]> granicus.if.org Git - imagemagick/blobdiff - coders/pnm.c
...
[imagemagick] / coders / pnm.c
index 0d1c0b9b724ca9dbb8f8c1f564bdef66bd5436ef..3ee13e8c456b9681b4c64ea127a614b839352ec6 100644 (file)
 %               Read/Write PBMPlus Portable Anymap Image Format               %
 %                                                                             %
 %                              Software Design                                %
-%                                John Cristy                                  %
+%                                   Cristy                                    %
 %                                 July 1992                                   %
 %                                                                             %
 %                                                                             %
-%  Copyright 1999-2013 ImageMagick Studio LLC, a non-profit organization      %
+%  Copyright 1999-2018 ImageMagick Studio LLC, a non-profit organization      %
 %  dedicated to making software imaging solutions freely available.           %
 %                                                                             %
 %  You may not use this file except in compliance with the License.  You may  %
 %  obtain a copy of the License at                                            %
 %                                                                             %
-%    http://www.imagemagick.org/script/license.php                            %
+%    https://www.imagemagick.org/script/license.php                           %
 %                                                                             %
 %  Unless required by applicable law or agreed to in writing, software        %
 %  distributed under the License is distributed on an "AS IS" BASIS,          %
@@ -136,19 +136,7 @@ static MagickBooleanType IsPNM(const unsigned char *magick,const size_t extent)
 %
 */
 
-static inline ssize_t ConstrainPixel(Image *image,const ssize_t offset,
-  const size_t extent,ExceptionInfo *exception)
-{
-  if ((offset < 0) || (offset > (ssize_t) extent))
-    {
-      (void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError,
-        "InvalidPixel","`%s'",image->filename);
-      return(0);
-    }
-  return(offset);
-}
-
-static void PNMComment(Image *image,ExceptionInfo *exception)
+static int PNMComment(Image *image,ExceptionInfo *exception)
 {
   int
     c;
@@ -166,14 +154,14 @@ static void PNMComment(Image *image,ExceptionInfo *exception)
     Read comment.
   */
   comment=AcquireString(GetImageProperty(image,"comment",exception));
-  extent=strlen(comment);
   p=comment+strlen(comment);
-  for (c='#'; (c != EOF) && (c != (int) '\n'); p++)
+  extent=strlen(comment)+MagickPathExtent;
+  for (c='#'; (c != EOF) && (c != (int) '\n') && (c != (int) '\r'); p++)
   {
     if ((size_t) (p-comment+1) >= extent)
       {
         extent<<=1;
-        comment=(char *) ResizeQuantumMemory(comment,extent+MaxTextExtent,
+        comment=(char *) ResizeQuantumMemory(comment,extent+MagickPathExtent,
           sizeof(*comment));
         if (comment == (char *) NULL)
           break;
@@ -187,18 +175,19 @@ static void PNMComment(Image *image,ExceptionInfo *exception)
       }
   }
   if (comment == (char *) NULL)
-    return;
+    return(c);
   (void) SetImageProperty(image,"comment",comment,exception);
   comment=DestroyString(comment);
+  return(c);
 }
 
-static size_t PNMInteger(Image *image,const unsigned int base,
+static unsigned int PNMInteger(Image *image,const unsigned int base,
   ExceptionInfo *exception)
 {
   int
     c;
 
-  size_t
+  unsigned int
     value;
 
   /*
@@ -210,22 +199,28 @@ static size_t PNMInteger(Image *image,const unsigned int base,
     if (c == EOF)
       return(0);
     if (c == (int) '#')
-      PNMComment(image,exception);
-  } while (isdigit(c) == MagickFalse);
+      c=PNMComment(image,exception);
+  } while ((c == ' ') || (c == '\t') || (c == '\n') || (c == '\r'));
   if (base == 2)
-    return((size_t) (c-(int) '0'));
+    return((unsigned int) (c-(int) '0'));
   /*
     Evaluate number.
   */
   value=0;
-  do
+  while (isdigit(c) != 0)
   {
-    value*=10;
-    value+=c-(int) '0';
+    if (value <= (unsigned int) (INT_MAX/10))
+      {
+        value*=10;
+        if (value <= (unsigned int) (INT_MAX-(c-(int) '0')))
+          value+=c-(int) '0';
+      }
     c=ReadBlobByte(image);
     if (c == EOF)
-      return(value);
-  } while (isdigit(c) != MagickFalse);
+      return(0);
+  }
+  if (c == (int) '#')
+    c=PNMComment(image,exception);
   return(value);
 }
 
@@ -243,9 +238,6 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
   MagickBooleanType
     status;
 
-  Quantum
-    *scale;
-
   QuantumAny
     max_value;
 
@@ -255,9 +247,6 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
   QuantumType
     quantum_type;
 
-  register ssize_t
-    i;
-
   size_t
     depth,
     extent,
@@ -272,12 +261,12 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
     Open image file.
   */
   assert(image_info != (const ImageInfo *) NULL);
-  assert(image_info->signature == MagickSignature);
+  assert(image_info->signature == MagickCoreSignature);
   if (image_info->debug != MagickFalse)
     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
       image_info->filename);
   assert(exception != (ExceptionInfo *) NULL);
-  assert(exception->signature == MagickSignature);
+  assert(exception->signature == MagickCoreSignature);
   image=AcquireImage(image_info,exception);
   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
   if (status == MagickFalse)
@@ -305,12 +294,12 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
         /*
           PBM, PGM, PPM, and PNM.
         */
-        image->columns=PNMInteger(image,10,exception);
-        image->rows=PNMInteger(image,10,exception);
+        image->columns=(size_t) PNMInteger(image,10,exception);
+        image->rows=(size_t) PNMInteger(image,10,exception);
         if ((format == 'f') || (format == 'F'))
           {
             char
-              scale[MaxTextExtent];
+              scale[MagickPathExtent];
 
             (void) ReadBlobString(image,scale);
             quantum_scale=StringToDouble(scale,(char **) NULL);
@@ -320,14 +309,14 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
             if ((format == '1') || (format == '4'))
               max_value=1;  /* bitmap */
             else
-              max_value=PNMInteger(image,10,exception);
+              max_value=(QuantumAny) PNMInteger(image,10,exception);
           }
       }
     else
       {
         char
-          keyword[MaxTextExtent],
-          value[MaxTextExtent];
+          keyword[MagickPathExtent],
+          value[MagickPathExtent];
 
         int
           c;
@@ -347,7 +336,7 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
               /*
                 Comment.
               */
-              PNMComment(image,exception);
+              c=PNMComment(image,exception);
               c=ReadBlobByte(image);
               while (isspace((int) ((unsigned char) c)) != 0)
                 c=ReadBlobByte(image);
@@ -355,7 +344,7 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
           p=keyword;
           do
           {
-            if ((size_t) (p-keyword) < (MaxTextExtent-1))
+            if ((size_t) (p-keyword) < (MagickPathExtent-1))
               *p++=c;
             c=ReadBlobByte(image);
           } while (isalnum(c));
@@ -367,7 +356,7 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
           p=value;
           while (isalnum(c) || (c == '_'))
           {
-            if ((size_t) (p-value) < (MaxTextExtent-1))
+            if ((size_t) (p-value) < (MagickPathExtent-1))
               *p++=c;
             c=ReadBlobByte(image);
           }
@@ -429,18 +418,21 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
       }
     if ((image->columns == 0) || (image->rows == 0))
       ThrowReaderException(CorruptImageError,"NegativeOrZeroImageSize");
-    if (max_value >= 65536)
+    if ((max_value == 0) || (max_value > 4294967295UL))
       ThrowReaderException(CorruptImageError,"ImproperImageHeader");
     for (depth=1; GetQuantumRange(depth) < max_value; depth++) ;
     image->depth=depth;
     if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
       if (image->scene >= (image_info->scene+image_info->number_scenes-1))
         break;
+    status=SetImageExtent(image,image->columns,image->rows,exception);
+    if (status == MagickFalse)
+      return(DestroyImageList(image));
     /*
       Convert PNM pixels to runextent-encoded MIFF packets.
     */
-    status=MagickTrue;
     row=0;
+    y=0;
     switch (format)
     {
       case '1':
@@ -455,7 +447,7 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
             x;
 
           register Quantum
-            *restrict q;
+            *magick_restrict q;
 
           q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
           if (q == (Quantum *) NULL)
@@ -464,6 +456,8 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
           {
             SetPixelGray(image,PNMInteger(image,2,exception) == 0 ?
               QuantumRange : 0,q);
+            if (EOFBlob(image) != MagickFalse)
+              break;
             q+=GetPixelChannels(image);
           }
           if (SyncAuthenticPixels(image,exception) == MagickFalse)
@@ -475,50 +469,39 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
               if (status == MagickFalse)
                 break;
             }
+          if (EOFBlob(image) != MagickFalse)
+            break;
         }
         image->type=BilevelType;
         break;
       }
       case '2':
       {
-        size_t
+        Quantum
           intensity;
 
