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From: Thomas Petazzoni via buildroot <buildroot@buildroot.org>
To: "J. Neuschäfer" <j.neuschaefer@gmx.net>
Cc: "J. Neuschäfer via buildroot" <buildroot@buildroot.org>,
	"Angelo Compagnucci" <angelo.compagnucci@gmail.com>,
	"Grzegorz Blach" <grzegorz@blach.pl>,
	"James Hilliard" <james.hilliard1@gmail.com>
Subject: Re: [Buildroot] [PATCH RFC 1/2] package/python-pillow: install libImaging headers
Date: Sun, 28 Dec 2025 20:09:32 +0100	[thread overview]
Message-ID: <20251228200932.7e958db3@windsurf> (raw)
In-Reply-To: <aVF8lcjpAKr1uOQa@probook>

On Sun, 28 Dec 2025 19:53:09 +0100
J. Neuschäfer <j.neuschaefer@gmx.net> wrote:

> Pretty much. python-pillow is a Python module, but it's partially
> implemented in C. python-rgbmatrix (the Python module for the
> rpi-rgb-led-matrix C++ library) accesses internal state of objects
> created by python-pillow. There is no direct linking, both native
> libraries exist in the same process because they are loaded as part of
> their respective Python modules. Prior to this commit, python-rgbmatrix
> included its own definition of struct ImagingMemoryInstance (called
> PillowImagingInstance). With this commit, pillow's Imaging.h is included
> to get the struct layout and ultimately the offset of the "image32"
> member.

Awesome explanation, thanks a lot! Could you copy/paste this into the
commit message?

Thanks!

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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  reply	other threads:[~2025-12-28 19:09 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-26 16:07 [Buildroot] [PATCH RFC 0/2] Update package/rpi-rgb-led-matrix J. Neuschäfer via buildroot
2025-12-26 16:07 ` [Buildroot] [PATCH RFC 1/2] package/python-pillow: install libImaging headers J. Neuschäfer via buildroot
2025-12-27 23:14   ` Thomas Petazzoni via buildroot
2025-12-28 18:53     ` J. Neuschäfer via buildroot
2025-12-28 19:09       ` Thomas Petazzoni via buildroot [this message]
2025-12-26 16:07 ` [Buildroot] [PATCH RFC 2/2] package/rpi-rgb-led-matrix: update to latest git version (2025-12-22) J. Neuschäfer via buildroot

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