Version 0.5.0

This reverts commit b8ffb6e53d.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,31 @@
+---
+name: Bug report
+about: Create a report to help us address broken functionality
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**Steps to reproduce**
+Any special steps that are required for the bug to appear.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem. If the issue is related to video glitching or poor quality, please include screenshots.
+
+**Moonlight settings (please complete the following information)**
+- Have any settings been adjusted from defaults?
+- If so, which settings have been changed?
+- Does the problem still occur after reverting settings back to default?
+
+**Client PC details (please complete the following information)**
+ - OS: [e.g. Windows 10 1803]
+ - Moonlight Version: [e.g. v0.2.0]
+
+**Logs (please attach)**
+- On Windows, `Moonlight-###.log` files can be found in `%TEMP%`. Simply type that into the File Explorer path field to navigate there.
+- On macOS, `Moonlight-###.log` files can be found in `/tmp`. In Finder, press Cmd+Shift+G, then type `/tmp` to navigate there.
+- On Linux, logs print to the terminal when running via `flatpak run com.moonlight_stream.Moonlight`
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,17 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/no-response.yml

@@ -0,0 +1,8 @@
+# ProBot No Response (https://probot.github.io/apps/no-response/)
+
+daysUntilClose: 7
+responseRequiredLabel: 'need more info'
+closeComment: >
+  This issue has been automatically closed because there was no response to a
+  request for more information from the issue opener. Please leave a comment or
+  open a new issue if you have additional information related to this issue.

.github/stale.yml

@@ -0,0 +1,14 @@
+# ProBot Stale (https://probot.github.io/apps/stale/)
+
+daysUntilStale: 90
+daysUntilClose: 7
+exemptLabels:
+  - accepted
+  - bug
+  - enhancement
+  - meta
+staleLabel: stale
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  recent activity. It will be closed if no further activity occurs.
+closeComment: false

.gitmodules

@@ -1,9 +1,6 @@
 [submodule "moonlight-common-c/moonlight-common-c"]
 	path = moonlight-common-c/moonlight-common-c
 	url = https://github.com/moonlight-stream/moonlight-common-c.git
-[submodule "opus/opus"]
-	path = opus/opus
-	url = https://github.com/xiph/opus.git
 [submodule "qmdnsengine/qmdnsengine"]
 	path = qmdnsengine/qmdnsengine
 	url = https://github.com/cgutman/qmdnsengine.git

.travis.yml

@@ -0,0 +1,50 @@
+language: cpp
+
+git:
+  depth: 1
+
+matrix:
+  include:
+    - os: osx
+      compiler: clang
+    - os: linux
+      sudo: required
+      dist: xenial
+      compiler: gcc
+      addons:
+        apt:
+          sources:
+            - sourceline: 'ppa:beineri/opt-qt596-xenial'
+            - sourceline: 'ppa:jonathonf/ffmpeg-4'
+          packages:
+            - qt59base
+            - qt59quickcontrols2
+            - qt59svg
+            - qt59multimedia
+            - libesd0-dev
+            - libgl-dev
+            - libegl1-mesa-dev
+            - libxkbcommon-dev
+            - wayland-protocols
+            - libopus-dev
+            - libavcodec-dev
+            - libavutil-dev
+            - libva-dev
+            - libvdpau-dev
+
+install:
+    - '[ "$TRAVIS_OS_NAME" != osx ] || brew install qt5'
+    - '[ "$TRAVIS_OS_NAME" != osx ] || brew link --force qt5'
+    - if [[ "$TRAVIS_OS_NAME" = "linux" ]]; then export SDL2_VER=2.0.8 && wget https://www.libsdl.org/release/SDL2-$SDL2_VER.tar.gz && tar -xvf SDL2-$SDL2_VER.tar.gz && cd SDL2-$SDL2_VER && ./configure && make && sudo make install && cd ..; fi
+
+before_script:
+    - '[ "$TRAVIS_OS_NAME" != "linux" ] || source /opt/qt59/bin/qt59-env.sh'
+    - qmake -v
+    - '[[ "$TRAVIS_OS_NAME" != linux || "$CXX" != clang++ ]] || export QMAKESPEC=linux-clang'
+    - '[[ "$TRAVIS_OS_NAME" != linux || "$CXX" != g++     ]] || export QMAKESPEC=linux-g++'
+    - '[ "$TRAVIS_OS_NAME" != osx ]                          || export QMAKESPEC=macx-clang'
+
+script:
+    - qmake moonlight-qt.pro -spec $QMAKESPEC
+    - make debug
+    - make release

README.md

@@ -1,11 +1,30 @@
 # Moonlight PC
 
-[Moonlight PC](http://moonlight-stream.com) is an open source implementation of NVIDIA's GameStream, as used by the NVIDIA Shield, but built to run on Windows, Mac, and Linux.
+[Moonlight PC](http://moonlight-stream.com) is an open source implementation of NVIDIA's GameStream, as used by the NVIDIA Shield, but built to run on Windows, Mac, and Linux. This client is the successor to [Moonlight Chrome](https://github.com/moonlight-stream/moonlight-chrome) for streaming on PC.
 
 Moonlight also has mobile versions for [Android](https://github.com/moonlight-stream/moonlight-android) and  [iOS](https://github.com/moonlight-stream/moonlight-ios).
 
+See the [releases page](https://github.com/moonlight-stream/moonlight-qt/releases) for download links for Windows and Mac. For Linux, we're on [Flathub](https://flathub.org/apps/details/com.moonlight_stream.Moonlight).
+
+You can follow development on our [Discord server](https://discord.gg/6ERtzFY).
+
+ [![Windows AppVeyor Status](https://ci.appveyor.com/api/projects/status/glj5cxqwy2w3bglv/branch/master?svg=true)](https://ci.appveyor.com/project/cgutman/moonlight-qt/branch/master)
+ [![Mac and Linux Travis CI Status](https://travis-ci.org/moonlight-stream/moonlight-qt.svg?branch=master)](https://travis-ci.org/moonlight-stream/moonlight-qt)
+
+## Features
+ - Hardware accelerated video decoding on Windows, Mac, and Linux
+ - Supports streaming at up to 120 FPS (high refresh rate monitor recommended)
+ - Supports streaming at 720p, 1080p, 1440p, 4K, and the client PC's native screen resolution
+ - 5.1 surround sound audio
+ - HEVC support for better image quality at reduced bandwidth
+ - Keyboard and mouse support
+ - Gamepad support with SDL gamepad mappings
+
 ## Building
-1. Install the latest Qt SDK (and optionally, the Qt Creator IDE) from https://www.qt.io/download (select MSVC toolchain on Windows)
+1. Install the latest Qt SDK (and optionally, the Qt Creator IDE) from https://www.qt.io/download
+    - On Windows, install Visual Studio 2017 and select MSVC 2017 toolchain during Qt installation
+    - On Mac, install the latest version of XCode
+    - On Linux, install your distro equivalents of: `openssl-devel qt5-devel SDL2-devel ffmpeg-devel qt5-qtquickcontrols2-devel libva-devel libvdpau-devel`
 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

@@ -5,22 +5,28 @@
 	<key>CFBundleExecutable</key>
 	<string>Moonlight</string>
 	<key>CFBundleGetInfoString</key>
-	<string>Created by Qt/QMake</string>
+	<string>Stream games from your NVIDIA GameStream-enabled PC</string>
 	<key>CFBundleIconFile</key>
-	<string>macos</string>
+	<string>moonlight</string>
 	<key>CFBundleIdentifier</key>
-	<string>com.yourcompany.moonlight-qt</string>
+	<string>com.moonlight-stream.Moonlight</string>
+	<key>NSHighResolutionCapable</key>
+	<true/>
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>LSMinimumSystemVersion</key>
-	<string>10.10</string>
-	<key>NOTE</key>
-	<string>This file was generated by Qt/QMake.</string>
+	<string>10.11</string>
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
 	<key>NSSupportsAutomaticGraphicsSwitching</key>
 	<true/>
+	<key>CFBundleVersion</key>
+	<string>0.5.0</string>
+	<key>CFBundleShortVersionString</key>
+	<string>0.5.0</string>
+	<key>CFBundleDisplayName</key>
+	<string>Moonlight</string>
 </dict>
 </plist>

app/Moonlight.exe.manifest

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" manifestVersion="1.0">
+    <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+        <security>
+            <requestedPrivileges>
+                <requestedExecutionLevel level="asInvoker" uiAccess="false" />
+            </requestedPrivileges>
+        </security>
+    </trustInfo>
+    <description>Moonlight Game Streaming</description>
+    <asmv3:application>
+        <asmv3:windowsSettings>
+            <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true/pm</dpiAware>
+            <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">permonitor</dpiAwareness>
+        </asmv3:windowsSettings>
+    </asmv3:application>
+    <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+        <application>
+            <!-- Windows 10 -->
+            <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+            <!-- Windows 8.1 -->
+            <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+            <!-- Windows 8 -->
+            <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+            <!-- Windows 7 -->
+            <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+            <!-- Windows Vista -->
+            <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>
+        </application> 
+    </compatibility>
+</assembly>

app/app.pro

@@ -1,4 +1,4 @@
-QT += core quick network quickcontrols2 svg
+QT += core quick network quickcontrols2 svg multimedia
 CONFIG += c++11
 
 unix:!macx {
@@ -8,6 +8,12 @@ unix:!macx {
     TARGET = Moonlight
 }
 
+# Support debug and release builds from command line for CI
+CONFIG += debug_and_release
+
+# Ensure symbols are always generated
+CONFIG += force_debug_info
+
 TEMPLATE = app
 
 # The following define makes your compiler emit warnings if you use
@@ -31,33 +37,42 @@ win32 {
         LIBS += -L$$PWD/../libs/windows/lib/x64
     }
 
-    LIBS += ws2_32.lib winmm.lib dxva2.lib ole32.lib
+    LIBS += ws2_32.lib winmm.lib dxva2.lib ole32.lib gdi32.lib user32.lib d3d9.lib dwmapi.lib dbghelp.lib
 }
 macx {
-    INCLUDEPATH += $$PWD/../libs/mac/include
-    LIBS += -L$$PWD/../libs/mac/lib
+    INCLUDEPATH += $$PWD/../libs/mac/include $$PWD/../libs/mac/Frameworks/SDL2.framework/Versions/A/Headers
+    LIBS += -L$$PWD/../libs/mac/lib -F$$PWD/../libs/mac/Frameworks
 }
 
 unix:!macx {
     CONFIG += link_pkgconfig
-    PKGCONFIG += openssl sdl2
-    LIBS += -ldl
+    PKGCONFIG += openssl sdl2 opus
 
     packagesExist(libavcodec) {
         PKGCONFIG += libavcodec libavutil
         CONFIG += ffmpeg
 
         packagesExist(libva) {
+            packagesExist(libva-x11) {
+                CONFIG += libva-x11
+            }
+            packagesExist(libva-wayland) {
+                CONFIG += libva-wayland
+            }
             CONFIG += libva
         }
+
+        packagesExist(vdpau) {
+            CONFIG += libvdpau
+        }
     }
 }
 win32 {
-    LIBS += -llibssl -llibcrypto -lSDL2 -lavcodec -lavutil
+    LIBS += -llibssl -llibcrypto -lSDL2 -lavcodec -lavutil -lopus
     CONFIG += ffmpeg
 }
 macx {
-    LIBS += -lssl -lcrypto -lSDL2 -lavcodec.58 -lavutil.56
+    LIBS += -lssl -lcrypto -lavcodec.58 -lavutil.56 -lopus -framework SDL2
     LIBS += -lobjc -framework VideoToolbox -framework AVFoundation -framework CoreVideo -framework CoreGraphics -framework CoreMedia -framework AppKit
     CONFIG += ffmpeg
 }
@@ -72,9 +87,14 @@ SOURCES += \
     settings/streamingpreferences.cpp \
     streaming/input.cpp \
     streaming/session.cpp \
-    streaming/audio.cpp \
+    streaming/audio/audio.cpp \
+    streaming/audio/renderers/sdlaud.cpp \
+    streaming/audio/renderers/qtaud.cpp \
     gui/computermodel.cpp \
-    gui/appmodel.cpp
+    gui/appmodel.cpp \
+    streaming/streamutils.cpp \
+    backend/autoupdatechecker.cpp \
+    path.cpp
 
 HEADERS += \
     utils.h \
@@ -86,9 +106,15 @@ HEADERS += \
     settings/streamingpreferences.h \
     streaming/input.hpp \
     streaming/session.hpp \
+    streaming/audio/renderers/renderer.h \
+    streaming/audio/renderers/sdl.h \
+    streaming/audio/renderers/qtaud.h \
     gui/computermodel.h \
     gui/appmodel.h \
-    streaming/video/decoder.h
+    streaming/video/decoder.h \
+    streaming/streamutils.h \
+    backend/autoupdatechecker.h \
+    path.h
 
 # Platform-specific renderers and decoders
 ffmpeg {
@@ -97,18 +123,44 @@ ffmpeg {
     DEFINES += HAVE_FFMPEG
     SOURCES += \
         streaming/video/ffmpeg.cpp \
-        streaming/video/ffmpeg-renderers/sdl.cpp
+        streaming/video/ffmpeg-renderers/sdlvid.cpp \
+        streaming/video/ffmpeg-renderers/pacer/pacer.cpp \
+        streaming/video/ffmpeg-renderers/pacer/nullthreadedvsyncsource.cpp
+
+
     HEADERS += \
         streaming/video/ffmpeg.h \
-        streaming/video/ffmpeg-renderers/renderer.h
+        streaming/video/ffmpeg-renderers/renderer.h \
+        streaming/video/ffmpeg-renderers/pacer/pacer.h \
+        streaming/video/ffmpeg-renderers/pacer/nullthreadedvsyncsource.h
 }
 libva {
     message(VAAPI renderer selected)
 
+    PKGCONFIG += libva
     DEFINES += HAVE_LIBVA
     SOURCES += streaming/video/ffmpeg-renderers/vaapi.cpp
     HEADERS += streaming/video/ffmpeg-renderers/vaapi.h
 }
+libva-x11 {
+    message(VAAPI X11 support enabled)
+
+    PKGCONFIG += libva-x11
+    DEFINES += HAVE_LIBVA_X11
+}
+libva-wayland {
+    message(VAAPI Wayland support enabled)
+
+    PKGCONFIG += libva-wayland
+    DEFINES += HAVE_LIBVA_WAYLAND
+}
+libvdpau {
+    message(VDPAU renderer selected)
+
+    DEFINES += HAVE_LIBVDPAU
+    SOURCES += streaming/video/ffmpeg-renderers/vdpau.cpp
+    HEADERS += streaming/video/ffmpeg-renderers/vdpau.h
+}
 config_SLVideo {
     message(SLVideo decoder/renderer selected)
 
@@ -120,14 +172,24 @@ config_SLVideo {
 win32 {
     message(DXVA2 renderer selected)
 
-    SOURCES += streaming/video/ffmpeg-renderers/dxva2.cpp
-    HEADERS += streaming/video/ffmpeg-renderers/dxva2.h
+    SOURCES += \
+        streaming/video/ffmpeg-renderers/dxva2.cpp \
+        streaming/video/ffmpeg-renderers/pacer/dxvsyncsource.cpp
+
+    HEADERS += \
+        streaming/video/ffmpeg-renderers/dxva2.h \
+        streaming/video/ffmpeg-renderers/pacer/dxvsyncsource.h
 }
 macx {
     message(VideoToolbox renderer selected)
 
-    SOURCES += streaming/video/ffmpeg-renderers/vt.mm
-    HEADERS += streaming/video/ffmpeg-renderers/vt.h
+    SOURCES += \
+        streaming/video/ffmpeg-renderers/vt.mm \
+        streaming/video/ffmpeg-renderers/pacer/displaylinkvsyncsource.mm
+
+    HEADERS += \
+        streaming/video/ffmpeg-renderers/vt.h \
+        streaming/video/ffmpeg-renderers/pacer/displaylinkvsyncsource.h
 }
 
 RESOURCES += \
@@ -147,13 +209,6 @@ else:unix: LIBS += -L$$OUT_PWD/../moonlight-common-c/ -lmoonlight-common-c
 INCLUDEPATH += $$PWD/../moonlight-common-c/moonlight-common-c/src
 DEPENDPATH += $$PWD/../moonlight-common-c/moonlight-common-c/src
 
-win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../opus/release/ -lopus
-else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../opus/debug/ -lopus
-else:unix: LIBS += -L$$OUT_PWD/../opus/ -lopus
-
-INCLUDEPATH += $$PWD/../opus/opus/include
-DEPENDPATH += $$PWD/../opus/opus/include
-
 win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../qmdnsengine/release/ -lqmdnsengine
 else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../qmdnsengine/debug/ -lqmdnsengine
 else:unix: LIBS += -L$$OUT_PWD/../qmdnsengine/ -lqmdnsengine
@@ -168,30 +223,42 @@ unix:!macx: {
     isEmpty(BINDIR) {
         BINDIR = bin
     }
+    isEmpty(DATADIR) {
+        DATADIR = share
+    }
 
     target.path = $$PREFIX/$$BINDIR/
 
     desktop.files = deploy/linux/com.moonlight_stream.Moonlight.desktop
-    desktop.path = $$PREFIX/share/applications/
+    desktop.path = $$PREFIX/$$DATADIR/applications/
 
     icons.files = res/moonlight.svg
-    icons.path = $$PREFIX/share/icons/hicolor/scalable/apps/
+    icons.path = $$PREFIX/$$DATADIR/icons/hicolor/scalable/apps/
 
-    appdata.files = deploy/linux/com.moonlight_stream.Moonlight.appdata.xml
-    appdata.path = $$PREFIX/share/metainfo/
+    appstream.files = deploy/linux/com.moonlight_stream.Moonlight.appdata.xml
+    appstream.path = $$PREFIX/$$DATADIR/metainfo/
 
-    INSTALLS += target desktop icons appdata
+    appdata.files = gamecontrollerdb.txt
+    appdata.path = "$$PREFIX/$$DATADIR/Moonlight Game Streaming Project/Moonlight/"
+
+    INSTALLS += target appdata desktop icons appstream
 }
-
 win32 {
     RC_ICONS = moonlight.ico
-}
+    QMAKE_TARGET_COMPANY = Moonlight Game Streaming Project
+    QMAKE_TARGET_DESCRIPTION = Moonlight Game Streaming Client
+    QMAKE_TARGET_PRODUCT = Moonlight
 
+    CONFIG -= embed_manifest_exe
+    QMAKE_LFLAGS += /MANIFEST:embed /MANIFESTINPUT:$${PWD}/Moonlight.exe.manifest
+}
 macx {
     QMAKE_INFO_PLIST = $$PWD/Info.plist
-    APP_QML_FILES.files = res/macos.icns
-    APP_QML_FILES.path = Contents/Resources
-    QMAKE_BUNDLE_DATA += APP_QML_FILES
+
+    APP_BUNDLE_RESOURCES.files = moonlight.icns gamecontrollerdb.txt
+    APP_BUNDLE_RESOURCES.path = Contents/Resources
+    QMAKE_BUNDLE_DATA += APP_BUNDLE_RESOURCES
 }
 
-VERSION = 0.0.3
+VERSION = 0.5.0
+DEFINES += VERSION_STR=\\\"0.5.0\\\"

app/backend/autoupdatechecker.cpp

@@ -0,0 +1,142 @@
+#include "autoupdatechecker.h"
+
+#include <QNetworkReply>
+#include <QJsonDocument>
+#include <QJsonArray>
+#include <QJsonObject>
+
+AutoUpdateChecker::AutoUpdateChecker(QObject *parent) :
+    QObject(parent),
+    m_Nam(this)
+{
+    // Never communicate over HTTP
+    m_Nam.setStrictTransportSecurityEnabled(true);
+
+    connect(&m_Nam, SIGNAL(finished(QNetworkReply*)),
+            this, SLOT(handleUpdateCheckRequestFinished(QNetworkReply*)));
+
+    QString currentVersion(VERSION_STR);
+    qDebug() << "Current Moonlight version:" << currentVersion;
+    parseStringToVersionQuad(currentVersion, m_CurrentVersionQuad);
+
+    // Should at least have a 1.0-style version number
+    Q_ASSERT(m_CurrentVersionQuad.count() > 1);
+}
+
+void AutoUpdateChecker::start()
+{
+#if defined(Q_OS_WIN32) || defined(Q_OS_DARWIN) // Only run update checker on platforms without auto-update
+    // We'll get a callback when this is finished
+    QUrl url("https://moonlight-stream.com/updates/qt.json");
+    m_Nam.get(QNetworkRequest(url));
+#endif
+}
+
+void AutoUpdateChecker::parseStringToVersionQuad(QString& string, QVector<int>& version)
+{
+    QStringList list = string.split('.');
+    for (const QString& component : list) {
+        version.append(component.toInt());
+    }
+}
+
+void AutoUpdateChecker::handleUpdateCheckRequestFinished(QNetworkReply* reply)
+{
+    Q_ASSERT(reply->isFinished());
+
+    if (reply->error() == QNetworkReply::NoError) {
+        QTextStream stream(reply);
+        stream.setCodec("UTF-8");
+
+        // Read all data and queue the reply for deletion
+        QString jsonString = stream.readAll();
+        reply->deleteLater();
+
+        QJsonParseError error;
+        QJsonDocument jsonDoc = QJsonDocument::fromJson(jsonString.toUtf8(), &error);
+        if (jsonDoc.isNull()) {
+            qWarning() << "Update manifest malformed:" << error.errorString();
+            return;
+        }
+
+        QJsonArray array = jsonDoc.array();
+        if (array.isEmpty()) {
+            qWarning() << "Update manifest doesn't contain an array";
+            return;
+        }
+
+        for (QJsonValueRef updateEntry : array) {
+            if (updateEntry.isObject()) {
+                QJsonObject updateObj = updateEntry.toObject();
+                if (!updateObj.contains("platform") ||
+                        !updateObj.contains("arch") ||
+                        !updateObj.contains("version") ||
+                        !updateObj.contains("browser_url")) {
+                    qWarning() << "Update manifest entry missing vital field";
+                    continue;
+                }
+
+                if (!updateObj["platform"].isString() ||
+                        !updateObj["arch"].isString() ||
+                        !updateObj["version"].isString() ||
+                        !updateObj["browser_url"].isString()) {
+                    qWarning() << "Update manifest entry has unexpected vital field type";
+                    continue;
+                }
+
+                if (updateObj["arch"] == QSysInfo::buildCpuArchitecture() &&
+                        updateObj["platform"] == QSysInfo::productType()) {
+                    qDebug() << "Found update manifest match for current platform";
+
+                    QString latestVersion = updateObj["version"].toString();
+                    qDebug() << "Latest version of Moonlight for this platform is:" << latestVersion;
+
+                    QVector<int> latestVersionQuad;
+
+                    parseStringToVersionQuad(latestVersion, latestVersionQuad);
+
+                    for (int i = 0;; i++) {
+                        int latestVer = 0;
+                        int currentVer = 0;
+
+                        // Treat missing decimal places as 0
+                        if (i < latestVersionQuad.count()) {
+                            latestVer = latestVersionQuad[i];
+                        }
+                        if (i < m_CurrentVersionQuad.count()) {
+                            currentVer = m_CurrentVersionQuad[i];
+                        }
+                        if (i >= latestVersionQuad.count() && i >= m_CurrentVersionQuad.count()) {
+                            break;
+                        }
+
+                        if (currentVer < latestVer) {
+                            qDebug() << "Update available";
+
+                            emit onUpdateAvailable(updateObj["browser_url"].toString());
+                            return;
+                        }
+                        else if (currentVer > latestVer) {
+                            qDebug() << "Update manifest version lower than current version";
+                            return;
+                        }
+                    }
+
+                    qDebug() << "Update manifest version equal to current version";
+
+                    return;
+                }
+            }
+            else {
+                qWarning() << "Update manifest contained unrecognized entry:" << updateEntry.toString();
+            }
+        }
+
+        qWarning() << "No entry in update manifest found for current platform: "
+                   << QSysInfo::buildCpuArchitecture() << QSysInfo::productType();
+    }
+    else {
+        qWarning() << "Update checking failed with error: " << reply->error();
+        reply->deleteLater();
+    }
+}

app/backend/autoupdatechecker.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <QObject>
+#include <QNetworkAccessManager>
+
+class AutoUpdateChecker : public QObject
+{
+    Q_OBJECT
+public:
+    explicit AutoUpdateChecker(QObject *parent = nullptr);
+
+    Q_INVOKABLE void start();
+
+signals:
+    void onUpdateAvailable(QString url);
+
+private slots:
+    void handleUpdateCheckRequestFinished(QNetworkReply* reply);
+
+private:
+    void parseStringToVersionQuad(QString& string, QVector<int>& version);
+
+    QVector<int> m_CurrentVersionQuad;
+    QNetworkAccessManager m_Nam;
+};

app/backend/boxartmanager.cpp

@@ -1,14 +1,19 @@
 #include "boxartmanager.h"
+#include "../path.h"
 
-#include <QStandardPaths>
 #include <QImageReader>
 #include <QImageWriter>
 
 BoxArtManager::BoxArtManager(QObject *parent) :
     QObject(parent),
-    m_BoxArtDir(
-        QStandardPaths::writableLocation(QStandardPaths::CacheLocation) + "/boxart")
+    m_BoxArtDir(Path::getBoxArtCacheDir()),
+    m_ThreadPool(this)
 {
+    // 4 is a good balance between fast loading for large
+    // app grids and not crushing GFE with tons of requests
+    // and causing UI jank from constantly stalling to decode
+    // new images.
+    m_ThreadPool.setMaxThreadCount(4);
     if (!m_BoxArtDir.exists()) {
         m_BoxArtDir.mkpath(".");
     }
@@ -42,7 +47,7 @@ QUrl BoxArtManager::loadBoxArt(NvComputer* computer, NvApp& app)
     // If we get here, we need to fetch asynchronously.
     // Kick off a worker on our thread pool to do just that.
     NetworkBoxArtLoadTask* netLoadTask = new NetworkBoxArtLoadTask(this, computer, app);
-    QThreadPool::globalInstance()->start(netLoadTask);
+    m_ThreadPool.start(netLoadTask);
 
