/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following definitions.
- IsPSD
- CompositeOperatorToPSDBlendMode
- DecodePSDPixels
- GetPSDOffset
- GetPSDSize
- MagickAbsoluteValue
- ModeToString
- ParseImageResourceBlocks
- PSDBlendModeToCompositeOperator
- ReadPSDLayer
- ReadPSDImage
- RegisterPSDImage
- UnregisterPSDImage
- SetPSDOffset
- SetPSDSize
- PSDPackbitsEncodeImage
- WritePackbitsLength
- WriteOneChannel
- WriteImageChannels
- WritePascalString
- WriteResolutionResourceBlock
- RemoveICCProfileFromResourceBlock
- RemoveResolutionFromResourceBlock
- WritePSDImage
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% PPPP SSSSS DDDD %
% P P SS D D %
% PPPP SSS D D %
% P SS D D %
% P SSSSS DDDD %
% %
% %
% Read/Write Adobe Photoshop Image Format %
% %
% Software Design %
% John Cristy %
% Leonard Rosenthol %
% July 1992 %
% %
% %
% Copyright 1999-2013 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/artifact.h"
#include "magick/blob.h"
#include "magick/blob-private.h"
#include "magick/cache.h"
#include "magick/colormap.h"
#include "magick/colorspace.h"
#include "magick/colorspace-private.h"
#include "magick/constitute.h"
#include "magick/enhance.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/image.h"
#include "magick/image-private.h"
#include "magick/list.h"
#include "magick/log.h"
#include "magick/magick.h"
#include "magick/memory_.h"
#include "magick/module.h"
#include "magick/monitor-private.h"
#include "magick/pixel.h"
#include "magick/pixel-accessor.h"
#include "magick/profile.h"
#include "magick/property.h"
#include "magick/quantum-private.h"
#include "magick/static.h"
#include "magick/string_.h"
/*
Define declaractions.
*/
#define MaxPSDChannels 56
#define PSDQuantum(x) (((ssize_t) (x)+1) & -2)
/*
Enumerated declaractions.
*/
typedef enum
{
BitmapMode = 0,
GrayscaleMode = 1,
IndexedMode = 2,
RGBMode = 3,
CMYKMode = 4,
MultichannelMode = 7,
DuotoneMode = 8,
LabMode = 9
} PSDImageType;
/*
Typedef declaractions.
*/
typedef struct _ChannelInfo
{
short int
type;
size_t
size;
} ChannelInfo;
typedef struct _LayerInfo
{
RectangleInfo
page,
mask;
unsigned short
channels;
ChannelInfo
channel_info[MaxPSDChannels];
char
blendkey[4];
Quantum
opacity;
unsigned char
clipping,
visible,
flags;
size_t
offset_x,
offset_y;
unsigned char
name[256];
Image
*image;
} LayerInfo;
typedef struct _PSDInfo
{
char
signature[4];
unsigned short
channels,
color_channels,
version;
unsigned char
reserved[6];
size_t
rows,
columns;
unsigned short
depth,
mode;
} PSDInfo;
/*
Forward declarations.
*/
static MagickBooleanType
WritePSDImage(const ImageInfo *,Image *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% I s P S D %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% IsPSD()() returns MagickTrue if the image format type, identified by the
% magick string, is PSD.
%
% The format of the IsPSD method is:
%
% MagickBooleanType IsPSD(const unsigned char *magick,const size_t length)
%
% A description of each parameter follows:
%
% o magick: compare image format pattern against these bytes.
%
% o length: Specifies the length of the magick string.
%
*/
static MagickBooleanType IsPSD(const unsigned char *magick,const size_t length)
{
if (length < 4)
return(MagickFalse);
if (LocaleNCompare((const char *) magick,"8BPS",4) == 0)
return(MagickTrue);
return(MagickFalse);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d P S D I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadPSDImage() reads an Adobe Photoshop 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 ReadPSDImage method is:
%
% Image *ReadPSDImage(image_info)
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o exception: return any errors or warnings in this structure.
%
*/
static const char *CompositeOperatorToPSDBlendMode(CompositeOperator op)
{
const char
*blend_mode;
switch (op)
{
case OverCompositeOp: blend_mode = "norm"; break;
case MultiplyCompositeOp: blend_mode = "mul "; break;
case DissolveCompositeOp: blend_mode = "diss"; break;
case DifferenceCompositeOp: blend_mode = "diff"; break;
case DarkenCompositeOp: blend_mode = "dark"; break;
case LightenCompositeOp: blend_mode = "lite"; break;
case HueCompositeOp: blend_mode = "hue "; break;
case SaturateCompositeOp: blend_mode = "sat "; break;
case ColorizeCompositeOp: blend_mode = "colr"; break;
case LuminizeCompositeOp: blend_mode = "lum "; break;
case ScreenCompositeOp: blend_mode = "scrn"; break;
case OverlayCompositeOp: blend_mode = "over"; break;
default:
blend_mode = "norm";
}
return(blend_mode);
}
static ssize_t DecodePSDPixels(const size_t number_compact_pixels,
const unsigned char *compact_pixels,const ssize_t depth,
const size_t number_pixels,unsigned char *pixels)
{
int
pixel;
register ssize_t
i,
j;
size_t
length;
ssize_t
packets;
packets=(ssize_t) number_compact_pixels;
for (i=0; (packets > 1) && (i < (ssize_t) number_pixels); )
{
length=(*compact_pixels++);
packets--;
if (length == 128)
continue;
if (length > 128)
{
length=256-length+1;
pixel=(*compact_pixels++);
packets--;
for (j=0; j < (ssize_t) length; j++)
{
switch (depth)
{
case 1:
{
*pixels++=(pixel >> 7) & 0x01 ? 0U : 255U;
*pixels++=(pixel >> 6) & 0x01 ? 0U : 255U;
*pixels++=(pixel >> 5) & 0x01 ? 0U : 255U;
*pixels++=(pixel >> 4) & 0x01 ? 0U : 255U;
*pixels++=(pixel >> 3) & 0x01 ? 0U : 255U;
*pixels++=(pixel >> 2) & 0x01 ? 0U : 255U;
*pixels++=(pixel >> 1) & 0x01 ? 0U : 255U;
*pixels++=(pixel >> 0) & 0x01 ? 0U : 255U;
i+=8;
break;
}
case 4:
{
*pixels++=(unsigned char) ((pixel >> 4) & 0xff);
*pixels++=(unsigned char) ((pixel & 0x0f) & 0xff);
i+=2;
break;
}
case 2:
{
*pixels++=(unsigned char) ((pixel >> 6) & 0x03);
*pixels++=(unsigned char) ((pixel >> 4) & 0x03);
*pixels++=(unsigned char) ((pixel >> 2) & 0x03);
*pixels++=(unsigned char) ((pixel & 0x03) & 0x03);
i+=4;
break;
}
default:
{
*pixels++=(unsigned char) pixel;
i++;
break;
}
}
}
continue;
}
length++;
for (j=0; j < (ssize_t) length; j++)
{
switch (depth)
{
case 1:
{
*pixels++=(*compact_pixels >> 7) & 0x01 ? 0U : 255U;
*pixels++=(*compact_pixels >> 6) & 0x01 ? 0U : 255U;
*pixels++=(*compact_pixels >> 5) & 0x01 ? 0U : 255U;
*pixels++=(*compact_pixels >> 4) & 0x01 ? 0U : 255U;
*pixels++=(*compact_pixels >> 3) & 0x01 ? 0U : 255U;
*pixels++=(*compact_pixels >> 2) & 0x01 ? 0U : 255U;
*pixels++=(*compact_pixels >> 1) & 0x01 ? 0U : 255U;
*pixels++=(*compact_pixels >> 0) & 0x01 ? 0U : 255U;
i+=8;
break;
}
case 4:
{
*pixels++=(*compact_pixels >> 4) & 0xff;
*pixels++=(*compact_pixels & 0x0f) & 0xff;
i+=2;
break;
}
case 2:
{
*pixels++=(*compact_pixels >> 6) & 0x03;
*pixels++=(*compact_pixels >> 4) & 0x03;
*pixels++=(*compact_pixels >> 2) & 0x03;
*pixels++=(*compact_pixels & 0x03) & 0x03;
i+=4;
break;
}
default:
{
*pixels++=(*compact_pixels);
i++;
break;
}
}
compact_pixels++;
}
}
return(i);
}
static inline MagickOffsetType GetPSDOffset(PSDInfo *psd_info,Image *image)
{
if (psd_info->version == 1)
return((MagickOffsetType) ReadBlobMSBShort(image));
return((MagickOffsetType) ReadBlobMSBLong(image));
}
static inline MagickSizeType GetPSDSize(PSDInfo *psd_info,Image *image)
{
if (psd_info->version == 1)
return((MagickSizeType) ReadBlobMSBLong(image));
return((MagickSizeType) ReadBlobMSBLongLong(image));
}
static inline ssize_t MagickAbsoluteValue(const ssize_t x)
{
if (x < 0)
return(-x);
return(x);
}
static const char *ModeToString(PSDImageType type)
{
switch (type)
{
case BitmapMode: return "Bitmap";
case GrayscaleMode: return "Grayscale";
case IndexedMode: return "Indexed";
case RGBMode: return "RGB";
case CMYKMode: return "CMYK";
case MultichannelMode: return "Multichannel";
case DuotoneMode: return "Duotone";
case LabMode: return "L*A*B";
default: return "unknown";
}
}
static MagickBooleanType ParseImageResourceBlocks(Image *image,
const unsigned char *blocks,size_t length)
{
const unsigned char
*p;
StringInfo
*profile;
unsigned int
count,
long_sans;
unsigned short
id,
short_sans;
if (length < 16)
return(MagickFalse);
profile=BlobToStringInfo((const void *) NULL,length);
SetStringInfoDatum(profile,blocks);
(void) SetImageProfile(image,"8bim",profile);
profile=DestroyStringInfo(profile);
for (p=blocks; (p >= blocks) && (p < (blocks+length-16)); )
{
if (LocaleNCompare((const char *) p,"8BIM",4) != 0)
break;
p=PushLongPixel(MSBEndian,p,&long_sans);
p=PushShortPixel(MSBEndian,p,&id);
p=PushShortPixel(MSBEndian,p,&short_sans);
p=PushLongPixel(MSBEndian,p,&count);
switch (id)
{
case 0x03ed:
{
char
value[MaxTextExtent];
unsigned short
resolution;
/*
Resolution info.
