98 lines
3.4 KiB
C++
98 lines
3.4 KiB
C++
/*
|
|
==============================================================================
|
|
|
|
This file is part of the JUCE library.
|
|
Copyright (c) 2017 - ROLI Ltd.
|
|
|
|
JUCE is an open source library subject to commercial or open-source
|
|
licensing.
|
|
|
|
The code included in this file is provided under the terms of the ISC license
|
|
http://www.isc.org/downloads/software-support-policy/isc-license. Permission
|
|
To use, copy, modify, and/or distribute this software for any purpose with or
|
|
without fee is hereby granted provided that the above copyright notice and
|
|
this permission notice appear in all copies.
|
|
|
|
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
|
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
|
DISCLAIMED.
|
|
|
|
==============================================================================
|
|
*/
|
|
|
|
namespace juce
|
|
{
|
|
|
|
//==============================================================================
|
|
/**
|
|
This class represents a single value for any of the MPE
|
|
dimensions of control. It supports values with 7-bit or 14-bit resolutions
|
|
(corresponding to 1 or 2 MIDI bytes, respectively). It also offers helper
|
|
functions to query the value in a variety of representations that can be
|
|
useful in an audio or MIDI context.
|
|
|
|
@tags{Audio}
|
|
*/
|
|
class JUCE_API MPEValue
|
|
{
|
|
public:
|
|
//==============================================================================
|
|
/** Default constructor.
|
|
|
|
Constructs an MPEValue corresponding to the centre value.
|
|
*/
|
|
MPEValue() noexcept;
|
|
|
|
/** Constructs an MPEValue from an integer between 0 and 127
|
|
(using 7-bit precision).
|
|
*/
|
|
static MPEValue from7BitInt (int value) noexcept;
|
|
|
|
/** Constructs an MPEValue from an integer between 0 and 16383
|
|
(using 14-bit precision).
|
|
*/
|
|
static MPEValue from14BitInt (int value) noexcept;
|
|
|
|
/** Constructs an MPEValue corresponding to the centre value. */
|
|
static MPEValue centreValue() noexcept;
|
|
|
|
/** Constructs an MPEValue corresponding to the minimum value. */
|
|
static MPEValue minValue() noexcept;
|
|
|
|
/** Constructs an MPEValue corresponding to the maximum value. */
|
|
static MPEValue maxValue() noexcept;
|
|
|
|
/** Retrieves the current value as an integer between 0 and 127.
|
|
|
|
Information will be lost if the value was initialised with a precision
|
|
higher than 7-bit.
|
|
*/
|
|
int as7BitInt() const noexcept;
|
|
|
|
/** Retrieves the current value as an integer between 0 and 16383.
|
|
|
|
Resolution will be lost if the value was initialised with a precision
|
|
higher than 14-bit.
|
|
*/
|
|
int as14BitInt() const noexcept;
|
|
|
|
/** Retrieves the current value mapped to a float between -1.0f and 1.0f. */
|
|
float asSignedFloat() const noexcept;
|
|
|
|
/** Retrieves the current value mapped to a float between 0.0f and 1.0f. */
|
|
float asUnsignedFloat() const noexcept;
|
|
|
|
/** Returns true if two values are equal. */
|
|
bool operator== (const MPEValue& other) const noexcept;
|
|
|
|
/** Returns true if two values are not equal. */
|
|
bool operator!= (const MPEValue& other) const noexcept;
|
|
|
|
private:
|
|
//==============================================================================
|
|
MPEValue (int normalisedValue);
|
|
int normalisedValue = 8192;
|
|
};
|
|
|
|
} // namespace juce
|