blob: 98db4a2c772180371803d6038a978f677682e391 [file] [log] [blame]
/*
* Copyright (c) 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"
#define SIZE 120
static void L(cairo_t *cr, int w, int h)
{
cairo_move_to (cr, 0, 0);
cairo_line_to (cr, 0, h);
cairo_line_to (cr, w, h);
cairo_line_to (cr, w, h/2);
cairo_line_to (cr, w/2, h/2);
cairo_line_to (cr, w/2, 0);
cairo_close_path (cr);
}
static void LL(cairo_t *cr, int w, int h)
{
cairo_save (cr);
/* aligned */
cairo_rectangle (cr, 0, 0, w, h);
cairo_clip (cr);
L (cr, w, h);
cairo_clip (cr);
cairo_paint (cr);
cairo_reset_clip (cr);
/* unaligned */
cairo_translate (cr, w+.25, .25);
cairo_rectangle (cr, 0, 0, w, h);
cairo_clip (cr);
L (cr, w, h);
cairo_clip (cr);
cairo_paint (cr);
cairo_reset_clip (cr);
cairo_restore (cr);
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
int w = SIZE/2, h = SIZE/2;
cairo_paint (cr); /* opaque background */
cairo_set_source_rgb (cr, 1, 0, 0);
LL (cr, w, h);
cairo_translate (cr, 0, h);
cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
cairo_set_source_rgb (cr, 0, 0, 1);
LL (cr, w, h);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (clip_rectilinear,
"Test handling of rectilinear clipping",
"clip", /* keywords */
NULL, /* requirements */
SIZE, SIZE,
NULL, draw)