FastLED 3.9.15
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Types for storing fractional data.
Example: if a fract8 has the value "64", that should be interpreted as 64/256ths, or one-quarter.
accumXY types should be interpreted as X bits of integer, and Y bits of fraction.
E.g., accum88 has 8 bits of int, 8 bits of fraction
Classes | |
union | IEEE754binary32_t |
typedef for IEEE754 "binary32" float type internals More... | |
struct | IEEE754binary32_t.__unnamed0__ |
struct | IEEE754binary32_t.__unnamed1__ |
struct | IEEE754binary32_t.__unnamed2__ |
class | qfx< T, F, I > |
Template class for representing fractional ints. More... | |
Typedefs | |
typedef uint16_t | accum124 |
no direct ANSI counterpart. 12 bits int, 4 bits fraction | |
typedef uint32_t | accum1616 |
ANSI: signed _Accum. 16 bits int, 16 bits fraction. | |
typedef uint16_t | accum88 |
ANSI: unsigned short _Accum. 8 bits int, 8 bits fraction. | |
typedef uint16_t | fract16 |
ANSI: unsigned _Fract. | |
typedef uint32_t | fract32 |
ANSI: unsigned long _Fract. 32 bits int, 32 bits fraction. | |
typedef uint8_t | fract8 |
ANSI: unsigned short _Fract. | |
typedef qfx< uint16_t, 12, 4 > | q124 |
A 12.4 integer (12 bits integer, 4 bits fraction) | |
typedef qfx< uint8_t, 4, 4 > | q44 |
A 4.4 integer (4 bits integer, 4 bits fraction) | |
typedef qfx< uint8_t, 6, 2 > | q62 |
A 6.2 integer (6 bits integer, 2 bits fraction) | |
typedef qfx< uint16_t, 8, 8 > | q88 |
A 8.8 integer (8 bits integer, 8 bits fraction) | |
typedef int32_t | saccum114 |
no direct ANSI counterpart. 1 bit int, 14 bits fraction | |
typedef int32_t | saccum1516 |
ANSI: signed _Accum. 15 bits int, 16 bits fraction. | |
typedef int16_t | saccum78 |
ANSI: signed short _Accum. 7 bits int, 8 bits fraction. | |
typedef int16_t | sfract15 |
ANSI: signed _Fract. | |
typedef int32_t | sfract31 |
ANSI: signed long _Fract. 31 bits int, 1 bit fraction. | |
typedef int8_t | sfract7 |
ANSI: signed short _Fract. | |
Functions | |
template<class T, int F, int I> | |
static int16_t | operator* (int16_t v, qfx< T, F, I > &q) |
template<class T, int F, int I> | |
static int32_t | operator* (int32_t v, qfx< T, F, I > &q) |
template<class T, int F, int I> | |
static uint16_t | operator* (uint16_t v, qfx< T, F, I > &q) |
template<class T, int F, int I> | |
static uint32_t | operator* (uint32_t v, qfx< T, F, I > &q) |