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Diffstat (limited to 'libs/cairo-1.16.0/test/image-bug-710072.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/image-bug-710072.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/image-bug-710072.c b/libs/cairo-1.16.0/test/image-bug-710072.c new file mode 100644 index 0000000..9cf0da7 --- /dev/null +++ b/libs/cairo-1.16.0/test/image-bug-710072.c @@ -0,0 +1,80 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2011 Intel Corporation + * + * 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. + * + * Author: Chris Wilson <chris@chris-wilson.co.uk> + */ + +/* + * This test case aims to reproduce the misbehaviour exhibited in + * https://bugs.launchpad.net/ubuntu/+source/cairo/+bug/710072 + * i.e. out of bounds rendering with the rectangular span compositor. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw_aligned (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_rectangle (cr, -10, -10, 20, 20); + cairo_rectangle (cr, 5, 5, 20, 20); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_fill_preserve (cr); + cairo_set_source_rgba (cr, 1, 0, 0, .5); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_unaligned (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_rectangle (cr, -10.5, -10.5, 20, 20); + cairo_rectangle (cr, 5.5, 5.5, 20, 20); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_fill_preserve (cr); + cairo_set_source_rgba (cr, 1, 0, 0, .5); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (image_bug_710072_aligned, + "Tests a bug where we may compute spans greater than bounded extents", + "extents, fill, stroke", /* keywords */ + NULL, /* requirements */ + 15, 15, + NULL, draw_aligned) + +CAIRO_TEST (image_bug_710072_unaligned, + "Tests a bug where we may compute spans greater than bounded extents", + "extents, fill, stroke", /* keywords */ + NULL, /* requirements */ + 15, 15, + NULL, draw_unaligned) |