Track the (per-thread) active `GHOST_Context`.
This is required to restore the active context after creating a new one
if the current context is unknown.
(Required for creating GPU contexts in the GPU module without depending
on the WM module)
Pull Request: https://projects.blender.org/blender/blender/pulls/136992
Current implementation uses a CPU roundtrip to transfer render result
to the Xr Swapchain. This PR adds support for sharing the render result
on Linux systems by using file descriptors.
To extend this solution to win32 or dx handles can be done by extending
the data transfer modes, register the correct extensions. When not
using the same GPU between Blender and OpenXR the CPU roundtrip
will still be used.
Solution has been validated with monado simulator and seems to be as
fast as OpenGL.
Performance can be improved by using GPU based synchronization.
Current API is limited as we cannot chain the different renders and
swapchains.
Pull Request: https://projects.blender.org/blender/blender/pulls/136933
Improve the number of images that are requested in the swapchain. For
mailbox presentation mode we select tripple buffering. For V-Sync
presentation mode we select double buffering.
In future we might want to make the presentation mode and swapchain
images dynamic based on the actual action that the user is performing.
When doing action that benefit from low latency (paint cursor) we should
select mailbox, otherwise we can use fifo to reduce CPU/GPU usage and
safe some energy usage along the way. See #136923 for design task.
Pull Request: https://projects.blender.org/blender/blender/pulls/136922
To make adding a dependeny on TBB easier.
Additional changes:
* Using LIB for libmv tests, as it now brings in includes
* Removing Eigen header listing in iTaSC
Pull Request: https://projects.blender.org/blender/blender/pulls/136865
MacOS is currently using one of our custom "hourglass" cursors during
busy times. This PR changes it to an OS-supplied cursor, a pointer
arrow with an animated blue spinner, meant for this purpose. Although
undocumented it has been used by many applications for many years.
Including Firefox for 11 years now.
Pull Request: https://projects.blender.org/blender/blender/pulls/136735
This PR refactors the way how swapchains are used.
Allow scaling of the swapchain content to the actual resolution of the swapchain.
can reduce artefacts when resizing windows when supported.
When frame rate is to fast the previous implementation could use a semaphore
that were still in use, leading to unwanted stuttering on certain platforms. Waiting
when the rendering has finished (GHOST_Frame.submission_fence), before the
next image is acquired from the swap chain.
Mailbox has been disabled as it can calculate more frames then actually been
presented, leading to a lag and increased power usage on others.
Pull Request: https://projects.blender.org/blender/blender/pulls/136603
Mailbox is lowest latency V-Sync enabled mode. Previously we selected
FIFO as that was always available and has more support when using debug
tools.
Improve the #136521 situation as well.
Pull Request: https://projects.blender.org/blender/blender/pulls/136753
Match the behavior of other platforms by clearing the active window
when it's de-activated.
On Win32 Blender always considered the last-active window to be active
because de-activation wasn't handled.
Part of !136122, needed to fix#134733.
Co-authored-by: Kamil Galik <kgalik@3dconnexion.com>
The Blender's VkInstance cannot be shared with OpenXR VkInstance. The
reason is a chicken and egg problem where OpenXR needs to be started
before Vulkan. OpenXR can add special vulkan specific requirements
(instance&device) that are only available when the user starts an OpenXR
session.
The goal implementation is to share memory between both instances using
[VK_KHR_external_memory](https://registry.khronos.org/vulkan/specs/latest/man/html/VK_KHR_external_memory.html) and related extensions. However this seems
to be a bridge to far as a initial step. Reason: There are not that many
samples/ guides and documentation to be found to handle the workflow that
we require. We want to do a smaller step by step approach to gain the needed
knowledge.
For that reason this PR does the most stupidest thing that can be done to
share memory between instances. Download the render result to CPU RAM share
the host pointer with the OpenXR instance which copies it to the swap chain.
Also the synchronization is done using wait idle commands.
<video src="attachments/32a0d69b-c3fa-4272-aea0-d207609afaaf" title="Screencast From 2025-03-18 11-16-17.webm" controls></video>
**Gaining knowledge**
- Experiment with `VK_KHR_external_memory_host` extension for uploading vertex buffers (not related to OpenXR).
- Import host pointer with `VK_KHR_external_memory_host`. This reduces the additional
memcpy on OpenXR side.
- Export host pointer from Blender side from a mappable buffer.
- Replace host pointers with fd/dmabuf/winhandle
- Remove mappable buffer.
Ref #133718
Pull Request: https://projects.blender.org/blender/blender/pulls/133824
Add support for a 5th modifier key called "hyper",
this is a modifier supported on Wayland & X11 although
other platforms could support an additional modifier too.
Both GNOME and KDE can map CapsLock to Hyper.
Other compositors can use the XKB_DEFAULT_OPTIONS environment variable.
This allows users to have an additional modifier for their own use
that doesn't conflict with other keys.
Ref !136340
The crash regression comes from 583e2b7240.
Pass the s_sharedHGLRC directly to wglCreateContextAttribsARB instead
of using wglShareLists.
