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5fa49462be
This test creates a similar surface using cairo_push_group () and assumes its size will be w x h. This is not true when testing similar surfaces with "cairo-test-suite -a", because they are bigger than the actual ROI, which corresponds to the rectangle (0,0) - (w,h). Clipping to the ROI guarantees that the surface created by cairo_push_group () always has the same size. Fixes surface-pattern-scale-down-extend.
120 lines
4.2 KiB
C
120 lines
4.2 KiB
C
/*
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* Copyright © 2010 M Joonas Pihlaja
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Author: M Joonas Pihlaja <jpihlaja@cc.helsinki.fi>
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*/
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#include "cairo-test.h"
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/* Test that we can simultaneously downscale and extend a surface
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* pattern. Reported by Franz Schmid to the cairo mailing list as a
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* regression in 1.9.6:
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*
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* http://lists.cairographics.org/archives/cairo/2010-February/019492.html
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*/
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static cairo_test_status_t
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draw_with_extend (cairo_t *cr, int w, int h, cairo_extend_t extend)
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{
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cairo_pattern_t *pattern;
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cairo_set_source_rgb (cr, 1,1,1);
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cairo_paint (cr);
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cairo_save (cr);
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/* When the destination surface is created by cairo-test-suite to
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* test device-offset, it is bigger than w x h. This test expects
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* the group to have a size which is exactly w x h, so it must
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* clip to the this rectangle to guarantee that the group will
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* have the correct size.
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*/
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cairo_rectangle (cr, 0, 0, w, h);
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cairo_clip (cr);
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cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR); {
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/* A two by two checkerboard with black, red and yellow
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* cells. */
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cairo_set_source_rgb (cr, 1,0,0);
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cairo_rectangle (cr, w/2, 0, w-w/2, h/2);
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cairo_fill (cr);
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cairo_set_source_rgb (cr, 1,1,0);
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cairo_rectangle (cr, 0, h/2, w/2, h-h/2);
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cairo_fill (cr);
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}
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pattern = cairo_pop_group (cr);
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cairo_pattern_set_extend(pattern, extend);
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cairo_restore (cr);
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cairo_scale (cr, 0.5, 0.5);
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cairo_set_source (cr, pattern);
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cairo_paint (cr);
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cairo_pattern_destroy (pattern);
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return CAIRO_TEST_SUCCESS;
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}
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static cairo_test_status_t
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draw_repeat (cairo_t *cr, int w, int h)
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{
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return draw_with_extend (cr, w, h, CAIRO_EXTEND_REPEAT);
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}
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static cairo_test_status_t
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draw_none (cairo_t *cr, int w, int h)
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{
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return draw_with_extend (cr, w, h, CAIRO_EXTEND_NONE);
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}
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static cairo_test_status_t
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draw_reflect (cairo_t *cr, int w, int h)
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{
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return draw_with_extend (cr, w, h, CAIRO_EXTEND_REFLECT);
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}
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static cairo_test_status_t
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draw_pad (cairo_t *cr, int w, int h)
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{
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return draw_with_extend (cr, w, h, CAIRO_EXTEND_PAD);
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}
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CAIRO_TEST (surface_pattern_scale_down_extend_repeat,
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"Test interaction of downscaling a surface pattern and extend-repeat",
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"pattern, transform, extend", /* keywords */
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NULL, /* requirements */
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100, 100,
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NULL, draw_repeat)
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CAIRO_TEST (surface_pattern_scale_down_extend_none,
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"Test interaction of downscaling a surface pattern and extend-none",
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"pattern, transform, extend", /* keywords */
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NULL, /* requirements */
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100, 100,
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NULL, draw_none)
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CAIRO_TEST (surface_pattern_scale_down_extend_reflect,
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"Test interaction of downscaling a surface pattern and extend-reflect",
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"pattern, transform, extend", /* keywords */
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NULL, /* requirements */
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100, 100,
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NULL, draw_reflect)
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CAIRO_TEST (surface_pattern_scale_down_extend_pad,
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"Test interaction of downscaling a surface pattern and extend-pad",
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"pattern, transform, extend", /* keywords */
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NULL, /* requirements */
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100, 100,
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NULL, draw_pad)
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