Update core to 1.17.1

[WingofaGriffin]

Quite a bit has changed since (a lot is irrelevant to mac builds though). It does seem that there is a decent amount for ARM performance though, which should likely do better for OpenEmu.

hrydgard/ppsspp@v1.14.4...v1.17.1

[MaddTheSane]

The main problem is that, due to Apple dropping OpenGL at 4.1, the hacks needed to make PPSSPP are reaching a head.

Good news is that Vulkan is a possible choice. The bad news is that OpenEmu doesn't support Vulkan yet.

[WingofaGriffin]

The main problem is that, due to Apple dropping OpenGL at 4.1, the hacks needed to make PPSSPP are reaching a head.

Good news is that Vulkan is a possible choice. The bad news is that OpenEmu doesn't support Vulkan yet.

Hm. I could have sworn PPSSPP had MoltenVK support, though I guess this exposes my lack of experience with low level graphics APIs. Is there something about OpenEmu that is currently incompatible with MoltenVK, or is that the support you were referencing?

[MaddTheSane]

Due to how OpenEmu is architected, rendering has to go through OpenEmu (mostly so shaders can work). 3D Metal has been implemented, but not the setup needed for MoltenVK.