This is a reland of f4c5bb9aba
Original change's description:
> Make GPU cache invalidation SkMessageBus messages go to one GrContext.
>
> Makes it so the template param to SkMessageBus must implement:
> bool shouldSend(uint32_t inboxID) const
>
> Updates all GPU backend message types to only go to the GrContext that
> is adding a cache entry.
>
> Bug: skia:
> Change-Id: I3e8a4eb90654b7b8ac57cac9fb508c0ef1d51058
> Reviewed-on: https://skia-review.googlesource.com/140220
> Reviewed-by: Robert Phillips <robertphillips@google.com>
> Reviewed-by: Jim Van Verth <jvanverth@google.com>
Bug: skia:
Change-Id: I8402bfe3ed0170c99936d47050458817030b473b
Reviewed-on: https://skia-review.googlesource.com/140801
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
This reverts commit f4c5bb9aba.
Reason for revert: Accidentally submitted without CQ
Original change's description:
> Make GPU cache invalidation SkMessageBus messages go to one GrContext.
>
> Makes it so the template param to SkMessageBus must implement:
> bool shouldSend(uint32_t inboxID) const
>
> Updates all GPU backend message types to only go to the GrContext that
> is adding a cache entry.
>
> Bug: skia:
> Change-Id: I3e8a4eb90654b7b8ac57cac9fb508c0ef1d51058
> Reviewed-on: https://skia-review.googlesource.com/140220
> Reviewed-by: Robert Phillips <robertphillips@google.com>
> Reviewed-by: Jim Van Verth <jvanverth@google.com>
TBR=jvanverth@google.com,bsalomon@google.com,robertphillips@google.com
Change-Id: Iadb667d8027341703d254325320ddaa528fb33a1
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/140800
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Makes it so the template param to SkMessageBus must implement:
bool shouldSend(uint32_t inboxID) const
Updates all GPU backend message types to only go to the GrContext that
is adding a cache entry.
Bug: skia:
Change-Id: I3e8a4eb90654b7b8ac57cac9fb508c0ef1d51058
Reviewed-on: https://skia-review.googlesource.com/140220
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
This adds an invalidation listener mechanism to SkPixelRef to let it send this message while still staying ignorant of who's listening.
These messages are tricky to deliver. The SkPixelRefs they originates from and the GrResourceCaches they ultimately end up at may be on different threads; neither class is threadsafe; their object lifetimes are totally independent; it's a many-senders-to-many-receivers relation; and neither codebase should really know about the other.
So I've added a per-message-type global message bus to broadcast messages to threadsafe inboxes. Anyone can post() a message, which will show up in all the inboxes of that type, read whenever the inbox's owner calls poll(). The implementation is _dumb_; it can be improved in several dimensions (inbox size limits, lock-free message delivery) if we find the need.
I took some care to make sure not to send the invalidation message for any SkPixelRef that's sharing a generation ID with another SkPixelRef.
BUG=
R=bsalomon@google.com, scroggo@google.com, reed@google.com
Author: mtklein@google.com
Review URL: https://codereview.chromium.org/26734003
git-svn-id: http://skia.googlecode.com/svn/trunk@11949 2bbb7eff-a529-9590-31e7-b0007b416f81
