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 Imager 0.63 - 7 April 2008
24 This release primarily contains changes to improve ease of use -
25 rather than you having to convert images to the appropriate number of
26 channels, Imager handles it internally. How to handle drawing colors
27 and the default combine mode is a thornier problem left for some other
30 - the font libraries are now only initialized when needed.
31 http://rt.cpan.org/Ticket/Display.html?id=28825
33 - moved the imtoc.perl code into Imager::Preprocess
35 - paste() and rubthrough() now adapt the source image data to the
36 destination, so you can now safely paste/rubthrough from greyscale
37 images to color images or back, or from alpha channel images to
38 noalpha channels or back.
39 https://rt.cpan.org/Ticket/Display.html?id=30908
41 - rubthrough() now falls back to pasting when the source doesn't have
42 an alpha channel. This effectively treats the source as having a
43 max alpha channel, the right thing to do.
44 http://rt.cpan.org/Ticket/Display.html?id=29944
46 - re-worked most of the area filling code to use a common set of
47 functions when filling.
48 Corrected normal combine mode.
49 Rewrote most of the combine modes to match the way the SVG draft
50 defines them with respect to a translucent source and destination.
51 Added tests for translucent source and destination.
52 Added tests to check 8-bit/sample and double/sample combines work
54 https://rt.cpan.org/Ticket/Display.html?id=29879
56 - writing a 2 or 4 channel image to a JPEG file will now write that
57 image as if composited against a background, black by default,
58 overridable with the i_background tag/parameter.
59 https://rt.cpan.org/Ticket/Display.html?id=29876
61 - writing a 2 or 4 channel image to a PGM/PPM file will now write
62 that image as if composited against a background, black by default,
63 overridable with the i_background tag/parameter.
64 http://rt.cpan.org/Ticket/Display.html?id=30074
66 - writing a 2 or 4 channel image to a BMP 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 http://rt.cpan.org/Ticket/Display.html?id=30075
73 - Imager::Matrix2d->translate() now only requires one of the x or y
75 http://rt.cpan.org/Ticket/Display.html?id=29937
77 - mixing qtype scaling now sets all channels of a pixel to zero if
78 the pixel has zero coverage (zero alpha). This should produce more
79 compressible output files.
80 http://rt.cpan.org/Ticket/Display.html?id=32324
82 - removed the pointless #! line from lib/Imager/Font/Wrap.pm
84 https://bugzilla.redhat.com/show_bug.cgi?id=166254
85 I'm not changing the #! lines of the sample code, since it's sample
86 code, not intended for installation.
87 http://rt.cpan.org/Ticket/Display.html?id=33408
89 - some TGA images weren't being detected correctly as TGA images
90 https://rt.cpan.org/Ticket/Display.html?id=32925
92 - handling of the left-over bit for 16-bit/pixel TGA images has been
93 changed to match the behaviour of the GIMP. Previously the bit
94 being set was treated as an opaque pixel, but one user reported a
95 problem with loading such an image. I haven't been able to find any
96 tools beyond the GIMP that handle alpha-channel 16-bit TGAs, so
97 I'll match it's behaviour. See issue 114913 in the GIMP's
99 http://rt.cpan.org/Ticket/Display.html?id=32926
101 Imager 0.62 - 10 December 2007
104 - Makefile.PL now expands ~/path supplied to --incpath or --libpath
105 to /path under your home directory.
106 http://rt.cpan.org/Ticket/Display.html?id=29484
108 - the old dynaload code used Mach API functions to load dynamic
109 libraries on Mac OS X. These APIs have been deprecated in OS X
110 10.5 and were causing some build problems.
111 So henceforth Imager uses the dlopen() family of functions, and you
112 will need version 10.3 or later of OS X.
114 - added the det() function to the transform2() engine.
115 added the sample quad_to_square.pl
116 Courtesy Richard Fairhurst.
117 http://rt.cpan.org/Ticket/Display.html?id=31244
121 - samples/gifscale.pl sourced the base value for gif_top from
123 Thanks to Eleneldil G. Arilou for pointing this out.
125 - t/t82inline.t no longer loads B at runtime, to work around a bug
126 in some 5.005_0[45] installations.
