forked from openkylin/imagemagick
1392 lines
48 KiB
C
1392 lines
48 KiB
C
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% IIIII CCCC OOO N N %
|
||
% I C O O NN N %
|
||
% I C O O N N N %
|
||
% I C O O N NN %
|
||
% IIIII CCCC OOO N N %
|
||
% %
|
||
% %
|
||
% Read Microsoft Windows Icon Format %
|
||
% %
|
||
% Software Design %
|
||
% Cristy %
|
||
% July 1992 %
|
||
% %
|
||
% %
|
||
% Copyright 1999-2021 ImageMagick Studio LLC, a non-profit organization %
|
||
% dedicated to making software imaging solutions freely available. %
|
||
% %
|
||
% You may not use this file except in compliance with the License. You may %
|
||
% obtain a copy of the License at %
|
||
% %
|
||
% https://imagemagick.org/script/license.php %
|
||
% %
|
||
% Unless required by applicable law or agreed to in writing, software %
|
||
% distributed under the License is distributed on an "AS IS" BASIS, %
|
||
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
|
||
% See the License for the specific language governing permissions and %
|
||
% limitations under the License. %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
%
|
||
*/
|
||
|
||
/*
|
||
Include declarations.
|
||
*/
|
||
#include "magick/studio.h"
|
||
#include "magick/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/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/monitor.h"
|
||
#include "magick/monitor-private.h"
|
||
#include "magick/nt-base-private.h"
|
||
#include "magick/nt-feature.h"
|
||
#include "magick/option.h"
|
||
#include "magick/pixel-accessor.h"
|
||
#include "magick/quantize.h"
|
||
#include "magick/quantum-private.h"
|
||
#include "magick/static.h"
|
||
#include "magick/string_.h"
|
||
#include "magick/module.h"
|
||
|
||
/*
|
||
Define declarations.
|
||
*/
|
||
#if !defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__MINGW32__)
|
||
#define BI_RGB 0
|
||
#define BI_RLE8 1
|
||
#define BI_BITFIELDS 3
|
||
#endif
|
||
#define MaxIcons 1024
|
||
|
||
/*
|
||
Typedef declarations.
|
||
*/
|
||
typedef struct _IconEntry
|
||
{
|
||
unsigned char
|
||
width,
|
||
height,
|
||
colors,
|
||
reserved;
|
||
|
||
unsigned short int
|
||
planes,
|
||
bits_per_pixel;
|
||
|
||
size_t
|
||
size,
|
||
offset;
|
||
} IconEntry;
|
||
|
||
typedef struct _IconFile
|
||
{
|
||
short
|
||
reserved,
|
||
resource_type,
|
||
count;
|
||
|
||
IconEntry
|
||
directory[MaxIcons];
|
||
} IconFile;
|
||
|
||
typedef struct _IconInfo
|
||
{
|
||
size_t
|
||
file_size,
|
||
ba_offset,
|
||
offset_bits,
|
||
size;
|
||
|
||
ssize_t
|
||
width,
|
||
height;
|
||
|
||
unsigned short
|
||
planes,
|
||
bits_per_pixel;
|
||
|
||
size_t
|
||
compression,
|
||
image_size,
|
||
x_pixels,
|
||
y_pixels,
|
||
number_colors,
|
||
red_mask,
|
||
green_mask,
|
||
blue_mask,
|
||
alpha_mask,
|
||
colors_important;
|
||
|
||
ssize_t
|
||
colorspace;
|
||
} IconInfo;
|
||
|
||
/*
|
||
Forward declaractions.
|
||
*/
|
||
static Image
|
||
*AutoResizeImage(const Image *,const char *,MagickOffsetType *,
|
||
ExceptionInfo *);
|
||
|
||
static MagickBooleanType
|
||
WriteICONImage(const ImageInfo *,Image *);
|
||
|
||
Image *AutoResizeImage(const Image *image,const char *option,
|
||
MagickOffsetType *count,ExceptionInfo *exception)
|
||
{
|
||
#define MAX_SIZES 16
|
||
|
||
char
|
||
*q;
|
||
|
||
const char
|
||
*p;
|
||
|
||
Image
|
||
*resized,
|
||
*images;
|
||
|
||
ssize_t
|
||
i;
|
||
|
||
size_t
|
||
sizes[MAX_SIZES]={256,192,128,96,64,48,40,32,24,16};
|
||
|
||
images=NULL;
|
||
*count=0;
|
||
i=0;
|
||
p=option;
|
||
while (*p != '\0' && i < MAX_SIZES)
|
||
{
|
||
size_t
|
||
size;
|
||
|
||
while ((isspace((int) ((unsigned char) *p)) != 0))
|
||
p++;
|
||
|
||
size=(size_t)strtol(p,&q,10);
|
||
if ((p == q) || (size < 16) || (size > 256))
|
||
return((Image *) NULL);
|
||
|
||
p=q;
|
||
sizes[i++]=size;
|
||
|
||
while ((isspace((int) ((unsigned char) *p)) != 0) || (*p == ','))
|
||
p++;
|
||
}
|
||
|
||
if (i==0)
|
||
i=10;
|
||
*count=i;
|
||
for (i=0; i < *count; i++)
|
||
{
|
||
resized=ResizeImage(image,sizes[i],sizes[i],image->filter,image->blur,
|
||
exception);
|
||
if (resized == (Image *) NULL)
|
||
return(DestroyImageList(images));
|
||
|
||
if (images == (Image *) NULL)
|
||
images=resized;
|
||
else
|
||
AppendImageToList(&images,resized);
|
||
}
|
||
return(images);
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% R e a d I C O N I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% ReadICONImage() reads a Microsoft icon 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 ReadICONImage method is:
|
||
%
|
||
% Image *ReadICONImage(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 *ReadICONImage(const ImageInfo *image_info,
|
||
ExceptionInfo *exception)
|
||
{
|
||
IconFile
|
||
icon_file;
|
||
|
||
IconInfo
|
||
icon_info;
|
||
|
||
Image
|
||
*image;
|
||
|
||
MagickBooleanType
|
||
status;
|
||
|
||
MagickSizeType
|
||
extent;
|
||
|
||
IndexPacket
|
||
*indexes;
|
||
|
||
ssize_t
|
||
i,
|
||
x;
|
||
|
||
PixelPacket
|
||
*q;
|
||
|
||
unsigned char
|
||
*p;
|
||
|
||
size_t
|
||
bit,
|
||
byte,
|
||
bytes_per_line,
|
||
one,
|
||
scanline_pad;
|
||
|
||
ssize_t
|
||
count,
|
||
offset,
|
||
y;
|
||
|
||
/*
|
||
Open image file.
