Coby Lu / 4DGL

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Dependents:   snake

Fork of 4DGL by Stephane ROCHON

TFT_4DGL_Graphics.cpp@9:4b25d5413a06, 2012-10-11 (annotated)

Committer:
lucoby
Date:
Thu Oct 11 18:54:20 2012 +0000
Revision:
9:4b25d5413a06
Parent:
7:38db58dc6f4d 
n/a

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lucoby 9:4b25d5413a06 1 //
lucoby 9:4b25d5413a06 2 // TFT_4DGL is a class to drive 4D Systems TFT touch screens
lucoby 9:4b25d5413a06 3 //
lucoby 9:4b25d5413a06 4 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
lucoby 9:4b25d5413a06 5 //
lucoby 9:4b25d5413a06 6 // TFT_4DGL is free software: you can redistribute it and/or modify
lucoby 9:4b25d5413a06 7 // it under the terms of the GNU General Public License as published by
lucoby 9:4b25d5413a06 8 // the Free Software Foundation, either version 3 of the License, or
lucoby 9:4b25d5413a06 9 // (at your option) any later version.
lucoby 9:4b25d5413a06 10 //
lucoby 9:4b25d5413a06 11 // TFT_4DGL is distributed in the hope that it will be useful,
lucoby 9:4b25d5413a06 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
lucoby 9:4b25d5413a06 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
lucoby 9:4b25d5413a06 14 // GNU General Public License for more details.
lucoby 9:4b25d5413a06 15 //
lucoby 9:4b25d5413a06 16 // You should have received a copy of the GNU General Public License
lucoby 9:4b25d5413a06 17 // along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
lucoby 9:4b25d5413a06 18
lucoby 9:4b25d5413a06 19 #include "mbed.h"
lucoby 9:4b25d5413a06 20 #include "TFT_4DGL.h"
lucoby 9:4b25d5413a06 21
lucoby 9:4b25d5413a06 22
lucoby 9:4b25d5413a06 23 //****************************************************************************************************
lucoby 9:4b25d5413a06 24 void TFT_4DGL :: circle(int x, int y , int radius, int color) { // draw a circle in (x,y)
lucoby 9:4b25d5413a06 25 char command[9]= "";
lucoby 9:4b25d5413a06 26
lucoby 9:4b25d5413a06 27 command[0] = CIRCLE;
lucoby 9:4b25d5413a06 28
lucoby 9:4b25d5413a06 29 command[1] = (x >> 8) & 0xFF;
lucoby 9:4b25d5413a06 30 command[2] = x & 0xFF;
lucoby 9:4b25d5413a06 31
lucoby 9:4b25d5413a06 32 command[3] = (y >> 8) & 0xFF;
lucoby 9:4b25d5413a06 33 command[4] = y & 0xFF;
lucoby 9:4b25d5413a06 34
lucoby 9:4b25d5413a06 35 command[5] = (radius >> 8) & 0xFF;
lucoby 9:4b25d5413a06 36 command[6] = radius & 0xFF;
lucoby 9:4b25d5413a06 37
lucoby 9:4b25d5413a06 38 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
lucoby 9:4b25d5413a06 39 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
lucoby 9:4b25d5413a06 40 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
lucoby 9:4b25d5413a06 41
lucoby 9:4b25d5413a06 42 command[7] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
lucoby 9:4b25d5413a06 43 command[8] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
lucoby 9:4b25d5413a06 44
lucoby 9:4b25d5413a06 45 writeCOMMAND(command, 9);
lucoby 9:4b25d5413a06 46 }
lucoby 9:4b25d5413a06 47
lucoby 9:4b25d5413a06 48 //****************************************************************************************************
lucoby 9:4b25d5413a06 49 void TFT_4DGL :: triangle(int x1, int y1 , int x2, int y2, int x3, int y3, int color) { // draw a traingle
lucoby 9:4b25d5413a06 50 char command[15]= "";
lucoby 9:4b25d5413a06 51
lucoby 9:4b25d5413a06 52 command[0] = TRIANGLE;
lucoby 9:4b25d5413a06 53
lucoby 9:4b25d5413a06 54 command[1] = (x1 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 55 command[2] = x1 & 0xFF;
