support VST host timing (Core.MIDI-1 clock/start/stop)

README.md

@@ -6,7 +6,8 @@
 + supports VST MIDI input 
 + supports up to 8 audio outputs
 + supports up to 8 audio inputs
-+ support VST program chunks (=> patches are saved with the DAW's project file or as .fxp files)
++ supports VST program chunks (=> patches are saved with the DAW's project file or as .fxp files)
++ supports VST host timing (audioMasterGetTime / kVstTempoValid / kVstTransportPlaying, see Core.MIDI-1 module)
 - does not support plugin DLLs due to VCV Rack's architecture which prevents this when it is run as a plugin itself
    - future releases may contain additional (open source) add-ons modules
 
@@ -21,7 +22,7 @@ Tested in
 # Downloads
 The current release can be found in the [vst2_bin/](vst2_bin/) folder.
 
-Here's a snapshot of it: [veeseevstrack_0_6_1_win64_bin-05Jul2018.7z](dist/veeseevstrack_0_6_1_win64_bin-05Jul2018.7z)
+Here's a snapshot of it: [veeseevstrack_0_6_1_win64_bin-06Jul2018.7z](dist/veeseevstrack_0_6_1_win64_bin-06Jul2018.7z)
 
 
 # Demo Video

src/Core/MIDIToCVInterface.cpp

@@ -1,3 +1,8 @@
+
+#ifdef USE_VST2
+extern void vst2_get_timing_info (int *_retPlaying, float *_retBPM, float *_retSongPosPPQ);
+#endif // USE_VST2
+
 #include "global_pre.hpp"
 #include "Core.hpp"
 #include "midi.hpp"
@@ -47,6 +52,10 @@ struct MIDIToCVInterface : Module {
 	PulseGenerator continuePulse;
 	int clock = 0;
 	int divisions[2];
+#ifdef USE_VST2
+   int b_vst_transport_playing = 0;
+   float vst_timing_clock_samples = 0.0f;
+#endif // USE_VST2
 
 	struct NoteData {
 		uint8_t velocity = 0;
@@ -100,6 +109,10 @@ struct MIDIToCVInterface : Module {
 		clock = 0;
 		divisions[0] = 24;
 		divisions[1] = 6;
+#ifdef USE_VST2
+      b_vst_transport_playing = 0;
+      vst_timing_clock_samples = 0.0f;
+#endif // USE_VST2
 	}
 
 	void pressNote(uint8_t note) {
@@ -141,6 +154,64 @@ struct MIDIToCVInterface : Module {
 		releaseNote(255);
 	}
 
+#ifdef USE_VST2
+   void handleVSTClock(void) {
+      // (note) calling this _per sample_ is quite excessive (but should not be a problem)
+      // (note) the VST host might not update this per sample, though
+      float songPosPPQ = -1.0f;
+      float bpm = -1.0f;
+      int bPlaying = 0;
+      vst2_get_timing_info(&bPlaying, &bpm, &songPosPPQ);
+      // printf("xxx songPosPPQ=%f bpm=%f bPlaying=%d\n", songPosPPQ, bpm, bPlaying);
+
+      if(b_vst_transport_playing ^ bPlaying)
+      {
+         if(bPlaying)
+         {
+            startPulse.trigger(1e-3);
+            clock = 0;
+            vst_timing_clock_samples = 0.0f;
+         }
+         else
+         {
+            stopPulse.trigger(1e-3);
+            // Reset timing
+            clock = 0;
+         }
+         b_vst_transport_playing = bPlaying;
+      }
+
+      if(bPlaying && (bpm > 0.0f))
+      {
+         float secondsPerQuarter = 60.0f / bpm;
+         // 24 clock ticks per quarter note (MIDI timing clock)
+         float samplesPerTimingClockTick = (engineGetSampleRate() * secondsPerQuarter) / 24.0f;
+
+         if (clock % divisions[0] == 0) {
+            clockPulses[0].trigger(1e-3);
+         }
+         if (clock % divisions[1] == 0) {
+            clockPulses[1].trigger(1e-3);
+         }
+
+         vst_timing_clock_samples += 1.0f;
+         if(vst_timing_clock_samples >= samplesPerTimingClockTick)
+         {
+            vst_timing_clock_samples -= samplesPerTimingClockTick;
+
+            // if(++clock < 0) clock = 0  (may be optimized away by a C compiler)
+            union {
+               int s;
+               unsigned int u;
+            } uclock;
+            uclock.s = clock;
+            uclock.u++;
+            clock = (uclock.s < 0) ? 0 : uclock.s;
+         }
+      } // if bPlaying
+   }
+#endif // USE_VST2
+
 	void step() override {
 		MidiMessage msg;
 		while (midiInput.shift(&msg)) {
@@ -148,6 +219,10 @@ struct MIDIToCVInterface : Module {
 		}
 		float deltaTime = engineGetSampleTime();
 
