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PostPosted: Wed Aug 24, 2005 16:58 
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Joined: Mon Aug 22, 2005 15:09
Posts: 15
After some research and some help from u guys I have a "plot-pixel"-function ready 2 use. It is not well coded but it works :wink:
Here it is:
Code:
void Plot(int X, int Y, int mode)
{
   unsigned char pixelvalue = 0x10;
   if ((X>-1) && (X<128) && (Y>-1) && (Y<64))
   {
      if (mode==0) arrayLCD[(X>>3)+(Y<<7)] = arrayLCD[(X>>3)+(Y<<7)] & (255-(1<<(7-(X&7))));
      if (mode==1) arrayLCD[(X>>3)+(Y<<7)] = arrayLCD[(X>>3)+(Y<<7)] | 1<<(7-(X&7));
      if (mode==2) arrayLCD[(X>>3)+(Y<<7)] = arrayLCD[(X>>3)+(Y<<7)] ^ 1<<(7-(X&7));

      SetColumn(X);
      switch(Y%8)
      {
         case 0:   pixelvalue = 0x01; break;
         case 1:   pixelvalue = 0x02; break;
         case 2:   pixelvalue = 0x04; break;
         case 3:   pixelvalue = 0x08; break;
         case 4:   pixelvalue = 0x10; break;
         case 5:   pixelvalue = 0x20; break;
         case 6:   pixelvalue = 0x40; break;
         case 7:   pixelvalue = 0x80; break;
         default: pixelvalue = 0x10;
      }
      if(Y<8)
      {   SetPage(0);}
      else if(Y>=8 && Y<16)
      {    SetPage(1);}
      else if(Y>=16 && Y<24)
      {    SetPage(2);}
      else if(Y>=24 && Y<32)
      {    SetPage(3);}
      else if(Y>=32 && Y<40)
      {   SetPage(4);}
      else if(Y>=40 && Y<48)
      {    SetPage(5);}
      else if(Y>=48 && Y<56)
      {    SetPage(6);}
      else
      {    SetPage(7);}
      SendLCDData(&pixelvalue,1);
   }
}

Still I don't know if I need the array, but I think it's nice 2 have if u want 2 check if the pixel is on or off. Must say THX 2 Micheal 4 the excellent idea about "Y%8"
Note: This function is for KS0108, not tested with other controllers.
Have fun
Kneego


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 Post subject:
PostPosted: Wed Aug 24, 2005 19:45 
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Joined: Wed Aug 03, 2005 20:27
Posts: 130
Location: .fi
Might also do the trick...

Code:
void Plot(int X, int Y, int mode)
{
   if ((X>-1) && (X<128) && (Y>-1) && (Y<64))
   {
      if (mode==0) arrayLCD[X+((Y>>3)<<7)] = arrayLCD[X+((Y>>3)<<7)] & (255-(1<<(Y&7)));
      if (mode==1) arrayLCD[X+((Y>>3)<<7)] = arrayLCD[X+((Y>>3)<<7)] | 1<<(Y&7);
      if (mode==2) arrayLCD[X+((Y>>3)<<7)] = arrayLCD[X+((Y>>3)<<7)] ^ 1<<(Y&7);

      SetColumn(X);
      SetPage(Y>>3)
      SendLCDData(arrayLCD[X+((Y>>3)<<7)],1);
   }
}


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 Post subject:
PostPosted: Thu Aug 25, 2005 9:37 
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Joined: Mon Aug 22, 2005 15:09
Posts: 15
Excellent Zee!!! :)
Your code works. Much better than mine and with only one single line instead of several if and switch statements.
It's hard for me to think the numbers or codes bitwise but u done that easily.
THX Zee.
Kneego


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 Post subject:
PostPosted: Fri Aug 26, 2005 23:41 
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Joined: Mon Jun 20, 2005 23:03
Posts: 161
Location: Hong Kong
Kneego, thankx for you help
I've [almost] completed adding unicode support along with BIG5 and GB2312 support. Thats over 20000 CJK characters, from native point9 to point 24.


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PostPosted: Sat Aug 27, 2005 11:05 
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Joined: Mon Aug 22, 2005 15:09
Posts: 15
Glad 2 be some help. U help me I help u that's the idea. Very impressed, 20 000 characters, wow. Must be alot of work...
Keep on going...
Kneego


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