cl-pixman

cl-pixman is a Common Lisp wrapper for pixman written on CFFI. Pixman is a portable library for low-level pixel manipulation.

I wrote this wrapper to have an alternative to SDL2 blitting for low-level pixel operation. It directly uses CFFI pointers to avoid. Supported API is minimal (only pixman_image_* API is partially implemented) so feel free to contribute.

It is licensed under the LLGPL.

Installation

If you are using quicklisp:

cd <your quicklisp directory>/local-projects/  
git clone <me>  

Then you can just

(ql:quickload "pixman")

in your REPL.

You'll need a pixman shared object accessible to your Lisp at runtime, if you are using GNU, you can use your distro package.

Tested platforms

• SBCL 1.3.19 on GNU/Linux on amd64.
• CCL 1.11-r16635 on macOS 10.12.5 on amd64 through virtual machine.
• CCL 1.11-r16635 on Windows 7 on amd64 (pixman.dll built from VS 2017).
• LispWorks® 6.1 Personal Edition x86 on GNU/Linux on amd64.

TODO list

• 32bits functions and structures
• Floating point matrices
• Image accessors callbacks and indexed images
• pixman_filter_create_separable_convolution, pixman_image_fill_rectangles, pixman_image_fill_boxes
• Glyphs
• Trapezoids
• Examples and tests
• Simple fixed-point computations?