|
||
*/
|
||
assert(image_info != (const ImageInfo *) NULL);
|
||
assert(image_info->signature == MagickCoreSignature);
|
||
(void) LogMagickEvent(CoderEvent,GetMagickModule(),"%s",image_info->filename);
|
||
assert(exception != (ExceptionInfo *) NULL);
|
||
assert(exception->signature == MagickCoreSignature);
|
||
image=AcquireImage(image_info);
|
||
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
||
if (status == MagickFalse)
|
||
{
|
||
image=DestroyImageList(image);
|
||
return((Image *) NULL);
|
||
}
|
||
icon_file.reserved=(short) ReadBlobLSBShort(image);
|
||
icon_file.resource_type=(short) ReadBlobLSBShort(image);
|
||
icon_file.count=(short) ReadBlobLSBShort(image);
|
||
if ((icon_file.reserved != 0) ||
|
||
((icon_file.resource_type != 1) && (icon_file.resource_type != 2)) ||
|
||
(icon_file.count > MaxIcons))
|
||
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
||
extent=0;
|
||
for (i=0; i < icon_file.count; i++)
|
||
{
|
||
icon_file.directory[i].width=(unsigned char) ReadBlobByte(image);
|
||
icon_file.directory[i].height=(unsigned char) ReadBlobByte(image);
|
||
icon_file.directory[i].colors=(unsigned char) ReadBlobByte(image);
|
||
icon_file.directory[i].reserved=(unsigned char) ReadBlobByte(image);
|
||
icon_file.directory[i].planes=(unsigned short) ReadBlobLSBShort(image);
|
||
icon_file.directory[i].bits_per_pixel=(unsigned short)
|
||
ReadBlobLSBShort(image);
|
||
icon_file.directory[i].size=ReadBlobLSBLong(image);
|
||
icon_file.directory[i].offset=ReadBlobLSBLong(image);
|
||
if (EOFBlob(image) != MagickFalse)
|
||
break;
|
||
extent=MagickMax(extent,icon_file.directory[i].size);
|
||
}
|
||
if ((EOFBlob(image) != MagickFalse) || (extent > GetBlobSize(image)))
|
||
ThrowReaderException(CorruptImageError,"UnexpectedEndOfFile");
|
||
one=1;
|
||
for (i=0; i < icon_file.count; i++)
|
||
{
|
||
/*
|
||
Verify Icon identifier.
|
||
*/
|
||
offset=(ssize_t) SeekBlob(image,(MagickOffsetType)
|
||
icon_file.directory[i].offset,SEEK_SET);
|
||
if (offset < 0)
|
||
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
||
icon_info.size=ReadBlobLSBLong(image);
|
||
icon_info.width=(unsigned char) ReadBlobLSBSignedLong(image);
|
||
icon_info.height=(unsigned char) (ReadBlobLSBSignedLong(image)/2);
|
||
icon_info.planes=ReadBlobLSBShort(image);
|
||
icon_info.bits_per_pixel=ReadBlobLSBShort(image);
|
||
if (EOFBlob(image) != MagickFalse)
|
||
{
|
||
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
|
||
image->filename);
|
||
break;
|
||
}
|
||
if (((icon_info.planes == 18505) && (icon_info.bits_per_pixel == 21060)) ||
|
||
(icon_info.size == 0x474e5089))
|
||
{
|
||
Image
|
||
*icon_image;
|
||
|
||
ImageInfo
|
||
*read_info;
|
||
|
||
size_t
|
||
length;
|
||
|
||
unsigned char
|
||
*png;
|
||
|
||
/*
|
||
Icon image encoded as a compressed PNG image.
|
||
*/
|
||
length=icon_file.directory[i].size;
|
||
if ((length < 16) || (~length < 16))
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
png=(unsigned char *) AcquireQuantumMemory(length,sizeof(*png));
|
||
if (png == (unsigned char *) NULL)
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
(void) memcpy(png,"\211PNG\r\n\032\n\000\000\000\015",12);
|
||
png[12]=(unsigned char) icon_info.planes;
|
||
png[13]=(unsigned char) (icon_info.planes >> 8);
|
||
png[14]=(unsigned char) icon_info.bits_per_pixel;
|
||
png[15]=(unsigned char) (icon_info.bits_per_pixel >> 8);
|
||
count=ReadBlob(image,length-16,png+16);
|
||
if (count != (ssize_t) (length-16))
|
||
{
|
||
png=(unsigned char *) RelinquishMagickMemory(png);
|
||
ThrowReaderException(CorruptImageError,
|
||
"InsufficientImageDataInFile");
|
||
}
|
||
read_info=CloneImageInfo(image_info);
|
||
(void) CopyMagickString(read_info->magick,"PNG",MaxTextExtent);
|
||
icon_image=BlobToImage(read_info,png,length,exception);
|
||
read_info=DestroyImageInfo(read_info);
|
||
png=(unsigned char *) RelinquishMagickMemory(png);
|
||
if (icon_image == (Image *) NULL)
|
||
return(DestroyImageList(image));
|
||
DestroyBlob(icon_image);
|
||
icon_image->blob=ReferenceBlob(image->blob);
|
||
ReplaceImageInList(&image,icon_image);
|
||
icon_image->scene=i;
|
||
}
|
||
else
|
||
{
|
||
if (icon_info.bits_per_pixel > 32)
|
||
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
||
icon_info.compression=ReadBlobLSBLong(image);
|
||
icon_info.image_size=ReadBlobLSBLong(image);
|
||
icon_info.x_pixels=ReadBlobLSBLong(image);
|
||
icon_info.y_pixels=ReadBlobLSBLong(image);
|
||
icon_info.number_colors=ReadBlobLSBLong(image);
|
||
if (icon_info.number_colors > GetBlobSize(image))
|
||
ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile");
|
||
icon_info.colors_important=ReadBlobLSBLong(image);
|
||
image->matte=MagickTrue;
