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authormarha <marha@users.sourceforge.net>2015-04-30 23:24:30 +0200
committermarha <marha@users.sourceforge.net>2015-04-30 23:24:30 +0200
commita71d524ecad48837e0124a03124bc05f59a48be7 (patch)
tree87c5ba1711e03cb9692e23cc685b938571b52d76 /mesalib/src/glsl/glsl_types.cpp
parent2a00e489122f6c4b525090dbdba2855a2ea2d519 (diff)
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fontconfig pixman libX11 mesa git update 30 Apr 2015
libX11 commit d3415d1f052530760b4617db45affcb984cfe35c pixman commit e0c0153d8e5d42c08c2b9bd2cf2123bff2c48d75 fontconfig commit 4a6f5efd5f6a468e1872d58e589bcf30ba88e2fd mesa commit 1ac7db07b363207e8ded9259f84bbcaa084b8667
Diffstat (limited to 'mesalib/src/glsl/glsl_types.cpp')
-rw-r--r--mesalib/src/glsl/glsl_types.cpp23
1 files changed, 13 insertions, 10 deletions
diff --git a/mesalib/src/glsl/glsl_types.cpp b/mesalib/src/glsl/glsl_types.cpp
index 4aa36a794..9c9b7efcb 100644
--- a/mesalib/src/glsl/glsl_types.cpp
+++ b/mesalib/src/glsl/glsl_types.cpp
@@ -738,24 +738,27 @@ glsl_type::record_key_compare(const void *a, const void *b)
}
+/**
+ * Generate an integer hash value for a glsl_type structure type.
+ */
unsigned
glsl_type::record_key_hash(const void *a)
{
const glsl_type *const key = (glsl_type *) a;
- char hash_key[128];
- unsigned size = 0;
-
- size = snprintf(hash_key, sizeof(hash_key), "%08x", key->length);
+ uintptr_t hash = key->length;
+ unsigned retval;
for (unsigned i = 0; i < key->length; i++) {
- if (size >= sizeof(hash_key))
- break;
-
- size += snprintf(& hash_key[size], sizeof(hash_key) - size,
- "%p", (void *) key->fields.structure[i].type);
+ /* casting pointer to uintptr_t */
+ hash = (hash * 13 ) + (uintptr_t) key->fields.structure[i].type;
}
- return hash_table_string_hash(& hash_key);
+ if (sizeof(hash) == 8)
+ retval = (hash & 0xffffffff) ^ ((uint64_t) hash >> 32);
+ else
+ retval = hash;
+
+ return retval;
}