Hideki Kozima / OLEDaccel

This library provides an OLED (SSD1332, 96x64xRGB) interface that best utilizes SSD1332's graphic accelerator (especially for drawing lines and rectangles). Though it still has some limitations --- it does not support 'clipping', odd numbers for circle/ellipse diameter, and so on, it runs quite fast. Enjoy the speed.

Dependents:   OLEDexample

Fork of OLEDaccel by Hideki Kozima

OLEDaccel.cpp@0:76a5ae915f62, 2012-08-17 (annotated)

Committer:
xkozima
Date:
Fri Aug 17 15:30:29 2012 +0000
Revision:
0:76a5ae915f62
This library provides an OLED (SSD1332, 96x64xRGB) interface that best utilizes SSD1332's graphic accelerator (especially for drawing lines and rectangles). Though it still has some limitations --- it does not support 'clipping', odd numbers for circle...

Who changed what in which revision?

UserRevisionLine numberNew contents of line
xkozima 0:76a5ae915f62 1 //
xkozima 0:76a5ae915f62 2 // OLEDaccel: 96x64 OLED driver
xkozima 0:76a5ae915f62 3 // (version 0.2, August 17, 2012)
xkozima 0:76a5ae915f62 4 // xkozima@myu.ac.jp
xkozima 0:76a5ae915f62 5
xkozima 0:76a5ae915f62 6 #include "OLEDaccel.h"
xkozima 0:76a5ae915f62 7 #include "font6x8.h"
xkozima 0:76a5ae915f62 8
xkozima 0:76a5ae915f62 9 OLED::OLED (PinName rstPin, PinName csPin, PinName dcPin, PinName mosiPin, PinName sckPin) :
xkozima 0:76a5ae915f62 10 rst(rstPin), cs(csPin), dc(dcPin), spi(mosiPin, NC, sckPin)
xkozima 0:76a5ae915f62 11 {
xkozima 0:76a5ae915f62 12 // setup spi (8bit master @48MHz)
xkozima 0:76a5ae915f62 13 spi.format(8,3);
xkozima 0:76a5ae915f62 14 spi.frequency(48000000);
xkozima 0:76a5ae915f62 15 wait_ms(20);
xkozima 0:76a5ae915f62 16
xkozima 0:76a5ae915f62 17 // reset OLED
xkozima 0:76a5ae915f62 18 rst = 0;
xkozima 0:76a5ae915f62 19 wait_ms(20);
xkozima 0:76a5ae915f62 20 rst = 1;
xkozima 0:76a5ae915f62 21 wait_ms(20);
xkozima 0:76a5ae915f62 22
xkozima 0:76a5ae915f62 23 // init command
xkozima 0:76a5ae915f62 24 unsigned char cmd1[] = {0xa0, 0x70};
xkozima 0:76a5ae915f62 25 cmdOut(cmd1, 2);
xkozima 0:76a5ae915f62 26 unsigned char cmd2[] = {0xaf};
xkozima 0:76a5ae915f62 27 cmdOut(cmd2, 1);
xkozima 0:76a5ae915f62 28 unsigned char cmd3[] = {0x26, 0x01};
xkozima 0:76a5ae915f62 29 cmdOut(cmd3, 2);
xkozima 0:76a5ae915f62 30
xkozima 0:76a5ae915f62 31 // clear flags
xkozima 0:76a5ae915f62 32 reversal = false;
xkozima 0:76a5ae915f62 33 filling = true;
xkozima 0:76a5ae915f62 34
xkozima 0:76a5ae915f62 35 // clear and display on
xkozima 0:76a5ae915f62 36 rect(0, 0, 96, 64, 0, 1);
xkozima 0:76a5ae915f62 37 wait(0.1);
xkozima 0:76a5ae915f62 38 cmdOutOne(0xaf); // display on
xkozima 0:76a5ae915f62 39 }
xkozima 0:76a5ae915f62 40
xkozima 0:76a5ae915f62 41 void OLED::cmdOutOne(unsigned char cmdOne)
xkozima 0:76a5ae915f62 42 {
