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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).
90 lines
2.8 KiB
C
90 lines
2.8 KiB
C
/*
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* Copyright © 2005 Mozilla Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Mozilla Corporation not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Mozilla Corporation makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Vladimir Vukicevic <vladimir@pobox.com>
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*/
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#include <math.h>
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#include "cairo-test.h"
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#include <stdio.h>
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#define SIZE 12
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static cairo_test_draw_function_t draw;
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cairo_test_t test = {
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"source-clip-scale",
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"Test that a source surface is not affected by a clip when scaling",
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SIZE * 2, SIZE,
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draw
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};
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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 *source;
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cairo_t *cr2;
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source = cairo_surface_create_similar (cairo_get_group_target (cr),
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CAIRO_CONTENT_COLOR_ALPHA,
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SIZE, SIZE);
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cr2 = cairo_create (source);
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/* Fill the source surface with green */
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cairo_set_source_rgb (cr2, 0, 1, 0);
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cairo_paint (cr2);
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/* Draw a blue square in the middle of the source with clipping.
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* Note that we are only clipping within a save/restore block but
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* the buggy behavior demonstrates that the clip remains present
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* on the surface. */
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cairo_save (cr2);
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cairo_rectangle (cr2,
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SIZE / 4, SIZE / 4,
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SIZE / 2, SIZE / 2);
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cairo_clip (cr2);
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cairo_set_source_rgb (cr2, 0, 0, 1);
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cairo_paint (cr2);
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cairo_restore (cr2);
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/* Fill the destination surface with solid red (should not appear
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* in final result) */
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cairo_set_source_rgb (cr, 1, 0, 0);
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cairo_paint (cr);
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/* Now draw the source surface onto the destination with scaling. */
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cairo_scale (cr, 2.0, 1.0);
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cairo_set_source_surface (cr, source, 0, 0);
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cairo_paint (cr);
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cairo_destroy (cr2);
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cairo_surface_destroy (source);
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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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