Dan Searle / N3310LCD

Library for Nuelectronics Nokia 3310/5110 LCD Display and joystick.

Dependents:   LEDFun NetTester

Fork of N3310LCD by Andrew Lindsay

Library for Nuelectronics Nokia 3310/5110 LCD Display and joystick.

N3310LCD.cpp@8:0380b34047ad, 2013-08-01 (annotated)

Committer:
Searle95
Date:
Thu Aug 01 09:14:23 2013 +0000
Revision:
8:0380b34047ad
Parent:
6:46bcc4e584c4 
Modified for use in NetTester project.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
SomeRandomBloke 0:7efa6655d94b 1 /*
SomeRandomBloke 0:7efa6655d94b 2 * N3310LCD. A program to interface mbed with the nuelectronics
SomeRandomBloke 0:7efa6655d94b 3 * Nokia 3310 LCD shield from www.nuelectronics.com. Ported from
SomeRandomBloke 0:7efa6655d94b 4 * the nuelectronics Arduino code.
SomeRandomBloke 0:7efa6655d94b 5 *
SomeRandomBloke 0:7efa6655d94b 6 * Copyright (C) <2009> Petras Saduikis <petras@petras.co.uk>
SomeRandomBloke 0:7efa6655d94b 7 *
SomeRandomBloke 0:7efa6655d94b 8 * Converted to a mbed library by Andrew D. Lindsay
SomeRandomBloke 0:7efa6655d94b 9 *
SomeRandomBloke 0:7efa6655d94b 10 * This file is part of N3310LCD.
SomeRandomBloke 0:7efa6655d94b 11 *
SomeRandomBloke 0:7efa6655d94b 12 * N3310LCD is free software: you can redistribute it and/or modify
SomeRandomBloke 0:7efa6655d94b 13 * it under the terms of the GNU General Public License as published by
SomeRandomBloke 0:7efa6655d94b 14 * the Free Software Foundation, either version 3 of the License, or
SomeRandomBloke 0:7efa6655d94b 15 * (at your option) any later version.
SomeRandomBloke 1:51961974fe55 16 *
SomeRandomBloke 0:7efa6655d94b 17 * N3310LCD is distributed in the hope that it will be useful,
SomeRandomBloke 0:7efa6655d94b 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
SomeRandomBloke 0:7efa6655d94b 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
SomeRandomBloke 0:7efa6655d94b 20 * GNU General Public License for more details.
SomeRandomBloke 0:7efa6655d94b 21 *
SomeRandomBloke 0:7efa6655d94b 22 * You should have received a copy of the GNU General Public License
SomeRandomBloke 0:7efa6655d94b 23 * along with N3310LCD. If not, see <http://www.gnu.org/licenses/>.
SomeRandomBloke 0:7efa6655d94b 24 */
SomeRandomBloke 0:7efa6655d94b 25
SomeRandomBloke 0:7efa6655d94b 26 #include "N3310LCD.h"
SomeRandomBloke 0:7efa6655d94b 27 #include "N3310Fonts.h"
Searle95 8:0380b34047ad 28 #include "variables.h"
Searle95 8:0380b34047ad 29
Searle95 8:0380b34047ad 30 int contrast = 0xB5;
SomeRandomBloke 0:7efa6655d94b 31
SomeRandomBloke 0:7efa6655d94b 32 static unsigned char lcd_buffer[LCDROWMAX][LCDCOLMAX];
SomeRandomBloke 3:9808f63fd2fe 33 // current cursor postition
SomeRandomBloke 3:9808f63fd2fe 34 static unsigned char cursor_row = 0; /* 0-5 */
SomeRandomBloke 3:9808f63fd2fe 35 static unsigned char cursor_col = 0; /* 0-83 */
SomeRandomBloke 3:9808f63fd2fe 36 unsigned char *fontStart; // Start of font data
SomeRandomBloke 3:9808f63fd2fe 37 int8_t fontWidth; // Font width
SomeRandomBloke 3:9808f63fd2fe 38 int8_t fontHeight; // Font height
SomeRandomBloke 4:90dce6032a37 39 int16_t fontStartChar; // Start, usually 32
SomeRandomBloke 4:90dce6032a37 40 int16_t fontEndChar; // End character, usually 127 or 128
SomeRandomBloke 0:7efa6655d94b 41
