Re-add the h264bitstream file headers mistakenly removed during vendoring

macOS remains on Qt 6.11.2 for v6.x to retain Ventura support

.github/dependabot.yml

@@ -0,0 +1,9 @@
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  - package-ecosystem: "gitsubmodule"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/build-appimage.yml

@@ -0,0 +1,166 @@
+---
+name: Build - Linux AppImage
+permissions:
+  contents: read
+
+on:
+  workflow_call:
+    inputs:
+      ci_version:
+        required: true
+        type: string
+
+jobs:
+  build:
+    env:
+      CI_VERSION: ${{ inputs.ci_version }}
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v5
+        with:
+          submodules: 'recursive'
+          fetch-depth: 1
+
+      - name: Setup environment
+        run: |
+          wget -qO - https://packages.lunarg.com/lunarg-signing-key-pub.asc | sudo apt-key add -
+          sudo wget -qO /etc/apt/sources.list.d/lunarg-vulkan-1.4.313-jammy.list https://packages.lunarg.com/vulkan/1.4.313/lunarg-vulkan-1.4.313-jammy.list
+          sudo apt update
+          sudo apt install -y qt6-base-dev qt6-declarative-dev libqt6svg6-dev qml6-module-qtquick-controls qml6-module-qtquick-templates qml6-module-qtquick-layouts \
+            qml6-module-qtqml-workerscript qml6-module-qtquick-window qml6-module-qtquick python3-pip nasm libgbm-dev libdrm-dev libfreetype-dev libasound2-dev \
+            libdbus-1-dev libegl1-mesa-dev libgl1-mesa-dev libgles2-mesa-dev libglu1-mesa-dev libibus-1.0-dev libpulse-dev libudev-dev libx11-dev libxcursor-dev \
+            libxext-dev libxi-dev libxinerama-dev libxkbcommon-dev libxrandr-dev libxss-dev libxt-dev libxv-dev libxxf86vm-dev libxcb-dri3-dev libx11-xcb-dev \
+            libxfixes-dev libxtst-dev wayland-protocols libopus-dev libvdpau-dev libgl-dev libpipewire-0.3-dev liburing-dev vulkan-sdk cmake
+          sudo pip3 install meson
+          mkdir -p dep_root/{bin,include,lib}
+          echo "DEP_ROOT=$PWD/dep_root" >> "${GITHUB_ENV}"
+          echo "$PWD/dep_root/bin" >> "${GITHUB_PATH}"
+
+      - name: Checkout SDL3
+        uses: actions/checkout@v5
+        with:
+          repository: libsdl-org/SDL
+          ref: release-3.4.18
+          path: deps/SDL
+
+      - name: Build SDL3
+        working-directory: deps/SDL
+        run: |
+          cmake -DSDL_KMSDRM=OFF -DSDL_TEST_LIBRARY=OFF -DSDL_INSTALL_DOCS=OFF -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON -S . -B build
+          cmake --build build -j
+          sudo cmake --install build
+
+      - name: Checkout sdl2-compat
+        uses: actions/checkout@v5
+        with:
+          repository: libsdl-org/sdl2-compat
+          ref: release-2.32.74
+          path: deps/sdl2-compat
+
+      - name: Build sdl2-compat
+        working-directory: deps/sdl2-compat
+        run: |
+          cmake -DSDL2COMPAT_TESTS=OFF -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON -S . -B build
+          cmake --build build -j
+          sudo cmake --install build
+
+      - name: Checkout SDL_ttf
+        uses: actions/checkout@v5
+        with:
+          repository: libsdl-org/SDL_ttf
+          ref: a883e490e30fb44a5336ea3dcb990c6982c5216f
+          path: deps/SDL_ttf
+          submodules: 'recursive'
+
+      - name: Build SDL_ttf
+        working-directory: deps/SDL_ttf
+        run: |
+          ./autogen.sh
+          ./configure
+          make -j$(nproc)
+          sudo make install
+
+      - name: Checkout libva
+        uses: actions/checkout@v5
+        with:
+          repository: intel/libva
+          ref: 2.24.1
+          path: deps/libva
+
+      - name: Build libva
+        working-directory: deps/libva
+        run: |
+          ./autogen.sh
+          ./configure --enable-x11=yes --enable-glx=no --enable-drm=no --enable-wayland=no
+          make -j$(nproc)
+          sudo make install
+
+      - name: Checkout libplacebo
+        uses: actions/checkout@v5
+        with:
+          repository: haasn/libplacebo
+          ref: 92b5ac6db79f4d680eb656692f7bf51e9606f42a
+          path: deps/libplacebo
+          submodules: 'recursive'
+
+      - name: Build libplacebo
+        working-directory: deps/libplacebo
+        run: |
+          git apply ../../app/deploy/linux/appimage/*.patch
+          meson setup build -Dvulkan=enabled -Dopengl=disabled -Ddemos=false
+          ninja -C build
+          sudo ninja install -C build
+
+      - name: Build dav1d
+        working-directory: deps
+        env:
+          DAV1D_VER: 1.5.4
+        run: |
+          git clone --branch $DAV1D_VER --depth 1 https://code.videolan.org/videolan/dav1d.git
+          pushd dav1d
+          meson setup build -Ddefault_library=static -Dbuildtype=release -Denable_tools=false -Denable_tests=false
+          ninja -C build
+          sudo ninja install -C build
+          popd
+
+      - name: Checkout FFmpeg
+        uses: actions/checkout@v5
+        with:
+          repository: FFmpeg/FFmpeg
+          ref: n9.0.2
+          path: deps/FFmpeg
+
+      - name: Build FFmpeg
+        working-directory: deps/FFmpeg
+        run: |
+          ./configure --enable-pic --enable-lto --disable-static --enable-shared --disable-all --disable-autodetect \
+            --enable-avcodec --enable-avformat --enable-swscale \
+            --enable-decoder=h264 --enable-decoder=hevc --enable-decoder=av1 \
+            --enable-vaapi --enable-hwaccel=h264_vaapi --enable-hwaccel=hevc_vaapi --enable-hwaccel=av1_vaapi \
+            --enable-vdpau --enable-hwaccel=h264_vdpau  --enable-hwaccel=hevc_vdpau --enable-hwaccel=av1_vdpau \
+            --enable-libdrm --enable-vulkan --enable-hwaccel=h264_vulkan --enable-hwaccel=hevc_vulkan --enable-hwaccel=av1_vulkan \
+            --enable-libdav1d --enable-decoder=libdav1d
+          make -j$(nproc)
+          sudo make install
+
+      - name: Install linuxdeploy
+        working-directory: dep_root/bin
+        run: |
+          wget https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
+          wget https://github.com/linuxdeploy/linuxdeploy-plugin-qt/releases/download/continuous/linuxdeploy-plugin-qt-x86_64.AppImage
+          chmod +x linuxdeploy*.AppImage
+
+      - name: Build Binaries
+        run: |
+          sudo ldconfig
+          scripts/build-appimage.sh
+
+      - name: Upload Binaries
+        uses: actions/upload-artifact@v6
+        with:
+          name: Moonlight-LinuxAppImage-${{ env.CI_VERSION }}
+          path: build/installer-release/Moonlight-${{ env.CI_VERSION }}-x86_64.AppImage
+          compression-level: 0
+          if-no-files-found: error

.github/workflows/build-steamlink.yml

@@ -0,0 +1,41 @@
+---
+name: Build - Steam Link
+permissions:
+  contents: read
+
+on:
+  workflow_call:
+    inputs:
+      ci_version:
+        required: true
+        type: string
+
+jobs:
+  build:
+    env:
+      CI_VERSION: ${{ inputs.ci_version }}
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v5
+        with:
+          submodules: 'recursive'
+          fetch-depth: 1
+
+      - name: Checkout Steam Link SDK
+        uses: actions/checkout@v5
+        with:
+          repository: ValveSoftware/steamlink-sdk
+          path: steamlink-sdk
+          fetch-depth: 1
+
+      - name: Build binaries
+        run: STEAMLINK_SDK_PATH=$PWD/steamlink-sdk scripts/build-steamlink-app.sh
+
+      - name: Upload Binaries
+        uses: actions/upload-artifact@v6
+        with:
+          name: Moonlight-SteamLink-${{ env.CI_VERSION }}
+          path: build/deploy-release/*
+          if-no-files-found: error

.github/workflows/build-win-mac.yml

@@ -0,0 +1,126 @@
+---
+name: Build - Windows and macOS
+permissions:
+  contents: read
+
+on:
+  workflow_call:
+    inputs:
+      ci_version:
+        required: true
+        type: string
+
+jobs:
+  build:
+    env:
+      CI_VERSION: ${{ inputs.ci_version }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # Windows
+          - os: windows-2025
+            qt_version: 6.12.0
+          # macOS
+          - os: macos-26
+            qt_version: 6.11.2
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v5
+        with:
+          submodules: 'recursive'
+          fetch-depth: 1
+
+      - name: Download dependencies (Windows)
+        if: runner.os == 'Windows'
+        run: powershell ./setup-deps.ps1
+
+      - name: Install create-dmg (macOS)
+        if: runner.os == 'macOS'
+        run: |
+          brew install node
+          npm install --global create-dmg
+
+      - name: Install Qt
+        uses: jurplel/install-qt-action@v4
+        with:
+          cache: true
+          set-env: ${{ runner.os != 'Windows' }}
+          add-tools-to-path: ${{ runner.os != 'Windows' }}
+          tools: ${{ runner.os == 'Windows' && 'tools_qtcreator_gui' || '' }}
+          version: ${{ matrix.qt_version }}
+          aqtsource: 'git+https://github.com/miurahr/aqtinstall.git@073e34d7c2ab4ae6961ed7cca690b3abd5ba5a7e'
+
+      - name: Install Qt ARM64 (Windows)
+        if: runner.os == 'Windows'
+        uses: jurplel/install-qt-action@v4
+        with:
+          cache: true
+          set-env: false
+          add-tools-to-path: false
+          arch: win64_msvc2022_arm64_cross_compiled
+          version: ${{ matrix.qt_version }}
+
+      - name: Build x64 binaries (Windows)
+        if: runner.os == 'Windows'
+        shell: cmd
+        run: |
+          set "PATH=%QT_PATH%;%PATH%"
+          scripts\build-arch.bat Release x64
+        env:
+          QT_PATH: ${{ runner.workspace }}\Qt\${{ matrix.qt_version }}\msvc2022_64\bin
+
+      - name: Build ARM64 binaries (Windows)
+        if: runner.os == 'Windows'
+        shell: cmd
+        run: |
+          set "PATH=%QT_PATH%;%PATH%"
+          scripts\build-arch.bat Release arm64
+        env:
+          QT_PATH: ${{ runner.workspace }}\Qt\${{ matrix.qt_version }}\msvc2022_arm64\bin
+
+      - name: Build Package
+        shell: pwsh
+        run: |
+          if ($Env:RUNNER_OS -eq "Windows") {
+            cmd /c scripts\generate-bundle.bat Release
+          } else {
+            bash scripts/generate-dmg.sh Release
+          }
+
+      - name: Upload Binaries (Windows x64)
+        uses: actions/upload-artifact@v6
+        if: runner.os == 'Windows'
+        with:
+          name: Moonlight-${{ runner.os }}-x64-${{ env.CI_VERSION }}
+          path: build/deploy-x64-release/*
+          if-no-files-found: error
+
+      - name: Upload Binaries (Windows arm64)
+        uses: actions/upload-artifact@v6
+        if: runner.os == 'Windows'
+        with:
+          name: Moonlight-${{ runner.os }}-arm64-${{ env.CI_VERSION }}
+          path: build/deploy-arm64-release/*
+          if-no-files-found: error
+
+      - name: Upload Binaries (macOS)
+        uses: actions/upload-artifact@v6
+        if: runner.os == 'macOS'
+        with:
+          name: Moonlight-${{ runner.os }}-${{ env.CI_VERSION }}
+          path: build/installer-Release/*.dmg
+          compression-level: 0
+          if-no-files-found: error
+
+      - name: Upload Symbols
+        uses: actions/upload-artifact@v6
+        with:
+          name: zDevDbgSyms-${{ runner.os }}-${{ env.CI_VERSION }}
+          path: |
+            build/installer-*/*.dsym/*
+            build/symbols-*/*.pdb
+          if-no-files-found: error

.github/workflows/build.yml

@@ -0,0 +1,45 @@
+---
+name: Build
+permissions:
+  contents: read
+
+on:
+  push:
+  pull_request:
+    branches:
+      - master
+
+concurrency:
+  group: build-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  setup:
+    runs-on: ubuntu-latest
+    outputs:
+      ci_version: ${{ steps.set-ci-version.outputs.ci_version }}
+    steps:
+      - name: Set CI version
+        id: set-ci-version
+        shell: bash
+        run: |
+          CI_VERSION=`echo ${GITHUB_SHA} | cut -c1-6`
+          echo "ci_version=${CI_VERSION}" >> "${GITHUB_OUTPUT}"
+
+  build-appimage:
+    needs: setup
+    uses: ./.github/workflows/build-appimage.yml
+    with:
+      ci_version: ${{ needs.setup.outputs.ci_version }}
+
+  build-steamlink:
+    needs: setup
+    uses: ./.github/workflows/build-steamlink.yml
+    with:
+      ci_version: ${{ needs.setup.outputs.ci_version }}
+
+  build-windows-macos:
+    needs: setup
+    uses: ./.github/workflows/build-win-mac.yml
+    with:
+      ci_version: ${{ needs.setup.outputs.ci_version }}

.gitignore

@@ -2,6 +2,8 @@
 
 
 **/.vs/
+.vscode/
 build/
+libs/
 config.tests/*/.qmake.stash
 config.tests/*/Makefile

.gitmodules

@@ -7,13 +7,3 @@
 [submodule "app/SDL_GameControllerDB"]
 	path = app/SDL_GameControllerDB
 	url = https://github.com/gabomdq/SDL_GameControllerDB.git
-[submodule "soundio/libsoundio"]
-	path = soundio/libsoundio
-	url = https://github.com/cgutman/libsoundio.git
-[submodule "h264bitstream/h264bitstream"]
-	path = h264bitstream/h264bitstream
-	url = https://github.com/aizvorski/h264bitstream.git
-[submodule "libs"]
-	path = libs
-	url = https://github.com/cgutman/moonlight-qt-prebuilts.git
-	shallow = true

AntiHooking/antihookingprotection.cpp

@@ -207,6 +207,28 @@ private:
         // Since the RTSS OSD doesn't even work with DXVA2, we'll just block the hooks entirely.
         L"RTSSHooks.dll",
         L"RTSSHooks64.dll",
+
+        // Bandicam's Vulkan layer DLL crashes during destruction of the Vulkan swapchain
+        // bdcamvk64+0x10b73:
+        // 00007ffa`be3b0b73 498b5630        mov     rdx,qword ptr [r14+30h] ds:00000000`00000030=????????????????
+        //
+        // bdcamvk64+0x10b73
+        // libplacebo_357!vk_sw_destroy+0x14f [D:\a\moonlight-deps\moonlight-deps\libplacebo\src\vulkan\swapchain.c @ 460]
+        // libplacebo_357!pl_swapchain_destroy+0x1a [D:\a\moonlight-deps\moonlight-deps\libplacebo\src\swapchain.c @ 30]
+        // Moonlight!PlVkRenderer::~PlVkRenderer+0x159 [D:\a\moonlight-qt\app\streaming\video\ffmpeg-renderers\plvk.cpp @ 140]
+        // Moonlight!PlVkRenderer::`scalar deleting destructor'+0x17
+        // Moonlight!FFmpegVideoDecoder::reset+0x203 [D:\a\moonlight-qt\app\streaming\video\ffmpeg.cpp @ 301]
+        // Moonlight!FFmpegVideoDecoder::~FFmpegVideoDecoder+0x22 [D:\a\moonlight-qt\app\streaming\video\ffmpeg.cpp @ 257]
+        // Moonlight!FFmpegVideoDecoder::`scalar deleting destructor'+0x17
+        // Moonlight!Session::getDecoderInfo+0x19a [D:\a\moonlight-qt\app\streaming\session.cpp @ 415]
+        // Moonlight!SystemProperties::querySdlVideoInfoInternal+0x134 [D:\a\moonlight-qt\app\backend\systemproperties.cpp @ 161]
+        // Moonlight!SystemProperties::querySdlVideoInfo+0x97 [D:\a\moonlight-qt\app\backend\systemproperties.cpp @ 123]
+        // Moonlight!SystemProperties::SystemProperties+0x4bf [D:\a\moonlight-qt\app\backend\systemproperties.cpp @ 75]
+        //
+        // https://github.com/moonlight-stream/moonlight-qt/issues/1425
+        // https://github.com/moonlight-stream/moonlight-qt/issues/1579
+        L"bdcamvk32.dll",
+        L"bdcamvk64.dll",
     };
 };
 

README.md

@@ -6,7 +6,7 @@ Moonlight also has mobile versions for [Android](https://github.com/moonlight-st
 
 You can follow development on our [Discord server](https://moonlight-stream.org/discord) and help translate Moonlight into your language on [Weblate](https://hosted.weblate.org/projects/moonlight/moonlight-qt/).
 
- [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/glj5cxqwy2w3bglv/branch/master?svg=true)](https://ci.appveyor.com/project/cgutman/moonlight-qt/branch/master)
+ [![Build](https://img.shields.io/github/actions/workflow/status/moonlight-stream/moonlight-qt/build.yml?branch=master)](https://github.com/moonlight-stream/moonlight-qt/actions/workflows/build.yml?query=branch%3Amaster)
  [![Downloads](https://img.shields.io/github/downloads/moonlight-stream/moonlight-qt/total)](https://github.com/moonlight-stream/moonlight-qt/releases)
  [![Translation Status](https://hosted.weblate.org/widgets/moonlight/-/moonlight-qt/svg-badge.svg)](https://hosted.weblate.org/projects/moonlight/moonlight-qt/)
 
@@ -31,6 +31,9 @@ You can follow development on our [Discord server](https://moonlight-stream.org/
 - [Experimental RISC-V Debian packages](https://github.com/moonlight-stream/moonlight-docs/wiki/Installing-Moonlight-Qt-on-RISC%E2%80%90V-Single-Board-Computers)
 - [NVIDIA Jetson and Nintendo Switch (Ubuntu L4T)](https://github.com/moonlight-stream/moonlight-docs/wiki/Installing-Moonlight-Qt-on-Linux4Tegra-(L4T)-Ubuntu)
 
+### Nightly Builds
+- [Downloads](https://nightly.link/moonlight-stream/moonlight-qt/workflows/build/master)
+
 #### Special Thanks
 
 [![Hosted By: Cloudsmith](https://img.shields.io/badge/OSS%20hosting%20by-cloudsmith-blue?logo=cloudsmith&style=flat-square)](https://cloudsmith.com)
@@ -40,8 +43,8 @@ Hosting for Moonlight's Debian and L4T package repositories is graciously provid
 ## Building
 
 ### Windows Build Requirements
-* Qt 6.7 SDK or later (earlier versions may work but are not officially supported)
+* Qt 6.11 SDK or later (earlier versions may work but are not officially supported)
-* [Visual Studio 2022](https://visualstudio.microsoft.com/downloads/) (Community edition is fine)
+* [Visual Studio 2026](https://visualstudio.microsoft.com/downloads/) (Community edition is fine)
 * Select **MSVC** option during Qt installation. MinGW is not supported.
 * [7-Zip](https://www.7-zip.org/) (only if building installers for non-development PCs)
 * Graphics Tools (only if running debug builds)
@@ -49,18 +52,18 @@ Hosting for Moonlight's Debian and L4T package repositories is graciously provid
   * Alternatively, run `dism /online /add-capability /capabilityname:Tools.Graphics.DirectX~~~~0.0.1.0` and reboot.
 
