mirror/JUCE
1
0
Fork 0
mirror of https://github.com/juce-framework/JUCE.git synced 2026-01-10 23:44:24 +00:00
Code Activity
JUCE/extras/audio plugins/wrapper/VST/juce_VST_Wrapper.cpp

1610 lines
47 KiB
C++
Raw Blame History

/*
==============================================================================
This file is part of the JUCE library - "Jules' Utility Class Extensions"
Copyright 2004-10 by Raw Material Software Ltd.
------------------------------------------------------------------------------
JUCE can be redistributed and/or modified under the terms of the GNU General
Public License (Version 2), as published by the Free Software Foundation.
A copy of the license is included in the JUCE distribution, or can be found
online at www.gnu.org/licenses.
JUCE 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.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.rawmaterialsoftware.com/juce for more information.
==============================================================================
*/
#ifdef _MSC_VER
#pragma warning (disable : 4996)
#endif
#ifdef _WIN32
#include <windows.h>
#elif defined (LINUX)
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#undef KeyPress
#else
#include <Carbon/Carbon.h>
#endif
#ifdef PRAGMA_ALIGN_SUPPORTED
#undef PRAGMA_ALIGN_SUPPORTED
#define PRAGMA_ALIGN_SUPPORTED 1
#endif
#include "../juce_IncludeCharacteristics.h"
#if JucePlugin_Build_VST
//==============================================================================
/* These files come with the Steinberg VST SDK - to get them, you'll need to
visit the Steinberg website and jump through some hoops to sign up as a
VST developer.
Then, you'll need to make sure your include path contains your "vstsdk2.3" or
"vstsdk2.4" directory.
Note that the JUCE_USE_VSTSDK_2_4 macro should be defined in JucePluginCharacteristics.h
*/
#if JUCE_USE_VSTSDK_2_4
#ifdef __GNUC__
#define __cdecl
#endif
// VSTSDK V2.4 includes..
#include "public.sdk/source/vst2.x/audioeffectx.h"
#include "public.sdk/source/vst2.x/aeffeditor.h"
#include "public.sdk/source/vst2.x/audioeffectx.cpp"
#include "public.sdk/source/vst2.x/audioeffect.cpp"
#if ! VST_2_4_EXTENSIONS
#error // You're probably trying to include the wrong VSTSDK version - make sure your include path matches the JUCE_USE_VSTSDK_2_4 flag
#endif
#else
// VSTSDK V2.3 includes..
#include "source/common/audioeffectx.h"
#include "source/common/AEffEditor.hpp"
#include "source/common/audioeffectx.cpp"
#include "source/common/AudioEffect.cpp"
#if (! VST_2_3_EXTENSIONS) || VST_2_4_EXTENSIONS
#error // You're probably trying to include the wrong VSTSDK version - make sure your include path matches the JUCE_USE_VSTSDK_2_4 flag
#endif
#define __aeffect__ // (needed for juce_VSTMidiEventList.h to work)
typedef long VstInt32;
typedef long VstIntPtr;
enum Vst2StringConstants
{
kVstMaxNameLen = 64,
kVstMaxLabelLen = 64,
kVstMaxShortLabelLen = 8,
kVstMaxCategLabelLen = 24,
kVstMaxFileNameLen = 100
};
enum VstSmpteFrameRate
{
kVstSmpte24fps = 0, ///< 24 fps
kVstSmpte25fps = 1, ///< 25 fps
kVstSmpte2997fps = 2, ///< 29.97 fps
kVstSmpte30fps = 3, ///< 30 fps
kVstSmpte2997dfps = 4, ///< 29.97 drop
kVstSmpte30dfps = 5, ///< 30 drop
kVstSmpteFilm16mm = 6, ///< Film 16mm
kVstSmpteFilm35mm = 7, ///< Film 35mm
kVstSmpte239fps = 10, ///< HDTV: 23.976 fps
kVstSmpte249fps = 11, ///< HDTV: 24.976 fps
kVstSmpte599fps = 12, ///< HDTV: 59.94 fps
kVstSmpte60fps = 13 ///< HDTV: 60 fps
};
struct VstMidiSysexEvent
{
VstInt32 type; ///< #kVstSysexType
VstInt32 byteSize; ///< sizeof (VstMidiSysexEvent)
VstInt32 deltaFrames; ///< sample frames related to the current block start sample position
VstInt32 flags; ///< none defined yet (should be zero)
VstInt32 dumpBytes; ///< byte size of sysexDump
VstIntPtr resvd1; ///< zero (Reserved for future use)
char* sysexDump; ///< sysex dump
VstIntPtr resvd2; ///< zero (Reserved for future use)
};
typedef int VstSpeakerArrangementType;
#endif
//==============================================================================
#ifdef _MSC_VER
#pragma pack (push, 8)
#endif
#include "../juce_PluginHeaders.h"
#include "../juce_PluginHostType.h"
#ifdef _MSC_VER
#pragma pack (pop)
#endif
#undef MemoryBlock
class JuceVSTWrapper;
static bool recursionCheck = false;
static JUCE_NAMESPACE::uint32 lastMasterIdleCall = 0;
BEGIN_JUCE_NAMESPACE
