Initial release

engine/vendor/vst3sdk/public.sdk/samples/vst/common/voicebase.h

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+//-----------------------------------------------------------------------------
+// Project     : VST SDK
+//
+// Category    : Examples
+// Filename    : public.sdk/samples/vst/common/voicebase.h
+// Created by  : Steinberg, 02/2010
+// Description :
+//
+//-----------------------------------------------------------------------------
+// This file is part of a Steinberg SDK. It is subject to the license terms
+// in the LICENSE file found in the top-level directory of this distribution
+// and at www.steinberg.net/sdklicenses.
+// No part of the SDK, including this file, may be copied, modified, propagated,
+// or distributed except according to the terms contained in the LICENSE file.
+//-----------------------------------------------------------------------------
+
+#pragma once
+
+#include "base/source/fdebug.h"
+#include "pluginterfaces/vst/vsttypes.h"
+
+#ifdef DEBUG_LOG
+#undef DEBUG_LOG
+#endif
+
+#define DEBUG_LOG DEVELOPMENT
+
+namespace Steinberg {
+namespace Vst {
+
+//-----------------------------------------------------------------------------
+/** Example Voice class for the Steinberg::Vst::VoiceProcessorImplementation
+
+Implementation classes need to implement the following additional method:
+\code{.cpp}
+bool process (SamplePrecision* outputBuffers[numChannels], int32 numSamples);
+\endcode
+*/
+//-----------------------------------------------------------------------------
+template <uint32 numValues, class SamplePrecision, uint32 numChannels, class GlobalParameterStorage>
+class VoiceBase
+{
+public:
+	/** Returns the current note id of this voice. */
+	int32 getNoteId () const { return noteId; }
+
+	/** Sets a new GlobalParameterStorage. */
+	virtual void setGlobalParameterStorage (GlobalParameterStorage* globalParameters)
+	{
+		this->globalParameters = globalParameters;
+	}
+	/** Sets the sampleRate. */
+	virtual void setSampleRate (ParamValue sampleRate) { this->sampleRate = sampleRate; }
+	/** Returns the sampleRate. */
+	float getSampleRate () const { return (float)sampleRate; }
+
+	virtual void setNoteExpressionValue (int32 index, ParamValue value)
+	{
+		if (index < numValues)
+			values[index] = value;
+	}
+
+	virtual void noteOn (int32 pitch, ParamValue velocity, float tuning, int32 sampleOffset,
+	                     int32 noteId);
+	virtual void noteOff (ParamValue velocity, int32 sampleOffset);
+
+	virtual void reset ()
+	{
+		noteOnSampleOffset = -1;
+		noteOffSampleOffset = -1;
+		noteId = -1;
+		tuning = 0;
+	}
+
+//-----------------------------------------------------------------------------
+protected:
+	VoiceBase ();
+	VoiceBase (const VoiceBase& vb);
+	virtual ~VoiceBase ();
+
+	GlobalParameterStorage* globalParameters;
+
+	int32 noteId;
+	int32 pitch;
+	int32 noteOnSampleOffset;
+	int32 noteOffSampleOffset;
+	float tuning {0};
+
+	ParamValue sampleRate;
+	ParamValue noteOnVelocity;
+	ParamValue noteOffVelocity;
+	ParamValue values[numValues];
+};
+
+//-----------------------------------------------------------------------------
+template <uint32 numValues, class SamplePrecision, uint32 numChannels, class GlobalParameterStorage>
+VoiceBase<numValues, SamplePrecision, numChannels, GlobalParameterStorage>::VoiceBase ()
+: globalParameters (0)
+, noteId (-1)
+, pitch (-1)
+, noteOnSampleOffset (0)
+, noteOffSampleOffset (0)
+, sampleRate (44100.)
+, noteOnVelocity (0.)
+, noteOffVelocity (0.)
+, values {0}
+{
+}
+
+//-----------------------------------------------------------------------------
+template <uint32 numValues, class SamplePrecision, uint32 numChannels, class GlobalParameterStorage>
+VoiceBase<numValues, SamplePrecision, numChannels, GlobalParameterStorage>::VoiceBase (
+    const VoiceBase<numValues, SamplePrecision, numChannels, GlobalParameterStorage>& vb)
+: globalParameters (vb.globalParameters)
+, noteId (vb.noteId)
+, pitch (vb.pitch)
+, noteOnSampleOffset (vb.noteOnSampleOffset)
+, noteOffSampleOffset (vb.noteOffSampleOffset)
+, noteOnVelocity (vb.noteOnVelocity)
+, noteOffVelocity (vb.noteOffVelocity)
+, sampleRate (vb.sampleRate)
+{
+	for (uint32 i = 0; i < numValues; i++)
+		values[i] = vb.values[i];
+}
+
+//-----------------------------------------------------------------------------
+template <uint32 numValues, class SamplePrecision, uint32 numChannels, class GlobalParameterStorage>
+VoiceBase<numValues, SamplePrecision, numChannels, GlobalParameterStorage>::~VoiceBase ()
+{
+}
+
+//-----------------------------------------------------------------------------
+template <uint32 numValues, class SamplePrecision, uint32 numChannels, class GlobalParameterStorage>
+void VoiceBase<numValues, SamplePrecision, numChannels, GlobalParameterStorage>::noteOn (
+    int32 pitch, ParamValue velocity, float tuning, int32 sampleOffset, int32 nId)
+{
+	this->pitch = pitch;
+	noteOnVelocity = velocity;
+	noteOnSampleOffset = sampleOffset;
+	noteId = nId;
+	this->tuning = tuning;
+
+#if DEBUG_LOG
+	FDebugPrint ("NoteOn :%d\n", nId);
+#endif
+}
+
+//-----------------------------------------------------------------------------
+template <uint32 numValues, class SamplePrecision, uint32 numChannels, class GlobalParameterStorage>
+void VoiceBase<numValues, SamplePrecision, numChannels, GlobalParameterStorage>::noteOff (
+    ParamValue velocity, int32 sampleOffset)
+{
+	noteOffVelocity = velocity;
+	noteOffSampleOffset = sampleOffset;
+
+#if DEBUG_LOG
+	FDebugPrint ("NoteOff:%d\n", this->noteId);
+#endif
+}
+
+//------------------------------------------------------------------------
+} // namespace Vst
+} // namespace Steinberg