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/mach64/mach64_lock.c | 93 ++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_lock.c

(limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_lock.c')

diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_lock.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_lock.c
new file mode 100644
index 000000000..3d41d71b3
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_lock.c
@@ -0,0 +1,93 @@
+/* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */
+/*
+ * Copyright 2000 Gareth Hughes
+ * 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
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * GARETH HUGHES 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:
+ *	Gareth Hughes <gareth@valinux.com>
+ *	Leif Delgass <ldelgass@retinalburn.net>
+ *	José Fonseca <j_r_fonseca@yahoo.co.uk>
+ */
+
+#include "mach64_context.h"
+#include "mach64_state.h"
+#include "mach64_lock.h"
+#include "mach64_tex.h"
+
+#if DEBUG_LOCKING
+char *prevLockFile = NULL;
+int   prevLockLine = 0;
+#endif
+
+
+/* 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 mach64GetLock( mach64ContextPtr mmesa, GLuint flags )
+{
+   __DRIdrawablePrivate *dPriv = mmesa->driDrawable;
+   __DRIscreenPrivate *sPriv = mmesa->driScreen;
+   drm_mach64_sarea_t *sarea = mmesa->sarea;
+   int i;
+
+   drmGetLock( mmesa->driFd, mmesa->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 ( mmesa->lastStamp != dPriv->lastStamp ) {
+      mmesa->lastStamp = dPriv->lastStamp;
+      if (mmesa->glCtx->DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT)
+         mach64SetCliprects( mmesa->glCtx, GL_BACK_LEFT );
+      else
+         mach64SetCliprects( mmesa->glCtx, GL_FRONT_LEFT );
+      mach64CalcViewport( mmesa->glCtx );
+   }
+
+   mmesa->dirty |= (MACH64_UPLOAD_CONTEXT
+		    | MACH64_UPLOAD_MISC
+		    | MACH64_UPLOAD_CLIPRECTS);
+
+   if ( sarea->ctx_owner != mmesa->hHWContext ) {
+      sarea->ctx_owner = mmesa->hHWContext;
+      mmesa->dirty = MACH64_UPLOAD_ALL;
+   }
+
+   for ( i = mmesa->firstTexHeap ; i < mmesa->lastTexHeap ; i++ ) {
+      if ( mmesa->texHeap[i] && (sarea->tex_age[i] != mmesa->lastTexAge[i]) ) {
+	 mach64AgeTextures( mmesa, i );
+      }
+   }
+}
-- 
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