mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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7ad3aebbe6
This test called cairo_save () without restoring again. Normally, this doesn't
cause a problem. However, when cairo-test-suite is called with "-a", it also
executes the tests on a similar surface. This then caused
cairo_pop_group_to_source to be called on a cairo_save state which causes a
CAIRO_STATUS_INVALID_RESTORE since commit 5d95ae924e.
Signed-off-by: Uli Schlachter <psychon@znc.in>
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
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/*
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* Copyright 2010 Andrea Canciani
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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: Andrea Canciani <ranma42@gmail.com>
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*/
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#include "cairo-test.h"
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#define SIZE 32
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/*
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When cairo_arc is used to draw an arc of more than 2pi radians
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(i.e. a circle "looping over itself"), various different behaviors
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are possible:
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- draw exactly a circle (an arc of 2pi radians)
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- draw an arc such that the current point is the expected one and
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that does at least a complete circle (an arc of [2pi, 4pi)
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radians)
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- draw an arc with the original number of loops
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This test produces different results for each of these three cases.
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*/
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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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double dashes[] = { 0.3, 7 };
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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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cairo_translate (cr, SIZE * .5, SIZE * .5);
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cairo_scale (cr, SIZE * 3 / 8., SIZE * 3 / 8.);
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cairo_arc (cr, 0, 0, 1, 0, 11 * M_PI);
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cairo_set_line_width (cr, 8. / SIZE);
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_set_dash (cr, dashes, 2, 0);
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cairo_stroke (cr);
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cairo_restore (cr);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (arc_looping_dash,
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"Test cairo_arc for angles describing more than a complete circle",
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"arc", /* keywords */
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NULL, /* requirements */
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SIZE, SIZE,
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NULL, draw)
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