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ece8d2bb05
- Don't create a temporary context first; this was probably due to Windows needing one to get the address of wglCreateContextAttribsARB(), but that's a unique quirk of WGL, and doesn't apply to glX. The glX spec explicitly says you have to get a function pointer that works with any context from glXGetProcAddress(), including when no context exists. - Properly check for the GLX_ARB_create_context instead of just looking for a non-NULL glXCreateContextAttribsARB()...some implementations, like Mesa, never return NULL for function lookups (Mesa returns pointers into a jump table that is filled out when the GL is initialized; since you can look up functions before you have a valid context, it can't definitely say a function isn't valid at that point).
Simple DirectMedia Layer
(SDL)
Version 2.0
---
http://www.libsdl.org/
Simple DirectMedia Layer is a cross-platform development library designed
to provide low level access to audio, keyboard, mouse, joystick, and graphics
hardware via OpenGL and Direct3D. It is used by video playback software,
emulators, and popular games including Valve's award winning catalog
and many Humble Bundle games.
More extensive documentation is available in the docs directory, starting
with README.md
Enjoy!
Sam Lantinga (slouken@libsdl.org)