Chris Styles / C12832

C12832 LCD with generic interface

Dependents:   SongsAndLights I2CSong app-shield-all LCD_Games ... more

Fork of C12832_lcd_fork by Chris Styles

This is derived from the great work done Peter Dresche. I simply removed the MCU specific code, and added a pinmap at the top level, so that this component can we wired up any way.

C12832.cpp@15:67dfa5550b73, 2014-01-30 (annotated)

Committer:
chris
Date:
Thu Jan 30 17:16:04 2014 +0000
Revision:
15:67dfa5550b73
Child:
16:7de323fa46fe
think this is anothe fork

Who changed what in which revision?

UserRevisionLine numberNew contents of line
chris 15:67dfa5550b73 1 /* mbed library for the mbed Lab Board 128*32 pixel LCD
chris 15:67dfa5550b73 2 * use C12832 controller
chris 15:67dfa5550b73 3 * Copyright (c) 2012 Peter Drescher - DC2PD
chris 15:67dfa5550b73 4 * Released under the MIT License: http://mbed.org/license/mit
chris 15:67dfa5550b73 5 *
chris 15:67dfa5550b73 6 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
chris 15:67dfa5550b73 7 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
chris 15:67dfa5550b73 8 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
chris 15:67dfa5550b73 9 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
chris 15:67dfa5550b73 10 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
chris 15:67dfa5550b73 11 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
chris 15:67dfa5550b73 12 * THE SOFTWARE.
chris 15:67dfa5550b73 13 */
chris 15:67dfa5550b73 14
chris 15:67dfa5550b73 15 // 13.10.12 initial design
chris 15:67dfa5550b73 16 // 25.10.12 add autorefresh of screen
chris 15:67dfa5550b73 17 // 25.10.12 add standart font
chris 15:67dfa5550b73 18 // 20.12.12 add bitmap graphics
chris 15:67dfa5550b73 19
chris 15:67dfa5550b73 20 // optional defines :
chris 15:67dfa5550b73 21 // #define debug_lcd 1
chris 15:67dfa5550b73 22
chris 15:67dfa5550b73 23 #include "C12832.h"
chris 15:67dfa5550b73 24 #include "mbed.h"
chris 15:67dfa5550b73 25 #include "stdio.h"
chris 15:67dfa5550b73 26 #include "Small_7.h"
chris 15:67dfa5550b73 27
chris 15:67dfa5550b73 28 #define BPP 1 // Bits per pixel
chris 15:67dfa5550b73 29
chris 15:67dfa5550b73 30
chris 15:67dfa5550b73 31 C12832_LCD::C12832_LCD(PinName mosi, PinName sck, PinName reset, PinName a0, PinName ncs, const char* name)
chris 15:67dfa5550b73 32 : _spi(mosi,NC,sck),_reset(reset),_A0(a0),_CS(ncs),GraphicsDisplay(name)
chris 15:67dfa5550b73 33 {
chris 15:67dfa5550b73 34 orientation = 1;
chris 15:67dfa5550b73 35 draw_mode = NORMAL;
chris 15:67dfa5550b73 36 char_x = 0;
chris 15:67dfa5550b73 37 lcd_reset();
chris 15:67dfa5550b73 38 }
chris 15:67dfa5550b73 39
chris 15:67dfa5550b73 40
chris 15:67dfa5550b73 41 int C12832_LCD::width()
chris 15:67dfa5550b73 42 {
chris 15:67dfa5550b73 43 if (orientation == 0 || orientation == 2) return 32;
chris 15:67dfa5550b73 44 else return 128;
chris 15:67dfa5550b73 45 }
chris 15:67dfa5550b73 46
chris 15:67dfa5550b73 47 int C12832_LCD::height()
chris 15:67dfa5550b73 48 {
chris 15:67dfa5550b73 49 if (orientation == 0 || orientation == 2) return 128;
chris 15:67dfa5550b73 50 else return 32;
chris 15:67dfa5550b73 51 }
chris 15:67dfa5550b73 52
chris 15:67dfa5550b73 53
