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authormarha <marha@users.sourceforge.net>2009-07-25 15:41:56 +0000
committermarha <marha@users.sourceforge.net>2009-07-25 15:41:56 +0000
commit4b195776d5fb64e83a4e56627367d8e9ea10cbf7 (patch)
treeaa09d8e4f20fe439598711149b209a6ef45f5b0c /pixman/test/convolution-test.c
parent2fb179f86b0f9ecb7876759b87f9c64634a3f114 (diff)
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Added pixman-0.15.18.tar.gz
Diffstat (limited to 'pixman/test/convolution-test.c')
-rw-r--r--pixman/test/convolution-test.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/pixman/test/convolution-test.c b/pixman/test/convolution-test.c
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+++ b/pixman/test/convolution-test.c
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+#include <stdio.h>
+#include <stdlib.h>
+#include "pixman.h"
+#include "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;
+}