xkozima 0:76a5ae915f62 43 dc = 0;
xkozima 0:76a5ae915f62 44 cs = 0;
xkozima 0:76a5ae915f62 45 spi.write(cmdOne);
xkozima 0:76a5ae915f62 46 cs = 1;
xkozima 0:76a5ae915f62 47 }
xkozima 0:76a5ae915f62 48
xkozima 0:76a5ae915f62 49 void OLED::cmdOut(unsigned char *cmd, int length)
xkozima 0:76a5ae915f62 50 {
xkozima 0:76a5ae915f62 51 dc = 0;
xkozima 0:76a5ae915f62 52 cs = 0;
xkozima 0:76a5ae915f62 53 for (int i = 0; i < length; i++) {
xkozima 0:76a5ae915f62 54 spi.write(*cmd++);
xkozima 0:76a5ae915f62 55 }
xkozima 0:76a5ae915f62 56 cs = 1;
xkozima 0:76a5ae915f62 57 }
xkozima 0:76a5ae915f62 58
xkozima 0:76a5ae915f62 59 void OLED::dataOut(unsigned short *data, int length)
xkozima 0:76a5ae915f62 60 {
xkozima 0:76a5ae915f62 61 dc = 1;
xkozima 0:76a5ae915f62 62 cs = 0;
xkozima 0:76a5ae915f62 63 for (int i = 0; i < length; i++) {
xkozima 0:76a5ae915f62 64 unsigned short d16 = *data++;
xkozima 0:76a5ae915f62 65 spi.write((unsigned char) ((d16 & 0xff00) >> 8));
xkozima 0:76a5ae915f62 66 spi.write((unsigned char) (d16 & 0x00ff));
xkozima 0:76a5ae915f62 67 }
xkozima 0:76a5ae915f62 68 cs = 1;
xkozima 0:76a5ae915f62 69 }
xkozima 0:76a5ae915f62 70
xkozima 0:76a5ae915f62 71 unsigned short OLED::color (int r, int g, int b)
xkozima 0:76a5ae915f62 72 {
xkozima 0:76a5ae915f62 73 return ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3);
xkozima 0:76a5ae915f62 74 }
xkozima 0:76a5ae915f62 75
xkozima 0:76a5ae915f62 76 void OLED::clear (unsigned short color)
xkozima 0:76a5ae915f62 77 {
xkozima 0:76a5ae915f62 78 rect(0, 0, 96, 64, color, 1);
xkozima 0:76a5ae915f62 79 }
xkozima 0:76a5ae915f62 80
xkozima 0:76a5ae915f62 81 void OLED::point(int x, int y, unsigned short color)
xkozima 0:76a5ae915f62 82 {
xkozima 0:76a5ae915f62 83 // draw a point (a small rectangle/filled)
xkozima 0:76a5ae915f62 84 unsigned char c1 = (color & 0xf800) >> 10,
xkozima 0:76a5ae915f62 85 c2 = (color & 0x07e0) >> 5,
xkozima 0:76a5ae915f62 86 c3 = (color & 0x001f) << 1;
xkozima 0:76a5ae915f62 87 unsigned char cmd[] = {0x22, x, y, x, y,
xkozima 0:76a5ae915f62 88 c1, c2, c3, c1, c2, c3 };
xkozima 0:76a5ae915f62 89 cmdOut(cmd, 11);
xkozima 0:76a5ae915f62 90 }
xkozima 0:76a5ae915f62 91
xkozima 0:76a5ae915f62 92 void OLED::rect (int x, int y, int w, int h,
xkozima 0:76a5ae915f62 93 unsigned short color, int fill )
xkozima 0:76a5ae915f62 94 {
xkozima 0:76a5ae915f62 95 unsigned char c1 = (color & 0xf800) >> 10,
xkozima 0:76a5ae915f62 96 c2 = (color & 0x07e0) >> 5,
xkozima 0:76a5ae915f62 97 c3 = (color & 0x001f) << 1;
xkozima 0:76a5ae915f62 98 //
xkozima 0:76a5ae915f62 99 // fill or no fill
xkozima 0:76a5ae915f62 100 if (fill) {
xkozima 0:76a5ae915f62 101 if (! filling) {
xkozima 0:76a5ae915f62 102 unsigned char cmdF[] = {0x26, 1};
xkozima 0:76a5ae915f62 103 cmdOut(cmdF, 2);
