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Improve platform views performance #31198
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platform-android
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This PR is approved and tested, but waiting for the tree to be green to land.
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Improves the performance of platform views by rendering to a TextureLayer
while a view is embedded to the Android view hierarchy.
This is possible because a
View
can be drawn to an arbitraryCanvas
.For example:
Surface#lockHardwareCanvas
is available since API level 23.This PR eliminates the Virtual Display backend implementation, and replaces it
for hybrid composition rendered as a texture layer.
This change should be transparent to clients that rely on Virtual Display implementations.
Next steps
In the current hybrid composition implementation, this change removes the need for
raster synchronization (e.g. thread merging and FlutterImageView).
Issue
flutter/flutter#96679