Thu, 20 Mar 2003 07:06:35 +0000
*** empty log message ***
1 t2p TODO list
2 $Id: TODO,v 1.18 2003/03/19 23:06:35 eric Exp $
4 No particular order.
6 -----------------------------------------------------------------------------
8 t2p:
10 * input handlers shouldn't use globals, use pointer to private structure
11 instead.
13 * multiple "-b" options on command line
15 * page labels on command line
17 * pages containing multiple images
18 * spec language needs major changes
19 * split process_page into multiple parts:
20 * open page
21 * add image
22 * close page
24 * overlay G4 images in different colors - use ImageMask and the fill color
26 * crop
28 * page sizes
29 * metric
30 * check page size, if off by too much, generate warning message and
31 use actual scan size
32 * multiple page sizes, pick the right one?
34 * range checking
35 * rotation (0, 90, 180, or 270)
36 * page number style (D, r, R, a, A)
38 * watermarking - in image?
40 * flip, transpose
42 * support PNG, BMP, and other input file formats
44 * generate text, line art - option to embed fonts
46 * bilevel thresholding of color and grey scale input
48 * automatic separation using timify code from Tim Shoppa?
50 * automatic image detection using DCT or FFT
52 * downsampling
54 -----------------------------------------------------------------------------
56 bitblt routines:
58 * finish optimized bitblt code
60 * optimize inner loops in flip_h and flip_v with Duff's Device
62 * check for endian problems
63 * reading TIFF - don't bit-reverse on big-endian machines
64 * rle table
65 * g4_get_pixel()
66 * g4_find_pixel()
68 * g4_find_pixel should use native instructions where available
69 * 386: BSF bit scan forward
70 * PowerPC: CLTLZ, CNTLZW count leasing zeros (CNTLZD 64-bit)
71 * MC68020: BFFFO bit field find first one
72 * Alpha 21264A: CTTZ count trailing zeros
74 -----------------------------------------------------------------------------
76 PDF routines:
78 [Page numbers refer to _Portable Document Format Reference Manual_ by
79 Adobe Systems Incorporated, Addison-Wesley, 1993.]
81 * ModDate and CreationDate keys in Info dict
83 * ID key in trailer dict
85 * proper output of real numbers - variable precision, no exponent
87 * bookmarks (outline) should allow alternate destination specs, currently
88 only /Fit is supported
90 * balance pages tree - currently a degenerate single-level tree, but the
91 PDF spec recommends max. of 6 children per parent
93 * thumbnails
95 * PDF Page rotate attribute (p. 53)?
97 * memory management - need to reference count all structures and free
98 them as appropriate - not necessary for t2p program
100 * when an object is written to the file, set a flag to indicate that
101 it is now immutable
103 * name trees, number trees - when finalize is called, set immutable flag
104 and allow no further changes
106 * buffered streams (vs. current callback mechanism for unbuffered streams)
108 * add support for streams with multiple filters
110 * linearize ("optimize")