mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-23 08:28:36 -05:00
334 lines
8.4 KiB
C++
334 lines
8.4 KiB
C++
#include "dsp/scopevis.h"
|
|
#include "gui/glscope.h"
|
|
#include "dsp/dspcommands.h"
|
|
#include "util/messagequeue.h"
|
|
#include <algorithm>
|
|
|
|
#include <QDebug>
|
|
|
|
MESSAGE_CLASS_DEFINITION(ScopeVis::MsgConfigureScopeVis, Message)
|
|
|
|
const uint ScopeVis::m_traceChunkSize = 4800;
|
|
|
|
ScopeVis::ScopeVis(GLScope* glScope) :
|
|
m_glScope(glScope),
|
|
m_tracebackCount(0),
|
|
m_fill(0),
|
|
m_triggerState(Untriggered),
|
|
m_triggerChannel(TriggerFreeRun),
|
|
m_triggerLevel(0.0),
|
|
m_triggerPositiveEdge(true),
|
|
m_triggerBothEdges(false),
|
|
m_triggerPre(0),
|
|
m_triggerDelay(0),
|
|
m_triggerDelayCount(0),
|
|
m_triggerOneShot(false),
|
|
m_armed(false),
|
|
m_sampleRate(0)
|
|
{
|
|
setObjectName("ScopeVis");
|
|
m_trace.reserve(100*m_traceChunkSize);
|
|
m_trace.resize(20*m_traceChunkSize);
|
|
m_traceback.resize(20*m_traceChunkSize);
|
|
}
|
|
|
|
ScopeVis::~ScopeVis()
|
|
{
|
|
}
|
|
|
|
void ScopeVis::configure(MessageQueue* msgQueue,
|
|
TriggerChannel triggerChannel,
|
|
Real triggerLevel,
|
|
bool triggerPositiveEdge,
|
|
bool triggerBothEdges,
|
|
uint triggerPre,
|
|
uint triggerDelay,
|
|
uint traceSize)
|
|
{
|
|
Message* cmd = MsgConfigureScopeVis::create(triggerChannel,
|
|
triggerLevel,
|
|
triggerPositiveEdge,
|
|
triggerBothEdges,
|
|
triggerPre,
|
|
triggerDelay,
|
|
traceSize);
|
|
msgQueue->push(cmd);
|
|
}
|
|
|
|
void ScopeVis::feed(const SampleVector::const_iterator& cbegin, const SampleVector::const_iterator& end, bool positiveOnly)
|
|
{
|
|
SampleVector::const_iterator begin(cbegin);
|
|
|
|
if (m_triggerChannel == TriggerFreeRun) {
|
|
m_triggerPoint = begin;
|
|
}
|
|
else if (m_triggerState == Triggered) {
|
|
m_triggerPoint = begin;
|
|
}
|
|
else if (m_triggerState == Untriggered) {
|
|
m_triggerPoint = end;
|
|
}
|
|
else if (m_triggerState == WaitForReset) {
|
|
m_triggerPoint = end;
|
|
}
|
|
else {
|
|
m_triggerPoint = begin;
|
|
}
|
|
|
|
while(begin < end)
|
|
{
|
|
if (m_triggerChannel == TriggerFreeRun)
|
|
{
|
|
int count = end - begin;
|
|
|
|
if(count > (int)(m_trace.size() - m_fill))
|
|
{
|
|
count = m_trace.size() - m_fill;
|
|
}
|
|
|
|
std::vector<Complex>::iterator it = m_trace.begin() + m_fill;
|
|
|
|
for(int i = 0; i < count; ++i)
|
|
{
|
|
*it++ = Complex(begin->real() / 32768.0f, begin->imag() / 32768.0f);
|
|
++begin;
|
|
}
|
|
|
|
m_fill += count;
|
|
|
|
if(m_fill >= m_trace.size())
|
|
{
|
|
m_glScope->newTrace(m_trace, m_sampleRate);
|
|
m_fill = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(m_triggerState == WaitForReset)
|
|
{
|
|
break;
|
|
}
|
|
if(m_triggerState == Config)
|
