Add GenericEvent extension to Xext.

This adds (unconditional) support for the GE extension. Anything from now on
that sends events in MPX will have to use the GE extension. No GE, no MPX
events. GE is not actually used yet from anywhere with this commit.

You will need to update x11proto, xextproto, libX11, libXext and xcb to the
matching xge branches. Things will _NOT_ work without the updated protocol
headers and libraries.

1 files changed, 64 insertions, 0 deletions

diff --git a/Xext/geext.h b/Xext/geext.h
new file mode 100644
index 000000000..53aa21c8b
--- /dev/null
+++ b/Xext/geext.h
@@ -0,0 +1,64 @@
+/* 
+
+Copyright 2007 Peter Hutterer <peter@cs.unisa.edu.au>
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the author shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from the author.
+
+*/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#ifndef _GEEXT_H_
+#define _GEEXT_H_
+#include <X11/extensions/geproto.h>
+
+/* Returns the extension offset from the event */
+#define GEEXT(ev) (((xGenericEvent*)(ev))->extension)
+
+#define GEEXTIDX(ev) (GEEXT(ev) & 0x7F)
+/* Typecast to generic event */
+#define GEV(ev) ((xGenericEvent*)(ev))
+/* True if mask is set for extension on window */
+#define GEMaskIsSet(pWin, extension, mask) \
+    ((pWin)->optional && \
+     (pWin)->optional->geMasks && \
+     ((pWin)->optional->geMasks->eventMasks[(extension) & 0x7F] & (mask)))
+
+/* Returns first client */
+#define GECLIENT(pWin) \
+    (((pWin)->optional) ? (pWin)->optional->geMasks->geClients : NULL)
+
+/* Interface for other extensions */
+Mask GENextMask(int extension);
+void GEWindowSetMask(ClientPtr pClient, WindowPtr pWin, int extension, Mask mask);
+void GERegisterExtension(
+        int extension,
+        void (*ev_dispatch)(xGenericEvent* from, xGenericEvent* to));
+void GEInitEvent(xGenericEvent* ev, int extension);
+
+
+void GEExtensionInit(void);
+
+#endif /* _GEEXT_H_ */