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/*
* 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);
}
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