/src/imagemagick/coders/farbfeld.c

Source
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%                                                                             %
%            FFFFF   AAA   RRRR   BBBB   FFFFF  EEEEE  L      DDDD            %
%            F      A   A  R   R  B   B  F      E      L      D   D           %
%            FFF    AAAAA  RRRR   BBBB   FFF    EEE    L      D   D           %
%            F      A   A  R R    B   B  F      E      L      D   D           %
%            F      A   A  R  R   BBBB   F      EEEEE  LLLLL  DDDD            %
%                                                                             %
%                                                                             %
%                       Support Farbfeld Image Format                         %
%                                                                             %
%                              Software Design                                %
%                                Dirk Lemstra                                 %
%                               November 2020                                 %
%                                                                             %
%                                                                             %
%  Copyright @ 1999 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                                            %
%                                                                             %
%    https://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,          %
%  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
%  See the License for the specific language governing permissions and        %
%  limitations under the License.                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/

/*
  Include declarations.
*/
#include "MagickCore/studio.h"
#include "MagickCore/attribute.h"
#include "MagickCore/blob.h"
#include "MagickCore/blob-private.h"
#include "MagickCore/cache.h"
#include "MagickCore/color-private.h"
#include "MagickCore/colormap.h"
#include "MagickCore/colorspace.h"
#include "MagickCore/colorspace-private.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/image.h"
#include "MagickCore/image-private.h"
#include "MagickCore/list.h"
#include "MagickCore/magick.h"
#include "MagickCore/memory_.h"
#include "MagickCore/monitor.h"
#include "MagickCore/monitor-private.h"
#include "MagickCore/quantum-private.h"
#include "MagickCore/static.h"
#include "MagickCore/string_.h"
#include "MagickCore/module.h"

/*
  Forward declarations.
*/
static MagickBooleanType
  WriteFARBFELDImage(const ImageInfo *,Image *,ExceptionInfo *);

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   I s F A R B F E L D                                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  IsFARBFELD() returns MagickTrue if the image format type, identified by the
%  magick string, is Farbeld.
%
%  The format of the IsFarbeld method is:
%
%      MagickBooleanType IsFARBFELD(const unsigned char *magick,
%        const size_t extent)
%
%  A description of each parameter follows:
%
%    o magick: compare image format pattern against these bytes.
%
%    o extent: Specifies the extent of the magick string.
%
*/
static MagickBooleanType IsFARBFELD(const unsigned char *magick,
  const size_t extent)
{
  if (extent < 8)
    return(MagickFalse);
  if (LocaleNCompare((char *) magick,"farbfeld",8) == 0)
    return(MagickTrue);
  return(MagickFalse);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   R e a d F A R B F E L D I m a g e                                         %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  ReadFARBFELDImage() reads an image of raw bits in LSB order and returns it.
%  It allocates the memory necessary for the new Image structure and returns
%  a pointer to the new image.
%
%  The format of the ReadFARBFELDImage method is:
%
%      Image *ReadFARBFELDImage(const ImageInfo *image_info,
%        ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o image_info: the image info.
%
%    o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadFARBFELDImage(const ImageInfo *image_info,
  ExceptionInfo *exception)
{
  Image
    *image;

  QuantumInfo
    *quantum_info;

  MagickBooleanType
    status;

  MagickSizeType
    magic;

  size_t
    extent;

  ssize_t
    count,
    y;

  unsigned char
    *pixels;

  /*
    Open image file.
  */
  assert(image_info != (const ImageInfo *) NULL);
  assert(image_info->signature == MagickCoreSignature);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickCoreSignature);
  if (IsEventLogging() != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
      image_info->filename);
  image=AcquireImage(image_info,exception);
  status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
  if (status == MagickFalse)
    {
      image=DestroyImageList(image);
      return((Image *) NULL);
    }
  image->depth=16;
  image->endian=MSBEndian;
  magic=ReadBlobLongLong(image);
  if (magic != MagickULLConstant(7377303431559867492))
    ThrowReaderException(CorruptImageError,"ImproperImageHeader");
  image->columns=(size_t) ReadBlobLong(image);
  image->rows=(size_t) ReadBlobLong(image);
  image->alpha_trait=BlendPixelTrait;
  if (image_info->ping != MagickFalse)
    {
      (void) CloseBlob(image);
      return(GetFirstImageInList(image));
    }
  status=SetImageExtent(image,image->columns,image->rows,exception);
  if (status == MagickFalse)
    return(DestroyImageList(image));
  quantum_info=AcquireQuantumInfo(image_info,image);
  if (quantum_info == (QuantumInfo *) NULL)
    ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
  status=SetQuantumFormat(image,quantum_info,UnsignedQuantumFormat);
  extent=GetQuantumExtent(image,quantum_info,RGBAQuantum);
  pixels=GetQuantumPixels(quantum_info);
  for (y=0; y < (ssize_t) image->rows; y++)
  {
    const void
      *stream;

    Quantum
      *magick_restrict q;

    q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
    if (q == (Quantum *) NULL)
      break;
    stream=ReadBlobStream(image,extent,pixels,&count);
    if (count != (ssize_t) extent)
      break;
    (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
      RGBAQuantum,(unsigned char *) stream,exception);
    if (SyncAuthenticPixels(image,exception) == MagickFalse)
      break;
    if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse)
      break;
  }
  SetQuantumImageType(image,RGBAQuantum);
  quantum_info=DestroyQuantumInfo(quantum_info);
  if (y < (ssize_t) image->rows)
    ThrowReaderException(CorruptImageError,"UnableToReadImageData");
  if (EOFBlob(image) != MagickFalse)
    ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
      image->filename);
  if (CloseBlob(image) == MagickFalse)
    status=MagickFalse;
  if (status == MagickFalse)
    return(DestroyImageList(image));
  return(GetFirstImageInList(image));
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   R e g i s t e r F A R B F E L D I m a g e                                 %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  RegisterFARBFELDImage() adds attributes for the FARBFELD image format to
%  the list of supported formats.  The attributes include the image format
%  tag, a method to read and/or write the format, whether the format
%  supports the saving of more than one frame to the same file or blob,
%  whether the format supports native in-memory I/O, and a brief
%  description of the format.
%
%  The format of the RegisterFARBFELDImage method is:
%
%      size_t RegisterFARBFELDImage(void)
%
*/
ModuleExport size_t RegisterFARBFELDImage(void)
{
  MagickInfo
    *entry;

  entry=AcquireMagickInfo("FARBFELD","FARBFELD","Farbfeld");
  entry->decoder=(DecodeImageHandler *) ReadFARBFELDImage;
  entry->encoder=(EncodeImageHandler *) WriteFARBFELDImage;
  entry->magick=(IsImageFormatHandler *) IsFARBFELD;
  entry->flags|=CoderRawSupportFlag;
  entry->flags^=CoderAdjoinFlag;
  (void) RegisterMagickInfo(entry);
  entry=AcquireMagickInfo("FARBFELD","FF","Farbfeld");
  entry->decoder=(DecodeImageHandler *) ReadFARBFELDImage;
  entry->encoder=(EncodeImageHandler *) WriteFARBFELDImage;
  entry->magick=(IsImageFormatHandler *) IsFARBFELD;
  entry->flags|=CoderRawSupportFlag;
  entry->flags^=CoderAdjoinFlag;
  (void) RegisterMagickInfo(entry);
  return(MagickImageCoderSignature);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   U n r e g i s t e r F A R B F E L D I m a g e                             %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  UnregisterFARBFELDImage() removes format registrations made by the
%  Farbfeld module from the list of supported formats.
%
%  The format of the UnregisterFARBFELDImage method is:
%
%      UnregisterFARBFELDImage(void)
%
*/
ModuleExport void UnregisterFARBFELDImage(void)
{
  (void) UnregisterMagickInfo("FARBFELD");
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   W r i t e F A R B F E L D I m a g e                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  WriteFARBFELDImage() writes an image of raw bits in MSB order to a file.
%
%  The format of the WriteFARBFELDImage method is:
%
%      MagickBooleanType WriteFARBFELDImage(const ImageInfo *image_info,
%        Image *image,ExceptionInfo *exception)
%
%  A description of each parameter follows.
%
%    o image_info: the image info.
%
%    o image:  The image.
%
%    o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType WriteFARBFELDImage(const ImageInfo *image_info,
  Image *image,ExceptionInfo *exception)
{
  MagickBooleanType
    status;

  QuantumInfo
    *quantum_info;

  const Quantum
    *p;

  size_t
    extent;

  ssize_t
    count,
    y;

  unsigned char
    *pixels;

  /*
    Open output image file.
  */
  assert(image_info != (const ImageInfo *) NULL);
  assert(image_info->signature == MagickCoreSignature);
  assert(image != (Image *) NULL);
  assert(image->signature == MagickCoreSignature);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickCoreSignature);
  if (IsEventLogging() != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
  if (status == MagickFalse)
    return(status);
  image->endian=MSBEndian;
  (void) WriteBlobLongLong(image,MagickULLConstant(7377303431559867492));
  (void) WriteBlobLong(image,(unsigned int) image->columns);
  (void) WriteBlobLong(image,(unsigned int) image->rows);
  image->depth=16;
  quantum_info=AcquireQuantumInfo(image_info,image);
  if (quantum_info == (QuantumInfo *) NULL)
    ThrowWriterException(ImageError,"MemoryAllocationFailed");
  status=SetQuantumFormat(image,quantum_info,UnsignedQuantumFormat);
  pixels=(unsigned char *) GetQuantumPixels(quantum_info);
  for (y=0; y < (ssize_t) image->rows; y++)
  {
    p=GetVirtualPixels(image,0,y,image->columns,1,exception);
    if (p == (const Quantum *) NULL)
      break;
    extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
      RGBAQuantum,pixels,exception);
    count=WriteBlob(image,extent,pixels);
    if (count != (ssize_t) extent)
      break;
    status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
      image->rows);
    if (status == MagickFalse)
      break;
  }
  quantum_info=DestroyQuantumInfo(quantum_info);
  if (y < (ssize_t) image->rows)
    ThrowWriterException(CorruptImageError,"UnableToWriteImageData");
  if (CloseBlob(image) == MagickFalse)
    status=MagickFalse;
  return(status);
}

Coverage Report

Created: 2025-10-12 07:48

Line	Count	Source
1		/*
2		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3		% %
4		% %
5		% %
6		% %
7		% FFFFF AAA RRRR BBBB FFFFF EEEEE L DDDD %
8		% F A A R R B B F E L D D %
9		% FFF AAAAA RRRR BBBB FFF EEE L D D %
10		% F A A R R B B F E L D D %
11		% F A A R R BBBB F EEEEE LLLLL DDDD %
12		% %
13		% %
14		% Support Farbfeld Image Format %
15		% %
16		% Software Design %
17		% Dirk Lemstra %
18		% November 2020 %
19		% %
20		% %
21		% Copyright @ 1999 ImageMagick Studio LLC, a non-profit organization %
22		% dedicated to making software imaging solutions freely available. %
23		% %
24		% You may not use this file except in compliance with the License. You may %
25		% obtain a copy of the License at %
26		% %
27		% https://imagemagick.org/script/license.php %
28		% %
29		% Unless required by applicable law or agreed to in writing, software %
30		% distributed under the License is distributed on an "AS IS" BASIS, %
31		% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
32		% See the License for the specific language governing permissions and %
33		% limitations under the License. %
34		% %
35		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
36		%
37		%
38		*/
39
40		/*
41		Include declarations.
42		*/
43		#include "MagickCore/studio.h"
44		#include "MagickCore/attribute.h"
45		#include "MagickCore/blob.h"
46		#include "MagickCore/blob-private.h"
47		#include "MagickCore/cache.h"
48		#include "MagickCore/color-private.h"
49		#include "MagickCore/colormap.h"
50		#include "MagickCore/colorspace.h"
51		#include "MagickCore/colorspace-private.h"
52		#include "MagickCore/exception.h"
53		#include "MagickCore/exception-private.h"
54		#include "MagickCore/image.h"
55		#include "MagickCore/image-private.h"
56		#include "MagickCore/list.h"
57		#include "MagickCore/magick.h"
58		#include "MagickCore/memory_.h"
59		#include "MagickCore/monitor.h"
60		#include "MagickCore/monitor-private.h"
61		#include "MagickCore/quantum-private.h"
62		#include "MagickCore/static.h"
63		#include "MagickCore/string_.h"
64		#include "MagickCore/module.h"
65
66		/*
67		Forward declarations.
68		*/
69		static MagickBooleanType
70		WriteFARBFELDImage(const ImageInfo ,Image ,ExceptionInfo *);
71
72		/*
73		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
74		% %
75		% %
76		% %
77		% I s F A R B F E L D %
78		% %
79		% %
80		% %
81		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
82		%
83		% IsFARBFELD() returns MagickTrue if the image format type, identified by the
84		% magick string, is Farbeld.
85		%
86		% The format of the IsFarbeld method is:
87		%
88		% MagickBooleanType IsFARBFELD(const unsigned char *magick,
89		% const size_t extent)
90		%
91		% A description of each parameter follows:
92		%
93		% o magick: compare image format pattern against these bytes.
94		%
95		% o extent: Specifies the extent of the magick string.
96		%
97		*/
98		static MagickBooleanType IsFARBFELD(const unsigned char *magick,
99		const size_t extent)
100	0	{
101	0	if (extent < 8)
102	0	return(MagickFalse);
103	0	if (LocaleNCompare((char *) magick,"farbfeld",8) == 0)
104	0	return(MagickTrue);
105	0	return(MagickFalse);
106	0	}
107
108		/*
109		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
110		% %
111		% %
112		% %
113		% R e a d F A R B F E L D I m a g e %
114		% %
115		% %
116		% %
117		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
118		%
119		% ReadFARBFELDImage() reads an image of raw bits in LSB order and returns it.
120		% It allocates the memory necessary for the new Image structure and returns
121		% a pointer to the new image.
122		%
123		% The format of the ReadFARBFELDImage method is:
124		%
125		% Image ReadFARBFELDImage(const ImageInfo image_info,
126		% ExceptionInfo *exception)
127		%
128		% A description of each parameter follows:
129		%
130		% o image_info: the image info.
131		%
132		% o exception: return any errors or warnings in this structure.
133		%
134		*/
135		static Image ReadFARBFELDImage(const ImageInfo image_info,
136		ExceptionInfo *exception)
137	625	{
138	625	Image
139	625	*image;
140
141	625	QuantumInfo
142	625	*quantum_info;
143
144	625	MagickBooleanType
145	625	status;
146
147	625	MagickSizeType
148	625	magic;
149
150	625	size_t
151	625	extent;
152
153	625	ssize_t
154	625	count,
155	625	y;
156
157	625	unsigned char
158	625	*pixels;
159
160		/*
161		Open image file.
162		*/
163	625	assert(image_info != (const ImageInfo *) NULL);
164	625	assert(image_info->signature == MagickCoreSignature);
165	625	assert(exception != (ExceptionInfo *) NULL);
166	625	assert(exception->signature == MagickCoreSignature);
167	625	if (IsEventLogging() != MagickFalse)
168	0	(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
169	0	image_info->filename);
170	625	image=AcquireImage(image_info,exception);
171	625	status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
172	625	if (status == MagickFalse)
173	63	{
174	63	image=DestroyImageList(image);
175	63	return((Image *) NULL);
176	63	}
177	562	image->depth=16;
178	562	image->endian=MSBEndian;
179	562	magic=ReadBlobLongLong(image);
180	562	if (magic != MagickULLConstant(7377303431559867492))
181	413	ThrowReaderException(CorruptImageError,"ImproperImageHeader");
182	413	image->columns=(size_t) ReadBlobLong(image);
183	413	image->rows=(size_t) ReadBlobLong(image);
184	413	image->alpha_trait=BlendPixelTrait;
185	413	if (image_info->ping != MagickFalse)
186	1	{
187	1	(void) CloseBlob(image);
188	1	return(GetFirstImageInList(image));
189	1	}
190	412	status=SetImageExtent(image,image->columns,image->rows,exception);
191	412	if (status == MagickFalse)
192	126	return(DestroyImageList(image));
193	286	quantum_info=AcquireQuantumInfo(image_info,image);
194	286	if (quantum_info == (QuantumInfo *) NULL)
195	286	ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
196	286	status=SetQuantumFormat(image,quantum_info,UnsignedQuantumFormat);
197	286	extent=GetQuantumExtent(image,quantum_info,RGBAQuantum);
198	286	pixels=GetQuantumPixels(quantum_info);
199	17.6k	for (y=0; y < (ssize_t) image->rows; y++)
200	17.5k	{
201	17.5k	const void
202	17.5k	*stream;
203
204	17.5k	Quantum
205	17.5k	*magick_restrict q;
206
207	17.5k	q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
208	17.5k	if (q == (Quantum *) NULL)
209	0	break;
210	17.5k	stream=ReadBlobStream(image,extent,pixels,&count);
211	17.5k	if (count != (ssize_t) extent)
212	133	break;
213	17.3k	(void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
214	17.3k	RGBAQuantum,(unsigned char *) stream,exception);
215	17.3k	if (SyncAuthenticPixels(image,exception) == MagickFalse)
216	0	break;
217	17.3k	if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse)
218	0	break;
219	17.3k	}
220	286	SetQuantumImageType(image,RGBAQuantum);
221	286	quantum_info=DestroyQuantumInfo(quantum_info);
222	286	if (y < (ssize_t) image->rows)
223	153	ThrowReaderException(CorruptImageError,"UnableToReadImageData");
224	153	if (EOFBlob(image) != MagickFalse)
225	0	ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
226	153	image->filename);
227	153	if (CloseBlob(image) == MagickFalse)
228	0	status=MagickFalse;
229	153	if (status == MagickFalse)
230	0	return(DestroyImageList(image));
231	153	return(GetFirstImageInList(image));
232	153	}
233
234		/*
235		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
236		% %
237		% %
238		% %
239		% R e g i s t e r F A R B F E L D I m a g e %
240		% %
241		% %
242		% %
243		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
244		%
245		% RegisterFARBFELDImage() adds attributes for the FARBFELD image format to
246		% the list of supported formats. The attributes include the image format
247		% tag, a method to read and/or write the format, whether the format
248		% supports the saving of more than one frame to the same file or blob,
249		% whether the format supports native in-memory I/O, and a brief
250		% description of the format.
251		%
252		% The format of the RegisterFARBFELDImage method is:
253		%
254		% size_t RegisterFARBFELDImage(void)
255		%
256		*/
257		ModuleExport size_t RegisterFARBFELDImage(void)
258	10	{
259	10	MagickInfo
260	10	*entry;
261
262	10	entry=AcquireMagickInfo("FARBFELD","FARBFELD","Farbfeld");
263	10	entry->decoder=(DecodeImageHandler *) ReadFARBFELDImage;
264	10	entry->encoder=(EncodeImageHandler *) WriteFARBFELDImage;
265	10	entry->magick=(IsImageFormatHandler *) IsFARBFELD;
266	10	entry->flags\|=CoderRawSupportFlag;
