diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/clip-mixed-antialias.c')
-rw-r--r-- | libs/cairo-1.16.0/test/clip-mixed-antialias.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/clip-mixed-antialias.c b/libs/cairo-1.16.0/test/clip-mixed-antialias.c new file mode 100644 index 0000000..23a55ff --- /dev/null +++ b/libs/cairo-1.16.0/test/clip-mixed-antialias.c @@ -0,0 +1,128 @@ +/* + * Copyright © 2011 Intel Corporation + * + * 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. + * + * Author: Chris Wilson <chris@chris-wilson.co.uk> + */ + +#include "cairo-test.h" + +#define WIDTH 200 +#define HEIGHT 200 + +/* This is an example from the wild, as silly as it is +n 52 0 429 709 rectangle +clip+ +//ANTIALIAS_NONE set-antialias +n 8 0 m 952 0 l 956.417969 0 960 3.582031 960 8 c 960 1807 l 960 1811.417969 956.417969 1815 952 1815 c 8 1815 l 3.582031 1815 0 1811.417969 0 1807 c 0 8 l 0 3.582031 3.582031 0 8 0 c h +clip+ +//EVEN_ODD set-fill-rule +n 0 0 m 480 0 l 480 708 l 0 708 l h 8 1 m 952 1 l 955.867188 1 959 4.132812 959 8 c 959 1807 l 959 1810.867188 955.867188 1814 952 1814 c 8 1814 l 4.132812 1814 1 1810.867188 1 1807 c 1 8 l 1 4.132812 4.132812 1 8 1 c h +clip+ +//WINDING set-fill-rule +//ANTIALIAS_DEFAULT set-antialias +n 960 0 m 52.5 907.5 l 52.5 1815 l 960 1815 l h +clip+ +//ANTIALIAS_NONE set-antialias +n 960 0 m 52.5 0 l 52.5 907.5 l 960 1815 l h +clip+ +*/ + +static void background (cairo_t *cr) +{ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); +} + +static void clip_0 (cairo_t *cr) +{ + cairo_rectangle (cr, 5, 5, 190, 190); + cairo_clip (cr); +} + +static void clip_1 (cairo_t *cr) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + cairo_arc (cr, 100, 100, 125, 0, 2*M_PI); + cairo_clip (cr); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_DEFAULT); +} + +static void +rounded_rectangle (cairo_t *cr, int x, int y, int w, int h, int r) +{ + cairo_new_sub_path (cr); + cairo_arc (cr, x + r, y + r, r, M_PI, 3 * M_PI / 2); + cairo_arc (cr, x + w - r, y + r, r, 3 *M_PI / 2, 2 * M_PI); + cairo_arc (cr, x + w - r, y + h - r, r, 0, M_PI / 2); + cairo_arc (cr, x + r, y + h - r, r, M_PI / 2, M_PI); + cairo_close_path (cr); +} + +static void clip_2 (cairo_t *cr) +{ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + rounded_rectangle (cr, 50, 50, 100, 100, 15); + rounded_rectangle (cr, 60, 60, 80, 80, 5); + cairo_clip (cr); + + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING); +} + +static void clip_3 (cairo_t *cr) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + cairo_rectangle (cr, 40.25, 60.25, 120, 80); + cairo_rectangle (cr, 60.25, 40.25, 80, 120); + cairo_clip (cr); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_DEFAULT); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + background (cr); + + clip_0 (cr); + clip_1 (cr); + clip_2 (cr); + clip_3 (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_mixed_antialias, + "Test drawing through through an mixture of clips", + "clip", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) |