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vst2wrapper.cpp
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//------------------------------------------------------------------------
// Project : VST SDK
//
// Category : Helpers
// Filename : public.sdk/source/vst/vst2wrapper/vst2wrapper.cpp
// Created by : Steinberg, 01/2009
// Description : VST 3 -> VST 2 Wrapper
//
//-----------------------------------------------------------------------------
// LICENSE
// (c) 2019, Steinberg Media Technologies GmbH, All Rights Reserved
//-----------------------------------------------------------------------------
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Steinberg Media Technologies nor the names of its
// contributors may be used to endorse or promote products derived from this
// software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//-----------------------------------------------------------------------------
/// \cond ignore
#include "vst2wrapper.h"
#include "pluginterfaces/base/futils.h"
#include "pluginterfaces/base/keycodes.h"
#include "pluginterfaces/gui/iplugview.h"
#include "pluginterfaces/vst/ivstmessage.h"
#include "pluginterfaces/vst/ivstmidicontrollers.h"
#include "pluginterfaces/vst/vstpresetkeys.h"
#include "public.sdk/source/vst/hosting/hostclasses.h"
#include "base/source/fstreamer.h"
#include <cstdio>
#include <cstdlib>
#include <limits>
extern bool DeinitModule(); //! Called in Vst2Wrapper destructor
//------------------------------------------------------------------------
// some Defines
//------------------------------------------------------------------------
// should be kVstMaxParamStrLen if we want to respect the VST 2 specification!!!
#define kVstExtMaxParamStrLen 32
//------------------------------------------------------------------------
namespace Steinberg {
namespace Vst {
//! The parameter's name contains the unit path (e.g.
//! "Modulators.LFO 1.frequency")
// bool vst2WrapperFullParameterPath = true;
bool vst2WrapperFullParameterPath = false;
//------------------------------------------------------------------------
// Vst2EditorWrapper Declaration
//------------------------------------------------------------------------
class Vst2EditorWrapper : public BaseEditorWrapper {
public:
//------------------------------------------------------------------------
Vst2EditorWrapper(IEditController *controller,
audioMasterCallback audioMaster, AEffect *plugin);
//--- from BaseEditorWrapper ---------------------
void _close();
//--- from AEffEditor-------------------
bool getRect(ERect **rect);
bool open(void *ptr);
void close() { _close(); }
bool setKnobMode(VstInt32 val) {
return BaseEditorWrapper::_setKnobMode(static_cast<Vst::KnobMode>(val));
}
//--- IPlugFrame ----------------------------
tresult PLUGIN_API resizeView(IPlugView *view, ViewRect *newSize);
audioMasterCallback audioMaster3;
AEffect plugin3;
//------------------------------------------------------------------------
protected:
ERect mERect;
};
//------------------------------------------------------------------------
bool areSizeEquals(const ViewRect &r1, const ViewRect &r2) {
if (r1.getHeight() != r2.getHeight())
return false;
if (r1.getWidth() != r2.getWidth())
return false;
return true;
}
#pragma GCC optimize("O0")
//------------------------------------------------------------------------
// Vst2EditorWrapper Implementation
//------------------------------------------------------------------------
Vst2EditorWrapper::Vst2EditorWrapper(IEditController *controller,
audioMasterCallback audioMaster,
AEffect *plugin)
: BaseEditorWrapper(controller) {
audioMaster3 = audioMaster;
memcpy(&plugin3, plugin, sizeof(AEffect));
}
//------------------------------------------------------------------------
tresult PLUGIN_API Vst2EditorWrapper::resizeView(IPlugView *view,
ViewRect *newSize) {
BaseEditorWrapper::resizeView(view, newSize);
