1) Make explicit there is a <=> relationship between `DEVICE_LOCAL` heap
and `DEVICE_LOCAL` memory type
2) Make >4GB runtime error report mandatory. Otherwise it basically says
"do not pass >= 4GB, because possible undefined behavior".
3) Removed `VUID-vkAllocateMemory-device-00636`. Behavior is
deterministic returning `VK_ERROR_TOO_MANY_OBJECTS`
4) Moved `allocationSize` VU (depends on non-local state).
5) Changed `allocationSize`. Not sure what the original means, so
improvized a new one saying alloc size must be <= the whole size of the
heap.
6) Added VU restricting `memoryTypeIndex` to only the memory types of
the device.
1) Random grammar and formatting
2) Make example in first paragraph more
straightforward with elementary
Vulkan primitives (the original also
seemed factually wrong in places;
e.g. does UBO really have to be in
"on-device" memory?)
3) Removed unnecessary brandishing of obscure math
describing the memory
type list order. Tried something equally formal,
but more readable.
4) Made a note into a Note
5) Updated example.
Function names seem to be lower-case in the spec.
Hopefully made it bit
more readable. Turned the acompanying note into
the example content and
inline comments.
6) Removed redundant `VkDeviceMemory` intro
7) Break
out specifying language out of a Note
8) More straightforward description of `memoryTypeIndex`
* Bump API patch number and header version number to 64 for this update.
Github Issues:
* Add chapter name to the PDF page footer (public pull request 458).
* Fix several mistaken references to the nonexistent etext:VK_DEVICE_LOST
status to etext:VK_ERROR_DEVICE_LOST (public pull request 502).
* Fix description of the tlink:PFN_vkDebugReportCallbackEXT debug report
callback function pointer to match the validation layer behavior (public
issue 534).
* Document experimental KHX extensions and alternate vendor author IDs
also ending in X in more detail in the <<extensions, Layers &
Extensions>> appendix, the extensions section of the style guide, and
the registry schema description document (public issues 536, 580).
* Fix references to ptext:pDepthStencil to properly refer to
pname:pDepthStencilState or pname:pRasterizationState as appropriate in
the slink:VkGraphicsPipelineCreateInfo description (public issue 542).
* Fix wrong parameter name in slink:VkPipelineMultisampleStateCreateInfo
valid usage (public pull request 571).
Internal Issues:
* Update the style guide to describe how to write LaTeX math expressions
in table cells (internal issue 908).
* Define how framebuffer-local dependencies work between subpasses with
the same or different numbers of samples, in the
slink:VkSubpassDescription and <<synchronization-framebuffer-regions,
Framebuffer Region Dependencies>> sections. This clarifies which samples
in an input attachment you are allowed to access after a
framebuffer-local dependency (internal issue 915).
* Specify which storage classes can have an initializer in the
<<spirvenv-module-validation, Validation Rules within a Module>> section
(internal issue 1023).
* Use "LOD" consistently for "level-of-detail", to eliminate spelling
inconsistencies. The term is already standardized in the Glossary
(internal issue 1027).
Other Issues:
* Fix false positives in Makefile dependencies when rules fail, by
deleting partially-made targets.
New Extensions:
* `VK_AMD_shader_info`
* Bump API patch number and header version number to 63 for this update.
Github Issues:
* Add missing valid usage statements for ptext:maxDescriptorSets*,
ptext:maxPerStageDescriptorInputAttachments, and
ptext:maxPerStageResources to slink:VkPipelineLayoutCreateInfo.txt,
flink:VkComputePipelineCreateInfo, and
flink:VkGraphicsPipelineCreateInfo (public issue 546).
* Fix typos in ftext:vkCmdDraw*AMD descriptions (public pull request 549).
* Fixed flink:vkCmdWriteTimestamp so it is not unnecessarily restricted to
queues supporting graphics or compute operations (public issue 558).
* Improvements to valid usage generator for output `*Flags` pointer
parameters and for some `void *` parameters (public pull requests 560,
562).
* Document `altlen` attribute in XML schema as valid C99 syntax and tweak
`vk.xml` to match (public pull request 566).
* Clarify when pname:fence is signaled by flink:vkQueueSubmit in a more
obvious place (public issue 577).
Internal Issues:
* Specify a whitelist of supported SPIR-V Storage Classes in the
<<spirvenv-module-validation, Validation Rules within a Module>>
appendix (internal SPIR-V issue 166).
* Relax the shared semaphore wait timeout requirement in the
<<synchronization-semaphores-importing, Importing Semaphore Payloads>>
section (internal issue 820).
* Update the <<textures-image-level-selection, Image Level(s) Selection>>
equations so that the parameters returned by the level-of-detail query
appear explicitly, also fixing the issue that linear filtering would
select a level below the base level for magnification (internal issue
926).
* Disallow creation of a swapchain with zero pname:imageExtent in
slink:VkSurfaceCapabilitiesKHR and slink:VkSwapchainCreateInfoKHR
(internal issue 1020).
Other Issues:
* Clarify in <<textures-operation-validation,Image View Validation>> that
the layout of subresources in an image view must have a layout that
matches that written into the descriptor, and that this section is about
validating image views, not images.
New Extensions:
* `VK_EXT_global_priority`
- Make implicit validity for optional `void*` mean "nothing" in the
script
- Make `optional` mean non-NULL for `void*` (not implemented)
- Uses of `void*` that point to something should have `noautovalidity`
(adding it)
- Add missing explicit VUs of `void*` parameters
(`vkCmdPushDescriptorSetWithTemplateKHR` and
`vkUpdateDescriptorSetWithTemplateKHR`)
- Also indirectly fixes `vkMapMemory`, `VkAllocationCallbacks`,
`VkDebugReportCallbackCreateInfoEXT`, and Apple and NN surface create
- Remove ugly text hack from script
* Bump API patch number and header version number to 62 for this update.
Github Issues:
* Move asciidoc conditionals for `VK_KHR_maintenance1` in
slink:VkDescriptorSetAllocateInfo so valid usage statements for
`VK_KHR_push_descriptor` aren't accidentally removed when the first
extension isn't enabled (public issue 573).
* Fixed errors in API example code for
flink:vkUpdateDescriptorSetWithTemplateKHR and
flink:vkCmdPushDescriptorSetWithTemplateKHR (public issue 577).
Internal Issues:
* Specify constraints on concurrent access to fences that share payload in
the <<synchronization-fences-importing, Importing Fence Payloads>> and
<<synchronization-semaphores-waiting-state, Semaphore State Requirements
For Wait Operations>> sections (internal issue 820).
* Define the term "`retired swapchain`", reorganize some swapchain
language, and improve language for pname:oldSwapchain in
flink:VkSwapchainCreateInfoKHR, the <<swapchain-wsi-image-create-info>>
table, flink:vkDestroySwapchainKHR, and flink:vkAcquireNextImage2KHX
(internal issue 869).
* Describe in the <<writing-arrays, Describing Properties of Array
Elements>> section of the style guide how and when to use "`each`" and
"`any`" to refer to properties of array elements, and make those uses in
the specification consistent (internal issue 884).
* Clarified that events cannot be used for cross-queue synchronization in
the <<synchronization-events, Events>> section and for
flink:vkCmdWaitEvents (internal issue 970).
* Add success and error codes to +vk.xml+ for
flink:vkCreateValidationCacheEXT (internal issue 995).
* Clarify aspect mask usage for image memory barriers of multi-plane
images in slink:VkImageSubresourceRange, slink:VkImageMemoryBarrier, and
the <<textures-layout-validation, Layout Validation>> section (internal
issue 996).
Other Issues:
* Fixed typo in flink:VkRenderPassSampleLocationsBeginInfoEXT (renamed
field pname:pSubpassSampleLocations to
pname:pPostSubpassSampleLocations).
* Add missing buffer usage requirements for indirect draws in
flink:vkCmdDrawIndirect, flink:vkCmdDrawIndirectCountAMD,
flink:vkCmdDrawIndexedIndirect, and
flink:vlCmdDrawIndexedIndirectCountAMD.
* Modify Makefile to allow specification to build in git "`detached HEAD`"
state.
* Update valid usage ID generation script to allow recursively operating
on all `.txt` files in a specified directory, and move the `startVUID`
tracking information into a separate python file that is automatically
updated by the script.
New Extensions:
* Add +vk.xml+ entries for pending `VK_ANDROID_native_buffer` extension
(note, this extension is not yet enabled).
* `VK_AMD_shader_image_load_store_lod`
* Bump API patch number and header version number to 61 for this update.
Github Issues:
* Provide alternate length attributes (altlen=) in the XML schema, for
those using length attributes to generate code instead of documentation
(public issue 555).
* Fix erroneous references to `latex:` being used for asciidoc math
markup, rather than `latexmath:` (public pull request 556).
* Add author ID to XML for Kazan software renderer (public pull request
557).
