go_inout.h

TC下的图形库 v1.5

/*图象的淡入与淡出，color为目标颜色，w=0为淡入，w=1为淡出*/
void go_inout(int color,long timedelay,char w)
{register int n,k=0;
 register char target_rgb[256][3],turn_rgb[256][3],
 r,g,b;
 for(r=0;r<64;r+=9)	/*获得原DAC色表*/
  for(g=0;g<64;g+=9)
   for(b=0;b<64;b+=21)
   {target_rgb[k][0]=r;
    target_rgb[k][1]=g;
    target_rgb[k][2]=b;
    k++;
   }
 r=target_rgb[color][0];
 g=target_rgb[color][1];
 b=target_rgb[color][2];
 for(k=0;k<256;k++)		/*淡入或淡出色差表*/
 {turn_rgb[k][0]=(r-target_rgb[k][0])/9;
  turn_rgb[k][1]=(g-target_rgb[k][1])/9;
  turn_rgb[k][2]=(b-target_rgb[k][2])/21;
  if(w)
  {turn_rgb[k][0]=-turn_rgb[k][0];
   turn_rgb[k][1]=-turn_rgb[k][1];
   turn_rgb[k][2]=-turn_rgb[k][2];
  }
 }
 if(w)
  for(k=0;k<256;k++)
  {target_rgb[k][0]=r;
   target_rgb[k][1]=g;
   target_rgb[k][2]=b;
  }
 for(n=1;n<19;n++)
 {for(k=0;k<256;k++)
  {if(n%6!=0)target_rgb[k][2]+=turn_rgb[k][2];
   else target_rgb[k][2]+=turn_rgb[k][2]*2;
   if(n%2!=0)
   {target_rgb[k][1]+=turn_rgb[k][1]/2;target_rgb[k][0]+=turn_rgb[k][0]/2;}
   else
   {target_rgb[k][1]+=(turn_rgb[k][1]-turn_rgb[k][1]/2);
    target_rgb[k][0]+=(turn_rgb[k][0]-turn_rgb[k][0]/2);
   }
   outportb(0x3c8,k);
   outportb(0x3c9,target_rgb[k][0]);
   outportb(0x3c9,target_rgb[k][1]);
   outportb(0x3c9,target_rgb[k][2]);
  }
  delay(timedelay);	/*延时*/
 }
}