Initial release

engine/vendor/vst3sdk/public.sdk/source/vst/vstspeakerarray.h

@@ -0,0 +1,82 @@
+//-----------------------------------------------------------------------------
+// Project     : VST SDK
+//
+// Category    : Helpers
+// Filename    : public.sdk/source/vst/vstspeakerarray,.h
+// Created by  : Steinberg, 04/2015
+// Description : Helper class representing speaker arrangement as array of speaker types.
+//
+//-----------------------------------------------------------------------------
+// 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/vst/vsttypes.h"
+#include <cstdlib>
+
+//------------------------------------------------------------------------
+namespace Steinberg {
+namespace Vst {
+
+//------------------------------------------------------------------------
+// SpeakerArray
+/** Helper class representing speaker arrangement as array of speaker types.
+*/
+class SpeakerArray
+{
+public:
+//------------------------------------------------------------------------
+	SpeakerArray (SpeakerArrangement arr = 0) { setArrangement (arr); }
+
+	enum
+	{
+		kMaxSpeakers = 64
+	};
+
+	typedef uint64 SpeakerType;
+
+	int32 total () const { return count; }
+	SpeakerType at (int32 index) const { return speaker[index]; }
+
+	void setArrangement (SpeakerArrangement arr)
+	{
+		count = 0;
+		memset (speaker, 0, sizeof (speaker));
+
+		for (int32 i = 0; i < kMaxSpeakers; i++)
+		{
+			SpeakerType mask = 1ll << i;
+			if (arr & mask)
+				speaker[count++] = mask;
+		}
+	}
+
+	SpeakerArrangement getArrangement () const
+	{
+		SpeakerArrangement arr = 0;
+		for (int32 i = 0; i < count; i++)
+			arr |= speaker[i];
+		return arr;
+	}
+
+	int32 getSpeakerIndex (SpeakerType which) const
+	{
+		for (int32 i = 0; i < count; i++)
+			if (speaker[i] == which)
+				return i;
+		return -1;
+	}
+//------------------------------------------------------------------------
+protected:
+	int32 count;
+	SpeakerType speaker[kMaxSpeakers];
+};
+
+//------------------------------------------------------------------------
+} // namespace Vst
+} // namespace Steinberg