|
||||
w = max(1U, w / 2);
|
||||
h = max(1U, h / 2);
|
||||
d = max(1U, d / 2);
|
||||
}
|
||||
}
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
|
||||
/// Return a string for the given error.
|
||||
const char * nvtt::errorString(Error e)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user