Re: [Mesa-dev] What use do swap interval 1 and OML_sync_control divisor and remainder have?

2014-01-29 Thread Stéphane Marchesin
On Fri, Jan 24, 2014 at 4:32 AM, Pekka Paalanen ppaala...@gmail.com wrote: Hi, I am investigating what kind of Wayland protocol extensions would be needed to support proper presentation timing. Looking at existing works, I am wondering about two things whether they have any real use. Where

Re: [Mesa-dev] What use do swap interval 1 and OML_sync_control divisor and remainder have?

2014-01-29 Thread Alexander E. Patrakov
[Just for the sake of argument] 2014-01-28 Pekka Paalanen ppaala...@gmail.com: Hi Ian and Jason On Mon, 27 Jan 2014 12:26:23 -0700 Ian Romanick i...@freedesktop.org wrote: There are a number of theoretical uses, but I don't know that we've ever seen any in the wild. One is video playback.

Re: [Mesa-dev] What use do swap interval 1 and OML_sync_control divisor and remainder have?

2014-01-28 Thread Pekka Paalanen
Hi Ian and Jason On Mon, 27 Jan 2014 12:26:23 -0700 Ian Romanick i...@freedesktop.org wrote: On 01/24/2014 04:32 AM, Pekka Paalanen wrote: Hi, I am investigating what kind of Wayland protocol extensions would be needed to support proper presentation timing. Looking at existing works,

Re: [Mesa-dev] What use do swap interval 1 and OML_sync_control divisor and remainder have?

2014-01-27 Thread Ian Romanick
On 01/24/2014 04:32 AM, Pekka Paalanen wrote: Hi, I am investigating what kind of Wayland protocol extensions would be needed to support proper presentation timing. Looking at existing works, I am wondering about two things whether they have any real use. Where is swap interval (e.g.

Re: [Mesa-dev] What use do swap interval 1 and OML_sync_control divisor and remainder have?

2014-01-26 Thread Jason Ekstrand
I'll just chip in one quick thought. On Jan 24, 2014 6:32 AM, Pekka Paalanen ppaala...@gmail.com wrote: Hi, I am investigating what kind of Wayland protocol extensions would be needed to support proper presentation timing. Looking at existing works, I am wondering about two things whether

[Mesa-dev] What use do swap interval 1 and OML_sync_control divisor and remainder have?

2014-01-24 Thread Pekka Paalanen
Hi, I am investigating what kind of Wayland protocol extensions would be needed to support proper presentation timing. Looking at existing works, I am wondering about two things whether they have any real use. Where is swap interval (e.g. eglSwapInterval) greater than one useful? Intervals 0 and