Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

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

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 122 insertions, 0 deletions

diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/r300/radeon_lock.h b/nx-X11/extras/Mesa/src/mesa/drivers/dri/r300/radeon_lock.h
new file mode 100644
index 000000000..c9acbce0c
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/r300/radeon_lock.h
@@ -0,0 +1,122 @@
+/*
+Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
+
+The Weather Channel (TM) funded Tungsten Graphics to develop the
+initial release of the Radeon 8500 driver under the XFree86 license.
+This notice must be preserved.
+
+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 THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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:
+ *   Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#ifndef __RADEON_LOCK_H__
+#define __RADEON_LOCK_H__
+
+#include "r200_ioctl.h"
+
+extern void radeonGetLock(radeonContextPtr radeon, GLuint flags);
+
+/* Turn DEBUG_LOCKING on to find locking conflicts.
+ */
+#define DEBUG_LOCKING	0
+
+#if DEBUG_LOCKING
+extern char *prevLockFile;
+extern int prevLockLine;
+
+#define DEBUG_LOCK()							\
+   do {									\
+      prevLockFile = (__FILE__);					\
+      prevLockLine = (__LINE__);					\
+   } while (0)
+
+#define DEBUG_RESET()							\
+   do {									\
+      prevLockFile = 0;							\
+      prevLockLine = 0;							\
+   } while (0)
+
+#define DEBUG_CHECK_LOCK()						\
+   do {									\
+      if ( prevLockFile ) {						\
+	 fprintf( stderr,						\
+		  "LOCK SET!\n\tPrevious %s:%d\n\tCurrent: %s:%d\n",	\
+		  prevLockFile, prevLockLine, __FILE__, __LINE__ );	\
+	 exit( 1 );							\
+      }									\
+   } while (0)
+
+#else
+
+#define DEBUG_LOCK()
+#define DEBUG_RESET()
+#define DEBUG_CHECK_LOCK()
+
+#endif
+
+/*
+ * !!! We may want to separate locks from locks with validation.  This
+ * could be used to improve performance for those things commands that
+ * do not do any drawing !!!
+ */
+
+/* Lock the hardware and validate our state.
+ */
+#define LOCK_HARDWARE( radeon )						\
+	do {								\
+		char __ret = 0;						\
+		DEBUG_CHECK_LOCK();					\
+		DRM_CAS( (radeon)->dri.hwLock, (radeon)->dri.hwContext,	\
+			(DRM_LOCK_HELD | (radeon)->dri.hwContext), __ret ); \
+		if ( __ret )						\
+			radeonGetLock( (radeon), 0 );			\
+		DEBUG_LOCK();						\
+	} while (0)
+
+#if R200_MERGED
+#define UNLOCK_HARDWARE( radeon )					\
+	do {								\
+		DRM_UNLOCK( (radeon)->dri.fd,				\
+			(radeon)->dri.hwLock,				\
+			(radeon)->dri.hwContext );			\
+		DEBUG_RESET();						\
+		if (IS_FAMILY_R200((radeon))) {				\
+			r200ContextPtr __r200 = (r200ContextPtr)(radeon); \
+			if (__r200->save_on_next_unlock)		\
+				r200SaveHwState( __r200 );		\
+			__r200->save_on_next_unlock = GL_FALSE;		\
+		}							\
+	} while (0)
+#else
+#define UNLOCK_HARDWARE( radeon )					\
+	do {								\
+		DRM_UNLOCK( (radeon)->dri.fd,				\
+			(radeon)->dri.hwLock,				\
+			(radeon)->dri.hwContext );			\
+		DEBUG_RESET();						\
+	} while (0)
+#endif
+#endif				/* __RADEON_LOCK_H__ */