added sample: gifscale.pl - scale an animated gif
[imager.git] / Changes
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1Imager release history. Older releases can be found in Changes.old
2
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3Imager 0.61 - unreleased
4===========
5
6 - added samples/gifscale.pl, which adjusts the screen size/position tags
7 when scaling an animated gif
8 http://rt.cpan.org/Ticket/Display.html?id=27591
9
0e622083 10Imager 0.60 - 30 August 2007
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11===========
12
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13 - Finished/rewrote Arnar's old SGI RGB file format support, so Imager
14 now has full SGI RGB image format, including RLE and 16-bit/sample
15 images.
16 https://rt.cpan.org/Ticket/Display.html?id=8666
17
18 - logging functions are now available in the API
19
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20 - applied Gabriel Vasseur's patch
21 added documentation, further tests, and support for greyscale images
22 Obviously problems are my fault :)
23 https://rt.cpan.org/Ticket/Display.html?id=28142
24
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25 - the mask for ICO/CUR images is now applied as an alpha channel to
26 the returned image. For the old behaviour, supply ico_masked => 0
27 to read() or read_multi(). This should be less confusing when
28 using Imager as a general image processor.
29 https://rt.cpan.org/Ticket/Display.html?id=29001
30
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31Bug fixes:
32
33 - in some cases it's possible for giflib/libungif to return color
34 indexes outside the range of colors defined by the image's palette.
35 We now expand the palette to match the indexes used.
36 Thanks to Gabriel Vasseur for reporting this.
37
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38 - fixed various memory leaks that could occur when failing to read png,
39 jpeg, bmp or tga files.
40
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41 - to avoid confusion, channels not present in the image are returned as
42 zero by getscanline(). This has no effect on the C level i_glin()
43 and i_glinf() API functions which continue to not set the unused
44 channels.
45
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46 - the convert() method now returns an image of the same sample size as
47 the source image.
48 https://rt.cpan.org/Ticket/Display.html?id=28492
49
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50 - remove repeated text in Imager::Files
51 http://rt.cpan.org/Ticket/Display.html?id=27589
52
53 - be even more explicit that scale() and friends don't modify the source
54 image, but return a new image.
55 http://rt.cpan.org/Ticket/Display.html?id=28570
56
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57 - improve the error message from errstr() when you try to load a font
58 for which the driver hasn't been built in Imager.
59 http://rt.cpan.org/Ticket/Display.html?id=27571
60
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61 - transparency is now enabled by default when writing GIF images
62 http://rt.cpan.org/Ticket/Display.html?id=27615
63
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64 - Imager would not load on Windows 98
65 http://rt.cpan.org/Ticket/Display.html?id=27653
66
b4996113 67Imager 0.59 - 14 June 2007
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68===========
69
70Bug fixes:
71
72 - fixes a regression introduced by the fixes for RT 11972
73 http://rt.cpan.org/Ticket/Display.html?id=27546
74
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75 - cropping outside the image would return an Imager object with
76 no low-level image object, instead of returning false.
77 Fixed by: Philip Gwyn (Leolo)
78 http://rt.cpan.org/Ticket/Display.html?id=27509
79
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80Imager 0.58 - 16 May 2007
81===========
82
83No significant changes from 0.57_01.
84
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85Imager 0.57_01 - 11 May 2007
86==============
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88 - added to_rgb16 to produce a 16-bit/sample version of an image
89
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90 - improve freetype 1.x text output efficiency
91
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92Bug fixes:
93
94 - search another place for rgb.txt, and check all the places
95 Imager::Color checks when deciding whether to skip testing it
96 http://rt.cpan.org/Ticket/Display.html?id=26064
97
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98 - use a convolution kernel size based on the stddev rather than a
99 fixed size when performing a gaussian blur
100 http://rt.cpan.org/Ticket/Display.html?id=25645
101
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102 - document the difference() method's mindist parameter, and debug it.
103
7e7508dd 104 - put the Imager release number in the Inline::C generated code to
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105 regenerate Inline code when a new release of Imager is installed.
106 http://rt.cpan.org/Ticket/Display.html?id=26278
107
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108 - fix rendering on alpha channel images for the FreeType 1.x driver.
109 http://rt.cpan.org/Ticket/Display.html?id=11972
110
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111 - fix rendering on alpha channel images for the T1lib driver.
112 http://rt.cpan.org/Ticket/Display.html?id=11972
113
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114 - reworked library probing, we can now set more than one probe
115 function for a library. Disabled the default (non-freetype-config)
116 library probe and added an extra probe function that searches for
117 both ft2build.h and whatever it includes, and adds -I as needed.
