// Copyright 2014-2022 The Khronos Group Inc. // // SPDX-License-Identifier: CC-BY-4.0 [[wsi]] = Window System Integration (WSI) This chapter discusses the window system integration (WSI) between the Vulkan API and the various forms of displaying the results of rendering to a user. Since the Vulkan API can: be used without displaying results, WSI is provided through the use of optional Vulkan extensions. This chapter provides an overview of WSI. See the appendix for additional details of each WSI extension, including which extensions must: be enabled in order to use each of the functions described in this chapter. == WSI Platform A platform is an abstraction for a window system, OS, etc. Some examples include MS Windows, Android, and Wayland. The Vulkan API may: be integrated in a unique manner for each platform. The Vulkan API does not define any type of platform object. Platform-specific WSI extensions are defined, each containing platform-specific functions for using WSI. Use of these extensions is guarded by preprocessor symbols as defined in the <> appendix. In order for an application to be compiled to use WSI with a given platform, it must either: * `#define` the appropriate preprocessor symbol prior to including the `{full_header}` header file, or * include `{core_header}` and any native platform headers, followed by the appropriate platform-specific header. The preprocessor symbols and platform-specific headers are defined in the <> table. Each platform-specific extension is an instance extension. The application must: enable instance extensions with fname:vkCreateInstance before using them. == WSI Surface [open,refpage='VkSurfaceKHR',desc='Opaque handle to a surface object',type='handles'] -- Native platform surface or window objects are abstracted by surface objects, which are represented by sname:VkSurfaceKHR handles: include::{generated}/api/handles/VkSurfaceKHR.adoc[] The `apiext:VK_KHR_surface` extension declares the sname:VkSurfaceKHR object, and provides a function for destroying sname:VkSurfaceKHR objects. Separate platform-specific extensions each provide a function for creating a sname:VkSurfaceKHR object for the respective platform. From the application's perspective this is an opaque handle, just like the handles of other Vulkan objects. ifdef::implementation-guide[] [NOTE] .Note ==== On certain platforms, the Vulkan loader and ICDs may: have conventions that treat the handle as a pointer to a structure containing the platform-specific information about the surface. This will be described in the documentation for the loader-ICD interface, and in the `vk_icd.h` header file of the LoaderAndTools source-code repository. This does not affect the loader-layer interface; layers may: wrap sname:VkSurfaceKHR objects. ==== endif::implementation-guide[] -- ifdef::editing-notes[] [NOTE] .editing-note ==== TODO: Consider replacing the above note editing note with a pointer to the loader specification, when it exists. However, the information is not relevant to users of the API nor does it affect conformance of a Vulkan implementation. ==== endif::editing-notes[] ifdef::VK_KHR_android_surface[] include::{chapters}/VK_KHR_android_surface/platformCreateSurface_android.adoc[] endif::VK_KHR_android_surface[] ifdef::VK_KHR_wayland_surface[] include::{chapters}/VK_KHR_wayland_surface/platformCreateSurface_wayland.adoc[] endif::VK_KHR_wayland_surface[] ifdef::VK_KHR_win32_surface[] include::{chapters}/VK_KHR_win32_surface/platformCreateSurface_win32.adoc[] endif::VK_KHR_win32_surface[] ifdef::VK_KHR_xcb_surface[] include::{chapters}/VK_KHR_xcb_surface/platformCreateSurface_xcb.adoc[] endif::VK_KHR_xcb_surface[] ifdef::VK_KHR_xlib_surface[] include::{chapters}/VK_KHR_xlib_surface/platformCreateSurface_xlib.adoc[] endif::VK_KHR_xlib_surface[] ifdef::VK_EXT_directfb_surface[] include::{chapters}/VK_EXT_directfb_surface/platformCreateSurface_directfb.adoc[] endif::VK_EXT_directfb_surface[] ifdef::VK_FUCHSIA_imagepipe_surface[] include::{chapters}/VK_FUCHSIA_imagepipe_surface/platformCreateSurface_imagepipe.adoc[] endif::VK_FUCHSIA_imagepipe_surface[] ifdef::VK_GGP_stream_descriptor_surface[] include::{chapters}/VK_GGP_stream_descriptor_surface/platformCreateSurface_streamdescriptor.adoc[] endif::VK_GGP_stream_descriptor_surface[] ifdef::VK_MVK_ios_surface[] include::{chapters}/VK_MVK_ios_surface/platformCreateSurface_ios.adoc[] endif::VK_MVK_ios_surface[] ifdef::VK_MVK_macos_surface[] include::{chapters}/VK_MVK_macos_surface/platformCreateSurface_macos.adoc[] endif::VK_MVK_macos_surface[] ifdef::VK_NN_vi_surface[] include::{chapters}/VK_NN_vi_surface/platformCreateSurface_vi.adoc[] endif::VK_NN_vi_surface[] ifdef::VK_EXT_metal_surface[] include::{chapters}/VK_EXT_metal_surface/platformCreateSurface_metal.adoc[] endif::VK_EXT_metal_surface[] ifdef::VK_QNX_screen_surface[] include::{chapters}/VK_QNX_screen_surface/platformCreateSurface_screen.adoc[] endif::VK_QNX_screen_surface[] === Platform-Independent Information Once created, sname:VkSurfaceKHR objects can: be used in this and other extensions, in particular the `apiext:VK_KHR_swapchain` extension. Several WSI functions return ename:VK_ERROR_SURFACE_LOST_KHR if the surface becomes no longer available. After such an error, the surface (and any child swapchain, if one exists) should: be destroyed, as there is no way to restore them to a not-lost state. Applications may: attempt to create a new sname:VkSurfaceKHR using the same native platform window object, but whether such re-creation will succeed is platform-dependent and may: depend on the reason the surface became unavailable. A lost surface does not otherwise cause devices to be <>. [open,refpage='vkDestroySurfaceKHR',desc='Destroy a VkSurfaceKHR object',type='protos'] -- To destroy a sname:VkSurfaceKHR object, call: include::{generated}/api/protos/vkDestroySurfaceKHR.adoc[] * pname:instance is the instance used to create the surface. * pname:surface is the surface to destroy. * pname:pAllocator is the allocator used for host memory allocated for the surface object when there is no more specific allocator available (see <>). Destroying a sname:VkSurfaceKHR merely severs the connection between Vulkan and the native surface, and does not imply destroying the native surface, closing a window, or similar behavior. .Valid Usage **** * [[VUID-vkDestroySurfaceKHR-surface-01266]] All sname:VkSwapchainKHR objects created for pname:surface must: have been destroyed prior to destroying pname:surface * [[VUID-vkDestroySurfaceKHR-surface-01267]] If sname:VkAllocationCallbacks were provided when pname:surface was created, a compatible set of callbacks must: be provided here * [[VUID-vkDestroySurfaceKHR-surface-01268]] If no sname:VkAllocationCallbacks were provided when pname:surface was created, pname:pAllocator must: be `NULL` **** include::{generated}/validity/protos/vkDestroySurfaceKHR.adoc[] -- ifdef::VK_KHR_display[] include::{chapters}/VK_KHR_display/display.adoc[] endif::VK_KHR_display[] ifdef::VK_EXT_headless_surface[] include::{chapters}/VK_EXT_headless_surface/headless.adoc[] endif::VK_EXT_headless_surface[] == Querying for WSI Support Not all physical devices will include WSI support. Within a physical device, not all queue families will support presentation. WSI support and compatibility can: be determined in a platform-neutral manner (which determines support for presentation to a particular surface object) and additionally may: be determined in platform-specific manners (which determine support for presentation on the specified physical device but do not guarantee support for presentation to a particular surface object). [open,refpage='vkGetPhysicalDeviceSurfaceSupportKHR',desc='Query if presentation is supported',type='protos'] -- To determine whether a queue family of a physical device supports presentation to a given surface, call: include::{generated}/api/protos/vkGetPhysicalDeviceSurfaceSupportKHR.adoc[] * pname:physicalDevice is the physical device. * pname:queueFamilyIndex is the queue family. * pname:surface is the surface. * pname:pSupported is a pointer to a basetype:VkBool32, which is set to ename:VK_TRUE to indicate support, and ename:VK_FALSE otherwise. .Valid Usage **** * [[VUID-vkGetPhysicalDeviceSurfaceSupportKHR-queueFamilyIndex-01269]] pname:queueFamilyIndex must: be less than pname:pQueueFamilyPropertyCount returned by fname:vkGetPhysicalDeviceQueueFamilyProperties for the given pname:physicalDevice **** include::{generated}/validity/protos/vkGetPhysicalDeviceSurfaceSupportKHR.adoc[] -- ifdef::VK_KHR_android_surface[] include::{chapters}/VK_KHR_android_surface/platformQuerySupport_android.adoc[] endif::VK_KHR_android_surface[] ifdef::VK_KHR_wayland_surface[] include::{chapters}/VK_KHR_wayland_surface/platformQuerySupport_wayland.adoc[] endif::VK_KHR_wayland_surface[] ifdef::VK_KHR_win32_surface[] include::{chapters}/VK_KHR_win32_surface/platformQuerySupport_win32.adoc[] endif::VK_KHR_win32_surface[] ifdef::VK_KHR_xcb_surface[] include::{chapters}/VK_KHR_xcb_surface/platformQuerySupport_xcb.adoc[] endif::VK_KHR_xcb_surface[] ifdef::VK_KHR_xlib_surface[] include::{chapters}/VK_KHR_xlib_surface/platformQuerySupport_xlib.adoc[] endif::VK_KHR_xlib_surface[] ifdef::VK_EXT_directfb_surface[] include::{chapters}/VK_EXT_directfb_surface/platformQuerySupport_directfb.adoc[] endif::VK_EXT_directfb_surface[] ifdef::VK_FUCHSIA_imagepipe_surface[] include::{chapters}/VK_FUCHSIA_imagepipe_surface/platformQuerySupport_imagepipe.adoc[] endif::VK_FUCHSIA_imagepipe_surface[] ifdef::VK_GGP_stream_descriptor_surface[] include::{chapters}/VK_GGP_stream_descriptor_surface/platformQuerySupport_streamdescriptor.adoc[] endif::VK_GGP_stream_descriptor_surface[] ifdef::VK_MVK_ios_surface[] include::{chapters}/VK_MVK_ios_surface/platformQuerySupport_ios.adoc[] endif::VK_MVK_ios_surface[] ifdef::VK_MVK_macos_surface[] include::{chapters}/VK_MVK_macos_surface/platformQuerySupport_macos.adoc[] endif::VK_MVK_macos_surface[] ifdef::VK_NN_vi_surface[] include::{chapters}/VK_NN_vi_surface/platformQuerySupport_vi.adoc[] endif::VK_NN_vi_surface[] ifdef::VK_QNX_screen_surface[] include::{chapters}/VK_QNX_screen_surface/platformQuerySupport_screen.adoc[] endif::VK_QNX_screen_surface[] == Surface