Supply the segment ID when adding samples to optimize trace painting

[pulseview.git] / pv / views / viewbase.cpp

diff --git a/pv/views/viewbase.cpp b/pv/views/viewbase.cpp
index 7d986fe051e730b55034bb423a0afdc1ca058c87..65cf6842aeee0699686f59990379c48d9a2499c2 100644 (file)
--- a/pv/views/viewbase.cpp
+++ b/pv/views/viewbase.cpp
@@ -26,6 +26,7 @@
 
 #include "pv/session.hpp"
 #include "pv/util.hpp"
+#include "pv/data/segment.hpp"
 
 using std::shared_ptr;
 
@@ -36,7 +37,8 @@ const int ViewBase::MaxViewAutoUpdateRate = 25; // No more than 25 Hz
 
 ViewBase::ViewBase(Session &session, bool is_main_view, QWidget *parent) :
        session_(session),
-       is_main_view_(is_main_view)
+       is_main_view_(is_main_view),
+       current_segment_(0)
 {
        (void)parent;
 
@@ -78,7 +80,7 @@ void ViewBase::clear_signalbases()
                disconnect(signalbase.get(), SIGNAL(samples_cleared()),
                        this, SLOT(on_data_updated()));
                disconnect(signalbase.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
-                       this, SLOT(on_data_updated()));
+                       this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
        }
 
        signalbases_.clear();
@@ -91,7 +93,7 @@ void ViewBase::add_signalbase(const shared_ptr<data::SignalBase> signalbase)
        connect(signalbase.get(), SIGNAL(samples_cleared()),
                this, SLOT(on_data_updated()));
        connect(signalbase.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
-               this, SLOT(on_data_updated()));
+               this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
 }
 
 #ifdef ENABLE_DECODE
@@ -148,6 +150,21 @@ void ViewBase::perform_delayed_view_update()
 {
 }
 
+void ViewBase::on_samples_added(QObject* segment, uint64_t start_sample,
+       uint64_t end_sample)
+{
+       (void)start_sample;
+       (void)end_sample;
+
+       data::Segment* s = qobject_cast<data::Segment*>(segment);
+
+       if (s->segment_id() != current_segment_)
+               return;
+
+       if (!delayed_view_updater_.isActive())
+               delayed_view_updater_.start();
+}
+
 void ViewBase::on_data_updated()
 {
        if (!delayed_view_updater_.isActive())