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942a15ba9e
By filling the background with grey, we can see that Xlib fills areas with black that it shouldn't. Xlib therefore now fails this test.
93 lines
3.2 KiB
C
93 lines
3.2 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: Behdad Esfahbod <behdad@behdad.org>
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*/
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/* Exhibits nasty behaviour with GS due as their /Interpolate implementation
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* does not function for rotated images. */
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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 100
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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 *surface;
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cairo_t * cr_surface;
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int surface_size = 6;
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/* Fill the background with grey, so that it's easily visible when
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* things get overdrawn */
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cairo_set_source_rgb (cr, 0.5, 0.5, 0.5);
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cairo_paint (cr);
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/* Create an image surface with my favorite four colors in each
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* quadrant. */
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surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24,
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surface_size, surface_size);
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cr_surface = cairo_create (surface);
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cairo_surface_destroy (surface);
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cairo_set_source_rgb (cr_surface, 1, 1, 1);
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cairo_rectangle (cr_surface,
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0, 0,
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surface_size / 2, surface_size / 2);
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cairo_fill (cr_surface);
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cairo_set_source_rgb (cr_surface, 1, 0, 0);
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cairo_rectangle (cr_surface,
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surface_size / 2, 0,
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surface_size / 2, surface_size / 2);
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cairo_fill (cr_surface);
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cairo_set_source_rgb (cr_surface, 0, 1, 0);
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cairo_rectangle (cr_surface,
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0, surface_size / 2,
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surface_size / 2, surface_size / 2);
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cairo_fill (cr_surface);
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cairo_set_source_rgb (cr_surface, 0, 0, 1);
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cairo_rectangle (cr_surface,
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surface_size / 2, surface_size / 2,
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surface_size / 2, surface_size / 2);
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cairo_fill (cr_surface);
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cairo_scale (cr, 10, 10);
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cairo_rotate (cr, 1.);
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cairo_set_source_surface (cr, cairo_get_target (cr_surface), 4, -4.5);
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cairo_destroy (cr_surface);
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cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE);
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cairo_paint (cr);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (surface_pattern_scale_up,
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"Test scaled-up transformed not-repeated surface patterns"
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"\nFails xlib backend (with argb32) with inexplicable alpha in result",
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"transform", /* keywords */
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NULL, /* requirements */
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SIZE, SIZE,
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NULL, draw)
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