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96ef05a9d1
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1345 Commits

Author SHA1 Message Date
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
a7edd235c4 improve compat with ancient glibs 
and fix a tiny threading leak
 2016-10-28 16:25:31 +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
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