Attempt implementing seek while frozen, doesn't work too well like this...Don't use opengl stuff at all if the opengl module isn't set available.

Source/PS_Source/StretchSource.cpp

@@ -246,13 +246,20 @@ void StretchAudioSource::getNextAudioBlock(const AudioSourceChannelInfo & buffer
 	if (m_stretchoutringbuf.available() > 0)
 		m_output_has_begun = true;
 	bool freezing = m_freezing;
-	
+	if (m_do_freeze_seek == true)
-    if (m_stretchers[0]->isFreezing() != freezing)
+	{
+		freezing = false;
+		m_stretchoutringbuf.clear();
+		m_firstbuffer = true;
+	}
+	if (m_stretchers[0]->isFreezing() != freezing)
 	{
 		if (freezing == true && m_inputfile!=nullptr)
 			m_freeze_pos = 1.0/m_inputfile->info.nsamples*m_inputfile->getCurrentPosition();
 		for (auto& e : m_stretchers)
-			e->set_freezing(m_freezing);
+		{
+			e->set_freezing(freezing);
+		}
 	}
     
 	
@@ -381,6 +388,12 @@ void StretchAudioSource::getNextAudioBlock(const AudioSourceChannelInfo & buffer
 		//Logger::writeToLog("Rerunning resampler task");
 		resamplertask();
 	}
+	if (m_do_freeze_seek == true)
+	{
+		for (auto& e : m_stretchers)
+			e->set_freezing(true);
+		m_do_freeze_seek = false;
+	}
 	bool source_ended = m_inputfile->hasEnded();
 	double samplelimit = 16384.0;
 	if (m_clip_output == true)
@@ -666,6 +679,8 @@ bool StretchAudioSource::isPaused() const
 void StretchAudioSource::seekPercent(double pos)
 {
 	ScopedLock locker(m_cs);
+	if (m_freezing == true)
+		m_do_freeze_seek = true;
 	m_seekpos = pos;
 	//m_resampler->Reset();
 	m_inputfile->seek(pos);

Source/PS_Source/StretchSource.h

@@ -130,7 +130,7 @@ private:
 	double m_seekpos = 0.0;
 	
 	bool m_freezing = false;
-	
+	bool m_do_freeze_seek = false;
 	int m_pause_state = 0;
 	Range<double> m_playrange{ 0.0,1.0 };
 	int64_t m_rand_count = 0;

Source/PluginEditor.cpp

@@ -505,8 +505,10 @@ void PaulstretchpluginAudioProcessorEditor::showSettingsMenu()
 WaveformComponent::WaveformComponent(AudioFormatManager* afm, AudioThumbnail* thumb)
 {
 	TimeSelectionChangedCallback = [](Range<double>, int) {};
+#ifdef JUCE_MODULE_AVAILABLE_juce_opengl
 	if (m_use_opengl == true)
 		m_ogl.attachTo(*this);
+#endif
 	m_thumbnail = thumb;
 	m_thumbnail->addChangeListener(this);
 	setOpaque(true);
@@ -514,8 +516,10 @@ WaveformComponent::WaveformComponent(AudioFormatManager* afm, AudioThumbnail* th
 
 WaveformComponent::~WaveformComponent()
 {
+#ifdef JUCE_MODULE_AVAILABLE_juce_opengl
 	if (m_use_opengl == true)
 		m_ogl.detach();
+#endif
 	m_thumbnail->removeChangeListener(this);
 }
 

Source/PluginEditor.h

@@ -165,8 +165,10 @@ private:
 	std::pair<Range<double>, Range<double>> m_file_cached;
 	bool m_image_dirty = false;
 	Image m_waveimage;
+#ifdef JUCE_MODULE_AVAILABLE_juce_opengl
 	OpenGLContext m_ogl;
 	bool m_use_opengl = false;
+#endif
 	double m_rec_pos = 0.0;
 	bool m_lock_timesel_set = false;
     bool m_using_audio_buffer = false;

paulstretchplugin.jucer

@@ -69,7 +69,6 @@
         <MODULEPATH id="juce_gui_basics" path="../JUCE/modules"/>
         <MODULEPATH id="juce_gui_extra" path="../JUCE/modules"/>
         <MODULEPATH id="juce_cryptography" path="../JUCE/modules"/>
-        <MODULEPATH id="juce_opengl" path="../JUCE/modules"/>
         <MODULEPATH id="juce_audio_basics" path="../JUCE/modules"/>
         <MODULEPATH id="juce_audio_devices" path="../JUCE/modules"/>
         <MODULEPATH id="juce_audio_formats" path="../JUCE/modules"/>
@@ -99,7 +98,6 @@
         <MODULEPATH id="juce_gui_basics" path="../JUCE/modules"/>
         <MODULEPATH id="juce_gui_extra" path="../JUCE/modules"/>
         <MODULEPATH id="juce_cryptography" path="../JUCE/modules"/>
-        <MODULEPATH id="juce_opengl" path="../JUCE/modules"/>
         <MODULEPATH id="juce_audio_basics" path="../JUCE/modules"/>
         <MODULEPATH id="juce_audio_devices" path="../JUCE/modules"/>
         <MODULEPATH id="juce_audio_formats" path="../JUCE/modules"/>
@@ -123,7 +121,6 @@
         <MODULEPATH id="juce_gui_basics" path="../JUCE/modules"/>
         <MODULEPATH id="juce_gui_extra" path="../JUCE/modules"/>
         <MODULEPATH id="juce_cryptography" path="../JUCE/modules"/>
-        <MODULEPATH id="juce_opengl" path="../JUCE/modules"/>
         <MODULEPATH id="juce_audio_basics" path="../JUCE/modules"/>
         <MODULEPATH id="juce_audio_devices" path="../JUCE/modules"/>
         <MODULEPATH id="juce_audio_formats" path="../JUCE/modules"/>
@@ -148,7 +145,6 @@
     <MODULE id="juce_graphics" showAllCode="1" useLocalCopy="0" useGlobalPath="1"/>
     <MODULE id="juce_gui_basics" showAllCode="1" useLocalCopy="0" useGlobalPath="1"/>
     <MODULE id="juce_gui_extra" showAllCode="1" useLocalCopy="0" useGlobalPath="1"/>
-    <MODULE id="juce_opengl" showAllCode="1" useLocalCopy="0" useGlobalPath="1"/>
   </MODULES>
   <JUCEOPTIONS JUCE_QUICKTIME="disabled"/>
 </JUCERPROJECT>