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Bela: Support for analog inputs

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This commit is contained in:
Cesare Ferrari 2019-08-30 19:21:25 +01:00
parent c80285463a
commit fab1442ceb
1 changed files with 48 additions and 1 deletions
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49
modules/juce_audio_devices/native/juce_linux_Bela.cpp
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@ -89,6 +89,11 @@ public:
return devices;
}
void pushMidiMessage (juce::MidiMessage& message)
{
concatenator.pushMidiData (message.getRawData(), message.getRawDataSize(), Time::getMillisecondCounter() * 0.001, midiInput, *midiCallback);
}
private:
void pushMidiData (int length)
{
@ -182,6 +187,9 @@ public:
BelaAudioIODevice::belaTypeName)
{
Bela_defaultSettings (&defaultSettings);
if (includeAnalogSupport)
analogInputs.resize (8);
}
~BelaAudioIODevice()
@ -213,7 +221,7 @@ public:
auto numIns = getNumContiguousSetBits (inputChannels);
auto numOuts = getNumContiguousSetBits (outputChannels);
settings.useAnalog = 0;
settings.useAnalog = includeAnalogSupport ? 1 : 0;
settings.useDigital = 0;
settings.numAudioInChannels = numIns;
settings.numAudioOutChannels = numOuts;
@ -353,6 +361,7 @@ public:
static const char* const belaTypeName;
private:
//==============================================================================
bool setup (BelaContext& context)
{
@ -377,6 +386,9 @@ private:
ScopedLock lock (callbackLock);
if (includeAnalogSupport)
updateAnalogInputs (context);
// Check for and process and midi
for (auto midiInput : BelaMidiInput::midiInputs)
midiInput->poll();
@ -448,6 +460,39 @@ private:
callback->audioDeviceStopped();
}
void updateAnalogInputs (BelaContext& context)
{
for (size_t i = 0; i < 8; i++)
{
auto v = analogRead (&context, 0, static_cast<int> (i));
if (fabs (analogInputs[i].previousInput - v) > 1.0f/512.0f)
{
auto controlValue = int (v * 127.0);
if (analogInputs[i].previousControlValue != controlValue)
{
// Consider this to have moved
analogInputs[i].previousInput = v;
analogInputs[i].previousControlValue = controlValue;
auto message = MidiMessage::controllerEvent (1, 16 + i, controlValue);
for (auto midiInput : BelaMidiInput::midiInputs)
midiInput->pushMidiMessage (message);
}
}
}
}
struct AnalogInput
{
float previousInput = 0;
int previousControlValue = 0;
};
std::vector<AnalogInput> analogInputs;
//==============================================================================
uint64_t expectedElapsedAudioSamples = 0;
@ -494,6 +539,8 @@ private:
HeapBlock<const float*> channelInBuffer;
HeapBlock<float*> channelOutBuffer;
bool includeAnalogSupport = true;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (BelaAudioIODevice)
};