Pierre DELVOYE / C12832_lcd

Lib for the LCD display on mbed lab Board

Fork of C12832_lcd by Peter Drescher

C12832.cpp@11:6dd427fccfc6, 2016-05-07 (annotated)

Committer:
co838_pld9
Date:
Sat May 07 17:43:42 2016 +0000
Revision:
11:6dd427fccfc6
LCD library;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
co838_pld9 11:6dd427fccfc6 1 /* mbed library for the mbed Lab Board 128*32 pixel LCD
co838_pld9 11:6dd427fccfc6 2 * use C12832 controller
co838_pld9 11:6dd427fccfc6 3 * Copyright (c) 2012 Peter Drescher - DC2PD
co838_pld9 11:6dd427fccfc6 4 * Released under the MIT License: http://mbed.org/license/mit
co838_pld9 11:6dd427fccfc6 5 *
co838_pld9 11:6dd427fccfc6 6 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
co838_pld9 11:6dd427fccfc6 7 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
co838_pld9 11:6dd427fccfc6 8 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
co838_pld9 11:6dd427fccfc6 9 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
co838_pld9 11:6dd427fccfc6 10 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
co838_pld9 11:6dd427fccfc6 11 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
co838_pld9 11:6dd427fccfc6 12 * THE SOFTWARE.
co838_pld9 11:6dd427fccfc6 13 */
co838_pld9 11:6dd427fccfc6 14
co838_pld9 11:6dd427fccfc6 15 // 13.10.12 initial design
co838_pld9 11:6dd427fccfc6 16 // 25.10.12 add autorefresh of screen
co838_pld9 11:6dd427fccfc6 17 // 25.10.12 add standart font
co838_pld9 11:6dd427fccfc6 18 // 20.12.12 add bitmap graphics
co838_pld9 11:6dd427fccfc6 19
co838_pld9 11:6dd427fccfc6 20 // optional defines :
co838_pld9 11:6dd427fccfc6 21 // #define debug_lcd 1
co838_pld9 11:6dd427fccfc6 22
co838_pld9 11:6dd427fccfc6 23 #include "C12832.h"
co838_pld9 11:6dd427fccfc6 24 #include "mbed.h"
co838_pld9 11:6dd427fccfc6 25 #include "stdio.h"
co838_pld9 11:6dd427fccfc6 26 #include "Small_7.h"
co838_pld9 11:6dd427fccfc6 27
co838_pld9 11:6dd427fccfc6 28 #define BPP 1 // Bits per pixel
co838_pld9 11:6dd427fccfc6 29
co838_pld9 11:6dd427fccfc6 30
co838_pld9 11:6dd427fccfc6 31 C12832::C12832(PinName mosi, PinName sck, PinName reset, PinName a0, PinName ncs, const char* name)
co838_pld9 11:6dd427fccfc6 32 : _spi(mosi,NC,sck),_reset(reset),_A0(a0),_CS(ncs),GraphicsDisplay(name)
co838_pld9 11:6dd427fccfc6 33 {
co838_pld9 11:6dd427fccfc6 34 orientation = 1;
co838_pld9 11:6dd427fccfc6 35 draw_mode = NORMAL;
co838_pld9 11:6dd427fccfc6 36 char_x = 0;
co838_pld9 11:6dd427fccfc6 37 lcd_reset();
co838_pld9 11:6dd427fccfc6 38 }
co838_pld9 11:6dd427fccfc6 39
co838_pld9 11:6dd427fccfc6 40
co838_pld9 11:6dd427fccfc6 41 int C12832::width()
co838_pld9 11:6dd427fccfc6 42 {
co838_pld9 11:6dd427fccfc6 43 if (orientation == 0 || orientation == 2) return 32;
co838_pld9 11:6dd427fccfc6 44 else return 128;
co838_pld9 11:6dd427fccfc6 45 }
co838_pld9 11:6dd427fccfc6 46
co838_pld9 11:6dd427fccfc6 47 int C12832::height()
co838_pld9 11:6dd427fccfc6 48 {
co838_pld9 11:6dd427fccfc6 49 if (orientation == 0 || orientation == 2) return 128;
co838_pld9 11:6dd427fccfc6 50 else return 32;
co838_pld9 11:6dd427fccfc6 51 }
co838_pld9 11:6dd427fccfc6 52
co838_pld9 11:6dd427fccfc6 53
co838_pld9 11:6dd427fccfc6 54 void C12832::invert(unsigned int o)
co838_pld9 11:6dd427fccfc6 55 {
co838_pld9 11:6dd427fccfc6 56 if(o == 0) wr_cmd(0xA6);
co838_pld9 11:6dd427fccfc6 57 else wr_cmd(0xA7);
co838_pld9 11:6dd427fccfc6 58 }
co838_pld9 11:6dd427fccfc6 59
