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!
and replace old unused and poorly named FIND_ZIP. The new code prefers
pkgconfig and only falls back to manual detection if needed.
This also prioritizes detected zlib flags and includes to be preferred
over the ones that are added by pkgconfig for libpng, tifflib etc. which
would otherwise have caused the system default zlib to be used.
- rename compression_level as deflate_level to match libgsf convention
- use libgsf enums for GSF_ZIP_STORED, etc.
- configure-time checks for zip64 and deflate-level
- off-topic: rename NEED_TYPE_INIT as HAVE_TYPE_INIT for consistency
This is the first version that works properly with gtk3. Lowering the
requirement enables SVG support on older Linux distributions like
Ubuntu Precise LTS or Debian Wheezy.
* Do not warn when the prefix appears to be a homebrew cellar.
* Fix configure errors when python is not detected
* Fix configure errors when pygobject is installed in prefix but
not present in the python `sys.path`.
* Use the actual overrides path, instead of the gi module path.
The python.m4 that ships with automake hardcodes the library path for
platfrom dependent files to `lib`, which is wrong for multiarch systems.
Instead we import the `m4/python.m4` from pygobject, which does not have
this problem and also ensures we have the same behavior as pygobject
which we are depending on for pyvips8.
Due to this change some minor changes to how the `bootstrap.sh` script
clean up the `m4` folder where needed.
The python search order has been modified to prefer the default python
over python2 over python3.
This fixes the poppler-glib version requirement to version 0.16, which
is the lowest version that compiles and works properly with pdfload.
Also added a check for pdfload and enabled testing on Travis CI.
* Add configure check for libwebp >= 0.1.3
* Add custom memory writer using GNOME memory allocation
* Add various ABI checks and warnings for unsupported features:
** smart_subsample and near_lossless require 0.5.0
** lossless requires at least 0.1.99
GM is still using the old page interface of subimage/subrange, IM has
deprecated that in favour of scene/number_scenes
we were accidentally just supporting the new IM system ... this change
adds support for GM as well, plus a configure test to pick one
see https://github.com/jcupitt/libvips/issues/423
