forked from openkylin/imagemagick
442 lines
17 KiB
C
442 lines
17 KiB
C
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% SSSSS FFFFF W W %
|
||
% SS F W W %
|
||
% SSS FFF W W %
|
||
% SS F W W W %
|
||
% SSSSS F W W %
|
||
% %
|
||
% %
|
||
% Read/Write ImageMagick Image Format %
|
||
% %
|
||
% Software Design %
|
||
% Cristy %
|
||
% July 1992 %
|
||
% %
|
||
% %
|
||
% Copyright 1999-2021 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 "magick/studio.h"
|
||
#include "magick/blob.h"
|
||
#include "magick/blob-private.h"
|
||
#include "magick/constitute.h"
|
||
#include "magick/exception.h"
|
||
#include "magick/exception-private.h"
|
||
#include "magick/image.h"
|
||
#include "magick/image-private.h"
|
||
#include "magick/list.h"
|
||
#include "magick/magick.h"
|
||
#include "magick/memory_.h"
|
||
#include "magick/pixel-accessor.h"
|
||
#include "magick/quantum-private.h"
|
||
#include "magick/resource_.h"
|
||
#include "magick/static.h"
|
||
#include "magick/string_.h"
|
||
#include "magick/module.h"
|
||
#include "magick/transform.h"
|
||
#include "magick/utility.h"
|
||
#include "magick/utility-private.h"
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% I s S F W %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% IsSFW() returns MagickTrue if the image format type, identified by the
|
||
% magick string, is SFW.
|
||
%
|
||
% The format of the IsSFW method is:
|
||
%
|
||
% MagickBooleanType IsSFW(const unsigned char *magick,const size_t length)
|
||
%
|
||
% A description of each parameter follows:
|
||
%
|
||
% o magick: compare image format pattern against these bytes.
|
||
%
|
||
% o length: Specifies the length of the magick string.
|
||
%
|
||
*/
|
||
static MagickBooleanType IsSFW(const unsigned char *magick,const size_t length)
|
||
{
|
||
if (length < 5)
|
||
return(MagickFalse);
|
||
if (LocaleNCompare((const char *) magick,"SFW94",5) == 0)
|
||
return(MagickTrue);
|
||
return(MagickFalse);
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% R e a d S F W I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% ReadSFWImage() reads a Seattle Film Works image file 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 ReadSFWImage method is:
|
||
%
|
||
% Image *ReadSFWImage(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 unsigned char *SFWScan(unsigned char *p,const unsigned char *q,
|
||
const unsigned char *target,const size_t length)
|
||
{
|
||
ssize_t
|
||
i;
|
||
|
||
while ((p+length) < q)
|
||
{
|
||
for (i=0; i < (ssize_t) length; i++)
|
||
if (p[i] != target[i])
|
||
break;
|
||
if (i == (ssize_t) length)
|
||
return((unsigned char *) p);
|
||
p++;
|
||
}
|
||
return((unsigned char *) NULL);
|
||
}
|
||
|
||
static void TranslateSFWMarker(unsigned char *marker)
|
||
{
|
||
switch (marker[1])
|
||
{
|
||
case 0xc8: marker[1]=0xd8; break; /* soi */
|
||
case 0xd0: marker[1]=0xe0; break; /* app */
|
||
case 0xcb: marker[1]=0xdb; break; /* dqt */
|
||
case 0xa0: marker[1]=0xc0; break; /* sof */
|
||
case 0xa4: marker[1]=0xc4; break; /* sof */
|
||
case 0xca: marker[1]=0xda; break; /* sos */
|
||
case 0xc9: marker[1]=0xd9; break; /* eoi */
|
||
default: break;
|
||
}
|
||
}
|
||
|
||
static Image *ReadSFWImage(const ImageInfo *image_info,ExceptionInfo *exception)
|
||
{
|
||
static const unsigned char
|
||
HuffmanTable[] =
|
||
{
|
||
0xFF, 0xC4, 0x01, 0xA2, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01,
|
||
0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
|
||
0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
|
||
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04,
|
||
0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x10, 0x00, 0x02, 0x01,
|
||
0x03, 0x03, 0x02, 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00,
|
||
0x01, 0x7D, 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21,
|
||
0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32,
|
||
0x81, 0x91, 0xA1, 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1,
|
||
0xF0, 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18,
|
||
0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36,
|
||
0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
|
||
0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64,
|
||
0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77,
|
||
0x78, 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A,
|
||
0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3,
|
||
0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5,
|
||
0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
|
||
0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9,
|
||
0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA,
|
||
0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0x11,
|
||
0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, 0x04,
|
||
0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, 0x04,
|
||
0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 0x13,
|
||
0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, 0x09,
|
||
0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16, 0x24,
|
||
0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 0x28,
|
||
0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45,
|
||
0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
|
||
0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73,
|
||
0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85,
|
||
0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
|
||
0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9,
|
||
0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2,
|
||
0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4,
|
||
0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
|
||
0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8,
|
||
0xF9, 0xFA
|
||
};
|
||
|
||
FILE
|
||
*file;
|
||
|
||
Image
|
||
*flipped_image,
|
||
*jpeg_image,
|
||
*image;
|
||
|
||
ImageInfo
|
||
*read_info;
|
||
|
||
int
|
||
unique_file;
|
||
|
||
MagickBooleanType
|
||
status;
|
||
|
||
unsigned char
|
||
*header,
|
||
*data;
|
||
|
||
size_t
|
||
extent;
|
||
|
||
ssize_t
|
||
count;
|
||
|
||
unsigned char
|
||
*buffer,
|
||
*offset;
|
||
|
||
/*
|
||
Open image file.