     // Return the placeholder then we can notify the caller
     // later when the real image is ready.

app/backend/boxartmanager.h

@@ -36,6 +36,7 @@ private:
     getFilePathForBoxArt(NvComputer* computer, int appId);
 
     QDir m_BoxArtDir;
+    QThreadPool m_ThreadPool;
 };
 
 class NetworkBoxArtLoadTask : public QObject, public QRunnable

app/backend/computermanager.cpp

@@ -1,5 +1,6 @@
 #include "computermanager.h"
 #include "nvhttp.h"
+#include "settings/streamingpreferences.h"
 
 #include <QThread>
 #include <QUdpSocket>
@@ -51,6 +52,8 @@ NvComputer::NvComputer(QSettings& settings)
     this->appVersion = nullptr;
     this->maxLumaPixelsHEVC = 0;
     this->serverCodecModeSupport = 0;
+    this->pendingQuit = false;
+    this->gpuModel = nullptr;
 }
 
 void
@@ -90,7 +93,7 @@ void NvComputer::sortAppList()
 NvComputer::NvComputer(QString address, QString serverInfo)
 {
     this->name = NvHTTP::getXmlString(serverInfo, "hostname");
-    if (this->name.isNull()) {
+    if (this->name.isEmpty()) {
         this->name = "UNKNOWN";
     }
 
@@ -104,7 +107,7 @@ NvComputer::NvComputer(QString address, QString serverInfo)
     }
 
     QString codecSupport = NvHTTP::getXmlString(serverInfo, "ServerCodecModeSupport");
-    if (!codecSupport.isNull()) {
+    if (!codecSupport.isEmpty()) {
         this->serverCodecModeSupport = codecSupport.toInt();
     }
     else {
@@ -112,7 +115,7 @@ NvComputer::NvComputer(QString address, QString serverInfo)
     }
 
     QString maxLumaPixelsHEVC = NvHTTP::getXmlString(serverInfo, "MaxLumaPixelsHEVC");
-    if (!maxLumaPixelsHEVC.isNull()) {
+    if (!maxLumaPixelsHEVC.isEmpty()) {
         this->maxLumaPixelsHEVC = maxLumaPixelsHEVC.toInt();
     }
     else {
@@ -133,8 +136,10 @@ NvComputer::NvComputer(QString address, QString serverInfo)
     this->currentGameId = NvHTTP::getCurrentGame(serverInfo);
     this->appVersion = NvHTTP::getXmlString(serverInfo, "appversion");
     this->gfeVersion = NvHTTP::getXmlString(serverInfo, "GfeVersion");
+    this->gpuModel = NvHTTP::getXmlString(serverInfo, "gputype");
     this->activeAddress = address;
     this->state = NvComputer::CS_ONLINE;
+    this->pendingQuit = false;
 }
 
 bool NvComputer::wake()
@@ -144,7 +149,7 @@ bool NvComputer::wake()
         return true;
     }
 
-    if (macAddress.isNull()) {
+    if (macAddress.isEmpty()) {
         qWarning() << name << "has no MAC address stored";
         return false;
     }
@@ -173,6 +178,11 @@ bool NvComputer::wake()
     for (QString& addressString : addressList) {
         QHostInfo hostInfo = QHostInfo::fromName(addressString);
 
+        if (hostInfo.error() != QHostInfo::NoError) {
+            qWarning() << "Error resolving" << addressString << ":" << hostInfo.errorString();
+            continue;
+        }
+
         // Try all IP addresses that this string resolves to
         for (QHostAddress& address : hostInfo.addresses()) {
             QUdpSocket sock;
@@ -207,7 +217,7 @@ QVector<QString> NvComputer::uniqueAddresses()
 
     // Prune duplicates (always giving precedence to the first)
     for (int i = 0; i < uniqueAddressList.count(); i++) {
-        if (uniqueAddressList[i].isEmpty() || uniqueAddressList[i].isNull()) {
+        if (uniqueAddressList[i].isEmpty()) {
             uniqueAddressList.remove(i);
             i--;
             continue;
@@ -264,6 +274,7 @@ bool NvComputer::update(NvComputer& that)
     ASSIGN_IF_CHANGED(gfeVersion);
     ASSIGN_IF_CHANGED(appVersion);
     ASSIGN_IF_CHANGED(maxLumaPixelsHEVC);
+    ASSIGN_IF_CHANGED(gpuModel);
     ASSIGN_IF_CHANGED_AND_NONEMPTY(appList);
     ASSIGN_IF_CHANGED_AND_NONEMPTY(displayModes);
     return changed;
@@ -358,17 +369,24 @@ void ComputerManager::startPolling()
         return;
     }
 
-    // Start an MDNS query for GameStream hosts
-    m_MdnsBrowser = new QMdnsEngine::Browser(&m_MdnsServer, "_nvstream._tcp.local.", &m_MdnsCache);
-    connect(m_MdnsBrowser, &QMdnsEngine::Browser::serviceAdded,
-            this, [this](const QMdnsEngine::Service& service) {
-        qInfo() << "Discovered mDNS host:" << service.hostname();
+    StreamingPreferences prefs;
 
-        MdnsPendingComputer* pendingComputer = new MdnsPendingComputer(&m_MdnsServer, &m_MdnsCache, service);
-        connect(pendingComputer, SIGNAL(resolvedv4(MdnsPendingComputer*,QHostAddress)),
-                this, SLOT(handleMdnsServiceResolved(MdnsPendingComputer*,QHostAddress)));
-        m_PendingResolution.append(pendingComputer);
-    });
+    if (prefs.enableMdns) {
+        // Start an MDNS query for GameStream hosts
+        m_MdnsBrowser = new QMdnsEngine::Browser(&m_MdnsServer, "_nvstream._tcp.local.", &m_MdnsCache);
+        connect(m_MdnsBrowser, &QMdnsEngine::Browser::serviceAdded,
+                this, [this](const QMdnsEngine::Service& service) {
+            qInfo() << "Discovered mDNS host:" << service.hostname();
+
+            MdnsPendingComputer* pendingComputer = new MdnsPendingComputer(&m_MdnsServer, &m_MdnsCache, service);
+            connect(pendingComputer, SIGNAL(resolvedv4(MdnsPendingComputer*,QHostAddress)),
+                    this, SLOT(handleMdnsServiceResolved(MdnsPendingComputer*,QHostAddress)));
+            m_PendingResolution.append(pendingComputer);
+        });
+    }
+    else {
+        qWarning() << "mDNS is disabled by user preference";
+    }
 
     // Start polling threads for each known host
     QMapIterator<QString, NvComputer*> i(m_KnownHosts);
@@ -446,6 +464,15 @@ void ComputerManager::pairHost(NvComputer* computer, QString pin)
     QThreadPool::globalInstance()->start(pairing);
 }
 
+void ComputerManager::quitRunningApp(NvComputer* computer)
+{
+    QWriteLocker lock(&computer->lock);
+    computer->pendingQuit = true;
+
+    PendingQuitTask* quit = new PendingQuitTask(this, computer);
+    QThreadPool::globalInstance()->start(quit);
+}
+
 void ComputerManager::stopPollingAsync()
 {
     QWriteLocker lock(&m_Lock);
@@ -497,6 +524,11 @@ ComputerManager::handleComputerStateChanged(NvComputer* computer)
 {
     emit computerStateChanged(computer);
 
+    if (computer->pendingQuit && computer->currentGameId == 0) {
+        computer->pendingQuit = false;
+        emit quitAppCompleted(QVariant());
+    }
+
     // Save updated hosts to QSettings
     saveHosts();
 }

app/backend/computermanager.h

@@ -16,10 +16,14 @@
 class NvComputer
 {
     friend class PcMonitorThread;
+    friend class ComputerManager;
+    friend class PendingQuitTask;
 
 private:
     void sortAppList();
 
+    bool pendingQuit;
+
 public:
     explicit NvComputer(QString address, QString serverInfo);
 
@@ -61,6 +65,7 @@ public:
     QVector<NvDisplayMode> displayModes;
     int maxLumaPixelsHEVC;
     int serverCodecModeSupport;
+    QString gpuModel;
 
     // Persisted traits
     QString localAddress;
@@ -98,7 +103,7 @@ private:
 
         QString serverInfo;
         try {
-            serverInfo = http.getServerInfo();
+            serverInfo = http.getServerInfo(NvHTTP::NvLogLevel::NONE);
         } catch (...) {
             return false;
         }
@@ -148,31 +153,31 @@ private:
         int pollsSinceLastAppListFetch = POLLS_PER_APPLIST_FETCH;
         while (!isInterruptionRequested()) {
             bool stateChanged = false;
-            for (int i = 0; i < TRIES_BEFORE_OFFLINING; i++) {
+            bool online = false;
+            bool wasOnline = m_Computer->state == NvComputer::CS_ONLINE;
+            for (int i = 0; i < TRIES_BEFORE_OFFLINING && !online; i++) {
                 for (auto& address : m_Computer->uniqueAddresses()) {
                     if (isInterruptionRequested()) {
                         return;
                     }
 
                     if (tryPollComputer(address, stateChanged)) {
+                        if (!wasOnline) {
+                            qInfo() << m_Computer->name << "is now online at" << m_Computer->activeAddress;
+                        }
+                        online = true;
                         break;
                     }
                 }
-
-                // No need to continue retrying if we're online
-                if (m_Computer->state == NvComputer::CS_ONLINE) {
-                    break;
-                }
             }
 
             // Check if we failed after all retry attempts
             // Note: we don't need to acquire the read lock here,
             // because we're on the writing thread.
-            if (m_Computer->state != NvComputer::CS_ONLINE) {
-                if (m_Computer->state != NvComputer::CS_OFFLINE) {
-                    m_Computer->state = NvComputer::CS_OFFLINE;
-                    stateChanged = true;
-                }
+            if (!online && m_Computer->state != NvComputer::CS_OFFLINE) {
+                qInfo() << m_Computer->name << "is now offline";
+                m_Computer->state = NvComputer::CS_OFFLINE;
+                stateChanged = true;
             }
 
             // Grab the applist if it's empty or it's been long enough that we need to refresh
@@ -180,6 +185,13 @@ private:
             if (m_Computer->state == NvComputer::CS_ONLINE &&
                     m_Computer->pairState == NvComputer::PS_PAIRED &&
                     (m_Computer->appList.isEmpty() || pollsSinceLastAppListFetch >= POLLS_PER_APPLIST_FETCH)) {
+                // Notify prior to the app list poll since it may take a while, and we don't
+                // want to delay onlining of a machine, especially if we already have a cached list.
+                if (stateChanged) {
+                    emit computerStateChanged(m_Computer);
+                    stateChanged = false;
+                }
+
                 if (updateAppList(stateChanged)) {
                     pollsSinceLastAppListFetch = 0;
                 }
@@ -259,6 +271,8 @@ public:
 
     void pairHost(NvComputer* computer, QString pin);
 
+    void quitRunningApp(NvComputer* computer);
+
     QVector<NvComputer*> getComputers();
 
     // computer is deleted inside this call
@@ -271,6 +285,8 @@ signals:
 
     void computerAddCompleted(QVariant success);
 
+    void quitAppCompleted(QVariant error);
+
 private slots:
     void handleComputerStateChanged(NvComputer* computer);
 
@@ -338,6 +354,49 @@ private:
     QString m_Pin;
 };
 
+class PendingQuitTask : public QObject, public QRunnable
+{
+    Q_OBJECT
+
+public:
+    PendingQuitTask(ComputerManager* computerManager, NvComputer* computer)
+        : m_Computer(computer)
+    {
+        connect(this, &PendingQuitTask::quitAppFailed,
+                computerManager, &ComputerManager::quitAppCompleted);
+    }
+
+signals:
+    void quitAppFailed(QString error);
+
+private:
+    void run()
+    {
+        NvHTTP http(m_Computer->activeAddress);
+
+        try {
+            if (m_Computer->currentGameId != 0) {
+                http.quitApp();
+            }
+        } catch (const GfeHttpResponseException& e) {
+            {
+                QWriteLocker lock(&m_Computer->lock);
+                m_Computer->pendingQuit = false;
+            }
+            if (e.getStatusCode() == 599) {
+                // 599 is a special code we make a custom message for
+                emit quitAppFailed("The running game wasn't started by this PC. "
+                                   "You must quit the game on the host PC manually or use the device that originally started the game.");
+            }
+            else {
+                emit quitAppFailed(e.toQString());
+            }
+        }
+    }
+
+    NvComputer* m_Computer;
+};
+
 class PendingAddTask : public QObject, public QRunnable
 {
     Q_OBJECT
@@ -364,9 +423,11 @@ private:
     {
         NvHTTP http(m_Address);
 
+        qInfo() << "Processing new PC at" << m_Address << "from" << (m_Mdns ? "mDNS" : "user");
+
         QString serverInfo;
         try {
-            serverInfo = http.getServerInfo();
+            serverInfo = http.getServerInfo(NvHTTP::NvLogLevel::VERBOSE);
         } catch (...) {
             if (!m_Mdns) {
                 emit computerAddCompleted(false);
@@ -402,6 +463,7 @@ private:
 
             // Tell our client if something changed
             if (changed) {
+                qInfo() << existingComputer->name << "is now at" << existingComputer->activeAddress;
                 emit computerStateChanged(existingComputer);
             }
         }

app/backend/identitymanager.cpp

@@ -185,12 +185,12 @@ IdentityManager::getSslConfig()
 QString
 IdentityManager::getUniqueId()
 {
-    if (m_CachedUniqueId.isNull()) {
+    if (m_CachedUniqueId.isEmpty()) {
         QSettings settings;
 
         // Load the unique ID from settings
         m_CachedUniqueId = settings.value(SER_UNIQUEID).toString();
-        if (!m_CachedUniqueId.isEmpty() && !m_CachedUniqueId.isNull()) {
+        if (!m_CachedUniqueId.isEmpty()) {
             qInfo() << "Loaded unique ID from settings:" << m_CachedUniqueId;
         }
         else {

app/backend/nvhttp.cpp

@@ -16,6 +16,8 @@
 NvHTTP::NvHTTP(QString address) :
     m_Address(address)
 {
+    Q_ASSERT(!address.isEmpty());
+
     m_BaseUrlHttp.setScheme("http");
     m_BaseUrlHttps.setScheme("https");
     m_BaseUrlHttp.setHost(address);
@@ -27,9 +29,15 @@ NvHTTP::NvHTTP(QString address) :
 QVector<int>
 NvHTTP::parseQuad(QString quad)
 {
-    QStringList parts = quad.split(".");
     QVector<int> ret;
 
+    // Return an empty vector for old GFE versions
+    // that were missing GfeVersion.
+    if (quad.isEmpty()) {
+        return ret;
+    }
+
+    QStringList parts = quad.split(".");
     for (int i = 0; i < 4; i++)
     {
         ret.append(parts.at(i).toInt());
@@ -56,7 +64,7 @@ NvHTTP::getCurrentGame(QString serverInfo)
 }
 
 QString
-NvHTTP::getServerInfo()
+NvHTTP::getServerInfo(NvLogLevel logLevel)
 {
     QString serverInfo;
 
@@ -67,7 +75,8 @@ NvHTTP::getServerInfo()
         serverInfo = openConnectionToString(m_BaseUrlHttps,
                                             "serverinfo",
                                             nullptr,
-                                            true);
+                                            true,
+                                            logLevel);
         // Throws if the request failed
         verifyResponseStatus(serverInfo);
     }
@@ -79,7 +88,8 @@ NvHTTP::getServerInfo()
             serverInfo = openConnectionToString(m_BaseUrlHttp,
                                                 "serverinfo",
                                                 nullptr,
-                                                true);
+                                                true,
+                                                logLevel);
             verifyResponseStatus(serverInfo);
         }
         else
@@ -185,7 +195,7 @@ NvHTTP::quitApp()
 
     // Newer GFE versions will just return success even if quitting fails
     // if we're not the original requestor.
-    if (getCurrentGame(getServerInfo()) != 0) {
+    if (getCurrentGame(getServerInfo(NvHTTP::ERROR)) != 0) {
         // Generate a synthetic GfeResponseException letting the caller know
         // that they can't kill someone else's stream.
         throw GfeHttpResponseException(599, "");
@@ -225,7 +235,8 @@ NvHTTP::getAppList()
     QString appxml = openConnectionToString(m_BaseUrlHttps,
                                             "applist",
                                             nullptr,
-                                            true);
+                                            true,
+                                            NvLogLevel::ERROR);
     verifyResponseStatus(appxml);
 
     QXmlStreamReader xmlReader(appxml);
@@ -292,7 +303,8 @@ NvHTTP::getBoxArt(int appId)
                                           "appasset",
                                           "appid="+QString::number(appId)+
                                           "&AssetType=2&AssetIdx=0",
-                                          true);
+                                          true,
+                                          NvLogLevel::VERBOSE);
     QImage image = QImageReader(reply).read();
     delete reply;
 
@@ -338,9 +350,10 @@ QString
 NvHTTP::openConnectionToString(QUrl baseUrl,
                                QString command,
                                QString arguments,
-                               bool enableTimeout)
+                               bool enableTimeout,
+                               NvLogLevel logLevel)
 {
-    QNetworkReply* reply = openConnection(baseUrl, command, arguments, enableTimeout);
+    QNetworkReply* reply = openConnection(baseUrl, command, arguments, enableTimeout, logLevel);
     QString ret;
 
     QTextStream stream(reply);
@@ -355,7 +368,8 @@ QNetworkReply*
 NvHTTP::openConnection(QUrl baseUrl,
                        QString command,
                        QString arguments,
-                       bool enableTimeout)
+                       bool enableTimeout,
+                       NvLogLevel logLevel)
 {
     // Build a URL for the request
     QUrl url(baseUrl);
@@ -381,13 +395,17 @@ NvHTTP::openConnection(QUrl baseUrl,
     {
         QTimer::singleShot(REQUEST_TIMEOUT_MS, &loop, SLOT(quit()));
     }
-    qInfo() << "Executing request:" << url.toString();
+    if (logLevel >= NvLogLevel::VERBOSE) {
+        qInfo() << "Executing request:" << url.toString();
+    }
     loop.exec(QEventLoop::ExcludeUserInputEvents);
 
     // Abort the request if it timed out
     if (!reply->isFinished())
     {
-        qWarning() << "Aborting timed out request for" << url.toString();
+        if (logLevel >= NvLogLevel::ERROR) {
+            qWarning() << "Aborting timed out request for" << url.toString();
+        }
         reply->abort();
     }
 
@@ -398,7 +416,9 @@ NvHTTP::openConnection(QUrl baseUrl,
     // Handle error
     if (reply->error() != QNetworkReply::NoError)
     {
-        qWarning() << command << " request failed with error " << reply->error();
+        if (logLevel >= NvLogLevel::ERROR) {
+            qWarning() << command << " request failed with error " << reply->error();
+        }
         GfeHttpResponseException exception(reply->error(), reply->errorString());
         delete reply;
         throw exception;

app/backend/nvhttp.h

@@ -17,7 +17,7 @@ public:
 
     bool isInitialized()
     {
-        return id != 0 && !name.isNull();
+        return id != 0 && !name.isEmpty();
     }
 
     int id;
@@ -80,6 +80,12 @@ private:
 class NvHTTP
 {
 public:
+    enum NvLogLevel {
+        NONE,
+        ERROR,
+        VERBOSE
+    };
+
     explicit NvHTTP(QString address);
 
     static
@@ -87,7 +93,7 @@ public:
     getCurrentGame(QString serverInfo);
 
     QString
-    getServerInfo();
+    getServerInfo(NvLogLevel logLevel);
 
     static
     void
@@ -107,7 +113,8 @@ public:
     openConnectionToString(QUrl baseUrl,
                            QString command,
                            QString arguments,
-                           bool enableTimeout);
+                           bool enableTimeout,
+                           NvLogLevel logLevel = NvLogLevel::VERBOSE);
 
     static
     QVector<int>
@@ -143,7 +150,8 @@ private:
     openConnection(QUrl baseUrl,
                    QString command,
                    QString arguments,
-                   bool enableTimeout);
+                   bool enableTimeout,
+                   NvLogLevel logLevel);
 
     QString m_Address;
     QNetworkAccessManager m_Nam;

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

@@ -1,20 +1,136 @@
- <?xml version="1.0" encoding="UTF-8"?>
- <component type="desktop">
-	<id>com.moonlight_stream.Moonlight.desktop</id>
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+	<id>com.moonlight_stream.Moonlight</id>
 	<metadata_license>CC0-1.0</metadata_license>
 	<project_license>GPL-3.0+</project_license>
 	<name>Moonlight</name>
 	<summary>Stream games from your NVIDIA GameStream-enabled PC</summary>
 
 	<description>
-		<p>Moonlight can stream games or other applications from a PC with an NVIDIA GeForce GTX 600-series or higher GPU and GeForce Experience installed.</p>
-		<p>GameStream utilizes the NVENC hardware encoder present on NVIDIA GPUs for low-latency streaming at up 4K 60 FPS. Moonlight can utilize VAAPI hardware acceleration for high-performance H.264 and HEVC video decoding with low CPU usage.</p>
+		<p>Moonlight can stream games and other applications from a PC with an NVIDIA GeForce GTX 600-series or higher GPU and GeForce Experience installed.</p>
+		<p>Features include:</p>
+		<ul>
+			<li>Streaming at up to 4K resolution</li>
+			<li>Support for up to 120 FPS streaming (high refresh rate monitor recommended)</li>
+			<li>Hardware accelerated video decoding with VAAPI and VDPAU support</li>
+			<li>5.1 surround sound audio support</li>
+			<li>HEVC support for better video compression efficiency</li>
+			<li>Gamepad support with SDL mapping compatibility</li>
+		</ul>
 	</description>
 
 	<url type="homepage">https://moonlight-stream.com</url>
 	<url type="bugtracker">https://github.com/moonlight-stream/moonlight-qt/issues</url>
 	<url type="help">https://github.com/moonlight-stream/moonlight-docs/wiki/Setup-Guide</url>
 
+	<screenshots>
+		<screenshot type="default">
+			<image>https://moonlight-stream.com/appstream_resources/moonlight_screenshot_1.png</image>
+		</screenshot>
+		<screenshot>
+			<image>https://moonlight-stream.com/appstream_resources/moonlight_screenshot_2.png</image>
+		</screenshot>
+	</screenshots>
+
+	<releases>
+		<release version="0.5.0" date="2018-09-15">
+			<description>
+				<p>New features:</p>
+				<ul>
+					<li>Added option to enable mouse acceleration for remote desktop usage</li>
+					<li>Added option to disable automatic PC discovery</li>
+					<li>Added gamepad mappings from gabomdq's SDL_GameControllerDB</li>
+					<li>Added help links to error dialogs</li>
+					<li>Added quit shortcut tip to stream loading page</li>
+					<li>Restored the autodetect audio configuration option</li>
+				</ul>
+				<p>Bugfixes:</p>
+				<ul>
+					<li>Fixed quit app dialog starting the wrong app</li>
+					<li>Fixed very high input lag on GFE 3.14.0 and earlier</li>
+					<li>Fixed sending errant mouse click when capturing the mouse</li>
+				</ul>
+			</description>
+		</release>
+		<release version="0.4.0" date="2018-09-08">
+			<description>
+				<p>New features:</p>
+				<ul>
+					<li>Added option to enable (unsupported) 90/120 FPS streaming on 60 Hz monitors</li>
+					<li>Added refresh rate matching for better frame pacing on high refresh rate monitors</li>
+					<li>The streaming window now appears on the same monitor the UI was displayed on</li>
+					<li>The streaming window is now centered on the target monitor</li>
+					<li>Display a dialog when the connection is terminated by the remote PC</li>
+					<li>Added option to select between full-screen exclusive and borderless windowed mode</li>
+				</ul>
+				<p>Bugfixes:</p>
+				<ul>
+					<li>Fixed streaming with no audio device</li>
+					<li>Fixed mouse lag with some high polling rate mice</li>
+					<li>Improved UI performance on the app grid page</li>
+					<li>1440p and 4K 120 FPS performance is improved to avoid encoder bottlenecks</li>
+					<li>Autodetect audio configuration option removed because it was broken</li>
+				</ul>
+			</description>
+		</release>
+		<release version="0.3.0" date="2018-08-21">
+			<description>
+				<p>Bugfixes:</p>
+				<ul>
+					<li>Reduced power consumption when the app is minimized</li>
+					<li>Fixed malformed asset requests being sent when the first host in the grid is offline</li>
+				</ul>
+			</description>
+		</release>
+		<release version="0.2.0" date="2018-08-12">
+			<description>
+				<p>Bugfixes:</p>
+				<ul>
+					<li>Fixed functionality of '=', 'Numpad Dot', and 'Numpad Enter' keys</li>
+					<li>Fixed uninitialized variable causing strange gamepad behavior</li>
+					<li>Added a warning for incompatible configs and decoder failures</li>
+					<li>Added a warning for Wayland performance issues</li>
+					<li>Stopped capturing the mouse by default for windowed streams</li>
+				</ul>
+			</description>
+		</release>
+		<release version="0.1.0" date="2018-08-05">
+			<description>
+				<p>New features:</p>
+				<ul>
+					<li>Allow streaming at the client's native resolution</li>
+					<li>VDPAU hardware decoding support for NVIDIA GPUs</li>
+					<li>Updated UI to replace status text with icons</li>
+					<li>Stream window is now resizable</li>
+					<li>Display warnings during game launch for configuration issues</li>
+				</ul>
+				<p>Bugfixes:</p>
+				<ul>
+					<li>Gamepad input now works even if the app doesn't have focus</li>
+					<li>Fixed streaming black screen if the host supported HEVC but the client didn't</li>
+					<li>Fixed broken video scaling causing extra stretching and off-center video</li>
+					<li>Fixed gamepad input issue causing some Y axis inputs to be reversed</li>
+				</ul>
+			</description>
+		</release>
+		<release version="0.0.5" date="2018-08-01">
+			<description>
+				<p>Changes from 0.0.4:</p>
+				<ul>
+					<li>Fixed a bug causing increased frame drops and input lag</li>
+					<li>Added support for quitting running games</li>
+					<li>Added support for waking sleeping PCs with Wake-on-LAN</li>
+					<li>Increased the FPS limit to 120 FPS</li>
+				</ul>
+			</description>
+		</release>
+		<release version="0.0.4a" date="2018-07-30">
+			<description>
+				<p>Initial pre-alpha release for Linux. Please file bugs!</p>
+			</description>
+		</release>
+	</releases>
+
 	<categories>
 		<category>Game</category>
 		<category>Qt</category>
@@ -29,33 +145,5 @@
 		<binary>moonlight</binary>
 	</provides>
 
