- added the det() function to the transform2() engine.
[imager.git] / Changes
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1Imager release history. Older releases can be found in Changes.old
2
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3Imager 0.62 - unreleased
4===========
5
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6 - Makefile.PL now expands ~/path supplied to --incpath or --libpath
7 to /path under your home directory.
8 http://rt.cpan.org/Ticket/Display.html?id=29484
9
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10 - the old dynaload code used Mach API functions to load dynamic
11 libraries on Mac OS X. These APIs have been deprecated in OS X
12 10.5 and were causing some build problems.
13 So henceforth Imager uses the dlopen() family of functions, and you
14 will need version 10.3 or later of OS X.
15
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16 - added the det() function to the transform2() engine.
17 added the sample quad_to_square.pl
18 Courtesy Richard Fairhurst.
19 http://rt.cpan.org/Ticket/Display.html?id=31244
20
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21Bug fixes:
22
23 - samples/gifscale.pl sourced the base value for gif_top from
24 gif_left.
25 Thanks to Eleneldil G. Arilou for pointing this out.
26
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27 - t/t82inline.t no longer loads B at runtime, to work around a bug
28 in some 5.005_0[45] installations.
29 http://rt.cpan.org/Ticket/Display.html?id=30508
30
31 - work around Module::Depends::Intrusive bug #21229
32 http://rt.cpan.org/Ticket/Display.html?id=30520
ac8138b0 33
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34 - the hardinvert filter no-longer inverts the alpha channel.
35 http://rt.cpan.org/Ticket/Display.html?id=30002
36
37 - the hardinvert filter now supports large samples
38
b7809486 39Imager 0.61_02 - 28 November 2007
f74e6efc 40==============
874c55db 41
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42 - major TIFF support re-work
43 http://rt.cpan.org/Ticket/Display.html?id=20329
44
45 - added a C level image interface for accessing samples from 1-32
46 bits, exposed this at the perl level in getsamples()
47
48 - the conv filter now works at floating point precision for high bit
49 images
50
51 - added is_bilevel method to test whether an image should be written as
52 a bilevel image if the image format supports it.
53
54 - added -log-stderr as an Imager import list option
55
56 - added some important types to Imager::APIRef
57
58 - added test_image_double() to Imager::Test
59
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60Bug fixes:
61
62 - Imager::Fountain couldn't read GIMP gradient files with 10 or more
63 segments
64
65 - the scale() method with qtype mixing now handles images with an
66 alpha channel correctly.
67
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68 - fixed a broken link from the "animated GIF" entry in the concept index.
69 Thanks to Slaven Rezic.
70 http://rt.cpan.org/Ticket/Display.html?id=30889
71
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72 - on some perl's the infix expression parser test would fail due to
73 actions in the grammar returning false. Made sure all actions return
74 a true value.
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75 Thanks to Richard Fairhurst for spending a lot of time in tracking
76 down this problem.
680c329d 77 http://rt.cpan.org/Public/Bug/Display.html?id=29562
d3bf4eaf 78
d06f6707 79Imager 0.61 - 5 November 2007
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80===========
81
82 - added samples/gifscale.pl, which adjusts the screen size/position tags
83 when scaling an animated gif
84 http://rt.cpan.org/Ticket/Display.html?id=27591
85
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86Bug fixes:
87
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88 - correct handling of sz in matrix_transform() - this should allow
89 perspective type transformations to work now.
90 http://rt.cpan.org/Ticket/Display.html?id=29936
91
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92 - prevent a cast to integer warning on x64 builds in datatypes.c
93 also fixed some other type warnings
94 https://rt.cpan.org/Ticket/Display.html?id=30204
95
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96 - some sub-directory tests depended on files produced by the parent
97 directory tests
98 http://rt.cpan.org/Ticket/Display.html?id=30203
99
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100 - Imager::Font::Wrap doesn't correctly set savepos
101 thanks to Nikita Dedik and Eleneldil G. Arilou for reporting this.
102 http://rt.cpan.org/Ticket/Display.html?id=29771
103
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104 - test 171 in t/t01introvert.t was failing on perls configured to
105 use long double.
106 http://rt.cpan.org/Ticket/Display.html?id=29413
107
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108 - the code for the transform2() uminus operator was missing a break.
109 Added tests for better code coverage of the ops.
110 http://rt.cpan.org/Ticket/Display.html?id=29296
111
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112 - the SGI RLE compression code could overflow its compression buffer
113 http://rt.cpan.org/Ticket/Display.html?id=30334
114
115 - the 32-bit output function used by the SGI code only handled values
116 under 0x10000. This was most noticable when writing large RLE images.
117 http://rt.cpan.org/Ticket/Display.html?id=30335
118
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119 - validate chan_count for chans == NULL for each of the i_gsamp()
120 implementations.
