iOS MoltenVK code style cleanup.

src/video/uikit/SDL_uikitmetalview.m

@@ -86,7 +86,7 @@ UIKit_Mtl_AddMetalView(SDL_Window* window)
     SDL_WindowData *data = (__bridge SDL_WindowData *)window->driverdata;
     SDL_uikitview *view = (SDL_uikitview*)data.uiwindow.rootViewController.view;
     CGFloat scale = 1.0;
-    
+
     if (window->flags & SDL_WINDOW_ALLOW_HIGHDPI) {
         /* Set the scale to the natural scale factor of the screen - the
          * backing dimensions of the Metal view will match the pixel

src/video/uikit/SDL_uikitvulkan.m

@@ -52,14 +52,16 @@ int UIKit_Vulkan_LoadLibrary(_THIS, const char *path)
     SDL_bool hasIOSSurfaceExtension = SDL_FALSE;
     PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = NULL;
 
-    if(_this->vulkan_config.loader_handle)
+    if (_this->vulkan_config.loader_handle) {
         return SDL_SetError("MoltenVK/Vulkan already loaded");
+    }
 
     /* Load the Vulkan loader library */
-    if(!path)
+    if (!path) {
         path = SDL_getenv("SDL_VULKAN_LIBRARY");
-    if(!path)
-    {
+    }
+
+    if (!path) {
         /* MoltenVK framework, currently, v0.17.0, has a static library and is
          * the recommended way to use the package. There is likely no object to
          * load. */
@@ -67,22 +69,19 @@ int UIKit_Vulkan_LoadLibrary(_THIS, const char *path)
         (PFN_vkGetInstanceProcAddr)dlsym(DEFAULT_HANDLE,
                                          "vkGetInstanceProcAddr");
     }
-    
-    if(vkGetInstanceProcAddr)
-    {
+
+    if (vkGetInstanceProcAddr) {
         _this->vulkan_config.loader_handle = DEFAULT_HANDLE;
-    }
-    else
-    {
-        if (!path)
-        {
+    } else {
+        if (!path) {
             /* Look for the .dylib packaged with the application instead. */
             path = DEFAULT_MOLTENVK;
         }
-        
+
         _this->vulkan_config.loader_handle = SDL_LoadObject(path);
-        if(!_this->vulkan_config.loader_handle)
+        if (!_this->vulkan_config.loader_handle) {
             return -1;
+        }
         SDL_strlcpy(_this->vulkan_config.loader_path, path,
                     SDL_arraysize(_this->vulkan_config.loader_path));
         vkGetInstanceProcAddr =
@@ -90,8 +89,8 @@ int UIKit_Vulkan_LoadLibrary(_THIS, const char *path)
                                     _this->vulkan_config.loader_handle,
                                     "vkGetInstanceProcAddr");
     }
-    if(!vkGetInstanceProcAddr)
-    {
+
+    if (!vkGetInstanceProcAddr) {
         SDL_SetError("Failed to find %s in either executable or %s: %s",
                      "vkGetInstanceProcAddr",
                      DEFAULT_MOLTENVK,
@@ -103,33 +102,36 @@ int UIKit_Vulkan_LoadLibrary(_THIS, const char *path)
     _this->vulkan_config.vkEnumerateInstanceExtensionProperties =
         (void *)((PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr)(
             VK_NULL_HANDLE, "vkEnumerateInstanceExtensionProperties");
-    if(!_this->vulkan_config.vkEnumerateInstanceExtensionProperties)
-    {
+
+    if (!_this->vulkan_config.vkEnumerateInstanceExtensionProperties) {
         SDL_SetError("No vkEnumerateInstanceExtensionProperties found.");
         goto fail;
     }
+
     extensions = SDL_Vulkan_CreateInstanceExtensionsList(
         (PFN_vkEnumerateInstanceExtensionProperties)
             _this->vulkan_config.vkEnumerateInstanceExtensionProperties,
         &extensionCount);
-    if(!extensions)
+
+    if (!extensions) {
         goto fail;
-    for(Uint32 i = 0; i < extensionCount; i++)
-    {
-        if(SDL_strcmp(VK_KHR_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0)
+    }
+
+    for (Uint32 i = 0; i < extensionCount; i++) {
+        if (SDL_strcmp(VK_KHR_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0) {
             hasSurfaceExtension = SDL_TRUE;
-        else if(SDL_strcmp(VK_MVK_IOS_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0)
+        } else if (SDL_strcmp(VK_MVK_IOS_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0) {
             hasIOSSurfaceExtension = SDL_TRUE;
+        }
     }
+
     SDL_free(extensions);
-    if(!hasSurfaceExtension)
-    {
+
+    if (!hasSurfaceExtension) {
         SDL_SetError("Installed MoltenVK/Vulkan doesn't implement the "
                      VK_KHR_SURFACE_EXTENSION_NAME " extension");
         goto fail;
-    }
-    else if(!hasIOSSurfaceExtension)
-    {
+    } else if (!hasIOSSurfaceExtension) {
         SDL_SetError("Installed MoltenVK/Vulkan doesn't implement the "
                      VK_MVK_IOS_SURFACE_EXTENSION_NAME "extension");
         goto fail;
@@ -144,10 +146,10 @@ fail:
 