co838_pld9 11:6dd427fccfc6 60
co838_pld9 11:6dd427fccfc6 61 void C12832::set_contrast(unsigned int o)
co838_pld9 11:6dd427fccfc6 62 {
co838_pld9 11:6dd427fccfc6 63 contrast = o;
co838_pld9 11:6dd427fccfc6 64 wr_cmd(0x81); // set volume
co838_pld9 11:6dd427fccfc6 65 wr_cmd(o & 0x3F);
co838_pld9 11:6dd427fccfc6 66 }
co838_pld9 11:6dd427fccfc6 67
co838_pld9 11:6dd427fccfc6 68 unsigned int C12832::get_contrast(void)
co838_pld9 11:6dd427fccfc6 69 {
co838_pld9 11:6dd427fccfc6 70 return(contrast);
co838_pld9 11:6dd427fccfc6 71 }
co838_pld9 11:6dd427fccfc6 72
co838_pld9 11:6dd427fccfc6 73
co838_pld9 11:6dd427fccfc6 74 // write command to lcd controller
co838_pld9 11:6dd427fccfc6 75
co838_pld9 11:6dd427fccfc6 76 void C12832::wr_cmd(unsigned char cmd)
co838_pld9 11:6dd427fccfc6 77 {
co838_pld9 11:6dd427fccfc6 78 _A0 = 0;
co838_pld9 11:6dd427fccfc6 79 _CS = 0;
co838_pld9 11:6dd427fccfc6 80 _spi.write(cmd);
co838_pld9 11:6dd427fccfc6 81 _CS = 1;
co838_pld9 11:6dd427fccfc6 82 }
co838_pld9 11:6dd427fccfc6 83
co838_pld9 11:6dd427fccfc6 84 // write data to lcd controller
co838_pld9 11:6dd427fccfc6 85
co838_pld9 11:6dd427fccfc6 86 void C12832::wr_dat(unsigned char dat)
co838_pld9 11:6dd427fccfc6 87 {
co838_pld9 11:6dd427fccfc6 88 _A0 = 1;
co838_pld9 11:6dd427fccfc6 89 _CS = 0;
co838_pld9 11:6dd427fccfc6 90 _spi.write(dat);
co838_pld9 11:6dd427fccfc6 91 _CS = 1;
co838_pld9 11:6dd427fccfc6 92 }
co838_pld9 11:6dd427fccfc6 93
co838_pld9 11:6dd427fccfc6 94 // reset and init the lcd controller
co838_pld9 11:6dd427fccfc6 95
co838_pld9 11:6dd427fccfc6 96 void C12832::lcd_reset()
co838_pld9 11:6dd427fccfc6 97 {
co838_pld9 11:6dd427fccfc6 98
co838_pld9 11:6dd427fccfc6 99 _spi.format(8,3); // 8 bit spi mode 3
co838_pld9 11:6dd427fccfc6 100 _spi.frequency(20000000); // 19,2 Mhz SPI clock
co838_pld9 11:6dd427fccfc6 101 _A0 = 0;
co838_pld9 11:6dd427fccfc6 102 _CS = 1;
co838_pld9 11:6dd427fccfc6 103 _reset = 0; // display reset
co838_pld9 11:6dd427fccfc6 104 wait_us(50);
co838_pld9 11:6dd427fccfc6 105 _reset = 1; // end reset
co838_pld9 11:6dd427fccfc6 106 wait_ms(5);
co838_pld9 11:6dd427fccfc6 107
co838_pld9 11:6dd427fccfc6 108 /* Start Initial Sequence ----------------------------------------------------*/
co838_pld9 11:6dd427fccfc6 109
co838_pld9 11:6dd427fccfc6 110 wr_cmd(0xAE); // display off
co838_pld9 11:6dd427fccfc6 111 wr_cmd(0xA2); // bias voltage
co838_pld9 11:6dd427fccfc6 112
co838_pld9 11:6dd427fccfc6 113 wr_cmd(0xA0);
co838_pld9 11:6dd427fccfc6 114 wr_cmd(0xC8); // colum normal
co838_pld9 11:6dd427fccfc6 115
co838_pld9 11:6dd427fccfc6 116 wr_cmd(0x22); // voltage resistor ratio
co838_pld9 11:6dd427fccfc6 117 wr_cmd(0x2F); // power on
co838_pld9 11:6dd427fccfc6 118 //wr_cmd(0xA4); // LCD display ram
co838_pld9 11:6dd427fccfc6 119 wr_cmd(0x40); // start line = 0
co838_pld9 11:6dd427fccfc6 120 wr_cmd(0xAF); // display ON
co838_pld9 11:6dd427fccfc6 121
co838_pld9 11:6dd427fccfc6 122 wr_cmd(0x81); // set contrast
co838_pld9 11:6dd427fccfc6 123 wr_cmd(0x17); // set contrast
co838_pld9 11:6dd427fccfc6 124
co838_pld9 11:6dd427fccfc6 125 wr_cmd(0xA6); // display normal
co838_pld9 11:6dd427fccfc6 126
co838_pld9 11:6dd427fccfc6 127
co838_pld9 11:6dd427fccfc6 128 // clear and update LCD
co838_pld9 11:6dd427fccfc6 129 memset(buffer,0x00,512); // clear display buffer
co838_pld9 11:6dd427fccfc6 130 copy_to_lcd();
co838_pld9 11:6dd427fccfc6 131 auto_up = 1; // switch on auto update
