forked from openkylin/imagemagick
1170 lines
37 KiB
C
1170 lines
37 KiB
C
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% X X PPPP M M %
|
||
% X X P P MM MM %
|
||
% X PPPP M M M %
|
||
% X X P M M %
|
||
% X X P M M %
|
||
% %
|
||
% %
|
||
% Read/Write X Windows system Pixmap 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/colormap.h"
|
||
#include "magick/colorspace.h"
|
||
#include "magick/colorspace-private.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/monitor.h"
|
||
#include "magick/monitor-private.h"
|
||
#include "magick/pixel-accessor.h"
|
||
#include "magick/pixel-private.h"
|
||
#include "magick/quantize.h"
|
||
#include "magick/quantum-private.h"
|
||
#include "magick/resize.h"
|
||
#include "magick/resource_.h"
|
||
#include "magick/splay-tree.h"
|
||
#include "magick/static.h"
|
||
#include "magick/string_.h"
|
||
#include "magick/module.h"
|
||
#include "magick/threshold.h"
|
||
#include "magick/utility.h"
|
||
|
||
/*
|
||
Global declarations.
|
||
*/
|
||
static SplayTreeInfo
|
||
*xpm_symbolic = (SplayTreeInfo *) NULL;
|
||
|
||
/*
|
||
Forward declarations.
|
||
*/
|
||
static MagickBooleanType
|
||
WritePICONImage(const ImageInfo *,Image *),
|
||
WriteXPMImage(const ImageInfo *,Image *);
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% I s X P M %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% IsXPM() returns MagickTrue if the image format type, identified by the
|
||
% magick string, is XPM.
|
||
%
|
||
% The format of the IsXPM method is:
|
||
%
|
||
% MagickBooleanType IsXPM(const unsigned char *magick,const size_t length)
|
||
%
|
||
% A description of each parameter follows:
|
||
%
|
||
% o magick: compare image format pattern against these bytes. or
|
||
% blob.
|
||
%
|
||
% o length: Specifies the length of the magick string.
|
||
%
|
||
*/
|
||
static MagickBooleanType IsXPM(const unsigned char *magick,const size_t length)
|
||
{
|
||
if (length < 9)
|
||
return(MagickFalse);
|
||
if (LocaleNCompare((char *) magick+1,"* XPM *",7) == 0)
|
||
return(MagickTrue);
|
||
return(MagickFalse);
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% R e a d X P M I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% ReadXPMImage() reads an X11 pixmap 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 ReadXPMImage method is:
|
||
%
|
||
% Image *ReadXPMImage(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 int CompareXPMColor(const void *target,const void *source)
|
||
{
|
||
const char
|
||
*p,
|
||
*q;
|
||
|
||
p=(const char *) target;
|
||
q=(const char *) source;
|
||
return(strcmp(p,q));
|
||
}
|
||
|
||
static ssize_t CopyXPMColor(char *destination,const char *source,size_t length)
|
||
{
|
||
const char
|
||
*p;
|
||
|
||
p=source;
|
||
while (length-- && (*p != '\0'))
|
||
*destination++=(*p++);
|
||
if (length != 0)
|
||
*destination='\0';
|
||
return((ssize_t) (p-source));
|
||
}
|
||
|
||
static char *NextXPMLine(char *p)
|
||
{
|
||
assert(p != (char *) NULL);
|
||
p=strchr(p,'\n');
|
||
if (p != (char *) NULL)
|
||
p++;
|
||
return(p);
|
||
}
|
||
|
||
static char *ParseXPMColor(char *,MagickBooleanType)
|
||
magick_attribute((__pure__));
|
||
|
||
static char *ParseXPMColor(char *color,MagickBooleanType search_start)
|
||
{
|
||
#define NumberTargets 6
|
||
|
||
char
|
||
*p,
|
||
*r;
|
||
|
||
const char
|
||
*q;
|
||
|
||
ssize_t
|
||
i;
|
||
|
||
static const char
|
||
*const targets[NumberTargets] = { "c ", "g ", "g4 ", "m ", "b ", "s " };
|
||
|
||
if (*color == '\0')
|
||
return((char *) NULL);
|
||
if (search_start != MagickFalse)
|
||
{
|
||
for (i=0; i < NumberTargets; i++)
|
||
{
|
||
p=color;
|
||
for (q=targets[i]; *p != '\0'; p++)
|
||
{
|
||
if (*p == '\n')
|
||
break;
|
||
if (*p != *q)
|
||
continue;
|
||
if (isspace((int) ((unsigned char) (*(p-1)))) == 0)
|
||
continue;
|
||
r=p;
|
||
for ( ; ; )
|
||
{
|
||
if (*q == '\0')
|
||
return(p);
|
||
if (*r++ != *q++)
|
||
break;
|
||
}
|
||
q=targets[i];
|
||
}
|
||
}
|
||
return((char *) NULL);
|
||
}
|
||
for (p=color+1; *p != '\0'; p++)
|
||
{
|
||
if (*p == '\n')
|
||
break;
|
||
if (isspace((int) ((unsigned char) (*(p-1)))) == 0)
|
||
continue;
|
||
if (isspace((int) ((unsigned char) (*p))) != 0)
|
||
continue;
|
||
for (i=0; i < NumberTargets; i++)
|
||
{
|
||
if ((*p == *targets[i]) && (*(p+1) == *(targets[i]+1)))
|
||
return(p);
|
||
}
|
||
}
|
||
return(p);
|
||
}
|
||
|
||
static Image *ReadXPMImage(const ImageInfo *image_info,ExceptionInfo *exception)
|
||
{
|
||
char
|
||
*grey,
|
||
key[MaxTextExtent],
|
||
target[MaxTextExtent],
|
||
*xpm_buffer;
|
||
|
||
Image
|
||
*image;
|
||
|
||
MagickBooleanType
|
||
active,
|
||
status;
|
||
|
||
char
|
||
*next,
|
||
*p,
|
||
*q;
|
||
|
||
IndexPacket
|
||
*indexes;
|
||
|
||
PixelPacket
|
||
*r;
|
||
|
||
ssize_t
|
||
x;
|
||
|
||
size_t
|
||
length;
|
||
|
||
SplayTreeInfo
|
||
*xpm_colors;
|
||
|
||
ssize_t
|
||
count,
|
||
j,
|
||
y;
|
||
|
||
unsigned long
|
||
colors,
|
||
columns,
|
||
rows,
|
||
width;
|
||
|
||
/*
|
||
Open image file.
