1 Imager release history. Older releases can be found in Changes.old
3 Imager 0.64 - unreleased
8 - check that the result of fileno($fh) is defined rather than simply
9 true when read() or write() is supplied with an fh parameter.
10 http://rt.cpan.org/Ticket/Display.html?id=35139
12 - i_scale_axis() wasn't checking the result of i_img_new_ch()
13 resulting in a SIGSEGV when attempting to scale an image to a size
14 too large to fit in memory. This is a NULL pointer access issue,
15 not a buffer overflow.
16 Added a check for the failure.
17 scale_calculate() (and hence scale()) will now fail if any of the
18 scale size parameters are a reference.
19 http://rt.cpan.org/Ticket/Display.html?id=35172
21 - Regression: filling a greyscale image with a hatch used the wrong
22 color channels from the supplied fg/bg colors.
23 https://rt.cpan.org/Ticket/Display.html?id=35278
25 - fixed a related problem for image fills.
27 - Possible security issue: The floating point sample path for image
28 based fills had a buffer overflow. This would overwrite the end of
29 a malloc()ed buffer with double precision floats.
31 Imager 0.63 - 7 April 2008
34 This release primarily contains changes to improve ease of use -
35 rather than you having to convert images to the appropriate number of
36 channels, Imager handles it internally. How to handle drawing colors
37 and the default combine mode is a thornier problem left for some other
40 - the font libraries are now only initialized when needed.
41 http://rt.cpan.org/Ticket/Display.html?id=28825
43 - moved the imtoc.perl code into Imager::Preprocess
45 - paste() and rubthrough() now adapt the source image data to the
46 destination, so you can now safely paste/rubthrough from greyscale
47 images to color images or back, or from alpha channel images to
48 noalpha channels or back.
49 https://rt.cpan.org/Ticket/Display.html?id=30908
51 - rubthrough() now falls back to pasting when the source doesn't have
52 an alpha channel. This effectively treats the source as having a
53 max alpha channel, the right thing to do.
54 http://rt.cpan.org/Ticket/Display.html?id=29944
56 - re-worked most of the area filling code to use a common set of
57 functions when filling.
58 Corrected normal combine mode.
59 Rewrote most of the combine modes to match the way the SVG draft
60 defines them with respect to a translucent source and destination.
61 Added tests for translucent source and destination.
62 Added tests to check 8-bit/sample and double/sample combines work
64 https://rt.cpan.org/Ticket/Display.html?id=29879
66 - writing a 2 or 4 channel image to a JPEG file will now write that
67 image as if composited against a background, black by default,
68 overridable with the i_background tag/parameter.
69 https://rt.cpan.org/Ticket/Display.html?id=29876
71 - writing a 2 or 4 channel image to a PGM/PPM file will now write
72 that image as if composited against a background, black by default,
73 overridable with the i_background tag/parameter.
74 http://rt.cpan.org/Ticket/Display.html?id=30074
76 - writing a 2 or 4 channel image to a BMP file will now write that
77 image as if composited against a background, black by default,
78 overridable with the i_background tag/parameter.
79 http://rt.cpan.org/Ticket/Display.html?id=30075
83 - Imager::Matrix2d->translate() now only requires one of the x or y
85 http://rt.cpan.org/Ticket/Display.html?id=29937
87 - mixing qtype scaling now sets all channels of a pixel to zero if
88 the pixel has zero coverage (zero alpha). This should produce more
89 compressible output files.
90 http://rt.cpan.org/Ticket/Display.html?id=32324
92 - removed the pointless #! line from lib/Imager/Font/Wrap.pm
94 https://bugzilla.redhat.com/show_bug.cgi?id=166254
95 I'm not changing the #! lines of the sample code, since it's sample
96 code, not intended for installation.
97 http://rt.cpan.org/Ticket/Display.html?id=33408
99 - some TGA images weren't being detected correctly as TGA images
100 https://rt.cpan.org/Ticket/Display.html?id=32925
102 - handling of the left-over bit for 16-bit/pixel TGA images has been
103 changed to match the behaviour of the GIMP. Previously the bit
104 being set was treated as an opaque pixel, but one user reported a
105 problem with loading such an image. I haven't been able to find any
106 tools beyond the GIMP that handle alpha-channel 16-bit TGAs, so
107 I'll match it's behaviour. See issue 114913 in the GIMP's
109 http://rt.cpan.org/Ticket/Display.html?id=32926
111 Imager 0.62 - 10 December 2007
114 - Makefile.PL now expands ~/path supplied to --incpath or --libpath
115 to /path under your home directory.