 ### macOS Build Requirements
-* Qt 6.7 SDK or later (earlier versions may work but are not officially supported)
+* Qt 6.11 SDK or later (earlier versions may work but are not officially supported)
-* Xcode 14 or later (earlier versions may work but are not officially supported)
+* Xcode 15 or later (earlier versions may work but are not officially supported)
 * [create-dmg](https://github.com/sindresorhus/create-dmg) (only if building DMGs for use on non-development Macs)
 
 ### Linux/Unix Build Requirements
-* Qt 6 is recommended, but Qt 5.9 or later is also supported (replace `qmake6` with `qmake` when using Qt 5).
+* Qt 6 is recommended, but Qt 5.12 or later is also supported (replace `qmake6` with `qmake` when using Qt 5).
 * GCC or Clang
 * FFmpeg 4.0 or later
 * Install the required packages:
   * Debian/Ubuntu:
     * Base Requirements: `libegl1-mesa-dev libgl1-mesa-dev libopus-dev libsdl2-dev libsdl2-ttf-dev libssl-dev libavcodec-dev libavformat-dev libswscale-dev libva-dev libvdpau-dev libxkbcommon-dev wayland-protocols libdrm-dev`
-    * Qt 6 (Recommended): `qt6-base-dev qt6-declarative-dev libqt6svg6-dev qml6-module-qtquick-controls qml6-module-qtquick-templates qml6-module-qtquick-layouts qml6-module-qtqml-workerscript qml6-module-qtquick-window qml6-module-qtquick`
+    * Qt 6 (Recommended): `qt6-base-dev qt6-declarative-dev libqt6svg6-dev qt6-wayland qml6-module-qtquick-controls qml6-module-qtquick-templates qml6-module-qtquick-layouts qml6-module-qtqml-workerscript qml6-module-qtquick-window qml6-module-qtquick`
     * Qt 5: `qtbase5-dev qt5-qmake qtdeclarative5-dev qtquickcontrols2-5-dev qml-module-qtquick-controls2 qml-module-qtquick-layouts qml-module-qtquick-window2 qml-module-qtquick2 qtwayland5`
   * RedHat/Fedora (RPM Fusion repo required):
     * Base Requirements: `openssl-devel SDL2-devel SDL2_ttf-devel ffmpeg-devel libva-devel libvdpau-devel opus-devel pulseaudio-libs-devel alsa-lib-devel libdrm-devel`
@@ -72,18 +75,33 @@ Hosting for Moonlight's Debian and L4T package repositories is graciously provid
 * [Steam Link SDK](https://github.com/ValveSoftware/steamlink-sdk) cloned on your build system
 * STEAMLINK_SDK_PATH environment variable set to the Steam Link SDK path
 
+**Steam Link Hardware Limitations**  
+Moonlight builds for Steam Link are subject to hardware limitations of the Steam Link device:
+* Maximum resolution: **1080p (1920x1080)**
+* Maximum framerate: **60 FPS**
+* Maximum video bitrate: **40 Mbps**
+* **HDR streaming is not supported** on the original hardware
+
+### Docker containers
+If you want to use Docker for building, look at [this repo](https://github.com/cgutman/moonlight-packaging) containing canonical containers
+for different architectures, which handle building deps and extra linking for you.
+
 ### Build Setup Steps
 1. Install the latest Qt SDK (and optionally, the Qt Creator IDE) from https://www.qt.io/download
     * You can install Qt via Homebrew on macOS, but you will need to use `brew install qt --with-debug` to be able to create debug builds of Moonlight.
-    * You may also use your Linux distro's package manager for the Qt SDK as long as the packages are Qt 5.9 or later.
+    * You may also use your Linux distro's package manager for the Qt SDK as long as the packages are Qt 5.12 or later.
     * This step is not required for building on Steam Link, because the Steam Link SDK includes Qt 5.14.
-2. Run `git submodule update --init --recursive` from within `moonlight-qt/`
+2. Download submodules and dependencies
+    * Run `git submodule update --init --recursive` from within `moonlight-qt/`.
+    * On Windows and macOS, you must also run `setup-deps.ps1` (Windows) or `setup-deps.py` (macOS).
+    * Perform these steps each time you pull new changes from the Git repository.
 3. Open the project in Qt Creator or build from qmake on the command line.
     * To build a binary for use on non-development machines, use the scripts in the `scripts` folder.
         * For Windows builds, use `scripts\build-arch.bat` and `scripts\generate-bundle.bat`. Execute these scripts from the root of the repository within a Qt command prompt. Ensure  7-Zip binary directory is on your `%PATH%`.
         * For macOS builds, use `scripts/generate-dmg.sh`. Execute this script from the root of the repository and ensure Qt's `bin` folder is in your `$PATH`.
         * For Steam Link builds, run `scripts/build-steamlink-app.sh` from the root of the repository.
-    * To build from the command line for development use on macOS or Linux, run `qmake6 moonlight-qt.pro` then `make debug` or `make release`
+    * To build from the command line for development use on macOS or Linux, run `qmake6 moonlight-qt.pro` then `make debug` or `make release`.
+        * The final binary will be placed in `app/moonlight`.
     * To create an embedded build for a single-purpose device, use `qmake6 "CONFIG+=embedded" moonlight-qt.pro` and build normally.
         * This build will lack windowed mode, Discord/Help links, and other features that don't make sense on an embedded device.
         * For platforms with poor GPU performance, add `"CONFIG+=gpuslow"` to prefer direct KMSDRM rendering over GL/Vulkan renderers. Direct KMSDRM rendering can use dedicated YUV/RGB conversion and scaling hardware rather than slower GPU shaders for these operations.

app/Info.plist

@@ -2,8 +2,12 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>GCSupportsGameMode</key>
+	<true/>
 	<key>CFBundleExecutable</key>
 	<string>Moonlight</string>
+	<key>LSSupportsGameMode</key>
+	<true/>
 	<key>CFBundleGetInfoString</key>
 	<string>Stream games and other applications from another PC</string>
 	<key>CFBundleIconFile</key>
@@ -17,7 +21,7 @@
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>LSMinimumSystemVersion</key>
-	<string>11.0.0</string>
+	<string>13.0.0</string>
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
 	<key>NSSupportsAutomaticGraphicsSwitching</key>
@@ -38,11 +42,17 @@
 	</dict>
 	<key>NSLocalNetworkUsageDescription</key>
 	<string>Moonlight uses the local network to connect to your gaming PC for streaming.</string>
+	<key>NSBonjourServices</key>
+	<array>
+		<string>_nvstream._tcp</string>
+	</array>
 	<key>CFBundleVersion</key>
 	<string>VERSION</string>
 	<key>CFBundleShortVersionString</key>
 	<string>VERSION</string>
 	<key>CFBundleDisplayName</key>
 	<string>Moonlight</string>
+    <key>LSApplicationCategoryType</key>
+	<string>public.app-category.games</string>
 </dict>
 </plist>

app/Moonlight.exe.manifest

@@ -11,7 +11,8 @@
     <asmv3:application>
         <asmv3:windowsSettings>
             <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true/pm</dpiAware>
-            <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">permonitor</dpiAwareness>
+            <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">permonitorv2, permonitor</dpiAwareness>
+            <heapType xmlns="http://schemas.microsoft.com/SMI/2020/WindowsSettings">SegmentHeap</heapType>
         </asmv3:windowsSettings>
     </asmv3:application>
     <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">

app/app.pro

@@ -1,5 +1,5 @@
 QT += core quick network quickcontrols2 svg
-CONFIG += c++11
+CONFIG += c++17
 
 unix:!macx {
     TARGET = moonlight
@@ -36,35 +36,29 @@ DEFINES += QT_DEPRECATED_WARNINGS
 DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
 
 win32 {
-    contains(QT_ARCH, i386) {
+    !exists($$PWD/../libs/windows) {
-        LIBS += -L$$PWD/../libs/windows/lib/x86
+        error("Missing dependencies. Please run 'powershell .\setup-deps.ps1' to fetch prebuilt libraries.")
-        INCLUDEPATH += $$PWD/../libs/windows/include/x86
     }
+
     contains(QT_ARCH, x86_64) {
         LIBS += -L$$PWD/../libs/windows/lib/x64
-        INCLUDEPATH += $$PWD/../libs/windows/include/x64
+        INCLUDEPATH += $$PWD/../libs/windows/include/x64 $$PWD/../libs/windows/include/x64/SDL2
     }
     contains(QT_ARCH, arm64) {
         LIBS += -L$$PWD/../libs/windows/lib/arm64
-        INCLUDEPATH += $$PWD/../libs/windows/include/arm64
+        INCLUDEPATH += $$PWD/../libs/windows/include/arm64 $$PWD/../libs/windows/include/arm64/SDL2
     }
 
     INCLUDEPATH += $$PWD/../libs/windows/include
     LIBS += ws2_32.lib winmm.lib dxva2.lib ole32.lib gdi32.lib user32.lib d3d9.lib dwmapi.lib dbghelp.lib
-
-    # Work around a conflict with math.h inclusion between SDL and Qt 6
-    DEFINES += _USE_MATH_DEFINES
 }
 macx:!disable-prebuilts {
-    INCLUDEPATH += $$PWD/../libs/mac/include
+    !exists($$PWD/../libs/mac) {
-    INCLUDEPATH += $$PWD/../libs/mac/Frameworks/SDL2.framework/Versions/A/Headers
+        error("Missing dependencies. Please run 'python3 setup-deps.py' to fetch prebuilt libraries.")
-    INCLUDEPATH += $$PWD/../libs/mac/Frameworks/SDL2_ttf.framework/Versions/A/Headers
+    }
-    LIBS += -L$$PWD/../libs/mac/lib -F$$PWD/../libs/mac/Frameworks
 
-    # QMake doesn't handle framework-style includes correctly on its own
+    INCLUDEPATH += $$PWD/../libs/mac/include $$PWD/../libs/mac/include/SDL2
-    QMAKE_CFLAGS += -F$$PWD/../libs/mac/Frameworks
+    LIBS += -L$$PWD/../libs/mac/lib
-    QMAKE_CXXFLAGS += -F$$PWD/../libs/mac/Frameworks
-    QMAKE_OBJECTIVE_CFLAGS += -F$$PWD/../libs/mac/Frameworks
 }
 
 unix:if(!macx|disable-prebuilts) {
@@ -122,7 +116,9 @@ unix:if(!macx|disable-prebuilts) {
                 }
             }
 
-            !disable-cuda {
+            # Disabled by default due to reliability issues. See #1314.
+            # CUDA interop is superseded by VDPAU and Vulkan Video.
+            enable-cuda {
                 packagesExist(ffnvcodec) {
                     PKGCONFIG += ffnvcodec
                     CONFIG += cuda
@@ -157,20 +153,16 @@ win32 {
     CONFIG += ffmpeg libplacebo
 }
 win32:!winrt {
-    CONFIG += soundio discord-rpc
+    CONFIG += discord-rpc
 }
 macx {
     !disable-prebuilts {
-        LIBS += -lssl.3 -lcrypto.3 -lavcodec.61 -lavutil.59 -lswscale.8 -lopus -framework SDL2 -framework SDL2_ttf
+        LIBS += -lssl.3 -lcrypto.3 -lavcodec.63 -lavutil.61 -lswscale.10 -lopus.0 -lSDL2 -lSDL2_ttf -lplacebo
-        CONFIG += discord-rpc
+        CONFIG += discord-rpc libplacebo
     }
 
     LIBS += -lobjc -framework VideoToolbox -framework AVFoundation -framework CoreVideo -framework CoreGraphics -framework CoreMedia -framework AppKit -framework Metal -framework QuartzCore
-
+    CONFIG += ffmpeg
-    # For libsoundio
-    LIBS += -framework CoreAudio -framework AudioUnit
-
-    CONFIG += ffmpeg soundio
 }
 
 SOURCES += \
@@ -204,6 +196,7 @@ SOURCES += \
     streaming/audio/renderers/sdlaud.cpp \
     gui/computermodel.cpp \
     gui/appmodel.cpp \
+    streaming/bandwidth.cpp \
     streaming/streamutils.cpp \
     backend/autoupdatechecker.cpp \
     path.cpp \
@@ -241,6 +234,7 @@ HEADERS += \
     gui/computermodel.h \
     gui/appmodel.h \
     streaming/video/decoder.h \
+    streaming/bandwidth.h \
     streaming/streamutils.h \
     backend/autoupdatechecker.h \
     path.h \
@@ -329,9 +323,12 @@ libdrm {
     HEADERS += streaming/video/ffmpeg-renderers/drm.h
 
     linux {
-        message(Master hooks enabled)
+        !disable-masterhooks {
-        SOURCES += masterhook.c masterhook_internal.c
+            message(Master hooks enabled)
-        LIBS += -ldl
+            DEFINES += HAVE_DRM_MASTER_HOOKS
+            SOURCES += masterhook.c masterhook_internal.c
+            LIBS += -ldl -pthread
+        }
     }
 }
 cuda {
@@ -353,6 +350,10 @@ libplacebo {
         streaming/video/ffmpeg-renderers/plvk_c.c
     HEADERS += \
         streaming/video/ffmpeg-renderers/plvk.h
+
+    macx {
+        SOURCES += streaming/video/ffmpeg-renderers/plvk_objc.mm
+    }
 }
 config_EGL {
     message(EGL renderer selected)
@@ -414,13 +415,6 @@ macx {
     HEADERS += \
         streaming/video/ffmpeg-renderers/vt.h
 }
-soundio {
-    message(libsoundio audio renderer selected)
-
-    DEFINES += HAVE_SOUNDIO SOUNDIO_STATIC_LIBRARY
-    SOURCES += streaming/audio/renderers/soundioaudiorenderer.cpp
-    HEADERS += streaming/audio/renderers/soundioaudiorenderer.h
-}
 discord-rpc {
     message(Discord integration enabled)
 
@@ -486,7 +480,10 @@ TRANSLATIONS += \
     languages/qml_he.ts \
     languages/qml_ckb.ts \
     languages/qml_lt.ts \
-    languages/qml_et.ts
+    languages/qml_et.ts \
+    languages/qml_bg.ts \
+    languages/qml_eo.ts \
+    languages/qml_ta.ts
 
 # Additional import path used to resolve QML modules in Qt Creator's code model
 QML_IMPORT_PATH =
@@ -508,21 +505,12 @@ else:unix: LIBS += -L$$OUT_PWD/../qmdnsengine/ -lqmdnsengine
 INCLUDEPATH += $$PWD/../qmdnsengine/qmdnsengine/src/include $$PWD/../qmdnsengine
 DEPENDPATH += $$PWD/../qmdnsengine/qmdnsengine/src/include $$PWD/../qmdnsengine
 
-soundio {
-    win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../soundio/release/ -lsoundio
-    else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../soundio/debug/ -lsoundio
-    else:unix: LIBS += -L$$OUT_PWD/../soundio/ -lsoundio
-
-    INCLUDEPATH += $$PWD/../soundio/libsoundio
-    DEPENDPATH += $$PWD/../soundio/libsoundio
-}
-
 win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../h264bitstream/release/ -lh264bitstream
 else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../h264bitstream/debug/ -lh264bitstream
 else:unix: LIBS += -L$$OUT_PWD/../h264bitstream/ -lh264bitstream
 
-INCLUDEPATH += $$PWD/../h264bitstream/h264bitstream
+INCLUDEPATH += $$PWD/../h264bitstream
-DEPENDPATH += $$PWD/../h264bitstream/h264bitstream
+DEPENDPATH += $$PWD/../h264bitstream
 
 !winrt {
     win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../AntiHooking/release/ -lAntiHooking

app/backend/autoupdatechecker.cpp

@@ -58,7 +58,7 @@ void AutoUpdateChecker::start()
 void AutoUpdateChecker::parseStringToVersionQuad(QString& string, QVector<int>& version)
 {
     QStringList list = string.split('.');
-    for (const QString& component : list) {
+    for (const QString& component : std::as_const(list)) {
         version.append(component.toInt());
     }
 }
@@ -139,7 +139,7 @@ void AutoUpdateChecker::handleUpdateCheckRequestFinished(QNetworkReply* reply)
             return;
         }
 
-        for (QJsonValueRef updateEntry : array) {
+        for (const auto& updateEntry : std::as_const(array)) {
             if (updateEntry.isObject()) {
                 QJsonObject updateObj = updateEntry.toObject();
                 if (!updateObj.contains("platform") ||

app/backend/computermanager.cpp

@@ -9,8 +9,7 @@
 #include <QThread>
 #include <QThreadPool>
 #include <QCoreApplication>
-
+#include <QRandomGenerator>
-#include <random>
 
 #define SER_HOSTS "hosts"
 #define SER_HOSTS_BACKUP "hostsbackup"
@@ -30,9 +29,9 @@ public:
     }
 
 private:
-    bool tryPollComputer(NvAddress address, bool& changed)
+    bool tryPollComputer(QNetworkAccessManager* nam, NvAddress address, bool& changed)
     {
-        NvHTTP http(address, 0, m_Computer->serverCert);
+        NvHTTP http(address, 0, m_Computer->serverCert, !m_Computer->isNvidiaServerSoftware, nam);
 
         QString serverInfo;
         try {
@@ -53,9 +52,9 @@ private:
         return true;
     }
 
-    bool updateAppList(bool& changed)
+    bool updateAppList(QNetworkAccessManager* nam, bool& changed)
     {
-        NvHTTP http(m_Computer);
+        NvHTTP http(m_Computer, nam);
 
         QVector<NvApp> appList;
 
@@ -75,6 +74,21 @@ private:
 
     void run() override
     {
+        // Reduce the power and performance impact of our
+        // computer status polling while it's running.
+        setPriority(QThread::LowPriority);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 9, 0)
+        setServiceLevel(QThread::QualityOfService::Eco);
+#endif
+
+        // Share the QNetworkAccessManager to conserve resources when polling.
+        // Each instance creates a worker thread, so sharing them ensures that
+        // we are not spamming a new thread for every single polling attempt.
+        //
+        // Since QThread inherit the priority of the current thread, this also
+        // ensures that the NAM's worker thread will inherit our lower priority.
+        QNetworkAccessManager nam;
+
         // Always fetch the applist the first time
         int pollsSinceLastAppListFetch = POLLS_PER_APPLIST_FETCH;
         while (!isInterruptionRequested()) {
@@ -87,7 +101,7 @@ private:
                         return;
                     }
 
-                    if (tryPollComputer(address, stateChanged)) {
+                    if (tryPollComputer(&nam, address, stateChanged)) {
                         if (!wasOnline) {
                             qInfo() << m_Computer->name << "is now online at" << m_Computer->activeAddress.toString();
                         }
@@ -118,7 +132,7 @@ private:
                     stateChanged = false;
                 }
 
-                if (updateAppList(stateChanged)) {
+                if (updateAppList(&nam, stateChanged)) {
                     pollsSinceLastAppListFetch = 0;
                 }
             }
@@ -217,17 +231,17 @@ ComputerManager::~ComputerManager()
     m_MdnsBrowser = nullptr;
 
     // Interrupt polling
-    for (ComputerPollingEntry* entry : m_PollEntries) {
+    for (ComputerPollingEntry* entry : std::as_const(m_PollEntries)) {
         entry->interrupt();
     }
 
     // Delete all polling entries (and associated threads)
-    for (ComputerPollingEntry* entry : m_PollEntries) {
+    for (ComputerPollingEntry* entry : std::as_const(m_PollEntries)) {
         delete entry;
     }
 
     // Destroy all NvComputer objects now that polling is halted
-    for (NvComputer* computer : m_KnownHosts) {
+    for (NvComputer* computer : std::as_const(m_KnownHosts)) {
         delete computer;
     }
 }
@@ -254,7 +268,7 @@ void DelayedFlushThread::run() {
 
