#include "ff.h"

#include <math.h>
#include <unistd.h>

#define W 800
#define H 600

int main()
{
	pix_t pix[W * H] = {};
	img_t img = { .w = W, .h = H, .pix = pix };

	for (unsigned y = 0; y < H; ++y) {
		for (unsigned x = 0; x < W; ++x) {
			pix_t *out = pix + (W * y + x);
			out->r = 0xffff * x / W;
			out->g = 0;
			out->b = 0xffff * y / H;
			out->a = 0xffff;
		}
	}

	ff_write(STDOUT_FILENO, img);

	return 0;
}