imaginator.cpp

00001 #include "imaginator.h"
00002 void superDisplay()
00003 {
00004     HX8340S_LCD lcd( p9, p14, p13, p11);
00005     lcd.Initialize();
00006     lcd.ClearScreen();
00007 }
00008 void superSd(unsigned char*buffer,unsigned int *offset,int bytes,const char *path)
00009 {
00010      SDFileSystem sd(p11, p12, p13, p8, "sd"); // the pinout on the mbed Cool Components workshop board
00011      FILE *fp =fopen(path, "r");
00012    
00013     if(fp == NULL) {
00014         error("Could not open file\c\n");
00015     }
00016     fseek(fp, *offset,SEEK_SET);
00017     *offset=*offset+bytes;
00018     fread((char*)buffer,1,bytes,fp);
00019     fclose(fp); 
00020      return;
00021 }
00022 void colorCompute(unsigned char*buffer, int* colorBuffer,int sizeOfBuffer)
00023 {
00024     int j=0;
00025     for(int i=0;i<sizeOfBuffer;i=i+4)
00026     {
00027         colorBuffer[j]=RGB((buffer[i+2]),(buffer[i+1]),(buffer[i]));
00028         j++;
00029     }
00030     return;
00031 }
00032 void pickUpLine(unsigned char*buffer, int* colorBuffer,int sizeOfBuffer,int sizeOfLine,const char *path, unsigned int *absPtr)
00033 {
00034     superSd(buffer,absPtr,sizeOfBuffer,path);
00035     colorCompute(buffer,colorBuffer,sizeOfBuffer);
00036     return;
00037 }
00038 void drawLine(int* color,int y)
00039 {
00040     HX8340S_LCD lcd(p9, p14, p13, p11);
00041     DigitalOut scr(p9);
00042     scr=0;
00043     int k=0;
00044     for(int j=y;j<(16+y);j++)
00045     {    
00046         for(int i=0;i<220;i++)
00047         {
00048             lcd.DrawPixel(i,j,color[k]);
00049             k++;
00050         }
00051     }
00052     scr=1;
00053     return;
00054 }
00055 void bmpFromSDToScreen(const char* path)
00056 {
00057     unsigned char rawbytes[14080];
00058     int color[3520];
00059     unsigned int absPtr=54;
00060     superDisplay();
00061     for(int i=0;i<176;i=i+16)
00062     {
00063         pickUpLine(rawbytes,color,14080,3520,path,&absPtr);
00064         drawLine(color,i);
00065     }
00066     return;
00067 }