OpenGL in coreARB mode

[alec101]

At the moment, OpenGL has every extension active, every deprecated stuff active, every incomplete extension active, basically, a mess.

By default, it should be in coreARB mode, i think:

• coreARB has every deprecated stuff eliminated from your program
• it has all completed ARB extensions
• it has every feature that is not deprecated from OpenGL 1.0 to current version (4.5 or something)
• this is the intended mode that the guys building OpenGL want it to be, i believe.
• to activate this mode, you just have to #include "glcorearb.h". This file was originally named gl3.h when OpenGL3.0 was out and changed at a later date.
• MacOS still names this header gl3.h, but they might change the name in the future too.
• OSI should not promote legacy/deprecated stuff

The current way, in which everything is active, shouldn't go away tho:

• if you still want old features active, it should be easily done by some setting, maybe if you #define OSI_USE_OPENGL_LEGACY the header file osinteraction.h will include every bit and piece of OpenGL from dawn to current.
• this current mode name is an issue: should it be named 'legacy' or 'full mode' or something that truly resembles what this mode is.
• this should not be enabled by default as very old stuff, deprecated stuff, incomplete extensions, are active, and your program is clogged with thousands of functions & definitions that many won't help you at anything.
• this mode is nice to test weird extensions that didn't make it into ARB tho...
• to activate this mode you need to include gl.h and glext.h, so a simple switch between the two modes is easily done.

Another problem with coreARB mode is, that if you want to test extensions that are not in ARB, (EXT, NV, ATI, etc), they wrote in the glcorearb.h header that you should not include glext.h, therefore, you can't access these exotic extensions... BUT: it might be another option in osi, to include somehow these extensions if you want to mess with them... i don't think it would be hard to implement.

For both modes, you can still disable every bit of OpenGL with the osiGlDisable.h file.

These are my thoughts on the matter, any feedback, opinions, is REALLY appreciated.

[alec101]

M'kay, things are getting close to be done in this issue.

• OSI by default will be in coreARB mode, every deprecated stuff will be out from the code.
• If you want legacy/deprecated stuff you #define OSI_USE_GL_LEGACY before #include "osinteraction.h
• If you want exotic (dunno a good term for them) extensions in coreARB mode, you #define OSI_USE_GL_EXT_EXOTIC. These extensions include everything, but not any ARB extension. If this is a shitty name, i'm open for suggestions.
• Any extension/feature can still be disabled completely from your code with the help of osiGlDisable.h header file

Any feedback / questions / modifications / proposals are highly appreciated!