cffi
trial
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cffi | trial | |
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16 | 10 | |
416 | 832 | |
1.7% | 6.4% | |
4.0 | 9.9 | |
about 1 month ago | 4 days ago | |
Common Lisp | Common Lisp | |
MIT License | zlib License |
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cffi
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A few newbie questions about lisp
When you want to do anything that breaks the nice bubble of your Lisp image, you might want to know a bit about your operating system's programming interface. This will come in handy if you ever need to wrap a library with CFFI. There are some things that are pretty inconvenient as a rule (like dealing with any protocol that uses network byte order), but if you stay within the bubble of your Lisp image, you won't really notice them.
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*UPDATE* - CL-OBJC
I'm just posting the work that I have done over the last year or so on CL-Objc. I'm still blocked from better support (e.g., passing structs by value for frameworks like UIKit). I just wanted to post what I have done online for others interested in the work or motivated to collaborate on this.
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Waiting on feedback - CFFI PR
Good morning ladies and gentlemen, I have been waiting on some feedback for PR in CFFI. This feature is blocking me from reviving CL-OBJC. Any help will be appreciated. Thank you in advance.
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Anyone else able to kill threads in SBCL on M1 mac?
Is that actually https://github.com/cffi/cffi/commit/33970351e71bb5f12ba56fc40270089e948ae112 ? I.e. after loading cl+ssl. (Although Hunchentoot does not interrupt threads)
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Programming the Raspberry Pi GPIO pins using Common Lisp?
Maybe access the pins using CFFI, https://github.com/cffi/cffi package and one the libraries mentioned here? https://www.bigmessowires.com/2018/05/26/raspberry-pi-gpio-programming-in-c/
- Why Functional Programming Should Be the Future of Software
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Updating Quicklisp Packages
FTR, on my system QL fetches CFFI 0.23.0 and the fix/error I'm talking about is https://github.com/cffi/cffi/blob/master/src/libraries.lisp#L106 and seems to have been added iin this PR https://github.com/cffi/cffi/pull/173/commits/263b38f4f2600dbacde8f2b313620c35a563c6df so the fix should be in CFFI 0.24.0 released 24 March 2021.
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CFFI and frameworks on OSX
FTR: this is the PR https://github.com/cffi/cffi/pull/173/commits/263b38f4f2600dbacde8f2b313620c35a563c6df
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interested in learning lisp, (specifically for games, but also for everything else including tui and gui applications for linux. currently have next to no programming knowledge, can i get forwarded some resources and some tips on what exactly i should do? any videos i should watch?
C: Alternatively (more difficult) you could try to wrap the underlying C layers of either of those mentioned under Python with CFFI. The C-based game engine, Raylib, is also wrappable this way. I finished a super cool walking simulator in CL with that, but it is more tedious than the others since raylib is really barebones.
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Common Lisp
I feel inspired to start Lisp after being disappointed with the "open" source scene of 2021. I'd rather pay LispWorks a yearly fee and be left alone than dealing with unbalanced people in the Python space. The free Lisp implementations also look somewhat isolated from the ideological wars.
However, a C interface is required. Is this one the recommended solution? Is it really portable?
https://common-lisp.net/project/cffi/
What is the speed compared to a Python C extension? Are implementation-specific C interfaces faster (I guess they are)?
Sorry for so many questions, but these can usually only be answered by people who have actually used the interface.
trial
- Trial Game Engine Issue
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Submissions to Spring Lisp Game Jam 2023
Little Spark - made with Trial
- Show HN: Kandria, an action RPG made in Common Lisp is now out
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Kandria, an action RPG written in Common Lisp releases in a week on January 11!
The engine is called Trial. https://github.com/shirakumo/trial.
- Lisp-Stick on a Python
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interested in learning lisp, (specifically for games, but also for everything else including tui and gui applications for linux. currently have next to no programming knowledge, can i get forwarded some resources and some tips on what exactly i should do? any videos i should watch?
I don't know what the situation is like for 3D game programming in CL. Shinmera recently kickstarted a game but it's 2D I think and I don't know if his engine (https://github.com/Shirakumo/trial) does 3D. But regardless of what you're using, going into learning how to program while also trying to learn how to use the game engines available in the CL world will probably be a recipe for getting overwhelmed and discouraged. I'd recommend going through the Steve Losh post first and reading A Gentle Introduction to Symbolic Computation and/or Practical Common Lisp to get some solid general familiarity with using CL. Both are available online for free. You can also browse through the Cookbook: https://lispcookbook.github.io/cl-cookbook/
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Common lisp game development libraries
For graphics there's a lot of different variants and options. I use Trial, but that doesn't have any docs yet, I'm afraid.
- Trial: A fully-fledged Common Lisp game engine
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Our Lisp game, Eternia: Pet Whisperer is now out on Steam!
Kandria and Eternia both are built on top of the game engine Trial, which I and a few others at Shirakumo have been working on for some years now. Trial itself makes use of a bunch of lower level libraries like cl-opengl, GLFW, pngload, harmony, etc. but a huge amount of the codebase was written by me. If you're interested in its development, I recommend hopping by the #shirakumo channel on the Freenode IRC network. I'd be happy to answer questions there!
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Idiomatic way to handle non GC objects, i.e. OpenGL textures ?
A good way to do it is to keep a staging area of sorts that keeps track of the manually allocated objects and their state. When you allocate you batch all objects to allocate together and then execute the load in one go, updating the records in the staging area. Then, when you're ready to switch to a different scene or whatever, you diff the staging area against the current set of objects that need to be live and deallocate everything else in one go.
What are some alternatives?
cl-autowrap - (c-include "file.h") => complete FFI wrapper
raylib - A simple and easy-to-use library to enjoy videogames programming
go-ffi - Go bindings to libffi
ulubis - A Wayland compositor written in Common Lisp
racket - The Racket repository
Panda3D - Powerful, mature open-source cross-platform game engine for Python and C++, developed by Disney and CMU
cl-parametric-types - (BETA) C++-style templates for Common Lisp
trivial-gamekit - Simple framework for making 2D games
paip-lisp - Lisp code for the textbook "Paradigms of Artificial Intelligence Programming"
magnum - Lightweight and modular C++11 graphics middleware for games and data visualization
cl-cookbook - The Common Lisp Cookbook
Fennel - Lua Lisp Language