Cleanup and fixed implementation of clone and render sources.

CMakeLists.txt

@@ -279,6 +279,8 @@ set(VMIX_RSC_FILES
     ./rsc/mesh/circle.ply
     ./rsc/mesh/icon_video.ply
     ./rsc/mesh/icon_image.ply
+    ./rsc/mesh/icon_render.ply
+    ./rsc/mesh/icon_clone.ply
     ./rsc/mesh/icon_vimix.ply
 )
 

ImGuiVisitor.cpp

@@ -295,6 +295,11 @@ void ImGuiVisitor::visit (RenderSource& s)
 {
 //    ImGui::Button("Expand", ImVec2(IMGUI_RIGHT_ALIGN, 0));
     ImGui::Text("Render");
-    if (ImGui::Button("Reconnect", ImVec2(IMGUI_RIGHT_ALIGN, 0)) )
-        s.reconnect();
 }
+
+void ImGuiVisitor::visit (CloneSource& s)
+{
+//    ImGui::Button("Expand", ImVec2(IMGUI_RIGHT_ALIGN, 0));
+    ImGui::Text("Clone of %s", s.origin()->name());
+}
+

ImGuiVisitor.h

@@ -27,6 +27,7 @@ public:
     void visit (MediaSource& s) override;
     void visit (SessionSource& s) override;
     void visit (RenderSource& s) override;
+    void visit (CloneSource& s) override;
 };
 
 #endif // IMGUIVISITOR_H

MediaSource.cpp

@@ -55,6 +55,11 @@ bool MediaSource::failed() const
     return mediaplayer_->failed();
 }
 
+uint MediaSource::texture() const
+{
+    return mediaplayer_->texture();
+}
+
 void MediaSource::init()
 {
     if ( mediaplayer_->isOpen() ) {
@@ -70,48 +75,19 @@ void MediaSource::init()
 
             // create Frame buffer matching size of media player
             float height = float(mediaplayer()->width()) / mediaplayer()->aspectRatio();
-            renderbuffer_ = new FrameBuffer(mediaplayer()->width(), (uint)height, true);
+            FrameBuffer *renderbuffer = new FrameBuffer(mediaplayer()->width(), (uint)height, true);
 
-            // create the surfaces to draw the frame buffer in the views
+            // set the renderbuffer of the source and attach rendering nodes
-            // TODO Provide the source custom effect shader
+            attach(renderbuffer);
-            rendersurface_ = new FrameBufferSurface(renderbuffer_, blendingshader_);
-            groups_[View::RENDERING]->attach(rendersurface_);
-            groups_[View::GEOMETRY]->attach(rendersurface_);
-            groups_[View::MIXING]->attach(rendersurface_);
-            groups_[View::LAYER]->attach(rendersurface_);
 
-            // for mixing view, add another surface to overlay (for stippled view in transparency)
+            // icon in mixing view
-            Surface *surfacemix = new FrameBufferSurface(renderbuffer_);
-            ImageShader *is = static_cast<ImageShader *>(surfacemix->shader());
-            if (is)  is->stipple = 1.0;
-            groups_[View::MIXING]->attach(surfacemix);
-            groups_[View::LAYER]->attach(surfacemix);
             if (mediaplayer_->duration() == GST_CLOCK_TIME_NONE)
                 overlays_[View::MIXING]->attach( new Mesh("mesh/icon_image.ply") );
             else
                 overlays_[View::MIXING]->attach( new Mesh("mesh/icon_video.ply") );
 
-            // scale all mixing nodes to match aspect ratio of the media
+            // done init
-            for (NodeSet::iterator node = groups_[View::MIXING]->begin();
-                 node != groups_[View::MIXING]->end(); node++) {
-                (*node)->scale_.x = mediaplayer_->aspectRatio();
-            }
-            for (NodeSet::iterator node = groups_[View::GEOMETRY]->begin();
-                 node != groups_[View::GEOMETRY]->end(); node++) {
-                (*node)->scale_.x = mediaplayer_->aspectRatio();
-            }
-            for (NodeSet::iterator node = groups_[View::LAYER]->begin();
-                 node != groups_[View::LAYER]->end(); node++) {
-                (*node)->scale_.x = mediaplayer_->aspectRatio();
-            }
-
-            // done init once and for all
             initialized_ = true;
-            // make visible
-            groups_[View::RENDERING]->visible_ = true;
-            groups_[View::MIXING]->visible_ = true;
-            groups_[View::GEOMETRY]->visible_ = true;
-            groups_[View::LAYER]->visible_ = true;
         }
     }
 

