| File: | root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c |
| Warning: | line 1536, column 6 Value stored to 'lcd_filter' is never read |
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| 1 | /* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ |
| 2 | /* cairo - a vector graphics library with display and print output |
| 3 | * |
| 4 | * Copyright © 2000 Keith Packard |
| 5 | * Copyright © 2005 Red Hat, Inc |
| 6 | * |
| 7 | * This library is free software; you can redistribute it and/or |
| 8 | * modify it either under the terms of the GNU Lesser General Public |
| 9 | * License version 2.1 as published by the Free Software Foundation |
| 10 | * (the "LGPL") or, at your option, under the terms of the Mozilla |
| 11 | * Public License Version 1.1 (the "MPL"). If you do not alter this |
| 12 | * notice, a recipient may use your version of this file under either |
| 13 | * the MPL or the LGPL. |
| 14 | * |
| 15 | * You should have received a copy of the LGPL along with this library |
| 16 | * in the file COPYING-LGPL-2.1; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA |
| 18 | * You should have received a copy of the MPL along with this library |
| 19 | * in the file COPYING-MPL-1.1 |
| 20 | * |
| 21 | * The contents of this file are subject to the Mozilla Public License |
| 22 | * Version 1.1 (the "License"); you may not use this file except in |
| 23 | * compliance with the License. You may obtain a copy of the License at |
| 24 | * http://www.mozilla.org/MPL/ |
| 25 | * |
| 26 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY |
| 27 | * OF ANY KIND, either express or implied. See the LGPL or the MPL for |
| 28 | * the specific language governing rights and limitations. |
| 29 | * |
| 30 | * The Original Code is the cairo graphics library. |
| 31 | * |
| 32 | * The Initial Developer of the Original Code is Red Hat, Inc. |
| 33 | * |
| 34 | * Contributor(s): |
| 35 | * Graydon Hoare <graydon@redhat.com> |
| 36 | * Owen Taylor <otaylor@redhat.com> |
| 37 | * Keith Packard <keithp@keithp.com> |
| 38 | * Carl Worth <cworth@cworth.org> |
| 39 | */ |
| 40 | |
| 41 | #define _DEFAULT_SOURCE1 /* for strdup() */ |
| 42 | #include "cairoint.h" |
| 43 | |
| 44 | #include "cairo-error-private.h" |
| 45 | #include "cairo-image-surface-private.h" |
| 46 | #include "cairo-ft-private.h" |
| 47 | #include "cairo-list-inline.h" |
| 48 | #include "cairo-path-private.h" |
| 49 | #include "cairo-pattern-private.h" |
| 50 | #include "cairo-pixman-private.h" |
| 51 | #include "cairo-recording-surface-private.h" |
| 52 | |
| 53 | #include <float.h> |
| 54 | |
| 55 | #include "cairo-fontconfig-private.h" |
| 56 | |
| 57 | #include <ft2build.h> |
| 58 | #include FT_FREETYPE_H<freetype/freetype.h> |
| 59 | #include FT_OUTLINE_H<freetype/ftoutln.h> |
| 60 | #include FT_IMAGE_H<freetype/ftimage.h> |
| 61 | #include FT_BITMAP_H<freetype/ftbitmap.h> |
| 62 | #include FT_TRUETYPE_TABLES_H<freetype/tttables.h> |
| 63 | #include FT_XFREE86_H<freetype/ftfntfmt.h> |
| 64 | #include FT_MULTIPLE_MASTERS_H<freetype/ftmm.h> |
| 65 | #if HAVE_FT_GLYPHSLOT_EMBOLDEN |
| 66 | #include FT_SYNTHESIS_H<freetype/ftsynth.h> |
| 67 | #endif |
| 68 | |
| 69 | #ifdef FT_COLOR_H<freetype/ftcolor.h> |
| 70 | #include FT_COLOR_H<freetype/ftcolor.h> |
| 71 | #endif |
| 72 | |
| 73 | #if HAVE_FT_LIBRARY_SETLCDFILTER |
| 74 | #include FT_LCD_FILTER_H<freetype/ftlcdfil.h> |
| 75 | #endif |
| 76 | |
| 77 | #if HAVE_FT_SVG_DOCUMENT |
| 78 | #include FT_OTSVG_H<freetype/otsvg.h> |
| 79 | #endif |
| 80 | |
| 81 | #if HAVE_UNISTD_H1 |
| 82 | #include <unistd.h> |
| 83 | #elif !defined(access) |
| 84 | #define access(p, m) 0 |
| 85 | #endif |
| 86 | #include <dlfcn.h> |
| 87 | |
| 88 | /* Fontconfig version older than 2.6 didn't have these options */ |
| 89 | #ifndef FC_LCD_FILTER"lcdfilter" |
| 90 | #define FC_LCD_FILTER"lcdfilter" "lcdfilter" |
| 91 | #endif |
| 92 | /* Some Ubuntu versions defined FC_LCD_FILTER without defining the following */ |
| 93 | #ifndef FC_LCD_NONE0 |
| 94 | #define FC_LCD_NONE0 0 |
| 95 | #define FC_LCD_DEFAULT1 1 |
| 96 | #define FC_LCD_LIGHT2 2 |
| 97 | #define FC_LCD_LEGACY3 3 |
| 98 | #endif |
| 99 | |
| 100 | /* FreeType version older than 2.3.5(?) didn't have these options */ |
| 101 | #ifndef FT_LCD_FILTER_NONE0 |
| 102 | #define FT_LCD_FILTER_NONE0 0 |
| 103 | #define FT_LCD_FILTER_DEFAULT1 1 |
| 104 | #define FT_LCD_FILTER_LIGHT2 2 |
| 105 | #define FT_LCD_FILTER_LEGACY16 16 |
| 106 | #endif |
| 107 | |
| 108 | /* FreeType version older than 2.11 does not have the FT_RENDER_MODE_SDF enum value in FT_Render_Mode */ |
| 109 | #if FREETYPE_MAJOR2 > 2 || (FREETYPE_MAJOR2 == 2 && FREETYPE_MINOR13 >= 11) |
| 110 | #define HAVE_FT_RENDER_MODE_SDF1 1 |
| 111 | #endif |
| 112 | |
| 113 | #define DOUBLE_FROM_26_6(t)((double)(t) / 64.0) ((double)(t) / 64.0) |
| 114 | #define DOUBLE_TO_16_16(d)((FT_Fixed)((d) * 65536.0)) ((FT_Fixed)((d) * 65536.0)) |
| 115 | #define DOUBLE_FROM_16_16(t)((double)(t) / 65536.0) ((double)(t) / 65536.0) |
| 116 | |
| 117 | /* This is the max number of FT_face objects we keep open at once |
| 118 | */ |
| 119 | #define MAX_OPEN_FACES10 10 |
| 120 | |
| 121 | extern void mozilla_AddRefSharedFTFace(void* aContext); |
| 122 | extern void mozilla_ReleaseSharedFTFace(void* aContext, void* aOwner); |
| 123 | /* Returns true if the face's state has been modified by another owner. */ |
| 124 | extern int mozilla_LockSharedFTFace(void* aContext, void* aOwner); |
| 125 | extern void mozilla_UnlockSharedFTFace(void* aContext); |
| 126 | extern FT_Error mozilla_LoadFTGlyph(FT_Face aFace, uint32_t aGlyphIndex, int32_t aFlags); |
| 127 | extern void mozilla_LockFTLibrary(FT_Library aLibrary); |
| 128 | extern void mozilla_UnlockFTLibrary(FT_Library aLibrary); |
| 129 | |
| 130 | #define CAIRO_FT_LOCK(unscaled)((unscaled)->face_context ? (void)mozilla_LockSharedFTFace ((unscaled)->face_context, ((void*)0)) : (void)pthread_mutex_lock (&((unscaled)->mutex))) \ |
| 131 | ((unscaled)->face_context \ |
| 132 | ? (void)mozilla_LockSharedFTFace((unscaled)->face_context, NULL((void*)0)) \ |
| 133 | : (void)CAIRO_MUTEX_LOCK((unscaled)->mutex)pthread_mutex_lock (&((unscaled)->mutex))) |
| 134 | #define CAIRO_FT_UNLOCK(unscaled)((unscaled)->face_context ? mozilla_UnlockSharedFTFace((unscaled )->face_context) : (void)pthread_mutex_unlock (&((unscaled )->mutex))) \ |
| 135 | ((unscaled)->face_context \ |
| 136 | ? mozilla_UnlockSharedFTFace((unscaled)->face_context) \ |
| 137 | : (void)CAIRO_MUTEX_UNLOCK((unscaled)->mutex)pthread_mutex_unlock (&((unscaled)->mutex))) |
| 138 | |
| 139 | /** |
| 140 | * Function types for FreeType symbols we'll look up at runtime, rather than |
| 141 | * relying on build-time checks for availability. |
| 142 | */ |
| 143 | typedef FT_Error (*GetVarFunc) (FT_Face, FT_MM_Var**); |
| 144 | typedef FT_Error (*DoneVarFunc) (FT_Library, FT_MM_Var*); |
| 145 | typedef FT_Error (*GetVarDesignCoordsFunc) (FT_Face, FT_UInt, FT_Fixed*); |
| 146 | typedef FT_Error (*SetVarDesignCoordsFunc) (FT_Face, FT_UInt, FT_Fixed*); |
| 147 | typedef FT_Error (*GetVarBlendCoordsFunc) (FT_Face, FT_UInt, FT_Fixed*); |
| 148 | |
| 149 | /** |
| 150 | * SECTION:cairo-ft |
| 151 | * @Title: FreeType Fonts |
| 152 | * @Short_Description: Font support for FreeType |
| 153 | * @See_Also: #cairo_font_face_t |
| 154 | * |
| 155 | * The FreeType font backend is primarily used to render text on GNU/Linux |
| 156 | * systems, but can be used on other platforms too. |
| 157 | **/ |
| 158 | |
| 159 | /** |
| 160 | * CAIRO_HAS_FT_FONT: |
| 161 | * |
| 162 | * Defined if the FreeType font backend is available. |
| 163 | * This macro can be used to conditionally compile backend-specific code. |
| 164 | * |
| 165 | * Since: 1.0 |
| 166 | **/ |
| 167 | |
| 168 | /** |
| 169 | * CAIRO_HAS_FC_FONT: |
| 170 | * |
| 171 | * Defined if the Fontconfig-specific functions of the FreeType font backend |
| 172 | * are available. |
| 173 | * This macro can be used to conditionally compile backend-specific code. |
| 174 | * |
| 175 | * Since: 1.10 |
| 176 | **/ |
| 177 | |
| 178 | /* |
| 179 | * The simple 2x2 matrix is converted into separate scale and shape |
| 180 | * factors so that hinting works right |
| 181 | */ |
| 182 | |
| 183 | typedef struct _cairo_ft_font_transform { |
| 184 | double x_scale, y_scale; |
| 185 | double shape[2][2]; |
| 186 | } cairo_ft_font_transform_t; |
| 187 | |
| 188 | /* |
| 189 | * We create an object that corresponds to a single font on the disk; |
| 190 | * (identified by a filename/id pair) these are shared between all |
| 191 | * fonts using that file. For cairo_ft_font_face_create_for_ft_face(), we |
| 192 | * just create a one-off version with a permanent face value. |
| 193 | */ |
| 194 | |
| 195 | typedef struct _cairo_ft_font_face cairo_ft_font_face_t; |
| 196 | |
| 197 | struct _cairo_ft_unscaled_font { |
| 198 | cairo_unscaled_font_t base; |
| 199 | |
| 200 | cairo_bool_t from_face; /* was the FT_Face provided by user? */ |
| 201 | FT_Face face; /* provided or cached face */ |
| 202 | void *face_context; |
| 203 | |
| 204 | /* only set if from_face is false */ |
| 205 | char *filename; |
| 206 | int id; |
| 207 | |
| 208 | /* We temporarily scale the unscaled font as needed */ |
| 209 | cairo_bool_t have_scale; |
| 210 | cairo_matrix_t current_scale; |
| 211 | double x_scale; /* Extracted X scale factor */ |
| 212 | double y_scale; /* Extracted Y scale factor */ |
| 213 | cairo_bool_t have_shape; /* true if the current scale has a non-scale component*/ |
| 214 | cairo_matrix_t current_shape; |
| 215 | FT_Matrix Current_Shape; |
| 216 | |
| 217 | unsigned int have_color_set : 1; |
| 218 | unsigned int have_color : 1; /* true if the font contains color glyphs */ |
| 219 | FT_Fixed *variations; /* variation settings that FT_Face came */ |
| 220 | unsigned int num_palettes; |
| 221 | |
| 222 | cairo_mutex_t mutex; |
| 223 | int lock_count; |
| 224 | |
| 225 | cairo_ft_font_face_t *faces; /* Linked list of faces for this font */ |
| 226 | }; |
| 227 | |
| 228 | static int |
| 229 | _cairo_ft_unscaled_font_keys_equal (const void *key_a, |
| 230 | const void *key_b); |
| 231 | |
| 232 | static void |
| 233 | _cairo_ft_unscaled_font_fini (cairo_ft_unscaled_font_t *unscaled); |
| 234 | |
| 235 | typedef struct _cairo_ft_options { |
| 236 | cairo_font_options_t base; |
| 237 | unsigned int load_flags; /* flags for FT_Load_Glyph */ |
| 238 | unsigned int synth_flags; |
| 239 | } cairo_ft_options_t; |
| 240 | |
| 241 | static void |
| 242 | _cairo_ft_options_init_copy (cairo_ft_options_t *options, |
| 243 | const cairo_ft_options_t *other) |
| 244 | { |
| 245 | _cairo_font_options_init_copy (&options->base, &other->base); |
| 246 | options->load_flags = other->load_flags; |
| 247 | options->synth_flags = other->synth_flags; |
| 248 | } |
| 249 | |
| 250 | static void |
| 251 | _cairo_ft_options_fini (cairo_ft_options_t *options) |
| 252 | { |
| 253 | _cairo_font_options_fini (&options->base); |
| 254 | } |
| 255 | |
| 256 | struct _cairo_ft_font_face { |
| 257 | cairo_font_face_t base; |
| 258 | |
| 259 | cairo_ft_unscaled_font_t *unscaled; |
| 260 | cairo_ft_options_t ft_options; |
| 261 | cairo_ft_font_face_t *next; |
| 262 | |
| 263 | #if CAIRO_HAS_FC_FONT1 |
| 264 | FcPattern *pattern; /* if pattern is set, the above fields will be NULL */ |
| 265 | cairo_font_face_t *resolved_font_face; |
| 266 | FcConfig *resolved_config; |
| 267 | #endif |
| 268 | }; |
| 269 | |
| 270 | static const cairo_unscaled_font_backend_t cairo_ft_unscaled_font_backend; |
| 271 | |
| 272 | #if CAIRO_HAS_FC_FONT1 |
| 273 | static cairo_status_t |
| 274 | _cairo_ft_font_options_substitute (const cairo_font_options_t *options, |
| 275 | FcPattern *pattern); |
| 276 | |
| 277 | static cairo_font_face_t * |
| 278 | _cairo_ft_resolve_pattern (FcPattern *pattern, |
| 279 | const cairo_matrix_t *font_matrix, |
| 280 | const cairo_matrix_t *ctm, |
| 281 | const cairo_font_options_t *options); |
| 282 | |
| 283 | #endif |
| 284 | |
| 285 | cairo_status_t |
| 286 | _cairo_ft_to_cairo_error (FT_Error error) |
| 287 | { |
| 288 | /* Currently we don't get many (any?) useful statuses here. |
| 289 | * Populate as needed. */ |
| 290 | switch (error) |
| 291 | { |
| 292 | case FT_Err_Ok: |
| 293 | return CAIRO_STATUS_SUCCESS; |
| 294 | case FT_Err_Out_Of_Memory: |
| 295 | return CAIRO_STATUS_NO_MEMORY; |
| 296 | default: |
| 297 | return CAIRO_STATUS_FREETYPE_ERROR; |
| 298 | } |
| 299 | } |
| 300 | |
| 301 | /* |
| 302 | * We maintain a hash table to map file/id => #cairo_ft_unscaled_font_t. |
| 303 | * The hash table itself isn't limited in size. However, we limit the |
| 304 | * number of FT_Face objects we keep around; when we've exceeded that |
| 305 | * limit and need to create a new FT_Face, we dump the FT_Face from a |
| 306 | * random #cairo_ft_unscaled_font_t which has an unlocked FT_Face, (if |
| 307 | * there are any). |
| 308 | */ |
| 309 | |
| 310 | typedef struct _cairo_ft_unscaled_font_map { |
| 311 | cairo_hash_table_t *hash_table; |
| 312 | FT_Library ft_library; |
| 313 | int num_open_faces; |
| 314 | } cairo_ft_unscaled_font_map_t; |
| 315 | |
| 316 | static cairo_ft_unscaled_font_map_t *cairo_ft_unscaled_font_map = NULL((void*)0); |
| 317 | |
| 318 | |
| 319 | static FT_Face |
| 320 | _cairo_ft_unscaled_font_lock_face (cairo_ft_unscaled_font_t *unscaled); |
| 321 | |
| 322 | static void |
| 323 | _cairo_ft_unscaled_font_unlock_face (cairo_ft_unscaled_font_t *unscaled); |
| 324 | |
| 325 | static cairo_bool_t |
| 326 | _cairo_ft_scaled_font_is_vertical (cairo_scaled_font_t *scaled_font); |
| 327 | |
| 328 | |
| 329 | static void |
| 330 | _font_map_release_face_lock_held (cairo_ft_unscaled_font_map_t *font_map, |
| 331 | cairo_ft_unscaled_font_t *unscaled) |
| 332 | { |
| 333 | if (unscaled->face) { |
| 334 | FT_Done_Face (unscaled->face); |
| 335 | unscaled->face = NULL((void*)0); |
| 336 | unscaled->have_scale = FALSE0; |
| 337 | |
| 338 | font_map->num_open_faces--; |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | static cairo_status_t |
| 343 | _cairo_ft_unscaled_font_map_create (void) |
| 344 | { |
| 345 | cairo_ft_unscaled_font_map_t *font_map; |
| 346 | |
| 347 | /* This function is only intended to be called from |
| 348 | * _cairo_ft_unscaled_font_map_lock. So we'll crash if we can |
| 349 | * detect some other call path. */ |
| 350 | assert (cairo_ft_unscaled_font_map == NULL)((void) sizeof ((cairo_ft_unscaled_font_map == ((void*)0)) ? 1 : 0), __extension__ ({ if (cairo_ft_unscaled_font_map == ((void *)0)) ; else __assert_fail ("cairo_ft_unscaled_font_map == NULL" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 350 , __extension__ __PRETTY_FUNCTION__); })); |
| 351 | |
| 352 | font_map = _cairo_malloc (sizeof (cairo_ft_unscaled_font_map_t))((sizeof (cairo_ft_unscaled_font_map_t)) != 0 ? malloc(sizeof (cairo_ft_unscaled_font_map_t)) : ((void*)0)); |
| 353 | if (unlikely (font_map == NULL)(__builtin_expect (!!(font_map == ((void*)0)), 0))) |
| 354 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 355 | |
| 356 | font_map->hash_table = |
| 357 | _cairo_hash_table_create (_cairo_ft_unscaled_font_keys_equal); |
| 358 | |
| 359 | if (unlikely (font_map->hash_table == NULL)(__builtin_expect (!!(font_map->hash_table == ((void*)0)), 0))) |
| 360 | goto FAIL; |
| 361 | |
| 362 | if (unlikely (FT_Init_FreeType (&font_map->ft_library))(__builtin_expect (!!(FT_Init_FreeType (&font_map->ft_library )), 0))) |
| 363 | goto FAIL; |
| 364 | |
| 365 | font_map->num_open_faces = 0; |
| 366 | |
| 367 | cairo_ft_unscaled_font_map = font_map; |
| 368 | return CAIRO_STATUS_SUCCESS; |
| 369 | |
| 370 | FAIL: |
| 371 | if (font_map->hash_table) |
| 372 | _cairo_hash_table_destroy (font_map->hash_table); |
| 373 | free (font_map); |
| 374 | |
| 375 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 376 | } |
| 377 | |
| 378 | |
| 379 | static void |
| 380 | _cairo_ft_unscaled_font_map_pluck_entry (void *entry, void *closure) |
| 381 | { |
| 382 | cairo_ft_unscaled_font_t *unscaled = entry; |
| 383 | cairo_ft_unscaled_font_map_t *font_map = closure; |
| 384 | |
| 385 | _cairo_hash_table_remove (font_map->hash_table, |
| 386 | &unscaled->base.hash_entry); |
| 387 | |
| 388 | if (unscaled->from_face) |
| 389 | mozilla_ReleaseSharedFTFace (unscaled->face_context, unscaled); |
| 390 | else |
| 391 | _font_map_release_face_lock_held (font_map, unscaled); |
| 392 | |
| 393 | _cairo_ft_unscaled_font_fini (unscaled); |
| 394 | free (unscaled); |
| 395 | } |
| 396 | |
| 397 | static void |
| 398 | _cairo_ft_unscaled_font_map_destroy (void) |
| 399 | { |
| 400 | cairo_ft_unscaled_font_map_t *font_map; |
| 401 | |
| 402 | CAIRO_MUTEX_LOCK (_cairo_ft_unscaled_font_map_mutex)pthread_mutex_lock (&(_cairo_ft_unscaled_font_map_mutex)); |
| 403 | font_map = cairo_ft_unscaled_font_map; |
| 404 | cairo_ft_unscaled_font_map = NULL((void*)0); |
| 405 | CAIRO_MUTEX_UNLOCK (_cairo_ft_unscaled_font_map_mutex)pthread_mutex_unlock (&(_cairo_ft_unscaled_font_map_mutex )); |
| 406 | |
| 407 | if (font_map != NULL((void*)0)) { |
| 408 | _cairo_hash_table_foreach (font_map->hash_table, |
| 409 | _cairo_ft_unscaled_font_map_pluck_entry, |
| 410 | font_map); |
| 411 | assert (font_map->num_open_faces == 0)((void) sizeof ((font_map->num_open_faces == 0) ? 1 : 0), __extension__ ({ if (font_map->num_open_faces == 0) ; else __assert_fail ("font_map->num_open_faces == 0", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c" , 411, __extension__ __PRETTY_FUNCTION__); })); |
| 412 | |
| 413 | FT_Done_FreeType (font_map->ft_library); |
| 414 | |
| 415 | _cairo_hash_table_destroy (font_map->hash_table); |
| 416 | |
| 417 | free (font_map); |
| 418 | } |
| 419 | } |
| 420 | |
| 421 | static cairo_ft_unscaled_font_map_t * |
| 422 | _cairo_ft_unscaled_font_map_lock (void) |
| 423 | { |
| 424 | CAIRO_MUTEX_INITIALIZE ()do { } while (0); |
| 425 | |
| 426 | CAIRO_MUTEX_LOCK (_cairo_ft_unscaled_font_map_mutex)pthread_mutex_lock (&(_cairo_ft_unscaled_font_map_mutex)); |
| 427 | |
| 428 | if (unlikely (cairo_ft_unscaled_font_map == NULL)(__builtin_expect (!!(cairo_ft_unscaled_font_map == ((void*)0 )), 0))) { |
| 429 | if (unlikely (_cairo_ft_unscaled_font_map_create ())(__builtin_expect (!!(_cairo_ft_unscaled_font_map_create ()), 0))) { |
| 430 | CAIRO_MUTEX_UNLOCK (_cairo_ft_unscaled_font_map_mutex)pthread_mutex_unlock (&(_cairo_ft_unscaled_font_map_mutex )); |
| 431 | return NULL((void*)0); |
| 432 | } |
| 433 | } |
| 434 | |
| 435 | return cairo_ft_unscaled_font_map; |
| 436 | } |
| 437 | |
| 438 | static void |
| 439 | _cairo_ft_unscaled_font_map_unlock (void) |
| 440 | { |
| 441 | CAIRO_MUTEX_UNLOCK (_cairo_ft_unscaled_font_map_mutex)pthread_mutex_unlock (&(_cairo_ft_unscaled_font_map_mutex )); |
| 442 | } |
| 443 | |
| 444 | static void |
| 445 | _cairo_ft_unscaled_font_init_key (cairo_ft_unscaled_font_t *key, |
| 446 | cairo_bool_t from_face, |
| 447 | char *filename, |
| 448 | int id, |
| 449 | FT_Face face, |
| 450 | void *face_context) |
| 451 | { |
| 452 | uintptr_t hash; |
| 453 | |
| 454 | key->from_face = from_face; |
| 455 | key->filename = filename; |
| 456 | key->id = id; |
| 457 | key->face = face; |
| 458 | key->face_context = face_context; |
| 459 | |
| 460 | hash = _cairo_hash_string (filename); |
| 461 | /* the constants are just arbitrary primes */ |
| 462 | hash += ((uintptr_t) id) * 1607; |
| 463 | hash += ((uintptr_t) face) * 2137; |
| 464 | |
| 465 | key->base.hash_entry.hash = hash; |
| 466 | } |
| 467 | |
| 468 | /** |
| 469 | * _cairo_ft_unscaled_font_init: |
| 470 | * |
| 471 | * Initialize a #cairo_ft_unscaled_font_t. |
| 472 | * |
| 473 | * There are two basic flavors of #cairo_ft_unscaled_font_t, one |
| 474 | * created from an FT_Face and the other created from a filename/id |
| 475 | * pair. These two flavors are identified as from_face and !from_face. |
| 476 | * |
| 477 | * To initialize a from_face font, pass filename==%NULL, id=0 and the |
| 478 | * desired face. |
| 479 | * |
| 480 | * To initialize a !from_face font, pass the filename/id as desired |
| 481 | * and face==%NULL. |
| 482 | * |
| 483 | * Note that the code handles these two flavors in very distinct |
| 484 | * ways. For example there is a hash_table mapping |
| 485 | * filename/id->#cairo_unscaled_font_t in the !from_face case, but no |
| 486 | * parallel in the from_face case, (where the calling code would have |
| 487 | * to do its own mapping to ensure similar sharing). |
| 488 | **/ |
| 489 | static cairo_status_t |
| 490 | _cairo_ft_unscaled_font_init (cairo_ft_unscaled_font_t *unscaled, |
| 491 | cairo_bool_t from_face, |
| 492 | const char *filename, |
| 493 | int id, |
| 494 | FT_Face face, |
| 495 | void *face_context) |
| 496 | { |
| 497 | _cairo_unscaled_font_init (&unscaled->base, |
| 498 | &cairo_ft_unscaled_font_backend); |
| 499 | |
| 500 | unscaled->variations = NULL((void*)0); |
| 501 | |
| 502 | if (from_face) { |
| 503 | unscaled->from_face = TRUE1; |
| 504 | _cairo_ft_unscaled_font_init_key (unscaled, TRUE1, NULL((void*)0), id, face, face_context); |
| 505 | |
| 506 | |
| 507 | unscaled->have_color = FT_HAS_COLOR (face)( !!( (face)->face_flags & ( 1L << 14 ) ) ) != 0; |
| 508 | unscaled->have_color_set = TRUE1; |
| 509 | |
| 510 | static GetVarFunc getVar; |
| 511 | static DoneVarFunc doneVar; |
| 512 | static GetVarDesignCoordsFunc getVarDesignCoords; |
| 513 | |
| 514 | static int firstTime = 1; |
| 515 | if (firstTime) { |
| 516 | getVar = (GetVarFunc) dlsym (RTLD_DEFAULT((void *) 0), "FT_Get_MM_Var"); |
| 517 | doneVar = (DoneVarFunc) dlsym (RTLD_DEFAULT((void *) 0), "FT_Done_MM_Var"); |
| 518 | getVarDesignCoords = (GetVarDesignCoordsFunc) dlsym (RTLD_DEFAULT((void *) 0), "FT_Get_Var_Design_Coordinates"); |
| 519 | firstTime = 0; |
| 520 | } |
| 521 | |
| 522 | if (getVar && getVarDesignCoords) { |
| 523 | FT_MM_Var *ft_mm_var; |
| 524 | if (0 == (*getVar) (face, &ft_mm_var)) |
| 525 | { |
| 526 | unscaled->variations = calloc (ft_mm_var->num_axis, sizeof (FT_Fixed)); |
| 527 | if (unscaled->variations) |
| 528 | (*getVarDesignCoords) (face, ft_mm_var->num_axis, unscaled->variations); |
| 529 | if (doneVar) |
| 530 | (*doneVar) (face->glyph->library, ft_mm_var); |
| 531 | else |
| 532 | free (ft_mm_var); |
| 533 | } |
| 534 | } |
| 535 | } else { |
| 536 | char *filename_copy; |
| 537 | |
| 538 | unscaled->from_face = FALSE0; |
| 539 | unscaled->face = NULL((void*)0); |
| 540 | unscaled->face_context = NULL((void*)0); |
| 541 | |
| 542 | filename_copy = strdup (filename); |
| 543 | if (unlikely (filename_copy == NULL)(__builtin_expect (!!(filename_copy == ((void*)0)), 0))) |
| 544 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 545 | |
| 546 | _cairo_ft_unscaled_font_init_key (unscaled, FALSE0, filename_copy, id, NULL((void*)0), NULL((void*)0)); |
| 547 | |
| 548 | unscaled->have_color_set = FALSE0; |
| 549 | } |
| 550 | |
| 551 | unscaled->have_scale = FALSE0; |
| 552 | CAIRO_MUTEX_INIT (unscaled->mutex)do { cairo_mutex_t _tmp_mutex = { { 0, 0, 0, 0, PTHREAD_MUTEX_TIMED_NP , 0, 0, { 0, 0 } } }; memcpy (&(unscaled->mutex), & _tmp_mutex, sizeof (_tmp_mutex)); } while (0); |
| 553 | unscaled->lock_count = 0; |
| 554 | |
| 555 | unscaled->faces = NULL((void*)0); |
| 556 | |
| 557 | return CAIRO_STATUS_SUCCESS; |
| 558 | } |
| 559 | |
| 560 | /** |
| 561 | * _cairo_ft_unscaled_font_fini: |
| 562 | * |
| 563 | * Free all data associated with a #cairo_ft_unscaled_font_t. |
| 564 | * |
| 565 | * CAUTION: The unscaled->face field must be %NULL before calling this |
| 566 | * function. This is because the #cairo_ft_unscaled_font_t_map keeps a |
| 567 | * count of these faces (font_map->num_open_faces) so it maintains the |
| 568 | * unscaled->face field while it has its lock held. See |
| 569 | * _font_map_release_face_lock_held(). |
| 570 | **/ |
| 571 | static void |
| 572 | _cairo_ft_unscaled_font_fini (cairo_ft_unscaled_font_t *unscaled) |
| 573 | { |
| 574 | assert (unscaled->face == NULL)((void) sizeof ((unscaled->face == ((void*)0)) ? 1 : 0), __extension__ ({ if (unscaled->face == ((void*)0)) ; else __assert_fail ("unscaled->face == NULL", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c" , 574, __extension__ __PRETTY_FUNCTION__); })); |
| 575 | |
| 576 | free (unscaled->filename); |
| 577 | unscaled->filename = NULL((void*)0); |
| 578 | |
| 579 | free (unscaled->variations); |
| 580 | |
| 581 | CAIRO_MUTEX_FINI (unscaled->mutex)pthread_mutex_destroy (&(unscaled->mutex)); |
| 582 | } |
| 583 | |
| 584 | static int |
| 585 | _cairo_ft_unscaled_font_keys_equal (const void *key_a, |
| 586 | const void *key_b) |
| 587 | { |
| 588 | const cairo_ft_unscaled_font_t *unscaled_a = key_a; |
| 589 | const cairo_ft_unscaled_font_t *unscaled_b = key_b; |
| 590 | |
| 591 | if (unscaled_a->id == unscaled_b->id && |
| 592 | unscaled_a->from_face == unscaled_b->from_face) |
| 593 | { |
| 594 | if (unscaled_a->from_face) |
| 595 | return unscaled_a->face == unscaled_b->face && |
| 596 | unscaled_a->face_context == unscaled_b->face_context; |
| 597 | |
