3 Release Plans (subject to change)
6 brown-bag bugs may add intermediate releases. The dates are goals,
11 - check remaining memory allocation calls for integer overflows
12 http://rt.cpan.org/NoAuth/Bug.html?id=8213
13 - check *alloc() calls
14 - check llist_push() calls
16 - fix Imager::Color warning when $ENV{HOME} isn't set from
17 _get_gimp_color() (done)
18 http://rt.cpan.org/NoAuth/Bug.html?id=13143
20 - module version numbers (done)
21 http://rt.cpan.org/NoAuth/Bug.html?id=13047
23 - allow limits to be set on the size of an image read from a file. This is
24 to prevent an attacker supplying huge images that consume all of
25 memory causing a denial of service attack. (done)
27 - implement gsamp()/gsampf()/plin() etc methods for those low level image
28 interfaces which don't yet have methods.
33 - add Imager::Tutorial (see Tk::UserGuide for a structure)
34 don't cover installation - belongs in README or INSTALL
35 it doesn't need to cover everything - read/write/create/simple drawing
36 and simple text - other stuff belongs in the cookbook or in sample code
38 - add 5 more recipes to Imager::Cookbook
40 - implement i_incomplete for png and gif files.
42 - documentation audit, check:
43 - every method has at least one example, but if the method is complex
44 (like transform2, to_paletted, string() for example) it should include
46 - check each method description to ensure it's reasonably clear.
47 - check POD sections (SEE ALSO in particular)
48 - multiple examples for writing GIF images.
49 - name arguments and use those names in the documentation
50 http://nntp.perl.org/group/perl.perl5.porters/102434
51 (#1521, #5608, #8231, #11429, #13058)
53 - have $img->read() act like ($img) = Imager->read_multi() on GIFs
55 - figure out what the nearest_color filter does, and document it
59 - rework handling of antialiasing and other transparency against
65 - anything that uses combine (fills in particular)
66 - image scaling? and matrix_transform()'s interpolation
67 http://rt.cpan.org/NoAuth/Bug.html?id=11972
74 Some of what's listed below has been implemented.
76 - should i_incomplete be optional? ie. reading a short image results in
77 an error unless the user requests incomplete images.
80 - Add scalar/mmap to iolayer
81 - Add close() code to iolayer for fakeseek sources.
82 - Merge callback interface into iolayer
84 - Implment the maxread threshold (Indicates how much can
85 be read from a source before it stops reading from its
86 underlying source. For making sure only the relevant
87 data is read from a socket for example.
89 Enhanched internal structure:
91 MultiImage & metadata support:
92 - Figure what interface should be between C and perl?
93 - How to store data in the C interface for tags/metadata?
94 Support tiff's madness, i.e. tags and options.
95 - Error handling, make a general i_errstr object and arrange
96 such that each image has an i_errstr object to hold its
98 - SEE design/represent.txt for proposed new structure and
99 interface design that takes these factors into account.
100 - define common i_* tags for specifying attribute common among images
101 like spatial resolution (implement for other image types, especially
102 TIFF) (Spatial resolution is supported for all types that support
103 it - are there any other common properties we can add?)
104 - implement the i_incomplete tag for other formats
107 - Add mng support, pcx and aalib support.
108 - Windows icon files (.ico)
109 - ILBM (Amiga) images
110 - photoshop files (I think I've seen docs)
113 - WMF (extract bitmap data on read)
114 - gzip or bzip2 compressed raw
115 - postscript for output
116 - PAM file support (man pam in recent PNM tools)
118 - Transforms, interpolated multidimensional lookup tables.
119 Usefull for CMYK <-> RGB table lookup.
121 - advanced font layout (spacing, kerning, alignment) (Artur?)
