Blender Git Loki

Merge branch 'master' into tmp-vulkan

# Conflicts:
# source/blender/blenkernel/BKE_global.h
# source/blender/gpu/intern/gpu_context.cc
# source/blender/windowmanager/intern/wm_window.c
# source/creator/creator_args.c

VK: Initial Base implementation

Merge branch 'master' into tmp-vulkan

# Conflicts:
# CMakeLists.txt

VK: Avoid asserts in debug builds.

GHOST: X11: Enable debug context for vulkan in offscreen contexts

GHOST: Vulkan: Rework support for MSVC

This removes designated initializer because not supported by MSVC for our
current C++ version.

Fixes some other compile errors and add usage of the `ContextVK` context in
the Win32 backend.

VK: OSX: Use debug context and use METAL_SURFACE instead of MACOS_SURFACE

VK: Make the placeholder backend work

Now we get a green window without a crash

Cleanup: Vulkan: Unused header and avoid duplicated code

Vulkan: OSX: Use vulkan context for offscreen context

Vulkan: Fix compilation on OSX

This was caused by an internal metal type. The fix is a
workaround since I could not find the right solution.

GPU: Add Vulkan empty implementation

This does not even builds! WHY?

GHOST: Vulkan: Add MoltenVK Backend on osx

This is still highly experimental.

Merge branch 'master' into tmp-vulkan

Merge branch 'master' into tmp-vulkan

# Conflicts:
# CMakeLists.txt
# intern/ghost/GHOST_C-api.h
# intern/ghost/GHOST_ISystem.h
# intern/ghost/intern/GHOST_C-api.cpp
# intern/ghost/intern/GHOST_System.h
# intern/ghost/intern/GHOST_SystemCocoa.h
# intern/ghost/intern/GHOST_SystemCocoa.mm
# intern/ghost/intern/GHOST_SystemNULL.h
# intern/ghost/intern/GHOST_SystemSDL.cpp
# intern/ghost/intern/GHOST_SystemSDL.h
# intern/ghost/intern/GHOST_SystemWayland.cpp
# intern/ghost/intern/GHOST_SystemWayland.h
# intern/ghost/intern/GHOST_SystemWin32.cpp
# intern/ghost/intern/GHOST_SystemWin32.h
# intern/ghost/intern/GHOST_SystemX11.cpp
# intern/ghost/intern/GHOST_SystemX11.h
# source/blender/blenkernel/BKE_global.h
# source/blender/windowmanager/intern/wm_window.c

GPU: Vulkan: Add creator arg to enable vulkan drawing

The creator arg is meant to support more than vulkan or opengl.

This currently fails because there is no GPU backend separation.

Note that we use G.debug with a debug flag to know what context type to
create. This will need to be cleaned later.

GHOST: Vulkan: Support window resizing

GHOST: Vulkan: Style Cleanup

GHOST: Vulkan: Better debug messages

GHOST: Vulkan: Remove swap interval functions