1 #include <stdio.h> 2 #include <stdlib.h> 3 #include "pixman.h" 4 #include "gtk-utils.h" 5 6 int 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
