ease8InOutQuad()

LIB8STATIC uint8_t ease8InOutQuad

(

uint8_t

i

)

8-bit quadratic ease-in / ease-out function.

Takes around 13 cycles on AVR.

Definition at line 580 of file lib8tion.h.

{
    uint8_t j = i;
    if( j & 0x80 ) {
        j = 255 - j;
    }
    uint8_t jj  = scale8(  j, j);
    uint8_t jj2 = jj << 1;
    if( i & 0x80 ) {
        jj2 = 255 - jj2;
    }
    return jj2;
}

References LIB8STATIC, and scale8().

Referenced by quadwave8().

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