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juce_VSTPluginFormat.cpp
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juce_VSTPluginFormat.cpp
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/*
==============================================================================
This file is part of the JUCE framework.
Copyright (c) Raw Material Software Limited
JUCE is an open source framework subject to commercial or open source
licensing.
By downloading, installing, or using the JUCE framework, or combining the
JUCE framework with any other source code, object code, content or any other
copyrightable work, you agree to the terms of the JUCE End User Licence
Agreement, and all incorporated terms including the JUCE Privacy Policy and
the JUCE Website Terms of Service, as applicable, which will bind you. If you
do not agree to the terms of these agreements, we will not license the JUCE
framework to you, and you must discontinue the installation or download
process and cease use of the JUCE framework.
JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
JUCE Privacy Policy: https://juce.com/juce-privacy-policy
JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
Or:
You may also use this code under the terms of the AGPLv3:
https://www.gnu.org/licenses/agpl-3.0.en.html
THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
==============================================================================
*/
#if JUCE_PLUGINHOST_VST
//==============================================================================
#undef PRAGMA_ALIGN_SUPPORTED
#if ! JUCE_MSVC
#define __cdecl
#endif
JUCE_BEGIN_IGNORE_WARNINGS_GCC_LIKE ("-Wzero-as-null-pointer-constant")
JUCE_BEGIN_IGNORE_WARNINGS_MSVC (4996)
#define VST_FORCE_DEPRECATED 0
#define JUCE_VSTINTERFACE_H_INCLUDED 1
namespace Vst2
{
struct AEffect;
// If the following files cannot be found then you are probably trying to host
// VST2 plug-ins. To do this you must have a VST2 SDK in your header search
// paths or use the "VST (Legacy) SDK Folder" field in the Projucer. The VST2
// SDK can be obtained from the vstsdk3610_11_06_2018_build_37 (or older) VST3
// SDK or JUCE version 5.3.2.
#include <pluginterfaces/vst2.x/aeffect.h>
#include <pluginterfaces/vst2.x/aeffectx.h>
}
#include "juce_VSTCommon.h"
JUCE_END_IGNORE_WARNINGS_GCC_LIKE
JUCE_END_IGNORE_WARNINGS_MSVC
JUCE_BEGIN_IGNORE_WARNINGS_GCC_LIKE ("-Wdeprecated-declarations")
JUCE_BEGIN_IGNORE_WARNINGS_MSVC (4355)
#include "juce_VSTMidiEventList.h"
#if ! JUCE_WINDOWS
static void _fpreset() {}
static void _clearfp() {}
#endif
#ifndef JUCE_VST_WRAPPER_LOAD_CUSTOM_MAIN
#define JUCE_VST_WRAPPER_LOAD_CUSTOM_MAIN
#endif
#ifndef JUCE_VST_WRAPPER_INVOKE_MAIN
#define JUCE_VST_WRAPPER_INVOKE_MAIN effect = module->moduleMain ((Vst2::audioMasterCallback) &audioMaster);
#endif
#ifndef JUCE_VST_FALLBACK_HOST_NAME
#define JUCE_VST_FALLBACK_HOST_NAME "Juce VST Host"
#endif
//==============================================================================
namespace juce
{
//==============================================================================
namespace
{
const int fxbVersionNum = 1;
struct fxProgram
{
int32 chunkMagic; // 'CcnK'
int32 byteSize; // of this chunk, excl. magic + byteSize
int32 fxMagic; // 'FxCk'
int32 version;
int32 fxID; // fx unique id
int32 fxVersion;
int32 numParams;
char prgName[28];
float params[1]; // variable no. of parameters
};
struct fxSet
{
int32 chunkMagic; // 'CcnK'
int32 byteSize; // of this chunk, excl. magic + byteSize
int32 fxMagic; // 'FxBk'
int32 version;
int32 fxID; // fx unique id
int32 fxVersion;
int32 numPrograms;
char future[128];
fxProgram programs[1]; // variable no. of programs
};
struct fxChunkSet
{
int32 chunkMagic; // 'CcnK'
int32 byteSize; // of this chunk, excl. magic + byteSize
int32 fxMagic; // 'FxCh', 'FPCh', or 'FBCh'
int32 version;
int32 fxID; // fx unique id
int32 fxVersion;
int32 numPrograms;
char future[128];
int32 chunkSize;
char chunk[8]; // variable
};
struct fxProgramSet
{
int32 chunkMagic; // 'CcnK'
int32 byteSize; // of this chunk, excl. magic + byteSize
int32 fxMagic; // 'FxCh', 'FPCh', or 'FBCh'
int32 version;
int32 fxID; // fx unique id
int32 fxVersion;
int32 numPrograms;
char name[28];
int32 chunkSize;
char chunk[8]; // variable
};
// Compares a magic value in either endianness.
