[RT #68508] do error diffusion on gray scale if the supplied palette is all gray
[imager.git] / Changes
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1Imager release history. Older releases can be found in Changes.old
2
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3Imager 0.84
4===========
5
6 - Imager no longer inherits from Exporter (unless you're running an
7 old, old perl.
8
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9Bug fixes:
10
11 - re-work, document and test Imager's logging facility.
12 https://rt.cpan.org/Ticket/Display.html?id=65227
13
4989229f
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14 - fix META.yml testing and the generated META.yml
15 https://rt.cpan.org/Ticket/Display.html?id=65235
16
3bcba6df
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17 - test and add error reporting to to_*() family methods
18
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19 - add to_rgb_double() method.
20 https://rt.cpan.org/Ticket/Display.html?id=65101
21
e1a42e19
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22 - Imager no longer exports anything by default
23 https://rt.cpan.org/Ticket/Display.html?id=65228
24
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25 - convert colors to grayscale if the supplied (or generated) palette
26 contains only grays when performing error diffusion color
27 translation.
28 https://rt.cpan.org/Ticket/Display.html?id=68508
29
101861e2 30Imager 0.83 - 21 May 2011
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31===========
32
33Bug fixes:
34
35 - diag() the error message on failure for some TIFF tests that are
36 failing on a Solaris smoker.
37 http://www.cpantesters.org/cpan/report/6396db1e-8090-11e0-9682-112b785ebe45
38
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39Imager 0.82_01 - 17 May 2011
40==============
41
42Dev release, in case the compose tests are too sensitive.
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43
44Bug fixes:
45
46 - Imager::Font::T1 incorrectly checked for absolute filename under
47 Win32. Thanks to kmx for the report and fix.
48 https://rt.cpan.org/Ticket/Display.html?id=67963
49
618a3282
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50 - compose() with the target, source or mask position off the top or
51 left of the target image didn't clip the source image correctly.
52 https://rt.cpan.org/Ticket/Display.html?id=67220
53
54 - compose() now returns a useful error message on a non-positive
55 opacity.
56
57 - compose.im now at 100% test coverage. (As opposed to, umm, much,
58 much less.)
59
c1d16c8f 60Imager 0.82 - 14 Mar 2011
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61===========
62
63Bug fixes:
64
65 - eliminate calls to i_has_format() from the test suite, since it's
66 no longer a useful way to check for file format support. Eliminate
67 i_has_format() from the functions exposed via XS.
68 https://rt.cpan.org/Ticket/Display.html?id=65863
69
7540f84a
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70 - eliminate calls to note(), which isn't in the (very old) version of
71 Test::More we have as a pre-requisite. note() is modern enough
72 that I don't feel a need to require a Test::More upgrade for it.
73 https://rt.cpan.org/Ticket/Display.html?id=65864
74
81984f30
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75 - skip the threads tests on Test::More 2.00_*
76 https://rt.cpan.org/Ticket/Display.html?id=65812
77
57fc3f48
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78 - add an (unshipped) test to check Imager's internal POD links
79 https://rt.cpan.org/Ticket/Display.html?id=65749
80
d97c8dbd
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81 - improve the library detection summary
82 https://rt.cpan.org/Ticket/Display.html?id=9675
83
c901f27d
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84 - increase the version of Imager::Font::Type1 so that upgrades don't
85 downgrade the version in this file.
86 https://rt.cpan.org/Ticket/Display.html?id=66250
87
88 - if we see an -rpath (or -R) option in $Config{lddlflags} supply
89 that option for the directories that would normally go in
90 LD_RUN_PATH. Typically an explicit -rpath overrides LD_RUN_PATH.
91 https://rt.cpan.org/Ticket/Display.html?id=65955
92
533bab3e 93Imager 0.81 - 14 Feb 2011
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94===========
95
96 - added coverage tests for masked images (maskimg.c @100% test coverage)
97
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98 - add hsv() method to Imager::Color
99 Thanks to Leolo (Philip Gwyn)
100 https://rt.cpan.org/Ticket/Display.html?id=65385
101
1f289f50
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102 - split libt1 Type 1 font support into a sub-module
103 https://rt.cpan.org/Ticket/Display.html?id=49616 (partial)
104
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105 - add a preload() class method for use in forking servers, and to
106 work around limitations in PAR.
107 https://rt.cpan.org/Ticket/Display.html?id=65665
108
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109Bug fixes:
110
111 - paletted writes to a masked image are now masked correctly.
112 Revealed by new coverage tests.
113
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114 - update the filter plugin documentation.
115 https://rt.cpan.org/Ticket/Display.html?id=56513
116
4326b23a 117 - add the matrix() method to Imager::Matrix2d to allow creation of a
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118 matrix with specified co-efficients. You can now multiple an
119 Imager::Matrix2d object by a 9 element array ref or a number.
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120 https://rt.cpan.org/Ticket/Display.html?id=29938
121
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122 - really fix loading TTF fonts with FT2 when FT1 isn't available.
123 Thanks to Leolo (Philip Gwyn)
124 https://rt.cpan.org/Ticket/Display.html?id=65386
125 https://rt.cpan.org/Ticket/Display.html?id=62855
126
40e78f96
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127 - make sure each test script that needs testout/ creates it.
128 https://rt.cpan.org/Ticket/Display.html?id=65088
129
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130 - handle a slightly different warning from libtiff 4.x
131 https://rt.cpan.org/Ticket/Display.html?id=65268
132
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133 - the sat transform2() op returned an incorrect saturation.
134 https://rt.cpan.org/Ticket/Display.html?id=65391
135
d33f20c1 136Imager 0.80 - 17 Jan 2011
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137===========
138
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139 - added coverage tests for Imager::Fountain and Imager::Color::Float
140
141 - Imager is now maintained in git
142 http://git.imager.perl.org/imager.git
143 git://git.imager.perl.org/imager.git
144
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145Bug fixes:
146
147 - images with an translucent alpha channel were not scaled correctly
148 by the default (qtype=normal) scaling method.
