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Author SHA1 Message Date
Felix Bünemann
1e68b3a486 Rename pngsave colors/colours, quantize/quantise 2018-06-19 21:32:44 +02:00
Felix Bünemann
c63d7f7373 Change default PNG quantization quality to 100 
and improve parameter description.
 2018-06-19 09:19:43 +02:00
Felix Bünemann
d9d2f7b89a Add 8bpp PNG quantization support 
This adds support for saving 8-Bit one band palette based PNG images
with palette based alpha channel (often called PNG8+Alpha).

The image is first converted to sRGBA and then quantized using
libimagequant controlled by the colors, Q and dither params.
 2018-06-18 02:22:46 +02:00
Felix Bünemann
b5531cf1ed Add libimagequant detection to configure 2018-06-18 00:57:18 +02:00
John Cupitt
f5cfd7f17a
Merge pull request #1007 from felixbuenemann/verbose-pyvips-tests 
Run pytest verbose on Travis CI
 2018-06-14 16:58:21 +01:00
Felix Bünemann
0f9e87bc69 Run pytest verbose on Travis CI 
This should make it easier to see which tests cause problems.
 2018-06-14 17:40:27 +02:00
John Cupitt
1e102910cf allow osx to fail for now 2018-06-14 16:15:43 +01:00
John Cupitt
020dc980f0
Merge pull request #1005 from felixbuenemann/run-pyvips-on-travis-ci 
Run pyvips test suite on Travis CI
 2018-06-14 15:56:39 +01:00
Felix Bünemann
eaa5cfc334 Run pyvips test suite on Travis CI 
* Download pyvips version specified by PYVIPS_VERSION environment variable
  and run its test suite after the C based tests
* Fix the macOS build and use the latest Xcode/macOS versions
* Disable homebrew updates for more predictable builds
* Sync dependencies between linux and osx targets
 2018-06-13 23:36:07 +02:00
John Cupitt
d063a81689 fix vipssave on macOS 
an open had been dropped

see https://github.com/jcupitt/libvips/issues/1004
 2018-06-13 21:33:52 +01:00
John Cupitt
581e0178d2 tiffsave has region_shrink param 
for new pyr shrink stuff
 2018-06-13 18:16:03 +01:00
John Cupitt
a373d2c876 add changelog notes for region_shrink 2018-06-13 17:36:36 +01:00
John Cupitt
8a8a093523
Merge pull request #915 from harukizaemon/region-shrink-method 
WIP: Adds a region shrink method
 2018-06-13 17:15:03 +01:00
John Cupitt
2c7684669f
Merge branch 'master' into region-shrink-method 2018-06-13 17:13:16 +01:00
John Cupitt
539cc0616c Merge branch '8.6' 2018-06-13 16:24:20 +01:00
John Cupitt
e6edcfe20d improve accuracy of vector path 2018-06-13 16:23:21 +01:00
John Cupitt
eac314b4a2
Merge pull request #1003 from felixbuenemann/fix-convolution-posterization 
Fix convolution vector path posterization
 2018-06-13 16:22:39 +01:00
Felix Bünemann
2041deb917 Fix convolution vector path posterization 
This fixes posterization in the vector path for convolution caused by a
typo in commit eefb2dad98.

The fix was suggested by @jcupitt.
 2018-06-13 17:18:55 +02:00
John Cupitt
4951040c53
Merge pull request #1002 from janko-m/fix-missing-addalpha-doc 
Fix missing vips_addalpha() docs
 2018-06-13 15:45:54 +01:00
Janko Marohnić
d3faada6f3
Fix missing vips_addalpha() docs 2018-06-13 11:17:45 +02:00
John Cupitt
3b1e3e1841 add Mitchell kernel 
see https://github.com/jcupitt/libvips/issues/966
 2018-06-12 12:55:10 +01:00
John Cupitt
cc29a13cc7 revise composite position code slightly 
- move x/y into composite and out of composite base, have separate x/y int
params for composite2
- upsize later for a small speed improvement
- doc comment
- note in changelog

see https://github.com/jcupitt/libvips/pull/934
 2018-06-11 17:04:29 +01:00
John Cupitt
8693179ef2
Merge pull request #934 from medakk/compositexy 
Adding x,y arguments to vips_composite
 2018-06-11 16:00:29 +01:00
John Cupitt
0e3cac1a72 make cpp overloads const 
all overloads are declared const now, where possible

also revised cpp examples and ran them to check

see https://github.com/jcupitt/libvips/issues/983
 2018-06-11 15:24:11 +01:00
John Cupitt
ca6410e1a6 make members and getters "const" in cpp api 
eg. VImage::width() is now

	int VImage::width() const;

ie. it does not alter the image objects. In factr we can mark almost all
members const.

