add mutex to App::update, move custom app-glue to git submodule

.gitmodules

@@ -49,3 +49,6 @@
 [submodule "libs/hash-library"]
 	path = libs/hash-library
 	url = https://github.com/stbrumme/hash-library
+[submodule "libs/native_app_glue"]
+	path = libs/native_app_glue
+	url = https://bitbucket.org/omigamedev/native_app_glue.git

android/CMakeLists.txt

@@ -7,7 +7,7 @@ cmake_minimum_required(VERSION 3.4.1)
 # build native_app_glue as a static lib
 add_library(
 	app-glue STATIC
-	${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c
+	../libs/native_app_glue/android_native_app_glue.c
 )
 
 # Specifies a library name, specifies whether the library is STATIC or
@@ -94,7 +94,6 @@ add_library(
 )
 
 target_include_directories(native-lib PRIVATE
-	${ANDROID_NDK}/sources/android/native_app_glue
 	src/main/cpp
 	../src
 	../libs/glm
@@ -106,7 +105,8 @@ target_include_directories(native-lib PRIVATE
 	../libs/poly2tri/poly2tri
 	../libs/base64
 	../libs/sqlite3
-    ../libs/nanort
+	../libs/nanort
+	../libs/native_app_glue
 )
 
 # add lib dependencies

src/app.cpp

@@ -443,7 +443,11 @@ void App::async_end()
 
 void App::update(float dt)
 {
+    static std::mutex mutex;
     static float rec_timer = 0.f;
+
+    // avoid multiple threads to update the scene
+    std::lock_guard<std::mutex> lock(mutex);
     
     static std::mutex m;
     std::lock_guard<std::mutex> _lock(m);
@@ -511,16 +515,19 @@ void App::update(float dt)
         }
         return false;
     };
-    /*
-    uirtt.bindFramebuffer();
-    uirtt.clear();
-    glEnable(GL_SCISSOR_TEST);
-    for (int i = 1; i < layout[main_id]->m_children.size(); i++)
-        layout[main_id]->m_children[i]->watch(observer);
-    //msgbox->watch(observer);
-    glDisable(GL_SCISSOR_TEST);
-    uirtt.unbindFramebuffer();
-    */
+    
+    if (vr_active)
+    {
+        uirtt.bindFramebuffer();
+        uirtt.clear();
+        glEnable(GL_SCISSOR_TEST);
+        for (int i = 1; i < layout[main_id]->m_children.size(); i++)
+            layout[main_id]->m_children[i]->watch(observer);
+        //msgbox->watch(observer);
+        glDisable(GL_SCISSOR_TEST);
+        uirtt.unbindFramebuffer();
+    }
+    
 #if __IOS__
     [ios_view->glview bindDrawable];
 #else

src/app_cloud.cpp

@@ -53,7 +53,7 @@ void App::cloud_upload()
 
         auto m = layout[main_id]->add_child<NodeMessageBox>();
         m->m_title->set_text("Publish document");
-        m->m_message->set_text("Would you like to upload this document to the public domain?");
+        m->m_message->set_text("Would you like to upload to the public domain?");
         m->btn_ok->m_text->set_text("Yes");
         m->btn_cancel->m_text->set_text("No");
         m->btn_ok->on_click = [this, m, upload_thread](Node*) {