130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun/* 230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * Copyright 2011 Google Inc. All Rights Reserved. 330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * 430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * Licensed under the Apache License, Version 2.0 (the "License"); 530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * you may not use this file except in compliance with the License. 630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * You may obtain a copy of the License at 730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * 830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * http://www.apache.org/licenses/LICENSE-2.0 930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * 1030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * Unless required by applicable law or agreed to in writing, software 1130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * distributed under the License is distributed on an "AS IS" BASIS, 1230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * See the License for the specific language governing permissions and 1430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun * limitations under the License. 1530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun */ 1630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 1730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#ifndef SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_INDEX_SUBTABLE_H_ 1830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#define SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_INDEX_SUBTABLE_H_ 1930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 2030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#include <vector> 2130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 2230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#include "sfntly/port/java_iterator.h" 2330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#include "sfntly/table/subtable.h" 2430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#include "sfntly/table/bitmap/bitmap_glyph_info.h" 2530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 2630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurunnamespace sfntly { 2730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 2830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurunclass IndexSubTable : public SubTable { 2930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun public: 3030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun struct Format { 3130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun enum { 3230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun FORMAT_1 = 1, 3330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun FORMAT_2 = 2, 3430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun FORMAT_3 = 3, 3530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun FORMAT_4 = 4, 3630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun FORMAT_5 = 5, 3730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun }; 3830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun }; 3930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 4030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun class Builder : public SubTable::Builder { 4130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun public: 4230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual ~Builder(); 4330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 4430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun void Revert(); 4530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 4630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t index_format() { return index_format_; } 4730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t first_glyph_index() { return first_glyph_index_; } 4830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun void set_first_glyph_index(int32_t v) { first_glyph_index_ = v; } 4930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t last_glyph_index() { return last_glyph_index_; } 5030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun void set_last_glyph_index(int32_t v) { last_glyph_index_ = v; } 5130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t image_format() { return image_format_; } 5230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun void set_image_format(int32_t v) { image_format_ = v; } 5330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t image_data_offset() { return image_data_offset_; } 5430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun void set_image_data_offset(int32_t v) { image_data_offset_ = v; } 5530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 5630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual int32_t NumGlyphs() = 0; 5730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 5830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Gets the glyph info for the specified glyph id. 5930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @param glyphId the glyph id to look up 6030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @return the glyph info 6130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun CALLER_ATTACH virtual BitmapGlyphInfo* GlyphInfo(int32_t glyph_id); 6230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 6330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Gets the full offset of the glyph within the EBDT table. 6430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @param glyphId the glyph id 6530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @return the glyph offset 6630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual int32_t GlyphOffset(int32_t glyph_id); 6730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 6830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Gets the offset of the glyph relative to the block for this index 6930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // subtable. 7030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @param glyphId the glyph id 7130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @return the glyph offset 7230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual int32_t GlyphStartOffset(int32_t glyph_id) = 0; 7330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 7430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Gets the length of the glyph within the EBDT table. 7530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @param glyphId the glyph id 7630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @return the glyph offset 7730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual int32_t GlyphLength(int32_t glyph_id) = 0; 7830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 7930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Note: renamed from java iterator() 8030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun CALLER_ATTACH virtual Iterator<BitmapGlyphInfo, IndexSubTable::Builder>* 8130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun GetIterator() = 0; 8230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 8330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Static instantiation function. 8430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun static CALLER_ATTACH Builder* CreateBuilder(int32_t index_format); 8530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun static CALLER_ATTACH Builder* 8630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun CreateBuilder(ReadableFontData* data, 8730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t offset_to_index_sub_table_array, 8830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t array_index); 8930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 9030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // The following methods will never be called but they need to be here to 9130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // allow the BitmapSizeTable to see these methods through an abstract 9230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // reference. 