149 https://rt.cpan.org/Public/Bug/Display.html?id=63922
150
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151 - Imager::Color::Float now translates "#FFFFFF" to white instead of
152 just a little darker.
153
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154 - make the default color map build algorithm "mediancut". This
155 changes the default color map builder for writing GIFs back to what
156 it was in 0.77, reverting a performance regression.
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157 https://rt.cpan.org/Ticket/Display.html?id=64785
158
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159 - handle failure to create a masked image correctly
160
95c08d71 161Imager 0.79 - 10 Dec 2010
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162===========
163
164 - add Imager::Test to the POD coverage tests and document the missing
165 functions.
166
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167 - the convert() method now optimizes the case where all output
168 channels are either 0, sourced from a single input channel or 1.
169 This significantly speeds up presets like "addalpha", "green".
170 https://rt.cpan.org/Ticket/Display.html?id=51254
171
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172 - add wiggle.pl sample, as suggested by Dan Oppenheim.
173
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174 - add the combine() method to combine channels from multiple source
175 images into a new image
176 https://rt.cpan.org/Ticket/Display.html?id=11872
177
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178Bug fixes:
179
180 - treat the co-efficients for convert() as doubles instead of floats.
181
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182 - If a higher (earlier) priority font handler failed to load, that
183 would crash preventing loading of later font handlers.
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184 https://rt.cpan.org/Ticket/Display.html?id=62855
185
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186 - parse defines from the options returned by pkg-config --cflags
187 https://rt.cpan.org/Ticket/Display.html?id=63223
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188
189 - a regen of the MANIFEST revealed that GIF and FT2 tests weren't
190 included in the tarball. They are now included.
a9120a5e 191
893474f1 192Imager 0.78 - 4 Oct 2010
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193===========
194
195Bug fixes:
196
197 - don't access deprecated members of the png_structp.
198 https://rt.cpan.org/Ticket/Display.html?id=60242
199
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200 - document that using color objects is faster than supplying colors
201 by name, etc.
202 https://rt.cpan.org/Ticket/Display.html?id=61047
203
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204 - Imager::Probe now accepts array references for incpath and libpath.
205 https://rt.cpan.org/Ticket/Display.html?id=60244
206
b6035795 207Imager 0.77_02 - 27 Sep 2010
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208==============
209
95b9922f 210 - moved Win32, FreeType 2 font support into sub-modules.
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211 https://rt.cpan.org/Ticket/Display.html?id=49616 (partial)
212 Uses Imager::Probe now.
213 https://rt.cpan.org/Public/Bug/Display.html?id=61328
214
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215 - tested successfully with jpeg-8b
216 https://rt.cpan.org/Ticket/Display.html?id=60221
217
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218Bug fixes:
219
220 - from _01: look for missing file support test files in the right
221 places.
222
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223 - flood_fill() wouldn't fill the right side of a single scan-line
224 fill area.
225 Thanks to Nicolas Roggli for reporting this.
226
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227 - flood_fill wouldn't fill to the left edge of the image if the
228 starting line didn't reach the left edge.
229 Thanks to Nicolas Roggli for reporting this.
230
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231Imager 0.77_01 - 13 Sep 2010
232==============
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233
234 - add each library-directory/pkgconfig/ to the pkg-config search path
235 in Imager::Probe.
236 Thanks to Justin Davis.
237 https://rt.cpan.org/Ticket/Display.html?id=60491
238
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239 - moved GIF, TIFF, JPEG file handling code into sub-modules in
240 preparation for separate distribution.
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241 https://rt.cpan.org/Ticket/Display.html?id=49616 (partial)
242
173c91ba
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243 - optimize filled box drawing (color, not fill)
244
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245Bug fixes:
246
247 - Imager::Probe was calling ExtUtils::Liblist to initialize
248 LD_RUN_PATH supplying an undefined value rather than the found
249 directory. Thanks to Justin Davis.
250 https://rt.cpan.org/Ticket/Display.html?id=60491
251
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252 - only prepend ./ to font filenames when passing them to T1Lib and
253 then only when it would use its search mechanisms.
254 https://rt.cpan.org/Ticket/Display.html?id=60509
255
173c91ba 256 - fix the cache check for the X rgb.txt loader. This is typically
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257 used for color translation on Unix-like systems, and the fix
258 improves performance of supplying colors by name by about 80 times.
259 Test code that managed 3400 10x10 pixel boxes/second sped up to
260 25700 boxes/second.
b851aeeb 261
d3a96113
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262 - clarify that Imager doesn't write EXIF metadata to images.
263 https://rt.cpan.org/Ticket/Display.html?id=60637
264
265 - Imager::Probe can now search subdirectories under its include path.
266 Used by the PNG Makefile.PL to find headers and libraries when they
267 aren't in the base directory, as in cygwin.
268 https://rt.cpan.org/Ticket/Display.html?id=60635
269
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270Imager 0.77 - 11 Aug 2010
271===========
272
273I don't want Imager::File::PNG indexed as part of Imager, but forgot
274to update the META.yml before updating the version.
275
276 - don't index Imager::File::PNG as part of Imager
277
278 - add resources to META.yml
279
280Imager 0.76 - not released
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281===========
282
283Bug fixes:
284
285 - the align_string() method would ignore a string of "0" due to a
286 mis-use of C< ||= >.
287 Thanks to Maurice Height for reporting this.
288 https://rt.cpan.org/Ticket/Display.html?id=60199
289
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290Imager 0.75_03 - 09 Aug 2010
291==============
292
293Bug fixes:
294
295 - read_types() and write_types() would include png when it wasn't
296 available due to a problem with the %formats tie
297
298 - handle dependent libraries correctly (eg -lpng requiring -lz) in
299 the code run phase of library probing.
300
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301Imager 0.75_02 - 07 Aug 2010
302==============
303
304Bug fixes:
305
306 - add file missing from MANIFEST, which was causing TIFF failures.
307
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308Imager 0.75_01 - 06 Aug 2010
309==============
310
311Test release for the new PNG probe.
