Reinaldo Cruz / 4DGLtest

4DGL library with slight changes. Did not want to commit to original library.

TFT_4DGL_Graphics.cpp@0:9cbbed69bc5b, 2014-10-22 (annotated)

Committer:
reinaldo422
Date:
Wed Oct 22 05:25:01 2014 +0000
Revision:
0:9cbbed69bc5b
4DGL library with slight changes made. Did not want to commit directly to library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
reinaldo422 0:9cbbed69bc5b 1 //
reinaldo422 0:9cbbed69bc5b 2 // TFT_4DGL is a class to drive 4D Systems TFT touch screens
reinaldo422 0:9cbbed69bc5b 3 //
reinaldo422 0:9cbbed69bc5b 4 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
reinaldo422 0:9cbbed69bc5b 5 //
reinaldo422 0:9cbbed69bc5b 6 // TFT_4DGL is free software: you can redistribute it and/or modify
reinaldo422 0:9cbbed69bc5b 7 // it under the terms of the GNU General Public License as published by
reinaldo422 0:9cbbed69bc5b 8 // the Free Software Foundation, either version 3 of the License, or
reinaldo422 0:9cbbed69bc5b 9 // (at your option) any later version.
reinaldo422 0:9cbbed69bc5b 10 //
reinaldo422 0:9cbbed69bc5b 11 // TFT_4DGL is distributed in the hope that it will be useful,
reinaldo422 0:9cbbed69bc5b 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
reinaldo422 0:9cbbed69bc5b 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
reinaldo422 0:9cbbed69bc5b 14 // GNU General Public License for more details.
reinaldo422 0:9cbbed69bc5b 15 //
reinaldo422 0:9cbbed69bc5b 16 // You should have received a copy of the GNU General Public License
reinaldo422 0:9cbbed69bc5b 17 // along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
reinaldo422 0:9cbbed69bc5b 18
reinaldo422 0:9cbbed69bc5b 19 #include "mbed.h"
reinaldo422 0:9cbbed69bc5b 20 #include "TFT_4DGL.h"
reinaldo422 0:9cbbed69bc5b 21
reinaldo422 0:9cbbed69bc5b 22
reinaldo422 0:9cbbed69bc5b 23 //****************************************************************************************************
reinaldo422 0:9cbbed69bc5b 24 void TFT_4DGL :: circle(int x, int y , int radius, int color) { // draw a circle in (x,y)
reinaldo422 0:9cbbed69bc5b 25 char command[9]= "";
reinaldo422 0:9cbbed69bc5b 26
reinaldo422 0:9cbbed69bc5b 27 command[0] = CIRCLE;
reinaldo422 0:9cbbed69bc5b 28
reinaldo422 0:9cbbed69bc5b 29 command[1] = (x >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 30 command[2] = x & 0xFF;
reinaldo422 0:9cbbed69bc5b 31
reinaldo422 0:9cbbed69bc5b 32 command[3] = (y >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 33 command[4] = y & 0xFF;
reinaldo422 0:9cbbed69bc5b 34
reinaldo422 0:9cbbed69bc5b 35 command[5] = (radius >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 36 command[6] = radius & 0xFF;
reinaldo422 0:9cbbed69bc5b 37
reinaldo422 0:9cbbed69bc5b 38 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
reinaldo422 0:9cbbed69bc5b 39 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
reinaldo422 0:9cbbed69bc5b 40 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
reinaldo422 0:9cbbed69bc5b 41
reinaldo422 0:9cbbed69bc5b 42 command[7] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
reinaldo422 0:9cbbed69bc5b 43 command[8] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
reinaldo422 0:9cbbed69bc5b 44
reinaldo422 0:9cbbed69bc5b 45 writeCOMMAND(command, 9);
reinaldo422 0:9cbbed69bc5b 46 }
reinaldo422 0:9cbbed69bc5b 47
reinaldo422 0:9cbbed69bc5b 48 //****************************************************************************************************
reinaldo422 0:9cbbed69bc5b 49 void TFT_4DGL :: triangle(int x1, int y1 , int x2, int y2, int x3, int y3, int color) { // draw a traingle
reinaldo422 0:9cbbed69bc5b 50 char command[15]= "";
reinaldo422 0:9cbbed69bc5b 51
reinaldo422 0:9cbbed69bc5b 52 command[0] = TRIANGLE;
reinaldo422 0:9cbbed69bc5b 53
reinaldo422 0:9cbbed69bc5b 54 command[1] = (x1 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 55 command[2] = x1 & 0xFF;
reinaldo422 0:9cbbed69bc5b 56
