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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
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
ea2367e24c forgot to rename the wrapper script 
and add tiny dbg to gifload
 2019-06-20 12:18:40 +01:00
John Cupitt
17c7a78c1b version bump for libvips 8.9 2019-06-20 11:39:04 +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
65c41ef7a5 fix a couple of clang compiler warnings 2019-06-15 17:35:46 +01:00
John Cupitt
631383026b revise README again 2019-06-15 13:21:43 +01:00
John Cupitt
aa9164713d note HEIC support in README 2019-06-15 13:14:26 +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
db36e19ffa note PNG XMP support in docs 2019-06-13 09:26:09 +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
eaaa203f0a better compat with older IM 
in the ismagick() test
 2019-06-08 17:32:04 +01:00
John Cupitt
dc8555201d use our sniffer as well is ismagick() 
We need to check files for magickload with our sniffer as well as the
imagemagick one.
 2019-06-08 17:13:49 +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
bddbecffaf
Merge pull request #1331 from lovell/webp-lossless-quality 
Ensure WebP quality option is set for lossless
 2019-06-06 06:39:30 +01:00
Lovell Fuller
8d0a42efe2 Ensure WebP quality option is set for lossless 2019-06-05 23:01:06 +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
81861baee9 add note to docs in vips_init() 2019-05-30 19:46:05 +01:00
John Cupitt
675c6361eb revise page-height rules again 
Only set `page-height` if `n` is set as an argument. This means you only
get a multi-page image if you specifically ask for it.
 2019-05-29 14:18:46 +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
c7e213a9fa LinearGRAYColorspace is rather recent, it seems 2019-05-24 17:47:50 +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
da402cee23 faster and more accurate bilinear 
go to fixed point earlier in calculation of interpolation coefficients
 2019-05-14 13:10:45 +01:00
John Cupitt
29d9673fd8 update comment 2019-05-14 08:20:30 +01:00
John Cupitt
44afdbc314 more accurate bicubic of int16 images 
use float path for int16 -- the fixed-point path can miss by a small
amount

see https://github.com/libvips/libvips/issues/1309
 2019-05-13 22:05:41 +01:00
John Cupitt
c9ba0915c1 more accurate bilinear for int16 pixels 
fixed-point interpolation could give small errors

see https://github.com/libvips/libvips/issues/1309

need a similar change for bicubic etc.
 2019-05-13 18:32:48 +01:00
John Cupitt
a02229245e tidy up conditionals a bit 2019-05-10 16:43:17 +01:00
John Cupitt
b2ad9f9df8 better compat with older libheif 
We were looking for "yes" from the builtin_h265_decoder variable to
enable heifload, but this variable was only added in libheif 1.3, so we
failed to turn on heifload correctly.

We now look for not "no", ie. default on.

See https://github.com/libvips/build-win64/pull/26#issuecomment-490854408
 2019-05-10 12:59:24 +01:00
John Cupitt
3e60e816ed split heifload / heifsave 
test for libheif supporting decode and encode, and turn heifload and
heifsave on and off
 2019-05-08 21:13:00 +01:00
John Cupitt
b680d9f833 split heifload / heifsave tests 
to allow building with the de265 decoder, but not the GPL ffmpeg x265 encoder
 2019-05-08 20:42:38 +01:00
John Cupitt
d5ca1ddfd4 all tested and working 
revised formula for in/out/dest-in/dest-out, for vector and scalar paths

see https://github.com/libvips/libvips/issues/1301
 2019-05-08 18:16:40 +01:00
John Cupitt
447e0f3ea2 Merge branch 'master' into revise-composite 2019-05-08 16:14:01 +01:00
John Cupitt
3921e63561 fix vips image writes of more than 2gb 
With very wide images and huge numbers of threads, it was possible to
trigger an int overflow in write_vips().

Thanks @erdmann

See https://github.com/libvips/libvips/issues/1306
 2019-05-07 13:56:52 +01:00
John Cupitt
bcdaeca578 fix anim webp load for some sizes 
rounding on resize for each frame needs to match resize for whole image
 2019-05-01 16:34:58 +01:00
John Cupitt
b1c995b2d9 more animated webp load fixes 
webpload scale on load works for animated images
 2019-05-01 16:25:13 +01:00
John Cupitt
37865e34f8 oop silly webp jpg mixup in last commit 2019-04-30 20:07:08 +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
ec0b7e7bdf fix pdf test 
for new sizing rules
 2019-04-30 16:24:36 +01:00
John Cupitt
29d29533d4 better pdfload page size rounding 
We were doing simple round down for page size with @scale param. But
this makes it very sensitive to rounding errors, so do rint() instead.

vips-resize() does rint() on the output size as well for the same
reason.

See https://github.com/libvips/libvips/issues/1297#issuecomment-487682785
 2019-04-30 16:08:26 +01:00
John Cupitt
7326a409c6 reenable webp shrink-on-load in thumbnail 
the breakage is in animated webp load with preshrink rather than
thumbnail
 2019-04-29 17:30:34 +01:00
John Cupitt
ea9e477ad3 better gif-loop handling (again) 
setting loops to 0 was broken
 2019-04-29 17:12:20 +01:00
John Cupitt
522ddc1430 better thumbnailing of multipage docs 
shrink-on-load should now work for multipage PDF thumbnailing

see https://github.com/libvips/libvips/issues/1297
 2019-04-29 17:05:19 +01:00
John Cupitt
8482aa3ff1 tiny cleanup 
some left-over pyramid detection code in tiff2vips
 2019-04-29 12:52:47 +01:00
John Cupitt
53b43e0497 fix setting of iterations in magicksave 
ImageMagick uses 0 to mean unset, so we must always add 1. See
coders/gif.c.

See https://github.com/libvips/libvips/issues/1302
 2019-04-29 08:43:39 +01:00
John Cupitt
b100f5a025 start revising composite again 
we can get ugly sparkles in transparent areas in some cases ... start
reworking some modes

see https://github.com/libvips/libvips/issues/1301
 2019-04-29 07:43:14 +01:00