75812841 312
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313 - added the ability to read multiple-image PNM files.
314 Note that unlike the pbm/pgm/ppm specification this accepts mixed
315 format files and allows white space padding between files.
316 Thanks to Philip Gwyn (Leolo) for this patch.
317
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318 - moved the PNG file handling code into a sub-module in preparation
319 for separate distribution.
320 https://rt.cpan.org/Ticket/Display.html?id=49616 (partial)
321 Also helps avoid complications from -I/-L compile/link options from
322 other libraries.
323
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324Bugs:
325
326 - Imager->new(data => $data) didn't try to process image file data in
327 $data
328 https://rt.cpan.org/Ticket/Display.html?id=58761
329
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330 - t/t50basicoo.t no longer depends on the other tests to generate its
331 input files.
332 https://rt.cpan.org/Ticket/Display.html?id=9798
333 Also, it wasn't testing pnm (pnm vs ppm mix-up)
334
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335 - update the documentation of hardinvert to match the change in 0.62.
336 https://rt.cpan.org/Ticket/Display.html?id=59785
337
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338 - added hardinvertall filter which also inverts the alpha channel
339 (sorry for the mess)
340
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341 - when probing for TIFF, set LD_RUN_PATH just as the Makefile does so
342 the probe can find the library for the test run.
343 https://rt.cpan.org/Ticket/Display.html?id=57518
344
75812841 345Imager 0.75 - 20 Jun 2010
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346===========
347
348 - use PERL_NO_GET_CONTEXT to slightly improve performance on threaded
349 perls (not measured)
350
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351Bugs:
352
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353 - an opacity fill based on a fountain fill would segfault when
354 filling an 8-bit/sample image.
355
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356 - merge thickline branch polygon fix
357 https://rt.cpan.org/Ticket/Display.html?id=43518
358
41c88ecd 359Imager 0.74 - 7 May 2010
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360===========
361
362Bug fixes:
363
364 - read_multi() didn't handle a missing file format library correctly,
365 aborting on failing to call i_readgif_multi_wiol() or
366 i_readtiff_multi_wiol().
367
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368 - fix spelling errors patched by Debian
369 http://svn.debian.org/viewsvn/pkg-perl/trunk/libimager-perl/debian/patches/spelling.patch?revision=54839&view=markup
370
371 - add an (unshipped) author test to spellcheck Imager's POD.
7468f3fa 372
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373 - update the TIFF file format documentation
374 https://rt.cpan.org/Ticket/Display.html?id=56510
375
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376 - lib/Imager/IO.pod was written almost 4 years ago but never shipped.
377
704f12d5 378Imager 0.73 - 15 Mar 2010
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379===========
380
381 - implement outline circles, both anti-aliased and not
382 https://rt.cpan.org/Ticket/Display.html?id=19755
383
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384 - a combine => "none" fill to a 1 or 3 channel image would produce
385 the incorrect colour.
386
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387Imager 0.72 - 09 Dec 2009
388===========
389
390Bump version for release, since 0.71_03 is stable with CPAN testers.
391
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392Imager 0.71_03 - 5 Dec 2009
393==============
394
395 - further adjust the threads test so it only performs the tests on
396 perls where it's expected to work, and only if the threads module
397 can be loaded.
398
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399Imager 0.71_02 - 1 Dec 2009
400==============
401
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402 - adjust the way we load the threads module for the threads test so
403 it works with non-threaded perls
0750777c 404
b89f0fcd 405Imager 0.71_01 - 30 Nov 2009
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406===========
407
408Bug fixes:
409
410 - use scanline oriented operations to flip images instead of pixel
411 operations
412 https://rt.cpan.org/Ticket/Display.html?id=39278
413
414 - use double/sample operations to flip large sample images instead of
415 8-bit sample operations.
416 https://rt.cpan.org/Ticket/Display.html?id=39280
417
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418 - fix POD nits
419 https://rt.cpan.org/Ticket/Display.html?id=51874
420
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421 - prevent double-frees when someone creates Imager objects and then
422 creates a thread. Note: this just handles some simple cases,
423 Imager doesn't support perl threads, and isn't likely to.
424 https://rt.cpan.org/Ticket/Display.html?id=52268
425
3517794b 426Imager 0.71 - 16 Nov 2009
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427===========
428
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429 - add the opacity fill type - an adaptor that modifies the opacity of
430 another fill.
431
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432Bug fixes:
433
434 - the conv filter now enforces that the sum of the coefficients is
435 non-zero. Also, rather than skipping pixels off the edge off the
436 edge of the image, the closest edge pixel is used. Previously
437 dividing by the zero sum of coefficients could cause invalid
438 results or runtime exceptions.
439 Thanks to David Cantrell's Alpha-NetBSD CPAN test box for revealing
440 this bug.
441
189d5775 442Imager 0.70 - 21 Sep 2009
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443===========
444
445Bug fixes:
446
447 - release image row and comments memory on all error returns in gif
448 reader
449
450 - handle zero length extensions, previously this would cause a null
451 pointer dereference
452 Thanks to Krzysztof Wojtaƛ for the test data and fix for this.
453
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454 - an integer division meant that preview scaling to below 1 pixel
455 wide or high (which isn't too useful anyway) was calculating using
456 NaNs on most platforms, and causing an exception on others.
457 Thanks to David Cantrell for producing a backtrace of the crash on
458 his Alpha-NetBSD CPAN test box which made it possible to track this
459 down.
460
b1e29946 461Imager 0.69 - 08 Sep 2009
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462===========
463
b1e29946 464Bug fixes:
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465
466 - broken test fix - was attempting to call a function skip_all, when
467 that should be a parameter to plan().
468
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469 - briefly document apidocs.perl, the tool used to build
470 Imager::APIRef and make some minor enhancements
471
472 - various minor documentation enhancements and fixes.
473
5920304a 474Imager 0.68 - 07 Sep 2009
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475===========
476
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477 - Imager->new(file => $filename) and other similar incantations will
478 load the given file.
