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https://github.com/ImageMagick/ImageMagick.git
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Cristy
1536 lines
52 KiB
C
1536 lines
52 KiB
C
/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% IIIII CCCC OOO N N %
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% I C O O NN N %
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% I C O O N N N %
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% I C O O N NN %
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% IIIII CCCC OOO N N %
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% %
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% %
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% Read Microsoft Windows Icon Format %
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% %
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% Software Design %
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% Cristy %
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% July 1992 %
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% %
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% %
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% Copyright @ 1999 ImageMagick Studio LLC, a non-profit organization %
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% dedicated to making software imaging solutions freely available. %
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% %
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% You may not use this file except in compliance with the License. You may %
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% obtain a copy of the License at %
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% %
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% https://imagemagick.org/license/ %
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% %
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% Unless required by applicable law or agreed to in writing, software %
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% distributed under the License is distributed on an "AS IS" BASIS, %
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
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% See the License for the specific language governing permissions and %
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% limitations under the License. %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%
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*/
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/*
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Include declarations.
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*/
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#include "MagickCore/studio.h"
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#include "MagickCore/artifact.h"
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#include "MagickCore/attribute.h"
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#include "MagickCore/blob.h"
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#include "MagickCore/blob-private.h"
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#include "MagickCore/cache.h"
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#include "MagickCore/colormap.h"
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#include "MagickCore/colorspace.h"
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#include "MagickCore/colorspace-private.h"
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#include "MagickCore/exception.h"
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#include "MagickCore/exception-private.h"
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#include "MagickCore/image.h"
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#include "MagickCore/image-private.h"
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#include "MagickCore/list.h"
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#include "MagickCore/log.h"
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#include "MagickCore/magick.h"
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#include "MagickCore/memory_.h"
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#include "MagickCore/monitor.h"
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#include "MagickCore/monitor-private.h"
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#include "MagickCore/nt-base-private.h"
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#include "MagickCore/option.h"
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#include "MagickCore/pixel-accessor.h"
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#include "MagickCore/quantize.h"
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#include "MagickCore/quantum-private.h"
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#include "MagickCore/static.h"
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#include "MagickCore/string_.h"
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#include "MagickCore/string-private.h"
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#include "MagickCore/module.h"
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/*
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Define declarations.
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*/
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#define IconRgbCompression (size_t) 0
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#define MaxIcons 1024
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/*
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Typedef declarations.
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*/
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typedef struct _IconEntry
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{
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unsigned char
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width,
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height,
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colors,
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reserved;
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unsigned short int
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planes,
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bits_per_pixel;
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size_t
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size,
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offset;
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} IconEntry;
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typedef struct _IconDirectory
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{
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size_t
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count;
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IconEntry
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**icons;
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} IconDirectory;
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/*
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Forward declarations.
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*/
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static MagickBooleanType
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WriteICONImage(const ImageInfo *,Image *,ExceptionInfo *);
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static IconDirectory *RelinquishIconDirectory(IconDirectory *directory)
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{
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ssize_t
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i;
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assert(directory != (IconDirectory *) NULL);
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if (directory->icons != (IconEntry **) NULL)
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{
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for (i=0; i < (ssize_t) directory->count; i++)
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{
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if (directory->icons[i] != (IconEntry *) NULL)
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directory->icons[i]=(IconEntry *) RelinquishMagickMemory(
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directory->icons[i]);
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}
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directory->icons=(IconEntry **) RelinquishMagickMemory(directory->icons);
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}
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directory=(IconDirectory *) RelinquishMagickMemory(directory);
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return(directory);
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}
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static IconDirectory *AcquireIconDirectory(size_t count)
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{
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IconDirectory
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*directory;
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ssize_t
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i;
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directory=(IconDirectory*) AcquireMagickMemory(sizeof(*directory));
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if (directory == (IconDirectory*) NULL)
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return(directory);
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directory->icons=(IconEntry **) AcquireQuantumMemory(count,
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sizeof(*directory->icons));
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if (directory->icons == (IconEntry **) NULL)
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return(RelinquishIconDirectory(directory));
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memset(directory->icons,0,count*sizeof(*directory->icons));
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directory->count=0;
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for (i=0; i < (ssize_t) count; i++)
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{
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directory->icons[i]=(IconEntry *) AcquireMagickMemory(
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sizeof(**directory->icons));
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if (directory->icons[i] == (IconEntry *) NULL)
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return(RelinquishIconDirectory(directory));
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directory->count++;
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}
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return(directory);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% R e a d I C O N I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% ReadICONImage() reads a Microsoft icon image file and returns it. It
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% allocates the memory necessary for the new Image structure and returns a
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% pointer to the new image.
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%
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% The format of the ReadICONImage method is:
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%
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% Image *ReadICONImage(const ImageInfo *image_info,
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% ExceptionInfo *exception)
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%
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% A description of each parameter follows:
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%
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% o image_info: the image info.
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%
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% o exception: return any errors or warnings in this structure.
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%
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*/
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static Image *Read1XImage(Image *image,ExceptionInfo *exception)
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{
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size_t
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columns,
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rows;
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ssize_t
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i;
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/*
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Read Windows 1.0 Icon.
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*/
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(void) ReadBlobLSBLong(image); /* hot spot X/Y */
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columns=(size_t) ReadBlobLSBShort(image);
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rows=(size_t) (ReadBlobLSBShort(image));
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(void) ReadBlobLSBShort(image); /* width of bitmap in bytes */
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(void) ReadBlobLSBShort(image); /* cursor color */
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if (((rows != 32) && (rows != 64)) || ((columns != 32) && (columns != 64)))
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{
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(void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError,
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"ImproperImageHeader","`%s'",image->filename);
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return(DestroyImageList(image));
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}
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/*
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Convert bitmap scanline.