static bool compareMagic (int32 magic, const char* name) noexcept
{
return magic == (int32) ByteOrder::littleEndianInt (name)
|| magic == (int32) ByteOrder::bigEndianInt (name);
}
static int32 fxbName (const char* name) noexcept { return (int32) ByteOrder::littleEndianInt (name); }
static int32 fxbSwap (int32 x) noexcept { return (int32) ByteOrder::swapIfLittleEndian ((uint32) x); }
static float fxbSwapFloat (const float x) noexcept
{
#ifdef JUCE_LITTLE_ENDIAN
union { uint32 asInt; float asFloat; } n;
n.asFloat = x;
n.asInt = ByteOrder::swap (n.asInt);
return n.asFloat;
#else
return x;
#endif
}
}
//==============================================================================
namespace
{
static double getVSTHostTimeNanoseconds() noexcept
{
#if JUCE_WINDOWS
return timeGetTime() * 1000000.0;
#elif JUCE_LINUX || JUCE_BSD || JUCE_IOS || JUCE_ANDROID
timeval micro;
gettimeofday (µ, nullptr);
return (double) micro.tv_usec * 1000.0;
#elif JUCE_MAC
UnsignedWide micro;
Microseconds (µ);
return micro.lo * 1000.0;
#endif
}
static int shellUIDToCreate = 0;
static int insideVSTCallback = 0;
struct IdleCallRecursionPreventer
{
IdleCallRecursionPreventer() : isMessageThread (MessageManager::getInstance()->isThisTheMessageThread())
{
if (isMessageThread)
++insideVSTCallback;
}
~IdleCallRecursionPreventer()
{
if (isMessageThread)
--insideVSTCallback;
}
const bool isMessageThread;
JUCE_DECLARE_NON_COPYABLE (IdleCallRecursionPreventer)
};
#if JUCE_MAC
static bool makeFSRefFromPath (FSRef* destFSRef, const String& path)
{
return FSPathMakeRef (reinterpret_cast<const UInt8*> (path.toRawUTF8()), destFSRef, nullptr) == noErr;
}
#endif
}
//==============================================================================
typedef Vst2::AEffect* (VSTCALLBACK *MainCall) (Vst2::audioMasterCallback);
static pointer_sized_int VSTCALLBACK audioMaster (Vst2::AEffect*, int32, int32, pointer_sized_int, void*, float);
//==============================================================================
// Change this to disable logging of various VST activities
#ifndef VST_LOGGING
#define VST_LOGGING 1
#endif
#if VST_LOGGING
#define JUCE_VST_LOG(a) Logger::writeToLog(a);
#else
#define JUCE_VST_LOG(a)
#endif
//==============================================================================
#if JUCE_LINUX || JUCE_BSD
namespace
{
using EventProcPtr = void (*)(XEvent*);
Window getChildWindow (Window windowToCheck)
{
Window rootWindow, parentWindow;
Window* childWindows;
unsigned int numChildren = 0;
X11Symbols::getInstance()->xQueryTree (XWindowSystem::getInstance()->getDisplay(),
windowToCheck, &rootWindow, &parentWindow, &childWindows, &numChildren);
if (numChildren > 0)
return childWindows [0];
return 0;
}
}
#endif
//==============================================================================
class VSTXMLInfo
{
public:
static VSTXMLInfo* createFor (const juce::XmlElement& xml)
{
if (xml.hasTagName ("VSTParametersStructure"))
return new VSTXMLInfo (xml);
if (const auto* x = xml.getChildByName ("VSTParametersStructure"))
return new VSTXMLInfo (*x);
return nullptr;
}
struct Group;
struct Base
{
Base() noexcept {}
virtual ~Base() {}
Group* parent = nullptr;
};
struct Param final : public Base
{
int paramID;
juce::String expr, name, label;
juce::StringArray shortNames;
juce::String type;
int numberOfStates;
float defaultValue;
};
struct Group final : public Base
{
juce::String name;
juce::OwnedArray<Base> paramTree;
};
struct Range
{
Range() noexcept {}
Range (const juce::String& s) { set (s); }
void set (const juce::String& s)
{
inclusiveLow = s.startsWithChar ('[');
inclusiveHigh = s.endsWithChar (']');
