You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
651 lines
17 KiB
C++
651 lines
17 KiB
C++
// Copyright NVIDIA Corporation 2007 -- Ignacio Castano <icastano@nvidia.com>
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person
|
|
// obtaining a copy of this software and associated documentation
|
|
// files (the "Software"), to deal in the Software without
|
|
// restriction, including without limitation the rights to use,
|
|
// copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the
|
|
// Software is furnished to do so, subject to the following
|
|
// conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be
|
|
// included in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
|
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
// OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
#include "CompressDXT.h"
|
|
#include "QuickCompressDXT.h"
|
|
#include "OptimalCompressDXT.h"
|
|
#include "CompressionOptions.h"
|
|
#include "OutputOptions.h"
|
|
|
|
// squish
|
|
#include "squish/colourset.h"
|
|
#include "squish/fastclusterfit.h"
|
|
#include "squish/weightedclusterfit.h"
|
|
|
|
#include <nvtt/nvtt.h>
|
|
|
|
#include <nvcore/Memory.h>
|
|
|
|
#include <nvimage/Image.h>
|
|
#include <nvimage/ColorBlock.h>
|
|
#include <nvimage/BlockDXT.h>
|
|
|
|
|
|
// s3_quant
|
|
#if defined(HAVE_S3QUANT)
|
|
#include "extern/s3tc/s3_quant.h"
|
|
#endif
|
|
|
|
// ati tc
|
|
#if defined(HAVE_ATITC)
|
|
#include "extern/atitc/ATI_Compress.h"
|
|
#endif
|
|
|
|
// squish
|
|
#if defined(HAVE_SQUISH)
|
|
#include "extern/squish/squish.h"
|
|
#endif
|
|
|
|
|
|
using namespace nv;
|
|
using namespace nvtt;
|
|
|
|
|
|
nv::FastCompressor::FastCompressor() : m_image(NULL), m_alphaMode(AlphaMode_None)
|
|
{
|
|
}
|
|
|
|
nv::FastCompressor::~FastCompressor()
|
|
{
|
|
}
|
|
|
|
void nv::FastCompressor::setImage(const Image * image, nvtt::AlphaMode alphaMode)
|
|
{
|
|
m_image = image;
|
|
m_alphaMode = alphaMode;
|
|
}
|
|
|
|
void nv::FastCompressor::compressDXT1(const OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock rgba;
|
|
BlockDXT1 block;
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
rgba.init(m_image, x, y);
|
|
|
|
QuickCompress::compressDXT1(rgba, &block);
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void nv::FastCompressor::compressDXT1a(const OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock rgba;
|
|
BlockDXT1 block;
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
rgba.init(m_image, x, y);
|
|
|
|
QuickCompress::compressDXT1a(rgba, &block);
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void nv::FastCompressor::compressDXT3(const nvtt::OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock rgba;
|
|
BlockDXT3 block;
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
rgba.init(m_image, x, y);
|
|
|
|
QuickCompress::compressDXT3(rgba, &block);
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void nv::FastCompressor::compressDXT5(const nvtt::OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock rgba;
|
|
BlockDXT5 block;
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
rgba.init(m_image, x, y);
|
|
|
|
QuickCompress::compressDXT5(rgba, &block, 0);
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void nv::FastCompressor::compressDXT5n(const nvtt::OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock rgba;
|
|
BlockDXT5 block;
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
rgba.init(m_image, x, y);
|
|
|
|
rgba.swizzleDXT5n();
|
|
|
|
QuickCompress::compressDXT5(rgba, &block, 0);
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
nv::SlowCompressor::SlowCompressor() : m_image(NULL), m_alphaMode(AlphaMode_None)
|
|
{
|
|
}
|
|
|
|
nv::SlowCompressor::~SlowCompressor()
|
|
{
|
|
}
|
|
|
|
void nv::SlowCompressor::setImage(const Image * image, nvtt::AlphaMode alphaMode)
|
|
{
|
|
m_image = image;
|
|
m_alphaMode = alphaMode;
|
|
}
|
|
|
|
void nv::SlowCompressor::compressDXT1(const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock rgba;
