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Test source: added sawtooth pattern

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This commit is contained in:
f4exb 2018-10-24 00:10:12 +02:00
parent 2958e1adba
commit faf428ed3d
5 changed files with 50 additions and 5 deletions
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7
plugins/samplesource/testsource/testsourcegui.ui
View File

@ -482,7 +482,12 @@
</item>
<item>
<property name="text">
<string>Pul</string>
<string>P0</string>
</property>
</item>
<item>
<property name="text">
<string>P1</string>
</property>
</item>
</widget>

9
plugins/samplesource/testsource/testsourceinput.cpp
View File

@ -354,8 +354,15 @@ bool TestSourceInput::applySettings(const TestSourceSettings& settings, bool for
if ((m_settings.m_modulation != settings.m_modulation) || force)
{
if (m_testSourceThread != 0) {
if (m_testSourceThread != 0)
{
m_testSourceThread->setModulation(settings.m_modulation);
if (settings.m_modulation == TestSourceSettings::ModulationPattern0) {
m_testSourceThread->setPattern0();
} else if (settings.m_modulation == TestSourceSettings::ModulationPattern1) {
m_testSourceThread->setPattern1();
}
}
}

3
plugins/samplesource/testsource/testsourcesettings.h
View File

@ -37,7 +37,8 @@ struct TestSourceSettings {
ModulationNone,
ModulationAM,
ModulationFM,
ModulationPulse,
ModulationPattern0,
ModulationPattern1,
ModulationLast
} Modulation;

34
plugins/samplesource/testsource/testsourcethread.cpp
View File

@ -267,7 +267,7 @@ void TestSourceThread::generate(quint32 chunksize)
m_buf[i++] = (int16_t) (im * (float) m_amplitudeBitsQ);
}
break;
case TestSourceSettings::ModulationPulse:
case TestSourceSettings::ModulationPattern0: // binary pattern
{
if (m_pulseSampleCount < m_pulseWidth) // sync pattern: 0
{
@ -288,7 +288,7 @@ void TestSourceThread::generate(quint32 chunksize)
{
uint32_t patPulseSampleCount = m_pulseSampleCount - 3*m_pulseWidth;
uint32_t patPulseIndex = patPulseSampleCount / m_pulseWidth;
float patFigure = (m_pulsePatternCount & (1<<patPulseIndex)) != 0 ? 0.1 : 0.0; // make binary pattern -20dB vs sync pattern
float patFigure = (m_pulsePatternCount & (1<<patPulseIndex)) != 0 ? 0.3 : 0.0; // make binary pattern ~-10dB vs sync pattern
m_buf[i++] = (int16_t) (patFigure * (float) m_amplitudeBitsI) + m_amplitudeBitsDC;
m_buf[i++] = (int16_t) (patFigure * (float) m_phaseImbalance * m_amplitudeBitsQ);
}
@ -309,6 +309,21 @@ void TestSourceThread::generate(quint32 chunksize)
}
}
break;
case TestSourceSettings::ModulationPattern1: // sawtooth pattern
{
Real re, im;
re = (float) (m_pulseWidth - m_pulseSampleCount) / (float) m_pulseWidth;
im = m_phaseImbalance*re;
m_buf[i++] = (int16_t) (re * (float) m_amplitudeBitsI) + m_amplitudeBitsDC;
m_buf[i++] = (int16_t) (im * (float) m_amplitudeBitsQ);
if (m_pulseSampleCount < m_pulseWidth - 1) {
m_pulseSampleCount++;
} else {
m_pulseSampleCount = 0;
}
}
break;
case TestSourceSettings::ModulationNone:
default:
{
@ -389,3 +404,18 @@ void TestSourceThread::handleInputMessages()
}
}
}
void TestSourceThread::setPattern0()
{
m_pulseWidth = 150;
m_pulseSampleCount = 0;
m_pulsePatternCount = 0;
m_pulsePatternCycle = 8;
m_pulsePatternPlaces = 3;
}
void TestSourceThread::setPattern1()
{
m_pulseWidth = 1000;
m_pulseSampleCount = 0;
}

2
plugins/samplesource/testsource/testsourcethread.h
View File

@ -75,6 +75,8 @@ public:
void setModulation(TestSourceSettings::Modulation modulation);
void setAMModulation(float amModulation);
void setFMDeviation(float deviation);
void setPattern0();
void setPattern1();
private:
QMutex m_startWaitMutex;