Add .tif format #117

[geekdenz]

No description provided.

[dbouron]

Hello @geekdenz,
Thank you for enhancing this project. In fact, you cannot enable the tiff format only though this enum.
You have to integrate the libtiff library into the build system.
I will try to have a closer look this week end on how libvips use this library.
A good pointer to check what libtiff needs is to take a look on the build-win64 config file.

[geekdenz]

Thanks for your quick reply @dbouron !

I believe when you install the library Vips on Linux with apt-get install libvips42 it might have tif support already. Otherwise, wouldn't there be an easy apt-get install <package> that can be installed to enable that?

[geekdenz]

The first example here:
https://www.libvips.org/API/current/file-format.html
uses tif. Am I missing something?

[geekdenz]

Just ran it on this example with no problem:

Command:
vips invert sample_1280×853.tiff inverted.tif

[dbouron]

I believe when you install the library Vips on Linux with apt-get install libvips42 it might have tif support already. Otherwise, wouldn't there be an easy apt-get install <package> that can be installed to enable that?

Yes, you are right if you have a minimal build of JVips. It will not build external dependencies and use the ones installed on the system.
But we have to specify how to build and link libtiff to libvips for the jar build with embedded libraries.

[dbouron]

Hi,
I did this PR for the tiff support. I will merge tomorrow if the main build workflow passed :)
Feel free to review / comment my commit before merging.

[dbouron]

I just merged #119. Closing this PR