Move audio capabilities out of the renderer classes

Since the removal of libsoundio, all renderers support arbitrary audio duration, so we can avoid having to start an audio session just to query capabilities.

.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"

.gitmodules

@@ -7,9 +7,6 @@
 [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

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

@@ -13,6 +13,7 @@ You can follow development on our [Discord server](https://moonlight-stream.org/
 ## Features
  - Hardware accelerated video decoding on Windows, Mac, and Linux
  - H.264, HEVC, and AV1 codec support (AV1 requires Sunshine and a supported host GPU)
+ - YUV 4:4:4 support (Sunshine only)
  - HDR streaming support
  - 7.1 surround sound audio support
  - 10-point multitouch support (Sunshine only)
@@ -39,33 +40,49 @@ Hosting for Moonlight's Debian and L4T package repositories is graciously provid
 ## Building
 
 ### Windows Build Requirements
-* Qt 5.15 SDK or later. Qt 6 is also supported for x64 and ARM64 builds.
+* Qt 6.7 SDK or later (earlier versions may work but are not officially supported)
 * [Visual Studio 2022](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)
+  * Install "Graphics Tools" in the Optional Features page of the Windows Settings app.
+  * Alternatively, run `dism /online /add-capability /capabilityname:Tools.Graphics.DirectX~~~~0.0.1.0` and reboot.
 
 ### macOS Build Requirements
-* Qt 6.4 SDK or later
-* Xcode 13 or later
+* Qt 6.7 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)
 * [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: `libegl1-mesa-dev libgl1-mesa-dev libopus-dev libsdl2-dev libsdl2-ttf-dev libssl-dev libavcodec-dev libavformat-dev libva-dev libvdpau-dev libxkbcommon-dev  wayland-protocols libdrm-dev qtbase6-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`
-  * RedHat/Fedora (RPM Fusion repo required): `openssl-devel SDL2-devel SDL2_ttf-devel ffmpeg-devel libva-devel libvdpau-devel opus-devel pulseaudio-libs-devel alsa-lib-devel libdrm-devel qt6-qtsvg-devel qt6-qtdeclarative-devel`
-* Building the Vulkan HDR renderer requires a `libplacebo-dev`/`libplacebo-devel` version of at least v338.0 and FFmpeg 6.1 or later.
+  * 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 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`
+    * Qt 6 (Recommended): `qt6-qtsvg-devel qt6-qtdeclarative-devel`
+    * Qt 5: `qt5-qtsvg-devel qt5-qtquickcontrols2-devel`
+* Building the Vulkan renderer requires a `libplacebo-dev`/`libplacebo-devel` version of at least v7.349.0 and FFmpeg 6.1 or later.
 
 ### Steam Link Build Requirements
 * [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
+
 ### 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/`
 3. Open the project in Qt Creator or build from qmake on the command line.

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>10.14</string>
+	<string>11.0.0</string>
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
 	<key>NSSupportsAutomaticGraphicsSwitching</key>
@@ -36,11 +40,15 @@
 		<key>NSAllowsArbitraryLoads</key>
 		<true/>
 	</dict>
+	<key>NSLocalNetworkUsageDescription</key>
+	<string>Moonlight uses the local network to connect to your gaming PC for streaming.</string>
 	<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/SDL_GameControllerDB

@@ -1 +1 @@
-Subproject commit e5a5fa2ac6e645d72c619ea99520a3a4586ee005
+Subproject commit 38fc811c715365e963a6942092cae147eddddc90

app/SDL_compat.h

@@ -0,0 +1,67 @@
+//
+// Compatibility header for older version of SDL.
+// Include this instead of SDL.h directly.
+//
+
+#pragma once
+
+#include <SDL.h>
+
+// SDL_FRect wasn't added until 2.0.10
+#if !SDL_VERSION_ATLEAST(2, 0, 10)
+typedef struct SDL_FRect
+{
+    float x;
+    float y;
+    float w;
+    float h;
+} SDL_FRect;
+#endif
+
+#ifndef SDL_HINT_VIDEO_X11_FORCE_EGL
+#define SDL_HINT_VIDEO_X11_FORCE_EGL "SDL_VIDEO_X11_FORCE_EGL"
+#endif
+
+#ifndef SDL_HINT_KMSDRM_REQUIRE_DRM_MASTER
+#define SDL_HINT_KMSDRM_REQUIRE_DRM_MASTER "SDL_KMSDRM_REQUIRE_DRM_MASTER"
+#endif
+
+#ifndef SDL_HINT_ALLOW_ALT_TAB_WHILE_GRABBED
+#define SDL_HINT_ALLOW_ALT_TAB_WHILE_GRABBED "SDL_ALLOW_ALT_TAB_WHILE_GRABBED"
+#endif
+
+#ifndef SDL_HINT_JOYSTICK_HIDAPI_PS4_RUMBLE
+#define SDL_HINT_JOYSTICK_HIDAPI_PS4_RUMBLE "SDL_JOYSTICK_HIDAPI_PS4_RUMBLE"
+#endif
+
+#ifndef SDL_HINT_JOYSTICK_HIDAPI_PS5_RUMBLE
+#define SDL_HINT_JOYSTICK_HIDAPI_PS5_RUMBLE "SDL_JOYSTICK_HIDAPI_PS5_RUMBLE"
+#endif
+
+#ifndef SDL_HINT_WINDOWS_USE_D3D9EX
+#define SDL_HINT_WINDOWS_USE_D3D9EX "SDL_WINDOWS_USE_D3D9EX"
+#endif
+
+#ifndef SDL_HINT_GAMECONTROLLER_USE_BUTTON_LABELS
+#define SDL_HINT_GAMECONTROLLER_USE_BUTTON_LABELS "SDL_GAMECONTROLLER_USE_BUTTON_LABELS"
+#endif
+
+#ifndef SDL_HINT_MOUSE_RELATIVE_SCALING
+#define SDL_HINT_MOUSE_RELATIVE_SCALING "SDL_MOUSE_RELATIVE_SCALING"
+#endif
+
+#ifndef SDL_HINT_AUDIO_DEVICE_APP_NAME
+#define SDL_HINT_AUDIO_DEVICE_APP_NAME "SDL_AUDIO_DEVICE_APP_NAME"
+#endif
+
+#ifndef SDL_HINT_APP_NAME
+#define SDL_HINT_APP_NAME "SDL_APP_NAME"
+#endif
+
+#ifndef SDL_HINT_MOUSE_AUTO_CAPTURE
+#define SDL_HINT_MOUSE_AUTO_CAPTURE "SDL_MOUSE_AUTO_CAPTURE"
+#endif
+
+#ifndef SDL_HINT_VIDEO_WAYLAND_EMULATE_MOUSE_WARP
+#define SDL_HINT_VIDEO_WAYLAND_EMULATE_MOUSE_WARP "SDL_VIDEO_WAYLAND_EMULATE_MOUSE_WARP"
+#endif

app/app.pro

@@ -12,10 +12,13 @@ include(../globaldefs.pri)
 
 # Precompile QML files to avoid writing qmlcache on portable versions.
 # Since this binds the app against the Qt runtime version, we will only
-# do this for Windows and Mac, since they ship with the Qt runtime.
-win32|macx {
-    CONFIG(release, debug|release) {
-        CONFIG += qtquickcompiler
+# do this for Windows and Mac (when disable-prebuilts is not defined),
+# since they always ship with the matching build of the Qt runtime.
+!disable-prebuilts {
+    win32|macx {
+        CONFIG(release, debug|release) {
+            CONFIG += qtquickcompiler
+        }
     }
 }
 
@@ -66,11 +69,16 @@ macx:!disable-prebuilts {
 
 unix:if(!macx|disable-prebuilts) {
     CONFIG += link_pkgconfig
-    PKGCONFIG += openssl sdl2 SDL2_ttf opus
+    PKGCONFIG += openssl sdl2 SDL2_ttf
+
+    # We have our own optimized libopus.a for Steam Link
+    if(!config_SL|disable-prebuilts) {
+        PKGCONFIG += opus
+    }
 
     !disable-ffmpeg {
         packagesExist(libavcodec) {
-            PKGCONFIG += libavcodec libavutil
+            PKGCONFIG += libavcodec libavutil libswscale
             CONFIG += ffmpeg
 
             !disable-libva {
@@ -114,7 +122,9 @@ 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
@@ -145,24 +155,20 @@ unix:if(!macx|disable-prebuilts) {
     }
 }
 win32 {
-    LIBS += -llibssl -llibcrypto -lSDL2 -lSDL2_ttf -lavcodec -lavutil -lopus -ldxgi -ld3d11
-    CONFIG += ffmpeg
+    LIBS += -llibssl -llibcrypto -lSDL2 -lSDL2_ttf -lavcodec -lavutil -lswscale -lopus -ldxgi -ld3d11 -llibplacebo
+    CONFIG += ffmpeg libplacebo
 }
 win32:!winrt {
-    CONFIG += soundio discord-rpc
+    CONFIG += discord-rpc
 }
 macx {
     !disable-prebuilts {
-        LIBS += -lssl -lcrypto -lavcodec.61 -lavutil.59 -lopus -framework SDL2 -framework SDL2_ttf
+        LIBS += -lssl.3 -lcrypto.3 -lavcodec.62 -lavutil.60 -lswscale.9 -lopus -framework SDL2 -framework SDL2_ttf
         CONFIG += discord-rpc
     }
 
     LIBS += -lobjc -framework VideoToolbox -framework AVFoundation -framework CoreVideo -framework CoreGraphics -framework CoreMedia -framework AppKit -framework Metal -framework QuartzCore
-
-    # For libsoundio
-    LIBS += -framework CoreAudio -framework AudioUnit
-
-    CONFIG += ffmpeg soundio
+    CONFIG += ffmpeg
 }
 
 SOURCES += \
@@ -206,6 +212,7 @@ SOURCES += \
     wm.cpp
 
 HEADERS += \
+    SDL_compat.h \
     backend/nvaddress.h \
     backend/nvapp.h \
     cli/pair.h \
@@ -247,6 +254,7 @@ ffmpeg {
     DEFINES += HAVE_FFMPEG
     SOURCES += \
         streaming/video/ffmpeg.cpp \
+        streaming/video/ffmpeg-renderers/genhwaccel.cpp \
         streaming/video/ffmpeg-renderers/sdlvid.cpp \
         streaming/video/ffmpeg-renderers/swframemapper.cpp \
         streaming/video/ffmpeg-renderers/pacer/pacer.cpp
@@ -254,6 +262,7 @@ ffmpeg {
     HEADERS += \
         streaming/video/ffmpeg.h \
         streaming/video/ffmpeg-renderers/renderer.h \
+        streaming/video/ffmpeg-renderers/genhwaccel.h \
         streaming/video/ffmpeg-renderers/sdlvid.h \
         streaming/video/ffmpeg-renderers/swframemapper.h \
         streaming/video/ffmpeg-renderers/pacer/pacer.h
@@ -318,9 +327,11 @@ libdrm {
     HEADERS += streaming/video/ffmpeg-renderers/drm.h
 
     linux {
-        message(Master hooks enabled)
-        SOURCES += masterhook.c masterhook_internal.c
-        LIBS += -ldl
+        !disable-masterhooks {
+            message(Master hooks enabled)
+            SOURCES += masterhook.c masterhook_internal.c
+            LIBS += -ldl -pthread
+        }
     }
 }
 cuda {
@@ -359,6 +370,13 @@ config_EGL {
 config_SL {
     message(Steam Link build configuration selected)
 
+    !disable-prebuilts {
+        # Link against our NEON-optimized libopus build
+        LIBS += -L$$PWD/../libs/steamlink/lib
+        INCLUDEPATH += $$PWD/../libs/steamlink/include
+        LIBS += -lopus -larmasm -lNE10
+    }
+
     DEFINES += EMBEDDED_BUILD STEAM_LINK HAVE_SLVIDEO HAVE_SLAUDIO
     LIBS += -lSLVideo -lSLAudio
 
@@ -389,19 +407,13 @@ macx {
     message(VideoToolbox renderer selected)
 