reinaldo422 0:9cbbed69bc5b 57 command[3] = (y1 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 58 command[4] = y1 & 0xFF;
reinaldo422 0:9cbbed69bc5b 59
reinaldo422 0:9cbbed69bc5b 60 command[5] = (x2 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 61 command[6] = x2 & 0xFF;
reinaldo422 0:9cbbed69bc5b 62
reinaldo422 0:9cbbed69bc5b 63 command[7] = (y2 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 64 command[8] = y2 & 0xFF;
reinaldo422 0:9cbbed69bc5b 65
reinaldo422 0:9cbbed69bc5b 66 command[9] = (x3 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 67 command[10] = x3 & 0xFF;
reinaldo422 0:9cbbed69bc5b 68
reinaldo422 0:9cbbed69bc5b 69 command[11] = (y3 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 70 command[12] = y3 & 0xFF;
reinaldo422 0:9cbbed69bc5b 71
reinaldo422 0:9cbbed69bc5b 72 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
reinaldo422 0:9cbbed69bc5b 73 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
reinaldo422 0:9cbbed69bc5b 74 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
reinaldo422 0:9cbbed69bc5b 75
reinaldo422 0:9cbbed69bc5b 76 command[13] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
reinaldo422 0:9cbbed69bc5b 77 command[14] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
reinaldo422 0:9cbbed69bc5b 78
reinaldo422 0:9cbbed69bc5b 79 writeCOMMAND(command, 15);
reinaldo422 0:9cbbed69bc5b 80 }
reinaldo422 0:9cbbed69bc5b 81
reinaldo422 0:9cbbed69bc5b 82 //****************************************************************************************************
reinaldo422 0:9cbbed69bc5b 83 void TFT_4DGL :: line(int x1, int y1 , int x2, int y2, int color) { // draw a line
reinaldo422 0:9cbbed69bc5b 84 char command[11]= "";
reinaldo422 0:9cbbed69bc5b 85
reinaldo422 0:9cbbed69bc5b 86 command[0] = LINE;
reinaldo422 0:9cbbed69bc5b 87
reinaldo422 0:9cbbed69bc5b 88 command[1] = (x1 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 89 command[2] = x1 & 0xFF;
reinaldo422 0:9cbbed69bc5b 90
reinaldo422 0:9cbbed69bc5b 91 command[3] = (y1 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 92 command[4] = y1 & 0xFF;
reinaldo422 0:9cbbed69bc5b 93
reinaldo422 0:9cbbed69bc5b 94 command[5] = (x2 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 95 command[6] = x2 & 0xFF;
reinaldo422 0:9cbbed69bc5b 96
reinaldo422 0:9cbbed69bc5b 97 command[7] = (y2 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 98 command[8] = y2 & 0xFF;
reinaldo422 0:9cbbed69bc5b 99
reinaldo422 0:9cbbed69bc5b 100 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
reinaldo422 0:9cbbed69bc5b 101 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
reinaldo422 0:9cbbed69bc5b 102 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
reinaldo422 0:9cbbed69bc5b 103
reinaldo422 0:9cbbed69bc5b 104 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
reinaldo422 0:9cbbed69bc5b 105 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
reinaldo422 0:9cbbed69bc5b 106
reinaldo422 0:9cbbed69bc5b 107 writeCOMMAND(command, 11);
reinaldo422 0:9cbbed69bc5b 108 }
reinaldo422 0:9cbbed69bc5b 109
reinaldo422 0:9cbbed69bc5b 110 //****************************************************************************************************
reinaldo422 0:9cbbed69bc5b 111 void TFT_4DGL :: rectangle(int x1, int y1 , int x2, int y2, int color) { // draw a rectangle
reinaldo422 0:9cbbed69bc5b 112 char command[11]= "";
reinaldo422 0:9cbbed69bc5b 113
reinaldo422 0:9cbbed69bc5b 114 command[0] = RECTANGLE;
reinaldo422 0:9cbbed69bc5b 115
reinaldo422 0:9cbbed69bc5b 116 command[1] = (x1 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 117 command[2] = x1 & 0xFF;
reinaldo422 0:9cbbed69bc5b 118
reinaldo422 0:9cbbed69bc5b 119 command[3] = (y1 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 120 command[4] = y1 & 0xFF;
reinaldo422 0:9cbbed69bc5b 121
reinaldo422 0:9cbbed69bc5b 122 command[5] = (x2 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 123 command[6] = x2 & 0xFF;