extern void juce_callAnyTimersSynchronously();
#if JUCE_MAC
extern void initialiseMac();
extern void* attachComponentToWindowRef (Component* component, void* windowRef);
extern void detachComponentFromWindowRef (Component* component, void* nsWindow);
extern void setNativeHostWindowSize (void* nsWindow, Component* editorComp, int newWidth, int newHeight);
extern void checkWindowVisibility (void* nsWindow, Component* component);
extern void forwardCurrentKeyEventToHost (Component* component);
#endif
#if JUCE_LINUX
extern Display* display;
extern bool juce_postMessageToSystemQueue (void* message);
#endif
END_JUCE_NAMESPACE
//==============================================================================
#if JUCE_WIN32
static HWND findMDIParentOf (HWND w)
{
const int frameThickness = GetSystemMetrics (SM_CYFIXEDFRAME);
while (w != 0)
{
HWND parent = GetParent (w);
if (parent == 0)
break;
TCHAR windowType [32];
zeromem (windowType, sizeof (windowType));
GetClassName (parent, windowType, 31);
if (String (windowType).equalsIgnoreCase (T("MDIClient")))
{
w = parent;
break;
}
RECT windowPos;
GetWindowRect (w, &windowPos);
RECT parentPos;
GetWindowRect (parent, &parentPos);
const int dw = (parentPos.right - parentPos.left) - (windowPos.right - windowPos.left);
const int dh = (parentPos.bottom - parentPos.top) - (windowPos.bottom - windowPos.top);
if (dw > 100 || dh > 100)
break;
w = parent;
if (dw == 2 * frameThickness)
break;
}
return w;
}
//==============================================================================
#elif JUCE_LINUX
class SharedMessageThread : public Thread
{
public:
SharedMessageThread()
: Thread (T("VstMessageThread")),
initialised (false)
{
startThread (7);
while (! initialised)
sleep (1);
}
~SharedMessageThread()
{
signalThreadShouldExit();
JUCEApplication::quit();
waitForThreadToExit (5000);
clearSingletonInstance();
}
void run()
{
initialiseJuce_GUI();
initialised = true;
MessageManager::getInstance()->setCurrentThreadAsMessageThread();
while ((! threadShouldExit()) && MessageManager::getInstance()->runDispatchLoopUntil (250))
{
}
}
juce_DeclareSingleton (SharedMessageThread, false)
private:
bool initialised;
};
juce_ImplementSingleton (SharedMessageThread)
#endif
//==============================================================================
// A component to hold the AudioProcessorEditor, and cope with some housekeeping
// chores when it changes or repaints.
class EditorCompWrapper : public Component,
public AsyncUpdater
{
JuceVSTWrapper* wrapper;
public:
EditorCompWrapper (JuceVSTWrapper* const wrapper_,
AudioProcessorEditor* const editor)
: wrapper (wrapper_)
{
setOpaque (true);
editor->setOpaque (true);
setBounds (editor->getBounds());
editor->setTopLeftPosition (0, 0);
addAndMakeVisible (editor);
#if JUCE_WIN32
addMouseListener (this, true);
#endif
}
~EditorCompWrapper()
{
deleteAllChildren();
}
void paint (Graphics& g)
{
}
void paintOverChildren (Graphics& g)
{
// this causes an async call to masterIdle() to help
// creaky old DAWs like Nuendo repaint themselves while we're
// repainting. Otherwise they just seem to give up and sit there
// waiting.
triggerAsyncUpdate();
}
#if JUCE_MAC
bool keyPressed (const KeyPress& kp)
{
// If we have an unused keypress, move the key-focus to a host window
// and re-inject the event..
forwardCurrentKeyEventToHost (this);
return true;
}
#endif
AudioProcessorEditor* getEditorComp() const
{
return dynamic_cast <AudioProcessorEditor*> (getChildComponent (0));
}
void resized()
{
Component* const c = getChildComponent (0);
if (c != 0)
c->setBounds (0, 0, getWidth(), getHeight());
}
void childBoundsChanged (Component* child);
void handleAsyncUpdate();
#if JUCE_WIN32
void mouseDown (const MouseEvent&)
{
broughtToFront();
}
void broughtToFront()
{
// for hosts like nuendo, need to also pop the MDI container to the
// front when our comp is clicked on.
HWND parent = findMDIParentOf ((HWND) getWindowHandle());
if (parent != 0)
{
SetWindowPos (parent,
HWND_TOP,
0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE);
}
}
#endif
//==============================================================================
juce_UseDebuggingNewOperator
};
static Array<void*> activePlugins;
//==============================================================================
/**
This wraps an AudioProcessor as an AudioEffectX...