co838_pld9 11:6dd427fccfc6 132 // dont do this by default. Make the user call
co838_pld9 11:6dd427fccfc6 133 //claim(stdout); // redirekt printf to lcd
co838_pld9 11:6dd427fccfc6 134 locate(0,0);
co838_pld9 11:6dd427fccfc6 135 set_font((unsigned char*)Small_7); // standart font
co838_pld9 11:6dd427fccfc6 136 }
co838_pld9 11:6dd427fccfc6 137
co838_pld9 11:6dd427fccfc6 138 // set one pixel in buffer
co838_pld9 11:6dd427fccfc6 139
co838_pld9 11:6dd427fccfc6 140 void C12832::pixel(int x, int y, int color)
co838_pld9 11:6dd427fccfc6 141 {
co838_pld9 11:6dd427fccfc6 142 // first check parameter
co838_pld9 11:6dd427fccfc6 143 if(x > 128 || y > 32 || x < 0 || y < 0) return;
co838_pld9 11:6dd427fccfc6 144
co838_pld9 11:6dd427fccfc6 145 if(draw_mode == NORMAL) {
co838_pld9 11:6dd427fccfc6 146 if(color == 0)
co838_pld9 11:6dd427fccfc6 147 buffer[x + ((y/8) * 128)] &= ~(1 << (y%8)); // erase pixel
co838_pld9 11:6dd427fccfc6 148 else
co838_pld9 11:6dd427fccfc6 149 buffer[x + ((y/8) * 128)] |= (1 << (y%8)); // set pixel
co838_pld9 11:6dd427fccfc6 150 } else { // XOR mode
co838_pld9 11:6dd427fccfc6 151 if(color == 1)
co838_pld9 11:6dd427fccfc6 152 buffer[x + ((y/8) * 128)] ^= (1 << (y%8)); // xor pixel
co838_pld9 11:6dd427fccfc6 153 }
co838_pld9 11:6dd427fccfc6 154 }
co838_pld9 11:6dd427fccfc6 155
co838_pld9 11:6dd427fccfc6 156 // update lcd
co838_pld9 11:6dd427fccfc6 157
co838_pld9 11:6dd427fccfc6 158 void C12832::copy_to_lcd(void)
co838_pld9 11:6dd427fccfc6 159 {
co838_pld9 11:6dd427fccfc6 160
co838_pld9 11:6dd427fccfc6 161 int i=0;
co838_pld9 11:6dd427fccfc6 162
co838_pld9 11:6dd427fccfc6 163 //page 0
co838_pld9 11:6dd427fccfc6 164 wr_cmd(0x00); // set column low nibble 0
co838_pld9 11:6dd427fccfc6 165 wr_cmd(0x10); // set column hi nibble 0
co838_pld9 11:6dd427fccfc6 166 wr_cmd(0xB0); // set page address 0
co838_pld9 11:6dd427fccfc6 167 _A0 = 1;
co838_pld9 11:6dd427fccfc6 168 for(i=0; i<128; i++) {
co838_pld9 11:6dd427fccfc6 169 wr_dat(buffer[i]);
co838_pld9 11:6dd427fccfc6 170 }
co838_pld9 11:6dd427fccfc6 171
co838_pld9 11:6dd427fccfc6 172 // page 1
co838_pld9 11:6dd427fccfc6 173 wr_cmd(0x00); // set column low nibble 0
co838_pld9 11:6dd427fccfc6 174 wr_cmd(0x10); // set column hi nibble 0
co838_pld9 11:6dd427fccfc6 175 wr_cmd(0xB1); // set page address 1
co838_pld9 11:6dd427fccfc6 176 _A0 = 1;
co838_pld9 11:6dd427fccfc6 177 for(i=128; i<256; i++) {
co838_pld9 11:6dd427fccfc6 178 wr_dat(buffer[i]);
co838_pld9 11:6dd427fccfc6 179 }
co838_pld9 11:6dd427fccfc6 180
co838_pld9 11:6dd427fccfc6 181 //page 2
co838_pld9 11:6dd427fccfc6 182 wr_cmd(0x00); // set column low nibble 0
co838_pld9 11:6dd427fccfc6 183 wr_cmd(0x10); // set column hi nibble 0
co838_pld9 11:6dd427fccfc6 184 wr_cmd(0xB2); // set page address 2
co838_pld9 11:6dd427fccfc6 185 _A0 = 1;
co838_pld9 11:6dd427fccfc6 186 for(i=256; i<384; i++) {
co838_pld9 11:6dd427fccfc6 187 wr_dat(buffer[i]);
co838_pld9 11:6dd427fccfc6 188 }
co838_pld9 11:6dd427fccfc6 189
co838_pld9 11:6dd427fccfc6 190 //page 3
co838_pld9 11:6dd427fccfc6 191 wr_cmd(0x00); // set column low nibble 0
co838_pld9 11:6dd427fccfc6 192 wr_cmd(0x10); // set column hi nibble 0
co838_pld9 11:6dd427fccfc6 193 wr_cmd(0xB3); // set page address 3
co838_pld9 11:6dd427fccfc6 194 _A0 = 1;
co838_pld9 11:6dd427fccfc6 195
co838_pld9 11:6dd427fccfc6 196 _CS = 0;
co838_pld9 11:6dd427fccfc6 197
co838_pld9 11:6dd427fccfc6 198 for(i=384; i<512; i++) {
