libobs/graphics: Add null/context warnings

Adds warnings for graphics functions to ensure that graphics functions
are called within an active graphics context, and add warnings if
required pointer parameters are null.
master
jp9000 2015-10-17 06:04:11 -07:00
parent 8d895eaa6a
commit d242004bee
1 changed files with 517 additions and 174 deletions

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