Function lodepng_decode_file

dependency/densecrf/examples/lodepng.cpp:4786–4796

#ifdef LODEPNG_COMPILE_DISK
unsigned lodepng_decode_file(unsigned char** out, unsigned* w, unsigned* h, const char* filename,
                             LodePNGColorType colortype, unsigned bitdepth)
{
    unsigned char* buffer = 0;
    size_t buffersize;
    unsigned error;
    error = lodepng_load_file(&buffer, &buffersize, filename);
    if(!error) error = lodepng_decode_memory(out, w, h, buffer, buffersize, colortype, bitdepth);
    lodepng_free(buffer);
    return error;
}

unsigned lodepng_decode32_file(unsigned char** out, unsigned* w, unsigned* h, const char* filename)
{