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Diffstat (limited to 'bltsville/bltsville/include/bvinternal.h')
-rw-r--r-- | bltsville/bltsville/include/bvinternal.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/bltsville/bltsville/include/bvinternal.h b/bltsville/bltsville/include/bvinternal.h new file mode 100644 index 0000000..06e1bed --- /dev/null +++ b/bltsville/bltsville/include/bvinternal.h @@ -0,0 +1,47 @@ +/* + * 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 */ |