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Author SHA1 Message Date
John Cupitt
be574be539 popplerload hacking 
metadata, relative filenames
 2016-02-08 14:41:57 +00:00
John Cupitt
69c2fe00f7 add C API and docs for popplerload 2016-02-08 10:05:37 +00:00
John Cupitt
a7192ce8c6 update notes 2016-02-08 10:00:18 +00:00
John Cupitt
a41a1d5c33 popplerload seems to work 
though it's not been tested much
 2016-02-08 09:30:33 +00:00
John Cupitt
8da4e706dd start adding poppler support 2016-02-07 23:33:43 +00:00
John Cupitt
41b41effde Merge branch 'add-reduce' 2016-02-07 17:46:46 +00:00
John Cupitt
8cffd136e9 finish reduce 
and fix up bicubic a bit, it works better on int32 images now
 2016-02-07 17:41:39 +00:00
John Cupitt
39e6963033 start tests 2016-01-29 17:55:54 +00:00
John Cupitt
67f3ecfd8d wire up to resize / similarity 
still need tests
 2016-01-29 15:23:00 +00:00
John Cupitt
fbe010b80a in-line reduceh as well 2016-01-29 15:01:54 +00:00
John Cupitt
dd7b30bd00 in-line reducev 
bit quicker
 2016-01-29 13:16:00 +00:00
John Cupitt
3bb24f2567 some tinkering 
still not very quick
 2016-01-28 09:33:32 +00:00
John Cupitt
4b2349323c all working 
though not as quick as hoped :(
 2016-01-27 21:59:07 +00:00
John Cupitt
991349c9a7 add cubicv, reducev 
untested
 2016-01-27 15:01:54 +00:00
John Cupitt
3e78bdb6a9 reduceh is working! 2016-01-27 14:34:06 +00:00
John Cupitt
e4b31dde38 fix labq sparc read 
byteswap was swapping coded images, or trying to
 2016-01-27 12:44:36 +00:00
John Cupitt
add75f235f version bump 2016-01-27 12:44:24 +00:00
John Cupitt
8b09c86492 add cubich interp., start reduceh 2016-01-27 11:12:36 +00:00
John Cupitt
65930cf866 version bump 2016-01-26 16:45:56 +00:00
John Cupitt
1f93efd65d fix more compiler warnings 2016-01-26 16:41:03 +00:00
John Cupitt
db20d70495 fix some more compiler warnings 
and a bit of formatting
 2016-01-26 15:10:46 +00:00
John Cupitt
2698688c94 oops spelling 2016-01-26 13:37:56 +00:00
John Cupitt
4d18300560 add VIPS_FABS/MAX/MIN/CLIP 
macros which use the gcc __builtin_fabs() etc. functions when they can
 2016-01-26 12:26:21 +00:00
John Cupitt
baf5e860e3 Merge pull request #374 from lovell/conv-allow-vectorise 
Improve convolution performance by 20-25%
 2016-01-26 09:18:11 +00:00
Lovell Fuller
0cac224431 Replace use of "Duff's device" with for-loop to allow compiler to optimise. 
Reduces CPU instruction count of conv_gen function by ~30%.
Improves performance of convolution operation by 20-25%.
 2016-01-25 21:17:41 +00:00
John Cupitt
73bcc8b5d3 improve the using-C docs 
add some stuff on giving options to operations

see https://github.com/jcupitt/libvips/issues/373
 2016-01-25 09:35:06 +00:00
John Cupitt
07a1903390 use g_assert_not_reached() 
we were using g_assert(0) ... g_assert_not_reached() makes the
intention clearer
 2016-01-24 13:21:53 +00:00
John Cupitt
31e4168718 clip bicubic output range from int 
The output range of the bicubic interpolator is outside the input range,
we must clip from a larger type.

See https://github.com/jcupitt/libvips/pull/372
 2016-01-23 10:09:11 +00:00
John Cupitt
0dd7f14ada put interpolate param back 
Although no current interpolators use the interpolate param, having it
there makes it possible for other (perhaps user-defined) interpolators
to be parameterised.

For example, you could write:

	vips affine in.v out.v "2 0 0 2" --interpolate sharp[2]

and `sharp` could do a bicubic and sharpen by 2 in a single operation.