| 598 | if (unscaled_a->filename == NULL((void*)0) && unscaled_b->filename == NULL((void*)0)) |
| 599 | return TRUE1; |
| 600 | else if (unscaled_a->filename == NULL((void*)0) || unscaled_b->filename == NULL((void*)0)) |
| 601 | return FALSE0; |
| 602 | else |
| 603 | return (strcmp (unscaled_a->filename, unscaled_b->filename) == 0); |
| 604 | } |
| 605 | |
| 606 | return FALSE0; |
| 607 | } |
| 608 | |
| 609 | /* Finds or creates a #cairo_ft_unscaled_font_t for the filename/id from |
| 610 | * pattern. Returns a new reference to the unscaled font. |
| 611 | */ |
| 612 | static cairo_status_t |
| 613 | _cairo_ft_unscaled_font_create_internal (cairo_bool_t from_face, |
| 614 | char *filename, |
| 615 | int id, |
| 616 | FT_Face font_face, |
| 617 | void *face_context, |
| 618 | cairo_ft_unscaled_font_t **out) |
| 619 | { |
| 620 | cairo_ft_unscaled_font_t key, *unscaled; |
| 621 | cairo_ft_unscaled_font_map_t *font_map; |
| 622 | cairo_status_t status; |
| 623 | |
| 624 | font_map = _cairo_ft_unscaled_font_map_lock (); |
| 625 | if (unlikely (font_map == NULL)(__builtin_expect (!!(font_map == ((void*)0)), 0))) |
| 626 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 627 | |
| 628 | _cairo_ft_unscaled_font_init_key (&key, from_face, filename, id, font_face, face_context); |
| 629 | |
| 630 | /* Return existing unscaled font if it exists in the hash table. */ |
| 631 | unscaled = _cairo_hash_table_lookup (font_map->hash_table, |
| 632 | &key.base.hash_entry); |
| 633 | if (unscaled != NULL((void*)0)) { |
| 634 | _cairo_unscaled_font_reference (&unscaled->base); |
| 635 | goto DONE; |
| 636 | } |
| 637 | |
| 638 | /* Otherwise create it and insert into hash table. */ |
| 639 | unscaled = _cairo_malloc (sizeof (cairo_ft_unscaled_font_t))((sizeof (cairo_ft_unscaled_font_t)) != 0 ? malloc(sizeof (cairo_ft_unscaled_font_t )) : ((void*)0)); |
| 640 | if (unlikely (unscaled == NULL)(__builtin_expect (!!(unscaled == ((void*)0)), 0))) { |
| 641 | status = _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 642 | goto UNWIND_FONT_MAP_LOCK; |
| 643 | } |
| 644 | |
| 645 | status = _cairo_ft_unscaled_font_init (unscaled, from_face, filename, id, font_face, face_context); |
| 646 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 647 | goto UNWIND_UNSCALED_MALLOC; |
| 648 | |
| 649 | assert (unscaled->base.hash_entry.hash == key.base.hash_entry.hash)((void) sizeof ((unscaled->base.hash_entry.hash == key.base .hash_entry.hash) ? 1 : 0), __extension__ ({ if (unscaled-> base.hash_entry.hash == key.base.hash_entry.hash) ; else __assert_fail ("unscaled->base.hash_entry.hash == key.base.hash_entry.hash" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 649 , __extension__ __PRETTY_FUNCTION__); })); |
| 650 | status = _cairo_hash_table_insert (font_map->hash_table, |
| 651 | &unscaled->base.hash_entry); |
| 652 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 653 | goto UNWIND_UNSCALED_FONT_INIT; |
| 654 | |
| 655 | mozilla_AddRefSharedFTFace (face_context); |
| 656 | |
| 657 | DONE: |
| 658 | _cairo_ft_unscaled_font_map_unlock (); |
| 659 | *out = unscaled; |
| 660 | return CAIRO_STATUS_SUCCESS; |
| 661 | |
| 662 | UNWIND_UNSCALED_FONT_INIT: |
| 663 | _cairo_ft_unscaled_font_fini (unscaled); |
| 664 | UNWIND_UNSCALED_MALLOC: |
| 665 | free (unscaled); |
| 666 | UNWIND_FONT_MAP_LOCK: |
| 667 | _cairo_ft_unscaled_font_map_unlock (); |
| 668 | return status; |
| 669 | } |
| 670 | |
| 671 | |
| 672 | #if CAIRO_HAS_FC_FONT1 |
| 673 | static cairo_status_t |
| 674 | _cairo_ft_unscaled_font_create_for_pattern (FcPattern *pattern, |
| 675 | cairo_ft_unscaled_font_t **out) |
| 676 | { |
| 677 | FT_Face font_face = NULL((void*)0); |
| 678 | char *filename = NULL((void*)0); |
| 679 | int id = 0; |
| 680 | FcResult ret; |
| 681 | |
| 682 | ret = FcPatternGetFTFace (pattern, FC_FT_FACE"ftface", 0, &font_face); |
| 683 | if (ret == FcResultMatch) |
| 684 | goto DONE; |
| 685 | if (ret == FcResultOutOfMemory) |
| 686 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 687 | |
| 688 | ret = FcPatternGetString (pattern, FC_FILE"file", 0, (FcChar8 **) &filename); |
| 689 | if (ret == FcResultOutOfMemory) |
| 690 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 691 | if (ret == FcResultMatch) { |
| 692 | if (access (filename, R_OK4) == 0) { |
| 693 | /* If FC_INDEX is not set, we just use 0 */ |
| 694 | ret = FcPatternGetInteger (pattern, FC_INDEX"index", 0, &id); |
| 695 | if (ret == FcResultOutOfMemory) |
| 696 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 697 | |
| 698 | goto DONE; |
| 699 | } else |
| 700 | return _cairo_error (CAIRO_STATUS_FILE_NOT_FOUND); |
| 701 | } |
| 702 | |
| 703 | /* The pattern contains neither a face nor a filename, resolve it later. */ |
| 704 | *out = NULL((void*)0); |
| 705 | return CAIRO_STATUS_SUCCESS; |
| 706 | |
| 707 | DONE: |
| 708 | return _cairo_ft_unscaled_font_create_internal (font_face != NULL((void*)0), |
| 709 | filename, id, font_face, NULL((void*)0), |
| 710 | out); |
| 711 | } |
| 712 | #endif |
| 713 | |
| 714 | static cairo_status_t |
| 715 | _cairo_ft_unscaled_font_create_from_face (FT_Face face, |
| 716 | void *face_context, |
| 717 | cairo_ft_unscaled_font_t **out) |
| 718 | { |
| 719 | return _cairo_ft_unscaled_font_create_internal (TRUE1, NULL((void*)0), face->face_index, face, face_context, out); |
| 720 | } |
| 721 | |
| 722 | static cairo_bool_t |
| 723 | _cairo_ft_unscaled_font_destroy (void *abstract_font) |
| 724 | { |
| 725 | cairo_ft_unscaled_font_t *unscaled = abstract_font; |
| 726 | cairo_ft_unscaled_font_map_t *font_map; |
| 727 | |
| 728 | font_map = _cairo_ft_unscaled_font_map_lock (); |
| 729 | /* All created objects must have been mapped in the font map. */ |
| 730 | assert (font_map != NULL)((void) sizeof ((font_map != ((void*)0)) ? 1 : 0), __extension__ ({ if (font_map != ((void*)0)) ; else __assert_fail ("font_map != NULL" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 730 , __extension__ __PRETTY_FUNCTION__); })); |
| 731 | |
| 732 | if (! _cairo_reference_count_dec_and_test (&unscaled->base.ref_count)(__atomic_fetch_sub(&(&unscaled->base.ref_count)-> ref_count, 1, 5) == 1)) { |
| 733 | /* somebody recreated the font whilst we waited for the lock */ |
| 734 | _cairo_ft_unscaled_font_map_unlock (); |
| 735 | return FALSE0; |
| 736 | } |
| 737 | |
| 738 | _cairo_hash_table_remove (font_map->hash_table, |
| 739 | &unscaled->base.hash_entry); |
| 740 | |
| 741 | if (unscaled->from_face) { |
| 742 | /* See comments in _ft_font_face_destroy about the "zombie" state |
| 743 | * for a _ft_font_face. |
| 744 | */ |
| 745 | if (unscaled->faces && unscaled->faces->unscaled == NULL((void*)0)) { |
| 746 | assert (unscaled->faces->next == NULL)((void) sizeof ((unscaled->faces->next == ((void*)0)) ? 1 : 0), __extension__ ({ if (unscaled->faces->next == ( (void*)0)) ; else __assert_fail ("unscaled->faces->next == NULL" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 746 , __extension__ __PRETTY_FUNCTION__); })); |
| 747 | CAIRO_FT_LOCK (unscaled)((unscaled)->face_context ? (void)mozilla_LockSharedFTFace ((unscaled)->face_context, ((void*)0)) : (void)pthread_mutex_lock (&((unscaled)->mutex))); |
| 748 | cairo_font_face_destroy_moz_cairo_font_face_destroy (&unscaled->faces->base); |
| 749 | CAIRO_FT_UNLOCK (unscaled)((unscaled)->face_context ? mozilla_UnlockSharedFTFace((unscaled )->face_context) : (void)pthread_mutex_unlock (&((unscaled )->mutex))); |
| 750 | } |
| 751 | mozilla_ReleaseSharedFTFace (unscaled->face_context, unscaled); |
| 752 | } else { |
| 753 | _font_map_release_face_lock_held (font_map, unscaled); |
| 754 | } |
| 755 | unscaled->face = NULL((void*)0); |
| 756 | unscaled->face_context = NULL((void*)0); |
| 757 | |
| 758 | _cairo_ft_unscaled_font_map_unlock (); |
| 759 | |
| 760 | _cairo_ft_unscaled_font_fini (unscaled); |
| 761 | return TRUE1; |
| 762 | } |
| 763 | |
| 764 | static cairo_bool_t |
| 765 | _has_unlocked_face (const void *entry) |
| 766 | { |
| 767 | const cairo_ft_unscaled_font_t *unscaled = entry; |
| 768 | |
| 769 | return (!unscaled->from_face && unscaled->lock_count == 0 && unscaled->face); |
| 770 | } |
| 771 | |
| 772 | /* Ensures that an unscaled font has a face object. If we exceed |
| 773 | * MAX_OPEN_FACES, try to close some. |
| 774 | * |
| 775 | * This differs from _cairo_ft_scaled_font_lock_face in that it doesn't |
| 776 | * set the scale on the face, but just returns it at the last scale. |
| 777 | */ |
| 778 | static cairo_warn FT_Face |
| 779 | _cairo_ft_unscaled_font_lock_face (cairo_ft_unscaled_font_t *unscaled) |
| 780 | { |
| 781 | cairo_ft_unscaled_font_map_t *font_map; |
| 782 | FT_Face face = NULL((void*)0); |
| 783 | FT_Error error; |
| 784 | |
| 785 | if (unscaled->face_context) { |
| 786 | if (!mozilla_LockSharedFTFace (unscaled->face_context, unscaled)) { |
| 787 | unscaled->have_scale = FALSE0; |
| 788 | } |
| 789 | } else { |
| 790 | CAIRO_FT_LOCK (unscaled)((unscaled)->face_context ? (void)mozilla_LockSharedFTFace ((unscaled)->face_context, ((void*)0)) : (void)pthread_mutex_lock (&((unscaled)->mutex))); |
| 791 | } |
| 792 | unscaled->lock_count++; |
| 793 | |
| 794 | if (unscaled->face) |
| 795 | return unscaled->face; |
| 796 | |
| 797 | /* If this unscaled font was created from an FT_Face then we just |
| 798 | * returned it above. */ |
| 799 | assert (!unscaled->from_face)((void) sizeof ((!unscaled->from_face) ? 1 : 0), __extension__ ({ if (!unscaled->from_face) ; else __assert_fail ("!unscaled->from_face" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 799 , __extension__ __PRETTY_FUNCTION__); })); |
| 800 | |
| 801 | font_map = _cairo_ft_unscaled_font_map_lock (); |
| 802 | { |
| 803 | assert (font_map != NULL)((void) sizeof ((font_map != ((void*)0)) ? 1 : 0), __extension__ ({ if (font_map != ((void*)0)) ; else __assert_fail ("font_map != NULL" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 803 , __extension__ __PRETTY_FUNCTION__); })); |
| 804 | |
| 805 | while (font_map->num_open_faces >= MAX_OPEN_FACES10) |
| 806 | { |
| 807 | cairo_ft_unscaled_font_t *entry; |
| 808 | |
| 809 | entry = _cairo_hash_table_random_entry (font_map->hash_table, |
| 810 | _has_unlocked_face); |
| 811 | if (entry == NULL((void*)0)) |
| 812 | break; |
| 813 | |
| 814 | _font_map_release_face_lock_held (font_map, entry); |
| 815 | } |
| 816 | } |
| 817 | _cairo_ft_unscaled_font_map_unlock (); |
| 818 | |
| 819 | error = FT_New_Face (font_map->ft_library, |
| 820 | unscaled->filename, |
| 821 | unscaled->id, |
| 822 | &face); |
| 823 | if (error) |
| 824 | { |
| 825 | unscaled->lock_count--; |
| 826 | CAIRO_FT_UNLOCK (unscaled)((unscaled)->face_context ? mozilla_UnlockSharedFTFace((unscaled )->face_context) : (void)pthread_mutex_unlock (&((unscaled )->mutex))); |
| 827 | _cairo_error_throw (_cairo_ft_to_cairo_error (error))do { cairo_status_t status__ = _cairo_error (_cairo_ft_to_cairo_error (error)); (void) status__; } while (0); |
| 828 | return NULL((void*)0); |
| 829 | } |
| 830 | |
| 831 | unscaled->face = face; |
| 832 | |
| 833 | unscaled->have_color = FT_HAS_COLOR (face)( !!( (face)->face_flags & ( 1L << 14 ) ) ) != 0; |
| 834 | unscaled->have_color_set = TRUE1; |
| 835 | |
| 836 | font_map->num_open_faces++; |
| 837 | |
| 838 | return face; |
| 839 | } |
| 840 | |
| 841 | |
| 842 | /* Unlock unscaled font locked with _cairo_ft_unscaled_font_lock_face |
| 843 | */ |
| 844 | static void |
| 845 | _cairo_ft_unscaled_font_unlock_face (cairo_ft_unscaled_font_t *unscaled) |
| 846 | { |
| 847 | assert (unscaled->lock_count > 0)((void) sizeof ((unscaled->lock_count > 0) ? 1 : 0), __extension__ ({ if (unscaled->lock_count > 0) ; else __assert_fail ( "unscaled->lock_count > 0", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c" , 847, __extension__ __PRETTY_FUNCTION__); })); |
| 848 | |
| 849 | unscaled->lock_count--; |
| 850 | |
| 851 | CAIRO_FT_UNLOCK (unscaled)((unscaled)->face_context ? mozilla_UnlockSharedFTFace((unscaled )->face_context) : (void)pthread_mutex_unlock (&((unscaled )->mutex))); |
| 852 | } |
| 853 | |
| 854 | |
| 855 | static cairo_status_t |
| 856 | _compute_transform (cairo_ft_font_transform_t *sf, |
| 857 | cairo_matrix_t *scale, |
| 858 | cairo_ft_unscaled_font_t *unscaled) |
| 859 | { |
| 860 | cairo_status_t status; |
| 861 | double x_scale, y_scale; |
| 862 | cairo_matrix_t normalized = *scale; |
| 863 | |
| 864 | /* The font matrix has x and y "scale" components which we extract and |
| 865 | * use as character scale values. These influence the way freetype |
| 866 | * chooses hints, as well as selecting different bitmaps in |
| 867 | * hand-rendered fonts. We also copy the normalized matrix to |
| 868 | * freetype's transformation. |
| 869 | */ |
| 870 | |
| 871 | status = _cairo_matrix_compute_basis_scale_factors (scale, |
| 872 | &x_scale, &y_scale, |
| 873 | 1); |
| 874 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 875 | return status; |
| 876 | |
| 877 | /* FreeType docs say this about x_scale and y_scale: |
| 878 | * "A character width or height smaller than 1pt is set to 1pt;" |
| 879 | * So, we cap them from below at 1.0 and let the FT transform |
| 880 | * take care of sub-1.0 scaling. */ |
| 881 | if (x_scale < 1.0) |
| 882 | x_scale = 1.0; |
| 883 | if (y_scale < 1.0) |
| 884 | y_scale = 1.0; |
| 885 | |
| 886 | if (unscaled && (unscaled->face->face_flags & FT_FACE_FLAG_SCALABLE( 1L << 0 )) == 0) { |
| 887 | double min_distance = DBL_MAX1.7976931348623157e+308; |
| 888 | cairo_bool_t magnify = TRUE1; |
| 889 | int i; |
| 890 | double best_x_size = 0; |
| 891 | double best_y_size = 0; |
| 892 | |
| 893 | for (i = 0; i < unscaled->face->num_fixed_sizes; i++) { |
| 894 | double x_size = unscaled->face->available_sizes[i].x_ppem / 64.; |
| 895 | double y_size = unscaled->face->available_sizes[i].y_ppem / 64.; |
| 896 | double distance = y_size - y_scale; |
| 897 | |
| 898 | /* |
| 899 | * distance is positive if current strike is larger than desired |
| 900 | * size, and negative if smaller. |
| 901 | * |
| 902 | * We like to prefer down-scaling to upscaling. |
| 903 | */ |
| 904 | |
| 905 | if ((magnify && distance >= 0) || fabs (distance) <= min_distance) { |
| 906 | magnify = distance < 0; |
| 907 | min_distance = fabs (distance); |
| 908 | best_x_size = x_size; |
| 909 | best_y_size = y_size; |
| 910 | } |
| 911 | } |
| 912 | |
| 913 | x_scale = best_x_size; |
| 914 | y_scale = best_y_size; |
| 915 | } |
| 916 | |
| 917 | sf->x_scale = x_scale; |
| 918 | sf->y_scale = y_scale; |
| 919 | |
| 920 | cairo_matrix_scale_moz_cairo_matrix_scale (&normalized, 1.0 / x_scale, 1.0 / y_scale); |
| 921 | |
| 922 | _cairo_matrix_get_affine (&normalized, |
| 923 | &sf->shape[0][0], &sf->shape[0][1], |
| 924 | &sf->shape[1][0], &sf->shape[1][1], |
| 925 | NULL((void*)0), NULL((void*)0)); |
| 926 | |
| 927 | return CAIRO_STATUS_SUCCESS; |
| 928 | } |
| 929 | |
| 930 | /* Temporarily scales an unscaled font to the give scale. We catch |
| 931 | * scaling to the same size, since changing a FT_Face is expensive. |
| 932 | */ |
| 933 | static cairo_status_t |
| 934 | _cairo_ft_unscaled_font_set_scale (cairo_ft_unscaled_font_t *unscaled, |
| 935 | cairo_matrix_t *scale) |
| 936 | { |
| 937 | cairo_status_t status; |
| 938 | cairo_ft_font_transform_t sf; |
| 939 | FT_Matrix mat; |
| 940 | FT_Error error; |
| 941 | |
| 942 | assert (unscaled->face != NULL)((void) sizeof ((unscaled->face != ((void*)0)) ? 1 : 0), __extension__ ({ if (unscaled->face != ((void*)0)) ; else __assert_fail ("unscaled->face != NULL", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c" , 942, __extension__ __PRETTY_FUNCTION__); })); |
| 943 | |
| 944 | if (unscaled->have_scale && |
| 945 | scale->xx == unscaled->current_scale.xx && |
| 946 | scale->yx == unscaled->current_scale.yx && |
| 947 | scale->xy == unscaled->current_scale.xy && |
| 948 | scale->yy == unscaled->current_scale.yy) |
| 949 | return CAIRO_STATUS_SUCCESS; |
| 950 | |
| 951 | unscaled->have_scale = TRUE1; |
| 952 | unscaled->current_scale = *scale; |
| 953 | |
| 954 | status = _compute_transform (&sf, scale, unscaled); |
| 955 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 956 | return status; |
| 957 | |
| 958 | unscaled->x_scale = sf.x_scale; |
| 959 | unscaled->y_scale = sf.y_scale; |
| 960 | |
| 961 | mat.xx = DOUBLE_TO_16_16(sf.shape[0][0])((FT_Fixed)((sf.shape[0][0]) * 65536.0)); |
| 962 | mat.yx = - DOUBLE_TO_16_16(sf.shape[0][1])((FT_Fixed)((sf.shape[0][1]) * 65536.0)); |
| 963 | mat.xy = - DOUBLE_TO_16_16(sf.shape[1][0])((FT_Fixed)((sf.shape[1][0]) * 65536.0)); |
| 964 | mat.yy = DOUBLE_TO_16_16(sf.shape[1][1])((FT_Fixed)((sf.shape[1][1]) * 65536.0)); |
| 965 | |
| 966 | unscaled->have_shape = (mat.xx != 0x10000 || |
| 967 | mat.yx != 0x00000 || |
| 968 | mat.xy != 0x00000 || |
| 969 | mat.yy != 0x10000); |
| 970 | |
| 971 | unscaled->Current_Shape = mat; |
| 972 | cairo_matrix_init_moz_cairo_matrix_init (&unscaled->current_shape, |
| 973 | sf.shape[0][0], sf.shape[0][1], |
| 974 | sf.shape[1][0], sf.shape[1][1], |
| 975 | 0.0, 0.0); |
| 976 | |
| 977 | FT_Set_Transform(unscaled->face, &mat, NULL((void*)0)); |
| 978 | |
| 979 | error = FT_Set_Char_Size (unscaled->face, |
| 980 | sf.x_scale * 64.0 + .5, |
| 981 | sf.y_scale * 64.0 + .5, |
| 982 | 0, 0); |
| 983 | if (error) |
| 984 | return _cairo_error (_cairo_ft_to_cairo_error (error)); |
| 985 | |
| 986 | return CAIRO_STATUS_SUCCESS; |
| 987 | } |
| 988 | |
| 989 | /* we sometimes need to convert the glyph bitmap in a FT_GlyphSlot |
| 990 | * into a different format. For example, we want to convert a |
| 991 | * FT_PIXEL_MODE_LCD or FT_PIXEL_MODE_LCD_V bitmap into a 32-bit |
| 992 | * ARGB or ABGR bitmap. |
| 993 | * |
| 994 | * this function prepares a target descriptor for this operation. |
| 995 | * |
| 996 | * input :: target bitmap descriptor. The function will set its |
| 997 | * 'width', 'rows' and 'pitch' fields, and only these |
| 998 | * |
| 999 | * slot :: the glyph slot containing the source bitmap. this |
| 1000 | * function assumes that slot->format == FT_GLYPH_FORMAT_BITMAP |
| 1001 | * |
| 1002 | * mode :: the requested final rendering mode. supported values are |
| 1003 | * MONO, NORMAL (i.e. gray), LCD and LCD_V |
| 1004 | * |
| 1005 | * the function returns the size in bytes of the corresponding buffer, |
| 1006 | * it's up to the caller to allocate the corresponding memory block |
| 1007 | * before calling _fill_xrender_bitmap |
| 1008 | * |
| 1009 | * it also returns -1 in case of error (e.g. incompatible arguments, |
| 1010 | * like trying to convert a gray bitmap into a monochrome one) |
| 1011 | */ |
| 1012 | static int |
| 1013 | _compute_xrender_bitmap_size(FT_Bitmap *target, |
| 1014 | FT_GlyphSlot slot, |
| 1015 | FT_Render_Mode mode) |
| 1016 | { |
| 1017 | FT_Bitmap *ftbit; |
| 1018 | int width, height, pitch; |
| 1019 | |
| 1020 | if (slot->format != FT_GLYPH_FORMAT_BITMAP) |
| 1021 | return -1; |
| 1022 | |
| 1023 | /* compute the size of the final bitmap */ |
| 1024 | ftbit = &slot->bitmap; |
| 1025 | |
| 1026 | width = ftbit->width; |
| 1027 | height = ftbit->rows; |
| 1028 | pitch = (width + 3) & ~3; |
| 1029 | |
| 1030 | switch (ftbit->pixel_mode) { |
| 1031 | case FT_PIXEL_MODE_MONO: |
| 1032 | if (mode == FT_RENDER_MODE_MONO) { |
| 1033 | pitch = (((width + 31) & ~31) >> 3); |
| 1034 | break; |
| 1035 | } |
| 1036 | /* fall-through */ |
| 1037 | |
| 1038 | case FT_PIXEL_MODE_GRAY: |
| 1039 | if (mode == FT_RENDER_MODE_LCD || |
| 1040 | mode == FT_RENDER_MODE_LCD_V) |
| 1041 | { |
| 1042 | /* each pixel is replicated into a 32-bit ARGB value */ |
| 1043 | pitch = width * 4; |
| 1044 | } |
| 1045 | break; |
| 1046 | |
| 1047 | case FT_PIXEL_MODE_LCD: |
| 1048 | if (mode != FT_RENDER_MODE_LCD) |
| 1049 | return -1; |
| 1050 | |
| 1051 | /* horz pixel triplets are packed into 32-bit ARGB values */ |
| 1052 | width /= 3; |
| 1053 | pitch = width * 4; |
| 1054 | break; |
| 1055 | |
| 1056 | case FT_PIXEL_MODE_LCD_V: |
| 1057 | if (mode != FT_RENDER_MODE_LCD_V) |
| 1058 | return -1; |
| 1059 | |
| 1060 | /* vert pixel triplets are packed into 32-bit ARGB values */ |
| 1061 | height /= 3; |
| 1062 | pitch = width * 4; |
| 1063 | break; |
| 1064 | |
| 1065 | #ifdef FT_LOAD_COLOR( 1L << 20 ) |
| 1066 | case FT_PIXEL_MODE_BGRA: |
| 1067 | /* each pixel is replicated into a 32-bit ARGB value */ |
| 1068 | pitch = width * 4; |
| 1069 | break; |
| 1070 | #endif |
| 1071 | |
| 1072 | default: /* unsupported source format */ |
| 1073 | return -1; |
| 1074 | } |
| 1075 | |
| 1076 | target->width = width; |
| 1077 | target->rows = height; |
| 1078 | target->pitch = pitch; |
| 1079 | target->buffer = NULL((void*)0); |
| 1080 | |
| 1081 | return pitch * height; |
| 1082 | } |
| 1083 | |
| 1084 | /* this functions converts the glyph bitmap found in a FT_GlyphSlot |
| 1085 | * into a different format (see _compute_xrender_bitmap_size) |
| 1086 | * |
| 1087 | * you should call this function after _compute_xrender_bitmap_size |
| 1088 | * |
| 1089 | * target :: target bitmap descriptor. Note that its 'buffer' pointer |
| 1090 | * must point to memory allocated by the caller |
| 1091 | * |
| 1092 | * slot :: the glyph slot containing the source bitmap |
| 1093 | * |
| 1094 | * mode :: the requested final rendering mode |
| 1095 | * |
| 1096 | * bgr :: boolean, set if BGR or VBGR pixel ordering is needed |
| 1097 | */ |
| 1098 | static void |
| 1099 | _fill_xrender_bitmap(FT_Bitmap *target, |
| 1100 | FT_GlyphSlot slot, |
| 1101 | FT_Render_Mode mode, |
| 1102 | int bgr) |
| 1103 | { |
| 1104 | FT_Bitmap *ftbit = &slot->bitmap; |
| 1105 | unsigned char *srcLine = ftbit->buffer; |
| 1106 | unsigned char *dstLine = target->buffer; |
| 1107 | int src_pitch = ftbit->pitch; |
| 1108 | int width = target->width; |
| 1109 | int height = target->rows; |
| 1110 | int pitch = target->pitch; |
| 1111 | int subpixel; |
| 1112 | int h; |
| 1113 | |
| 1114 | subpixel = (mode == FT_RENDER_MODE_LCD || |
| 1115 | mode == FT_RENDER_MODE_LCD_V); |
| 1116 | |
| 1117 | if (src_pitch < 0) |
| 1118 | srcLine -= src_pitch * (ftbit->rows - 1); |
| 1119 | |
| 1120 | target->pixel_mode = ftbit->pixel_mode; |
| 1121 | |
| 1122 | switch (ftbit->pixel_mode) { |
| 1123 | case FT_PIXEL_MODE_MONO: |
| 1124 | if (subpixel) { |
| 1125 | /* convert mono to ARGB32 values */ |
| 1126 | |
| 1127 | for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) { |
| 1128 | int x; |
| 1129 | |
| 1130 | for (x = 0; x < width; x++) { |
| 1131 | if (srcLine[(x >> 3)] & (0x80 >> (x & 7))) |
| 1132 | ((unsigned int *) dstLine)[x] = 0xffffffffU; |
| 1133 | } |
| 1134 | } |
| 1135 | target->pixel_mode = FT_PIXEL_MODE_LCD; |
| 1136 | |
| 1137 | } else if (mode == FT_RENDER_MODE_NORMAL) { |
| 1138 | /* convert mono to 8-bit gray */ |
| 1139 | |
| 1140 | for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) { |
| 1141 | int x; |
| 1142 | |
| 1143 | for (x = 0; x < width; x++) { |
| 1144 | if (srcLine[(x >> 3)] & (0x80 >> (x & 7))) |
| 1145 | dstLine[x] = 0xff; |
| 1146 | } |
| 1147 | } |
| 1148 | target->pixel_mode = FT_PIXEL_MODE_GRAY; |
| 1149 | |
| 1150 | } else { |
| 1151 | /* copy mono to mono */ |
| 1152 | |
| 1153 | int bytes = (width + 7) >> 3; |
| 1154 | |
| 1155 | for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) |
| 1156 | memcpy (dstLine, srcLine, bytes); |
| 1157 | } |
| 1158 | break; |
| 1159 | |
| 1160 | case FT_PIXEL_MODE_GRAY: |
| 1161 | if (subpixel) { |
| 1162 | /* convert gray to ARGB32 values */ |
| 1163 | |
| 1164 | for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) { |
| 1165 | int x; |
| 1166 | unsigned int *dst = (unsigned int *) dstLine; |
| 1167 | |
| 1168 | for (x = 0; x < width; x++) { |
| 1169 | unsigned int pix = srcLine[x]; |
| 1170 | |
| 1171 | pix |= (pix << 8); |
| 1172 | pix |= (pix << 16); |
| 1173 | |
| 1174 | dst[x] = pix; |
| 1175 | } |
| 1176 | } |
| 1177 | target->pixel_mode = FT_PIXEL_MODE_LCD; |
| 1178 | } else { |
| 1179 | /* copy gray into gray */ |
| 1180 | |
| 1181 | for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) |
| 1182 | memcpy (dstLine, srcLine, width); |
| 1183 | } |
| 1184 | break; |
| 1185 | |
| 1186 | case FT_PIXEL_MODE_LCD: |
| 1187 | if (!bgr) { |
| 1188 | /* convert horizontal RGB into ARGB32 */ |
| 1189 | |
| 1190 | for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) { |
| 1191 | int x; |
| 1192 | unsigned char *src = srcLine; |
| 1193 | unsigned int *dst = (unsigned int *) dstLine; |
| 1194 | |
| 1195 | for (x = 0; x < width; x++, src += 3) { |
| 1196 | unsigned int pix; |
| 1197 | |
| 1198 | pix = ((unsigned int)src[0] << 16) | |
| 1199 | ((unsigned int)src[1] << 8) | |
| 1200 | ((unsigned int)src[2] ) | |
| 1201 | ((unsigned int)src[1] << 24) ; |
| 1202 | |
| 1203 | dst[x] = pix; |
| 1204 | } |
| 1205 | } |
| 1206 | } else { |
| 1207 | /* convert horizontal BGR into ARGB32 */ |
| 1208 | |
| 1209 | for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) { |
| 1210 | |
| 1211 | int x; |
| 1212 | unsigned char *src = srcLine; |
| 1213 | unsigned int *dst = (unsigned int *) dstLine; |
| 1214 | |
| 1215 | for (x = 0; x < width; x++, src += 3) { |
| 1216 | unsigned int pix; |
| 1217 | |
