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translate: helper functions for mimizing cost of key compares

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This commit is contained in:
Keith Whitwell 2008-05-09 13:09:58 +01:00
parent b514f5f3ba
commit 80474d576c
1 changed files with 21 additions and 0 deletions
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21
src/gallium/auxiliary/translate/translate.h
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@ -95,6 +95,27 @@ struct translate *translate_lookup_or_create( struct translate_context *tctx,
struct translate *translate_create( const struct translate_key *key );
static INLINE int translate_keysize( const struct translate_key *key )
{
return 2 * sizeof(int) + key->nr_elements * sizeof(struct translate_element);
}
static INLINE int translate_key_compare( const struct translate_key *a,
const struct translate_key *b )
{
int keysize = translate_keysize(a);
return memcmp(a, b, keysize);
}
static INLINE void translate_key_sanitize( struct translate_key *a )
{
int keysize = translate_keysize(a);
char *ptr = (char *)a;
memset(ptr + keysize, 0, sizeof(*a) - keysize);
}
/*******************************************************************************
* Private:
*/