Queries The capabilities of a swapchain targeting a surface are the intersection of the capabilities of the WSI platform, the native window or display, and the physical device. The resulting capabilities can: be obtained with the queries listed below in this section. [NOTE] .Note ==== In addition to the surface capabilities as obtained by surface queries below, swapchain images are also subject to ordinary image creation limits as reported by flink:vkGetPhysicalDeviceImageFormatProperties. As an application is instructed by the appropriate Valid Usage sections, both the surface capabilities and the image creation limits have to be satisfied whenever swapchain images are created. ==== === Surface Capabilities [open,refpage='vkGetPhysicalDeviceSurfaceCapabilitiesKHR',desc='Query surface capabilities',type='protos'] -- :refpage: vkGetPhysicalDeviceSurfaceCapabilitiesKHR To query the basic capabilities of a surface, needed in order to create a swapchain, call: include::{generated}/api/protos/vkGetPhysicalDeviceSurfaceCapabilitiesKHR.adoc[] * pname:physicalDevice is the physical device that will be associated with the swapchain to be created, as described for flink:vkCreateSwapchainKHR. * pname:surface is the surface that will be associated with the swapchain. * pname:pSurfaceCapabilities is a pointer to a slink:VkSurfaceCapabilitiesKHR structure in which the capabilities are returned. .Valid Usage **** include::{chapters}/commonvalidity/surface_physical_device_common.adoc[] **** include::{generated}/validity/protos/vkGetPhysicalDeviceSurfaceCapabilitiesKHR.adoc[] -- [open,refpage='VkSurfaceCapabilitiesKHR',desc='Structure describing capabilities of a surface',type='structs'] -- The sname:VkSurfaceCapabilitiesKHR structure is defined as: include::{generated}/api/structs/VkSurfaceCapabilitiesKHR.adoc[] // These members are defined identically in VkSurfaceCapabilities2EXT, an // extendable structure version of this query, so they are just reused from // here. // tag::surface_capabilities_members[] * pname:minImageCount is the minimum number of images the specified device supports for a swapchain created for the surface, and will be at least one. * pname:maxImageCount is the maximum number of images the specified device supports for a swapchain created for the surface, and will be either 0, or greater than or equal to pname:minImageCount. A value of 0 means that there is no limit on the number of images, though there may: be limits related to the total amount of memory used by presentable images. * pname:currentExtent is the current width and height of the surface, or the special value [eq]#(0xFFFFFFFF, 0xFFFFFFFF)# indicating that the surface size will be determined by the extent of a swapchain targeting the surface. * pname:minImageExtent contains the smallest valid swapchain extent for the surface on the specified device. The pname:width and pname:height of the extent will each be less than or equal to the corresponding pname:width and pname:height of pname:currentExtent, unless pname:currentExtent has the special value described above. * pname:maxImageExtent contains the largest valid swapchain extent for the surface on the specified device. The pname:width and pname:height of the extent will each be greater than or equal to the corresponding pname:width and pname:height of pname:minImageExtent. The pname:width and pname:height of the extent will each be greater than or equal to the corresponding pname:width and pname:height of pname:currentExtent, unless pname:currentExtent has the special value described above. * pname:maxImageArrayLayers is the maximum number of layers presentable images can: have for a swapchain created for this device and surface, and will be at least one. * pname:supportedTransforms is a bitmask of elink:VkSurfaceTransformFlagBitsKHR indicating the presentation transforms supported for the surface on the specified device. At least one bit will be set. * pname:currentTransform is elink:VkSurfaceTransformFlagBitsKHR value indicating the surface's current transform relative to the presentation engine's natural orientation. * pname:supportedCompositeAlpha is a bitmask of elink:VkCompositeAlphaFlagBitsKHR, representing the alpha compositing modes supported by the presentation engine for the surface on the specified device, and at least one bit will be set. Opaque composition can: be achieved in any alpha compositing mode by either using an image format that has no alpha component, or by ensuring that all pixels in the presentable images have an alpha value of 1.0. * pname:supportedUsageFlags is a bitmask of elink:VkImageUsageFlagBits representing the ways the application can: use the presentable images of a swapchain created ifdef::VK_KHR_shared_presentable_image[] with elink:VkPresentModeKHR set to ename:VK_PRESENT_MODE_IMMEDIATE_KHR, ename:VK_PRESENT_MODE_MAILBOX_KHR, ename:VK_PRESENT_MODE_FIFO_KHR or ename:VK_PRESENT_MODE_FIFO_RELAXED_KHR endif::VK_KHR_shared_presentable_image[] for the surface on the specified device. ename:VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT must: be included in the set. Implementations may: support additional usages. // end::surface_capabilities_members[] ifdef::VK_KHR_shared_presentable_image[] [NOTE] .Note ==== Supported usage flags of a presentable image when using ename:VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR or ename:VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR presentation mode are provided by slink:VkSharedPresentSurfaceCapabilitiesKHR::pname:sharedPresentSupportedUsageFlags. ==== endif::VK_KHR_shared_presentable_image[] [NOTE] .Note ==== Formulas such as [eq]#min(N, pname:maxImageCount)# are not correct, since pname:maxImageCount may: be zero. ==== include::{generated}/validity/structs/VkSurfaceCapabilitiesKHR.adoc[] -- ifdef::VK_KHR_get_surface_capabilities2[] [open,refpage='vkGetPhysicalDeviceSurfaceCapabilities2KHR',desc='Reports capabilities of a surface on a physical device',type='protos'] -- :refpage: vkGetPhysicalDeviceSurfaceCapabilities2KHR To query the basic capabilities of a surface defined by the core or extensions, call: include::{generated}/api/protos/vkGetPhysicalDeviceSurfaceCapabilities2KHR.adoc[] * pname:physicalDevice is the physical device that will be associated with the swapchain to be created, as described for flink:vkCreateSwapchainKHR. * pname:pSurfaceInfo is a pointer to a slink:VkPhysicalDeviceSurfaceInfo2KHR structure describing the surface and other fixed parameters that would be consumed by flink:vkCreateSwapchainKHR. * pname:pSurfaceCapabilities is a pointer to a slink:VkSurfaceCapabilities2KHR structure in which the capabilities are returned. fname:vkGetPhysicalDeviceSurfaceCapabilities2KHR behaves similarly to flink:vkGetPhysicalDeviceSurfaceCapabilitiesKHR, with the ability to specify extended inputs via chained input structures, and to return extended information via chained output structures. .Valid Usage **** include::{chapters}/commonvalidity/surface_info_physical_device_surfaceless_common.adoc[] ifdef::VK_EXT_full_screen_exclusive+VK_KHR_win32_surface[] * [[VUID-vkGetPhysicalDeviceSurfaceCapabilities2KHR-pNext-02671]] If a slink:VkSurfaceCapabilitiesFullScreenExclusiveEXT structure is included in the pname:pNext chain of pname:pSurfaceCapabilities, a slink:VkSurfaceFullScreenExclusiveWin32InfoEXT structure must: be included in the pname:pNext chain of pname:pSurfaceInfo endif::VK_EXT_full_screen_exclusive+VK_KHR_win32_surface[] ifdef::VK_EXT_surface_maintenance1[] * [[VUID-vkGetPhysicalDeviceSurfaceCapabilities2KHR-pNext-07776]] If a slink:VkSurfacePresentModeCompatibilityEXT structure is included in the pname:pNext chain of pname:pSurfaceCapabilities, a slink:VkSurfacePresentModeEXT structure must: be included in the pname:pNext chain of pname:pSurfaceInfo * [[VUID-vkGetPhysicalDeviceSurfaceCapabilities2KHR-pNext-07777]] If a slink:VkSurfacePresentScalingCapabilitiesEXT structure is included in the pname:pNext chain of pname:pSurfaceCapabilities, a slink:VkSurfacePresentModeEXT structure must: be included in the pname:pNext chain of pname:pSurfaceInfo ifdef::VK_GOOGLE_surfaceless_query[] * [[VUID-vkGetPhysicalDeviceSurfaceCapabilities2KHR-pNext-07778]] If a slink:VkSurfacePresentModeCompatibilityEXT structure is included in the pname:pNext chain of pname:pSurfaceCapabilities, pname:pSurfaceInfo->surface must: be a valid slink:VkSurfaceKHR handle * [[VUID-vkGetPhysicalDeviceSurfaceCapabilities2KHR-pNext-07779]] If a slink:VkSurfacePresentScalingCapabilitiesEXT structure is included in the pname:pNext chain of pname:pSurfaceCapabilities, pname:pSurfaceInfo->surface must: be a valid slink:VkSurfaceKHR handle endif::VK_GOOGLE_surfaceless_query[] endif::VK_EXT_surface_maintenance1[] **** include::{generated}/validity/protos/vkGetPhysicalDeviceSurfaceCapabilities2KHR.adoc[] -- [open,refpage='VkPhysicalDeviceSurfaceInfo2KHR',desc='Structure specifying a surface and related swapchain creation parameters',type='structs'] -- The sname:VkPhysicalDeviceSurfaceInfo2KHR structure is defined as: include::{generated}/api/structs/VkPhysicalDeviceSurfaceInfo2KHR.