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/clip-in.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 pixman/demos/clip-in.c (limited to 'pixman/demos/clip-in.c') diff --git a/pixman/demos/clip-in.c b/pixman/demos/clip-in.c new file mode 100644 index 000000000..51579811f --- /dev/null +++ b/pixman/demos/clip-in.c @@ -0,0 +1,50 @@ +#include +#include +#include +#include "pixman.h" +#include "gtk-utils.h" + +/* This test demonstrates that clipping is done totally different depending + * on whether the source is transformed or not. + */ +int +main (int argc, char **argv) +{ +#define WIDTH 200 +#define HEIGHT 200 + +#define SMALL 25 + + uint32_t *sbits = malloc (SMALL * SMALL * 4); + uint32_t *bits = malloc (WIDTH * HEIGHT * 4); + pixman_transform_t trans = { + { + { pixman_double_to_fixed (1.0), pixman_double_to_fixed (0), pixman_double_to_fixed (-0.1), }, + { pixman_double_to_fixed (0), pixman_double_to_fixed (1), pixman_double_to_fixed (-0.1), }, + { pixman_double_to_fixed (0), pixman_double_to_fixed (0), pixman_double_to_fixed (1.0) } + } }; + + pixman_image_t *src_img = pixman_image_create_bits (PIXMAN_a8r8g8b8, SMALL, SMALL, sbits, 4 * SMALL); + pixman_image_t *dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, bits, 4 * WIDTH); + + memset (bits, 0xff, WIDTH * HEIGHT * 4); + memset (sbits, 0x00, SMALL * SMALL * 4); + + pixman_image_composite (PIXMAN_OP_IN, + src_img, NULL, dest_img, + 0, 0, 0, 0, SMALL, SMALL, 200, 200); + + pixman_image_set_transform (src_img, &trans); + + pixman_image_composite (PIXMAN_OP_IN, + src_img, NULL, dest_img, + 0, 0, 0, 0, SMALL * 2, SMALL * 2, 200, 200); + + show_image (dest_img); + + pixman_image_unref (src_img); + pixman_image_unref (dest_img); + free (bits); + + return 0; +} -- cgit v1.2.3