|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% SSSSS U U N N %
|
|
|
% SS U U NN N %
|
|
|
% SSS U U N N N %
|
|
|
% SS U U N NN %
|
|
|
% SSSSS UUU N N %
|
|
|
% %
|
|
|
% %
|
|
|
% Read/Write Sun Rasterfile 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/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/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"
|
|
|
|
|
|
/*
|
|
|
Forward declarations.
|
|
|
*/
|
|
|
static MagickBooleanType
|
|
|
WriteSUNImage(const ImageInfo *,Image *,ExceptionInfo *);
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% I s S U N %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% IsSUN() returns MagickTrue if the image format type, identified by the
|
|
|
% magick string, is SUN.
|
|
|
%
|
|
|
% The format of the IsSUN method is:
|
|
|
%
|
|
|
% MagickBooleanType IsSUN(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 IsSUN(const unsigned char *magick,const size_t length)
|
|
|
{
|
|
|
if (length < 4)
|
|
|
return(MagickFalse);
|
|
|
if (memcmp(magick,"\131\246\152\225",4) == 0)
|
|
|
return(MagickTrue);
|
|
|
return(MagickFalse);
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% D e c o d e I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% DecodeImage unpacks the packed image pixels into runlength-encoded pixel
|
|
|
% packets.
|
|
|
%
|
|
|
% The format of the DecodeImage method is:
|
|
|
%
|
|
|
% MagickBooleanType DecodeImage(const unsigned char *compressed_pixels,
|
|
|
% const size_t length,unsigned char *pixels)
|
|
|
%
|
|
|
% A description of each parameter follows:
|
|
|
%
|
|
|
% o compressed_pixels: The address of a byte (8 bits) array of compressed
|
|
|
% pixel data.
|
|
|
%
|
|
|
% o length: An integer value that is the total number of bytes of the
|
|
|
% source image (as just read by ReadBlob)
|
|
|
%
|
|
|
% o pixels: The address of a byte (8 bits) array of pixel data created by
|
|
|
% the uncompression process. The number of bytes in this array
|
|
|
% must be at least equal to the number columns times the number of rows
|
|
|
% of the source pixels.
|
|
|
%
|
|
|
*/
|
|
|
static MagickBooleanType DecodeImage(const unsigned char *compressed_pixels,
|
|
|
const size_t length,unsigned char *pixels,size_t extent)
|
|
|
{
|
|
|
const unsigned char
|
|
|
*p;
|
|
|
|
|
|
unsigned char
|
|
|
*q;
|
|
|
|
|
|
ssize_t
|
|
|
count;
|
|
|
|
|
|
unsigned char
|
|
|
byte;
|
|
|
|
|
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
|
|
|
assert(compressed_pixels != (unsigned char *) NULL);
|
|
|
assert(pixels != (unsigned char *) NULL);
|
|
|
p=compressed_pixels;
|
|
|
q=pixels;
|
|
|
while (((size_t) (p-compressed_pixels) < length) &&
|
|
|
((size_t) (q-pixels) < extent))
|
|
|
{
|
|
|
byte=(*p++);
|
|
|
if (byte != 128U)
|
|
|
*q++=byte;
|
|
|
else
|
|
|
{
|
|
|
/*
|
|
|
Runlength-encoded packet: <count><byte>.
