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CVSTHost.cpp
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CVSTHost.cpp
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/*****************************************************************************/
/* CVSTHost.cpp: implementation of the CVSTHost class. */
/*****************************************************************************/
/******************************************************************************
Copyright (C) 2006 Hermann Seib
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
******************************************************************************/
#ifdef WIN32
#include <windows.h> /* Windows header files */
#elif MAC
#endif
#include <stdio.h> /* file I/O prototypes */
#include <math.h> /* math prototypes */
#include "CVSTHost.h" /* private prototypes */
/*****************************************************************************/
/* Global Data */
/*****************************************************************************/
const int MyVersion = 1; /* highest known VST FX version */
/*===========================================================================*/
/* CFxBase class members */
/*===========================================================================*/
static char szChnk[] = "CcnK"; /* set up swapping flag */
static long lChnk = 'CcnK';
bool CFxBase::NeedsBSwap = !!memcmp(szChnk, &lChnk, 4);
/*****************************************************************************/
/* SwapBytes : swaps bytes for big/little-endian difference */
/*****************************************************************************/
void CFxBase::SwapBytes(long &l)
{
unsigned char *b = (unsigned char *)&l;
long intermediate = ((long)b[0] << 24) |
((long)b[1] << 16) |
((long)b[2] << 8) |
(long)b[3];
l = intermediate;
}
void CFxBase::SwapBytes(float &f)
{
long *pl = (long *)&f;
SwapBytes(*pl);
}
void CFxBase::SwapBytes(VstInt32 &vi)
{
unsigned char *b = (unsigned char *)&vi;
VstInt32 intermediate = ((VstInt32)b[0] << 24) |
((VstInt32)b[1] << 16) |
((VstInt32)b[2] << 8) |
(VstInt32)b[3];
vi = intermediate;
}
/*===========================================================================*/
/* CFxBank class members */
/*===========================================================================*/
/*****************************************************************************/
/* CFxBank : constructor */
/*****************************************************************************/
CFxBank::CFxBank(char *pszFile)
{
Init(); /* initialize data areas */
if (pszFile) /* if a file name has been passed */
LoadBank(pszFile); /* load the corresponding bank */
}
CFxBank::CFxBank(int nPrograms, int nParams)
{
Init(); /* initialize data areas */
SetSize(nPrograms, nParams); /* set new size */
}
CFxBank::CFxBank(int nChunkSize)
{
Init(); /* initialize data areas */
SetSize(nChunkSize); /* set new size */
}
/*****************************************************************************/
/* Init : initializes all data areas */
/*****************************************************************************/
void CFxBank::Init()
{
bBank = NULL; /* no bank data loaded */
Unload(); /* reset all parameters */
}
/*****************************************************************************/
/* ~CFxBank : destructor */
/*****************************************************************************/
CFxBank::~CFxBank()
{
Unload(); /* unload all data */
}
/*****************************************************************************/
/* DoCopy : combined for copy constructor and assignment operator */
/*****************************************************************************/
CFxBank & CFxBank::DoCopy(const CFxBank &org)
{
unsigned char *nBank = NULL;
if (org.nBankLen)
{
unsigned char *nBank = new unsigned char[org.nBankLen];
if (!nBank)
throw(int)1;
memcpy(nBank, org.bBank, org.nBankLen);
}
Unload(); /* remove previous data */
bBank = nBank; /* and copy in the other one's */
bChunk = org.bChunk;
nBankLen = org.nBankLen;
strcpy(szFileName, org.szFileName);
return *this;
}
/*****************************************************************************/
