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 <stdio.h>
18#include <stdlib.h>
19
20#include <map>
21#include <utility>
22
23#include "sfntly/font.h"
24#include "sfntly/table/core/cmap_table.h"
25#include "sfntly/tag.h"
26#include "subtly/stats.h"
27#include "subtly/subsetter.h"
28#include "subtly/utils.h"
29
30using namespace subtly;
31
32void PrintUsage(const char* program_name) {
33  fprintf(stdout, "Usage: %s <input_font_file>\n", program_name);
34}
35
36int main(int argc, const char** argv) {
37  const char* program_name = argv[0];
38  if (argc < 2) {
39    PrintUsage(program_name);
40    exit(1);
41  }
42
43  const char* input_font_path = argv[1];
44  const char* output_font_path = argv[2];
45  FontPtr font;
46  font.Attach(subtly::LoadFont(input_font_path));
47
48  int32_t original_size = TotalFontSize(font);
49  Ptr<Subsetter> subsetter = new Subsetter(font, NULL);
50  Ptr<Font> new_font;
51  new_font.Attach(subsetter->Subset());
52  if (!new_font) {
53    fprintf(stdout, "Cannot create subset.\n");
54    return 0;
55  }
56
57  subtly::SerializeFont(output_font_path, new_font);
58  subtly::PrintComparison(stdout, font, new_font);
59  int32_t new_size = TotalFontSize(new_font);
60  fprintf(stdout, "Went from %d to %d: %lf%% of original\n",
61          original_size, new_size,
62          static_cast<double>(new_size) / original_size * 100);
63  return 0;
64}
65