*/
class JuceVSTWrapper : public AudioEffectX,
private Timer,
public AudioProcessorListener,
public AudioPlayHead
{
public:
//==============================================================================
JuceVSTWrapper (audioMasterCallback audioMaster,
AudioProcessor* const filter_)
: AudioEffectX (audioMaster,
filter_->getNumPrograms(),
filter_->getNumParameters()),
filter (filter_)
{
editorComp = 0;
chunkMemoryTime = 0;
isProcessing = false;
hasShutdown = false;
firstProcessCallback = true;
shouldDeleteEditor = false;
speakerIn = kSpeakerArrEmpty;
speakerOut = kSpeakerArrEmpty;
numInChans = JucePlugin_MaxNumInputChannels;
numOutChans = JucePlugin_MaxNumOutputChannels;
#if JUCE_MAC || JUCE_LINUX
hostWindow = 0;
#endif
filter->setPlayConfigDetails (numInChans, numOutChans, 0, 0);
filter_->setPlayHead (this);
filter_->addListener (this);
cEffect.flags |= effFlagsHasEditor;
cEffect.version = (long) (JucePlugin_VersionCode);
setUniqueID ((int) (JucePlugin_VSTUniqueID));
#if JucePlugin_WantsMidiInput && ! JUCE_USE_VSTSDK_2_4
wantEvents();
#endif
setNumInputs (numInChans);
setNumOutputs (numOutChans);
canProcessReplacing (true);
#if ! JUCE_USE_VSTSDK_2_4
hasVu (false);
hasClip (false);
#endif
isSynth ((JucePlugin_IsSynth) != 0);
noTail (((JucePlugin_SilenceInProducesSilenceOut) != 0) && (JucePlugin_TailLengthSeconds <= 0));
setInitialDelay (filter->getLatencySamples());
programsAreChunks (true);
activePlugins.add (this);
}
~JuceVSTWrapper()
{
stopTimer();
deleteEditor (false);
hasShutdown = true;
delete filter;
filter = 0;
jassert (editorComp == 0);
channels.free();
deleteTempChannels();
jassert (activePlugins.contains (this));
activePlugins.removeValue (this);
if (activePlugins.size() == 0)
{
#if JUCE_LINUX
SharedMessageThread::deleteInstance();
#endif
shutdownJuce_GUI();
}
}
void open()
{
if (editorComp == 0)
{
checkWhetherWavelabHasChangedThread();
const MessageManagerLock mmLock;
AudioProcessorEditor* const ed = filter->createEditorIfNeeded();
if (ed != 0)
cEffect.flags |= effFlagsHasEditor;
else
cEffect.flags &= ~effFlagsHasEditor;
filter->editorBeingDeleted (ed);
delete ed;
}
startTimer (1000 / 4);
}
void close()
{
const NonWavelabMMLock mmLock;
jassert (! recursionCheck);
stopTimer();
deleteEditor (false);
}
//==============================================================================
bool getEffectName (char* name)
{
String (JucePlugin_Name).copyToCString (name, 64);
return true;
}
bool getVendorString (char* text)
{
String (JucePlugin_Manufacturer).copyToCString (text, 64);
return true;
}
bool getProductString (char* text)
{
return getEffectName (text);
}
VstInt32 getVendorVersion()
{
return JucePlugin_VersionCode;
}
VstPlugCategory getPlugCategory()
{
return JucePlugin_VSTCategory;
}
VstInt32 canDo (char* text)
{
VstInt32 result = 0;
if (strcmp (text, "receiveVstEvents") == 0
|| strcmp (text, "receiveVstMidiEvent") == 0
|| strcmp (text, "receiveVstMidiEvents") == 0)
{
#if JucePlugin_WantsMidiInput
result = 1;
#else
result = -1;
#endif
}
else if (strcmp (text, "sendVstEvents") == 0
|| strcmp (text, "sendVstMidiEvent") == 0
|| strcmp (text, "sendVstMidiEvents") == 0)
{
#if JucePlugin_ProducesMidiOutput
result = 1;
#else
result = -1;
#endif
}
else if (strcmp (text, "receiveVstTimeInfo") == 0
|| strcmp (text, "conformsToWindowRules") == 0)
{
result = 1;
}
return result;
}
bool keysRequired()
{
return (JucePlugin_EditorRequiresKeyboardFocus) != 0;
}
bool getInputProperties (VstInt32 index, VstPinProperties* properties)
{
if (filter == 0 || index >= JucePlugin_MaxNumInputChannels)
return false;
const String name (filter->getInputChannelName ((int) index));
name.copyToCString (properties->label, kVstMaxLabelLen - 1);
name.copyToCString (properties->shortLabel, kVstMaxShortLabelLen - 1);
if (speakerIn != kSpeakerArrEmpty)
{
properties->flags = kVstPinUseSpeaker;
properties->arrangementType = speakerIn;
}
else
{
properties->flags = kVstPinIsActive;
if (filter->isInputChannelStereoPair ((int) index))
properties->flags |= kVstPinIsStereo;
properties->arrangementType = 0;
}
return true;
}
bool getOutputProperties (VstInt32 index, VstPinProperties* properties)
{
if (filter == 0 || index >= JucePlugin_MaxNumOutputChannels)
return false;
const String name (filter->getOutputChannelName ((int) index));
name.copyToCString (properties->label, kVstMaxLabelLen - 1);
name.copyToCString (properties->shortLabel, kVstMaxShortLabelLen - 1);
if (speakerOut != kSpeakerArrEmpty)
{
properties->flags = kVstPinUseSpeaker;
properties->arrangementType = speakerOut;
}
else
{
properties->flags = kVstPinIsActive;
if (filter->isOutputChannelStereoPair ((int) index))
properties->flags |= kVstPinIsStereo;
properties->arrangementType = 0;
}
return true;
}
//==============================================================================
VstInt32 processEvents (VstEvents* events)
{
#if JucePlugin_WantsMidiInput
VSTMidiEventList::addEventsToMidiBuffer (events, midiEvents);
return 1;
#else
return 0;
#endif
}
void process (float** inputs, float** outputs, VstInt32 numSamples)
{
const int numIn = numInChans;
const int numOut = numOutChans;
AudioSampleBuffer temp (numIn, numSamples);
int i;
for (i = numIn; --i >= 0;)
memcpy (temp.getSampleData (i), outputs[i], sizeof (float) * numSamples);
processReplacing (inputs, outputs, numSamples);
AudioSampleBuffer dest (outputs, numOut, numSamples);
for (i = jmin (numIn, numOut); --i >= 0;)
dest.addFrom (i, 0, temp, i, 0, numSamples);
}
void processReplacing (float** inputs, float** outputs, VstInt32 numSamples)
{
if (firstProcessCallback)
{
firstProcessCallback = false;
// if this fails, the host hasn't called resume() before processing
jassert (isProcessing);
// (tragically, some hosts actually need this, although it's stupid to have
// to do it here..)