118 Hopefully this will fix build problems like
119 http://www.nntp.perl.org/group/perl.cpan.testers/2007/05/msg472281.html
120 http://rt.cpan.org/Ticket/Display.html?id=26086
121
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122Imager 0.57 - 30 Apr 2007
123===========
124
125This is a maintenence release fixing a security issue in Imager.
126
127 - CRITICAL: a specially crafted compressed BMP file can cause a buffer
128 overflow in malloced memory. There will be further discussion of
129 this issue in the ticket below.
130 http://rt.cpan.org/Ticket/Display.html?id=26811
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131 CVE-2007-2459 CVE-2007-2413
132 The descriptions at cve.mitre.org varied in quality, please see the
133 ticket at rt.cpan.org for a more accurate description of the issue.
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d034a178 135Imager 0.56 - 1 Apr 2007
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136===========
137
138 - added support for reading 16-bit/sample PGM/PPM images
139
140 - added support for writing 16-bit/sample PGM/PPM images
141
142 - improved performance of reading PBM/PGM/PPM images
143
144 - added support for writing PBM images if the image is paletted and
145 contains only black and white
146
147 - added a new make_colors value - "mono"
148
149 - switched from the svn log Changes to a manual Changes to reduce
150 noise
151
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152 - new sample code - samples/flasher.pl
153
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154Bug fixes:
155
156 - CRITICAL: the "Imager" typemap entry (not used by Imager itself)
157 was returning an image object with an extra reference, this
158 resulted in a memory leak.
159 http://rt.cpan.org/Ticket/Display.html?id=24992
160
161 - fix rendering on alpha channel images for the FreeType 2.x driver
162 http://rt.cpan.org/Ticket/Display.html?id=11972
163
164 - reading bmp files now consitently handles short reads. You can now
165 supply a parameter to treat a short read as successful and set
166 i_incomplete
167 http://rt.cpan.org/Ticket/Display.html?id=8426
168
169 - previously, reading ASCII PBM files required spaces between samples,
170 even though the format doesn't require that
171
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172 - improved documentation of the unsharpmask filter (I hope)
173 http://rt.cpan.org/Ticket/Display.html?id=25531
174
175 - force flushing of the output from i_tt_dump_names() and test output
176 in t/t35ttfont.t to prevent output from being mixed up.
177 https://rt.cpan.org/Ticket/Display.html?id=24859
178
179 - rewrite a conditional expression as an if() to hopefully work around
180 a bug in the pre-4.0 GCC Apple shipped with OS X 10.4.
181 https://rt.cpan.org/Ticket/Display.html?id=25561
182
183 - avoid Data::Dumper in regops.perl to support older releases of perl
184 https://rt.cpan.org/Ticket/Display.html?id=24391
185
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186Imager 0.55 - 16 Dec 2006
187===========
188
189This is primarily a bug fix release.
190
191Note: Test::More is now a pre-requisite for Imager and is no longer bundled.
192
193There is one new feature:
194
195 - the Win32 font driver now supports UTF8 (RT 22166)
196 http://www.cpanforum.com/threads/3276
197 http://rt.cpan.org/Ticket/Display.html?id=22166
198
199Several bugs were fixed:
200
201 - the string() method would not output the string "0"
202 http://rt.cpan.org/Public/Bug/Display.html?id=21770
203
204 - fills.c was failing to compile on Solaris 10 (compiler unknown)
205 http://rt.cpan.org/Public/Bug/Display.html?id=21944
206
207 - the gif_disposal and gif_user_input tags weren't being read from
208 the file correctly
209 http://rt.cpan.org/Public/Bug/Display.html?id=22192
210
211 - gif.c was failing to build under MSVC
212 http://rt.cpan.org/Ticket/Display.html?id=23922
213
214 - in some cases strings passed to the string() method were treated as
215 terminated by NUL (chr 0)
216 http://rt.cpan.org/Public/Bug/Display.html?id=21770
217
218 - on "MSWin32" perl builds we now link to -lzlib instead of -lz since
219 that's the default build name for zlib on Win32.
220 http://rt.cpan.org/Ticket/Display.html?id=23064
221
222 - search $Config{incpath} for headers too, which we should have been
223 doing all along.
224
225Win32 font driver fixes:
226
227 - the global descent value from bounding box was the wrong sign
228 http://www.cpanforum.com/threads/3276
229
230 - if the first or last glyph overflowed the left or right side of the
231 advance width they would be clipped
232
233
234Imager 0.54 - 14 Sep 2006
235===========
236
237This is primarily a feature release:
238
239 - a new qtype value 'mixing' has been added to the scale()
240 method. This is faster than 'normal', slower than 'preview'. This
241 is based on the method used by pnmscale, and seems to produce less
242 blurry results than normal.
