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-rw-r--r--games/eduke32/files/patch-source__jaudiolib__unixvoc.c2880
1 files changed, 0 insertions, 2880 deletions
diff --git a/games/eduke32/files/patch-source__jaudiolib__unixvoc.c b/games/eduke32/files/patch-source__jaudiolib__unixvoc.c
deleted file mode 100644
index eb475a196596..000000000000
--- a/games/eduke32/files/patch-source__jaudiolib__unixvoc.c
+++ /dev/null
@@ -1,2880 +0,0 @@
---- ./source/jaudiolib/unixvoc.c.orig Wed Aug 2 00:35:30 2006
-+++ ./source/jaudiolib/unixvoc.c Wed Aug 2 00:35:30 2006
-@@ -0,0 +1,2877 @@
-+/*
-+Copyright (C) 1994-1995 Apogee Software, Ltd.
-+
-+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 2
-+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.
-+
-+ou should have received a copy of the GNU General Public License
-+long with this program; if not, write to the Free Software
-+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-+
-+*/
-+/**********************************************************************
-+ module: MULTIVOC.C
-+
-+ author: James R. Dose
-+ date: December 20, 1993
-+
-+ Routines to provide multichannel digitized sound playback for
-+ Sound Blaster compatible sound cards.
-+
-+ (c) Copyright 1993 James R. Dose. All Rights Reserved.
-+**********************************************************************/
-+
-+#include <stdio.h>
-+#include <stdlib.h>
-+#include <string.h>
-+#include <time.h>
-+
-+#include "util.h"
-+#include "dpmi.h"
-+#include "usrhooks.h"
-+#include "interrup.h"
-+#include "dma.h"
-+#include "linklist.h"
-+#include "dsl.h"
-+
-+#include "pitch.h"
-+#include "multivoc.h"
-+#include "_multivc.h"
-+#include "debugio.h"
-+
-+// platform.h is from the build engine, but I need the byteswapping macros... --ryan.
-+#include "platform.h"
-+
-+#define RoundFixed( fixedval, bits ) \
-+ ( \
-+ ( \
-+ (fixedval) + ( 1 << ( (bits) - 1 ) )\
-+ ) >> (bits) \
-+ )
-+
-+#define IS_QUIET( ptr ) ( ( void * )( ptr ) == ( void * )&MV_VolumeTable[ 0 ] )
-+
-+static int MV_ReverbLevel;
-+static int MV_ReverbDelay;
-+static VOLUME16 *MV_ReverbTable = NULL;
-+
-+//static signed short MV_VolumeTable[ MV_MaxVolume + 1 ][ 256 ];
-+static signed short MV_VolumeTable[ 63 + 1 ][ 256 ];
-+
-+//static Pan MV_PanTable[ MV_NumPanPositions ][ MV_MaxVolume + 1 ];
-+static Pan MV_PanTable[ MV_NumPanPositions ][ 63 + 1 ];
-+
-+static int MV_Installed = FALSE;
-+static int MV_SoundCard = 1;
-+static int MV_TotalVolume = MV_MaxTotalVolume;
-+static int MV_MaxVoices = 1;
-+static int MV_Recording;
-+
-+static int MV_BufferSize = MixBufferSize;
-+static int MV_BufferLength;
-+
-+static int MV_NumberOfBuffers = NumberOfBuffers;
-+
-+static int MV_MixMode = MONO_8BIT;
-+static int MV_Channels = 1;
-+static int MV_Bits = 8;
-+
-+static int MV_Silence = SILENCE_8BIT;
-+static int MV_SwapLeftRight = FALSE;
-+
-+static int MV_RequestedMixRate;
-+static int MV_MixRate;
-+
-+static int MV_DMAChannel = -1;
-+static int MV_BuffShift;
-+
-+static int MV_TotalMemory;
-+
-+static int MV_BufferDescriptor;
-+static int MV_BufferEmpty[ NumberOfBuffers ];
-+char *MV_MixBuffer[ NumberOfBuffers + 1 ];
-+
-+static VoiceNode *MV_Voices = NULL;
-+
-+static volatile VoiceNode VoiceList;
-+static volatile VoiceNode VoicePool;
-+
-+/*static*/ int MV_MixPage = 0;
-+static int MV_VoiceHandle = MV_MinVoiceHandle;
-+
-+static void ( *MV_CallBackFunc )( unsigned long ) = NULL;
-+static void ( *MV_RecordFunc )( char *ptr, int length ) = NULL;
-+static void ( *MV_MixFunction )( VoiceNode *voice, int buffer );
-+
-+static int MV_MaxVolume = 63;
-+
-+char *MV_HarshClipTable;
-+char *MV_MixDestination;
-+short *MV_LeftVolume;
-+short *MV_RightVolume;
-+int MV_SampleSize = 1;
-+int MV_RightChannelOffset;
-+
-+unsigned long MV_MixPosition;
-+
-+int MV_ErrorCode = MV_Ok;
-+
-+#define MV_SetErrorCode( status ) \
-+ MV_ErrorCode = ( status );
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_ErrorString
-+
-+ Returns a pointer to the error message associated with an error
-+ number. A -1 returns a pointer the current error.
-+---------------------------------------------------------------------*/
-+
-+char *MV_ErrorString
-+ (
-+ int ErrorNumber
-+ )
-+
-+ {
-+ char *ErrorString;
-+
-+ switch( ErrorNumber )
-+ {
-+ case MV_Warning :
-+ case MV_Error :
-+ ErrorString = MV_ErrorString( MV_ErrorCode );
-+ break;
-+
-+ case MV_Ok :
-+ ErrorString = "Multivoc ok.";
-+ break;
-+
-+ case MV_UnsupportedCard :
-+ ErrorString = "Selected sound card is not supported by Multivoc.";
-+ break;
-+
-+ case MV_NotInstalled :
-+ ErrorString = "Multivoc not installed.";
-+ break;
-+
-+ case MV_NoVoices :
-+ ErrorString = "No free voices available to Multivoc.";
-+ break;
-+
-+ case MV_NoMem :
-+ ErrorString = "Out of memory in Multivoc.";
-+ break;
-+
-+ case MV_VoiceNotFound :
-+ ErrorString = "No voice with matching handle found.";
-+ break;
-+
-+ case MV_DPMI_Error :
-+ ErrorString = "DPMI Error in Multivoc.";
-+ break;
-+
-+ case MV_InvalidVOCFile :
-+ ErrorString = "Invalid VOC file passed in to Multivoc.";
-+ break;
-+
-+ case MV_InvalidWAVFile :
-+ ErrorString = "Invalid WAV file passed in to Multivoc.";
-+ break;
-+
-+ case MV_InvalidMixMode :
-+ ErrorString = "Invalid mix mode request in Multivoc.";
-+ break;
-+
-+ case MV_IrqFailure :
-+ ErrorString = "Playback failed, possibly due to an invalid or conflicting IRQ.";
-+ break;
-+
-+ case MV_DMAFailure :
-+ ErrorString = "Playback failed, possibly due to an invalid or conflicting DMA channel.";
-+ break;
-+
-+ case MV_DMA16Failure :
-+ ErrorString = "Playback failed, possibly due to an invalid or conflicting DMA channel. \n"
-+ "Make sure the 16-bit DMA channel is correct.";
-+ break;
-+
-+ case MV_NullRecordFunction :
-+ ErrorString = "Null record function passed to MV_StartRecording.";
-+ break;
-+
-+ default :
-+ ErrorString = "Unknown Multivoc error code.";
-+ break;
-+ }
-+
-+ return( ErrorString );
-+ }
-+
-+
-+/**********************************************************************
-+
-+ Memory locked functions:
-+
-+**********************************************************************/
-+
-+
-+#define MV_LockStart MV_Mix
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_Mix
-+
-+ Mixes the sound into the buffer.
-+---------------------------------------------------------------------*/
-+
-+static void MV_Mix
-+ (
-+ VoiceNode *voice,
-+ int buffer
-+ )
-+
-+ {
-+ char *start;
-+ int length;
-+ long voclength;
-+ unsigned long position;
-+ unsigned long rate;
-+ unsigned long FixedPointBufferSize;
-+
-+ if ( ( voice->length == 0 ) &&
-+ ( voice->GetSound != NULL ) &&
-+ ( voice->GetSound( voice ) != KeepPlaying ) )
-+ {
-+ return;
-+ }
-+
-+ length = MixBufferSize;
-+ FixedPointBufferSize = voice->FixedPointBufferSize;
-+
-+ MV_MixDestination = MV_MixBuffer[ buffer ];
-+ MV_LeftVolume = voice->LeftVolume;
-+ MV_RightVolume = voice->RightVolume;
-+
-+ if ( ( MV_Channels == 2 ) && ( IS_QUIET( MV_LeftVolume ) ) )
-+ {
-+ MV_LeftVolume = MV_RightVolume;
-+ MV_MixDestination += MV_RightChannelOffset;
-+ }
-+
-+ // Add this voice to the mix
-+ while( length > 0 )
-+ {
-+ start = voice->sound;
-+ rate = voice->RateScale;
-+ position = voice->position;
-+
-+ // Check if the last sample in this buffer would be
-+ // beyond the length of the sample block
-+ if ( ( position + FixedPointBufferSize ) >= voice->length )
-+ {
-+ if ( position < voice->length )
-+ {
-+ voclength = ( voice->length - position + rate - 1 ) / rate;
-+ }
-+ else
-+ {
-+ voice->GetSound( voice );
-+ return;
-+ }
-+ }
-+ else
-+ {
-+ voclength = length;
-+ }
-+
-+ voice->mix( position, rate, start, voclength );
-+
-+ if ( voclength & 1 )
-+ {
-+ MV_MixPosition += rate;
-+ voclength -= 1;
-+ }
-+ voice->position = MV_MixPosition;
-+
-+ length -= voclength;
-+
-+ if ( voice->position >= voice->length )
-+ {
-+ // Get the next block of sound
-+ if ( voice->GetSound( voice ) != KeepPlaying )
-+ {
-+ return;
-+ }
-+
-+ if ( length > 0 )
-+ {
-+ // Get the position of the last sample in the buffer
-+ FixedPointBufferSize = voice->RateScale * ( length - 1 );
-+ }
-+ }
-+ }
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_PlayVoice
-+
-+ Adds a voice to the play list.
