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authorsanine <sanine.not@pm.me>2022-10-12 13:26:36 -0500
committersanine <sanine.not@pm.me>2022-10-12 13:26:36 -0500
commitf567ea1e2798fd3156a416e61f083ea3e6b95719 (patch)
tree53b51bda93aadf9dd13fcd77635b8c4b5c813768 /libs/pixman-0.40.0/demos/trap-test.c
parent530ffd0b7d3c39757b20f00716e486b5caf89aff (diff)
add pixman and libpngraylib
Diffstat (limited to 'libs/pixman-0.40.0/demos/trap-test.c')
-rw-r--r--libs/pixman-0.40.0/demos/trap-test.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/libs/pixman-0.40.0/demos/trap-test.c b/libs/pixman-0.40.0/demos/trap-test.c
new file mode 100644
index 0000000..19295e7
--- /dev/null
+++ b/libs/pixman-0.40.0/demos/trap-test.c
@@ -0,0 +1,49 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "pixman.h"
+#include "gtk-utils.h"
+
+int
+main (int argc, char **argv)
+{
+#define WIDTH 200
+#define HEIGHT 200
+
+ pixman_image_t *src_img;
+ pixman_image_t *mask_img;
+ pixman_image_t *dest_img;
+ pixman_trap_t trap;
+ pixman_color_t white = { 0x0000, 0xffff, 0x0000, 0xffff };
+ uint32_t *bits = malloc (WIDTH * HEIGHT * 4);
+ uint32_t *mbits = malloc (WIDTH * HEIGHT);
+
+ memset (mbits, 0, WIDTH * HEIGHT);
+ memset (bits, 0xff, WIDTH * HEIGHT * 4);
+
+ trap.top.l = pixman_int_to_fixed (50) + 0x8000;
+ trap.top.r = pixman_int_to_fixed (150) + 0x8000;
+ trap.top.y = pixman_int_to_fixed (30);
+
+ trap.bot.l = pixman_int_to_fixed (50) + 0x8000;
+ trap.bot.r = pixman_int_to_fixed (150) + 0x8000;
+ trap.bot.y = pixman_int_to_fixed (150);
+
+ mask_img = pixman_image_create_bits (PIXMAN_a8, WIDTH, HEIGHT, mbits, WIDTH);
+ src_img = pixman_image_create_solid_fill (&white);
+ dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, bits, WIDTH * 4);
+
+ pixman_add_traps (mask_img, 0, 0, 1, &trap);
+
+ pixman_image_composite (PIXMAN_OP_OVER,
+ src_img, mask_img, dest_img,
+ 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
+
+ show_image (dest_img);
+
+ pixman_image_unref (src_img);
+ pixman_image_unref (dest_img);
+ free (bits);
+
+ return 0;
+}