Brandon Fairfield / 4DGL-uLCD-SE

for 4180 final project

Fork of 4DGL-uLCD-SE by jim hamblen

uLCD_4DGL_Graphics.cpp@8:9a943cbbad5b, 2015-04-22 (annotated)

Committer:
bkf34
Date:
Wed Apr 22 03:16:54 2015 +0000
Revision:
8:9a943cbbad5b
Parent:
7:e39a44de229a 
final;

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