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authorBrian Paul <brian.paul@tungstengraphics.com>2008-04-23 10:29:52 -0600
committerBrian Paul <brian.paul@tungstengraphics.com>2008-04-23 10:29:52 -0600
commit333976c90aafa602816defef3e4cc4a418601a51 (patch)
tree8c425dee7241cfa6d87fb3cb4e6a2a12de9c2652 /src/gallium
parent43be7a4819ad342e1cb3f8e3fb966a8a78dc2c1b (diff)
gallium: fix broken hashing for vertex translation
It seems we get hash collisions fairly easily and the code as it was didn't deal with that properly. I think we need a simpler hashing interface...
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/auxiliary/draw/draw_pt_fetch.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch.c b/src/gallium/auxiliary/draw/draw_pt_fetch.c
index 93da811ed8..a8d4be5b64 100644
--- a/src/gallium/auxiliary/draw/draw_pt_fetch.c
+++ b/src/gallium/auxiliary/draw/draw_pt_fetch.c
@@ -70,13 +70,21 @@ static struct translate *cached_translate(struct pt_fetch *fetch,
struct cso_hash_iter iter = cso_hash_find(fetch->hash, hash_key);
struct translate *translate = 0;
- if (cso_hash_iter_is_null(iter)) {
+ while (!cso_hash_iter_is_null(iter)) {
+ void *iter_data = cso_hash_iter_data(iter);
+ if (memcmp(iter_data, key, sizeof(*key)) == 0) {
+ /* found */
+ translate = cso_hash_iter_data(iter);
+ break;
+ }
+ iter = cso_hash_iter_next(iter);
+ /*debug_printf("\tOK with %d\n", hash_key);*/
+ }
+
+ if (!translate) {
+ /* create/insert */
translate = translate_create(key);
cso_hash_insert(fetch->hash, hash_key, translate);
- /*debug_printf("\tCREATED with %d\n", hash_key);*/
- } else {
- translate = cso_hash_iter_data(iter);
- /*debug_printf("\tOK with %d\n", hash_key);*/
}
return translate;