MediaSource.h

@@ -11,8 +11,9 @@ public:
 
     // implementation of source API
     void render() override;
-    void accept (Visitor& v) override;
     bool failed() const override;
+    uint texture() const override;
+    void accept (Visitor& v) override;
 
     // Media specific interface
     void setPath(const std::string &p);

Mixer.cpp

@@ -196,7 +196,7 @@ void Mixer::createSourceFile(std::string path)
     }
     else {
         // (try to) create media source by default
-        MediaSource *ms = new MediaSource();
+        MediaSource *ms = new MediaSource;
         ms->setPath(path);
         s = ms;
     }
@@ -224,6 +224,22 @@ void Mixer::createSourceRender()
     insertSource(s);
 }
 
+void Mixer::createSourceClone(std::string namesource)
+{
+    SourceList::iterator origin = session_->find(namesource);
+    if (origin != session_->end()) {
+
+        // create a source
+        CloneSource *s = (*origin)->clone();
+
+        // get new name
+        renameSource(s, (*origin)->name());
+
+        // add to mixer
+        insertSource(s);
+    }
+}
+
 void Mixer::insertSource(Source *s)
 {
     // Add source to Session and set it as current

Mixer.h

@@ -36,7 +36,7 @@ public:
     // manangement of sources
     void createSourceFile(std::string path);
     void createSourceRender();
-    void createSourceClone() {}
+    void createSourceClone(std::string namesource);
 
     // operations on sources
     void renameSource(Source *s, const std::string &newname);

SessionSource.cpp

@@ -15,6 +15,7 @@
 #include "SearchVisitor.h"
 #include "Session.h"
 #include "SessionCreator.h"
+#include "Mixer.h"
 
 
 void SessionSource::loadSession(const std::string& filename, SessionSource *source)
@@ -92,6 +93,11 @@ bool SessionSource::failed() const
     return loadFailed_;
 }
 
+uint SessionSource::texture() const
+{
+    return session_->frame()->texture();
+}
+
 void SessionSource::init()
 {
     if ( loadFinished_ && !loadFailed_ ) {
@@ -107,47 +113,17 @@ void SessionSource::init()
         sessionsurface_->setTextureIndex( session_->frame()->texture() );
 
         // create Frame buffer matching size of session
-        renderbuffer_ = new FrameBuffer( session_->frame()->resolution());
+        FrameBuffer *renderbuffer = new FrameBuffer( session_->frame()->resolution());
 
-        // create the surfaces to draw the frame buffer in the views
+        // set the renderbuffer of the source and attach rendering nodes
-        rendersurface_ = new FrameBufferSurface(renderbuffer_, blendingshader_);
+        attach(renderbuffer);
-        groups_[View::RENDERING]->attach(rendersurface_);
-        groups_[View::GEOMETRY]->attach(rendersurface_);
-        groups_[View::MIXING]->attach(rendersurface_);
-        groups_[View::LAYER]->attach(rendersurface_);
 
-        // for mixing view, add another surface to overlay (for stippled view in transparency)
+        // icon in mixing view
-        Surface *surfacemix = new FrameBufferSurface(renderbuffer_);
-        ImageShader *is = static_cast<ImageShader *>(surfacemix->shader());
-        if (is)  is->stipple = 1.0;
-        groups_[View::MIXING]->attach(surfacemix);
-        groups_[View::LAYER]->attach(surfacemix);
-        // icon session
         overlays_[View::MIXING]->attach( new Mesh("mesh/icon_vimix.ply") );
 
