1.1 --- a/src/FutabaVfd.cpp	Thu May 22 11:29:23 2014 +0200
     1.2 +++ b/src/FutabaVfd.cpp	Thu May 22 13:46:37 2014 +0200
     1.3 @@ -147,7 +147,7 @@
     1.4  @param Y coordinate of our pixel block starting point.
     1.5  @param The height of our pixel block.
     1.6  @param The size of our pixel data. Number of pixels divided by 8.
     1.7 -@param The value set to 8 pixels.
     1.8 +@param The value set to 8 pixels used as a pattern.
     1.9  */
    1.10  void GP1212A01A::SetPixelBlock(int aX, int aY, int aHeight, int aSize, unsigned char aValue)
    1.11  	{
    1.12 @@ -168,6 +168,45 @@
    1.13  	Write(report);
    1.14  	}
    1.15  
    1.16 +/**
    1.17 +Set the defined pixel block to the given value.
    1.18 +@param X coordinate of our pixel block starting point.
    1.19 +@param Y coordinate of our pixel block starting point.
    1.20 +@param The height of our pixel block.
    1.21 +@param The size of our pixel data. Number of pixels divided by 8.
    1.22 +@param Pointer to our pixel data.
    1.23 +*/
    1.24 +void GP1212A01A::SetPixelBlock(int aX, int aY, int aHeight, int aSize, unsigned char* aPixels)
    1.25 +    {
    1.26 +    FutabaVfdReport report;
    1.27 +    report[0]=0x00; //Report ID
    1.28 +    report[1]=0x08+(aSize<=report.Size()-10?aSize:64); //Report length. -10 is for our header first 10 bytes
    1.29 +    report[2]=0x1B; //Command ID
    1.30 +    report[3]=0x5B; //Command ID
    1.31 +    report[4]=0xF0; //Command ID
    1.32 +    report[5]=aX;   //X
    1.33 +    report[6]=aY;   //Y
    1.34 +    report[7]=aHeight; //Y length before return. Though outside the specs, setting this to zero apparently allows us to modify a single pixel without touching any other.
    1.35 +    unsigned short* sizePtr=(unsigned short*)report.Buffer()+8; //Size of pixel data in bytes (MSB)
    1.36 +    *sizePtr=aSize; //Put our size over 2 bytes
    1.37 +    int sizeWritten=MIN(aSize,report.Size()-10);
    1.38 +    memcpy(report.Buffer()+10, aPixels, sizeWritten);
    1.39 +    Write(report);
    1.40 +
    1.41 +    int remainingSize=aSize;
    1.42 +    //We need to keep on sending our pixel data until we are done
    1.43 +    while (report[1]==64)
    1.44 +        {
    1.45 +        report.Reset();
    1.46 +        remainingSize-=sizeWritten;
    1.47 +        report[0]=0x00; //Report ID
    1.48 +        report[1]=(remainingSize<=report.Size()-2?aSize:64); //Report length, should be 64 or the remaining size
    1.49 +        sizeWritten=(report[1]==64?63:report[1]);
    1.50 +        memcpy(report.Buffer()+2, aPixels+(aSize-remainingSize), sizeWritten);
    1.51 +        Write(report);
    1.52 +        }
    1.53 +    }
    1.54 +
    1.55  
    1.56  /**
    1.57  Clear our display's screen.