82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
//-----------------------------------------------------------------------------
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// Flags : clang-format SMTGSequencer
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// Project : VST SDK
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//
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// Category : Helpers
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// Filename : public.sdk/source/vst/utility/alignedalloc.h
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// Created by : Steinberg, 05/2023
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// Description : aligned memory allocations
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//
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//-----------------------------------------------------------------------------
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// This file is part of a Steinberg SDK. It is subject to the license terms
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// in the LICENSE file found in the top-level directory of this distribution
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// and at www.steinberg.net/sdklicenses.
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// No part of the SDK, including this file, may be copied, modified, propagated,
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// or distributed except according to the terms contained in the LICENSE file.
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//-----------------------------------------------------------------------------
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#pragma once
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#include "pluginterfaces/base/ftypes.h"
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#include <cstdlib>
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#if __APPLE__
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#include <AvailabilityMacros.h>
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#endif
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#ifdef _MSC_VER
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#include <malloc.h>
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#endif
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//------------------------------------------------------------------------
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namespace Steinberg {
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namespace Vst {
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//------------------------------------------------------------------------
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/** aligned allocation
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*
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* note that you need to use aligned_free to free the block of memory
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*
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* @param numBytes number of bytes to allocate
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* @param alignment alignment of memory base address.
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* must be a power of 2 and at least as large as sizeof (void*) or zero in which it uses malloc
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* for allocation
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*
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* @return allocated memory
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*/
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inline void* aligned_alloc (size_t numBytes, uint32_t alignment)
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{
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if (alignment == 0)
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return malloc (numBytes);
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void* data {nullptr};
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#if SMTG_OS_MACOS && defined(MAC_OS_X_VERSION_MIN_REQUIRED) && \
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MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_15
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posix_memalign (&data, alignment, numBytes);
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#elif defined(_MSC_VER)
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data = _aligned_malloc (numBytes, alignment);
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#else
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data = std::aligned_alloc (alignment, numBytes);
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#endif
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return data;
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}
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//------------------------------------------------------------------------
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inline void aligned_free (void* addr, uint32_t alignment)
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{
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if (alignment == 0)
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std::free (addr);
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else
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{
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#if defined(_MSC_VER)
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_aligned_free (addr);
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#else
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std::free (addr);
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#endif
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}
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}
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//------------------------------------------------------------------------
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} // Vst
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} // Steinberg
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