Implements #287 independent rendering

applications/gui/src/camera.cpp

@@ -276,9 +276,9 @@ void ftl::gui::Camera::update(ftl::rgbd::FrameSet &fs) {
 		name_ = "Virtual Camera";
 		// Do a draw if not active. If active the draw function will be called
 		// directly.
-		//if (screen_->activeCamera() != this) {
+		if (screen_->activeCamera() != this) {
 			_draw(fs);
-		//}
+		}
 	} else {
 		if (fid_ >= fs.frames.size()) return;
 		frame = &fs.frames[fid_];

applications/gui/src/src_window.cpp

@@ -125,6 +125,16 @@ SourceWindow::SourceWindow(ftl::gui::Screen *screen)
 		return true;
 	});
 
+	ftl::timer::add(ftl::timer::kTimerMain, [this](int64_t ts) {
+		auto *c = screen_->activeCamera();
+		// Only offer full framerate render on active camera.
+		if (c) {
+			UNIQUE_LOCK(frameset_.mtx,lk);
+			c->draw(frameset_);
+		}
+		return true;
+	});
+
 	_updateCameras(screen_->control()->getNet()->findAll<string>("list_streams"));
 
 	// Also check for a file on command line.