127 http://rt.cpan.org/Ticket/Display.html?id=30508
129 - work around Module::Depends::Intrusive bug #21229
130 http://rt.cpan.org/Ticket/Display.html?id=30520
132 - the hardinvert filter no-longer inverts the alpha channel.
133 http://rt.cpan.org/Ticket/Display.html?id=30002
135 - the hardinvert filter now supports large samples
137 Imager 0.61_02 - 28 November 2007
140 - major TIFF support re-work
141 http://rt.cpan.org/Ticket/Display.html?id=20329
143 - added a C level image interface for accessing samples from 1-32
144 bits, exposed this at the perl level in getsamples()
146 - the conv filter now works at floating point precision for high bit
149 - added is_bilevel method to test whether an image should be written as
150 a bilevel image if the image format supports it.
152 - added -log-stderr as an Imager import list option
154 - added some important types to Imager::APIRef
156 - added test_image_double() to Imager::Test
160 - Imager::Fountain couldn't read GIMP gradient files with 10 or more
163 - the scale() method with qtype mixing now handles images with an
164 alpha channel correctly.
166 - fixed a broken link from the "animated GIF" entry in the concept index.
167 Thanks to Slaven Rezic.
168 http://rt.cpan.org/Ticket/Display.html?id=30889
170 - on some perl's the infix expression parser test would fail due to
171 actions in the grammar returning false. Made sure all actions return
173 Thanks to Richard Fairhurst for spending a lot of time in tracking
175 http://rt.cpan.org/Public/Bug/Display.html?id=29562
177 Imager 0.61 - 5 November 2007
180 - added samples/gifscale.pl, which adjusts the screen size/position tags
181 when scaling an animated gif
182 http://rt.cpan.org/Ticket/Display.html?id=27591
186 - correct handling of sz in matrix_transform() - this should allow
187 perspective type transformations to work now.
188 http://rt.cpan.org/Ticket/Display.html?id=29936
190 - prevent a cast to integer warning on x64 builds in datatypes.c
191 also fixed some other type warnings
192 https://rt.cpan.org/Ticket/Display.html?id=30204
194 - some sub-directory tests depended on files produced by the parent
196 http://rt.cpan.org/Ticket/Display.html?id=30203
198 - Imager::Font::Wrap doesn't correctly set savepos
199 thanks to Nikita Dedik and Eleneldil G. Arilou for reporting this.
200 http://rt.cpan.org/Ticket/Display.html?id=29771
202 - test 171 in t/t01introvert.t was failing on perls configured to
204 http://rt.cpan.org/Ticket/Display.html?id=29413
206 - the code for the transform2() uminus operator was missing a break.
207 Added tests for better code coverage of the ops.
208 http://rt.cpan.org/Ticket/Display.html?id=29296
210 - the SGI RLE compression code could overflow its compression buffer
211 http://rt.cpan.org/Ticket/Display.html?id=30334
213 - the 32-bit output function used by the SGI code only handled values
214 under 0x10000. This was most noticable when writing large RLE images.
215 http://rt.cpan.org/Ticket/Display.html?id=30335
217 - validate chan_count for chans == NULL for each of the i_gsamp()
219 http://rt.cpan.org/Ticket/Display.html?id=28985
221 - attempt to work around the test failure at
222 http://www.nntp.perl.org/group/perl.cpan.testers/2007/09/msg650810.html
223 http://rt.cpan.org/Ticket/Display.html?id=29562
225 - improve the error messages produced when attempting to read or write
226 an unknown image file format.
227 http://rt.cpan.org/Ticket/Display.html?id=30103
229 - improve the transform2() documentation
230 http://rt.cpan.org/Ticket/Display.html?id=29267
232 - correctly generate the author key in META.yml
233 http://rt.cpan.org/Ticket/Display.html?id=30377
235 - correctly blend a rotated (or matrix_transformed()) image when
236 performing interpolation in the presence of an alpha channel.
