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imagemagick/coders/ps2.c

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Import Upstream version 6.9.11.60
2023-02-03 21:16:55 +08:00
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% PPPP SSSSS 22222 %
% P P SS 22 %
% PPPP SSS 222 %
% P SS 22 %
% P SSSSS 22222 %
% %
% %
% Write Postscript Level II 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/attribute.h"
#include "magick/blob.h"
#include "magick/blob-private.h"
#include "magick/cache.h"
#include "magick/color.h"
#include "magick/color-private.h"
#include "magick/compress.h"
#include "magick/constitute.h"
#include "magick/draw.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/geometry.h"
#include "magick/image.h"
#include "magick/image-private.h"
#include "magick/list.h"
#include "magick/magick.h"
#include "magick/memory_.h"
#include "magick/module.h"
#include "magick/monitor.h"
#include "magick/monitor-private.h"
#include "magick/monitor-private.h"
#include "magick/option.h"
#include "magick/pixel-accessor.h"
#include "magick/property.h"
#include "magick/quantum-private.h"
#include "magick/resource_.h"
#include "magick/static.h"
#include "magick/string_.h"
#include "magick/timer-private.h"
#include "magick/utility.h"
/*
Define declarations.
*/
#if defined(MAGICKCORE_TIFF_DELEGATE)
#define CCITTParam "-1"
#else
#define CCITTParam "0"
#endif
/*
Forward declarations.
*/
static MagickBooleanType
WritePS2Image(const ImageInfo *,Image *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e g i s t e r P S 2 I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RegisterPS2Image() adds properties for the PS2 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 RegisterPS2Image method is:
%
% size_t RegisterPS2Image(void)
%
*/
ModuleExport size_t RegisterPS2Image(void)
{
MagickInfo
*entry;
entry=SetMagickInfo("EPS2");
entry->encoder=(EncodeImageHandler *) WritePS2Image;
entry->adjoin=MagickFalse;
entry->seekable_stream=MagickTrue;
entry->blob_support=MagickFalse;
entry->description=ConstantString("Level II Encapsulated PostScript");
entry->mime_type=ConstantString("application/postscript");
entry->magick_module=ConstantString("PS2");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("PS2");
entry->encoder=(EncodeImageHandler *) WritePS2Image;
entry->seekable_stream=MagickTrue;
entry->blob_support=MagickFalse;
entry->description=ConstantString("Level II PostScript");
entry->mime_type=ConstantString("application/postscript");
entry->magick_module=ConstantString("PS2");
(void) RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n r e g i s t e r P S 2 I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% UnregisterPS2Image() removes format registrations made by the
% PS2 module from the list of supported formats.
%
% The format of the UnregisterPS2Image method is:
%
% UnregisterPS2Image(void)
%
*/
ModuleExport void UnregisterPS2Image(void)
{
(void) UnregisterMagickInfo("EPS2");
(void) UnregisterMagickInfo("PS2");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e P S 2 I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% WritePS2Image translates an image to encapsulated Postscript
% Level II for printing. If the supplied geometry is null, the image is
% centered on the Postscript page. Otherwise, the image is positioned as
% specified by the geometry.
%
% The format of the WritePS2Image method is:
%
% MagickBooleanType WritePS2Image(const ImageInfo *image_info,Image *image)
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o image: the image.
