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1612 Commits

Author SHA1 Message Date
John Cupitt
e46a56e137 remove lcms1 support 
it had bitrotted and no longer worked properly
 2017-08-02 13:39:28 +01:00
John Cupitt
302f4f2517 Merge branch '8.5' 2017-08-02 11:05:39 +01:00
John Cupitt
58f9757467 fix transparency detection in merge 
a typo meant we were just testing the first band for zero, not all three

thanks Haida!
 2017-08-02 10:41:10 +01:00
John Cupitt
a3b226aa9b version bump 2017-08-02 10:40:17 +01:00
John Cupitt
639b0f5021 Merge branch '8.5' 2017-07-29 10:40:44 +01:00
John Cupitt
69f70a7e24 Merge branch '8.5' into tweak-smartcrop-8.5 2017-07-28 18:04:23 +01:00
John Cupitt
1e7541bfb8 add find_trim 
compiles, not yet working
 2017-07-25 14:52:45 +01:00
John Cupitt
a8fb38fb6a Merge branch '8.5' 2017-07-08 16:06:18 +01:00
John Cupitt
64fe910fc5 fix DPI mixup 
librsvg defaulted to 90 DPI, but libvips to 72 DPI -- add a correction
factor

thanks Fosk!

see https://github.com/jcupitt/libvips/issues/688
 2017-07-08 12:31:36 +01:00
John Cupitt
9a1c3f9405 rename 'disc' as 'memory' 
the old 'disc' flag to open defaulted TRUE and disabled read via disc if you
set it FALSE, which was very confusing

replace it with a flag called 'memory' which defaults FALSE and forces
read via memory if set TRUE

'disc' is still there and still works, it's just tagged as deprecated

see https://github.com/jcupitt/libvips/issues/677
 2017-07-07 09:45:49 +01:00
John Cupitt
91457e455a add "page-height" save property 2017-06-19 09:31:49 +01:00
John Cupitt
5383554724 Merge branch '8.5' 2017-06-12 18:23:07 +01:00
John Cupitt
4d846534b8 transform cmyk->rgb automatically 
if:

- we are writing a cmyk image
- there is an embedded profile
- the saver does not support cmyk

see https://github.com/jcupitt/libvips/issues/676
 2017-06-12 18:19:20 +01:00
John Cupitt
869f3dae04 revise again 
seems to work on all test images now
 2017-06-09 11:50:27 +01:00
John Cupitt
aeff03b951 Merge branch '8.5' 2017-05-29 10:21:02 +01:00
John Cupitt
7bcf0bb93f don't cache thumbnail 
thanks tomasc! see

jcupitt/ruby-vips#109
 2017-05-29 10:19:21 +01:00
John Cupitt
354921df83 Merge branch '8.5' 2017-05-28 06:34:11 +01:00
John Cupitt
6a189d068b mark vipsprofile as python2 
Some distros have python3 as the default, so make vipsprofile explicitly
python2, thanks ioquatix.

See https://github.com/jcupitt/libvips/issues/667
 2017-05-28 06:33:58 +01:00
John Cupitt
027b9ccc9c Merge branch '8.5' 2017-05-26 09:09:33 +01:00
John Cupitt
7b64246af2 fix a couple of issues with huge profiles 
The base64 encode limit was 1MB, but some huge profiles can get over
that, so it's now 10MB.

transform_save_string_blob() was incorrectly setting a refstring not a
blob as an error fallback, potentially leaving a dangling pointer.

Thanks Jaume!

See https://github.com/jcupitt/libvips/issues/666
 2017-05-26 09:04:15 +01:00
John Cupitt
5216d75b83 Merge branch '8.5' 2017-05-19 16:16:16 +01:00
John Cupitt
5df65ec6fd fix tiff read with page > 0 
could break edge tiles under some circumstances
 2017-05-19 16:07:36 +01:00
John Cupitt
8c8b71d935 Merge branch '8.5' 2017-05-15 11:35:47 +01:00
John Cupitt
2b0ebb0de2 fix test suite thresholds 
changes in jpg encode/decode mean we must adjust test suite thresholds
 2017-05-15 11:21:13 +01:00
John Cupitt
6dbdc173a2 better prefix guessing on Windows 
see https://github.com/tumagonx/pygi-mingw-patches/issues/5
 2017-05-13 11:11:32 +01:00
John Cupitt
82994e4c33 add vips_thumbnail_image() 
thumbnail with an image source, see

https://github.com/jcupitt/libvips/issues/656
 2017-05-12 18:20:37 +01:00
John Cupitt
5c6979cdcb Merge branch '8.5' 2017-05-12 17:25:01 +01:00
John Cupitt
942b0446a3 revise fail handling, again 
clarify policy on file read errors and warnings:

