Use a type with a greater resolution to represent time values

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

diff --git a/pv/view/logicsignal.cpp b/pv/view/logicsignal.cpp
index 49d1263642b9b97ee3bac15c95fbe8a897e2f724..b20e5f06bf457b2b7710085aa39addbe0cab3757 100644 (file)
--- a/pv/view/logicsignal.cpp
+++ b/pv/view/logicsignal.cpp
@@ -189,15 +189,18 @@ void LogicSignal::paint_mid(QPainter &p, const ViewItemPaintParams &pp)
                samplerate = 1.0;
 
        const double pixels_offset = pp.pixels_offset();
-       const double start_time = segment->start_time();
+       const pv::util::Timestamp& start_time = segment->start_time();
        const int64_t last_sample = segment->get_sample_count() - 1;
        const double samples_per_pixel = samplerate * pp.scale();
-       const double start = samplerate * (pp.offset() - start_time);
-       const double end = start + samples_per_pixel * pp.width();
+       const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
+       const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
 
-       segment->get_subsampled_edges(edges,
-               min(max((int64_t)floor(start), (int64_t)0), last_sample),
-               min(max((int64_t)ceil(end), (int64_t)0), last_sample),
+       const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
+               (int64_t)0), last_sample);
+       const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
+               (int64_t)0), last_sample);
+
+       segment->get_subsampled_edges(edges, start_sample, end_sample,
                samples_per_pixel / Oversampling, channel_->index());
        assert(edges.size() >= 2);