compiz: Changes to 'master'

[David Reveman]

 include/compiz.h |    6 +++++
 src/display.c    |    8 +++----
 src/paint.c      |   60 +++++++++++++++++++++++++++++++++++++++++++++----------
 src/window.c     |    4 +--
 4 files changed, 62 insertions(+), 16 deletions(-)

New commits:
commit 80f30c170d60d029fc3c08648fba55dabb145c8b
Author: David Reveman <davidr at novell.com>
Date:   Tue Mar 6 11:49:37 2007 +0100

    Avoid some duplicate code.

commit e5b4074f7a1643b63a3f7e646ee8ec396121156b
Author: David Reveman <davidr at novell.com>
Date:   Tue Mar 6 11:48:34 2007 +0100

    Avoid overflow in opacity calculations by changing range of
    opacityFactor from 0-OPAQUE to 0-0xff.

commit ee6188e1b9edb1f5edc7efd9cacb3bbdbef72408
Author: Dennis Kasprzyk <onestone at beryl-project.org>
Date:   Tue Mar 6 10:07:44 2007 +0100

    Use occlusion detection on PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS_MASK.

commit 93c322ffdaf7ba612fce47b218a61aeb08092226
Author: Dennis Kasprzyk <onestone at beryl-project.org>
Date:   Tue Mar 6 10:06:06 2007 +0100

    Added occlusion detection for PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS_MASK
    screen paints.

commit e50339cfbdc0346b1d92f696410da7fccd2027c4
Author: Dennis Kasprzyk <onestone at beryl-project.org>
Date:   Tue Mar 6 10:03:03 2007 +0100

    Added occlusion detection handling to paintWindow.

commit b845e3f61198437c08b9878b0e06252366cecbb4
Author: Dennis Kasprzyk <onestone at beryl-project.org>
Date:   Tue Mar 6 09:58:49 2007 +0100

    Added occlusion detection window paint mask.