xkozima 0:76a5ae915f62 104 filling = true;
xkozima 0:76a5ae915f62 105 }
xkozima 0:76a5ae915f62 106 }
xkozima 0:76a5ae915f62 107 else {
xkozima 0:76a5ae915f62 108 if (filling) {
xkozima 0:76a5ae915f62 109 unsigned char cmdN[] = {0x26, 0};
xkozima 0:76a5ae915f62 110 cmdOut(cmdN, 2);
xkozima 0:76a5ae915f62 111 filling = false;
xkozima 0:76a5ae915f62 112 }
xkozima 0:76a5ae915f62 113 }
xkozima 0:76a5ae915f62 114 // un-reverse
xkozima 0:76a5ae915f62 115 if (reversal) {
xkozima 0:76a5ae915f62 116 unsigned char cmdN[] = {0xa0, 0x70};
xkozima 0:76a5ae915f62 117 cmdOut(cmdN, 2);
xkozima 0:76a5ae915f62 118 reversal = false;
xkozima 0:76a5ae915f62 119 }
xkozima 0:76a5ae915f62 120 // draw/fill the rectangle
xkozima 0:76a5ae915f62 121 unsigned char cmd[] = {0x22, x, y, x + w - 1, y + h - 1,
xkozima 0:76a5ae915f62 122 c1, c2, c3, c1, c2, c3 };
xkozima 0:76a5ae915f62 123 cmdOut(cmd, 11);
xkozima 0:76a5ae915f62 124 // wait
xkozima 0:76a5ae915f62 125 wait_us(w * h / 10);
xkozima 0:76a5ae915f62 126 }
xkozima 0:76a5ae915f62 127
xkozima 0:76a5ae915f62 128 void OLED::line(int x1, int y1, int x2, int y2, unsigned short color)
xkozima 0:76a5ae915f62 129 {
xkozima 0:76a5ae915f62 130 unsigned char c1 = (color & 0xf800) >> 10,
xkozima 0:76a5ae915f62 131 c2 = (color & 0x07e0) >> 5,
xkozima 0:76a5ae915f62 132 c3 = (color & 0x001f) << 1;
xkozima 0:76a5ae915f62 133 if (x1 < x2) {
xkozima 0:76a5ae915f62 134 if (y1 < y2) {
xkozima 0:76a5ae915f62 135 // normal
xkozima 0:76a5ae915f62 136 unsigned char cmd[] = {0x21, x1, y1, x2, y2, c1, c2, c3};
xkozima 0:76a5ae915f62 137 if (reversal) {
xkozima 0:76a5ae915f62 138 unsigned char cmdN[] = {0xa0, 0x70};
xkozima 0:76a5ae915f62 139 cmdOut(cmdN, 2);
xkozima 0:76a5ae915f62 140 reversal = false;
xkozima 0:76a5ae915f62 141 }
xkozima 0:76a5ae915f62 142 cmdOut(cmd, 8);
xkozima 0:76a5ae915f62 143 }
xkozima 0:76a5ae915f62 144 else if (y1 > y2) {
xkozima 0:76a5ae915f62 145 // reversal
xkozima 0:76a5ae915f62 146 if (! reversal) {
xkozima 0:76a5ae915f62 147 unsigned char cmdR[] = {0xa0, 0x72};
xkozima 0:76a5ae915f62 148 cmdOut(cmdR, 2);
xkozima 0:76a5ae915f62 149 reversal = true;
xkozima 0:76a5ae915f62 150 }
xkozima 0:76a5ae915f62 151 unsigned char cmd[] = {0x21, 95 - x2, y2, 95 - x1, y1, c1, c2, c3};
xkozima 0:76a5ae915f62 152 cmdOut(cmd, 8);
xkozima 0:76a5ae915f62 153 }
xkozima 0:76a5ae915f62 154 else { // y1 == y2
xkozima 0:76a5ae915f62 155 // normal
xkozima 0:76a5ae915f62 156 unsigned char cmd[] = {0x21, x1, y1, x2, y2, c1, c2, c3};
xkozima 0:76a5ae915f62 157 if (reversal) {
xkozima 0:76a5ae915f62 158 unsigned char cmdN[] = {0xa0, 0x70};
xkozima 0:76a5ae915f62 159 cmdOut(cmdN, 2);
xkozima 0:76a5ae915f62 160 reversal = false;
xkozima 0:76a5ae915f62 161 }
xkozima 0:76a5ae915f62 162 cmdOut(cmd, 8);
xkozima 0:76a5ae915f62 163 }
