| [open,refpage='vkGetPhysicalDeviceSurfaceCapabilities2EXT',desc='Query surface capabilities',type='protos'] |
| -- |
| |
| To query the basic capabilities of a surface, needed in order to create a |
| swapchain, call: |
| |
| include::../../api/protos/vkGetPhysicalDeviceSurfaceCapabilities2EXT.txt[] |
| |
| * 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 an instance of the |
| slink:VkSurfaceCapabilities2EXT structure in which the capabilities are |
| returned. |
| |
| fname:vkGetPhysicalDeviceSurfaceCapabilities2EXT behaves similarly to |
| flink:vkGetPhysicalDeviceSurfaceCapabilitiesKHR, with the ability to return |
| extended information by adding extension structures to the pname:pNext chain |
| of its pname:pSurfaceCapabilities parameter. |
| |
| include::../../validity/protos/vkGetPhysicalDeviceSurfaceCapabilities2EXT.txt[] |
| -- |
| |
| [open,refpage='VkSurfaceCapabilities2EXT',desc='Structure describing capabilities of a surface',type='structs'] |
| -- |
| |
| The sname:VkSurfaceCapabilities2EXT structure is defined as: |
| |
| include::../../api/structs/VkSurfaceCapabilities2EXT.txt[] |
| |
| All members of sname:VkSurfaceCapabilities2EXT are identical to the |
| corresponding members of slink:VkSurfaceCapabilitiesKHR where one exists. |
| The remaining members are: |
| |
| * pname:sType is the type of this structure. |
| * pname:pNext is `NULL` or a pointer to an extension-specific structure. |
| * pname:supportedSurfaceCounters is a bitmask of |
| elink:VkSurfaceCounterFlagBitsEXT indicating the supported surface |
| counter types. |
| |
| .Valid Usage |
| **** |
| * [[VUID-VkSurfaceCapabilities2EXT-supportedSurfaceCounters-01246]] |
| pname:supportedSurfaceCounters must: not include |
| ename:VK_SURFACE_COUNTER_VBLANK_EXT unless the surface queried is a |
| <<wsi-display-surfaces,display surface>>. |
| **** |
| |
| include::../../validity/structs/VkSurfaceCapabilities2EXT.txt[] |
| -- |
| |
| [open,refpage='VkSurfaceCounterFlagBitsEXT',desc='Surface-relative counter types',type='enums'] |
| -- |
| |
| Bits which can: be set in |
| slink:VkSurfaceCapabilities2EXT::pname:supportedSurfaceCounters, indicating |
| supported surface counter types, are: |
| |
| include::../../api/enums/VkSurfaceCounterFlagBitsEXT.txt[] |
| |
| * ename:VK_SURFACE_COUNTER_VBLANK_EXT specifies a counter incrementing |
| once every time a vertical blanking period occurs on the display |
| associated with the surface. |
| |
| -- |
| |
| [open,refpage='VkSurfaceCounterFlagsEXT',desc='Bitmask of VkSurfaceCounterFlagBitsEXT',type='enums'] |
| -- |
| include::../../api/flags/VkSurfaceCounterFlagsEXT.txt[] |
| |
| sname:VkSurfaceCounterFlagsEXT is a bitmask type for setting a mask of zero |
| or more slink:VkSurfaceCounterFlagBitsEXT. |
| -- |
| |
