Eino-Ville Talvala 7c51e8492e graphics.mapper@2.0: Document previously-implicit accessRegion behavior. ...

Existing Android framework code (and transitively, CTS test) require
that an accessRegion of (0,0,0,0) is treated the same as an
accessRegion covering the entire buffer, when calling lock() or
lockYCbCr().

Document this so that there is no confusion about this going forward,
since this requirement pre-dates the HIDL HALs.

Bug: 119440345
Test: Builds
Change-Id: Id16831d3da4ec3dc74dbdca18447581a50ee1193

2019-03-28 16:51:39 -07:00

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