Switch segment storage from single vector to vector of arrays

[pulseview.git] / pv / view / analogsignal.cpp

diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp
index 3291c1615f4fb253048ae36468fc191a04c3840a..41f46dfcc75b414e47fbf8dd6bf47d2d7ff8502a 100644 (file)
--- a/pv/view/analogsignal.cpp
+++ b/pv/view/analogsignal.cpp
@@ -240,26 +240,25 @@ void AnalogSignal::paint_trace(QPainter &p,
        int y, int left, const int64_t start, const int64_t end,
        const double pixels_offset, const double samples_per_pixel)
 {
-       const int64_t sample_count = end - start;
-
-       const float *const samples = segment->get_samples(start, end);
-       assert(samples);
-
        p.setPen(base_->colour());
 
-       QPointF *points = new QPointF[sample_count];
+       QPointF *points = new QPointF[end - start];
        QPointF *point = points;
 
+       pv::data::SegmentAnalogDataIterator* it =
+               segment->begin_sample_iteration(start);
+
        for (int64_t sample = start; sample != end; sample++) {
                const float x = (sample / samples_per_pixel -
                        pixels_offset) + left;
-               *point++ = QPointF(x,
-                       y - samples[sample - start] * scale_);
+
+               *point++ = QPointF(x, y - *((float*)it->value) * scale_);
+               segment->continue_sample_iteration(it, 1);
        }
+       segment->end_sample_iteration(it);
 
        p.drawPolyline(points, point - points);
 
-       delete[] samples;
        delete[] points;
 }