%
*/
static MagickBooleanType Huffman2DEncodeImage(const ImageInfo *image_info,
Image *image,Image *inject_image)
{
Image
*group4_image;
ImageInfo
*write_info;
MagickBooleanType
status;
size_t
length;
unsigned char
*group4;
group4_image=CloneImage(inject_image,0,0,MagickTrue,&image->exception);
if (group4_image == (Image *) NULL)
return(MagickFalse);
write_info=CloneImageInfo(image_info);
(void) CopyMagickString(write_info->filename,"GROUP4:",MaxTextExtent);
(void) CopyMagickString(write_info->magick,"GROUP4",MaxTextExtent);
group4=(unsigned char *) ImageToBlob(write_info,group4_image,&length,
&image->exception);
write_info=DestroyImageInfo(write_info);
group4_image=DestroyImage(group4_image);
if (group4 == (unsigned char *) NULL)
return(MagickFalse);
status=MagickTrue;
if (WriteBlob(image,length,group4) != (ssize_t) length)
status=MagickFalse;
group4=(unsigned char *) RelinquishMagickMemory(group4);
return(status);
}
static MagickBooleanType WritePS2Image(const ImageInfo *image_info,Image *image)
{
static const char
PostscriptProlog[] =
"%%%%BeginProlog\n"
"%%\n"
"%% Display a color image. The image is displayed in color on\n"
"%% Postscript viewers or printers that support color, otherwise\n"
"%% it is displayed as grayscale.\n"
"%%\n"
"/DirectClassImage\n"
"{\n"
" %%\n"
" %% Display a DirectClass image.\n"
" %%\n"
" colorspace 0 eq\n"
" {\n"
" /DeviceRGB setcolorspace\n"
" <<\n"
" /ImageType 1\n"
" /Width columns\n"
" /Height rows\n"
" /BitsPerComponent 8\n"
" /Decode [0 1 0 1 0 1]\n"
" /ImageMatrix [columns 0 0 rows neg 0 rows]\n"
" compression 0 gt\n"
" { /DataSource pixel_stream %s }\n"
" { /DataSource pixel_stream %s } ifelse\n"
" >> image\n"
" }\n"
" {\n"
" /DeviceCMYK setcolorspace\n"
" <<\n"
" /ImageType 1\n"
" /Width columns\n"
" /Height rows\n"
" /BitsPerComponent 8\n"
" /Decode [1 0 1 0 1 0 1 0]\n"
" /ImageMatrix [columns 0 0 rows neg 0 rows]\n"
" compression 0 gt\n"
" { /DataSource pixel_stream %s }\n"
" { /DataSource pixel_stream %s } ifelse\n"
" >> image\n"
" } ifelse\n"
"} bind def\n"
"\n"
"/PseudoClassImage\n"
"{\n"
" %%\n"
" %% Display a PseudoClass image.\n"
" %%\n"
" %% Parameters:\n"
" %% colors: number of colors in the colormap.\n"
" %%\n"
" currentfile buffer readline pop\n"
" token pop /colors exch def pop\n"
" colors 0 eq\n"
" {\n"
" %%\n"
" %% Image is grayscale.\n"
" %%\n"
" currentfile buffer readline pop\n"
" token pop /bits exch def pop\n"
" /DeviceGray setcolorspace\n"
" <<\n"
" /ImageType 1\n"
" /Width columns\n"
" /Height rows\n"
" /BitsPerComponent bits\n"
" /Decode [0 1]\n"
" /ImageMatrix [columns 0 0 rows neg 0 rows]\n"
" compression 0 gt\n"
" { /DataSource pixel_stream %s }\n"
" {\n"
" /DataSource pixel_stream %s\n"
" <<\n"
" /K " CCITTParam "\n"
" /Columns columns\n"
" /Rows rows\n"
" >> /CCITTFaxDecode filter\n"
" } ifelse\n"
" >> image\n"
" }\n"
" {\n"
" %%\n"
" %% Parameters:\n"
" %% colormap: red, green, blue color packets.\n"
" %%\n"
" /colormap colors 3 mul string def\n"