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:surface is the surface that will be associated with the swapchain. The members of sname:VkPhysicalDeviceSurfaceInfo2KHR correspond to the arguments to flink:vkGetPhysicalDeviceSurfaceCapabilitiesKHR, with pname:sType and pname:pNext added for extensibility. ifdef::VK_EXT_full_screen_exclusive[] Additional capabilities of a surface may: be available to swapchains created with different full-screen exclusive settings - particularly if exclusive full-screen access is application controlled. These additional capabilities can: be queried by adding a slink:VkSurfaceFullScreenExclusiveInfoEXT structure to the pname:pNext chain of this structure when used to query surface properties. ifdef::VK_KHR_win32_surface[] Additionally, for Win32 surfaces with application controlled exclusive full-screen access, chaining a slink:VkSurfaceFullScreenExclusiveWin32InfoEXT structure may: also report additional surface capabilities. endif::VK_KHR_win32_surface[] These additional capabilities only apply to swapchains created with the same parameters included in the pname:pNext chain of slink:VkSwapchainCreateInfoKHR. endif::VK_EXT_full_screen_exclusive[] .Valid Usage **** ifdef::VK_KHR_win32_surface+VK_EXT_full_screen_exclusive[] * [[VUID-VkPhysicalDeviceSurfaceInfo2KHR-pNext-02672]] If the pname:pNext chain includes a slink:VkSurfaceFullScreenExclusiveInfoEXT structure with its pname:fullScreenExclusive member set to ename:VK_FULL_SCREEN_EXCLUSIVE_APPLICATION_CONTROLLED_EXT, and pname:surface was created using flink:vkCreateWin32SurfaceKHR, a slink:VkSurfaceFullScreenExclusiveWin32InfoEXT structure must: be included in the pname:pNext chain endif::VK_KHR_win32_surface+VK_EXT_full_screen_exclusive[] ifdef::VK_GOOGLE_surfaceless_query[] * [[VUID-VkPhysicalDeviceSurfaceInfo2KHR-pSurfaceInfo-06526]] When passed as the pname:pSurfaceInfo parameter of flink:vkGetPhysicalDeviceSurfaceCapabilities2KHR, if the `apiext:VK_GOOGLE_surfaceless_query` extension is enabled and the pname:pNext chain of the pname:pSurfaceCapabilities parameter includes sname:VkSurfaceProtectedCapabilitiesKHR, then pname:surface can: be dlink:VK_NULL_HANDLE. Otherwise, pname:surface must: be a valid slink:VkSurfaceKHR handle * [[VUID-VkPhysicalDeviceSurfaceInfo2KHR-pSurfaceInfo-06527]] When passed as the pname:pSurfaceInfo parameter of flink:vkGetPhysicalDeviceSurfaceFormats2KHR, if the `apiext:VK_GOOGLE_surfaceless_query` extension is enabled, then pname:surface can: be dlink:VK_NULL_HANDLE. Otherwise, pname:surface must: be a valid slink:VkSurfaceKHR handle * [[VUID-VkPhysicalDeviceSurfaceInfo2KHR-pSurfaceInfo-06528]] When passed as the pname:pSurfaceInfo parameter of flink:vkGetPhysicalDeviceSurfacePresentModes2EXT, if the `apiext:VK_GOOGLE_surfaceless_query` extension is enabled, then pname:surface can: be dlink:VK_NULL_HANDLE. Otherwise, pname:surface must: be a valid slink:VkSurfaceKHR handle endif::VK_GOOGLE_surfaceless_query[] ifndef::VK_GOOGLE_surfaceless_query[] * [[VUID-VkPhysicalDeviceSurfaceInfo2KHR-surface-06529]] pname:surface must: be a valid slink:VkSurfaceKHR handle endif::VK_GOOGLE_surfaceless_query[] **** include::{generated}/validity/structs/VkPhysicalDeviceSurfaceInfo2KHR.adoc[] -- ifdef::VK_EXT_full_screen_exclusive[] [open,refpage='VkSurfaceFullScreenExclusiveInfoEXT',desc='Structure specifying the preferred full-screen transition behavior',type='structs'] -- If the pname:pNext chain of slink:VkSwapchainCreateInfoKHR includes a sname:VkSurfaceFullScreenExclusiveInfoEXT structure, then that structure specifies the application's preferred full-screen transition behavior. The sname:VkSurfaceFullScreenExclusiveInfoEXT structure is defined as: include::{generated}/api/structs/VkSurfaceFullScreenExclusiveInfoEXT.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:fullScreenExclusive is a elink:VkFullScreenExclusiveEXT value specifying the preferred full-screen transition behavior. If this structure is not present, pname:fullScreenExclusive is considered to be ename:VK_FULL_SCREEN_EXCLUSIVE_DEFAULT_EXT. include::{generated}/validity/structs/VkSurfaceFullScreenExclusiveInfoEXT.adoc[] -- [open,refpage='VkFullScreenExclusiveEXT',desc='Hint values an application can specify affecting full-screen transition behavior',type='enums'] -- Possible values of sname:VkSurfaceFullScreenExclusiveInfoEXT::pname:fullScreenExclusive are: include::{generated}/api/enums/VkFullScreenExclusiveEXT.adoc[] * ename:VK_FULL_SCREEN_EXCLUSIVE_DEFAULT_EXT indicates the implementation should: determine the appropriate full-screen method by whatever means it deems appropriate. * ename:VK_FULL_SCREEN_EXCLUSIVE_ALLOWED_EXT indicates the implementation may: use full-screen exclusive mechanisms when available. Such mechanisms may: result in better performance and/or the availability of different presentation capabilities, but may: require a more disruptive transition during swapchain initialization, first presentation and/or destruction. * ename:VK_FULL_SCREEN_EXCLUSIVE_DISALLOWED_EXT indicates the implementation should: avoid using full-screen mechanisms which rely on disruptive transitions. * ename:VK_FULL_SCREEN_EXCLUSIVE_APPLICATION_CONTROLLED_EXT indicates the application will manage full-screen exclusive mode by using the flink:vkAcquireFullScreenExclusiveModeEXT and flink:vkReleaseFullScreenExclusiveModeEXT commands. -- ifdef::VK_KHR_win32_surface[] [open,refpage='VkSurfaceFullScreenExclusiveWin32InfoEXT',desc='Structure specifying additional creation parameters specific to Win32 fullscreen exclusive mode',type='structs'] -- The sname:VkSurfaceFullScreenExclusiveWin32InfoEXT structure is defined as: include::{generated}/api/structs/VkSurfaceFullScreenExclusiveWin32InfoEXT.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:hmonitor is the Win32 code:HMONITOR handle identifying the display to create the surface with. [NOTE] .Note ==== If pname:hmonitor is invalidated (e.g. the monitor is unplugged) during the lifetime of a swapchain created with this structure, operations on that swapchain will return ename:VK_ERROR_OUT_OF_DATE_KHR. ==== [NOTE] .Note ==== It is the responsibility of the application to change the display settings of the targeted Win32 display using the appropriate platform APIs. Such changes may: alter the surface capabilities reported for the created surface. ==== .Valid Usage **** * [[VUID-VkSurfaceFullScreenExclusiveWin32InfoEXT-hmonitor-02673]] pname:hmonitor must: be a valid code:HMONITOR **** include::{generated}/validity/structs/VkSurfaceFullScreenExclusiveWin32InfoEXT.adoc[] -- endif::VK_KHR_win32_surface[] endif::VK_EXT_full_screen_exclusive[] [open,refpage='VkSurfaceCapabilities2KHR',desc='Structure describing capabilities of a surface',type='structs'] -- The sname:VkSurfaceCapabilities2KHR structure is defined as: include::{generated}/api/structs/VkSurfaceCapabilities2KHR.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:surfaceCapabilities is a slink:VkSurfaceCapabilitiesKHR structure describing the capabilities of the specified surface. ifdef::VK_GOOGLE_surfaceless_query[] If the `apiext:VK_GOOGLE_surfaceless_query` extension is enabled and slink:VkPhysicalDeviceSurfaceInfo2KHR::pname:surface in the flink:vkGetPhysicalDeviceSurfaceCapabilities2KHR call is dlink:VK_NULL_HANDLE, the values returned in pname:minImageCount, pname:maxImageCount, pname:currentExtent, and pname:currentTransform will not reflect that of any surface and will instead be as such: * pname:minImageCount and pname:maxImageCount will be [eq]#0xFFFFFFFF# * pname:currentExtent will be [eq]#(0xFFFFFFFF, 0xFFFFFFFF)# * pname:currentTransform will be ename:VK_SURFACE_TRANSFORM_INHERIT_BIT_KHR endif::VK_GOOGLE_surfaceless_query[] include::{generated}/validity/structs/VkSurfaceCapabilities2KHR.adoc[] -- ifdef::VK_KHR_surface_protected_capabilities[] [open,refpage='VkSurfaceProtectedCapabilitiesKHR',desc='Structure describing capability of a surface to be protected',type='structs'] -- An application queries if a protected slink:VkSurfaceKHR is displayable on a specific windowing system using sname:VkSurfaceProtectedCapabilitiesKHR, which can: be passed in pname:pNext parameter of sname:VkSurfaceCapabilities2KHR. The sname:VkSurfaceProtectedCapabilitiesKHR structure is defined as: include::{generated}/api/structs/VkSurfaceProtectedCapabilitiesKHR.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:supportsProtected specifies whether a protected swapchain created from slink:VkPhysicalDeviceSurfaceInfo2KHR::pname:surface for a particular windowing system can: be displayed on screen or not. If pname:supportsProtected is ename:VK_TRUE, then creation of swapchains with the ename:VK_SWAPCHAIN_CREATE_PROTECTED_BIT_KHR flag set must: be supported for pname:surface. ifdef::VK_GOOGLE_surfaceless_query[] If the `apiext:VK_GOOGLE_surfaceless_query` extension is enabled, the value returned in pname:supportsProtected will be identical for every valid surface created on this physical device, and so in the flink:vkGetPhysicalDeviceSurfaceCapabilities2KHR call, slink:VkPhysicalDeviceSurfaceInfo2KHR::pname:surface can: be dlink:VK_NULL_HANDLE. In that case, the contents of slink:VkSurfaceCapabilities2KHR::pname:surfaceCapabilities as well as any other struct chained to it will be undefined:. endif::VK_GOOGLE_surfaceless_query[] include::{generated}/validity/structs/VkSurfaceProtectedCapabilitiesKHR.adoc[] -- endif::VK_KHR_surface_protected_capabilities[] ifdef::VK_EXT_surface_maintenance1[] [open,refpage='VkSurfacePresentScalingCapabilitiesEXT',desc='Structure describing the presentation scaling capabilities of the surface',type='structs'] -- The sname:VkSurfacePresentScalingCapabilitiesEXT structure is defined as: include::{generated}/api/structs/VkSurfacePresentScalingCapabilitiesEXT.