             // Update the last serialized hosts map under the delayed flush mutex
             m_ComputerManager->m_LastSerializedHosts.clear();
-            for (const NvComputer* computer : m_ComputerManager->m_KnownHosts) {
+            for (const NvComputer* computer : std::as_const(m_ComputerManager->m_KnownHosts)) {
                 // Copy the current state of the NvComputer to allow us to check later if we need
                 // to serialize it again when attribute updates occur.
                 QReadLocker computerLock(&computer->lock);
@@ -271,7 +285,7 @@ void DelayedFlushThread::run() {
             {
                 QReadLocker lock(&m_ComputerManager->m_Lock);
                 int i = 0;
-                for (const NvComputer* computer : m_ComputerManager->m_KnownHosts) {
+                for (const NvComputer* computer : std::as_const(m_ComputerManager->m_KnownHosts)) {
                     settings.setArrayIndex(i++);
                     computer->serialize(settings, false);
                 }
@@ -284,7 +298,7 @@ void DelayedFlushThread::run() {
             {
                 QReadLocker lock(&m_ComputerManager->m_Lock);
                 int i = 0;
-                for (const NvComputer* computer : m_ComputerManager->m_KnownHosts) {
+                for (const NvComputer* computer : std::as_const(m_ComputerManager->m_KnownHosts)) {
                     settings.setArrayIndex(i++);
                     computer->serialize(settings, true);
                 }
@@ -410,13 +424,15 @@ void ComputerManager::handleMdnsServiceResolved(MdnsPendingComputer* computer,
     bool added = false;
 
     // Add the host using the IPv4 address
-    for (const QHostAddress& address : addresses) {
+    for (const QHostAddress& address : std::as_const(addresses)) {
         if (address.protocol() == QAbstractSocket::IPv4Protocol) {
             // NB: We don't just call addNewHost() here with v6Global because the IPv6
             // address may not be reachable (if the user hasn't installed the IPv6 helper yet
             // or if this host lacks outbound IPv6 capability). We want to add IPv6 even if
             // it's not currently reachable.
-            addNewHost(NvAddress(address, computer->port()), true, NvAddress(v6Global, computer->port()));
+            addNewHost(NvAddress(address, computer->port()),
+                       true, computer->hostname(),
+                       NvAddress(v6Global, computer->port()));
             added = true;
             break;
         }
@@ -424,13 +440,15 @@ void ComputerManager::handleMdnsServiceResolved(MdnsPendingComputer* computer,
 
     if (!added) {
         // If we get here, there wasn't an IPv4 address so we'll do it v6-only
-        for (const QHostAddress& address : addresses) {
+        for (const QHostAddress& address : std::as_const(addresses)) {
             if (address.protocol() == QAbstractSocket::IPv6Protocol) {
                 // Use a link-local or site-local address for the "local address"
                 if (address.isInSubnet(QHostAddress("fe80::"), 10) ||
                         address.isInSubnet(QHostAddress("fec0::"), 10) ||
                         address.isInSubnet(QHostAddress("fc00::"), 7)) {
-                    addNewHost(NvAddress(address, computer->port()), true, NvAddress(v6Global, computer->port()));
+                    addNewHost(NvAddress(address, computer->port()),
+                               true, computer->hostname(),
+                               NvAddress(v6Global, computer->port()));
                     break;
                 }
             }
@@ -551,7 +569,7 @@ void ComputerManager::handleAboutToQuit()
 
     // Interrupt polling threads immediately, so they
     // avoid making additional requests while quitting
-    for (ComputerPollingEntry* entry : m_PollEntries) {
+    for (ComputerPollingEntry* entry : std::as_const(m_PollEntries)) {
         entry->interrupt();
     }
 }
@@ -703,7 +721,7 @@ void ComputerManager::stopPollingAsync()
     m_MdnsServer.reset();
 
     // Interrupt all threads, but don't wait for them to terminate
-    for (ComputerPollingEntry* entry : m_PollEntries) {
+    for (ComputerPollingEntry* entry : std::as_const(m_PollEntries)) {
         entry->interrupt();
     }
 }
@@ -715,6 +733,10 @@ void ComputerManager::addNewHostManually(QString address)
         // If there wasn't a port specified, use the default
         addNewHost(NvAddress(url.host(), url.port(DEFAULT_HTTP_PORT)), false);
     }
+    else if (QHostAddress(address).protocol() == QAbstractSocket::IPv6Protocol) {
+        // The user specified an IPv6 literal without URL escaping, so use the default port
+        addNewHost(NvAddress(address, DEFAULT_HTTP_PORT), false);
+    }
     else {
         emit computerAddCompleted(false, false);
     }
@@ -725,8 +747,9 @@ class PendingAddTask : public QObject, public QRunnable
     Q_OBJECT
 
 public:
-    PendingAddTask(ComputerManager* computerManager, NvAddress address, NvAddress mdnsIpv6Address, bool mdns)
+    PendingAddTask(ComputerManager* computerManager, QString name, NvAddress address, NvAddress mdnsIpv6Address, bool mdns)
         : m_ComputerManager(computerManager),
+          m_Name(name),
           m_Address(address),
           m_MdnsIpv6Address(mdnsIpv6Address),
           m_Mdns(mdns),
@@ -802,9 +825,21 @@ private:
 
     void run()
     {
-        NvHTTP http(m_Address, 0, QSslCertificate());
+        // Use the placeholder UID for the initial poll, then we'll switch to the real one if it's not GFE
+        NvHTTP http(m_Address, 0, QSslCertificate(), false);
 
-        qInfo() << "Processing new PC at" << m_Address.toString() << "from" << (m_Mdns ? "mDNS" : "user") << "with IPv6 address" << m_MdnsIpv6Address.toString();
+        if (m_Mdns) {
+            if (m_MdnsIpv6Address.isNull()) {
+                qInfo() << "Processing new PC" << m_Name << "from mDNS with local address" << m_Address.toString();
+            }
+            else {
+                qInfo() << "Processing new PC" << m_Name << "from mDNS with local address" << m_Address.toString()
+                        << "and IPv6 address" << m_MdnsIpv6Address.toString();
+            }
+        }
+        else {
+            qInfo() << "Processing new PC at" << m_Address.toString() << "from user";
+        }
 
         // Perform initial serverinfo fetch over HTTP since we don't know which cert to use
         QString serverInfo = fetchServerInfo(http);
@@ -819,6 +854,7 @@ private:
 
         // Create initial newComputer using HTTP serverinfo with no pinned cert
         NvComputer* newComputer = new NvComputer(http, serverInfo);
+        http.setTrueUid(!newComputer->isNvidiaServerSoftware);
 
         // Check if we have a record of this host UUID to pull the pinned cert
         NvComputer* existingComputer;
@@ -952,28 +988,24 @@ private:
     }
 
     ComputerManager* m_ComputerManager;
+    QString m_Name;
     NvAddress m_Address;
     NvAddress m_MdnsIpv6Address;
     bool m_Mdns;
     bool m_AboutToQuit;
 };
 
-void ComputerManager::addNewHost(NvAddress address, bool mdns, NvAddress mdnsIpv6Address)
+void ComputerManager::addNewHost(NvAddress address, bool mdns, QString name, NvAddress mdnsIpv6Address)
 {
     // Punt to a worker thread to avoid stalling the
     // UI while waiting for serverinfo query to complete
-    PendingAddTask* addTask = new PendingAddTask(this, address, mdnsIpv6Address, mdns);
+    PendingAddTask* addTask = new PendingAddTask(this, name, address, mdnsIpv6Address, mdns);
     QThreadPool::globalInstance()->start(addTask);
 }
 
-// TODO: Use QRandomGenerator when we drop Qt 5.9 support
 QString ComputerManager::generatePinString()
 {
-    std::uniform_int_distribution<int> dist(0, 9999);
+    return QString::asprintf("%04u", QRandomGenerator::system()->bounded(10000));
-    std::random_device rd;
-    std::mt19937 engine(rd());
-
-    return QString::asprintf("%04u", dist(engine));
 }
 
 #include "computermanager.moc"

app/backend/computermanager.h

@@ -90,7 +90,6 @@ private slots:
 
     void handleResolvedAddress(const QHostAddress& address)
     {
-        qInfo() << "Resolved" << hostname() << "to" << address;
         m_Addresses.push_back(address);
     }
 
@@ -151,7 +150,7 @@ public:
         // interrupt() should have taken care of this
         Q_ASSERT(m_ActiveThread == nullptr);
 
-        for (QThread* thread : m_InactiveList) {
+        for (QThread* thread : std::as_const(m_InactiveList)) {
             thread->wait();
             delete thread;
         }
@@ -228,7 +227,7 @@ public:
 
     Q_INVOKABLE void addNewHostManually(QString address);
 
-    void addNewHost(NvAddress address, bool mdns, NvAddress mdnsIpv6Address = NvAddress());
+    void addNewHost(NvAddress address, bool mdns, QString name = QString(), NvAddress mdnsIpv6Address = NvAddress());
 
     QString generatePinString();
 

app/backend/computerseeker.cpp

@@ -7,10 +7,9 @@ ComputerSeeker::ComputerSeeker(ComputerManager *manager, QString computerName, Q
       m_TimeoutTimer(new QTimer(this))
 {
     // If we know this computer, send a WOL packet to wake it up in case it is asleep.
-    for (NvComputer * computer: m_ComputerManager->getComputers()) {
+    NvComputer* matchingComputer = findMatchingComputer();
-        if (this->matchComputer(computer)) {
+    if (matchingComputer) {
-            computer->wake();
+        matchingComputer->wake();
-        }
     }
 
     m_TimeoutTimer->setSingleShot(true);
@@ -23,11 +22,16 @@ ComputerSeeker::ComputerSeeker(ComputerManager *manager, QString computerName, Q
 void ComputerSeeker::start(int timeout)
 {
     m_TimeoutTimer->start(timeout);
-    // Seek desired computer by both connecting to it directly (this may fail
+
-    // if m_ComputerName is UUID, or the name that doesn't resolve to an IP
+    // If we don't know this computer by name, address, or UUID, try adding it
-    // address) and by polling it using mDNS, hopefully one of these methods
+    // manually and see if we can find it by address, hostname, or mDNS.
-    // would find the host
+    //
-    m_ComputerManager->addNewHostManually(m_ComputerName);
+    // NB: We don't do this unconditionally because it will wipe out the user's
+    // manual address if they pass another reachable hostname/address.
+    if (!findMatchingComputer()) {
+        m_ComputerManager->addNewHostManually(m_ComputerName);
+    }
+
     m_ComputerManager->startPolling();
 }
 
@@ -51,7 +55,8 @@ bool ComputerSeeker::matchComputer(NvComputer *computer) const
         return true;
     }
 
-    for (const NvAddress& addr : computer->uniqueAddresses()) {
+    const auto uniqueAddresses = computer->uniqueAddresses();
+    for (const NvAddress& addr : uniqueAddresses) {
         if (addr.address().toLower() == value || addr.toString().toLower() == value) {
             return true;
         }
@@ -60,6 +65,18 @@ bool ComputerSeeker::matchComputer(NvComputer *computer) const
     return false;
 }
 
+NvComputer* ComputerSeeker::findMatchingComputer() const
+{
+    const auto computers = m_ComputerManager->getComputers();
+    for (NvComputer* computer : computers) {
+        if (this->matchComputer(computer)) {
+            return computer;
+        }
+    }
+
+    return nullptr;
+}
+
 bool ComputerSeeker::isOnline(NvComputer *computer) const
 {
     return computer->state == NvComputer::CS_ONLINE;

app/backend/computerseeker.h

@@ -24,6 +24,7 @@ private slots:
 
 private:
     bool matchComputer(NvComputer *computer) const;
+    NvComputer* findMatchingComputer() const;
     bool isOnline(NvComputer *computer) const;
 
 private:

app/backend/identitymanager.cpp

@@ -31,6 +31,10 @@ void IdentityManager::createCredentials(QSettings& settings)
     X509* cert = X509_new();
     THROW_BAD_ALLOC_IF_NULL(cert);
 
+#if OPENSSL_VERSION_NUMBER >= 0x30000000L
+    EVP_PKEY* pk = EVP_RSA_gen(2048);
+    THROW_BAD_ALLOC_IF_NULL(pk);
+#else
     EVP_PKEY_CTX* ctx = EVP_PKEY_CTX_new_id(EVP_PKEY_RSA, NULL);
     THROW_BAD_ALLOC_IF_NULL(ctx);
 
@@ -43,6 +47,7 @@ void IdentityManager::createCredentials(QSettings& settings)
 
     EVP_PKEY_CTX_free(ctx);
     THROW_BAD_ALLOC_IF_NULL(pk);
+#endif
 
     X509_set_version(cert, 2);
     ASN1_INTEGER_set(X509_get_serialNumber(cert), 0);
@@ -50,28 +55,20 @@ void IdentityManager::createCredentials(QSettings& settings)
     X509_gmtime_adj(X509_get_notBefore(cert), 0);
     X509_gmtime_adj(X509_get_notAfter(cert), 60 * 60 * 24 * 365 * 20); // 20 yrs
 #else
-    ASN1_TIME* before = ASN1_STRING_dup(X509_get0_notBefore(cert));
+    X509_gmtime_adj(X509_getm_notBefore(cert), 0);
-    THROW_BAD_ALLOC_IF_NULL(before);
+    X509_gmtime_adj(X509_getm_notAfter(cert), 60 * 60 * 24 * 365 * 20); // 20 yrs
-    ASN1_TIME* after = ASN1_STRING_dup(X509_get0_notAfter(cert));
-    THROW_BAD_ALLOC_IF_NULL(after);
-
-    X509_gmtime_adj(before, 0);
-    X509_gmtime_adj(after, 60 * 60 * 24 * 365 * 20); // 20 yrs
-
-    X509_set1_notBefore(cert, before);
-    X509_set1_notAfter(cert, after);
-
-    ASN1_STRING_free(before);
-    ASN1_STRING_free(after);
 #endif
 
     X509_set_pubkey(cert, pk);
 
-    X509_NAME* name = X509_get_subject_name(cert);
+    X509_NAME* name = X509_NAME_new();
+    THROW_BAD_ALLOC_IF_NULL(name);
     X509_NAME_add_entry_by_txt(name, "CN", MBSTRING_ASC,
                                reinterpret_cast<unsigned char *>(const_cast<char*>("NVIDIA GameStream Client")),
                                -1, -1, 0);
+    X509_set_subject_name(cert, name);
     X509_set_issuer_name(cert, name);
+    X509_NAME_free(name);
 
     X509_sign(cert, pk, EVP_sha256());
 
@@ -136,6 +133,22 @@ IdentityManager::IdentityManager()
     if (getSslKey().isNull()) {
         qFatal("Private key is unreadable");
     }
+
+    // Load the unique ID from settings
+    m_CachedUniqueId = settings.value(SER_UNIQUEID).toString();
+    if (!m_CachedUniqueId.isEmpty()) {
+        qInfo() << "Loaded unique ID from settings:" << m_CachedUniqueId;
+    }
+    else {
+        // Generate a new unique ID in base 16
+        uint64_t uid;
+        RAND_bytes(reinterpret_cast<unsigned char*>(&uid), sizeof(uid));
+        m_CachedUniqueId = QString::number(uid, 16);
+
+        qInfo() << "Generated new unique ID:" << m_CachedUniqueId;
+
+        settings.setValue(SER_UNIQUEID, m_CachedUniqueId);
+    }
 }
 
 QSslCertificate
@@ -173,7 +186,7 @@ IdentityManager::getSslKey()
 
         BUF_MEM* mem;
         BIO_get_mem_ptr(bio, &mem);
-        m_CachedSslKey = QSslKey(QByteArray::fromRawData(mem->data, (int)mem->length), QSsl::Rsa);
+        m_CachedSslKey = QSslKey(QByteArray(mem->data, (int)mem->length), QSsl::Rsa);
 
         BIO_free(bio);
         EVP_PKEY_free(pk);
@@ -193,25 +206,6 @@ IdentityManager::getSslConfig()
 QString
 IdentityManager::getUniqueId()
 {
-    if (m_CachedUniqueId.isEmpty()) {
-        QSettings settings;
-
-        // Load the unique ID from settings
-        m_CachedUniqueId = settings.value(SER_UNIQUEID).toString();
-        if (!m_CachedUniqueId.isEmpty()) {
-            qInfo() << "Loaded unique ID from settings:" << m_CachedUniqueId;
-        }
-        else {
-            // Generate a new unique ID in base 16
-            uint64_t uid;
-            RAND_bytes(reinterpret_cast<unsigned char*>(&uid), sizeof(uid));
-            m_CachedUniqueId = QString::number(uid, 16);
-
-            qInfo() << "Generated new unique ID:" << m_CachedUniqueId;
-
-            settings.setValue(SER_UNIQUEID, m_CachedUniqueId);
-        }
-    }
     return m_CachedUniqueId;
 }
 

app/backend/nvapp.h

@@ -25,7 +25,9 @@ public:
 
     bool isInitialized()
     {
-        return id != 0 && !name.isEmpty();
+        // We use isNull() instead of isEmpty() here because we want
+        // to detect cases where the name is unassigned, not empty.
+        return id != 0 && !name.isNull();
     }
 
     void

app/backend/nvcomputer.cpp

@@ -99,7 +99,7 @@ void NvComputer::serialize(QSettings& settings, bool serializeApps) const
         settings.beginWriteArray(SER_APPLIST);
         for (int i = 0; i < appList.count(); i++) {
             settings.setArrayIndex(i);
-            appList[i].serialize(settings);
+            appList.at(i).serialize(settings);
         }
         settings.endArray();
     }
@@ -141,7 +141,7 @@ NvComputer::NvComputer(NvHTTP& http, QString serverInfo)
     QString newMacString = NvHTTP::getXmlString(serverInfo, "mac");
     if (newMacString != "00:00:00:00:00:00") {
         QStringList macOctets = newMacString.split(':');
-        for (const QString& macOctet : macOctets) {
+        for (const QString& macOctet : std::as_const(macOctets)) {
             this->macAddress.append((char) macOctet.toInt(nullptr, 16));
         }
     }
@@ -254,14 +254,16 @@ bool NvComputer::wake() const
     // case the host has timed out in ARP entries.
     QMap<QString, quint16> addressMap;
     QSet<quint16> basePortSet;
-    for (const NvAddress& addr : uniqueAddresses()) {
+    const auto uniqueHostAddresses = uniqueAddresses();
+    for (const NvAddress& addr : uniqueHostAddresses) {
         addressMap.insert(addr.address(), addr.port());
         basePortSet.insert(addr.port());
     }
     addressMap.insert("255.255.255.255", 0);
 
     // Try to broadcast on all available NICs
-    for (const QNetworkInterface& nic : QNetworkInterface::allInterfaces()) {
+    const auto allInterfaces = QNetworkInterface::allInterfaces();
+    for (const QNetworkInterface& nic : allInterfaces) {
         // Ensure the interface is up and skip the loopback adapter
         if ((nic.flags() & QNetworkInterface::IsUp) == 0 ||
                 (nic.flags() & QNetworkInterface::IsLoopBack) != 0) {
@@ -269,7 +271,8 @@ bool NvComputer::wake() const
         }
 
         QHostAddress allNodesMulticast("FF02::1");
-        for (const QNetworkAddressEntry& addr : nic.addressEntries()) {
+        const auto allInterfaceAddresses = nic.addressEntries();
+        for (const QNetworkAddressEntry& addr : allInterfaceAddresses) {
             // Store the scope ID for this NIC if IPv6 is enabled
             if (!addr.ip().scopeId().isEmpty()) {
                 allNodesMulticast.setScopeId(addr.ip().scopeId());
@@ -375,13 +378,15 @@ NvComputer::ReachabilityType NvComputer::getActiveAddressReachability() const
         Q_ASSERT(!s.localAddress().isNull());
         Q_ASSERT(!s.peerAddress().isNull());
 
-        for (const QNetworkInterface& nic : QNetworkInterface::allInterfaces()) {
+        const auto allInterfaces = QNetworkInterface::allInterfaces();
+        for (const QNetworkInterface& nic : allInterfaces) {
             // Ensure the interface is up
             if ((nic.flags() & QNetworkInterface::IsUp) == 0) {
                 continue;
             }
 
-            for (const QNetworkAddressEntry& addr : nic.addressEntries()) {
+            const auto allInterfaceAddresses = nic.addressEntries();
+            for (const QNetworkAddressEntry& addr : allInterfaceAddresses) {
                 if (addr.ip() == s.localAddress()) {
                     qInfo() << "Found matching interface:" << nic.humanReadableName() << nic.hardwareAddress() << nic.flags();
 
