diff --git a/vulkan/api/vulkan.api b/vulkan/api/vulkan.api
index 754c441..c8752c4 100644
--- a/vulkan/api/vulkan.api
+++ b/vulkan/api/vulkan.api
@@ -28,7 +28,7 @@
 // API version (major.minor.patch)
 define VERSION_MAJOR 1
 define VERSION_MINOR 0
-define VERSION_PATCH 38
+define VERSION_PATCH 39
 
 // API limits
 define VK_MAX_PHYSICAL_DEVICE_NAME_SIZE 256
@@ -165,14 +165,57 @@
 @extension("VK_NV_win32_keyed_mutex") define VK_NV_WIN32_KEYED_MUTEX_SPEC_VERSION 1
 @extension("VK_NV_win32_keyed_mutex") define VK_NV_WIN32_KEYED_MUTEX_EXTENSION_NAME "VK_NV_win32_keyed_mutex"
 
+// 60
+@extension("VK_KHR_get_physical_device_properties2") define VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_SPEC_VERSION 1
+@extension("VK_KHR_get_physical_device_properties2") define VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME "VK_KHR_get_physical_device_properties2"
+
 // 62
 @extension("VK_EXT_validation_flags") define VK_EXT_VALIDATION_FLAGS_SPEC_VERSION 1
 @extension("VK_EXT_validation_flags") define VK_EXT_VALIDATION_FLAGS_EXTENSION_NAME "VK_EXT_validation_flags"
 
+// 63
+@extension("VK_NN_vi_surface") define VK_NN_VI_SURFACE_SPEC_VERSION 1
+@extension("VK_NN_vi_surface") define VK_NN_VI_SURFACE_EXTENSION_NAME "VK_NN_vi_surface"
+
+// 64
+@extension("VK_KHR_shader_draw_parameters") define VK_KHR_SHADER_DRAW_PARAMETERS_SPEC_VERSION 1
+@extension("VK_KHR_shader_draw_parameters") define VK_KHR_SHADER_DRAW_PARAMETERS_EXTENSION_NAME "VK_KHR_shader_draw_parameters"
+
+// 65
+@extension("VK_EXT_shader_subgroup_ballot") define VK_EXT_SHADER_SUBGROUP_BALLOT_SPEC_VERSION 1
+@extension("VK_EXT_shader_subgroup_ballot") define VK_EXT_SHADER_SUBGROUP_BALLOT_EXTENSION_NAME "VK_EXT_shader_subgroup_ballot"
+
+// 66
+@extension("VK_EXT_shader_subgroup_vote") define VK_EXT_SHADER_SUBGROUP_VOTE_SPEC_VERSION 1
+@extension("VK_EXT_shader_subgroup_vote") define VK_EXT_SHADER_SUBGROUP_VOTE_EXTENSION_NAME "VK_EXT_shader_subgroup_vote"
+
+// 70
+@extension("VK_KHR_maintenance1") define VK_KHR_MAINTENANCE1_SPEC_VERSION 1
+@extension("VK_KHR_maintenance1") define VK_KHR_MAINTENANCE1_EXTENSION_NAME "VK_KHR_maintenance1"
+
 // 87
 @extension("VK_NVX_device_generated_commands") define VK_NVX_DEVICE_GENERATED_COMMANDS_SPEC_VERSION 1
 @extension("VK_NVX_device_generated_commands") define VK_NVX_DEVICE_GENERATED_COMMANDS_EXTENSION_NAME "VK_NVX_device_generated_commands"
 
+// 89
+@extension("VK_EXT_direct_mode_display") define VK_EXT_DIRECT_MODE_DISPLAY_SPEC_VERSION 1
+@extension("VK_EXT_direct_mode_display") define VK_EXT_DIRECT_MODE_DISPLAY_EXTENSION_NAME "VK_EXT_direct_mode_display"
+
+// 90
+@extension("VK_EXT_acquire_xlib_display") define VK_EXT_ACQUIRE_XLIB_DISPLAY_SPEC_VERSION 1
+@extension("VK_EXT_acquire_xlib_display") define VK_EXT_ACQUIRE_XLIB_DISPLAY_EXTENSION_NAME "VK_EXT_acquire_xlib_display"
+
+// 91
+@extension("VK_EXT_display_surface_counter") define VK_EXT_DISPLAY_SURFACE_COUNTER_SPEC_VERSION 1
+@extension("VK_EXT_display_surface_counter") define VK_EXT_DISPLAY_SURFACE_COUNTER_EXTENSION_NAME "VK_EXT_display_surface_counter"
+
+// 92
+@extension("VK_EXT_display_control") define VK_EXT_DISPLAY_CONTROL_SPEC_VERSION 1
+@extension("VK_EXT_display_control") define VK_EXT_DISPLAY_CONTROL_COUNTER_EXTENSION_NAME "VK_EXT_display_control"
+
+// 105
+@extension("VK_EXT_swapchain_colorspace") define VK_EXT_SWAPCHAIN_COLORSPACE_SPEC_VERSION 1
+@extension("VK_EXT_swapchain_colorspace") define VK_EXT_SWAPCHAIN_COLORSPACE_COUNTER_EXTENSION_NAME "VK_EXT_swapchain_colorspace"
 
 /////////////
 //  Types  //
@@ -787,9 +830,23 @@
     //@extension("VK_NV_win32_keyed_mutex")
     VK_STRUCTURE_TYPE_WIN32_KEYED_MUTEX_ACQUIRE_RELEASE_INFO_NV = 1000058000,
 
+    //@extension("VK_KHR_get_physical_device_properties2")
+    VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2_KHR            = 1000059000,
+    VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2_KHR          = 1000059001,
+    VK_STRUCTURE_TYPE_FORMAT_PROPERTIES_2_KHR                   = 1000059002,
+    VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2_KHR             = 1000059003,
+    VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_FORMAT_INFO_2_KHR   = 1000059004,
+    VK_STRUCTURE_TYPE_QUEUE_FAMILY_PROPERTIES_2_KHR             = 1000059005,
+    VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_PROPERTIES_2_KHR   = 1000059006,
+    VK_STRUCTURE_TYPE_SPARSE_IMAGE_FORMAT_PROPERTIES_2_KHR      = 1000059007,
+    VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SPARSE_IMAGE_FORMAT_INFO_2_KHR = 1000059008,
+
     //@extension("VK_EXT_validation_flags")
     VK_STRUCTURE_TYPE_VALIDATION_FLAGS_EXT                      = 1000061000,
 
+    //@extension("VK_NN_vi_surface")
+    VK_STRUCTURE_TYPE_VI_SURFACE_CREATE_INFO_NN                 = 1000062000,
+
     //@extension("VK_NVX_device_generated_commands")
     VK_STRUCTURE_TYPE_OBJECT_TABLE_CREATE_INFO_NVX              = 1000086000,
     VK_STRUCTURE_TYPE_INDIRECT_COMMANDS_LAYOUT_CREATE_INFO_NVX  = 1000086001,
@@ -797,6 +854,15 @@
     VK_STRUCTURE_TYPE_CMD_RESERVE_SPACE_FOR_COMMANDS_INFO_NVX   = 1000086003,
     VK_STRUCTURE_TYPE_DEVICE_GENERATED_COMMANDS_LIMITS_NVX      = 1000086004,
     VK_STRUCTURE_TYPE_DEVICE_GENERATED_COMMANDS_FEATURES_NVX    = 1000086005,
+
+    //@extension("VK_EXT_display_surface_counter")
+    VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES2_EXT                 = 1000090000,
+
+    //@extension("VK_EXT_display_control")
+    VK_STRUCTURE_TYPE_DISPLAY_POWER_INFO_EXT                    = 1000091000,
+    VK_STRUCTURE_TYPE_DEVICE_EVENT_INFO_EXT                     = 1000091001,
+    VK_STRUCTURE_TYPE_DISPLAY_EVENT_INFO_EXT                    = 1000091002,
+    VK_STRUCTURE_TYPE_SWAPCHAIN_COUNTER_CREATE_INFO_EXT         = 1000091003,
 }
 
