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@5:1fd7af32e521, 2013-03-27 (annotated)

Committer:
SomeRandomBloke
Date:
Wed Mar 27 21:09:58 2013 +0000
Revision:
5:1fd7af32e521
Parent:
4:90dce6032a37
Child:
6:46bcc4e584c4
Used Stream class for printf output

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"
SomeRandomBloke 0:7efa6655d94b 28
SomeRandomBloke 0:7efa6655d94b 29 static unsigned char lcd_buffer[LCDROWMAX][LCDCOLMAX];
SomeRandomBloke 3:9808f63fd2fe 30 // current cursor postition
SomeRandomBloke 3:9808f63fd2fe 31 static unsigned char cursor_row = 0; /* 0-5 */
SomeRandomBloke 3:9808f63fd2fe 32 static unsigned char cursor_col = 0; /* 0-83 */
SomeRandomBloke 3:9808f63fd2fe 33 unsigned char *fontStart; // Start of font data
SomeRandomBloke 3:9808f63fd2fe 34 int8_t fontWidth; // Font width
SomeRandomBloke 3:9808f63fd2fe 35 int8_t fontHeight; // Font height
SomeRandomBloke 4:90dce6032a37 36 int16_t fontStartChar; // Start, usually 32
SomeRandomBloke 4:90dce6032a37 37 int16_t fontEndChar; // End character, usually 127 or 128
SomeRandomBloke 0:7efa6655d94b 38
SomeRandomBloke 1:51961974fe55 39 N3310LCD::N3310LCD (PinName mosi, PinName miso, PinName sck,
SomeRandomBloke 1:51961974fe55 40 PinName ce, PinName dat_cmd, PinName lcd_rst, PinName bl_on) :
SomeRandomBloke 1:51961974fe55 41 lcdPort(mosi, miso, sck),
SomeRandomBloke 4:90dce6032a37 42 ceWire(ce), dcWire(dat_cmd), rstWire(lcd_rst), blWire(bl_on) {
SomeRandomBloke 0:7efa6655d94b 43 }
SomeRandomBloke 0:7efa6655d94b 44
SomeRandomBloke 0:7efa6655d94b 45 void N3310LCD::init()
SomeRandomBloke 0:7efa6655d94b 46 {
SomeRandomBloke 0:7efa6655d94b 47 // use default SPI format
SomeRandomBloke 0:7efa6655d94b 48 lcdPort.format(8,0);
SomeRandomBloke 4:90dce6032a37 49 lcdPort.frequency(8000000); // Lets try 8MHz
SomeRandomBloke 1:51961974fe55 50
SomeRandomBloke 0:7efa6655d94b 51 // lcd reset
SomeRandomBloke 0:7efa6655d94b 52 wait_ms(1);
SomeRandomBloke 0:7efa6655d94b 53 rstWire = 0;
SomeRandomBloke 0:7efa6655d94b 54 wait_ms(1);
SomeRandomBloke 0:7efa6655d94b 55 rstWire = 1;
SomeRandomBloke 1:51961974fe55 56
SomeRandomBloke 3:9808f63fd2fe 57 writeCommand(0x21); // LCD Extended Commands
SomeRandomBloke 3:9808f63fd2fe 58 writeCommand(0xC0); // Set LCD Vop (Contrast)
SomeRandomBloke 3:9808f63fd2fe 59 writeCommand(0x06); // Set temp coefficient
SomeRandomBloke 3:9808f63fd2fe 60 writeCommand(0x13); // LCD bias mode1:48
SomeRandomBloke 3:9808f63fd2fe 61 writeCommand(0x20); // LCD Standard Commands, Horizontal addressing mode
SomeRandomBloke 3:9808f63fd2fe 62 writeCommand(0x0c); // LCD in normal mode
SomeRandomBloke 1:51961974fe55 63 cls();
SomeRandomBloke 3:9808f63fd2fe 64 setFont( FONT_5x7 );
SomeRandomBloke 3:9808f63fd2fe 65 // setFont( FONT_6x8 );
SomeRandomBloke 3:9808f63fd2fe 66
SomeRandomBloke 3:9808f63fd2fe 67 }
SomeRandomBloke 3:9808f63fd2fe 68
SomeRandomBloke 3:9808f63fd2fe 69 void N3310LCD::setFont(BYTE font )
SomeRandomBloke 3:9808f63fd2fe 70 {
SomeRandomBloke 3:9808f63fd2fe 71
SomeRandomBloke 3:9808f63fd2fe 72 switch( font ) {
