Testing textures and events

src/dawnglfw/host/DawnGLFWHost.cpp

@@ -12,12 +12,8 @@
 
 using namespace Dawn;
 
-GLFWwindow *window;
-
-// GLFW Callbacks
-void glfwOnError(int error, const char* description) {
-  fputs(description, stderr);
-}
+// Static declaration of the host, needed due to GLFW events being C-like
+DawnHost *DAWN_HOST = nullptr;
 
 // Host
 DawnHost::DawnHost() {
@@ -26,6 +22,10 @@ DawnHost::DawnHost() {
 }
 
 int32_t DawnHost::init(DawnGame &game) {
+  // Update values
+  this->game = &game;
+  DAWN_HOST = this;
+
   // Init GLFW
   if(!glfwInit()) return DAWN_GLFW_INIT_RESULT_INIT_FAILED;
 
@@ -35,18 +35,18 @@ int32_t DawnHost::init(DawnGame &game) {
   glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, false);
   
   // Create Window
-  window = glfwCreateWindow(
+  this->data->window = glfwCreateWindow(
     DAWN_GLFW_WINDOW_WIDTH_DEFAULT,
     DAWN_GLFW_WINDOW_HEIGHT_DEFAULT,
     "Dawn", NULL, NULL
   );
-  if(window == nullptr) {
+  if(this->data->window == nullptr) {
     glfwTerminate();
     return DAWN_GLFW_INIT_RESULT_WINDOW_CREATE_FAILED;
   }
 
   // Load GLAD
-  glfwMakeContextCurrent(window);
+  glfwMakeContextCurrent(this->data->window);
   glfwSwapInterval(0);
   gladLoadGLLoader((GLADloadproc)glfwGetProcAddress);
 
@@ -59,6 +59,9 @@ int32_t DawnHost::init(DawnGame &game) {
     DAWN_GLFW_WINDOW_HEIGHT_DEFAULT
   );
 
+  // Set up event listeners
+  glfwSetWindowSizeCallback(this->data->window, &glfwOnResize);
+
   return DAWN_HOST_INIT_RESULT_SUCCESS;
 }
 
@@ -69,7 +72,7 @@ int32_t DawnHost::start(DawnGame &game) {
 
   // Main Render Loop 
   time = 0.0f;
-  while(!glfwWindowShouldClose(window)) {
+  while(!glfwWindowShouldClose(this->data->window)) {
     // Determine the delta.
     newTime = glfwGetTime();
     fDelta = (float_t)(newTime - time);
@@ -86,7 +89,7 @@ int32_t DawnHost::start(DawnGame &game) {
     }
     
     // Tick the engine.
-    glfwSwapBuffers(window);
+    glfwSwapBuffers(this->data->window);
     
     // Update events
     glfwPollEvents();
@@ -116,5 +119,24 @@ void DawnHost::unload(DawnGame &game) {
 }
 
 DawnHost::~DawnHost() {
+  DAWN_HOST = nullptr;
+}
 
+
+// GLFW Callbacks
+void glfwOnError(int error, const char* description) {
+  fputs(description, stderr);
+}
+
+void glfwOnResize(
+  GLFWwindow *window,
+  int32_t width,
+  int32_t height
+) {
+  if(DAWN_HOST == nullptr) return;
+  // TODO: I may throttle this, it calls for every frame the window's resized.
+  DAWN_HOST->game->renderManager.backBuffer.setSize(
+    (float_t)width,
+    (float_t)height
+  );
 }

src/dawnglfw/host/DawnGLFWHost.hpp

@@ -22,4 +22,8 @@ namespace Dawn {
     public:
       GLFWwindow *window;
   };
-}
+}
+
+// GLFW Callbacks
+void glfwOnError(int error, const char* description);
+void glfwOnResize(GLFWwindow *window, int32_t width, int32_t height);