if (audioMaster3)
audioMaster3(&plugin3, audioMasterSizeWindow, newSize->getWidth(),
newSize->getHeight(), 0, 0);
}
//------------------------------------------------------------------------
bool Vst2EditorWrapper::getRect(ERect **rect) {
ViewRect size;
if (BaseEditorWrapper::getRect(size)) {
mERect.left = (VstInt16)size.left;
mERect.top = (VstInt16)size.top;
mERect.right = (VstInt16)size.right;
mERect.bottom = (VstInt16)size.bottom;
*rect = &mERect;
return true;
}
*rect = nullptr;
return false;
}
//------------------------------------------------------------------------
bool Vst2EditorWrapper::open(void *ptr) {
return BaseEditorWrapper::_open(ptr);
}
//------------------------------------------------------------------------
void Vst2EditorWrapper::_close() { BaseEditorWrapper::_close(); }
#pragma GCC optimize("O2")
//------------------------------------------------------------------------
// Vst2MidiEventQueue Declaration
//------------------------------------------------------------------------
class Vst2MidiEventQueue {
public:
//------------------------------------------------------------------------
Vst2MidiEventQueue(int32 maxEventCount);
~Vst2MidiEventQueue();
bool isEmpty() const { return eventList->numEvents == 0; }
bool add(const VstMidiEvent &e);
void flush();
operator VstEvents *() { return eventList; }
//------------------------------------------------------------------------
protected:
VstEvents *eventList;
int32 maxEventCount;
};
//------------------------------------------------------------------------
// Vst2MidiEventQueue Implementation
//------------------------------------------------------------------------
Vst2MidiEventQueue::Vst2MidiEventQueue(int32 _maxEventCount)
: maxEventCount(_maxEventCount) {
eventList = (VstEvents *)new char[sizeof(VstEvents) +
(maxEventCount - 2) * sizeof(VstEvent *)];
eventList->numEvents = 0;
eventList->reserved = 0;
int32 eventSize = sizeof(VstMidiEvent);
for (int32 i = 0; i < maxEventCount; i++) {
char *eventBuffer = new char[eventSize];
memset(eventBuffer, 0, eventSize);
eventList->events[i] = (VstEvent *)eventBuffer;
}
}
//------------------------------------------------------------------------
Vst2MidiEventQueue::~Vst2MidiEventQueue() {
for (int32 i = 0; i < maxEventCount; i++)
delete[](char *) eventList->events[i];
delete[](char *) eventList;
}
//------------------------------------------------------------------------
bool Vst2MidiEventQueue::add(const VstMidiEvent &e) {
if (eventList->numEvents >= maxEventCount)
return false;
auto *dst = (VstMidiEvent *)eventList->events[eventList->numEvents++];
memcpy(dst, &e, sizeof(VstMidiEvent));
dst->type = kVstMidiType;
dst->byteSize = sizeof(VstMidiEvent);
return true;
}
//------------------------------------------------------------------------
void Vst2MidiEventQueue::flush() { eventList->numEvents = 0; }
//------------------------------------------------------------------------
// Vst2Wrapper
//------------------------------------------------------------------------
Vst2Wrapper::Vst2Wrapper(BaseWrapper::SVST3Config &config,
audioMasterCallback audioMaster2, VstInt32 vst2ID,
intptr_t remoteptr)
: BaseWrapper(config), editor(0), curProgram(0), initialdelay(0),
doublereplacing(false), numinputs(0), numoutputs(0), numparams(0),
numprograms(0), synth(false) {
mUseExportedBypass = false;
mUseIncIndex = true;
audioMaster = audioMaster2;
plugin.resvd2 = remoteptr;
// setUniqueID (vst2ID);
// canProcessReplacing (true); // supports replacing output
// programsAreChunks (true);
}
//------------------------------------------------------------------------
Vst2Wrapper::~Vst2Wrapper() {
//! editor needs to be destroyed BEFORE DeinitModule. Therefore destroy it
//! here already
// instead of AudioEffect destructor
if (mEditor) {
mEditor = nullptr;
}
delete mVst2OutputEvents;
mVst2OutputEvents = nullptr;
}