-	<content_rating type="oars-1.1">
-		<content_attribute id="violence-cartoon">none</content_attribute>
-		<content_attribute id="violence-fantasy">none</content_attribute>
-		<content_attribute id="violence-realistic">none</content_attribute>
-		<content_attribute id="violence-bloodshed">none</content_attribute>
-		<content_attribute id="violence-sexual">none</content_attribute>
-		<content_attribute id="violence-desecration">none</content_attribute>
-		<content_attribute id="violence-slavery">none</content_attribute>
-		<content_attribute id="violence-worship">none</content_attribute>
-		<content_attribute id="drugs-alcohol">none</content_attribute>
-		<content_attribute id="drugs-narcotics">none</content_attribute>
-		<content_attribute id="drugs-tobacco">none</content_attribute>
-		<content_attribute id="sex-nudity">none</content_attribute>
-		<content_attribute id="sex-themes">none</content_attribute>
-		<content_attribute id="sex-homosexuality">none</content_attribute>
-		<content_attribute id="sex-prostitution">none</content_attribute>
-		<content_attribute id="sex-adultery">none</content_attribute>
-		<content_attribute id="sex-appearance">none</content_attribute>
-		<content_attribute id="language-profanity">none</content_attribute>
-		<content_attribute id="language-humor">none</content_attribute>
-		<content_attribute id="language-discrimination">none</content_attribute>
-		<content_attribute id="social-chat">none</content_attribute>
-		<content_attribute id="social-info">moderate</content_attribute>
-		<content_attribute id="social-audio">none</content_attribute>
-		<content_attribute id="social-location">none</content_attribute>
-		<content_attribute id="social-contacts">none</content_attribute>
-		<content_attribute id="money-purchasing">none</content_attribute>
-		<content_attribute id="money-gambling">none</content_attribute>
-	</content_rating>
+	<content_rating type="oars-1.0" />
 </component>

app/gamecontrollerdb.txt

@@ -0,0 +1,438 @@
+# Game Controller DB for SDL in 2.0.6 format
+# Source: https://github.com/gabomdq/SDL_GameControllerDB
+
+# Windows
+03000000fa2d00000100000000000000,3DRUDDER,leftx:a0,lefty:a1,rightx:a5,righty:a2,platform:Windows,
+03000000022000000090000000000000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,
+03000000203800000900000000000000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,
+03000000c82d00000060000000000000,8Bitdo SF30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,
+03000000c82d00000061000000000000,8Bitdo SF30 Pro Wireless,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,
+03000000102800000900000000000000,8Bitdo SFC30 GamePad,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Windows,
+03000000a00500003232000000000000,8Bitdo Zero GamePad,a:b0,b:b1,back:b10,dpdown:+a2,dpleft:-a0,dpright:+a0,dpup:-a2,leftshoulder:b6,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Windows,
+030000008f0e00001200000000000000,Acme,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b2,y:b3,platform:Windows,
+03000000341a00003608000000000000,Afterglow PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000c01100001352000000000000,Battalife Joystick,a:b6,b:b7,back:b2,leftshoulder:b0,leftx:a0,lefty:a1,rightshoulder:b1,start:b3,x:b4,y:b5,platform:Windows,
+030000006b1400000055000000000000,bigben ps3padstreetnew,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,
+0300000066f700000500000000000000,BrutalLegendTest,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b3,platform:Windows,
+03000000d81d00000b00000000000000,BUFFALO BSGP1601 Series ,a:b5,b:b3,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b8,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b9,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b13,x:b4,y:b2,platform:Windows,
+03000000e82000006058000000000000,Cideko AK08b,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,
+030000005e0400008e02000000000000,Controller (XBOX 360 For Windows),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a2,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,
+03000000260900008888000000000000,Cyber Gadget GameCube Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:a4,rightx:a2,righty:a3~,start:b7,x:b2,y:b3,platform:Windows,
+03000000a306000022f6000000000000,Cyborg V.3 Rumble Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:+a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:-a3,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Windows,
+03000000791d00000103000000000000,Dual Box WII,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,
+030000004f04000023b3000000000000,Dual Trigger 3-in-1,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+03000000341a00000108000000000000,EXEQ RF USB Gamepad 8206,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,
+030000000d0f00008500000000000000,Fighting Commander 2016 PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00008400000000000000,Fighting Commander 5,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00008700000000000000,Fighting Stick mini 4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00008800000000000000,Fighting Stick mini 4,a:b1,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b8,x:b0,y:b3,platform:Windows,
+030000000d0f00002700000000000000,FIGHTING STICK V3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,
+78696e70757403000000000000000000,Fightstick TES,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,lefttrigger:a2,rightshoulder:b5,righttrigger:a5,start:b7,x:b2,y:b3,platform:Windows,
+03000000790000000600000000000000,G-Shark GS-GP702,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b3,y:b0,platform:Windows,
+03000000260900002625000000000000,Gamecube Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b6,lefttrigger:a4,leftx:a0,lefty:a1,righttrigger:a5,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Windows,
+030000008f0e00000d31000000000000,GAMEPAD 3 TURBO,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000280400000140000000000000,GamePad Pro USB,a:b1,b:b2,back:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,
+03000000ffff00000000000000000000,GameStop Gamepad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,
+03000000451300000010000000000000,Generic USB Joystick,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,
+03000000341a00000302000000000000,Hama Scorpad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00004900000000000000,Hatsune Miku Sho Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000d81400000862000000000000,HitBox Edition Cthulhu+,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b5,lefttrigger:b4,rightshoulder:b7,righttrigger:b6,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00005f00000000000000,Hori Fighting Commander 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00005e00000000000000,Hori Fighting Commander 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00004000000000000000,Hori Fighting Stick Mini 3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b5,lefttrigger:b4,rightshoulder:b7,righttrigger:b6,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00006e00000000000000,HORIPAD 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00006600000000000000,HORIPAD 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f0000ee00000000000000,HORIPAD mini4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00004d00000000000000,HORIPAD3 A,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000250900000017000000000000,HRAP2 on PS/SS/N64 Joypad to USB BOX,a:b2,b:b1,back:b9,leftshoulder:b5,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b6,start:b8,x:b3,y:b0,platform:Windows,
+030000008f0e00001330000000000000,HuiJia SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b9,x:b3,y:b0,platform:Windows,
+03000000d81d00000f00000000000000,iBUFFALO BSGP1204 Series,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,
+03000000d81d00001000000000000000,iBUFFALO BSGP1204P Series,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,
+03000000830500006020000000000000,iBuffalo SNES Controller,a:b1,b:b0,back:b6,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b7,x:b3,y:b2,platform:Windows,
+03000000b50700001403000000000000,IMPACT BLACK,a:b2,b:b3,back:b8,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Windows,
+030000006f0e00002401000000000000,INJUSTICE FightStick for PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,
+03000000491900000204000000000000,Ipega PG-9023,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,
+030000006d04000011c2000000000000,Logitech Cordless Wingman,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b9,leftstick:b5,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b10,rightstick:b2,righttrigger:b7,rightx:a3,righty:a4,x:b4,platform:Windows,
+030000006d04000016c2000000000000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+030000006d04000018c2000000000000,Logitech F510 Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+030000006d04000019c2000000000000,Logitech F710 Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000380700005032000000000000,Mad Catz FightPad PRO (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000380700005082000000000000,Mad Catz FightPad PRO (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+03000000380700008433000000000000,Mad Catz FightStick TE S+ PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,
+03000000380700008483000000000000,Mad Catz FightStick TE S+ PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b6,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+03000000380700008134000000000000,Mad Catz FightStick TE2+ PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b7,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b4,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000380700008184000000000000,Mad Catz FightStick TE2+ PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b5,leftstick:b10,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b4,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+03000000380700008034000000000000,Mad Catz TE2 PS3 Fightstick,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000380700008084000000000000,Mad Catz TE2 PS4 Fightstick,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+03000000380700008532000000000000,Madcatz Arcade Fightstick TE S PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000380700003888000000000000,Madcatz Arcade Fightstick TE S+ PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000380700001888000000000000,MadCatz SFIV FightStick PS3,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b5,lefttrigger:b7,leftx:a0,lefty:a1,rightshoulder:b4,righttrigger:b6,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,
+03000000380700008081000000000000,MADCATZ SFV Arcade FightStick Alpha PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+030000008305000031b0000000000000,MaxfireBlaze3,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,
+03000000250900000128000000000000,Mayflash Arcade Stick,a:b1,b:b2,back:b8,leftshoulder:b0,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b3,righttrigger:b7,start:b9,x:b5,y:b6,platform:Windows,
+03000000790000004418000000000000,Mayflash GameCube Controller,a:b1,b:b2,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b0,y:b3,platform:Windows,
+03000000790000004318000000000000,Mayflash GameCube Controller Adapter,a:b1,b:b2,back:b0,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b0,leftshoulder:b4,leftstick:b0,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b0,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b0,y:b3,platform:Windows,
+030000008f0e00001030000000000000,Mayflash USB Adapter for original Sega Saturn controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,lefttrigger:b5,rightshoulder:b2,righttrigger:b7,start:b9,x:b3,y:b4,platform:Windows,
+0300000025090000e803000000000000,Mayflash Wii Classic Controller,a:b1,b:b0,back:b8,dpdown:b13,dpleft:b12,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b2,platform:Windows,
+03000000790000000018000000000000,Mayflash WiiU Pro Game Controller Adapter (DInput),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000250900006688000000000000,MP-8866 Super Dual Box,a:b2,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Windows,
+030000001008000001e5000000000000,NEXT SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b6,start:b9,x:b3,y:b0,platform:Windows,
+03000000bd12000015d0000000000000,Nintendo Retrolink USB Super SNES Classic Controller,a:b2,b:b1,back:b8,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Windows,
+030000007e0500000920000000000000,Nintendo Switch Pro Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,
+030000004b120000014d000000000000,NYKO AIRFLO,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:a3,leftstick:a0,lefttrigger:b6,rightshoulder:b5,rightstick:a2,righttrigger:b7,start:b9,x:b2,y:b3,platform:Windows,
+03000000362800000100000000000000,OUYA Game Controller,a:b0,b:b3,dpdown:b9,dpleft:b10,dpright:b11,dpup:b8,guide:b14,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:b13,rightx:a3,righty:a4,x:b1,y:b2,platform:Windows,
+03000000120c0000f60e000000000000,P4 Wired Gamepad,a:b1,b:b2,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b5,lefttrigger:b7,rightshoulder:b4,righttrigger:b6,start:b9,x:b0,y:b3,platform:Windows,
+030000008f0e00000300000000000000,Piranha xtreme,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Windows,
+03000000d62000006dca000000000000,PowerA Pro Ex,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+030000008f0e00007530000000000000,PS (R) Gamepad,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b1,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000e30500009605000000000000,PS to USB convert cable,a:b2,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Windows,
+03000000100800000100000000000000,PS1 USB,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Windows,
+03000000100800000300000000000000,PS2 USB,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a4,righty:a2,start:b9,x:b3,y:b0,platform:Windows,
+030000004c0500006802000000000000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Windows,
+03000000888800000803000000000000,PS3 Controller,a:b2,b:b1,back:b8,dpdown:h0.8,dpleft:h0.4,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b9,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:b7,rightx:a3,righty:a4,start:b11,x:b0,y:b3,platform:Windows,
+03000000250900000500000000000000,PS3 DualShock,a:b2,b:b1,back:b9,dpdown:h0.8,dpleft:h0.4,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b0,y:b3,platform:Windows,
+03000000100000008200000000000000,PS360+ v1.66,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:h0.4,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,
+030000004c050000a00b000000000000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+030000004c050000c405000000000000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+030000004c050000cc09000000000000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+03000000300f00000011000000000000,QanBa Arcade JoyStick 1008,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b10,x:b0,y:b3,platform:Windows,
+03000000300f00001611000000000000,QanBa Arcade JoyStick 4018,a:b1,b:b2,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b9,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b8,x:b0,y:b3,platform:Windows,
+03000000222c00000020000000000000,QANBA DRONE ARCADE JOYSTICK,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,rightshoulder:b5,righttrigger:a4,start:b9,x:b0,y:b3,platform:Windows,
+03000000300f00001210000000000000,QanBa Joystick Plus,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,rightshoulder:b5,start:b9,x:b2,y:b3,platform:Windows,
+03000000341a00000104000000000000,QanBa Joystick Q4RAF,a:b5,b:b6,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b0,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b3,righttrigger:b7,start:b9,x:b1,y:b2,platform:Windows,
+03000000222c00000223000000000000,Qanba Obsidian Arcade Joystick PS3 Mode,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000222c00000023000000000000,Qanba Obsidian Arcade Joystick PS4 Mode,a:b1,b:b2,back:b13,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+03000000321500000003000000000000,Razer Hydra,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a2,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,
+030000000d0f00001100000000000000,REAL ARCADE PRO.3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,rightshoulder:b5,rightstick:b11,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00006a00000000000000,Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00006b00000000000000,Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00008a00000000000000,Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00008b00000000000000,Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00007000000000000000,REAL ARCADE PRO.4 VLX,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,rightshoulder:b5,rightstick:b11,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00002200000000000000,REAL ARCADE Pro.V3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00005b00000000000000,Real Arcade Pro.V4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+030000000d0f00005c00000000000000,Real Arcade Pro.V4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+03000000790000001100000000000000,Retrolink SNES Controller,a:b2,b:b1,back:b8,dpdown:+a4,dpleft:-a3,dpright:+a3,dpup:-a4,leftshoulder:b4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Windows,
+0300000000f000000300000000000000,RetroUSB.com RetroPad,a:b1,b:b5,back:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b3,x:b0,y:b4,platform:Windows,
+0300000000f00000f100000000000000,RetroUSB.com Super RetroPort,a:b1,b:b5,back:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b3,x:b0,y:b4,platform:Windows,
+030000006b140000010d000000000000,Revolution Pro Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+030000006f0e00001e01000000000000,Rock Candy Gamepad for PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,
+030000004f04000003d0000000000000,run'n'drive,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b7,leftshoulder:a3,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:a4,rightstick:b11,righttrigger:b5,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,
+03000000a30600001af5000000000000,Saitek Cyborg,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b0,y:b3,platform:Windows,
+03000000a306000023f6000000000000,Saitek Cyborg V.1 Game pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Windows,
+03000000300f00001201000000000000,Saitek Dual Analog Pad,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Windows,
+03000000a30600000cff000000000000,Saitek P2500 Force Rumble Pad,a:b2,b:b3,back:b11,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a2,righty:a3,x:b0,y:b1,platform:Windows,
+03000000a30600000c04000000000000,Saitek P2900,a:b1,b:b2,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b3,platform:Windows,
+03000000300f00001001000000000000,Saitek P480 Rumble Pad,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Windows,
+03000000a30600000b04000000000000,Saitek P990,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b3,platform:Windows,
+03000000a30600000b04000000010000,Saitek P990 Dual Analog Pad,a:b1,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b8,x:b0,y:b3,platform:Windows,
+03000000300f00001101000000000000,saitek rumble pad,a:b2,b:b3,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Windows,
+0300000000050000289b000000000000,Saturn_Adapter_2.0,a:b1,b:b2,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,start:b9,x:b0,y:b3,platform:Windows,
+030000009b2800000500000000000000,Saturn_Adapter_2.0,a:b1,b:b2,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,start:b9,x:b0,y:b3,platform:Windows,
+03000000341a00000208000000000000,SL-6555-SBK,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:-a4,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a4,rightx:a3,righty:a2,start:b7,x:b2,y:b3,platform:Windows,
+030000008f0e00000800000000000000,SpeedLink Strike FX Wireless,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,
+03000000ff1100003133000000000000,SVEN X-PAD,a:b2,b:b3,back:b4,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b9,rightx:a2,righty:a4,start:b5,x:b0,y:b1,platform:Windows,
+03000000fa1900000706000000000000,Team 5,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,
+03000000b50700001203000000000000,Techmobility X6-38V,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Windows,
+030000004f04000015b3000000000000,Thrustmaster Dual Analog 2,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Windows,
+030000004f04000000b3000000000000,Thrustmaster Firestorm Dual Power,a:b0,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b11,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b12,righttrigger:b7,rightx:a2,righty:a3,start:b10,x:b1,y:b3,platform:Windows,
+030000004f04000004b3000000000000,Thrustmaster Firestorm Dual Power 3,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Windows,
+03000000666600000488000000000000,TigerGame PS/PS2 Game Controller Adapter,a:b2,b:b1,back:b9,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Windows,
+03000000d90400000200000000000000,TwinShock PS2,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Windows,
+03000000380700006652000000000000,UnKnown,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b0,y:b3,platform:Windows,
+03000000632500002305000000000000,USB Vibration Joystick (BM),a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,
+03000000790000001b18000000000000,Venom Arcade Joystick,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,
+03000000450c00002043000000000000,XEOX Gamepad SL-6556-BK,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,
+03000000172700004431000000000000,XiaoMi Game Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b20,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a7,rightx:a2,righty:a5,start:b11,x:b3,y:b4,platform:Windows,
+03000000786901006e70000000000000,XInput Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,
+xinput,XInput Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,
+
+# Mac OS X
+03000000022000000090000001000000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,
+03000000203800000900000000010000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,
+03000000102800000900000000000000,8Bitdo SFC30 GamePad Joystick,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Mac OS X,
+03000000a00500003232000008010000,8Bitdo Zero GamePad,a:b0,b:b1,back:b10,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Mac OS X,
+03000000a00500003232000009010000,8Bitdo Zero GamePad,a:b0,b:b1,back:b10,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Mac OS X,
+030000008305000031b0000000000000,Cideko AK08b,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+03000000260900008888000088020000,Cyber Gadget GameCube Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:a5,rightx:a2,righty:a3~,start:b7,x:b2,y:b3,platform:Mac OS X,
+03000000a306000022f6000001030000,Cyborg V.3 Rumble Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:+a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:-a3,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Mac OS X,
+03000000790000000600000000000000,G-Shark GP-702,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b3,y:b0,platform:Mac OS X,
+03000000ad1b000001f9000000000000,Gamestop BB-070 X360 Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+0500000047532047616d657061640000,GameStop Gamepad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Mac OS X,
+030000000d0f00005f00000000010000,Hori Fighting Commander 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000000d0f00005e00000000010000,Hori Fighting Commander 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000000d0f00005f00000000000000,HORI Fighting Commander 4 PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000000d0f00005e00000000000000,HORI Fighting Commander 4 PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000000d0f00004d00000000000000,HORI Gem Pad 3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000000d0f00006e00000000010000,HORIPAD 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000000d0f00006600000000010000,HORIPAD 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000000d0f00006600000000000000,HORIPAD FPS PLUS 4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000008f0e00001330000011010000,HuiJia SNES Controller,a:b4,b:b2,back:b16,dpdown:+a2,dpleft:-a0,dpright:+a0,dpup:-a2,leftshoulder:b12,rightshoulder:b14,start:b18,x:b6,y:b0,platform:Mac OS X,
+03000000830500006020000000010000,iBuffalo SNES Controller,a:b1,b:b0,back:b6,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b7,x:b3,y:b2,platform:Mac OS X,
+03000000830500006020000000000000,iBuffalo USB 2-axis 8-button Gamepad,a:b1,b:b0,back:b6,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,start:b7,x:b3,y:b2,platform:Mac OS X,
+030000007e0500000620000001000000,Joy-Con (L),+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b0,b:b1,leftshoulder:b4,leftstick:b10,rightshoulder:b5,start:b8,x:b2,y:b3,platform:Mac OS X,
+030000006d04000016c2000000020000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000006d04000016c2000000030000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000006d04000016c2000014040000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000006d04000016c2000000000000,Logitech F310 Gamepad (DInput),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000006d04000018c2000000000000,Logitech F510 Gamepad (DInput),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000006d0400001fc2000000000000,Logitech F710 Gamepad (XInput),a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+030000006d04000019c2000000000000,Logitech Wireless Gamepad (DInput),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+03000000380700005032000000010000,Mad Catz FightPad PRO (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+03000000380700005082000000010000,Mad Catz FightPad PRO (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+03000000790000004418000000010000,Mayflash GameCube Controller,a:b1,b:b2,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b0,y:b3,platform:Mac OS X,
+0300000025090000e803000000000000,Mayflash Wii Classic Controller,a:b1,b:b0,back:b8,dpdown:b13,dpleft:b12,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b2,platform:Mac OS X,
+03000000790000000018000000000000,Mayflash WiiU Pro Game Controller Adapter (DInput),a:b4,b:b8,back:b32,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b16,leftstick:b40,lefttrigger:b24,leftx:a0,lefty:a4,rightshoulder:b20,rightstick:b44,righttrigger:b28,rightx:a8,righty:a12,start:b36,x:b0,y:b12,platform:Mac OS X,
+03000000d8140000cecf000000000000,MC Cthulhu,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000001008000001e5000006010000,NEXT SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b6,start:b9,x:b3,y:b0,platform:Mac OS X,
+030000007e0500000920000000000000,Nintendo Switch Pro Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Mac OS X,
+030000008f0e00000300000000000000,Piranha xtreme,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Mac OS X,
+03000000d62000006dca000000010000,PowerA Pro Ex,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000004c0500006802000000000000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Mac OS X,
+030000004c0500006802000000010000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Mac OS X,
+030000004c050000a00b000000010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000004c050000c405000000000000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000004c050000c405000000010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000004c050000cc09000000010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000008916000000fd000000000000,Razer Onza TE,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+03000000321500000010000000010000,Razer RAIJU,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+0300000032150000030a000000000000,Razer Wildcat,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+03000000790000001100000000000000,Retrolink Classic Controller,a:b2,b:b1,back:b8,leftshoulder:b4,leftx:a3,lefty:a4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Mac OS X,
+03000000790000001100000006010000,Retrolink SNES Controller,a:b2,b:b1,back:b8,dpdown:+a4,dpleft:-a3,dpright:+a3,dpup:-a4,leftshoulder:b4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Mac OS X,
+030000006b140000010d000000010000,Revolution Pro Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+03000000c6240000fefa000000000000,Rock Candy Gamepad for PS3,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+03000000811700007e05000000000000,Sega Saturn,a:b2,b:b4,dpdown:b16,dpleft:b15,dpright:b14,dpup:b17,leftshoulder:b8,lefttrigger:a5,leftx:a0,lefty:a2,rightshoulder:b9,righttrigger:a4,start:b13,x:b0,y:b6,platform:Mac OS X,
+03000000b40400000a01000000000000,Sega Saturn USB Gamepad,a:b0,b:b1,back:b5,guide:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b8,x:b3,y:b4,platform:Mac OS X,
+030000003512000021ab000000000000,SFC30 Joystick,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Mac OS X,
+030000004c050000cc09000000000000,Sony DualShock 4 V2,a:b1,b:b2,back:b13,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000004c050000a00b000000000000,Sony DualShock 4 Wireless Adaptor,a:b1,b:b2,back:b13,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+030000005e0400008e02000001000000,Steam Virtual GamePad,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+03000000110100002014000000000000,SteelSeries Nimbus,a:b0,b:b1,dpdown:b9,dpleft:b11,dpright:b10,dpup:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b12,x:b2,y:b3,platform:Mac OS X,
+03000000110100002014000001000000,SteelSeries Nimbus,a:b0,b:b1,dpdown:b9,dpleft:b11,dpright:b10,dpup:b8,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1~,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3~,x:b2,y:b3,platform:Mac OS X,
+03000000381000002014000001000000,SteelSeries Nimbus,a:b0,b:b1,dpdown:b9,dpleft:b11,dpright:b10,dpup:b8,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1~,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3~,x:b2,y:b3,platform:Mac OS X,
+03000000110100001714000000000000,SteelSeries Stratus XL,a:b0,b:b1,dpdown:b9,dpleft:b11,dpright:b10,dpup:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1~,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3~,start:b12,x:b2,y:b3,platform:Mac OS X,
+03000000110100001714000020010000,SteelSeries Stratus XL,a:b0,b:b1,dpdown:b9,dpleft:b11,dpright:b10,dpup:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1~,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3~,start:b12,x:b2,y:b3,platform:Mac OS X,
+030000004f04000015b3000000000000,Thrustmaster Dual Analog 3.2,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Mac OS X,
+030000004f04000000b3000000000000,Thrustmaster Firestorm Dual Power,a:b0,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b11,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:b7,rightx:a2,righty:a3,start:b10,x:b1,y:b3,platform:Mac OS X,
+03000000bd12000015d0000000000000,Tomee SNES USB Controller,a:b2,b:b1,back:b8,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Mac OS X,
+03000000bd12000015d0000000010000,Tomee SNES USB Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Mac OS X,
+03000000100800000100000000000000,Twin USB Joystick,a:b4,b:b2,back:b16,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b12,leftstick:b20,lefttrigger:b8,leftx:a0,lefty:a2,rightshoulder:b14,rightstick:b22,righttrigger:b10,rightx:a6,righty:a4,start:b18,x:b6,y:b0,platform:Mac OS X,
+050000005769696d6f74652028303000,Wii Remote,a:b4,b:b5,back:b7,dpdown:b3,dpleft:b0,dpright:b1,dpup:b2,guide:b8,leftshoulder:b11,lefttrigger:b12,leftx:a0,lefty:a1,start:b6,x:b10,y:b9,platform:Mac OS X,
+050000005769696d6f74652028313800,Wii U Pro Controller,a:b16,b:b15,back:b7,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b8,leftshoulder:b19,leftstick:b23,lefttrigger:b21,leftx:a0,lefty:a1,rightshoulder:b20,rightstick:b24,righttrigger:b22,rightx:a2,righty:a3,start:b6,x:b18,y:b17,platform:Mac OS X,
+030000005e0400008e02000000000000,X360 Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+03000000c6240000045d000000000000,Xbox 360 Wired Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+030000005e040000d102000000000000,Xbox One Wired Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+030000005e040000dd02000000000000,Xbox One Wired Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+030000005e040000e302000000000000,Xbox One Wired Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+030000005e040000e002000000000000,Xbox Wireless Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Mac OS X,
+030000005e040000e002000003090000,Xbox Wireless Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Mac OS X,
+030000005e040000ea02000000000000,Xbox Wireless Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,
+030000005e040000fd02000003090000,Xbox Wireless Controller,a:b0,b:b1,back:b16,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b15,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Mac OS X,
+03000000172700004431000029010000,XiaoMi Game Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b15,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a6,rightx:a2,righty:a5,start:b11,x:b3,y:b4,platform:Mac OS X,
+03000000120c0000100e000000010000,ZEROPLUS P4 Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,
+
+# Linux
+03000000022000000090000011010000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,
+05000000203800000900000000010000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,
+05000000c82d00002038000000010000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,
+03000000c82d00000190000011010000,8Bitdo NES30 Pro 8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a5,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,
+05000000102800000900000000010000,8Bitdo SFC30 GamePad,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Linux,
+05000000c82d00003028000000010000,8Bitdo SFC30 GamePad,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Linux,
+05000000a00500003232000001000000,8Bitdo Zero GamePad,a:b0,b:b1,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Linux,
+05000000a00500003232000008010000,8Bitdo Zero GamePad,a:b0,b:b1,back:b10,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Linux,
+030000006f0e00003901000000430000,Afterglow Prismatic Wired Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000006f0e00003901000020060000,Afterglow Wired Controller for Xbox One,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000100000008200000011010000,Akishop Customs PS360+ v1.66,a:b1,b:b2,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,
+05000000050b00000045000031000000,ASUS Gamepad,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b6,leftshoulder:b4,leftstick:b7,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a3,start:b10,x:b2,y:b3,platform:Linux,
+03000000666600006706000000010000,boom PSX to PC Converter,a:b2,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,leftshoulder:b6,leftstick:b9,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b10,righttrigger:b5,rightx:a2,righty:a3,start:b11,x:b3,y:b0,platform:Linux,
+03000000e82000006058000001010000,Cideko AK08b,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,
+03000000260900008888000000010000,Cyber Gadget GameCube Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:a5,rightx:a2,righty:a3~,start:b7,x:b2,y:b3,platform:Linux,
+03000000a306000022f6000011010000,Cyborg V.3 Rumble Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:+a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:-a3,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Linux,
+03000000b40400000a01000000010000,CYPRESS USB Gamepad,a:b0,b:b1,back:b5,guide:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b8,x:b3,y:b4,platform:Linux,
+03000000790000000600000010010000,DragonRise Inc. Generic USB Joystick,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b3,y:b0,platform:Linux,
+030000006f0e00003001000001010000,EA Sports PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+03000000341a000005f7000010010000,GameCube {HuiJia USB box},a:b1,b:b2,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b0,y:b3,platform:Linux,
+0500000047532047616d657061640000,GameStop Gamepad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,
+030000006f0e00000104000000010000,Gamestop Logic3 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000006f0e00001304000000010000,Generic X-Box pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:a0,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:a3,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000006f0e00001f01000000010000,Generic X-Box pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000f0250000c183000010010000,Goodbetterbest Ltd USB Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+0300000079000000d418000000010000,GPD Win 2 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000280400000140000000010000,Gravis GamePad Pro USB ,a:b1,b:b2,back:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,
+030000008f0e00000610000000010000,GreenAsia Electronics 4Axes 12Keys GamePad ,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b9,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b10,righttrigger:b5,rightx:a3,righty:a2,start:b11,x:b3,y:b0,platform:Linux,
+030000008f0e00000300000010010000,GreenAsia Inc. USB Joystick,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Linux,
+030000008f0e00001200000010010000,GreenAsia Inc. USB Joystick,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b2,y:b3,platform:Linux,
+0500000047532067616d657061640000,GS gamepad,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,
+06000000adde0000efbe000002010000,Hidromancer Game Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000d81400000862000011010000,HitBox (PS3/PC) Analog Mode,a:b1,b:b2,back:b8,guide:b9,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b12,x:b0,y:b3,platform:Linux,
+03000000c9110000f055000011010000,HJC Game GAMEPAD,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,
+030000000d0f00000d00000000010000,hori,a:b0,b:b6,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b3,leftx:b4,lefty:b5,rightshoulder:b7,start:b9,x:b1,y:b2,platform:Linux,
+030000000d0f00001000000011010000,HORI CO. LTD. FIGHTING STICK 3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,
+030000000d0f00006a00000011010000,HORI CO. LTD. Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+030000000d0f00006b00000011010000,HORI CO. LTD. Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+030000000d0f00002200000011010000,HORI CO. LTD. REAL ARCADE Pro.V3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,
+030000000d0f00005f00000011010000,Hori Fighting Commander 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+030000000d0f00005e00000011010000,Hori Fighting Commander 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+03000000ad1b000001f5000033050000,Hori Pad EX Turbo 2,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000000d0f00006e00000011010000,HORIPAD 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+030000000d0f00006600000011010000,HORIPAD 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+030000000d0f00006700000001010000,HORIPAD ONE,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000008f0e00001330000010010000,HuiJia SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b9,x:b3,y:b0,platform:Linux,
+03000000830500006020000010010000,iBuffalo SNES Controller,a:b1,b:b0,back:b6,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b7,x:b3,y:b2,platform:Linux,
+050000006964726f69643a636f6e0000,idroid:con,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+03000000b50700001503000010010000,impact,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Linux,
+03000000fd0500000030000000010000,InterAct GoPad I-73000 (Fighting Game Layout),a:b3,b:b4,back:b6,leftx:a0,lefty:a1,rightshoulder:b2,righttrigger:b5,start:b7,x:b0,y:b1,platform:Linux,
+0500000049190000020400001b010000,Ipega PG-9069 - Bluetooth Gamepad,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b161,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,
+030000006e0500000320000010010000,JC-U3613M - DirectInput Mode,a:b2,b:b3,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a2,righty:a3,start:b11,x:b0,y:b1,platform:Linux,
+03000000300f00001001000010010000,Jess Tech Dual Analog Rumble Pad,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Linux,
+03000000ba2200002010000001010000,Jess Technology USB Game Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Linux,
+030000006f0e00000103000000020000,Logic3 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000006d04000019c2000010010000,Logitech Cordless RumblePad 2,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+030000006d04000016c2000010010000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+030000006d04000016c2000011010000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+030000006d0400001dc2000014400000,Logitech F310 Gamepad (XInput),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000006d0400001ec2000020200000,Logitech F510 Gamepad (XInput),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000006d04000019c2000011010000,Logitech F710 Gamepad (DInput),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+030000006d0400001fc2000005030000,Logitech F710 Gamepad (XInput),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000006d04000015c2000010010000,Logitech Logitech Extreme 3D,a:b0,b:b4,back:b6,guide:b8,leftshoulder:b9,leftstick:h0.8,leftx:a0,lefty:a1,rightshoulder:b10,rightstick:h0.2,start:b7,x:b2,y:b5,platform:Linux,
+030000006d04000018c2000010010000,Logitech RumblePad 2,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+030000006d04000011c2000010010000,Logitech WingMan Cordless RumblePad,a:b0,b:b1,back:b2,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b5,leftshoulder:b6,lefttrigger:b9,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b10,rightx:a3,righty:a4,start:b8,x:b3,y:b4,platform:Linux,
+05000000380700006652000025010000,Mad Catz C.T.R.L.R ,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+03000000380700005032000011010000,Mad Catz FightPad PRO (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+03000000380700005082000011010000,Mad Catz FightPad PRO (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+03000000ad1b00002ef0000090040000,Mad Catz Fightpad SFxT,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,lefttrigger:a2,rightshoulder:b5,righttrigger:a5,start:b7,x:b2,y:b3,platform:Linux,
+03000000380700008034000011010000,Mad Catz fightstick (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+03000000380700008084000011010000,Mad Catz fightstick (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+03000000380700008433000011010000,Mad Catz FightStick TE S+ PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+03000000380700008483000011010000,Mad Catz FightStick TE S+ PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+03000000380700001647000010040000,Mad Catz Wired Xbox 360 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000380700003847000090040000,Mad Catz Wired Xbox 360 Controller (SFIV),a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,
+03000000ad1b000016f0000090040000,Mad Catz Xbox 360 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000380700001888000010010000,MadCatz PC USB Wired Stick 8818,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+03000000380700003888000010010000,MadCatz PC USB Wired Stick 8838,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:a0,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+0300000079000000d218000011010000,MAGIC-NS,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+03000000790000004418000010010000,Mayflash GameCube Controller,a:b1,b:b2,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b0,y:b3,platform:Linux,
+03000000780000000600000010010000,Microntek USB Joystick,a:b2,b:b1,back:b8,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,start:b9,x:b3,y:b0,platform:Linux,
+030000005e0400000e00000000010000,Microsoft SideWinder,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,rightshoulder:b7,start:b8,x:b3,y:b4,platform:Linux,
+030000005e0400008e02000004010000,Microsoft X-Box 360 pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000005e0400008e02000062230000,Microsoft X-Box 360 pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000005e040000e302000003020000,Microsoft X-Box One Elite pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000005e040000d102000001010000,Microsoft X-Box One pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000005e040000d102000003020000,Microsoft X-Box One pad v2,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000005e0400008502000000010000,Microsoft X-Box pad (Japan),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b5,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b2,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b3,y:b4,platform:Linux,
+030000005e0400008902000021010000,Microsoft X-Box pad v2 (US),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b5,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b2,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b3,y:b4,platform:Linux,
+05000000d6200000ad0d000001000000,Moga Pro,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b7,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a3,start:b6,x:b2,y:b3,platform:Linux,
+03000000250900006688000000010000,MP-8866 Super Dual Box,a:b2,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Linux,
+030000001008000001e5000010010000,NEXT SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b6,start:b9,x:b3,y:b0,platform:Linux,
+050000007e0500000920000001000000,Nintendo Switch Pro Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,
+050000007e0500003003000001000000,Nintendo Wii Remote Pro Controller,a:b0,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b16,dpup:b13,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b2,platform:Linux,
+05000000010000000100000003000000,Nintendo Wiimote,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,
+030000000d0500000308000010010000,Nostromo n45 Dual Analog Gamepad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b9,leftshoulder:b4,leftstick:b12,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b10,x:b2,y:b3,platform:Linux,
+03000000550900001072000011010000,NVIDIA Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b13,leftshoulder:b4,leftstick:b8,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Linux,
+03000000451300000830000010010000,NYKO CORE,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+030000005e0400000202000000010000,Old Xbox pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b5,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b2,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b3,y:b4,platform:Linux,
+05000000362800000100000002010000,OUYA Game Controller,a:b0,b:b3,dpdown:b9,dpleft:b10,dpright:b11,dpup:b8,guide:b14,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,x:b1,y:b2,platform:Linux,
+05000000362800000100000003010000,OUYA Game Controller,a:b0,b:b3,dpdown:b9,dpleft:b10,dpright:b11,dpup:b8,guide:b14,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,x:b1,y:b2,platform:Linux,
+03000000ff1100003133000010010000,PC Game Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,
+030000006f0e00006401000001010000,PDP Battlefield One,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000d62000006dca000011010000,PowerA Pro Ex,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+03000000ff1100004133000010010000,PS2 Controller,a:b2,b:b1,back:b8,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,start:b9,x:b3,y:b0,platform:Linux,
+03000000341a00003608000011010000,PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+030000004c0500006802000010010000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Linux,
+030000004c0500006802000010810000,PS3 Controller,a:b0,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b16,dpup:b13,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,
+030000004c0500006802000011010000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Linux,
+030000004c0500006802000011810000,PS3 Controller,a:b0,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b16,dpup:b13,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,
+050000004c0500006802000000010000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:a12,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:a13,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Linux,
+050000004c0500006802000000810000,PS3 Controller,a:b0,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b16,dpup:b13,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,
+050000004c0500006802000000800000,PS3 Controller (Bluetooth),a:b0,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b16,dpup:b13,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,
+05000000504c415953544154494f4e00,PS3 Controller (Bluetooth),a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Linux,
+060000004c0500006802000000010000,PS3 Controller (Bluetooth),a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Linux,
+030000004c050000a00b000011010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+030000004c050000a00b000011810000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,
+030000004c050000c405000011010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+030000004c050000c405000011810000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,
+030000004c050000cc09000011010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+030000004c050000cc09000011810000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,
+050000004c050000c405000000010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+050000004c050000c405000000810000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,
+050000004c050000cc09000000010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+050000004c050000cc09000000810000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,
+03000000300f00001211000011010000,QanBa Arcade JoyStick,a:b2,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b5,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b6,start:b9,x:b1,y:b3,platform:Linux,
+030000009b2800000300000001010000,raphnet.net 4nes4snes v1.5,a:b0,b:b4,back:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b3,x:b1,y:b5,platform:Linux,
+030000008916000001fd000024010000,Razer Onza Classic Edition,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000008916000000fd000024010000,Razer Onza Tournament,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000321500000010000011010000,Razer RAIJU,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+03000000c6240000045d000025010000,Razer Sabertooth,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000321500000009000011010000,Razer Serval,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Linux,
+050000003215000000090000163a0000,Razer Serval,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Linux,
+0300000032150000030a000001010000,Razer Wildcat,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000790000001100000010010000,Retrolink SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Linux,
+0300000000f000000300000000010000,RetroUSB.com RetroPad,a:b1,b:b5,back:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b3,x:b0,y:b4,platform:Linux,
+0300000000f00000f100000000010000,RetroUSB.com Super RetroPort,a:b1,b:b5,back:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b3,x:b0,y:b4,platform:Linux,
+030000006b140000010d000011010000,Revolution Pro Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+030000006f0e00001e01000011010000,Rock Candy Gamepad for PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+030000006f0e00004601000001010000,Rock Candy Wired Controller for Xbox One,a:b0,b:b1,back:b6,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000a306000023f6000011010000,Saitek Cyborg V.1 Game Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Linux,
+03000000a30600000cff000010010000,Saitek P2500 Force Rumble Pad,a:b2,b:b3,back:b11,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a3,righty:a2,x:b0,y:b1,platform:Linux,
+03000000a30600000c04000011010000,Saitek P2900 Wireless Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b9,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b12,x:b0,y:b3,platform:Linux,
+03000000a30600000901000000010000,Saitek P880,a:b2,b:b3,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a3,righty:a2,x:b0,y:b1,platform:Linux,
+03000000a30600000b04000000010000,Saitek P990 Dual Analog Pad,a:b1,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b8,x:b0,y:b3,platform:Linux,
+03000000a306000018f5000010010000,Saitek PLC Saitek P3200 Rumble Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b0,y:b3,platform:Linux,
+03000000c01600008704000011010000,Serial/Keyboard/Mouse/Joystick,a:b12,b:b10,back:b4,dpdown:b2,dpleft:b3,dpright:b1,dpup:b0,leftshoulder:b9,leftstick:b14,lefttrigger:b6,leftx:a1,lefty:a0,rightshoulder:b8,rightstick:b15,righttrigger:b7,rightx:a2,righty:a3,start:b5,x:b13,y:b11,platform:Linux,
+03000000f025000021c1000010010000,ShanWan Gioteck PS3 Wired Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,
+03000000632500007505000010010000,SHANWAN PS3/PC Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,
+03000000250900000500000000010000,Sony PS2 pad with SmartJoy adapter,a:b2,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Linux,
+030000005e0400008e02000073050000,Speedlink TORID Wireless Gamepad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000005e0400008e02000020200000,SpeedLink XEOX Pro Analog Gamepad pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000de2800000112000001000000,Steam Controller,a:b0,b:b1,back:b6,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Linux,
+03000000de2800000211000001000000,Steam Controller,a:b0,b:b1,back:b6,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Linux,
+03000000de2800004211000001000000,Steam Controller,a:b0,b:b1,back:b6,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Linux,
+03000000de280000fc11000001000000,Steam Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+05000000de2800000212000001000000,Steam Controller,a:b0,b:b1,back:b6,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Linux,
+05000000de2800000511000001000000,Steam Controller,a:b0,b:b1,back:b6,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Linux,
+03000000de280000ff11000001000000,Steam Virtual Gamepad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000ad1b000038f0000090040000,Street Fighter IV FightStick TE,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000666600000488000000010000,Super Joy Box 5 Pro,a:b2,b:b1,back:b9,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Linux,
+030000004f04000020b3000010010000,Thrustmaster 2 in 1 DT,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Linux,
+030000004f04000015b3000010010000,Thrustmaster Dual Analog 4,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Linux,
+030000004f04000023b3000000010000,Thrustmaster Dual Trigger 3-in-1,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+030000004f04000000b3000010010000,Thrustmaster Firestorm Dual Power,a:b0,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b11,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b12,righttrigger:b7,rightx:a2,righty:a3,start:b10,x:b1,y:b3,platform:Linux,
+030000004f04000008d0000000010000,Thrustmaster Run N Drive Wireless,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+030000004f04000009d0000000010000,Thrustmaster Run N Drive Wireless PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,
+03000000bd12000015d0000010010000,Tomee SNES USB Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Linux,
+03000000d814000007cd000011010000,Toodles 2008 Chimp PC/PS3,a:b0,b:b1,back:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b9,x:b3,y:b2,platform:Linux,
+03000000100800000100000010010000,Twin USB PS2 Adapter,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Linux,
+03000000100800000300000010010000,USB Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Linux,
+03000000790000001100000000010000,USB Gamepad1,a:b2,b:b1,back:b8,dpdown:a0,dpleft:a1,dpright:a2,dpup:a4,start:b9,platform:Linux,
+05000000ac0500003232000001000000,VR-BOX,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b2,y:b3,platform:Linux,
+030000005e0400008e02000010010000,X360 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000005e0400008e02000014010000,X360 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000005e0400001907000000010000,X360 Wireless Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000005e0400009102000007010000,X360 Wireless Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000005e040000a102000000010000,X360 Wireless Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+030000005e040000a102000007010000,X360 Wireless Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+0000000058626f782033363020576900,Xbox 360 Wireless Controller,a:b0,b:b1,back:b14,dpdown:b11,dpleft:b12,dpright:b13,dpup:b10,guide:b7,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b6,x:b2,y:b3,platform:Linux,
+030000005e040000a102000014010000,Xbox 360 Wireless Receiver (XBOX),a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+0000000058626f782047616d65706100,Xbox Gamepad (userspace driver),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Linux,
+050000005e040000e002000003090000,Xbox One Wireless Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+050000005e040000fd02000003090000,Xbox One Wireless Controller,a:b0,b:b1,back:b15,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b16,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,
+03000000450c00002043000010010000,XEOX Gamepad SL-6556-BK,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,
+05000000172700004431000029010000,XiaoMi Game Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b20,leftshoulder:b6,leftstick:b13,lefttrigger:a7,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a6,rightx:a2,righty:a5,start:b11,x:b3,y:b4,platform:Linux,
+03000000c0160000e105000001010000,Xin-Mo Xin-Mo Dual Arcade,a:b4,b:b3,back:b6,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b9,leftshoulder:b2,leftx:a0,lefty:a1,rightshoulder:b5,start:b7,x:b1,y:b0,platform:Linux,
+xinput,XInput Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,
+03000000120c0000100e000011010000,ZEROPLUS P4 Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,
+
+# Android
+64633436313965656664373634323364,Microsoft X-Box 360 pad,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b9,leftstick:b7,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b10,rightstick:b8,righttrigger:a5,rightx:a2,righty:a3,x:b2,y:b3,platform:Android,
+37336435666338653565313731303834,NVIDIA Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b9,leftstick:b7,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b10,rightstick:b8,righttrigger:a5,rightx:a2,righty:a3,start:b6,x:b2,y:b3,platform:Android,
+4e564944494120436f72706f72617469,NVIDIA Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b9,leftstick:b7,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b10,rightstick:b8,righttrigger:a5,rightx:a2,righty:a3,start:b6,x:b2,y:b3,platform:Android,
+61363931656135336130663561616264,NVIDIA Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b9,leftstick:b7,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b10,rightstick:b8,righttrigger:a5,rightx:a2,righty:a3,start:b6,x:b2,y:b3,platform:Android,
+35643031303033326130316330353564,PS4 Controller,a:b1,b:b17,back:b15,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b5,leftshoulder:b3,leftstick:b4,lefttrigger:+a3,leftx:a0,lefty:a1,rightshoulder:b18,rightstick:b6,righttrigger:+a4,rightx:a2,righty:a5,start:b16,x:b0,y:b2,platform:Android,
+05000000de2800000511000001000000,Steam Controller,a:b0,b:b1,back:b6,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Android,
+5477696e20555342204a6f7973746963,Twin USB Joystick,a:b22,b:b21,back:b28,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b26,leftstick:b30,lefttrigger:b24,leftx:a0,lefty:a1,rightshoulder:b27,rightstick:b31,righttrigger:b25,rightx:a3,righty:a2,start:b29,x:b23,y:b20,platform:Android,
+34356136633366613530316338376136,Xbox Wireless Controller,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b3,leftstick:b15,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b18,rightstick:b16,righttrigger:a5,rightx:a3,righty:a4,x:b17,y:b2,platform:Android,
+
+# iOS
+4d466947616d65706164010000000000,MFi Extended Gamepad,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a5,rightx:a3,righty:a4,start:b6,x:b2,y:b3,platform:iOS,
+4d466947616d65706164020000000000,MFi Gamepad,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,rightshoulder:b5,start:b6,x:b2,y:b3,platform:iOS,
+05000000de2800000511000001000000,Steam Controller,a:b0,b:b1,back:b6,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:iOS,