-        // scale all mixing nodes to match aspect ratio of the media
+        // done init
-        for (NodeSet::iterator node = groups_[View::MIXING]->begin();
-             node != groups_[View::MIXING]->end(); node++) {
-            (*node)->scale_.x = session_->frame()->aspectRatio();
-        }
-        for (NodeSet::iterator node = groups_[View::GEOMETRY]->begin();
-             node != groups_[View::GEOMETRY]->end(); node++) {
-            (*node)->scale_.x = session_->frame()->aspectRatio();
-        }
-        for (NodeSet::iterator node = groups_[View::LAYER]->begin();
-             node != groups_[View::LAYER]->end(); node++) {
-            (*node)->scale_.x = session_->frame()->aspectRatio();
-        }
-
-        // done init once and for all
         initialized_ = true;
 
-        // make visible
-        groups_[View::RENDERING]->visible_ = true;
-        groups_[View::MIXING]->visible_ = true;
-        groups_[View::GEOMETRY]->visible_ = true;
-        groups_[View::LAYER]->visible_ = true;
-
         Log::Info("Source Session %s loading %d sources.", path_.c_str(), session_->numSource());
     }
 }
@@ -155,14 +131,12 @@ void SessionSource::init()
 void SessionSource::render()
 {
     if (!initialized_)
-    {
         init();
-    }
     else {
         // update session
         session_->update(dt_);
 
-        // render the media player into frame buffer
+        // render the sesion into frame buffer
         static glm::mat4 projection = glm::ortho(-1.f, 1.f, -1.f, 1.f, -1.f, 1.f);
         renderbuffer_->begin();
         sessionsurface_->draw(glm::identity<glm::mat4>(), projection);
@@ -176,3 +150,69 @@ void SessionSource::accept(Visitor& v)
     v.visit(*this);
 }
 
+
+RenderSource::RenderSource() : Source()
+{
+    // create  surface:
+    sessionsurface_ = new Surface(rendershader_);
+}
+
+RenderSource::~RenderSource()
+{
+    // delete surface
+    delete sessionsurface_;
+}
+
+bool RenderSource::failed() const
+{
+    return Mixer::manager().session() == nullptr;
+}
+
+uint RenderSource::texture() const
+{
+    return Mixer::manager().session()->frame()->texture();
+}
+
+void RenderSource::init()
+{
+    Session *session = Mixer::manager().session();
+    if (session && session->frame()->texture() != Resource::getTextureBlack()) {
+
+        // get the texture index from framebuffer of view, apply it to the surface
+        sessionsurface_->setTextureIndex( session->frame()->texture() );
+
+        // create Frame buffer matching size of output session
+        FrameBuffer *renderbuffer = new FrameBuffer( session->frame()->resolution());
+
+        // set the renderbuffer of the source and attach rendering nodes
+        attach(renderbuffer);
+
+        // icon in mixing view
+        overlays_[View::MIXING]->attach( new Mesh("mesh/icon_render.ply") );
+
+        // done init
+        initialized_ = true;
+
+        Log::Info("Source Render linked to session (%d x %d).", int(session->frame()->resolution().x), int(session->frame()->resolution().y) );
+    }
+}
+
+void RenderSource::render()
+{
+    if (!initialized_)
+        init();
+    else {
+        // render the view into frame buffer
+        static glm::mat4 projection = glm::ortho(-1.f, 1.f, -1.f, 1.f, -1.f, 1.f);
+        renderbuffer_->begin();
+        sessionsurface_->draw(glm::identity<glm::mat4>(), projection);
+        renderbuffer_->end();
+    }
+}
+
+
+void RenderSource::accept(Visitor& v)
+{
+    Source::accept(v);
+    v.visit(*this);
+}

SessionSource.h

@@ -12,8 +12,9 @@ public:
 
     // implementation of source API
     void render() override;
-    void accept (Visitor& v) override;
     bool failed() const override;
+    uint texture() const override;
+    void accept (Visitor& v) override;
 
     // Session Source specific interface
     void load(const std::string &p);
@@ -34,4 +35,25 @@ protected:
     std::atomic<bool> loadFailed_;
     std::atomic<bool> loadFinished_;
 };
+
+
+class RenderSource : public Source
+{
+public:
+    RenderSource();
+    ~RenderSource();
+
+    // implementation of source API
+    void render() override;
+    bool failed() const override;
+    uint texture() const override;
+    void accept (Visitor& v) override;
+
+protected:
+
+    void init() override;
+    Surface *sessionsurface_;
+};
+
+
 #endif // SESSIONSOURCE_H