//------------------------------------------------------------------------
bool Vst2Wrapper::init(audioMasterCallback audioMaster, AEffect *plugin) {
// if (strstr (mSubCategories, "Instrument"))
// synth = true;
// isSynth (true);
bool res = BaseWrapper::init();
numprograms = mNumPrograms;
if (mController) {
if (BaseEditorWrapper::hasEditor(mController)) {
editor = new Vst2EditorWrapper(mController, audioMaster, plugin);
if (editor)
_setEditor(editor);
}
}
return res;
}
//------------------------------------------------------------------------
void Vst2Wrapper::_canDoubleReplacing(bool val) {
// canDoubleReplacing (val);
doublereplacing = val;
}
//------------------------------------------------------------------------
void Vst2Wrapper::_setInitialDelay(int32 delay) {
// setInitialDelay (delay);
initialdelay = delay;
}
//------------------------------------------------------------------------
void Vst2Wrapper::_noTail(bool val) {
// noTail (val);
}
//------------------------------------------------------------------------
void Vst2Wrapper::setupBuses() {
BaseWrapper::setupBuses();
if (mHasEventOutputBuses) {
if (mVst2OutputEvents == nullptr)
mVst2OutputEvents = new Vst2MidiEventQueue(kMaxEvents);
} else {
if (mVst2OutputEvents) {
delete mVst2OutputEvents;
mVst2OutputEvents = nullptr;
}
}
}
//------------------------------------------------------------------------
void Vst2Wrapper::setupProcessTimeInfo() {
VstTimeInfo *vst2timeInfo;
vst2timeInfo = nullptr;
if (audioMaster)
vst2timeInfo =
(VstTimeInfo *)audioMaster(&plugin, audioMasterGetTime, 0, 0, 0, 0);
if (vst2timeInfo) {
const uint32 portableFlags =
ProcessContext::kPlaying | ProcessContext::kCycleActive |
ProcessContext::kRecording | ProcessContext::kSystemTimeValid |
ProcessContext::kProjectTimeMusicValid |
ProcessContext::kBarPositionValid | ProcessContext::kCycleValid |
ProcessContext::kTempoValid | ProcessContext::kTimeSigValid |
ProcessContext::kSmpteValid | ProcessContext::kClockValid;
mProcessContext.state = ((uint32)vst2timeInfo->flags) & portableFlags;
mProcessContext.sampleRate = vst2timeInfo->sampleRate;
mProcessContext.projectTimeSamples = (TSamples)vst2timeInfo->samplePos;
if (mProcessContext.state & ProcessContext::kSystemTimeValid)
mProcessContext.systemTime = (TSamples)vst2timeInfo->nanoSeconds;
else
mProcessContext.systemTime = 0;
if (mProcessContext.state & ProcessContext::kProjectTimeMusicValid)
mProcessContext.projectTimeMusic = vst2timeInfo->ppqPos;
else
mProcessContext.projectTimeMusic = 0;
if (mProcessContext.state & ProcessContext::kBarPositionValid)
mProcessContext.barPositionMusic = vst2timeInfo->barStartPos;
else
mProcessContext.barPositionMusic = 0;
if (mProcessContext.state & ProcessContext::kCycleValid) {
mProcessContext.cycleStartMusic = vst2timeInfo->cycleStartPos;
mProcessContext.cycleEndMusic = vst2timeInfo->cycleEndPos;
} else
mProcessContext.cycleStartMusic = mProcessContext.cycleEndMusic = 0.0;
if (mProcessContext.state & ProcessContext::kTempoValid)
mProcessContext.tempo = vst2timeInfo->tempo;
else
mProcessContext.tempo = 120.0;
if (mProcessContext.state & ProcessContext::kTimeSigValid) {
mProcessContext.timeSigNumerator = vst2timeInfo->timeSigNumerator;
mProcessContext.timeSigDenominator = vst2timeInfo->timeSigDenominator;
} else
mProcessContext.timeSigNumerator = mProcessContext.timeSigDenominator = 4;
mProcessContext.frameRate.flags = 0;
/*
if (mProcessContext.state & ProcessContext::kSmpteValid)
{
mProcessContext.smpteOffsetSubframes = vst2timeInfo->smpteOffset;
switch (vst2timeInfo->smpteFrameRate)
{
case kVstSmpte24fps: ///< 24 fps
mProcessContext.frameRate.framesPerSecond = 24;
break;
case kVstSmpte25fps: ///< 25 fps
mProcessContext.frameRate.framesPerSecond = 25;
break;
case kVstSmpte2997fps: ///< 29.97 fps
mProcessContext.frameRate.framesPerSecond = 30;
mProcessContext.frameRate.flags =
FrameRate::kPullDownRate; break; case kVstSmpte30fps: ///< 30 fps
