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115 lines
4.2 KiB
C++
115 lines
4.2 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE framework.
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Copyright (c) Raw Material Software Limited
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JUCE is an open source framework subject to commercial or open source
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licensing.
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By downloading, installing, or using the JUCE framework, or combining the
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JUCE framework with any other source code, object code, content or any other
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copyrightable work, you agree to the terms of the JUCE End User Licence
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Agreement, and all incorporated terms including the JUCE Privacy Policy and
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the JUCE Website Terms of Service, as applicable, which will bind you. If you
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do not agree to the terms of these agreements, we will not license the JUCE
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framework to you, and you must discontinue the installation or download
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process and cease use of the JUCE framework.
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JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
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JUCE Privacy Policy: https://juce.com/juce-privacy-policy
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JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
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Or:
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You may also use this code under the terms of the AGPLv3:
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https://www.gnu.org/licenses/agpl-3.0.en.html
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THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
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WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
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MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE 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 from a float between 0.0f and 1.0f. */
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static MPEValue fromUnsignedFloat (float value) noexcept;
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/** Constructs an MPEValue from a float between -1.0f and 1.0f. */
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static MPEValue fromSignedFloat (float 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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