Source.cpp

@@ -14,7 +14,6 @@
 #include "ImageShader.h"
 #include "ImageProcessingShader.h"
 #include "Log.h"
-#include "Mixer.h"
 
 Source::Source() : initialized_(false), need_update_(true)
 {
@@ -114,6 +113,8 @@ Source::~Source()
     groups_.clear();
     overlays_.clear();
 
+    for (auto it = clones_.begin(); it != clones_.end(); it++)
+        (*it)->origin_ = nullptr;
 }
 
 void Source::setName (const std::string &name)
@@ -135,6 +136,46 @@ void Source::setOverlayVisible(bool on)
         (*o).second->visible_ = on;
 }
 
+void Source::attach(FrameBuffer *renderbuffer)
+{
+    renderbuffer_ = renderbuffer;
+
+    // create the surfaces to draw the frame buffer in the views
+    // TODO Provide the source custom effect shader
+    rendersurface_ = new FrameBufferSurface(renderbuffer_, blendingshader_);
+    groups_[View::RENDERING]->attach(rendersurface_);
+    groups_[View::GEOMETRY]->attach(rendersurface_);
+    groups_[View::MIXING]->attach(rendersurface_);
+    groups_[View::LAYER]->attach(rendersurface_);
+
+    // for mixing view, add another surface to overlay (for stippled view in transparency)
+    Surface *surfacemix = new FrameBufferSurface(renderbuffer_);
+    ImageShader *is = static_cast<ImageShader *>(surfacemix->shader());
+    if (is)  is->stipple = 1.0;
+    groups_[View::MIXING]->attach(surfacemix);
+    groups_[View::LAYER]->attach(surfacemix);
+
+    // scale all mixing nodes to match aspect ratio of the media
+    for (NodeSet::iterator node = groups_[View::MIXING]->begin();
+         node != groups_[View::MIXING]->end(); node++) {
+        (*node)->scale_.x = renderbuffer_->aspectRatio();
+    }
+    for (NodeSet::iterator node = groups_[View::GEOMETRY]->begin();
+         node != groups_[View::GEOMETRY]->end(); node++) {
+        (*node)->scale_.x = renderbuffer_->aspectRatio();
+    }
+    for (NodeSet::iterator node = groups_[View::LAYER]->begin();
+         node != groups_[View::LAYER]->end(); node++) {
+        (*node)->scale_.x = renderbuffer_->aspectRatio();
+    }
+
+    // make visible
+    groups_[View::RENDERING]->visible_ = true;
+    groups_[View::MIXING]->visible_ = true;
+    groups_[View::GEOMETRY]->visible_ = true;
+    groups_[View::LAYER]->visible_ = true;
+}
+
 void Source::update(float dt)
 {
     // keep delta-t
@@ -187,7 +228,6 @@ Handles *Source::handleNode(Handles::Type t) const
         return resize_handle_;
 }
 
-
 bool hasNode::operator()(const Source* elem) const
 {
     if (elem)
@@ -209,95 +249,72 @@ bool hasNode::operator()(const Source* elem) const
     return false;
 }
 
-
+CloneSource *Source::clone()
-RenderSource::RenderSource() : Source()
 {
-    // create  surface:
+    CloneSource *s = new CloneSource(this);
-    sessionsurface_ = new Surface(rendershader_);
 
+    clones_.push_back(s);
+
+    return s;
 }
 
-RenderSource::~RenderSource()
+CloneSource::CloneSource(Source *origin) : Source(), origin_(origin)
+{
+    // create surface:
+    clonesurface_ = new Surface(rendershader_);
+}
+
+CloneSource::~CloneSource()
 {
     // delete surface
-    delete sessionsurface_;
+    delete clonesurface_;
 }
 
-void RenderSource::reconnect()
+CloneSource *CloneSource::clone()
 {
-    sessionsurface_->setTextureIndex( Mixer::manager().session()->frame()->texture() );
+    // do not clone a clone : clone the original instead
+    return origin_->clone();
 }
 