SomeRandomBloke 3:9808f63fd2fe 73 case FONT_6x8:
SomeRandomBloke 3:9808f63fd2fe 74 fontWidth = 6;
SomeRandomBloke 3:9808f63fd2fe 75 fontHeight = 8;
SomeRandomBloke 4:90dce6032a37 76 fontStartChar = 32;
SomeRandomBloke 4:90dce6032a37 77 fontEndChar = 128;
SomeRandomBloke 3:9808f63fd2fe 78 fontStart = font6_8;
SomeRandomBloke 3:9808f63fd2fe 79 break;
SomeRandomBloke 4:90dce6032a37 80
SomeRandomBloke 4:90dce6032a37 81 /* case FONT_ALPHA_17x17:
SomeRandomBloke 4:90dce6032a37 82 fontWidth = 17;
SomeRandomBloke 4:90dce6032a37 83 fontHeight = 17;
SomeRandomBloke 4:90dce6032a37 84 fontStartChar = 65;
SomeRandomBloke 4:90dce6032a37 85 fontEndChar = 91;
SomeRandomBloke 4:90dce6032a37 86 fontStart = Liberation_Sans17x17_Alpha;
SomeRandomBloke 4:90dce6032a37 87 break;
SomeRandomBloke 4:90dce6032a37 88 */
SomeRandomBloke 3:9808f63fd2fe 89 default:
SomeRandomBloke 3:9808f63fd2fe 90 fontWidth = 5;
SomeRandomBloke 3:9808f63fd2fe 91 fontHeight = 7;
SomeRandomBloke 4:90dce6032a37 92 fontStartChar = 32;
SomeRandomBloke 4:90dce6032a37 93 fontEndChar = 128;
SomeRandomBloke 3:9808f63fd2fe 94 fontStart = font5_7;
SomeRandomBloke 3:9808f63fd2fe 95 break;
SomeRandomBloke 3:9808f63fd2fe 96 }
SomeRandomBloke 0:7efa6655d94b 97 }
SomeRandomBloke 0:7efa6655d94b 98
SomeRandomBloke 0:7efa6655d94b 99 void N3310LCD::cls()
SomeRandomBloke 0:7efa6655d94b 100 {
SomeRandomBloke 3:9808f63fd2fe 101 writeCommand(0x40); // column
SomeRandomBloke 3:9808f63fd2fe 102 writeCommand(0x80); // row
SomeRandomBloke 3:9808f63fd2fe 103 for(int i=0; i< LCDROWMAX; i++) {
SomeRandomBloke 3:9808f63fd2fe 104 for(int j=0; j< LCDCOLMAX; j++) {
SomeRandomBloke 3:9808f63fd2fe 105 writeData( 0x00 );
SomeRandomBloke 3:9808f63fd2fe 106 lcd_buffer[i][j] = 0x00;
SomeRandomBloke 3:9808f63fd2fe 107 }
SomeRandomBloke 0:7efa6655d94b 108 }
SomeRandomBloke 0:7efa6655d94b 109 }
SomeRandomBloke 0:7efa6655d94b 110
SomeRandomBloke 0:7efa6655d94b 111 void N3310LCD::backlight(eBacklight state)
SomeRandomBloke 0:7efa6655d94b 112 {
SomeRandomBloke 0:7efa6655d94b 113 // switch off/on back light
SomeRandomBloke 0:7efa6655d94b 114 blWire = state;
SomeRandomBloke 0:7efa6655d94b 115 }
SomeRandomBloke 0:7efa6655d94b 116
SomeRandomBloke 3:9808f63fd2fe 117 void N3310LCD::writeCommand(BYTE data)
SomeRandomBloke 0:7efa6655d94b 118 {
SomeRandomBloke 0:7efa6655d94b 119 // bring CS low for write
SomeRandomBloke 0:7efa6655d94b 120 ceWire = 0;
SomeRandomBloke 3:9808f63fd2fe 121 dcWire = 0;
SomeRandomBloke 1:51961974fe55 122
SomeRandomBloke 3:9808f63fd2fe 123 lcdPort.write(data);
SomeRandomBloke 3:9808f63fd2fe 124
SomeRandomBloke 3:9808f63fd2fe 125 // write finished
SomeRandomBloke 3:9808f63fd2fe 126 ceWire = 1;
SomeRandomBloke 3:9808f63fd2fe 127 }
SomeRandomBloke 3:9808f63fd2fe 128
SomeRandomBloke 3:9808f63fd2fe 129 void N3310LCD::writeData(BYTE data)
SomeRandomBloke 3:9808f63fd2fe 130 {
SomeRandomBloke 3:9808f63fd2fe 131 // bring CS low for write
SomeRandomBloke 3:9808f63fd2fe 132 ceWire = 0;
SomeRandomBloke 3:9808f63fd2fe 133 dcWire = 1;
SomeRandomBloke 1:51961974fe55 134
