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Users should use the VK_INSTANCE_LAYERS env var to set layers at runtime
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The following situation can be dangerous:
- Output DP-1 is plugged in, compositor enables it.
- User VT switches away.
- User unplugs DP-1.
- User VT switches back.
- scan_drm_connectors() figures out the output is now disconnected,
uninitializes the struct wlr_output.
- The loop restoring previous output state in handle_session_active()
accesses the struct wlr_output to figure out what to restore.
By chance, we zero out the struct wlr_output after uninitializing it,
so enabled and current_mode will always be zero. But let's make sure
we handle this case explicitly, to remind future readers that it exists
and make the code less fragile.
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`modifiers` and `external_only` are never initialized, and free'd later. This
commit explicitly initializes them to NULL to prevent segfaults on `free()`
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Missed that one it seems.
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It's not safe to destroy any resources which might still be in-use
by the GPU. Wait for any asynchronous tasks to complete before
destroying everything.
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When we have multiple command buffers in flight, we need to make
sure we don't start rendering before the previous texture uploads
are complete.
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Before re-using a VkCommandBuffer, we need to wait for its
operations to complete. Right now we unconditionally wait for
rendering to complete in vulkan_end(), however we have plans to
fix this [1]. To fully avoid blocking, we need to handle multiple
command buffers in flight at the same time (e.g. for multi-output,
or for rendering followed by texture uploads).
Implement a pool of command buffers. When we need to render, we
pick a command buffer from the pool which has completed its
operations. If we don't find one, try to allocate a new command
buffer. If we don't have slots in the pool anymore, block like we
did before.
[1]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3574
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Up until now we were using a VkFence for GPU-to-CPU
synchronization. This has some limitations that become a blocker
when trying to have multiple command buffers in flight at once
(e.g. for multi-output). It's desirable to implement a command
buffer pool [1], but VkFence cannot be used to track command buffer
completion for individual subpasses.
Let's just switch to timeline semaphores [2], which fix this issue,
make synchronization a lot more ergonomic and are a core Vulkan 1.2
feature.
[1]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3802
[2]: https://www.khronos.org/blog/vulkan-timeline-semaphores
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If NULL is returned by vkGetDeviceProcAddr(), either the driver
is buggy, either the wlroots code is buggy. For a valid device and
command name, drivers are not allowed to return NULL per the spec.
This mirrors what the GLES2 renderer does in load_gl_proc().
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wlr_buffer allows mutation during its lifetime. This happens for
wlr_client_buffer which fixes damage tracking issues.
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The old drm_connector_set_mode() function did that by calling
drm_crtc_page_flip(). We lost this in the refactoring.
Fixes: f216e979836a ("backend/drm: drop drm_connector_set_mode()")
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Add private interface to ignore a buffer that's locking a client_buffer
for damage tracking. This should eventually be replaced by wlr_raster.
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This reverts commit e646d882cf4949d290fff2ba3b7ae4c124f6f13d.
This commit has added a dependency on udev_hwdb. This API isn't
available on all platforms (e.g. FreeBSD), and further deepens
our udev dependency. A better solution is being worked on in [1].
[1]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3638
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This allows addons to access wlr_scene_node/wlr_scene_surface
fields to clean up themselves.
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This reverts commit 9fefeb69d6fc1136cfad7d690e1d7385c058fd72.
It doesn't really crop anything, actually.
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Added wlr_vk_renderer_get_* functions to allow get the VkInstance,
VkPhysicalDevice, VkDevice, queue family of a wlr_vk_renderer.
Added wlr_vk_renderer_get_current_image_attribs function to allow get
the VkImage of current renderer buffer to use on compositors.
Added wlr_renderer_is_vk function, it's like the wlr_renderer_is_gles2,
returns true if the wlr_renderer is a wlr_vk_renderer.
Added wlr_vk_image_get_attribs function to get a VkImage and it's
extras information (e.g. a VkImageLayout and VkImageFormat of the
VkImage) from a wlr_texture.
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This fixes e.g. `weston-simple-damage --use-viewport` which technically
renders at the buffer scale of 0.5.
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Avoids the need to open-code the realloc() logic.
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Fixes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3372
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In wlroots we add comments near struct wl_list members to indicate
which type it's linked to. The Vulkan renderer had some comments
with mistakes, and some members without a comment.
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I simplified the quad VkPipelineShaderStageCreateInfo in [1], but
missed the one for texture.
[1]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3823
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Instead of filling the fields one by one, use a struct initializer.
This avoids repeating the name of the variable and is more
consistent with the wlroots code style.
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find_extensions() is clunky to use when checking only a single
extension, and it's surprising that it returns NULL on success.
Simplify by replacing it with a check_extension() function which
just checks whether a single extension is in the list.
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Instead, move the check to the caller.
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We're about to get one more Xwayland-related thing, and this header
already contains two things.
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This stuff is immutable for a given connector.
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Move a bit more logic out of the big loop in scan_drm_connectors().
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