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