switch to vkCreateMetalSurfaceEXT and create metal layer in swapchain (#3627)

* switch to vkCreateMetalSurfaceEXT and create metal layer in swapchain

* fix window content size on macos

---------

Co-authored-by: Yong He <yonghe@outlook.com>

2 files changed, 5 insertions, 23 deletions

diff --git a/tools/platform/apple/cocoa-window.mm b/tools/platform/apple/cocoa-window.mm
index 450087dd2..b985cb4f3 100644
--- a/tools/platform/apple/cocoa-window.mm
+++ b/tools/platform/apple/cocoa-window.mm
@@ -50,8 +50,6 @@ class CocoaPlatformWindow : public Window
 public:
     NSWindow* window;
     WindowDelegate* delegate;
-    ContentView* view;
-    CAMetalLayer* layer;
     bool shouldClose = false;
 
     CocoaPlatformWindow(const WindowDesc& desc);
@@ -516,26 +514,14 @@ CocoaPlatformWindow::CocoaPlatformWindow(const WindowDesc& desc)
     else if (desc.style == WindowStyle::FixedSize)
         [window setStyleMask:NSWindowStyleMaskTitled | NSWindowStyleMaskClosable];
 
-    // Allocate view
-    rect = [window backingAlignedRect:rect options:NSAlignAllEdgesOutward];
-    view = [[ContentView alloc] initWithPlatformWindow:this];
-    [view setHidden:NO];
-    [view setNeedsDisplay:YES];
-    [view setWantsLayer:YES];
-
     delegate = [[WindowDelegate alloc] initWithPlatformWindow:this];
     [window setDelegate:delegate];
-    [window setContentView:view];
 
     NSString* title = [NSString stringWithUTF8String:desc.title];
     [window setTitle:title];
 
     [window center];
     [window makeKeyAndOrderFront:nil];
-
-    // Setup layer
-    layer = [[CAMetalLayer alloc] init];
-    [view setLayer:layer];
 }
 
 CocoaPlatformWindow::~CocoaPlatformWindow()
@@ -564,13 +550,9 @@ void CocoaPlatformWindow::close()
 {
     [window release];
     [delegate release];
-    [view release];
-    [layer release];
 
     window = nil;
     delegate = nil;
-    view = nil;
-    layer = nil;
 }
 
 bool CocoaPlatformWindow::getFocused()
@@ -585,7 +567,7 @@ bool CocoaPlatformWindow::getVisible()
 
 WindowHandle CocoaPlatformWindow::getNativeHandle()
 {
-    return WindowHandle::fromNSView(view);
+    return WindowHandle::fromNSWindow(window);
 }
 
 void CocoaPlatformWindow::setText(Slang::String text)
diff --git a/tools/platform/window.h b/tools/platform/window.h
index 7f78b8af9..efbe139a7 100644
--- a/tools/platform/window.h
+++ b/tools/platform/window.h
@@ -97,7 +97,7 @@ struct WindowHandle
     {
         Unknown,
         Win32Handle,
-        NSViewHandle,
+        NSWindowHandle,
         XLibHandle,
     };
     Type type;
@@ -109,11 +109,11 @@ struct WindowHandle
         handle.handleValues[0] = (intptr_t)(hwnd);
         return handle;
     }
-    static WindowHandle fromNSView(void* nsview)
+    static WindowHandle fromNSWindow(void* nswindow)
     {
         WindowHandle handle = {};
-        handle.type = WindowHandle::Type::NSViewHandle;
-        handle.handleValues[0] = (intptr_t)(nsview);
+        handle.type = WindowHandle::Type::NSWindowHandle;
+        handle.handleValues[0] = (intptr_t)(nswindow);
         return handle;
     }
     static WindowHandle fromXWindow(void* xdisplay, uint32_t xwindow)