         /*
           Convert PGM image to pixel packets.
         */
         (void) SetImageColorspace(image,GRAYColorspace,exception);
-        scale=(Quantum *) NULL;
-        if (max_value != (1U*QuantumRange))
-          {
-            /*
-              Compute pixel scaling table.
-            */
-            scale=(Quantum *) AcquireQuantumMemory((size_t) max_value+1UL,
-              sizeof(*scale));
-            if (scale == (Quantum *) NULL)
-              ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
-            for (i=0; i <= (ssize_t) max_value; i++)
-              scale[i]=(Quantum) (((double) QuantumRange*i)/max_value+0.5);
-          }
         for (y=0; y < (ssize_t) image->rows; y++)
         {
           register ssize_t
             x;
 
           register Quantum
-            *restrict q;
+            *magick_restrict q;
 
           q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
           if (q == (Quantum *) NULL)
             break;
           for (x=0; x < (ssize_t) image->columns; x++)
           {
-            intensity=PNMInteger(image,10,exception);
-            SetPixelGray(image,(Quantum) intensity,q);
-            if (scale != (Quantum *) NULL)
-              SetPixelGray(image,scale[ConstrainPixel(image,(ssize_t) intensity,
-                (size_t) max_value,exception)],q);
+            intensity=ScaleAnyToQuantum(PNMInteger(image,10,exception),
+              max_value);
+            if (EOFBlob(image) != MagickFalse)
+              break;
+            SetPixelGray(image,intensity,q);
             q+=GetPixelChannels(image);
           }
           if (SyncAuthenticPixels(image,exception) == MagickFalse)
@@ -530,61 +513,41 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
               if (status == MagickFalse)
                 break;
             }
+          if (EOFBlob(image) != MagickFalse)
+            break;
         }
         image->type=GrayscaleType;
-        if (scale != (Quantum *) NULL)
-          scale=(Quantum *) RelinquishMagickMemory(scale);
         break;
       }
       case '3':
       {
-        PixelInfo
-          pixel;
-
         /*
           Convert PNM image to pixel packets.
         */
-        scale=(Quantum *) NULL;
-        if (max_value != (1U*QuantumRange))
-          {
-            /*
-              Compute pixel scaling table.
-            */
-            scale=(Quantum *) AcquireQuantumMemory((size_t) max_value+1UL,
-              sizeof(*scale));
-            if (scale == (Quantum *) NULL)
-              ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
-            for (i=0; i <= (ssize_t) max_value; i++)
-              scale[i]=(Quantum) (((double) QuantumRange*i)/max_value+0.5);
-          }
         for (y=0; y < (ssize_t) image->rows; y++)
         {
           register ssize_t
             x;
 
           register Quantum
-            *restrict q;
+            *magick_restrict q;
 
           q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
           if (q == (Quantum *) NULL)
             break;
           for (x=0; x < (ssize_t) image->columns; x++)
           {
-            pixel.red=(double) PNMInteger(image,10,exception);
-            pixel.green=(double) PNMInteger(image,10,exception);
-            pixel.blue=(double) PNMInteger(image,10,exception);
-            if (scale != (Quantum *) NULL)
-              {
-                pixel.red=(double) scale[ConstrainPixel(image,(ssize_t)
-                  pixel.red,(size_t) max_value,exception)];
-                pixel.green=(double) scale[ConstrainPixel(image,
-                  (ssize_t) pixel.green,(size_t) max_value,exception)];
-                pixel.blue=(double) scale[ConstrainPixel(image,(ssize_t)
-                  pixel.blue,(size_t) max_value,exception)];
-              }
-            SetPixelRed(image,ClampToQuantum(pixel.red),q);
-            SetPixelGreen(image,ClampToQuantum(pixel.green),q);
-            SetPixelBlue(image,ClampToQuantum(pixel.blue),q);
+            Quantum
+              pixel;
+
+            pixel=ScaleAnyToQuantum(PNMInteger(image,10,exception),max_value);
+            if (EOFBlob(image) != MagickFalse)
+              break;
+            SetPixelRed(image,pixel,q);
+            pixel=ScaleAnyToQuantum(PNMInteger(image,10,exception),max_value);
+            SetPixelGreen(image,pixel,q);
+            pixel=ScaleAnyToQuantum(PNMInteger(image,10,exception),max_value);
+            SetPixelBlue(image,pixel,q);
             q+=GetPixelChannels(image);
           }
           if (SyncAuthenticPixels(image,exception) == MagickFalse)
@@ -596,9 +559,9 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
               if (status == MagickFalse)
                 break;
             }
+          if (EOFBlob(image) != MagickFalse)
+            break;
         }
-        if (scale != (Quantum *) NULL)
-          scale=(Quantum *) RelinquishMagickMemory(scale);
         break;
       }
       case '4':
@@ -617,11 +580,14 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
         extent=GetQuantumExtent(image,quantum_info,quantum_type);
         for (y=0; y < (ssize_t) image->rows; y++)
         {
+          const unsigned char
+            *pixels;
+
           MagickBooleanType
             sync;
 
           register Quantum
-            *restrict q;
+            *magick_restrict q;
 
           ssize_t
             count,
@@ -630,46 +596,34 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
           size_t
             length;
 
-          unsigned char
-            *pixels;
-
-          if (status == MagickFalse)
-            continue;
-          pixels=GetQuantumPixels(quantum_info);
-          {
-            count=ReadBlob(image,extent,pixels);
-            if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
-                (image->previous == (Image *) NULL))
-              {
-                MagickBooleanType
-                  proceed;
-
-                proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType)
-                  row,image->rows);
-                if (proceed == MagickFalse)
-                  status=MagickFalse;
-              }
-            offset=row++;
-          }
+          pixels=(unsigned char *) ReadBlobStream(image,extent,
+            GetQuantumPixels(quantum_info),&count);
           if (count != (ssize_t) extent)
-            status=MagickFalse;
-          q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception);
-          if (q == (Quantum *) NULL)
+            break;
+          if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
+              (image->previous == (Image *) NULL))
             {
-              status=MagickFalse;
-              continue;
+              MagickBooleanType
+                proceed;
+
+              proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType)
+                row,image->rows);
+              if (proceed == MagickFalse)
+                break;
             }
+          offset=row++;
+          q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception);
+          if (q == (Quantum *) NULL)
+            break;
           length=ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
             quantum_type,pixels,exception);
           if (length != extent)
-            status=MagickFalse;
+            break;
           sync=SyncAuthenticPixels(image,exception);
           if (sync == MagickFalse)
-            status=MagickFalse;
+            break;
         }
         quantum_info=DestroyQuantumInfo(quantum_info);
-        if (status == MagickFalse)
-          ThrowReaderException(CorruptImageError,"UnableToReadImageData");
         SetQuantumImageType(image,quantum_type);
         break;
       }
@@ -680,93 +634,112 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
         */
         (void) SetImageColorspace(image,GRAYColorspace,exception);
         quantum_type=GrayQuantum;
-        extent=(image->depth <= 8 ? 1 : 2)*image->columns;
+        if (image->depth <= 8)
+          extent=image->columns;
+        else
+          if (image->depth <= 16)
+            extent=2*image->columns;
+          else
+            extent=4*image->columns;
         quantum_info=AcquireQuantumInfo(image_info,image);
         if (quantum_info == (QuantumInfo *) NULL)
           ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
         for (y=0; y < (ssize_t) image->rows; y++)
         {
+          const unsigned char
+            *pixels;
+
           MagickBooleanType
             sync;
 
           register const unsigned char
-            *restrict p;
+            *magick_restrict p;
 
           register ssize_t
             x;
 
           register Quantum
-            *restrict q;
+            *magick_restrict q;
 
           ssize_t
             count,
             offset;
 
-          unsigned char
-            *pixels;
-
-          if (status == MagickFalse)
-            continue;
-          pixels=GetQuantumPixels(quantum_info);
-          {
-            count=ReadBlob(image,extent,pixels);
-            if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
-                (image->previous == (Image *) NULL))
-              {
-                MagickBooleanType
-                  proceed;
-
-                proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType)
-                  row,image->rows);
-                if (proceed == MagickFalse)
-                  status=MagickFalse;
-              }
-            offset=row++;
-          }
+          pixels=(unsigned char *) ReadBlobStream(image,extent,
+            GetQuantumPixels(quantum_info),&count);
           if (count != (ssize_t) extent)
-            status=MagickFalse;
+            break;
+          if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
+              (image->previous == (Image *) NULL))
+            {
+              MagickBooleanType
+                proceed;
+
+              proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType)
+                row,image->rows);
+              if (proceed == MagickFalse)
+                break;
+            }
+          offset=row++;
           q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception);
           if (q == (Quantum *) NULL)
+            break;
+          p=pixels;
+          switch (image->depth)
+          {
+            case 8:
+            case 16:
+            case 32:
             {
-              status=MagickFalse;
-              continue;
+              (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
+                quantum_type,pixels,exception);
+              break;
             }
-          p=pixels;
-          if ((image->depth == 8) || (image->depth == 16))
-            (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
-              quantum_type,pixels,exception);
-          else
-            if (image->depth <= 8)
-              {
-                unsigned char
-                  pixel;
+            default:
+            {
+              unsigned int
+                pixel;
 
-                for (x=0; x < (ssize_t) image->columns; x++)
+              if (image->depth <= 8)
                 {
-                  p=PushCharPixel(p,&pixel);
-                  SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),q);
-                  q+=GetPixelChannels(image);
-                }
-              }
-            else
-              {
-                unsigned short
-                  pixel;
+                  unsigned char
+                    pixel;
 
