graphic.c

这是linux下在LCD上显示英文和数字的程序 已经验证是好使的

         return;
        }
  printf("%d* %d\n",bmp_inf.biWidth,bmp_inf.biHeight);
  size=bmp_inf.biHeight*((bmp_inf.biWidth*3+3)/4*4);
  buf=(char*)malloc(size);
  buf1=(char*)malloc(bmp_inf.biWidth*bmp_inf.biHeight*2);

  fseek(fp,54L,0);
                                                                                
  fread(buf,1,size,fp);
  fclose(fp);
  for(i=0;i<(bmp_inf.biHeight>>1);i++)
    for(k=i*((bmp_inf.biWidth*3+3)/4)*4,j=0;j<bmp_inf.biWidth*3;j++)
       {
         Tmp=buf[k+j];
         buf[k+j]=buf[size-k-bmp_inf.biWidth*3+j];
         buf[size-k-bmp_inf.biWidth*3+j]=Tmp;
       }
  for(i=0;i<(bmp_inf.biHeight);i++)
    for(k=i*((bmp_inf.biWidth*3+3)/4)*4,m=i*bmp_inf.biWidth*2,j=0;j<bmp_inf.biWidth;j++)
  { 
      red=(((buf[k+j*3])>>3))*2048;
      green=(buf[k+j*3+1]>>3)*64;
      blue=(buf[k+j*3+2]>>3); 
     *(unsigned short *)(buf1+m+j*2)=red|green|blue;
    }  
    color_565_draw_bmp(x,y,bmp_inf.biWidth,bmp_inf.biHeight,buf1);
    free(buf);free(buf1);
                                                                                
}
*/
void ShowBMP(char *filename,short x,short y)
{
  BMPHEAD bmp_inf;
  FILE *fp;
  char Tmp,*buf,*buf1,*buf2,c;
  int width,height;
  int red,green,blue;
  long aver_size,size,i,m,j,k;
  fp=fopen(filename,"rb");
  if(!fp) return;
fseek(fp,2L,0);
  fread(&bmp_inf.bfSize,1,52,fp);
//printf("biBiCount %x\n",bmp_inf.biBitCount);
  if(bmp_inf.biBitCount!=1&bmp_inf.biBitCount!=16&bmp_inf.biBitCount!=24)
        {
         fclose(fp);
         puts("Unsupported 2|16color bitmap!\n");
         printf("bitcolor=%d\n",*((short*)&bmp_inf.biBitCount));
         return;
        }
   else if(bmp_inf.biBitCount==1)                    //Show black and white                         
{                           
 printf("%d* %d\n",bmp_inf.biWidth,bmp_inf.biHeight);
 aver_size=((bmp_inf.biWidth+15)/16)*2; //line size
 printf("aversize=%d\n",aver_size);
 size=aver_size*bmp_inf.biHeight;
  buf=(char*)malloc(size);
fseek(fp,62L,0);
  fread(buf,1,size,fp);
  fclose(fp);
  for(i=0;i<(bmp_inf.biHeight>>1);i++)
    for(k=i*aver_size,j=0;j<aver_size;j++)
       {
         Tmp=buf[k+j];
         buf[k+j]=buf[size-k-aver_size+j];
         buf[size-k-aver_size+j]=Tmp;
       }

    for(i=0;i<size;i++)
     buf[i]^=0xff;
  printf("the width=%d\nthe height=%d\n",bmp_inf.biWidth,bmp_inf.biHeight);
  my_draw_bmp(x,y,bmp_inf.biWidth,bmp_inf.biHeight,buf);
   free(buf);
  }