SomeRandomBloke 1:51961974fe55 42 N3310LCD::N3310LCD (PinName mosi, PinName miso, PinName sck,
SomeRandomBloke 1:51961974fe55 43 PinName ce, PinName dat_cmd, PinName lcd_rst, PinName bl_on) :
SomeRandomBloke 1:51961974fe55 44 lcdPort(mosi, miso, sck),
SomeRandomBloke 4:90dce6032a37 45 ceWire(ce), dcWire(dat_cmd), rstWire(lcd_rst), blWire(bl_on) {
SomeRandomBloke 0:7efa6655d94b 46 }
SomeRandomBloke 0:7efa6655d94b 47
SomeRandomBloke 0:7efa6655d94b 48 void N3310LCD::init()
SomeRandomBloke 0:7efa6655d94b 49 {
SomeRandomBloke 0:7efa6655d94b 50 // use default SPI format
SomeRandomBloke 0:7efa6655d94b 51 lcdPort.format(8,0);
SomeRandomBloke 4:90dce6032a37 52 lcdPort.frequency(8000000); // Lets try 8MHz
SomeRandomBloke 1:51961974fe55 53
SomeRandomBloke 0:7efa6655d94b 54 // lcd reset
SomeRandomBloke 0:7efa6655d94b 55 wait_ms(1);
SomeRandomBloke 0:7efa6655d94b 56 rstWire = 0;
SomeRandomBloke 0:7efa6655d94b 57 wait_ms(1);
SomeRandomBloke 0:7efa6655d94b 58 rstWire = 1;
SomeRandomBloke 1:51961974fe55 59
SomeRandomBloke 3:9808f63fd2fe 60 writeCommand(0x21); // LCD Extended Commands
Searle95 8:0380b34047ad 61 writeCommand(contrast); // Set LCD Vop (Contrast)
SomeRandomBloke 3:9808f63fd2fe 62 writeCommand(0x06); // Set temp coefficient
SomeRandomBloke 3:9808f63fd2fe 63 writeCommand(0x13); // LCD bias mode1:48
SomeRandomBloke 3:9808f63fd2fe 64 writeCommand(0x20); // LCD Standard Commands, Horizontal addressing mode
SomeRandomBloke 3:9808f63fd2fe 65 writeCommand(0x0c); // LCD in normal mode
SomeRandomBloke 1:51961974fe55 66 cls();
SomeRandomBloke 3:9808f63fd2fe 67 setFont( FONT_5x7 );
SomeRandomBloke 6:46bcc4e584c4 68
SomeRandomBloke 3:9808f63fd2fe 69
SomeRandomBloke 3:9808f63fd2fe 70 }
SomeRandomBloke 3:9808f63fd2fe 71
SomeRandomBloke 3:9808f63fd2fe 72 void N3310LCD::setFont(BYTE font )
SomeRandomBloke 3:9808f63fd2fe 73 {
SomeRandomBloke 3:9808f63fd2fe 74
SomeRandomBloke 3:9808f63fd2fe 75 switch( font ) {
SomeRandomBloke 3:9808f63fd2fe 76 case FONT_6x8:
SomeRandomBloke 3:9808f63fd2fe 77 fontWidth = 6;
SomeRandomBloke 3:9808f63fd2fe 78 fontHeight = 8;
SomeRandomBloke 4:90dce6032a37 79 fontStartChar = 32;
SomeRandomBloke 4:90dce6032a37 80 fontEndChar = 128;
SomeRandomBloke 3:9808f63fd2fe 81 fontStart = font6_8;
SomeRandomBloke 3:9808f63fd2fe 82 break;
SomeRandomBloke 6:46bcc4e584c4 83
SomeRandomBloke 3:9808f63fd2fe 84 default:
SomeRandomBloke 3:9808f63fd2fe 85 fontWidth = 5;
SomeRandomBloke 3:9808f63fd2fe 86 fontHeight = 7;
SomeRandomBloke 4:90dce6032a37 87 fontStartChar = 32;
SomeRandomBloke 4:90dce6032a37 88 fontEndChar = 128;
SomeRandomBloke 3:9808f63fd2fe 89 fontStart = font5_7;
SomeRandomBloke 3:9808f63fd2fe 90 break;
SomeRandomBloke 3:9808f63fd2fe 91 }
SomeRandomBloke 0:7efa6655d94b 92 }
SomeRandomBloke 0:7efa6655d94b 93
SomeRandomBloke 0:7efa6655d94b 94 void N3310LCD::cls()
SomeRandomBloke 0:7efa6655d94b 95 {
SomeRandomBloke 3:9808f63fd2fe 96 writeCommand(0x40); // column
SomeRandomBloke 3:9808f63fd2fe 97 writeCommand(0x80); // row
SomeRandomBloke 3:9808f63fd2fe 98 for(int i=0; i< LCDROWMAX; i++) {
SomeRandomBloke 3:9808f63fd2fe 99 for(int j=0; j< LCDCOLMAX; j++) {
SomeRandomBloke 3:9808f63fd2fe 100 writeData( 0x00 );
SomeRandomBloke 3:9808f63fd2fe 101 lcd_buffer[i][j] = 0x00;
