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2158 Commits

Author SHA1 Message Date
John Cupitt
72c103f95a Revert "remove no-alpha webp support" 
This reverts commit d1094847a3.
 2019-06-27 17:27:53 +01:00
John Cupitt
80648c2d2f text autofit could sometimes underfit 
The autofit loop would terminate if either width or height fitted exactly,
but this could happen very early by chance. This patch makes it keep
looping until it finds a dpi which just fits.

See https://github.com/libvips/libvips/issues/1352
 2019-06-27 17:19:53 +01:00
John Cupitt
d1094847a3 remove no-alpha webp support 
We used to try to spot webp images with no alpha and load them as plain
RGB, but it turns out this is difficult to do reliably, especially
for animated images.

This patch simply removes support, so all webp images now load as RGBA.

See https://github.com/libvips/libvips/issues/1351
 2019-06-27 16:37:11 +01:00
John Cupitt
2aef873fcd add vips_image_get/set_array_int() 2019-06-20 11:32:47 +01:00
John Cupitt
8a98bea063 fix vipsthumbnail for pyr tiff files 
thumbnail was not testing pyramidal tiff images for pyramidness correctly.

see https://github.com/libvips/libvips/issues/1297
 2019-06-19 17:56:09 +01:00
John Cupitt
75e69cc1e5 disable Orc if CET is on 
If we are building with -fcf-protection (run-time checking of
indirect jumps) then Orc won't work. Make sure it's off.

Orc may support -fcf-protection in the future, but does not in June 2019.

https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html#index-fcf-protection
https://gitlab.freedesktop.org/gstreamer/orc/issues/17

see https://github.com/libvips/libvips/issues/1006#issuecomment-501802550
 2019-06-14 14:22:00 +01:00
John Cupitt
37a3a6322c remove 256 band limit from arithmetic.c 
there was a fixed-size array in vips__bandup()

see https://github.com/libvips/libvips/issues/1335
 2019-06-12 09:22:30 +01:00
John Cupitt
ad98222073 better behaviour for vips_region_fetch() 
we weren't clipping the fetch area against region valid, so in some
cases we could return many more pixels than expected

see https://github.com/libvips/pyvips/issues/103
 2019-06-09 20:38:13 +01:00
John Cupitt
bb75535151 much faster ismagick 
We used to Ping files to see if IM would load them, but this can be
extremely slow for file formats like ARW.

Instead, use GetImageMagick() ... it just checks the magic number.
 2019-06-08 16:47:40 +01:00
John Cupitt
eb6c803481 istiff tests first dir rather than magic number 
We were testing for TIFF by checking the magic number at the head of the
file. However, formats like ARW are TIFF-like without being TIFF, and
will not load with tiffload.

Instead, try reading the whole of the first directory. This is enough to
stop tiffload trying to load files where it will simply fail
immediately, and make libvips fall back to eg. imagemagick.

see https://github.com/libvips/libvips/issues/1304
 2019-06-07 17:52:13 +01:00
John Cupitt
dc16f1253a fix a memleak in tiff pyr to memory 
we were not freeing layers other than the top layer
 2019-06-06 10:20:14 +01:00
John Cupitt
5657099223 fix composite for some combinations of blend modes 
composite could get mixed up blend modes if:

- many images being composited
- some small and positioned with x/y
- at least one unskippable blend mode

phew!
 2019-06-04 15:24:54 +01:00
John Cupitt
bd8a6980f5 more consistent behaviour for multi-page load 
Some loaders were setting page-height even when the user was loading a
single page triggering unexpected multi-page behaviour from later
savers.

New rule: only set page-height when loading more than one page.

See https://github.com/libvips/libvips/issues/1318
 2019-05-29 10:10:28 +01:00
John Cupitt
02bdb8b96c better error message for "unsupported colorspace" 
we just printed the enum number before
 2019-05-24 17:42:10 +01:00
John Cupitt
5855321638 improve realpath() compat on older libc 
older libc didn't allow a NULL for the second param
 2019-05-24 15:24:18 +01:00
John Cupitt
394f9baa5e deprecate webpload @shrink, use @scale instead 
We need a fractional scale for thumbnail on webp to work well. @shrink
still works, but @scale overrides it.
 2019-04-30 18:29:16 +01:00
John Cupitt
3245dd301b Merge branch 'master' into szi-associated 2019-04-25 17:25:32 +01:00
John Cupitt
0102a10b49 seems to work 2019-04-24 17:04:31 +01:00
John Cupitt
27aae32ff6 oops 2019-04-22 11:34:45 +01:00
John Cupitt
c98da89ac9 Merge branch '8.7' 2019-04-19 12:47:35 +01:00
John Cupitt
bae484ba2c remove old c++ and py interfaces 
Instead, use the new(er) vips8 C++ interface, and the new(er) python
interface in pypi.

https://pypi.org/project/pyvips
 2019-04-12 16:27:28 +01:00
John Cupitt
080ab87d37 Merge branch 'master' into HEAD 2019-04-11 16:18:39 +01:00
John Cupitt
91d0e7e3d0 move kill mechanism to public API 
the vips_image_set_kill() system was internal. Move it to the public
API.

See eg.:

https://github.com/kleisauke/net-vips/issues/31
 2019-04-06 16:53:42 +01:00
John Cupitt
1f100c0c42 better buffer sizing in tiff reader 
We were not setting JPEGCOLORMODE_RGB early enough, so buffers could be
undersized in some circumstances.

Thanks omira-sch.
 2019-03-31 12:55:30 +01:00
John Cupitt
da15285bf9 add support for justified text 
And set xoffset/yoffset to the top line of text output.

https://github.com/libvips/libvips/issues/1258
 2019-03-16 11:53:09 +00:00
John Cupitt
a663a1bb1c add vips_region_fetch() etc. 
to help ML applications ... they let us generate lots of small rectangular
areas of images very quickly
 2019-03-12 16:00:24 +00:00
John Cupitt
a05a2cb52d mild refactoring of threadpool 
clean up and simplify after https://github.com/libvips/libvips/pull/1240
 2019-02-27 14:23:43 +00:00
John Cupitt
793cbeeaa7 add note abut region_shrink to changes 
somehow got dropped
 2019-02-24 20:13:18 +00:00
John Cupitt
27195cc92c add vips_foreign_get_suffixes() 
Add vips_foreign_get_suffixes(), get an array of all the filename suffixes that
libvips recognises.

See https://github.com/libvips/ruby-vips/issues/186
 2019-02-23 13:50:10 +00:00
John Cupitt
1a83605238 Merge branch 'add-heifload' 2019-02-17 17:11:14 +00:00
John Cupitt
044abe7986 fix some tilecache issues too 2019-02-16 15:32:45 +00:00
John Cupitt
bfa1f22520 works! 
tuned a bit too
 2019-02-14 15:22:51 +00:00
John Cupitt
931b661d2b fix up and test with im6/im7/gm 
seems to work! phew
 2019-02-07 18:35:51 +00:00
John Cupitt
8d5af9fe8a add xmp/ipct/icc etc. to magickload 
ImageMagick supports binary metadata with `ResetImageProfileIterator()`
etc.

