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authorEric Anholt <eric@anholt.net>2007-01-08 13:41:20 -0800
committerEric Anholt <eric@anholt.net>2007-01-08 13:41:20 -0800
commit7a6e37818a6854ec4d74f80ce5053e04b7ae75ba (patch)
tree6bf8598a93d6478cb95d42e0d5253d190c046810
parentdf33455a4506362eff4d393dc7d58c9d73ddf870 (diff)
downloadxorg-proto-damageproto-7a6e37818a6854ec4d74f80ce5053e04b7ae75ba.tar.gz
Documentation and copyright updates for 1.1 protocol (and other fixes).
-rw-r--r--AUTHORS1
-rw-r--r--COPYING1
-rw-r--r--INSTALL2
-rw-r--r--NEWS2
-rw-r--r--README10
-rw-r--r--damageproto.h1
-rw-r--r--protocol32
7 files changed, 38 insertions, 11 deletions
diff --git a/AUTHORS b/AUTHORS
index 8e18f9b..78b329f 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -1 +1,2 @@
Keith Packard, HP
+Eric Anholt, Intel
diff --git a/COPYING b/COPYING
index 830e297..a44e065 100644
--- a/COPYING
+++ b/COPYING
@@ -1,6 +1,7 @@
$Id: COPYING,v 1.1 2003-10-24 06:16:46 keithp Exp $
Copyright © 2001,2003 Keith Packard
+Copyright © 2007 Eric Anholt
Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
diff --git a/INSTALL b/INSTALL
index b94098a..05868b6 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,4 +1,4 @@
-Render is built with the traditional configure script:
+Damage is built with the traditional configure script:
$ ./configure --prefix=/usr/X11R6
diff --git a/NEWS b/NEWS
index e69de29..25efe0b 100644
--- a/NEWS
+++ b/NEWS
@@ -0,0 +1,2 @@
+2004-01-05: Version 1.0 released.
+2007-01-08: Version 1.1 released, adding the DamagePost request. \ No newline at end of file
diff --git a/README b/README
index 9968c6b..6f1ad4b 100644
--- a/README
+++ b/README
@@ -1,9 +1,9 @@
- RandR
- X RandR Extension
- Version 1.0
- 2002-10-4
+ Damage
+ X Damage Extension
+ Version 1.1
+ 2007-01-08
-This package contains header files and documentation for the X RandR
+This package contains header files and documentation for the X Damage
extension. Library and server implementations are separate.
Keith Packard
diff --git a/damageproto.h b/damageproto.h
index 23e1155..c70d270 100644
--- a/damageproto.h
+++ b/damageproto.h
@@ -2,6 +2,7 @@
* $Id: damageproto.h,v 1.1 2003-10-24 06:16:46 keithp Exp $
*
* Copyright © 2003 Keith Packard
+ * Copyright © 2007 Eric Anholt
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
diff --git a/protocol b/protocol
index 7d59e16..58e255b 100644
--- a/protocol
+++ b/protocol
@@ -1,11 +1,15 @@
The DAMAGE Extension
- Protocol Version 0.0
+ Protocol Version 1.1
Document Revision 1
- 2003-11-03
+ 2007-01-08
Keith Packard
keithp@keithp.com
+ Eric Anholt
+ eric@anholt.net
+ Open Source Technology Center
+ Intel Corporation
1. Introduction
Monitoring the regions affected by rendering has wide-spread use, from
@@ -63,10 +67,23 @@ within the bounds of the window. In a system with a single frame buffer
holding all windows, this means that damage will accumulate for all
rendering operations that lie within the visible part of the window.
-The precise reason for this architecture will be made clear in the XSPLITTREE
-extension which will provide multiple pixel storage areas for the screen
+The precise reason for this architecture is to enable the Composite
+extension which provides multiple pixel storage areas for the screen
contents.
+3.1 Additions in the 1.1 version of the protocol
+
+Damage is automatically computed by the X Server for X rendering operations,
+but direct rendering extensions have allowed clients to perform rendering
+outside of the control of the X Server. The 1.1 version of the protocol
+added a request to allow direct rendering clients to report damage to a
+drawable. Some direct rendering clients, due to architectural limitations,
+always perform rendering to the root window, even in when it should be
+performed to the backing pixmap in the Composite case. To provide
+less-incorrect rendering in this cases, the direct rendering client should
+translate its damage region to screen coordinates and report the damage against
+the root window rather than the drawable.
+
4. Data types
The "Damage" object holds any accumulated damage region and reflects the
@@ -196,4 +213,9 @@ DamagePost
Reports damage of the region within the given drawable. This may be
used by direct rendering clients to report damage that the server would
- otherwise be unaware of.
+ otherwise be unaware of. The damage region is relative to the origin
+ of the drawable.
+
+ Damage posted in this way will appear in DamageNotify events as normal,
+ and also in server internal damage tracking (for shadow framebuffer
+ updates, pixmap damage, and other uses).