if (! isProcessing)
resume();
filter->setNonRealtime (getCurrentProcessLevel() == 4 /* kVstProcessLevelOffline */);
#if JUCE_WIN32
if (GetThreadPriority (GetCurrentThread()) <= THREAD_PRIORITY_NORMAL
&& GetThreadPriority (GetCurrentThread()) >= THREAD_PRIORITY_LOWEST)
filter->setNonRealtime (true);
#endif
}
#if JUCE_DEBUG && ! JucePlugin_ProducesMidiOutput
const int numMidiEventsComingIn = midiEvents.getNumEvents();
#endif
jassert (activePlugins.contains (this));
{
const ScopedLock sl (filter->getCallbackLock());
const int numIn = numInChans;
const int numOut = numOutChans;
if (filter->isSuspended())
{
for (int i = 0; i < numOut; ++i)
zeromem (outputs[i], sizeof (float) * numSamples);
}
else
{
int i;
for (i = 0; i < numOut; ++i)
{
float* chan = tempChannels.getUnchecked(i);
if (chan == 0)
{
chan = outputs[i];
// if some output channels are disabled, some hosts supply the same buffer
// for multiple channels - this buggers up our method of copying the
// inputs over the outputs, so we need to create unique temp buffers in this case..
for (int j = i; --j >= 0;)
{
if (outputs[j] == chan)
{
chan = (float*) juce_malloc (sizeof (float) * blockSize * 2);
tempChannels.set (i, chan);
break;
}
}
}
if (i < numIn && chan != inputs[i])
memcpy (chan, inputs[i], sizeof (float) * numSamples);
channels[i] = chan;
}
for (; i < numIn; ++i)
channels[i] = inputs[i];
AudioSampleBuffer chans (channels, jmax (numIn, numOut), numSamples);
filter->processBlock (chans, midiEvents);
}
}
if (! midiEvents.isEmpty())
{
#if JucePlugin_ProducesMidiOutput
const int numEvents = midiEvents.getNumEvents();
outgoingEvents.ensureSize (numEvents);
outgoingEvents.clear();
const JUCE_NAMESPACE::uint8* midiEventData;
int midiEventSize, midiEventPosition;
MidiBuffer::Iterator i (midiEvents);
while (i.getNextEvent (midiEventData, midiEventSize, midiEventPosition))
{
jassert (midiEventPosition >= 0 && midiEventPosition < numSamples);
outgoingEvents.addEvent (midiEventData, midiEventSize, midiEventPosition);
}
sendVstEventsToHost (outgoingEvents.events);
#else
/* This assertion is caused when you've added some events to the
midiMessages array in your processBlock() method, which usually means
that you're trying to send them somewhere. But in this case they're
getting thrown away.
If your plugin does want to send midi messages, you'll need to set
the JucePlugin_ProducesMidiOutput macro to 1 in your
JucePluginCharacteristics.h file.
If you don't want to produce any midi output, then you should clear the
midiMessages array at the end of your processBlock() method, to
indicate that you don't want any of the events to be passed through
to the output.
