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| author | marha <marha@users.sourceforge.net> | 2011-04-30 16:21:56 +0000 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2011-04-30 16:21:56 +0000 |
| commit | e4dd9264ee8d4a20eef0eec8c8bf8cff2473b46f (patch) | |
| tree | 1804d7456ba8f200c7e329d4e6aa67ce4fb1649f /mesalib/src/gallium/auxiliary/util/u_pointer.h | |
| parent | 88a78ebea08af461224f815a8380ea5c54186f43 (diff) | |
| parent | 0402d388cb9803652c0f9a52ba7dcb6029fdd0b9 (diff) | |
| download | vcxsrv-e4dd9264ee8d4a20eef0eec8c8bf8cff2473b46f.tar.gz vcxsrv-e4dd9264ee8d4a20eef0eec8c8bf8cff2473b46f.tar.bz2 vcxsrv-e4dd9264ee8d4a20eef0eec8c8bf8cff2473b46f.zip | |
svn merge ^/branches/released .
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_pointer.h')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_pointer.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_pointer.h b/mesalib/src/gallium/auxiliary/util/u_pointer.h new file mode 100644 index 000000000..f75ce012b --- /dev/null +++ b/mesalib/src/gallium/auxiliary/util/u_pointer.h @@ -0,0 +1,130 @@ +/**************************************************************************
+ *
+ * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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, 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 TUNGSTEN GRAPHICS 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.
+ *
+ **************************************************************************/
+
+#ifndef U_POINTER_H
+#define U_POINTER_H
+
+#include "pipe/p_compiler.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static INLINE intptr_t
+pointer_to_intptr( const void *p )
+{
+ union {
+ const void *p;
+ intptr_t i;
+ } pi;
+ pi.p = p;
+ return pi.i;
+}
+
+static INLINE void *
+intptr_to_pointer( intptr_t i )
+{
+ union {
+ void *p;
+ intptr_t i;
+ } pi;
+ pi.i = i;
+ return pi.p;
+}
+
+static INLINE uintptr_t
+pointer_to_uintptr( const void *ptr )
+{
+ union {
+ const void *p;
+ uintptr_t u;
+ } pu;
+ pu.p = ptr;
+ return pu.u;
+}
+
+static INLINE void *
+uintptr_to_pointer( uintptr_t u )
+{
+ union {
+ void *p;
+ uintptr_t u;
+ } pu;
+ pu.u = u;
+ return pu.p;
+}
+
+/**
+ * Return a pointer aligned to next multiple of N bytes.
+ */
+static INLINE void *
+align_pointer( const void *unaligned, uintptr_t alignment )
+{
+ uintptr_t aligned = (pointer_to_uintptr( unaligned ) + alignment - 1) & ~(alignment - 1);
+ return uintptr_to_pointer( aligned );
+}
+
+
+/**
+ * Return a pointer aligned to next multiple of 16 bytes.
+ */
+static INLINE void *
+align16( void *unaligned )
+{
+ return align_pointer( unaligned, 16 );
+}
+
+typedef void (*func_pointer)(void);
+
+static INLINE func_pointer
+pointer_to_func( void *p )
+{
+ union {
+ void *p;
+ func_pointer f;
+ } pf;
+ pf.p = p;
+ return pf.f;
+}
+
+static INLINE void *
+func_to_pointer( func_pointer f )
+{
+ union {
+ void *p;
+ func_pointer f;
+ } pf;
+ pf.f = f;
+ return pf.p;
+}
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* U_POINTER_H */
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