-void RenderSource::init()
+void CloneSource::init()
 {
-    Session *session = Mixer::manager().session();
+    if (origin_ && origin_->texture() != Resource::getTextureBlack()) {
-
-    if (session && session->frame()->texture() != Resource::getTextureBlack()) {
 
         // get the texture index from framebuffer of view, apply it to the surface
-        sessionsurface_->setTextureIndex( session->frame()->texture() );
+        clonesurface_->setTextureIndex( origin_->texture() );
 
         // create Frame buffer matching size of session
-        renderbuffer_ = new FrameBuffer( session->frame()->resolution());
+        FrameBuffer *renderbuffer = new FrameBuffer( origin_->frame()->resolution(), true);
 
-        // create the surfaces to draw the frame buffer in the views
+        // set the renderbuffer of the source and attach rendering nodes
-        rendersurface_ = new FrameBufferSurface(renderbuffer_, blendingshader_);
+        attach(renderbuffer);
-        groups_[View::RENDERING]->attach(rendersurface_);
-        groups_[View::GEOMETRY]->attach(rendersurface_);
-        groups_[View::MIXING]->attach(rendersurface_);
-        groups_[View::LAYER]->attach(rendersurface_);
 
-        // for mixing view, add another surface to overlay (for stippled view in transparency)
+        // icon in mixing view
-        Surface *surfacemix = new FrameBufferSurface(renderbuffer_);
+        overlays_[View::MIXING]->attach( new Mesh("mesh/icon_clone.ply") );
-        ImageShader *is = static_cast<ImageShader *>(surfacemix->shader());
-        if (is)  is->stipple = 1.0;
-        groups_[View::MIXING]->attach(surfacemix);
-        groups_[View::LAYER]->attach(surfacemix);
-        // TODO icon session
 
-        // scale all mixing nodes to match aspect ratio of the media
+        // done init
-        for (NodeSet::iterator node = groups_[View::MIXING]->begin();
-             node != groups_[View::MIXING]->end(); node++) {
-            (*node)->scale_.x = session->frame()->aspectRatio();
-        }
-        for (NodeSet::iterator node = groups_[View::GEOMETRY]->begin();
-             node != groups_[View::GEOMETRY]->end(); node++) {
-            (*node)->scale_.x = session->frame()->aspectRatio();
-        }
-        for (NodeSet::iterator node = groups_[View::LAYER]->begin();
-             node != groups_[View::LAYER]->end(); node++) {
-            (*node)->scale_.x = session->frame()->aspectRatio();
-        }
-
-        // done init once and for all
         initialized_ = true;
 
-        // make visible
+        Log::Info("Source Clone linked to source %s).", origin_->name().c_str() );
-        groups_[View::RENDERING]->visible_ = true;
-        groups_[View::MIXING]->visible_ = true;
-        groups_[View::GEOMETRY]->visible_ = true;
-        groups_[View::LAYER]->visible_ = true;
-
-        Log::Info("Source Render linked to session (%d x %d).", int(session->frame()->resolution().x), int(session->frame()->resolution().y) );
     }
 }
 
-void RenderSource::render()
+void CloneSource::render()
 {
     if (!initialized_)
         init();
     else {
         // render the view into frame buffer
-        static glm::mat4 projection = glm::ortho(-1.f, 1.f, -1.f, 1.f, -1.f, 1.f);
+        static glm::mat4 projection = glm::ortho(-1.f, 1.f, 1.f, -1.f, -1.f, 1.f);
         renderbuffer_->begin();
-        sessionsurface_->draw(glm::identity<glm::mat4>(), projection);
+        clonesurface_->draw(glm::identity<glm::mat4>(), projection);
         renderbuffer_->end();
     }
 }
 
-
+void CloneSource::accept(Visitor& v)
-void RenderSource::accept(Visitor& v)
 {
     Source::accept(v);
     v.visit(*this);
 }
+

