#include "extra_mappings.h"

// Maps fft columns to leds.
// fft_col_to_array[i] returns an array of leds in the ith bin of the fft.
// Negative indices are "invisible" leds.
// Use them when your keyboard has gaps.
//
// This layout is for the Ergodox EZ.
const int8_t fft_col_to_array[10][5] = {
	{ 47, 43, 38, 33, 28 },
	{ 46, 42, 37, 32, 27 },
	{ 45, 41, 36, 31, 26 },
	{ 44, 40, 35, 30, 25 },
	{ -1, 39, 34, 29, 24 },
	{ -1, 15, 10,  5,  0 },
	{ 20, 16, 11,  6,  1 },
	{ 21, 17, 12,  7,  2 },
	{ 22, 18, 13,  8,  3 },
	{ 23, 19, 14,  9,  4 }
};

// This is the inverse of fft_col_to_array.
//
// Each number represets a bin and a height:
// x % bin_height = height,
// x / bin_height = bin
//
// Indices are [col][row].
const int8_t fft_array_to_col[4][14] = {
	// Right side
	{ 29,  34,  39,  44,  49,
	  28,  33,  38,  43,  48,
	  27,  32,  37,  42},{47,
	  26,  31,  36,  41,  46,
	       30,  35,  40,  45,

	// Left side, mirrored
	   24,  19,  14,   9},{ 4,
	   23,  18,  13,   8,   3,
	   22,  17,  12,   7,   2,
	   21,  16,  11},{ 6,   1,
	   20,  15,  10,   5,   0,

	// No keys here, fill array length
	0, 0, 0, 0, 0, 0, 0}
};