chris 15:67dfa5550b73 54 /*void C12832_LCD::set_orientation(unsigned int o)
chris 15:67dfa5550b73 55 {
chris 15:67dfa5550b73 56 orientation = o;
chris 15:67dfa5550b73 57 switch (o) {
chris 15:67dfa5550b73 58 case (0):
chris 15:67dfa5550b73 59 wr_cmd(0xA0);
chris 15:67dfa5550b73 60 wr_cmd(0xC0);
chris 15:67dfa5550b73 61 break;
chris 15:67dfa5550b73 62 case (1):
chris 15:67dfa5550b73 63 wr_cmd(0xA0);
chris 15:67dfa5550b73 64 wr_cmd(0xC8);
chris 15:67dfa5550b73 65 break;
chris 15:67dfa5550b73 66 case (2):
chris 15:67dfa5550b73 67 wr_cmd(0xA1);
chris 15:67dfa5550b73 68 wr_cmd(0xC8);
chris 15:67dfa5550b73 69 break;
chris 15:67dfa5550b73 70 case (3):
chris 15:67dfa5550b73 71 wr_cmd(0xA1);
chris 15:67dfa5550b73 72 wr_cmd(0xC0);
chris 15:67dfa5550b73 73 break;
chris 15:67dfa5550b73 74 }
chris 15:67dfa5550b73 75 }
chris 15:67dfa5550b73 76
chris 15:67dfa5550b73 77 */
chris 15:67dfa5550b73 78
chris 15:67dfa5550b73 79 void C12832_LCD::invert(unsigned int o)
chris 15:67dfa5550b73 80 {
chris 15:67dfa5550b73 81 if(o == 0) wr_cmd(0xA6);
chris 15:67dfa5550b73 82 else wr_cmd(0xA7);
chris 15:67dfa5550b73 83 }
chris 15:67dfa5550b73 84
chris 15:67dfa5550b73 85
chris 15:67dfa5550b73 86 void C12832_LCD::set_contrast(unsigned int o)
chris 15:67dfa5550b73 87 {
chris 15:67dfa5550b73 88 contrast = o;
chris 15:67dfa5550b73 89 wr_cmd(0x81); // set volume
chris 15:67dfa5550b73 90 wr_cmd(o & 0x3F);
chris 15:67dfa5550b73 91 }
chris 15:67dfa5550b73 92
chris 15:67dfa5550b73 93 unsigned int C12832_LCD::get_contrast(void)
chris 15:67dfa5550b73 94 {
chris 15:67dfa5550b73 95 return(contrast);
chris 15:67dfa5550b73 96 }
chris 15:67dfa5550b73 97
chris 15:67dfa5550b73 98
chris 15:67dfa5550b73 99 // write command to lcd controller
chris 15:67dfa5550b73 100
chris 15:67dfa5550b73 101 void C12832_LCD::wr_cmd(unsigned char cmd)
chris 15:67dfa5550b73 102 {
chris 15:67dfa5550b73 103 _A0 = 0;
chris 15:67dfa5550b73 104 _CS = 0;
chris 15:67dfa5550b73 105 _spi.write(cmd);
chris 15:67dfa5550b73 106 _CS = 1;
chris 15:67dfa5550b73 107 }
chris 15:67dfa5550b73 108
chris 15:67dfa5550b73 109 // write data to lcd controller
chris 15:67dfa5550b73 110
chris 15:67dfa5550b73 111 void C12832_LCD::wr_dat(unsigned char dat)
chris 15:67dfa5550b73 112 {
chris 15:67dfa5550b73 113 _A0 = 1;
chris 15:67dfa5550b73 114 _CS = 0;
chris 15:67dfa5550b73 115 _spi.write(dat);
chris 15:67dfa5550b73 116 _CS = 1;
chris 15:67dfa5550b73 117 }
chris 15:67dfa5550b73 118
chris 15:67dfa5550b73 119 // reset and init the lcd controller
chris 15:67dfa5550b73 120
chris 15:67dfa5550b73 121 void C12832_LCD::lcd_reset()
chris 15:67dfa5550b73 122 {
chris 15:67dfa5550b73 123
chris 15:67dfa5550b73 124 _spi.format(8,3); // 8 bit spi mode 3
chris 15:67dfa5550b73 125 _spi.frequency(20000000); // 19,2 Mhz SPI clock
chris 15:67dfa5550b73 126 _A0 = 0;
chris 15:67dfa5550b73 127 _CS = 1;
chris 15:67dfa5550b73 128 _reset = 0; // display reset
chris 15:67dfa5550b73 129 wait_us(50);
chris 15:67dfa5550b73 130 _reset = 1; // end reset
chris 15:67dfa5550b73 131 wait_ms(5);
chris 15:67dfa5550b73 132
chris 15:67dfa5550b73 133 /* Start Initial Sequence ----------------------------------------------------*/
chris 15:67dfa5550b73 134
chris 15:67dfa5550b73 135 wr_cmd(0xAE); // display off
