New Reload source function

Generalize the reload of stream source to all types of sources. Enable OSC command to reload source.

src/CloneSource.cpp

@@ -209,6 +209,11 @@ void CloneSource::replay()
     filter_->reset();
 }
 
+void CloneSource::reload()
+{
+    replay();
+}
+
 guint64 CloneSource::playtime () const
 {
     if (filter_->type() != FrameBufferFilter::FILTER_PASSTHROUGH)

src/CloneSource.h

@@ -20,6 +20,7 @@ public:
     void play (bool on) override;
     bool playable () const  override;
     void replay () override;
+    void reload() override;
     guint64 playtime () const override;
     uint texture() const override;
     Failure failed() const override;

src/ControlManager.cpp

@@ -612,6 +612,10 @@ bool Control::receiveSourceAttribute(Source *target, const std::string &attribut
         else if ( attribute.compare(OSC_SOURCE_REPLAY) == 0) {
             target->call( new RePlay() );
         }
+        /// e.g. '/vimix/current/reload'
+        else if ( attribute.compare(OSC_SOURCE_RELOAD) == 0) {
+            target->reload();
+        }
         /// e.g. '/vimix/current/alpha f 0.3'
         else if ( attribute.compare(OSC_SOURCE_LOCK) == 0) {
             float x = 1.f;

src/ControlManager.h

@@ -38,6 +38,7 @@
 #define OSC_SOURCE_PLAY        "/play"
 #define OSC_SOURCE_PAUSE       "/pause"
 #define OSC_SOURCE_REPLAY      "/replay"
+#define OSC_SOURCE_RELOAD      "/reload"
 #define OSC_SOURCE_ALPHA       "/alpha"
 #define OSC_SOURCE_LOOM        "/loom"
 #define OSC_SOURCE_TRANSPARENCY "/transparency"

src/ImageFilter.cpp

@@ -112,7 +112,7 @@ FilteringProgram::FilteringProgram(const std::string &name, const std::string &f
 }
 
 FilteringProgram::FilteringProgram(const FilteringProgram &other) :
-    name_(other.name_), code_(other.code_), parameters_(other.parameters_), two_pass_filter_(other.two_pass_filter_)
+    name_(other.name_), code_(other.code_), two_pass_filter_(other.two_pass_filter_), parameters_(other.parameters_)
 {
 
 }

src/MediaSource.cpp

@@ -162,6 +162,11 @@ void MediaSource::replay ()
     mediaplayer_->rewind();
 }
 
+void MediaSource::reload ()
+{
+    mediaplayer_->reopen();
+}
+
 guint64 MediaSource::playtime () const
 {
     return mediaplayer_->position();

src/MediaSource.h

@@ -18,6 +18,7 @@ public:
     void play (bool) override;
     bool playable () const  override;
     void replay () override;
+    void reload () override;
     guint64 playtime () const override;
     void render() override;
     Failure failed() const override;

src/RenderSource.cpp

@@ -162,6 +162,17 @@ void RenderSource::replay ()
     reset_ = true;
 }
 
+void RenderSource::reload ()
+{
+    // reset renderbuffer_
+    if (renderbuffer_)
+        delete renderbuffer_;
+    renderbuffer_ = nullptr;
+
+    // request next frame to reset
+    reset_ = true;
+}
+
 glm::vec3 RenderSource::resolution() const
 {
     if (rendered_output_ != nullptr)

src/RenderSource.h

@@ -16,6 +16,7 @@ public:
     bool playing () const override { return !paused_; }
     void play (bool) override;
     void replay () override;
+    void reload () override;
     bool playable () const  override { return true; }
     guint64 playtime () const override { return runtime_; }
     Failure failed () const override;

src/SessionSource.cpp

@@ -277,10 +277,14 @@ void SessionFileSource::load(const std::string &p, uint level)
     path_ = p;
 
     // delete session
-    if (session_) {
+    if (session_)
         delete session_;
     session_ = nullptr;
-    }
+
+    // reset renderbuffer_
+    if (renderbuffer_)
+        delete renderbuffer_;
+    renderbuffer_ = nullptr;
 
     // init session
     if ( path_.empty() ) {
@@ -299,6 +303,11 @@ void SessionFileSource::load(const std::string &p, uint level)
     ready_ = false;
 }
 
+void SessionFileSource::reload()
+{
+    load(path_);
+}
+
 void SessionFileSource::init()
 {
     // init is first about getting the loaded session

src/SessionSource.h

@@ -44,6 +44,7 @@ public:
 
     // SessionFile Source specific interface
     void load(const std::string &p = "", uint level = 0);
+    void reload () override;
 
     inline std::string path() const { return path_; }
 

src/Source.h

@@ -184,6 +184,7 @@ public:
     virtual bool playing () const = 0;
     virtual void play (bool on) = 0;
     virtual void replay () {}
+    virtual void reload () {}
     virtual guint64 playtime () const { return 0; }
 
     // a Source shall informs if the source failed (i.e. shall be deleted)

src/StreamSource.h

@@ -34,13 +34,13 @@ public:
     void play (bool) override;
     bool playable () const  override;
     void replay () override;
+    void reload () override;
     guint64 playtime () const override;
     Failure failed() const override;
     uint texture() const override;
 
     // pure virtual interface
     virtual Stream *stream() const = 0;
-    void reload ();
 
     // Source interface
     virtual void accept (Visitor& v) override;