Revert "apple: switch from MTKView to CAMetalLayer for vulkan (#16959)" (#17017)

This reverts commit 95d53183f5d3b8719a4c2d595b12de16da2e31af.

gfx/common/vksym.h

@@ -47,8 +47,12 @@
 #define VK_USE_PLATFORM_XLIB_KHR
 #endif
 
-#if defined(HAVE_COCOA) || defined(HAVE_COCOA_METAL) || defined(HAVE_COCOATOUCH)
+#if defined(HAVE_COCOA) || defined(HAVE_COCOA_METAL)
-#define VK_USE_PLATFORM_METAL_EXT
+#define VK_USE_PLATFORM_MACOS_MVK
+#endif
+
+#ifdef HAVE_COCOATOUCH
+#define VK_USE_PLATFORM_IOS_MVK
 #endif
 
 #include <vulkan/vulkan_symbol_wrapper.h>

gfx/common/vulkan_common.c

@@ -899,8 +899,10 @@ static VkInstance vulkan_context_create_instance_wrapper(void *opaque, const VkI
          required_extensions[required_extension_count++] = "VK_KHR_display";
          break;
       case VULKAN_WSI_MVK_MACOS:
+         required_extensions[required_extension_count++] = "VK_MVK_macos_surface";
+         break;
       case VULKAN_WSI_MVK_IOS:
-         required_extensions[required_extension_count++] = "VK_EXT_metal_surface";
+         required_extensions[required_extension_count++] = "VK_MVK_ios_surface";
          break;
       case VULKAN_WSI_NONE:
       default:
@@ -1675,18 +1677,36 @@ bool vulkan_surface_create(gfx_ctx_vulkan_data_t *vk,
             return false;
          break;
       case VULKAN_WSI_MVK_MACOS:
-      case VULKAN_WSI_MVK_IOS:
+#if defined(HAVE_COCOA) || defined(HAVE_COCOA_METAL)
-#if defined(HAVE_COCOA) || defined(HAVE_COCOA_METAL) || defined(HAVE_COCOATOUCH)
          {
-            VkMetalSurfaceCreateInfoEXT surf_info;
+            VkMacOSSurfaceCreateInfoMVK surf_info;
-            PFN_vkCreateMetalSurfaceEXT create;
+            PFN_vkCreateMacOSSurfaceMVK create;
-            if (!VULKAN_SYMBOL_WRAPPER_LOAD_INSTANCE_SYMBOL(vk->context.instance, "vkCreateMetalSurfaceEXT", create))
+            if (!VULKAN_SYMBOL_WRAPPER_LOAD_INSTANCE_SYMBOL(vk->context.instance, "vkCreateMacOSSurfaceMVK", create))
                return false;
 
-            surf_info.sType  = VK_STRUCTURE_TYPE_METAL_SURFACE_CREATE_INFO_EXT;
+            surf_info.sType = VK_STRUCTURE_TYPE_MACOS_SURFACE_CREATE_INFO_MVK;
             surf_info.pNext = NULL;
             surf_info.flags = 0;
-            surf_info.pLayer = surface;
+            surf_info.pView = surface;
+
+            if (create(vk->context.instance, &surf_info, NULL, &vk->vk_surface)
+                != VK_SUCCESS)
+               return false;
+         }
+#endif
+         break;
+      case VULKAN_WSI_MVK_IOS:
+#ifdef HAVE_COCOATOUCH
+         {
+            VkIOSSurfaceCreateInfoMVK surf_info;
+            PFN_vkCreateIOSSurfaceMVK create;
+            if (!VULKAN_SYMBOL_WRAPPER_LOAD_INSTANCE_SYMBOL(vk->context.instance, "vkCreateIOSSurfaceMVK", create))
+               return false;
+
+            surf_info.sType = VK_STRUCTURE_TYPE_IOS_SURFACE_CREATE_INFO_MVK;
+            surf_info.pNext = NULL;
+            surf_info.flags = 0;
+            surf_info.pView = surface;
 
