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3bf06c3366
cairo_get_target() returns the original surface passed to cairo_create(), and not the current destination as required when testing drawing to the same surface using multiple contexts. For completeness we also use the group target when creating similar surfaces within the tests (to check that similar surfaces of similar surfaces also work).
101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
/*
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* Copyright © 2007 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Author: Kristian Høgsberg <krh@redhat.com>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <cairo.h>
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#include "cairo-test.h"
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#define WIDTH 32
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#define HEIGHT WIDTH
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#define IMAGE_WIDTH (3 * WIDTH)
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#define IMAGE_HEIGHT IMAGE_WIDTH
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static cairo_test_draw_function_t draw;
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cairo_test_t test = {
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"pixman-rotate",
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"Exposes pixman off-by-one error when rotating",
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IMAGE_WIDTH, IMAGE_HEIGHT,
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draw
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};
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/* Draw the word cairo at NUM_TEXT different angles */
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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cairo_surface_t *stamp;
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cairo_t *cr2;
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stamp = cairo_surface_create_similar (cairo_get_group_target (cr),
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CAIRO_CONTENT_COLOR_ALPHA,
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WIDTH, HEIGHT);
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cr2 = cairo_create (stamp);
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{
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cairo_new_path (cr2);
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cairo_rectangle (cr2, WIDTH / 4, HEIGHT / 4, WIDTH / 2, HEIGHT / 2);
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cairo_set_source_rgba (cr2, 1, 0, 0, 0.8);
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cairo_fill (cr2);
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cairo_rectangle (cr2, 0, 0, WIDTH, HEIGHT);
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cairo_set_line_width (cr2, 2);
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cairo_set_source_rgb (cr2, 0, 0, 0);
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cairo_stroke (cr2);
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}
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cairo_destroy (cr2);
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/* Draw a translucent rectangle for reference where the rotated
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* image should be. */
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cairo_new_path (cr);
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cairo_rectangle (cr, WIDTH, HEIGHT, WIDTH, HEIGHT);
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cairo_set_source_rgba (cr, 1, 1, 0, 0.3);
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cairo_fill (cr);
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#if 1 /* Set to 0 to generate reference image */
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cairo_translate (cr, 2 * WIDTH, 2 * HEIGHT);
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cairo_rotate (cr, M_PI);
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#else
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cairo_translate (cr, WIDTH, HEIGHT);
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#endif
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cairo_set_source_surface (cr, stamp, 0, 0);
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cairo_paint (cr);
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cairo_surface_destroy (stamp);
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return CAIRO_TEST_SUCCESS;
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}
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int
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main (void)
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{
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return cairo_test (&test);
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}
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