#include <SDL.h>
#include <SDL_image.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
// #define NDEBUG
#include "kiss.h"

SDL_Surface *load_image(char *path, SDL_Surface *screen)
{
	SDL_Surface *surface2 = NULL;
	SDL_Surface *surface = NULL;
	surface = IMG_LOAD(path);
	surface2 = SDL_CONVERTSURFACE(surface, screen->format, 0);
error:
	SDL_FreeSurface(surface);
	return surface2;
}
#define LOAD_IMAGE(...) SDL_CHK(load_image, __VA_ARGS__)

int main(void)
{
	SDL_Window *window = NULL;
	SDL_Surface *screen = NULL;
	SDL_Surface *logo = NULL;
	int exit_status = EXIT_FAILURE;
	uint8_t colours[][3] = {
		{ 0xFF, 0, 0 },
		{ 0, 0xFF, 0 },
		{ 0, 0, 0xFF },
		{ 0, 0, 0 }
	};
	int i;
	int n;

	SDL_INIT(SDL_INIT_VIDEO);
	IMG_INIT(IMG_INIT_PNG);
	window = SDL_CREATEWINDOW("SDL Tutorial", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 0, 0, SDL_WINDOW_FULLSCREEN_DESKTOP);
	screen = SDL_GETWINDOWSURFACE(window);

	n = (int)NELEMS(colours);

	for (i=0; i<n; ++i) {
		uint8_t *c = colours[i];
		SDL_FILLRECT(screen, NULL, SDL_MapRGB(screen->format, c[0], c[1], c[2]));
		SDL_UPDATEWINDOWSURFACE(window);
		SDL_Delay(100);
	}

	logo = LOAD_IMAGE("sdl/logo.png", screen);

	SDL_BLITSURFACE(logo, NULL, screen, NULL);
	SDL_UPDATEWINDOWSURFACE(window);

	SDL_Delay(500);

	exit_status = EXIT_SUCCESS;
error:
	SDL_FreeSurface(logo);
	SDL_DestroyWindow(window);
	SDL_Quit();
	exit(exit_status);
}