|
||
image->columns=(size_t) icon_file.directory[i].width;
|
||
if ((ssize_t) image->columns > icon_info.width)
|
||
image->columns=(size_t) icon_info.width;
|
||
if (image->columns == 0)
|
||
image->columns=256;
|
||
image->rows=(size_t) icon_file.directory[i].height;
|
||
if ((ssize_t) image->rows > icon_info.height)
|
||
image->rows=(size_t) icon_info.height;
|
||
if (image->rows == 0)
|
||
image->rows=256;
|
||
image->depth=icon_info.bits_per_pixel;
|
||
if (image->depth > 16)
|
||
image->depth=8;
|
||
if (image->debug != MagickFalse)
|
||
{
|
||
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
|
||
" scene = %.20g",(double) i);
|
||
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
|
||
" size = %.20g",(double) icon_info.size);
|
||
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
|
||
" width = %.20g",(double) icon_file.directory[i].width);
|
||
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
|
||
" height = %.20g",(double) icon_file.directory[i].height);
|
||
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
|
||
" colors = %.20g",(double ) icon_info.number_colors);
|
||
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
|
||
" planes = %.20g",(double) icon_info.planes);
|
||
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
|
||
" bpp = %.20g",(double) icon_info.bits_per_pixel);
|
||
}
|
||
if ((icon_info.number_colors != 0) || (icon_info.bits_per_pixel <= 16U))
|
||
{
|
||
image->storage_class=PseudoClass;
|
||
image->colors=icon_info.number_colors;
|
||
if ((image->colors == 0) || (image->colors > 256))
|
||
image->colors=one << icon_info.bits_per_pixel;
|
||
}
|
||
if (image->storage_class == PseudoClass)
|
||
{
|
||
ssize_t
|
||
i;
|
||
|
||
unsigned char
|
||
*icon_colormap;
|
||
|
||
/*
|
||
Read Icon raster colormap.
|
||
*/
|
||
if (image->colors > GetBlobSize(image))
|
||
ThrowReaderException(CorruptImageError,
|
||
"InsufficientImageDataInFile");
|
||
if (AcquireImageColormap(image,image->colors) == MagickFalse)
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
icon_colormap=(unsigned char *) AcquireQuantumMemory((size_t)
|
||
image->colors,4UL*sizeof(*icon_colormap));
|
||
if (icon_colormap == (unsigned char *) NULL)
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
count=ReadBlob(image,(size_t) (4*image->colors),icon_colormap);
|
||
if (count != (ssize_t) (4*image->colors))
|
||
{
|
||
icon_colormap=(unsigned char *) RelinquishMagickMemory(
|
||
icon_colormap);
|
||
ThrowReaderException(CorruptImageError,
|
||
"InsufficientImageDataInFile");
|
||
}
|
||
p=icon_colormap;
|
||
for (i=0; i < (ssize_t) image->colors; i++)
|
||
{
|
||
image->colormap[i].blue=(Quantum) ScaleCharToQuantum(*p++);
|
||
image->colormap[i].green=(Quantum) ScaleCharToQuantum(*p++);
|
||
image->colormap[i].red=(Quantum) ScaleCharToQuantum(*p++);
|
||
p++;
|
||
}
|
||
icon_colormap=(unsigned char *) RelinquishMagickMemory(icon_colormap);
|
||
}
|
||
/*
|
||
Convert Icon raster image to pixel packets.
|
||
*/
|
||
if ((image_info->ping != MagickFalse) &&
|
||
(image_info->number_scenes != 0))
|
||
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
|
||
break;
|
||
status=SetImageExtent(image,image->columns,image->rows);
|
||
if (status == MagickFalse)
|
||
{
|
||
InheritException(exception,&image->exception);
|
||
return(DestroyImageList(image));
|
||
}
|
||
bytes_per_line=(((image->columns*icon_info.bits_per_pixel)+31) &
|
||
~31) >> 3;
|
||
(void) bytes_per_line;
|
||
scanline_pad=((((image->columns*icon_info.bits_per_pixel)+31) & ~31)-
|
||
(image->columns*icon_info.bits_per_pixel)) >> 3;
|
||
switch (icon_info.bits_per_pixel)
|
||
{
|
||
case 1:
|
||
{
|
||
/*
|
||
Convert bitmap scanline.
|
||
*/
|
||
for (y=(ssize_t) image->rows-1; y >= 0; y--)
|
||
{
|
||
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
||
if (q == (PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetAuthenticIndexQueue(image);
|
||
for (x=0; x < (ssize_t) (image->columns-7); x+=8)
|
||
{
|
||
byte=(size_t) ReadBlobByte(image);
|
||
for (bit=0; bit < 8; bit++)
|
||
SetPixelIndex(indexes+x+bit,((byte & (0x80 >> bit)) != 0 ?
|
||
0x01 : 0x00));
|
||
}
|
||
if ((image->columns % 8) != 0)
|
||
{
|
||
byte=(size_t) ReadBlobByte(image);
|
||
for (bit=0; bit < (image->columns % 8); bit++)
|
||
SetPixelIndex(indexes+x+bit,((byte & (0x80 >> bit)) != 0 ?
|
||
0x01 : 0x00));
|
||
}
|
||
for (x=0; x < (ssize_t) scanline_pad; x++)
|
||
(void) ReadBlobByte(image);
|
||
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
||
break;
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,LoadImageTag,image->rows-y-1,
|
||
image->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case 4:
|
||
{
|
||
/*
|
||
Read 4-bit Icon scanline.
