1 files changed, 98 insertions, 0 deletions
diff --git a/sample/subsetter/subset_util.cc b/sample/subsetter/subset_util.cc
new file mode 100644
index 0000000..f35eb25
--- /dev/null
+++ b/sample/subsetter/subset_util.cc
@@ -0,0 +1,98 @@
+/*
+ * 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