/* SetSize : sets new size */
/*****************************************************************************/
bool CFxBank::SetSize(int nPrograms, int nParams)
{
int nTotLen = sizeof(SFxBankBase);
int nProgLen = sizeof(SFxProgramBase) + nParams * sizeof(float);
nTotLen += nPrograms * nProgLen;
unsigned char *nBank = new unsigned char[nTotLen];
if (!nBank)
return false;
Unload();
bBank = nBank;
nBankLen = nTotLen;
bChunk = false;
memset(nBank, 0, nTotLen); /* initialize new bank */
SFxBank *pBank = (SFxBank *)bBank;
pBank->chunkMagic = cMagic;
pBank->byteSize = 0;
pBank->fxMagic = bankMagic;
pBank->version = MyVersion;
pBank->numPrograms = nPrograms;
unsigned char *bProg = (unsigned char *)pBank->programs;
for (int i = 0; i < nPrograms; i++)
{
SFxProgram * pProg = (SFxProgram *)(bProg + i * nProgLen);
pProg->chunkMagic = cMagic;
pProg->byteSize = 0;
pProg->fxMagic = fMagic;
pProg->version = 1;
pProg->numParams = nParams;
for (int j = 0; j < nParams; j++)
pProg->params[j] = 0.f;
}
return true;
}
bool CFxBank::SetSize(int nChunkSize)
{
int nTotLen = ((int)((SFxBankChunk *)0)->chunk) + nChunkSize;
unsigned char *nBank = new unsigned char[nTotLen];
if (!nBank)
return false;
Unload();
bBank = nBank;
nBankLen = nTotLen;
bChunk = true;
memset(nBank, 0, nTotLen); /* initialize new bank */
SFxBankChunk *pBank = (SFxBankChunk *)bBank;
pBank->chunkMagic = cMagic;
pBank->fxMagic = chunkBankMagic;
pBank->version = MyVersion;
pBank->numPrograms = 1;
pBank->size = nChunkSize;
return true;
}
/*****************************************************************************/
/* LoadBank : loads a bank file */
/*****************************************************************************/
bool CFxBank::LoadBank(char *pszFile)
{
FILE *fp = fopen(pszFile, "rb"); /* try to open the file */
if (!fp) /* upon error */
return false; /* return an error */
bool brc = true; /* default to OK */
unsigned char *nBank = NULL;
try
{
fseek(fp, 0, SEEK_END); /* get file size */
size_t tLen = (size_t)ftell(fp);
rewind(fp);
nBank = new unsigned char[tLen]; /* allocate storage */
if (!nBank)
throw (int)1;
/* read chunk set to determine cnt. */
if (fread(nBank, 1, tLen, fp) != tLen)
throw (int)1;
/* position on bank */
SFxBankBase *pBank = (SFxBankBase *)nBank;
if (NeedsBSwap) /* eventually swap necessary bytes */
{
SwapBytes(pBank->chunkMagic);
SwapBytes(pBank->byteSize);
SwapBytes(pBank->fxMagic);
SwapBytes(pBank->version);
SwapBytes(pBank->fxID);
SwapBytes(pBank->fxVersion);
SwapBytes(pBank->numPrograms);
}
if ((pBank->chunkMagic != cMagic) || /* if erroneous data in there */
(pBank->version > MyVersion) ||
((pBank->fxMagic != bankMagic) &&
(pBank->fxMagic != chunkBankMagic)))
throw (int)1; /* get out */
if (pBank->fxMagic == bankMagic) /* if this is a bank of parameters */
{
/* position on 1st program */
SFxProgram * pProg = ((SFxBank *)pBank)->programs;
int nProg = 0;
while (nProg < pBank->numPrograms) /* walk program list */
{
if (NeedsBSwap) /* eventually swap necessary bytes */
{
SwapBytes(pProg->chunkMagic);
SwapBytes(pProg->byteSize);
SwapBytes(pProg->fxMagic);
SwapBytes(pProg->version);
SwapBytes(pProg->fxID);
SwapBytes(pProg->fxVersion);
SwapBytes(pProg->numParams);
}
/* if erroneous data */
if ((pProg->chunkMagic != cMagic)||
(pProg->fxMagic != fMagic))
throw (int)1; /* get out */
if (NeedsBSwap) /* if necessary */
{ /* swap all parameter bytes */
int j;
for (j = 0; j < pProg->numParams; j++)
SwapBytes(pProg->params[j]);
}
unsigned char *pNext = (unsigned char *)pProg;
pNext += sizeof(SFxProgramBase);
pNext += (sizeof(float) * pProg->numParams);
if (pNext > nBank + tLen) /* VERY simple fuse */
throw (int)1;
pProg = (SFxProgram *)pNext;
nProg++;
}
}
/* if it's a chunk file */
else if (pBank->fxMagic == chunkBankMagic)
{
if (NeedsBSwap) /* eventually swap necessary bytes */
{
SFxBankChunk *pChunk = (SFxBankChunk *)pBank;
SwapBytes(pChunk->size);
/* size check - must not be too large*/
if (pChunk->size + ((size_t)((SFxBankChunk *)0)->chunk) > tLen)
throw (int)1;
}
}
Unload(); /* otherwise remove eventual old data*/
bBank = nBank; /* and put in new data */
nBankLen = (int)tLen;
bChunk = (pBank->fxMagic == chunkBankMagic);
}
catch(...)
