memflow based dxgi screen mirror prototype

Last update: May 9, 2022

Related tags

Development tools memflow-mirror

Overview

memflow-mirror

work in progress framebuffer mirror based on memflow.

Installation

Compile the guest-agent on Windows with:

cargo build --release --bin mirror-guest --all-features

Then run the mirror_guest.exe from the target/release/ directory.

For improved performance you might want to run the mirror-guest with system privileges. Just open powershell as an Administrator and run:

PsExec -s -i -d "C:\path\to\mirror-guest.exe"

Run the mirror tool with:

RUST_SETPTRACE=1 cargo run --release --bin mirror -- -vvv --connector qemu_procfs --process mirror_guest.exe

Setup

With memflow inventory

When running the mirror tool with the default features the memflow inventory will be used. Since this project depends on memflow/next it is necessary to install an appropiate connector like qemu_procfs:

git clone https://github.com/memflow/memflow-qemu-procfs
cd memflow-qemu-procfs
git checkout next
./install.sh --system

The OS Plugin for win32 has to be installed as well:

git clone https://github.com/memflow/memflow
cd memflow
git checkout next
cargo build --release --all-features --workspace
sudo cp target/release/libmemflow_win32.so /usr/lib/memflow/

Without memflow inventory

You can also specify the memflow-static feature when building the mirror tool. This will statically link memflow-win32 as well as memflow-qemu-procfs into the resulting binary. Just run the mirror tool with:

RUST_SETPTRACE=1 cargo run --release --bin mirror --features memflow-static -- -vvv --connector qemu_procfs --process mirror_guest.exe

Development

For development purposes you can enable the shader-reload feature which uses the notify crate to hot reload shaders. To run the tool with this feature enabled just do:

RUST_SETPTRACE=1 cargo run --release --bin mirror --features shader-reload -- -vvv --connector qemu_procfs --process mirror_guest.exe

Demo

License

Licensed under MIT License, see LICENSE.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, shall be licensed as above, without any additional terms or conditions.

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Comments

Implement OBS Capture
This draft will implement OBS capture with dynamic switching when a fullscreen application is detected.

Current limitations:

Sometimes the capture takes a few seconds to switch so we should probably delay the switch until the first frame is captured

Sometimes the obs-rs library thinks there is a "restart" event which causes heavy stutters in the capture

Steam overlay isn't visible with obs capture
opened by ko1N 0
Forward cursor icons

The cursor icon should actually be fetched from windows and forwarded to the host for rendering. At best, the texture buffer should be provided by the guest agent.

opened by ko1N 0
Windows service and Installer

For more convenience, we shouldn't rely on PsExec anymore but build our own windows service. Ideally, we provide a pre-packaged installer so the end-user can just install the guest agent.

opened by ko1N 0
Sendinput via spice and/or qmp

For a better user experience (especially outside of games) it could be useful to support mouse and keyboard in a similar way to Parsec. Sending inputs could either be done via spice or qmp (if available).

opened by ko1N 0

memflow based dxgi screen mirror prototype

Related tags

Overview

memflow-mirror

Installation

Setup

With memflow inventory

Without memflow inventory

Development

Demo

License

Contribution

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