     SOURCES += \
+        streaming/video/ffmpeg-renderers/vt_base.mm \
         streaming/video/ffmpeg-renderers/vt_avsamplelayer.mm \
         streaming/video/ffmpeg-renderers/vt_metal.mm
 
     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)
 
@@ -466,7 +478,11 @@ TRANSLATIONS += \
     languages/qml_cs.ts \
     languages/qml_he.ts \
     languages/qml_ckb.ts \
-    languages/qml_lt.ts
+    languages/qml_lt.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 =
@@ -488,15 +504,6 @@ 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

app/backend/computermanager.cpp

@@ -9,8 +9,7 @@
 #include <QThread>
 #include <QThreadPool>
 #include <QCoreApplication>
-
-#include <random>
+#include <QRandomGenerator>
 
 #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, 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;
                 }
             }
@@ -715,6 +729,10 @@ 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);
     }
@@ -966,14 +984,9 @@ void ComputerManager::addNewHost(NvAddress address, bool mdns, NvAddress mdnsIpv
     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);
-    std::random_device rd;
-    std::mt19937 engine(rd());
-
-    return QString::asprintf("%04u", dist(engine));
+    return QString::asprintf("%04u", QRandomGenerator::system()->bounded(10000));
 }
 
 #include "computermanager.moc"

app/backend/identitymanager.cpp

@@ -95,6 +95,14 @@ void IdentityManager::createCredentials(QSettings& settings)
     BIO_free(biokey);
     BIO_free(biocert);
 
+    // Check that the new keypair is valid before persisting it
+    if (getSslCertificate().isNull()) {
+        qFatal("Newly generated certificate is unreadable");
+    }
+    if (getSslKey().isNull()) {
+        qFatal("Newly generated private key is unreadable");
+    }
+
     settings.setValue(SER_CERT, m_CachedPemCert);
     settings.setValue(SER_KEY, m_CachedPrivateKey);
 
@@ -123,10 +131,10 @@ IdentityManager::IdentityManager()
 
     // We should have valid credentials now. If not, we're screwed
     if (getSslCertificate().isNull()) {
-        qFatal("Newly generated certificate is unreadable");
+        qFatal("Certificate is unreadable");
     }
     if (getSslKey().isNull()) {
-        qFatal("Newly generated private key is unreadable");
+        qFatal("Private key is unreadable");
     }
 }
 

app/backend/nvhttp.cpp

@@ -18,7 +18,8 @@
 #define RESUME_TIMEOUT_MS 30000
 #define QUIT_TIMEOUT_MS 30000
 
-NvHTTP::NvHTTP(NvAddress address, uint16_t httpsPort, QSslCertificate serverCert) :
+NvHTTP::NvHTTP(NvAddress address, uint16_t httpsPort, QSslCertificate serverCert, QNetworkAccessManager* nam) :
+    m_Nam(nam ? nam : new QNetworkAccessManager(this)),
     m_ServerCert(serverCert)
 {
     m_BaseUrlHttp.setScheme("http");
@@ -29,13 +30,11 @@ NvHTTP::NvHTTP(NvAddress address, uint16_t httpsPort, QSslCertificate serverCert
 
     // Never use a proxy server
     QNetworkProxy noProxy(QNetworkProxy::NoProxy);
-    m_Nam.setProxy(noProxy);
-
-    connect(&m_Nam, &QNetworkAccessManager::sslErrors, this, &NvHTTP::handleSslErrors);
+    m_Nam->setProxy(noProxy);
 }
 
-NvHTTP::NvHTTP(NvComputer* computer) :
-    NvHTTP(computer->activeAddress, computer->activeHttpsPort, computer->serverCert)
+NvHTTP::NvHTTP(NvComputer* computer, QNetworkAccessManager* nam) :
+    NvHTTP(computer->activeAddress, computer->activeHttpsPort, computer->serverCert, nam)
 {
 
 }
@@ -304,8 +303,7 @@ NvHTTP::getAppList()
                 // 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);
-                    return QVector<NvApp>();
+                    throw std::runtime_error("Invalid applist XML");
                 }
                 apps.append(NvApp());
             }
@@ -493,15 +491,15 @@ 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)
-    // HACK: Set network accessibility to work around QTBUG-80947 (introduced in Qt 5.14.0 and fixed in Qt 5.15.1)
-    QT_WARNING_PUSH
-    QT_WARNING_DISABLE_DEPRECATED
-    m_Nam.setNetworkAccessible(QNetworkAccessManager::Accessible);
-    QT_WARNING_POP
+#if QT_VERSION >= QT_VERSION_CHECK(6, 3, 0)
+    // Use fine-grained idle timeouts to avoid calling QNetworkAccessManager::clearAccessCache(),
+    // which tears down the NAM's global thread each time. We must not keep persistent connections
+    // or GFE will puke.
+    request.setAttribute(QNetworkRequest::ConnectionCacheExpiryTimeoutSecondsAttribute, 0);
 #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 +522,11 @@ NvHTTP::openConnection(QUrl baseUrl,
         reply->abort();
     }
 
-    // We must clear out cached authentication and connections or
-    // GFE will puke next time
-    m_Nam.clearAccessCache();
+#if QT_VERSION < QT_VERSION_CHECK(6, 3, 0)
+    // If we couldn't use fine-grained connection idle timeouts, kill them all now
+    m_Nam->clearAccessCache();
+#endif
+    disconnect(sslErrorsConnection);
 
     // Handle error
     if (reply->error() != QNetworkReply::NoError)

app/backend/nvhttp.h

@@ -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, QNetworkAccessManager* nam = nullptr);
 
-    explicit NvHTTP(NvComputer* computer);
+    explicit NvHTTP(NvComputer* computer, QNetworkAccessManager* nam = nullptr);
 
     static
     int
@@ -196,6 +196,6 @@ private:
                    NvLogLevel logLevel);
 
     NvAddress m_Address;
-    QNetworkAccessManager m_Nam;
+    QNetworkAccessManager* m_Nam;
     QSslCertificate m_ServerCert;
 };

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)));
@@ -374,6 +367,7 @@ void StreamCommandLineParser::parse(const QStringList &args, StreamingPreference
     parser.addToggleOption("keep-awake", "prevent display sleep while streaming");
     parser.addToggleOption("performance-overlay", "show performance overlay");
     parser.addToggleOption("hdr", "HDR streaming");
+    parser.addToggleOption("yuv444", "YUV 4:4:4 sampling, if supported");
     parser.addChoiceOption("capture-system-keys", "capture system key combos", m_CaptureSysKeysModeMap.keys());
     parser.addChoiceOption("video-codec", "video codec", m_VideoCodecMap.keys());
     parser.addChoiceOption("video-decoder", "video decoder", m_VideoDecoderMap.keys());
@@ -385,7 +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) {
@@ -413,19 +407,19 @@ void StreamCommandLineParser::parse(const QStringList &args, StreamingPreference
     if (parser.isSet("fps")) {
         preferences->fps = parser.getIntOption("fps");
         if (!inRange(preferences->fps, 10, 480)) {
-            parser.showError("FPS must be in range: 10 - 480");
+            fprintf(stderr, "Warning: FPS is out of the supported range (10 - 480 FPS). Performance may suffer!\n");
         }
     }
 
     // Resolve --bitrate option
     if (parser.isSet("bitrate")) {
         preferences->bitrateKbps = parser.getIntOption("bitrate");
-        if (!inRange(preferences->bitrateKbps, 500, 150000)) {
-            parser.showError("Bitrate must be in range: 500 - 150000");
+        if (!inRange(preferences->bitrateKbps, 500, 500000)) {
+            fprintf(stderr, "Warning: Bitrate is out of the supported range (500 - 500000 Kbps). Performance may suffer!\n");
         }
     } else if (displaySet || parser.isSet("fps")) {
         preferences->bitrateKbps = preferences->getDefaultBitrate(
-            preferences->width, preferences->height, preferences->fps);
+            preferences->width, preferences->height, preferences->fps, preferences->enableYUV444);
     }
 
     // Resolve --packet-size option
@@ -493,6 +487,9 @@ void StreamCommandLineParser::parse(const QStringList &args, StreamingPreference
 
     // Resolve --hdr and --no-hdr options
     preferences->enableHdr = parser.getToggleOptionValue("hdr", preferences->enableHdr);
+
+    // Resolve --yuv444 and --no-yuv444 options
+    preferences->enableYUV444 = parser.getToggleOptionValue("yuv444", preferences->enableYUV444);
     
     // Resolve --capture-system-keys option
     if (parser.isSet("capture-system-keys")) {

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,
-    StateSeekApp,
+    StateListApps,
     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/deploy/linux/com.moonlight_stream.Moonlight.appdata.xml

@@ -34,6 +34,22 @@
 	</screenshots>
 
 	<releases>
+		<release version="6.1.0" date="2024-09-16">
+			<description>
+				<p>New features:</p>
+				<ul>
+					<li>Experimental YUV 4:4:4 support for improved text clarity during remote desktop usage</li>
+					<li>HDR is now supported with software decoding (requires GPU with Vulkan support)</li>
+					<li>Bitrate limit can now be increased to 500 Mbps</li>
+					<li>Audio decoding now uses 32-bit floating point format</li>
+				</ul>
+				<p>Bugfixes:</p>
+				<ul>
+					<li>Fixed incorrect color range when streaming with AV1 from a host with an AMD GPU</li>
+					<li>Updated community-contributed translations from Weblate</li>
+				</ul>
+			</description>
+		</release>
 		<release version="6.0.1" date="2024-06-30">
 			<description>
 				<p>New features:</p>

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/steamlink/moonlight.sh

@@ -14,4 +14,4 @@ renice -10 -p $(pidof PE_Single_CPU)
 
 # Renice Moonlight itself to avoid preemption by background tasks
 # Write output to a logfile in /tmp
-exec nice -n -10 ./bin/moonlight > /tmp/moonlight.log
+exec nice -n -10 ./bin/moonlight > /tmp/moonlight.log 2>&1

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 == 628 && sourceSize.height == 888) || // GFE 3.0 placeholder image
-                     (sourceSize.width == 200 && sourceSize.height == 266)))  // Our no_app_image.png
+                    ((sourceSize.width === 130 && sourceSize.height === 180) || // GFE 2.0 placeholder image
+                     (sourceSize.width === 628 && sourceSize.height === 888) || // GFE 3.0 placeholder image
+                     (sourceSize.width === 200 && sourceSize.height === 266)))  // Our no_app_image.png
                 {
                     isPlaceholder = true
                 }
@@ -129,14 +129,9 @@ CenteredGridView {
                     implicitWidth: 85
                     implicitHeight: 85
 
-                    Image {
-                        source: "qrc:/res/play_arrow_FILL1_wght700_GRAD200_opsz48.svg"
-                        anchors.centerIn: parent
-                        sourceSize {
-                            width: 75
-                            height: 75
-                        }
-                    }
+                    icon.source: "qrc:/res/play_arrow_FILL1_wght700_GRAD200_opsz48.svg"
+                    icon.width: 75
+                    icon.height: 75
 
                     onClicked: {
                         launchOrResumeSelectedApp(true)
@@ -157,14 +152,9 @@ CenteredGridView {
                     implicitWidth: 85
                     implicitHeight: 85
 
-                    Image {
-                        source: "qrc:/res/stop_FILL1_wght700_GRAD200_opsz48.svg"
-                        anchors.centerIn: parent
-                        sourceSize {
-                            width: 75
-                            height: 75
-                        }
-                    }
+                    icon.source: "qrc:/res/stop_FILL1_wght700_GRAD200_opsz48.svg"
+                    icon.width: 75
+                    icon.height: 75
 
                     onClicked: {
                         doQuitGame()
@@ -299,18 +289,15 @@ CenteredGridView {
             sourceComponent: NavigableMenu {
                 id: appContextMenu
                 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 +310,6 @@ CenteredGridView {
                     ToolTip.visible: hovered
                 }
                 NavigableMenuItem {
-                    parentMenu: appContextMenu
                     checkable: true
                     checked: model.hidden
                     text: qsTr("Hide Game")
@@ -339,6 +325,19 @@ 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 : ""
@@ -350,7 +349,7 @@ CenteredGridView {
 
         function quitApp() {
             var component = Qt.createComponent("QuitSegue.qml")
-            var params = {"appName": appName, "quitRunningAppFn": () => appModel.quitRunningApp()}
+            var params = {"appName": appName, "quitRunningAppFn": function() { appModel.quitRunningApp() }}
             if (segueToStream) {
                 // Store the session and app name if we're going to stream after
                 // successfully quitting the old app.