See https://github.com/jcupitt/libvips/pull/372
 2016-01-23 09:57:27 +00:00
John Cupitt
a7d889df06 use builtin floor / ceil 
get rid of FAST_PSEUDO_FLOOR, add VIPS_FLOOR and VIPS_CEIL, use them
everywhere

see https://github.com/jcupitt/libvips/pull/372
 2016-01-23 09:50:57 +00:00
John Cupitt
e025a04d68 Merge pull request #372 from lovell/resample-builtin-floor 
Small perf improvements to vips_affine + bicubic
 2016-01-23 09:28:34 +00:00
Lovell Fuller
25eeb82de6 Consolidate FAST_PSEUDO_FLOOR macros, prefer __builtin_floor if available 
Use of vips_interpolate_get_method avoids need to pass interpolate instance
Remove an unnecessary temp variable to help prevent register starvation

5% less time in vips_interpolate_bicubic_interpolate
10% less time in vips_affine_gen
 2016-01-22 22:26:29 +00:00
John Cupitt
f3e3514b03 test embed profile in tiff 
test embed from file
 2016-01-22 22:06:20 +00:00
John Cupitt
66e0676a40 fix compiler warning 2016-01-22 17:44:43 +00:00
John Cupitt
94db738773 fix double free on tiff write 
if you attached a profile to a tiff from a file during write, you'd get
a double-free

see https://github.com/jcupitt/libvips/issues/371
 2016-01-22 17:43:42 +00:00
John Cupitt
923fb43ae9 clear up tiny docs issue 
not about SEQ behaviour
 2016-01-22 15:02:18 +00:00
John Cupitt
c7eb88b87f fix subsample at the command-line 
it had the SEQ flag set, causing confusion with vips_sequential() when
it skipped scanlines on startup

see https://github.com/jcupitt/libvips/issues/370
 2016-01-22 14:37:42 +00:00
John Cupitt
9b968491d3 unroll shrinkh inner loop 
use VIPS_UNROLL for the inner loop, another 5% or so
 2016-01-22 10:21:38 +00:00
John Cupitt
dce70c82a5 vectorise vips_shrinkh() 
add special paths for 1, 3 and 4 bands so we can vectorise

see https://github.com/jcupitt/libvips/pull/369
 2016-01-22 09:49:20 +00:00
John Cupitt
2e5880b69c speed up for vips_shrinkh() 
remove the sum buffer, we can just use a local, about 5% faster

see https://github.com/jcupitt/libvips/pull/369
 2016-01-22 09:15:38 +00:00
John Cupitt
d29710db66 Merge pull request #369 from lovell/shrinkh-loop-vector 
Allow compiler to use vector unit with vips_shrinkh for ~25% boost
 2016-01-22 08:50:02 +00:00
Lovell Fuller
572354b793 Allow compiler to vectorise vips_shrinkh 
Reduce for-loop count in shrinkh macros
Don't access loop variable outside loop
Remove unnecessary use of ceil from integer
 2016-01-21 20:18:56 +00:00
John Cupitt
16b76b2cfd Merge branch 'master' of github.com:jcupitt/libvips 2016-01-21 07:47:14 +00:00
John Cupitt
89d1127de6 Merge pull request #368 from lovell/builtin-isnan-isinf 
Use gcc/clang isnan and isinf builtin functions, where available
 2016-01-21 07:22:35 +00:00
Lovell Fuller
90c1fb9a94 Use gcc/clang isnan and isinf builtin functions where available. 
These are used heavily in the building of look-up tables at
start-up time and therefore improve vipsthumbnail perf by ~4%.
 2016-01-20 19:02:14 +00:00
John Cupitt
d3f87c5f44 notes 2016-01-20 11:58:59 +00:00
John Cupitt
af8b43b16d fix to make check in non-C locales 
"make check" uses bc, which needs '.' as a decimal sep.

https://github.com/jcupitt/libvips/issues/367
 2016-01-17 09:29:25 +00:00
John Cupitt
4512400a3c better rounding in new bilinear interp 
was off by 0.5
 2016-01-14 13:13:08 +00:00
John Cupitt
6ca9a907b8 reorder load tests 
and a slight memory saving on ifthenelse
 2016-01-13 20:32:23 +00:00
John Cupitt
52384606dd bump version for new C++ patch 2016-01-12 17:12:46 +00:00