jsp/wikireader/gui.c

   1 #include <wikilib.h>
   2 #include <guilib.h>
   3 #include <malloc.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6
   7 /* FIXME: don't use bootloader includes */
   8 #include <regs.h>
   9
  10 unsigned char *framebuffer;
  11
  12 void fb_init(void)
  13 {
  14         framebuffer = (unsigned char *) malloc((guilib_framebuffer_width() * guilib_framebuffer_height()) / 2);
  15         REG_LCDC_MADD = (unsigned int) framebuffer;
  16 }
  17
  18 void fb_clear(void)
  19 {
  20         memset(framebuffer, 0, (guilib_framebuffer_width() * guilib_framebuffer_height()) / 2);
  21 }
  22
  23 void fb_refresh(void)
  24 {
  25         /* is there a pragma to omit the frame pointer? */
  26         return;
  27 }
  28
  29 /* 1bpp implementation */
  30
  31 void fb_set_pixel(int x, int y, int val)
  32 {
  33         char mask = 1 << (x % 8);
  34         unsigned int byte = (y * guilib_framebuffer_width() + x) / 8;
  35
  36         framebuffer[byte] &= ~mask;
  37
  38         if (val)
  39                 framebuffer[byte] |= mask;
  40 }
  41