auto str = s.removeCharacters ("[]");
low = str.upToFirstOccurrenceOf (",", false, false).getFloatValue();
high = str.fromLastOccurrenceOf (",", false, false).getFloatValue();
}
bool contains (float f) const noexcept
{
return (inclusiveLow ? (f >= low) : (f > low))
&& (inclusiveHigh ? (f <= high) : (f < high));
}
float low = 0;
float high = 0;
bool inclusiveLow = false;
bool inclusiveHigh = false;
};
struct Entry
{
juce::String name;
Range range;
};
struct ValueType
{
juce::String name, label;
juce::OwnedArray<Entry> entries;
};
struct Template
{
juce::String name;
juce::OwnedArray<Param> params;
};
const Param* getParamForID (const int paramID, const Group* const grp) const
{
for (auto item : (grp != nullptr ? grp->paramTree : paramTree))
{
if (auto param = dynamic_cast<const Param*> (item))
if (param->paramID == paramID)
return param;
if (auto group = dynamic_cast<const Group*> (item))
if (auto res = getParamForID (paramID, group))
return res;
}
return nullptr;
}
const ValueType* getValueType (const juce::String& name) const
{
for (auto v : valueTypes)
if (v->name == name)
return v;
return nullptr;
}
juce::OwnedArray<Base> paramTree;
juce::OwnedArray<ValueType> valueTypes;
juce::OwnedArray<Template> templates;
ValueType switchValueType;
private:
VSTXMLInfo (const juce::XmlElement& xml)
{
switchValueType.entries.add (new Entry ({ TRANS ("Off"), Range ("[0, 0.5[") }));
switchValueType.entries.add (new Entry ({ TRANS ("On"), Range ("[0.5, 1]") }));
for (auto* item : xml.getChildIterator())
{
if (item->hasTagName ("Param")) parseParam (*item, nullptr, nullptr);
else if (item->hasTagName ("ValueType")) parseValueType (*item);
else if (item->hasTagName ("Template")) parseTemplate (*item);
else if (item->hasTagName ("Group")) parseGroup (*item, nullptr);
}
}
void parseParam (const juce::XmlElement& item, Group* group, Template* temp)
{
auto param = new Param();
if (temp != nullptr)
param->expr = item.getStringAttribute ("id");
else
param->paramID = item.getIntAttribute ("id");
param->name = item.getStringAttribute ("name");
param->label = item.getStringAttribute ("label");
param->type = item.getStringAttribute ("type");
param->numberOfStates = item.getIntAttribute ("numberOfStates");
param->defaultValue = (float) item.getDoubleAttribute ("defaultValue");
param->shortNames.addTokens (item.getStringAttribute ("shortName"), ",", juce::StringRef());
param->shortNames.trim();
param->shortNames.removeEmptyStrings();
if (group != nullptr)
{
group->paramTree.add (param);
param->parent = group;
}
else if (temp != nullptr)
{
temp->params.add (param);
}
else
{
paramTree.add (param);
}
}
void parseValueType (const juce::XmlElement& item)
{
auto vt = new ValueType();
valueTypes.add (vt);
vt->name = item.getStringAttribute ("name");
vt->label = item.getStringAttribute ("label");
int curEntry = 0;
const int numEntries = item.getNumChildElements();
for (auto* entryXml : item.getChildWithTagNameIterator ("Entry"))
{
auto entry = new Entry();
entry->name = entryXml->getStringAttribute ("name");
if (entryXml->hasAttribute ("value"))
{
entry->range.set (entryXml->getStringAttribute ("value"));
}
else
{
entry->range.low = (float) curEntry / (float) numEntries;
entry->range.high = (float) (curEntry + 1) / (float) numEntries;
entry->range.inclusiveLow = true;
entry->range.inclusiveHigh = (curEntry == numEntries - 1);
}
vt->entries.add (entry);
++curEntry;
}
}
void parseTemplate (const juce::XmlElement& item)
{
auto temp = new Template();
templates.add (temp);
temp->name = item.getStringAttribute ("name");
for (auto* param : item.getChildIterator())
parseParam (*param, nullptr, temp);
}
