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277 lines
6.7 KiB
C
277 lines
6.7 KiB
C
/*
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Copyright (C) 1994-1995 Apogee Software, Ltd.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (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.
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See the 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Modifications for JonoF's port by Jonathon Fowler (jonof@edgenetwk.com)
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*/
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/**********************************************************************
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file: _MULTIVC.H
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author: James R. Dose
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date: December 20, 1993
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Private header for MULTIVOC.C
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(c) Copyright 1993 James R. Dose. All Rights Reserved.
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**********************************************************************/
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#ifndef ___MULTIVC_H
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#define ___MULTIVC_H
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#include "openal.h"
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#ifndef TRUE
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#define TRUE ( 1 == 1 )
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#define FALSE ( !TRUE )
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#endif
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#define VOC_8BIT 0x0
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#define VOC_CT4_ADPCM 0x1
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#define VOC_CT3_ADPCM 0x2
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#define VOC_CT2_ADPCM 0x3
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#define VOC_16BIT 0x4
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#define VOC_ALAW 0x6
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#define VOC_MULAW 0x7
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#define VOC_CREATIVE_ADPCM 0x200
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#define T_SIXTEENBIT_STEREO 0
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#define T_8BITS 1
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#define T_MONO 2
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#define T_16BITSOURCE 4
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#define T_LEFTQUIET 8
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#define T_RIGHTQUIET 16
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#define T_DEFAULT T_SIXTEENBIT_STEREO
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#define MV_MaxPanPosition 31
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#define MV_NumPanPositions ( MV_MaxPanPosition + 1 )
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#define MV_MaxTotalVolume 255
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//#define MV_MaxVolume 63
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#define MV_NumVoices 8
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#define MIX_VOLUME( volume ) \
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( ( max( 0, min( ( volume ), 255 ) ) * ( MV_MaxVolume + 1 ) ) >> 8 )
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// ( ( max( 0, min( ( volume ), 255 ) ) ) >> 2 )
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//#define SILENCE_16BIT 0x80008000
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#define SILENCE_16BIT 0
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#define SILENCE_8BIT 0x80808080
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//#define SILENCE_16BIT_PAS 0
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#if defined(_WIN32)
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#define MixBufferSize (MV_GetBufferSize(MV_RequestedMixRate))
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#else
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#define MixBufferSize (512)
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#endif
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#define NumberOfBuffers 16
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#define TotalBufferSize ( MixBufferSize * NumberOfBuffers )
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#define PI 3.14159265358979323
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typedef enum
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{
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Raw,
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VOC,
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DemandFeed,
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WAV,
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OGG
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} wavedata;
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typedef enum
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{
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NoMoreData,
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KeepPlaying
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} playbackstatus;
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typedef struct VoiceNode
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{
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struct VoiceNode *next;
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struct VoiceNode *prev;
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wavedata wavetype;
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char bits;
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playbackstatus(*GetSound)(struct VoiceNode *voice);
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void (*mix)(uint32_t position, uint32_t rate,
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char *start, uint32_t length);
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char *NextBlock;
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char *LoopStart;
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char *LoopEnd;
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uint32_t LoopCount;
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uint32_t LoopSize;
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uint32_t BlockLength;
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uint32_t PitchScale;
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uint32_t FixedPointBufferSize;
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char *sound;
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uint32_t length;
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uint32_t SamplingRate;
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uint32_t RateScale;
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uint32_t position;
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int32_t Playing;
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int32_t handle;
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int32_t priority;
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void (*DemandFeed)(char **ptr, uint32_t *length);
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sounddef OGGstream;
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// char *bufsnd;
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char bufsnd[0x8000*4];
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int32_t downsample;
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int16_t *LeftVolume;
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int16_t *RightVolume;
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uint32_t callbackval;
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} VoiceNode;
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typedef struct