Internal Issues:
* Add the <<fundamentals-abi,Application Binary Interface>> section
describing platform ABI requirements and recommendations, add examples
of function and function pointer declarations to the
<<boilerplate-platform-specific-calling-conventions, Platform-Specific
Calling Conventions>> section, and remove related language that existed
elsewhere in the specification (internal issue 64).
* Describe where to document valid usage interactions of chained
structures in the style guide, and fix one case now appearing in
slink:VkBufferCreateInfo instead of the child
slink:VkDedicatedAllocationBufferCreateInfoNV structure (internal issue
715).
* Add example to the style guide of describing enumerated types which are
empty when the spec is built without relevant extensions enabled, and
apply it to existing examples for
elink:VkDescriptorSetLayoutCreateFlagBits and
elink:VkSubpassDescriptionFlagBits (internal issue 864).
* Add a note to the <<fundamentals-validusage-enums, Valid Usage for
Enumerated Types>> section that the special values suffixed with
etext:_BEGIN_RANGE, etext:_END_RANGE, etext:_RANGE_SIZE and
etext:_MAX_ENUM are not part of the API and should: not be used by
applications (internal issue 872).
* Added note to flink:vkCmdUpdateBuffers explaining the performance
penalty for copies done in this way, and why the upper copy limit is
what it is (internal issue 952).
* Update `VK_KHX_device_group` to split some functionality into the new
`VK_KHR_bind_memory2` extension, and rename that functionality (internal
issue 969).
* Remove *Status* fields from extension appendices, since they are by
definition published and complete by the time they reach the public
github repository (internal issue 973).
Other Issues:
* Update Data Format specification dependency to version 1.2 and change
references to DF sections accordingly.
* Update XML to make the pname:pAllocator parameter of
flink:vkRegisterDeviceEventEXT and flink:vkRegisterDisplayEventEXT in
the `VK_EXT_display_control` extension as optional.
New Extensions:
* `VK_KHR_bind_memory2`
* `VK_KHR_image_format_list`
* `VK_KHR_maintenance2`
* `VK_KHR_sampler_ycbcr_conversion`
* Bump API patch number and header version number to 60 for this update.
Github Issues:
* Document that <<queries-timestamps, Timestamp Queries>> can only be
meaningfully compared when they are written from the same queue (public
issue 216).
* Document that the `<extension>` tag `type` attribute is required for
non-disabled extensions (derived from, but does not close public issue
354).
* Clean up registry schema length attribute descriptions to be consistent
and correct (public issue 555).
Internal Issues:
* Replace as much of the hand-written extension appendix metadata as
possible with asciidoc includes generated from corresponding attributes
of +vk.xml+, and enhance the style guide to match. This avoids
inconsistencies between +vk.xml+ and the appendices, and produces a more
uniform style (internal issue 137).
* Remove the generated extDependency.{py,sh} files from the tree and
create them dynamically on demand instead, reducing merge conflicts
(internal issue 713).
* Add a prototype tool for generating in-place difference markup for
sections guarded by asciidoc conditionals, and new syntax for open
blocks to support it (internal issue 833).
* Remove unnecessary restriction of etext:*SYNC_FD_BIT_KHR external handle
types to the same physical device in the
slink:VkPhysicalDeviceIDPropertiesKHR,
flink:VkImportMemoryWin32HandleInfoKHR,
slink:VkImportFenceWin32HandleInfoKHR, slink:VkImportFenceFdInfoKHR,
slink:VkImportSemaphoreWin32HandleInfoKHR,
slink:VkImportSemaphoreFdInfoKHR
<<external-memory-handle-types-compatibility, External memory handle
types compatibility>>, <<external-semaphore-handle-types-compatibility,
External semaphore handle types compatibility>>, and
<<external-fence-handle-types-compatibility, External fence handle types
compatibility>> sections (internal issue 956).
Other Issues:
* Remove dependency of +VK_KHX_device_group+ on +VK_KHR_swapchain+ (there
is an interaction, but not a strict dependency), and add a new
`extension` attribute to the `<require` XML tag to allow classifying a
subset of interfaces of an extension as requiring another extension.
Update the registry schema and documentation accordingly.
New Extensions:
* `VK_AMD_shader_fragment_mask` (and related `GL_AMD_shader_fragment_mask`
GLSL extension)
* `VK_EXT_sample_locations`
* `VK_EXT_validation_cache`
* Bump API patch number and header version number to 59 for this update.
Github Issues:
* Fix a few missing Implicit Valid Usage statements to indicate that a
common parent of two objects is required (public issue 497).
* Clarify render pass synchronization language for
slink:VkSubpassDependency and \<\<renderpass,render passes>> (public
issue 531).
* Rename ename:VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES2_EXT to
ename:VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_EXT for consistency, and
add an alias for backwards compatibility (public issue 539).
Internal Issues:
* Add an explanation to the \<\<interfaces-builtin-variables-layer,
code:Layer>> description explaining that writing to invalid layers
results may or may not result in primitives being processed and fragment
shaders being run, and gives undefined results in the framebuffer
(internal issue 614)
* Add valid usage statement for slink:VkDescriptorSetLayoutBinding
requiring that input attachment descriptor bindings must not use
non-fragment stages (internal issue 933).
Other Issues:
* Makes description of pname:loadOp and pname:storeOp easier to read in
the \<\<renderpass-load-store-ops>> section.
New Extensions:
* `VK_EXT_shader_stencil_export`
* Bump API patch number and header version number to 58 for this update.
Github Issues:
* Update the <<interfaces-resources-descset,Descriptor Set Interface>>
section to allow multiple variables with the same descriptor set/binding
decorations, and require that all variables that are statically used
must be consistent with the pipeline layout. Allow
ename:VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER to be used with texture
and sampler variables (public issues 522, 524).
Internal Issues:
* Replace networkx package used for extension dependency generation with a
homegrown network dependency traverser (internal issue 713).
* Specify in the <<interfaces-fragmentoutput, Fragment Output Interface>>
section that if a fragment shader writes integers that cannot be
represented in the format of the colour attachment, then the result is
undefined (internal issue 893).
* Separate malformed valid usage statement for
slink:VkPipelineRasterizationStateCreateInfo into two (internal issue
918).
* Fix cases where the term 'pNext chain' is incorrectly used in reference
to functions, rather than their parameters. Replace 'pNext list' with
'pNext chain'. Fixed typo in the example code of
+VK_KHR_dedicated_allocation+ (internal issue 944).
* Fix typo in elink:VkExternalSemaphoreHandleTypeFlagBitsKHR enum
descriptions, replacing
etext:VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_FENCE_FD_BIT_KHR with
ename:VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_SYNC_FD_BIT_KHR, and make the
description more consistent with
VK_EXTERNAL_FENCE_HANDLE_TYPE_SYNC_FD_BIT_KHR (internal issue 950).
Other Issues:
* Clarify how pipeline stage masks affect
<<synchronization-pipeline-stages-masks, access and synchronization
scopes>>.
* Clarify that dedicated allocations do not allow aliasing in the
flink:vkBindBufferMemory and flink:vkBindImageMemory valid usage
statements.
* Correct specification of pname:dynamicCount for push_constant token in
slink:VkIndirectCommandsLayoutNVX.
New Extensions:
* `VK_EXT_shader_viewport_index_layer`
* Bump API patch number and header version number to 57 for this update.
Github Issues:
* Fix error in description of ename:VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK
block size (public issue 342).
* Update documentation of ename:VK_PIPELINE_CREATE_ALLOW_DERIVATIVES_BIT
to explicitly mention both graphics and compute pipelines (public issue
525).
Internal Issues:
* Document that
slink:VkPhysicalDeviceLimits::pname:framebufferColorSampleCounts does
not cover integer formats (internal issue 550).
* Add a note under slink:VkImageViewCreateInfo describing how values meant
for one format can be sanitized when used via another format (internal
issue 927).
* Add valid usage statements to ftext:vkCmd* documenting that image
subresources used as attachments must not be accessed as non-attachments
in a render pass (internal issue 929).
* Remove obsolete 'validextensionstructs' attribute from +vk.xml+, the XML
schema, and the schema documentation (internal issue 946).
New Extensions:
* `VK_AMD_mixed_attachment_samples`
* `VK_EXT_post_depth_coverage`
* `VK_KHR_relaxed_block_layout`
* `VK_NV_depth_range_unrestricted`
* Bump API patch number and header version number to 56 for this update.
Github Issues:
* Add valid usage statements for commands introduced by
`VK_EXT_debug_report` and `VK_EXT_debug_marker` extensions, regarding
the valid pname:object and pname:objectType values (public issue 495).
* Modify `GL_KHR_vulkan_glsl` specification to document that uniform and
buffer block arrays each take only a single binding (public issue 514).
* Add `KHX` author tag to +vk.xml+ (public issue 526).
Internal Issues:
* Document use of code: macro for non-Vulkan APIs in the style guide
(internal issue 863).
