1 #include <stdio.h>
2 #include <stdlib.h>
3 #include "pixman.h"
4 #include "gtk-utils.h"
5
6 int
main(int argc,char ** argv)7 main (int argc, char **argv)
8 {
9 #define WIDTH 200
10 #define HEIGHT 200
11
12 #define d2f pixman_double_to_fixed
13
14 uint32_t *src = malloc (WIDTH * HEIGHT * 4);
15 uint32_t *mask = malloc (WIDTH * HEIGHT * 4);
16 uint32_t *dest = malloc (WIDTH * HEIGHT * 4);
17 pixman_fixed_t convolution[] =
18 {
19 d2f (3), d2f (3),
20 d2f (0.5), d2f (0.5), d2f (0.5),
21 d2f (0.5), d2f (0.5), d2f (0.5),
22 d2f (0.5), d2f (0.5), d2f (0.5),
23 };
24 pixman_image_t *simg, *mimg, *dimg;
25
26 int i;
27
28 for (i = 0; i < WIDTH * HEIGHT; ++i)
29 {
30 src[i] = 0x7f007f00;
31 mask[i] = (i % 256) * 0x01000000;
32 dest[i] = 0;
33 }
34
35 simg = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, src, WIDTH * 4);
36 mimg = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, mask, WIDTH * 4);
37 dimg = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, dest, WIDTH * 4);
38
39 pixman_image_set_filter (mimg, PIXMAN_FILTER_CONVOLUTION,
40 convolution, 11);
41
42 pixman_image_composite (PIXMAN_OP_OVER, simg, mimg, dimg, 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
43
44 show_image (dimg);
45
46 return 0;
47 }
48