xkozima 0:76a5ae915f62 164 }
xkozima 0:76a5ae915f62 165 else if (x1 > x2) {
xkozima 0:76a5ae915f62 166 if (y1 < y2) {
xkozima 0:76a5ae915f62 167 // reversal
xkozima 0:76a5ae915f62 168 if (! reversal) {
xkozima 0:76a5ae915f62 169 unsigned char cmdR[] = {0xa0, 0x72};
xkozima 0:76a5ae915f62 170 cmdOut(cmdR, 2);
xkozima 0:76a5ae915f62 171 reversal = true;
xkozima 0:76a5ae915f62 172 }
xkozima 0:76a5ae915f62 173 unsigned char cmd[] = {0x21, 95 - x2, y2, 95 - x1, y1, c1, c2, c3};
xkozima 0:76a5ae915f62 174 cmdOut(cmd, 8);
xkozima 0:76a5ae915f62 175 }
xkozima 0:76a5ae915f62 176 else if (y1 > y2) {
xkozima 0:76a5ae915f62 177 // normal
xkozima 0:76a5ae915f62 178 unsigned char cmd[] = {0x21, x1, y1, x2, y2, c1, c2, c3};
xkozima 0:76a5ae915f62 179 if (reversal) {
xkozima 0:76a5ae915f62 180 unsigned char cmdN[] = {0xa0, 0x70};
xkozima 0:76a5ae915f62 181 cmdOut(cmdN, 2);
xkozima 0:76a5ae915f62 182 reversal = false;
xkozima 0:76a5ae915f62 183 }
xkozima 0:76a5ae915f62 184 cmdOut(cmd, 8);
xkozima 0:76a5ae915f62 185 }
xkozima 0:76a5ae915f62 186 else { // y1 == y2
xkozima 0:76a5ae915f62 187 // reversal
xkozima 0:76a5ae915f62 188 unsigned char cmd[] = {0xa0, 0x72,
xkozima 0:76a5ae915f62 189 0x21, 95 - x2, y2, 95 - x1, y1, c1, c2, c3,
xkozima 0:76a5ae915f62 190 0xa0, 0x70 };
xkozima 0:76a5ae915f62 191 cmdOut(cmd, 12);
xkozima 0:76a5ae915f62 192 }
xkozima 0:76a5ae915f62 193 }
xkozima 0:76a5ae915f62 194 else { // x1 == x2
xkozima 0:76a5ae915f62 195 if (y1 < y2) {
xkozima 0:76a5ae915f62 196 // normal
xkozima 0:76a5ae915f62 197 unsigned char cmd[] = {0x21, x1, y1, x2, y2, c1, c2, c3};
xkozima 0:76a5ae915f62 198 if (reversal) {
xkozima 0:76a5ae915f62 199 unsigned char cmdN[] = {0xa0, 0x70};
xkozima 0:76a5ae915f62 200 cmdOut(cmdN, 2);
xkozima 0:76a5ae915f62 201 reversal = false;
xkozima 0:76a5ae915f62 202 }
xkozima 0:76a5ae915f62 203 cmdOut(cmd, 8);
xkozima 0:76a5ae915f62 204 }
xkozima 0:76a5ae915f62 205 else if (y1 > y2) {
xkozima 0:76a5ae915f62 206 // normal (force downward)
xkozima 0:76a5ae915f62 207 unsigned char cmd[] = {0x21, x2, y2, x1, y1, c1, c2, c3};
xkozima 0:76a5ae915f62 208 cmdOut(cmd, 8);
xkozima 0:76a5ae915f62 209 }
xkozima 0:76a5ae915f62 210 else { // y1 == y2
xkozima 0:76a5ae915f62 211 // normal (point)
xkozima 0:76a5ae915f62 212 unsigned char cmd[] = {0x21, x1, y1, x2, y2, c1, c2, c3};
xkozima 0:76a5ae915f62 213 if (reversal) {
xkozima 0:76a5ae915f62 214 unsigned char cmdN[] = {0xa0, 0x70};
xkozima 0:76a5ae915f62 215 cmdOut(cmdN, 2);
xkozima 0:76a5ae915f62 216 reversal = false;
xkozima 0:76a5ae915f62 217 }
xkozima 0:76a5ae915f62 218 cmdOut(cmd, 8);
xkozima 0:76a5ae915f62 219 }
xkozima 0:76a5ae915f62 220 }
xkozima 0:76a5ae915f62 221 // wait
xkozima 0:76a5ae915f62 222 wait_us(1);
xkozima 0:76a5ae915f62 223 }
