Brandon Fairfield / 4DGL-uLCD-SE

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of 4DGL-uLCD-SE by jim hamblen

uLCD_4DGL_Graphics.cpp@7:e39a44de229a, 2013-11-30 (annotated)

Committer:
4180_1
Date:
Sat Nov 30 02:05:15 2013 +0000
Revision:
7:e39a44de229a
Parent:
6:b759b69cbaf9 
ver1.5

Who changed what in which revision?

UserRevisionLine numberNew contents of line
4180_1 1:8b656995301f 1 //
4180_1 6:b759b69cbaf9 2 // uLCD_4DGL is a class to drive 4D Systems LCD screens
4180_1 1:8b656995301f 3 //
4180_1 1:8b656995301f 4 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
4180_1 7:e39a44de229a 5 // Modifed for Goldelox processor <2013> Jim Hamblen
4180_1 1:8b656995301f 6 //
4180_1 1:8b656995301f 7 // uLCD_4DGL is free software: you can redistribute it and/or modify
4180_1 1:8b656995301f 8 // it under the terms of the GNU General Public License as published by
4180_1 1:8b656995301f 9 // the Free Software Foundation, either version 3 of the License, or
4180_1 1:8b656995301f 10 // (at your option) any later version.
4180_1 1:8b656995301f 11 //
4180_1 1:8b656995301f 12 // uLCD_4DGL is distributed in the hope that it will be useful,
4180_1 1:8b656995301f 13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
4180_1 1:8b656995301f 14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4180_1 1:8b656995301f 15 // GNU General Public License for more details.
4180_1 1:8b656995301f 16 //
4180_1 1:8b656995301f 17 // You should have received a copy of the GNU General Public License
4180_1 1:8b656995301f 18 // along with uLCD_4DGL. If not, see <http://www.gnu.org/licenses/>.
4180_1 1:8b656995301f 19
4180_1 1:8b656995301f 20 #include "mbed.h"
4180_1 1:8b656995301f 21 #include "uLCD_4DGL.h"
4180_1 1:8b656995301f 22
4180_1 1:8b656995301f 23 #define ARRAY_SIZE(X) sizeof(X)/sizeof(X[0])
4180_1 1:8b656995301f 24
4180_1 1:8b656995301f 25 //****************************************************************************************************
4180_1 3:9ba47197d94f 26 void uLCD_4DGL :: circle(int x, int y , int radius, int color) // draw a circle in (x,y)
4180_1 3:9ba47197d94f 27 {
4180_1 1:8b656995301f 28 char command[9]= "";
4180_1 1:8b656995301f 29
4180_1 1:8b656995301f 30 command[0] = CIRCLE;
4180_1 1:8b656995301f 31
4180_1 1:8b656995301f 32 command[1] = (x >> 8) & 0xFF;
4180_1 1:8b656995301f 33 command[2] = x & 0xFF;
4180_1 1:8b656995301f 34
4180_1 1:8b656995301f 35 command[3] = (y >> 8) & 0xFF;
4180_1 1:8b656995301f 36 command[4] = y & 0xFF;
4180_1 1:8b656995301f 37
4180_1 1:8b656995301f 38 command[5] = (radius >> 8) & 0xFF;
4180_1 1:8b656995301f 39 command[6] = radius & 0xFF;
4180_1 1:8b656995301f 40
4180_1 1:8b656995301f 41 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
4180_1 1:8b656995301f 42 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
4180_1 1:8b656995301f 43 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
4180_1 1:8b656995301f 44
4180_1 1:8b656995301f 45 command[7] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
4180_1 1:8b656995301f 46 command[8] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
4180_1 1:8b656995301f 47
4180_1 1:8b656995301f 48 writeCOMMAND(command, 9);
4180_1 1:8b656995301f 49 }
4180_1 7:e39a44de229a 50 //****************************************************************************************************
