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/*
* Copyright © 2005 Red Hat, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Red Hat, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc. makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Carl D. Worth <cworth@cworth.org>
*/
#include "cairo-test.h"
#include <cairo-ft.h>
static void
_stress_font_cache (FT_Face ft_face, cairo_t *cr, int lvl);
static cairo_font_face_t *
_load_font (FT_Face ft_face, int flags, cairo_t *cr, int lvl)
{
cairo_font_face_t *font_face;
cairo_font_extents_t font_extents;
_stress_font_cache (ft_face, cr, lvl+1);
font_face = cairo_ft_font_face_create_for_ft_face (ft_face, flags);
cairo_set_font_face (cr, font_face);
cairo_font_extents (cr, &font_extents);
_stress_font_cache (ft_face, cr, lvl+1);
return font_face;
}
static void
_stress_font_cache (FT_Face ft_face, cairo_t *cr, int lvl)
{
#define A _load_font (ft_face, 0, cr, lvl)
#define B _load_font (ft_face, FT_LOAD_NO_BITMAP, cr, lvl)
#define C _load_font (ft_face, FT_LOAD_NO_RECURSE, cr, lvl)
#define D _load_font (ft_face, FT_LOAD_FORCE_AUTOHINT, cr, lvl)
cairo_font_face_t *font_face[4];
while (lvl++ < 5) {
font_face[0] = A; font_face[1] = A;
font_face[2] = A; font_face[3] = A;
cairo_font_face_destroy (font_face[0]);
cairo_font_face_destroy (font_face[1]);
cairo_font_face_destroy (font_face[2]);
cairo_font_face_destroy (font_face[3]);
font_face[0] = A; font_face[1] = B;
font_face[2] = C; font_face[3] = D;
cairo_font_face_destroy (font_face[0]);
cairo_font_face_destroy (font_face[1]);
cairo_font_face_destroy (font_face[2]);
cairo_font_face_destroy (font_face[3]);
font_face[0] = A; font_face[1] = B;
font_face[2] = C; font_face[3] = D;
cairo_font_face_destroy (font_face[3]);
cairo_font_face_destroy (font_face[2]);
cairo_font_face_destroy (font_face[1]);
cairo_font_face_destroy (font_face[0]);
font_face[0] = A;
font_face[1] = A;
cairo_font_face_destroy (font_face[0]);
font_face[2] = A;
cairo_font_face_destroy (font_face[1]);
font_face[3] = A;
cairo_font_face_destroy (font_face[2]);
cairo_font_face_destroy (font_face[3]);
font_face[0] = A;
font_face[1] = B;
cairo_font_face_destroy (font_face[0]);
font_face[2] = C;
cairo_font_face_destroy (font_face[1]);
font_face[3] = D;
cairo_font_face_destroy (font_face[2]);
cairo_font_face_destroy (font_face[3]);
}
#undef A
#undef B
#undef C
#undef D
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
const cairo_test_context_t *ctx = cairo_test_get_context (cr);
FcPattern *pattern, *resolved;
FcResult result;
cairo_font_face_t *font_face;
cairo_scaled_font_t *scaled_font;
cairo_font_options_t *font_options;
cairo_font_extents_t font_extents;
cairo_matrix_t font_matrix, ctm;
FT_Face ft_face;
/* We're trying here to get our hands on _some_ FT_Face but we do
* not at all care which one. So we start with an empty pattern
* and do the minimal substitution on it in order to get a valid
* pattern.
*
* Do not use this in production code! */
pattern = FcPatternCreate ();
if (! pattern) {
cairo_test_log (ctx, "FcPatternCreate failed.\n");
return cairo_test_status_from_status (ctx, CAIRO_STATUS_NO_MEMORY);
}
FcConfigSubstitute (NULL, pattern, FcMatchPattern);
FcDefaultSubstitute (pattern);
resolved = FcFontMatch (NULL, pattern, &result);
if (! resolved) {
FcPatternDestroy (pattern);
cairo_test_log (ctx, "FcFontMatch failed.\n");
return cairo_test_status_from_status (ctx, CAIRO_STATUS_NO_MEMORY);
}
font_face = cairo_ft_font_face_create_for_pattern (resolved);
if (cairo_font_face_status (font_face)) {
FcPatternDestroy (resolved);
FcPatternDestroy (pattern);
return cairo_test_status_from_status (ctx, cairo_font_face_status (font_face));
}
if (cairo_font_face_get_type (font_face) != CAIRO_FONT_TYPE_FT) {
cairo_test_log (ctx, "Unexpected value from cairo_font_face_get_type: %d (expected %d)\n",
cairo_font_face_get_type (font_face), CAIRO_FONT_TYPE_FT);
cairo_font_face_destroy (font_face);
FcPatternDestroy (resolved);
FcPatternDestroy (pattern);
return CAIRO_TEST_FAILURE;
}
cairo_matrix_init_identity (&font_matrix);
cairo_get_matrix (cr, &ctm);
font_options = cairo_font_options_create ();
cairo_get_font_options (cr, font_options);
scaled_font = cairo_scaled_font_create (font_face,
&font_matrix,
&ctm,
font_options);
cairo_font_options_destroy (font_options);
cairo_font_face_destroy (font_face);
FcPatternDestroy (pattern);
FcPatternDestroy (resolved);
if (cairo_scaled_font_status (scaled_font)) {
return cairo_test_status_from_status (ctx,
cairo_scaled_font_status (scaled_font));
}
if (cairo_scaled_font_get_type (scaled_font) != CAIRO_FONT_TYPE_FT) {
cairo_test_log (ctx, "Unexpected value from cairo_scaled_font_get_type: %d (expected %d)\n",
cairo_scaled_font_get_type (scaled_font), CAIRO_FONT_TYPE_FT);
cairo_scaled_font_destroy (scaled_font);
return CAIRO_TEST_FAILURE;
}
ft_face = cairo_ft_scaled_font_lock_face (scaled_font);
if (ft_face == NULL) {
cairo_test_log (ctx, "Failed to get an ft_face with cairo_ft_scaled_font_lock_face\n");
cairo_scaled_font_destroy (scaled_font);
return CAIRO_TEST_FAILURE;
}
/* phew, that was a lot of work. But at least we didn't ever have
* to call freetype directly, nor did we have to make many (any?)
* assumptions about the current system.
*
* Now, on to the simple thing we actually want to test.
*/
cairo_save (cr);
/* First we want to test caching behaviour */
_stress_font_cache (ft_face, cr, 0);
/* Set the font_face and force cairo to actually use it for
* something. */
font_face = cairo_ft_font_face_create_for_ft_face (ft_face, 0);
cairo_set_font_face (cr, font_face);
cairo_font_extents (cr, &font_extents);
cairo_restore (cr);
/* Finally, even more cleanup */
cairo_font_face_destroy (font_face);
cairo_ft_scaled_font_unlock_face (scaled_font);
cairo_scaled_font_destroy (scaled_font);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (ft_font_create_for_ft_face,
"Simple test to verify that cairo_ft_font_create_for_ft_face doesn't crash.",
"ft, font", /* keywords */
NULL, /* requirements */
0, 0,
NULL, draw)
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