-+---------------------------------------------------------------------*/
-+
-+void MV_PlayVoice
-+ (
-+ VoiceNode *voice
-+ )
-+
-+ {
-+ unsigned flags;
-+
-+ flags = DisableInterrupts();
-+ LL_SortedInsertion( &VoiceList, voice, prev, next, VoiceNode, priority );
-+
-+ RestoreInterrupts( flags );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_StopVoice
-+
-+ Removes the voice from the play list and adds it to the free list.
-+---------------------------------------------------------------------*/
-+
-+void MV_StopVoice
-+ (
-+ VoiceNode *voice
-+ )
-+
-+ {
-+ unsigned flags;
-+
-+ flags = DisableInterrupts();
-+
-+ // move the voice from the play list to the free list
-+ LL_Remove( voice, next, prev );
-+ LL_Add( (VoiceNode *)&VoicePool, voice, next, prev );
-+
-+ RestoreInterrupts( flags );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_ServiceVoc
-+
-+ Starts playback of the waiting buffer and mixes the next one.
-+---------------------------------------------------------------------*/
-+
-+// static int backcolor = 1;
-+
-+static int MV_ServiceVoc(int dummy_arg)
-+ {
-+ VoiceNode *voice;
-+ VoiceNode *next;
-+ char *buffer;
-+
-+ // Toggle which buffer we'll mix next
-+ MV_MixPage++;
-+ if ( MV_MixPage >= MV_NumberOfBuffers )
-+ {
-+ MV_MixPage -= MV_NumberOfBuffers;
-+ }
-+
-+ if ( MV_ReverbLevel == 0 )
-+ {
-+ // Initialize buffer
-+ //Commented out so that the buffer is always cleared.
-+ //This is so the guys at Echo Speech can mix into the
-+ //buffer even when no sounds are playing.
-+ //if ( !MV_BufferEmpty[ MV_MixPage ] )
-+ {
-+ ClearBuffer_DW( MV_MixBuffer[ MV_MixPage ], MV_Silence, MV_BufferSize >> 2 );
-+ MV_BufferEmpty[ MV_MixPage ] = TRUE;
-+ }
-+ }
-+ else
-+ {
-+ char *end;
-+ char *source;
-+ char *dest;
-+ int count;
-+ int length;
-+
-+ end = MV_MixBuffer[ 0 ] + MV_BufferLength;;
-+ dest = MV_MixBuffer[ MV_MixPage ];
-+ source = MV_MixBuffer[ MV_MixPage ] - MV_ReverbDelay;
-+ if ( source < MV_MixBuffer[ 0 ] )
-+ {
-+ source += MV_BufferLength;
-+ }
-+
-+ length = MV_BufferSize;
-+ while( length > 0 )
-+ {
-+ count = length;
-+ if ( source + count > end )
-+ {
-+ count = end - source;
-+ }
-+
-+ if ( MV_Bits == 16 )
-+ {
-+ if ( MV_ReverbTable != NULL )
-+ MV_16BitReverb( source, dest, (const VOLUME16 *)MV_ReverbTable, count / 2 );
-+ else
-+ MV_16BitReverbFast( source, dest, count / 2, MV_ReverbLevel );
-+ }
-+ else
-+ {
-+ if ( MV_ReverbTable != NULL )
-+ MV_8BitReverb( source, dest, (const VOLUME16 *)MV_ReverbTable, count );
-+ else
-+ MV_8BitReverbFast( source, dest, count, MV_ReverbLevel );
-+ }
-+
-+ // if we go through the loop again, it means that we've wrapped around the buffer
-+ source = MV_MixBuffer[ 0 ];
-+ dest += count;
-+ length -= count;
-+ }
-+ }
-+
-+ // Play any waiting voices
-+ for( voice = VoiceList.next; voice != &VoiceList; voice = next )
-+ {
-+// if ( ( voice < &MV_Voices[ 0 ] ) || ( voice > &MV_Voices[ 8 ] ) )
-+// {
-+// SetBorderColor(backcolor++);
-+// break;
-+// }
-+
-+ MV_BufferEmpty[ MV_MixPage ] = FALSE;
-+
-+ if (MV_MixFunction != NULL)
-+ MV_MixFunction( voice, MV_MixPage );
-+
-+ next = voice->next;
-+
-+ // Is this voice done?
-+ if ( !voice->Playing )
-+ {
-+ MV_StopVoice( voice );
-+
-+ if ( MV_CallBackFunc )
-+ {
-+ MV_CallBackFunc( voice->callbackval );
-+ }
-+ }
-+ }
-+ }
-+
-+
-+int leftpage = -1;
-+int rightpage = -1;
-+
-+void MV_ServiceGus( char **ptr, unsigned long *length )
-+ {
-+ if ( leftpage == MV_MixPage )
-+ {
-+ MV_ServiceVoc(0);
-+ }
-+
-+ leftpage = MV_MixPage;
-+
-+ *ptr = MV_MixBuffer[ MV_MixPage ];
-+ *length = MV_BufferSize;
-+ }
-+
-+void MV_ServiceRightGus( char **ptr, unsigned long *length )
-+ {
-+ if ( rightpage == MV_MixPage )
-+ {
-+ MV_ServiceVoc(0);
-+ }
-+
-+ rightpage = MV_MixPage;
-+
-+ *ptr = MV_MixBuffer[ MV_MixPage ] + MV_RightChannelOffset;
-+ *length = MV_BufferSize;
-+ }
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_GetNextVOCBlock
-+
-+ Interperate the information of a VOC format sound file.
-+---------------------------------------------------------------------*/
-+static __inline unsigned int get_le32(void *p0)
-+{
-+ //unsigned char *p = p0;
-+ //return p[0] | (p[1]<<8) | (p[2]<<16) | (p[3]<<24);
-+ unsigned int val = *((unsigned int *) p0);
-+ return(BUILDSWAP_INTEL32(val));
-+}
-+
-+static __inline unsigned int get_le16(void *p0)
-+{
-+ //unsigned char *p = p0;
-+ //return p[0] | (p[1]<<8);
-+ unsigned short val = *((unsigned short *) p0);
-+ return( (unsigned int) (BUILDSWAP_INTEL16(val)) );
-+}
-+
-+playbackstatus MV_GetNextVOCBlock
-+ (
-+ VoiceNode *voice
-+ )
-+
-+ {
-+ unsigned char *ptr;
-+ int blocktype=0;
-+ int lastblocktype=0;
-+ unsigned long blocklength=0l;
-+ unsigned long samplespeed=0l;
-+ unsigned int tc=0;
-+ int packtype=0;
-+ int voicemode=0;
-+ int done=0;
-+ unsigned BitsPerSample;
-+ unsigned Channels;
-+ unsigned Format;
-+
-+ if ( voice->BlockLength > 0 )
-+ {
-+ voice->position -= voice->length;
-+ voice->sound += voice->length >> 16;
-+ if ( voice->bits == 16 )
-+ {
-+ voice->sound += voice->length >> 16;
-+ }
-+ voice->length = min( voice->BlockLength, 0x8000 );
-+ voice->BlockLength -= voice->length;
-+ voice->length <<= 16;
-+ return( KeepPlaying );
-+ }
-+
-+ if ( ( voice->length > 0 ) && ( voice->LoopEnd != NULL ) &&
-+ ( voice->LoopStart != NULL ) )
-+ {
-+ voice->BlockLength = voice->LoopSize;
-+ voice->sound = voice->LoopStart;
-+ voice->position = 0;
-+ voice->length = min( voice->BlockLength, 0x8000 );
-+ voice->BlockLength -= voice->length;
-+ voice->length <<= 16;
-+ return( KeepPlaying );
-+ }
-+
-+ ptr = ( unsigned char * )voice->NextBlock;
-+
-+ voice->Playing = TRUE;
-+
-+ voicemode = 0;
-+ lastblocktype = 0;
-+ packtype = 0;
-+
-+ done = FALSE;
-+ while( !done )
-+ {
-+ // Stop playing if we get a NULL pointer
-+ if ( ptr == NULL )
-+ {
-+ voice->Playing = FALSE;
-+ done = TRUE;
-+ break;
-+ }
-+
-+ {
-+ unsigned tmp = get_le32(ptr);
-+ blocktype = tmp&255;
-+ blocklength = tmp>>8;
-+ }
-+ ptr += 4;
-+
-+ switch( blocktype )
-+ {
-+ case 0 :
-+ // End of data
-+ if ( ( voice->LoopStart == NULL ) ||
-+ ( (unsigned char *)voice->LoopStart >= ( ptr - 4 ) ) )
-+ {
-+ voice->Playing = FALSE;
-+ done = TRUE;
-+ }
-+ else
-+ {
-+ voice->BlockLength = ( ptr - 4 ) - (unsigned char *)voice->LoopStart;
-+ voice->sound = voice->LoopStart;
-+ voice->position = 0;
-+ voice->length = min( voice->BlockLength, 0x8000 );
-+ voice->BlockLength -= voice->length;
-+ voice->length <<= 16;
-+ return( KeepPlaying );
-+ }
-+ break;
-+
-+ case 1 :
-+ // Sound data block
-+ voice->bits = 8;
-+ if ( lastblocktype != 8 )
-+ {
-+ tc = ( unsigned int )*ptr << 8;
-+ packtype = *( ptr + 1 );
-+ }
-+
-+ ptr += 2;
-+ blocklength -= 2;
-+
-+ samplespeed = 256000000L / ( 65536 - tc );
-+
-+ // Skip packed or stereo data
-+ if ( ( packtype != 0 ) || ( voicemode != 0 ) )
-+ {
-+ ptr += blocklength;
-+ }
-+ else
-+ {
-+ done = TRUE;
-+ }
-+ voicemode = 0;
-+ break;
-+
-+ case 2 :
-+ // Sound continuation block
-+ samplespeed = voice->SamplingRate;
-+ done = TRUE;
-+ break;
-+
-+ case 3 :
-+ // Silence
-+ // Not implimented.