see https://github.com/jcupitt/libvips/issues/983
 2018-06-11 14:30:17 +01:00
John Cupitt
87b3f17846 vips7 API defaults off 2018-06-11 12:44:28 +01:00
John Cupitt
d70c2cd918 revise README for deprecated py7 and py8 
now the two older python bindings are deprecated and disabled by
default, remove notes about them from README.
 2018-06-11 12:23:18 +01:00
John Cupitt
af47ba964a fix make dist 2018-06-10 16:58:05 +01:00
John Cupitt
0d8a440aff fix build with magick7 2018-06-10 12:15:02 +01:00
John Cupitt
fb64d3607a add @background option to pdfload 
Add a "background" option to pdfload to help support PDFs with a
transparent background. For example:

	vips copy transparent.pdf[background=0] x.png

see https://github.com/jcupitt/libvips/issues/995
 2018-06-08 10:28:00 +01:00
John Cupitt
495e0b2d14 bump svg header size to 1000 bytes 
see https://github.com/jcupitt/libvips/pull/543
 2018-06-06 08:17:08 +01:00
John Cupitt
5ec605c98c Merge branch '8.6' 2018-06-01 23:05:16 +01:00
John Cupitt
a3394dc756 fix webp metadata save with webpmux 
see https://github.com/jcupitt/libvips/pull/989
 2018-06-01 23:01:33 +01:00
John Cupitt
abdd0b977c
Merge pull request #989 from lovell/webp-metadata 
Ensure WebP can add metadata when compiled with libwebpmux
 2018-06-01 22:33:55 +01:00
Lovell Fuller
8e658d3a06 Ensure WebP can add metadata when compiled with libwebpmux 2018-06-01 20:35:16 +01:00
John Cupitt
892fa2eeba Merge branch 'master' of github.com:jcupitt/libvips 2018-06-01 19:46:42 +01:00
John Cupitt
e9aaedc60a fix some compiler warnings 
from the msvc patch
 2018-06-01 19:44:43 +01:00
John Cupitt
0c8552d3fc fix some compiler warnings 
from the MSVC patches, and add a changelog line
 2018-06-01 16:02:09 +01:00
John Cupitt
364a5daafc
Merge pull request #988 from angelmixu/vs2017 
Fixes for being able to build libvips in Visual Studio 2017 with an external project
 2018-06-01 12:43:58 +01:00
Angel Sánchez
7125608904 WinSDK stdlib.h has only abs function for int, long, long long and __int64 parameteres, cstdlib has the abs function with a double parameter 2018-05-31 14:00:35 +02:00
Angel Sánchez
258311cec2 performing arithmetic on a void* is not in the standard C, GCC uses an extension for using it, in VS2017 this is non-existant, so the recommended way is to cast to char* to perform increments on the pointer 2018-05-31 13:53:31 +02:00
Angel Sánchez
3282e464a1 added DLL export macro for exporting symbols in VS2017 2018-05-31 13:51:21 +02:00
Angel Sánchez
256cf494a3 use VIPS_PI instead of M_PI as the former is already defined, added missing includes with their macro protection 2018-05-31 13:50:50 +02:00
John Cupitt
86a1a0a7e2 Merge branch '8.6' 2018-05-29 19:30:46 +01:00
John Cupitt
7e95ae514d don't use ping in magickload 
too unreliable, sadly
 2018-05-29 19:29:11 +01:00
John Cupitt
0486218ff5 don't use Ping in magickload 
it's too unreliable :-( we are forced to read every time
 2018-05-29 17:20:46 +01:00
John Cupitt
d251b37d92 add vips_argument_get_id() 
We had a global we incremented to allocate property ids, but of course that
won't work with DLLs. Instead, add vips_argument_get_id() and call that to
allocate new prop ids.

See:

https://github.com/jcupitt/libvips/issues/985
 2018-05-29 16:49:20 +01:00
John Cupitt
4058312aee fix a TGA ping crash 
see https://github.com/jcupitt/libvips/issues/980
 2018-05-25 16:40:50 +01:00
John Cupitt
73a55e0322 update ChangeLog 2018-05-25 16:06:05 +01:00
John Cupitt
1a95b2df89 fix tga header read 
When you ping() an image with imagemagick to get the header, some format
loaders (eg. TGA) don't set all the fields. In this case,
image->colormap was not set and that made GetImageChannelDepth() crash.

Work around this, at least in this case, by allocating a colourmap
ourselves if none is set.

see https://github.com/jcupitt/libvips/issues/980
 2018-05-25 16:02:25 +01:00