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