third_party/woff2/src/woff2_enc.h

   1 // Copyright 2014 Google Inc. All Rights Reserved.
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 // http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14 //
  15 // Library for converting WOFF2 format font files to their TTF versions.
  16
  17 #ifndef WOFF2_WOFF2_ENC_H_
  18 #define WOFF2_WOFF2_ENC_H_
  19
  20 #include <stddef.h>
  21 #include <inttypes.h>
  22 #include <string>
  23
  24 using std::string;
  25
  26
  27 namespace woff2 {
  28
  29 // Returns an upper bound on the size of the compressed file.
  30 size_t MaxWOFF2CompressedSize(const uint8_t* data, size_t length);
  31 size_t MaxWOFF2CompressedSize(const uint8_t* data, size_t length,
  32                               const string& extended_metadata);
  33
  34 // Compresses the font into the target buffer. *result_length should be at least
  35 // the value returned by MaxWOFF2CompressedSize(), upon return, it is set to the
  36 // actual compressed size. Returns true on successful compression.
  37 bool ConvertTTFToWOFF2(const uint8_t *data, size_t length,
  38                        uint8_t *result, size_t *result_length);
  39
  40 bool ConvertTTFToWOFF2(const uint8_t *data, size_t length,
  41                        uint8_t *result, size_t *result_length,
  42                        const string& extended_metadata);
  43
  44 } // namespace woff2
  45
  46 #endif  // WOFF2_WOFF2_ENC_H_