Chinmay Garde 09be477a9f Don’t depend on an implicit transaction when no external view embedder is present. (flutter/engine#17258)
All Metal layers have their presentsWithTransaction property set to true.
However, when an external view embedder is not present, there is no mechanism to
ensure that the command buffer commit is within transaction scope. This works in
most cases as there there is usually an implicit (possibly nested) transaction
in place during rendering. However, when there isn’t, rendering will look paused
at an incorrect size. This code now works similar to OpenGL but will be
refactored for ease of understanding and consistency between the various
backends.
2020-03-22 19:16:21 -07:00
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