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macOS: auto-discover bundled MoltenVK on startup

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On macOS the Vulkan loader comes from MoltenVK. SDL's default
probe only searches system paths, so a bundled libMoltenVK.dylib
next to the executable is invisible under the hardened runtime.

Probe it explicitly via SDL_GetBasePath() before falling back to
SDL's default search. Respect SDL_VULKAN_LIBRARY overrides and
log which loader is used. Update README to reflect that no
environment variable is required for bundled builds.

Co-Authored-By: internal-model
This commit is contained in:
nacimoualla
2026-08-29 12:02:50 +01:00
parent 9da390bc0a
commit 85a5c04860
2 changed files with 31 additions and 4 deletions
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README.md
+9 -4
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@@ -288,12 +288,17 @@ The emulator can also be started directly with a legally obtained game directory
./_Build/linux/install/kyty_emulator --game "/games/ExampleGame"
```
On macOS, point SDL at the MoltenVK library explicitly; the hardened runtime prevents it from
being picked up from the executable's directory:
On macOS, a bundled `libMoltenVK.dylib` next to `kyty_emulator` is found automatically; no
environment variable is required:
```bash
cd _Build/macos/install
SDL_VULKAN_LIBRARY="$PWD/libMoltenVK.dylib" ./kyty_emulator --game "/games/ExampleGame"
./_Build/macos/install/kyty_emulator --game "/games/ExampleGame"
```
To override the Vulkan loader, set `SDL_VULKAN_LIBRARY`:
```bash
SDL_VULKAN_LIBRARY=/path/to/libMoltenVK.dylib ./kyty_emulator --game "/games/ExampleGame"
```
Run `kyty_emulator --help` to see the available graphics, logging, validation, profiling, and