 void UIKit_Vulkan_UnloadLibrary(_THIS)
 {
-    if(_this->vulkan_config.loader_handle)
-    {
-        if (_this->vulkan_config.loader_handle != DEFAULT_HANDLE)
+    if (_this->vulkan_config.loader_handle) {
+        if (_this->vulkan_config.loader_handle != DEFAULT_HANDLE) {
             SDL_UnloadObject(_this->vulkan_config.loader_handle);
+        }
         _this->vulkan_config.loader_handle = NULL;
     }
 }
@@ -160,11 +162,11 @@ SDL_bool UIKit_Vulkan_GetInstanceExtensions(_THIS,
     static const char *const extensionsForUIKit[] = {
         VK_KHR_SURFACE_EXTENSION_NAME, VK_MVK_IOS_SURFACE_EXTENSION_NAME
     };
-    if(!_this->vulkan_config.loader_handle)
-    {
+    if (!_this->vulkan_config.loader_handle) {
         SDL_SetError("Vulkan is not loaded");
         return SDL_FALSE;
     }
+
     return SDL_Vulkan_GetInstanceExtensions_Helper(
             count, names, SDL_arraysize(extensionsForUIKit),
             extensionsForUIKit);
@@ -184,30 +186,29 @@ SDL_bool UIKit_Vulkan_CreateSurface(_THIS,
     VkIOSSurfaceCreateInfoMVK createInfo = {};
     VkResult result;
 
-    if(!_this->vulkan_config.loader_handle)
-    {
+    if (!_this->vulkan_config.loader_handle) {
         SDL_SetError("Vulkan is not loaded");
         return SDL_FALSE;
     }
 
-    if(!vkCreateIOSSurfaceMVK)
-    {
+    if (!vkCreateIOSSurfaceMVK) {
         SDL_SetError(VK_MVK_IOS_SURFACE_EXTENSION_NAME
                      " extension is not enabled in the Vulkan instance.");
         return SDL_FALSE;
     }
+
     createInfo.sType = VK_STRUCTURE_TYPE_IOS_SURFACE_CREATE_INFO_MVK;
     createInfo.pNext = NULL;
     createInfo.flags = 0;
     createInfo.pView = (__bridge void *)UIKit_Mtl_AddMetalView(window);
     result = vkCreateIOSSurfaceMVK(instance, &createInfo,
                                        NULL, surface);
-    if(result != VK_SUCCESS)
-    {
+    if (result != VK_SUCCESS) {
         SDL_SetError("vkCreateIOSSurfaceMVK failed: %s",
                      SDL_Vulkan_GetResultString(result));
         return SDL_FALSE;
     }
+
     return SDL_TRUE;
 }