Skip to content

/ webrender

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Refactor and improve the texture cache, implement new allocator. #1572

Merged
merged 9 commits into from Aug 15, 2017
Merged

Refactor and improve the texture cache, implement new allocator. #1572

merged 9 commits into from Aug 15, 2017
+1,362 −1,631

Commits on Aug 14, 2017

  1. Update gleam to 0.4.8 (allows upload of array textures via PBO).

    @gw3583
    gw3583 committed Aug 14, 2017
    53b24c9

  2. Remove coalesce benchmark that is no longer relevant.

    @gw3583
    gw3583 committed Aug 14, 2017
    7d70874

  3. Add support for weak handles to freelist.

    @gw3583
    gw3583 committed Aug 14, 2017
    f40f337

  4. Add support for array textures that don't have FBOs. 

    Simplify render targets (always array textures).
Remove resize_texture which is now unused.
Support uploading all texture types via PBO.
Remove support for texture upload without PBO.
    @gw3583
    gw3583 committed Aug 14, 2017
    899f980

  5. Switch debug renderer to use array textures.

    @gw3583
    gw3583 committed Aug 14, 2017
    c292804

  6. Update shaders that fetch from sColor* to use array samplers.

    @gw3583
    gw3583 committed Aug 14, 2017
    96dc9d2

  7. Refactor and improve the texture cache implementation. 

    * The texture cache now acts more like a traditional cache,
  where the cache is a fixed size, and can evict items as required.
* The allocator is switched to a slab style allocator, allowing
  deterministic behavior when allocating and freeing.
* The slab allocator does not suffer from fragmentation like the
  previous allocator, and has no coalesce requirements.
* The eviction policy is a lot smarter than the previous implementation.
  Items are evicted from the cache as required, and not before.
* Since the shared cache is a fixed / bounded size, any allocations
  that are too large for the cache are created as standalone textures.
* In the rare / edge case of the fixed sized cache being full, and
  the cache not being able to evict items, these items also fallback
  to the standalone texture allocator.
* All textures using the sColor* samplers are now array textures.
  This will allow us to simplify the large image tiling code in
  the future.
* All texture updates are performed via PBO, to eliminate CPU
  driver stalls when updating textures.
    @gw3583
    gw3583 committed Aug 14, 2017
    Loading status checks…
    9167149

  8. Fix shader validation error.

    @gw3583
    gw3583 committed Aug 14, 2017
    Loading status checks…
    869babf

  9. Address review comments.

    @gw3583
    gw3583 committed Aug 14, 2017
    Loading status checks…
    63ec62c
You can’t perform that action at this time.