|
||
*/
|
||
assert(image_info != (const ImageInfo *) NULL);
|
||
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 == MagickCoreSignature);
|
||
image=AcquireImage(image_info);
|
||
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
||
if (status == MagickFalse)
|
||
{
|
||
image=DestroyImageList(image);
|
||
return((Image *) NULL);
|
||
}
|
||
/*
|
||
Read image into a buffer.
|
||
*/
|
||
if (GetBlobSize(image) != (size_t) GetBlobSize(image))
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
if (GetBlobSize(image) < 141)
|
||
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
||
buffer=(unsigned char *) AcquireQuantumMemory((size_t) GetBlobSize(image)+
|
||
MaxTextExtent,sizeof(*buffer));
|
||
if (buffer == (unsigned char *) NULL)
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
count=ReadBlob(image,(size_t) GetBlobSize(image),buffer);
|
||
if ((count != (ssize_t) GetBlobSize(image)) ||
|
||
(LocaleNCompare((char *) buffer,"SFW",3) != 0))
|
||
{
|
||
buffer=(unsigned char *) RelinquishMagickMemory(buffer);
|
||
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
||
}
|
||
(void) CloseBlob(image);
|
||
/*
|
||
Find the start of the JFIF data
|
||
*/
|
||
header=SFWScan(buffer,buffer+count-1,(const unsigned char *)
|
||
"\377\310\377\320",4);
|
||
if ((header == (unsigned char *) NULL) ||
|
||
((header+140) > (buffer+GetBlobSize(image))))
|
||
{
|
||
buffer=(unsigned char *) RelinquishMagickMemory(buffer);
|
||
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
||
}
|
||
TranslateSFWMarker(header); /* translate soi and app tags */
|
||
TranslateSFWMarker(header+2);
|
||
(void) memcpy(header+6,"JFIF\0\001\0",7); /* JFIF magic */
|
||
/*
|
||
Translate remaining markers.
|
||
*/
|
||
offset=header+2;
|
||
offset+=(((unsigned int) offset[2]) << 8)+offset[3]+2;
|
||
for ( ; ; )
|
||
{
|
||
if ((offset+4) > (buffer+count-1))
|
||
{
|
||
buffer=(unsigned char *) RelinquishMagickMemory(buffer);
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
}
|
||
TranslateSFWMarker(offset);
|
||
if (offset[1] == 0xda)
|
||
break;
|
||
offset+=(((unsigned int) offset[2]) << 8)+offset[3]+2;
|
||
}
|
||
offset--;
|
||
data=SFWScan(offset,buffer+count-1,(const unsigned char *) "\377\311",2);
|
||
if (data == (unsigned char *) NULL)
|
||
{
|
||
buffer=(unsigned char *) RelinquishMagickMemory(buffer);
|
||
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
||
}
|
||
TranslateSFWMarker(data++); /* translate eoi marker */
|
||
/*
|
||
Write JFIF file.
