/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% PPPP DDDD BBBB %
% P P D D B B %
% PPPP D D BBBB %
% P D D B B %
% P DDDD BBBB %
% %
% %
% Read/Write Palm Database ImageViewer Image Format. %
% %
% Software Design %
% John Cristy %
% July 1992 %
% %
% %
% Copyright 1999-2007 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 %
% %
% 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/color-private.h"
#include "magick/colorspace.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/monitor.h"
#include "magick/property.h"
#include "magick/quantum-private.h"
#include "magick/quantum-private.h"
#include "magick/static.h"
#include "magick/string_.h"
#include "magick/module.h"
/*
Typedef declarations.
*/
typedef struct _PDBInfo
{
char
name[32];
short int
attributes,
version;
unsigned long
create_time,
modify_time,
archive_time,
modify_number,
application_info,
sort_info;
char
type[4], /* database type identifier "vIMG" */
id[4]; /* database creator identifier "View" */
unsigned long
seed,
next_record;
short int
number_records;
} PDBInfo;
typedef struct _PDBImage
{
char
name[32],
version,
type;
unsigned long
reserved_1,
note;
short int
x_last,
y_last;
unsigned long
reserved_2;
short int
x_anchor,
y_anchor,
width,
height;
} PDBImage;
/*
Forward declarations.
*/
static MagickBooleanType
WritePDBImage(const ImageInfo *,Image *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% 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(Image *image,unsigned char *pixels,
% const size_t length)
%
% A description of each parameter follows:
%
% o image: The address of a structure of type Image.
%
% o pixels: The address of a byte (8 bits) array of pixel data created by
% the decoding process.
%
%
*/
static MagickBooleanType DecodeImage(Image *image,unsigned char *pixels,
const size_t length)
{
long
pixel;
register long
i;
register unsigned char
*p;
ssize_t
count;
p=pixels;
while (p < (pixels+length))
{
pixel=ReadBlobByte(image);
if (pixel <= 0x80)
{
count=(ssize_t) (pixel+1);
for (i=0; i < (long) count; i++)
*p++=(unsigned char) ReadBlobByte(image);
continue;
}
count=(ssize_t) (pixel+1-0x80);
pixel=ReadBlobByte(image);
for (i=0; i < (long) count; i++)
*p++=(unsigned char) pixel;
}
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% I s P D B %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% IsPDB() returns MagickTrue if the image format type, identified by the
% magick string, is PDB.
%
% The format of the ReadPDBImage method is:
%
% MagickBooleanType IsPDB(const unsigned char *magick,const size_t length)
%
% A description of each parameter follows:
%
% o magick: This string is generally the first few bytes of an image file
% or blob.
%
% o length: Specifies the length of the magick string.
%
%
*/
static MagickBooleanType IsPDB(const unsigned char *magick,const size_t length)
{
if (length < 68)
return(MagickFalse);
if (memcmp(magick+60,"vIMGView",8) == 0)
return(MagickTrue);
return(MagickFalse);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d P D B I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadPDBImage() reads an Pilot 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 ReadPDBImage method is:
%
% Image *ReadPDBImage(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 *ReadPDBImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
char
record_type,
tag[3];
Image
*image;
IndexPacket
index;
long
offset,
y;
MagickBooleanType
status;
PDBImage
pdb_image;
PDBInfo
pdb_info;
register IndexPacket
*indexes;
register long
x;
register PixelPacket
*q;
register unsigned char
*p;
ssize_t
count;
unsigned char
*pixels;
unsigned long
bits_per_pixel,
packets;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AllocateImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
/*
Determine if this is a PDB image file.
*/
count=ReadBlob(image,32,(unsigned char *) pdb_info.name);
pdb_info.attributes=(short) ReadBlobMSBShort(image);
pdb_info.version=(short) ReadBlobMSBShort(image);
pdb_info.create_time=ReadBlobMSBLong(image);
pdb_info.modify_time=ReadBlobMSBLong(image);
pdb_info.archive_time=ReadBlobMSBLong(image);
pdb_info.modify_number=ReadBlobMSBLong(image);
pdb_info.application_info=ReadBlobMSBLong(image);
pdb_info.sort_info=ReadBlobMSBLong(image);
count=ReadBlob(image,4,(unsigned char *) pdb_info.type);
count=ReadBlob(image,4,(unsigned char *) pdb_info.id);
if ((count == 0) || (memcmp(pdb_info.type,"vIMG",4) != 0) ||
(memcmp(pdb_info.id,"View",4) != 0))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
pdb_info.seed=ReadBlobMSBLong(image);
pdb_info.next_record=ReadBlobMSBLong(image);
pdb_info.number_records=(short) ReadBlobMSBShort(image);
if (pdb_info.next_record != 0)
ThrowReaderException(CoderError,"MultipleRecordListNotSupported");
/*
Read record header.