-                for (x=0; x < (ssize_t) image->columns; x++)
+                  for (x=0; x < (ssize_t) image->columns; x++)
+                  {
+                    p=PushCharPixel(p,&pixel);
+                    SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),q);
+                    q+=GetPixelChannels(image);
+                  }
+                  break;
+                }
+              if (image->depth <= 16)
                 {
-                  p=PushShortPixel(MSBEndian,p,&pixel);
-                  SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),q);
-                  q+=GetPixelChannels(image);
+                  unsigned short
+                    pixel;
+
+                  for (x=0; x < (ssize_t) image->columns; x++)
+                  {
+                    p=PushShortPixel(MSBEndian,p,&pixel);
+                    SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),q);
+                    q+=GetPixelChannels(image);
+                  }
+                  break;
                 }
+              for (x=0; x < (ssize_t) image->columns; x++)
+              {
+                p=PushLongPixel(MSBEndian,p,&pixel);
+                SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),q);
+                q+=GetPixelChannels(image);
               }
+              break;
+            }
+          }
           sync=SyncAuthenticPixels(image,exception);
           if (sync == MagickFalse)
-            status=MagickFalse;
+            break;
         }
         quantum_info=DestroyQuantumInfo(quantum_info);
-        if (status == MagickFalse)
-          ThrowReaderException(CorruptImageError,"UnableToReadImageData");
         SetQuantumImageType(image,quantum_type);
         break;
       }
@@ -783,80 +756,100 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
         (void) SetQuantumEndian(image,quantum_info,MSBEndian);
         for (y=0; y < (ssize_t) image->rows; y++)
         {
+          const unsigned char
+            *pixels;
+
           MagickBooleanType
             sync;
 
           register const unsigned char
-            *restrict p;
+            *magick_restrict p;
 
           register ssize_t
             x;
 
           register Quantum
-            *restrict q;
+            *magick_restrict q;
 
           ssize_t
             count,
             offset;
 
-          unsigned char
-            *pixels;
-
-          if (status == MagickFalse)
-            continue;
-          pixels=GetQuantumPixels(quantum_info);
-          {
-            count=ReadBlob(image,extent,pixels);
-            if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
-                (image->previous == (Image *) NULL))
-              {
-                MagickBooleanType
-                  proceed;
-
-                proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType)
-                  row,image->rows);
-                if (proceed == MagickFalse)
-                  status=MagickFalse;
-              }
-            offset=row++;
-          }
+          pixels=(unsigned char *) ReadBlobStream(image,extent,
+            GetQuantumPixels(quantum_info),&count);
           if (count != (ssize_t) extent)
-            status=MagickFalse;
-          q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception);
-          if (q == (Quantum *) NULL)
+            break;
+          if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
+              (image->previous == (Image *) NULL))
             {
-              status=MagickFalse;
-              continue;
+              MagickBooleanType
+                proceed;
+
+              proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType)
+                row,image->rows);
+              if (proceed == MagickFalse)
+                break;
             }
+          offset=row++;
+          q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception);
+          if (q == (Quantum *) NULL)
+            break;
           p=pixels;
-          if (image->depth == 8)
-            for (x=0; x < (ssize_t) image->columns; x++)
+          switch (image->depth)
+          {
+            case 8:
             {
-              SetPixelRed(image,ScaleCharToQuantum(*p++),q);
-              SetPixelGreen(image,ScaleCharToQuantum(*p++),q);
-              SetPixelBlue(image,ScaleCharToQuantum(*p++),q);
-              SetPixelAlpha(image,OpaqueAlpha,q);
-              q+=GetPixelChannels(image);
+              for (x=0; x < (ssize_t) image->columns; x++)
+              {
+                SetPixelRed(image,ScaleCharToQuantum(*p++),q);
+                SetPixelGreen(image,ScaleCharToQuantum(*p++),q);
+                SetPixelBlue(image,ScaleCharToQuantum(*p++),q);
+                SetPixelAlpha(image,OpaqueAlpha,q);
+                q+=GetPixelChannels(image);
+              }
+              break;
             }
-          else
-            if (image->depth == 16)
+            case 16:
+            {
+              unsigned short
+                pixel;
+
+              for (x=0; x < (ssize_t) image->columns; x++)
               {
-                unsigned short
-                  pixel;
+                p=PushShortPixel(MSBEndian,p,&pixel);
+                SetPixelRed(image,ScaleShortToQuantum(pixel),q);
+                p=PushShortPixel(MSBEndian,p,&pixel);
+                SetPixelGreen(image,ScaleShortToQuantum(pixel),q);
+                p=PushShortPixel(MSBEndian,p,&pixel);
+                SetPixelBlue(image,ScaleShortToQuantum(pixel),q);
+                SetPixelAlpha(image,OpaqueAlpha,q);
+                q+=GetPixelChannels(image);
+              }
+              break;
+            }
+            case 32:
+            {
+              unsigned int
+                pixel;
 
-                for (x=0; x < (ssize_t) image->columns; x++)
-                {
-                  p=PushShortPixel(MSBEndian,p,&pixel);
-                  SetPixelRed(image,ScaleShortToQuantum(pixel),q);
-                  p=PushShortPixel(MSBEndian,p,&pixel);
-                  SetPixelGreen(image,ScaleShortToQuantum(pixel),q);
-                  p=PushShortPixel(MSBEndian,p,&pixel);
-                  SetPixelBlue(image,ScaleShortToQuantum(pixel),q);
-                  SetPixelAlpha(image,OpaqueAlpha,q);
-                  q+=GetPixelChannels(image);
-                }
+              for (x=0; x < (ssize_t) image->columns; x++)
+              {
+                p=PushLongPixel(MSBEndian,p,&pixel);
+                SetPixelRed(image,ScaleLongToQuantum(pixel),q);
+                p=PushLongPixel(MSBEndian,p,&pixel);
+                SetPixelGreen(image,ScaleLongToQuantum(pixel),q);
+                p=PushLongPixel(MSBEndian,p,&pixel);
+                SetPixelBlue(image,ScaleLongToQuantum(pixel),q);
+                SetPixelAlpha(image,OpaqueAlpha,q);
+                q+=GetPixelChannels(image);
               }
-            else
+              break;
+            }
+            default:
+            {
+              unsigned int
+                pixel;
+
               if (image->depth <= 8)
                 {
                   unsigned char
@@ -873,8 +866,9 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
                     SetPixelAlpha(image,OpaqueAlpha,q);
                     q+=GetPixelChannels(image);
                   }
+                  break;
                 }
-              else
+              if (image->depth <= 16)
                 {
                   unsigned short
                     pixel;
@@ -890,14 +884,27 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
                     SetPixelAlpha(image,OpaqueAlpha,q);
                     q+=GetPixelChannels(image);
                   }
+                  break;
                 }
+              for (x=0; x < (ssize_t) image->columns; x++)
+              {
+                p=PushLongPixel(MSBEndian,p,&pixel);
+                SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q);
+                p=PushLongPixel(MSBEndian,p,&pixel);
+                SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),q);
+                p=PushLongPixel(MSBEndian,p,&pixel);
+                SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),q);
+                SetPixelAlpha(image,OpaqueAlpha,q);
+                q+=GetPixelChannels(image);
+              }
+              break;
+            }
+          }
           sync=SyncAuthenticPixels(image,exception);
           if (sync == MagickFalse)
-            status=MagickFalse;
+            break;
         }
         quantum_info=DestroyQuantumInfo(quantum_info);
-        if (status == MagickFalse)
-          ThrowReaderException(CorruptImageError,"UnableToReadImageData");
         break;
       }
       case '7':
@@ -928,216 +935,308 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
             break;
           }
         }
-        if (image->alpha_trait == BlendPixelTrait)
+        if (image->alpha_trait != UndefinedPixelTrait)
           channels++;
-        extent=channels*(image->depth <= 8 ? 1 : 2)*image->columns;
+        if (image->depth <= 8)
+          extent=channels*image->columns;
+        else
+          if (image->depth <= 16)
+            extent=2*channels*image->columns;
+          else
+            extent=4*channels*image->columns;
         quantum_info=AcquireQuantumInfo(image_info,image);
         if (quantum_info == (QuantumInfo *) NULL)
           ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
         for (y=0; y < (ssize_t) image->rows; y++)
         {
+          const unsigned char
+            *pixels;
+
           MagickBooleanType
             sync;
 
           register const unsigned char
-            *restrict p;
+            *magick_restrict p;
 
           register ssize_t
             x;
 
           register Quantum
-            *restrict q;
+            *magick_restrict q;
 
           ssize_t
             count,
             offset;
 
-          unsigned char
-            *pixels;
-
-          if (status == MagickFalse)
-            continue;
-          pixels=GetQuantumPixels(quantum_info);
-          {
-            count=ReadBlob(image,extent,pixels);
-            if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
-                (image->previous == (Image *) NULL))
-              {
-                MagickBooleanType
-                  proceed;
-
-                proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType)
-                  row,image->rows);
-                if (proceed == MagickFalse)
-                  status=MagickFalse;
-              }
-            offset=row++;
-          }
+          pixels=(unsigned char *) ReadBlobStream(image,extent,
+            GetQuantumPixels(quantum_info),&count);
           if (count != (ssize_t) extent)
-            status=MagickFalse;
+            break;
+          if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
+              (image->previous == (Image *) NULL))
+            {
+              MagickBooleanType
+                proceed;
+
+              proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType)
+                row,image->rows);
+              if (proceed == MagickFalse)
+                break;
+            }
+          offset=row++;
           q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception);
           if (q == (Quantum *) NULL)
+            break;
+          p=pixels;
+          switch (image->depth)
+          {
+            case 8:
+            case 16:
+            case 32:
             {
-              status=MagickFalse;
-              continue;
+              (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
+                quantum_type,pixels,exception);
+              break;
             }
-          p=pixels;
-          if ((image->depth == 8) || (image->depth == 16))
-            (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
-              quantum_type,pixels,exception);
-          else
-            switch (quantum_type)
+            default:
             {
-              case GrayQuantum:
-              case GrayAlphaQuantum:
+              switch (quantum_type)
               {
-                if (image->depth <= 8)
-                  {
-                    unsigned char
-                      pixel;
+                case GrayQuantum:
+                case GrayAlphaQuantum:
+                {
+                  unsigned int
+                    pixel;
 
