* Bump API patch number and header version number to 20 for this
update.
Github Issues:
* Replaced existing reference pages by text automatically extracted
from the specification source, or generated from vk.xml in some
cases. This isn't a complete solution for the reference pages, but
puts them in a much better state. The ref pages (only) are now
placed under a CC BY open source license, which is more current than
the obsolete license previously used.
Further improvements to the pages should not edit them directly, but
instead concentrate on the specification source from which the ref
pages are being extracted (public issues 44, 55, 160; internal issue
389).
* Bump API patch number and header version number to 19 for this
update.
Github Issues:
* Clarified how flink:vkGetImageSubresourceLayout interacts with image
layouts (public issue 247).
* Remove ename:VK_IMAGE_LAYOUT_PREINITIALIZED from valid usage rule for
slink:VkImageMemoryBarrier::pname:oldLayout. It is only valid if it is
the current layout (public issue 248).
* Modify valid usage for flink:vkBindBufferMemory so implementations are
free to require a different backing memory size than the buffer size
(public issue 251).
* Clarify that filtering rules for flink:vkCmdBlitImage always apply, and
are usually no-ops if the formats are the same (public issue 253).
* Remove 'non-sparse' from description of
flink:vkGetBufferMemoryRequirements and
flink:vkGetImageMemoryRequirements (public issue 257).
* Remove ename:VK_ERROR_LAYER_NOT_PRESENT error code from
flink:vkCreateDevice (public issue 259).
* Change "must not" to "should not" in constraint on when
flink:vkAcquireNextImageKHR is called in the +VK_KHR_swapchain+ branch
(public issue 262).
* Change type of flink:vkCmdUpdateBuffer::pname:pData from
basetype:uint32_t* to basetype:void* (public issue 263).
* Change should: to must: in description of where additional segments are
placed in the <<[tessellation-tessellator-spacing,Tessellator Spacing>>
section (public issue 264).
Internal Issues:
* Normalize the language of all the compute shader built-ins in the
<<interfaces-builtin-variables,Built-in Variables>> section (internal
issue 323).
* Remove definition of presentation engine internal queue lengths
associated with ename:VK_PRESENT_MODE_FIFO_KHR and
ename:VK_PRESENT_MODE_FIFO_RELAXED_KHR in the <<Window System
Integration,wsi>> chapter (internal issue 374).
* The language of a Note was too broad, and implied that loaders for a
given OS would statically export functions for WSI extensions that
weren't relevant to (or supported on) the OS. Also, removed
"Khronos-provided" since the Android loader isn't (internal issue 380)
Other Commits:
* Add ename:VK_INCOMPLETE to list of return values for
flink:vkGetPipelineCacheData. Spec says this value is returnable, but it
wasn't listed in the error codes.
* Fix "correponds" typo in member definitions for
slink:VkSubpassDescription.
* Bump API patch number and header version number to 17 for this
update.
Github Issues:
* Update description of vertex shader reuse in
<<shaders-vertex-execution>> (public issue 106).
* Simplify validity language around pname:ppEnabledExtensionNames and
pname:ppEnabledLayerNames (in the <<initialization-instances>> and
<<devsandqueues-device-creation>> sections) (public issue 214).
* Add missing validity rule to flink:vkCmdBeginRenderPass requiring
compatibility between slink:VkAttachmentDescription pname:initalLayout
members and the corresponding attached framebuffer images (public issue
233).
* Fix Unicode arrows appearing in output instead of relational operators
(public issue 239).
* Correctly describe the required number of elements for
code:TessLevelInner and code:TessLevelOuter arrays in the
<<interfaces-builtin-variables,Built-In Variables>> section as two and
four, respectively, instead of the other way around, and refer to this
section from the <<tessellation,Tessellation>> chapter (public issue
246).
Internal Issues:
* Document deprecation of ename:VK_COLORSPACE_SRGB_NONLINEAR_KHR in the
VK_KHR_surface extension branch, and of
ename:VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT in the
VK_EXT_debug_report branch (internal issue 328).
* Added language to define what a valid usage statement is and should be,
with a note about some apparent weirdnesses this might entail (internal
issue 357).
