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DPF
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VST3: Create dummy buffer, setup for unused buses 

Signed-off-by: falkTX <falktx@falktx.com>
pull/365/head
falkTX 3 years ago
parent
96d5def58d
commit
bdf07598d8
Signed by: falkTX <falktx@falktx.com> GPG Key ID: CDBAA37ABC74FBA0
1 changed files with 49 additions and 42 deletions
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  1. +49
    -42
      distrho/src/DistrhoPluginVST3.cpp

+ 49
- 42
distrho/src/DistrhoPluginVST3.cpp View File

@@ -54,7 +54,7 @@
* - append MIDI input events in a sorted way
* == BUSES
* - bus arrangements
* - optional audio buses, create dummy buffer of max_block_size length for them
* - optional audio buses
* - routing info, do we care?
* - set sidechain bus name from port group
* == CV
@@ -263,6 +263,7 @@ public:
fParameterCount(fPlugin.getParameterCount()),
fVst3ParameterCount(fParameterCount + kVst3InternalParameterCount),
fCachedParameterValues(nullptr),
fDummyAudioBuffer(nullptr),
fParameterValuesChangedDuringProcessing(nullptr)
#if DISTRHO_PLUGIN_HAS_UI
, fParameterValueChangesForUI(nullptr)
@@ -371,18 +372,18 @@ public:
#endif
}

#if DISTRHO_PLUGIN_WANT_STATE
#if DISTRHO_PLUGIN_WANT_STATE
for (uint32_t i=0, count=fPlugin.getStateCount(); i<count; ++i)
{
const String& dkey(fPlugin.getStateKey(i));
fStateMap[dkey] = fPlugin.getStateDefaultValue(i);
}
#endif
#endif

#if !DISTRHO_PLUGIN_HAS_UI
#if !DISTRHO_PLUGIN_HAS_UI
// unused
return; (void)host;
#endif
#endif
}

~PluginVst3()
@@ -791,38 +792,38 @@ public:

d_stdout("found program '%s'", value.buffer());

#if DISTRHO_PLUGIN_WANT_PROGRAMS
#if DISTRHO_PLUGIN_WANT_PROGRAMS
const int program = std::atoi(value.buffer());
DISTRHO_SAFE_ASSERT_CONTINUE(program >= 0);

fCurrentProgram = static_cast<uint32_t>(program);
fPlugin.loadProgram(fCurrentProgram);

# if DISTRHO_PLUGIN_HAS_UI
#if DISTRHO_PLUGIN_HAS_UI
if (connectedToUI)
{
fParameterValueChangesForUI[kVst3InternalParameterProgram] = false;
sendParameterSetToUI(kVst3InternalParameterProgram, program);
}
# endif
#endif
#endif
#endif
}
else if (queryingType == 's')
{
d_stdout("found state '%s' '%s'", key.buffer(), value.buffer());

#if DISTRHO_PLUGIN_WANT_STATE
#if DISTRHO_PLUGIN_WANT_STATE
if (fPlugin.wantStateKey(key))
{
fStateMap[key] = value;
fPlugin.setState(key, value);

# if DISTRHO_PLUGIN_HAS_UI
#if DISTRHO_PLUGIN_HAS_UI
if (connectedToUI)
sendStateSetToUI(key, value);
# endif
#endif
}
#endif
#endif
}
else if (queryingType == 'p')
{
@@ -843,13 +844,13 @@ public:
fvalue = std::atof(value.buffer());

fCachedParameterValues[kVst3InternalParameterBaseCount + j] = fvalue;
#if DISTRHO_PLUGIN_HAS_UI
#if DISTRHO_PLUGIN_HAS_UI
if (connectedToUI)
{
// UI parameter updates are handled outside the read loop (after host param restart)
fParameterValueChangesForUI[kVst3InternalParameterBaseCount + j] = true;
}
#endif
#endif
fPlugin.setParameterValue(j, fvalue);
break;
}
@@ -865,7 +866,7 @@ public:
if (fComponentHandler != nullptr)
v3_cpp_obj(fComponentHandler)->restart_component(fComponentHandler, V3_RESTART_PARAM_VALUES_CHANGED);

#if DISTRHO_PLUGIN_HAS_UI
#if DISTRHO_PLUGIN_HAS_UI
if (connectedToUI)
{
for (uint32_t i=0; i<fParameterCount; ++i)
@@ -877,7 +878,7 @@ public:
fCachedParameterValues[kVst3InternalParameterBaseCount + i]);
}
}
#endif
#endif

return V3_OK;
}
@@ -885,11 +886,11 @@ public:
v3_result getState(v3_bstream** const stream)
{
const uint32_t paramCount = fPlugin.getParameterCount();
#if DISTRHO_PLUGIN_WANT_STATE
#if DISTRHO_PLUGIN_WANT_STATE
const uint32_t stateCount = fPlugin.getStateCount();
#else
#else
const uint32_t stateCount = 0;
#endif
#endif

if (stateCount == 0 && paramCount == 0)
{
@@ -898,18 +899,18 @@ public:
return v3_cpp_obj(stream)->write(stream, &buffer, 1, &ignored);
}

#if DISTRHO_PLUGIN_WANT_FULL_STATE
#if DISTRHO_PLUGIN_WANT_FULL_STATE
// Update current state
for (StringMap::const_iterator cit=fStateMap.begin(), cite=fStateMap.end(); cit != cite; ++cit)
{
const String& key = cit->first;
fStateMap[key] = fPlugin.getState(key);
}
#endif
#endif

