SparkFun Electronics
Fork of the 4DGL-uLCD-SE library by Jim Hamblen.
Dependents: ulcd_demo ulcd_accel internet_clock 4180_Final_Project ... more
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4DGL-uLCD-SE
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jim hamblen
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uLCD_4DGL_Graphics.cpp
00001 // 00002 // uLCD_4DGL is a class to drive 4D Systems LCD screens 00003 // 00004 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr> 00005 // Modifed for Goldelox processor <2013> Jim Hamblen 00006 // 00007 // uLCD_4DGL is free software: you can redistribute it and/or modify 00008 // it under the terms of the GNU General Public License as published by 00009 // the Free Software Foundation, either version 3 of the License, or 00010 // (at your option) any later version. 00011 // 00012 // uLCD_4DGL is distributed in the hope that it will be useful, 00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 // GNU General Public License for more details. 00016 // 00017 // You should have received a copy of the GNU General Public License 00018 // along with uLCD_4DGL. If not, see <http://www.gnu.org/licenses/>. 00019 00020 #include "mbed.h" 00021 #include "uLCD_4DGL.h" 00022 00023 #define ARRAY_SIZE(X) sizeof(X)/sizeof(X[0]) 00024 00025 //**************************************************************************************************** 00026 void uLCD_4DGL :: circle(int x, int y , int radius, int color) // draw a circle in (x,y) 00027 { 00028 char command[9]= ""; 00029 00030 command[0] = CIRCLE; 00031 00032 command[1] = (x >> 8) & 0xFF; 00033 command[2] = x & 0xFF; 00034 00035 command[3] = (y >> 8) & 0xFF; 00036 command[4] = y & 0xFF; 00037 00038 command[5] = (radius >> 8) & 0xFF; 00039 command[6] = radius & 0xFF; 00040 00041 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits 00042 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits 00043 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits 00044 00045 command[7] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color 00046 command[8] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color 00047 00048 writeCOMMAND(command, 9); 00049 } 00050 //**************************************************************************************************** 00051 void uLCD_4DGL :: filled_circle(int x, int y , int radius, int color) // draw a circle in (x,y) 00052 { 00053 char command[9]= ""; 00054 00055 command[0] = FCIRCLE; 00056 00057 command[1] = (x >> 8) & 0xFF; 00058 command[2] = x & 0xFF; 00059 00060 command[3] = (y >> 8) & 0xFF; 00061 command[4] = y & 0xFF; 00062 00063 command[5] = (radius >> 8) & 0xFF; 00064 command[6] = radius & 0xFF; 00065 00066 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits 00067 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits 00068 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits 00069 00070 command[7] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color 00071 command[8] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color 00072 00073 writeCOMMAND(command, 9); 00074 } 00075 00076 //**************************************************************************************************** 00077 void uLCD_4DGL :: triangle(int x1, int y1 , int x2, int y2, int x3, int y3, int color) // draw a traingle 00078 { 00079 char command[15]= ""; 00080 00081 command[0] = TRIANGLE; 00082 00083 command[1] = (x1 >> 8) & 0xFF; 00084 command[2] = x1 & 0xFF; 00085 00086 command[3] = (y1 >> 8) & 0xFF; 00087 command[4] = y1 & 0xFF; 00088 00089 command[5] = (x2 >> 8) & 0xFF; 00090 command[6] = x2 & 0xFF; 00091 00092 command[7] = (y2 >> 8) & 0xFF; 00093 command[8] = y2 & 0xFF; 00094 00095 command[9] = (x3 >> 8) & 0xFF; 00096 command[10] = x3 & 0xFF; 00097 00098 command[11] = (y3 >> 8) & 0xFF; 00099 command[12] = y3 & 0xFF; 00100 00101 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits 00102 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits 00103 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits 00104 00105 command[13] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color 00106 command[14] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color 00107 00108 writeCOMMAND(command, 15); 00109 } 00110 00111 //**************************************************************************************************** 00112 void uLCD_4DGL :: line(int x1, int y1 , int x2, int y2, int color) // draw a line 00113 { 00114 char command[11]= ""; 00115 00116 command[0] = LINE; 00117 00118 command[1] = (x1 >> 8) & 0xFF; 00119 command[2] = x1 & 0xFF; 00120 00121 command[3] = (y1 >> 8) & 0xFF; 00122 command[4] = y1 & 0xFF; 00123 00124 command[5] = (x2 >> 8) & 0xFF; 00125 command[6] = x2 & 0xFF; 00126 00127 command[7] = (y2 >> 8) & 0xFF; 00128 command[8] = y2 & 0xFF; 00129 00130 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits 00131 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits 00132 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits 00133 00134 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color 00135 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color 00136 00137 writeCOMMAND(command, 11); 00138 } 00139 00140 //**************************************************************************************************** 00141 void uLCD_4DGL :: rectangle(int x1, int y1 , int x2, int y2, int color) // draw a rectangle 00142 { 00143 