" currentfile colormap readhexstring pop pop\n"
" currentfile buffer readline pop\n"
" [ /Indexed /DeviceRGB colors 1 sub colormap ] setcolorspace\n"
" <<\n"
" /ImageType 1\n"
" /Width columns\n"
" /Height rows\n"
" /BitsPerComponent 8\n"
" /Decode [0 255]\n"
" /ImageMatrix [columns 0 0 rows neg 0 rows]\n"
" compression 0 gt\n"
" { /DataSource pixel_stream %s }\n"
" { /DataSource pixel_stream %s } ifelse\n"
" >> image\n"
" } ifelse\n"
"} bind def\n"
"\n"
"/DisplayImage\n"
"{\n"
" %%\n"
" %% Display a DirectClass or PseudoClass image.\n"
" %%\n"
" %% Parameters:\n"
" %% x & y translation.\n"
" %% x & y scale.\n"
" %% label pointsize.\n"
" %% image label.\n"
" %% image columns & rows.\n"
" %% class: 0-DirectClass or 1-PseudoClass.\n"
" %% colorspace: 0-RGB or 1-CMYK.\n"
" %% compression: 0-RLECompression or 1-NoCompression.\n"
" %% hex color packets.\n"
" %%\n"
" gsave\n"
" /buffer 512 string def\n"
" /pixel_stream currentfile def\n"
"\n"
" currentfile buffer readline pop\n"
" token pop /x exch def\n"
" token pop /y exch def pop\n"
" x y translate\n"
" currentfile buffer readline pop\n"
" token pop /x exch def\n"
" token pop /y exch def pop\n"
" currentfile buffer readline pop\n"
" token pop /pointsize exch def pop\n",
PostscriptEpilog[] =
" x y scale\n"
" currentfile buffer readline pop\n"
" token pop /columns exch def\n"
" token pop /rows exch def pop\n"
" currentfile buffer readline pop\n"
" token pop /class exch def pop\n"
" currentfile buffer readline pop\n"
" token pop /colorspace exch def pop\n"
" currentfile buffer readline pop\n"
" token pop /compression exch def pop\n"
" class 0 gt { PseudoClassImage } { DirectClassImage } ifelse\n"
" grestore\n";
char
buffer[MaxTextExtent],
date[MaxTextExtent],
page_geometry[MaxTextExtent],
**labels;
CompressionType
compression;
const char
*filter,
*value;
double
pointsize;
GeometryInfo
geometry_info;
MagickOffsetType
scene,
start,
stop;
MagickBooleanType
progress,
status;
MagickOffsetType
offset;
MagickSizeType
number_pixels;
MagickStatusType
flags;
PointInfo
delta,
resolution,
scale;
RectangleInfo
geometry,
media_info,
page_info;
const IndexPacket
*indexes;
const PixelPacket
*p;
ssize_t
x;
ssize_t
i;
SegmentInfo
bounds;
size_t
imageListLength,
length,
page,
text_size;
ssize_t
j,
y;
time_t
timer;
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);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == MagickFalse)
return(status);
compression=image->compression;
if (image_info->compression != UndefinedCompression)
compression=image_info->compression;
switch (compression)
{
#if !defined(MAGICKCORE_JPEG_DELEGATE)
case JPEGCompression:
{
compression=RLECompression;
(void) ThrowMagickException(&image->exception,GetMagickModule(),
MissingDelegateError,"DelegateLibrarySupportNotBuiltIn","`%s' (JPEG)",
image->filename);
break;
}
#endif
default:
break;
}
(void) memset(&bounds,0,sizeof(bounds));
page=1;
scene=0;
imageListLength=GetImageListLength(image);
do
{
/*
Scale relative to dots-per-inch.
