| /* |
| * Copyright © 2008 Chris Wilson |
| * |
| * 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 |
| * Chris Wilson not be used in advertising or publicity pertaining to |
| * distribution of the software without specific, written prior |
| * permission. Chris Wilson makes no representations about the |
| * suitability of this software for any purpose. It is provided "as |
| * is" without express or implied warranty. |
| * |
| * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS |
| * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS, IN NO EVENT SHALL CHRIS WILSON 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: Chris Wilson <chris@chris-wilson.co.uk> |
| */ |
| |
| #include "cairo-test.h" |
| |
| static cairo_surface_t *create_source_surface (int size); |
| |
| /* We use a relatively large source to exercise bug: |
| * Bug 7360 painting huge surfaces fails |
| * [https://bugs.freedesktop.org/show_bug.cgi?id=7360] |
| * but still keep the resultant image small for reasonably quick checking. |
| */ |
| #define SOURCE_SIZE 2000 |
| #define INTER_SIZE 512 |
| #define SIZE 96 |
| |
| static void |
| draw_pattern (cairo_surface_t **surface_inout, int surface_size) |
| { |
| cairo_t *cr; |
| int mid = surface_size/2; |
| |
| cr = cairo_create (*surface_inout); |
| cairo_surface_destroy (*surface_inout); |
| |
| cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); |
| cairo_set_source_rgba (cr, 0, 0, 0, 0); |
| cairo_paint (cr); |
| |
| cairo_rectangle (cr, 0, 0, surface_size, surface_size); |
| cairo_rectangle (cr, mid - SIZE/4, mid + SIZE/4, SIZE/2, -SIZE/2); |
| cairo_clip (cr); |
| |
| /* outside squares -> opaque */ |
| cairo_set_source_rgb (cr, 1, 1, 1); |
| cairo_rectangle (cr, |
| 0, 0, |
| surface_size / 2, surface_size / 2); |
| cairo_fill (cr); |
| cairo_set_source_rgb (cr, 1, 0, 0); |
| cairo_rectangle (cr, |
| surface_size / 2, 0, |
| surface_size / 2, surface_size / 2); |
| cairo_fill (cr); |
| cairo_set_source_rgb (cr, 0, 1, 0); |
| cairo_rectangle (cr, |
| 0, surface_size / 2, |
| surface_size / 2, surface_size / 2); |
| cairo_fill (cr); |
| cairo_set_source_rgb (cr, 0, 0, 1); |
| cairo_rectangle (cr, |
| surface_size / 2, surface_size / 2, |
| surface_size / 2, surface_size / 2); |
| cairo_fill (cr); |
| |
| cairo_reset_clip (cr); |
| cairo_rectangle (cr, mid - SIZE/4, mid - SIZE/4, SIZE/2, SIZE/2); |
| cairo_clip (cr); |
| |
| /* inside squares -> translucent */ |
| cairo_set_source_rgba (cr, 0, 0, 1, .5); |
| cairo_rectangle (cr, |
| 0, 0, |
| surface_size / 2, surface_size / 2); |
| cairo_fill (cr); |
| cairo_set_source_rgba (cr, 0, 1, 0, .5); |
| cairo_rectangle (cr, |
| surface_size / 2, 0, |
| surface_size / 2, surface_size / 2); |
| cairo_fill (cr); |
| cairo_set_source_rgba (cr, 1, 0, 0, .5); |
| cairo_rectangle (cr, |
| 0, surface_size / 2, |
| surface_size / 2, surface_size / 2); |
| cairo_fill (cr); |
| cairo_set_source_rgba (cr, 1, 1, 1, .5); |
| cairo_rectangle (cr, |
| surface_size / 2, surface_size / 2, |
| surface_size / 2, surface_size / 2); |
| cairo_fill (cr); |
| |
| |
| *surface_inout = cairo_surface_reference (cairo_get_target (cr)); |
| cairo_destroy (cr); |
| } |
| |
| static cairo_test_status_t |
| draw (cairo_t *cr, int width, int height) |
| { |
| cairo_surface_t *surface; |
| cairo_surface_t *similar; |
| cairo_status_t status; |
| cairo_t *cr2; |
| |
| cairo_set_source_rgb (cr, 0, 0, 0); |
| cairo_paint (cr); |
| |
| surface = create_source_surface (SOURCE_SIZE); |
| if (surface == NULL) /* can't create the source so skip the test */ |
| return CAIRO_TEST_UNTESTED; |
| |
| draw_pattern (&surface, SOURCE_SIZE); |
| |
| /* copy a subregion to a smaller intermediate surface */ |
| similar = cairo_surface_create_similar (surface, |
| CAIRO_CONTENT_COLOR_ALPHA, |
| INTER_SIZE, INTER_SIZE); |
| cr2 = cairo_create (similar); |
| cairo_surface_destroy (similar); |
| cairo_set_source_surface (cr2, surface, |
| (INTER_SIZE - SOURCE_SIZE)/2, |
| (INTER_SIZE - SOURCE_SIZE)/2); |
| cairo_paint (cr2); |
| |
| /* and then paint onto a small surface for checking */ |
| cairo_set_source_surface (cr, cairo_get_target (cr2), |
| (width - INTER_SIZE)/2, |
| (height - INTER_SIZE)/2); |
| cairo_destroy (cr2); |
| cairo_rectangle (cr, 16, 16, 64, 64); |
| cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); |
| cairo_fill (cr); |
| |
| /* destroy the surface last, as this triggers XCloseDisplay */ |
| cairo_surface_finish (surface); |
| status = cairo_surface_status (surface); |
| cairo_surface_destroy (surface); |
| |
| return cairo_test_status_from_status (cairo_test_get_context (cr), |
| status); |
| } |
| |
| static cairo_test_status_t |
| preamble (cairo_test_context_t *ctx) |
| { |
| cairo_surface_t *surface; |
| cairo_status_t status; |
| |
| surface = create_source_surface (SOURCE_SIZE); |
| if (surface == NULL) /* can't create the source so skip the test */ |
| return CAIRO_TEST_UNTESTED; |
| |
| cairo_surface_finish (surface); |
| status = cairo_surface_status (surface); |
| cairo_surface_destroy (surface); |
| |
| return cairo_test_status_from_status (ctx, status); |
| } |