Add headless support on macOS

CMakeLists.txt

@@ -414,9 +414,13 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
 endif()
 
 if(ENABLE_HEADLESS)
-  message(STATUS "Enabling Headless! Disabling GUI, force enabling EGL!")
+  if(APPLE)
+    message(STATUS "Enabling Headless! Disabling GUI.")
+  else()
+    message(STATUS "Enabling Headless! Disabling GUI, force enabling EGL!")
+    set(USE_EGL 1)
+  endif()
   set(USE_X11 0)
-  set(USE_EGL 1)
   set(DISABLE_WX 1)
   set(ENABLE_QT2 0)
   add_definitions(-DUSE_HEADLESS)

Source/Core/Common/GL/GLInterface/AGL.mm

@@ -14,22 +14,6 @@
 // Call browser: Core.cpp:EmuThread() > main.cpp:Video_Initialize()
 bool cInterfaceAGL::Create(void* window_handle, bool core)
 {
-  cocoaWin = reinterpret_cast<NSView*>(window_handle);
-  NSSize size = [cocoaWin frame].size;
-
-  // Enable high-resolution display support.
-  [cocoaWin setWantsBestResolutionOpenGLSurface:YES];
-
-  NSWindow* window = [cocoaWin window];
-
-  float scale = [window backingScaleFactor];
-  size.width *= scale;
-  size.height *= scale;
-
-  // Control window size and picture scaling
-  s_backbuffer_width = size.width;
-  s_backbuffer_height = size.height;
-
   NSOpenGLPixelFormatAttribute attr[] = {NSOpenGLPFADoubleBuffer, NSOpenGLPFAOpenGLProfile,
                                          core ? NSOpenGLProfileVersion3_2Core :
                                                 NSOpenGLProfileVersionLegacy,
@@ -49,15 +33,34 @@
     return false;
   }
 
-  if (cocoaWin == nil)
+  if (window_handle)
   {
-    ERROR_LOG(VIDEO, "failed to create window");
-    return false;
-  }
+    cocoaWin = reinterpret_cast<NSView*>(window_handle);
+    NSSize size = [cocoaWin frame].size;
+
+    // Enable high-resolution display support.
+    [cocoaWin setWantsBestResolutionOpenGLSurface:YES];
 
-  [window makeFirstResponder:cocoaWin];
-  [cocoaCtx setView:cocoaWin];
-  [window makeKeyAndOrderFront:nil];
+    NSWindow* window = [cocoaWin window];
+
+    float scale = [window backingScaleFactor];
+    size.width *= scale;
+    size.height *= scale;
+
+    // Control window size and picture scaling
+    s_backbuffer_width = size.width;
+    s_backbuffer_height = size.height;
+
+    if (cocoaWin == nil)
+    {
+      ERROR_LOG(VIDEO, "failed to create window");
+      return false;
+    }
+
+    [window makeFirstResponder:cocoaWin];
+    [cocoaCtx setView:cocoaWin];
+    [window makeKeyAndOrderFront:nil];
+  }
 
   return true;
 }
@@ -84,18 +87,21 @@
 
 void cInterfaceAGL::Update()
 {
-  NSWindow* window = [cocoaWin window];
-  NSSize size = [cocoaWin frame].size;
+  if (cocoaWin)
+  {
+    NSWindow* window = [cocoaWin window];
+    NSSize size = [cocoaWin frame].size;
 
-  float scale = [window backingScaleFactor];
-  size.width *= scale;
-  size.height *= scale;
+    float scale = [window backingScaleFactor];
+    size.width *= scale;
+    size.height *= scale;
 
-  if (s_backbuffer_width == size.width && s_backbuffer_height == size.height)
-    return;
+    if (s_backbuffer_width == size.width && s_backbuffer_height == size.height)
+      return;
 
-  s_backbuffer_width = size.width;
-  s_backbuffer_height = size.height;
+    s_backbuffer_width = size.width;
+    s_backbuffer_height = size.height;
+  }
 
   [cocoaCtx update];
 }

Source/Core/DolphinNoGUI/MainNoGUI.cpp

@@ -370,7 +370,7 @@ class PlatformX11 : public Platform
 
 static Platform* GetPlatform()
 {
-#if defined(USE_EGL) && defined(USE_HEADLESS)
+#if defined(USE_HEADLESS)
   return new Platform();
 #elif HAVE_X11
   return new PlatformX11();

Source/Core/InputCommon/ControllerInterface/OSX/OSX.mm

@@ -173,26 +173,34 @@ static void DeviceMatchingCallback(void* inContext, IOReturn inResult, void* inS
 
   // Add a device if it's of a type we want
   if (IOHIDDeviceConformsTo(inIOHIDDeviceRef, kHIDPage_GenericDesktop, kHIDUsage_GD_Keyboard))
-    g_controller_interface.AddDevice(std::make_shared<Keyboard>(inIOHIDDeviceRef, name, g_window));
+  {
+    if (g_window)
+      g_controller_interface.AddDevice(
+          std::make_shared<Keyboard>(inIOHIDDeviceRef, name, g_window));
+  }
 #if 0
   else if (IOHIDDeviceConformsTo(inIOHIDDeviceRef, kHIDPage_GenericDesktop, kHIDUsage_GD_Mouse))
+  {
     g_controller_interface.AddDevice(new Mouse(inIOHIDDeviceRef, name));
+  }
 #endif
   else
+  {
     g_controller_interface.AddDevice(std::make_shared<Joystick>(inIOHIDDeviceRef, name));
+  }
 
   NOTICE_LOG(SERIALINTERFACE, "Added device: %s", name.c_str());
   g_controller_interface.InvokeHotplugCallbacks();
 }
 
 void Init(void* window)
 {
+  g_window = window;
+
   HIDManager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
   if (!HIDManager)
     ERROR_LOG(SERIALINTERFACE, "Failed to create HID Manager reference");
 
-  g_window = window;
-
   IOHIDManagerSetDeviceMatching(HIDManager, nullptr);
   if (IOHIDManagerOpen(HIDManager, kIOHIDOptionsTypeNone) != kIOReturnSuccess)
     ERROR_LOG(SERIALINTERFACE, "Failed to open HID Manager");

Source/Core/InputCommon/ControllerInterface/Quartz/Quartz.mm

@@ -12,6 +12,9 @@
 {
 void PopulateDevices(void* window)
 {
+  if (!window)
+    return;
+
   g_controller_interface.AddDevice(std::make_shared<KeyboardAndMouse>(window));
 }