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83 lines
2.5 KiB
83 lines
2.5 KiB
14 years ago
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/*==LICENSE==*
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CyanWorlds.com Engine - MMOG client, server and tools
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Copyright (C) 2011 Cyan Worlds, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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You can contact Cyan Worlds, Inc. by email legal@cyan.com
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or by snail mail at:
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Cyan Worlds, Inc.
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14617 N Newport Hwy
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Mead, WA 99021
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*==LICENSE==*/
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//////////////////////////////////////////////////////////////////////////////
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// //
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// plFastWavReader - Quick, dirty, and highly optimized class for reading //
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// in the samples of a WAV file when you're in a hurry. //
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// ONLY WORKS WITH PCM (i.e. uncompressed) DATA //
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// //
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//////////////////////////////////////////////////////////////////////////////
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#ifndef _plFastWavReader_h
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#define _plFastWavReader_h
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#include "plAudioFileReader.h"
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//// Class Definition ////////////////////////////////////////////////////////
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class plRIFFChunk;
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class plFastWAV : public plAudioFileReader
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{
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public:
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plFastWAV( const char *path, plAudioCore::ChannelSelect whichChan = plAudioCore::kAll );
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virtual ~plFastWAV();
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virtual plWAVHeader &GetHeader( void );
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virtual void Open();
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virtual void Close( void );
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virtual UInt32 GetDataSize( void ) { return fDataSize / fChannelAdjust; }
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virtual float GetLengthInSecs( void );
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virtual hsBool SetPosition( UInt32 numBytes );
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virtual hsBool Read( UInt32 numBytes, void *buffer );
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virtual UInt32 NumBytesLeft( void );
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virtual hsBool IsValid( void ) { return ( fFileHandle != nil ) ? true : false; }
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protected:
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enum
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{
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kPCMFormatTag = 1
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};
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char fFilename[ 512 ];
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FILE * fFileHandle;
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plWAVHeader fHeader, fFakeHeader;
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UInt32 fDataStartPos, fCurrDataPos, fDataSize;
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UInt32 fChunkStart;
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plAudioCore::ChannelSelect fWhichChannel;
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UInt32 fChannelAdjust, fChannelOffset;
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void IError( const char *msg );
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bool ISeekToChunk( const char *type, plRIFFChunk *c );
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};
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#endif //_plFastWavReader_h
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