{
brc = false; /* if any error occured, say NOPE */
if (nBank) /* and remove loaded data */
delete[] nBank;
}
fclose(fp); /* close the file */
return brc; /* and return */
}
/*****************************************************************************/
/* SaveBank : save bank to file */
/*****************************************************************************/
bool CFxBank::SaveBank(char *pszFile)
{
if (!IsLoaded())
return false;
/* create internal copy for mod */
unsigned char *nBank = new unsigned char[nBankLen];
if (!nBank) /* if impossible */
return false;
memcpy(nBank, bBank, nBankLen);
/* position on bank */
SFxBankBase *pBank = (SFxBankBase *)nBank;
int numPrograms = pBank->numPrograms;
if (NeedsBSwap) /* if byte-swapping needed */
{
SwapBytes(pBank->chunkMagic);
SwapBytes(pBank->byteSize);
SwapBytes(pBank->fxMagic);
SwapBytes(pBank->version);
SwapBytes(pBank->fxID);
SwapBytes(pBank->fxVersion);
SwapBytes(pBank->numPrograms);
}
if (bChunk)
{
if (NeedsBSwap) /* if byte-swapping needed */
SwapBytes(((SFxBankChunk *)pBank)->size);
}
else
{
/* position on 1st program */
SFxProgram * pProg = ((SFxBank *)pBank)->programs;
int numParams = pProg->numParams;
int nProg = 0;
while (nProg < numPrograms) /* walk program list */
{
if (NeedsBSwap) /* eventually swap all necessary */
{
SwapBytes(pProg->chunkMagic);
SwapBytes(pProg->byteSize);
SwapBytes(pProg->fxMagic);
SwapBytes(pProg->version);
SwapBytes(pProg->fxID);
SwapBytes(pProg->fxVersion);
SwapBytes(pProg->numParams);
for (int j = 0; j < numParams; j++)
SwapBytes(pProg->params[j]);
}
unsigned char *pNext = (unsigned char *)pProg;
pNext += sizeof(SFxProgramBase);
pNext += (sizeof(float) * numParams);
if (pNext > nBank + nBankLen) /* VERY simple fuse */
break;
pProg = (SFxProgram *)pNext;
nProg++;
}
}
bool brc = true; /* default to OK */
FILE *fp = NULL;
try
{
fp = fopen(pszFile, "wb"); /* try to open the file */
if (!fp) /* upon error */
throw (int)1; /* return an error */
if (fwrite(nBank, 1, nBankLen, fp) != (size_t)nBankLen)
throw (int)1;
}
catch(...)
