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[imagemagick] / coders / icon.c

diff --git a/coders/icon.c b/coders/icon.c
index 3fdc256909781c184032228268d0ee844a98202e..35c09aa711d83f079c082e42646593f56abe98d9 100644 (file)
--- a/coders/icon.c
+++ b/coders/icon.c
@@ -40,6 +40,7 @@
   Include declarations.
 */
 #include "MagickCore/studio.h"
+#include "MagickCore/artifact.h"
 #include "MagickCore/blob.h"
 #include "MagickCore/blob-private.h"
 #include "MagickCore/cache.h"
@@ -861,7 +862,8 @@ static MagickBooleanType WriteICONImage(const ImageInfo *image_info,
   next=image;
   do
   {
-    if (next->compression == ZipCompression)
+    if ((next->columns > 256L) && (next->rows > 256L) &&
+        (next->compression == ZipCompression))
       {
         Image
           *write_image;
@@ -883,6 +885,11 @@ static MagickBooleanType WriteICONImage(const ImageInfo *image_info,
           return(MagickFalse);
         write_info=CloneImageInfo(image_info);
         (void) CopyMagickString(write_info->filename,"PNG:",MaxTextExtent);
+        /*
+          Don't write any ancillary chunks except for gAMA and tRNS.
+        */
+        (void) SetImageArtifact(write_image,"png:include-chunk",
+           "none,trns,gama");
         png=(unsigned char *) ImageToBlob(write_info,write_image,&length,
           exception);
         write_image=DestroyImage(write_image);
@@ -906,7 +913,7 @@ static MagickBooleanType WriteICONImage(const ImageInfo *image_info,
           Initialize ICON raster file header.
         */
         if (next->colorspace != RGBColorspace)
-          (void) TransformImageColorspace(next,RGBColorspace,exception);
+          (void) TransformImageColorspace(next,sRGBColorspace,exception);
         icon_info.file_size=14+12+28;
         icon_info.offset_bits=icon_info.file_size;
         icon_info.compression=BI_RGB;