SomeRandomBloke 0:7efa6655d94b 135 lcdPort.write(data);
SomeRandomBloke 1:51961974fe55 136
SomeRandomBloke 0:7efa6655d94b 137 // write finished
SomeRandomBloke 0:7efa6655d94b 138 ceWire = 1;
SomeRandomBloke 0:7efa6655d94b 139 }
SomeRandomBloke 0:7efa6655d94b 140
SomeRandomBloke 0:7efa6655d94b 141 void N3310LCD::locate(BYTE xPos, BYTE yPos)
SomeRandomBloke 0:7efa6655d94b 142 {
SomeRandomBloke 3:9808f63fd2fe 143 writeCommand(0x40 | yPos); // column
SomeRandomBloke 3:9808f63fd2fe 144 writeCommand(0x80 | xPos); // row
SomeRandomBloke 3:9808f63fd2fe 145 cursor_row = yPos;
SomeRandomBloke 3:9808f63fd2fe 146 cursor_col = xPos;
SomeRandomBloke 0:7efa6655d94b 147 }
SomeRandomBloke 0:7efa6655d94b 148
SomeRandomBloke 0:7efa6655d94b 149 void N3310LCD::drawBitmap(BYTE xPos, BYTE yPos, BYTE* bitmap, BYTE bmpXSize, BYTE bmpYSize)
SomeRandomBloke 0:7efa6655d94b 150 {
SomeRandomBloke 0:7efa6655d94b 151 BYTE row;
SomeRandomBloke 1:51961974fe55 152
SomeRandomBloke 0:7efa6655d94b 153 if (0 == bmpYSize % 8)
SomeRandomBloke 1:51961974fe55 154 row = bmpYSize/8;
SomeRandomBloke 0:7efa6655d94b 155 else
SomeRandomBloke 0:7efa6655d94b 156 row = bmpYSize/8 + 1;
SomeRandomBloke 1:51961974fe55 157
SomeRandomBloke 1:51961974fe55 158 for (BYTE n = 0; n < row; n++) {
SomeRandomBloke 0:7efa6655d94b 159 locate(xPos, yPos);
SomeRandomBloke 1:51961974fe55 160 for(BYTE i = 0; i < bmpXSize; i++) {
SomeRandomBloke 3:9808f63fd2fe 161 writeData(bitmap[i + (n * bmpXSize)]);
SomeRandomBloke 0:7efa6655d94b 162 }
SomeRandomBloke 1:51961974fe55 163 yPos++;
SomeRandomBloke 0:7efa6655d94b 164 }
SomeRandomBloke 0:7efa6655d94b 165 }
SomeRandomBloke 0:7efa6655d94b 166
SomeRandomBloke 0:7efa6655d94b 167 /*
SomeRandomBloke 1:51961974fe55 168 * Name : clearBitmap
SomeRandomBloke 0:7efa6655d94b 169 * Description : Clear an area of the screen, usually to blank out a
SomeRandomBloke 0:7efa6655d94b 170 * previously drawn image or part of image.
SomeRandomBloke 0:7efa6655d94b 171 * Argument(s) : x, y - Position on screen, x 0-83, y 1-6
SomeRandomBloke 0:7efa6655d94b 172 * size_x,size_y - Size of the image in pixels,
SomeRandomBloke 0:7efa6655d94b 173 * size_y is multiple of 8
SomeRandomBloke 1:51961974fe55 174 * Return value : none
SomeRandomBloke 0:7efa6655d94b 175 */
SomeRandomBloke 0:7efa6655d94b 176 void N3310LCD::clearBitmap( unsigned char x,unsigned char y,
SomeRandomBloke 1:51961974fe55 177 unsigned char size_x,unsigned char size_y)
SomeRandomBloke 1:51961974fe55 178 {
SomeRandomBloke 0:7efa6655d94b 179 unsigned int i,n;
SomeRandomBloke 0:7efa6655d94b 180 unsigned char row;
SomeRandomBloke 1:51961974fe55 181
SomeRandomBloke 0:7efa6655d94b 182 row = (size_y % 8 == 0 ) ? size_y / 8 : size_y / 8 + 1;
SomeRandomBloke 1:51961974fe55 183
SomeRandomBloke 1:51961974fe55 184 for (n=0; n<row; n++) {
SomeRandomBloke 0:7efa6655d94b 185 locate(x,y);
SomeRandomBloke 0:7efa6655d94b 186 for(i=0; i<size_x; i++) {
SomeRandomBloke 3:9808f63fd2fe 187 writeData( 0x00 );
SomeRandomBloke 0:7efa6655d94b 188 }
SomeRandomBloke 1:51961974fe55 189 y++;