Implementing support gives us xmp / ipct / icc support, plus perhaps
some others.
 2019-02-04 17:54:57 +00:00
John Cupitt
f23d0fd754 note new option_string param in changelog 2019-02-03 12:27:58 +00:00
John Cupitt
308c85c004 add support for stored heif thumbnails 2019-01-30 16:19:11 +00:00
John Cupitt
cae7838f86 heifsave seems to work 2019-01-29 16:40:34 +00:00
John Cupitt
33fd2a48f0 basic load works 
no metadata, no options
 2019-01-20 11:33:12 +00:00
John Cupitt
849d24472e revise changelog 
had Klies' magickload fix in there twice
 2019-01-18 12:52:04 +00:00
John Cupitt
dcba364efa Merge branch 'zero-mem-on-malloc' 2019-01-18 11:31:11 +00:00
John Cupitt
00622428bd zero memory on malloc 
to prevent write of uninit memory under some error conditions

thanks Balint
 2019-01-18 10:10:43 +00:00
John Cupitt
00982f6297 add changelog notes 
and small formatting issues
 2019-01-15 09:36:31 +00:00
John Cupitt
bcc76c6edb Merge branch 'master' into tiff-pyr-stop-at-1-pixel 2019-01-12 15:48:17 +00:00
John Cupitt
f768029298 make the savers use profile_load 
tiff, jpeg and png save all use profile_load to attach profiles
 2019-01-11 06:30:06 +00:00
John Cupitt
28999aa5b6 add vips_profile_load() 
and use it in icc_transform
 2019-01-10 22:48:21 +00:00
John Cupitt
960324b08a Merge branch 'master' into add-icc-fallbacks 2019-01-10 15:48:37 +00:00
John Cupitt
5bc342b9b2 revise changelog in magickload fix 2019-01-08 09:05:39 +00:00
John Cupitt
a293da4b5a Merge branch '8.7' 2019-01-04 10:36:59 +00:00
John Cupitt
63c6c7ae30 fix small magicksave error 
copy-paste fail meant that IM exceptions were not inherited correctly

see 1619c8b1a1 (commitcomment-31838043)
 2019-01-04 10:34:30 +00:00
John Cupitt
87062c4a4f Merge branch '8.7' 2019-01-04 09:19:04 +00:00
John Cupitt
1619c8b1a1 fix memleak in magick6load 
IM ExceptionInfo were not being freed correctly. This patch
adds a small wrapper function and uses it to allocate and free all IM
exception objects.

Tested with im 6.9 and gm 1.3.

See:

https://github.com/libvips/lua-vips/issues/24

https://github.com/libvips/libvips/issues/1203
 2019-01-04 08:38:58 +00:00
John Cupitt
b8a158b69b seems to work 
added some more consts as well
 2019-01-03 13:34:13 +00:00
John Cupitt
020ff88f6a Merge branch 'master' into dzsave-skip-blanks 2019-01-02 11:00:42 +00:00
John Cupitt
f611845698 Merge branch 'master' into add-CMYK2XYZ 2018-12-31 14:02:51 +00:00
John Cupitt
6c72ca45b7 Merge branch '8.7' 2018-12-29 22:56:58 +00:00
John Cupitt
9d66420ad5 round to nearest in log scale 
we were doing round to nearest in linear mode, but not log

see https://github.com/libvips/build-win64-mxe/issues/3
 2018-12-29 20:19:38 +00:00
John Cupitt
c5d0ca8300 add cmyk2xyz and back 
seems to work, still to do:

- tests
- try:

```
$ vipsthumbnail NordicsLIQUOR-SFBag_300_cmyk.JPG

(vipsthumbnail:7868): VIPS-WARNING **: 16:53:17.166: profile incompatible with image
```

see https://github.com/libvips/libvips/issues/1186
 2018-12-27 17:35:35 +00:00
John Cupitt
d35343f817 stop making tiff pyr if axis drops to 1 
TIFF pyramids of images with a very extreme aspect raio could see layer
width or height drop to 0 before the image fitted in a single tile. This
change stops pyramid creation when width or height drop to 1.

See https://github.com/libvips/libvips/issues/1188
 2018-12-21 14:47:28 +00:00
John Cupitt
51dbf607dd add skip-blanks option to dzsave 
Skip-blanks was a feature of google layout. This patch makes it into an
option you can control which defaults on in gm mode.

See https://github.com/libvips/libvips/issues/1185
 2018-12-19 14:52:33 +00:00
John Cupitt
1ee5b13205 Merge branch '8.7' 2018-12-17 13:21:28 +00:00
John Cupitt
582b224125 oops revert version bump 2018-12-17 13:20:14 +00:00
John Cupitt
962cab2d0f Merge branch '8.7' 2018-12-17 13:18:58 +00:00
John Cupitt
db4fe60405 fix mapim offsets 
pixels were not being offset by the stencil origin, so interpolators
like bicubic could fail

thanks @erdmann

https://github.com/libvips/libvips/issues/1180
 2018-12-17 12:42:34 +00:00
John Cupitt
6bc564a1e1 turn on smalltile 
2D locality helps a lot with many subimages
 2018-12-07 16:43:44 +00:00
John Cupitt
58776970ec Merge branch 'master' into revise-composite 2018-12-07 14:31:56 +00:00
John Cupitt
0dccfc87b6 Merge branch '8.7' 2018-12-07 14:30:00 +00:00
John Cupitt
da31d0f31a fix autofit loop on non-scaleable fonts 
see https://github.com/libvips/libvips/issues/1178
 2018-12-07 12:57:44 +00:00
John Cupitt
7b19ad8dc1 composite subimage positioning almost done 
--x fails though? odd

vips composite2 Gugg_coloured.jpg PNG_transparency.png x.jpg over --x 600 --y 100

--x causes the dice to clip, but not translate
 2018-12-06 18:28:55 +00:00
John Cupitt
d550016610 Merge branch 'master' into revise-composite 2018-12-06 16:05:25 +00:00
John Cupitt
5fa4ae08da Merge branch '8.7' 2018-12-05 17:37:25 +00:00
John Cupitt
ac4897abee Fix up vips_text() 
Fixes two issues:

1. vips_text() in autofit mode could set the wrong DPI, since it set the
DPI in its own copy of the variable, but did not do a final update on
the DPI setting that FT uses for rendering.

2. vips_text() in autofit mode allocated a new context each time, rather
than reusing the context for that call. This caused a small memory leak.