void parseGroup (const juce::XmlElement& item, Group* parentGroup)
{
auto group = new Group();
if (parentGroup)
{
parentGroup->paramTree.add (group);
group->parent = parentGroup;
}
else
{
paramTree.add (group);
}
group->name = item.getStringAttribute ("name");
if (item.hasAttribute ("template"))
{
juce::StringArray variables;
variables.addTokens (item.getStringAttribute ("values"), ";", juce::StringRef());
variables.trim();
for (auto temp : templates)
{
if (temp->name == item.getStringAttribute ("template"))
{
for (int i = 0; i < temp->params.size(); ++i)
{
auto param = new Param();
group->paramTree.add (param);
param->parent = group;
param->paramID = evaluate (temp->params[i]->expr, variables);
param->defaultValue = temp->params[i]->defaultValue;
param->label = temp->params[i]->label;
param->name = temp->params[i]->name;
param->numberOfStates = temp->params[i]->numberOfStates;
param->shortNames = temp->params[i]->shortNames;
param->type = temp->params[i]->type;
}
}
}
}
else
{
for (auto* subItem : item.getChildIterator())
{
if (subItem->hasTagName ("Param")) parseParam (*subItem, group, nullptr);
else if (subItem->hasTagName ("Group")) parseGroup (*subItem, group);
}
}
}
int evaluate (juce::String expr, const juce::StringArray& variables) const
{
juce::StringArray names;
juce::Array<int> vals;
for (auto& v : variables)
{
if (v.contains ("="))
{
names.add (v.upToFirstOccurrenceOf ("=", false, false));
vals.add (v.fromFirstOccurrenceOf ("=", false, false).getIntValue());
}
}
for (int i = 0; i < names.size(); ++i)
{
for (;;)
{
const int idx = expr.indexOfWholeWord (names[i]);
if (idx < 0)
break;
expr = expr.replaceSection (idx, names[i].length(), juce::String (vals[i]));
}
}
expr = expr.retainCharacters ("01234567890-+")
.replace ("+", " + ")
.replace ("-", " - ");
juce::StringArray tokens;
tokens.addTokens (expr, " ", juce::StringRef());
bool add = true;
int val = 0;
for (const auto& s : tokens)
{
if (s == "+")
{
add = true;
}
else if (s == "-")
{
add = false;
}
else
{
if (add)
val += s.getIntValue();
else
val -= s.getIntValue();
}
}
return val;
}
};
//==============================================================================
struct ModuleHandle final : public ReferenceCountedObject
{
File file;
MainCall moduleMain, customMain = {};
String pluginName;
std::unique_ptr<XmlElement> vstXml;
using Ptr = ReferenceCountedObjectPtr<ModuleHandle>;
static Array<ModuleHandle*>& getActiveModules()
{
static Array<ModuleHandle*> activeModules;
return activeModules;
}
//==============================================================================
static Ptr findOrCreateModule (const File& file)
{
for (auto* module : getActiveModules())
if (module->file == file)
return module;
const IdleCallRecursionPreventer icrp;
shellUIDToCreate = 0;
_fpreset();
JUCE_VST_LOG ("Attempting to load VST: " + file.getFullPathName());
Ptr m = new ModuleHandle (file, nullptr);
if (m->open())
{
_fpreset();
return m;
}
return {};
}
//==============================================================================
ModuleHandle (const File& f, MainCall customMainCall)
: file (f), moduleMain (customMainCall)
{
getActiveModules().add (this);
#if JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD || JUCE_IOS || JUCE_ANDROID
fullParentDirectoryPathName = f.getParentDirectory().getFullPathName();
#elif JUCE_MAC
FSRef ref;
makeFSRefFromPath (&ref, f.getParentDirectory().getFullPathName());
FSGetCatalogInfo (&ref, kFSCatInfoNone, nullptr, nullptr, &parentDirFSSpec, nullptr);
#endif
}
~ModuleHandle()
{
getActiveModules().removeFirstMatchingValue (this);
close();
}
//==============================================================================