-                    for (x=0; x < (ssize_t) image->columns; x++)
+                  if (image->depth <= 8)
                     {
-                      p=PushCharPixel(p,&pixel);
-                      SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      SetPixelAlpha(image,OpaqueAlpha,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          p=PushCharPixel(p,&pixel);
-                          SetPixelAlpha(image,ScaleAnyToQuantum(pixel,max_value),q);
-                        }
-                      q+=GetPixelChannels(image);
+                      unsigned char
+                        pixel;
+
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        p=PushCharPixel(p,&pixel);
+                        SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        SetPixelAlpha(image,OpaqueAlpha,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            p=PushCharPixel(p,&pixel);
+                            if (image->depth != 1)
+                              SetPixelAlpha(image,ScaleAnyToQuantum(pixel,
+                                max_value),q);
+                            else
+                              SetPixelAlpha(image,QuantumRange-
+                                ScaleAnyToQuantum(pixel,max_value),q);
+                          }
+                        q+=GetPixelChannels(image);
+                      }
+                      break;
                     }
-                  }
-                else
-                  {
-                    unsigned short
-                      pixel;
-
-                    for (x=0; x < (ssize_t) image->columns; x++)
+                  if (image->depth <= 16)
                     {
-                      p=PushShortPixel(MSBEndian,p,&pixel);
-                      SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      SetPixelAlpha(image,OpaqueAlpha,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          p=PushShortPixel(MSBEndian,p,&pixel);
-                          SetPixelAlpha(image,ScaleAnyToQuantum(pixel,max_value),q);
-                        }
-                      q+=GetPixelChannels(image);
+                      unsigned short
+                        pixel;
+
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        p=PushShortPixel(MSBEndian,p,&pixel);
+                        SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        SetPixelAlpha(image,OpaqueAlpha,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            p=PushShortPixel(MSBEndian,p,&pixel);
+                            SetPixelAlpha(image,ScaleAnyToQuantum(pixel,
+                              max_value),q);
+                          }
+                        q+=GetPixelChannels(image);
+                      }
+                      break;
                     }
-                  }
-                break;
-              }
-              case CMYKQuantum:
-              case CMYKAQuantum:
-              {
-                if (image->depth <= 8)
+                  for (x=0; x < (ssize_t) image->columns; x++)
                   {
-                    unsigned char
-                      pixel;
+                    p=PushLongPixel(MSBEndian,p,&pixel);
+                    SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),q);
+                    SetPixelAlpha(image,OpaqueAlpha,q);
+                    if (image->alpha_trait != UndefinedPixelTrait)
+                      {
+                        p=PushLongPixel(MSBEndian,p,&pixel);
+                        SetPixelAlpha(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                      }
+                    q+=GetPixelChannels(image);
+                  }
+                  break;
+                }
+                case CMYKQuantum:
+                case CMYKAQuantum:
+                {
+                  unsigned int
+                    pixel;
 
-                    for (x=0; x < (ssize_t) image->columns; x++)
+                  if (image->depth <= 8)
                     {
-                      p=PushCharPixel(p,&pixel);
-                      SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      p=PushCharPixel(p,&pixel);
-                      SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      p=PushCharPixel(p,&pixel);
-                      SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      p=PushCharPixel(p,&pixel);
-                      SetPixelBlack(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      SetPixelAlpha(image,OpaqueAlpha,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          p=PushCharPixel(p,&pixel);
-                          SetPixelAlpha(image,ScaleAnyToQuantum(pixel,max_value),q);
-                        }
-                      q+=GetPixelChannels(image);
+                      unsigned char
+                        pixel;
+
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        p=PushCharPixel(p,&pixel);
+                        SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q);
+                        p=PushCharPixel(p,&pixel);
+                        SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        p=PushCharPixel(p,&pixel);
+                        SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        p=PushCharPixel(p,&pixel);
+                        SetPixelBlack(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        SetPixelAlpha(image,OpaqueAlpha,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            p=PushCharPixel(p,&pixel);
+                            SetPixelAlpha(image,ScaleAnyToQuantum(pixel,
+                              max_value),q);
+                          }
+                        q+=GetPixelChannels(image);
+                      }
+                      break;
                     }
-                  }
-                else
-                  {
-                    unsigned short
-                      pixel;
-
-                    for (x=0; x < (ssize_t) image->columns; x++)
+                  if (image->depth <= 16)
                     {
-                      p=PushShortPixel(MSBEndian,p,&pixel);
-                      SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      p=PushShortPixel(MSBEndian,p,&pixel);
-                      SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      p=PushShortPixel(MSBEndian,p,&pixel);
-                      SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      p=PushShortPixel(MSBEndian,p,&pixel);
-                      SetPixelBlack(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      SetPixelAlpha(image,OpaqueAlpha,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          p=PushShortPixel(MSBEndian,p,&pixel);
-                          SetPixelAlpha(image,ScaleAnyToQuantum(pixel,max_value),q);
-                        }
-                      q+=GetPixelChannels(image);
+                      unsigned short
+                        pixel;
+
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        p=PushShortPixel(MSBEndian,p,&pixel);
+                        SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q);
+                        p=PushShortPixel(MSBEndian,p,&pixel);
+                        SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        p=PushShortPixel(MSBEndian,p,&pixel);
+                        SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        p=PushShortPixel(MSBEndian,p,&pixel);
+                        SetPixelBlack(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        SetPixelAlpha(image,OpaqueAlpha,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            p=PushShortPixel(MSBEndian,p,&pixel);
+                            SetPixelAlpha(image,ScaleAnyToQuantum(pixel,
+                              max_value),q);
+                          }
+                        q+=GetPixelChannels(image);
+                      }
                     }
-                  }
-                break;
-              }
-              default:
-              {
-                if (image->depth <= 8)
+                  for (x=0; x < (ssize_t) image->columns; x++)
                   {
-                    unsigned char
-                      pixel;
+                    p=PushLongPixel(MSBEndian,p,&pixel);
+                    SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q);
+                    p=PushLongPixel(MSBEndian,p,&pixel);
+                    SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),q);
+                    p=PushLongPixel(MSBEndian,p,&pixel);
+                    SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),q);
+                    p=PushLongPixel(MSBEndian,p,&pixel);
+                    SetPixelBlack(image,ScaleAnyToQuantum(pixel,max_value),q);
+                    SetPixelAlpha(image,OpaqueAlpha,q);
+                    if (image->alpha_trait != UndefinedPixelTrait)
+                      {
+                        p=PushLongPixel(MSBEndian,p,&pixel);
+                        SetPixelAlpha(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                      }
+                    q+=GetPixelChannels(image);
+                  }
+                  break;
+                }
+                default:
+                {
+                  unsigned int
+                    pixel;
 
-                    for (x=0; x < (ssize_t) image->columns; x++)
+                  if (image->depth <= 8)
                     {
-                      p=PushCharPixel(p,&pixel);
-                      SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      p=PushCharPixel(p,&pixel);
-                      SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      p=PushCharPixel(p,&pixel);
-                      SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      SetPixelAlpha(image,OpaqueAlpha,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          p=PushCharPixel(p,&pixel);
-                          SetPixelAlpha(image,ScaleAnyToQuantum(pixel,max_value),q);
-                        }
-                      q+=GetPixelChannels(image);
+                      unsigned char
+                        pixel;
+
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        p=PushCharPixel(p,&pixel);
+                        SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q);
+                        p=PushCharPixel(p,&pixel);
+                        SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        p=PushCharPixel(p,&pixel);
+                        SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        SetPixelAlpha(image,OpaqueAlpha,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            p=PushCharPixel(p,&pixel);
+                            SetPixelAlpha(image,ScaleAnyToQuantum(pixel,
+                              max_value),q);
+                          }
+                        q+=GetPixelChannels(image);
+                      }
+                      break;
                     }
-                  }
-                else
-                  {
-                    unsigned short
-                      pixel;
-
-                    for (x=0; x < (ssize_t) image->columns; x++)
+                  if (image->depth <= 16)
                     {
-                      p=PushShortPixel(MSBEndian,p,&pixel);
-                      SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      p=PushShortPixel(MSBEndian,p,&pixel);
-                      SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      p=PushShortPixel(MSBEndian,p,&pixel);
-                      SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),q);
-                      SetPixelAlpha(image,OpaqueAlpha,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          p=PushShortPixel(MSBEndian,p,&pixel);
-                          SetPixelAlpha(image,ScaleAnyToQuantum(pixel,max_value),q);
-                        }
-                      q+=GetPixelChannels(image);
+                      unsigned short
+                        pixel;
+
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        p=PushShortPixel(MSBEndian,p,&pixel);
+                        SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q);
+                        p=PushShortPixel(MSBEndian,p,&pixel);
+                        SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        p=PushShortPixel(MSBEndian,p,&pixel);
+                        SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                        SetPixelAlpha(image,OpaqueAlpha,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            p=PushShortPixel(MSBEndian,p,&pixel);
+                            SetPixelAlpha(image,ScaleAnyToQuantum(pixel,
+                              max_value),q);
+                          }
+                        q+=GetPixelChannels(image);
+                      }
+                      break;
                     }
+                  for (x=0; x < (ssize_t) image->columns; x++)
+                  {
+                    p=PushLongPixel(MSBEndian,p,&pixel);
+                    SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q);
+                    p=PushLongPixel(MSBEndian,p,&pixel);
+                    SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),q);
+                    p=PushLongPixel(MSBEndian,p,&pixel);
+                    SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),q);
+                    SetPixelAlpha(image,OpaqueAlpha,q);
+                    if (image->alpha_trait != UndefinedPixelTrait)
+                      {
+                        p=PushLongPixel(MSBEndian,p,&pixel);
+                        SetPixelAlpha(image,ScaleAnyToQuantum(pixel,max_value),
+                          q);
+                      }
+                    q+=GetPixelChannels(image);
                   }
-                break;
+                  break;
+                }
               }
             }
+          }
           sync=SyncAuthenticPixels(image,exception);
           if (sync == MagickFalse)
-            status=MagickFalse;
+            break;
         }
         quantum_info=DestroyQuantumInfo(quantum_info);
-        if (status == MagickFalse)
-          ThrowReaderException(CorruptImageError,"UnableToReadImageData");
         SetQuantumImageType(image,quantum_type);
         break;
       }
@@ -1165,11 +1264,14 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
         extent=GetQuantumExtent(image,quantum_info,quantum_type);
         for (y=0; y < (ssize_t) image->rows; y++)
         {
+          const unsigned char
+            *pixels;
+
           MagickBooleanType
             sync;
 
