tempo-plotter Changeset - cd99f9b81da2 · protofusion repositories

Changeset - cd99f9b81da2

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gain-offset

0 3 0

Hasan Yavuz ÖZDERYA - 7 years ago 2018-07-08 05:50:12
hy@ozderya.net

preliminary implementation of gain and offset

3 files changed with 40 insertions and 2 deletions:

src/channelinfomodel.cpp

src/channelinfomodel.h

src/stream.cpp

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src/channelinfomodel.cpp

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@@ @@ -118,6 +118,26 @@ bool ChannelInfoModel::isVisible(unsigne @@
     return infos[i].visibility;
+}
 bool ChannelInfoModel::gainEn (unsigned i) const
+{
     return infos[i].gainEn;
+}
 double ChannelInfoModel::gain (unsigned i) const
+{
     return infos[i].gain;
+}
 bool ChannelInfoModel::offsetEn (unsigned i) const
+{
     return infos[i].offsetEn;
+}
 double ChannelInfoModel::offset (unsigned i) const
+{
     return infos[i].offset;
+}
 QStringList ChannelInfoModel::channelNames() const
+{
     QStringList r;

src/channelinfomodel.h

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@@ @@ -46,6 +46,10 @@ public: @@
     QString name     (unsigned i) const;
     QColor  color    (unsigned i) const;
     bool    isVisible(unsigned i) const;
     bool    gainEn   (unsigned i) const;
     double  gain     (unsigned i) const;
     bool    offsetEn (unsigned i) const;
     double  offset   (unsigned i) const;
     /// Returns a list of channel names
     QStringList channelNames() const;

src/stream.cpp

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@@ @@ -154,11 +154,25 @@ void Stream::feedIn(const SamplePack& da @@
+    {
         static_cast<RingBuffer*>(xData)->addSamples(data.xData(), ns);
+    }
-    for (unsigned i = 0; i < numChannels(); i++)
+    for (unsigned ci = 0; ci < numChannels(); ci++)
+    {
         static_cast<RingBuffer*>(channels[i]->yData())->addSamples(data.data(i), ns);
         // TODO: check for gainEn and offsetEn
         // apply gain and offset
         auto rdata = data.data(ci);
         auto mdata = new double[sizeof(double) * ns];
         // TODO: add gain&offset access methods to `StreamChannel`
         double gain = channels[ci]->info()->gain(ci);
         double offset = channels[ci]->info()->offset(ci);
         for (int i = 0; i < ns; i++)
+        {
             mdata[i] = rdata[i] * gain + offset;
+        }
         static_cast<RingBuffer*>(channels[ci]->yData())->addSamples(mdata, ns);
         delete[] mdata;
+    }
     // TODO: emit modified (gain&offset) data
     Sink::feedIn(data);
     emit dataAdded();

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