Other Commits:
* Added missing ename:VK_ERROR_DEVICE_LOST error to
flink:vkQueueBindSparse.
* Bump API patch number and header version number to 15 for this
update.
Github Issues:
* Fixed the <<glossary,Glossary>> entry for Fragment Input Attachment
Interface to specify code:UniformConstant storage class (public issue
156).
* Disallow lazily allocated memory for buffers in the description of
slink:VkMemoryRequirements::pname:memoryTypeBits (public issue 196).
* Add numbered figure captions (public issue 219).
* Fix output variable names in the <<fundamentals-fpfixedconv,Conversion
from Floating-Point to Normalized Fixed-Point>> section and related
minor normative language and markup cleanup (public issue 220).
Internal Issues:
* Fix reference to nonexistent etext:VK_IMAGE_LAYOUT_TRANSFER_{SRC,DST}BIT
to the actual etext:VK_IMAGE_LAYOUT{SRC,DST}_OPTIMAL (internal issue
296).
* Update the <<sparsememory-sparse-memory-aliasing,Sparse Resource
Implementation Guidelines>> to refer to the correct feature names
(internal issue 305).
* Bump API patch number and header version number to 11 for this
update.
Github Issues:
* Clarify the WSI extension language by switching from the fuzzier
"ownership" language to more-consistent "acquire" language (public
issue 117).
* Clarify that memory barriers apply to all commands in the dependency
chains in the flink:vkGetRenderAreaGranularity command and the
<<synchronization-execution-and-memory-dependencies,Execution And
Memory Dependencies>> section (public issue 132).
* Clarify that a queue family is a set of queues in the
<<fundamentals-execmodel,Execution Model>> section (public issue
166).
* Removed requirement from valid usage language that
VkPresentInfoKHR::waitSemaphoreCount must be greater than 0 (public
issue 171).
* Fix broken internal links, describe structures consistently, use
consistent style for SPIR-V codewords, and tag normative terms that
were missing asciidoc tags (public issue 183 and ancillary
markup/normative language fixes).
* Fix typos for slink:VkPhysicalDeviceLimits member names in
slink:VkImageCreateInfo validity language (public issue 184).
Internal Issues:
* Document that the requested patch version number specified as part
of slink:VkApplicationInfo::pname:apiVersion is ignored when
creating an instance (internal issue 176).
* Clarify handling of extension structs in the
<<fundamentals-validusageValid Usage>> section (internal issue 254).
* Update required slink:VkImageFormatProperties::pname:maxMipLevels to
be limited to the maximum allowed mipmap pyramid size corresponding
to the actual maximum supported size for the format (internal issue
256).
* Modify the <<features-extentperimagetype,Allowed Extent Values Based
On Image Type>> section so the allowed maximum extent is the maximum
image dimension supported for each dimension of the type of texture
being queried (internal issue 257).
* Clarify in the <<spirvenv-module-validation,Validation Rules within
a Module>> section that at least one of the code:LocalSize execution
mode or code:WorkgroupSize decoration is required for each compute
shader entry point in a shader module (internal issue 279).
* Add validity rules for formats in flink:vkCmdClearColorImage and
flink:vkCmdClearDepthStencilImage (internal issue 283).
* Clarify that slink:VkImageFormatProperties::pname:maxResourceSize is
an upper bound, and that it may not be possible to create an image
anywhere near that size (internal issue 284).
Other Commits:
* Fix various minor markup errors reported by validation scripts.
* Change copyright from Khronos Free Use License to Apache 2.0 license
on relevant script/XML/header files. This does not affect the
specification source copyright.
* Bump API patch number and header version number to 6 for this
update.
Github Issues:
* Define 'invocation group' for compute and graphics shaders. Cleanup
definition and use of 'workgroup', and add glossary entries (public
issue 1).
* Various minor editorial fixes (public issue 33).
* Clarify locations for block members in the
<<interfaces-iointerfaces-locations,Location Assignment>>
section (public issue 45).
* Editorial fixes for <<commandbuffer-allocation,Command Buffer
Allocation>> section (public issues 54, 59).