| 1218 | pix = ((unsigned int)src[2] << 16) | |
| 1219 | ((unsigned int)src[1] << 8) | |
| 1220 | ((unsigned int)src[0] ) | |
| 1221 | ((unsigned int)src[1] << 24) ; |
| 1222 | |
| 1223 | dst[x] = pix; |
| 1224 | } |
| 1225 | } |
| 1226 | } |
| 1227 | break; |
| 1228 | |
| 1229 | case FT_PIXEL_MODE_LCD_V: |
| 1230 | /* convert vertical RGB into ARGB32 */ |
| 1231 | if (!bgr) { |
| 1232 | |
| 1233 | for (h = height; h > 0; h--, srcLine += 3 * src_pitch, dstLine += pitch) { |
| 1234 | int x; |
| 1235 | unsigned char* src = srcLine; |
| 1236 | unsigned int* dst = (unsigned int *) dstLine; |
| 1237 | |
| 1238 | for (x = 0; x < width; x++, src += 1) { |
| 1239 | unsigned int pix; |
| 1240 | pix = ((unsigned int)src[0] << 16) | |
| 1241 | ((unsigned int)src[src_pitch] << 8) | |
| 1242 | ((unsigned int)src[src_pitch*2] ) | |
| 1243 | ((unsigned int)src[src_pitch] << 24) ; |
| 1244 | dst[x] = pix; |
| 1245 | } |
| 1246 | } |
| 1247 | } else { |
| 1248 | |
| 1249 | for (h = height; h > 0; h--, srcLine += 3*src_pitch, dstLine += pitch) { |
| 1250 | int x; |
| 1251 | unsigned char *src = srcLine; |
| 1252 | unsigned int *dst = (unsigned int *) dstLine; |
| 1253 | |
| 1254 | for (x = 0; x < width; x++, src += 1) { |
| 1255 | unsigned int pix; |
| 1256 | |
| 1257 | pix = ((unsigned int)src[src_pitch * 2] << 16) | |
| 1258 | ((unsigned int)src[src_pitch] << 8) | |
| 1259 | ((unsigned int)src[0] ) | |
| 1260 | ((unsigned int)src[src_pitch] << 24) ; |
| 1261 | |
| 1262 | dst[x] = pix; |
| 1263 | } |
| 1264 | } |
| 1265 | } |
| 1266 | break; |
| 1267 | |
| 1268 | #ifdef FT_LOAD_COLOR( 1L << 20 ) |
| 1269 | case FT_PIXEL_MODE_BGRA: |
| 1270 | for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) |
| 1271 | memcpy (dstLine, srcLine, (size_t)width * 4); |
| 1272 | break; |
| 1273 | #endif |
| 1274 | |
| 1275 | default: |
| 1276 | assert (0)((void) sizeof ((0) ? 1 : 0), __extension__ ({ if (0) ; else __assert_fail ("0", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c" , 1276, __extension__ __PRETTY_FUNCTION__); })); |
| 1277 | } |
| 1278 | } |
| 1279 | |
| 1280 | |
| 1281 | /* Fills in val->image with an image surface created from @bitmap |
| 1282 | */ |
| 1283 | static cairo_status_t |
| 1284 | _get_bitmap_surface (FT_Bitmap *bitmap, |
| 1285 | FT_Library library, |
| 1286 | cairo_bool_t own_buffer, |
| 1287 | cairo_font_options_t *font_options, |
| 1288 | cairo_image_surface_t **surface) |
| 1289 | { |
| 1290 | unsigned int width, height; |
| 1291 | unsigned char *data; |
| 1292 | int format = CAIRO_FORMAT_A8; |
| 1293 | int stride; |
| 1294 | cairo_image_surface_t *image; |
| 1295 | cairo_bool_t component_alpha = FALSE0; |
| 1296 | |
| 1297 | width = bitmap->width; |
| 1298 | height = bitmap->rows; |
| 1299 | |
| 1300 | if (width == 0 || height == 0) { |
| 1301 | *surface = (cairo_image_surface_t *) |
| 1302 | cairo_image_surface_create_for_data_moz_cairo_image_surface_create_for_data (NULL((void*)0), format, 0, 0, 0); |
| 1303 | return (*surface)->base.status; |
| 1304 | } |
| 1305 | |
| 1306 | switch (bitmap->pixel_mode) { |
| 1307 | case FT_PIXEL_MODE_MONO: |
| 1308 | stride = (((width + 31) & ~31) >> 3); |
| 1309 | if (own_buffer) { |
| 1310 | data = bitmap->buffer; |
| 1311 | assert (stride == bitmap->pitch)((void) sizeof ((stride == bitmap->pitch) ? 1 : 0), __extension__ ({ if (stride == bitmap->pitch) ; else __assert_fail ("stride == bitmap->pitch" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 1311 , __extension__ __PRETTY_FUNCTION__); })); |
| 1312 | } else { |
| 1313 | data = _cairo_malloc_ab (height, stride); |
| 1314 | if (!data) |
| 1315 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 1316 | |
| 1317 | if (stride == bitmap->pitch) { |
| 1318 | memcpy (data, bitmap->buffer, (size_t)stride * height); |
| 1319 | } else { |
| 1320 | int i; |
| 1321 | unsigned char *source, *dest; |
| 1322 | |
| 1323 | source = bitmap->buffer; |
| 1324 | dest = data; |
| 1325 | for (i = height; i; i--) { |
| 1326 | memcpy (dest, source, bitmap->pitch); |
| 1327 | memset (dest + bitmap->pitch, '\0', stride - bitmap->pitch); |
| 1328 | |
| 1329 | source += bitmap->pitch; |
| 1330 | dest += stride; |
| 1331 | } |
| 1332 | } |
| 1333 | } |
| 1334 | |
| 1335 | #ifndef WORDS_BIGENDIAN |
| 1336 | { |
| 1337 | uint8_t *d = data; |
| 1338 | int count = stride * height; |
| 1339 | |
| 1340 | while (count--) { |
| 1341 | *d = CAIRO_BITSWAP8 (*d)((((*d) * 0x0802LU & 0x22110LU) | ((*d) * 0x8020LU & 0x88440LU )) * 0x10101LU >> 16); |
| 1342 | d++; |
| 1343 | } |
| 1344 | } |
| 1345 | #endif |
| 1346 | format = CAIRO_FORMAT_A1; |
| 1347 | break; |
| 1348 | |
| 1349 | case FT_PIXEL_MODE_LCD: |
| 1350 | case FT_PIXEL_MODE_LCD_V: |
| 1351 | case FT_PIXEL_MODE_GRAY: |
| 1352 | if (font_options->antialias != CAIRO_ANTIALIAS_SUBPIXEL || |
| 1353 | bitmap->pixel_mode == FT_PIXEL_MODE_GRAY) |
| 1354 | { |
| 1355 | stride = bitmap->pitch; |
| 1356 | |
| 1357 | /* We don't support stride not multiple of 4. */ |
| 1358 | if (stride & 3) |
| 1359 | { |
| 1360 | assert (!own_buffer)((void) sizeof ((!own_buffer) ? 1 : 0), __extension__ ({ if ( !own_buffer) ; else __assert_fail ("!own_buffer", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c" , 1360, __extension__ __PRETTY_FUNCTION__); })); |
| 1361 | goto convert; |
| 1362 | } |
| 1363 | |
| 1364 | if (own_buffer) { |
| 1365 | data = bitmap->buffer; |
| 1366 | } else { |
| 1367 | data = _cairo_malloc_ab (height, stride); |
| 1368 | if (!data) |
| 1369 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 1370 | |
| 1371 | memcpy (data, bitmap->buffer, (size_t)stride * height); |
| 1372 | } |
| 1373 | |
| 1374 | format = CAIRO_FORMAT_A8; |
| 1375 | } else { |
| 1376 | data = bitmap->buffer; |
| 1377 | stride = bitmap->pitch; |
| 1378 | format = CAIRO_FORMAT_ARGB32; |
| 1379 | component_alpha = TRUE1; |
| 1380 | } |
| 1381 | break; |
| 1382 | #ifdef FT_LOAD_COLOR( 1L << 20 ) |
| 1383 | case FT_PIXEL_MODE_BGRA: |
| 1384 | stride = width * 4; |
| 1385 | if (own_buffer) { |
| 1386 | data = bitmap->buffer; |
| 1387 | } else { |
| 1388 | data = _cairo_malloc_ab (height, stride); |
| 1389 | if (!data) |
| 1390 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 1391 | |
| 1392 | memcpy (data, bitmap->buffer, (size_t)stride * height); |
| 1393 | } |
| 1394 | |
| 1395 | if (!_cairo_is_little_endian ()) |
| 1396 | { |
| 1397 | /* Byteswap. */ |
| 1398 | unsigned int i, count = height * width; |
| 1399 | uint32_t *p = (uint32_t *) data; |
| 1400 | for (i = 0; i < count; i++) |
| 1401 | p[i] = bswap_32 (p[i])__bswap_32 (p[i]); |
| 1402 | } |
| 1403 | format = CAIRO_FORMAT_ARGB32; |
| 1404 | break; |
| 1405 | #endif |
| 1406 | case FT_PIXEL_MODE_GRAY2: |
| 1407 | case FT_PIXEL_MODE_GRAY4: |
| 1408 | convert: |
| 1409 | if (!own_buffer && library) |
| 1410 | { |
| 1411 | /* This is pretty much the only case that we can get in here. */ |
| 1412 | /* Convert to 8bit grayscale. */ |
| 1413 | |
| 1414 | FT_Bitmap tmp; |
| 1415 | FT_Int align; |
| 1416 | FT_Error error; |
| 1417 | |
| 1418 | format = CAIRO_FORMAT_A8; |
| 1419 | |
| 1420 | align = cairo_format_stride_for_width_moz_cairo_format_stride_for_width (format, bitmap->width); |
| 1421 | |
| 1422 | FT_Bitmap_New( &tmp ); |
| 1423 | |
| 1424 | error = FT_Bitmap_Convert( library, bitmap, &tmp, align ); |
| 1425 | if (error) |
| 1426 | return _cairo_error (_cairo_ft_to_cairo_error (error)); |
| 1427 | |
| 1428 | FT_Bitmap_Done( library, bitmap ); |
| 1429 | *bitmap = tmp; |
| 1430 | |
| 1431 | stride = bitmap->pitch; |
| 1432 | data = _cairo_malloc_ab (height, stride); |
| 1433 | if (!data) |
| 1434 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 1435 | |
| 1436 | if (bitmap->num_grays != 256) |
| 1437 | { |
| 1438 | unsigned int x, y; |
| 1439 | unsigned int mul = 255 / (bitmap->num_grays - 1); |
| 1440 | FT_Byte *p = bitmap->buffer; |
| 1441 | for (y = 0; y < height; y++) { |
| 1442 | for (x = 0; x < width; x++) |
| 1443 | p[x] *= mul; |
| 1444 | p += bitmap->pitch; |
| 1445 | } |
| 1446 | } |
| 1447 | |
| 1448 | memcpy (data, bitmap->buffer, (size_t)stride * height); |
| 1449 | break; |
| 1450 | } |
| 1451 | /* fall through */ |
| 1452 | /* These could be triggered by very rare types of TrueType fonts */ |
| 1453 | default: |
| 1454 | if (own_buffer) |
| 1455 | free (bitmap->buffer); |
| 1456 | return _cairo_error (CAIRO_STATUS_INVALID_FORMAT); |
| 1457 | } |
| 1458 | |
| 1459 | /* XXX */ |
| 1460 | *surface = image = (cairo_image_surface_t *) |
| 1461 | cairo_image_surface_create_for_data_moz_cairo_image_surface_create_for_data (data, |
| 1462 | format, |
| 1463 | width, height, stride); |
| 1464 | if (image->base.status) { |
| 1465 | free (data); |
| 1466 | return (*surface)->base.status; |
| 1467 | } |
| 1468 | |
| 1469 | if (component_alpha) |
| 1470 | pixman_image_set_component_alpha_moz_pixman_image_set_component_alpha (image->pixman_image, TRUE1); |
| 1471 | |
| 1472 | _cairo_image_surface_assume_ownership_of_data (image); |
| 1473 | |
| 1474 | _cairo_debug_check_image_surface_is_defined (&image->base); |
| 1475 | |
| 1476 | return CAIRO_STATUS_SUCCESS; |
| 1477 | } |
| 1478 | |
| 1479 | /* Converts an outline FT_GlyphSlot into an image |
| 1480 | * |
| 1481 | * This could go through _render_glyph_bitmap as well, letting |
| 1482 | * FreeType convert the outline to a bitmap, but doing it ourselves |
| 1483 | * has two minor advantages: first, we save a copy of the bitmap |
| 1484 | * buffer: we can directly use the buffer that FreeType renders |
| 1485 | * into. |
| 1486 | * |
| 1487 | * Second, it may help when we add support for subpixel |
| 1488 | * rendering: the Xft code does it this way. (Keith thinks that |
| 1489 | * it may also be possible to get the subpixel rendering with |
| 1490 | * FT_Render_Glyph: something worth looking into in more detail |
| 1491 | * when we add subpixel support. If so, we may want to eliminate |
| 1492 | * this version of the code path entirely. |
| 1493 | */ |
| 1494 | static cairo_status_t |
| 1495 | _render_glyph_outline (FT_Face face, |
| 1496 | cairo_font_options_t *font_options, |
| 1497 | cairo_image_surface_t **surface) |
| 1498 | { |
| 1499 | int rgba = FC_RGBA_UNKNOWN0; |
| 1500 | int lcd_filter = FT_LCD_FILTER_DEFAULT1; |
| 1501 | FT_GlyphSlot glyphslot = face->glyph; |
| 1502 | FT_Outline *outline = &glyphslot->outline; |
| 1503 | FT_Bitmap bitmap; |
| 1504 | FT_BBox cbox; |
| 1505 | unsigned int width, height; |
| 1506 | cairo_status_t status; |
| 1507 | FT_Error error; |
| 1508 | FT_Library library = glyphslot->library; |
| 1509 | FT_Render_Mode render_mode = FT_RENDER_MODE_NORMAL; |
| 1510 | |
| 1511 | switch (font_options->antialias) { |
| 1512 | case CAIRO_ANTIALIAS_NONE: |
| 1513 | render_mode = FT_RENDER_MODE_MONO; |
| 1514 | break; |
| 1515 | |
| 1516 | case CAIRO_ANTIALIAS_SUBPIXEL: |
| 1517 | case CAIRO_ANTIALIAS_BEST: |
| 1518 | switch (font_options->subpixel_order) { |
| 1519 | case CAIRO_SUBPIXEL_ORDER_DEFAULT: |
| 1520 | case CAIRO_SUBPIXEL_ORDER_RGB: |
| 1521 | case CAIRO_SUBPIXEL_ORDER_BGR: |
| 1522 | render_mode = FT_RENDER_MODE_LCD; |
| 1523 | break; |
| 1524 | |
| 1525 | case CAIRO_SUBPIXEL_ORDER_VRGB: |
| 1526 | case CAIRO_SUBPIXEL_ORDER_VBGR: |
| 1527 | render_mode = FT_RENDER_MODE_LCD_V; |
| 1528 | break; |
| 1529 | } |
| 1530 | |
| 1531 | switch (font_options->lcd_filter) { |
| 1532 | case CAIRO_LCD_FILTER_NONE: |
| 1533 | lcd_filter = FT_LCD_FILTER_NONE0; |
| 1534 | break; |
| 1535 | case CAIRO_LCD_FILTER_INTRA_PIXEL: |
| 1536 | lcd_filter = FT_LCD_FILTER_LEGACY16; |
Value stored to 'lcd_filter' is never read | |
| 1537 | break; |
| 1538 | case CAIRO_LCD_FILTER_FIR3: |
| 1539 | lcd_filter = FT_LCD_FILTER_LIGHT2; |
| 1540 | break; |
| 1541 | case CAIRO_LCD_FILTER_DEFAULT: |
| 1542 | case CAIRO_LCD_FILTER_FIR5: |
| 1543 | lcd_filter = FT_LCD_FILTER_DEFAULT1; |
| 1544 | break; |
| 1545 | } |
| 1546 | |
| 1547 | break; |
| 1548 | |
| 1549 | case CAIRO_ANTIALIAS_DEFAULT: |
| 1550 | case CAIRO_ANTIALIAS_GRAY: |
| 1551 | case CAIRO_ANTIALIAS_GOOD: |
| 1552 | case CAIRO_ANTIALIAS_FAST: |
| 1553 | render_mode = FT_RENDER_MODE_NORMAL; |
| 1554 | } |
| 1555 | |
| 1556 | FT_Outline_Get_CBox (outline, &cbox); |
| 1557 | |
| 1558 | cbox.xMin &= -64; |
| 1559 | cbox.yMin &= -64; |
| 1560 | cbox.xMax = (cbox.xMax + 63) & -64; |
| 1561 | cbox.yMax = (cbox.yMax + 63) & -64; |
| 1562 | |
| 1563 | width = (unsigned int) ((cbox.xMax - cbox.xMin) >> 6); |
| 1564 | height = (unsigned int) ((cbox.yMax - cbox.yMin) >> 6); |
| 1565 | |
| 1566 | if (width * height == 0) { |
| 1567 | cairo_format_t format; |
| 1568 | /* Looks like fb handles zero-sized images just fine */ |
| 1569 | switch (render_mode) { |
| 1570 | case FT_RENDER_MODE_MONO: |
| 1571 | format = CAIRO_FORMAT_A1; |
| 1572 | break; |
| 1573 | case FT_RENDER_MODE_LCD: |
| 1574 | case FT_RENDER_MODE_LCD_V: |
| 1575 | format= CAIRO_FORMAT_ARGB32; |
| 1576 | break; |
| 1577 | case FT_RENDER_MODE_LIGHT: |
| 1578 | case FT_RENDER_MODE_NORMAL: |
| 1579 | case FT_RENDER_MODE_MAX: |
| 1580 | #if HAVE_FT_RENDER_MODE_SDF1 |
| 1581 | case FT_RENDER_MODE_SDF: |
| 1582 | #endif |
| 1583 | default: |
| 1584 | format = CAIRO_FORMAT_A8; |
| 1585 | break; |
| 1586 | } |
| 1587 | |
| 1588 | (*surface) = (cairo_image_surface_t *) |
| 1589 | cairo_image_surface_create_for_data_moz_cairo_image_surface_create_for_data (NULL((void*)0), format, 0, 0, 0); |
| 1590 | pixman_image_set_component_alpha_moz_pixman_image_set_component_alpha ((*surface)->pixman_image, TRUE1); |
| 1591 | if ((*surface)->base.status) |
| 1592 | return (*surface)->base.status; |
| 1593 | } else { |
| 1594 | |
| 1595 | int bitmap_size; |
| 1596 | |
| 1597 | switch (render_mode) { |
| 1598 | case FT_RENDER_MODE_LCD: |
| 1599 | if (font_options->subpixel_order == CAIRO_SUBPIXEL_ORDER_BGR) |
| 1600 | rgba = FC_RGBA_BGR2; |
| 1601 | else |
| 1602 | rgba = FC_RGBA_RGB1; |
| 1603 | break; |
| 1604 | |
| 1605 | case FT_RENDER_MODE_LCD_V: |
| 1606 | if (font_options->subpixel_order == CAIRO_SUBPIXEL_ORDER_VBGR) |
| 1607 | rgba = FC_RGBA_VBGR4; |
| 1608 | else |
| 1609 | rgba = FC_RGBA_VRGB3; |
| 1610 | break; |
| 1611 | |
| 1612 | case FT_RENDER_MODE_MONO: |
| 1613 | case FT_RENDER_MODE_LIGHT: |
| 1614 | case FT_RENDER_MODE_NORMAL: |
| 1615 | case FT_RENDER_MODE_MAX: |
| 1616 | #if HAVE_FT_RENDER_MODE_SDF1 |
| 1617 | case FT_RENDER_MODE_SDF: |
| 1618 | #endif |
| 1619 | default: |
| 1620 | break; |
| 1621 | } |
| 1622 | |
| 1623 | #if HAVE_FT_LIBRARY_SETLCDFILTER |
| 1624 | FT_Library_SetLcdFilter (library, lcd_filter); |
| 1625 | #endif |
| 1626 | |
| 1627 | error = FT_Render_Glyph (face->glyph, render_mode); |
| 1628 | |
| 1629 | #if HAVE_FT_LIBRARY_SETLCDFILTER |
| 1630 | FT_Library_SetLcdFilter (library, FT_LCD_FILTER_NONE0); |
| 1631 | #endif |
| 1632 | |
| 1633 | if (error) |
| 1634 | return _cairo_error (_cairo_ft_to_cairo_error (error)); |
| 1635 | |
| 1636 | bitmap_size = _compute_xrender_bitmap_size (&bitmap, |
| 1637 | face->glyph, |
| 1638 | render_mode); |
| 1639 | if (bitmap_size < 0) |
| 1640 | return _cairo_error (CAIRO_STATUS_INVALID_FORMAT); |
| 1641 | |
| 1642 | bitmap.buffer = calloc (1, bitmap_size); |
| 1643 | if (bitmap.buffer == NULL((void*)0)) |
| 1644 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 1645 | |
| 1646 | _fill_xrender_bitmap (&bitmap, face->glyph, render_mode, |
| 1647 | (rgba == FC_RGBA_BGR2 || rgba == FC_RGBA_VBGR4)); |
| 1648 | |
| 1649 | /* Note: |
| 1650 | * _get_bitmap_surface will free bitmap.buffer if there is an error |
| 1651 | */ |
| 1652 | status = _get_bitmap_surface (&bitmap, NULL((void*)0), TRUE1, font_options, surface); |
| 1653 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1654 | return status; |
| 1655 | |
| 1656 | /* Note: the font's coordinate system is upside down from ours, so the |
| 1657 | * Y coordinate of the control box needs to be negated. Moreover, device |
| 1658 | * offsets are position of glyph origin relative to top left while xMin |
| 1659 | * and yMax are offsets of top left relative to origin. Another negation. |
| 1660 | */ |
| 1661 | cairo_surface_set_device_offset_moz_cairo_surface_set_device_offset (&(*surface)->base, |
| 1662 | (double)-glyphslot->bitmap_left, |
| 1663 | (double)+glyphslot->bitmap_top); |
| 1664 | } |
| 1665 | |
| 1666 | return CAIRO_STATUS_SUCCESS; |
| 1667 | } |
| 1668 | |
| 1669 | /* Converts a bitmap (or other) FT_GlyphSlot into an image */ |
| 1670 | static cairo_status_t |
| 1671 | _render_glyph_bitmap (FT_Face face, |
| 1672 | cairo_font_options_t *font_options, |
| 1673 | cairo_image_surface_t **surface) |
| 1674 | { |
| 1675 | FT_GlyphSlot glyphslot = face->glyph; |
| 1676 | cairo_status_t status; |
| 1677 | FT_Error error; |
| 1678 | |
| 1679 | /* According to the FreeType docs, glyphslot->format could be |
| 1680 | * something other than FT_GLYPH_FORMAT_OUTLINE or |
| 1681 | * FT_GLYPH_FORMAT_BITMAP. Calling FT_Render_Glyph gives FreeType |
| 1682 | * the opportunity to convert such to |
| 1683 | * bitmap. FT_GLYPH_FORMAT_COMPOSITE will not be encountered since |
| 1684 | * we avoid the FT_LOAD_NO_RECURSE flag. |
| 1685 | */ |
| 1686 | error = FT_Render_Glyph (glyphslot, FT_RENDER_MODE_NORMAL); |
| 1687 | /* XXX ignoring all other errors for now. They are not fatal, typically |
| 1688 | * just a glyph-not-found. */ |
| 1689 | if (error == FT_Err_Out_Of_Memory) |
| 1690 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 1691 | |
| 1692 | status = _get_bitmap_surface (&glyphslot->bitmap, |
| 1693 | glyphslot->library, |
| 1694 | FALSE0, font_options, |
| 1695 | surface); |
| 1696 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1697 | return status; |
| 1698 | |
| 1699 | /* |
| 1700 | * Note: the font's coordinate system is upside down from ours, so the |
| 1701 | * Y coordinate of the control box needs to be negated. Moreover, device |
| 1702 | * offsets are position of glyph origin relative to top left while |
| 1703 | * bitmap_left and bitmap_top are offsets of top left relative to origin. |
| 1704 | * Another negation. |
| 1705 | */ |
| 1706 | cairo_surface_set_device_offset_moz_cairo_surface_set_device_offset (&(*surface)->base, |
| 1707 | -glyphslot->bitmap_left, |
| 1708 | +glyphslot->bitmap_top); |
| 1709 | |
| 1710 | return CAIRO_STATUS_SUCCESS; |
| 1711 | } |
| 1712 | |
| 1713 | static cairo_status_t |
| 1714 | _transform_glyph_bitmap (cairo_matrix_t * shape, |
| 1715 | cairo_image_surface_t ** surface) |
| 1716 | { |
| 1717 | cairo_matrix_t original_to_transformed; |
| 1718 | cairo_matrix_t transformed_to_original; |
| 1719 | cairo_image_surface_t *old_image; |
| 1720 | cairo_surface_t *image; |
| 1721 | double x[4], y[4]; |
| 1722 | double origin_x, origin_y; |
| 1723 | int orig_width, orig_height; |
| 1724 | int i; |
| 1725 | int x_min, y_min, x_max, y_max; |
| 1726 | int width, height; |
| 1727 | cairo_status_t status; |
| 1728 | cairo_surface_pattern_t pattern; |
| 1729 | |
| 1730 | /* We want to compute a transform that takes the origin |
| 1731 | * (device_x_offset, device_y_offset) to 0,0, then applies |
| 1732 | * the "shape" portion of the font transform |
| 1733 | */ |
| 1734 | original_to_transformed = *shape; |
| 1735 | |
| 1736 | cairo_surface_get_device_offset_moz_cairo_surface_get_device_offset (&(*surface)->base, &origin_x, &origin_y); |
| 1737 | orig_width = (*surface)->width; |
| 1738 | orig_height = (*surface)->height; |
| 1739 | |
| 1740 | cairo_matrix_translate_moz_cairo_matrix_translate (&original_to_transformed, |
| 1741 | -origin_x, -origin_y); |
| 1742 | |
| 1743 | /* Find the bounding box of the original bitmap under that |
| 1744 | * transform |
| 1745 | */ |
| 1746 | x[0] = 0; y[0] = 0; |
| 1747 | x[1] = orig_width; y[1] = 0; |
| 1748 | x[2] = orig_width; y[2] = orig_height; |
| 1749 | x[3] = 0; y[3] = orig_height; |
| 1750 | |
| 1751 | for (i = 0; i < 4; i++) |
| 1752 | cairo_matrix_transform_point_moz_cairo_matrix_transform_point (&original_to_transformed, |
| 1753 | &x[i], &y[i]); |
| 1754 | |
| 1755 | x_min = floor (x[0]); y_min = floor (y[0]); |
| 1756 | x_max = ceil (x[0]); y_max = ceil (y[0]); |
| 1757 | |
| 1758 | for (i = 1; i < 4; i++) { |
| 1759 | if (x[i] < x_min) |
| 1760 | x_min = floor (x[i]); |
| 1761 | else if (x[i] > x_max) |
| 1762 | x_max = ceil (x[i]); |
| 1763 | if (y[i] < y_min) |
| 1764 | y_min = floor (y[i]); |
| 1765 | else if (y[i] > y_max) |
| 1766 | y_max = ceil (y[i]); |
| 1767 | } |
| 1768 | |
| 1769 | /* Adjust the transform so that the bounding box starts at 0,0 ... |
| 1770 | * this gives our final transform from original bitmap to transformed |
| 1771 | * bitmap. |
| 1772 | */ |
| 1773 | original_to_transformed.x0 -= x_min; |
| 1774 | original_to_transformed.y0 -= y_min; |
| 1775 | |
| 1776 | /* Create the transformed bitmap */ |
| 1777 | width = x_max - x_min; |
| 1778 | height = y_max - y_min; |
| 1779 | |
| 1780 | transformed_to_original = original_to_transformed; |
| 1781 | status = cairo_matrix_invert_moz_cairo_matrix_invert (&transformed_to_original); |
| 1782 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1783 | return status; |
| 1784 | |
| 1785 | if ((*surface)->format == CAIRO_FORMAT_ARGB32 && |
| 1786 | !pixman_image_get_component_alpha_moz_pixman_image_get_component_alpha ((*surface)->pixman_image)) |
| 1787 | image = cairo_image_surface_create_moz_cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); |
| 1788 | else |
| 1789 | image = cairo_image_surface_create_moz_cairo_image_surface_create (CAIRO_FORMAT_A8, width, height); |
| 1790 | if (unlikely (image->status)(__builtin_expect (!!(image->status), 0))) |
| 1791 | return image->status; |
| 1792 | |
| 1793 | /* Draw the original bitmap transformed into the new bitmap |
| 1794 | */ |
| 1795 | _cairo_pattern_init_for_surface (&pattern, &(*surface)->base); |
| 1796 | cairo_pattern_set_matrix_moz_cairo_pattern_set_matrix (&pattern.base, &transformed_to_original); |
| 1797 | |
| 1798 | status = _cairo_surface_paint (image, |
| 1799 | CAIRO_OPERATOR_SOURCE, |
| 1800 | &pattern.base, |
| 1801 | NULL((void*)0)); |
| 1802 | |
| 1803 | _cairo_pattern_fini (&pattern.base); |
| 1804 | |
| 1805 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 1806 | cairo_surface_destroy_moz_cairo_surface_destroy (image); |
| 1807 | return status; |
| 1808 | } |
| 1809 | |
| 1810 | /* Now update the cache entry for the new bitmap, recomputing |
| 1811 | * the origin based on the final transform. |
| 1812 | */ |
| 1813 | cairo_matrix_transform_point_moz_cairo_matrix_transform_point (&original_to_transformed, |
| 1814 | &origin_x, &origin_y); |
| 1815 | |
| 1816 | old_image = (*surface); |
| 1817 | (*surface) = (cairo_image_surface_t *)image; |
| 1818 | |
| 1819 | /* Note: we converted subpixel-rendered RGBA images to grayscale, |
| 1820 | * so, no need to copy component alpha to new image. */ |
| 1821 | |
| 1822 | cairo_surface_destroy_moz_cairo_surface_destroy (&old_image->base); |
| 1823 | |
| 1824 | cairo_surface_set_device_offset_moz_cairo_surface_set_device_offset (&(*surface)->base, |
| 1825 | _cairo_lround (origin_x), |
| 1826 | _cairo_lround (origin_y)); |
| 1827 | return CAIRO_STATUS_SUCCESS; |
| 1828 | } |
| 1829 | |
| 1830 | static const cairo_unscaled_font_backend_t cairo_ft_unscaled_font_backend = { |
| 1831 | _cairo_ft_unscaled_font_destroy, |
| 1832 | #if 0 |
| 1833 | _cairo_ft_unscaled_font_create_glyph |
| 1834 | #endif |
| 1835 | }; |
| 1836 | |
| 1837 | /* #cairo_ft_scaled_font_t */ |
| 1838 | |
| 1839 | typedef struct _cairo_ft_scaled_font { |
| 1840 | cairo_scaled_font_t base; |
| 1841 | cairo_ft_unscaled_font_t *unscaled; |
| 1842 | cairo_ft_options_t ft_options; |
| 1843 | } cairo_ft_scaled_font_t; |
| 1844 | |
| 1845 | static const cairo_scaled_font_backend_t _cairo_ft_scaled_font_backend; |
| 1846 | |
| 1847 | #if CAIRO_HAS_FC_FONT1 |
| 1848 | /* The load flags passed to FT_Load_Glyph control aspects like hinting and |
| 1849 | * antialiasing. Here we compute them from the fields of a FcPattern. |
| 1850 | */ |
| 1851 | static void |
| 1852 | _get_pattern_ft_options (FcPattern *pattern, cairo_ft_options_t *ret) |
| 1853 | { |
| 1854 | FcBool antialias, vertical_layout, hinting, autohint, bitmap, embolden; |
| 1855 | cairo_ft_options_t ft_options; |
| 1856 | int rgba; |
| 1857 | #ifdef FC_HINT_STYLE"hintstyle" |
| 1858 | int hintstyle; |
| 1859 | #endif |
| 1860 | char *variations; |
| 1861 | |
| 1862 | _cairo_font_options_init_default (&ft_options.base); |
| 1863 | ft_options.load_flags = FT_LOAD_DEFAULT0x0; |
| 1864 | ft_options.synth_flags = 0; |
| 1865 | |
| 1866 | #ifndef FC_EMBEDDED_BITMAP"embeddedbitmap" |
| 1867 | #define FC_EMBEDDED_BITMAP"embeddedbitmap" "embeddedbitmap" |
| 1868 | #endif |
| 1869 | |
| 1870 | /* Check whether to force use of embedded bitmaps */ |
| 1871 | if (FcPatternGetBool (pattern, |
| 1872 | FC_EMBEDDED_BITMAP"embeddedbitmap", 0, &bitmap) != FcResultMatch) |
| 1873 | bitmap = FcFalse0; |
| 1874 | |
| 1875 | /* disable antialiasing if requested */ |
| 1876 | if (FcPatternGetBool (pattern, |
| 1877 | FC_ANTIALIAS"antialias", 0, &antialias) != FcResultMatch) |
| 1878 | antialias = FcTrue1; |
| 1879 | |
| 1880 | if (antialias) { |