|
{
|
|
m_glScope->newTrace(m_trace, m_sampleRate); // send a dummy trace
|
|
m_triggerState = Untriggered;
|
|
}
|
|
if(m_triggerState == Delay)
|
|
{
|
|
int count = end - begin;
|
|
if (count > (int)(m_trace.size() - m_fill))
|
|
{
|
|
count = m_trace.size() - m_fill;
|
|
}
|
|
begin += count;
|
|
m_fill += count;
|
|
if(m_fill >= m_trace.size())
|
|
{
|
|
m_fill = 0;
|
|
m_triggerDelayCount--;
|
|
if (m_triggerDelayCount == 0)
|
|
{
|
|
m_triggerState = Triggered;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(m_triggerState == Untriggered)
|
|
{
|
|
while(begin < end)
|
|
{
|
|
bool triggerCdt = triggerCondition(begin);
|
|
|
|
if (m_tracebackCount > m_triggerPre)
|
|
{
|
|
bool trigger;
|
|
|
|
if (m_triggerBothEdges) {
|
|
trigger = m_prevTrigger ^ triggerCdt;
|
|
} else {
|
|
trigger = triggerCdt ^ !m_triggerPositiveEdge;
|
|
}
|
|
|
|
if (trigger)
|
|
{
|
|
if (m_armed)
|
|
{
|
|
m_armed = false;
|
|
if (m_triggerDelay > 0)
|
|
{
|
|
m_triggerDelayCount = m_triggerDelay;
|
|
m_fill = 0;
|
|
m_triggerState = Delay;
|
|
}
|
|
else
|
|
{
|
|
m_triggerState = Triggered;
|
|
m_triggerPoint = begin;
|
|
// fill beginning of m_trace with delayed samples from the trace memory FIFO. Increment m_fill accordingly.
|
|
if (m_triggerPre) { // do this process only if there is a pre-trigger delay
|
|
std::copy(m_traceback.end() - m_triggerPre - 1, m_traceback.end() - 1, m_trace.begin());
|
|
m_fill = m_triggerPre; // Increment m_fill accordingly (from 0).
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
m_armed = true;
|
|
}
|
|
}
|
|
m_prevTrigger = triggerCdt;
|
|
++begin;
|
|
}
|
|
}
|
|
|
|
if(m_triggerState == Triggered)
|
|
{
|
|
int count = end - begin;
|
|
|
|
if(count > (int)(m_trace.size() - m_fill))
|
|
{
|
|
count = m_trace.size() - m_fill;
|
|
}
|
|
|
|
std::vector<Complex>::iterator it = m_trace.begin() + m_fill;
|
|
|
|
for(int i = 0; i < count; ++i)
|
|
{
|
|
*it++ = Complex(begin->real() / 32768.0f, begin->imag() / 32768.0f);
|
|
++begin;
|
|
}
|
|
|
|
m_fill += count;
|
|
|
|
if(m_fill >= m_trace.size())
|
|
{
|
|
m_glScope->newTrace(m_trace, m_sampleRate);
|
|
m_fill = 0;
|
|
|
|
if (m_triggerOneShot) {
|
|
m_triggerState = WaitForReset;
|
|
} else {
|
|
m_tracebackCount = 0;
|
|
m_triggerState = Untriggered;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void ScopeVis::start()
|
|
{
|
|
}
|
|
|
|
void ScopeVis::stop()
|
|
{
|
|
}
|
|
|
|
bool ScopeVis::handleMessage(const Message& message)
|
|
{
|
|
qDebug() << "ScopeVis::handleMessage";
|
|
|
|
if (DSPSignalNotification::match(message))
|
|
{
|
|
DSPSignalNotification& notif = (DSPSignalNotification&) message;
|
|
m_sampleRate = notif.getSampleRate();
|
|
qDebug() << " - DSPSignalNotification: m_sampleRate: " << m_sampleRate;