*/
p=PushShortPixel(MSBEndian,p,&resolution);
image->x_resolution=(double) resolution;
(void) FormatLocaleString(value,MaxTextExtent,"%g",image->x_resolution);
(void) SetImageProperty(image,"tiff:XResolution",value);
p=PushShortPixel(MSBEndian,p,&short_sans);
p=PushShortPixel(MSBEndian,p,&short_sans);
p=PushShortPixel(MSBEndian,p,&short_sans);
p=PushShortPixel(MSBEndian,p,&resolution);
image->y_resolution=(double) resolution;
(void) FormatLocaleString(value,MaxTextExtent,"%g",image->y_resolution);
(void) SetImageProperty(image,"tiff:YResolution",value);
p=PushShortPixel(MSBEndian,p,&short_sans);
p=PushShortPixel(MSBEndian,p,&short_sans);
p=PushShortPixel(MSBEndian,p,&short_sans);
image->units=PixelsPerInchResolution;
break;
}
default:
{
p+=count;
break;
}
}
if ((count & 0x01) != 0)
p++;
}
return(MagickTrue);
}
static CompositeOperator PSDBlendModeToCompositeOperator(const char *mode)
{
if (mode == (const char *) NULL)
return(OverCompositeOp);
if (LocaleNCompare(mode,"norm",4) == 0)
return(OverCompositeOp);
if (LocaleNCompare(mode,"mul ",4) == 0)
return(MultiplyCompositeOp);
if (LocaleNCompare(mode,"diss",4) == 0)
return(DissolveCompositeOp);
if (LocaleNCompare(mode,"diff",4) == 0)
return(DifferenceCompositeOp);
if (LocaleNCompare(mode,"dark",4) == 0)
return(DarkenCompositeOp);
if (LocaleNCompare(mode,"lite",4) == 0)
return(LightenCompositeOp);
if (LocaleNCompare(mode,"hue ",4) == 0)
return(HueCompositeOp);
if (LocaleNCompare(mode,"sat ",4) == 0)
return(SaturateCompositeOp);
if (LocaleNCompare(mode,"colr",4) == 0)
return(ColorizeCompositeOp);
if (LocaleNCompare(mode,"lum ",4) == 0)
return(LuminizeCompositeOp);
if (LocaleNCompare(mode,"scrn",4) == 0)
return(ScreenCompositeOp);
if (LocaleNCompare(mode,"over",4) == 0)
return(OverlayCompositeOp);
if (LocaleNCompare(mode,"hLit",4) == 0)
return(OverCompositeOp);
if (LocaleNCompare(mode,"sLit",4) == 0)
return(OverCompositeOp);
if (LocaleNCompare(mode,"smud",4) == 0)
return(OverCompositeOp);
if (LocaleNCompare(mode,"div ",4) == 0)
return(OverCompositeOp);
if (LocaleNCompare(mode,"idiv",4) == 0)
return(OverCompositeOp);
return(OverCompositeOp);
}
static MagickBooleanType ReadPSDLayer(Image *image,const size_t channels,
const ssize_t type,const MagickOffsetType *offsets,ExceptionInfo *exception)
{
ColorspaceType
colorspace;
Quantum
pixel;
register const unsigned char
*p;
register IndexPacket
*indexes;
register PixelPacket
*q;
register ssize_t
x;
size_t
packet_size;
ssize_t
count,
y;
unsigned char
*compact_pixels,
*pixels;
unsigned short
nibble;
packet_size=1;
if (image->storage_class == PseudoClass)
{
if (image->colors > 256)
packet_size++;
else
if (image->depth > 8)
packet_size++;
}
else
if (image->depth > 8)
packet_size++;
pixels=(unsigned char *) AcquireQuantumMemory(image->columns+256,packet_size*
sizeof(*pixels));
if (pixels == (unsigned char *) NULL)
ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
image->filename);
(void) ResetMagickMemory(pixels,0,image->columns*packet_size*sizeof(*pixels));
compact_pixels=(unsigned char *) NULL;
if (image->compression == RLECompression)
{
size_t
length;
length=0;
for (y=0; y < (ssize_t) image->rows; y++)
if ((MagickOffsetType) length < offsets[y])
length=(size_t) offsets[y];
compact_pixels=(unsigned char *) AcquireQuantumMemory(length+256,
sizeof(*pixels));
if (compact_pixels == (unsigned char *) NULL)
ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
image->filename);
(void) ResetMagickMemory(compact_pixels,0,length*sizeof(*compact_pixels));
}
colorspace=image->colorspace;
for (y=0; y < (ssize_t) image->rows; y++)
{
if (image->depth == 1)
{
if (image->compression != RLECompression)
count=ReadBlob(image,(image->columns+7)/8,pixels);
else
{
count=ReadBlob(image,(size_t) offsets[y],compact_pixels);
if (count != (ssize_t) offsets[y])
break;
count=DecodePSDPixels((size_t) offsets[y],compact_pixels,
(ssize_t) 123456,(size_t) ((image->columns+7)/8),pixels);
}
if (count < (ssize_t) ((image->columns+7)/8))
break;
}
else
{
if (image->compression != RLECompression)
count=ReadBlob(image,packet_size*image->columns,pixels);
else
{
count=ReadBlob(image,(size_t) offsets[y],compact_pixels);
if (count != (ssize_t) offsets[y])
break;
count=DecodePSDPixels((size_t) offsets[y],compact_pixels,
(ssize_t) image->depth,packet_size*image->columns,pixels);
}
if (count < (ssize_t) (packet_size*image->columns))
break;
}
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
indexes=GetAuthenticIndexQueue(image);
p=pixels;
for (x=0; x < (ssize_t) image->columns; x++)
{
if (packet_size == 1)
pixel=ScaleCharToQuantum(*p++);
else
{
p=PushShortPixel(MSBEndian,p,&nibble);
pixel=ScaleShortToQuantum(nibble);
}
switch (type)
{
case -1:
{
SetPixelAlpha(q,pixel);
break;
}
case 0:
{
SetPixelRed(q,pixel);
if (channels == 1)
{
SetPixelGreen(q,GetPixelRed(q));
SetPixelBlue(q,GetPixelRed(q));
}
if (image->storage_class == PseudoClass)
{
if (packet_size == 1)
SetPixelIndex(indexes+x,ScaleQuantumToChar(pixel));
else
SetPixelIndex(indexes+x,ScaleQuantumToShort(pixel));
SetPixelRGBO(q,image->colormap+(ssize_t)
GetPixelIndex(indexes+x));
if (image->depth == 1)
{
ssize_t
bit,
number_bits;
number_bits=image->columns-x;
if (number_bits > 8)
number_bits=8;
for (bit=0; bit < number_bits; bit++)
{
SetPixelIndex(indexes+x,(((unsigned char) pixel) &
(0x01 << (7-bit))) != 0 ? 0 : 255);
SetPixelRGBO(q,image->colormap+(ssize_t)
GetPixelIndex(indexes+x));
q++;
x++;
}
}
}
break;
}
case 1:
{
if (image->storage_class == PseudoClass)
SetPixelAlpha(q,pixel);
else
SetPixelGreen(q,pixel);
break;
}
case 2:
{
if (image->storage_class == PseudoClass)
SetPixelAlpha(q,pixel);
else
SetPixelBlue(q,pixel);
break;
}
case 3:
{
if (image->colorspace == CMYKColorspace)
SetPixelIndex(indexes+x,pixel);
else
if (image->matte != MagickFalse)
SetPixelAlpha(q,pixel);
break;
}
case 4:
{
if ((IssRGBCompatibleColorspace(image->colorspace) != MagickFalse) &&
(channels > 3))
break;
if (image->matte != MagickFalse)
SetPixelAlpha(q,pixel);
break;
}
default:
break;
}
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
image->colorspace=colorspace;
if (image->compression == RLECompression)
compact_pixels=(unsigned char *) RelinquishMagickMemory(compact_pixels);
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
return(MagickTrue);
}
static Image *ReadPSDImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
char
message[MaxTextExtent],
type[4];
Image
*image;
LayerInfo
*layer_info;
MagickBooleanType
check_background,
status;
MagickOffsetType
offset,
*offsets;
MagickSizeType
combinedlength,
length,
size;
PSDInfo
psd_info;
register PixelPacket
*q;
register ssize_t
i,
x;
size_t
mask_size,
skip_first_alpha = 0;
ssize_t
count,
j,
number_layers,
y;
unsigned char
*data;
unsigned short
compression;
/*
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=AcquireImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
/*
Read image header.
