From f567ea1e2798fd3156a416e61f083ea3e6b95719 Mon Sep 17 00:00:00 2001 From: sanine Date: Wed, 12 Oct 2022 13:26:36 -0500 Subject: add pixman and libpng --- libs/pixman-0.40.0/demos/trap-test.c | 49 ++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 libs/pixman-0.40.0/demos/trap-test.c (limited to 'libs/pixman-0.40.0/demos/trap-test.c') 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 +#include +#include +#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; +} -- cgit v1.2.1