*/
offset=(long) ReadBlobMSBLong(image);
count=ReadBlob(image,3,(unsigned char *) tag);
record_type=ReadBlobByte(image);
if (((record_type != 0x00) && (record_type != 0x01)) ||
(memcmp(tag,"\x40\x6f\x80",3) != 0))
ThrowReaderException(CorruptImageError,"CorruptImage");
if ((offset-TellBlob(image)) == 6)
{
(void) ReadBlobByte(image);
(void) ReadBlobByte(image);
}
if (pdb_info.number_records > 1)
{
offset=(long) ReadBlobMSBLong(image);
count=ReadBlob(image,3,(unsigned char *) tag);
record_type=ReadBlobByte(image);
if (((record_type != 0x00) && (record_type != 0x01)) ||
(memcmp(tag,"\x40\x6f\x80",3) != 0))
ThrowReaderException(CorruptImageError,"CorruptImage");
if ((offset-TellBlob(image)) == 6)
{
(void) ReadBlobByte(image);
(void) ReadBlobByte(image);
}
}
/*
Read image header.
*/
count=ReadBlob(image,32,(unsigned char *) pdb_image.name);
pdb_image.version=ReadBlobByte(image);
pdb_image.type=ReadBlobByte(image);
pdb_image.reserved_1=ReadBlobMSBLong(image);
pdb_image.note=ReadBlobMSBLong(image);
pdb_image.x_last=(short) ReadBlobMSBShort(image);
pdb_image.y_last=(short) ReadBlobMSBShort(image);
pdb_image.reserved_2=ReadBlobMSBLong(image);
pdb_image.x_anchor=(short) ReadBlobMSBShort(image);
pdb_image.y_anchor=(short) ReadBlobMSBShort(image);
pdb_image.width=(short) ReadBlobMSBShort(image);
pdb_image.height=(short) ReadBlobMSBShort(image);
/*
Initialize image structure.
*/
image->columns=(unsigned long) pdb_image.width;
image->rows=(unsigned long) pdb_image.height;
image->depth=8;
image->storage_class=PseudoClass;
bits_per_pixel=pdb_image.type == 0 ? 2UL : pdb_image.type == 2 ? 4UL : 1UL;
if (AllocateImageColormap(image,1 << bits_per_pixel) == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
if (image_info->ping != MagickFalse)
{
CloseBlob(image);
return(GetFirstImageInList(image));
}
if (SetImageExtent(image,0,0) == MagickFalse)
{
InheritException(exception,&image->exception);
return(DestroyImageList(image));
}
packets=bits_per_pixel*image->columns/8;
pixels=(unsigned char *) AcquireQuantumMemory(packets+256UL,image->rows*
sizeof(*pixels));
if (pixels == (unsigned char *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
switch (pdb_image.version)
{
case 0:
{
image->compression=NoCompression;
count=(ssize_t) ReadBlob(image,packets,pixels);
break;
}
case 1:
{
image->compression=RLECompression;
(void) DecodeImage(image,pixels,packets);
break;
}
default:
ThrowReaderException(CorruptImageError,
"UnrecognizedImageCompressionType");
}
p=pixels;
switch (bits_per_pixel)
{
case 1:
{
int
bit;
/*
Read 1-bit PDB image.
*/
for (y=0; y < (long) image->rows; y++)
{
q=SetImagePixels(image,0,y,image->columns,1);
if (q == (PixelPacket *) NULL)
break;
indexes=GetIndexes(image);
for (x=0; x < ((long) image->columns-7); x+=8)
{
for (bit=0; bit < 8; bit++)
{
index=(IndexPacket) (*p & (0x80 >> bit) ? 0x00 : 0x01);
indexes[x+bit]=index;
*q++=image->colormap[(long) index];
}
p++;
}
if (SyncImagePixels(image) == MagickFalse)
break;
if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
(QuantumTick(y,image->rows) != MagickFalse))
{
status=image->progress_monitor(LoadImageTag,y,image->rows,
image->client_data);
if (status == MagickFalse)
break;
}
}
break;
}
case 2:
{
/*
Read 2-bit PDB image.