*/
jassert (midiEvents.getNumEvents() <= numMidiEventsComingIn);
#endif
midiEvents.clear();
}
}
//==============================================================================
VstInt32 startProcess () { return 0; }
VstInt32 stopProcess () { return 0;}
void resume()
{
if (filter == 0)
return;
isProcessing = true;
channels.calloc (numInChans + numOutChans);
double rate = getSampleRate();
jassert (rate > 0);
if (rate <= 0.0)
rate = 44100.0;
const int blockSize = getBlockSize();
jassert (blockSize > 0);
firstProcessCallback = true;
filter->setNonRealtime (getCurrentProcessLevel() == 4 /* kVstProcessLevelOffline */);
filter->setPlayConfigDetails (numInChans, numOutChans,
rate, blockSize);
deleteTempChannels();
filter->prepareToPlay (rate, blockSize);
midiEvents.ensureSize (2048);
midiEvents.clear();
setInitialDelay (filter->getLatencySamples());
AudioEffectX::resume();
#if JucePlugin_ProducesMidiOutput
outgoingEvents.ensureSize (512);
#endif
#if JucePlugin_WantsMidiInput && ! JUCE_USE_VSTSDK_2_4
wantEvents();
#endif
}
void suspend()
{
if (filter == 0)
return;
AudioEffectX::suspend();
filter->releaseResources();
outgoingEvents.freeEvents();
isProcessing = false;
channels.free();
deleteTempChannels();
}
bool getCurrentPosition (AudioPlayHead::CurrentPositionInfo& info)
{
const VstTimeInfo* const ti = getTimeInfo (kVstPpqPosValid
| kVstTempoValid
| kVstBarsValid
//| kVstCyclePosValid
| kVstTimeSigValid
| kVstSmpteValid
| kVstClockValid);
if (ti == 0 || ti->sampleRate <= 0)
return false;
if ((ti->flags & kVstTempoValid) != 0)
info.bpm = ti->tempo;
else
info.bpm = 0.0;
if ((ti->flags & kVstTimeSigValid) != 0)
{
info.timeSigNumerator = ti->timeSigNumerator;
info.timeSigDenominator = ti->timeSigDenominator;
}
else
{
info.timeSigNumerator = 4;
info.timeSigDenominator = 4;
}
info.timeInSeconds = ti->samplePos / ti->sampleRate;
if ((ti->flags & kVstPpqPosValid) != 0)
info.ppqPosition = ti->ppqPos;
else
info.ppqPosition = 0.0;
if ((ti->flags & kVstBarsValid) != 0)
info.ppqPositionOfLastBarStart = ti->barStartPos;
else
info.ppqPositionOfLastBarStart = 0.0;
if ((ti->flags & kVstSmpteValid) != 0)
{
AudioPlayHead::FrameRateType rate = AudioPlayHead::fpsUnknown;
double fps = 1.0;
switch (ti->smpteFrameRate)
{
case kVstSmpte24fps:
rate = AudioPlayHead::fps24;
fps = 24.0;
break;
case kVstSmpte25fps:
rate = AudioPlayHead::fps25;
fps = 25.0;
break;
case kVstSmpte2997fps:
rate = AudioPlayHead::fps2997;
fps = 29.97;
break;
case kVstSmpte30fps:
rate = AudioPlayHead::fps30;
fps = 30.0;
break;
case kVstSmpte2997dfps:
rate = AudioPlayHead::fps2997drop;
fps = 29.97;
break;
case kVstSmpte30dfps:
rate = AudioPlayHead::fps30drop;
fps = 30.0;
break;
case kVstSmpteFilm16mm:
case kVstSmpteFilm35mm:
fps = 24.0;
break;
case kVstSmpte239fps: fps = 23.976; break;
case kVstSmpte249fps: fps = 24.976; break;
case kVstSmpte599fps: fps = 59.94; break;
case kVstSmpte60fps: fps = 60; break;
default:
jassertfalse // unknown frame-rate..
}
info.frameRate = rate;
info.editOriginTime = ti->smpteOffset / (80.0 * fps);
}
else
{
info.frameRate = AudioPlayHead::fpsUnknown;
info.editOriginTime = 0;
}
info.isRecording = (ti->flags & kVstTransportRecording) != 0;
info.isPlaying = (ti->flags & kVstTransportPlaying) != 0 || info.isRecording;
return true;
}
//==============================================================================
VstInt32 getProgram()
{
return filter != 0 ? filter->getCurrentProgram() : 0;
}
void setProgram (VstInt32 program)
{
if (filter != 0)
filter->setCurrentProgram (program);
}
void setProgramName (char* name)
{
if (filter != 0)
filter->changeProgramName (filter->getCurrentProgram(), name);
}
void getProgramName (char* name)
{
if (filter != 0)
filter->getProgramName (filter->getCurrentProgram()).copyToCString (name, 24);
}
bool getProgramNameIndexed (VstInt32 category, VstInt32 index, char* text)
{
if (filter != 0 && ((unsigned int) index) < (unsigned int) filter->getNumPrograms())
{
filter->getProgramName (index).copyToCString (text, 24);
return true;
}
return false;
}
//==============================================================================
float getParameter (VstInt32 index)
{
if (filter == 0)
return 0.0f;
jassert (((unsigned int) index) < (unsigned int) filter->getNumParameters());
return filter->getParameter (index);
}
void setParameter (VstInt32 index, float value)
{
if (filter != 0)
{
jassert (((unsigned int) index) < (unsigned int) filter->getNumParameters());
filter->setParameter (index, value);
}
}
void getParameterDisplay (VstInt32 index, char* text)
{
if (filter != 0)
{
jassert (((unsigned int) index) < (unsigned int) filter->getNumParameters());
filter->getParameterText (index).copyToCString (text, 24); // length should technically be kVstMaxParamStrLen, which is 8, but hosts will normally allow a bit more.
}
}
void getParameterName (VstInt32 index, char* text)
{
if (filter != 0)
{
jassert (((unsigned int) index) < (unsigned int) filter->getNumParameters());
filter->getParameterName (index).copyToCString (text, 16); // length should technically be kVstMaxParamStrLen, which is 8, but hosts will normally allow a bit more.