SomeRandomBloke 3:9808f63fd2fe 102 }
SomeRandomBloke 0:7efa6655d94b 103 }
SomeRandomBloke 0:7efa6655d94b 104 }
SomeRandomBloke 0:7efa6655d94b 105
SomeRandomBloke 0:7efa6655d94b 106 void N3310LCD::backlight(eBacklight state)
SomeRandomBloke 0:7efa6655d94b 107 {
SomeRandomBloke 0:7efa6655d94b 108 // switch off/on back light
SomeRandomBloke 0:7efa6655d94b 109 blWire = state;
SomeRandomBloke 0:7efa6655d94b 110 }
SomeRandomBloke 0:7efa6655d94b 111
SomeRandomBloke 3:9808f63fd2fe 112 void N3310LCD::writeCommand(BYTE data)
SomeRandomBloke 0:7efa6655d94b 113 {
SomeRandomBloke 0:7efa6655d94b 114 // bring CS low for write
SomeRandomBloke 0:7efa6655d94b 115 ceWire = 0;
SomeRandomBloke 3:9808f63fd2fe 116 dcWire = 0;
SomeRandomBloke 1:51961974fe55 117
SomeRandomBloke 3:9808f63fd2fe 118 lcdPort.write(data);
SomeRandomBloke 3:9808f63fd2fe 119
SomeRandomBloke 3:9808f63fd2fe 120 // write finished
SomeRandomBloke 3:9808f63fd2fe 121 ceWire = 1;
SomeRandomBloke 3:9808f63fd2fe 122 }
SomeRandomBloke 3:9808f63fd2fe 123
SomeRandomBloke 3:9808f63fd2fe 124 void N3310LCD::writeData(BYTE data)
SomeRandomBloke 3:9808f63fd2fe 125 {
SomeRandomBloke 3:9808f63fd2fe 126 // bring CS low for write
SomeRandomBloke 3:9808f63fd2fe 127 ceWire = 0;
SomeRandomBloke 3:9808f63fd2fe 128 dcWire = 1;
SomeRandomBloke 1:51961974fe55 129
SomeRandomBloke 0:7efa6655d94b 130 lcdPort.write(data);
SomeRandomBloke 1:51961974fe55 131
SomeRandomBloke 0:7efa6655d94b 132 // write finished
SomeRandomBloke 0:7efa6655d94b 133 ceWire = 1;
SomeRandomBloke 0:7efa6655d94b 134 }
SomeRandomBloke 0:7efa6655d94b 135
SomeRandomBloke 0:7efa6655d94b 136 void N3310LCD::locate(BYTE xPos, BYTE yPos)
SomeRandomBloke 0:7efa6655d94b 137 {
SomeRandomBloke 3:9808f63fd2fe 138 writeCommand(0x40 | yPos); // column
SomeRandomBloke 3:9808f63fd2fe 139 writeCommand(0x80 | xPos); // row
SomeRandomBloke 3:9808f63fd2fe 140 cursor_row = yPos;
SomeRandomBloke 3:9808f63fd2fe 141 cursor_col = xPos;
SomeRandomBloke 0:7efa6655d94b 142 }
SomeRandomBloke 0:7efa6655d94b 143
SomeRandomBloke 0:7efa6655d94b 144 void N3310LCD::drawBitmap(BYTE xPos, BYTE yPos, BYTE* bitmap, BYTE bmpXSize, BYTE bmpYSize)
SomeRandomBloke 0:7efa6655d94b 145 {
SomeRandomBloke 0:7efa6655d94b 146 BYTE row;
SomeRandomBloke 1:51961974fe55 147
SomeRandomBloke 0:7efa6655d94b 148 if (0 == bmpYSize % 8)
SomeRandomBloke 1:51961974fe55 149 row = bmpYSize/8;
SomeRandomBloke 0:7efa6655d94b 150 else
SomeRandomBloke 0:7efa6655d94b 151 row = bmpYSize/8 + 1;
SomeRandomBloke 1:51961974fe55 152
SomeRandomBloke 1:51961974fe55 153 for (BYTE n = 0; n < row; n++) {
SomeRandomBloke 0:7efa6655d94b 154 locate(xPos, yPos);
SomeRandomBloke 1:51961974fe55 155 for(BYTE i = 0; i < bmpXSize; i++) {
SomeRandomBloke 3:9808f63fd2fe 156 writeData(bitmap[i + (n * bmpXSize)]);
SomeRandomBloke 0:7efa6655d94b 157 }
SomeRandomBloke 1:51961974fe55 158 yPos++;
SomeRandomBloke 0:7efa6655d94b 159 }
SomeRandomBloke 0:7efa6655d94b 160 }
SomeRandomBloke 0:7efa6655d94b 161
SomeRandomBloke 0:7efa6655d94b 162 /*
SomeRandomBloke 1:51961974fe55 163 * Name : clearBitmap
SomeRandomBloke 0:7efa6655d94b 164 * Description : Clear an area of the screen, usually to blank out a
SomeRandomBloke 0:7efa6655d94b 165 * previously drawn image or part of image.
