1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <string.h> 4 #include "pixman.h" 5 #include "gtk-utils.h" 6 7 int 8 main (int argc, char **argv) 9 { 10 #define WIDTH 200 11 #define HEIGHT 200 12 13 pixman_image_t *src_img; 14 pixman_image_t *mask_img; 15 pixman_image_t *dest_img; 16 pixman_trap_t trap; 17 pixman_color_t white = { 0x0000, 0xffff, 0x0000, 0xffff }; 18 uint32_t *bits = malloc (WIDTH * HEIGHT * 4); 19 uint32_t *mbits = malloc (WIDTH * HEIGHT); 20 21 memset (mbits, 0, WIDTH * HEIGHT); 22 memset (bits, 0xff, WIDTH * HEIGHT * 4); 23 24 trap.top.l = pixman_int_to_fixed (50) + 0x8000; 25 trap.top.r = pixman_int_to_fixed (150) + 0x8000; 26 trap.top.y = pixman_int_to_fixed (30); 27 28 trap.bot.l = pixman_int_to_fixed (50) + 0x8000; 29 trap.bot.r = pixman_int_to_fixed (150) + 0x8000; 30 trap.bot.y = pixman_int_to_fixed (150); 31 32 mask_img = pixman_image_create_bits (PIXMAN_a8, WIDTH, HEIGHT, mbits, WIDTH); 33 src_img = pixman_image_create_solid_fill (&white); 34 dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, bits, WIDTH * 4); 35 36 pixman_add_traps (mask_img, 0, 0, 1, &trap); 37 38 pixman_image_composite (PIXMAN_OP_OVER, 39 src_img, mask_img, dest_img, 40 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT); 41 42 show_image (dest_img); 43 44 pixman_image_unref (src_img); 45 pixman_image_unref (dest_img); 46 free (bits); 47 48 return 0; 49 } 50