lucoby 9:4b25d5413a06 56
lucoby 9:4b25d5413a06 57 command[3] = (y1 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 58 command[4] = y1 & 0xFF;
lucoby 9:4b25d5413a06 59
lucoby 9:4b25d5413a06 60 command[5] = (x2 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 61 command[6] = x2 & 0xFF;
lucoby 9:4b25d5413a06 62
lucoby 9:4b25d5413a06 63 command[7] = (y2 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 64 command[8] = y2 & 0xFF;
lucoby 9:4b25d5413a06 65
lucoby 9:4b25d5413a06 66 command[9] = (x3 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 67 command[10] = x3 & 0xFF;
lucoby 9:4b25d5413a06 68
lucoby 9:4b25d5413a06 69 command[11] = (y3 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 70 command[12] = y3 & 0xFF;
lucoby 9:4b25d5413a06 71
lucoby 9:4b25d5413a06 72 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
lucoby 9:4b25d5413a06 73 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
lucoby 9:4b25d5413a06 74 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
lucoby 9:4b25d5413a06 75
lucoby 9:4b25d5413a06 76 command[13] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
lucoby 9:4b25d5413a06 77 command[14] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
lucoby 9:4b25d5413a06 78
lucoby 9:4b25d5413a06 79 writeCOMMAND(command, 15);
lucoby 9:4b25d5413a06 80 }
lucoby 9:4b25d5413a06 81
lucoby 9:4b25d5413a06 82 //****************************************************************************************************
lucoby 9:4b25d5413a06 83 void TFT_4DGL :: line(int x1, int y1 , int x2, int y2, int color) { // draw a line
lucoby 9:4b25d5413a06 84 char command[11]= "";
lucoby 9:4b25d5413a06 85
lucoby 9:4b25d5413a06 86 command[0] = LINE;
lucoby 9:4b25d5413a06 87
lucoby 9:4b25d5413a06 88 command[1] = (x1 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 89 command[2] = x1 & 0xFF;
lucoby 9:4b25d5413a06 90
lucoby 9:4b25d5413a06 91 command[3] = (y1 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 92 command[4] = y1 & 0xFF;
lucoby 9:4b25d5413a06 93
lucoby 9:4b25d5413a06 94 command[5] = (x2 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 95 command[6] = x2 & 0xFF;
lucoby 9:4b25d5413a06 96
lucoby 9:4b25d5413a06 97 command[7] = (y2 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 98 command[8] = y2 & 0xFF;
lucoby 9:4b25d5413a06 99
lucoby 9:4b25d5413a06 100 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
lucoby 9:4b25d5413a06 101 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
lucoby 9:4b25d5413a06 102 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
lucoby 9:4b25d5413a06 103
lucoby 9:4b25d5413a06 104 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
lucoby 9:4b25d5413a06 105 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
lucoby 9:4b25d5413a06 106
lucoby 9:4b25d5413a06 107 writeCOMMAND(command, 11);
lucoby 9:4b25d5413a06 108 }
lucoby 9:4b25d5413a06 109
lucoby 9:4b25d5413a06 110 //****************************************************************************************************
lucoby 9:4b25d5413a06 111 void TFT_4DGL :: rectangle(int x1, int y1 , int x2, int y2, int color) { // draw a rectangle
lucoby 9:4b25d5413a06 112 char command[11]= "";
lucoby 9:4b25d5413a06 113
lucoby 9:4b25d5413a06 114 command[0] = RECTANGLE;
lucoby 9:4b25d5413a06 115
lucoby 9:4b25d5413a06 116 command[1] = (x1 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 117 command[2] = x1 & 0xFF;
lucoby 9:4b25d5413a06 118
lucoby 9:4b25d5413a06 119 command[3] = (y1 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 120 command[4] = y1 & 0xFF;
