Vulkan: Shaders are not cached to disk

[ehw]

Bug Description

The OpenGL backend supports caching shaders to disk. However, Vulkan doesn't have this capability (yet). It was on the roadmap in the original PR, but I'm making an issue on the tracker to keep track of it.

Expected Behavior

Vulkan should have feature parity with OpenGL. Having shaders cached to disk might help with some games that have performance issues, at least as far as microstuttering is concerned during shader compilation.

xemu Version

Version: 0.8.8
Branch: master
Commit: ebcacad
Date: Thu Jan 9 22:51:04 UTC 2025

System Information

CPU: AMD Ryzen 7 5800X 8-Core Processor
OS Platform: Windows
OS Version: 22H2
Manufacturer: NVIDIA Corporation
GPU Model: NVIDIA GeForce RTX 3080/PCIe/SSE2
Driver: 4.0.0 NVIDIA 566.36
Shader: 4.00 NVIDIA via Cg compiler

Additional Context

No response