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*/
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if (SetImageExtent(image,columns,rows,exception) == MagickFalse)
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return(DestroyImageList(image));
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image->alpha_trait=BlendPixelTrait;
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if (AcquireImageColormap(image,3,exception) == MagickFalse)
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return(DestroyImageList(image));
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image->colormap[1].alpha=TransparentAlpha;
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for (i=0; i < 2; i++)
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{
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ssize_t
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y;
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for (y=0; y < (ssize_t) image->columns; y++)
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{
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Quantum
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*q;
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ssize_t
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x;
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q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
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if (q == (Quantum *) NULL)
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break;
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for (x=0; x < (ssize_t) (image->columns-7); x+=8)
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{
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size_t
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bit,
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byte;
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byte=(size_t) ReadBlobByte(image);
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for (bit=0; bit < 8; bit++)
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{
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Quantum
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index;
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index=(Quantum) ((byte & (0x80 >> bit)) != 0 ? (i == 0 ? 0x01 : 0x02) : 0x00);
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if (i == 0)
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SetPixelIndex(image,index,q);
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else
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if (GetPixelIndex(image,q) != 0x01)
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SetPixelIndex(image,index,q);
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q+=(ptrdiff_t) GetPixelChannels(image);
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}
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}
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if (SyncAuthenticPixels(image,exception) == MagickFalse)
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break;
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}
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}
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if (SyncImage(image,exception) == MagickFalse)
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return(DestroyImageList(image));
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if (CloseBlob(image) == MagickFalse)
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return(DestroyImageList(image));
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return(image);
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}
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static inline size_t GetICONSize(size_t directory_size,size_t image_size)
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{
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if (image_size != 0)
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return(image_size);
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if (directory_size != 0)
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return(directory_size);
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return(256);
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}
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static Image *ReadICONImage(const ImageInfo *image_info,
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ExceptionInfo *exception)
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{
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#define ThrowICONReaderException(exception,message) \
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{ \
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directory=RelinquishIconDirectory(directory); \
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ThrowReaderException(exception,message) \
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}
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IconDirectory
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*directory;
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Image
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*image;
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MagickBooleanType
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status;
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MagickSizeType
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extent;
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Quantum
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*q;
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short
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reserved,
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resource_type;
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size_t
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bit,
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byte,
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bytes_per_line,
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one,
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scanline_pad;
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ssize_t
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i,
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offset,
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x,
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y;
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unsigned char
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*p;
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unsigned short
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icon_count;
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/*
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Open image file.
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*/
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickCoreSignature);
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(void) LogMagickEvent(CoderEvent,GetMagickModule(),"%s",image_info->filename);
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assert(exception != (ExceptionInfo *) NULL);
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assert(exception->signature == MagickCoreSignature);
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image=AcquireImage(image_info,exception);
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status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
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if (status == MagickFalse)
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{
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image=DestroyImageList(image);
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return((Image *) NULL);
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}
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reserved=(short) ReadBlobLSBShort(image);
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if ((reserved == 0x0001) || (reserved == 0x0101) || (reserved == 0x0201))
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return(Read1XImage(image,exception));
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resource_type=(short) ReadBlobLSBShort(image);
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icon_count=ReadBlobLSBShort(image);
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if ((reserved != 0) || ((resource_type != 1) && (resource_type != 2)) ||
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(icon_count > MaxIcons))
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ThrowReaderException(CorruptImageError,"ImproperImageHeader");
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directory=AcquireIconDirectory((size_t) icon_count);
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if (directory == (IconDirectory *) NULL)
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ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
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extent=0;
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for (i=0; i < (ssize_t) directory->count; i++)
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{
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directory->icons[i]->width=(unsigned char) ReadBlobByte(image);
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directory->icons[i]->height=(unsigned char) ReadBlobByte(image);
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directory->icons[i]->colors=(unsigned char) ReadBlobByte(image);
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directory->icons[i]->reserved=(unsigned char) ReadBlobByte(image);
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directory->icons[i]->planes=(unsigned short) ReadBlobLSBShort(image);
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directory->icons[i]->bits_per_pixel=(unsigned short)
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ReadBlobLSBShort(image);
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directory->icons[i]->size=ReadBlobLSBLong(image);
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directory->icons[i]->offset=ReadBlobLSBLong(image);
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if (EOFBlob(image) != MagickFalse)
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break;
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extent=MagickMax(extent,directory->icons[i]->size);
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}
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if ((EOFBlob(image) != MagickFalse) || (extent > GetBlobSize(image)))
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ThrowICONReaderException(CorruptImageError,"UnexpectedEndOfFile");
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one=1;
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for (i=0; i < (ssize_t) directory->count; i++)
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{
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size_t
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size;
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ssize_t
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count,
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height,
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width;
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unsigned short
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bits_per_pixel,
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planes;
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/*
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Verify Icon identifier.
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*/
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offset=(ssize_t) SeekBlob(image,(MagickOffsetType)
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directory->icons[i]->offset,SEEK_SET);
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if (offset < 0)
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ThrowICONReaderException(CorruptImageError,"ImproperImageHeader");
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size=ReadBlobLSBLong(image);
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width=ReadBlobLSBSignedLong(image);
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height=(ReadBlobLSBSignedLong(image)/2);
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planes=ReadBlobLSBShort(image);
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bits_per_pixel=ReadBlobLSBShort(image);
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if (EOFBlob(image) != MagickFalse)
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{
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ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
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image->filename);
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break;
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}
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if (((planes == 18505) && (bits_per_pixel == 21060)) ||
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(size == 0x474e5089))
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{
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Image
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*icon_image;
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ImageInfo
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*read_info;
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size_t
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length;
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unsigned char
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*png;
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/*
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Icon image encoded as a compressed PNG image.
