interesting:
this extension that you mentioned:
"EXT_swap_control_tear:
* XBox-style Swap-tear for the PC.:
* Requested by John Carmack.
* First driver support a few weeks later
* All vendors supported within a few months
wglSwapIntervalEXT(-1); // Try to vsync, but tear if late!"
"MakeCurrent is very expensive—try not to call even once/twice per
frame."
"Issuing certain calls causes the shim to need to flush all work,
then synchronize with the server thread.
This is very expensive" (they go on to mention some known-bad functions
for this)
Lots of good ideas for creating a context correctly.
"Force-inline is your friend—many of the functions you’ll be
implementing are among the most-called functions in the
application." (obviously this is something to determine through
profiling)
"profile profile profile"
On Thu, 2013-04-04 at 09:39 -0400, RJ Ryan wrote:
> Some useful info there:
> https://developer.nvidia.com/sites/default/files/akamai/gamedev/docs/Porting%20Source%20to%20Linux.pdf
>
>
>
> In particular this extension looked interesting:
> http://www.opengl.org/registry/specs/EXT/wgl_swap_control_tear.txt
>
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