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/*
* Copyright © 2007 Red Hat, Inc.
*
* 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: Kristian Høgsberg <krh@redhat.com>
*/
#include "cairo-test.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <cairo.h>
#define WIDTH 32
#define HEIGHT WIDTH
#define IMAGE_WIDTH (3 * WIDTH)
#define IMAGE_HEIGHT IMAGE_WIDTH
/* Draw the word cairo at NUM_TEXT different angles */
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_surface_t *stamp;
cairo_t *cr2;
/* Draw a translucent rectangle for reference where the rotated
* image should be. */
cairo_new_path (cr);
cairo_rectangle (cr, WIDTH, HEIGHT, WIDTH, HEIGHT);
cairo_set_source_rgba (cr, 1, 1, 0, 0.3);
cairo_fill (cr);
#if 1 /* Set to 0 to generate reference image */
cairo_translate (cr, 2 * WIDTH, 2 * HEIGHT);
cairo_rotate (cr, M_PI);
#else
cairo_translate (cr, WIDTH, HEIGHT);
#endif
stamp = cairo_surface_create_similar (cairo_get_group_target (cr),
CAIRO_CONTENT_COLOR_ALPHA,
WIDTH, HEIGHT);
cr2 = cairo_create (stamp);
cairo_surface_destroy (stamp);
{
cairo_new_path (cr2);
cairo_rectangle (cr2, WIDTH / 4, HEIGHT / 4, WIDTH / 2, HEIGHT / 2);
cairo_set_source_rgba (cr2, 1, 0, 0, 0.8);
cairo_fill (cr2);
cairo_rectangle (cr2, 0, 0, WIDTH, HEIGHT);
cairo_set_line_width (cr2, 2);
cairo_set_source_rgb (cr2, 0, 0, 0);
cairo_stroke (cr2);
}
cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0);
cairo_destroy (cr2);
cairo_paint (cr);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (pixman_rotate,
"Exposes pixman off-by-one error when rotating",
"image, transform", /* keywords */
NULL, /* requirements */
IMAGE_WIDTH, IMAGE_HEIGHT,
NULL, draw)