{
brc = false;
}
if (fp)
fclose(fp);
delete[] nBank;
return brc;
}
/*****************************************************************************/
/* Unload : removes a loaded bank from memory */
/*****************************************************************************/
void CFxBank::Unload()
{
if (bBank)
delete[] bBank;
*szFileName = '\0'; /* reset file name */
bBank = NULL; /* reset bank pointer */
nBankLen = 0; /* reset bank length */
bChunk = false; /* and of course it's no chunk. */
}
/*****************************************************************************/
/* GetProgram : returns pointer to one of the loaded programs */
/*****************************************************************************/
SFxProgram * CFxBank::GetProgram(int nProgNum)
{
if ((!IsLoaded()) || (bChunk)) /* if nothing loaded or chunk file */
return NULL; /* return OUCH */
SFxBank *pBank = (SFxBank *)bBank; /* position on 1st program */
SFxProgram * pProg = pBank->programs;
int nProgLen = sizeof(SFxProgramBase) +
pProg->numParams * sizeof(float);
unsigned char *pThatProg = ((unsigned char *)pProg) + (nProgNum * nProgLen);
pProg = (SFxProgram *)pThatProg;
return pProg;
}
/*===========================================================================*/
/* CEffect class members */
/*===========================================================================*/
/*****************************************************************************/
/* CEffect : constructor */
/*****************************************************************************/
CEffect::CEffect(CVSTHost *pHost)
{
this->pHost = pHost;
pEffect = NULL;
sName = NULL;
bEditOpen = false;
bNeedIdle = false;
bInEditIdle = false;
bWantMidi = false;
bInSetProgram = false;
nIndex = -1;
nUniqueId = 0;
pMasterEffect = NULL;
#ifdef WIN32
hModule = NULL;
sDir = NULL;
#elif MAC
// yet to be done
#endif
}
/*****************************************************************************/
/* ~CEffect : destructor */
/*****************************************************************************/
CEffect::~CEffect()
{
Unload();
#ifdef WIN32
#elif MAC
#endif
}
/*****************************************************************************/
/* Load : loads the effect module */
/*****************************************************************************/
bool CEffect::Load(const char *name)
{
if (!pHost) /* if VST Host undefined */
return false; /* return without action */
#ifdef WIN32
#elif MAC
#endif
Unload(); /* make sure nothing else is loaded */
/* pointer to main function */
AEffect *(*pMain)(long (*audioMaster)(AEffect *effect,
long opcode,
long index,
long value,
void *ptr,
float opt)) = 0;
#ifdef WIN32
//__try
try
{
hModule = ::LoadLibrary(name); /* try to load the DLL */
}
//__except(EXCEPTION_EXECUTE_HANDLER)
catch(...)
{
hModule = NULL;
}
if (hModule) /* if there, get its main() function */
{
pMain = (AEffect * (*)(long (*)(AEffect *,long,long,long,void *,float)))
::GetProcAddress(hModule, "VSTPluginMain");
if (!pMain)
pMain = (AEffect * (*)(long (*)(AEffect *,long,long,long,void *,float)))
::GetProcAddress(hModule, "main");
}
if (pMain) /* initialize effect */
{
// __try
try
{
pEffect = pMain(pHost->AudioMasterCallback);
}
// __except(EXCEPTION_EXECUTE_HANDLER)
catch(...)
{
pEffect = NULL;
}
}
#elif MAC
// yet to be done
if (pMain) /* initialize effect */
pEffect = pMain(pHost->AudioMasterCallback);
#endif
/* check for correctness */
if (pEffect && (pEffect->magic != kEffectMagic))
pEffect = NULL;
if (pEffect)
{
sName = new char[strlen(name) + 1];
if (sName)
strcpy(sName, name);
#ifdef WIN32
const char *p = strrchr(name, '\\');
if (p)
{
sDir = new char[p - name + 1];
if (sDir)
{
memcpy(sDir, name, p - name);
sDir[p - name] = '\0';
}
}
#elif MAC
// yet to be done
#endif
}
#ifdef WIN32
#elif MAC
#endif
return !!pEffect;
}
/*****************************************************************************/
/* Unload : unloads effect module */
/*****************************************************************************/
bool CEffect::Unload()
{
if (!pHost) /* if no VST Host there */
return false;
EffClose(); /* make sure it's closed */
pEffect = NULL; /* and reset the pointer */
#ifdef WIN32
if (hModule) /* if DLL instance available */
{
::FreeLibrary(hModule); /* remove it. */
hModule = NULL; /* and reset the handle */
}
if (sDir) /* reset module directory */
{
delete[] sDir;
sDir = NULL;
}
#elif MAC
// yet to be done!