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

@@ -2,7 +2,6 @@ import QtQuick 2.0
 import QtQuick.Controls 2.2
 
 import ComputerManager 1.0
-import SdlGamepadKeyNavigation 1.0
 
 Item {
     function onSearchingComputer() {
@@ -39,10 +38,6 @@ Item {
         if (!launcher.isExecuted()) {
             toolBar.visible = false
 
-            // Normally this is enabled by PcView, but we will won't
-            // load PcView when streaming from the command-line.
-            SdlGamepadKeyNavigation.enable()
-
             launcher.searchingComputer.connect(onSearchingComputer)
             launcher.pairing.connect(onPairing)
             launcher.failed.connect(onFailed)
@@ -58,6 +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

@@ -2,7 +2,6 @@ import QtQuick 2.0
 import QtQuick.Controls 2.2
 
 import ComputerManager 1.0
-import SdlGamepadKeyNavigation 1.0
 
 Item {
     function onSearchingComputer() {
@@ -38,10 +37,6 @@ Item {
         if (!launcher.isExecuted()) {
             toolBar.visible = false
 
-            // Normally this is enabled by PcView, but we will won't
-            // load PcView when streaming from the command-line.
-            SdlGamepadKeyNavigation.enable()
-
             launcher.searchingComputer.connect(onSearchingComputer)
             launcher.searchingApp.connect(onSearchingApp)
             launcher.sessionCreated.connect(onSessionCreated)
@@ -57,6 +52,7 @@ Item {
 
         BusyIndicator {
             id: stageSpinner
+            running: visible
         }
 
         Label {
@@ -85,7 +81,7 @@ Item {
 
         function quitApp() {
             var component = Qt.createComponent("QuitSegue.qml")
-            var params = {"appName": appName, "quitRunningAppFn": () => launcher.quitRunningApp()}
+            var params = {"appName": appName, "quitRunningAppFn": function() { launcher.quitRunningApp() }}
             stackView.push(component.createObject(stackView, params))
         }
 

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

@@ -24,6 +24,7 @@ NavigableDialog {
         BusyIndicator {
             id: dialogSpinner
             visible: false
+            running: visible
         }
 
         Image {

app/gui/NavigableToolButton.qml

@@ -7,17 +7,9 @@ ToolButton {
 
     activeFocusOnTab: true
 
-    // FIXME: We're using an Image here rather than icon.source because
-    // icons don't work on Qt 5.9 LTS.
-    Image {
-        id: image
-        source: iconSource
-        anchors.centerIn: parent.background
-        sourceSize {
-            width: parent.background.width * 1.10
-            height: parent.background.height * 1.10
-        }
-    }
+    icon.source: iconSource
+    icon.width: background.width
+    icon.height: background.height
 
     // 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

@@ -34,13 +34,8 @@ CenteredGridView {
         // Setup signals on CM
         ComputerManager.computerAddCompleted.connect(addComplete)
 
-        // This is a bit of a hack to do this here as opposed to main.qml, but
-        // we need it enabled before calling getConnectedGamepads() and PcView
-        // is never destroyed, so it should be okay.
-        SdlGamepadKeyNavigation.enable()
-
         // Highlight the first item if a gamepad is connected
-        if (currentIndex == -1 && SdlGamepadKeyNavigation.getConnectedGamepads() > 0) {
+        if (currentIndex === -1 && SdlGamepadKeyNavigation.getConnectedGamepads() > 0) {
             currentIndex = 0
         }
     }
@@ -95,6 +90,7 @@ CenteredGridView {
         BusyIndicator {
             id: searchSpinner
             visible: StreamingPreferences.enableMdns
+            running: visible
         }
 
         Label {
@@ -148,6 +144,7 @@ CenteredGridView {
             width: 75
             height: 75
             visible: model.statusUnknown
+            running: visible
         }
 
         Label {
@@ -174,7 +171,6 @@ CenteredGridView {
                     enabled: false
                 }
                 NavigableMenuItem {
-                    parentMenu: pcContextMenu
                     text: qsTr("View All Apps")
                     onTriggered: {
                         var component = Qt.createComponent("AppView.qml")
@@ -184,13 +180,11 @@ 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)
@@ -199,7 +193,6 @@ CenteredGridView {
                 }
 
                 NavigableMenuItem {
-                    parentMenu: pcContextMenu
                     text: qsTr("Rename PC")
                     onTriggered: {
                         renamePcDialog.pcIndex = index
@@ -208,7 +201,6 @@ CenteredGridView {
                     }
                 }
                 NavigableMenuItem {
-                    parentMenu: pcContextMenu
                     text: qsTr("Delete PC")
                     onTriggered: {
                         deletePcDialog.pcIndex = index
@@ -217,7 +209,6 @@ CenteredGridView {
                     }
                 }
                 NavigableMenuItem {
-                    parentMenu: pcContextMenu
                     text: qsTr("View Details")
                     onTriggered: {
                         showPcDetailsDialog.pcDetails = model.details

app/gui/QuitSegue.qml

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

app/gui/SettingsView.qml

@@ -281,10 +281,13 @@ Flickable {
                                 StreamingPreferences.width = selectedWidth
                                 StreamingPreferences.height = selectedHeight
 
-                                StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
-                                                                                                          StreamingPreferences.height,
-                                                                                                          StreamingPreferences.fps);
-                                slider.value = StreamingPreferences.bitrateKbps
+                                if (StreamingPreferences.autoAdjustBitrate) {
+                                    StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
+                                                                                                              StreamingPreferences.height,
+                                                                                                              StreamingPreferences.fps,
+                                                                                                              StreamingPreferences.enableYUV444);
+                                    slider.value = StreamingPreferences.bitrateKbps
+                                }
                             }
 
                             lastIndexValue = currentIndex
@@ -446,10 +449,13 @@ Flickable {
                             if (StreamingPreferences.fps !== selectedFps) {
                                 StreamingPreferences.fps = selectedFps
 
-                                StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
-                                                                                                          StreamingPreferences.height,
-                                                                                                          StreamingPreferences.fps);
-                                slider.value = StreamingPreferences.bitrateKbps
+                                if (StreamingPreferences.autoAdjustBitrate) {
+                                    StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
+                                                                                                              StreamingPreferences.height,
+                                                                                                              StreamingPreferences.fps,
+                                                                                                              StreamingPreferences.enableYUV444);
+                                    slider.value = StreamingPreferences.bitrateKbps
+                                }
                             }
 
                             lastIndexValue = currentIndex
@@ -676,26 +682,47 @@ Flickable {
                     wrapMode: Text.Wrap
                 }
 
-                Slider {
-                    id: slider
+                Row {
+                    width: parent.width
+                    spacing: 5
 
-                    value: StreamingPreferences.bitrateKbps
+                    Slider {
+                        id: slider
 
-                    stepSize: 500
-                    from : 500
-                    to: 150000
+                        value: StreamingPreferences.bitrateKbps
 
-                    snapMode: "SnapOnRelease"
-                    width: Math.min(bitrateDesc.implicitWidth, parent.width)
+                        stepSize: 500
+                        from : 500
+                        to: StreamingPreferences.unlockBitrate ? 500000 : 150000
 
-                    onValueChanged: {
-                        bitrateTitle.text = qsTr("Video bitrate: %1 Mbps").arg(value / 1000.0)
-                        StreamingPreferences.bitrateKbps = value
+                        snapMode: "SnapOnRelease"
+                        width: Math.min(bitrateDesc.implicitWidth, parent.width - (resetBitrateButton.visible ? resetBitrateButton.width + parent.spacing : 0))
+
+                        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: {
-                        // Refresh the text after translations change
-                        languageChanged.connect(valueChanged)
+                    Button {
+                        id: resetBitrateButton
+                        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
+                        }
                     }
                 }
 
@@ -915,6 +942,46 @@ Flickable {
             }
         }
 
+        GroupBox {
+            id: hostSettingsGroupBox
+            width: (parent.width - (parent.leftPadding + parent.rightPadding))
+            padding: 12
+            title: "<font color=\"skyblue\">" + qsTr("Host Settings") + "</font>"
+            font.pointSize: 12
+
+            Column {
+                anchors.fill: parent
+                spacing: 5
+
+                CheckBox {
+                    id: optimizeGameSettingsCheck
+                    width: parent.width
+                    text: qsTr("Optimize game settings for streaming")
+                    font.pointSize:  12
+                    checked: StreamingPreferences.gameOptimizations
+                    onCheckedChanged: {
+                        StreamingPreferences.gameOptimizations = checked
+                    }
+                }
+
+                CheckBox {
+                    id: quitAppAfter
+                    width: parent.width
+                    text: qsTr("Quit app on host PC after ending stream")
+                    font.pointSize: 12
+                    checked: StreamingPreferences.quitAppAfter
+                    onCheckedChanged: {
+                        StreamingPreferences.quitAppAfter = checked
+                    }
+
+                    ToolTip.delay: 1000
+                    ToolTip.timeout: 5000
+                    ToolTip.visible: hovered
+                    ToolTip.text: qsTr("This will close the app or game you are streaming when you end your stream. You will lose any unsaved progress!")
+                }
+            }
+        }
+
         GroupBox {
             id: uiSettingsGroupBox
             width: (parent.width - (parent.leftPadding + parent.rightPadding))
@@ -1014,10 +1081,10 @@ Flickable {
                             text: "Svenska" // Swedish
                             val: StreamingPreferences.LANG_SV
                         }
-                        /* ListElement {
+                        ListElement {
                             text: "Türkçe" // Turkish
                             val: StreamingPreferences.LANG_TR
-                        } */
+                        }
                         /* ListElement {
                             text: "Українська" // Ukrainian
                             val: StreamingPreferences.LANG_UK
@@ -1066,6 +1133,22 @@ Flickable {
                             text: "Lietuvių kalba" // Lithuanian
                             val: StreamingPreferences.LANG_LT
                         } */
+                        /* ListElement {
+                            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 : {
@@ -1153,6 +1236,17 @@ 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
@@ -1420,46 +1514,6 @@ Flickable {
             }
         }
 
-        GroupBox {
-            id: hostSettingsGroupBox
-            width: (parent.width - (parent.leftPadding + parent.rightPadding))
-            padding: 12
-            title: "<font color=\"skyblue\">" + qsTr("Host Settings") + "</font>"
-            font.pointSize: 12
-
-            Column {
-                anchors.fill: parent
-                spacing: 5
-
-                CheckBox {
-                    id: optimizeGameSettingsCheck
-                    width: parent.width
-                    text: qsTr("Optimize game settings for streaming")
-                    font.pointSize:  12
-                    checked: StreamingPreferences.gameOptimizations
-                    onCheckedChanged: {
-                        StreamingPreferences.gameOptimizations = checked
-                    }
-                }
-
-                CheckBox {
-                    id: quitAppAfter
-                    width: parent.width
-                    text: qsTr("Quit app on host PC after ending stream")
-                    font.pointSize: 12
-                    checked: StreamingPreferences.quitAppAfter
-                    onCheckedChanged: {
-                        StreamingPreferences.quitAppAfter = checked
-                    }
-
-                    ToolTip.delay: 1000
-                    ToolTip.timeout: 5000
-                    ToolTip.visible: hovered
-                    ToolTip.text: qsTr("This will close the app or game you are streaming when you end your stream. You will lose any unsaved progress!")
-                }
-            }
-        }
-
         GroupBox {
             id: advancedSettingsGroupBox
             width: (parent.width - (parent.leftPadding + parent.rightPadding))
@@ -1496,7 +1550,6 @@ Flickable {
 
                     id: decoderComboBox
                     textRole: "text"
-                    enabled: !enableHdr.checked
                     model: ListModel {
                         id: decoderListModel
                         ListElement {
@@ -1518,21 +1571,6 @@ Flickable {
                             StreamingPreferences.videoDecoderSelection = decoderListModel.get(currentIndex).val
                         }
                     }
-
-                    // This handles the state of the enableHdr checkbox changing
-                    onEnabledChanged: {
-                        if (enabled) {
-                            StreamingPreferences.videoDecoderSelection = decoderListModel.get(currentIndex).val
-                        }
-                        else {
-                            StreamingPreferences.videoDecoderSelection = StreamingPreferences.VDS_AUTO
-                        }
-                    }
-
-                    ToolTip.delay: 1000
-                    ToolTip.timeout: 5000
-                    ToolTip.visible: hovered && !enabled
-                    ToolTip.text: qsTr("Enabling HDR overrides manual decoder selections.")
                 }
 
