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65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
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/*
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* Copyright © 2011 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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/*
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* The mystery of the disappearing box, similar to big-little-box.
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*
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* The issue is that we failed to tighten the initial approximated bounds
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* after tessellating the path.
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*/
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#include "cairo-test.h"
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#define SIZE 60
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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_set_source_rgb (cr, 1, 0, 1);
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cairo_paint (cr);
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/* Set an unbounded operator so that we can see how accurate the bounded
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* extents were.
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*/
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cairo_set_operator (cr, CAIRO_OPERATOR_IN);
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cairo_set_source_rgb (cr, 1, 1, 1);
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/* Wind several boxes together that reduce to nothing */
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cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
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cairo_rectangle (cr, 0, 0, SIZE, SIZE);
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cairo_rectangle (cr, 0, 0, SIZE, SIZE);
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cairo_fill (cr);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (big_empty_box,
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"Tests that we tighten the bounds after tessellation.",
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"fill", /* keywords */
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NULL, /* requirements */
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SIZE, SIZE,
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NULL, draw)
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