app/gui/AppView.qml

@@ -1,4 +1,5 @@
 import QtQuick 2.9
+import QtQuick.Dialogs 1.2
 import QtQuick.Controls 2.2
 
 import AppModel 1.0
@@ -15,26 +16,25 @@ GridView {
     anchors.topMargin: 20
     anchors.rightMargin: 5
     anchors.bottomMargin: 5
-    cellWidth: 225; cellHeight: 350;
-    focus: true
-
-    // Cache delegates for 1000px in both directions to improve
-    // scrolling and resizing performance
-    cacheBuffer: 1000
+    cellWidth: 225; cellHeight: 385;
 
     // The StackView will trigger a visibility change when
     // we're pushed onto it, causing our onVisibleChanged
     // routine to run, but only if we start as invisible
     visible: false
 
+    function computerLost()
+    {
+        // Go back to the PC view on PC loss
+        stackView.pop()
+    }
+
     onVisibleChanged: {
         if (visible) {
-            // Start polling when this view is shown
-            ComputerManager.startPolling()
+            appModel.computerLost.connect(computerLost)
         }
         else {
-            // Stop polling when this view is not on top
-            ComputerManager.stopPollingAsync()
+            appModel.computerLost.disconnect(computerLost)
         }
     }
 
@@ -47,18 +47,13 @@ GridView {
 
     model: appModel
 
-    delegate: Item {
-        width: 200; height: 300;
-
-        Component.onCompleted: {
-            if (model.running) {
-                appNameText.text = "<font color=\"green\">Running</font><font color=\"white\"> - </font>" + appNameText.text
-            }
-        }
+    delegate: ItemDelegate {
+        width: 200; height: 335;
 
         Image {
             id: appIcon
             anchors.horizontalCenter: parent.horizontalCenter;
+            y: 20
             source: model.boxart
             sourceSize {
                 width: 150
@@ -66,11 +61,21 @@ GridView {
             }
         }
 
+        Image {
+            id: runningIcon
+            anchors.centerIn: appIcon
+            visible: model.running
+            source: "qrc:/res/baseline-play_circle_filled_white-48px.svg"
+            sourceSize {
+                width: 75
+                height: 75
+            }
+        }
+
         Text {
             id: appNameText
             text: model.name
             color: "white"
-
             width: parent.width
             height: 125
             anchors.top: appIcon.bottom
@@ -80,18 +85,88 @@ GridView {
             elide: Text.ElideRight
         }
 
+        function launchOrResumeSelectedApp()
+        {
+            var runningIndex = appModel.getRunningAppIndex()
+            if (runningIndex >= 0 && runningIndex !== index) {
+                quitAppDialog.appName = appModel.getRunningAppName()
+                quitAppDialog.segueToStream = true
+                quitAppDialog.nextAppName = model.name
+                quitAppDialog.nextAppIndex = index
+                quitAppDialog.open()
+                return
+            }
+
+            var component = Qt.createComponent("StreamSegue.qml")
+            var segue = component.createObject(stackView, {"appName": model.name, "session": appModel.createSessionForApp(index)})
+            stackView.push(segue)
+        }
+
+        onClicked: {
+            // Nothing is running or this app is running
+            launchOrResumeSelectedApp()
+        }
+
         MouseArea {
             anchors.fill: parent
+            acceptedButtons: Qt.RightButton
             onClicked: {
-                // TODO: Check if a different game is running
-
-                var component = Qt.createComponent("StreamSegue.qml")
-                var segue = component.createObject(stackView)
-                segue.appname = model.name
-                segue.session = appModel.createSessionForApp(index)
-                stackView.push(segue)
+                // Right click
+                appContextMenu.open()
             }
         }
+
+        Menu {
+            id: appContextMenu
+            MenuItem {
+                text: model.running ? "Resume Game" : "Launch Game"
+                onTriggered: {
+                    appContextMenu.close()
+                    launchOrResumeSelectedApp()
+                }
+                height: visible ? implicitHeight : 0
+            }
+            MenuItem {
+                text: "Quit Game"
+                onTriggered: {
+                    quitAppDialog.appName = appModel.getRunningAppName()
+                    quitAppDialog.segueToStream = false
+                    quitAppDialog.open()
+                }
+                visible: model.running
+                height: visible ? implicitHeight : 0
+            }
+        }
+    }
+
+    MessageDialog {
+        id: quitAppDialog
+        modality:Qt.WindowModal
+        property string appName : ""
+        property bool segueToStream : false
+        property string nextAppName: ""
+        property int nextAppIndex: 0
+        text:"Are you sure you want to quit " + appName +"? Any unsaved progress will be lost."
+        standardButtons: StandardButton.Yes | StandardButton.No
+        onYes: {
+            var component = Qt.createComponent("QuitSegue.qml")
+            var params = {"appName": appName}
+            if (segueToStream) {
+                // Store the session and app name if we're going to stream after
+                // successfully quitting the old app.
+                params.nextAppName = nextAppName
+                params.nextSession = appModel.createSessionForApp(nextAppIndex)
+            }
+            else {
+                params.nextAppName = null
+                params.nextSession = null
+            }
+
+            stackView.push(component.createObject(stackView, params))
+
+            // Trigger the quit after pushing the quit segue on screen
+            appModel.quitRunningApp()
+        }
     }
 
