dcraw.patch

--- dcraw.tmp.c~	2020-04-25 19:35:20.262807800 +0200
+++ dcraw.tmp.c	2020-04-25 19:41:25.738176300 +0200
@@ -176,2 +176,21 @@
 #define SWAP(a,b) { a=a+b; b=a-b; a=a-b; }
+#define SET_TIMESTAMP(t) ({ time_t _ = mktime(t); if (_ > 0) timestamp = _; })
+
+#ifdef SMALL
+# define bright (1)
+# define half_size (1)
+# define threshold (0)
+# define highlight (0)
+# define output_bps (8)
+# define use_auto_wb (1)
+# define output_tiff (0)
+# define output_color (1)
+# define use_camera_wb (0)
+# define document_mode (1)
+# define four_color_rgb (1)
+# define no_auto_bright (0)
+# define use_camera_matrix (1)
+# undef stdout
+# define stdout NULL
+#endif /* SMALL */
 
@@ -5488,4 +5507,3 @@
   t.tm_isdst = -1;
-  if (mktime(&t) > 0)
-    timestamp = mktime(&t);
+  SET_TIMESTAMP(&t);
 }
@@ -5799,2 +5817,4 @@
       case 274:				/* Orientation */
+	// i = get2();
+	// tiff_ifd[ifd].flip = "50132467"[(/*dng_version&&*/i>8?i>>1:i) & 7]-'0';
 	tiff_ifd[ifd].flip = "50132467"[get2() & 7]-'0';
@@ -5939,4 +5959,6 @@
       case 34853:			/* GPSInfo tag */
+#ifndef SMALL
 	fseek (ifp, get4()+base, SEEK_SET);
 	parse_gps (base);
+#endif
 	break;
@@ -6613,4 +6635,3 @@
   t.tm_mon -= 1;
-  if (mktime(&t) > 0)
-    timestamp = mktime(&t);
+  SET_TIMESTAMP(&t);
   strcpy (make, "Rollei");
@@ -6819,4 +6840,3 @@
       t.tm_year -= 1900;
-      if (mktime(&t) > 0)
-	timestamp = mktime(&t);
+      SET_TIMESTAMP(&t);
     }
@@ -8803,4 +8823,6 @@
 	zero_is_bad = table[i].flags & 2;
+#ifndef SMALL
 	if (table[i].flags & 1)
 	  parse_external_jpeg();
+#endif
 	data_offset = table[i].offset;
@@ -9952,2 +9974,6 @@
   th->rat[8] *= focal_len;
+#ifdef SMALL
+  tiff_set (th, &th->ntag, 274, 3, 1, "12435867"[flip]-'0');
+  return;
+#endif
   strncpy (th->desc, desc, 512);
@@ -10095,3 +10121,20 @@
 #endif
-
+#ifdef SMALL
+  argv[argc] = "";
+  for (arg=1; (((opm = argv[arg][0]) - 2) | 2) == '+'; ) {
+    opt = argv[arg++][1];
+    switch (opt) {
+      case 'O':  outfile = argv[arg++];  break;
+      case 'e':  thumbnail_only    = 1;  break;
+      case 'i':  identify_only     = 1;  break;
+      case 'v':  verbose           = 1;  break;
+      default:
+        fprintf (stderr,_("Unknown option \"-%c\".\n"), opt);
+        return 1;
+    }
+  }
+  if (thumbnail_only) {
+    printf(_("Raw photo decoder, dcraw.js v%s - https://github.com/meganz/dcraw.js\n"), DCRAW_VERSION);
+  }
+#else /* SMALL */
 #ifndef LOCALTIME
@@ -10235,2 +10278,3 @@
   }
+#endif /* SMALL */
   for ( ; arg < argc; arg++) {
@@ -10279,2 +10323,5 @@
 	goto next;
+      } else if ((status = !(thumb_height * thumb_width > 262144 && ((int)thumb_length) > 0x7ff))) {
+	fprintf (stderr,_("%s has unwanted thumbnail: %d x %d (%db)\n"), ifname, thumb_width, thumb_height, thumb_length);
+	goto next;
       } else if (thumb_load_raw) {
@@ -10298,3 +10345,7 @@
       printf (_("\nFilename: %s\n"), ifname);
+#ifndef SMALL
       printf (_("Timestamp: %s"), ctime(&timestamp));
+#else
+      printf (_("Timestamp: %10ld\n"), (long) timestamp);
+#endif
       printf (_("Camera: %s %s\n"), make, model);
@@ -10326,2 +10377,5 @@
 	(threshold || aber[0] != 1 || aber[2] != 1)));
+#ifdef SMALL
+    for (iwidth = height > width ? height : width, shrink = 8; shrink && ((iwidth >> shrink) < 1000); --shrink) {}
+#endif
     iheight = (height + shrink) >> shrink;
@@ -10329,2 +10383,4 @@
     if (identify_only) {
+      printf(_("shrink(%d): %d x %d -> %d x %d (f:%x,c:%d,o:%d)\n"),
+             shrink, width, height, iwidth, iheight, filters, colors, flip);
       if (0) {
@@ -10454,2 +10510,3 @@
 	image[i][1] = (image[i][1] + image[i][3]) >> 1;
+#ifndef SMALL
     if (!is_foveon && colors == 3) median_filter();
@@ -10461,2 +10518,3 @@
 #endif
+#endif
     convert_to_rgb();