Static analysis warning fixes

external/rtaudio/RtAudio.cpp

@@ -180,7 +180,7 @@ RtAudio :: RtAudio( RtAudio::Api api )
   getCompiledApi( apis );
   for ( unsigned int i=0; i<apis.size(); i++ ) {
     openRtApi( apis[i] );
-    if ( rtapi_->getDeviceCount() ) break;
+    if ( rtapi_ && rtapi_->getDeviceCount() ) break;
   }
 
   if ( rtapi_ ) return;

src/AppFrame.cpp

@@ -45,7 +45,6 @@ AppFrame::AppFrame() :
 #endif
 
     wxBoxSizer *vbox = new wxBoxSizer(wxVERTICAL);
-    wxBoxSizer *demodOpts = new wxBoxSizer(wxVERTICAL);
     wxBoxSizer *demodVisuals = new wxBoxSizer(wxVERTICAL);
     wxBoxSizer *demodTray = new wxBoxSizer(wxHORIZONTAL);
     wxBoxSizer *demodScopeTray = new wxBoxSizer(wxVERTICAL);

src/util/DataTree.cpp

@@ -38,7 +38,7 @@ DataElement::DataElement() : data_type(DATA_NULL), data_val(NULL), data_size(0),
 
 DataElement::~DataElement() {
     if (data_val) {
-        delete data_val;
+        delete[] data_val;
         data_val = NULL;
     }
 }
@@ -1309,9 +1309,9 @@ long DataTree::getSerialized(char **ser_str, bool debug) {
         memcpy(data_out + data_ptr, element_serialized, element_serialized_size);
         data_ptr += element_serialized_size;
 
-        delete de_name_index_serialized;
-        delete de_num_children_serialized;
-        delete element_serialized;
+        delete[] de_name_index_serialized;
+        delete[] de_num_children_serialized;
+        delete[] element_serialized;
 
         /* if it has children, traverse into them */
         if (dn_stack.top()->hasAnother()) {
@@ -1360,8 +1360,8 @@ void DataTree::setSerialized(char *ser_str, bool debug) {
 
     /* unserialization is a little less straightforward since we have to do a countdown of remaining children */
     while (!dn_stack.empty()) {
-        int name_index;
-        int num_children;
+        int name_index = 0;
+        int num_children = 0;
 
         /* pull the index of the name of this node */
         de_name_index.setSerialized(ser_str + data_ptr);
@@ -1389,7 +1389,7 @@ void DataTree::setSerialized(char *ser_str, bool debug) {
         /* end debug output */
 
         /* name index >= 1 means it has a name */
-        if (name_index) {
+        if (name_index >= 1) {
             dn_stack.top()->setName(node_names[name_index - 1].c_str());
 
         } else /* name is nil */
@@ -1568,10 +1568,10 @@ bool DataTree::SaveToFile(const std::string& filename, bool compress, int compre
     fout << flush;
     fout.close();
 
-    delete hdr_serialized;
+    free(hdr_serialized);
 
     if (!compress) {
-        delete serialized;
+        free(serialized);
     } else {
         delete compressed;
     }
@@ -1630,8 +1630,8 @@ bool DataTree::LoadFromFile(const std::string& filename) {
 
     setSerialized(serialized);
 
-    delete serialized;
-    delete hdr_serialized;
+    delete[] serialized;
+    delete[] hdr_serialized;
 
     return true;
 }

src/visual/ModeSelectorCanvas.cpp

@@ -59,13 +59,6 @@ void ModeSelectorCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) {
 
     glContext->DrawBegin();
 
-    DemodulatorInstance *demod = wxGetApp().getDemodMgr().getLastActiveDemodulator();
-
-    int demodType = 0;
-    if (demod) {
-        demodType = demod->getDemodulatorType();
-    }
-
     int yval = getHoveredSelection();
 
     for (int i = 0; i < numChoices; i++) {

src/visual/PrimaryGLContext.cpp

@@ -151,8 +151,6 @@ void PrimaryGLContext::DrawDemodInfo(DemodulatorInstance *demod, RGBColor color,
     glEnd();
 
     if (ofs * 2.0 < 16.0 / viewWidth) {
-        ofs = 16.0 / viewWidth;
-
         glColor4f(color.r, color.g, color.b, 0.2);
         glBegin(GL_QUADS);
         glVertex3f(uxPos - ofsLeft, hPos + labelHeight, 0.0);
@@ -241,8 +239,8 @@ void PrimaryGLContext::DrawDemod(DemodulatorInstance *demod, RGBColor color, lon
 
     glEnable(GL_BLEND);
 