Context: https://github.com/baldurk/renderdoc/issues/1224
This doesn't only fix the recent regression, but solves all the long
standing issues with Renderdoc on Windows (F12 rendering support,
multiple windows, deferred compilation...).
(Fix suggested by @LazyDodo)
Pull Request: https://projects.blender.org/blender/blender/pulls/136140
Changes in [0] caused NDOF support on Unix to ignore the `hid_map_`.
- Add updateButtonRAW which takes the RAW button values and maps them
using `hid_map_` (what `updateButton` did before [0]).
- Keep the existing `updateButton` function using mapped events as
updateButtonsBitmask & updateButtonsArray GHOST_NDOF_ButtonT ordered
values.
[0]: c3d92f32dc
The render frame wasn't increased -> always the same semaphore was
selected. In case rendering is fast (or swapchain needs to be
recreated) it could select a semaphore that still had some pending
operations.
Command pools and buffers inside GHOST_ContextVK was used to transit
the swapchain images to something known. This isn't anymore as Blender
assumes that the full extent of the swapchain image is updated and can
ignore the actual image format.
Pull Request: https://projects.blender.org/blender/blender/pulls/136305
This PR adds swapchain synchronization. When the swapchain swaps the
buffers it can add a wait semaphore/signal semaphore to support GPU
based synchronization
10 times playback of `rain_restaurant.blend` on AMD RX 7700
Before: 10 × Animation playback: 72347.5540 ms, average: 7234.75539684 ms
After: 10 × Animation playback: 41523.2441 ms, average: 4152.32441425 ms
Getting around the OpenGL performance target.
Pull Request: https://projects.blender.org/blender/blender/pulls/136259
When a user starts a drag'n'drop operation, the originating application
dictates the formats carried along with it. In the context of what is
broadly supported by Blender, we actively look for "text" and "files" in
the data. In that order. This order sometimes leads to a suboptimal
choice where, for example, a drag'n'drop of a "file" is interpreted as
"text" containing just the path to the file.
This PR changes the ordering to prefer the "files" first. Two notable
applications where this matters are:
- The Firefox download library window
- The Perforce P4V client application
Dragging and dropping files, like say FBX or OBJ, from these two apps
now properly triggers file handler behavior. Existing behavior is best
seen in the Blender Text editor. Dragging and dropping a file from the
above apps into a Text data block will yield the raw "file:///test.ext"
text. This will no longer occur after this PR.
Other platforms might have similar concepts but I don't have the
capability of checking how they handle this type of situation. They
would have to be checked against several applications to see if they
have the same issue.
Pull Request: https://projects.blender.org/blender/blender/pulls/135939
Vulkan handles are currently only requested once. In the future OpenXR
also needs acces to these handles and additional handles will be needed
when introducing copy queues and async compute.
This PR will collect the handles in a struct to ensure we don't need to
alter the GHOST interface for every change.
Pull Request: https://projects.blender.org/blender/blender/pulls/135905
HI-DPI screens now select larger custom cursors on Wayland,
previously small cursors would be scaled up.
This only works well when all outputs have the same scaling
as custom-cursors don't support sending multiple sized cursors
to GHOST at once, see code-comments for details.
Drag and dropping bitmap images (as in drag and dropping directly from
another software such as a web browser, not from an image file in
Finder) inside the Blender window on macOS would segfault due to the
dropped image being [autorelease]d even though its data was meant to
outlive the function scope.
Fixed by removing the superflous autorelease and adding a comment note.
The only caller of this function (GHOST_SystemCocoa::handleDraggingEvent)
already properly [release]s the image in question.
Note that currently, non-file/bitmap image drag and drop is not
implemented on the WM side, and as such this feature/GHOST event does
not do anything practical.
Pull Request: https://projects.blender.org/blender/blender/pulls/135076
This patch modifies the logic behind handling NDOF device events on
macOS so that it can benefit from the `Blender` profile available in
3DConnexion driver v10.8.7 and later.
A new device command was introduced: `kConnexionCmdAppEvent`, which is
sent by the driver upong getting an apprioriate NDOF device button
input. This allow the driver to consumes all NDOF device input and then
send appropriate app events based on its configuration instead of
forwarding raw data to the application directly.
When using 3DConnexion driver versions prior to v10.8.7, the behavior
is unchanged. This approach allows for supporting all of the SpaceMouse
Enterprise buttons, long presses included (solving issue #119206 on macOS)
Co-authored-by: Sergey Sharybin <sergey@blender.org>
Pull Request: https://projects.blender.org/blender/blender/pulls/126694
On Windows 11 use the new WM Window Decoration Styles API, introduced
in ce42d92503. This will match the OS Title bar color to that of the
main window top bar and also do similar color matching with content
in separate windows like Preferences. Note that this will not have any
effect on versions of Windows prior to 11.
Pull Request: https://projects.blender.org/blender/blender/pulls/134054
Logic to ensure finish events were sent wasn't working properly
because processing the events could run before the SPNAV API had
filled the event queue.
Resolve by adding a delay of 100ms, before generating a "finish" event.
For the user this caused the NDOF Guide to flicker while navigating.