*/
count=ReadBlob(image,4,(unsigned char *) psd_info.signature);
psd_info.version=ReadBlobMSBShort(image);
if ((count == 0) || (LocaleNCompare(psd_info.signature,"8BPS",4) != 0) ||
((psd_info.version != 1) && (psd_info.version != 2)))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
count=ReadBlob(image,6,psd_info.reserved);
psd_info.channels=ReadBlobMSBShort(image);
psd_info.color_channels=psd_info.channels;
if (psd_info.channels > MaxPSDChannels)
ThrowReaderException(CorruptImageError,"MaximumChannelsExceeded");
psd_info.rows=ReadBlobMSBLong(image);
psd_info.columns=ReadBlobMSBLong(image);
if ((psd_info.version == 1) && ((psd_info.rows > 30000) ||
(psd_info.columns > 30000)))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
psd_info.depth=ReadBlobMSBShort(image);
if ((psd_info.depth != 1) && (psd_info.depth != 8) && (psd_info.depth != 16))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
psd_info.mode=ReadBlobMSBShort(image);
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" Image is %.20g x %.20g with channels=%.20g, depth=%.20g, mode=%s",
(double) psd_info.columns,(double) psd_info.rows,(double)
psd_info.channels,(double) psd_info.depth,ModeToString((PSDImageType)
psd_info.mode));
/*
Initialize image.
*/
image->depth=psd_info.depth;
image->columns=psd_info.columns;
image->rows=psd_info.rows;
if (SetImageBackgroundColor(image) == MagickFalse)
{
InheritException(exception,&image->exception);
image=DestroyImageList(image);
return((Image *) NULL);
}
if (psd_info.mode == LabMode)
SetImageColorspace(image,LabColorspace);
psd_info.color_channels=3;
if (psd_info.mode == CMYKMode)
{
psd_info.color_channels=4;
SetImageColorspace(image,CMYKColorspace);
}
if ((psd_info.mode == BitmapMode) || (psd_info.mode == GrayscaleMode) ||
(psd_info.mode == DuotoneMode))
{
psd_info.color_channels=1;
if (AcquireImageColormap(image,256) == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" Image colormap allocated");
SetImageColorspace(image,GRAYColorspace);
}
image->matte=MagickFalse;
/*
Read PSD raster colormap only present for indexed and duotone images.
*/
length=ReadBlobMSBLong(image);
if (length != 0)
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" reading colormap");
if (psd_info.mode == DuotoneMode)
{
/*
Duotone image data; the format of this data is undocumented.
*/
data=(unsigned char *) AcquireQuantumMemory((size_t) length,
sizeof(*data));
if (data == (unsigned char *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
count=ReadBlob(image,(size_t) length,data);
data=(unsigned char *) RelinquishMagickMemory(data);
}
else
{
/*
Read PSD raster colormap.
*/
if (AcquireImageColormap(image,(size_t) (length/3)) == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
for (i=0; i < (ssize_t) image->colors; i++)
image->colormap[i].red=ScaleCharToQuantum((unsigned char)
ReadBlobByte(image));
for (i=0; i < (ssize_t) image->colors; i++)
image->colormap[i].green=ScaleCharToQuantum((unsigned char)
ReadBlobByte(image));
for (i=0; i < (ssize_t) image->colors; i++)
image->colormap[i].blue=ScaleCharToQuantum((unsigned char)
ReadBlobByte(image));
image->matte=MagickFalse;
}
}
length=ReadBlobMSBLong(image);
if (length != 0)
{
unsigned char
*blocks;
/*
Image resources block.
*/
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" reading image resource blocks - %.20g bytes",(double)
((MagickOffsetType) length));
blocks=(unsigned char *) AcquireQuantumMemory((size_t) length,
sizeof(*blocks));
if (blocks == (unsigned char *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
count=ReadBlob(image,(size_t) length,blocks);
if ((count != (ssize_t) length) ||
(LocaleNCompare((char *) blocks,"8BIM",4) != 0))
{
blocks=(unsigned char *) RelinquishMagickMemory(blocks);
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
}
(void) ParseImageResourceBlocks(image,blocks,(size_t) length);
blocks=(unsigned char *) RelinquishMagickMemory(blocks);
}
/*
Layer and mask block.
*/
layer_info=(LayerInfo *) NULL;
number_layers=1;
length=GetPSDSize(&psd_info,image);
if (length == 8)
{
length=ReadBlobMSBLong(image);
length=ReadBlobMSBLong(image);
}
check_background=MagickFalse;
if ((image_info->number_scenes == 1) && (image_info->scene == 0))
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" read composite only");
check_background=MagickTrue;
}
if (length == 0)
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" image has no layers");
}
else
{
offset=TellBlob(image);
size=GetPSDSize(&psd_info,image);
if (size == 0)
{
size_t
quantum;
unsigned long
tag;
/*
Skip layers & masks.
*/
quantum=psd_info.version == 1 ? 4UL : 8UL;
tag=ReadBlobMSBLong(image);
(void) tag;
count=ReadBlob(image,4,(unsigned char *) type);
if ((count == 0) || (LocaleNCompare(type,"8BIM",4) != 0))
{
if (DiscardBlobBytes(image,length-quantum-8) == MagickFalse)
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
}
else
{
count=ReadBlob(image,4,(unsigned char *) type);
if ((count != 0) && (LocaleNCompare(type,"Lr16",4) == 0))
size=GetPSDSize(&psd_info,image);
else
if (DiscardBlobBytes(image,length-quantum-12) == MagickFalse)
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
}
}
if (size != 0)
{
MagickOffsetType
layer_offset;
image->matte=psd_info.channels > psd_info.color_channels ?
MagickTrue : MagickFalse;
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
image->matte ? " image has matte" : " image has no matte");
layer_offset=offset+length;
number_layers=(short) ReadBlobMSBShort(image);
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" image contains %.20g layers",(double) number_layers);
if (number_layers < 0)
{
/*
Weird hack in PSD format to ignore first alpha channel.
