static int IntensityCompare(const void *x,const void *y)
{
const PixelInfo
*color_1,
*color_2;
int
intensity;
color_1=(const PixelInfo *) x;
color_2=(const PixelInfo *) y;
intensity=(int) GetPixelInfoIntensity((const Image *) NULL,color_2)-(int)
GetPixelInfoIntensity((const Image *) NULL,color_1);
return(intensity);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d G R A D I E N T I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadGRADIENTImage creates a gradient image and initializes it to
% the color range as specified by the filename. It allocates the memory
% necessary for the new Image structure and returns a pointer to the new
% image.
%
% The format of the ReadGRADIENTImage method is:
%
% Image *ReadGRADIENTImage(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 *ReadGRADIENTImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
char
colorname[MaxTextExtent];
Image
*image;
MagickBooleanType
status;
PixelInfo
start_color,
stop_color;
/*
Initialize Image structure.
*/
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=AcquireImage(image_info,exception);
if ((image->columns == 0) || (image->rows == 0))
ThrowReaderException(OptionError,"MustSpecifyImageSize");
(void) SetImageAlpha(image,(Quantum) TransparentAlpha,exception);
(void) CopyMagickString(image->filename,image_info->filename,MaxTextExtent);
(void) CopyMagickString(colorname,image_info->filename,MaxTextExtent);
(void) sscanf(image_info->filename,"%[^-]",colorname);
status=QueryColorCompliance(colorname,AllCompliance,&start_color,exception);
if (status == MagickFalse)
{
image=DestroyImage(image);
return((Image *) NULL);
}
(void) CopyMagickString(colorname,"white",MaxTextExtent);
if (GetPixelInfoIntensity(&start_color) > (Quantum) (QuantumRange/2))
(void) CopyMagickString(colorname,"black",MaxTextExtent);
(void) sscanf(image_info->filename,"%*[^-]-%s",colorname);
status=QueryColorCompliance(colorname,AllCompliance,&stop_color,exception);
if (status == MagickFalse)
{
image=DestroyImage(image);
return((Image *) NULL);
}
(void) GradientImage(image,LocaleCompare(image_info->magick,"GRADIENT") == 0 ?
LinearGradient : RadialGradient,PadSpread,&start_color,&stop_color,
exception);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e U I L I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Procedure WriteUILImage() writes an image to a file in the X-Motif UIL table
% format.
%
% The format of the WriteUILImage method is:
%
% MagickBooleanType WriteUILImage(const ImageInfo *image_info,
% Image *image,ExceptionInfo *exception)
%
% A description of each parameter follows.
%
% o image_info: the image info.
%
% o image: The image.
%
% o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType WriteUILImage(const ImageInfo *image_info,Image *image,
ExceptionInfo *exception)
{
#define MaxCixels 92
char
basename[MagickPathExtent],
buffer[MagickPathExtent],
name[MagickPathExtent],
*symbol;
int
j;
MagickBooleanType
status,
transparent;
MagickSizeType
number_pixels;
PixelInfo
pixel;
register const Quantum
*p;
register ssize_t
i,
x;
size_t
characters_per_pixel,
colors;
ssize_t
k,
y;
static const char
Cixel[MaxCixels+1] = " .XoO+@#$%&*=-;:>,<1234567890qwertyuipasdfghjk"
"lzxcvbnmMNBVCZASDFGHJKLPIUYTREWQ!~^/()_`'][{}|";
/*
Open output image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickCoreSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickCoreSignature);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
if (status == MagickFalse)
return(status);
(void) TransformImageColorspace(image,sRGBColorspace,exception);
transparent=MagickFalse;
i=0;
p=(const Quantum *) NULL;
if (image->storage_class == PseudoClass)
colors=image->colors;
else
{
unsigned char
*matte_image;
/*
Convert DirectClass to PseudoClass image.