#endif
if (sName) /* reset module name */
{
delete[] sName;
sName = NULL;
}
return true;
}
/*****************************************************************************/
/* LoadBank : loads a .fxb file ... IF it's for this effect */
/*****************************************************************************/
bool CEffect::LoadBank(char *name)
{
try
{
CFxBank fx(name); /* load the bank */
if (!fx.IsLoaded()) /* if error loading */
throw (int)1;
}
catch(...) /* if any error occured */
{
return false; /* return NOT!!! */
}
return true; /* pass back OK */
}
/*****************************************************************************/
/* SaveBank : saves current sound bank to a .fxb file */
/*****************************************************************************/
bool CEffect::SaveBank(char *name)
{
return false; /* return error for now */
}
/*****************************************************************************/
/* OnGetDirectory : returns the plug's directory (char* on pc, FSSpec on mac)*/
/*****************************************************************************/
void * CEffect::OnGetDirectory()
{
#ifdef WIN32
return sDir;
#elif MAC
// yet to be done
#endif
}
/*****************************************************************************/
/* EffDispatch : calls an effect's dispatcher */
/*****************************************************************************/
long CEffect::EffDispatch
(
long opCode,
long index,
long value,
void *ptr,
float opt
)
{
if (!pEffect)
return 0;
return pEffect->dispatcher(pEffect, opCode, index, value, ptr, opt);
}
/*****************************************************************************/
/* EffProcess : calles an effect's process() function */
/*****************************************************************************/
void CEffect::EffProcess(float **inputs, float **outputs, long sampleframes)
{
if (!pEffect)
return;
pEffect->process(pEffect, inputs, outputs, sampleframes);
}
/*****************************************************************************/
/* EffProcessReplacing : calls an effect's processReplacing() function */
/*****************************************************************************/
void CEffect::EffProcessReplacing(float **inputs, float **outputs, long sampleframes)
{
if ((!pEffect) ||
(!(pEffect->flags & effFlagsCanReplacing)))
return;
pEffect->processReplacing(pEffect, inputs, outputs, sampleframes);
}
/*****************************************************************************/
/* EffProcessDoubleReplacing : calls an effect's processDoubleReplacing() f. */
/*****************************************************************************/
void CEffect::EffProcessDoubleReplacing(double **inputs, double **outputs, long sampleFrames)
{
if ((!pEffect) ||
(!(pEffect->flags & effFlagsCanDoubleReplacing)))
return;
#if defined(VST_2_4_EXTENSIONS)
pEffect->processDoubleReplacing(pEffect, inputs, outputs, sampleFrames);
#endif
}
/*****************************************************************************/
/* EffSetParameter : calls an effect's setParameter() function */
/*****************************************************************************/
void CEffect::EffSetParameter(long index, float parameter)
{
if (!pEffect)
return;
pEffect->setParameter(pEffect, index, parameter);
}
/*****************************************************************************/
/* EffGetParameter : calls an effect's getParameter() function */
/*****************************************************************************/