|
||
*/
|
||
assert(image_info != (const ImageInfo *) NULL);
|
||
assert(image_info->signature == MagickCoreSignature);
|
||
if (image_info->debug != MagickFalse)
|
||
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
|
||
image_info->filename);
|
||
assert(exception != (ExceptionInfo *) NULL);
|
||
assert(exception->signature == MagickCoreSignature);
|
||
image=AcquireImage(image_info);
|
||
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
||
if (status == MagickFalse)
|
||
{
|
||
image=DestroyImageList(image);
|
||
return((Image *) NULL);
|
||
}
|
||
/*
|
||
Read XPM file.
|
||
*/
|
||
length=MaxTextExtent;
|
||
xpm_buffer=(char *) AcquireQuantumMemory((size_t) length,sizeof(*xpm_buffer));
|
||
if (xpm_buffer == (char *) NULL)
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
*xpm_buffer='\0';
|
||
p=xpm_buffer;
|
||
while (ReadBlobString(image,p) != (char *) NULL)
|
||
{
|
||
if ((*p == '#') && ((p == xpm_buffer) || (*(p-1) == '\n')))
|
||
continue;
|
||
if ((*p == '}') && (*(p+1) == ';'))
|
||
break;
|
||
p+=strlen(p);
|
||
if ((size_t) (p-xpm_buffer+MaxTextExtent) < length)
|
||
continue;
|
||
length<<=1;
|
||
xpm_buffer=(char *) ResizeQuantumMemory(xpm_buffer,length+MaxTextExtent,
|
||
sizeof(*xpm_buffer));
|
||
if (xpm_buffer == (char *) NULL)
|
||
break;
|
||
p=xpm_buffer+strlen(xpm_buffer);
|
||
}
|
||
if (xpm_buffer == (char *) NULL)
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
/*
|
||
Remove comments.
|
||
*/
|
||
count=0;
|
||
width=0;
|
||
for (p=xpm_buffer; *p != '\0'; p++)
|
||
{
|
||
if (*p != '"')
|
||
continue;
|
||
count=(ssize_t) sscanf(p+1,"%lu %lu %lu %lu",&columns,&rows,&colors,&width);
|
||
image->columns=columns;
|
||
image->rows=rows;
|
||
image->colors=colors;
|
||
if (count == 4)
|
||
break;
|
||
}
|
||
if ((count != 4) || (width == 0) || (width > 3) ||
|
||
(image->columns == 0) || (image->rows == 0) ||
|
||
(image->colors == 0) || (image->colors > MaxColormapSize))
|
||
{
|
||
xpm_buffer=DestroyString(xpm_buffer);
|
||
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
||
}
|
||
/*
|
||
Remove unquoted characters.
|
||
*/
|
||
active=MagickFalse;
|
||
for (q=xpm_buffer; *p != '\0'; )
|
||
{
|
||
if (*p++ == '"')
|
||
{
|
||
if (active != MagickFalse)
|
||
*q++='\n';
|
||
active=active != MagickFalse ? MagickFalse : MagickTrue;
|
||
}
|
||
if (active != MagickFalse)
|
||
*q++=(*p);
|
||
}
|
||
*q='\0';
|
||
if (active != MagickFalse)
|
||
{
|
||
xpm_buffer=DestroyString(xpm_buffer);
|
||
ThrowReaderException(CorruptImageError,"UnexpectedEndOfFile");
|
||
}
|
||
/*
|
||
Initialize image structure.
|
||
*/
|
||
xpm_colors=NewSplayTree(CompareXPMColor,RelinquishMagickMemory,
|
||
(void *(*)(void *)) NULL);
|
||
if (AcquireImageColormap(image,image->colors) == MagickFalse)
|
||
{
|
||
xpm_colors=DestroySplayTree(xpm_colors);
|
||
xpm_buffer=DestroyString(xpm_buffer);
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
}
|
||
/*
|
||
Read image colormap.