-+ ptr += blocklength;
-+ break;
-+
-+ case 4 :
-+ // Marker
-+ // Not implimented.
-+ ptr += blocklength;
-+ break;
-+
-+ case 5 :
-+ // ASCII string
-+ // Not implimented.
-+ ptr += blocklength;
-+ break;
-+
-+ case 6 :
-+ // Repeat begin
-+ if ( voice->LoopEnd == NULL )
-+ {
-+ voice->LoopCount = get_le16(ptr);
-+ voice->LoopStart = ptr + blocklength;
-+ }
-+ ptr += blocklength;
-+ break;
-+
-+ case 7 :
-+ // Repeat end
-+ ptr += blocklength;
-+ if ( lastblocktype == 6 )
-+ {
-+ voice->LoopCount = 0;
-+ }
-+ else
-+ {
-+ if ( ( voice->LoopCount > 0 ) && ( voice->LoopStart != NULL ) )
-+ {
-+ ptr = voice->LoopStart;
-+ if ( voice->LoopCount < 0xffff )
-+ {
-+ voice->LoopCount--;
-+ if ( voice->LoopCount == 0 )
-+ {
-+ voice->LoopStart = NULL;
-+ }
-+ }
-+ }
-+ }
-+ break;
-+
-+ case 8 :
-+ // Extended block
-+ voice->bits = 8;
-+ tc = get_le16(ptr);
-+ packtype = *( ptr + 2 );
-+ voicemode = *( ptr + 3 );
-+ ptr += blocklength;
-+ break;
-+
-+ case 9 :
-+ // New sound data block
-+ samplespeed = get_le32(ptr);
-+ BitsPerSample = ptr[4];
-+ Channels = ptr[5];
-+ Format = get_le16(ptr+6);
-+
-+ if ( ( BitsPerSample == 8 ) && ( Channels == 1 ) &&
-+ ( Format == VOC_8BIT ) )
-+ {
-+ ptr += 12;
-+ blocklength -= 12;
-+ voice->bits = 8;
-+ done = TRUE;
-+ }
-+ else if ( ( BitsPerSample == 16 ) && ( Channels == 1 ) &&
-+ ( Format == VOC_16BIT ) )
-+ {
-+ ptr += 12;
-+ blocklength -= 12;
-+ voice->bits = 16;
-+ done = TRUE;
-+ }
-+ else
-+ {
-+ ptr += blocklength;
-+ }
-+ break;
-+
-+ default :
-+ // Unknown data. Probably not a VOC file.
-+ voice->Playing = FALSE;
-+ done = TRUE;
-+ break;
-+ }
-+
-+ lastblocktype = blocktype;
-+ }
-+
-+ if ( voice->Playing )
-+ {
-+ voice->NextBlock = ptr + blocklength;
-+ voice->sound = ptr;
-+
-+ voice->SamplingRate = samplespeed;
-+ voice->RateScale = ( voice->SamplingRate * voice->PitchScale ) / MV_MixRate;
-+
-+ // Multiply by MixBufferSize - 1
-+ voice->FixedPointBufferSize = ( voice->RateScale * MixBufferSize ) -
-+ voice->RateScale;
-+
-+ if ( voice->LoopEnd != NULL )
-+ {
-+ if ( blocklength > ( unsigned long )voice->LoopEnd )
-+ {
-+ blocklength = ( unsigned long )voice->LoopEnd;
-+ }
-+ else
-+ {
-+ voice->LoopEnd = ( char * )blocklength;
-+ }
-+
-+ voice->LoopStart = voice->sound + ( unsigned long )voice->LoopStart;
-+ voice->LoopEnd = voice->sound + ( unsigned long )voice->LoopEnd;
-+ voice->LoopSize = voice->LoopEnd - voice->LoopStart;
-+ }
-+
-+ if ( voice->bits == 16 )
-+ {
-+ blocklength /= 2;
-+ }
-+
-+ voice->position = 0;
-+ voice->length = min( blocklength, 0x8000 );
-+ voice->BlockLength = blocklength - voice->length;
-+ voice->length <<= 16;
-+
-+ MV_SetVoiceMixMode( voice );
-+
-+ return( KeepPlaying );
-+ }
-+
-+ return( NoMoreData );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_GetNextDemandFeedBlock
-+
-+ Controls playback of demand fed data.
-+---------------------------------------------------------------------*/
-+
-+playbackstatus MV_GetNextDemandFeedBlock
-+ (
-+ VoiceNode *voice
-+ )
-+
-+ {
-+ if ( voice->BlockLength > 0 )
-+ {
-+ voice->position -= voice->length;
-+ voice->sound += voice->length >> 16;
-+ voice->length = min( voice->BlockLength, 0x8000 );
-+ voice->BlockLength -= voice->length;
-+ voice->length <<= 16;
-+
-+ return( KeepPlaying );
-+ }
-+
-+ if ( voice->DemandFeed == NULL )
-+ {
-+ return( NoMoreData );
-+ }
-+
-+ voice->position = 0;
-+ ( voice->DemandFeed )( &voice->sound, &voice->BlockLength );
-+ voice->length = min( voice->BlockLength, 0x8000 );
-+ voice->BlockLength -= voice->length;
-+ voice->length <<= 16;
-+
-+ if ( ( voice->length > 0 ) && ( voice->sound != NULL ) )
-+ {
-+ return( KeepPlaying );
-+ }
-+ return( NoMoreData );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_GetNextRawBlock
-+
-+ Controls playback of demand fed data.
-+---------------------------------------------------------------------*/
-+
-+playbackstatus MV_GetNextRawBlock
-+ (
-+ VoiceNode *voice
-+ )
-+
-+ {
-+ if ( voice->BlockLength <= 0 )
-+ {
-+ if ( voice->LoopStart == NULL )
-+ {
-+ voice->Playing = FALSE;
-+ return( NoMoreData );
-+ }
-+
-+ voice->BlockLength = voice->LoopSize;
-+ voice->NextBlock = voice->LoopStart;
-+ voice->length = 0;
-+ voice->position = 0;
-+ }
-+
-+ voice->sound = voice->NextBlock;
-+ voice->position -= voice->length;
-+ voice->length = min( voice->BlockLength, 0x8000 );
-+ voice->NextBlock += voice->length;
-+ if ( voice->bits == 16 )
-+ {
-+ voice->NextBlock += voice->length;
-+ }
-+ voice->BlockLength -= voice->length;
-+ voice->length <<= 16;
-+
-+ return( KeepPlaying );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_GetNextWAVBlock
-+
-+ Controls playback of demand fed data.
-+---------------------------------------------------------------------*/
-+
-+playbackstatus MV_GetNextWAVBlock
-+ (
-+ VoiceNode *voice
-+ )
-+
-+ {
-+ if ( voice->BlockLength <= 0 )
-+ {
-+ if ( voice->LoopStart == NULL )
-+ {
-+ voice->Playing = FALSE;
-+ return( NoMoreData );
-+ }
-+
-+ voice->BlockLength = voice->LoopSize;
-+ voice->NextBlock = voice->LoopStart;
-+ voice->length = 0;
-+ voice->position = 0;
-+ }
-+
-+ voice->sound = voice->NextBlock;
-+ voice->position -= voice->length;
-+ voice->length = min( voice->BlockLength, 0x8000 );
-+ voice->NextBlock += voice->length;
-+ if ( voice->bits == 16 )
-+ {
-+ voice->NextBlock += voice->length;
-+ }
-+ voice->BlockLength -= voice->length;
-+ voice->length <<= 16;
-+
-+ return( KeepPlaying );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_ServiceRecord
-+
-+ Starts recording of the waiting buffer.
