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51047483f4
Jeff Muizeelar found another bug with clipping whereby the clip was been incorrectly discarded.
70 lines
2.4 KiB
C
70 lines
2.4 KiB
C
/*
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* Copyright © 2010 Mozilla Corporation
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* Copyright © 2010 Intel Corporation
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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: Chris Wilson <chris@chris-wilson.co.uk>
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*/
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#include "cairo-test.h"
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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cairo_surface_t *mask;
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cairo_t *cr2;
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cairo_set_source_rgb (cr, 0, 1, 0);
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cairo_paint (cr);
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/* clip twice, note that the intersection is smaller then the extents */
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cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
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cairo_rectangle (cr, 10, 10, 80, 80);
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cairo_rectangle (cr, 20, 20, 60, 60);
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cairo_clip (cr);
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cairo_rectangle (cr, 0, 40, 40, 30);
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cairo_clip (cr);
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/* and exercise the bug found by Jeff Muizelaar */
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mask = cairo_surface_create_similar (cairo_get_target (cr),
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CAIRO_CONTENT_ALPHA,
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width-20, height-20);
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cr2 = cairo_create (mask);
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cairo_surface_destroy (mask);
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cairo_set_source_rgba (cr2, 1, 1, 1, 1);
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cairo_paint (cr2);
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cairo_set_source_rgb (cr, 1, 0, 0);
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cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0);
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cairo_destroy (cr2);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (clip_twice_rectangle,
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"Tests clipping twice using rectangles",
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"clip", /* keywords */
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NULL, /* requirements */
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100, 100,
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NULL, draw)
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