Refactored interface to OpenGL with a minimum requirement of version 1.4
If the implementation reports a lower than required version; display a critical message and gracefully abort startup.
Reworked GL_state with a more practical distinction between high-level "features" (abstract) and the implementation/vendor specific extensions used to implement them. Availability of features considered static post initialization.
Multitexture functionaliy assumed present.
Cleaned up GL initialization centralising all default state configuration in Sys_GLConfigureDefaultState.
Pruned dead code for unused extensions.
Todo: I've left the texture combiner stuff alone for now as I've no way to test any potential changes on anything other than my main dev system presently (which effectively means the NVIDIA paths only).
Added by danij over 13 years ago
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Todo: I've left the texture combiner stuff alone for now as I've no way to test any potential changes on anything other than my main dev system presently (which effectively means the NVIDIA paths only).