git.mutantstargoat.com Git - voxscape/blob - src/glfb.h

   1 #ifndef OPENGL_FRAMEBUFFER_H_
   2 #define OPENGL_FRAMEBUFFER_H_
   3
   4 /* show pixels with OpenGL
   5  *
   6  * Usage example:
   7  *   glfb_setup(width, height, GLFB_RGBA32, width * 4);
   8  *   ...
   9  *   glfb_update(pixels);
  10  *   glfb_display();
  11  */
  12
  13 enum glfb_pixel_format {
  14         GLFB_IDX8,
  15         GLFB_RGB15,             /* 555 */
  16         GLFB_RGB16,             /* 565 */
  17         GLFB_RGB24,             /* 888 */
  18         GLFB_RGBA32             /* 8888 (alpha ignored) */
  19 };
  20
  21 enum glfb_filter {
  22         GLFB_NEAREST,
  23         GLFB_LINEAR
  24 };
  25
  26 void glfb_setup(int x, int y, enum glfb_pixel_format fmt, int pitch);
  27 void glfb_filter(enum glfb_filter filt);
  28 void glfb_color(int idx, int r, int g, int b);
  29 void glfb_update(void *pixels);
  30 void glfb_display(void);
  31
  32 #endif  /* OPENGL_FRAMEBUFFER_H_ */