co838_pld9 11:6dd427fccfc6 199 wr_dat(buffer[i]);
co838_pld9 11:6dd427fccfc6 200 }
co838_pld9 11:6dd427fccfc6 201
co838_pld9 11:6dd427fccfc6 202 }
co838_pld9 11:6dd427fccfc6 203
co838_pld9 11:6dd427fccfc6 204 void C12832::cls(void)
co838_pld9 11:6dd427fccfc6 205 {
co838_pld9 11:6dd427fccfc6 206 memset(buffer,0x00,512); // clear display buffer
co838_pld9 11:6dd427fccfc6 207 copy_to_lcd();
co838_pld9 11:6dd427fccfc6 208 }
co838_pld9 11:6dd427fccfc6 209
co838_pld9 11:6dd427fccfc6 210
co838_pld9 11:6dd427fccfc6 211 void C12832::line(int x0, int y0, int x1, int y1, int color)
co838_pld9 11:6dd427fccfc6 212 {
co838_pld9 11:6dd427fccfc6 213 int dx = 0, dy = 0;
co838_pld9 11:6dd427fccfc6 214 int dx_sym = 0, dy_sym = 0;
co838_pld9 11:6dd427fccfc6 215 int dx_x2 = 0, dy_x2 = 0;
co838_pld9 11:6dd427fccfc6 216 int di = 0;
co838_pld9 11:6dd427fccfc6 217
co838_pld9 11:6dd427fccfc6 218 dx = x1-x0;
co838_pld9 11:6dd427fccfc6 219 dy = y1-y0;
co838_pld9 11:6dd427fccfc6 220
co838_pld9 11:6dd427fccfc6 221 // if (dx == 0) { /* vertical line */
co838_pld9 11:6dd427fccfc6 222 // if (y1 > y0) vline(x0,y0,y1,color);
co838_pld9 11:6dd427fccfc6 223 // else vline(x0,y1,y0,color);
co838_pld9 11:6dd427fccfc6 224 // return;
co838_pld9 11:6dd427fccfc6 225 // }
co838_pld9 11:6dd427fccfc6 226
co838_pld9 11:6dd427fccfc6 227 if (dx > 0) {
co838_pld9 11:6dd427fccfc6 228 dx_sym = 1;
co838_pld9 11:6dd427fccfc6 229 } else {
co838_pld9 11:6dd427fccfc6 230 dx_sym = -1;
co838_pld9 11:6dd427fccfc6 231 }
co838_pld9 11:6dd427fccfc6 232 // if (dy == 0) { /* horizontal line */
co838_pld9 11:6dd427fccfc6 233 // if (x1 > x0) hline(x0,x1,y0,color);
co838_pld9 11:6dd427fccfc6 234 // else hline(x1,x0,y0,color);
co838_pld9 11:6dd427fccfc6 235 // return;
co838_pld9 11:6dd427fccfc6 236 // }
co838_pld9 11:6dd427fccfc6 237
co838_pld9 11:6dd427fccfc6 238 if (dy > 0) {
co838_pld9 11:6dd427fccfc6 239 dy_sym = 1;
co838_pld9 11:6dd427fccfc6 240 } else {
co838_pld9 11:6dd427fccfc6 241 dy_sym = -1;
co838_pld9 11:6dd427fccfc6 242 }
co838_pld9 11:6dd427fccfc6 243
co838_pld9 11:6dd427fccfc6 244 dx = dx_sym*dx;
co838_pld9 11:6dd427fccfc6 245 dy = dy_sym*dy;
co838_pld9 11:6dd427fccfc6 246
co838_pld9 11:6dd427fccfc6 247 dx_x2 = dx*2;
co838_pld9 11:6dd427fccfc6 248 dy_x2 = dy*2;
co838_pld9 11:6dd427fccfc6 249
co838_pld9 11:6dd427fccfc6 250 if (dx >= dy) {
co838_pld9 11:6dd427fccfc6 251 di = dy_x2 - dx;
co838_pld9 11:6dd427fccfc6 252 while (x0 != x1) {
co838_pld9 11:6dd427fccfc6 253
co838_pld9 11:6dd427fccfc6 254 pixel(x0, y0, color);
co838_pld9 11:6dd427fccfc6 255 x0 += dx_sym;
co838_pld9 11:6dd427fccfc6 256 if (di<0) {
co838_pld9 11:6dd427fccfc6 257 di += dy_x2;
co838_pld9 11:6dd427fccfc6 258 } else {
co838_pld9 11:6dd427fccfc6 259 di += dy_x2 - dx_x2;
co838_pld9 11:6dd427fccfc6 260 y0 += dy_sym;
co838_pld9 11:6dd427fccfc6 261 }
co838_pld9 11:6dd427fccfc6 262 }
co838_pld9 11:6dd427fccfc6 263 pixel(x0, y0, color);
co838_pld9 11:6dd427fccfc6 264 } else {
co838_pld9 11:6dd427fccfc6 265 di = dx_x2 - dy;
co838_pld9 11:6dd427fccfc6 266 while (y0 != y1) {
co838_pld9 11:6dd427fccfc6 267 pixel(x0, y0, color);
co838_pld9 11:6dd427fccfc6 268 y0 += dy_sym;
co838_pld9 11:6dd427fccfc6 269 if (di < 0) {
co838_pld9 11:6dd427fccfc6 270 di += dx_x2;
co838_pld9 11:6dd427fccfc6 271 } else {
co838_pld9 11:6dd427fccfc6 272 di += dx_x2 - dy_x2;
co838_pld9 11:6dd427fccfc6 273 x0 += dx_sym;
co838_pld9 11:6dd427fccfc6 274 }
