[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH v2] ui/cocoa: Fix stride resolution of pixman image
From: |
Gerd Hoffmann |
Subject: |
Re: [PATCH v2] ui/cocoa: Fix stride resolution of pixman image |
Date: |
Wed, 24 Feb 2021 12:23:07 +0100 |
On Mon, Feb 22, 2021 at 11:40:12PM +0900, Akihiko Odaki wrote:
> A display can receive an image which its stride is greater than its
> width. In fact, when a guest requests virtio-gpu to scan out a
> smaller part of an image, virtio-gpu passes it to a display as an
> image which its width represents the one of the part and its stride
> equals to the one of the whole image.
Probably not limited to virtio-gpu. Wayland rounds display framebuffers
to the next multiple of 64, so when running -- for example -- 800x600
wayland will create an image 832 pixels wide. Other UIs had simliar
issues.
Patch added to UI patch queue.
thanks,
Gerd