float CEffect::EffGetParameter(long index)
{
if (!pEffect)
return 0.;
float frc = pEffect->getParameter(pEffect, index);
return frc;
}
/*===========================================================================*/
/* CVSTHost class members */
/*===========================================================================*/
CVSTHost * CVSTHost::pHost = NULL; /* pointer to the one and only host */
/*****************************************************************************/
/* CVSTHost : constructor */
/*****************************************************************************/
CVSTHost::CVSTHost()
{
if (pHost) /* disallow more than one host! */
throw((int)1);
fSampleRate = 44100.; /* initialize to sensible values */
lBlockSize = 1024;
vstTimeInfo.samplePos = 0.0;
vstTimeInfo.sampleRate = fSampleRate;
vstTimeInfo.nanoSeconds = 0.0;
vstTimeInfo.ppqPos = 0.0;
vstTimeInfo.tempo = 120.0;
vstTimeInfo.barStartPos = 0.0;
vstTimeInfo.cycleStartPos = 0.0;
vstTimeInfo.cycleEndPos = 0.0;
vstTimeInfo.timeSigNumerator = 4;
vstTimeInfo.timeSigDenominator = 4;
vstTimeInfo.smpteOffset = 0;
vstTimeInfo.smpteFrameRate = 1;
vstTimeInfo.samplesToNextClock = 0;
vstTimeInfo.flags = 0;
aEffects = 0; /* no effects loaded */
naEffects = nmaEffects = 0;
pLoading = NULL;
pHost = this; /* install this instance as the one */
}
/*****************************************************************************/
/* ~CVSTHost : destructor */
/*****************************************************************************/
CVSTHost::~CVSTHost()
{
RemoveAll(); /* remove all loaded effects */
if (aEffects) /* if effects pointer array there */
delete[] aEffects; /* delete it */
if (pHost == this) /* if we're the chosen one */
pHost = NULL; /* remove ourselves from pointer */
}
/*****************************************************************************/
/* CalcTimeInfo : calculates time info from nanoSeconds */
/*****************************************************************************/
void CVSTHost::CalcTimeInfo(long lMask)
{
// we don't care for the mask in here
static double fSmpteDiv[] =
{
24.f,
25.f,
24.f,
30.f,
29.97f,
30.f
};
double dPos = vstTimeInfo.samplePos / vstTimeInfo.sampleRate;
vstTimeInfo.ppqPos = dPos * vstTimeInfo.tempo / 60.L;
/* offset in fractions of a second */
double dOffsetInSecond = dPos - floor(dPos);
vstTimeInfo.smpteOffset = (long)(dOffsetInSecond *
fSmpteDiv[vstTimeInfo.smpteFrameRate] *
80.L);
}
/*****************************************************************************/
/* AudioMasterCallback : callback to be called by plugins */
/*****************************************************************************/
long VSTCALLBACK CVSTHost::AudioMasterCallback
(
AEffect *effect,
long opcode,
long index,
long value,
void *ptr,
float opt
)
{
if (!pHost)
return 0;
return pHost->OnAudioMasterCallback(pHost->Search(effect),
opcode,
index,
value,
ptr,
opt);
}
/*****************************************************************************/
/* OnAudioMasterCallback : callback dispatcher */
/*****************************************************************************/
long CVSTHost::OnAudioMasterCallback
(
int nEffect,
long opcode,
long index,
long value,
void *ptr,
float opt
)
{
switch (opcode)
{
case audioMasterAutomate :
return OnSetParameterAutomated(nEffect, index, opt);
case audioMasterVersion :
return OnGetVersion(nEffect);
case audioMasterCurrentId :
return OnGetCurrentUniqueId(nEffect);
case audioMasterIdle :
return OnIdle(nEffect);
case audioMasterPinConnected :
return !((value) ?