mProcessContext.frameRate.framesPerSecond = 30;
break;
case kVstSmpte2997dfps: ///< 29.97 drop
mProcessContext.frameRate.framesPerSecond = 30;
mProcessContext.frameRate.flags =
FrameRate::kPullDownRate | FrameRate::kDropRate;
break;
case kVstSmpte30dfps: ///< 30 drop
mProcessContext.frameRate.framesPerSecond = 30;
mProcessContext.frameRate.flags =
FrameRate::kDropRate; break; case kVstSmpteFilm16mm: // not a smpte rate
case kVstSmpteFilm35mm:
mProcessContext.state &=
~ProcessContext::kSmpteValid; break; case kVstSmpte239fps: ///< 23.9 fps
mProcessContext.frameRate.framesPerSecond = 24;
mProcessContext.frameRate.flags =
FrameRate::kPullDownRate; break; case kVstSmpte249fps: ///< 24.9 fps
mProcessContext.frameRate.framesPerSecond = 25;
mProcessContext.frameRate.flags =
FrameRate::kPullDownRate; break; case kVstSmpte599fps: ///< 59.9 fps
mProcessContext.frameRate.framesPerSecond = 60;
mProcessContext.frameRate.flags =
FrameRate::kPullDownRate; break; case kVstSmpte60fps: ///< 60 fps
mProcessContext.frameRate.framesPerSecond = 60;
break;
default: mProcessContext.state &=
~ProcessContext::kSmpteValid; break;
}
}
else
{
*/
mProcessContext.smpteOffsetSubframes = 0;
mProcessContext.frameRate.framesPerSecond = 0;
// }
///< MIDI Clock Resolution (24 Per Quarter Note), can be negative (nearest)
// if (mProcessContext.state & ProcessContext::kClockValid)
// mProcessContext.samplesToNextClock =
//vst2timeInfo->samplesToNextClock; else
mProcessContext.samplesToNextClock = 0;
mProcessData.processContext = &mProcessContext;
} else
mProcessData.processContext = nullptr;
}
//------------------------------------------------------------------------
void Vst2Wrapper::suspend() { BaseWrapper::_suspend(); }
//------------------------------------------------------------------------
void Vst2Wrapper::resume() { BaseWrapper::_resume(); }
//------------------------------------------------------------------------
VstInt32 Vst2Wrapper::startProcess() {
BaseWrapper::_startProcess();
return 0;
}
//------------------------------------------------------------------------
VstInt32 Vst2Wrapper::stopProcess() {
BaseWrapper::_stopProcess();
return 0;
}
//------------------------------------------------------------------------
void Vst2Wrapper::setSampleRate(float newSamplerate) {
BaseWrapper::_setSampleRate(newSamplerate);
}
//------------------------------------------------------------------------
void Vst2Wrapper::setBlockSize(VstInt32 newBlockSize) {
BaseWrapper::_setBlockSize(newBlockSize);
}
//------------------------------------------------------------------------
float Vst2Wrapper::getParameter(VstInt32 index) {
return BaseWrapper::_getParameter(index);
}
//------------------------------------------------------------------------
void Vst2Wrapper::setParameter(VstInt32 index, float value) {
if (!mController)
return;
if (index < (int32)mParameterMap.size()) {
ParamID id = mParameterMap.at(index).vst3ID;
addParameterChange(id, (ParamValue)value, 0);
}
}
//------------------------------------------------------------------------
void Vst2Wrapper::setProgram(VstInt32 program) {
if (mProgramParameterID != kNoParamId && mController != nullptr &&
mProgramParameterIdx != -1) {
curProgram = program;
ParameterInfo paramInfo = {0};
if (mController->getParameterInfo(mProgramParameterIdx, paramInfo) ==
kResultTrue) {
if (paramInfo.stepCount > 0 && program <= paramInfo.stepCount) {
ParamValue normalized =
(ParamValue)program / (ParamValue)paramInfo.stepCount;
addParameterChange(mProgramParameterID, normalized, 0);
}
}
}
}
//------------------------------------------------------------------------
void Vst2Wrapper::setProgramName(char *name) {
// not supported in VST 3
}
//------------------------------------------------------------------------
void Vst2Wrapper::getProgramName(char *name) {
// name of the current program. Limited to #kVstMaxProgNameLen.