#if ! JUCE_MAC
String fullParentDirectoryPathName;
#endif
#if JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD || JUCE_ANDROID
DynamicLibrary module;
bool open()
{
if (moduleMain != nullptr)
return true;
pluginName = file.getFileNameWithoutExtension();
module.open (file.getFullPathName());
moduleMain = (MainCall) module.getFunction ("VSTPluginMain");
if (moduleMain == nullptr)
moduleMain = (MainCall) module.getFunction ("main");
JUCE_VST_WRAPPER_LOAD_CUSTOM_MAIN
if (moduleMain != nullptr)
{
vstXml = parseXML (file.withFileExtension ("vstxml"));
#if JUCE_WINDOWS
if (vstXml == nullptr)
vstXml = parseXML (getDLLResource (file, "VSTXML", 1));
#endif
}
return moduleMain != nullptr;
}
void close()
{
_fpreset(); // (doesn't do any harm)
module.close();
}
void closeEffect (Vst2::AEffect* eff)
{
eff->dispatcher (eff, Vst2::effClose, 0, 0, nullptr, 0);
}
#if JUCE_WINDOWS
static String getDLLResource (const File& dllFile, const String& type, int resID)
{
DynamicLibrary dll (dllFile.getFullPathName());
auto dllModule = (HMODULE) dll.getNativeHandle();
if (dllModule != INVALID_HANDLE_VALUE)
{
if (auto res = FindResource (dllModule, MAKEINTRESOURCE (resID), type.toWideCharPointer()))
{
if (auto hGlob = LoadResource (dllModule, res))
{
auto* data = static_cast<const char*> (LockResource (hGlob));
return String::fromUTF8 (data, (int) SizeofResource (dllModule, res));
}
}
}
return {};
}
#endif
#else
Handle resHandle = {};
CFUniquePtr<CFBundleRef> bundleRef;
#if JUCE_MAC
CFBundleRefNum resFileId = {};
FSSpec parentDirFSSpec;
#endif
bool open()
{
if (moduleMain != nullptr)
return true;
bool ok = false;
if (file.hasFileExtension (".vst"))
{
auto* utf8 = file.getFullPathName().toRawUTF8();
if (auto url = CFUniquePtr<CFURLRef> (CFURLCreateFromFileSystemRepresentation (nullptr, (const UInt8*) utf8,
(CFIndex) strlen (utf8), file.isDirectory())))
{
bundleRef.reset (CFBundleCreate (kCFAllocatorDefault, url.get()));
if (bundleRef != nullptr)
{
if (CFBundleLoadExecutable (bundleRef.get()))
{
moduleMain = (MainCall) CFBundleGetFunctionPointerForName (bundleRef.get(), CFSTR ("main_macho"));
if (moduleMain == nullptr)
moduleMain = (MainCall) CFBundleGetFunctionPointerForName (bundleRef.get(), CFSTR ("VSTPluginMain"));
JUCE_VST_WRAPPER_LOAD_CUSTOM_MAIN
if (moduleMain != nullptr)
{
if (CFTypeRef name = CFBundleGetValueForInfoDictionaryKey (bundleRef.get(), CFSTR ("CFBundleName")))
{
if (CFGetTypeID (name) == CFStringGetTypeID())
{
char buffer[1024];
if (CFStringGetCString ((CFStringRef) name, buffer, sizeof (buffer), CFStringGetSystemEncoding()))
pluginName = buffer;
}
}
if (pluginName.isEmpty())
pluginName = file.getFileNameWithoutExtension();
#if JUCE_MAC
resFileId = CFBundleOpenBundleResourceMap (bundleRef.get());
#endif
ok = true;
auto vstXmlFiles = file
#if JUCE_MAC
.getChildFile ("Contents")
.getChildFile ("Resources")
#endif
.findChildFiles (File::findFiles, false, "*.vstxml");
if (! vstXmlFiles.isEmpty())
vstXml = parseXML (vstXmlFiles.getReference (0));
}
}
if (! ok)
{
CFBundleUnloadExecutable (bundleRef.get());
bundleRef = nullptr;
}
}
}
}
return ok;
}
void close()
{
if (bundleRef != nullptr)
{
#if JUCE_MAC
CFBundleCloseBundleResourceMap (bundleRef.get(), resFileId);
#endif
if (CFGetRetainCount (bundleRef.get()) == 1)
CFBundleUnloadExecutable (bundleRef.get());
if (CFGetRetainCount (bundleRef.get()) > 0)
bundleRef = nullptr;
}
}
void closeEffect (Vst2::AEffect* eff)
{
eff->dispatcher (eff, Vst2::effClose, 0, 0, nullptr, 0);
}
#endif
private:
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ModuleHandle)
};
static const int defaultVSTSampleRateValue = 44100;
static const int defaultVSTBlockSizeValue = 512;