@@ -463,7 +468,7 @@ bool NvComputer::updateAppList(QVector<NvApp> newAppList) {
     }
 
     // Propagate client-side attributes to the new app list
-    for (const NvApp& existingApp : appList) {
+    for (const NvApp& existingApp : std::as_const(appList)) {
         for (NvApp& newApp : newAppList) {
             if (existingApp.id == newApp.id) {
                 newApp.hidden = existingApp.hidden;

app/backend/nvhttp.cpp

@@ -18,8 +18,16 @@
 #define RESUME_TIMEOUT_MS 30000
 #define QUIT_TIMEOUT_MS 30000
 
-NvHTTP::NvHTTP(NvAddress address, uint16_t httpsPort, QSslCertificate serverCert) :
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
-    m_ServerCert(serverCert)
+#define XML_NAME_EQUALS(x, y) ((x) == (y))
+#else
+#define XML_NAME_EQUALS(x, y) ((x) == (u##y))
+#endif
+
+NvHTTP::NvHTTP(NvAddress address, uint16_t httpsPort, QSslCertificate serverCert, bool useTrueUid, QNetworkAccessManager* nam) :
+    m_Nam(nam ? nam : new QNetworkAccessManager(this)),
+    m_ServerCert(serverCert),
+    m_UseTrueUid(useTrueUid)
 {
     m_BaseUrlHttp.setScheme("http");
     m_BaseUrlHttps.setScheme("https");
@@ -29,15 +37,12 @@ NvHTTP::NvHTTP(NvAddress address, uint16_t httpsPort, QSslCertificate serverCert
 
     // Never use a proxy server
     QNetworkProxy noProxy(QNetworkProxy::NoProxy);
-    m_Nam.setProxy(noProxy);
+    m_Nam->setProxy(noProxy);
-
-    connect(&m_Nam, &QNetworkAccessManager::sslErrors, this, &NvHTTP::handleSslErrors);
 }
 
-NvHTTP::NvHTTP(NvComputer* computer) :
+NvHTTP::NvHTTP(NvComputer* computer, QNetworkAccessManager* nam) :
-    NvHTTP(computer->activeAddress, computer->activeHttpsPort, computer->serverCert)
+    NvHTTP(computer->activeAddress, computer->activeHttpsPort, computer->serverCert, !computer->isNvidiaServerSoftware, nam)
 {
-
 }
 
 void NvHTTP::setServerCert(QSslCertificate serverCert)
@@ -62,6 +67,11 @@ void NvHTTP::setHttpsPort(uint16_t port)
     m_BaseUrlHttps.setPort(port);
 }
 
+void NvHTTP::setTrueUid(bool useTrueUid)
+{
+    m_UseTrueUid = useTrueUid;
+}
+
 NvAddress NvHTTP::address()
 {
     return m_Address;
@@ -110,7 +120,7 @@ NvHTTP::getCurrentGame(QString serverInfo)
     // has the semantics that its name would indicate. To contain the effects of this change as much
     // as possible, we'll force the current game to zero if the server isn't in a streaming session.
     QString serverState = getXmlString(serverInfo, "state");
-    if (serverState != nullptr && serverState.endsWith("_SERVER_BUSY"))
+    if (serverState.endsWith("_SERVER_BUSY"))
     {
         return getXmlString(serverInfo, "currentgame").toInt();
     }
@@ -267,17 +277,19 @@ NvHTTP::getDisplayModeList(QString serverInfo)
     while (!xmlReader.atEnd()) {
         while (xmlReader.readNextStartElement()) {
             auto name = xmlReader.name();
-            if (name == QString("DisplayMode")) {
+            if (XML_NAME_EQUALS(name, "DisplayMode")) {
                 modes.append(NvDisplayMode());
             }
-            else if (name == QString("Width")) {
+            else if (!modes.isEmpty()) {
-                modes.last().width = xmlReader.readElementText().toInt();
+                if (XML_NAME_EQUALS(name, "Width")) {
-            }
+                    modes.last().width = xmlReader.readElementText().toInt();
-            else if (name == QString("Height")) {
+                }
-                modes.last().height = xmlReader.readElementText().toInt();
+                else if (XML_NAME_EQUALS(name, "Height")) {
-            }
+                    modes.last().height = xmlReader.readElementText().toInt();
-            else if (name == QString("RefreshRate")) {
+                }
-                modes.last().refreshRate = xmlReader.readElementText().toInt();
+                else if (XML_NAME_EQUALS(name, "RefreshRate")) {
+                    modes.last().refreshRate = xmlReader.readElementText().toInt();
+                }
             }
         }
     }
@@ -300,26 +312,36 @@ NvHTTP::getAppList()
     while (!xmlReader.atEnd()) {
         while (xmlReader.readNextStartElement()) {
             auto name = xmlReader.name();
-            if (name == QString("App")) {
+            if (XML_NAME_EQUALS(name, "App")) {
                 // We must have a valid app before advancing to the next one
                 if (!apps.isEmpty() && !apps.last().isInitialized()) {
                     qWarning() << "Invalid applist XML";
-                    Q_ASSERT(false);
+                    throw std::runtime_error("Invalid applist XML");
-                    return QVector<NvApp>();
                 }
                 apps.append(NvApp());
             }
-            else if (name == QString("AppTitle")) {
+            else if (!apps.isEmpty()) {
-                apps.last().name = xmlReader.readElementText();
+                if (XML_NAME_EQUALS(name, "AppTitle")) {
-            }
+                    // If an app has no name, Sunshine may send us <AppTitle/>,
-            else if (name == QString("ID")) {
+                    // which readElementText() returns as a null QString.
-                apps.last().id = xmlReader.readElementText().toInt();
+                    // We want to treat this as an empty QString instead, so we
-            }
+                    // will explicitly convert it. An empty string will satisfy
-            else if (name == QString("IsHdrSupported")) {
+                    // NvApp's isInitialized() check.
-                apps.last().hdrSupported = xmlReader.readElementText() == "1";
+                    QString name = xmlReader.readElementText();
-            }
+                    if (name.isNull()) {
-            else if (name == QString("IsAppCollectorGame")) {
+                        name = "";
-                apps.last().isAppCollectorGame = xmlReader.readElementText() == "1";
+                    }
+                    apps.last().name = name;
+                }
+                else if (XML_NAME_EQUALS(name, "ID")) {
+                    apps.last().id = xmlReader.readElementText().toInt();
+                }
+                else if (XML_NAME_EQUALS(name, "IsHdrSupported")) {
+                    apps.last().hdrSupported = xmlReader.readElementText() == "1";
+                }
+                else if (XML_NAME_EQUALS(name, "IsAppCollectorGame")) {
+                    apps.last().isAppCollectorGame = xmlReader.readElementText() == "1";
+                }
             }
         }
     }
@@ -334,7 +356,7 @@ NvHTTP::verifyResponseStatus(QString xml)
 
     while (xmlReader.readNextStartElement())
     {
-        if (xmlReader.name() == QString("root"))
+        if (XML_NAME_EQUALS(xmlReader.name(), "root"))
         {
             // Status code can be 0xFFFFFFFF in some rare cases on GFE 3.20.3, and
             // QString::toInt() will fail in that case, so use QString::toUInt()
@@ -385,13 +407,7 @@ QByteArray
 NvHTTP::getXmlStringFromHex(QString xml,
                             QString tagName)
 {
-    QString str = getXmlString(xml, tagName);
+    return QByteArray::fromHex(getXmlString(xml, tagName).toUtf8());
-    if (str == nullptr)
-    {
-        return nullptr;
-    }
-
-    return QByteArray::fromHex(str.toLatin1());
 }
 
 QString
@@ -413,7 +429,7 @@ NvHTTP::getXmlString(QString xml,
         }
     }
 
-    return nullptr;
+    return QString();
 }
 
 void NvHTTP::handleSslErrors(QNetworkReply* reply, const QList<QSslError>& errors)
@@ -476,11 +492,9 @@ NvHTTP::openConnection(QUrl baseUrl,
     QUrl url(baseUrl);
     url.setPath("/" + command);
 
-    // Use a common UID for Moonlight clients to allow them to quit
+    // Use a placeholder UID for GFE allow them to quit games for each other.
-    // games for each other (otherwise GFE gets screwed up and it requires
+    url.setQuery("uniqueid=" + (m_UseTrueUid ? IdentityManager::get()->getUniqueId() : "0123456789ABCDEF") +
-    // manual intervention to solve).
+                 "&uuid=" + QUuid::createUuid().toRfc4122().toHex() +
-    url.setQuery("uniqueid=0123456789ABCDEF&uuid=" +
-                 QUuid::createUuid().toRfc4122().toHex() +
                  ((arguments != nullptr) ? ("&" + arguments) : ""));
 
     QNetworkRequest request(url);
@@ -493,15 +507,15 @@ NvHTTP::openConnection(QUrl baseUrl,
     request.setAttribute(QNetworkRequest::Http2AllowedAttribute, false);
 #endif
 
-#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0) && QT_VERSION < QT_VERSION_CHECK(5, 15, 1) && !defined(QT_NO_BEARERMANAGEMENT)
+#if QT_VERSION >= QT_VERSION_CHECK(6, 3, 0)
-    // HACK: Set network accessibility to work around QTBUG-80947 (introduced in Qt 5.14.0 and fixed in Qt 5.15.1)
+    // Use fine-grained idle timeouts to avoid calling QNetworkAccessManager::clearAccessCache(),
-    QT_WARNING_PUSH
+    // which tears down the NAM's global thread each time. We must not keep persistent connections
-    QT_WARNING_DISABLE_DEPRECATED
+    // or GFE will puke.
-    m_Nam.setNetworkAccessible(QNetworkAccessManager::Accessible);
+    request.setAttribute(QNetworkRequest::ConnectionCacheExpiryTimeoutSecondsAttribute, 0);
-    QT_WARNING_POP
 #endif
 
-    QNetworkReply* reply = m_Nam.get(request);
+    auto sslErrorsConnection = connect(m_Nam, &QNetworkAccessManager::sslErrors, this, &NvHTTP::handleSslErrors);
+    QNetworkReply* reply = m_Nam->get(request);
 
     // Run the request with a timeout if requested
     QEventLoop loop;
@@ -524,9 +538,11 @@ NvHTTP::openConnection(QUrl baseUrl,
         reply->abort();
     }
 
-    // We must clear out cached authentication and connections or
+#if QT_VERSION < QT_VERSION_CHECK(6, 3, 0)
-    // GFE will puke next time
+    // If we couldn't use fine-grained connection idle timeouts, kill them all now
-    m_Nam.clearAccessCache();
+    m_Nam->clearAccessCache();
+#endif
+    disconnect(sslErrorsConnection);
 
     // Handle error
     if (reply->error() != QNetworkReply::NoError)

app/backend/nvhttp.h

@@ -33,19 +33,19 @@ class GfeHttpResponseException : public std::exception
 public:
     GfeHttpResponseException(int statusCode, QString message) :
         m_StatusCode(statusCode),
-        m_StatusMessage(message)
+        m_StatusMessage(message.toUtf8())
     {
 
     }
 
     const char* what() const throw()
     {
-        return m_StatusMessage.toLatin1();
+        return m_StatusMessage.constData();
     }
 
     const char* getStatusMessage() const
     {
-        return m_StatusMessage.toLatin1();
+        return m_StatusMessage.constData();
     }
 
     int getStatusCode() const
@@ -55,12 +55,12 @@ public:
 
     QString toQString() const
     {
-        return m_StatusMessage + " (Error " + QString::number(m_StatusCode) + ")";
+        return QString::fromUtf8(m_StatusMessage) + " (Error " + QString::number(m_StatusCode) + ")";
     }
 
 private:
     int m_StatusCode;
-    QString m_StatusMessage;
+    QByteArray m_StatusMessage;
 };
 
 class QtNetworkReplyException : public std::exception
@@ -68,19 +68,19 @@ class QtNetworkReplyException : public std::exception
 public:
     QtNetworkReplyException(QNetworkReply::NetworkError error, QString errorText) :
         m_Error(error),
-        m_ErrorText(errorText)
+        m_ErrorText(errorText.toUtf8())
     {
 
     }
 
     const char* what() const throw()
     {
-        return m_ErrorText.toLatin1();
+        return m_ErrorText.constData();
     }
 
     const char* getErrorText() const
     {
-        return m_ErrorText.toLatin1();
+        return m_ErrorText.constData();
     }
 
     QNetworkReply::NetworkError getError() const
@@ -90,12 +90,12 @@ public:
 
     QString toQString() const
     {
-        return m_ErrorText + " (Error " + QString::number(m_Error) + ")";
+        return QString::fromUtf8(m_ErrorText) + " (Error " + QString::number(m_Error) + ")";
     }
 
 private:
     QNetworkReply::NetworkError m_Error;
-    QString m_ErrorText;
+    QByteArray m_ErrorText;
 };
 
 class NvHTTP : public QObject
@@ -109,9 +109,9 @@ public:
         NVLL_VERBOSE
     };
 
-    explicit NvHTTP(NvAddress address, uint16_t httpsPort, QSslCertificate serverCert);
+    explicit NvHTTP(NvAddress address, uint16_t httpsPort, QSslCertificate serverCert, bool useTrueUid, QNetworkAccessManager* nam = nullptr);
 
-    explicit NvHTTP(NvComputer* computer);
+    explicit NvHTTP(NvComputer* computer, QNetworkAccessManager* nam = nullptr);
 
     static
     int
@@ -142,9 +142,9 @@ public:
                            NvLogLevel logLevel = NvLogLevel::NVLL_VERBOSE);
 
     void setServerCert(QSslCertificate serverCert);
-
     void setAddress(NvAddress address);
     void setHttpsPort(uint16_t port);
+    void setTrueUid(bool useTrueUid);
 
     NvAddress address();
 
@@ -196,6 +196,7 @@ private:
                    NvLogLevel logLevel);
 
     NvAddress m_Address;
-    QNetworkAccessManager m_Nam;
+    QNetworkAccessManager* m_Nam;
     QSslCertificate m_ServerCert;
+    bool m_UseTrueUid;
 };

app/backend/nvpairingmanager.cpp

@@ -54,16 +54,18 @@ NvPairingManager::generateRandomBytes(int length)
 QByteArray
 NvPairingManager::encrypt(const QByteArray& plaintext, const QByteArray& key)
 {
-    QByteArray ciphertext(plaintext.size(), 0);
+    if (plaintext.isEmpty()) {
-    EVP_CIPHER_CTX* cipher;
+        return QByteArray();
-    int ciphertextLen;
+    }
 
-    cipher = EVP_CIPHER_CTX_new();
+    EVP_CIPHER_CTX* cipher = EVP_CIPHER_CTX_new();
     THROW_BAD_ALLOC_IF_NULL(cipher);
 
     EVP_EncryptInit(cipher, EVP_aes_128_ecb(), reinterpret_cast<const unsigned char*>(key.data()), NULL);
     EVP_CIPHER_CTX_set_padding(cipher, 0);
 
+    QByteArray ciphertext(plaintext.size(), 0);
+    int ciphertextLen;
     EVP_EncryptUpdate(cipher,
                       reinterpret_cast<unsigned char*>(ciphertext.data()),
                       &ciphertextLen,
@@ -79,16 +81,18 @@ NvPairingManager::encrypt(const QByteArray& plaintext, const QByteArray& key)
 QByteArray
 NvPairingManager::decrypt(const QByteArray& ciphertext, const QByteArray& key)
 {
-    QByteArray plaintext(ciphertext.size(), 0);
+    if (ciphertext.isEmpty()) {
-    EVP_CIPHER_CTX* cipher;
+        return QByteArray();
-    int plaintextLen;
+    }
 
-    cipher = EVP_CIPHER_CTX_new();
+    EVP_CIPHER_CTX* cipher = EVP_CIPHER_CTX_new();
     THROW_BAD_ALLOC_IF_NULL(cipher);
 
     EVP_DecryptInit(cipher, EVP_aes_128_ecb(), reinterpret_cast<const unsigned char*>(key.data()), NULL);
     EVP_CIPHER_CTX_set_padding(cipher, 0);
 
+    QByteArray plaintext(ciphertext.size(), 0);
+    int plaintextLen;
     EVP_DecryptUpdate(cipher,
                       reinterpret_cast<unsigned char*>(plaintext.data()),
                       &plaintextLen,
@@ -101,6 +105,29 @@ NvPairingManager::decrypt(const QByteArray& ciphertext, const QByteArray& key)
     return plaintext;
 }
 
+QByteArray
+NvPairingManager::getSignatureFromCert(X509* cert)
+{
+#if (OPENSSL_VERSION_NUMBER < 0x10002000L)
+    ASN1_BIT_STRING *asnSignature = cert->signature;
+#elif (OPENSSL_VERSION_NUMBER < 0x10100000L)
+    ASN1_BIT_STRING *asnSignature;
+    X509_get0_signature(&asnSignature, NULL, cert);
+#else
+    const ASN1_BIT_STRING *asnSignature;
+    X509_get0_signature(&asnSignature, NULL, cert);
+#endif
+
+    return QByteArray(
+#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
+        reinterpret_cast<const char*>(ASN1_STRING_data(asnSignature)),
+#else
+        reinterpret_cast<const char*>(ASN1_STRING_get0_data(asnSignature)),
+#endif
+        ASN1_STRING_length(asnSignature)
+    );
+}
+
 QByteArray
 NvPairingManager::getSignatureFromPemCert(const QByteArray& certificate)
 {
@@ -114,18 +141,7 @@ NvPairingManager::getSignatureFromPemCert(const QByteArray& certificate)
     X509* cert = PEM_read_bio_X509(bio, nullptr, nullptr, nullptr);
     BIO_free_all(bio);
 
-#if (OPENSSL_VERSION_NUMBER < 0x10002000L)
+    QByteArray signature = getSignatureFromCert(cert);
-    ASN1_BIT_STRING *asnSignature = cert->signature;
-#elif (OPENSSL_VERSION_NUMBER < 0x10100000L)
-    ASN1_BIT_STRING *asnSignature;
-    X509_get0_signature(&asnSignature, NULL, cert);
-#else
-    const ASN1_BIT_STRING *asnSignature;
-    X509_get0_signature(&asnSignature, NULL, cert);
-#endif
-
-    QByteArray signature(reinterpret_cast<char*>(asnSignature->data), asnSignature->length);
-
     X509_free(cert);
 
     return signature;
@@ -184,7 +200,7 @@ NvPairingManager::signMessage(const QByteArray& message)
 QByteArray
 NvPairingManager::saltPin(const QByteArray& salt, QString pin)
 {
-    return QByteArray().append(salt).append(pin.toLatin1());
+    return QByteArray().append(salt).append(pin.toUtf8());
 }
 
 NvPairingManager::PairState
@@ -227,8 +243,7 @@ NvPairingManager::pair(QString appVersion, QString pin, QSslCertificate& serverC
     }
 
     QByteArray serverCertStr = NvHTTP::getXmlStringFromHex(getCert, "plaincert");
-    if (serverCertStr == nullptr)
+    if (serverCertStr.isEmpty()) {
-    {
         qCritical() << "Server likely already pairing";
         m_Http.openConnectionToString(m_Http.m_BaseUrlHttp, "unpair", nullptr, REQUEST_TIMEOUT_MS);
         return PairState::ALREADY_IN_PROGRESS;
@@ -263,22 +278,18 @@ NvPairingManager::pair(QString appVersion, QString pin, QSslCertificate& serverC
     }
 
     QByteArray challengeResponseData = decrypt(m_Http.getXmlStringFromHex(challengeXml, "challengeresponse"), aesKey);
+    if (challengeResponseData.size() < hashLength) {
+        qCritical() << "Invalid challengeresponse at stage #2";
+        m_Http.openConnectionToString(m_Http.m_BaseUrlHttp, "unpair", nullptr, REQUEST_TIMEOUT_MS);
+        return PairState::FAILED;
+    }
+
     QByteArray clientSecretData = generateRandomBytes(16);
     QByteArray challengeResponse;
     QByteArray serverResponse(challengeResponseData.data(), hashLength);
 
