xserver: Branch 'server-1.7-branch' - 3 commits

[Peter Hutterer]

 configure.ac                  |    3 +++
 dix/getevents.c               |   13 +++++++++++++
 hw/xfree86/modes/xf86Rotate.c |   10 +++-------
 3 files changed, 19 insertions(+), 7 deletions(-)

New commits:
commit 15b4faff281ad8abce6b32fe2fc855eb6da42476
Author: Peter Hutterer <peter.hutterer at who-t.net>
Date:   Thu Oct 1 21:19:11 2009 +1000

    dix: force a minimum of 0 for screen coordinates.
    
    Currently the root coordinates may fall into ]-1..0] if the subpixel
    remainder is less than 0. Screen coordinates mustn't go below 0, so use
    miPointerSetPosition to cap off the remainder if the coordinates are below
    0.
    
    This is cheating a bit, a more comprehensive solution to deal with subpixels
    correctly when crossing screens is needed. For now, this'll do.
    
    Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
    Acked-by: Simon Thum <simon.thum at gmx.de>
    (cherry picked from commit 45f447dafded5adfe11b7df3325c2d8f6ae0639b)

diff --git a/dix/getevents.c b/dix/getevents.c
index 5224d31..2df32e8 100644
--- a/dix/getevents.c
+++ b/dix/getevents.c
@@ -781,6 +781,19 @@ positionSprite(DeviceIntPtr dev, int *x, int *y, float x_frac, float y_frac,
         *screeny_frac = dev->last.remainder[1];
     }
 
+    /* Hit the left screen edge? */
+    if (*screenx <= 0 && *screenx_frac < 0.0f)
+    {
+        *screenx_frac = 0.0f;
+        x_frac = 0.0f;
+    }
+    if (*screeny <= 0 && *screeny_frac < 0.0f)
+    {
+        *screeny_frac = 0.0f;
+        y_frac = 0.0f;
+    }
+
+
     old_screenx = *screenx;
     old_screeny = *screeny;
     /* This takes care of crossing screens for us, as well as clipping
commit 3788113618977bdc83e3ec1e7ca3160bad9a0d13
Author: Peter Hutterer <peter.hutterer at who-t.net>
Date:   Fri Oct 2 09:34:24 2009 +1000

    configure: if xnest was requested but modules weren't found, fail.
    
    Tested-by: Xavier Chantry <shiningxc at gmail.com>
    Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
    Acked-by: Julien Cristau <jcristau at debian.org>
    (cherry picked from commit 64fe5784b49347e1fd27b0c463be5c16557594c9)

diff --git a/configure.ac b/configure.ac
index 9517595..8145c64 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1373,6 +1373,9 @@ AC_MSG_RESULT([$XNEST])
 AM_CONDITIONAL(XNEST, [test "x$XNEST" = xyes])
 
 if test "x$XNEST" = xyes; then
+	if test "x$have_xnest" = xno; then
+		AC_MSG_ERROR([Xnest build explicitly requested, but required modules not found.])
+	fi
 	XNEST_LIBS="$FB_LIB $FIXES_LIB $MI_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB $DIX_LIB $MAIN_LIB $OS_LIB $CONFIG_LIB"
 	XNEST_SYS_LIBS="$XNESTMODULES_LIBS $GLX_SYS_LIBS"
 	AC_SUBST([XNEST_LIBS])
commit c3034dc3af450802dda156136d9fabbc1cc58836
Author: Dave Airlie <airlied at redhat.com>
Date:   Thu Oct 1 15:25:55 2009 +1000

    rotate: drop unwrapping inside block handler.
    
    Keith has shown half the block handlers wrappers are wrong, also
    dynamic wrapping/unwrapping from what I can see will happen after
    the drivers, so its really accidental ABI, that we can't change
    now without modifing drivers. So be safe for 1.7.
    
    Signed-off-by: Dave Airlie <airlied at redhat.com>
    Declared-as-sane-by: Keith Packard <keithp at keithp.com>
    Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
    (cherry picked from commit 3ebb82d61c2b56e8f7145443a552a4e913bbfc80)

diff --git a/hw/xfree86/modes/xf86Rotate.c b/hw/xfree86/modes/xf86Rotate.c
index 9e65c99..5de6b0c 100644
--- a/hw/xfree86/modes/xf86Rotate.c
+++ b/hw/xfree86/modes/xf86Rotate.c
@@ -268,13 +268,9 @@ xf86RotateBlockHandler(int screenNum, pointer blockData,
     rotation_active = xf86RotateRedisplay(pScreen);
     pScreen->BlockHandler = xf86_config->BlockHandler;
     (*pScreen->BlockHandler) (screenNum, blockData, pTimeout, pReadmask);
-    if (rotation_active) {
-	/* Re-wrap if rotation is still happening */
-	xf86_config->BlockHandler = pScreen->BlockHandler;
-	pScreen->BlockHandler = xf86RotateBlockHandler;
-    } else {
-	xf86_config->BlockHandler = NULL;
-    }
+    /* cannot avoid re-wrapping until all wrapping is audited */
+    xf86_config->BlockHandler = pScreen->BlockHandler;
+    pScreen->BlockHandler = xf86RotateBlockHandler;
 }
 
 void