 enum VkSubpassContents {
@@ -853,6 +919,9 @@
 
     //@extension("VK_NV_glsl_shader")
     VK_ERROR_INVALID_SHADER_NV                              = 0xC4650720, // -1000012000
+
+    //@extension("VK_KHR_maintenance1")
+    VK_ERROR_OUT_OF_POOL_MEMORY_KHR                         = 0xC4642878, // -1000069000
 }
 
 enum VkDynamicState {
@@ -878,6 +947,20 @@
 @extension("VK_KHR_surface")
 enum VkColorSpaceKHR {
     VK_COLORSPACE_SRGB_NONLINEAR_KHR                        = 0x00000000,
+
+    //@extension("VK_EXT_swapchain_colorspace")
+    VK_COLOR_SPACE_DISPLAY_P3_LINEAR_EXT                    = 1000104001,
+    VK_COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT                 = 1000104002,
+    VK_COLOR_SPACE_SCRGB_LINEAR_EXT                         = 1000104003,
+    VK_COLOR_SPACE_SCRGB_NONLINEAR_EXT                      = 1000104004,
+    VK_COLOR_SPACE_DCI_P3_LINEAR_EXT                        = 1000104005,
+    VK_COLOR_SPACE_DCI_P3_NONLINEAR_EXT                     = 1000104006,
+    VK_COLOR_SPACE_BT709_LINEAR_EXT                         = 1000104007,
+    VK_COLOR_SPACE_BT709_NONLINEAR_EXT                      = 1000104008,
+    VK_COLOR_SPACE_BT2020_LINEAR_EXT                        = 1000104009,
+    VK_COLOR_SPACE_BT2020_NONLINEAR_EXT                     = 1000104010,
+    VK_COLOR_SPACE_ADOBERGB_LINEAR_EXT                      = 1000104011,
+    VK_COLOR_SPACE_ADOBERGB_NONLINEAR_EXT                   = 1000104012,
 }
 
 @extension("VK_EXT_debug_report")
@@ -955,6 +1038,23 @@
     VK_OBJECT_ENTRY_PUSH_CONSTANT_NVX                       = 4,
 }
 
+@extension("VK_EXT_display_control")
+enum VkDisplayPowerStateEXT {
+    VK_DISPLAY_POWER_STATE_OFF_EXT                          = 0,
+    VK_DISPLAY_POWER_STATE_SUSPEND_EXT                      = 1,
+    VK_DISPLAY_POWER_STATE_ON_EXT                           = 2,
+}
+
+@extension("VK_EXT_display_control")
+enum VkDeviceEventTypeEXT {
+    VK_DEVICE_EVENT_TYPE_DISPLAY_HOTPLUG_EXT                = 0,
+}
+
+@extension("VK_EXT_display_control")
+enum VkDisplayEventTypeEXT {
+    VK_DISPLAY_EVENT_TYPE_FIRST_PIXEL_OUT_EXT               = 0,
+}
+
 /////////////////
 //  Bitfields  //
 /////////////////
@@ -1078,6 +1178,9 @@
     VK_IMAGE_CREATE_SPARSE_ALIASED_BIT                      = 0x00000004,    /// Image should support constent data access to physical memory blocks mapped into multiple locations of sparse images
     VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT                      = 0x00000008,    /// Allows image views to have different format than the base image
     VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT                     = 0x00000010,    /// Allows creating image views with cube type from the created image
+
+    //@extension("VK_KHR_maintenance1")
+    VK_IMAGE_CREATE_2D_ARRAY_COMPATIBLE_BIT_KHR             = 0x00000020,
 }
 
 /// Image view creation flags
@@ -1132,6 +1235,10 @@
 
     //@extension("VK_IMG_filter_cubic")
     VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_CUBIC_BIT_IMG    = 0x00002000,
+
+    //@extension("VK_KHR_maintenance1")
+    VK_FORMAT_FEATURE_TRANSFER_SRC_BIT_KHR                  = 0x00004000,
+    VK_FORMAT_FEATURE_TRANSFER_DST_BIT_KHR                  = 0x00008000,
 }
 