                 Label {
@@ -1615,6 +1653,55 @@ Flickable {
                                       qsTr("HDR streaming is not supported on this PC.")
                 }
 
+                CheckBox {
+                    id: enableYUV444
+                    width: parent.width
+                    text: qsTr("Enable YUV 4:4:4 (Experimental)")
+                    font.pointSize: 12
+
+                    checked: StreamingPreferences.enableYUV444
+                    onCheckedChanged: {
+                        // This is called on init, so only reset to default bitrate when checked state changes.
+                        if (StreamingPreferences.enableYUV444 != checked) {
+                            StreamingPreferences.enableYUV444 = checked
+                            if (StreamingPreferences.autoAdjustBitrate) {
+                                StreamingPreferences.bitrateKbps = StreamingPreferences.getDefaultBitrate(StreamingPreferences.width,
+                                                                                                          StreamingPreferences.height,
+                                                                                                          StreamingPreferences.fps,
+                                                                                                          StreamingPreferences.enableYUV444);
+                                slider.value = StreamingPreferences.bitrateKbps
+                            }
+                        }
+                    }
+
+                    ToolTip.delay: 1000
+                    ToolTip.timeout: 5000
+                    ToolTip.visible: hovered
+                    ToolTip.text: enabled ?
+                                      qsTr("Good for streaming desktop and text-heavy games, but not recommended for fast-paced games.")
+                                    :
+                                      qsTr("YUV 4:4:4 is not supported on this PC.")
+                }
+
+                CheckBox {
+                    id: unlockBitrate
+                    width: parent.width
+                    text: qsTr("Unlock bitrate limit (Experimental)")
+                    font.pointSize: 12
+
+                    checked: StreamingPreferences.unlockBitrate
+                    onCheckedChanged: {
+                        StreamingPreferences.unlockBitrate = checked
+                        StreamingPreferences.bitrateKbps = Math.min(StreamingPreferences.bitrateKbps, slider.to)
+                        slider.value = StreamingPreferences.bitrateKbps
+                    }
+
+                    ToolTip.delay: 1000
+                    ToolTip.timeout: 5000
+                    ToolTip.visible: hovered
+                    ToolTip.text: qsTr("This unlocks extremely high video bitrates for use with Sunshine hosts. It should only be used when streaming over an Ethernet LAN connection.")
+                }
+
                 CheckBox {
                     id: enableMdns
                     width: parent.width

app/gui/StreamSegue.qml

@@ -76,7 +76,7 @@ Item {
             streamSegueErrorDialog.text += "\n\n" + qsTr("This PC's Internet connection is blocking Moonlight. Streaming over the Internet may not work while connected to this network.")
         }
 
-        // Enable GUI gamepad usage now
+        // Re-enable GUI gamepad usage now
         SdlGamepadKeyNavigation.enable()
 
         if (quitAfter) {
@@ -119,7 +119,7 @@ Item {
         // Show the toolbar again when popped off the stack
         toolBar.visible = true
 
-        // Enable GUI gamepad usage now
+        // Re-enable GUI gamepad usage now
         SdlGamepadKeyNavigation.enable()
     }
 
@@ -151,7 +151,7 @@ Item {
         // middle of the animation on Windows, which looks very
         // obviously broken.
         interval: 100
-        onTriggered: stageSpinner.running = true
+        onTriggered: stageSpinner.visible = true
     }
 
     Loader {
@@ -176,7 +176,7 @@ Item {
             gc()
 
             // Run the streaming session to completion
-            session.exec(Window.window)
+            session.exec(window)
         }
 
         sourceComponent: Item {}
@@ -188,7 +188,8 @@ Item {
 
         BusyIndicator {
             id: stageSpinner
-            running: false
+            running: visible
+            visible: false
         }
 
         Label {

app/gui/main.qml

@@ -22,7 +22,8 @@ ApplicationWindow {
     width: 1280
     height: 600
 
-    Component.onCompleted: {
+    // This function runs prior to creation of the initial StackView item
+    function doEarlyInit() {
         // Override the background color to Material 2 colors for Qt 6.5+
         // in order to improve contrast between GFE's placeholder box art
         // and the background of the app grid.
@@ -30,6 +31,10 @@ ApplicationWindow {
             Material.background = "#303030"
         }
 
+        SdlGamepadKeyNavigation.enable()
+    }
+
+    Component.onCompleted: {
         // Show the window according to the user's preferences
         if (SystemProperties.hasDesktopEnvironment) {
             if (StreamingPreferences.uiDisplayMode == StreamingPreferences.UI_MAXIMIZED) {
@@ -49,7 +54,7 @@ ApplicationWindow {
         if (SystemProperties.isWow64) {
             wow64Dialog.open()
         }
-        else if (!SystemProperties.hasHardwareAcceleration) {
+        else if (!SystemProperties.hasHardwareAcceleration && StreamingPreferences.videoDecoderSelection !== StreamingPreferences.VDS_FORCE_SOFTWARE) {
             if (SystemProperties.isRunningXWayland) {
                 xWaylandDialog.open()
             }
@@ -64,9 +69,19 @@ ApplicationWindow {
         }
     }
   
+    // 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) {
@@ -81,10 +96,16 @@ ApplicationWindow {
 
     StackView {
         id: stackView
-        initialItem: initialView
         anchors.fill: parent
         focus: true
 
+        Component.onCompleted: {
+            // Perform our early initialization before constructing
+            // the initial view and pushing it to the StackView
+            doEarlyInit()
+            push(initialView)
+        }
+
         onCurrentItemChanged: {
             // Ensure focus travels to the next view when going back
             if (currentItem) {
@@ -158,6 +179,9 @@ ApplicationWindow {
                 pollingActive = true
             }
         }
+
+        // Poll for gamepad input only when the window is in focus
+        SdlGamepadKeyNavigation.notifyWindowFocus(visible && active)
     }
 
     onActiveChanged: {
@@ -176,22 +200,15 @@ ApplicationWindow {
             // if focus does not return within a few minutes.
             inactivityTimer.restart()
         }
-    }
 
-    // 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");
+        // Poll for gamepad input only when the window is in focus
+        SdlGamepadKeyNavigation.notifyWindowFocus(visible && active)
     }
 
     function navigateTo(url, objectType)
     {
         var existingItem = stackView.find(function(item, index) {
-            return qmltypeof(item, objectType)
+            return item instanceof objectType
         })
 
         if (existingItem !== null) {
@@ -258,7 +275,7 @@ 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
@@ -268,7 +285,7 @@ ApplicationWindow {
             NavigableToolButton {
                 id: discordButton
                 visible: SystemProperties.hasBrowser &&
-                         qmltypeof(stackView.currentItem, "SettingsView")
+                         stackView.currentItem instanceof SettingsView
 
                 iconSource: "qrc:/res/discord.svg"
 
@@ -287,7 +304,7 @@ ApplicationWindow {
 
             NavigableToolButton {
                 id: addPcButton
-                visible: qmltypeof(stackView.currentItem, "PcView")
+                visible: stackView.currentItem instanceof PcView
 
                 iconSource:  "qrc:/res/ic_add_to_queue_white_48px.svg"
 
@@ -385,7 +402,7 @@ 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)
@@ -397,7 +414,7 @@ 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

@@ -13,6 +13,7 @@ SdlGamepadKeyNavigation::SdlGamepadKeyNavigation(StreamingPreferences* prefs)
       m_Enabled(false),
       m_UiNavMode(false),
       m_FirstPoll(false),
+      m_HasFocus(false),
       m_LastAxisNavigationEventTime(0)
 {
     m_PollingTimer = new QTimer(this);
@@ -54,7 +55,8 @@ void SdlGamepadKeyNavigation::enable()
     SDL_FlushEvent(SDL_CONTROLLERDEVICEADDED);
 
     // Open all currently attached game controllers
-    for (int i = 0; i < SDL_NumJoysticks(); i++) {
+    int numJoysticks = SDL_NumJoysticks();
+    for (int i = 0; i < numJoysticks; i++) {
         if (SDL_IsGameController(i)) {
             SDL_GameController* gc = SDL_GameControllerOpen(i);
             if (gc != nullptr) {
@@ -63,13 +65,10 @@ void SdlGamepadKeyNavigation::enable()
         }
     }
 
-    // Flush events on the first poll
-    m_FirstPoll = true;
-
-    // Poll every 50 ms for a new joystick event
-    m_PollingTimer->start(50);
-
     m_Enabled = true;
+
+    // Start the polling timer if the window is focused
+    updateTimerState();
 }
 
 void SdlGamepadKeyNavigation::disable()
@@ -78,7 +77,9 @@ void SdlGamepadKeyNavigation::disable()
         return;
     }
 
-    m_PollingTimer->stop();
+    m_Enabled = false;
+    updateTimerState();
+    Q_ASSERT(!m_PollingTimer->isActive());
 
     while (!m_Gamepads.isEmpty()) {
         SDL_GameControllerClose(m_Gamepads[0]);
@@ -86,8 +87,12 @@ void SdlGamepadKeyNavigation::disable()
     }
 
     SDL_QuitSubSystem(SDL_INIT_GAMECONTROLLER);
+}
 
-    m_Enabled = false;
+void SdlGamepadKeyNavigation::notifyWindowFocus(bool hasFocus)
+{
+    m_HasFocus = hasFocus;
+    updateTimerState();
 }
 
 void SdlGamepadKeyNavigation::onPollingTimerFired()
@@ -261,6 +266,20 @@ void SdlGamepadKeyNavigation::sendKey(QEvent::Type type, Qt::Key key, Qt::Keyboa
     }
 }
 
+void SdlGamepadKeyNavigation::updateTimerState()
+{
+    if (m_PollingTimer->isActive() && (!m_HasFocus || !m_Enabled)) {
+        m_PollingTimer->stop();
+    }
+    else if (!m_PollingTimer->isActive() && m_HasFocus && m_Enabled) {
+        // Flush events on the first poll
+        m_FirstPoll = true;
+
+        // Poll every 50 ms for a new joystick event
+        m_PollingTimer->start(50);
+    }
+}
+
 void SdlGamepadKeyNavigation::setUiNavMode(bool uiNavMode)
 {
     m_UiNavMode = uiNavMode;
@@ -271,7 +290,8 @@ int SdlGamepadKeyNavigation::getConnectedGamepads()
     Q_ASSERT(m_Enabled);
 
     int count = 0;
-    for (int i = 0; i < SDL_NumJoysticks(); i++) {
+    int numJoysticks = SDL_NumJoysticks();
+    for (int i = 0; i < numJoysticks; i++) {
         if (SDL_IsGameController(i)) {
             count++;
         }

app/gui/sdlgamepadkeynavigation.h

@@ -3,7 +3,7 @@
 #include <QTimer>
 #include <QEvent>
 
-#include <SDL.h>
+#include "SDL_compat.h"
 
 #include "settings/streamingpreferences.h"
 
@@ -20,6 +20,8 @@ public:
 
     Q_INVOKABLE void disable();
 
+    Q_INVOKABLE void notifyWindowFocus(bool hasFocus);
+
     Q_INVOKABLE void setUiNavMode(bool settingsMode);
 
     Q_INVOKABLE int getConnectedGamepads();
@@ -27,6 +29,8 @@ public:
 private:
     void sendKey(QEvent::Type type, Qt::Key key, Qt::KeyboardModifiers modifiers = Qt::NoModifier);
 