|
|
|
*/
|
|
|
if (((size_t) (p-compressed_pixels) >= length))
|
|
|
break;
|
|
|
count=(*p++);
|
|
|
if (count > 0)
|
|
|
{
|
|
|
if (((size_t) (p-compressed_pixels) >= length))
|
|
|
break;
|
|
|
byte=(*p++);
|
|
|
}
|
|
|
while ((count >= 0) && ((size_t) (q-pixels) < extent))
|
|
|
{
|
|
|
*q++=byte;
|
|
|
count--;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
return(((size_t) (q-pixels) == extent) ? MagickTrue : MagickFalse);
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% R e a d S U N I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% ReadSUNImage() reads a SUN 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 ReadSUNImage method is:
|
|
|
%
|
|
|
% Image *ReadSUNImage(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 *ReadSUNImage(const ImageInfo *image_info,ExceptionInfo *exception)
|
|
|
{
|
|
|
#define RMT_EQUAL_RGB 1
|
|
|
#define RMT_NONE 0
|
|
|
#define RMT_RAW 2
|
|
|
#define RT_STANDARD 1
|
|
|
#define RT_ENCODED 2
|
|
|
#define RT_FORMAT_RGB 3
|
|
|
|
|
|
typedef struct _SUNInfo
|
|
|
{
|
|
|
unsigned int
|
|
|
magic,
|
|
|
width,
|
|
|
height,
|
|
|
depth,
|
|
|
length,
|
|
|
type,
|
|
|
maptype,
|
|
|
maplength;
|
|
|
} SUNInfo;
|
|
|
|
|
|
Image
|
|
|
*image;
|
|
|
|
|
|
int
|
|
|
bit;
|
|
|
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
MagickSizeType
|
|
|
number_pixels;
|
|
|
|
|
|
Quantum
|
|
|
*q;
|
|
|
|
|
|
ssize_t
|
|
|
i,
|
|
|
x;
|
|
|
|
|
|
unsigned char
|
|
|
*p;
|
|
|
|
|
|
size_t
|
|
|
bytes_per_line,
|
|
|
extent,
|
|
|
height,
|
|
|
pixels_length,
|
|
|
quantum;
|
|
|
|
|
|
ssize_t
|
|
|
count,
|
|
|
y;
|
|
|
|
|
|
SUNInfo
|
|
|
sun_info;
|
|
|
|
|
|
unsigned char
|
|
|
*sun_data,
|
|
|
*sun_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 SUN raster header.
|
|
|
*/
|
|
|
(void) memset(&sun_info,0,sizeof(sun_info));
|
|
|
sun_info.magic=ReadBlobMSBLong(image);
|
|
|
do
|
|
|
{
|
|
|
/*
|
|
|
Verify SUN identifier.
|
|
|
*/
|
|
|
if (sun_info.magic != 0x59a66a95)
|
|
|
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
|
|
sun_info.width=ReadBlobMSBLong(image);
|
|
|
sun_info.height=ReadBlobMSBLong(image);
|
|
|
sun_info.depth=ReadBlobMSBLong(image);
|
|
|
sun_info.length=ReadBlobMSBLong(image);
|
|
|
sun_info.type=ReadBlobMSBLong(image);
|
|
|
sun_info.maptype=ReadBlobMSBLong(image);
|
|
|
sun_info.maplength=ReadBlobMSBLong(image);
|
|
|
if (sun_info.maplength > GetBlobSize(image))
|
|
|
ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile");
|
|
|
extent=(size_t) (sun_info.height*sun_info.width);
|
|
|
if ((sun_info.height != 0) && (sun_info.width != (extent/sun_info.height)))
|
|
|
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
|
|
if ((sun_info.type != RT_STANDARD) && (sun_info.type != RT_ENCODED) &&
|
|
|
(sun_info.type != RT_FORMAT_RGB))
|
|
|
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
|
|
if ((sun_info.maptype == RMT_NONE) && (sun_info.maplength != 0))
|
|
|
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
|
|
if ((sun_info.depth != 1) && (sun_info.depth != 8) &&
|
|
|
(sun_info.depth != 24) && (sun_info.depth != 32))
|
|
|
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
|
|
if ((sun_info.maptype != RMT_NONE) && (sun_info.maptype != RMT_EQUAL_RGB) &&
|
|
|
(sun_info.maptype != RMT_RAW))
|
|
|
ThrowReaderException(CoderError,"ColormapTypeNotSupported");
|
|
|
image->columns=sun_info.width;
|
|
|
image->rows=sun_info.height;
|
|
|
image->depth=sun_info.depth <= 8 ? sun_info.depth :
|
|
|
MAGICKCORE_QUANTUM_DEPTH;
|
|
|
if (sun_info.depth < 24)
|
|
|
{
|
|
|
size_t
|
|
|
one;
|
|
|
|
|
|
image->colors=sun_info.maplength;
|
|
|
one=1;
|
|
|
if (sun_info.maptype == RMT_NONE)
|
|
|
image->colors=one << sun_info.depth;
|
|
|
if (sun_info.maptype == RMT_EQUAL_RGB)
|
|
|
image->colors=sun_info.maplength/3;
|
|
|
if (image->colors == 0)
|
|
|
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
|
|
if (AcquireImageColormap(image,image->colors,exception) == MagickFalse)
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
}
|
|
|
switch (sun_info.maptype)
|
|
|
{
|
|
|
case RMT_NONE:
|
|
|
break;
|
|
|
case RMT_EQUAL_RGB:
|
|
|
{
|
|
|
unsigned char
|
|
|
*sun_colormap;
|
|
|
|
|
|
/*
|
|
|
Read SUN raster colormap.