-#if (OPENSSL_VERSION_NUMBER < 0x10002000L)
-    ASN1_BIT_STRING *asnSignature = m_Cert->signature;
-#elif (OPENSSL_VERSION_NUMBER < 0x10100000L)
-    ASN1_BIT_STRING *asnSignature;
-    X509_get0_signature(&asnSignature, NULL, m_Cert);
-#else
-    const ASN1_BIT_STRING *asnSignature;
-    X509_get0_signature(&asnSignature, NULL, m_Cert);
-#endif
-
     challengeResponse.append(challengeResponseData.data() + hashLength, 16);
-    challengeResponse.append(reinterpret_cast<char*>(asnSignature->data), asnSignature->length);
+    challengeResponse.append(getSignatureFromCert(m_Cert));
     challengeResponse.append(clientSecretData);
 
     QByteArray paddedHash = QCryptographicHash::hash(challengeResponse, hashAlgo);
@@ -298,6 +309,12 @@ NvPairingManager::pair(QString appVersion, QString pin, QSslCertificate& serverC
     }
 
     QByteArray pairingSecret = NvHTTP::getXmlStringFromHex(respXml, "pairingsecret");
+    if (pairingSecret.size() <= 16) {
+        qCritical() << "Invalid pairingsecret at stage #3";
+        m_Http.openConnectionToString(m_Http.m_BaseUrlHttp, "unpair", nullptr, REQUEST_TIMEOUT_MS);
+        return PairState::FAILED;
+    }
+
     QByteArray serverSecret = pairingSecret.left(16);
     QByteArray serverSignature = pairingSecret.mid(16);
 

app/backend/nvpairingmanager.h

@@ -37,6 +37,9 @@ private:
     QByteArray
     decrypt(const QByteArray& ciphertext, const QByteArray& key);
 
+    QByteArray
+    getSignatureFromCert(X509* cert);
+
     QByteArray
     getSignatureFromPemCert(const QByteArray& certificate);
 

app/backend/systemproperties.cpp

@@ -12,6 +12,38 @@
 #include <Windows.h>
 #endif
 
+class SystemPropertyQueryThread : public QThread
+{
+public:
+    SystemPropertyQueryThread(SystemProperties* properties)
+        : QThread(properties), m_Properties(properties)
+    {
+        setObjectName("System Properties Async Query Thread");
+    }
+
+private:
+    void run() override
+    {
+        bool hasHardwareAcceleration;
+        bool rendererAlwaysFullScreen;
+        bool supportsHdr;
+        QSize maximumResolution;
+
+        Session::getDecoderInfo(m_Properties->testWindow, hasHardwareAcceleration, rendererAlwaysFullScreen, supportsHdr, maximumResolution);
+
+        // Propagate the decoder properties to the SystemProperties singleton and emit any change signals on the main thread
+        QMetaObject::invokeMethod(m_Properties, "updateDecoderProperties",
+                                  Qt::QueuedConnection,
+                                  Q_ARG(bool, hasHardwareAcceleration),
+                                  Q_ARG(bool, rendererAlwaysFullScreen),
+                                  Q_ARG(QSize, maximumResolution),
+                                  Q_ARG(bool, supportsHdr));
+    }
+
+private:
+    SystemProperties* m_Properties;
+};
+
 SystemProperties::SystemProperties()
 {
     versionString = QString(VERSION_STR);
@@ -19,15 +51,21 @@ SystemProperties::SystemProperties()
     isRunningWayland = WMUtils::isRunningWayland();
     isRunningXWayland = isRunningWayland && QGuiApplication::platformName() == "xcb";
     usesMaterial3Theme = QLibraryInfo::version() >= QVersionNumber(6, 5, 0);
+
+#ifdef Q_OS_DARWIN
+    isDarwin = true;
+#else
+    isDarwin = false;
+#endif
+
     QString nativeArch = QSysInfo::currentCpuArchitecture();
 
 #ifdef Q_OS_WIN32
     {
         USHORT processArch, machineArch;
 
-        // Use IsWow64Process2 on TH2 and later, because it supports ARM64
+        // Use IsWow64Process2() because it doesn't lie on ARM64
-        auto fnIsWow64Process2 = (decltype(IsWow64Process2)*)GetProcAddress(GetModuleHandleA("kernel32.dll"), "IsWow64Process2");
+        if (IsWow64Process2(GetCurrentProcess(), &processArch, &machineArch)) {
-        if (fnIsWow64Process2 != nullptr && fnIsWow64Process2(GetCurrentProcess(), &processArch, &machineArch)) {
             switch (machineArch) {
             case IMAGE_FILE_MACHINE_I386:
                 nativeArch = "i386";
@@ -66,15 +104,45 @@ SystemProperties::SystemProperties()
     hasDiscordIntegration = false;
 #endif
 
-    unmappedGamepads = SdlInputHandler::getUnmappedGamepads();
+    // These will be queried asynchronously to avoid blocking the UI
+    hasHardwareAcceleration = true;
+    rendererAlwaysFullScreen = false;
+    supportsHdr = true;
+    maximumResolution = QSize(0, 0);
+}
 
-    // Populate data that requires talking to SDL. We do it all in one shot
+SystemProperties::~SystemProperties()
-    // and cache the results to speed up future queries on this data.
+{
-    querySdlVideoInfo();
+    waitForAsyncLoad();
+}
 
-    Q_ASSERT(!monitorRefreshRates.isEmpty());
+void SystemProperties::updateDecoderProperties(bool hasHardwareAcceleration, bool rendererAlwaysFullScreen, QSize maximumResolution, bool supportsHdr)
-    Q_ASSERT(!monitorNativeResolutions.isEmpty());
+{
-    Q_ASSERT(!monitorSafeAreaResolutions.isEmpty());
+    SDL_assert(testWindow);
+
+    if (hasHardwareAcceleration != this->hasHardwareAcceleration) {
+        this->hasHardwareAcceleration = hasHardwareAcceleration;
+        emit hasHardwareAccelerationChanged();
+    }
+
+    if (rendererAlwaysFullScreen != this->rendererAlwaysFullScreen) {
+        this->rendererAlwaysFullScreen = rendererAlwaysFullScreen;
+        emit rendererAlwaysFullScreenChanged();
+    }
+
+    if (maximumResolution != this->maximumResolution) {
+        this->maximumResolution = maximumResolution;
+        emit maximumResolutionChanged();
+    }
+
+    if (supportsHdr != this->supportsHdr) {
+        this->supportsHdr = supportsHdr;
+        emit supportsHdrChanged();
+    }
+
+    SDL_DestroyWindow(testWindow);
+    testWindow = nullptr;
+    SDL_QuitSubSystem(SDL_INIT_VIDEO);
 }
 
 QRect SystemProperties::getNativeResolution(int displayIndex)
@@ -95,39 +163,24 @@ int SystemProperties::getRefreshRate(int displayIndex)
     return monitorRefreshRates.value(displayIndex);
 }
 
-class QuerySdlVideoThread : public QThread
+void SystemProperties::startAsyncLoad()
 {
-public:
+    if (systemPropertyQueryThread) {
-    QuerySdlVideoThread(SystemProperties* me) :
+        // Already started/completed
-        QThread(nullptr),
+        return;
-        m_Me(me) {}
-
-    void run() override
-    {
-        m_Me->querySdlVideoInfoInternal();
     }
 
-    SystemProperties* m_Me;
+    // This isn't actually asynchronous (due to the need to synchronize with
-};
+    // SdlGamepadKeyNavigation), but we don't query it in the constructor
-
+    // because it's expensive.
-void SystemProperties::querySdlVideoInfo()
+    unmappedGamepads = SdlInputHandler::getUnmappedGamepads();
-{
+    if (!unmappedGamepads.isEmpty()) {
-    if (WMUtils::isRunningX11() || WMUtils::isRunningWayland()) {
+        emit unmappedGamepadsChanged();
-        // Use a separate thread to temporarily initialize SDL
-        // video to avoid stomping on Qt's X11 and OGL state.
-        QuerySdlVideoThread thread(this);
-        thread.start();
-        thread.wait();
     }
-    else {
-        querySdlVideoInfoInternal();
-    }
-}
-
-void SystemProperties::querySdlVideoInfoInternal()
-{
-    hasHardwareAcceleration = false;
 
+    // We initialize the video subsystem and test window on the main thread
+    // because some platforms (macOS) do not support window creation on
+    // non-main threads.
     if (SDL_InitSubSystem(SDL_INIT_VIDEO) != 0) {
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
                      "SDL_InitSubSystem(SDL_INIT_VIDEO) failed: %s",
@@ -135,64 +188,34 @@ void SystemProperties::querySdlVideoInfoInternal()
         return;
     }
 
-    // Update display related attributes (max FPS, native resolution, etc).
+    testWindow = StreamUtils::createTestWindow();
-    // We call the internal variant because we're already in a safe thread context.
-    refreshDisplaysInternal();
-
-    SDL_Window* testWindow = SDL_CreateWindow("", 0, 0, 1280, 720,
-                                              SDL_WINDOW_HIDDEN | StreamUtils::getPlatformWindowFlags());
     if (!testWindow) {
-        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                    "Failed to create test window with platform flags: %s",
+                     "Failed to create window for hardware decode test: %s",
-                    SDL_GetError());
+                     SDL_GetError());
-
+        SDL_QuitSubSystem(SDL_INIT_VIDEO);
-        testWindow = SDL_CreateWindow("", 0, 0, 1280, 720, SDL_WINDOW_HIDDEN);
+        return;
-        if (!testWindow) {
-            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                         "Failed to create window for hardware decode test: %s",
-                         SDL_GetError());
-            SDL_QuitSubSystem(SDL_INIT_VIDEO);
-            return;
-        }
     }
 
-    Session::getDecoderInfo(testWindow, hasHardwareAcceleration, rendererAlwaysFullScreen, supportsHdr, maximumResolution);
+    // Update display related attributes (max FPS, native resolution, etc).
+    //
+    // NB: SDL3 will forcefully refresh displays when a window is created,
+    // so we place this after the window creation to ensure we don't pay
+    // the penalty for mode enumeration twice.
+    refreshDisplays();
 
-    SDL_DestroyWindow(testWindow);
+    systemPropertyQueryThread = new SystemPropertyQueryThread(this);
-
+    systemPropertyQueryThread->start();
-    SDL_QuitSubSystem(SDL_INIT_VIDEO);
 }
 
-class RefreshDisplaysThread : public QThread
+void SystemProperties::waitForAsyncLoad()
 {
-public:
+    if (systemPropertyQueryThread) {
-    RefreshDisplaysThread(SystemProperties* me) :
+        systemPropertyQueryThread->wait();
-        QThread(nullptr),
-        m_Me(me) {}
-
-    void run() override
-    {
-        m_Me->refreshDisplaysInternal();
     }
-
+}
-    SystemProperties* m_Me;
-};
 
 void SystemProperties::refreshDisplays()
-{
-    if (WMUtils::isRunningX11() || WMUtils::isRunningWayland()) {
-        // Use a separate thread to temporarily initialize SDL
-        // video to avoid stomping on Qt's X11 and OGL state.
-        RefreshDisplaysThread thread(this);
-        thread.start();
-        thread.wait();
-    }
-    else {
-        refreshDisplaysInternal();
-    }
-}
-
-void SystemProperties::refreshDisplaysInternal()
 {
     if (SDL_InitSubSystem(SDL_INIT_VIDEO) != 0) {
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
@@ -202,6 +225,8 @@ void SystemProperties::refreshDisplaysInternal()
     }
 
     monitorNativeResolutions.clear();
+    monitorSafeAreaResolutions.clear();
+    monitorRefreshRates.clear();
 
     SDL_DisplayMode bestMode;
     for (int displayIndex = 0; displayIndex < SDL_GetNumVideoDisplays(); displayIndex++) {
@@ -210,8 +235,11 @@ void SystemProperties::refreshDisplaysInternal()
 
         if (StreamUtils::getNativeDesktopMode(displayIndex, &desktopMode, &safeArea)) {
             if (desktopMode.w <= 8192 && desktopMode.h <= 8192) {
-                monitorNativeResolutions.insert(displayIndex, QRect(0, 0, desktopMode.w, desktopMode.h));
+                // Keep these lists compact because their QML consumers iterate until
-                monitorSafeAreaResolutions.insert(displayIndex, QRect(0, 0, safeArea.w, safeArea.h));
+                // the first empty entry. Inserting by SDL display index is invalid if
+                // an earlier display was skipped (for example, a >8K virtual display).
+                monitorNativeResolutions.append(QRect(0, 0, desktopMode.w, desktopMode.h));
+                monitorSafeAreaResolutions.append(QRect(0, 0, safeArea.w, safeArea.h));
             }
             else {
                 SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
@@ -221,7 +249,8 @@ void SystemProperties::refreshDisplaysInternal()
 
             // Start at desktop mode and work our way up
             bestMode = desktopMode;
-            for (int i = 0; i < SDL_GetNumDisplayModes(displayIndex); i++) {
+            int numDisplayModes = SDL_GetNumDisplayModes(displayIndex);
+            for (int i = 0; i < numDisplayModes; i++) {
                 SDL_DisplayMode mode;
                 if (SDL_GetDisplayMode(displayIndex, i, &mode) == 0) {
                     if (mode.w == desktopMode.w && mode.h == desktopMode.h) {

app/backend/systemproperties.h

@@ -3,46 +3,61 @@
 #include <QObject>
 #include <QRect>
 
+#include "SDL_compat.h"
+
 class SystemProperties : public QObject
 {
     Q_OBJECT
 
-    friend class QuerySdlVideoThread;
+    friend class SystemPropertyQueryThread;
-    friend class RefreshDisplaysThread;
 
 public:
     SystemProperties();
+    ~SystemProperties();
 
-    Q_PROPERTY(bool hasHardwareAcceleration MEMBER hasHardwareAcceleration CONSTANT)
+    // Static properties queried synchronously during the constructor
-    Q_PROPERTY(bool rendererAlwaysFullScreen MEMBER rendererAlwaysFullScreen CONSTANT)
     Q_PROPERTY(bool isRunningWayland MEMBER isRunningWayland CONSTANT)
     Q_PROPERTY(bool isRunningXWayland MEMBER isRunningXWayland CONSTANT)
     Q_PROPERTY(bool isWow64 MEMBER isWow64 CONSTANT)
+    Q_PROPERTY(bool isDarwin MEMBER isDarwin CONSTANT)
     Q_PROPERTY(QString friendlyNativeArchName MEMBER friendlyNativeArchName CONSTANT)
     Q_PROPERTY(bool hasDesktopEnvironment MEMBER hasDesktopEnvironment CONSTANT)
     Q_PROPERTY(bool hasBrowser MEMBER hasBrowser CONSTANT)
     Q_PROPERTY(bool hasDiscordIntegration MEMBER hasDiscordIntegration CONSTANT)
-    Q_PROPERTY(QString unmappedGamepads MEMBER unmappedGamepads NOTIFY unmappedGamepadsChanged)
-    Q_PROPERTY(QSize maximumResolution MEMBER maximumResolution CONSTANT)
-    Q_PROPERTY(QString versionString MEMBER versionString CONSTANT)
-    Q_PROPERTY(bool supportsHdr MEMBER supportsHdr CONSTANT)
     Q_PROPERTY(bool usesMaterial3Theme MEMBER usesMaterial3Theme CONSTANT)
+    Q_PROPERTY(QString versionString MEMBER versionString CONSTANT)
 
-    Q_INVOKABLE void refreshDisplays();
+    // Properties queried asynchronously (startAsyncLoad() must be called!)
+    Q_PROPERTY(bool hasHardwareAcceleration MEMBER hasHardwareAcceleration NOTIFY hasHardwareAccelerationChanged)
+    Q_PROPERTY(bool rendererAlwaysFullScreen MEMBER rendererAlwaysFullScreen NOTIFY rendererAlwaysFullScreenChanged)
+    Q_PROPERTY(QString unmappedGamepads MEMBER unmappedGamepads NOTIFY unmappedGamepadsChanged)
+    Q_PROPERTY(QSize maximumResolution MEMBER maximumResolution NOTIFY maximumResolutionChanged)
+    Q_PROPERTY(bool supportsHdr MEMBER supportsHdr NOTIFY supportsHdrChanged)
+
+    // Either startAsyncLoad()+waitForAsyncLoad() or refreshDisplays() must be invoked first
     Q_INVOKABLE QRect getNativeResolution(int displayIndex);
     Q_INVOKABLE QRect getSafeAreaResolution(int displayIndex);
     Q_INVOKABLE int getRefreshRate(int displayIndex);
 
+    Q_INVOKABLE void startAsyncLoad();
+    Q_INVOKABLE void waitForAsyncLoad();
+    Q_INVOKABLE void refreshDisplays();
+
 signals:
     void unmappedGamepadsChanged();
+    void hasHardwareAccelerationChanged();
+    void rendererAlwaysFullScreenChanged();
+    void maximumResolutionChanged();
+    void supportsHdrChanged();
+
+private slots:
+    void updateDecoderProperties(bool hasHardwareAcceleration, bool rendererAlwaysFullScreen, QSize maximumResolution, bool supportsHdr);
 
 private:
-    void querySdlVideoInfo();
+    QThread* systemPropertyQueryThread = nullptr;
-    void querySdlVideoInfoInternal();
+    SDL_Window* testWindow = nullptr;
-    void refreshDisplaysInternal();
 
-    bool hasHardwareAcceleration;
+    // Properties set by the constructor
-    bool rendererAlwaysFullScreen;
     bool isRunningWayland;
     bool isRunningXWayland;
     bool isWow64;
@@ -50,13 +65,20 @@ private:
     bool hasDesktopEnvironment;
     bool hasBrowser;
     bool hasDiscordIntegration;
-    QString unmappedGamepads;
+    QString versionString;
+    bool usesMaterial3Theme;
+    bool isDarwin;
+
+    // Properties only set if startAsyncLoad() is called
+    bool hasHardwareAcceleration;
+    bool rendererAlwaysFullScreen;
     QSize maximumResolution;
+    bool supportsHdr;
+    QString unmappedGamepads;
+
+    // Properties set by refreshDisplays()
     QList<QRect> monitorNativeResolutions;
     QList<QRect> monitorSafeAreaResolutions;
     QList<int> monitorRefreshRates;
-    QString versionString;
-    bool supportsHdr;
-    bool usesMaterial3Theme;
 };
 

app/cli/commandlineparser.cpp

@@ -59,13 +59,6 @@ public:
 
     void showMessage(QString message, MessageType type) const
     {
-    #if defined(Q_OS_WIN32)
-        UINT flags = MB_OK | MB_TOPMOST | MB_SETFOREGROUND;
-        flags |= (type == Info ? MB_ICONINFORMATION : MB_ICONERROR);
-        QString title = "Moonlight";
-        MessageBoxW(nullptr, reinterpret_cast<const wchar_t *>(message.utf16()),
-                    reinterpret_cast<const wchar_t *>(title.utf16()), flags);
-    #endif
         message = message.endsWith('\n') ? message : message + '\n';
         fputs(qPrintable(message), type == Info ? stdout : stderr);
     }
@@ -113,7 +106,7 @@ public:
 
     QPair<int,int> getResolutionOptionValue(QString name) const
     {
-        QRegularExpression re("^(\\d+)x(\\d+)$", QRegularExpression::CaseInsensitiveOption);
+        static QRegularExpression re("^(\\d+)x(\\d+)$", QRegularExpression::CaseInsensitiveOption);
         auto match = re.match(value(name));
         if (!match.hasMatch()) {
             showError(QString("Invalid %1 format: %2").arg(name, value(name)));
@@ -202,7 +195,7 @@ GlobalCommandLineParser::ParseResult GlobalCommandLineParser::parse(const QStrin
             }
         }
 
-        parser.showError(QString("Invalid action"));
+        parser.showError("Invalid action");
     }
 }
 
@@ -386,7 +379,7 @@ void StreamCommandLineParser::parse(const QStringList &args, StreamingPreference
     parser.handleUnknownOptions();
 
