/* test_gifread.c   test program    */
/*                  needs gif.h and gifread.c */
#include <stdio.h>

int main(int argc, char * argv[])
{
  int status, i, j, k;
  unsigned char rgbpix[200000];
  int width;
  int height;
  int alpha = -1;
  
  printf("test_gifread calling gifread on file %s\n", argv[1]);
  
  status = gifread(argv[1], alpha, &width, &height, rgbpix);
  
  printf("test_gifread , alpha=%d, returned status=%d, width=%d, height=%d \n",
         alpha, status, width, height);
  k=0;
  for(i=0; i<5; i++) /* all data i<width*height; */
  {
    for(j=0; j<4; j++)
    {
      if(k/3>=width*height) break; /* last line may have some junk */
      if((k/3)%width==0) {printf("\n"); j=0;}
      printf("%03u %03u %03u  ", rgbpix[k], rgbpix[k+1], rgbpix[k+2]);
      k = k+3;
    }
    printf("\n");
    if(k/3>=width*height) break; /* last line may have some junk */
  }
  printf("test_gifread again gifread on file %s\n", argv[1]);
  alpha = 255;
  status = gifread(argv[1], alpha, &width, &height, rgbpix);
  
  printf("test_gifread , alpha=%d, returned status=%d, width=%d, height=%d \n",
         alpha, status, width, height);
  k=0;
  for(i=0; i<5; i++) /* all data i<width*height; */
  {
    for(j=0; j<4; j++)
    {
      if(k/4>=width*height) break; /* last line may have some junk */
      if((k/4)%width==0) {printf("\n"); j=0;}
      printf("%03u %03u %03u %03u  ", rgbpix[k], rgbpix[k+1],
             rgbpix[k+2], rgbpix[k+3]);
      k = k+4;
    }
    printf("\n");
    if(k/4>=width*height) break; /* last line may have some junk */
  }

  return 0;
}