116 http://rt.cpan.org/Ticket/Display.html?id=29484
118 - the old dynaload code used Mach API functions to load dynamic
119 libraries on Mac OS X. These APIs have been deprecated in OS X
120 10.5 and were causing some build problems.
121 So henceforth Imager uses the dlopen() family of functions, and you
122 will need version 10.3 or later of OS X.
124 - added the det() function to the transform2() engine.
125 added the sample quad_to_square.pl
126 Courtesy Richard Fairhurst.
127 http://rt.cpan.org/Ticket/Display.html?id=31244
131 - samples/gifscale.pl sourced the base value for gif_top from
133 Thanks to Eleneldil G. Arilou for pointing this out.
135 - t/t82inline.t no longer loads B at runtime, to work around a bug
136 in some 5.005_0[45] installations.
137 http://rt.cpan.org/Ticket/Display.html?id=30508
139 - work around Module::Depends::Intrusive bug #21229
140 http://rt.cpan.org/Ticket/Display.html?id=30520
142 - the hardinvert filter no-longer inverts the alpha channel.
143 http://rt.cpan.org/Ticket/Display.html?id=30002
145 - the hardinvert filter now supports large samples
147 Imager 0.61_02 - 28 November 2007
150 - major TIFF support re-work
151 http://rt.cpan.org/Ticket/Display.html?id=20329
153 - added a C level image interface for accessing samples from 1-32
154 bits, exposed this at the perl level in getsamples()
156 - the conv filter now works at floating point precision for high bit
159 - added is_bilevel method to test whether an image should be written as
160 a bilevel image if the image format supports it.
162 - added -log-stderr as an Imager import list option
164 - added some important types to Imager::APIRef
166 - added test_image_double() to Imager::Test
170 - Imager::Fountain couldn't read GIMP gradient files with 10 or more
173 - the scale() method with qtype mixing now handles images with an
174 alpha channel correctly.
176 - fixed a broken link from the "animated GIF" entry in the concept index.
177 Thanks to Slaven Rezic.
178 http://rt.cpan.org/Ticket/Display.html?id=30889
180 - on some perl's the infix expression parser test would fail due to
181 actions in the grammar returning false. Made sure all actions return
183 Thanks to Richard Fairhurst for spending a lot of time in tracking
185 http://rt.cpan.org/Public/Bug/Display.html?id=29562
187 Imager 0.61 - 5 November 2007
190 - added samples/gifscale.pl, which adjusts the screen size/position tags
191 when scaling an animated gif
192 http://rt.cpan.org/Ticket/Display.html?id=27591
196 - correct handling of sz in matrix_transform() - this should allow
197 perspective type transformations to work now.
198 http://rt.cpan.org/Ticket/Display.html?id=29936
200 - prevent a cast to integer warning on x64 builds in datatypes.c
201 also fixed some other type warnings
202 https://rt.cpan.org/Ticket/Display.html?id=30204
204 - some sub-directory tests depended on files produced by the parent
206 http://rt.cpan.org/Ticket/Display.html?id=30203
208 - Imager::Font::Wrap doesn't correctly set savepos
209 thanks to Nikita Dedik and Eleneldil G. Arilou for reporting this.
210 http://rt.cpan.org/Ticket/Display.html?id=29771
212 - test 171 in t/t01introvert.t was failing on perls configured to
214 http://rt.cpan.org/Ticket/Display.html?id=29413
216 - the code for the transform2() uminus operator was missing a break.
217 Added tests for better code coverage of the ops.
218 http://rt.cpan.org/Ticket/Display.html?id=29296
220 - the SGI RLE compression code could overflow its compression buffer
221 http://rt.cpan.org/Ticket/Display.html?id=30334
223 - the 32-bit output function used by the SGI code only handled values
224 under 0x10000. This was most noticable when writing large RLE images.
225 http://rt.cpan.org/Ticket/Display.html?id=30335
227 - validate chan_count for chans == NULL for each of the i_gsamp()
229 http://rt.cpan.org/Ticket/Display.html?id=28985
231 - attempt to work around the test failure at
232 http://www.nntp.perl.org/group/perl.cpan.testers/2007/09/msg650810.html
233 http://rt.cpan.org/Ticket/Display.html?id=29562
235 - improve the error messages produced when attempting to read or write
236 an unknown image file format.
