LLVMpipe Software OpenGL Implementation Picks Up More GL4 Extensions

[phoronix]

Phoronix: LLVMpipe Software OpenGL Implementation Picks Up More GL4 Extensions

It's 2019 and OpenGL 4.6 remains the latest version of this once predominant graphics API yet Mesa's Gallium3D LLVMpipe software rasterizer is still only exposing OpenGL 3.3...

http://www.phoronix.com/scan.php?page=news_item&px=LLVMpipe-Shader-Buffer-Atomic

[xxmitsu]

I think the goal here for llvmpipe will be OpenGL ES, rather than GL4.

[treba]

The Webrender devs are experimenting in using LLVMpipe as the software fallback with WR so they can enable it everywhere. I hope these plans pan out, so there's only a single render path to care for.

https://mozillagfx.wordpress.com/201...newsletter-46/

[uid313]

Maybe LLVMpipe can also be used by GPU based on the RISC-V instruction set architecture.

Maybe LLVMpipe can use AVX2 and AVX-512 on x86, and AltiVec on POWER?

[airlied]

Maybe LLVMpipe can also be used by GPU based on the RISC-V instruction set architecture.

Maybe LLVMpipe can use AVX2 and AVX-512 on x86, and AltiVec on POWER?

It tries to do this already.

[uid313]

Oh, this SWR seems to have much better performance than LLVMpipe.

[patstew]

AFAIK OpenSWR is designed specifically for *huge* scientific workloads with vast numbers of verticies that don't fit into GPU memory, llvmpipe is supposed to be better for games and desktop class stuff. It also requires AVX, so it's useless as a fallback renderer.

[pal666]

Maybe LLVMpipe can also be used by GPU based on the RISC-V instruction set architecture.

llvmpipe runs on host, not on gpu
in any case, gpu based on the risc-v is not going to fly

[uid313]

llvmpipe runs on host, not on gpu
in any case, gpu based on the risc-v is not going to fly

Well, some seem to think otherwise and pursuing exactly that.

https://www.phoronix.com/scan.php?page=news_item&px=Libre-RISC-V-February-Designing

[Guest]

I wish LLVMpipe didn't require so much messing around to get it to report itself as compatible with modern OpenGL. I had to hunt down quite a few environment variables scattered around different places to get Doom 2016 to start on my core 2 duo box. Too bad I can't put enough RAM into it to get it to not crash before reaching the main menu.