*name = 0;
if (mUnitInfo) {
ProgramListInfo listInfo = {0};
if (mUnitInfo->getProgramListInfo(0, listInfo) == kResultTrue) {
String128 tmp = {0};
if (mUnitInfo->getProgramName(listInfo.id, curProgram, tmp) ==
kResultTrue) {
String str(tmp);
str.copyTo8(name, 0, kVstMaxProgNameLen);
}
}
}
}
int Vst2Wrapper::getProgram() { return curProgram; }
//------------------------------------------------------------------------
bool Vst2Wrapper::getProgramNameIndexed(VstInt32, VstInt32 index, char *name) {
*name = 0;
if (mUnitInfo) {
ProgramListInfo listInfo = {0};
if (mUnitInfo->getProgramListInfo(0, listInfo) == kResultTrue) {
String128 tmp = {0};
if (mUnitInfo->getProgramName(listInfo.id, index, tmp) == kResultTrue) {
String str(tmp);
str.copyTo8(name, 0, kVstMaxProgNameLen);
return true;
}
}
}
return false;
}
//------------------------------------------------------------------------
void Vst2Wrapper::getParameterLabel(VstInt32 index, char *label) {
// units in which parameter \e index is displayed (i.e. "sec", "dB", "type",
// etc...). Limited to #kVstMaxParamStrLen.
*label = 0;
if (mController) {
int32 vst3Index = mParameterMap.at(index).vst3Index;
ParameterInfo paramInfo = {0};
if (mController->getParameterInfo(vst3Index, paramInfo) == kResultTrue) {
String str(paramInfo.units);
str.copyTo8(label, 0, kVstMaxParamStrLen);
}
}
}
//------------------------------------------------------------------------
void Vst2Wrapper::getParameterDisplay(VstInt32 index, char *text) {
// string representation ("0.5", "-3", "PLATE", etc...) of the value of
// parameter \e index. Limited to #kVstMaxParamStrLen.
*text = 0;
if (mController) {
int32 vst3Index = mParameterMap.at(index).vst3Index;
ParameterInfo paramInfo = {0};
if (mController->getParameterInfo(vst3Index, paramInfo) == kResultTrue) {
String128 tmp = {0};
ParamValue value = 0;
if (!getLastParamChange(paramInfo.id, value))
value = mController->getParamNormalized(paramInfo.id);
if (mController->getParamStringByValue(paramInfo.id, value, tmp) ==
kResultTrue) {
String str(tmp);
str.copyTo8(text, 0, kVstMaxParamStrLen);
}
}
}
}
//------------------------------------------------------------------------
void Vst2Wrapper::getParameterName(VstInt32 index, char *text) {
// name ("Time", "Gain", "RoomType", etc...) of parameter \e index. Limited to
// #kVstExtMaxParamStrLen.
*text = 0;
if (mController && index < (int32)mParameterMap.size()) {
int32 vst3Index = mParameterMap.at(index).vst3Index;
ParameterInfo paramInfo = {0};
if (mController->getParameterInfo(vst3Index, paramInfo) == kResultTrue) {
String str;
if (vst2WrapperFullParameterPath) {
//! The parameter's name contains the unit path (e.g. "LFO 1.freq") as
//! well
if (mUnitInfo) {
getUnitPath(paramInfo.unitId, str);
}
}
str.append(paramInfo.title);
if (str.length() > kVstExtMaxParamStrLen) {
//! In case the string's length exceeds the limit, try parameter's title
//! without
// unit path.
