vulkan-1/tests: Consider vkGetPhysicalDevicePresentRectanglesKHR absence in test_null_hwnd().

dlls/vulkan-1/tests/vulkan.c

@@ -441,11 +441,13 @@ static const char *test_null_hwnd_extensions[] =
 {
     "VK_KHR_surface",
     "VK_KHR_win32_surface",
+    "VK_KHR_device_group_creation",
 };
 
 static void test_null_hwnd(VkInstance vk_instance, VkPhysicalDevice vk_physical_device)
 {
     PFN_vkGetPhysicalDeviceSurfacePresentModesKHR pvkGetPhysicalDeviceSurfacePresentModesKHR;
+    PFN_vkGetPhysicalDevicePresentRectanglesKHR pvkGetPhysicalDevicePresentRectanglesKHR;
     VkDeviceGroupPresentModeFlagsKHR present_mode_flags;
     VkWin32SurfaceCreateInfoKHR surface_create_info;
     VkSurfaceCapabilitiesKHR surf_caps;
@@ -461,6 +463,9 @@ static void test_null_hwnd(VkInstance vk_instance, VkPhysicalDevice vk_physical_
 
     pvkGetPhysicalDeviceSurfacePresentModesKHR = (void *)vkGetInstanceProcAddr(vk_instance,
             "vkGetPhysicalDeviceSurfacePresentModesKHR");
+    pvkGetPhysicalDevicePresentRectanglesKHR = (void *)vkGetInstanceProcAddr(vk_instance,
+            "vkGetPhysicalDevicePresentRectanglesKHR");
+
     surface_create_info.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
     surface_create_info.pNext = NULL;
     surface_create_info.flags = 0;
@@ -499,12 +504,14 @@ static void test_null_hwnd(VkInstance vk_instance, VkPhysicalDevice vk_physical_
     ok(vr == VK_SUCCESS, "Got unexpected vr %d.\n", vr);
     heap_free(modes);
 
+    if (pvkGetPhysicalDevicePresentRectanglesKHR)
+    {
         count = 0;
-    vr = vkGetPhysicalDevicePresentRectanglesKHR(vk_physical_device, surface, &count, NULL);
+        vr = pvkGetPhysicalDevicePresentRectanglesKHR(vk_physical_device, surface, &count, NULL);
         ok(vr == VK_SUCCESS, "Got unexpected vr %d.\n", vr);
         ok(count == 1, "Got unexpected count %u.\n", count);
         memset(&rect, 0xcc, sizeof(rect));
-    vr = vkGetPhysicalDevicePresentRectanglesKHR(vk_physical_device, surface, &count, &rect);
+        vr = pvkGetPhysicalDevicePresentRectanglesKHR(vk_physical_device, surface, &count, &rect);
         if (vr == VK_SUCCESS) /* Fails on AMD, succeeds on Nvidia. */
         {
             ok(count == 1, "Got unexpected count %u.\n", count);
@@ -519,6 +526,14 @@ static void test_null_hwnd(VkInstance vk_instance, VkPhysicalDevice vk_physical_
             vkDestroySurfaceKHR(vk_instance, surface, NULL);
             return;
         }
+    }
+    else
+    {
+        /* The function should be available in practice with VK_KHR_device_group_creation, but spec lists
+         * it as a part of VK_KHR_device_group device extension which we don't check, so consider the
+         * absence of the function. */
+        win_skip("pvkGetPhysicalDevicePresentRectanglesKHR is no available.\n");
+    }
 
     if (0)
     {