From 530ffd0b7d3c39757b20f00716e486b5caf89aff Mon Sep 17 00:00:00 2001 From: sanine Date: Wed, 12 Oct 2022 12:03:23 -0500 Subject: add cairo --- libs/cairo-1.16.0/test/large-font.c | 73 +++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 libs/cairo-1.16.0/test/large-font.c (limited to 'libs/cairo-1.16.0/test/large-font.c') diff --git a/libs/cairo-1.16.0/test/large-font.c b/libs/cairo-1.16.0/test/large-font.c new file mode 100644 index 0000000..0a13944 --- /dev/null +++ b/libs/cairo-1.16.0/test/large-font.c @@ -0,0 +1,73 @@ +/* + * 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. + * + * Author: Carl D. Worth + */ + +/* Bug history: + * + * 2008-05-23: Caolan McNamara noticed a bug in OpenOffice.org where, + * when using a very large font, space would be left for a + * glyph but it would actually be rendered in the wrong + * place. He wrote a minimal test case and posted the bug + * here: + * + * corrupt glyph positions with large font + * https://bugzilla.redhat.com/show_bug.cgi?id=448104 + * + * 2008-05-23: Carl Worth wrote this test for the cairo test suite to + * exercise the bug. + */ + +#include "cairo-test.h" + +#define WIDTH 800 +#define HEIGHT 800 +#define TEXT_SIZE 10000 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* paint white so we don't need separate ref images for + * RGB24 and ARGB32 */ + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_move_to (cr, -TEXT_SIZE / 2, TEXT_SIZE / 2); + cairo_show_text (cr, "xW"); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (large_font, + "Draws a very large font to exercise a glyph-positioning bug", + "stress, font", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) -- cgit v1.2.1