237 Also corrected the centring of the rotated image on the output
240 Imager 0.60 - 30 August 2007
243 - Finished/rewrote Arnar's old SGI RGB file format support, so Imager
244 now has full SGI RGB image format, including RLE and 16-bit/sample
246 https://rt.cpan.org/Ticket/Display.html?id=8666
248 - logging functions are now available in the API
250 - applied Gabriel Vasseur's patch
251 added documentation, further tests, and support for greyscale images
252 Obviously problems are my fault :)
253 https://rt.cpan.org/Ticket/Display.html?id=28142
255 - the mask for ICO/CUR images is now applied as an alpha channel to
256 the returned image. For the old behaviour, supply ico_masked => 0
257 to read() or read_multi(). This should be less confusing when
258 using Imager as a general image processor.
259 https://rt.cpan.org/Ticket/Display.html?id=29001
263 - in some cases it's possible for giflib/libungif to return color
264 indexes outside the range of colors defined by the image's palette.
265 We now expand the palette to match the indexes used.
266 Thanks to Gabriel Vasseur for reporting this.
268 - fixed various memory leaks that could occur when failing to read png,
269 jpeg, bmp or tga files.
271 - to avoid confusion, channels not present in the image are returned as
272 zero by getscanline(). This has no effect on the C level i_glin()
273 and i_glinf() API functions which continue to not set the unused
276 - the convert() method now returns an image of the same sample size as
278 https://rt.cpan.org/Ticket/Display.html?id=28492
280 - remove repeated text in Imager::Files
281 http://rt.cpan.org/Ticket/Display.html?id=27589
283 - be even more explicit that scale() and friends don't modify the source
284 image, but return a new image.
285 http://rt.cpan.org/Ticket/Display.html?id=28570
287 - improve the error message from errstr() when you try to load a font
288 for which the driver hasn't been built in Imager.
289 http://rt.cpan.org/Ticket/Display.html?id=27571
291 - transparency is now enabled by default when writing GIF images
292 http://rt.cpan.org/Ticket/Display.html?id=27615
294 - Imager would not load on Windows 98
295 http://rt.cpan.org/Ticket/Display.html?id=27653
297 Imager 0.59 - 14 June 2007
302 - fixes a regression introduced by the fixes for RT 11972
303 http://rt.cpan.org/Ticket/Display.html?id=27546
305 - cropping outside the image would return an Imager object with
306 no low-level image object, instead of returning false.
307 Fixed by: Philip Gwyn (Leolo)
308 http://rt.cpan.org/Ticket/Display.html?id=27509
310 Imager 0.58 - 16 May 2007
313 No significant changes from 0.57_01.
315 Imager 0.57_01 - 11 May 2007
318 - added to_rgb16 to produce a 16-bit/sample version of an image
320 - improve freetype 1.x text output efficiency
324 - search another place for rgb.txt, and check all the places
325 Imager::Color checks when deciding whether to skip testing it
326 http://rt.cpan.org/Ticket/Display.html?id=26064
328 - use a convolution kernel size based on the stddev rather than a
329 fixed size when performing a gaussian blur
330 http://rt.cpan.org/Ticket/Display.html?id=25645
332 - document the difference() method's mindist parameter, and debug it.
334 - put the Imager release number in the Inline::C generated code to
335 regenerate Inline code when a new release of Imager is installed.
336 http://rt.cpan.org/Ticket/Display.html?id=26278
338 - fix rendering on alpha channel images for the FreeType 1.x driver.
339 http://rt.cpan.org/Ticket/Display.html?id=11972
341 - fix rendering on alpha channel images for the T1lib driver.
342 http://rt.cpan.org/Ticket/Display.html?id=11972
344 - reworked library probing, we can now set more than one probe
345 function for a library. Disabled the default (non-freetype-config)
346 library probe and added an extra probe function that searches for
347 both ft2build.h and whatever it includes, and adds -I as needed.
348 Hopefully this will fix build problems like
349 http://www.nntp.perl.org/group/perl.cpan.testers/2007/05/msg472281.html
350 http://rt.cpan.org/Ticket/Display.html?id=26086
352 Imager 0.57 - 30 Apr 2007
355 This is a maintenence release fixing a security issue in Imager.
357 - CRITICAL: a specially crafted compressed BMP file can cause a buffer
358 overflow in malloced memory. There will be further discussion of
359 this issue in the ticket below.