|
|
|
*/
|
|
|
sun_colormap=(unsigned char *) AcquireQuantumMemory(image->colors,
|
|
|
sizeof(*sun_colormap));
|
|
|
if (sun_colormap == (unsigned char *) NULL)
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
count=ReadBlob(image,image->colors,sun_colormap);
|
|
|
if (count != (ssize_t) image->colors)
|
|
|
{
|
|
|
sun_colormap=(unsigned char *) RelinquishMagickMemory(sun_colormap);
|
|
|
ThrowReaderException(CorruptImageError,"UnexpectedEndOfFile");
|
|
|
}
|
|
|
for (i=0; i < (ssize_t) image->colors; i++)
|
|
|
image->colormap[i].red=(MagickRealType) ScaleCharToQuantum(
|
|
|
sun_colormap[i]);
|
|
|
count=ReadBlob(image,image->colors,sun_colormap);
|
|
|
if (count != (ssize_t) image->colors)
|
|
|
{
|
|
|
sun_colormap=(unsigned char *) RelinquishMagickMemory(sun_colormap);
|
|
|
ThrowReaderException(CorruptImageError,"UnexpectedEndOfFile");
|
|
|
}
|
|
|
for (i=0; i < (ssize_t) image->colors; i++)
|
|
|
image->colormap[i].green=(MagickRealType) ScaleCharToQuantum(
|
|
|
sun_colormap[i]);
|
|
|
count=ReadBlob(image,image->colors,sun_colormap);
|
|
|
if (count != (ssize_t) image->colors)
|
|
|
{
|
|
|
sun_colormap=(unsigned char *) RelinquishMagickMemory(sun_colormap);
|
|
|
ThrowReaderException(CorruptImageError,"UnexpectedEndOfFile");
|
|
|
}
|
|
|
for (i=0; i < (ssize_t) image->colors; i++)
|
|
|
image->colormap[i].blue=(MagickRealType) ScaleCharToQuantum(
|
|
|
sun_colormap[i]);
|
|
|
sun_colormap=(unsigned char *) RelinquishMagickMemory(sun_colormap);
|
|
|
break;
|
|
|
}
|
|
|
case RMT_RAW:
|
|
|
{
|
|
|
unsigned char
|
|
|
*sun_colormap;
|
|
|
|
|
|
/*
|
|
|
Read SUN raster colormap.