     ScrollBar.vertical: ScrollBar {

app/gui/PcView.qml

@@ -1,7 +1,8 @@
 import QtQuick 2.9
 import QtQuick.Controls 2.2
-import QtQuick.Dialogs 1.3
+import QtQuick.Dialogs 1.2
 import QtQuick.Layouts 1.3
+import QtQuick.Window 2.2
 
 import ComputerModel 1.0
 
@@ -18,7 +19,6 @@ GridView {
     anchors.rightMargin: 5
     anchors.bottomMargin: 5
     cellWidth: 350; cellHeight: 350;
-    focus: true
     objectName: "Computers"
 
     // The StackView will trigger a visibility change when
@@ -34,32 +34,21 @@ GridView {
         // Setup signals on CM
         ComputerManager.computerAddCompleted.connect(addComplete)
 
-        if (!prefs.hasAnyHardwareAcceleration()) {
+        if (prefs.isRunningWayland()) {
+            waylandDialog.open()
+        }
+        else if (!prefs.hasAnyHardwareAcceleration()) {
             noHwDecoderDialog.open()
         }
     }
 
-    onVisibleChanged: {
-        if (visible) {
-            // Start polling when this view is shown
-            ComputerManager.startPolling()
-        }
-        else {
-            // Stop polling when this view is not top-most
-            ComputerManager.stopPollingAsync()
-        }
-    }
-
     function pairingComplete(error)
     {
         // Close the PIN dialog
         pairDialog.close()
 
-        // Start polling again
-        ComputerManager.startPolling()
-
         // Display a failed dialog if we got an error
-        if (error !== null) {
+        if (error !== undefined) {
             errorDialog.text = error
             errorDialog.open()
         }
@@ -68,7 +57,7 @@ GridView {
     function addComplete(success)
     {
         if (!success) {
-            errorDialog.text = "Unable to connect to the specified PC. Ensure GameStream is enabled in GeForce Experience."
+            errorDialog.text = "Unable to connect to the specified PC. Click the Help button for possible solutions."
             errorDialog.open()
         }
     }
@@ -81,14 +70,14 @@ GridView {
         return model
     }
 
-    model: createModel()
+    model: computerModel
 
-    delegate: Item {
+    delegate: ItemDelegate {
         width: 300; height: 300;
 
         Image {
             id: pcIcon
-            anchors.horizontalCenter: parent.horizontalCenter;
+            anchors.horizontalCenter: parent.horizontalCenter
             source: {
                 model.addPc ? "qrc:/res/ic_add_to_queue_white_48px.svg" : "qrc:/res/ic_tv_white_48px.svg"
             }
@@ -98,6 +87,30 @@ GridView {
             }
         }
 
+        Image {
+            // TODO: Tooltip
+            id: stateIcon
+            anchors.horizontalCenter: pcIcon.horizontalCenter
+            anchors.verticalCenter: pcIcon.verticalCenter
+            anchors.verticalCenterOffset: -10
+            visible: !model.addPc && !model.statusUnknown && (!model.online || !model.paired)
+            source: !model.online ? "qrc:/res/baseline-warning-24px.svg" : "qrc:/res/baseline-lock-24px.svg"
+            sourceSize {
+                width: 75
+                height: 75
+            }
+        }
+
+        BusyIndicator {
+            id: statusUnknownSpinner
+            anchors.horizontalCenter: pcIcon.horizontalCenter
+            anchors.verticalCenter: pcIcon.verticalCenter
+            anchors.verticalCenterOffset: -10
+            width: 75
+            height: 75
+            visible: !model.addPc && model.statusUnknown
+        }
+
         Text {
             id: pcNameText
             text: model.name
@@ -110,76 +123,64 @@ GridView {
             wrapMode: Text.Wrap
         }
 
-        Text {
-            function getStatusText(model)
-            {
-                if (model.online) {
-                    var text = "<font color=\"green\">Online</font>"
-                    text += "<font color=\"white\"> - </font>"
-                    if (model.paired) {
-                        text += "<font color=\"skyblue\">Paired</font>"
-                    }
-                    else if (model.busy) {
-                        text += "<font color=\"red\">Busy</font>"
-                    }
-                    else {
-                        text += "<font color=\"red\">Not Paired</font>"
-                    }
-                    return text
-                }
-                else {
-                    return "<font color=\"red\">Offline</font>";
+        Menu {
+            id: pcContextMenu
+            MenuItem {
+                text: "Wake PC"
+                onTriggered: computerModel.wakeComputer(index)
+                visible: !model.addPc && !model.online && model.wakeable
+                height: visible ? implicitHeight : 0
+            }
+            MenuItem {
+                text: "Delete PC"
+                onTriggered: {
+                    deletePcDialog.pcIndex = index
+                    // get confirmation first, actual closing is called from the dialog
+                    deletePcDialog.open()
                 }
             }
+        }
 
-            id: pcPairedText
-            text: getStatusText(model)
-            visible: !model.addPc
+        onClicked: {
+            if (model.addPc) {
+                addPcDialog.open()
+            }
+            else if (model.online) {
+                if (model.paired) {
+                    // go to game view
+                    var component = Qt.createComponent("AppView.qml")
+                    var appView = component.createObject(stackView, {"computerIndex": index, "objectName": model.name})
+                    stackView.push(appView)
+                }
+                else {
+                    if (!model.busy) {
+                        var pin = ("0000" + Math.floor(Math.random() * 10000)).slice(-4)
 
-            width: parent.width
-            anchors.top: pcNameText.bottom
-            font.pointSize: 24
-            horizontalAlignment: Text.AlignHCenter
+                        // Kick off pairing in the background
+                        computerModel.pairComputer(index, pin)
+
+                        // Display the pairing dialog
+                        pairDialog.pin = pin
+                        pairDialog.open()
+                    }
+                    else {
+                        // cannot pair while something is streaming or attempting to pair
+                        errorDialog.text = "This PC is currently busy. Make sure to quit any running games and try again."
+                        errorDialog.open()
+                    }
+                }
+            } else if (!model.online) {
+                pcContextMenu.open()
+            }
         }
 
         MouseArea {
             anchors.fill: parent
+            acceptedButtons: Qt.RightButton;
             onClicked: {
-                if (model.addPc) {
-                    addPcDialog.open()
-                }
-                else if (model.online) {
-                    if (model.paired) {
-                        // go to game view
-                        var component = Qt.createComponent("AppView.qml")
-                        var appView = component.createObject(stackView)
-                        appView.computerIndex = index
-                        appView.objectName = model.name
-                        stackView.push(appView)
-                    }
-                    else {
-                        if (!model.busy) {
-                            var pin = ("0000" + Math.floor(Math.random() * 10000)).slice(-4)
-
-                            // Stop polling, since pairing may make GFE unresponsive
-                            ComputerManager.stopPollingAsync()
-
-                            // Kick off pairing in the background
-                            computerModel.pairComputer(index, pin)
-
-                            // Display the pairing dialog
-                            pairDialog.pin = pin
-                            pairDialog.open()
-                        }
-                        else {
-                            // cannot pair while something is streaming or attempting to pair
-                            errorDialog.text = "This PC is currently busy. Make sure to quit any running games and try again."
-                            errorDialog.open()
-                        }
-                    }
-                }
-                else {
-                    // TODO: Wake on LAN and delete PC options
+                // right click
+                if (!model.addPc) { // but only for actual PCs, not the add-pc option
+                    pcContextMenu.open()
                 }
             }
         }
@@ -190,7 +191,12 @@ GridView {
         // don't allow edits to the rest of the window while open
         modality:Qt.WindowModal
         icon: StandardIcon.Critical
-        standardButtons: StandardButton.Ok
+        standardButtons: StandardButton.Ok | StandardButton.Help
+        onHelp: {
+            // Using Setup-Guide here instead of Troubleshooting because it's likely that users
+            // will arrive here by forgetting to enable GameStream or not forwarding ports.
+            Qt.openUrlExternally("https://github.com/moonlight-stream/moonlight-docs/wiki/Setup-Guide");
+        }
     }
 
     MessageDialog {
@@ -206,6 +212,18 @@ GridView {
         }
     }
 
+    MessageDialog {
+        id: waylandDialog
+        modality:Qt.WindowModal
+        icon: StandardIcon.Warning
+        standardButtons: StandardButton.Ok | StandardButton.Help
+        text: "Moonlight does not support hardware acceleration on Wayland. Continuing on Wayland may result in poor streaming performance. " +
+              "Please switch to an X session for optimal performance."
+        onHelp: {
+            Qt.openUrlExternally("https://github.com/moonlight-stream/moonlight-docs/wiki/Fixing-Hardware-Decoding-Problems");
+        }
+    }
+
     MessageDialog {
         id: pairDialog
         // don't allow edits to the rest of the window while open
@@ -218,6 +236,19 @@ GridView {
         }
     }
 
+    MessageDialog {
+        id: deletePcDialog
+        // don't allow edits to the rest of the window while open
+        modality:Qt.WindowModal
+        property int pcIndex : -1;
+        text:"Are you sure you want to remove this PC?"
+        standardButtons: StandardButton.Yes | StandardButton.No
+        onYes: {
+            console.log("deleting PC pairing for PC at index: " + pcIndex)
+            computerModel.deleteComputer(pcIndex);
+        }
+    }
+
     Dialog {
         id: addPcDialog
         property string label: "Enter the IP address of your GameStream PC"

app/gui/QuitSegue.qml

@@ -0,0 +1,78 @@
+import QtQuick 2.0
+import QtQuick.Controls 2.2
+import QtQuick.Dialogs 1.2
+
+import ComputerManager 1.0
+import Session 1.0
+
+Item {
+    property string appName
+    property Session nextSession : null
+    property string nextAppName : ""
+
+    property string stageText : "Quitting " + appName + "..."
+
+    anchors.fill: parent
+
+    // The StackView will trigger a visibility change when
+    // we're pushed onto it, causing our onVisibleChanged
+    // routine to run, but only if we start as invisible
+    visible: false
+
+    function quitAppCompleted(error)
+    {
+        // Display a failed dialog if we got an error
+        if (error !== undefined) {
+            errorDialog.text = error
+            errorDialog.open()
+        }
+
+        // Exit this view
+        stackView.pop()
+
+        // If we're supposed to launch another game after this, do so now
+        if (error === undefined && nextSession !== null) {
+            var component = Qt.createComponent("StreamSegue.qml")
+            var segue = component.createObject(stackView, {"appName": nextAppName, "session": nextSession})
+            stackView.push(segue)
+        }
+    }
+
+    onVisibleChanged: {
+        if (visible) {
+            // Connect the quit completion signal
+            ComputerManager.quitAppCompleted.connect(quitAppCompleted)
+        }
+        else {
+            // Disconnect the signal
+            ComputerManager.quitAppCompleted.disconnect(quitAppCompleted)
+        }
+    }
+
+    Row {
+        anchors.centerIn: parent
+        spacing: 5
+
+        BusyIndicator {
+            id: stageSpinner
+        }
+
+        Label {
+            id: stageLabel
+            height: stageSpinner.height
+            text: stageText
+            font.pointSize: 20
+            verticalAlignment: Text.AlignVCenter
+
+            wrapMode: Text.Wrap
+            color: "white"
+        }
+    }
+
+    MessageDialog {
+        id: errorDialog
+        modality:Qt.WindowModal
+        icon: StandardIcon.Critical
+        standardButtons: StandardButton.Ok
+    }
+}

app/gui/SettingsView.qml

@@ -2,6 +2,7 @@ import QtQuick 2.9
 import QtQuick.Controls 2.2
 
 import StreamingPreferences 1.0
+import ComputerManager 1.0
 
 ScrollView {
     id: settingsPage
@@ -43,7 +44,7 @@ ScrollView {
                 Label {
                     width: parent.width
                     id: resFPSdesc
-                    text: qsTr("Setting values too high for your PC may cause lag, stuttering, or errors")
+                    text: qsTr("Setting values too high for your PC may cause lag, stuttering, or errors.")
                     font.pointSize: 9
                     wrapMode: Text.Wrap
                     color: "white"
@@ -55,25 +56,81 @@ ScrollView {
                     ComboBox {
                         // ignore setting the index at first, and actually set it when the component is loaded
                         Component.onCompleted: {
+                            // Add native resolutions for all attached displays
+                            var done = false
+                            for (var displayIndex = 0; !done; displayIndex++) {
+                                for (var displayResIndex = 0; displayResIndex < 2; displayResIndex++) {
+                                    var screenRect;
+
+                                    // Some platforms have different desktop resolutions
+                                    // and native resolutions (like macOS with Retina displays)
+                                    if (displayResIndex == 0) {
+                                        screenRect = prefs.getDesktopResolution(displayIndex)
+                                    }
+                                    else {
+                                        screenRect = prefs.getNativeResolution(displayIndex)
+                                    }
+
+                                    if (screenRect.width === 0) {
+                                        // Exceeded max count of displays
+                                        done = true
+                                        break
+                                    }
+
+                                    var indexToAdd = 0
+                                    for (var j = 0; j < resolutionComboBox.count; j++) {
+                                        var existing_width = parseInt(resolutionListModel.get(j).video_width);
+                                        var existing_height = parseInt(resolutionListModel.get(j).video_height);
+
+                                        if (screenRect.width === existing_width && screenRect.height === existing_height) {
+                                            // Duplicate entry, skip
+                                            indexToAdd = -1
+                                            break
+                                        }
+                                        else if (screenRect.width * screenRect.height > existing_width * existing_height) {
+                                            // Candidate entrypoint after this entry
+                                            indexToAdd = j + 1
+                                        }
+                                    }
+
+                                    // Insert this display's resolution if it's not a duplicate
+                                    if (indexToAdd >= 0) {
+                                        resolutionListModel.insert(indexToAdd,
+                                                                   {
+                                                                       "text": "Native ("+screenRect.width+"x"+screenRect.height+")",
+                                                                       "video_width": ""+screenRect.width,
+                                                                       "video_height": ""+screenRect.height
+                                                                   })
+                                    }
+                                }
+                            }
+
                             // load the saved width/height, and iterate through the ComboBox until a match is found
                             // and set it to that index.
                             var saved_width = prefs.width
                             var saved_height = prefs.height
                             currentIndex = 0
-                            for (var i = 0; i < resolutionComboBox.count; i++) {
+                            for (var i = 0; i < resolutionListModel.count; i++) {
                                 var el_width = parseInt(resolutionListModel.get(i).video_width);
                                 var el_height = parseInt(resolutionListModel.get(i).video_height);
-                                if (saved_width === el_width && saved_height === el_height) {
+
+                                // Pick the highest value lesser or equal to the saved resolution
+                                if (saved_width * saved_height >= el_width * el_height) {
                                     currentIndex = i
                                 }
                             }
+
+                            // Persist the selected value
+                            activated(currentIndex)
                         }
 
                         id: resolutionComboBox
-                        font.pointSize: 9
+                        width: 200
                         textRole: "text"
                         model: ListModel {
                             id: resolutionListModel
+                            // Other elements may be added at runtime
+                            // based on attached display resolution
                             ListElement {
                                 text: "720p"
                                 video_width: "1280"
@@ -97,58 +154,97 @@ ScrollView {
                         }
                         // ::onActivated must be used, as it only listens for when the index is changed by a human
                         onActivated : {
-                            prefs.width = parseInt(resolutionListModel.get(currentIndex).video_width)
-                            prefs.height = parseInt(resolutionListModel.get(currentIndex).video_height)
+                            var selectedWidth = parseInt(resolutionListModel.get(currentIndex).video_width)
+                            var selectedHeight = parseInt(resolutionListModel.get(currentIndex).video_height)
 
-                            prefs.bitrateKbps = prefs.getDefaultBitrate(prefs.width, prefs.height, prefs.fps);
-                            slider.value = prefs.bitrateKbps
+                            // Only modify the bitrate if the values actually changed
+                            if (prefs.width !== selectedWidth || prefs.height !== selectedHeight) {
+                                prefs.width = selectedWidth
+                                prefs.height = selectedHeight
+
+                                prefs.bitrateKbps = prefs.getDefaultBitrate(prefs.width, prefs.height, prefs.fps);
+                                slider.value = prefs.bitrateKbps
+                            }
                         }
                     }
 
                     ComboBox {
-                        // ignore setting the index at first, and actually set it when the component is loaded
-                        Component.onCompleted: {
+                        function createModel() {
+                            var fpsListModel = Qt.createQmlObject('import QtQuick 2.0; ListModel {}', parent, '')
+
                             // Get the max supported FPS on this system
                             var max_fps = prefs.getMaximumStreamingFrameRate();
 
+                            // Default entries
+                            fpsListModel.append({"text": "30 FPS", "video_fps": "30"})
+                            fpsListModel.append({"text": "60 FPS", "video_fps": "60"})
+
+                            // Add unsupported FPS values that come before the display max FPS
+                            if (prefs.unsupportedFps) {
+                                if (max_fps > 90) {
+                                    fpsListModel.append({"text": "90 FPS (Unsupported)", "video_fps": "90"})
+                                }
+                                if (max_fps > 120) {
+                                    fpsListModel.append({"text": "120 FPS (Unsupported)", "video_fps": "120"})
+                                }
+                            }
+
                             // Use 64 as the cutoff for adding a separate option to
                             // handle wonky displays that report just over 60 Hz.
                             if (max_fps > 64) {
                                 fpsListModel.append({"text": max_fps+" FPS", "video_fps": ""+max_fps})
                             }
 
+                            // Add unsupported FPS values that come after the display max FPS
+                            if (prefs.unsupportedFps) {
+                                if (max_fps < 90) {
+                                    fpsListModel.append({"text": "90 FPS (Unsupported)", "video_fps": "90"})
+                                }
+                                if (max_fps < 120) {
+                                    fpsListModel.append({"text": "120 FPS (Unsupported)", "video_fps": "120"})
+                                }
+                            }
+
+                            return fpsListModel
+                        }
+
+                        function reinitialize() {
+                            model = createModel()
+
                             var saved_fps = prefs.fps
                             currentIndex = 0
-                            for (var i = 0; i < fpsComboBox.count; i++) {
-                                var el_fps = parseInt(fpsListModel.get(i).video_fps);
-                                if (el_fps === saved_fps) {
+                            for (var i = 0; i < model.count; i++) {
+                                var el_fps = parseInt(model.get(i).video_fps);
+
+                                // Pick the highest value lesser or equal to the saved FPS
+                                if (saved_fps >= el_fps) {
                                     currentIndex = i
                                 }
                             }
+
+                            // Persist the selected value
+                            activated(currentIndex)
+                        }
+
+                        // ignore setting the index at first, and actually set it when the component is loaded
+                        Component.onCompleted: {
+                            reinitialize()
                         }
 
                         id: fpsComboBox
-                        font.pointSize: 9
                         textRole: "text"
-                        model: ListModel {
-                            id: fpsListModel
-                            ListElement {
-                                text: "30 FPS"
-                                video_fps: "30"
-                            }
-                            ListElement {
-                                text: "60 FPS"
-                                video_fps: "60"
-                            }
-                            // A higher value may be added at runtime
-                            // based on the attached display refresh rate
-                        }
+                        width: 250
                         // ::onActivated must be used, as it only listens for when the index is changed by a human
                         onActivated : {
-                            prefs.fps = parseInt(fpsListModel.get(currentIndex).video_fps)
+                            var selectedFps = parseInt(model.get(currentIndex).video_fps)
 
-                            prefs.bitrateKbps = prefs.getDefaultBitrate(prefs.width, prefs.height, prefs.fps);
-                            slider.value = prefs.bitrateKbps
+                            // Only modify the bitrate if the values actually changed
+                            if (prefs.fps !== selectedFps) {
+                                prefs.fps = selectedFps
+
+                                prefs.bitrateKbps = prefs.getDefaultBitrate(prefs.width, prefs.height, prefs.fps);
+                                slider.value = prefs.bitrateKbps
+                            }
                         }
                     }
                 }
@@ -190,13 +286,60 @@ ScrollView {
                     }
                 }
 
+                Label {
+                    width: parent.width
+                    id: windowModeTitle
+                    text: qsTr("Display mode")
+                    font.pointSize: 12
+                    wrapMode: Text.Wrap
+                    color: "white"
+                }
+
+                ComboBox {
+                    // ignore setting the index at first, and actually set it when the component is loaded
+                    Component.onCompleted: {
+                        var savedWm = prefs.windowMode
+                        currentIndex = 0
+                        for (var i = 0; i < windowModeListModel.count; i++) {
+                             var thisWm = windowModeListModel.get(i).val;
+                             if (savedWm === thisWm) {
+                                 currentIndex = i
+                                 break
+                             }
+                        }
+                        activated(currentIndex)
+                    }
+
+                    id: windowModeComboBox
+                    width: Math.min(bitrateDesc.implicitWidth, parent.width)
+                    textRole: "text"
+                    model: ListModel {
+                        id: windowModeListModel
+                        ListElement {
+                            text: "Full-screen (Recommended)"
+                            val: StreamingPreferences.WM_FULLSCREEN
+                        }
+                        ListElement {
+                            text: "Borderless windowed"
+                            val: StreamingPreferences.WM_FULLSCREEN_DESKTOP
+                        }
+                        ListElement {
+                            text: "Windowed"
+                            val: StreamingPreferences.WM_WINDOWED
+                        }
+                    }
+                    onActivated: {
+                        prefs.windowMode = windowModeListModel.get(currentIndex).val
+                    }
+                }
+
                 CheckBox {
-                    id: fullScreenCheck
-                    text: "<font color=\"white\">Full-screen</font>"
+                    id: vsyncCheck
+                    text: "<font color=\"white\">Enable V-Sync</font>"
                     font.pointSize:  12
-                    checked: prefs.fullScreen
+                    checked: prefs.enableVsync
                     onCheckedChanged: {
-                        prefs.fullScreen = checked
+                        prefs.enableVsync = checked
                     }
                 }
             }
@@ -228,17 +371,18 @@ ScrollView {
                     Component.onCompleted: {
                         var saved_audio = prefs.audioConfig
                         currentIndex = 0
-                        for(var i = 0; i < audioListModel.count; i++) {
-                            var el_audio= audioListModel.get(i).val;
-                          if(saved_audio === el_audio) {
-                              currentIndex = i
-                          }
+                        for (var i = 0; i < audioListModel.count; i++) {
+                            var el_audio = audioListModel.get(i).val;
+                            if (saved_audio === el_audio) {
+                                currentIndex = i
+                                break
+                            }
                         }
+                        activated(currentIndex)
                     }
 
                     id: audioComboBox
                     width: Math.min(bitrateDesc.implicitWidth, parent.width)
-                    font.pointSize: 9
                     textRole: "text"
                     model: ListModel {
                         id: audioListModel
@@ -275,10 +419,10 @@ ScrollView {
             id: gamepadSettingsGroupBox
             width: (parent.width - parent.padding)
             padding: 12
-            title: "<font color=\"skyblue\">Gamepad Settings</font>"
+            title: "<font color=\"skyblue\">Input Settings</font>"
             font.pointSize: 12
 
-            Column {
+            Row {
                 anchors.fill: parent
                 spacing: 5
 
@@ -291,6 +435,16 @@ ScrollView {
                         prefs.multiController = checked
                     }
                 }
+
+                CheckBox {
+                    id: mouseAccelerationCheck
+                    text: "<font color=\"white\">Enable mouse acceleration</font>"
+                    font.pointSize:  12
+                    checked: prefs.mouseAcceleration
+                    onCheckedChanged: {
+                        prefs.mouseAcceleration = checked
+                    }
+                }
             }
         }
 
@@ -301,13 +455,15 @@ ScrollView {
             title: "<font color=\"skyblue\">Host Settings</font>"
             font.pointSize: 12
 
-            Column {
+            Row {
                 anchors.fill: parent
                 spacing: 5
 
                 CheckBox {
                     id: optimizeGameSettingsCheck
                     text: "<font color=\"white\">Optimize game settings</font>"
+                    // HACK: Match width of the other checkbox to make the UI not look bad
+                    width: multiControllerCheck.width
                     font.pointSize:  12
                     checked: prefs.gameOptimizations
                     onCheckedChanged: {
@@ -352,17 +508,18 @@ ScrollView {
                     Component.onCompleted: {
                         var saved_vds = prefs.videoDecoderSelection
                         currentIndex = 0
-                        for(var i = 0; i < decoderListModel.count; i++) {
+                        for (var i = 0; i < decoderListModel.count; i++) {
                             var el_vds = decoderListModel.get(i).val;
-                          if(saved_vds === el_vds) {
-                              currentIndex = i
-                          }
+                            if (saved_vds === el_vds) {
+                                currentIndex = i
+                                break
+                            }
                         }
+                        activated(currentIndex)
                     }
 
                     id: decoderComboBox
                     width: Math.min(bitrateDesc.implicitWidth, parent.width)
-                    font.pointSize: 9
                     textRole: "text"
                     model: ListModel {
                         id: decoderListModel
@@ -401,15 +558,16 @@ ScrollView {
                         currentIndex = 0
                         for(var i = 0; i < codecListModel.count; i++) {
                             var el_vcc = codecListModel.get(i).val;
-                          if(saved_vcc === el_vcc) {
-                              currentIndex = i
-                          }
+                            if (saved_vcc === el_vcc) {
+                                currentIndex = i
+                                break
+                            }
                         }
+                        activated(currentIndex)
                     }
 
                     id: codecComboBox
                     width: Math.min(bitrateDesc.implicitWidth, parent.width)
-                    font.pointSize: 9
                     textRole: "text"
                     model: ListModel {
                         id: codecListModel
@@ -439,6 +597,39 @@ ScrollView {
                     }
                 }
 
