[ZLIB] Add support for windowBits, memLevel, raw

runtime/bin/filter.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef BIN_FILTER_H_
 #define BIN_FILTER_H_
 
 #include "bin/builtin.h"
 #include "bin/utils.h"
 
 #include "../third_party/zlib/zlib.h"
 
 
 namespace dart {
 namespace bin {
 
 class Filter {
  public:
   virtual ~Filter() {}
 
   virtual bool Init() = 0;
 
   /**
-   * On a succesfull call to Process, Process will take ownership of data. On
+   * On a successful call to Process, Process will take ownership of data. On
    * successive calls to either Processed or ~Filter, data will be freed with
    * a delete[] call.
    */
   virtual bool Process(uint8_t* data, intptr_t length) = 0;
-  virtual intptr_t Processed(uint8_t* buffer,
-                             intptr_t length,
-                             bool finish,
+  virtual intptr_t Processed(uint8_t* buffer, intptr_t length, bool finish,
                              bool end) = 0;
 
   static Dart_Handle SetFilterPointerNativeField(Dart_Handle filter,
                                                  Filter* filter_pointer);
   static Dart_Handle GetFilterPointerNativeField(Dart_Handle filter,
                                                  Filter** filter_pointer);
 
   bool initialized() const { return initialized_; }
   void set_initialized(bool value) { initialized_ = value; }
   uint8_t* processed_buffer() { return processed_buffer_; }
   intptr_t processed_buffer_size() const { return kFilterBufferSize; }
 
  protected:
   Filter() : initialized_(false) {}
 
  private:
   static const intptr_t kFilterBufferSize = 64 * KB;
   uint8_t processed_buffer_[kFilterBufferSize];
   bool initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(Filter);
 };
 
 class ZLibDeflateFilter : public Filter {
  public:
-  ZLibDeflateFilter(bool gzip = false, int32_t level = 6)
-    : gzip_(gzip), level_(level), current_buffer_(NULL) {}
+  ZLibDeflateFilter(bool gzip, int32_t level, int32_t window_bits,
+                    int32_t mem_level, int32_t strategy,
+                    uint8_t* dictionary, bool raw)
+      : gzip_(gzip), level_(level), window_bits_(window_bits),
+        mem_level_(mem_level), strategy_(strategy), dictionary_(dictionary),
+        raw_(raw), current_buffer_(NULL)
+    {}
   virtual ~ZLibDeflateFilter();
 
   virtual bool Init();
   virtual bool Process(uint8_t* data, intptr_t length);
-  virtual intptr_t Processed(uint8_t* buffer,
-                             intptr_t length,
-                             bool finish,
+  virtual intptr_t Processed(uint8_t* buffer, intptr_t length, bool finish,
                              bool end);
 
  private:
   const bool gzip_;
   const int32_t level_;
+  const int32_t window_bits_;
+  const int32_t mem_level_;
+  const int32_t strategy_;
+  uint8_t* dictionary_;
+  const bool raw_;
   uint8_t* current_buffer_;
   z_stream stream_;
 
   DISALLOW_COPY_AND_ASSIGN(ZLibDeflateFilter);
 };
 
 class ZLibInflateFilter : public Filter {
  public:
-  ZLibInflateFilter() : current_buffer_(NULL) {}
+  ZLibInflateFilter(int32_t window_bits, uint8_t* dictionary, bool raw)
+      : window_bits_(window_bits), dictionary_(dictionary), raw_(raw),
+        current_buffer_(NULL)
+    {}
   virtual ~ZLibInflateFilter();
 
   virtual bool Init();
   virtual bool Process(uint8_t* data, intptr_t length);
-  virtual intptr_t Processed(uint8_t* buffer,
-                             intptr_t length,
-                             bool finish,
+  virtual intptr_t Processed(uint8_t* buffer, intptr_t length, bool finish,
                              bool end);
 
  private:
+  const int32_t window_bits_;
+  uint8_t* dictionary_;
+  const bool raw_;
   uint8_t* current_buffer_;
   z_stream stream_;
 
   DISALLOW_COPY_AND_ASSIGN(ZLibInflateFilter);
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_FILTER_H_