mirror of
https://foundry.openuru.org/gitblit/r/CWE-ou-minkata.git
synced 2025-07-14 02:27:40 -04:00
79 lines
3.0 KiB
C++
79 lines
3.0 KiB
C++
/*==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==*/
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
// //
|
|
// plWAVClipBuffer - Helper class for writing out WAV data in a buffered //
|
|
// manner, with support for clipping off the specified //
|
|
// amount at the end, but without knowing beforehand //
|
|
// exactly how much data we'll have. //
|
|
// //
|
|
// The algorithm goes something like this: we keep two buffers, both the //
|
|
// size of the amount we want to clip. We then start filling in the first //
|
|
// buffer, overflowing into the second buffer and wrapping back to the //
|
|
// first again in a circular fashion. When we fill up one buffer and are //
|
|
// about to advance to the next, we write that next buffer out. Why? //
|
|
// Because we know that, even if we got no more data in, we have enough //
|
|
// data in the first buffer to clip out the amount we want, so the other //
|
|
// half (which will have older data, being a circular buffer) can be //
|
|
// written out safely. //
|
|
// //
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _plWAVClipBuffer_h
|
|
#define _plWAVClipBuffer_h
|
|
|
|
//// Class Definition ////////////////////////////////////////////////////////
|
|
|
|
class CWaveFile;
|
|
class plWAVClipBuffer
|
|
{
|
|
public:
|
|
|
|
plWAVClipBuffer( UInt32 clipSize, CWaveFile *outFile );
|
|
~plWAVClipBuffer();
|
|
|
|
// Inits the buffer. Can re-init if you wish
|
|
void Init( UInt32 clipSize, CWaveFile *outFile );
|
|
|
|
// Writes/adds data to the buffer
|
|
hsBool WriteData( UInt32 size, UInt8 *data );
|
|
|
|
// Call at the end, flushes the buffer and performs the clipping
|
|
hsBool Flush( void );
|
|
|
|
protected:
|
|
UInt8 *fBuffers[ 2 ];
|
|
UInt8 fWhichBuffer; // 0 or 1
|
|
UInt32 fCursor, fBufferSize;
|
|
hsBool fFirstFlip, fFlushCalled;
|
|
|
|
CWaveFile *fOutFile;
|
|
|
|
void IShutdown( void );
|
|
};
|
|
|
|
#endif //_plWAVClipBuffer_h
|