GL framebuffer fetch behavior

2025-04-23 Thread Mike Blumenkrantz
Hi, An issue recently came up in the GL working group: what is the robustness behavior of framebuffer fetch? For example, if a framebuffer attachment format is R8_UNORM, what are the YZW components which get read back? If people from all the drivers (besides panfrost) which support this extension

Re: GL framebuffer fetch behavior

2025-04-23 Thread Iago Toral
For v3d yzw would be 0,0,1. Iago El mié, 23-04-2025 a las 12:24 -0400, Mike Blumenkrantz escribió: > Hi, > > An issue recently came up in the GL working group: what is the > robustness behavior of framebuffer fetch? For example, if a > framebuffer attachment format is R8_UNORM, what are the YZW

[ANNOUNCE] mesa 25.1.0-rc2

2025-04-23 Thread Eric Engestrom
Hello everyone, I'm happy to announce the next release candidate, 25.1.0-rc2. As always, if you find any issues please report them here: https://gitlab.freedesktop.org/mesa/mesa/-/issues/new Any issue that should block the release of 25.1.0 final, thus adding more 25.1.0-rc* release candidates,

Re: GL framebuffer fetch behavior

2025-04-23 Thread Marek Olšák
AMD lowers it to an image load, which follows the rules for image views, so (x, 0, 0, 1) for R8_UNORM. Marek On Wed, Apr 23, 2025 at 12:25 PM Mike Blumenkrantz < michael.blumenkra...@gmail.com> wrote: > Hi, > > An issue recently came up in the GL working group: what is the robustness > behavior

Announcement: 2025 X.Org Foundation Election Candidates

2025-04-23 Thread Mark Filion
To all X.Org Foundation Members: The election for the X.Org Foundation Board of Directors will begin on 30 April 2025. We have five candidates who are running for four seats. They are (in alphabetical order): * Andres Gomez * Arkadiusz Hiler * Megan Knight * Lyude Paul * Harry Wentland Atta

Re: GL framebuffer fetch behavior

2025-04-23 Thread Faith Ekstrand
NVIDIA is a texelFetch, so (x, 0, 0, 1) Intel is a TexelFetch pre-SKL. I'm not sure what it is for SKL+. Probably (x, 0, 0, 1) but it's been a while. ~Faith On Wed, Apr 23, 2025 at 1:11 PM Marek Olšák wrote: > AMD lowers it to an image load, which follows the rules for image views, > so (x, 0