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Bug 3173

Summary: SDL_GL_GetAttribute overwrites error code from SDL_GL_GetProcAddress
Product: SDL Reporter: Yann Dirson <ydirson>
Component: videoAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: HG 2.0   
Hardware: All   
OS: All   

Description Yann Dirson 2015-11-11 22:24:58 UTC 
When SDL_GL_GetProcAddress returns in error, the cause of the error is overwritten
in GL_GL_GetAttribute, reporting to the user "Failed getting OpenGL glGetString entry point", whereas the original "OpenGL library not loaded" never makes it
to the user.

Pushed a fix to:
https://github.com/O-Computers/SDL/commit/f94cb13708ef4d236f8a2a330135b9b3a47db204


Note that the "OpenGL library not loaded" error looks like no root cause either,
and I'm still puzzled by the code path used: I'm forcing opengles2 renderer on
the x11 video driver on a rpi2, as in https://bugzilla.libsdl.org/3169, and although I now know that I must force the use of the RPI video driver instead
of the x11 one, I suspect even more accurate info can be given to user.
Comment 1 Sam Lantinga 2017-08-12 22:56:10 UTC 
Fixed, thanks!
https://hg.libsdl.org/SDL/rev/00c7bb05a67c