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authorcodeworkx <codeworkx@cyanogenmod.org>2013-02-11 17:29:55 +0000
committercodeworkx <codeworkx@cyanogenmod.org>2013-02-13 18:55:29 +0000
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tree744f1fc5d63e8669de1018dc7c42c4e863ceae85 /bltsville/bltsville/include/bvinternal.h
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+/*
+ * bvinternal.h
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ *
+ * This file is part of BLTsville, an open application programming interface
+ * (API) for accessing 2-D software or hardware implementations.
+ *
+ * This work is licensed under the Creative Commons Attribution-NoDerivs 3.0
+ * Unported License. To view a copy of this license, visit
+ * http://creativecommons.org/licenses/by-nd/3.0/ or send a letter to
+ * Creative Commons, 444 Castro Street, Suite 900, Mountain View, California,
+ * 94041, USA.
+ */
+
+/*
+ * This file contains definitions used by implementations of BLTsville
+ * 2-D libraries. It should not be used by clients.
+ */
+
+#ifndef BVINTERNAL_H
+#define BVINTENRAL_H
+
+/*
+ * bvbuffmap - The bvbuffmap structure is used to track resources
+ * associated with a buffer, such as a h/w MMU entry. The implementations
+ * add bvbuffmap objects when they allocate the resources. Then when a
+ * buffer is accessed, the implementations can regain access to the
+ * associated resources. The implementations allocate and populate this
+ * structure when a bv_map() call is made. It is used in subsequent
+ * bv_blt() and bv_unmap() calls. The latter frees the associated resource
+ * and the structure (if applicable). Note that a given resource might be
+ * used by more than one implementation.
+ */
+struct bvbuffmap {
+ unsigned int structsize; /* used to ID structure ver */
+
+ /* function to unmap this resource */
+ BVFN_UNMAP bv_unmap;
+
+ unsigned long handle; /* resource-specific info */
+
+ /* pointer to next resource mapping structure */
+ struct bvbuffmap *nextmap;
+};
+
+#endif /* BVINTERNAL_H */