Mirrors/Ryujinx
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Shader: Add fallback for LDG from "ube" buffer ranges. (#4027)

Browse source 
We have a conversion from LDG on the compute shader to a special constant buffer binding that's used to exceed hardware limits on compute, but it was only running if the byte offset could be identified. The fallback that checks all of the bindings at runtime only checks the storage buffers.

This PR adds checking ube ranges to the LoadGlobal fallback. This extends the changes in #4011 to only check ube entries which are accessed by the shader.

Fixes particles affected by the wind in The Legend of Zelda: Breath of the Wild. May fix other weird issues with compute shaders in some games.

Try a bunch of games and drivers to make sure they don't blow up loading constants willynilly from searchable buffers.
This commit is contained in:
riperiperi 2022-12-06 23:15:44 +00:00 • committed by GitHub
parent e211c3f00a
commit f23b2878cc
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
6 changed files with 108 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

5
Ryujinx.Graphics.Shader/Translation/Optimizations/Optimizer.cs
View file

@ -12,16 +12,17 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
RunOptimizationPasses(blocks);
int sbUseMask = 0;
int ubeUseMask = 0;
// Those passes are looking for specific patterns and only needs to run once.
for (int blkIndex = 0; blkIndex < blocks.Length; blkIndex++)
{
GlobalToStorage.RunPass(blocks[blkIndex], config, ref sbUseMask);
GlobalToStorage.RunPass(blocks[blkIndex], config, ref sbUseMask, ref ubeUseMask);
BindlessToIndexed.RunPass(blocks[blkIndex], config);
BindlessElimination.RunPass(blocks[blkIndex], config);
}
config.SetAccessibleStorageBuffersMask(sbUseMask);
config.SetAccessibleBufferMasks(sbUseMask, ubeUseMask);
// Run optimizations one last time to remove any code that is now optimizable after above passes.
RunOptimizationPasses(blocks);