*/
delta.x=DefaultResolution;
delta.y=DefaultResolution;
resolution.x=image->x_resolution;
resolution.y=image->y_resolution;
if ((resolution.x == 0.0) || (resolution.y == 0.0))
{
flags=ParseGeometry(PSDensityGeometry,&geometry_info);
resolution.x=geometry_info.rho;
resolution.y=geometry_info.sigma;
if ((flags & SigmaValue) == 0)
resolution.y=resolution.x;
}
if (image_info->density != (char *) NULL)
{
flags=ParseGeometry(image_info->density,&geometry_info);
resolution.x=geometry_info.rho;
resolution.y=geometry_info.sigma;
if ((flags & SigmaValue) == 0)
resolution.y=resolution.x;
}
if (image->units == PixelsPerCentimeterResolution)
{
resolution.x=(100.0*2.54*resolution.x+0.5)/100.0;
resolution.y=(100.0*2.54*resolution.y+0.5)/100.0;
}
SetGeometry(image,&geometry);
(void) FormatLocaleString(page_geometry,MaxTextExtent,"%.20gx%.20g",
(double) image->columns,(double) image->rows);
if (image_info->page != (char *) NULL)
(void) CopyMagickString(page_geometry,image_info->page,MaxTextExtent);
else
if ((image->page.width != 0) && (image->page.height != 0))
(void) FormatLocaleString(page_geometry,MaxTextExtent,
"%.20gx%.20g%+.20g%+.20g",(double) image->page.width,(double)
image->page.height,(double) image->page.x,(double) image->page.y);
else
if ((image->gravity != UndefinedGravity) &&
(LocaleCompare(image_info->magick,"PS") == 0))
(void) CopyMagickString(page_geometry,PSPageGeometry,MaxTextExtent);
(void) ConcatenateMagickString(page_geometry,">",MaxTextExtent);
(void) ParseMetaGeometry(page_geometry,&geometry.x,&geometry.y,
&geometry.width,&geometry.height);
scale.x=PerceptibleReciprocal(resolution.x)*geometry.width*delta.x;
geometry.width=(size_t) floor(scale.x+0.5);
scale.y=PerceptibleReciprocal(resolution.y)*geometry.height*delta.y;
geometry.height=(size_t) floor(scale.y+0.5);
(void) ParseAbsoluteGeometry(page_geometry,&media_info);
(void) ParseGravityGeometry(image,page_geometry,&page_info,
&image->exception);
if (image->gravity != UndefinedGravity)
{
geometry.x=(-page_info.x);
geometry.y=(ssize_t) (media_info.height+page_info.y-image->rows);
}
pointsize=12.0;
if (image_info->pointsize != 0.0)
pointsize=image_info->pointsize;
text_size=0;
value=GetImageProperty(image,"label");
if (value != (const char *) NULL)
text_size=(size_t) (MultilineCensus(value)*pointsize+12);
if (page == 1)
{
/*
Output Postscript header.
*/
if (LocaleCompare(image_info->magick,"PS2") == 0)
(void) CopyMagickString(buffer,"%!PS-Adobe-3.0\n",MaxTextExtent);
else
(void) CopyMagickString(buffer,"%!PS-Adobe-3.0 EPSF-3.0\n",
MaxTextExtent);
(void) WriteBlobString(image,buffer);
(void) WriteBlobString(image,"%%Creator: (ImageMagick)\n");
(void) FormatLocaleString(buffer,MaxTextExtent,"%%%%Title: (%s)\n",
image->filename);
(void) WriteBlobString(image,buffer);
timer=GetMagickTime();
(void) FormatMagickTime(timer,MaxTextExtent,date);
(void) FormatLocaleString(buffer,MaxTextExtent,
"%%%%CreationDate: (%s)\n",date);
(void) WriteBlobString(image,buffer);
bounds.x1=(double) geometry.x;
bounds.y1=(double) geometry.y;
bounds.x2=(double) geometry.x+geometry.width;
bounds.y2=(double) geometry.y+geometry.height+text_size;
if ((image_info->adjoin != MagickFalse) &&
(GetNextImageInList(image) != (Image *) NULL))
(void) CopyMagickString(buffer,"%%BoundingBox: (atend)\n",
MaxTextExtent);
else
{
(void) FormatLocaleString(buffer,MaxTextExtent,
"%%%%BoundingBox: %.20g %.20g %.20g %.20g\n",ceil(bounds.x1-0.5),
ceil(bounds.y1-0.5),floor(bounds.x2+0.5),floor(bounds.y2+0.5));
(void) WriteBlobString(image,buffer);
(void) FormatLocaleString(buffer,MaxTextExtent,
"%%%%HiResBoundingBox: %g %g %g %g\n",bounds.x1,
bounds.y1,bounds.x2,bounds.y2);
}
(void) WriteBlobString(image,buffer);
value=GetImageProperty(image,"label");
if (value != (const char *) NULL)
(void) WriteBlobString(image,
"%%DocumentNeededResources: font Helvetica\n");
(void) WriteBlobString(image,"%%LanguageLevel: 2\n");
if (LocaleCompare(image_info->magick,"PS2") != 0)
(void) WriteBlobString(image,"%%Pages: 1\n");
else
{
(void) WriteBlobString(image,"%%Orientation: Portrait\n");
(void) WriteBlobString(image,"%%PageOrder: Ascend\n");
if (image_info->adjoin == MagickFalse)
(void) CopyMagickString(buffer,"%%Pages: 1\n",MaxTextExtent);
else
(void) FormatLocaleString(buffer,MaxTextExtent,
"%%%%Pages: %.20g\n",(double) GetImageListLength(image));
(void) WriteBlobString(image,buffer);
}
if (image->colorspace == CMYKColorspace)
(void) WriteBlobString(image,
"%%DocumentProcessColors: Cyan Magenta Yellow Black\n");
(void) WriteBlobString(image,"%%EndComments\n");
(void) WriteBlobString(image,"\n%%BeginDefaults\n");
(void) WriteBlobString(image,"%%EndDefaults\n\n");
/*
Output Postscript commands.
