diff options
Diffstat (limited to 'Master/tlpkg/tlgs/lib/viewgif.ps')
| -rw-r--r-- | Master/tlpkg/tlgs/lib/viewgif.ps | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/Master/tlpkg/tlgs/lib/viewgif.ps b/Master/tlpkg/tlgs/lib/viewgif.ps deleted file mode 100644 index 7cfe8af829d..00000000000 --- a/Master/tlpkg/tlgs/lib/viewgif.ps +++ /dev/null @@ -1,160 +0,0 @@ -% Copyright (C) 1989, 1992, 1993, 1998 Aladdin Enterprises. All rights reserved.
-%
-% This software is provided AS-IS with no warranty, either express or
-% implied.
-%
-% This software is distributed under license and may not be copied,
-% modified or distributed except as expressly authorized under the terms
-% of the license contained in the file LICENSE in this distribution.
-%
-% For more information about licensing, please refer to
-% http://www.ghostscript.com/licensing/. For information on
-% commercial licensing, go to http://www.artifex.com/licensing/ or
-% contact Artifex Software, Inc., 101 Lucas Valley Road #110,
-% San Rafael, CA 94903, U.S.A., +1(415)492-9861.
-
-% $Id: viewgif.ps 6300 2005-12-28 19:56:24Z giles $
-% viewgif.ps
-% Display a GIF file.
-
-/read1 % <file> read1 <int>
- { read pop
- } bind def
-/read2 % <file> read2 <int>
- { dup read1 exch read1 8 bitshift add
- } bind def
-
-/readGIFheader % <file> readGIFheader <dict>
- { 20 dict begin
- dup 6 string readstring pop
- dup (GIF87a) eq exch (GIF89a) eq or not
- { (Not a GIF file.\n) print cleartomark stop
- } if
- dup read2 /Width exch def
- dup read2 /Height exch def
- dup read1
- dup 128 ge /GlobalColor exch def
- dup -4 bitshift 7 and 1 add /BitsPerPixel exch def %***BOGUS?***
- dup 8 and 0 ne /PaletteSorted exch def
- 7 and 1 add dup /BitsPerPixel exch def
- 1 exch bitshift /PaletteSize exch def
- dup read1 /BackgroundIndex exch def
- dup read1 15 add 64 div /AspectRatio exch def
- GlobalColor
- { PaletteSize 3 mul string readstring pop
- /GlobalPalette exch def
- } if
- currentdict end
- } bind def
-
-/readGIFimageHeader % <file> readGIFimageHeader <dict>
- % Note: GIF header must be on dict stack
- { 10 dict begin
- { dup read1
- dup (!) 0 get ne { exit } if pop % extension
- dup read1 pop
- { dup read1 dup 0 eq { pop exit } if { dup read1 pop } repeat
- } loop
- } loop
- (,) 0 get ne
- { (Not a GIF image.\n) print stop
- } if
- dup read2 /Left exch def
- dup read2 /Top exch def
- dup read2 /Width exch def
- dup read2 /Height exch def
- dup read1
- dup 128 ge /LocalColor exch def
- dup 64 and 0 ne /Interlaced exch def
- LocalColor
- { 7 and 1 add /BitsPerPixel exch def
- 1 BitsPerPixel bitshift 3 mul string readstring pop
- /Palette exch def
- }
- { pop pop /Palette GlobalPalette def
- }
- ifelse
- currentdict end
- } bind def
-
-/imageGIF % <imagedict> imageGIF
- { /ImageOut where
- { pop
- % We know BitsPerComponent = 8, Decode = [0 255].
- % and there is only a single data source which is
- % either a filter or a string whose size is exactly
- % the width of the row.
- dup /DataSource get dup type /stringtype eq
- { ImageOut exch writestring
- }
- { pop dup /Width get string
- 1 index /Height get
- { 1 index /DataSource get 1 index readstring pop
- ImageOut exch writestring
- }
- repeat pop pop
- }
- ifelse
- }
- { image
- }
- ifelse
- } bind def
-
-/viewGIF % <file|string> viewGIF -
- { save 20 dict begin
- /saved exch def
- dup type /stringtype eq { (r) file } if
- /F exch def
- /ImageOutFile where { /ImageOut ImageOutFile (w) file def } if
- F readGIFheader /Header exch def
- currentdict Header end begin begin
- VGIFDEBUG { Header { exch == == } forall (----------------\n) print flush } if
- F readGIFimageHeader /ImageHeader exch def
- currentdict ImageHeader end begin begin
- VGIFDEBUG { ImageHeader { exch == == } forall (----------------\n) print flush } if
- /D F
- << /InitialCodeLength F read1
- /FirstBitLowOrder true
- /BlockData true
- /EarlyChange 0
- >> /LZWDecode filter def
-
- [/Indexed /DeviceRGB 1 BitsPerPixel bitshift 1 sub Palette] setcolorspace
- matrix currentmatrix
- 0 1 3 { 2 copy get dup 0 ne { dup abs div } if 3 copy put pop pop } for
- setmatrix
- << /ImageType 1
- /ImageMatrix [1 0 0 -1 0 Height]
- /BitsPerComponent 8
- /Decode [0 255]
- Interlaced
- { /Width Width /Height 1
- /row Width string def
- /DataSource row
- >> /I exch def
- /inter % <num> <denom> inter -
- { /denom exch def /num exch def
- gsave
- /lines Height denom 1 sub add num sub denom idiv def
- 0 1 lines 1 sub {
- Height exch denom mul num add sub
- I /ImageMatrix get 5 3 -1 roll put
- D row readstring pop pop
- I imageGIF
- } for
- grestore
- }
- bind def
- 0 8 inter
- 4 8 inter
- 2 4 inter
- 1 2 inter
- }
- { /Width Width /Height Height
- /DataSource D
- >> imageGIF
- }
- ifelse
- saved end end end restore
- } bind def
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