Fix unused variables

In almost all cases these can be removed. The only exception is in
ShaderViewer.cpp, where regIdx should have been used.

qrenderdoc/Code/CaptureContext.cpp

@@ -86,8 +86,6 @@ CaptureContext::CaptureContext(QString paramFilename, QString remoteHost, uint32
 
   if(!paramFilename.isEmpty())
   {
-    QFileInfo fi(paramFilename);
-
     m_MainWindow->LoadFromFilename(paramFilename, temp);
     if(temp)
       m_MainWindow->takeCaptureOwnership();

qrenderdoc/Code/Interface/CommonPipelineState.cpp

@@ -461,8 +461,6 @@ ResourceId CommonPipelineState::GetShader(ShaderStage stage)
 
 QString CommonPipelineState::GetShaderName(ShaderStage stage)
 {
-  QString ret;
-
   if(IsCaptureLoaded())
   {
     if(IsCaptureD3D11())

qrenderdoc/Code/pyrenderdoc/PythonContext.cpp

@@ -410,10 +410,6 @@ PythonContext::PythonContext(QObject *parent) : QObject(parent)
   // clone our own local context
   context_namespace = PyDict_Copy(main_dict);
 
-  QString typeStr;
-  QString valueStr;
-  QList<QString> frames;
-
   // for compatibility with earlier versions of python that took a char * instead of const char *
   char noparams[1] = "";
 
@@ -873,4 +869,4 @@ extern "C" void SetThreadBlocking(PyObject *global_handle, bool block)
   OutputRedirector *redirector = (OutputRedirector *)global_handle;
   if(redirector && redirector->context)
     return redirector->context->setThreadBlocking(block);
-}
+}

qrenderdoc/Widgets/Extended/RDHeaderView.cpp

@@ -835,7 +835,6 @@ void RDHeaderView::paintSection(QPainter *painter, const QRect &rect, int sectio
   else
     opt.state &= ~(QStyle::State_Active | QStyle::State_HasFocus);
 
-  QVariant textAlignment = m->headerData(section, orientation(), Qt::TextAlignmentRole);
   opt.rect = rect;
   opt.section = section;
   opt.textAlignment = defaultAlignment();

qrenderdoc/Windows/BufferViewer.cpp

@@ -2264,8 +2264,6 @@ void BufferViewer::configureMeshColumns()
   else
     m_ModelVSIn->numRows = draw->numIndices;
 
-  QVector<BoundVBuffer> vbs = m_Ctx.CurPipelineState().GetVBuffers();
-
   Viewport vp = m_Ctx.CurPipelineState().GetViewport(0);
 
   m_Config.fov = ui->fovGuess->value();

qrenderdoc/Windows/Dialogs/TextureSaveDialog.cpp

@@ -529,7 +529,6 @@ void TextureSaveDialog::on_browse_clicked()
   QString filename =
       RDDialog::getSaveFileName(this, tr("Save Texture As"), QString(), filter, selectedFilter);
 
-  QFileInfo checkFile(filename);
   if(!filename.isEmpty())
   {
     ui->filename->setText(filename);

qrenderdoc/Windows/MainWindow.cpp

@@ -1723,7 +1723,6 @@ void MainWindow::on_action_Settings_triggered()
 void MainWindow::on_action_View_Documentation_triggered()
 {
   QFileInfo fi(QGuiApplication::applicationFilePath());
-  QDir curDir = QFileInfo(QGuiApplication::applicationFilePath()).absoluteDir();
 
   if(fi.absoluteDir().exists(lit("renderdoc.chm")))
     QDesktopServices::openUrl(

qrenderdoc/Windows/ShaderViewer.cpp

@@ -515,7 +515,7 @@ void ShaderViewer::debugShader(const ShaderBindpointMapping *bind, const ShaderR
             s.systemValue == ShaderBuiltin::Undefined ? QString::number(s.regIndex) : lit("-");
 
         ui->inputSig->addTopLevelItem(new RDTreeWidgetItem(
-            {name, semIdx, QString::number(s.regIndex), TypeString(s), ToQStr(s.systemValue),
+            {name, semIdx, regIdx, TypeString(s), ToQStr(s.systemValue),
              GetComponentString(s.regChannelMask), GetComponentString(s.channelUsedMask)}));
       }
 

qrenderdoc/Windows/TimelineBar.cpp

@@ -858,7 +858,6 @@ void TimelineBar::paintMarkers(QPainter &p, const QVector<Marker> &markers,
     if(elided == tooshort)
       elided = QString();
 
-    QRectF textRect = r;
     r.setLeft(qRound(r.left() + margin));
 
     p.drawText(r, elided, to);