+#ifdef USE_VST2
+      handleVSTClock();
+#endif // USE_VST2
+
 		outputs[CV_OUTPUT].value = (lastNote - 60) / 12.f;
 		outputs[GATE_OUTPUT].value = gate ? 10.f : 0.f;
 		outputs[VELOCITY_OUTPUT].value = rescale(noteData[lastNote].velocity, 0, 127, 0.f, 10.f);
@@ -224,6 +299,7 @@ struct MIDIToCVInterface : Module {
 	}
 
 	void processSystem(MidiMessage msg) {
+#ifndef USE_VST2
 		switch (msg.channel()) {
 			// Timing
 			case 0x8: {
@@ -255,6 +331,9 @@ struct MIDIToCVInterface : Module {
 			} break;
 			default: break;
 		}
+#else
+      (void)msg;
+#endif // USE_VST2
 	}
 };
 

src/vst2_main.cpp

@@ -16,7 +16,7 @@
 ///   limitations under the License.
 ///
 /// created: 25Jun2018
-/// changed: 26Jun2018, 27Jun2018, 29Jun2018, 01Jul2018, 02Jul2018
+/// changed: 26Jun2018, 27Jun2018, 29Jun2018, 01Jul2018, 02Jul2018, 06Jul2018
 ///
 ///
 ///
@@ -771,7 +771,32 @@ public:
 
    void handleUIParam(int uniqueParamId, float normValue) {
       if(NULL != _vstHostCallback)
-         _vstHostCallback(&_vstPlugin, audioMasterAutomate, uniqueParamId, 0/*value*/, NULL/*ptr*/, normValue/*opt*/);
+         (void)_vstHostCallback(&_vstPlugin, audioMasterAutomate, uniqueParamId, 0/*value*/, NULL/*ptr*/, normValue/*opt*/);
+   }
+
+   void getTimingInfo(int *_retPlaying, float *_retBPM, float *_retSongPosPPQ) {
+      *_retPlaying = 0;
+
+      if(NULL != _vstHostCallback)
+      {
+         VstIntPtr result = _vstHostCallback(&_vstPlugin, audioMasterGetTime, 0, 0/*value*/, NULL/*ptr*/, 0.0f/*opt*/);
+         if(NULL != result)
+         {
+            const struct VstTimeInfo *timeInfo = (const struct VstTimeInfo *)result;
+
+            *_retPlaying = (0 != (timeInfo->flags & kVstTransportPlaying));
+
+            if(0 != (timeInfo->flags & kVstTempoValid))
+            {
+               *_retBPM = float(timeInfo->tempo);
+            }
+
+            if(0 != (timeInfo->flags & kVstPpqPosValid))
+            {
+               *_retSongPosPPQ = timeInfo->ppqPos;
+            }
+         }
+      }
    }
 
 private:
@@ -1587,6 +1612,11 @@ void vst2_handle_ui_param(int uniqueParamId, float normValue) {
    rack::global->vst2.wrapper->handleUIParam(uniqueParamId, normValue);
 }
 
+void vst2_get_timing_info(int *_retPlaying, float *_retBPM, float *_retSongPosPPQ) {
+   // updates the requested fields when query was successful
+   rack::global->vst2.wrapper->getTimingInfo(_retPlaying, _retBPM, _retSongPosPPQ);
+}
+
 #ifdef VST2_REPARENT_WINDOW_HACK
 #ifdef YAC_WIN32
 void vst2_maximize_reparented_window(void) {

vst2_bin/CHANGELOG_VST.txt

@@ -1,3 +1,8 @@
+** July 6th, 2018
+- Core.MIDI-1: support clock and start, stop signals
+   (host must implement audioMasterGetTime(7) and support kVstTempoValid + kVstTransportPlaying)
+
+
 ** July 5th, 2018
 - add module huaba.EQ3
 - add module huaba.ABBus

