47 lines
2.1 KiB
C
47 lines
2.1 KiB
C
|
#pragma once
|
||
|
|
/****************************************************************************
|
||
|
|
Copyright (c) 2008, Radon Labs GmbH
|
||
|
|
Copyright (c) 2011-2013,WebJet Business Division,CYOU
|
||
|
|
|
||
|
|
http://www.genesis-3d.com.cn
|
||
|
|
|
||
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
of this software and associated documentation files (the "Software"), to deal
|
||
|
|
in the Software without restriction, including without limitation the rights
|
||
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
copies of the Software, and to permit persons to whom the Software is
|
||
|
|
furnished to do so, subject to the following conditions:
|
||
|
|
|
||
|
|
The above copyright notice and this permission notice shall be included in
|
||
|
|
all copies or substantial portions of the Software.
|
||
|
|
|
||
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
|
THE SOFTWARE.
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#include "core/types.h"
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
namespace Util
|
||
|
|
{
|
||
|
|
class RunLengthCodec
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
/// get a safe size for the destination buffer
|
||
|
|
static SizeT GetSafeRLEBufferSize(SizeT srcBufferSize);
|
||
|
|
/// compute the decoded byte size from an RLE encoded stream
|
||
|
|
static SizeT ComputeDecodedSize(const uchar* srcPtr, SizeT srcNumBytes);
|
||
|
|
/// encode byte buffer to RLE stream, returns size of RLE stream
|
||
|
|
static SizeT Encode(const uchar* srcPtr, SizeT srcNumBytes, uchar* dstPtr, SizeT dstNumBytes);
|
||
|
|
/// decode RLE stream to byte buffer
|
||
|
|
static SizeT Decode(const uchar* srcPtr, SizeT srcNumBytes, uchar* dstPtr, SizeT dstNumBytes);
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace Util
|
||
|
|
//------------------------------------------------------------------------------
|