* The core class is now responsible for tracking the active window and
cycling through, so it can cycle through multiple APIs.
* For GL we only set up associations for capturable windows, and only
those that present (since helper windows are often created). Since
GL doesn't really have a 'this window is done rendering' call, we just
decay old windows that haven't presented in >5 seconds.
* Also on GL, legacy/uncapturable windows aren't associated so they will
not cycle to at all.
* The embedding API now expects a device pointer and window handle to
set active window or start/end a capture. You can still pass NULLs if
there is only one API active.
* There are a handful of ARB and EXT extensions left that aren't in either
the list of supported, or will-never support. These are ones that I want
to support but haven't written the code for.
* We don't try and detect duplicate markers between GREMEDY and KHR_debug,
just assume the program is smart enough to detect that both are available
and pick only one to use.
* This means that all APIs pass byte string types. ALL strings everywhere
in the entire codebase must be assumed to be and treated as UTF-8 content
not ASCII.
* Gets rid of all the horrible %hs specifiers that caused warnings on
linux! Hooray.
* We convert to wide strings, or use wide characters, only when necessary
to use the Win32 API. Some windows specific code will stay in wide chars
just for convenience.
* Files are already serialised as UTF-8 strings for linux/windows binary
compatibility, so this change doesn't break backwards compatibility.
* This lets us distinguish framebuffer object 1 on context A from
FBO 1 on context B.
* At the moment we assume that all shareable objects are shared between
all contexts. I think this is sensible and fairly common, but it will
break if some contexts don't share as the objects will alias.
* Remove legacy wrapped functions that were only hacked-in to get
glxgears working as a proof of concept.
* Split out groups of wrapped functions into separate files by type
baldurk