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Author SHA1 Message Date
John Cupitt
ac96bb80b5 try revising spng FMT handling again 2020-06-09 02:38:38 +01:00
John Cupitt
f113e64515 update for latest spng 1/2/4 bit handling 2020-06-09 02:27:46 +01:00
John Cupitt
70a1dc0926 Revert "improve transparency support" 
This reverts commit 20c9a7f7cc.
 2020-06-09 02:04:55 +01:00
John Cupitt
ad73034a30 Merge branch 'master' into libspng-experiment 2020-06-09 02:03:40 +01:00
John Cupitt
dbae22ab58 revise unpremultiply 
We were clipping alpha very aggressively. With over- and under-shoot
ringing on edges, this could introduce extra fringes.

see https://github.com/libvips/libvips/pull/1675
 2020-06-08 18:47:28 +01:00
John Cupitt
20c9a7f7cc improve transparency support 2020-06-07 17:27:24 +01:00
John Cupitt
6705ff85b5 use INTERLACE_NONE 2020-06-07 15:29:48 +01:00
John Cupitt
fc872421aa add exif/icc/text text chunk read 
using new libspng 0.6 features
 2020-06-07 15:17:37 +01:00
John Cupitt
ef408d630b start adding ICC and XMP support 
not quite working though ... seems to need a fix in libspng still
 2020-06-07 14:00:10 +01:00
John Cupitt
a44814018d Merge branch 'master' into libspng-experiment 2020-06-07 11:56:16 +01:00
John Cupitt
981d5c4b16 revise autorot system 
- deprecate vips_autorot_get_angle() since orientation is no longer a
simple rotate
- add vips_image_get_orientation() and vips_image_get_orientation_swap()
- revise tiff and jpeg loader autorotate to just call vips_autorot(),
but only if necessary
- revise thumbnail autorotate too
 2020-06-06 17:25:46 +01:00
John Cupitt
30386db775
Merge pull request #1650 from wix-playground/master 
Handle mirrored orientations in autorot
 2020-06-06 14:46:15 +01:00
John Cupitt
54c40249f8
Merge pull request #1673 from libvips/ome-tiff-pyramid 
Support for subifd image pyramids
 2020-06-05 13:35:21 +01:00
John Cupitt
d5eecac88c add note about plane separate write 2020-06-05 12:14:40 +01:00
John Cupitt
c82be3d30e read tiff metadata more carefully 
we were not always fetching the root metadata
 2020-06-04 05:07:34 +01:00
John Cupitt
6e1fd6136d safer directory set in tiff load 2020-06-03 16:41:29 +01:00
John Cupitt
0f57f3692b stop a compiler warning 2020-06-03 13:11:18 +01:00
John Cupitt
6d5a371147 add some tests for subifd pyramids 
fix a problem with jpg-compressed tiffs too
 2020-06-02 18:08:34 +01:00
John Cupitt
d74fe71764 better thumbnail behaviour for subifd pyramids 2020-06-02 14:23:14 +01:00
John Cupitt
cff84f4606 add subifd pyr support to thumbnail 
thumbnail can spot subifd pyramids and load lower levels if necessary
 2020-06-02 12:53:36 +01:00
John Cupitt
460e1d0bf5 set n-subifds for tiff files 
says how many subifds in the first page
 2020-06-01 17:22:10 +01:00
John Cupitt
d16f1e67dd fix tile clipping in toilet roll images 
we were not clipping unaligned tiled correctly
 2020-06-01 13:22:51 +01:00
John Cupitt
39af6c21c8 update notes 2020-06-01 00:55:19 +01:00
John Cupitt
0bdd2290a0 fix tiff directory mixup 
we were not always selecting the correct read directory
 2020-06-01 00:39:15 +01:00
John Cupitt
f0d4b36d7d better tiled tiff detection 
for tiffs with mixed strip and tile images
 2020-05-29 18:30:49 +01:00
John Cupitt
dc29f8dde6 add subifd select to tiff load 2020-05-28 12:40:31 +01:00
John Cupitt
9e4b78215e fix po 2020-05-27 16:30:04 +01:00
John Cupitt
aaebb3b346 fix thumbnail of mono image 
we were using RGB as the shrink space
 2020-05-27 15:24:27 +01:00
John Cupitt
474bfe3782 pytest and valgrind pass 
remove some dbg code
 2020-05-24 17:04:55 +01:00
John Cupitt
a2d196b736 add subifd support to the TIFF writer 
A new subifd switch enables the writing of pyramids layers into subifds
(rather than the default successive pages). This switch is enabled
automatically for multi-page pyramids.

seems to work in quick tests
 2020-05-24 15:21:41 +01:00
John Cupitt
6a8f128831 Merge branch 'master' into ome-tiff-pyramid 2020-05-22 16:12:00 +01:00
John Cupitt
ba0dea001d sort out premultiply rules for upsizing 
vips_resize() uses vips_affine() for upsizing and vips_reduce() for
downsizing. Affine automaticaly does a vips_premultiply() for images
with an alpha channel, but reduce does not. This meant that we could
sometimes premultiply twice.