*/
switch (compression)
{
case NoCompression:
{
filter="/ASCII85Decode filter";
break;
}
case JPEGCompression:
{
filter="/DCTDecode filter";
break;
}
case LZWCompression:
{
filter="/LZWDecode filter";
break;
}
case FaxCompression:
case Group4Compression:
{
filter=" ";
break;
}
default:
{
filter="/RunLengthDecode filter";
break;
}
}
(void) FormatLocaleString(buffer,MagickPathExtent,PostscriptProlog,
filter,filter,filter,filter,filter,filter,filter,filter);
(void) WriteBlob(image,strlen(buffer),(const unsigned char *) buffer);
value=GetImageProperty(image,"label");
if (value != (const char *) NULL)
{
(void) WriteBlobString(image,
" /Helvetica findfont pointsize scalefont setfont\n");
for (j=(ssize_t) MultilineCensus(value)-1; j >= 0; j--)
{
(void) WriteBlobString(image," /label 512 string def\n");
(void) WriteBlobString(image,
" currentfile label readline pop\n");
(void) FormatLocaleString(buffer,MaxTextExtent,
" 0 y %g add moveto label show pop\n",j*pointsize+12);
(void) WriteBlobString(image,buffer);
}
}
(void) WriteBlob(image,sizeof(PostscriptEpilog)-1,
(const unsigned char *) PostscriptEpilog);
if (LocaleCompare(image_info->magick,"PS2") == 0)
(void) WriteBlobString(image," showpage\n");
(void) WriteBlobString(image,"} bind def\n");
(void) WriteBlobString(image,"%%EndProlog\n");
}
(void) FormatLocaleString(buffer,MaxTextExtent,"%%%%Page: 1 %.20g\n",
(double) page++);
(void) WriteBlobString(image,buffer);
(void) FormatLocaleString(buffer,MaxTextExtent,
"%%%%PageBoundingBox: %.20g %.20g %.20g %.20g\n",(double) geometry.x,
(double) geometry.y,geometry.x+(double) geometry.width,geometry.y+(double)
(geometry.height+text_size));
(void) WriteBlobString(image,buffer);
if ((double) geometry.x < bounds.x1)
bounds.x1=(double) geometry.x;
if ((double) geometry.y < bounds.y1)
bounds.y1=(double) geometry.y;
if ((double) (geometry.x+geometry.width-1) > bounds.x2)
bounds.x2=(double) geometry.x+geometry.width-1;
if ((double) (geometry.y+(geometry.height+text_size)-1) > bounds.y2)
bounds.y2=(double) geometry.y+(geometry.height+text_size)-1;
value=GetImageProperty(image,"label");
if (value != (const char *) NULL)
(void) WriteBlobString(image,"%%PageResources: font Helvetica\n");
if (LocaleCompare(image_info->magick,"PS2") != 0)
(void) WriteBlobString(image,"userdict begin\n");
start=TellBlob(image);
(void) FormatLocaleString(buffer,MaxTextExtent,
"%%%%BeginData:%13ld %s Bytes\n",0L,
compression == NoCompression ? "ASCII" : "Binary");
(void) WriteBlobString(image,buffer);
stop=TellBlob(image);
(void) WriteBlobString(image,"DisplayImage\n");
/*
Output image data.