|
||
*/
|
||
for (y=(ssize_t) image->rows-1; y >= 0; y--)
|
||
{
|
||
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
||
if (q == (PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetAuthenticIndexQueue(image);
|
||
for (x=0; x < ((ssize_t) image->columns-1); x+=2)
|
||
{
|
||
byte=(size_t) ReadBlobByte(image);
|
||
SetPixelIndex(indexes+x,((byte >> 4) & 0xf));
|
||
SetPixelIndex(indexes+x+1,((byte) & 0xf));
|
||
}
|
||
if ((image->columns % 2) != 0)
|
||
{
|
||
byte=(size_t) ReadBlobByte(image);
|
||
SetPixelIndex(indexes+x,((byte >> 4) & 0xf));
|
||
}
|
||
for (x=0; x < (ssize_t) scanline_pad; x++)
|
||
(void) ReadBlobByte(image);
|
||
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
||
break;
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,LoadImageTag,image->rows-y-1,
|
||
image->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case 8:
|
||
{
|
||
/*
|
||
Convert PseudoColor scanline.
|
||
*/
|
||
for (y=(ssize_t) image->rows-1; y >= 0; y--)
|
||
{
|
||
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
||
if (q == (PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetAuthenticIndexQueue(image);
|
||
for (x=0; x < (ssize_t) image->columns; x++)
|
||
{
|
||
byte=(size_t) ReadBlobByte(image);
|
||
SetPixelIndex(indexes+x,byte);
|
||
}
|
||
for (x=0; x < (ssize_t) scanline_pad; x++)
|
||
(void) ReadBlobByte(image);
|
||
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
||
break;
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,LoadImageTag,image->rows-y-1,
|
||
image->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case 16:
|
||
{
|
||
/*
|
||
Convert PseudoColor scanline.
|
||
*/
|
||
for (y=(ssize_t) image->rows-1; y >= 0; y--)
|
||
{
|
||
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
||
if (q == (PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetAuthenticIndexQueue(image);
|
||
for (x=0; x < (ssize_t) image->columns; x++)
|
||
{
|
||
byte=(size_t) ReadBlobByte(image);
|
||
byte|=((size_t) ReadBlobByte(image) << 8);
|
||
SetPixelIndex(indexes+x,byte);
|
||
}
|
||
for (x=0; x < (ssize_t) scanline_pad; x++)
|
||
(void) ReadBlobByte(image);
|
||
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
||
break;
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,LoadImageTag,image->rows-y-1,
|
||
image->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case 24:
|
||
case 32:
|
||
{
|
||
/*
|
||
Convert DirectColor scanline.
|
||
*/
|
||
for (y=(ssize_t) image->rows-1; y >= 0; y--)
|
||
{
|
||
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
||
if (q == (PixelPacket *) NULL)
|
||
break;
|
||
for (x=0; x < (ssize_t) image->columns; x++)
|
||
{
|
||
SetPixelBlue(q,ScaleCharToQuantum((unsigned char)
|
||
ReadBlobByte(image)));
|
||
SetPixelGreen(q,ScaleCharToQuantum((unsigned char)
|
||
ReadBlobByte(image)));
|
||
SetPixelRed(q,ScaleCharToQuantum((unsigned char)
|
||
ReadBlobByte(image)));
|
||
if (icon_info.bits_per_pixel == 32)
|
||
SetPixelAlpha(q,ScaleCharToQuantum((unsigned char)
|
||
ReadBlobByte(image)));
|
||
q++;
|
||
}
|
||
if (icon_info.bits_per_pixel == 24)
|
||
for (x=0; x < (ssize_t) scanline_pad; x++)
|
||
(void) ReadBlobByte(image);
|
||
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
||
break;
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,LoadImageTag,image->rows-y-1,
|
||
image->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
default:
|
||
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
||
}
|
||
if ((image_info->ping == MagickFalse) &&
|
||
(icon_info.bits_per_pixel <= 16))
|
||
(void) SyncImage(image);
|
||
if (icon_info.bits_per_pixel != 32)
|
||
{
|
||
/*
|
||
Read the ICON alpha mask.
|
||
*/
|
||
image->storage_class=DirectClass;
|
||
for (y=(ssize_t) image->rows-1; y >= 0; y--)
|
||
{
|
||
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
|
||
if (q == (PixelPacket *) NULL)
|
||
break;
|
||
for (x=0; x < ((ssize_t) image->columns-7); x+=8)
|
||
{
|
||
byte=(size_t) ReadBlobByte(image);
|
||
for (bit=0; bit < 8; bit++)
|
||
SetPixelOpacity(q+x+bit,(((byte & (0x80 >> bit)) != 0) ?
|
||
TransparentOpacity : OpaqueOpacity));
|
||
}
|
||
if ((image->columns % 8) != 0)
|
||
{
|
||
byte=(size_t) ReadBlobByte(image);
|
||
for (bit=0; bit < (image->columns % 8); bit++)
|
||
SetPixelOpacity(q+x+bit,(((byte & (0x80 >> bit)) != 0) ?
|
||
TransparentOpacity : OpaqueOpacity));
|
||
}
|
||
if ((image->columns % 32) != 0)
|
||
for (x=0; x < (ssize_t) ((32-(image->columns % 32))/8); x++)
|
||
(void) ReadBlobByte(image);
|
||
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
if (EOFBlob(image) != MagickFalse)
|
||
{
|
||
ThrowFileException(exception,CorruptImageError,
|
||
"UnexpectedEndOfFile",image->filename);
|
||
break;
|
||
}
|
||
}
|
||
/*
|
||
Proceed to next image.
|
||
*/
|
||
if (image_info->number_scenes != 0)
|
||
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
|
||
break;
|
||
if (i < (ssize_t) (icon_file.count-1))
|
||
{
|
||
/*
|
||
Allocate next image structure.