chris 15:67dfa5550b73 136 wr_cmd(0xA2); // bias voltage
chris 15:67dfa5550b73 137
chris 15:67dfa5550b73 138 wr_cmd(0xA0);
chris 15:67dfa5550b73 139 wr_cmd(0xC8); // colum normal
chris 15:67dfa5550b73 140
chris 15:67dfa5550b73 141 wr_cmd(0x22); // voltage resistor ratio
chris 15:67dfa5550b73 142 wr_cmd(0x2F); // power on
chris 15:67dfa5550b73 143 //wr_cmd(0xA4); // LCD display ram
chris 15:67dfa5550b73 144 wr_cmd(0x40); // start line = 0
chris 15:67dfa5550b73 145 wr_cmd(0xAF); // display ON
chris 15:67dfa5550b73 146
chris 15:67dfa5550b73 147 wr_cmd(0x81); // set contrast
chris 15:67dfa5550b73 148 wr_cmd(0x17); // set contrast
chris 15:67dfa5550b73 149
chris 15:67dfa5550b73 150 wr_cmd(0xA6); // display normal
chris 15:67dfa5550b73 151
chris 15:67dfa5550b73 152
chris 15:67dfa5550b73 153 // clear and update LCD
chris 15:67dfa5550b73 154 memset(buffer,0x00,512); // clear display buffer
chris 15:67dfa5550b73 155 copy_to_lcd();
chris 15:67dfa5550b73 156 auto_up = 1; // switch on auto update
chris 15:67dfa5550b73 157 // dont do this by default. Make the user call
chris 15:67dfa5550b73 158 //claim(stdout); // redirekt printf to lcd
chris 15:67dfa5550b73 159 locate(0,0);
chris 15:67dfa5550b73 160 set_font((unsigned char*)Small_7); // standart font
chris 15:67dfa5550b73 161 }
chris 15:67dfa5550b73 162
chris 15:67dfa5550b73 163 // set one pixel in buffer
chris 15:67dfa5550b73 164
chris 15:67dfa5550b73 165 void C12832_LCD::pixel(int x, int y, int color)
chris 15:67dfa5550b73 166 {
chris 15:67dfa5550b73 167 // first check parameter
chris 15:67dfa5550b73 168 if(x > 128 || y > 32 || x < 0 || y < 0) return;
chris 15:67dfa5550b73 169
chris 15:67dfa5550b73 170 if(draw_mode == NORMAL) {
chris 15:67dfa5550b73 171 if(color == 0)
chris 15:67dfa5550b73 172 buffer[x + ((y/8) * 128)] &= ~(1 << (y%8)); // erase pixel
chris 15:67dfa5550b73 173 else
chris 15:67dfa5550b73 174 buffer[x + ((y/8) * 128)] |= (1 << (y%8)); // set pixel
chris 15:67dfa5550b73 175 } else { // XOR mode
chris 15:67dfa5550b73 176 if(color == 1)
chris 15:67dfa5550b73 177 buffer[x + ((y/8) * 128)] ^= (1 << (y%8)); // xor pixel
chris 15:67dfa5550b73 178 }
chris 15:67dfa5550b73 179 }
chris 15:67dfa5550b73 180
chris 15:67dfa5550b73 181 // update lcd
chris 15:67dfa5550b73 182
chris 15:67dfa5550b73 183 void C12832_LCD::copy_to_lcd(void)
chris 15:67dfa5550b73 184 {
chris 15:67dfa5550b73 185
chris 15:67dfa5550b73 186 int i=0;
chris 15:67dfa5550b73 187
chris 15:67dfa5550b73 188 //page 0
chris 15:67dfa5550b73 189 wr_cmd(0x00); // set column low nibble 0
chris 15:67dfa5550b73 190 wr_cmd(0x10); // set column hi nibble 0
chris 15:67dfa5550b73 191 wr_cmd(0xB0); // set page address 0
chris 15:67dfa5550b73 192 _A0 = 1;
chris 15:67dfa5550b73 193 for(i=0; i<128; i++) {
chris 15:67dfa5550b73 194 wr_dat(buffer[i]);
chris 15:67dfa5550b73 195 }
chris 15:67dfa5550b73 196
chris 15:67dfa5550b73 197 // page 1
chris 15:67dfa5550b73 198 wr_cmd(0x00); // set column low nibble 0
chris 15:67dfa5550b73 199 wr_cmd(0x10); // set column hi nibble 0
chris 15:67dfa5550b73 200 wr_cmd(0xB1); // set page address 1
chris 15:67dfa5550b73 201 _A0 = 1;
chris 15:67dfa5550b73 202 for(i=128; i<256; i++) {
chris 15:67dfa5550b73 203 wr_dat(buffer[i]);
chris 15:67dfa5550b73 204 }
