main.cpp

00001 #include "stdio.h"
00002 #include "stdlib.h"
00003 #include "math.h"
00004 #include "mbed.h"
00005 #include "ST7735_TFT.h"
00006 #include "string"
00007 #include "Arial12x12.h"
00008 #include "Arial24x23.h"
00009 #include "Arial28x28.h"
00010 
00011 #define NUMBER_OF_STARS 300
00012 #define SCREEN_WIDTH 128
00013 #define SCREEN_HEIGHT 160
00014 
00015 /*star struct*/
00016 typedef struct {
00017     float xpos, ypos;
00018     short zpos, speed;
00019     unsigned int color;
00020 } STAR;
00021 
00022 static STAR stars[NUMBER_OF_STARS];
00023 
00024 
00025 void init_star(STAR* star, int i)
00026 {
00027     /* randomly init stars, generate them around the center of the screen */
00028 
00029     star->xpos =  -10.0 + (20.0 * (rand()/(RAND_MAX+1.0)));
00030     star->ypos =  -10.0 + (20.0 * (rand()/(RAND_MAX+1.0)));
00031 
00032     star->xpos *= 3072.0; /*change viewpoint */
00033     star->ypos *= 3072.0;
00034 
00035     star->zpos =  i;
00036     star->speed =  2 + (int)(2.0 * (rand()/(RAND_MAX+1.0)));
00037 
00038     star->color = i*Cyan >> 2; /*the closer to the viewer the brighter*/
00039 }
00040 
00041 
00042 void init()
00043 {
00044     int i;
00045 
00046     for (i = 0; i < NUMBER_OF_STARS; i++) {
00047         init_star(stars + i, i + 1);
00048     }
00049 }
00050 
00051 
00052 // the TFT is connected to SPI pin 5-7, CS is p8, RS is p11, reset is p15
00053 ST7735_TFT TFT(p5, p6, p7, p8, p11, p15,"TFT"); // mosi, miso, sclk, cs, rs, reset
00054 
00055 Serial pc(USBTX, USBRX); // tx, rx
00056 Timer t;
00057 
00058 extern unsigned char p1[];  // the mbed logo
00059 
00060 int main()
00061 {
00062 
00063     unsigned int centerx, centery;
00064     int i, j, tempx, tempy;
00065     init();
00066     TFT.set_orientation(1); // original = 1
00067     centerx = TFT.width() >> 1;
00068     centery = TFT.height() >> 1;
00069 
00070 
00071     TFT.claim(stdout);      // send stdout to the TFT display
00072     //TFT.claim(stderr);      // send stderr to the TFT display
00073 
00074     TFT.background(Black);    // set background to black
00075 
00076     TFT.foreground(White);    // set chars to white
00077 
00078     TFT.cls();
00079     TFT.set_font((unsigned char*) Arial24x23);  // select the font
00080 
00081     t.start();
00082 
00083 
00084 //↓@ss demo
00085         for( i=0; i < 1000; i++){
00086           TFT.circle(rand()%TFT.width(), rand()%TFT.height(), rand()%50, rand()%0xffff);
00087           }
00088           
00089           for( i=0; i < 10000; i++){
00090           TFT.rect(rand()%TFT.width(), rand()%TFT.height(), rand()%TFT.width(), rand()%TFT.height(), rand()%0xffff);
00091           }
00092           
00093           for( i=0; i < 1000; i++){
00094           TFT.fillcircle(rand()%TFT.width(), rand()%TFT.height(), rand()%50, rand()%0xffff);
00095           
00096                     for( i=0; i < 1000; i++){
00097           TFT.fillrect(rand()%TFT.width(), rand()%TFT.height(), rand()%TFT.width(), rand()%TFT.height(), rand()%0xffff);
00098           }
00099           
00100           
00101           }
00102 //↑@ss demo
00103 
00104 
00105     ////// demo start
00106     // ***************************************************************
00107         for( j = 0 ; j < 10000; j++)
00108     //    for ( j = 0 ; j < 10000; j++ )
00109         {
00110 
00111 
00112           // move and draw stars
00113 
00114           for (i = 0; i < NUMBER_OF_STARS; i++)
00115         {
00116           tempx = (stars[i].xpos / stars[i].zpos) + centerx;
00117           tempy = (stars[i].ypos / stars[i].zpos) + centery;
00118           TFT.pixel(tempx,tempy,Black);
00119 
00120 
00121           stars[i].zpos -= stars[i].speed;
00122 
00123           if (stars[i].zpos <= 0)
00124             {
00125               init_star(stars + i, i + 1);
00126             }
00127 
00128           //compute 3D position
00129           tempx = (stars[i].xpos / stars[i].zpos) + centerx;
00130           tempy = (stars[i].ypos / stars[i].zpos) + centery;
00131 
00132           if (tempx < 0 || tempx > TFT.width() - 1 || tempy < 0 || tempy > TFT.height() - 1) //check if a star leaves the screen
00133             {
00134               init_star(stars + i, i + 1);
00135               continue;
00136             }
00137 
00138           TFT.pixel(tempx,tempy,stars[i].color);
00139 
00140         }
00141          TFT.Bitmap(centerx-60,centery-19,120,38,p1);
00142         }
00143 
00144         ///// demo stop
00145 
00146         t.stop();
00147   //  *******************************************************************/
00148 
00149 
00150 //↓@ss test
00151 #ifndef 1
00152     TFT.set_font((unsigned char*) Arial12x12);  // select the font
00153     for(int x = 159; x >= 0; x--) {
00154 //    TFT.pixel(-2,-1,0x100*x+0xff);
00155         TFT.rect(0, 0, x,(x-32), 0xffff);
00156         TFT.locate(0,10);
00157         printf("X=%d, y = %d",x,x-32);
00158         wait(0.1);
00159         TFT.rect(0, 0, x,(x-32), 0x0000);
00160     }
00161 #else
00162 //    TFT.locate(0,10);
00163     TFT.set_font((unsigned char*) Arial12x12);  // select the font
00164 //    printf("Time %f s\n", t.read());
00165 
00166 //   TFT.fillrect(-2, -1, 157, 126, 0);  //clr
00167 
00168     TFT.set_font((unsigned char*) Arial12x12);
00169     /*
00170         TFT.rect(0,0,159,127,0xffff);
00171         TFT.rect(10,10,20,20,0x0fff);
00172         TFT.rect(158,126,20,20,0xffff);
00173         TFT.line(0,0, 159,127,0xffff);
00174         TFT.line(159,0,0,127,0xffff);
00175     */
00176     for(int y = 0; y < 128; y+=1) {
00177         for(int x = 0; x <160; x+=1) {
00178             if(y%2== 0) {
00179                 if(x%2==0) {
00180                     TFT.pixel(x,y,0xffff);
00181                 } else {
00182                     TFT.pixel(x,y,0x0ff);
00183                 }
00184             } else {
00185                 if(x%2==0) {
00186                     TFT.pixel(x,y,0xff);
00187                 } else {
00188                     TFT.pixel(x,y,0xffff);
00189                 }
00190             }
00191             //wait_ms(10);
00192         }
00193     }
00194 
00195 #endif
00196 //↑@ss test
00197 
00198 }