You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
2.3 KiB
74 lines
2.3 KiB
/*==LICENSE==* |
|
|
|
CyanWorlds.com Engine - MMOG client, server and tools |
|
Copyright (C) 2011 Cyan Worlds, Inc. |
|
|
|
This program is free software: you can redistribute it and/or modify |
|
it under the terms of the GNU General Public License as published by |
|
the Free Software Foundation, either version 3 of the License, or |
|
(at your option) any later version. |
|
|
|
This program is distributed in the hope that it will be useful, |
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
GNU General Public License for more details. |
|
|
|
You should have received a copy of the GNU General Public License |
|
along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
|
|
You can contact Cyan Worlds, Inc. by email legal@cyan.com |
|
or by snail mail at: |
|
Cyan Worlds, Inc. |
|
14617 N Newport Hwy |
|
Mead, WA 99021 |
|
|
|
*==LICENSE==*/ |
|
#ifndef plZlibStream_h_inc |
|
#define plZlibStream_h_inc |
|
|
|
#include "hsStream.h" |
|
#include "hsStlUtils.h" |
|
|
|
// |
|
// This is for reading a .gz file from a buffer, and writing the uncompressed data to a file. |
|
// Call open with the name of the uncompressed file, then call write with the compressed data. |
|
// |
|
class plZlibStream : public hsStream |
|
{ |
|
protected: |
|
hsStream* fOutput; |
|
void* fZStream; |
|
bool fDecompressedOk; |
|
|
|
enum Validate { kNeedMoreData, kInvalidHeader, kValidHeader }; |
|
Validate fHeader; |
|
std::vector<UInt8> fHeaderCache; |
|
|
|
std::wstring fFilename, fMode; // needed for rewind function |
|
|
|
int IValidateGzHeader(UInt32 byteCount, const void* buffer); |
|
|
|
public: |
|
plZlibStream(); |
|
virtual ~plZlibStream(); |
|
|
|
virtual hsBool Open(const char* filename, const char* mode); |
|
virtual hsBool Open(const wchar* filename, const wchar* mode); |
|
virtual hsBool Close(); |
|
virtual UInt32 Write(UInt32 byteCount, const void* buffer); |
|
|
|
// Since most functions don't check the return value from Write, you can |
|
// call this after you've passed in all your data to determine if it |
|
// decompressed ok |
|
bool DecompressedOk() { return fDecompressedOk; } |
|
|
|
// You can't use these |
|
virtual hsBool AtEnd(); |
|
virtual UInt32 Read(UInt32 byteCount, void* buffer); |
|
virtual void Skip(UInt32 deltaByteCount); |
|
virtual void Rewind(); |
|
virtual void FastFwd(); |
|
virtual UInt32 GetEOF(); |
|
}; |
|
|
|
#endif // plZlibStream_h_inc
|