* Document that reference page open block delimiters must not contain
asciidoc section markup in the style guide (internal issue 898).
* Fix <<spirvenv,SPIR-V appendix>> to say
code:VariablePointersStorageBuffer instead of
code:VariablePointersUniformBufferBlock (internal issue 928).
Other Commits:
* Add missing extension structures to dependency attributes in +vk.xml+.
New Extenions:
* `VK_EXT_depth_range_unrestricted`
* Bump API patch number and header version number to 55 for this update.
Github Issues:
* Removed unintended optional parameter in +vk.xml+ from the
pname:pWaitSemaphores member of slink:VkPresentInfoKHR, which resulted
in the generation of an incorrect implicit valid usage clause allowing
pname:pWaitSemaphores to be NULL even when pname:waitSemaphoreCount is
non-zero (public issue 491).
* Add missing attribute to +vk.xml+ documenting that
slink:VkSwapchainCounterCreateInfoEXT extends
slink:VkSwapchainCreateInfo (public issue 510).
* Add const qualifier for some `VK_EXT_debug_market` extension command
parameters that were missing it (public issue 513).
* Fix definition of q and level~base~ in
<<textures-image-level-selection,Image Level(s) Selection>> (public
issue 515).
* Clarify lifetime requirement for slink:VkRenderPass objects used in
object creation (public issue 516).
* Fix link to floating/normalized fixed-point conversion from
<<interfaces-fragmentoutput,Fragment Output Interface>> (public issue
521).
Internal Issues:
* Update the style guide to include the general structure of a Vulkan
command name, the specific rule for using "`Get`" vs. "`Enumerate`" in
names, and a table of verbs commonly used in command names (spinoff of
internal issue 753).
* Clarified the behavior of automatic layout transitions in case of
attachment views that are 2D or 2D array views of 3D images. In
addition, restructured the valid usage clauses corresponding to the
members of the slink:VkImageSubresourceRange structure and added missing
valid usage clauses for its pname:baseMipLevel and pname:baseArrayLayer
members (internal issues 803, 849).
* Modify `GL_KHR_vulkan_glsl` specification to allow explicit std430 on a
push_constant declaration (internal issue 919).
Other Commits:
* Modify <<synchronization-framebuffer-regions, Framebuffer Region
Dependencies>> to use synchronization scope terminology.
* Add ename:VK_COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT to the
`VK_EXT_swapchain_colorspace` extension.
* Replace XML comments with `comment` attributes and/or tags, to enable
tools which transform the XML without loss of information.
* Replace `validextensionstructs` with `structextends`, which is tagged in
the child structure instead of the parent. This makes it slightly
simpler to add new structs to the XML, causes fewer merge conflicts, and
the information is kept localized to the extension structures where it
belongs. The old `validextensionstructs` attributes will be retained
until we're certain this doesn't cause problems with known consumers of
+vk.xml+.
* Bump API patch number and header version number to 54 for this update.
Github Issues:
Internal Issues:
* Fix tessellation domain to have an upper-left origin in the
<<img-tessellation-topology-ul, tessellation toplogy image>> and related
language. CTS and all implementations were already doing this, it was
just a documentation bug that it was flipped to lower-left (internal
issue 603).
* Add a section to the style guide describing how VUID tags are changed
and removed when the corresponding Valid Usage statements are modified
(internal issue 829).
* Add explicit Valid Usage statement to
slink:VkPipelineDynamicStateCreateInfo to require that members of
pname:pDynamicStates must be unique (internal issue 851).
New Extensions:
* `VK_KHR_16bit_storage`
* `VK_KHR_dedicated_allocation`
* `VK_KHR_external_fence`
* `VK_KHR_external_fence_capabilities`
* `VK_KHR_external_fence_fd`
* `VK_KHR_external_fence_win32`
* `VK_KHR_get_memory_requirements2`
* `VK_KHR_storage_buffer_storage_class`
* `VK_KHR_variable_pointers`
Extensions Promoted From KHX To KHR Status:
* `VK_KHR_external_memory`
* `VK_KHR_external_memory_capabilities`
* `VK_KHR_external_memory_fd`
* `VK_KHR_external_memory_win32`
* `VK_KHR_external_semaphore`
* `VK_KHR_external_semaphore_capabilities`
* `VK_KHR_external_semaphore_fd`
* `VK_KHR_external_semaphore_win32`
* `VK_KHR_win32_keyed_mutex`
* 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`
* Bump API patch number and header version number to 51 for this update.
Github Issues:
* Add Valid Usage statement to flink:vkCmdResolveImage to require that
source and destination image formats match (public issue 492).
* Specify that a code:char* parameter must: be a valid null-terminated
string in the <<fundamentals-implicit-validity, implicit valid usage>>
section (public issue 494).
* Removed unnecessary VU for slink:VkPhysicalDeviceFeatures which is
covered by ename:VK_ERROR_FEATURE_NOT_PRESENT already (public issue
496).
* Clarify valid usage of pname:pQueueFamilyIndices in
slink:VkBufferCreateInfo, slink:VkImageCreateInfo, and
slink:VkSwapchainCreateInfoKHR (public issue 501).
* Document that dependencies of enabled extensions must also be enabled in
the <<extended-functionality-extensions-dependencies, Extension
Dependencies>> section (public issue 507).
Internal Issues:
* Change slink:VkMappedMemoryRange valid usage to allow pname:offset +
pname:size == size of the allocation. Also, if ename:VK_WHOLE_SIZE is
used, require the end of the mapping to be aligned to a multiple of
pname:nonCoherentAtomSize (internal issue 611).
* Add issue to `VK_KHR_win32_surface` about reusing window objects from a
different graphics API or Vulkan ICD (internal issue 639).
* Require locations on user in/out in `GL_KHR_vulkan_glsl` (internal issue
783).
* Added version info to the json validation output, and updated the schema
to match (internal issue 838).
* Restructure enumerated type descriptions separately from the command or
structure they are used in, allowing better reference page generation
(internal issue 841).
* Re-sort extension appendices to be in alphabetical order within each
author ID section.
* Fix enum naming and clarify behavior for
`VK_NVX_device_generated_commands` extension.
New Extensions:
* Bump API patch number and header version number to 50 for this update.
Github Issues:
* Fix numerous minor issues with the VK_EXT_debug_report extension (public
issues 478, 483, 486, 489, 490).
Internal Issues:
* Update flink:vkAllocateDescriptorSets to specify conditions under which
to return ename:VK_ERROR_FRAGMENTED_POOL or
ename:VK_ERROR_OUT_OF_POOL_MEMORY instead of
out-of-host/out-of-device-memory, and improve the
<<fundamentals-errorcodes, description of those errors (internal issue
654).
* Add a NOTE documenting that flink:vkAcquireNextImageKHR can only signal
a single semaphore, and how to deal with that when multiple physical
devices in a logical device need to wait on it (internal issue 730).
* Improve description of pname:pNext chains of
slink:VkPhysicalDeviceImageFormatInfo2KHR and
slink:VkImageFormatProperties2KHR (internal issue 814).
* Clean up math markup issues in the <<textures, Image Operations>>
chapter (internal issue 818).
* Update validusage target to use more robust code for preprocessing, by
making direct use of Asciidoctor's preprocessor. Added uniqueItems check
to JSON vu schema and add clean_validusage target (internal issue 826).
* Update style guide to prohibit writing non-self-contained (on a single
bullet point) Valid Usage statements, and modify offending Valid Usage
statements in the Specification to match, to assist with automatic
extraction for the validation layers (internal issue 828).
* Add ename:VK_VALIDATION_CHECK_SHADERS_EXT to elink:VkValidationCheckEXT
of the `VK_EXT_validation_flags` extension, to selectively disable
shader validation.
* Remove duplicate valid usage statement for slink:VkImageMemoryBarrier.
* Modify reflow.py script to place VUID tag anchors standalone on a line
following their corresponding bullet point, and reflow the spec text
accordingly (this had been pending since the initial tag deployment).
New Extensions:
* `VK_AMD_texture_gather_bias_lod`
* Bump API patch number and header version number to 49 for this update.
Github Issues:
* Modify reference page extraction script to make internal links to spec
anchors refer to the core specification instead of being dangling links
(public issue 455).
* Fix GL_KHR_vulkan_glsl typo and add a nor-normative mapping to the newly
published StorageBuffer class (public issue 466).
* Both flink:vkEnumerateInstanceExtensionProperties and
flink:vkEnumerateDeviceExtensionProperties return
ename:VK_ERROR_LAYER_NOT_PRESENT, which covers the error case of an
application providing a layer name that wasn't returned by
ftext:vkEnumerate{Instance|Device}LayerProperties (public issue 487).
* The specification for flink:VkApplicationInfo::apiVersion says that the
driver must return ename:VK_ERROR_INCOMPATIBLE_DRIVER in the case that
pname:apiVersion specifies a non-supported version. That means that the
valid usage should not also state that, and so the VU statement is
removed. The VU had language about "`an effective substitute`" that
would have been lost, and so it was moved to the pname:apiVersion
description (public issue 488).