*/
(void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n%g %g\n%g\n",
(double) geometry.x,(double) geometry.y,scale.x,scale.y,pointsize);
(void) WriteBlobString(image,buffer);
labels=(char **) NULL;
value=GetImageProperty(image,"label");
if (value != (const char *) NULL)
labels=StringToList(value);
if (labels != (char **) NULL)
{
for (i=0; labels[i] != (char *) NULL; i++)
{
(void) FormatLocaleString(buffer,MaxTextExtent,"%s \n",
labels[i]);
(void) WriteBlobString(image,buffer);
labels[i]=DestroyString(labels[i]);
}
labels=(char **) RelinquishMagickMemory(labels);
}
number_pixels=(MagickSizeType) image->columns*image->rows;
if (number_pixels != (MagickSizeType) ((size_t) number_pixels))
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
if ((compression == FaxCompression) || (compression == Group4Compression) ||
((image_info->type != TrueColorType) &&
(SetImageGray(image,&image->exception) != MagickFalse)))
{
(void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n1\n%d\n",
(double) image->columns,(double) image->rows,(int)
(image->colorspace == CMYKColorspace));
(void) WriteBlobString(image,buffer);
(void) FormatLocaleString(buffer,MaxTextExtent,"%d\n",
(int) ((compression != FaxCompression) &&
(compression != Group4Compression)));
(void) WriteBlobString(image,buffer);
(void) WriteBlobString(image,"0\n");
(void) FormatLocaleString(buffer,MaxTextExtent,"%d\n",
(compression == FaxCompression) ||
(compression == Group4Compression) ? 1 : 8);
(void) WriteBlobString(image,buffer);
switch (compression)
{
case FaxCompression:
case Group4Compression:
{
if (LocaleCompare(CCITTParam,"0") == 0)
{
(void) HuffmanEncodeImage(image_info,image,image);
break;
}
(void) Huffman2DEncodeImage(image_info,image,image);
break;
}
case JPEGCompression:
{
status=InjectImageBlob(image_info,image,image,"jpeg",
&image->exception);
if (status == MagickFalse)
ThrowWriterException(CoderError,image->exception.reason);
break;
}
case RLECompression:
default:
{
MemoryInfo
*pixel_info;
unsigned char
*q;
/*
Allocate pixel array.
*/
length=(size_t) number_pixels;
pixel_info=AcquireVirtualMemory(length,sizeof(*pixels));
if (pixel_info == (MemoryInfo *) NULL)
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
/*
Dump runlength encoded pixels.
*/
q=pixels;
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,
&image->exception);
if (p == (const PixelPacket *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
*q++=ScaleQuantumToChar(ClampToQuantum(
GetPixelLuma(image,p)));
p++;
}
progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
image->rows);
if (progress == MagickFalse)
break;
}
length=(size_t) (q-pixels);
if (compression == LZWCompression)
status=LZWEncodeImage(image,length,pixels);
else
status=PackbitsEncodeImage(image,length,pixels);
pixel_info=RelinquishVirtualMemory(pixel_info);
if (status == MagickFalse)
{
(void) CloseBlob(image);
return(MagickFalse);
}
break;
}
case NoCompression:
{
/*
Dump uncompressed PseudoColor packets.
*/
Ascii85Initialize(image);
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,
&image->exception);
if (p == (const PixelPacket *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
Ascii85Encode(image,ScaleQuantumToChar(ClampToQuantum(
GetPixelLuma(image,p))));
p++;
}
progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType)
y,image->rows);
if (progress == MagickFalse)
break;
}
Ascii85Flush(image);
break;
}
}
}
else
if ((image->storage_class == DirectClass) || (image->colors > 256) ||
(compression == JPEGCompression) || (image->matte != MagickFalse))
{
(void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n0\n%d\n",
(double) image->columns,(double) image->rows,(int)
(image->colorspace == CMYKColorspace));
(void) WriteBlobString(image,buffer);
(void) FormatLocaleString(buffer,MaxTextExtent,"%d\n",
(int) (compression == NoCompression));
(void) WriteBlobString(image,buffer);
switch (compression)
{
case JPEGCompression:
{
status=InjectImageBlob(image_info,image,image,"jpeg",
&image->exception);
if (status == MagickFalse)
ThrowWriterException(CoderError,image->exception.reason);
break;
}
case RLECompression:
default:
{
MemoryInfo
*pixel_info;
unsigned char
*q;
/*
Allocate pixel array.