|
||
*/
|
||
AcquireNextImage(image_info,image);
|
||
if (GetNextImageInList(image) == (Image *) NULL)
|
||
{
|
||
status=MagickFalse;
|
||
break;
|
||
}
|
||
image=SyncNextImageInList(image);
|
||
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
|
||
GetBlobSize(image));
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
(void) CloseBlob(image);
|
||
if (status == MagickFalse)
|
||
return(DestroyImageList(image));
|
||
return(GetFirstImageInList(image));
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% R e g i s t e r I C O N I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% RegisterICONImage() adds attributes for the Icon 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 RegisterICONImage method is:
|
||
%
|
||
% size_t RegisterICONImage(void)
|
||
%
|
||
*/
|
||
ModuleExport size_t RegisterICONImage(void)
|
||
{
|
||
MagickInfo
|
||
*entry;
|
||
|
||
entry=SetMagickInfo("CUR");
|
||
entry->decoder=(DecodeImageHandler *) ReadICONImage;
|
||
entry->encoder=(EncodeImageHandler *) WriteICONImage;
|
||
entry->adjoin=MagickFalse;
|
||
entry->seekable_stream=MagickTrue;
|
||
entry->description=ConstantString("Microsoft icon");
|
||
entry->magick_module=ConstantString("ICON");
|
||
(void) RegisterMagickInfo(entry);
|
||
entry=SetMagickInfo("ICO");
|
||
entry->decoder=(DecodeImageHandler *) ReadICONImage;
|
||
entry->encoder=(EncodeImageHandler *) WriteICONImage;
|
||
entry->adjoin=MagickTrue;
|
||
entry->seekable_stream=MagickTrue;
|
||
entry->description=ConstantString("Microsoft icon");
|
||
entry->magick_module=ConstantString("ICON");
|
||
(void) RegisterMagickInfo(entry);
|
||
entry=SetMagickInfo("ICON");
|
||
entry->decoder=(DecodeImageHandler *) ReadICONImage;
|
||
entry->encoder=(EncodeImageHandler *) WriteICONImage;
|
||
entry->adjoin=MagickFalse;
|
||
entry->seekable_stream=MagickTrue;
|
||
entry->description=ConstantString("Microsoft icon");
|
||
entry->magick_module=ConstantString("ICON");
|
||
(void) RegisterMagickInfo(entry);
|
||
return(MagickImageCoderSignature);
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% U n r e g i s t e r I C O N I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% UnregisterICONImage() removes format registrations made by the
|
||
% ICON module from the list of supported formats.
|
||
%
|
||
% The format of the UnregisterICONImage method is:
|
||
%
|
||
% UnregisterICONImage(void)
|
||
%
|
||
*/
|
||
ModuleExport void UnregisterICONImage(void)
|
||
{
|
||
(void) UnregisterMagickInfo("CUR");
|
||
(void) UnregisterMagickInfo("ICO");
|
||
(void) UnregisterMagickInfo("ICON");
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% W r i t e I C O N I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% WriteICONImage() writes an image in Microsoft Windows bitmap encoded
|
||
% image format, version 3 for Windows or (if the image has a matte channel)
|
||
% version 4.
|
||
%
|
||
% It encodes any subimage as a compressed PNG image ("BI_PNG)", only when its
|
||
% dimensions are 256x256 and image->compression is undefined or is defined as
|
||
% ZipCompression.
|
||
%
|
||
% The format of the WriteICONImage method is:
|
||
%
|
||
% MagickBooleanType WriteICONImage(const ImageInfo *image_info,
|
||
% Image *image)
|
||
%
|
||
% A description of each parameter follows.
|
||
%
|
||
% o image_info: the image info.
|
||
%
|
||
% o image: The image.
|
||
%
|
||
*/
|
||
static MagickBooleanType WriteICONImage(const ImageInfo *image_info,
|
||
Image *image)
|
||
{
|
||
const char
|
||
*option;
|
||
|
||
IconFile
|
||
icon_file;
|
||
|
||
IconInfo
|
||
icon_info;
|
||
|
||
Image
|
||
*images,
|
||
*next;
|
||
|
||
MagickBooleanType
|
||
status;
|
||
|
||
MagickOffsetType
|
||
offset,
|
||
scene;
|
||
|
||
const IndexPacket
|
||
*indexes;
|
||
|
||
const PixelPacket
|
||
*p;
|
||
|
||
ssize_t
|
||
i,
|
||
x;
|
||
|
||
unsigned char
|
||
*q;
|
||
|
||
size_t
|
||
bytes_per_line,
|
||
imageListLength,
|
||
scanline_pad;
|
||
|
||
ssize_t
|
||
y;
|
||
|
||
unsigned char
|
||
bit,
|
||
byte,
|
||
*pixels;
|
||
|
||
/*
|
||
Open output image file.
|
||
*/
|
||
assert(image_info != (const ImageInfo *) NULL);
|
||
assert(image_info->signature == MagickCoreSignature);
|
||
assert(image != (Image *) NULL);
|
||
assert(image->signature == MagickCoreSignature);
|
||
(void) LogMagickEvent(CoderEvent,GetMagickModule(),"%s",image->filename);
|
||
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
|
||
if (status == MagickFalse)
|
||
return(status);
|
||
images=(Image *) NULL;
|
||
option=GetImageOption(image_info,"icon:auto-resize");
|
||
if (option != (const char *) NULL)
|
||
{
|
||
images=AutoResizeImage(image,option,&scene,&image->exception);
|
||
if (images == (Image *) NULL)
|
||
ThrowWriterException(ImageError,"InvalidDimensions");
|
||
}
|
||
else
|
||
{
|
||
scene=0;
|
||
next=image;
|
||
do
|
||
{
|
||
if ((image->columns > 256L) || (image->rows > 256L))
|
||
ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
|
||
scene++;
|
||
next=SyncNextImageInList(next);
|
||
} while ((next != (Image *) NULL) && (image_info->adjoin !=
|
||
MagickFalse));
|
||
}
|
||
/*
|
||
Dump out a ICON header template to be properly initialized later.
