X-Git-Url: https://granicus.if.org/sourcecode?a=blobdiff_plain;f=coders%2Ftiff.c;h=5bf4489fb96a9cf71c7056ea3f6a8b1505593105;hb=8418c7e51974060a1c724e25d700d72fb437174b;hp=63bdb43a84d223c504a759bb14bf45973c8b2892;hpb=64bcc415f271884183f91410ed25ba85c86f1fe8;p=imagemagick

diff --git a/coders/tiff.c b/coders/tiff.c
index 63bdb43a8..5bf4489fb 100644
--- a/coders/tiff.c
+++ b/coders/tiff.c
@@ -1844,6 +1844,74 @@ RestoreMSCWarning
 static TIFFExtendProc
   tag_extender = (TIFFExtendProc) NULL;
 
+static void TIFFIgnoreTags(TIFF *tiff)
+{
+  char
+    *q;
+
+  const char
+    *p,
+    *tags;
+
+  Image
+   *image;
+
+  register ssize_t
+    i;
+
+  size_t
+    count;
+
+  TIFFFieldInfo
+    *ignore;
+
+  if (TIFFGetReadProc(tiff) != TIFFReadBlob)
+    return;
+  image=(Image *)TIFFClientdata(tiff);
+  tags=GetImageArtifact(image,"tiff:ignore-tags");
+  if (tags == (const char *) NULL)
+    return;
+  count=0;
+  p=tags;
+  while (*p != '\0')
+  {
+    while ((isspace((int) ((unsigned char) *p)) != 0))
+      p++;
+
+    (void) strtol(p,&q,10);
+    if (p == q)
+      return;
+
+    p=q;
+    count++;
+
+    while ((isspace((int) ((unsigned char) *p)) != 0) || (*p == ','))
+      p++;
+  }
+  if (count == 0)
+    return;
+  i=0;
+  p=tags;
+  ignore=(TIFFFieldInfo *) AcquireQuantumMemory(count,sizeof(*ignore));
+  // This also sets field_bit to 0 (FIELD_IGNORE)
+  ResetMagickMemory(ignore,0,count*sizeof(*ignore));
+  while (*p != '\0')
+  {
+    while ((isspace((int) ((unsigned char) *p)) != 0))
+      p++;
+
+    ignore[i].field_tag=(ttag_t) strtol(p,&q,10);
+
+    p=q;
+    i++;
+
+    while ((isspace((int) ((unsigned char) *p)) != 0) || (*p == ','))
+      p++;
+  }
+  (void) TIFFMergeFieldInfo(tiff,ignore,(uint32) count);
+  ignore=(TIFFFieldInfo *) RelinquishMagickMemory(ignore);
+}
+
 static void TIFFTagExtender(TIFF *tiff)
 {
   static const TIFFFieldInfo
@@ -1859,6 +1927,7 @@ static void TIFFTagExtender(TIFF *tiff)
     sizeof(*TIFFExtensions));
   if (tag_extender != (TIFFExtendProc) NULL)
     (*tag_extender)(tiff);
+  TIFFIgnoreTags(tiff);
 }
 #endif
 
@@ -2795,6 +2864,8 @@ static MagickBooleanType WriteTIFFImage(const ImageInfo *image_info,
         (image_info->type != OptimizeType))
       (void) SetImageType(image,image_info->type,exception);
     compression=UndefinedCompression;
+    if (image->compression != JPEGCompression)
+      compression=image->compression;
     if (image_info->compression != UndefinedCompression)
       compression=image_info->compression;
     switch (compression)
@@ -3001,8 +3072,6 @@ static MagickBooleanType WriteTIFFImage(const ImageInfo *image_info,
                 }
           }
       }
-    if (photometric == PHOTOMETRIC_RGB)
-      (void) TransformImageColorspace(image,sRGBColorspace,exception);
     switch (image->endian)
     {
       case LSBEndian:
@@ -3210,7 +3279,7 @@ static MagickBooleanType WriteTIFFImage(const ImageInfo *image_info,
     if (rows_per_strip < 1)
       rows_per_strip=1;
     if ((image->rows/rows_per_strip) >= (1UL << 15))
-      rows_per_strip=(image->rows >> 15);
+      rows_per_strip=(uint32) (image->rows >> 15);
     (void) TIFFSetField(tiff,TIFFTAG_ROWSPERSTRIP,rows_per_strip);
     if ((image->resolution.x != 0.0) && (image->resolution.y != 0.0))
       {