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Support factory programs in VST3 hosting

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This commit is contained in:
hogliux 2016-05-16 14:35:10 +01:00
parent 93a41cf743
commit f4086ad8f4
1 changed files with 96 additions and 9 deletions
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105
modules/juce_audio_processors/format_types/juce_VST3PluginFormat.cpp
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@ -694,8 +694,8 @@ public:
tresult PLUGIN_API notifyProgramListChange (Vst::ProgramListID, Steinberg::int32) override
{
jassertfalse;
return kResultFalse;
owner->syncProgramNames();
return kResultTrue;
}
//==============================================================================
@ -1594,6 +1594,7 @@ public:
: module (handle),
numInputAudioBusses (0),
numOutputAudioBusses (0),
programParameterID (-1),
inputParameterChanges (new ParamValueQueueList()),
outputParameterChanges (new ParamValueQueueList()),
midiInputs (new MidiEventList()),
@ -1663,6 +1664,7 @@ public:
grabInformationObjects();
synchroniseStates();
interconnectComponentAndController();
syncProgramNames();
setupIO();
return true;
}
@ -1951,16 +1953,22 @@ public:
}
//==============================================================================
int getNumPrograms() override { return getProgramListInfo (0).programCount; }
int getCurrentProgram() override { return 0; }
void setCurrentProgram (int) override {}
int getNumPrograms() override { return programNames.size(); }
const String getProgramName (int index) override { return programNames[index]; }
int getCurrentProgram() override { return jmax (0, (int) editController->getParamNormalized (programParameterID) * (programNames.size() - 1)); }
void changeProgramName (int, const String&) override {}
const String getProgramName (int index) override
void setCurrentProgram (int program) override
{
Vst::String128 result;
unitInfo->getProgramName (getProgramListInfo (0).id, index, result);
return toString (result);
if (programNames.size() > 0 && editController != nullptr)
{
Vst::ParamValue value =
static_cast<Vst::ParamValue> (program) / static_cast<Vst::ParamValue> (programNames.size());
editController->setParamNormalized (programParameterID, value);
Steinberg::int32 index;
inputParameterChanges->addParameterData (programParameterID, index)->addPoint (0, value, index);
}
}
//==============================================================================
@ -2167,6 +2175,9 @@ private:
VST3FloatAndDoubleBusMapComposite inputBusMap, outputBusMap;
Array<Vst::AudioBusBuffers> inputBusses, outputBusses;
StringArray programNames;
Vst::ParamID programParameterID;
//==============================================================================
template <typename Type>
static void appendStateFrom (XmlElement& head, ComSmartPtr<Type>& object, const String& identifier)
@ -2453,6 +2464,82 @@ private:
return paramInfo;
}
void syncProgramNames ()
{
programNames.clear();
if (processor == nullptr || editController == nullptr)
return;
Vst::UnitID programUnitID;
int stepCount;
Vst::ParameterInfo paramInfo = { 0 };
{
int idx, num = editController->getParameterCount();
for (idx = 0; idx < num; ++idx)
if (editController->getParameterInfo (idx, paramInfo) == kResultOk
&& (paramInfo.flags & Steinberg::Vst::ParameterInfo::kIsProgramChange) != 0)
break;
if (idx >= num) return;
programParameterID = paramInfo.id;
programUnitID = paramInfo.unitId;
stepCount = paramInfo.stepCount;
}
if (unitInfo != nullptr)
{
Vst::UnitInfo info = { 0 };
const int unitCount = unitInfo->getUnitCount();
for (int idx = 0; idx < unitCount; ++idx)
{
if (unitInfo->getUnitInfo(idx, info) == kResultOk
&& info.id == programUnitID)
{
const int programListCount = unitInfo->getProgramListCount();
for (int j = 0; j < programListCount; ++j)
{
Vst::ProgramListInfo programListInfo = { 0 };
if (unitInfo->getProgramListInfo (j, programListInfo) == kResultOk
&& programListInfo.id == info.programListId)
{
Vst::String128 name;
for (int k = 0; k < programListInfo.programCount; ++k)
if (unitInfo->getProgramName (programListInfo.id, k, name) == kResultOk)
programNames.add (toString (name));
return;
}
break;
}
break;
}
}
}
if (editController != nullptr
&& paramInfo.stepCount > 0)
{
const int numPrograms = paramInfo.stepCount + 1;
for (int i = 0; i < numPrograms; ++i)
{
Vst::String128 programName;
Vst::ParamValue valueNormalized = static_cast<Vst::ParamValue> (i) / static_cast<Vst::ParamValue> (paramInfo.stepCount);
if (editController->getParamStringByValue (paramInfo.id, valueNormalized, programName) == kResultOk)
programNames.add (toString (programName));
}
}
}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (VST3PluginInstance)
};