|
|
|
*/
|
|
|
sun_colormap=(unsigned char *) AcquireQuantumMemory(sun_info.maplength,
|
|
|
sizeof(*sun_colormap));
|
|
|
if (sun_colormap == (unsigned char *) NULL)
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
count=ReadBlob(image,sun_info.maplength,sun_colormap);
|
|
|
sun_colormap=(unsigned char *) RelinquishMagickMemory(sun_colormap);
|
|
|
if (count != (ssize_t) sun_info.maplength)
|
|
|
ThrowReaderException(CorruptImageError,"UnexpectedEndOfFile");
|
|
|
break;
|
|
|
}
|
|
|
default:
|
|
|
ThrowReaderException(CoderError,"ColormapTypeNotSupported");
|
|
|
}
|
|
|
image->alpha_trait=sun_info.depth == 32 ? BlendPixelTrait :
|
|
|
UndefinedPixelTrait;
|
|
|
image->columns=sun_info.width;
|
|
|
image->rows=sun_info.height;
|
|
|
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));
|
|
|
if (sun_info.length == 0)
|
|
|
ThrowReaderException(ResourceLimitError,"ImproperImageHeader");
|
|
|
number_pixels=(MagickSizeType) (image->columns*image->rows);
|
|
|
if ((sun_info.type != RT_ENCODED) &&
|
|
|
((number_pixels*sun_info.depth) > (8UL*sun_info.length)))
|
|
|
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
|
|
if (HeapOverflowSanityCheckGetSize(sun_info.width,sun_info.depth,&bytes_per_line) != MagickFalse)
|
|
|
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
|
|
if ((sun_info.type != RT_ENCODED) && (sun_info.length > GetBlobSize(image)))
|
|
|
ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile");
|
|
|
sun_data=(unsigned char *) AcquireQuantumMemory(sun_info.length,
|
|
|
sizeof(*sun_data));
|
|
|
if (sun_data == (unsigned char *) NULL)
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
(void) memset(sun_data,0,sun_info.length*sizeof(*sun_data));
|
|
|
count=(ssize_t) ReadBlob(image,sun_info.length,sun_data);
|
|
|
if ((sun_info.type != RT_ENCODED) && (count != (ssize_t) sun_info.length))
|
|
|
{
|
|
|
sun_data=(unsigned char *) RelinquishMagickMemory(sun_data);
|
|
|
ThrowReaderException(CorruptImageError,"UnableToReadImageData");
|
|
|
}
|
|
|
height=sun_info.height;
|
|
|
if ((height == 0) || (sun_info.width == 0) || (sun_info.depth == 0) ||
|
|
|
((bytes_per_line/sun_info.depth) != sun_info.width))
|
|
|
{
|
|
|
sun_data=(unsigned char *) RelinquishMagickMemory(sun_data);
|
|
|
ThrowReaderException(ResourceLimitError,"ImproperImageHeader");
|
|
|
}
|
|
|
quantum=sun_info.depth == 1 ? 15 : 7;
|
|
|
bytes_per_line+=quantum;
|
|
|
bytes_per_line<<=1;
|
|
|
if ((bytes_per_line >> 1) != ((size_t) sun_info.width*sun_info.depth+quantum))
|
|
|
{
|
|
|
sun_data=(unsigned char *) RelinquishMagickMemory(sun_data);
|
|
|
ThrowReaderException(ResourceLimitError,"ImproperImageHeader");
|
|
|
}
|
|
|
bytes_per_line>>=4;
|
|
|
if (HeapOverflowSanityCheckGetSize(height,bytes_per_line,&pixels_length) != MagickFalse)
|
|
|
{
|
|
|
sun_data=(unsigned char *) RelinquishMagickMemory(sun_data);
|
|
|
ThrowReaderException(ResourceLimitError,"ImproperImageHeader");
|
|
|
}
|
|
|
sun_pixels=(unsigned char *) AcquireQuantumMemory(pixels_length+image->rows,
|
|
|
sizeof(*sun_pixels));
|
|
|
if (sun_pixels == (unsigned char *) NULL)
|
|
|
{
|
|
|
sun_data=(unsigned char *) RelinquishMagickMemory(sun_data);
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
}
|
|
|
(void) memset(sun_pixels,0,(pixels_length+image->rows)*sizeof(*sun_pixels));
|
|
|
if (sun_info.type == RT_ENCODED)
|
|
|
{
|
|
|
status=DecodeImage(sun_data,sun_info.length,sun_pixels,pixels_length);
|
|
|
if (status == MagickFalse)
|
|
|
{
|
|
|
sun_data=(unsigned char *) RelinquishMagickMemory(sun_data);
|
|
|
sun_pixels=(unsigned char *) RelinquishMagickMemory(sun_pixels);
|
|
|
ThrowReaderException(CorruptImageError,"UnableToReadImageData");
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
if (EOFBlob(image) != MagickFalse)
|
|
|
{
|
|
|
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
|
|
|
image->filename);
|
|
|
break;
|
|
|
}
|
|
|
if (sun_info.length > (pixels_length+image->rows))
|
|
|
{
|
|
|
sun_data=(unsigned char *) RelinquishMagickMemory(sun_data);
|
|
|
sun_pixels=(unsigned char *) RelinquishMagickMemory(sun_pixels);
|
|
|
ThrowReaderException(ResourceLimitError,"ImproperImageHeader");
|
|
|
}
|
|
|
(void) memcpy(sun_pixels,sun_data,sun_info.length);
|
|
|
}
|
|
|
sun_data=(unsigned char *) RelinquishMagickMemory(sun_data);
|
|
|
/*
|
|
|
Convert SUN raster image to pixel packets.