* Clarify behavior of depth test in the <<fragops-depth,Depth
Test>> section (public issues 80, 81).
* Remove discussion of return codes from
flink:vkGetPhysicalDeviceSparseImageFormatProperties and
flink:vkGetImageSparseMemoryRequirements, which don't return values
(public issue 82).
* Allow flink:vkCmdDrawIndirect and flink:vkCmdDrawIndexedIndirect
pname:drawCount of 0, as well as 1, when the multiDrawIndirect
feature is not supported (public issue 88).
* Remove confusing wording in the <<features-limits,Limits>>
section describing the slink:VkPhysicalDeviceLimits
pname:minTexelBufferOffsetAlignment,
pname:minUniformBufferOffsetAlignment, and
pname:minStorageBufferOffsetAlignment members as both minimums and
maximums (public issue 91).
* Clarified that only the RGB components should be affected in places
where sRGB is referred to in the spec, such as ASTC formats. Minor
re-wording to avoid "color space" when actively incorrect, now that
we refer to the Data Format Spec which actually makes a distinction
between color space and transfer function (public issue 94).
* Treat pname:pPropertyCount == 0 consistently in
flink:vkEnumerateInstanceLayerProperties and
flink:vkEnumerateDeviceLayerProperties (public issue 99)
* Cleanup minor editorial issues in chapters 14-17 (public issue 100).
* Clarify definition of flink:vkEnumerateInstanceExtensionProperties
and flink:vkEnumerateDeviceExtensionProperties (public issue 101).
* Define the flink:vkEnumerateInstanceExtensionProperties and
flink:vkEnumerateDeviceExtensionProperties pname:pLayerName
parameter to be a pointer to a null-terminated UTF-8 string (public
issue 101).
* Rearrange "Missing information" references in mandatory format
tables (public issue 101).
* Clarify that the enumerated extensions returned by
flink:vkEnumerateInstanceExtensionProperties and
flink:vkEnumerateDeviceExtensionProperties will only include
extensions provided by the platform or extensions implemented in
implicitly enabled layers (public issue 101).
* Miscellaneous editorial fixes. Include the Vulkan spec patch number
in the PDF title. Fix label on <<fig-non-strict-lines,Non
strict lines>> diagram. Use more easily distinguished symbols in
tables in the <<features-required-format-support,Required
Format Support>> section. Don't require FQDNs used as layer names be
encoded in lower case if not possible, in the
<<extensions-naming-conventions, Extension and Layer Naming
Conventions>> section (public issues 101, 119, 121).
Internal Issues:
* Fixed excessive spacing in tables in XHTML (internal issue 18).
* Clarify that ename:VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT
applies to secondary command buffers. Previously spec only referred
to the members of pname:pCommandBuffers being affected by this bit.
Added a separate slink:VkSubmitInfo Valid Usage restriction
specifying that ename:VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT
also applies to any secondary command buffers that are recorded into
the primary command buffers in pname:pCommandBuffers (internal issue
106).
* Clarify that slink:VkDeviceCreateInfo::pname:pEnabledFeatures can be
NULL (internal issue 117).
* Remove "the value of" where it is redundant (e.g. speaking of an API
parameter, struct member, or SPIR-V variable, but not when speaking
of color components) (internal issue 175).
* Forced patch version to always be 0 in the header. Add a
"VK_API_VERSION_<major>_<minor>" macro for people to use to do the
right thing. Add a VK_HEADER_VERSION which captures the header
release number independent of the spec patch number (internal issue
176).
* Correct description of
slink:VkPipelineShaderStageCreateInfo::pname:pName to "a pointer to
a null-terminated UTF-8 string" (internal issue #197).
Other Commits:
* Updated DataFormat spec reference to the new date for revision 5 of
that spec.
* Fixed KEEP option (to retain LaTeX intermediate files) in the
Makefile to be included when edited there, as well as set on the
command line.
* Reserve and add "VK_IMG_filter_cubic" to the registry, and implement
script functionality to add and remove validity from existing
functions. Includes schema and readme changes.
* Update GL_KHR_vulkan_glsl so push_constants do not have descriptor
sets.
Jon Leech
Philip Taylor