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Diffstat (limited to 'libs/cairo-1.16.0/test/ft-font-create-for-ft-face.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/ft-font-create-for-ft-face.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/ft-font-create-for-ft-face.c b/libs/cairo-1.16.0/test/ft-font-create-for-ft-face.c new file mode 100644 index 0000000..52c838d --- /dev/null +++ b/libs/cairo-1.16.0/test/ft-font-create-for-ft-face.c @@ -0,0 +1,228 @@ +/* + * 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) + |