|
|
|
*/
|
|
|
p=sun_pixels;
|
|
|
if (sun_info.depth == 1)
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
|
|
if (q == (Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < ((ssize_t) image->columns-7); x+=8)
|
|
|
{
|
|
|
for (bit=7; bit >= 0; bit--)
|
|
|
{
|
|
|
SetPixelIndex(image,(Quantum) ((*p) & (0x01 << bit) ? 0x00 : 0x01),
|
|
|
q);
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
p++;
|
|
|
}
|
|
|
if ((image->columns % 8) != 0)
|
|
|
{
|
|
|
for (bit=7; bit >= (int) (8-(image->columns % 8)); bit--)
|
|
|
{
|
|
|
SetPixelIndex(image,(Quantum) ((*p) & (0x01 << bit) ? 0x00 :
|
|
|
0x01),q);
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
p++;
|
|
|
}
|
|
|
if ((((image->columns/8)+(image->columns % 8 ? 1 : 0)) % 2) != 0)
|
|
|
p++;
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
if (image->storage_class == PseudoClass)
|
|
|
{
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
|
|
if (q == (Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
SetPixelIndex(image,ConstrainColormapIndex(image,*p,exception),q);
|
|
|
p++;
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if ((image->columns % 2) != 0)
|
|
|
p++;
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
size_t
|
|
|
bytes_per_pixel;
|
|
|
|
|
|
bytes_per_pixel=3;
|
|
|
if (image->alpha_trait != UndefinedPixelTrait)
|
|
|
bytes_per_pixel++;
|
|
|
if (bytes_per_line == 0)
|
|
|
bytes_per_line=bytes_per_pixel*image->columns;
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
|
|
if (q == (Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
if (image->alpha_trait != UndefinedPixelTrait)
|
|
|
SetPixelAlpha(image,ScaleCharToQuantum(*p++),q);
|
|
|
if (sun_info.type == RT_STANDARD)
|
|
|
{
|
|
|
SetPixelBlue(image,ScaleCharToQuantum(*p++),q);
|
|
|
SetPixelGreen(image,ScaleCharToQuantum(*p++),q);
|
|
|
SetPixelRed(image,ScaleCharToQuantum(*p++),q);
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
SetPixelRed(image,ScaleCharToQuantum(*p++),q);
|
|
|
SetPixelGreen(image,ScaleCharToQuantum(*p++),q);
|
|
|
SetPixelBlue(image,ScaleCharToQuantum(*p++),q);
|
|
|
}
|
|
|
if (image->colors != 0)
|
|
|
{
|
|
|
SetPixelRed(image,ClampToQuantum(image->colormap[(ssize_t)
|
|
|
GetPixelRed(image,q)].red),q);
|
|
|
SetPixelGreen(image,ClampToQuantum(image->colormap[(ssize_t)
|
|
|
GetPixelGreen(image,q)].green),q);
|
|
|
SetPixelBlue(image,ClampToQuantum(image->colormap[(ssize_t)
|
|
|
GetPixelBlue(image,q)].blue),q);
|
|
|
}
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (((bytes_per_pixel*image->columns) % 2) != 0)
|
|
|
p++;
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
if (image->storage_class == PseudoClass)
|
|
|
(void) SyncImage(image,exception);
|
|
|
sun_pixels=(unsigned char *) RelinquishMagickMemory(sun_pixels);
|
|
|
/*
|
|
|
Proceed to next image.