*/
matte_image=(unsigned char *) NULL;
if (image->alpha_trait != UndefinedPixelTrait)
{
/*
Map all the transparent pixels.
*/
number_pixels=(MagickSizeType) image->columns*image->rows;
if (number_pixels != ((MagickSizeType) (size_t) number_pixels))
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
matte_image=(unsigned char *) AcquireQuantumMemory(image->columns,
image->rows*sizeof(*matte_image));
if (matte_image == (unsigned char *) NULL)
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
if (p == (const Quantum *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
matte_image[i]=(unsigned char) (GetPixelAlpha(image,p) ==
(Quantum) TransparentAlpha ? 1 : 0);
if (matte_image[i] != 0)
transparent=MagickTrue;
i++;
p+=GetPixelChannels(image);
}
}
}
(void) SetImageType(image,PaletteType,exception);
colors=image->colors;
if (transparent != MagickFalse)
{
register Quantum
*q;
colors++;
for (y=0; y < (ssize_t) image->rows; y++)
{
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
if (matte_image[i] != 0)
SetPixelIndex(image,(Quantum) image->colors,q);
q+=GetPixelChannels(image);
}
}
}
if (matte_image != (unsigned char *) NULL)
matte_image=(unsigned char *) RelinquishMagickMemory(matte_image);
}
/*
Compute the character per pixel.
*/
characters_per_pixel=1;
for (k=MaxCixels; (ssize_t) colors > k; k*=MaxCixels)
characters_per_pixel++;
/*
UIL header.
*/
symbol=AcquireString("");
(void) WriteBlobString(image,"/* UIL */\n");
GetPathComponent(image->filename,BasePath,basename);
(void) FormatLocaleString(buffer,MagickPathExtent,
"value\n %s_ct : color_table(\n",basename);
(void) WriteBlobString(image,buffer);
GetPixelInfo(image,&pixel);
for (i=0; i < (ssize_t) colors; i++)
{
/*
Define UIL color.
*/
pixel=image->colormap[i];
pixel.colorspace=sRGBColorspace;
pixel.depth=8;
pixel.alpha=(double) OpaqueAlpha;
GetColorTuple(&pixel,MagickTrue,name);
if (transparent != MagickFalse)
if (i == (ssize_t) (colors-1))
(void) CopyMagickString(name,"None",MagickPathExtent);
/*
Write UIL color.
*/
k=i % MaxCixels;
symbol[0]=Cixel[k];
for (j=1; j < (int) characters_per_pixel; j++)
{
k=((i-k)/MaxCixels) % MaxCixels;
symbol[j]=Cixel[k];
}
symbol[j]='\0';
(void) SubstituteString(&symbol,"'","''");
if (LocaleCompare(name,"None") == 0)
(void) FormatLocaleString(buffer,MagickPathExtent,
" background color = '%s'",symbol);
else
(void) FormatLocaleString(buffer,MagickPathExtent,
" color('%s',%s) = '%s'",name,
GetPixelInfoIntensity(image,image->colormap+i) <
(QuantumRange/2.0) ? "background" : "foreground",symbol);
(void) WriteBlobString(image,buffer);
(void) FormatLocaleString(buffer,MagickPathExtent,"%s",
(i == (ssize_t) (colors-1) ? ");\n" : ",\n"));
(void) WriteBlobString(image,buffer);
}
/*
Define UIL pixels.