479 https://rt.cpan.org/Ticket/Display.html?id=48261
480
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481Bug fixes:
482
483 - avoid using CHECK as a label in Imager::Test
484 http://nntp.x.perl.org/group/perl.cpan.testers/5220921
485
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486 - re-work most image file test files that require a library into
487 separate library present/not present files to remove stupidly long
488 conditionals
489
490 - don't treat rubthrough() outside the bounds of the target image as
491 an error.
492 http://nntp.x.perl.org/group/perl.cpan.testers/5185716
493
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494Imager 0.67_01 - 02 Sep 2009
495==============
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496
497Bug fixes:
498
499 - correct documentation of default of raw image interleave read
500 parameter
501 https://rt.cpan.org/Ticket/Display.html?id=42074
502
503 - add raw_ prefix to raw read parameters, though the original names
504 still work.
505
506 - fail the read if an invalid raw_interleave parameter is supplied
507
508 - warn if no interleave or raw_interleave parameter is supplied,
509 since the documented default was wrong, and incompatible with the
510 write format
511
512 - for reading raw images, if raw_storechannels > raw_datachannels,
513 set the extra channels in the image to 0
514
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515 - when probing for executables like freetype-config, search for .bat
516 and .cmd on MSWin32, as well as .exe.
517 https://rt.cpan.org/Ticket/Display.html?id=49275
500888da 518
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519 - re-work the external libraries section of README:
520 - list Debian and Redhat package names for each library
521 - reformatting
522 - update URLs
523
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524 - use the new EU::MM META_MERGE facility instead of generating
525 META.yml from scratch
526 https://rt.cpan.org/Ticket/Display.html?id=47888
527
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528 - use Devel::CheckLib (bundled, modified) to check which release of
529 libtiff is installed and reject 3.9.0
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530 http://bugzilla.maptools.org/show_bug.cgi?id=2088
531 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=543079
d6b51d8c 532
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533Imager 0.67 - 12 Dec 2008
534===========
535
536Bug fixes:
537
538 - fix a packaging error
539
cca21862 540Imager 0.66 - 12 Dec 2008
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541===========
542
6b22ba84
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543 - 24-bit color .ICO/.CUR files can now be read.
544
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545Bug fixes:
546
6b22ba84
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547 - an optimization skipping 0 src alpha values could cause the
548 rubthrough() to read past the end of a buffer.
549 http://www.nntp.perl.org/group/perl.cpan.testers/2008/05/msg1509184.html
550
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551 - corrected a reference leak where writing GIFs would leak memory.
552 This could also happen calling to_paletted().
553 Also documented the underlying long existing feature where the
554 colors parameter is filled with the generated color table and added
555 tests for it.
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556 http://rt.cpan.org/Ticket/Display.html?id=41028
557
8e7f5809
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558 - write out the image size in bytes field of a BMP correctly.
559 http://rt.cpan.org/Ticket/Display.html?id=41406
560
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561 - add limited tests for Imager::ExtUtils
562
563 - make Imager::ExtUtils->includes use an absolute path, since
564 a relative path could cause failures using Inline::C.
565 http://rt.cpan.org/Ticket/Display.html?id=37353
566
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567 - re-arrange the POD for Imager::Font::BBox:
568 - mark total_width(), pos_width(), end_offset() obsolete, since
569 they're mostly for backwards compatibility
570 - group width methods and height methods
571 https://rt.cpan.org/Ticket/Display.html?id=39999
17d9fe35 572
0727e3f5 573Imager 0.65 - 20 May 2008
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574===========
575
576Bug fixes:
577
578 - In some cases when an error occurs reading those parts of a JPEG
579 file after the image the scan-line buffer could be freed a second
580 time. In cases where the the error occured while reading the image
581 data it's possible that the buffer could have leaked.
582 Thanks to Gabriel Vasseur for reporting this and help in tracking
583 it down.
584
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585 - the gif_screen_height tag was overriding the screen width and being
586 ignored for the screen height when present.
587 https://rt.cpan.org/Public/Bug/Display.html?id=35568
588
e02d22d2 589Imager 0.64 - 23 April 2008
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590===========
591
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592This is a bug fix release. This includes a fix for a possible
593security issue.
594
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595Bug fixes:
596
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TC
597 - Possible security issue: The floating point sample path for image
598 based fills had a buffer overflow. This would overwrite the end of
599 a malloc()ed buffer with double precision floats.
600 http://rt.cpan.org/Ticket/Display.html?id=35324
6912d85a 601 CVE-2008-1928
e02d22d2 602
de470892
TC
603 - check that the result of fileno($fh) is defined rather than simply
604 true when read() or write() is supplied with an fh parameter.
605 http://rt.cpan.org/Ticket/Display.html?id=35139
606
607 - i_scale_axis() wasn't checking the result of i_img_new_ch()
608 resulting in a SIGSEGV when attempting to scale an image to a size
609 too large to fit in memory. This is a NULL pointer access issue,
610 not a buffer overflow.
611 Added a check for the failure.
612 scale_calculate() (and hence scale()) will now fail if any of the
613 scale size parameters are a reference.
614 http://rt.cpan.org/Ticket/Display.html?id=35172
615
04f85f63
TC
616 - Regression: filling a greyscale image with a hatch used the wrong
617 color channels from the supplied fg/bg colors.
618 https://rt.cpan.org/Ticket/Display.html?id=35278
619
a256aec5
TC
620 - fixed a related problem for image fills.
621
49240201 622Imager 0.63 - 7 April 2008
33b0ffa6
TC
623===========
624
242d7497
TC
625This release primarily contains changes to improve ease of use -
626rather than you having to convert images to the appropriate number of
627channels, Imager handles it internally. How to handle drawing colors
628and the default combine mode is a thornier problem left for some other
629release.
630
d1555273
TC
631 - the font libraries are now only initialized when needed.
