1 /* 2 * Copyright 2011 Google Inc. All Rights Reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 // Remove VC++ nag on fopen. 18 #define _CRT_SECURE_NO_WARNINGS 19 20 #include "sample/subsetter/subset_util.h" 21 22 #include <stdio.h> 23 24 #include <vector> 25 #include <memory> 26 27 #include "sfntly/font.h" 28 #include "sfntly/data/memory_byte_array.h" 29 #include "sfntly/port/memory_output_stream.h" 30 #include "sfntly/port/type.h" 31 #include "sfntly/tag.h" 32 #include "sfntly/tools/subsetter/subsetter.h" 33 34 namespace sfntly { 35 36 SubsetUtil::SubsetUtil() { 37 } 38 39 SubsetUtil::~SubsetUtil() { 40 } 41 42 void SubsetUtil::Subset(const char *input_file_path, 43 const char *output_file_path) { 44 UNREFERENCED_PARAMETER(output_file_path); 45 ByteVector input_buffer; 46 FILE* input_file = fopen(input_file_path, "rb"); 47 if (input_file == NULL) { 48 fprintf(stderr, "file not found\n"); 49 return; 50 } 51 fseek(input_file, 0, SEEK_END); 52 size_t file_size = ftell(input_file); 53 fseek(input_file, 0, SEEK_SET); 54 input_buffer.resize(file_size); 55 size_t bytes_read = fread(&(input_buffer[0]), 1, file_size, input_file); 56 UNREFERENCED_PARAMETER(bytes_read); 57 fclose(input_file); 58 59 FontFactoryPtr factory; 60 factory.Attach(FontFactory::GetInstance()); 61 62 FontArray font_array; 63 factory->LoadFonts(&input_buffer, &font_array); 64 if (font_array.empty() || font_array[0] == NULL) 65 return; 66 67 IntegerList glyphs; 68 for (int32_t i = 0; i < 10; i++) { 69 glyphs.push_back(i); 70 } 71 glyphs.push_back(11); 72 glyphs.push_back(10); 73 74 Ptr<Subsetter> subsetter = new Subsetter(font_array[0], factory); 75 subsetter->SetGlyphs(&glyphs); 76 IntegerSet remove_tables; 77 remove_tables.insert(Tag::DSIG); 78 subsetter->SetRemoveTables(&remove_tables); 79 80 FontBuilderPtr font_builder; 81 font_builder.Attach(subsetter->Subset()); 82 83 FontPtr new_font; 84 new_font.Attach(font_builder->Build()); 85 86 // TODO(arthurhsu): glyph renumbering/Loca table 87 // TODO(arthurhsu): alter CMaps 88 89 MemoryOutputStream output_stream; 90 factory->SerializeFont(new_font, &output_stream); 91 92 FILE* output_file = fopen(output_file_path, "wb"); 93 fwrite(output_stream.Get(), 1, output_stream.Size(), output_file); 94 fflush(output_file); 95 fclose(output_file); 96 } 97 98 } // namespace sfntly 99