See https://github.com/libvips/libvips/issues/1174
 2018-12-05 14:24:26 +00:00
John Cupitt
2c26c23163 composite in scanlines, not pixels 
try compositing a scanline at a time, should improve cache locality for
deep image stacks

seems to work, needs benchmarking
 2018-11-27 18:27:38 +00:00
John Cupitt
0669cf2a23 Merge branch 'master' into add-webp-animated 2018-11-23 17:41:09 +00:00
John Cupitt
cff4af34ca add vips_image_set_blob_copy() 
and use it where we can
 2018-11-23 16:27:39 +00:00
John Cupitt
d4815e8b7e more info output for tmpfile open 
to help diagnose problems
 2018-11-21 14:26:52 +00:00
John Cupitt
6b9d89b103 add pyr tiff shrink-on-load for thumbnail 2018-11-16 18:00:25 +00:00
John Cupitt
26d0e312c6 add bandand/or/eor to the cpp binding 
oops, they had been dropped

thanks clcaalu

see https://github.com/libvips/libvips/issues/1165
 2018-11-16 13:10:22 +00:00
John Cupitt
07d58f81b3 fix cast on uint images 
we could get sign and overflow mixed up for casts on uint images

see https://github.com/libvips/nip2/issues/74
 2018-11-14 17:07:49 +00:00
John Cupitt
3e070cbcdf Merge branch 'master' into add-webp-animated 2018-11-05 16:26:45 +00:00
John Cupitt
17c9856e38 add n/page support for webp read 2018-11-05 16:21:21 +00:00
John Cupitt
d6c7d86e12 Merge branch '8.7' 2018-11-05 10:41:46 +00:00
John Cupitt
0bea76d364 fix temp file open 
was not auto-deleteing on windows, needs a fallback on linux

see https://github.com/libvips/libvips/pull/1155
 2018-11-05 10:40:51 +00:00
John Cupitt
7c6f417e68 fix some typos ... it works! 
need to add support for delay and loop still
 2018-10-31 16:52:09 +00:00
John Cupitt
22ba9106b5 implement shrink-on-load for openslide thumbs 
makes vipsthumbnail much quicker on openslide images, obviously

see https://github.com/libvips/libvips/issues/1149
 2018-10-31 14:07:13 +00:00
John Cupitt
0b050f4046 deprecate thumbnail auto_rotate, add no_rotate 
the auto_rotate option of thumbnail was default TRUE which made it
useless from the CLI, since GOption only allows --switch, not
--switch=false

deprecate auto_rotate, add no_rotate, but allow either to be used

see https://github.com/libvips/libvips/issues/1146
 2018-10-31 12:30:37 +00:00
John Cupitt
6be70e6799 add xmp load/save for png 
plus a test
 2018-10-06 11:54:27 +01:00
John Cupitt
703498aa81 Merge branch '8.7' 2018-10-01 21:23:48 +01:00
John Cupitt
0fea113bbf fix build on older glibs 
we were using g_str_to_ascii(), but it was only added in glib 2.40

see https://github.com/libvips/libvips/issues/1117
 2018-10-01 20:15:34 +01:00
John Cupitt
9ac5a449f2 add low/high to smartcrop 
smartcrop attention had a centre setting, but not low or high

see https://github.com/libvips/libvips/issues/1089
 2018-09-22 14:47:40 +01:00
John Cupitt
b552dd0503 version bump to get ready for the vips 8.8 cycle 2018-09-21 15:10:39 +01:00
John Cupitt
f3de6a9521 update function list in docs 
thanks janko-m

see https://github.com/jcupitt/libvips/issues/1097
 2018-09-20 08:26:51 +01:00
Kleis Auke Wolthuizen
b5b756b817 Add vips_object_get_args 
Handy for language bindings.
 2018-08-19 22:42:26 +02:00
John Cupitt
f4250ab7ab scale openexr alpha up 
scale alpha up to 0 - 255 to match the rest of libvips
 2018-08-19 10:53:54 +01:00
John Cupitt
643e7c0ea2 mapim fix for strange float values 
mapim could fail for float index images outside the int range

minor speedup too
 2018-08-12 17:10:23 +01:00
John Cupitt
0b3565c04d update radiance load from upstream 
thanks Greg Ward
 2018-08-03 18:31:31 +01:00
John Cupitt
e89dac20bb add sniffing framework to magickload 
though it only spots ICO for now

see https://github.com/jcupitt/pyvips/issues/39
 2018-07-24 17:38:36 +01:00
John Cupitt
72f589764a remove the @format param to magickload 2018-07-24 17:03:38 +01:00
John Cupitt
2d94fe732a escape ASCII control chars in xml 
stops some XML parse errors on corrupt metadata

see https://github.com/jcupitt/libvips/issues/1039
 2018-07-23 14:55:37 +01:00
John Cupitt
3d5b0b814f merge in test suite 2018-07-20 13:58:27 +01:00
John Cupitt
3201b4373d Merge branch 'master' into add-nifti-support 2018-07-20 13:57:51 +01:00
John Cupitt
d03416d386 works! 
just needs some tests

could be faster too
 2018-07-19 17:45:54 +01:00
John Cupitt
d06c2fee22 use exif_tag_get_name_in_ifd() everywhere 
exif tag names change with the ids they appear in, so you must always
use exif_tag_get_name_in_ifd(), not exif_tag_get_name()

see: https://github.com/jcupitt/libvips/pull/1030
 2018-07-09 09:35:39 +01:00
John Cupitt
d510807e90 vmoe the test suite back into libvips 2018-07-06 15:43:20 +01:00
John Cupitt
3a9adbcea9 seems to work 
could probably add some more fields
 2018-07-03 16:36:39 +01:00
John Cupitt
35b4a1a3b5 fix mem leak in pngsave 
and some reformatting and changelog notes
 2018-06-20 14:20:22 +01:00
John Cupitt
a373d2c876 add changelog notes for region_shrink 2018-06-13 17:36:36 +01:00
John Cupitt
539cc0616c Merge branch '8.6' 2018-06-13 16:24:20 +01:00
John Cupitt
e6edcfe20d improve accuracy of vector path 2018-06-13 16:23:21 +01:00
John Cupitt
3b1e3e1841 add Mitchell kernel 
see https://github.com/jcupitt/libvips/issues/966
 2018-06-12 12:55:10 +01:00
John Cupitt
cc29a13cc7 revise composite position code slightly 
- move x/y into composite and out of composite base, have separate x/y int
params for composite2
- upsize later for a small speed improvement
- doc comment
- note in changelog

see https://github.com/jcupitt/libvips/pull/934
 2018-06-11 17:04:29 +01:00
John Cupitt
0e3cac1a72 make cpp overloads const 
all overloads are declared const now, where possible

also revised cpp examples and ran them to check

see https://github.com/jcupitt/libvips/issues/983
 2018-06-11 15:24:11 +01:00
John Cupitt
ca6410e1a6 make members and getters "const" in cpp api 
eg. VImage::width() is now

	int VImage::width() const;

ie. it does not alter the image objects. In factr we can mark almost all
members const.

see https://github.com/jcupitt/libvips/issues/983
 2018-06-11 14:30:17 +01:00
John Cupitt
87b3f17846 vips7 API defaults off 2018-06-11 12:44:28 +01:00
John Cupitt
fb64d3607a add @background option to pdfload 
Add a "background" option to pdfload to help support PDFs with a
transparent background. For example:

	vips copy transparent.pdf[background=0] x.png

see https://github.com/jcupitt/libvips/issues/995
 2018-06-08 10:28:00 +01:00
John Cupitt
5ec605c98c Merge branch '8.6' 2018-06-01 23:05:16 +01:00
John Cupitt
a3394dc756 fix webp metadata save with webpmux 
see https://github.com/jcupitt/libvips/pull/989
 2018-06-01 23:01:33 +01:00
John Cupitt
e9aaedc60a fix some compiler warnings 
from the msvc patch
 2018-06-01 19:44:43 +01:00
John Cupitt
86a1a0a7e2 Merge branch '8.6' 2018-05-29 19:30:46 +01:00
John Cupitt
7e95ae514d don't use ping in magickload 
too unreliable, sadly
 2018-05-29 19:29:11 +01:00
John Cupitt
0486218ff5 don't use Ping in magickload 
it's too unreliable :-( we are forced to read every time
 2018-05-29 17:20:46 +01:00
John Cupitt
d251b37d92 add vips_argument_get_id() 
We had a global we incremented to allocate property ids, but of course that
won't work with DLLs. Instead, add vips_argument_get_id() and call that to
allocate new prop ids.