   else if(bmp_inf.biBitCount==16)                              //show 16_bit BMP   SHOW_16_color_bmp
   {size=bmp_inf.biWidth*bmp_inf.biHeight*2;
  buf=(char*)malloc(size);
  fseek(fp,54L,0);                                                                fread(buf,1,size,fp);
  fclose(fp);
  for(i=0;i<(bmp_inf.biHeight>>1);i++)
    for(k=i*bmp_inf.biWidth*2,j=0;j<bmp_inf.biWidth*2;j++)
       {
         Tmp=buf[k+j];
         buf[k+j]=buf[size-k-bmp_inf.biWidth*2+j];
         buf[size-k-bmp_inf.biWidth*2+j]=Tmp;
       }
   color_555_draw_bmp(x,y, bmp_inf.biWidth,bmp_inf.biHeight,buf);
 // else
   //  color_565_draw_bmp(x,y,bmp_inf.biWidth,bmp_inf.biHeight,buf);
    free(buf);
}
   else if(bmp_inf.biBitCount==24)
	{// printf("%d* %d\n",bmp_inf.biWidth,bmp_inf.biHeight);
  size=bmp_inf.biHeight*((bmp_inf.biWidth*3+3)/4*4);
  buf=(char*)malloc(size);
  buf1=(char*)malloc(bmp_inf.biWidth*bmp_inf.biHeight*2);
                                                                                
  fseek(fp,54L,0);
                                                                                
  fread(buf,1,size,fp);
  fclose(fp);
  for(i=0;i<(bmp_inf.biHeight>>1);i++)
    for(k=i*((bmp_inf.biWidth*3+3)/4)*4,j=0;j<bmp_inf.biWidth*3;j++)
       {
         Tmp=buf[k+j];
         buf[k+j]=buf[size-k-bmp_inf.biWidth*3+j];
         buf[size-k-bmp_inf.biWidth*3+j]=Tmp;
       }
   for(i=0;i<(bmp_inf.biHeight);i++)
    for(k=i*((bmp_inf.biWidth*3+3)/4)*4,m=i*bmp_inf.biWidth*2,j=0;j<bmp_inf.biWidth;j++)
  {
     /* red=(((buf[k+j*3+2])>>3))*2048;
      green=(buf[k+j*3+1]>>3)*64;
      blue=(buf[k+j*3]>>3);*/
     red=((float)(buf[k+j*3+2]))/255*31+0.5;
     green=((float)(buf[k+j*3+1]))/255*63+0.5;
     blue=((float)(buf[k+j*3]))/255*31+0.5;
     *(unsigned short *)(buf1+m+j*2)=(red<<11)|(green<<5)|(blue);
     // *(unsigned short *)(buf1+m+j*2)=red|green|blue;
       }
    color_565_draw_bmp(x,y,bmp_inf.biWidth,bmp_inf.biHeight,buf1);
    free(buf);
    free(buf1);
                                                                                
}
}

void ShowBuf(char *Buf,short x,short y)
{
  BMPHEAD bmp_inf;
  char Tmp,*buf,*buf1,*buf2,c;
  int width,height;
  int red,green,blue;
  long aver_size,size,i,m,j,k;
  memcpy(&bmp_inf.bfSize,(Buf+2),52);
  
//printf("biBiCount %x\n",bmp_inf.biBitCount);
  if(bmp_inf.biBitCount!=1&bmp_inf.biBitCount!=16&bmp_inf.biBitCount!=24)
        {
         //fclose(fp);
         puts("Unsupported 2|16color bitmap!\n");
         printf("bitcolor=%d\n",*((short*)&bmp_inf.biBitCount));
         return;
        }
   else if(bmp_inf.biBitCount==1)                    //Show black and white                         
{                           
 printf("%d* %d\n",bmp_inf.biWidth,bmp_inf.biHeight);
 aver_size=((bmp_inf.biWidth+15)/16)*2; //line size
 printf("aversize=%d\n",aver_size);
 size=aver_size*bmp_inf.biHeight;
  buf=(char*)malloc(size);
  memcpy(buf,(Buf+62),size);