* if the file format library reports a warning, we log it in vips, but
that's all
* if the file format library reports an error, we log it, but try to
continue
* if the file format library reports an error and fail is set, we log it
and fail

all loaders now implement this
 2017-05-12 17:22:49 +01:00
John Cupitt
a10787baa3 Merge branch 'add-force-size' 2017-05-10 17:08:32 +01:00
John Cupitt
3019e5966b vips_conv*() default to float 
we had INT as the default, but this will cause serious precision loss
with many masks ... instead, have float (always correct) as the default
and let people turn on int if they cn
 2017-05-08 13:28:23 +01:00
John Cupitt
260180197d done! but needs some tests 2017-05-04 14:54:49 +01:00
John Cupitt
2b75a372d1 more truncated png improvements 2017-05-03 10:32:24 +01:00
John Cupitt
39ea6ce492 all done 2017-04-29 10:07:41 +01:00
John Cupitt
04353f8915 added new_from_image() to python 
and tests
 2017-04-28 18:27:15 +01:00
John Cupitt
7882602dfe C/C++ done 
python next
 2017-04-26 14:52:28 +01:00
John Cupitt
b0f8246c90 Merge branch '8.5' 2017-04-26 10:31:33 +01:00
John Cupitt
cc38097560 better handling of truncated PNG files 
improve fail support, and bail out sooner

see https://github.com/jcupitt/libvips/issues/646
 2017-04-26 10:25:52 +01:00
John Cupitt
4c8d83ce85 Merge branch '8.5' 2017-04-23 18:54:40 +01:00
John Cupitt
8bf0a05948 doc polishing 2017-04-23 18:52:05 +01:00
John Cupitt
757065baab Merge branch '8.5' 2017-04-23 09:58:11 +01:00
John Cupitt
a067dc4140 oop credit fix 2017-04-23 09:57:55 +01:00
John Cupitt
d8fce50284 Merge branch '8.5' 2017-04-23 09:57:02 +01:00
John Cupitt
7938903d22 don't size caches by image width 
we were sizing buffers partly by image width, which could cause caches
to be too small if width changed down a pipeline

see https://github.com/jcupitt/libvips/issues/639
 2017-04-23 08:31:16 +01:00
John Cupitt
4f3364a2b0 skip non-image HDUs at start of fits 
some fits images have header units (HDUs) at the start with extra
metadata in ... skip over these

see https://github.com/jcupitt/libvips/issues/640
 2017-04-15 13:27:45 +01:00
John Cupitt
4094070ecb version bumo for new cycle 2017-04-15 13:26:29 +01:00
John Cupitt
e01a90f7cf revise cache sizing 
we had output buffers too large, input caches too small

see https://github.com/jcupitt/libvips/issues/639
 2017-04-13 16:24:51 +01:00
John Cupitt
38b65478e5 bump version, doc tweaks 
more sotons removed
 2017-04-07 15:59:37 +01:00
John Cupitt
a5b04091ee Merge branch 'add-markdown-docs' into 8.5 2017-04-06 11:51:36 +01:00
John Cupitt
c2cb4c38fe missing ptoto for vips_tiffsave_buffer() 
oop, thanks greut

see https://github.com/jcupitt/libvips/issues/632
 2017-04-04 10:17:05 +01:00
John Cupitt
30829ef003 add howitworks.md 2017-03-31 10:57:04 +01:00
John Cupitt
d5a706e47e better behaviour for truncated PNG files 
truncated PNG files failed with an error, even if --fail was not set ...
instead, just warn, and only error out if fail is on