SomeRandomBloke 0:7efa6655d94b 166 * Argument(s) : x, y - Position on screen, x 0-83, y 1-6
SomeRandomBloke 0:7efa6655d94b 167 * size_x,size_y - Size of the image in pixels,
SomeRandomBloke 0:7efa6655d94b 168 * size_y is multiple of 8
SomeRandomBloke 1:51961974fe55 169 * Return value : none
SomeRandomBloke 0:7efa6655d94b 170 */
SomeRandomBloke 0:7efa6655d94b 171 void N3310LCD::clearBitmap( unsigned char x,unsigned char y,
SomeRandomBloke 1:51961974fe55 172 unsigned char size_x,unsigned char size_y)
SomeRandomBloke 1:51961974fe55 173 {
SomeRandomBloke 0:7efa6655d94b 174 unsigned int i,n;
SomeRandomBloke 0:7efa6655d94b 175 unsigned char row;
SomeRandomBloke 1:51961974fe55 176
SomeRandomBloke 0:7efa6655d94b 177 row = (size_y % 8 == 0 ) ? size_y / 8 : size_y / 8 + 1;
SomeRandomBloke 1:51961974fe55 178
SomeRandomBloke 1:51961974fe55 179 for (n=0; n<row; n++) {
SomeRandomBloke 0:7efa6655d94b 180 locate(x,y);
SomeRandomBloke 0:7efa6655d94b 181 for(i=0; i<size_x; i++) {
SomeRandomBloke 3:9808f63fd2fe 182 writeData( 0x00 );
SomeRandomBloke 0:7efa6655d94b 183 }
SomeRandomBloke 1:51961974fe55 184 y++;
SomeRandomBloke 1:51961974fe55 185 }
SomeRandomBloke 0:7efa6655d94b 186 }
SomeRandomBloke 0:7efa6655d94b 187
SomeRandomBloke 0:7efa6655d94b 188 void N3310LCD::writeString(BYTE xPos, BYTE yPos, char* string, eDisplayMode mode)
SomeRandomBloke 0:7efa6655d94b 189 {
SomeRandomBloke 0:7efa6655d94b 190 locate(xPos, yPos);
SomeRandomBloke 1:51961974fe55 191
SomeRandomBloke 1:51961974fe55 192 while (*string) {
SomeRandomBloke 0:7efa6655d94b 193 writeChar(*string++, mode);
SomeRandomBloke 0:7efa6655d94b 194 }
SomeRandomBloke 0:7efa6655d94b 195 }
SomeRandomBloke 1:51961974fe55 196
SomeRandomBloke 0:7efa6655d94b 197 void N3310LCD::writeStringBig(BYTE xPos, BYTE yPos, char* string, eDisplayMode mode)
SomeRandomBloke 0:7efa6655d94b 198 {
SomeRandomBloke 1:51961974fe55 199 while (*string) {
SomeRandomBloke 0:7efa6655d94b 200 writeCharBig(xPos, yPos, *string , mode);
SomeRandomBloke 1:51961974fe55 201
SomeRandomBloke 0:7efa6655d94b 202 if('.' == *string++)
SomeRandomBloke 0:7efa6655d94b 203 xPos += 5;
SomeRandomBloke 0:7efa6655d94b 204 else
SomeRandomBloke 0:7efa6655d94b 205 xPos += 12;
SomeRandomBloke 0:7efa6655d94b 206 }
SomeRandomBloke 0:7efa6655d94b 207 }
SomeRandomBloke 0:7efa6655d94b 208
SomeRandomBloke 0:7efa6655d94b 209 void N3310LCD::writeChar(BYTE ch, eDisplayMode mode)
SomeRandomBloke 0:7efa6655d94b 210 {
SomeRandomBloke 4:90dce6032a37 211 ch -= fontStartChar;
SomeRandomBloke 0:7efa6655d94b 212
SomeRandomBloke 3:9808f63fd2fe 213 if (cursor_col > LCDCOLMAX - (fontWidth+1)) cursor_col = LCDCOLMAX - (fontWidth+1); // ensure space is available for the character
SomeRandomBloke 3:9808f63fd2fe 214 if (cursor_row > LCDROWMAX - 1) cursor_row = LCDROWMAX - 1; // ensure space is available for the character
SomeRandomBloke 3:9808f63fd2fe 215 lcd_buffer[cursor_row][cursor_col] = 0x00;
SomeRandomBloke 3:9808f63fd2fe 216 for(int8_t j=0; j< fontHeight; j++) {
SomeRandomBloke 4:90dce6032a37 217 lcd_buffer[cursor_row][cursor_col + j] = fontStart[(ch)*fontWidth + j];
SomeRandomBloke 0:7efa6655d94b 218 }
SomeRandomBloke 3:9808f63fd2fe 219
SomeRandomBloke 3:9808f63fd2fe 220 lcd_buffer[cursor_row][cursor_col + fontWidth] = 0x00;
SomeRandomBloke 3:9808f63fd2fe 221
SomeRandomBloke 3:9808f63fd2fe 222 for(int8_t j=0; j< (fontWidth+1); j++) {
SomeRandomBloke 3:9808f63fd2fe 223 if( mode == NORMAL )
SomeRandomBloke 3:9808f63fd2fe 224 writeData(lcd_buffer[cursor_row][cursor_col++]);
SomeRandomBloke 3:9808f63fd2fe 225 else
SomeRandomBloke 3:9808f63fd2fe 226 writeData(lcd_buffer[cursor_row][cursor_col++] ^ 0xff);