}
}
void audioProcessorParameterChanged (AudioProcessor*, int index, float newValue)
{
setParameterAutomated (index, newValue);
}
void audioProcessorParameterChangeGestureBegin (AudioProcessor*, int index)
{
beginEdit (index);
}
void audioProcessorParameterChangeGestureEnd (AudioProcessor*, int index)
{
endEdit (index);
}
void audioProcessorChanged (AudioProcessor*)
{
updateDisplay();
}
bool canParameterBeAutomated (VstInt32 index)
{
return filter != 0 && filter->isParameterAutomatable ((int) index);
}
class ChannelConfigComparator
{
public:
static int compareElements (const short* const first, const short* const second)
{
if (first[0] < second[0])
return -1;
else if (first[0] > second[0])
return 1;
else if (first[1] < second[1])
return -1;
else if (first[1] > second[1])
return 1;
return 0;
}
};
bool setSpeakerArrangement (VstSpeakerArrangement* pluginInput,
VstSpeakerArrangement* pluginOutput)
{
short channelConfigs[][2] = { JucePlugin_PreferredChannelConfigurations };
Array <short*> channelConfigsSorted;
ChannelConfigComparator comp;
for (int i = 0; i < numElementsInArray (channelConfigs); ++i)
channelConfigsSorted.addSorted (comp, channelConfigs[i]);
for (int i = channelConfigsSorted.size(); --i >= 0;)
{
const short* const config = channelConfigsSorted.getUnchecked(i);
bool inCountMatches = (config[0] == pluginInput->numChannels);
bool outCountMatches = (config[1] == pluginOutput->numChannels);
if (inCountMatches && outCountMatches)
{
speakerIn = (VstSpeakerArrangementType) pluginInput->type;
speakerOut = (VstSpeakerArrangementType) pluginOutput->type;
numInChans = pluginInput->numChannels;
numOutChans = pluginOutput->numChannels;
filter->setPlayConfigDetails (numInChans, numOutChans,
filter->getSampleRate(),
filter->getBlockSize());
return true;
}
}
return false;
}
//==============================================================================
VstInt32 getChunk (void** data, bool onlyStoreCurrentProgramData)
{
if (filter == 0)
return 0;
chunkMemory.setSize (0);
if (onlyStoreCurrentProgramData)
filter->getCurrentProgramStateInformation (chunkMemory);
else
filter->getStateInformation (chunkMemory);
*data = (void*) chunkMemory.getData();
// because the chunk is only needed temporarily by the host (or at least you'd
// hope so) we'll give it a while and then free it in the timer callback.
chunkMemoryTime = JUCE_NAMESPACE::Time::getApproximateMillisecondCounter();
return (VstInt32) chunkMemory.getSize();
}
VstInt32 setChunk (void* data, VstInt32 byteSize, bool onlyRestoreCurrentProgramData)
{
if (filter == 0)
return 0;
chunkMemory.setSize (0);
chunkMemoryTime = 0;
if (byteSize > 0 && data != 0)
{
if (onlyRestoreCurrentProgramData)
filter->setCurrentProgramStateInformation (data, byteSize);
else
filter->setStateInformation (data, byteSize);
}
return 0;
}
void timerCallback()
{
if (shouldDeleteEditor)
{
shouldDeleteEditor = false;
deleteEditor (true);
}
if (chunkMemoryTime > 0
&& chunkMemoryTime < JUCE_NAMESPACE::Time::getApproximateMillisecondCounter() - 2000
&& ! recursionCheck)
{
chunkMemoryTime = 0;
chunkMemory.setSize (0);
}
#if JUCE_MAC
if (hostWindow != 0)
checkWindowVisibility (hostWindow, editorComp);
#endif
tryMasterIdle();
}
void tryMasterIdle()
{
if (Component::isMouseButtonDownAnywhere()
&& ! recursionCheck)
{
const JUCE_NAMESPACE::uint32 now = JUCE_NAMESPACE::Time::getMillisecondCounter();
if (now > lastMasterIdleCall + 20 && editorComp != 0)
{
lastMasterIdleCall = now;
recursionCheck = true;
masterIdle();
recursionCheck = false;
}
}
}
void doIdleCallback()
{
// (wavelab calls this on a separate thread and causes a deadlock)..
if (MessageManager::getInstance()->isThisTheMessageThread()
&& ! recursionCheck)
{
recursionCheck = true;
juce_callAnyTimersSynchronously();
for (int i = ComponentPeer::getNumPeers(); --i >= 0;)
ComponentPeer::getPeer (i)->performAnyPendingRepaintsNow();
recursionCheck = false;
}
}
void createEditorComp()
{
if (hasShutdown || filter == 0)
return;
if (editorComp == 0)
{
AudioProcessorEditor* const ed = filter->createEditorIfNeeded();
if (ed != 0)
{
cEffect.flags |= effFlagsHasEditor;
ed->setOpaque (true);
ed->setVisible (true);
editorComp = new EditorCompWrapper (this, ed);
}
else
{
cEffect.flags &= ~effFlagsHasEditor;
}
}
shouldDeleteEditor = false;
}
void deleteEditor (bool canDeleteLaterIfModal)
{
PopupMenu::dismissAllActiveMenus();
jassert (! recursionCheck);
recursionCheck = true;
if (editorComp != 0)
{
Component* const modalComponent = Component::getCurrentlyModalComponent();
if (modalComponent != 0)
{
modalComponent->exitModalState (0);
if (canDeleteLaterIfModal)
{
shouldDeleteEditor = true;
recursionCheck = false;
return;
}
}
#if JUCE_MAC
if (hostWindow != 0)
{
detachComponentFromWindowRef (editorComp, hostWindow);
hostWindow = 0;
}
#endif
filter->editorBeingDeleted (editorComp->getEditorComp());
deleteAndZero (editorComp);
// there's some kind of component currently modal, but the host
// is trying to delete our plugin. You should try to avoid this happening..