chris 15:67dfa5550b73 205
chris 15:67dfa5550b73 206 //page 2
chris 15:67dfa5550b73 207 wr_cmd(0x00); // set column low nibble 0
chris 15:67dfa5550b73 208 wr_cmd(0x10); // set column hi nibble 0
chris 15:67dfa5550b73 209 wr_cmd(0xB2); // set page address 2
chris 15:67dfa5550b73 210 _A0 = 1;
chris 15:67dfa5550b73 211 for(i=256; i<384; i++) {
chris 15:67dfa5550b73 212 wr_dat(buffer[i]);
chris 15:67dfa5550b73 213 }
chris 15:67dfa5550b73 214
chris 15:67dfa5550b73 215 //page 3
chris 15:67dfa5550b73 216 wr_cmd(0x00); // set column low nibble 0
chris 15:67dfa5550b73 217 wr_cmd(0x10); // set column hi nibble 0
chris 15:67dfa5550b73 218 wr_cmd(0xB3); // set page address 3
chris 15:67dfa5550b73 219 _A0 = 1;
chris 15:67dfa5550b73 220
chris 15:67dfa5550b73 221 _CS = 0;
chris 15:67dfa5550b73 222
chris 15:67dfa5550b73 223 for(i=384; i<512; i++) {
chris 15:67dfa5550b73 224 wr_dat(buffer[i]);
chris 15:67dfa5550b73 225 }
chris 15:67dfa5550b73 226
chris 15:67dfa5550b73 227 }
chris 15:67dfa5550b73 228
chris 15:67dfa5550b73 229 void C12832_LCD::cls(void)
chris 15:67dfa5550b73 230 {
chris 15:67dfa5550b73 231 memset(buffer,0x00,512); // clear display buffer
chris 15:67dfa5550b73 232 copy_to_lcd();
chris 15:67dfa5550b73 233 }
chris 15:67dfa5550b73 234
chris 15:67dfa5550b73 235
chris 15:67dfa5550b73 236 void C12832_LCD::line(int x0, int y0, int x1, int y1, int color)
chris 15:67dfa5550b73 237 {
chris 15:67dfa5550b73 238 int dx = 0, dy = 0;
chris 15:67dfa5550b73 239 int dx_sym = 0, dy_sym = 0;
chris 15:67dfa5550b73 240 int dx_x2 = 0, dy_x2 = 0;
chris 15:67dfa5550b73 241 int di = 0;
chris 15:67dfa5550b73 242
chris 15:67dfa5550b73 243 dx = x1-x0;
chris 15:67dfa5550b73 244 dy = y1-y0;
chris 15:67dfa5550b73 245
chris 15:67dfa5550b73 246 // if (dx == 0) { /* vertical line */
chris 15:67dfa5550b73 247 // if (y1 > y0) vline(x0,y0,y1,color);
chris 15:67dfa5550b73 248 // else vline(x0,y1,y0,color);
chris 15:67dfa5550b73 249 // return;
chris 15:67dfa5550b73 250 // }
chris 15:67dfa5550b73 251
chris 15:67dfa5550b73 252 if (dx > 0) {
chris 15:67dfa5550b73 253 dx_sym = 1;
chris 15:67dfa5550b73 254 } else {
chris 15:67dfa5550b73 255 dx_sym = -1;
chris 15:67dfa5550b73 256 }
chris 15:67dfa5550b73 257 // if (dy == 0) { /* horizontal line */
chris 15:67dfa5550b73 258 // if (x1 > x0) hline(x0,x1,y0,color);
chris 15:67dfa5550b73 259 // else hline(x1,x0,y0,color);
chris 15:67dfa5550b73 260 // return;
chris 15:67dfa5550b73 261 // }
chris 15:67dfa5550b73 262
chris 15:67dfa5550b73 263 if (dy > 0) {
chris 15:67dfa5550b73 264 dy_sym = 1;
chris 15:67dfa5550b73 265 } else {
chris 15:67dfa5550b73 266 dy_sym = -1;
chris 15:67dfa5550b73 267 }
chris 15:67dfa5550b73 268
chris 15:67dfa5550b73 269 dx = dx_sym*dx;
chris 15:67dfa5550b73 270 dy = dy_sym*dy;
chris 15:67dfa5550b73 271
chris 15:67dfa5550b73 272 dx_x2 = dx*2;
chris 15:67dfa5550b73 273 dy_x2 = dy*2;
chris 15:67dfa5550b73 274
chris 15:67dfa5550b73 275 if (dx >= dy) {
chris 15:67dfa5550b73 276 di = dy_x2 - dx;
chris 15:67dfa5550b73 277 while (x0 != x1) {
chris 15:67dfa5550b73 278
chris 15:67dfa5550b73 279 pixel(x0, y0, color);
chris 15:67dfa5550b73 280 x0 += dx_sym;
chris 15:67dfa5550b73 281 if (di<0) {
chris 15:67dfa5550b73 282 di += dy_x2;
chris 15:67dfa5550b73 283 } else {
