Very basic Wayland support is implemented by importing
memory with VK_EXT_image_drm_format_modifiers.
The current implementation requires an external system
memory allocator. An API for this allocator is defined
in util/wsialloc/wsialloc.h and an implementation using
the ION memory allocator is included.
Outstanding issues:
* This is an initial prototype for Wayland support and
has many outstanding TODOs which need addressing to
properly use the Wayland protocol.
* Using ICD Exported memory instead of a system allocator
is not implemented.
Wayland support is still experimental and outstanding issues
will be fixed in future commits.
Change-Id: I1b0d5991e15ff1cf25ebbab3392a631b021e8c17
Signed-off-by: Rosen Zhelev <rosen.zhelev@arm.com>
Signed-off-by: Iason Paraskevopoulos <iason.paraskevopoulos@arm.com>
In vkCreateInstance:
- ppEnabledExtensionNames is checked to determine which window-system
platforms the layer should enable support for.
- support in the layer is always enabled if possible, even if this may
be provided by the ICDs. Platforms not supported by the layer should
still be correctly supported by the ICDs (untested.)
- pApplicationInfo is changed to bump the Vulkan API version
in order to enable instance extensions that are necessary for some
of the platforms implemented in the layer.
In vkCreateDevice:
- ppEnabledExtensionNames is extended with device extensions required
by the layer.
- if the extensions are not supported by the physical device, the
layer fails to initialize the device.
Change-Id: Ibdd69fca38e7909d5b8f0ac7698805ea5f425ac6
Signed-off-by: Joe Jenner-Bailey <joe.jenner-bailey@arm.com>
Signed-off-by: Matteo Franchin <matteo.franchin@arm.com>
This commit adds the initial sources for the vulkan-wsi-layer project:
a Vulkan layer which implements some of the Vulkan window system
integration extensions such as VK_KHR_swapchain.
The layer is designed to be GPU vendor agnostic when used as part of the
Vulkan ICD/loader architecture.
The project currently implements support for VK_EXT_headless_surface and
its dependencies. We hope to extend support for further platforms such
as Wayland and direct-to-display rendering in the future.
This initial commit collects contributions from different individuals
employed by Arm.
More information on the project (building instructions, how to
contribute, etc.) can be found on the README.md file at the top of the
project tree.
Signed-off-by: Matteo Franchin <matteo.franchin@arm.com>