reinaldo422 0:9cbbed69bc5b 124
reinaldo422 0:9cbbed69bc5b 125 command[7] = (y2 >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 126 command[8] = y2 & 0xFF;
reinaldo422 0:9cbbed69bc5b 127
reinaldo422 0:9cbbed69bc5b 128 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
reinaldo422 0:9cbbed69bc5b 129 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
reinaldo422 0:9cbbed69bc5b 130 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
reinaldo422 0:9cbbed69bc5b 131
reinaldo422 0:9cbbed69bc5b 132 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
reinaldo422 0:9cbbed69bc5b 133 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
reinaldo422 0:9cbbed69bc5b 134
reinaldo422 0:9cbbed69bc5b 135 writeCOMMAND(command, 11);
reinaldo422 0:9cbbed69bc5b 136 }
reinaldo422 0:9cbbed69bc5b 137
reinaldo422 0:9cbbed69bc5b 138 //****************************************************************************************************
reinaldo422 0:9cbbed69bc5b 139 void TFT_4DGL :: ellipse(int x, int y , int radius_x, int radius_y, int color) { // draw an ellipse
reinaldo422 0:9cbbed69bc5b 140 char command[11]= "";
reinaldo422 0:9cbbed69bc5b 141
reinaldo422 0:9cbbed69bc5b 142 command[0] = ELLIPSE;
reinaldo422 0:9cbbed69bc5b 143
reinaldo422 0:9cbbed69bc5b 144 command[1] = (x >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 145 command[2] = x & 0xFF;
reinaldo422 0:9cbbed69bc5b 146
reinaldo422 0:9cbbed69bc5b 147 command[3] = (y >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 148 command[4] = y & 0xFF;
reinaldo422 0:9cbbed69bc5b 149
reinaldo422 0:9cbbed69bc5b 150 command[5] = (radius_x >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 151 command[6] = radius_x & 0xFF;
reinaldo422 0:9cbbed69bc5b 152
reinaldo422 0:9cbbed69bc5b 153 command[7] = (radius_y >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 154 command[8] = radius_y & 0xFF;
reinaldo422 0:9cbbed69bc5b 155
reinaldo422 0:9cbbed69bc5b 156 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
reinaldo422 0:9cbbed69bc5b 157 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
reinaldo422 0:9cbbed69bc5b 158 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
reinaldo422 0:9cbbed69bc5b 159
reinaldo422 0:9cbbed69bc5b 160 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
reinaldo422 0:9cbbed69bc5b 161 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
reinaldo422 0:9cbbed69bc5b 162
reinaldo422 0:9cbbed69bc5b 163 writeCOMMAND(command, 11);
reinaldo422 0:9cbbed69bc5b 164 }
reinaldo422 0:9cbbed69bc5b 165
reinaldo422 0:9cbbed69bc5b 166 //****************************************************************************************************
reinaldo422 0:9cbbed69bc5b 167 void TFT_4DGL :: pixel(int x, int y, int color) { // draw a pixel
reinaldo422 0:9cbbed69bc5b 168 char command[7]= "";
reinaldo422 0:9cbbed69bc5b 169
reinaldo422 0:9cbbed69bc5b 170 command[0] = PIXEL;
reinaldo422 0:9cbbed69bc5b 171
reinaldo422 0:9cbbed69bc5b 172 command[1] = (x >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 173 command[2] = x & 0xFF;
reinaldo422 0:9cbbed69bc5b 174
reinaldo422 0:9cbbed69bc5b 175 command[3] = (y >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 176 command[4] = y & 0xFF;
reinaldo422 0:9cbbed69bc5b 177
reinaldo422 0:9cbbed69bc5b 178 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
reinaldo422 0:9cbbed69bc5b 179 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
reinaldo422 0:9cbbed69bc5b 180 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
reinaldo422 0:9cbbed69bc5b 181
reinaldo422 0:9cbbed69bc5b 182 command[5] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
reinaldo422 0:9cbbed69bc5b 183 command[6] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
reinaldo422 0:9cbbed69bc5b 184
reinaldo422 0:9cbbed69bc5b 185 writeCOMMAND(command, 7);
reinaldo422 0:9cbbed69bc5b 186 }
reinaldo422 0:9cbbed69bc5b 187