*/
for (y=0; y < (long) image->rows; y++)
{
q=SetImagePixels(image,0,y,image->columns,1);
if (q == (PixelPacket *) NULL)
break;
indexes=GetIndexes(image);
for (x=0; x < (long) image->columns; x+=4)
{
index=ConstrainColormapIndex(image,3UL-((*p >> 6) & 0x03));
indexes[x]=index;
*q++=image->colormap[(long) index];
index=ConstrainColormapIndex(image,3UL-((*p >> 4) & 0x03));
indexes[x+1]=index;
*q++=image->colormap[(long) index];
index=ConstrainColormapIndex(image,3UL-((*p >> 2) & 0x03));
indexes[x+2]=index;
*q++=image->colormap[(long) index];
index=ConstrainColormapIndex(image,3UL-((*p) & 0x03));
indexes[x+3]=index;
*q++=image->colormap[(long) index];
p++;
}
if (SyncImagePixels(image) == MagickFalse)
break;
if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
(QuantumTick(y,image->rows) != MagickFalse))
{
status=image->progress_monitor(LoadImageTag,y,image->rows,
image->client_data);
if (status == MagickFalse)
break;
}
}
break;
}
case 4:
{
/*
Read 4-bit PDB image.
*/
for (y=0; y < (long) image->rows; y++)
{
q=SetImagePixels(image,0,y,image->columns,1);
if (q == (PixelPacket *) NULL)
break;
indexes=GetIndexes(image);
for (x=0; x < (long) image->columns; x+=2)
{
index=ConstrainColormapIndex(image,15UL-((*p >> 4) & 0x0f));
indexes[x]=index;
*q++=image->colormap[(long) index];
index=ConstrainColormapIndex(image,15UL-((*p) & 0x0f));
indexes[x+1]=index;
*q++=image->colormap[(long) index];
p++;
}
if (SyncImagePixels(image) == MagickFalse)
break;
if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
(QuantumTick(y,image->rows) != MagickFalse))
{
status=image->progress_monitor(LoadImageTag,y,image->rows,
image->client_data);
if (status == MagickFalse)
break;
}
}
break;
}
default:
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
}
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
if (EOFBlob(image) != MagickFalse)
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
if ((offset-TellBlob(image)) == 0)
{
char
*comment;
int
c;
register char
*p;
unsigned long
length;
/*
Read comment.
*/
c=ReadBlobByte(image);
length=MaxTextExtent;
comment=AcquireString((char *) NULL);
for (p=comment; c != EOF; p++)
{
if ((size_t) (p-comment+MaxTextExtent) >= length)
{
*p='\0';
length<<=1;
length+=MaxTextExtent;
comment=(char *) ResizeQuantumMemory(comment,length+MaxTextExtent,
sizeof(*comment));
if (comment == (char *) NULL)
break;
p=comment+strlen(comment);
}
*p=c;
c=ReadBlobByte(image);
}
*p='\0';
if (comment == (char *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
(void) SetImageProperty(image,"comment",comment);
comment=DestroyString(comment);
}
CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e g i s t e r P D B I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RegisterPDBImage() adds properties for the PDB image format to
% the list of supported formats. The properties 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 RegisterPDBImage method is:
%
% unsigned long RegisterPDBImage(void)
%
*/
ModuleExport unsigned long RegisterPDBImage(void)
{
MagickInfo
*entry;
entry=SetMagickInfo("PDB");
entry->decoder=(DecodeImageHandler *) ReadPDBImage;
entry->encoder=(EncodeImageHandler *) WritePDBImage;
entry->magick=(IsImageFormatHandler *) IsPDB;
entry->description=ConstantString("Palm Database ImageViewer Format");
entry->module=ConstantString("PDB");
(void) RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n r e g i s t e r P D B I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% UnregisterPDBImage() removes format registrations made by the
% PDB module from the list of supported formats.
%
% The format of the UnregisterPDBImage method is:
%
% UnregisterPDBImage(void)
%
*/
ModuleExport void UnregisterPDBImage(void)
{
(void) UnregisterMagickInfo("PDB");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e P D B I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% WritePDBImage() writes an image
%
% The format of the WritePDBImage method is:
%
% MagickBooleanType WritePDBImage(const ImageInfo *image_info,Image *image)
%
% A description of each parameter follows.
%
% o image_info: The image info.