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*/
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length=directory->icons[i]->size;
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if ((length < 16) || (~length < 16))
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ThrowICONReaderException(ResourceLimitError,"MemoryAllocationFailed");
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png=(unsigned char *) AcquireQuantumMemory(length,sizeof(*png));
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if (png == (unsigned char *) NULL)
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ThrowICONReaderException(ResourceLimitError,"MemoryAllocationFailed");
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(void) memcpy(png,"\211PNG\r\n\032\n\000\000\000\015",12);
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png[12]=(unsigned char) planes;
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png[13]=(unsigned char) (planes >> 8);
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png[14]=(unsigned char) bits_per_pixel;
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png[15]=(unsigned char) (bits_per_pixel >> 8);
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count=ReadBlob(image,length-16,png+16);
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if (count != (ssize_t) (length-16))
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{
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png=(unsigned char *) RelinquishMagickMemory(png);
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ThrowICONReaderException(CorruptImageError,
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"InsufficientImageDataInFile");
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}
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read_info=CloneImageInfo(image_info);
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(void) CopyMagickString(read_info->magick,"PNG",MagickPathExtent);
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icon_image=BlobToImage(read_info,png,length,exception);
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read_info=DestroyImageInfo(read_info);
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png=(unsigned char *) RelinquishMagickMemory(png);
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if (icon_image == (Image *) NULL)
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{
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directory=RelinquishIconDirectory(directory);
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return(DestroyImageList(image));
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}
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DestroyBlob(icon_image);
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icon_image->blob=ReferenceBlob(image->blob);
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ReplaceImageInList(&image,icon_image);
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icon_image->scene=(size_t) i;
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}
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else
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{
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size_t
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number_colors;
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if (bits_per_pixel > 32)
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ThrowICONReaderException(CorruptImageError,"ImproperImageHeader");
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(void) ReadBlobLSBLong(image); /* compression */
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(void) ReadBlobLSBLong(image); /* image_size */
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(void) ReadBlobLSBLong(image); /* x_pixels */
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(void) ReadBlobLSBLong(image); /* y_pixels */
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number_colors=ReadBlobLSBLong(image);
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if (number_colors > GetBlobSize(image))
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ThrowICONReaderException(CorruptImageError,
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"InsufficientImageDataInFile");
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(void) ReadBlobLSBLong(image); /* colors_important */
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image->alpha_trait=BlendPixelTrait;
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image->columns=(size_t) GetICONSize( directory->icons[i]->width,
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(size_t) width);
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image->rows=(size_t) GetICONSize(directory->icons[i]->height,
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(size_t) height);
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image->depth=bits_per_pixel;
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if (image->depth > 16)
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image->depth=8;
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if (image->debug != MagickFalse)
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{
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(void) LogMagickEvent(CoderEvent,GetMagickModule(),
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" scene = %.20g",(double) i);
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(void) LogMagickEvent(CoderEvent,GetMagickModule(),
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" size = %.20g",(double) size);
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(void) LogMagickEvent(CoderEvent,GetMagickModule(),
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" width = %.20g",(double) image->columns);
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(void) LogMagickEvent(CoderEvent,GetMagickModule(),
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" height = %.20g",(double) image->rows);
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(void) LogMagickEvent(CoderEvent,GetMagickModule(),
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" colors = %.20g",(double ) number_colors);
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(void) LogMagickEvent(CoderEvent,GetMagickModule(),
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" planes = %.20g",(double) planes);
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(void) LogMagickEvent(CoderEvent,GetMagickModule(),
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" bpp = %.20g",(double) bits_per_pixel);
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}
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|
if ((number_colors != 0) || (bits_per_pixel <= 16U))
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{
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image->storage_class=PseudoClass;
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image->colors=number_colors;
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if ((image->colors == 0) || (image->colors > 256))
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image->colors=one << bits_per_pixel;
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}
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if (image->storage_class == PseudoClass)
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{
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ssize_t
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j;
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unsigned char
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*icon_colormap;
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/*
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Read Icon raster colormap.
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*/
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if (image->colors > GetBlobSize(image))
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ThrowICONReaderException(CorruptImageError,
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"InsufficientImageDataInFile");
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if (AcquireImageColormap(image,image->colors,exception) == MagickFalse)
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ThrowICONReaderException(ResourceLimitError,
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"MemoryAllocationFailed");
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icon_colormap=(unsigned char *) AcquireQuantumMemory((size_t)
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|
image->colors,4UL*sizeof(*icon_colormap));
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if (icon_colormap == (unsigned char *) NULL)
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ThrowICONReaderException(ResourceLimitError,
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"MemoryAllocationFailed");
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count=ReadBlob(image,(size_t) (4*image->colors),icon_colormap);
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if (count != (ssize_t) (4*image->colors))
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{
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icon_colormap=(unsigned char *) RelinquishMagickMemory(
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icon_colormap);
|
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ThrowICONReaderException(CorruptImageError,
|
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"InsufficientImageDataInFile");
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|
}
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|
p=icon_colormap;
|
|
for (j=0; j < (ssize_t) image->colors; j++)
|
|
{
|
|
image->colormap[j].blue=(Quantum) ScaleCharToQuantum(*p++);
|
|
image->colormap[j].green=(Quantum) ScaleCharToQuantum(*p++);
|
|
image->colormap[j].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,exception);
|
|
if (status == MagickFalse)
|
|
{
|
|
directory=RelinquishIconDirectory(directory);
|
|
return(DestroyImageList(image));
|
|
}
|
|
bytes_per_line=(((image->columns*bits_per_pixel)+31U) & ~31U) >> 3;
|
|
(void) bytes_per_line;
|
|
scanline_pad=((((image->columns*bits_per_pixel)+31U) & ~31U)-
|
|
(image->columns*bits_per_pixel)) >> 3;
|
|
switch (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 == (Quantum *) NULL)
|
|
break;
|
|
for (x=0; x < (ssize_t) (image->columns-7); x+=8)
|
|
{
|
|
byte=(size_t) ReadBlobByte(image);
|
|
for (bit=0; bit < 8; bit++)
|
|
{
|
|
SetPixelIndex(image,(Quantum) ((byte & (0x80 >> bit)) != 0 ?