co838_pld9 11:6dd427fccfc6 275 }
co838_pld9 11:6dd427fccfc6 276 pixel(x0, y0, color);
co838_pld9 11:6dd427fccfc6 277 }
co838_pld9 11:6dd427fccfc6 278 if(auto_up) copy_to_lcd();
co838_pld9 11:6dd427fccfc6 279 }
co838_pld9 11:6dd427fccfc6 280
co838_pld9 11:6dd427fccfc6 281 void C12832::rect(int x0, int y0, int x1, int y1, int color)
co838_pld9 11:6dd427fccfc6 282 {
co838_pld9 11:6dd427fccfc6 283
co838_pld9 11:6dd427fccfc6 284 if (x1 > x0) line(x0,y0,x1,y0,color);
co838_pld9 11:6dd427fccfc6 285 else line(x1,y0,x0,y0,color);
co838_pld9 11:6dd427fccfc6 286
co838_pld9 11:6dd427fccfc6 287 if (y1 > y0) line(x0,y0,x0,y1,color);
co838_pld9 11:6dd427fccfc6 288 else line(x0,y1,x0,y0,color);
co838_pld9 11:6dd427fccfc6 289
co838_pld9 11:6dd427fccfc6 290 if (x1 > x0) line(x0,y1,x1,y1,color);
co838_pld9 11:6dd427fccfc6 291 else line(x1,y1,x0,y1,color);
co838_pld9 11:6dd427fccfc6 292
co838_pld9 11:6dd427fccfc6 293 if (y1 > y0) line(x1,y0,x1,y1,color);
co838_pld9 11:6dd427fccfc6 294 else line(x1,y1,x1,y0,color);
co838_pld9 11:6dd427fccfc6 295
co838_pld9 11:6dd427fccfc6 296 if(auto_up) copy_to_lcd();
co838_pld9 11:6dd427fccfc6 297 }
co838_pld9 11:6dd427fccfc6 298
co838_pld9 11:6dd427fccfc6 299 void C12832::fillrect(int x0, int y0, int x1, int y1, int color)
co838_pld9 11:6dd427fccfc6 300 {
co838_pld9 11:6dd427fccfc6 301 int l,c,i;
co838_pld9 11:6dd427fccfc6 302 if(x0 > x1) {
co838_pld9 11:6dd427fccfc6 303 i = x0;
co838_pld9 11:6dd427fccfc6 304 x0 = x1;
co838_pld9 11:6dd427fccfc6 305 x1 = i;
co838_pld9 11:6dd427fccfc6 306 }
co838_pld9 11:6dd427fccfc6 307
co838_pld9 11:6dd427fccfc6 308 if(y0 > y1) {
co838_pld9 11:6dd427fccfc6 309 i = y0;
co838_pld9 11:6dd427fccfc6 310 y0 = y1;
co838_pld9 11:6dd427fccfc6 311 y1 = i;
co838_pld9 11:6dd427fccfc6 312 }
co838_pld9 11:6dd427fccfc6 313
co838_pld9 11:6dd427fccfc6 314 for(l = x0; l<= x1; l ++) {
co838_pld9 11:6dd427fccfc6 315 for(c = y0; c<= y1; c++) {
co838_pld9 11:6dd427fccfc6 316 pixel(l,c,color);
co838_pld9 11:6dd427fccfc6 317 }
co838_pld9 11:6dd427fccfc6 318 }
co838_pld9 11:6dd427fccfc6 319 if(auto_up) copy_to_lcd();
co838_pld9 11:6dd427fccfc6 320 }
co838_pld9 11:6dd427fccfc6 321
co838_pld9 11:6dd427fccfc6 322
co838_pld9 11:6dd427fccfc6 323
co838_pld9 11:6dd427fccfc6 324 void C12832::circle(int x0, int y0, int r, int color)
co838_pld9 11:6dd427fccfc6 325 {
co838_pld9 11:6dd427fccfc6 326
co838_pld9 11:6dd427fccfc6 327 int draw_x0, draw_y0;
co838_pld9 11:6dd427fccfc6 328 int draw_x1, draw_y1;
co838_pld9 11:6dd427fccfc6 329 int draw_x2, draw_y2;
co838_pld9 11:6dd427fccfc6 330 int draw_x3, draw_y3;
co838_pld9 11:6dd427fccfc6 331 int draw_x4, draw_y4;
co838_pld9 11:6dd427fccfc6 332 int draw_x5, draw_y5;
co838_pld9 11:6dd427fccfc6 333 int draw_x6, draw_y6;
co838_pld9 11:6dd427fccfc6 334 int draw_x7, draw_y7;
co838_pld9 11:6dd427fccfc6 335 int xx, yy;
co838_pld9 11:6dd427fccfc6 336 int di;
co838_pld9 11:6dd427fccfc6 337 //WindowMax();
co838_pld9 11:6dd427fccfc6 338 if (r == 0) { /* no radius */
co838_pld9 11:6dd427fccfc6 339 return;
co838_pld9 11:6dd427fccfc6 340 }
co838_pld9 11:6dd427fccfc6 341
co838_pld9 11:6dd427fccfc6 342 draw_x0 = draw_x1 = x0;
co838_pld9 11:6dd427fccfc6 343 draw_y0 = draw_y1 = y0 + r;
co838_pld9 11:6dd427fccfc6 344 if (draw_y0 < height()) {
co838_pld9 11:6dd427fccfc6 345 pixel(draw_x0, draw_y0, color); /* 90 degree */
co838_pld9 11:6dd427fccfc6 346 }
co838_pld9 11:6dd427fccfc6 347
co838_pld9 11:6dd427fccfc6 348 draw_x2 = draw_x3 = x0;
