tree 86ef5c921c78280e98d32fb5e21065340cbe62ca
parent d08611b7a8dca46cd82046575e202c4b713140f6
author Yan, Shaobo <shaobo.yan@intel.com> 1564536582 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1564536582 +0000

Dynamic Buffer Offset : D3D Backend

In a typical graphics application it is a common usage to update some uniforms once per draw,
and such uniforms include the word positions, orientations, and so on. In the current state of
WebGPU, this means that for each draw call we have to create a new bind group to set the right
uniform values. Bind group creation is expected to be more expensive than
recording draws because a memory allocation is required.

The functionality of dynamic buffer offset is to reduce the number of bind groups that need to
be created.

The patch implements dynamic buffer offset on D3D backend using root descriptor.

Bug=dawn:55

Change-Id: Ia713a4edb3c0ab8f3bba048d7813f343e9dee166
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/9040
Commit-Queue: Shaobo Yan <shaobo.yan@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>