gpu: VK_KHR_get_physical_device_properties2 can be optional

src/gpu/vulkan/SDL_gpu_vulkan.c

@@ -1116,6 +1116,7 @@ struct VulkanRenderer
     VulkanExtensions supports;
     bool supportsDebugUtils;
     bool supportsColorspace;
+    bool supportsPhysicalDeviceProperties2;
     bool supportsFillModeNonSolid;
     bool supportsMultiDrawIndirect;
 
@@ -11036,7 +11037,8 @@ static Uint8 VULKAN_INTERNAL_CheckInstanceExtensions(
     const char **requiredExtensions,
     Uint32 requiredExtensionsLength,
     bool *supportsDebugUtils,
-    bool *supportsColorspace)
+    bool *supportsColorspace,
+    bool *supportsPhysicalDeviceProperties2)
 {
     Uint32 extensionCount, i;
     VkExtensionProperties *availableExtensions;
@@ -11075,6 +11077,12 @@ static Uint8 VULKAN_INTERNAL_CheckInstanceExtensions(
         availableExtensions,
         extensionCount);
 
+    // Only needed for KHR_driver_properties!
+    *supportsPhysicalDeviceProperties2 = SupportsInstanceExtension(
+        VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME,
+        availableExtensions,
+        extensionCount);
+
     SDL_free(availableExtensions);
     return allExtensionsSupported;
 }
@@ -11185,10 +11193,6 @@ static Uint8 VULKAN_INTERNAL_CreateInstance(VulkanRenderer *renderer)
         instanceExtensionCount + 4);
     SDL_memcpy((void *)instanceExtensionNames, originalInstanceExtensionNames, instanceExtensionCount * sizeof(const char *));
 
-    // Core since 1.1
-    instanceExtensionNames[instanceExtensionCount++] =
-        VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME;
-
 #ifdef SDL_PLATFORM_APPLE
     instanceExtensionNames[instanceExtensionCount++] =
         VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME;
@@ -11199,7 +11203,8 @@ static Uint8 VULKAN_INTERNAL_CreateInstance(VulkanRenderer *renderer)
             instanceExtensionNames,
             instanceExtensionCount,
             &renderer->supportsDebugUtils,
-            &renderer->supportsColorspace)) {
+            &renderer->supportsColorspace,
+            &renderer->supportsPhysicalDeviceProperties2)) {
         SDL_stack_free((char *)instanceExtensionNames);
         SET_STRING_ERROR_AND_RETURN("Required Vulkan instance extensions not supported", false);
     }
@@ -11221,6 +11226,12 @@ static Uint8 VULKAN_INTERNAL_CreateInstance(VulkanRenderer *renderer)
             VK_EXT_SWAPCHAIN_COLOR_SPACE_EXTENSION_NAME;
     }
 
+    if (renderer->supportsPhysicalDeviceProperties2) {
+        // Append KHR_physical_device_properties2 extension
+        instanceExtensionNames[instanceExtensionCount++] =
+            VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME;
+    }
+
     createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
     createInfo.pNext = NULL;
     createInfo.flags = createFlags;