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Circular limit cycle - 2D nonlinear attractor
Diff: TFT_4DGL_Graphics.cpp
- Revision:
- 0:ba94dffa2c21
diff -r 000000000000 -r ba94dffa2c21 TFT_4DGL_Graphics.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TFT_4DGL_Graphics.cpp Tue Feb 08 21:33:11 2011 +0000 @@ -0,0 +1,400 @@ +// +// TFT_4DGL is a class to drive 4D Systems TFT touch screens +// +// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr> +// +// TFT_4DGL is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// TFT_4DGL is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>. + +#include "mbed.h" +#include "TFT_4DGL.h" + + +//**************************************************************************************************** +void TFT_4DGL :: circle(int x, int y , int radius, int color) { // draw a circle in (x,y) + char command[9]= ""; + + command[0] = CIRCLE; + + command[1] = (x >> 8) & 0xFF; + command[2] = x & 0xFF; + + command[3] = (y >> 8) & 0xFF; + command[4] = y & 0xFF; + + command[5] = (radius >> 8) & 0xFF; + command[6] = radius & 0xFF; + + int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits + int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits + int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits + + command[7] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color + command[8] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color + + writeCOMMAND(command, 9); +} + +//**************************************************************************************************** +void TFT_4DGL :: triangle(int x1, int y1 , int x2, int y2, int x3, int y3, int color) { // draw a traingle + char command[15]= ""; + + command[0] = TRIANGLE; + + command[1] = (x1 >> 8) & 0xFF; + command[2] = x1 & 0xFF; + + command[3] = (y1 >> 8) & 0xFF; + command[4] = y1 & 0xFF; + + command[5] = (x2 >> 8) & 0xFF; + command[6] = x2 & 0xFF; + + command[7] = (y2 >> 8) & 0xFF; + command[8] = y2 & 0xFF; + + command[9] = (x3 >> 8) & 0xFF; + command[10] = x3 & 0xFF; + + command[11] = (y3 >> 8) & 0xFF; + command[12] = y3 & 0xFF; + + int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits + int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits + int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits + + command[13] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color + command[14] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color + + writeCOMMAND(command, 15); +} + +//**************************************************************************************************** +void TFT_4DGL :: line(int x1, int y1 , int x2, int y2, int color) { // draw a line + char command[11]= ""; + + command[0] = LINE; + + command[1] = (x1 >> 8) & 0xFF; + command[2] = x1 & 0xFF; + + command[3] = (y1 >> 8) & 0xFF; + command[4] = y1 & 0xFF; + + command[5] = (x2 >> 8) & 0xFF; + command[6] = x2 & 0xFF; + + command[7] = (y2 >> 8) & 0xFF; + command[8] = y2 & 0xFF; + + int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits + int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits + int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits + + command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color + command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color + + writeCOMMAND(command, 11); +} + +//**************************************************************************************************** +void TFT_4DGL :: rectangle(int x1, int y1 , int x2, int y2, int color) { // draw a rectangle + char command[11]= ""; + + command[0] = RECTANGLE; + + command[1] = (x1 >> 8) & 0xFF; + command[2] = x1 & 0xFF; + + command[3] = (y1 >> 8) & 0xFF; + command[4] = y1 & 0xFF; + + command[5] = (x2 >> 8) & 0xFF; + command[6] = x2 & 0xFF; + + command[7] = (y2 >> 8) & 0xFF; + command[8] = y2 & 0xFF; + + int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits + int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits + int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits + + command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color + command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color + + writeCOMMAND(command, 11); +} + +//**************************************************************************************************** +void TFT_4DGL :: ellipse(int x, int y , int radius_x, int radius_y, int color) { // draw an ellipse + char command[11]= ""; + + command[0] = ELLIPSE; + + command[1] = (x >> 8) & 0xFF; + command[2] = x & 0xFF; + + command[3] = (y >> 8) & 0xFF; + command[4] = y & 0xFF; + + command[5] = (radius_x >> 8) & 0xFF; + command[6] = radius_x & 0xFF; + + command[7] = (radius_y >> 8) & 0xFF; + command[8] = radius_y & 0xFF; + + int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits + int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits + int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits + + command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color + command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color + + writeCOMMAND(command, 11); +} + +//**************************************************************************************************** +void TFT_4DGL :: pixel(int x, int y, int color) { // draw a pixel + char command[7]= ""; + + command[0] = PIXEL; + + command[1] = (x >> 8) & 0xFF; + command[2] = x & 0xFF; + + command[3] = (y >> 8) & 0xFF; + command[4] = y & 0xFF; + + int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits + int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits + int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits + + command[5] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color + command[6] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color + + writeCOMMAND(command, 7); +} + +//****************************************************************************************************** +int TFT_4DGL :: read_pixel(int x, int y) { // read screen info and populate data + + char command[5]= ""; + + command[0] = READPIXEL; + + command[1] = (x >> 8) & 0xFF; + command[2] = x & 0xFF; + + command[3] = (y >> 8) & 0xFF; + command[4] = y & 0xFF; + + int i, temp = 0, color = 0, resp = 0; + char response[2] = ""; + + freeBUFFER(); + + for (i = 0; i < 5; i++) { // send all chars to serial port + writeBYTE(command[i]); + } + + while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer + + while (_cmd.readable()) { + temp = _cmd.getc(); + response[resp++] = (char)temp; + } + + color = ((response[0] << 8) + response[1]); + + return color; // WARNING : this is 16bits color, not 24bits... need to be fixed +} + +//****************************************************************************************************** +void TFT_4DGL :: screen_copy(int xs, int ys , int xd, int yd , int width, int height) { + + char command[13]= ""; + + command[0] = SCREENCOPY; + + command[1] = (xs >> 8) & 0xFF; + command[2] = xs & 0xFF; + + command[3] = (ys >> 8) & 0xFF; + command[4] = ys & 0xFF; + + command[5] = (xd >> 8) & 0xFF; + command[6] = xd & 0xFF; + + command[7] = (yd >> 8) & 0xFF; + command[8] = yd & 0xFF; + + command[9] = (width >> 8) & 0xFF; + command[10] = width & 0xFF; + + command[11] = (height >> 8) & 0xFF; + command[12] = height & 0xFF; + + writeCOMMAND(command, 13); +} + +//**************************************************************************************************** +void TFT_4DGL :: pen_size(char mode) { // set pen to SOLID or WIREFRAME + char command[2]= ""; + + command[0] = PENSIZE; + command[1] = mode; + + writeCOMMAND(command, 2); +} + +//**************************************************************************************************** +// This plays a .wav file from the FAT partition of an uSD Card +// Not really recommended as the speaker on the uLCD-32PT is really bad! +//**************************************************************************************************** +void TFT_4DGL :: SD_Card_Wav(char *Filename) { + char command[21]= ""; + int Lgt=0; + + command[0] = 0x40; //ext_cmd + command[1] = 0x6C; //Play Audio + command[2] = 0x01; //Option 0x00=Return at end, 0x01=Return now, 0x02=Stop, 0x03=Pause, 0x04=Resume, 0x05=Loop. + for(int i=0;Filename[i]!