| 1881 | cairo_subpixel_order_t subpixel_order; |
| 1882 | int lcd_filter; |
| 1883 | |
| 1884 | /* disable hinting if requested */ |
| 1885 | if (FcPatternGetBool (pattern, |
| 1886 | FC_HINTING"hinting", 0, &hinting) != FcResultMatch) |
| 1887 | hinting = FcTrue1; |
| 1888 | |
| 1889 | if (FcPatternGetInteger (pattern, |
| 1890 | FC_RGBA"rgba", 0, &rgba) != FcResultMatch) |
| 1891 | rgba = FC_RGBA_UNKNOWN0; |
| 1892 | |
| 1893 | switch (rgba) { |
| 1894 | case FC_RGBA_RGB1: |
| 1895 | subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB; |
| 1896 | break; |
| 1897 | case FC_RGBA_BGR2: |
| 1898 | subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR; |
| 1899 | break; |
| 1900 | case FC_RGBA_VRGB3: |
| 1901 | subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB; |
| 1902 | break; |
| 1903 | case FC_RGBA_VBGR4: |
| 1904 | subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR; |
| 1905 | break; |
| 1906 | case FC_RGBA_UNKNOWN0: |
| 1907 | case FC_RGBA_NONE5: |
| 1908 | default: |
| 1909 | subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT; |
| 1910 | break; |
| 1911 | } |
| 1912 | |
| 1913 | if (subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT) { |
| 1914 | ft_options.base.subpixel_order = subpixel_order; |
| 1915 | ft_options.base.antialias = CAIRO_ANTIALIAS_SUBPIXEL; |
| 1916 | } |
| 1917 | |
| 1918 | if (FcPatternGetInteger (pattern, |
| 1919 | FC_LCD_FILTER"lcdfilter", 0, &lcd_filter) == FcResultMatch) |
| 1920 | { |
| 1921 | switch (lcd_filter) { |
| 1922 | case FC_LCD_NONE0: |
| 1923 | ft_options.base.lcd_filter = CAIRO_LCD_FILTER_NONE; |
| 1924 | break; |
| 1925 | case FC_LCD_DEFAULT1: |
| 1926 | ft_options.base.lcd_filter = CAIRO_LCD_FILTER_FIR5; |
| 1927 | break; |
| 1928 | case FC_LCD_LIGHT2: |
| 1929 | ft_options.base.lcd_filter = CAIRO_LCD_FILTER_FIR3; |
| 1930 | break; |
| 1931 | case FC_LCD_LEGACY3: |
| 1932 | ft_options.base.lcd_filter = CAIRO_LCD_FILTER_INTRA_PIXEL; |
| 1933 | break; |
| 1934 | } |
| 1935 | } |
| 1936 | |
| 1937 | #ifdef FC_HINT_STYLE"hintstyle" |
| 1938 | if (FcPatternGetInteger (pattern, |
| 1939 | FC_HINT_STYLE"hintstyle", 0, &hintstyle) != FcResultMatch) |
| 1940 | hintstyle = FC_HINT_FULL3; |
| 1941 | |
| 1942 | if (!hinting) |
| 1943 | hintstyle = FC_HINT_NONE0; |
| 1944 | |
| 1945 | switch (hintstyle) { |
| 1946 | case FC_HINT_NONE0: |
| 1947 | ft_options.base.hint_style = CAIRO_HINT_STYLE_NONE; |
| 1948 | break; |
| 1949 | case FC_HINT_SLIGHT1: |
| 1950 | ft_options.base.hint_style = CAIRO_HINT_STYLE_SLIGHT; |
| 1951 | break; |
| 1952 | case FC_HINT_MEDIUM2: |
| 1953 | default: |
| 1954 | ft_options.base.hint_style = CAIRO_HINT_STYLE_MEDIUM; |
| 1955 | break; |
| 1956 | case FC_HINT_FULL3: |
| 1957 | ft_options.base.hint_style = CAIRO_HINT_STYLE_FULL; |
| 1958 | break; |
| 1959 | } |
| 1960 | #else /* !FC_HINT_STYLE */ |
| 1961 | if (!hinting) { |
| 1962 | ft_options.base.hint_style = CAIRO_HINT_STYLE_NONE; |
| 1963 | } |
| 1964 | #endif /* FC_HINT_STYLE */ |
| 1965 | |
| 1966 | /* Force embedded bitmaps off if no hinting requested */ |
| 1967 | if (ft_options.base.hint_style == CAIRO_HINT_STYLE_NONE) |
| 1968 | bitmap = FcFalse0; |
| 1969 | |
| 1970 | if (!bitmap) |
| 1971 | ft_options.load_flags |= FT_LOAD_NO_BITMAP( 1L << 3 ); |
| 1972 | |
| 1973 | } else { |
| 1974 | ft_options.base.antialias = CAIRO_ANTIALIAS_NONE; |
| 1975 | } |
| 1976 | |
| 1977 | /* force autohinting if requested */ |
| 1978 | if (FcPatternGetBool (pattern, |
| 1979 | FC_AUTOHINT"autohint", 0, &autohint) != FcResultMatch) |
| 1980 | autohint = FcFalse0; |
| 1981 | |
| 1982 | if (autohint) |
| 1983 | ft_options.load_flags |= FT_LOAD_FORCE_AUTOHINT( 1L << 5 ); |
| 1984 | |
| 1985 | if (FcPatternGetBool (pattern, |
| 1986 | FC_VERTICAL_LAYOUT"verticallayout", 0, &vertical_layout) != FcResultMatch) |
| 1987 | vertical_layout = FcFalse0; |
| 1988 | |
| 1989 | if (vertical_layout) |
| 1990 | ft_options.load_flags |= FT_LOAD_VERTICAL_LAYOUT( 1L << 4 ); |
| 1991 | |
| 1992 | #ifndef FC_EMBOLDEN"embolden" |
| 1993 | #define FC_EMBOLDEN"embolden" "embolden" |
| 1994 | #endif |
| 1995 | if (FcPatternGetBool (pattern, |
| 1996 | FC_EMBOLDEN"embolden", 0, &embolden) != FcResultMatch) |
| 1997 | embolden = FcFalse0; |
| 1998 | |
| 1999 | if (embolden) |
| 2000 | ft_options.synth_flags |= CAIRO_FT_SYNTHESIZE_BOLD; |
| 2001 | |
| 2002 | #ifndef FC_FONT_VARIATIONS"fontvariations" |
| 2003 | #define FC_FONT_VARIATIONS"fontvariations" "fontvariations" |
| 2004 | #endif |
| 2005 | if (FcPatternGetString (pattern, FC_FONT_VARIATIONS"fontvariations", 0, (FcChar8 **) &variations) == FcResultMatch) { |
| 2006 | ft_options.base.variations = strdup (variations); |
| 2007 | } |
| 2008 | |
| 2009 | *ret = ft_options; |
| 2010 | } |
| 2011 | #endif |
| 2012 | |
| 2013 | static void |
| 2014 | _cairo_ft_options_merge (cairo_ft_options_t *options, |
| 2015 | cairo_ft_options_t *other) |
| 2016 | { |
| 2017 | int load_flags = other->load_flags; |
| 2018 | int load_target = FT_LOAD_TARGET_NORMAL( (FT_Int32)((FT_RENDER_MODE_NORMAL) & 15) << 16 ); |
| 2019 | |
| 2020 | /* clear load target mode */ |
| 2021 | load_flags &= ~(FT_LOAD_TARGET_(FT_LOAD_TARGET_MODE(other->load_flags))( (FT_Int32)(((FT_Render_Mode)(( (other->load_flags) >> 16 ) & 15)) & 15) << 16 )); |
| 2022 | |
| 2023 | if (load_flags & FT_LOAD_NO_HINTING( 1L << 1 )) |
| 2024 | other->base.hint_style = CAIRO_HINT_STYLE_NONE; |
| 2025 | |
| 2026 | if (other->base.antialias == CAIRO_ANTIALIAS_NONE || |
| 2027 | options->base.antialias == CAIRO_ANTIALIAS_NONE) { |
| 2028 | options->base.antialias = CAIRO_ANTIALIAS_NONE; |
| 2029 | options->base.subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT; |
| 2030 | } |
| 2031 | |
| 2032 | if (other->base.antialias == CAIRO_ANTIALIAS_SUBPIXEL && |
| 2033 | options->base.antialias == CAIRO_ANTIALIAS_DEFAULT) { |
| 2034 | options->base.antialias = CAIRO_ANTIALIAS_SUBPIXEL; |
| 2035 | options->base.subpixel_order = other->base.subpixel_order; |
| 2036 | } |
| 2037 | |
| 2038 | if (options->base.hint_style == CAIRO_HINT_STYLE_DEFAULT) |
| 2039 | options->base.hint_style = other->base.hint_style; |
| 2040 | |
| 2041 | if (other->base.hint_style == CAIRO_HINT_STYLE_NONE) |
| 2042 | options->base.hint_style = CAIRO_HINT_STYLE_NONE; |
| 2043 | |
| 2044 | if (options->base.lcd_filter == CAIRO_LCD_FILTER_DEFAULT) |
| 2045 | options->base.lcd_filter = other->base.lcd_filter; |
| 2046 | |
| 2047 | if (other->base.lcd_filter == CAIRO_LCD_FILTER_NONE) |
| 2048 | options->base.lcd_filter = CAIRO_LCD_FILTER_NONE; |
| 2049 | |
| 2050 | if (options->base.antialias == CAIRO_ANTIALIAS_NONE) { |
| 2051 | if (options->base.hint_style == CAIRO_HINT_STYLE_NONE) |
| 2052 | load_flags |= FT_LOAD_NO_HINTING( 1L << 1 ); |
| 2053 | else |
| 2054 | load_target = FT_LOAD_TARGET_MONO( (FT_Int32)((FT_RENDER_MODE_MONO) & 15) << 16 ); |
| 2055 | load_flags |= FT_LOAD_MONOCHROME( 1L << 12 ); |
| 2056 | } else { |
| 2057 | switch (options->base.hint_style) { |
| 2058 | case CAIRO_HINT_STYLE_NONE: |
| 2059 | load_flags |= FT_LOAD_NO_HINTING( 1L << 1 ); |
| 2060 | break; |
| 2061 | case CAIRO_HINT_STYLE_SLIGHT: |
| 2062 | load_target = FT_LOAD_TARGET_LIGHT( (FT_Int32)((FT_RENDER_MODE_LIGHT) & 15) << 16 ); |
| 2063 | break; |
| 2064 | case CAIRO_HINT_STYLE_MEDIUM: |
| 2065 | break; |
| 2066 | case CAIRO_HINT_STYLE_FULL: |
| 2067 | case CAIRO_HINT_STYLE_DEFAULT: |
| 2068 | if (options->base.antialias == CAIRO_ANTIALIAS_SUBPIXEL) { |
| 2069 | switch (options->base.subpixel_order) { |
| 2070 | case CAIRO_SUBPIXEL_ORDER_DEFAULT: |
| 2071 | case CAIRO_SUBPIXEL_ORDER_RGB: |
| 2072 | case CAIRO_SUBPIXEL_ORDER_BGR: |
| 2073 | load_target = FT_LOAD_TARGET_LCD( (FT_Int32)((FT_RENDER_MODE_LCD) & 15) << 16 ); |
| 2074 | break; |
| 2075 | case CAIRO_SUBPIXEL_ORDER_VRGB: |
| 2076 | case CAIRO_SUBPIXEL_ORDER_VBGR: |
| 2077 | load_target = FT_LOAD_TARGET_LCD_V( (FT_Int32)((FT_RENDER_MODE_LCD_V) & 15) << 16 ); |
| 2078 | break; |
| 2079 | } |
| 2080 | } |
| 2081 | break; |
| 2082 | } |
| 2083 | } |
| 2084 | |
| 2085 | if (other->base.variations) { |
| 2086 | if (options->base.variations) { |
| 2087 | char *p; |
| 2088 | |
| 2089 | /* 'merge' variations by concatenating - later entries win */ |
| 2090 | p = malloc (strlen (other->base.variations) + strlen (options->base.variations) + 2); |
| 2091 | p[0] = 0; |
| 2092 | strcat (p, other->base.variations); |
| 2093 | strcat (p, ","); |
| 2094 | strcat (p, options->base.variations); |
| 2095 | free (options->base.variations); |
| 2096 | options->base.variations = p; |
| 2097 | } |
| 2098 | else { |
| 2099 | options->base.variations = strdup (other->base.variations); |
| 2100 | } |
| 2101 | } |
| 2102 | |
| 2103 | options->load_flags = load_flags | load_target; |
| 2104 | options->synth_flags = other->synth_flags; |
| 2105 | } |
| 2106 | |
| 2107 | static cairo_status_t |
| 2108 | _cairo_ft_font_face_scaled_font_create (void *abstract_font_face, |
| 2109 | const cairo_matrix_t *font_matrix, |
| 2110 | const cairo_matrix_t *ctm, |
| 2111 | const cairo_font_options_t *options, |
| 2112 | cairo_scaled_font_t **font_out) |
| 2113 | { |
| 2114 | cairo_ft_font_face_t *font_face = abstract_font_face; |
| 2115 | cairo_ft_scaled_font_t *scaled_font; |
| 2116 | FT_Face face; |
| 2117 | FT_Size_Metrics *metrics; |
| 2118 | cairo_font_extents_t fs_metrics; |
| 2119 | cairo_status_t status; |
| 2120 | cairo_ft_unscaled_font_t *unscaled; |
| 2121 | |
| 2122 | assert (font_face->unscaled)((void) sizeof ((font_face->unscaled) ? 1 : 0), __extension__ ({ if (font_face->unscaled) ; else __assert_fail ("font_face->unscaled" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 2122 , __extension__ __PRETTY_FUNCTION__); })); |
| 2123 | |
| 2124 | face = _cairo_ft_unscaled_font_lock_face (font_face->unscaled); |
| 2125 | if (unlikely (face == NULL)(__builtin_expect (!!(face == ((void*)0)), 0))) /* backend error */ |
| 2126 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 2127 | |
| 2128 | scaled_font = _cairo_malloc (sizeof (cairo_ft_scaled_font_t))((sizeof (cairo_ft_scaled_font_t)) != 0 ? malloc(sizeof (cairo_ft_scaled_font_t )) : ((void*)0)); |
| 2129 | if (unlikely (scaled_font == NULL)(__builtin_expect (!!(scaled_font == ((void*)0)), 0))) { |
| 2130 | status = _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 2131 | goto FAIL; |
| 2132 | } |
| 2133 | |
| 2134 | scaled_font->unscaled = unscaled = font_face->unscaled; |
| 2135 | _cairo_unscaled_font_reference (&unscaled->base); |
| 2136 | |
| 2137 | _cairo_font_options_init_copy (&scaled_font->ft_options.base, options); |
| 2138 | _cairo_ft_options_merge (&scaled_font->ft_options, &font_face->ft_options); |
| 2139 | |
| 2140 | status = _cairo_scaled_font_init (&scaled_font->base, |
| 2141 | &font_face->base, |
| 2142 | font_matrix, ctm, options, |
| 2143 | &_cairo_ft_scaled_font_backend); |
| 2144 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 2145 | goto CLEANUP_SCALED_FONT; |
| 2146 | |
| 2147 | status = _cairo_ft_unscaled_font_set_scale (unscaled, |
| 2148 | &scaled_font->base.scale); |
| 2149 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 2150 | /* This can only fail if we encounter an error with the underlying |
| 2151 | * font, so propagate the error back to the font-face. */ |
| 2152 | _cairo_ft_unscaled_font_unlock_face (unscaled); |
| 2153 | _cairo_unscaled_font_destroy (&unscaled->base); |
| 2154 | free (scaled_font); |
| 2155 | return status; |
| 2156 | } |
| 2157 | |
| 2158 | |
| 2159 | metrics = &face->size->metrics; |
| 2160 | |
| 2161 | /* |
| 2162 | * Get to unscaled metrics so that the upper level can get back to |
| 2163 | * user space |
| 2164 | * |
| 2165 | * Also use this path for bitmap-only fonts. The other branch uses |
| 2166 | * face members that are only relevant for scalable fonts. This is |
| 2167 | * detected by simply checking for units_per_EM==0. |
| 2168 | */ |
| 2169 | if (scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF || |
| 2170 | face->units_per_EM == 0) { |
| 2171 | double x_factor, y_factor; |
| 2172 | |
| 2173 | if (unscaled->x_scale == 0) |
| 2174 | x_factor = 0; |
| 2175 | else |
| 2176 | x_factor = 1 / unscaled->x_scale; |
| 2177 | |
| 2178 | if (unscaled->y_scale == 0) |
| 2179 | y_factor = 0; |
| 2180 | else |
| 2181 | y_factor = 1 / unscaled->y_scale; |
| 2182 | |
| 2183 | fs_metrics.ascent = DOUBLE_FROM_26_6(metrics->ascender)((double)(metrics->ascender) / 64.0) * y_factor; |
| 2184 | fs_metrics.descent = DOUBLE_FROM_26_6(- metrics->descender)((double)(- metrics->descender) / 64.0) * y_factor; |
| 2185 | fs_metrics.height = DOUBLE_FROM_26_6(metrics->height)((double)(metrics->height) / 64.0) * y_factor; |
| 2186 | if (!_cairo_ft_scaled_font_is_vertical (&scaled_font->base)) { |
| 2187 | fs_metrics.max_x_advance = DOUBLE_FROM_26_6(metrics->max_advance)((double)(metrics->max_advance) / 64.0) * x_factor; |
| 2188 | fs_metrics.max_y_advance = 0; |
| 2189 | } else { |
| 2190 | fs_metrics.max_x_advance = 0; |
| 2191 | fs_metrics.max_y_advance = DOUBLE_FROM_26_6(metrics->max_advance)((double)(metrics->max_advance) / 64.0) * y_factor; |
| 2192 | } |
| 2193 | } else { |
| 2194 | double scale = face->units_per_EM; |
| 2195 | |
| 2196 | fs_metrics.ascent = face->ascender / scale; |
| 2197 | fs_metrics.descent = - face->descender / scale; |
| 2198 | fs_metrics.height = face->height / scale; |
| 2199 | if (!_cairo_ft_scaled_font_is_vertical (&scaled_font->base)) { |
| 2200 | fs_metrics.max_x_advance = face->max_advance_width / scale; |
| 2201 | fs_metrics.max_y_advance = 0; |
| 2202 | } else { |
| 2203 | fs_metrics.max_x_advance = 0; |
| 2204 | fs_metrics.max_y_advance = face->max_advance_height / scale; |
| 2205 | } |
| 2206 | } |
| 2207 | |
| 2208 | status = _cairo_scaled_font_set_metrics (&scaled_font->base, &fs_metrics); |
| 2209 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 2210 | goto CLEANUP_SCALED_FONT; |
| 2211 | |
| 2212 | _cairo_ft_unscaled_font_unlock_face (unscaled); |
| 2213 | |
| 2214 | *font_out = &scaled_font->base; |
| 2215 | return CAIRO_STATUS_SUCCESS; |
| 2216 | |
| 2217 | CLEANUP_SCALED_FONT: |
| 2218 | _cairo_unscaled_font_destroy (&unscaled->base); |
| 2219 | free (scaled_font); |
| 2220 | FAIL: |
| 2221 | _cairo_ft_unscaled_font_unlock_face (font_face->unscaled); |
| 2222 | *font_out = _cairo_scaled_font_create_in_error (status); |
| 2223 | return CAIRO_STATUS_SUCCESS; /* non-backend error */ |
| 2224 | } |
| 2225 | |
| 2226 | cairo_bool_t |
| 2227 | _cairo_scaled_font_is_ft (cairo_scaled_font_t *scaled_font) |
| 2228 | { |
| 2229 | return scaled_font->backend == &_cairo_ft_scaled_font_backend; |
| 2230 | } |
| 2231 | |
| 2232 | static void |
| 2233 | _cairo_ft_scaled_font_fini (void *abstract_font) |
| 2234 | { |
| 2235 | cairo_ft_scaled_font_t *scaled_font = abstract_font; |
| 2236 | |
| 2237 | if (scaled_font == NULL((void*)0)) |
| 2238 | return; |
| 2239 | |
| 2240 | _cairo_font_options_fini (&scaled_font->ft_options.base); |
| 2241 | _cairo_unscaled_font_destroy (&scaled_font->unscaled->base); |
| 2242 | } |
| 2243 | |
| 2244 | static int |
| 2245 | _move_to (FT_Vector *to, void *closure) |
| 2246 | { |
| 2247 | cairo_path_fixed_t *path = closure; |
| 2248 | cairo_fixed_t x, y; |
| 2249 | |
| 2250 | x = _cairo_fixed_from_26_6 (to->x); |
| 2251 | y = _cairo_fixed_from_26_6 (to->y); |
| 2252 | |
| 2253 | if (_cairo_path_fixed_close_path (path) != CAIRO_STATUS_SUCCESS) |
| 2254 | return 1; |
| 2255 | if (_cairo_path_fixed_move_to (path, x, y) != CAIRO_STATUS_SUCCESS) |
| 2256 | return 1; |
| 2257 | |
| 2258 | return 0; |
| 2259 | } |
| 2260 | |
| 2261 | static int |
| 2262 | _line_to (FT_Vector *to, void *closure) |
| 2263 | { |
| 2264 | cairo_path_fixed_t *path = closure; |
| 2265 | cairo_fixed_t x, y; |
| 2266 | |
| 2267 | x = _cairo_fixed_from_26_6 (to->x); |
| 2268 | y = _cairo_fixed_from_26_6 (to->y); |
| 2269 | |
| 2270 | if (_cairo_path_fixed_line_to (path, x, y) != CAIRO_STATUS_SUCCESS) |
| 2271 | return 1; |
| 2272 | |
| 2273 | return 0; |
| 2274 | } |
| 2275 | |
| 2276 | static int |
| 2277 | _conic_to (FT_Vector *control, FT_Vector *to, void *closure) |
| 2278 | { |
| 2279 | cairo_path_fixed_t *path = closure; |
| 2280 | |
| 2281 | cairo_fixed_t x0, y0; |
| 2282 | cairo_fixed_t x1, y1; |
| 2283 | cairo_fixed_t x2, y2; |
| 2284 | cairo_fixed_t x3, y3; |
| 2285 | cairo_point_t conic; |
| 2286 | |
| 2287 | if (! _cairo_path_fixed_get_current_point (path, &x0, &y0)) |
| 2288 | return 1; |
| 2289 | |
| 2290 | conic.x = _cairo_fixed_from_26_6 (control->x); |
| 2291 | conic.y = _cairo_fixed_from_26_6 (control->y); |
| 2292 | |
| 2293 | x3 = _cairo_fixed_from_26_6 (to->x); |
| 2294 | y3 = _cairo_fixed_from_26_6 (to->y); |
| 2295 | |
| 2296 | x1 = x0 + 2.0/3.0 * (conic.x - x0); |
| 2297 | y1 = y0 + 2.0/3.0 * (conic.y - y0); |
| 2298 | |
| 2299 | x2 = x3 + 2.0/3.0 * (conic.x - x3); |
| 2300 | y2 = y3 + 2.0/3.0 * (conic.y - y3); |
| 2301 | |
| 2302 | if (_cairo_path_fixed_curve_to (path, |
| 2303 | x1, y1, |
| 2304 | x2, y2, |
| 2305 | x3, y3) != CAIRO_STATUS_SUCCESS) |
| 2306 | return 1; |
| 2307 | |
| 2308 | return 0; |
| 2309 | } |
| 2310 | |
| 2311 | static int |
| 2312 | _cubic_to (FT_Vector *control1, FT_Vector *control2, |
| 2313 | FT_Vector *to, void *closure) |
| 2314 | { |
| 2315 | cairo_path_fixed_t *path = closure; |
| 2316 | cairo_fixed_t x0, y0; |
| 2317 | cairo_fixed_t x1, y1; |
| 2318 | cairo_fixed_t x2, y2; |
| 2319 | |
| 2320 | x0 = _cairo_fixed_from_26_6 (control1->x); |
| 2321 | y0 = _cairo_fixed_from_26_6 (control1->y); |
| 2322 | |
| 2323 | x1 = _cairo_fixed_from_26_6 (control2->x); |
| 2324 | y1 = _cairo_fixed_from_26_6 (control2->y); |
| 2325 | |
| 2326 | x2 = _cairo_fixed_from_26_6 (to->x); |
| 2327 | y2 = _cairo_fixed_from_26_6 (to->y); |
| 2328 | |
| 2329 | if (_cairo_path_fixed_curve_to (path, |
| 2330 | x0, y0, |
| 2331 | x1, y1, |
| 2332 | x2, y2) != CAIRO_STATUS_SUCCESS) |
| 2333 | return 1; |
| 2334 | |
| 2335 | return 0; |
| 2336 | } |
| 2337 | |
| 2338 | cairo_status_t |
| 2339 | _cairo_ft_face_decompose_glyph_outline (FT_Face face, |
| 2340 | cairo_path_fixed_t **pathp) |
| 2341 | { |
| 2342 | static const FT_Outline_Funcs outline_funcs = { |
| 2343 | (FT_Outline_MoveToFunc)_move_to, |
| 2344 | (FT_Outline_LineToFunc)_line_to, |
| 2345 | (FT_Outline_ConicToFunc)_conic_to, |
| 2346 | (FT_Outline_CubicToFunc)_cubic_to, |
| 2347 | 0, /* shift */ |
| 2348 | 0, /* delta */ |
| 2349 | }; |
| 2350 | static const FT_Matrix invert_y = { |
| 2351 | DOUBLE_TO_16_16 (1.0)((FT_Fixed)((1.0) * 65536.0)), 0, |
| 2352 | 0, DOUBLE_TO_16_16 (-1.0)((FT_Fixed)((-1.0) * 65536.0)), |
| 2353 | }; |
| 2354 | |
| 2355 | FT_GlyphSlot glyph; |
| 2356 | cairo_path_fixed_t *path; |
| 2357 | cairo_status_t status; |
| 2358 | |
| 2359 | path = _cairo_path_fixed_create (); |
| 2360 | if (!path) |
| 2361 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 2362 | |
| 2363 | glyph = face->glyph; |
| 2364 | |
| 2365 | /* Font glyphs have an inverted Y axis compared to cairo. */ |
| 2366 | FT_Outline_Transform (&glyph->outline, &invert_y); |
| 2367 | if (FT_Outline_Decompose (&glyph->outline, &outline_funcs, path)) { |
| 2368 | _cairo_path_fixed_destroy (path); |
| 2369 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 2370 | } |
| 2371 | |
| 2372 | status = _cairo_path_fixed_close_path (path); |
| 2373 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 2374 | _cairo_path_fixed_destroy (path); |
| 2375 | return status; |
| 2376 | } |
| 2377 | |
| 2378 | *pathp = path; |
| 2379 | |
| 2380 | return CAIRO_STATUS_SUCCESS; |
| 2381 | } |
| 2382 | |
| 2383 | /* |
| 2384 | * Translate glyph to match its metrics. |
| 2385 | */ |
| 2386 | static void |
| 2387 | _cairo_ft_scaled_glyph_vertical_layout_bearing_fix (void *abstract_font, |
| 2388 | FT_GlyphSlot glyph) |
| 2389 | { |
| 2390 | cairo_ft_scaled_font_t *scaled_font = abstract_font; |
| 2391 | FT_Vector vector; |
| 2392 | |
| 2393 | vector.x = glyph->metrics.vertBearingX - glyph->metrics.horiBearingX; |
| 2394 | vector.y = -glyph->metrics.vertBearingY - glyph->metrics.horiBearingY; |
| 2395 | |
| 2396 | if (glyph->format == FT_GLYPH_FORMAT_OUTLINE) { |
| 2397 | FT_Vector_Transform (&vector, &scaled_font->unscaled->Current_Shape); |
| 2398 | FT_Outline_Translate(&glyph->outline, vector.x, vector.y); |
| 2399 | } else if (glyph->format == FT_GLYPH_FORMAT_BITMAP) { |
| 2400 | glyph->bitmap_left += vector.x / 64; |
| 2401 | glyph->bitmap_top += vector.y / 64; |
| 2402 | } |
| 2403 | } |
| 2404 | |
| 2405 | static void |
| 2406 | cairo_ft_apply_variations (FT_Face face, |
| 2407 | cairo_ft_scaled_font_t *scaled_font) |
| 2408 | { |
| 2409 | FT_MM_Var *ft_mm_var; |
| 2410 | FT_Error ret; |
| 2411 | unsigned int instance_id = scaled_font->unscaled->id >> 16; |
| 2412 | |
| 2413 | static GetVarFunc getVar; |
| 2414 | static DoneVarFunc doneVar; |
| 2415 | static GetVarDesignCoordsFunc getVarDesignCoords; |
| 2416 | static SetVarDesignCoordsFunc setVarDesignCoords; |
| 2417 | |
| 2418 | static int firstTime = 1; |
| 2419 | if (firstTime) { |
| 2420 | getVar = (GetVarFunc) dlsym (RTLD_DEFAULT((void *) 0), "FT_Get_MM_Var"); |
| 2421 | doneVar = (DoneVarFunc) dlsym (RTLD_DEFAULT((void *) 0), "FT_Done_MM_Var"); |
| 2422 | getVarDesignCoords = (GetVarDesignCoordsFunc) dlsym (RTLD_DEFAULT((void *) 0), "FT_Get_Var_Design_Coordinates"); |
| 2423 | setVarDesignCoords = (SetVarDesignCoordsFunc) dlsym (RTLD_DEFAULT((void *) 0), "FT_Set_Var_Design_Coordinates"); |
| 2424 | firstTime = 0; |
| 2425 | } |
| 2426 | |
| 2427 | if (!getVar || !setVarDesignCoords) |
| 2428 | return; |
| 2429 | |
| 2430 | ret = (*getVar) (face, &ft_mm_var); |
| 2431 | if (ret == 0) { |
| 2432 | FT_Fixed *current_coords; |
| 2433 | FT_Fixed *coords; |
| 2434 | unsigned int i; |
| 2435 | const char *p; |
| 2436 | |
| 2437 | coords = malloc (sizeof (FT_Fixed) * ft_mm_var->num_axis); |
| 2438 | /* FIXME check coords. */ |
| 2439 | |
| 2440 | if (scaled_font->unscaled->variations) |
| 2441 | { |
| 2442 | memcpy (coords, scaled_font->unscaled->variations, ft_mm_var->num_axis * sizeof (*coords)); |
| 2443 | } |
| 2444 | else if (instance_id && instance_id <= ft_mm_var->num_namedstyles) |
| 2445 | { |
| 2446 | FT_Var_Named_Style *instance = &ft_mm_var->namedstyle[instance_id - 1]; |
| 2447 | memcpy (coords, instance->coords, ft_mm_var->num_axis * sizeof (*coords)); |
| 2448 | } |
| 2449 | else |
| 2450 | for (i = 0; i < ft_mm_var->num_axis; i++) |
| 2451 | coords[i] = ft_mm_var->axis[i].def; |
| 2452 | |
| 2453 | p = scaled_font->ft_options.base.variations; |
| 2454 | while (p && *p) { |
| 2455 | const char *start; |
| 2456 | const char *end, *end2; |
| 2457 | FT_ULong tag; |
| 2458 | double value; |
| 2459 | |
| 2460 | while (_cairo_isspace (*p)) p++; |
| 2461 | |
| 2462 | start = p; |
| 2463 | end = strchr (p, ','); |
| 2464 | if (end && (end - p < 6)) |
| 2465 | goto skip; |
| 2466 | |
| 2467 | tag = FT_MAKE_TAG(p[0], p[1], p[2], p[3])( ( (FT_Tag)(unsigned char)(p[0]) << 24 ) | ( (FT_Tag)( unsigned char)(p[1]) << 16 ) | ( (FT_Tag)(unsigned char )(p[2]) << 8 ) | (FT_Tag)(unsigned char)(p[3]) ); |
| 2468 | |
| 2469 | p += 4; |
| 2470 | while (_cairo_isspace (*p)) p++; |
| 2471 | if (*p == '=') p++; |
| 2472 | |
| 2473 | if (p - start < 5) |
| 2474 | goto skip; |
| 2475 | |
| 2476 | value = _cairo_strtod (p, (char **) &end2); |
| 2477 | |
| 2478 | while (end2 && _cairo_isspace (*end2)) end2++; |
| 2479 | |
| 2480 | if (end2 && (*end2 != ',' && *end2 != '\0')) |
| 2481 | goto skip; |
| 2482 | |
| 2483 | for (i = 0; i < ft_mm_var->num_axis; i++) { |
| 2484 | if (ft_mm_var->axis[i].tag == tag) { |
| 2485 | coords[i] = (FT_Fixed)(value*65536); |
| 2486 | break; |
| 2487 | } |
| 2488 | } |
| 2489 | |
| 2490 | skip: |
| 2491 | p = end ? end + 1 : NULL((void*)0); |
| 2492 | } |
| 2493 | |
| 2494 | current_coords = malloc (sizeof (FT_Fixed) * ft_mm_var->num_axis); |
| 2495 | |
| 2496 | if (getVarDesignCoords) { |
| 2497 | ret = (*getVarDesignCoords) (face, ft_mm_var->num_axis, current_coords); |
| 2498 | if (ret == 0) { |
| 2499 | for (i = 0; i < ft_mm_var->num_axis; i++) { |
| 2500 | if (coords[i] != current_coords[i]) |
| 2501 | break; |
| 2502 | } |
| 2503 | if (i == ft_mm_var->num_axis) |
| 2504 | goto done; |
| 2505 | } |
| 2506 | } |
| 2507 | |
| 2508 | (*setVarDesignCoords) (face, ft_mm_var->num_axis, coords); |
| 2509 | done: |
| 2510 | free (coords); |
| 2511 | free (current_coords); |
| 2512 | |
| 2513 | if (doneVar) |
| 2514 | (*doneVar) (face->glyph->library, ft_mm_var); |
| 2515 | else |
| 2516 | free (ft_mm_var); |
| 2517 | } |
| 2518 | } |
| 2519 | |
| 2520 | static cairo_int_status_t |
| 2521 | _cairo_ft_scaled_glyph_load_glyph (cairo_ft_scaled_font_t *scaled_font, |
| 2522 | cairo_scaled_glyph_t *scaled_glyph, |
| 2523 | FT_Face face, |
| 2524 | int load_flags, |
| 2525 | cairo_bool_t use_em_size, |
| 2526 | cairo_bool_t vertical_layout) |
| 2527 | { |
| 2528 | FT_Error error; |
| 2529 | cairo_status_t status; |
| 2530 | |
| 2531 | if (use_em_size) { |
| 2532 | cairo_matrix_t em_size; |
| 2533 | cairo_matrix_init_scale_moz_cairo_matrix_init_scale (&em_size, face->units_per_EM, face->units_per_EM); |