+                CheckBox {
+                    id: unlockUnsupportedFps
+                    text: "<font color=\"white\">Unlock unsupported FPS options</font>"
+                    font.pointSize: 12
+                    checked: prefs.unsupportedFps
+                    onCheckedChanged: {
+                        prefs.unsupportedFps = checked
+
+                        // The selectable FPS values depend on whether
+                        // this option is enabled or not
+                        fpsComboBox.reinitialize()
+                    }
+                }
+
+                CheckBox {
+                    id: enableMdns
+                    text: "<font color=\"white\">Automatically find PCs on the local network (Recommended)</font>"
+                    font.pointSize: 12
+                    checked: prefs.enableMdns
+                    onCheckedChanged: {
+                        prefs.enableMdns = checked
+
+                        // We must save the updated preference to ensure
+                        // ComputerManager can observe the change internally.
+                        prefs.save()
+
+                        // Restart polling so the mDNS change takes effect
+                        if (window.pollingActive) {
+                            ComputerManager.stopPollingAsync()
+                            ComputerManager.startPolling()
+                        }
+                    }
+                }
             }
         }
     }

app/gui/StreamSegue.qml

@@ -1,13 +1,14 @@
 import QtQuick 2.0
 import QtQuick.Controls 2.2
-import QtQuick.Dialogs 1.3
+import QtQuick.Dialogs 1.2
+import QtQuick.Window 2.2
 
 import Session 1.0
 
 Item {
     property Session session
-    property string appname
-    property string stageText : "Starting " + appname + "..."
+    property string appName
+    property string stageText : "Starting " + appName + "..."
 
     anchors.fill: parent
 
@@ -47,7 +48,13 @@ Item {
 
     function displayLaunchWarning(text)
     {
-        // TODO: toast
+        // This toast appears for 3 seconds, just shorter than how long
+        // Session will wait for it to be displayed. This gives it time
+        // to transition to invisible before continuing.
+        var toast = Qt.createQmlObject('import QtQuick.Controls 2.3; ToolTip {}', parent, '')
+        toast.text = text
+        toast.timeout = 3000
+        toast.visible = true
     }
 
     onVisibleChanged: {
@@ -63,7 +70,7 @@ Item {
             session.displayLaunchWarning.connect(displayLaunchWarning)
 
             // Run the streaming session to completion
-            session.exec()
+            session.exec(Screen.virtualX, Screen.virtualY)
 
             // Show the Qt window again after streaming
             window.visible = true
@@ -97,10 +104,25 @@ Item {
         }
     }
 
+    Label {
+        text: "Tip: Press Ctrl+Alt+Shift+Q to disconnect your session"
+        anchors.bottom: parent.bottom
+        anchors.bottomMargin: 50
+        anchors.horizontalCenter: parent.horizontalCenter
+        font.pointSize: 18
+        verticalAlignment: Text.AlignVCenter
+
+        wrapMode: Text.Wrap
+        color: "white"
+    }
+
     MessageDialog {
         id: errorDialog
         modality:Qt.WindowModal
         icon: StandardIcon.Critical
-        standardButtons: StandardButton.Ok
+        standardButtons: StandardButton.Ok | StandardButton.Help
+        onHelp: {
+            Qt.openUrlExternally("https://github.com/moonlight-stream/moonlight-docs/wiki/Troubleshooting");
+        }
     }
 }

app/gui/appmodel.cpp

@@ -19,6 +19,32 @@ void AppModel::initialize(ComputerManager* computerManager, int computerIndex)
     m_CurrentGameId = m_Computer->currentGameId;
 }
 
+int AppModel::getRunningAppIndex()
+{
+    if (m_CurrentGameId != 0) {
+        for (int i = 0; i < m_Apps.count(); i++) {
+            if (m_Apps[i].id == m_CurrentGameId) {
+                return i;
+            }
+        }
+    }
+
+    return -1;
+}
+
+QString AppModel::getRunningAppName()
+{
+    if (m_CurrentGameId != 0) {
+        for (int i = 0; i < m_Apps.count(); i++) {
+            if (m_Apps[i].id == m_CurrentGameId) {
+                return m_Apps[i].name;
+            }
+        }
+    }
+
+    return nullptr;
+}
+
 Session* AppModel::createSessionForApp(int appIndex)
 {
     Q_ASSERT(appIndex < m_Apps.count());
@@ -70,6 +96,11 @@ QHash<int, QByteArray> AppModel::roleNames() const
     return names;
 }
 
+void AppModel::quitRunningApp()
+{
+    m_ComputerManager->quitRunningApp(m_Computer);
+}
+
 void AppModel::handleComputerStateChanged(NvComputer* computer)
 {
     // Ignore updates for computers that aren't ours
@@ -77,6 +108,14 @@ void AppModel::handleComputerStateChanged(NvComputer* computer)
         return;
     }
 
+    // If the computer has gone offline or we've been unpaired,
+    // signal the UI so we can go back to the PC view.
+    if (m_Computer->state == NvComputer::CS_OFFLINE ||
+            m_Computer->pairState == NvComputer::PS_NOT_PAIRED) {
+        emit computerLost();
+        return;
+    }
+
     // First, process additions/removals from the app list. This
     // is required because the new game may now be running, so
     // we can't check that first.

app/gui/appmodel.h

@@ -25,6 +25,12 @@ public:
 
     Q_INVOKABLE Session* createSessionForApp(int appIndex);
 
+    Q_INVOKABLE int getRunningAppIndex();
+
+    Q_INVOKABLE QString getRunningAppName();
+
+    Q_INVOKABLE void quitRunningApp();
+
     QVariant data(const QModelIndex &index, int role) const override;
 
     int rowCount(const QModelIndex &parent) const override;
@@ -36,6 +42,9 @@ private slots:
 
     void handleBoxArtLoaded(NvComputer* computer, NvApp app, QUrl image);
 
+signals:
+    void computerLost();
+
 private:
     NvComputer* m_Computer;
     BoxArtManager m_BoxArtManager;

app/gui/computermodel.cpp

@@ -1,5 +1,7 @@
 #include "computermodel.h"
 
+#include <QThreadPool>
+
 ComputerModel::ComputerModel(QObject* object)
     : QAbstractListModel(object) {}
 
@@ -46,8 +48,12 @@ QVariant ComputerModel::data(const QModelIndex& index, int role) const
         return computer->pairState == NvComputer::PS_PAIRED;
     case BusyRole:
         return computer->currentGameId != 0;
+    case WakeableRole:
+        return !computer->macAddress.isEmpty();
     case AddPcRole:
         return false;
+    case StatusUnknownRole:
+        return computer->state == NvComputer::CS_UNKNOWN;
     default:
         return QVariant();
     }
@@ -74,6 +80,8 @@ QHash<int, QByteArray> ComputerModel::roleNames() const
     names[PairedRole] = "paired";
     names[BusyRole] = "busy";
     names[AddPcRole] = "addPc";
+    names[WakeableRole] = "wakeable";
+    names[StatusUnknownRole] = "statusUnknown";
 
     return names;
 }
@@ -113,11 +121,27 @@ void ComputerModel::deleteComputer(int computerIndex)
     endRemoveRows();
 }
 
-bool ComputerModel::wakeComputer(int computerIndex)
+class DeferredWakeHostTask : public QRunnable
+{
+public:
+    DeferredWakeHostTask(NvComputer* computer)
+        : m_Computer(computer) {}
+
+    void run()
+    {
+        m_Computer->wake();
+    }
+
+private:
+    NvComputer* m_Computer;
+};
+
+void ComputerModel::wakeComputer(int computerIndex)
 {
     Q_ASSERT(computerIndex < m_Computers.count());
 
-    return m_Computers[computerIndex]->wake();
+    DeferredWakeHostTask* wakeTask = new DeferredWakeHostTask(m_Computers[computerIndex]);
+    QThreadPool::globalInstance()->start(wakeTask);
 }
 
 void ComputerModel::pairComputer(int computerIndex, QString pin)
@@ -129,7 +153,7 @@ void ComputerModel::pairComputer(int computerIndex, QString pin)
 
 void ComputerModel::handlePairingCompleted(NvComputer*, QString error)
 {
-    emit pairingCompleted(error.isNull() ? QVariant() : error);
+    emit pairingCompleted(error.isEmpty() ? QVariant() : error);
 }
 
 void ComputerModel::handleComputerStateChanged(NvComputer* computer)

app/gui/computermodel.h

@@ -13,6 +13,8 @@ class ComputerModel : public QAbstractListModel
         OnlineRole,
         PairedRole,
         BusyRole,
+        WakeableRole,
+        StatusUnknownRole,
         AddPcRole
     };
 
@@ -32,7 +34,7 @@ public:
 
     Q_INVOKABLE void pairComputer(int computerIndex, QString pin);
 
-    Q_INVOKABLE bool wakeComputer(int computerIndex);
+    Q_INVOKABLE void wakeComputer(int computerIndex);
 
     Q_INVOKABLE Session* createSessionForCurrentGame(int computerIndex);
 

app/gui/main.qml

@@ -1,10 +1,16 @@
 import QtQuick 2.9
 import QtQuick.Controls 2.2
 import QtQuick.Layouts 1.3
+import QtQuick.Window 2.2
 
 import QtQuick.Controls.Material 2.1
 
+import ComputerManager 1.0
+import AutoUpdateChecker 1.0
+
 ApplicationWindow {
+    property bool pollingActive: false
+
     id: window
     visible: true
     width: 1280
@@ -19,6 +25,24 @@ ApplicationWindow {
         anchors.fill: parent
     }
 
+    onVisibilityChanged: {
+        // We don't want to just use 'active' here because that will stop polling if
+        // we lose focus, which might be overzealous for users with multiple screens
+        // where we may be clearly visible on the other display. Ideally we'll poll
+        // only if the window is visible to the user (not if obscured by other windows),
+        // but it seems difficult to do this portably.
+        var shouldPoll = visibility !== Window.Minimized && visibility !== Window.Hidden
+
+        if (shouldPoll && !pollingActive) {
+            ComputerManager.startPolling()
+            pollingActive = true
+        }
+        else if (!shouldPoll && pollingActive) {
+            ComputerManager.stopPollingAsync()
+            pollingActive = false
+        }
+    }
+
     function navigateTo(url, objectName)
     {
         var existingItem = stackView.find(function(item, index) {
@@ -37,6 +61,8 @@ ApplicationWindow {
 
     header: ToolBar {
         id: toolBar
+        anchors.topMargin: 5
+        anchors.bottomMargin: 5
 
         RowLayout {
             spacing: 20
@@ -46,14 +72,19 @@ ApplicationWindow {
                 // Only make the button visible if the user has navigated somewhere.
                 visible: stackView.depth > 1
 
-                icon.source: "qrc:/res/arrow_left.svg"
-                onClicked: stackView.pop()
-
-                Menu {
-                    id: backButton
-                    x: parent.width - width
-                    transformOrigin: Menu.TopRight
+                // FIXME: We're using an Image here rather than icon.source because
+                // icons don't work on Qt 5.9 LTS.
+                Image {
+                    source: "qrc:/res/arrow_left.svg"
+                    anchors.centerIn: parent
+                    sourceSize {
+                        // The icon should be square so use the height as the width too
+                        width: toolBar.height - toolBar.anchors.bottomMargin - toolBar.anchors.topMargin
+                        height: toolBar.height - toolBar.anchors.bottomMargin - toolBar.anchors.topMargin
+                    }
                 }
+
+                onClicked: stackView.pop()
             }
 
             Label {
@@ -67,41 +98,99 @@ ApplicationWindow {
             }
 
             ToolButton {
-                icon.source: "qrc:/res/question_mark.svg"
+                property string browserUrl: ""
+
+                id: updateButton
+
+                Image {
+                    source: "qrc:/res/update.svg"
+                    anchors.centerIn: parent
+                    sourceSize {
+                        width: toolBar.height - toolBar.anchors.bottomMargin - toolBar.anchors.topMargin
+                        height: toolBar.height - toolBar.anchors.bottomMargin - toolBar.anchors.topMargin
+                    }
+                }
+
+                ToolTip.delay: 1000
+                ToolTip.timeout: 3000
+                ToolTip.visible: hovered
+                ToolTip.text: "Update available for Moonlight"
+
+                // Invisible until we get a callback notifying us that
+                // an update is available
+                visible: false
+
+                onClicked: Qt.openUrlExternally(browserUrl);
+
+
+                function updateAvailable(url)
+                {
+                    updateButton.browserUrl = url
+                    updateButton.visible = true
+                }
+
+                Component.onCompleted: {
+                    AutoUpdateChecker.onUpdateAvailable.connect(updateAvailable)
+                    AutoUpdateChecker.start()
+                }
+            }
+
+            ToolButton {
+                Image {
+                    source: "qrc:/res/question_mark.svg"
+                    anchors.centerIn: parent
+                    sourceSize {
+                        width: toolBar.height - toolBar.anchors.bottomMargin - toolBar.anchors.topMargin
+                        height: toolBar.height - toolBar.anchors.bottomMargin - toolBar.anchors.topMargin
+                    }
+                }
+
+                ToolTip.delay: 1000
+                ToolTip.timeout: 3000
+                ToolTip.visible: hovered
+                ToolTip.text: "Help"
 
                 // TODO need to make sure browser is brought to foreground.
                 onClicked: Qt.openUrlExternally("https://github.com/moonlight-stream/moonlight-docs/wiki/Setup-Guide");
-
-                Menu {
-                    id: helpButton
-                    x: parent.width
-                    transformOrigin: Menu.TopRight
-                }
             }
 
             ToolButton {
                 // TODO: Implement gamepad mapping then unhide this button
                 visible: false
 
-                icon.source: "qrc:/res/ic_videogame_asset_white_48px.svg"
-                onClicked: navigateTo("qrc:/gui/GamepadMapper.qml", "Gamepad Mapping")
+                ToolTip.delay: 1000
+                ToolTip.timeout: 3000
+                ToolTip.visible: hovered
+                ToolTip.text: "Gamepad Mapper"
 
-                Menu {
-                    id: gamepadMappingMenu
-                    x: parent.width
-                    transformOrigin: Menu.TopRight
+                Image {
+                    source: "qrc:/res/ic_videogame_asset_white_48px.svg"
+                    anchors.centerIn: parent
+                    sourceSize {
+                        width: toolBar.height - toolBar.anchors.bottomMargin - toolBar.anchors.topMargin
+                        height: toolBar.height - toolBar.anchors.bottomMargin - toolBar.anchors.topMargin
+                    }
                 }
+
+                onClicked: navigateTo("qrc:/gui/GamepadMapper.qml", "Gamepad Mapping")
             }
 
             ToolButton {
-                icon.source: "qrc:/res/settings.svg"
+                Image {
+                    source: "qrc:/res/settings.svg"
+                    anchors.centerIn: parent
+                    sourceSize {
+                        width: toolBar.height - toolBar.anchors.bottomMargin - toolBar.anchors.topMargin
+                        height: toolBar.height - toolBar.anchors.bottomMargin - toolBar.anchors.topMargin
+                    }
+                }
+
                 onClicked: navigateTo("qrc:/gui/SettingsView.qml", "Settings")
 
-                Menu {
-                    id: optionsMenu
-                    x: parent.width
-                    transformOrigin: Menu.TopRight
-                }
+                ToolTip.delay: 1000
+                ToolTip.timeout: 3000
+                ToolTip.visible: hovered
+                ToolTip.text: "Settings"
             }
         }
     }

app/main.cpp

@@ -11,8 +11,14 @@
 #define SDL_MAIN_HANDLED
 #include <SDL.h>
 
+#ifdef HAVE_FFMPEG
+#include "streaming/video/ffmpeg.h"
+#endif
+
+#include "path.h"
 #include "gui/computermodel.h"
 #include "gui/appmodel.h"
+#include "backend/autoupdatechecker.h"
 #include "streaming/session.hpp"
 #include "settings/streamingpreferences.h"
 
@@ -60,7 +66,8 @@ void logToLoggerStream(QString& message)
     }
 #endif
 
-    s_LoggerStream << message << endl;
+    s_LoggerStream << message;
+    s_LoggerStream.flush();
 }
 
 void sdlLogToDiskHandler(void*, int category, SDL_LogPriority priority, const char* message)
@@ -92,7 +99,7 @@ void sdlLogToDiskHandler(void*, int category, SDL_LogPriority priority, const ch
     }
 
     QTime logTime = QTime::fromMSecsSinceStartOfDay(s_LoggerTime.elapsed());
-    QString txt = QString("%1 - SDL %2 (%3): %4").arg(logTime.toString()).arg(priorityTxt).arg(category).arg(message);
+    QString txt = QString("%1 - SDL %2 (%3): %4\n").arg(logTime.toString()).arg(priorityTxt).arg(category).arg(message);
 
     logToLoggerStream(txt);
 }
@@ -120,18 +127,116 @@ void qtLogToDiskHandler(QtMsgType type, const QMessageLogContext&, const QString
     }
 
     QTime logTime = QTime::fromMSecsSinceStartOfDay(s_LoggerTime.elapsed());
-    QString txt = QString("%1 - Qt %2: %3").arg(logTime.toString()).arg(typeTxt).arg(msg);
+    QString txt = QString("%1 - Qt %2: %3\n").arg(logTime.toString()).arg(typeTxt).arg(msg);
+
+    logToLoggerStream(txt);
+}
+
+#ifdef HAVE_FFMPEG
+
+void ffmpegLogToDiskHandler(void* ptr, int level, const char* fmt, va_list vl)
+{
+    char lineBuffer[1024];
+    static int printPrefix = 1;
+
+    if ((level & 0xFF) > av_log_get_level()) {
+        return;
+    }
+
+    av_log_format_line(ptr, level, fmt, vl, lineBuffer, sizeof(lineBuffer), &printPrefix);
+
+    QTime logTime = QTime::fromMSecsSinceStartOfDay(s_LoggerTime.elapsed());
+    QString txt = QString("%1 - FFmpeg: %2").arg(logTime.toString()).arg(lineBuffer);
 
     logToLoggerStream(txt);
 }
 
 #endif
 
+#endif
+
+#ifdef Q_OS_WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#include <DbgHelp.h>
+
+static UINT s_HitUnhandledException = 0;
+
+LONG WINAPI UnhandledExceptionHandler(struct _EXCEPTION_POINTERS *ExceptionInfo)
+{
+    // Only write a dump for the first unhandled exception
+    if (InterlockedCompareExchange(&s_HitUnhandledException, 1, 0) != 0) {
+        return EXCEPTION_CONTINUE_SEARCH;
+    }
+
+    WCHAR dmpFileName[MAX_PATH];
+    swprintf_s(dmpFileName, L"%ls\\Moonlight-%I64u.dmp",
+               (PWCHAR)QDir::toNativeSeparators(Path::getLogDir()).utf16(), QDateTime::currentSecsSinceEpoch());
+    QString qDmpFileName = QString::fromUtf16((unsigned short*)dmpFileName);
+    HANDLE dumpHandle = CreateFileW(dmpFileName, GENERIC_WRITE, 0, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
+    if (dumpHandle != INVALID_HANDLE_VALUE) {
+        MINIDUMP_EXCEPTION_INFORMATION info;
+
+        info.ThreadId = GetCurrentThreadId();
+        info.ExceptionPointers = ExceptionInfo;
+        info.ClientPointers = FALSE;
+
+        DWORD typeFlags = MiniDumpWithIndirectlyReferencedMemory |
+                MiniDumpIgnoreInaccessibleMemory |
+                MiniDumpWithUnloadedModules |
+                MiniDumpWithThreadInfo;
+
+        if (MiniDumpWriteDump(GetCurrentProcess(),
+                               GetCurrentProcessId(),
+                               dumpHandle,
+                               (MINIDUMP_TYPE)typeFlags,
+                               &info,
+                               nullptr,
+                               nullptr)) {
+            qCritical() << "Unhandled exception! Minidump written to:" << qDmpFileName;
+        }
+        else {
+            qCritical() << "Unhandled exception! Failed to write dump:" << GetLastError();
+        }
+
+        CloseHandle(dumpHandle);
+    }
+    else {
+        qCritical() << "Unhandled exception! Failed to open dump file:" << qDmpFileName << "with error" << GetLastError();
+    }
+
+    // Let the program crash and WER collect a dump
+    return EXCEPTION_CONTINUE_SEARCH;
+}
+
+#endif
+
 int main(int argc, char *argv[])
 {
+    // Set these here to allow us to use the default QSettings constructor.
+    // These also ensure that our cache directory is named correctly. As such,
+    // it is critical that these be called before Path::initialize().
+    QCoreApplication::setOrganizationName("Moonlight Game Streaming Project");
+    QCoreApplication::setOrganizationDomain("moonlight-stream.com");
+    QCoreApplication::setApplicationName("Moonlight");
+
+    if (QFile(QDir::currentPath() + "/portable.dat").exists()) {
+        qInfo() << "Running in portable mode from:" << QDir::currentPath();
+        QSettings::setDefaultFormat(QSettings::IniFormat);
+        QSettings::setPath(QSettings::IniFormat, QSettings::UserScope, QDir::currentPath());
+        QSettings::setPath(QSettings::IniFormat, QSettings::SystemScope, QDir::currentPath());
+
+        // Initialize paths for portable mode
+        Path::initialize(true);
+    }
+    else {
+        // Initialize paths for standard installation
+        Path::initialize(false);
+    }
+
 #ifdef USE_CUSTOM_LOGGER
 #ifdef LOG_TO_FILE
-    QDir tempDir(QDir::tempPath());
+    QDir tempDir(Path::getLogDir());
     s_LoggerFile = new QFile(tempDir.filePath(QString("Moonlight-%1.log").arg(QDateTime::currentSecsSinceEpoch())));
     if (s_LoggerFile->open(QIODevice::WriteOnly)) {
         qInfo() << "Redirecting log output to " << s_LoggerFile->fileName();
@@ -142,6 +247,16 @@ int main(int argc, char *argv[])
     s_LoggerTime.start();
     qInstallMessageHandler(qtLogToDiskHandler);
     SDL_LogSetOutputFunction(sdlLogToDiskHandler, nullptr);
+
+#ifdef HAVE_FFMPEG
+    av_log_set_callback(ffmpegLogToDiskHandler);
+#endif
+
+#endif
+
+#ifdef Q_OS_WIN32
+    // Create a crash dump when we crash on Windows
+    SetUnhandledExceptionFilter(UnhandledExceptionHandler);
 #endif
 
     QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
@@ -150,10 +265,11 @@ int main(int argc, char *argv[])
     // password prompts on macOS.
     qputenv("QT_SSL_USE_TEMPORARY_KEYCHAIN", QByteArray("1"));
 
-    // Set these here to allow us to use the default QSettings constructor
-    QCoreApplication::setOrganizationName("Moonlight Game Streaming Project");
-    QCoreApplication::setOrganizationDomain("moonlight-stream.com");
-    QCoreApplication::setApplicationName("Moonlight");
+#ifdef Q_OS_WIN32
+    // On Windows, use ANGLE so we don't have to load both DX and OGL
+    // user-mode drivers into our app.
+    qputenv("QT_OPENGL", "angle");
+#endif
 
     // Register custom metatypes for use in signals
     qRegisterMetaType<NvApp>("NvApp");
@@ -172,6 +288,11 @@ int main(int argc, char *argv[])
                                               [](QQmlEngine*, QJSEngine*) -> QObject* {
                                                   return new ComputerManager();
                                               });
+    qmlRegisterSingletonType<AutoUpdateChecker>("AutoUpdateChecker", 1, 0,
+                                                "AutoUpdateChecker",
+                                                [](QQmlEngine*, QJSEngine*) -> QObject* {
+                                                    return new AutoUpdateChecker();
+                                                });
 
     QQuickStyle::setStyle("Material");
 
@@ -188,6 +309,11 @@ int main(int argc, char *argv[])
                      SDL_GetError());
     }
 
+    // Avoid the default behavior of changing the timer resolution to 1 ms.
+    // We don't want this all the time that Moonlight is open. We will set
+    // it manually when we start streaming.
+    SDL_SetHint(SDL_HINT_TIMER_RESOLUTION, "0");
+
     int err = app.exec();
 
