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/*
* Copyright 2009 Benjamin Otte
*
* 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
* Benjamin Otte not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Benjamin Otte makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* BENJAMIN OTTE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL BENJAMIN OTTE 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: Benjamin Otte <otte@gnome.org>
*/
#include "cairo-test.h"
#include <pthread.h>
#define N_THREADS 8
#define WIDTH 64
#define HEIGHT 8
static void *
draw_thread (void *arg)
{
cairo_surface_t *surface = arg;
cairo_t *cr;
int x, y;
cr = cairo_create (surface);
cairo_surface_destroy (surface);
for (y = 0; y < HEIGHT; y++) {
for (x = 0; x < WIDTH; x++) {
cairo_rectangle (cr, x, y, 1, 1);
cairo_set_source_rgba (cr, 0, 0.75, 0.75, (double) x / WIDTH);
cairo_fill (cr);
}
}
surface = cairo_surface_reference (cairo_get_target (cr));
cairo_destroy (cr);
return surface;
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
pthread_t threads[N_THREADS];
cairo_test_status_t test_status = CAIRO_TEST_SUCCESS;
int i;
for (i = 0; i < N_THREADS; i++) {
cairo_surface_t *surface;
surface = cairo_surface_create_similar (cairo_get_target (cr),
CAIRO_CONTENT_COLOR,
WIDTH, HEIGHT);
if (pthread_create (&threads[i], NULL, draw_thread, surface) != 0) {
threads[i] = pthread_self ();
test_status = cairo_test_status_from_status (cairo_test_get_context (cr),
cairo_surface_status (surface));
cairo_surface_destroy (surface);
break;
}
}
for (i = 0; i < N_THREADS; i++) {
void *surface;
if (pthread_equal (threads[i], pthread_self ()))
break;
if (pthread_join (threads[i], &surface) != 0) {
test_status = CAIRO_TEST_FAILURE;
break;
}
cairo_set_source_surface (cr, surface, 0, 0);
cairo_surface_destroy (surface);
cairo_paint (cr);
cairo_translate (cr, 0, HEIGHT);
}
return test_status;
}
CAIRO_TEST (pthread_similar,
"Draw lots of 1x1 rectangles on similar surfaces in lots of threads",
"threads", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT * N_THREADS,
NULL, draw)
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