|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% M M AAA CCCC %
|
|
|
% MM MM A A C %
|
|
|
% M M M AAAAA C %
|
|
|
% M M A A C %
|
|
|
% M M A A CCCC %
|
|
|
% %
|
|
|
% %
|
|
|
% Read MacPaint 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 "MagickCore/studio.h"
|
|
|
#include "MagickCore/blob.h"
|
|
|
#include "MagickCore/blob-private.h"
|
|
|
#include "MagickCore/cache.h"
|
|
|
#include "MagickCore/colormap.h"
|
|
|
#include "MagickCore/colorspace.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/pixel-accessor.h"
|
|
|
#include "MagickCore/quantum-private.h"
|
|
|
#include "MagickCore/static.h"
|
|
|
#include "MagickCore/string_.h"
|
|
|
#include "MagickCore/module.h"
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% R e a d M A C I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% ReadMACImage() reads an MacPaint 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 ReadMACImage method is:
|
|
|
%
|
|
|
% Image *ReadMACImage(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 *ReadMACImage(const ImageInfo *image_info,ExceptionInfo *exception)
|
|
|
{
|
|
|
Image
|
|
|
*image;
|
|
|
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
Quantum
|
|
|
*q;
|
|
|
|
|
|
ssize_t
|
|
|
x;
|
|
|
|
|
|
unsigned char
|
|
|
*p;
|
|
|
|
|
|
size_t
|
|
|
length;
|
|
|
|
|
|
ssize_t
|
|
|
offset,
|
|
|
y;
|
|
|
|
|
|
unsigned char
|
|
|
count,
|
|
|
bit,
|
|
|
byte,
|
|
|
*pixels;
|
|
|
|
|
|
/*
|
|
|
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,exception);
|
|
|
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
{
|
|
|
image=DestroyImageList(image);
|
|
|
return((Image *) NULL);
|
|
|
}
|
|
|
/*
|
|
|
Read MAC X image.
|
|
|
*/
|
|
|
length=ReadBlobLSBShort(image);
|
|
|
if ((length & 0xff) != 0)
|
|
|
ThrowReaderException(CorruptImageError,"CorruptImage");
|
|
|
for (x=0; x < (ssize_t) 638; x++)
|
|
|
if (ReadBlobByte(image) == EOF)
|
|
|
ThrowReaderException(CorruptImageError,"CorruptImage");
|
|
|
image->columns=576;
|
|
|
image->rows=720;
|
|
|
image->depth=1;
|
|
|
if (AcquireImageColormap(image,2,exception) == MagickFalse)
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
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));
|
|
|
status=ResetImagePixels(image,exception);
|
|
|
if (status == MagickFalse)
|
|
|
return(DestroyImageList(image));
|
|
|
/*
|
|
|
Convert MAC raster image to pixel packets.
|
|
|
*/
|
|
|
length=(image->columns+7)/8;
|
|
|
pixels=(unsigned char *) AcquireQuantumMemory(length+257,sizeof(*pixels));
|
|
|
if (pixels == (unsigned char *) NULL)
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
(void) memset(pixels,0,(length+257)*sizeof(*pixels));
|
|
|
p=pixels;
|
|
|
offset=0;
|
|
|
for (y=0; y < (ssize_t) image->rows; )
|
|
|
{
|
|
|
count=(unsigned char) ReadBlobByte(image);
|
|
|
if (EOFBlob(image) != MagickFalse)
|
|
|
break;
|
|
|
if ((count <= 0) || (count >= 128))
|
|
|
{
|
|
|
byte=(unsigned char) (~ReadBlobByte(image));
|
|
|
count=(~count)+2;
|
|
|
while (count != 0)
|
|
|
{
|
|
|
*p++=byte;
|
|
|
offset++;
|
|
|
count--;
|
|
|
if (offset >= (ssize_t) length)
|
|
|
{
|
|
|
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
|
|
if (q == (Quantum *) NULL)
|
|
|
break;
|
|
|
p=pixels;
|
|
|
bit=0;
|
|
|
byte=0;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
if (bit == 0)
|
|
|
byte=(*p++);
|
|
|
SetPixelIndex(image,((byte & 0x80) != 0 ? 0x01 : 0x00),q);
|
|
|
bit++;
|
|
|
byte<<=1;
|
|
|
if (bit == 8)
|
|
|
bit=0;
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
offset=0;
|
|
|
p=pixels;
|
|
|
y++;
|
|
|
}
|
|
|
}
|
|
|
continue;
|
|
|
}
|
|
|
count++;
|
|
|
while (count != 0)
|
|
|
{
|
|
|
byte=(unsigned char) (~ReadBlobByte(image));
|
|
|
*p++=byte;
|
|
|
offset++;
|
|
|
count--;
|
|
|
if (offset >= (ssize_t) length)
|
|
|
{
|
|
|
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
|
|
if (q == (Quantum *) NULL)
|
|
|
break;
|
|
|
p=pixels;
|
|
|
bit=0;
|
|
|
byte=0;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
if (bit == 0)
|
|
|
byte=(*p++);
|
|
|
SetPixelIndex(image,((byte & 0x80) != 0 ? 0x01 : 0x00),q);
|
|
|
bit++;
|
|
|
byte<<=1;
|
|
|
if (bit == 8)
|
|
|
bit=0;
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
offset=0;
|
|
|
p=pixels;
|
|
|
y++;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
|
|
|
(void) SyncImage(image,exception);
|
|
|
(void) CloseBlob(image);
|
|
|
return(GetFirstImageInList(image));
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% R e g i s t e r M A C I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% RegisterMACImage() adds attributes for the MAC X 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 RegisterMACImage method is:
|
|
|
%
|
|
|
% size_t RegisterMACImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport size_t RegisterMACImage(void)
|
|
|
{
|
|
|
MagickInfo
|
|
|
*entry;
|
|
|
|
|
|
entry=AcquireMagickInfo("MAC","MAC","MAC Paint");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadMACImage;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
return(MagickImageCoderSignature);
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% U n r e g i s t e r M A C I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% UnregisterMACImage() removes format registrations made by the
|
|
|
% MAC module from the list of supported formats.
|
|
|
%
|
|
|
% The format of the UnregisterMACImage method is:
|
|
|
%
|
|
|
% UnregisterMACImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport void UnregisterMACImage(void)
|
|
|
{
|
|
|
(void) UnregisterMagickInfo("MAC");
|
|
|
}
|
