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List:       mesa3d-dev
Subject:    [Mesa-dev] Mesa Querying Devices Filter
From:       Stephen Crowell <stephen.crowell () kitware ! com>
Date:       2021-10-26 17:38:35
Message-ID: CAHqFCOoDCdyZEhzbFaiTMxOeQG10_5FZesTktkv60Yt2fi_Xzw () mail ! gmail ! com
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To whom it may concern,

I am attempting to use Mesa with EGL for a project and I have run into an
issue when initializing a device. My setup uses a surfaceless platform with
swrast as the gallium driver.

When I query for devices to initialize (using eglQueryDevices), the first
device listed is the driver for my GPU (nouveau) and the other devices are
the devices I want to initialize (swrast, swr, etc). My project currently
loops through all possible devices and initializes each one. Once one is
initialized properly, the program continues.

I was wondering if there is a way to filter out devices (like drivers for
GPU). This would make the output of my program more readable and also save
time by not initializing devices that will not work.

Also as a side note, why does Mesa query for my GPU drivers in the first
place? The only driver I specify to use is swrast and I am not sure why my
GPU driver is being found.

Best Regards,
Stephen Crowell

[Attachment #3 (text/html)]

<div dir="ltr"><div>To whom it may concern,</div><div><br></div><div>I am attempting \
to use Mesa with EGL for a project and I have run into an issue when initializing a \
device. My setup uses a surfaceless platform with swrast as the gallium driver. \
<br></div><div><br></div><div>When I query for devices to initialize (using \
eglQueryDevices), the first device listed is the driver for my GPU (nouveau) and the \
other devices are the devices I want to initialize (swrast, swr, etc). My project \
currently loops through all possible devices and initializes each one. Once one is \
initialized properly, the program continues.<br></div><div><br></div><div>I was \
wondering if there is a way to filter out devices (like drivers for GPU). This would \
make the output of my program more readable and also save time by not initializing \
devices that will not work.</div><div><br></div><div>Also as a side note, why does \
Mesa query for my GPU drivers in the first place? The only driver I specify to use is \
swrast and I am not sure why my GPU driver is being \
found.</div><div><br></div><div><div><div dir="ltr" \
data-smartmail="gmail_signature"><div dir="ltr"><div>Best Regards,</div><div>Stephen \
Crowell</div></div></div></div></div></div>



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