Spectrum panel init fixes, more FFT distributor tweaks

src/panel/SpectrumPanel.cpp

@@ -4,8 +4,16 @@
 #include <iostream>
 #include <iomanip>
 #include "ColorTheme.h"
+#include "CubicSDRDefs.h"
+
+SpectrumPanel::SpectrumPanel() {
+    floorValue = 0;
+    ceilValue = 1;
+    showDb = false;
+    fftSize = DEFAULT_FFT_SIZE;
+    bandwidth = DEFAULT_DEMOD_BW;
+    freq = 0;
     
-SpectrumPanel::SpectrumPanel() : floorValue(0), ceilValue(1), showDb(false), fftSize(2048) {
     setFill(GLPANEL_FILL_GRAD_Y);
     setFillColor(ThemeMgr::mgr.currentTheme->fftBackground * 2.0, ThemeMgr::mgr.currentTheme->fftBackground);
     
@@ -233,15 +241,18 @@ void SpectrumPanel::drawPanelContents() {
         float dbPanelHeight = (1.0/viewHeight)*14.0;
         
         
-        std::stringstream ssLabel;
+        std::stringstream ssLabel("");
+        if (getCeilValue() != getFloorValue() && fftSize) {
             ssLabel << std::fixed << std::setprecision(1) << (20.0 * log10(2.0*(getCeilValue())/(double)fftSize)) << "dB";
-
+        }
         dbPanelCeil.setText(ssLabel.str(), GLFont::GLFONT_ALIGN_RIGHT);
         dbPanelCeil.setSize(dbPanelWidth, dbPanelHeight);
         dbPanelCeil.setPosition(-1.0 + dbPanelWidth, 1.0 - dbPanelHeight);
         
         ssLabel.str("");
+        if (getCeilValue() != getFloorValue() && fftSize) {
             ssLabel << (20.0 * log10(2.0*(getFloorValue())/(double)fftSize)) << "dB";
+        }
 
         dbPanelFloor.setText(ssLabel.str(), GLFont::GLFONT_ALIGN_RIGHT);
         dbPanelFloor.setSize(dbPanelWidth, dbPanelHeight);

src/process/FFTDataDistributor.cpp

@@ -16,7 +16,7 @@ int FFTDataDistributor::getLinesPerSecond() {
 }
 
 void FFTDataDistributor::process() {
-	while (!input->empty()) {
+	if (!input->empty()) {
 		if (!isAnyOutputEmpty()) {
 			return;
 		}
@@ -33,7 +33,7 @@ void FFTDataDistributor::process() {
 			}
 			inp->decRefCount();
 		} else {
-			continue;
+			return;
 		}
 
 		// number of seconds contained in input

src/visual/ScopeCanvas.cpp

@@ -102,9 +102,9 @@ void ScopeCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) {
     wxPaintDC dc(this);
     const wxSize ClientSize = GetClientSize();
 
-#ifdef __APPLE__
-    glFinish();
-#endif
+//#ifdef __APPLE__
+//    glFinish();
+//#endif
 
     while (!inputData.empty()) {
         ScopeRenderData *avData;

src/visual/SpectrumCanvas.cpp

@@ -45,9 +45,9 @@ SpectrumCanvas::~SpectrumCanvas() {
 void SpectrumCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) {
     wxPaintDC dc(this);
     const wxSize ClientSize = GetClientSize();
-#ifdef __APPLE__
-    glFinish();
-#endif
+//#ifdef __APPLE__
+//    glFinish();
+//#endif
     
     
     if (!visualDataQueue.empty()) {

src/visual/WaterfallCanvas.cpp

@@ -75,9 +75,9 @@ void WaterfallCanvas::processInputQueue() {
     glContext->SetCurrent(*this);
     
     bool processed = false;
-    while (!visualDataQueue.empty()) {
+    int numVis = visualDataQueue.size();
+    for (int i = 0; i < numVis; i++) {
         SpectrumVisualData *vData;
-        
         visualDataQueue.pop(vData);
         
         if (vData) {