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Diffstat (limited to 'test/filter-bilinear-extents.c')
| -rw-r--r-- | test/filter-bilinear-extents.c | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/test/filter-bilinear-extents.c b/test/filter-bilinear-extents.c deleted file mode 100644 index 79d36f6e6..000000000 --- a/test/filter-bilinear-extents.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * Copyright © 2008 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. - * - * Authors: Carl D. Worth <cworth@cworth.org> - * Owen Taylor <otaylor@redhat.com> - */ - -#include "cairo-test.h" - -/* This test exercises code that computes the extents of a surface - * pattern with CAIRO_FILTER_BILINEAR, (where the filtering - * effectively increases the extents of the pattern). - * - * The original bug was reported by Owen Taylor here: - * - * bad clipping with EXTEND_NONE - * http://bugs.freedesktop.org/show_bug.cgi?id=15349 - */ - -#define SCALE 10 -#define PAD 3 -#define WIDTH (PAD + 3 * SCALE + PAD) -#define HEIGHT WIDTH - -static cairo_test_status_t -draw (cairo_t *cr, int width, int height) -{ - cairo_surface_t *image; - cairo_t *cr2; - - image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 2, 2); - - /* Fill with an opaque background to avoid a separate rgb24 ref image */ - cairo_set_source_rgb (cr, 0, 0, 0); - cairo_paint (cr); - - /* First check handling of pattern extents > surface extents */ - cairo_save (cr); - cairo_scale (cr, width/2., height/2.); - - /* Create a solid black source to merge with the background */ - cr2 = cairo_create (image); - cairo_set_source_rgb (cr2, 0, 0 ,0); - cairo_paint (cr2); - cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); - cairo_destroy (cr2); - cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_BILINEAR); - cairo_paint (cr); - cairo_restore (cr); - - /* Then scale to smaller so we can see the full bilinear extents */ - cairo_save (cr); - cairo_translate (cr, PAD, PAD); - cairo_scale (cr, SCALE, SCALE); - cairo_translate (cr, 0.5, 0.5); - - /* Create a 2x2 blue+red checkerboard source */ - cr2 = cairo_create (image); - cairo_set_source_rgb (cr2, 1, 0 ,0); /* red */ - cairo_paint (cr2); - cairo_set_source_rgb (cr2, 0, 0, 1); /* blue */ - cairo_rectangle (cr2, 0, 1, 1, 1); - cairo_rectangle (cr2, 1, 0, 1, 1); - cairo_fill (cr2); - cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); - cairo_destroy (cr2); - - cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_BILINEAR); - cairo_paint (cr); - cairo_restore (cr); - - cairo_surface_destroy (image); - - return CAIRO_TEST_SUCCESS; -} - -CAIRO_TEST (filter_bilinear_extents, - "Test that pattern extents are properly computed for CAIRO_FILTER_BILINEAR", - "extents", /* keywords */ - NULL, /* requirements */ - WIDTH, HEIGHT, - NULL, draw) |