|
|
BlockDXT1 block;
|
|
|
|
nvsquish::WeightedClusterFit fit;
|
|
//nvsquish::ClusterFit fit;
|
|
//nvsquish::FastClusterFit fit;
|
|
fit.SetMetric(compressionOptions.colorWeight.x(), compressionOptions.colorWeight.y(), compressionOptions.colorWeight.z());
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
|
|
rgba.init(m_image, x, y);
|
|
|
|
if (rgba.isSingleColor())
|
|
{
|
|
OptimalCompress::compressDXT1(rgba.color(0), &block);
|
|
}
|
|
else
|
|
{
|
|
nvsquish::ColourSet colours((uint8 *)rgba.colors(), 0, true);
|
|
fit.SetColourSet(&colours, nvsquish::kDxt1);
|
|
fit.Compress(&block);
|
|
}
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void nv::SlowCompressor::compressDXT1a(const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock rgba;
|
|
BlockDXT1 block;
|
|
|
|
nvsquish::WeightedClusterFit fit;
|
|
fit.SetMetric(compressionOptions.colorWeight.x(), compressionOptions.colorWeight.y(), compressionOptions.colorWeight.z());
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
|
|
rgba.init(m_image, x, y);
|
|
|
|
bool anyAlpha = false;
|
|
bool allAlpha = true;
|
|
|
|
for (uint i = 0; i < 16; i++)
|
|
{
|
|
if (rgba.color(i).a < 128) anyAlpha = true;
|
|
else allAlpha = false;
|
|
}
|
|
|
|
if ((!anyAlpha && rgba.isSingleColor() || allAlpha))
|
|
{
|
|
OptimalCompress::compressDXT1a(rgba.color(0), &block);
|
|
}
|
|
else
|
|
{
|
|
nvsquish::ColourSet colours((uint8 *)rgba.colors(), nvsquish::kDxt1|nvsquish::kWeightColourByAlpha);
|
|
fit.SetColourSet(&colours, nvsquish::kDxt1);
|
|
fit.Compress(&block);
|
|
}
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void nv::SlowCompressor::compressDXT3(const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock rgba;
|
|
BlockDXT3 block;
|
|
|
|
nvsquish::WeightedClusterFit fit;
|
|
fit.SetMetric(compressionOptions.colorWeight.x(), compressionOptions.colorWeight.y(), compressionOptions.colorWeight.z());
|
|
|
|
int flags = 0;
|
|
if (m_alphaMode == AlphaMode_Transparency)
|
|
{
|
|
flags = nvsquish::kWeightColourByAlpha;
|
|
}
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
|
|
rgba.init(m_image, x, y);
|
|
|
|
// Compress explicit alpha.
|
|
OptimalCompress::compressDXT3A(rgba, &block.alpha);
|
|
|
|
// Compress color.
|
|
if (rgba.isSingleColor())
|
|
{
|
|
OptimalCompress::compressDXT1(rgba.color(0), &block.color);
|
|
}
|
|
else
|
|
{
|
|
nvsquish::ColourSet colours((uint8 *)rgba.colors(), flags);
|
|
fit.SetColourSet(&colours, 0);
|
|
fit.Compress(&block.color);
|
|
}
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void nv::SlowCompressor::compressDXT5(const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock rgba;
|
|
BlockDXT5 block;
|
|
|
|
nvsquish::WeightedClusterFit fit;
|
|
fit.SetMetric(compressionOptions.colorWeight.x(), compressionOptions.colorWeight.y(), compressionOptions.colorWeight.z());
|
|
|
|
int flags = 0;
|
|
if (m_alphaMode == AlphaMode_Transparency)
|
|
{
|
|
flags = nvsquish::kWeightColourByAlpha;
|
|
}
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
|
|
rgba.init(m_image, x, y);
|
|
|
|
// Compress alpha.
|
|
if (compressionOptions.quality == Quality_Highest)
|
|
{
|
|
OptimalCompress::compressDXT5A(rgba, &block.alpha);
|
|
}
|
|
else
|
|
{
|
|
QuickCompress::compressDXT5A(rgba, &block.alpha);
|
|
}
|
|
|
|
// Compress color.
|
|
if (rgba.isSingleColor())
|
|
{
|
|
OptimalCompress::compressDXT1(rgba.color(0), &block.color);
|
|
}
|
|
else
|
|
{
|
|
nvsquish::ColourSet colours((uint8 *)rgba.colors(), flags);
|
|
fit.SetColourSet(&colours, 0);
|
|
fit.Compress(&block.color);
|
|
}
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void nv::SlowCompressor::compressDXT5n(const CompressionOptions::Private & compressionOptions, const OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock rgba;
|
|
BlockDXT5 block;
|
|
|
|
nvsquish::WeightedClusterFit fit;
|
|
fit.SetMetric(0, 1, 0);
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
|
|
rgba.init(m_image, x, y);
|
|
|
|
rgba.swizzleDXT5n();
|
|
|
|
// Compress X.
