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author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/pixman/demos/gradient-test.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/pixman/demos/gradient-test.c')
-rw-r--r-- | qemu/pixman/demos/gradient-test.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/qemu/pixman/demos/gradient-test.c b/qemu/pixman/demos/gradient-test.c new file mode 100644 index 000000000..e68f69a5f --- /dev/null +++ b/qemu/pixman/demos/gradient-test.c @@ -0,0 +1,92 @@ +#include <stdio.h> +#include <stdlib.h> +#include "pixman.h" +#include "gtk-utils.h" + +int +main (int argc, char **argv) +{ +#define WIDTH 400 +#define HEIGHT 200 + + uint32_t *dest = malloc (WIDTH * HEIGHT * 4); + pixman_image_t *src_img; + pixman_image_t *dest_img; + int i; + pixman_gradient_stop_t stops[2] = + { + { pixman_int_to_fixed (0), { 0x0000, 0x0000, 0xffff, 0xffff } }, + { pixman_int_to_fixed (1), { 0xffff, 0x1111, 0x1111, 0xffff } } + }; + pixman_point_fixed_t p1 = { pixman_double_to_fixed (50), 0 }; + pixman_point_fixed_t p2 = { pixman_double_to_fixed (200), 0 }; +#if 0 + pixman_transform_t trans = { + { { pixman_double_to_fixed (2), pixman_double_to_fixed (0.5), pixman_double_to_fixed (-100), }, + { pixman_double_to_fixed (0), pixman_double_to_fixed (3), pixman_double_to_fixed (0), }, + { pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) } + } + }; +#else + pixman_transform_t trans = { + { { pixman_fixed_1, 0, 0 }, + { 0, pixman_fixed_1, 0 }, + { 0, 0, pixman_fixed_1 } } + }; +#endif + +#if 0 + pixman_point_fixed_t c_inner; + pixman_point_fixed_t c_outer; + pixman_fixed_t r_inner; + pixman_fixed_t r_outer; +#endif + + for (i = 0; i < WIDTH * HEIGHT; ++i) + dest[i] = 0xff00ff00; + + dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8, + WIDTH, HEIGHT, + dest, + WIDTH * 4); + +#if 0 + c_inner.x = pixman_double_to_fixed (50.0); + c_inner.y = pixman_double_to_fixed (50.0); + c_outer.x = pixman_double_to_fixed (50.0); + c_outer.y = pixman_double_to_fixed (50.0); + r_inner = 0; + r_outer = pixman_double_to_fixed (50.0); + + src_img = pixman_image_create_conical_gradient (&c_inner, r_inner, + stops, 2); +#endif +#if 0 + src_img = pixman_image_create_conical_gradient (&c_inner, r_inner, + stops, 2); + src_img = pixman_image_create_linear_gradient (&c_inner, &c_outer, + r_inner, r_outer, + stops, 2); +#endif + + src_img = pixman_image_create_linear_gradient (&p1, &p2, + stops, 2); + + pixman_image_set_transform (src_img, &trans); + pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NONE); + + pixman_image_composite (PIXMAN_OP_OVER, src_img, NULL, dest_img, + 0, 0, 0, 0, 0, 0, 10 * WIDTH, HEIGHT); + + printf ("0, 0: %x\n", dest[0]); + printf ("10, 10: %x\n", dest[10 * 10 + 10]); + printf ("w, h: %x\n", dest[(HEIGHT - 1) * 100 + (WIDTH - 1)]); + + show_image (dest_img); + + pixman_image_unref (src_img); + pixman_image_unref (dest_img); + free (dest); + + return 0; +} |