xkozima 0:76a5ae915f62 224
xkozima 0:76a5ae915f62 225 void OLED::circle(int x, int y, int r, unsigned short color, int fill)
xkozima 0:76a5ae915f62 226 {
xkozima 0:76a5ae915f62 227 // exception
xkozima 0:76a5ae915f62 228 if (r < 1) {
xkozima 0:76a5ae915f62 229 line(x, y, x, y, color);
xkozima 0:76a5ae915f62 230 return;
xkozima 0:76a5ae915f62 231 } else if (r == 1) {
xkozima 0:76a5ae915f62 232 rect(x - 1, y - 1, 3, 3, color, fill);
xkozima 0:76a5ae915f62 233 return;
xkozima 0:76a5ae915f62 234 }
xkozima 0:76a5ae915f62 235 // ok, go
xkozima 0:76a5ae915f62 236 int xx = 0,
xkozima 0:76a5ae915f62 237 yy = r,
xkozima 0:76a5ae915f62 238 err = 2 - 2 * r;
xkozima 0:76a5ae915f62 239 // iteration
xkozima 0:76a5ae915f62 240 do {
xkozima 0:76a5ae915f62 241 // draw it!
xkozima 0:76a5ae915f62 242 if (fill) {
xkozima 0:76a5ae915f62 243 line(x + xx, y + yy, x + xx, y, color);
xkozima 0:76a5ae915f62 244 line(x - xx, y + yy, x, y + yy, color);
xkozima 0:76a5ae915f62 245 line(x - xx, y - yy, x - xx, y, color);
xkozima 0:76a5ae915f62 246 line(x + xx, y - yy, x, y - yy, color);
xkozima 0:76a5ae915f62 247 }
xkozima 0:76a5ae915f62 248 else {
xkozima 0:76a5ae915f62 249 point(x + xx, y + yy, color);
xkozima 0:76a5ae915f62 250 point(x - xx, y + yy, color);
xkozima 0:76a5ae915f62 251 point(x - xx, y - yy, color);
xkozima 0:76a5ae915f62 252 point(x + xx, y - yy, color);
xkozima 0:76a5ae915f62 253 }
xkozima 0:76a5ae915f62 254 // walk
xkozima 0:76a5ae915f62 255 if (err > -yy) {
xkozima 0:76a5ae915f62 256 yy--;
xkozima 0:76a5ae915f62 257 err += 1 - 2 * yy;
xkozima 0:76a5ae915f62 258 }
xkozima 0:76a5ae915f62 259 if (err <= xx) {
xkozima 0:76a5ae915f62 260 xx++;
xkozima 0:76a5ae915f62 261 err += 1 + 2 * xx;
xkozima 0:76a5ae915f62 262 }
xkozima 0:76a5ae915f62 263 } while (yy >= 0);
xkozima 0:76a5ae915f62 264 }
xkozima 0:76a5ae915f62 265
xkozima 0:76a5ae915f62 266 void OLED::ellipse(int x, int y, int rx, int ry, unsigned short color, int fill)
xkozima 0:76a5ae915f62 267 {
xkozima 0:76a5ae915f62 268 // exception
xkozima 0:76a5ae915f62 269 if (rx < 1) {
xkozima 0:76a5ae915f62 270 line(x, y - ry, x, y + ry, color);
xkozima 0:76a5ae915f62 271 return;
xkozima 0:76a5ae915f62 272 }
xkozima 0:76a5ae915f62 273 else if (ry < 1) {
xkozima 0:76a5ae915f62 274 line(x - rx, y, x + rx, y, color);
xkozima 0:76a5ae915f62 275 return;
xkozima 0:76a5ae915f62 276 }
xkozima 0:76a5ae915f62 277 // ok, go
xkozima 0:76a5ae915f62 278 int xx = -rx, yy = 0;
xkozima 0:76a5ae915f62 279 int e2 = ry,
xkozima 0:76a5ae915f62 280 dx = (2 * xx + 1) * e2 * e2,
xkozima 0:76a5ae915f62 281 dy = xx * xx,
xkozima 0:76a5ae915f62 282 err = dx + dy;
xkozima 0:76a5ae915f62 283 do {
xkozima 0:76a5ae915f62 284 if (fill) {
xkozima 0:76a5ae915f62 285 line(x + xx, y + yy, x + xx, y, color);
