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1852 Commits

Author SHA1 Message Date
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