diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/pthread-same-source.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/pthread-same-source.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/pthread-same-source.c b/libs/cairo-1.16.0/test/pthread-same-source.c new file mode 100644 index 0000000..2b26d18 --- /dev/null +++ b/libs/cairo-1.16.0/test/pthread-same-source.c @@ -0,0 +1,192 @@ +/* + * Copyright 2009 Benjamin Otte + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte <otte@gnome.org> + */ + +#define GENERATE_REFERENCE 0 + +#include "cairo-test.h" +#if !GENERATE_REFERENCE +#include <pthread.h> +#endif + +#define N_THREADS 8 + +#define WIDTH 64 +#define HEIGHT 8 + +typedef struct { + cairo_surface_t *target; + cairo_surface_t *source; + int id; +} thread_data_t; + +static void * +draw_thread (void *arg) +{ + thread_data_t *thread_data = arg; + cairo_surface_t *surface; + cairo_pattern_t *pattern; + cairo_matrix_t pattern_matrix = { 2, 0, 0, 2, 0, 0 }; + cairo_t *cr; + int x, y; + + cr = cairo_create (thread_data->target); + cairo_surface_destroy (thread_data->target); + + pattern = cairo_pattern_create_for_surface (thread_data->source); + cairo_surface_destroy (thread_data->source); + cairo_pattern_set_extend (pattern, thread_data->id % 4); + cairo_pattern_set_filter (pattern, thread_data->id >= 4 ? CAIRO_FILTER_BILINEAR : CAIRO_FILTER_NEAREST); + cairo_pattern_set_matrix (pattern, &pattern_matrix); + + for (y = 0; y < HEIGHT; y++) { + for (x = 0; x < WIDTH; x++) { + cairo_save (cr); + cairo_translate (cr, 4 * x + 1, 4 * y + 1); + cairo_rectangle (cr, 0, 0, 2, 2); + cairo_set_source (cr, pattern); + cairo_fill (cr); + cairo_restore (cr); + } + } + cairo_pattern_destroy (pattern); + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static cairo_surface_t * +create_source (cairo_surface_t *similar) +{ + cairo_surface_t *source; + cairo_t *cr; + double colors[4][3] = { + { 0.75, 0, 0 }, + { 0, 0.75, 0 }, + { 0, 0, 0.75 }, + { 0.75, 0.75, 0 } + }; + int i; + + source = cairo_surface_create_similar (similar, + CAIRO_CONTENT_COLOR_ALPHA, + 2, 2); + + cr = cairo_create (source); + cairo_surface_destroy (source); + + for (i = 0; i < 4; i++) { + cairo_set_source_rgb (cr, colors[i][0], colors[i][1], colors[i][2]); + cairo_rectangle (cr, i % 2, i / 2, 1, 1); + cairo_fill (cr); + } + + source = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return source; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ +#if !GENERATE_REFERENCE + pthread_t threads[N_THREADS]; +#endif + thread_data_t thread_data[N_THREADS]; + cairo_test_status_t test_status = CAIRO_TEST_SUCCESS; + cairo_surface_t *source; + cairo_status_t status; + int i; + + source = create_source (cairo_get_target (cr)); + status = cairo_surface_status (source); + if (status) { + cairo_surface_destroy (source); + return cairo_test_status_from_status (cairo_test_get_context (cr), + status); + } + + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + + for (i = 0; i < N_THREADS; i++) { + thread_data[i].target = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + 4 * WIDTH, 4 * HEIGHT); + thread_data[i].source = cairo_surface_reference (source); + thread_data[i].id = i; +#if !GENERATE_REFERENCE + if (pthread_create (&threads[i], NULL, draw_thread, &thread_data[i]) != 0) { + threads[i] = pthread_self (); /* to indicate error */ + cairo_surface_destroy (thread_data[i].target); + cairo_surface_destroy (thread_data[i].source); + test_status = CAIRO_TEST_FAILURE; + break; + } +#else + { + cairo_surface_t *surface = draw_thread(&thread_data[i]); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_paint (cr); + + cairo_translate (cr, 0, 4 * HEIGHT); + } +#endif + } + + cairo_surface_destroy (source); + +#if !GENERATE_REFERENCE + for (i = 0; i < N_THREADS; i++) { + void *surface; + + if (pthread_equal (threads[i], pthread_self ())) + break; + + if (pthread_join (threads[i], &surface) == 0) { + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_paint (cr); + + cairo_translate (cr, 0, 4 * HEIGHT); + } else { + test_status = CAIRO_TEST_FAILURE; + } + } +#endif + + return test_status; +} + +CAIRO_TEST (pthread_same_source, + "Use the same source for drawing in different threads", + "threads", /* keywords */ + NULL, /* requirements */ + 4 * WIDTH, 4 * HEIGHT * N_THREADS, + NULL, draw) |