*/
skip_first_alpha=1;
(void) skip_first_alpha;
number_layers=MagickAbsoluteValue(number_layers);
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" negative layer count corrected for");
}
layer_info=(LayerInfo *) AcquireQuantumMemory((size_t) number_layers,
sizeof(*layer_info));
if (layer_info == (LayerInfo *) NULL)
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" allocation of LayerInfo failed");
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
(void) ResetMagickMemory(layer_info,0,(size_t) number_layers*
sizeof(*layer_info));
for (i=0; i < number_layers; i++)
{
int
x,
y;
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" reading layer #%.20g",(double) i+1);
layer_info[i].page.y=(int) ReadBlobMSBLong(image);
layer_info[i].page.x=(int) ReadBlobMSBLong(image);
y=(int) ReadBlobMSBLong(image);
x=(int) ReadBlobMSBLong(image);
layer_info[i].page.width=(ssize_t) (x-layer_info[i].page.x);
layer_info[i].page.height=(ssize_t) (y-layer_info[i].page.y);
layer_info[i].channels=ReadBlobMSBShort(image);
if (check_background == MagickTrue)
{
size_t
quantum;
if (layer_info[i].channels == psd_info.color_channels)
image->matte=MagickFalse;
quantum=psd_info.version == 1 ? 4UL : 8UL;
if (DiscardBlobBytes(image,length-20-quantum) == MagickFalse)
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
break;
}
if (layer_info[i].channels > MaxPSDChannels)
ThrowReaderException(CorruptImageError,"MaximumChannelsExceeded");
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" offset(%.20g,%.20g), size(%.20g,%.20g), channels=%.20g",
(double) layer_info[i].page.x,(double) layer_info[i].page.y,
(double) layer_info[i].page.height,(double)
layer_info[i].page.width,(double) layer_info[i].channels);
for (j=0; j < (ssize_t) layer_info[i].channels; j++)
{
layer_info[i].channel_info[j].type=(short)
ReadBlobMSBShort(image);
layer_info[i].channel_info[j].size=(size_t)
GetPSDSize(&psd_info,image);
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" channel[%.20g]: type=%.20g, size=%.20g",(double) j,
(double) layer_info[i].channel_info[j].type,
(double) layer_info[i].channel_info[j].size);
}
count=ReadBlob(image,4,(unsigned char *) type);
if ((count == 0) || (LocaleNCompare(type,"8BIM",4) != 0))
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" layer type was %.4s instead of 8BIM", type);
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
}
count=ReadBlob(image,4,(unsigned char *) layer_info[i].blendkey);
layer_info[i].opacity=(Quantum) (QuantumRange-ScaleCharToQuantum(
(unsigned char) ReadBlobByte(image)));
layer_info[i].clipping=(unsigned char) ReadBlobByte(image);
layer_info[i].flags=(unsigned char) ReadBlobByte(image);
layer_info[i].visible=!(layer_info[i].flags & 0x02);
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" blend=%.4s, opacity=%.20g, clipping=%s, flags=%d, visible=%s",
layer_info[i].blendkey,(double) layer_info[i].opacity,
layer_info[i].clipping ? "true" : "false",layer_info[i].flags,
layer_info[i].visible ? "true" : "false");
(void) ReadBlobByte(image); /* filler */
combinedlength=0;
size=ReadBlobMSBLong(image);
if (size != 0)
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" layer contains additional info");
length=ReadBlobMSBLong(image);
if (length != 0)
{
/*
Layer mask info.
*/
layer_info[i].mask.y=(int) ReadBlobMSBLong(image);
layer_info[i].mask.x=(int) ReadBlobMSBLong(image);
layer_info[i].mask.height=(size_t)
(ReadBlobMSBLong(image)-layer_info[i].mask.y);
layer_info[i].mask.width=(size_t)
(ReadBlobMSBLong(image)-layer_info[i].mask.x);
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" layer mask: offset(%.20g,%.20g), size(%.20g,%.20g), length=%.20g",
(double) layer_info[i].mask.x,(double) layer_info[i].mask.y,
(double) layer_info[i].mask.width,(double)
layer_info[i].mask.height,(double)
((MagickOffsetType) length)-16);
/*
Skip over the rest of the layer mask information.
*/
if (DiscardBlobBytes(image,length-16) == MagickFalse)
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
}
combinedlength+=length+4; /* +4 for length */
length=ReadBlobMSBLong(image);
if (length != 0)
{
/*
Layer blending ranges info.
*/
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" layer blending ranges: length=%.20g",(double)
((MagickOffsetType) length));
/*
We read it, but don't use it...
*/
for (j=0; j < (ssize_t) (length); j+=8)
{
size_t blend_source=ReadBlobMSBLong(image);
size_t blend_dest=ReadBlobMSBLong(image);
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" source(%x), dest(%x)",(unsigned int)
blend_source,(unsigned int) blend_dest);
}
}
combinedlength+=length+4;
/*
Layer name.
*/
length=(size_t) ReadBlobByte(image);
for (j=0; j < (ssize_t) length; j++)
layer_info[i].name[j]=(unsigned char) ReadBlobByte(image);
layer_info[i].name[j]='\0';
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" layer name: %s",layer_info[i].name);
combinedlength+=length+1;
#if 0 /* still in development */
/*
Adjustment layers and other stuff...
*/
{
char alsig[4], alkey[4];
count=ReadBlob(image,4,alsig);
if ((count == 0) || (LocaleNCompare(alsig,"8BIM",4) != 0)) {
if (debug != MagickFalse)
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule()," adjustment layer type was %.4s instead of 8BIM", alsig);
}
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
}
count=ReadBlob(image,4,alkey);
length=ReadBlobMSBLong(image);
if (debug != MagickFalse)
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" adjustment layer key: %.4s, data length=%.20g",
alkey, (double) length);
}
if ( length ) {
for (j=0; j < (ssize_t) (length); j++)
(void) ReadBlobByte(image);
}
}
combinedlength += 12 + length; /* sig, key, length + the actual length*/
#endif
/*
Skip the rest of the variable data until we support it.
*/
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" unsupported data: length=%.20g",(double)
((MagickOffsetType) (size-combinedlength)));
if (DiscardBlobBytes(image,size-combinedlength) == MagickFalse)
ThrowFileException(exception,CorruptImageError,
"UnexpectedEndOfFile",image->filename);
}
/*
Allocate layered image.
*/
layer_info[i].image=CloneImage(image,layer_info[i].page.width,
layer_info[i].page.height == ~0U ? 1 : layer_info[i].page.height,
MagickFalse,&image->exception);
if (layer_info[i].image == (Image *) NULL)
{
for (j=0; j < i; j++)
layer_info[j].image=DestroyImage(layer_info[j].image);
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" allocation of image for layer %.20g failed",(double) i);
ThrowReaderException(ResourceLimitError,
"MemoryAllocationFailed");
}
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" setting up new layer image");
if (image_info->ping != MagickFalse)
(void) SetImageBackgroundColor(layer_info[i].image);
layer_info[i].image->compose=
PSDBlendModeToCompositeOperator(layer_info[i].blendkey);
if (layer_info[i].visible == MagickFalse)
layer_info[i].image->compose=NoCompositeOp;
if (psd_info.mode == CMYKMode)
SetImageColorspace(layer_info[i].image,CMYKColorspace);
if ((psd_info.mode == BitmapMode) ||
(psd_info.mode == GrayscaleMode) ||
(psd_info.mode == DuotoneMode))
SetImageColorspace(layer_info[i].image,GRAYColorspace);
for (j=0; j < (ssize_t) layer_info[i].channels; j++)
if (layer_info[i].channel_info[j].type == -1)
layer_info[i].image->matte=MagickTrue;
/*
Set up some hidden attributes for folks that need them.
*/
(void) FormatLocaleString(message,MaxTextExtent,"%.20gld",
(double) layer_info[i].page.x);
(void) SetImageArtifact(layer_info[i].image,"psd:layer.x",message);
(void) FormatLocaleString(message,MaxTextExtent,"%.20g",
(double) layer_info[i].page.y);
(void) SetImageArtifact(layer_info[i].image,"psd:layer.y",message);
(void) FormatLocaleString(message,MaxTextExtent,"%.20g",
(double) layer_info[i].opacity);
(void) SetImageArtifact(layer_info[i].image,"psd:layer.opacity",
message);
(void) SetImageProperty(layer_info[i].image,"label",(char *)
layer_info[i].name);
}
if (check_background == MagickFalse)
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" reading image data for layers");
/*
Read pixel data for each layer.
