/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t I m a g e T y p e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetImageType() returns the potential type of image:
%
% Bilevel Grayscale GrayscaleMatte
% Palette PaletteMatte TrueColor
% TrueColorMatte ColorSeparation ColorSeparationMatte
%
% To ensure the image type matches its potential, use SetImageType():
%
% (void) SetImageType(image,GetImageType(image));
%
% The format of the GetImageType method is:
%
% ImageType GetImageType(const Image *image,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image: the image.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport ImageType GetImageType(const Image *image,ExceptionInfo *exception)
{
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
if (image->colorspace == CMYKColorspace)
{
if (image->alpha_trait != BlendPixelTrait)
return(ColorSeparationType);
return(ColorSeparationMatteType);
}
if (IsImageMonochrome(image,exception) != MagickFalse)
return(BilevelType);
if (IsImageGray(image,exception) != MagickFalse)
{
if (image->alpha_trait == BlendPixelTrait)
return(GrayscaleMatteType);
return(GrayscaleType);
}
if (IsPaletteImage(image,exception) != MagickFalse)
{
if (image->alpha_trait == BlendPixelTrait)
return(PaletteMatteType);
return(PaletteType);
}
if (image->alpha_trait == BlendPixelTrait)
return(TrueColorMatteType);
return(TrueColorType);
}
static MagickBooleanType WritePCLImage(const ImageInfo *image_info,Image *image,
ExceptionInfo *exception)
{
char
buffer[MaxTextExtent];
const char
*option;
MagickBooleanType
status;
MagickOffsetType
scene;
register const Quantum *p;
register ssize_t i, x;
register unsigned char *q;
size_t
density,
length,
one,
packets;
ssize_t
y;
unsigned char
bits_per_pixel,
*compress_pixels,
*pixels,
*previous_pixels;
/*
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);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
if (status == MagickFalse)
return(status);
density=75;
if (image_info->density != (char *) NULL)
{
GeometryInfo
geometry;
(void) ParseGeometry(image_info->density,&geometry);
density=(size_t) geometry.rho;
}
scene=0;
one=1;
do
{
if (IsRGBColorspace(image->colorspace) == MagickFalse)
(void) TransformImageColorspace(image,RGBColorspace,exception);
/*
Initialize the printer.
*/
(void) WriteBlobString(image,"\033E"); /* printer reset */
(void) WriteBlobString(image,"\033*r3F"); /* set presentation mode */
(void) FormatLocaleString(buffer,MaxTextExtent,"\033*r%.20gs%.20gT",
(double) image->columns,(double) image->rows);
(void) WriteBlobString(image,buffer);
(void) FormatLocaleString(buffer,MaxTextExtent,"\033*t%.20gR",(double)
density);
(void) WriteBlobString(image,buffer);
(void) WriteBlobString(image,"\033&l0E"); /* top margin 0 */
if (IsImageMonochrome(image,exception) != MagickFalse)
{
/*
Monochrome image: use default printer monochrome setup.
*/
bits_per_pixel=1;
}
else
if (image->storage_class == DirectClass)
{
/*
DirectClass image.
*/
bits_per_pixel=24;
(void) WriteBlobString(image,"\033*v6W"); /* set color mode */
(void) WriteBlobByte(image,0); /* RGB */
(void) WriteBlobByte(image,3); /* direct by pixel */
(void) WriteBlobByte(image,0); /* bits per index (ignored) */
(void) WriteBlobByte(image,8); /* bits per red component */
(void) WriteBlobByte(image,8); /* bits per green component */
(void) WriteBlobByte(image,8); /* bits per blue component */
}
else
{
/*
Colormapped image.
*/
bits_per_pixel=8;
(void) WriteBlobString(image,"\033*v6W"); /* set color mode... */
(void) WriteBlobByte(image,0); /* RGB */
(void) WriteBlobByte(image,1); /* indexed by pixel */
(void) WriteBlobByte(image,bits_per_pixel); /* bits per index */
(void) WriteBlobByte(image,8); /* bits per red component */
(void) WriteBlobByte(image,8); /* bits per green component */
(void) WriteBlobByte(image,8); /* bits per blue component */
for (i=0; i < (ssize_t) image->colors; i++)
{
(void) FormatLocaleString(buffer,MaxTextExtent,
"\033*v%da%db%dc%.20gI",
ScaleQuantumToChar(image->colormap[i].red),
ScaleQuantumToChar(image->colormap[i].green),
ScaleQuantumToChar(image->colormap[i].blue),(double) i);
(void) WriteBlobString(image,buffer);
}
for (one=1; i < (ssize_t) (one << bits_per_pixel); i++)
{
(void) FormatLocaleString(buffer,MaxTextExtent,"\033*v%.20gI",
(double) i);
(void) WriteBlobString(image,buffer);
}
}
option=GetImageOption(image_info,"pcl:fit-to-page");
if ((option != (const char *) NULL) &&
(IsMagickTrue(option) != MagickFalse))