vst2_bin/README_vst2.txt

@@ -13,7 +13,8 @@ This is a quick'n'dirty adaption of VCV Rack 0.6.1 for the VST2 format.
 + supports VST MIDI input 
 + supports up to 8 audio outputs
 + supports up to 8 audio inputs
-+ support VST program chunks (=> patches are saved with the DAW's project file or as .fxp files)
++ supports VST program chunks (=> patches are saved with the DAW's project file or as .fxp files)
++ supports VST host timing (audioMasterGetTime / kVstTempoValid / kVstTransportPlaying, see Core.MIDI-1 module)
 - does not support plugin DLLs due to VCV Rack's architecture which prevents this when it is run as a plugin itself
    - future releases will contain additional (open source) add-ons modules
 

vst2_bin/log.txt

@@ -1,77 +1,66 @@
 [0.000 info src/main.cpp:63] VeeSeeVST Rack 0.6.1
-[0.000 info src/main.cpp:66] Global directory: f:\git\VeeSeeVSTRack\vst2_bin\/
-[0.000 info src/main.cpp:67] Local directory: f:\git\VeeSeeVSTRack\vst2_bin\/
-[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin AS 0.6.1
-[0.002 info src/plugin.cpp:618] vcvrack: Loaded static plugin AudibleInstruments 0.6.1
-[0.003 info src/plugin.cpp:618] vcvrack: Loaded static plugin Befaco 0.6.1
-[0.003 info src/plugin.cpp:618] vcvrack: Loaded static plugin Bogaudio 0.6.1
-[0.003 info src/plugin.cpp:618] vcvrack: Loaded static plugin cf 0.6.1
-[0.004 info src/plugin.cpp:618] vcvrack: Loaded static plugin ErraticInstruments 0.6.1
-[0.004 info src/plugin.cpp:618] vcvrack: Loaded static plugin ESeries 0.6.1
-[0.005 info src/plugin.cpp:618] vcvrack: Loaded static plugin Fundamental 0.6.1
-[0.005 info src/plugin.cpp:618] vcvrack: Loaded static plugin FrozenWasteland 0.6.1
-[0.006 info src/plugin.cpp:618] vcvrack: Loaded static plugin HetrickCV 0.6.1
-[0.006 info src/plugin.cpp:618] vcvrack: Loaded static plugin huaba 0.6.1
-[0.007 info src/plugin.cpp:618] vcvrack: Loaded static plugin Koralfx-Modules 0.6.1
-[0.007 info src/plugin.cpp:618] vcvrack: Loaded static plugin LindenbergResearch 0.6.1
-[0.008 info src/plugin.cpp:618] vcvrack: Loaded static plugin ML_modules 0.6.1
-[0.008 info src/plugin.cpp:618] vcvrack: Loaded static plugin Qwelk 0.6.1
-[0.009 info src/plugin.cpp:618] vcvrack: Loaded static plugin SonusModular 0.6.1
-[0.009 info src/plugin.cpp:618] vcvrack: Loaded static plugin squinkylabs-plug1 0.6.1
-[0.010 info src/plugin.cpp:618] vcvrack: Loaded static plugin SubmarineFree 0.6.1
-[0.010 info src/plugin.cpp:618] vcvrack: Loaded static plugin Template 0.6.1
-[0.011 info src/plugin.cpp:618] vcvrack: Loaded static plugin trowaSoft 0.6.1
-[0.011 info src/plugin.cpp:618] vcvrack: Loaded static plugin Valley 0.6.1
-[0.012 info src/plugin.cpp:618] vcvrack: Loaded static plugin VultModules 0.6.1
-[0.012 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\/res/icons/noun_146097_cc.svg
-[0.013 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\/res/icons/noun_31859_cc.svg
-[0.013 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\/res/icons/noun_1343816_cc.svg
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-[0.194 info src/window.cpp:703] Loaded font f:\git\VeeSeeVSTRack\vst2_bin\/res/fonts/DejaVuSans.ttf
-[0.297 info src/app/RackWidget.cpp:192] Loading patch from string
-[0.299 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\/res/Core/AudioInterface.svg
-[0.299 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\/res/ComponentLibrary/ScrewSilver.svg
-[0.300 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\/res/ComponentLibrary/PJ301M.svg
-[0.300 info src/window.cpp:703] Loaded font f:\git\VeeSeeVSTRack\vst2_bin\/res/fonts/ShareTechMono-Regular.ttf
-[0.301 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\/res/Core/MIDIToCVInterface.svg
-[0.304 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/Bogaudio/res/XCO.svg
-[0.304 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/Bogaudio/res/knob_68px.svg
-[0.305 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/Bogaudio/res/knob_16px.svg
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-[0.307 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/Bogaudio/res/slider_switch_2_14px_1.svg
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-[0.309 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\/res/ComponentLibrary/RoundLargeBlackKnob.svg
-[0.310 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/Fundamental/res/VCF.svg
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-[0.312 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/AS/res/ADSR.svg
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-[0.314 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/AS/res/as-PJ301M.svg
-[5.948 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/trigSeq.svg
-[5.949 info src/window.cpp:703] Loaded font f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/Fonts/Digital dream Fat.ttf
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-[5.950 info src/window.cpp:703] Loaded font f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/Fonts/larabieb.ttf
-[5.950 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/ComponentLibrary/TS_pad_btn_0.svg
-[5.951 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/ComponentLibrary/TS_pad_btn_1.svg