 //fseek(fp,62L,0);
 // fread(buf,1,size,fp);
 // fclose(fp);
  for(i=0;i<(bmp_inf.biHeight>>1);i++)
    for(k=i*aver_size,j=0;j<aver_size;j++)
       {
         Tmp=buf[k+j];
         buf[k+j]=buf[size-k-aver_size+j];
         buf[size-k-aver_size+j]=Tmp;
       }

    for(i=0;i<size;i++)
     buf[i]^=0xff;
  printf("the width=%d\nthe height=%d\n",bmp_inf.biWidth,bmp_inf.biHeight);
  my_draw_bmp(x,y,bmp_inf.biWidth,bmp_inf.biHeight,buf);
   free(buf);
  }

   else if(bmp_inf.biBitCount==16)                              //show 16_bit BMP   SHOW_16_color_bmp
   {size=bmp_inf.biWidth*bmp_inf.biHeight*2;
  buf=(char*)malloc(size);
  memcpy(buf,(Buf+54),size);
//  fseek(fp,54L,0);                                                                fread(buf,1,size,fp);
//  fclose(fp);
  for(i=0;i<(bmp_inf.biHeight>>1);i++)
    for(k=i*bmp_inf.biWidth*2,j=0;j<bmp_inf.biWidth*2;j++)
       {
         Tmp=buf[k+j];
         buf[k+j]=buf[size-k-bmp_inf.biWidth*2+j];
         buf[size-k-bmp_inf.biWidth*2+j]=Tmp;
       }
   color_555_draw_bmp(x,y, bmp_inf.biWidth,bmp_inf.biHeight,buf);
 // else
   //  color_565_draw_bmp(x,y,bmp_inf.biWidth,bmp_inf.biHeight,buf);
    free(buf);
}
   else if(bmp_inf.biBitCount==24)
	{ printf("%d* %d\n",bmp_inf.biWidth,bmp_inf.biHeight);
  size=bmp_inf.biHeight*((bmp_inf.biWidth*3+3)/4*4);
  buf=(char*)malloc(size);
  buf1=(char*)malloc(bmp_inf.biWidth*bmp_inf.biHeight*2);
  memcpy(buf,(Buf+54),size);
                                                                               
 // fseek(fp,54L,0);
                                                                                
 // fread(buf,1,size,fp);
//  fclose(fp);
  for(i=0;i<(bmp_inf.biHeight>>1);i++)
    for(k=i*((bmp_inf.biWidth*3+3)/4)*4,j=0;j<bmp_inf.biWidth*3;j++)
       {
         Tmp=buf[k+j];
         buf[k+j]=buf[size-k-bmp_inf.biWidth*3+j];
         buf[size-k-bmp_inf.biWidth*3+j]=Tmp;
       }
   for(i=0;i<(bmp_inf.biHeight);i++)
    for(k=i*((bmp_inf.biWidth*3+3)/4)*4,m=i*bmp_inf.biWidth*2,j=0;j<bmp_inf.biWidth;j++)
  {
    /*  red=(((buf[k+j*3+2])>>3))*2048;
      green=(buf[k+j*3+1]>>3)*64;
      blue=(buf[k+j*3]>>3);*/
     red=((float)(buf[k+j*3+2]))/255*31+0.5;
     green=((float)(buf[k+j*3+1]))/255*63+0.5;
     blue=((float)(buf[k+j*3]))/255*31+0.5;
     *(unsigned short *)(buf1+m+j*2)=(red<<11)|(green<<5)|(blue);
     // *(unsigned short *)(buf1+m+j*2)=red|green|blue;
       }
    color_565_draw_bmp(x,y,bmp_inf.biWidth,bmp_inf.biHeight,buf1);
    free(buf);
    free(buf1);
                                                                                
}
}

void V_scroll_screen(short height) //Up/Down Scroll
{
   short dir=(height<0);	

   if(dir) height=-height;
	   
   if(height<screen_height)
 	{
        long nBytes=height*240*2;///////////
        long nCount=240*2*(screen_height-height);
	    if(dir)  //Down Scroll
	       memmove(screen_ptr+nBytes,screen_ptr,nCount);
	      else     //Up Scroll
	       memmove(screen_ptr,screen_ptr+nBytes,nCount);
	   } 
   else
     clearscreen();	   
}

void H_scroll_screen(short width) //Left Scroll
{
 short dir=(width<0);
 
 if(dir) width=-width;
 
 if(width<screen_width)
 {
   if(width&7)   //Check whether it is byte aligned
  {
  short nCount=screen_width*screen_height>>3;
  static unsigned char mskr[]={0,1,3,7,0xf,0x1f,0x3f,0x7f},
	  	       mskl[]={0,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe},
		       buf[3200];
  unsigned char /*buf,*/c,flag=0,d;
  short start=(width>>3),length=(width&7),i,j,wid=(screen_width>>3),off;
  
