Working on RenderTarget example

src/dawnglfw/host/DawnGLFWHost.cpp

@@ -8,6 +8,7 @@
 #include "DawnGLFWHost.hpp"
 #include "game/DawnGame.hpp"
 #include "dawnopengl.hpp"
+#include "display/BackBufferRenderTarget.hpp"
 
 using namespace Dawn;
 
@@ -53,6 +54,11 @@ int32_t DawnHost::init(std::weak_ptr<DawnGame> game) {
   if(auto g = game.lock()) {
     auto result = g->init();
     if(result != DAWN_GAME_INIT_RESULT_SUCCESS) return result;
+
+    g->renderManager.renderTarget->setSize(
+      DAWN_GLFW_WINDOW_WIDTH_DEFAULT,
+      DAWN_GLFW_WINDOW_HEIGHT_DEFAULT
+    );
   } else {
     return DAWN_GLFW_INIT_RESULT_GAME_LOCK_FAILED;
   }
@@ -107,6 +113,8 @@ int32_t DawnHost::update(std::weak_ptr<DawnGame> game, float_t delta) {
         return ret;
     }
   }
+  
+  return DAWN_GLFW_UPDATE_RESULT_GAME_LOCK_FAILED;
 }
 
 void DawnHost::unload(std::weak_ptr<DawnGame> game) {

src/dawnglfw/host/DawnGLFWHost.hpp

@@ -18,6 +18,8 @@
 
 #define DAWN_GLFW_START_RESULT_UPDATE_FAILED -1
 
+#define DAWN_GLFW_UPDATE_RESULT_GAME_LOCK_FAILED -1
+
 namespace Dawn {
   class DawnHostData {
     public: