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Commit 4e43b764 authored by jsiegle's avatar jsiegle
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Change visualizer refresh rate

parent 4ba483e2
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Source/Processors/LfpDisplayNode.cpp
+ 1
− 48
View file @ 4e43b764
......@@ -279,8 +279,6 @@ void LfpDisplayNode::process(AudioSampleBuffer &buffer, MidiBuffer &events, int&
initializeEventChannel();
checkForEvents(events); // update timestamp, see if we got any TTL events
int samplesLeft = displayBuffer->getNumSamples() - displayBufferIndex;
......@@ -324,52 +322,7 @@ void LfpDisplayNode::process(AudioSampleBuffer &buffer, MidiBuffer &events, int&
displayBufferIndex = extraSamples;
}
//std::cout << *displayBuffer->getSampleData(displayBuffer->getNumChannels()-1,
// displayBufferIndex-1) << std::endl;
///// failed attempt to use abstractFifo:
// int start1, size1, start2, size2;
// abstractFifo.prepareToWrite(nSamples, start1, size1, start2, size2);
// if (size1 > 0)
// {
// for (int chan = 0; chan < buffer.getNumChannels(); chan++)
// {
// displayBuffer->copyFrom(chan, // destChannel
// start1, // destStartSample
// buffer, // source
// chan, // source channel
// 0, // source start sample
// size1); // numSamples
// }
// displayBufferIndex += size1;
// }
// if (size2 > 0)
// {
// for (int chan = 0; chan < buffer.getNumChannels(); chan++)
// {
// displayBuffer->copyFrom(chan, // destChannel
// start2, // destStartSample
// buffer, // source
// chan, // source channel
// size1, // source start sample
// size2); // numSamples
// }
// displayBufferIndex = size2;
// }
// std::cout << displayBufferIndex << std::endl;
// abstractFifo.finishedWrite(size1 + size2);
}
Source/Processors/Visualization/LfpDisplayCanvas.cpp
+ 70
− 46
View file @ 4e43b764
......@@ -26,7 +26,7 @@
#include <math.h>
LfpDisplayCanvas::LfpDisplayCanvas(LfpDisplayNode* processor_) :
timebase(1.0f), displayGain(2.f), timeOffset(0.0f), processor(processor_),
timebase(1.0f), displayGain(1.0f), timeOffset(0.0f), processor(processor_),
screenBufferIndex(0), displayBufferIndex(0)
{
......@@ -38,6 +38,8 @@ LfpDisplayCanvas::LfpDisplayCanvas(LfpDisplayNode* processor_) :
displayBufferSize = displayBuffer->getNumSamples();
std::cout << "Setting displayBufferSize on LfpDisplayCanvas to " << displayBufferSize << std::endl;
screenBuffer = new AudioSampleBuffer(MAX_N_CHAN, MAX_N_SAMP);
viewport = new Viewport();
lfpDisplay = new LfpDisplay(this, viewport);
timescale = new LfpTimescale(this);
......@@ -56,6 +58,8 @@ LfpDisplayCanvas::LfpDisplayCanvas(LfpDisplayNode* processor_) :
LfpDisplayCanvas::~LfpDisplayCanvas()
{
deleteAndZero(screenBuffer);
}
void LfpDisplayCanvas::resized()
......@@ -78,14 +82,14 @@ void LfpDisplayCanvas::beginAnimation()
screenBufferIndex = 0;
startCallbacks();
startTimer(500);
}
void LfpDisplayCanvas::endAnimation()
{
std::cout << "Ending animation." << std::endl;
stopCallbacks();
stopTimer();
}
void LfpDisplayCanvas::update()
......@@ -103,8 +107,6 @@ void LfpDisplayCanvas::update()
repaint();
lfpDisplay->repaint();
}
......@@ -133,25 +135,30 @@ void LfpDisplayCanvas::refreshScreenBuffer()
screenBufferIndex = 0;
int w = lfpDisplay->getWidth();
//std::cout << "Refreshing buffer size to " << w << "pixels." << std::endl;
screenBuffer->clear();
for (int i = 0; i < w; i++)
{
float x = float(i);
// int w = lfpDisplay->getWidth();
// //std::cout << "Refreshing buffer size to " << w << "pixels." << std::endl;
for (int n = 0; n < nChans; n++)
{
waves[n][i*2] = x;
waves[n][i*2+1] = 0.5f; // line in center of display
}
}
// for (int i = 0; i < w; i++)
// {
// float x = float(i);
// for (int n = 0; n < nChans; n++)
// {
// waves[n][i*2] = x;
// waves[n][i*2+1] = 0.5f; // line in center of display
// }
// }
}
void LfpDisplayCanvas::updateScreenBuffer()
{
// copy new samples from the displayBuffer into the screenBuffer (waves)
lastScreenBufferIndex = screenBufferIndex;
int maxSamples = lfpDisplay->getWidth();
int index = processor->getDisplayBufferIndex();
......@@ -179,16 +186,31 @@ void LfpDisplayCanvas::updateScreenBuffer()
float alpha = (float) subSampleOffset;
float invAlpha = 1.0f - alpha;
screenBuffer->clear(screenBufferIndex, 1);
for (int channel = 0; channel < nChans; channel++) {
gain = -1.0f / (processor->channels[channel]->bitVolts * float(0x7fff));
waves[channel][screenBufferIndex*2+1] =
*(displayBuffer->getSampleData(channel, displayBufferIndex))*invAlpha*gain*displayGain;
gain = 1.0f / (processor->channels[channel]->bitVolts * float(0x7fff));
screenBuffer->addFrom(channel, // destChannel
screenBufferIndex, // destStartSample
displayBuffer->getSampleData(channel, displayBufferIndex), // source
1, // numSamples
invAlpha*gain*displayGain); // gain
waves[channel][screenBufferIndex*2+1] +=
*(displayBuffer->getSampleData(channel, nextPos))*alpha*gain*displayGain;
screenBuffer->addFrom(channel, // destChannel
screenBufferIndex, // destStartSample
displayBuffer->getSampleData(channel, nextPos), // source
1, // numSamples
alpha*gain*displayGain); // gain
waves[channel][screenBufferIndex*2+1] += 0.5f; // to center in viewport
//waves[channel][screenBufferIndex*2+1] =
// *(displayBuffer->getSampleData(channel, displayBufferIndex))*invAlpha*gain*displayGain;
//waves[channel][screenBufferIndex*2+1] +=
// *(displayBuffer->getSampleData(channel, nextPos))*alpha*gain*displayGain;
//waves[channel][screenBufferIndex*2+1] += 0.5f; // to center in viewport
}
......@@ -220,12 +242,12 @@ void LfpDisplayCanvas::updateScreenBuffer()
float LfpDisplayCanvas::getXCoord(int chan, int samp)
{
return waves[chan][samp*2];
return samp;
}
float LfpDisplayCanvas::getYCoord(int chan, int samp)
{
return waves[chan][samp*2+1];
return *screenBuffer->getSampleData(chan, samp);
}
void LfpDisplayCanvas::paint(Graphics& g)
......@@ -235,16 +257,13 @@ void LfpDisplayCanvas::paint(Graphics& g)
updateScreenBuffer();
g.fillAll(Colours::grey);
g.setColour(Colours::yellow);
g.setColour(Colours::grey);
g.drawLine(screenBufferIndex, 0, screenBufferIndex, getHeight());
lfpDisplay->repaint();
g.fillRect(0, 0, getWidth(), getHeight());
g.setColour(Colours::yellow);
//g.drawLine(0,0, getWidth(), getHeight());
//g.drawLine(0,getHeight(),getWidth(), 0);
g.drawLine(screenBufferIndex, 0, screenBufferIndex, getHeight());
}
......@@ -335,20 +354,23 @@ void LfpDisplay::paint(Graphics& g)
int bottomBorder = viewport->getViewHeight() + topBorder;
// ensure that only visible channels are redrawn
for (int i = 0; i < numChans; i++)
{
// for (int i = 0; i < numChans; i++)
// {
int componentTop = getChildComponent(i)->getY();
int componentBottom = getChildComponent(i)->getHeight() + componentTop;
// int componentTop = getChildComponent(i)->getY();
// int componentBottom = getChildComponent(i)->getHeight() + componentTop;
if ( (topBorder <= componentBottom && bottomBorder >= componentTop) )
{
getChildComponent(i)->repaint();
// if ( (topBorder <= componentBottom && bottomBorder >= componentTop) )
// {
// getChildComponent(i)->repaint(canvas->lastScreenBufferIndex,
// 0,
// canvas->screenBufferIndex,
// getChildComponent(i)->getHeight());
//std::cout << i << std::endl;
}
// //std::cout << i << std::endl;
// }
}
// }
}
......@@ -396,13 +418,15 @@ void LfpChannelDisplay::paint(Graphics& g)
g.drawLine(0, getHeight()/2, getWidth(), getHeight()/2);
for (int i = 0; i < getWidth()-1; i++)
int stepSize = 1;
for (int i = 0; i < getWidth()-1; i += stepSize)
{
g.drawLine(i,
canvas->getYCoord(chan, i)*getHeight(),
i+1,
canvas->getYCoord(chan, i+1)*getHeight());
(canvas->getYCoord(chan, i)+0.5f)*getHeight(),
i+stepSize,
(canvas->getYCoord(chan, i+stepSize)+0.5f)*getHeight());
}
}
......
Source/Processors/Visualization/LfpDisplayCanvas.h
+ 6
− 2
View file @ 4e43b764
......@@ -65,6 +65,9 @@ public:
float getXCoord(int chan, int samp);
float getYCoord(int chan, int samp);
int screenBufferIndex;
int lastScreenBufferIndex;
private:
float sampleRate;
......@@ -74,10 +77,11 @@ private:
static const int MAX_N_CHAN = 256; // maximum number of channels
static const int MAX_N_SAMP = 5000; // maximum display size in pixels
float waves[MAX_N_CHAN][MAX_N_SAMP*2]; // we need an x and y point for each sample
//float waves[MAX_N_CHAN][MAX_N_SAMP*2]; // we need an x and y point for each sample
LfpDisplayNode* processor;
AudioSampleBuffer* displayBuffer;
AudioSampleBuffer* screenBuffer;
MidiBuffer* eventBuffer;
ScopedPointer<LfpTimescale> timescale;
......@@ -86,7 +90,7 @@ private:
void refreshScreenBuffer();
void updateScreenBuffer();
int screenBufferIndex;
int displayBufferIndex;
int displayBufferSize;
......
Source/Processors/Visualization/SpikeDisplayCanvas.cpp
+ 0
− 2
View file @ 4e43b764
......@@ -398,8 +398,6 @@ void SpikeDisplay::plotSpike(const SpikeObject& spike)
}
// ----------------------------------------------------------------
SpikePlot::SpikePlot(SpikeDisplayCanvas* sdc, int elecNum, int numChans) :
......
Source/Processors/Visualization/Visualizer.h
+ 1
− 1
View file @ 4e43b764
......@@ -61,7 +61,7 @@ public:
virtual void setParameter(int, int, int, float) = 0;
/** Starts the timer callbacks. */
void startCallbacks() { startTimer(1/refreshRate); }
void startCallbacks() { startTimer(100); }
/** Stops the timer callbacks. */
void stopCallbacks() { stopTimer(); }
......
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