SomeRandomBloke 3:9808f63fd2fe 227 if (cursor_col >= LCDCOLMAX) {
SomeRandomBloke 3:9808f63fd2fe 228 cursor_col=0;
SomeRandomBloke 3:9808f63fd2fe 229 cursor_row++;
SomeRandomBloke 3:9808f63fd2fe 230 if (cursor_row >= LCDROWMAX) cursor_row=0;
SomeRandomBloke 3:9808f63fd2fe 231 }
SomeRandomBloke 3:9808f63fd2fe 232 }
SomeRandomBloke 5:1fd7af32e521 233 }
SomeRandomBloke 3:9808f63fd2fe 234
SomeRandomBloke 5:1fd7af32e521 235 int N3310LCD::_putc(int c) {
SomeRandomBloke 5:1fd7af32e521 236 writeChar(c, NORMAL);
SomeRandomBloke 5:1fd7af32e521 237 return c;
SomeRandomBloke 5:1fd7af32e521 238 }
SomeRandomBloke 5:1fd7af32e521 239 int N3310LCD::_getc() {
SomeRandomBloke 5:1fd7af32e521 240 return -1;
SomeRandomBloke 0:7efa6655d94b 241 }
SomeRandomBloke 0:7efa6655d94b 242
SomeRandomBloke 0:7efa6655d94b 243 void N3310LCD::writeCharBig(BYTE xPos, BYTE yPos, BYTE ch, eDisplayMode mode)
SomeRandomBloke 0:7efa6655d94b 244 {
SomeRandomBloke 0:7efa6655d94b 245 BYTE sendByte;
SomeRandomBloke 3:9808f63fd2fe 246 int8_t colsUsed = 12;
SomeRandomBloke 0:7efa6655d94b 247 unsigned char* pFont = (unsigned char *) big_number;
SomeRandomBloke 1:51961974fe55 248
SomeRandomBloke 3:9808f63fd2fe 249
SomeRandomBloke 3:9808f63fd2fe 250 if(ch == '.') {
SomeRandomBloke 0:7efa6655d94b 251 ch = 10;
SomeRandomBloke 3:9808f63fd2fe 252 colsUsed=5;
SomeRandomBloke 3:9808f63fd2fe 253 } else if (ch == '+')
SomeRandomBloke 0:7efa6655d94b 254 ch = 11;
SomeRandomBloke 3:9808f63fd2fe 255 else if (ch == '-')
SomeRandomBloke 0:7efa6655d94b 256 ch = 12;
SomeRandomBloke 3:9808f63fd2fe 257 else if (ch == ':')
SomeRandomBloke 3:9808f63fd2fe 258 ch = 13;
SomeRandomBloke 3:9808f63fd2fe 259 else if (ch == '/')
SomeRandomBloke 3:9808f63fd2fe 260 ch = 14;
SomeRandomBloke 0:7efa6655d94b 261 else
SomeRandomBloke 0:7efa6655d94b 262 ch = ch & 0x0f;
SomeRandomBloke 1:51961974fe55 263
SomeRandomBloke 3:9808f63fd2fe 264 /*
SomeRandomBloke 3:9808f63fd2fe 265 for(BYTE i = 0; i < 3; i++) {
SomeRandomBloke 3:9808f63fd2fe 266 locate(xPos, yPos + i);
SomeRandomBloke 1:51961974fe55 267
SomeRandomBloke 3:9808f63fd2fe 268 for(BYTE j = 0; j < 16; j++) {
SomeRandomBloke 3:9808f63fd2fe 269 sendByte = *(pFont + ch*48 + i*16 + j);
SomeRandomBloke 3:9808f63fd2fe 270 writeData((mode == NORMAL)? sendByte : (sendByte^0xff));
SomeRandomBloke 3:9808f63fd2fe 271 }
SomeRandomBloke 3:9808f63fd2fe 272 }
SomeRandomBloke 3:9808f63fd2fe 273 */
SomeRandomBloke 3:9808f63fd2fe 274 if (xPos > LCDCOLMAX - colsUsed) xPos = LCDCOLMAX - colsUsed ; // ensure space is available for the character
SomeRandomBloke 3:9808f63fd2fe 275 if (yPos > LCDROWMAX - 3) yPos = LCDROWMAX - 3 ; // ensure space is available for the character
SomeRandomBloke 3:9808f63fd2fe 276
SomeRandomBloke 3:9808f63fd2fe 277 for(int8_t i=0; i<3; i++) {
SomeRandomBloke 3:9808f63fd2fe 278 locate( xPos, yPos + i);
SomeRandomBloke 3:9808f63fd2fe 279
SomeRandomBloke 3:9808f63fd2fe 280 for(int8_t j=0; j<colsUsed; j++) {
SomeRandomBloke 0:7efa6655d94b 281 sendByte = *(pFont + ch*48 + i*16 + j);
SomeRandomBloke 3:9808f63fd2fe 282 lcd_buffer[cursor_row][cursor_col + j] = (mode == NORMAL)? sendByte : (sendByte^0xff);
SomeRandomBloke 4:90dce6032a37 283 writeData( lcd_buffer[cursor_row][cursor_col + j] );
SomeRandomBloke 0:7efa6655d94b 284 }
SomeRandomBloke 0:7efa6655d94b 285 }
SomeRandomBloke 0:7efa6655d94b 286 }
SomeRandomBloke 0:7efa6655d94b 287
SomeRandomBloke 0:7efa6655d94b 288 /*
SomeRandomBloke 0:7efa6655d94b 289 * Name : setPixel
SomeRandomBloke 0:7efa6655d94b 290 * Description : Set a single pixel either on or off, update display buffer.