jassert (Component::getCurrentlyModalComponent() == 0);
}
#if JUCE_LINUX
hostWindow = 0;
#endif
recursionCheck = false;
}
VstIntPtr dispatcher (VstInt32 opCode, VstInt32 index, VstIntPtr value, void* ptr, float opt)
{
if (hasShutdown)
return 0;
if (opCode == effEditIdle)
{
doIdleCallback();
return 0;
}
else if (opCode == effEditOpen)
{
checkWhetherWavelabHasChangedThread();
const MessageManagerLock mmLock;
jassert (! recursionCheck);
deleteEditor (true);
createEditorComp();
if (editorComp != 0)
{
editorComp->setOpaque (true);
editorComp->setVisible (false);
#if JUCE_WIN32
editorComp->addToDesktop (0);
hostWindow = (HWND) ptr;
HWND editorWnd = (HWND) editorComp->getWindowHandle();
SetParent (editorWnd, hostWindow);
DWORD val = GetWindowLong (editorWnd, GWL_STYLE);
val = (val & ~WS_POPUP) | WS_CHILD;
SetWindowLong (editorWnd, GWL_STYLE, val);
#elif JUCE_LINUX
editorComp->addToDesktop (0);
hostWindow = (Window) ptr;
Window editorWnd = (Window) editorComp->getWindowHandle();
XReparentWindow (display, editorWnd, hostWindow, 0, 0);
#else
hostWindow = attachComponentToWindowRef (editorComp, (WindowRef) ptr);
#endif
editorComp->setVisible (true);
return 1;
}
}
else if (opCode == effEditClose)
{
checkWhetherWavelabHasChangedThread();
const MessageManagerLock mmLock;
deleteEditor (true);
return 0;
}
else if (opCode == effEditGetRect)
{
checkWhetherWavelabHasChangedThread();
const MessageManagerLock mmLock;
createEditorComp();
if (editorComp != 0)
{
editorSize.left = 0;
editorSize.top = 0;
editorSize.right = editorComp->getWidth();
editorSize.bottom = editorComp->getHeight();
*((ERect**) ptr) = &editorSize;
return (VstIntPtr) (pointer_sized_int) &editorSize;
}
else
{
return 0;
}
}
return AudioEffectX::dispatcher (opCode, index, value, ptr, opt);
}
void resizeHostWindow (int newWidth, int newHeight)
{
if (editorComp != 0)
{
#if ! JUCE_LINUX // linux hosts shouldn't be trusted!
if (! (canHostDo (const_cast <char*> ("sizeWindow")) && sizeWindow (newWidth, newHeight)))
#endif
{
// some hosts don't support the sizeWindow call, so do it manually..
#if JUCE_MAC
setNativeHostWindowSize (hostWindow, editorComp, newWidth, newHeight);
#elif JUCE_LINUX
Window root;
int x, y;
unsigned int width, height, border, depth;
XGetGeometry (display, hostWindow, &root,
&x, &y, &width, &height, &border, &depth);
newWidth += (width + border) - editorComp->getWidth();
newHeight += (height + border) - editorComp->getHeight();
XResizeWindow (display, hostWindow, newWidth, newHeight);
#else
int dw = 0;
int dh = 0;
const int frameThickness = GetSystemMetrics (SM_CYFIXEDFRAME);
HWND w = (HWND) editorComp->getWindowHandle();
while (w != 0)
{
HWND parent = GetParent (w);
if (parent == 0)
break;
TCHAR windowType [32];
zeromem (windowType, sizeof (windowType));
GetClassName (parent, windowType, 31);
if (String (windowType).equalsIgnoreCase (T("MDIClient")))
break;
RECT windowPos;
GetWindowRect (w, &windowPos);
RECT parentPos;
GetWindowRect (parent, &parentPos);
SetWindowPos (w, 0, 0, 0,
newWidth + dw,
newHeight + dh,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER | SWP_NOOWNERZORDER);
dw = (parentPos.right - parentPos.left) - (windowPos.right - windowPos.left);
dh = (parentPos.bottom - parentPos.top) - (windowPos.bottom - windowPos.top);
w = parent;
if (dw == 2 * frameThickness)
break;
if (dw > 100 || dh > 100)
w = 0;
}
if (w != 0)
SetWindowPos (w, 0, 0, 0,
newWidth + dw,
newHeight + dh,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER | SWP_NOOWNERZORDER);
#endif
}
if (editorComp->getPeer() != 0)
editorComp->getPeer()->handleMovedOrResized();
}
}
//==============================================================================
juce_UseDebuggingNewOperator
private:
AudioProcessor* filter;
JUCE_NAMESPACE::MemoryBlock chunkMemory;
JUCE_NAMESPACE::uint32 chunkMemoryTime;
EditorCompWrapper* editorComp;
ERect editorSize;
MidiBuffer midiEvents;
VSTMidiEventList outgoingEvents;
bool isProcessing;
bool hasShutdown;
bool firstProcessCallback;
int diffW, diffH;
VstSpeakerArrangementType speakerIn, speakerOut;
int numInChans, numOutChans;
HeapBlock <float*> channels;
Array<float*> tempChannels; // see note in processReplacing()
bool hasCreatedTempChannels;
bool shouldDeleteEditor;
//==============================================================================
static PluginHostType& getHostType()
{
static PluginHostType hostType;
return hostType;
}
#if JUCE_WINDOWS // Workarounds for Wavelab's happy-go-lucky use of threads.