chris 15:67dfa5550b73 284 di += dy_x2 - dx_x2;
chris 15:67dfa5550b73 285 y0 += dy_sym;
chris 15:67dfa5550b73 286 }
chris 15:67dfa5550b73 287 }
chris 15:67dfa5550b73 288 pixel(x0, y0, color);
chris 15:67dfa5550b73 289 } else {
chris 15:67dfa5550b73 290 di = dx_x2 - dy;
chris 15:67dfa5550b73 291 while (y0 != y1) {
chris 15:67dfa5550b73 292 pixel(x0, y0, color);
chris 15:67dfa5550b73 293 y0 += dy_sym;
chris 15:67dfa5550b73 294 if (di < 0) {
chris 15:67dfa5550b73 295 di += dx_x2;
chris 15:67dfa5550b73 296 } else {
chris 15:67dfa5550b73 297 di += dx_x2 - dy_x2;
chris 15:67dfa5550b73 298 x0 += dx_sym;
chris 15:67dfa5550b73 299 }
chris 15:67dfa5550b73 300 }
chris 15:67dfa5550b73 301 pixel(x0, y0, color);
chris 15:67dfa5550b73 302 }
chris 15:67dfa5550b73 303 if(auto_up) copy_to_lcd();
chris 15:67dfa5550b73 304 }
chris 15:67dfa5550b73 305
chris 15:67dfa5550b73 306 void C12832_LCD::rect(int x0, int y0, int x1, int y1, int color)
chris 15:67dfa5550b73 307 {
chris 15:67dfa5550b73 308
chris 15:67dfa5550b73 309 if (x1 > x0) line(x0,y0,x1,y0,color);
chris 15:67dfa5550b73 310 else line(x1,y0,x0,y0,color);
chris 15:67dfa5550b73 311
chris 15:67dfa5550b73 312 if (y1 > y0) line(x0,y0,x0,y1,color);
chris 15:67dfa5550b73 313 else line(x0,y1,x0,y0,color);
chris 15:67dfa5550b73 314
chris 15:67dfa5550b73 315 if (x1 > x0) line(x0,y1,x1,y1,color);
chris 15:67dfa5550b73 316 else line(x1,y1,x0,y1,color);
chris 15:67dfa5550b73 317
chris 15:67dfa5550b73 318 if (y1 > y0) line(x1,y0,x1,y1,color);
chris 15:67dfa5550b73 319 else line(x1,y1,x1,y0,color);
chris 15:67dfa5550b73 320
chris 15:67dfa5550b73 321 if(auto_up) copy_to_lcd();
chris 15:67dfa5550b73 322 }
chris 15:67dfa5550b73 323
chris 15:67dfa5550b73 324 void C12832_LCD::fillrect(int x0, int y0, int x1, int y1, int color)
chris 15:67dfa5550b73 325 {
chris 15:67dfa5550b73 326 int l,c,i;
chris 15:67dfa5550b73 327 if(x0 > x1) {
chris 15:67dfa5550b73 328 i = x0;
chris 15:67dfa5550b73 329 x0 = x1;
chris 15:67dfa5550b73 330 x1 = i;
chris 15:67dfa5550b73 331 }
chris 15:67dfa5550b73 332
chris 15:67dfa5550b73 333 if(y0 > y1) {
chris 15:67dfa5550b73 334 i = y0;
chris 15:67dfa5550b73 335 y0 = y1;
chris 15:67dfa5550b73 336 y1 = i;
chris 15:67dfa5550b73 337 }
chris 15:67dfa5550b73 338
chris 15:67dfa5550b73 339 for(l = x0; l<= x1; l ++) {
chris 15:67dfa5550b73 340 for(c = y0; c<= y1; c++) {
chris 15:67dfa5550b73 341 pixel(l,c,color);
chris 15:67dfa5550b73 342 }
chris 15:67dfa5550b73 343 }
chris 15:67dfa5550b73 344 if(auto_up) copy_to_lcd();
chris 15:67dfa5550b73 345 }
chris 15:67dfa5550b73 346
chris 15:67dfa5550b73 347
chris 15:67dfa5550b73 348
chris 15:67dfa5550b73 349 void C12832_LCD::circle(int x0, int y0, int r, int color)
chris 15:67dfa5550b73 350 {
chris 15:67dfa5550b73 351
chris 15:67dfa5550b73 352 int draw_x0, draw_y0;
chris 15:67dfa5550b73 353 int draw_x1, draw_y1;
chris 15:67dfa5550b73 354 int draw_x2, draw_y2;
chris 15:67dfa5550b73 355 int draw_x3, draw_y3;
chris 15:67dfa5550b73 356 int draw_x4, draw_y4;
chris 15:67dfa5550b73 357 int draw_x5, draw_y5;
chris 15:67dfa5550b73 358 int draw_x6, draw_y6;
chris 15:67dfa5550b73 359 int draw_x7, draw_y7;
chris 15:67dfa5550b73 360 int xx, yy;
chris 15:67dfa5550b73 361 int di;
