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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.
81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
/*
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* Copyright © 2005 Red Hat, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Red Hat, Inc. not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Red Hat, Inc. makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Carl D. Worth <cworth@cworth.org>
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*/
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#include "cairo-test.h"
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#include "cairo-boilerplate-scaled-font.h"
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#define TEXT_SIZE 12
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/* Bug history
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*
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* 2006-06-22 Carl Worth <cworth@cworth.org>
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*
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* This is a test case to demonstrate the following bug in the xlib backend:
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*
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* Some characters aren't displayed when using xlib (cache usage missing freeze/thaw)
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* https://bugs.freedesktop.org/show_bug.cgi?id=6955
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*
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* We replicate this bug by using the cairo_scaled_font_set_max_glyphs_per_font
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* function to artifically induce cache pressure. (This function was added
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* for this very purpose.)
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*
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* 2006-06-22 Carl Worth <cworth@cworth.org>
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*
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* Bug was simple enough to solve by just adding a freeze/thaw pair
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* around the scaled_font's glyph cache in
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* _cairo_xlib_surface_show_glyphs, (I went ahead and added
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* _cairo_sacled_font_freeze/thaw_cache functions for this).
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*/
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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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/* We draw in the default black, so paint white first. */
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cairo_save (cr);
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cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
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cairo_paint (cr);
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cairo_restore (cr);
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cairo_select_font_face (cr, "Bitstream Vera Sans",
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CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_NORMAL);
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cairo_set_font_size (cr, TEXT_SIZE);
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cairo_set_source_rgb (cr, 0, 0, 0); /* black */
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cairo_boilerplate_scaled_font_set_max_glyphs_cached (cairo_get_scaled_font (cr), 1);
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cairo_move_to (cr, 1, TEXT_SIZE);
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cairo_show_text (cr, "the five boxing wizards jump quickly");
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (glyph_cache_pressure,
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"Ensure that all backends behave well under artificial glyph cache pressure",
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"stress", /* keywords */
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NULL, /* requirements */
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223, TEXT_SIZE + 4,
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NULL, draw)
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