int _tmain(int argc, _TCHAR* argv[]) {
#else
int main(int argc, char **argv) {
#endif
if(argc != 2 && argc != 3) {
fprintf(stderr, "Usage: sc <img1>\n");
return 1;
}
int spSize = 5;
if(argc == 3) {
sscanf(argv[2], "%d", &spSize);
}
ImageFile imgFile (argv[1]);
if(!imgFile.Load()) {
fprintf(stderr, "Error loading file: %s\n", argv[1]);
return 1;
}
FasTC::Image<> *img = imgFile.GetImage();
const int kWidth = img->GetWidth();
const int kHeight = img->GetHeight();
const int nPixels = kWidth * kHeight;
const uint32 pixelBufSz = nPixels * sizeof(FasTC::Pixel);
FasTC::Pixel *pixels = new FasTC::Pixel[pixelBufSz];
memcpy(pixels, img->GetPixels(), pixelBufSz);
uint32 *rawPixels = new uint32[kWidth * kHeight];
for(int i = 0; i < nPixels; i++) {
// Pixels are stored as little endian ARGB, so we want ABGR
pixels[i].Shuffle(0x6C); // 01 10 11 00
rawPixels[i] = pixels[i].Pack();
}
int *labels = new int[nPixels];
int numLabels;
SLIC slic;
slic.PerformSLICO_ForGivenStepSize(
rawPixels,
kWidth,
kHeight,
labels,
numLabels,
spSize, 1.0);
std::unordered_map<uint32, Region> regions;
CollectPixels(kWidth, kHeight, pixels, labels, regions);
std::cout << "Num regions: " << regions.size() << std::endl;
for(auto &r : regions) {
r.second.Compress();
r.second.Reconstruct();
}
for(int i = 0; i < nPixels; i++) {
pixels[i] = regions[labels[i]].GetNextPixel();
pixels[i].Shuffle(0x6C);
}
std::vector<Partition<4, 4> > partitions;
EnumerateBPTC(partitions);
std::cout << partitions.size() << " 4x4 BPTC partitions" << std::endl;
VpTree<Partition<4, 4>, Partition<4, 4>::Distance> vptree;
vptree.create(partitions);
// Just to test, find the partition close to half 0 half 1..
Partition<4, 4> test;
for(uint32 i = 0; i < 16; i++) {
if(i < 8) {
test[i] = 0;
} else {
test[i] = 1;
}
}
vector<Partition<4, 4> > closest;
vptree.search(test, 1, &closest, NULL);
std::cout << closest[0].GetIndex() << std::endl;
BPTCC::CompressionSettings settings;
settings.m_NumSimulatedAnnealingSteps = 0;
settings.m_ShapeSelectionFn = ChosePresegmentedShape<4, 4>;
SelectionInfo info(vptree, labels, kWidth, kHeight);
settings.m_ShapeSelectionUserData = &info;
uint8 *outBuf = new uint8[kWidth * kHeight];
FasTC::CompressionJob cj(
FasTC::eCompressionFormat_BPTC,
reinterpret_cast<const uint8 *>(pixels),
outBuf,
static_cast<uint32>(kWidth),
static_cast<uint32>(kHeight));
StopWatch sw;
sw.Start();
BPTCC::Compress(cj, settings);
sw.Stop();
std::cout << "Compression time: " << sw.TimeInMilliseconds() << "ms" << std::endl;
CompressedImage ci(kWidth, kHeight, FasTC::eCompressionFormat_BPTC, outBuf);
FasTC::Image<> outImg(kWidth, kHeight, pixels);
std::cout << "PSNR: " << outImg.ComputePSNR(&ci) << "db" << std::endl;
ImageFile outImgFile("out.png", eFileFormat_PNG, outImg);
outImgFile.Write();
delete [] labels;
delete [] rawPixels;
delete [] pixels;
return 0;
}
int main(int argc, char **argv) {
int fileArg = 1;
if(fileArg == argc) {
PrintUsage();
exit(1);
}
char decompressedOutput[256]; decompressedOutput[0] = '\0';
bool bNoDecompress = false;
int numJobs = 0;
int quality = 50;
int numThreads = 1;
int numCompressions = 1;
bool bUseSIMD = false;
bool bSaveLog = false;
bool bUseAtomics = false;
bool bUsePVRTexLib = false;
bool bUseNVTT = false;
bool bVerbose = false;
FasTC::ECompressionFormat format = FasTC::eCompressionFormat_BPTC;
bool knowArg = false;
do {
knowArg = false;
if(strcmp(argv[fileArg], "-n") == 0) {
fileArg++;
if(fileArg == argc || (numCompressions = atoi(argv[fileArg])) < 0) {
PrintUsage();
exit(1);
}
fileArg++;
knowArg = true;
continue;
}
if(strcmp(argv[fileArg], "-f") == 0) {
fileArg++;
if(fileArg == argc) {
PrintUsage();
exit(1);
} else {
if(!strcmp(argv[fileArg], "PVRTC")) {
format = FasTC::eCompressionFormat_PVRTC4;
} else if(!strcmp(argv[fileArg], "PVRTCLib")) {
format = FasTC::eCompressionFormat_PVRTC4;
bUsePVRTexLib = true;
