refactor: Move chunkware to third_party

third_party/chunkware_dsp/SimpleGate.cpp

@@ -0,0 +1,85 @@
+/*
+ *	Simple Gate (source)
+ *
+ *  File		: SimpleGate.cpp
+ *	Library		: SimpleSource
+ *  Version		: 1.12
+ *  Implements	: SimpleGate, SimpleGateRms
+ *
+ *	2006, ChunkWare Music Software, OPEN-SOURCE
+ *
+ *	Permission is hereby granted, free of charge, to any person obtaining a
+ *	copy of this software and associated documentation files (the "Software"),
+ *	to deal in the Software without restriction, including without limitation
+ *	the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *	and/or sell copies of the Software, and to permit persons to whom the
+ *	Software is furnished to do so, subject to the following conditions:
+ *
+ *	The above copyright notice and this permission notice shall be included in
+ *	all copies or substantial portions of the Software.
+ *
+ *	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *	THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ *	DEALINGS IN THE SOFTWARE.
+ */
+
+#include "SimpleGate.h"
+
+namespace chunkware_simple
+{
+	//-------------------------------------------------------------
+	SimpleGate::SimpleGate()
+		: AttRelEnvelope( 1.0, 100.0 )
+		, threshdB_( 0.0 )
+		, thresh_( 1.0 )
+		, env_( DC_OFFSET )
+	{
+	}
+
+	//-------------------------------------------------------------
+	void SimpleGate::setThresh( double dB )
+	{
+		threshdB_ = dB;
+		thresh_ = dB2lin( dB );
+	}
+
+	//-------------------------------------------------------------
+	void SimpleGate::initRuntime( void )
+	{
+		env_ = DC_OFFSET;
+	}
+
+	//-------------------------------------------------------------
+	// simple gate with RMS detection
+	//-------------------------------------------------------------
+	SimpleGateRms::SimpleGateRms()
+		: ave_( 5.0 )
+		, aveOfSqrs_( DC_OFFSET )
+	{
+	}
+
+	//-------------------------------------------------------------
+	void SimpleGateRms::setSampleRate( double sampleRate )
+	{
+		SimpleGate::setSampleRate( sampleRate );
+		ave_.setSampleRate( sampleRate );
+	}
+
+	//-------------------------------------------------------------
+	void SimpleGateRms::setWindow( double ms )
+	{
+		ave_.setTc( ms );
+	}
+
+	//-------------------------------------------------------------
+	void SimpleGateRms::initRuntime( void )
+	{
+		SimpleGate::initRuntime();
+		aveOfSqrs_ = DC_OFFSET;
+	}
+
+}	// end namespace chunkware_simple