xkozima 0:76a5ae915f62 286 line(x - xx, y + yy, x, y + yy, color);
xkozima 0:76a5ae915f62 287 line(x - xx, y - yy, x - xx, y, color);
xkozima 0:76a5ae915f62 288 line(x + xx, y - yy, x, y - yy, color);
xkozima 0:76a5ae915f62 289 }
xkozima 0:76a5ae915f62 290 else {
xkozima 0:76a5ae915f62 291 point(x + xx, y + yy, color);
xkozima 0:76a5ae915f62 292 point(x - xx, y + yy, color);
xkozima 0:76a5ae915f62 293 point(x - xx, y - yy, color);
xkozima 0:76a5ae915f62 294 point(x + xx, y - yy, color);
xkozima 0:76a5ae915f62 295 }
xkozima 0:76a5ae915f62 296 e2 = 2 * err;
xkozima 0:76a5ae915f62 297 if (e2 >= dx) {
xkozima 0:76a5ae915f62 298 xx++;
xkozima 0:76a5ae915f62 299 dx += 2 * ry * ry;
xkozima 0:76a5ae915f62 300 err += dx;
xkozima 0:76a5ae915f62 301 }
xkozima 0:76a5ae915f62 302 if (e2 <= dy) {
xkozima 0:76a5ae915f62 303 yy++;
xkozima 0:76a5ae915f62 304 dy += 2 * rx * rx;
xkozima 0:76a5ae915f62 305 err += dy;
xkozima 0:76a5ae915f62 306 }
xkozima 0:76a5ae915f62 307 } while (xx <= 0);
xkozima 0:76a5ae915f62 308 if (fill) {
xkozima 0:76a5ae915f62 309 while (yy++ < ry) {
xkozima 0:76a5ae915f62 310 line(x, y + yy, x, y, color);
xkozima 0:76a5ae915f62 311 line(x, y - yy, x, y, color);
xkozima 0:76a5ae915f62 312 }
xkozima 0:76a5ae915f62 313 }
xkozima 0:76a5ae915f62 314 else {
xkozima 0:76a5ae915f62 315 while (yy++ < ry) {
xkozima 0:76a5ae915f62 316 point(x, y + yy, color);
xkozima 0:76a5ae915f62 317 point(x, y - yy, color);
xkozima 0:76a5ae915f62 318 }
xkozima 0:76a5ae915f62 319 }
xkozima 0:76a5ae915f62 320 }
xkozima 0:76a5ae915f62 321
xkozima 0:76a5ae915f62 322 void OLED::image(int x, int y, int w, int h, unsigned short *image16)
xkozima 0:76a5ae915f62 323 {
xkozima 0:76a5ae915f62 324 // un-reverse
xkozima 0:76a5ae915f62 325 if (reversal) {
xkozima 0:76a5ae915f62 326 unsigned char cmdN[] = {0xa0, 0x70};
xkozima 0:76a5ae915f62 327 cmdOut(cmdN, 2);
xkozima 0:76a5ae915f62 328 reversal = false;
xkozima 0:76a5ae915f62 329 }
xkozima 0:76a5ae915f62 330 // setup the region to fill
xkozima 0:76a5ae915f62 331 unsigned char cmd[]={0x15, x, x+w-1, 0x75, y, y+h-1};
xkozima 0:76a5ae915f62 332 cmdOut(cmd, 6);
xkozima 0:76a5ae915f62 333 // fill up the region with the image data
xkozima 0:76a5ae915f62 334 dataOut(image16, w * h);
xkozima 0:76a5ae915f62 335 // wait
xkozima 0:76a5ae915f62 336 wait_us(100);
xkozima 0:76a5ae915f62 337 }
xkozima 0:76a5ae915f62 338
xkozima 0:76a5ae915f62 339 void OLED::image(int x, int y, int w, int h, const unsigned short *image16)
xkozima 0:76a5ae915f62 340 {
xkozima 0:76a5ae915f62 341 image(x, y, w, h, (unsigned short *) image16);
xkozima 0:76a5ae915f62 342 }
xkozima 0:76a5ae915f62 343
xkozima 0:76a5ae915f62 344 void OLED::image(int x, int y, int w, int h, unsigned char *image8x3)
xkozima 0:76a5ae915f62 345 {
xkozima 0:76a5ae915f62 346 // un-reverse