|
|
if (compressionOptions.quality == Quality_Highest)
|
|
{
|
|
OptimalCompress::compressDXT5A(rgba, &block.alpha);
|
|
}
|
|
else
|
|
{
|
|
QuickCompress::compressDXT5A(rgba, &block.alpha);
|
|
}
|
|
|
|
// Compress Y.
|
|
//OptimalCompress::compressDXT1G(rgba, &block.color);
|
|
|
|
/*if (rgba.isSingleColor())
|
|
{
|
|
OptimalCompress::compressDXT1G(rgba.color(0), &block.color);
|
|
}
|
|
else*/
|
|
{
|
|
nvsquish::ColourSet colours((uint8 *)rgba.colors(), 0);
|
|
fit.SetColourSet(&colours, 0);
|
|
fit.Compress(&block.color);
|
|
}
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void nv::SlowCompressor::compressBC4(const CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock rgba;
|
|
AlphaBlockDXT5 block;
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
|
|
rgba.init(m_image, x, y);
|
|
|
|
if (compressionOptions.quality == Quality_Highest)
|
|
{
|
|
OptimalCompress::compressDXT5A(rgba, &block);
|
|
}
|
|
else
|
|
{
|
|
QuickCompress::compressDXT5A(rgba, &block);
|
|
}
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void nv::SlowCompressor::compressBC5(const CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = m_image->width();
|
|
const uint h = m_image->height();
|
|
|
|
ColorBlock xcolor;
|
|
ColorBlock ycolor;
|
|
|
|
BlockATI2 block;
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
|
|
xcolor.init(m_image, x, y);
|
|
xcolor.splatX();
|
|
|
|
ycolor.init(m_image, x, y);
|
|
ycolor.splatY();
|
|
|
|
if (compressionOptions.quality == Quality_Highest)
|
|
{
|
|
OptimalCompress::compressDXT5A(xcolor, &block.x);
|
|
OptimalCompress::compressDXT5A(ycolor, &block.y);
|
|
}
|
|
else
|
|
{
|
|
QuickCompress::compressDXT5A(xcolor, &block.x);
|
|
QuickCompress::compressDXT5A(ycolor, &block.y);
|
|
}
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&block, sizeof(block));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
#if defined(HAVE_S3QUANT)
|
|
|
|
void nv::s3CompressDXT1(const Image * image, const nvtt::OutputOptions::Private & outputOptions)
|
|
{
|
|
const uint w = image->width();
|
|
const uint h = image->height();
|
|
|
|
float error = 0.0f;
|
|
|
|
BlockDXT1 dxtBlock3;
|
|
BlockDXT1 dxtBlock4;
|
|
ColorBlock block;
|
|
|
|
for (uint y = 0; y < h; y += 4) {
|
|
for (uint x = 0; x < w; x += 4) {
|
|
block.init(image, x, y);
|
|
|
|
// Init rgb block.
|
|
RGBBlock rgbBlock;
|
|
rgbBlock.n = 16;
|
|
for (uint i = 0; i < 16; i++) {
|
|
rgbBlock.colorChannel[i][0] = clamp(float(block.color(i).r) / 255.0f, 0.0f, 1.0f);
|
|
rgbBlock.colorChannel[i][1] = clamp(float(block.color(i).g) / 255.0f, 0.0f, 1.0f);
|
|
rgbBlock.colorChannel[i][2] = clamp(float(block.color(i).b) / 255.0f, 0.0f, 1.0f);
|
|
}
|
|
rgbBlock.weight[0] = 1.0f;
|
|
rgbBlock.weight[1] = 1.0f;
|
|
rgbBlock.weight[2] = 1.0f;
|
|
|
|
rgbBlock.inLevel = 4;
|
|
CodeRGBBlock(&rgbBlock);
|
|
|
|
// Copy results to DXT block.
|
|
dxtBlock4.col0.r = rgbBlock.endPoint[0][0];
|
|
dxtBlock4.col0.g = rgbBlock.endPoint[0][1];
|
|
dxtBlock4.col0.b = rgbBlock.endPoint[0][2];
|
|
|
|
dxtBlock4.col1.r = rgbBlock.endPoint[1][0];
|
|
dxtBlock4.col1.g = rgbBlock.endPoint[1][1];
|
|
dxtBlock4.col1.b = rgbBlock.endPoint[1][2];
|
|
|
|
dxtBlock4.setIndices(rgbBlock.index);
|
|
|
|
if (dxtBlock4.col0.u < dxtBlock4.col1.u) {
|
|
swap(dxtBlock4.col0.u, dxtBlock4.col1.u);
|
|
dxtBlock4.indices ^= 0x55555555;
|
|
}
|
|
|
|
uint error4 = blockError(block, dxtBlock4);
|
|
|
|
rgbBlock.inLevel = 3;
|
|
|
|
CodeRGBBlock(&rgbBlock);
|
|
|
|
// Copy results to DXT block.
