APIs

Targeted

mod	api	description
d3d9	Direct3D 9	Older 3D Graphics (Mid Level, XP+)
xinput	XInput	Xbox 360 style controller/gamepad input
d3d::Compiler	d3dcompiler_NN.dll	HLSL Shader Model 5/earlier Compiler for Direct3D 9/10/11
xaudio2	xaudio2_9.dll	XAudio2 sound APIs

Not Yet Implemented

mod	api	description
d3d11	Direct3D 11	Modern 3D Graphics (Mid Level, Vista SP2+)
d3d12	Direct3D 12	Modern 3D Graphics (Low Level)
dxgi	DXGI	Modern 3D Graphics Setup
dinput	DirectInput	"Deprecated", but the only(?) way to access windows calibration/deadzones?
dxcompiler	DirectX Shader Compiler	HLSL Shader Model 6+ Compiler for Direct3D 12
	Lower Priority:
uwp::input?	Windows.Gaming.Input	Xbox One style controller/gamepad input
dsound?	DirectSound	XInput headset interop?
dwrite?	DirectWrite	Alternatives: many (Uniscribe?)
dxr?
xact3?
d2d?	Direct2D	Prefer straight up Direct3D? Or GDI?
dcompute?	DirectCompute	I have no need for GPGPU honestly

Out of Scope

Direct3D 10

Prefer Direct3D 11:

• Available on all the same OSes / platforms (at least with service packs)
• Feature levels can target the same hardware
• Safer refcounting semantics
• Extended API

D3DX

Prefer rust stuff:

• D3DX is "deprecated" / excluded from windows sdk (can't even link d3dx9.lib without pulling in e.g. the DirectX SDK that hasn't been updated in over a decade)
• Banned on some targets (windows store, xb1?)
• File format parsers in C++ just seems like a security issue (although cargo package spam is also a supply chain security issue?)

DirectDraw

Prefer Direct2D or Direct3D

• Not old, rotting, and deprecated

DirectPlay

Prefer native (UDP?) socket APIs and perhaps SteamWorks or other store vendor specific API for matchmaking, nat punchthrough, ...?

XAudio 1

Prefer XAudio 2:

• Exists, unlike XAudio 1?