           register Quantum
-            *restrict q;
+            *magick_restrict q;
 
           ssize_t
             count,
@@ -1178,53 +1280,43 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
           size_t
             length;
 
-          unsigned char
-            *pixels;
-
-          if (status == MagickFalse)
-            continue;
-          pixels=GetQuantumPixels(quantum_info);
-          {
-            count=ReadBlob(image,extent,pixels);
-            if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
-                (image->previous == (Image *) NULL))
-              {
-                MagickBooleanType
-                  proceed;
+          pixels=(unsigned char *) ReadBlobStream(image,extent,
+            GetQuantumPixels(quantum_info),&count);
+          if (count != (ssize_t) extent)
+            break;
+          if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
+              (image->previous == (Image *) NULL))
+            {
+              MagickBooleanType
+                proceed;
 
-                proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType)
-                  row,image->rows);
-                if (proceed == MagickFalse)
-                  status=MagickFalse;
-              }
-            offset=row++;
-          }
-          if ((size_t) count != extent)
-            status=MagickFalse;
+              proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType)
+                row,image->rows);
+              if (proceed == MagickFalse)
+                break;
+            }
+          offset=row++;
           q=QueueAuthenticPixels(image,0,(ssize_t) (image->rows-offset-1),
             image->columns,1,exception);
           if (q == (Quantum *) NULL)
-            {
-              status=MagickFalse;
-              continue;
-            }
+            break;
           length=ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
             quantum_type,pixels,exception);
           if (length != extent)
-            status=MagickFalse;
+            break;
           sync=SyncAuthenticPixels(image,exception);
           if (sync == MagickFalse)
-            status=MagickFalse;
+            break;
         }
         quantum_info=DestroyQuantumInfo(quantum_info);
-        if (status == MagickFalse)
-          ThrowReaderException(CorruptImageError,"UnableToReadImageData");
         SetQuantumImageType(image,quantum_type);
         break;
       }
       default:
         ThrowReaderException(CorruptImageError,"ImproperImageHeader");
     }
+    if (y < (ssize_t) image->rows)
+      ThrowReaderException(CorruptImageError,"UnableToReadImageData");
     if (EOFBlob(image) != MagickFalse)
       {
         (void) ThrowMagickException(exception,GetMagickModule(),
@@ -1244,9 +1336,9 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
           Skip to end of line.
         */
         count=ReadBlob(image,1,(unsigned char *) &format);
-        if (count == 0)
+        if (count != 1)
           break;
-        if ((count != 0) && (format == 'P'))
+        if (format == 'P')
           break;
       } while (format != '\n');
     count=ReadBlob(image,1,(unsigned char *) &format);
@@ -1300,48 +1392,37 @@ ModuleExport size_t RegisterPNMImage(void)
   MagickInfo
     *entry;
 
-  entry=SetMagickInfo("PAM");
+  entry=AcquireMagickInfo("PNM","PAM","Common 2-dimensional bitmap format");
   entry->decoder=(DecodeImageHandler *) ReadPNMImage;
   entry->encoder=(EncodeImageHandler *) WritePNMImage;
-  entry->description=ConstantString("Common 2-dimensional bitmap format");
   entry->mime_type=ConstantString("image/x-portable-pixmap");
-  entry->module=ConstantString("PNM");
   (void) RegisterMagickInfo(entry);
-  entry=SetMagickInfo("PBM");
+  entry=AcquireMagickInfo("PNM","PBM",
+    "Portable bitmap format (black and white)");
   entry->decoder=(DecodeImageHandler *) ReadPNMImage;
   entry->encoder=(EncodeImageHandler *) WritePNMImage;
-  entry->description=ConstantString("Portable bitmap format (black and white)");
   entry->mime_type=ConstantString("image/x-portable-bitmap");
-  entry->module=ConstantString("PNM");
   (void) RegisterMagickInfo(entry);
-  entry=SetMagickInfo("PFM");
+  entry=AcquireMagickInfo("PNM","PFM","Portable float format");
   entry->decoder=(DecodeImageHandler *) ReadPNMImage;
   entry->encoder=(EncodeImageHandler *) WritePNMImage;
-  entry->endian_support=MagickTrue;
-  entry->description=ConstantString("Portable float format");
-  entry->module=ConstantString("PFM");
+  entry->flags|=CoderEndianSupportFlag;
   (void) RegisterMagickInfo(entry);
-  entry=SetMagickInfo("PGM");
+  entry=AcquireMagickInfo("PNM","PGM","Portable graymap format (gray scale)");
   entry->decoder=(DecodeImageHandler *) ReadPNMImage;
   entry->encoder=(EncodeImageHandler *) WritePNMImage;
-  entry->description=ConstantString("Portable graymap format (gray scale)");
   entry->mime_type=ConstantString("image/x-portable-greymap");
-  entry->module=ConstantString("PNM");
   (void) RegisterMagickInfo(entry);
-  entry=SetMagickInfo("PNM");
+  entry=AcquireMagickInfo("PNM","PNM","Portable anymap");
   entry->decoder=(DecodeImageHandler *) ReadPNMImage;
   entry->encoder=(EncodeImageHandler *) WritePNMImage;
   entry->magick=(IsImageFormatHandler *) IsPNM;
-  entry->description=ConstantString("Portable anymap");
   entry->mime_type=ConstantString("image/x-portable-pixmap");
-  entry->module=ConstantString("PNM");
   (void) RegisterMagickInfo(entry);
-  entry=SetMagickInfo("PPM");
+  entry=AcquireMagickInfo("PNM","PPM","Portable pixmap format (color)");
   entry->decoder=(DecodeImageHandler *) ReadPNMImage;
   entry->encoder=(EncodeImageHandler *) WritePNMImage;
-  entry->description=ConstantString("Portable pixmap format (color)");
   entry->mime_type=ConstantString("image/x-portable-pixmap");
-  entry->module=ConstantString("PNM");
   (void) RegisterMagickInfo(entry);
   return(MagickImageCoderSignature);
 }
@@ -1405,9 +1486,9 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
   ExceptionInfo *exception)
 {
   char
-    buffer[MaxTextExtent],
+    buffer[MagickPathExtent],
     format,
-    magick[MaxTextExtent];
+    magick[MagickPathExtent];
 
   const char
     *value;
@@ -1446,13 +1527,13 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
     Open output image file.
   */
   assert(image_info != (const ImageInfo *) NULL);
-  assert(image_info->signature == MagickSignature);
+  assert(image_info->signature == MagickCoreSignature);
   assert(image != (Image *) NULL);
-  assert(image->signature == MagickSignature);
+  assert(image->signature == MagickCoreSignature);
   if (image->debug != MagickFalse)
     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
   assert(exception != (ExceptionInfo *) NULL);
-  assert(exception->signature == MagickSignature);
+  assert(exception->signature == MagickCoreSignature);
   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
   if (status == MagickFalse)
     return(status);
@@ -1467,7 +1548,7 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
     */
     packet_size=3;
     quantum_type=RGBQuantum;
-    (void) CopyMagickString(magick,image_info->magick,MaxTextExtent);
+    (void) CopyMagickString(magick,image_info->magick,MagickPathExtent);
     max_value=GetQuantumRange(image->depth);
     switch (magick[1])
     {
@@ -1489,7 +1570,7 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
       case 'f':
       {
         format='F';
-        if (IsImageGray(image,exception) != MagickFalse)
+        if (SetImageGray(image,exception) != MagickFalse)
           format='f';
         break;
       }
@@ -1505,12 +1586,12 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
       case 'n':
       {
         if ((image_info->type != TrueColorType) &&
-            (IsImageGray(image,exception) != MagickFalse))
+            (SetImageGray(image,exception) != MagickFalse))
           {
             format='5';
             if (image_info->compression == NoCompression)
               format='2';
-            if (IsImageMonochrome(image,exception) != MagickFalse)
+            if (SetImageMonochrome(image,exception) != MagickFalse)
               {
                 format='4';
                 if (image_info->compression == NoCompression)
@@ -1527,7 +1608,7 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
         break;
       }
     }
-    (void) FormatLocaleString(buffer,MaxTextExtent,"P%c\n",format);
+    (void) FormatLocaleString(buffer,MagickPathExtent,"P%c\n",format);
     (void) WriteBlobString(image,buffer);
     value=GetImageProperty(image,"comment",exception);
     if (value != (const char *) NULL)
@@ -1549,19 +1630,19 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
       }
     if (format != '7')
       {
-        (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n",
+        (void) FormatLocaleString(buffer,MagickPathExtent,"%.20g %.20g\n",
           (double) image->columns,(double) image->rows);
         (void) WriteBlobString(image,buffer);
       }
     else
       {
         char
-          type[MaxTextExtent];
+          type[MagickPathExtent];
 