|
|
|
*/
|
|
|
if (image_info->number_scenes != 0)
|
|
|
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
|
|
|
break;
|
|
|
sun_info.magic=ReadBlobMSBLong(image);
|
|
|
if (sun_info.magic == 0x59a66a95)
|
|
|
{
|
|
|
/*
|
|
|
Allocate next image structure.
|
|
|
*/
|
|
|
AcquireNextImage(image_info,image,exception);
|
|
|
if (GetNextImageInList(image) == (Image *) NULL)
|
|
|
{
|
|
|
status=MagickFalse;
|
|
|
break;
|
|
|
}
|
|
|
image=SyncNextImageInList(image);
|
|
|
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
|
|
|
GetBlobSize(image));
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
} while (sun_info.magic == 0x59a66a95);
|
|
|
(void) CloseBlob(image);
|
|
|
if (status == MagickFalse)
|
|
|
return(DestroyImageList(image));
|
|
|
return(GetFirstImageInList(image));
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% R e g i s t e r S U N I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% RegisterSUNImage() adds attributes for the SUN 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 RegisterSUNImage method is:
|
|
|
%
|
|
|
% size_t RegisterSUNImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport size_t RegisterSUNImage(void)
|
|
|
{
|
|
|
MagickInfo
|
|
|
*entry;
|
|
|
|
|
|
entry=AcquireMagickInfo("SUN","RAS","SUN Rasterfile");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadSUNImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteSUNImage;
|
|
|
entry->magick=(IsImageFormatHandler *) IsSUN;
|
|
|
entry->flags|=CoderDecoderSeekableStreamFlag;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
entry=AcquireMagickInfo("SUN","SUN","SUN Rasterfile");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadSUNImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteSUNImage;
|
|
|
entry->flags|=CoderDecoderSeekableStreamFlag;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
return(MagickImageCoderSignature);
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% U n r e g i s t e r S U N I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% UnregisterSUNImage() removes format registrations made by the
|
|
|
% SUN module from the list of supported formats.
|
|
|
%
|
|
|
% The format of the UnregisterSUNImage method is:
|
|
|
%
|
|
|
% UnregisterSUNImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport void UnregisterSUNImage(void)
|
|
|
{
|
|
|
(void) UnregisterMagickInfo("RAS");
|
|
|
(void) UnregisterMagickInfo("SUN");
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% W r i t e S U N I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% WriteSUNImage() writes an image in the SUN rasterfile format.
|
|
|
%
|
|
|
% The format of the WriteSUNImage method is:
|
|
|
%
|
|
|
% MagickBooleanType WriteSUNImage(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 WriteSUNImage(const ImageInfo *image_info,Image *image,
|
|
|
ExceptionInfo *exception)
|
|
|
{
|
|
|
#define RMT_EQUAL_RGB 1
|
|
|
#define RMT_NONE 0
|
|
|
#define RMT_RAW 2
|
|
|
#define RT_STANDARD 1
|
|
|
#define RT_FORMAT_RGB 3
|
|
|
|
|
|
typedef struct _SUNInfo
|
|
|
{
|
|
|
unsigned int
|
|
|
magic,
|
|
|
width,
|
|
|
height,
|
|
|
depth,
|
|
|
length,
|
|
|
type,
|
|
|
maptype,
|
|
|
maplength;
|
|
|
} SUNInfo;
|
|
|
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
MagickOffsetType
|
|
|
scene;
|
|
|
|
|
|
MagickSizeType
|
|
|
number_pixels;
|
|
|
|
|
|
const Quantum
|
|
|
*p;
|
|
|
|
|
|
ssize_t
|
|
|
i,
|
|
|
x;
|
|
|
|
|
|
size_t
|
|
|
imageListLength;
|
|
|
|
|
|
ssize_t
|
|
|
y;
|
|
|
|
|
|
SUNInfo
|
|
|
sun_info;
|
|
|
|
|
|
/*
|
|
|
Open output image file.
