gui-lib/guilib.h

   1 #ifndef GUILIB_H
   2 #define GUILIB_H
   3
   4 /* to be provided by the hardware implementation */
   5 extern unsigned char *framebuffer;
   6 extern void fb_refresh();
   7
   8 unsigned int guilib_framebuffer_width(void);
   9 unsigned int guilib_framebuffer_height(void);
  10 unsigned int guilib_framebuffer_size(void);
  11
  12 /* implemented by guilib */
  13 void guilib_init(void);
  14
  15 /* generic pixel value accessors
  16  * the get method is only needed by the simulators */
  17 void guilib_set_pixel(int x, int y, int v);
  18 int  guilib_get_pixel(int x, int y);
  19 void guilib_invert(int start, int lines);
  20 void guilib_clear(void);
  21
  22 /* functions for graphics context management */
  23 void guilib_fb_lock(void);
  24 void guilib_fb_unlock(void);
  25
  26 struct guilib_image {
  27         unsigned int width;
  28         unsigned int height;
  29         char data[];
  30 };
  31
  32 void guilib_blit_image(const struct guilib_image *img, int x, int y);
  33
  34 #endif /* GUILIB_H */
  35