-+---------------------------------------------------------------------*/
-+
-+static void MV_ServiceRecord
-+ (
-+ void
-+ )
-+
-+ {
-+ if ( MV_RecordFunc )
-+ {
-+ MV_RecordFunc( MV_MixBuffer[ 0 ] + MV_MixPage * MixBufferSize,
-+ MixBufferSize );
-+ }
-+
-+ // Toggle which buffer we'll mix next
-+ MV_MixPage++;
-+ if ( MV_MixPage >= NumberOfBuffers )
-+ {
-+ MV_MixPage = 0;
-+ }
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_GetVoice
-+
-+ Locates the voice with the specified handle.
-+---------------------------------------------------------------------*/
-+
-+VoiceNode *MV_GetVoice
-+ (
-+ int handle
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+ unsigned flags;
-+
-+ flags = DisableInterrupts();
-+
-+ for( voice = VoiceList.next; voice != &VoiceList; voice = voice->next )
-+ {
-+ if ( handle == voice->handle )
-+ {
-+ break;
-+ }
-+ }
-+
-+ RestoreInterrupts( flags );
-+
-+ if ( voice == &VoiceList )
-+ {
-+ MV_SetErrorCode( MV_VoiceNotFound );
-+
-+ // SBF - should this return null?
-+ return NULL;
-+ }
-+
-+ return( voice );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_VoicePlaying
-+
-+ Checks if the voice associated with the specified handle is
-+ playing.
-+---------------------------------------------------------------------*/
-+
-+int MV_VoicePlaying
-+ (
-+ int handle
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( FALSE );
-+ }
-+
-+ voice = MV_GetVoice( handle );
-+
-+ if ( voice == NULL )
-+ {
-+ return( FALSE );
-+ }
-+
-+ return( TRUE );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_KillAllVoices
-+
-+ Stops output of all currently active voices.
-+---------------------------------------------------------------------*/
-+
-+int MV_KillAllVoices
-+ (
-+ void
-+ )
-+
-+ {
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ // Remove all the voices from the list
-+ while( VoiceList.next != &VoiceList )
-+ {
-+ MV_Kill( VoiceList.next->handle );
-+ }
-+
-+ return( MV_Ok );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_Kill
-+
-+ Stops output of the voice associated with the specified handle.
-+---------------------------------------------------------------------*/
-+
-+int MV_Kill
-+ (
-+ int handle
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+ unsigned flags;
-+ unsigned long callbackval;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ flags = DisableInterrupts();
-+
-+ voice = MV_GetVoice( handle );
-+ if ( voice == NULL )
-+ {
-+ RestoreInterrupts( flags );
-+ MV_SetErrorCode( MV_VoiceNotFound );
-+ return( MV_Error );
-+ }
-+
-+ callbackval = voice->callbackval;
-+
-+ MV_StopVoice( voice );
-+
-+ RestoreInterrupts( flags );
-+
-+ if ( MV_CallBackFunc )
-+ {
-+ MV_CallBackFunc( callbackval );
-+ }
-+
-+ return( MV_Ok );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_VoicesPlaying
-+
-+ Determines the number of currently active voices.
-+---------------------------------------------------------------------*/
-+
-+int MV_VoicesPlaying
-+ (
-+ void
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+ int NumVoices = 0;
-+ unsigned flags;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( 0 );
-+ }
-+
-+ flags = DisableInterrupts();
-+
-+ for( voice = VoiceList.next; voice != &VoiceList; voice = voice->next )
-+ {
-+ NumVoices++;
-+ }
-+
-+ RestoreInterrupts( flags );
-+
-+ return( NumVoices );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_AllocVoice
-+
-+ Retrieve an inactive or lower priority voice for output.
-+---------------------------------------------------------------------*/
-+
-+VoiceNode *MV_AllocVoice
-+ (
-+ int priority
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+ VoiceNode *node;
-+ unsigned flags;
-+
-+//return( NULL );
-+ if ( MV_Recording )
-+ {
-+ return( NULL );
-+ }
-+
-+ flags = DisableInterrupts();
-+
-+ // Check if we have any free voices
-+ if ( LL_Empty( &VoicePool, next, prev ) )
-+ {
-+ // check if we have a higher priority than a voice that is playing.
-+ voice = VoiceList.next;
-+ for( node = voice->next; node != &VoiceList; node = node->next )
-+ {
-+ if ( node->priority < voice->priority )
-+ {
-+ voice = node;
-+ }
-+ }
-+
-+ if ( priority >= voice->priority )
-+ {
-+ MV_Kill( voice->handle );
-+ }
-+ }
-+
-+ // Check if any voices are in the voice pool
-+ if ( LL_Empty( &VoicePool, next, prev ) )
-+ {
-+ // No free voices
-+ RestoreInterrupts( flags );
-+ return( NULL );
-+ }
-+
-+ voice = VoicePool.next;
-+ LL_Remove( voice, next, prev );
-+ RestoreInterrupts( flags );
-+
-+ // Find a free voice handle
-+ do
-+ {
-+ MV_VoiceHandle++;
-+ if ( MV_VoiceHandle < MV_MinVoiceHandle )
-+ {
-+ MV_VoiceHandle = MV_MinVoiceHandle;
-+ }
-+ }
-+ while( MV_VoicePlaying( MV_VoiceHandle ) );
-+
-+ voice->handle = MV_VoiceHandle;
-+
-+ return( voice );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_VoiceAvailable
-+
-+ Checks if a voice can be play at the specified priority.
-+---------------------------------------------------------------------*/
-+
-+int MV_VoiceAvailable
-+ (
-+ int priority
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+ VoiceNode *node;
-+ unsigned flags;
-+
-+ // Check if we have any free voices
-+ if ( !LL_Empty( &VoicePool, next, prev ) )
-+ {
-+ return( TRUE );
-+ }
-+
-+ flags = DisableInterrupts();
-+
-+ // check if we have a higher priority than a voice that is playing.
-+ voice = VoiceList.next;
-+ for( node = VoiceList.next; node != &VoiceList; node = node->next )
-+ {
-+ if ( node->priority < voice->priority )
-+ {
-+ voice = node;
-+ }
-+ }
-+
-+ RestoreInterrupts( flags );
-+
-+ if ( ( voice != &VoiceList ) && ( priority >= voice->priority ) )
-+ {
-+ return( TRUE );
-+ }
-+
-+ return( FALSE );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetVoicePitch
-+
-+ Sets the pitch for the specified voice.
-+---------------------------------------------------------------------*/
-+
-+void MV_SetVoicePitch
-+ (
-+ VoiceNode *voice,
-+ unsigned long rate,
-+ int pitchoffset
-+ )
-+
-+ {
-+ voice->SamplingRate = rate;
-+ voice->PitchScale = PITCH_GetScale( pitchoffset );
-+ voice->RateScale = ( rate * voice->PitchScale ) / MV_MixRate;
-+
-+ // Multiply by MixBufferSize - 1
-+ voice->FixedPointBufferSize = ( voice->RateScale * MixBufferSize ) -
-+ voice->RateScale;
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetPitch
-+
-+ Sets the pitch for the voice associated with the specified handle.
-+---------------------------------------------------------------------*/
-+
-+int MV_SetPitch
-+ (
-+ int handle,
-+ int pitchoffset
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ voice = MV_GetVoice( handle );
-+ if ( voice == NULL )
-+ {
-+ MV_SetErrorCode( MV_VoiceNotFound );
-+ return( MV_Error );
-+ }
-+
-+ MV_SetVoicePitch( voice, voice->SamplingRate, pitchoffset );
-+
-+ return( MV_Ok );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetFrequency
-+
-+ Sets the frequency for the voice associated with the specified handle.
-+---------------------------------------------------------------------*/
-+
-+int MV_SetFrequency
-+ (
-+ int handle,
-+ int frequency
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ voice = MV_GetVoice( handle );
-+ if ( voice == NULL )
-+ {
-+ MV_SetErrorCode( MV_VoiceNotFound );
-+ return( MV_Error );
-+ }
-+
-+ MV_SetVoicePitch( voice, frequency, 0 );
-+
-+ return( MV_Ok );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_GetVolumeTable
-+
-+ Returns a pointer to the volume table associated with the specified
-+ volume.
-+---------------------------------------------------------------------*/
-+
-+static short *MV_GetVolumeTable
-+ (
-+ int vol
-+ )
-+
-+ {
-+ int volume;
-+ short *table;
-+
-+ volume = MIX_VOLUME( vol );
-+
-+ table = (short *)&MV_VolumeTable[ volume ];
-+
-+ return( table );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetVoiceMixMode
-+
-+ Selects which method should be used to mix the voice.