chris 15:67dfa5550b73 362 //WindowMax();
chris 15:67dfa5550b73 363 if (r == 0) { /* no radius */
chris 15:67dfa5550b73 364 return;
chris 15:67dfa5550b73 365 }
chris 15:67dfa5550b73 366
chris 15:67dfa5550b73 367 draw_x0 = draw_x1 = x0;
chris 15:67dfa5550b73 368 draw_y0 = draw_y1 = y0 + r;
chris 15:67dfa5550b73 369 if (draw_y0 < height()) {
chris 15:67dfa5550b73 370 pixel(draw_x0, draw_y0, color); /* 90 degree */
chris 15:67dfa5550b73 371 }
chris 15:67dfa5550b73 372
chris 15:67dfa5550b73 373 draw_x2 = draw_x3 = x0;
chris 15:67dfa5550b73 374 draw_y2 = draw_y3 = y0 - r;
chris 15:67dfa5550b73 375 if (draw_y2 >= 0) {
chris 15:67dfa5550b73 376 pixel(draw_x2, draw_y2, color); /* 270 degree */
chris 15:67dfa5550b73 377 }
chris 15:67dfa5550b73 378
chris 15:67dfa5550b73 379 draw_x4 = draw_x6 = x0 + r;
chris 15:67dfa5550b73 380 draw_y4 = draw_y6 = y0;
chris 15:67dfa5550b73 381 if (draw_x4 < width()) {
chris 15:67dfa5550b73 382 pixel(draw_x4, draw_y4, color); /* 0 degree */
chris 15:67dfa5550b73 383 }
chris 15:67dfa5550b73 384
chris 15:67dfa5550b73 385 draw_x5 = draw_x7 = x0 - r;
chris 15:67dfa5550b73 386 draw_y5 = draw_y7 = y0;
chris 15:67dfa5550b73 387 if (draw_x5>=0) {
chris 15:67dfa5550b73 388 pixel(draw_x5, draw_y5, color); /* 180 degree */
chris 15:67dfa5550b73 389 }
chris 15:67dfa5550b73 390
chris 15:67dfa5550b73 391 if (r == 1) {
chris 15:67dfa5550b73 392 return;
chris 15:67dfa5550b73 393 }
chris 15:67dfa5550b73 394
chris 15:67dfa5550b73 395 di = 3 - 2*r;
chris 15:67dfa5550b73 396 xx = 0;
chris 15:67dfa5550b73 397 yy = r;
chris 15:67dfa5550b73 398 while (xx < yy) {
chris 15:67dfa5550b73 399
chris 15:67dfa5550b73 400 if (di < 0) {
chris 15:67dfa5550b73 401 di += 4*xx + 6;
chris 15:67dfa5550b73 402 } else {
chris 15:67dfa5550b73 403 di += 4*(xx - yy) + 10;
chris 15:67dfa5550b73 404 yy--;
chris 15:67dfa5550b73 405 draw_y0--;
chris 15:67dfa5550b73 406 draw_y1--;
chris 15:67dfa5550b73 407 draw_y2++;
chris 15:67dfa5550b73 408 draw_y3++;
chris 15:67dfa5550b73 409 draw_x4--;
chris 15:67dfa5550b73 410 draw_x5++;
chris 15:67dfa5550b73 411 draw_x6--;
chris 15:67dfa5550b73 412 draw_x7++;
chris 15:67dfa5550b73 413 }
chris 15:67dfa5550b73 414 xx++;
chris 15:67dfa5550b73 415 draw_x0++;
chris 15:67dfa5550b73 416 draw_x1--;
chris 15:67dfa5550b73 417 draw_x2++;
chris 15:67dfa5550b73 418 draw_x3--;
chris 15:67dfa5550b73 419 draw_y4++;
chris 15:67dfa5550b73 420 draw_y5++;
chris 15:67dfa5550b73 421 draw_y6--;
chris 15:67dfa5550b73 422 draw_y7--;
chris 15:67dfa5550b73 423
chris 15:67dfa5550b73 424 if ( (draw_x0 <= width()) && (draw_y0>=0) ) {
chris 15:67dfa5550b73 425 pixel(draw_x0, draw_y0, color);
chris 15:67dfa5550b73 426 }
chris 15:67dfa5550b73 427
chris 15:67dfa5550b73 428 if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) {
chris 15:67dfa5550b73 429 pixel(draw_x1, draw_y1, color);
chris 15:67dfa5550b73 430 }
chris 15:67dfa5550b73 431
chris 15:67dfa5550b73 432 if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) {
chris 15:67dfa5550b73 433 pixel(draw_x2, draw_y2, color);
chris 15:67dfa5550b73 434 }
chris 15:67dfa5550b73 435
chris 15:67dfa5550b73 436 if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) {
chris 15:67dfa5550b73 437 pixel(draw_x3, draw_y3, color);
chris 15:67dfa5550b73 438 }
