1 files changed, 0 insertions, 126 deletions
diff --git a/intern/cycles/util/util_murmurhash.cpp b/intern/cycles/util/util_murmurhash.cpp
deleted file mode 100644
index 5d728769fe9..00000000000
--- a/intern/cycles/util/util_murmurhash.cpp
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Copyright 2018 Blender Foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/* This is taken from alShaders/Cryptomatte/MurmurHash3.h:
- *
- * MurmurHash3 was written by Austin Appleby, and is placed in the public
- * domain. The author hereby disclaims copyright to this source code.
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "util/util_algorithm.h"
-#include "util/util_murmurhash.h"
-
-#if defined(_MSC_VER)
-#  define ROTL32(x, y) _rotl(x, y)
-#  define ROTL64(x, y) _rotl64(x, y)
-#  define BIG_CONSTANT(x) (x)
-#else
-ccl_device_inline uint32_t rotl32(uint32_t x, int8_t r)
-{
-  return (x << r) | (x >> (32 - r));
-}
-#  define ROTL32(x, y) rotl32(x, y)
-#  define BIG_CONSTANT(x) (x##LLU)
-#endif
-
-CCL_NAMESPACE_BEGIN
-
-/* Block read - if your platform needs to do endian-swapping or can only
- * handle aligned reads, do the conversion here. */
-ccl_device_inline uint32_t mm_hash_getblock32(const uint32_t *p, int i)
-{
-  return p[i];
-}
-
-/* Finalization mix - force all bits of a hash block to avalanche */
-ccl_device_inline uint32_t mm_hash_fmix32(uint32_t h)
-{
-  h ^= h >> 16;
-  h *= 0x85ebca6b;
-  h ^= h >> 13;
-  h *= 0xc2b2ae35;
-  h ^= h >> 16;
-  return h;
-}
-
-uint32_t util_murmur_hash3(const void *key, int len, uint32_t seed)
-{
-  const uint8_t *data = (const uint8_t *)key;
-  const int nblocks = len / 4;
-
-  uint32_t h1 = seed;
-
-  const uint32_t c1 = 0xcc9e2d51;
-  const uint32_t c2 = 0x1b873593;
-
-  const uint32_t *blocks = (const uint32_t *)(data + nblocks * 4);
-
-  for (int i = -nblocks; i; i++) {
-    uint32_t k1 = mm_hash_getblock32(blocks, i);
-
-    k1 *= c1;
-    k1 = ROTL32(k1, 15);
-    k1 *= c2;
-
-    h1 ^= k1;
-    h1 = ROTL32(h1, 13);
-    h1 = h1 * 5 + 0xe6546b64;
-  }
-
-  const uint8_t *tail = (const uint8_t *)(data + nblocks * 4);
-
-  uint32_t k1 = 0;
-
-  switch (len & 3) {
-    case 3:
-      k1 ^= tail[2] << 16;
-      ATTR_FALLTHROUGH;
-    case 2:
-      k1 ^= tail[1] << 8;
-      ATTR_FALLTHROUGH;
-    case 1:
-      k1 ^= tail[0];
-      k1 *= c1;
-      k1 = ROTL32(k1, 15);
-      k1 *= c2;
-      h1 ^= k1;
-  }
-
-  h1 ^= len;
-  h1 = mm_hash_fmix32(h1);
-  return h1;
-}
-
-/* This is taken from the cryptomatte specification 1.0 */
-float util_hash_to_float(uint32_t hash)
-{
-  uint32_t mantissa = hash & ((1 << 23) - 1);
-  uint32_t exponent = (hash >> 23) & ((1 << 8) - 1);
-  exponent = max(exponent, (uint32_t)1);
-  exponent = min(exponent, (uint32_t)254);
-  exponent = exponent << 23;
-  uint32_t sign = (hash >> 31);
-  sign = sign << 31;
-  uint32_t float_bits = sign | exponent | mantissa;
-  float f;
-  memcpy(&f, &float_bits, sizeof(uint32_t));
-  return f;
-}
-
-CCL_NAMESPACE_END