search

ajstarks / openvg

Tools for exploring OpenVG
Other
414 stars 85 forks source link

Enabling swapInterval? #53

Closed ykram closed 8 years ago

ykram commented 8 years ago

Apologies if this has is documented somewhere but as I couldn't find it I figured I'd raise an issue regarding enablement of vsync.

Is there anyway to enable vsync for apps this library? Right now I'm set to call eglSwapInterval in oglinit() but I'm curious if there's a way to programatically do it without having to modify, recompile and re-link to the modified library.

paeryn commented 8 years ago

Swapinterval is 1 by default and if you need any other value you need to modify oglinit as you said since the display handle isn't exposed outside of the library. Any value other than 0 should force the screen update to by vsynced, so it should already be enabled.

ykram commented 8 years ago

Where is the call to the vsync call if you don't mind me asking? I looked but couldn't find it called anywhere.

On Thursday, May 19, 2016, Paeryn notifications@github.com wrote:

Swapinterval is 1 by default and if you need any other value you need to modify oglinit as you said since the display handle isn't exposed outside of the library. Any value other than 0 should force the screen update to by vsynced, so it should already be enabled.

— You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub https://github.com/ajstarks/openvg/issues/53#issuecomment-220389632

paeryn commented 8 years ago

Vsync automatically happens when the swapinterval is > 0. There is no call to eglSwapInterval at the moment as it defaults to 1 anyway (which is by far the most common setting). There is no separate call to enable or disable vsync, if you want it enabled set a swapinterval > 0 (which is how it is set up) , to disable it set the swapinterval to 0.

ykram commented 8 years ago

Ah, got it. Thanks for pointing that out.