(void) WriteBlobString(image,"\033*r3A");
else
(void) WriteBlobString(image,"\033*r1A"); /* start raster graphics */
(void) WriteBlobString(image,"\033*b0Y"); /* set y offset */
length=(image->columns*bits_per_pixel+7)/8;
pixels=(unsigned char *) AcquireQuantumMemory(length+1,sizeof(*pixels));
if (pixels == (unsigned char *) NULL)
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
(void) ResetMagickMemory(pixels,0,(length+1)*sizeof(*pixels));
compress_pixels=(unsigned char *) NULL;
previous_pixels=(unsigned char *) NULL;
switch (image->compression)
{
case NoCompression:
{
(void) FormatLocaleString(buffer,MaxTextExtent,"\033*b0M");
(void) WriteBlobString(image,buffer);
break;
}
case RLECompression:
{
compress_pixels=(unsigned char *) AcquireQuantumMemory(length+256,
sizeof(*compress_pixels));
if (compress_pixels == (unsigned char *) NULL)
{
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
}
(void) ResetMagickMemory(compress_pixels,0,(length+256)*
sizeof(*compress_pixels));
(void) FormatLocaleString(buffer,MaxTextExtent,"\033*b2M");
(void) WriteBlobString(image,buffer);
break;
}
default:
{
compress_pixels=(unsigned char *) AcquireQuantumMemory(3*length+256,
sizeof(*compress_pixels));
if (compress_pixels == (unsigned char *) NULL)
{
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
}
(void) ResetMagickMemory(compress_pixels,0,(3*length+256)*
sizeof(*compress_pixels));
previous_pixels=(unsigned char *) AcquireQuantumMemory(length+1,
sizeof(*previous_pixels));
if (previous_pixels == (unsigned char *) NULL)
{
compress_pixels=(unsigned char *) RelinquishMagickMemory(
compress_pixels);
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
}
(void) ResetMagickMemory(previous_pixels,0,(length+1)*
sizeof(*previous_pixels));
(void) FormatLocaleString(buffer,MaxTextExtent,"\033*b3M");
(void) WriteBlobString(image,buffer);
break;
}
}
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
if (p == (const Quantum *) NULL)
break;
q=pixels;
switch (bits_per_pixel)
{
case 1:
{
register unsigned char
bit,
byte;
/*
Monochrome image.
*/
bit=0;
byte=0;
for (x=0; x < (ssize_t) image->columns; x++)
{
byte<<=1;
if (GetPixelIntensity(image,p) < ((MagickRealType) QuantumRange/2.0))
byte|=0x01;
bit++;
if (bit == 8)
{
*q++=byte;
bit=0;
byte=0;
}
p+=GetPixelChannels(image);
}
if (bit != 0)
*q++=byte << (8-bit);
break;
}
case 8:
{
/*
Colormapped image.
*/
for (x=0; x < (ssize_t) image->columns; x++)
{
*q++=(unsigned char) GetPixelIndex(image,p);
p+=GetPixelChannels(image);
}
break;
}
case 24:
case 32:
{
/*
Truecolor image.
*/
for (x=0; x < (ssize_t) image->columns; x++)
{
*q++=ScaleQuantumToChar(GetPixelRed(image,p));
*q++=ScaleQuantumToChar(GetPixelGreen(image,p));
*q++=ScaleQuantumToChar(GetPixelBlue(image,p));
p+=GetPixelChannels(image);
}
break;
}
}
switch (image->compression)
{
case NoCompression:
{
(void) FormatLocaleString(buffer,MaxTextExtent,"\033*b%.20gW",
(double) length);
(void) WriteBlobString(image,buffer);
(void) WriteBlob(image,length,pixels);
break;
}
case RLECompression:
{
packets=PCLPackbitsCompressImage(length,pixels,compress_pixels);
(void) FormatLocaleString(buffer,MaxTextExtent,"\033*b%.20gW",
(double) packets);
(void) WriteBlobString(image,buffer);
(void) WriteBlob(image,packets,compress_pixels);
break;
}
default:
{
if (y == 0)
for (i=0; i < (ssize_t) length; i++)
previous_pixels[i]=(~pixels[i]);
packets=PCLDeltaCompressImage(length,previous_pixels,pixels,
compress_pixels);
(void) FormatLocaleString(buffer,MaxTextExtent,"\033*b%.20gW",
(double) packets);
(void) WriteBlobString(image,buffer);
(void) WriteBlob(image,packets,compress_pixels);
(void) CopyMagickMemory(previous_pixels,pixels,length*
sizeof(*pixels));
break;
}
}
}
(void) WriteBlobString(image,"\033*rB"); /* end graphics */
switch (image->compression)
{
case NoCompression:
break;
case RLECompression:
{
compress_pixels=(unsigned char *) RelinquishMagickMemory(
compress_pixels);
break;
}
default:
{
previous_pixels=(unsigned char *) RelinquishMagickMemory(
previous_pixels);
compress_pixels=(unsigned char *) RelinquishMagickMemory(
compress_pixels);
break;
}
}
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
if (GetNextImageInList(image) == (Image *) NULL)
break;
image=SyncNextImageInList(image);
status=SetImageProgress(image,SaveImagesTag,scene++,
GetImageListLength(image));
if (status == MagickFalse)
break;
} while (image_info->adjoin != MagickFalse);
(void) WriteBlobString(image,"\033E");
(void) CloseBlob(image);
return(MagickTrue);
}