class NonWavelabMMLock
{
public:
NonWavelabMMLock() : mm (getHostType().isWavelab() ? 0 : new MessageManagerLock()) {}
~NonWavelabMMLock() {}
private:
ScopedPointer <MessageManagerLock> mm;
};
static void checkWhetherWavelabHasChangedThread()
{
if (getHostType().isWavelab())
MessageManager::getInstance()->setCurrentThreadAsMessageThread();
}
#else
typedef MessageManagerLock NonWavelabMMLock;
static void checkWhetherWavelabHasChangedThread() {}
#endif
//==============================================================================
void deleteTempChannels()
{
for (int i = tempChannels.size(); --i >= 0;)
juce_free (tempChannels.getUnchecked(i));
tempChannels.clear();
if (filter != 0)
tempChannels.insertMultiple (0, 0, filter->getNumInputChannels() + filter->getNumOutputChannels());
hasCreatedTempChannels = false;
}
const String getHostName()
{
char host[256];
zeromem (host, sizeof (host));
getHostProductString (host);
return host;
}
#if JUCE_MAC
void* hostWindow;
#elif JUCE_LINUX
Window hostWindow;
#else
HWND hostWindow;
#endif
};
//==============================================================================
void EditorCompWrapper::childBoundsChanged (Component* child)
{
child->setTopLeftPosition (0, 0);
const int cw = child->getWidth();
const int ch = child->getHeight();
wrapper->resizeHostWindow (cw, ch);
setSize (cw, ch);
#if JUCE_MAC
wrapper->resizeHostWindow (cw, ch); // (doing this a second time seems to be necessary in tracktion)
#endif
}
void EditorCompWrapper::handleAsyncUpdate()
{
wrapper->tryMasterIdle();
}
//==============================================================================
/** Somewhere in the codebase of your plugin, you need to implement this function
and make it create an instance of the filter subclass that you're building.
*/
extern AudioProcessor* JUCE_CALLTYPE createPluginFilter();
//==============================================================================
static AEffect* pluginEntryPoint (audioMasterCallback audioMaster)
{
initialiseJuce_GUI();
try
{
if (audioMaster (0, audioMasterVersion, 0, 0, 0, 0) != 0)
{
AudioProcessor* const filter = createPluginFilter();
if (filter != 0)
{
JuceVSTWrapper* const wrapper = new JuceVSTWrapper (audioMaster, filter);
return wrapper->getAeffect();
}
}
}
catch (...)
{}
return 0;
}
//==============================================================================
// Mac startup code..
#if JUCE_MAC
extern "C" __attribute__ ((visibility("default"))) AEffect* VSTPluginMain (audioMasterCallback audioMaster)
{
initialiseMac();
return pluginEntryPoint (audioMaster);
}
extern "C" __attribute__ ((visibility("default"))) AEffect* main_macho (audioMasterCallback audioMaster)
{
initialiseMac();
return pluginEntryPoint (audioMaster);
}
//==============================================================================
// Linux startup code..
#elif JUCE_LINUX
extern "C" AEffect* VSTPluginMain (audioMasterCallback audioMaster)
{
SharedMessageThread::getInstance();
return pluginEntryPoint (audioMaster);
}
extern "C" __attribute__ ((visibility("default"))) AEffect* main_plugin (audioMasterCallback audioMaster) asm ("main");
extern "C" __attribute__ ((visibility("default"))) AEffect* main_plugin (audioMasterCallback audioMaster)
{
return VSTPluginMain (audioMaster);
}
__attribute__((constructor)) void myPluginInit()
{
// don't put initialiseJuce_GUI here... it will crash !
}
__attribute__((destructor)) void myPluginFini()
{
// don't put shutdownJuce_GUI here... it will crash !
}
//==============================================================================
// Win32 startup code..
#else
extern "C" __declspec (dllexport) AEffect* VSTPluginMain (audioMasterCallback audioMaster)
{
return pluginEntryPoint (audioMaster);
}
#ifndef _WIN64 // (can't compile this on win64, but it's not needed anyway with VST2.4)
extern "C" __declspec (dllexport) void* main (audioMasterCallback audioMaster)
{
return (void*) pluginEntryPoint (audioMaster);
}
#endif
#if JucePlugin_Build_RTAS
BOOL WINAPI DllMainVST (HINSTANCE instance, DWORD dwReason, LPVOID)
#else
extern "C" BOOL WINAPI DllMain (HINSTANCE instance, DWORD dwReason, LPVOID)
#endif
{
if (dwReason == DLL_PROCESS_ATTACH)
PlatformUtilities::setCurrentModuleInstanceHandle (instance);
return TRUE;
}
#endif
#endif
View git blame Copy permalink