|
||
*/
|
||
image->depth=1;
|
||
next=NextXPMLine(xpm_buffer);
|
||
for (j=0; (j < (ssize_t) image->colors) && (next != (char *) NULL); j++)
|
||
{
|
||
char
|
||
symbolic[MagickPathExtent];
|
||
|
||
MagickPixelPacket
|
||
pixel;
|
||
|
||
p=next;
|
||
next=NextXPMLine(p);
|
||
if (next == (char *) NULL)
|
||
break;
|
||
length=MagickMin((size_t) width,MagickPathExtent-1);
|
||
if (CopyXPMColor(key,p,length) != (ssize_t) length)
|
||
break;
|
||
status=AddValueToSplayTree(xpm_colors,ConstantString(key),(void *) j);
|
||
/*
|
||
Parse color.
|
||
*/
|
||
(void) memset(target,0,sizeof(target));
|
||
(void) CopyMagickString(target,"gray",MaxTextExtent);
|
||
q=(char *) NULL;
|
||
if (strlen(p) > width)
|
||
q=ParseXPMColor(p+width,MagickTrue);
|
||
(void) memset(symbolic,0,sizeof(symbolic));
|
||
*symbolic='\0';
|
||
if (q != (char *) NULL)
|
||
{
|
||
while ((isspace((int) ((unsigned char) *q)) == 0) && (*q != '\0'))
|
||
q++;
|
||
if ((next-q) < 0)
|
||
break;
|
||
if (next != (char *) NULL)
|
||
(void) CopyXPMColor(target,q,MagickMin((size_t) (next-q),
|
||
MaxTextExtent-1));
|
||
else
|
||
(void) CopyMagickString(target,q,MaxTextExtent);
|
||
q=ParseXPMColor(target,MagickFalse);
|
||
(void) CopyXPMColor(symbolic,q,MagickMin((size_t) (next-q),
|
||
MagickPathExtent-1));
|
||
if (q != (char *) NULL)
|
||
*q='\0';
|
||
}
|
||
StripString(target);
|
||
if (*symbolic != '\0')
|
||
(void) AddValueToSplayTree(xpm_symbolic,ConstantString(target),
|
||
ConstantString(symbolic));
|
||
grey=strstr(target,"grey");
|
||
if (grey != (char *) NULL)
|
||
grey[2]='a';
|
||
if (LocaleCompare(target,"none") == 0)
|
||
{
|
||
image->storage_class=DirectClass;
|
||
image->matte=MagickTrue;
|
||
}
|
||
status=QueryColorCompliance(target,XPMCompliance,&image->colormap[j],
|
||
exception);
|
||
if (status == MagickFalse)
|
||
break;
|
||
(void) QueryMagickColorCompliance(target,XPMCompliance,&pixel,exception);
|
||
if (image->depth < pixel.depth)
|
||
image->depth=pixel.depth;
|
||
}
|
||
if (j < (ssize_t) image->colors)
|
||
{
|
||
xpm_colors=DestroySplayTree(xpm_colors);
|
||
xpm_buffer=DestroyString(xpm_buffer);
|
||
ThrowReaderException(CorruptImageError,"CorruptImage");
|
||
}
|
||
j=0;
|
||
if (image_info->ping == MagickFalse)
|
||
{
|
||
/*
|
||
Read image pixels.
|
||
*/
|
||
status=SetImageExtent(image,image->columns,image->rows);
|
||
if (status == MagickFalse)
|
||
{
|
||
InheritException(exception,&image->exception);
|
||
xpm_colors=DestroySplayTree(xpm_colors);
|
||
xpm_buffer=DestroyString(xpm_buffer);
|
||
return(DestroyImageList(image));
|
||
}
|
||
for (y=0; y < (ssize_t) image->rows; y++)
|
||
{
|
||
p=NextXPMLine(p);
|
||
if (p == (char *) NULL)
|
||
break;
|
||
r=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
||
if (r == (PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetAuthenticIndexQueue(image);
|
||
for (x=0; x < (ssize_t) image->columns; x++)
|
||
{
|
||
ssize_t
|
||
count;
|
||
|
||
count=CopyXPMColor(key,p,MagickMin(width,MaxTextExtent-1));
|
||
if (count != (ssize_t) width)
|
||
break;
|
||
j=(ssize_t) GetValueFromSplayTree(xpm_colors,key);
|
||
if (image->storage_class == PseudoClass)
|
||
SetPixelIndex(indexes+x,j);
|
||
*r=image->colormap[j];
|
||
p+=count;
|
||
r++;
|
||
}
|
||
if (x < (ssize_t) image->columns)
|
||
break;
|
||
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
||
break;
|
||
}
|
||
if (y < (ssize_t) image->rows)
|
||
{
|
||
xpm_colors=DestroySplayTree(xpm_colors);
|
||
xpm_buffer=DestroyString(xpm_buffer);
|
||
ThrowReaderException(CorruptImageError,"NotEnoughPixelData");
|
||
}
|
||
}
|
||
/*
|
||
Relinquish resources.