str = paramInfo.title;
}
if (str.length() > kVstExtMaxParamStrLen) {
str = paramInfo.shortTitle;
}
str.copyTo8(text, 0, kVstExtMaxParamStrLen);
}
}
}
//------------------------------------------------------------------------
bool Vst2Wrapper::canParameterBeAutomated(VstInt32 index) {
if (mController && index < (int32)mParameterMap.size()) {
int32 vst3Index = mParameterMap.at(index).vst3Index;
ParameterInfo paramInfo = {0};
if (mController->getParameterInfo(vst3Index, paramInfo) == kResultTrue)
return (paramInfo.flags & ParameterInfo::kCanAutomate) != 0;
}
return false;
}
//------------------------------------------------------------------------
bool Vst2Wrapper::string2parameter(VstInt32 index, char *text) {
if (mController && index < (int32)mParameterMap.size()) {
int32 vst3Index = mParameterMap.at(index).vst3Index;
ParameterInfo paramInfo = {0};
if (mController->getParameterInfo(vst3Index, paramInfo) == kResultTrue) {
TChar tString[1024] = {0};
String tmp(text);
tmp.copyTo16(tString, 0, 1023);
ParamValue valueNormalized = 0.0;
if (mController->getParamValueByString(paramInfo.id, tString,
valueNormalized)) {
setParameter(index, (float)valueNormalized);
if (audioMaster)
audioMaster(&plugin, audioMasterAutomate, index, 0, 0,
(float)valueNormalized);
// setParameterAutomated (index, (float)valueNormalized);
// TODO: check if setParameterAutomated is correct
}
}
}
return false;
}
//------------------------------------------------------------------------
VstInt32 Vst2Wrapper::getChunk(void **data, bool isPreset) {
return BaseWrapper::_getChunk(data, isPreset);
}
//------------------------------------------------------------------------
VstInt32 Vst2Wrapper::setChunk(void *data, VstInt32 byteSize, bool isPreset) {
return BaseWrapper::_setChunk(data, byteSize, isPreset);
}
//------------------------------------------------------------------------
bool Vst2Wrapper::setBypass(bool onOff) {
return BaseWrapper::_setBypass(onOff);
}
//-----------------------------------------------------------------------------
bool Vst2Wrapper::setProcessPrecision(VstInt32 precision) {
int32 newVst3SampleSize = -1;
if (precision == kVstProcessPrecision32)
newVst3SampleSize = kSample32;
else if (precision == kVstProcessPrecision64)
newVst3SampleSize = kSample64;
if (newVst3SampleSize != mVst3SampleSize) {
if (mProcessor &&
mProcessor->canProcessSampleSize(newVst3SampleSize) == kResultTrue) {
mVst3SampleSize = newVst3SampleSize;
setupProcessing();
setupBuses();
return true;
}
return false;
}
return true;
}
//-----------------------------------------------------------------------------
VstInt32 Vst2Wrapper::getNumMidiInputChannels() {
if (!mComponent)
return 0;
int32 busCount = mComponent->getBusCount(kEvent, kInput);
if (busCount > 0) {
BusInfo busInfo = {0};
if (mComponent->getBusInfo(kEvent, kInput, 0, busInfo) == kResultTrue) {
return busInfo.channelCount;
}
}
return 0;
}
//-----------------------------------------------------------------------------
VstInt32 Vst2Wrapper::getNumMidiOutputChannels() {
if (!mComponent)
return 0;
int32 busCount = mComponent->getBusCount(kEvent, kOutput);
if (busCount > 0) {
BusInfo busInfo = {0};
if (mComponent->getBusInfo(kEvent, kOutput, 0, busInfo) == kResultTrue) {
return busInfo.channelCount;
}
}
return 0;
}
//-----------------------------------------------------------------------------
VstInt32 Vst2Wrapper::getGetTailSize() {
if (mProcessor)
return mProcessor->getTailSamples();
return 0;
}
//-----------------------------------------------------------------------------
bool Vst2Wrapper::getEffectName(char *effectName) {