JUCE_BEGIN_IGNORE_WARNINGS_MSVC (4996)
class TempChannelPointers
{
public:
template <typename T>
auto getArrayOfModifiableWritePointers (AudioBuffer<T>& buffer)
{
auto& pointers = getPointers (Tag<T>{});
jassert (buffer.getNumChannels() <= static_cast<int> (pointers.capacity()));
pointers.resize (jmax (pointers.size(), (size_t) buffer.getNumChannels()));
std::copy (buffer.getArrayOfWritePointers(),
buffer.getArrayOfWritePointers() + buffer.getNumChannels(),
pointers.begin());
return pointers.data();
}
private:
template <typename> struct Tag {};
auto& getPointers (Tag<float>) { return floatPointers; }
auto& getPointers (Tag<double>) { return doublePointers; }
std::vector<float*> floatPointers { 128 };
std::vector<double*> doublePointers { 128 };
};
//==============================================================================
struct VSTPluginInstance final : public AudioPluginInstance,
private Timer,
private AsyncUpdater
{
struct VSTParameter final : public Parameter
{
VSTParameter (VSTPluginInstance& parent,
const String& paramName,
const Array<String>& shortParamNames,
float paramDefaultValue,
const String& paramLabel,
bool paramIsAutomatable,
bool paramIsDiscrete,
int numParamSteps,
bool isBoolSwitch,
const StringArray& paramValueStrings,
const VSTXMLInfo::ValueType* paramValueType)
: pluginInstance (parent),
name (paramName),
shortNames (shortParamNames),
defaultValue (paramDefaultValue),
label (paramLabel),
automatable (paramIsAutomatable),
discrete (paramIsDiscrete),
numSteps (numParamSteps),
isSwitch (isBoolSwitch),
vstValueStrings (paramValueStrings),
valueType (paramValueType)
{
}
float getValue() const override
{
if (auto* effect = pluginInstance.vstEffect)
{
const ScopedLock sl (pluginInstance.lock);
return effect->getParameter (effect, getParameterIndex());
}
return 0.0f;
}
void setValue (float newValue) override
{
if (auto* effect = pluginInstance.vstEffect)
{
const ScopedLock sl (pluginInstance.lock);
if (! approximatelyEqual (effect->getParameter (effect, getParameterIndex()), newValue))
effect->setParameter (effect, getParameterIndex(), newValue);
}
}
String getText (float value, int maximumStringLength) const override
{
if (valueType != nullptr)
{
for (auto& v : valueType->entries)
if (v->range.contains (value))
return v->name;
}
return Parameter::getText (value, maximumStringLength);
}
float getValueForText (const String& text) const override
{
if (valueType != nullptr)
{
for (auto& v : valueType->entries)
if (v->name == text)
return (v->range.high + v->range.low) / 2.0f;
}
return Parameter::getValueForText (text);
}
String getCurrentValueAsText() const override
{
if (valueType != nullptr || ! vstValueStrings.isEmpty())
return getText (getValue(), 1024);
return pluginInstance.getTextForOpcode (getParameterIndex(), Vst2::effGetParamDisplay);
}
float getDefaultValue() const override
{
return defaultValue;
}
String getName (int maximumStringLength) const override
{
if (name.isEmpty())
return pluginInstance.getTextForOpcode (getParameterIndex(),
Vst2::effGetParamName);
if (name.length() <= maximumStringLength)
return name;
if (! shortNames.isEmpty())
{
for (auto& n : shortNames)
if (n.length() <= maximumStringLength)
return n;
return shortNames.getLast();
}
return name;
}
String getLabel() const override
{
return label.isEmpty() ? pluginInstance.getTextForOpcode (getParameterIndex(),
Vst2::effGetParamLabel)
: label;
}
bool isAutomatable() const override
{
return automatable;
}
bool isDiscrete() const override
{
return discrete;
}
bool isBoolean() const override
{
return isSwitch;
}
int getNumSteps() const override
{
return numSteps;
}