+    void updateTimerState();
+
 private slots:
     void onPollingTimerFired();
 
@@ -37,5 +41,6 @@ private:
     bool m_Enabled;
     bool m_UiNavMode;
     bool m_FirstPoll;
+    bool m_HasFocus;
     Uint32 m_LastAxisNavigationEventTime;
 };

app/main.cpp

@@ -17,7 +17,7 @@
 // doing the same thing. This needs to be before any headers
 // that might include SDL.h themselves.
 #define SDL_MAIN_HANDLED
-#include <SDL.h>
+#include "SDL_compat.h"
 
 #ifdef HAVE_FFMPEG
 #include "streaming/video/ffmpeg.h"
@@ -60,28 +60,55 @@
 // Log to console for debug Mac builds
 #endif
 
+// StreamUtils::setAsyncLogging() exposes control of this to the Session
+// class to enable async logging once the stream has started.
+//
+// FIXME: Clean this up
+QAtomicInt g_AsyncLoggingEnabled;
+
 static QElapsedTimer s_LoggerTime;
 static QTextStream s_LoggerStream(stderr);
-static QMutex s_LoggerLock;
+static QThreadPool s_LoggerThread;
+static QMutex s_SyncLoggerMutex;
 static bool s_SuppressVerboseOutput;
 static QRegularExpression k_RikeyRegex("&rikey=\\w+");
 static QRegularExpression k_RikeyIdRegex("&rikeyid=[\\d-]+");
 #ifdef LOG_TO_FILE
 // Max log file size of 10 MB
-#define MAX_LOG_SIZE_BYTES (10 * 1024 * 1024)
-static int s_LogBytesWritten = 0;
-static bool s_LogLimitReached = false;
+static const uint64_t k_MaxLogSizeBytes = 10 * 1024 * 1024;
+static QAtomicInteger<uint64_t> s_LogBytesWritten = 0;
 static QFile* s_LoggerFile;
 #endif
 
+class LoggerTask : public QRunnable
+{
+public:
+    LoggerTask(const QString& msg) : m_Msg(msg)
+    {
+        setAutoDelete(true);
+    }
+
+    void run() override
+    {
+        // QTextStream is not thread-safe, so we must lock. This will generally
+        // only contend in synchronous logging mode or during a transition
+        // between synchronous and asynchronous. Asynchronous won't contend in
+        // the common case because we only have a single logging thread.
+        QMutexLocker locker(&s_SyncLoggerMutex);
+        s_LoggerStream << m_Msg;
+        s_LoggerStream.flush();
+    }
+
+private:
+    QString m_Msg;
+};
+
 void logToLoggerStream(QString& message)
 {
-    QMutexLocker lock(&s_LoggerLock);
-
 #if defined(QT_DEBUG) && defined(Q_OS_WIN32)
     // Output log messages to a debugger if attached
     if (IsDebuggerPresent()) {
-        static QString lineBuffer;
+        thread_local QString lineBuffer;
         lineBuffer += message;
         if (message.endsWith('\n')) {
             OutputDebugStringW(lineBuffer.toStdWString().c_str());
@@ -95,26 +122,24 @@ void logToLoggerStream(QString& message)
     message.replace(k_RikeyIdRegex, "&rikeyid=REDACTED");
 
 #ifdef LOG_TO_FILE
-    if (s_LogLimitReached) {
+    auto oldLogSize = s_LogBytesWritten.fetchAndAddRelaxed(message.size());
+    if (oldLogSize >= k_MaxLogSizeBytes) {
         return;
     }
-    else if (s_LogBytesWritten >= MAX_LOG_SIZE_BYTES) {
-        s_LoggerStream << "Log size limit reached!";
-#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
-        s_LoggerStream << Qt::endl;
-#else
-        s_LoggerStream << endl;
-#endif
-        s_LogLimitReached = true;
-        return;
-    }
-    else {
-        s_LogBytesWritten += message.size();
+    else if (oldLogSize >= k_MaxLogSizeBytes - message.size()) {
+        // Write one final message
+        message = "Log size limit reached!";
     }
 #endif
 
-    s_LoggerStream << message;
-    s_LoggerStream.flush();
+    if (g_AsyncLoggingEnabled) {
+        // Queue the log message to be written asynchronously
+        s_LoggerThread.start(new LoggerTask(message));
+    }
+    else {
+        // Log the message immediately
+        LoggerTask(message).run();
+    }
 }
 
 void sdlLogToDiskHandler(void*, int category, SDL_LogPriority priority, const char* message)
@@ -284,6 +309,11 @@ LONG WINAPI UnhandledExceptionHandler(struct _EXCEPTION_POINTERS *ExceptionInfo)
         qCritical() << "Unhandled exception! Failed to open dump file:" << qDmpFileName << "with error" << GetLastError();
     }
 
+    // Sleep for a moment to allow the logging thread to finish up before crashing
+    if (g_AsyncLoggingEnabled) {
+        Sleep(500);
+    }
+
     // Let the program crash and WER collect a dump
     return EXCEPTION_CONTINUE_SEARCH;
 }
@@ -344,10 +374,20 @@ int main(int argc, char *argv[])
     }
 #endif
 
+    // Serialize log messages on a single thread
+    s_LoggerThread.setMaxThreadCount(1);
     s_LoggerTime.start();
-    qInstallMessageHandler(qtLogToDiskHandler);
-    SDL_LogSetOutputFunction(sdlLogToDiskHandler, nullptr);
 
+    // Register our logger with all libraries
+#if SDL_VERSION_ATLEAST(3, 0, 0)
+    SDL_SetLogOutputFunction(sdlLogToDiskHandler, nullptr);
+#else
+    SDL_LogOutputFunction oldSdlLogFn;
+    void* oldSdlLogUserdata;
+    SDL_LogGetOutputFunction(&oldSdlLogFn, &oldSdlLogUserdata);
+    SDL_LogSetOutputFunction(sdlLogToDiskHandler, nullptr);
+#endif
+    qInstallMessageHandler(qtLogToDiskHandler);
 #ifdef HAVE_FFMPEG
     av_log_set_callback(ffmpegLogToDiskHandler);
 #endif
@@ -435,7 +475,7 @@ int main(int argc, char *argv[])
 #endif
     }
 
-#if !defined(Q_PROCESSOR_X86) && defined(SDL_HINT_VIDEO_X11_FORCE_EGL)
+#ifndef Q_PROCESSOR_X86
     // Some ARM and RISC-V embedded devices don't have working GLX which can cause
     // SDL to fail to find a working OpenGL implementation at all. Let's force EGL
     // on non-x86 platforms, since GLX is deprecated anyway.
@@ -490,19 +530,13 @@ int main(int argc, char *argv[])
     // initializing the SDL video subsystem to have any effect.
     SDL_SetHint(SDL_HINT_VIDEO_ALLOW_SCREENSAVER, "1");
 
-    // For SDL backends that support it, use double buffering instead of triple buffering
-    // to save a frame of latency. This doesn't matter for MMAL or DRM renderers since they
-    // are drawing directly to the screen without involving SDL, but it may matter for other
-    // future KMSDRM platforms that use SDL for rendering.
-    SDL_SetHint(SDL_HINT_VIDEO_DOUBLE_BUFFER, "1");
-
     // We use MMAL to render on Raspberry Pi, so we do not require DRM master.
-    SDL_SetHint("SDL_KMSDRM_REQUIRE_DRM_MASTER", "0");
+    SDL_SetHint(SDL_HINT_KMSDRM_REQUIRE_DRM_MASTER, "0");
 
     // Use Direct3D 9Ex to avoid a deadlock caused by the D3D device being reset when
     // the user triggers a UAC prompt. This option controls the software/SDL renderer.
     // The DXVA2 renderer uses Direct3D 9Ex itself directly.
-    SDL_SetHint("SDL_WINDOWS_USE_D3D9EX", "1");
+    SDL_SetHint(SDL_HINT_WINDOWS_USE_D3D9EX, "1");
 
     if (SDL_InitSubSystem(SDL_INIT_TIMER) != 0) {
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
@@ -537,28 +571,28 @@ int main(int argc, char *argv[])
     // SDL 2.0.12 changes the default behavior to use the button label rather than the button
     // position as most other software does. Set this back to 0 to stay consistent with prior
     // releases of Moonlight.
-    SDL_SetHint("SDL_GAMECONTROLLER_USE_BUTTON_LABELS", "0");
+    SDL_SetHint(SDL_HINT_GAMECONTROLLER_USE_BUTTON_LABELS, "0");
 
     // Disable relative mouse scaling to renderer size or logical DPI. We want to send
     // the mouse motion exactly how it was given to us.
-    SDL_SetHint("SDL_MOUSE_RELATIVE_SCALING", "0");
+    SDL_SetHint(SDL_HINT_MOUSE_RELATIVE_SCALING, "0");
 
     // Set our app name for SDL to use with PulseAudio and PipeWire. This matches what we
     // provide as our app name to libsoundio too. On SDL 2.0.18+, SDL_APP_NAME is also used
     // for screensaver inhibitor reporting.
-    SDL_SetHint("SDL_AUDIO_DEVICE_APP_NAME", "Moonlight");
-    SDL_SetHint("SDL_APP_NAME", "Moonlight");
+    SDL_SetHint(SDL_HINT_AUDIO_DEVICE_APP_NAME, "Moonlight");
+    SDL_SetHint(SDL_HINT_APP_NAME, "Moonlight");
 
     // We handle capturing the mouse ourselves when it leaves the window, so we don't need
     // SDL doing it for us behind our backs.
-    SDL_SetHint("SDL_MOUSE_AUTO_CAPTURE", "0");
+    SDL_SetHint(SDL_HINT_MOUSE_AUTO_CAPTURE, "0");
 
     // SDL will try to lock the mouse cursor on Wayland if it's not visible in order to
     // support applications that assume they can warp the cursor (which isn't possible
     // on Wayland). We don't want this behavior because it interferes with seamless mouse
     // mode when toggling between windowed and fullscreen modes by unexpectedly locking
     // the mouse cursor.
-    SDL_SetHint("SDL_VIDEO_WAYLAND_EMULATE_MOUSE_WARP", "0");
+    SDL_SetHint(SDL_HINT_VIDEO_WAYLAND_EMULATE_MOUSE_WARP, "0");
 
 #ifdef QT_DEBUG
     // Allow thread naming using exceptions on debug builds. SDL doesn't use SEH
@@ -577,31 +611,32 @@ int main(int argc, char *argv[])
     }
 #endif
 
+#ifdef Q_OS_WIN32
+    // If we don't have stdout or stderr handles (which will normally be the case
+    // since we're a /SUBSYSTEM:WINDOWS app), attach to our parent console and use
+    // that for stdout and stderr.
+    //
+    // If we do have stdout or stderr handles, that means the user has used standard
+    // handle redirection. In that case, we don't want to override those handles.
+    if (AttachConsole(ATTACH_PARENT_PROCESS)) {
+        // If we didn't have an old stdout/stderr handle, use the new CONOUT$ handle
+        if (IS_UNSPECIFIED_HANDLE(oldConOut)) {
+            freopen("CONOUT$", "w", stdout);
+            setvbuf(stdout, NULL, _IONBF, 0);
+        }
+        if (IS_UNSPECIFIED_HANDLE(oldConErr)) {
+            freopen("CONOUT$", "w", stderr);
+            setvbuf(stderr, NULL, _IONBF, 0);
+        }
+    }
+#endif
+
     GlobalCommandLineParser parser;
     GlobalCommandLineParser::ParseResult commandLineParserResult = parser.parse(app.arguments());
     switch (commandLineParserResult) {
     case GlobalCommandLineParser::ListRequested:
         // Don't log to the console since it will jumble the command output
         s_SuppressVerboseOutput = true;
-#ifdef Q_OS_WIN32
-        // If we don't have stdout or stderr handles (which will normally be the case
-        // since we're a /SUBSYSTEM:WINDOWS app), attach to our parent console and use
-        // that for stdout and stderr.
-        //
-        // If we do have stdout or stderr handles, that means the user has used standard
-        // handle redirection. In that case, we don't want to override those handles.
-        if (AttachConsole(ATTACH_PARENT_PROCESS)) {
-            // If we didn't have an old stdout/stderr handle, use the new CONOUT$ handle
-            if (IS_UNSPECIFIED_HANDLE(oldConOut)) {
-                freopen("CONOUT$", "w", stdout);
-                setvbuf(stdout, NULL, _IONBF, 0);
-            }
-            if (IS_UNSPECIFIED_HANDLE(oldConErr)) {
-                freopen("CONOUT$", "w", stderr);
-                setvbuf(stderr, NULL, _IONBF, 0);
-            }
-        }
-#endif
         break;
     default:
         break;
@@ -675,7 +710,7 @@ int main(int argc, char *argv[])
 #endif
 