4180_1 7:e39a44de229a 51 void uLCD_4DGL :: filled_circle(int x, int y , int radius, int color) // draw a circle in (x,y)
4180_1 7:e39a44de229a 52 {
4180_1 7:e39a44de229a 53 char command[9]= "";
4180_1 7:e39a44de229a 54
4180_1 7:e39a44de229a 55 command[0] = FCIRCLE;
4180_1 7:e39a44de229a 56
4180_1 7:e39a44de229a 57 command[1] = (x >> 8) & 0xFF;
4180_1 7:e39a44de229a 58 command[2] = x & 0xFF;
4180_1 7:e39a44de229a 59
4180_1 7:e39a44de229a 60 command[3] = (y >> 8) & 0xFF;
4180_1 7:e39a44de229a 61 command[4] = y & 0xFF;
4180_1 7:e39a44de229a 62
4180_1 7:e39a44de229a 63 command[5] = (radius >> 8) & 0xFF;
4180_1 7:e39a44de229a 64 command[6] = radius & 0xFF;
4180_1 7:e39a44de229a 65
4180_1 7:e39a44de229a 66 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
4180_1 7:e39a44de229a 67 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
4180_1 7:e39a44de229a 68 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
4180_1 7:e39a44de229a 69
4180_1 7:e39a44de229a 70 command[7] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
4180_1 7:e39a44de229a 71 command[8] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
4180_1 7:e39a44de229a 72
4180_1 7:e39a44de229a 73 writeCOMMAND(command, 9);
4180_1 7:e39a44de229a 74 }
4180_1 1:8b656995301f 75
4180_1 1:8b656995301f 76 //****************************************************************************************************
4180_1 3:9ba47197d94f 77 void uLCD_4DGL :: triangle(int x1, int y1 , int x2, int y2, int x3, int y3, int color) // draw a traingle
4180_1 3:9ba47197d94f 78 {
4180_1 1:8b656995301f 79 char command[15]= "";
4180_1 1:8b656995301f 80
4180_1 1:8b656995301f 81 command[0] = TRIANGLE;
4180_1 1:8b656995301f 82
4180_1 1:8b656995301f 83 command[1] = (x1 >> 8) & 0xFF;
4180_1 1:8b656995301f 84 command[2] = x1 & 0xFF;
4180_1 1:8b656995301f 85
4180_1 1:8b656995301f 86 command[3] = (y1 >> 8) & 0xFF;
4180_1 1:8b656995301f 87 command[4] = y1 & 0xFF;
4180_1 1:8b656995301f 88
4180_1 1:8b656995301f 89 command[5] = (x2 >> 8) & 0xFF;
4180_1 1:8b656995301f 90 command[6] = x2 & 0xFF;
4180_1 1:8b656995301f 91
4180_1 1:8b656995301f 92 command[7] = (y2 >> 8) & 0xFF;
4180_1 1:8b656995301f 93 command[8] = y2 & 0xFF;
4180_1 1:8b656995301f 94
4180_1 1:8b656995301f 95 command[9] = (x3 >> 8) & 0xFF;
4180_1 1:8b656995301f 96 command[10] = x3 & 0xFF;
4180_1 1:8b656995301f 97
4180_1 1:8b656995301f 98 command[11] = (y3 >> 8) & 0xFF;
4180_1 1:8b656995301f 99 command[12] = y3 & 0xFF;
4180_1 1:8b656995301f 100
4180_1 1:8b656995301f 101 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
4180_1 1:8b656995301f 102 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
4180_1 1:8b656995301f 103 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
4180_1 1:8b656995301f 104
4180_1 1:8b656995301f 105 command[13] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
4180_1 1:8b656995301f 106 command[14] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
4180_1 1:8b656995301f 107
4180_1 1:8b656995301f 108 writeCOMMAND(command, 15);
4180_1 1:8b656995301f 109 }
4180_1 1:8b656995301f 110
4180_1 1:8b656995301f 111 //****************************************************************************************************
4180_1 3:9ba47197d94f 112 void uLCD_4DGL :: line(int x1, int y1 , int x2, int y2, int color) // draw a line
4180_1 3:9ba47197d94f 113 {
4180_1 1:8b656995301f 114 char command[11]= "";
4180_1 1:8b656995301f 115