SomeRandomBloke 1:51961974fe55 190 }
SomeRandomBloke 0:7efa6655d94b 191 }
SomeRandomBloke 0:7efa6655d94b 192
SomeRandomBloke 0:7efa6655d94b 193 void N3310LCD::writeString(BYTE xPos, BYTE yPos, char* string, eDisplayMode mode)
SomeRandomBloke 0:7efa6655d94b 194 {
SomeRandomBloke 0:7efa6655d94b 195 locate(xPos, yPos);
SomeRandomBloke 1:51961974fe55 196
SomeRandomBloke 1:51961974fe55 197 while (*string) {
SomeRandomBloke 0:7efa6655d94b 198 writeChar(*string++, mode);
SomeRandomBloke 0:7efa6655d94b 199 }
SomeRandomBloke 0:7efa6655d94b 200 }
SomeRandomBloke 1:51961974fe55 201
SomeRandomBloke 0:7efa6655d94b 202 void N3310LCD::writeStringBig(BYTE xPos, BYTE yPos, char* string, eDisplayMode mode)
SomeRandomBloke 0:7efa6655d94b 203 {
SomeRandomBloke 1:51961974fe55 204 while (*string) {
SomeRandomBloke 0:7efa6655d94b 205 writeCharBig(xPos, yPos, *string , mode);
SomeRandomBloke 1:51961974fe55 206
SomeRandomBloke 0:7efa6655d94b 207 if('.' == *string++)
SomeRandomBloke 0:7efa6655d94b 208 xPos += 5;
SomeRandomBloke 0:7efa6655d94b 209 else
SomeRandomBloke 0:7efa6655d94b 210 xPos += 12;
SomeRandomBloke 0:7efa6655d94b 211 }
SomeRandomBloke 0:7efa6655d94b 212 }
SomeRandomBloke 0:7efa6655d94b 213
SomeRandomBloke 0:7efa6655d94b 214 void N3310LCD::writeChar(BYTE ch, eDisplayMode mode)
SomeRandomBloke 0:7efa6655d94b 215 {
SomeRandomBloke 4:90dce6032a37 216 ch -= fontStartChar;
SomeRandomBloke 0:7efa6655d94b 217
SomeRandomBloke 3:9808f63fd2fe 218 if (cursor_col > LCDCOLMAX - (fontWidth+1)) cursor_col = LCDCOLMAX - (fontWidth+1); // ensure space is available for the character
SomeRandomBloke 3:9808f63fd2fe 219 if (cursor_row > LCDROWMAX - 1) cursor_row = LCDROWMAX - 1; // ensure space is available for the character
SomeRandomBloke 3:9808f63fd2fe 220 lcd_buffer[cursor_row][cursor_col] = 0x00;
SomeRandomBloke 3:9808f63fd2fe 221 for(int8_t j=0; j< fontHeight; j++) {
SomeRandomBloke 4:90dce6032a37 222 lcd_buffer[cursor_row][cursor_col + j] = fontStart[(ch)*fontWidth + j];
SomeRandomBloke 0:7efa6655d94b 223 }
SomeRandomBloke 3:9808f63fd2fe 224
SomeRandomBloke 3:9808f63fd2fe 225 lcd_buffer[cursor_row][cursor_col + fontWidth] = 0x00;
SomeRandomBloke 3:9808f63fd2fe 226
SomeRandomBloke 3:9808f63fd2fe 227 for(int8_t j=0; j< (fontWidth+1); j++) {
SomeRandomBloke 3:9808f63fd2fe 228 if( mode == NORMAL )
SomeRandomBloke 3:9808f63fd2fe 229 writeData(lcd_buffer[cursor_row][cursor_col++]);
SomeRandomBloke 3:9808f63fd2fe 230 else
SomeRandomBloke 3:9808f63fd2fe 231 writeData(lcd_buffer[cursor_row][cursor_col++] ^ 0xff);
SomeRandomBloke 3:9808f63fd2fe 232 if (cursor_col >= LCDCOLMAX) {
SomeRandomBloke 3:9808f63fd2fe 233 cursor_col=0;
SomeRandomBloke 3:9808f63fd2fe 234 cursor_row++;
SomeRandomBloke 3:9808f63fd2fe 235 if (cursor_row >= LCDROWMAX) cursor_row=0;
SomeRandomBloke 3:9808f63fd2fe 236 }
SomeRandomBloke 3:9808f63fd2fe 237 }
SomeRandomBloke 5:1fd7af32e521 238 }
SomeRandomBloke 3:9808f63fd2fe 239
SomeRandomBloke 5:1fd7af32e521 240 int N3310LCD::_putc(int c) {
SomeRandomBloke 5:1fd7af32e521 241 writeChar(c, NORMAL);
