From: cristy <urban-warrior@git.imagemagick.org>
Date: Thu, 21 Jun 2012 13:02:48 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: 7.0.1-0~5375
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7fb2652ba366fc984d1dbb0c66560b91c57dab78;p=imagemagick

---

diff --git a/coders/png.c b/coders/png.c
index 8d92d1ffb..f3d83d101 100644
--- a/coders/png.c
+++ b/coders/png.c
@@ -1164,59 +1164,6 @@ static inline ssize_t MagickMin(const ssize_t x,const ssize_t y)
 
   return(y);
 }
-
-
-/*
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%                                                                             %
-%                                                                             %
-%                                                                             %
-%   I m a g e I s G r a y                                                     %
-%                                                                             %
-%                                                                             %
-%                                                                             %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%                                                                             %
-%   Like IsImageGray except does not change DirectClass to PseudoClass        %
-%                                                                             %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-*/
-static MagickBooleanType ImageIsGray(Image *image,ExceptionInfo *exception)
-{
-  register const Quantum
-    *p;
-
-  register ssize_t
-    i,
-    x,
-    y;
-
-  assert(image != (Image *) NULL);
-  assert(image->signature == MagickSignature);
-  if (image->debug != MagickFalse)
-    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
-
-  if (image->storage_class == PseudoClass)
-    {
-      for (i=0; i < (ssize_t) image->colors; i++)
-        if (IsPixelInfoGray(image->colormap+i) == MagickFalse)
-          return(MagickFalse);
-      return(MagickTrue);
-    }
-  for (y=0; y < (ssize_t) image->rows; y++)
-  {
-    p=GetVirtualPixels(image,0,y,image->columns,1,exception);
-    if (p == (const Quantum *) NULL)
-      return(MagickFalse);
-    for (x=(ssize_t) image->columns-1; x >= 0; x--)
-    {
-       if (IsPixelGray(image,p) == MagickFalse)
-          return(MagickFalse);
-       p+=GetPixelChannels(image);
-    }
-  }
-  return(MagickTrue);
-}
 #endif /* PNG_LIBPNG_VER > 10011 */
 #endif /* MAGICKCORE_PNG_DELEGATE */
 
@@ -8309,6 +8256,9 @@ static MagickBooleanType WriteOnePNGImage(MngInfo *mng_info,
      if (mng_info->write_png_colortype != 7) /* We won't need this info */
        {
          ping_have_color=MagickFalse;
+         if ((IsGrayColorspace(image->colorspace) == MagickFalse) &&
+             (IsRGBColorspace(image->colorspace) == MagickFalse))
+           ping_have_color=MagickTrue;
          ping_have_non_bw=MagickFalse;
 
          if(image_colors > 256)
@@ -11786,7 +11736,7 @@ static MagickBooleanType WriteOneJNGImage(MngInfo *mng_info,
 
   /* Check if image is grayscale. */
   if (image_info->type != TrueColorMatteType && image_info->type !=
-    TrueColorType && ImageIsGray(image,exception))
+    TrueColorType && IsImageGray(image,exception))
     jng_color_type-=2;
 
   if (logging != MagickFalse)
@@ -12570,7 +12520,7 @@ static MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image,
 
         if (need_local_plte == 0)
           {
-            if (ImageIsGray(image,exception) == MagickFalse)
+            if (IsImageGray(image,exception) == MagickFalse)
               all_images_are_gray=MagickFalse;
             mng_info->equal_palettes=PalettesAreEqual(image,next_image);
             if (use_global_plte == 0)