*/
length=(size_t) number_pixels;
pixel_info=AcquireVirtualMemory(length,4*sizeof(*pixels));
if (pixel_info == (MemoryInfo *) NULL)
ThrowWriterException(ResourceLimitError,
"MemoryAllocationFailed");
pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
/*
Dump runlength encoded pixels.
*/
q=pixels;
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,
&image->exception);
if (p == (const PixelPacket *) NULL)
break;
indexes=GetVirtualIndexQueue(image);
for (x=0; x < (ssize_t) image->columns; x++)
{
if ((image->matte != MagickFalse) &&
(GetPixelOpacity(p) == (Quantum) TransparentOpacity))
{
*q++=ScaleQuantumToChar(QuantumRange);
*q++=ScaleQuantumToChar(QuantumRange);
*q++=ScaleQuantumToChar(QuantumRange);
}
else
if (image->colorspace != CMYKColorspace)
{
*q++=ScaleQuantumToChar(GetPixelRed(p));
*q++=ScaleQuantumToChar(GetPixelGreen(p));
*q++=ScaleQuantumToChar(GetPixelBlue(p));
}
else
{
*q++=ScaleQuantumToChar(GetPixelRed(p));
*q++=ScaleQuantumToChar(GetPixelGreen(p));
*q++=ScaleQuantumToChar(GetPixelBlue(p));
*q++=ScaleQuantumToChar(GetPixelIndex(
indexes+x));
}
p++;
}
progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType)
y,image->rows);
if (progress == MagickFalse)
break;
}
length=(size_t) (q-pixels);
if (compression == LZWCompression)
status=LZWEncodeImage(image,length,pixels);
else
status=PackbitsEncodeImage(image,length,pixels);
if (status == MagickFalse)
{
(void) CloseBlob(image);
return(MagickFalse);
}
pixel_info=RelinquishVirtualMemory(pixel_info);
break;
}
case NoCompression:
{
/*
Dump uncompressed DirectColor packets.
*/
Ascii85Initialize(image);
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,
&image->exception);
if (p == (const PixelPacket *) NULL)
break;
indexes=GetVirtualIndexQueue(image);
for (x=0; x < (ssize_t) image->columns; x++)
{
if ((image->matte != MagickFalse) &&
(GetPixelOpacity(p) == (Quantum) TransparentOpacity))
{
Ascii85Encode(image,ScaleQuantumToChar((Quantum)
QuantumRange));
Ascii85Encode(image,ScaleQuantumToChar((Quantum)
QuantumRange));
Ascii85Encode(image,ScaleQuantumToChar((Quantum)
QuantumRange));
}
else
if (image->colorspace != CMYKColorspace)
{
Ascii85Encode(image,ScaleQuantumToChar(
GetPixelRed(p)));
Ascii85Encode(image,ScaleQuantumToChar(
GetPixelGreen(p)));
Ascii85Encode(image,ScaleQuantumToChar(
GetPixelBlue(p)));
}
else
{
Ascii85Encode(image,ScaleQuantumToChar(
GetPixelRed(p)));
Ascii85Encode(image,ScaleQuantumToChar(
GetPixelGreen(p)));
Ascii85Encode(image,ScaleQuantumToChar(
GetPixelBlue(p)));
Ascii85Encode(image,ScaleQuantumToChar(
GetPixelIndex(indexes+x)));
}
p++;
}
progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType)
y,image->rows);
if (progress == MagickFalse)
break;
}
Ascii85Flush(image);
break;
}
}
}
else
{
/*
Dump number of colors and colormap.
