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/*
* Copyright © 2013 Samsung Electronics
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Bryce Harrington <b.harrington@samsung.com>
* Henry Song <henry.song@samsung.com>
*/
/* This test exercises gaussian blur rendering
*/
/* When we build only for backends other than gl,
include <cairo-gl.h> in blur.c will give errors.
*/
#if 0
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <cairo.h>
#include <cairo-gl.h>
#endif
#include "cairo-test.h"
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
const cairo_test_context_t *ctx = cairo_test_get_context (cr);
int line_width = 20;
int x = width / 2;
int y = height / 2;
int radius = width / 4;
cairo_save (cr);
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_paint (cr);
cairo_restore (cr);
cairo_save (cr);
/* drop shadow */
cairo_arc (cr, x, y, radius, 0, 2 * M_PI);
cairo_set_line_width (cr, line_width);
cairo_set_draw_shadow_only (cr, 1);
cairo_set_shadow (cr, CAIRO_SHADOW_DROP);
cairo_set_shadow_rgba (cr, 0, 0, 0, 0.8);
cairo_set_shadow_blur (cr, 10, 10);
cairo_set_shadow_offset (cr, -42, -7);
cairo_stroke (cr);
/* ring with inset shadow */
cairo_arc (cr, x, y, radius, 0, 2 * M_PI);
cairo_set_line_width (cr, line_width);
cairo_set_source_rgb (cr, 0, 0.5, 0);
cairo_set_draw_shadow_only (cr, 0);
cairo_set_shadow (cr, CAIRO_SHADOW_INSET);
cairo_set_shadow_rgba (cr, 0, 0, 0, 1);
cairo_set_shadow_blur (cr, 5, 2);
cairo_set_shadow_offset (cr, 6, 1);
cairo_stroke (cr);
/* draw spread */
cairo_set_draw_shadow_only (cr, 1);
cairo_set_shadow (cr, CAIRO_SHADOW_DROP);
cairo_set_shadow_rgba (cr, 1, 1, 1, 1);
cairo_set_shadow_blur (cr, 5, 2);
cairo_set_line_width (cr, line_width/5);
cairo_set_source_rgb (cr, 0, 0.5, 0);
cairo_set_shadow_offset (cr, 6, 1);
cairo_arc (cr, x, y, radius, 0, 2 * M_PI);
cairo_stroke (cr);
cairo_restore (cr);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (blur,
"Tests gaussian blur of a drawn image",
"gl, blur, operator", /* keywords */
NULL, /* requirements */
256, 256,
NULL, draw)
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