121 http://rt.cpan.org/Ticket/Display.html?id=28985
122
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123 - attempt to work around the test failure at
124 http://www.nntp.perl.org/group/perl.cpan.testers/2007/09/msg650810.html
125 http://rt.cpan.org/Ticket/Display.html?id=29562
126
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127 - improve the error messages produced when attempting to read or write
128 an unknown image file format.
129 http://rt.cpan.org/Ticket/Display.html?id=30103
130
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131 - improve the transform2() documentation
132 http://rt.cpan.org/Ticket/Display.html?id=29267
133
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134 - correctly generate the author key in META.yml
135 http://rt.cpan.org/Ticket/Display.html?id=30377
136
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137 - correctly blend a rotated (or matrix_transformed()) image when
138 performing interpolation in the presence of an alpha channel.
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139 Also corrected the centring of the rotated image on the output
140 image.
13c9a303 141
0e622083 142Imager 0.60 - 30 August 2007
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143===========
144
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145 - Finished/rewrote Arnar's old SGI RGB file format support, so Imager
146 now has full SGI RGB image format, including RLE and 16-bit/sample
147 images.
148 https://rt.cpan.org/Ticket/Display.html?id=8666
149
150 - logging functions are now available in the API
151
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152 - applied Gabriel Vasseur's patch
153 added documentation, further tests, and support for greyscale images
154 Obviously problems are my fault :)
155 https://rt.cpan.org/Ticket/Display.html?id=28142
156
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157 - the mask for ICO/CUR images is now applied as an alpha channel to
158 the returned image. For the old behaviour, supply ico_masked => 0
159 to read() or read_multi(). This should be less confusing when
160 using Imager as a general image processor.
161 https://rt.cpan.org/Ticket/Display.html?id=29001
162
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163Bug fixes:
164
165 - in some cases it's possible for giflib/libungif to return color
166 indexes outside the range of colors defined by the image's palette.
167 We now expand the palette to match the indexes used.
168 Thanks to Gabriel Vasseur for reporting this.
169
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170 - fixed various memory leaks that could occur when failing to read png,
171 jpeg, bmp or tga files.
172
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173 - to avoid confusion, channels not present in the image are returned as
174 zero by getscanline(). This has no effect on the C level i_glin()
175 and i_glinf() API functions which continue to not set the unused
176 channels.
177
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178 - the convert() method now returns an image of the same sample size as
179 the source image.
180 https://rt.cpan.org/Ticket/Display.html?id=28492
181
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182 - remove repeated text in Imager::Files
183 http://rt.cpan.org/Ticket/Display.html?id=27589
184
185 - be even more explicit that scale() and friends don't modify the source
186 image, but return a new image.
187 http://rt.cpan.org/Ticket/Display.html?id=28570
188
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189 - improve the error message from errstr() when you try to load a font
190 for which the driver hasn't been built in Imager.
191 http://rt.cpan.org/Ticket/Display.html?id=27571
192
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193 - transparency is now enabled by default when writing GIF images
194 http://rt.cpan.org/Ticket/Display.html?id=27615
195
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196 - Imager would not load on Windows 98
197 http://rt.cpan.org/Ticket/Display.html?id=27653
198
b4996113 199Imager 0.59 - 14 June 2007
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200===========
201
202Bug fixes:
203
204 - fixes a regression introduced by the fixes for RT 11972
205 http://rt.cpan.org/Ticket/Display.html?id=27546
206
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207 - cropping outside the image would return an Imager object with
208 no low-level image object, instead of returning false.
209 Fixed by: Philip Gwyn (Leolo)
210 http://rt.cpan.org/Ticket/Display.html?id=27509
211
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212Imager 0.58 - 16 May 2007
213===========
214
215No significant changes from 0.57_01.
216
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217Imager 0.57_01 - 11 May 2007
218==============
d034a178 219
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220 - added to_rgb16 to produce a 16-bit/sample version of an image
221
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222 - improve freetype 1.x text output efficiency
223
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224Bug fixes:
225
226 - search another place for rgb.txt, and check all the places
227 Imager::Color checks when deciding whether to skip testing it
228 http://rt.cpan.org/Ticket/Display.html?id=26064
229
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230 - use a convolution kernel size based on the stddev rather than a
231 fixed size when performing a gaussian blur
232 http://rt.cpan.org/Ticket/Display.html?id=25645
233
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234 - document the difference() method's mindist parameter, and debug it.
235
7e7508dd 236 - put the Imager release number in the Inline::C generated code to
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237 regenerate Inline code when a new release of Imager is installed.
238 http://rt.cpan.org/Ticket/Display.html?id=26278
239
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240 - fix rendering on alpha channel images for the FreeType 1.x driver.
241 http://rt.cpan.org/Ticket/Display.html?id=11972
242
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243 - fix rendering on alpha channel images for the T1lib driver.
