commit-bot@chromium.org 50a3043194 We want to give SkPixelRef a way to signal over to GrResourceCache that it's become pointless to keep around textures based on that SkPixelRef when its pixels change, so that it can be a good citizen and free those textures. ... 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		2013-10-24 17:44:27 +00:00
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animator	Sanitizing source files in Skia_Periodic_House_Keeping	2013-01-26 07:06:02 +00:00
config	Clean up SkTypes.h.	2013-10-11 18:50:45 +00:00
core	We want to give SkPixelRef a way to signal over to GrResourceCache that it's become pointless to keep around textures based on that SkPixelRef when its pixels change, so that it can be a good citizen and free those textures.	2013-10-24 17:44:27 +00:00
device/xps	Split SkDevice into SkBaseDevice and SkBitmapDevice	2013-08-29 11:54:56 +00:00
effects	Initial error handling code	2013-10-23 17:06:21 +00:00
gpu	We want to give SkPixelRef a way to signal over to GrResourceCache that it's become pointless to keep around textures based on that SkPixelRef when its pixels change, so that it can be a good citizen and free those textures.	2013-10-24 17:44:27 +00:00
images	Change SkImageDecoders to take an SkStreamRewindable.	2013-09-25 21:34:24 +00:00
lazy	The two leaks are:	2013-07-11 22:29:29 +00:00
pathops	Export SkPathOps.h functions for external use.	2013-07-09 19:43:35 +00:00
pdf	Add DPI stettings to SkDocument::CreatePDF(). Tests will be added in a future cl, once DPI will be used in SkPDFDevice	2013-10-21 17:14:37 +00:00
pipe	Fixes for piping bitmaps with encoded data.	2013-04-30 02:32:41 +00:00
ports	Fix ambiguity in API if no matching system language is found	2013-10-07 19:49:13 +00:00
svg	Sanitizing source files in Skia_Periodic_House_Keeping	2013-01-26 07:06:02 +00:00
text	Sanitizing source files in Skia_Periodic_House_Keeping	2013-01-26 07:06:02 +00:00
utils	Revert "If the path is a rect, call drawRect to raster the geometry in SkCanvas::drawPath to get better performance."	2013-10-22 16:54:15 +00:00
views	use select() so we can wait for XEvents or our timer	2013-06-17 13:42:43 +00:00
xml	Sanitizing source files in Skia_Periodic_House_Keeping	2013-01-26 07:06:02 +00:00