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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/.
177 lines
4.4 KiB
C
177 lines
4.4 KiB
C
/*
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* Copyright © 2007 Chris Wilson.
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Chris Wilson. Not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Chris Wilson makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Chris Wilson <chris at chris-wilson.co.uk>
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "cairo-test.h"
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#include <stdlib.h> /* drand48() */
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#define LOOPS 10
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#define NRAND 100
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#ifndef HAVE_DRAND48
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#define drand48() (rand () / (double) RAND_MAX)
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#endif
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static cairo_test_draw_function_t draw;
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static const cairo_test_t test = {
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"solid-pattern-cache-stress",
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"Stress the solid pattern cache and ensure it behaves",
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1, 1,
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draw
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};
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static cairo_t *
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_cairo_create_similar (cairo_t *cr, int width, int height)
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{
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cairo_surface_t *similar;
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similar = cairo_surface_create_similar (cairo_get_target (cr),
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cairo_surface_get_content (cairo_get_target (cr)),
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width, height);
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cr = cairo_create (similar);
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cairo_surface_destroy (similar);
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return cr;
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}
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static cairo_t *
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_cairo_create_image (cairo_t *cr, cairo_format_t format, int width, int height)
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{
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cairo_surface_t *image;
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image = cairo_image_surface_create (format, width, height);
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cr = cairo_create (image);
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cairo_surface_destroy (image);
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return cr;
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}
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static void
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_draw (cairo_t *cr,
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double red,
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double green,
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double blue)
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{
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cairo_text_extents_t extents;
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cairo_set_source_rgb (cr, red, green, blue);
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cairo_paint (cr);
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cairo_move_to (cr, 0, 0);
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cairo_line_to (cr, 1, 1);
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cairo_stroke (cr);
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cairo_mask (cr, cairo_get_source (cr));
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cairo_text_extents (cr, "cairo", &extents);
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cairo_move_to (cr,
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-extents.x_bearing - .5 * extents.width,
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-extents.y_bearing - .5 * extents.height);
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cairo_show_text (cr, "cairo");
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}
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static void
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use_similar (cairo_t *cr,
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double red,
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double green,
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double blue)
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{
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cr = _cairo_create_similar (cr, 1, 1);
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_draw (cr, red, green, blue);
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cairo_destroy (cr);
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}
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static void
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use_image (cairo_t *cr,
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cairo_format_t format,
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double red,
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double green,
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double blue)
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{
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cr = _cairo_create_image (cr, format, 1, 1);
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_draw (cr, red, green, blue);
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cairo_destroy (cr);
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}
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static void
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use_solid (cairo_t *cr,
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double red,
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double green,
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double blue)
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{
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/* mix in dissimilar solids */
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use_image (cr, CAIRO_FORMAT_A1, red, green, blue);
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use_image (cr, CAIRO_FORMAT_A8, red, green, blue);
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use_image (cr, CAIRO_FORMAT_RGB24, red, green, blue);
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use_image (cr, CAIRO_FORMAT_ARGB32, red, green, blue);
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use_similar (cr, red, green, blue);
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_draw (cr, red, green, blue);
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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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int loop;
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int i;
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for (loop = 0; loop < LOOPS; loop++) {
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for (i = 0; i < LOOPS; i++) {
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use_solid (cr, 0.0, 0.0, 0.0); /* black */
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use_solid (cr, 1.0, 0.0, 0.0); /* red */
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use_solid (cr, 0.0, 1.0, 0.0); /* green */
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use_solid (cr, 1.0, 1.0, 0.0); /* yellow */
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use_solid (cr, 0.0, 0.0, 1.0); /* blue */
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use_solid (cr, 1.0, 0.0, 1.0); /* magenta */
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use_solid (cr, 0.0, 1.0, 1.0); /* cyan */
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use_solid (cr, 1.0, 1.0, 1.0); /* white */
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}
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for (i = 0; i < NRAND; i++)
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use_solid (cr, drand48 (), drand48 (), drand48 ());
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}
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/* stress test only, so clear the surface before comparing */
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cairo_set_source_rgb (cr, 0, 0, 1);
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cairo_paint (cr);
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return CAIRO_TEST_SUCCESS;
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}
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int
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main (void)
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{
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return cairo_test (&test);
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}
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