Open Bug 1708022 Opened 3 years ago Updated 11 months ago

Use DMA buffers for WebGPU presentation on Linux

Categories

(Core :: Graphics: WebGPU, enhancement, P3)

Product:
Core
Component:
Graphics: WebGPU
Platform:
All
Linux
Type:
enhancement

Tracking

()

People

(Reporter: kvark, Unassigned)

References

(Depends on 1 open bug, Blocks 3 open bugs)

Details

On Linux, DMA buffers is the way to share textures rendered by WebGPU to WebRender.

We could create a ring of DMA buffers, each associated with a separate external image ID. The canvas would still have a single ImageKey, but we'd switch it to the appropriate external image ID on presentation.

See RenderDMABUFTextureHost

We'll have to check if DMABufs are enabled.

This requires gfx.x11-egl.force-enabled option.

Blocks: egl-linux-dmabuf
Severity: -- → S3
Priority: -- → P3
Blocks: webgpu-phase-2
No longer blocks: webgpu-v1
Depends on: 1844779
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