fix egl extensions loader

src/main/cpp/egl_context.cpp

@@ -33,7 +33,7 @@ bool egl::Context::create(ANativeWindow* window)
         Logger::Log("eglInitialize failed");
         return false;
     }
-    version = gladLoaderLoadEGL(EGL_DEFAULT_DISPLAY);
+    version = gladLoadEGL(m_display, eglGetProcAddress);
     std::vector<EGLint> config_attribs =
     {
         EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT,
@@ -86,6 +86,7 @@ bool egl::Context::create(ANativeWindow* window)
     {
         glDebugMessageCallback(debug_handler, nullptr);
         glEnable(GL_DEBUG_OUTPUT);
+        glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
     }
     return true;
 }

src/main/cpp/mosis-service.cpp

@@ -132,10 +132,14 @@ class Kernel
         }
         m_render_target->bind();
         m_listener->onServiceInitialized(true);
+
         while (true)
         {
+            glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
+            glClear(GL_COLOR_BUFFER_BIT);
+            glFinish();
             m_listener->onFrameAvailable(m_render_target->hardware_buffer());
-            m_egl_context->swap();
+            std::this_thread::sleep_for(std::chrono::milliseconds(100));
         }
     }
 public: