diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-hdmx-table.hh')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-hdmx-table.hh | 159 |
1 files changed, 60 insertions, 99 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-hdmx-table.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-hdmx-table.hh index 953ccab80ef..96c1d1f634f 100644 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-hdmx-table.hh +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-hdmx-table.hh @@ -41,71 +41,31 @@ namespace OT { struct DeviceRecord { - struct SubsetView - { - const DeviceRecord *source_device_record; - unsigned int sizeDeviceRecord; - hb_subset_plan_t *subset_plan; - - void init (const DeviceRecord *source_device_record, - unsigned int sizeDeviceRecord, - hb_subset_plan_t *subset_plan) - { - this->source_device_record = source_device_record; - this->sizeDeviceRecord = sizeDeviceRecord; - this->subset_plan = subset_plan; - } - - unsigned int len () const - { return this->subset_plan->num_output_glyphs (); } - - const HBUINT8* operator [] (unsigned int new_gid) const - { - if (unlikely (new_gid >= len ())) return nullptr; - - hb_codepoint_t old_gid; - if (!this->subset_plan->old_gid_for_new_gid (new_gid, &old_gid)) - return &Null(HBUINT8); - - if (old_gid >= sizeDeviceRecord - DeviceRecord::min_size) - return nullptr; - return &(this->source_device_record->widthsZ[old_gid]); - } - }; - - static unsigned int get_size (unsigned int count) + static unsigned int get_size (unsigned count) { return hb_ceil_to_4 (min_size + count * HBUINT8::static_size); } - bool serialize (hb_serialize_context_t *c, const SubsetView &subset_view) + template<typename Iterator, + hb_requires (hb_is_iterator (Iterator))> + bool serialize (hb_serialize_context_t *c, unsigned pixelSize, Iterator it) { TRACE_SERIALIZE (this); - unsigned int size = get_size (subset_view.len ()); - if (unlikely (!c->allocate_size<DeviceRecord> (size))) - { - DEBUG_MSG(SUBSET, nullptr, "Couldn't allocate enough space for DeviceRecord: %d.", - size); - return_trace (false); - } - - this->pixelSize.set (subset_view.source_device_record->pixelSize); - this->maxWidth.set (subset_view.source_device_record->maxWidth); - - for (unsigned int i = 0; i < subset_view.len (); i++) - { - const HBUINT8 *width = subset_view[i]; - if (!width) - { - DEBUG_MSG(SUBSET, nullptr, "HDMX width for new gid %d is missing.", i); - return_trace (false); - } - widthsZ[i].set (*width); - } + unsigned length = it.len (); + + if (unlikely (!c->extend (*this, length))) return_trace (false); + + this->pixelSize = pixelSize; + this->maxWidth = + + it + | hb_reduce (hb_max, 0u); + + + it + | hb_sink (widthsZ.as_array (length)); return_trace (true); } - bool sanitize (hb_sanitize_context_t *c, unsigned int sizeDeviceRecord) const + bool sanitize (hb_sanitize_context_t *c, unsigned sizeDeviceRecord) const { TRACE_SANITIZE (this); return_trace (likely (c->check_struct (this) && @@ -135,62 +95,63 @@ struct hdmx return StructAtOffset<DeviceRecord> (&this->firstDeviceRecord, i * sizeDeviceRecord); } - bool serialize (hb_serialize_context_t *c, const hdmx *source_hdmx, hb_subset_plan_t *plan) + template<typename Iterator, + hb_requires (hb_is_iterator (Iterator))> + bool serialize (hb_serialize_context_t *c, unsigned version, Iterator it) { TRACE_SERIALIZE (this); if (unlikely (!c->extend_min ((*this)))) return_trace (false); - this->version.set (source_hdmx->version); - this->numRecords.set (source_hdmx->numRecords); - this->sizeDeviceRecord.set (DeviceRecord::get_size (plan->num_output_glyphs ())); + this->version = version; + this->numRecords = it.len (); + this->sizeDeviceRecord = DeviceRecord::get_size (it ? (*it).second.len () : 0); - for (unsigned int i = 0; i < source_hdmx->numRecords; i++) - { - DeviceRecord::SubsetView subset_view; - subset_view.init (&(*source_hdmx)[i], source_hdmx->sizeDeviceRecord, plan); + + it + | hb_apply ([c] (const hb_item_type<Iterator>& _) { + c->start_embed<DeviceRecord> ()->serialize (c, _.first, _.second); + }) + ; - if (!c->start_embed<DeviceRecord> ()->serialize (c, subset_view)) - return_trace (false); - } - - return_trace (true); + return_trace (c->successful); } - static size_t get_subsetted_size (const hdmx *source_hdmx, hb_subset_plan_t *plan) + + bool subset (hb_subset_context_t *c) const { - return min_size + source_hdmx->numRecords * DeviceRecord::get_size (plan->num_output_glyphs ()); + TRACE_SUBSET (this); + + hdmx *hdmx_prime = c->serializer->start_embed <hdmx> (); + if (unlikely (!hdmx_prime)) return_trace (false); + + auto it = + + hb_range ((unsigned) numRecords) + | hb_map ([c, this] (unsigned _) + { + const DeviceRecord *device_record = + &StructAtOffset<DeviceRecord> (&firstDeviceRecord, + _ * sizeDeviceRecord); + auto row = + + hb_range (c->plan->num_output_glyphs ()) + | hb_map (c->plan->reverse_glyph_map) + | hb_map ([=] (hb_codepoint_t _) + { + if (c->plan->is_empty_glyph (_)) + return Null(HBUINT8); + return device_record->widthsZ.as_array (get_num_glyphs ()) [_]; + }) + ; + return hb_pair ((unsigned) device_record->pixelSize, +row); + }) + ; + + hdmx_prime->serialize (c->serializer, version, it); + return_trace (true); } - bool subset (hb_subset_plan_t *plan) const + unsigned get_num_glyphs () const { - size_t dest_size = get_subsetted_size (this, plan); - hdmx *dest = (hdmx *) malloc (dest_size); - if (unlikely (!dest)) - { - DEBUG_MSG(SUBSET, nullptr, "Unable to alloc %lu for hdmx subset output.", (unsigned long) dest_size); - return false; - } - - hb_serialize_context_t c (dest, dest_size); - hdmx *hdmx_prime = c.start_serialize<hdmx> (); - if (!hdmx_prime || !hdmx_prime->serialize (&c, this, plan)) - { - free (dest); - DEBUG_MSG(SUBSET, nullptr, "Failed to serialize write new hdmx."); - return false; - } - c.end_serialize (); - - hb_blob_t *hdmx_prime_blob = hb_blob_create ((const char *) dest, - dest_size, - HB_MEMORY_MODE_READONLY, - dest, - free); - bool result = plan->add_table (HB_OT_TAG_hdmx, hdmx_prime_blob); - hb_blob_destroy (hdmx_prime_blob); - - return result; + return sizeDeviceRecord - DeviceRecord::min_size; } bool sanitize (hb_sanitize_context_t *c) const |