| 2534 | status = _cairo_ft_unscaled_font_set_scale (scaled_font->unscaled, &em_size); |
| 2535 | } else { |
| 2536 | status = _cairo_ft_unscaled_font_set_scale (scaled_font->unscaled, |
| 2537 | &scaled_font->base.scale); |
| 2538 | } |
| 2539 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 2540 | return status; |
| 2541 | |
| 2542 | cairo_ft_apply_variations (face, scaled_font); |
| 2543 | |
| 2544 | error = FT_Load_Glyph (face, |
| 2545 | _cairo_scaled_glyph_index(scaled_glyph)((unsigned long)((scaled_glyph)->hash_entry.hash & 0xffffff )), |
| 2546 | load_flags); |
| 2547 | /* XXX ignoring all other errors for now. They are not fatal, typically |
| 2548 | * just a glyph-not-found. */ |
| 2549 | if (error == FT_Err_Out_Of_Memory) |
| 2550 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 2551 | |
| 2552 | /* |
| 2553 | * synthesize glyphs if requested |
| 2554 | */ |
| 2555 | #if HAVE_FT_GLYPHSLOT_EMBOLDEN |
| 2556 | if (scaled_font->ft_options.synth_flags & CAIRO_FT_SYNTHESIZE_BOLD) |
| 2557 | FT_GlyphSlot_Embolden (face->glyph); |
| 2558 | #endif |
| 2559 | |
| 2560 | #if HAVE_FT_GLYPHSLOT_OBLIQUE |
| 2561 | if (scaled_font->ft_options.synth_flags & CAIRO_FT_SYNTHESIZE_OBLIQUE) |
| 2562 | FT_GlyphSlot_Oblique (face->glyph); |
| 2563 | #endif |
| 2564 | |
| 2565 | if (vertical_layout) |
| 2566 | _cairo_ft_scaled_glyph_vertical_layout_bearing_fix (scaled_font, face->glyph); |
| 2567 | |
| 2568 | if (face->glyph->format == FT_GLYPH_FORMAT_OUTLINE) { |
| 2569 | FT_Pos xshift, yshift; |
| 2570 | |
| 2571 | xshift = _cairo_scaled_glyph_xphase (scaled_glyph)(int)(((scaled_glyph)->hash_entry.hash >> 24) & 3 ) << 4; |
| 2572 | yshift = _cairo_scaled_glyph_yphase (scaled_glyph)(int)(((scaled_glyph)->hash_entry.hash >> 26) & 3 ) << 4; |
| 2573 | |
| 2574 | FT_Outline_Translate (&face->glyph->outline, xshift, -yshift); |
| 2575 | } |
| 2576 | |
| 2577 | return CAIRO_STATUS_SUCCESS; |
| 2578 | } |
| 2579 | |
| 2580 | typedef enum { |
| 2581 | CAIRO_FT_GLYPH_TYPE_BITMAP, |
| 2582 | CAIRO_FT_GLYPH_TYPE_OUTLINE, |
| 2583 | CAIRO_FT_GLYPH_TYPE_SVG, |
| 2584 | CAIRO_FT_GLYPH_TYPE_COLR_V0, |
| 2585 | CAIRO_FT_GLYPH_TYPE_COLR_V1, |
| 2586 | } cairo_ft_glyph_format_t; |
| 2587 | |
| 2588 | typedef struct { |
| 2589 | cairo_scaled_glyph_private_t base; |
| 2590 | |
| 2591 | cairo_ft_glyph_format_t format; |
| 2592 | } cairo_ft_glyph_private_t; |
| 2593 | |
| 2594 | static void |
| 2595 | _cairo_ft_glyph_fini (cairo_scaled_glyph_private_t *glyph_private, |
| 2596 | cairo_scaled_glyph_t *glyph, |
| 2597 | cairo_scaled_font_t *font) |
| 2598 | { |
| 2599 | cairo_list_del (&glyph_private->link); |
| 2600 | free (glyph_private); |
| 2601 | } |
| 2602 | |
| 2603 | |
| 2604 | #ifdef FT_COLOR_H<freetype/ftcolor.h> |
| 2605 | static void |
| 2606 | _cairo_ft_scaled_glyph_set_palette (cairo_ft_scaled_font_t *scaled_font, |
| 2607 | FT_Face face, |
| 2608 | unsigned int *num_entries_ret, |
| 2609 | FT_Color **entries_ret) |
| 2610 | { |
| 2611 | unsigned int num_entries = 0; |
| 2612 | FT_Color *entries = NULL((void*)0); |
| 2613 | |
| 2614 | #ifdef HAVE_FT_PALETTE_SELECT |
| 2615 | FT_Palette_Data palette_data; |
| 2616 | |
| 2617 | if (FT_Palette_Data_Get (face, &palette_data) == 0 && palette_data.num_palettes > 0) { |
| 2618 | FT_UShort palette_index = CAIRO_COLOR_PALETTE_DEFAULT0; |
| 2619 | if (scaled_font->base.options.palette_index < palette_data.num_palettes) |
| 2620 | palette_index = scaled_font->base.options.palette_index; |
| 2621 | |
| 2622 | if (FT_Palette_Select (face, palette_index, &entries) == 0) { |
| 2623 | num_entries = palette_data.num_palette_entries; |
| 2624 | |
| 2625 | /* Overlay custom colors */ |
| 2626 | for (unsigned int i = 0; i < scaled_font->base.options.custom_palette_size; i++) { |
| 2627 | cairo_palette_color_t *entry = &scaled_font->base.options.custom_palette[i]; |
| 2628 | if (entry->index < num_entries) { |
| 2629 | entries[entry->index].red = 255 * entry->red; |
| 2630 | entries[entry->index].green = 255 * entry->green; |
| 2631 | entries[entry->index].blue = 255 * entry->blue; |
| 2632 | entries[entry->index].alpha = 255 * entry->alpha; |
| 2633 | } |
| 2634 | } |
| 2635 | } |
| 2636 | } |
| 2637 | #endif |
| 2638 | |
| 2639 | if (num_entries_ret) |
| 2640 | *num_entries_ret = num_entries; |
| 2641 | |
| 2642 | if (entries_ret) |
| 2643 | *entries_ret = entries; |
| 2644 | } |
| 2645 | #else |
| 2646 | static void |
| 2647 | _cairo_ft_scaled_glyph_set_palette (cairo_ft_scaled_font_t *scaled_font, |
| 2648 | FT_Face face, |
| 2649 | unsigned int *num_entries_ret, |
| 2650 | void **entries_ret) |
| 2651 | { |
| 2652 | if (num_entries_ret) |
| 2653 | *num_entries_ret = 0; |
| 2654 | |
| 2655 | if (entries_ret) |
| 2656 | *entries_ret = NULL((void*)0); |
| 2657 | } |
| 2658 | #endif |
| 2659 | |
| 2660 | /* returns TRUE if foreground color used */ |
| 2661 | static cairo_bool_t |
| 2662 | _cairo_ft_scaled_glyph_set_foreground_color (cairo_ft_scaled_font_t *scaled_font, |
| 2663 | cairo_scaled_glyph_t *scaled_glyph, |
| 2664 | FT_Face face, |
| 2665 | const cairo_color_t *foreground_color) |
| 2666 | { |
| 2667 | cairo_bool_t uses_foreground_color = FALSE0; |
| 2668 | #ifdef HAVE_FT_PALETTE_SELECT |
| 2669 | FT_LayerIterator iterator; |
| 2670 | FT_UInt layer_glyph_index; |
| 2671 | FT_UInt layer_color_index; |
| 2672 | FT_Color color; |
| 2673 | |
| 2674 | /* Check if there is a layer that uses the foreground color */ |
| 2675 | iterator.p = NULL((void*)0); |
| 2676 | while (FT_Get_Color_Glyph_Layer(face, |
| 2677 | _cairo_scaled_glyph_index (scaled_glyph)((unsigned long)((scaled_glyph)->hash_entry.hash & 0xffffff )), |
| 2678 | &layer_glyph_index, |
| 2679 | &layer_color_index, |
| 2680 | &iterator)) { |
| 2681 | if (layer_color_index == 0xFFFF) { |
| 2682 | uses_foreground_color = TRUE1; |
| 2683 | break; |
| 2684 | } |
| 2685 | } |
| 2686 | |
| 2687 | if (uses_foreground_color) { |
| 2688 | color.red = (FT_Byte)(foreground_color->red * 0xFF); |
| 2689 | color.green = (FT_Byte)(foreground_color->green * 0xFF); |
| 2690 | color.blue = (FT_Byte)(foreground_color->blue * 0xFF); |
| 2691 | color.alpha = (FT_Byte)(foreground_color->alpha * 0xFF); |
| 2692 | FT_Palette_Set_Foreground_Color (face, color); |
| 2693 | } |
| 2694 | #endif |
| 2695 | return uses_foreground_color; |
| 2696 | } |
| 2697 | |
| 2698 | static cairo_int_status_t |
| 2699 | _cairo_ft_scaled_glyph_init_surface (cairo_ft_scaled_font_t *scaled_font, |
| 2700 | cairo_scaled_glyph_t *scaled_glyph, |
| 2701 | cairo_ft_glyph_private_t *glyph_priv, |
| 2702 | cairo_scaled_glyph_info_t info, |
| 2703 | FT_Face face, |
| 2704 | const cairo_color_t *foreground_color, |
| 2705 | cairo_bool_t vertical_layout, |
| 2706 | int load_flags) |
| 2707 | { |
| 2708 | cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; |
| 2709 | FT_GlyphSlot glyph; |
| 2710 | cairo_status_t status; |
| 2711 | cairo_image_surface_t *surface; |
| 2712 | cairo_bool_t uses_foreground_color = FALSE0; |
| 2713 | |
| 2714 | /* Only one info type at a time handled in this function */ |
| 2715 | assert (info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE || info == CAIRO_SCALED_GLYPH_INFO_SURFACE)((void) sizeof ((info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE || info == CAIRO_SCALED_GLYPH_INFO_SURFACE) ? 1 : 0), __extension__ ({ if (info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE || info == CAIRO_SCALED_GLYPH_INFO_SURFACE) ; else __assert_fail ("info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE || info == CAIRO_SCALED_GLYPH_INFO_SURFACE" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 2715 , __extension__ __PRETTY_FUNCTION__); })); |
| 2716 | |
| 2717 | if (info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) { |
| 2718 | if (!unscaled->have_color) { |
| 2719 | scaled_glyph->color_glyph = FALSE0; |
| 2720 | scaled_glyph->color_glyph_set = TRUE1; |
| 2721 | return CAIRO_INT_STATUS_UNSUPPORTED; |
| 2722 | } |
| 2723 | |
| 2724 | uses_foreground_color = _cairo_ft_scaled_glyph_set_foreground_color (scaled_font, |
| 2725 | scaled_glyph, |
| 2726 | face, |
| 2727 | foreground_color); |
| 2728 | _cairo_ft_scaled_glyph_set_palette (scaled_font, face, NULL((void*)0), NULL((void*)0)); |
| 2729 | |
| 2730 | load_flags &= ~FT_LOAD_MONOCHROME( 1L << 12 ); |
| 2731 | /* clear load target mode */ |
| 2732 | load_flags &= ~(FT_LOAD_TARGET_(FT_LOAD_TARGET_MODE(load_flags))( (FT_Int32)(((FT_Render_Mode)(( (load_flags) >> 16 ) & 15)) & 15) << 16 )); |
| 2733 | load_flags |= FT_LOAD_TARGET_NORMAL( (FT_Int32)((FT_RENDER_MODE_NORMAL) & 15) << 16 ); |
| 2734 | #ifdef FT_LOAD_COLOR( 1L << 20 ) |
| 2735 | load_flags |= FT_LOAD_COLOR( 1L << 20 ); |
| 2736 | #endif |
| 2737 | } else { /* info == CAIRO_SCALED_GLYPH_INFO_SURFACE */ |
| 2738 | #ifdef FT_LOAD_COLOR( 1L << 20 ) |
| 2739 | load_flags &= ~FT_LOAD_COLOR( 1L << 20 ); |
| 2740 | #endif |
| 2741 | } |
| 2742 | |
| 2743 | status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, |
| 2744 | scaled_glyph, |
| 2745 | face, |
| 2746 | load_flags, |
| 2747 | FALSE0, |
| 2748 | vertical_layout); |
| 2749 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 2750 | return status; |
| 2751 | |
| 2752 | glyph = face->glyph; |
| 2753 | |
| 2754 | if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_OUTLINE) { |
| 2755 | |
| 2756 | status = _render_glyph_outline (face, &scaled_font->ft_options.base, |
| 2757 | &surface); |
| 2758 | } else { |
| 2759 | status = _render_glyph_bitmap (face, &scaled_font->ft_options.base, |
| 2760 | &surface); |
| 2761 | if (likely (status == CAIRO_STATUS_SUCCESS)(__builtin_expect (!!(status == CAIRO_STATUS_SUCCESS), 1)) && unscaled->have_shape) { |
| 2762 | status = _transform_glyph_bitmap (&unscaled->current_shape, |
| 2763 | &surface); |
| 2764 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 2765 | cairo_surface_destroy_moz_cairo_surface_destroy (&surface->base); |
| 2766 | } |
| 2767 | } |
| 2768 | |
| 2769 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 2770 | return status; |
| 2771 | |
| 2772 | if (info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) { |
| 2773 | /* We tried loading a color glyph and can now check if we got |
| 2774 | * a color glyph and set scaled_glyph->color_glyph |
| 2775 | * accordingly */ |
| 2776 | if (pixman_image_get_format_moz_pixman_image_get_format (surface->pixman_image) == PIXMAN_a8r8g8b8 && |
| 2777 | !pixman_image_get_component_alpha_moz_pixman_image_get_component_alpha (surface->pixman_image)) |
| 2778 | { |
| 2779 | _cairo_scaled_glyph_set_color_surface (scaled_glyph, |
| 2780 | &scaled_font->base, |
| 2781 | surface, |
| 2782 | uses_foreground_color ? foreground_color : NULL((void*)0)); |
| 2783 | |
| 2784 | scaled_glyph->color_glyph = TRUE1; |
| 2785 | } else { |
| 2786 | /* We didn't ask for a non-color surface, but store it |
| 2787 | * anyway so we don't have to load it again. */ |
| 2788 | _cairo_scaled_glyph_set_surface (scaled_glyph, |
| 2789 | &scaled_font->base, |
| 2790 | surface); |
| 2791 | scaled_glyph->color_glyph = FALSE0; |
| 2792 | status = CAIRO_INT_STATUS_UNSUPPORTED; |
| 2793 | } |
| 2794 | scaled_glyph->color_glyph_set = TRUE1; |
| 2795 | } else { /* info == CAIRO_SCALED_GLYPH_INFO_SURFACE */ |
| 2796 | _cairo_scaled_glyph_set_surface (scaled_glyph, |
| 2797 | &scaled_font->base, |
| 2798 | surface); |
| 2799 | } |
| 2800 | |
| 2801 | return status; |
| 2802 | } |
| 2803 | |
| 2804 | static cairo_int_status_t |
| 2805 | _cairo_ft_scaled_glyph_init_record_colr_v0_glyph (cairo_ft_scaled_font_t *scaled_font, |
| 2806 | cairo_scaled_glyph_t *scaled_glyph, |
| 2807 | FT_Face face, |
| 2808 | cairo_bool_t vertical_layout, |
| 2809 | int load_flags) |
| 2810 | { |
| 2811 | #ifdef HAVE_FT_PALETTE_SELECT |
| 2812 | cairo_surface_t *recording_surface; |
| 2813 | cairo_t *cr; |
| 2814 | cairo_status_t status; |
| 2815 | FT_Color *palette; |
| 2816 | unsigned int num_palette_entries; |
| 2817 | FT_LayerIterator iterator; |
| 2818 | FT_UInt layer_glyph_index; |
| 2819 | FT_UInt layer_color_index; |
| 2820 | cairo_path_fixed_t *path_fixed; |
| 2821 | cairo_path_t *path; |
| 2822 | |
| 2823 | _cairo_ft_scaled_glyph_set_palette (scaled_font, face, &num_palette_entries, &palette); |
| 2824 | |
| 2825 | load_flags &= ~FT_LOAD_MONOCHROME( 1L << 12 ); |
| 2826 | /* clear load target mode */ |
| 2827 | load_flags &= ~(FT_LOAD_TARGET_(FT_LOAD_TARGET_MODE(load_flags))( (FT_Int32)(((FT_Render_Mode)(( (load_flags) >> 16 ) & 15)) & 15) << 16 )); |
| 2828 | load_flags |= FT_LOAD_TARGET_NORMAL( (FT_Int32)((FT_RENDER_MODE_NORMAL) & 15) << 16 ); |
| 2829 | load_flags |= FT_LOAD_COLOR( 1L << 20 ); |
| 2830 | |
| 2831 | recording_surface = |
| 2832 | cairo_recording_surface_create_moz_cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL((void*)0)); |
| 2833 | |
| 2834 | cr = cairo_create_moz_cairo_create (recording_surface); |
| 2835 | |
| 2836 | if (!_cairo_matrix_is_scale_0 (&scaled_font->base.scale)) { |
| 2837 | cairo_matrix_t scale; |
| 2838 | scale = scaled_font->base.scale; |
| 2839 | scale.x0 = scale.y0 = 0.; |
| 2840 | cairo_set_matrix_moz_cairo_set_matrix (cr, &scale); |
| 2841 | } |
| 2842 | |
| 2843 | iterator.p = NULL((void*)0); |
| 2844 | while (FT_Get_Color_Glyph_Layer(face, |
| 2845 | _cairo_scaled_glyph_index (scaled_glyph)((unsigned long)((scaled_glyph)->hash_entry.hash & 0xffffff )), |
| 2846 | &layer_glyph_index, |
| 2847 | &layer_color_index, |
| 2848 | &iterator)) |
| 2849 | { |
| 2850 | cairo_pattern_t *pattern; |
| 2851 | if (layer_color_index == 0xFFFF) { |
| 2852 | pattern = _cairo_pattern_create_foreground_marker (); |
| 2853 | } else { |
| 2854 | double r = 0, g = 0, b = 0, a = 1; |
| 2855 | if (layer_color_index < num_palette_entries) { |
| 2856 | FT_Color *color = &palette[layer_color_index]; |
| 2857 | r = color->red / 255.0; |
| 2858 | g = color->green/ 255.0; |
| 2859 | b = color->blue / 255.0; |
| 2860 | a = color->alpha / 255.0; |
| 2861 | } |
| 2862 | pattern = cairo_pattern_create_rgba_moz_cairo_pattern_create_rgba (r, g, b, a); |
| 2863 | } |
| 2864 | cairo_set_source_moz_cairo_set_source (cr, pattern); |
| 2865 | cairo_pattern_destroy_moz_cairo_pattern_destroy (pattern); |
| 2866 | |
| 2867 | if (FT_Load_Glyph (face, layer_glyph_index, load_flags) != 0) { |
| 2868 | status = CAIRO_INT_STATUS_UNSUPPORTED; |
| 2869 | goto cleanup; |
| 2870 | } |
| 2871 | |
| 2872 | status = _cairo_ft_face_decompose_glyph_outline (face, &path_fixed); |
| 2873 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 2874 | return status; |
| 2875 | |
| 2876 | path = _cairo_path_create (path_fixed, cr); |
| 2877 | _cairo_path_fixed_destroy (path_fixed); |
| 2878 | cairo_append_path_moz_cairo_append_path(cr, path); |
| 2879 | cairo_path_destroy_moz_cairo_path_destroy (path); |
| 2880 | cairo_fill_moz_cairo_fill (cr); |
| 2881 | } |
| 2882 | |
| 2883 | cleanup: |
| 2884 | cairo_destroy_moz_cairo_destroy (cr); |
| 2885 | |
| 2886 | if (status) { |
| 2887 | cairo_surface_destroy_moz_cairo_surface_destroy (recording_surface); |
| 2888 | return status; |
| 2889 | } |
| 2890 | |
| 2891 | _cairo_scaled_glyph_set_recording_surface (scaled_glyph, |
| 2892 | &scaled_font->base, |
| 2893 | recording_surface, |
| 2894 | NULL((void*)0)); |
| 2895 | return status; |
| 2896 | #else |
| 2897 | return CAIRO_INT_STATUS_UNSUPPORTED; |
| 2898 | #endif |
| 2899 | } |
| 2900 | |
| 2901 | static cairo_int_status_t |
| 2902 | _cairo_ft_scaled_glyph_init_record_colr_v1_glyph (cairo_ft_scaled_font_t *scaled_font, |
| 2903 | cairo_scaled_glyph_t *scaled_glyph, |
| 2904 | FT_Face face, |
| 2905 | const cairo_color_t *foreground_color, |
| 2906 | cairo_text_extents_t *extents) |
| 2907 | { |
| 2908 | #if HAVE_FT_COLR_V1 |
| 2909 | cairo_status_t status = CAIRO_STATUS_SUCCESS; |
| 2910 | cairo_surface_t *recording_surface; |
| 2911 | cairo_t *cr; |
| 2912 | FT_Color *palette; |
| 2913 | unsigned int num_palette_entries; |
| 2914 | cairo_bool_t foreground_source_used = FALSE0; |
| 2915 | |
| 2916 | recording_surface = |
| 2917 | cairo_recording_surface_create_moz_cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL((void*)0)); |
| 2918 | |
| 2919 | cairo_surface_set_device_scale (recording_surface, 1, -1); |
| 2920 | |
| 2921 | cr = cairo_create_moz_cairo_create (recording_surface); |
| 2922 | |
| 2923 | cairo_set_font_size_moz_cairo_set_font_size (cr, 1.0); |
| 2924 | cairo_set_font_options_moz_cairo_set_font_options (cr, &scaled_font->base.options); |
| 2925 | |
| 2926 | extents->x_bearing = DOUBLE_FROM_26_6(face->bbox.xMin)((double)(face->bbox.xMin) / 64.0); |
| 2927 | extents->y_bearing = DOUBLE_FROM_26_6(face->bbox.yMin)((double)(face->bbox.yMin) / 64.0); |
| 2928 | extents->width = DOUBLE_FROM_26_6(face->bbox.xMax)((double)(face->bbox.xMax) / 64.0) - extents->x_bearing; |
| 2929 | extents->height = DOUBLE_FROM_26_6(face->bbox.yMax)((double)(face->bbox.yMax) / 64.0) - extents->y_bearing; |
| 2930 | |
| 2931 | _cairo_ft_scaled_glyph_set_palette (scaled_font, face, &num_palette_entries, &palette); |
| 2932 | |
| 2933 | if (!_cairo_matrix_is_scale_0 (&scaled_font->base.scale)) { |
| 2934 | cairo_pattern_t *foreground_pattern = _cairo_pattern_create_solid (foreground_color); |
| 2935 | status = _cairo_render_colr_v1_glyph (face, |
| 2936 | _cairo_scaled_glyph_index (scaled_glyph)((unsigned long)((scaled_glyph)->hash_entry.hash & 0xffffff )), |
| 2937 | palette, |
| 2938 | num_palette_entries, |
| 2939 | cr, |
| 2940 | foreground_pattern, |
| 2941 | &foreground_source_used); |
| 2942 | cairo_pattern_destroy_moz_cairo_pattern_destroy (foreground_pattern); |
| 2943 | if (status == CAIRO_STATUS_SUCCESS) |
| 2944 | status = cairo_status_moz_cairo_status (cr); |
| 2945 | } |
| 2946 | |
| 2947 | cairo_destroy_moz_cairo_destroy (cr); |
| 2948 | |
| 2949 | if (status) { |
| 2950 | cairo_surface_destroy_moz_cairo_surface_destroy (recording_surface); |
| 2951 | scaled_glyph->color_glyph = FALSE0; |
| 2952 | scaled_glyph->color_glyph_set = TRUE1; |
| 2953 | return status; |
| 2954 | } |
| 2955 | |
| 2956 | _cairo_scaled_glyph_set_recording_surface (scaled_glyph, |
| 2957 | &scaled_font->base, |
| 2958 | recording_surface, |
| 2959 | foreground_source_used ? foreground_color : NULL((void*)0)); |
| 2960 | |
| 2961 | scaled_glyph->color_glyph = TRUE1; |
| 2962 | scaled_glyph->color_glyph_set = TRUE1; |
| 2963 | |
| 2964 | /* get metrics */ |
| 2965 | |
| 2966 | /* Copied from cairo-user-font.c */ |
| 2967 | cairo_matrix_t extent_scale; |
| 2968 | double extent_x_scale; |
| 2969 | double extent_y_scale; |
| 2970 | double snap_x_scale; |
| 2971 | double snap_y_scale; |
| 2972 | double fixed_scale, x_scale, y_scale; |
| 2973 | |
| 2974 | extent_scale = scaled_font->base.scale_inverse; |
| 2975 | snap_x_scale = 1.0; |
| 2976 | snap_y_scale = 1.0; |
| 2977 | status = _cairo_matrix_compute_basis_scale_factors (&extent_scale, |
| 2978 | &x_scale, &y_scale, |
| 2979 | 1); |
| 2980 | if (status == CAIRO_STATUS_SUCCESS) { |
| 2981 | if (x_scale == 0) |
| 2982 | x_scale = 1; |
| 2983 | if (y_scale == 0) |
| 2984 | y_scale = 1; |
| 2985 | |
| 2986 | snap_x_scale = x_scale; |
| 2987 | snap_y_scale = y_scale; |
| 2988 | |
| 2989 | /* since glyphs are pretty much 1.0x1.0, we can reduce error by |
| 2990 | * scaling to a larger square. say, 1024.x1024. */ |
| 2991 | fixed_scale = 1024; |
| 2992 | x_scale /= fixed_scale; |
| 2993 | y_scale /= fixed_scale; |
| 2994 | |
| 2995 | cairo_matrix_scale_moz_cairo_matrix_scale (&extent_scale, 1.0 / x_scale, 1.0 / y_scale); |
| 2996 | |
| 2997 | extent_x_scale = x_scale; |
| 2998 | extent_y_scale = y_scale; |
| 2999 | } |
| 3000 | |
| 3001 | { |
| 3002 | /* compute width / height */ |
| 3003 | cairo_box_t bbox; |
| 3004 | double x1, y1, x2, y2; |
| 3005 | double x_scale, y_scale; |
| 3006 | |
| 3007 | /* Compute extents.x/y/width/height from recording_surface, |
| 3008 | * in font space. |
| 3009 | */ |
| 3010 | status = _cairo_recording_surface_get_bbox ((cairo_recording_surface_t *) recording_surface, |
| 3011 | &bbox, |
| 3012 | &extent_scale); |
| 3013 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3014 | return status; |
| 3015 | |
| 3016 | _cairo_box_to_doubles (&bbox, &x1, &y1, &x2, &y2); |
| 3017 | |
| 3018 | x_scale = extent_x_scale; |
| 3019 | y_scale = extent_y_scale; |
| 3020 | extents->x_bearing = x1 * x_scale; |
| 3021 | extents->y_bearing = y1 * y_scale; |
| 3022 | extents->width = (x2 - x1) * x_scale; |
| 3023 | extents->height = (y2 - y1) * y_scale; |
| 3024 | } |
| 3025 | |
| 3026 | if (scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF) { |
| 3027 | extents->x_advance = _cairo_lround (extents->x_advance / snap_x_scale) * snap_x_scale; |
| 3028 | extents->y_advance = _cairo_lround (extents->y_advance / snap_y_scale) * snap_y_scale; |
| 3029 | } |
| 3030 | |
| 3031 | return status; |
| 3032 | #else |
| 3033 | return CAIRO_INT_STATUS_UNSUPPORTED; |
| 3034 | #endif |
| 3035 | } |
| 3036 | |
| 3037 | static cairo_int_status_t |
| 3038 | _cairo_ft_scaled_glyph_init_record_svg_glyph (cairo_ft_scaled_font_t *scaled_font, |
| 3039 | cairo_scaled_glyph_t *scaled_glyph, |
| 3040 | FT_Face face, |
| 3041 | const cairo_color_t *foreground_color, |
| 3042 | cairo_text_extents_t *extents) |
| 3043 | { |
| 3044 | #if HAVE_FT_SVG_DOCUMENT |
| 3045 | cairo_status_t status = CAIRO_STATUS_SUCCESS; |
| 3046 | cairo_surface_t *recording_surface; |
| 3047 | cairo_t *cr; |
| 3048 | FT_SVG_Document svg_doc = face->glyph->other; |
| 3049 | char *svg_document; |
| 3050 | FT_Color *palette; |
| 3051 | unsigned int num_palette_entries; |
| 3052 | cairo_bool_t foreground_source_used = FALSE0; |
| 3053 | |
| 3054 | /* Create NULL terminated SVG document */ |
| 3055 | svg_document = _cairo_strndupstrndup ((const char*)svg_doc->svg_document, svg_doc->svg_document_length); |
| 3056 | |
| 3057 | recording_surface = |
| 3058 | cairo_recording_surface_create_moz_cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL((void*)0)); |
| 3059 | |
| 3060 | cr = cairo_create_moz_cairo_create (recording_surface); |
| 3061 | |
| 3062 | if (!_cairo_matrix_is_scale_0 (&scaled_font->base.scale)) { |
| 3063 | cairo_matrix_t scale; |
| 3064 | scale = scaled_font->base.scale; |
| 3065 | scale.x0 = scale.y0 = 0.; |
| 3066 | cairo_set_matrix_moz_cairo_set_matrix (cr, &scale); |
| 3067 | } |
| 3068 | |
| 3069 | cairo_set_font_size_moz_cairo_set_font_size (cr, 1.0); |
| 3070 | cairo_set_font_options_moz_cairo_set_font_options (cr, &scaled_font->base.options); |
| 3071 | |
| 3072 | extents->x_bearing = DOUBLE_FROM_26_6(face->bbox.xMin)((double)(face->bbox.xMin) / 64.0); |
| 3073 | extents->y_bearing = DOUBLE_FROM_26_6(face->bbox.yMin)((double)(face->bbox.yMin) / 64.0); |
| 3074 | extents->width = DOUBLE_FROM_26_6(face->bbox.xMax)((double)(face->bbox.xMax) / 64.0) - extents->x_bearing; |
| 3075 | extents->height = DOUBLE_FROM_26_6(face->bbox.yMax)((double)(face->bbox.yMax) / 64.0) - extents->y_bearing; |
| 3076 | |
| 3077 | _cairo_ft_scaled_glyph_set_palette (scaled_font, face, &num_palette_entries, &palette); |
| 3078 | |
| 3079 | if (!_cairo_matrix_is_scale_0 (&scaled_font->base.scale)) { |
| 3080 | cairo_pattern_t *foreground_pattern = _cairo_pattern_create_solid (foreground_color); |
| 3081 | status = _cairo_render_svg_glyph (svg_document, |
| 3082 | svg_doc->start_glyph_id, |
| 3083 | svg_doc->end_glyph_id, |
| 3084 | _cairo_scaled_glyph_index(scaled_glyph)((unsigned long)((scaled_glyph)->hash_entry.hash & 0xffffff )), |
| 3085 | svg_doc->units_per_EM, |
| 3086 | palette, |
| 3087 | num_palette_entries, |
| 3088 | cr, |
| 3089 | foreground_pattern, |
| 3090 | &foreground_source_used); |
| 3091 | cairo_pattern_destroy_moz_cairo_pattern_destroy (foreground_pattern); |
| 3092 | if (status == CAIRO_STATUS_SUCCESS) |
| 3093 | status = cairo_status_moz_cairo_status (cr); |
| 3094 | } |
| 3095 | |
| 3096 | cairo_destroy_moz_cairo_destroy (cr); |
| 3097 | free (svg_document); |
| 3098 | |
| 3099 | if (status) { |
| 3100 | cairo_surface_destroy_moz_cairo_surface_destroy (recording_surface); |
| 3101 | scaled_glyph->color_glyph = FALSE0; |
| 3102 | scaled_glyph->color_glyph_set = TRUE1; |
| 3103 | return status; |
| 3104 | } |
| 3105 | |
| 3106 | _cairo_scaled_glyph_set_recording_surface (scaled_glyph, |
| 3107 | &scaled_font->base, |
| 3108 | recording_surface, |
| 3109 | foreground_source_used ? foreground_color : NULL((void*)0)); |
| 3110 | |
| 3111 | scaled_glyph->color_glyph = TRUE1; |
| 3112 | scaled_glyph->color_glyph_set = TRUE1; |
| 3113 | |
| 3114 | /* get metrics */ |
| 3115 | |
| 3116 | /* Copied from cairo-user-font.c */ |
| 3117 | cairo_matrix_t extent_scale; |
| 3118 | double extent_x_scale; |
| 3119 | double extent_y_scale; |
| 3120 | double snap_x_scale; |
| 3121 | double snap_y_scale; |
| 3122 | double fixed_scale, x_scale, y_scale; |
| 3123 | |
| 3124 | extent_scale = scaled_font->base.scale_inverse; |
| 3125 | snap_x_scale = 1.0; |
| 3126 | snap_y_scale = 1.0; |
| 3127 | status = _cairo_matrix_compute_basis_scale_factors (&extent_scale, |
| 3128 | &x_scale, &y_scale, |
| 3129 | 1); |
| 3130 | if (status == CAIRO_STATUS_SUCCESS) { |
| 3131 | if (x_scale == 0) |
| 3132 | x_scale = 1; |
| 3133 | if (y_scale == 0) |
