[rcore] [GLFW] [SDL2] Updates `CORE.Window.eventWaiting` and `FLAG_WINDOW_ALWAYS_RUN` handling (#4642)

* Add implementation for CORE.Window.eventWaiting on PLATFORM_DESKTOP_SDL

* Optimize GetFrameTime() reset

* Optimize FLAG_WINDOW_ALWAYS_RUN and GetFrameTime() reset for PLATFORM_DESKTOP_GLFW

src/platforms/rcore_desktop_glfw.c

@@ -1248,12 +1248,13 @@ void PollInputEvents(void)
 
     CORE.Window.resizedLastFrame = false;
 
-    if (CORE.Window.eventWaiting) glfwWaitEvents();     // Wait for in input events before continue (drawing is paused)
+    if ((CORE.Window.eventWaiting) || (IsWindowState(FLAG_WINDOW_MINIMIZED) && !IsWindowState(FLAG_WINDOW_ALWAYS_RUN)))
+    {
+        glfwWaitEvents();     // Wait for in input events before continue (drawing is paused)
+        CORE.Time.previous = GetTime();
+    }
     else glfwPollEvents();      // Poll input events: keyboard/mouse/window events (callbacks) -> Update keys state
 
-    // While window minimized, stop loop execution
-    while (IsWindowState(FLAG_WINDOW_MINIMIZED) && !IsWindowState(FLAG_WINDOW_ALWAYS_RUN)) glfwWaitEvents();
-
     CORE.Window.shouldClose = glfwWindowShouldClose(platform.handle);
 
     // Reset close status for next frame
@@ -1739,12 +1740,7 @@ static void WindowContentScaleCallback(GLFWwindow *window, float scalex, float s
 static void WindowIconifyCallback(GLFWwindow *window, int iconified)
 {
     if (iconified) CORE.Window.flags |= FLAG_WINDOW_MINIMIZED;  // The window was iconified
-    else
-    {
-        CORE.Window.flags &= ~FLAG_WINDOW_MINIMIZED;           // The window was restored
-
-        if ((CORE.Window.flags & FLAG_WINDOW_ALWAYS_RUN) == 0) CORE.Time.previous = GetTime();
-    }
+    else CORE.Window.flags &= ~FLAG_WINDOW_MINIMIZED;           // The window was restored
 }
 
 // GLFW3 WindowMaximize Callback, runs when window is maximized/restored

src/platforms/rcore_desktop_sdl.c

@@ -1378,7 +1378,11 @@ void PollInputEvents(void)
 
     CORE.Window.resizedLastFrame = false;
 
-    if (((CORE.Window.flags & FLAG_WINDOW_MINIMIZED) > 0) && ((CORE.Window.flags & FLAG_WINDOW_ALWAYS_RUN) == 0)) SDL_WaitEvent(NULL);
+    if ((CORE.Window.eventWaiting) || (((CORE.Window.flags & FLAG_WINDOW_MINIMIZED) > 0) && ((CORE.Window.flags & FLAG_WINDOW_ALWAYS_RUN) == 0)))
+    {
+        SDL_WaitEvent(NULL);
+        CORE.Time.previous = GetTime();
+    }
 
     SDL_Event event = { 0 };
     while (SDL_PollEvent(&event) != 0)
@@ -1499,8 +1503,6 @@ void PollInputEvents(void)
                             if ((CORE.Window.flags & SDL_WINDOW_MAXIMIZED) > 0) CORE.Window.flags &= ~SDL_WINDOW_MAXIMIZED;
                         }
                         #endif
-
-                        if ((CORE.Window.flags & FLAG_WINDOW_ALWAYS_RUN) == 0) CORE.Time.previous = GetTime();
                     } break;
 
                     case SDL_WINDOWEVENT_HIDDEN: