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117 Commits

Author SHA1 Message Date
Heshy Roskes d8c04011ea
Add hyperbolic functions (#2508) 
* add hyperbolic functions
* add hyperbolic function tests
* changelog
* add inverse hyperbolic functions for old compilers
 2021-11-02 15:05:37 +00:00
John Cupitt 0c70f3dc7d
add fail-on : better control over loader error handling (#2360) 
Instead of a simple fail/don't-fail boolean switch, add fail-on, an enum which sets the sensitivity of loaders to errors. 

There's a new sensitivity level which tries to detect truncated images, but ignores other types of error.
 2021-10-31 14:13:18 +00:00
John Cupitt 47383b5bfc
tell buffer and target savers the file format (#2499) 
tell buffer and target savers the file format

Currently, buffer and target savers are not told the format they should
write.

This is usually OK (the JPEG saver already knows it should write JPEG),
but some savers can write several formats, and these currently need an
extra parameter.

For example:

```ruby
buf = x.write_to_buffer ".bmp", format: "bmp"
```

The first ".bmp" gets libvips to pick magicksave, the second
`format:` param is necessary to tell magicksave to write BMP.

This patch adds stub subclasses so that the savers know the exact format. It also improves PPM save.
 2021-10-28 18:57:24 +01:00
John Cupitt 13285c7cfc Merge branch 'master' of https://github.com/indus/libvips into indus-master 2021-10-20 18:41:39 +01:00
John Cupitt 0f3193b7f2
Add iiif3 (#2483) 
* add iiif3 support to dzsave

some small things have changed from v2
 2021-10-19 14:18:40 +01:00
Keim, Stefan f75f698ab4 Add atan2 to math2 2021-06-18 11:14:02 +02:00
John Cupitt edcdf8af70 rebase add-jp2ktiff on master 2021-04-26 15:16:20 +01:00
Lovell Fuller 3ad7363104 heifsave: add option to control subsample_mode 
Defaults to no subsampling when Q>90 for consistency with jpegsave.

Deprecate VipsForeignJpegSubsample enum, replace with more generic
VipsForeignSubsample.
 2021-01-13 10:01:34 +00:00
John Cupitt 834234c23c add `all` smartcrop mode 
So you can crop to fill as well as crop to fit.

see https://github.com/libvips/libvips/issues/1583
 2020-03-19 18:57:40 +00:00
John Cupitt 0a23bf3578 revise formatting, add docs 
fix up some formatting from https://github.com/libvips/libvips/pull/1552

plus some other small changes
 2020-02-18 17:37:56 +00:00
elad laufer d2b794ec35 - use a single enum and switch that replaces no_subsample, force_subsample 2020-02-17 11:29:57 +02:00
alon-ne f88dab9ccd
Fix gif dispose handling for DISPOSE_BACKGROUND and DISPOSE_PREVIOUS 
- Add 'scratch' field to gif that holds temporary 'scratch buffer' used for rendering frames
- For DISPOSE_BACKGROUND: Set background color to transparent instead of 0
- For DISPOSE_BACKGROUND: Write background pixels into scratch after rendering current frame, so it will be used in next frame
- For DISPOSE_PREVIOUS: Save frames that are not disposed into 'previous' field in gif, when DISPOSE_PREVIOUS is specified start with that previous frame. see http://webreference.com/content/studio/disposal.html
- Add "ANIMEXTS1.0" to Application Extension parser
- Graphic Control Extension parser refactor
- Compare file contents to expected images for animated gifs in foreign tests
 2020-02-06 17:36:13 +02:00
John Cupitt c14d7c254b add max and min to region_shrink 
Add max and min to region_shrink. Useful with tiffsave and dzsave when
the image is (for example) line art. Thanks rgluskin.