123 - ways to check if characters are present in a font, eg. checking if
124 ligatures are present (done for FreeType2)
126 - font synthesis - synthesize a bold or slanted font from a normal font
127 (or even from an existing bold or slanted font)
129 - utf8 support for text output
130 (available for FT1, freetype2, should be easy for Win32)
132 - easy interfaces for text output:
133 - align text around point, including:
134 - left, center, right horizontal alignment
135 - top, center, baseline, bottom alignment
136 - choose whether to base alignment upon character cells or font
137 metrics to avoid spacing problems between lines
138 - fill a box from text, with newline handling
139 - an option to just return the information that would be used to
140 output the text, so it can be used for sizing calculations
141 - how much text fit in the box/how much space is left in the box
142 - fill a box with rich text (size and font changes)
144 - wrapping around boxes/images
147 - tools to get more information about fonts/characters:
148 - name of font "Arial Bold Italic" vs "arialbi.ttf"
149 - ABC widths for characters (currently the only way to get the C width
150 for a character is to get the width with a following space and without
154 - encodings for text output (maybe using the Encode module to work
157 - image rotation, 3 ways of doing rotation:
158 - rotation by shearing, which produces makes lengths in the image larger,
160 (2 of the 3 have been done)
162 - read_multi() needs to handle other multi-image types,
163 (handles TIFF and GIF)
165 - write_multi() to save other multi-image types, (handles TIFF and GIF)
166 - pnm binary formats support multiple images per file
168 - compose channels - build a new image based on channels from several
173 - complex lines/curves:
175 - dotted/dashed lines
177 - end-point controls (butt-end, square-end, round-end, pointy, arrows)
178 - brush-lines (as with the Gimp, or Photoshop)
179 - more complex with multiple strokes and various randomness as with
180 Fractal Design Painter (or later versions of Corel Photo Paint)
181 - complex line shapes:
183 - general curves (cubic or bezier, whichever is more general)
184 - easy access to general curves:
185 - points to make a nice curve from
186 - various circular curves (centre, radii, start/end angles,
188 - Complex thick lines are probably more useful than brush-lines for
189 the things I expect Imager to be used for.
190 - http://www.develop-help.com/imager/strokes.png (.jpg for smaller version)
192 - have Imager::Color{::Float}? use Graphics::ColorNames if present.
195 - Make sure everything is doable with the OO interface
196 i_flood_fill() for example.
197 - include low-level functions like gsamp() and so on
199 - Compile with memory debugging enabled and fix all leaks
201 - Add mycalloc() memory allocation wrappers.
203 - should we overload <=> or cmp for Imager::Color objects?
204 too many worms, leave it out
206 - should the interlace option for reading raw images have
207 symbolic names in the OO interface?
209 - improve consistency in the interfaces, both in trying to use named
210 parameters where possible but also in using consistent names, eg.
211 (tx, ty) vs (left, top) in rubthrough() vs paste(). Do we want a (simple)
212 standard for this (suggested names)? Remember to preserve the old
213 interface where possible.
215 - try to clean up the inconsistencies between font types:
216 - utf8 (even if we just treat characters over 0xFF as missing for T1)
217 (done for FT2, FT1, T1)
218 - transformations (done for FT2)
219 - has_char() method (done for FT2, FT1, T1)
221 Format specific issues:
222 - provide patches for libgif and libungif that fix their bugs
223 and give a useful extension interface. Probe for the
224 installation of the patches in Makefile.PL to let gif.c
225 know what features it can use.
227 - Add options for pnm writer to save in any of the p1..P6
228 formats. Even if the input has 1 channel, write 3 and such
229 cases. Also allow ascii mode. Need to be able to write
230 pbm images which needs ties to the quantization code.
232 - save paletted images as paletted where that's supported. Done
233 for gif/tga/bmp/tiff. Not done for png yet.
235 - read other format paletted images as paletted images. This has
236 been done for gif/tga/bmp/tiff formats but not for png.