-+---------------------------------------------------------------------*/
-+
-+static void MV_SetVoiceMixMode
-+ (
-+ VoiceNode *voice
-+ )
-+
-+ {
-+ unsigned flags;
-+ int test;
-+
-+ flags = DisableInterrupts();
-+
-+ test = T_DEFAULT;
-+ if ( MV_Bits == 8 )
-+ {
-+ test |= T_8BITS;
-+ }
-+
-+ if ( voice->bits == 16 )
-+ {
-+ test |= T_16BITSOURCE;
-+ }
-+
-+ if ( MV_Channels == 1 )
-+ {
-+ test |= T_MONO;
-+ }
-+ else
-+ {
-+ if ( IS_QUIET( voice->RightVolume ) )
-+ {
-+ test |= T_RIGHTQUIET;
-+ }
-+ else if ( IS_QUIET( voice->LeftVolume ) )
-+ {
-+ test |= T_LEFTQUIET;
-+ }
-+ }
-+
-+ // Default case
-+ voice->mix = MV_Mix8BitMono;
-+
-+ switch( test )
-+ {
-+ case T_8BITS | T_MONO | T_16BITSOURCE :
-+ voice->mix = MV_Mix8BitMono16;
-+ break;
-+
-+ case T_8BITS | T_MONO :
-+ voice->mix = MV_Mix8BitMono;
-+ break;
-+
-+ case T_8BITS | T_16BITSOURCE | T_LEFTQUIET :
-+ MV_LeftVolume = MV_RightVolume;
-+ voice->mix = MV_Mix8BitMono16;
-+ break;
-+
-+ case T_8BITS | T_LEFTQUIET :
-+ MV_LeftVolume = MV_RightVolume;
-+ voice->mix = MV_Mix8BitMono;
-+ break;
-+
-+ case T_8BITS | T_16BITSOURCE | T_RIGHTQUIET :
-+ voice->mix = MV_Mix8BitMono16;
-+ break;
-+
-+ case T_8BITS | T_RIGHTQUIET :
-+ voice->mix = MV_Mix8BitMono;
-+ break;
-+
-+ case T_8BITS | T_16BITSOURCE :
-+ voice->mix = MV_Mix8BitStereo16;
-+ break;
-+
-+ case T_8BITS :
-+ voice->mix = MV_Mix8BitStereo;
-+ break;
-+
-+ case T_MONO | T_16BITSOURCE :
-+ voice->mix = MV_Mix16BitMono16;
-+ break;
-+
-+ case T_MONO :
-+ voice->mix = MV_Mix16BitMono;
-+ break;
-+
-+ case T_16BITSOURCE | T_LEFTQUIET :
-+ MV_LeftVolume = MV_RightVolume;
-+ voice->mix = MV_Mix16BitMono16;
-+ break;
-+
-+ case T_LEFTQUIET :
-+ MV_LeftVolume = MV_RightVolume;
-+ voice->mix = MV_Mix16BitMono;
-+ break;
-+
-+ case T_16BITSOURCE | T_RIGHTQUIET :
-+ voice->mix = MV_Mix16BitMono16;
-+ break;
-+
-+ case T_RIGHTQUIET :
-+ voice->mix = MV_Mix16BitMono;
-+ break;
-+
-+ case T_16BITSOURCE :
-+ voice->mix = MV_Mix16BitStereo16;
-+ break;
-+
-+ case T_SIXTEENBIT_STEREO :
-+ voice->mix = MV_Mix16BitStereo;
-+ break;
-+
-+ default :
-+ voice->mix = MV_Mix8BitMono;
-+ }
-+
-+ RestoreInterrupts( flags );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetVoiceVolume
-+
-+ Sets the stereo and mono volume level of the voice associated
-+ with the specified handle.
-+---------------------------------------------------------------------*/
-+
-+void MV_SetVoiceVolume
-+ (
-+ VoiceNode *voice,
-+ int vol,
-+ int left,
-+ int right
-+ )
-+
-+ {
-+ if ( MV_Channels == 1 )
-+ {
-+ left = vol;
-+ right = vol;
-+ }
-+
-+ if ( MV_SwapLeftRight )
-+ {
-+ // SBPro uses reversed panning
-+ voice->LeftVolume = MV_GetVolumeTable( right );
-+ voice->RightVolume = MV_GetVolumeTable( left );
-+ }
-+ else
-+ {
-+ voice->LeftVolume = MV_GetVolumeTable( left );
-+ voice->RightVolume = MV_GetVolumeTable( right );
-+ }
-+
-+ MV_SetVoiceMixMode( voice );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_EndLooping
-+
-+ Stops the voice associated with the specified handle from looping
-+ without stoping the sound.
-+---------------------------------------------------------------------*/
-+
-+int MV_EndLooping
-+ (
-+ int handle
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+ unsigned flags;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ flags = DisableInterrupts();
-+
-+ voice = MV_GetVoice( handle );
-+ if ( voice == NULL )
-+ {
-+ RestoreInterrupts( flags );
-+ MV_SetErrorCode( MV_VoiceNotFound );
-+ return( MV_Warning );
-+ }
-+
-+ voice->LoopCount = 0;
-+ voice->LoopStart = NULL;
-+ voice->LoopEnd = NULL;
-+
-+ RestoreInterrupts( flags );
-+
-+ return( MV_Ok );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetPan
-+
-+ Sets the stereo and mono volume level of the voice associated
-+ with the specified handle.
-+---------------------------------------------------------------------*/
-+
-+int MV_SetPan
-+ (
-+ int handle,
-+ int vol,
-+ int left,
-+ int right
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ voice = MV_GetVoice( handle );
-+ if ( voice == NULL )
-+ {
-+ MV_SetErrorCode( MV_VoiceNotFound );
-+ return( MV_Warning );
-+ }
-+
-+ MV_SetVoiceVolume( voice, vol, left, right );
-+
-+ return( MV_Ok );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_Pan3D
-+
-+ Set the angle and distance from the listener of the voice associated
-+ with the specified handle.
-+---------------------------------------------------------------------*/
-+
-+int MV_Pan3D
-+ (
-+ int handle,
-+ int angle,
-+ int distance
-+ )
-+
-+ {
-+ int left;
-+ int right;
-+ int mid;
-+ int volume;
-+ int status;
-+
-+ if ( distance < 0 )
-+ {
-+ distance = -distance;
-+ angle += MV_NumPanPositions / 2;
-+ }
-+
-+ volume = MIX_VOLUME( distance );
-+
-+ // Ensure angle is within 0 - 31
-+ angle &= MV_MaxPanPosition;
-+
-+ left = MV_PanTable[ angle ][ volume ].left;
-+ right = MV_PanTable[ angle ][ volume ].right;
-+ mid = max( 0, 255 - distance );
-+
-+ status = MV_SetPan( handle, mid, left, right );
-+
-+ return( status );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetReverb
-+
-+ Sets the level of reverb to add to mix.
-+---------------------------------------------------------------------*/
-+
-+void MV_SetReverb
-+ (
-+ int reverb
-+ )
-+
-+ {
-+ MV_ReverbLevel = MIX_VOLUME( reverb );
-+ MV_ReverbTable = &MV_VolumeTable[ MV_ReverbLevel ];
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetFastReverb
-+
-+ Sets the level of reverb to add to mix.
-+---------------------------------------------------------------------*/
-+
-+void MV_SetFastReverb
-+ (
-+ int reverb
-+ )
-+
-+ {
-+ MV_ReverbLevel = max( 0, min( 16, reverb ) );
-+ MV_ReverbTable = NULL;
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_GetMaxReverbDelay
-+
-+ Returns the maximum delay time for reverb.
-+---------------------------------------------------------------------*/
-+
-+int MV_GetMaxReverbDelay
-+ (
-+ void
-+ )
-+
-+ {
-+ int maxdelay;
-+
-+ maxdelay = MixBufferSize * MV_NumberOfBuffers;
-+
-+ return maxdelay;
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_GetReverbDelay
-+
-+ Returns the current delay time for reverb.
-+---------------------------------------------------------------------*/
-+
-+int MV_GetReverbDelay
-+ (
-+ void
-+ )
-+
-+ {
-+ return MV_ReverbDelay / MV_SampleSize;
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetReverbDelay
-+
-+ Sets the delay level of reverb to add to mix.
-+---------------------------------------------------------------------*/
-+
-+void MV_SetReverbDelay
-+ (
-+ int delay
-+ )
-+
-+ {
-+ int maxdelay;
-+
-+ maxdelay = MV_GetMaxReverbDelay();
-+ MV_ReverbDelay = max( MixBufferSize, min( delay, maxdelay ) );
-+ MV_ReverbDelay *= MV_SampleSize;
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetMixMode
-+
-+ Prepares Multivoc to play stereo of mono digitized sounds.
-+---------------------------------------------------------------------*/
-+
-+int MV_SetMixMode
-+ (
-+ int numchannels,
-+ int samplebits
-+ )
-+
-+ {
-+ int mode;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ mode = 0;
-+ if ( numchannels == 2 )
-+ {
-+ mode |= STEREO;
-+ }
-+ if ( samplebits == 16 )
-+ {
-+ mode |= SIXTEEN_BIT;
-+ }
-+
-+ MV_MixMode = mode;
-+
-+ MV_Channels = 1;
-+ if ( MV_MixMode & STEREO )
-+ {
-+ MV_Channels = 2;
-+ }
-+
-+ MV_Bits = 8;
-+ if ( MV_MixMode & SIXTEEN_BIT )
-+ {
-+ MV_Bits = 16;
-+ }
-+
-+ MV_BuffShift = 7 + MV_Channels;
-+ MV_SampleSize = sizeof( MONO8 ) * MV_Channels;
-+
-+ if ( MV_Bits == 8 )
-+ {
-+ MV_Silence = SILENCE_8BIT;
-+ }
-+ else
-+ {
-+ MV_Silence = SILENCE_16BIT;
-+ MV_BuffShift += 1;
-+ MV_SampleSize *= 2;
-+ }
-+
-+ MV_BufferSize = MixBufferSize * MV_SampleSize;
-+ MV_NumberOfBuffers = TotalBufferSize / MV_BufferSize;
-+ MV_BufferLength = TotalBufferSize;
-+
-+ MV_RightChannelOffset = MV_SampleSize / 2;
-+
-+ return( MV_Ok );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_StartPlayback
-+
-+ Starts the sound playback engine.
