Diff: main.cpp

Revision:

0:d54096bf4bc6

Child:

1:9a127bd5a336

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jul 10 03:36:19 2013 +0000
@@ -0,0 +1,98 @@
+/**************************************************************************************/
+/*SMARTGPU2 intelligent embedded graphics processor unit
+ those examples are for use the SMARTGPU2 with the mbed microcontoller, just connect tx,rx,and reset
+ Board:
+ http://vizictechnologies.com/#/smart-gpu-2/4577779046
+ 
+ www.vizictechnologies.com 
+ Vizic Technologies copyright 2013 */
+/**************************************************************************************/
+
+#include "mbed.h"
+#include "SMARTGPU2.h"
+
+SMARTGPU2 lcd(TXPIN,RXPIN,RESETPIN);  //create our object called "lcd"
+
+char pixelArray[3];                     //Array to store the RGB888 pixel obtained with memoryRead()
+
+/**************************************************/
+//Funcion to convert a 3 byte array to an int RGB565
+int RGB888ToRGB565(char pixBuffer[]){   //get an array of 3 bytes( red, green, blue), and convert them to RGB565 returned in an int
+  unsigned char R,G,B;
+  unsigned int col;
+  unsigned long colour;
+  
+  R=pixBuffer[0];
+  G=pixBuffer[1];
+  B=pixBuffer[2]; 
+  ((unsigned char *) &colour)[1]=(R & 0xF8);
+  R=G;
+  G=G>>5;
+  ((unsigned char *) &colour)[1]|=G;
+  G=(R<<3)& 0xE0;
+  ((unsigned char *) &colour)[0]=B;
+  ((unsigned char *) &colour)[0]=((unsigned char *) &colour)[0]>>3;  
+  ((unsigned char *) &colour)[0]|=G;
+  col=colour;
+  return col;
+}
+
+/***************************************************/
+/***************************************************/
+void initializeSmartGPU2(void){      //Initialize SMARTGPU2 Board
+  lcd.reset();                       //physically reset SMARTGPU2
+  lcd.start();                       //initialize the SMARTGPU2 processor
+}
+
+/***************************************************/
+/***************************************************/
+/***************************************************/
+/***************************************************/
+int main() {
+  POINT point;
+  unsigned char penSize=1;
+  COLOUR colour = BLACK;
+  char pen[4]={'x','0','1',0x00};    //Array that show the current penSize  
+  NUMBEROFBYTES charsPrinted;
+  
+  initializeSmartGPU2();             //Init communication with SmartGPU2 board
+  
+  lcd.baudChange(BAUD7);             //set a fast baud! for fast drawing
+
+  //Load paint design
+  lcd.imageBMPSD(0,0,"paint");    
+  //strings config
+  lcd.setTextColour(GREEN);
+  lcd.setTextSize(FONT0);
+  lcd.setTextBackFill(FILLED);     
+  lcd.string(7,54,48,65,"Erase",&charsPrinted);       //draw Erase word
+  lcd.string(77,54,110,65,pen,&charsPrinted);         //draw penSize 
+  
+  while(1){   //Start the Paint application    
+    while(!lcd.touchScreen(&point));                  //Wait for a touch on the screen to do something      
+    //Once we get a touch somewhere on the screen:
+    if((point.y-penSize)<67){                         //the touch was on the menu
+      if(point.x<45){                                 //touch on erase circle
+        lcd.drawRectangle(0,67,319,239,WHITE,FILL);   //Draw a white rectangle on drawing area
+      }else if(point.x<75){                           //touch to select the eraser
+        colour=WHITE;
+        lcd.drawCircle(25,34,14,colour,FILL);         //draw WHITE colour circle on top left corner           
+      }else if(point.x<108){                          //touch to change pen Size 
+        penSize=penSize*2;                            //double the penSize
+        if(penSize==16){                              //maximum pen size = 8, if we reach 16 we set to 1.
+          penSize=1;
+        }          
+        pen[1]=(penSize/10)+0x30;                     //get the tens of penSize and convert them to ascii
+        pen[2]=(penSize%10)+0x30;                     //get the ones of penSize and convert them to ascii
+        lcd.string(77,54,110,65,pen,&charsPrinted);   //draw penSize 
+        wait_ms(500);                                 //delay to avoid fast penSize changing            
+      }else if(point.x<312 & point.y>20 & point.y<59){//touch on the colours bar                  
+        lcd.getImageFromMemory(point.x,point.y,point.x,point.y,pixelArray);  //assign new colour based on touch coordinates and memory read, this function return a 24 bit pixel array, 
+        colour=RGB888ToRGB565(pixelArray);
+        lcd.drawCircle(25,34,14,colour,FILL);         //draw new selected colour on top left corner           
+      }                
+    }else{                                            //Touch on drawing area
+      lcd.drawCircle(point.x,point.y,penSize,colour,FILL);                    //Draw
+    }
+  }
+}
\ No newline at end of file