|
|
|
|
/*==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==*/
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
// //
|
|
|
|
|
// plSoundDeswizzler - Quick helper class to extract a single channel of //
|
|
|
|
|
// data from stereo (or more)-channel data. //
|
|
|
|
|
// //
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
|
|
#include "hsTypes.h"
|
|
|
|
|
#include "plSoundDeswizzler.h"
|
|
|
|
|
#include <string.h>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
plSoundDeswizzler::plSoundDeswizzler( void *srcPtr, UInt32 srcLength, UInt8 numChannels, UInt32 sampleSize )
|
|
|
|
|
{
|
|
|
|
|
fNumSamples = srcLength / sampleSize;
|
|
|
|
|
fSampleSize = sampleSize;
|
|
|
|
|
fStride = fSampleSize * numChannels;
|
|
|
|
|
fData = (UInt8 *)srcPtr;
|
|
|
|
|
fOwnsData = false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
plSoundDeswizzler::plSoundDeswizzler( UInt32 srcLength, UInt8 numChannels, UInt32 sampleSize )
|
|
|
|
|
{
|
|
|
|
|
fNumSamples = srcLength / sampleSize;
|
|
|
|
|
fSampleSize = sampleSize;
|
|
|
|
|
fStride = fSampleSize * numChannels;
|
|
|
|
|
fData = TRACKED_NEW UInt8[ srcLength ];
|
|
|
|
|
fOwnsData = true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
plSoundDeswizzler::~plSoundDeswizzler()
|
|
|
|
|
{
|
|
|
|
|
if( fOwnsData )
|
|
|
|
|
delete [] fData;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void plSoundDeswizzler::Extract( UInt8 channelSelect, void *dest, UInt32 numBytesToProcess )
|
|
|
|
|
{
|
|
|
|
|
UInt8 *srcPtr = fData + channelSelect * fSampleSize;
|
|
|
|
|
UInt8 *destPtr = (UInt8 *)dest;
|
|
|
|
|
UInt32 i;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if( numBytesToProcess == 0 )
|
|
|
|
|
numBytesToProcess = fNumSamples;
|
|
|
|
|
else
|
|
|
|
|
numBytesToProcess /= fStride;
|
|
|
|
|
|
|
|
|
|
// Extract!
|
|
|
|
|
for( i = 0; i < numBytesToProcess; i++ )
|
|
|
|
|
{
|
|
|
|
|
memcpy( destPtr, srcPtr, fSampleSize );
|
|
|
|
|
destPtr += fSampleSize;
|
|
|
|
|
srcPtr += fStride;
|
|
|
|
|
}
|
|
|
|
|
}
|