     // Resolve display's width and height
-    QRegularExpression resolutionRexExp("^(720|1080|1440|4K|resolution)$");
+    static QRegularExpression resolutionRexExp("^(720|1080|1440|4K|resolution)$");
     QStringList resoOptions = parser.optionNames().filter(resolutionRexExp);
     bool displaySet = !resoOptions.isEmpty();
     if (displaySet) {

app/cli/listapps.cpp

@@ -5,10 +5,8 @@
 #include "backend/computerseeker.h"
 
 #include <QCoreApplication>
-#include <QTimer>
 
 #define COMPUTER_SEEK_TIMEOUT 30000
-#define APP_SEEK_TIMEOUT 10000
 
 namespace CliListApps
 {
@@ -16,8 +14,7 @@ namespace CliListApps
 enum State {
     StateInit,
     StateSeekComputer,
-    StateListApp,
+    StateListApps,
-    StateSeekApp,
     StateFailure,
 };
 
@@ -26,7 +23,6 @@ class Event
 public:
     enum Type {
         ComputerFound,
-        ComputerUpdated,
         ComputerSeekTimedout,
         Executed,
     };
@@ -66,9 +62,6 @@ public:
                            q, &Launcher::onComputerSeekTimeout);
                 m_ComputerSeeker->start(COMPUTER_SEEK_TIMEOUT);
 
-                q->connect(m_ComputerManager, &ComputerManager::computerStateChanged,
-                           q, &Launcher::onComputerUpdated);
-
                 m_BoxArtManager = new BoxArtManager(q);
 
                 if (m_Arguments.isVerbose()) {
@@ -88,12 +81,28 @@ public:
         case Event::ComputerFound:
             if (m_State == StateSeekComputer) {
                 if (event.computer->pairState == NvComputer::PS_PAIRED) {
-                    m_State = StateSeekApp;
+                    m_State = StateListApps;
                     m_Computer = event.computer;
-                    m_TimeoutTimer->start(APP_SEEK_TIMEOUT);
+
                     if (m_Arguments.isVerbose()) {
                         fprintf(stdout, "Loading app list...\n");
                     }
+
+                    // To avoid race conditions where ComputerSeeker stops async polling, but
+                    // ComputerManager is yet to update the app list, we will explicitly fetch the latest app list.
+                    // Otherwise, it becomes complicated as we would have to guess whether ComputerManager
+                    // would emit 1 signal (the list did not change) or 2 signals (indicating that the list has changed)
+                    try {
+                        NvHTTP http{m_Computer};
+
+                        const auto appList = http.getAppList();
+                        m_Arguments.isPrintCSV() ? printAppsCSV(appList) : printApps(appList);
+
+                        QCoreApplication::exit(0);
+                    } catch (std::exception& exception) {
+                        fprintf(stderr, "%s\n", exception.what());
+                        QCoreApplication::exit(1);
+                    }
                 } else {
                     m_State = StateFailure;
                     fprintf(stderr, "%s\n", qPrintable(QObject::tr("Computer %1 has not been paired. "
@@ -104,14 +113,6 @@ public:
                 }
             }
             break;
-        // Occurs when a computer is updated
-        case Event::ComputerUpdated:
-            if (m_State == StateSeekApp) {
-                m_Arguments.isPrintCSV() ? printAppsCSV(m_Computer->appList) : printApps(m_Computer->appList);
-
-                QCoreApplication::exit(0);
-            }
-            break;
         }
     }
 
@@ -146,7 +147,6 @@ public:
     BoxArtManager *m_BoxArtManager;
     NvComputer *m_Computer;
     State m_State;
-    QTimer *m_TimeoutTimer;
     ListCommandLineParser m_Arguments;
 };
 
@@ -157,11 +157,7 @@ Launcher::Launcher(QString computer, ListCommandLineParser arguments, QObject *p
     Q_D(Launcher);
     d->m_ComputerName = computer;
     d->m_State = StateInit;
-    d->m_TimeoutTimer = new QTimer(this);
-    d->m_TimeoutTimer->setSingleShot(true);
     d->m_Arguments = arguments;
-    connect(d->m_TimeoutTimer, &QTimer::timeout,
-            this, &Launcher::onComputerSeekTimeout);
 }
 
 Launcher::~Launcher()
@@ -197,12 +193,4 @@ void Launcher::onComputerSeekTimeout()
     d->handleEvent(event);
 }
 
-void Launcher::onComputerUpdated(NvComputer *computer)
-{
-    Q_D(Launcher);
-    Event event(Event::ComputerUpdated);
-    event.computer = computer;
-    d->handleEvent(event);
-}
-
 }

app/cli/listapps.h

@@ -27,7 +27,6 @@ public:
 
 private slots:
     void onComputerFound(NvComputer *computer);
-    void onComputerUpdated(NvComputer *computer);
     void onComputerSeekTimeout();
 
 private:

app/cli/startstream.cpp

@@ -162,7 +162,7 @@ public:
 
     QString getCurrentAppName() const
     {
-        for (const NvApp& app : m_Computer->appList) {
+        for (const NvApp& app : std::as_const(m_Computer->appList)) {
             if (m_Computer->currentGameId == app.id) {
                 return app.name;
             }

app/deploy/linux/appimage/0001-Vulkan-Don-t-try-to-reuse-old-swapchain.patch

@@ -1,40 +0,0 @@
-From 78261eb6e2fe728fa5d3843b5b8962b1ca559b7e Mon Sep 17 00:00:00 2001
-From: David Rosca <nowrep@gmail.com>
-Date: Sat, 16 Dec 2023 14:52:01 +0100
-Subject: [PATCH] Vulkan: Don't try to reuse old swapchain
-
----
- src/vulkan/swapchain.c | 12 ++++++++++--
- 1 file changed, 10 insertions(+), 2 deletions(-)
-
-diff --git a/src/vulkan/swapchain.c b/src/vulkan/swapchain.c
-index 0646e57c..c0b07ce4 100644
---- a/src/vulkan/swapchain.c
-+++ b/src/vulkan/swapchain.c
-@@ -612,13 +612,21 @@ static bool vk_sw_recreate(pl_swapchain sw, int w, int h)
-     }
- #endif
- 
-+    {
-+        pl_gpu_flush(gpu);
-+        vk_wait_idle(vk);
-+        for (int i = 0; i < vk->pool_graphics->num_queues; i++)
-+            vk->QueueWaitIdle(vk->pool_graphics->queues[i]);
-+        vk->DestroySwapchainKHR(vk->dev, p->swapchain, PL_VK_ALLOC);
-+    }
-+
-     // Calling `vkCreateSwapchainKHR` puts sinfo.oldSwapchain into a retired
-     // state whether the call succeeds or not, so we always need to garbage
-     // collect it afterwards - asynchronously as it may still be in use
--    sinfo.oldSwapchain = p->swapchain;
-+    /* sinfo.oldSwapchain = p->swapchain; */
-     p->swapchain = VK_NULL_HANDLE;
-     VkResult res = vk->CreateSwapchainKHR(vk->dev, &sinfo, PL_VK_ALLOC, &p->swapchain);
--    vk_dev_callback(vk, VK_CB_FUNC(destroy_swapchain), vk, vk_wrap_handle(sinfo.oldSwapchain));
-+    /* vk_dev_callback(vk, VK_CB_FUNC(destroy_swapchain), vk, vk_wrap_handle(sinfo.oldSwapchain)); */
-     PL_VK_ASSERT(res, "vk->CreateSwapchainKHR(...)");
- 
-     // Get the new swapchain images
--- 
-2.43.0
-

app/deploy/linux/appimage/libplacebo-disable-internally-synchronized-queues.patch

@@ -0,0 +1,13 @@
+diff --git a/src/vulkan/context.c b/src/vulkan/context.c
+index bc9084ad..52290154 100644
+--- a/src/vulkan/context.c
++++ b/src/vulkan/context.c
+@@ -265,7 +265,7 @@ static_assert(PL_ARRAY_SIZE(pl_vulkan_recommended_extensions) + 1 ==
+ #ifdef VK_KHR_internally_synchronized_queues
+ static const VkPhysicalDeviceInternallySynchronizedQueuesFeaturesKHR synchronized_queues = {
+     .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_INTERNALLY_SYNCHRONIZED_QUEUES_FEATURES_KHR,
+-    .internallySynchronizedQueues = true,
++    .internallySynchronizedQueues = false,
+ };
+ #endif
+ 

app/deploy/linux/com.moonlight_stream.Moonlight.appdata.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<component type="desktop">
+<component type="desktop-application">
 	<id>com.moonlight_stream.Moonlight</id>
 	<metadata_license>CC0-1.0</metadata_license>
 	<project_license>GPL-3.0+</project_license>
@@ -10,7 +10,7 @@
 		<p>Moonlight can stream games and other applications from another PC with Sunshine or GeForce Experience software installed.</p>
 		<p>Features include:</p>
 		<ul>
-			<li>Hardware accelerated video decoding with VAAPI, VDPAU, and NVDEC support</li>
+			<li>Hardware accelerated video decoding with VAAPI, VDPAU, and Vulkan Video support</li>
 			<li>H.264, HEVC, and AV1 codec support</li>
 			<li>7.1 surround sound audio support</li>
 			<li>10-point multitouch support</li>
@@ -23,17 +23,96 @@
 	<url type="homepage">https://moonlight-stream.org</url>
 	<url type="bugtracker">https://github.com/moonlight-stream/moonlight-qt/issues</url>
 	<url type="help">https://github.com/moonlight-stream/moonlight-docs/wiki/Setup-Guide</url>
+	<url type="vcs-browser">https://github.com/moonlight-stream/moonlight-qt</url>
+	<developer id="org.moonlight-stream">
+		<name>Moonlight Game Streaming Team</name>
+	</developer>
+	<update_contact>cameron@moonlight-stream.org</update_contact>
+	<launchable type="desktop-id">com.moonlight_stream.Moonlight.desktop</launchable>
+	<provides>
+		<binary>moonlight</binary>
+	</provides>
+	<content_rating type="oars-1.1" />	
+
+	<branding>
+		<color type="primary" scheme_preference="light">#710085</color>
+		<color type="primary" scheme_preference="dark">#55285d</color>
+	</branding>
 
 	<screenshots>
 		<screenshot type="default">
 			<image>https://moonlight-stream.org/appstream_resources/moonlight_screenshot_1.png</image>
+			<caption>Host selection page showing local PCs</caption>
 		</screenshot>
 		<screenshot>
 			<image>https://moonlight-stream.org/appstream_resources/moonlight_screenshot_2.png</image>
+			<caption>Settings page displaying streaming options</caption>
 		</screenshot>
 	</screenshots>
 
 	<releases>
+		<release version="6.2.0" date="2026-10-03">
+			<description>
+				<p>New features:</p>
+				<ul>
+					<li>Ctrl+Alt+Shift+K has been added to toggle system keyboard grab</li>
+					<li>Added support for DualSense adaptive triggers (requires a compatible host)</li>
+					<li>Gamepads with a second trackpad can now be passed to the host (requires host support)</li>
+					<li>Client identifiers are now provided to the host to allow client-specific session management</li>
+					<li>Added an option to disable pre-launch warnings</li>
+				</ul>
+				<p>Behavior Changes:</p>
+				<ul>
+					<li>Most video renderers now use full range color instead of limited range</li>
+					<li>The cursor is now also locked to the video area in single display borderless windowed scenarios. This was previously only done in true full-screen mode.</li>
+					<li>The cursor is no longer captured by default in windowed mode. Clicking on the streaming window or pressing Ctrl+Alt+Shift+Z will capture the cursor.</li>
+					<li>GPUs on non-x86 Linux platforms are now assumed to be slow by default, which enables a number of optimizations for improved performance. GL_IS_SLOW=0/VULKAN_IS_SLOW=0 can be set at runtime to override this.</li>
+					<li>The default streaming resolution for new installs is now 1080p instead of 720p.</li>
+					<li>Video bitrate no longer resets when adjusting resolution or frame rate if it's already been manually adjusted</li>
+				</ul>
+				<p>Security:</p>
+				<ul>
+					<li>CVE-2026-33546, CVE-2026-33547, and CVE-2026-41210 have been fixed</li>
+					<li>These vulnerabilities could allow a malicious host to crash Moonlight when connecting</li>
+				</ul>
+				<p>Bugfixes:</p>
+				<ul>
+					<li>Reduced background CPU usage</li>
+					<li>Improved startup, settings page, and stream load times</li>
+					<li>Optimized the EGL/GLES renderer to improve performance on low end GPUs and embedded devices</li>
+					<li>Fixed EGL/GLES renderer failures under X11 when GLX was used for the UI</li>
+					<li>Improved readability of the statistics overlay by adding an outline</li>
+					<li>Improved timing accuracy in the statistics overlay</li>
+					<li>Improved performance when multiple gamepads are sending input simultaneously</li>
+					<li>Improved performance when recovering from dropped network packets</li>
+					<li>Fixed black or green padding being rendered on the bottom or right side of the video stream when streaming from certain hosts</li>
+					<li>Fixed horizontal scroll direction not being correctly inverted when requested</li>
+					<li>Fixed Moonlight not exiting after an abnormal stream termination when launched via the CLI</li>
+					<li>Fixed failure to start on Linux systems where desktop OpenGL is not available</li>
+					<li>Fixed broken overlay rendering on PowerVR systems using the proprietary driver</li>
+					<li>Fixed automatic selection of AV1 on systems where HEVC is not available</li>
+					<li>Fixed instability when using VAAPI decoding under X11</li>
+					<li>Fixed small deviations in chroma co-siting and color conversion</li>
+					<li>Fixed suboptimal format selection on some V4L2 decoders</li>
+					<li>Fixed handling of some non-US keyboard layouts</li>
+					<li>Fixed stale app list being displayed when using CLI commands</li>
+					<li>Fixed handling of IPv6 literals that are not URL-escaped</li>
+					<li>Fixed AV1 Vulkan Video decoding on newer versions of FFmpeg</li>
+					<li>Fixed Ctrl+C/SIGTERM when running from the console</li>
+					<li>Fixed several GUI interoperability issues with Qt 6.9 and later</li>
+					<li>Fixed the IME or software keyboard being unexpectedly displayed in various situations</li>
+					<li>Fixed launching in a new VT while a Wayland compositor is running</li>
+					<li>Fixed moving focus from the app grid into the toolbar via the gamepad or keyboard</li>
+					<li>Fixed a possible crash in the Vulkan renderer when disabling an overlay</li>
+					<li>Fixed keyboard grab not working under sdl2-compat on Wayland compositors that lack support for keyboard-shortcuts-inhibit-unstable-v1</li>
+					<li>Fixed CLI stream launch causing the saved manual address to be overwritten</li>
+					<li>Fixed distinguishing between Enter and Numpad Enter keys (requires updated host software)</li>
+					<li>Fixed mDNS discovering unexpected devices after running for a period of time</li>
+					<li>Fixed libdecor-gtk window decorations not being displayed on the streaming window</li>
+					<li>Updated community-contributed translations from Weblate</li>
+				</ul>
+			</description>
+		</release>
 		<release version="6.1.0" date="2024-09-16">
 			<description>
 				<p>New features:</p>
@@ -816,19 +895,4 @@
 		</release>
 	</releases>
 
-	<categories>
-		<category>Game</category>
-		<category>Qt</category>
-	</categories>
-
-	<developer_name>Moonlight Game Streaming Team</developer_name>
-	<update_contact>cameron@moonlight-stream.org</update_contact>
-
-	<launchable type="desktop-id">com.moonlight_stream.Moonlight.desktop</launchable>
-
-	<provides>
-		<binary>moonlight</binary>
-	</provides>
-
-	<content_rating type="oars-1.0" />
 </component>

app/deploy/linux/com.moonlight_stream.Moonlight.desktop

@@ -5,5 +5,5 @@ Exec=moonlight
 Icon=moonlight
 Terminal=false
 Type=Application
-Categories=Qt;Game;
+Categories=Qt;Game;Network;RemoteAccess;
 Keywords=nvidia;gamestream;stream;sunshine;remote play;

app/deploy/linux/libva-probe.c

@@ -0,0 +1,36 @@
+/*
+ * libva-probe: loadability oracle for the AppImage AppRun.
+ *
+ * Moonlight and the bundled FFmpeg import libva through symbols carrying
+ * VA_API_* ELF version nodes. Whether the libva installed on the host can
+ * satisfy those requirements cannot be inferred portably from file names or
+ * loader caches, so this program embeds the same DT_NEEDED entries and
+ * versioned symbol references as those binaries without ever calling into
+ * them: either the dynamic loader resolves everything and main() runs (the
+ * host libva is usable), or the exec itself fails and AppRun must fall back
+ * to the build-environment libva staged next to this binary.
+ *
+ * scripts/build-appimage.sh verifies at build time that this file references
+ * every VA_API_* node required by the binaries shipped in the AppImage, so
+ * it stays automatically in sync with the libva usage there.
+ */
+
+#include <stddef.h>
+
+#include <va/va.h>
+#include <va/va_x11.h>
+
+/* Address references are enough: they produce relocations against the
+ * versioned symbols, which is what makes the loader check the host's
+ * VA_API_* version nodes. The functions must never actually be called.
+ * volatile keeps the table (and its relocations) alive through -O2. */
+static void *volatile requirements[] = {
+    (void *)vaCreateSurfaces, /* libva.so.2, VA_API_0.33.0 */
+    (void *)vaMapBuffer2,     /* libva.so.2, 2.21+ */
+    (void *)vaGetDisplay,     /* libva-x11.so.2 */
+};
+
+int main(void)
+{
+    return requirements[0] == NULL;
+}

app/deploy/steamlink/moonlight.sh

@@ -9,6 +9,11 @@ HOME=/usr/local/moonlight
 # https://github.com/moonlight-stream/moonlight-qt/issues/697
 export SDL_ENABLE_STEAM_CONTROLLERS=1
 
+# Disable gamepad sensors by default to avoid excessive CPU
+# usage that can cause audio glitches. Remove the following
+# line to enable gamepad sensors.
+export SENSOR_REPORT_RATE_LIMIT_HZ=0
+
 # Renice PE_Single_CPU which seems to host A/V stuff
 renice -10 -p $(pidof PE_Single_CPU)
 

app/gui/AppView.qml

@@ -38,7 +38,7 @@ CenteredGridView {
         activated = true
 
         // Highlight the first item if a gamepad is connected
-        if (currentIndex == -1 && SdlGamepadKeyNavigation.getConnectedGamepads() > 0) {
+        if (currentIndex === -1 && SdlGamepadKeyNavigation.getConnectedGamepads() > 0) {
             currentIndex = 0
         }
 
@@ -94,9 +94,9 @@ CenteredGridView {
                 // the image size checks if this is not an app collector game. We know the officially
                 // supported games all have box art, so this check is not required.
                 if (!model.isAppCollectorGame &&
-                    ((sourceSize.width == 130 && sourceSize.height == 180) || // GFE 2.0 placeholder image
+                    ((sourceSize.width === 130 && sourceSize.height === 180) || // GFE 2.0 placeholder image
-                     (sourceSize.width == 628 && sourceSize.height == 888) || // GFE 3.0 placeholder image
+                     (sourceSize.width === 628 && sourceSize.height === 888) || // GFE 3.0 placeholder image
-                     (sourceSize.width == 200 && sourceSize.height == 266)))  // Our no_app_image.png
+                     (sourceSize.width === 200 && sourceSize.height === 266)))  // Our no_app_image.png
                 {
                     isPlaceholder = true
                 }
@@ -123,20 +123,18 @@ CenteredGridView {
 
             sourceComponent: Item {
                 RoundButton {
+                    // Don't steal focus from the toolbar buttons
+                    focusPolicy: Qt.NoFocus
+
                     anchors.horizontalCenterOffset: appIcon.isPlaceholder ? -47 : 0
                     anchors.verticalCenterOffset: appIcon.isPlaceholder ? -75 : -60
                     anchors.centerIn: parent
                     implicitWidth: 85
                     implicitHeight: 85
 