| 3134 | y_scale = 1; |
| 3135 | |
| 3136 | snap_x_scale = x_scale; |
| 3137 | snap_y_scale = y_scale; |
| 3138 | |
| 3139 | /* since glyphs are pretty much 1.0x1.0, we can reduce error by |
| 3140 | * scaling to a larger square. say, 1024.x1024. */ |
| 3141 | fixed_scale = 1024; |
| 3142 | x_scale /= fixed_scale; |
| 3143 | y_scale /= fixed_scale; |
| 3144 | |
| 3145 | cairo_matrix_scale_moz_cairo_matrix_scale (&extent_scale, 1.0 / x_scale, 1.0 / y_scale); |
| 3146 | |
| 3147 | extent_x_scale = x_scale; |
| 3148 | extent_y_scale = y_scale; |
| 3149 | } |
| 3150 | |
| 3151 | { |
| 3152 | /* compute width / height */ |
| 3153 | cairo_box_t bbox; |
| 3154 | double x1, y1, x2, y2; |
| 3155 | double x_scale, y_scale; |
| 3156 | |
| 3157 | /* Compute extents.x/y/width/height from recording_surface, |
| 3158 | * in font space. |
| 3159 | */ |
| 3160 | status = _cairo_recording_surface_get_bbox ((cairo_recording_surface_t *) recording_surface, |
| 3161 | &bbox, |
| 3162 | &extent_scale); |
| 3163 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3164 | return status; |
| 3165 | |
| 3166 | _cairo_box_to_doubles (&bbox, &x1, &y1, &x2, &y2); |
| 3167 | |
| 3168 | x_scale = extent_x_scale; |
| 3169 | y_scale = extent_y_scale; |
| 3170 | extents->x_bearing = x1 * x_scale; |
| 3171 | extents->y_bearing = y1 * y_scale; |
| 3172 | extents->width = (x2 - x1) * x_scale; |
| 3173 | extents->height = (y2 - y1) * y_scale; |
| 3174 | } |
| 3175 | |
| 3176 | if (scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF) { |
| 3177 | extents->x_advance = _cairo_lround (extents->x_advance / snap_x_scale) * snap_x_scale; |
| 3178 | extents->y_advance = _cairo_lround (extents->y_advance / snap_y_scale) * snap_y_scale; |
| 3179 | } |
| 3180 | |
| 3181 | return status; |
| 3182 | #else |
| 3183 | return CAIRO_INT_STATUS_UNSUPPORTED; |
| 3184 | #endif |
| 3185 | } |
| 3186 | |
| 3187 | static cairo_int_status_t |
| 3188 | _cairo_ft_scaled_glyph_init_surface_for_recording_surface (cairo_ft_scaled_font_t *scaled_font, |
| 3189 | cairo_scaled_glyph_t *scaled_glyph, |
| 3190 | const cairo_color_t *foreground_color) |
| 3191 | { |
| 3192 | cairo_surface_t *surface; |
| 3193 | int width, height; |
| 3194 | cairo_int_status_t status = CAIRO_STATUS_SUCCESS; |
| 3195 | cairo_bool_t foreground_used; |
| 3196 | |
| 3197 | width = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.x) - |
| 3198 | _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x); |
| 3199 | height = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.y) - |
| 3200 | _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y); |
| 3201 | |
| 3202 | surface = cairo_image_surface_create_moz_cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); |
| 3203 | |
| 3204 | cairo_surface_set_device_offset_moz_cairo_surface_set_device_offset (surface, |
| 3205 | - _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x), |
| 3206 | - _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y)); |
| 3207 | |
| 3208 | status = _cairo_recording_surface_replay_with_foreground_color (scaled_glyph->recording_surface, |
| 3209 | surface, |
| 3210 | foreground_color, |
| 3211 | &foreground_used); |
| 3212 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 3213 | cairo_surface_destroy_moz_cairo_surface_destroy(surface); |
| 3214 | return status; |
| 3215 | } |
| 3216 | |
| 3217 | _cairo_scaled_glyph_set_color_surface (scaled_glyph, |
| 3218 | &scaled_font->base, |
| 3219 | (cairo_image_surface_t *)surface, |
| 3220 | foreground_used ? foreground_color : NULL((void*)0)); |
| 3221 | surface = NULL((void*)0); |
| 3222 | |
| 3223 | if (surface) |
| 3224 | cairo_surface_destroy_moz_cairo_surface_destroy (surface); |
| 3225 | |
| 3226 | return status; |
| 3227 | } |
| 3228 | |
| 3229 | static void |
| 3230 | _cairo_ft_scaled_glyph_get_metrics (cairo_ft_scaled_font_t *scaled_font, |
| 3231 | FT_Face face, |
| 3232 | cairo_bool_t vertical_layout, |
| 3233 | int load_flags, |
| 3234 | cairo_text_extents_t *fs_metrics) |
| 3235 | { |
| 3236 | FT_Glyph_Metrics *metrics; |
| 3237 | double x_factor, y_factor; |
| 3238 | cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; |
| 3239 | cairo_bool_t hint_metrics = scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF; |
| 3240 | FT_GlyphSlot glyph = face->glyph; |
| 3241 | |
| 3242 | /* |
| 3243 | * Compute font-space metrics |
| 3244 | */ |
| 3245 | metrics = &glyph->metrics; |
| 3246 | |
| 3247 | if (unscaled->x_scale == 0) |
| 3248 | x_factor = 0; |
| 3249 | else |
| 3250 | x_factor = 1 / unscaled->x_scale; |
| 3251 | |
| 3252 | if (unscaled->y_scale == 0) |
| 3253 | y_factor = 0; |
| 3254 | else |
| 3255 | y_factor = 1 / unscaled->y_scale; |
| 3256 | |
| 3257 | /* |
| 3258 | * Note: Y coordinates of the horizontal bearing need to be negated. |
| 3259 | * |
| 3260 | * Scale metrics back to glyph space from the scaled glyph space returned |
| 3261 | * by FreeType |
| 3262 | * |
| 3263 | * If we want hinted metrics but aren't asking for hinted glyphs from |
| 3264 | * FreeType, then we need to do the metric hinting ourselves. |
| 3265 | */ |
| 3266 | |
| 3267 | if (hint_metrics && (load_flags & FT_LOAD_NO_HINTING( 1L << 1 ))) |
| 3268 | { |
| 3269 | FT_Pos x1, x2; |
| 3270 | FT_Pos y1, y2; |
| 3271 | FT_Pos advance; |
| 3272 | |
| 3273 | if (!vertical_layout) { |
| 3274 | x1 = (metrics->horiBearingX) & -64; |
| 3275 | x2 = (metrics->horiBearingX + metrics->width + 63) & -64; |
| 3276 | y1 = (-metrics->horiBearingY) & -64; |
| 3277 | y2 = (-metrics->horiBearingY + metrics->height + 63) & -64; |
| 3278 | |
| 3279 | advance = ((metrics->horiAdvance + 32) & -64); |
| 3280 | |
| 3281 | fs_metrics->x_bearing = DOUBLE_FROM_26_6 (x1)((double)(x1) / 64.0) * x_factor; |
| 3282 | fs_metrics->y_bearing = DOUBLE_FROM_26_6 (y1)((double)(y1) / 64.0) * y_factor; |
| 3283 | |
| 3284 | fs_metrics->width = DOUBLE_FROM_26_6 (x2 - x1)((double)(x2 - x1) / 64.0) * x_factor; |
| 3285 | fs_metrics->height = DOUBLE_FROM_26_6 (y2 - y1)((double)(y2 - y1) / 64.0) * y_factor; |
| 3286 | |
| 3287 | fs_metrics->x_advance = DOUBLE_FROM_26_6 (advance)((double)(advance) / 64.0) * x_factor; |
| 3288 | fs_metrics->y_advance = 0; |
| 3289 | } else { |
| 3290 | x1 = (metrics->vertBearingX) & -64; |
| 3291 | x2 = (metrics->vertBearingX + metrics->width + 63) & -64; |
| 3292 | y1 = (metrics->vertBearingY) & -64; |
| 3293 | y2 = (metrics->vertBearingY + metrics->height + 63) & -64; |
| 3294 | |
| 3295 | advance = ((metrics->vertAdvance + 32) & -64); |
| 3296 | |
| 3297 | fs_metrics->x_bearing = DOUBLE_FROM_26_6 (x1)((double)(x1) / 64.0) * x_factor; |
| 3298 | fs_metrics->y_bearing = DOUBLE_FROM_26_6 (y1)((double)(y1) / 64.0) * y_factor; |
| 3299 | |
| 3300 | fs_metrics->width = DOUBLE_FROM_26_6 (x2 - x1)((double)(x2 - x1) / 64.0) * x_factor; |
| 3301 | fs_metrics->height = DOUBLE_FROM_26_6 (y2 - y1)((double)(y2 - y1) / 64.0) * y_factor; |
| 3302 | |
| 3303 | fs_metrics->x_advance = 0; |
| 3304 | fs_metrics->y_advance = DOUBLE_FROM_26_6 (advance)((double)(advance) / 64.0) * y_factor; |
| 3305 | } |
| 3306 | } else { |
| 3307 | fs_metrics->width = DOUBLE_FROM_26_6 (metrics->width)((double)(metrics->width) / 64.0) * x_factor; |
| 3308 | fs_metrics->height = DOUBLE_FROM_26_6 (metrics->height)((double)(metrics->height) / 64.0) * y_factor; |
| 3309 | |
| 3310 | if (!vertical_layout) { |
| 3311 | fs_metrics->x_bearing = DOUBLE_FROM_26_6 (metrics->horiBearingX)((double)(metrics->horiBearingX) / 64.0) * x_factor; |
| 3312 | fs_metrics->y_bearing = DOUBLE_FROM_26_6 (-metrics->horiBearingY)((double)(-metrics->horiBearingY) / 64.0) * y_factor; |
| 3313 | |
| 3314 | if (hint_metrics || glyph->format != FT_GLYPH_FORMAT_OUTLINE) |
| 3315 | fs_metrics->x_advance = DOUBLE_FROM_26_6 (metrics->horiAdvance)((double)(metrics->horiAdvance) / 64.0) * x_factor; |
| 3316 | else |
| 3317 | fs_metrics->x_advance = DOUBLE_FROM_16_16 (glyph->linearHoriAdvance)((double)(glyph->linearHoriAdvance) / 65536.0) * x_factor; |
| 3318 | fs_metrics->y_advance = 0 * y_factor; |
| 3319 | } else { |
| 3320 | fs_metrics->x_bearing = DOUBLE_FROM_26_6 (metrics->vertBearingX)((double)(metrics->vertBearingX) / 64.0) * x_factor; |
| 3321 | fs_metrics->y_bearing = DOUBLE_FROM_26_6 (metrics->vertBearingY)((double)(metrics->vertBearingY) / 64.0) * y_factor; |
| 3322 | |
| 3323 | fs_metrics->x_advance = 0 * x_factor; |
| 3324 | if (hint_metrics || glyph->format != FT_GLYPH_FORMAT_OUTLINE) |
| 3325 | fs_metrics->y_advance = DOUBLE_FROM_26_6 (metrics->vertAdvance)((double)(metrics->vertAdvance) / 64.0) * y_factor; |
| 3326 | else |
| 3327 | fs_metrics->y_advance = DOUBLE_FROM_16_16 (glyph->linearVertAdvance)((double)(glyph->linearVertAdvance) / 65536.0) * y_factor; |
| 3328 | } |
| 3329 | } |
| 3330 | } |
| 3331 | |
| 3332 | static cairo_bool_t |
| 3333 | _cairo_ft_scaled_glyph_is_colr_v0 (cairo_ft_scaled_font_t *scaled_font, |
| 3334 | cairo_scaled_glyph_t *scaled_glyph, |
| 3335 | FT_Face face) |
| 3336 | { |
| 3337 | #ifdef HAVE_FT_PALETTE_SELECT |
| 3338 | FT_LayerIterator iterator; |
| 3339 | FT_UInt layer_glyph_index; |
| 3340 | FT_UInt layer_color_index; |
| 3341 | |
| 3342 | iterator.p = NULL((void*)0); |
| 3343 | if (FT_Get_Color_Glyph_Layer(face, |
| 3344 | _cairo_scaled_glyph_index (scaled_glyph)((unsigned long)((scaled_glyph)->hash_entry.hash & 0xffffff )), |
| 3345 | &layer_glyph_index, |
| 3346 | &layer_color_index, |
| 3347 | &iterator) == 1) |
| 3348 | { |
| 3349 | return TRUE1; |
| 3350 | } |
| 3351 | #endif |
| 3352 | return FALSE0; |
| 3353 | } |
| 3354 | |
| 3355 | static cairo_bool_t |
| 3356 | _cairo_ft_scaled_glyph_is_colr_v1 (cairo_ft_scaled_font_t *scaled_font, |
| 3357 | cairo_scaled_glyph_t *scaled_glyph, |
| 3358 | FT_Face face) |
| 3359 | { |
| 3360 | #if HAVE_FT_COLR_V1 |
| 3361 | FT_OpaquePaint paint = { NULL((void*)0), 0 }; |
| 3362 | |
| 3363 | if (FT_Get_Color_Glyph_Paint (face, |
| 3364 | _cairo_scaled_glyph_index (scaled_glyph)((unsigned long)((scaled_glyph)->hash_entry.hash & 0xffffff )), |
| 3365 | FT_COLOR_INCLUDE_ROOT_TRANSFORM, |
| 3366 | &paint) == 1) |
| 3367 | { |
| 3368 | return TRUE1; |
| 3369 | } |
| 3370 | #endif |
| 3371 | return FALSE0; |
| 3372 | } |
| 3373 | |
| 3374 | static const int ft_glyph_private_key; |
| 3375 | |
| 3376 | static cairo_int_status_t |
| 3377 | _cairo_ft_scaled_glyph_init_metrics (cairo_ft_scaled_font_t *scaled_font, |
| 3378 | cairo_scaled_glyph_t *scaled_glyph, |
| 3379 | FT_Face face, |
| 3380 | cairo_bool_t vertical_layout, |
| 3381 | int load_flags, |
| 3382 | const cairo_color_t *foreground_color) |
| 3383 | { |
| 3384 | cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; |
| 3385 | cairo_text_extents_t fs_metrics; |
| 3386 | cairo_ft_glyph_private_t *glyph_priv; |
| 3387 | |
| 3388 | cairo_bool_t hint_metrics = scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF; |
| 3389 | |
| 3390 | /* _cairo_ft_scaled_glyph_init_metrics() is called once the first |
| 3391 | * time a cairo_scaled_glyph_t is created. We first allocate the |
| 3392 | * cairo_ft_glyph_private_t struct and determine the glyph type. |
| 3393 | */ |
| 3394 | |
| 3395 | glyph_priv = _cairo_malloc (sizeof (*glyph_priv))((sizeof (*glyph_priv)) != 0 ? malloc(sizeof (*glyph_priv)) : ((void*)0)); |
| 3396 | if (unlikely (glyph_priv == NULL)(__builtin_expect (!!(glyph_priv == ((void*)0)), 0))) |
| 3397 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 3398 | |
| 3399 | _cairo_scaled_glyph_attach_private (scaled_glyph, &glyph_priv->base, |
| 3400 | &ft_glyph_private_key, |
| 3401 | _cairo_ft_glyph_fini); |
| 3402 | |
| 3403 | /* We need to load color to determine if this is a color format. */ |
| 3404 | int color_flag = 0; |
| 3405 | |
| 3406 | #ifdef FT_LOAD_COLOR( 1L << 20 ) |
| 3407 | if (scaled_font->unscaled->have_color && scaled_font->base.options.color_mode != CAIRO_COLOR_MODE_NO_COLOR) |
| 3408 | color_flag = FT_LOAD_COLOR( 1L << 20 ); |
| 3409 | #endif |
| 3410 | /* Ensure use_em_size = FALSE as the format (bitmap or outline) |
| 3411 | * may change with the size. */ |
| 3412 | status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, |
| 3413 | scaled_glyph, |
| 3414 | face, |
| 3415 | load_flags | color_flag, |
| 3416 | FALSE0, |
| 3417 | vertical_layout); |
| 3418 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3419 | return status; |
| 3420 | |
| 3421 | cairo_bool_t is_svg_format = FALSE0; |
| 3422 | #if HAVE_FT_SVG_DOCUMENT |
| 3423 | if (face->glyph->format == FT_GLYPH_FORMAT_SVG) |
| 3424 | is_svg_format = TRUE1; |
| 3425 | #endif |
| 3426 | |
| 3427 | if (is_svg_format) { |
| 3428 | glyph_priv->format = CAIRO_FT_GLYPH_TYPE_SVG; |
| 3429 | } else if (face->glyph->format == FT_GLYPH_FORMAT_OUTLINE) { |
| 3430 | glyph_priv->format = CAIRO_FT_GLYPH_TYPE_OUTLINE; |
| 3431 | if (color_flag) { |
| 3432 | if (_cairo_ft_scaled_glyph_is_colr_v1 (scaled_font, scaled_glyph, face)) |
| 3433 | glyph_priv->format = CAIRO_FT_GLYPH_TYPE_COLR_V1; |
| 3434 | else if (_cairo_ft_scaled_glyph_is_colr_v0 (scaled_font, scaled_glyph, face)) |
| 3435 | glyph_priv->format = CAIRO_FT_GLYPH_TYPE_COLR_V0; |
| 3436 | } |
| 3437 | } else { |
| 3438 | /* For anything else we let FreeType render a bitmap. */ |
| 3439 | glyph_priv->format = CAIRO_FT_GLYPH_TYPE_BITMAP; |
| 3440 | } |
| 3441 | |
| 3442 | /* If hinting is off, load the glyph with font size set the the em size. */ |
| 3443 | if (!hint_metrics) { |
| 3444 | status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, |
| 3445 | scaled_glyph, |
| 3446 | face, |
| 3447 | load_flags | color_flag, |
| 3448 | TRUE1, |
| 3449 | vertical_layout); |
| 3450 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3451 | return status; |
| 3452 | } |
| 3453 | |
| 3454 | _cairo_ft_scaled_glyph_get_metrics (scaled_font, |
| 3455 | face, |
| 3456 | vertical_layout, |
| 3457 | load_flags, |
| 3458 | &fs_metrics); |
| 3459 | |
| 3460 | |
| 3461 | /* SVG and COLRv1 glyphs require the bounding box to be obtained |
| 3462 | * from the ink extents of the rendering. We need to render glyph |
| 3463 | * to a recording surface to obtain these extents. But we also |
| 3464 | * need the advance from _cairo_ft_scaled_glyph_get_metrics() |
| 3465 | * before calling this function. |
| 3466 | */ |
| 3467 | |
| 3468 | if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_SVG) { |
| 3469 | status = (cairo_int_status_t)_cairo_ft_scaled_glyph_init_record_svg_glyph (scaled_font, |
| 3470 | scaled_glyph, |
| 3471 | face, |
| 3472 | foreground_color, |
| 3473 | &fs_metrics); |
| 3474 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3475 | return status; |
| 3476 | } |
| 3477 | |
| 3478 | if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V1) { |
| 3479 | /* Restore font size if previously loaded at em_size. */ |
| 3480 | if (!hint_metrics) { |
| 3481 | status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, |
| 3482 | scaled_glyph, |
| 3483 | face, |
| 3484 | load_flags | color_flag, |
| 3485 | FALSE0, |
| 3486 | vertical_layout); |
| 3487 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3488 | return status; |
| 3489 | } |
| 3490 | |
| 3491 | status = (cairo_int_status_t)_cairo_ft_scaled_glyph_init_record_colr_v1_glyph (scaled_font, |
| 3492 | scaled_glyph, |
| 3493 | face, |
| 3494 | foreground_color, |
| 3495 | &fs_metrics); |
| 3496 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3497 | return status; |
| 3498 | } |
| 3499 | |
| 3500 | _cairo_scaled_glyph_set_metrics (scaled_glyph, |
| 3501 | &scaled_font->base, |
| 3502 | &fs_metrics); |
| 3503 | |
| 3504 | return status; |
| 3505 | } |
| 3506 | |
| 3507 | static cairo_int_status_t |
| 3508 | _cairo_ft_scaled_glyph_init (void *abstract_font, |
| 3509 | cairo_scaled_glyph_t *scaled_glyph, |
| 3510 | cairo_scaled_glyph_info_t info, |
| 3511 | const cairo_color_t *foreground_color) |
| 3512 | { |
| 3513 | cairo_ft_scaled_font_t *scaled_font = abstract_font; |
| 3514 | cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; |
| 3515 | FT_Face face; |
| 3516 | int load_flags = scaled_font->ft_options.load_flags; |
| 3517 | cairo_bool_t vertical_layout = FALSE0; |
| 3518 | cairo_status_t status = CAIRO_STATUS_SUCCESS; |
| 3519 | cairo_ft_glyph_private_t *glyph_priv; |
| 3520 | int color_flag = 0; |
| 3521 | |
| 3522 | #ifdef FT_LOAD_COLOR( 1L << 20 ) |
| 3523 | color_flag = FT_LOAD_COLOR( 1L << 20 ); |
| 3524 | #endif |
| 3525 | |
| 3526 | face = _cairo_ft_unscaled_font_lock_face (unscaled); |
| 3527 | if (!face) |
| 3528 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 3529 | |
| 3530 | /* Ignore global advance unconditionally */ |
| 3531 | load_flags |= FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH( 1L << 9 ); |
| 3532 | |
| 3533 | if ((info & CAIRO_SCALED_GLYPH_INFO_PATH) != 0 && |
| 3534 | (info & (CAIRO_SCALED_GLYPH_INFO_SURFACE | |
| 3535 | CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE)) == 0) { |
| 3536 | load_flags |= FT_LOAD_NO_BITMAP( 1L << 3 ); |
| 3537 | } |
| 3538 | |
| 3539 | /* |
| 3540 | * Don't pass FT_LOAD_VERTICAL_LAYOUT to FT_Load_Glyph here as |
| 3541 | * suggested by freetype people. |
| 3542 | */ |
| 3543 | if (load_flags & FT_LOAD_VERTICAL_LAYOUT( 1L << 4 )) { |
| 3544 | load_flags &= ~FT_LOAD_VERTICAL_LAYOUT( 1L << 4 ); |
| 3545 | vertical_layout = TRUE1; |
| 3546 | } |
| 3547 | |
| 3548 | /* Metrics will always be requested when a scaled glyph is created */ |
| 3549 | if (info & CAIRO_SCALED_GLYPH_INFO_METRICS) { |
| 3550 | status = _cairo_ft_scaled_glyph_init_metrics (scaled_font, |
| 3551 | scaled_glyph, |
| 3552 | face, |
| 3553 | vertical_layout, |
| 3554 | load_flags, |
| 3555 | foreground_color); |
| 3556 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3557 | goto FAIL; |
| 3558 | } |
| 3559 | |
| 3560 | glyph_priv = (cairo_ft_glyph_private_t *) _cairo_scaled_glyph_find_private (scaled_glyph, |
| 3561 | &ft_glyph_private_key); |
| 3562 | assert (glyph_priv != NULL)((void) sizeof ((glyph_priv != ((void*)0)) ? 1 : 0), __extension__ ({ if (glyph_priv != ((void*)0)) ; else __assert_fail ("glyph_priv != NULL" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 3562 , __extension__ __PRETTY_FUNCTION__); })); |
| 3563 | |
| 3564 | if (info & CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE) { |
| 3565 | status = CAIRO_INT_STATUS_UNSUPPORTED; |
| 3566 | if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_SVG || |
| 3567 | glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V0 || |
| 3568 | glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V1) |
| 3569 | { |
| 3570 | status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, |
| 3571 | scaled_glyph, |
| 3572 | face, |
| 3573 | load_flags | color_flag, |
| 3574 | FALSE0, |
| 3575 | vertical_layout); |
| 3576 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3577 | goto FAIL; |
| 3578 | |
| 3579 | if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_SVG) { |
| 3580 | status = _cairo_ft_scaled_glyph_init_record_svg_glyph (scaled_font, |
| 3581 | scaled_glyph, |
| 3582 | face, |
| 3583 | foreground_color, |
| 3584 | &scaled_glyph->fs_metrics); |
| 3585 | } else if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V1) { |
| 3586 | status = _cairo_ft_scaled_glyph_init_record_colr_v1_glyph (scaled_font, |
| 3587 | scaled_glyph, |
| 3588 | face, |
| 3589 | foreground_color, |
| 3590 | &scaled_glyph->fs_metrics); |
| 3591 | } else if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V0) { |
| 3592 | status = _cairo_ft_scaled_glyph_init_record_colr_v0_glyph (scaled_font, |
| 3593 | scaled_glyph, |
| 3594 | face, |
| 3595 | vertical_layout, |
| 3596 | load_flags); |
| 3597 | } |
| 3598 | } |
| 3599 | if (status) |
| 3600 | goto FAIL; |
| 3601 | } |
| 3602 | |
| 3603 | if ((info & CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) && scaled_font->base.options.color_mode != CAIRO_COLOR_MODE_NO_COLOR) { |
| 3604 | if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_SVG || |
| 3605 | glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V1) |
| 3606 | { |
| 3607 | status = _cairo_ft_scaled_glyph_init_surface_for_recording_surface (scaled_font, |
| 3608 | scaled_glyph, |
| 3609 | foreground_color); |
| 3610 | } else { |
| 3611 | status = _cairo_ft_scaled_glyph_init_surface (scaled_font, |
| 3612 | scaled_glyph, |
| 3613 | glyph_priv, |
| 3614 | CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE, |
| 3615 | face, |
| 3616 | foreground_color, |
| 3617 | vertical_layout, |
| 3618 | load_flags); |
| 3619 | } |
| 3620 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3621 | goto FAIL; |
| 3622 | } |
| 3623 | |
| 3624 | if (info & CAIRO_SCALED_GLYPH_INFO_SURFACE) { |
| 3625 | status = _cairo_ft_scaled_glyph_init_surface (scaled_font, |
| 3626 | scaled_glyph, |
| 3627 | glyph_priv, |
| 3628 | CAIRO_SCALED_GLYPH_INFO_SURFACE, |
| 3629 | face, |
| 3630 | NULL((void*)0), /* foreground color */ |
| 3631 | vertical_layout, |
| 3632 | load_flags); |
| 3633 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3634 | goto FAIL; |
| 3635 | } |
| 3636 | |
| 3637 | if (info & CAIRO_SCALED_GLYPH_INFO_PATH) { |
| 3638 | cairo_path_fixed_t *path = NULL((void*)0); /* hide compiler warning */ |
| 3639 | |
| 3640 | /* Load non-color glyph */ |
| 3641 | status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, |
| 3642 | scaled_glyph, |
| 3643 | face, |
| 3644 | load_flags, |
| 3645 | FALSE0, |
| 3646 | vertical_layout); |
| 3647 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3648 | goto FAIL; |
| 3649 | |
| 3650 | if (face->glyph->format == FT_GLYPH_FORMAT_OUTLINE) |
| 3651 | status = _cairo_ft_face_decompose_glyph_outline (face, &path); |
| 3652 | else |
| 3653 | status = CAIRO_INT_STATUS_UNSUPPORTED; |
| 3654 | |
| 3655 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 3656 | goto FAIL; |
| 3657 | |
| 3658 | _cairo_scaled_glyph_set_path (scaled_glyph, |
| 3659 | &scaled_font->base, |
| 3660 | path); |
| 3661 | } |
| 3662 | FAIL: |
| 3663 | _cairo_ft_unscaled_font_unlock_face (unscaled); |
| 3664 | |
| 3665 | return status; |
| 3666 | } |
| 3667 | |
| 3668 | static unsigned long |
| 3669 | _cairo_ft_ucs4_to_index (void *abstract_font, |
| 3670 | uint32_t ucs4) |
| 3671 | { |
| 3672 | cairo_ft_scaled_font_t *scaled_font = abstract_font; |
| 3673 | cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; |
| 3674 | FT_Face face; |
| 3675 | FT_UInt index; |
| 3676 | |
| 3677 | face = _cairo_ft_unscaled_font_lock_face (unscaled); |
| 3678 | if (!face) |
| 3679 | return 0; |
| 3680 | |
| 3681 | #if CAIRO_HAS_FC_FONT1 |
| 3682 | index = FcFreeTypeCharIndex (face, ucs4); |
| 3683 | #else |
| 3684 | index = FT_Get_Char_Index (face, ucs4); |
| 3685 | #endif |
| 3686 | |
| 3687 | _cairo_ft_unscaled_font_unlock_face (unscaled); |
| 3688 | return index; |
| 3689 | } |
| 3690 | |
| 3691 | static cairo_int_status_t |
| 3692 | _cairo_ft_load_truetype_table (void *abstract_font, |
| 3693 | unsigned long tag, |
| 3694 | long offset, |
| 3695 | unsigned char *buffer, |
| 3696 | unsigned long *length) |
| 3697 | { |
| 3698 | cairo_ft_scaled_font_t *scaled_font = abstract_font; |
| 3699 | cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; |
| 3700 | FT_Face face; |
| 3701 | cairo_status_t status = CAIRO_INT_STATUS_UNSUPPORTED; |
| 3702 | |
| 3703 | /* We don't support the FreeType feature of loading a table |
| 3704 | * without specifying the size since this may overflow our |
| 3705 | * buffer. */ |
| 3706 | assert (length != NULL)((void) sizeof ((length != ((void*)0)) ? 1 : 0), __extension__ ({ if (length != ((void*)0)) ; else __assert_fail ("length != NULL" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 3706 , __extension__ __PRETTY_FUNCTION__); })); |
| 3707 | |
| 3708 | if (_cairo_ft_scaled_font_is_vertical (&scaled_font->base)) |
| 3709 | return CAIRO_INT_STATUS_UNSUPPORTED; |
| 3710 | |
| 3711 | #if HAVE_FT_LOAD_SFNT_TABLE1 |
| 3712 | face = _cairo_ft_unscaled_font_lock_face (unscaled); |
| 3713 | if (!face) |
| 3714 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 3715 | |
| 3716 | if (FT_IS_SFNT (face)( !!( (face)->face_flags & ( 1L << 3 ) ) )) { |
| 3717 | if (buffer == NULL((void*)0)) |
| 3718 | *length = 0; |
| 3719 | |
| 3720 | if (FT_Load_Sfnt_Table (face, tag, offset, buffer, length) == 0) |
| 3721 | status = CAIRO_STATUS_SUCCESS; |
| 3722 | } |
| 3723 | |
| 3724 | _cairo_ft_unscaled_font_unlock_face (unscaled); |
| 3725 | #endif |
| 3726 | |
| 3727 | return status; |
| 3728 | } |
| 3729 | |
| 3730 | static cairo_int_status_t |
| 3731 | _cairo_ft_index_to_ucs4(void *abstract_font, |
| 3732 | unsigned long index, |
| 3733 | uint32_t *ucs4) |
| 3734 | { |
| 3735 | cairo_ft_scaled_font_t *scaled_font = abstract_font; |
| 3736 | cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; |
| 3737 | FT_Face face; |
| 3738 | FT_ULong charcode; |
| 3739 | FT_UInt gindex; |
| 3740 | |
| 3741 | face = _cairo_ft_unscaled_font_lock_face (unscaled); |
| 3742 | if (!face) |
| 3743 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 3744 | |
| 3745 | *ucs4 = (uint32_t) -1; |
| 3746 | charcode = FT_Get_First_Char(face, &gindex); |
| 3747 | while (gindex != 0) { |
| 3748 | if (gindex == index) { |
| 3749 | *ucs4 = charcode; |
| 3750 | break; |
