mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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e90073f7dd
Avoid calling libtool to link every single test case, by building just one binary from all the sources. This binary is then given the task of choosing tests to run (based on user selection and individual test requirement), forking each test into its own process and accumulating the results.
102 lines
3.4 KiB
C
102 lines
3.4 KiB
C
/*
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* Copyright © 2008 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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* Authors: Carl D. Worth <cworth@cworth.org>
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* Owen Taylor <otaylor@redhat.com>
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*/
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#include "cairo-test.h"
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/* This test exercises code that computes the extents of a surface
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* pattern with CAIRO_FILTER_BILINEAR, (where the filtering
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* effectively increases the extents of the pattern).
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*
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* The original bug was reported by Owen Taylor here:
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*
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* bad clipping with EXTEND_NONE
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* http://bugs.freedesktop.org/show_bug.cgi?id=15349
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*/
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#define SCALE 10
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#define PAD 3
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#define WIDTH (PAD + 3 * SCALE + PAD)
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#define HEIGHT WIDTH
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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 *image;
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cairo_t *cr2;
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image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 2, 2);
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/* Fill with an opaque background to avoid a separate rgb24 ref image */
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_paint (cr);
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/* First check handling of pattern extents > surface extents */
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cairo_save (cr);
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cairo_scale (cr, width/2., height/2.);
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/* Create a solid black source to merge with the background */
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cr2 = cairo_create (image);
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cairo_set_source_rgb (cr2, 0, 0 ,0);
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cairo_paint (cr2);
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cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0);
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cairo_destroy (cr2);
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cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_BILINEAR);
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cairo_paint (cr);
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cairo_restore (cr);
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/* Then scale to smaller so we can see the full bilinear extents */
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cairo_save (cr);
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cairo_translate (cr, PAD, PAD);
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cairo_scale (cr, SCALE, SCALE);
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cairo_translate (cr, 0.5, 0.5);
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/* Create a 2x2 blue+red checkerboard source */
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cr2 = cairo_create (image);
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cairo_set_source_rgb (cr2, 1, 0 ,0); /* red */
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cairo_paint (cr2);
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cairo_set_source_rgb (cr2, 0, 0, 1); /* blue */
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cairo_rectangle (cr2, 0, 1, 1, 1);
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cairo_rectangle (cr2, 1, 0, 1, 1);
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cairo_fill (cr2);
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cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0);
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cairo_destroy (cr2);
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cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_BILINEAR);
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cairo_paint (cr);
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cairo_restore (cr);
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cairo_surface_destroy (image);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (filter_bilinear_extents,
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"Test that pattern extents are properly computed for CAIRO_FILTER_BILINEAR",
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"extents", /* keywords */
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NULL, /* requirements */
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WIDTH, HEIGHT,
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NULL, draw)
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