Keep a scratch block around for reuse in GrBlockAllocator
This can optimize cases in a allocate-release loop that moves back
and forth across the end of one block and the start of another. Before
this would malloc a new block and then delete it.
It also enables reserve() in higher-level data collections w/o blocking
bytes left in the current tail block.
Change-Id: Ide16e9038384fcb188164fc9620a8295f6880b9f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/303268
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
6 files changed