xkozima 0:76a5ae915f62 347 if (reversal) {
xkozima 0:76a5ae915f62 348 unsigned char cmdN[] = {0xa0, 0x70};
xkozima 0:76a5ae915f62 349 cmdOut(cmdN, 2);
xkozima 0:76a5ae915f62 350 reversal = false;
xkozima 0:76a5ae915f62 351 }
xkozima 0:76a5ae915f62 352 // setup the region to fill
xkozima 0:76a5ae915f62 353 unsigned char cmd[]={0x15, x, x+w-1, 0x75, y, y+h-1};
xkozima 0:76a5ae915f62 354 cmdOut(cmd, 6);
xkozima 0:76a5ae915f62 355 // fill up the region with the image data
xkozima 0:76a5ae915f62 356 int size = w * h;
xkozima 0:76a5ae915f62 357 for (int k = 0; k < size; k++) {
xkozima 0:76a5ae915f62 358 unsigned char r, g, b;
xkozima 0:76a5ae915f62 359 b = *image8x3++;
xkozima 0:76a5ae915f62 360 g = *image8x3++;
xkozima 0:76a5ae915f62 361 r = *image8x3++;
xkozima 0:76a5ae915f62 362 unsigned short data16 = color(r, g, b);
xkozima 0:76a5ae915f62 363 dataOut(&data16, 1);
xkozima 0:76a5ae915f62 364 }
xkozima 0:76a5ae915f62 365 // wait
xkozima 0:76a5ae915f62 366 wait_us(100);
xkozima 0:76a5ae915f62 367 }
xkozima 0:76a5ae915f62 368
xkozima 0:76a5ae915f62 369 void OLED::image(int x, int y, int w, int h, const unsigned char *image8x3)
xkozima 0:76a5ae915f62 370 {
xkozima 0:76a5ae915f62 371 image(x, y, w, h, (unsigned char *) image8x3);
xkozima 0:76a5ae915f62 372 }
xkozima 0:76a5ae915f62 373
xkozima 0:76a5ae915f62 374 void OLED::text(int x, int y, char *string, unsigned short color)
xkozima 0:76a5ae915f62 375 {
xkozima 0:76a5ae915f62 376 int len = strlen(string);
xkozima 0:76a5ae915f62 377 for (int i = 0; i < len; i++) {
xkozima 0:76a5ae915f62 378 int xx = x + i * 6;
xkozima 0:76a5ae915f62 379 unsigned char code = string[i];
xkozima 0:76a5ae915f62 380 if (code < 0x20 || code >= 0x80) continue;
xkozima 0:76a5ae915f62 381 unsigned char *font = font6x8 + ((code - 0x20) * 6);
xkozima 0:76a5ae915f62 382 for (int fx = 0; fx < 6; fx++) {
xkozima 0:76a5ae915f62 383 if (xx + fx > 95) break;
xkozima 0:76a5ae915f62 384 unsigned char line = *(font + fx);
xkozima 0:76a5ae915f62 385 for (int fy = 0, bit = 0x01; fy < 8; fy++, bit <<= 1) {
xkozima 0:76a5ae915f62 386 if (line & bit) point(xx + fx, y + fy, color);
xkozima 0:76a5ae915f62 387 }
xkozima 0:76a5ae915f62 388 }
xkozima 0:76a5ae915f62 389 }
xkozima 0:76a5ae915f62 390 }
xkozima 0:76a5ae915f62 391
xkozima 0:76a5ae915f62 392 void OLED::text(int x, int y, char *string, unsigned short colorF, unsigned short colorB)
xkozima 0:76a5ae915f62 393 {
xkozima 0:76a5ae915f62 394 // clear the background
xkozima 0:76a5ae915f62 395 int w = strlen(string) * 6;
xkozima 0:76a5ae915f62 396 if (x + w > 95) w = 95 - x;
xkozima 0:76a5ae915f62 397 rect(x, y, w, 8, colorB, 1);
xkozima 0:76a5ae915f62 398 // overwrite the text
xkozima 0:76a5ae915f62 399 text(x, y, string, colorF);
xkozima 0:76a5ae915f62 400 }