32 jassert (value >= 0 && value <= 127);
34 auto valueAs14Bit = value <= 64 ? value << 7
35 : int (jmap<float> (
float (value - 64), 0.0f, 63.0f, 0.0f, 8191.0f)) + 8192;
37 return { valueAs14Bit };
42 jassert (value >= 0 && value <= 16383);
53 return normalisedValue >> 7;
58 return normalisedValue;
64 return (normalisedValue < 8192)
65 ? jmap<float> (
float (normalisedValue), 0.0f, 8192.0f, -1.0f, 0.0f)
66 : jmap<float> (
float (normalisedValue), 8192.0f, 16383.0f, 0.0f, 1.0f);
71 return jmap<float> (
float (normalisedValue), 0.0f, 16383.0f, 0.0f, 1.0f);
77 return normalisedValue == other.normalisedValue;
82 return ! operator== (other);
94 :
UnitTest (
"MPEValue class", UnitTestCategories::midi)
97 void runTest()
override
99 beginTest (
"comparison operator");
105 expect (value1 == value1);
106 expect (value1 == value2);
107 expect (value1 != value3);
110 beginTest (
"special values");
122 beginTest (
"zero/minimum value");
128 beginTest (
"maximum value");
134 beginTest (
"centre value");
140 beginTest (
"value halfway between min and centre");
149 void expectValuesConsistent (MPEValue value,
150 int expectedValueAs7BitInt,
151 int expectedValueAs14BitInt,
152 float expectedValueAsSignedFloat,
153 float expectedValueAsUnsignedFloat)
155 expectEquals (value.as7BitInt(), expectedValueAs7BitInt);
156 expectEquals (value.as14BitInt(), expectedValueAs14BitInt);
157 expectFloatWithinRelativeError (value.asSignedFloat(), expectedValueAsSignedFloat, 0.0001f);
158 expectFloatWithinRelativeError (value.asUnsignedFloat(), expectedValueAsUnsignedFloat, 0.0001f);
162 void expectFloatWithinRelativeError (
float actualValue,
float expectedValue,
float maxRelativeError)
164 const float maxAbsoluteError = jmax (1.0f, std::abs (expectedValue)) * maxRelativeError;
165 expect (std::abs (expectedValue - actualValue) < maxAbsoluteError);
169static MPEValueTests MPEValueUnitTests;
This class represents a single value for any of the MPE dimensions of control.
float asSignedFloat() const noexcept
Retrieves the current value mapped to a float between -1.0f and 1.0f.
static MPEValue maxValue() noexcept
Constructs an MPEValue corresponding to the maximum value.
static MPEValue centreValue() noexcept
Constructs an MPEValue corresponding to the centre value.
static MPEValue from14BitInt(int value) noexcept
Constructs an MPEValue from an integer between 0 and 16383 (using 14-bit precision).
bool operator==(const MPEValue &other) const noexcept
Returns true if two values are equal.
static MPEValue minValue() noexcept
Constructs an MPEValue corresponding to the minimum value.
float asUnsignedFloat() const noexcept
Retrieves the current value mapped to a float between 0.0f and 1.0f.
MPEValue() noexcept
Default constructor.
int as7BitInt() const noexcept
Retrieves the current value as an integer between 0 and 127.
int as14BitInt() const noexcept
Retrieves the current value as an integer between 0 and 16383.
static MPEValue from7BitInt(int value) noexcept
Constructs an MPEValue from an integer between 0 and 127 (using 7-bit precision).
bool operator!=(const MPEValue &other) const noexcept
Returns true if two values are not equal.
This is a base class for classes that perform a unit test.