Home | History | Annotate | Download | only in subtly
      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 #include "subtly/utils.h"
     18 
     19 #include "sfntly/data/growable_memory_byte_array.h"
     20 #include "sfntly/data/memory_byte_array.h"
     21 #include "sfntly/font.h"
     22 #include "sfntly/font_factory.h"
     23 #include "sfntly/port/file_input_stream.h"
     24 #include "sfntly/port/memory_output_stream.h"
     25 
     26 namespace subtly {
     27 using namespace sfntly;
     28 
     29 CALLER_ATTACH Font* LoadFont(const char* font_path) {
     30   Ptr<FontFactory> font_factory;
     31   font_factory.Attach(FontFactory::GetInstance());
     32   FontArray fonts;
     33   LoadFonts(font_path, font_factory, &fonts);
     34   return fonts[0].Detach();
     35 }
     36 
     37 CALLER_ATTACH Font::Builder* LoadFontBuilder(const char* font_path) {
     38   FontFactoryPtr font_factory;
     39   font_factory.Attach(FontFactory::GetInstance());
     40   FontBuilderArray builders;
     41   LoadFontBuilders(font_path, font_factory, &builders);
     42   return builders[0].Detach();
     43 }
     44 
     45 void LoadFonts(const char* font_path, FontFactory* factory, FontArray* fonts) {
     46   FileInputStream input_stream;
     47   input_stream.Open(font_path);
     48   factory->LoadFonts(&input_stream, fonts);
     49   input_stream.Close();
     50 }
     51 
     52 void LoadFontBuilders(const char* font_path,
     53                       FontFactory* factory,
     54                       FontBuilderArray* builders) {
     55   FileInputStream input_stream;
     56   input_stream.Open(font_path);
     57   factory->LoadFontsForBuilding(&input_stream, builders);
     58   input_stream.Close();
     59 }
     60 
     61 bool SerializeFont(const char* font_path, Font* font) {
     62   if (!font_path)
     63     return false;
     64   FontFactoryPtr font_factory;
     65   font_factory.Attach(FontFactory::GetInstance());
     66   return SerializeFont(font_path, font_factory, font);
     67 }
     68 
     69 bool SerializeFont(const char* font_path, FontFactory* factory, Font* font) {
     70   if (!font_path || !factory || !font)
     71     return false;
     72   // Serializing the font to a stream.
     73   MemoryOutputStream output_stream;
     74   factory->SerializeFont(font, &output_stream);
     75   // Serializing the stream to a file.
     76   FILE* output_file = NULL;
     77 #if defined WIN32
     78   fopen_s(&output_file, font_path, "wb");
     79 #else
     80   output_file = fopen(font_path, "wb");
     81 #endif
     82   if (output_file == reinterpret_cast<FILE*>(NULL))
     83     return false;
     84   for (size_t i = 0; i < output_stream.Size(); ++i) {
     85     fwrite(&(output_stream.Get()[i]), 1, 1, output_file);
     86   }
     87   fflush(output_file);
     88   fclose(output_file);
     89   return true;
     90 }
     91 };
     92