20 Jan
2004
20 Jan
'04
12:27 p.m.
On Tuesday 20 January 2004 16.53, Martijn Sipkema wrote:
[...]
Yes... The driver actually contains that kind of code already. It's
used when rendering directly into a window (ie single buffered) that
is partially covered by other windows, so that the OpenGL area
becomes non-rectangular. (Seems like most drivers simply don't
support single buffering in windowed mode, thus avoiding this stuff
entirely.)
I accidentally found out because the retrace sync is done in the wrong
place. The driver ends up sync'ing once for each one of the sub
rectangles that the window is split into... *hehe*
//David Olofson - Programmer, Composer, Open Source Advocate
.- Audiality -----------------------------------------------.
| Free/Open Source audio engine for games and multimedia. |
| MIDI, modular synthesis, real time effects, scripting,... |
`-----------------------------------> http://audiality.org -'
--- http://olofson.net --- http://www.reologica.se ---
The driver is
supposed to just clip at 2048x2048. Some tester
concluded it does on Windoze, but I haven't tried it on the Linux
drivers. (Though they even have the same bugs as the Windows
drivers, so I'd guess they're pretty closely related...)
Perhaps, with a performance penalty, these very large windows could
be rendered in multiple passes...