#ifndef _GFX_H_
#define _GFX_H_

#include <stdint.h>
#include <SDL2/SDL.h>

#define MAKE_COLOR(r, g, b) ((uint32_t)b|((uint32_t)g<<8)|((uint32_t)r<<16))

#define COLOR_BLACK  0x00000000
#define COLOR_RED    0x00FF0000
#define COLOR_GREEN  0x0000FF00
#define COLOR_BLUE   0x000000FF
#define COLOR_WHITE  0x00FFFFFF
#define COLOR_YELLOW 0x00FFFF00

typedef unsigned int uint;
typedef unsigned long ulong;
typedef unsigned char uchar;

struct gfx_context_t {
    SDL_Window *window;
    SDL_Renderer *renderer;
    SDL_Texture *texture;
    uint32_t *pixels;
    int width;
    int height;
};

extern void gfx_putpixel(struct gfx_context_t *ctxt, int x, int y, uint32_t color);

extern void gfx_clear(struct gfx_context_t *ctxt, uint32_t color);

extern struct gfx_context_t *gfx_create(char *text, uint width, uint height);

extern void *gfx_destroy(struct gfx_context_t *ctxt);

extern void gfx_present(struct gfx_context_t *ctxt);

extern SDL_Keycode gfx_keypressed();

extern SDL_EventType poll_event();

#endif