     // This is necessary to show our icon correctly on Wayland
-    app.setDesktopFileName("com.moonlight_stream.Moonlight.desktop");
+    app.setDesktopFileName("com.moonlight_stream.Moonlight");
     qputenv("SDL_VIDEO_WAYLAND_WMCLASS", "com.moonlight_stream.Moonlight");
     qputenv("SDL_VIDEO_X11_WMCLASS", "com.moonlight_stream.Moonlight");
 
@@ -725,6 +760,12 @@ int main(int argc, char *argv[])
     if (!qEnvironmentVariableIsSet("QT_QUICK_CONTROLS_MATERIAL_VARIANT")) {
         qputenv("QT_QUICK_CONTROLS_MATERIAL_VARIANT", "Dense");
     }
+    if (!qEnvironmentVariableIsSet("QT_QUICK_CONTROLS_MATERIAL_PRIMARY")) {
+        // Qt 6.9 began to use a different shade of Material.Indigo when we use a dark theme
+        // (which is all the time). The new color looks washed out, so manually specify the
+        // old primary color unless the user overrides it themselves.
+        qputenv("QT_QUICK_CONTROLS_MATERIAL_PRIMARY", "#3F51B5");
+    }
 
     QQmlApplicationEngine engine;
     QString initialView;
@@ -790,6 +831,23 @@ int main(int argc, char *argv[])
     // sometimes freezing and blocking process exit.
     QThreadPool::globalInstance()->waitForDone(30000);
 
+    // Restore the default logger for all libraries before shutting down ours
+#if SDL_VERSION_ATLEAST(3, 0, 0)
+    SDL_SetLogOutputFunction(SDL_GetDefaultLogOutputFunction(), nullptr);
+#else
+    SDL_LogSetOutputFunction(oldSdlLogFn, oldSdlLogUserdata);
+#endif
+    qInstallMessageHandler(nullptr);
+#ifdef HAVE_FFMPEG
+    av_log_set_callback(av_log_default_callback);
+#endif
+
+    // We should not be in async logging mode anymore
+    Q_ASSERT(g_AsyncLoggingEnabled == 0);
+
+    // Wait for pending log messages to be printed
+    s_LoggerThread.waitForDone();
+
 #ifdef Q_OS_WIN32
     // Without an explicit flush, console redirection for the list command
     // doesn't work reliably (sometimes the target file contains no text).

app/masterhook.c

@@ -9,17 +9,21 @@
 // The specific kernel change required to run without root is:
 // https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=45bc3d26c95a8fc63a7d8668ca9e57ef0883351c
 
+#ifndef _GNU_SOURCE
 #define _GNU_SOURCE
+#endif
 
 // NOTE: This file MUST NOT include fcntl.h due to open() -> open64()
 // redirection that happens when _FILE_OFFSET_BITS=64!
 // See masterhook_internal.c for details.
 
-#include <SDL.h>
+#include "SDL_compat.h"
 #include <dlfcn.h>
 #include <unistd.h>
 #include <errno.h>
+#include <stdbool.h>
 #include <sys/stat.h>
+#include <pthread.h>
 
 #include <xf86drm.h>
 #include <xf86drmMode.h>
@@ -32,12 +36,44 @@
 // hooks, that is definitely not trivial.
 #if SDL_VERSION_ATLEAST(2, 0, 15)
 
+// We don't include fcntl.h, so we have to define this ourselves
+typedef int (*fn_open_t)(const char *pathname, int flags, ...);
+
+// Pointers to the real implementations of these libdrm functions
+static pthread_once_t s_InitDrmFunctions = PTHREAD_ONCE_INIT;
+static typeof(drmModeSetCrtc)* fn_drmModeSetCrtc;
+static typeof(drmModePageFlip)* fn_drmModePageFlip;
+static typeof(drmModeAtomicCommit)* fn_drmModeAtomicCommit;
+
+static void lookupRealDrmFunctions() {
+    fn_drmModeSetCrtc = dlsym(RTLD_NEXT, "drmModeSetCrtc");
+    fn_drmModePageFlip = dlsym(RTLD_NEXT, "drmModePageFlip");
+    fn_drmModeAtomicCommit = dlsym(RTLD_NEXT, "drmModeAtomicCommit");
+}
+
+// Pointers to the real implementations of these libc functions
+static pthread_once_t s_InitLibCFunctions = PTHREAD_ONCE_INIT;
+static fn_open_t *fn_open;
+static fn_open_t *fn_open64;
+static typeof(close) *fn_close;
+
+static void lookupRealLibCFunctions() {
+    fn_open = dlsym(RTLD_NEXT, "open");
+    fn_open64 = dlsym(RTLD_NEXT, "open64");
+    fn_close = dlsym(RTLD_NEXT, "close");
+}
+
 // Qt's DRM master FD grabbed by our hook
 int g_QtDrmMasterFd = -1;
 struct stat g_DrmMasterStat;
 
-// The DRM master FD created for SDL
-int g_SdlDrmMasterFd = -1;
+// Last CRTC state for us to restore later
+drmModeCrtcPtr g_QtCrtcState;
+uint32_t* g_QtCrtcConnectors;
+int g_QtCrtcConnectorCount;
+
+bool removeSdlFd(int fd);
+int takeMasterFromSdlFd(void);
 
 int drmIsMaster(int fd)
 {
@@ -51,6 +87,9 @@ int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
                    uint32_t x, uint32_t y, uint32_t *connectors, int count,
                    drmModeModeInfoPtr mode)
 {
+    // Lookup the real libdrm function pointers if we haven't yet
+    pthread_once(&s_InitDrmFunctions, lookupRealDrmFunctions);
+
     // Grab the first DRM Master FD that makes it in here. This will be the Qt
     // EGLFS backend's DRM FD, on which we will call drmDropMaster() later.
     if (g_QtDrmMasterFd == -1 && drmIsMaster(fd)) {
@@ -62,13 +101,53 @@ int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
     }
 
     // Call into the real thing
-    return ((typeof(drmModeSetCrtc)*)dlsym(RTLD_NEXT, __FUNCTION__))(fd, crtcId, bufferId, x, y, connectors, count, mode);
+    int err = fn_drmModeSetCrtc(fd, crtcId, bufferId, x, y, connectors, count, mode);
+    if (err == 0 && fd == g_QtDrmMasterFd) {
+        // Free old CRTC state (if any)
+        if (g_QtCrtcState) {
+            drmModeFreeCrtc(g_QtCrtcState);
+        }
+        if (g_QtCrtcConnectors) {
+            free(g_QtCrtcConnectors);
+        }
+
+        // Store the CRTC configuration so we can restore it later
+        g_QtCrtcState = drmModeGetCrtc(fd, crtcId);
+        g_QtCrtcConnectors = calloc(count, sizeof(*g_QtCrtcConnectors));
+        memcpy(g_QtCrtcConnectors, connectors, count * sizeof(*connectors));
+        g_QtCrtcConnectorCount = count;
+    }
+    return err;
+}
+
+// This hook will temporarily retake DRM master to allow Qt to render while SDL has a DRM FD open
+int drmModePageFlip(int fd, uint32_t crtc_id, uint32_t fb_id, uint32_t flags, void *user_data)
+{
+    // Lookup the real libdrm function pointers if we haven't yet
+    pthread_once(&s_InitDrmFunctions, lookupRealDrmFunctions);
+
+    // Call into the real thing
+    int err = fn_drmModePageFlip(fd, crtc_id, fb_id, flags, user_data);
+    if (err == -EACCES && fd == g_QtDrmMasterFd) {
+        // If SDL took master from us, try to grab it back temporarily
+        int oldMasterFd = takeMasterFromSdlFd();
+        drmSetMaster(fd);
+        err = fn_drmModePageFlip(fd, crtc_id, fb_id, flags, user_data);
+        drmDropMaster(fd);
+        if (oldMasterFd != -1) {
+            drmSetMaster(oldMasterFd);
+        }
+    }
+    return err;
 }
 
 // This hook will handle atomic DRM rendering
 int drmModeAtomicCommit(int fd, drmModeAtomicReqPtr req,
                         uint32_t flags, void *user_data)
 {
+    // Lookup the real libdrm function pointers if we haven't yet
+    pthread_once(&s_InitDrmFunctions, lookupRealDrmFunctions);
+
     // Grab the first DRM Master FD that makes it in here. This will be the Qt
     // EGLFS backend's DRM FD, on which we will call drmDropMaster() later.
     if (g_QtDrmMasterFd == -1 && drmIsMaster(fd)) {
@@ -80,29 +159,46 @@ int drmModeAtomicCommit(int fd, drmModeAtomicReqPtr req,
     }
 
     // Call into the real thing
-    return ((typeof(drmModeAtomicCommit)*)dlsym(RTLD_NEXT, __FUNCTION__))(fd, req, flags, user_data);
+    int err = fn_drmModeAtomicCommit(fd, req, flags, user_data);
+    if (err == -EACCES && fd == g_QtDrmMasterFd) {
+        // If SDL took master from us, try to grab it back temporarily
+        int oldMasterFd = takeMasterFromSdlFd();
+        drmSetMaster(fd);
+        err = fn_drmModeAtomicCommit(fd, req, flags, user_data);
+        drmDropMaster(fd);
+        if (oldMasterFd != -1) {
+            drmSetMaster(oldMasterFd);
+        }
+    }
+    return err;
 }
 
 // This hook will handle SDL's open() on the DRM device. We just need to
 // hook this variant of open(), since that's what SDL uses. When we see
 // the open a FD for the same card as the Qt DRM master FD, we'll drop
 // master on the Qt FD to allow the new FD to have master.
-int openHook(const char *funcname, const char *pathname, int flags, va_list va);
+int openHook(fn_open_t *real_open, typeof(close) *real_close, const char *pathname, int flags, va_list va);
 
 int open(const char *pathname, int flags, ...)
 {
+    // Lookup the real libc functions if we haven't yet
+    pthread_once(&s_InitLibCFunctions, lookupRealLibCFunctions);
+
     va_list va;
     va_start(va, flags);
-    int fd = openHook(__FUNCTION__, pathname, flags, va);
+    int fd = openHook(fn_open, fn_close, pathname, flags, va);
     va_end(va);
     return fd;
 }
 
 int open64(const char *pathname, int flags, ...)
 {
+    // Lookup the real libc functions if we haven't yet
+    pthread_once(&s_InitLibCFunctions, lookupRealLibCFunctions);
+
     va_list va;
     va_start(va, flags);
-    int fd = openHook(__FUNCTION__, pathname, flags, va);
+    int fd = openHook(fn_open64, fn_close, pathname, flags, va);
     va_end(va);
     return fd;
 }
@@ -111,23 +207,43 @@ int open64(const char *pathname, int flags, ...)
 // after SDL closes its DRM FD.
 int close(int fd)
 {
+    // Lookup the real libc functions if we haven't yet
+    pthread_once(&s_InitLibCFunctions, lookupRealLibCFunctions);
+
+    // Remove this entry from the SDL FD table
+    bool lastSdlFd = removeSdlFd(fd);
+
     // Call the real thing
-    int ret = ((typeof(close)*)dlsym(RTLD_NEXT, __FUNCTION__))(fd);
-    if (ret == 0) {
-        // If we just closed the SDL DRM master FD, restore master
-        // to the Qt DRM FD. This works because the Qt DRM master FD
-        // was master once before, so we can set it as master again
-        // using drmSetMaster() without CAP_SYS_ADMIN.
-        if (g_SdlDrmMasterFd != -1 && fd == g_SdlDrmMasterFd) {
-            if (drmSetMaster(g_QtDrmMasterFd) < 0) {
+    int ret = fn_close(fd);
+
+    // If we closed the last SDL FD, restore master to the Qt FD
+    if (ret == 0 && lastSdlFd) {
+        if (drmSetMaster(g_QtDrmMasterFd) < 0) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "Failed to restore master to Qt DRM FD: %d",
+                         errno);
+        }
+
+        // Reset the CRTC state to how Qt configured it
+        if (g_QtCrtcState) {
+            SDL_assert(fn_drmModeSetCrtc != NULL);
+            int err = fn_drmModeSetCrtc(g_QtDrmMasterFd,
+                                        g_QtCrtcState->crtc_id,
+                                        g_QtCrtcState->buffer_id,
+                                        g_QtCrtcState->x,
+                                        g_QtCrtcState->y,
+                                        g_QtCrtcConnectors,
+                                        g_QtCrtcConnectorCount,
+                                        g_QtCrtcState->mode_valid ?
+                                              &g_QtCrtcState->mode : NULL);
+            if (err < 0) {
                 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                             "Failed to restore master to Qt DRM FD: %d",
+                             "Failed to restore CRTC state to Qt DRM FD: %d",
                              errno);
             }
-
-            g_SdlDrmMasterFd = -1;
         }
     }
+
     return ret;
 }
 

app/masterhook_internal.c

@@ -2,14 +2,17 @@
 // which must be in a separate compilation unit due to fcntl.h doing
 // unwanted redirection of open() to open64().
 
