sdlmame.lngn.net 215 build:
- hlsl compiles successfully on all bgfx backends (opengl, gles, metal).

my local build and chocyhobnob 215 build:
- hlsl compiles successfully for: opengl
- hlsl fails to compile for: metal and gles

I've noticed in all cases where hlsl successfully compiles that it appears to not be honoring the monitor rotation setting, at least for Galaga. The Galaga scanlines appear horizontal instead of vertical like they should be...