360 http://rt.cpan.org/Ticket/Display.html?id=26811
361 CVE-2007-2459 CVE-2007-2413
362 The descriptions at cve.mitre.org varied in quality, please see the
363 ticket at rt.cpan.org for a more accurate description of the issue.
365 Imager 0.56 - 1 Apr 2007
368 - added support for reading 16-bit/sample PGM/PPM images
370 - added support for writing 16-bit/sample PGM/PPM images
372 - improved performance of reading PBM/PGM/PPM images
374 - added support for writing PBM images if the image is paletted and
375 contains only black and white
377 - added a new make_colors value - "mono"
379 - switched from the svn log Changes to a manual Changes to reduce
382 - new sample code - samples/flasher.pl
386 - CRITICAL: the "Imager" typemap entry (not used by Imager itself)
387 was returning an image object with an extra reference, this
388 resulted in a memory leak.
389 http://rt.cpan.org/Ticket/Display.html?id=24992
391 - fix rendering on alpha channel images for the FreeType 2.x driver
392 http://rt.cpan.org/Ticket/Display.html?id=11972
394 - reading bmp files now consitently handles short reads. You can now
395 supply a parameter to treat a short read as successful and set
397 http://rt.cpan.org/Ticket/Display.html?id=8426
399 - previously, reading ASCII PBM files required spaces between samples,
400 even though the format doesn't require that
402 - improved documentation of the unsharpmask filter (I hope)
403 http://rt.cpan.org/Ticket/Display.html?id=25531
405 - force flushing of the output from i_tt_dump_names() and test output
406 in t/t35ttfont.t to prevent output from being mixed up.
407 https://rt.cpan.org/Ticket/Display.html?id=24859
409 - rewrite a conditional expression as an if() to hopefully work around
410 a bug in the pre-4.0 GCC Apple shipped with OS X 10.4.
411 https://rt.cpan.org/Ticket/Display.html?id=25561
413 - avoid Data::Dumper in regops.perl to support older releases of perl
414 https://rt.cpan.org/Ticket/Display.html?id=24391
416 Imager 0.55 - 16 Dec 2006
419 This is primarily a bug fix release.
421 Note: Test::More is now a pre-requisite for Imager and is no longer bundled.
423 There is one new feature:
425 - the Win32 font driver now supports UTF8 (RT 22166)
426 http://www.cpanforum.com/threads/3276
427 http://rt.cpan.org/Ticket/Display.html?id=22166
429 Several bugs were fixed:
431 - the string() method would not output the string "0"
432 http://rt.cpan.org/Public/Bug/Display.html?id=21770
434 - fills.c was failing to compile on Solaris 10 (compiler unknown)
435 http://rt.cpan.org/Public/Bug/Display.html?id=21944
437 - the gif_disposal and gif_user_input tags weren't being read from
439 http://rt.cpan.org/Public/Bug/Display.html?id=22192
441 - gif.c was failing to build under MSVC
442 http://rt.cpan.org/Ticket/Display.html?id=23922
444 - in some cases strings passed to the string() method were treated as
445 terminated by NUL (chr 0)
446 http://rt.cpan.org/Public/Bug/Display.html?id=21770
448 - on "MSWin32" perl builds we now link to -lzlib instead of -lz since
449 that's the default build name for zlib on Win32.
450 http://rt.cpan.org/Ticket/Display.html?id=23064
452 - search $Config{incpath} for headers too, which we should have been
455 Win32 font driver fixes:
457 - the global descent value from bounding box was the wrong sign
458 http://www.cpanforum.com/threads/3276
460 - if the first or last glyph overflowed the left or right side of the
461 advance width they would be clipped
464 Imager 0.54 - 14 Sep 2006
467 This is primarily a feature release:
469 - a new qtype value 'mixing' has been added to the scale()
470 method. This is faster than 'normal', slower than 'preview'. This
471 is based on the method used by pnmscale, and seems to produce less
472 blurry results than normal.