+#ifndef _GNU_SOURCE
 #define _GNU_SOURCE
+#endif
 
-#include <SDL.h>
-#include <dlfcn.h>
+#include "SDL_compat.h"
 #include <fcntl.h>
 #include <unistd.h>
 #include <errno.h>
+#include <stdbool.h>
 #include <sys/stat.h>
+#include <pthread.h>
 
 #include <xf86drm.h>
 #include <xf86drmMode.h>
@@ -28,9 +31,75 @@
 
 extern int g_QtDrmMasterFd;
 extern struct stat g_DrmMasterStat;
-extern int g_SdlDrmMasterFd;
 
-int openHook(const char *funcname, const char *pathname, int flags, va_list va)
+#define MAX_SDL_FD_COUNT 8
+int g_SdlDrmMasterFds[MAX_SDL_FD_COUNT];
+int g_SdlDrmMasterFdCount = 0;
+pthread_mutex_t g_FdTableLock = PTHREAD_MUTEX_INITIALIZER;
+
+// Caller must hold g_FdTableLock
+int getSdlFdEntryIndex(bool unused)
+{
+    for (int i = 0; i < MAX_SDL_FD_COUNT; i++) {
+        // We slightly bend the FD rules here by treating 0
+        // as invalid since that's our global default value.
+        if (unused && g_SdlDrmMasterFds[i] <= 0) {
+            return i;
+        }
+        else if (!unused && g_SdlDrmMasterFds[i] > 0) {
+            return i;
+        }
+    }
+
+    return -1;
+}
+
+// Returns true if the final SDL FD was removed
+bool removeSdlFd(int fd)
+{
+    pthread_mutex_lock(&g_FdTableLock);
+    if (g_SdlDrmMasterFdCount != 0) {
+        // Clear the entry for this fd from the table
+        for (int i = 0; i < MAX_SDL_FD_COUNT; i++) {
+            if (fd == g_SdlDrmMasterFds[i]) {
+                g_SdlDrmMasterFds[i] = -1;
+                g_SdlDrmMasterFdCount--;
+                break;
+            }
+        }
+
+        if (g_SdlDrmMasterFdCount == 0) {
+            pthread_mutex_unlock(&g_FdTableLock);
+            return true;
+        }
+    }
+    pthread_mutex_unlock(&g_FdTableLock);
+    return false;
+}
+
+// Returns the previous master FD or -1 if none
+int takeMasterFromSdlFd()
+{
+    int fd = -1;
+
+    // Since all SDL FDs are actually dups of each other
+    // we can take master from any one of them.
+    pthread_mutex_lock(&g_FdTableLock);
+    int fdIndex = getSdlFdEntryIndex(false);
+    if (fdIndex != -1) {
+        fd = g_SdlDrmMasterFds[fdIndex];
+    }
+    pthread_mutex_unlock(&g_FdTableLock);
+
+    if (fd >= 0 && drmDropMaster(fd) == 0) {
+        return fd;
+    }
+    else {
+        return -1;
+    }
+}
+
+int openHook(typeof(open) *real_open, typeof(close) *real_close, const char *pathname, int flags, va_list va)
 {
     int fd;
     mode_t mode;
@@ -38,11 +107,11 @@ int openHook(const char *funcname, const char *pathname, int flags, va_list va)
     // Call the real thing to do the open operation
     if (__OPEN_NEEDS_MODE(flags)) {
         mode = va_arg(va, mode_t);
-        fd = ((typeof(open)*)dlsym(RTLD_NEXT, funcname))(pathname, flags, mode);
+        fd = real_open(pathname, flags, mode);
     }
     else {
         mode = 0;
-        fd = ((typeof(open)*)dlsym(RTLD_NEXT, funcname))(pathname, flags);
+        fd = real_open(pathname, flags);
     }
 
     // If the file was successfully opened and we have a DRM master FD,
@@ -55,32 +124,67 @@ int openHook(const char *funcname, const char *pathname, int flags, va_list va)
             fstat(fd, &fdstat);
             if (g_DrmMasterStat.st_dev == fdstat.st_dev &&
                     g_DrmMasterStat.st_ino == fdstat.st_ino) {
+                int freeFdIndex;
+                int allocatedFdIndex;
+
                 // It is our device. Time to do the magic!
+                pthread_mutex_lock(&g_FdTableLock);
 
-                // This code assumes SDL only ever opens a single FD
-                // for a given DRM device.
-                SDL_assert(g_SdlDrmMasterFd == -1);
-
-                // Drop master on Qt's FD so we can pick it up for SDL.
-                if (drmDropMaster(g_QtDrmMasterFd) < 0) {
+                // Get a free index for us to put the new entry
+                freeFdIndex = getSdlFdEntryIndex(true);
+                if (freeFdIndex < 0) {
+                    pthread_mutex_unlock(&g_FdTableLock);
+                    SDL_assert(freeFdIndex >= 0);
                     SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                                 "Failed to drop master on Qt DRM FD: %d",
-                                 errno);
+                                 "No unused SDL FD table entries!");
                     // Hope for the best
                     return fd;
                 }
 
-                // We are not allowed to call drmSetMaster() without CAP_SYS_ADMIN,
-                // but since we just dropped the master, we can become master by
-                // simply creating a new FD. Let's do it.
-                close(fd);
-                if (__OPEN_NEEDS_MODE(flags)) {
-                    fd = ((typeof(open)*)dlsym(RTLD_NEXT, funcname))(pathname, flags, mode);
+                // Check if we have an allocated entry already
+                allocatedFdIndex = getSdlFdEntryIndex(false);
+                if (allocatedFdIndex >= 0) {
+                    // Close fd that we opened earlier (skipping our close() hook)
+                    real_close(fd);
+
+                    // dup() an existing FD into the unused slot
+                    fd = dup(g_SdlDrmMasterFds[allocatedFdIndex]);
                 }
                 else {
-                    fd = ((typeof(open)*)dlsym(RTLD_NEXT, funcname))(pathname, flags);
+                    // Drop master on Qt's FD so we can pick it up for SDL.
+                    if (drmDropMaster(g_QtDrmMasterFd) < 0) {
+                        pthread_mutex_unlock(&g_FdTableLock);
+                        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                                     "Failed to drop master on Qt DRM FD: %d",
+                                     errno);
+                        // Hope for the best
+                        return fd;
+                    }
+
+                    // Close fd that we opened earlier (skipping our close() hook)
+                    real_close(fd);
+
+                    // We are not allowed to call drmSetMaster() without CAP_SYS_ADMIN,
+                    // but since we just dropped the master, we can become master by
+                    // simply creating a new FD. Let's do it.
+                    if (__OPEN_NEEDS_MODE(flags)) {
+                        fd = real_open(pathname, flags, mode);
+                    }
+                    else {
+                        fd = real_open(pathname, flags);
+                    }
                 }
-                g_SdlDrmMasterFd = fd;
+
+                if (fd >= 0) {
+                    // Start with DRM master on the new FD
+                    drmSetMaster(fd);
+
+                    // Insert the FD into the table
+                    g_SdlDrmMasterFds[freeFdIndex] = fd;
+                    g_SdlDrmMasterFdCount++;
+                }
+
+                pthread_mutex_unlock(&g_FdTableLock);
             }
         }
     }

app/path.cpp

@@ -32,7 +32,9 @@ QString Path::getQmlCacheDir()
 QByteArray Path::readDataFile(QString fileName)
 {
     QFile dataFile(getDataFilePath(fileName));
-    dataFile.open(QIODevice::ReadOnly);
+    if (!dataFile.open(QIODevice::ReadOnly)) {
+        return {};
+    }
     return dataFile.readAll();
 }
 
@@ -46,8 +48,9 @@ void Path::writeCacheFile(QString fileName, QByteArray data)
     }
 
     QFile dataFile(cacheDir.absoluteFilePath(fileName));
-    dataFile.open(QIODevice::WriteOnly);
-    dataFile.write(data);
+    if (dataFile.open(QIODevice::WriteOnly)) {
+        dataFile.write(data);
+    }
 }
 
 void Path::deleteCacheFile(QString fileName)

app/resources.qrc

@@ -68,6 +68,14 @@
         <file>languages/qml_ckb.qm</file>
         <file>languages/qml_lt.ts</file>
         <file>languages/qml_lt.qm</file>
+        <file>languages/qml_et.ts</file>
+        <file>languages/qml_et.qm</file>
+        <file>languages/qml_bg.ts</file>
+        <file>languages/qml_bg.qm</file>
+        <file>languages/qml_eo.ts</file>
+        <file>languages/qml_eo.qm</file>
+        <file>languages/qml_ta.ts</file>
+        <file>languages/qml_ta.qm</file>
         <!-- Don't include pt_BR until it is more complete -->
         <!--file>languages/qml_pt_BR.qm</file-->
         <!--file>languages/qml_pt_BR.ts</file-->
@@ -86,6 +94,8 @@
         <file alias="d3d11_genyuv_pixel.fxc">shaders/d3d11_genyuv_pixel.fxc</file>
         <file alias="d3d11_bt601lim_pixel.fxc">shaders/d3d11_bt601lim_pixel.fxc</file>
         <file alias="d3d11_bt2020lim_pixel.fxc">shaders/d3d11_bt2020lim_pixel.fxc</file>
+        <file alias="d3d11_ayuv_pixel.fxc">shaders/d3d11_ayuv_pixel.fxc</file>
+        <file alias="d3d11_y410_pixel.fxc">shaders/d3d11_y410_pixel.fxc</file>
         <file alias="vt_renderer.metal">shaders/vt_renderer.metal</file>
     </qresource>
 </RCC>

app/settings/mappingmanager.cpp

@@ -3,7 +3,7 @@
 
 #include <QDir>
 
-#include <SDL.h>
+#include "SDL_compat.h"
 