See:

https://github.com/jcupitt/libvips/issues/985
 2018-05-29 16:49:20 +01:00
John Cupitt
4058312aee fix a TGA ping crash 
see https://github.com/jcupitt/libvips/issues/980
 2018-05-25 16:40:50 +01:00
John Cupitt
73a55e0322 update ChangeLog 2018-05-25 16:06:05 +01:00
John Cupitt
b085908558 remove vips7 stuff from API 
You must now include vips7 support explicitly with

	#include <vips/vips7compat.h>

in your code just after including `vips.h`.

The old vips7 names, such as `Rect`, were starting to cause problems
with other packages like opencv.
 2018-05-16 15:08:21 +01:00
John Cupitt
fd7b04fb9d Merge branch '8.6' 2018-05-14 18:10:13 +01:00
John Cupitt
5b132ccbdc note new config test in changelog 2018-05-14 17:19:06 +01:00
John Cupitt
e496df598b working! 2018-05-01 15:50:48 +01:00
John Cupitt
4d683559aa add a fontfile option to text 
use @fontfile to give a font to load ... note that this just loads the
font, you'll need to set it with @font as well

see https://github.com/jcupitt/libvips/issues/950
 2018-04-26 21:03:40 +01:00
John Cupitt
da6f4fd043 add n-pages metadata item 
tiff, magick and pdf load now attach an n-pages metadata item recording
the number of pages in the orginal file

see https://github.com/jcupitt/libvips/issues/953
 2018-04-26 08:55:31 +01:00
John Cupitt
4f22e8d1dc add jpeg-chroma-subsample to jpegload 
The jpeg loader now sets the field jpeg-chroma-subsample to record
chroma subsample.

See https://github.com/jcupitt/libvips/issues/954
 2018-04-25 16:04:20 +01:00
John Cupitt
c410dc2db8 add format option to magickload 
Some magick coders (eg. ICO) don't sniff the filetype from the data, so
when you try to load from a string, imagemagick is unable to pick the
right decode path.

Add a @format option so callers can hint the filetype.

see https://github.com/jcupitt/pyvips/issues/39
 2018-04-24 15:06:52 +01:00
John Cupitt
c0569d25bf final fixups 
- add buffer load
- test under valgrind
- code sharing with the poppler pdf loader
 2018-04-11 18:53:38 +01:00
John Cupitt
5b55dd8ed4 Merge branch '8.6' 2018-04-11 09:38:59 +01:00
John Cupitt
d1dd41a21f strict round down on jpeg shrink 
libjpeg rounds up on shrink-on-load. In some cases this can leave a dark
line along the right and bottom edge, since it only contains (for
example) 1/4 of a pixel of data.

This change adds a crop after jpeg load so that only complete pixels are
output.

See https://github.com/lovell/sharp/issues/1185
 2018-04-10 15:18:18 +01:00
John Cupitt
15abbbe986 set "interlaced" for jpg and png 
set "interlaced" for interlaced png and jpg images
 2018-04-09 17:14:38 +01:00
John Cupitt
06802e4110 use O_TMPFILE, if available 
If O_TNMPFILE is available, use it. This is a linux extension that
creates an unlinked file, so it'll be closed by the system when the last
associated fd is closed.

see https://github.com/jcupitt/libvips/pull/930
 2018-04-09 13:27:57 +01:00
John Cupitt
f3842dcc4b update cpp example 
thanks fangqiao

see https://github.com/jcupitt/libvips/issues/932
 2018-04-08 11:44:15 +01:00
John Cupitt
5f3bcd88ae Merge branch '8.6' 2018-04-04 17:11:16 +01:00
John Cupitt
632bce3c78 reduce stack use for radsave 
fixes a crash on very low stack libcs like musl
 2018-04-04 16:25:35 +01:00
John Cupitt
aebb8af803 create funcs always make MULTIBAND 
Before, they could make B_W for one-band output. This caused problems
with (for example) two black image bandjoined: the second band then
looked like an alpha to hasalpha() and enabled premultiply/unpremultiply
for operations like affine.

Now, it's always MULTIBAND. This is the generic multiband image type, so
you don't get any unexpected alpha handling.
 2018-04-04 09:22:57 +01:00
John Cupitt
0dd6b095aa more conservative hasalpha 
The result of hasalpha is used to turn on things like
premultiplication, so we should be rather conservative
about when we signal this. We don't want to premultiply
things that should not be premultiplied.

Check Type as well as bands.

See: https://github.com/jcupitt/libvips/issues/918
 2018-04-03 14:36:43 +01:00
John Cupitt
e686614f2c drop incompatible profiles from save 
libpng has started throwing hard errors if the profile does not match
the image -- this can happen all the time with perofiles inherited from
images that have been processed.

Test profiles before save and drop them (with a warning) if they are
incompatible with the image.
 2018-04-01 10:32:48 +01:00
John Cupitt
5176b4a17e better header sniffing for small files 
vips__get_bytes() used to fail if the file was too small for the
allocated buffer, which was a problem for svg, since files can be extremely
small.

This change makes vips__get_bytes() return the number of bytes read, so
the is_a testers can work on files smaller than the max header size.
 2018-03-22 12:08:39 +00:00
John Cupitt
5a1ab5968b move svg_ia_a into the base class 
feels a bit more logical
 2018-03-22 10:43:01 +00:00
John Cupitt
754a1e5419 Merge branch 'master' into add-canny 2018-03-14 14:18:39 +00:00
John Cupitt
206f158a77 Merge branch '8.6' 2018-03-12 18:12:56 +00:00
John Cupitt
878c77a035 better handling of some fonts 
fonts with very large overlapping edges copuld clip in `text`, see
https://stackoverflow.com/a/49169747/894763
 2018-03-12 18:11:25 +00:00
John Cupitt
08dcf29b10 add vips_rotate() 
vips_similarity() was a little hatrd to discover, so add vips_rotate()
as a more obvious name for it
 2018-03-10 18:45:39 +00:00
John Cupitt
5834779ac6 Merge branch 'master' into add-canny 2018-03-10 15:13:49 +00:00
John Cupitt
0a05dd4304 Merge branch '8.6' 2018-03-09 16:37:10 +00:00
John Cupitt
29e05dabaf icc_import attaches the input profile if used 
icc_import can take a fallback input profile in case the embedded one is
broken or missing. If we use the fallback profile, this change attaches
it to the output image.