*/
for (i=0; i < number_layers; i++)
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" reading data for layer %.20g",(double) i);
for (j=0; j < (ssize_t) layer_info[i].channels; j++)
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" reading data for channel %.20g",(double) j);
#if 1
if (layer_info[i].channel_info[j].size <= (2*layer_info[i].image->rows))
{
ssize_t
k;
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" layer data is empty");
/*
A layer without data.
*/
for (k=0; k < (ssize_t) layer_info[i].channel_info[j].size; k++)
(void) ReadBlobByte(layer_info[i].image);
continue;
}
#endif
offsets=(MagickOffsetType *) NULL;
layer_info[i].image->compression=NoCompression;
compression=ReadBlobMSBShort(layer_info[i].image);
if ((layer_info[i].page.height != 0) &&
(layer_info[i].page.width != 0))
{
if (compression == 1)
{
/*
Read RLE compressed data.
*/
layer_info[i].image->compression=RLECompression;
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" layer data is RLE compressed");
offsets=(MagickOffsetType *) AcquireQuantumMemory(
layer_info[i].image->rows,sizeof(*offsets));
if (offsets == (MagickOffsetType *) NULL)
ThrowReaderException(ResourceLimitError,
"MemoryAllocationFailed");
for (y=0; y < (ssize_t) layer_info[i].image->rows; y++)
offsets[y]=GetPSDOffset(&psd_info,
layer_info[i].image);
}
status=ReadPSDLayer(layer_info[i].image,
layer_info[i].channels,
layer_info[i].channel_info[j].type,offsets,exception);
if (compression == 1)
offsets=(MagickOffsetType *) RelinquishMagickMemory(
offsets);
if (status == MagickFalse)
break;
}
}
if (layer_info[i].opacity != OpaqueOpacity)
{
/*
Correct for opacity level.
*/
for (y=0; y < (ssize_t) layer_info[i].image->rows; y++)
{
q=GetAuthenticPixels(layer_info[i].image,0,y,
layer_info[i].image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
for (x=0; x < (ssize_t) layer_info[i].image->columns; x++)
{
q->opacity=(Quantum) (QuantumRange-(Quantum)
(QuantumScale*((QuantumRange-q->opacity)*
(QuantumRange-layer_info[i].opacity))));
q++;
}
if (SyncAuthenticPixels(layer_info[i].image,exception) == MagickFalse)
break;
}
}
if (layer_info[i].image->colorspace == CMYKColorspace)
(void) NegateImage(layer_info[i].image,MagickFalse);
status=SetImageProgress(image,LoadImagesTag,i,(MagickSizeType)
number_layers);
if (status == MagickFalse)
break;
}
/* added by palf -> invisible group layer make layer of this group
invisible I consider that all layer with width and height null
are layer for group layer */
{
short inside_layer = 0;
short layer_visible = 0;
for (i=number_layers-1; i >=0; i--)
{
if ((layer_info[i].page.width == 0) ||
(layer_info[i].page.height == 0))
{
if (inside_layer == 0)
{
inside_layer=1;
layer_visible=(short int) layer_info[i].visible;
}
else
{
inside_layer = 0;
}
}
else
if ((inside_layer == 1) && (layer_visible == 0))
{
layer_info[i].visible=(unsigned char) layer_visible;
layer_info[i].image->compose=NoCompositeOp;
}
}
}
/* added by palf -> suppression of empty layer */
/* I consider that all layer with width and height null are layer
for group layer */
for (i=0; i < number_layers; i++)
{
if ((layer_info[i].page.width == 0) ||
(layer_info[i].page.height == 0))
{
if (layer_info[i].image != (Image *) NULL)
layer_info[i].image=DestroyImage(layer_info[i].image);
for (j=i; j < number_layers - 1; j++)
layer_info[j] = layer_info[j+1];
number_layers--;
i--;
}
}
mask_size = ReadBlobMSBLong(image); /* ignore global mask size */
(void) mask_size;
if (number_layers > 0)
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" putting layers into image list");
for (i=0; i < number_layers; i++)
{
if (i > 0)
layer_info[i].image->previous=layer_info[i-1].image;
if (i < (number_layers-1))
layer_info[i].image->next=layer_info[i+1].image;
layer_info[i].image->page=layer_info[i].page;
}
image->next=layer_info[0].image;
layer_info[0].image->previous=image;
layer_info=(LayerInfo *) RelinquishMagickMemory(layer_info);
}
layer_offset-=TellBlob(image);
offset=SeekBlob(image,layer_offset,SEEK_CUR);
}
}
}
/*
Read the precombined layer, present for PSD < 4 compatibility
*/
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
" reading the precombined layer");
offsets=(MagickOffsetType *) NULL;
image->compression=NoCompression;
compression=ReadBlobMSBShort(image);
if (compression == 1)
{
/*
Read Packbit encoded pixel data as separate planes.
*/
image->compression=RLECompression;
offsets=(MagickOffsetType *) AcquireQuantumMemory(image->rows,
psd_info.channels*sizeof(*offsets));
if (offsets == (MagickOffsetType *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
for (i=0; i < (ssize_t) (image->rows*psd_info.channels); i++)
offsets[i]=GetPSDOffset(&psd_info,image);
}
for (i=0; i < (ssize_t) psd_info.channels; i++)
{
status=ReadPSDLayer(image,psd_info.channels,i,offsets+i*image->rows,
exception);
if (status == MagickFalse)
break;
status=SetImageProgress(image,LoadImagesTag,i,psd_info.channels);
if (status == MagickFalse)
break;
}
if (compression == 1)
offsets=(MagickOffsetType *) RelinquishMagickMemory(offsets);
if (image->colorspace == CMYKColorspace)
(void) NegateImage(image,MagickFalse);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e g i s t e r P S D I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RegisterPSDImage() adds properties for the PSD 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 RegisterPSDImage method is:
%
% size_t RegisterPSDImage(void)
%
*/
ModuleExport size_t RegisterPSDImage(void)
{
MagickInfo
*entry;
entry=SetMagickInfo("PSB");
entry->decoder=(DecodeImageHandler *) ReadPSDImage;
entry->encoder=(EncodeImageHandler *) WritePSDImage;
entry->magick=(IsImageFormatHandler *) IsPSD;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("Adobe Large Document Format");
entry->module=ConstantString("PSD");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("PSD");
entry->decoder=(DecodeImageHandler *) ReadPSDImage;
entry->encoder=(EncodeImageHandler *) WritePSDImage;
entry->magick=(IsImageFormatHandler *) IsPSD;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("Adobe Photoshop bitmap");
entry->module=ConstantString("PSD");
(void) RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n r e g i s t e r P S D I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% UnregisterPSDImage() removes format registrations made by the
% PSD module from the list of supported formats.
%
% The format of the UnregisterPSDImage method is:
%
% UnregisterPSDImage(void)
%
*/
ModuleExport void UnregisterPSDImage(void)
{
(void) UnregisterMagickInfo("PSB");
(void) UnregisterMagickInfo("PSD");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e P S D I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% WritePSDImage() writes an image in the Adobe Photoshop encoded image format.
%
% The format of the WritePSDImage method is:
%
% MagickBooleanType WritePSDImage(const ImageInfo *image_info,Image *image)
%
% A description of each parameter follows.
%
% o image_info: the image info.
%
% o image: The image.
%
*/
static inline ssize_t SetPSDOffset(const PSDInfo *psd_info,Image *image,
const size_t offset)
{
if (psd_info->version == 1)
return(WriteBlobMSBShort(image,(unsigned short) offset));
return(WriteBlobMSBLong(image,(unsigned short) offset));
}
static inline ssize_t SetPSDSize(const PSDInfo *psd_info,Image *image,
const MagickSizeType size)
{
if (psd_info->version == 1)
return(WriteBlobMSBLong(image,(unsigned int) size));
return(WriteBlobMSBLongLong(image,size));
}
static size_t PSDPackbitsEncodeImage(Image *image,const size_t length,
const unsigned char *pixels,unsigned char *compact_pixels)
{
int
count;
register ssize_t
i,
j;
register unsigned char
*q;
unsigned char
*packbits;
/*
Compress pixels with Packbits encoding.