SomeRandomBloke 0:7efa6655d94b 291 * Argument(s) : x,y - position, x = 0-83, y = 0-6
SomeRandomBloke 0:7efa6655d94b 292 * c - colour, either PIXEL_ON, PIXEL_OFF or PIXEL_XOR
SomeRandomBloke 0:7efa6655d94b 293 * Return value : none
SomeRandomBloke 0:7efa6655d94b 294 */
SomeRandomBloke 1:51961974fe55 295 void N3310LCD::setPixel( unsigned char x, unsigned char y, unsigned char c )
SomeRandomBloke 1:51961974fe55 296 {
SomeRandomBloke 1:51961974fe55 297 unsigned char value;
SomeRandomBloke 1:51961974fe55 298 unsigned char row;
SomeRandomBloke 1:51961974fe55 299
SomeRandomBloke 0:7efa6655d94b 300 // if( x < 0 || x >= LCDCOLMAX || y < 0 || y >= LCDPIXELROWMAX ) return;
SomeRandomBloke 0:7efa6655d94b 301 if( x >= LCDCOLMAX || y >= LCDPIXELROWMAX ) return;
SomeRandomBloke 0:7efa6655d94b 302
SomeRandomBloke 0:7efa6655d94b 303 row = y / 8;
SomeRandomBloke 0:7efa6655d94b 304
SomeRandomBloke 0:7efa6655d94b 305 value = lcd_buffer[row][x];
SomeRandomBloke 0:7efa6655d94b 306 if( c == PIXEL_ON ) {
SomeRandomBloke 0:7efa6655d94b 307 value |= (1 << (y % 8));
SomeRandomBloke 0:7efa6655d94b 308 } else if( c == PIXEL_XOR ) {
SomeRandomBloke 0:7efa6655d94b 309 value ^= (1 << (y % 8));
SomeRandomBloke 0:7efa6655d94b 310 } else {
SomeRandomBloke 0:7efa6655d94b 311 value &= ~(1 << (y % 8));
SomeRandomBloke 0:7efa6655d94b 312 }
SomeRandomBloke 0:7efa6655d94b 313
SomeRandomBloke 0:7efa6655d94b 314 lcd_buffer[row][x] = value;
SomeRandomBloke 0:7efa6655d94b 315 locate (x,row);
SomeRandomBloke 3:9808f63fd2fe 316 writeData(value);
SomeRandomBloke 0:7efa6655d94b 317 }
SomeRandomBloke 0:7efa6655d94b 318
SomeRandomBloke 0:7efa6655d94b 319
SomeRandomBloke 0:7efa6655d94b 320 /*
SomeRandomBloke 0:7efa6655d94b 321 * Name : drawLine
SomeRandomBloke 0:7efa6655d94b 322 * Description : Draws a line between two points on the display.
SomeRandomBloke 0:7efa6655d94b 323 * Argument(s) : x1, y1 - Absolute pixel coordinates for line origin.
SomeRandomBloke 0:7efa6655d94b 324 * x2, y2 - Absolute pixel coordinates for line end.
SomeRandomBloke 0:7efa6655d94b 325 * c - either PIXEL_ON, PIXEL_OFF or PIXEL_XOR
SomeRandomBloke 0:7efa6655d94b 326 * Return value : none
SomeRandomBloke 0:7efa6655d94b 327 */
SomeRandomBloke 0:7efa6655d94b 328 void N3310LCD::drawLine(unsigned char x1, unsigned char y1,
SomeRandomBloke 1:51961974fe55 329 unsigned char x2, unsigned char y2, unsigned char c)
SomeRandomBloke 1:51961974fe55 330 {
SomeRandomBloke 0:7efa6655d94b 331 int dx, dy, stepx, stepy, fraction;
SomeRandomBloke 0:7efa6655d94b 332
SomeRandomBloke 0:7efa6655d94b 333 /* Calculate differential form */
SomeRandomBloke 0:7efa6655d94b 334 /* dy y2 - y1 */
SomeRandomBloke 0:7efa6655d94b 335 /* -- = ------- */
SomeRandomBloke 0:7efa6655d94b 336 /* dx x2 - x1 */
SomeRandomBloke 0:7efa6655d94b 337
SomeRandomBloke 0:7efa6655d94b 338 /* Take differences */
SomeRandomBloke 0:7efa6655d94b 339 dy = y2 - y1;
SomeRandomBloke 0:7efa6655d94b 340 dx = x2 - x1;
SomeRandomBloke 0:7efa6655d94b 341
SomeRandomBloke 0:7efa6655d94b 342 /* dy is negative */
SomeRandomBloke 0:7efa6655d94b 343 if ( dy < 0 ) {
SomeRandomBloke 0:7efa6655d94b 344 dy = -dy;
SomeRandomBloke 0:7efa6655d94b 345 stepy = -1;
SomeRandomBloke 0:7efa6655d94b 346 } else {
SomeRandomBloke 0:7efa6655d94b 347 stepy = 1;
SomeRandomBloke 0:7efa6655d94b 348 }
SomeRandomBloke 0:7efa6655d94b 349
SomeRandomBloke 0:7efa6655d94b 350 /* dx is negative */
