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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.
+
+Author: lode.vandevenne@gmail.com (Lode Vandevenne)
+Author: jyrki.alakuijala@gmail.com (Jyrki Alakuijala)
+*/
+
+/*
+The squeeze functions do enhanced LZ77 compression by optimal parsing with a
+cost model, rather than greedily choosing the longest length or using a single
+step of lazy matching like regular implementations.
+
+Since the cost model is based on the Huffman tree that can only be calculated
+after the LZ77 data is generated, there is a chicken and egg problem, and
+multiple runs are done with updated cost models to converge to a better
+solution.
+*/
+
+#ifndef ZOPFLI_SQUEEZE_H_
+#define ZOPFLI_SQUEEZE_H_
+
+#include "lz77.h"
+
+/*
+Calculates lit/len and dist pairs for given data.
+If instart is larger than 0, it uses values before instart as starting
+dictionary.
+*/
+void ZopfliLZ77Optimal(ZopfliBlockState *s,
+                       const unsigned char* in, size_t instart, size_t inend,
+                       ZopfliLZ77Store* store);
+
+/*
+Does the same as ZopfliLZ77Optimal, but optimized for the fixed tree of the
+deflate standard.
+The fixed tree never gives the best compression. But this gives the best
+possible LZ77 encoding possible with the fixed tree.
+This does not create or output any fixed tree, only LZ77 data optimized for
+using with a fixed tree.
+If instart is larger than 0, it uses values before instart as starting
+dictionary.
+*/
+void ZopfliLZ77OptimalFixed(ZopfliBlockState *s,
+                            const unsigned char* in,
+                            size_t instart, size_t inend,
+                            ZopfliLZ77Store* store);
+
+#endif  /* ZOPFLI_SQUEEZE_H_ */