co838_pld9 11:6dd427fccfc6 349 draw_y2 = draw_y3 = y0 - r;
co838_pld9 11:6dd427fccfc6 350 if (draw_y2 >= 0) {
co838_pld9 11:6dd427fccfc6 351 pixel(draw_x2, draw_y2, color); /* 270 degree */
co838_pld9 11:6dd427fccfc6 352 }
co838_pld9 11:6dd427fccfc6 353
co838_pld9 11:6dd427fccfc6 354 draw_x4 = draw_x6 = x0 + r;
co838_pld9 11:6dd427fccfc6 355 draw_y4 = draw_y6 = y0;
co838_pld9 11:6dd427fccfc6 356 if (draw_x4 < width()) {
co838_pld9 11:6dd427fccfc6 357 pixel(draw_x4, draw_y4, color); /* 0 degree */
co838_pld9 11:6dd427fccfc6 358 }
co838_pld9 11:6dd427fccfc6 359
co838_pld9 11:6dd427fccfc6 360 draw_x5 = draw_x7 = x0 - r;
co838_pld9 11:6dd427fccfc6 361 draw_y5 = draw_y7 = y0;
co838_pld9 11:6dd427fccfc6 362 if (draw_x5>=0) {
co838_pld9 11:6dd427fccfc6 363 pixel(draw_x5, draw_y5, color); /* 180 degree */
co838_pld9 11:6dd427fccfc6 364 }
co838_pld9 11:6dd427fccfc6 365
co838_pld9 11:6dd427fccfc6 366 if (r == 1) {
co838_pld9 11:6dd427fccfc6 367 return;
co838_pld9 11:6dd427fccfc6 368 }
co838_pld9 11:6dd427fccfc6 369
co838_pld9 11:6dd427fccfc6 370 di = 3 - 2*r;
co838_pld9 11:6dd427fccfc6 371 xx = 0;
co838_pld9 11:6dd427fccfc6 372 yy = r;
co838_pld9 11:6dd427fccfc6 373 while (xx < yy) {
co838_pld9 11:6dd427fccfc6 374
co838_pld9 11:6dd427fccfc6 375 if (di < 0) {
co838_pld9 11:6dd427fccfc6 376 di += 4*xx + 6;
co838_pld9 11:6dd427fccfc6 377 } else {
co838_pld9 11:6dd427fccfc6 378 di += 4*(xx - yy) + 10;
co838_pld9 11:6dd427fccfc6 379 yy--;
co838_pld9 11:6dd427fccfc6 380 draw_y0--;
co838_pld9 11:6dd427fccfc6 381 draw_y1--;
co838_pld9 11:6dd427fccfc6 382 draw_y2++;
co838_pld9 11:6dd427fccfc6 383 draw_y3++;
co838_pld9 11:6dd427fccfc6 384 draw_x4--;
co838_pld9 11:6dd427fccfc6 385 draw_x5++;
co838_pld9 11:6dd427fccfc6 386 draw_x6--;
co838_pld9 11:6dd427fccfc6 387 draw_x7++;
co838_pld9 11:6dd427fccfc6 388 }
co838_pld9 11:6dd427fccfc6 389 xx++;
co838_pld9 11:6dd427fccfc6 390 draw_x0++;
co838_pld9 11:6dd427fccfc6 391 draw_x1--;
co838_pld9 11:6dd427fccfc6 392 draw_x2++;
co838_pld9 11:6dd427fccfc6 393 draw_x3--;
co838_pld9 11:6dd427fccfc6 394 draw_y4++;
co838_pld9 11:6dd427fccfc6 395 draw_y5++;
co838_pld9 11:6dd427fccfc6 396 draw_y6--;
co838_pld9 11:6dd427fccfc6 397 draw_y7--;
co838_pld9 11:6dd427fccfc6 398
co838_pld9 11:6dd427fccfc6 399 if ( (draw_x0 <= width()) && (draw_y0>=0) ) {
co838_pld9 11:6dd427fccfc6 400 pixel(draw_x0, draw_y0, color);
co838_pld9 11:6dd427fccfc6 401 }
co838_pld9 11:6dd427fccfc6 402
co838_pld9 11:6dd427fccfc6 403 if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) {
co838_pld9 11:6dd427fccfc6 404 pixel(draw_x1, draw_y1, color);
co838_pld9 11:6dd427fccfc6 405 }
co838_pld9 11:6dd427fccfc6 406
co838_pld9 11:6dd427fccfc6 407 if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) {
co838_pld9 11:6dd427fccfc6 408 pixel(draw_x2, draw_y2, color);
co838_pld9 11:6dd427fccfc6 409 }
co838_pld9 11:6dd427fccfc6 410
co838_pld9 11:6dd427fccfc6 411 if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) {
co838_pld9 11:6dd427fccfc6 412 pixel(draw_x3, draw_y3, color);
co838_pld9 11:6dd427fccfc6 413 }
co838_pld9 11:6dd427fccfc6 414
co838_pld9 11:6dd427fccfc6 415 if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) {
co838_pld9 11:6dd427fccfc6 416 pixel(draw_x4, draw_y4, color);
co838_pld9 11:6dd427fccfc6 417 }
co838_pld9 11:6dd427fccfc6 418
co838_pld9 11:6dd427fccfc6 419 if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) {
