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142 lines
3.7 KiB
C++
142 lines
3.7 KiB
C++
#include "dsp/scopevis.h"
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#include "gui/glscope.h"
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#include "dsp/dspcommands.h"
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#include "util/messagequeue.h"
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ScopeVis::ScopeVis(GLScope* glScope) :
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m_glScope(glScope),
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m_trace(100000),
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m_fill(0),
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m_triggerState(Untriggered),
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m_triggerChannel(TriggerFreeRun),
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m_triggerLevelHigh(0.01 * 32768),
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m_triggerLevelLow(0.01 * 32768 - 1024),
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m_sampleRate(0)
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{
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}
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void ScopeVis::configure(MessageQueue* msgQueue, TriggerChannel triggerChannel, Real triggerLevelHigh, Real triggerLevelLow)
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{
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Message* cmd = DSPConfigureScopeVis::create(triggerChannel, triggerLevelHigh, triggerLevelLow);
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cmd->submit(msgQueue, this);
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}
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void ScopeVis::feed(SampleVector::const_iterator begin, SampleVector::const_iterator end, bool positiveOnly)
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{
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while(begin < end) {
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if(m_triggerChannel == TriggerChannelI) {
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if(m_triggerState == Untriggered) {
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while(begin < end) {
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if(begin->real() >= m_triggerLevelHigh) {
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m_triggerState = Triggered;
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break;
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}
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++begin;
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}
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}
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if(m_triggerState == Triggered) {
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int count = end - begin;
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if(count > (int)(m_trace.size() - m_fill))
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count = m_trace.size() - m_fill;
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std::vector<Complex>::iterator it = m_trace.begin() + m_fill;
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for(int i = 0; i < count; ++i) {
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*it++ = Complex(begin->real() / 32768.0, begin->imag() / 32768.0);
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++begin;
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}
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m_fill += count;
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if(m_fill >= m_trace.size()) {
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m_glScope->newTrace(m_trace, m_sampleRate);
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m_fill = 0;
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m_triggerState = WaitForReset;
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}
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}
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if(m_triggerState == WaitForReset) {
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while(begin < end) {
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if(begin->real() < m_triggerLevelLow) {
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m_triggerState = Untriggered;
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break;
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}
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++begin;
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}
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}
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} else if(m_triggerChannel == TriggerChannelQ) {
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if(m_triggerState == Untriggered) {
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while(begin < end) {
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if(begin->imag() >= m_triggerLevelHigh) {
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m_triggerState = Triggered;
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break;
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}
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++begin;
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}
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}
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if(m_triggerState == Triggered) {
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int count = end - begin;
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if(count > (int)(m_trace.size() - m_fill))
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count = m_trace.size() - m_fill;
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std::vector<Complex>::iterator it = m_trace.begin() + m_fill;
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for(int i = 0; i < count; ++i) {
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*it++ = Complex(begin->real() / 32768.0, begin->imag() / 32768.0);
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++begin;
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}
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m_fill += count;
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if(m_fill >= m_trace.size()) {
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m_glScope->newTrace(m_trace, m_sampleRate);
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m_fill = 0;
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m_triggerState = WaitForReset;
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}
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}
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if(m_triggerState == WaitForReset) {
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while(begin < end) {
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if(begin->imag() < m_triggerLevelLow) {
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m_triggerState = Untriggered;
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break;
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}
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++begin;
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}
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}
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} else {
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int count = end - begin;
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if(count > (int)(m_trace.size() - m_fill))
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count = m_trace.size() - m_fill;
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std::vector<Complex>::iterator it = m_trace.begin() + m_fill;
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for(int i = 0; i < count; ++i) {
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*it++ = Complex(begin->real() / 32768.0, begin->imag() / 32768.0);
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++begin;
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}
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m_fill += count;
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if(m_fill >= m_trace.size()) {
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m_glScope->newTrace(m_trace, m_sampleRate);
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m_fill = 0;
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}
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}
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}
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}
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void ScopeVis::start()
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{
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}
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void ScopeVis::stop()
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{
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}
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bool ScopeVis::handleMessage(Message* message)
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{
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if(DSPSignalNotification::match(message)) {
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DSPSignalNotification* signal = (DSPSignalNotification*)message;
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m_sampleRate = signal->getSampleRate();
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message->completed();
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return true;
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} else if(DSPConfigureScopeVis::match(message)) {
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DSPConfigureScopeVis* conf = (DSPConfigureScopeVis*)message;
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m_triggerState = Untriggered;
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m_triggerChannel = (TriggerChannel)conf->getTriggerChannel();
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m_triggerLevelHigh = conf->getTriggerLevelHigh() * 32767;
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m_triggerLevelLow = conf->getTriggerLevelLow() * 32767;
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message->completed();
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return true;
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} else {
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return false;
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}
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}
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