4180_1 1:8b656995301f 116 command[0] = LINE;
4180_1 1:8b656995301f 117
4180_1 1:8b656995301f 118 command[1] = (x1 >> 8) & 0xFF;
4180_1 1:8b656995301f 119 command[2] = x1 & 0xFF;
4180_1 1:8b656995301f 120
4180_1 1:8b656995301f 121 command[3] = (y1 >> 8) & 0xFF;
4180_1 1:8b656995301f 122 command[4] = y1 & 0xFF;
4180_1 1:8b656995301f 123
4180_1 1:8b656995301f 124 command[5] = (x2 >> 8) & 0xFF;
4180_1 1:8b656995301f 125 command[6] = x2 & 0xFF;
4180_1 1:8b656995301f 126
4180_1 1:8b656995301f 127 command[7] = (y2 >> 8) & 0xFF;
4180_1 1:8b656995301f 128 command[8] = y2 & 0xFF;
4180_1 1:8b656995301f 129
4180_1 1:8b656995301f 130 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
4180_1 1:8b656995301f 131 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
4180_1 1:8b656995301f 132 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
4180_1 1:8b656995301f 133
4180_1 1:8b656995301f 134 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
4180_1 1:8b656995301f 135 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
4180_1 1:8b656995301f 136
4180_1 1:8b656995301f 137 writeCOMMAND(command, 11);
4180_1 1:8b656995301f 138 }
4180_1 1:8b656995301f 139
4180_1 1:8b656995301f 140 //****************************************************************************************************
4180_1 3:9ba47197d94f 141 void uLCD_4DGL :: rectangle(int x1, int y1 , int x2, int y2, int color) // draw a rectangle
4180_1 3:9ba47197d94f 142 {
4180_1 1:8b656995301f 143 char command[11]= "";
4180_1 1:8b656995301f 144
4180_1 1:8b656995301f 145 command[0] = RECTANGLE;
4180_1 1:8b656995301f 146
4180_1 1:8b656995301f 147 command[1] = (x1 >> 8) & 0xFF;
4180_1 1:8b656995301f 148 command[2] = x1 & 0xFF;
4180_1 1:8b656995301f 149
4180_1 1:8b656995301f 150 command[3] = (y1 >> 8) & 0xFF;
4180_1 1:8b656995301f 151 command[4] = y1 & 0xFF;
4180_1 1:8b656995301f 152
4180_1 1:8b656995301f 153 command[5] = (x2 >> 8) & 0xFF;
4180_1 1:8b656995301f 154 command[6] = x2 & 0xFF;
4180_1 1:8b656995301f 155
4180_1 1:8b656995301f 156 command[7] = (y2 >> 8) & 0xFF;
4180_1 1:8b656995301f 157 command[8] = y2 & 0xFF;
4180_1 1:8b656995301f 158
4180_1 1:8b656995301f 159 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
4180_1 1:8b656995301f 160 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
4180_1 1:8b656995301f 161 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
4180_1 1:8b656995301f 162
4180_1 1:8b656995301f 163 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
4180_1 1:8b656995301f 164 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
4180_1 1:8b656995301f 165
4180_1 1:8b656995301f 166 writeCOMMAND(command, 11);
4180_1 1:8b656995301f 167 }
4180_1 1:8b656995301f 168
4180_1 1:8b656995301f 169 //****************************************************************************************************
4180_1 7:e39a44de229a 170 void uLCD_4DGL :: filled_rectangle(int x1, int y1 , int x2, int y2, int color) // draw a rectangle
4180_1 3:9ba47197d94f 171 {
4180_1 1:8b656995301f 172 char command[11]= "";
4180_1 1:8b656995301f 173
4180_1 7:e39a44de229a 174 command[0] = FRECTANGLE;
4180_1 1:8b656995301f 175
4180_1 7:e39a44de229a 176 command[1] = (x1 >> 8) & 0xFF;
4180_1 7:e39a44de229a 177 command[2] = x1 & 0xFF;
4180_1 1:8b656995301f 178
4180_1 7:e39a44de229a 179 command[3] = (y1 >> 8) & 0xFF;
4180_1 7:e39a44de229a 180 command[4] = y1 & 0xFF;
4180_1 1:8b656995301f 181
