example.c

   1 #include "gifenc.h"
   2
   3 int
   4 main()
   5 {
   6     int i, j;
   7     int w = 120, h = 90;
   8
   9     /* create a GIF */
  10     ge_GIF *gif = ge_new_gif(
  11         "example.gif",  /* file name */
  12         w, h,           /* canvas size */
  13         (uint8_t []) {  /* palette */
  14             0x00, 0x00, 0x00, /* 0 -> black */
  15             0xFF, 0x00, 0x00, /* 1 -> red */
  16             0x00, 0xFF, 0x00, /* 2 -> green */
  17             0x00, 0x00, 0xFF, /* 3 -> blue */
  18         },
  19         2,              /* palette depth == log2(# of colors) */
  20         -1,             /* no transparency */
  21         0               /* infinite loop */
  22     );
  23     /* draw some frames */
  24     for (i = 0; i < 4*6/3; i++) {
  25         for (j = 0; j < w*h; j++)
  26             gif->frame[j] = (i*3 + j) / 6 % 4;
  27         ge_add_frame(gif, 10);
  28     }
  29     /* remember to close the GIF */
  30     ge_close_gif(gif);
  31     return 0;
  32 }