-                    Image {
+                    icon.source: "qrc:/res/play_arrow_FILL1_wght700_GRAD200_opsz48.svg"
-                        source: "qrc:/res/play_arrow_FILL1_wght700_GRAD200_opsz48.svg"
+                    icon.width: 75
-                        anchors.centerIn: parent
+                    icon.height: 75
-                        sourceSize {
-                            width: 75
-                            height: 75
-                        }
-                    }
 
                     onClicked: {
                         launchOrResumeSelectedApp(true)
@@ -151,20 +149,18 @@ CenteredGridView {
                 }
 
                 RoundButton {
+                    // Don't steal focus from the toolbar buttons
+                    focusPolicy: Qt.NoFocus
+
                     anchors.horizontalCenterOffset: appIcon.isPlaceholder ? 47 : 0
                     anchors.verticalCenterOffset: appIcon.isPlaceholder ? -75 : 60
                     anchors.centerIn: parent
                     implicitWidth: 85
                     implicitHeight: 85
 
-                    Image {
+                    icon.source: "qrc:/res/stop_FILL1_wght700_GRAD200_opsz48.svg"
-                        source: "qrc:/res/stop_FILL1_wght700_GRAD200_opsz48.svg"
+                    icon.width: 75
-                        anchors.centerIn: parent
+                    icon.height: 75
-                        sourceSize {
-                            width: 75
-                            height: 75
-                        }
-                    }
 
                     onClicked: {
                         doQuitGame()
@@ -298,19 +294,17 @@ CenteredGridView {
             asynchronous: true
             sourceComponent: NavigableMenu {
                 id: appContextMenu
+                initiator: appContextMenuLoader.parent
                 NavigableMenuItem {
-                    parentMenu: appContextMenu
                     text: model.running ? qsTr("Resume Game") : qsTr("Launch Game")
                     onTriggered: launchOrResumeSelectedApp(true)
                 }
                 NavigableMenuItem {
-                    parentMenu: appContextMenu
                     text: qsTr("Quit Game")
                     onTriggered: doQuitGame()
                     visible: model.running
                 }
                 NavigableMenuItem {
-                    parentMenu: appContextMenu
                     checkable: true
                     checked: model.directLaunch
                     text: qsTr("Direct Launch")
@@ -323,7 +317,6 @@ CenteredGridView {
                     ToolTip.visible: hovered
                 }
                 NavigableMenuItem {
-                    parentMenu: appContextMenu
                     checkable: true
                     checked: model.hidden
                     text: qsTr("Hide Game")
@@ -339,6 +332,19 @@ CenteredGridView {
         }
     }
 
+    Row {
+        anchors.centerIn: parent
+        spacing: 5
+        visible: appGrid.count === 0
+
+        Label {
+            text: qsTr("This computer doesn't seem to have any applications or some applications are hidden")
+            font.pointSize: 20
+            verticalAlignment: Text.AlignVCenter
+            wrapMode: Text.Wrap
+        }
+    }
+
     NavigableMessageDialog {
         id: quitAppDialog
         property string appName : ""

app/gui/AutoResizingComboBox.qml

@@ -50,4 +50,12 @@ ComboBox {
     popup.onAboutToHide: {
         SdlGamepadKeyNavigation.setUiNavMode(true)
     }
+
+    Keys.onLeftPressed: {
+        decrementCurrentIndex()
+    }
+
+    Keys.onRightPressed: {
+        incrementCurrentIndex()
+    }
 }

app/gui/CenteredGridView.qml

@@ -2,10 +2,6 @@ import QtQuick 2.9
 import QtQuick.Controls 2.2
 
 GridView {
-    // Detect Qt 5.11 or earlier using presence of synchronousDrag.
-    // Prior to 5.12, the leftMargin and rightMargin values did not work.
-    property bool hasBrokenMargins: this.synchronousDrag === undefined
-
     property int minMargin: 10
     property real availableWidth: (parent.width - 2 * minMargin)
     property int itemsPerRow: availableWidth / cellWidth
@@ -15,11 +11,6 @@ GridView {
     function updateMargins() {
         leftMargin = horizontalMargin
         rightMargin = horizontalMargin
-
-        if (hasBrokenMargins) {
-            anchors.leftMargin = leftMargin
-            anchors.rightMargin = rightMargin
-        }
     }
 
     onHorizontalMarginChanged: {
@@ -27,15 +18,6 @@ GridView {
     }
 
     Component.onCompleted: {
-        if (hasBrokenMargins) {
-            // This will cause an anchor conflict with the parent StackView
-            // which breaks animation, but otherwise the grid will not be
-            // centered in the window.
-            anchors.fill = parent
-            anchors.topMargin = topMargin
-            anchors.bottomMargin = bottomMargin
-        }
-
         updateMargins()
     }
 

app/gui/CliPair.qml

@@ -53,6 +53,7 @@ Item {
 
         BusyIndicator {
             id: stageSpinner
+            running: visible
         }
 
         Label {

app/gui/CliQuitStreamSegue.qml

@@ -34,6 +34,7 @@ Item {
 
         BusyIndicator {
             id: stageSpinner
+            running: visible
         }
 
         Label {

app/gui/CliStartStreamSegue.qml

@@ -52,6 +52,7 @@ Item {
 
         BusyIndicator {
             id: stageSpinner
+            running: visible
         }
 
         Label {

app/gui/NavigableDialog.qml

@@ -1,17 +1,13 @@
 import QtQuick 2.0
-import QtQuick.Controls 2.2
+import QtQuick.Controls 2.5
 
 Dialog {
-    // We should use Overlay.overlay here but that's not available in Qt 5.9 :(
+    modal: true
-    parent: ApplicationWindow.contentItem
+    anchors.centerIn: Overlay.overlay
 
-    x: Math.round((parent.width - width) / 2)
+    onClosed: {
-    y: Math.round((parent.height - height) / 2)
+        // We must force focus back to the last item. If we don't,
-
+        // gamepad and keyboard navigation will break after a
-    onAboutToHide: {
-        // We must force focus back to the last item for platforms without
-        // support for more than one active window like Steam Link. If
-        // we don't, gamepad and keyboard navigation will break after a
         // dialog appears.
         stackView.forceActiveFocus()
     }

app/gui/NavigableItemDelegate.qml

@@ -17,6 +17,11 @@ ItemDelegate {
     }
     Keys.onUpPressed: {
         grid.moveCurrentIndexUp()
+
+        // If we've reached the top of the grid, move focus to the toolbar
+        if (grid.currentItem === this) {
+            nextItemInFocusChain(false).forceActiveFocus(Qt.TabFocus)
+        }
     }
     Keys.onReturnPressed: {
         clicked()

app/gui/NavigableMenu.qml

@@ -2,13 +2,18 @@ import QtQuick 2.0
 import QtQuick.Controls 2.2
 
 Menu {
+    property var initiator
+
     onOpened: {
-        // Give focus to the first visible and enabled menu item
+        // If the initiating object currently has keyboard focus,
-        for (var i = 0; i < count; i++) {
+        // give focus to the first visible and enabled menu item
-            var item = itemAt(i)
+        if (initiator.focus) {
-            if (item.visible && item.enabled) {
+            for (var i = 0; i < count; i++) {
-                item.forceActiveFocus(Qt.TabFocusReason)
+                var item = itemAt(i)
-                break
+                if (item.visible && item.enabled) {
+                    item.forceActiveFocus(Qt.TabFocusReason)
+                    break
+                }
             }
         }
     }

app/gui/NavigableMenuItem.qml

@@ -2,10 +2,6 @@ import QtQuick 2.0
 import QtQuick.Controls 2.2
 
 MenuItem {
-    // Qt 5.10 has a menu property, but we need to support 5.9
-    // so we must make our own.
-    property Menu parentMenu
-
     // Ensure focus can't be given to an invisible item
     enabled: visible
     height: visible ? implicitHeight : 0
@@ -15,7 +11,7 @@ MenuItem {
         // We must close the context menu first or
         // it can steal focus from any dialogs that
         // onTriggered may spawn.
-        parentMenu.close()
+        menu.close()
     }
 
     Keys.onReturnPressed: {
@@ -27,6 +23,6 @@ MenuItem {
     }
 
     Keys.onEscapePressed: {
-        parentMenu.close()
+        menu.close()
     }
 }

app/gui/NavigableMessageDialog.qml

@@ -15,7 +15,9 @@ NavigableDialog {
 
     onOpened: {
         // Force keyboard focus on the label so keyboard navigation works
-        dialogLabel.forceActiveFocus()
+        if (dialogButtonBox.count > 0) {
+            dialogButtonBox.itemAt(dialogButtonBox.count - 1).forceActiveFocus(Qt.TabFocus)
+        }
     }
 
     RowLayout {
@@ -24,6 +26,7 @@ NavigableDialog {
         BusyIndicator {
             id: dialogSpinner
             visible: false
+            running: visible
         }
 
         Image {
@@ -51,18 +54,6 @@ NavigableDialog {
             // will cause word wrap to kick in.
             Layout.maximumWidth: 400
             Layout.maximumHeight: 400
-
-            Keys.onReturnPressed: {
-                accept()
-            }
-
-            Keys.onEnterPressed: {
-                accept()
-            }
-
-            Keys.onEscapePressed: {
-                reject()
-            }
         }
     }
 
@@ -70,6 +61,15 @@ NavigableDialog {
         id: dialogButtonBox
         standardButtons: dialog.standardButtons
 
+        delegate: Button {
+            flat: true
+
+            Keys.onReturnPressed: clicked()
+            Keys.onEnterPressed: clicked()
+            Keys.onRightPressed: nextItemInFocusChain(true).forceActiveFocus(Qt.TabFocus)
+            Keys.onLeftPressed: nextItemInFocusChain(false).forceActiveFocus(Qt.TabFocus)
+        }
+
         onHelpRequested: {
             Qt.openUrlExternally(helpUrl)
             close()

app/gui/NavigableToolButton.qml

@@ -7,17 +7,9 @@ ToolButton {
 
     activeFocusOnTab: true
 
-    // FIXME: We're using an Image here rather than icon.source because
+    icon.source: iconSource
-    // icons don't work on Qt 5.9 LTS.
+    icon.width: background.width
-    Image {
+    icon.height: background.height
-        id: image
-        source: iconSource
-        anchors.centerIn: parent.background
-        sourceSize {
-            width: parent.background.width * 1.10
-            height: parent.background.height * 1.10
-        }
-    }
 
     // This determines the size of the Material highlight. We increase it
     // from the default because we use larger than normal icons for TV readability.

app/gui/PcView.qml

@@ -35,7 +35,7 @@ CenteredGridView {
         ComputerManager.computerAddCompleted.connect(addComplete)
 
         // Highlight the first item if a gamepad is connected
-        if (currentIndex == -1 && SdlGamepadKeyNavigation.getConnectedGamepads() > 0) {
+        if (currentIndex === -1 && SdlGamepadKeyNavigation.getConnectedGamepads() > 0) {
             currentIndex = 0
         }
     }
@@ -90,6 +90,7 @@ CenteredGridView {
         BusyIndicator {
             id: searchSpinner
             visible: StreamingPreferences.enableMdns
+            running: visible
         }
 
         Label {
@@ -143,6 +144,7 @@ CenteredGridView {
             width: 75
             height: 75
             visible: model.statusUnknown
+            running: visible
         }
 
         Label {
@@ -163,13 +165,13 @@ CenteredGridView {
             asynchronous: true
             sourceComponent: NavigableMenu {
                 id: pcContextMenu
+                initiator: pcContextMenuLoader.parent
                 MenuItem {
                     text: qsTr("PC Status: %1").arg(model.online ? qsTr("Online") : qsTr("Offline"))
                     font.bold: true
                     enabled: false
                 }
                 NavigableMenuItem {
-                    parentMenu: pcContextMenu
                     text: qsTr("View All Apps")
                     onTriggered: {
                         var component = Qt.createComponent("AppView.qml")
@@ -179,13 +181,11 @@ CenteredGridView {
                     visible: model.online && model.paired
                 }
                 NavigableMenuItem {
-                    parentMenu: pcContextMenu
                     text: qsTr("Wake PC")
                     onTriggered: computerModel.wakeComputer(index)
                     visible: !model.online && model.wakeable
                 }
                 NavigableMenuItem {
-                    parentMenu: pcContextMenu
                     text: qsTr("Test Network")
                     onTriggered: {
                         computerModel.testConnectionForComputer(index)
@@ -194,7 +194,6 @@ CenteredGridView {
                 }
 
                 NavigableMenuItem {
-                    parentMenu: pcContextMenu
                     text: qsTr("Rename PC")
                     onTriggered: {
                         renamePcDialog.pcIndex = index
@@ -203,7 +202,6 @@ CenteredGridView {
                     }
                 }
                 NavigableMenuItem {
-                    parentMenu: pcContextMenu
                     text: qsTr("Delete PC")
                     onTriggered: {
                         deletePcDialog.pcIndex = index
@@ -212,7 +210,6 @@ CenteredGridView {
                     }
                 }
                 NavigableMenuItem {
-                    parentMenu: pcContextMenu
                     text: qsTr("View Details")
                     onTriggered: {
                         showPcDetailsDialog.pcDetails = model.details
@@ -293,10 +290,6 @@ CenteredGridView {
 
     NavigableMessageDialog {
         id: pairDialog
-
-        // Pairing dialog must be modal to prevent double-clicks from triggering
-        // pairing twice
-        modal: true
         closePolicy: Popup.CloseOnEscape
 
         // don't allow edits to the rest of the window while open

app/gui/QuitSegue.qml

@@ -60,6 +60,7 @@ Item {
 
         BusyIndicator {
             id: stageSpinner
+            running: visible
         }
 
         Label {

app/gui/SettingsView.qml

@@ -281,11 +281,13 @@ Flickable {
                                 StreamingPreferences.width = selectedWidth
                                 StreamingPreferences.height = selectedHeight
 
-                                StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
+                                if (StreamingPreferences.autoAdjustBitrate) {
-                                                                                                          StreamingPreferences.height,
+                                    StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
-                                                                                                          StreamingPreferences.fps,
+                                                                                                              StreamingPreferences.height,
-                                                                                                          StreamingPreferences.enableYUV444);
+                                                                                                              StreamingPreferences.fps,
-                                slider.value = StreamingPreferences.bitrateKbps
+                                                                                                              StreamingPreferences.enableYUV444);
+                                    slider.value = StreamingPreferences.bitrateKbps
+                                }
                             }
 
                             lastIndexValue = currentIndex
@@ -447,11 +449,13 @@ Flickable {
                             if (StreamingPreferences.fps !== selectedFps) {
                                 StreamingPreferences.fps = selectedFps
 
-                                StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
+                                if (StreamingPreferences.autoAdjustBitrate) {
-                                                                                                          StreamingPreferences.height,
+                                    StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
-                                                                                                          StreamingPreferences.fps,
+                                                                                                              StreamingPreferences.height,
-                                                                                                          StreamingPreferences.enableYUV444);
+                                                                                                              StreamingPreferences.fps,
-                                slider.value = StreamingPreferences.bitrateKbps
+                                                                                                              StreamingPreferences.enableYUV444);
+                                    slider.value = StreamingPreferences.bitrateKbps
+                                }
                             }
 
                             lastIndexValue = currentIndex
@@ -678,26 +682,47 @@ Flickable {
                     wrapMode: Text.Wrap
                 }
 
-                Slider {
+                Row {
-                    id: slider
+                    width: parent.width
+                    spacing: 5
 
-                    value: StreamingPreferences.bitrateKbps
+                    Slider {
+                        id: slider
 
-                    stepSize: 500
+                        value: StreamingPreferences.bitrateKbps
-                    from : 500
-                    to: StreamingPreferences.unlockBitrate ? 500000 : 150000
 
-                    snapMode: "SnapOnRelease"
+                        stepSize: 500
-                    width: Math.min(bitrateDesc.implicitWidth, parent.width)
+                        from : 500
+                        to: StreamingPreferences.unlockBitrate ? 500000 : 150000
 
-                    onValueChanged: {
+                        snapMode: "SnapOnRelease"
-                        bitrateTitle.text = qsTr("Video bitrate: %1 Mbps").arg(value / 1000.0)
+                        width: Math.min(bitrateDesc.implicitWidth, parent.width - (resetBitrateButton.visible ? resetBitrateButton.width + parent.spacing : 0))
-                        StreamingPreferences.bitrateKbps = value
+
+                        onValueChanged: {
+                            bitrateTitle.text = qsTr("Video bitrate: %1 Mbps").arg(value / 1000.0)
+                            StreamingPreferences.bitrateKbps = value
+                        }
+
+                        onMoved: {
+                            StreamingPreferences.autoAdjustBitrate = false
+                        }
+
+                        Component.onCompleted: {
+                            // Refresh the text after translations change
+                            languageChanged.connect(valueChanged)
+                        }
                     }
 
-                    Component.onCompleted: {
+                    Button {
-                        // Refresh the text after translations change
+                        id: resetBitrateButton
-                        languageChanged.connect(valueChanged)
+                        text: qsTr("Use Default (%1 Mbps)").arg(StreamingPreferences.getDefaultBitrate(StreamingPreferences.width, StreamingPreferences.height, StreamingPreferences.fps, StreamingPreferences.enableYUV444) / 1000.0)
+                        visible: StreamingPreferences.bitrateKbps !== StreamingPreferences.getDefaultBitrate(StreamingPreferences.width, StreamingPreferences.height, StreamingPreferences.fps, StreamingPreferences.enableYUV444)
+                        onClicked: {
+                            var defaultBitrate = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width, StreamingPreferences.height, StreamingPreferences.fps, StreamingPreferences.enableYUV444)
+                            StreamingPreferences.bitrateKbps = defaultBitrate
+                            StreamingPreferences.autoAdjustBitrate = true
+                            slider.value = defaultBitrate
+                        }
                     }
                 }
 
@@ -787,38 +812,64 @@ Flickable {
                     ToolTip.text: qsTr("Fullscreen generally provides the best performance, but borderless windowed may work better with features like macOS Spaces, Alt+Tab, screenshot tools, on-screen overlays, etc.")
                 }
 
-                CheckBox {
+                Row {
-                    id: vsyncCheck
+                    spacing: 5
                     width: parent.width
-                    hoverEnabled: true
+
-                    text: qsTr("V-Sync")
+                    CheckBox {
-                    font.pointSize:  12
+                        id: vsyncCheck
-                    checked: StreamingPreferences.enableVsync
+                        hoverEnabled: true
-                    onCheckedChanged: {
+                        text: qsTr("V-Sync")
-                        StreamingPreferences.enableVsync = checked
+                        font.pointSize:  12
+                        checked: StreamingPreferences.enableVsync
+                        onCheckedChanged: {
+                            StreamingPreferences.enableVsync = checked
+                        }
+
+                        ToolTip.delay: 1000
+                        ToolTip.timeout: 5000
+                        ToolTip.visible: hovered
+                        ToolTip.text: qsTr("Disabling V-Sync allows sub-frame rendering latency, but it can display visible tearing")
                     }
 
-                    ToolTip.delay: 1000
+                    CheckBox {
-                    ToolTip.timeout: 5000
+                        id: framePacingCheck
-                    ToolTip.visible: hovered
+                        hoverEnabled: true
-                    ToolTip.text: qsTr("Disabling V-Sync allows sub-frame rendering latency, but it can display visible tearing")
+                        text: qsTr("Frame pacing")
+                        font.pointSize:  12
+                        enabled: StreamingPreferences.enableVsync
+                        checked: StreamingPreferences.enableVsync && StreamingPreferences.framePacing
+                        onCheckedChanged: {
+                            StreamingPreferences.framePacing = checked
+                        }
+                        ToolTip.delay: 1000
+                        ToolTip.timeout: 5000
+                        ToolTip.visible: hovered
+                        ToolTip.text: qsTr("Frame pacing reduces micro-stutter by delaying frames that come in too early")
+                    }
                 }
 