267	10	entry->flags^=CoderAdjoinFlag;
268	10	(void) RegisterMagickInfo(entry);
269	10	entry=AcquireMagickInfo("FARBFELD","FF","Farbfeld");
270	10	entry->decoder=(DecodeImageHandler *) ReadFARBFELDImage;
271	10	entry->encoder=(EncodeImageHandler *) WriteFARBFELDImage;
272	10	entry->magick=(IsImageFormatHandler *) IsFARBFELD;
273	10	entry->flags\|=CoderRawSupportFlag;
274	10	entry->flags^=CoderAdjoinFlag;
275	10	(void) RegisterMagickInfo(entry);
276	10	return(MagickImageCoderSignature);
277	10	}
278
279		/*
280		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
281		% %
282		% %
283		% %
284		% U n r e g i s t e r F A R B F E L D I m a g e %
285		% %
286		% %
287		% %
288		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
289		%
290		% UnregisterFARBFELDImage() removes format registrations made by the
291		% Farbfeld module from the list of supported formats.
292		%
293		% The format of the UnregisterFARBFELDImage method is:
294		%
295		% UnregisterFARBFELDImage(void)
296		%
297		*/
298		ModuleExport void UnregisterFARBFELDImage(void)
299	0	{
300	0	(void) UnregisterMagickInfo("FARBFELD");
301	0	}
302
303		/*
304		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
305		% %
306		% %
307		% %
308		% W r i t e F A R B F E L D I m a g e %
309		% %
310		% %
311		% %
312		%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
313		%
314		% WriteFARBFELDImage() writes an image of raw bits in MSB order to a file.
315		%
316		% The format of the WriteFARBFELDImage method is:
317		%
318		% MagickBooleanType WriteFARBFELDImage(const ImageInfo *image_info,
319		% Image image,ExceptionInfo exception)
320		%
321		% A description of each parameter follows.
322		%
323		% o image_info: the image info.
324		%
325		% o image: The image.
326		%
327		% o exception: return any errors or warnings in this structure.
328		%
329		*/
330		static MagickBooleanType WriteFARBFELDImage(const ImageInfo *image_info,
331		Image image,ExceptionInfo exception)
332	153	{
333	153	MagickBooleanType
334	153	status;
335
336	153	QuantumInfo
337	153	*quantum_info;
338
339	153	const Quantum
340	153	*p;
341
342	153	size_t
343	153	extent;
344
345	153	ssize_t
346	153	count,
347	153	y;
348
349	153	unsigned char
350	153	*pixels;
351
352		/*
353		Open output image file.
354		*/
355	153	assert(image_info != (const ImageInfo *) NULL);
356	153	assert(image_info->signature == MagickCoreSignature);
357	153	assert(image != (Image *) NULL);
358	153	assert(image->signature == MagickCoreSignature);
359	153	assert(exception != (ExceptionInfo *) NULL);
360	153	assert(exception->signature == MagickCoreSignature);
361	153	if (IsEventLogging() != MagickFalse)
362	0	(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
363	153	status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
364	153	if (status == MagickFalse)
365	0	return(status);
366	153	image->endian=MSBEndian;
367	153	(void) WriteBlobLongLong(image,MagickULLConstant(7377303431559867492));
368	153	(void) WriteBlobLong(image,(unsigned int) image->columns);
369	153	(void) WriteBlobLong(image,(unsigned int) image->rows);
370	153	image->depth=16;
371	153	quantum_info=AcquireQuantumInfo(image_info,image);
372	153	if (quantum_info == (QuantumInfo *) NULL)
373	153	ThrowWriterException(ImageError,"MemoryAllocationFailed");
374	153	status=SetQuantumFormat(image,quantum_info,UnsignedQuantumFormat);
375	153	pixels=(unsigned char *) GetQuantumPixels(quantum_info);
376	14.0k	for (y=0; y < (ssize_t) image->rows; y++)
377	13.9k	{
378	13.9k	p=GetVirtualPixels(image,0,y,image->columns,1,exception);
379	13.9k	if (p == (const Quantum *) NULL)
380	0	break;
381	13.9k	extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
382	13.9k	RGBAQuantum,pixels,exception);
383	13.9k	count=WriteBlob(image,extent,pixels);
384	13.9k	if (count != (ssize_t) extent)
385	0	break;
386	13.9k	status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
387	13.9k	image->rows);
388	13.9k	if (status == MagickFalse)
389	0	break;
390	13.9k	}
391	153	quantum_info=DestroyQuantumInfo(quantum_info);
392	153	if (y < (ssize_t) image->rows)
393	153	ThrowWriterException(CorruptImageError,"UnableToWriteImageData");
394	153	if (CloseBlob(image) == MagickFalse)
395	0	status=MagickFalse;
396	153	return(status);
397	153	}