|
||
*/
|
||
xpm_colors=DestroySplayTree(xpm_colors);
|
||
xpm_buffer=DestroyString(xpm_buffer);
|
||
(void) CloseBlob(image);
|
||
return(GetFirstImageInList(image));
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% R e g i s t e r X P M I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% RegisterXPMImage() adds attributes for the XPM 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 RegisterXPMImage method is:
|
||
%
|
||
% size_t RegisterXPMImage(void)
|
||
%
|
||
*/
|
||
ModuleExport size_t RegisterXPMImage(void)
|
||
{
|
||
MagickInfo
|
||
*entry;
|
||
|
||
if (xpm_symbolic == (SplayTreeInfo *) NULL)
|
||
xpm_symbolic=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
|
||
RelinquishMagickMemory);
|
||
entry=SetMagickInfo("PICON");
|
||
entry->decoder=(DecodeImageHandler *) ReadXPMImage;
|
||
entry->encoder=(EncodeImageHandler *) WritePICONImage;
|
||
entry->adjoin=MagickFalse;
|
||
entry->description=ConstantString("Personal Icon");
|
||
entry->magick_module=ConstantString("XPM");
|
||
(void) RegisterMagickInfo(entry);
|
||
entry=SetMagickInfo("PM");
|
||
entry->decoder=(DecodeImageHandler *) ReadXPMImage;
|
||
entry->encoder=(EncodeImageHandler *) WriteXPMImage;
|
||
entry->adjoin=MagickFalse;
|
||
entry->stealth=MagickTrue;
|
||
entry->description=ConstantString("X Windows system pixmap (color)");
|
||
entry->magick_module=ConstantString("XPM");
|
||
(void) RegisterMagickInfo(entry);
|
||
entry=SetMagickInfo("XPM");
|
||
entry->decoder=(DecodeImageHandler *) ReadXPMImage;
|
||
entry->encoder=(EncodeImageHandler *) WriteXPMImage;
|
||
entry->magick=(IsImageFormatHandler *) IsXPM;
|
||
entry->adjoin=MagickFalse;
|
||
entry->description=ConstantString("X Windows system pixmap (color)");
|
||
entry->magick_module=ConstantString("XPM");
|
||
(void) RegisterMagickInfo(entry);
|
||
return(MagickImageCoderSignature);
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% U n r e g i s t e r X P M I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% UnregisterXPMImage() removes format registrations made by the
|
||
% XPM module from the list of supported formats.
|
||
%
|
||
% The format of the UnregisterXPMImage method is:
|
||
%
|
||
% UnregisterXPMImage(void)
|
||
%
|
||
*/
|
||
ModuleExport void UnregisterXPMImage(void)
|
||
{
|
||
(void) UnregisterMagickInfo("PICON");
|
||
(void) UnregisterMagickInfo("PM");
|
||
(void) UnregisterMagickInfo("XPM");
|
||
if (xpm_symbolic != (SplayTreeInfo *) NULL)
|
||
xpm_symbolic=DestroySplayTree(xpm_symbolic);
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% W r i t e P I C O N I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% WritePICONImage() writes an image to a file in the Personal Icon format.
|
||
%
|
||
% The format of the WritePICONImage method is:
|
||
%
|
||
% MagickBooleanType WritePICONImage(const ImageInfo *image_info,
|
||
% Image *image)
|
||
%
|
||
% A description of each parameter follows.
|
||
%
|
||
% o image_info: the image info.
|
||
%
|
||
% o image: The image.
|
||
%
|
||
*/
|
||
static MagickBooleanType WritePICONImage(const ImageInfo *image_info,
|
||
Image *image)
|
||
{
|
||
#define ColormapExtent 155
|
||
#define GraymapExtent 95
|
||
#define PiconGeometry "48x48>"
|
||
|
||
static unsigned char
|
||
Colormap[]=
|
||
{
|
||
0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x06, 0x00, 0x05, 0x00, 0xf4, 0x05,
|
||
0x00, 0x00, 0x00, 0x00, 0x2f, 0x4f, 0x4f, 0x70, 0x80, 0x90, 0x7e, 0x7e,
|
||
0x7e, 0xdc, 0xdc, 0xdc, 0xff, 0xff, 0xff, 0x00, 0x00, 0x80, 0x00, 0x00,
|
||
0xff, 0x1e, 0x90, 0xff, 0x87, 0xce, 0xeb, 0xe6, 0xe6, 0xfa, 0x00, 0xff,
|
||
0xff, 0x80, 0x00, 0x80, 0xb2, 0x22, 0x22, 0x2e, 0x8b, 0x57, 0x32, 0xcd,
|
||
0x32, 0x00, 0xff, 0x00, 0x98, 0xfb, 0x98, 0xff, 0x00, 0xff, 0xff, 0x00,
|
||