*/
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
assert(pixels != (unsigned char *) NULL);
packbits=(unsigned char *) AcquireQuantumMemory(128UL,sizeof(*packbits));
if (packbits == (unsigned char *) NULL)
ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
image->filename);
q=compact_pixels;
for (i=(ssize_t) length; i != 0; )
{
switch (i)
{
case 1:
{
i--;
*q++=(unsigned char) 0;
*q++=(*pixels);
break;
}
case 2:
{
i-=2;
*q++=(unsigned char) 1;
*q++=(*pixels);
*q++=pixels[1];
break;
}
case 3:
{
i-=3;
if ((*pixels == *(pixels+1)) && (*(pixels+1) == *(pixels+2)))
{
*q++=(unsigned char) ((256-3)+1);
*q++=(*pixels);
break;
}
*q++=(unsigned char) 2;
*q++=(*pixels);
*q++=pixels[1];
*q++=pixels[2];
break;
}
default:
{
if ((*pixels == *(pixels+1)) && (*(pixels+1) == *(pixels+2)))
{
/*
Packed run.
*/
count=3;
while (((ssize_t) count < i) && (*pixels == *(pixels+count)))
{
count++;
if (count >= 127)
break;
}
i-=count;
*q++=(unsigned char) ((256-count)+1);
*q++=(*pixels);
pixels+=count;
break;
}
/*
Literal run.
*/
count=0;
while ((*(pixels+count) != *(pixels+count+1)) ||
(*(pixels+count+1) != *(pixels+count+2)))
{
packbits[count+1]=pixels[count];
count++;
if (((ssize_t) count >= (i-3)) || (count >= 127))
break;
}
i-=count;
*packbits=(unsigned char) (count-1);
for (j=0; j <= (ssize_t) count; j++)
*q++=packbits[j];
pixels+=count;
break;
}
}
}
*q++=(unsigned char) 128; /* EOD marker */
packbits=(unsigned char *) RelinquishMagickMemory(packbits);
return((size_t) (q-compact_pixels));
}
static void WritePackbitsLength(const PSDInfo *psd_info,
const ImageInfo *image_info,Image *image,Image *next_image,
unsigned char *compact_pixels,const QuantumType quantum_type)
{
QuantumInfo
*quantum_info;
register const PixelPacket
*p;
size_t
length,
packet_size;
ssize_t
y;
unsigned char
*pixels;
if (next_image->depth > 8)
next_image->depth=16;
packet_size=next_image->depth > 8UL ? 2UL : 1UL;
(void) packet_size;
quantum_info=AcquireQuantumInfo(image_info,image);
pixels=GetQuantumPixels(quantum_info);
for (y=0; y < (ssize_t) next_image->rows; y++)
{
p=GetVirtualPixels(next_image,0,y,next_image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
length=ExportQuantumPixels(next_image,(CacheView *) NULL,quantum_info,
quantum_type,pixels,&image->exception);
length=PSDPackbitsEncodeImage(image,length,pixels,compact_pixels);
(void) SetPSDOffset(psd_info,image,length);
}
quantum_info=DestroyQuantumInfo(quantum_info);
}
static void WriteOneChannel(const PSDInfo *psd_info,const ImageInfo *image_info,
Image *image,Image *next_image,unsigned char *compact_pixels,
const QuantumType quantum_type,const MagickBooleanType compression_flag)
{
int
y;
MagickBooleanType
monochrome;
QuantumInfo
*quantum_info;
register const PixelPacket
*p;
register ssize_t
i;
size_t
length,
packet_size;
unsigned char
*pixels;
(void) psd_info;
if ((compression_flag != MagickFalse) &&
(next_image->compression != RLECompression))
(void) WriteBlobMSBShort(image,0);
if (next_image->depth > 8)
next_image->depth=16;
monochrome=IsMonochromeImage(image,&image->exception) && (image->depth == 1)
? MagickTrue : MagickFalse;
packet_size=next_image->depth > 8UL ? 2UL : 1UL;
(void) packet_size;
quantum_info=AcquireQuantumInfo(image_info,image);
pixels=GetQuantumPixels(quantum_info);
for (y=0; y < (ssize_t) next_image->rows; y++)
{
p=GetVirtualPixels(next_image,0,y,next_image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
length=ExportQuantumPixels(next_image,(CacheView *) NULL,quantum_info,
quantum_type,pixels,&image->exception);
if (monochrome != MagickFalse)
for (i=0; i < (ssize_t) length; i++)
pixels[i]=(~pixels[i]);
if (next_image->compression != RLECompression)
(void) WriteBlob(image,length,pixels);
else
{
length=PSDPackbitsEncodeImage(image,length,pixels,compact_pixels);
(void) WriteBlob(image,length,compact_pixels);
}
}
quantum_info=DestroyQuantumInfo(quantum_info);
}
static MagickBooleanType WriteImageChannels(const PSDInfo *psd_info,
const ImageInfo *image_info,Image *image,Image *next_image,
const MagickBooleanType separate)
{
int
i;
size_t
channels,
packet_size;
unsigned char
*compact_pixels;
/*
Write uncompressed pixels as separate planes.
*/
channels=1;
packet_size=next_image->depth > 8UL ? 2UL : 1UL;
compact_pixels=(unsigned char *) NULL;
if (next_image->compression == RLECompression)
{
compact_pixels=(unsigned char *) AcquireQuantumMemory(2*channels*
next_image->columns,packet_size*sizeof(*compact_pixels));
if (compact_pixels == (unsigned char *) NULL)
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
}
i=0;
if (IsGrayImage(next_image,&next_image->exception) != MagickFalse)
{
if (next_image->compression == RLECompression)
{
/*
Packbits compression.
*/
(void) WriteBlobMSBShort(image,1);
WritePackbitsLength(psd_info,image_info,image,next_image,
compact_pixels,GrayQuantum);
if (next_image->matte != MagickFalse)
WritePackbitsLength(psd_info,image_info,image,next_image,
compact_pixels,AlphaQuantum);
}
WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
GrayQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
MagickFalse);
if (next_image->matte != MagickFalse)
WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
AlphaQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
MagickFalse);
(void) SetImageProgress(image,SaveImagesTag,0,1);
}
else
if (next_image->storage_class == PseudoClass)
{
if (next_image->compression == RLECompression)
{
/*
Packbits compression.
*/
(void) WriteBlobMSBShort(image,1);
WritePackbitsLength(psd_info,image_info,image,next_image,
compact_pixels,IndexQuantum);
if (next_image->matte != MagickFalse)
WritePackbitsLength(psd_info,image_info,image,next_image,
compact_pixels,AlphaQuantum);
}
WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
IndexQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
MagickFalse);
if (next_image->matte != MagickFalse)
WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
AlphaQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
MagickFalse);
(void) SetImageProgress(image,SaveImagesTag,0,1);
}
else
{
if (next_image->colorspace == CMYKColorspace)
(void) NegateImage(next_image,MagickFalse);
if (next_image->compression == RLECompression)
{
/*
Packbits compression.
*/
(void) WriteBlobMSBShort(image,1);
WritePackbitsLength(psd_info,image_info,image,next_image,
compact_pixels,RedQuantum);
WritePackbitsLength(psd_info,image_info,image,next_image,
compact_pixels,GreenQuantum);
WritePackbitsLength(psd_info,image_info,image,next_image,
compact_pixels,BlueQuantum);
if (next_image->colorspace == CMYKColorspace)
WritePackbitsLength(psd_info,image_info,image,next_image,
compact_pixels,BlackQuantum);
if (next_image->matte != MagickFalse)
WritePackbitsLength(psd_info,image_info,image,next_image,
compact_pixels,AlphaQuantum);
}
(void) SetImageProgress(image,SaveImagesTag,0,6);
WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
RedQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
MagickFalse);
(void) SetImageProgress(image,SaveImagesTag,1,6);
WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
GreenQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
MagickFalse);
(void) SetImageProgress(image,SaveImagesTag,2,6);
WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
BlueQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
MagickFalse);
(void) SetImageProgress(image,SaveImagesTag,3,6);
if (next_image->colorspace == CMYKColorspace)
WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
BlackQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
MagickFalse);
(void) SetImageProgress(image,SaveImagesTag,4,6);
if (next_image->matte != MagickFalse)
WriteOneChannel(psd_info,image_info,image,next_image,compact_pixels,
AlphaQuantum,(i++ == 0) || (separate != MagickFalse) ? MagickTrue :
MagickFalse);
(void) SetImageProgress(image,SaveImagesTag,5,6);
if (next_image->colorspace == CMYKColorspace)
(void) NegateImage(next_image,MagickFalse);
}
if (next_image->compression == RLECompression)
compact_pixels=(unsigned char *) RelinquishMagickMemory(compact_pixels);
return(MagickTrue);
}
static void WritePascalString(Image* inImage,const char *inString,int inPad)
{
size_t
length;
register ssize_t
i;
/*
Max length is 255.
