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samplebuffer: Add some nullptr checks to fix crashyness

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Mike Walters
2016-03-03 23:09:11 +00:00
parent 9b78f334aa
commit 0694d3fd45
2 changed files with 9 additions and 0 deletions
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6
traceplot.cpp
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@@ -32,6 +32,9 @@ void TracePlot::paintMid(QPainter &painter, QRect &rect, range_t<off_t> sampleRa
// Is it a 2-channel (complex) trace?
if (auto src = dynamic_cast<SampleSource<std::complex<float>>*>(sampleSource.get())) {
auto samples = src->getSamples(firstSample, length);
if (samples == nullptr)
return;
painter.setPen(Qt::red);
plotTrace(painter, rect, reinterpret_cast<float*>(samples.get()), length, 2);
painter.setPen(Qt::blue);
@@ -40,6 +43,9 @@ void TracePlot::paintMid(QPainter &painter, QRect &rect, range_t<off_t> sampleRa
// Otherwise is it single channel?
} else if (auto src = dynamic_cast<SampleSource<float>*>(sampleSource.get())) {
auto samples = src->getSamples(firstSample, length);
if (samples == nullptr)
return;
painter.setPen(Qt::green);
plotTrace(painter, rect, samples.get(), length, 1);
} else {