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:supportedPresentScaling is a bitmask of elink:VkPresentScalingFlagBitsEXT representing the scaling methods supported by the surface, or `0` if application-defined scaling is not supported. * pname:supportedPresentGravityX is a bitmask of elink:VkPresentGravityFlagBitsEXT representing the X-axis pixel gravity supported by the surface, or `0` if Vulkan-defined pixel gravity is not supported for the X axis. * pname:supportedPresentGravityY is a bitmask of elink:VkPresentGravityFlagBitsEXT representing the Y-axis pixel gravity supported by the surface, or `0` if Vulkan-defined pixel gravity is not supported for the Y axis. * pname:minScaledImageExtent contains the smallest valid swapchain extent for the surface on the specified device when one of the scaling methods specified in pname:supportedPresentScaling is used, or the special value [eq]#(0xFFFFFFFF, 0xFFFFFFFF)# indicating that the surface size will be determined by the extent of a swapchain targeting the surface. The pname:width and pname:height of the extent will each be smaller than or equal to the corresponding pname:width and pname:height of slink:VkSurfaceCapabilitiesKHR::pname:minImageExtent. * pname:maxScaledImageExtent contains the largest valid swapchain extent for the surface on the specified device when one of the scaling methods specified in pname:supportedPresentScaling is used, or the special value described above for pname:minScaledImageExtent. The pname:width and pname:height of the extent will each be greater than or equal to the corresponding pname:width and pname:height of slink:VkSurfaceCapabilitiesKHR::pname:maxImageExtent. ifdef::VK_EXT_swapchain_maintenance1[] Before creating a swapchain whose scaling mode can: be specified through the use of slink:VkSwapchainPresentScalingCreateInfoEXT, obtain the set of supported scaling modes by including a slink:VkSurfacePresentModeEXT structure in the pname:pNext chain of slink:VkPhysicalDeviceSurfaceInfo2KHR when calling flink:vkGetPhysicalDeviceSurfaceCapabilities2KHR. The implementation must: return the same values in sname:VkSurfacePresentScalingCapabilitiesEXT for any of the compatible present modes as obtained through slink:VkSurfacePresentModeCompatibilityEXT. endif::VK_EXT_swapchain_maintenance1[] include::{generated}/validity/structs/VkSurfacePresentScalingCapabilitiesEXT.adoc[] -- [open,refpage='VkPresentScalingFlagBitsEXT',desc='Bitmask specifying presentation scaling methods',type='enums'] -- Bits which may: be set in slink:VkSurfacePresentScalingCapabilitiesEXT::pname:supportedPresentScaling, specifying scaling modes supported by the surface, are: include::{generated}/api/enums/VkPresentScalingFlagBitsEXT.adoc[] * ename:VK_PRESENT_SCALING_ONE_TO_ONE_BIT_EXT specifies that no scaling occurs, and pixels in the swapchain image are mapped to one and only one pixel in the surface. The mapping between pixels is defined by the chosen presentation gravity. * ename:VK_PRESENT_SCALING_ASPECT_RATIO_STRETCH_BIT_EXT specifies that the swapchain image will be minified or magnified such that at least one of the resulting width or height is equal to the corresponding surface dimension, and the other resulting dimension is less than or equal to the corresponding surface dimension, with the aspect ratio of the resulting image being identical to that of the original swapchain image. * ename:VK_PRESENT_SCALING_STRETCH_BIT_EXT specifies that the swapchain image will be minified or magnified such that the resulting image dimensions are equal to those of the surface. -- [open,refpage='VkPresentScalingFlagsEXT',desc='Bitmask of VkPresentScalingFlagBitsEXT',type='flags'] -- include::{generated}/api/flags/VkPresentScalingFlagsEXT.adoc[] tname:VkPresentScalingFlagsEXT is a bitmask type for setting a mask of zero or more elink:VkPresentScalingFlagBitsEXT. -- [open,refpage='VkPresentGravityFlagBitsEXT',desc='Bitmask specifying presentation pixel gravity on either the x or y axis',type='enums'] -- Bits which may: be set in the slink:VkSurfacePresentScalingCapabilitiesEXT::pname:supportedPresentGravityX or pname:supportedPresentGravityY fields, specifying the gravity of presented pixels supported by the surface, are: include::{generated}/api/enums/VkPresentGravityFlagBitsEXT.adoc[] * ename:VK_PRESENT_GRAVITY_MIN_BIT_EXT means that the pixels will gravitate towards the top or left side of the surface. * ename:VK_PRESENT_GRAVITY_MAX_BIT_EXT means that the pixels will gravitate towards the bottom or right side of the surface. * ename:VK_PRESENT_GRAVITY_CENTERED_BIT_EXT means that the pixels will be centered in the surface. If the value in slink:VkSurfaceCapabilitiesKHR::pname:currentTransform is not ename:VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR, it is implementation-defined whether the gravity configuration applies to the presented image before or after transformation. -- [open,refpage='VkPresentGravityFlagsEXT',desc='Bitmask of VkPresentGravityFlagBitsEXT',type='flags'] -- include::{generated}/api/flags/VkPresentGravityFlagsEXT.adoc[] tname:VkPresentGravityFlagsEXT is a bitmask type for setting a mask of zero or more elink:VkPresentGravityFlagBitsEXT. -- [open,refpage='VkSurfacePresentModeEXT',desc='Structure describing present mode of a surface',type='structs'] -- The sname:VkSurfacePresentModeEXT structure is defined as: include::{generated}/api/structs/VkSurfacePresentModeEXT.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:presentMode is the presentation mode the swapchain will use. If the sname:VkSurfacePresentModeEXT structure is included in the pname:pNext chain of slink:VkPhysicalDeviceSurfaceInfo2KHR, the values returned in slink:VkSurfaceCapabilitiesKHR::pname:minImageCount, slink:VkSurfaceCapabilitiesKHR::pname:maxImageCount, slink:VkSurfacePresentScalingCapabilitiesEXT::pname:minScaledImageExtent, and slink:VkSurfacePresentScalingCapabilitiesEXT::pname:maxScaledImageExtent are valid only for the specified pname:presentMode. ifdef::VK_KHR_shared_presentable_image[] If pname:presentMode is ename:VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR or ename:VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR, the per-present mode image counts must: both be one. endif::VK_KHR_shared_presentable_image[] The per-present mode image counts may: be less-than or greater-than the image counts returned when sname:VkSurfacePresentModeEXT is not provided. [NOTE] .Note ==== If slink:VkSwapchainPresentModesCreateInfoEXT is provided to swapchain creation, the requirements for forward progress may be less strict. For example, a FIFO swapchain might only require 2 images to guarantee forward progress, but a MAILBOX one might require 4. Without the per-present image counts, such an implementation would have to return 4 in slink:VkSurfaceCapabilitiesKHR::pname:minImageCount, which pessimizes FIFO. Conversely, an implementation may return a low number for minImageCount, but internally bump the image count when application queries flink:vkGetSwapchainImagesKHR, which can surprise applications, and is not discoverable until swapchain creation. Using sname:VkSurfacePresentModeEXT and slink:VkSwapchainPresentModesCreateInfoEXT together effectively removes this problem. slink:VkSwapchainPresentModesCreateInfoEXT is required for the specification to be backwards compatible with applications that do not know about, or make use of this feature. ==== .Valid Usage **** * [[VUID-VkSurfacePresentModeEXT-presentMode-07780]] pname:presentMode must: be a value reported by flink:vkGetPhysicalDeviceSurfacePresentModesKHR for the specified surface. **** include::{generated}/validity/structs/VkSurfacePresentModeEXT.adoc[] -- [open,refpage='VkSurfacePresentModeCompatibilityEXT',desc='Structure describing the subset of compatible presentation modes for the purposes of switching without swapchain recreation',type='structs'] -- The sname:VkSurfacePresentModeCompatibilityEXT structure is defined as: include::{generated}/api/structs/VkSurfacePresentModeCompatibilityEXT.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:presentModeCount is an integer related to the number of present modes available or queried, as described below. * pname:pPresentModes is a pointer to an array of elink:VkPresentModeKHR in which present modes compatible with a given present mode are returned. If pname:pPresentModes is `NULL`, then the number of present modes that are compatible with the one specified in slink:VkSurfacePresentModeEXT is returned in pname:presentModeCount. Otherwise, pname:presentModeCount must be set by the user to the number of elements in the pname:pPresentModes array, and on return the variable is overwritten with the number of values actually written to pname:pPresentModes. If the value of pname:presentModeCount is less than the number of compatible present modes that are supported, at most pname:presentModeCount values will be written to pname:pPresentModes. The implementation must: include the present mode passed to slink:VkSurfacePresentModeEXT in pname:pPresentModes, unless pname:presentModeCount is zero. ifdef::VK_EXT_swapchain_maintenance1[] Before creating a swapchain whose present modes can: be modified through the use of slink:VkSwapchainPresentModesCreateInfoEXT, obtain the set of present modes compatible with a given initial present mode by including a slink:VkSurfacePresentModeEXT structure in the pname:pNext chain of slink:VkPhysicalDeviceSurfaceInfo2KHR when calling flink:vkGetPhysicalDeviceSurfaceCapabilities2KHR. endif::VK_EXT_swapchain_maintenance1[] include::{generated}/validity/structs/VkSurfacePresentModeCompatibilityEXT.adoc[] -- endif::VK_EXT_surface_maintenance1[] ifdef::VK_KHR_shared_presentable_image[] [open,refpage='VkSharedPresentSurfaceCapabilitiesKHR',desc='Structure describing capabilities of a surface for shared presentation',type='structs'] -- The sname:VkSharedPresentSurfaceCapabilitiesKHR structure is defined as: include::{generated}/api/structs/VkSharedPresentSurfaceCapabilitiesKHR.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:sharedPresentSupportedUsageFlags is a bitmask of elink:VkImageUsageFlagBits representing the ways the application can: use the shared presentable image from a swapchain created with elink:VkPresentModeKHR set to ename:VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR or ename:VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR for the surface on the specified device. ename:VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT must: be included in the set but implementations may: support additional usages. include::{generated}/validity/structs/VkSharedPresentSurfaceCapabilitiesKHR.adoc[] -- endif::VK_KHR_shared_presentable_image[] ifdef::VK_AMD_display_native_hdr[] [open,refpage='VkDisplayNativeHdrSurfaceCapabilitiesAMD',desc='Structure describing display native HDR specific capabilities of a surface',type='structs'] -- The sname:VkDisplayNativeHdrSurfaceCapabilitiesAMD structure is defined as: include::{generated}/api/structs/VkDisplayNativeHdrSurfaceCapabilitiesAMD.