         /*
           PAM header.
         */
-        (void) FormatLocaleString(buffer,MaxTextExtent,
+        (void) FormatLocaleString(buffer,MagickPathExtent,
           "WIDTH %.20g\nHEIGHT %.20g\n",(double) image->columns,(double)
           image->rows);
         (void) WriteBlobString(image,buffer);
@@ -1572,39 +1653,41 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
           case CMYKAQuantum:
           {
             packet_size=4;
-            (void) CopyMagickString(type,"CMYK",MaxTextExtent);
+            (void) CopyMagickString(type,"CMYK",MagickPathExtent);
             break;
           }
           case GrayQuantum:
           case GrayAlphaQuantum:
           {
             packet_size=1;
-            (void) CopyMagickString(type,"GRAYSCALE",MaxTextExtent);
+            (void) CopyMagickString(type,"GRAYSCALE",MagickPathExtent);
+            if (IsImageMonochrome(image) != MagickFalse)
+              (void) CopyMagickString(type,"BLACKANDWHITE",MagickPathExtent);
             break;
           }
           default:
           {
             quantum_type=RGBQuantum;
-            if (image->alpha_trait == BlendPixelTrait)
+            if (image->alpha_trait != UndefinedPixelTrait)
               quantum_type=RGBAQuantum;
             packet_size=3;
-            (void) CopyMagickString(type,"RGB",MaxTextExtent);
+            (void) CopyMagickString(type,"RGB",MagickPathExtent);
             break;
           }
         }
-        if (image->alpha_trait == BlendPixelTrait)
+        if (image->alpha_trait != UndefinedPixelTrait)
           {
             packet_size++;
-            (void) ConcatenateMagickString(type,"_ALPHA",MaxTextExtent);
+            (void) ConcatenateMagickString(type,"_ALPHA",MagickPathExtent);
           }
-        if (image->depth > 16)
-          image->depth=16;
-        (void) FormatLocaleString(buffer,MaxTextExtent,
+        if (image->depth > 32)
+          image->depth=32;
+        (void) FormatLocaleString(buffer,MagickPathExtent,
           "DEPTH %.20g\nMAXVAL %.20g\n",(double) packet_size,(double)
           ((MagickOffsetType) GetQuantumRange(image->depth)));
         (void) WriteBlobString(image,buffer);
-        (void) FormatLocaleString(buffer,MaxTextExtent,"TUPLTYPE %s\nENDHDR\n",
-          type);
+        (void) FormatLocaleString(buffer,MagickPathExtent,
+          "TUPLTYPE %s\nENDHDR\n",type);
         (void) WriteBlobString(image,buffer);
       }
     /*
@@ -1620,11 +1703,12 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
         /*
           Convert image to a PBM image.
         */
+        (void) SetImageType(image,BilevelType,exception);
         q=pixels;
         for (y=0; y < (ssize_t) image->rows; y++)
         {
           register const Quantum
-            *restrict p;
+            *magick_restrict p;
 
           register ssize_t
             x;
@@ -1634,11 +1718,10 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
             break;
           for (x=0; x < (ssize_t) image->columns; x++)
           {
-            pixel=ClampToQuantum(GetPixelLuma(image,p));
-            *q++=(unsigned char) (pixel >= (Quantum) (QuantumRange/2) ?
+            *q++=(unsigned char) (GetPixelLuma(image,p) >= (QuantumRange/2.0) ?
               '0' : '1');
             *q++=' ';
-            if ((q-pixels+2) >= 80)
+            if ((q-pixels+1) >= (ssize_t) sizeof(pixels))
               {
                 *q++='\n';
                 (void) WriteBlob(image,q-pixels,pixels);
@@ -1646,6 +1729,9 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
               }
             p+=GetPixelChannels(image);
           }
+          *q++='\n';
+          (void) WriteBlob(image,q-pixels,pixels);
+          q=pixels;
           if (image->previous == (Image *) NULL)
             {
               status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
@@ -1672,12 +1758,15 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
         if (image->depth <= 8)
           (void) WriteBlobString(image,"255\n");
         else
-          (void) WriteBlobString(image,"65535\n");
+          if (image->depth <= 16)
+            (void) WriteBlobString(image,"65535\n");
+          else
+            (void) WriteBlobString(image,"4294967295\n");
         q=pixels;
         for (y=0; y < (ssize_t) image->rows; y++)
         {
           register const Quantum
-            *restrict p;
+            *magick_restrict p;
 
           register ssize_t
             x;
@@ -1689,15 +1778,19 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
           {
             index=ClampToQuantum(GetPixelLuma(image,p));
             if (image->depth <= 8)
-              count=(ssize_t) FormatLocaleString(buffer,MaxTextExtent,"%u ",
+              count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent,"%u ",
                 ScaleQuantumToChar(index));
             else
-              count=(ssize_t) FormatLocaleString(buffer,MaxTextExtent,"%u ",
-                ScaleQuantumToShort(index));
+              if (image->depth <= 16)
+                count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent,
+                  "%u ",ScaleQuantumToShort(index));
+              else
+                count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent,
+                  "%u ",ScaleQuantumToLong(index));
             extent=(size_t) count;
             (void) strncpy((char *) q,buffer,extent);
             q+=extent;
-            if ((q-pixels+extent) >= 80)
+            if ((q-pixels+extent+1) >= sizeof(pixels))
               {
                 *q++='\n';
                 (void) WriteBlob(image,q-pixels,pixels);
@@ -1705,6 +1798,9 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
               }
             p+=GetPixelChannels(image);
           }
+          *q++='\n';
+          (void) WriteBlob(image,q-pixels,pixels);
+          q=pixels;
           if (image->previous == (Image *) NULL)
             {
               status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
@@ -1728,17 +1824,19 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
         /*
           Convert image to a PNM image.
         */
-        if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)
-          (void) TransformImageColorspace(image,sRGBColorspace,exception);
+        (void) TransformImageColorspace(image,sRGBColorspace,exception);
         if (image->depth <= 8)
           (void) WriteBlobString(image,"255\n");
         else
-          (void) WriteBlobString(image,"65535\n");
+          if (image->depth <= 16)
+            (void) WriteBlobString(image,"65535\n");
+          else
+            (void) WriteBlobString(image,"4294967295\n");
         q=pixels;
         for (y=0; y < (ssize_t) image->rows; y++)
         {
           register const Quantum
-            *restrict p;
+            *magick_restrict p;
 
           register ssize_t
             x;
@@ -1749,19 +1847,25 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
           for (x=0; x < (ssize_t) image->columns; x++)
           {
             if (image->depth <= 8)
-              count=(ssize_t) FormatLocaleString(buffer,MaxTextExtent,
+              count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent,
                 "%u %u %u ",ScaleQuantumToChar(GetPixelRed(image,p)),
                 ScaleQuantumToChar(GetPixelGreen(image,p)),
                 ScaleQuantumToChar(GetPixelBlue(image,p)));
             else
-              count=(ssize_t) FormatLocaleString(buffer,MaxTextExtent,
-                "%u %u %u ",ScaleQuantumToShort(GetPixelRed(image,p)),
-                ScaleQuantumToShort(GetPixelGreen(image,p)),
-                ScaleQuantumToShort(GetPixelBlue(image,p)));
+              if (image->depth <= 16)
+                count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent,
+                  "%u %u %u ",ScaleQuantumToShort(GetPixelRed(image,p)),
+                  ScaleQuantumToShort(GetPixelGreen(image,p)),
+                  ScaleQuantumToShort(GetPixelBlue(image,p)));
+              else
+                count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent,
+                  "%u %u %u ",ScaleQuantumToLong(GetPixelRed(image,p)),
+                  ScaleQuantumToLong(GetPixelGreen(image,p)),
+                  ScaleQuantumToLong(GetPixelBlue(image,p)));
             extent=(size_t) count;
             (void) strncpy((char *) q,buffer,extent);
             q+=extent;
-            if ((q-pixels+extent) >= 80)
+            if ((q-pixels+extent+1) >= sizeof(pixels))
               {
                 *q++='\n';
                 (void) WriteBlob(image,q-pixels,pixels);
@@ -1769,6 +1873,9 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
               }
             p+=GetPixelChannels(image);
           }
+          *q++='\n';
+          (void) WriteBlob(image,q-pixels,pixels);
+          q=pixels;
           if (image->previous == (Image *) NULL)
             {
               status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
@@ -1789,16 +1896,18 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
         /*
           Convert image to a PBM image.
         */
+        (void) SetImageType(image,BilevelType,exception);
         image->depth=1;
-        quantum_info=AcquireQuantumInfo((const ImageInfo *) NULL,image);
+        quantum_info=AcquireQuantumInfo(image_info,image);
         if (quantum_info == (QuantumInfo *) NULL)
           ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
+        (void) SetQuantumEndian(image,quantum_info,MSBEndian);
         quantum_info->min_is_white=MagickTrue;
         pixels=GetQuantumPixels(quantum_info);
         for (y=0; y < (ssize_t) image->rows; y++)
         {
           register const Quantum
-            *restrict p;
+            *magick_restrict p;
 