Internal Issues:
* Modify implicit validity generator script to assign asciidoc anchors to
all valid usage statements it generates, and reflow.py script to insert
Valid Usage ID (VUID) tags into the specification source files for
explicit valid usage statements. This has no semantic effects on the
specification, but will support the validation layer's detection of
valid usage violations and allow it to link into the corresponding part
of the specification (internal issue 583).
* Assign VUID tags to all explicit VU statements and document
the process and tag format in the style guide (internal issue 583).
* Clarify the rules of whether to structure new functionality as instance
extensions, device extensions, or both in the
<<extended-functionality-instance-extensions-and-devices, Instance
Extensions and Device Extensions>> section (internal issue 749).
* Require that SPIR-V run-time arrays are only used with the
code:BufferBlock decoration (internal issue 750).
* Fix implicit and explicit valid usage statements for
slink:VkWriteDescriptorSet::pname:dstSet (internal issue 767)
* Fix SPIR-V code sample for ename:VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER
in the <<descriptorsets-uniformtexelbuffer, Uniform Texel Buffer>>
section (internal issue 770).
* Clarify that disabling depth testing also disables depth writes in the
<<fragops-ds-state, Depth and Stencil Operations>> section (internal
issue 775).
* flink:VkDescriptorImageInfo::pname:imageLayout must match the actual
imageLayout at the time the image is accessed. This was in the spec
text, but needed an associated valid usage statement.
* Note that only 32-bit atomic operations are supported in the
<<spirvenv-module-validation, Validation Rules within a Module>>
section.
* Note that code:UniformConstant variables must not have initializers in
the <<spirvenv-module-validation, Validation Rules within a Module>>
section.
* Add a new elink:VkObjectType enumeration to the core API, promoted from
elink:VkDebugObjectTypeEXT, since it is used for much more than just the
debug_report extension.
New Extensions:
* `VK_KHR_get_surface_capabilities2`
* `VK_KHR_shared_presentable_image`
* Bump API patch number and header version number to 48 for this update.
Github Issues:
Internal Issues:
* Add missing VU statements for flink:vkUpdateDescriptorSets (internal
issue 333).
* Correct swapped ifdef/ifndef blocks for `VK_KHR_maintenance1` extension
(internal issue 776).
* Bump API patch number and header version number to 47 for this update.
Github Issues:
* Allow <<synchronization-pipeline-barriers-subpass-self-dependencies,
self-dependencies>> (also described for slink:VkSubpassDependency) to
have earlier stages depend on later stages if all stages are
framebuffer-space (public issue 125).
* Clarify when pipeline state structures are ignored in the
slink:VkGraphicsPipelineCreateInfo strucure, when the tessellation
structure must be valid, and remove 'if `NULL`' descriptions from the
valid usage statements (public issue 445).
* Remove the obsolete "validextensionstructs" attribute for
flink:VkPresentRegionsKHR. This caused a pname:pNext valid usage
statement to be generated which wasn't consistent with what is stated in
the spec (public issue 481).
Internal Issues:
* Clarify facingness of non-polygon fragments for slink:VkStencilOpState
and in the code:FrontFacing <<interfaces-builtin-variables,built-in
variable description>>. Define 'facingness' of a fragment as a distinct
term from facingness of a polygon (internal issue 662).
* Clarify that the texture compression features (e.g.
pname:textureCompressionBC) means that all formats of that type
(<<features-features-textureCompressionASTC_LDR,ASTC>>,
<<features-features-textureCompressionETC2,ETC2>>,
<<features-features-textureCompressionBC,BC>>) are supported, and that
support for individual formats may: queried separately (internal issue
663).
* Clarify in the valid usage for slink:VkBindImageMemoryInfoKHX that each
SFR rectangle must be a multiple of the sparse block size for each
aspect, e.g. in a depth/stencil image using separate depth/stencil
planes (internal issue 721).
* Re-remove KHX variants of KHR structure types after promotion (internal
issue 762).
* Bump API patch number and header version number to 46 for this update.
Github Issues:
* Add language to the <<fundamentals-validusage-enums, Valid Usage for
Enumerated Types>> section allowing values to be returned from Vulkan
that are not present in extensions explicitly enabled by the
application, similar to existing language for bit flags in the
<<fundamentals-validusage-flags, Valid Usage for Flags>> section (public
issue 442).
* *Important*: run `gem update --pre asciidoctor-pdf` before trying to
build this version of the spec - 1.5.0.alpha15 is required for this
change. Removes the monkey patch currently used to draw valid usage
blocks across multiple pages which had numerous issues. A fixed version
was incorporated into Asciidoctor-PDF for the latest release, so the
monkey patch or any variant thereof is no longer required (public issue
465).
Internal Issues:
* Add ename:VK_DEBUG_REPORT_OBJECT_TYPE_DESCRIPTOR_UPDATE_TEMPLATE_KHR_EXT
to `VK_EXT_debug_report` extension
* Fix ptext:pNext member of
slink:VkPhysicalDeviceDiscardRectanglePropertiesEXT to be a non-const
pointer. Properties structures return values, so the chain should be
non-const.
* Explicitly remove gl_NumSamples from the `GL_KHR_vulkan_glsl` extension,
against 1.0 (internal issue 612).
* Add Valid Usage statements requiring that each structure type valid in a
ptext:pNext chain must: not appear more than once in a chain (internal
issue 752).
* Use ename:VK_USE_PLATFORM_WIN32_KHX in the
`VK_KHX_external_memory_win32` extension, rather than etext:_KHR
(internal issue 754).
New Extensions:
* `VK_KHR_incremental_present`
* Bump API patch number and header version number to 45 for this update.
Github Issues:
* Defined the lifetime of the memory pointed to by
slink:VkDisplayPropertiesKHR::pname:displayName to be equal to that of
its associated display handle (public issue 460).
* Correct several cases where the sparse memory feature name
pname:residencyNonResidentStrict was written as
pname:sparseResidencyNonResidentStrict (public issue 475).
Internal Issues:
* Fix ptext:pNext member of slink:VkPhysicalDeviceGroupPropertiesKHX to be
a non-const pointer. Properties structures return values, so the chain
should be non-const.
* Clarify definition of memory aliasing to consistently use the terms
"linear" and "non-linear" when referring to resources, and define what
those terms mean.
* Modified XML schema and implicit validity scripts to generate language
for all ptext:pNext values in a ptext:pNext chain instead of just the
top level struct, and made `noautovalidity` functional for ptext:sType
and ptext:pNext (internal issue 535).
* Add more detail for BT2020 and scRGB color spaces in
`VK_EXT_swapchain_colorspace` extension (internal issue 632).
* Add naming rules for Extension Structure Names (structures added to the
ptext:pNext chain of a base structure) to the style guide (internal
issue 706).
* Define the glossary term "ptext:pNext chain", and use it consistently in
the spec (internal issue 744).
New Extensions:
* Bump API patch number and header version number to 44 for this update.
Github Issues:
* Fix description of <<features-extentperimagetype, Allowed Extent Values
Based On Image Type>> (public issue 290).
* Better specify VK_DEVICE_LOST behavior around flink:vkQueueSubmit,
flink:vkWaitForFences, and flink:vkGetFenceStatus (public issue 423).
* Clarify definition of flink:vkGetQueryPoolResults::pname:queryCount
(public issue 441).
* Simplify and clean up normative language. Remove shall and replace
recommend and variants with should wherever possible (public issue 448).
* Fix all dangling internal cross-references in the 1.0-extensions
specification, and add scripts/checkXrefs to find these in the future
(public issue 456).
* Reverse order of ChangeLog.txt entries so the most recent version is
documented first (public issue 463)
* Removes "become invalid" which clashes with invalid state for command
buffers. (public issue 467)
* Disallowed pending state in spec text for vkResetCommandBuffer, matching
valid usage (public issue 468)
* Removes sentence describing invalid state "like initial state". (public
issue 469)
* Disallows begin command buffer from resetting command buffers in the
"recording" state. (public issue 470)
* Removes mention of state from description of
VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT (public issue 471)
* Removed extra valid usage statement in VkSubmitInfo (public issue 472)
Internal Issues:
* Clarify description of the pname:imageLayout member of
sname:VkDescriptorImageInfo.
* Fix typos where etext:VK_VIEW_TYPE* was used instead of
etext:VK_IMAGE_VIEW_TYPE.
* Removed the <<VK_KHR_display>> and <<VK_KHR_display_swapchain>> example
code from the specification and noted it has been moved to the Vulkan
SDK cube demo (internal issue 179).
* Reorder VkExternalMemoryHandleTypeFlagBitsNV description (internal issue
480).
* Clarify than an implementation is
<<fundamentals-validusage-flags,permitted to return 'undefined' bit
flags>> in a bitfield (internal issue 640).
