test code for getting texture from a node

dialogs/newsequencedialog.cpp

@@ -112,7 +112,8 @@ void NewSequenceDialog::accept() {
     s->set_audio_layout(AV_CH_LAYOUT_STEREO);
 
     // FIXME: TEST CODE
-    new NodeMedia(s.get());
+    NodeMedia* m = new NodeMedia(s.get());
+    s->texture_io = m->texture_output();
     // END TEST CODE
 
     ComboAction* ca = new ComboAction();

timeline/sequence.cpp

@@ -150,8 +150,11 @@ long Sequence::GetEndFrame() {
   const QObjectList& all_tracks = children();
 
   for (int i=0;i<all_tracks.size();i++) {
-    Track* t = static_cast<Track*>(all_tracks.at(i));
-    end_frame = qMax(t->GetEndFrame(), end_frame);
+    Track* t = dynamic_cast<Track*>(all_tracks.at(i));
+
+    if (t != nullptr) {
+      end_frame = qMax(t->GetEndFrame(), end_frame);
+    }
   }
 
   return end_frame;
@@ -165,7 +168,11 @@ QVector<Clip *> Sequence::GetAllClips()
 
   for (int j=0;j<tracks.size();j++) {
 
-    all_clips.append(static_cast<Track*>(tracks.at(j))->GetAllClips());
+    Track* t = dynamic_cast<Track*>(tracks.at(j));
+
+    if (t != nullptr) {
+      all_clips.append(t->GetAllClips());
+    }
 
   }
 
@@ -188,6 +195,11 @@ QVector<Track *> Sequence::GetTrackList(olive::TrackType type)
   return tracks;
 }
 
+GLuint Sequence::texture()
+{
+  return texture_io->GetValue().value<GLuint>();
+}
+
 void Sequence::Close()
 {
   QVector<Clip*> all_clips = GetAllClips();

timeline/sequence.h

@@ -124,6 +124,11 @@ public:
   int TrackCount(olive::TrackType type);
   QVector<Track*> GetTrackList(olive::TrackType type);
 
+  // FIXME: TEST CODE
+  GLuint texture();
+  NodeIO* texture_io;
+  // END TEST CODE
+
   long playhead;
 
   bool using_workarea;

ui/viewerwidget.cpp

@@ -723,6 +723,33 @@ void ViewerWidget::draw_gizmos() {
 }
 
 void ViewerWidget::paintGL() {
+
+  if (viewer->seq != nullptr) {
+
+    QOpenGLFunctions* f = context()->functions();
+
+    makeCurrent();
+
+    // clear to solid black
+    f->glClearColor(0.0, 0.0, 0.0, 0.0);
+    f->glClear(GL_COLOR_BUFFER_BIT);
+
+
+    // draw texture from render thread
+
+    f->glViewport(0, 0, width(), height());
+
+    f->glBindTexture(GL_TEXTURE_2D, viewer->seq->texture());
+
+    qDebug() << "drawing texture" << viewer->seq->texture();
+
+    olive::rendering::Blit(pipeline_.get(), true, get_matrix());
+
+    f->glBindTexture(GL_TEXTURE_2D, 0);
+
+  }
+
+  /*
   if (waveform) {
     draw_waveform_func();
   } else {
@@ -771,4 +798,5 @@ void ViewerWidget::paintGL() {
       renderer.start_render(context(), viewer->seq.get(), viewer->get_playback_speed());
     }
   }
+  */
 }