0x00, 0xff, 0x63, 0x47, 0xff, 0xa5, 0x00, 0xff, 0xd7, 0x00, 0xff, 0xff,
|
||
0x00, 0xee, 0x82, 0xee, 0xa0, 0x52, 0x2d, 0xcd, 0x85, 0x3f, 0xd2, 0xb4,
|
||
0x8c, 0xf5, 0xde, 0xb3, 0xff, 0xfa, 0xcd, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||
0x00, 0x21, 0xf9, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x00,
|
||
0x00, 0x00, 0x06, 0x00, 0x05, 0x00, 0x00, 0x05, 0x18, 0x20, 0x10, 0x08,
|
||
0x03, 0x51, 0x18, 0x07, 0x92, 0x28, 0x0b, 0xd3, 0x38, 0x0f, 0x14, 0x49,
|
||
0x13, 0x55, 0x59, 0x17, 0x96, 0x69, 0x1b, 0xd7, 0x85, 0x00, 0x3b,
|
||
},
|
||
Graymap[]=
|
||
{
|
||
0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x04, 0x00, 0x04, 0x00, 0xf3, 0x0f,
|
||
0x00, 0x00, 0x00, 0x00, 0x12, 0x12, 0x12, 0x21, 0x21, 0x21, 0x33, 0x33,
|
||
0x33, 0x45, 0x45, 0x45, 0x54, 0x54, 0x54, 0x66, 0x66, 0x66, 0x78, 0x78,
|
||
0x78, 0x87, 0x87, 0x87, 0x99, 0x99, 0x99, 0xab, 0xab, 0xab, 0xba, 0xba,
|
||
0xba, 0xcc, 0xcc, 0xcc, 0xde, 0xde, 0xde, 0xed, 0xed, 0xed, 0xff, 0xff,
|
||
0xff, 0x21, 0xf9, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x00,
|
||
0x00, 0x00, 0x04, 0x00, 0x04, 0x00, 0x00, 0x04, 0x0c, 0x10, 0x04, 0x31,
|
||
0x48, 0x31, 0x07, 0x25, 0xb5, 0x58, 0x73, 0x4f, 0x04, 0x00, 0x3b,
|
||
};
|
||
|
||
#define MaxCixels 92
|
||
|
||
static const char
|
||
Cixel[MaxCixels+1] = " .XoO+@#$%&*=-;:>,<1234567890qwertyuipasdfghjk"
|
||
"lzxcvbnmMNBVCZASDFGHJKLPIUYTREWQ!~^/()_`'][{}|";
|
||
|
||
char
|
||
buffer[MaxTextExtent],
|
||
basename[MaxTextExtent],
|
||
name[MaxTextExtent],
|
||
symbol[MaxTextExtent];
|
||
|
||
ExceptionInfo
|
||
*exception;
|
||
|
||
Image
|
||
*affinity_image,
|
||
*picon;
|
||
|
||
ImageInfo
|
||
*blob_info;
|
||
|
||
MagickBooleanType
|
||
status,
|
||
transparent;
|
||
|
||
MagickPixelPacket
|
||
pixel;
|
||
|
||
QuantizeInfo
|
||
*quantize_info;
|
||
|
||
RectangleInfo
|
||
geometry;
|
||
|
||
const IndexPacket
|
||
*indexes;
|
||
|
||
const PixelPacket
|
||
*p;
|
||
|
||
ssize_t
|
||
i,
|
||
x;
|
||
|
||
PixelPacket
|
||
*q;
|
||
|
||
size_t
|
||
characters_per_pixel,
|
||
colors;
|
||
|
||
ssize_t
|
||
j,
|
||
k,
|
||
y;
|
||
|
||
/*
|
||
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);
|
||
(void) TransformImageColorspace(image,sRGBColorspace);
|
||
SetGeometry(image,&geometry);
|
||
(void) ParseMetaGeometry(PiconGeometry,&geometry.x,&geometry.y,
|
||
&geometry.width,&geometry.height);
|
||
picon=ResizeImage(image,geometry.width,geometry.height,TriangleFilter,1.0,
|
||
&image->exception);
|
||
blob_info=CloneImageInfo(image_info);
|
||
(void) AcquireUniqueFilename(blob_info->filename);
|
||
if ((image_info->type != TrueColorType) &&
|
||
(SetImageGray(image,&image->exception) != MagickFalse))
|
||
affinity_image=BlobToImage(blob_info,Graymap,GraymapExtent,
|
||
&image->exception);
|
||
else
|
||
affinity_image=BlobToImage(blob_info,Colormap,ColormapExtent,
|
||
&image->exception);
|
||
(void) RelinquishUniqueFileResource(blob_info->filename);
|
||
blob_info=DestroyImageInfo(blob_info);
|
||
if ((picon == (Image *) NULL) || (affinity_image == (Image *) NULL))
|
||
{
|
||
if (affinity_image != (Image *) NULL)
|
||
affinity_image=DestroyImage(affinity_image);
|
||
if (picon != (Image *) NULL)
|
||
picon=DestroyImage(picon);
|
||
return(MagickFalse);
|
||
}
|
||
quantize_info=AcquireQuantizeInfo(image_info);
|
||
status=RemapImage(quantize_info,picon,affinity_image);
|
||
quantize_info=DestroyQuantizeInfo(quantize_info);
|
||
affinity_image=DestroyImage(affinity_image);
|
||
transparent=MagickFalse;
|
||
exception=(&image->exception);
|
||
if (picon->storage_class == PseudoClass)
|
||
{
|
||
(void) CompressImageColormap(picon);
|
||
if (picon->matte != MagickFalse)
|
||
transparent=MagickTrue;
|
||
}
|
||
else
|
||
{
|
||
/*
|
||
Convert DirectClass to PseudoClass picon.
