diff options
Diffstat (limited to '')
| -rw-r--r-- | gfx/harfbuzz/src/hb-face.h | 181 | ||||
| -rw-r--r-- | gfx/harfbuzz/src/hb-face.hh | 111 |
2 files changed, 292 insertions, 0 deletions
diff --git a/gfx/harfbuzz/src/hb-face.h b/gfx/harfbuzz/src/hb-face.h new file mode 100644 index 0000000000..38e7104af6 --- /dev/null +++ b/gfx/harfbuzz/src/hb-face.h @@ -0,0 +1,181 @@ +/* + * Copyright © 2009 Red Hat, Inc. + * + * This is part of HarfBuzz, a text shaping library. + * + * Permission is hereby granted, without written agreement and without + * license or royalty fees, to use, copy, modify, and distribute this + * software and its documentation for any purpose, provided that the + * above copyright notice and the following two paragraphs appear in + * all copies of this software. + * + * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR + * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES + * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN + * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * + * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, + * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS + * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO + * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + * + * Red Hat Author(s): Behdad Esfahbod + */ + +#if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR) +#error "Include <hb.h> instead." +#endif + +#ifndef HB_FACE_H +#define HB_FACE_H + +#include "hb-common.h" +#include "hb-blob.h" +#include "hb-set.h" + +HB_BEGIN_DECLS + + +HB_EXTERN unsigned int +hb_face_count (hb_blob_t *blob); + + +/* + * hb_face_t + */ + +/** + * hb_face_t: + * + * Data type for holding font faces. + * + **/ +typedef struct hb_face_t hb_face_t; + +HB_EXTERN hb_face_t * +hb_face_create (hb_blob_t *blob, + unsigned int index); + +/** + * hb_reference_table_func_t: + * @face: an #hb_face_t to reference table for + * @tag: the tag of the table to reference + * @user_data: User data pointer passed by the caller + * + * Callback function for hb_face_create_for_tables(). + * + * Return value: (transfer full): A pointer to the @tag table within @face + * + * Since: 0.9.2 + */ + +typedef hb_blob_t * (*hb_reference_table_func_t) (hb_face_t *face, hb_tag_t tag, void *user_data); + +/* calls destroy() when not needing user_data anymore */ +HB_EXTERN hb_face_t * +hb_face_create_for_tables (hb_reference_table_func_t reference_table_func, + void *user_data, + hb_destroy_func_t destroy); + +HB_EXTERN hb_face_t * +hb_face_get_empty (void); + +HB_EXTERN hb_face_t * +hb_face_reference (hb_face_t *face); + +HB_EXTERN void +hb_face_destroy (hb_face_t *face); + +HB_EXTERN hb_bool_t +hb_face_set_user_data (hb_face_t *face, + hb_user_data_key_t *key, + void * data, + hb_destroy_func_t destroy, + hb_bool_t replace); + +HB_EXTERN void * +hb_face_get_user_data (const hb_face_t *face, + hb_user_data_key_t *key); + +HB_EXTERN void +hb_face_make_immutable (hb_face_t *face); + +HB_EXTERN hb_bool_t +hb_face_is_immutable (const hb_face_t *face); + + +HB_EXTERN hb_blob_t * +hb_face_reference_table (const hb_face_t *face, + hb_tag_t tag); + +HB_EXTERN hb_blob_t * +hb_face_reference_blob (hb_face_t *face); + +HB_EXTERN void +hb_face_set_index (hb_face_t *face, + unsigned int index); + +HB_EXTERN unsigned int +hb_face_get_index (const hb_face_t *face); + +HB_EXTERN void +hb_face_set_upem (hb_face_t *face, + unsigned int upem); + +HB_EXTERN unsigned int +hb_face_get_upem (const hb_face_t *face); + +HB_EXTERN void +hb_face_set_glyph_count (hb_face_t *face, + unsigned int glyph_count); + +HB_EXTERN unsigned int +hb_face_get_glyph_count (const hb_face_t *face); + +HB_EXTERN unsigned int +hb_face_get_table_tags (const hb_face_t *face, + unsigned int start_offset, + unsigned int *table_count, /* IN/OUT */ + hb_tag_t *table_tags /* OUT */); + + +/* + * Character set. + */ + +HB_EXTERN void +hb_face_collect_unicodes (hb_face_t *face, + hb_set_t *out); + +HB_EXTERN void +hb_face_collect_variation_selectors (hb_face_t *face, + hb_set_t *out); + +HB_EXTERN void +hb_face_collect_variation_unicodes (hb_face_t *face, + hb_codepoint_t variation_selector, + hb_set_t *out); + + +/* + * Builder face. + */ + +HB_EXTERN hb_face_t * +hb_face_builder_create (void); + +HB_EXTERN hb_bool_t +hb_face_builder_add_table (hb_face_t *face, + hb_tag_t tag, + hb_blob_t *blob); + +HB_EXTERN void +hb_face_builder_sort_tables (hb_face_t *face, + const hb_tag_t *tags); + + +HB_END_DECLS + +#endif /* HB_FACE_H */ diff --git a/gfx/harfbuzz/src/hb-face.hh b/gfx/harfbuzz/src/hb-face.hh new file mode 100644 index 0000000000..1bf0606e52 --- /dev/null +++ b/gfx/harfbuzz/src/hb-face.hh @@ -0,0 +1,111 @@ +/* + * Copyright © 2009 Red Hat, Inc. + * Copyright © 2011 Google, Inc. + * + * This is part of HarfBuzz, a text shaping library. + * + * Permission is hereby granted, without written agreement and without + * license or royalty fees, to use, copy, modify, and distribute this + * software and its documentation for any purpose, provided that the + * above copyright notice and the following two paragraphs appear in + * all copies of this software. + * + * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR + * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES + * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN + * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * + * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, + * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS + * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO + * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + * + * Red Hat Author(s): Behdad Esfahbod + * Google Author(s): Behdad Esfahbod + */ + +#ifndef HB_FACE_HH +#define HB_FACE_HH + +#include "hb.hh" + +#include "hb-shaper.hh" +#include "hb-shape-plan.hh" +#include "hb-ot-face.hh" + + +/* + * hb_face_t + */ + +#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_INSTANTIATE_SHAPERS(shaper, face); +#include "hb-shaper-list.hh" +#undef HB_SHAPER_IMPLEMENT + +struct hb_face_t +{ + hb_object_header_t header; + + hb_reference_table_func_t reference_table_func; + void *user_data; + hb_destroy_func_t destroy; + + unsigned int index; /* Face index in a collection, zero-based. */ + mutable hb_atomic_int_t upem; /* Units-per-EM. */ + mutable hb_atomic_int_t num_glyphs; /* Number of glyphs. */ + + hb_shaper_object_dataset_t<hb_face_t> data;/* Various shaper data. */ + hb_ot_face_t table; /* All the face's tables. */ + + /* Cache */ + struct plan_node_t + { + hb_shape_plan_t *shape_plan; + plan_node_t *next; + }; +#ifndef HB_NO_SHAPER + hb_atomic_ptr_t<plan_node_t> shape_plans; +#endif + + hb_blob_t *reference_table (hb_tag_t tag) const + { + hb_blob_t *blob; + + if (unlikely (!reference_table_func)) + return hb_blob_get_empty (); + + blob = reference_table_func (/*XXX*/const_cast<hb_face_t *> (this), tag, user_data); + if (unlikely (!blob)) + return hb_blob_get_empty (); + + return blob; + } + + unsigned int get_upem () const + { + unsigned int ret = upem; + if (unlikely (!ret)) + { + return load_upem (); + } + return ret; + } + + unsigned int get_num_glyphs () const + { + unsigned int ret = num_glyphs; + if (unlikely (ret == UINT_MAX)) + return load_num_glyphs (); + return ret; + } + + private: + HB_INTERNAL unsigned int load_upem () const; + HB_INTERNAL unsigned int load_num_glyphs () const; +}; +DECLARE_NULL_INSTANCE (hb_face_t); + + +#endif /* HB_FACE_HH */ |