String state;

#if DISTRHO_PLUGIN_WANT_PROGRAMS
#if DISTRHO_PLUGIN_WANT_PROGRAMS
{
String tmpStr("__dpf_program__\xff");
tmpStr += String(fCurrentProgram);
@@ -917,9 +918,9 @@ public:

state += tmpStr;
}
#endif
#endif

#if DISTRHO_PLUGIN_WANT_STATE
#if DISTRHO_PLUGIN_WANT_STATE
if (stateCount != 0)
{
state += "__dpf_state_begin__\xff";
@@ -941,7 +942,7 @@ public:

state += "__dpf_state_end__\xff";
}
#endif
#endif

if (paramCount != 0)
{
@@ -1015,11 +1016,11 @@ public:

uint32_t getLatencySamples() const noexcept
{
#if DISTRHO_PLUGIN_WANT_LATENCY
#if DISTRHO_PLUGIN_WANT_LATENCY
return fPlugin.getLatency();
#else
#else
return 0;
#endif
#endif
}

v3_result setupProcessing(v3_process_setup* const setup)
@@ -1048,7 +1049,7 @@ public:
if (active)
fPlugin.activate();

// TODO create dummy buffer of max_block_size length, to use for disabled buses
fDummyAudioBuffer = new float[setup->max_block_size];

return V3_OK;
}
@@ -1063,6 +1064,9 @@ public:
else
{
fPlugin.deactivateIfNeeded();

delete[] fDummyAudioBuffer;
fDummyAudioBuffer = nullptr;
}

return V3_OK;
@@ -1142,6 +1146,8 @@ public:
const float* inputs[DISTRHO_PLUGIN_NUM_INPUTS != 0 ? DISTRHO_PLUGIN_NUM_INPUTS : 1];
/* */ float* outputs[DISTRHO_PLUGIN_NUM_OUTPUTS != 0 ? DISTRHO_PLUGIN_NUM_OUTPUTS : 1];

std::memset(fDummyAudioBuffer, 0, sizeof(float)*data->nframes);

{
int32_t i = 0;
if (data->inputs != nullptr)
@@ -1153,7 +1159,7 @@ public:
}
}
for (; i < std::max(1, DISTRHO_PLUGIN_NUM_INPUTS); ++i)
inputs[i] = nullptr; // TODO use dummy buffer
inputs[i] = fDummyAudioBuffer;
}

{
@@ -1167,17 +1173,17 @@ public:
}
}
for (; i < std::max(1, DISTRHO_PLUGIN_NUM_OUTPUTS); ++i)
outputs[i] = nullptr; // TODO use dummy buffer
outputs[i] = fDummyAudioBuffer;
}

#if DISTRHO_PLUGIN_WANT_MIDI_OUTPUT
#if DISTRHO_PLUGIN_WANT_MIDI_OUTPUT
fHostEventOutputHandle = data->output_events;
#endif
#endif

#if DISTRHO_PLUGIN_WANT_MIDI_INPUT
#if DISTRHO_PLUGIN_WANT_MIDI_INPUT
uint32_t midiEventCount = 0;

# if DISTRHO_PLUGIN_HAS_UI
#if DISTRHO_PLUGIN_HAS_UI
while (fNotesRingBuffer.isDataAvailableForReading())
{
uint8_t midiData[3];
@@ -1192,7 +1198,7 @@ public:
if (midiEventCount == kMaxMidiEvents)
break;
}
# endif
#endif

if (v3_event_list** const eventptr = data->input_events)
{
@@ -1296,7 +1302,7 @@ public:
}
#endif
*/
#endif
#endif

// if there are any parameter changes at frame 0, set them here
if (v3_param_changes** const inparamsptr = data->input_params)
@@ -2167,6 +2173,7 @@ private:
const uint32_t fParameterCount;
const uint32_t fVst3ParameterCount; // full offset + real
float* fCachedParameterValues; // basic offset + real
float* fDummyAudioBuffer;
bool* fParameterValuesChangedDuringProcessing; // basic offset + real
#if DISTRHO_PLUGIN_HAS_UI
bool* fParameterValueChangesForUI; // basic offset + real
@@ -2248,9 +2255,9 @@ private:
}

fCachedParameterValues[kVst3InternalParameterBaseCount + i] = curValue;
#if DISTRHO_PLUGIN_HAS_UI
#if DISTRHO_PLUGIN_HAS_UI
fParameterValueChangesForUI[kVst3InternalParameterBaseCount + i] = true;
#endif
#endif

paramId = kVst3InternalParameterCount + i;
curValue = fPlugin.getParameterRanges(i).getNormalizedValue(curValue);
@@ -2259,7 +2266,7 @@ private:
break;
}

#if DISTRHO_PLUGIN_WANT_LATENCY
#if DISTRHO_PLUGIN_WANT_LATENCY
const uint32_t latency = fPlugin.getLatency();

if (fLastKnownLatency != latency)
@@ -2270,7 +2277,7 @@ private:
fCachedParameterValues[kVst3InternalParameterLatency]);
addParameterDataToHostOutputEvents(outparamsptr, kVst3InternalParameterLatency, curValue);
}
#endif
#endif
}

bool addParameterDataToHostOutputEvents(v3_param_changes** const outparamsptr,


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