This patch adds a "premultiplied" flag for affine which turns automatic
premultiuplication off, vips_resize() uses this to block affine's auto
premul feature, and the resize docs are clarified to stress that the
operation does not do premultiplication for you.

See https://github.com/libvips/libvips/issues/1629
 2020-05-19 14:31:34 +01:00
John Cupitt
44db1742fd tiny doc polish 2020-05-19 14:31:22 +01:00
John Cupitt
b4a9636e51
Merge pull request #1657 from lovell/improve-avif-detection 
Improve compile-time libheif and runtime AVIF detection
 2020-05-18 22:38:11 +01:00
Lovell Fuller
00dcfa40f1 Improve compile-time libheif and runtime AVIF detection 2020-05-18 19:43:43 +01:00
John Cupitt
951540f4fe revise text docs 
To clarify the meaning of VipsAlign in this context.

See https://github.com/libvips/libvips/issues/1654#issuecomment-629671463
 2020-05-16 17:57:31 +01:00
John Cupitt
63649629e0 fix doc error 
Hopefully clearer, see https://github.com/libvips/libvips/issues/1654
 2020-05-16 12:37:20 +01:00
John Cupitt
9cdbf3ee07 don't add fontfiles repeatedly in text 
It seems fontconfig will let you add a file repeatedly. This patch adds a
table which is used to block repeated additions and prevents memory growth
and slowdown.

see https://github.com/libvips/libvips/issues/1655
 2020-05-16 12:28:12 +01:00
John Cupitt
84b9d1f638 seems to make an OME pyramid correctly 
```
$ vips tiffsave ../k2.jpg x.tif --tile --pyramid --subifd && tiffinfo x.tif
TIFF Directory at offset 0x900008 (9437192)
  Image Width: 1450 Image Length: 2048
  Tile Width: 128 Tile Length: 128
  Resolution: 72.009, 72.009 pixels/inch
  Bits/Sample: 8
  Sample Format: unsigned integer
  Compression Scheme: None
  Photometric Interpretation: RGB color
  Orientation: row 0 top, col 0 lhs
  Samples/Pixel: 3
  Planar Configuration: single image plane
  SubIFD Offsets: 11797898 12388230 12585130 12634526     0
```
 2020-05-15 17:16:04 +01:00
John Cupitt
c2165671e2 update benchmark result 2020-05-13 16:38:35 +01:00
John Cupitt
d78480c846 update for SPNG_FMT_PNG 
We can now decode PNG to g8/g16/ga8/ga16/rgb8/rgb16 etc.
 2020-05-13 15:25:01 +01:00
John Cupitt
df4f03863e Merge branch 'master' into libspng-experiment 2020-05-13 14:37:00 +01:00
John Cupitt
ffa10eb148 default JFIF res to 72dpi 
We were 1ppm before. 72dpi is the EXIF default.
 2020-05-13 14:34:59 +01:00
John Cupitt
7deead8911 add a subifd flag to tiffsave 2020-05-13 12:45:28 +01:00
elad laufer
c993a7ad2a - use jpeg in test target 2020-05-13 11:12:01 +03:00
elad laufer
b31523b470 Merge branch 'libvipsd-master' 2020-05-12 13:03:31 +03:00
Elad Laufer
b05cf39df8
Handle mirroring in autorot (#8) 
* handle mirroring in autorot
* added tests for autorot
 2020-05-12 13:01:48 +03:00
John Cupitt
5549175b5e add docs for option_string arg to thumbnail 
We'd forgotten to add docs for option_string, thanks zhaohuxing.
 2020-05-12 10:27:48 +01:00
John Cupitt
b9385b9d35 only warn on png save with a bad profile 
Previously we failed. This is very ugly, but it seems to be the only
obvious way to fix this.

See https://github.com/libvips/libvips/issues/1578
 2020-05-11 18:00:26 +01:00
John Cupitt
0c9f311f1e
Merge pull request #1647 from libvips/revise-kernel-calculation 
revise kernel mask calculations
 2020-05-11 13:55:24 +01:00