|
|
dxtBlock3.col0.r = rgbBlock.endPoint[0][0];
|
|
dxtBlock3.col0.g = rgbBlock.endPoint[0][1];
|
|
dxtBlock3.col0.b = rgbBlock.endPoint[0][2];
|
|
|
|
dxtBlock3.col1.r = rgbBlock.endPoint[1][0];
|
|
dxtBlock3.col1.g = rgbBlock.endPoint[1][1];
|
|
dxtBlock3.col1.b = rgbBlock.endPoint[1][2];
|
|
|
|
dxtBlock3.setIndices(rgbBlock.index);
|
|
|
|
if (dxtBlock3.col0.u > dxtBlock3.col1.u) {
|
|
swap(dxtBlock3.col0.u, dxtBlock3.col1.u);
|
|
dxtBlock3.indices ^= (~dxtBlock3.indices >> 1) & 0x55555555;
|
|
}
|
|
|
|
uint error3 = blockError(block, dxtBlock3);
|
|
|
|
if (error3 < error4) {
|
|
error += error3;
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&dxtBlock3, sizeof(dxtBlock3));
|
|
}
|
|
}
|
|
else {
|
|
error += error4;
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(&dxtBlock4, sizeof(dxtBlock4));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
printf("error = %f\n", error/((w+3)/4 * (h+3)/4));
|
|
}
|
|
|
|
#endif // defined(HAVE_S3QUANT)
|
|
|
|
|
|
#if defined(HAVE_ATITC)
|
|
|
|
void nv::atiCompressDXT1(const Image * image, const OutputOptions::Private & outputOptions)
|
|
{
|
|
// Init source texture
|
|
ATI_TC_Texture srcTexture;
|
|
srcTexture.dwSize = sizeof(srcTexture);
|
|
srcTexture.dwWidth = image->width();
|
|
srcTexture.dwHeight = image->height();
|
|
srcTexture.dwPitch = image->width() * 4;
|
|
srcTexture.format = ATI_TC_FORMAT_ARGB_8888;
|
|
srcTexture.dwDataSize = ATI_TC_CalculateBufferSize(&srcTexture);
|
|
srcTexture.pData = (ATI_TC_BYTE*) image->pixels();
|
|
|
|
// Init dest texture
|
|
ATI_TC_Texture destTexture;
|
|
destTexture.dwSize = sizeof(destTexture);
|
|
destTexture.dwWidth = image->width();
|
|
destTexture.dwHeight = image->height();
|
|
destTexture.dwPitch = 0;
|
|
destTexture.format = ATI_TC_FORMAT_DXT1;
|
|
destTexture.dwDataSize = ATI_TC_CalculateBufferSize(&destTexture);
|
|
destTexture.pData = (ATI_TC_BYTE*) mem::malloc(destTexture.dwDataSize);
|
|
|
|
// Compress
|
|
ATI_TC_ConvertTexture(&srcTexture, &destTexture, NULL, NULL, NULL, NULL);
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(destTexture.pData, destTexture.dwDataSize);
|
|
}
|
|
}
|
|
|
|
#endif // defined(HAVE_ATITC)
|
|
|
|
#if defined(HAVE_SQUISH)
|
|
|
|
void nv::squishCompressDXT1(const Image * image, const OutputOptions::Private & outputOptions)
|
|
{
|
|
Image img(*image);
|
|
int count = img.width() * img.height();
|
|
for (int i = 0; i < count; i++)
|
|
{
|
|
Color32 c = img.pixel(i);
|
|
img.pixel(i) = Color32(c.b, c.g, c.r, c.a);
|
|
}
|
|
|
|
int size = squish::GetStorageRequirements(img.width(), img.height(), squish::kDxt1);
|
|
void * blocks = malloc(size);
|
|
|
|
squish::CompressImage((const squish::u8 *)img.pixels(), img.width(), img.height(), blocks, squish::kDxt1 | squish::kColourClusterFit);
|
|
|
|
if (outputOptions.outputHandler != NULL) {
|
|
outputOptions.outputHandler->writeData(blocks, size);
|
|
}
|
|
}
|
|
|
|
#endif // defined(HAVE_SQUISH)
|