             if (create(vk->context.instance, &surf_info, NULL, &vk->vk_surface)
                 != VK_SUCCESS)

gfx/drivers_context/cocoa_vk_ctx.m

@@ -249,7 +249,7 @@ static bool cocoa_vk_gfx_ctx_set_video_mode(void *data,
             &cocoa_ctx->vk,
             VULKAN_WSI_MVK_MACOS,
             NULL,
-            (BRIDGE void *)g_view.layer,
+            (BRIDGE void *)g_view,
             cocoa_ctx->width,
             cocoa_ctx->height,
             cocoa_ctx->swap_interval))
@@ -298,7 +298,7 @@ static bool cocoa_vk_gfx_ctx_set_video_mode(void *data,
    if (!vulkan_surface_create(&cocoa_ctx->vk,
                               VULKAN_WSI_MVK_IOS,
                               NULL,
-                              (BRIDGE void *)((MetalLayerView*)g_view).metalLayer,
+                              (BRIDGE void *)g_view,
                               cocoa_ctx->width,
                               cocoa_ctx->height,
                               cocoa_ctx->swap_interval))

ui/drivers/cocoa/apple_platform.h

@@ -70,14 +70,6 @@ extern id apple_platform;
 void rarch_start_draw_observer(void);
 void rarch_stop_draw_observer(void);
 
-#if defined(HAVE_COCOA_METAL)
-@interface MetalLayerView : UIView
-@property (nonatomic, readonly) CAMetalLayer *metalLayer;
-@end
-#endif
-
-#import <UIKit/UIKit.h>
-
 @interface RetroArch_iOS : UINavigationController<ApplePlatform, UIApplicationDelegate,
 UINavigationControllerDelegate> {
     UIView *_renderView;

ui/drivers/ui_cocoa.m

@@ -667,16 +667,6 @@ static ui_application_t ui_application_cocoa = {
    switch (vt)
    {
       case APPLE_VIEW_TYPE_VULKAN:
-         {
-            _renderView                 = [CocoaView get];
-            CAMetalLayer *metal_layer   = [[CAMetalLayer alloc] init];
-            metal_layer.device          = MTLCreateSystemDefaultDevice();
-            metal_layer.framebufferOnly = YES;
-            metal_layer.contentsScale   = [[NSScreen mainScreen] backingScaleFactor];
-            _renderView.layer           = metal_layer;
-            [_renderView setWantsLayer:YES];
-         }
-         break;
       case APPLE_VIEW_TYPE_METAL:
          {
             MetalView *v            = [MetalView new];

ui/drivers/ui_cocoatouch.m

@@ -500,42 +500,6 @@ enum
 
 @end
 
-#ifdef HAVE_COCOA_METAL
-@implementation MetalLayerView
-
-+ (Class)layerClass {
-    return [CAMetalLayer class];
-}
-
-- (instancetype)init {
-    self = [super init];
-    if (self) {
-        [self setupMetalLayer];
-    }
-    return self;
-}
-
-- (instancetype)initWithFrame:(CGRect)frame {
-    self = [super initWithFrame:frame];
-    if (self) {
-        [self setupMetalLayer];
-    }
-    return self;
-}
-
-- (CAMetalLayer *)metalLayer {
-    return (CAMetalLayer *)self.layer;
-}
-
-- (void)setupMetalLayer {
-    self.metalLayer.device = MTLCreateSystemDefaultDevice();
-    self.metalLayer.contentsScale = [UIScreen mainScreen].scale;
-    self.metalLayer.opaque = YES;
-}
-
-@end
-#endif
-
 #if TARGET_OS_IOS
 @interface RetroArch_iOS () <MXMetricManagerSubscriber, UIPointerInteractionDelegate>
 @end
@@ -566,8 +530,6 @@ enum
    {
 #ifdef HAVE_COCOA_METAL
        case APPLE_VIEW_TYPE_VULKAN:
-         _renderView = [MetalLayerView new];
-         break;
        case APPLE_VIEW_TYPE_METAL:
          {
             MetalView *v = [MetalView new];