README updates, prevent changing FFT while processing it

.travis.yml

@@ -18,8 +18,8 @@ script:
 deploy:
   provider: releases
   api_key:
-    secure: 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
-  file: build/ChannelSpanner-Linux.tar.gz
+    secure: "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"
+  file: ChannelSpanner-Linux.tar.gz
   skip_cleanup: true
   draft: true
   overwrite: true

README.md

@@ -1,4 +1,8 @@
-# ChannelSpanner
+# Channel Spanner
+
+[![Build Status](https://travis-ci.org/cameronleger/channelspanner.svg?branch=master)](https://travis-ci.org/cameronleger/channelspanner)
+
+![Example Screenshot for Channel Spanner](/screenshot.jpg?raw=true "Example Screenshot for Channel Spanner")
 
 This VST2 Plugin aims to be a quick, light, and no-fuss multi-track Spectrum Analyzer. To that end, simply add multiple instances of this plugin, possibly tweak some parameters in your host, and enjoy! Use it for visualizing each bus, each lead, or even before and after an effect chain.
 

src/process.c

@@ -74,6 +74,7 @@ void free_sample_data( track_t* track )
 void update_frame_size( track_t* track, size_t frameSize )
 {
    if ( NULL == track ) return;
+   if ( track->frameSize == frameSize ) return;
 
    free_working_area( track );
    track->frameSize = frameSize;

src/vst2.cpp

@@ -136,11 +136,6 @@ class VSTPluginWrapper
       ctx = nullptr;
    }
 
-   void updateFFTSize()
-   {
-      update_frame_size( track, FFT_SCALER(fftScale) );
-   }
-
    void updateTrack()
    {
       process_samples( track, reactivity );
@@ -149,7 +144,7 @@ class VSTPluginWrapper
 
    void openEditor( void* wnd )
    {
-      if ( nullptr != lglw )
+      if ( nullptr == lglw )
       {
          lglw = lglw_init( editor_rect.right, editor_rect.bottom );
          lglw_userdata_set( lglw, this );
@@ -240,8 +235,6 @@ class VSTPluginWrapper
       case 0:
       {
          fftScale = (uint8_t) roundf( value * FFT_SCALE_MAX );
-         if ( track->frameSize != FFT_SCALER( fftScale ) )
-            updateFFTSize();
          break;
       }
       case 1:
@@ -562,6 +555,8 @@ void VSTPluginProcessSamplesFloat32( AEffect* vstPlugin, float** inputs, float**
 
    track_t* track = wrapper->getTrack();
 
+   update_frame_size( track, FFT_SCALER( wrapper->fftScale ) );
+
    for ( int i = 0; i < wrapper->getNumInputs() && i < MAX_CHANNELS; ++i )
    {
       auto inputSamples = inputs[i];
@@ -1005,6 +1000,7 @@ VSTPluginWrapper::VSTPluginWrapper( audioMasterCallback vstHostCallback,
 
    track = nullptr;
    ctx = nullptr;
+   lglw = nullptr;
 }
 
 VSTPluginWrapper::~VSTPluginWrapper()