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Looks like Feral Interactive are doing more work on Mesa

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The recent Mesa release of Mesa 17.0.0 included a patch from a Feral Interactive developer, but Feral aren't stopping there. Another developer from Feral has had two patches accepted into Mesa-git today.

It looks like these help with Intel's Vulkan driver 'anv'.

The two patches add support for 'shaderStorageImageWriteWithoutFormat':
QuoteThis allows shaders to write to storage images declared with unknown format if they are decorated with NonReadable ("writeonly" in GLSL).

And also 'SpvCapabilityStorageImageWriteWithoutFormat':
QuoteAllow that capability if the driver indicates that it is supported, and flag whether images are read-only/write-only in the nir_variable (based on the NonReadable and NonWritable decorations), which drivers may need to implement this.

It seems the Mesa developers were happy to see these patches too, as they were thanked on the mailing list by another Mesa developer who reviewed and accepted the patches.

Good to see Feral getting their hands dirty in helping to improve Mesa. Article taken from
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I am the owner of GamingOnLinux. After discovering Linux back in the days of Mandrake in 2003, I constantly came back to check on the progress of Linux until Ubuntu appeared on the scene and it helped me to really love it. You can reach me easily by emailing GamingOnLinux directly.
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fabry92 14 Feb, 2017
this patches help both amd and nvidia opensource?
tuubi 14 Feb, 2017
Awesome to see Feral working on Mesa, and doubly awesome seeing them take an interest in Vulkan drivers. I guess they really are releasing their first Vulkan port soon.

Last edited by tuubi on 14 February 2017 at 6:45 pm UTC
Liam Dawe 14 Feb, 2017
Quoting: fabry92this patches help both amd and nvidia opensource?
They are for the Intel 'anv' Vulkan driver.
jsa1983 14 Feb, 2017
Oh, man, these guys should be renamed to "The fierce ferals" :D

Pretty excited looking forward to that Vulkan game!
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