98 lines
3.4 KiB
C
98 lines
3.4 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2020 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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//==============================================================================
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/**
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This class represents a single value for any of the MPE
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dimensions of control. It supports values with 7-bit or 14-bit resolutions
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(corresponding to 1 or 2 MIDI bytes, respectively). It also offers helper
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functions to query the value in a variety of representations that can be
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useful in an audio or MIDI context.
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@tags{Audio}
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*/
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class JUCE_API MPEValue
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{
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public:
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//==============================================================================
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/** Default constructor.
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Constructs an MPEValue corresponding to the centre value.
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*/
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MPEValue() noexcept;
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/** Constructs an MPEValue from an integer between 0 and 127
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(using 7-bit precision).
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*/
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static MPEValue from7BitInt (int value) noexcept;
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/** Constructs an MPEValue from an integer between 0 and 16383
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(using 14-bit precision).
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*/
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static MPEValue from14BitInt (int value) noexcept;
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/** Constructs an MPEValue corresponding to the centre value. */
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static MPEValue centreValue() noexcept;
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/** Constructs an MPEValue corresponding to the minimum value. */
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static MPEValue minValue() noexcept;
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/** Constructs an MPEValue corresponding to the maximum value. */
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static MPEValue maxValue() noexcept;
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/** Retrieves the current value as an integer between 0 and 127.
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Information will be lost if the value was initialised with a precision
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higher than 7-bit.
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*/
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int as7BitInt() const noexcept;
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/** Retrieves the current value as an integer between 0 and 16383.
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Resolution will be lost if the value was initialised with a precision
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higher than 14-bit.
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*/
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int as14BitInt() const noexcept;
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/** Retrieves the current value mapped to a float between -1.0f and 1.0f. */
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float asSignedFloat() const noexcept;
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/** Retrieves the current value mapped to a float between 0.0f and 1.0f. */
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float asUnsignedFloat() const noexcept;
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/** Returns true if two values are equal. */
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bool operator== (const MPEValue& other) const noexcept;
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/** Returns true if two values are not equal. */
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bool operator!= (const MPEValue& other) const noexcept;
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private:
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//==============================================================================
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MPEValue (int normalisedValue);
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int normalisedValue = 8192;
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};
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} // namespace juce
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