 #define SER_GAMEPADMAPPING "gcmapping"
 

app/settings/streamingpreferences.cpp

@@ -15,6 +15,8 @@
 #define SER_HEIGHT "height"
 #define SER_FPS "fps"
 #define SER_BITRATE "bitrate"
+#define SER_UNLOCK_BITRATE "unlockbitrate"
+#define SER_AUTOADJUSTBITRATE "autoadjustbitrate"
 #define SER_FULLSCREEN "fullscreen"
 #define SER_VSYNC "vsync"
 #define SER_GAMEOPTS "gameopts"
@@ -23,6 +25,7 @@
 #define SER_AUDIOCFG "audiocfg"
 #define SER_VIDEOCFG "videocfg"
 #define SER_HDR "hdr"
+#define SER_YUV444 "yuv444"
 #define SER_VIDEODEC "videodec"
 #define SER_WINDOWMODE "windowmode"
 #define SER_MDNS "mdns"
@@ -32,6 +35,7 @@
 #define SER_STARTWINDOWED "startwindowed"
 #define SER_FRAMEPACING "framepacing"
 #define SER_CONNWARNINGS "connwarnings"
+#define SER_CONFWARNINGS "confwarnings"
 #define SER_UIDISPLAYMODE "uidisplaymode"
 #define SER_RICHPRESENCE "richpresence"
 #define SER_GAMEPADMOUSE "gamepadmouse"
@@ -117,7 +121,10 @@ void StreamingPreferences::reload()
     width = settings.value(SER_WIDTH, 1280).toInt();
     height = settings.value(SER_HEIGHT, 720).toInt();
     fps = settings.value(SER_FPS, 60).toInt();
-    bitrateKbps = settings.value(SER_BITRATE, getDefaultBitrate(width, height, fps)).toInt();
+    enableYUV444 = settings.value(SER_YUV444, false).toBool();
+    bitrateKbps = settings.value(SER_BITRATE, getDefaultBitrate(width, height, fps, enableYUV444)).toInt();
+    unlockBitrate = settings.value(SER_UNLOCK_BITRATE, false).toBool();
+    autoAdjustBitrate = settings.value(SER_AUTOADJUSTBITRATE, true).toBool();
     enableVsync = settings.value(SER_VSYNC, true).toBool();
     gameOptimizations = settings.value(SER_GAMEOPTS, true).toBool();
     playAudioOnHost = settings.value(SER_HOSTAUDIO, false).toBool();
@@ -128,6 +135,7 @@ void StreamingPreferences::reload()
     absoluteTouchMode = settings.value(SER_ABSTOUCHMODE, true).toBool();
     framePacing = settings.value(SER_FRAMEPACING, false).toBool();
     connectionWarnings = settings.value(SER_CONNWARNINGS, true).toBool();
+    configurationWarnings = settings.value(SER_CONFWARNINGS, true).toBool();
     richPresence = settings.value(SER_RICHPRESENCE, true).toBool();
     gamepadMouse = settings.value(SER_GAMEPADMOUSE, true).toBool();
     detectNetworkBlocking = settings.value(SER_DETECTNETBLOCKING, true).toBool();
@@ -291,6 +299,14 @@ QString StreamingPreferences::getSuffixFromLanguage(StreamingPreferences::Langua
         return "ckb";
     case LANG_LT:
         return "lt";
+    case LANG_ET:
+        return "et";
+    case LANG_BG:
+        return "bg";
+    case LANG_EO:
+        return "eo";
+    case LANG_TA:
+        return "ta";
     case LANG_AUTO:
     default:
         return QLocale::system().name();
@@ -305,6 +321,8 @@ void StreamingPreferences::save()
     settings.setValue(SER_HEIGHT, height);
     settings.setValue(SER_FPS, fps);
     settings.setValue(SER_BITRATE, bitrateKbps);
+    settings.setValue(SER_UNLOCK_BITRATE, unlockBitrate);
+    settings.setValue(SER_AUTOADJUSTBITRATE, autoAdjustBitrate);
     settings.setValue(SER_VSYNC, enableVsync);
     settings.setValue(SER_GAMEOPTS, gameOptimizations);
     settings.setValue(SER_HOSTAUDIO, playAudioOnHost);
@@ -315,6 +333,7 @@ void StreamingPreferences::save()
     settings.setValue(SER_ABSTOUCHMODE, absoluteTouchMode);
     settings.setValue(SER_FRAMEPACING, framePacing);
     settings.setValue(SER_CONNWARNINGS, connectionWarnings);
+    settings.setValue(SER_CONFWARNINGS, configurationWarnings);
     settings.setValue(SER_RICHPRESENCE, richPresence);
     settings.setValue(SER_GAMEPADMOUSE, gamepadMouse);
     settings.setValue(SER_PACKETSIZE, packetSize);
@@ -322,6 +341,7 @@ void StreamingPreferences::save()
     settings.setValue(SER_SHOWPERFOVERLAY, showPerformanceOverlay);
     settings.setValue(SER_AUDIOCFG, static_cast<int>(audioConfig));
     settings.setValue(SER_HDR, enableHdr);
+    settings.setValue(SER_YUV444, enableYUV444);
     settings.setValue(SER_VIDEOCFG, static_cast<int>(videoCodecConfig));
     settings.setValue(SER_VIDEODEC, static_cast<int>(videoDecoderSelection));
     settings.setValue(SER_WINDOWMODE, static_cast<int>(windowMode));
@@ -337,7 +357,7 @@ void StreamingPreferences::save()
     settings.setValue(SER_KEEPAWAKE, keepAwake);
 }
 
-int StreamingPreferences::getDefaultBitrate(int width, int height, int fps)
+int StreamingPreferences::getDefaultBitrate(int width, int height, int fps, bool yuv444)
 {
     // Don't scale bitrate linearly beyond 60 FPS. It's definitely not a linear
     // bitrate increase for frame rate once we get to values that high.
@@ -385,5 +405,10 @@ int StreamingPreferences::getDefaultBitrate(int width, int height, int fps)
         }
     }
 
+    if (yuv444) {
+        // This is rough estimation based on the fact that 4:4:4 doubles the amount of raw YUV data compared to 4:2:0
+        resolutionFactor *= 2;
+    }
+
     return qRound(resolutionFactor * frameRateFactor) * 1000;
 }

app/settings/streamingpreferences.h

@@ -12,7 +12,7 @@ public:
     static StreamingPreferences* get(QQmlEngine *qmlEngine = nullptr);
 
     Q_INVOKABLE static int
-    getDefaultBitrate(int width, int height, int fps);
+    getDefaultBitrate(int width, int height, int fps, bool yuv444);
 
     Q_INVOKABLE void save();
 
@@ -93,6 +93,10 @@ public:
         LANG_HE,
         LANG_CKB,
         LANG_LT,
+        LANG_ET,
+        LANG_BG,
+        LANG_EO,
+        LANG_TA,
     };
     Q_ENUM(Language);
 
@@ -108,6 +112,8 @@ public:
     Q_PROPERTY(int height MEMBER height NOTIFY displayModeChanged)
     Q_PROPERTY(int fps MEMBER fps NOTIFY displayModeChanged)
     Q_PROPERTY(int bitrateKbps MEMBER bitrateKbps NOTIFY bitrateChanged)
+    Q_PROPERTY(bool unlockBitrate MEMBER unlockBitrate NOTIFY unlockBitrateChanged)
+    Q_PROPERTY(bool autoAdjustBitrate MEMBER autoAdjustBitrate NOTIFY autoAdjustBitrateChanged)
     Q_PROPERTY(bool enableVsync MEMBER enableVsync NOTIFY enableVsyncChanged)
     Q_PROPERTY(bool gameOptimizations MEMBER gameOptimizations NOTIFY gameOptimizationsChanged)
     Q_PROPERTY(bool playAudioOnHost MEMBER playAudioOnHost NOTIFY playAudioOnHostChanged)
@@ -118,6 +124,7 @@ public:
     Q_PROPERTY(bool absoluteTouchMode MEMBER absoluteTouchMode NOTIFY absoluteTouchModeChanged)
     Q_PROPERTY(bool framePacing MEMBER framePacing NOTIFY framePacingChanged)
     Q_PROPERTY(bool connectionWarnings MEMBER connectionWarnings NOTIFY connectionWarningsChanged)
+    Q_PROPERTY(bool configurationWarnings MEMBER configurationWarnings NOTIFY configurationWarningsChanged)
     Q_PROPERTY(bool richPresence MEMBER richPresence NOTIFY richPresenceChanged)
     Q_PROPERTY(bool gamepadMouse MEMBER gamepadMouse NOTIFY gamepadMouseChanged)
     Q_PROPERTY(bool detectNetworkBlocking MEMBER detectNetworkBlocking NOTIFY detectNetworkBlockingChanged)
@@ -125,6 +132,7 @@ public:
     Q_PROPERTY(AudioConfig audioConfig MEMBER audioConfig NOTIFY audioConfigChanged)
     Q_PROPERTY(VideoCodecConfig videoCodecConfig MEMBER videoCodecConfig NOTIFY videoCodecConfigChanged)
     Q_PROPERTY(bool enableHdr MEMBER enableHdr NOTIFY enableHdrChanged)
+    Q_PROPERTY(bool enableYUV444 MEMBER enableYUV444 NOTIFY enableYUV444Changed)
     Q_PROPERTY(VideoDecoderSelection videoDecoderSelection MEMBER videoDecoderSelection NOTIFY videoDecoderSelectionChanged)
     Q_PROPERTY(WindowMode windowMode MEMBER windowMode NOTIFY windowModeChanged)
     Q_PROPERTY(WindowMode recommendedFullScreenMode MEMBER recommendedFullScreenMode CONSTANT)
@@ -145,6 +153,8 @@ public:
     int height;
     int fps;
     int bitrateKbps;
+    bool unlockBitrate;
+    bool autoAdjustBitrate;
     bool enableVsync;
     bool gameOptimizations;
     bool playAudioOnHost;
@@ -155,6 +165,7 @@ public:
     bool absoluteTouchMode;
     bool framePacing;
     bool connectionWarnings;
+    bool configurationWarnings;
     bool richPresence;
     bool gamepadMouse;
     bool detectNetworkBlocking;
@@ -169,6 +180,7 @@ public:
     AudioConfig audioConfig;
     VideoCodecConfig videoCodecConfig;
     bool enableHdr;
+    bool enableYUV444;
     VideoDecoderSelection videoDecoderSelection;
     WindowMode windowMode;
     WindowMode recommendedFullScreenMode;
@@ -179,6 +191,8 @@ public:
 signals:
     void displayModeChanged();
     void bitrateChanged();
+    void unlockBitrateChanged();
+    void autoAdjustBitrateChanged();
     void enableVsyncChanged();
     void gameOptimizationsChanged();
     void playAudioOnHostChanged();
@@ -191,11 +205,13 @@ signals:
     void audioConfigChanged();
     void videoCodecConfigChanged();
     void enableHdrChanged();
+    void enableYUV444Changed();
     void videoDecoderSelectionChanged();
     void uiDisplayModeChanged();
     void windowModeChanged();
     void framePacingChanged();
     void connectionWarningsChanged();
+    void configurationWarningsChanged();
     void richPresenceChanged();
     void gamepadMouseChanged();
     void detectNetworkBlockingChanged();

app/shaders/build_hlsl.bat

@@ -3,4 +3,6 @@ fxc /T vs_4_0_level_9_3 /Fo d3d11_vertex.fxc d3d11_vertex.hlsl
 fxc /T ps_4_0_level_9_3 /Fo d3d11_overlay_pixel.fxc d3d11_overlay_pixel.hlsl
 fxc /T ps_4_0_level_9_3 /Fo d3d11_genyuv_pixel.fxc d3d11_genyuv_pixel.hlsl
 fxc /T ps_4_0_level_9_3 /Fo d3d11_bt601lim_pixel.fxc d3d11_bt601lim_pixel.hlsl
-fxc /T ps_4_0_level_9_3 /Fo d3d11_bt2020lim_pixel.fxc d3d11_bt2020lim_pixel.hlsl
+fxc /T ps_4_0_level_9_3 /Fo d3d11_bt2020lim_pixel.fxc d3d11_bt2020lim_pixel.hlsl
+fxc /T ps_4_0_level_9_3 /Fo d3d11_ayuv_pixel.fxc d3d11_ayuv_pixel.hlsl
+fxc /T ps_4_0_level_9_3 /Fo d3d11_y410_pixel.fxc d3d11_y410_pixel.hlsl

app/shaders/d3d11_ayuv_pixel.hlsl

@@ -0,0 +1,9 @@
+#include "d3d11_yuv444_pixel_start.hlsli"
+
+min16float3 swizzle(min16float3 input)
+{
+    // AYUV SRVs are in VUYA order
+    return input.bgr;
+}
+
+#include "d3d11_yuv444_pixel_end.hlsli"