| 3751 | } |
| 3752 | charcode = FT_Get_Next_Char (face, charcode, &gindex); |
| 3753 | } |
| 3754 | |
| 3755 | _cairo_ft_unscaled_font_unlock_face (unscaled); |
| 3756 | |
| 3757 | return CAIRO_STATUS_SUCCESS; |
| 3758 | } |
| 3759 | |
| 3760 | static cairo_int_status_t |
| 3761 | _cairo_ft_is_synthetic (void *abstract_font, |
| 3762 | cairo_bool_t *is_synthetic) |
| 3763 | { |
| 3764 | cairo_int_status_t status = CAIRO_STATUS_SUCCESS; |
| 3765 | cairo_ft_scaled_font_t *scaled_font = abstract_font; |
| 3766 | cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; |
| 3767 | FT_Face face; |
| 3768 | FT_Error error; |
| 3769 | |
| 3770 | static GetVarFunc getVar; |
| 3771 | static DoneVarFunc doneVar; |
| 3772 | static GetVarBlendCoordsFunc getVarBlendCoords; |
| 3773 | |
| 3774 | static int firstTime = 1; |
| 3775 | if (firstTime) { |
| 3776 | getVar = (GetVarFunc) dlsym (RTLD_DEFAULT((void *) 0), "FT_Get_MM_Var"); |
| 3777 | doneVar = (DoneVarFunc) dlsym (RTLD_DEFAULT((void *) 0), "FT_Done_MM_Var"); |
| 3778 | getVarBlendCoords = (GetVarBlendCoordsFunc) dlsym (RTLD_DEFAULT((void *) 0), "FT_Get_Var_Blend_Coordinates"); |
| 3779 | firstTime = 0; |
| 3780 | } |
| 3781 | |
| 3782 | if (scaled_font->ft_options.synth_flags != 0) { |
| 3783 | *is_synthetic = TRUE1; |
| 3784 | return status; |
| 3785 | } |
| 3786 | |
| 3787 | *is_synthetic = FALSE0; |
| 3788 | face = _cairo_ft_unscaled_font_lock_face (unscaled); |
| 3789 | if (!face) |
| 3790 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 3791 | |
| 3792 | if (face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS( 1L << 8 )) { |
| 3793 | FT_MM_Var *mm_var = NULL((void*)0); |
| 3794 | FT_Fixed *coords = NULL((void*)0); |
| 3795 | int num_axis; |
| 3796 | |
| 3797 | /* If this is an MM or variable font we can't assume the current outlines |
| 3798 | * are the same as the font tables */ |
| 3799 | *is_synthetic = TRUE1; |
| 3800 | |
| 3801 | error = getVar ? (*getVar) (face, &mm_var) : -1; |
| 3802 | if (error) { |
| 3803 | status = _cairo_error (_cairo_ft_to_cairo_error (error)); |
| 3804 | goto cleanup; |
| 3805 | } |
| 3806 | |
| 3807 | num_axis = mm_var->num_axis; |
| 3808 | coords = _cairo_malloc_ab (num_axis, sizeof(FT_Fixed)); |
| 3809 | if (!coords) { |
| 3810 | status = _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 3811 | goto cleanup; |
| 3812 | } |
| 3813 | |
| 3814 | /* If FT_Get_Var_Blend_Coordinates() is available, we can check if the |
| 3815 | * current design coordinates are the default coordinates. In this case |
| 3816 | * the current outlines match the font tables. |
| 3817 | */ |
| 3818 | if (getVarBlendCoords) { |
| 3819 | int i; |
| 3820 | |
| 3821 | (*getVarBlendCoords) (face, num_axis, coords); |
| 3822 | *is_synthetic = FALSE0; |
| 3823 | for (i = 0; i < num_axis; i++) { |
| 3824 | if (coords[i]) { |
| 3825 | *is_synthetic = TRUE1; |
| 3826 | break; |
| 3827 | } |
| 3828 | } |
| 3829 | } |
| 3830 | |
| 3831 | cleanup: |
| 3832 | free (coords); |
| 3833 | if (doneVar) |
| 3834 | (*doneVar) (face->glyph->library, mm_var); |
| 3835 | else |
| 3836 | free (mm_var); |
| 3837 | } |
| 3838 | |
| 3839 | _cairo_ft_unscaled_font_unlock_face (unscaled); |
| 3840 | |
| 3841 | return status; |
| 3842 | } |
| 3843 | |
| 3844 | static cairo_int_status_t |
| 3845 | _cairo_index_to_glyph_name (void *abstract_font, |
| 3846 | char **glyph_names, |
| 3847 | int num_glyph_names, |
| 3848 | unsigned long glyph_index, |
| 3849 | unsigned long *glyph_array_index) |
| 3850 | { |
| 3851 | cairo_ft_scaled_font_t *scaled_font = abstract_font; |
| 3852 | cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; |
| 3853 | FT_Face face; |
| 3854 | char buffer[256]; /* PLRM specifies max name length of 127 */ |
| 3855 | FT_Error error; |
| 3856 | int i; |
| 3857 | |
| 3858 | face = _cairo_ft_unscaled_font_lock_face (unscaled); |
| 3859 | if (!face) |
| 3860 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 3861 | |
| 3862 | error = FT_Get_Glyph_Name (face, glyph_index, buffer, sizeof buffer); |
| 3863 | |
| 3864 | _cairo_ft_unscaled_font_unlock_face (unscaled); |
| 3865 | |
| 3866 | if (error != FT_Err_Ok) { |
| 3867 | /* propagate fatal errors from FreeType */ |
| 3868 | if (error == FT_Err_Out_Of_Memory) |
| 3869 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 3870 | |
| 3871 | return CAIRO_INT_STATUS_UNSUPPORTED; |
| 3872 | } |
| 3873 | |
| 3874 | /* FT first numbers the glyphs in the order they are read from the |
| 3875 | * Type 1 font. Then if .notdef is not the first glyph, the first |
| 3876 | * glyph is swapped with .notdef to ensure that .notdef is at |
| 3877 | * glyph index 0. |
| 3878 | * |
| 3879 | * As all but two glyphs in glyph_names already have the same |
| 3880 | * index as the FT glyph index, we first check if |
| 3881 | * glyph_names[glyph_index] is the name we are looking for. If not |
| 3882 | * we fall back to searching the entire array. |
| 3883 | */ |
| 3884 | |
| 3885 | if ((long)glyph_index < num_glyph_names && |
| 3886 | strcmp (glyph_names[glyph_index], buffer) == 0) |
| 3887 | { |
| 3888 | *glyph_array_index = glyph_index; |
| 3889 | |
| 3890 | return CAIRO_STATUS_SUCCESS; |
| 3891 | } |
| 3892 | |
| 3893 | for (i = 0; i < num_glyph_names; i++) { |
| 3894 | if (strcmp (glyph_names[i], buffer) == 0) { |
| 3895 | *glyph_array_index = i; |
| 3896 | |
| 3897 | return CAIRO_STATUS_SUCCESS; |
| 3898 | } |
| 3899 | } |
| 3900 | |
| 3901 | return CAIRO_INT_STATUS_UNSUPPORTED; |
| 3902 | } |
| 3903 | |
| 3904 | static cairo_bool_t |
| 3905 | _ft_is_type1 (FT_Face face) |
| 3906 | { |
| 3907 | #if HAVE_FT_GET_X11_FONT_FORMAT |
| 3908 | const char *font_format = FT_Get_X11_Font_Format (face); |
| 3909 | if (font_format && |
| 3910 | (strcmp (font_format, "Type 1") == 0 || |
| 3911 | strcmp (font_format, "CFF") == 0)) |
| 3912 | { |
| 3913 | return TRUE1; |
| 3914 | } |
| 3915 | #endif |
| 3916 | |
| 3917 | return FALSE0; |
| 3918 | } |
| 3919 | |
| 3920 | static cairo_int_status_t |
| 3921 | _cairo_ft_load_type1_data (void *abstract_font, |
| 3922 | long offset, |
| 3923 | unsigned char *buffer, |
| 3924 | unsigned long *length) |
| 3925 | { |
| 3926 | cairo_ft_scaled_font_t *scaled_font = abstract_font; |
| 3927 | cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; |
| 3928 | FT_Face face; |
| 3929 | cairo_status_t status = CAIRO_STATUS_SUCCESS; |
| 3930 | unsigned long available_length; |
| 3931 | unsigned long ret; |
| 3932 | |
| 3933 | assert (length != NULL)((void) sizeof ((length != ((void*)0)) ? 1 : 0), __extension__ ({ if (length != ((void*)0)) ; else __assert_fail ("length != NULL" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 3933 , __extension__ __PRETTY_FUNCTION__); })); |
| 3934 | |
| 3935 | if (_cairo_ft_scaled_font_is_vertical (&scaled_font->base)) |
| 3936 | return CAIRO_INT_STATUS_UNSUPPORTED; |
| 3937 | |
| 3938 | face = _cairo_ft_unscaled_font_lock_face (unscaled); |
| 3939 | if (!face) |
| 3940 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 3941 | |
| 3942 | #if HAVE_FT_LOAD_SFNT_TABLE1 |
| 3943 | if (FT_IS_SFNT (face)( !!( (face)->face_flags & ( 1L << 3 ) ) )) { |
| 3944 | status = CAIRO_INT_STATUS_UNSUPPORTED; |
| 3945 | goto unlock; |
| 3946 | } |
| 3947 | #endif |
| 3948 | |
| 3949 | if (! _ft_is_type1 (face)) { |
| 3950 | status = CAIRO_INT_STATUS_UNSUPPORTED; |
| 3951 | goto unlock; |
| 3952 | } |
| 3953 | |
| 3954 | available_length = MAX (face->stream->size - offset, 0)((face->stream->size - offset) > (0) ? (face->stream ->size - offset) : (0)); |
| 3955 | if (!buffer) { |
| 3956 | *length = available_length; |
| 3957 | } else { |
| 3958 | if (*length > available_length) { |
| 3959 | status = CAIRO_INT_STATUS_UNSUPPORTED; |
| 3960 | } else if (face->stream->read != NULL((void*)0)) { |
| 3961 | /* Note that read() may be implemented as a macro, thanks POSIX!, so we |
| 3962 | * need to wrap the following usage in parentheses in order to |
| 3963 | * disambiguate it for the pre-processor - using the verbose function |
| 3964 | * pointer dereference for clarity. |
| 3965 | */ |
| 3966 | ret = (* face->stream->read) (face->stream, |
| 3967 | offset, |
| 3968 | buffer, |
| 3969 | *length); |
| 3970 | if (ret != *length) |
| 3971 | status = _cairo_error (CAIRO_STATUS_READ_ERROR); |
| 3972 | } else { |
| 3973 | memcpy (buffer, face->stream->base + offset, *length); |
| 3974 | } |
| 3975 | } |
| 3976 | |
| 3977 | unlock: |
| 3978 | _cairo_ft_unscaled_font_unlock_face (unscaled); |
| 3979 | |
| 3980 | return status; |
| 3981 | } |
| 3982 | |
| 3983 | static cairo_bool_t |
| 3984 | _cairo_ft_has_color_glyphs (void *scaled) |
| 3985 | { |
| 3986 | cairo_ft_unscaled_font_t *unscaled = ((cairo_ft_scaled_font_t *)scaled)->unscaled; |
| 3987 | |
| 3988 | if (!unscaled->have_color_set) { |
| 3989 | FT_Face face; |
| 3990 | face = _cairo_ft_unscaled_font_lock_face (unscaled); |
| 3991 | if (unlikely (face == NULL)(__builtin_expect (!!(face == ((void*)0)), 0))) |
| 3992 | return FALSE0; |
| 3993 | _cairo_ft_unscaled_font_unlock_face (unscaled); |
| 3994 | } |
| 3995 | |
| 3996 | return unscaled->have_color; |
| 3997 | } |
| 3998 | |
| 3999 | static const cairo_scaled_font_backend_t _cairo_ft_scaled_font_backend = { |
| 4000 | CAIRO_FONT_TYPE_FT, |
| 4001 | _cairo_ft_scaled_font_fini, |
| 4002 | _cairo_ft_scaled_glyph_init, |
| 4003 | NULL((void*)0), /* text_to_glyphs */ |
| 4004 | _cairo_ft_ucs4_to_index, |
| 4005 | _cairo_ft_load_truetype_table, |
| 4006 | _cairo_ft_index_to_ucs4, |
| 4007 | _cairo_ft_is_synthetic, |
| 4008 | _cairo_index_to_glyph_name, |
| 4009 | _cairo_ft_load_type1_data, |
| 4010 | _cairo_ft_has_color_glyphs |
| 4011 | }; |
| 4012 | |
| 4013 | /* #cairo_ft_font_face_t */ |
| 4014 | |
| 4015 | #if CAIRO_HAS_FC_FONT1 |
| 4016 | static cairo_font_face_t * |
| 4017 | _cairo_ft_font_face_create_for_pattern (FcPattern *pattern); |
| 4018 | |
| 4019 | static cairo_status_t |
| 4020 | _cairo_ft_font_face_create_for_toy (cairo_toy_font_face_t *toy_face, |
| 4021 | cairo_font_face_t **font_face_out) |
| 4022 | { |
| 4023 | cairo_font_face_t *font_face = (cairo_font_face_t *) &_cairo_font_face_nil; |
| 4024 | FcPattern *pattern; |
| 4025 | int fcslant; |
| 4026 | int fcweight; |
| 4027 | |
| 4028 | pattern = FcPatternCreate (); |
| 4029 | if (!pattern) { |
| 4030 | _cairo_error_throw (CAIRO_STATUS_NO_MEMORY)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_NO_MEMORY ); (void) status__; } while (0); |
| 4031 | return font_face->status; |
| 4032 | } |
| 4033 | |
| 4034 | if (!FcPatternAddString (pattern, |
| 4035 | FC_FAMILY"family", (unsigned char *) toy_face->family)) |
| 4036 | { |
| 4037 | _cairo_error_throw (CAIRO_STATUS_NO_MEMORY)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_NO_MEMORY ); (void) status__; } while (0); |
| 4038 | goto FREE_PATTERN; |
| 4039 | } |
| 4040 | |
| 4041 | switch (toy_face->slant) |
| 4042 | { |
| 4043 | case CAIRO_FONT_SLANT_ITALIC: |
| 4044 | fcslant = FC_SLANT_ITALIC100; |
| 4045 | break; |
| 4046 | case CAIRO_FONT_SLANT_OBLIQUE: |
| 4047 | fcslant = FC_SLANT_OBLIQUE110; |
| 4048 | break; |
| 4049 | case CAIRO_FONT_SLANT_NORMAL: |
| 4050 | default: |
| 4051 | fcslant = FC_SLANT_ROMAN0; |
| 4052 | break; |
| 4053 | } |
| 4054 | |
| 4055 | if (!FcPatternAddInteger (pattern, FC_SLANT"slant", fcslant)) { |
| 4056 | _cairo_error_throw (CAIRO_STATUS_NO_MEMORY)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_NO_MEMORY ); (void) status__; } while (0); |
| 4057 | goto FREE_PATTERN; |
| 4058 | } |
| 4059 | |
| 4060 | switch (toy_face->weight) |
| 4061 | { |
| 4062 | case CAIRO_FONT_WEIGHT_BOLD: |
| 4063 | fcweight = FC_WEIGHT_BOLD200; |
| 4064 | break; |
| 4065 | case CAIRO_FONT_WEIGHT_NORMAL: |
| 4066 | default: |
| 4067 | fcweight = FC_WEIGHT_MEDIUM100; |
| 4068 | break; |
| 4069 | } |
| 4070 | |
| 4071 | if (!FcPatternAddInteger (pattern, FC_WEIGHT"weight", fcweight)) { |
| 4072 | _cairo_error_throw (CAIRO_STATUS_NO_MEMORY)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_NO_MEMORY ); (void) status__; } while (0); |
| 4073 | goto FREE_PATTERN; |
| 4074 | } |
| 4075 | |
| 4076 | font_face = _cairo_ft_font_face_create_for_pattern (pattern); |
| 4077 | |
| 4078 | FREE_PATTERN: |
| 4079 | FcPatternDestroy (pattern); |
| 4080 | |
| 4081 | *font_face_out = font_face; |
| 4082 | return font_face->status; |
| 4083 | } |
| 4084 | #endif |
| 4085 | |
| 4086 | static cairo_bool_t |
| 4087 | _cairo_ft_font_face_destroy (void *abstract_face) |
| 4088 | { |
| 4089 | cairo_ft_font_face_t *font_face = abstract_face; |
| 4090 | |
| 4091 | /* When destroying a face created by cairo_ft_font_face_create_for_ft_face, |
| 4092 | * we have a special "zombie" state for the face when the unscaled font |
| 4093 | * is still alive but there are no other references to a font face with |
| 4094 | * the same FT_Face. |
| 4095 | * |
| 4096 | * We go from: |
| 4097 | * |
| 4098 | * font_face ------> unscaled |
| 4099 | * <-....weak....../ |
| 4100 | * |
| 4101 | * To: |
| 4102 | * |
| 4103 | * font_face <------- unscaled |
| 4104 | */ |
| 4105 | |
| 4106 | if (font_face->unscaled) { |
| 4107 | CAIRO_FT_LOCK (font_face->unscaled)((font_face->unscaled)->face_context ? (void)mozilla_LockSharedFTFace ((font_face->unscaled)->face_context, ((void*)0)) : (void )pthread_mutex_lock (&((font_face->unscaled)->mutex ))); |
| 4108 | |
| 4109 | if (font_face->unscaled->from_face && |
| 4110 | font_face->next == NULL((void*)0) && |
| 4111 | font_face->unscaled->faces == font_face && |
| 4112 | CAIRO_REFERENCE_COUNT_GET_VALUE (&font_face->unscaled->base.ref_count)_cairo_atomic_int_get (&(&font_face->unscaled-> base.ref_count)->ref_count) > 1) |
| 4113 | { |
| 4114 | CAIRO_FT_UNLOCK (font_face->unscaled)((font_face->unscaled)->face_context ? mozilla_UnlockSharedFTFace ((font_face->unscaled)->face_context) : (void)pthread_mutex_unlock (&((font_face->unscaled)->mutex))); |
| 4115 | _cairo_unscaled_font_destroy (&font_face->unscaled->base); |
| 4116 | font_face->unscaled = NULL((void*)0); |
| 4117 | |
| 4118 | return FALSE0; |
| 4119 | } |
| 4120 | |
| 4121 | cairo_ft_font_face_t *tmp_face = NULL((void*)0); |
| 4122 | cairo_ft_font_face_t *last_face = NULL((void*)0); |
| 4123 | |
| 4124 | /* Remove face from linked list */ |
| 4125 | for (tmp_face = font_face->unscaled->faces; |
| 4126 | tmp_face; |
| 4127 | tmp_face = tmp_face->next) |
| 4128 | { |
| 4129 | if (tmp_face == font_face) { |
| 4130 | if (last_face) |
| 4131 | last_face->next = tmp_face->next; |
| 4132 | else |
| 4133 | font_face->unscaled->faces = tmp_face->next; |
| 4134 | } |
| 4135 | |
| 4136 | last_face = tmp_face; |
| 4137 | } |
| 4138 | |
| 4139 | CAIRO_FT_UNLOCK (font_face->unscaled)((font_face->unscaled)->face_context ? mozilla_UnlockSharedFTFace ((font_face->unscaled)->face_context) : (void)pthread_mutex_unlock (&((font_face->unscaled)->mutex))); |
| 4140 | _cairo_unscaled_font_destroy (&font_face->unscaled->base); |
| 4141 | font_face->unscaled = NULL((void*)0); |
| 4142 | } |
| 4143 | |
| 4144 | _cairo_ft_options_fini (&font_face->ft_options); |
| 4145 | |
| 4146 | #if CAIRO_HAS_FC_FONT1 |
| 4147 | if (font_face->pattern) { |
| 4148 | FcPatternDestroy (font_face->pattern); |
| 4149 | cairo_font_face_destroy_moz_cairo_font_face_destroy (font_face->resolved_font_face); |
| 4150 | } |
| 4151 | #endif |
| 4152 | |
| 4153 | return TRUE1; |
| 4154 | } |
| 4155 | |
| 4156 | static cairo_font_face_t * |
| 4157 | _cairo_ft_font_face_get_implementation (void *abstract_face, |
| 4158 | const cairo_matrix_t *font_matrix, |
| 4159 | const cairo_matrix_t *ctm, |
| 4160 | const cairo_font_options_t *options) |
| 4161 | { |
| 4162 | /* The handling of font options is different depending on how the |
| 4163 | * font face was created. When the user creates a font face with |
| 4164 | * cairo_ft_font_face_create_for_ft_face(), then the load flags |
| 4165 | * passed in augment the load flags for the options. But for |
| 4166 | * cairo_ft_font_face_create_for_pattern(), the load flags are |
| 4167 | * derived from a pattern where the user has called |
| 4168 | * cairo_ft_font_options_substitute(), so *just* use those load |
| 4169 | * flags and ignore the options. |
| 4170 | */ |
| 4171 | |
| 4172 | #if CAIRO_HAS_FC_FONT1 |
| 4173 | cairo_ft_font_face_t *font_face = abstract_face; |
| 4174 | |
| 4175 | /* If we have an unresolved pattern, resolve it and create |
| 4176 | * unscaled font. Otherwise, use the ones stored in font_face. |
| 4177 | */ |
| 4178 | if (font_face->pattern) { |
| 4179 | cairo_font_face_t *resolved; |
| 4180 | |
| 4181 | /* Cache the resolved font whilst the FcConfig remains consistent. */ |
| 4182 | resolved = font_face->resolved_font_face; |
| 4183 | if (resolved != NULL((void*)0)) { |
| 4184 | if (! FcInitBringUptoDate ()) { |
| 4185 | _cairo_error_throw (CAIRO_STATUS_NO_MEMORY)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_NO_MEMORY ); (void) status__; } while (0); |
| 4186 | return (cairo_font_face_t *) &_cairo_font_face_nil; |
| 4187 | } |
| 4188 | |
| 4189 | if (font_face->resolved_config == FcConfigGetCurrent ()) |
| 4190 | return cairo_font_face_reference_moz_cairo_font_face_reference (resolved); |
| 4191 | |
| 4192 | cairo_font_face_destroy_moz_cairo_font_face_destroy (resolved); |
| 4193 | font_face->resolved_font_face = NULL((void*)0); |
| 4194 | } |
| 4195 | |
| 4196 | resolved = _cairo_ft_resolve_pattern (font_face->pattern, |
| 4197 | font_matrix, |
| 4198 | ctm, |
| 4199 | options); |
| 4200 | if (unlikely (resolved->status)(__builtin_expect (!!(resolved->status), 0))) |
| 4201 | return resolved; |
| 4202 | |
| 4203 | font_face->resolved_font_face = cairo_font_face_reference_moz_cairo_font_face_reference (resolved); |
| 4204 | font_face->resolved_config = FcConfigGetCurrent (); |
| 4205 | |
| 4206 | return resolved; |
| 4207 | } |
| 4208 | #endif |
| 4209 | |
| 4210 | return abstract_face; |
| 4211 | } |
| 4212 | |
| 4213 | static void |
| 4214 | _cairo_ft_font_face_lock (void *abstract_face) |
| 4215 | { |
| 4216 | cairo_ft_font_face_t *font_face = abstract_face; |
| 4217 | if (font_face->unscaled) { |
| 4218 | CAIRO_FT_LOCK (font_face->unscaled)((font_face->unscaled)->face_context ? (void)mozilla_LockSharedFTFace ((font_face->unscaled)->face_context, ((void*)0)) : (void )pthread_mutex_lock (&((font_face->unscaled)->mutex ))); |
| 4219 | } |
| 4220 | } |
| 4221 | |
| 4222 | static void |
| 4223 | _cairo_ft_font_face_unlock (void *abstract_face) |
| 4224 | { |
| 4225 | cairo_ft_font_face_t *font_face = abstract_face; |
| 4226 | if (font_face->unscaled) { |
| 4227 | CAIRO_FT_UNLOCK (font_face->unscaled)((font_face->unscaled)->face_context ? mozilla_UnlockSharedFTFace ((font_face->unscaled)->face_context) : (void)pthread_mutex_unlock (&((font_face->unscaled)->mutex))); |
| 4228 | } |
| 4229 | } |
| 4230 | |
| 4231 | const cairo_font_face_backend_t _cairo_ft_font_face_backend = { |
| 4232 | CAIRO_FONT_TYPE_FT, |
| 4233 | #if CAIRO_HAS_FC_FONT1 |
| 4234 | _cairo_ft_font_face_create_for_toy, |
| 4235 | #else |
| 4236 | NULL((void*)0), |
| 4237 | #endif |
| 4238 | _cairo_ft_font_face_destroy, |
| 4239 | _cairo_ft_font_face_scaled_font_create, |
| 4240 | _cairo_ft_font_face_get_implementation, |
| 4241 | /* |
| 4242 | _cairo_ft_font_face_lock, |
| 4243 | _cairo_ft_font_face_unlock |
| 4244 | */ |
| 4245 | }; |
| 4246 | |
| 4247 | #if CAIRO_HAS_FC_FONT1 |
| 4248 | static cairo_font_face_t * |
| 4249 | _cairo_ft_font_face_create_for_pattern (FcPattern *pattern) |
| 4250 | { |
| 4251 | cairo_ft_font_face_t *font_face; |
| 4252 | |
| 4253 | font_face = _cairo_malloc (sizeof (cairo_ft_font_face_t))((sizeof (cairo_ft_font_face_t)) != 0 ? malloc(sizeof (cairo_ft_font_face_t )) : ((void*)0)); |
| 4254 | if (unlikely (font_face == NULL)(__builtin_expect (!!(font_face == ((void*)0)), 0))) { |
| 4255 | _cairo_error_throw (CAIRO_STATUS_NO_MEMORY)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_NO_MEMORY ); (void) status__; } while (0); |
| 4256 | return (cairo_font_face_t *) &_cairo_font_face_nil; |
| 4257 | } |
| 4258 | |
| 4259 | font_face->unscaled = NULL((void*)0); |
| 4260 | |
| 4261 | _get_pattern_ft_options (pattern, &font_face->ft_options); |
| 4262 | |
| 4263 | font_face->next = NULL((void*)0); |
| 4264 | |
| 4265 | font_face->pattern = FcPatternDuplicate (pattern); |
| 4266 | if (unlikely (font_face->pattern == NULL)(__builtin_expect (!!(font_face->pattern == ((void*)0)), 0 ))) { |
| 4267 | free (font_face); |
| 4268 | _cairo_error_throw (CAIRO_STATUS_NO_MEMORY)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_NO_MEMORY ); (void) status__; } while (0); |
| 4269 | return (cairo_font_face_t *) &_cairo_font_face_nil; |
| 4270 | } |
| 4271 | |
| 4272 | font_face->resolved_font_face = NULL((void*)0); |
| 4273 | font_face->resolved_config = NULL((void*)0); |
| 4274 | |
| 4275 | _cairo_font_face_init (&font_face->base, &_cairo_ft_font_face_backend); |
| 4276 | |
| 4277 | return &font_face->base; |
| 4278 | } |
| 4279 | #endif |
| 4280 | |
| 4281 | static cairo_font_face_t * |
| 4282 | _cairo_ft_font_face_create (cairo_ft_unscaled_font_t *unscaled, |
| 4283 | cairo_ft_options_t *ft_options) |
| 4284 | { |
| 4285 | cairo_ft_font_face_t *font_face, **prev_font_face; |
| 4286 | |
| 4287 | CAIRO_FT_LOCK (unscaled)((unscaled)->face_context ? (void)mozilla_LockSharedFTFace ((unscaled)->face_context, ((void*)0)) : (void)pthread_mutex_lock (&((unscaled)->mutex))); |
| 4288 | |
| 4289 | /* Looked for an existing matching font face */ |
| 4290 | for (font_face = unscaled->faces, prev_font_face = &unscaled->faces; |
| 4291 | font_face; |
| 4292 | prev_font_face = &font_face->next, font_face = font_face->next) |
| 4293 | { |
| 4294 | if (font_face->ft_options.load_flags == ft_options->load_flags && |
| 4295 | font_face->ft_options.synth_flags == ft_options->synth_flags && |
| 4296 | cairo_font_options_equal_moz_cairo_font_options_equal (&font_face->ft_options.base, &ft_options->base)) |
| 4297 | { |
| 4298 | if (font_face->base.status) { |
| 4299 | /* The font_face has been left in an error state, abandon it. */ |
| 4300 | *prev_font_face = font_face->next; |
| 4301 | break; |
| 4302 | } |
| 4303 | |
| 4304 | if (font_face->unscaled == NULL((void*)0)) { |
| 4305 | /* Resurrect this "zombie" font_face (from |
| 4306 | * _cairo_ft_font_face_destroy), switching its unscaled_font |
| 4307 | * from owner to ownee. */ |
| 4308 | font_face->unscaled = unscaled; |
| 4309 | _cairo_unscaled_font_reference (&unscaled->base); |
| 4310 | } else { |
| 4311 | cairo_font_face_reference_moz_cairo_font_face_reference (&font_face->base); |
| 4312 | } |
| 4313 | |
| 4314 | CAIRO_FT_UNLOCK (unscaled)((unscaled)->face_context ? mozilla_UnlockSharedFTFace((unscaled )->face_context) : (void)pthread_mutex_unlock (&((unscaled )->mutex))); |
| 4315 | return &font_face->base; |
| 4316 | } |
| 4317 | } |
| 4318 | |
| 4319 | /* No match found, create a new one */ |
| 4320 | font_face = _cairo_malloc (sizeof (cairo_ft_font_face_t))((sizeof (cairo_ft_font_face_t)) != 0 ? malloc(sizeof (cairo_ft_font_face_t )) : ((void*)0)); |
| 4321 | if (unlikely (!font_face)(__builtin_expect (!!(!font_face), 0))) { |
| 4322 | CAIRO_FT_UNLOCK (unscaled)((unscaled)->face_context ? mozilla_UnlockSharedFTFace((unscaled )->face_context) : (void)pthread_mutex_unlock (&((unscaled )->mutex))); |
| 4323 | _cairo_error_throw (CAIRO_STATUS_NO_MEMORY)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_NO_MEMORY ); (void) status__; } while (0); |
| 4324 | return (cairo_font_face_t *)&_cairo_font_face_nil; |
| 4325 | } |
| 4326 | |
| 4327 | font_face->unscaled = unscaled; |
| 4328 | _cairo_unscaled_font_reference (&unscaled->base); |
| 4329 | |
| 4330 | _cairo_ft_options_init_copy (&font_face->ft_options, ft_options); |
| 4331 | |
| 4332 | if (unscaled->faces && unscaled->faces->unscaled == NULL((void*)0)) { |
| 4333 | /* This "zombie" font_face (from _cairo_ft_font_face_destroy) |
| 4334 | * is no longer needed. */ |
| 4335 | assert (unscaled->from_face && unscaled->faces->next == NULL)((void) sizeof ((unscaled->from_face && unscaled-> faces->next == ((void*)0)) ? 1 : 0), __extension__ ({ if ( unscaled->from_face && unscaled->faces->next == ((void*)0)) ; else __assert_fail ("unscaled->from_face && unscaled->faces->next == NULL" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-ft-font.c", 4335 , __extension__ __PRETTY_FUNCTION__); })); |
| 4336 | cairo_font_face_destroy_moz_cairo_font_face_destroy (&unscaled->faces->base); |
| 4337 | unscaled->faces = NULL((void*)0); |
| 4338 | } |
| 4339 | |
| 4340 | font_face->next = unscaled->faces; |
| 4341 | unscaled->faces = font_face; |
| 4342 | |
| 4343 | #if CAIRO_HAS_FC_FONT1 |
| 4344 | font_face->pattern = NULL((void*)0); |
| 4345 | #endif |
| 4346 | |
| 4347 | _cairo_font_face_init (&font_face->base, &_cairo_ft_font_face_backend); |
| 4348 | |
| 4349 | CAIRO_FT_UNLOCK (unscaled)((unscaled)->face_context ? mozilla_UnlockSharedFTFace((unscaled )->face_context) : (void)pthread_mutex_unlock (&((unscaled )->mutex))); |
| 4350 | return &font_face->base; |
| 4351 | } |
| 4352 | |
| 4353 | /* implement the platform-specific interface */ |
| 4354 | |
| 4355 | #if CAIRO_HAS_FC_FONT1 |