if (mName[0]) {
strncpy(effectName, mName, kVstMaxEffectNameLen);
return true;
}
return false;
}
//-----------------------------------------------------------------------------
bool Vst2Wrapper::getVendorString(char *text) {
if (mVendor[0]) {
strncpy(text, mVendor, kVstMaxVendorStrLen);
return true;
}
return false;
}
//-----------------------------------------------------------------------------
VstInt32 Vst2Wrapper::getVendorVersion() { return mVersion; }
//-----------------------------------------------------------------------------
VstIntPtr Vst2Wrapper::vendorSpecific(VstInt32 lArg, VstIntPtr lArg2,
void *ptrArg, float floatArg) {
switch (lArg) {
case 'stCA':
case 'stCa':
switch (lArg2) {
//--- -------
case 'FUID':
if (ptrArg && mVst3EffectClassID.isValid()) {
memcpy((char *)ptrArg, mVst3EffectClassID, 16);
return 1;
}
break;
}
}
}
//-----------------------------------------------------------------------------
VstInt32 Vst2Wrapper::canDo(char *text) {
if (stricmp(text, "sendVstEvents") == 0) {
return -1;
} else if (stricmp(text, "sendVstMidiEvent") == 0) {
return mHasEventOutputBuses ? 1 : -1;
} else if (stricmp(text, "receiveVstEvents") == 0) {
return -1;
} else if (stricmp(text, "receiveVstMidiEvent") == 0) {
return mHasEventInputBuses ? 1 : -1;
} else if (stricmp(text, "receiveVstTimeInfo") == 0) {
return 1;
} else if (stricmp(text, "offline") == 0) {
if (mProcessing)
return 0;
if (mVst3processMode == kOffline)
return 1;
bool canOffline = setupProcessing(kOffline);
setupProcessing();
return canOffline ? 1 : -1;
} else if (stricmp(text, "midiProgramNames") == 0) {
if (mUnitInfo) {
UnitID unitId = -1;
if (mUnitInfo->getUnitByBus(kEvent, kInput, 0, 0, unitId) ==
kResultTrue &&
unitId >= 0)
return 1;
}
return -1;
} else if (stricmp(text, "bypass") == 0) {
return mBypassParameterID != kNoParamId ? 1 : -1;
}
return 0; // do not know
}
//-----------------------------------------------------------------------------
void Vst2Wrapper::setupParameters() {
BaseWrapper::setupParameters();
// cEffect.numParams = mNumParams;
numparams = mNumParams;
}
//-----------------------------------------------------------------------------
VstInt32 Vst2Wrapper::processEvents(VstEvents *events) {
if (mInputEvents == nullptr)
return 0;
mInputEvents->clear();
for (int32 i = 0; i < events->numEvents; i++) {
VstEvent *e = events->events[i];
if (e->type == kVstMidiType) {
auto *midiEvent = (VstMidiEvent *)e;
Event toAdd = {0, midiEvent->deltaFrames, 0};
processMidiEvent(
toAdd, &midiEvent->midiData[0],
midiEvent->flags & kVstMidiEventIsRealtime, midiEvent->noteLength,
midiEvent->noteOffVelocity * kMidiScaler, midiEvent->detune);
}
//--- -----------------------------
}
return 0;
}
//-----------------------------------------------------------------------------
inline void Vst2Wrapper::processOutputEvents() {
if (mVst2OutputEvents && mOutputEvents &&
mOutputEvents->getEventCount() > 0) {
mVst2OutputEvents->flush();
Event e = {0};
for (int32 i = 0, total = mOutputEvents->getEventCount(); i < total; i++) {
if (mOutputEvents->getEvent(i, e) != kResultOk)
break;
VstMidiEvent midiEvent = {0};
midiEvent.deltaFrames = e.sampleOffset;
if (e.flags & Event::kIsLive)
midiEvent.flags = kVstMidiEventIsRealtime;
char *midiData = midiEvent.midiData;
switch (e.type) {
//--- ---------------------
case Event::kNoteOnEvent:
midiData[0] = (char)(kNoteOn | (e.noteOn.channel & kChannelMask));
midiData[1] = (char)(e.noteOn.pitch & kDataMask);
midiData[2] =
(char)((int32)(e.noteOn.velocity * 127.f + 0.4999999f) & kDataMask);
if (midiData[2] == 0) // zero velocity => note off