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{
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VoiceNode *start;
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VoiceNode *end;
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} VList;
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typedef struct
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{
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char left;
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char right;
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} Pan;
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typedef struct
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{
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MONO16 left;
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MONO16 right;
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} STEREO16;
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typedef struct
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{
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MONO16 left;
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MONO16 right;
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} SIGNEDSTEREO16;
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typedef struct
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{
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char left;
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char right;
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} STEREO8;
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typedef struct
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{
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char RIFF[ 4 ];
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uint32_t file_size;
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char WAVE[ 4 ];
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char fmt[ 4 ];
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uint32_t format_size;
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} riff_header;
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typedef struct
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{
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uint16_t wFormatTag;
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uint16_t nChannels;
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uint32_t nSamplesPerSec;
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uint32_t nAvgBytesPerSec;
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uint16_t nBlockAlign;
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uint16_t nBitsPerSample;
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} format_header;
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typedef struct
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{
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char DATA[ 4 ];
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uint32_t size;
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} data_header;
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typedef char HARSH_CLIP_TABLE_8[ MV_NumVoices * 256 ];
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#if defined(_WIN32)
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static uint32_t MV_GetBufferSize(uint32_t);
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#endif
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static void MV_Mix(VoiceNode *voice, int32_t buffer);
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static void MV_PlayVoice(VoiceNode *voice);
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static void MV_StopVoice(VoiceNode *voice);
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static int32_t MV_ServiceVoc(int32_t);
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static playbackstatus MV_GetNextVOCBlock(VoiceNode *voice);
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static playbackstatus MV_GetNextDemandFeedBlock(VoiceNode *voice);
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static playbackstatus MV_GetNextRawBlock(VoiceNode *voice);
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static playbackstatus MV_GetNextWAVBlock(VoiceNode *voice);
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// static void MV_ServiceRecord( void );
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static VoiceNode *MV_GetVoice(int32_t handle);
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static VoiceNode *MV_AllocVoice(int32_t priority);
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static int16_t *MV_GetVolumeTable(int32_t vol);
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static void MV_SetVoiceMixMode(VoiceNode *voice);
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static void MV_SetVoicePitch(VoiceNode *voice, uint32_t rate, int32_t pitchoffset);
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static void MV_CalcVolume(int32_t MaxLevel);
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static void MV_CalcPanTable(void);
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static void ClearBuffer_DW(void *ptr, int32_t data, int32_t length);
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#if defined(_MSC_VER)
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#define CDEC _cdecl
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#elif defined(_WIN32)
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#define CDEC __cdecl
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#else
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#define CDEC
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#endif
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void CDEC MV_Mix8BitMono(uint32_t position, uint32_t rate,
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char *start, uint32_t length);
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void CDEC MV_Mix8BitStereo(uint32_t position,
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uint32_t rate, char *start, uint32_t length);
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void CDEC MV_Mix16BitMono(uint32_t position,
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uint32_t rate, char *start, uint32_t length);
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void CDEC MV_Mix16BitStereo(uint32_t position,
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uint32_t rate, char *start, uint32_t length);
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void CDEC MV_Mix16BitMono16(uint32_t position,
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uint32_t rate, char *start, uint32_t length);
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void CDEC MV_Mix8BitMono16(uint32_t position, uint32_t rate,
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char *start, uint32_t length);
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void CDEC MV_Mix8BitStereo16(uint32_t position,
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uint32_t rate, char *start, uint32_t length);
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void CDEC MV_Mix16BitStereo16(uint32_t position,
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uint32_t rate, char *start, uint32_t length);
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void CDEC MV_16BitReverb(char *src, char *dest, VOLUME16 *volume, int32_t count);
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void CDEC MV_8BitReverb(char *src, char *dest, VOLUME16 *volume, int32_t count);
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void CDEC MV_16BitReverbFast(char *src, char *dest, int32_t count, int32_t shift);
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void CDEC MV_8BitReverbFast(char *src, char *dest, int32_t count, int32_t shift);
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#undef CDEC
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#endif
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