chris 15:67dfa5550b73 439
chris 15:67dfa5550b73 440 if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) {
chris 15:67dfa5550b73 441 pixel(draw_x4, draw_y4, color);
chris 15:67dfa5550b73 442 }
chris 15:67dfa5550b73 443
chris 15:67dfa5550b73 444 if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) {
chris 15:67dfa5550b73 445 pixel(draw_x5, draw_y5, color);
chris 15:67dfa5550b73 446 }
chris 15:67dfa5550b73 447 if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) {
chris 15:67dfa5550b73 448 pixel(draw_x6, draw_y6, color);
chris 15:67dfa5550b73 449 }
chris 15:67dfa5550b73 450 if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) {
chris 15:67dfa5550b73 451 pixel(draw_x7, draw_y7, color);
chris 15:67dfa5550b73 452 }
chris 15:67dfa5550b73 453 }
chris 15:67dfa5550b73 454 if(auto_up) copy_to_lcd();
chris 15:67dfa5550b73 455 }
chris 15:67dfa5550b73 456
chris 15:67dfa5550b73 457 void C12832_LCD::fillcircle(int x, int y, int r, int color)
chris 15:67dfa5550b73 458 {
chris 15:67dfa5550b73 459 int i,up;
chris 15:67dfa5550b73 460 up = auto_up;
chris 15:67dfa5550b73 461 auto_up = 0; // off
chris 15:67dfa5550b73 462 for (i = 0; i <= r; i++)
chris 15:67dfa5550b73 463 circle(x,y,i,color);
chris 15:67dfa5550b73 464 auto_up = up;
chris 15:67dfa5550b73 465 if(auto_up) copy_to_lcd();
chris 15:67dfa5550b73 466 }
chris 15:67dfa5550b73 467
chris 15:67dfa5550b73 468 void C12832_LCD::setmode(int mode)
chris 15:67dfa5550b73 469 {
chris 15:67dfa5550b73 470 draw_mode = mode;
chris 15:67dfa5550b73 471 }
chris 15:67dfa5550b73 472
chris 15:67dfa5550b73 473 void C12832_LCD::locate(int x, int y)
chris 15:67dfa5550b73 474 {
chris 15:67dfa5550b73 475 char_x = x;
chris 15:67dfa5550b73 476 char_y = y;
chris 15:67dfa5550b73 477 }
chris 15:67dfa5550b73 478
chris 15:67dfa5550b73 479
chris 15:67dfa5550b73 480
chris 15:67dfa5550b73 481 int C12832_LCD::columns()
chris 15:67dfa5550b73 482 {
chris 15:67dfa5550b73 483 return width() / font[1];
chris 15:67dfa5550b73 484 }
chris 15:67dfa5550b73 485
chris 15:67dfa5550b73 486
chris 15:67dfa5550b73 487
chris 15:67dfa5550b73 488 int C12832_LCD::rows()
chris 15:67dfa5550b73 489 {
chris 15:67dfa5550b73 490 return height() / font[2];
chris 15:67dfa5550b73 491 }
chris 15:67dfa5550b73 492
chris 15:67dfa5550b73 493
chris 15:67dfa5550b73 494
chris 15:67dfa5550b73 495 int C12832_LCD::_putc(int value)
chris 15:67dfa5550b73 496 {
chris 15:67dfa5550b73 497 if (value == '\n') { // new line
chris 15:67dfa5550b73 498 char_x = 0;
chris 15:67dfa5550b73 499 char_y = char_y + font[2];
chris 15:67dfa5550b73 500 if (char_y >= height() - font[2]) {
chris 15:67dfa5550b73 501 char_y = 0;
chris 15:67dfa5550b73 502 }
chris 15:67dfa5550b73 503 } else {
chris 15:67dfa5550b73 504 character(char_x, char_y, value);
chris 15:67dfa5550b73 505 if(auto_up) copy_to_lcd();
chris 15:67dfa5550b73 506 }
chris 15:67dfa5550b73 507 return value;
chris 15:67dfa5550b73 508 }
chris 15:67dfa5550b73 509
chris 15:67dfa5550b73 510 void C12832_LCD::character(int x, int y, int c)
chris 15:67dfa5550b73 511 {
chris 15:67dfa5550b73 512 unsigned int hor,vert,offset,bpl,j,i,b;
chris 15:67dfa5550b73 513 unsigned char* zeichen;
chris 15:67dfa5550b73 514 unsigned char z,w;
chris 15:67dfa5550b73 515
