Google Git
Sign in
android / platform / hardware / google / gfxstream / 1220d96124904d1a38dadeea4ae807a950b8d9aa
commit1220d96124904d1a38dadeea4ae807a950b8d9aa[log] [tgz]
authorJason Macnak <[email protected]>Tue Nov 21 16:53:21 2023 -0800
committerJason Macnak <[email protected]>Wed Nov 22 10:52:54 2023 -0800
treefaee62298ac53b2d4171136d2061417c6524c7d8
parentcc9b823a2154a18807608fa2871bafab1f10b4e5 [diff]
Ensure EmuglPipe RenderThread-s have a virtio gpu context id

... and avoid setting invalid PUIDs in rcSetPuid() to avoid lots of
"Failed to find process owned resources fpr puid" errors.

After aosp/2752873, the host GlProcessPipe stopped initializing a unique
id for the process pipe. However, it continued to communicate the value
of the `m_uniqueId` back to the guest. The guest still uses PUID for
rcSetPuid commands in the guest EGL/GL implementations. This would
result in garbage PUIDs being used by RenderThreads for
getProcessResources() calls. Further, if a guest process used both
EGL/GL and Vulkan, getProcessResources() would return nullptr and then
the host would crash when the VkDecoder tried to read the seqnoPtr in
the process resources.

Bug: b/312560224
Test: cvd start --gpu_mode=gfxstream
Change-Id: Ie3697a7588a8d2180ccc9e7f02f38ed6d9f1bd12
10 files changed
tree: faee62298ac53b2d4171136d2061417c6524c7d8
  1. cmake/
  2. codegen/
  3. common/
  4. gl-host-common/
  5. guest/
  6. host/
  7. include/
  8. qnx/
  9. scripts/
  10. third-party/
  11. utils/
  12. .clang-format
  13. .gitignore
  14. Android.bp
  15. android.cmake
  16. Android.mk
  17. build-host.sh
  18. BUILD.gn
  19. CMakeLists.txt
  20. LICENSE
  21. meson.build
  22. meson_options.txt
  23. METADATA
  24. MODULE_LICENSE_APACHE2
  25. OWNERS
  26. README.md
README.md

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: Linux

Make sure the latest CMake is installed. Make sure the opengl lib is installed. Otherwise, sudo apt-get install libglu1-mesa-dev freeglut3-dev mesa-common-dev Make sure you are using Clang as your CC and clang++ as yourCXX. Then

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

Unit tests:

make test

Build: Windows

Make sure the latest CMake is installed. Make sure Visual Studio 2019 is installed on your system along with all the Clang C++ toolchain components. Then

mkdir build
cd build
cmake . ../ -A x64 -T ClangCL

A solution file should be generated. Then open the solution file in Visual studio and build the gfxstream_backend target.

Build: Android for host

Be in the Android build system. Then

m libgfxstream_backend

It then ends up in out/host

This also builds for Android on-device.

Output artifacts

libgfxstream_backend.(dll|so|dylib)

Regenerating Vulkan code

Check out the gfxstream-protocols repo at ../../../external/gfxstream-protocols relative to the root directory of this repo, and run the scripts/generate-vulkan-sources.sh script in the gfxstream-protocols root folder.

If you're in an AOSP checkout, this will also modify contents of the guest Vulkan encoder in ../goldfish-opengl.

Regenerating GLES/RenderControl code

First, build build/gfxstream-generic-apigen. Then run

scripts/generate-apigen-source.sh

Tests

Linux Tests

There are a bunch of test executables generated. They require libEGL.so and libGLESv2.so and libvulkan.so to be available, possibly from your GPU vendor or ANGLE, in the $LD_LIBRARY_PATH.

Windows Tests

There are a bunch of test executables generated. They require libEGL.dll and libGLESv2.dll and vulkan-1.dll to be available, possibly from your GPU vendor or ANGLE, in the %PATH%.

Android Host Tests

These are currently not built due to the dependency on system libEGL/libvulkan to run correctly.

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.
  • stream-servers/: implementations of various backends for various graphics APIs that consume protocol. gfxstream-virtio-gpu-renderer.cpp contains a virtio-gpu backend implementation.