|
|
0x01 : 0x00),q);
|
|
q+=(ptrdiff_t) GetPixelChannels(image);
|
|
}
|
|
}
|
|
if ((image->columns % 8) != 0)
|
|
{
|
|
byte=(size_t) ReadBlobByte(image);
|
|
for (bit=0; bit < (image->columns % 8); bit++)
|
|
{
|
|
SetPixelIndex(image,(Quantum) ((byte & (0x80 >> bit)) != 0 ?
|
|
0x01 : 0x00),q);
|
|
q+=(ptrdiff_t) GetPixelChannels(image);
|
|
}
|
|
}
|
|
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,(MagickOffsetType)
|
|
image->rows-y-1,(MagickSizeType) 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 == (Quantum *) NULL)
|
|
break;
|
|
for (x=0; x < ((ssize_t) image->columns-1); x+=2)
|
|
{
|
|
byte=(size_t) ReadBlobByte(image);
|
|
SetPixelIndex(image,(Quantum) ((byte >> 4) & 0xf),q);
|
|
q+=(ptrdiff_t) GetPixelChannels(image);
|
|
SetPixelIndex(image,(Quantum) ((byte) & 0xf),q);
|
|
q+=(ptrdiff_t) GetPixelChannels(image);
|
|
}
|
|
if ((image->columns % 2) != 0)
|
|
{
|
|
byte=(size_t) ReadBlobByte(image);
|
|
SetPixelIndex(image,(Quantum) ((byte >> 4) & 0xf),q);
|
|
q+=(ptrdiff_t) GetPixelChannels(image);
|
|
}
|
|
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,(MagickOffsetType)
|
|
image->rows-y-1,(MagickSizeType) 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 == (Quantum *) NULL)
|
|
break;
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
{
|
|
byte=(size_t) ReadBlobByte(image);
|
|
SetPixelIndex(image,(Quantum) byte,q);
|
|
q+=(ptrdiff_t) GetPixelChannels(image);
|
|
}
|
|
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,(MagickOffsetType)
|
|
image->rows-y-1,(MagickSizeType) 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 == (Quantum *) NULL)
|
|
break;
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
{
|
|
byte=(size_t) ReadBlobByte(image);
|
|
byte|=((size_t) ReadBlobByte(image) << 8);
|
|
SetPixelIndex(image,(Quantum) byte,q);
|
|
q+=(ptrdiff_t) GetPixelChannels(image);
|
|
}
|
|
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,(MagickOffsetType)
|
|
image->rows-y-1,(MagickSizeType) 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 == (Quantum *) NULL)
|
|
break;
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
{
|
|
SetPixelBlue(image,ScaleCharToQuantum((unsigned char)
|
|
ReadBlobByte(image)),q);
|
|
SetPixelGreen(image,ScaleCharToQuantum((unsigned char)
|
|
ReadBlobByte(image)),q);
|
|
SetPixelRed(image,ScaleCharToQuantum((unsigned char)
|
|
ReadBlobByte(image)),q);
|
|
if (bits_per_pixel == 32)
|
|
SetPixelAlpha(image,ScaleCharToQuantum((unsigned char)
|
|
ReadBlobByte(image)),q);
|
|
q+=(ptrdiff_t) GetPixelChannels(image);
|
|
}
|
|
if (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,(MagickOffsetType)
|
|
image->rows-y-1,(MagickSizeType) image->rows);
|
|
if (status == MagickFalse)
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
ThrowICONReaderException(CorruptImageError,"ImproperImageHeader");
|
|
}
|
|
if ((image_info->ping == MagickFalse) && (bits_per_pixel <= 16))
|
|
(void) SyncImage(image,exception);
|
|
if (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 == (Quantum *) NULL)
|
|
break;
|
|
for (x=0; x < ((ssize_t) image->columns-7); x+=8)
|
|
{
|
|
byte=(size_t) ReadBlobByte(image);
|
|
for (bit=0; bit < 8; bit++)
|
|
{
|
|
SetPixelAlpha(image,(((byte & (0x80 >> bit)) != 0) ?
|
|
TransparentAlpha : OpaqueAlpha),q);
|
|
q+=(ptrdiff_t) GetPixelChannels(image);
|
|
}
|
|
}
|
|
if ((image->columns % 8) != 0)
|
|
{
|
|
byte=(size_t) ReadBlobByte(image);
|
|
for (bit=0; bit < (image->columns % 8); bit++)
|
|
{
|
|
SetPixelAlpha(image,(((byte & (0x80 >> bit)) != 0) ?
|
|
TransparentAlpha : OpaqueAlpha),q);
|
|
q+=(ptrdiff_t) GetPixelChannels(image);
|
|
}
|
|
}
|
|
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) directory->count-1))
|
|
{
|
|
/*
|
|
Allocate next image structure.