|
|
|
|
return true;
|
|
}
|
|
else if (MsgConfigureScopeVis::match(message))
|
|
{
|
|
MsgConfigureScopeVis& conf = (MsgConfigureScopeVis&) message;
|
|
|
|
m_tracebackCount = 0;
|
|
m_triggerState = Config;
|
|
m_triggerChannel = (TriggerChannel) conf.getTriggerChannel();
|
|
m_triggerLevel = conf.getTriggerLevel();
|
|
m_triggerPositiveEdge = conf.getTriggerPositiveEdge();
|
|
m_triggerBothEdges = conf.getTriggerBothEdges();
|
|
m_triggerPre = conf.getTriggerPre();
|
|
|
|
if (m_triggerPre >= m_traceback.size())
|
|
{
|
|
m_triggerPre = m_traceback.size() - 1; // top sample in FIFO is always the triggering one (pre-trigger delay = 0)
|
|
}
|
|
|
|
m_triggerDelay = conf.getTriggerDelay();
|
|
uint newSize = conf.getTraceSize();
|
|
|
|
if (newSize != m_trace.size())
|
|
{
|
|
m_trace.resize(newSize);
|
|
}
|
|
|
|
if (newSize > m_traceback.size()) // fitting the exact required space is not a requirement for the back trace
|
|
{
|
|
m_traceback.resize(newSize);
|
|
}
|
|
|
|
qDebug() << " - MsgConfigureScopeVis:"
|
|
<< " m_triggerChannel: " << m_triggerChannel
|
|
<< " m_triggerLevel: " << m_triggerLevel
|
|
<< " m_triggerPositiveEdge: " << (m_triggerPositiveEdge ? "edge+" : "edge-")
|
|
<< " m_triggerBothEdges: " << (m_triggerBothEdges ? "yes" : "no")
|
|
<< " m_preTrigger: " << m_triggerPre
|
|
<< " m_triggerDelay: " << m_triggerDelay
|
|
<< " m_traceSize: " << m_trace.size();
|
|
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void ScopeVis::setSampleRate(int sampleRate)
|
|
{
|
|
m_sampleRate = sampleRate;
|
|
}
|
|
|
|
bool ScopeVis::triggerCondition(SampleVector::const_iterator& it)
|
|
{
|
|
Complex c(it->real()/32768.0f, it->imag()/32768.0f);
|
|
m_traceback.push_back(c); // store into trace memory FIFO
|
|
|
|
if (m_tracebackCount < m_traceback.size()) { // increment count up to trace memory size
|
|
m_tracebackCount++;
|
|
}
|
|
|
|
if (m_triggerChannel == TriggerChannelI) {
|
|
return c.real() > m_triggerLevel;
|
|
}
|
|
else if (m_triggerChannel == TriggerChannelQ) {
|
|
return c.imag() > m_triggerLevel;
|
|
}
|
|
else if (m_triggerChannel == TriggerMagLin) {
|
|
return abs(c) > m_triggerLevel;
|
|
}
|
|
else if (m_triggerChannel == TriggerMagDb) {
|
|
Real mult = (10.0f / log2f(10.0f));
|
|
Real v = c.real() * c.real() + c.imag() * c.imag();
|
|
return mult * log2f(v) > m_triggerLevel;
|
|
}
|
|
else if (m_triggerChannel == TriggerPhase) {
|
|
return arg(c) / M_PI > m_triggerLevel;
|
|
}
|
|
else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void ScopeVis::setOneShot(bool oneShot)
|
|
{
|
|
m_triggerOneShot = oneShot;
|
|
|
|
if ((m_triggerState == WaitForReset) && !oneShot) {
|
|
m_tracebackCount = 0;
|
|
m_triggerState = Untriggered;
|
|
}
|
|
}
|