-    std::string demodStr;
-    GLFont::Align demodAlign;
+    std::string demodStr = "";
+    GLFont::Align demodAlign = GLFont::GLFONT_ALIGN_CENTER;
 
     switch (demod->getDemodulatorType()) {
     case DEMOD_TYPE_FM:

src/visual/TuningCanvas.cpp

@@ -328,12 +328,6 @@ void TuningCanvas::OnMouseWheelMoved(wxMouseEvent& event) {
 }
 
 void TuningCanvas::OnMouseReleased(wxMouseEvent& event) {
-    GLint vp[4];
-    glGetIntegerv( GL_VIEWPORT, vp);
-
-    float viewHeight = (float) vp[3];
-    float viewWidth = (float) vp[2];
-
     InteractiveCanvas::OnMouseReleased(event);
 
     int hExponent = hoverIndex - 1;

src/visual/TuningContext.cpp

@@ -69,7 +69,6 @@ void TuningContext::DrawTuner(long long freq, int count, float displayPos, float
     glGetIntegerv( GL_VIEWPORT, vp);
 
     float viewHeight = (float) vp[3];
-    float viewWidth = (float) vp[2];
 
     freqStr.str("");
     freqStr << freq;
@@ -118,8 +117,6 @@ void TuningContext::DrawTunerDigitBox(int index, int count, float displayPos, fl
     glGetIntegerv( GL_VIEWPORT, vp);
 
     float viewHeight = (float) vp[3];
-    float viewWidth = (float) vp[2];
-
     float pixelHeight = 2.0/viewHeight;
 
     glColor4f(1.0, 0,0,1);
@@ -187,12 +184,6 @@ bool bottom) {
 }
 
 void TuningContext::DrawDemodFreqBw(long long freq, unsigned int bw, long long center) {
-    GLint vp[4];
-    glGetIntegerv( GL_VIEWPORT, vp);
-
-    float viewHeight = (float) vp[3];
-    float viewWidth = (float) vp[2];
-
     DrawTuner(freq, 11, -1.0, (1.0 / 3.0) * 2.0);
     DrawTuner(bw, 7, -1.0 + (2.25 / 3.0), (1.0 / 4.0) * 2.0);
     DrawTuner(center, 11, -1.0 + (2.0 / 3.0) * 2.0, (1.0 / 3.0) * 2.0);

src/visual/WaterfallCanvas.cpp

@@ -366,14 +366,12 @@ void WaterfallCanvas::setData(DemodulatorThreadIQData *input) {
                 bw = getBandwidth();
                 bw = (long long) ceil((long double) bw * currentZoom);
                 if (bw >= wxGetApp().getSampleRate()) {
-                    bw = wxGetApp().getSampleRate();
                     disableView();
                     if (spectrumCanvas) {
                         spectrumCanvas->disableView();
                     }
                 } else {
                     if (mouseTracker.mouseInView()) {
-                        long long freq = wxGetApp().getFrequency();
                         long long mfreqA = getFrequencyAt(mouseTracker.getMouseX());
                         setBandwidth(bw);
                         long long mfreqB = getFrequencyAt(mouseTracker.getMouseX());
@@ -521,8 +519,7 @@ void WaterfallCanvas::setData(DemodulatorThreadIQData *input) {
 
         } else {
             if (last_data_size + num_written < fft_size) { // priming
-                unsigned int num_copy = fft_size;
-                num_copy = fft_size - last_data_size;
+                unsigned int num_copy = fft_size - last_data_size;
                 if (num_written > num_copy) {
                     num_copy = num_written;
                 }

src/visual/WaterfallContext.cpp

@@ -13,8 +13,6 @@ void WaterfallContext::Setup(int fft_size_in, int num_waterfall_lines_in) {
     waterfall_lines = num_waterfall_lines_in;
     fft_size = fft_size_in;
 
-    int half_fft_size = fft_size / 2;
-
     for (int i = 0; i < 2; i++) {
         if (waterfall[i]) {
             glDeleteTextures(1, &waterfall[i]);
@@ -23,7 +21,6 @@ void WaterfallContext::Setup(int fft_size_in, int num_waterfall_lines_in) {
 
         waterfall_ofs[i] = waterfall_lines - 1;
     }
-    // Stagger memory updates at half intervals for tiles
 }
 
 void WaterfallContext::refreshTheme() {
@@ -72,7 +69,7 @@ void WaterfallContext::Draw(std::vector<float> &points) {
 		}
 		waterfall_slice = new unsigned char[half_fft_size];
 
-        delete waterfall_tex;
+        delete[] waterfall_tex;
     }
 
     if (activeTheme != ThemeMgr::mgr.currentTheme) {
@@ -107,7 +104,6 @@ void WaterfallContext::Draw(std::vector<float> &points) {
     glGetIntegerv(GL_VIEWPORT, vp);
 
     float viewWidth = (float) vp[2];
-    float viewHeight = (float) vp[3];
 
     // some bias to prevent seams at odd scales
     float half_pixel = 1.0 / viewWidth;