*/
length=(strlen(inString) > 255UL ) ? 255UL : strlen(inString);
if (length == 0)
(void) WriteBlobByte(inImage,0);
else
{
(void) WriteBlobByte(inImage,(unsigned char) length);
(void) WriteBlob(inImage, length, (const unsigned char *) inString);
}
length++;
if ((length % inPad) == 0)
return;
for (i=0; i < (ssize_t) (inPad-(length % inPad)); i++)
(void) WriteBlobByte(inImage,0);
}
static void WriteResolutionResourceBlock(Image *image)
{
double
x_resolution,
y_resolution;
unsigned short
units;
x_resolution=65536.0*image->x_resolution+0.5;
y_resolution=65536.0*image->y_resolution+0.5;
units=1;
if (image->units == PixelsPerCentimeterResolution)
{
x_resolution=2.54*65536.0*image->x_resolution*0.5;
y_resolution=2.54*65536.0*image->y_resolution+0.5;
units=2;
}
(void) WriteBlob(image,4,(const unsigned char *) "8BIM");
(void) WriteBlobMSBShort(image,0x03ED);
(void) WriteBlobMSBShort(image,0);
(void) WriteBlobMSBLong(image,16); /* resource size */
(void) WriteBlobMSBLong(image,(unsigned int) (x_resolution+0.5));
(void) WriteBlobMSBShort(image,units); /* horizontal resolution unit */
(void) WriteBlobMSBShort(image,units); /* width unit */
(void) WriteBlobMSBLong(image,(unsigned int) (y_resolution+0.5));
(void) WriteBlobMSBShort(image,units); /* vertical resolution unit */
(void) WriteBlobMSBShort(image,units); /* height unit */
}
static void RemoveICCProfileFromResourceBlock(StringInfo *bim_profile)
{
register const unsigned char
*p;
size_t
length;
unsigned char
*datum;
unsigned int
count,
long_sans;
unsigned short
id,
short_sans;
length=GetStringInfoLength(bim_profile);
if (length < 16)
return;
datum=GetStringInfoDatum(bim_profile);
for (p=datum; (p >= datum) && (p < (datum+length-16)); )
{
register unsigned char
*q;
q=(unsigned char *) p;
if (LocaleNCompare((const char *) p,"8BIM",4) != 0)
break;
p=PushLongPixel(MSBEndian,p,&long_sans);
p=PushShortPixel(MSBEndian,p,&id);
p=PushShortPixel(MSBEndian,p,&short_sans);
p=PushLongPixel(MSBEndian,p,&count);
if (id == 0x0000040f)
{
(void) CopyMagickMemory(q,q+PSDQuantum(count)+12,length-
(PSDQuantum(count)+12)-(q-datum));
SetStringInfoLength(bim_profile,length-(PSDQuantum(count)+12));
break;
}
p+=count;
if ((count & 0x01) != 0)
p++;
}
}
static void RemoveResolutionFromResourceBlock(StringInfo *bim_profile)
{
register const unsigned char
*p;
size_t
length;
unsigned char
*datum;
unsigned int
count,
long_sans;
unsigned short
id,
short_sans;
length=GetStringInfoLength(bim_profile);
if (length < 16)
return;
datum=GetStringInfoDatum(bim_profile);
for (p=datum; (p >= datum) && (p < (datum+length-16)); )
{
register unsigned char
*q;
q=(unsigned char *) p;
if (LocaleNCompare((const char *) p,"8BIM",4) != 0)
break;
p=PushLongPixel(MSBEndian,p,&long_sans);
p=PushShortPixel(MSBEndian,p,&id);
p=PushShortPixel(MSBEndian,p,&short_sans);
p=PushLongPixel(MSBEndian,p,&count);
if ((id == 0x000003ed) && (PSDQuantum(count) < (ssize_t) (length-12)))
{
(void) CopyMagickMemory(q,q+PSDQuantum(count)+12,length-
(PSDQuantum(count)+12)-(q-datum));
SetStringInfoLength(bim_profile,length-(PSDQuantum(count)+12));
break;
}
p+=count;
if ((count & 0x01) != 0)
p++;
}
}
static MagickBooleanType WritePSDImage(const ImageInfo *image_info,Image *image)
{
const char
*property;
const StringInfo
*icc_profile;
Image
*base_image,
*next_image;
MagickBooleanType
status;
PSDInfo
psd_info;
register ssize_t
i;
size_t
channel_size,
channelLength,
layer_count,
layer_info_size,
length,
num_channels,
packet_size,
rounded_layer_info_size;
StringInfo
*bim_profile;
unsigned char
layer_name[4];
/*
Open 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);
packet_size=(size_t) (image->depth > 8 ? 6 : 3);
if (image->matte != MagickFalse)
packet_size+=image->depth > 8 ? 2 : 1;
psd_info.version=1;
if ((LocaleCompare(image_info->magick,"PSB") == 0) ||
(image->columns > 30000) || (image->rows > 30000))
psd_info.version=2;
(void) WriteBlob(image,4,(const unsigned char *) "8BPS");
(void) WriteBlobMSBShort(image,psd_info.version); /* version */
for (i=1; i <= 6; i++)
(void) WriteBlobByte(image, 0); /* 6 bytes of reserved */
if (IsGrayImage(image,&image->exception) != MagickFalse)
num_channels=(image->matte != MagickFalse ? 2UL : 1UL);
else
if (image->storage_class == PseudoClass)
num_channels=(image->matte != MagickFalse ? 2UL : 1UL);
else
{
if (image->colorspace != CMYKColorspace)
num_channels=(image->matte != MagickFalse ? 4UL : 3UL);
else
num_channels=(image->matte != MagickFalse ? 5UL : 4UL);
}
(void) WriteBlobMSBShort(image,(unsigned short) num_channels);
(void) WriteBlobMSBLong(image,(unsigned int) image->rows);
(void) WriteBlobMSBLong(image,(unsigned int) image->columns);
if (IsGrayImage(image,&image->exception) != MagickFalse)
{
MagickBooleanType
monochrome;
/*
Write depth & mode.
*/
monochrome=IsMonochromeImage(image,&image->exception) &&
(image->depth == 1) ? MagickTrue : MagickFalse;
(void) WriteBlobMSBShort(image,(unsigned short)
(monochrome != MagickFalse ? 1 : image->depth > 8 ? 16 : 8));
(void) WriteBlobMSBShort(image,(unsigned short)
(monochrome != MagickFalse ? BitmapMode : GrayscaleMode));
}
else
{
(void) WriteBlobMSBShort(image,(unsigned short) (image->storage_class ==
PseudoClass ? 8 : image->depth > 8 ? 16 : 8));
if (((image_info->colorspace != UndefinedColorspace) ||
(image->colorspace != CMYKColorspace)) &&
(image_info->colorspace != CMYKColorspace))
{
if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)
(void) TransformImageColorspace(image,sRGBColorspace);
(void) WriteBlobMSBShort(image,(unsigned short)
(image->storage_class == PseudoClass ? IndexedMode : RGBMode));
}
else
{
if (image->colorspace != CMYKColorspace)
(void) TransformImageColorspace(image,CMYKColorspace);
(void) WriteBlobMSBShort(image,CMYKMode);
}
}
if ((IsGrayImage(image,&image->exception) != MagickFalse) ||
(image->storage_class == DirectClass) || (image->colors > 256))
(void) WriteBlobMSBLong(image,0);
else
{
/*
Write PSD raster colormap.