SomeRandomBloke 0:7efa6655d94b 351 if ( dx < 0 ) {
SomeRandomBloke 0:7efa6655d94b 352 dx = -dx;
SomeRandomBloke 0:7efa6655d94b 353 stepx = -1;
SomeRandomBloke 0:7efa6655d94b 354 } else {
SomeRandomBloke 0:7efa6655d94b 355 stepx = 1;
SomeRandomBloke 0:7efa6655d94b 356 }
SomeRandomBloke 0:7efa6655d94b 357
SomeRandomBloke 0:7efa6655d94b 358 dx <<= 1;
SomeRandomBloke 0:7efa6655d94b 359 dy <<= 1;
SomeRandomBloke 0:7efa6655d94b 360
SomeRandomBloke 0:7efa6655d94b 361 /* Draw initial position */
SomeRandomBloke 0:7efa6655d94b 362 setPixel( x1, y1, c );
SomeRandomBloke 0:7efa6655d94b 363
SomeRandomBloke 0:7efa6655d94b 364 /* Draw next positions until end */
SomeRandomBloke 0:7efa6655d94b 365 if ( dx > dy ) {
SomeRandomBloke 0:7efa6655d94b 366 /* Take fraction */
SomeRandomBloke 0:7efa6655d94b 367 fraction = dy - ( dx >> 1);
SomeRandomBloke 0:7efa6655d94b 368 while ( x1 != x2 ) {
SomeRandomBloke 0:7efa6655d94b 369 if ( fraction >= 0 ) {
SomeRandomBloke 0:7efa6655d94b 370 y1 += stepy;
SomeRandomBloke 0:7efa6655d94b 371 fraction -= dx;
SomeRandomBloke 0:7efa6655d94b 372 }
SomeRandomBloke 0:7efa6655d94b 373 x1 += stepx;
SomeRandomBloke 0:7efa6655d94b 374 fraction += dy;
SomeRandomBloke 0:7efa6655d94b 375
SomeRandomBloke 0:7efa6655d94b 376 /* Draw calculated point */
SomeRandomBloke 0:7efa6655d94b 377 setPixel( x1, y1, c );
SomeRandomBloke 0:7efa6655d94b 378 }
SomeRandomBloke 0:7efa6655d94b 379 } else {
SomeRandomBloke 0:7efa6655d94b 380 /* Take fraction */
SomeRandomBloke 0:7efa6655d94b 381 fraction = dx - ( dy >> 1);
SomeRandomBloke 0:7efa6655d94b 382 while ( y1 != y2 ) {
SomeRandomBloke 0:7efa6655d94b 383 if ( fraction >= 0 ) {
SomeRandomBloke 0:7efa6655d94b 384 x1 += stepx;
SomeRandomBloke 0:7efa6655d94b 385 fraction -= dy;
SomeRandomBloke 0:7efa6655d94b 386 }
SomeRandomBloke 0:7efa6655d94b 387 y1 += stepy;
SomeRandomBloke 0:7efa6655d94b 388 fraction += dx;
SomeRandomBloke 0:7efa6655d94b 389
SomeRandomBloke 0:7efa6655d94b 390 /* Draw calculated point */
SomeRandomBloke 0:7efa6655d94b 391 setPixel( x1, y1, c );
SomeRandomBloke 0:7efa6655d94b 392 }
SomeRandomBloke 0:7efa6655d94b 393 }
SomeRandomBloke 0:7efa6655d94b 394 }
SomeRandomBloke 0:7efa6655d94b 395
SomeRandomBloke 0:7efa6655d94b 396
SomeRandomBloke 0:7efa6655d94b 397 /*
SomeRandomBloke 0:7efa6655d94b 398 * Name : drawRectangle
SomeRandomBloke 0:7efa6655d94b 399 * Description : Draw a rectangle given to top left and bottom right points
SomeRandomBloke 0:7efa6655d94b 400 * Argument(s) : x1, y1 - Absolute pixel coordinates for top left corner
SomeRandomBloke 0:7efa6655d94b 401 * x2, y2 - Absolute pixel coordinates for bottom right corner
SomeRandomBloke 0:7efa6655d94b 402 * c - either PIXEL_ON, PIXEL_OFF or PIXEL_XOR
SomeRandomBloke 0:7efa6655d94b 403 * Return value : none
SomeRandomBloke 0:7efa6655d94b 404 */
SomeRandomBloke 0:7efa6655d94b 405 void N3310LCD::drawRectangle(unsigned char x1, unsigned char y1,
SomeRandomBloke 1:51961974fe55 406 unsigned char x2, unsigned char y2, unsigned char c)
SomeRandomBloke 1:51961974fe55 407 {
SomeRandomBloke 0:7efa6655d94b 408 drawLine( x1, y1, x2, y1, c );
SomeRandomBloke 0:7efa6655d94b 409 drawLine( x1, y1, x1, y2, c );
SomeRandomBloke 0:7efa6655d94b 410 drawLine( x1, y2, x2, y2, c );
SomeRandomBloke 0:7efa6655d94b 411 drawLine( x2, y1, x2, y2, c );
SomeRandomBloke 0:7efa6655d94b 412 }
SomeRandomBloke 0:7efa6655d94b 413
SomeRandomBloke 0:7efa6655d94b 414