  memcpy(buf,screen_ptr,nCount);
  if(dir)
  {
  for(off=0,j=0;j<screen_height;j++,off+=wid)
  {
   for(flag=0,i=wid-1;i>=start;i--)
   {
	d=c=*(buf+off+i);
	c<<=length;
	if(flag) c|=(flag>>(8-length));
	flag=d&mskl[length];
	*(buf+off+i)=c;
   }
  if(start)
    for(i=wid-start;i<wid;i++)
    {
	*(buf+off+i)=0;
    }
  }
  }
  else
  for(off=0,j=0;j<screen_height;j++,off+=wid)
  {
   for(flag=0,i=start;i<wid;i++)
   {
	d=c=*(buf+off+i);
	c>>=length;
	if(flag) c|=(flag<<(8-length));
	flag=d&mskr[length];
	*(buf+off+i)=c;
   }
  if(start)
    for(i=0;i<start;i++)
    {
	*(buf+off+i)=0;
    }
  }
  memcpy(screen_ptr,buf,nCount); 
  }
 else
  {
    short i,j=0,wid=screen_width>>3;
    
    width>>=3;
    for(i=0;i<screen_height;i++,j+=wid)
    {
	    memmove(screen_ptr+j+width,screen_ptr+j,wid-width);
	    memset(screen_ptr+j,0,width);
    }
  }
 }
 else
   clearscreen();
}

void textout(short x,short y,unsigned char *buf,unsigned short color,unsigned short groundcolor)
{
  int i,j,count=strlen(buf);
  short k,l,m=screen_width>>3;
  char pixel[32];

#ifdef FONT
  if(!font) {
		puts("Please Init Chinese Enviroment First!");
	//	printf(X\n");
                return;
           }
#endif  
if(x<0) x=0;
else if(x>640) x=640;
if(y<0) y=0;
else if(y>480) y=480;
  for(i=0;i<count;) //1
  {
   if((buf[i]>=161)&&(buf[i+1]>=161))///2
     {
       j=((buf[i]-161)*94+(buf[i+1]-161))<<5;
       fseek(C_Font,j,SEEK_SET);
       fread(pixel,32,1,C_Font);
       if((x+16)>screen_width) {
                             y+=16;
                             x=0;
                           }
       if(y+16>screen_height) {V_scroll_screen(y+16-screen_height);////up
                                XY_clearscreen(0,screen_height-16,screen_width-1,screen_height-1);
                                y=screen_height-16;
                              }

       draw_bmp(x,y,2,16,pixel,color,groundcolor);
       x+=16;  	       
       i+=2;
     } 
   else
     {
        if(buf[i]=='\n') {if(y+16>screen_height) {V_scroll_screen(y+16-screen_height);////up
                                XY_clearscreen(0,screen_height-16,screen_width-1,screen_height-1);
                                y=screen_height-16;
                              }
                          else y+=16;
	      		  x=0;	     
      			}
        else
        {if((x+8)>screen_width) {
                             y+=16;
                             x=0;
                           }
       if(y+16>screen_height) {V_scroll_screen(y+16-screen_height);////up
                               XY_clearscreen(0,screen_height-16,screen_width-1,screen_height-1);
                               y=screen_height-16;
                           }

	      draw_bmp(x,y,1,16,E_Font+(buf[i]<<4),color,groundcolor);	
	      x+=8;
        }
       i++;
     }///end 2
   }//end 1
  
}

void setmode(CopyMode mode)
{
  Mode=mode;
}

CopyMode getmode(void)	
{
  return Mode;	
}

void setcolor(short color)
{
  Color=color;
}

UINT getcolor(void)
{
	return Color;
}

void setfillpattern(PatternIndex index)
{
  P_Index=index;	
}

PatternIndex getfillpattern(void)
{
  return P_Index;	
}

void moveto(short x,short y)
{
	X=x;Y=y;
}

void lineto(short x,short y)
{
	line(x,y,X,Y);
	X=x;Y=y;
}