*/
(void) WriteBlobMSBLong(image,768);
for (i=0; i < (ssize_t) image->colors; i++)
(void) WriteBlobByte(image,ScaleQuantumToChar(image->colormap[i].red));
for ( ; i < 256; i++)
(void) WriteBlobByte(image,0);
for (i=0; i < (ssize_t) image->colors; i++)
(void) WriteBlobByte(image,ScaleQuantumToChar(
image->colormap[i].green));
for ( ; i < 256; i++)
(void) WriteBlobByte(image,0);
for (i=0; i < (ssize_t) image->colors; i++)
(void) WriteBlobByte(image,ScaleQuantumToChar(image->colormap[i].blue));
for ( ; i < 256; i++)
(void) WriteBlobByte(image,0);
}
/*
Image resource block.
*/
length=28; /* 0x03EB */
bim_profile=(StringInfo *) GetImageProfile(image,"8bim");
icc_profile=GetImageProfile(image,"icc");
if (bim_profile != (StringInfo *) NULL)
{
bim_profile=CloneStringInfo(bim_profile);
if (icc_profile != (StringInfo *) NULL)
RemoveICCProfileFromResourceBlock(bim_profile);
RemoveResolutionFromResourceBlock(bim_profile);
length+=PSDQuantum(GetStringInfoLength(bim_profile));
}
if (icc_profile != (const StringInfo *) NULL)
length+=PSDQuantum(GetStringInfoLength(icc_profile))+12;
(void) WriteBlobMSBLong(image,(unsigned int) length);
WriteResolutionResourceBlock(image);
if (bim_profile != (StringInfo *) NULL)
{
(void) WriteBlob(image,GetStringInfoLength(bim_profile),
GetStringInfoDatum(bim_profile));
bim_profile=DestroyStringInfo(bim_profile);
}
if (icc_profile != (StringInfo *) NULL)
{
(void) WriteBlob(image,4,(const unsigned char *) "8BIM");
(void) WriteBlobMSBShort(image,0x0000040F);
(void) WriteBlobMSBShort(image,0);
(void) WriteBlobMSBLong(image,(unsigned int) GetStringInfoLength(
icc_profile));
(void) WriteBlob(image,GetStringInfoLength(icc_profile),
GetStringInfoDatum(icc_profile));
if ((MagickOffsetType) GetStringInfoLength(icc_profile) !=
PSDQuantum(GetStringInfoLength(icc_profile)))
(void) WriteBlobByte(image,0);
}
layer_count=0;
layer_info_size=2;
base_image=GetNextImageInList(image);
if ((image->matte != MagickFalse) && (base_image == (Image *) NULL))
base_image=image;
next_image=base_image;
while ( next_image != NULL )
{
packet_size=next_image->depth > 8 ? 2UL : 1UL;
if (IsGrayImage(next_image,&image->exception) != MagickFalse)
num_channels=next_image->matte != MagickFalse ? 2UL : 1UL;
else
if (next_image->storage_class == PseudoClass)
num_channels=next_image->matte != MagickFalse ? 2UL : 1UL;
else
if (next_image->colorspace != CMYKColorspace)
num_channels=next_image->matte != MagickFalse ? 4UL : 3UL;
else
num_channels=next_image->matte != MagickFalse ? 5UL : 4UL;
channelLength=(size_t) (next_image->columns*next_image->rows*packet_size+2);
layer_info_size+=(size_t) (4*4+2+num_channels*6+(psd_info.version == 1 ? 8 :
16)+4*1+4+num_channels*channelLength);
property=(const char *) GetImageProperty(next_image,"label");
if (property == (const char *) NULL)
layer_info_size+=16;
else
{
size_t
length;
length=strlen(property);
layer_info_size+=8+length+(4-(length % 4));
}
layer_count++;
next_image=GetNextImageInList(next_image);
}
if (layer_count == 0)
(void) SetPSDSize(&psd_info,image,0);
else
{
CompressionType
compression;
(void) SetPSDSize(&psd_info,image,layer_info_size+
(psd_info.version == 1 ? 8 : 16));
if ((layer_info_size/2) != ((layer_info_size+1)/2))
rounded_layer_info_size=layer_info_size+1;
else
rounded_layer_info_size=layer_info_size;
(void) SetPSDSize(&psd_info,image,rounded_layer_info_size);
(void) WriteBlobMSBShort(image,(unsigned short) layer_count);
layer_count=1;
compression=base_image->compression;
next_image=base_image;
while (next_image != NULL)
{
next_image->compression=NoCompression;
(void) WriteBlobMSBLong(image,(unsigned int) next_image->page.y);
(void) WriteBlobMSBLong(image,(unsigned int) next_image->page.x);
(void) WriteBlobMSBLong(image,(unsigned int) next_image->page.y+
next_image->rows);
(void) WriteBlobMSBLong(image,(unsigned int) next_image->page.x+
next_image->columns);
packet_size=next_image->depth > 8 ? 2UL : 1UL;
channel_size=(unsigned int) ((packet_size*next_image->rows*
next_image->columns)+2);
if ((IsGrayImage(next_image,&image->exception) != MagickFalse) ||
(next_image->storage_class == PseudoClass))
{
(void) WriteBlobMSBShort(image,(unsigned short)
(next_image->matte != MagickFalse ? 2 : 1));
(void) WriteBlobMSBShort(image,0);
(void) SetPSDSize(&psd_info,image,channel_size);
if (next_image->matte != MagickFalse)
{
(void) WriteBlobMSBShort(image,(unsigned short) -1);
(void) SetPSDSize(&psd_info,image,channel_size);
}
}
else
if (next_image->colorspace != CMYKColorspace)
{
(void) WriteBlobMSBShort(image,(unsigned short)
(next_image->matte != MagickFalse ? 4 : 3));
(void) WriteBlobMSBShort(image,0);
(void) SetPSDSize(&psd_info,image,channel_size);
(void) WriteBlobMSBShort(image,1);
(void) SetPSDSize(&psd_info,image,channel_size);
(void) WriteBlobMSBShort(image,2);
(void) SetPSDSize(&psd_info,image,channel_size);
if (next_image->matte!= MagickFalse )
{
(void) WriteBlobMSBShort(image,(unsigned short) -1);
(void) SetPSDSize(&psd_info,image,channel_size);
}
}
else
{
(void) WriteBlobMSBShort(image,(unsigned short)
(next_image->matte ? 5 : 4));
(void) WriteBlobMSBShort(image,0);
(void) SetPSDSize(&psd_info,image,channel_size);
(void) WriteBlobMSBShort(image,1);
(void) SetPSDSize(&psd_info,image,channel_size);
(void) WriteBlobMSBShort(image,2);
(void) SetPSDSize(&psd_info,image,channel_size);
(void) WriteBlobMSBShort(image,3);
(void) SetPSDSize(&psd_info,image,channel_size);
if (next_image->matte)
{
(void) WriteBlobMSBShort(image,(unsigned short) -1);
(void) SetPSDSize(&psd_info,image,channel_size);
}
}
(void) WriteBlob(image,4,(const unsigned char *) "8BIM");
(void) WriteBlob(image,4,(const unsigned char *)
CompositeOperatorToPSDBlendMode(next_image->compose));
(void) WriteBlobByte(image,255); /* layer opacity */
(void) WriteBlobByte(image,0);
(void) WriteBlobByte(image,1); /* layer propertys - visible, etc. */
(void) WriteBlobByte(image,0);
property=(const char *) GetImageProperty(next_image,"label");
if (property == (const char *) NULL)
{
(void) WriteBlobMSBLong(image,16);
(void) WriteBlobMSBLong(image,0);
(void) WriteBlobMSBLong(image,0);
(void) FormatLocaleString((char *) layer_name,MaxTextExtent,
"L%06ld",(long) layer_count++);
WritePascalString( image, (char*)layer_name, 4 );
}
else
{
size_t
length;
length=strlen(property);
(void) WriteBlobMSBLong(image,(unsigned int) (length+(4-
(length % 4))+8));
(void) WriteBlobMSBLong(image,0);
(void) WriteBlobMSBLong(image,0);
WritePascalString(image,property,4);
}
next_image=GetNextImageInList(next_image);
}
/*
Now the image data!
*/
next_image=base_image;
while (next_image != NULL)
{
status=WriteImageChannels(&psd_info,image_info,image,next_image,
MagickTrue);
next_image=GetNextImageInList(next_image);
}
(void) WriteBlobMSBLong(image,0); /* user mask data */
base_image->compression=compression;
}
/*
Write composite image.
*/
status=WriteImageChannels(&psd_info,image_info,image,image,MagickFalse);
(void) CloseBlob(image);
return(status);
}