                 CheckBox {
-                    id: framePacingCheck
+                    id: enableHdr
                     width: parent.width
-                    hoverEnabled: true
+                    text: qsTr("Enable HDR")
-                    text: qsTr("Frame pacing")
+                    font.pointSize: 12
-                    font.pointSize:  12
+
-                    enabled: StreamingPreferences.enableVsync
+                    enabled: SystemProperties.supportsHdr
-                    checked: StreamingPreferences.enableVsync && StreamingPreferences.framePacing
+                    checked: enabled && StreamingPreferences.enableHdr
                     onCheckedChanged: {
-                        StreamingPreferences.framePacing = checked
+                        StreamingPreferences.enableHdr = checked
                     }
+
+                    // Updating StreamingPreferences.videoCodecConfig is handled above
+
                     ToolTip.delay: 1000
                     ToolTip.timeout: 5000
                     ToolTip.visible: hovered
-                    ToolTip.text: qsTr("Frame pacing reduces micro-stutter by delaying frames that come in too early")
+                    ToolTip.text: enabled ?
+                                      qsTr("The stream will be HDR-capable, but some games may require an HDR monitor on your host PC to enable HDR mode.")
+                                    :
+                                      qsTr("HDR streaming is not supported on this PC.")
                 }
             }
         }
@@ -1072,10 +1123,10 @@ Flickable {
                             text: "Português" // Portuguese
                             val: StreamingPreferences.LANG_PT
                         }
-                        /* ListElement {
+                        ListElement {
                             text: "Português do Brasil" // Brazilian Portuguese
                             val: StreamingPreferences.LANG_PT_BR
-                        } */
+                        }
                         ListElement {
                             text: "Ελληνικά" // Greek
                             val: StreamingPreferences.LANG_EL
@@ -1112,6 +1163,18 @@ Flickable {
                             text: "Eesti" // Estonian
                             val: StreamingPreferences.LANG_ET
                         } */
+                        ListElement {
+                            text: "Български" // Bulgarian
+                            val: StreamingPreferences.LANG_BG
+                        }
+                        /* ListElement {
+                            text: "Esperanto"
+                            val: StreamingPreferences.LANG_EO
+                        } */
+                        ListElement {
+                            text: "தமிழ்" // Tamil
+                            val: StreamingPreferences.LANG_TA
+                        }
                     }
                     // ::onActivated must be used, as it only listens for when the index is changed by a human
                     onActivated : {
@@ -1199,6 +1262,17 @@ Flickable {
                     }
                 }
 
+                CheckBox {
+                    id: configurationWarningsCheck
+                    width: parent.width
+                    text: qsTr("Show configuration warnings")
+                    font.pointSize: 12
+                    checked: StreamingPreferences.configurationWarnings
+                    onCheckedChanged: {
+                        StreamingPreferences.configurationWarnings = checked
+                    }
+                }
+
                 CheckBox {
                     visible: SystemProperties.hasDiscordIntegration
                     id: discordPresenceCheck
@@ -1570,7 +1644,7 @@ Flickable {
                             val: StreamingPreferences.VCC_FORCE_HEVC
                         }
                         ListElement {
-                            text: qsTr("AV1 (Experimental)")
+                            text: qsTr("AV1")
                             val: StreamingPreferences.VCC_FORCE_AV1
                         }
                     }
@@ -1582,33 +1656,66 @@ Flickable {
                     }
                 }
 
-                CheckBox {
+                Label {
-                    id: enableHdr
                     width: parent.width
-                    text: qsTr("Enable HDR (Experimental)")
+                    id: rendererTitle
+                    text: qsTr("Renderer")
                     font.pointSize: 12
+                    wrapMode: Text.Wrap
+                    visible: SystemProperties.isDarwin
+                }
 
-                    enabled: SystemProperties.supportsHdr
+                AutoResizingComboBox {
-                    checked: enabled && StreamingPreferences.enableHdr
+                    // ignore setting the index at first, and actually set it when the component is loaded
-                    onCheckedChanged: {
+                    Component.onCompleted: {
-                        StreamingPreferences.enableHdr = checked
+                        var saved_rs = StreamingPreferences.rendererSelection
+
+                        // Default to Automatic
+                        currentIndex = 0
+
+                        for(var i = 0; i < rendererListModel.count; i++) {
+                            var el_rs = rendererListModel.get(i).val;
+                            if (saved_rs === el_rs) {
+                                currentIndex = i
+                                break
+                            }
+                        }
+
+                        activated(currentIndex)
                     }
 
-                    // Updating StreamingPreferences.videoCodecConfig is handled above
+                    id: rendererComboBox
-
+                    visible: SystemProperties.isDarwin
-                    ToolTip.delay: 1000
+                    textRole: "text"
-                    ToolTip.timeout: 5000
+                    model: ListModel {
-                    ToolTip.visible: hovered
+                        id: rendererListModel
-                    ToolTip.text: enabled ?
+                        ListElement {
-                                      qsTr("The stream will be HDR-capable, but some games may require an HDR monitor on your host PC to enable HDR mode.")
+                            text: qsTr("Automatic (Recommended)")
-                                    :
+                            val: StreamingPreferences.RS_AUTO
-                                      qsTr("HDR streaming is not supported on this PC.")
+                        }
+                        ListElement {
+                            text: "Vulkan"
+                            val: StreamingPreferences.RS_VULKAN
+                        }
+                        ListElement {
+                            text: "Metal"
+                            val: StreamingPreferences.RS_METAL
+                        }
+                        ListElement {
+                            text: "AVSampleBufferDisplayLayer"
+                            val: StreamingPreferences.RS_AVSBDL
+                        }
+                    }
+                    // ::onActivated must be used, as it only listens for when the index is changed by a human
+                    onActivated : {
+                        StreamingPreferences.rendererSelection = rendererListModel.get(currentIndex).val
+                    }
                 }
 
                 CheckBox {
                     id: enableYUV444
                     width: parent.width
-                    text: qsTr("Enable YUV 4:4:4 (Experimental)")
+                    text: qsTr("Enable YUV 4:4:4")
                     font.pointSize: 12
 
                     checked: StreamingPreferences.enableYUV444
@@ -1616,11 +1723,13 @@ Flickable {
                         // This is called on init, so only reset to default bitrate when checked state changes.
                         if (StreamingPreferences.enableYUV444 != checked) {
                             StreamingPreferences.enableYUV444 = checked
-                            StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
+                            if (StreamingPreferences.autoAdjustBitrate) {
-                                                                                                      StreamingPreferences.height,
+                                StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
-                                                                                                      StreamingPreferences.fps,
+                                                                                                          StreamingPreferences.height,
-                                                                                                      StreamingPreferences.enableYUV444);
+                                                                                                          StreamingPreferences.fps,
-                            slider.value = StreamingPreferences.bitrateKbps
+                                                                                                          StreamingPreferences.enableYUV444);
+                                slider.value = StreamingPreferences.bitrateKbps
+                            }
                         }
                     }
 

app/gui/StreamSegue.qml

@@ -4,6 +4,7 @@ import QtQuick.Window 2.2
 
 import SdlGamepadKeyNavigation 1.0
 import Session 1.0
+import SystemProperties 1.0
 
 Item {
     property Session session
@@ -48,18 +49,6 @@ Item {
         console.error(text)
     }
 
-    function displayLaunchWarning(text)
-    {
-        // This toast appears for 3 seconds, just shorter than how long
-        // Session will wait for it to be displayed. This gives it time
-        // to transition to invisible before continuing.
-        var toast = Qt.createQmlObject('import QtQuick.Controls 2.2; ToolTip {}', parent, '')
-        toast.text = text
-        toast.timeout = 3000
-        toast.visible = true
-        console.warn(text)
-    }
-
     function quitStarting()
     {
         // Avoid the push transition animation
@@ -79,20 +68,16 @@ Item {
         // Re-enable GUI gamepad usage now
         SdlGamepadKeyNavigation.enable()
 
-        if (quitAfter) {
+        // Pop the StreamSegue off the stack if this is a GUI-based app launch
-            if (streamSegueErrorDialog.text) {
+        if (!quitAfter) {
-                // Quit when the error dialog is acknowledged
-                streamSegueErrorDialog.quitAfter = quitAfter
-                streamSegueErrorDialog.open()
-            }
-            else {
-                // Quit immediately
-                Qt.quit()
-            }
-        } else {
-            // Exit this view
             stackView.pop()
+        }
 
+        if (quitAfter && !streamSegueErrorDialog.text) {
+            // If this was a CLI launch without errors, exit now
+            Qt.quit()
+        }
+        else {
             // Show the Qt window again after streaming
             window.visible = true
 
@@ -132,26 +117,29 @@ Item {
         session.stageFailed.connect(stageFailed)
         session.connectionStarted.connect(connectionStarted)
         session.displayLaunchError.connect(displayLaunchError)
-        session.displayLaunchWarning.connect(displayLaunchWarning)
         session.quitStarting.connect(quitStarting)
         session.sessionFinished.connect(sessionFinished)
         session.readyForDeletion.connect(sessionReadyForDeletion)
 
+        // Ensure the SystemProperties async thread is finished,
+        // since it may currently be using the SDL video subsystem
+        SystemProperties.waitForAsyncLoad()
+
         // Kick off the stream
-        spinnerTimer.start()
         streamLoader.active = true
     }
 
     Timer {
-        id: spinnerTimer
+        id: startSessionTimer
+        onTriggered: {
+            // Garbage collect QML stuff before we start streaming,
+            // since we'll probably be streaming for a while and we
+            // won't be able to GC during the stream.
+            gc()
 
-        // Display the spinner appearance a bit to allow us to reach
+            // Run the streaming session to completion
-        // the code in Session.exec() that pumps the event loop.
+            session.start()
-        // If we display it immediately, it will briefly hang in the
+        }
-        // middle of the animation on Windows, which looks very
-        // obviously broken.
-        interval: 100
-        onTriggered: stageSpinner.running = true
     }
 
     Loader {
@@ -170,13 +158,43 @@ Item {
             // Stop GUI gamepad usage now
             SdlGamepadKeyNavigation.disable()
 
-            // Garbage collect QML stuff before we start streaming,
+            // Initialize the session and probe for host/client capabilities
-            // since we'll probably be streaming for a while and we
+            if (!session.initialize(window)) {
-            // won't be able to GC during the stream.
+                sessionFinished(0);
-            gc()
+                sessionReadyForDeletion();
+                return;
+            }
 
-            // Run the streaming session to completion
+            // This spinner is shown only after session.initialize() has completed
-            session.exec(Window.window)
+            // to prevent active animations from running during decoder probing,
+            // which causes re-entrant event loop livelocks with libdecor-gtk.
+            stageSpinner.visible = true
+
+            // Don't wait unless we have toasts to display
+            startSessionTimer.interval = 0
+
+            // Display the toasts together in a vertical centered arrangement
+            var yOffset = 0
+            for (var i = 0; i < session.launchWarnings.length; i++) {
+                var text = session.launchWarnings[i]
+                console.warn(text)
+
+                // Show the tooltip for 3 seconds
+                var toast = Qt.createQmlObject('import QtQuick.Controls 2.2; ToolTip {}', parent, '')
+                toast.timeout = 3000
+                toast.text = text
+                toast.y += yOffset
+                toast.visible = true
+
+                // Offset the next toast below the previous one
+                yOffset = toast.y + toast.padding + toast.height
+
+                // Allow an extra 500 ms for the tooltip's fade-out animation to finish
+                startSessionTimer.interval = toast.timeout + 500;
+            }
+
+            // Start the timer to wait for toasts (or start the session immediately)
+            startSessionTimer.start()
         }
 
         sourceComponent: Item {}
@@ -188,7 +206,8 @@ Item {
 
         BusyIndicator {
             id: stageSpinner
-            running: false
+            running: visible
+            visible: false
         }
 
         Label {

app/gui/appmodel.cpp

@@ -120,7 +120,7 @@ void AppModel::quitRunningApp()
 
 bool AppModel::isAppCurrentlyVisible(const NvApp& app)
 {
-    for (const NvApp& visibleApp : m_VisibleApps) {
+    for (const NvApp& visibleApp : std::as_const(m_VisibleApps)) {
         if (app.id == visibleApp.id) {
             return true;
         }
@@ -156,7 +156,7 @@ void AppModel::updateAppList(QVector<NvApp> newList)
         const NvApp& existingApp = m_VisibleApps.at(i);
 
         bool found = false;
-        for (const NvApp& newApp : newVisibleList) {
+        for (const NvApp& newApp : std::as_const(newVisibleList)) {
             if (existingApp.id == newApp.id) {
                 // If the data changed, update it in our list
                 if (existingApp != newApp) {
@@ -178,7 +178,7 @@ void AppModel::updateAppList(QVector<NvApp> newList)
     }
 
     // Process additions now
-    for (const NvApp& newApp : newVisibleList) {
+    for (const NvApp& newApp : std::as_const(newVisibleList)) {
         int insertionIndex = m_VisibleApps.size();
         bool found = false;
 

app/gui/main.qml

@@ -51,10 +51,20 @@ ApplicationWindow {
         }
 
         // Display any modal dialogs for configuration warnings
-        if (SystemProperties.isWow64) {
+        if (runConfigChecks) {
-            wow64Dialog.open()
+            if (SystemProperties.isWow64) {
+                wow64Dialog.open()
+            }
+
+            // Hardware acceleration and unmapped gamepads are checked asynchronously
+            SystemProperties.hasHardwareAccelerationChanged.connect(hasHardwareAccelerationChanged)
+            SystemProperties.unmappedGamepadsChanged.connect(hasUnmappedGamepadsChanged)
+            SystemProperties.startAsyncLoad()
         }
-        else if (!SystemProperties.hasHardwareAcceleration) {
+    }
+
+    function hasHardwareAccelerationChanged() {
+        if (!SystemProperties.hasHardwareAcceleration && StreamingPreferences.videoDecoderSelection !== StreamingPreferences.VDS_FORCE_SOFTWARE) {
             if (SystemProperties.isRunningXWayland) {
                 xWaylandDialog.open()
             }
@@ -62,16 +72,28 @@ ApplicationWindow {
                 noHwDecoderDialog.open()
             }
         }
+    }
 
+    function hasUnmappedGamepadsChanged() {
         if (SystemProperties.unmappedGamepads) {
             unmappedGamepadDialog.unmappedGamepads = SystemProperties.unmappedGamepads
             unmappedGamepadDialog.open()
         }
     }
-  
+
+    // It would be better to use TextMetrics here, but it always lays out
+    // the text slightly more compactly than real Text does in ToolTip,
+    // causing unexpected line breaks to be inserted
+    Text {
+        id: tooltipTextLayoutHelper
+        visible: false
+        font: ToolTip.toolTip.font
+        text: ToolTip.toolTip.text
+    }
+
     // This configures the maximum width of the singleton attached QML ToolTip. If left unconstrained,
     // it will never insert a line break and just extend on forever.
-    ToolTip.toolTip.contentWidth: ToolTip.toolTip.implicitContentWidth < 400 ? ToolTip.toolTip.implicitContentWidth : 400
+    ToolTip.toolTip.contentWidth: Math.min(tooltipTextLayoutHelper.width, 400)
 
     function goBack() {
         if (clearOnBack) {
@@ -195,20 +217,10 @@ ApplicationWindow {
         SdlGamepadKeyNavigation.notifyWindowFocus(visible && active)
     }
 
-    // Workaround for lack of instanceof in Qt 5.9.
-    //
-    // Based on https://stackoverflow.com/questions/13923794/how-to-do-a-is-a-typeof-or-instanceof-in-qml
-    function qmltypeof(obj, className) { // QtObject, string -> bool
-        // className plus "(" is the class instance without modification
-        // className plus "_QML" is the class instance with user-defined properties
-        var str = obj.toString();
-        return str.startsWith(className + "(") || str.startsWith(className + "_QML");
-    }
-
     function navigateTo(url, objectType)
     {
         var existingItem = stackView.find(function(item, index) {
-            return qmltypeof(item, objectType)
+            return item instanceof objectType
         })
 
         if (existingItem !== null) {
@@ -275,7 +287,7 @@ ApplicationWindow {
 
             Label {
                 id: versionLabel
-                visible: qmltypeof(stackView.currentItem, "SettingsView")
+                visible: stackView.currentItem instanceof SettingsView
                 text: qsTr("Version %1").arg(SystemProperties.versionString)
                 font.pointSize: 12
                 horizontalAlignment: Qt.AlignRight
@@ -285,7 +297,7 @@ ApplicationWindow {
             NavigableToolButton {
                 id: discordButton
                 visible: SystemProperties.hasBrowser &&
-                         qmltypeof(stackView.currentItem, "SettingsView")
+                         stackView.currentItem instanceof SettingsView
 
                 iconSource: "qrc:/res/discord.svg"
 
@@ -304,7 +316,7 @@ ApplicationWindow {
 
             NavigableToolButton {
                 id: addPcButton
-                visible: qmltypeof(stackView.currentItem, "PcView")
+                visible: stackView.currentItem instanceof PcView
 
                 iconSource:  "qrc:/res/ic_add_to_queue_white_48px.svg"
 
@@ -402,7 +414,7 @@ ApplicationWindow {
 
                 iconSource: "qrc:/res/ic_videogame_asset_white_48px.svg"
 
-                onClicked: navigateTo("qrc:/gui/GamepadMapper.qml", "GamepadMapper")
+                onClicked: navigateTo("qrc:/gui/GamepadMapper.qml", GamepadMapper)
 
                 Keys.onDownPressed: {
                     stackView.currentItem.forceActiveFocus(Qt.TabFocus)
@@ -414,7 +426,7 @@ ApplicationWindow {
 
                 iconSource:  "qrc:/res/settings.svg"
 
-                onClicked: navigateTo("qrc:/gui/SettingsView.qml", "SettingsView")
+                onClicked: navigateTo("qrc:/gui/SettingsView.qml", SettingsView)
 
                 Keys.onDownPressed: {
                     stackView.currentItem.forceActiveFocus(Qt.TabFocus)

app/gui/sdlgamepadkeynavigation.cpp

@@ -51,7 +51,11 @@ void SdlGamepadKeyNavigation::enable()
     // on first init of the GC subsystem. We can't depend on them due to
     // overlapping lifetimes of SdlGamepadKeyNavigation instances, so we
     // will attach ourselves.
-    SDL_PumpEvents();
+    //
+    // NB: We use SDL_JoystickUpdate() instead of SDL_PumpEvents() because
+    // the latter can do a bit more work that we want (like handling video
+    // events that we intentionally do not want to process yet).
+    SDL_JoystickUpdate();
     SDL_FlushEvent(SDL_CONTROLLERDEVICEADDED);
 
     // Open all currently attached game controllers
@@ -99,17 +103,19 @@ void SdlGamepadKeyNavigation::onPollingTimerFired()
 {
     SDL_Event event;
 
+    // Update joystick state without pumping other events (see enable() comment)
+    SDL_JoystickUpdate();
+
     // Discard any pending button events on the first poll to avoid picking up
     // stale input data from the stream session (like the quit combo).
     if (m_FirstPoll) {
-        SDL_PumpEvents();
         SDL_FlushEvent(SDL_CONTROLLERBUTTONDOWN);
         SDL_FlushEvent(SDL_CONTROLLERBUTTONUP);
-
         m_FirstPoll = false;
     }
 
-    while (SDL_PollEvent(&event)) {
+    // Peep events rather than polling to avoid calling SDL_PumpEvents()
+    while (SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT) == 1) {
         switch (event.type) {
         case SDL_QUIT:
             // SDL may send us a quit event since we initialize
@@ -212,7 +218,7 @@ void SdlGamepadKeyNavigation::onPollingTimerFired()
     }
 
     // Handle analog sticks by polling
-    for (auto gc : m_Gamepads) {
+    for (auto gc : std::as_const(m_Gamepads)) {
         short leftX = SDL_GameControllerGetAxis(gc, SDL_CONTROLLER_AXIS_LEFTX);
         short leftY = SDL_GameControllerGetAxis(gc, SDL_CONTROLLER_AXIS_LEFTY);
         if (SDL_GetTicks() - m_LastAxisNavigationEventTime < AXIS_NAVIGATION_REPEAT_DELAY) {