mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2026-05-22 09:08:13 +02:00
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/.
126 lines
3.8 KiB
C
126 lines
3.8 KiB
C
/*
|
|
* Copyright © 2006 Jeff Muizelaar
|
|
*
|
|
* 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
|
|
* Jeff Muizelaar not be used in advertising or publicity pertaining to
|
|
* distribution of the software without specific, written prior
|
|
* permission. Jeff Muizelaar makes no representations about the
|
|
* suitability of this software for any purpose. It is provided "as
|
|
* is" without express or implied warranty.
|
|
*
|
|
* JEFF MUIZELAAR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
|
|
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS, IN NO EVENT SHALL JEFF MUIZELAAR 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: Jeff Muizelaar <jeff@infidigm.net>
|
|
*/
|
|
|
|
#include "cairo-test.h"
|
|
|
|
#define PAD 3.0
|
|
#define LINE_WIDTH 6.0
|
|
|
|
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
|
|
|
|
static cairo_test_draw_function_t draw;
|
|
|
|
static const cairo_test_t test = {
|
|
"degenerate-path",
|
|
"Tests the behaviour of degenerate paths with different cap types",
|
|
3*(PAD+LINE_WIDTH+PAD), 8*(LINE_WIDTH+PAD) + PAD,
|
|
draw
|
|
};
|
|
|
|
static cairo_test_status_t
|
|
draw (cairo_t *cr, int width, int height)
|
|
{
|
|
const cairo_line_cap_t cap[] = { CAIRO_LINE_CAP_ROUND, CAIRO_LINE_CAP_SQUARE, CAIRO_LINE_CAP_BUTT };
|
|
size_t i;
|
|
double dash[] = {2, 2};
|
|
double dash_long[] = {6, 6};
|
|
|
|
cairo_set_source_rgb (cr, 1, 0, 0);
|
|
|
|
for (i=0; i<ARRAY_SIZE(cap); i++) {
|
|
cairo_save (cr);
|
|
|
|
cairo_set_line_cap (cr, cap[i]);
|
|
|
|
/* simple degenerate paths */
|
|
cairo_set_line_width (cr, LINE_WIDTH);
|
|
cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_stroke (cr);
|
|
|
|
cairo_translate (cr, 0, 3*PAD);
|
|
cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_close_path (cr);
|
|
cairo_stroke (cr);
|
|
|
|
/* degenerate paths starting with dash on */
|
|
cairo_set_dash (cr, dash, 2, 0.);
|
|
|
|
cairo_translate (cr, 0, 3*PAD);
|
|
cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_stroke (cr);
|
|
|
|
cairo_translate (cr, 0, 3*PAD);
|
|
cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_close_path (cr);
|
|
cairo_stroke (cr);
|
|
|
|
/* degenerate paths starting with dash off */
|
|
/* these should not draw anything */
|
|
cairo_set_dash (cr, dash, 2, 2.);
|
|
|
|
cairo_translate (cr, 0, 3*PAD);
|
|
cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_stroke (cr);
|
|
|
|
cairo_translate (cr, 0, 3*PAD);
|
|
cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_close_path (cr);
|
|
cairo_stroke (cr);
|
|
|
|
/* this should draw a single degenerate sub-path
|
|
* at the end of the path */
|
|
cairo_set_dash (cr, dash_long, 2, 6.);
|
|
|
|
cairo_translate (cr, 0, 3*PAD);
|
|
cairo_move_to (cr, LINE_WIDTH + 6.0, LINE_WIDTH);
|
|
cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_stroke (cr);
|
|
|
|
/* this should draw a single degenerate sub-path
|
|
* at the end of the path. The difference between this
|
|
* and the above is that this ends with a degenerate sub-path*/
|
|
cairo_set_dash (cr, dash_long, 2, 6.);
|
|
|
|
cairo_translate (cr, 0, 3*PAD);
|
|
cairo_move_to (cr, LINE_WIDTH + 6.0, LINE_WIDTH);
|
|
cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH);
|
|
cairo_stroke (cr);
|
|
|
|
cairo_restore (cr);
|
|
|
|
cairo_translate (cr, PAD+LINE_WIDTH+PAD, 0);
|
|
}
|
|
return CAIRO_TEST_SUCCESS;
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
return cairo_test (&test);
|
|
}
|