4180_1 7:e39a44de229a 182 command[5] = (x2 >> 8) & 0xFF;
4180_1 7:e39a44de229a 183 command[6] = x2 & 0xFF;
4180_1 1:8b656995301f 184
4180_1 7:e39a44de229a 185 command[7] = (y2 >> 8) & 0xFF;
4180_1 7:e39a44de229a 186 command[8] = y2 & 0xFF;
4180_1 1:8b656995301f 187
4180_1 1:8b656995301f 188 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
4180_1 1:8b656995301f 189 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
4180_1 1:8b656995301f 190 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
4180_1 1:8b656995301f 191
4180_1 1:8b656995301f 192 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
4180_1 1:8b656995301f 193 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
4180_1 1:8b656995301f 194
4180_1 1:8b656995301f 195 writeCOMMAND(command, 11);
4180_1 1:8b656995301f 196 }
4180_1 1:8b656995301f 197
4180_1 7:e39a44de229a 198
4180_1 7:e39a44de229a 199
4180_1 1:8b656995301f 200 //****************************************************************************************************
4180_1 3:9ba47197d94f 201 void uLCD_4DGL :: pixel(int x, int y, int color) // draw a pixel
4180_1 3:9ba47197d94f 202 {
4180_1 1:8b656995301f 203 char command[7]= "";
4180_1 1:8b656995301f 204
4180_1 1:8b656995301f 205 command[0] = PIXEL;
4180_1 1:8b656995301f 206
4180_1 1:8b656995301f 207 command[1] = (x >> 8) & 0xFF;
4180_1 1:8b656995301f 208 command[2] = x & 0xFF;
4180_1 1:8b656995301f 209
4180_1 1:8b656995301f 210 command[3] = (y >> 8) & 0xFF;
4180_1 1:8b656995301f 211 command[4] = y & 0xFF;
4180_1 1:8b656995301f 212
4180_1 1:8b656995301f 213 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
4180_1 1:8b656995301f 214 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
4180_1 1:8b656995301f 215 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
4180_1 1:8b656995301f 216
4180_1 1:8b656995301f 217 command[5] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
4180_1 1:8b656995301f 218 command[6] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
4180_1 1:8b656995301f 219
4180_1 1:8b656995301f 220 writeCOMMAND(command, 7);
4180_1 1:8b656995301f 221 }
4180_1 3:9ba47197d94f 222 //****************************************************************************************************
4180_1 3:9ba47197d94f 223 void uLCD_4DGL :: BLIT(int x, int y, int w, int h, int *colors) // draw a block of pixels
4180_1 3:9ba47197d94f 224 {
4180_1 3:9ba47197d94f 225 int red5, green6, blue5;
4180_1 7:e39a44de229a 226 writeBYTEfast('\x00');
4180_1 7:e39a44de229a 227 writeBYTEfast(BLITCOM);
4180_1 7:e39a44de229a 228 writeBYTEfast((x >> 8) & 0xFF);
4180_1 7:e39a44de229a 229 writeBYTEfast(x & 0xFF);
4180_1 7:e39a44de229a 230 writeBYTEfast((y >> 8) & 0xFF);
4180_1 7:e39a44de229a 231 writeBYTEfast(y & 0xFF);
4180_1 7:e39a44de229a 232 writeBYTEfast((w >> 8) & 0xFF);
4180_1 3:9ba47197d94f 233 writeBYTE(w & 0xFF);
4180_1 3:9ba47197d94f 234 writeBYTE((h >> 8) & 0xFF);
4180_1 3:9ba47197d94f 235 writeBYTE(h & 0xFF);
4180_1 4:74df7fc26fef 236 wait_ms(1);
4180_1 3:9ba47197d94f 237 for (int i=0; i<w*h; i++) {
4180_1 3:9ba47197d94f 238 red5 = (colors[i] >> (16 + 3)) & 0x1F; // get red on 5 bits
4180_1 3:9ba47197d94f 239 green6 = (colors[i] >> (8 + 2)) & 0x3F; // get green on 6 bits
4180_1 3:9ba47197d94f 240 blue5 = (colors[i] >> (0 + 3)) & 0x1F; // get blue on 5 bits
4180_1 4:74df7fc26fef 241 writeBYTEfast(((red5 << 3) + (green6 >> 3)) & 0xFF); // first part of 16 bits color