see https://github.com/jcupitt/libvips/issues/629
 2017-03-30 17:13:25 +01:00
John Cupitt
cd2c1324c5 version bump for release 
and for the one tiny change
 2017-03-25 13:57:33 +00:00
John Cupitt
0a5375b6cd Merge branch 'master' into remove-seq-stalling 2017-03-15 12:26:44 +00:00
John Cupitt
fd6006bacb Merge branch 'master' into add-smartcrop 2017-03-13 20:41:22 +00:00
John Cupitt
51f96ce9af argh revert the arg order change 
we need to patch bindings instead
 2017-03-13 08:24:06 +00:00
John Cupitt
d7da3c7de7 fix vips_resize() bug 
if hscale and vscale were very different, resize could fail with "reduce
factor too large" ... just a silly typo
 2017-03-10 10:22:40 +00:00
John Cupitt
9eab57c31d Merge branch 'master' into add-smartcrop 2017-03-08 17:17:16 +00:00
John Cupitt
9e6832b34d add --smartcrop to vipsthumbnail 
does the obvious thing
 2017-03-08 14:31:00 +00:00
John Cupitt
507212e3d8 Merge branch 'master' into remove-seq-stalling 2017-03-08 09:30:48 +00:00
John Cupitt
55dcaa4ae4 add vips_rot90() etc. convenience funcs 
90/180/270 rotate as convenience functions
 2017-03-07 17:36:49 +00:00
John Cupitt
205fb817e8 change three C API funcs to match Python/C++/CLI 
vips_math2_const(), vips_boolean_const() and vips_relational_const() had
the const and oper args reversed from the Python/CLI/C++ API

add something to check for arg priority conflicts and resolve the
conflicts it found
 2017-03-07 14:28:31 +00:00
John Cupitt
162e224186 notes 2017-03-05 22:24:52 +00:00
John Cupitt
d40773515c add smartcrop 2017-03-01 15:41:26 +00:00
John Cupitt
47a4a78a33 Merge branch 'try-expat' 2017-02-28 17:19:21 +00:00
John Cupitt
1912a30bec Revert "note new seq thing" 
This reverts commit 156f729d75.
 2017-02-27 10:23:19 +00:00
John Cupitt
e1b9c789cb add dbuf object 
dynamically expanding buffer

also, escape "<>& appropriately when we write xml
 2017-02-26 17:37:46 +00:00
John Cupitt
e87654fcd9 use printf for xml write 2017-02-25 17:28:48 +00:00
John Cupitt
134ce0560c use expat for xml read 
we were using libxml for xml load, use expat instead, we get it for free
with glib
 2017-02-25 13:07:43 +00:00
John Cupitt
156f729d75 note new seq thing 2017-02-23 20:05:11 +00:00
John Cupitt
4bbd56fb0a handle transparency in vips_region_shrink() 
we weren't multiplying through alpha in vips_region_shrink(), causing
fringing on pyramids with transparent elements

thanks sickrandir!

see https://github.com/jcupitt/libvips/issues/599
 2017-02-23 17:04:25 +00:00
John Cupitt
21a5d0dfe4 speeling 2017-01-29 12:24:25 +00:00
John Cupitt
2b482fc2cf seems to work! 2017-01-27 16:43:37 +00:00
John Cupitt
7136053451 sort max/min results by y and x coordinate 
previously the list of maxima or minima found by max/min were in found
order, so essentially random

they now sort equal values by y then x coordinate, so the results are
consistent between runs, provided there are fewer maxima / minima than
are being tracked
 2017-01-24 14:25:15 +00:00
John Cupitt
c9ce8f70a1 fix an off-by-one error in hist_local 
an odd window width caused an off-by-one error in histogram construction
 2017-01-24 10:51:12 +00:00
John Cupitt
36761bcfd7 make vips_gaussnoise() pixels reproducible 
previously, pixel values were regenerated on every calculation, so they
changed on recomputation

pixel values are now generated from the pixel (x, y) coordinate plus a per-call
seed

thanks MvGulik, see

https://github.com/jcupitt/nip2/issues/60

https://github.com/jcupitt/libvips/issues/583
 2017-01-24 09:36:25 +00:00
John Cupitt
9660036216 credit hunter-87 
see https://github.com/jcupitt/libvips/issues/268
 2017-01-22 10:09:40 +00:00
John Cupitt
fa3c92c19b add CLAHE 
vips_hist_local() has a new param, max_slope, which sets the maximum
amount that the local contrast can be boosted by -- CLAHE

