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