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:localDimmingSupport specifies whether the surface supports local dimming. If this is ename:VK_TRUE, slink:VkSwapchainDisplayNativeHdrCreateInfoAMD can: be used to explicitly enable or disable local dimming for the surface. Local dimming may also be overridden by flink:vkSetLocalDimmingAMD during the lifetime of the swapchain. include::{generated}/validity/structs/VkDisplayNativeHdrSurfaceCapabilitiesAMD.adoc[] -- endif::VK_AMD_display_native_hdr[] ifdef::VK_EXT_full_screen_exclusive[] [open,refpage='VkSurfaceCapabilitiesFullScreenExclusiveEXT',desc='Structure describing full screen exclusive capabilities of a surface',type='structs'] -- The sname:VkSurfaceCapabilitiesFullScreenExclusiveEXT structure is defined as: include::{generated}/api/structs/VkSurfaceCapabilitiesFullScreenExclusiveEXT.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:fullScreenExclusiveControlSupported is a boolean describing whether the surface is able to make use of exclusive full-screen access. This structure can: be included in the pname:pNext chain of slink:VkSurfaceCapabilities2KHR to determine support for exclusive full-screen access. If pname:fullScreenExclusiveSupported is ename:VK_FALSE, it indicates that exclusive full-screen access is not obtainable for this surface. Applications must: not attempt to create swapchains with ename:VK_FULL_SCREEN_EXCLUSIVE_APPLICATION_CONTROLLED_EXT set if pname:fullScreenExclusiveSupported is ename:VK_FALSE. include::{generated}/validity/structs/VkSurfaceCapabilitiesFullScreenExclusiveEXT.adoc[] -- endif::VK_EXT_full_screen_exclusive[] ifdef::VK_NV_present_barrier[] [open,refpage='VkSurfaceCapabilitiesPresentBarrierNV',desc='Structure describing present barrier capabilities of a surface',type='structs'] -- The sname:VkSurfaceCapabilitiesPresentBarrierNV structure is defined as: include::{generated}/api/structs/VkSurfaceCapabilitiesPresentBarrierNV.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:presentBarrierSupported is a boolean describing whether the surface is able to make use of the present barrier feature. This structure can: be included in the pname:pNext chain of slink:VkSurfaceCapabilities2KHR to determine support for present barrier access. If pname:presentBarrierSupported is ename:VK_FALSE, it indicates that the present barrier feature is not obtainable for this surface. include::{generated}/validity/structs/VkSurfaceCapabilitiesPresentBarrierNV.adoc[] -- endif::VK_NV_present_barrier[] endif::VK_KHR_get_surface_capabilities2[] ifdef::VK_EXT_display_surface_counter[] include::{chapters}/VK_EXT_display_surface_counter/surface_capabilities.adoc[] endif::VK_EXT_display_surface_counter[] [open,refpage='VkSurfaceTransformFlagBitsKHR',desc='Presentation transforms supported on a device',type='enums'] -- Bits which may: be set in slink:VkSurfaceCapabilitiesKHR::pname:supportedTransforms indicating the presentation transforms supported for the surface on the specified device, and possible values of slink:VkSurfaceCapabilitiesKHR::pname:currentTransform indicating the surface's current transform relative to the presentation engine's natural orientation, are: include::{generated}/api/enums/VkSurfaceTransformFlagBitsKHR.adoc[] * ename:VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR specifies that image content is presented without being transformed. * ename:VK_SURFACE_TRANSFORM_ROTATE_90_BIT_KHR specifies that image content is rotated 90 degrees clockwise. * ename:VK_SURFACE_TRANSFORM_ROTATE_180_BIT_KHR specifies that image content is rotated 180 degrees clockwise. * ename:VK_SURFACE_TRANSFORM_ROTATE_270_BIT_KHR specifies that image content is rotated 270 degrees clockwise. * ename:VK_SURFACE_TRANSFORM_HORIZONTAL_MIRROR_BIT_KHR specifies that image content is mirrored horizontally. * ename:VK_SURFACE_TRANSFORM_HORIZONTAL_MIRROR_ROTATE_90_BIT_KHR specifies that image content is mirrored horizontally, then rotated 90 degrees clockwise. * ename:VK_SURFACE_TRANSFORM_HORIZONTAL_MIRROR_ROTATE_180_BIT_KHR specifies that image content is mirrored horizontally, then rotated 180 degrees clockwise. * ename:VK_SURFACE_TRANSFORM_HORIZONTAL_MIRROR_ROTATE_270_BIT_KHR specifies that image content is mirrored horizontally, then rotated 270 degrees clockwise. * ename:VK_SURFACE_TRANSFORM_INHERIT_BIT_KHR specifies that the presentation transform is not specified, and is instead determined by platform-specific considerations and mechanisms outside Vulkan. -- [open,refpage='VkSurfaceTransformFlagsKHR',desc='Bitmask of VkSurfaceTransformFlagBitsKHR',type='flags'] -- include::{generated}/api/flags/VkSurfaceTransformFlagsKHR.adoc[] tname:VkSurfaceTransformFlagsKHR is a bitmask type for setting a mask of zero or more elink:VkSurfaceTransformFlagBitsKHR. -- [open,refpage='VkCompositeAlphaFlagBitsKHR',desc='Alpha compositing modes supported on a device',type='enums'] -- The pname:supportedCompositeAlpha member is of type elink:VkCompositeAlphaFlagBitsKHR, containing the following values: include::{generated}/api/enums/VkCompositeAlphaFlagBitsKHR.adoc[] These values are described as follows: * ename:VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR: The alpha component, if it exists, of the images is ignored in the compositing process. Instead, the image is treated as if it has a constant alpha of 1.0. * ename:VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR: The alpha component, if it exists, of the images is respected in the compositing process. The non-alpha components of the image are expected to already be multiplied by the alpha component by the application. * ename:VK_COMPOSITE_ALPHA_POST_MULTIPLIED_BIT_KHR: The alpha component, if it exists, of the images is respected in the compositing process. The non-alpha components of the image are not expected to already be multiplied by the alpha component by the application; instead, the compositor will multiply the non-alpha components of the image by the alpha component during compositing. * ename:VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR: The way in which the presentation engine treats the alpha component in the images is unknown to the Vulkan API. Instead, the application is responsible for setting the composite alpha blending mode using native window system commands. If the application does not set the blending mode using native window system commands, then a platform-specific default will be used. -- [open,refpage='VkCompositeAlphaFlagsKHR',desc='Bitmask of VkCompositeAlphaFlagBitsKHR',type='flags'] -- include::{generated}/api/flags/VkCompositeAlphaFlagsKHR.adoc[] tname:VkCompositeAlphaFlagsKHR is a bitmask type for setting a mask of zero or more elink:VkCompositeAlphaFlagBitsKHR. -- === Surface Format Support [open,refpage='vkGetPhysicalDeviceSurfaceFormatsKHR',desc='Query color formats supported by surface',type='protos'] -- :refpage: vkGetPhysicalDeviceSurfaceFormatsKHR To query the supported swapchain format-color space pairs for a surface, call: include::{generated}/api/protos/vkGetPhysicalDeviceSurfaceFormatsKHR.adoc[] * pname:physicalDevice is the physical device that will be associated with the swapchain to be created, as described for flink:vkCreateSwapchainKHR. * pname:surface is the surface that will be associated with the swapchain. * pname:pSurfaceFormatCount is a pointer to an integer related to the number of format pairs available or queried, as described below. * pname:pSurfaceFormats is either `NULL` or a pointer to an array of sname:VkSurfaceFormatKHR structures. If pname:pSurfaceFormats is `NULL`, then the number of format pairs supported for the given pname:surface is returned in pname:pSurfaceFormatCount. Otherwise, pname:pSurfaceFormatCount must: point to a variable set by the user to the number of elements in the pname:pSurfaceFormats array, and on return the variable is overwritten with the number of structures actually written to pname:pSurfaceFormats. If the value of pname:pSurfaceFormatCount is less than the number of format pairs supported, at most pname:pSurfaceFormatCount structures will be written, and ename:VK_INCOMPLETE will be returned instead of ename:VK_SUCCESS, to indicate that not all the available format pairs were returned. The number of format pairs supported must: be greater than or equal to 1. pname:pSurfaceFormats must: not contain an entry whose value for pname:format is ename:VK_FORMAT_UNDEFINED. If pname:pSurfaceFormats includes an entry whose value for pname:colorSpace is ename:VK_COLOR_SPACE_SRGB_NONLINEAR_KHR and whose value for pname:format is a UNORM (or SRGB) format and the corresponding SRGB (or UNORM) format is a color renderable format for ename:VK_IMAGE_TILING_OPTIMAL, then pname:pSurfaceFormats must: also contain an entry with the same value for pname:colorSpace and pname:format equal to the corresponding SRGB (or UNORM) format. ifdef::VK_GOOGLE_surfaceless_query[] If the `apiext:VK_GOOGLE_surfaceless_query` extension is enabled, the values returned in pname:pSurfaceFormats will be identical for every valid surface created on this physical device, and so pname:surface can: be dlink:VK_NULL_HANDLE. endif::VK_GOOGLE_surfaceless_query[] .Valid Usage **** include::{chapters}/commonvalidity/surface_physical_device_surfaceless_common.adoc[] **** include::{generated}/validity/protos/vkGetPhysicalDeviceSurfaceFormatsKHR.adoc[] -- [open,refpage='VkSurfaceFormatKHR',desc='Structure describing a supported swapchain format-color space pair',type='structs'] -- The sname:VkSurfaceFormatKHR structure is defined as: include::{generated}/api/structs/VkSurfaceFormatKHR.adoc[] * pname:format is a elink:VkFormat that is compatible with the specified surface. * pname:colorSpace is a presentation elink:VkColorSpaceKHR that is compatible with the surface. include::{generated}/validity/structs/VkSurfaceFormatKHR.adoc[] -- ifdef::VK_KHR_get_surface_capabilities2[] [open,refpage='vkGetPhysicalDeviceSurfaceFormats2KHR',desc='Query color formats supported by surface',type='protos'] -- :refpage: vkGetPhysicalDeviceSurfaceFormats2KHR To query the supported swapchain format tuples for a surface, call: include::{generated}/api/protos/vkGetPhysicalDeviceSurfaceFormats2KHR.adoc[] * pname:physicalDevice is the physical device that will be associated with the swapchain to be created, as described for flink:vkCreateSwapchainKHR. * pname:pSurfaceInfo is a pointer to a slink:VkPhysicalDeviceSurfaceInfo2KHR