Here's a compiz patch to assume the presence of a sane glXSwapBuffer
implementation (i.e. one that uses page flips synchronized to vblank).
It adds --no-wait and --always-swap options, which, if used with the
swapbuffers patchset, will make compiz use the page flipping path for
tear-free drawing.
Jesse
diff -X /home/jbarnes/dontdiff -Naur compiz-0.8.2.orig/include/compiz-core.h compiz-0.8.2/include/compiz-core.h
--- compiz-0.8.2.orig/include/compiz-core.h 2009-05-06 16:18:29.000000000 -0700
+++ compiz-0.8.2/include/compiz-core.h 2009-05-07 11:35:37.000000000 -0700
@@ -219,6 +219,8 @@
extern Bool noDetection;
extern Bool useDesktopHints;
extern Bool onlyCurrentScreen;
+extern Bool noWait;
+extern Bool alwaysSwap;
extern int defaultRefreshRate;
extern char *defaultTextureFilter;
diff -X /home/jbarnes/dontdiff -Naur compiz-0.8.2.orig/src/display.c compiz-0.8.2/src/display.c
--- compiz-0.8.2.orig/src/display.c 2009-05-06 16:18:29.000000000 -0700
+++ compiz-0.8.2/src/display.c 2009-05-07 11:44:51.000000000 -0700
@@ -1553,9 +1553,11 @@
targetScreen = NULL;
targetOutput = &s->outputDev[0];
- waitForVideoSync (s);
+ if (!(noWait == TRUE))
+ waitForVideoSync (s);
- if (mask & COMP_SCREEN_DAMAGE_ALL_MASK)
+ if ((mask & COMP_SCREEN_DAMAGE_ALL_MASK) ||
+ (alwaysSwap == TRUE))
{
glXSwapBuffers (d->display, s->output);
}
diff -X /home/jbarnes/dontdiff -Naur compiz-0.8.2.orig/src/main.c compiz-0.8.2/src/main.c
--- compiz-0.8.2.orig/src/main.c 2009-02-16 05:57:22.000000000 -0800
+++ compiz-0.8.2/src/main.c 2009-05-07 11:34:56.000000000 -0700
@@ -63,6 +63,8 @@
Bool noDetection = FALSE;
Bool useDesktopHints = FALSE;
Bool onlyCurrentScreen = FALSE;
+Bool noWait = FALSE;
+Bool alwaysSwap = FALSE;
static Bool debugOutput = FALSE;
#ifdef USE_COW
@@ -87,6 +89,8 @@
"[--sm-disable] "
"[--sm-client-id ID] "
"[--only-current-screen]\n "
+ "[--no-wait] "
+ "[--always-swap]\n "
#ifdef USE_COW
" [--use-root-window] "
@@ -373,6 +377,14 @@
if (i + 1 < argc)
backgroundImage = argv[++i];
}
+ else if (!strcmp (argv[i], "--no-wait"))
+ {
+ noWait = TRUE;
+ }
+ else if (!strcmp (argv[i], "--always-swap"))
+ {
+ alwaysSwap = TRUE;
+ }
else if (*argv[i] == '-')
{
compLogMessage ("core", CompLogLevelWarn,
------------------------------------------------------------------------------
The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your
production scanning environment may not be a perfect world - but thanks to
Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700
Series Scanner you'll get full speed at 300 dpi even with all image
processing features enabled. http://p.sf.net/sfu/kodak-com
--
_______________________________________________
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel
