/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% 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 %
% 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.h"
#include "magick/color-private.h"
#include "magick/colorspace.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/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"
/*
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: 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 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 char *CopyXPMColor(char *destination,const char *source,size_t length)
{
while (length-- && (*source != '\0'))
*destination++=(*source++);
*destination='\0';
return(destination-length);
}
static char *NextXPMLine(char *p)
{
assert(p != (char*)NULL);
p=strchr(p,'\n');
if (p != (char *) NULL)
p++;
return(p);
}
static inline size_t MagickMin(const size_t x,const size_t y)
{
if (x < y)
return(x);
return(y);
}
static char *ParseXPMColor(char *color)
{
#define NumberTargets 6
register char
*p,
*r;
register const char
*q;
register long
i;
static const char
*targets[NumberTargets] = { "c ", "g ", "g4 ", "m ", "b ", "s " };
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);
}
static Image *ReadXPMImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
char
key[MaxTextExtent],
target[MaxTextExtent],
*xpm_buffer;
Image
*image;
long
j,
y;
MagickBooleanType
active,
status;
register char
*p,
*q,
*next;
register IndexPacket
*indexes;
register long
i,
x;
register PixelPacket
*r;
size_t
length;
SplayTreeInfo
*xpm_colors;
ssize_t
count;
unsigned long
width;
/*
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);
}
/*
Read XPM file.
*/
length=MaxTextExtent;
xpm_buffer=(char *) AcquireQuantumMemory((size_t) length,sizeof(*xpm_buffer));
p=xpm_buffer;
if (xpm_buffer != (char *) NULL)
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;
for (p=xpm_buffer; *p != '\0'; p++)
{
if (*p != '"')
continue;
count=(ssize_t) sscanf(p+1,"%lu %lu %lu %lu",&image->columns,&image->rows,
&image->colors,&width);
if (count == 4)
break;
}
if ((count != 4) || (width > 10) || (image->columns == 0) ||
(image->rows == 0) || (image->colors == 0))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
image->depth=16;
/*
Remove unquoted characters.
*/
i=0;
active=MagickFalse;
q=xpm_buffer;
while (*p != '\0')
{
if (*p++ == '"')
{
if (active != MagickFalse)
*q++='\n';
active=active != MagickFalse ? MagickFalse : MagickTrue;
}
if (active != MagickFalse)
*q++=(*p);
}
*q='\0';
/*
Initialize image structure.
*/
xpm_colors=NewSplayTree(CompareXPMColor,RelinquishMagickMemory,
(void *(*)(void *)) NULL);
if (AllocateImageColormap(image,image->colors) == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
/*
Read image colormap.
*/
i=1;
next=NextXPMLine(xpm_buffer);
for (j=0; (j < (long) image->colors) && (next != (char*) NULL); j++)
{
p=next;
next=NextXPMLine(p);
(void) CopyXPMColor(key,p,MagickMin((size_t) width,MaxTextExtent));
status=AddValueToSplayTree(xpm_colors,ConstantString(key),(void *) j);
/*
Parse color.
*/
(void) CopyMagickString(target,"gray",MaxTextExtent);
q=ParseXPMColor(p+width);
if (q != (char *) NULL)
{
while ((isspace((int) ((unsigned char) *q)) == 0) && (*q != '\0'))
q++;
if (next != (char *) NULL)
(void) CopyXPMColor(target,q,MagickMin((size_t) (next-q),
MaxTextExtent));
else
(void) CopyMagickString(target,q,MaxTextExtent);
q=ParseXPMColor(target);
if (q != (char *) NULL)
*q='\0';
}
StripString(target);
if (LocaleCompare(target,"none") == 0)
{
image->storage_class=DirectClass;
image->matte=MagickTrue;
}
if (QueryColorDatabase(target,&image->colormap[j],exception) == MagickFalse)
break;
}
if (j < (long) image->colors)
ThrowReaderException(CorruptImageError,"CorruptImage");
j=0;
if (image_info->ping == MagickFalse)
{
/*
Read image pixels.
*/
if (SetImageExtent(image,0,0) == MagickFalse)
{
InheritException(exception,&image->exception);
return(DestroyImageList(image));
}
for (y=0; y < (long) image->rows; y++)
{
p=NextXPMLine(p);
if (p == (char *) NULL)
break;
r=SetImagePixels(image,0,y,image->columns,1);
if (r == (PixelPacket *) NULL)
break;
indexes=GetIndexes(image);
for (x=0; x < (long) image->columns; x++)
{
(void) CopyXPMColor(key,p,(size_t) width);
j=(long) GetValueFromSplayTree(xpm_colors,key);
if (image->storage_class == PseudoClass)
indexes[x]=(IndexPacket) j;
*r=image->colormap[j];
r++;
p+=width;
}
if (SyncImagePixels(image) == MagickFalse)
break;
}
if (y < (long) image->rows)
ThrowReaderException(CorruptImageError,"NotEnoughPixelData");
}
/*
Free resources.
