Blender Git Loki

Fix ffmpeg memory leaks

- audio_stream wasn't freed.
- audio/video stream + context weren't freed on failure.

Fix: X-axis values in Graph Editor should not be displayed as timecodes in "Drivers" mode

Fix related to T46538: do not popup choice menu of mark/clear seam UV editor op invoke when prop is already set!

Fix snap-scale w/ axis constraint

Related to T46503,
fix only worked when the snap target was axis-aligned.

Cycles: Watertight fix for SSS intersection

Same as previous commit, just was missing in there.

Fix T46561: Crash in outliner delete hierarchy

When children & parents were selected in the outliner,
it attempted to free the the object twice.

Fix T46569: Crash w/ mask & locked-track enabled

BGE: Fix T46556: check on null sound datablock pointer.

Cycles: Fix for watertight intersection

It was possible to miss some intersection caused by wrong barycentric
coordinates sign.

Cases when one of the coordinate is zero and other are negative was not
handled correct.

Fix ffmpeg saving long paths

Was checking wrong length on string copy.

Fix T46521: Python: bvh.ray_cast doesn't find a plane facing in the other direction under certain circumstances

The issue was caused by wrong sign check. It originally came from more optimized
Cycles code where because of other reasons it wasn't visible yet. But in fact it
should be solved there as well.

Fix for error w/ RenderView in ImageView list

Fix T46529: Unwrap UV w/ use-subsurf fails

Regression since moving to looptri.

Fix T46520: mathutils.bvhtree crashes with distance input.

Should be backported to 'a' release.

Fix T46531: Cannot use % in filenames.

Same case as with space char really, one should not use those special chars in
filenames, but they are globally supported by all current FS/OS, so no real reason
to enforce that behvior on users here.

To be backported to 'a' release.

Fix T46524: Use Alpha (Straight/Premultiply) option missing in 2.76, part II.

Different issue actually, here RAWTGA was simply forgotten in the alpha-capable formats...

Fix T46544: Can't unpack generated image

BGE: Fix T46381 : last action frame not updated.

It fix T46381. Normally BL_Action::Update (manage action time, end, loop?) should be called the same number of times as BL_Action::UpdateIPO (update action position, scale ect? in the game object).
But the bug report shows that UpdateIPO is called one less time than Update. To fix it i revert the commit 362b25b38287cb75e4d22b30bdbc7f47e8eb3fdf and implement a mutex in BL_Action::Update.
Example file : {F245823}

Reviewers: lordloki, kupoman, campbellbarton, youle, moguri, sybren

Reviewed By: youle, moguri, sybren

Maniphest Tasks: T39928, T46381

Differential Revision: https://developer.blender.org/D1562

Fix T46565: Movie render crash w/o permissions

Rendering to a path that didn't have write permissions would crash.

Also fix error where `G.is_rendering` was left set when rendering failed.

BGE: Fix physics meshes conversion with modifiers.

Previously meshes with modifiers were considerate as empty (no polys).