see https://github.com/jcupitt/libvips/issues/268

also fix a couple of small range problems

- scale by 255, not 256, to avoid an overflow
- cum hist includes the current value, so sum to <= target, not < target
 2017-01-22 10:05:58 +00:00
John Cupitt
d05018155d adjust notes for coverity changes 2017-01-20 09:16:46 +00:00
John Cupitt
79c21dfcf8 seems to be done! 2017-01-18 14:39:27 +00:00
John Cupitt
0231b512b4 fits isn't quite working still 2017-01-17 14:53:40 +00:00
John Cupitt
c464503510 Merge branch 'master' into invalidate-on-load-error 2017-01-17 13:47:14 +00:00
John Cupitt
fb88d037fc Merge branch 'master' into add-thumbnail-geometry 2017-01-17 11:51:10 +00:00
John Cupitt
6b325145e4 use new hints and prepare everywhere 2017-01-12 14:36:44 +00:00
John Cupitt
c5e675f7db fix --vips-cache-max etc. 
--vips-cache-max, --vips-cache-max-memory and --vips-cache-max-files were not
working and probably hadn't been for a while

vipsthumbnail.c turns off the operation cache, it's not useful for
the same operation repeated across many files
 2017-01-10 14:12:24 +00:00
John Cupitt
2fa3736722 all done, I think 2017-01-06 13:43:43 +00:00
John Cupitt
5d61bd4982 Merge branch 'master' into add-webp-metadata 2017-01-04 16:13:39 +00:00
John Cupitt
c4640b61c7 Merge branch 'glib-logging' 2017-01-04 14:58:11 +00:00
John Cupitt
9581e14dee all done 2017-01-04 14:45:35 +00:00
John Cupitt
b29201595d note fits improvements in changelog 2017-01-04 12:56:04 +00:00
John Cupitt
2be0b97dce switch to g_warning()_/g_info() 
we had vips_warn() and vips_info(), but they are a bit crappy ... switch
to g_warning() and g_info() instead

see https://github.com/jcupitt/libvips/issues/544
 2017-01-03 15:52:27 +00:00
John Cupitt
c31f4ec2d7 add VIPS_SONAME etc. 
helps check ABI and php-vips-ext lock the right library
 2016-12-31 17:58:33 +00:00
John Cupitt
c1ca76f6a2 Merge branch '8.4' 2016-12-09 15:46:02 +00:00
John Cupitt
4f85a5d7cd lower libgsf requirement to 1.14.26 
1.14.16 seems to more or less work, and is the most recent version on
centos

see https://github.com/jcupitt/libvips/issues/528
 2016-12-08 13:54:05 +00:00
John Cupitt
0d9bf6a81e gifload supports n and page-height 2016-11-26 15:07:12 +00:00
John Cupitt
6e968d46f2 magick7 now supports page/n 2016-11-25 18:19:36 +00:00
John Cupitt
6e26e317e0 update magick6 loader 
now supports page/n/page-height
 2016-11-25 14:46:46 +00:00
John Cupitt
25dd60c781 add tests 
all done, I think
 2016-11-23 17:20:04 +00:00
John Cupitt
5a61374bbf Merge branch 'master' into add-tiffload-n-pages 2016-11-22 21:38:31 +00:00
John Cupitt
64d02a7a15 strip read works 
tile next
 2016-11-17 14:50:21 +00:00
John Cupitt
e213a9ded6 remove @fail machinery from openslideload 
since openslide load errors are fatal ... see

bb0a6643f9 (commitcomment-19838911)
 2016-11-16 07:41:31 +00:00
John Cupitt
85be55fe4f add vips_image_get_fields() 
helps bindings (which struglle with vips_image_map()) get a list of
header fields

works from py, but not ruby, I guess gchar** isn't a supported type for
ruby-gnome

see https://github.com/jcupitt/libvips/issues/533
 2016-11-12 16:37:13 +00:00
John Cupitt
bb0a6643f9 move @fail from jpegload into the base load class 
and add fail support to csv and openslide

see https://github.com/jcupitt/libvips/issues/546
 2016-11-12 15:33:35 +00:00
John Cupitt
e72d145ae9 better >4gb detection for zip dzsave 
older libgsfs can't save zip64 and will fail silently for very large
output trees ... improve the slightly sketchy >4gb detection in dzsave