*/
xpm_colors=DestroySplayTree(xpm_colors);
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:
%
% unsigned long RegisterXPMImage(void)
%
*/
ModuleExport unsigned long RegisterXPMImage(void)
{
MagickInfo
*entry;
entry=SetMagickInfo("PICON");
entry->decoder=(DecodeImageHandler *) ReadXPMImage;
entry->encoder=(EncodeImageHandler *) WritePICONImage;
entry->adjoin=MagickFalse;
entry->description=ConstantString("Personal Icon");
entry->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->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->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");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e P I C O N I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Procedure 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];
Image
*picon,
*map;
ImageInfo
*blob_info;
long
j,
k,
y;
MagickBooleanType
status,
transparent;
MagickPixelPacket
pixel;
RectangleInfo
geometry;
register const PixelPacket
*p;
register IndexPacket
*indexes;
register long
i,
x;
register PixelPacket
*q;
unsigned long
characters_per_pixel,
colors;
/*
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);
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) &&
(IsGrayImage(image,&image->exception) != MagickFalse))
map=BlobToImage(blob_info,Graymap,GraymapExtent,&image->exception);
else
map=BlobToImage(blob_info,Colormap,ColormapExtent,&image->exception);
(void) RelinquishUniqueFileResource(blob_info->filename);
blob_info=DestroyImageInfo(blob_info);
if ((picon == (Image *) NULL) || (map == (Image *) NULL))
return(MagickFalse);
status=MapImage(picon,map,image_info->dither);
map=DestroyImage(map);
transparent=MagickFalse;
if (picon->storage_class == PseudoClass)
{
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 < (long) picon->rows; y++)
{
q=GetImagePixels(picon,0,y,picon->columns,1);
if (q == (PixelPacket *) NULL)
break;
for (x=0; x < (long) picon->columns; x++)
{
if (q->opacity == (Quantum) TransparentOpacity)
transparent=MagickTrue;
else
q->opacity=OpaqueOpacity;
q++;
}
if (SyncImagePixels(picon) == MagickFalse)
break;
}
}
(void) SetImageType(picon,PaletteType);
}
colors=picon->colors;
if (transparent != MagickFalse)
{
colors++;
picon->colormap=(PixelPacket *) ResizeQuantumMemory((void **)
picon->colormap,(size_t) colors,sizeof(*picon->colormap));
if (picon->colormap == (PixelPacket *) NULL)
ThrowWriterException(ResourceLimitError,"MemoryAllocationError");
for (y=0; y < (long) picon->rows; y++)
{
q=GetImagePixels(picon,0,y,picon->columns,1);
if (q == (PixelPacket *) NULL)
break;
indexes=GetIndexes(picon);
for (x=0; x < (long) picon->columns; x++)
{
if (q->opacity == (Quantum) TransparentOpacity)
indexes[x]=(IndexPacket) picon->colors;
q++;
}
if (SyncImagePixels(picon) == MagickFalse)
break;
}
}
/*
Compute the character per pixel.
*/
characters_per_pixel=1;
for (k=MaxCixels; (long) colors > k; k*=MaxCixels)
characters_per_pixel++;
/*
XPM header.
*/
(void) WriteBlobString(image,"/* XPM */\n");
GetPathComponent(picon->filename,BasePath,basename);
(void) FormatMagickString(buffer,MaxTextExtent,
"static char *%s[] = {\n",basename);
(void) WriteBlobString(image,buffer);
(void) WriteBlobString(image,"/* columns rows colors chars-per-pixel */\n");
(void) FormatMagickString(buffer,MaxTextExtent,"\"%lu %lu %lu %ld\",\n",
picon->columns,picon->rows,colors,characters_per_pixel);
(void) WriteBlobString(image,buffer);
GetMagickPixelPacket(image,&pixel);
for (i=0; i < (long) colors; i++)
{
/*
Define XPM color.
*/
SetMagickPixelPacket(image,picon->colormap+i,(IndexPacket *) NULL,&pixel);
pixel.colorspace=RGBColorspace;
pixel.depth=8;
pixel.opacity=(MagickRealType) OpaqueOpacity;
(void) QueryMagickColorname(image,&pixel,XPMCompliance,MagickFalse,name,
&image->exception);
if (LocaleNCompare(name,"rgb",3) == 0)
(void) QueryMagickColorname(image,&pixel,XPMCompliance,MagickTrue,name,
&image->exception);
if (transparent != MagickFalse)
{
if (i == (long) (colors-1))
(void) CopyMagickString(name,"grey75",MaxTextExtent);
}
/*
Write XPM color.
*/
k=i % MaxCixels;
symbol[0]=Cixel[k];
for (j=1; j < (long) characters_per_pixel; j++)
{
k=((i-k)/MaxCixels) % MaxCixels;
symbol[j]=Cixel[k];
}
symbol[j]='\0';
(void) FormatMagickString(buffer,MaxTextExtent,"\"%s c %s\",\n",
symbol,name);
(void) WriteBlobString(image,buffer);
}
/*
Define XPM pixels.
