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authorSimon Ser <contact@emersion.fr>2022-11-04 16:54:49 +0100
committerSimon Ser <contact@emersion.fr>2022-11-11 19:18:04 +0000
commitf1eae0eeebcae0eed8754f6c6db0a14cf8ad401f (patch)
treeabd92e52f98b2e69bed59aa788f1b812f0b1bff1 /render/allocator
parenta8a194d695af9df4761bd894174134704ae7cebb (diff)
render/vulkan: add a command buffer pool
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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