Graphics Streaming Kit (formerly: Vulkan Cereal)

Graphics Streaming Kit is a code generator that makes it easier to serialize and forward graphics API calls from one place to another:

From a virtual machine guest to host for virtualized graphics
From one process to another for IPC graphics
From one computer to another via network sockets

Build

Make sure you are using Clang as your CC and CXX. Then

mkdir build
cd build
cmake . ../
make -j24

TODO: guest build makefiles (Android.bp)

Structure

CMakeLists.txt: specifies all host-side build targets. This includes all backends along with client/server setups that live only on the host. Some
- Backend implementations
- Implementations of the host side of various transports
- Frontends used for host-side testing with a mock implementation of guest graphics stack (mainly Android)
- Frontends that result in actual Linux/macOS/Windows gles/vk libraries (isolation / fault tolerance use case)
Android.bp: specifies all guest-side build targets for Android:
- Implementations of the guest side of various transports (above the kernel)
- Frontends
BUILD.gn: specifies all guest-side build targets for Fuchsia
- Implementations of the guest side of various transports (above the kernel)
- Frontends
base/: common libraries that are built for both the guest and host. Contains utility code related to synchronization, threading, and suballocation.
protocols/: implementations of protocols for various graphics APIs. May contain code generators to make it easy to regen the protocol based on certain things.
host-common/: implementations of host-side support code that makes it easier to run the server in a variety of virtual device environments. Contains concrete implementations of auxiliary virtual devices such as Address Space Device and Goldfish Pipe. APIs that consume protocol.
stream-servers/: implementations of various backends for various graphics APIs that consume protocol. gfxstream-virtio-gpu-renderer.cpp contains a virtio-gpu backend implementation.