     SDL_Quit();

app/path.cpp

@@ -0,0 +1,77 @@
+#include "path.h"
+
+#include <QtDebug>
+#include <QDir>
+#include <QStandardPaths>
+#include <QSettings>
+#include <QCoreApplication>
+
+QString Path::s_LogDir;
+QString Path::s_BoxArtCacheDir;
+const QString Path::k_GameControllerMappingFile("gamecontrollerdb.txt");
+
+QString Path::getLogDir()
+{
+    Q_ASSERT(!s_LogDir.isEmpty());
+    return s_LogDir;
+}
+
+QString Path::getBoxArtCacheDir()
+{
+    Q_ASSERT(!s_BoxArtCacheDir.isEmpty());
+    return s_BoxArtCacheDir;
+}
+
+QString Path::getGamepadMappingFile()
+{
+    QString candidatePath;
+
+    // Check the current directory first
+    candidatePath = QDir(QDir::currentPath()).absoluteFilePath(k_GameControllerMappingFile);
+    if (QFile::exists(candidatePath)) {
+        return candidatePath;
+    }
+
+    // Now check the data directories (for Linux, in particular)
+    candidatePath = QStandardPaths::locate(QStandardPaths::DataLocation, k_GameControllerMappingFile);
+    if (!candidatePath.isEmpty() && QFile::exists(candidatePath)) {
+        return candidatePath;
+    }
+
+    // Now try the directory of our app installation (for Windows, if current dir doesn't find it)
+    candidatePath = QDir(QCoreApplication::applicationDirPath()).absoluteFilePath(k_GameControllerMappingFile);
+    if (QFile::exists(candidatePath)) {
+        return candidatePath;
+    }
+
+    // Now try the Resources folder in our app bundle for macOS
+    QDir dir = QDir(QCoreApplication::applicationDirPath());
+    dir.cdUp();
+    dir.cd("Resources");
+    dir.filePath(k_GameControllerMappingFile);
+    candidatePath = dir.absoluteFilePath(k_GameControllerMappingFile);
+    if (QFile::exists(candidatePath)) {
+        return candidatePath;
+    }
+
+    // Couldn't find it
+    return QString();
+}
+
+void Path::initialize(bool portable)
+{
+    if (portable) {
+        s_LogDir = QDir::currentPath();
+        s_BoxArtCacheDir = QDir::currentPath() + "/boxart";
+    }
+    else {
+#ifdef Q_OS_DARWIN
+        // On macOS, $TMPDIR is some random folder under /var/folders/ that nobody can
+        // easily find, so use the system's global tmp directory instead.
+        s_LogDir = "/tmp";
+#else
+        s_LogDir = QDir::tempPath();
+#endif
+        s_BoxArtCacheDir = QStandardPaths::writableLocation(QStandardPaths::CacheLocation) + "/boxart";
+    }
+}

app/path.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <QString>
+
+class Path
+{
+public:
+    static QString getLogDir();
+
+    static QString getBoxArtCacheDir();
+
+    static QString getGamepadMappingFile();
+
+    static void initialize(bool portable);
+
+private:
+    static QString s_LogDir;
+    static QString s_BoxArtCacheDir;
+    static const QString k_GameControllerMappingFile;
+};

app/qml.qrc

@@ -6,5 +6,6 @@
         <file>gui/SettingsView.qml</file>
         <file>gui/StreamSegue.qml</file>
         <file>gui/GamepadMapper.qml</file>
+        <file>gui/QuitSegue.qml</file>
     </qresource>
 </RCC>

app/res/baseline-lock-24px.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" fill="#FFFFFF" width="24" height="24" viewBox="0 0 24 24">
+    <path d="M0 0h24v24H0z" fill="none"/>
+    <path d="M18 8h-1V6c0-2.76-2.24-5-5-5S7 3.24 7 6v2H6c-1.1 0-2 .9-2 2v10c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V10c0-1.1-.9-2-2-2zm-6 9c-1.1 0-2-.9-2-2s.9-2 2-2 2 .9 2 2-.9 2-2 2zm3.1-9H8.9V6c0-1.71 1.39-3.1 3.1-3.1 1.71 0 3.1 1.39 3.1 3.1v2z"/>
+</svg>

app/res/baseline-play_circle_filled_white-48px.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48" fill="#fff">
+    <path d="M0 0h48v48H0z" fill="none"/>
+    <path d="M24 4C12.95 4 4 12.95 4 24s8.95 20 20 20 20-8.95 20-20S35.05 4 24 4zm-4 29V15l12 9-12 9z"/>
+</svg>

app/res/baseline-warning-24px.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" fill="#FFFFFF" width="24" height="24" viewBox="0 0 24 24">
+    <path d="M0 0h24v24H0z" fill="none"/>
+    <path d="M1 21h22L12 2 1 21zm12-3h-2v-2h2v2zm0-4h-2v-4h2v4z"/>
+</svg>

app/res/update.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24" height="24" viewBox="0 0 24 24" fill="#0BF200">
+    <path d="M21,10.12H14.22L16.96,7.3C14.23,4.6 9.81,4.5 7.08,7.2C4.35,9.91 4.35,14.28 7.08,17C9.81,19.7 14.23,19.7 16.96,17C18.32,15.65 19,14.08 19,12.1H21C21,14.08 20.12,16.65 18.36,18.39C14.85,21.87 9.15,21.87 5.64,18.39C2.14,14.92 2.11,9.28 5.62,5.81C9.13,2.34 14.76,2.34 18.27,5.81L21,3V10.12M12.5,8V12.25L16,14.33L15.28,15.54L11,13V8H12.5Z" />
+</svg>

app/resources.qrc

@@ -5,10 +5,14 @@
         <file>res/ic_videogame_asset_white_48px.svg</file>
         <file>res/ic_tv_white_48px.svg</file>
         <file>res/ic_add_to_queue_white_48px.svg</file>
+        <file>res/baseline-lock-24px.svg</file>
+        <file>res/baseline-play_circle_filled_white-48px.svg</file>
+        <file>res/baseline-warning-24px.svg</file>
         <file>res/no_app_image.png</file>
         <file>res/settings.svg</file>
         <file>res/arrow_left.svg</file>
         <file>res/question_mark.svg</file>
         <file>res/moonlight.svg</file>
+        <file>res/update.svg</file>
     </qresource>
 </RCC>

app/settings/streamingpreferences.cpp

@@ -1,5 +1,6 @@
 #include "streamingpreferences.h"
 #include "streaming/session.hpp"
+#include "streaming/streamutils.h"
 
 #include <QSettings>
 
@@ -9,12 +10,17 @@
 #define SER_FPS "fps"
 #define SER_BITRATE "bitrate"
 #define SER_FULLSCREEN "fullscreen"
+#define SER_VSYNC "vsync"
 #define SER_GAMEOPTS "gameopts"
 #define SER_HOSTAUDIO "hostaudio"
 #define SER_MULTICONT "multicontroller"
 #define SER_AUDIOCFG "audiocfg"
 #define SER_VIDEOCFG "videocfg"
 #define SER_VIDEODEC "videodec"
+#define SER_WINDOWMODE "windowmode"
+#define SER_UNSUPPORTEDFPS "unsupportedfps"
+#define SER_MDNS "mdns"
+#define SER_MOUSEACCELERATION "mouseacceleration"
 
 StreamingPreferences::StreamingPreferences()
 {
@@ -29,16 +35,23 @@ void StreamingPreferences::reload()
     height = settings.value(SER_HEIGHT, 720).toInt();
     fps = settings.value(SER_FPS, 60).toInt();
     bitrateKbps = settings.value(SER_BITRATE, getDefaultBitrate(width, height, fps)).toInt();
-    fullScreen = settings.value(SER_FULLSCREEN, true).toBool();
+    enableVsync = settings.value(SER_VSYNC, true).toBool();
     gameOptimizations = settings.value(SER_GAMEOPTS, true).toBool();
     playAudioOnHost = settings.value(SER_HOSTAUDIO, false).toBool();
     multiController = settings.value(SER_MULTICONT, true).toBool();
+    unsupportedFps = settings.value(SER_UNSUPPORTEDFPS, false).toBool();
+    enableMdns = settings.value(SER_MDNS, true).toBool();
+    mouseAcceleration = settings.value(SER_MOUSEACCELERATION, false).toBool();
     audioConfig = static_cast<AudioConfig>(settings.value(SER_AUDIOCFG,
                                                   static_cast<int>(AudioConfig::AC_AUTO)).toInt());
     videoCodecConfig = static_cast<VideoCodecConfig>(settings.value(SER_VIDEOCFG,
                                                   static_cast<int>(VideoCodecConfig::VCC_AUTO)).toInt());
     videoDecoderSelection = static_cast<VideoDecoderSelection>(settings.value(SER_VIDEODEC,
                                                   static_cast<int>(VideoDecoderSelection::VDS_AUTO)).toInt());
+    windowMode = static_cast<WindowMode>(settings.value(SER_WINDOWMODE,
+                                                        // Try to load from the old preference value too
+                                                        static_cast<int>(settings.value(SER_FULLSCREEN, true).toBool() ?
+                                                                             WindowMode::WM_FULLSCREEN : WindowMode::WM_WINDOWED)).toInt());
 }
 
 void StreamingPreferences::save()
@@ -49,13 +62,17 @@ void StreamingPreferences::save()
     settings.setValue(SER_HEIGHT, height);
     settings.setValue(SER_FPS, fps);
     settings.setValue(SER_BITRATE, bitrateKbps);
-    settings.setValue(SER_FULLSCREEN, fullScreen);
+    settings.setValue(SER_VSYNC, enableVsync);
     settings.setValue(SER_GAMEOPTS, gameOptimizations);
     settings.setValue(SER_HOSTAUDIO, playAudioOnHost);
     settings.setValue(SER_MULTICONT, multiController);
+    settings.setValue(SER_UNSUPPORTEDFPS, unsupportedFps);
+    settings.setValue(SER_MDNS, enableMdns);
+    settings.setValue(SER_MOUSEACCELERATION, mouseAcceleration);
     settings.setValue(SER_AUDIOCFG, static_cast<int>(audioConfig));
     settings.setValue(SER_VIDEOCFG, static_cast<int>(videoCodecConfig));
     settings.setValue(SER_VIDEODEC, static_cast<int>(videoDecoderSelection));
+    settings.setValue(SER_WINDOWMODE, static_cast<int>(windowMode));
 }
 
 bool StreamingPreferences::hasAnyHardwareAcceleration()
@@ -67,6 +84,11 @@ bool StreamingPreferences::hasAnyHardwareAcceleration()
                                               1920, 1080, 60);
 }
 
+bool StreamingPreferences::isRunningWayland()
+{
+    return qgetenv("XDG_SESSION_TYPE") == QByteArray("wayland");
+}
+
 int StreamingPreferences::getMaximumStreamingFrameRate()
 {
     // Never let the maximum drop below 60 FPS
@@ -79,12 +101,26 @@ int StreamingPreferences::getMaximumStreamingFrameRate()
         return maxFrameRate;
     }
 
-    for (int i = 0; i < SDL_GetNumVideoDisplays(); i++) {
-        SDL_DisplayMode mode;
-        if (SDL_GetCurrentDisplayMode(i, &mode) == 0) {
-            // Cap the frame rate at 90 FPS, since I can't seem to get
-            // much more out of GFE even with the game rendering at > 300 FPS.
-            maxFrameRate = qMax(maxFrameRate, qMin(90, mode.refresh_rate));
+    SDL_DisplayMode mode, bestMode, desktopMode;
+    for (int displayIndex = 0; displayIndex < SDL_GetNumVideoDisplays(); displayIndex++) {
+        // Get the native desktop resolution
+        if (StreamUtils::getRealDesktopMode(displayIndex, &desktopMode)) {
+
+            // Start at desktop mode and work our way up
+            bestMode = desktopMode;
+            for (int i = 0; i < SDL_GetNumDisplayModes(displayIndex); i++) {
+                if (SDL_GetDisplayMode(displayIndex, i, &mode) == 0) {
+                    if (mode.w == desktopMode.w && mode.h == desktopMode.h) {
+                        if (mode.refresh_rate > bestMode.refresh_rate) {
+                            bestMode = mode;
+                        }
+                    }
+                }
+            }
+
+            // Cap the frame rate at 120 FPS. Past this, the encoders start
+            // to max out and drop frames.
+            maxFrameRate = qMax(maxFrameRate, qMin(120, bestMode.refresh_rate));
         }
     }
 
@@ -93,15 +129,76 @@ int StreamingPreferences::getMaximumStreamingFrameRate()
     return maxFrameRate;
 }
 
+QRect StreamingPreferences::getDesktopResolution(int displayIndex)
+{
+    if (SDL_InitSubSystem(SDL_INIT_VIDEO) != 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "SDL_InitSubSystem(SDL_INIT_VIDEO) failed: %s",
+                     SDL_GetError());
+        return QRect();
+    }
+
+    if (displayIndex >= SDL_GetNumVideoDisplays()) {
+        SDL_QuitSubSystem(SDL_INIT_VIDEO);
+        return QRect();
+    }
+
+    SDL_DisplayMode mode;
+    int err = SDL_GetDesktopDisplayMode(displayIndex, &mode);
+    SDL_QuitSubSystem(SDL_INIT_VIDEO);
+
+    if (err == 0) {
+        return QRect(0, 0, mode.w, mode.h);
+    }
+    else {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "SDL_GetDesktopDisplayMode() failed: %s",
+                     SDL_GetError());
+        return QRect();
+    }
+}
+
+QRect StreamingPreferences::getNativeResolution(int displayIndex)
+{
+    if (SDL_InitSubSystem(SDL_INIT_VIDEO) != 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "SDL_InitSubSystem(SDL_INIT_VIDEO) failed: %s",
+                     SDL_GetError());
+        return QRect();
+    }
+
+    if (displayIndex >= SDL_GetNumVideoDisplays()) {
+        SDL_QuitSubSystem(SDL_INIT_VIDEO);
+        return QRect();
+    }
+
+    SDL_DisplayMode mode;
+    bool success = StreamUtils::getRealDesktopMode(displayIndex, &mode);
+    SDL_QuitSubSystem(SDL_INIT_VIDEO);
+
+    if (success) {
+        return QRect(0, 0, mode.w, mode.h);
+    }
+    else {
+        return QRect();
+    }
+}
+
 int StreamingPreferences::getDefaultBitrate(int width, int height, int fps)
 {
-    if (width * height <= 1280 * 720) {
+    // This table prefers 16:10 resolutions because they are
+    // only slightly more pixels than the 16:9 equivalents, so
+    // we don't want to bump those 16:10 resolutions up to the
+    // next 16:9 slot.
+
+    // This covers 1280x720 and 1280x800 too
+    if (width * height <= 1366 * 768) {
         return static_cast<int>(5000 * (fps / 30.0));
     }
-    else if (width * height <= 1920 * 1080) {
+    else if (width * height <= 1920 * 1200) {
         return static_cast<int>(10000 * (fps / 30.0));
     }
-    else if (width * height <= 2560 * 1440) {
+    else if (width * height <= 2560 * 1600) {
         return static_cast<int>(20000 * (fps / 30.0));
     }
     else /* if (width * height <= 3840 * 2160) */ {

app/settings/streamingpreferences.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <QObject>
+#include <QRect>
 
 class StreamingPreferences : public QObject
 {
@@ -16,8 +17,14 @@ public:
 
     Q_INVOKABLE static bool hasAnyHardwareAcceleration();
 
+    Q_INVOKABLE static bool isRunningWayland();
+
     Q_INVOKABLE static int getMaximumStreamingFrameRate();
 
+    Q_INVOKABLE QRect getDesktopResolution(int displayIndex);
+
+    Q_INVOKABLE QRect getNativeResolution(int displayIndex);
+
     void reload();
 
     enum AudioConfig
@@ -45,40 +52,60 @@ public:
     };
     Q_ENUM(VideoDecoderSelection)
 
+    enum WindowMode
+    {
+        WM_FULLSCREEN,
+        WM_FULLSCREEN_DESKTOP,
+        WM_WINDOWED
+    };
+    Q_ENUM(WindowMode)
+
     Q_PROPERTY(int width MEMBER width NOTIFY displayModeChanged)
     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 fullScreen MEMBER fullScreen NOTIFY fullScreenChanged)
+    Q_PROPERTY(bool enableVsync MEMBER enableVsync NOTIFY enableVsyncChanged)
     Q_PROPERTY(bool gameOptimizations MEMBER gameOptimizations NOTIFY gameOptimizationsChanged)
     Q_PROPERTY(bool playAudioOnHost MEMBER playAudioOnHost NOTIFY playAudioOnHostChanged)
     Q_PROPERTY(bool multiController MEMBER multiController NOTIFY multiControllerChanged)
+    Q_PROPERTY(bool unsupportedFps MEMBER unsupportedFps NOTIFY unsupportedFpsChanged)
+    Q_PROPERTY(bool enableMdns MEMBER enableMdns NOTIFY enableMdnsChanged)
+    Q_PROPERTY(bool mouseAcceleration MEMBER mouseAcceleration NOTIFY mouseAccelerationChanged)
     Q_PROPERTY(AudioConfig audioConfig MEMBER audioConfig NOTIFY audioConfigChanged)
     Q_PROPERTY(VideoCodecConfig videoCodecConfig MEMBER videoCodecConfig NOTIFY videoCodecConfigChanged)
     Q_PROPERTY(VideoDecoderSelection videoDecoderSelection MEMBER videoDecoderSelection NOTIFY videoDecoderSelectionChanged)
+    Q_PROPERTY(WindowMode windowMode MEMBER windowMode NOTIFY windowModeChanged)
 
     // Directly accessible members for preferences
     int width;
     int height;
     int fps;
     int bitrateKbps;
-    bool fullScreen;
+    bool enableVsync;
     bool gameOptimizations;
     bool playAudioOnHost;
     bool multiController;
+    bool unsupportedFps;
+    bool enableMdns;
+    bool mouseAcceleration;
     AudioConfig audioConfig;
     VideoCodecConfig videoCodecConfig;
     VideoDecoderSelection videoDecoderSelection;
+    WindowMode windowMode;
 
 signals:
     void displayModeChanged();
     void bitrateChanged();
-    void fullScreenChanged();
+    void enableVsyncChanged();
     void gameOptimizationsChanged();
     void playAudioOnHostChanged();
     void multiControllerChanged();
+    void unsupportedFpsChanged();
+    void enableMdnsChanged();
+    void mouseAccelerationChanged();
     void audioConfigChanged();
     void videoCodecConfigChanged();
     void videoDecoderSelectionChanged();
+    void windowModeChanged();
 };
 

app/streaming/audio.cpp

@@ -1,224 +0,0 @@
-#include "session.hpp"
-
-#include <Limelight.h>
-#include <SDL.h>
-
-#define MAX_CHANNELS 6
-#define SAMPLES_PER_FRAME 240
-#define MIN_QUEUED_FRAMES 2
-#define MAX_QUEUED_FRAMES 4
-#define STOP_THE_WORLD_LIMIT 20
-#define DROP_RATIO_DENOM 32
-
-SDL_AudioDeviceID Session::s_AudioDevice;
-OpusMSDecoder* Session::s_OpusDecoder;
-short Session::s_OpusDecodeBuffer[MAX_CHANNELS * SAMPLES_PER_FRAME];
-int Session::s_ChannelCount;
-int Session::s_PendingDrops;
-int Session::s_PendingHardDrops;
-unsigned int Session::s_SampleIndex;
-Uint32 Session::s_BaselinePendingData;
-
-int Session::sdlDetermineAudioConfiguration()
-{
-    SDL_AudioSpec want, have;
-    SDL_AudioDeviceID dev;
-    int ret;
-
-    if (SDL_InitSubSystem(SDL_INIT_AUDIO) != 0) {
-        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                     "SDL_InitSubSystem(SDL_INIT_AUDIO) failed: %s",
-                     SDL_GetError());
-        return AUDIO_CONFIGURATION_STEREO;
-    }
-
-    SDL_zero(want);
-    want.freq = 48000;
-    want.format = AUDIO_S16;
-    want.channels = 6;
-    want.samples = 1024;
-
-    // Try to open for 5.1 surround sound, but allow SDL to tell us that's
-    // not available.
-    dev = SDL_OpenAudioDevice(NULL, 0, &want, &have, SDL_AUDIO_ALLOW_CHANNELS_CHANGE);
-    if (dev == 0) {
-        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                     "Failed to open audio device");
-        // We'll probably have issues during audio stream init, but we'll
-        // try anyway
-        ret = AUDIO_CONFIGURATION_STEREO;
-        goto Exit;
-    }
-
-    SDL_CloseAudioDevice(dev);
-
-    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
-                "Audio device has %d channels", have.channels);
-
-    if (have.channels > 2) {
-        // We don't support quadraphonic or 7.1 surround, but SDL
-        // should be able to downmix or upmix better from 5.1 than
-        // from stereo, so use 5.1 in non-stereo cases.
-        ret = AUDIO_CONFIGURATION_51_SURROUND;
-    }
-    else {
-        ret = AUDIO_CONFIGURATION_STEREO;
-    }
-
-Exit:
-    SDL_QuitSubSystem(SDL_INIT_AUDIO);
-    return ret;
-}
-
-int Session::sdlAudioInit(int /* audioConfiguration */,
-                          POPUS_MULTISTREAM_CONFIGURATION opusConfig,
-                          void* /* arContext */, int /* arFlags */)
-{
-    SDL_AudioSpec want, have;
-    int error;
-
-    SDL_assert(!SDL_WasInit(SDL_INIT_AUDIO));
-    if (SDL_InitSubSystem(SDL_INIT_AUDIO) != 0) {
-        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                     "SDL_InitSubSystem(SDL_INIT_AUDIO) failed: %s",
-                     SDL_GetError());
-        return AUDIO_CONFIGURATION_STEREO;
-    }
-
-    SDL_zero(want);
-    want.freq = opusConfig->sampleRate;
-    want.format = AUDIO_S16;
-    want.channels = opusConfig->channelCount;
-
-    // This is supposed to be a power of 2, but our
-    // frames contain a non-power of 2 number of samples,
-    // so the slop would require buffering another full frame.
-    // Specifying non-Po2 seems to work for our supported platforms.
-    want.samples = SAMPLES_PER_FRAME;
-
-    s_AudioDevice = SDL_OpenAudioDevice(NULL, 0, &want, &have, 0);
-    if (s_AudioDevice == 0) {
-        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                     "Failed to open audio device: %s",
-                     SDL_GetError());
-        SDL_QuitSubSystem(SDL_INIT_AUDIO);
-        return -1;
-    }
-
-    s_OpusDecoder = opus_multistream_decoder_create(opusConfig->sampleRate,
-                                                    opusConfig->channelCount,
-                                                    opusConfig->streams,
-                                                    opusConfig->coupledStreams,
-                                                    opusConfig->mapping,
-                                                    &error);
-    if (s_OpusDecoder == NULL) {
-        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                     "Failed to create decoder: %d",
-                     error);
-        SDL_CloseAudioDevice(s_AudioDevice);
-        s_AudioDevice = 0;
-        SDL_QuitSubSystem(SDL_INIT_AUDIO);
-        return -2;
-    }
-
-    // SDL counts pending samples in the queued
-    // audio size using the WASAPI backend. This
-    // includes silence, which can throw off our
-    // pending data count. Get a baseline so we
-    // can exclude that data.
-    s_BaselinePendingData = 0;
-#ifdef Q_OS_WIN32
-    for (int i = 0; i < 100; i++) {
-        s_BaselinePendingData = qMax(s_BaselinePendingData, SDL_GetQueuedAudioSize(s_AudioDevice));
-        SDL_Delay(10);
-    }
-#endif
-    s_BaselinePendingData *= 2;
-    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
-                "Baseline pending audio data: %d bytes",
-                s_BaselinePendingData);
-
-    s_ChannelCount = opusConfig->channelCount;
-    s_SampleIndex = 0;
-    s_PendingDrops = s_PendingHardDrops = 0;
-
-    return 0;
-}
-
-void Session::sdlAudioStart()
-{
-    // Unpause the audio device
-    SDL_PauseAudioDevice(s_AudioDevice, 0);
-}
-
-void Session::sdlAudioStop()
-{
-    // Pause the audio device
-    SDL_PauseAudioDevice(s_AudioDevice, 1);
-}
-
-void Session::sdlAudioCleanup()
-{
-    SDL_CloseAudioDevice(s_AudioDevice);
-    s_AudioDevice = 0;
-
-    opus_multistream_decoder_destroy(s_OpusDecoder);
-    s_OpusDecoder = nullptr;
-
-    SDL_QuitSubSystem(SDL_INIT_AUDIO);
-    SDL_assert(!SDL_WasInit(SDL_INIT_AUDIO));
-}
-
-void Session::sdlAudioDecodeAndPlaySample(char* sampleData, int sampleLength)
-{
-    int samplesDecoded;
-
-    s_SampleIndex++;
-
-    Uint32 queuedAudio = qMax((int)SDL_GetQueuedAudioSize(s_AudioDevice) - (int)s_BaselinePendingData, 0);
-    Uint32 framesQueued = queuedAudio / (SAMPLES_PER_FRAME * s_ChannelCount * sizeof(short));
-
-    // Pend enough drops to get us back to MIN_QUEUED_FRAMES
-    if (framesQueued - s_PendingHardDrops > STOP_THE_WORLD_LIMIT) {
-        s_PendingHardDrops = framesQueued - MIN_QUEUED_FRAMES;
-        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
-                    "Pending hard drop of %u audio frames",
-                    s_PendingHardDrops);
-    }
-    else if (framesQueued - s_PendingHardDrops - s_PendingDrops > MAX_QUEUED_FRAMES) {
-        s_PendingDrops = framesQueued - MIN_QUEUED_FRAMES;
-    }
-
-    // Determine if this frame should be dropped
-    if (framesQueued <= MIN_QUEUED_FRAMES) {
-        s_PendingDrops = s_PendingHardDrops = 0;
-    }
-    else if (s_PendingHardDrops != 0) {
-        // Hard drops happen all at once to forcefully
-        // resync with the source.
-        s_PendingHardDrops--;
-        return;
-    }
-    else if (s_PendingDrops != 0 && s_SampleIndex % DROP_RATIO_DENOM == 0) {
-        // Normal drops are interspersed with the audio data
-        // to hide the glitches.
-        s_PendingDrops--;
-        return;
-    }
-
-    samplesDecoded = opus_multistream_decode(s_OpusDecoder,
-                                             (unsigned char*)sampleData,
-                                             sampleLength,
-                                             s_OpusDecodeBuffer,
-                                             SAMPLES_PER_FRAME,
-                                             0);
-    if (samplesDecoded > 0) {
-        if (SDL_QueueAudio(s_AudioDevice,
-                           s_OpusDecodeBuffer,
-                           sizeof(short) * samplesDecoded * s_ChannelCount) < 0) {
-            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                         "Failed to queue audio sample: %s",
-                         SDL_GetError());
-        }
-    }
-}

