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/*
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Her Majesty the Queen in Right of Canada (Communications Research
Center Canada)
*/
/*
This file is part of CRC-DADMOD.
CRC-DADMOD 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.
CRC-DADMOD 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 CRC-DADMOD. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GAIN_CONTROL_H
#define GAIN_CONTROL_H
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "ModCodec.h"
#include <sys/types.h>
#include <complex>
#ifdef __SSE__
# include <xmmintrin.h>
#endif
typedef std::complex<float> complexf;
enum GainMode { GAIN_FIX, GAIN_MAX, GAIN_VAR };
class GainControl : public ModCodec
{
public:
GainControl(size_t frameSize, GainMode mode = GAIN_VAR, float factor = 1.0f);
virtual ~GainControl();
GainControl(const GainControl&);
GainControl& operator=(const GainControl&);
int process(Buffer* const dataIn, Buffer* dataOut);
const char* name() { return "GainControl"; }
protected:
size_t d_frameSize;
float d_factor;
#ifdef __SSE__
__m128 (*computeGain)(const __m128* in, size_t sizeIn);
__m128 static computeGainFix(const __m128* in, size_t sizeIn);
__m128 static computeGainMax(const __m128* in, size_t sizeIn);
__m128 static computeGainVar(const __m128* in, size_t sizeIn);
#else // !__SSE__
float (*computeGain)(const complexf* in, size_t sizeIn);
float static computeGainFix(const complexf* in, size_t sizeIn);
float static computeGainMax(const complexf* in, size_t sizeIn);
float static computeGainVar(const complexf* in, size_t sizeIn);
#endif // __SSE__
};
#endif // GAIN_CONTROL_H
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