structure describing the surface and other fixed parameters that would be consumed by flink:vkCreateSwapchainKHR. * pname:pSurfaceFormatCount is a pointer to an integer related to the number of format tuples available or queried, as described below. * pname:pSurfaceFormats is either `NULL` or a pointer to an array of slink:VkSurfaceFormat2KHR structures. flink:vkGetPhysicalDeviceSurfaceFormats2KHR behaves similarly to flink:vkGetPhysicalDeviceSurfaceFormatsKHR, with the ability to be extended via pname:pNext chains. If pname:pSurfaceFormats is `NULL`, then the number of format tuples supported for the given pname:surface is returned in pname:pSurfaceFormatCount. Otherwise, pname:pSurfaceFormatCount must: point to a variable set by the user to the number of elements in the pname:pSurfaceFormats array, and on return the variable is overwritten with the number of structures actually written to pname:pSurfaceFormats. If the value of pname:pSurfaceFormatCount is less than the number of format tuples supported, at most pname:pSurfaceFormatCount structures will be written, and ename:VK_INCOMPLETE will be returned instead of ename:VK_SUCCESS, to indicate that not all the available values were returned. .Valid Usage **** include::{chapters}/commonvalidity/surface_info_physical_device_surfaceless_common.adoc[] **** include::{generated}/validity/protos/vkGetPhysicalDeviceSurfaceFormats2KHR.adoc[] -- [open,refpage='VkSurfaceFormat2KHR',desc='Structure describing a supported swapchain format tuple',type='structs'] -- The sname:VkSurfaceFormat2KHR structure is defined as: include::{generated}/api/structs/VkSurfaceFormat2KHR.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:surfaceFormat is a slink:VkSurfaceFormatKHR structure describing a format-color space pair that is compatible with the specified surface. ifdef::VK_EXT_image_compression_control[] .Valid Usage **** ifndef::VK_EXT_image_compression_control_swapchain[] * [[VUID-VkSurfaceFormat2KHR-pNext-06749]] The pname:pNext chain must: not include an slink:VkImageCompressionPropertiesEXT structure endif::VK_EXT_image_compression_control_swapchain[] ifdef::VK_EXT_image_compression_control_swapchain[] * [[VUID-VkSurfaceFormat2KHR-pNext-06750]] If the <> feature is not enabled, the pname:pNext chain must: not include an slink:VkImageCompressionPropertiesEXT structure endif::VK_EXT_image_compression_control_swapchain[] **** endif::VK_EXT_image_compression_control[] include::{generated}/validity/structs/VkSurfaceFormat2KHR.adoc[] -- ifdef::VK_EXT_image_compression_control[] ifdef::VK_EXT_image_compression_control_swapchain[] If the <> feature is supported and a slink:VkImageCompressionPropertiesEXT structure is included in the pname:pNext chain of this structure, then it will be filled with the compression properties that are supported for the pname:surfaceFormat. endif::VK_EXT_image_compression_control_swapchain[] endif::VK_EXT_image_compression_control[] endif::VK_KHR_get_surface_capabilities2[] While the pname:format of a presentable image refers to the encoding of each pixel, the pname:colorSpace determines how the presentation engine interprets the pixel values. A color space in this document refers to a specific color space (defined by the chromaticities of its primaries and a white point in CIE Lab), and a transfer function that is applied before storing or transmitting color data in the given color space. [open,refpage='VkColorSpaceKHR',desc='Supported color space of the presentation engine',type='enums'] -- Possible values of slink:VkSurfaceFormatKHR::pname:colorSpace, specifying supported color spaces of a presentation engine, are: include::{generated}/api/enums/VkColorSpaceKHR.adoc[] * ename:VK_COLOR_SPACE_SRGB_NONLINEAR_KHR specifies support for the sRGB color space. ifdef::VK_EXT_swapchain_colorspace[] * ename:VK_COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT specifies support for the Display-P3 color space to be displayed using an sRGB-like EOTF (defined below). * ename:VK_COLOR_SPACE_EXTENDED_SRGB_LINEAR_EXT specifies support for the extended sRGB color space to be displayed using a linear EOTF. * ename:VK_COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT specifies support for the extended sRGB color space to be displayed using an sRGB EOTF. * ename:VK_COLOR_SPACE_DISPLAY_P3_LINEAR_EXT specifies support for the Display-P3 color space to be displayed using a linear EOTF. * ename:VK_COLOR_SPACE_DCI_P3_NONLINEAR_EXT specifies support for the DCI-P3 color space to be displayed using the DCI-P3 EOTF. Note that values in such an image are interpreted as XYZ encoded color data by the presentation engine. * ename:VK_COLOR_SPACE_BT709_LINEAR_EXT specifies support for the BT709 color space to be displayed using a linear EOTF. * ename:VK_COLOR_SPACE_BT709_NONLINEAR_EXT specifies support for the BT709 color space to be displayed using the SMPTE 170M EOTF. * ename:VK_COLOR_SPACE_BT2020_LINEAR_EXT specifies support for the BT2020 color space to be displayed using a linear EOTF. * ename:VK_COLOR_SPACE_HDR10_ST2084_EXT specifies support for the HDR10 (BT2020 color) space to be displayed using the SMPTE ST2084 Perceptual Quantizer (PQ) EOTF. * ename:VK_COLOR_SPACE_DOLBYVISION_EXT specifies support for the Dolby Vision (BT2020 color space), proprietary encoding, to be displayed using the SMPTE ST2084 EOTF. * ename:VK_COLOR_SPACE_HDR10_HLG_EXT specifies support for the HDR10 (BT2020 color space) to be displayed using the Hybrid Log Gamma (HLG) EOTF. * ename:VK_COLOR_SPACE_ADOBERGB_LINEAR_EXT specifies support for the AdobeRGB color space to be displayed using a linear EOTF. * ename:VK_COLOR_SPACE_ADOBERGB_NONLINEAR_EXT specifies support for the AdobeRGB color space to be displayed using the Gamma 2.2 EOTF. * ename:VK_COLOR_SPACE_PASS_THROUGH_EXT specifies that color components are used "`as is`". This is intended to allow applications to supply data for color spaces not described here. ifdef::VK_AMD_display_native_hdr[] * ename:VK_COLOR_SPACE_DISPLAY_NATIVE_AMD specifies support for the display's native color space. This matches the color space expectations of AMD's FreeSync2 standard, for displays supporting it. endif::VK_AMD_display_native_hdr[] [NOTE] .Note ==== In the initial release of the `apiext:VK_KHR_surface` and `apiext:VK_KHR_swapchain` extensions, the token ename:VK_COLORSPACE_SRGB_NONLINEAR_KHR was used. Starting in the 2016-05-13 updates to the extension branches, matching release 1.0.13 of the core API specification, ename:VK_COLOR_SPACE_SRGB_NONLINEAR_KHR is used instead for consistency with Vulkan naming rules. The older enum is still available for backwards compatibility. ==== [NOTE] .Note ==== In older versions of this extension ename:VK_COLOR_SPACE_DISPLAY_P3_LINEAR_EXT was misnamed ename:VK_COLOR_SPACE_DCI_P3_LINEAR_EXT. This has been updated to indicate that it uses RGB color encoding, not XYZ. The old name is deprecated but is maintained for backwards compatibility. ==== [NOTE] .Note ==== For a traditional "`Linear`" or non-gamma transfer function color space use ename:VK_COLOR_SPACE_PASS_THROUGH_EXT. ==== The color components of non-linear color space swap chain images must: have had the appropriate transfer function applied. The color space selected for the swap chain image will not affect the processing of data written into the image by the implementation. Vulkan requires that all implementations support the sRGB transfer function by use of an SRGB pixel format. Other transfer functions, such as SMPTE 170M or SMPTE2084, can: be performed by the application shader. This extension defines enums for elink:VkColorSpaceKHR that correspond to the following color spaces: [[VK_EXT_swapchain_colorspace-table]] .Color Spaces and Attributes [options="header"] |==== | Name | Red Primary | Green Primary | Blue Primary | White-point | Transfer function | DCI-P3 | 1.000, 0.000 | 0.000, 1.000 | 0.000, 0.000 | 0.3333, 0.3333 | DCI P3 | Display-P3 | 0.680, 0.320 | 0.265, 0.690 | 0.150, 0.060 | 0.3127, 0.3290 (D65) | Display-P3 | BT709 | 0.640, 0.330 | 0.300, 0.600 | 0.150, 0.060 | 0.3127, 0.3290 (D65) | ITU (SMPTE 170M) | sRGB | 0.640, 0.330 | 0.300, 0.600 | 0.150, 0.060 | 0.3127, 0.3290 (D65) | sRGB | extended sRGB | 0.640, 0.330 | 0.300, 0.600 | 0.150, 0.060 | 0.3127, 0.3290 (D65) | extended sRGB | HDR10_ST2084 | 0.708, 0.292 | 0.170, 0.797 | 0.131, 0.046 | 0.3127, 0.3290 (D65) | ST2084 PQ | DOLBYVISION | 0.708, 0.292 | 0.170, 0.797 | 0.131, 0.046 | 0.3127, 0.3290 (D65) | ST2084 PQ | HDR10_HLG | 0.708, 0.292 | 0.170, 0.797 | 0.131, 0.046 | 0.3127, 0.3290 (D65) | HLG | AdobeRGB | 0.640, 0.330 | 0.210, 0.710 | 0.150, 0.060 | 0.3127, 0.3290 (D65) | AdobeRGB |==== The transfer functions are described in the "`Transfer Functions`" chapter of the <>. Except Display-P3 OETF, which is: [latexmath] +++++++++++++++++++ \begin{aligned} E & = \begin{cases} 1.055 \times L^{1 \over 2.4} - 0.055 & \text{for}\ 0.0030186 \leq L \leq 1 \\ 12.92 \times L & \text{for}\ 0 \leq L < 0.0030186 \end{cases} \end{aligned} +++++++++++++++++++ where [eq]#L# is the linear value of a color component and [eq]#E# is the encoded value (as stored in the image in memory). [NOTE] .Note ==== For most uses, the sRGB OETF is equivalent. ==== endif::VK_EXT_swapchain_colorspace[] -- === Surface Presentation Mode Support [open,refpage='vkGetPhysicalDeviceSurfacePresentModesKHR',desc='Query supported presentation modes',type='protos'] -- :refpage: vkGetPhysicalDeviceSurfacePresentModesKHR To query the supported presentation modes for a surface, call: include::{generated}/api/protos/vkGetPhysicalDeviceSurfacePresentModesKHR.adoc[] * pname:physicalDevice is the physical device that will be associated with the swapchain to be created, as described for flink:vkCreateSwapchainKHR. * pname:surface is the surface that will be associated with the swapchain. * pname:pPresentModeCount is a pointer to an integer related to the number of presentation modes available or queried, as described below. * pname:pPresentModes is either `NULL` or a pointer to an array of elink:VkPresentModeKHR values, indicating the supported presentation modes. If pname:pPresentModes