238 - read/write 16-bit/sample images as such for tiff
240 - read more metadata from images, esp tiff tags, EXIF format information
243 - handle 16-bit/sample pgm/ppm files
245 - "jpeg lossless rotation" - directly manipulates the JPEG
246 representation to rotate, scale or in some limited cases, crop an
250 - Add to the documentation
252 - sample code and Imager/Samples.pod describing them
253 - Imager/Cookbook.pod
254 - Write a guide to installing the helper libraries
255 - Go through the entire project and add comments in pod
256 so doco.perl can be used to read them.
257 - see the IRC log in design/doclayout.txt
262 - use prompt() (from ExtUtils::MakeMaker) for questions in Makefile.PL
263 - use the library's mechanism's to find the library if needed, for
264 example, freetype-config for FT2
265 - the freetype2 library is built as "freetype.lib" on Win32 and needs
266 to be renamed to be found by the configuration process and included
267 with -lfreetype. Try to work around that.
268 - freetype2 and freetype1 tend to be installed in /usr/include/freetype2
269 and /usr/include/freetype directories, or similarly named (somedir/freetype
270 for example), instead of putting these directly into the search path
271 search for the freetype{2}?/someheader and then add the subdirectory if
272 we find the file in that directory.
273 - switch to Test::More
274 - change headers to use more unique re-include protection macros
276 Old release checklists
277 ----------------------
279 0.44: (december 2004)
280 - set i_format for every file type on read and test for it:
285 - rgb - no read function anyway
290 - check each file reader for possible integer overflows
298 - check bmp code uses image data offset correctly - done
299 - check quant code for integer overflows - done
300 - check for old URLs (umich and imager.perl.org/~addi/...) - done
303 - resolve fills test failure under 5.8.6/darwin
304 http://www.nntp.perl.org/group/perl.cpan.testers/202802
305 add tests to check if the same problem occurs with other ?: operators
306 - stop tga_header_verify() from spewing junk to stdout (done)
307 - fix i_setcolors_p bug (done)
310 - audit rgb.c and add tests
311 - add META.yml (bypass EU::MM's limited mechanism) (done)
312 - implement i_incomplete for bmp files
313 - check if freetype 2 is faster/slower than freetype 1 with Imager's glyph
314 caching. If FT1 is faster, add caching as a TODO for FT2.
315 - add XS for i_tags_get_string() and test it. It has an apparent problem
316 in C<< sprintf(value, "%d", entry->data); >> since data is a pointer
318 - test and fix problem with fallback value for
319 Imager::Font::BBox->advance_width. (done)
320 - check handling of string() method align parameter. (done, fixed)
321 - i_tt_bbox_inst in font.c uses variable i without ever setting it. (fixed)
322 - add sample CGI that handles an uploaded image (done)
323 - examples for fountain filter in Imager::Filters (done)
324 - allow Imager::Fountain to take color descriptions (eg. blue, FF000)
325 instead of color objects for c0 and c1 (done)
326 - support newer GIMP gradient files with the Name line (done)
327 - provide access to right-side bearing information from the bounding box
328 function (done for all drivers)
329 - capture TIFF read warnings (i_warnings tag?) (done)
330 - Imager::Matrix2d rotate method only applies offset if both x and y
331 are non-zero, it should do it if either is non-zero (done)
332 - add Imager::Cookbook with at least 5 recipes (done)
333 - store floating point tags in an appropriate precision (done)
334 - allow image creation to fail on malloc() failure for the image data
335 rather than aborting. The current behaviour could be a denial of
336 service attack. This has limited utility because of the way memory
337 over commitment works on Linux (done but reverted)
338 - eliminate unused variable warning (especially the RETVAL ones in Imager.xs)
340 - handle probing for libraries better (use pkg-config or I<library>-config
341 where possible (freetype2 and libpng)) (done)
342 - add concept index to Imager.pm pod (done, still working it)
343 - replace testimg/penguin-base.ppm with a smaller image (done)
344 - add a sample CGI HTML and image generation scripts that work together,
345 with appropriate security management (done)