SomeRandomBloke 5:1fd7af32e521 242 return c;
SomeRandomBloke 5:1fd7af32e521 243 }
SomeRandomBloke 5:1fd7af32e521 244 int N3310LCD::_getc() {
SomeRandomBloke 5:1fd7af32e521 245 return -1;
SomeRandomBloke 0:7efa6655d94b 246 }
SomeRandomBloke 0:7efa6655d94b 247
SomeRandomBloke 0:7efa6655d94b 248 void N3310LCD::writeCharBig(BYTE xPos, BYTE yPos, BYTE ch, eDisplayMode mode)
SomeRandomBloke 0:7efa6655d94b 249 {
SomeRandomBloke 0:7efa6655d94b 250 BYTE sendByte;
SomeRandomBloke 3:9808f63fd2fe 251 int8_t colsUsed = 12;
SomeRandomBloke 0:7efa6655d94b 252 unsigned char* pFont = (unsigned char *) big_number;
SomeRandomBloke 1:51961974fe55 253
SomeRandomBloke 3:9808f63fd2fe 254
SomeRandomBloke 3:9808f63fd2fe 255 if(ch == '.') {
SomeRandomBloke 0:7efa6655d94b 256 ch = 10;
SomeRandomBloke 3:9808f63fd2fe 257 colsUsed=5;
SomeRandomBloke 3:9808f63fd2fe 258 } else if (ch == '+')
SomeRandomBloke 0:7efa6655d94b 259 ch = 11;
SomeRandomBloke 3:9808f63fd2fe 260 else if (ch == '-')
SomeRandomBloke 0:7efa6655d94b 261 ch = 12;
SomeRandomBloke 3:9808f63fd2fe 262 else if (ch == ':')
SomeRandomBloke 3:9808f63fd2fe 263 ch = 13;
SomeRandomBloke 3:9808f63fd2fe 264 else if (ch == '/')
SomeRandomBloke 3:9808f63fd2fe 265 ch = 14;
SomeRandomBloke 0:7efa6655d94b 266 else
SomeRandomBloke 0:7efa6655d94b 267 ch = ch & 0x0f;
SomeRandomBloke 1:51961974fe55 268
SomeRandomBloke 3:9808f63fd2fe 269 /*
SomeRandomBloke 3:9808f63fd2fe 270 for(BYTE i = 0; i < 3; i++) {
SomeRandomBloke 3:9808f63fd2fe 271 locate(xPos, yPos + i);
SomeRandomBloke 1:51961974fe55 272
SomeRandomBloke 3:9808f63fd2fe 273 for(BYTE j = 0; j < 16; j++) {
SomeRandomBloke 3:9808f63fd2fe 274 sendByte = *(pFont + ch*48 + i*16 + j);
SomeRandomBloke 3:9808f63fd2fe 275 writeData((mode == NORMAL)? sendByte : (sendByte^0xff));
SomeRandomBloke 3:9808f63fd2fe 276 }
SomeRandomBloke 3:9808f63fd2fe 277 }
SomeRandomBloke 3:9808f63fd2fe 278 */
SomeRandomBloke 3:9808f63fd2fe 279 if (xPos > LCDCOLMAX - colsUsed) xPos = LCDCOLMAX - colsUsed ; // ensure space is available for the character
SomeRandomBloke 3:9808f63fd2fe 280 if (yPos > LCDROWMAX - 3) yPos = LCDROWMAX - 3 ; // ensure space is available for the character
SomeRandomBloke 3:9808f63fd2fe 281
SomeRandomBloke 3:9808f63fd2fe 282 for(int8_t i=0; i<3; i++) {
SomeRandomBloke 3:9808f63fd2fe 283 locate( xPos, yPos + i);
SomeRandomBloke 3:9808f63fd2fe 284
SomeRandomBloke 3:9808f63fd2fe 285 for(int8_t j=0; j<colsUsed; j++) {
SomeRandomBloke 0:7efa6655d94b 286 sendByte = *(pFont + ch*48 + i*16 + j);
SomeRandomBloke 3:9808f63fd2fe 287 lcd_buffer[cursor_row][cursor_col + j] = (mode == NORMAL)? sendByte : (sendByte^0xff);
SomeRandomBloke 4:90dce6032a37 288 writeData( lcd_buffer[cursor_row][cursor_col + j] );
SomeRandomBloke 0:7efa6655d94b 289 }
SomeRandomBloke 0:7efa6655d94b 290 }
SomeRandomBloke 0:7efa6655d94b 291 }
SomeRandomBloke 0:7efa6655d94b 292
SomeRandomBloke 0:7efa6655d94b 293 /*
SomeRandomBloke 0:7efa6655d94b 294 * Name : setPixel
SomeRandomBloke 0:7efa6655d94b 295 * Description : Set a single pixel either on or off, update display buffer.
