Updated version of bmpcmp.c to support maxdiffs parameter. Also, bitmaps

are output numbered 00000, 00001, etc rather than 0, 1, etc to tidy
directory listings.

Updated htmldiff.pl file to cope with the rejigged number formats.

git-svn-id: http://svn.ghostscript.com/ghostscript/trunk@10651 a1074d23-0009-0410-80fe-cf8c14f379e6

1 files changed, 55 insertions, 27 deletions

diff --git a/gs/toolbin/bmpcmp.c b/gs/toolbin/bmpcmp.c
index ce631501f..28fc2b234 100755
--- a/gs/toolbin/bmpcmp.c
+++ b/gs/toolbin/bmpcmp.c
@@ -64,7 +64,7 @@ static unsigned char *bmp_load_sub(unsigned char *bmp,
                                    int           *height_ret,
                                    int           *span,
                                    int           *bpp,
-                                   int            image_offset,

+                                   int            image_offset,
                                    int            filelen)
 {
   int size, src_bpp, dst_bpp, comp, xdpi, ydpi, i, x, y, cols;
@@ -160,7 +160,7 @@ static unsigned char *bmp_load_sub(unsigned char *bmp,
   word_width  = width * (src_bpp>>3);
   word_width += 3;
   word_width &= ~3;
-

+
   dst = Malloc(word_width * height);
 
   /* Now we do the actual conversion */
@@ -857,20 +857,20 @@ static void diff_bmp(unsigned char *bmp,
         }
     }
 }
-

-static void save_meta(BBox *bbox, char *str, int w, int h, int page)

-{

-    FILE *file;

-

-    file = fopen(str, "wb");

-    if (file == NULL)

-        return;

-

-    fprintf(file, "PW=%d\nPH=%d\nX=%d\nY=%d\nW=%d\nH=%d\nPAGE=%d\n",

-            w, h, bbox->xmin, h-bbox->ymax,

-            bbox->xmax-bbox->xmin, bbox->ymax-bbox->ymin, page);

-    fclose(file);

-}

+
+static void save_meta(BBox *bbox, char *str, int w, int h, int page)
+{
+    FILE *file;
+
+    file = fopen(str, "wb");
+    if (file == NULL)
+        return;
+
+    fprintf(file, "PW=%d\nPH=%d\nX=%d\nY=%d\nW=%d\nH=%d\nPAGE=%d\n",
+            w, h, bbox->xmin, h-bbox->ymax,
+            bbox->xmax-bbox->xmin, bbox->ymax-bbox->ymin, page);
+    fclose(file);
+}
 
 static void save_bmp(unsigned char *data,
                      BBox          *bbox,
@@ -952,22 +952,25 @@ int main(int argc, char *argv[])
     int            nx, ny, n;
     int            basenum;
     int            imagecount;
+    int            maxdiffs;
     unsigned char *bmp;
     unsigned char *bmp2;
     BBox           bbox, bbox2;
     BBox          *boxlist;
     char           str1[256];
     char           str2[256];
-    char           str3[256];

-    char           str4[256];

+    char           str3[256];
+    char           str4[256];
     ImageReader    image1, image2;
 
     if (argc < 4)
     {
-        fprintf(stderr, "Syntax: bmpcmp <file1> <file2> <outfile_root> [<basenum>]\n");
+        fprintf(stderr, "Syntax: bmpcmp <file1> <file2> <outfile_root> [<basenum>] [<maxdiffs>]\n");
         fprintf(stderr, "  <file1> and <file2> can be bmp, ppm, pgm or pbm files.\n");
-        fprintf(stderr, "  This will produce a series of <outfile_root>.<number>.bmp files");

-        fprintf(stderr, "  and a series of <outfile_root>.<number>.meta files.\n");

+        fprintf(stderr, "  This will produce a series of <outfile_root>.<number>.bmp files\n");
+        fprintf(stderr, "  and a series of <outfile_root>.<number>.meta files.\n");
+        fprintf(stderr, "  The maxdiffs value determines the maximum number of bitmaps\n");
+        fprintf(stderr, "  produced - 0 (or unsupplied) is taken to mean unlimited.\n");
         exit(EXIT_FAILURE);
     }
 
@@ -979,6 +982,15 @@ int main(int argc, char *argv[])
     {
         basenum = 0;
     }
+
+    if (argc > 5)
+    {
+        maxdiffs = atoi(argv[5]);
+    }
+    else
+    {
+        maxdiffs = 0;
+    }
     
     image_open(&image1, argv[1]);
     image_open(&image2, argv[2]);
@@ -1092,12 +1104,12 @@ int main(int argc, char *argv[])
                 rediff(bmp, bmp2, s, bpp, boxlist);
                 if (!BBox_valid(boxlist))
                     continue;
-                sprintf(str1, "%s.%d.bmp", argv[3], n);

-                sprintf(str2, "%s.%d.bmp", argv[3], n+1);
+                sprintf(str1, "%s.%05d.bmp", argv[3], n);
+                sprintf(str2, "%s.%05d.bmp", argv[3], n+1);
                 save_bmp(bmp,  boxlist, s, bpp, str1);
-                save_bmp(bmp2, boxlist, s, bpp, str2);

-                sprintf(str4, "%s.%d.meta", argv[3], n);

-                save_meta(boxlist, str4, w, h, imagecount-1);
+                save_bmp(bmp2, boxlist, s, bpp, str2);
+                sprintf(str4, "%s.%05d.meta", argv[3], n);
+                save_meta(boxlist, str4, w, h, imagecount);
                 n += 3;
             }
         }
@@ -1111,12 +1123,28 @@ int main(int argc, char *argv[])
                 boxlist++;
                 if (!BBox_valid(boxlist))
                     continue;
-                sprintf(str3, "%s.%d.bmp", argv[3], n+2);
+                sprintf(str3, "%s.%05d.bmp", argv[3], n+2);
                 save_bmp(bmp, boxlist, s, bpp, str3);
                 n += 3;
             }
         }
         basenum = n;
+
+        boxlist -= nx*ny;
+        free(boxlist);
+        free(bmp);
+        free(bmp2);
+        
+        /* If there is a maximum set */
+        if (maxdiffs > 0)
+        {
+            /* Check to see we haven't exceeded it */
+            maxdiffs--;
+            if (maxdiffs == 0)
+            {
+                break;
+            }
+        }
     }
 
     /* If one loaded, and the other didn't - that's an error */