243 http://rt.cpan.org/Public/Bug/Display.html?id=20677
244
245 - the rubthrough() method can now render onto images with an alpha
246 channel.
247 http://rt.cpan.org/Ticket/Display.html?id=20678
248
249 - the read_multi() method now falls back to calling doing a single
250 image read via the read() method and write_multi() will now fall
251 back to calling write() if a single image is supplied. This means
252 you can simply call the read_multi() or write_multi() functions
253 without having to check if the type is formatted by that method.
254 http://rt.cpan.org/Ticket/Display.html?id=19457
255 http://rt.cpan.org/Ticket/Display.html?id=19458
256
257 - the GIF loop extension can now be written. If you don't have
258 libungif/giflib 4.1.4 (or some distribution's bugfixed equivalent) you
259 should upgrade.
260 http://rt.cpan.org/Ticket/Display.html?id=21185
261
262 - getscanline() and setscanline() can now read/write palette index
263 based data from/to the image for paletted images, by setting type to
264 'index'.
265 http://rt.cpan.org/Ticket/Display.html?id=20338
266
267 - we no longer hassle you to disable GIF support
268 http://rt.cpan.org/Ticket/Display.html?id=20687
269
270 - minor documentation fixes
271
272
273Imager 0.53 - 26 Jul 2006
274===========
275
276This is a bugfix release.
277
278Some test code was left in a code path not covered by the test
279suite. A test was added to cover this code path and the test code was
280removed.
281http://rt.cpan.org/Public/Bug/Display.html?id=20705
282
283
284Imager 0.52 - 25 Jul 2006
285===========
286
287This is primarily a feature release, but contains a fair few bug
288fixes, new features:
289
290 - ability to read and write MS Windows ICO and CUR files
291
292 - you can now add file format plugins to support new file formats
293
294 - add POD coverage tests
295
296 - setcolors() and addcolors() now accept color names and so on
297 instead of requiring Imager::Color objects.
298 http://rt.cpan.org/Ticket/Display.html?id=20056
299
300 - flood_fill() can now fill to a specified border color instead of
301 just to the area the same color as the seed.
302 http://rt.cpan.org/Ticket/Display.html?id=19618
303
304
305Bug fixes:
306
307 - bounding_box for the T1 driver wasn't converting UTF8 to ascii when
308 calculating the advance width.
309 http://rt.cpan.org/Public/Bug/Display.html?id=20554
310
311 - bounding_box for the T1 driver wasn't including leading and
312 trailing spaces in the bounding box as the other drivers did, it also
313 produced strange results for empty strings or strings containing only
314 spaces
315
316 - when reading CMYK jpeg images they were being transferred to the
317 image object as is, producing a four channel image. It only looked ok
318 due to an old still unfixed Photoshop bug. We now convert from the
319 inverted CMYK that photoshop (and Corel for example) produce into RGB.
320 http://rt.cpan.org/Ticket/Display.html?id=20416
321
322 - reading a CYMK TIFF would result in a 4 channel image, reading any
323 image with more than 4 channels (eg. RGB with 2 alpha channels) would
324 result in an error.
325 http://rt.cpan.org/Ticket/Display.html?id=20415
326
327 - added /usr/local/include to the default include search path, since
328 we were already searching /usr/local/lib for libraries.
329
330And various minor fixes and documentation updates.
331
332
333Imager 0.51 - 23 Apr 2006
334===========
335
336 - fix a validation bug when processing JPEG EXIF data that can cause
337 a crash
338 http://rt.cpan.org/Public/Bug/Display.html?id=18496
339
340 - fix mis-processing of the src_maxx and src_maxy parameters of the
341 paste() method
342 http://rt.cpan.org/Public/Bug/Display.html?id=18712
343
344 - fix a problem in Imager's "smart" handling of the color parameter
345 to various methods.
346 http://rt.cpan.org/Public/Bug/Display.html?id=18561
347
348
349Imager 0.50 - 29 Mar 2006
350===========
351
352 - CRITICAL: fixes a segmentation fault from attempting to write a 2
353 or 4 channel image to jpeg or a 2 channel image to tga where the
354 output is an in-memeory buffer.
355 http://rt.cpan.org/Public/Bug/Display.html?id=18397
356
357 - fixes an incorrect pointer parameter in the PNG code
358 http://rt.cpan.org/Public/Bug/Display.html?id=18051
359
360 - skip Inline::C tests when building in a directory with spaces
361 http://rt.cpan.org/Public/Bug/Display.html?id=18049