* Break Valid Usage statements describing unrelated parameters into
separate statements, and add a style guide entry to follow this approach
(internal issue 685).
* Move valid usage statement for slink:VkImageCreateInfo from spec body to
the explicit valid usage block (internal issue 693).
* Fix typos in the descriptions of slink:VkDisplaySurfaceCreateInfoKHR,
flink:vkCreateDisplayModeKHR, and
flink:vkGetDisplayPlaneSupportedDisplaysKHR in the <<display,Presenting
Directly to Display Devices>> section (internal issue 698, 704, 716).
* Clarified that mandatory depth/stencil formats are only a requirement
for 2D images (internal issue 719).
* Clarify that variables decorated with DeviceIndex/ViewIndex must be in
the Input storage class (internal issue 733).
* Work around generator script problem with removal of Unicode literals
from Python 3.0-3.2 using `future` package (internal issue 737).
* Remove nonexistent structure type enums from vk.xml (internal issue
738).
* Fix validextensionstructs attributes for structures in the pname:pNext
chain for VkPresentInfoKHR, fixing implicit valid usage statements for
those structures (internal issue 740).
New Extensions:
* Bump API patch number and header version number to 43 for this update.
Github Issues:
* Make clearer that color write mask is applied regardless of whether
blending is enabled, by referring to the
<<framebuffer-color-write-mask,Color Write Mask>> section (public issue
241).
* Fix public issue 414:
** Added two new command buffer states (invalid, pending), and an explicit
"command buffer lifecycle" section to explain them.
** Replaced "pending execution" with "in the pending state".
** Replaced a bunch of "this will invalidate the command buffer" language
with "this will move the command buffer to the invalid state", and added
validation language for what state those command buffers should be in.
** Added additional validation language about what state a command buffer
should be in for various commands that affect it.
** Added invalidation language to destroy commands in the lifetimes section
of fundamentals.
** Added command buffers to list of objects which must not be deleted
whilst a (primary) command buffer is in the recording or pending state.
* Update `GL_KHR_vulkan_glsl` extension to allow anonymous push constant
blocks (public issue 428).
Internal Issues:
* Document rules about extension interactions in the style guide (internal
issue 579).
* Require ename:VK_PRESENT_MODE_MAILBOX_KHR support in queries of surfaces
created with flink:vkCreateWaylandSurfaceKHR using the
VK_KHR_wayland_surface extension (internal issue 666).
* Remove Valid Usage constraints for flink:vkAllocateDescriptorSets when
the `VK_KHR_maintainance1` extension is present (internal issue 686).
* Remove undocumented KHX-variants of vkGetPhysicalDeviceProperties2KHR
and vkGetPhysicalDeviceImageFormatProperties2KHR from the
<<VK_KHX_external_memory_capabilities>> and
<<VK_KHX_external_semaphore_capabilities>> extensions.
New Extensions:
* `VK_EXT_hdr_metadata`
* `VK_GOOGLE_display_timing`
* Bump API patch number and header version number to 42 for this update
(the first anniversary edition).
Github Issues:
* Changed asciidoctor macros so cross-page links in the standalone
reference pages function properly (public issue 462).
Internal Issues:
* Clarified host visibility discussion for slink:VkMemoryType,
flink:vkInvalidateMappedMemoryRanges, elink:VkAccessFlagBits, and the
<<synchronization-framebuffer-regions,Framebuffer Region Dependencies>>
section, removing duplicated information and adding a central definition
in the access types section (internal issue 552).
* Change description of
slink:vkGetPhysicalDeviceSurfacePresentModesKHR::pname:pPresentModes to
return an array of values, not structures (internal issue 699).
New Extensions:
* Add a NOTE to the <<extensions,Layers & Extensions>> chapter describing
the experimental status of `KHX` extensions.
* Add new Khronos, Khronos Experimental, and vendor Vulkan extensions for
release at GDC:
** VK_KHR_descriptor_update_template
** VK_KHR_push_descriptor
** VK_KHX_device_group
** VK_KHX_device_group_creation
** VK_KHX_external_memory
** VK_KHX_external_memory_capabilities
** VK_KHX_external_memory_fd
** VK_KHX_external_memory_win32
** VK_KHX_external_semaphore
** VK_KHX_external_semaphore_capabilities
** VK_KHX_external_semaphore_fd
** VK_KHX_external_semaphore_win32
** VK_KHX_multiview
** VK_KHX_win32_keyed_mutex
** VK_EXT_discard_rectangles
** VK_MVK_ios_surface
** VK_MVK_macos_surface
** VK_NVX_multiview_per_view_attributes
** VK_NV_clip_space_w_scaling
** VK_NV_geometry_shader_passthrough
** VK_NV_sample_mask_override_coverage
** VK_NV_viewport_array2
** VK_NV_viewport_swizzle
* Add new GLSL vendor extensions to support new builtin variables:
** GL_EXT_device_group
** GL_EXT_multiview
* Bump API patch number and header version number to 41 for this update.
Github Issues:
* Made all uses of `NULL` vs. code:VK_NULL_HANDLE consistent (public issue
276).
* Clarify render pass compatibility in different usage scenarios (public
issues 303 and 304).
* Add valid usage statements to slink:VkFramebufferCreateInfo requiring
that the width, height, and number of layers of the framebuffer all be
nonzero (public issue 432).
* Allow `offset` and `align` in any GLSL version for the
`GL_KHR_vulkan_glsl` extension (public issue 435).
* Specify lifetime of string objects passed to the
tlink:PFN_vkDebugReportCallbackEXT user callback in the
+VK_EXT_debug_report+ extension (public issue 446).
* Fix inter-page links in multi-file reference pages (public issue 454).
Internal Issues:
* Update valid usage language for slink:VkImageCreateInfo to disallow
creating images that have ename:VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT
set without other attachment usage bits
(ename:VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT,
ename:VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT, or
ename:VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT) (internal issue 540).
* Disable `VK_EXT_swapchain_colorspace` extension until internal issues
640 and 661 are mutually resolved.
* Allow alternative mipmap level selection when [eq]#lambda == 0.5# during
texture <<textures-image-level-selection,Image Level(s) Selection>>
(internal issue 680).
Other Issues:
* Add a clarification to the style guide that the extension revision
number is treated as a patch number, so that changes to published
extensions should only include bug fixes and spec clarifications.
* Bump API patch number and header version number to 40 for this update.
* There is a major build change in this release. We are now using the
Ruby-based ``asciidoctor'' implementation, rather than the Python-based
``asciidoc'' implementation, to process the specification. While the
actual specification markup changes were minimal, this requires a new
set of build tools and a very different installation process, especially
because we now use an experimental direct-to-PDF backend for Asciidoctor
instead of Docbook->dblatex->PDF. It is no longer possible to build the
Specification using asciidoc. See doc/specs/vulkan/README.adoc
for some guidance on installing the new toolchain components.
* There are some minor rendering issues in the PDF output due to teething
problems with the asciidoctor toolchain, especially with mathematical
equations. We are aware of these and working on them.
Github Issues:
* Updated sample code for the <<sparsememory-examples-basic,sparse
resource binding example>> (public issue 97).
* Modify line and point clipping behavior in the
<<vertexpostproc-clipping, Primitive Clipping>> section to allow for
pop-free behavior. The ability to check for which behavior is
implemented may be added a future feature or extension (public issue
113).
* Unify the discussions of implicit ordering throughout the spec, in
particular in the new sections <<drawing-primitive-order, Primitive
Order>>, <<primrast-order, Rasterization Order>>, and
<<synchronization-implicit, Implicit Synchronization Guarantees>>; the
discussion of <<synchronization-submission-order, submission order>>;
and references elsewhere to these sections (public issue 133).
* Clarify \<\<descriptorsets-compatibility,Pipeline Layout Compatibility>>
language and introduce the term ``identically defined'' (public issue
164).
* Add a dependency to the +VK_EXT_debug_marker+ extension that's needed to
reuse the object type enum from +VK_EXT_debug_report+, and moves the
definition of that enum into +VK_EXT_debug_report+ where it should be
(public issue 409).
* Remove redundant valid usage statement from slink:VkImageBlit (public
issue 421).
* Update GL_KHR_vulkan_glsl to allow the ternary operator to result in a
specialization constant (public issue 424).
* Fix valid usage for flink:VkPipelineShaderStageCreateInfo (public issue
426).
* Correct typo in New Objects list for <<VK_EXT_debug_report>> (public
issue 447).
Internal Issues:
* Moved to asciidoctor for spec builds (internal issue 121).
* Update style guide to describe where to put new extensions-specific
asciidoc files, and what to name them (internal issue 626).
* Add src/spec/indexExt.py to autogenerate registry index entries linking
into the 1.0-extensions specification, instead of maintaining the index
manually. (internal issue 642).