this a a version of the patch in https://github.com/jcupitt/libvips/pull/462
 2016-11-11 16:24:18 +00:00
John Cupitt
4df18c2a33 Merge branch '8.4' 2016-11-11 12:31:18 +00:00
John Cupitt
96ef05a9d1 fix a crash in arg handling on Windows 
we were not updating argc in vips.c after all calls to
g_option_context_parse_strv() on Windows, leading to a crash in some cases

see https://github.com/jcupitt/libvips/issues/553
 2016-11-11 10:14:03 +00:00
John Cupitt
b56b888bf0 add webp metadata write 
untested, but it does compile
 2016-11-08 12:30:02 +00:00
John Cupitt
47222bc1f5 move exif handling out to exif.c 
now used by webpload as well
 2016-11-07 12:20:56 +00:00
John Cupitt
d4b4eb44a3 works! 2016-11-02 11:07:30 +00:00
John Cupitt
a96d851ff2 fix up vipsheader with complex field types 
"-f name" displays a detailed form, "-a" displays a summary of each
field

fix a problem with string fields as well
 2016-11-01 11:51:20 +00:00
John Cupitt
3f1f950bff add vips_image_hasalpha() 2016-10-31 11:14:27 +00:00
John Cupitt
e715c62e27 Merge branch '8.4' 2016-10-28 16:51:43 +01:00
John Cupitt
a7edd235c4 improve compat with ancient glibs 
and fix a tiny threading leak
 2016-10-28 16:25:31 +01:00
John Cupitt
ca7b51fb9e revise header get/set 
rework header.c

- built-in enum fields, like "interpretation" are handled as enums, not
  ints
- vips_image_get_*() functions always convert to the target type if they
  can
- rename "field" to "name" in the docs
- clarify docs
 2016-10-20 12:41:32 +01:00
John Cupitt
75dee18848 Merge branch '8.4' 2016-10-18 14:23:22 +01:00
John Cupitt
d785e56372 fix error detection from DGifCloseFile() 
we were not testing the return from `DGifCloseFile()` against `GIF_ERROR`,
causing spurious error reports

see https://github.com/jcupitt/libvips/issues/541
 2016-10-18 14:09:18 +01:00
John Cupitt
156b0433d5 add dzsave_buffer 
zip only ... see https://github.com/jcupitt/libvips/issues/415
 2016-10-15 19:01:34 +01:00
John Cupitt
c90b8be0b8 add tiffsave_buffer 
add tests

also some cleanups to foreign include files

see https://github.com/jcupitt/libvips/issues/417
 2016-10-15 12:29:14 +01:00
John Cupitt
ded6f17fa8 fix up new buffer.c 
and make getpoint() use the threading system
 2016-10-14 09:00:21 +01:00
John Cupitt
c5c3d48da7 version bump for new cycle 2016-10-13 11:43:46 +01:00
John Cupitt
ccfe4cb215 seems to work? 
needs stress testing still

see https://github.com/jcupitt/libvips/issues/535
 2016-10-10 15:12:12 +01:00
John Cupitt
dff0960e5f fix error message for metadata get 
if the type of the metadata item didn't match theh gtype you were
fetching to, the error message was wrong
 2016-09-30 08:54:46 +01:00
John Cupitt
246089dc82 bump version 2016-09-27 11:23:57 +01:00
John Cupitt
d3cafb3a9f seems to work 
add @centre option for downsampling, see

https://github.com/jcupitt/libvips/issues/504
 2016-09-10 10:31:33 +01:00
John Cupitt
591d4472a9 notes on vips-properties changes 2016-09-08 12:45:50 +01:00
John Cupitt
d54df515b8 add some tests 2016-09-08 10:41:01 +01:00
John Cupitt
7e535f6c42 seems to work 
still needs tests for gm overlap mode
 2016-09-07 10:12:04 +01:00
John Cupitt
57e1423d57 Merge branch 'master' into windows-unicode 2016-09-05 13:12:06 +01:00
John Cupitt
c522dae625 Merge branch 'master' into try-round-to-nearest 2016-09-05 13:07:40 +01:00
John Cupitt
271d8656e9 use round() rather than rint() where appropriate 
rint() rounds to nearest even, rather than nearest ... in some cases,
like geometry transforms, we want strict nearest
 2016-08-20 12:59:41 +01:00
John Cupitt
5376a93866 Merge branch '8.3' 2016-08-19 16:22:09 +01:00
John Cupitt
314042ea9d better gif transparency handling 
we were testing (x == 1), we should have tested (x & 0x1), thanks
diegocsandrim