*/
(void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n1\n%d\n",
(double) image->columns,(double) image->rows,(int)
(image->colorspace == CMYKColorspace));
(void) WriteBlobString(image,buffer);
(void) FormatLocaleString(buffer,MaxTextExtent,"%d\n",
(int) (compression == NoCompression));
(void) WriteBlobString(image,buffer);
(void) FormatLocaleString(buffer,MaxTextExtent,"%.20g\n",(double)
image->colors);
(void) WriteBlobString(image,buffer);
for (i=0; i < (ssize_t) image->colors; i++)
{
(void) FormatLocaleString(buffer,MaxTextExtent,"%02X%02X%02X\n",
ScaleQuantumToChar(image->colormap[i].red),
ScaleQuantumToChar(image->colormap[i].green),
ScaleQuantumToChar(image->colormap[i].blue));
(void) WriteBlobString(image,buffer);
}
switch (compression)
{
case RLECompression:
default:
{
MemoryInfo
*pixel_info;
unsigned char
*q;
/*
Allocate pixel array.
*/
length=(size_t) number_pixels;
pixel_info=AcquireVirtualMemory(length,sizeof(*pixels));
if (pixel_info == (MemoryInfo *) NULL)
ThrowWriterException(ResourceLimitError,
"MemoryAllocationFailed");
pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
/*
Dump runlength encoded pixels.
*/
q=pixels;
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,
&image->exception);
if (p == (const PixelPacket *) NULL)
break;
indexes=GetVirtualIndexQueue(image);
for (x=0; x < (ssize_t) image->columns; x++)
*q++=(unsigned char) ((size_t) GetPixelIndex(indexes+x));
progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType)
y,image->rows);
if (progress == MagickFalse)
break;
}
length=(size_t) (q-pixels);
if (compression == LZWCompression)
status=LZWEncodeImage(image,length,pixels);
else
status=PackbitsEncodeImage(image,length,pixels);
pixel_info=RelinquishVirtualMemory(pixel_info);
if (status == MagickFalse)
{
(void) CloseBlob(image);
return(MagickFalse);
}
break;
}
case NoCompression:
{
/*
Dump uncompressed PseudoColor packets.
*/
Ascii85Initialize(image);
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,
&image->exception);
if (p == (const PixelPacket *) NULL)
break;
indexes=GetVirtualIndexQueue(image);
for (x=0; x < (ssize_t) image->columns; x++)
Ascii85Encode(image,(unsigned char) GetPixelIndex(
indexes+x));
progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType)
y,image->rows);
if (progress == MagickFalse)
break;
}
Ascii85Flush(image);
break;
}
}
}
(void) WriteBlobByte(image,'\n');
length=(size_t) (TellBlob(image)-stop);
stop=TellBlob(image);
offset=SeekBlob(image,start,SEEK_SET);
if (offset < 0)
ThrowWriterException(CorruptImageError,"ImproperImageHeader");
(void) FormatLocaleString(buffer,MaxTextExtent,
"%%%%BeginData:%13ld %s Bytes\n",(long) length,
compression == NoCompression ? "ASCII" : "Binary");
(void) WriteBlobString(image,buffer);
(void) SeekBlob(image,stop,SEEK_SET);
(void) WriteBlobString(image,"%%EndData\n");
if (LocaleCompare(image_info->magick,"PS2") != 0)
(void) WriteBlobString(image,"end\n");
(void) WriteBlobString(image,"%%PageTrailer\n");
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) WriteBlobString(image,"%%Trailer\n");
if (page > 1)
{
(void) FormatLocaleString(buffer,MaxTextExtent,
"%%%%BoundingBox: %.20g %.20g %.20g %.20g\n",ceil(bounds.x1-0.5),
ceil(bounds.y1-0.5),floor(bounds.x2+0.5),floor(bounds.y2+0.5));
(void) WriteBlobString(image,buffer);
(void) FormatLocaleString(buffer,MaxTextExtent,
"%%%%HiResBoundingBox: %g %g %g %g\n",bounds.x1,bounds.y1,
bounds.x2,bounds.y2);
(void) WriteBlobString(image,buffer);
}
(void) WriteBlobString(image,"%%EOF\n");
(void) CloseBlob(image);
return(MagickTrue);
}