*/
(void) WriteBlobString(image,"/* pixels */\n");
for (y=0; y < (long) picon->rows; y++)
{
p=AcquireImagePixels(picon,0,y,picon->columns,1,&picon->exception);
if (p == (const PixelPacket *) NULL)
break;
indexes=GetIndexes(picon);
(void) WriteBlobString(image,"\"");
for (x=0; x < (long) picon->columns; x++)
{
k=((long) indexes[x] % MaxCixels);
symbol[0]=Cixel[k];
for (j=1; j < (long) characters_per_pixel; j++)
{
k=(((int) indexes[x]-k)/MaxCixels) % MaxCixels;
symbol[j]=Cixel[k];
}
symbol[j]='\0';
(void) CopyMagickString(buffer,symbol,MaxTextExtent);
(void) WriteBlobString(image,buffer);
}
(void) FormatMagickString(buffer,MaxTextExtent,"\"%s\n",
y == (long) (picon->rows-1) ? "" : ",");
(void) WriteBlobString(image,buffer);
if (QuantumTick(y,picon->rows) != MagickFalse)
if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
(QuantumTick(y,picon->rows) != MagickFalse))
{
status=image->progress_monitor(SaveImageTag,y,picon->rows,
image->client_data);
if (status == MagickFalse)
break;
}
}
picon=DestroyImage(picon);
(void) WriteBlobString(image,"};\n");
CloseBlob(image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e X P M I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Procedure 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];
long
j,
k,
opacity,
y;
MagickBooleanType
status;
MagickPixelPacket
pixel;
register const PixelPacket
*p;
register IndexPacket
*indexes;
register long
i,
x;
unsigned long
characters_per_pixel;
/*
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);
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 < (long) 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 < (long) 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; (long) 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) FormatMagickString(buffer,MaxTextExtent,"xpm_%s",basename);
(void) CopyMagickString(basename,buffer,MaxTextExtent);
}
for (i=0; basename[i] != '\0'; i++)
if (isalpha((int) ((unsigned char) basename[i])) == 0)
basename[i]='_';
(void) FormatMagickString(buffer,MaxTextExtent,
"static char *%s[] = {\n",basename);
(void) WriteBlobString(image,buffer);
(void) WriteBlobString(image,"/* columns rows colors chars-per-pixel */\n");
(void) FormatMagickString(buffer,MaxTextExtent,"\"%lu %lu %lu %ld\",\n",
image->columns,image->rows,image->colors,characters_per_pixel);
(void) WriteBlobString(image,buffer);
GetMagickPixelPacket(image,&pixel);
for (i=0; i < (long) image->colors; i++)
{
/*
Define XPM color.
*/
SetMagickPixelPacket(image,image->colormap+i,(IndexPacket *) NULL,&pixel);
pixel.colorspace=RGBColorspace;
pixel.depth=8;
pixel.opacity=(MagickRealType) OpaqueOpacity;
(void) QueryMagickColorname(image,&pixel,XPMCompliance,MagickFalse,name,
&image->exception);
if (LocaleNCompare(name,"rgb",3) == 0)
(void) QueryMagickColorname(image,&pixel,XPMCompliance,MagickTrue,name,
&image->exception);
if (i == opacity)
(void) CopyMagickString(name,"None",MaxTextExtent);
/*
Write XPM color.
*/
k=i % MaxCixels;
symbol[0]=Cixel[k];
for (j=1; j < (long) characters_per_pixel; j++)
{
k=((i-k)/MaxCixels) % MaxCixels;
symbol[j]=Cixel[k];
}
symbol[j]='\0';
(void) FormatMagickString(buffer,MaxTextExtent,"\"%s c %s\",\n",symbol,
name);
(void) WriteBlobString(image,buffer);
}
/*
Define XPM pixels.
*/
(void) WriteBlobString(image,"/* pixels */\n");
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
indexes=GetIndexes(image);
(void) WriteBlobString(image,"\"");
for (x=0; x < (long) image->columns; x++)
{
k=((long) indexes[x] % MaxCixels);
symbol[0]=Cixel[k];
for (j=1; j < (long) characters_per_pixel; j++)
{
k=(((int) indexes[x]-k)/MaxCixels) % MaxCixels;
symbol[j]=Cixel[k];
}
symbol[j]='\0';
(void) CopyMagickString(buffer,symbol,MaxTextExtent);
(void) WriteBlobString(image,buffer);
}
(void) FormatMagickString(buffer,MaxTextExtent,"\"%s\n",
(y == (long) (image->rows-1) ? "" : ","));
(void) WriteBlobString(image,buffer);
if (QuantumTick(y,image->rows) != MagickFalse)
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;
}
}
(void) WriteBlobString(image,"};\n");
CloseBlob(image);
return(MagickTrue);
}
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