*/
GetPathComponent(image->filename,BasePath,basename);
(void) FormatLocaleString(buffer,MagickPathExtent,
" %s_icon : icon(color_table = %s_ct,\n",basename,basename);
(void) WriteBlobString(image,buffer);
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
if (p == (const Quantum *) NULL)
break;
(void) WriteBlobString(image," \"");
for (x=0; x < (ssize_t) image->columns; x++)
{
k=((ssize_t) GetPixelIndex(image,p) % MaxCixels);
symbol[0]=Cixel[k];
for (j=1; j < (int) characters_per_pixel; j++)
{
k=(((int) GetPixelIndex(image,p)-k)/MaxCixels) %
MaxCixels;
symbol[j]=Cixel[k];
}
symbol[j]='\0';
(void) CopyMagickString(buffer,symbol,MagickPathExtent);
(void) WriteBlobString(image,buffer);
p+=GetPixelChannels(image);
}
(void) FormatLocaleString(buffer,MagickPathExtent,"\"%s\n",
(y == (ssize_t) (image->rows-1) ? ");" : ","));
(void) WriteBlobString(image,buffer);
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
image->rows);
if (status == MagickFalse)
break;
}
symbol=DestroyString(symbol);
(void) CloseBlob(image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d G R A D I E N T I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadGRADIENTImage creates a gradient image and initializes it to
% the color range as specified by the filename. It allocates the memory
% necessary for the new Image structure and returns a pointer to the new
% image.
%
% The format of the ReadGRADIENTImage method is:
%
% Image *ReadGRADIENTImage(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 *ReadGRADIENTImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
char
colorname[MagickPathExtent+4];
Image
*image;
ImageInfo
*read_info;
MagickBooleanType
icc_color,
status;
StopInfo
*stops;
/*
Initialize Image structure.
*/
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);
read_info=CloneImageInfo(image_info);
SetImageInfoBlob(read_info,(void *) NULL,0);
(void) CopyMagickString(colorname,image_info->filename,MagickPathExtent);
(void) sscanf(image_info->filename,"%[^-]",colorname);
(void) FormatLocaleString(read_info->filename,MagickPathExtent,"xc:%s",
colorname);
image=ReadImage(read_info,exception);
read_info=DestroyImageInfo(read_info);
if (image == (Image *) NULL)
return((Image *) NULL);
(void) SetImageAlpha(image,(Quantum) TransparentAlpha,exception);
(void) CopyMagickString(image->filename,image_info->filename,MagickPathExtent);
icc_color=MagickFalse;
if (LocaleCompare(colorname,"icc") == 0)
{
(void) ConcatenateMagickString(colorname,"-",MagickPathExtent);
(void) sscanf(image_info->filename,"%*[^-]-%[^-]",colorname+4);
icc_color=MagickTrue;
}
stops=(StopInfo *) AcquireQuantumMemory(2,sizeof(*stops));
if (stops == (StopInfo *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
stops[0].offset=0.0;
stops[1].offset=1.0;
status=QueryColorCompliance(colorname,AllCompliance,&stops[0].color,exception);
if (status == MagickFalse)
{
stops=(StopInfo *) RelinquishMagickMemory(stops);
image=DestroyImage(image);
return((Image *) NULL);
}
(void) SetImageColorspace(image,stops[0].color.colorspace,exception);
(void) CopyMagickString(colorname,"white",MagickPathExtent);
if (GetPixelInfoIntensity(image,&stops[0].color) > (QuantumRange/2.0))
(void) CopyMagickString(colorname,"black",MagickPathExtent);
if (icc_color == MagickFalse)
(void) sscanf(image_info->filename,"%*[^-]-%[^-]",colorname);
else
(void) sscanf(image_info->filename,"%*[^-]-%*[^-]-%[^-]",colorname);
status=QueryColorCompliance(colorname,AllCompliance,&stops[1].color,exception);
if (status == MagickFalse)
{
stops=(StopInfo *) RelinquishMagickMemory(stops);
image=DestroyImage(image);
return((Image *) NULL);
}
image->alpha_trait=stops[0].color.alpha_trait;
if (stops[1].color.alpha_trait != UndefinedPixelTrait)
image->alpha_trait=stops[1].color.alpha_trait;
status=GradientImage(image,LocaleCompare(image_info->magick,"GRADIENT") == 0 ?
LinearGradient : RadialGradient,PadSpread,stops,2,exception);
stops=(StopInfo *) RelinquishMagickMemory(stops);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
return(GetFirstImageInList(image));
}
