/*
Main
*/
int main(int argc, char *argv[]) /*list the chunks*/
{
bool ignore_checksums = false;
std::string filename = "";
for (int i = 1; i < argc; i++)
{
if(std::string(argv[i]) == "--ignore_checksums") ignore_checksums = true;
else filename = argv[i];
}
if(filename == "")
{
std::cout << "Please provide a filename to preview" << std::endl;
return 0;
}
std::vector<unsigned char> buffer;
std::vector<unsigned char> image;
unsigned w, h;
lodepng::load_file(buffer, filename); //load the image file with given filename
lodepng::State state;
if(ignore_checksums)
{
state.decoder.ignore_crc = 1;
state.decoder.zlibsettings.ignore_adler32 = 1;
}
unsigned error = lodepng::decode(image, w, h, state, buffer);
if(error)
{
std::cout << "decoder error " << error << ": " << lodepng_error_text(error) << std::endl;
return 0;
}
std::cout << "Filesize: " << buffer.size() << " (" << buffer.size() / 1024 << "K)" << std::endl;
std::cout << "Width: " << w << std::endl;
std::cout << "Height: " << h << std::endl;
std::cout << "Num pixels: " << w * h << std::endl;
if(w > 0 && h > 0)
{
std::cout << "Top left pixel color:"
<< " r: " << (int)image[0]
<< " g: " << (int)image[1]
<< " b: " << (int)image[2]
<< " a: " << (int)image[3]
<< std::endl;
}
displayPNGInfo(state.info_png);
std::cout << std::endl;
displayChunkNames(buffer);
std::cout << std::endl;
displayFilterTypes(buffer, ignore_checksums);
std::cout << std::endl;
displayAsciiArt(image, w, h);
}
/*
Main
*/
int main(int argc, char *argv[]) /*list the chunks*/
{
if(argc < 2)
{
std::cout << "Please provide a filename to preview" << std::endl;
return 0;
}
const char* filename = argv[1];
std::vector<unsigned char> buffer;
std::vector<unsigned char> image;
unsigned w, h;
lodepng::load_file(buffer, filename); //load the image file with given filename
lodepng::State state;
unsigned error = lodepng::decode(image, w, h, state, buffer);
if(error)
{
std::cout << "decoder error " << error << ": " << lodepng_error_text(error) << std::endl;
return 0;
}
std::cout << "Filesize: " << buffer.size() << " (" << buffer.size() / 1024 << "K)" << std::endl;
std::cout << "Width: " << w << std::endl;
std::cout << "Height: " << h << std::endl;
std::cout << "Num pixels: " << w * h << std::endl;
if(w > 0 && h > 0)
{
std::cout << "Top left pixel color:"
<< " r: " << (int)image[0]
<< " g: " << (int)image[1]
<< " b: " << (int)image[2]
<< " a: " << (int)image[3]
<< std::endl;
}
displayPNGInfo(state.info_png);
std::cout << std::endl;
displayChunkNames(buffer);
std::cout << std::endl;
displayFilterTypes(buffer);
std::cout << std::endl;
displayAsciiArt(image, w, h);
}
unsigned showFileInfo(const std::string& filename, const Options& options)
{
std::vector<unsigned char> buffer;
std::vector<unsigned char> image;
unsigned w, h;
lodepng::load_file(buffer, filename); //load the image file with given filename
lodepng::State state;
state.info_raw.colortype = LCT_RGBA;
state.info_raw.bitdepth = 16;
unsigned error = lodepng::decode(image, w, h, state, buffer);
if(error)
{
std::cout << "Decoder error " << error << ": " << lodepng_error_text(error) << std::endl;
}
bool extra_newlines = false;
if(!error && options.show_png_summary)
{
std::cout << "Filesize: " << buffer.size() << " (" << buffer.size() / 1024 << "K)" << ", ";
std::cout << w << "x" << h << ", ";
std::cout << "Color: " << colorTypeString(state.info_png.color.colortype) << ", " << state.info_png.color.bitdepth << " bit" << std::endl;
if(extra_newlines) std::cout << std::endl;
}
if(!error && options.show_png_info)
{
std::cout << "Filesize: " << buffer.size() << " (" << buffer.size() / 1024 << "K)" << std::endl;
std::cout << "Width: " << w << std::endl;
std::cout << "Height: " << h << std::endl;
if(options.show_extra_png_info) std::cout << "Num pixels: " << w * h << std::endl;
if(options.show_extra_png_info && w > 0 && h > 0)
{
std::ios_base::fmtflags flags = std::cout.flags();
std::cout << "Top left pixel color: #"
<< std::hex << std::setfill('0')
<< std::setw(2) << (int)image[0] << std::setw(2) << (int)image[1] << std::setw(2) << (int)image[2] << std::setw(2) << (int)image[3]
<< std::endl;
std::cout.flags(flags);
}
displayPNGInfo(state.info_png, options);
if(extra_newlines) std::cout << std::endl;
}
if(options.show_chunks || options.show_chunks2)
{
displayChunkNames(buffer, options);
if(extra_newlines) std::cout << std::endl;
}
if(options.show_filters)
{
displayFilterTypes(buffer);
if(extra_newlines) std::cout << std::endl;
}
if(options.show_palette)
{
displayPalette(buffer);
if(extra_newlines) std::cout << std::endl;
}
if(options.show_palette_pixels)
{
displayPalettePixels(buffer);
if(extra_newlines) std::cout << std::endl;
}
if (!error && options.show_ascii_art)
{
displayAsciiArt(image, w, h, options.ascii_art_size);
if(extra_newlines) std::cout << std::endl;
}
if (!error && (options.show_colors_hex || options.show_colors_hex_16))
{
displayColorsHex(image, w, h, options.show_colors_hex_16);
if(extra_newlines) std::cout << std::endl;
}
printZlibInfo(buffer, options);
return 0;
}