co838_pld9 11:6dd427fccfc6 420 pixel(draw_x5, draw_y5, color);
co838_pld9 11:6dd427fccfc6 421 }
co838_pld9 11:6dd427fccfc6 422 if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) {
co838_pld9 11:6dd427fccfc6 423 pixel(draw_x6, draw_y6, color);
co838_pld9 11:6dd427fccfc6 424 }
co838_pld9 11:6dd427fccfc6 425 if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) {
co838_pld9 11:6dd427fccfc6 426 pixel(draw_x7, draw_y7, color);
co838_pld9 11:6dd427fccfc6 427 }
co838_pld9 11:6dd427fccfc6 428 }
co838_pld9 11:6dd427fccfc6 429 if(auto_up) copy_to_lcd();
co838_pld9 11:6dd427fccfc6 430 }
co838_pld9 11:6dd427fccfc6 431
co838_pld9 11:6dd427fccfc6 432 void C12832::fillcircle(int x, int y, int r, int color)
co838_pld9 11:6dd427fccfc6 433 {
co838_pld9 11:6dd427fccfc6 434 int i,up;
co838_pld9 11:6dd427fccfc6 435 up = auto_up;
co838_pld9 11:6dd427fccfc6 436 auto_up = 0; // off
co838_pld9 11:6dd427fccfc6 437 for (i = 0; i <= r; i++)
co838_pld9 11:6dd427fccfc6 438 circle(x,y,i,color);
co838_pld9 11:6dd427fccfc6 439 auto_up = up;
co838_pld9 11:6dd427fccfc6 440 if(auto_up) copy_to_lcd();
co838_pld9 11:6dd427fccfc6 441 }
co838_pld9 11:6dd427fccfc6 442
co838_pld9 11:6dd427fccfc6 443 void C12832::setmode(int mode)
co838_pld9 11:6dd427fccfc6 444 {
co838_pld9 11:6dd427fccfc6 445 draw_mode = mode;
co838_pld9 11:6dd427fccfc6 446 }
co838_pld9 11:6dd427fccfc6 447
co838_pld9 11:6dd427fccfc6 448 void C12832::locate(int x, int y)
co838_pld9 11:6dd427fccfc6 449 {
co838_pld9 11:6dd427fccfc6 450 char_x = x;
co838_pld9 11:6dd427fccfc6 451 char_y = y;
co838_pld9 11:6dd427fccfc6 452 }
co838_pld9 11:6dd427fccfc6 453
co838_pld9 11:6dd427fccfc6 454
co838_pld9 11:6dd427fccfc6 455
co838_pld9 11:6dd427fccfc6 456 int C12832::columns()
co838_pld9 11:6dd427fccfc6 457 {
co838_pld9 11:6dd427fccfc6 458 return width() / font[1];
co838_pld9 11:6dd427fccfc6 459 }
co838_pld9 11:6dd427fccfc6 460
co838_pld9 11:6dd427fccfc6 461
co838_pld9 11:6dd427fccfc6 462
co838_pld9 11:6dd427fccfc6 463 int C12832::rows()
co838_pld9 11:6dd427fccfc6 464 {
co838_pld9 11:6dd427fccfc6 465 return height() / font[2];
co838_pld9 11:6dd427fccfc6 466 }
co838_pld9 11:6dd427fccfc6 467
co838_pld9 11:6dd427fccfc6 468
co838_pld9 11:6dd427fccfc6 469
co838_pld9 11:6dd427fccfc6 470 int C12832::_putc(int value)
co838_pld9 11:6dd427fccfc6 471 {
co838_pld9 11:6dd427fccfc6 472 if (value == '\n') { // new line
co838_pld9 11:6dd427fccfc6 473 char_x = 0;
co838_pld9 11:6dd427fccfc6 474 char_y = char_y + font[2];
co838_pld9 11:6dd427fccfc6 475 if (char_y >= height() - font[2]) {
co838_pld9 11:6dd427fccfc6 476 char_y = 0;
co838_pld9 11:6dd427fccfc6 477 }
co838_pld9 11:6dd427fccfc6 478 } else {
co838_pld9 11:6dd427fccfc6 479 character(char_x, char_y, value);
co838_pld9 11:6dd427fccfc6 480 if(auto_up) copy_to_lcd();
co838_pld9 11:6dd427fccfc6 481 }
co838_pld9 11:6dd427fccfc6 482 return value;
co838_pld9 11:6dd427fccfc6 483 }
co838_pld9 11:6dd427fccfc6 484
co838_pld9 11:6dd427fccfc6 485 void C12832::character(int x, int y, int c)
co838_pld9 11:6dd427fccfc6 486 {
co838_pld9 11:6dd427fccfc6 487 unsigned int hor,vert,offset,bpl,j,i,b;
co838_pld9 11:6dd427fccfc6 488 unsigned char* zeichen;
co838_pld9 11:6dd427fccfc6 489 unsigned char z,w;
co838_pld9 11:6dd427fccfc6 490
co838_pld9 11:6dd427fccfc6 491 if ((c < 31) || (c > 127)) return; // test char range
co838_pld9 11:6dd427fccfc6 492
co838_pld9 11:6dd427fccfc6 493 // read font parameter from start of array