See: https://github.com/libvips/libvips/issues/1490
 2020-01-24 17:55:11 +00:00
John Cupitt f499cefb0e add iiif layout to dzsave 2019-11-09 20:40:39 +00:00
John Cupitt 52ee3b083f add webp and zstd support to tiffsave 
needs some tests still
 2019-07-08 10:39:44 +01:00
Lovell Fuller 42f9f78c86 heifsave: expose compression option 
improve error messaging, add further suffixes
 2019-07-03 13:07:58 +01:00
John Cupitt 080ab87d37 Merge branch 'master' into HEAD 2019-04-11 16:18:39 +01:00
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 e27c290856 glib version change 2019-02-27 14:24:17 +00:00
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 2c7684669f
Merge branch 'master' into region-shrink-method 2018-06-13 17:13:16 +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 9ac45f42e3 needs testing still 2018-04-30 17:38:32 +01:00
Simon Harris a14f3acdf5 Adds a first cut for region shrink mode 2018-03-28 21:59:17 +11:00
Simon Harris 36076f8294 Adds VipsRegionShrink type 2018-03-28 07:35:49 +11:00
John Cupitt 605d93c92f add SZI container type 
and improve the scan-properties file a bit
 2018-01-27 12:52:22 +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 40f20e5e0a Merge branch 'master' into gargsms-text-autofit 2017-10-10 13:04:31 +01:00
John Cupitt 3a43fd4057 vectorize 3 band case 
needs to test for gcc though
 2017-10-01 19:07:02 +01:00
John Cupitt 0cc786aa14 give up on PDF modes for now 
they need colour channels in [0-1], so some sort of RGB only ... come
back to this later
 2017-09-28 15:09:57 +01:00
John Cupitt c9a83ac9a8 add the rest of the porter-duff operators 
PDF ones next, after a reorganisation
 2017-09-28 09:04:55 +01:00
John Cupitt 62bc9b7e1d start to add more blend modes 2017-09-27 22:34:05 +01:00
John Cupitt 7c7c30a601 works! 
but only OVER mode at the moment, and it's not especially quick
 2017-09-27 08:58:36 +01:00
John Cupitt 64be1d89b5 add gravity 2017-09-20 00:43:17 +01:00
gargsms a3955c6c0a Fix code convention, issues with gravity 2017-09-18 18:34:50 +05:30
gargsms 8f660ab45b [WIP] Autofit text in the requested dimensions 2017-08-01 23:26:24 +05:30
John Cupitt 260180197d done! but needs some tests 2017-05-04 14:54:49 +01:00
John Cupitt 126fdd4f6f update for new goi in ubuntu 17.04 2017-04-13 16:26:15 +01:00
John Cupitt 9e6832b34d add --smartcrop to vipsthumbnail 
does the obvious thing
 2017-03-08 14:31:00 +00:00
John Cupitt d40773515c add smartcrop 2017-03-01 15:41:26 +00:00
John Cupitt e6b20cbd0f Revert "remove stalling" 
This reverts commit 959f412380.
 2017-02-27 10:26:32 +00:00
John Cupitt e7ae10ef68 Revert "more UNBUF fixes" 
This reverts commit a4d3c2a754.
 2017-02-27 10:25:41 +00:00
John Cupitt a4d3c2a754 more UNBUF fixes 
try to keep compat better, remove the single-thread-first-tile idea
 2017-02-21 16:53:48 +00:00
John Cupitt 959f412380 remove stalling 2017-02-21 15:03:15 +00:00
John Cupitt 2fa3736722 all done, I think 2017-01-06 13:43:43 +00:00
Felix Bünemann f834ea39f6 Add lossy compression "preset" option to webpsave 
This allows to tune the lossy webp encoder for certain types of images.
 2016-04-22 23:57:07 +02:00
John Cupitt a26291a426 reducehl3 is done 
sort of anyway, tinkering with optimization
 2016-03-09 22:47:02 +00:00
John Cupitt a42232a9a1 boilerplate for hsv colourspace 2015-06-09 10:18:30 +01:00
John Cupitt 42efce5c66 fix various typos 
thanks dg1727

see https://github.com/jcupitt/libvips/issues/277
 2015-04-21 18:39:02 +01:00