lcd_api.cpp

基于ucos的网络液晶开发程序

#include <stdio.h>
#include <string.h>
#include "HD61202.h"
#include "lcd_api.h"
#include "dotlib.h"

DOTLIB  LCD_Dot;

int XOREnable;
// return =  0: ok!
//        = -1: fail
int  LCD_Init( char* CHN_FntFile, char* ASCII_FntFile )
{
   InitLCD( );
   LCD_Dot.initiChinese( CHN_FntFile, ASCII_FntFile );
   XOREnable = 0;
   return 0;
}

int  LCD_Clearup( )
{
   return ClearScreen( );
}

// Mode = 0: copy write for dot, line
//      = 1: xor write for dot, line
int  LCD_SetMode( int Mode )
{
   if( Mode == 0 ) XOREnable = 0;
   else            XOREnable = 0x80;
   return 0;
}

// x0, x1 = 0 -- 127; y0, y1 = 0 -- 63;
// color = 0, 1
int  LCD_PutPixel( int x0, int y0, int color )
{
   return WritePixel( x0, y0, color|XOREnable );
}

int  LCD_DrawLine( int x0, int y0, int x1, int y1, int color )
{
   int i, x1x, y1y, y;

   if( x1>x0)  	{ x1x=x1-x0; }
   else		{ x1x=x0-x1; }
   if( y1>y0)  	{ y1y=y1-y0; y=y0; }
   else		{ y1y=y0-y1; y=y1; }

   if( x1x!=0 )
      {
      for( i=0; i<x1x; i++ )
	 {
	 if( x0>x1 )
	    {
	    if( y0<y1 )
	       LCD_PutPixel( x1+i, y1-(y1y*i)/x1x, color );
	    else
	       LCD_PutPixel( x1+i, y1+(y1y*i)/x1x, color );
	    }
	 else
	    {
	    if( y0<y1 )
	       LCD_PutPixel( x0+i, y0+(y1y*i)/x1x, color );
	    else
	       LCD_PutPixel( x0+i, y0-(y1y*i)/x1x, color );
	    }
	 }
      }
   else
      {
      for( i=0; i<y1y; i++ )
	 LCD_PutPixel( x0, y+i, color );
      }

   return 0;
}

int  LCD_FillBar( int x0, int y0, int x1, int y1, int color )
{
   int yy, tmpXOR;
   int x, y;

   tmpXOR = XOREnable;
   XOREnable = 0;
   //for( yy=y0; yy<=y1; yy++ )
      //LCD_DrawLine( x0, yy, x1, yy, color );
   for( x=x0; x<x1; )
      {
      for( y=y0; y<y1; )
	 {
	 LCD_WriteString( x, y, " ", color, 1 );
	 y += 16;
	 }
      x += 8;
      }
   XOREnable = tmpXOR;
   return 0;
}

// x0 = 0 -- 127; y0 = 0 -- 63;
// txtcolor, bkcolor = 0, 1
int  LCD_WriteString( int x0, int y0, char* pStr, int color, int len )
{
   int  i, i1;
   char cc[2];

   if( pStr==NULL ) 	return -1;

   i1 = strlen(pStr);
   if( (i1==0) && (len==0) ) 	return -1;

   if( len==0 )   len = i1;
   for( i=i1; i<len; i++ ) pStr[i] = ' ';
   pStr[i] = '\0';

   while( *pStr!='\0' )
      {
      cc[0]=*pStr++;
      if((cc[0]&0x80)/128==1)
	 {
	 cc[1] = *pStr++;
	 LCD_Dot.WriteHz( x0, y0, cc, color );
	 x0 += 16;
	 }
      else
	 {
	 if(cc[0]=='\\') cc[0]=*pStr++;
	 LCD_Dot.Writechar(x0, y0, cc[0], color );
	 x0 += 8;
	 }
      }

    return 0;
}