|
|
*/
|
|
AcquireNextImage(image_info,image,exception);
|
|
if (GetNextImageInList(image) == (Image *) NULL)
|
|
{
|
|
status=MagickFalse;
|
|
break;
|
|
}
|
|
image=SyncNextImageInList(image);
|
|
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
|
|
GetBlobSize(image));
|
|
if (status == MagickFalse)
|
|
break;
|
|
}
|
|
}
|
|
directory=RelinquishIconDirectory(directory);
|
|
(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=AcquireMagickInfo("ICON","CUR","Microsoft icon");
|
|
entry->decoder=(DecodeImageHandler *) ReadICONImage;
|
|
entry->encoder=(EncodeImageHandler *) WriteICONImage;
|
|
entry->flags^=CoderAdjoinFlag;
|
|
entry->flags|=CoderDecoderSeekableStreamFlag;
|
|
entry->flags|=CoderEncoderSeekableStreamFlag;
|
|
(void) RegisterMagickInfo(entry);
|
|
entry=AcquireMagickInfo("ICON","ICO","Microsoft icon");
|
|
entry->decoder=(DecodeImageHandler *) ReadICONImage;
|
|
entry->encoder=(EncodeImageHandler *) WriteICONImage;
|
|
entry->flags|=CoderDecoderSeekableStreamFlag;
|
|
entry->flags|=CoderEncoderSeekableStreamFlag;
|
|
(void) RegisterMagickInfo(entry);
|
|
entry=AcquireMagickInfo("ICON","ICN","Microsoft icon");
|
|
entry->decoder=(DecodeImageHandler *) ReadICONImage;
|
|
entry->encoder=(EncodeImageHandler *) WriteICONImage;
|
|
entry->flags ^= CoderAdjoinFlag;
|
|
entry->flags|=CoderDecoderSeekableStreamFlag;
|
|
entry->flags|=CoderEncoderSeekableStreamFlag;
|
|
(void) RegisterMagickInfo(entry);
|
|
entry=AcquireMagickInfo("ICON","ICON","Microsoft icon");
|
|
entry->decoder=(DecodeImageHandler *) ReadICONImage;
|
|
entry->encoder=(EncodeImageHandler *) WriteICONImage;
|
|
entry->flags^=CoderAdjoinFlag;
|
|
entry->flags|=CoderDecoderSeekableStreamFlag;
|
|
entry->flags|=CoderEncoderSeekableStreamFlag;
|
|
(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 larger than 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,ExceptionInfo *exception)
|
|
%
|
|
% A description of each parameter follows.
|
|
%
|
|
% o image_info: the image info.
|
|
%
|
|
% o image: The image.
|
|
%
|
|
% o exception: return any errors or warnings in this structure.
|
|
%
|
|
*/
|
|
|
|
static Image *AutoResizeImage(const Image *image,const char *option,
|
|
MagickOffsetType *count,ExceptionInfo *exception)
|
|
{
|
|
#define MAX_SIZES 16
|
|
|
|
char
|
|
*q;
|
|
|
|
const char
|
|
*p;
|
|
|
|
Image
|
|
*images,
|
|
*resized;
|
|
|
|
size_t
|
|
sizes[MAX_SIZES] = { 256, 192, 128, 96, 64, 48, 40, 32, 24, 16 };
|
|
|
|
ssize_t
|
|
i;
|
|
|
|
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 > 512))
|
|
return((Image *) NULL);
|
|
p=q;
|
|
sizes[i++]=size;
|
|
while ((isspace((int) ((unsigned char) *p)) != 0) || (*p == ','))
|
|
p++;
|
|
}
|
|
if (i == 0)
|
|
i=10; /* the number of sizes when they are not specified by the user */
|
|
*count=i;
|
|
for (i=0; i < *count; i++)
|
|
{
|
|
resized=ResizeImage(image,sizes[i],sizes[i],image->filter,exception);
|
|
if (resized == (Image *) NULL)
|
|
return(DestroyImageList(images));
|
|
if (images == (Image *) NULL)
|
|
images=resized;
|
|
else
|
|
AppendImageToList(&images,resized);
|
|
}
|
|
return(images);
|
|
}
|
|
|
|
static inline MagickBooleanType ShouldCompressAsPng(const Image* image,
|
|
const size_t png_size)
|
|
{
|
|
if ((png_size != 0) && (image->columns >= png_size) &&
|
|
(image->rows >= png_size))
|
|
return(MagickTrue);
|
|
if ((image->columns > 256L) && (image->rows > 256L) &&
|
|
((image->compression == UndefinedCompression) ||
|
|
(image->compression == ZipCompression)))
|
|
return(MagickTrue);
|
|
return(MagickFalse);
|
|
}
|
|
|
|
static MagickBooleanType WriteICONImage(const ImageInfo *image_info,
|
|
Image *image,ExceptionInfo *exception)
|
|
{
|
|
#define ThrowICONWriterException(exception,message) \
|
|
{ \
|
|
directory=RelinquishIconDirectory(directory); \
|
|
images=DestroyImageList(images); \
|
|
ThrowWriterException(exception,message) \
|
|
}
|
|
|
|
const char
|
|
*option;
|
|
|
|
const Quantum
|
|
*p;
|
|
|
|
IconDirectory
|
|
*directory;
|
|
|
|
Image
|
|
*images,
|
|
*frame;
|
|
|
|
MagickBooleanType
|
|
adjoin,
|
|
status;
|
|
|
|
MagickOffsetType
|
|
offset,
|
|
scene;
|
|
|
|
size_t
|
|
bytes_per_line,
|
|
number_scenes,
|
|
png_size,
|
|
scanline_pad;
|
|
|
|
ssize_t
|
|
i,
|
|
x,
|
|
y;
|
|
|
|
unsigned char
|
|
*pixels,
|
|
*q;
|
|
|
|
/*
|
|
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);
|
|
assert(exception != (ExceptionInfo *) NULL);
|
|
assert(exception->signature == MagickCoreSignature);
|
|
status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
|
|
if (status == MagickFalse)
|
|
return(status);
|
|
images=(Image *) NULL;
|
|
adjoin=image_info->adjoin;
|
|
option=GetImageOption(image_info,"icon:auto-resize");
|
|
if (option != (const char *) NULL)
|
|
{
|
|
images=AutoResizeImage(image,option,&scene,exception);
|
|
if (images == (Image *) NULL)
|
|
