mirror of
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115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2015-2017 F4EXB //
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// written by Edouard Griffiths //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <QDebug>
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#include "dsp/devicesamplestatic.h"
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#include "dsp/devicesamplesource.h"
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DeviceSampleSource::DeviceSampleSource() :
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m_guiMessageQueue(0)
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{
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connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
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}
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DeviceSampleSource::~DeviceSampleSource()
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{
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}
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void DeviceSampleSource::handleInputMessages()
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{
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Message* message;
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while ((message = m_inputMessageQueue.pop()) != 0)
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{
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if (handleMessage(*message))
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{
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delete message;
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}
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}
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}
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qint64 DeviceSampleSource::calculateDeviceCenterFrequency(
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quint64 centerFrequency,
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qint64 transverterDeltaFrequency,
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int log2Decim,
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fcPos_t fcPos,
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quint32 devSampleRate,
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FrequencyShiftScheme frequencyShiftScheme,
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bool transverterMode)
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{
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return DeviceSampleStatic::calculateSourceDeviceCenterFrequency(
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centerFrequency,
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transverterDeltaFrequency,
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log2Decim,
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(DeviceSampleStatic::fcPos_t) fcPos,
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devSampleRate,
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(DeviceSampleStatic::FrequencyShiftScheme) frequencyShiftScheme,
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transverterMode
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);
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}
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qint64 DeviceSampleSource::calculateCenterFrequency(
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quint64 deviceCenterFrequency,
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qint64 transverterDeltaFrequency,
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int log2Decim,
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fcPos_t fcPos,
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quint32 devSampleRate,
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FrequencyShiftScheme frequencyShiftScheme,
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bool transverterMode)
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{
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return DeviceSampleStatic::calculateSourceCenterFrequency(
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deviceCenterFrequency,
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transverterDeltaFrequency,
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log2Decim,
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(DeviceSampleStatic::fcPos_t) fcPos,
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devSampleRate,
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(DeviceSampleStatic::FrequencyShiftScheme) frequencyShiftScheme,
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transverterMode
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);
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}
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/**
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* log2Decim = 0: no shift
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*
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* n = log2Decim <= 2: fc = +/- 1/2^(n-1)
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* center
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* | ^ |
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* | inf | sup |
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* ^ ^
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*
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* n = log2Decim > 2: fc = +/- 1/2^n
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* center
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* | ^ |
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* | |inf| | |sup| |
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* ^ ^
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*/
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qint32 DeviceSampleSource::calculateFrequencyShift(
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int log2Decim,
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fcPos_t fcPos,
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quint32 devSampleRate,
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FrequencyShiftScheme frequencyShiftScheme)
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{
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return DeviceSampleStatic::calculateSourceFrequencyShift(
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log2Decim,
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(DeviceSampleStatic::fcPos_t) fcPos,
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devSampleRate,
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(DeviceSampleStatic::FrequencyShiftScheme) frequencyShiftScheme
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);
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}
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