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/*
* lookUp.c
*
* Copyright 2012 Thomas Buck <xythobuz@me.com>
*
* This file is part of LED-Cube.
*
* LED-Cube is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* LED-Cube is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LED-Cube. If not, see <http://www.gnu.org/licenses/>.
*/
// Small utility to create a look up table for CubeFirmware.
// This is needed for our second cube, because we mirrored the connection cable.
#include <stdio.h>
int flip(int d) {
int n;
int converted = 0;
for (n = 0; n < 8; n++) {
if (d & (1 << (7 - n))) {
converted |= (1 << n);
}
}
return converted;
}
int flipAdjacent(int d) {
int n;
int converted = 0;
for (n = 0; n < 7; n+= 2) {
if (d & (1 << n)) {
converted |= (1 << (n + 1));
} else {
converted &= ~(1 << (n + 1));
}
if (d & (1 << (n + 1))) {
converted |= (1 << n);
} else {
converted &= ~(1 << n);
}
}
return converted;
}
int main() {
int byte;
printf("uint8_t lookUp[256] = {");
for (byte = 0; byte < 256; byte++) {
printf(" %d", flipAdjacent(flip(byte));
if (((byte % 10) == 0) && (byte > 0)) {
printf(",\n");
} else if (byte < 255) {
printf(", ");
}
}
printf(" }\n");
return 0;
}
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