237 http://rt.cpan.org/Ticket/Display.html?id=30103
239 - improve the transform2() documentation
240 http://rt.cpan.org/Ticket/Display.html?id=29267
242 - correctly generate the author key in META.yml
243 http://rt.cpan.org/Ticket/Display.html?id=30377
245 - correctly blend a rotated (or matrix_transformed()) image when
246 performing interpolation in the presence of an alpha channel.
247 Also corrected the centring of the rotated image on the output
250 Imager 0.60 - 30 August 2007
253 - Finished/rewrote Arnar's old SGI RGB file format support, so Imager
254 now has full SGI RGB image format, including RLE and 16-bit/sample
256 https://rt.cpan.org/Ticket/Display.html?id=8666
258 - logging functions are now available in the API
260 - applied Gabriel Vasseur's patch
261 added documentation, further tests, and support for greyscale images
262 Obviously problems are my fault :)
263 https://rt.cpan.org/Ticket/Display.html?id=28142
265 - the mask for ICO/CUR images is now applied as an alpha channel to
266 the returned image. For the old behaviour, supply ico_masked => 0
267 to read() or read_multi(). This should be less confusing when
268 using Imager as a general image processor.
269 https://rt.cpan.org/Ticket/Display.html?id=29001
273 - in some cases it's possible for giflib/libungif to return color
274 indexes outside the range of colors defined by the image's palette.
275 We now expand the palette to match the indexes used.
276 Thanks to Gabriel Vasseur for reporting this.
278 - fixed various memory leaks that could occur when failing to read png,
279 jpeg, bmp or tga files.
281 - to avoid confusion, channels not present in the image are returned as
282 zero by getscanline(). This has no effect on the C level i_glin()
283 and i_glinf() API functions which continue to not set the unused
286 - the convert() method now returns an image of the same sample size as
288 https://rt.cpan.org/Ticket/Display.html?id=28492
290 - remove repeated text in Imager::Files
291 http://rt.cpan.org/Ticket/Display.html?id=27589
293 - be even more explicit that scale() and friends don't modify the source
294 image, but return a new image.
295 http://rt.cpan.org/Ticket/Display.html?id=28570
297 - improve the error message from errstr() when you try to load a font
298 for which the driver hasn't been built in Imager.
299 http://rt.cpan.org/Ticket/Display.html?id=27571
301 - transparency is now enabled by default when writing GIF images
302 http://rt.cpan.org/Ticket/Display.html?id=27615
304 - Imager would not load on Windows 98
305 http://rt.cpan.org/Ticket/Display.html?id=27653
307 Imager 0.59 - 14 June 2007
312 - fixes a regression introduced by the fixes for RT 11972
313 http://rt.cpan.org/Ticket/Display.html?id=27546
315 - cropping outside the image would return an Imager object with
316 no low-level image object, instead of returning false.
317 Fixed by: Philip Gwyn (Leolo)
318 http://rt.cpan.org/Ticket/Display.html?id=27509
320 Imager 0.58 - 16 May 2007
323 No significant changes from 0.57_01.
325 Imager 0.57_01 - 11 May 2007
328 - added to_rgb16 to produce a 16-bit/sample version of an image
330 - improve freetype 1.x text output efficiency
334 - search another place for rgb.txt, and check all the places
335 Imager::Color checks when deciding whether to skip testing it
336 http://rt.cpan.org/Ticket/Display.html?id=26064
338 - use a convolution kernel size based on the stddev rather than a
339 fixed size when performing a gaussian blur
340 http://rt.cpan.org/Ticket/Display.html?id=25645
342 - document the difference() method's mindist parameter, and debug it.
344 - put the Imager release number in the Inline::C generated code to
345 regenerate Inline code when a new release of Imager is installed.
346 http://rt.cpan.org/Ticket/Display.html?id=26278
348 - fix rendering on alpha channel images for the FreeType 1.x driver.
349 http://rt.cpan.org/Ticket/Display.html?id=11972
351 - fix rendering on alpha channel images for the T1lib driver.
