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/****************************************************************************
* Copyright (C) 2009 by Claas Anders "CaScAdE" Rathje *
* admiralcascade@gmail.com *
* Project-URL: http://www.mylifesucks.de/oss/c-osd/ *
* *
* This program 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 2 of the License. *
* *
* This program 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 this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
****************************************************************************/
#include <avr/pgmspace.h>
#include "osd_helpers.h"
#include "max7456_software_spi.h"
#if !(ALLCHARSDEBUG|(WRITECHARS != -1))
/* ##########################################################################
* compass stuff
* ##########################################################################*/
/**
* convert the <heading> gotton from NC into an index
*/
uint8_t heading_conv(uint16_t heading) {
if (heading > 23 && heading < 68) {
//direction = "NE";
return 0;
} else if (heading > 67 && heading < 113) {
//direction = "E ";
return 1;
} else if (heading > 112 && heading < 158) {
//direction = "SE";
return 2;
} else if (heading > 157 && heading < 203) {
//direction = "S ";
return 3;
} else if (heading > 202 && heading < 248) {
//direction = "SW";
return 4;
} else if (heading > 247 && heading < 293) {
//direction = "W ";
return 5;
} else if (heading > 292 && heading < 338) {
//direction = "NW";
return 6;
}
//direction = "N ";
return 7;
}
/**
* convert the <heading> gotton from NC into a more
* precise index
*/
uint8_t heading_fine_conv(uint16_t heading) {
heading = ((heading * 10) + 113) % 3600;
return (heading / 225);
}
/**
* draw a compass rose at <x>/<y> for <heading>
*/
void draw_compass(uint8_t x, uint8_t y, uint16_t heading) {
//char* rose = "---N---O---S---W---N---O---S---W---N---O---S---W";
static char rose[48] PROGMEM = {216, 215, 216, 211, 216, 215, 216, 213, 216, 215, 216, 212,
216, 215, 216, 214, 216, 215, 216, 211, 216, 215, 216, 213,
216, 215, 216, 212, 216, 215, 216, 214, 216, 215, 216, 211,
216, 215, 216, 213, 216, 215, 216, 212, 216, 215, 216, 214};
// the center is char 19 (north), we add the current heading in 8th
// which would be 22.5 degrees, but float would bloat up the code
// and *10 / 225 would take ages... so we take the uncorrect way
uint8_t front = 19 + (heading / 22);
for (uint8_t i = 0; i < 9; i++) {
write_char_xy(x++, y, pgm_read_byte(&rose[front - 4 + i]));
}
}
/* ##########################################################################
* battery index
* ##########################################################################*/
/**
* draw a battery symbol at <x>/<y> according to <voltage>
*/
void draw_battery(uint8_t x, uint8_t y, uint8_t min_voltage, uint8_t voltage, uint8_t max_voltage) {
uint8_t percent = (100* (voltage - min_voltage) / (max_voltage - min_voltage));
if (percent > 100) percent = 100;
if (voltage < min_voltage) percent = 0;
write_char_xy(x, y, 0x9d - (percent * 13 / 100));
//write_ndigit_number_u(x, y-1, percent * 13 / 100, 100, 0);
}
/* ##########################################################################
* variometer
* ##########################################################################*/
/**
* draw variometer arrows at <x>/<y> according to <variometer>
*/
void draw_variometer(uint8_t x, uint8_t y, int16_t variometer) {
if (variometer == 0) {
write_char_xy(x, y, 0xbb); // plain line
} else if (variometer > 0) { // gain height
switch (variometer / 5){
case 0:
//write_char_xy(x, y, 0xba); // smallest arrow up
write_char_xy(x, y, 0x70); // one arrow up
break;
case 1:
//write_char_xy(x, y, 0xb9); // small arrow up
write_char_xy(x, y, 0x71); // two arrows up
break;
case 2:
//write_char_xy(x, y, 0xb8); // large arrow up
write_char_xy(x, y, 0x72); // three arrows up