reinaldo422 0:9cbbed69bc5b 188 //******************************************************************************************************
reinaldo422 0:9cbbed69bc5b 189 int TFT_4DGL :: read_pixel(int x, int y) { // read screen info and populate data
reinaldo422 0:9cbbed69bc5b 190
reinaldo422 0:9cbbed69bc5b 191 char command[5]= "";
reinaldo422 0:9cbbed69bc5b 192
reinaldo422 0:9cbbed69bc5b 193 command[0] = READPIXEL;
reinaldo422 0:9cbbed69bc5b 194
reinaldo422 0:9cbbed69bc5b 195 command[1] = (x >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 196 command[2] = x & 0xFF;
reinaldo422 0:9cbbed69bc5b 197
reinaldo422 0:9cbbed69bc5b 198 command[3] = (y >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 199 command[4] = y & 0xFF;
reinaldo422 0:9cbbed69bc5b 200
reinaldo422 0:9cbbed69bc5b 201 int i, temp = 0, color = 0, resp = 0;
reinaldo422 0:9cbbed69bc5b 202 char response[2] = "";
reinaldo422 0:9cbbed69bc5b 203
reinaldo422 0:9cbbed69bc5b 204 freeBUFFER();
reinaldo422 0:9cbbed69bc5b 205
reinaldo422 0:9cbbed69bc5b 206 for (i = 0; i < 5; i++) { // send all chars to serial port
reinaldo422 0:9cbbed69bc5b 207 writeBYTE(command[i]);
reinaldo422 0:9cbbed69bc5b 208 }
reinaldo422 0:9cbbed69bc5b 209
reinaldo422 0:9cbbed69bc5b 210 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
reinaldo422 0:9cbbed69bc5b 211
reinaldo422 0:9cbbed69bc5b 212 while (_cmd.readable()) {
reinaldo422 0:9cbbed69bc5b 213 temp = _cmd.getc();
reinaldo422 0:9cbbed69bc5b 214 response[resp++] = (char)temp;
reinaldo422 0:9cbbed69bc5b 215 }
reinaldo422 0:9cbbed69bc5b 216
reinaldo422 0:9cbbed69bc5b 217 color = ((response[0] << 8) + response[1]);
reinaldo422 0:9cbbed69bc5b 218
reinaldo422 0:9cbbed69bc5b 219 return color; // WARNING : this is 16bits color, not 24bits... need to be fixed
reinaldo422 0:9cbbed69bc5b 220 }
reinaldo422 0:9cbbed69bc5b 221
reinaldo422 0:9cbbed69bc5b 222 //******************************************************************************************************
reinaldo422 0:9cbbed69bc5b 223 void TFT_4DGL :: screen_copy(int xs, int ys , int xd, int yd , int width, int height) {
reinaldo422 0:9cbbed69bc5b 224
reinaldo422 0:9cbbed69bc5b 225 char command[13]= "";
reinaldo422 0:9cbbed69bc5b 226
reinaldo422 0:9cbbed69bc5b 227 command[0] = SCREENCOPY;
reinaldo422 0:9cbbed69bc5b 228
reinaldo422 0:9cbbed69bc5b 229 command[1] = (xs >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 230 command[2] = xs & 0xFF;
reinaldo422 0:9cbbed69bc5b 231
reinaldo422 0:9cbbed69bc5b 232 command[3] = (ys >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 233 command[4] = ys & 0xFF;
reinaldo422 0:9cbbed69bc5b 234
reinaldo422 0:9cbbed69bc5b 235 command[5] = (xd >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 236 command[6] = xd & 0xFF;
reinaldo422 0:9cbbed69bc5b 237
reinaldo422 0:9cbbed69bc5b 238 command[7] = (yd >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 239 command[8] = yd & 0xFF;
reinaldo422 0:9cbbed69bc5b 240
reinaldo422 0:9cbbed69bc5b 241 command[9] = (width >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 242 command[10] = width & 0xFF;
reinaldo422 0:9cbbed69bc5b 243
reinaldo422 0:9cbbed69bc5b 244 command[11] = (height >> 8) & 0xFF;
reinaldo422 0:9cbbed69bc5b 245 command[12] = height & 0xFF;
reinaldo422 0:9cbbed69bc5b 246
reinaldo422 0:9cbbed69bc5b 247 writeCOMMAND(command, 13);
reinaldo422 0:9cbbed69bc5b 248 }
reinaldo422 0:9cbbed69bc5b 249
reinaldo422 0:9cbbed69bc5b 250 //****************************************************************************************************
reinaldo422 0:9cbbed69bc5b 251 void TFT_4DGL :: pen_size(char mode) { // set pen to SOLID or WIREFRAME
reinaldo422 0:9cbbed69bc5b 252 char command[2]= "";
reinaldo422 0:9cbbed69bc5b 253
reinaldo422 0:9cbbed69bc5b 254 command[0] = PENSIZE;
reinaldo422 0:9cbbed69bc5b 255 command[1] = mode;
reinaldo422 0:9cbbed69bc5b 256
reinaldo422 0:9cbbed69bc5b 257 writeCOMMAND(command, 2);
reinaldo422 0:9cbbed69bc5b 258 }