ThrowWriterException(ImageError,"InvalidDimensions");
|
|
adjoin=MagickTrue;
|
|
}
|
|
else
|
|
{
|
|
scene=0;
|
|
frame=image;
|
|
do
|
|
{
|
|
if ((image->columns > 512L) || (image->rows > 512L))
|
|
ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
|
|
scene++;
|
|
frame=SyncNextImageInList(frame);
|
|
} while ((frame != (Image *) NULL) && (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);
|
|
frame=(images != (Image *) NULL) ? images : image;
|
|
number_scenes=0;
|
|
do
|
|
{
|
|
number_scenes++;
|
|
(void) WriteBlobByte(image,0); /* width */
|
|
(void) WriteBlobByte(image,0); /* height */
|
|
(void) WriteBlobByte(image,0); /* colors */
|
|
(void) WriteBlobByte(image,0); /* reserved */
|
|
(void) WriteBlobLSBShort(image,0); /* planes */
|
|
(void) WriteBlobLSBShort(image,0); /* bits_per_pixel */
|
|
(void) WriteBlobLSBLong(image,0); /* size */
|
|
(void) WriteBlobLSBLong(image,0); /* offset */
|
|
frame=SyncNextImageInList(frame);
|
|
} while ((frame != (Image *) NULL) && (adjoin != MagickFalse));
|
|
scene=0;
|
|
frame=(images != (Image *) NULL) ? images : image;
|
|
directory=AcquireIconDirectory(number_scenes);
|
|
if (directory == (IconDirectory *) NULL)
|
|
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
|
|
png_size=0;
|
|
option=GetImageOption(image_info,"icon:png-compression-size");
|
|
if (option != (const char*)NULL)
|
|
png_size=(size_t) StringToDouble(option,(char**) NULL);
|
|
do
|
|
{
|
|
size_t
|
|
size;
|
|
|
|
unsigned short
|
|
bits_per_pixel,
|
|
planes;
|
|
|
|
if (ShouldCompressAsPng(frame,png_size) != MagickFalse)
|
|
{
|
|
Image
|
|
*write_image;
|
|
|
|
ImageInfo
|
|
*write_info;
|
|
|
|
size_t
|
|
length;
|
|
|
|
unsigned char
|
|
*png;
|
|
|
|
write_image=CloneImage(frame,0,0,MagickTrue,exception);
|
|
if (write_image == (Image *) NULL)
|
|
{
|
|
directory=RelinquishIconDirectory(directory);
|
|
images=DestroyImageList(images);
|
|
return(MagickFalse);
|
|
}
|
|
write_info=CloneImageInfo(image_info);
|
|
length=0;
|
|
/*
|
|
Don't write any ancillary chunks except for gAMA,tRNS.
|
|
*/
|
|
(void) SetImageArtifact(write_image,"png:include-chunk",
|
|
"none,gama,tRNS");
|
|
/*
|
|
Only write PNG32 formatted PNG (32-bit RGBA), 8 bits per channel.
|
|
*/
|
|
(void) CopyMagickString(write_info->magick,"PNG32",MagickPathExtent);
|
|
png=(unsigned char *) ImageToBlob(write_info,write_image,&length,
|
|
exception);
|
|
write_image=DestroyImageList(write_image);
|
|
write_info=DestroyImageInfo(write_info);
|
|
if (png == (unsigned char *) NULL)
|
|
{
|
|
directory=RelinquishIconDirectory(directory);
|
|
images=DestroyImageList(images);
|
|
return(MagickFalse);
|
|
}
|
|
directory->icons[scene]->width=0;
|
|
directory->icons[scene]->height=0;
|
|
directory->icons[scene]->colors=0;
|
|
directory->icons[scene]->reserved=0;
|
|
directory->icons[scene]->planes=1;
|
|
directory->icons[scene]->bits_per_pixel=32;
|
|
directory->icons[scene]->size=(size_t) length;
|
|
directory->icons[scene]->offset=(size_t) TellBlob(image);
|
|
(void) WriteBlob(image,(size_t) length,png);
|
|
png=(unsigned char *) RelinquishMagickMemory(png);
|
|
}
|
|
else
|
|
{
|
|
size_t
|
|
image_size,
|
|
number_colors,
|
|
x_pixels,
|
|
y_pixels;
|
|
|
|
ssize_t
|
|
width,
|
|
height;
|
|
|
|
/*
|
|
Initialize ICON raster file header.
|
|
*/
|
|
(void) TransformImageColorspace(frame,sRGBColorspace,exception);
|
|
if ((frame->storage_class != DirectClass) && (frame->colors > 256))
|
|
(void) SetImageStorageClass(frame,DirectClass,exception);
|
|
if (frame->storage_class == DirectClass)
|
|
{
|
|
/*
|
|
Full color ICON raster.
|
|
*/
|
|
number_colors=0;
|
|
bits_per_pixel=32;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
Colormapped ICON raster.
|
|
*/
|
|
bits_per_pixel=8;
|
|
if (frame->colors <= 16)
|
|
bits_per_pixel=4;
|
|
if (frame->colors <= 2)
|
|
bits_per_pixel=1;
|
|
number_colors=(size_t) 1 << bits_per_pixel;
|
|
if (number_colors < frame->colors)
|
|
{
|
|
(void) SetImageStorageClass(frame,DirectClass,exception);
|
|
number_colors=0;
|
|
bits_per_pixel=(unsigned short) 24;
|
|
}
|
|
}
|
|
bytes_per_line=(((frame->columns*bits_per_pixel)+31U) &
|
|
~31U) >> 3;
|
|
width=(ssize_t) frame->columns;
|
|
height=(ssize_t) frame->rows;
|
|
planes=1;
|
|
image_size=bytes_per_line*frame->rows;
|
|
size=40;
|
|
size+=(4*number_colors);
|
|
size+=image_size;
|
|
size+=(size_t) ((((width+31U) & ~31U) >> 3)*height);
|
|
x_pixels=0;
|
|
y_pixels=0;
|
|
switch (frame->units)
|
|
{
|
|
case UndefinedResolution:
|
|
case PixelsPerInchResolution:
|
|
{
|
|
x_pixels=(size_t) (100.0*frame->resolution.x/2.54);
|
|
y_pixels=(size_t) (100.0*frame->resolution.y/2.54);
|
|
break;
|
|
}
|
|
case PixelsPerCentimeterResolution:
|
|
{
|
|
x_pixels=(size_t) (100.0*frame->resolution.x);
|
|
y_pixels=(size_t) (100.0*frame->resolution.y);
|
|
break;
|
|
}
|
|
}
|
|
/*
|
|
Convert MIFF to ICON raster pixels.
