/* * 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 <stdio.h> #include <stdlib.h> #include <string.h> #include <math.h> #include <cairo.h> #include "cairo-test.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)