#include <stdlib.h>
#include <stdio.h>

/* this program is used to general random pixel selection pattern */
main(int argc, char *argv[])
{
  FILE *fp;
  unsigned short pixel[16][16];
  unsigned short i,j,k;

  for(j=0;j<16;j++)
    for(i=0;i<16;i++)
      pixel[j][i]=256;
  
  pixel[ 3][ 0]= 0;
  pixel[ 0][14]= 1;
  pixel[12][ 6]= 2;
  pixel[ 7][ 1]= 3;
  pixel[15][ 3]= 4;
  pixel[ 4][ 9]= 5;
  pixel[11][ 2]= 6;
  pixel[ 9][ 4]= 7;
  pixel[ 2][ 7]= 8;
  pixel[ 5][15]= 9;
  pixel[10][13]=10;
  pixel[ 1][11]=11;
  pixel[14][12]=12;
  pixel[ 6][ 5]=13;
  pixel[ 8][10]=14;
  pixel[13][ 8]=15;
  
  for(k=16;k<256;k++){
    while(pixel[j=rand()%16][i=rand()%16]<256);
    pixel[j][i]=k;
  }
  
  fp=fopen(argv[1],"w");
  fprintf(fp,"#include \"prj.h\"\n\n");
  fprintf(fp,"set_rand()\n{\n");
  for(k=0;k<256;k++){
    for(j=0;j<16;j++)
      for(i=0;i<16;i++)
	if(pixel[j][i]==k)
	  fprintf(fp,"  qq[%3d]=%2d; pp[%3d]=%2d;\n",k,j,k,i);
  }
  fprintf(fp,"\n}\n");

  fclose(fp);
  
  /*show the first 16 pixels */
  for(j=0;j<16;j++){
    for(i=0;i<16;i++)
      printf(" %c",pixel[j][i]<16? 'X':'_');
    printf("\n");
  }
  printf("\n");
  
}