is `NULL`, then the number of presentation modes supported for the given pname:surface is returned in pname:pPresentModeCount. Otherwise, pname:pPresentModeCount must: point to a variable set by the user to the number of elements in the pname:pPresentModes array, and on return the variable is overwritten with the number of values actually written to pname:pPresentModes. If the value of pname:pPresentModeCount is less than the number of presentation modes supported, at most pname:pPresentModeCount values will be written, and ename:VK_INCOMPLETE will be returned instead of ename:VK_SUCCESS, to indicate that not all the available modes were returned. ifdef::VK_GOOGLE_surfaceless_query[] If the `apiext:VK_GOOGLE_surfaceless_query` extension is enabled and pname:surface is dlink:VK_NULL_HANDLE, the values returned in pname:pPresentModes will only indicate support for ifndef::VK_KHR_shared_presentable_image[] ename:VK_PRESENT_MODE_FIFO_KHR. endif::VK_KHR_shared_presentable_image[] ifdef::VK_KHR_shared_presentable_image[] ename:VK_PRESENT_MODE_FIFO_KHR, ename:VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR, and ename:VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR. endif::VK_KHR_shared_presentable_image[] To query support for any other present mode, a valid handle must: be provided in pname:surface. endif::VK_GOOGLE_surfaceless_query[] .Valid Usage **** include::{chapters}/commonvalidity/surface_physical_device_surfaceless_common.adoc[] **** include::{generated}/validity/protos/vkGetPhysicalDeviceSurfacePresentModesKHR.adoc[] -- ifdef::VK_EXT_full_screen_exclusive[] [open,refpage='vkGetPhysicalDeviceSurfacePresentModes2EXT',desc='Query supported presentation modes',type='protos'] -- :refpage: vkGetPhysicalDeviceSurfacePresentModes2EXT Alternatively, to query the supported presentation modes for a surface combined with select other fixed swapchain creation parameters, call: include::{generated}/api/protos/vkGetPhysicalDeviceSurfacePresentModes2EXT.adoc[] * pname:physicalDevice is the physical device that will be associated with the swapchain to be created, as described for flink:vkCreateSwapchainKHR. * pname:pSurfaceInfo is a pointer to a slink:VkPhysicalDeviceSurfaceInfo2KHR structure describing the surface and other fixed parameters that would be consumed by flink:vkCreateSwapchainKHR. * pname:pPresentModeCount is a pointer to an integer related to the number of presentation modes available or queried, as described below. * pname:pPresentModes is either `NULL` or a pointer to an array of elink:VkPresentModeKHR values, indicating the supported presentation modes. fname:vkGetPhysicalDeviceSurfacePresentModes2EXT behaves similarly to flink:vkGetPhysicalDeviceSurfacePresentModesKHR, with the ability to specify extended inputs via chained input structures. .Valid Usage **** include::{chapters}/commonvalidity/surface_info_physical_device_surfaceless_common.adoc[] **** include::{generated}/validity/protos/vkGetPhysicalDeviceSurfacePresentModes2EXT.adoc[] -- endif::VK_EXT_full_screen_exclusive[] [open,refpage='VkPresentModeKHR',desc='Presentation mode supported for a surface',type='enums'] -- Possible values of elements of the flink:vkGetPhysicalDeviceSurfacePresentModesKHR::pname:pPresentModes array, indicating the supported presentation modes for a surface, are: include::{generated}/api/enums/VkPresentModeKHR.adoc[] * ename:VK_PRESENT_MODE_IMMEDIATE_KHR specifies that the presentation engine does not wait for a vertical blanking period to update the current image, meaning this mode may: result in visible tearing. No internal queuing of presentation requests is needed, as the requests are applied immediately. * ename:VK_PRESENT_MODE_MAILBOX_KHR specifies that the presentation engine waits for the next vertical blanking period to update the current image. Tearing cannot: be observed. An internal single-entry queue is used to hold pending presentation requests. If the queue is full when a new presentation request is received, the new request replaces the existing entry, and any images associated with the prior entry become available for re-use by the application. One request is removed from the queue and processed during each vertical blanking period in which the queue is non-empty. * ename:VK_PRESENT_MODE_FIFO_KHR specifies that the presentation engine waits for the next vertical blanking period to update the current image. Tearing cannot: be observed. An internal queue is used to hold pending presentation requests. New requests are appended to the end of the queue, and one request is removed from the beginning of the queue and processed during each vertical blanking period in which the queue is non-empty. This is the only value of pname:presentMode that is required: to be supported. * ename:VK_PRESENT_MODE_FIFO_RELAXED_KHR specifies that the presentation engine generally waits for the next vertical blanking period to update the current image. If a vertical blanking period has already passed since the last update of the current image then the presentation engine does not wait for another vertical blanking period for the update, meaning this mode may: result in visible tearing in this case. This mode is useful for reducing visual stutter with an application that will mostly present a new image before the next vertical blanking period, but may occasionally be late, and present a new image just after the next vertical blanking period. An internal queue is used to hold pending presentation requests. New requests are appended to the end of the queue, and one request is removed from the beginning of the queue and processed during or after each vertical blanking period in which the queue is non-empty. ifdef::VK_KHR_shared_presentable_image[] * ename:VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR specifies that the presentation engine and application have concurrent access to a single image, which is referred to as a _shared presentable image_. The presentation engine is only required to update the current image after a new presentation request is received. Therefore the application must: make a presentation request whenever an update is required. However, the presentation engine may: update the current image at any point, meaning this mode may: result in visible tearing. * ename:VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR specifies that the presentation engine and application have concurrent access to a single image, which is referred to as a _shared presentable image_. The presentation engine periodically updates the current image on its regular refresh cycle. The application is only required to make one initial presentation request, after which the presentation engine must: update the current image without any need for further presentation requests. The application can: indicate the image contents have been updated by making a presentation request, but this does not guarantee the timing of when it will be updated. This mode may: result in visible tearing if rendering to the image is not timed correctly. The supported elink:VkImageUsageFlagBits of the presentable images of a swapchain created for a surface may: differ depending on the presentation mode, and can be determined as per the table below: .Presentable image usage queries [width="100%",cols="<50%,<50%",options="header"] |==== | Presentation mode | Image usage flags | ename:VK_PRESENT_MODE_IMMEDIATE_KHR | slink:VkSurfaceCapabilitiesKHR::pname:supportedUsageFlags | ename:VK_PRESENT_MODE_MAILBOX_KHR | slink:VkSurfaceCapabilitiesKHR::pname:supportedUsageFlags | ename:VK_PRESENT_MODE_FIFO_KHR | slink:VkSurfaceCapabilitiesKHR::pname:supportedUsageFlags | ename:VK_PRESENT_MODE_FIFO_RELAXED_KHR | slink:VkSurfaceCapabilitiesKHR::pname:supportedUsageFlags | ename:VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR | slink:VkSharedPresentSurfaceCapabilitiesKHR::pname:sharedPresentSupportedUsageFlags | ename:VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR | slink:VkSharedPresentSurfaceCapabilitiesKHR::pname:sharedPresentSupportedUsageFlags |==== endif::VK_KHR_shared_presentable_image[] [NOTE] .Note ==== For reference, the mode indicated by ename:VK_PRESENT_MODE_FIFO_KHR is equivalent to the behavior of {wgl|glX|egl}SwapBuffers with a swap interval of 1, while the mode indicated by ename:VK_PRESENT_MODE_FIFO_RELAXED_KHR is equivalent to the behavior of {wgl|glX}SwapBuffers with a swap interval of -1 (from the {WGL|GLX}_EXT_swap_control_tear extensions). ==== -- ifdef::VK_EXT_full_screen_exclusive[] == Full Screen Exclusive Control Swapchains created with pname:fullScreenExclusive set to ename:VK_FULL_SCREEN_EXCLUSIVE_APPLICATION_CONTROLLED_EXT must: acquire and release exclusive full-screen access explicitly, using the following commands. [open,refpage='vkAcquireFullScreenExclusiveModeEXT',desc='Acquire full-screen exclusive mode for a swapchain',type='protos'] -- To acquire exclusive full-screen access for a swapchain, call: include::{generated}/api/protos/vkAcquireFullScreenExclusiveModeEXT.adoc[] * pname:device is the device associated with pname:swapchain. * pname:swapchain is the swapchain to acquire exclusive full-screen access for. .Valid Usage **** * [[VUID-vkAcquireFullScreenExclusiveModeEXT-swapchain-02674]] pname:swapchain must: not be in the retired state * [[VUID-vkAcquireFullScreenExclusiveModeEXT-swapchain-02675]] pname:swapchain must: be a swapchain created with a slink:VkSurfaceFullScreenExclusiveInfoEXT structure, with pname:fullScreenExclusive set to ename:VK_FULL_SCREEN_EXCLUSIVE_APPLICATION_CONTROLLED_EXT * [[VUID-vkAcquireFullScreenExclusiveModeEXT-swapchain-02676]] pname:swapchain must: not currently have exclusive full-screen access **** A return value of ename:VK_SUCCESS indicates that the pname:swapchain successfully acquired exclusive full-screen access. The swapchain will retain this exclusivity until either the application releases exclusive full-screen access with flink:vkReleaseFullScreenExclusiveModeEXT, destroys the swapchain, or if any of the swapchain commands return ename:VK_ERROR_FULL_SCREEN_EXCLUSIVE_MODE_LOST_EXT indicating that the mode was lost because