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