Initial release

engine/vendor/vst3sdk/public.sdk/source/vst/utility/alignedalloc.h

@@ -0,0 +1,81 @@
+//-----------------------------------------------------------------------------
+// Flags       : clang-format SMTGSequencer
+// Project     : VST SDK
+//
+// Category    : Helpers
+// Filename    : public.sdk/source/vst/utility/alignedalloc.h
+// Created by  : Steinberg, 05/2023
+// Description : aligned memory allocations
+//
+//-----------------------------------------------------------------------------
+// This file is part of a Steinberg SDK. It is subject to the license terms
+// in the LICENSE file found in the top-level directory of this distribution
+// and at www.steinberg.net/sdklicenses.
+// No part of the SDK, including this file, may be copied, modified, propagated,
+// or distributed except according to the terms contained in the LICENSE file.
+//-----------------------------------------------------------------------------
+
+#pragma once
+
+#include "pluginterfaces/base/ftypes.h"
+
+#include <cstdlib>
+
+#if __APPLE__
+#include <AvailabilityMacros.h>
+#endif
+
+#ifdef _MSC_VER
+#include <malloc.h>
+#endif
+
+//------------------------------------------------------------------------
+namespace Steinberg {
+namespace Vst {
+
+//------------------------------------------------------------------------
+/** aligned allocation
+ *
+ *	note that you need to use aligned_free to free the block of memory
+ *
+ *	@param numBytes		number of bytes to allocate
+ *	@param alignment	alignment of memory base address.
+ *		must be a power of 2 and at least as large as sizeof (void*) or zero in which it uses malloc
+ *		for allocation
+ *
+ *	@return 			allocated memory
+ */
+inline void* aligned_alloc (size_t numBytes, uint32_t alignment)
+{
+	if (alignment == 0)
+		return malloc (numBytes);
+	void* data {nullptr};
+#if SMTG_OS_MACOS && defined(MAC_OS_X_VERSION_MIN_REQUIRED) && \
+    MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_15
+	posix_memalign (&data, alignment, numBytes);
+#elif defined(_MSC_VER)
+	data = _aligned_malloc (numBytes, alignment);
+#else
+	data = std::aligned_alloc (alignment, numBytes);
+#endif
+	return data;
+}
+
+//------------------------------------------------------------------------
+inline void aligned_free (void* addr, uint32_t alignment)
+{
+	if (alignment == 0)
+		std::free (addr);
+	else
+	{
+#if defined(_MSC_VER)
+		_aligned_free (addr);
+#else
+		std::free (addr);
+#endif
+	}
+}
+
+//------------------------------------------------------------------------
+} // Vst
+} // Steinberg