|
||
*/
|
||
if (picon->matte != MagickFalse)
|
||
{
|
||
/*
|
||
Map all the transparent pixels.
|
||
*/
|
||
for (y=0; y < (ssize_t) picon->rows; y++)
|
||
{
|
||
q=GetAuthenticPixels(picon,0,y,picon->columns,1,exception);
|
||
if (q == (PixelPacket *) NULL)
|
||
break;
|
||
for (x=0; x < (ssize_t) picon->columns; x++)
|
||
{
|
||
if (q->opacity == (Quantum) TransparentOpacity)
|
||
transparent=MagickTrue;
|
||
else
|
||
SetPixelOpacity(q,OpaqueOpacity);
|
||
q++;
|
||
}
|
||
if (SyncAuthenticPixels(picon,exception) == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
(void) SetImageType(picon,PaletteType);
|
||
}
|
||
colors=picon->colors;
|
||
if (transparent != MagickFalse)
|
||
{
|
||
IndexPacket
|
||
*indexes;
|
||
|
||
colors++;
|
||
picon->colormap=(PixelPacket *) ResizeQuantumMemory((void **)
|
||
picon->colormap,(size_t) colors,sizeof(*picon->colormap));
|
||
if (picon->colormap == (PixelPacket *) NULL)
|
||
ThrowWriterException(ResourceLimitError,"MemoryAllocationError");
|
||
picon->colormap[colors-1].red=0;
|
||
picon->colormap[colors-1].green=0;
|
||
picon->colormap[colors-1].blue=0;
|
||
picon->colormap[colors-1].opacity=TransparentOpacity;
|
||
for (y=0; y < (ssize_t) picon->rows; y++)
|
||
{
|
||
q=GetAuthenticPixels(picon,0,y,picon->columns,1,exception);
|
||
if (q == (PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetAuthenticIndexQueue(picon);
|
||
for (x=0; x < (ssize_t) picon->columns; x++)
|
||
{
|
||
if (q->opacity == (Quantum) TransparentOpacity)
|
||
SetPixelIndex(indexes+x,picon->colors);
|
||
q++;
|
||
}
|
||
if (SyncAuthenticPixels(picon,exception) == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
/*
|
||
Compute the character per pixel.
|
||
*/
|
||
characters_per_pixel=1;
|
||
for (k=MaxCixels; (ssize_t) colors > k; k*=MaxCixels)
|
||
characters_per_pixel++;
|
||
/*
|
||
XPM header.
|
||
*/
|
||
(void) WriteBlobString(image,"/* XPM */\n");
|
||
GetPathComponent(picon->filename,BasePath,basename);
|
||
(void) FormatLocaleString(buffer,MaxTextExtent,
|
||
"static char *%.1024s[] = {\n",basename);
|
||
(void) WriteBlobString(image,buffer);
|
||
(void) WriteBlobString(image,"/* columns rows colors chars-per-pixel */\n");
|
||
(void) FormatLocaleString(buffer,MaxTextExtent,
|
||
"\"%.20g %.20g %.20g %.20g\",\n",(double) picon->columns,(double)
|
||
picon->rows,(double) colors,(double) characters_per_pixel);
|
||
(void) WriteBlobString(image,buffer);
|
||
GetMagickPixelPacket(image,&pixel);
|
||
for (i=0; i < (ssize_t) colors; i++)
|
||
{
|
||
const char
|
||
*symbolic;
|
||
|
||
/*
|
||
Define XPM color.
|
||
*/
|
||
SetMagickPixelPacket(image,picon->colormap+i,(IndexPacket *) NULL,&pixel);
|
||
pixel.colorspace=sRGBColorspace;
|
||
pixel.depth=8;
|
||
pixel.opacity=(MagickRealType) OpaqueOpacity;
|
||
(void) QueryMagickColorname(image,&pixel,XPMCompliance,name,
|
||
&image->exception);
|
||
if (transparent != MagickFalse)
|
||
{
|
||
if (i == (ssize_t) (colors-1))
|
||
(void) CopyMagickString(name,"grey75",MaxTextExtent);
|
||
}
|
||
/*
|
||
Write XPM color.
|
||
*/
|
||
k=i % MaxCixels;
|
||
symbol[0]=Cixel[k];
|
||
for (j=1; j < (ssize_t) characters_per_pixel; j++)
|
||
{
|
||
k=((i-k)/MaxCixels) % MaxCixels;
|
||
symbol[j]=Cixel[k];
|
||
}
|
||
symbol[j]='\0';
|
||
symbolic=(const char *) GetValueFromSplayTree(xpm_symbolic,name);
|
||
if (symbolic == (const char *) NULL)
|
||
(void) FormatLocaleString(buffer,MaxTextExtent,"\"%.1024s c %.1024s\",\n",
|
||
symbol,name);
|
||
else
|
||
(void) FormatLocaleString(buffer,MaxTextExtent,
|
||
"\"%.1024s c %.1024s %.1024s\",\n",symbol,name,symbolic);
|
||
(void) WriteBlobString(image,buffer);
|
||
}
|
||
/*
|
||
Define XPM pixels.
