Initial code check in continued

src/buffer/ComplexCircularBuffer.java

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+/*******************************************************************************
+ *     SDR Trunk 
+ *     Copyright (C) 2014 Dennis Sheirer
+ * 
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ * 
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ * 
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>
+ ******************************************************************************/
+package buffer;
+
+import java.util.Arrays;
+
+import sample.complex.ComplexSample;
+
+/**
+ * Circular sample buffer - allocates a buffer and stores samples in a circular
+ * fashion, overwriting older samples with newly arrived samples.  Initially
+ * fills buffer with 0-valued samples
+ * 
+ * Can be used as a delay-type buffer, to delay samples by the 'size' amount
+ */
+public class ComplexCircularBuffer
+{
+	ComplexSample[] mBuffer;
+	int mBufferPointer = 0;
+	
+	public ComplexCircularBuffer( int size )
+	{
+		mBuffer = new ComplexSample[ size ];
+		
+		Arrays.fill( mBuffer, new ComplexSample( 1.0f, 1.0f ) );
+	}
+
+	/**
+	 * Returns the sample currently pointed to in the buffer and stores the 
+	 * new sample in its place
+	 * @param sample
+	 * @return
+	 */
+	public ComplexSample get( ComplexSample sample )
+	{
+		ComplexSample retVal = mBuffer[ mBufferPointer ];
+
+		put( sample );
+
+		return retVal;
+	}
+	
+	public void put( ComplexSample sample )
+	{
+		mBuffer[ mBufferPointer ] = sample;
+
+		mBufferPointer++;
+		
+		if( mBufferPointer >= mBuffer.length )
+		{
+			mBufferPointer = 0;
+		}
+	}
+	
+	public ComplexSample[] get( int count )
+	{
+		ComplexSample[] samples = new ComplexSample[ count ];
+		
+		int tempCounter = mBufferPointer;
+
+		for( int x = 0; x < count; x++ )
+		{
+			samples[ x ] = mBuffer[ tempCounter ];
+			
+			tempCounter++;
+			
+			if( tempCounter > mBuffer.length - 1 )
+			{
+				tempCounter = 0;
+			}
+		}
+		
+		return samples;
+	}
+}