diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-1.0.4/src/hb-shape-plan.cc')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-1.0.4/src/hb-shape-plan.cc | 495 |
1 files changed, 0 insertions, 495 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-1.0.4/src/hb-shape-plan.cc b/Build/source/libs/harfbuzz/harfbuzz-1.0.4/src/hb-shape-plan.cc deleted file mode 100644 index d2f293d69de..00000000000 --- a/Build/source/libs/harfbuzz/harfbuzz-1.0.4/src/hb-shape-plan.cc +++ /dev/null @@ -1,495 +0,0 @@ -/* - * Copyright © 2012 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. - * - * Google Author(s): Behdad Esfahbod - */ - -#include "hb-shape-plan-private.hh" -#include "hb-shaper-private.hh" -#include "hb-font-private.hh" -#include "hb-buffer-private.hh" - - -#ifndef HB_DEBUG_SHAPE_PLAN -#define HB_DEBUG_SHAPE_PLAN (HB_DEBUG+0) -#endif - - -#define HB_SHAPER_IMPLEMENT(shaper) \ - HB_SHAPER_DATA_ENSURE_DECLARE(shaper, face) \ - HB_SHAPER_DATA_ENSURE_DECLARE(shaper, font) -#include "hb-shaper-list.hh" -#undef HB_SHAPER_IMPLEMENT - - -static void -hb_shape_plan_plan (hb_shape_plan_t *shape_plan, - const hb_feature_t *user_features, - unsigned int num_user_features, - const char * const *shaper_list) -{ - DEBUG_MSG_FUNC (SHAPE_PLAN, shape_plan, - "num_features=%d shaper_list=%p", - num_user_features, - shaper_list); - - const hb_shaper_pair_t *shapers = _hb_shapers_get (); - -#define HB_SHAPER_PLAN(shaper) \ - HB_STMT_START { \ - if (hb_##shaper##_shaper_face_data_ensure (shape_plan->face_unsafe)) { \ - HB_SHAPER_DATA (shaper, shape_plan) = \ - HB_SHAPER_DATA_CREATE_FUNC (shaper, shape_plan) (shape_plan, user_features, num_user_features); \ - shape_plan->shaper_func = _hb_##shaper##_shape; \ - shape_plan->shaper_name = #shaper; \ - return; \ - } \ - } HB_STMT_END - - if (likely (!shaper_list)) { - for (unsigned int i = 0; i < HB_SHAPERS_COUNT; i++) - if (0) - ; -#define HB_SHAPER_IMPLEMENT(shaper) \ - else if (shapers[i].func == _hb_##shaper##_shape) \ - HB_SHAPER_PLAN (shaper); -#include "hb-shaper-list.hh" -#undef HB_SHAPER_IMPLEMENT - } else { - for (; *shaper_list; shaper_list++) - if (0) - ; -#define HB_SHAPER_IMPLEMENT(shaper) \ - else if (0 == strcmp (*shaper_list, #shaper)) \ - HB_SHAPER_PLAN (shaper); -#include "hb-shaper-list.hh" -#undef HB_SHAPER_IMPLEMENT - } - -#undef HB_SHAPER_PLAN -} - - -/* - * hb_shape_plan_t - */ - -/** - * hb_shape_plan_create: (Xconstructor) - * @face: - * @props: - * @user_features: (array length=num_user_features): - * @num_user_features: - * @shaper_list: (array zero-terminated=1): - * - * - * - * Return value: (transfer full): - * - * Since: 0.9.7 - **/ -hb_shape_plan_t * -hb_shape_plan_create (hb_face_t *face, - const hb_segment_properties_t *props, - const hb_feature_t *user_features, - unsigned int num_user_features, - const char * const *shaper_list) -{ - DEBUG_MSG_FUNC (SHAPE_PLAN, NULL, - "face=%p num_features=%d shaper_list=%p", - face, - num_user_features, - shaper_list); - - hb_shape_plan_t *shape_plan; - hb_feature_t *features = NULL; - - if (unlikely (!face)) - face = hb_face_get_empty (); - if (unlikely (!props)) - return hb_shape_plan_get_empty (); - if (num_user_features && !(features = (hb_feature_t *) malloc (num_user_features * sizeof (hb_feature_t)))) - return hb_shape_plan_get_empty (); - if (!(shape_plan = hb_object_create<hb_shape_plan_t> ())) { - free (features); - return hb_shape_plan_get_empty (); - } - - assert (props->direction != HB_DIRECTION_INVALID); - - hb_face_make_immutable (face); - shape_plan->default_shaper_list = shaper_list == NULL; - shape_plan->face_unsafe = face; - shape_plan->props = *props; - shape_plan->num_user_features = num_user_features; - shape_plan->user_features = features; - if (num_user_features) - memcpy (features, user_features, num_user_features * sizeof (hb_feature_t)); - - hb_shape_plan_plan (shape_plan, user_features, num_user_features, shaper_list); - - return shape_plan; -} - -/** - * hb_shape_plan_get_empty: - * - * - * - * Return value: (transfer full): - * - * Since: 0.9.7 - **/ -hb_shape_plan_t * -hb_shape_plan_get_empty (void) -{ - static const hb_shape_plan_t _hb_shape_plan_nil = { - HB_OBJECT_HEADER_STATIC, - - true, /* default_shaper_list */ - NULL, /* face */ - HB_SEGMENT_PROPERTIES_DEFAULT, /* props */ - - NULL, /* shaper_func */ - NULL, /* shaper_name */ - - NULL, /* user_features */ - 0, /* num_user_featurs */ - - { -#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_INVALID, -#include "hb-shaper-list.hh" -#undef HB_SHAPER_IMPLEMENT - } - }; - - return const_cast<hb_shape_plan_t *> (&_hb_shape_plan_nil); -} - -/** - * hb_shape_plan_reference: (skip) - * @shape_plan: a shape plan. - * - * - * - * Return value: (transfer full): - * - * Since: 0.9.7 - **/ -hb_shape_plan_t * -hb_shape_plan_reference (hb_shape_plan_t *shape_plan) -{ - return hb_object_reference (shape_plan); -} - -/** - * hb_shape_plan_destroy: (skip) - * @shape_plan: a shape plan. - * - * - * - * Since: 0.9.7 - **/ -void -hb_shape_plan_destroy (hb_shape_plan_t *shape_plan) -{ - if (!hb_object_destroy (shape_plan)) return; - -#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_DESTROY(shaper, shape_plan); -#include "hb-shaper-list.hh" -#undef HB_SHAPER_IMPLEMENT - - free (shape_plan->user_features); - - free (shape_plan); -} - -/** - * hb_shape_plan_set_user_data: (skip) - * @shape_plan: a shape plan. - * @key: - * @data: - * @destroy: - * @replace: - * - * - * - * Return value: - * - * Since: 0.9.7 - **/ -hb_bool_t -hb_shape_plan_set_user_data (hb_shape_plan_t *shape_plan, - hb_user_data_key_t *key, - void * data, - hb_destroy_func_t destroy, - hb_bool_t replace) -{ - return hb_object_set_user_data (shape_plan, key, data, destroy, replace); -} - -/** - * hb_shape_plan_get_user_data: (skip) - * @shape_plan: a shape plan. - * @key: - * - * - * - * Return value: (transfer none): - * - * Since: 0.9.7 - **/ -void * -hb_shape_plan_get_user_data (hb_shape_plan_t *shape_plan, - hb_user_data_key_t *key) -{ - return hb_object_get_user_data (shape_plan, key); -} - - -/** - * hb_shape_plan_execute: - * @shape_plan: a shape plan. - * @font: a font. - * @buffer: a buffer. - * @features: (array length=num_features): - * @num_features: - * - * - * - * Return value: - * - * Since: 0.9.7 - **/ -hb_bool_t -hb_shape_plan_execute (hb_shape_plan_t *shape_plan, - hb_font_t *font, - hb_buffer_t *buffer, - const hb_feature_t *features, - unsigned int num_features) -{ - DEBUG_MSG_FUNC (SHAPE_PLAN, shape_plan, - "num_features=%d shaper_func=%p", - num_features, - shape_plan->shaper_func); - - if (unlikely (hb_object_is_inert (shape_plan) || - hb_object_is_inert (buffer))) - return false; - - assert (shape_plan->face_unsafe == font->face); - assert (hb_segment_properties_equal (&shape_plan->props, &buffer->props)); - -#define HB_SHAPER_EXECUTE(shaper) \ - HB_STMT_START { \ - return HB_SHAPER_DATA (shaper, shape_plan) && \ - hb_##shaper##_shaper_font_data_ensure (font) && \ - _hb_##shaper##_shape (shape_plan, font, buffer, features, num_features); \ - } HB_STMT_END - - if (0) - ; -#define HB_SHAPER_IMPLEMENT(shaper) \ - else if (shape_plan->shaper_func == _hb_##shaper##_shape) \ - HB_SHAPER_EXECUTE (shaper); -#include "hb-shaper-list.hh" -#undef HB_SHAPER_IMPLEMENT - -#undef HB_SHAPER_EXECUTE - - return false; -} - - -/* - * caching - */ - -#if 0 -static unsigned int -hb_shape_plan_hash (const hb_shape_plan_t *shape_plan) -{ - return hb_segment_properties_hash (&shape_plan->props) + - shape_plan->default_shaper_list ? 0 : (intptr_t) shape_plan->shaper_func; -} -#endif - -/* User-feature caching is currently somewhat dumb: - * it only finds matches where the feature array is identical, - * not cases where the feature lists would be compatible for plan purposes - * but have different ranges, for example. - */ -struct hb_shape_plan_proposal_t -{ - const hb_segment_properties_t props; - const char * const *shaper_list; - const hb_feature_t *user_features; - unsigned int num_user_features; - hb_shape_func_t *shaper_func; -}; - -static inline hb_bool_t -hb_shape_plan_user_features_match (const hb_shape_plan_t *shape_plan, - const hb_shape_plan_proposal_t *proposal) -{ - if (proposal->num_user_features != shape_plan->num_user_features) return false; - for (unsigned int i = 0, n = proposal->num_user_features; i < n; i++) - if (proposal->user_features[i].tag != shape_plan->user_features[i].tag || - proposal->user_features[i].value != shape_plan->user_features[i].value || - proposal->user_features[i].start != shape_plan->user_features[i].start || - proposal->user_features[i].end != shape_plan->user_features[i].end) return false; - return true; -} - -static hb_bool_t -hb_shape_plan_matches (const hb_shape_plan_t *shape_plan, - const hb_shape_plan_proposal_t *proposal) -{ - return hb_segment_properties_equal (&shape_plan->props, &proposal->props) && - hb_shape_plan_user_features_match (shape_plan, proposal) && - ((shape_plan->default_shaper_list && proposal->shaper_list == NULL) || - (shape_plan->shaper_func == proposal->shaper_func)); -} - -static inline hb_bool_t -hb_non_global_user_features_present (const hb_feature_t *user_features, - unsigned int num_user_features) -{ - while (num_user_features) - if (user_features->start != 0 || user_features->end != (unsigned int) -1) - return true; - else - num_user_features--, user_features++; - return false; -} - -/** - * hb_shape_plan_create_cached: - * @face: - * @props: - * @user_features: (array length=num_user_features): - * @num_user_features: - * @shaper_list: (array zero-terminated=1): - * - * - * - * Return value: (transfer full): - * - * Since: 0.9.7 - **/ -hb_shape_plan_t * -hb_shape_plan_create_cached (hb_face_t *face, - const hb_segment_properties_t *props, - const hb_feature_t *user_features, - unsigned int num_user_features, - const char * const *shaper_list) -{ - DEBUG_MSG_FUNC (SHAPE_PLAN, NULL, - "face=%p num_features=%d shaper_list=%p", - face, - num_user_features, - shaper_list); - - hb_shape_plan_proposal_t proposal = { - *props, - shaper_list, - user_features, - num_user_features, - NULL - }; - - if (shaper_list) { - /* Choose shaper. Adapted from hb_shape_plan_plan(). - * Must choose shaper exactly the same way as that function. */ - for (const char * const *shaper_item = shaper_list; *shaper_item; shaper_item++) - if (0) - ; -#define HB_SHAPER_IMPLEMENT(shaper) \ - else if (0 == strcmp (*shaper_item, #shaper) && \ - hb_##shaper##_shaper_face_data_ensure (face)) \ - { \ - proposal.shaper_func = _hb_##shaper##_shape; \ - break; \ - } -#include "hb-shaper-list.hh" -#undef HB_SHAPER_IMPLEMENT - - if (unlikely (!proposal.shaper_func)) - return hb_shape_plan_get_empty (); - } - - -retry: - hb_face_t::plan_node_t *cached_plan_nodes = (hb_face_t::plan_node_t *) hb_atomic_ptr_get (&face->shape_plans); - for (hb_face_t::plan_node_t *node = cached_plan_nodes; node; node = node->next) - if (hb_shape_plan_matches (node->shape_plan, &proposal)) - { - DEBUG_MSG_FUNC (SHAPE_PLAN, node->shape_plan, "fulfilled from cache"); - return hb_shape_plan_reference (node->shape_plan); - } - - /* Not found. */ - - hb_shape_plan_t *shape_plan = hb_shape_plan_create (face, props, user_features, num_user_features, shaper_list); - - /* Don't add to the cache if face is inert. */ - if (unlikely (hb_object_is_inert (face))) - return shape_plan; - - /* Don't add the plan to the cache if there were user features with non-global ranges */ - - if (hb_non_global_user_features_present (user_features, num_user_features)) - return shape_plan; - - hb_face_t::plan_node_t *node = (hb_face_t::plan_node_t *) calloc (1, sizeof (hb_face_t::plan_node_t)); - if (unlikely (!node)) - return shape_plan; - - node->shape_plan = shape_plan; - node->next = cached_plan_nodes; - - if (!hb_atomic_ptr_cmpexch (&face->shape_plans, cached_plan_nodes, node)) { - hb_shape_plan_destroy (shape_plan); - free (node); - goto retry; - } - DEBUG_MSG_FUNC (SHAPE_PLAN, shape_plan, "inserted into cache"); - - return hb_shape_plan_reference (shape_plan); -} - -/** - * hb_shape_plan_get_shaper: - * @shape_plan: a shape plan. - * - * - * - * Return value: (transfer none): - * - * Since: 0.9.7 - **/ -const char * -hb_shape_plan_get_shaper (hb_shape_plan_t *shape_plan) -{ - return shape_plan->shaper_name; -} |