} else if(!strcmp(argv[fileArg], "BPTCLib")) {
format = FasTC::eCompressionFormat_BPTC;
bUseNVTT = true;
} else if(!strcmp(argv[fileArg], "ETC1")) {
format = FasTC::eCompressionFormat_ETC1;
} else if(!strcmp(argv[fileArg], "DXT1")) {
format = FasTC::eCompressionFormat_DXT1;
} else if(!strcmp(argv[fileArg], "DXT5")) {
format = FasTC::eCompressionFormat_DXT5;
}
}
fileArg++;
knowArg = true;
continue;
}
if(strcmp(argv[fileArg], "-d") == 0) {
fileArg++;
if(fileArg == argc) {
PrintUsage();
exit(1);
} else {
size_t sz = 255;
sz = ::std::min(sz, static_cast<size_t>(strlen(argv[fileArg])));
memcpy(decompressedOutput, argv[fileArg], sz + 1);
}
fileArg++;
knowArg = true;
continue;
}
if(strcmp(argv[fileArg], "-nd") == 0) {
fileArg++;
bNoDecompress = true;
knowArg = true;
continue;
}
if(strcmp(argv[fileArg], "-l") == 0) {
fileArg++;
bSaveLog = true;
knowArg = true;
continue;
}
if(strcmp(argv[fileArg], "-v") == 0) {
fileArg++;
bVerbose = true;
knowArg = true;
continue;
}
if(strcmp(argv[fileArg], "-simd") == 0) {
fileArg++;
bUseSIMD = true;
knowArg = true;
continue;
}
if(strcmp(argv[fileArg], "-t") == 0) {
fileArg++;
if(fileArg == argc || (numThreads = atoi(argv[fileArg])) < 1) {
PrintUsage();
exit(1);
}
fileArg++;
knowArg = true;
continue;
}
if(strcmp(argv[fileArg], "-q") == 0) {
fileArg++;
if(fileArg == argc || (quality = atoi(argv[fileArg])) < 0) {
PrintUsage();
exit(1);
}
fileArg++;
knowArg = true;
continue;
}
if(strcmp(argv[fileArg], "-j") == 0) {
fileArg++;
if(fileArg == argc || (numJobs = atoi(argv[fileArg])) < 0) {
PrintUsage();
exit(1);
}
fileArg++;
knowArg = true;
continue;
}
if(strcmp(argv[fileArg], "-a") == 0) {
fileArg++;
bUseAtomics = true;
knowArg = true;
continue;
}
} while(knowArg && fileArg < argc);
if(fileArg == argc) {
PrintUsage();
exit(1);
}
char basename[256];
ExtractBasename(argv[fileArg], basename, 256);
ImageFile file (argv[fileArg]);
if(!file.Load()) {
fprintf(stderr, "Error loading file: %s\n", argv[fileArg]);
return 1;
}
FasTC::Image<> img(*file.GetImage());
if(bVerbose) {
fprintf(stdout, "Entropy: %.5f\n", img.ComputeEntropy());
fprintf(stdout, "Mean Local Entropy: %.5f\n", img.ComputeMeanLocalEntropy());
}
std::ofstream logFile;
ThreadSafeStreambuf streamBuf(logFile);
std::ostream logStream(&streamBuf);
if(bSaveLog) {
char logname[256];
sprintf(logname, "%s.log", basename);
logFile.open(logname);
}
SCompressionSettings settings;
settings.format = format;
settings.bUseSIMD = bUseSIMD;
settings.bUseAtomics = bUseAtomics;
settings.iNumThreads = numThreads;
settings.iQuality = quality;
settings.iNumCompressions = numCompressions;
settings.iJobSize = numJobs;
settings.bUsePVRTexLib = bUsePVRTexLib;
settings.bUseNVTT = bUseNVTT;
if(bSaveLog) {
settings.logStream = &logStream;
} else {
settings.logStream = NULL;
}
CompressedImage *ci = CompressImage(&img, settings);
if(NULL == ci) {
fprintf(stderr, "Error compressing image!\n");
return 1;
}
double PSNR = img.ComputePSNR(ci);
if(PSNR > 0.0) {
fprintf(stdout, "PSNR: %.3f\n", PSNR);
}
else {
fprintf(stderr, "Error computing PSNR\n");
}
if(bVerbose) {
double SSIM = img.ComputeSSIM(ci);
if(SSIM > 0.0) {
fprintf(stdout, "SSIM: %.9f\n", SSIM);
} else {
fprintf(stderr, "Error computing SSIM\n");
}
}
if(!bNoDecompress) {
if(decompressedOutput[0] != '\0') {
memcpy(basename, decompressedOutput, 256);
} else if(format == FasTC::eCompressionFormat_BPTC) {
strcat(basename, "-bptc.png");
} else if(format == FasTC::eCompressionFormat_PVRTC4) {
strcat(basename, "-pvrtc-4bpp.png");
} else if(format == FasTC::eCompressionFormat_DXT1) {
strcat(basename, "-dxt1.png");
} else if(format == FasTC::eCompressionFormat_ETC1) {
strcat(basename, "-etc1.png");
}
EImageFileFormat fmt = ImageFile::DetectFileFormat(basename);
ImageFile cImgFile (basename, fmt, *ci);
cImgFile.Write();
}
// Cleanup
delete ci;
if(bSaveLog) {
logFile.close();
}
return 0;
}