This means that icc_import will always output an image with the icc
profile that was used to import it. This helps to make the behaviour of
`thumbnail` more consistent.

See https://github.com/jcupitt/libvips/issues/152
 2018-03-08 13:11:54 +00:00
John Cupitt
6e0e31a534 Merge branch '8.6' into add-canny 2018-03-05 15:21:30 +00:00
John Cupitt
6fae79b60d Merge branch '8.6' 2018-03-05 15:09:08 +00:00
John Cupitt
20d840e6da fix a crash with delayed load 
If a delayed load failed, it could leave the pipeline only half-set up.
Sebsequent threads could then segv.

Set a load-has-failed flag and test before generate.

See https://github.com/jcupitt/libvips/issues/893
 2018-03-05 14:42:09 +00:00
John Cupitt
7f5b0b94c3 Merge branch '8.6' into add-canny 2018-03-04 18:45:59 +00:00
John Cupitt
881a10380e Merge branch '8.6' 2018-03-04 18:45:51 +00:00
John Cupitt
eefb2dad98 improve rounding in convi intize 
We were rounding up with ceil() when intize-ing convolution masks.
However, the vector path has a true range of (1.0, -1.0], so a mask with
1.0 as the max (for example) was actually triggering the overflow detector
and falling back to the C path.

Round up with ceil(x + 1) instead, so 1.0 (for example) will be mapped
to 0.5 and won't overflow.
 2018-03-04 18:30:25 +00:00
John Cupitt
bca2418d9a Merge branch 'master' into add-canny 2018-03-04 15:31:19 +00:00
John Cupitt
e7a5a8af4a Merge branch '8.6' 2018-03-04 15:31:08 +00:00
John Cupitt
6cff74b602 vips_image_write() could crash if called twice 
two writes in a row could trigger a crash in some circumstances, thanks
@dirceupj

see https://github.com/jcupitt/ruby-vips/issues/156
 2018-03-04 15:14:06 +00:00
John Cupitt
4a59fa652c make vips_sobel() 
cut out of vips_canny()
 2018-02-26 18:33:20 +00:00
John Cupitt
a9b4aeb13a Merge branch '8.6' 2018-02-21 19:01:43 +00:00
John Cupitt
bbe42e13fa version bump 2018-02-12 12:39:53 +00:00
John Cupitt
ce1f236c4d another 2x faster on hough_line 2018-02-02 09:12:31 +00:00
John Cupitt
78db92e60e better hough_line 
2x faster, better parameter space, but breaks compat :( sorry
 2018-02-01 20:41:14 +00:00
John Cupitt
5a4b4e196d allow remove thumbnail from exif 
if the user has removed (or set to NULL) the "jpeg-thumbnail-data" tag,
remove it from the image EXIF on save

see https://github.com/jcupitt/ruby-vips/issues/147
 2018-02-01 16:15:02 +00:00
John Cupitt
749f4a902a Merge branch '8.6' 2018-01-31 20:47:01 +00:00
John Cupitt
e8958cb8ae improve changelog 2018-01-31 20:45:14 +00:00
John Cupitt
01eed391ab add sync locks to vips_sink() 
vips_sink() used to just fire off threads willy nilly -- this could
cause problems with sequential images if a worker fell too far behind
the pack

copy over the area locking mechanism from vips_sink_memory(): new
threads are now stalled if an old thread has not finished
 2018-01-31 16:25:06 +00:00
John Cupitt
421f659d33 allow 1 mode in composite 
reused for all joins

see https://github.com/jcupitt/pyvips/issues/30
 2018-01-30 10:12:03 +00:00
John Cupitt
5fd2ecf81d remove limit on n image in composite 
composite was limited to a max of 64 images ... remove the limit

see https://github.com/jcupitt/pyvips/issues/30
 2018-01-30 09:48:34 +00:00
John Cupitt
4865141afa szi save will write associated images 
if they have been attached by openslide load
 2018-01-28 16:39:13 +00:00
John Cupitt
28391dbfc7 option to attach associated images as metadata 
you now see:

```
$ vipsheader -a CMU-1.svs[attach_associated] | grep ass
openslide.associated.label: 387x463 uchar, 4 bands, rgb
openslide.associated.macro: 1280x431 uchar, 4 bands, rgb
openslide.associated.thumbnail: 1024x732 uchar, 4 bands, rgb
slide-associated-images: label, macro, thumbnail
```
 2018-01-27 16:43:58 +00:00
John Cupitt
de2e3e3299 add vips_image_(get|set)_image() 
so images can have other images as metadata
 2018-01-27 14:49:33 +00:00
John Cupitt
21e1e68771 write scan-properties.xml to szi 
see https://github.com/jcupitt/libvips/issues/853
 2018-01-26 17:20:58 +00:00
John Cupitt
c46f4b15e0 dzsave to szi sets extension correctly 
see https://github.com/jcupitt/libvips/issues/852
 2018-01-26 15:36:43 +00:00
John Cupitt
97a4ed2ca9 fix a c++ warning 
see https://github.com/jcupitt/libvips/pull/864
 2018-01-26 07:56:43 +00:00
John Cupitt
39406877a2 Merge branch '8.6' 2018-01-12 17:23:24 +00:00
John Cupitt
94daa18884 fix read of plane-separate, large-strip tiff 
TIFFReadScanline() is too fiddly to use on plane-separate, large-strip
images ... ban it!

see https://github.com/jcupitt/libvips/issues/855
 2018-01-12 17:04:47 +00:00
John Cupitt
18f530c724 Merge branch '8.6' 2018-01-12 12:02:41 +00:00
John Cupitt
24c07cfde2 revert an accidental ABI break 
the new window manager code in 8.6.1 changed the prototype of an internal
function which was visible in the public API

this patch renames the function, adds it to an internal header instead,
and adds a stub for the old prototype

see https://github.com/jcupitt/libvips/issues/854
 2018-01-12 11:56:17 +00:00
John Cupitt
925667f8d3 Merge branch '8.6' 2018-01-05 16:29:56 +00:00
John Cupitt
1b89d62eb5 fix a race associated with sink_screen 
sink_screen was not keeping a ref to its input, so in rare conditions
it could try to make a region on a dead image
 2018-01-05 16:27:44 +00:00
John Cupitt
68e0067840 note rgb->g improvement 2018-01-03 08:34:15 +00:00
John Cupitt
4c2434ab67 fix memleak in dzsave 
tree elements were not being freed, thanks lovell

see https://github.com/jcupitt/libvips/issues/837
 2018-01-01 11:40:04 +00:00
John Cupitt
39ab05469f Merge branch '8.6' 2017-12-31 12:57:57 +00:00
John Cupitt
9febc3ac3e seq could be set on small random images 
images under the disc threshold opened in random access mode from
sequential loaders would have the seq tag set on them, causing
performance problems with vips_resize()