473 http://rt.cpan.org/Public/Bug/Display.html?id=20677
475 - the rubthrough() method can now render onto images with an alpha
477 http://rt.cpan.org/Ticket/Display.html?id=20678
479 - the read_multi() method now falls back to calling doing a single
480 image read via the read() method and write_multi() will now fall
481 back to calling write() if a single image is supplied. This means
482 you can simply call the read_multi() or write_multi() functions
483 without having to check if the type is formatted by that method.
484 http://rt.cpan.org/Ticket/Display.html?id=19457
485 http://rt.cpan.org/Ticket/Display.html?id=19458
487 - the GIF loop extension can now be written. If you don't have
488 libungif/giflib 4.1.4 (or some distribution's bugfixed equivalent) you
490 http://rt.cpan.org/Ticket/Display.html?id=21185
492 - getscanline() and setscanline() can now read/write palette index
493 based data from/to the image for paletted images, by setting type to
495 http://rt.cpan.org/Ticket/Display.html?id=20338
497 - we no longer hassle you to disable GIF support
498 http://rt.cpan.org/Ticket/Display.html?id=20687
500 - minor documentation fixes
503 Imager 0.53 - 26 Jul 2006
506 This is a bugfix release.
508 Some test code was left in a code path not covered by the test
509 suite. A test was added to cover this code path and the test code was
511 http://rt.cpan.org/Public/Bug/Display.html?id=20705
514 Imager 0.52 - 25 Jul 2006
517 This is primarily a feature release, but contains a fair few bug
520 - ability to read and write MS Windows ICO and CUR files
522 - you can now add file format plugins to support new file formats
524 - add POD coverage tests
526 - setcolors() and addcolors() now accept color names and so on
527 instead of requiring Imager::Color objects.
528 http://rt.cpan.org/Ticket/Display.html?id=20056
530 - flood_fill() can now fill to a specified border color instead of
531 just to the area the same color as the seed.
532 http://rt.cpan.org/Ticket/Display.html?id=19618
537 - bounding_box for the T1 driver wasn't converting UTF8 to ascii when
538 calculating the advance width.
539 http://rt.cpan.org/Public/Bug/Display.html?id=20554
541 - bounding_box for the T1 driver wasn't including leading and
542 trailing spaces in the bounding box as the other drivers did, it also
543 produced strange results for empty strings or strings containing only
546 - when reading CMYK jpeg images they were being transferred to the
547 image object as is, producing a four channel image. It only looked ok
548 due to an old still unfixed Photoshop bug. We now convert from the
549 inverted CMYK that photoshop (and Corel for example) produce into RGB.
550 http://rt.cpan.org/Ticket/Display.html?id=20416
552 - reading a CYMK TIFF would result in a 4 channel image, reading any
553 image with more than 4 channels (eg. RGB with 2 alpha channels) would
555 http://rt.cpan.org/Ticket/Display.html?id=20415
557 - added /usr/local/include to the default include search path, since
558 we were already searching /usr/local/lib for libraries.
560 And various minor fixes and documentation updates.
563 Imager 0.51 - 23 Apr 2006
566 - fix a validation bug when processing JPEG EXIF data that can cause
568 http://rt.cpan.org/Public/Bug/Display.html?id=18496
570 - fix mis-processing of the src_maxx and src_maxy parameters of the
572 http://rt.cpan.org/Public/Bug/Display.html?id=18712
574 - fix a problem in Imager's "smart" handling of the color parameter
576 http://rt.cpan.org/Public/Bug/Display.html?id=18561
579 Imager 0.50 - 29 Mar 2006
582 - CRITICAL: fixes a segmentation fault from attempting to write a 2
583 or 4 channel image to jpeg or a 2 channel image to tga where the
584 output is an in-memeory buffer.
585 http://rt.cpan.org/Public/Bug/Display.html?id=18397
587 - fixes an incorrect pointer parameter in the PNG code
588 http://rt.cpan.org/Public/Bug/Display.html?id=18051
590 - skip Inline::C tests when building in a directory with spaces
591 http://rt.cpan.org/Public/Bug/Display.html?id=18049