Source.h

@@ -16,6 +16,11 @@ class MediaPlayer;
 class Surface;
 class Session;
 class Frame;
+class Source;
+class CloneSource;
+
+typedef std::list<Source *> SourceList;
+typedef std::list<CloneSource *> CloneList;
 
 class Source
 {
@@ -30,6 +35,9 @@ public:
     inline std::string name () const { return name_; }
     inline const char *initials() const { return initials_; }
 
+    // cloning mechanism
+    virtual CloneSource *clone();
+
     // an overlay can be displayed on top of the source
     virtual void setOverlayVisible(bool on);
 
@@ -44,6 +52,9 @@ public:
     // a Source has a shader to control mixing effects
     inline ImageShader *blendingShader() const { return blendingshader_; }
 
+    // every Source has a frame buffer from the renderbuffer
+    virtual FrameBuffer *frame() const;
+
     // touch to request update
     inline void touch() { need_update_ = true; }
 
@@ -53,15 +64,13 @@ public:
     // accept all kind of visitors
     virtual void accept (Visitor& v);
 
-    // SPECIFIC implementation for subtypes
-
     // a Source shall informs if the source failed (i.e. shall be deleted)
-    virtual bool failed() const { return false; }
+    virtual bool failed() const = 0;
 
-    // every Source shall have a frame buffer
+    // a Source shall define a way to get a texture
-    virtual FrameBuffer *frame() const;
+    virtual uint texture() const = 0;
 
-    // every Source shall be rendered into the frame buffer
+    // a Source shall define how to render into the frame buffer
     virtual void render() = 0;
 
 protected:
@@ -79,6 +88,7 @@ protected:
     // render() fills in the renderbuffer at every frame
     // NB: rendershader_ is applied at render()
     FrameBuffer *renderbuffer_;
+    void attach(FrameBuffer *renderbuffer);
 
     // the rendersurface draws the renderbuffer in the scene
     // It is associated to the rendershader for mixing effects
@@ -94,16 +104,14 @@ protected:
     std::map<View::Mode, Group*> overlays_;
     Handles *resize_handle_, *resize_H_handle_, *resize_V_handle_, *rotate_handle_;
 
-    // update need
+    // update
     bool need_update_;
     float dt_;
+
+    // clones
+    CloneList clones_;
 };
 
-// TODO SourceSet sorted by shader
-// so that the render loop avoid switching
-typedef std::list<Source *> SourceList;
-
-
 struct hasName: public std::unary_function<Source*, bool>
 {
     inline bool operator()(const Source* elem) const {
@@ -125,22 +133,28 @@ private:
 };
 
 
-class RenderSource : public Source
+class CloneSource : public Source
 {
+    friend class Source;
+
 public:
-    RenderSource();
+    CloneSource(Source *origin);
-    ~RenderSource();
+    ~CloneSource();
 
     // implementation of source API
     void render() override;
+    uint texture() const override { return origin_->texture(); }
+    bool failed() const override  { return origin_ == nullptr; }
     void accept (Visitor& v) override;
 
-    void reconnect();
+    CloneSource *clone();
+    inline Source *origin() const { return origin_; }
 
 protected:
 
     void init() override;
-    Surface *sessionsurface_;
+    Surface *clonesurface_;
+    Source *origin_;
 };
 
 

UserInterfaceManager.cpp

@@ -1131,7 +1131,8 @@ void Navigator::RenderNewPannel()
             ImGui::Text(" ");
             if ( ImGui::Button("Create !", ImVec2(pannel_width - padding_width, 0)) ) {
 
-                Mixer::manager().createSourceRender();
+                Mixer::manager().createSourceClone("toto");
+//                Mixer::manager().createSourceRender();
                 selected_button[NAV_NEW] = false;
             }
 

rsc/mesh/icon_clone.ply

@@ -0,0 +1,192 @@
+ply
+format ascii 1.0
+comment Created by Blender 2.82 (sub 7) - www.blender.org, source file: 'icons.blend'
+element vertex 92
+property float x
+property float y
+property float z
+element face 90
+property list uchar uint vertex_indices
+end_header
+-0.116905 1.125589 0.000000
+-0.100567 1.256263 0.000000
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+0.010585 1.171952 0.000000
+-0.019773 1.164448 0.000000
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