| /* |
| Copyright 2016 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. |
| |
| Author: lode.vandevenne@gmail.com (Lode Vandevenne) |
| Author: jyrki.alakuijala@gmail.com (Jyrki Alakuijala) |
| */ |
| |
| /* |
| Utilities for using the lz77 symbols of the deflate spec. |
| */ |
| |
| #ifndef ZOPFLI_SYMBOLS_H_ |
| #define ZOPFLI_SYMBOLS_H_ |
| |
| /* Gets the amount of extra bits for the given dist, cfr. the DEFLATE spec. */ |
| int ZopfliGetDistExtraBits(int dist); |
| |
| /* Gets value of the extra bits for the given dist, cfr. the DEFLATE spec. */ |
| int ZopfliGetDistExtraBitsValue(int dist); |
| |
| /* Gets the symbol for the given dist, cfr. the DEFLATE spec. */ |
| int ZopfliGetDistSymbol(int dist); |
| |
| /* Gets the amount of extra bits for the given length, cfr. the DEFLATE spec. */ |
| int ZopfliGetLengthExtraBits(int l); |
| |
| /* Gets value of the extra bits for the given length, cfr. the DEFLATE spec. */ |
| int ZopfliGetLengthExtraBitsValue(int l); |
| |
| /* |
| Gets the symbol for the given length, cfr. the DEFLATE spec. |
| Returns the symbol in the range [257-285] (inclusive) |
| */ |
| int ZopfliGetLengthSymbol(int l); |
| |
| /* Gets the amount of extra bits for the given length symbol. */ |
| int ZopfliGetLengthSymbolExtraBits(int s); |
| |
| /* Gets the amount of extra bits for the given distance symbol. */ |
| int ZopfliGetDistSymbolExtraBits(int s); |
| |
| #endif /* ZOPFLI_SYMBOLS_H_ */ |