* Autogenerate extension dependencies and lists of all extensions and all
KHR extensions from the "supported" attributes in +vk.xml+. Execute
+make config/extDependency.sh+ from +doc/specs/vulkan+ when a supported
extension is added to vk.xml, to regenerate the dependency script. The
consequence is that specifying a single extension to the +makeExt+
script will automatically enable all extensions it depends on as well,
and that the +makeAllExts+ and +makeKHR+ scripts do not need to be
updated when a new extension is supported (internal issue 648).
* Put extension appendices all at the same asciidoc section level, so KHR
WSI extensions show up in the HTML index (internal issue 648).
Other Issues:
* Imbed images in the generated HTML specs instead of loading them from
the images/ directory.
* Fix missing EXT in extension name
(ename:VK_EXT_SWAPCHAIN_COLOR_SPACE_EXTENSION_NAME).
* Add new +VK_EXT_SMPTE_2086_metadata+ extension.
* In the <<platformCreateSurface_xlib,Xlib Surface>> section of the
+VK_KHR_xlib_surface+ specification, add language warning users that
they always need to call code:XinitThreads.
* Use the term "presentable image" (rather than "swapchain image")
consistently in +VK_KHR_swapchain+ and related extensions, and add a
glossary term defining it.
* Relocate the valid usage for samples of
flink:vkGetPhysicalDeviceSparseImageFormatProperties2KHR::pname:pFormatInfo
to be below the flink:VkPhysicalDeviceSparseImageFormatInfo2KHR
structure.
* Bump API patch number and header version number to 39 for this update.
Github Issues:
* Clarified that only accesses via the specified buffer/image subresource
ranges are included in the access scopes (public issue 306).
* Add missing valid usage statements for flink:vkCreateComputePipelines
and flink:vkCreateGraphicsPipelines (public issue 427).
Internal Issues:
* Add a Note to the <<invariance,Invariance>> appendix about a difference
between OpenGL and Vulkan with regards to how primitives derived from
offsets are handled (internal issue 355).
* Add the +<<VK_KHR_get_physical_device_properties2>>+,
+<<VK_KHR_maintenance1>>+, and +<<VK_KHR_shader_draw_parameters>>+
extensions (internal issue 448).
* Add the +<<VK_EXT_shader_subgroup_vote>>+ and
+<<VK_EXT_shader_subgroup_ballot>>+ extensions (internal issue 449).
* Update the texture level-of-detail equation in the
<<textures-scale-factor,Scale Factor Operation>> section to better
approximate the ellipse major and minor axes (internal issue 547).
* Forbid non-explicitly allowed uses of interface decorations in the
introduction to the <<interfaces,Shader Interfaces>> chapter (internal
issue 607).
* Replace use of MathJax with KaTeX, for improved load-time performance as
well as avoiding the scrolling-and-scrolling behavior due to MathJax
asynchronous rendering when loading at an anchor inside the spec. This
change also requires moving to HTML5 output for the spec instead of
XHTML, and there is a visible difference in that the chapter navigation
index is now in a scrollable sidebar instead of at the top of the
document. We may or may not retain the nav sidebar based on feedback
(internal issue 613).
* Improve consistency of markup and formatting in extension appendices
(internal issue 631).
Other Issues:
* Add explicit valid usage statements to slink:VkImageCopy requiring that
the source and destination layer ranges be contained in their respective
source and destination images.
* Add valid usage language for swapchain of flink:vkAcquireNextImage. If
the swapchain has been replaced, then it should not be passed to
flink:vkAcquireNextImage.
* Add a valid usage statement to flink:vkCreateImageView, that the image
must have been created with an appropriate usage bit set.
* Noted that slink:VkDisplayPresentInfoKHR is a valid extension of
slink:VkPresentInfoKHR in the <<wsi_swapchain,WSI Swapchain>> section.
* Update valid usage for flink:vkCmdSetViewport and flink:vkCmdSetScissor
to account for the multiple viewport feature. If the feature is not
enabled, the parameters for these functions have required values that
are defined in the <<features-features-multiViewport,multiple
viewports>> section of the spec but were not reflected in the valid
usage text for these functions.
* Add the +<<VK_EXT_swapchain_colorspace>>+ extension defining common
color spaces.
* Bump API patch number and header version number to 38 for this update.
Github Issues:
* Make ename:VK_PIPELINE_STAGE_HOST_BIT invalid for all stage masks,
except for flink:vkCmdWaitEvents (public issue 261).
Internal Issues:
* Added validation language for flink:vkQueueBindSparse,
slink:VkPresentInfoKHR, and slink:VkSubmitInfo, and a note to the
<<synchronization-semaphores-waiting,Semaphore Waiting and Unsignaling>>
section to clarify that semaphores must be signaled and waited on in a
1:1 fashion (internal issue 546).
* Modify valid usage for slink:VkBufferImageCopy to only require
pname:bufferOffset to be a multiple of the image format's element size
when the format is not depth/stencil (internal issue 594).
Other Issues:
* Vulkan(R) is now a registered trademark symbol, and this is reflected in
documents and copyright statements.
* Bump API patch number and header version number to 37 for this update.
Github Issues:
* Add usability guarantees on the values returned by
flink:vkGetPhysicalDeviceSurfaceCapabilitiesKHR in the
slink:VkSurfaceCapabilitiesKHR structure and by
flink:vkGetPhysicalDeviceSurfaceFormatsKHR in the
pname:pSurfaceFormatCount parameter (public issue 385).
* Add elink:VkDebugReportObjectTypeEXT enumerants for new object types
introduced by new extensions (public issue 408).
* Add +VK_NVX_device_generated_commands+ etext:ACCESS bits and define how
they are used (public issue 415).
* Fix indentation for slink:VkDebugReportCallbackCreateInfoEXT member
descriptions (public issue 419).
Internal Issues:
* Expand requirements memory binding of non-sparse images and buffers from
the <<resources-association,Resource Memory Association>> section into
valid usage statements for all of the applicable API calls (internal
issue 508).
* Explicitly state that valid usage of flink:vkCreateImage requires that
flink:vkGetPhysicalDeviceImageFormatProperties would return
ename:VK_SUCCESS for the requested image configuration (internal issue
598).
* Bump API patch number and header version number to 36 for this update.
Github Issues:
* Fix "recorded with" terminology in the valid usage language for the
flink:vkCmdExecuteCommands::pname:pCommandBuffers parameter (public
issue 390).
* Modify +genvk.py+ to support specifying extensions to remove from output
generators, allowing the extension loader +vulkan_ext.c+ to be created
without WSI extensions which are statically exported by the Vulkan
loader (public issue 412).
* Added validation language for slink:VkSubpassDependency and in the
<<synchronization-access-types-supported,supported access types>>
section to catch access masks that include bits which are not supported
by pipeline stages in the stage masks (partially addresses public issue
1006).
Internal Issues:
* Added validation language for flink:vkCmdWaitEvents,
flink:vkQueueSubmit, flink:VkRenderPassCreateInfo, and in the
<<synchronization-pipeline-stages-supported>> section to prevent
recording stage dependencies that aren't supported on the queue
(internal issue 516).
* Make a few changes that generalize spec language for use with possible
future extensions by adding glossary terms and generalizing ``feature''
to ``feature or extension'' where relevant (internal issues 448, 590).
* Added "pipeline type" attribute to +vk.xml+ for relevant commands and
utilize it in automatic generation of the Command Properties table
(internal issue 517).
* Specify that WSI implementations must provide both UNORM and sRGB
formats in the description of slink:VkColorSpaceKHR (internal issue
529).
* Remove nesting of explicit valid usage statements where it is not
meaningful (internal issue 583).
Other Issues:
* Add validity language requiring that
slink:VkPushConstantRange::pname:offset be a multiple of 4, as stated in
the spec language.
* Bump API patch number and header version number to 35 for this update.
Github Issues:
* Document in the <<memory-device-hostaccess,Host Access>> section that
mapping and unmapping does not invalidate or flush the mapped memory
(public issues 27, 126).
* Redefine the entire <<synchronization>> chapter in terms of consistent
and well defined terminology, that's called out at the start of the
chapter. This terminology is applied equally to all synchronization
types, including subpass dependencies, submissions, and much of the
implicit ordering stuff dotted around the spec. Key terms are laid out
in the <<synchronization-dependencies,Execution and Memory
Dependencies>> section at the top of the rewritten chapter (public
issues 128, 131, 132, 217, 299, 300, 302, 306, 322, 346, 347, 371, 407).
* Specify order of submission for batches in the
<<vkQueueSubmit,vkQueueSubmit>> and
<<vkQueueBindSparse,vkQueueBindSparse>> commands (public issue 371).
* Add valid usage statements to each of the WSI extension sections
indicating that the WSI-specific structure parameters must be valid, and
remove automatically generated valid usage statements now covered by the
manual sections (public issue 383).
* Clarify render pass compatibility for flink:vkCmdExecuteCommands (public
issue 390).