of platform-specific changes. If the swapchain was unable to acquire exclusive full-screen access to the display then ename:VK_ERROR_INITIALIZATION_FAILED is returned. An application can: attempt to acquire exclusive full-screen access again for the same swapchain even if this command fails, or if ename:VK_ERROR_FULL_SCREEN_EXCLUSIVE_MODE_LOST_EXT has been returned by a swapchain command. include::{generated}/validity/protos/vkAcquireFullScreenExclusiveModeEXT.adoc[] -- [open,refpage='vkReleaseFullScreenExclusiveModeEXT',desc='Release full-screen exclusive mode from a swapchain',type='protos'] -- To release exclusive full-screen access from a swapchain, call: include::{generated}/api/protos/vkReleaseFullScreenExclusiveModeEXT.adoc[] * pname:device is the device associated with pname:swapchain. * pname:swapchain is the swapchain to release exclusive full-screen access from. [NOTE] .Note ==== Applications will not be able to present to pname:swapchain after this call until exclusive full-screen access is reacquired. This is usually useful to handle when an application is minimised or otherwise intends to stop presenting for a time. ==== .Valid Usage **** * [[VUID-vkReleaseFullScreenExclusiveModeEXT-swapchain-02677]] pname:swapchain must: not be in the retired state * [[VUID-vkReleaseFullScreenExclusiveModeEXT-swapchain-02678]] pname:swapchain must: be a swapchain created with a slink:VkSurfaceFullScreenExclusiveInfoEXT structure, with pname:fullScreenExclusive set to ename:VK_FULL_SCREEN_EXCLUSIVE_APPLICATION_CONTROLLED_EXT **** -- endif::VK_EXT_full_screen_exclusive[] ifdef::VK_KHR_swapchain[] ifdef::VK_VERSION_1_1,VK_KHR_device_group[] == Device Group Queries [open,refpage='vkGetDeviceGroupPresentCapabilitiesKHR',desc='Query present capabilities from other physical devices',type='protos'] -- A logical device that represents multiple physical devices may: support presenting from images on more than one physical device, or combining images from multiple physical devices. To query these capabilities, call: include::{generated}/api/protos/vkGetDeviceGroupPresentCapabilitiesKHR.adoc[] * pname:device is the logical device. * pname:pDeviceGroupPresentCapabilities is a pointer to a slink:VkDeviceGroupPresentCapabilitiesKHR structure in which the device's capabilities are returned. include::{generated}/validity/protos/vkGetDeviceGroupPresentCapabilitiesKHR.adoc[] -- [open,refpage='VkDeviceGroupPresentCapabilitiesKHR',desc='Present capabilities from other physical devices',type='structs'] -- The sname:VkDeviceGroupPresentCapabilitiesKHR structure is defined as: include::{generated}/api/structs/VkDeviceGroupPresentCapabilitiesKHR.adoc[] * pname:sType is the type of this structure. * pname:pNext is `NULL` or a pointer to a structure extending this structure. * pname:presentMask is an array of ename:VK_MAX_DEVICE_GROUP_SIZE code:uint32_t masks, where the mask at element [eq]#i# is non-zero if physical device [eq]#i# has a presentation engine, and where bit [eq]#j# is set in element [eq]#i# if physical device [eq]#i# can: present swapchain images from physical device [eq]#j#. If element [eq]#i# is non-zero, then bit [eq]#i# must: be set. * pname:modes is a bitmask of elink:VkDeviceGroupPresentModeFlagBitsKHR indicating which device group presentation modes are supported. pname:modes always has ename:VK_DEVICE_GROUP_PRESENT_MODE_LOCAL_BIT_KHR set. The present mode flags are also used when presenting an image, in slink:VkDeviceGroupPresentInfoKHR::pname:mode. If a device group only includes a single physical device, then pname:modes must: equal ename:VK_DEVICE_GROUP_PRESENT_MODE_LOCAL_BIT_KHR. include::{generated}/validity/structs/VkDeviceGroupPresentCapabilitiesKHR.adoc[] -- [open,refpage='VkDeviceGroupPresentModeFlagBitsKHR',desc='Bitmask specifying supported device group present modes',type='enums'] -- Bits which may: be set in slink:VkDeviceGroupPresentCapabilitiesKHR::pname:modes, indicating which device group presentation modes are supported, are: include::{generated}/api/enums/VkDeviceGroupPresentModeFlagBitsKHR.adoc[] * ename:VK_DEVICE_GROUP_PRESENT_MODE_LOCAL_BIT_KHR specifies that any physical device with a presentation engine can: present its own swapchain images. * ename:VK_DEVICE_GROUP_PRESENT_MODE_REMOTE_BIT_KHR specifies that any physical device with a presentation engine can: present swapchain images from any physical device in its pname:presentMask. * ename:VK_DEVICE_GROUP_PRESENT_MODE_SUM_BIT_KHR specifies that any physical device with a presentation engine can: present the sum of swapchain images from any physical devices in its pname:presentMask. * ename:VK_DEVICE_GROUP_PRESENT_MODE_LOCAL_MULTI_DEVICE_BIT_KHR specifies that multiple physical devices with a presentation engine can: each present their own swapchain images. -- [open,refpage='VkDeviceGroupPresentModeFlagsKHR',desc='Bitmask of VkDeviceGroupPresentModeFlagBitsKHR',type='flags'] -- include::{generated}/api/flags/VkDeviceGroupPresentModeFlagsKHR.adoc[] tname:VkDeviceGroupPresentModeFlagsKHR is a bitmask type for setting a mask of zero or more elink:VkDeviceGroupPresentModeFlagBitsKHR. -- [open,refpage='vkGetDeviceGroupSurfacePresentModesKHR',desc='Query present capabilities for a surface',type='protos'] -- Some surfaces may: not be capable of using all the device group present modes. To query the supported device group present modes for a particular surface, call: include::{generated}/api/protos/vkGetDeviceGroupSurfacePresentModesKHR.adoc[] * pname:device is the logical device. * pname:surface is the surface. * pname:pModes is a pointer to a tlink:VkDeviceGroupPresentModeFlagsKHR in which the supported device group present modes for the surface are returned. The modes returned by this command are not invariant, and may: change in response to the surface being moved, resized, or occluded. These modes must: be a subset of the modes returned by flink:vkGetDeviceGroupPresentCapabilitiesKHR. .Valid Usage **** * [[VUID-vkGetDeviceGroupSurfacePresentModesKHR-surface-06212]] pname:surface must: be supported by all physical devices associated with pname:device, as reported by flink:vkGetPhysicalDeviceSurfaceSupportKHR or an equivalent platform-specific mechanism **** include::{generated}/validity/protos/vkGetDeviceGroupSurfacePresentModesKHR.adoc[] -- ifdef::VK_EXT_full_screen_exclusive[] [open,refpage='vkGetDeviceGroupSurfacePresentModes2EXT',desc='Query device group present capabilities for a surface',type='protos'] -- Alternatively, to query the supported device group presentation modes for a surface combined with select other fixed swapchain creation parameters, call: include::{generated}/api/protos/vkGetDeviceGroupSurfacePresentModes2EXT.adoc[] * pname:device is the logical device. * pname:pSurfaceInfo is a pointer to a slink:VkPhysicalDeviceSurfaceInfo2KHR structure describing the surface and other fixed parameters that would be consumed by flink:vkCreateSwapchainKHR. * pname:pModes is a pointer to a tlink:VkDeviceGroupPresentModeFlagsKHR in which the supported device group present modes for the surface are returned. fname:vkGetDeviceGroupSurfacePresentModes2EXT behaves similarly to flink:vkGetDeviceGroupSurfacePresentModesKHR, with the ability to specify extended inputs via chained input structures. .Valid Usage **** * [[VUID-vkGetDeviceGroupSurfacePresentModes2EXT-pSurfaceInfo-06213]] pname:pSurfaceInfo->surface must: be supported by all physical devices associated with pname:device, as reported by flink:vkGetPhysicalDeviceSurfaceSupportKHR or an equivalent platform-specific mechanism **** include::{generated}/validity/protos/vkGetDeviceGroupSurfacePresentModes2EXT.adoc[] -- endif::VK_EXT_full_screen_exclusive[] [open,refpage='vkGetPhysicalDevicePresentRectanglesKHR',desc='Query present rectangles for a surface on a physical device',type='protos'] -- :refpage: vkGetPhysicalDevicePresentRectanglesKHR When using ename:VK_DEVICE_GROUP_PRESENT_MODE_LOCAL_MULTI_DEVICE_BIT_KHR, the application may: need to know which regions of the surface are used when presenting locally on each physical device. Presentation of swapchain images to this surface need only have valid contents in the regions returned by this command. To query a set of rectangles used in presentation on the physical device, call: include::{generated}/api/protos/vkGetPhysicalDevicePresentRectanglesKHR.adoc[] * pname:physicalDevice is the physical device. * pname:surface is the surface. * pname:pRectCount is a pointer to an integer related to the number of rectangles available or queried, as described below. * pname:pRects is either `NULL` or a pointer to an array of slink:VkRect2D structures. If pname:pRects is `NULL`, then the number of rectangles used when presenting the given pname:surface is returned in pname:pRectCount. Otherwise, pname:pRectCount must: point to a variable set by the user to the number of elements in the pname:pRects array, and on return the variable is overwritten with the number of structures actually written to pname:pRects. If the value of pname:pRectCount is less than the number of rectangles, at most pname:pRectCount structures will be written, and ename:VK_INCOMPLETE will be returned instead of ename:VK_SUCCESS, to indicate that not all the available rectangles were returned. The values returned by this command are not invariant, and may: change in response to the surface being moved, resized, or occluded. The rectangles returned by this command must: not overlap. .Valid Usage **** include::{chapters}/commonvalidity/surface_physical_device_common.adoc[] **** include::{generated}/validity/protos/vkGetPhysicalDevicePresentRectanglesKHR.adoc[] -- endif::VK_VERSION_1_1,VK_KHR_device_group[] ifdef::VK_GOOGLE_display_timing[] include::{chapters}/VK_GOOGLE_display_timing/queries.adoc[] endif::VK_GOOGLE_display_timing[] ifdef::VK_KHR_present_wait[] include::{chapters}/VK_KHR_present_wait/present_wait.adoc[] endif::VK_KHR_present_wait[] include::{chapters}/VK_KHR_swapchain/wsi.adoc[] endif::VK_KHR_swapchain[] ifdef::VK_NV_present_barrier[] include::{chapters}/VK_NV_present_barrier/present_barrier.adoc[] endif::VK_NV_present_barrier[]