Blender Git Loki

Merge branch 'master' into compositor-full-frame

Full frame value node

Adds full frame implementation to value node operations.

Full frame color node

Adds full frame implementation to color node operations.

Fix: Unavailable sockets are used during compositing execution

When translating node tree into operations, unavailable sockets (with flag SOCK_UNAVAIL) are converted into operations sockets too. This causes an assertion to fail when selecting a multi-layer image with a "Combined" layer in image node because it maps associated "Alpha" socket to output operation socket twice (as there is an "Image" socket too but with SOCK_UNAVAIL flag).

ImageNode::convertToOperations assumes there is a single socket for combined pass but in this case the unavailable "Image" socket is used too for combined pass.
Image node sockets are marked with SOCK_UNAVAIL flag instead of being removed to keep connections of unused sockets but during compositing execution they shouldn't be created as they are not executed.
This problem has become visible after commit 93e2491, as now map add_new is used instead of just overwriting last mapped socket.

Full frame image node

Adds full frame implementation to image node operations.

Create buffer utility methods for copying/filling rects

Add get_area_of_interest overloading and pass input_op

Merge branch 'master' into cmp-full-frame

Improve comments and naming

Improve SharedOperationBuffers methods naming and add doc comments

Improve get_area_of_interest doc comments and signature

Move execute_work mutex and condition to class scope

Add TODO to improve is_render_registered

Add TODO for get_area_of_interest parameter overloading

Add TODO to remove execute_work workaround.

Use mutex lock instead of atomics

Add TODO to implement MemoryBuffer get_size()

Fix eNodeTreeExecutionMode typedef

Rename WorkPackage functions to *_fn

Move assert before assignment