4180_1 4:74df7fc26fef 242 writeBYTEfast(((green6 << 5) + (blue5 >> 0)) & 0xFF); // second part of 16 bits color
4180_1 3:9ba47197d94f 243 }
4180_1 3:9ba47197d94f 244 int resp=0;
4180_1 3:9ba47197d94f 245 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
4180_1 3:9ba47197d94f 246 if (_cmd.readable()) resp = _cmd.getc(); // read response if any
4180_1 3:9ba47197d94f 247 switch (resp) {
4180_1 3:9ba47197d94f 248 case ACK : // if OK return 1
4180_1 3:9ba47197d94f 249 resp = 1;
4180_1 3:9ba47197d94f 250 break;
4180_1 3:9ba47197d94f 251 case NAK : // if NOK return -1
4180_1 3:9ba47197d94f 252 resp = -1;
4180_1 3:9ba47197d94f 253 break;
4180_1 3:9ba47197d94f 254 default :
4180_1 3:9ba47197d94f 255 resp = 0; // else return 0
4180_1 3:9ba47197d94f 256 break;
4180_1 3:9ba47197d94f 257 }
4180_1 3:9ba47197d94f 258 #if DEBUGMODE
4180_1 3:9ba47197d94f 259 pc.printf(" Answer received : %d\n",resp);
4180_1 3:9ba47197d94f 260 #endif
4180_1 1:8b656995301f 261
4180_1 3:9ba47197d94f 262 }
4180_1 1:8b656995301f 263 //******************************************************************************************************
4180_1 3:9ba47197d94f 264 int uLCD_4DGL :: read_pixel(int x, int y) // read screen info and populate data
4180_1 3:9ba47197d94f 265 {
4180_1 1:8b656995301f 266
4180_1 1:8b656995301f 267 char command[6]= "";
4180_1 1:8b656995301f 268 command[0] = 0xFF;
4180_1 1:8b656995301f 269 command[1] = READPIXEL;
4180_1 1:8b656995301f 270
4180_1 1:8b656995301f 271 command[2] = (x >> 8) & 0xFF;
4180_1 1:8b656995301f 272 command[3] = x & 0xFF;
4180_1 1:8b656995301f 273
4180_1 1:8b656995301f 274 command[4] = (y >> 8) & 0xFF;
4180_1 1:8b656995301f 275 command[5] = y & 0xFF;
4180_1 1:8b656995301f 276
4180_1 1:8b656995301f 277 int i, temp = 0, color = 0, resp = 0;
4180_1 1:8b656995301f 278 char response[2] = "";
4180_1 1:8b656995301f 279
4180_1 1:8b656995301f 280 freeBUFFER();
4180_1 1:8b656995301f 281
4180_1 1:8b656995301f 282 for (i = 0; i < 6; i++) { // send all chars to serial port
4180_1 1:8b656995301f 283 writeBYTE(command[i]);
4180_1 1:8b656995301f 284 }
4180_1 1:8b656995301f 285
4180_1 1:8b656995301f 286 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
4180_1 1:8b656995301f 287
4180_1 1:8b656995301f 288 while (_cmd.readable() && resp < ARRAY_SIZE(response)) {
4180_1 1:8b656995301f 289 temp = _cmd.getc();
4180_1 1:8b656995301f 290 response[resp++] = (char)temp;
4180_1 1:8b656995301f 291 }
4180_1 1:8b656995301f 292
4180_1 1:8b656995301f 293 color = ((response[0] << 8) + response[1]);
4180_1 1:8b656995301f 294
4180_1 1:8b656995301f 295 return color; // WARNING : this is 16bits color, not 24bits... need to be fixed
4180_1 1:8b656995301f 296 }
4180_1 1:8b656995301f 297
4180_1 1:8b656995301f 298
4180_1 1:8b656995301f 299 //****************************************************************************************************
4180_1 3:9ba47197d94f 300 void uLCD_4DGL :: pen_size(char mode) // set pen to SOLID or WIREFRAME
4180_1 3:9ba47197d94f 301 {
4180_1 1:8b656995301f 302 char command[2]= "";
4180_1 1:8b656995301f 303
4180_1 1:8b656995301f 304 command[0] = PENSIZE;
4180_1 1:8b656995301f 305 command[1] = mode;
4180_1 1:8b656995301f 306 writeCOMMAND(command, 2);
4180_1 1:8b656995301f 307 }
4180_1 4:74df7fc26fef 308
4180_1 6:b759b69cbaf9 309
4180_1 7:e39a44de229a 310