/* * Copyright © 2007 Red Hat, Inc. * * 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: Carl Worth <cworth@cworth.org> */ #include "cairo-test.h" /* This is a test case for the following bug: * * Crash in cairo_stroke_extents whe line width is 0 and line cap is ROUND * (_cairo_pen_find_active_cw_vertex_index) * https://bugs.freedesktop.org/show_bug.cgi?id=10231 */ static cairo_test_status_t draw (cairo_t *cr, int width, int height) { double x1, y1, x2, y2; cairo_move_to (cr, 0.0, 0.0); cairo_line_to (cr, 100.0, 100.0); cairo_set_line_width (cr, 0.0); cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); cairo_stroke_extents (cr, &x1, &y1, &x2, &y2); cairo_in_stroke (cr, 50, 50); cairo_stroke_preserve (cr); cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); cairo_stroke_extents (cr, &x1, &y1, &x2, &y2); cairo_in_stroke (cr, 50, 50); cairo_stroke_preserve (cr); cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); cairo_stroke_extents (cr, &x1, &y1, &x2, &y2); cairo_in_stroke (cr, 50, 50); cairo_stroke (cr); return CAIRO_TEST_SUCCESS; } CAIRO_TEST (line_width_zero, "Test all stroke operations and all cap,join styles with line width of zero", "stroke", /* keywords */ NULL, /* requirements */ 0, 0, NULL, draw)