see https://github.com/jcupitt/libvips/issues/840
 2017-12-31 12:56:11 +00:00
John Cupitt
a128149009 Merge branch '8.6' 2017-12-31 10:39:36 +00:00
John Cupitt
77287a938f fix misspelling of IPTC as IPCT 
the letters have been accidentally swapped for years

add a compat macro so older code still works
 2017-12-31 10:23:27 +00:00
John Cupitt
e12df167e6 Merge branch 'magicksave' of https://github.com/dlemstra/libvips into dlemstra-magicksave 2017-12-23 12:39:50 +00:00
John Cupitt
eea8b61f3f tiny cleanup 
make the code for error during jpeg buffer write a little cleaner --
rather than calling the jpeg term method ourselves, have a separate
destroy function for the write buffer
 2017-12-19 08:56:51 +00:00
John Cupitt
424b359d33 bump wrapper script version 
and add a test too

see https://github.com/jcupitt/libvips/issues/834
 2017-12-17 10:50:57 +00:00
John Cupitt
19e2e2e208 add credit to changelog 2017-12-16 10:01:04 +00:00
John Cupitt
f4f9667406 remove the 64 image limit on bandary 
any number of input images now

see https://github.com/jcupitt/libvips/issues/822
 2017-12-15 14:21:31 +00:00
John Cupitt
3c0a2e4837 fix window cycling 
we were repeatedly free-ing and new-ing input mmap windows ... this made
things like zoom out on large images in nip2 much slower than they
needed to be
 2017-12-10 17:37:07 +00:00
John Cupitt
e9b7231ac0 add "extend" option to affine 
so for upsizing with displacement (like resize) we can prevent dark
edges on bright images

see

https://github.com/jcupitt/php-vips/issues/61
 2017-12-07 14:51:07 +00:00
John Cupitt
60bd5f6512 add composite2 to notes 2017-12-01 13:37:15 +00:00
John Cupitt
13a693c8bc Merge branch 'master' into add-extra-dzsave-tiles 2017-12-01 13:33:54 +00:00
John Cupitt
9c8790b40a setting EXIF data blocks sets other tags too 
calling vips_image_set() to set the EXIF data block VIPS_META_EXIF_NAME
will automaticaly set other tags, like orientation etc.
 2017-11-27 15:15:21 +00:00
John Cupitt
10eef89a7f update c++ bindings 2017-11-26 17:45:04 +00:00
John Cupitt
406e228c9b vips_resize() is always centre convention 
it was corner for downsize, but should be centre to match imagemagick
 2017-11-26 15:24:40 +00:00
John Cupitt
7db13412e5 deprecate centre option to resize 
it's now centre on upsize, corner on downsize

see https://github.com/jcupitt/libvips/issues/705
 2017-11-25 14:22:20 +00:00
John Cupitt
5664a0d9b1 dzsave outputs extra tiles along right and bottom 
the deepzoom spec wants tiles to be written along the right and bottom,
even of those tiles contain no new pixels

this patch seems to work, but needs testing

see: https://github.com/jcupitt/libvips/issues/795
 2017-11-24 15:54:22 +00:00
John Cupitt
6a4b249445 add dispose handling 
see https://github.com/jcupitt/php-vips/issues/59
 2017-11-22 17:37:31 +00:00
John Cupitt
27621733f2 add gif-comment 2017-11-22 13:10:06 +00:00
John Cupitt
e56282e1fd add gif-loop metadata 
see https://github.com/rokka-io/imagine-vips/issues/3
 2017-11-21 16:04:18 +00:00
John Cupitt
a4b89aa370 credit for affine fixup 2017-11-18 15:11:02 +00:00
John Cupitt
fcec6d639b fix jaggies on the edge of affine output 
and add a "background" param
 2017-11-17 16:30:25 +00:00
John Cupitt
4ea743f5e6 add combine mode to find_indexed 2017-11-03 16:36:09 +00:00
John Cupitt
487c112807 add VIPS_COMBINE_MIN combining mode 
for vips_compass()
 2017-11-02 12:34:01 +00:00
John Cupitt
55e577a2fb rename nearest as fill_nearest 
avoid a clash with the nearest-neighbour interpolator
 2017-11-01 15:06:37 +00:00
John Cupitt
cdc286e9d6 switch to float distance calculations 
removes dithering effects along edges
 2017-11-01 13:16:36 +00:00
John Cupitt
3b75b1e2ac fix gcc7 build 
removed exception specs from deprecated C++ binding
 2017-10-24 09:31:23 +01:00
John Cupitt
5ec1d5b72f fix vipsthumbnail --size Nx 
oh dear, width but not height size specs to vipsthumbnail were not working

thanks jrochkind

see https://github.com/jcupitt/libvips/issues/781
 2017-10-23 22:27:23 +01:00
John Cupitt
dd503c03c6 add vips_value_set_blob_free() 
simpler for language bindings to call
 2017-10-19 16:37:43 +01:00
John Cupitt
68ed42e2fa make linear and cubic adaptive 2017-10-15 22:09:44 +01:00
John Cupitt
008fd21728 all done 2017-10-14 17:03:48 +01:00
John Cupitt
135d7a4dfb Merge branch '8.5' 2017-10-11 12:57:18 +01:00
John Cupitt
b4a6e6e309 spelling 2017-10-11 11:24:43 +01:00
John Cupitt
fd1d332892 update change notes 2017-10-11 10:12:01 +01:00
John Cupitt
40f20e5e0a Merge branch 'master' into gargsms-text-autofit 2017-10-10 13:04:31 +01:00
John Cupitt
12db3e936c Merge branch '8.5' 2017-10-09 22:35:29 +01:00
John Cupitt
6f16a9df71 fix a crash with heavy use of draw 
we were leaving a few bits of the original image around after
vips_image_copy_memory(), including the progress signal ... if earlier images
were freed, perhaps by a GC in a language binding, we could get a dangling
pointer

thanks Nakilon, see https://github.com/jcupitt/ruby-vips/issues/140
 2017-10-09 22:27:36 +01:00
John Cupitt
3f22424d3b test for gcc4 and ban vectors 
it has severe code gen problems, it seems

this seems to ban clang as well, unfortunately
 2017-10-07 11:20:21 +01:00
John Cupitt
aae5babfcc Merge branch 'master' into add-composite 2017-10-01 19:37:26 +01:00
John Cupitt
560f8ac727 add goi note to changelog 
see https://github.com/jcupitt/libvips/issues/741
 2017-10-01 19:35:44 +01:00
John Cupitt
4b24d82e8c some cleanups, a bit quicker 
it now has separate premultiplied and not-premultiplied paths
 2017-09-27 17:32:05 +01:00
John Cupitt
64be1d89b5 add gravity 2017-09-20 00:43:17 +01:00
John Cupitt
b2f66a3968 add note on svgload improvement 2017-09-17 05:20:48 +01:00
John Cupitt
e346fd639e built-in python bindings default to off 
we still make a typelib by default though

