diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/surface-pattern-scale-down-extend.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/surface-pattern-scale-down-extend.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/surface-pattern-scale-down-extend.c b/libs/cairo-1.16.0/test/surface-pattern-scale-down-extend.c new file mode 100644 index 0000000..785678d --- /dev/null +++ b/libs/cairo-1.16.0/test/surface-pattern-scale-down-extend.c @@ -0,0 +1,120 @@ +/* + * Copyright © 2010 M Joonas Pihlaja + * + * 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: M Joonas Pihlaja <jpihlaja@cc.helsinki.fi> + */ +#include "cairo-test.h" + +/* Test that we can simultaneously downscale and extend a surface + * pattern. Reported by Franz Schmid to the cairo mailing list as a + * regression in 1.9.6: + * + * https://lists.cairographics.org/archives/cairo/2010-February/019492.html + */ + +static cairo_test_status_t +draw_with_extend (cairo_t *cr, int w, int h, cairo_extend_t extend) +{ + cairo_pattern_t *pattern; + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + + cairo_save (cr); + + /* When the destination surface is created by cairo-test-suite to + * test device-offset, it is bigger than w x h. This test expects + * the group to have a size which is exactly w x h, so it must + * clip to the this rectangle to guarantee that the group will + * have the correct size. + */ + cairo_rectangle (cr, 0, 0, w, h); + cairo_clip (cr); + + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR); { + /* A two by two checkerboard with black, red and yellow + * cells. */ + cairo_set_source_rgb (cr, 1,0,0); + cairo_rectangle (cr, w/2, 0, w-w/2, h/2); + cairo_fill (cr); + cairo_set_source_rgb (cr, 1,1,0); + cairo_rectangle (cr, 0, h/2, w/2, h-h/2); + cairo_fill (cr); + } + pattern = cairo_pop_group (cr); + cairo_pattern_set_extend(pattern, extend); + + cairo_restore (cr); + + cairo_scale (cr, 0.5, 0.5); + cairo_set_source (cr, pattern); + cairo_paint (cr); + + cairo_pattern_destroy (pattern); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_repeat (cairo_t *cr, int w, int h) +{ + return draw_with_extend (cr, w, h, CAIRO_EXTEND_REPEAT); +} +static cairo_test_status_t +draw_none (cairo_t *cr, int w, int h) +{ + return draw_with_extend (cr, w, h, CAIRO_EXTEND_NONE); +} +static cairo_test_status_t +draw_reflect (cairo_t *cr, int w, int h) +{ + return draw_with_extend (cr, w, h, CAIRO_EXTEND_REFLECT); +} +static cairo_test_status_t +draw_pad (cairo_t *cr, int w, int h) +{ + return draw_with_extend (cr, w, h, CAIRO_EXTEND_PAD); +} + +CAIRO_TEST (surface_pattern_scale_down_extend_repeat, + "Test interaction of downscaling a surface pattern and extend-repeat", + "pattern, transform, extend", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw_repeat) +CAIRO_TEST (surface_pattern_scale_down_extend_none, + "Test interaction of downscaling a surface pattern and extend-none", + "pattern, transform, extend", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw_none) +CAIRO_TEST (surface_pattern_scale_down_extend_reflect, + "Test interaction of downscaling a surface pattern and extend-reflect", + "pattern, transform, extend", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw_reflect) +CAIRO_TEST (surface_pattern_scale_down_extend_pad, + "Test interaction of downscaling a surface pattern and extend-pad", + "pattern, transform, extend", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw_pad) |