OnOutputConnected(nEffect, index) :
OnInputConnected(nEffect, index));
/* VST 2.0 additions... */
case audioMasterWantMidi :
return OnWantEvents(nEffect, value);
case audioMasterGetTime :
return (long)OnGetTime(nEffect, value);
case audioMasterProcessEvents :
return OnProcessEvents(nEffect, (VstEvents *)ptr);
case audioMasterSetTime :
return OnSetTime(nEffect, value, (VstTimeInfo *)ptr);
case audioMasterTempoAt :
return OnTempoAt(nEffect, value);
case audioMasterGetNumAutomatableParameters :
return OnGetNumAutomatableParameters(nEffect);
case audioMasterGetParameterQuantization :
return OnGetParameterQuantization(nEffect);
case audioMasterIOChanged :
return OnIoChanged(nEffect);
case audioMasterNeedIdle :
return OnNeedIdle(nEffect);
case audioMasterSizeWindow :
return OnSizeWindow(nEffect, index, value);
case audioMasterGetSampleRate :
return OnUpdateSampleRate(nEffect);
case audioMasterGetBlockSize :
return OnUpdateBlockSize(nEffect);
case audioMasterGetInputLatency :
return OnGetInputLatency(nEffect);
case audioMasterGetOutputLatency :
return OnGetOutputLatency(nEffect);
case audioMasterGetPreviousPlug :
return GetPreviousPlugIn(nEffect);
case audioMasterGetNextPlug :
return GetNextPlugIn(nEffect);
case audioMasterWillReplaceOrAccumulate :
return OnWillProcessReplacing(nEffect);
case audioMasterGetCurrentProcessLevel :
return OnGetCurrentProcessLevel(nEffect);
case audioMasterGetAutomationState :
return OnGetAutomationState(nEffect);
case audioMasterOfflineStart :
return OnOfflineStart(nEffect,
(VstAudioFile *)ptr,
value,
index);
break;
case audioMasterOfflineRead :
return OnOfflineRead(nEffect,
(VstOfflineTask *)ptr,
(VstOfflineOption)value,
!!index);
break;
case audioMasterOfflineWrite :
return OnOfflineWrite(nEffect,
(VstOfflineTask *)ptr,
(VstOfflineOption)value);
break;
case audioMasterOfflineGetCurrentPass :
return OnOfflineGetCurrentPass(nEffect);
case audioMasterOfflineGetCurrentMetaPass :
return OnOfflineGetCurrentMetaPass(nEffect);
case audioMasterSetOutputSampleRate :
OnSetOutputSampleRate(nEffect, opt);
return 1;
#ifdef VST_2_3_EXTENSIONS
case audioMasterGetOutputSpeakerArrangement :
#if 0
// this is VST SDK 2.0 style - unfortunately, Steinberg chose to REDEFINE
// this opcode in later versions. This class only supports the NEW variant,
// which is much better anyway.
return OnGetOutputSpeakerArrangement(nEffect,
(VstSpeakerArrangement *)value,
(VstSpeakerArrangement *)ptr);
#else
// CVSTHost doesn't support the old style, so only newer PlugIns are allowed.
if (EffDispatch(nEffect, effGetVstVersion) >= 2300)
return (long)OnGetOutputSpeakerArrangement(nEffect);
else
return 0;
#endif
#else
case audioMasterGetSpeakerArrangement :
// see above comment
return 0;
#endif
case audioMasterGetVendorString :
return OnGetVendorString((char *)ptr);
case audioMasterGetProductString :
return OnGetProductString((char *)ptr);
case audioMasterGetVendorVersion :
return OnGetHostVendorVersion();
case audioMasterVendorSpecific :
return OnHostVendorSpecific(nEffect, index, value, ptr, opt);
case audioMasterSetIcon :
// undefined in VST 2.0 specification
break;
case audioMasterCanDo :
return OnCanDo((const char *)ptr);
case audioMasterGetLanguage :
return OnGetHostLanguage();
case audioMasterOpenWindow :
return (long)OnOpenWindow(nEffect, (VstWindow *)ptr);
case audioMasterCloseWindow :
return OnCloseWindow(nEffect, (VstWindow *)ptr);
case audioMasterGetDirectory :
return (long)OnGetDirectory(nEffect);
case audioMasterUpdateDisplay :