use the new pyvips binding instead, "pip install pyvips"
 2017-09-13 18:24:32 +01:00
John Cupitt
48680dccc4 remove python test suite 
it's in pyvips now
 2017-09-13 17:45:29 +01:00
John Cupitt
60f212c371 credit! 2017-09-11 11:54:01 +01:00
John Cupitt
0f4feb1b73 note file create time change 2017-09-11 11:22:20 +01:00
John Cupitt
5a37d3e809 add an intent option to thumbnail 
"intent" lets you set the rendering intent for any ICC conversions --
the default is the (more correct) relative, but "perceptual" can look
better

see https://github.com/jcupitt/libvips/issues/714
 2017-08-30 16:34:46 +01:00
John Cupitt
820c279697 Merge branch '8.5' 2017-08-30 14:59:16 +01:00
John Cupitt
653e99ea82 don't build enumtypes so often 
we were only replacing enumtypes if it had changed, but this meant that
make usually thought it was out of date compared to the source files,
and rebuilt it, which needed perl

now we always replace it, so (hopefully) perl is no longer a
compile-time dependency
 2017-08-30 14:37:48 +01:00
John Cupitt
2b70348d23 Merge branch '8.5' 2017-08-29 10:33:45 +01:00
John Cupitt
e2c83fe4bd fix jpegload fail 
we were only failing on libjpeg errors, but libjpeg treats very serious
things thaht we want to be able to catch (like truncated files) as warnings
... we must therefore error out if fail is set and libjpeg issues a warning

see https://github.com/lovell/sharp/issues/793
 2017-08-29 09:49:38 +01:00
John Cupitt
d12f8e200a support tiffsave_buffer pyramids 
add support for tiff pyramid save to memory, thanks bubba

see https://github.com/jcupitt/libvips/issues/702
 2017-08-26 16:26:37 +01:00
John Cupitt
2e513eef82 enable seq mode for join 
much faster for large TIFFs

see https://github.com/jcupitt/libvips/issues/717
 2017-08-25 10:53:44 +01:00
John Cupitt
97997d1990 Merge branch '8.5' 2017-08-18 22:13:51 +01:00
John Cupitt
f2576003b7 fix webp upscale in thumbnail 
we could try to use webp shrink on load to upscale, oops

see https://github.com/jcupitt/libvips/issues/710
 2017-08-18 22:08:43 +01:00
John Cupitt
3cf33d7f32 Merge branch '8.5' 2017-08-18 12:32:12 +01:00
John Cupitt
f2c55e80fe better dzsave with zip output to a file 
close down output earlier to help mark-sweep bindings
 2017-08-18 12:31:24 +01:00
John Cupitt
63550280a4 Merge branch '8.5' 2017-08-04 18:31:25 +01:00
John Cupitt
47a763209a hide warnings if VIPS_WARNING is defined 
If VIPS_WARNING is defined, suppress all warning messages from vips by
installing a null log handler.

Libraries should not call g_log_set_handler(), it is supposed to be for
the application layer, but this can be awkward to set up if you are using
libvips from something like Ruby.

This env var hack is a workaround.

see https://github.com/jcupitt/ruby-vips/issues/119
see https://github.com/jcupitt/libvips/issues/544
 2017-08-04 18:01:19 +01:00
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
John Cupitt
1e44ab5d39 version bump for 8.3.1 2016-04-15 08:42:36 +01:00
John Cupitt
2c646a02e4 better jpeg autorot 
jpeg write is more careful about removing exif tags that have been
removed from the image metadata

it failed previously if there were multiple Orientation tags
 2016-04-13 08:39:29 +01:00
John Cupitt
f58190bccd tag non-int rgb tiff as scrgb 
Photoshop uses 0 - 1 and no gamma for float RGB, so we tag float /
complex RGB tiffs as scRGB

thanks Murat
 2016-04-11 12:37:48 +01:00
John Cupitt
f3835ef0bf webpsave_buffer no longer ignores @lossless 
the @lossless arg to webpsave buffer was never wired up to anything,
thanks aaron42net.

see

https://github.com/jcupitt/libvips/issues/410
 2016-03-31 21:48:40 +01:00
John Cupitt
618af96723 vips_system() out-format can take options 
you can now put options like [scale=2] at the end of out_format ...
these are stripped before running the command, but use to load the
output image back into libvips again
 2016-03-28 10:50:39 +01:00
John Cupitt
ddd7ab7459 doc fixups 2016-03-25 10:56:59 +00:00
John Cupitt
ec5cdf4fff Merge branch '8.2' 2016-03-24 16:09:44 +00:00
John Cupitt
72ea91fecc fix nohalo, vsqbs interpolators 
we were getting occasional memory access problems in nohalo and vsqbs
interpolators ... the previous fix was not enough

version bump
 2016-03-24 16:06:31 +00:00
John Cupitt
e8b5cb6c23 add VIPS_COUNT_PIXELS, overcomputation tracking 
added VIPS_COUNT_PIXELS(), use like this:

	static int vips_shrinkh_gen( VipsRegion *or, ... )
	{
        	VIPS_COUNT_PIXELS( or, "vips_shrinkh_gen" );
	}

and on image close, if more than 100% of the pixels have been
calculated, you get a warning

only if you enable debugging, since this hurts perf slightly
 2016-03-22 12:26:45 +00:00
John Cupitt
46a18118c6 works! 2016-03-15 16:46:18 +00:00
John Cupitt
dc7902b12f Merge branch 'master' into add-lanczos3 2016-03-13 11:23:03 +00:00
John Cupitt
6368ab0649 add switches to disable rad, analyze and ppm 
vips has built-in support for rad, analyze and ppm ... add configure
switches to disable these readers

useful to reduce the attack surface in some applications
 2016-03-12 16:48:27 +00:00
John Cupitt
42224b6b0e Merge branch '8.2' 2016-03-12 15:12:56 +00:00
John Cupitt
abe4e70d02 make radload slightly more robust 
stops some valgrind warnings
 2016-03-12 15:10:52 +00:00
John Cupitt
4974a1ed9c better rounding for vips_resize() 
we were getting off by one size errors
 2016-03-10 19:53:05 +00:00
John Cupitt
9209fb25c5 update notes 2016-03-10 17:40:19 +00:00
John Cupitt
9201248623 Merge branch '8.2' 2016-03-06 18:05:12 +00:00
John Cupitt
acf5f5169a fix hist_entropy 
there was a copy-paste error in the call to vips_log(), thanks Lovell

see https://github.com/lovell/sharp/issues/295
 2016-03-06 18:02:59 +00:00
John Cupitt
2ea5c5f7e5 make python bandrank() work like bandjoin() 
we had a custom wrapper for bandjoin(), but bandrank(), a function with
an almost identical interface, did not ... this was confusing

bandrank() now has a custom wrapper too ... this breaks API
unfortunately, but hopefully very few people were using this thing and
it's better to make this change as soon as possible
 2016-03-01 12:12:51 +00:00
John Cupitt
25c3c49d1c better handling of cast+shift for non-int formats 
before, im.cast(uchar, shift = true) where im was float and tagged as
rgb16 would not shift the image, since it's unclear how much to shift a float
type by

now we do two casts: first, we guess the numeric range from the
interpretation, so rgb16 would be ushort, so we cast float->ushort;
second, we cast to the target type and do the shift on the way