632 http://rt.cpan.org/Ticket/Display.html?id=28825
633
9b1ec2b8
TC
634 - moved the imtoc.perl code into Imager::Preprocess
635
636 - paste() and rubthrough() now adapt the source image data to the
637 destination, so you can now safely paste/rubthrough from greyscale
638 images to color images or back, or from alpha channel images to
639 noalpha channels or back.
640 https://rt.cpan.org/Ticket/Display.html?id=30908
641
642 - rubthrough() now falls back to pasting when the source doesn't have
643 an alpha channel. This effectively treats the source as having a
644 max alpha channel, the right thing to do.
645 http://rt.cpan.org/Ticket/Display.html?id=29944
646
647 - re-worked most of the area filling code to use a common set of
648 functions when filling.
649 Corrected normal combine mode.
650 Rewrote most of the combine modes to match the way the SVG draft
651 defines them with respect to a translucent source and destination.
652 Added tests for translucent source and destination.
653 Added tests to check 8-bit/sample and double/sample combines work
654 similarly.
655 https://rt.cpan.org/Ticket/Display.html?id=29879
656
07d9c639
TC
657 - writing a 2 or 4 channel image to a JPEG file will now write that
658 image as if composited against a background, black by default,
659 overridable with the i_background tag/parameter.
6e4af7d4
TC
660 https://rt.cpan.org/Ticket/Display.html?id=29876
661
07d9c639
TC
662 - writing a 2 or 4 channel image to a PGM/PPM file will now write
663 that image as if composited against a background, black by default,
fa90de94
TC
664 overridable with the i_background tag/parameter.
665 http://rt.cpan.org/Ticket/Display.html?id=30074
666
07d9c639
TC
667 - writing a 2 or 4 channel image to a BMP file will now write that
668 image as if composited against a background, black by default,
669 overridable with the i_background tag/parameter.
670 http://rt.cpan.org/Ticket/Display.html?id=30075
671
33b0ffa6
TC
672Bug fixes:
673
674 - Imager::Matrix2d->translate() now only requires one of the x or y
675 parameters.
676 http://rt.cpan.org/Ticket/Display.html?id=29937
677
2757bad0
TC
678 - mixing qtype scaling now sets all channels of a pixel to zero if
679 the pixel has zero coverage (zero alpha). This should produce more
680 compressible output files.
681 http://rt.cpan.org/Ticket/Display.html?id=32324
682
3da08517
TC
683 - removed the pointless #! line from lib/Imager/Font/Wrap.pm
684 Noticed when I saw:
685 https://bugzilla.redhat.com/show_bug.cgi?id=166254
686 I'm not changing the #! lines of the sample code, since it's sample
687 code, not intended for installation.
688 http://rt.cpan.org/Ticket/Display.html?id=33408
689
242d7497
TC
690 - some TGA images weren't being detected correctly as TGA images
691 https://rt.cpan.org/Ticket/Display.html?id=32925
692
693 - handling of the left-over bit for 16-bit/pixel TGA images has been
694 changed to match the behaviour of the GIMP. Previously the bit
695 being set was treated as an opaque pixel, but one user reported a
696 problem with loading such an image. I haven't been able to find any
697 tools beyond the GIMP that handle alpha-channel 16-bit TGAs, so
698 I'll match it's behaviour. See issue 114913 in the GIMP's
699 bugzilla.
700 http://rt.cpan.org/Ticket/Display.html?id=32926
701
5daa9d34 702Imager 0.62 - 10 December 2007
ac8138b0
TC
703===========
704
d8e0c3ba
TC
705 - Makefile.PL now expands ~/path supplied to --incpath or --libpath
706 to /path under your home directory.
707 http://rt.cpan.org/Ticket/Display.html?id=29484
708
50ff958e
TC
709 - the old dynaload code used Mach API functions to load dynamic
710 libraries on Mac OS X. These APIs have been deprecated in OS X
711 10.5 and were causing some build problems.
712 So henceforth Imager uses the dlopen() family of functions, and you
713 will need version 10.3 or later of OS X.
714
3309187a
TC
715 - added the det() function to the transform2() engine.
716 added the sample quad_to_square.pl
717 Courtesy Richard Fairhurst.
718 http://rt.cpan.org/Ticket/Display.html?id=31244
719
ac8138b0
TC
720Bug fixes:
721
722 - samples/gifscale.pl sourced the base value for gif_top from
723 gif_left.
724 Thanks to Eleneldil G. Arilou for pointing this out.
725
678a9a65
TC
726 - t/t82inline.t no longer loads B at runtime, to work around a bug
727 in some 5.005_0[45] installations.
728 http://rt.cpan.org/Ticket/Display.html?id=30508
729
730 - work around Module::Depends::Intrusive bug #21229
731 http://rt.cpan.org/Ticket/Display.html?id=30520
ac8138b0 732
bea65b1f
TC
733 - the hardinvert filter no-longer inverts the alpha channel.
734 http://rt.cpan.org/Ticket/Display.html?id=30002
735
736 - the hardinvert filter now supports large samples
737
b7809486 738Imager 0.61_02 - 28 November 2007
f74e6efc 739==============
874c55db 740
bd8052a6
TC
741 - major TIFF support re-work
742 http://rt.cpan.org/Ticket/Display.html?id=20329
743
744 - added a C level image interface for accessing samples from 1-32
745 bits, exposed this at the perl level in getsamples()
746
747 - the conv filter now works at floating point precision for high bit
748 images
749
750 - added is_bilevel method to test whether an image should be written as
751 a bilevel image if the image format supports it.
752
753 - added -log-stderr as an Imager import list option
754
755 - added some important types to Imager::APIRef
756
757 - added test_image_double() to Imager::Test
758
874c55db
TC
759Bug fixes:
760
761 - Imager::Fountain couldn't read GIMP gradient files with 10 or more
762 segments
763
764 - the scale() method with qtype mixing now handles images with an
765 alpha channel correctly.
766
8d17eae9
TC
767 - fixed a broken link from the "animated GIF" entry in the concept index.