|
||
*/
|
||
read_info=CloneImageInfo(image_info);
|
||
SetImageInfoBlob(read_info,(void *) NULL,0);
|
||
file=(FILE *) NULL;
|
||
unique_file=AcquireUniqueFileResource(read_info->filename);
|
||
if (unique_file != -1)
|
||
file=fopen_utf8(read_info->filename,"wb");
|
||
if ((unique_file == -1) || (file == (FILE *) NULL))
|
||
{
|
||
buffer=(unsigned char *) RelinquishMagickMemory(buffer);
|
||
read_info=DestroyImageInfo(read_info);
|
||
(void) CopyMagickString(image->filename,read_info->filename,
|
||
MaxTextExtent);
|
||
ThrowFileException(exception,FileOpenError,"UnableToCreateTemporaryFile",
|
||
image->filename);
|
||
image=DestroyImageList(image);
|
||
return((Image *) NULL);
|
||
}
|
||
extent=fwrite(header,(size_t) (offset-header+1),1,file);
|
||
(void) extent;
|
||
extent=fwrite(HuffmanTable,1,sizeof(HuffmanTable)/sizeof(*HuffmanTable),file);
|
||
extent=fwrite(offset+1,(size_t) (data-offset),1,file);
|
||
status=ferror(file) != 0 ? MagickFalse : MagickTrue;
|
||
(void) fclose(file);
|
||
(void) close(unique_file);
|
||
buffer=(unsigned char *) RelinquishMagickMemory(buffer);
|
||
if (status == MagickFalse)
|
||
{
|
||
char
|
||
*message;
|
||
|
||
(void) remove_utf8(read_info->filename);
|
||
read_info=DestroyImageInfo(read_info);
|
||
message=GetExceptionMessage(errno);
|
||
(void) ThrowMagickException(&image->exception,GetMagickModule(),
|
||
FileOpenError,"UnableToWriteFile","`%s': %s",image->filename,message);
|
||
message=DestroyString(message);
|
||
image=DestroyImageList(image);
|
||
return((Image *) NULL);
|
||
}
|
||
/*
|
||
Read JPEG image.
|
||
*/
|
||
(void) CopyMagickString(read_info->magick,"JPEG",MaxTextExtent);
|
||
jpeg_image=ReadImage(read_info,exception);
|
||
(void) RelinquishUniqueFileResource(read_info->filename);
|
||
read_info=DestroyImageInfo(read_info);
|
||
if (jpeg_image == (Image *) NULL)
|
||
{
|
||
image=DestroyImageList(image);
|
||
return(jpeg_image);
|
||
}
|
||
(void) CopyMagickString(jpeg_image->filename,image->filename,MaxTextExtent);
|
||
(void) CopyMagickString(jpeg_image->magick,image->magick,MaxTextExtent);
|
||
image=DestroyImageList(image);
|
||
image=jpeg_image;
|
||
/*
|
||
Correct image orientation.
|
||
*/
|
||
flipped_image=FlipImage(image,exception);
|
||
if (flipped_image != (Image *) NULL)
|
||
{
|
||
DuplicateBlob(flipped_image,image);
|
||
image=DestroyImage(image);
|
||
image=flipped_image;
|
||
}
|
||
return(GetFirstImageInList(image));
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% R e g i s t e r S F W I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% RegisterSFWImage() adds attributes for the SFW 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 RegisterSFWImage method is:
|
||
%
|
||
% size_t RegisterSFWImage(void)
|
||
%
|
||
*/
|
||
ModuleExport size_t RegisterSFWImage(void)
|
||
{
|
||
MagickInfo
|
||
*entry;
|
||
|
||
entry=SetMagickInfo("SFW");
|
||
entry->decoder=(DecodeImageHandler *) ReadSFWImage;
|
||
entry->magick=(IsImageFormatHandler *) IsSFW;
|
||
entry->seekable_stream=MagickTrue;
|
||
entry->adjoin=MagickFalse;
|
||
entry->description=ConstantString("Seattle Film Works");
|
||
entry->magick_module=ConstantString("SFW");
|
||
(void) RegisterMagickInfo(entry);
|
||
return(MagickImageCoderSignature);
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% U n r e g i s t e r S F W I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% UnregisterSFWImage() removes format registrations made by the
|
||
% SFW module from the list of supported formats.
|
||
%
|
||
% The format of the UnregisterSFWImage method is:
|
||
%
|
||
% UnregisterSFWImage(void)
|
||
%
|
||
*/
|
||
ModuleExport void UnregisterSFWImage(void)
|
||
{
|
||
(void) UnregisterMagickInfo("SFW");
|
||
}
|