|
|
|
*/
|
|
|
assert(image_info != (const ImageInfo *) NULL);
|
|
|
assert(image_info->signature == MagickCoreSignature);
|
|
|
assert(image != (Image *) NULL);
|
|
|
assert(image->signature == MagickCoreSignature);
|
|
|
if (image->debug != MagickFalse)
|
|
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
|
|
|
assert(exception != (ExceptionInfo *) NULL);
|
|
|
assert(exception->signature == MagickCoreSignature);
|
|
|
status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
return(status);
|
|
|
scene=0;
|
|
|
imageListLength=GetImageListLength(image);
|
|
|
do
|
|
|
{
|
|
|
/*
|
|
|
Initialize SUN raster file header.
|
|
|
*/
|
|
|
(void) TransformImageColorspace(image,sRGBColorspace,exception);
|
|
|
sun_info.magic=0x59a66a95;
|
|
|
if ((image->columns != (unsigned int) image->columns) ||
|
|
|
(image->rows != (unsigned int) image->rows))
|
|
|
ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
|
|
|
sun_info.width=(unsigned int) image->columns;
|
|
|
sun_info.height=(unsigned int) image->rows;
|
|
|
sun_info.type=(unsigned int)
|
|
|
(image->storage_class == DirectClass ? RT_FORMAT_RGB : RT_STANDARD);
|
|
|
sun_info.maptype=RMT_NONE;
|
|
|
sun_info.maplength=0;
|
|
|
number_pixels=(MagickSizeType) image->columns*image->rows;
|
|
|
if ((4*number_pixels) != (size_t) (4*number_pixels))
|
|
|
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
if (image->storage_class == DirectClass)
|
|
|
{
|
|
|
/*
|
|
|
Full color SUN raster.
|
|
|
*/
|
|
|
sun_info.depth=(unsigned int) image->alpha_trait !=
|
|
|
UndefinedPixelTrait ? 32U : 24U;
|
|
|
sun_info.length=(unsigned int) ((image->alpha_trait !=
|
|
|
UndefinedPixelTrait ? 4 : 3)*number_pixels);
|
|
|
sun_info.length+=sun_info.length & 0x01 ? (unsigned int) image->rows :
|
|
|
0;
|
|
|
}
|
|
|
else
|
|
|
if (SetImageMonochrome(image,exception) != MagickFalse)
|
|
|
{
|
|
|
/*
|
|
|
Monochrome SUN raster.
|
|
|
*/
|
|
|
sun_info.depth=1;
|
|
|
sun_info.length=(unsigned int) (((image->columns+7) >> 3)*
|
|
|
image->rows);
|
|
|
sun_info.length+=(unsigned int) (((image->columns/8)+(image->columns %
|
|
|
8 ? 1 : 0)) % 2 ? image->rows : 0);
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
/*
|
|
|
Colormapped SUN raster.
|
|
|
*/
|
|
|
sun_info.depth=8;
|
|
|
sun_info.length=(unsigned int) number_pixels;
|
|
|
sun_info.length+=(unsigned int) (image->columns & 0x01 ? image->rows :
|
|
|
0);
|
|
|
sun_info.maptype=RMT_EQUAL_RGB;
|
|
|
sun_info.maplength=(unsigned int) (3*image->colors);
|
|
|
}
|
|
|
/*
|
|
|
Write SUN header.
|
|
|
*/
|
|
|
(void) WriteBlobMSBLong(image,sun_info.magic);
|
|
|
(void) WriteBlobMSBLong(image,sun_info.width);
|
|
|
(void) WriteBlobMSBLong(image,sun_info.height);
|
|
|
(void) WriteBlobMSBLong(image,sun_info.depth);
|
|
|
(void) WriteBlobMSBLong(image,sun_info.length);
|
|
|
(void) WriteBlobMSBLong(image,sun_info.type);
|
|
|
(void) WriteBlobMSBLong(image,sun_info.maptype);
|
|
|
(void) WriteBlobMSBLong(image,sun_info.maplength);
|
|
|
/*
|
|
|
Convert MIFF to SUN raster pixels.