|
|
*/
|
|
pixels=(unsigned char *) AcquireQuantumMemory(image_size,
|
|
sizeof(*pixels));
|
|
if (pixels == (unsigned char *) NULL)
|
|
ThrowICONWriterException(ResourceLimitError,"MemoryAllocationFailed");
|
|
(void) memset(pixels,0,image_size);
|
|
switch (bits_per_pixel)
|
|
{
|
|
case 1:
|
|
{
|
|
size_t
|
|
bit,
|
|
byte;
|
|
|
|
/*
|
|
Convert PseudoClass image to a ICON monochrome image.
|
|
*/
|
|
for (y=0; y < (ssize_t) frame->rows; y++)
|
|
{
|
|
p=GetVirtualPixels(frame,0,y,frame->columns,1,exception);
|
|
if (p == (const Quantum *) NULL)
|
|
break;
|
|
q=pixels+((ssize_t) frame->rows-y-1)*(ssize_t) bytes_per_line;
|
|
bit=0;
|
|
byte=0;
|
|
for (x=0; x < (ssize_t) frame->columns; x++)
|
|
{
|
|
byte<<=1;
|
|
byte|=(size_t) (GetPixelIndex(frame,p) != 0 ? 0x01 : 0x00);
|
|
bit++;
|
|
if (bit == 8)
|
|
{
|
|
*q++=(unsigned char) byte;
|
|
bit=0;
|
|
byte=0;
|
|
}
|
|
p+=(ptrdiff_t) GetPixelChannels(frame);
|
|
}
|
|
if (bit != 0)
|
|
*q++=(unsigned char) (byte << (8-bit));
|
|
if (frame->previous == (Image *) NULL)
|
|
{
|
|
status=SetImageProgress(frame,SaveImageTag,y,frame->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) frame->rows; y++)
|
|
{
|
|
p=GetVirtualPixels(frame,0,y,frame->columns,1,exception);
|
|
if (p == (const Quantum *) NULL)
|
|
break;
|
|
q=pixels+((ssize_t) frame->rows-y-1)*(ssize_t) bytes_per_line;
|
|
nibble=0;
|
|
byte=0;
|
|
for (x=0; x < (ssize_t) frame->columns; x++)
|
|
{
|
|
byte<<=4;
|
|
byte|=((size_t) GetPixelIndex(frame,p) & 0x0f);
|
|
nibble++;
|
|
if (nibble == 2)
|
|
{
|
|
*q++=(unsigned char) byte;
|
|
nibble=0;
|
|
byte=0;
|
|
}
|
|
p+=(ptrdiff_t) GetPixelChannels(frame);
|
|
}
|
|
if (nibble != 0)
|
|
*q++=(unsigned char) (byte << 4);
|
|
if (frame->previous == (Image *) NULL)
|
|
{
|
|
status=SetImageProgress(frame,SaveImageTag,y,frame->rows);
|
|
if (status == MagickFalse)
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case 8:
|
|
{
|
|
/*
|
|
Convert PseudoClass packet to ICON pixel.
|
|
*/
|
|
for (y=0; y < (ssize_t) frame->rows; y++)
|
|
{
|
|
p=GetVirtualPixels(frame,0,y,frame->columns,1,exception);
|
|
if (p == (const Quantum *) NULL)
|
|
break;
|
|
q=pixels+((ssize_t) frame->rows-y-1)*(ssize_t) bytes_per_line;
|
|
for (x=0; x < (ssize_t) frame->columns; x++)
|
|
{
|
|
*q++=(unsigned char) GetPixelIndex(frame,p);
|
|
p+=(ptrdiff_t) GetPixelChannels(frame);
|
|
}
|
|
if (frame->previous == (Image *) NULL)
|
|
{
|
|
status=SetImageProgress(frame,SaveImageTag,y,frame->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) frame->rows; y++)
|
|
{
|
|
p=GetVirtualPixels(frame,0,y,frame->columns,1,exception);
|
|
if (p == (const Quantum *) NULL)
|
|
break;
|
|
q=pixels+((ssize_t) frame->rows-y-1)*(ssize_t) bytes_per_line;
|
|
for (x=0; x < (ssize_t) frame->columns; x++)
|
|
{
|
|
*q++=ScaleQuantumToChar(GetPixelBlue(frame,p));
|
|
*q++=ScaleQuantumToChar(GetPixelGreen(frame,p));
|
|
*q++=ScaleQuantumToChar(GetPixelRed(frame,p));
|
|
if (frame->alpha_trait == UndefinedPixelTrait)
|
|
*q++=ScaleQuantumToChar(QuantumRange);
|
|
else
|
|
*q++=ScaleQuantumToChar(GetPixelAlpha(frame,p));
|
|
p+=(ptrdiff_t) GetPixelChannels(frame);
|
|
}
|
|
if (bits_per_pixel == 24)
|
|
for (x=3L*(ssize_t) frame->columns; x < (ssize_t) bytes_per_line; x++)
|
|
*q++=0x00;
|
|
if (frame->previous == (Image *) NULL)
|
|
{
|
|
status=SetImageProgress(frame,SaveImageTag,y,frame->rows);
|
|
if (status == MagickFalse)
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
/*
|
|
Write 40-byte version 3+ bitmap header.
