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authorKeith Whitwell <keith@tungstengraphics.com>2008-05-09 13:09:58 +0100
committerKeith Whitwell <keith@tungstengraphics.com>2008-05-09 13:09:58 +0100
commit80474d576c2e92441f6bcc18faae71a38b91bd70 (patch)
treecfd0bb940a16bd8c395982bc2d2f49d9816edaf4 /src/gallium/auxiliary
parentb514f5f3ba4c9cf6c39cbcdf5bf0d2d8efb8d19b (diff)
translate: helper functions for mimizing cost of key compares
Diffstat (limited to 'src/gallium/auxiliary')
-rw-r--r--src/gallium/auxiliary/translate/translate.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/translate/translate.h b/src/gallium/auxiliary/translate/translate.h
index de6f09d18a..b8210af50c 100644
--- a/src/gallium/auxiliary/translate/translate.h
+++ b/src/gallium/auxiliary/translate/translate.h
@@ -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:
*/