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/*
* Copyright © 2011 Intel Corporation
*
* 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: Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "cairo-test.h"
/* The goal is exercise a bug that existed in the xlib backend, where
* it assumed the rectangles generated by rectangular tessallator had
* any sorting guarantees.
*/
#define WIDTH 300
#define HEIGHT 300
static cairo_surface_t *
create_source (cairo_surface_t *target)
{
cairo_surface_t *surface;
cairo_t *cr;
surface = cairo_surface_create_similar (target,
CAIRO_CONTENT_COLOR,
WIDTH, HEIGHT);
cr = cairo_create (surface);
cairo_surface_destroy (surface);
cairo_set_source_rgb (cr, 1, 1, 1);
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 *white;
int x;
/* black background */
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_paint (cr);
/* white rectangles */
white = create_source (cairo_get_target (cr));
cairo_set_source_surface (cr, white, 0, 0);
cairo_surface_destroy (white);
/* blit a set of rectangles that the rectangular tessellator
* will not emit sorted. */
for (x = 0; x < WIDTH - 10; x += 15)
cairo_rectangle (cr, x, x, 10, HEIGHT - 2*x);
cairo_fill (cr);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (copy_disjoint,
"Tests copying unsorted rectangles.",
"fill", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, draw)
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