...if there is no support for a VM-side composition buffer but the image has to maintain one. You can view, comment on, or merge this pull request online at:

https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/631

-- Commit Summary --

* CogVM source as per VMMaker.oscog-mt.3184 * For macOS platform, disable primitive 126 for -metal and -core-graphics backends. Any attempt to set the global variable "deferDisplayUpdates" will fail. The image can use this information to employ its own composition buffer.

-- File Changes --

M platforms/iOS/vm/OSX/sqSqueakOSXCGView.m (5) M platforms/iOS/vm/OSX/sqSqueakOSXMetalView.m (2) M src/spur32.cog.lowcode/cointerp.c (16) M src/spur32.cog.lowcode/cointerp.h (3) M src/spur32.cog.lowcode/gcc3x-cointerp.c (16) M src/spur32.cog/cointerp.c (16) M src/spur32.cog/cointerp.h (3) M src/spur32.cog/cointerpmt.c (16) M src/spur32.cog/cointerpmt.h (3) M src/spur32.cog/gcc3x-cointerp.c (16) M src/spur32.cog/gcc3x-cointerpmt.c (16) M src/spur32.sista/cointerp.c (16) M src/spur32.sista/cointerp.h (3) M src/spur32.sista/gcc3x-cointerp.c (16) M src/spur32.stack.lowcode/gcc3x-interp.c (16) M src/spur32.stack.lowcode/interp.c (16) M src/spur32.stack/gcc3x-interp.c (16) M src/spur32.stack/interp.c (16) M src/spur32.stack/validImage.c (9) M src/spur64.cog.lowcode/cointerp.c (16) M src/spur64.cog.lowcode/cointerp.h (3) M src/spur64.cog.lowcode/gcc3x-cointerp.c (16) M src/spur64.cog/cointerp.c (16) M src/spur64.cog/cointerp.h (3) M src/spur64.cog/cointerpmt.c (16) M src/spur64.cog/cointerpmt.h (3) M src/spur64.cog/gcc3x-cointerp.c (16) M src/spur64.cog/gcc3x-cointerpmt.c (16) M src/spur64.sista/cointerp.c (16) M src/spur64.sista/cointerp.h (3) M src/spur64.sista/gcc3x-cointerp.c (16) M src/spur64.stack.lowcode/gcc3x-interp.c (16) M src/spur64.stack.lowcode/interp.c (16) M src/spur64.stack/gcc3x-interp.c (16) M src/spur64.stack/interp.c (16) M src/spur64.stack/validImage.c (9) M src/v3.cog/cointerp.c (16) M src/v3.cog/cointerp.h (3) M src/v3.cog/gcc3x-cointerp.c (16) M src/v3.stack/gcc3x-interp.c (16) M src/v3.stack/interp.c (16)

-- Patch Links --

https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/631.patch https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/631.diff