From f4092abdf94af6a99aff944d6264bc1284e8bdd4 Mon Sep 17 00:00:00 2001
From: Reinhard Tartler <siretart@tauware.de>
Date: Mon, 10 Oct 2011 17:43:39 +0200
Subject: Imported nx-X11-3.1.0-1.tar.gz

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository
---
 .../Mesa/src/mesa/drivers/dri/sis/sis_lock.c       | 76 ++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 nx-X11/extras/Mesa/src/mesa/drivers/dri/sis/sis_lock.c

(limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/sis/sis_lock.c')

diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/sis/sis_lock.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/sis/sis_lock.c
new file mode 100644
index 000000000..f598e52d9
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/sis/sis_lock.c
@@ -0,0 +1,76 @@
+/* $XFree86$ */
+/**************************************************************************
+
+Copyright 2003 Eric Anholt
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+on the rights to use, copy, modify, merge, publish, distribute, sub
+license, and/or sell copies of the Software, and to permit persons to whom
+the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ERIC ANHOLT 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.
+
+**************************************************************************/
+
+/*
+ * Authors:
+ *   Eric Anholt <anholt@FreeBSD.org>
+ */
+
+#include "context.h"
+#include "sis_context.h"
+#include "sis_lock.h"
+#include "sis_dd.h"
+#include "sis_state.h"
+
+/* Update the hardware state.  This is called if another context has
+ * grabbed the hardware lock, which includes the X server.  This
+ * function also updates the driver's window state after the X server
+ * moves, resizes or restacks a window -- the change will be reflected
+ * in the drawable position and clip rects.  Since the X server grabs
+ * the hardware lock when it changes the window state, this routine will
+ * automatically be called after such a change.
+ */
+void
+sisGetLock( sisContextPtr smesa, GLuint flags )
+{
+   __DRIdrawablePrivate *dPriv = smesa->driDrawable;
+   __DRIscreenPrivate *sPriv = smesa->driScreen;
+   SISSAREAPrivPtr sarea = smesa->sarea;
+
+   drmGetLock( smesa->driFd, smesa->hHWContext, flags );
+
+   /* The window might have moved, so we might need to get new clip
+    * rects.
+    *
+    * NOTE: This releases and regrabs the hw lock to allow the X server
+    * to respond to the DRI protocol request for new drawable info.
+    * Since the hardware state depends on having the latest drawable
+    * clip rects, all state checking must be done _after_ this call.
+    */
+   DRI_VALIDATE_DRAWABLE_INFO( sPriv, dPriv );
+
+   if ( smesa->lastStamp != dPriv->lastStamp ) {
+      sisUpdateBufferSize( smesa );
+      sisUpdateClipping( smesa->glCtx );
+      sisDDDrawBuffer( smesa->glCtx, smesa->glCtx->Color.DrawBuffer[0] );
+      smesa->lastStamp = dPriv->lastStamp;
+   }
+
+   if ( sarea->CtxOwner != smesa->hHWContext ) {
+      sarea->CtxOwner = smesa->hHWContext;
+      smesa->GlobalFlag = GFLAG_ALL;
+   }
+}
-- 
cgit v1.2.3