           p=GetVirtualPixels(image,0,y,image->columns,1,exception);
           if (p == (const Quantum *) NULL)
@@ -1824,21 +1933,22 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
         /*
           Convert image to a PGM image.
         */
-        if (image->depth > 8)
-          image->depth=16;
-        (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g\n",(double)
+        if (image->depth > 32)
+          image->depth=32;
+        (void) FormatLocaleString(buffer,MagickPathExtent,"%.20g\n",(double)
           ((MagickOffsetType) GetQuantumRange(image->depth)));
         (void) WriteBlobString(image,buffer);
-        quantum_info=AcquireQuantumInfo((const ImageInfo *) NULL,image);
+        quantum_info=AcquireQuantumInfo(image_info,image);
         if (quantum_info == (QuantumInfo *) NULL)
           ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
+        (void) SetQuantumEndian(image,quantum_info,MSBEndian);
         quantum_info->min_is_white=MagickTrue;
         pixels=GetQuantumPixels(quantum_info);
         extent=GetQuantumExtent(image,quantum_info,GrayQuantum);
         for (y=0; y < (ssize_t) image->rows; y++)
         {
           register const Quantum
-            *restrict p;
+            *magick_restrict p;
 
           register ssize_t
             x;
@@ -1847,45 +1957,79 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
           if (p == (const Quantum *) NULL)
             break;
           q=pixels;
-          if ((image->depth == 8) || (image->depth == 16))
-            extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
-              GrayQuantum,pixels,exception);
-          else
+          switch (image->depth)
+          {
+            case 8:
+            case 16:
+            case 32:
+            {
+              extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
+                GrayQuantum,pixels,exception);
+              break;
+            }
+            default:
             {
               if (image->depth <= 8)
-                for (x=0; x < (ssize_t) image->columns; x++)
                 {
-                  if (IsPixelGray(image,p) == MagickFalse)
-                    pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(
-                      image,p)),max_value);
-                  else
-                    {
-                      if (image->depth == 8)
-                        pixel=ScaleQuantumToChar(GetPixelRed(image,p));
-                      else
-                        pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
-                    }
-                  q=PopCharPixel((unsigned char) pixel,q);
-                  p+=GetPixelChannels(image);
+                  for (x=0; x < (ssize_t) image->columns; x++)
+                  {
+                    if (IsPixelGray(image,p) == MagickFalse)
+                      pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(
+                        image,p)),max_value);
+                    else
+                      {
+                        if (image->depth == 8)
+                          pixel=ScaleQuantumToChar(GetPixelRed(image,p));
+                        else
+                          pixel=ScaleQuantumToAny(GetPixelRed(image,p),
+                            max_value);
+                      }
+                    q=PopCharPixel((unsigned char) pixel,q);
+                    p+=GetPixelChannels(image);
+                  }
+                  extent=(size_t) (q-pixels);
+                  break;
                 }
-              else
-                for (x=0; x < (ssize_t) image->columns; x++)
+              if (image->depth <= 16)
                 {
-                  if (IsPixelGray(image,p) == MagickFalse)
-                    pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(
-                      image,p)),max_value);
-                  else
-                    {
-                      if (image->depth == 16)
-                        pixel=ScaleQuantumToShort(GetPixelRed(image,p));
-                      else
-                        pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
-                    }
-                  q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                  p+=GetPixelChannels(image);
+                  for (x=0; x < (ssize_t) image->columns; x++)
+                  {
+                    if (IsPixelGray(image,p) == MagickFalse)
+                      pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(image,
+                        p)),max_value);
+                    else
+                      {
+                        if (image->depth == 16)
+                          pixel=ScaleQuantumToShort(GetPixelRed(image,p));
+                        else
+                          pixel=ScaleQuantumToAny(GetPixelRed(image,p),
+                            max_value);
+                      }
+                    q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                    p+=GetPixelChannels(image);
+                  }
+                  extent=(size_t) (q-pixels);
+                  break;
                 }
+              for (x=0; x < (ssize_t) image->columns; x++)
+              {
+                if (IsPixelGray(image,p) == MagickFalse)
+                  pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(image,p)),
+                    max_value);
+                else
+                  {
+                    if (image->depth == 16)
+                      pixel=ScaleQuantumToLong(GetPixelRed(image,p));
+                    else
+                      pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
+                  }
+                q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                p+=GetPixelChannels(image);
+              }
               extent=(size_t) (q-pixels);
+              break;
             }
+          }
           count=WriteBlob(image,extent,pixels);
           if (count != (ssize_t) extent)
             break;
@@ -1905,14 +2049,13 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
         /*
           Convert image to a PNM image.
         */
-        if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)
-          (void) TransformImageColorspace(image,sRGBColorspace,exception);
-        if (image->depth > 8)
-          image->depth=16;
-        (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g\n",(double)
+        (void) TransformImageColorspace(image,sRGBColorspace,exception);
+        if (image->depth > 32)
+          image->depth=32;
+        (void) FormatLocaleString(buffer,MagickPathExtent,"%.20g\n",(double)
           ((MagickOffsetType) GetQuantumRange(image->depth)));
         (void) WriteBlobString(image,buffer);
-        quantum_info=AcquireQuantumInfo((const ImageInfo *) NULL,image);
+        quantum_info=AcquireQuantumInfo(image_info,image);
         if (quantum_info == (QuantumInfo *) NULL)
           ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
         (void) SetQuantumEndian(image,quantum_info,MSBEndian);
@@ -1921,7 +2064,7 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
         for (y=0; y < (ssize_t) image->rows; y++)
         {
           register const Quantum
-            *restrict p;
+            *magick_restrict p;
 
           register ssize_t
             x;
@@ -1930,35 +2073,62 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
           if (p == (const Quantum *) NULL)
             break;
           q=pixels;
-          if ((image->depth == 8) || (image->depth == 16))
-            extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
-              quantum_type,pixels,exception);
-          else
+          switch (image->depth)
+          {
+            case 8:
+            case 16:
+            case 32:
+            {
+              extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
+                quantum_type,pixels,exception);
+              break;
+            }
+            default:
             {
               if (image->depth <= 8)
-                for (x=0; x < (ssize_t) image->columns; x++)
                 {
-                  pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
-                  q=PopCharPixel((unsigned char) pixel,q);
-                  pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value);
-                  q=PopCharPixel((unsigned char) pixel,q);
-                  pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value);
-                  q=PopCharPixel((unsigned char) pixel,q);
-                  p+=GetPixelChannels(image);
+                  for (x=0; x < (ssize_t) image->columns; x++)
+                  {
+                    pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
+                    q=PopCharPixel((unsigned char) pixel,q);
+                    pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value);
+                    q=PopCharPixel((unsigned char) pixel,q);
+                    pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value);
+                    q=PopCharPixel((unsigned char) pixel,q);
+                    p+=GetPixelChannels(image);
+                  }
+                  extent=(size_t) (q-pixels);
+                  break;
                 }
-              else
-                for (x=0; x < (ssize_t) image->columns; x++)
+              if (image->depth <= 16)
                 {
-                  pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
-                  q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                  pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value);
-                  q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                  pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value);
-                  q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                  p+=GetPixelChannels(image);
+                  for (x=0; x < (ssize_t) image->columns; x++)
+                  {
+                    pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
+                    q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                    pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value);
+                    q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                    pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value);
+                    q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                    p+=GetPixelChannels(image);
+                  }
+                  extent=(size_t) (q-pixels);
+                  break;
                 }
+              for (x=0; x < (ssize_t) image->columns; x++)
+              {
+                pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
+                q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value);
+                q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value);
+                q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                p+=GetPixelChannels(image);
+              }
               extent=(size_t) (q-pixels);
+              break;
             }
+          }
           count=WriteBlob(image,extent,pixels);
           if (count != (ssize_t) extent)
             break;
@@ -1978,14 +2148,17 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
         /*
           Convert image to a PAM.
         */
-        if (image->depth > 16)
-          image->depth=16;
-        quantum_info=AcquireQuantumInfo((const ImageInfo *) NULL,image);
+        if (image->depth > 32)
+          image->depth=32;
+        quantum_info=AcquireQuantumInfo(image_info,image);
+        if (quantum_info == (QuantumInfo *) NULL)
+          ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
+        (void) SetQuantumEndian(image,quantum_info,MSBEndian);
         pixels=GetQuantumPixels(quantum_info);
         for (y=0; y < (ssize_t) image->rows; y++)
         {
           register const Quantum
-            *restrict p;
+            *magick_restrict p;
 
