| /* |
| * Copyright © 2009 Joonas Pihlaja |
| * |
| * 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 the copyright holders not be used in advertising or |
| * publicity pertaining to distribution of the software without specific, |
| * written prior permission. The copyright holders make no representations |
| * about the suitability of this software for any purpose. It is provided "as |
| * is" without express or implied warranty. |
| * |
| * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| * EVENT SHALL THE COPYRIGHT HOLDERS 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. |
| */ |
| |
| #include "cairo-test.h" |
| |
| /* This test attempts to trigger failures in those clone_similar |
| * backend methods that have size restrictions. */ |
| |
| static cairo_surface_t * |
| create_large_source (int width, int height) |
| { |
| cairo_surface_t *surface; |
| cairo_t *cr; |
| |
| surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height); |
| cr = cairo_create (surface); |
| cairo_surface_destroy (surface); |
| |
| cairo_set_source_rgb (cr, 1,0,0); /* red */ |
| cairo_paint (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) |
| { |
| cairo_surface_t *source; |
| /* Since 1cc750ed92a936d84b47cac696aaffd226e1c02e pixman will not |
| * paint on the source surface if source_width > 30582. */ |
| double source_width = 30000.0; |
| |
| cairo_set_source_rgb (cr, 1,1,1); |
| cairo_paint (cr); |
| |
| /* Create an excessively wide source image, all red. */ |
| source = create_large_source (source_width, height); |
| |
| /* Set a transform so that the source is scaled down to fit in the |
| * destination horizontally and then paint the entire source to |
| * the context. */ |
| cairo_scale (cr, width/source_width, 1.0); |
| cairo_set_source_surface (cr, source, 0, 0); |
| cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); |
| cairo_paint (cr); |
| |
| cairo_surface_destroy (source); |
| |
| return CAIRO_TEST_SUCCESS; |
| } |
| |
| CAIRO_TEST (large_source_roi, |
| "Uses a all of a large source image.", |
| "stress, source", /* keywords */ |
| NULL, /* requirements */ |
| 7, 7, |
| NULL, draw) |