chris 15:67dfa5550b73 516 if ((c < 31) || (c > 127)) return; // test char range
chris 15:67dfa5550b73 517
chris 15:67dfa5550b73 518 // read font parameter from start of array
chris 15:67dfa5550b73 519 offset = font[0]; // bytes / char
chris 15:67dfa5550b73 520 hor = font[1]; // get hor size of font
chris 15:67dfa5550b73 521 vert = font[2]; // get vert size of font
chris 15:67dfa5550b73 522 bpl = font[3]; // bytes per line
chris 15:67dfa5550b73 523
chris 15:67dfa5550b73 524 if (char_x + hor > width()) {
chris 15:67dfa5550b73 525 char_x = 0;
chris 15:67dfa5550b73 526 char_y = char_y + vert;
chris 15:67dfa5550b73 527 if (char_y >= height() - font[2]) {
chris 15:67dfa5550b73 528 char_y = 0;
chris 15:67dfa5550b73 529 }
chris 15:67dfa5550b73 530 }
chris 15:67dfa5550b73 531
chris 15:67dfa5550b73 532 zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
chris 15:67dfa5550b73 533 w = zeichen[0]; // width of actual char
chris 15:67dfa5550b73 534 // construct the char into the buffer
chris 15:67dfa5550b73 535 for (j=0; j<vert; j++) { // vert line
chris 15:67dfa5550b73 536 for (i=0; i<hor; i++) { // horz line
chris 15:67dfa5550b73 537 z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
chris 15:67dfa5550b73 538 b = 1 << (j & 0x07);
chris 15:67dfa5550b73 539 if (( z & b ) == 0x00) {
chris 15:67dfa5550b73 540 pixel(x+i,y+j,0);
chris 15:67dfa5550b73 541 } else {
chris 15:67dfa5550b73 542 pixel(x+i,y+j,1);
chris 15:67dfa5550b73 543 }
chris 15:67dfa5550b73 544
chris 15:67dfa5550b73 545 }
chris 15:67dfa5550b73 546 }
chris 15:67dfa5550b73 547
chris 15:67dfa5550b73 548 char_x += w;
chris 15:67dfa5550b73 549 }
chris 15:67dfa5550b73 550
chris 15:67dfa5550b73 551
chris 15:67dfa5550b73 552 void C12832_LCD::set_font(unsigned char* f)
chris 15:67dfa5550b73 553 {
chris 15:67dfa5550b73 554 font = f;
chris 15:67dfa5550b73 555 }
chris 15:67dfa5550b73 556
chris 15:67dfa5550b73 557 void C12832_LCD::set_auto_up(unsigned int up)
chris 15:67dfa5550b73 558 {
chris 15:67dfa5550b73 559 if(up ) auto_up = 1;
chris 15:67dfa5550b73 560 else auto_up = 0;
chris 15:67dfa5550b73 561 }
chris 15:67dfa5550b73 562
chris 15:67dfa5550b73 563 unsigned int C12832_LCD::get_auto_up(void)
chris 15:67dfa5550b73 564 {
chris 15:67dfa5550b73 565 return (auto_up);
chris 15:67dfa5550b73 566 }
chris 15:67dfa5550b73 567
chris 15:67dfa5550b73 568 void C12832_LCD::print_bm(Bitmap bm, int x, int y)
chris 15:67dfa5550b73 569 {
chris 15:67dfa5550b73 570 int h,v,b;
chris 15:67dfa5550b73 571 char d;
chris 15:67dfa5550b73 572
chris 15:67dfa5550b73 573 for(v=0; v < bm.ySize; v++) { // lines
chris 15:67dfa5550b73 574 for(h=0; h < bm.xSize; h++) { // pixel
chris 15:67dfa5550b73 575 if(h + x > 127) break;
chris 15:67dfa5550b73 576 if(v + y > 31) break;
chris 15:67dfa5550b73 577 d = bm.data[bm.Byte_in_Line * v + ((h & 0xF8) >> 3)];
chris 15:67dfa5550b73 578 b = 0x80 >> (h & 0x07);
chris 15:67dfa5550b73 579 if((d & b) == 0) {
chris 15:67dfa5550b73 580 pixel(x+h,y+v,0);
chris 15:67dfa5550b73 581 } else {
chris 15:67dfa5550b73 582 pixel(x+h,y+v,1);
chris 15:67dfa5550b73 583 }
chris 15:67dfa5550b73 584 }
chris 15:67dfa5550b73 585 }
chris 15:67dfa5550b73 586
chris 15:67dfa5550b73 587 }
chris 15:67dfa5550b73 588
chris 15:67dfa5550b73 589