352 http://rt.cpan.org/Ticket/Display.html?id=11972
354 - reworked library probing, we can now set more than one probe
355 function for a library. Disabled the default (non-freetype-config)
356 library probe and added an extra probe function that searches for
357 both ft2build.h and whatever it includes, and adds -I as needed.
358 Hopefully this will fix build problems like
359 http://www.nntp.perl.org/group/perl.cpan.testers/2007/05/msg472281.html
360 http://rt.cpan.org/Ticket/Display.html?id=26086
362 Imager 0.57 - 30 Apr 2007
365 This is a maintenence release fixing a security issue in Imager.
367 - CRITICAL: a specially crafted compressed BMP file can cause a buffer
368 overflow in malloced memory. There will be further discussion of
369 this issue in the ticket below.
370 http://rt.cpan.org/Ticket/Display.html?id=26811
371 CVE-2007-2459 CVE-2007-2413
372 The descriptions at cve.mitre.org varied in quality, please see the
373 ticket at rt.cpan.org for a more accurate description of the issue.
375 Imager 0.56 - 1 Apr 2007
378 - added support for reading 16-bit/sample PGM/PPM images
380 - added support for writing 16-bit/sample PGM/PPM images
382 - improved performance of reading PBM/PGM/PPM images
384 - added support for writing PBM images if the image is paletted and
385 contains only black and white
387 - added a new make_colors value - "mono"
389 - switched from the svn log Changes to a manual Changes to reduce
392 - new sample code - samples/flasher.pl
396 - CRITICAL: the "Imager" typemap entry (not used by Imager itself)
397 was returning an image object with an extra reference, this
398 resulted in a memory leak.
399 http://rt.cpan.org/Ticket/Display.html?id=24992
401 - fix rendering on alpha channel images for the FreeType 2.x driver
402 http://rt.cpan.org/Ticket/Display.html?id=11972
404 - reading bmp files now consitently handles short reads. You can now
405 supply a parameter to treat a short read as successful and set
407 http://rt.cpan.org/Ticket/Display.html?id=8426
409 - previously, reading ASCII PBM files required spaces between samples,
410 even though the format doesn't require that
412 - improved documentation of the unsharpmask filter (I hope)
413 http://rt.cpan.org/Ticket/Display.html?id=25531
415 - force flushing of the output from i_tt_dump_names() and test output
416 in t/t35ttfont.t to prevent output from being mixed up.
417 https://rt.cpan.org/Ticket/Display.html?id=24859
419 - rewrite a conditional expression as an if() to hopefully work around
420 a bug in the pre-4.0 GCC Apple shipped with OS X 10.4.
421 https://rt.cpan.org/Ticket/Display.html?id=25561
423 - avoid Data::Dumper in regops.perl to support older releases of perl
424 https://rt.cpan.org/Ticket/Display.html?id=24391
426 Imager 0.55 - 16 Dec 2006
429 This is primarily a bug fix release.
431 Note: Test::More is now a pre-requisite for Imager and is no longer bundled.
433 There is one new feature:
435 - the Win32 font driver now supports UTF8 (RT 22166)
436 http://www.cpanforum.com/threads/3276
437 http://rt.cpan.org/Ticket/Display.html?id=22166
439 Several bugs were fixed:
441 - the string() method would not output the string "0"
442 http://rt.cpan.org/Public/Bug/Display.html?id=21770
444 - fills.c was failing to compile on Solaris 10 (compiler unknown)
445 http://rt.cpan.org/Public/Bug/Display.html?id=21944
447 - the gif_disposal and gif_user_input tags weren't being read from
449 http://rt.cpan.org/Public/Bug/Display.html?id=22192
451 - gif.c was failing to build under MSVC
452 http://rt.cpan.org/Ticket/Display.html?id=23922
454 - in some cases strings passed to the string() method were treated as
455 terminated by NUL (chr 0)
456 http://rt.cpan.org/Public/Bug/Display.html?id=21770
458 - on "MSWin32" perl builds we now link to -lzlib instead of -lz since
459 that's the default build name for zlib on Win32.
460 http://rt.cpan.org/Ticket/Display.html?id=23064
462 - search $Config{incpath} for headers too, which we should have been
465 Win32 font driver fixes:
467 - the global descent value from bounding box was the wrong sign
468 http://www.cpanforum.com/threads/3276
470 - if the first or last glyph overflowed the left or right side of the
471 advance width they would be clipped
474 Imager 0.54 - 14 Sep 2006
477 This is primarily a feature release:
479 - a new qtype value 'mixing' has been added to the scale()
480 method. This is faster than 'normal', slower than 'preview'. This
481 is based on the method used by pnmscale, and seems to produce less
482 blurry results than normal.