see https://github.com/jcupitt/libvips/issues/502
 2016-08-19 16:11:45 +01:00
John Cupitt
d89dd8d073 add unicode tiff open on windows 
also fix make dist,
 2016-08-17 10:06:40 +01:00
John Cupitt
1f403a4add first attempt 
seems to all work, test it a bit more

see https://github.com/jcupitt/libvips/issues/491
 2016-08-15 15:45:26 +01:00
John Cupitt
5df5793457 done! 
all tests done, all pass with magick6 and magick7
 2016-08-14 18:39:40 +01:00
John Cupitt
9143bda915 Merge branch 'master' into add-magick7 2016-08-14 10:25:03 +01:00
John Cupitt
933080a265 Merge branch 'master' of github.com:jcupitt/libvips 2016-08-13 16:47:06 +01:00
John Cupitt
866cfd5ce3 rename bootstrap.sh as autogen 
necessary for snapcraft
 2016-08-05 14:52:34 +01:00
John Cupitt
40f01fdb2b Merge branch 'master' into add-magick7 2016-08-04 14:15:46 +01:00
John Cupitt
c658332215 vips_conva() done and working 
remove im_conva() nest, add tests
 2016-08-03 18:29:50 +01:00
John Cupitt
2e8f14c6a5 Merge branch 'master' into rewrite-convf 2016-08-01 15:08:45 +01:00
John Cupitt
b0e3035590 small cleanups to svgz support 2016-08-01 14:28:35 +01:00
John Cupitt
5637971a36 support --strip for pngsave 2016-07-31 10:34:12 +01:00
John Cupitt
b5781a5760 Merge branch '8.3' 2016-07-30 10:57:40 +01:00
John Cupitt
88148318eb fix performance regression 
the extra check on bandfmt in sizeof() in 8.3.2 was causing some performance
problems ... move the check to file read, so we only do it once
per image, not once per pixel or scanline

thanks Lovell!
 2016-07-30 10:51:54 +01:00
John Cupitt
71fb52afa0 Merge branch 'master' into add-magick7 2016-07-27 08:49:39 +01:00
John Cupitt
e2eb1b8c12 better gif loader 
- transparency was broken if image had no extension block
- load image to memory, test for transparency and mono/colour, write 1,
  2, 3, or 4 band image to output, depending on what we found
 2016-07-26 16:19:28 +01:00
John Cupitt
12a32b23f1 Merge branch 'master' into add-magick7 2016-07-25 12:40:43 +01:00
John Cupitt
e939103936 Merge branch 'master' into add-worley 2016-07-24 14:47:33 +01:00
John Cupitt
c469bb3983 perlin sort-of works 2016-07-24 11:46:42 +01:00
John Cupitt
5bbeac7eff Merge branch '8.3' 2016-07-21 07:42:09 +01:00
John Cupitt
3efee94e19 fix possible out of bounds read in tiff2vips 
reading a malformed tiff file from a buffer could trigger out of bounds
read

thanks Matt Richards
 2016-07-21 07:40:33 +01:00
John Cupitt
dac671439c kind-of working 2016-07-19 10:57:21 +01:00
John Cupitt
7cd49e53b2 vips_convasep() done 
starting vips_conva()
 2016-07-10 12:25:22 +01:00
John Cupitt
a5d9cf204c seems to work, needs more testing 2016-07-08 17:56:30 +01:00
John Cupitt
df81a6fe24 almost there 2016-06-30 14:59:20 +01:00
John Cupitt
93a55310d3 compiles 2016-06-23 15:00:26 +01:00
John Cupitt
65105a9442 upsize with something other than nearest 
vips_resize() uses to just use nearest when upsizing, following standard
practice in repro. This is often unfortunate for image processing, where
small nearest upsizes will produce obvious aliasing.

It now picks a VipsInterpolate which corresponds (roughly) to the
selected VipsKernel and uses that with affine for any upsizing.
 2016-06-22 10:33:08 +01:00
John Cupitt
11b136b2df pyvips8 can create new metadata 
previously it tried to lookup the type of the field in set(), now if
OK if there's no field there already
 2016-06-17 11:27:13 +01:00
John Cupitt
f3326c8126 better vips_resize() for cubic/linear/nearest 
vips_resize() used to do most of a downsize with vips_shrink() and the
final 200 - 300% with vips_reduce(). This was correct for lanczos2/3,
but not right for linear/cubic, which need more shrink and less
reduce to avoid aliasing.

