How do you build a C Plugin?

Neo · **Joined:** Aug 06, 2016 **Posts:** 3

GIMP Version: 2.8.14
Operating System: Windows
OS Version: 7
GIMP Experience: New User

Cheers!
I'm new around here and hope someone can help me with this.
A while back, I wanted to remove the blur effect from the warp filter, so I dug through the source code a bit and commented it out. But I couldn't build the plugin. I got gimptool, I think/hope I had all the dependencies(???) but I got an error when I tried to run it. Just Windows telling me that an error occurred but nothing about what or why it happened.
Therefore, I'd like to try this again from scratch.
What do I need to build the plugin? Where do I download it? Where do I put it?
I'm relatively new to plugin development and no good with console applications, so please explain it to me like I'm a total dummy!

MareroQ · **Posted:** Sat Aug 06, 2016 1:25 pm **(#2)**

The first step - compiled GIMP?
Guide:
http://wiki.gimp.org/wiki/Hacking:Building/Windows
Send source code - I try to compile... :roll:

Neo · **Joined:** Aug 06, 2016 **Posts:** 3

MareroQ wrote:

The first step - compiled GIMP?
Guide:
[...]
Send source code - I try to compile... :roll:

I use the packaged GIMP for Windows, if that's your question.
I came across this article before but it doesn't help me because I don't see why I should compile the entire program when all I want to do is build a single plugin. Especially, since according to what I read, it is entirely possible to build single plugins. So, please explain.

I cannot send you the source code because, apparently, this forum doesn't allow c or txt extensions and as a new user I'm not allowed to post external links... :gaah

Anyway, it's really just warp.c with the blur function calls in line 1177 and 1180 commented out.

Code: Select all

  gimp_progress_init (_("Smoothing X gradient"));
  //blur16(draw_xd);

  gimp_progress_init (_("Smoothing Y gradient"));
  //blur16(draw_yd);

Not sure if 1176 and 1179 need to be commented out, too.

And I changed the define lines 76 - 78:

Code: Select all

#define PLUG_IN_PROC    "plug-in-warp-no-blur"
#define PLUG_IN_BINARY  "warp-no-blur"
#define PLUG_IN_ROLE    "gimp-warp-no-blur"

MareroQ · **Posted:** Sun Aug 07, 2016 8:22 am **(#4)**

Hi Neo.

Gimptool requires a lot of dependence.
Your experimental plugin in annex (You can add *.zip after 3 posts).

Neo · **Joined:** Aug 06, 2016 **Posts:** 3

Thank you, MareroQ!
Too bad it doesn't work the way I wanted. Well, it works in a sense that it works just like warp. But it's not pixel-perfect as I wanted it.
Still, thanks for taking your time to help me.

MareroQ · **Posted:** Mon Aug 08, 2016 3:22 am **(#6)**

You have to change the code (I can not :oops:

).
The compilation takes less than a minute :bump

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