|
|
*/
|
|
/* The value 0 is accepted as representing a width of 256 */
|
|
directory->icons[scene]->width=(unsigned char) width % 256;
|
|
directory->icons[scene]->height=(unsigned char) height % 256;
|
|
directory->icons[scene]->colors=(unsigned char) number_colors;
|
|
directory->icons[scene]->reserved=0;
|
|
directory->icons[scene]->planes=planes;
|
|
directory->icons[scene]->bits_per_pixel=bits_per_pixel;
|
|
directory->icons[scene]->size=size;
|
|
directory->icons[scene]->offset=(size_t) TellBlob(image);
|
|
(void) WriteBlobLSBLong(image,(unsigned int) 40);
|
|
(void) WriteBlobLSBLong(image,(unsigned int) width);
|
|
(void) WriteBlobLSBLong(image,(unsigned int) height*2);
|
|
(void) WriteBlobLSBShort(image,planes);
|
|
(void) WriteBlobLSBShort(image,bits_per_pixel);
|
|
(void) WriteBlobLSBLong(image,(unsigned int) IconRgbCompression);
|
|
(void) WriteBlobLSBLong(image,(unsigned int) image_size);
|
|
(void) WriteBlobLSBLong(image,(unsigned int) x_pixels);
|
|
(void) WriteBlobLSBLong(image,(unsigned int) y_pixels);
|
|
(void) WriteBlobLSBLong(image,(unsigned int) number_colors);
|
|
(void) WriteBlobLSBLong(image,(unsigned int) number_colors);
|
|
if (frame->storage_class == PseudoClass)
|
|
{
|
|
unsigned char
|
|
*icon_colormap;
|
|
|
|
/*
|
|
Dump colormap to file.
|
|
*/
|
|
icon_colormap=(unsigned char *) AcquireQuantumMemory((size_t) 1UL
|
|
<< bits_per_pixel,4UL*sizeof(*icon_colormap));
|
|
if (icon_colormap == (unsigned char *) NULL)
|
|
ThrowICONWriterException(ResourceLimitError,
|
|
"MemoryAllocationFailed");
|
|
q=icon_colormap;
|
|
for (i=0; i < (ssize_t) frame->colors; i++)
|
|
{
|
|
*q++=ScaleQuantumToChar((Quantum) frame->colormap[i].blue);
|
|
*q++=ScaleQuantumToChar((Quantum) frame->colormap[i].green);
|
|
*q++=ScaleQuantumToChar((Quantum) frame->colormap[i].red);
|
|
*q++=(unsigned char) 0x00;
|
|
}
|
|
for ( ; i < (ssize_t) 1UL << 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 << bits_per_pixel)),
|
|
icon_colormap);
|
|
icon_colormap=(unsigned char *) RelinquishMagickMemory(
|
|
icon_colormap);
|
|
}
|
|
(void) WriteBlob(image,image_size,pixels);
|
|
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
|
|
/*
|
|
Write matte mask.
|
|
*/
|
|
scanline_pad=(((frame->columns+31U) & ~31U)-frame->columns) >> 3;
|
|
for (y=((ssize_t) frame->rows - 1); y >= 0; y--)
|
|
{
|
|
unsigned char
|
|
bit,
|
|
byte;
|
|
|
|
p=GetVirtualPixels(frame,0,y,frame->columns,1,exception);
|
|
if (p == (const Quantum *) NULL)
|
|
break;
|
|
bit=0;
|
|
byte=0;
|
|
for (x=0; x < (ssize_t) frame->columns; x++)
|
|
{
|
|
byte<<=1;
|
|
if ((frame->alpha_trait != UndefinedPixelTrait) &&
|
|
(GetPixelAlpha(frame,p) == (Quantum) TransparentAlpha))
|
|
byte|=0x01;
|
|
bit++;
|
|
if (bit == 8)
|
|
{
|
|
(void) WriteBlobByte(image,(unsigned char) byte);
|
|
bit=0;
|
|
byte=0;
|
|
}
|
|
p+=(ptrdiff_t) GetPixelChannels(frame);
|
|
}
|
|
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(frame) == (Image *) NULL)
|
|
break;
|
|
status=SetImageProgress(frame,SaveImagesTag,scene++,number_scenes);
|
|
if (status == MagickFalse)
|
|
break;
|
|
frame=SyncNextImageInList(frame);
|
|
} while ((frame != (Image *) NULL) && (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;
|
|
frame=(images != (Image *) NULL) ? images : image;
|
|
do
|
|
{
|
|
(void) WriteBlobByte(image,directory->icons[scene]->width);
|
|
(void) WriteBlobByte(image,directory->icons[scene]->height);
|
|
(void) WriteBlobByte(image,directory->icons[scene]->colors);
|
|
(void) WriteBlobByte(image,directory->icons[scene]->reserved);
|
|
(void) WriteBlobLSBShort(image,directory->icons[scene]->planes);
|
|
(void) WriteBlobLSBShort(image,directory->icons[scene]->bits_per_pixel);
|
|
(void) WriteBlobLSBLong(image,(unsigned int)
|
|
directory->icons[scene]->size);
|
|
(void) WriteBlobLSBLong(image,(unsigned int)
|
|
directory->icons[scene]->offset);
|
|
scene++;
|
|
frame=SyncNextImageInList(frame);
|
|
} while ((frame != (Image *) NULL) && (adjoin != MagickFalse));
|
|
directory=RelinquishIconDirectory(directory);
|
|
(void) CloseBlob(image);
|
|
images=DestroyImageList(images);
|
|
return(MagickTrue);
|
|
}
|