|
||
*/
|
||
(void) WriteBlobString(image,"/* pixels */\n");
|
||
for (y=0; y < (ssize_t) picon->rows; y++)
|
||
{
|
||
p=GetVirtualPixels(picon,0,y,picon->columns,1,&picon->exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetVirtualIndexQueue(picon);
|
||
(void) WriteBlobString(image,"\"");
|
||
for (x=0; x < (ssize_t) picon->columns; x++)
|
||
{
|
||
k=((ssize_t) GetPixelIndex(indexes+x) % MaxCixels);
|
||
symbol[0]=Cixel[k];
|
||
for (j=1; j < (ssize_t) characters_per_pixel; j++)
|
||
{
|
||
k=(((int) GetPixelIndex(indexes+x)-k)/MaxCixels) % MaxCixels;
|
||
symbol[j]=Cixel[k];
|
||
}
|
||
symbol[j]='\0';
|
||
(void) CopyMagickString(buffer,symbol,MaxTextExtent);
|
||
(void) WriteBlobString(image,buffer);
|
||
}
|
||
(void) FormatLocaleString(buffer,MaxTextExtent,"\"%.1024s\n",
|
||
y == (ssize_t) (picon->rows-1) ? "" : ",");
|
||
(void) WriteBlobString(image,buffer);
|
||
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
|
||
picon->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
picon=DestroyImage(picon);
|
||
(void) WriteBlobString(image,"};\n");
|
||
(void) CloseBlob(image);
|
||
return(MagickTrue);
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% W r i t e X P M I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% WriteXPMImage() writes an image to a file in the X pixmap format.
|
||
%
|
||
% The format of the WriteXPMImage method is:
|
||
%
|
||
% MagickBooleanType WriteXPMImage(const ImageInfo *image_info,Image *image)
|
||
%
|
||
% A description of each parameter follows.
|
||
%
|
||
% o image_info: the image info.
|
||
%
|
||
% o image: The image.
|
||
%
|
||
*/
|
||
static MagickBooleanType WriteXPMImage(const ImageInfo *image_info,Image *image)
|
||
{
|
||
#define MaxCixels 92
|
||
|
||
static const char
|
||
Cixel[MaxCixels+1] = " .XoO+@#$%&*=-;:>,<1234567890qwertyuipasdfghjk"
|
||
"lzxcvbnmMNBVCZASDFGHJKLPIUYTREWQ!~^/()_`'][{}|";
|
||
|
||
char
|
||
buffer[MaxTextExtent],
|
||
basename[MaxTextExtent],
|
||
name[MaxTextExtent],
|
||
symbol[MaxTextExtent];
|
||
|
||
ExceptionInfo
|
||
*exception;
|
||
|
||
MagickBooleanType
|
||
status;
|
||
|
||
MagickPixelPacket
|
||
pixel;
|
||
|
||
const IndexPacket
|
||
*indexes;
|
||
|
||
const PixelPacket
|
||
*p;
|
||
|
||
ssize_t
|
||
i,
|
||
x;
|
||
|
||
size_t
|
||
characters_per_pixel;
|
||
|
||
ssize_t
|
||
j,
|
||
k,
|
||
opacity,
|
||
y;
|
||
|
||
/*
|
||
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);
|
||
exception=(&image->exception);
|
||
status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
|
||
if (status == MagickFalse)
|
||
return(status);
|
||
if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)
|
||
(void) TransformImageColorspace(image,sRGBColorspace);
|
||
opacity=(-1);
|
||
if (image->matte == MagickFalse)
|
||
{
|
||
if ((image->storage_class == DirectClass) || (image->colors > 256))
|
||
(void) SetImageType(image,PaletteType);
|
||
}
|
||
else
|
||
{
|
||
MagickRealType
|
||
alpha,
|
||
beta;
|
||
|
||
/*
|
||
Identify transparent colormap index.
|
||
*/
|
||
if ((image->storage_class == DirectClass) || (image->colors > 256))
|
||
(void) SetImageType(image,PaletteBilevelMatteType);
|
||
for (i=0; i < (ssize_t) image->colors; i++)
|
||
if (image->colormap[i].opacity != OpaqueOpacity)
|
||
{
|
||
if (opacity < 0)
|
||
{
|
||
opacity=i;
|
||
continue;
|
||
}
|
||
alpha=(Quantum) TransparentOpacity-(MagickRealType)
|
||
image->colormap[i].opacity;
|
||
beta=(Quantum) TransparentOpacity-(MagickRealType)
|
||
image->colormap[opacity].opacity;
|
||
if (alpha < beta)
|
||
opacity=i;
|
||
}
|
||
if (opacity == -1)
|
||
{
|
||
(void) SetImageType(image,PaletteBilevelMatteType);
|
||
for (i=0; i < (ssize_t) image->colors; i++)
|
||
if (image->colormap[i].opacity != OpaqueOpacity)
|
||
{
|
||
if (opacity < 0)
|
||
{
|
||
opacity=i;
|
||
continue;
|
||
}
|
||
alpha=(Quantum) TransparentOpacity-(MagickRealType)
|
||
image->colormap[i].opacity;
|
||
beta=(Quantum) TransparentOpacity-(MagickRealType)
|
||
image->colormap[opacity].opacity;
|
||
if (alpha < beta)
|
||
opacity=i;
|
||
}
|
||
}
|
||
if (opacity >= 0)
|
||
{
|
||
image->colormap[opacity].red=image->transparent_color.red;
|
||
image->colormap[opacity].green=image->transparent_color.green;
|
||
image->colormap[opacity].blue=image->transparent_color.blue;
|
||
}
|
||
}
|
||
/*
|
||
Compute the character per pixel.
