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#include "imgen.h"
#include <fstream>
namespace {
inline void write_color(std::ofstream& out, const imgen::color& color) {
out << std::get<0>(color);
out << std::get<1>(color);
out << std::get<2>(color);
}
}
namespace imgen {
void write_ppm(
const std::string& path,
const std::size_t sizeX,
const std::size_t sizeY,
std::function<color(std::size_t, std::size_t)> generator
) {
std::ofstream out;
out.open(path, std::ios::binary | std::ios::out);
out.sync_with_stdio(false);
out << "P6\n" << sizeX << " " << sizeY << "\n255\n";
for ( std::size_t posY = 0; posY < sizeY; ++posY ) {
for ( std::size_t posX = 0; posX < sizeX; ++posX ) {
write_color(out, generator(posX, posY));
}
}
}
}
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