Brian Salomon 9241a6d394 Reland "Reland "SkSurface asynchronous read APIs allow client to extend pixel lifetime"" ... This is a reland of 6fc04f88a8 Original change's description: > Reland "SkSurface asynchronous read APIs allow client to extend pixel lifetime" > > This is a reland of ce240cc6fd > > Original change's description: > > SkSurface asynchronous read APIs allow client to extend pixel lifetime > > > > Previously the pixel data passed to the client was only valid during > > the client's callback. This meant if the client wanted to defer > > processing of the data a copy was necessary. > > > > Now we pass an object to the callback and the pixel lifetime is tied > > to the lifetime of that object. > > > > The object may be holding a GPU transfer buffer mapped. We don't assume > > that the object will be released on the direct GrContext thread. So > > when the object is destroyed it posts a message to a new type, > > GrClientMappedBufferManager, hanging off the direct context. The direct > > context will periodically check for messages and unmap and then unref > > buffers so that they can be reused. Currently this is done in > > GrContext::performDeferredCleanup() and GrDrawingManager::flush(). > > > > The old API is kept around for backwards compatibility but it is > > reimplemented as a bridge on top of the new mechanism. > > > > Also a utility function to SkImageInfo is added to directly make a new > > info with a specified dimensions rather than passing the width and > > height separately to makeWH(). > > > > Bug: chromium:973403 > > Bug: skia:8962 > > > > Change-Id: Id5cf04235376170142a48e90d3ecd13fd021a2a6 > > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/245457 > > Reviewed-by: Brian Osman <brianosman@google.com> > > Commit-Queue: Brian Salomon <bsalomon@google.com> > > Bug: chromium:973403, skia:8962 > Change-Id: I5cecd36276c8b6dc942cf549c7095db2df88530c > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/245678 > Reviewed-by: Brian Salomon <bsalomon@google.com> > Commit-Queue: Brian Salomon <bsalomon@google.com> Bug: chromium:973403, skia:8962 Change-Id: Ie584c1c3ef8021c976f71b708e53871c693cc450 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/246057 Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Brian Salomon <bsalomon@google.com>		2019-10-03 19:14:22 +00:00
..
DM.cpp	Simplify GPUSink constructors by just passing the config object	2019-09-09 18:12:18 +00:00
DMGpuTestProcs.cpp	Remove "nvpr" configs	2019-06-26 16:53:50 +00:00
DMJsonWriter.cpp	Remove all global mutexes	2019-06-18 00:39:15 +00:00
DMJsonWriter.h	rewrite includes to not need so much -Ifoo	2019-04-24 16:27:11 +00:00
DMSrcSink.cpp	Reland "Reland "SkSurface asynchronous read APIs allow client to extend pixel lifetime""	2019-10-03 19:14:22 +00:00
DMSrcSink.h	Simplify GPUSink constructors by just passing the config object	2019-09-09 18:12:18 +00:00