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