|
||
*/
|
||
(void) WriteBlobLSBShort(image,0);
|
||
(void) WriteBlobLSBShort(image,1);
|
||
(void) WriteBlobLSBShort(image,(unsigned char) scene);
|
||
(void) memset(&icon_file,0,sizeof(icon_file));
|
||
(void) memset(&icon_info,0,sizeof(icon_info));
|
||
scene=0;
|
||
next=(images != (Image *) NULL) ? images : image;
|
||
do
|
||
{
|
||
(void) WriteBlobByte(image,icon_file.directory[scene].width);
|
||
(void) WriteBlobByte(image,icon_file.directory[scene].height);
|
||
(void) WriteBlobByte(image,icon_file.directory[scene].colors);
|
||
(void) WriteBlobByte(image,icon_file.directory[scene].reserved);
|
||
(void) WriteBlobLSBShort(image,icon_file.directory[scene].planes);
|
||
(void) WriteBlobLSBShort(image,icon_file.directory[scene].bits_per_pixel);
|
||
(void) WriteBlobLSBLong(image,(unsigned int)
|
||
icon_file.directory[scene].size);
|
||
(void) WriteBlobLSBLong(image,(unsigned int)
|
||
icon_file.directory[scene].offset);
|
||
scene++;
|
||
next=SyncNextImageInList(next);
|
||
} while ((next != (Image *) NULL) && (image_info->adjoin != MagickFalse));
|
||
scene=0;
|
||
next=(images != (Image *) NULL) ? images : image;
|
||
imageListLength=GetImageListLength(image);
|
||
do
|
||
{
|
||
if ((next->columns > 255L) && (next->rows > 255L) &&
|
||
((next->compression == UndefinedCompression) ||
|
||
(next->compression == ZipCompression)))
|
||
{
|
||
Image
|
||
*write_image;
|
||
|
||
ImageInfo
|
||
*write_info;
|
||
|
||
size_t
|
||
length;
|
||
|
||
unsigned char
|
||
*png;
|
||
|
||
write_image=CloneImage(next,0,0,MagickTrue,&image->exception);
|
||
if (write_image == (Image *) NULL)
|
||
{
|
||
images=DestroyImageList(images);
|
||
return(MagickFalse);
|
||
}
|
||
write_info=CloneImageInfo(image_info);
|
||
(void) CopyMagickString(write_info->magick,"PNG",MagickPathExtent);
|
||
length=0;
|
||
|
||
/* Don't write any ancillary chunks except for gAMA */
|
||
(void) SetImageArtifact(write_image,"png:include-chunk","none,gama");
|
||
|
||
/* Only write PNG32 formatted PNG (32-bit RGBA), 8 bits per channel */
|
||
(void) SetImageArtifact(write_image,"png:format","png32");
|
||
(void) SetImageArtifact(write_image,"png:color-type","6");
|
||
png=(unsigned char *) ImageToBlob(write_info,write_image,&length,
|
||
&image->exception);
|
||
write_image=DestroyImageList(write_image);
|
||
write_info=DestroyImageInfo(write_info);
|
||
if (png == (unsigned char *) NULL)
|
||
{
|
||
images=DestroyImageList(images);
|
||
return(MagickFalse);
|
||
}
|
||
icon_file.directory[scene].width=0;
|
||
icon_file.directory[scene].height=0;
|
||
icon_file.directory[scene].colors=0;
|
||
icon_file.directory[scene].reserved=0;
|
||
icon_file.directory[scene].planes=1;
|
||
icon_file.directory[scene].bits_per_pixel=32;
|
||
icon_file.directory[scene].size=(size_t) length;
|
||
icon_file.directory[scene].offset=(size_t) TellBlob(image);
|
||
(void) WriteBlob(image,(size_t) length,png);
|
||
png=(unsigned char *) RelinquishMagickMemory(png);
|
||
}
|
||
else
|
||
{
|
||
/*
|
||
Initialize ICON raster file header.
|
||
*/
|
||
(void) TransformImageColorspace(image,sRGBColorspace);
|
||
icon_info.file_size=14+12+28;
|
||
icon_info.offset_bits=icon_info.file_size;
|
||
icon_info.compression=BI_RGB;
|
||
if ((next->storage_class != DirectClass) && (next->colors > 256))
|
||
(void) SetImageStorageClass(next,DirectClass);
|
||
if (next->storage_class == DirectClass)
|
||
{
|
||
/*
|
||
Full color ICON raster.
|
||
*/
|
||
icon_info.number_colors=0;
|
||
icon_info.bits_per_pixel=32;
|
||
icon_info.compression=(size_t) BI_RGB;
|
||
}
|
||
else
|
||
{
|
||
size_t
|
||
one;
|
||
|
||
/*
|
||
Colormapped ICON raster.
|
||
*/
|
||
icon_info.bits_per_pixel=8;
|
||
if (next->colors <= 16)
|
||
icon_info.bits_per_pixel=4;
|
||
if (next->colors <= 2)
|
||
icon_info.bits_per_pixel=1;
|
||
one=1;
|
||
icon_info.number_colors=one << icon_info.bits_per_pixel;
|
||
if (icon_info.number_colors < next->colors)
|
||
{
|
||
(void) SetImageStorageClass(next,DirectClass);
|
||
icon_info.number_colors=0;
|
||
icon_info.bits_per_pixel=(unsigned short) 24;
|
||
icon_info.compression=(size_t) BI_RGB;
|
||
}
|
||
else
|
||
{
|
||
size_t
|
||
one;
|
||
|
||
one=1;
|
||
icon_info.file_size+=3*(one << icon_info.bits_per_pixel);
|
||
icon_info.offset_bits+=3*(one << icon_info.bits_per_pixel);
|
||
icon_info.file_size+=(one << icon_info.bits_per_pixel);
|
||
icon_info.offset_bits+=(one << icon_info.bits_per_pixel);
|
||
}
|
||
}
|
||
bytes_per_line=(((next->columns*icon_info.bits_per_pixel)+31) &
|
||
~31) >> 3;
|
||
icon_info.ba_offset=0;
|
||
icon_info.width=(ssize_t) next->columns;
|
||
icon_info.height=(ssize_t) next->rows;
|
||
icon_info.planes=1;
|
||
icon_info.image_size=bytes_per_line*next->rows;
|
||
icon_info.size=40;
|
||
icon_info.size+=(4*icon_info.number_colors);
|
||
icon_info.size+=icon_info.image_size;
|
||
icon_info.size+=(((icon_info.width+31) & ~31) >> 3)*icon_info.height;
|
||
icon_info.file_size+=icon_info.image_size;
|
||
icon_info.x_pixels=0;
|
||
icon_info.y_pixels=0;
|
||
switch (next->units)
|
||
{
|
||
case UndefinedResolution:
|
||
case PixelsPerInchResolution:
|
||
{
|
||
icon_info.x_pixels=(size_t) (100.0*next->x_resolution/2.54);
|
||
icon_info.y_pixels=(size_t) (100.0*next->y_resolution/2.54);
|
||
break;
|
||
}
|
||
case PixelsPerCentimeterResolution:
|
||
{
|
||
icon_info.x_pixels=(size_t) (100.0*next->x_resolution);
|
||
icon_info.y_pixels=(size_t) (100.0*next->y_resolution);
|
||
break;
|
||
}
|
||
}
|
||
icon_info.colors_important=icon_info.number_colors;
|
||
/*
|
||
Convert MIFF to ICON raster pixels.