-+---------------------------------------------------------------------*/
-+
-+int MV_StartPlayback
-+ (
-+ void
-+ )
-+
-+ {
-+ int status;
-+ int buffer;
-+
-+ // Initialize the buffers
-+ ClearBuffer_DW( MV_MixBuffer[ 0 ], MV_Silence, TotalBufferSize >> 2 );
-+ for( buffer = 0; buffer < MV_NumberOfBuffers; buffer++ )
-+ {
-+ MV_BufferEmpty[ buffer ] = TRUE;
-+ }
-+
-+ // Set the mix buffer variables
-+ MV_MixPage = 1;
-+
-+ MV_MixFunction = MV_Mix;
-+
-+ status = DSL_BeginBufferedPlayback( MV_MixBuffer[ 0 ],
-+ TotalBufferSize, MV_NumberOfBuffers,
-+ MV_RequestedMixRate, MV_MixMode, MV_ServiceVoc );
-+
-+ if ( status != DSL_Ok )
-+ {
-+ MV_SetErrorCode( MV_BlasterError );
-+ return( MV_Error );
-+ }
-+
-+ MV_MixRate = DSL_GetPlaybackRate();
-+
-+ return( MV_Ok );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_StopPlayback
-+
-+ Stops the sound playback engine.
-+---------------------------------------------------------------------*/
-+
-+void MV_StopPlayback
-+ (
-+ void
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+ VoiceNode *next;
-+ unsigned flags;
-+
-+ DSL_StopPlayback();
-+
-+ // Make sure all callbacks are done.
-+ flags = DisableInterrupts();
-+
-+ for( voice = VoiceList.next; voice != &VoiceList; voice = next )
-+ {
-+ next = voice->next;
-+
-+ MV_StopVoice( voice );
-+
-+ if ( MV_CallBackFunc )
-+ {
-+ MV_CallBackFunc( voice->callbackval );
-+ }
-+ }
-+
-+ RestoreInterrupts( flags );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_StartRecording
-+
-+ Starts the sound recording engine.
-+---------------------------------------------------------------------*/
-+
-+int MV_StartRecording
-+ (
-+ int MixRate,
-+ void ( *function )( char *ptr, int length )
-+ )
-+
-+ {
-+ MV_SetErrorCode( MV_UnsupportedCard );
-+ return( MV_Error );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_StopRecord
-+
-+ Stops the sound record engine.
-+---------------------------------------------------------------------*/
-+
-+void MV_StopRecord
-+ (
-+ void
-+ )
-+
-+ {
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_StartDemandFeedPlayback
-+
-+ Plays a digitized sound from a user controlled buffering system.
-+---------------------------------------------------------------------*/
-+
-+int MV_StartDemandFeedPlayback
-+ (
-+ void ( *function )( char **ptr, unsigned long *length ),
-+ int rate,
-+ int pitchoffset,
-+ int vol,
-+ int left,
-+ int right,
-+ int priority,
-+ unsigned long callbackval
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ // Request a voice from the voice pool
-+ voice = MV_AllocVoice( priority );
-+ if ( voice == NULL )
-+ {
-+ MV_SetErrorCode( MV_NoVoices );
-+ return( MV_Error );
-+ }
-+
-+ voice->wavetype = DemandFeed;
-+ voice->bits = 8;
-+ voice->GetSound = MV_GetNextDemandFeedBlock;
-+ voice->NextBlock = NULL;
-+ voice->DemandFeed = function;
-+ voice->LoopStart = NULL;
-+ voice->LoopCount = 0;
-+ voice->BlockLength = 0;
-+ voice->position = 0;
-+ voice->sound = NULL;
-+ voice->length = 0;
-+ voice->BlockLength = 0;
-+ voice->Playing = TRUE;
-+ voice->next = NULL;
-+ voice->prev = NULL;
-+ voice->priority = priority;
-+ voice->callbackval = callbackval;
-+
-+ MV_SetVoicePitch( voice, rate, pitchoffset );
-+ MV_SetVoiceVolume( voice, vol, left, right );
-+ MV_PlayVoice( voice );
-+
-+ return( voice->handle );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_PlayRaw
-+
-+ Begin playback of sound data with the given sound levels and
-+ priority.
-+---------------------------------------------------------------------*/
-+
-+int MV_PlayRaw
-+ (
-+ char *ptr,
-+ unsigned long length,
-+ unsigned rate,
-+ int pitchoffset,
-+ int vol,
-+ int left,
-+ int right,
-+ int priority,
-+ unsigned long callbackval
-+ )
-+
-+ {
-+ int status;
-+
-+ status = MV_PlayLoopedRaw( ptr, length, NULL, NULL, rate, pitchoffset,
-+ vol, left, right, priority, callbackval );
-+
-+ return( status );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_PlayLoopedRaw
-+
-+ Begin playback of sound data with the given sound levels and
-+ priority.
-+---------------------------------------------------------------------*/
-+
-+int MV_PlayLoopedRaw
-+ (
-+ char *ptr,
-+ long length,
-+ char *loopstart,
-+ char *loopend,
-+ unsigned rate,
-+ int pitchoffset,
-+ int vol,
-+ int left,
-+ int right,
-+ int priority,
-+ unsigned long callbackval
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ // Request a voice from the voice pool
-+ voice = MV_AllocVoice( priority );
-+ if ( voice == NULL )
-+ {
-+ MV_SetErrorCode( MV_NoVoices );
-+ return( MV_Error );
-+ }
-+
-+ voice->wavetype = Raw;
-+ voice->bits = 8;
-+ voice->GetSound = MV_GetNextRawBlock;
-+ voice->Playing = TRUE;
-+ voice->NextBlock = ptr;
-+ voice->position = 0;
-+ voice->BlockLength = length;
-+ voice->length = 0;
-+ voice->next = NULL;
-+ voice->prev = NULL;
-+ voice->priority = priority;
-+ voice->callbackval = callbackval;
-+ voice->LoopStart = loopstart;
-+ voice->LoopEnd = loopend;
-+ voice->LoopSize = ( voice->LoopEnd - voice->LoopStart ) + 1;
-+
-+ MV_SetVoicePitch( voice, rate, pitchoffset );
-+ MV_SetVoiceVolume( voice, vol, left, right );
-+ MV_PlayVoice( voice );
-+
-+ return( voice->handle );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_PlayWAV
-+
-+ Begin playback of sound data with the given sound levels and
-+ priority.
-+---------------------------------------------------------------------*/
-+
-+int MV_PlayWAV
-+ (
-+ char *ptr,
-+ int pitchoffset,
-+ int vol,
-+ int left,
-+ int right,
-+ int priority,
-+ unsigned long callbackval
-+ )
-+
-+ {
-+ int status;
-+
-+ status = MV_PlayLoopedWAV( ptr, -1, -1, pitchoffset, vol, left, right,
-+ priority, callbackval );
-+
-+ return( status );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_PlayWAV3D
-+
-+ Begin playback of sound data at specified angle and distance
-+ from listener.
-+---------------------------------------------------------------------*/
-+
-+int MV_PlayWAV3D
-+ (
-+ char *ptr,
-+ int pitchoffset,
-+ int angle,
-+ int distance,
-+ int priority,
-+ unsigned long callbackval
-+ )
-+
-+ {
-+ int left;
-+ int right;
-+ int mid;
-+ int volume;
-+ int status;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ if ( distance < 0 )
-+ {
-+ distance = -distance;
-+ angle += MV_NumPanPositions / 2;
-+ }
-+
-+ volume = MIX_VOLUME( distance );
-+
-+ // Ensure angle is within 0 - 31
-+ angle &= MV_MaxPanPosition;
-+
-+ left = MV_PanTable[ angle ][ volume ].left;
-+ right = MV_PanTable[ angle ][ volume ].right;
-+ mid = max( 0, 255 - distance );
-+
-+ status = MV_PlayWAV( ptr, pitchoffset, mid, left, right, priority,
-+ callbackval );
-+
-+ return( status );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_PlayLoopedWAV
-+
-+ Begin playback of sound data with the given sound levels and
-+ priority.
-+---------------------------------------------------------------------*/
-+
-+int MV_PlayLoopedWAV
-+ (
-+ char *ptr,
-+ long loopstart,
-+ long loopend,
-+ int pitchoffset,
-+ int vol,
-+ int left,
-+ int right,
-+ int priority,
-+ unsigned long callbackval
-+ )
-+
-+ {
-+ riff_header *riff;
-+ format_header *format;
-+ data_header *data;
-+ VoiceNode *voice;
-+ int length;
-+ int absloopend;
-+ int absloopstart;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ riff = ( riff_header * )ptr;
-+
-+ if ( ( strncmp( riff->RIFF, "RIFF", 4 ) != 0 ) ||
-+ ( strncmp( riff->WAVE, "WAVE", 4 ) != 0 ) ||
-+ ( strncmp( riff->fmt, "fmt ", 4) != 0 ) )
-+ {
-+ MV_SetErrorCode( MV_InvalidWAVFile );
-+ return( MV_Error );
-+ }
-+
-+ format = ( format_header * )( riff + 1 );
-+ data = ( data_header * )( ( ( char * )format ) + riff->format_size );
-+
-+ // Check if it's PCM data.
