ScopeVis::TriggerComparator Class Reference

Public Member Functions
	TriggerComparator ()
bool	triggered (const Sample &s, TriggerCondition &triggerCondition)
void	reset ()

Private Member Functions
void	computeLevels ()

Private Attributes
Real	m_level
Real	m_levelPowerDB
Real	m_levelPowerLin
bool	m_reset

Detailed Description

Definition at line 1031 of file scopevis.h.

Constructor & Destructor Documentation

TriggerComparator()

ScopeVis::TriggerComparator::TriggerComparator ( )

inline

Definition at line 1034 of file scopevis.h.

                            : m_level(0), m_reset(true)
        {
            computeLevels();
        }

Member Function Documentation

computeLevels()

void ScopeVis::TriggerComparator::computeLevels ( )

inlineprivate

Definition at line 1109 of file scopevis.h.

        {
            m_levelPowerLin = m_level + 1.0f;
            m_levelPowerDB = (100.0f * (m_level - 1.0f));
        }

reset()

void ScopeVis::TriggerComparator::reset ( )

inline

Definition at line 1103 of file scopevis.h.

Referenced by ScopeVis::processTrace().

        {
            m_reset = true;
        }

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triggered()

bool ScopeVis::TriggerComparator::triggered ( const Sample &  s, TriggerCondition &  triggerCondition  )

inline

Definition at line 1039 of file scopevis.h.

References Projector::getProjectionType(), ScopeVis::TriggerCondition::m_falses, ScopeVis::TriggerCondition::m_prevCondition, ScopeVis::TriggerCondition::m_projector, ScopeVis::TriggerData::m_triggerBothEdges, ScopeVis::TriggerCondition::m_triggerData, ScopeVis::TriggerData::m_triggerHoldoff, ScopeVis::TriggerData::m_triggerLevel, ScopeVis::TriggerData::m_triggerPositiveEdge, ScopeVis::TriggerCondition::m_trues, Projector::ProjectionMagDB, Projector::ProjectionMagLin, and Projector::run().

Referenced by ScopeVis::processTrace().

        {
            if (triggerCondition.m_triggerData.m_triggerLevel != m_level)
            {
                m_level = triggerCondition.m_triggerData.m_triggerLevel;
                computeLevels();
            }

            bool condition, trigger;

            if (triggerCondition.m_projector.getProjectionType() == Projector::ProjectionMagDB) {
                condition = triggerCondition.m_projector.run(s) > m_levelPowerDB;
            } else if (triggerCondition.m_projector.getProjectionType() == Projector::ProjectionMagLin) {
                condition = triggerCondition.m_projector.run(s) > m_levelPowerLin;
            } else {
                condition = triggerCondition.m_projector.run(s) > m_level;
            }

            if (condition)
            {
                if (triggerCondition.m_trues < triggerCondition.m_triggerData.m_triggerHoldoff) {
                    condition = false;
                    triggerCondition.m_trues++;
                } else {
                    triggerCondition.m_falses = 0;
                }
            }
            else
            {
                if (triggerCondition.m_falses < triggerCondition.m_triggerData.m_triggerHoldoff) {
                    condition = true;
                    triggerCondition.m_falses++;
                } else {
                    triggerCondition.m_trues = 0;
                }
            }

            if (m_reset)
            {
                triggerCondition.m_prevCondition = condition;
                m_reset = false;
                return false;
            }

            if (triggerCondition.m_triggerData.m_triggerBothEdges) {
                trigger = triggerCondition.m_prevCondition ? !condition : condition; // This is a XOR between bools
            } else if (triggerCondition.m_triggerData.m_triggerPositiveEdge) {
                trigger = !triggerCondition.m_prevCondition && condition;
            } else {
                trigger = triggerCondition.m_prevCondition && !condition;
            }

//            if (trigger) {
//                qDebug("ScopeVis::triggered: %s/%s %f/%f",
//                        triggerCondition.m_prevCondition ? "T" : "F",
//                        condition ? "T" : "F",
//                        triggerCondition.m_projector->run(s),
//                        triggerCondition.m_triggerData.m_triggerLevel);
//            }

            triggerCondition.m_prevCondition = condition;
            return trigger;
        }

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Member Data Documentation

m_level

Real ScopeVis::TriggerComparator::m_level

private

Definition at line 1115 of file scopevis.h.

m_levelPowerDB

Real ScopeVis::TriggerComparator::m_levelPowerDB

private

Definition at line 1116 of file scopevis.h.

m_levelPowerLin

Real ScopeVis::TriggerComparator::m_levelPowerLin

private

Definition at line 1117 of file scopevis.h.

m_reset

bool ScopeVis::TriggerComparator::m_reset

private

Definition at line 1118 of file scopevis.h.

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The documentation for this class was generated from the following file:

• sdrgui/dsp/scopevis.h