768 Thanks to Slaven Rezic.
769 http://rt.cpan.org/Ticket/Display.html?id=30889
770
d3bf4eaf
TC
771 - on some perl's the infix expression parser test would fail due to
772 actions in the grammar returning false. Made sure all actions return
773 a true value.
8b96ad6b
TC
774 Thanks to Richard Fairhurst for spending a lot of time in tracking
775 down this problem.
680c329d 776 http://rt.cpan.org/Public/Bug/Display.html?id=29562
d3bf4eaf 777
d06f6707 778Imager 0.61 - 5 November 2007
1cfa190e
TC
779===========
780
781 - added samples/gifscale.pl, which adjusts the screen size/position tags
782 when scaling an animated gif
783 http://rt.cpan.org/Ticket/Display.html?id=27591
784
8a2cd317
TC
785Bug fixes:
786
e7ac18bd
TC
787 - correct handling of sz in matrix_transform() - this should allow
788 perspective type transformations to work now.
789 http://rt.cpan.org/Ticket/Display.html?id=29936
790
8a2cd317
TC
791 - prevent a cast to integer warning on x64 builds in datatypes.c
792 also fixed some other type warnings
793 https://rt.cpan.org/Ticket/Display.html?id=30204
794
9188b23e
TC
795 - some sub-directory tests depended on files produced by the parent
796 directory tests
797 http://rt.cpan.org/Ticket/Display.html?id=30203
798
7febff1d
TC
799 - Imager::Font::Wrap doesn't correctly set savepos
800 thanks to Nikita Dedik and Eleneldil G. Arilou for reporting this.
801 http://rt.cpan.org/Ticket/Display.html?id=29771
802
76411e99
TC
803 - test 171 in t/t01introvert.t was failing on perls configured to
804 use long double.
805 http://rt.cpan.org/Ticket/Display.html?id=29413
806
3f29de50
TC
807 - the code for the transform2() uminus operator was missing a break.
808 Added tests for better code coverage of the ops.
809 http://rt.cpan.org/Ticket/Display.html?id=29296
810
ed107438
TC
811 - the SGI RLE compression code could overflow its compression buffer
812 http://rt.cpan.org/Ticket/Display.html?id=30334
813
814 - the 32-bit output function used by the SGI code only handled values
815 under 0x10000. This was most noticable when writing large RLE images.
816 http://rt.cpan.org/Ticket/Display.html?id=30335
817
c7481ae1
TC
818 - validate chan_count for chans == NULL for each of the i_gsamp()
819 implementations.
820 http://rt.cpan.org/Ticket/Display.html?id=28985
821
ff37fc3f
TC
822 - attempt to work around the test failure at
823 http://www.nntp.perl.org/group/perl.cpan.testers/2007/09/msg650810.html
824 http://rt.cpan.org/Ticket/Display.html?id=29562
825
f245645a
TC
826 - improve the error messages produced when attempting to read or write
827 an unknown image file format.
828 http://rt.cpan.org/Ticket/Display.html?id=30103
829
333d7485
TC
830 - improve the transform2() documentation
831 http://rt.cpan.org/Ticket/Display.html?id=29267
832
3b115720
TC
833 - correctly generate the author key in META.yml
834 http://rt.cpan.org/Ticket/Display.html?id=30377
835
13c9a303
TC
836 - correctly blend a rotated (or matrix_transformed()) image when
837 performing interpolation in the presence of an alpha channel.
8a071022
TC
838 Also corrected the centring of the rotated image on the output
839 image.
13c9a303 840
0e622083 841Imager 0.60 - 30 August 2007
bcff4dd9
TC
842===========
843
d5477d3d
TC
844 - Finished/rewrote Arnar's old SGI RGB file format support, so Imager
845 now has full SGI RGB image format, including RLE and 16-bit/sample
846 images.
847 https://rt.cpan.org/Ticket/Display.html?id=8666
848
849 - logging functions are now available in the API
850
a60905e4
TC
851 - applied Gabriel Vasseur's patch
852 added documentation, further tests, and support for greyscale images
853 Obviously problems are my fault :)
854 https://rt.cpan.org/Ticket/Display.html?id=28142
855
413dc198
TC
856 - the mask for ICO/CUR images is now applied as an alpha channel to
857 the returned image. For the old behaviour, supply ico_masked => 0
858 to read() or read_multi(). This should be less confusing when
859 using Imager as a general image processor.
860 https://rt.cpan.org/Ticket/Display.html?id=29001
861
bcff4dd9
TC
862Bug fixes:
863
864 - in some cases it's possible for giflib/libungif to return color
865 indexes outside the range of colors defined by the image's palette.
866 We now expand the palette to match the indexes used.
867 Thanks to Gabriel Vasseur for reporting this.
868
02576e8d
TC
869 - fixed various memory leaks that could occur when failing to read png,
870 jpeg, bmp or tga files.
871
b3aa972f
TC
872 - to avoid confusion, channels not present in the image are returned as
873 zero by getscanline(). This has no effect on the C level i_glin()
874 and i_glinf() API functions which continue to not set the unused
875 channels.
876
d5477d3d
TC
877 - the convert() method now returns an image of the same sample size as
878 the source image.
879 https://rt.cpan.org/Ticket/Display.html?id=28492
880
baa880ef
TC
881 - remove repeated text in Imager::Files
882 http://rt.cpan.org/Ticket/Display.html?id=27589
883
884 - be even more explicit that scale() and friends don't modify the source
885 image, but return a new image.
886 http://rt.cpan.org/Ticket/Display.html?id=28570
887
0561d49c
TC
888 - improve the error message from errstr() when you try to load a font
889 for which the driver hasn't been built in Imager.
890 http://rt.cpan.org/Ticket/Display.html?id=27571
891
d8a39ce0
TC
892 - transparency is now enabled by default when writing GIF images
893 http://rt.cpan.org/Ticket/Display.html?id=27615
894
5730d6e7
TC
895 - Imager would not load on Windows 98
896 http://rt.cpan.org/Ticket/Display.html?id=27653
897
b4996113 898Imager 0.59 - 14 June 2007
e6e94ab0
TC
899===========
900
901Bug fixes:
902
903 - fixes a regression introduced by the fixes for RT 11972
904 http://rt.cpan.org/Ticket/Display.html?id=27546
905
9fc9d0ca
TC
906 - cropping outside the image would return an Imager object with
907 no low-level image object, instead of returning false.