%
% o image: The image.
%
%
*/
static unsigned char *EncodeRLE(unsigned char *destination,
unsigned char *source,unsigned long literal,unsigned long repeat)
{
if (literal > 0)
*destination++=(unsigned char) (literal-1);
(void) CopyMagickMemory(destination,source,literal);
destination+=literal;
if (repeat > 0)
{
*destination++=(unsigned char) (0x80 | (repeat-1));
*destination++=source[literal];
}
return(destination);
}
static MagickBooleanType WritePDBImage(const ImageInfo *image_info,Image *image)
{
const char
*comment;
int
bits;
long
y;
MagickBooleanType
status;
PDBImage
pdb_image;
PDBInfo
pdb_info;
QuantumInfo
quantum_info;
register const PixelPacket
*p;
register long
x;
register unsigned char
*q;
size_t
packet_size;
unsigned char
*buffer,
*runlength,
*scanline;
unsigned long
bits_per_pixel,
literal,
packets,
repeat;
/*
Open output image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == MagickFalse)
return(status);
if (image_info->colorspace == UndefinedColorspace)
(void) SetImageColorspace(image,RGBColorspace);
bits_per_pixel=image->depth;
if (GetImageType(image,&image->exception) == BilevelType)
bits_per_pixel=1;
if ((bits_per_pixel != 1) && (bits_per_pixel != 2))
bits_per_pixel=4;
(void) ResetMagickMemory(pdb_info.name,0,32);
(void) CopyMagickString(pdb_info.name,image_info->filename,32);
pdb_info.attributes=0;
pdb_info.version=0;
pdb_info.create_time=time(NULL);
pdb_info.modify_time=pdb_info.create_time;
pdb_info.archive_time=0;
pdb_info.modify_number=0;
pdb_info.application_info=0;
pdb_info.sort_info=0;
(void) CopyMagickMemory(pdb_info.type,"vIMG",4);
(void) CopyMagickMemory(pdb_info.id,"View",4);
pdb_info.seed=0;
pdb_info.next_record=0;
comment=GetImageProperty(image,"comment");
pdb_info.number_records=(comment == (const char *) NULL ? 1 : 2);
(void) WriteBlob(image,32,(unsigned char *) pdb_info.name);
(void) WriteBlobMSBShort(image,(unsigned short) pdb_info.attributes);
(void) WriteBlobMSBShort(image,(unsigned short) pdb_info.version);
(void) WriteBlobMSBLong(image,pdb_info.create_time);
(void) WriteBlobMSBLong(image,pdb_info.modify_time);
(void) WriteBlobMSBLong(image,pdb_info.archive_time);
(void) WriteBlobMSBLong(image,pdb_info.modify_number);
(void) WriteBlobMSBLong(image,pdb_info.application_info);
(void) WriteBlobMSBLong(image,pdb_info.sort_info);
(void) WriteBlob(image,4,(unsigned char *) pdb_info.type);
(void) WriteBlob(image,4,(unsigned char *) pdb_info.id);
(void) WriteBlobMSBLong(image,(unsigned long) pdb_info.seed);
(void) WriteBlobMSBLong(image,(unsigned long) pdb_info.next_record);
(void) WriteBlobMSBShort(image,(unsigned short) pdb_info.number_records);
(void) CopyMagickString(pdb_image.name,pdb_info.name,32);
pdb_image.version=1; /* RLE Compressed */
switch (bits_per_pixel)
{
case 1: pdb_image.type=(char) 0xff; break; /* monochrome */
case 2: pdb_image.type=(char) 0x00; break; /* 2 bit gray */
default: pdb_image.type=(char) 0x02; /* 4 bit gray */
}
pdb_image.reserved_1=0;
pdb_image.note=0;
pdb_image.x_last=0;
pdb_image.y_last=0;
pdb_image.reserved_2=0;
pdb_image.x_anchor=(short) 0xffff;
pdb_image.y_anchor=(short) 0xffff;
pdb_image.width=(short) image->columns;
if (image->columns % 16)
pdb_image.width=(short) (16*(image->columns/16+1));
pdb_image.height=(short) image->rows;
packets=(bits_per_pixel*image->columns/8)*image->rows;
runlength=(unsigned char *) AcquireQuantumMemory(2UL*packets,
sizeof(*runlength));
if (runlength == (unsigned char *) NULL)
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
buffer=(unsigned char *) AcquireQuantumMemory(256UL,sizeof(*buffer));
if (buffer == (unsigned char *) NULL)
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
packet_size=(size_t) (image->depth > 8 ? 2: 1);
scanline=(unsigned char *) AcquireQuantumMemory(image->columns,packet_size*
sizeof(*scanline));
if (scanline == (unsigned char *) NULL)
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
if (image_info->colorspace == UndefinedColorspace)
(void) SetImageColorspace(image,RGBColorspace);
/*
Convert to GRAY raster scanline.
