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/*
* Copyright 2011 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Remove VC++ nag on fopen.
#define _CRT_SECURE_NO_WARNINGS
#include "sample/subsetter/subset_util.h"
#include <stdio.h>
#include <vector>
#include <memory>
#include "sfntly/font.h"
#include "sfntly/data/memory_byte_array.h"
#include "sfntly/port/memory_output_stream.h"
#include "sfntly/port/type.h"
#include "sfntly/tag.h"
#include "sfntly/tools/subsetter/subsetter.h"
namespace sfntly {
SubsetUtil::SubsetUtil() {
}
SubsetUtil::~SubsetUtil() {
}
void SubsetUtil::Subset(const char *input_file_path,
const char *output_file_path) {
UNREFERENCED_PARAMETER(output_file_path);
ByteVector input_buffer;
FILE* input_file = fopen(input_file_path, "rb");
if (input_file == NULL) {
fprintf(stderr, "file not found\n");
return;
}
fseek(input_file, 0, SEEK_END);
size_t file_size = ftell(input_file);
fseek(input_file, 0, SEEK_SET);
input_buffer.resize(file_size);
size_t bytes_read = fread(&(input_buffer[0]), 1, file_size, input_file);
UNREFERENCED_PARAMETER(bytes_read);
fclose(input_file);
FontFactoryPtr factory;
factory.Attach(FontFactory::GetInstance());
FontArray font_array;
factory->LoadFonts(&input_buffer, &font_array);
if (font_array.empty() || font_array[0] == NULL)
return;
IntegerList glyphs;
for (int32_t i = 0; i < 10; i++) {
glyphs.push_back(i);
}
glyphs.push_back(11);
glyphs.push_back(10);
Ptr<Subsetter> subsetter = new Subsetter(font_array[0], factory);
subsetter->SetGlyphs(&glyphs);
IntegerSet remove_tables;
remove_tables.insert(Tag::DSIG);
subsetter->SetRemoveTables(&remove_tables);
FontBuilderPtr font_builder;
font_builder.Attach(subsetter->Subset());
FontPtr new_font;
new_font.Attach(font_builder->Build());
// TODO(arthurhsu): glyph renumbering/Loca table
// TODO(arthurhsu): alter CMaps
MemoryOutputStream output_stream;
factory->SerializeFont(new_font, &output_stream);
FILE* output_file = fopen(output_file_path, "wb");
fwrite(output_stream.Get(), 1, output_stream.Size(), output_file);
fflush(output_file);
fclose(output_file);
}
} // namespace sfntly
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