 /// Query control flags
@@ -1523,6 +1630,18 @@
     VK_EXTERNAL_MEMORY_FEATURE_IMPORTABLE_BIT_NV            = 0x00000004,
 }
 
+@extension("VK_NN_vi_surface")
+type VkFlags VkViSurfaceCreateFlagsNN
+//@extension("VK_NN_vi_surface")
+//bitfield VkViSurfaceCreateFlagBitsNN {
+//}
+
+@extension("VK_KHR_maintenance1")
+type VkFlags VkCommandPoolTrimFlagsKHR
+//@extension("VK_KHR_maintenance1")
+//bitfield VkCommandPoolTrimFlagBitsKHR {
+//}
+
 @extension("VK_NVX_device_generated_commands")
 type VkFlags VkIndirectCommandsLayoutUsageFlagsNVX
 @extension("VK_NVX_device_generated_commands")
@@ -1541,6 +1660,12 @@
     VK_OBJECT_ENTRY_USAGE_COMPUTE_BIT_NVX                   = 0x00000002,
 }
 
+@extension("VK_EXT_display_surface_counter")
+type VkFlags VkSurfaceCounterFlagsEXT
+@extension("VK_EXT_display_surface_counter")
+bitfield VkSurfaceCounterFlagBitsEXT {
+    VK_SURFACE_COUNTER_VBLANK_EXT                           = 0x00000001,
+}
 
 //////////////////
 //  Structures  //
@@ -2953,6 +3078,77 @@
     const u64*                                  pReleaseKeys
 }
 
+@extension("VK_KHR_get_physical_device_properties2")
+class VkPhysicalDeviceFeatures2KHR {
+    VkStructureType                             sType
+    void*                                       pNext
+    VkPhysicalDeviceFeatures                    features
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+class VkPhysicalDeviceProperties2KHR {
+    VkStructureType                             sType
+    void*                                       pNext
+    VkPhysicalDeviceProperties                  properties
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+class VkFormatProperties2KHR {
+    VkStructureType                             sType
+    void*                                       pNext
+    VkFormatProperties                          formatProperties
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+class VkImageFormatProperties2KHR {
+    VkStructureType                             sType
+    void*                                       pNext
+    VkImageFormatProperties                     imageFormatProperties
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+class VkPhysicalDeviceImageFormatInfo2KHR {
+    VkStructureType                             sType
+    const void*                                 pNext
+    VkFormat                                    format
+    VkImageType                                 type
+    VkImageTiling                               tiling
+    VkImageUsageFlags                           usage
+    VkImageCreateFlags                          flags
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+class VkQueueFamilyProperties2KHR {
+    VkStructureType                             sType
+    void*                                       pNext
+    VkQueueFamilyProperties                     queueFamilyProperties
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+class VkPhysicalDeviceMemoryProperties2KHR {
+    VkStructureType                             sType
+    void*                                       pNext
+    VkPhysicalDeviceMemoryProperties            memoryProperties
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+class VkSparseImageFormatProperties2KHR {
+    VkStructureType                             sType
+    void*                                       pNext
+    VkSparseImageFormatProperties               properties
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+class VkPhysicalDeviceSparseImageFormatInfo2KHR {
+    VkStructureType                             sType
+    const void*                                 pNext
+    VkFormat                                    format
+    VkImageType                                 type
+    VkSampleCountFlagBits                       samples
+    VkImageUsageFlags                           usage
+    VkImageTiling                               tiling
+}
+
 @extension("VK_EXT_validation_flags")
 class VkValidationFlagsEXT {
     VkStructureType                             sType
@@ -2961,6 +3157,14 @@
     VkValidationCheckEXT*                       pDisabledValidationChecks
 }
 
