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b9e9296cd8
* Bump API patch number and header version number to 53 for this update.
Github Issues:
Internal Issues:
* Clarify mappings of coordinates for mutable, compatible image views in
slink:VkImageViewCreateInfo (internal issue 815).
* Make ename:VK_BIND_SFR_BIT require a logical device with multiple
physical devices, so that standard sparse image block dimensions are
only required on systems that support multi-GPU (internal issue 835).
* Convert all files from use of // refBegin .. // refEnd comments to
delimit ref pages, to use of open blocks, and update style guide
accordingly (internal issue 839).
* Add valid usage for slink:VkWriteDescriptorSet when performing updates
to a ename:VK_STORAGE_IMAGE descriptor with layout
ename:VK_IMAGE_LAYOUT_GENERAL.
* Add a hack to the validity generator script to support an odd
interaction between flink:vkCmdFillBuffer and an extension (internal
issue 853).
* Remove redundant text describing slink:VkBufferCreateInfo::pname:usage,
which was already covered by implicit valid usage (internal issue 854).
* Update implicit validity generator script to properly handle the
pname:sType and pname:pNext members of "returnedonly" structures
(internal issue 874).
* Note that slink:VkApplicationInfo::pname:pApplicationName &
slink:VkApplicationInfo::pname:pEngineName are optional, and add missing
implicit valid usage statements for flink:vkDestroyInstance.
* Added missing valid usage for flink:vkCmdWriteTimestamp to require a
timestamp query pool.
* Simplify and/or split "`non-atomic`" valid usage statements.
New Extensions:
* `VK_AMD_gpu_shader_int16`
* `VK_EXT_blend_operation_advanced`
* `VK_EXT_sampler_filter_minmax`
* `VK_NV_framebuffer_mixed_samples`
-----------------------------------------------------
Note: the 1.0.52 spec wasn't published on github, so the 1.0.53 release
combines both change sets.
-----------------------------------------------------
Change log for June 13, 2017 Vulkan 1.0.52 spec update:
* Bump API patch number and header version number to 52 for this update.
Github Issues:
Internal Issues:
* Clarify behavior when non-coherent memory has
<<memory-device-unmap-does-not-flush, not been flushed before being
unmapped>> (internal issue 819).
* Fix description of code:WorkgroupSize builtin to note it decorates an
object, not a variable (internal issue 836).
* Fix asciidoc attributes so that trailing '{plus}' symbols in [eq] style
equations are rendered properly (internal issue 845).
* Add language to the "`Extension Handles, Objects, Enums, and Typedefs`"
section of the Procedures and Conventions document stating that any new
handle type requires a corresponding entry in the elink:VkObjectType
enumerated type (internal issue 856).
* Update style guide to use slink macro for Vulkan handle type names, and
define narrow conditions under which to use the *name and *text macros
instead of *link (internal issue 886).
* Add a dependency of the <<VK_KHX_device_group,VK_KHX_device_group>>
extension on VK_KHX_device_group_creation to +vk.xml+ and the extension
appendix.
* Change the copyright on Vulkan specification asciidoc *source* files to
CC-BY 4.0, and update the proprietary Khronos copyright applied to the
generated *output* formats (internal issue 327). This enables broader
re-use and modification of the Vulkan specification sources, while not
affecting the Reciprocal IP License between Vulkan Adopters and Working
Group Members.
New Extensions:
* `VK_NV_fill_rectangle`
* `VK_NV_fragment_coverage_to_color`
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[open,refpage='VkPresentTimesInfoGOOGLE',desc='The earliest time each image should be presented',type='structs']
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--
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When the +VK_GOOGLE_display_timing+ extension is enabled, additional fields
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can: be specified that allow an application to specify the earliest time
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that an image should be displayed.
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This allows an application to avoid stutter that is caused by an image being
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displayed earlier than planned.
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Such stuttering can occur with both fixed and variable-refresh-rate
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displays, because stuttering occurs when the geometry is not correctly
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positioned for when the image is displayed.
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An application can: instruct the presentation engine that an image should
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not be displayed earlier than a specified time by including the
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sname:VkPresentTimesInfoGOOGLE structure in the pname:pNext chain of the
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sname:VkPresentInfoKHR structure.
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The sname:VkPresentTimesInfoGOOGLE structure is defined as:
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include::../../api/structs/VkPresentTimesInfoGOOGLE.txt[]
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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:swapchainCount is the number of swapchains being presented to by
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this command.
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* pname:pTimes is `NULL` or a pointer to an array of
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sname:VkPresentTimeGOOGLE elements with pname:swapchainCount entries.
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If not `NULL`, each element of pname:pTimes contains the earliest time
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to present the image corresponding to the entry in the
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sname:VkPresentInfoKHR::pname:pImageIndices array.
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.Valid Usage
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****
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* [[VUID-VkPresentTimesInfoGOOGLE-swapchainCount-01247]]
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pname:swapchainCount must: be the same value as
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sname:VkPresentInfoKHR::pname:swapchainCount, where
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sname:VkPresentInfoKHR is in the pname:pNext chain of this
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sname:VkPresentTimesInfoGOOGLE structure.
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****
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include::../../validity/structs/VkPresentTimesInfoGOOGLE.txt[]
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--
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[open,refpage='VkPresentTimeGOOGLE',desc='The earliest time image should be presented',type='structs']
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--
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The sname:VkPresentTimeGOOGLE structure is defined as:
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include::../../api/structs/VkPresentTimeGOOGLE.txt[]
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* pname:presentID is an application-provided identification value, that
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can: be used with the results of
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flink:vkGetPastPresentationTimingGOOGLE, in order to uniquely identify
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this present.
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In order to be useful to the application, it should: be unique within
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some period of time that is meaningful to the application.
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* pname:desiredPresentTime indicates that the image given should: not be
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displayed to the user any earlier than this time.
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pname:desiredPresentTime is a time in nanoseconds, relative to a
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monotonically-increasing clock (e.g. `CLOCK_MONOTONIC` (see
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clock_gettime(2)) on Android and Linux).
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A value of zero indicates that the presentation engine may: display the
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image at any time.
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This is useful when the application desires to provide pname:presentID,
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but doesn't need a specific pname:desiredPresentTime.
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--
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