|
||
*/
|
||
pixels=(unsigned char *) AcquireQuantumMemory((size_t)
|
||
icon_info.image_size,sizeof(*pixels));
|
||
if (pixels == (unsigned char *) NULL)
|
||
{
|
||
images=DestroyImageList(images);
|
||
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
|
||
}
|
||
(void) memset(pixels,0,(size_t) icon_info.image_size);
|
||
switch (icon_info.bits_per_pixel)
|
||
{
|
||
case 1:
|
||
{
|
||
size_t
|
||
bit,
|
||
byte;
|
||
|
||
/*
|
||
Convert PseudoClass image to a ICON monochrome image.
|
||
*/
|
||
for (y=0; y < (ssize_t) next->rows; y++)
|
||
{
|
||
p=GetVirtualPixels(next,0,y,next->columns,1,&next->exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetVirtualIndexQueue(next);
|
||
q=pixels+(next->rows-y-1)*bytes_per_line;
|
||
bit=0;
|
||
byte=0;
|
||
for (x=0; x < (ssize_t) next->columns; x++)
|
||
{
|
||
byte<<=1;
|
||
byte|=GetPixelIndex(indexes+x) != 0 ? 0x01 : 0x00;
|
||
bit++;
|
||
if (bit == 8)
|
||
{
|
||
*q++=(unsigned char) byte;
|
||
bit=0;
|
||
byte=0;
|
||
}
|
||
}
|
||
if (bit != 0)
|
||
*q++=(unsigned char) (byte << (8-bit));
|
||
if (next->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(next,SaveImageTag,y,next->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case 4:
|
||
{
|
||
size_t
|
||
nibble,
|
||
byte;
|
||
|
||
/*
|
||
Convert PseudoClass image to a ICON monochrome image.
|
||
*/
|
||
for (y=0; y < (ssize_t) next->rows; y++)
|
||
{
|
||
p=GetVirtualPixels(next,0,y,next->columns,1,&next->exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetVirtualIndexQueue(next);
|
||
q=pixels+(next->rows-y-1)*bytes_per_line;
|
||
nibble=0;
|
||
byte=0;
|
||
for (x=0; x < (ssize_t) next->columns; x++)
|
||
{
|
||
byte<<=4;
|
||
byte|=((size_t) GetPixelIndex(indexes+x) & 0x0f);
|
||
nibble++;
|
||
if (nibble == 2)
|
||
{
|
||
*q++=(unsigned char) byte;
|
||
nibble=0;
|
||
byte=0;
|
||
}
|
||
}
|
||
if (nibble != 0)
|
||
*q++=(unsigned char) (byte << 4);
|
||
if (next->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(next,SaveImageTag,y,next->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case 8:
|
||
{
|
||
/*
|
||
Convert PseudoClass packet to ICON pixel.
|
||
*/
|
||
for (y=0; y < (ssize_t) next->rows; y++)
|
||
{
|
||
p=GetVirtualPixels(next,0,y,next->columns,1,&next->exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetVirtualIndexQueue(next);
|
||
q=pixels+(next->rows-y-1)*bytes_per_line;
|
||
for (x=0; x < (ssize_t) next->columns; x++)
|
||
*q++=(unsigned char) ((size_t) GetPixelIndex(indexes+x));
|
||
if (next->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(next,SaveImageTag,y,next->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case 24:
|
||
case 32:
|
||
{
|
||
/*
|
||
Convert DirectClass packet to ICON BGR888 or BGRA8888 pixel.
|
||
*/
|
||
for (y=0; y < (ssize_t) next->rows; y++)
|
||
{
|
||
p=GetVirtualPixels(next,0,y,next->columns,1,&next->exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
q=pixels+(next->rows-y-1)*bytes_per_line;
|
||
for (x=0; x < (ssize_t) next->columns; x++)
|
||
{
|
||
*q++=ScaleQuantumToChar(GetPixelBlue(p));
|
||
*q++=ScaleQuantumToChar(GetPixelGreen(p));
|
||
*q++=ScaleQuantumToChar(GetPixelRed(p));
|
||
if (next->matte == MagickFalse)
|
||
*q++=ScaleQuantumToChar(QuantumRange);
|
||
else
|
||
*q++=ScaleQuantumToChar(GetPixelAlpha(p));
|
||
p++;
|
||
}
|
||
if (icon_info.bits_per_pixel == 24)
|
||
for (x=3L*(ssize_t) next->columns; x < (ssize_t) bytes_per_line; x++)
|
||
*q++=0x00;
|
||
if (next->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(next,SaveImageTag,y,next->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
/*
|
||
Write 40-byte version 3+ bitmap header.