lucoby 9:4b25d5413a06 121
lucoby 9:4b25d5413a06 122 command[5] = (x2 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 123 command[6] = x2 & 0xFF;
lucoby 9:4b25d5413a06 124
lucoby 9:4b25d5413a06 125 command[7] = (y2 >> 8) & 0xFF;
lucoby 9:4b25d5413a06 126 command[8] = y2 & 0xFF;
lucoby 9:4b25d5413a06 127
lucoby 9:4b25d5413a06 128 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
lucoby 9:4b25d5413a06 129 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
lucoby 9:4b25d5413a06 130 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
lucoby 9:4b25d5413a06 131
lucoby 9:4b25d5413a06 132 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
lucoby 9:4b25d5413a06 133 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
lucoby 9:4b25d5413a06 134
lucoby 9:4b25d5413a06 135 writeCOMMAND(command, 11);
lucoby 9:4b25d5413a06 136 }
lucoby 9:4b25d5413a06 137
lucoby 9:4b25d5413a06 138 //****************************************************************************************************
lucoby 9:4b25d5413a06 139 void TFT_4DGL :: ellipse(int x, int y , int radius_x, int radius_y, int color) { // draw an ellipse
lucoby 9:4b25d5413a06 140 char command[11]= "";
lucoby 9:4b25d5413a06 141
lucoby 9:4b25d5413a06 142 command[0] = ELLIPSE;
lucoby 9:4b25d5413a06 143
lucoby 9:4b25d5413a06 144 command[1] = (x >> 8) & 0xFF;
lucoby 9:4b25d5413a06 145 command[2] = x & 0xFF;
lucoby 9:4b25d5413a06 146
lucoby 9:4b25d5413a06 147 command[3] = (y >> 8) & 0xFF;
lucoby 9:4b25d5413a06 148 command[4] = y & 0xFF;
lucoby 9:4b25d5413a06 149
lucoby 9:4b25d5413a06 150 command[5] = (radius_x >> 8) & 0xFF;
lucoby 9:4b25d5413a06 151 command[6] = radius_x & 0xFF;
lucoby 9:4b25d5413a06 152
lucoby 9:4b25d5413a06 153 command[7] = (radius_y >> 8) & 0xFF;
lucoby 9:4b25d5413a06 154 command[8] = radius_y & 0xFF;
lucoby 9:4b25d5413a06 155
lucoby 9:4b25d5413a06 156 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
lucoby 9:4b25d5413a06 157 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
lucoby 9:4b25d5413a06 158 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
lucoby 9:4b25d5413a06 159
lucoby 9:4b25d5413a06 160 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
lucoby 9:4b25d5413a06 161 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
lucoby 9:4b25d5413a06 162
lucoby 9:4b25d5413a06 163 writeCOMMAND(command, 11);
lucoby 9:4b25d5413a06 164 }
lucoby 9:4b25d5413a06 165
lucoby 9:4b25d5413a06 166 //****************************************************************************************************
lucoby 9:4b25d5413a06 167 void TFT_4DGL :: pixel(int x, int y, int color) { // draw a pixel
lucoby 9:4b25d5413a06 168 char command[7]= "";
lucoby 9:4b25d5413a06 169
lucoby 9:4b25d5413a06 170 command[0] = PIXEL;
lucoby 9:4b25d5413a06 171
lucoby 9:4b25d5413a06 172 command[1] = (x >> 8) & 0xFF;
lucoby 9:4b25d5413a06 173 command[2] = x & 0xFF;
lucoby 9:4b25d5413a06 174
lucoby 9:4b25d5413a06 175 command[3] = (y >> 8) & 0xFF;
lucoby 9:4b25d5413a06 176 command[4] = y & 0xFF;
lucoby 9:4b25d5413a06 177
lucoby 9:4b25d5413a06 178 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
lucoby 9:4b25d5413a06 179 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
lucoby 9:4b25d5413a06 180 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
lucoby 9:4b25d5413a06 181
lucoby 9:4b25d5413a06 182 command[5] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
lucoby 9:4b25d5413a06 183 command[6] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
lucoby 9:4b25d5413a06 184
lucoby 9:4b25d5413a06 185 writeCOMMAND(command, 7);
