tempo-plotter Changeset - ebfc27478fc5 · protofusion repositories

Changeset - ebfc27478fc5

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Hasan Yavuz ÖZDERYA - 9 years ago 2016-08-15 00:12:10
hy@ozderya.net

fix auto scale always including 0

1 file changed with 2 insertions and 2 deletions:

src/framebuffer.cpp

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src/framebuffer.cpp

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@@ @@ -21,134 +21,134 @@ @@
 FrameBuffer::FrameBuffer(size_t size)
+{
     _size = size;
     data = new double[_size]();
     headIndex = 0;
     _boundingRect.setCoords(0, 0, size, 0);
+}
 FrameBuffer::~FrameBuffer()
+{
     delete data;
+}
 void FrameBuffer::resize(size_t size)
+{
     int offset = size - _size;
     if (offset == 0) return;
     double* newData = new double[size];
     // move data to new array
     int fill_start = offset > 0 ? offset : 0;
     for (int i = fill_start; i < int(size); i++)
+    {
         newData[i] = sample(i - offset);
+    }
     // fill the beginning of the new data
     if (fill_start > 0)
+    {
         for (int i = 0; i < fill_start; i++)
+        {
             newData[i] = 0;
+        }
+    }
     // data is ready, clean and re-point
     delete data;
     data = newData;
     headIndex = 0;
     _size = size;
     // update the bounding rectangle
     _boundingRect.setRight(_size);
+}
 void FrameBuffer::addSamples(double* samples, size_t size)
+{
     unsigned shift = size;
     if (shift < _size)
+    {
         unsigned x = _size - headIndex; // distance of `head` to end
         if (shift <= x) // there is enough room at the end of array
+        {
             for (size_t i = 0; i < shift; i++)
+            {
                 data[i+headIndex] = samples[i];
+            }
             if (shift == x) // we used all the room at the end
+            {
                 headIndex = 0;
+            }
             else
+            {
                 headIndex += shift;
+            }
+        }
         else // there isn't enough room
+        {
             for (size_t i = 0; i < x; i++) // fill the end part
+            {
                 data[i+headIndex] = samples[i];
+            }
             for (size_t i = 0; i < (shift-x); i++) // continue from the beginning
+            {
                 data[i] = samples[i+x];
+            }
             headIndex = shift-x;
+        }
+    }
     else // number of new samples equal or bigger than current size
+    {
         int x = shift - _size;
         for (size_t i = 0; i < _size; i++)
+        {
             data[i] = samples[i+x];
+        }
         headIndex = 0;
+    }
     // update bounding rectangle
     double minValue = 0;
     double maxValue = 0;
     double minValue = data[0];
     double maxValue = data[0];
     for (size_t i = 0; i < _size; i++)
+    {
         if (data[i] > maxValue)
+        {
             maxValue = data[i];
+        }
         else if (data[i] < minValue)
+        {
             minValue = data[i];
+        }
+    }
     _boundingRect.setTop(minValue);
     _boundingRect.setBottom(maxValue);
+}
 void FrameBuffer::clear()
+{
     for (size_t i=0; i < _size; i++) data[i] = 0.;
+}
 size_t FrameBuffer::size() const
+{
     return _size;
+}
 QRectF FrameBuffer::boundingRect() const
+{
     return _boundingRect;
+}
 double FrameBuffer::sample(size_t i) const
+{
     size_t index = headIndex + i;
     if (index >= _size) index -= _size;
     return data[index];
+}

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