% M M A A P %
% %
% %
-% Read/Write Image Colormaps As An Image File. %
+% Read/Write Image Colormaps as an Image File. %
% %
% Software Design %
-% John Cristy %
+% Cristy %
% July 1992 %
% %
% %
-% Copyright 1999-2009 ImageMagick Studio LLC, a non-profit organization %
+% Copyright 1999-2017 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, %
/*
Include declarations.
*/
-#include "magick/studio.h"
-#include "magick/attribute.h"
-#include "magick/blob.h"
-#include "magick/blob-private.h"
-#include "magick/cache.h"
-#include "magick/color.h"
-#include "magick/colormap-private.h"
-#include "magick/color-private.h"
-#include "magick/colorspace.h"
-#include "magick/exception.h"
-#include "magick/exception-private.h"
-#include "magick/histogram.h"
-#include "magick/image.h"
-#include "magick/image-private.h"
-#include "magick/list.h"
-#include "magick/magick.h"
-#include "magick/memory_.h"
-#include "magick/quantum-private.h"
-#include "magick/static.h"
-#include "magick/statistic.h"
-#include "magick/string_.h"
-#include "magick/module.h"
+#include "MagickCore/studio.h"
+#include "MagickCore/attribute.h"
+#include "MagickCore/blob.h"
+#include "MagickCore/blob-private.h"
+#include "MagickCore/cache.h"
+#include "MagickCore/color.h"
+#include "MagickCore/color-private.h"
+#include "MagickCore/colormap.h"
+#include "MagickCore/colormap-private.h"
+#include "MagickCore/colorspace.h"
+#include "MagickCore/colorspace-private.h"
+#include "MagickCore/exception.h"
+#include "MagickCore/exception-private.h"
+#include "MagickCore/histogram.h"
+#include "MagickCore/image.h"
+#include "MagickCore/image-private.h"
+#include "MagickCore/list.h"
+#include "MagickCore/magick.h"
+#include "MagickCore/memory_.h"
+#include "MagickCore/pixel-accessor.h"
+#include "MagickCore/quantum-private.h"
+#include "MagickCore/static.h"
+#include "MagickCore/statistic.h"
+#include "MagickCore/string_.h"
+#include "MagickCore/module.h"
\f
/*
Forward declarations.
*/
static MagickBooleanType
- WriteMAPImage(const ImageInfo *,Image *);
+ WriteMAPImage(const ImageInfo *,Image *,ExceptionInfo *);
\f
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Image
*image;
- IndexPacket
- index;
-
- long
- y;
-
MagickBooleanType
status;
- register IndexPacket
- *indexes;
+ Quantum
+ index;
- register long
+ register ssize_t
x;
- register PixelPacket
+ register Quantum
*q;
- register long
+ register ssize_t
i;
register unsigned char
*p;
size_t
- packet_size;
+ depth,
+ packet_size,
+ quantum;
ssize_t
- count;
+ count,
+ y;
unsigned char
*colormap,
*pixels;
- unsigned long
- depth,
- quantum;
-
/*
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);
- image=AcquireImage(image_info);
+ assert(exception->signature == MagickCoreSignature);
+ image=AcquireImage(image_info,exception);
if ((image->columns == 0) || (image->rows == 0))
ThrowReaderException(OptionError,"MustSpecifyImageSize");
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
Initialize image structure.
*/
image->storage_class=PseudoClass;
- status=AcquireImageColormap(image,(unsigned long)
- (image->offset != 0 ? image->offset : 256));
+ status=AcquireImageColormap(image,(size_t)
+ (image->offset != 0 ? image->offset : 256),exception);
if (status == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
depth=GetImageQuantumDepth(image,MagickTrue);
ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile");
p=colormap;
if (image->depth <= 8)
- for (i=0; i < (long) image->colors; i++)
+ for (i=0; i < (ssize_t) image->colors; i++)
{
image->colormap[i].red=ScaleCharToQuantum(*p++);
image->colormap[i].green=ScaleCharToQuantum(*p++);
image->colormap[i].blue=ScaleCharToQuantum(*p++);
}
else
- for (i=0; i < (long) image->colors; i++)
+ for (i=0; i < (ssize_t) image->colors; i++)
{
quantum=(*p++ << 8);
quantum|=(*p++);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
+ status=SetImageExtent(image,image->columns,image->rows,exception);
+ if (status == MagickFalse)
+ return(DestroyImageList(image));
/*
Read image pixels.
*/
packet_size=(size_t) (depth/8);
- for (y=0; y < (long) image->rows; y++)
+ for (y=0; y < (ssize_t) image->rows; y++)
{
p=pixels;
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
- if (q == (PixelPacket *) NULL)
+ if (q == (Quantum *) NULL)
break;
- indexes=GetAuthenticIndexQueue(image);
count=ReadBlob(image,(size_t) packet_size*image->columns,pixels);
if (count != (ssize_t) (packet_size*image->columns))
break;
- for (x=0; x < (long) image->columns; x++)
+ for (x=0; x < (ssize_t) image->columns; x++)
{
- index=ConstrainColormapIndex(image,*p);
+ index=ConstrainColormapIndex(image,*p,exception);
p++;
if (image->colors > 256)
{
- index=ConstrainColormapIndex(image,((unsigned long) index << 8)+(*p));
+ index=ConstrainColormapIndex(image,((size_t) index << 8)+(*p),
+ exception);
p++;
}
- indexes[x]=(IndexPacket) index;
- *q++=image->colormap[(long) index];
+ SetPixelIndex(image,index,q);
+ SetPixelViaPixelInfo(image,image->colormap+(ssize_t) index,q);
+ q+=GetPixelChannels(image);
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
- if (y < (long) image->rows)
+ if (y < (ssize_t) image->rows)
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
(void) CloseBlob(image);
%
% The format of the RegisterMAPImage method is:
%
-% unsigned long RegisterMAPImage(void)
+% size_t RegisterMAPImage(void)
%
*/
-ModuleExport unsigned long RegisterMAPImage(void)
+ModuleExport size_t RegisterMAPImage(void)
{
MagickInfo
*entry;
- entry=SetMagickInfo("MAP");
+ entry=AcquireMagickInfo("MAP","MAP","Colormap intensities and indices");
entry->decoder=(DecodeImageHandler *) ReadMAPImage;
entry->encoder=(EncodeImageHandler *) WriteMAPImage;
- entry->adjoin=MagickFalse;
+ entry->flags^=CoderAdjoinFlag;
entry->format_type=ExplicitFormatType;
- entry->raw=MagickTrue;
- entry->endian_support=MagickTrue;
- entry->description=ConstantString("Colormap intensities and indices");
- entry->module=ConstantString("MAP");
+ entry->flags|=CoderRawSupportFlag;
+ entry->flags|=CoderEndianSupportFlag;
(void) RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}
%
% The format of the WriteMAPImage method is:
%
-% MagickBooleanType WriteMAPImage(const ImageInfo *image_info,Image *image)
+% MagickBooleanType WriteMAPImage(const ImageInfo *image_info,
+% Image *image,ExceptionInfo *exception)
%
% A description of each parameter follows.
%
%
% o image: The image.
%
+% o exception: return any errors or warnings in this structure.
%
*/
-static MagickBooleanType WriteMAPImage(const ImageInfo *image_info,Image *image)
+static MagickBooleanType WriteMAPImage(const ImageInfo *image_info,Image *image,
+ ExceptionInfo *exception)
{
- long
- y;
-
MagickBooleanType
status;
- register const IndexPacket
- *indexes;
-
- register const PixelPacket
+ register const Quantum
*p;
- register long
+ register ssize_t
i,
x;
*q;
size_t
+ depth,
packet_size;
+ ssize_t
+ y;
+
unsigned char
*colormap,
*pixels;
- unsigned long
- depth;
-
/*
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);
- status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
+ assert(exception != (ExceptionInfo *) NULL);
+ assert(exception->signature == MagickCoreSignature);
+ status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
if (status == MagickFalse)
return(status);
- if (image->colorspace != RGBColorspace)
- (void) TransformImageColorspace(image,RGBColorspace);
+ (void) TransformImageColorspace(image,sRGBColorspace,exception);
/*
Allocate colormap.
*/
- if (IsPaletteImage(image,&image->exception) == MagickFalse)
- (void) SetImageType(image,PaletteType);
+ if (SetImageType(image,PaletteType,exception) == MagickFalse)
+ ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
depth=GetImageQuantumDepth(image,MagickTrue);
packet_size=(size_t) (depth/8);
pixels=(unsigned char *) AcquireQuantumMemory(image->columns,packet_size*
sizeof(*colormap));
if ((pixels == (unsigned char *) NULL) ||
(colormap == (unsigned char *) NULL))
- ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
+ {
+ if (colormap != (unsigned char *) NULL)
+ colormap=(unsigned char *) RelinquishMagickMemory(colormap);
+ if (pixels != (unsigned char *) NULL)
+ pixels=(unsigned char *) RelinquishMagickMemory(pixels);
+ ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
+ }
/*
Write colormap to file.
*/
q=colormap;
- if (image->depth <= 8)
- for (i=0; i < (long) image->colors; i++)
+ if (image->colors <= 256)
+ for (i=0; i < (ssize_t) image->colors; i++)
{
- *q++=(unsigned char) image->colormap[i].red;
- *q++=(unsigned char) image->colormap[i].green;
- *q++=(unsigned char) image->colormap[i].blue;
+ *q++=(unsigned char) ScaleQuantumToChar(image->colormap[i].red);
+ *q++=(unsigned char) ScaleQuantumToChar(image->colormap[i].green);
+ *q++=(unsigned char) ScaleQuantumToChar(image->colormap[i].blue);
}
else
- for (i=0; i < (long) image->colors; i++)
+ for (i=0; i < (ssize_t) image->colors; i++)
{
- *q++=(unsigned char) ((unsigned long) image->colormap[i].red >> 8);
- *q++=(unsigned char) image->colormap[i].red;
- *q++=(unsigned char) ((unsigned long) image->colormap[i].green >> 8);
- *q++=(unsigned char) image->colormap[i].green;
- *q++=(unsigned char) ((unsigned long) image->colormap[i].blue >> 8);
- *q++=(unsigned char) image->colormap[i].blue;
+ *q++=(unsigned char) (ScaleQuantumToShort(image->colormap[i].red) >> 8);
+ *q++=(unsigned char) (ScaleQuantumToShort(image->colormap[i].red) & 0xff);
+ *q++=(unsigned char) (ScaleQuantumToShort(image->colormap[i].green) >> 8);
+ *q++=(unsigned char) (ScaleQuantumToShort(image->colormap[i].green) &
+ 0xff);
+ *q++=(unsigned char) (ScaleQuantumToShort(image->colormap[i].blue) >> 8);
+ *q++=(unsigned char) (ScaleQuantumToShort(image->colormap[i].blue) &
+ 0xff);
}
(void) WriteBlob(image,packet_size*image->colors,colormap);
colormap=(unsigned char *) RelinquishMagickMemory(colormap);
/*
Write image pixels to file.
*/
- for (y=0; y < (long) image->rows; y++)
+ for (y=0; y < (ssize_t) image->rows; y++)
{
- p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
- if (p == (const PixelPacket *) NULL)
+ p=GetVirtualPixels(image,0,y,image->columns,1,exception);
+ if (p == (const Quantum *) NULL)
break;
- indexes=GetVirtualIndexQueue(image);
q=pixels;
- for (x=0; x < (long) image->columns; x++)
+ for (x=0; x < (ssize_t) image->columns; x++)
{
if (image->colors > 256)
- *q++=(unsigned char) ((unsigned long) indexes[x] >> 8);
- *q++=(unsigned char) indexes[x];
+ *q++=(unsigned char) ((size_t) GetPixelIndex(image,p) >> 8);
+ *q++=(unsigned char) GetPixelIndex(image,p);
+ p+=GetPixelChannels(image);
}
(void) WriteBlob(image,(size_t) (q-pixels),pixels);
}
projects / imagemagick / blobdiff