Added VK_VALIDATION_FEATURE_ENABLE_BEST_PRACTICES_EXT support.

README.md

@@ -97,7 +97,7 @@ The following commands are available when using the Vulkan renderer:
 
 | Command                 | Action                                                  |
 |-------------------------|:--------------------------------------------------------|
-| `vk_validation`         | Toggle validation layers:<br>`0` - disabled (default in Release)<br> `1` - only errors and warnings<br>`2` - full validation (default in Debug) |
+| `vk_validation`         | Toggle validation layers:<br>`0` - disabled (default in Release)<br> `1` - only errors and warnings<br>`2` - full validation (default in Debug)<br>`3` - enables `VK_VALIDATION_FEATURE_ENABLE_BEST_PRACTICES_EXT` |
 | `vk_strings`            | Print some basic Vulkan/GPU information.                                    |
 | `vk_mem`                | Print dynamic vertex/index/uniform/triangle fan buffer memory usage statistics.          |
 | `vk_device`             | Specify index of the preferred Vulkan device on systems with multiple GPUs:<br>`-1` - prefer first DISCRETE_GPU (default)<br>`0..n` - use device #n (full list of devices is returned by `vk_strings` command) |

ref_vk/vk_common.c

@@ -1574,6 +1574,16 @@ qboolean QVk_Init()
 	}
 	ri.Con_Printf(PRINT_ALL, "\n");
 
+	VkValidationFeatureEnableEXT validationFeaturesEnable[] = { VK_VALIDATION_FEATURE_ENABLE_BEST_PRACTICES_EXT };
+	VkValidationFeaturesEXT validationFeatures = {
+		.sType = VK_STRUCTURE_TYPE_VALIDATION_FEATURES_EXT,
+		.pNext = NULL,
+		.enabledValidationFeatureCount = sizeof(validationFeaturesEnable) / sizeof(validationFeaturesEnable[0]),
+		.pEnabledValidationFeatures = validationFeaturesEnable,
+		.disabledValidationFeatureCount = 0,
+		.pDisabledValidationFeatures = NULL
+	};
+
 	VkInstanceCreateInfo createInfo = {
 		.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
 		.pNext = NULL,
@@ -1584,6 +1594,9 @@ qboolean QVk_Init()
 		.ppEnabledExtensionNames = (const char* const*)wantedExtensions
 	};
 
+	if (vk_validation->value > 2)
+		createInfo.pNext = &validationFeatures;
+
 #if VK_HEADER_VERSION > 101
 	const char *validationLayers[] = { "VK_LAYER_KHRONOS_validation" };
 #else