908 Fixed by: Philip Gwyn (Leolo)
909 http://rt.cpan.org/Ticket/Display.html?id=27509
910
7e7508dd
TC
911Imager 0.58 - 16 May 2007
912===========
913
914No significant changes from 0.57_01.
915
1970a2c7
TC
916Imager 0.57_01 - 11 May 2007
917==============
d034a178 918
f8e36694
TC
919 - added to_rgb16 to produce a 16-bit/sample version of an image
920
95b2bff4
TC
921 - improve freetype 1.x text output efficiency
922
d034a178
TC
923Bug fixes:
924
925 - search another place for rgb.txt, and check all the places
926 Imager::Color checks when deciding whether to skip testing it
927 http://rt.cpan.org/Ticket/Display.html?id=26064
928
73962964
TC
929 - use a convolution kernel size based on the stddev rather than a
930 fixed size when performing a gaussian blur
931 http://rt.cpan.org/Ticket/Display.html?id=25645
932
01b84320
TC
933 - document the difference() method's mindist parameter, and debug it.
934
7e7508dd 935 - put the Imager release number in the Inline::C generated code to
22f9ca48
TC
936 regenerate Inline code when a new release of Imager is installed.
937 http://rt.cpan.org/Ticket/Display.html?id=26278
938
fa16b6c6
TC
939 - fix rendering on alpha channel images for the FreeType 1.x driver.
940 http://rt.cpan.org/Ticket/Display.html?id=11972
941
4c84ccfb
TC
942 - fix rendering on alpha channel images for the T1lib driver.
943 http://rt.cpan.org/Ticket/Display.html?id=11972
944
1fe8316b
TC
945 - reworked library probing, we can now set more than one probe
946 function for a library. Disabled the default (non-freetype-config)
947 library probe and added an extra probe function that searches for
948 both ft2build.h and whatever it includes, and adds -I as needed.
949 Hopefully this will fix build problems like
950 http://www.nntp.perl.org/group/perl.cpan.testers/2007/05/msg472281.html
951 http://rt.cpan.org/Ticket/Display.html?id=26086
952
bb5712de
TC
953Imager 0.57 - 30 Apr 2007
954===========
955
956This is a maintenence release fixing a security issue in Imager.
957
958 - CRITICAL: a specially crafted compressed BMP file can cause a buffer
959 overflow in malloced memory. There will be further discussion of
960 this issue in the ticket below.
961 http://rt.cpan.org/Ticket/Display.html?id=26811
7e7508dd
TC
962 CVE-2007-2459 CVE-2007-2413
963 The descriptions at cve.mitre.org varied in quality, please see the
964 ticket at rt.cpan.org for a more accurate description of the issue.
bb5712de 965
d034a178 966Imager 0.56 - 1 Apr 2007
7623d340
TC
967===========
968
969 - added support for reading 16-bit/sample PGM/PPM images
970
971 - added support for writing 16-bit/sample PGM/PPM images
972
973 - improved performance of reading PBM/PGM/PPM images
974
975 - added support for writing PBM images if the image is paletted and
976 contains only black and white
977
978 - added a new make_colors value - "mono"
979
980 - switched from the svn log Changes to a manual Changes to reduce
981 noise
982
1225d272
TC
983 - new sample code - samples/flasher.pl
984
7623d340
TC
985Bug fixes:
986
987 - CRITICAL: the "Imager" typemap entry (not used by Imager itself)
988 was returning an image object with an extra reference, this
989 resulted in a memory leak.
990 http://rt.cpan.org/Ticket/Display.html?id=24992
991
992 - fix rendering on alpha channel images for the FreeType 2.x driver
993 http://rt.cpan.org/Ticket/Display.html?id=11972
994
995 - reading bmp files now consitently handles short reads. You can now
996 supply a parameter to treat a short read as successful and set
997 i_incomplete
998 http://rt.cpan.org/Ticket/Display.html?id=8426
999
1000 - previously, reading ASCII PBM files required spaces between samples,
1001 even though the format doesn't require that
1002
1225d272
TC
1003 - improved documentation of the unsharpmask filter (I hope)
1004 http://rt.cpan.org/Ticket/Display.html?id=25531
1005
1006 - force flushing of the output from i_tt_dump_names() and test output
1007 in t/t35ttfont.t to prevent output from being mixed up.
1008 https://rt.cpan.org/Ticket/Display.html?id=24859
1009
1010 - rewrite a conditional expression as an if() to hopefully work around
1011 a bug in the pre-4.0 GCC Apple shipped with OS X 10.4.
1012 https://rt.cpan.org/Ticket/Display.html?id=25561
1013
1014 - avoid Data::Dumper in regops.perl to support older releases of perl
1015 https://rt.cpan.org/Ticket/Display.html?id=24391
1016
7623d340
TC
1017Imager 0.55 - 16 Dec 2006
1018===========
1019
1020This is primarily a bug fix release.
1021
1022Note: Test::More is now a pre-requisite for Imager and is no longer bundled.
1023
1024There is one new feature:
1025
1026 - the Win32 font driver now supports UTF8 (RT 22166)
1027 http://www.cpanforum.com/threads/3276
1028 http://rt.cpan.org/Ticket/Display.html?id=22166
1029
1030Several bugs were fixed:
1031
1032 - the string() method would not output the string "0"
1033 http://rt.cpan.org/Public/Bug/Display.html?id=21770
1034
1035 - fills.c was failing to compile on Solaris 10 (compiler unknown)
1036 http://rt.cpan.org/Public/Bug/Display.html?id=21944
1037
1038 - the gif_disposal and gif_user_input tags weren't being read from
1039 the file correctly
1040 http://rt.cpan.org/Public/Bug/Display.html?id=22192
1041
1042 - gif.c was failing to build under MSVC
1043 http://rt.cpan.org/Ticket/Display.html?id=23922
1044
1045 - in some cases strings passed to the string() method were treated as
1046 terminated by NUL (chr 0)
1047 http://rt.cpan.org/Public/Bug/Display.html?id=21770
1048
1049 - on "MSWin32" perl builds we now link to -lzlib instead of -lz since
1050 that's the default build name for zlib on Win32.