midiData[0] = (char)(kNoteOff | (e.noteOn.channel & kChannelMask));
midiEvent.detune = (char)e.noteOn.tuning;
midiEvent.noteLength = e.noteOn.length;
break;
//--- ---------------------
case Event::kNoteOffEvent:
midiData[0] = (char)(kNoteOff | (e.noteOff.channel & kChannelMask));
midiData[1] = (char)(e.noteOff.pitch & kDataMask);
midiData[2] = midiEvent.noteOffVelocity =
(char)((int32)(e.noteOff.velocity * 127.f + 0.4999999f) &
kDataMask);
break;
break;
}
if (!mVst2OutputEvents->add(midiEvent))
break;
}
mOutputEvents->clear();
// sendVstEventsToHost (*mVst2OutputEvents);
if (audioMaster)
audioMaster(&plugin, audioMasterProcessEvents, 0, 0, *mVst2OutputEvents,
0);
}
}
//-----------------------------------------------------------------------------
void Vst2Wrapper::updateProcessLevel() {
int32 currentLevel;
currentLevel = 0;
if (audioMaster)
currentLevel =
audioMaster(&plugin, audioMasterGetCurrentProcessLevel, 0, 0, 0, 0);
// getCurrentProcessLevel ();
if (mCurrentProcessLevel != currentLevel) {
mCurrentProcessLevel = currentLevel;
// if (mCurrentProcessLevel == kVstProcessLevelOffline)
// mVst3processMode = kOffline;
// else
mVst3processMode = kRealtime;
bool callStartStop = mProcessing;
if (callStartStop)
stopProcess();
setupProcessing();
if (callStartStop)
startProcess();
}
}
//-----------------------------------------------------------------------------
void Vst2Wrapper::processReplacing(float **inputs, float **outputs,
VstInt32 sampleFrames) {
updateProcessLevel();
_processReplacing(inputs, outputs, sampleFrames);
}
//-----------------------------------------------------------------------------
void Vst2Wrapper::processDoubleReplacing(double **inputs, double **outputs,
VstInt32 sampleFrames) {
updateProcessLevel();
_processDoubleReplacing(inputs, outputs, sampleFrames);
}
//-----------------------------------------------------------------------------
// static
//-----------------------------------------------------------------------------
Vst2Wrapper *Vst2Wrapper::create(IPluginFactory *factory,
const TUID vst3ComponentID, VstInt32 vst2ID,
audioMasterCallback audioMaster,
intptr_t remoteptr) {
if (!factory)
return nullptr;
BaseWrapper::SVST3Config config;
config.factory = factory;
config.processor = nullptr;
config.component = nullptr;
FReleaser factoryReleaser(factory);
config.factory = factory;
config.vst3ComponentID = FUID::fromTUID(vst3ComponentID);
auto *wrapper = new Vst2Wrapper(config, audioMaster, vst2ID, remoteptr);
if (!wrapper)
return nullptr;
if (wrapper->init(audioMaster, &wrapper->plugin) == false) {
wrapper->release();
return nullptr;
}
FUnknownPtr<IPluginFactory2> factory2(factory);
if (factory2) {
PFactoryInfo factoryInfo;
if (factory2->getFactoryInfo(&factoryInfo) == kResultTrue)
wrapper->setVendorName(factoryInfo.vendor);
for (int32 i = 0; i < factory2->countClasses(); i++) {
Steinberg::PClassInfo2 classInfo2;
if (factory2->getClassInfo2(i, &classInfo2) == Steinberg::kResultTrue) {
if (memcmp(classInfo2.cid, vst3ComponentID, sizeof(TUID)) == 0) {
wrapper->setSubCategories(classInfo2.subCategories);
wrapper->setEffectName(classInfo2.name);
wrapper->setEffectVersion(classInfo2.version);
if (classInfo2.vendor[0] != 0)
wrapper->setVendorName(classInfo2.vendor);
break;
}
}
}
}
if (strstr(wrapper->mSubCategories, "Instrument"))
wrapper->synth = true;
return wrapper;
}
//-----------------------------------------------------------------------------
tresult PLUGIN_API Vst2Wrapper::getName(String128 name) {
char8 productString[128];
int retval;
retval = 0;
if (audioMaster)
retval = audioMaster(&plugin, audioMasterGetProductString, 0, 0,