SomeRandomBloke 0:7efa6655d94b 296 * Argument(s) : x,y - position, x = 0-83, y = 0-6
SomeRandomBloke 0:7efa6655d94b 297 * c - colour, either PIXEL_ON, PIXEL_OFF or PIXEL_XOR
SomeRandomBloke 0:7efa6655d94b 298 * Return value : none
SomeRandomBloke 0:7efa6655d94b 299 */
SomeRandomBloke 1:51961974fe55 300 void N3310LCD::setPixel( unsigned char x, unsigned char y, unsigned char c )
SomeRandomBloke 1:51961974fe55 301 {
SomeRandomBloke 1:51961974fe55 302 unsigned char value;
SomeRandomBloke 1:51961974fe55 303 unsigned char row;
SomeRandomBloke 1:51961974fe55 304
SomeRandomBloke 0:7efa6655d94b 305 // if( x < 0 || x >= LCDCOLMAX || y < 0 || y >= LCDPIXELROWMAX ) return;
SomeRandomBloke 0:7efa6655d94b 306 if( x >= LCDCOLMAX || y >= LCDPIXELROWMAX ) return;
SomeRandomBloke 0:7efa6655d94b 307
SomeRandomBloke 0:7efa6655d94b 308 row = y / 8;
SomeRandomBloke 0:7efa6655d94b 309
SomeRandomBloke 0:7efa6655d94b 310 value = lcd_buffer[row][x];
SomeRandomBloke 0:7efa6655d94b 311 if( c == PIXEL_ON ) {
SomeRandomBloke 0:7efa6655d94b 312 value |= (1 << (y % 8));
SomeRandomBloke 0:7efa6655d94b 313 } else if( c == PIXEL_XOR ) {
SomeRandomBloke 0:7efa6655d94b 314 value ^= (1 << (y % 8));
SomeRandomBloke 0:7efa6655d94b 315 } else {
SomeRandomBloke 0:7efa6655d94b 316 value &= ~(1 << (y % 8));
SomeRandomBloke 0:7efa6655d94b 317 }
SomeRandomBloke 0:7efa6655d94b 318
SomeRandomBloke 0:7efa6655d94b 319 lcd_buffer[row][x] = value;
SomeRandomBloke 0:7efa6655d94b 320 locate (x,row);
SomeRandomBloke 3:9808f63fd2fe 321 writeData(value);
SomeRandomBloke 0:7efa6655d94b 322 }
SomeRandomBloke 0:7efa6655d94b 323
SomeRandomBloke 0:7efa6655d94b 324
SomeRandomBloke 0:7efa6655d94b 325 /*
SomeRandomBloke 0:7efa6655d94b 326 * Name : drawLine
SomeRandomBloke 0:7efa6655d94b 327 * Description : Draws a line between two points on the display.
SomeRandomBloke 0:7efa6655d94b 328 * Argument(s) : x1, y1 - Absolute pixel coordinates for line origin.
SomeRandomBloke 0:7efa6655d94b 329 * x2, y2 - Absolute pixel coordinates for line end.
SomeRandomBloke 0:7efa6655d94b 330 * c - either PIXEL_ON, PIXEL_OFF or PIXEL_XOR
SomeRandomBloke 0:7efa6655d94b 331 * Return value : none
SomeRandomBloke 0:7efa6655d94b 332 */
SomeRandomBloke 0:7efa6655d94b 333 void N3310LCD::drawLine(unsigned char x1, unsigned char y1,
SomeRandomBloke 1:51961974fe55 334 unsigned char x2, unsigned char y2, unsigned char c)
SomeRandomBloke 1:51961974fe55 335 {
SomeRandomBloke 0:7efa6655d94b 336 int dx, dy, stepx, stepy, fraction;
SomeRandomBloke 0:7efa6655d94b 337
SomeRandomBloke 0:7efa6655d94b 338 /* Calculate differential form */
SomeRandomBloke 0:7efa6655d94b 339 /* dy y2 - y1 */
SomeRandomBloke 0:7efa6655d94b 340 /* -- = ------- */
SomeRandomBloke 0:7efa6655d94b 341 /* dx x2 - x1 */
SomeRandomBloke 0:7efa6655d94b 342
SomeRandomBloke 0:7efa6655d94b 343 /* Take differences */
SomeRandomBloke 0:7efa6655d94b 344 dy = y2 - y1;
SomeRandomBloke 0:7efa6655d94b 345 dx = x2 - x1;
SomeRandomBloke 0:7efa6655d94b 346
SomeRandomBloke 0:7efa6655d94b 347 /* dy is negative */
SomeRandomBloke 0:7efa6655d94b 348 if ( dy < 0 ) {
SomeRandomBloke 0:7efa6655d94b 349 dy = -dy;
SomeRandomBloke 0:7efa6655d94b 350 stepy = -1;
SomeRandomBloke 0:7efa6655d94b 351 } else {
SomeRandomBloke 0:7efa6655d94b 352 stepy = 1;
SomeRandomBloke 0:7efa6655d94b 353 }
SomeRandomBloke 0:7efa6655d94b 354
SomeRandomBloke 0:7efa6655d94b 355 /* dx is negative */
