From 48d0dcbd5b7f80810ce259bc9ed6f57f99e27ca9 Mon Sep 17 00:00:00 2001 From: marha Date: Wed, 16 Feb 2011 16:53:37 +0000 Subject: pixman mesa git update 16 Feb 2011 --- pixman/demos/convolution-test.c | 47 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 pixman/demos/convolution-test.c (limited to 'pixman/demos/convolution-test.c') diff --git a/pixman/demos/convolution-test.c b/pixman/demos/convolution-test.c new file mode 100644 index 000000000..da284af7b --- /dev/null +++ b/pixman/demos/convolution-test.c @@ -0,0 +1,47 @@ +#include +#include +#include "pixman.h" +#include "gtk-utils.h" + +int +main (int argc, char **argv) +{ +#define WIDTH 200 +#define HEIGHT 200 + +#define d2f pixman_double_to_fixed + + uint32_t *src = malloc (WIDTH * HEIGHT * 4); + uint32_t *mask = malloc (WIDTH * HEIGHT * 4); + uint32_t *dest = malloc (WIDTH * HEIGHT * 4); + pixman_fixed_t convolution[] = + { + d2f (3), d2f (3), + d2f (0.5), d2f (0.5), d2f (0.5), + d2f (0.5), d2f (0.5), d2f (0.5), + d2f (0.5), d2f (0.5), d2f (0.5), + }; + pixman_image_t *simg, *mimg, *dimg; + + int i; + + for (i = 0; i < WIDTH * HEIGHT; ++i) + { + src[i] = 0x7f007f00; + mask[i] = (i % 256) * 0x01000000; + dest[i] = 0; + } + + simg = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, src, WIDTH * 4); + mimg = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, mask, WIDTH * 4); + dimg = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, dest, WIDTH * 4); + + pixman_image_set_filter (mimg, PIXMAN_FILTER_CONVOLUTION, + convolution, 11); + + pixman_image_composite (PIXMAN_OP_OVER, simg, mimg, dimg, 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT); + + show_image (dimg); + + return 0; +} -- cgit v1.2.3