break;
default:
//write_char_xy(x, y, 0xb7); // largest arrow up
write_char_xy(x, y, 0x73); // three black arrows up
}
} else { // sink
switch (variometer / -5){
case 0:
//write_char_xy(x, y, 0xbc); // smallest arrow down
write_char_xy(x, y, 0x77); // one arrow down
break;
case 1:
//write_char_xy(x, y, 0xbd); // small arrow down
write_char_xy(x, y, 0x76); // two arrows down
break;
case 2:
//write_char_xy(x, y, 0xbe); // large arrow down
write_char_xy(x, y, 0x75); // three arrows down
break;
default:
//write_char_xy(x, y, 0xbf); // largest arrow down
write_char_xy(x, y, 0x74); // three black arrows down
}
}
}
// big vario arrays
const char vario_00[5] PROGMEM = {0x00, 0x00, 0xc2, 0xff, 0xff};
const char vario_01[5] PROGMEM = {0x00, 0x00, 0xc2, 0xff, 0xc0};
const char vario_02[5] PROGMEM = {0x00, 0x00, 0xc2, 0xff, 0xc1};
const char vario_03[5] PROGMEM = {0x00, 0x00, 0xc2, 0xff, 0x00};
const char vario_04[5] PROGMEM = {0x00, 0x00, 0xc2, 0xc0, 0x00};
const char vario_05[5] PROGMEM = {0x00, 0x00, 0xc2, 0xc1, 0x00};
const char vario_06[5] PROGMEM = {0x00, 0x00, 0xc2, 0x00, 0x00};
const char vario_07[5] PROGMEM = {0x00, 0x00, 0xbb, 0x00, 0x00};
const char vario_08[5] PROGMEM = {0x00, 0x00, 0xc3, 0x00, 0x00};
const char vario_09[5] PROGMEM = {0x00, 0xc4, 0xc3, 0x00, 0x00};
const char vario_10[5] PROGMEM = {0x00, 0xc5, 0xc3, 0x00, 0x00};
const char vario_11[5] PROGMEM = {0x00, 0xff, 0xc3, 0x00, 0x00};
const char vario_12[5] PROGMEM = {0xc4, 0xff, 0xc3, 0x00, 0x00};
const char vario_13[5] PROGMEM = {0xc5, 0xff, 0xc3, 0x00, 0x00};
const char vario_14[5] PROGMEM = {0xff, 0xff, 0xc3, 0x00, 0x00};
const char* vario_pnt[15] PROGMEM = {vario_00, vario_01, vario_02, vario_03, vario_04,
vario_05, vario_06, vario_07, vario_08,
vario_09, vario_10, vario_11, vario_12,
vario_13, vario_14};
/**
* draw a bigger vario with middle at <x>/<y> acording to <variometer>
*/
void draw_big_variometer(uint8_t x, uint8_t y, int16_t variometer) {
int16_t index = 7 + variometer;
if (index > 14) index = 14;
else if (index < 0) index = 0;
write_string_pgm_down(x, y-2, (const char *) (pgm_read_word ( &(vario_pnt[index]))), 5);
}
/* ##########################################################################
* artificial horizon
* ##########################################################################*/
// remember last time displayed values
int8_t old_af_x = -1, old_af_y = -1;
/**
* draw roll und nick indicators (could be enhanced to full artificial horizon)
* from line <firstline> to <listlines> for given <nick> and <roll> values
*/
void draw_artificial_horizon(uint8_t firstline, uint8_t lastline, int16_t nick, int16_t roll) {
char noodle[5] = {225, 225, 226, 227, 227};
uint8_t center_x = 15;
uint8_t center_y = lastline - firstline;
center_y = 7;
write_char_xy(center_x,center_y,228);
uint8_t cpos, nicky, rollx;
// which line
int8_t ypos = nick / 20;
// which character from the array?
if (nick < 0) {
cpos = -1*((nick - (ypos * 20))/4);
ypos--;
} else cpos = 4-((nick - (ypos * 20))/4);
if (cpos > 4) cpos = 4;
nicky = center_y - ypos;
if (nicky > lastline) nicky = lastline;
else if (nicky < firstline) nicky = firstline;
// ensure roll-borders
rollx = (roll / 8)+15;
if (rollx < 2) rollx = 2;
else if (rollx > 28) rollx = 28;
// clear roll
if (old_af_x != rollx && old_af_x >= 0) {
write_char_xy(old_af_x, lastline, 0);
}
// clear nick
if (old_af_y != nicky && old_af_y >= 0) {
write_char_xy(center_x-1, old_af_y, 0);
write_char_xy(center_x+1, old_af_y, 0);
}
// draw nick
write_char_xy(center_x-1, nicky, noodle[cpos]);
write_char_xy(center_x+1, nicky, noodle[cpos]);
// draw roll
write_char_xy(rollx, lastline, 229);
// update old vars
old_af_x = rollx;
old_af_y = nicky;
// debug numbers
//write_3digit_number_u(20,6,cpos);
//write_number_s(20,7,ypos);
//write_number_s(0,7,nick);
//write_number_s(18,11,roll);
}
#endif