clear out/zero out the given number of leds.

-- Convert all pixels to RMT pulses This function is only used when the user chooses to use the built-in RMT driver, which needs all of the RMT pulses

Fast 16-bit approximation of cos(x). This approximation never varies more than 0.69% from the floating point value you'd get by doing float s = cos(x

Fast 8-bit approximation of cos(x). This approximation never varies more than 2% from the floating point value you'd get by doing float s = (cos(x) *

there is no GP160 support for this

gets raw pointer to OUTPUT GPIO port

cubicwave8: cubic waveform generator. Spends visibly more time at the limits than 'sine' does.

Linear version of the dimming function that halves for values < 128

Adjust a scaling value for dimming

Adjust a scaling value for dimming for video (value will never go below 1)

Borrowed from the teensy3 SPSR emulation code. We disable the pins that we're using, and restore the state on the pins that we aren't using

Borrowed from the teensy3 SPSR emulation code. We disable the pins that we're using, and restore the state on the pins that we aren't using

-- A controller is done This function is called when a controller finishes writing its data. It is called either by the custom interrupt handler (belo

ease16InOutQuad: 16-bit quadratic ease-in / ease-out function C implementation at this point

Clear DMA buffer * * Yves' clever trick: initialize the bits that we know must be 0 * or 1 regardless of what bit they encode. *

toggle dithering enable

Borrowed from the teensy3 SPSR emulation code -- note, enabling pin 7 disables pin 11 (and vice versa), and likewise enabling pin 14 disables pin 13 (

Borrowed from the teensy3 SPSR emulation code -- note, enabling pin 7 disables pin 11 (and vice versa), and likewise enabling pin 14 disables pin 13 (

sets entire port's value (optimization used by FastLED)

Fill DMA buffer * * This is where the real work happens: take a row of pixels (one * from each strip), transpose and encode the bits,

conversion from IEEE754 float in the range (-1,1) to 16-bit fixed point. Note that the extremes of one and negative one are NOT representable. The r