+@extension("VK_NN_vi_surface")
+class VkViSurfaceCreateInfoNN {
+    VkStructureType                             sType
+    const void*                                 pNext
+    VkViSurfaceCreateFlagsNN                    flags
+    void*                                       window
+}
+
 @extension("VK_NVX_device_generated_commands")
 class VkDeviceGeneratedCommandsFeaturesNVX {
     VkStructureType                             sType
@@ -3077,6 +3281,7 @@
     VkObjectEntryTypeNVX                        type
     VkObjectEntryUsageFlagsNVX                  flags
     VkBuffer                                    buffer
+    VkIndexType                                 indexType
 }
 
 @extension("VK_NVX_device_generated_commands")
@@ -3087,6 +3292,50 @@
     VkShaderStageFlags                          stageFlags
 }
 
+@extension("VK_EXT_display_surface_counter")
+class VkSurfaceCapabilities2EXT {
+    VkStructureType                             sType
+    void*                                       pNext
+    u32                                         minImageCount
+    u32                                         maxImageCount
+    VkExtent2D                                  currentExtent
+    VkExtent2D                                  minImageExtent
+    VkExtent2D                                  maxImageExtent
+    u32                                         maxImageArrayLayers
+    VkSurfaceTransformFlagsKHR                  supportedTransforms
+    VkSurfaceTransformFlagBitsKHR               currentTransform
+    VkCompositeAlphaFlagsKHR                    supportedCompositeAlpha
+    VkImageUsageFlags                           supportedUsageFlags
+    VkSurfaceCounterFlagsEXT                    supportedSurfaceCounters
+}
+
+@extension("VK_EXT_display_control")
+class VkDisplayPowerInfoEXT {
+    VkStructureType                             sType
+    const void*                                 pNext
+    VkDisplayPowerStateEXT                      powerState
+}
+
+@extension("VK_EXT_display_control")
+class VkDeviceEventInfoEXT {
+    VkStructureType                             sType
+    const void*                                 pNext
+    VkDeviceEventTypeEXT                        deviceEvent
+}
+
+@extension("VK_EXT_display_control")
+class VkDisplayEventInfoEXT {
+    VkStructureType                             sType
+    const void*                                 pNext
+    VkDisplayEventTypeEXT                       displayEvent
+}
+
+@extension("VK_EXT_display_control")
+class VkSwapchainCounterCreateInfoEXT {
+    VkStructureType                             sType
+    const void*                                 pNext
+    VkSurfaceCounterFlagsEXT                    surfaceCounters
+}
 
 ////////////////
 //  Commands  //
@@ -5768,6 +6017,70 @@
     return ?
 }
 
+@extension("VK_KHR_get_physical_device_properties2")
+cmd void vkGetPhysicalDeviceFeatures2KHR(
+        VkPhysicalDevice                            physicalDevice,
+        VkPhysicalDeviceFeatures2KHR*               pFeatures) {
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+cmd void vkGetPhysicalDeviceProperties2KHR(
+        VkPhysicalDevice                            physicalDevice,
+        VkPhysicalDeviceProperties2KHR*             pProperties) {
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+cmd void vkGetPhysicalDeviceFormatProperties2KHR(
+        VkPhysicalDevice                            physicalDevice,
+        VkFormat                                    format,
+        VkFormatProperties2KHR*                     pFormatProperties) {
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+cmd VkResult vkGetPhysicalDeviceImageFormatProperties2KHR(
+        VkPhysicalDevice                            physicalDevice,
+        const VkPhysicalDeviceImageFormatInfo2KHR*  pImageFormatInfo,
+        VkImageFormatProperties2KHR*                pImageFormatProperties) {
+    return ?
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+cmd void vkGetPhysicalDeviceQueueFamilyProperties2KHR(
+        VkPhysicalDevice                            physicalDevice,
+        u32*                                        pQueueFamilyPropertyCount,
+        VkQueueFamilyProperties2KHR*                pQueueFamilyProperties) {
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+cmd void vkGetPhysicalDeviceMemoryProperties2KHR(
+        VkPhysicalDevice                            physicalDevice,
+        VkPhysicalDeviceMemoryProperties2KHR*       pMemoryProperties) {
+}
+
+@extension("VK_KHR_get_physical_device_properties2")
+cmd void vkGetPhysicalDeviceSparseImageFormatProperties2KHR(
+        VkPhysicalDevice                                    physicalDevice,
+        const VkPhysicalDeviceSparseImageFormatInfo2KHR*    pFormatInfo,
+        u32*                                                pPropertyCount,
+        VkSparseImageFormatProperties2KHR*                  pProperties) {
+}
+
+@extension("VK_NN_vi_surface")
+cmd VkResult vkCreateViSurfaceNN(
+        VkInstance                                  instance,
+        const VkViSurfaceCreateInfoNN*              pCreateInfo,
+        const VkAllocationCallbacks*                pAllocator,
+        VkSurfaceKHR*                               pSurface) {
+    return ?
+}
+
+@extension("VK_KHR_maintenance1")
+cmd void vkTrimCommandPoolKHR(
+        VkDevice                                    device,
+        VkCommandPool                               commandPool,
+        VkCommandPoolTrimFlagsKHR                   flags) {
+}
+
 @extension("VK_NVX_device_generated_commands")
 cmd void vkCmdProcessCommandsNVX(
         VkCommandBuffer                             commandBuffer,
@@ -5839,6 +6152,74 @@
         VkDeviceGeneratedCommandsLimitsNVX*         pLimits) {
 }
 