This patch makes vips_resize() leave the final 100 - 200% to
vips_reduce() for linear/cubic, and leave everything to reduce for
nearest.
 2016-06-16 09:46:02 +01:00
John Cupitt
a5bef08d4a better reducev multiplication 
more accurate, no slower

add more tests too
 2016-06-15 13:56:19 +01:00
John Cupitt
eb7768ff61 Merge branch 'master' into add-assignment-overloads 2016-06-11 20:15:42 +01:00
John Cupitt
28efdf1695 working! 2016-06-11 17:36:06 +01:00
John Cupitt
8667dd0d18 VImage::ifthenelse() fix 
the prototype was missing =0 on options for scalar constant forms
 2016-06-10 17:34:41 +01:00
John Cupitt
ad56c57830 add implementation for VImage::write() 
oops, it was missing

also, change the return type from void to VImage. This makes chaining
possible, eg.:

   VImage memory = im.write( Viameg::new_memory() );
 2016-06-10 14:22:08 +01:00
John Cupitt
1909b31bd6 vips_image_write() only refs input when it has to 
when you write to a non-partial image, you create a sink ... so
vips_image_write() only needs to ref the input when writing to partials

this change makes it much easier to (for example) combine many images in
bounded space, see for example:

https://gist.github.com/jcupitt/c516325ebef7601b5da610af5619c9b2
 2016-06-10 13:58:01 +01:00
John Cupitt
3ed174e9cb Merge branch 'master' into free-non-worker-buffers 2016-06-09 18:36:41 +01:00
John Cupitt
8cd3d18caf remove is_zip from dzsave 
we can use GSF_IS_OUTFILE_ZIP() instead
 2016-06-08 14:46:45 +01:00
John Cupitt
b90145ca31 free pixel buffers on image close 
We were freeing pixel buffers on thread exit. This was convenient, but
meant that main thread buffers were not freed until program exit. As a
result, long-running programs which created main thread buffers would
slowly fill the operation cache with useless junk, forcing everything else out.

This change also frees pixel buffers on image close. This makes the
cache work much better in long-running programs, and can substantially
reduce memory use.

See https://github.com/jcupitt/libvips/issues/466
 2016-06-06 13:50:25 +01:00
John Cupitt
15878bffca Revert "free main-thread pixel buffers" 
This reverts commit 2a77301033.
 2016-06-06 06:38:18 +01:00
John Cupitt
2a77301033 free main-thread pixel buffers 
threads keep pixel buffers in thread-private storage, and free these
buffers on thread exit ... this means buffers created by the main thread will
only be freed on program exit!

if your program creates any main-thread buffers, these buffers will
eventually fill the operation cache and force everything else out,
making the cache useless

this patch explicitly frees main-thread pixel buffers on image close
 2016-06-05 16:59:07 +01:00
John Cupitt
0faf5395b2 conversion to grey16 could lock 
a typo could cause infinite recursion during conversion
 2016-06-03 16:24:21 +01:00
John Cupitt
c5a4afbe40 support --strip for tiffsave 
stops metadata save
 2016-06-02 13:14:15 +01:00
John Cupitt
7a91eaa583 tiff save converts for jpg in jpg mode 
when jpg compression is on, tiffsave now converts the input image for
jpg save ... previously, it would try to send a tiff-formatted image
(eg. perhaps with an alpha channel, or float data), which would fail

see https://github.com/jcupitt/libvips/issues/449
 2016-05-31 22:04:07 +01:00
John Cupitt
f0521d4b5d all done! 
a few more tests though
 2016-05-27 16:53:25 +01:00
John Cupitt
0c28fc71d6 fix radsave 
oop, suffix was being set ono the base class
 2016-05-24 07:55:30 +01:00
John Cupitt
dbbd2850a1 better max_alpha default 
it used to default to 255, now it sniff the interpretation and defaults to
65535 for RGB16 and GREY16

see https://github.com/jcupitt/libvips/issues/449
 2016-05-23 12:18:39 +01:00
John Cupitt
91aa288a44 break up acinclude.m4 
it's now in a more maintainable set of .m4 files in m4-safe
 2016-05-18 10:41:05 +01:00
John Cupitt
2b71756352 Merge branch '8.3' 2016-05-18 09:30:22 +01:00
John Cupitt
7ec63c4451 more vips image read fixing 
thanks AFL!
 2016-05-18 09:00:30 +01:00
John Cupitt
6a445ea9c8 more vips image read fixing 
thanks AFL!
 2016-05-17 21:58:52 +01:00
John Cupitt
54d8e4808f restore bandfmt after unpremultiply in thumbnail 
vips_unpremultiply() always outputs float. If you save the output of
vipsthumbnail to a format that supports float files, like tiff, it won't
ever get cast back to the source format.