| 4356 | static cairo_status_t |
| 4357 | _cairo_ft_font_options_substitute (const cairo_font_options_t *options, |
| 4358 | FcPattern *pattern) |
| 4359 | { |
| 4360 | FcValue v; |
| 4361 | |
| 4362 | if (options->antialias != CAIRO_ANTIALIAS_DEFAULT) |
| 4363 | { |
| 4364 | if (FcPatternGet (pattern, FC_ANTIALIAS"antialias", 0, &v) == FcResultNoMatch) |
| 4365 | { |
| 4366 | if (! FcPatternAddBool (pattern, |
| 4367 | FC_ANTIALIAS"antialias", |
| 4368 | options->antialias != CAIRO_ANTIALIAS_NONE)) |
| 4369 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 4370 | |
| 4371 | if (options->antialias != CAIRO_ANTIALIAS_SUBPIXEL) { |
| 4372 | FcPatternDel (pattern, FC_RGBA"rgba"); |
| 4373 | if (! FcPatternAddInteger (pattern, FC_RGBA"rgba", FC_RGBA_NONE5)) |
| 4374 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 4375 | } |
| 4376 | } |
| 4377 | } |
| 4378 | |
| 4379 | if (options->antialias != CAIRO_ANTIALIAS_DEFAULT) |
| 4380 | { |
| 4381 | if (FcPatternGet (pattern, FC_RGBA"rgba", 0, &v) == FcResultNoMatch) |
| 4382 | { |
| 4383 | int rgba; |
| 4384 | |
| 4385 | if (options->antialias == CAIRO_ANTIALIAS_SUBPIXEL) { |
| 4386 | switch (options->subpixel_order) { |
| 4387 | case CAIRO_SUBPIXEL_ORDER_DEFAULT: |
| 4388 | case CAIRO_SUBPIXEL_ORDER_RGB: |
| 4389 | default: |
| 4390 | rgba = FC_RGBA_RGB1; |
| 4391 | break; |
| 4392 | case CAIRO_SUBPIXEL_ORDER_BGR: |
| 4393 | rgba = FC_RGBA_BGR2; |
| 4394 | break; |
| 4395 | case CAIRO_SUBPIXEL_ORDER_VRGB: |
| 4396 | rgba = FC_RGBA_VRGB3; |
| 4397 | break; |
| 4398 | case CAIRO_SUBPIXEL_ORDER_VBGR: |
| 4399 | rgba = FC_RGBA_VBGR4; |
| 4400 | break; |
| 4401 | } |
| 4402 | } else { |
| 4403 | rgba = FC_RGBA_NONE5; |
| 4404 | } |
| 4405 | |
| 4406 | if (! FcPatternAddInteger (pattern, FC_RGBA"rgba", rgba)) |
| 4407 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 4408 | } |
| 4409 | } |
| 4410 | |
| 4411 | if (options->lcd_filter != CAIRO_LCD_FILTER_DEFAULT) |
| 4412 | { |
| 4413 | if (FcPatternGet (pattern, FC_LCD_FILTER"lcdfilter", 0, &v) == FcResultNoMatch) |
| 4414 | { |
| 4415 | int lcd_filter; |
| 4416 | |
| 4417 | switch (options->lcd_filter) { |
| 4418 | case CAIRO_LCD_FILTER_NONE: |
| 4419 | lcd_filter = FT_LCD_FILTER_NONE0; |
| 4420 | break; |
| 4421 | case CAIRO_LCD_FILTER_INTRA_PIXEL: |
| 4422 | lcd_filter = FT_LCD_FILTER_LEGACY16; |
| 4423 | break; |
| 4424 | case CAIRO_LCD_FILTER_FIR3: |
| 4425 | lcd_filter = FT_LCD_FILTER_LIGHT2; |
| 4426 | break; |
| 4427 | default: |
| 4428 | case CAIRO_LCD_FILTER_DEFAULT: |
| 4429 | case CAIRO_LCD_FILTER_FIR5: |
| 4430 | lcd_filter = FT_LCD_FILTER_DEFAULT1; |
| 4431 | break; |
| 4432 | } |
| 4433 | |
| 4434 | if (! FcPatternAddInteger (pattern, FC_LCD_FILTER"lcdfilter", lcd_filter)) |
| 4435 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 4436 | } |
| 4437 | } |
| 4438 | |
| 4439 | if (options->hint_style != CAIRO_HINT_STYLE_DEFAULT) |
| 4440 | { |
| 4441 | if (FcPatternGet (pattern, FC_HINTING"hinting", 0, &v) == FcResultNoMatch) |
| 4442 | { |
| 4443 | if (! FcPatternAddBool (pattern, |
| 4444 | FC_HINTING"hinting", |
| 4445 | options->hint_style != CAIRO_HINT_STYLE_NONE)) |
| 4446 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 4447 | } |
| 4448 | |
| 4449 | #ifdef FC_HINT_STYLE"hintstyle" |
| 4450 | if (FcPatternGet (pattern, FC_HINT_STYLE"hintstyle", 0, &v) == FcResultNoMatch) |
| 4451 | { |
| 4452 | int hint_style; |
| 4453 | |
| 4454 | switch (options->hint_style) { |
| 4455 | case CAIRO_HINT_STYLE_NONE: |
| 4456 | hint_style = FC_HINT_NONE0; |
| 4457 | break; |
| 4458 | case CAIRO_HINT_STYLE_SLIGHT: |
| 4459 | hint_style = FC_HINT_SLIGHT1; |
| 4460 | break; |
| 4461 | case CAIRO_HINT_STYLE_MEDIUM: |
| 4462 | hint_style = FC_HINT_MEDIUM2; |
| 4463 | break; |
| 4464 | case CAIRO_HINT_STYLE_FULL: |
| 4465 | case CAIRO_HINT_STYLE_DEFAULT: |
| 4466 | default: |
| 4467 | hint_style = FC_HINT_FULL3; |
| 4468 | break; |
| 4469 | } |
| 4470 | |
| 4471 | if (! FcPatternAddInteger (pattern, FC_HINT_STYLE"hintstyle", hint_style)) |
| 4472 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 4473 | } |
| 4474 | #endif |
| 4475 | } |
| 4476 | |
| 4477 | return CAIRO_STATUS_SUCCESS; |
| 4478 | } |
| 4479 | |
| 4480 | /** |
| 4481 | * cairo_ft_font_options_substitute: |
| 4482 | * @options: a #cairo_font_options_t object |
| 4483 | * @pattern: an existing #FcPattern |
| 4484 | * |
| 4485 | * Add options to a #FcPattern based on a #cairo_font_options_t font |
| 4486 | * options object. Options that are already in the pattern, are not overridden, |
| 4487 | * so you should call this function after calling FcConfigSubstitute() (the |
| 4488 | * user's settings should override options based on the surface type), but |
| 4489 | * before calling FcDefaultSubstitute(). |
| 4490 | * |
| 4491 | * Since: 1.0 |
| 4492 | **/ |
| 4493 | void |
| 4494 | cairo_ft_font_options_substitute_moz_cairo_ft_font_options_substitute (const cairo_font_options_t *options, |
| 4495 | FcPattern *pattern) |
| 4496 | { |
| 4497 | if (cairo_font_options_status_moz_cairo_font_options_status ((cairo_font_options_t *) options)) |
| 4498 | return; |
| 4499 | |
| 4500 | _cairo_ft_font_options_substitute (options, pattern); |
| 4501 | } |
| 4502 | |
| 4503 | static cairo_font_face_t * |
| 4504 | _cairo_ft_resolve_pattern (FcPattern *pattern, |
| 4505 | const cairo_matrix_t *font_matrix, |
| 4506 | const cairo_matrix_t *ctm, |
| 4507 | const cairo_font_options_t *font_options) |
| 4508 | { |
| 4509 | cairo_status_t status; |
| 4510 | |
| 4511 | cairo_matrix_t scale; |
| 4512 | FcPattern *resolved; |
| 4513 | cairo_ft_font_transform_t sf; |
| 4514 | FcResult result; |
| 4515 | cairo_ft_unscaled_font_t *unscaled; |
| 4516 | cairo_ft_options_t ft_options; |
| 4517 | cairo_font_face_t *font_face; |
| 4518 | |
| 4519 | scale = *ctm; |
| 4520 | scale.x0 = scale.y0 = 0; |
| 4521 | cairo_matrix_multiply_moz_cairo_matrix_multiply (&scale, |
| 4522 | font_matrix, |
| 4523 | &scale); |
| 4524 | |
| 4525 | status = _compute_transform (&sf, &scale, NULL((void*)0)); |
| 4526 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 4527 | return (cairo_font_face_t *)&_cairo_font_face_nil; |
| 4528 | |
| 4529 | pattern = FcPatternDuplicate (pattern); |
| 4530 | if (pattern == NULL((void*)0)) |
| 4531 | return (cairo_font_face_t *)&_cairo_font_face_nil; |
| 4532 | |
| 4533 | if (! FcPatternAddDouble (pattern, FC_PIXEL_SIZE"pixelsize", sf.y_scale)) { |
| 4534 | font_face = (cairo_font_face_t *)&_cairo_font_face_nil; |
| 4535 | goto FREE_PATTERN; |
| 4536 | } |
| 4537 | |
| 4538 | if (! FcConfigSubstitute (NULL((void*)0), pattern, FcMatchPattern)) { |
| 4539 | font_face = (cairo_font_face_t *)&_cairo_font_face_nil; |
| 4540 | goto FREE_PATTERN; |
| 4541 | } |
| 4542 | |
| 4543 | status = _cairo_ft_font_options_substitute (font_options, pattern); |
| 4544 | if (status) { |
| 4545 | font_face = (cairo_font_face_t *)&_cairo_font_face_nil; |
| 4546 | goto FREE_PATTERN; |
| 4547 | } |
| 4548 | |
| 4549 | FcDefaultSubstitute (pattern); |
| 4550 | |
| 4551 | status = _cairo_ft_unscaled_font_create_for_pattern (pattern, &unscaled); |
| 4552 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 4553 | font_face = (cairo_font_face_t *)&_cairo_font_face_nil; |
| 4554 | goto FREE_PATTERN; |
| 4555 | } |
| 4556 | |
| 4557 | if (unscaled == NULL((void*)0)) { |
| 4558 | resolved = FcFontMatch (NULL((void*)0), pattern, &result); |
| 4559 | if (!resolved) { |
| 4560 | /* We failed to find any font. Substitute twin so that the user can |
| 4561 | * see something (and hopefully recognise that the font is missing) |
| 4562 | * and not just receive a NO_MEMORY error during rendering. |
| 4563 | */ |
| 4564 | font_face = _cairo_font_face_twin_create_fallback (); |
| 4565 | goto FREE_PATTERN; |
| 4566 | } |
| 4567 | |
| 4568 | status = _cairo_ft_unscaled_font_create_for_pattern (resolved, &unscaled); |
| 4569 | if (unlikely (status || unscaled == NULL)(__builtin_expect (!!(status || unscaled == ((void*)0)), 0))) { |
| 4570 | font_face = (cairo_font_face_t *)&_cairo_font_face_nil; |
| 4571 | goto FREE_RESOLVED; |
| 4572 | } |
| 4573 | } else |
| 4574 | resolved = pattern; |
| 4575 | |
| 4576 | _get_pattern_ft_options (resolved, &ft_options); |
| 4577 | font_face = _cairo_ft_font_face_create (unscaled, &ft_options); |
| 4578 | _cairo_ft_options_fini (&ft_options); |
| 4579 | _cairo_unscaled_font_destroy (&unscaled->base); |
| 4580 | |
| 4581 | FREE_RESOLVED: |
| 4582 | if (resolved != pattern) |
| 4583 | FcPatternDestroy (resolved); |
| 4584 | |
| 4585 | FREE_PATTERN: |
| 4586 | FcPatternDestroy (pattern); |
| 4587 | |
| 4588 | return font_face; |
| 4589 | } |
| 4590 | |
| 4591 | /** |
| 4592 | * cairo_ft_font_face_create_for_pattern: |
| 4593 | * @pattern: A fontconfig pattern. Cairo makes a copy of the pattern |
| 4594 | * if it needs to. You are free to modify or free @pattern after this call. |
| 4595 | * |
| 4596 | * Creates a new font face for the FreeType font backend based on a |
| 4597 | * fontconfig pattern. This font can then be used with |
| 4598 | * cairo_set_font_face() or cairo_scaled_font_create(). The |
| 4599 | * #cairo_scaled_font_t returned from cairo_scaled_font_create() is |
| 4600 | * also for the FreeType backend and can be used with functions such |
| 4601 | * as cairo_ft_scaled_font_lock_face(). |
| 4602 | * |
| 4603 | * Font rendering options are represented both here and when you |
| 4604 | * call cairo_scaled_font_create(). Font options that have a representation |
| 4605 | * in a #FcPattern must be passed in here; to modify #FcPattern |
| 4606 | * appropriately to reflect the options in a #cairo_font_options_t, call |
| 4607 | * cairo_ft_font_options_substitute(). |
| 4608 | * |
| 4609 | * The pattern's FC_FT_FACE element is inspected first and if that is set, |
| 4610 | * that will be the FreeType font face associated with the returned cairo |
| 4611 | * font face. Otherwise the FC_FILE element is checked. If it's set, |
| 4612 | * that and the value of the FC_INDEX element (defaults to zero) of @pattern |
| 4613 | * are used to load a font face from file. |
| 4614 | * |
| 4615 | * If both steps from the previous paragraph fails, @pattern will be passed |
| 4616 | * to FcConfigSubstitute, FcDefaultSubstitute, and finally FcFontMatch, |
| 4617 | * and the resulting font pattern is used. |
| 4618 | * |
| 4619 | * If the FC_FT_FACE element of @pattern is set, the user is responsible |
| 4620 | * for making sure that the referenced FT_Face remains valid for the life |
| 4621 | * time of the returned #cairo_font_face_t. See |
| 4622 | * cairo_ft_font_face_create_for_ft_face() for an example of how to couple |
| 4623 | * the life time of the FT_Face to that of the cairo font-face. |
| 4624 | * |
| 4625 | * Return value: a newly created #cairo_font_face_t. Free with |
| 4626 | * cairo_font_face_destroy() when you are done using it. |
| 4627 | * |
| 4628 | * Since: 1.0 |
| 4629 | **/ |
| 4630 | cairo_font_face_t * |
| 4631 | cairo_ft_font_face_create_for_pattern_moz_cairo_ft_font_face_create_for_pattern (FcPattern *pattern) |
| 4632 | { |
| 4633 | cairo_ft_unscaled_font_t *unscaled; |
| 4634 | cairo_font_face_t *font_face; |
| 4635 | cairo_ft_options_t ft_options; |
| 4636 | cairo_status_t status; |
| 4637 | |
| 4638 | status = _cairo_ft_unscaled_font_create_for_pattern (pattern, &unscaled); |
| 4639 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 4640 | if (status == CAIRO_STATUS_FILE_NOT_FOUND) |
| 4641 | return (cairo_font_face_t *) &_cairo_font_face_nil_file_not_found; |
| 4642 | else |
| 4643 | return (cairo_font_face_t *) &_cairo_font_face_nil; |
| 4644 | } |
| 4645 | if (unlikely (unscaled == NULL)(__builtin_expect (!!(unscaled == ((void*)0)), 0))) { |
| 4646 | /* Store the pattern. We will resolve it and create unscaled |
| 4647 | * font when creating scaled fonts */ |
| 4648 | return _cairo_ft_font_face_create_for_pattern (pattern); |
| 4649 | } |
| 4650 | |
| 4651 | _get_pattern_ft_options (pattern, &ft_options); |
| 4652 | font_face = _cairo_ft_font_face_create (unscaled, &ft_options); |
| 4653 | _cairo_ft_options_fini (&ft_options); |
| 4654 | _cairo_unscaled_font_destroy (&unscaled->base); |
| 4655 | |
| 4656 | return font_face; |
| 4657 | } |
| 4658 | #endif |
| 4659 | |
| 4660 | /** |
| 4661 | * cairo_ft_font_face_create_for_ft_face: |
| 4662 | * @face: A FreeType face object, already opened. This must |
| 4663 | * be kept around until the face's ref_count drops to |
| 4664 | * zero and it is freed. Since the face may be referenced |
| 4665 | * internally to Cairo, the best way to determine when it |
| 4666 | * is safe to free the face is to pass a |
| 4667 | * #cairo_destroy_func_t to cairo_font_face_set_user_data() |
| 4668 | * @load_flags: flags to pass to FT_Load_Glyph when loading |
| 4669 | * glyphs from the font. These flags are OR'ed together with |
| 4670 | * the flags derived from the #cairo_font_options_t passed |
| 4671 | * to cairo_scaled_font_create(), so only a few values such |
| 4672 | * as %FT_LOAD_VERTICAL_LAYOUT, and %FT_LOAD_FORCE_AUTOHINT |
| 4673 | * are useful. You should not pass any of the flags affecting |
| 4674 | * the load target, such as %FT_LOAD_TARGET_LIGHT. |
| 4675 | * |
| 4676 | * Creates a new font face for the FreeType font backend from a |
| 4677 | * pre-opened FreeType face. This font can then be used with |
| 4678 | * cairo_set_font_face() or cairo_scaled_font_create(). The |
| 4679 | * #cairo_scaled_font_t returned from cairo_scaled_font_create() is |
| 4680 | * also for the FreeType backend and can be used with functions such |
| 4681 | * as cairo_ft_scaled_font_lock_face(). Note that Cairo may keep a reference |
| 4682 | * to the FT_Face alive in a font-cache and the exact lifetime of the reference |
| 4683 | * depends highly upon the exact usage pattern and is subject to external |
| 4684 | * factors. You must not call FT_Done_Face() before the last reference to the |
| 4685 | * #cairo_font_face_t has been dropped. |
| 4686 | * |
| 4687 | * As an example, below is how one might correctly couple the lifetime of |
| 4688 | * the FreeType face object to the #cairo_font_face_t. |
| 4689 | * |
| 4690 | * <informalexample><programlisting> |
| 4691 | * static const cairo_user_data_key_t key; |
| 4692 | * |
| 4693 | * font_face = cairo_ft_font_face_create_for_ft_face (ft_face, 0); |
| 4694 | * status = cairo_font_face_set_user_data (font_face, &key, |
| 4695 | * ft_face, (cairo_destroy_func_t) FT_Done_Face); |
| 4696 | * if (status) { |
| 4697 | * cairo_font_face_destroy (font_face); |
| 4698 | * FT_Done_Face (ft_face); |
| 4699 | * return ERROR; |
| 4700 | * } |
| 4701 | * </programlisting></informalexample> |
| 4702 | * |
| 4703 | * Return value: a newly created #cairo_font_face_t. Free with |
| 4704 | * cairo_font_face_destroy() when you are done using it. |
| 4705 | * |
| 4706 | * Since: 1.0 |
| 4707 | **/ |
| 4708 | cairo_font_face_t * |
| 4709 | cairo_ft_font_face_create_for_ft_face_moz_cairo_ft_font_face_create_for_ft_face (FT_Face face, |
| 4710 | int load_flags, |
| 4711 | unsigned int synth_flags, |
| 4712 | void *face_context) |
| 4713 | { |
| 4714 | cairo_ft_unscaled_font_t *unscaled; |
| 4715 | cairo_font_face_t *font_face; |
| 4716 | cairo_ft_options_t ft_options; |
| 4717 | cairo_status_t status; |
| 4718 | |
| 4719 | status = _cairo_ft_unscaled_font_create_from_face (face, face_context, |
| 4720 | &unscaled); |
| 4721 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 4722 | return (cairo_font_face_t *)&_cairo_font_face_nil; |
| 4723 | |
| 4724 | ft_options.load_flags = load_flags; |
| 4725 | ft_options.synth_flags = synth_flags; |
| 4726 | _cairo_font_options_init_default (&ft_options.base); |
| 4727 | |
| 4728 | font_face = _cairo_ft_font_face_create (unscaled, &ft_options); |
| 4729 | _cairo_unscaled_font_destroy (&unscaled->base); |
| 4730 | |
| 4731 | return font_face; |
| 4732 | } |
| 4733 | |
| 4734 | /** |
| 4735 | * cairo_ft_font_face_set_synthesize: |
| 4736 | * @font_face: The #cairo_ft_font_face_t object to modify |
| 4737 | * @synth_flags: the set of synthesis options to enable |
| 4738 | * |
| 4739 | * FreeType provides the ability to synthesize different glyphs from a base |
| 4740 | * font, which is useful if you lack those glyphs from a true bold or oblique |
| 4741 | * font. See also #cairo_ft_synthesize_t. |
| 4742 | * |
| 4743 | * Since: 1.12 |
| 4744 | **/ |
| 4745 | void |
| 4746 | cairo_ft_font_face_set_synthesize_moz_cairo_ft_font_face_set_synthesize (cairo_font_face_t *font_face, |
| 4747 | unsigned int synth_flags) |
| 4748 | { |
| 4749 | cairo_ft_font_face_t *ft; |
| 4750 | |
| 4751 | if (font_face->backend->type != CAIRO_FONT_TYPE_FT) |
| 4752 | return; |
| 4753 | |
| 4754 | ft = (cairo_ft_font_face_t *) font_face; |
| 4755 | ft->ft_options.synth_flags |= synth_flags; |
| 4756 | } |
| 4757 | |
| 4758 | /** |
| 4759 | * cairo_ft_font_face_unset_synthesize: |
| 4760 | * @font_face: The #cairo_ft_font_face_t object to modify |
| 4761 | * @synth_flags: the set of synthesis options to disable |
| 4762 | * |
| 4763 | * See cairo_ft_font_face_set_synthesize(). |
| 4764 | * |
| 4765 | * Since: 1.12 |
| 4766 | **/ |
| 4767 | void |
| 4768 | cairo_ft_font_face_unset_synthesize (cairo_font_face_t *font_face, |
| 4769 | unsigned int synth_flags) |
| 4770 | { |
| 4771 | cairo_ft_font_face_t *ft; |
| 4772 | |
| 4773 | if (font_face->backend->type != CAIRO_FONT_TYPE_FT) |
| 4774 | return; |
| 4775 | |
| 4776 | ft = (cairo_ft_font_face_t *) font_face; |
| 4777 | ft->ft_options.synth_flags &= ~synth_flags; |
| 4778 | } |
| 4779 | |
| 4780 | /** |
| 4781 | * cairo_ft_font_face_get_synthesize: |
| 4782 | * @font_face: The #cairo_ft_font_face_t object to query |
| 4783 | * |
| 4784 | * See #cairo_ft_synthesize_t. |
| 4785 | * |
| 4786 | * Returns: the current set of synthesis options. |
| 4787 | * |
| 4788 | * Since: 1.12 |
| 4789 | **/ |
| 4790 | unsigned int |
| 4791 | cairo_ft_font_face_get_synthesize (cairo_font_face_t *font_face) |
| 4792 | { |
| 4793 | cairo_ft_font_face_t *ft; |
| 4794 | |
| 4795 | if (font_face->backend->type != CAIRO_FONT_TYPE_FT) |
| 4796 | return 0; |
| 4797 | |
| 4798 | ft = (cairo_ft_font_face_t *) font_face; |
| 4799 | return ft->ft_options.synth_flags; |
| 4800 | } |
| 4801 | |
| 4802 | /** |
| 4803 | * cairo_ft_scaled_font_lock_face: |
| 4804 | * @scaled_font: A #cairo_scaled_font_t from the FreeType font backend. Such an |
| 4805 | * object can be created by calling cairo_scaled_font_create() on a |
| 4806 | * FreeType backend font face (see cairo_ft_font_face_create_for_pattern(), |
| 4807 | * cairo_ft_font_face_create_for_ft_face()). |
| 4808 | * |
| 4809 | * cairo_ft_scaled_font_lock_face() gets the #FT_Face object from a FreeType |
| 4810 | * backend font and scales it appropriately for the font and applies OpenType |
| 4811 | * font variations if applicable. You must |
| 4812 | * release the face with cairo_ft_scaled_font_unlock_face() |
| 4813 | * when you are done using it. Since the #FT_Face object can be |
| 4814 | * shared between multiple #cairo_scaled_font_t objects, you must not |
| 4815 | * lock any other font objects until you unlock this one. A count is |
| 4816 | * kept of the number of times cairo_ft_scaled_font_lock_face() is |
| 4817 | * called. cairo_ft_scaled_font_unlock_face() must be called the same number |
| 4818 | * of times. |
| 4819 | * |
| 4820 | * You must be careful when using this function in a library or in a |
| 4821 | * threaded application, because freetype's design makes it unsafe to |
| 4822 | * call freetype functions simultaneously from multiple threads, (even |
| 4823 | * if using distinct FT_Face objects). Because of this, application |
| 4824 | * code that acquires an FT_Face object with this call must add its |
| 4825 | * own locking to protect any use of that object, (and which also must |
| 4826 | * protect any other calls into cairo as almost any cairo function |
| 4827 | * might result in a call into the freetype library). |
| 4828 | * |
| 4829 | * Return value: The #FT_Face object for @font, scaled appropriately, |
| 4830 | * or %NULL if @scaled_font is in an error state (see |
| 4831 | * cairo_scaled_font_status()) or there is insufficient memory. |
| 4832 | * |
| 4833 | * Since: 1.0 |
| 4834 | **/ |
| 4835 | FT_Face |
| 4836 | cairo_ft_scaled_font_lock_face_moz_cairo_ft_scaled_font_lock_face (cairo_scaled_font_t *abstract_font) |
| 4837 | { |
| 4838 | cairo_ft_scaled_font_t *scaled_font = (cairo_ft_scaled_font_t *) abstract_font; |
| 4839 | FT_Face face; |
| 4840 | cairo_status_t status; |
| 4841 | |
| 4842 | if (! _cairo_scaled_font_is_ft (abstract_font)) { |
| 4843 | _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_FONT_TYPE_MISMATCH ); (void) status__; } while (0); |
| 4844 | return NULL((void*)0); |
| 4845 | } |
| 4846 | |
| 4847 | if (scaled_font->base.status) |
| 4848 | return NULL((void*)0); |
| 4849 | |
| 4850 | face = _cairo_ft_unscaled_font_lock_face (scaled_font->unscaled); |
| 4851 | if (unlikely (face == NULL)(__builtin_expect (!!(face == ((void*)0)), 0))) { |
| 4852 | status = _cairo_scaled_font_set_error (&scaled_font->base, CAIRO_STATUS_NO_MEMORY); |
| 4853 | return NULL((void*)0); |
| 4854 | } |
| 4855 | |
| 4856 | status = _cairo_ft_unscaled_font_set_scale (scaled_font->unscaled, |
| 4857 | &scaled_font->base.scale); |
| 4858 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 4859 | _cairo_ft_unscaled_font_unlock_face (scaled_font->unscaled); |
| 4860 | status = _cairo_scaled_font_set_error (&scaled_font->base, status); |
| 4861 | return NULL((void*)0); |
| 4862 | } |
| 4863 | |
| 4864 | cairo_ft_apply_variations (face, scaled_font); |
| 4865 | |
| 4866 | /* Note: We deliberately release the unscaled font's mutex here, |
| 4867 | * so that we are not holding a lock across two separate calls to |
| 4868 | * cairo function, (which would give the application some |
| 4869 | * opportunity for creating deadlock. This is obviously unsafe, |
| 4870 | * but as documented, the user must add manual locking when using |
| 4871 | * this function. */ |
| 4872 | CAIRO_FT_UNLOCK (scaled_font->unscaled)((scaled_font->unscaled)->face_context ? mozilla_UnlockSharedFTFace ((scaled_font->unscaled)->face_context) : (void)pthread_mutex_unlock (&((scaled_font->unscaled)->mutex))); |
| 4873 | |
| 4874 | return face; |
| 4875 | } |
| 4876 | |
| 4877 | /** |
| 4878 | * cairo_ft_scaled_font_unlock_face: |
| 4879 | * @scaled_font: A #cairo_scaled_font_t from the FreeType font backend. Such an |
| 4880 | * object can be created by calling cairo_scaled_font_create() on a |
| 4881 | * FreeType backend font face (see cairo_ft_font_face_create_for_pattern(), |
| 4882 | * cairo_ft_font_face_create_for_ft_face()). |
| 4883 | * |
| 4884 | * Releases a face obtained with cairo_ft_scaled_font_lock_face(). |
| 4885 | * |
| 4886 | * Since: 1.0 |
| 4887 | **/ |
| 4888 | void |
| 4889 | cairo_ft_scaled_font_unlock_face_moz_cairo_ft_scaled_font_unlock_face (cairo_scaled_font_t *abstract_font) |
| 4890 | { |
| 4891 | cairo_ft_scaled_font_t *scaled_font = (cairo_ft_scaled_font_t *) abstract_font; |
| 4892 | |
| 4893 | if (! _cairo_scaled_font_is_ft (abstract_font)) { |
| 4894 | _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_FONT_TYPE_MISMATCH ); (void) status__; } while (0); |
| 4895 | return; |
| 4896 | } |
| 4897 | |
| 4898 | if (scaled_font->base.status) |
| 4899 | return; |
| 4900 | |
| 4901 | /* Note: We released the unscaled font's mutex at the end of |
| 4902 | * cairo_ft_scaled_font_lock_face, so we have to acquire it again |
| 4903 | * as _cairo_ft_unscaled_font_unlock_face expects it to be held |
| 4904 | * when we call into it. */ |
| 4905 | CAIRO_FT_LOCK (scaled_font->unscaled)((scaled_font->unscaled)->face_context ? (void)mozilla_LockSharedFTFace ((scaled_font->unscaled)->face_context, ((void*)0)) : ( void)pthread_mutex_lock (&((scaled_font->unscaled)-> mutex))); |
| 4906 | |
| 4907 | _cairo_ft_unscaled_font_unlock_face (scaled_font->unscaled); |
| 4908 | } |
| 4909 | |
| 4910 | static cairo_bool_t |
| 4911 | _cairo_ft_scaled_font_is_vertical (cairo_scaled_font_t *scaled_font) |
| 4912 | { |
| 4913 | cairo_ft_scaled_font_t *ft_scaled_font; |
| 4914 | |
| 4915 | if (!_cairo_scaled_font_is_ft (scaled_font)) |
| 4916 | return FALSE0; |
| 4917 | |
| 4918 | ft_scaled_font = (cairo_ft_scaled_font_t *) scaled_font; |
| 4919 | if (ft_scaled_font->ft_options.load_flags & FT_LOAD_VERTICAL_LAYOUT( 1L << 4 )) |
| 4920 | return TRUE1; |
| 4921 | return FALSE0; |
| 4922 | } |
| 4923 | |
| 4924 | unsigned int |
| 4925 | _cairo_ft_scaled_font_get_load_flags (cairo_scaled_font_t *scaled_font) |
| 4926 | { |
| 4927 | cairo_ft_scaled_font_t *ft_scaled_font; |
| 4928 | |
| 4929 | if (! _cairo_scaled_font_is_ft (scaled_font)) |
| 4930 | return 0; |
| 4931 | |
| 4932 | ft_scaled_font = (cairo_ft_scaled_font_t *) scaled_font; |
| 4933 | return ft_scaled_font->ft_options.load_flags; |
| 4934 | } |
| 4935 | |
| 4936 | void |
| 4937 | _cairo_ft_font_reset_static_data (void) |
| 4938 | { |
| 4939 | _cairo_ft_unscaled_font_map_destroy (); |
| 4940 | } |