Internal Issues:
* Update +vk.xml+ to make previously explicit valid usage statements for
<<vkDebugReportMessageEXT,vkDebugReportMessageEXT>> implicit instead
(internal issue 553).
* Add valid usage statement for slink:VkCreateImageInfo preventing
creation of 1D sparse images (internal issue 573).
* Fix Python scripts to always read/write files in utf-8 encoding, and a
logic error in reflib.py which could cause a fatal error for
malstructured asciidoc (internal issues 578, 586).
* Bump API patch number and header version number to 34 for this update.
Github Issues:
* Allow vkUpdateDescriptorSets overflow to skip empty bindings. Clarify
that unused bindings have a descriptorCount of zero. Improve some valid
usage for vkUpdateDescriptorSets (public issue 256).
* Require that slink:VkImageSubresourceRange always define a non-empty
range of the resource (public issue 303).
* Added valid usage for slink:VkPresentInfoKHR on the layout of presented
images (public issue 397).
Internal Issues:
* Add dependency in src/spec/Makefile so specversion.txt is regenerated
when needed (internal issue 462).
* Shorten the table of contents in the single-page ref page HTML output.
Still working on the PDF (internal issue 536).
* Bump API patch number and header version number to 33 for this update.
Github Issues:
* Added implicit external synchronization parameters to
vkBegin/EndCommandBuffer, and fixed missing command pool host
synchronization from per-command lists (public issue 398).
* Started using git tags including the spec release number, such as
'v1.0.32-core', instead of tags including the date of release, such as
'v1.0-core-20161025' (public issue 405).
Internal Issues:
* Add validity constraint for
slink:VkImportMemoryWin32HandleInfoNV::pname:handle (internal issue
#480).
* Add scripts to compare two Vulkan HTML specifications, derived from W3
htmldiff service (internal issue 525).
* Relax requirement that memoryTypeBits can't depend on format, to allow
it to differ only for depth/stencil formats (internal issue 544).
* Add a new generator script to create a simple extension loader for
Vulkan based on +vk.xml+ (internal issue 558).
* Add the overlooked requirement that buffer and image memory
alignment requirements must be a power of two in the
<<resources-association,Resource Memory Association>> section
(internal issue 569).
Other Issues:
* Add a naming rule to the style guide for members of extension structures
defining array lengths which are the same as array lengths of the core
structure they are chained from.
* Add a new generator to create a simple extension loader in
+src/ext_loader/vulkan_ext.[ch]+ from +vk.xml+. This code can be
included in your project, and is expected to be packaged in the Vulkan
SDK provided by LunarG in the future.
* Bump API patch number and header version number to 32 for this update.
Github Issues:
* Add automatic visibility operations to the presentation engineE when
doing a queue present in flink:vkAcquireNextImageKHR. Removed all
references to MEMORY_READ that referenced WSI - they no longer make
sense (some aspects of public issues 128, 131, 132, 261, and 298).
* Document valid non-boolean +externsync+ attribute values for <param>
tags in +vk.xml+ (public issue 265).
* Add valid usage to slink:VkImageCreateInfo requiring that
pname:arrayLayers be 1 for images of type ename:VK_IMAGE_TYPE_3D
(public issue 319).
* Add missing captions to figures in the <<textures,Image Operations>>
chapter (public issue 334).
* Clarify WSI interaction with exclusive sharing mode (public issue
344).
* Added explicit language clarifying the allowed queue usage of
resources created with ename:VK_SHARING_MODE_CONCURRENT (public
issue 386).
* Require that the
slink:VkDescriptorSetLayoutCreateInfo::pname:binding members of the
pname:pBindings array passed to
flink:vkDescriptorSetLayoutCreateInfo all be distinct (public issue
391).
Internal Issues:
* Remove empty validity blocks from +vk.xml+ and suppressed broken
validity statements and added missing statements to explicit
validity. Doesn't affect output, other than some statements
appearing in another block now (internal issue 513).
* Bump API patch number and header version number to 31 for this update.
Github Issues:
* Clarifying wording of slink:VkGraphicsPipelineCreateInfo parameters and
adding Valid Usage statements on render pass compatibility to the
<<drawing,drawing commands>> (public issue 375).
* Replace 'texel size' with 'element size', and add a definition to the
glossary (public issue 382).
* Clarify the description of ename:VK_ERROR_NATIVE_WINDOW_IN_USE_KHR to
make it accurate, but still generic (non-exhaustive). Remove two Valid
Usage statements describing error situations that will return
ename:VK_ERROR_NATIVE_WINDOW_IN_USE_KHR (public issue 387).
* Fix refBegin tag for elink:VkDebugReportFlagBitsEXT (public issue 392).
* The <<interfaces-builtin-variables,built-in variable>> code:PrimitiveId
in a fragment shader needs the code:Input storage class (public issue
393).
Internal Issues:
* Unused ({y,z} and {height,depth} for 1D, z and depth for 2D) offsets
must be 0 and unused extents must be 1. Added basic offset and extent
valid usage for slink:VkImageResolve to match that of slink:VkImageCopy
(internal issue 413).
* Describe what flink:vkGetPhysicalDeviceImageFormatProperties returns for
pname:sampleCounts when for pname:usage only includes transfer-related
flags (internal issue 478).
* Remove mention of
slink:VkPhysicalDeviceLimits::pname:maxImageArrayLayers from the valid
usage for slink:VkImageCreateInfo::pname:arrayLayers (internal issue
520).
* Tag usages of ``dynamically uniform'' as glossary terms and add a
glossary entry pointing to the SPIR-V Specification's definition of the
term (internal issue 531).
* Bump API patch number and header version number to 30 for this update.
Github Issues:
* Document missing pname:sType and pname:pNext parameters for
slink:VkCommandBufferInheritanceInfo (public issue 224).
* As promised, we are removing the example code, from the appendix, for
the VK_KHR_surface and VK_KHR_swapchain extensions. The cube demo
(shipped in the official Khronos SDK) has been updated, and is the
example code that we want people to look at for how to use these two
extensions (public issues 279, 308, and 311).
* Clarify the formats for which the slink:VkClearColorValue pname:float32
member is used. Also clean up related language for flink:vkCmdBlitImage
(public issue 369).
* Reword the <<invariance, Invariance>> appendix chapter to better match
Vulkan terminology (public issue 372).
Internal Issues:
* Update slink:VkMemoryRequirements to not require a host_visible memory
type exists that can be bound to sparse buffers (internal issue 494).
* Modify the <<features-supported-sample-counts,Supported Sample Counts>>
language to allow multisampled depth-stencil images (internal issue
521).
* Bump API patch number and header version number to 29 for this update.
Github Issues:
* Remove redundant constraint on
slink:VkCommandBufferInheritanceInfo::pname:queryFlags (public issue
224).
* Fix typo and remove link in Note in the
<<extended-functionality-instance-extensions-and-devices, Instance
Extensions and Device Extensions>> section (public issue 359).
* Fix erroneous validation statement for the pname:layout member of
slink:VkComputePipelineCreateInfo (public issue 362).
Internal Issues:
* Restore long figure captions using asciidoc sidebar blocks, due to
restrictions of asciidoc syntax (internal issue 101).
* Replace most latexmath equations with comparable markup in straight
asciidoc, which significantly improves time required to fully load and
process the HTML forms of the Specification. There are known minor font
and alignment inconsistencies with MathJax and PDF rendering of
latexmath equations. Please do not file github issues about these. We
are aware of the inconsistencies and will make refinements over time,
while the performance improvements are compelling in at least some major
browsers (internal issue 313).
* Move handcoded validity statements from +vk.xml+ into the Specification
body, easing work in the single-branch model. Specify the distinction
between these explicit statements, and the implicit validity statements
inferred from vk.xml. Validity statements now appear in two blocks for
each command and structure - handcoded "Valid Usage" and the implicit
"Valid Usage (Implicit)" (internal issue 392).
* Add the +returnedonly="false"+ attribute to WSI output structures,
removing incorrectly generated implicit validity statements for
slink:VkDisplayPropertiesKHR, slink:VkDisplayPlanePropertiesKHR,
slink:VkDisplayModePropertiesKHR, slink:VkDisplayPlaneCapabilitiesKHR,
slink:VkSurfaceCapabilitiesKHR, and slink:VkSurfaceFormatKHR structures
(internal issue 486).
* Update slink:VkImageLayout to require the
ename:VK_IMAGE_USAGE_SAMPLED_BIT be set for sampled depth/stencil images
(internal issue 487).
* Use an explicit format specifier string for the date command invocation
in the +Makefile+ instead of the shorthand -R option, which doesn't work
on BSD and MaxOS X date commands (internal issue 500).
Other Issues:
* Use the terms ``allocation scope'' and ``extension scope'' instead of
just ``scope'', and add them to the glossary.
* Bump API patch number and header version number to 28 for this update.
