Lucas Stach

This is how I would envision the bo alloc call to work. Pull request meant as a place to get a discussion about this going.

Visibility of changes to targets created from EGLImages is underspecified

13

EGL specifies that modifications to one sibling of a EGLImage are visible to all other siblings: `If an application specifies an EGLImage sibling as the destination for rendering and/or pixel...