Added MD5 (md5mesh works, md5anim has not yet been tested) and STL. new unittests, although not yet complete (material system, normals). Bugfixes (GFn and MDL7). Added HMP5 support. Rewrote MD2 and MD3 to be more stable.

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@77 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
2008-08-06 23:01:38 +00:00
parent b17a5e3b69
commit 2f36cc5f5f
45 changed files with 3625 additions and 932 deletions
--- a/code/Hash.h
+++ b/code/Hash.h
@@ -0,0 +1,67 @@
+
+#ifndef AI_HASH_H_INCLUDED
+#define AI_HASH_H_INCLUDED
+
+// ------------------------------------------------------------------------------------------------
+// hashing function taken from 
+// http://www.azillionmonkeys.com/qed/hash.html
+// (incremental version of the hashing function)
+// (stdint.h should have been been included here)
+#undef get16bits
+#if (defined(__GNUC__) && defined(__i386__)) || defined(__WATCOMC__) \
+  || defined(_MSC_VER) || defined (__BORLANDC__) || defined (__TURBOC__)
+#define get16bits(d) (*((const uint16_t *) (d)))
+#endif
+
+#if !defined (get16bits)
+#define get16bits(d) ((((uint32_t)(((const uint8_t *)(d))[1])) << 8)\
+                       +(uint32_t)(((const uint8_t *)(d))[0]) )
+#endif
+
+// ------------------------------------------------------------------------------------------------
+inline uint32_t SuperFastHash (const char * data, int len, uint32_t hash = 0) {
+uint32_t tmp;
+int rem;
+
+    if (len <= 0 || data == NULL) return 0;
+
+    rem = len & 3;
+    len >>= 2;
+
+    /* Main loop */
+    for (;len > 0; len--) {
+        hash  += get16bits (data);
+        tmp    = (get16bits (data+2) << 11) ^ hash;
+        hash   = (hash << 16) ^ tmp;
+        data  += 2*sizeof (uint16_t);
+        hash  += hash >> 11;
+    }
+
+    /* Handle end cases */
+    switch (rem) {
+        case 3: hash += get16bits (data);
+                hash ^= hash << 16;
+                hash ^= data[sizeof (uint16_t)] << 18;
+                hash += hash >> 11;
+                break;
+        case 2: hash += get16bits (data);
+                hash ^= hash << 11;
+                hash += hash >> 17;
+                break;
+        case 1: hash += *data;
+                hash ^= hash << 10;
+                hash += hash >> 1;
+    }
+
+    /* Force "avalanching" of final 127 bits */
+    hash ^= hash << 3;
+    hash += hash >> 5;
+    hash ^= hash << 4;
+    hash += hash >> 17;
+    hash ^= hash << 25;
+    hash += hash >> 6;
+
+    return hash;
+}
+
+#endif // !! AI_HASH_H_INCLUDED