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-[5.952 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\/res/ComponentLibrary/LEDButton.svg
-[5.953 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/ComponentLibrary/TS_Port.svg
-[5.953 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/ComponentLibrary/TS_pad_0.svg
-[12.871 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/voltSeq.svg
-[17.842 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/cvOSCcv.svg
-[23.597 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/multiScope.svg
-[23.597 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/ComponentLibrary/TS_RoundBlackKnob_20.svg
-[28.057 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/multiOscillator.svg
-[28.058 info src/window.cpp:754] Loaded SVG f:\git\VeeSeeVSTRack\vst2_bin\plugins/trowaSoft/res/ComponentLibrary/TS_RoundBlackEncoder_20.svg
-[32.862 info src/app/RackWidget.cpp:154] Saving patch to string
+[0.000 info src/main.cpp:66] Global directory: F:\git\VeeSeeVSTRack\vst2_bin\/
+[0.000 info src/main.cpp:67] Local directory: F:\git\VeeSeeVSTRack\vst2_bin\/
+[0.000 info src/plugin.cpp:618] vcvrack: Loaded static plugin AS 0.6.1
+[0.000 info src/plugin.cpp:618] vcvrack: Loaded static plugin AudibleInstruments 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin Befaco 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin Bogaudio 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin cf 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin ErraticInstruments 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin ESeries 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin Fundamental 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin FrozenWasteland 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin HetrickCV 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin huaba 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin Koralfx-Modules 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin LindenbergResearch 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin ML_modules 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin Qwelk 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin SonusModular 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin squinkylabs-plug1 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin SubmarineFree 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin Template 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin trowaSoft 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin Valley 0.6.1
+[0.001 info src/plugin.cpp:618] vcvrack: Loaded static plugin VultModules 0.6.1
+[0.002 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\/res/icons/noun_146097_cc.svg
+[0.002 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\/res/icons/noun_31859_cc.svg
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+[0.253 info src/window.cpp:703] Loaded font F:\git\VeeSeeVSTRack\vst2_bin\/res/fonts/DejaVuSans.ttf
+[0.276 info src/app/RackWidget.cpp:154] Saving patch to string
+[0.567 info src/app/RackWidget.cpp:154] Saving patch to string
+[15.484 info src/app/RackWidget.cpp:154] Saving patch to string
+[66.347 info src/app/RackWidget.cpp:192] Loading patch from string
+[66.348 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\/res/Core/AudioInterface.svg
+[66.348 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\/res/ComponentLibrary/ScrewSilver.svg
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+[66.349 info src/window.cpp:703] Loaded font F:\git\VeeSeeVSTRack\vst2_bin\/res/fonts/ShareTechMono-Regular.ttf
+[66.350 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\/res/Core/MIDIToCVInterface.svg
+[66.352 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\plugins/Bogaudio/res/XCO.svg
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+[66.353 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\plugins/Bogaudio/res/slider_switch_2_14px_0.svg
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+[66.353 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\plugins/Fundamental/res/VCA.svg
+[66.354 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\/res/ComponentLibrary/RoundLargeBlackKnob.svg
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+[66.354 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\/res/ComponentLibrary/RoundHugeBlackKnob.svg
+[66.355 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\plugins/AS/res/ADSR.svg
+[66.356 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\plugins/AS/res/as-hexscrew.svg
+[66.356 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\plugins/AS/res/as-SlidePot.svg
+[66.356 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\plugins/AS/res/as-SlidePotHandle.svg
+[66.356 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\plugins/AS/res/as-PJ301M.svg
+[66.357 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\/res/Core/MIDITriggerToCVInterface.svg
+[66.358 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\plugins/Fundamental/res/SEQ3.svg
+[66.358 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\/res/ComponentLibrary/RoundBlackKnob.svg
+[66.358 info src/window.cpp:754] Loaded SVG F:\git\VeeSeeVSTRack\vst2_bin\/res/ComponentLibrary/LEDButton.svg