char command[11]= ""; 00144 00145 command[0] = RECTANGLE; 00146 00147 command[1] = (x1 >> 8) & 0xFF; 00148 command[2] = x1 & 0xFF; 00149 00150 command[3] = (y1 >> 8) & 0xFF; 00151 command[4] = y1 & 0xFF; 00152 00153 command[5] = (x2 >> 8) & 0xFF; 00154 command[6] = x2 & 0xFF; 00155 00156 command[7] = (y2 >> 8) & 0xFF; 00157 command[8] = y2 & 0xFF; 00158 00159 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits 00160 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits 00161 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits 00162 00163 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color 00164 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color 00165 00166 writeCOMMAND(command, 11); 00167 } 00168 00169 //**************************************************************************************************** 00170 void uLCD_4DGL :: filled_rectangle(int x1, int y1 , int x2, int y2, int color) // draw a rectangle 00171 { 00172 char command[11]= ""; 00173 00174 command[0] = FRECTANGLE; 00175 00176 command[1] = (x1 >> 8) & 0xFF; 00177 command[2] = x1 & 0xFF; 00178 00179 command[3] = (y1 >> 8) & 0xFF; 00180 command[4] = y1 & 0xFF; 00181 00182 command[5] = (x2 >> 8) & 0xFF; 00183 command[6] = x2 & 0xFF; 00184 00185 command[7] = (y2 >> 8) & 0xFF; 00186 command[8] = y2 & 0xFF; 00187 00188 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits 00189 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits 00190 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits 00191 00192 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color 00193 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color 00194 00195 writeCOMMAND(command, 11); 00196 } 00197 00198 00199 00200 //**************************************************************************************************** 00201 void uLCD_4DGL :: pixel(int x, int y, int color) // draw a pixel 00202 { 00203 char command[7]= ""; 00204 00205 command[0] = PIXEL; 00206 00207 command[1] = (x >> 8) & 0xFF; 00208 command[2] = x & 0xFF; 00209 00210 command[3] = (y >> 8) & 0xFF; 00211 command[4] = y & 0xFF; 00212 00213 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits 00214 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits 00215 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits 00216 00217 command[5] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color 00218 command[6] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color 00219 00220 writeCOMMAND(command, 7); 00221 } 00222 //**************************************************************************************************** 00223 void uLCD_4DGL :: BLIT(int x, int y, int w, int h, int *colors) // draw a block of pixels 00224 { 00225 int red5, green6, blue5; 00226 writeBYTEfast('\x00'); 00227 writeBYTEfast(BLITCOM); 00228 writeBYTEfast((x >> 8) & 0xFF); 00229 writeBYTEfast(x & 0xFF); 00230 writeBYTEfast((y >> 8) & 0xFF); 00231 writeBYTEfast(y & 0xFF); 00232 writeBYTEfast((w >> 8) & 0xFF); 00233 writeBYTE(w & 0xFF); 00234 writeBYTE((h >> 8) & 0xFF); 00235 writeBYTE(h & 0xFF); 00236 wait_ms(1); 00237 for (int i=0; i<w*h; i++) { 00238 red5 = (colors[i] >> (16 + 3)) & 0x1F; // get red on 5 bits 00239 green6 = (colors[i] >> (8 + 2)) & 0x3F; // get green on 6 bits 00240 blue5 = (colors[i] >> (0 + 3)) & 0x1F; // get blue on 5 bits 00241 writeBYTEfast(((red5 << 3) + (green6 >> 3)) & 0xFF); // first part of 16 bits color 00242 writeBYTEfast(((green6 << 5) + (blue5 >> 0)) & 0xFF); // second part of 16 bits color 00243 } 00244 int resp=0; 00245 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer 00246 if (_cmd.readable()) resp = _cmd.getc(); // read response if any 00247 switch (resp) { 00248 case ACK : // if OK return 1 00249 resp = 1; 00250 break; 00251 case NAK : // if NOK return -1 00252 resp = -1; 00253 break; 00254 default : 00255 resp = 0; // else return 0 00256 break; 00257 } 00258 #if DEBUGMODE 00259 pc.printf(" Answer received : %d\n",resp); 00260 #endif 00261 00262 } 00263 //****************************************************************************************************** 00264 int uLCD_4DGL :: read_pixel(int x, int y) // read screen info and populate data 00265 { 00266 00267 char command[6]= ""; 00268 command[0] = 0xFF; 00269 command[1] = READPIXEL; 00270 00271 command[2] = (x >> 8) & 0xFF; 00272 command[3] = x & 0xFF; 00273 00274 command[4] = (y >> 8) & 0xFF; 00275 command[5] = y & 0xFF; 00276 00277 int i, temp = 0, color = 0, resp = 0; 00278 char response[2] = ""; 00279 00280 freeBUFFER(); 00281 00282 for (i = 0; i < 6; i++) { // send all chars to serial port 00283 writeBYTE(command[i]); 00284 } 00285 00286 while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer 00287 00288 while (_cmd.readable() && resp < ARRAY_SIZE(response)) { 00289 temp = _cmd.getc(); 00290 response[resp++] = (char)temp; 00291 } 00292 00293 color = ((response[0] << 8) + response[1]); 00294 00295 return color; // WARNING : this is 16bits color, not 24bits... need to be fixed 00296 } 00297 00298 00299 //**************************************************************************************************** 00300 void uLCD_4DGL :: pen_size(char mode) // set pen to SOLID or WIREFRAME 00301 { 00302 char command[2]= ""; 00303 00304 command[0] = PENSIZE; 00305 command[1] = mode; 00306 writeCOMMAND(command, 2); 00307 } 00308 00309 00310
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