These days I am working on a project which uses the Anti-Gravity Geometry library. There is an old version available on os4depot and I wanted to make an updated one with the latest source code from https://sourceforge.net/projects/agg.

There is a makefile for AmigaOS 4, created by Steven Solie, who did the original port. This makefile uses clib2, but I managed to compile the library with newlib without any issues.

The thing is that there is a platform-specific file (agg_platform_support.cpp) which uses Picasso96 libraries, so I decided to convert it to use the graphic v54 library.

I moved the latest SVN code to my git at https://git.walkero.gr/walkero/agg and made all the necessary changes in the file above, so to remove the Picasso96. You can see the changes at the following pull request.

https://git.walkero.gr/walkero/agg/pulls/1/files

Please scroll down to the src/platform/AmigaOS/agg_platform_support.cpp file.

With those changes, I can compile and run most of the examples just fine, but I am afraid that I possibly missed something. You see, I have never before done such work and I'd love if anyone could have a look at it.

My questions are:
1. Is anyone here familiar with replacing Picasso96 methods with the latest graphics library ones, that could have a look at my code and give me some feedback?
2. I wonder if there is a way to use the graphics card so to make the result graphics even faster. Is this something that needs to be done in the library or it is a matter of the application that uses agg? And if this needs to be done in the library, what should I check on how to do it?

Thank you all for your help.