*/
GetQuantumInfo(image_info,&quantum_info);
bits=8/(long) bits_per_pixel-1; /* start at most significant bits */
literal=0;
repeat=0;
q=runlength;
buffer[0]=0x00;
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
(void) ImportQuantumPixels(image,&quantum_info,GrayQuantum,scanline);
for (x=0; x < pdb_image.width; x++)
{
if (x < (long) image->columns)
buffer[literal+repeat]|=(0xff-scanline[x*packet_size]) >>
(8-bits_per_pixel) << bits*bits_per_pixel;
bits--;
if (bits < 0)
{
if (((literal+repeat) > 0) &&
(buffer[literal+repeat] == buffer[literal+repeat-1]))
{
if (repeat == 0)
{
literal--;
repeat++;
}
repeat++;
if (0x7f < repeat)
{
q=EncodeRLE(q,buffer,literal,repeat);
literal=0;
repeat=0;
}
}
else
{
if (repeat >= 2)
literal+=repeat;
else
{
q=EncodeRLE(q,buffer,literal,repeat);
buffer[0]=buffer[literal+repeat];
literal=0;
}
literal++;
repeat=0;
if (0x7f < literal)
{
q=EncodeRLE(q,buffer,(literal < 0x80 ? literal : 0x80),0);
(void) CopyMagickMemory(buffer,buffer+literal+repeat,0x80);
literal-=0x80;
}
}
bits=8/(long) bits_per_pixel-1;
buffer[literal+repeat]=0x00;
}
}
if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
(QuantumTick(y,image->rows) != MagickFalse))
{
status=image->progress_monitor(SaveImageTag,y,image->rows,
image->client_data);
if (status == MagickFalse)
break;
}
}
q=EncodeRLE(q,buffer,literal,repeat);
scanline=(unsigned char *) RelinquishMagickMemory(scanline);
buffer=(unsigned char *) RelinquishMagickMemory(buffer);
/*
Write the Image record header.
*/
(void) WriteBlobMSBLong(image,(unsigned long)
(TellBlob(image)+8*pdb_info.number_records));
(void) WriteBlobByte(image,0x40);
(void) WriteBlobByte(image,0x6f);
(void) WriteBlobByte(image,0x80);
(void) WriteBlobByte(image,0);
if (pdb_info.number_records > 1)
{
/*
Write the comment record header.
*/
(void) WriteBlobMSBLong(image,(unsigned long) (TellBlob(image)+8+58+q-
runlength));
(void) WriteBlobByte(image,0x40);
(void) WriteBlobByte(image,0x6f);
(void) WriteBlobByte(image,0x80);
(void) WriteBlobByte(image,1);
}
/*
Write the Image data.
*/
(void) WriteBlob(image,32,(unsigned char *) pdb_image.name);
(void) WriteBlobByte(image,(unsigned char) pdb_image.version);
(void) WriteBlobByte(image,(unsigned char) pdb_image.type);
(void) WriteBlobMSBLong(image,pdb_image.reserved_1);
(void) WriteBlobMSBLong(image,pdb_image.note);
(void) WriteBlobMSBShort(image,(unsigned short) pdb_image.x_last);
(void) WriteBlobMSBShort(image,(unsigned short) pdb_image.y_last);
(void) WriteBlobMSBLong(image,pdb_image.reserved_2);
(void) WriteBlobMSBShort(image,(unsigned short) pdb_image.x_anchor);
(void) WriteBlobMSBShort(image,(unsigned short) pdb_image.y_anchor);
(void) WriteBlobMSBShort(image,(unsigned short) pdb_image.width);
(void) WriteBlobMSBShort(image,(unsigned short) pdb_image.height);
(void) WriteBlob(image,(size_t) (q-runlength),runlength);
runlength=(unsigned char *) RelinquishMagickMemory(runlength);
if (pdb_info.number_records > 1)
(void) WriteBlobString(image,comment);
CloseBlob(image);
return(MagickTrue);
}
|
