tree 727d7ee405d0a6fa50bca66dd3a527c3583d0b8a
parent d567408362bf7847d6000f6786f9a7b2c9d0b88b
author Jim Van Verth <jvanverth@google.com> 1555607461 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> 1555715463 +0000

Add Metal support for dynamic buffers.

Implements dynamic buffers as subbuffers of a larger allocation. As
we map and unmap, we change the subbuffer to ensure we don't overwrite
previous data. Buffers larger than our standard allocation are assumed
to do their own subbuffer management.

Bug: skia:8243
Change-Id: I3600463860fae235c46414a465ea106faa97ea0b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209061
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>