-+ if ( format->wFormatTag != 1 )
-+ {
-+ MV_SetErrorCode( MV_InvalidWAVFile );
-+ return( MV_Error );
-+ }
-+
-+ if ( format->nChannels != 1 )
-+ {
-+ MV_SetErrorCode( MV_InvalidWAVFile );
-+ return( MV_Error );
-+ }
-+
-+ if ( ( format->nBitsPerSample != 8 ) &&
-+ ( format->nBitsPerSample != 16 ) )
-+ {
-+ MV_SetErrorCode( MV_InvalidWAVFile );
-+ return( MV_Error );
-+ }
-+
-+ if ( strncmp( data->DATA, "data", 4 ) != 0 )
-+ {
-+ MV_SetErrorCode( MV_InvalidWAVFile );
-+ return( MV_Error );
-+ }
-+
-+ // Request a voice from the voice pool
-+ voice = MV_AllocVoice( priority );
-+ if ( voice == NULL )
-+ {
-+ MV_SetErrorCode( MV_NoVoices );
-+ return( MV_Error );
-+ }
-+
-+ voice->wavetype = WAV;
-+ voice->bits = format->nBitsPerSample;
-+ voice->GetSound = MV_GetNextWAVBlock;
-+
-+ length = data->size;
-+ absloopstart = loopstart;
-+ absloopend = loopend;
-+ if ( voice->bits == 16 )
-+ {
-+ loopstart *= 2;
-+ data->size &= ~1;
-+ loopend *= 2;
-+ length /= 2;
-+ }
-+
-+ loopend = min( loopend, (long)data->size );
-+ absloopend = min( absloopend, length );
-+
-+ voice->Playing = TRUE;
-+ voice->DemandFeed = NULL;
-+ voice->LoopStart = NULL;
-+ voice->LoopCount = 0;
-+ voice->position = 0;
-+ voice->length = 0;
-+ voice->BlockLength = absloopend;
-+ voice->NextBlock = ( char * )( data + 1 );
-+ voice->next = NULL;
-+ voice->prev = NULL;
-+ voice->priority = priority;
-+ voice->callbackval = callbackval;
-+ voice->LoopStart = voice->NextBlock + loopstart;
-+ voice->LoopEnd = voice->NextBlock + loopend;
-+ voice->LoopSize = absloopend - absloopstart;
-+
-+ if ( ( loopstart >= (long)data->size ) || ( loopstart < 0 ) )
-+ {
-+ voice->LoopStart = NULL;
-+ voice->LoopEnd = NULL;
-+ voice->BlockLength = length;
-+ }
-+
-+ MV_SetVoicePitch( voice, format->nSamplesPerSec, pitchoffset );
-+ MV_SetVoiceVolume( voice, vol, left, right );
-+ MV_PlayVoice( voice );
-+
-+ return( voice->handle );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_PlayVOC3D
-+
-+ Begin playback of sound data at specified angle and distance
-+ from listener.
-+---------------------------------------------------------------------*/
-+
-+int MV_PlayVOC3D
-+ (
-+ char *ptr,
-+ int pitchoffset,
-+ int angle,
-+ int distance,
-+ int priority,
-+ unsigned long callbackval
-+ )
-+
-+ {
-+ int left;
-+ int right;
-+ int mid;
-+ int volume;
-+ int status;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ if ( distance < 0 )
-+ {
-+ distance = -distance;
-+ angle += MV_NumPanPositions / 2;
-+ }
-+
-+ volume = MIX_VOLUME( distance );
-+
-+ // Ensure angle is within 0 - 31
-+ angle &= MV_MaxPanPosition;
-+
-+ left = MV_PanTable[ angle ][ volume ].left;
-+ right = MV_PanTable[ angle ][ volume ].right;
-+ mid = max( 0, 255 - distance );
-+
-+ status = MV_PlayVOC( ptr, pitchoffset, mid, left, right, priority,
-+ callbackval );
-+
-+ return( status );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_PlayVOC
-+
-+ Begin playback of sound data with the given sound levels and
-+ priority.
-+---------------------------------------------------------------------*/
-+
-+int MV_PlayVOC
-+ (
-+ char *ptr,
-+ int pitchoffset,
-+ int vol,
-+ int left,
-+ int right,
-+ int priority,
-+ unsigned long callbackval
-+ )
-+
-+ {
-+ int status;
-+
-+ status = MV_PlayLoopedVOC( ptr, -1, -1, pitchoffset, vol, left, right,
-+ priority, callbackval );
-+
-+ return( status );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_PlayLoopedVOC
-+
-+ Begin playback of sound data with the given sound levels and
-+ priority.
-+---------------------------------------------------------------------*/
-+
-+int MV_PlayLoopedVOC
-+ (
-+ char *ptr,
-+ long loopstart,
-+ long loopend,
-+ int pitchoffset,
-+ int vol,
-+ int left,
-+ int right,
-+ int priority,
-+ unsigned long callbackval
-+ )
-+
-+ {
-+ VoiceNode *voice;
-+ int status;
-+ unsigned short nextpos;
-+
-+ if ( !MV_Installed )
-+ {
-+ MV_SetErrorCode( MV_NotInstalled );
-+ return( MV_Error );
-+ }
-+
-+ // Make sure it's a valid VOC file.
-+ status = strncmp( ptr, "Creative Voice File", 19 );
-+ if ( status != 0 )
-+ {
-+ MV_SetErrorCode( MV_InvalidVOCFile );
-+ return( MV_Error );
-+ }
-+
-+ // Request a voice from the voice pool
-+ voice = MV_AllocVoice( priority );
-+ if ( voice == NULL )
-+ {
-+ MV_SetErrorCode( MV_NoVoices );
-+ return( MV_Error );
-+ }
-+
-+ voice->wavetype = VOC;
-+ voice->bits = 8;
-+ voice->GetSound = MV_GetNextVOCBlock;
-+
-+ nextpos = *( unsigned short * )( ptr + 0x14 );
-+ voice->NextBlock = ptr + BUILDSWAP_INTEL16(nextpos);
-+
-+ voice->DemandFeed = NULL;
-+ voice->LoopStart = NULL;
-+ voice->LoopCount = 0;
-+ voice->BlockLength = 0;
-+ voice->PitchScale = PITCH_GetScale( pitchoffset );
-+ voice->length = 0;
-+ voice->next = NULL;
-+ voice->prev = NULL;
-+ voice->priority = priority;
-+ voice->callbackval = callbackval;
-+ voice->LoopStart = ( char * )loopstart;
-+ voice->LoopEnd = ( char * )loopend;
-+ voice->LoopSize = loopend - loopstart + 1;
-+
-+ if ( loopstart < 0 )
-+ {
-+ voice->LoopStart = NULL;
-+ voice->LoopEnd = NULL;
-+ }
-+
-+ MV_SetVoiceVolume( voice, vol, left, right );
-+ MV_PlayVoice( voice );
-+
-+ return( voice->handle );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_LockEnd
-+
-+ Used for determining the length of the functions to lock in memory.
-+---------------------------------------------------------------------*/
-+
-+static void MV_LockEnd
-+ (
-+ void
-+ )
-+
-+ {
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_CreateVolumeTable
-+
-+ Create the table used to convert sound data to a specific volume
-+ level.
-+---------------------------------------------------------------------*/
-+
-+void MV_CreateVolumeTable
-+ (
-+ int index,
-+ int volume,
-+ int MaxVolume
-+ )
-+
-+ {
-+ int val;
-+ int level;
-+ int i;
-+
-+ level = ( volume * MaxVolume ) / MV_MaxTotalVolume;
-+ if ( MV_Bits == 16 )
-+ {
-+ for( i = 0; i < 65536; i += 256 )
-+ {
-+ val = i - 0x8000;
-+ val *= level;
-+ val /= MV_MaxVolume;
-+ MV_VolumeTable[ index ][ i / 256 ] = val;
-+ }
-+ }
-+ else
-+ {
-+ for( i = 0; i < 256; i++ )
-+ {
-+ val = i - 0x80;
-+ val *= level;
-+ val /= MV_MaxVolume;
-+ MV_VolumeTable[ volume ][ i ] = val;
-+ }
-+ }
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_CalcVolume
-+
-+ Create the table used to convert sound data to a specific volume
-+ level.
-+---------------------------------------------------------------------*/
-+
-+void MV_CalcVolume
-+ (
-+ int MaxVolume
-+ )
-+
-+ {
-+ int volume;
-+
-+ for( volume = 0; volume < 128; volume++ )
-+ {
-+ MV_HarshClipTable[ volume ] = 0;
-+ MV_HarshClipTable[ volume + 384 ] = 255;
-+ }
-+ for( volume = 0; volume < 256; volume++ )
-+ {
-+ MV_HarshClipTable[ volume + 128 ] = volume;
-+ }
-+
-+ // For each volume level, create a translation table with the
-+ // appropriate volume calculated.
-+ for( volume = 0; volume <= MV_MaxVolume; volume++ )
-+ {
-+ MV_CreateVolumeTable( volume, volume, MaxVolume );
-+ }
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_CalcPanTable
-+
-+ Create the table used to determine the stereo volume level of
-+ a sound located at a specific angle and distance from the listener.
