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436c0c8be2
In order to run under memfault, the framework is first extended to handle running concurrent tests - i.e. multi-threading. (Not that this is a requirement for memfault, instead it shares a common goal of storing per-test data). To that end all the global data is moved into a per-test context and the targets are adjusted to avoid overlap on shared, global resources (such as output files and frame buffers). In order to preserve the simplicity of the standard draw routines, the context is not passed explicitly as a parameter to the routines, but is instead attached to the cairo_t via the user_data. For the masochist, to enable the tests to be run across multiple threads simply set the environment variable CAIRO_TEST_NUM_THREADS to the desired number. In the long run, we can hope the need for memfault (runtime testing of error paths) will be mitigated by static analysis. A promising candidate for this task would appear to be http://hal.cs.berkeley.edu/cil/.
116 lines
3.8 KiB
C
116 lines
3.8 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: Eugeniy Meshcheryakov <eugen@debian.org>
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* Adrian Johnson <ajohnson@redneon.com>
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* Carl Worth <cworth@cworth.org>
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*/
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#include "cairo-test.h"
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#include <cairo-ft.h>
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#define TEXT_SIZE 20
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#define PAD 10
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#define GRID_SIZE 30
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#define GRID_ROWS 10
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#define GRID_COLS 4
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#define NUM_GLYPHS (GRID_ROWS * GRID_COLS)
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#define WIDTH (PAD + GRID_COLS * GRID_SIZE + PAD)
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#define HEIGHT (PAD + GRID_ROWS * GRID_SIZE + PAD)
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/* This test was originally inspired by this bug report:
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*
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* Error when creating pdf charts for new FreeSerifItalic.ttf
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* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=%23474136
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*
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* The original assertion failure was fairly boring, but the later
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* glyph mispositiing was quite interesting. And it turns out that the
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* _cairo_pdf_operators_show_glyphs code is fairly convoluted with a
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* code path that wasn't being exercised at all by the test suite.
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*
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* So this is an attempt to exercise that code path. Apparently laying
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* glyphs out vertically in a table like this, (so that there's a
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* large change in Y position from one glyph to the next), exercises
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* the code well.
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*/
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static cairo_test_draw_function_t draw;
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static const cairo_test_t test = {
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"ft-show-glyphs-table",
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"Test cairo_show_glyphs with cairo-ft backend and glyphs laid out in a table",
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WIDTH, HEIGHT,
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draw
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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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cairo_font_options_t *font_options;
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cairo_scaled_font_t *scaled_font;
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FT_Face face;
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FT_ULong charcode;
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FT_UInt idx;
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int i = 0;
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cairo_glyph_t glyphs[NUM_GLYPHS];
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/* paint white so we don't need separate ref images for
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* RGB24 and ARGB32 */
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cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
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cairo_paint (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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font_options = cairo_font_options_create ();
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cairo_get_font_options (cr, font_options);
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cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_OFF);
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cairo_set_font_options (cr, font_options);
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cairo_font_options_destroy (font_options);
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cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
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scaled_font = cairo_get_scaled_font (cr);
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face = cairo_ft_scaled_font_lock_face (scaled_font);
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{
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charcode = FT_Get_First_Char(face, &idx);
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while (idx && (i < NUM_GLYPHS)) {
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glyphs[i] = (cairo_glyph_t) {idx, PAD + GRID_SIZE * (i/GRID_ROWS), PAD + TEXT_SIZE + GRID_SIZE * (i%GRID_ROWS)};
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i++;
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charcode = FT_Get_Next_Char(face, charcode, &idx);
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}
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}
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cairo_ft_scaled_font_unlock_face (scaled_font);
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cairo_show_glyphs(cr, glyphs, i);
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return CAIRO_TEST_SUCCESS;
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}
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int
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main (void)
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{
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return cairo_test (&test);
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}
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