244 http://rt.cpan.org/Ticket/Display.html?id=11972
245
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246 - reworked library probing, we can now set more than one probe
247 function for a library. Disabled the default (non-freetype-config)
248 library probe and added an extra probe function that searches for
249 both ft2build.h and whatever it includes, and adds -I as needed.
250 Hopefully this will fix build problems like
251 http://www.nntp.perl.org/group/perl.cpan.testers/2007/05/msg472281.html
252 http://rt.cpan.org/Ticket/Display.html?id=26086
253
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254Imager 0.57 - 30 Apr 2007
255===========
256
257This is a maintenence release fixing a security issue in Imager.
258
259 - CRITICAL: a specially crafted compressed BMP file can cause a buffer
260 overflow in malloced memory. There will be further discussion of
261 this issue in the ticket below.
262 http://rt.cpan.org/Ticket/Display.html?id=26811
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263 CVE-2007-2459 CVE-2007-2413
264 The descriptions at cve.mitre.org varied in quality, please see the
265 ticket at rt.cpan.org for a more accurate description of the issue.
bb5712de 266
d034a178 267Imager 0.56 - 1 Apr 2007
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268===========
269
270 - added support for reading 16-bit/sample PGM/PPM images
271
272 - added support for writing 16-bit/sample PGM/PPM images
273
274 - improved performance of reading PBM/PGM/PPM images
275
276 - added support for writing PBM images if the image is paletted and
277 contains only black and white
278
279 - added a new make_colors value - "mono"
280
281 - switched from the svn log Changes to a manual Changes to reduce
282 noise
283
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284 - new sample code - samples/flasher.pl
285
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286Bug fixes:
287
288 - CRITICAL: the "Imager" typemap entry (not used by Imager itself)
289 was returning an image object with an extra reference, this
290 resulted in a memory leak.
291 http://rt.cpan.org/Ticket/Display.html?id=24992
292
293 - fix rendering on alpha channel images for the FreeType 2.x driver
294 http://rt.cpan.org/Ticket/Display.html?id=11972
295
296 - reading bmp files now consitently handles short reads. You can now
297 supply a parameter to treat a short read as successful and set
298 i_incomplete
299 http://rt.cpan.org/Ticket/Display.html?id=8426
300
301 - previously, reading ASCII PBM files required spaces between samples,
302 even though the format doesn't require that
303
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304 - improved documentation of the unsharpmask filter (I hope)
305 http://rt.cpan.org/Ticket/Display.html?id=25531
306
307 - force flushing of the output from i_tt_dump_names() and test output
308 in t/t35ttfont.t to prevent output from being mixed up.
309 https://rt.cpan.org/Ticket/Display.html?id=24859
310
311 - rewrite a conditional expression as an if() to hopefully work around
312 a bug in the pre-4.0 GCC Apple shipped with OS X 10.4.
313 https://rt.cpan.org/Ticket/Display.html?id=25561
314
315 - avoid Data::Dumper in regops.perl to support older releases of perl
316 https://rt.cpan.org/Ticket/Display.html?id=24391
317
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318Imager 0.55 - 16 Dec 2006
319===========
320
321This is primarily a bug fix release.
322
323Note: Test::More is now a pre-requisite for Imager and is no longer bundled.
324
325There is one new feature:
326
327 - the Win32 font driver now supports UTF8 (RT 22166)
328 http://www.cpanforum.com/threads/3276
329 http://rt.cpan.org/Ticket/Display.html?id=22166
330
331Several bugs were fixed:
332
333 - the string() method would not output the string "0"
334 http://rt.cpan.org/Public/Bug/Display.html?id=21770
335
336 - fills.c was failing to compile on Solaris 10 (compiler unknown)
337 http://rt.cpan.org/Public/Bug/Display.html?id=21944
338
339 - the gif_disposal and gif_user_input tags weren't being read from
340 the file correctly
341 http://rt.cpan.org/Public/Bug/Display.html?id=22192
342
343 - gif.c was failing to build under MSVC
344 http://rt.cpan.org/Ticket/Display.html?id=23922
345
346 - in some cases strings passed to the string() method were treated as
347 terminated by NUL (chr 0)
348 http://rt.cpan.org/Public/Bug/Display.html?id=21770
349
350 - on "MSWin32" perl builds we now link to -lzlib instead of -lz since
351 that's the default build name for zlib on Win32.
352 http://rt.cpan.org/Ticket/Display.html?id=23064
353
354 - search $Config{incpath} for headers too, which we should have been
355 doing all along.