9330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual CALLER_ATTACH FontDataTable* SubBuildTable(ReadableFontData* data); 9430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual void SubDataSet(); 9530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual int32_t SubDataSizeToSerialize(); 9630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual bool SubReadyToSerialize(); 9730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual int32_t SubSerialize(WritableFontData* new_data); 9830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 9930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun protected: 10030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Builder(int32_t data_size, int32_t index_format); 10130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Builder(int32_t index_format, 10230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t image_format, 10330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t image_data_offset, 10430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t data_size); 10530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Builder(WritableFontData* data, 10630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t first_glyph_index, 10730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t last_glyph_index); 10830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun Builder(ReadableFontData* data, 10930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t first_glyph_index, 11030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t last_glyph_index); 11130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 11230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Checks that the glyph id is within the correct range. If it returns the 11330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // offset of the glyph id from the start of the range. 11430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @param glyphId 11530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @return the offset of the glyphId from the start of the glyph range 11630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // @throws IndexOutOfBoundsException if the glyph id is not within the 11730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // correct range 11830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t CheckGlyphRange(int32_t glyph_id); 11930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t SerializeIndexSubHeader(WritableFontData* data); 12030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 12130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun private: 12230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun void Initialize(ReadableFontData* data); 12330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 12430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t first_glyph_index_; 12530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t last_glyph_index_; 12630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t index_format_; 12730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t image_format_; 12830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t image_data_offset_; 12930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun }; 13030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 13130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t index_format() { return index_format_; } 13230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t first_glyph_index() { return first_glyph_index_; } 13330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t last_glyph_index() { return last_glyph_index_; } 13430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t image_format() { return image_format_; } 13530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t image_data_offset() { return image_data_offset_; } 13630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 13730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun CALLER_ATTACH BitmapGlyphInfo* GlyphInfo(int32_t glyph_id); 13830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual int32_t GlyphOffset(int32_t glyph_id); 13930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual int32_t GlyphStartOffset(int32_t glyph_id) = 0; 14030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual int32_t GlyphLength(int32_t glyph_id) = 0; 14130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun virtual int32_t NumGlyphs() = 0; 14230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 14330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun static CALLER_ATTACH IndexSubTable* 14430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun CreateIndexSubTable(ReadableFontData* data, 14530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t offset_to_index_sub_table_array, 14630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t array_index); 14730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 14830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun protected: 14930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Note: the constructor does not implement offset/length form provided in 15030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // Java to avoid heavy lifting in constructors. Callers to call 15130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // GetDataLength() static method of the derived class to get proper 15230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun // length and slice ahead. 15330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun IndexSubTable(ReadableFontData* data, 15430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t first_glyph_index, 15530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t last_glyph_index); 15630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 15730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t CheckGlyphRange(int32_t glyph_id); 15830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun static int32_t CheckGlyphRange(int32_t glyph_id, 15930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t first_glyph_id, 16030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t last_glyph_id); 16130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 16230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun private: 16330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t first_glyph_index_; 16430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t last_glyph_index_; 16530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t index_format_; 16630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t image_format_; 16730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun int32_t image_data_offset_; 16830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun}; 16930d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Guruntypedef Ptr<IndexSubTable> IndexSubTablePtr; 17030d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Guruntypedef std::vector<IndexSubTablePtr> IndexSubTableList; 17130d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Guruntypedef Ptr<IndexSubTable::Builder> IndexSubTableBuilderPtr; 17230d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Guruntypedef std::vector<IndexSubTableBuilderPtr> IndexSubTableBuilderList; 17330d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Guruntypedef Iterator<BitmapGlyphInfo, IndexSubTable::Builder> BitmapGlyphInfoIter; 17430d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Guruntypedef Ptr<BitmapGlyphInfoIter> BitmapGlyphInfoIterPtr; 17530d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 17630d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun} // namespace sfntly 17730d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun 17830d4e1f3d81ad9f7a1aa14ce6d2ceb5df56c15cdSelim Gurun#endif // SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_INDEX_SUBTABLE_H_ 179