|
||
*/
|
||
icon_file.directory[scene].width=(unsigned char) icon_info.width;
|
||
icon_file.directory[scene].height=(unsigned char) icon_info.height;
|
||
icon_file.directory[scene].colors=(unsigned char)
|
||
icon_info.number_colors;
|
||
icon_file.directory[scene].reserved=0;
|
||
icon_file.directory[scene].planes=icon_info.planes;
|
||
icon_file.directory[scene].bits_per_pixel=icon_info.bits_per_pixel;
|
||
icon_file.directory[scene].size=icon_info.size;
|
||
icon_file.directory[scene].offset=(size_t) TellBlob(image);
|
||
(void) WriteBlobLSBLong(image,(unsigned int) 40);
|
||
(void) WriteBlobLSBLong(image,(unsigned int) icon_info.width);
|
||
(void) WriteBlobLSBLong(image,(unsigned int) icon_info.height*2);
|
||
(void) WriteBlobLSBShort(image,icon_info.planes);
|
||
(void) WriteBlobLSBShort(image,icon_info.bits_per_pixel);
|
||
(void) WriteBlobLSBLong(image,(unsigned int) icon_info.compression);
|
||
(void) WriteBlobLSBLong(image,(unsigned int) icon_info.image_size);
|
||
(void) WriteBlobLSBLong(image,(unsigned int) icon_info.x_pixels);
|
||
(void) WriteBlobLSBLong(image,(unsigned int) icon_info.y_pixels);
|
||
(void) WriteBlobLSBLong(image,(unsigned int) icon_info.number_colors);
|
||
(void) WriteBlobLSBLong(image,(unsigned int) icon_info.colors_important);
|
||
if (next->storage_class == PseudoClass)
|
||
{
|
||
unsigned char
|
||
*icon_colormap;
|
||
|
||
/*
|
||
Dump colormap to file.
|
||
*/
|
||
icon_colormap=(unsigned char *) AcquireQuantumMemory((size_t)
|
||
(1UL << icon_info.bits_per_pixel),4UL*sizeof(*icon_colormap));
|
||
if (icon_colormap == (unsigned char *) NULL)
|
||
{
|
||
images=DestroyImageList(images);
|
||
ThrowWriterException(ResourceLimitError,
|
||
"MemoryAllocationFailed");
|
||
}
|
||
q=icon_colormap;
|
||
for (i=0; i < (ssize_t) next->colors; i++)
|
||
{
|
||
*q++=ScaleQuantumToChar(next->colormap[i].blue);
|
||
*q++=ScaleQuantumToChar(next->colormap[i].green);
|
||
*q++=ScaleQuantumToChar(next->colormap[i].red);
|
||
*q++=(unsigned char) 0x0;
|
||
}
|
||
for ( ; i < (ssize_t) (1UL << icon_info.bits_per_pixel); i++)
|
||
{
|
||
*q++=(unsigned char) 0x00;
|
||
*q++=(unsigned char) 0x00;
|
||
*q++=(unsigned char) 0x00;
|
||
*q++=(unsigned char) 0x00;
|
||
}
|
||
(void) WriteBlob(image,(size_t) (4UL*(1UL <<
|
||
icon_info.bits_per_pixel)),icon_colormap);
|
||
icon_colormap=(unsigned char *) RelinquishMagickMemory(
|
||
icon_colormap);
|
||
}
|
||
(void) WriteBlob(image,(size_t) icon_info.image_size,pixels);
|
||
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
|
||
/*
|
||
Write matte mask.
|
||
*/
|
||
scanline_pad=(((next->columns+31) & ~31)-next->columns) >> 3;
|
||
for (y=((ssize_t) next->rows - 1); y >= 0; y--)
|
||
{
|
||
p=GetVirtualPixels(next,0,y,next->columns,1,&next->exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
bit=0;
|
||
byte=0;
|
||
for (x=0; x < (ssize_t) next->columns; x++)
|
||
{
|
||
byte<<=1;
|
||
if ((next->matte != MagickFalse) &&
|
||
(GetPixelOpacity(p) == (Quantum) TransparentOpacity))
|
||
byte|=0x01;
|
||
bit++;
|
||
if (bit == 8)
|
||
{
|
||
(void) WriteBlobByte(image,(unsigned char) byte);
|
||
bit=0;
|
||
byte=0;
|
||
}
|
||
p++;
|
||
}
|
||
if (bit != 0)
|
||
(void) WriteBlobByte(image,(unsigned char) (byte << (8-bit)));
|
||
for (i=0; i < (ssize_t) scanline_pad; i++)
|
||
(void) WriteBlobByte(image,(unsigned char) 0);
|
||
}
|
||
}
|
||
if (GetNextImageInList(next) == (Image *) NULL)
|
||
break;
|
||
status=SetImageProgress(next,SaveImagesTag,scene++,imageListLength);
|
||
if (status == MagickFalse)
|
||
break;
|
||
next=SyncNextImageInList(next);
|
||
} while ((next != (Image *) NULL) && (image_info->adjoin != MagickFalse));
|
||
offset=SeekBlob(image,0,SEEK_SET);
|
||
(void) offset;
|
||
(void) WriteBlobLSBShort(image,0);
|
||
(void) WriteBlobLSBShort(image,1);
|
||
(void) WriteBlobLSBShort(image,(unsigned short) (scene+1));
|
||
scene=0;
|
||
next=(images != (Image *) NULL) ? images : image;
|
||
do
|
||
{
|
||
(void) WriteBlobByte(image,icon_file.directory[scene].width);
|
||
(void) WriteBlobByte(image,icon_file.directory[scene].height);
|
||
(void) WriteBlobByte(image,icon_file.directory[scene].colors);
|
||
(void) WriteBlobByte(image,icon_file.directory[scene].reserved);
|
||
(void) WriteBlobLSBShort(image,icon_file.directory[scene].planes);
|
||
(void) WriteBlobLSBShort(image,icon_file.directory[scene].bits_per_pixel);
|
||
(void) WriteBlobLSBLong(image,(unsigned int)
|
||
icon_file.directory[scene].size);
|
||
(void) WriteBlobLSBLong(image,(unsigned int)
|
||
icon_file.directory[scene].offset);
|
||
scene++;
|
||
next=SyncNextImageInList(next);
|
||
} while ((next != (Image *) NULL) && (image_info->adjoin != MagickFalse));
|
||
(void) CloseBlob(image);
|
||
images=DestroyImageList(images);
|
||
return(MagickTrue);
|
||
}
|