-+---------------------------------------------------------------------*/
-+
-+void MV_CalcPanTable
-+ (
-+ void
-+ )
-+
-+ {
-+ int level;
-+ int angle;
-+ int distance;
-+ int HalfAngle;
-+ int ramp;
-+
-+ HalfAngle = ( MV_NumPanPositions / 2 );
-+
-+ for( distance = 0; distance <= MV_MaxVolume; distance++ )
-+ {
-+ level = ( 255 * ( MV_MaxVolume - distance ) ) / MV_MaxVolume;
-+ for( angle = 0; angle <= HalfAngle / 2; angle++ )
-+ {
-+ ramp = level - ( ( level * angle ) /
-+ ( MV_NumPanPositions / 4 ) );
-+
-+ MV_PanTable[ angle ][ distance ].left = ramp;
-+ MV_PanTable[ HalfAngle - angle ][ distance ].left = ramp;
-+ MV_PanTable[ HalfAngle + angle ][ distance ].left = level;
-+ MV_PanTable[ MV_MaxPanPosition - angle ][ distance ].left = level;
-+
-+ MV_PanTable[ angle ][ distance ].right = level;
-+ MV_PanTable[ HalfAngle - angle ][ distance ].right = level;
-+ MV_PanTable[ HalfAngle + angle ][ distance ].right = ramp;
-+ MV_PanTable[ MV_MaxPanPosition - angle ][ distance ].right = ramp;
-+ }
-+ }
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetVolume
-+
-+ Sets the volume of digitized sound playback.
-+---------------------------------------------------------------------*/
-+
-+void MV_SetVolume
-+ (
-+ int volume
-+ )
-+
-+ {
-+ volume = max( 0, volume );
-+ volume = min( volume, MV_MaxTotalVolume );
-+
-+ MV_TotalVolume = volume;
-+
-+ // Calculate volume table
-+ MV_CalcVolume( volume );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_GetVolume
-+
-+ Returns the volume of digitized sound playback.
-+---------------------------------------------------------------------*/
-+
-+int MV_GetVolume
-+ (
-+ void
-+ )
-+
-+ {
-+ return( MV_TotalVolume );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetCallBack
-+
-+ Set the function to call when a voice stops.
-+---------------------------------------------------------------------*/
-+
-+void MV_SetCallBack
-+ (
-+ void ( *function )( unsigned long )
-+ )
-+
-+ {
-+ MV_CallBackFunc = function;
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_SetReverseStereo
-+
-+ Set the orientation of the left and right channels.
-+---------------------------------------------------------------------*/
-+
-+void MV_SetReverseStereo
-+ (
-+ int setting
-+ )
-+
-+ {
-+ MV_SwapLeftRight = setting;
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_GetReverseStereo
-+
-+ Returns the orientation of the left and right channels.
-+---------------------------------------------------------------------*/
-+
-+int MV_GetReverseStereo
-+ (
-+ void
-+ )
-+
-+ {
-+ return( MV_SwapLeftRight );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_TestPlayback
-+
-+ Checks if playback has started.
-+---------------------------------------------------------------------*/
-+
-+int MV_TestPlayback(void)
-+ {
-+ return MV_Ok;
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_Init
-+
-+ Perform the initialization of variables and memory used by
-+ Multivoc.
-+---------------------------------------------------------------------*/
-+
-+int MV_Init
-+ (
-+ int soundcard,
-+ int MixRate,
-+ int Voices,
-+ int numchannels,
-+ int samplebits
-+ )
-+
-+ {
-+ char *ptr;
-+ int status;
-+ int buffer;
-+ int index;
-+
-+ if ( MV_Installed )
-+ {
-+ MV_Shutdown();
-+ }
-+
-+ MV_SetErrorCode( MV_Ok );
-+
-+ MV_TotalMemory = Voices * sizeof( VoiceNode ) + sizeof( HARSH_CLIP_TABLE_8 );
-+ status = USRHOOKS_GetMem( ( void ** )&ptr, MV_TotalMemory );
-+ if ( status != USRHOOKS_Ok )
-+ {
-+ MV_SetErrorCode( MV_NoMem );
-+ return( MV_Error );
-+ }
-+
-+ MV_Voices = ( VoiceNode * )ptr;
-+ MV_HarshClipTable = ptr + ( MV_TotalMemory - sizeof( HARSH_CLIP_TABLE_8 ) );
-+
-+ // Set number of voices before calculating volume table
-+ MV_MaxVoices = Voices;
-+
-+ LL_Reset( (VoiceNode *)&VoiceList, next, prev );
-+ LL_Reset( (VoiceNode *)&VoicePool, next, prev );
-+
-+ for( index = 0; index < Voices; index++ )
-+ {
-+ LL_Add( (VoiceNode *)&VoicePool, &MV_Voices[ index ], next, prev );
-+ }
-+
-+ // Allocate mix buffer within 1st megabyte
-+ status = DPMI_GetDOSMemory( ( void ** )&ptr, &MV_BufferDescriptor,
-+ 2 * TotalBufferSize );
-+
-+ if ( status )
-+ {
-+ USRHOOKS_FreeMem( MV_Voices );
-+ MV_Voices = NULL;
-+ MV_TotalMemory = 0;
-+
-+ MV_SetErrorCode( MV_NoMem );
-+ return( MV_Error );
-+ }
-+
-+ MV_SetReverseStereo( FALSE );
-+
-+ // Initialize the sound card
-+ status = DSL_Init();
-+ if ( status != DSL_Ok )
-+ {
-+ MV_SetErrorCode( MV_BlasterError );
-+ }
-+
-+ if ( MV_ErrorCode != MV_Ok )
-+ {
-+ status = MV_ErrorCode;
-+
-+ USRHOOKS_FreeMem( MV_Voices );
-+ MV_Voices = NULL;
-+ MV_TotalMemory = 0;
-+
-+ DPMI_FreeDOSMemory( MV_BufferDescriptor );
-+
-+ MV_SetErrorCode( status );
-+ return( MV_Error );
-+ }
-+
-+ MV_SoundCard = soundcard;
-+ MV_Installed = TRUE;
-+ MV_CallBackFunc = NULL;
-+ MV_RecordFunc = NULL;
-+ MV_Recording = FALSE;
-+ MV_ReverbLevel = 0;
-+ MV_ReverbTable = NULL;
-+
-+ // Set the sampling rate
-+ MV_RequestedMixRate = MixRate;
-+
-+ // Set Mixer to play stereo digitized sound
-+ MV_SetMixMode( numchannels, samplebits );
-+ MV_ReverbDelay = MV_BufferSize * 3;
-+
-+ MV_MixBuffer[ MV_NumberOfBuffers ] = ptr;
-+ for( buffer = 0; buffer < MV_NumberOfBuffers; buffer++ )
-+ {
-+ MV_MixBuffer[ buffer ] = ptr;
-+ ptr += MV_BufferSize;
-+ }
-+
-+ // Calculate pan table
-+ MV_CalcPanTable();
-+
-+ MV_SetVolume( MV_MaxTotalVolume );
-+
-+ // Start the playback engine
-+ status = MV_StartPlayback();
-+ if ( status != MV_Ok )
-+ {
-+ // Preserve error code while we shutdown.
-+ status = MV_ErrorCode;
-+ MV_Shutdown();
-+ MV_SetErrorCode( status );
-+ return( MV_Error );
-+ }
-+
-+ if ( MV_TestPlayback() != MV_Ok )
-+ {
-+ status = MV_ErrorCode;
-+ MV_Shutdown();
-+ MV_SetErrorCode( status );
-+ return( MV_Error );
-+ }
-+
-+ return( MV_Ok );
-+ }
-+
-+
-+/*---------------------------------------------------------------------
-+ Function: MV_Shutdown
-+
-+ Restore any resources allocated by Multivoc back to the system.
-+---------------------------------------------------------------------*/
-+
-+int MV_Shutdown
-+ (
-+ void
-+ )
-+
-+ {
-+ int buffer;
-+ unsigned flags;
-+
-+ if ( !MV_Installed )
-+ {
-+ return( MV_Ok );
-+ }
-+
-+ flags = DisableInterrupts();
-+
-+ MV_KillAllVoices();
-+
-+ MV_Installed = FALSE;
-+
-+ // Stop the sound recording engine
-+ if ( MV_Recording )
-+ {
-+ MV_StopRecord();
-+ }
-+
-+ // Stop the sound playback engine
-+ MV_StopPlayback();
-+
-+ // Shutdown the sound card
-+ DSL_Shutdown();
-+
-+ RestoreInterrupts( flags );
-+
-+ // Free any voices we allocated
-+ USRHOOKS_FreeMem( MV_Voices );
-+ MV_Voices = NULL;
-+ MV_TotalMemory = 0;
-+
-+ LL_Reset( (VoiceNode *)&VoiceList, next, prev );
-+ LL_Reset( (VoiceNode *)&VoicePool, next, prev );
-+
-+ MV_MaxVoices = 1;
-+
-+ // Release the descriptor from our mix buffer
-+ DPMI_FreeDOSMemory( MV_BufferDescriptor );
-+ for( buffer = 0; buffer < NumberOfBuffers; buffer++ )
-+ {
-+ MV_MixBuffer[ buffer ] = NULL;
-+ }
-+
-+ return( MV_Ok );
-+ }
generated by cgit v1.2.3 (git 2.25.1) at 2025-09-08 21:44:02 +0000