/* * 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; double source_width = 32767.0; 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)