           register ssize_t
             x;
@@ -1994,10 +2167,17 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
           if (p == (const Quantum *) NULL)
             break;
           q=pixels;
-          if ((image->depth == 8) || (image->depth == 16))
-            extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
-              quantum_type,pixels,exception);
-          else
+          switch (image->depth)
+          {
+            case 8:
+            case 16:
+            case 32:
+            {
+              extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
+                quantum_type,pixels,exception);
+              break;
+            }
+            default:
             {
               switch (quantum_type)
               {
@@ -2005,119 +2185,196 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
                 case GrayAlphaQuantum:
                 {
                   if (image->depth <= 8)
-                    for (x=0; x < (ssize_t) image->columns; x++)
                     {
-                      pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(
-                        image,p)),max_value);
-                      q=PopCharPixel((unsigned char) pixel,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          pixel=(unsigned char) ScaleQuantumToAny(
-                            GetPixelAlpha(image,p),max_value);
-                          q=PopCharPixel((unsigned char) pixel,q);
-                        }
-                      p+=GetPixelChannels(image);
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(
+                          image,p)),max_value);
+                        q=PopCharPixel((unsigned char) pixel,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            pixel=(unsigned char) ScaleQuantumToAny(
+                              GetPixelAlpha(image,p),max_value);
+                            q=PopCharPixel((unsigned char) pixel,q);
+                          }
+                        p+=GetPixelChannels(image);
+                      }
+                      break;
                     }
-                  else
-                    for (x=0; x < (ssize_t) image->columns; x++)
+                  if (image->depth <= 16)
                     {
-                      pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(
-                        image,p)),max_value);
-                      q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          pixel=(unsigned char) ScaleQuantumToAny(
-                            GetPixelAlpha(image,p),max_value);
-                          q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                        }
-                      p+=GetPixelChannels(image);
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(
+                          image,p)),max_value);
+                        q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            pixel=(unsigned char) ScaleQuantumToAny(
+                              GetPixelAlpha(image,p),max_value);
+                            q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                          }
+                        p+=GetPixelChannels(image);
+                      }
+                      break;
                     }
+                  for (x=0; x < (ssize_t) image->columns; x++)
+                  {
+                    pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(image,
+                      p)),max_value);
+                    q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                    if (image->alpha_trait != UndefinedPixelTrait)
+                      {
+                        pixel=(unsigned char) ScaleQuantumToAny(
+                          GetPixelAlpha(image,p),max_value);
+                        q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                      }
+                    p+=GetPixelChannels(image);
+                  }
                   break;
                 }
                 case CMYKQuantum:
                 case CMYKAQuantum:
                 {
                   if (image->depth <= 8)
-                    for (x=0; x < (ssize_t) image->columns; x++)
                     {
-                      pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
-                      q=PopCharPixel((unsigned char) pixel,q);
-                      pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value);
-                      q=PopCharPixel((unsigned char) pixel,q);
-                      pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value);
-                      q=PopCharPixel((unsigned char) pixel,q);
-                      pixel=ScaleQuantumToAny(GetPixelBlack(image,p),max_value);
-                      q=PopCharPixel((unsigned char) pixel,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          pixel=ScaleQuantumToAny(GetPixelAlpha(image,p),
-                            max_value);
-                          q=PopCharPixel((unsigned char) pixel,q);
-                        }
-                      p+=GetPixelChannels(image);
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
+                        q=PopCharPixel((unsigned char) pixel,q);
+                        pixel=ScaleQuantumToAny(GetPixelGreen(image,p),
+                          max_value);
+                        q=PopCharPixel((unsigned char) pixel,q);
+                        pixel=ScaleQuantumToAny(GetPixelBlue(image,p),
+                          max_value);
+                        q=PopCharPixel((unsigned char) pixel,q);
+                        pixel=ScaleQuantumToAny(GetPixelBlack(image,p),
+                          max_value);
+                        q=PopCharPixel((unsigned char) pixel,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            pixel=ScaleQuantumToAny(GetPixelAlpha(image,p),
+                              max_value);
+                            q=PopCharPixel((unsigned char) pixel,q);
+                          }
+                        p+=GetPixelChannels(image);
+                      }
+                      break;
                     }
-                  else
-                    for (x=0; x < (ssize_t) image->columns; x++)
+                  if (image->depth <= 16)
                     {
-                      pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
-                      q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                      pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value);
-                      q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                      pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value);
-                      q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                      pixel=ScaleQuantumToAny(GetPixelBlack(image,p),max_value);
-                      q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          pixel=ScaleQuantumToAny(GetPixelAlpha(image,p),
-                            max_value);
-                          q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                        }
-                      p+=GetPixelChannels(image);
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
+                        q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                        pixel=ScaleQuantumToAny(GetPixelGreen(image,p),
+                          max_value);
+                        q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                        pixel=ScaleQuantumToAny(GetPixelBlue(image,p),
+                          max_value);
+                        q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                        pixel=ScaleQuantumToAny(GetPixelBlack(image,p),
+                          max_value);
+                        q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            pixel=ScaleQuantumToAny(GetPixelAlpha(image,p),
+                              max_value);
+                            q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                          }
+                        p+=GetPixelChannels(image);
+                      }
+                      break;
                     }
+                  for (x=0; x < (ssize_t) image->columns; x++)
+                  {
+                    pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
+                    q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                    pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value);
+                    q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                    pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value);
+                    q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                    pixel=ScaleQuantumToAny(GetPixelBlack(image,p),max_value);
+                    q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                    if (image->alpha_trait != UndefinedPixelTrait)
+                      {
+                        pixel=ScaleQuantumToAny(GetPixelAlpha(image,p),
+                          max_value);
+                        q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                      }
+                    p+=GetPixelChannels(image);
+                  }
                   break;
                 }
                 default:
                 {
                   if (image->depth <= 8)
-                    for (x=0; x < (ssize_t) image->columns; x++)
                     {
-                      pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
-                      q=PopCharPixel((unsigned char) pixel,q);
-                      pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value);
-                      q=PopCharPixel((unsigned char) pixel,q);
-                      pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value);
-                      q=PopCharPixel((unsigned char) pixel,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          pixel=ScaleQuantumToAny(GetPixelAlpha(image,p),
-                            max_value);
-                          q=PopCharPixel((unsigned char) pixel,q);
-                        }
-                      p+=GetPixelChannels(image);
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
+                        q=PopCharPixel((unsigned char) pixel,q);
+                        pixel=ScaleQuantumToAny(GetPixelGreen(image,p),
+                          max_value);
+                        q=PopCharPixel((unsigned char) pixel,q);
+                        pixel=ScaleQuantumToAny(GetPixelBlue(image,p),
+                          max_value);
+                        q=PopCharPixel((unsigned char) pixel,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            pixel=ScaleQuantumToAny(GetPixelAlpha(image,p),
+                              max_value);
+                            q=PopCharPixel((unsigned char) pixel,q);
+                          }
+                        p+=GetPixelChannels(image);
+                      }
+                      break;
                     }
-                  else
-                    for (x=0; x < (ssize_t) image->columns; x++)
+                  if (image->depth <= 16)
                     {
-                      pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
-                      q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                      pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value);
-                      q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                      pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value);
-                      q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                      if (image->alpha_trait == BlendPixelTrait)
-                        {
-                          pixel=ScaleQuantumToAny(GetPixelAlpha(image,p),
-                            max_value);
-                          q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
-                        }
-                      p+=GetPixelChannels(image);
+                      for (x=0; x < (ssize_t) image->columns; x++)
+                      {
+                        pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
+                        q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                        pixel=ScaleQuantumToAny(GetPixelGreen(image,p),
+                          max_value);
+                        q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                        pixel=ScaleQuantumToAny(GetPixelBlue(image,p),
+                          max_value);
+                        q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                        if (image->alpha_trait != UndefinedPixelTrait)
+                          {
+                            pixel=ScaleQuantumToAny(GetPixelAlpha(image,p),
+                              max_value);
+                            q=PopShortPixel(MSBEndian,(unsigned short) pixel,q);
+                          }
+                        p+=GetPixelChannels(image);
+                      }
+                      break;
                     }
+                  for (x=0; x < (ssize_t) image->columns; x++)
+                  {
+                    pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value);
+                    q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                    pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value);
+                    q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                    pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value);
+                    q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                    if (image->alpha_trait != UndefinedPixelTrait)
+                      {
+                        pixel=ScaleQuantumToAny(GetPixelAlpha(image,p),
+                          max_value);
+                        q=PopLongPixel(MSBEndian,(unsigned int) pixel,q);
+                      }
+                    p+=GetPixelChannels(image);
+                  }
                   break;
                 }
               }
               extent=(size_t) (q-pixels);
+              break;
             }
+          }
           count=WriteBlob(image,extent,pixels);
           if (count != (ssize_t) extent)
             break;
@@ -2139,7 +2396,7 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
           "1.0\n");
         image->depth=32;
         quantum_type=format == 'f' ? GrayQuantum : RGBQuantum;
-        quantum_info=AcquireQuantumInfo((const ImageInfo *) NULL,image);
+        quantum_info=AcquireQuantumInfo(image_info,image);
         if (quantum_info == (QuantumInfo *) NULL)
           ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
         status=SetQuantumFormat(image,quantum_info,FloatingPointQuantumFormat);
@@ -2149,7 +2406,7 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image,
         for (y=(ssize_t) image->rows-1; y >= 0; y--)
         {
           register const Quantum
-            *restrict p;
+            *magick_restrict p;
 
           p=GetVirtualPixels(image,0,y,image->columns,1,exception);
           if (p == (const Quantum *) NULL)