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Diffstat (limited to 'test/blur.c')
| -rw-r--r-- | test/blur.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/test/blur.c b/test/blur.c new file mode 100644 index 000000000..92b536712 --- /dev/null +++ b/test/blur.c @@ -0,0 +1,105 @@ +/* + * 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) |