=0x00;i++){ + command[i+3] = Filename[i]; + Lgt = i; + } + command[Lgt+4] = 0x2E; //. + command[Lgt+5] = 0x77; //w + command[Lgt+6] = 0x61; //a + command[Lgt+7] = 0x76; //v + command[Lgt+8] = 0x00; //terminator + + writeCOMMAND(command, Lgt+9); +} + +//**************************************************************************************************** +// This sets the volume for the speaker on the uLCD-32PT +//**************************************************************************************************** +void TFT_4DGL :: Set_Volume(char vol) { + + char command[2]= ""; + + command[0] = 0x76; //cmd + command[1] = vol; //set volume + + writeCOMMAND(command, 2); +} + +//**************************************************************************************************** +// This displays an image on the screen that is stored on the FAT partition of an uSD Card +// Sent Filename, X-pos, Y-pos, Sector Address - Display from the RAW partition is quicker +//**************************************************************************************************** +void TFT_4DGL :: uSD_FAT_Image(char *Filename, int x, int y, long s) { + char X_MSB, X_LSB, Y_MSB, Y_LSB, S0, S1, S2, S3; + char command[25]= ""; + int Lgt=0; + + X_LSB = x&0x00FF; + X_MSB = (x >> 8); + Y_LSB = y&0x00FF; + Y_MSB = (y >> 8); + + S0 = (s >> 20)&0x000000FF; + S1 = (s >> 16)&0x0000FF; + S2 = (s >> 8)&0x0000FF; + S3 = s&0x0000FF;; + + command[0] = '@'; //ext_cmd + command[1] = 'm'; //FAT Image + for(int i=0;Filename[i]!=0x00;i++){ + command[i+2] = Filename[i]; + Lgt = i; + } + command[Lgt+3] = '.'; //. + command[Lgt+4] = 'G'; //G + command[Lgt+5] = 'C'; //C + command[Lgt+6] = 'I'; //I + command[Lgt+7] = 0x00; //Terminator + command[Lgt+8] = X_MSB; //X-Position MSB + command[Lgt+9] = X_LSB; //X-Position LSB + command[Lgt+10] = Y_MSB; //Y-Position MSB + command[Lgt+11] = Y_LSB; //Y-Position LSB + command[Lgt+12] = S0; //Sector Address 4 bytes + command[Lgt+13] = S1; + command[Lgt+14] = S2; + command[Lgt+15] = S3; + + writeCOMMAND(command, Lgt+16); +} + +//**************************************************************************************************** +// This displays an image on the screen in the NEW FORMAT +// Sent X-pos, Y-pos, Sector Address - This is the recommended way to display images +//**************************************************************************************************** +void TFT_4DGL :: uSD_Image(int x, int y, long s) { + char S1, S2, S3; + char X_MSB, X_LSB, Y_MSB, Y_LSB; + char command[9]= ""; + + X_LSB = x&0x00FF; //Work out the x position + X_MSB = (x >> 8); + Y_LSB = y&0x00FF; //Work out the y position + Y_MSB = (y >> 8); + + S1 = (s >> 16)&0x0000FF; //Work out the sector address + S2 = (s >> 8)&0x0000FF; + S3 = s&0x0000FF; + + command[0] = 0x40; //ext_cmd + command[1] = 0x49; //Display image + command[2] = X_MSB; //X position - 2 bytes + command[3] = X_LSB; + command[4] = Y_MSB; //Y position - 2 bytes + command[5] = Y_LSB; + command[6] = S1; //Sector address - 3 bytes + command[7] = S2; + command[8] = S3; + + writeCOMMAND(command, 9); +} + +//**************************************************************************************************** +// This displays an video on the screen in the NEW FORMAT +// Sent X-pos, Y-pos, Sector Address - This is the recommended way to display video +//**************************************************************************************************** +void TFT_4DGL :: uSD_Video(int x, int y, long s) { + char S1, S2, S3; + char X_MSB, X_LSB, Y_MSB, Y_LSB; + char command[10]= ""; + + X_LSB = x&0x00FF; + X_MSB = (x >> 8); + Y_LSB = y&0x00FF; + Y_MSB = (y >> 8); + + S1 = (s >> 16)&0x0000FF; + S2 = (s >> 8)&0x0000FF; + S3 = s&0x0000FF; + + command[0] = 0x40; //ext_cmd + command[1] = 0x56; //Display video + command[2] = X_MSB; //X position - 2 bytes + command[3] = X_LSB; + command[4] = Y_MSB; //Y position - 2 bytes + command[5] = Y_LSB; + command[6] = 0x00; //delay between frames + command[7] = S1; //Sector address - 3 bytes + command[8] = S2; + command[9] = S3; + + writeCOMMAND(command, 10); +}