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Bug 2283

Summary: Cannot create 3.3 or 4.1 context on Mac OS X 10.9
Product: SDL Reporter: BurnSpamAddress
Component: videoAssignee: Ryan C. Gordon <icculus>
Status: RESOLVED DUPLICATE QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2 CC: amaranth72
Version: 2.0.1   
Hardware: x86   
OS: Mac OS X (All)   

Description BurnSpamAddress 2013-12-03 06:54:49 UTC 
Mac OS X 10.9 adds support for OpenGL 3.3 and 4.1 [1]. However, SDL refuses to create any context with version > 3.2 with the message "OpenGL > 3.2 is not supported on this platform".

If I create a 3.2 context, I get version 4.1. However, the error message is incorrect and misleading.

SDL should probably try to create the context and only report a failure if that fails.


[1] https://developer.apple.com/graphicsimaging/opengl/capabilities/
Comment 1 Sam Lantinga 2013-12-03 07:51:29 UTC 
Hey Ryan, didn't you already fix this?
Comment 2 Ryan C. Gordon 2013-12-03 08:54:54 UTC 
(In reply to Sam Lantinga from comment #1)
> Hey Ryan, didn't you already fix this?

I did, it's in Bug #1942.

(In reply to BurnSpamAddress from comment #0)
> SDL should probably try to create the context and only report a failure if
> that fails.

OS X doesn't offer a way to ask for an arbitrary version: just explicitly 3.2, and now with Mavericks, 4.1. The numbers happens to match up somewhat (0x0302 and 0x0401, I think), but we can't safely plug arbitrary numbers in there and expect it to work, so we have to update our list of available versions every time a new OS X comes out.

--ryan.

*** This bug has been marked as a duplicate of bug 1942 ***
Comment 3 Alex Szpakowski 2013-12-03 09:06:13 UTC 
Actually, SDL's code for requesting a 4.1 context on OS X always gives back the software renderer for me, despite the fact that I can create a 4.1 context by requesting 3.2.
The value SDL uses as an NSOpenGLPixelFormatAttribute when requesting 4.1 isn't actually officially supported, apparently.

I have more description and a patch here: https://bugzilla.libsdl.org/show_bug.cgi?id=2197#c2