mirror of
https://github.com/status-im/Vulkan-Docs.git
synced 2025-01-31 16:46:05 +00:00
5abf83f95d
* Update release number to 107.
Public Issues:
* Fix revision date for the `<<VK_AMD_gpu_shader_half_float>>` appendix
(public issue 617).
* Make <<synchronization-pipeline-barriers-subpass-self-dependencies,
subpass self-dependencies>> less restrictive (public issue 777).
* Fix the `<<VK_EXT_full_screen_exclusive>>` dependency on
`<<VK_KHR_win32_surface>>` in `vk.xml` (public pull request 849).
* Remove single-page (`apispec.html`) refpage sub-targets from the
Makefile `allman` target and the build instructions. The target is still
present in the Makefile, but we have not been actively maintaining the
single-page document and do not promise it will work. The full
Specification and the individual API reference pages are what we support
and publish at present (public issue 949).
Internal Issues:
* De-duplicate common valid usage statements shared by multiple commands
or structures by using asciidoctor includes and dynamically assigning
part of the valid usage ID based on which command or structure they're
being applied to (internal issue 779).
* Add reference pages for constructs not part of the formal API, such as
platform calling convention macros, and script changes supporting them
This required suppressing some check_spec_links warning classes in order
to pass CI, until a more sophisticated fix can be done (internal issue
888).
* Change math notation for the elink:VkPrimitiveTopology descriptions to
use short forms `v` and `p` instead of `vertex` and `primitive`,
increasing legibility (internal issue 1611).
* Rewrite generated file includes relative to a globally specified path,
fixing some issues with refpage generation (internal issue 1630).
* Update contributor list for `<<VK_EXT_calibrated_timestamps>>`.
* Fix use of pathlin in `scripts/generator.py` so the script will work on
Windows under Python 3.5 (internal merge request 3107).
* Add missing conditionals around the
<<descriptorsets-accelerationstructure, Acceleration Structure>>
section (internal merge request 3108).
* More script synchronization with OpenXR spec repository (internal merge
request 3109).
* Mark the `<<VK_AMD_gpu_shader_half_float>>` and
`<<VK_AMD_gpu_shader_int16>>` extensions as deprecated in `vk.xml` and
the corresponding extension appendices (internal merge request 3112).
New Extensions:
* `<<VK_EXT_headless_surface>>`
101 lines
4.2 KiB
Plaintext
101 lines
4.2 KiB
Plaintext
// Copyright (c) 2014-2019 Khronos Group. This work is licensed under a
|
|
// Creative Commons Attribution 4.0 International License; see
|
|
// http://creativecommons.org/licenses/by/4.0/
|
|
|
|
[open,refpage='VkPresentRegionsKHR',desc='Structure hint of rectangular regions changed by vkQueuePresentKHR',type='structs']
|
|
--
|
|
|
|
When the `VK_KHR_incremental_present` extension is enabled, additional
|
|
fields can: be specified that allow an application to specify that only
|
|
certain rectangular regions of the presentable images of a swapchain are
|
|
changed.
|
|
This is an optimization hint that a presentation engine may: use to only
|
|
update the region of a surface that is actually changing.
|
|
The application still must: ensure that all pixels of a presented image
|
|
contain the desired values, in case the presentation engine ignores this
|
|
hint.
|
|
An application can: provide this hint by including the
|
|
sname:VkPresentRegionsKHR structure in the pname:pNext chain of the
|
|
sname:VkPresentInfoKHR structure.
|
|
|
|
The sname:VkPresentRegionsKHR structure is defined as:
|
|
|
|
include::{generated}/api/structs/VkPresentRegionsKHR.txt[]
|
|
|
|
* pname:sType is the type of this structure.
|
|
* pname:pNext is `NULL` or a pointer to an extension-specific structure.
|
|
* pname:swapchainCount is the number of swapchains being presented to by
|
|
this command.
|
|
* pname:pRegions is `NULL` or a pointer to an array of
|
|
sname:VkPresentRegionKHR elements with pname:swapchainCount entries.
|
|
If not `NULL`, each element of pname:pRegions contains the region that
|
|
has changed since the last present to the swapchain in the corresponding
|
|
entry in the sname:VkPresentInfoKHR::pname:pSwapchains array.
|
|
|
|
.Valid Usage
|
|
****
|
|
* [[VUID-VkPresentRegionsKHR-swapchainCount-01260]]
|
|
pname:swapchainCount must: be the same value as
|
|
sname:VkPresentInfoKHR::pname:swapchainCount, where
|
|
sname:VkPresentInfoKHR is in the pname:pNext chain of this
|
|
sname:VkPresentRegionsKHR structure
|
|
****
|
|
|
|
include::{generated}/validity/structs/VkPresentRegionsKHR.txt[]
|
|
--
|
|
|
|
[open,refpage='VkPresentRegionKHR',desc='Structure containing rectangular region changed by vkQueuePresentKHR for a given VkImage',type='structs']
|
|
--
|
|
|
|
For a given image and swapchain, the region to present is specified by the
|
|
sname:VkPresentRegionKHR structure, which is defined as:
|
|
|
|
include::{generated}/api/structs/VkPresentRegionKHR.txt[]
|
|
|
|
* pname:rectangleCount is the number of rectangles in pname:pRectangles,
|
|
or zero if the entire image has changed and should be presented.
|
|
* pname:pRectangles is either `NULL` or a pointer to an array of
|
|
sname:VkRectLayerKHR structures.
|
|
The sname:VkRectLayerKHR structure is the framebuffer coordinates, plus
|
|
layer, of a portion of a presentable image that has changed and must: be
|
|
presented.
|
|
If non-`NULL`, each entry in pname:pRectangles is a rectangle of the
|
|
given image that has changed since the last image was presented to the
|
|
given swapchain.
|
|
|
|
include::{generated}/validity/structs/VkPresentRegionKHR.txt[]
|
|
--
|
|
|
|
[open,refpage='VkRectLayerKHR',desc='Structure containing a rectangle, including layer, changed by vkQueuePresentKHR for a given VkImage',type='structs']
|
|
--
|
|
|
|
The sname:VkRectLayerKHR structure is defined as:
|
|
|
|
include::{generated}/api/structs/VkRectLayerKHR.txt[]
|
|
|
|
* pname:offset is the origin of the rectangle, in pixels.
|
|
* pname:extent is the size of the rectangle, in pixels.
|
|
* pname:layer is the layer of the image.
|
|
For images with only one layer, the value of pname:layer must: be 0.
|
|
|
|
.Valid Usage
|
|
****
|
|
* [[VUID-VkRectLayerKHR-offset-01261]]
|
|
The sum of pname:offset and pname:extent must: be no greater than the
|
|
pname:imageExtent member of the sname:VkSwapchainCreateInfoKHR structure
|
|
given to flink:vkCreateSwapchainKHR.
|
|
* [[VUID-VkRectLayerKHR-layer-01262]]
|
|
pname:layer must: be less than pname:imageArrayLayers member of the
|
|
sname:VkSwapchainCreateInfoKHR structure given to
|
|
flink:vkCreateSwapchainKHR.
|
|
****
|
|
|
|
include::{generated}/validity/structs/VkRectLayerKHR.txt[]
|
|
|
|
Some platforms allow the size of a surface to change, and then scale the
|
|
pixels of the image to fit the surface.
|
|
sname:VkRectLayerKHR specifies pixels of the swapchain's image(s), which
|
|
will be constant for the life of the swapchain.
|
|
|
|
--
|