483 http://rt.cpan.org/Public/Bug/Display.html?id=20677
485 - the rubthrough() method can now render onto images with an alpha
487 http://rt.cpan.org/Ticket/Display.html?id=20678
489 - the read_multi() method now falls back to calling doing a single
490 image read via the read() method and write_multi() will now fall
491 back to calling write() if a single image is supplied. This means
492 you can simply call the read_multi() or write_multi() functions
493 without having to check if the type is formatted by that method.
494 http://rt.cpan.org/Ticket/Display.html?id=19457
495 http://rt.cpan.org/Ticket/Display.html?id=19458
497 - the GIF loop extension can now be written. If you don't have
498 libungif/giflib 4.1.4 (or some distribution's bugfixed equivalent) you
500 http://rt.cpan.org/Ticket/Display.html?id=21185
502 - getscanline() and setscanline() can now read/write palette index
503 based data from/to the image for paletted images, by setting type to
505 http://rt.cpan.org/Ticket/Display.html?id=20338
507 - we no longer hassle you to disable GIF support
508 http://rt.cpan.org/Ticket/Display.html?id=20687
510 - minor documentation fixes
513 Imager 0.53 - 26 Jul 2006
516 This is a bugfix release.
518 Some test code was left in a code path not covered by the test
519 suite. A test was added to cover this code path and the test code was
521 http://rt.cpan.org/Public/Bug/Display.html?id=20705
524 Imager 0.52 - 25 Jul 2006
527 This is primarily a feature release, but contains a fair few bug
530 - ability to read and write MS Windows ICO and CUR files
532 - you can now add file format plugins to support new file formats
534 - add POD coverage tests
536 - setcolors() and addcolors() now accept color names and so on
537 instead of requiring Imager::Color objects.
538 http://rt.cpan.org/Ticket/Display.html?id=20056
540 - flood_fill() can now fill to a specified border color instead of
541 just to the area the same color as the seed.
542 http://rt.cpan.org/Ticket/Display.html?id=19618
547 - bounding_box for the T1 driver wasn't converting UTF8 to ascii when
548 calculating the advance width.
549 http://rt.cpan.org/Public/Bug/Display.html?id=20554
551 - bounding_box for the T1 driver wasn't including leading and
552 trailing spaces in the bounding box as the other drivers did, it also
553 produced strange results for empty strings or strings containing only
556 - when reading CMYK jpeg images they were being transferred to the
557 image object as is, producing a four channel image. It only looked ok
558 due to an old still unfixed Photoshop bug. We now convert from the
559 inverted CMYK that photoshop (and Corel for example) produce into RGB.
560 http://rt.cpan.org/Ticket/Display.html?id=20416
562 - reading a CYMK TIFF would result in a 4 channel image, reading any
563 image with more than 4 channels (eg. RGB with 2 alpha channels) would
565 http://rt.cpan.org/Ticket/Display.html?id=20415
567 - added /usr/local/include to the default include search path, since
568 we were already searching /usr/local/lib for libraries.
570 And various minor fixes and documentation updates.
573 Imager 0.51 - 23 Apr 2006
576 - fix a validation bug when processing JPEG EXIF data that can cause
578 http://rt.cpan.org/Public/Bug/Display.html?id=18496
580 - fix mis-processing of the src_maxx and src_maxy parameters of the
582 http://rt.cpan.org/Public/Bug/Display.html?id=18712
584 - fix a problem in Imager's "smart" handling of the color parameter
586 http://rt.cpan.org/Public/Bug/Display.html?id=18561
589 Imager 0.50 - 29 Mar 2006
592 - CRITICAL: fixes a segmentation fault from attempting to write a 2
593 or 4 channel image to jpeg or a 2 channel image to tga where the
594 output is an in-memeory buffer.
595 http://rt.cpan.org/Public/Bug/Display.html?id=18397
597 - fixes an incorrect pointer parameter in the PNG code
598 http://rt.cpan.org/Public/Bug/Display.html?id=18051
600 - skip Inline::C tests when building in a directory with spaces
601 http://rt.cpan.org/Public/Bug/Display.html?id=18049