see https://github.com/jcupitt/libvips/issues/397

thanks apacheark
 2016-03-01 11:31:54 +00:00
John Cupitt
19a838470b add webp shrink-on-load 
and vipsthumbnail knows about it too

see https://github.com/jcupitt/libvips/issues/398
 2016-02-28 14:36:21 +00:00
John Cupitt
e582f13d13 tiny polish to hist_find 
slightly faster again
 2016-02-28 12:08:06 +00:00
John Cupitt
b197773095 oop, overflow in sharpen 
plus another tweak of the defaults
 2016-02-28 11:24:35 +00:00
John Cupitt
ee1874c5ca much better handling of arrayimage cli args 
we were not setting the access hint on arrayimage args, so

arrayjoin "$(echo *.jpg)" x.tif[bigtiff] --across 10

would open all the jpg images to memory, usually, in random mode

now arrayimage args see the operation's access hint (seq in this case),
for much better behaviour

also, we allow any whitespace as an arg separator in arrayimage from
string
 2016-02-27 20:37:20 +00:00
John Cupitt
609e639528 Merge branch '8.2' 2016-02-26 12:44:54 +00:00
John Cupitt
5a60dd26f9 fix parsing of filenames containing brackets 
oops, missed part of a regexp in parse_token, see:

https://github.com/jcupitt/libvips/issues/395

thanks shilpi230
 2016-02-26 12:41:48 +00:00
John Cupitt
c1f1a7c1b3 improve sharpen for screen work 
it was a bit granular (since it was designed for offset work), make sharpen
easier to adjust for smaller effects

- new 'sigma' parameter
- greater parameter range
- more self-tests
 2016-02-25 11:16:24 +00:00
John Cupitt
01238a0fd5 more progressive jpg changes 
- Remove the nocache stuff for prog jpg images. There was no saving in
  practice, since operations downstream could be cached.

  nocache is for objects that can change, not for memory saving

- Call _destroy on the decompress object much earlier, it frees a huge
  amount of memoey for prog jpg images.
 2016-02-21 10:57:36 +00:00
John Cupitt
6f94cb5ed4 don't cache progressive jpg images 
progressive jpg images need loads of memory, we shouldn't cache them by
default ... our called can hold a ref if they want to keep the image
around

see https://github.com/jcupitt/libvips/issues/387
 2016-02-18 19:00:19 +00:00
John Cupitt
de59ff0e5a Merge branch 'master' into add-magickload-page 2016-02-18 11:28:09 +00:00
John Cupitt
ef6d8f5979 make test for matlab files more specific 
Previously vips just called Mat_Open() to test if a file was a Matlab
save file, but this is rather unreliable. For example, some JPEG files
can crash libmatio, and it can incorrectly think that at least some JP2
files are Matlab save files.

Instead, look for "MATLAB 5.0" at the start of the file. This is really too
specific, the first 116 bytes of a Matlab save file are freeform text,
but in practice all Matlab writers use the first few bytes to record the
file type.

See https://github.com/jcupitt/libvips/issues/385
 2016-02-16 09:53:04 +00:00
John Cupitt
8e667fbb3e still not quite there 
works, but is no faster, how odd

john@kiwi:~/pics$ time vips magickload nipguide.pdf[40] x.tif
real	0m0.244s
user	0m0.212s
sys	0m0.040s

$ time vips magickload nipguide.pdf x.tif --page 40
real	0m7.035s
user	0m6.900s
sys	0m0.152s

both give same result
 2016-02-15 08:53:23 +00:00
John Cupitt
9262d672b7 almost done 
a valgrind failure still
 2016-02-12 10:53:04 +00:00
John Cupitt
153886d2eb add svgload 
load from bubffer is not working though, strange ... it seems to be
generating a 16-biit image?
 2016-02-09 11:01:12 +00:00
John Cupitt
625e0fbd9e vipsthumbnail knows about pdfload 
woo, fast!
 2016-02-09 09:26:54 +00:00
John Cupitt
991cc4f88b rename as pdfload 2016-02-08 20:25:03 +00:00
John Cupitt
69c2fe00f7 add C API and docs for popplerload 2016-02-08 10:05:37 +00:00
John Cupitt
8da4e706dd start adding poppler support 2016-02-07 23:33:43 +00:00
John Cupitt
41b41effde Merge branch 'add-reduce' 2016-02-07 17:46:46 +00:00
John Cupitt
8cffd136e9 finish reduce 
and fix up bicubic a bit, it works better on int32 images now
 2016-02-07 17:41:39 +00:00
John Cupitt
67f3ecfd8d wire up to resize / similarity 
still need tests
 2016-01-29 15:23:00 +00:00
John Cupitt
e4b31dde38 fix labq sparc read 
byteswap was swapping coded images, or trying to
 2016-01-27 12:44:36 +00:00
John Cupitt
db20d70495 fix some more compiler warnings 
and a bit of formatting
 2016-01-26 15:10:46 +00:00
John Cupitt
4d18300560 add VIPS_FABS/MAX/MIN/CLIP 
macros which use the gcc __builtin_fabs() etc. functions when they can
 2016-01-26 12:26:21 +00:00
John Cupitt
73bcc8b5d3 improve the using-C docs 
add some stuff on giving options to operations

see https://github.com/jcupitt/libvips/issues/373
 2016-01-25 09:35:06 +00:00
John Cupitt
07a1903390 use g_assert_not_reached() 
we were using g_assert(0) ... g_assert_not_reached() makes the
intention clearer
 2016-01-24 13:21:53 +00:00
John Cupitt
a7d889df06 use builtin floor / ceil 
get rid of FAST_PSEUDO_FLOOR, add VIPS_FLOOR and VIPS_CEIL, use them
everywhere

see https://github.com/jcupitt/libvips/pull/372
 2016-01-23 09:50:57 +00:00
John Cupitt
94db738773 fix double free on tiff write 
if you attached a profile to a tiff from a file during write, you'd get
a double-free

see https://github.com/jcupitt/libvips/issues/371
 2016-01-22 17:43:42 +00:00
John Cupitt
c7eb88b87f fix subsample at the command-line 
it had the SEQ flag set, causing confusion with vips_sequential() when
it skipped scanlines on startup

see https://github.com/jcupitt/libvips/issues/370
 2016-01-22 14:37:42 +00:00
John Cupitt
2e5880b69c speed up for vips_shrinkh() 
remove the sum buffer, we can just use a local, about 5% faster

see https://github.com/jcupitt/libvips/pull/369
 2016-01-22 09:15:38 +00:00
John Cupitt
af8b43b16d fix to make check in non-C locales 
"make check" uses bc, which needs '.' as a decimal sep.

https://github.com/jcupitt/libvips/issues/367
 2016-01-17 09:29:25 +00:00
John Cupitt
4512400a3c better rounding in new bilinear interp 
was off by 0.5
 2016-01-14 13:13:08 +00:00
John Cupitt
6ca9a907b8 reorder load tests 
and a slight memory saving on ifthenelse
 2016-01-13 20:32:23 +00:00
John Cupitt
52384606dd bump version for new C++ patch 2016-01-12 17:12:46 +00:00