mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2025-12-25 00:10:10 +01:00
436c0c8be2
In order to run under memfault, the framework is first extended to handle running concurrent tests - i.e. multi-threading. (Not that this is a requirement for memfault, instead it shares a common goal of storing per-test data). To that end all the global data is moved into a per-test context and the targets are adjusted to avoid overlap on shared, global resources (such as output files and frame buffers). In order to preserve the simplicity of the standard draw routines, the context is not passed explicitly as a parameter to the routines, but is instead attached to the cairo_t via the user_data. For the masochist, to enable the tests to be run across multiple threads simply set the environment variable CAIRO_TEST_NUM_THREADS to the desired number. In the long run, we can hope the need for memfault (runtime testing of error paths) will be mitigated by static analysis. A promising candidate for this task would appear to be http://hal.cs.berkeley.edu/cil/.
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/*
|
|
* Copyright © 2006 Red Hat, Inc.
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software
|
|
* and its documentation for any purpose is hereby granted without
|
|
* fee, provided that the above copyright notice appear in all copies
|
|
* and that both that copyright notice and this permission notice
|
|
* appear in supporting documentation, and that the name of the
|
|
* copyright holders not be used in advertising or publicity
|
|
* pertaining to distribution of the software without specific,
|
|
* written prior permission. The copyright holders make no
|
|
* representations about the suitability of this software for any
|
|
* purpose. It is provided "as is" without express or implied
|
|
* warranty.
|
|
*
|
|
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
|
|
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
|
|
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
|
|
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
|
|
* SOFTWARE.
|
|
*
|
|
* Author: Carl D. Worth <cworth@cworth.org>
|
|
*/
|
|
|
|
/* Test case for bug #8379:
|
|
*
|
|
* infinite loop when stroking
|
|
* https://bugs.freedesktop.org/show_bug.cgi?id=8379
|
|
*/
|
|
|
|
#include "cairo-test.h"
|
|
|
|
static cairo_test_draw_function_t draw;
|
|
|
|
static const cairo_test_t test = {
|
|
"infinite-join",
|
|
"Test case for infinite loop when stroking with round joins",
|
|
8, 8,
|
|
draw
|
|
};
|
|
|
|
static cairo_test_status_t
|
|
draw (cairo_t *cr, int width, int height)
|
|
{
|
|
/* Paint white, then draw in black. */
|
|
cairo_set_source_rgb (cr, 1, 1, 1); /* white */
|
|
cairo_paint (cr);
|
|
cairo_set_source_rgb (cr, 0, 0, 0); /* black */
|
|
|
|
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
|
|
|
|
/* scaling 2 times causes a slight rounding error in the ctm.
|
|
* Without that, the bug doesn't happen. */
|
|
cairo_scale (cr, 20 / 100., 20 / 100.);
|
|
cairo_scale (cr, 1. / 20, 1. / 20);
|
|
|
|
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
|
|
cairo_set_line_width (cr, 20);
|
|
|
|
cairo_translate (cr, -18300, -13200);
|
|
|
|
cairo_new_path (cr);
|
|
cairo_move_to (cr, 18928, 13843);
|
|
cairo_line_to (cr, 18500, 13843);
|
|
cairo_line_to (cr, 18500, 13400);
|
|
cairo_line_to (cr, 18928, 13400);
|
|
cairo_line_to (cr, 18928, 13843);
|
|
cairo_stroke (cr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
return cairo_test (&test);
|
|
}
|