cycles/util/aligned_malloc.h

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/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
 *
 * SPDX-License-Identifier: Apache-2.0 */
 
#pragma once
 
#include <cstddef>
 
CCL_NAMESPACE_BEGIN
 
/* Minimum alignment needed by all CPU native data types (SSE, AVX). */
#define MIN_ALIGNMENT_CPU_DATA_TYPES 16  // NOLINT
/* NanoVDB needs at least 32 byte alignment. */
#define MIN_ALIGNMENT_DEVICE_MEMORY 32  // NOLINT
 
/* Allocate block of size bytes at least aligned to a given value. */
void *util_aligned_malloc(const size_t size, const int alignment);
 
/* Free memory allocated by util_aligned_malloc. */
void util_aligned_free(void *ptr, const size_t size);
 
/* Aligned new operator. */
template<typename T, typename... Args> T *util_aligned_new(Args... args)
{
  void *mem = util_aligned_malloc(sizeof(T), alignof(T));
  return new (mem) T(args...);
}
 
template<typename T> void util_aligned_delete(T *t)
{
  if (t) {
    t->~T();
    util_aligned_free(t, sizeof(T));
  }
}
 
CCL_NAMESPACE_END