SomeRandomBloke 0:7efa6655d94b 356 if ( dx < 0 ) {
SomeRandomBloke 0:7efa6655d94b 357 dx = -dx;
SomeRandomBloke 0:7efa6655d94b 358 stepx = -1;
SomeRandomBloke 0:7efa6655d94b 359 } else {
SomeRandomBloke 0:7efa6655d94b 360 stepx = 1;
SomeRandomBloke 0:7efa6655d94b 361 }
SomeRandomBloke 0:7efa6655d94b 362
SomeRandomBloke 0:7efa6655d94b 363 dx <<= 1;
SomeRandomBloke 0:7efa6655d94b 364 dy <<= 1;
SomeRandomBloke 0:7efa6655d94b 365
SomeRandomBloke 0:7efa6655d94b 366 /* Draw initial position */
SomeRandomBloke 0:7efa6655d94b 367 setPixel( x1, y1, c );
SomeRandomBloke 0:7efa6655d94b 368
SomeRandomBloke 0:7efa6655d94b 369 /* Draw next positions until end */
SomeRandomBloke 0:7efa6655d94b 370 if ( dx > dy ) {
SomeRandomBloke 0:7efa6655d94b 371 /* Take fraction */
SomeRandomBloke 0:7efa6655d94b 372 fraction = dy - ( dx >> 1);
SomeRandomBloke 0:7efa6655d94b 373 while ( x1 != x2 ) {
SomeRandomBloke 0:7efa6655d94b 374 if ( fraction >= 0 ) {
SomeRandomBloke 0:7efa6655d94b 375 y1 += stepy;
SomeRandomBloke 0:7efa6655d94b 376 fraction -= dx;
SomeRandomBloke 0:7efa6655d94b 377 }
SomeRandomBloke 0:7efa6655d94b 378 x1 += stepx;
SomeRandomBloke 0:7efa6655d94b 379 fraction += dy;
SomeRandomBloke 0:7efa6655d94b 380
SomeRandomBloke 0:7efa6655d94b 381 /* Draw calculated point */
SomeRandomBloke 0:7efa6655d94b 382 setPixel( x1, y1, c );
SomeRandomBloke 0:7efa6655d94b 383 }
SomeRandomBloke 0:7efa6655d94b 384 } else {
SomeRandomBloke 0:7efa6655d94b 385 /* Take fraction */
SomeRandomBloke 0:7efa6655d94b 386 fraction = dx - ( dy >> 1);
SomeRandomBloke 0:7efa6655d94b 387 while ( y1 != y2 ) {
SomeRandomBloke 0:7efa6655d94b 388 if ( fraction >= 0 ) {
SomeRandomBloke 0:7efa6655d94b 389 x1 += stepx;
SomeRandomBloke 0:7efa6655d94b 390 fraction -= dy;
SomeRandomBloke 0:7efa6655d94b 391 }
SomeRandomBloke 0:7efa6655d94b 392 y1 += stepy;
SomeRandomBloke 0:7efa6655d94b 393 fraction += dx;
SomeRandomBloke 0:7efa6655d94b 394
SomeRandomBloke 0:7efa6655d94b 395 /* Draw calculated point */
SomeRandomBloke 0:7efa6655d94b 396 setPixel( x1, y1, c );
SomeRandomBloke 0:7efa6655d94b 397 }
SomeRandomBloke 0:7efa6655d94b 398 }
SomeRandomBloke 0:7efa6655d94b 399 }
SomeRandomBloke 0:7efa6655d94b 400
SomeRandomBloke 0:7efa6655d94b 401
SomeRandomBloke 0:7efa6655d94b 402 /*
SomeRandomBloke 0:7efa6655d94b 403 * Name : drawRectangle
SomeRandomBloke 0:7efa6655d94b 404 * Description : Draw a rectangle given to top left and bottom right points
SomeRandomBloke 0:7efa6655d94b 405 * Argument(s) : x1, y1 - Absolute pixel coordinates for top left corner
SomeRandomBloke 0:7efa6655d94b 406 * x2, y2 - Absolute pixel coordinates for bottom right corner
SomeRandomBloke 0:7efa6655d94b 407 * c - either PIXEL_ON, PIXEL_OFF or PIXEL_XOR
SomeRandomBloke 0:7efa6655d94b 408 * Return value : none
SomeRandomBloke 0:7efa6655d94b 409 */
SomeRandomBloke 0:7efa6655d94b 410 void N3310LCD::drawRectangle(unsigned char x1, unsigned char y1,
SomeRandomBloke 1:51961974fe55 411 unsigned char x2, unsigned char y2, unsigned char c)
SomeRandomBloke 1:51961974fe55 412 {
SomeRandomBloke 0:7efa6655d94b 413 drawLine( x1, y1, x2, y1, c );
SomeRandomBloke 0:7efa6655d94b 414 drawLine( x1, y1, x1, y2, c );
SomeRandomBloke 0:7efa6655d94b 415 drawLine( x1, y2, x2, y2, c );
SomeRandomBloke 0:7efa6655d94b 416 drawLine( x2, y1, x2, y2, c );
SomeRandomBloke 0:7efa6655d94b 417 }
SomeRandomBloke 0:7efa6655d94b 418
SomeRandomBloke 0:7efa6655d94b 419
