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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/.
216 lines
6.4 KiB
C
216 lines
6.4 KiB
C
/*
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* Copyright © 2006, 2008 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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* Contributor(s):
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* Kristian Høgsberg <krh@redhat.com>
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* Behdad Esfahbod <behdad@behdad.org>
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include "cairo-test.h"
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/*#define ROTATED 1*/
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#define BORDER 10
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#define TEXT_SIZE 64
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#define WIDTH (TEXT_SIZE * 12 + 2*BORDER)
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#define HEIGHT ((TEXT_SIZE + 2*BORDER)*2)
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#define TEXT "geez... cairo user-font"
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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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"user-font-proxy",
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"Tests a user-font using a native font in its render_glyph",
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#ifndef ROTATED
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WIDTH, HEIGHT,
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#else
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WIDTH, WIDTH,
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#endif
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draw
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};
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static cairo_user_data_key_t fallback_font_key;
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static cairo_status_t
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test_scaled_font_init (cairo_scaled_font_t *scaled_font,
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cairo_t *cr,
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cairo_font_extents_t *extents)
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{
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cairo_set_font_face (cr,
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cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font),
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&fallback_font_key));
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cairo_scaled_font_set_user_data (scaled_font,
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&fallback_font_key,
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cairo_scaled_font_reference (cairo_get_scaled_font (cr)),
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(cairo_destroy_func_t) cairo_scaled_font_destroy);
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cairo_font_extents (cr, extents);
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_status_t
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test_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font,
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unsigned long glyph,
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cairo_t *cr,
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cairo_text_extents_t *extents)
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{
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cairo_glyph_t cairo_glyph;
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cairo_glyph.index = glyph;
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cairo_glyph.x = 0;
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cairo_glyph.y = 0;
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cairo_set_font_face (cr,
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cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font),
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&fallback_font_key));
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cairo_show_glyphs (cr, &cairo_glyph, 1);
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cairo_glyph_extents (cr, &cairo_glyph, 1, extents);
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_status_t
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test_scaled_font_text_to_glyphs (cairo_scaled_font_t *scaled_font,
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const char *utf8,
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int utf8_len,
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cairo_glyph_t **glyphs,
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int *num_glyphs,
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cairo_text_cluster_t **clusters,
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int *num_clusters,
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cairo_bool_t *backward)
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{
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cairo_scaled_font_t *fallback_scaled_font;
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fallback_scaled_font = cairo_scaled_font_get_user_data (scaled_font,
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&fallback_font_key);
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return cairo_scaled_font_text_to_glyphs (fallback_scaled_font, 0, 0,
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utf8, utf8_len,
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glyphs, num_glyphs,
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clusters, num_clusters,
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backward);
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}
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static cairo_font_face_t *user_font_face = NULL;
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static cairo_font_face_t *
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get_user_font_face (void)
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{
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if (!user_font_face) {
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cairo_font_face_t *fallback_font_face;
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user_font_face = cairo_user_font_face_create ();
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cairo_user_font_face_set_init_func (user_font_face, test_scaled_font_init);
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cairo_user_font_face_set_render_glyph_func (user_font_face, test_scaled_font_render_glyph);
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cairo_user_font_face_set_text_to_glyphs_func (user_font_face, test_scaled_font_text_to_glyphs);
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/* This also happens to be default font face on cairo_t, so does
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* not make much sense here. For demonstration only.
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*/
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fallback_font_face = cairo_toy_font_face_create ("",
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CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_NORMAL);
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cairo_font_face_set_user_data (user_font_face,
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&fallback_font_key,
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fallback_font_face,
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(cairo_destroy_func_t) cairo_font_face_destroy);
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}
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return user_font_face;
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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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const char text[] = TEXT;
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cairo_font_extents_t font_extents;
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cairo_text_extents_t extents;
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_paint (cr);
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#ifdef ROTATED
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cairo_translate (cr, TEXT_SIZE, 0);
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cairo_rotate (cr, .6);
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#endif
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cairo_set_font_face (cr, get_user_font_face ());
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cairo_set_font_size (cr, TEXT_SIZE);
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cairo_font_extents (cr, &font_extents);
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cairo_text_extents (cr, text, &extents);
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/* logical boundaries in red */
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cairo_move_to (cr, 0, BORDER);
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cairo_rel_line_to (cr, WIDTH, 0);
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cairo_move_to (cr, 0, BORDER + font_extents.ascent);
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cairo_rel_line_to (cr, WIDTH, 0);
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cairo_move_to (cr, 0, BORDER + font_extents.ascent + font_extents.descent);
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cairo_rel_line_to (cr, WIDTH, 0);
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cairo_move_to (cr, BORDER, 0);
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cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE);
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cairo_move_to (cr, BORDER + extents.x_advance, 0);
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cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE);
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cairo_set_source_rgb (cr, 1, 0, 0);
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cairo_set_line_width (cr, 2);
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cairo_stroke (cr);
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/* ink boundaries in green */
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cairo_rectangle (cr,
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BORDER + extents.x_bearing, BORDER + font_extents.ascent + extents.y_bearing,
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extents.width, extents.height);
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cairo_set_source_rgb (cr, 0, 1, 0);
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cairo_set_line_width (cr, 2);
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cairo_stroke (cr);
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/* text in gray */
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_move_to (cr, BORDER, BORDER + font_extents.ascent);
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cairo_show_text (cr, text);
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/* filled version of text in light blue */
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cairo_set_source_rgb (cr, 0, 0, 1);
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cairo_move_to (cr, BORDER, BORDER + font_extents.height + BORDER + font_extents.ascent);
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cairo_text_path (cr, text);
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cairo_fill (cr);
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if (user_font_face) {
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cairo_font_face_destroy (user_font_face);
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user_font_face = NULL;
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}
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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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