1051 http://rt.cpan.org/Ticket/Display.html?id=23064
1052
1053 - search $Config{incpath} for headers too, which we should have been
1054 doing all along.
1055
1056Win32 font driver fixes:
1057
1058 - the global descent value from bounding box was the wrong sign
1059 http://www.cpanforum.com/threads/3276
1060
1061 - if the first or last glyph overflowed the left or right side of the
1062 advance width they would be clipped
1063
1064
1065Imager 0.54 - 14 Sep 2006
1066===========
1067
1068This is primarily a feature release:
1069
1070 - a new qtype value 'mixing' has been added to the scale()
1071 method. This is faster than 'normal', slower than 'preview'. This
1072 is based on the method used by pnmscale, and seems to produce less
1073 blurry results than normal.
1074 http://rt.cpan.org/Public/Bug/Display.html?id=20677
1075
1076 - the rubthrough() method can now render onto images with an alpha
1077 channel.
1078 http://rt.cpan.org/Ticket/Display.html?id=20678
1079
1080 - the read_multi() method now falls back to calling doing a single
1081 image read via the read() method and write_multi() will now fall
1082 back to calling write() if a single image is supplied. This means
1083 you can simply call the read_multi() or write_multi() functions
1084 without having to check if the type is formatted by that method.
1085 http://rt.cpan.org/Ticket/Display.html?id=19457
1086 http://rt.cpan.org/Ticket/Display.html?id=19458
1087
1088 - the GIF loop extension can now be written. If you don't have
1089 libungif/giflib 4.1.4 (or some distribution's bugfixed equivalent) you
1090 should upgrade.
1091 http://rt.cpan.org/Ticket/Display.html?id=21185
1092
1093 - getscanline() and setscanline() can now read/write palette index
1094 based data from/to the image for paletted images, by setting type to
1095 'index'.
1096 http://rt.cpan.org/Ticket/Display.html?id=20338
1097
1098 - we no longer hassle you to disable GIF support
1099 http://rt.cpan.org/Ticket/Display.html?id=20687
1100
1101 - minor documentation fixes
1102
1103
1104Imager 0.53 - 26 Jul 2006
1105===========
1106
1107This is a bugfix release.
1108
1109Some test code was left in a code path not covered by the test
1110suite. A test was added to cover this code path and the test code was
1111removed.
1112http://rt.cpan.org/Public/Bug/Display.html?id=20705
1113
1114
1115Imager 0.52 - 25 Jul 2006
1116===========
1117
1118This is primarily a feature release, but contains a fair few bug
1119fixes, new features:
1120
1121 - ability to read and write MS Windows ICO and CUR files
1122
1123 - you can now add file format plugins to support new file formats
1124
1125 - add POD coverage tests
1126
1127 - setcolors() and addcolors() now accept color names and so on
1128 instead of requiring Imager::Color objects.
1129 http://rt.cpan.org/Ticket/Display.html?id=20056
1130
1131 - flood_fill() can now fill to a specified border color instead of
1132 just to the area the same color as the seed.
1133 http://rt.cpan.org/Ticket/Display.html?id=19618
1134
1135
1136Bug fixes:
1137
1138 - bounding_box for the T1 driver wasn't converting UTF8 to ascii when
1139 calculating the advance width.
1140 http://rt.cpan.org/Public/Bug/Display.html?id=20554
1141
1142 - bounding_box for the T1 driver wasn't including leading and
1143 trailing spaces in the bounding box as the other drivers did, it also
1144 produced strange results for empty strings or strings containing only
1145 spaces
1146
1147 - when reading CMYK jpeg images they were being transferred to the
1148 image object as is, producing a four channel image. It only looked ok
1149 due to an old still unfixed Photoshop bug. We now convert from the
1150 inverted CMYK that photoshop (and Corel for example) produce into RGB.
1151 http://rt.cpan.org/Ticket/Display.html?id=20416
1152
1153 - reading a CYMK TIFF would result in a 4 channel image, reading any
1154 image with more than 4 channels (eg. RGB with 2 alpha channels) would
1155 result in an error.
1156 http://rt.cpan.org/Ticket/Display.html?id=20415
1157
1158 - added /usr/local/include to the default include search path, since
1159 we were already searching /usr/local/lib for libraries.
1160
1161And various minor fixes and documentation updates.
1162
1163
1164Imager 0.51 - 23 Apr 2006
1165===========
1166
1167 - fix a validation bug when processing JPEG EXIF data that can cause
1168 a crash
1169 http://rt.cpan.org/Public/Bug/Display.html?id=18496
1170
1171 - fix mis-processing of the src_maxx and src_maxy parameters of the
1172 paste() method
1173 http://rt.cpan.org/Public/Bug/Display.html?id=18712
1174
1175 - fix a problem in Imager's "smart" handling of the color parameter
1176 to various methods.
1177 http://rt.cpan.org/Public/Bug/Display.html?id=18561
1178
1179
1180Imager 0.50 - 29 Mar 2006
1181===========
1182
1183 - CRITICAL: fixes a segmentation fault from attempting to write a 2
1184 or 4 channel image to jpeg or a 2 channel image to tga where the
1185 output is an in-memeory buffer.
1186 http://rt.cpan.org/Public/Bug/Display.html?id=18397
1187
1188 - fixes an incorrect pointer parameter in the PNG code
1189 http://rt.cpan.org/Public/Bug/Display.html?id=18051
1190
1191 - skip Inline::C tests when building in a directory with spaces
1192 http://rt.cpan.org/Public/Bug/Display.html?id=18049