SomeRandomBloke 0:7efa6655d94b 420 /*
SomeRandomBloke 0:7efa6655d94b 421 * Name : drawFilledRectangle
SomeRandomBloke 0:7efa6655d94b 422 * Description : Draw a filled rectangle given to top left and bottom right points
SomeRandomBloke 0:7efa6655d94b 423 * just simply draws horizontal lines where the rectangle would be
SomeRandomBloke 0:7efa6655d94b 424 * Argument(s) : x1, y1 - Absolute pixel coordinates for top left corner
SomeRandomBloke 0:7efa6655d94b 425 * x2, y2 - Absolute pixel coordinates for bottom right corner
SomeRandomBloke 0:7efa6655d94b 426 * c - either PIXEL_ON, PIXEL_OFF or PIXEL_XOR
SomeRandomBloke 0:7efa6655d94b 427 * Return value : none
SomeRandomBloke 0:7efa6655d94b 428 */
SomeRandomBloke 0:7efa6655d94b 429 void N3310LCD::drawFilledRectangle(unsigned char x1, unsigned char y1,
SomeRandomBloke 1:51961974fe55 430 unsigned char x2, unsigned char y2, unsigned char c)
SomeRandomBloke 1:51961974fe55 431 {
SomeRandomBloke 0:7efa6655d94b 432 for(int i=y1; i <= y2; i++ ) {
SomeRandomBloke 0:7efa6655d94b 433 drawLine( x1, i, x2, i, c );
SomeRandomBloke 0:7efa6655d94b 434 }
SomeRandomBloke 0:7efa6655d94b 435 }
SomeRandomBloke 0:7efa6655d94b 436
SomeRandomBloke 0:7efa6655d94b 437
SomeRandomBloke 0:7efa6655d94b 438 /*
SomeRandomBloke 0:7efa6655d94b 439 * Name : drawCircle
SomeRandomBloke 1:51961974fe55 440 * Description : Draw a circle using Bresenham's algorithm.
SomeRandomBloke 0:7efa6655d94b 441 * Some small circles will look like squares!!
SomeRandomBloke 0:7efa6655d94b 442 * Argument(s) : xc, yc - Centre of circle
SomeRandomBloke 0:7efa6655d94b 443 * r - Radius
SomeRandomBloke 0:7efa6655d94b 444 * c - either PIXEL_ON, PIXEL_OFF or PIXEL_XOR
SomeRandomBloke 1:51961974fe55 445 * Return value : None
SomeRandomBloke 0:7efa6655d94b 446 */
SomeRandomBloke 0:7efa6655d94b 447 void N3310LCD::drawCircle(unsigned char xc, unsigned char yc,
SomeRandomBloke 1:51961974fe55 448 unsigned char r, unsigned char c)
SomeRandomBloke 1:51961974fe55 449 {
SomeRandomBloke 0:7efa6655d94b 450 int x=0;
SomeRandomBloke 0:7efa6655d94b 451 int y=r;
SomeRandomBloke 0:7efa6655d94b 452 int p=3-(2*r);
SomeRandomBloke 0:7efa6655d94b 453
SomeRandomBloke 1:51961974fe55 454 setPixel( (uint8_t)(xc+x),(uint8_t)(yc-y), c);
SomeRandomBloke 0:7efa6655d94b 455
SomeRandomBloke 1:51961974fe55 456 for(x=0; x<=y; x++) {
SomeRandomBloke 0:7efa6655d94b 457 if (p<0) {
SomeRandomBloke 0:7efa6655d94b 458 y=y;
SomeRandomBloke 0:7efa6655d94b 459 p=(p+(4*x)+6);
SomeRandomBloke 0:7efa6655d94b 460 } else {
SomeRandomBloke 0:7efa6655d94b 461 y=y-1;
SomeRandomBloke 0:7efa6655d94b 462 p=p+((4*(x-y)+10));
SomeRandomBloke 0:7efa6655d94b 463 }
SomeRandomBloke 0:7efa6655d94b 464
SomeRandomBloke 0:7efa6655d94b 465 setPixel((uint8_t)(xc+x),(uint8_t)(yc-y), c);
SomeRandomBloke 0:7efa6655d94b 466 setPixel((uint8_t)(xc-x),(uint8_t)(yc-y), c);
SomeRandomBloke 0:7efa6655d94b 467 setPixel((uint8_t)(xc+x),(uint8_t)(yc+y), c);
SomeRandomBloke 0:7efa6655d94b 468 setPixel((uint8_t)(xc-x),(uint8_t)(yc+y), c);
SomeRandomBloke 0:7efa6655d94b 469 setPixel((uint8_t)(xc+y),(uint8_t)(yc-x), c);
SomeRandomBloke 0:7efa6655d94b 470 setPixel((uint8_t)(xc-y),(uint8_t)(yc-x), c);
SomeRandomBloke 0:7efa6655d94b 471 setPixel((uint8_t)(xc+y),(uint8_t)(yc+x), c);
SomeRandomBloke 0:7efa6655d94b 472 setPixel((uint8_t)(xc-y),(uint8_t)(yc+x), c);
SomeRandomBloke 0:7efa6655d94b 473 }
SomeRandomBloke 0:7efa6655d94b 474 }