|
|
|
*/
|
|
|
x=0;
|
|
|
y=0;
|
|
|
if (image->storage_class == DirectClass)
|
|
|
{
|
|
|
unsigned char
|
|
|
*q;
|
|
|
|
|
|
size_t
|
|
|
bytes_per_pixel,
|
|
|
length;
|
|
|
|
|
|
unsigned char
|
|
|
*pixels;
|
|
|
|
|
|
/*
|
|
|
Allocate memory for pixels.
|
|
|
*/
|
|
|
bytes_per_pixel=3;
|
|
|
if (image->alpha_trait != UndefinedPixelTrait)
|
|
|
bytes_per_pixel++;
|
|
|
length=image->columns;
|
|
|
pixels=(unsigned char *) AcquireQuantumMemory(length,4*sizeof(*pixels));
|
|
|
if (pixels == (unsigned char *) NULL)
|
|
|
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
/*
|
|
|
Convert DirectClass packet to SUN RGB pixel.
|
|
|
*/
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
q=pixels;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
if (image->alpha_trait != UndefinedPixelTrait)
|
|
|
*q++=ScaleQuantumToChar(GetPixelAlpha(image,p));
|
|
|
*q++=ScaleQuantumToChar(GetPixelRed(image,p));
|
|
|
*q++=ScaleQuantumToChar(GetPixelGreen(image,p));
|
|
|
*q++=ScaleQuantumToChar(GetPixelBlue(image,p));
|
|
|
p+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (((bytes_per_pixel*image->columns) & 0x01) != 0)
|
|
|
*q++='\0'; /* pad scanline */
|
|
|
(void) WriteBlob(image,(size_t) (q-pixels),pixels);
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
|
|
|
}
|
|
|
else
|
|
|
if (SetImageMonochrome(image,exception) != MagickFalse)
|
|
|
{
|
|
|
unsigned char
|
|
|
bit,
|
|
|
byte;
|
|
|
|
|
|
/*
|
|
|
Convert PseudoClass image to a SUN monochrome image.
|
|
|
*/
|
|
|
(void) SetImageType(image,BilevelType,exception);
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
bit=0;
|
|
|
byte=0;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
byte<<=1;
|
|
|
if (GetPixelLuma(image,p) < (QuantumRange/2.0))
|
|
|
byte|=0x01;
|
|
|
bit++;
|
|
|
if (bit == 8)
|
|
|
{
|
|
|
(void) WriteBlobByte(image,byte);
|
|
|
bit=0;
|
|
|
byte=0;
|
|
|
}
|
|
|
p+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (bit != 0)
|
|
|
(void) WriteBlobByte(image,(unsigned char) (byte << (8-bit)));
|
|
|
if ((((image->columns/8)+
|
|
|
(image->columns % 8 ? 1 : 0)) % 2) != 0)
|
|
|
(void) WriteBlobByte(image,0); /* pad scanline */
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
/*
|
|
|
Dump colormap to file.
|
|
|
*/
|
|
|
for (i=0; i < (ssize_t) image->colors; i++)
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
ClampToQuantum(image->colormap[i].red)));
|
|
|
for (i=0; i < (ssize_t) image->colors; i++)
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
ClampToQuantum(image->colormap[i].green)));
|
|
|
for (i=0; i < (ssize_t) image->colors; i++)
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
ClampToQuantum(image->colormap[i].blue)));
|
|
|
/*
|
|
|
Convert PseudoClass packet to SUN colormapped pixel.
|
|
|
*/
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
(void) WriteBlobByte(image,(unsigned char)
|
|
|
GetPixelIndex(image,p));
|
|
|
p+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (image->columns & 0x01)
|
|
|
(void) WriteBlobByte(image,0); /* pad scanline */
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
if (GetNextImageInList(image) == (Image *) NULL)
|
|
|
break;
|
|
|
image=SyncNextImageInList(image);
|
|
|
status=SetImageProgress(image,SaveImagesTag,scene++,imageListLength);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
} while (image_info->adjoin != MagickFalse);
|
|
|
(void) CloseBlob(image);
|
|
|
return(MagickTrue);
|
|
|
}
|
