On 11 Nov 2002, Michel [ISO-8859-1] Dänzer wrote:
On Son, 2002-11-10 at 19:42, Kral Stefan wrote:
At the moment, some XFree86-drivers force synchronization with
the vertical retrace of the CRT whenever AdjustFrame is called,
whereas some drivers do not.
I think that a uniform
Hello,
At the moment, some XFree86-drivers force synchronization with
the vertical retrace of the CRT whenever AdjustFrame is called,
whereas some drivers do not.
I think that a uniform behaviour would be favorable.
Tests have shown that the modifications necessary are trivial
and that the
On Mon, 4 Nov 2002 [EMAIL PROTECTED] wrote:
You assume wrongly that things must happen in the vertical blanking
period. Since the screen is traced from the top on monitors, all an
operation has to do to get a flickerfree update, is to not collide
with the screen tracing. F.ex. it could draw
On Thu, 31 Oct 2002 [EMAIL PROTECTED] wrote:
1. Is there any way to detect vertical retrace in X so that
the tearing down of the image can be prevented ? [...]
That's exactly what I need for my application.
So I came up with the following hack, (ab-)using the
XF86VidMode-Extension:
1) Get the
On Fri, 1 Nov 2002, Scott Long wrote:
[...]
I guess I'm proposing some sort of X extension that allows a
particular X request to be tagged as synced to vblank. For example a
XCopyArea request could be preceded by another request (call it
XRequestVerticalSync) that indicates to the server
On Wed, 23 Oct 2002, Matan Ziv-Av wrote:
Svgalib's kernel module has an ioctl that waits for retrace, using the
card's interrupt. This functionality of the module is independent of
svgalib, and can be used also in X11, text mode or fbdev.
The interrupt is supported on Matrox, SiS, Rendition
Hi!
I want to do a fast, fluent animation with XFree86.
To avoid tearing effects, I need to do two things:
1) Use some sort of double-buffering techniqueDONE
(I use Xdbe or a pixmap+XCopyArea for that)
2) Synchronize the swapping of the buffers with TBD
Hi!
I want to do a fast, fluent animation with XFree86.
To avoid tearing effects, I need to do two things:
1) Use some sort of double-buffering techniqueDONE
(I use Xdbe or a pixmap+XCopyArea for that)
2) Synchronize the swapping of the buffers with TBD