Example:

	$ vipsheader Opera-icon-high-res.png
	Opera-icon-high-res.png: 3056x3325 uchar, 4 bands, srgb, pngload
	$ vipsthumbnail Opera-icon-high-res.png -o x.tif
	$ vipsheader x.tif
	x.tif: 117x128 float, 4 bands, scrgb, tiffload

This change makes it note and restore BandFmt aropund pre/unpremultiply.

See https://github.com/jcupitt/libvips/issues/447
 2016-05-16 13:18:59 +01:00
John Cupitt
db11d3b973 allow nested [] in CLI args 
this now works:

	vips copy x y.dz[suffix=.jpg[Q=90]]
 2016-05-16 11:09:47 +01:00
John Cupitt
70abf4efde merge pdfload range to master 2016-05-15 10:02:46 +01:00
John Cupitt
ffc5279d2f Merge branch 'master' into loadpdf-range 2016-05-15 10:01:27 +01:00
John Cupitt
7f02e843dc add ack for dzsave tile skip 
see https://github.com/jcupitt/libvips/issues/352
 2016-05-15 09:53:37 +01:00
John Cupitt
46f2776d22 fix up changelog order 2016-05-15 09:50:40 +01:00
John Cupitt
72b67d0ec2 Merge branch 'master' into no-blank-tiles 2016-05-15 09:48:21 +01:00
John Cupitt
f18fbe1fa2 add @n option to pdfload 
so you can load many pages at once as a tall strip
 2016-05-12 14:13:50 +01:00
John Cupitt
143593d6a6 comment reformat 2016-05-09 11:07:48 +01:00
John Cupitt
38fe936eee Merge remote-tracking branch 'origin/8.3' 2016-05-08 11:09:28 +01:00
John Cupitt
f7a6a02ee8 fix giflib4 detection 
and a problem in giflib4 error handling
 2016-05-08 11:02:21 +01:00
John Cupitt
1fbae62cf8 seems to work for jpg anyway 
try some tests next
 2016-05-05 20:07:17 +01:00
John Cupitt
48ef215479 tiny fixups for the webp commit 
just small formatting changes, plus an unneeded var

see

	https://github.com/jcupitt/libvips/pull/430
 2016-05-02 09:55:16 +01:00
John Cupitt
02821ae9e3 expose @kernel setting for vips_resize() 
a new optional arg lets you pick the downsizing kernel
 2016-05-01 12:33:49 +01:00
John Cupitt
c2d1de9a26 allow mixed zoom and shrink in resize 
vips_resize() now allows >1 on one axis, <1 on the other ... previously,
although you could have non-square ratios, you couldn't mix zoom and
shrink
 2016-05-01 12:03:13 +01:00
John Cupitt
5e933fe8e9 Merge branch 'master' into no-blank-tiles 2016-04-25 09:54:01 +01:00
John Cupitt
d11a7960b7 add support for giflib5 
gifload.c now works with giflib5, and well as giflib4 ... forced by
ubuntu's switch to giflib5 in 16.04

see https://github.com/jcupitt/libvips/issues/407
 2016-04-25 09:29:25 +01:00
John Cupitt
699ade0877 Merge branch 'master' into no-blank-tiles 2016-04-24 09:59:04 +01:00
John Cupitt
23eaf93867 fix build with graphicsmagick 
GM is still using the old page interface of subimage/subrange, IM has
deprecated that in favour of scene/number_scenes

we were accidentally just supporting the new IM system ... this change
adds support for GM as well, plus a configure test to pick one

see https://github.com/jcupitt/libvips/issues/423
 2016-04-18 15:21:11 +01:00
John Cupitt
f0271f050d note oo stuff 2016-04-18 12:36:55 +01:00