+@extension("VK_EXT_direct_mode_display")
+cmd VkResult vkReleaseDisplayEXT(
+        VkPhysicalDevice                            physicalDevice,
+        VkDisplayKHR                                display) {
+    return ?
+}
+
+@extension("VK_EXT_acquire_xlib_display")
+cmd VkResult vkAcquireXlibDisplayEXT(
+        VkPhysicalDevice                            physicalDevice,
+        platform.Display*                           dpy,
+        VkDisplayKHR                                display) {
+    return ?
+}
+
+@extension("VK_EXT_acquire_xlib_display")
+cmd VkResult vkGetRandROutputDisplayEXT(
+        VkPhysicalDevice                            physicalDevice,
+        platform.Display*                           dpy,
+        platform.RROutput                           rrOutput,
+        VkDisplayKHR*                               pDisplay) {
+    return ?
+}
+
+@extension("VK_EXT_display_surface_counter")
+cmd VkResult vkGetPhysicalDeviceSurfaceCapabilities2EXT(
+        VkPhysicalDevice                            physicalDevice,
+        VkSurfaceKHR                                surface,
+        VkSurfaceCapabilities2EXT*                  pSurfaceCapabilities) {
+    return ?
+}
+
+@extension("VK_EXT_display_control")
+cmd VkResult vkDisplayPowerControlEXT(
+        VkDevice                                    device,
+        VkDisplayKHR                                display,
+        const VkDisplayPowerInfoEXT*                pDisplayPowerInfo) {
+    return ?
+}
+
+@extension("VK_EXT_display_control")
+cmd VkResult vkRegisterDeviceEventEXT(
+        VkDevice                                    device,
+        const VkDeviceEventInfoEXT*                 pDeviceEventInfo,
+        const VkAllocationCallbacks*                pAllocator,
+        VkFence*                                    pFence) {
+    return ?
+}
+
+@extension("VK_EXT_display_control")
+cmd VkResult vkRegisterDisplayEventEXT(
+        VkDevice                                    device,
+        VkDisplayKHR                                display,
+        const VkDisplayEventInfoEXT*                pDisplayEventInfo,
+        const VkAllocationCallbacks*                pAllocator,
+        VkFence*                                    pFence) {
+    return ?
+}
+
+@extension("VK_EXT_display_control")
+cmd VkResult vkGetSwapchainCounterEXT(
+        VkDevice                                    device,
+        VkSwapchainKHR                              swapchain,
+        VkSurfaceCounterFlagBitsEXT                 counter,
+        u64*                                        pCounterValue) {
+    return ?
+}
+
 ////////////////
 // Validation //
 ////////////////