|
||
*/
|
||
characters_per_pixel=1;
|
||
for (k=MaxCixels; (ssize_t) image->colors > k; k*=MaxCixels)
|
||
characters_per_pixel++;
|
||
/*
|
||
XPM header.
|
||
*/
|
||
(void) WriteBlobString(image,"/* XPM */\n");
|
||
GetPathComponent(image->filename,BasePath,basename);
|
||
if (isalnum((int) ((unsigned char) *basename)) == 0)
|
||
{
|
||
(void) FormatLocaleString(buffer,MaxTextExtent,"xpm_%.1024s",basename);
|
||
(void) CopyMagickString(basename,buffer,MaxTextExtent);
|
||
}
|
||
if (isalpha((int) ((unsigned char) basename[0])) == 0)
|
||
basename[0]='_';
|
||
for (i=1; basename[i] != '\0'; i++)
|
||
if (isalnum((int) ((unsigned char) basename[i])) == 0)
|
||
basename[i]='_';
|
||
(void) FormatLocaleString(buffer,MaxTextExtent,
|
||
"static char *%.1024s[] = {\n",basename);
|
||
(void) WriteBlobString(image,buffer);
|
||
(void) WriteBlobString(image,"/* columns rows colors chars-per-pixel */\n");
|
||
(void) FormatLocaleString(buffer,MaxTextExtent,
|
||
"\"%.20g %.20g %.20g %.20g \",\n",(double) image->columns,(double)
|
||
image->rows,(double) image->colors,(double) characters_per_pixel);
|
||
(void) WriteBlobString(image,buffer);
|
||
GetMagickPixelPacket(image,&pixel);
|
||
for (i=0; i < (ssize_t) image->colors; i++)
|
||
{
|
||
/*
|
||
Define XPM color.
|
||
*/
|
||
SetMagickPixelPacket(image,image->colormap+i,(IndexPacket *) NULL,&pixel);
|
||
pixel.colorspace=sRGBColorspace;
|
||
pixel.depth=8;
|
||
pixel.opacity=(MagickRealType) OpaqueOpacity;
|
||
(void) QueryMagickColorname(image,&pixel,XPMCompliance,name,exception);
|
||
if (i == opacity)
|
||
(void) CopyMagickString(name,"None",MaxTextExtent);
|
||
/*
|
||
Write XPM color.
|
||
*/
|
||
k=i % MaxCixels;
|
||
symbol[0]=Cixel[k];
|
||
for (j=1; j < (ssize_t) characters_per_pixel; j++)
|
||
{
|
||
k=((i-k)/MaxCixels) % MaxCixels;
|
||
symbol[j]=Cixel[k];
|
||
}
|
||
symbol[j]='\0';
|
||
(void) FormatLocaleString(buffer,MaxTextExtent,
|
||
"\"%.1024s c %.1024s\",\n",symbol,name);
|
||
(void) WriteBlobString(image,buffer);
|
||
}
|
||
/*
|
||
Define XPM pixels.
|
||
*/
|
||
(void) WriteBlobString(image,"/* pixels */\n");
|
||
for (y=0; y < (ssize_t) image->rows; y++)
|
||
{
|
||
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetVirtualIndexQueue(image);
|
||
(void) WriteBlobString(image,"\"");
|
||
for (x=0; x < (ssize_t) image->columns; x++)
|
||
{
|
||
k=((ssize_t) GetPixelIndex(indexes+x) % MaxCixels);
|
||
symbol[0]=Cixel[k];
|
||
for (j=1; j < (ssize_t) characters_per_pixel; j++)
|
||
{
|
||
k=(((int) GetPixelIndex(indexes+x)-k)/MaxCixels) % MaxCixels;
|
||
symbol[j]=Cixel[k];
|
||
}
|
||
symbol[j]='\0';
|
||
(void) CopyMagickString(buffer,symbol,MaxTextExtent);
|
||
(void) WriteBlobString(image,buffer);
|
||
}
|
||
(void) FormatLocaleString(buffer,MaxTextExtent,"\"%.1024s\n",
|
||
(y == (ssize_t) (image->rows-1) ? "" : ","));
|
||
(void) WriteBlobString(image,buffer);
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
|
||
image->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
(void) WriteBlobString(image,"};\n");
|
||
(void) CloseBlob(image);
|
||
return(MagickTrue);
|
||
}
|