mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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e1353f3b85
This makes the results of the test suite more stable across different environments, because it does not rely anymore on CAIRO_FONT_FAMILY_DEFAULT (which on Windows is "Arial", on Mac "Helvetica"). This change should not affect Linux environments, assuming that the default font is already set to "DejaVu Sans".
142 lines
4 KiB
C
142 lines
4 KiB
C
/*
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* Copyright © 2005 Red Hat, Inc.
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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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* Red Hat, Inc. 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. Red Hat, Inc. 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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* RED HAT, INC. 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 RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org>
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*/
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/* Test case for bug #4299:
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Assertion fails in "cairo-font.c" when using multithreads
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https://bugs.freedesktop.org/show_bug.cgi?id=4299
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*/
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#include "cairo-test.h"
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#include <string.h>
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#include <stdlib.h>
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#include <pthread.h>
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#define N_THREADS 8
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#define NUM_ITERATIONS 40
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#define WIDTH 400
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#define HEIGHT 42
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typedef struct {
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cairo_surface_t *target;
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int id;
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} thread_data_t;
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static void *
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draw_thread (void *arg)
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{
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const char *text = "Hello world. ";
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thread_data_t *thread_data = arg;
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cairo_surface_t *surface;
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cairo_font_extents_t extents;
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cairo_t *cr;
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int i;
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cr = cairo_create (thread_data->target);
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cairo_surface_destroy (thread_data->target);
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_paint (cr);
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif",
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CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_NORMAL);
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cairo_set_font_size (cr, NUM_ITERATIONS);
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cairo_font_extents (cr, &extents);
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cairo_move_to (cr, 1, HEIGHT - extents.descent - 1);
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for (i = 0; i < NUM_ITERATIONS; i++) {
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char buf[2];
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cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif",
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CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_NORMAL);
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cairo_set_font_size (cr, i);
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buf[0] = text[i%strlen(text)];
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buf[1] = '\0';
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cairo_show_text (cr, buf);
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}
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surface = cairo_surface_reference (cairo_get_target (cr));
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cairo_destroy (cr);
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return surface;
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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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pthread_t threads[N_THREADS];
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thread_data_t thread_data[N_THREADS];
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cairo_test_status_t test_status = CAIRO_TEST_SUCCESS;
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int i;
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for (i = 0; i < N_THREADS; i++) {
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thread_data[i].target = 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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thread_data[i].id = i;
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if (pthread_create (&threads[i], NULL, draw_thread, &thread_data[i]) != 0) {
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threads[i] = pthread_self (); /* to indicate error */
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cairo_surface_destroy (thread_data[i].target);
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test_status = CAIRO_TEST_FAILURE;
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break;
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}
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}
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cairo_set_source_rgb (cr, 0.5, 0.5, 0.5);
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cairo_paint (cr);
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for (i = 0; i < N_THREADS; i++) {
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void *surface;
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if (pthread_equal (threads[i], pthread_self ()))
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break;
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if (pthread_join (threads[i], &surface) == 0) {
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cairo_set_source_surface (cr, surface, 0, 0);
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cairo_surface_destroy (surface);
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cairo_paint (cr);
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cairo_translate (cr, 0, HEIGHT);
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} else {
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test_status = CAIRO_TEST_FAILURE;
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}
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}
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return test_status;
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}
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CAIRO_TEST (pthread_show_text,
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"Concurrent stress test of the cairo_show_text().",
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"thread, text", /* keywords */
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NULL, /* requirements */
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WIDTH, HEIGHT * N_THREADS,
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NULL, draw)
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