enricobuehler
53ee24ac31
P1 done: a pure-Rust UMDF2 IddCx driver, drop-in compatible with the host's
existing vdisplay/sudovda.rs control plane (the {e5bcc234} interface + the
SudoVDA IOCTL ABI), so the host drives it unchanged. Validated streaming on
glass at 5120x1440@240 — steady 240 fps, ~2.4 ms encode, clean teardown, full
parity with SudoVDA.
- Vendored wdf-umdf-sys / wdf-umdf bindgen crates (MIT, from virtual-display-rs)
+ the SDK-version build.rs fix that resolves the IddCxStub lib path by the WDK
version actually containing um\x64\iddcx, not the max base SDK.
- pf-vdisplay crate: entry/callbacks/context/control/monitor/edid/
swap_chain_processor. Our OWN 128-byte EDID (manufacturer PNK, product
punktfunk — no SudoVDA bytes), a real swap-chain drain (faithful vdd port,
required so DWM keeps compositing), the SudoVDA-compatible IOCTL control plane
(ADD/REMOVE/PING/GET_WATCHDOG/GET_VERSION/SET_RENDER_ADAPTER) + a watchdog that
tears down orphaned monitors when the host stops pinging.
- deploy-dev.ps1: stage + sign + stampinf (date.time DriverVer) + Inf2Cat +
install, codifying the "bump DriverVer or pnputil keeps the old binary" gotcha.
- docs/windows-virtual-display-rust-port.md: investigation, the on-glass
validation, and the two traps that cost time (Session-0 measurement +
accumulated device-state needing a reboot).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
78 lines
2.3 KiB
Rust
78 lines
2.3 KiB
Rust
use windows::{
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core::Error,
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Win32::{
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Foundation::LUID,
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Graphics::{
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Direct3D::D3D_DRIVER_TYPE_UNKNOWN,
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Direct3D11::{
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D3D11CreateDevice, ID3D11Device, ID3D11DeviceContext,
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D3D11_CREATE_DEVICE_BGRA_SUPPORT,
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D3D11_CREATE_DEVICE_PREVENT_ALTERING_LAYER_SETTINGS_FROM_REGISTRY,
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D3D11_CREATE_DEVICE_SINGLETHREADED, D3D11_SDK_VERSION,
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},
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Dxgi::{CreateDXGIFactory2, IDXGIAdapter1, IDXGIFactory5, DXGI_CREATE_FACTORY_FLAGS},
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},
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},
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};
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#[derive(thiserror::Error, Debug)]
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pub enum Direct3DError {
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#[error("Direct3DError({0:?})")]
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Win32(#[from] Error),
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#[error("Direct3DError(\"{0}\")")]
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Other(&'static str),
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}
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impl From<&'static str> for Direct3DError {
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fn from(value: &'static str) -> Self {
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Direct3DError::Other(value)
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}
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}
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#[derive(Debug)]
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pub struct Direct3DDevice {
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// The following are already refcounted, so they're safe to use directly without additional drop impls
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_dxgi_factory: IDXGIFactory5,
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_adapter: IDXGIAdapter1,
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pub device: ID3D11Device,
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_device_context: ID3D11DeviceContext,
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}
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impl Direct3DDevice {
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pub fn init(adapter_luid: LUID) -> Result<Self, Direct3DError> {
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let dxgi_factory =
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unsafe { CreateDXGIFactory2::<IDXGIFactory5>(DXGI_CREATE_FACTORY_FLAGS(0))? };
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let adapter = unsafe { dxgi_factory.EnumAdapterByLuid::<IDXGIAdapter1>(adapter_luid)? };
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let mut device = None;
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let mut device_context = None;
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unsafe {
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D3D11CreateDevice(
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&adapter,
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D3D_DRIVER_TYPE_UNKNOWN,
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None,
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D3D11_CREATE_DEVICE_BGRA_SUPPORT
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| D3D11_CREATE_DEVICE_SINGLETHREADED
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| D3D11_CREATE_DEVICE_PREVENT_ALTERING_LAYER_SETTINGS_FROM_REGISTRY,
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None,
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D3D11_SDK_VERSION,
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Some(&mut device),
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None,
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Some(&mut device_context),
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)?;
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}
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let device = device.ok_or("ID3D11Device not found")?;
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let device_context = device_context.ok_or("ID3D11DeviceContext not found")?;
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Ok(Self {
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_dxgi_factory: dxgi_factory,
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_adapter: adapter,
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device,
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_device_context: device_context,
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})
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}
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}
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