/usr/include/GraphicsMagick/magick/compress.h is in libgraphicsmagick1-dev 1.3.18-1ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | /*
Copyright (C) 2003 - 2009 GraphicsMagick Group
Copyright (C) 2002 ImageMagick Studio
Copyright 1991-1999 E. I. du Pont de Nemours and Company
This program is covered by multiple licenses, which are described in
Copyright.txt. You should have received a copy of Copyright.txt with this
package; otherwise see http://www.graphicsmagick.org/www/Copyright.html.
Image Compression/Decompression Methods.
*/
#ifndef _MAGICK_COMPRESS_H
#define _MAGICK_COMPRESS_H
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
/*
Typedef declaration.
*/
typedef struct _Ascii85Info
{
long
offset,
line_break;
magick_uint8_t
buffer[10];
} Ascii85Info;
/*
TODO: Clean up the interface between BLOB write functions,
compression functions, and encoding functions so they
may be hooked into/stacked on top of each other. Most are
(or can be changed to be) stream based.
*/
typedef unsigned int
(*WriteByteHook)(Image *, const magick_uint8_t, void *info);
/*
Commonly used byte writer hooks.
*/
extern MagickExport unsigned int
Ascii85WriteByteHook(Image *image, const magick_uint8_t code, void *info),
BlobWriteByteHook(Image *image, const magick_uint8_t code, void *info);
/*
Compress methods.
*/
extern MagickExport MagickPassFail
HuffmanDecodeImage(Image *image),
HuffmanEncodeImage(const ImageInfo *image_info,Image *image),
HuffmanEncode2Image(const ImageInfo *image_info,Image *image,WriteByteHook write_byte,void *info),
LZWEncodeImage(Image *image,const size_t length,magick_uint8_t *pixels),
LZWEncode2Image(Image *image,const size_t length,magick_uint8_t *pixels,WriteByteHook write_byte,void *info),
PackbitsEncodeImage(Image *image,const size_t length,magick_uint8_t *pixels),
PackbitsEncode2Image(Image *image,const size_t length,magick_uint8_t *pixels,WriteByteHook write_byte,void *info);
extern MagickExport unsigned char
*ImageToHuffman2DBlob(const Image *image,const ImageInfo *image_info,
size_t *length,ExceptionInfo *exception),
*ImageToJPEGBlob(const Image *image,const ImageInfo *image_info,
size_t *length,ExceptionInfo *exception);
extern MagickExport void
Ascii85Encode(Image *image,const magick_uint8_t code),
Ascii85Flush(Image *image),
Ascii85Initialize(Image *image);
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif
/*
* Local Variables:
* mode: c
* c-basic-offset: 2
* fill-column: 78
* End:
*/
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