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Bug 3326

Summary: Cannot identify errors with SDL_GL_GetSwapInterval
Product: SDL Reporter: Intellectual Kitty <IntellectualKitty>
Component: videoAssignee: Sam Lantinga <slouken>
Status: NEW --- QA Contact: Sam Lantinga <slouken>
Severity: minor    
Priority: P2 CC: philipp.wiesemann
Version: 2.0.4   
Hardware: All   
OS: All   

Description Intellectual Kitty 2016-05-09 06:57:32 UTC 
SDL_GL_SetSwapInterval allows -1 as a legitimate value in order to specify "late swap tearing."  This means that SDL_GL_GetSwapInterval should also be able to return -1 as a legitimate value, but, unfortunately, -1 can also be returned in case of error.  This makes it difficult or impossible to determine which case is which.
Comment 1 Philipp Wiesemann 2016-05-11 21:11:15 UTC 
SDL_GL_GetSwapInterval() returns 0 in case of an error (the wiki was outdated).

However, this still does not solve the problem. :)
Comment 2 Intellectual Kitty 2016-05-12 17:07:57 UTC 
No one uses a swap interval of 0 anymore.  That's just so 2015. :)