Github Issues:
* Minor spelling and typography cleanup, add definitions of
ename:VK_FALSE and ename:VK_TRUE as just what their names say
(public issues 220, 318, 325, 365; internal issues 451, 496)
* Clarify that the pname:maxDescriptorSet limits in the
<<features-limits-required,Required Limits>> table are n *
maxPerStage limit (where n=number of supported stages) (public issue
254).
* Minor cleanup to <<boilerplate-platform-macros,Platform-Specific
Macro Definitions>> appendix (public issue 314).
* Add valid usage statement to slink:VkPipelineLayoutCreateInfo
disallowing multiple push constant ranges for the same shader stage
(public issue 340).
* Clarify the elink:VkSharingMode description of what executing the
"same" barriers means in case of ownership transfer (public issue
347).
* Rename copyright.txt and add COPYING.md to try and reduce confusion
about applicable copyrights (public issue 350).
* Extend the table in the <<boilerplate-wsi-header, Window System-Specific
Header Control>> section to describe the external headers included when
each etext:VK_USE_PLATFORM_* macro is defined (public issue 376).
Internal Issues:
* Add "Revision History" to the PDF outputs following the table of
contents, to match HTML outputs (internal issue 43).
* Clarified that flink:vkMapMemory may fail due to virtual address
space limitations (internal issue 346).
* Add +refBody+ comment markup for ref page autoextraction when required
(internal issue 400).
* Document proper use of "mipmap" and "mip" in the style guide API
naming rules, matching the spelling rules (internal issue 471).
* Tweak the <<extensions,Layers and Extensions>> appendix to note that
the Specification may be built with arbitrary combinations of
extensions (internal issue 483).
* Remove incorrect statement allowing
slink:VkClearAttachment::pname:colorAttachment to be >=
slink:VkSubpassDescription::pname:colorAttachmentCount (internal
issue 488).
* The <<features-limits-viewportboundsrange,viewportBoundsRange>> is
expressed in terms of the pname:maxViewportDimensions but this is
actually two values. Clarify that it's based on the larger of the two
(if they differ) (internal issue 499).
Other Issues:
* Reflowed text of the entire spec using the 'reflow' Makefile gater,
to (hopefully) reduce future internal git churn as edits are made
and extensions added in return for one-time pain. This has no
perceptible change on the spec outputs but considerable changes on
the asciidoc source (internal issue 367).
* Bump API patch number and header version number to 27 for this update.
Github Issues:
* Weaken flink:vkGetPipelineCacheData invariance conditions; previous
conditions were stronger than agreed and can't be guaranteed (public
issue 280).
* Add link to "Vulkan Loader Specification and Architecture Overview"
document to Normative References section (public issue 359).
Internal Issues:
* Be more clear in the <<interfaces-resources-layout-std140, uniform
buffer layout>> section that block offsets can be out of order
(internal issue 396).
* Document that extension authors should add support for their extensions
to the validation layers (internal issue 398).
* Clarify that the valid range of depth clear values should be limited
to the 0..1 range and that copies to depth aspect must also be in this
range (internal issue 412).
* Specify ``a'' vs. ``an'' use in the style guide (internal issue 432).
* Increase the maximum pname:nonCoherentAtomSize value in the
<<features-limits-required,Required Limits>> section from 128 to 256
(internal issue 435).
* Fix vk_platform.h for compiler errors on some Android platforms
(internal issue 441).
* Clarify that slink:VkPhysicalDeviceFeatures::pname:pEnabledFeatures ==
`NULL` disables all features, including the "required" feature
pname:robustBufferAccess (internal issue 479).
Other Issues:
* Expand style guide and make it more self-consistent.
* Use ISO 8601 date format everywhere.
* Emphasise the correct way of using
slink:VkSurfaceCapabilitiesKHR::pname:maxImageCount.
* Added +VK_EXT_validation_flags+ extension for validation flag mechanism.
* Fix an <<credits,author credit>> to include their current employer.
* Bump API patch number and header version number to 26 for this update.
Github Issues:
* Bring sample code in the +VK_KHR_surface+ and +VK_KHR_swapchain+
extension summary appendices up to date, and note they will be replaced
with pointers to the LunarG SDK examples in the future (public issue
279).
* Add a new <<fundamentals-commandsyntax-results-lifetime,Lifetime of
Retrieved Results>> section specifying that ftext:vkGet* and
ftext:VkEnumerate* results are invariant unless otherwise specified, and
specify behavior for individual commands which are not invariant (public
issue 280).
* Remove conflicting definition of
slink:VkDisplayPlaneCapabilitiesKHR::pname:maxSrcPosition and clean up
language of the remaining definition (public issue 351).
* Fix many minor spelling errors and add rules to the style guide to
prevent recurrences (public issue 352).
Internal Issues:
* Remove redundant descriptions of the etext:VK_USE_PLATFORM_* macros from
the <<wsi,Window System Integration>> chapter in favor of the
description in the <<boilerplate-wsi-header,Window System-Specific
Header Control>> appendix (internal issue 6).
* Replace misleading 'can: be destroyed when not X' with more correct
'must: not be destroyed while X' in the
<<fundamentals-objectmodel-lifetime,Object Lifetime>> section. Disallow
destroying a pipeline layout while a command buffer using it is
recording (internal issue 241).
* Clarify that ename:VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT is valid for
all images used as attachments in elink:VkImageUsageFlagBits and the
slink:VkImageLayout validity language (internal issue 320).
* Note that <<extended-functionality-layers,Layers>> may wrap object
handles, but that this is a generally discouraged. A link to additional
information in the documentation for layer authors is provided (issue
398)
* Replace the mustnot: and shouldnot: macros with equivalent must: not and
should: not to get rid of non-English words while still highlighting
normative language (internal issue 407).
* Disallow creating multisampled images with
ename:VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT in the slink:VkImageLayout
validity language and the <<features-supported-sample-counts,Supported
Sample Counts>> section (internal issue 445).
* Fix typo so that flink:vkCmdDrawIndexedIndirect is defined in terms of
flink:vkCmdDrawIndexed rather than flink:vkCmdDrawIndirect (internal
issue 446).
* Reorganize the per-extension information sections to all be in the
<<extensions,Layers & Extensions>> appendix. Also fix a typo in
+VK_IMG_filter_cubic+ which incorrectly identified it as a +KHR+
extension (internal issue 461).
Other Issues:
* Use asciidoc markup instead of latexmath to simplify diagrams in the
<<features-formats-non-packed,byte mapping tables>> for color formats.
* Fix a markup problem with the wildcarded enumerant names in a NOTE in
the <<textures-texel-replacement,Texel Replacement>> section.
* Fix missing attributes in the XML interface for
elink:VkExternalMemoryHandleTypeFlagBitsNV and
elink:VkExternalMemoryFeatureFlagBitsNV (KhronosGroup/Vulkan-Hpp issue
#25)
* Cleanup reference page builds so only core pages are built for releases.
* Bump API patch number and header version number to 25 for this update.
* Structurally change the specification so that multiple extensions are
included in the +1.0+ git branch, and specifications will include or not
include those extensions at build time based on options passed to the
Makefile. See +doc/specs/vulkan/README.html+ and the ``Layers and
Extensions'' section of the ``Vulkan Documentation and Extensions''
document for more information on this change.
* Register and publish new extensions in the single-branch form:
** +VK_NV_external_memory_capabilities+
** +VK_NV_external_memory+
** +VK_NV_external_memory_win32+
** +VK_NV_win32_keyed_mutex+
Github Issues:
* Clarify description of GetInstanceProcAddr and GetDeviceProcAddr (public
issue 212).
* Add SPIR-V <<textures-operation-validation, instruction validation>> for
single-sampled images (public issue 316).
* Fix spelling of ``tesselation'' in a few places and note it as an
exception to the American spelling rules convention (public issue
327).
* Fix Makefile to create output directory for ``styleguide''
target (public issue 329).
* Fix numerous minor issues with incorrectly tags on enumerant names and
table titles (public issue 330).
* Generate specversion.txt date in UTC time and RFC 2822 format
(public issue 335).
* Convert link to the SPIR-V Specification for
flink:VkShaderModuleCreateInfo into an internal link to the normative
reference (public issue 336).
* Add ename:VK_ERROR_OUT_OF_MEMORY error code to
flink:vkCreateDebugReportCallbackEXT (public issue 337).
Internal Issues:
* Update style guide regarding use of code:NULL and dname:VK_NULL_HANDLE
(internal issue 393).
* Change the definition of latexmath:[$q$] in the
<<textures-image-level-selection,texture image level selection>> section
to be the index of the maximum defined level for the view, not the
number of levels in the view (internal issue 406).
* Allow developers to override dname:VK_DEFINE_NON_DISPATCHABLE_HANDLE
with their own binary-compatible definition (internal issue 439).
* Fix +vk_platform.h+ conditional logic causing compile failure with some
Android compilers (internal issue 441).
* Implement the single-branch model as described above (internal issue
461).
Other Issues:
Petr Kraus
Jon Leech
Jon Leech
tomaka
Dennis Hamester