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| author | Dylan <boss@tehbox.org> | 2026-05-06 13:39:47 +1200 |
|---|---|---|
| committer | Dylan <boss@tehbox.org> | 2026-05-06 13:39:47 +1200 |
| commit | d60976a70e68e1cd312b0e56fe6fbe6c7428cbaa (patch) | |
| tree | 00bc987a6d935ca26e4d4c2d61ad70d7aa3c2f4c /test/main.cpp | |
| parent | a75bdd0e167140eeb4afb091c9dedd84474c8531 (diff) | |
| download | tehimage-d60976a70e68e1cd312b0e56fe6fbe6c7428cbaa.tar.gz tehimage-d60976a70e68e1cd312b0e56fe6fbe6c7428cbaa.zip | |
feat: Started on PNG writing implementation
Currently writes IHDR and IEND chunks correctly
CRC implementation is borrowed from the specification
Writer class now also has a buffer for the CRC calculation
Diffstat (limited to 'test/main.cpp')
| -rw-r--r-- | test/main.cpp | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/test/main.cpp b/test/main.cpp index 6e521f3..5a2525b 100644 --- a/test/main.cpp +++ b/test/main.cpp @@ -12,6 +12,36 @@ using std::cout, std::endl; int main(int argc, char* argv[]) { + // uint8_t poly = 0b10011; + // uint32_t data = 0b11010110110000; + // uint32_t ones = 0b11111; + // char dashes[15]; + // memset(dashes, '-', 14); + // dashes[14] = 0; + // for(int i = 9; i >= 0; i--) + // { + // uint32_t shiftedPoly = poly << i; + // cout << std::bitset<14>(data) << endl << std::bitset<14>(shiftedPoly) << endl << dashes << endl; + // bool greater = false; + // for(int j = 4; j >= 0; j++) + // { + // if(data & (0b1 << (j+i))) + // { + // greater = true; + // break; + // } + // else if (shiftedPoly & (0b1 << (j+i))) + // break; + // } + // if(greater) + // data ^= shiftedPoly; + // } + + // cout << std::bitset<5>(data) << endl; + + // return 0; + + if(argc < 3) { cout << "usage: " << argv[0] << " <in file> <out file>" << endl; @@ -57,7 +87,9 @@ int main(int argc, char* argv[]) TehImage::BMPImage bmp; bmp.readFromFile(infile); - bmp.writeToFile(outfile); + + TehImage::PNGImage png(bmp); + png.writeToFile(outfile); // TehImage::PNGImage png; |