356
357Win32 font driver fixes:
358
359 - the global descent value from bounding box was the wrong sign
360 http://www.cpanforum.com/threads/3276
361
362 - if the first or last glyph overflowed the left or right side of the
363 advance width they would be clipped
364
365
366Imager 0.54 - 14 Sep 2006
367===========
368
369This is primarily a feature release:
370
371 - a new qtype value 'mixing' has been added to the scale()
372 method. This is faster than 'normal', slower than 'preview'. This
373 is based on the method used by pnmscale, and seems to produce less
374 blurry results than normal.
375 http://rt.cpan.org/Public/Bug/Display.html?id=20677
376
377 - the rubthrough() method can now render onto images with an alpha
378 channel.
379 http://rt.cpan.org/Ticket/Display.html?id=20678
380
381 - the read_multi() method now falls back to calling doing a single
382 image read via the read() method and write_multi() will now fall
383 back to calling write() if a single image is supplied. This means
384 you can simply call the read_multi() or write_multi() functions
385 without having to check if the type is formatted by that method.
386 http://rt.cpan.org/Ticket/Display.html?id=19457
387 http://rt.cpan.org/Ticket/Display.html?id=19458
388
389 - the GIF loop extension can now be written. If you don't have
390 libungif/giflib 4.1.4 (or some distribution's bugfixed equivalent) you
391 should upgrade.
392 http://rt.cpan.org/Ticket/Display.html?id=21185
393
394 - getscanline() and setscanline() can now read/write palette index
395 based data from/to the image for paletted images, by setting type to
396 'index'.
397 http://rt.cpan.org/Ticket/Display.html?id=20338
398
399 - we no longer hassle you to disable GIF support
400 http://rt.cpan.org/Ticket/Display.html?id=20687
401
402 - minor documentation fixes
403
404
405Imager 0.53 - 26 Jul 2006
406===========
407
408This is a bugfix release.
409
410Some test code was left in a code path not covered by the test
411suite. A test was added to cover this code path and the test code was
412removed.
413http://rt.cpan.org/Public/Bug/Display.html?id=20705
414
415
416Imager 0.52 - 25 Jul 2006
417===========
418
419This is primarily a feature release, but contains a fair few bug
420fixes, new features:
421
422 - ability to read and write MS Windows ICO and CUR files
423
424 - you can now add file format plugins to support new file formats
425
426 - add POD coverage tests
427
428 - setcolors() and addcolors() now accept color names and so on
429 instead of requiring Imager::Color objects.
430 http://rt.cpan.org/Ticket/Display.html?id=20056
431
432 - flood_fill() can now fill to a specified border color instead of
433 just to the area the same color as the seed.
434 http://rt.cpan.org/Ticket/Display.html?id=19618
435
436
437Bug fixes:
438
439 - bounding_box for the T1 driver wasn't converting UTF8 to ascii when
440 calculating the advance width.
441 http://rt.cpan.org/Public/Bug/Display.html?id=20554
442
443 - bounding_box for the T1 driver wasn't including leading and
444 trailing spaces in the bounding box as the other drivers did, it also
445 produced strange results for empty strings or strings containing only
446 spaces
447
448 - when reading CMYK jpeg images they were being transferred to the
449 image object as is, producing a four channel image. It only looked ok
450 due to an old still unfixed Photoshop bug. We now convert from the
451 inverted CMYK that photoshop (and Corel for example) produce into RGB.
452 http://rt.cpan.org/Ticket/Display.html?id=20416
453
454 - reading a CYMK TIFF would result in a 4 channel image, reading any
455 image with more than 4 channels (eg. RGB with 2 alpha channels) would
456 result in an error.
457 http://rt.cpan.org/Ticket/Display.html?id=20415
458
459 - added /usr/local/include to the default include search path, since
460 we were already searching /usr/local/lib for libraries.
461
462And various minor fixes and documentation updates.
463
464
465Imager 0.51 - 23 Apr 2006
466===========
467
468 - fix a validation bug when processing JPEG EXIF data that can cause
469 a crash
470 http://rt.cpan.org/Public/Bug/Display.html?id=18496
471
472 - fix mis-processing of the src_maxx and src_maxy parameters of the
473 paste() method
474 http://rt.cpan.org/Public/Bug/Display.html?id=18712
475
476 - fix a problem in Imager's "smart" handling of the color parameter
477 to various methods.
478 http://rt.cpan.org/Public/Bug/Display.html?id=18561
479
480
481Imager 0.50 - 29 Mar 2006
482===========
483
484 - CRITICAL: fixes a segmentation fault from attempting to write a 2
485 or 4 channel image to jpeg or a 2 channel image to tga where the
486 output is an in-memeory buffer.
487 http://rt.cpan.org/Public/Bug/Display.html?id=18397
488
489 - fixes an incorrect pointer parameter in the PNG code
490 http://rt.cpan.org/Public/Bug/Display.html?id=18051
491
492 - skip Inline::C tests when building in a directory with spaces
493 http://rt.cpan.org/Public/Bug/Display.html?id=18049