co838_pld9 11:6dd427fccfc6 494 offset = font[0]; // bytes / char
co838_pld9 11:6dd427fccfc6 495 hor = font[1]; // get hor size of font
co838_pld9 11:6dd427fccfc6 496 vert = font[2]; // get vert size of font
co838_pld9 11:6dd427fccfc6 497 bpl = font[3]; // bytes per line
co838_pld9 11:6dd427fccfc6 498
co838_pld9 11:6dd427fccfc6 499 if (char_x + hor > width()) {
co838_pld9 11:6dd427fccfc6 500 char_x = 0;
co838_pld9 11:6dd427fccfc6 501 char_y = char_y + vert;
co838_pld9 11:6dd427fccfc6 502 if (char_y >= height() - font[2]) {
co838_pld9 11:6dd427fccfc6 503 char_y = 0;
co838_pld9 11:6dd427fccfc6 504 }
co838_pld9 11:6dd427fccfc6 505 }
co838_pld9 11:6dd427fccfc6 506
co838_pld9 11:6dd427fccfc6 507 zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
co838_pld9 11:6dd427fccfc6 508 w = zeichen[0]; // width of actual char
co838_pld9 11:6dd427fccfc6 509 // construct the char into the buffer
co838_pld9 11:6dd427fccfc6 510 for (j=0; j<vert; j++) { // vert line
co838_pld9 11:6dd427fccfc6 511 for (i=0; i<hor; i++) { // horz line
co838_pld9 11:6dd427fccfc6 512 z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
co838_pld9 11:6dd427fccfc6 513 b = 1 << (j & 0x07);
co838_pld9 11:6dd427fccfc6 514 if (( z & b ) == 0x00) {
co838_pld9 11:6dd427fccfc6 515 pixel(x+i,y+j,0);
co838_pld9 11:6dd427fccfc6 516 } else {
co838_pld9 11:6dd427fccfc6 517 pixel(x+i,y+j,1);
co838_pld9 11:6dd427fccfc6 518 }
co838_pld9 11:6dd427fccfc6 519
co838_pld9 11:6dd427fccfc6 520 }
co838_pld9 11:6dd427fccfc6 521 }
co838_pld9 11:6dd427fccfc6 522
co838_pld9 11:6dd427fccfc6 523 char_x += w;
co838_pld9 11:6dd427fccfc6 524 }
co838_pld9 11:6dd427fccfc6 525
co838_pld9 11:6dd427fccfc6 526
co838_pld9 11:6dd427fccfc6 527 void C12832::set_font(unsigned char* f)
co838_pld9 11:6dd427fccfc6 528 {
co838_pld9 11:6dd427fccfc6 529 font = f;
co838_pld9 11:6dd427fccfc6 530 }
co838_pld9 11:6dd427fccfc6 531
co838_pld9 11:6dd427fccfc6 532 void C12832::set_auto_up(unsigned int up)
co838_pld9 11:6dd427fccfc6 533 {
co838_pld9 11:6dd427fccfc6 534 if(up ) auto_up = 1;
co838_pld9 11:6dd427fccfc6 535 else auto_up = 0;
co838_pld9 11:6dd427fccfc6 536 }
co838_pld9 11:6dd427fccfc6 537
co838_pld9 11:6dd427fccfc6 538 unsigned int C12832::get_auto_up(void)
co838_pld9 11:6dd427fccfc6 539 {
co838_pld9 11:6dd427fccfc6 540 return (auto_up);
co838_pld9 11:6dd427fccfc6 541 }
co838_pld9 11:6dd427fccfc6 542
co838_pld9 11:6dd427fccfc6 543 void C12832::print_bm(Bitmap bm, int x, int y)
co838_pld9 11:6dd427fccfc6 544 {
co838_pld9 11:6dd427fccfc6 545 int h,v,b;
co838_pld9 11:6dd427fccfc6 546 char d;
co838_pld9 11:6dd427fccfc6 547
co838_pld9 11:6dd427fccfc6 548 for(v=0; v < bm.ySize; v++) { // lines
co838_pld9 11:6dd427fccfc6 549 for(h=0; h < bm.xSize; h++) { // pixel
co838_pld9 11:6dd427fccfc6 550 if(h + x > 127) break;
co838_pld9 11:6dd427fccfc6 551 if(v + y > 31) break;
co838_pld9 11:6dd427fccfc6 552 d = bm.data[bm.Byte_in_Line * v + ((h & 0xF8) >> 3)];
co838_pld9 11:6dd427fccfc6 553 b = 0x80 >> (h & 0x07);
co838_pld9 11:6dd427fccfc6 554 if((d & b) == 0) {
co838_pld9 11:6dd427fccfc6 555 pixel(x+h,y+v,0);
co838_pld9 11:6dd427fccfc6 556 } else {
co838_pld9 11:6dd427fccfc6 557 pixel(x+h,y+v,1);
co838_pld9 11:6dd427fccfc6 558 }
co838_pld9 11:6dd427fccfc6 559 }
co838_pld9 11:6dd427fccfc6 560 }
co838_pld9 11:6dd427fccfc6 561
co838_pld9 11:6dd427fccfc6 562 }
co838_pld9 11:6dd427fccfc6 563
co838_pld9 11:6dd427fccfc6 564