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 400
10 #define HEIGHT 200
11
12 uint32_t *dest = malloc (WIDTH * HEIGHT * 4);
13 pixman_image_t *src_img;
14 pixman_image_t *dest_img;
15 int i;
16 pixman_gradient_stop_t stops[2] =
17 {
18 { pixman_int_to_fixed (0), { 0x0000, 0x0000, 0xffff, 0xffff } },
19 { pixman_int_to_fixed (1), { 0xffff, 0x1111, 0x1111, 0xffff } }
20 };
21 pixman_point_fixed_t p1 = { pixman_double_to_fixed (50), 0 };
22 pixman_point_fixed_t p2 = { pixman_double_to_fixed (200), 0 };
23 #if 0
24 pixman_transform_t trans = {
25 { { pixman_double_to_fixed (2), pixman_double_to_fixed (0.5), pixman_double_to_fixed (-100), },
26 { pixman_double_to_fixed (0), pixman_double_to_fixed (3), pixman_double_to_fixed (0), },
27 { pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) }
28 }
29 };
30 #else
31 pixman_transform_t trans = {
32 { { pixman_fixed_1, 0, 0 },
33 { 0, pixman_fixed_1, 0 },
34 { 0, 0, pixman_fixed_1 } }
35 };
36 #endif
37
38 #if 0
39 pixman_point_fixed_t c_inner;
40 pixman_point_fixed_t c_outer;
41 pixman_fixed_t r_inner;
42 pixman_fixed_t r_outer;
43 #endif
44
45 for (i = 0; i < WIDTH * HEIGHT; ++i)
46 dest[i] = 0xff00ff00;
47
48 dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
49 WIDTH, HEIGHT,
50 dest,
51 WIDTH * 4);
52
53 #if 0
54 c_inner.x = pixman_double_to_fixed (50.0);
55 c_inner.y = pixman_double_to_fixed (50.0);
56 c_outer.x = pixman_double_to_fixed (50.0);
57 c_outer.y = pixman_double_to_fixed (50.0);
58 r_inner = 0;
59 r_outer = pixman_double_to_fixed (50.0);
60
61 src_img = pixman_image_create_conical_gradient (&c_inner, r_inner,
62 stops, 2);
63 #endif
64 #if 0
65 src_img = pixman_image_create_conical_gradient (&c_inner, r_inner,
66 stops, 2);
67 src_img = pixman_image_create_linear_gradient (&c_inner, &c_outer,
68 r_inner, r_outer,
69 stops, 2);
70 #endif
71
72 src_img = pixman_image_create_linear_gradient (&p1, &p2,
73 stops, 2);
74
75 pixman_image_set_transform (src_img, &trans);
76 pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NONE);
77
78 pixman_image_composite (PIXMAN_OP_OVER, src_img, NULL, dest_img,
79 0, 0, 0, 0, 0, 0, 10 * WIDTH, HEIGHT);
80
81 printf ("0, 0: %x\n", dest[0]);
82 printf ("10, 10: %x\n", dest[10 * 10 + 10]);
83 printf ("w, h: %x\n", dest[(HEIGHT - 1) * 100 + (WIDTH - 1)]);
84
85 show_image (dest_img);
86
87 pixman_image_unref (src_img);
88 pixman_image_unref (dest_img);
89 free (dest);
90
91 return 0;
92 }
93