SomeRandomBloke 0:7efa6655d94b 415 /*
SomeRandomBloke 0:7efa6655d94b 416 * Name : drawFilledRectangle
SomeRandomBloke 0:7efa6655d94b 417 * Description : Draw a filled rectangle given to top left and bottom right points
SomeRandomBloke 0:7efa6655d94b 418 * just simply draws horizontal lines where the rectangle would be
SomeRandomBloke 0:7efa6655d94b 419 * Argument(s) : x1, y1 - Absolute pixel coordinates for top left corner
SomeRandomBloke 0:7efa6655d94b 420 * x2, y2 - Absolute pixel coordinates for bottom right corner
SomeRandomBloke 0:7efa6655d94b 421 * c - either PIXEL_ON, PIXEL_OFF or PIXEL_XOR
SomeRandomBloke 0:7efa6655d94b 422 * Return value : none
SomeRandomBloke 0:7efa6655d94b 423 */
SomeRandomBloke 0:7efa6655d94b 424 void N3310LCD::drawFilledRectangle(unsigned char x1, unsigned char y1,
SomeRandomBloke 1:51961974fe55 425 unsigned char x2, unsigned char y2, unsigned char c)
SomeRandomBloke 1:51961974fe55 426 {
SomeRandomBloke 0:7efa6655d94b 427 for(int i=y1; i <= y2; i++ ) {
SomeRandomBloke 0:7efa6655d94b 428 drawLine( x1, i, x2, i, c );
SomeRandomBloke 0:7efa6655d94b 429 }
SomeRandomBloke 0:7efa6655d94b 430 }
SomeRandomBloke 0:7efa6655d94b 431
SomeRandomBloke 0:7efa6655d94b 432
SomeRandomBloke 0:7efa6655d94b 433 /*
SomeRandomBloke 0:7efa6655d94b 434 * Name : drawCircle
SomeRandomBloke 1:51961974fe55 435 * Description : Draw a circle using Bresenham's algorithm.
SomeRandomBloke 0:7efa6655d94b 436 * Some small circles will look like squares!!
SomeRandomBloke 0:7efa6655d94b 437 * Argument(s) : xc, yc - Centre of circle
SomeRandomBloke 0:7efa6655d94b 438 * r - Radius
SomeRandomBloke 0:7efa6655d94b 439 * c - either PIXEL_ON, PIXEL_OFF or PIXEL_XOR
SomeRandomBloke 1:51961974fe55 440 * Return value : None
SomeRandomBloke 0:7efa6655d94b 441 */
SomeRandomBloke 0:7efa6655d94b 442 void N3310LCD::drawCircle(unsigned char xc, unsigned char yc,
SomeRandomBloke 1:51961974fe55 443 unsigned char r, unsigned char c)
SomeRandomBloke 1:51961974fe55 444 {
SomeRandomBloke 0:7efa6655d94b 445 int x=0;
SomeRandomBloke 0:7efa6655d94b 446 int y=r;
SomeRandomBloke 0:7efa6655d94b 447 int p=3-(2*r);
SomeRandomBloke 0:7efa6655d94b 448
SomeRandomBloke 1:51961974fe55 449 setPixel( (uint8_t)(xc+x),(uint8_t)(yc-y), c);
SomeRandomBloke 0:7efa6655d94b 450
SomeRandomBloke 1:51961974fe55 451 for(x=0; x<=y; x++) {
SomeRandomBloke 0:7efa6655d94b 452 if (p<0) {
SomeRandomBloke 0:7efa6655d94b 453 y=y;
SomeRandomBloke 0:7efa6655d94b 454 p=(p+(4*x)+6);
SomeRandomBloke 0:7efa6655d94b 455 } else {
SomeRandomBloke 0:7efa6655d94b 456 y=y-1;
SomeRandomBloke 0:7efa6655d94b 457 p=p+((4*(x-y)+10));
SomeRandomBloke 0:7efa6655d94b 458 }
SomeRandomBloke 0:7efa6655d94b 459
SomeRandomBloke 0:7efa6655d94b 460 setPixel((uint8_t)(xc+x),(uint8_t)(yc-y), c);
SomeRandomBloke 0:7efa6655d94b 461 setPixel((uint8_t)(xc-x),(uint8_t)(yc-y), c);
SomeRandomBloke 0:7efa6655d94b 462 setPixel((uint8_t)(xc+x),(uint8_t)(yc+y), c);
SomeRandomBloke 0:7efa6655d94b 463 setPixel((uint8_t)(xc-x),(uint8_t)(yc+y), c);
SomeRandomBloke 0:7efa6655d94b 464 setPixel((uint8_t)(xc+y),(uint8_t)(yc-x), c);
SomeRandomBloke 0:7efa6655d94b 465 setPixel((uint8_t)(xc-y),(uint8_t)(yc-x), c);
SomeRandomBloke 0:7efa6655d94b 466 setPixel((uint8_t)(xc+y),(uint8_t)(yc+x), c);
SomeRandomBloke 0:7efa6655d94b 467 setPixel((uint8_t)(xc-y),(uint8_t)(yc+x), c);
SomeRandomBloke 0:7efa6655d94b 468 }
SomeRandomBloke 0:7efa6655d94b 469 }