lucoby 9:4b25d5413a06 186 }
lucoby 9:4b25d5413a06 187
lucoby 9:4b25d5413a06 188 //******************************************************************************************************
lucoby 9:4b25d5413a06 189 int TFT_4DGL :: read_pixel(int x, int y) { // read screen info and populate data
lucoby 9:4b25d5413a06 190
lucoby 9:4b25d5413a06 191 char command[5]= "";
lucoby 9:4b25d5413a06 192
lucoby 9:4b25d5413a06 193 command[0] = READPIXEL;
lucoby 9:4b25d5413a06 194
lucoby 9:4b25d5413a06 195 command[1] = (x >> 8) & 0xFF;
lucoby 9:4b25d5413a06 196 command[2] = x & 0xFF;
lucoby 9:4b25d5413a06 197
lucoby 9:4b25d5413a06 198 command[3] = (y >> 8) & 0xFF;
lucoby 9:4b25d5413a06 199 command[4] = y & 0xFF;
lucoby 9:4b25d5413a06 200
lucoby 9:4b25d5413a06 201 int i, temp = 0, color = 0, resp = 0;
lucoby 9:4b25d5413a06 202 char response[2] = "";
lucoby 9:4b25d5413a06 203
lucoby 9:4b25d5413a06 204 freeBUFFER();
lucoby 9:4b25d5413a06 205
lucoby 9:4b25d5413a06 206 for (i = 0; i < 5; i++) { // send all chars to serial port
lucoby 9:4b25d5413a06 207 writeBYTE(command[i]);
lucoby 9:4b25d5413a06 208 }
lucoby 9:4b25d5413a06 209
lucoby 9:4b25d5413a06 210 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
lucoby 9:4b25d5413a06 211
lucoby 9:4b25d5413a06 212 while (_cmd.readable()) {
lucoby 9:4b25d5413a06 213 temp = _cmd.getc();
lucoby 9:4b25d5413a06 214 response[resp++] = (char)temp;
lucoby 9:4b25d5413a06 215 }
lucoby 9:4b25d5413a06 216
lucoby 9:4b25d5413a06 217 color = ((response[0] << 8) + response[1]);
lucoby 9:4b25d5413a06 218
lucoby 9:4b25d5413a06 219 return color; // WARNING : this is 16bits color, not 24bits... need to be fixed
lucoby 9:4b25d5413a06 220 }
lucoby 9:4b25d5413a06 221
lucoby 9:4b25d5413a06 222 //******************************************************************************************************
lucoby 9:4b25d5413a06 223 void TFT_4DGL :: screen_copy(int xs, int ys , int xd, int yd , int width, int height) {
lucoby 9:4b25d5413a06 224
lucoby 9:4b25d5413a06 225 char command[13]= "";
lucoby 9:4b25d5413a06 226
lucoby 9:4b25d5413a06 227 command[0] = SCREENCOPY;
lucoby 9:4b25d5413a06 228
lucoby 9:4b25d5413a06 229 command[1] = (xs >> 8) & 0xFF;
lucoby 9:4b25d5413a06 230 command[2] = xs & 0xFF;
lucoby 9:4b25d5413a06 231
lucoby 9:4b25d5413a06 232 command[3] = (ys >> 8) & 0xFF;
lucoby 9:4b25d5413a06 233 command[4] = ys & 0xFF;
lucoby 9:4b25d5413a06 234
lucoby 9:4b25d5413a06 235 command[5] = (xd >> 8) & 0xFF;
lucoby 9:4b25d5413a06 236 command[6] = xd & 0xFF;
lucoby 9:4b25d5413a06 237
lucoby 9:4b25d5413a06 238 command[7] = (yd >> 8) & 0xFF;
lucoby 9:4b25d5413a06 239 command[8] = yd & 0xFF;
lucoby 9:4b25d5413a06 240
lucoby 9:4b25d5413a06 241 command[9] = (width >> 8) & 0xFF;
lucoby 9:4b25d5413a06 242 command[10] = width & 0xFF;
lucoby 9:4b25d5413a06 243
lucoby 9:4b25d5413a06 244 command[11] = (height >> 8) & 0xFF;
lucoby 9:4b25d5413a06 245 command[12] = height & 0xFF;
lucoby 9:4b25d5413a06 246
lucoby 9:4b25d5413a06 247 writeCOMMAND(command, 13);
lucoby 9:4b25d5413a06 248 }
lucoby 9:4b25d5413a06 249
lucoby 9:4b25d5413a06 250 //****************************************************************************************************
lucoby 9:4b25d5413a06 251 void TFT_4DGL :: pen_size(char mode) { // set pen to SOLID or WIREFRAME
lucoby 9:4b25d5413a06 252 char command[2]= "";
lucoby 9:4b25d5413a06 253
lucoby 9:4b25d5413a06 254 command[0] = PENSIZE;
lucoby 9:4b25d5413a06 255 command[1] = mode;
lucoby 9:4b25d5413a06 256
lucoby 9:4b25d5413a06 257 writeCOMMAND(command, 2);
Kerpower 0:1102d253f057 258 }