app/streaming/audio/audio.cpp

@@ -0,0 +1,124 @@
+#include "../session.hpp"
+#include "renderers/renderer.h"
+#include "renderers/sdl.h"
+#include "renderers/qtaud.h"
+
+#include <Limelight.h>
+
+IAudioRenderer* Session::createAudioRenderer()
+{
+    return new SdlAudioRenderer();
+}
+
+bool Session::testAudio(int audioConfiguration)
+{
+    IAudioRenderer* audioRenderer;
+
+    audioRenderer = createAudioRenderer();
+    if (audioRenderer == nullptr) {
+        return false;
+    }
+
+    bool ret = audioRenderer->testAudio(audioConfiguration);
+
+    delete audioRenderer;
+
+    return ret;
+}
+
+int Session::detectAudioConfiguration()
+{
+    IAudioRenderer* audioRenderer;
+
+    audioRenderer = createAudioRenderer();
+    if (audioRenderer == nullptr) {
+        // Hope for the best
+        return AUDIO_CONFIGURATION_STEREO;
+    }
+
+    int audioConfig = audioRenderer->detectAudioConfiguration();
+
+    delete audioRenderer;
+
+    return audioConfig;
+}
+
+int Session::arInit(int /* audioConfiguration */,
+                    const POPUS_MULTISTREAM_CONFIGURATION opusConfig,
+                    void* /* arContext */, int /* arFlags */)
+{
+    int error;
+
+    SDL_memcpy(&s_ActiveSession->m_AudioConfig, opusConfig, sizeof(*opusConfig));
+
+    s_ActiveSession->m_OpusDecoder =
+            opus_multistream_decoder_create(opusConfig->sampleRate,
+                                            opusConfig->channelCount,
+                                            opusConfig->streams,
+                                            opusConfig->coupledStreams,
+                                            opusConfig->mapping,
+                                            &error);
+    if (s_ActiveSession->m_OpusDecoder == NULL) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Failed to create decoder: %d",
+                     error);
+        return -1;
+    }
+
+    s_ActiveSession->m_AudioRenderer = s_ActiveSession->createAudioRenderer();
+    if (s_ActiveSession->m_AudioRenderer == nullptr) {
+        opus_multistream_decoder_destroy(s_ActiveSession->m_OpusDecoder);
+        return -2;
+    }
+
+    if (!s_ActiveSession->m_AudioRenderer->prepareForPlayback(opusConfig)) {
+        delete s_ActiveSession->m_AudioRenderer;
+        opus_multistream_decoder_destroy(s_ActiveSession->m_OpusDecoder);
+        return -3;
+    }
+
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Audio stream has %d channels",
+                opusConfig->channelCount);
+
+    return 0;
+}
+
+void Session::arCleanup()
+{
+    // m_AudioRenderer is deleted in cleanupAudioRenderer()
+
+    opus_multistream_decoder_destroy(s_ActiveSession->m_OpusDecoder);
+    s_ActiveSession->m_OpusDecoder = nullptr;
+}
+
+// This is called on the main thread
+void Session::cleanupAudioRendererOnMainThread()
+{
+    SDL_AtomicLock(&m_AudioRendererLock);
+    delete m_AudioRenderer;
+    m_AudioRenderer = nullptr;
+    SDL_AtomicUnlock(&m_AudioRendererLock);
+}
+
+void Session::arDecodeAndPlaySample(char* sampleData, int sampleLength)
+{
+    int samplesDecoded;
+
+    samplesDecoded = opus_multistream_decode(s_ActiveSession->m_OpusDecoder,
+                                             (unsigned char*)sampleData,
+                                             sampleLength,
+                                             s_ActiveSession->m_OpusDecodeBuffer,
+                                             SAMPLES_PER_FRAME,
+                                             0);
+    if (samplesDecoded > 0) {
+        SDL_AtomicLock(&s_ActiveSession->m_AudioRendererLock);
+        if (s_ActiveSession->m_AudioRenderer != nullptr) {
+            s_ActiveSession->m_AudioRenderer->submitAudio(s_ActiveSession->m_OpusDecodeBuffer,
+                                                          static_cast<int>(sizeof(short) *
+                                                            samplesDecoded *
+                                                            s_ActiveSession->m_AudioConfig.channelCount));
+        }
+        SDL_AtomicUnlock(&s_ActiveSession->m_AudioRendererLock);
+    }
+}

app/streaming/audio/renderers/qtaud.cpp

@@ -0,0 +1,96 @@
+#include "qtaud.h"
+
+#include <QDebug>
+
+QtAudioRenderer::QtAudioRenderer()
+    : m_AudioOutput(nullptr),
+      m_OutputDevice(nullptr)
+{
+
+}
+
+QtAudioRenderer::~QtAudioRenderer()
+{
+    delete m_AudioOutput;
+}
+
+bool QtAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig)
+{
+    QAudioFormat format;
+
+    // testAudio() assumes this sample rate
+    Q_ASSERT(opusConfig->sampleRate == 48000);
+
+    format.setSampleRate(opusConfig->sampleRate);
+    format.setChannelCount(opusConfig->channelCount);
+    format.setSampleSize(16);
+    format.setSampleType(QAudioFormat::SignedInt);
+    format.setCodec("audio/pcm");
+
+    m_AudioOutput = new QAudioOutput(format);
+
+    // Buffer 40 ms of audio data
+    m_AudioOutput->setBufferSize(format.bytesForDuration(40000));
+
+    m_OutputDevice = m_AudioOutput->start();
+    if (m_OutputDevice == nullptr) {
+        qWarning() << "Audio start failed:" << m_AudioOutput->error();
+        return false;
+    }
+
+    // Check what buffer size was really used after starting
+    qInfo() << "Audio stream buffer:" << m_AudioOutput->bufferSize() << "bytes";
+
+    return true;
+}
+
+void QtAudioRenderer::submitAudio(short* audioBuffer, int audioSize)
+{
+    m_OutputDevice->write((const char *)audioBuffer, audioSize);
+}
+
+bool QtAudioRenderer::testAudio(int audioConfiguration)
+{
+    QAudioFormat format;
+
+    format.setSampleRate(48000);
+    format.setSampleSize(16);
+    format.setSampleType(QAudioFormat::SignedInt);
+    format.setCodec("audio/pcm");
+
+    switch (audioConfiguration) {
+    case AUDIO_CONFIGURATION_STEREO:
+        format.setChannelCount(2);
+        break;
+    case AUDIO_CONFIGURATION_51_SURROUND:
+        format.setChannelCount(6);
+        break;
+    default:
+        Q_ASSERT(false);
+        return false;
+    }
+
+    if (QAudioDeviceInfo::defaultOutputDevice().isFormatSupported(format)) {
+        qInfo() << "Audio test successful with" << format.channelCount() << "channels";
+        return true;
+    }
+    else {
+        qWarning() << "Audio test failed with" << format.channelCount() << "channels";
+        return false;
+    }
+}
+
+int QtAudioRenderer::detectAudioConfiguration()
+{
+    int preferredChannelCount = QAudioDeviceInfo::defaultOutputDevice().preferredFormat().channelCount();
+
+    qInfo() << "Audio output device prefers" << preferredChannelCount << "channel configuration";
+
+    // We can better downmix 5.1 to quad than we can upmix stereo
+    if (preferredChannelCount > 2) {
+        return AUDIO_CONFIGURATION_51_SURROUND;
+    }
+    else {
+        return AUDIO_CONFIGURATION_STEREO;
+    }
+}

app/streaming/audio/renderers/qtaud.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "renderer.h"
+#include <QAudioOutput>
+
+class QtAudioRenderer : public IAudioRenderer
+{
+public:
+    QtAudioRenderer();
+
+    virtual ~QtAudioRenderer();
+
+    virtual bool prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig);
+
+    virtual void submitAudio(short* audioBuffer, int audioSize);
+
+    virtual bool testAudio(int audioConfiguration);
+
+    virtual int detectAudioConfiguration();
+
+private:
+    QAudioOutput* m_AudioOutput;
+    QIODevice* m_OutputDevice;
+};

app/streaming/audio/renderers/renderer.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <Limelight.h>
+
+#define MAX_CHANNELS 6
+#define SAMPLES_PER_FRAME 240
+
+class IAudioRenderer
+{
+public:
+    virtual ~IAudioRenderer() {}
+
+    virtual bool prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig) = 0;
+
+    virtual void submitAudio(short* audioBuffer, int audioSize) = 0;
+
+    virtual bool testAudio(int audioConfiguration) = 0;
+
+    virtual int detectAudioConfiguration() = 0;
+};

app/streaming/audio/renderers/sdl.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include "renderer.h"
+#include <SDL.h>
+
+class SdlAudioRenderer : public IAudioRenderer
+{
+public:
+    SdlAudioRenderer();
+
+    virtual ~SdlAudioRenderer();
+
+    virtual bool prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig);
+
+    virtual void submitAudio(short* audioBuffer, int audioSize);
+
+    virtual bool testAudio(int audioConfiguration);
+
+    virtual int detectAudioConfiguration();
+
+private:
+    SDL_AudioDeviceID m_AudioDevice;
+    Uint32 m_ChannelCount;
+    Uint32 m_PendingDrops;
+    Uint32 m_PendingHardDrops;
+    Uint32 m_SampleIndex;
+    Uint32 m_BaselinePendingData;
+};

app/streaming/audio/renderers/sdlaud.cpp

@@ -0,0 +1,218 @@
+#include "sdl.h"
+
+#include <Limelight.h>
+#include <SDL.h>
+
+#include <QAudioDeviceInfo>
+#include <QtGlobal>
+
+#define MIN_QUEUED_FRAMES 2
+#define MAX_QUEUED_FRAMES 4
+#define STOP_THE_WORLD_LIMIT 20
+#define DROP_RATIO_DENOM 32
+
+// Detecting this with SDL is quite problematic, so we'll use Qt's
+// multimedia framework to do so. It appears to be actually
+// accurate on Linux and macOS, unlike using SDL and relying
+// on a channel change in the format received.
+int SdlAudioRenderer::detectAudioConfiguration()
+{
+    int preferredChannelCount = QAudioDeviceInfo::defaultOutputDevice().preferredFormat().channelCount();
+
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Audio output device prefers %d channel configuration",
+                preferredChannelCount);
+
+    // We can better downmix 5.1 to quad than we can upmix stereo
+    if (preferredChannelCount > 2) {
+        return AUDIO_CONFIGURATION_51_SURROUND;
+    }
+    else {
+        return AUDIO_CONFIGURATION_STEREO;
+    }
+}
+
+bool SdlAudioRenderer::testAudio(int audioConfiguration)
+{
+    SDL_AudioSpec want, have;
+    SDL_AudioDeviceID dev;
+
+    SDL_zero(want);
+    want.freq = 48000;
+    want.format = AUDIO_S16;
+    want.samples = SAMPLES_PER_FRAME;
+
+    switch (audioConfiguration) {
+    case AUDIO_CONFIGURATION_STEREO:
+        want.channels = 2;
+        break;
+    case AUDIO_CONFIGURATION_51_SURROUND:
+        want.channels = 6;
+        break;
+    default:
+        SDL_assert(false);
+        return false;
+    }
+
+    // Test audio device for functionality
+    dev = SDL_OpenAudioDevice(NULL, 0, &want, &have, 0);
+    if (dev == 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Audio test - Failed to open audio device: %s",
+                     SDL_GetError());
+        return false;
+    }
+
+    SDL_CloseAudioDevice(dev);
+
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Audio test - Successful with %d channels",
+                want.channels);
+    return true;
+}
+
+SdlAudioRenderer::SdlAudioRenderer()
+    : m_AudioDevice(0),
+      m_ChannelCount(0),
+      m_PendingDrops(0),
+      m_PendingHardDrops(0),
+      m_SampleIndex(0),
+      m_BaselinePendingData(0)
+{
+    SDL_assert(!SDL_WasInit(SDL_INIT_AUDIO));
+    if (SDL_InitSubSystem(SDL_INIT_AUDIO) != 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "SDL_InitSubSystem(SDL_INIT_AUDIO) failed: %s",
+                     SDL_GetError());
+        SDL_assert(SDL_WasInit(SDL_INIT_AUDIO));
+    }
+}
+
+bool SdlAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig)
+{
+    SDL_AudioSpec want, have;
+
+    SDL_zero(want);
+    want.freq = opusConfig->sampleRate;
+    want.format = AUDIO_S16;
+    want.channels = opusConfig->channelCount;
+
+    // This is supposed to be a power of 2, but our
+    // frames contain a non-power of 2 number of samples,
+    // so the slop would require buffering another full frame.
+    // Specifying non-Po2 seems to work for our supported platforms.
+    want.samples = SAMPLES_PER_FRAME;
+
+    m_AudioDevice = SDL_OpenAudioDevice(NULL, 0, &want, &have, 0);
+    if (m_AudioDevice == 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Failed to open audio device: %s",
+                     SDL_GetError());
+        SDL_QuitSubSystem(SDL_INIT_AUDIO);
+        return false;
+    }
+
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Desired audio buffer: %u samples (%lu bytes)",
+                want.samples,
+                want.samples * sizeof(short) * want.channels);
+
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Obtained audio buffer: %u samples (%u bytes)",
+                have.samples,
+                have.size);
+
+    // SDL counts pending samples in the queued
+    // audio size using the WASAPI backend. This
+    // includes silence, which can throw off our
+    // pending data count. Get a baseline so we
+    // can exclude that data.
+    m_BaselinePendingData = 0;
+#ifdef Q_OS_WIN32
+    for (int i = 0; i < 100; i++) {
+        m_BaselinePendingData = qMax(m_BaselinePendingData, SDL_GetQueuedAudioSize(m_AudioDevice));
+        SDL_Delay(10);
+    }
+#endif
+    m_BaselinePendingData *= 2;
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Baseline pending audio data: %d bytes",
+                m_BaselinePendingData);
+
+    m_ChannelCount = opusConfig->channelCount;
+    m_SampleIndex = 0;
+    m_PendingDrops = m_PendingHardDrops = 0;
+
+    // Start playback
+    SDL_PauseAudioDevice(m_AudioDevice, 0);
+
+    return true;
+}
+
+SdlAudioRenderer::~SdlAudioRenderer()
+{
+    if (m_AudioDevice != 0) {
+        // Stop playback
+        SDL_PauseAudioDevice(m_AudioDevice, 1);
+        SDL_CloseAudioDevice(m_AudioDevice);
+    }
+
+    SDL_QuitSubSystem(SDL_INIT_AUDIO);
+    SDL_assert(!SDL_WasInit(SDL_INIT_AUDIO));
+}
+
+void SdlAudioRenderer::submitAudio(short* audioBuffer, int audioSize)
+{
+    m_SampleIndex++;
+
+    Uint32 queuedAudio = SDL_GetQueuedAudioSize(m_AudioDevice);
+    if (queuedAudio > m_BaselinePendingData) {
+        queuedAudio -= m_BaselinePendingData;
+    }
+    else {
+        queuedAudio = 0;
+    }
+
+    Uint32 framesQueued = queuedAudio / (SAMPLES_PER_FRAME * m_ChannelCount * sizeof(short));
+
+    // We must check this prior to the below checks to ensure we don't
+    // underflow if framesQueued - m_PendingHardDrops < 0.
+    if (framesQueued <= MIN_QUEUED_FRAMES) {
+        m_PendingDrops = m_PendingHardDrops = 0;
+    }
+    // Pend enough drops to get us back to MIN_QUEUED_FRAMES, checking first
+    // to ensure we don't underflow.
+    else if (framesQueued > m_PendingHardDrops &&
+             framesQueued - m_PendingHardDrops > STOP_THE_WORLD_LIMIT) {
+        m_PendingHardDrops = framesQueued - MIN_QUEUED_FRAMES;
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "Pending hard drop of %u audio frames",
+                    m_PendingHardDrops);
+    }
+    // If we're under the stop the world limit, we can drop samples
+    // gracefully over the next little while.
+    else if (framesQueued > m_PendingHardDrops + m_PendingDrops &&
+             framesQueued - m_PendingHardDrops - m_PendingDrops > MAX_QUEUED_FRAMES) {
+        m_PendingDrops = framesQueued - MIN_QUEUED_FRAMES;
+    }
+
+    // Determine if this frame should be dropped
+    if (m_PendingHardDrops != 0) {
+        // Hard drops happen all at once to forcefully
+        // resync with the source.
+        m_PendingHardDrops--;
+        return;
+    }
+    else if (m_PendingDrops != 0 && m_SampleIndex % DROP_RATIO_DENOM == 0) {
+        // Normal drops are interspersed with the audio data
+        // to hide the glitches.
+        m_PendingDrops--;
+        return;
+    }
+
+    if (SDL_QueueAudio(m_AudioDevice, audioBuffer, audioSize) < 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Failed to queue audio sample: %s",
+                     SDL_GetError());
+    }
+}

app/streaming/input.cpp

@@ -1,6 +1,10 @@
 #include <Limelight.h>
 #include <SDL.h>
 #include "streaming/session.hpp"
+#include "path.h"
+
+#include <QtGlobal>
+#include <QDir>
 
 #define VK_0 0x30
 #define VK_A 0x41
@@ -20,9 +24,21 @@ const int SdlInputHandler::k_ButtonMap[] = {
     UP_FLAG, DOWN_FLAG, LEFT_FLAG, RIGHT_FLAG
 };
 
-SdlInputHandler::SdlInputHandler(bool multiController)
-    : m_MultiController(multiController)
+SdlInputHandler::SdlInputHandler(StreamingPreferences& prefs, NvComputer* computer)
+    : m_LastMouseMotionTime(0),
+      m_MultiController(prefs.multiController),
+      m_NeedsInputDelay(false)
 {
+    // Allow gamepad input when the app doesn't have focus
+    SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");
+
+    // If mouse acceleration is enabled, use relative mode warp (which
+    // is via normal motion events that are influenced by mouse acceleration).
+    // Otherwise, we'll use raw input capture which is straight from the device
+    // without modification by the OS.
+    SDL_SetHint(SDL_HINT_MOUSE_RELATIVE_MODE_WARP,
+                prefs.mouseAcceleration ? "1" : "0");
+
     // We need to reinit this each time, since you only get
     // an initial set of gamepad arrival events once per init.
     SDL_assert(!SDL_WasInit(SDL_INIT_GAMECONTROLLER));
@@ -32,10 +48,52 @@ SdlInputHandler::SdlInputHandler(bool multiController)
                      SDL_GetError());
     }
 
+    QString mappingFile = Path::getGamepadMappingFile();
+    if (!mappingFile.isEmpty()) {
+        std::string mappingFileNative = QDir::toNativeSeparators(mappingFile).toStdString();
+
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "Loading gamepad mappings from: %s",
+                    mappingFileNative.c_str());
+
+        int newMappings = SDL_GameControllerAddMappingsFromFile(mappingFileNative.c_str());
+        if (newMappings < 0) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "Error loading gamepad mappings: %s",
+                         SDL_GetError());
+        }
+        else {
+            SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                        "Loaded %d new gamepad mappings",
+                        newMappings);
+        }
+    }
+    else {
+        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                    "No gamepad mapping file found");
+    }
+
     if (!m_MultiController) {
         // Player 1 is always present in non-MC mode
         m_GamepadMask = 0x1;
     }
+    else {
+        // Otherwise, detect gamepads on the fly
+        m_GamepadMask = 0;
+    }
+
+    // Prior to GFE 3.14.1, sending too many mouse motion events can cause
+    // GFE to choke and input latency to increase significantly. We will
+    // artificially throttle them to avoid this situation.
+    QVector<int> gfeVersion = NvHTTP::parseQuad(computer->gfeVersion);
+    if (gfeVersion.isEmpty() || // Very old versions don't have GfeVersion at all
+            gfeVersion[0] < 3 ||
+            (gfeVersion[0] == 3 && gfeVersion[1] < 14) ||
+            (gfeVersion[0] == 3 && gfeVersion[1] == 14 && gfeVersion[2] < 1)) {
+        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                    "This older version of GFE requires input delay hack");
+        m_NeedsInputDelay = true;
+    }
 
     SDL_zero(m_GamepadState);
 }
@@ -153,6 +211,7 @@ void SdlInputHandler::handleKeyEvent(SDL_KeyboardEvent* event)
             case SDL_SCANCODE_CLEAR:
                 keyCode = 0x0C;
                 break;
+            case SDL_SCANCODE_KP_ENTER: // FIXME: Is this correct?
             case SDL_SCANCODE_RETURN:
                 keyCode = 0x0D;
                 break;
@@ -230,7 +289,7 @@ void SdlInputHandler::handleKeyEvent(SDL_KeyboardEvent* event)
             case SDL_SCANCODE_KP_MINUS:
                 keyCode = 0x6D;
                 break;
-            case SDL_SCANCODE_KP_DECIMAL:
+            case SDL_SCANCODE_KP_PERIOD:
                 keyCode = 0x6E;
                 break;
             case SDL_SCANCODE_KP_DIVIDE:
@@ -284,6 +343,9 @@ void SdlInputHandler::handleKeyEvent(SDL_KeyboardEvent* event)
             case SDL_SCANCODE_SEMICOLON:
                 keyCode = 0xBA;
                 break;
+            case SDL_SCANCODE_EQUALS:
+                keyCode = 0xBB;
+                break;
             case SDL_SCANCODE_COMMA:
                 keyCode = 0xBC;
                 break;
@@ -311,6 +373,9 @@ void SdlInputHandler::handleKeyEvent(SDL_KeyboardEvent* event)
             case SDL_SCANCODE_APOSTROPHE:
                 keyCode = 0xDE;
                 break;
+            case SDL_SCANCODE_NONUSBACKSLASH:
+                keyCode = 0xE2;
+                break;
             default:
                 SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
                             "Unhandled button event: %d",
@@ -329,9 +394,13 @@ void SdlInputHandler::handleMouseButtonEvent(SDL_MouseButtonEvent* event)
 {
     int button;
 
-    // Capture the mouse again if clicked when unbound
+    // Capture the mouse again if clicked when unbound.
+    // We start capture on left button released instead of
+    // pressed to avoid sending an errant mouse button released
+    // event to the host when clicking into our window (since
+    // the pressed event was consumed by this code).
     if (event->button == SDL_BUTTON_LEFT &&
-            event->state == SDL_PRESSED &&
+            event->state == SDL_RELEASED &&
             !SDL_GetRelativeMouseMode()) {
         SDL_SetRelativeMouseMode(SDL_TRUE);
         return;
@@ -375,10 +444,39 @@ void SdlInputHandler::handleMouseMotionEvent(SDL_MouseMotionEvent* event)
         // Not capturing
         return;
     }
+    short xdelta = (short)event->xrel;
+    short ydelta = (short)event->yrel;
 
-    if (event->xrel != 0 || event->yrel != 0) {
-        LiSendMouseMoveEvent((unsigned short)event->xrel,
-                             (unsigned short)event->yrel);
+    // If we're sending more than one motion event per millisecond,
+    // delay for 1 ms to allow batching of mouse move events. On older
+    // versions of GFE, we will unconditionally wait this 1 ms to
+    // work around an input processing issue that causes massive mouse latency.
+    Uint32 currentTime = SDL_GetTicks();
+    if (m_NeedsInputDelay || !SDL_TICKS_PASSED(currentTime, m_LastMouseMotionTime + 1)) {
+        SDL_Delay(1);
+        currentTime = SDL_GetTicks();
+    }
+    m_LastMouseMotionTime = currentTime;
+
+    // Pump even if we didn't delay since we might get some extra events
+    SDL_PumpEvents();
+
+    // Batch all of the pending mouse motion events
+    SDL_Event nextEvent;
+    while (SDL_PeepEvents(&nextEvent,
+                          1,
+                          SDL_GETEVENT,
+                          SDL_MOUSEMOTION,
+                          SDL_MOUSEMOTION) == 1) {
+        // In theory, these can overflow but in practice
+        // it should be highly unlikely since it would require
+        // moving 64K pixels in 1 ms.
+        xdelta += nextEvent.motion.xrel;
+        ydelta += nextEvent.motion.yrel;
+    }
+
+    if (xdelta != 0 || ydelta != 0) {
+        LiSendMouseMoveEvent(xdelta, ydelta);
     }
 }
 
@@ -438,13 +536,18 @@ void SdlInputHandler::handleControllerAxisEvent(SDL_ControllerAxisEvent* event)
             state->lsX = event->value;
             break;
         case SDL_CONTROLLER_AXIS_LEFTY:
-            state->lsY = -event->value;
+            // Signed values have one more negative value than
+            // positive value, so inverting the sign on -32768
+            // could actually cause the value to overflow and
+            // wrap around to be negative again. Avoid that by
+            // capping the value at 32767.
+            state->lsY = -qMax(event->value, (short)-32767);
             break;
         case SDL_CONTROLLER_AXIS_RIGHTX:
             state->rsX = event->value;
             break;
         case SDL_CONTROLLER_AXIS_RIGHTY:
-            state->rsY = -event->value;
+            state->rsY = -qMax(event->value, (short)-32767);
             break;
         case SDL_CONTROLLER_AXIS_TRIGGERLEFT:
             state->lt = (unsigned char)(event->value * 255UL / 32767);

app/streaming/input.hpp

@@ -1,5 +1,8 @@
 #pragma once
 
+#include "settings/streamingpreferences.h"
+#include "backend/computermanager.h"
+
 #include <SDL.h>
 
 struct GamepadState {
@@ -18,7 +21,7 @@ struct GamepadState {
 class SdlInputHandler
 {
 public:
-    explicit SdlInputHandler(bool multiController);
+    explicit SdlInputHandler(StreamingPreferences& prefs, NvComputer* computer);
 
     ~SdlInputHandler();
 
@@ -44,7 +47,9 @@ private:
 
     void sendGamepadState(GamepadState* state);
 
+    Uint32 m_LastMouseMotionTime;
     bool m_MultiController;
+    bool m_NeedsInputDelay;
     int m_GamepadMask;
     GamepadState m_GamepadState[MAX_GAMEPADS];
 

app/streaming/session.cpp

@@ -1,10 +1,17 @@
 #include "session.hpp"
 #include "settings/streamingpreferences.h"
+#include "streaming/streamutils.h"
 
 #include <Limelight.h>
 #include <SDL.h>
 #include "utils.h"
 
+// HACK: Need to call SetThreadExecutionState() because SDL doesn't
+#ifdef Q_OS_WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#endif
+
 #ifdef HAVE_FFMPEG
 #include "video/ffmpeg.h"
 #endif
@@ -13,15 +20,6 @@
 #include "video/sl.h"
 #endif
 
-#ifdef Q_OS_WIN32
-// Using full-screen desktop allows us to avoid needing to enable V-sync
-// and it also avoids some strange flickering issues on my Win7 test machine
-// with Intel HD 5500 graphics.
-#define SDL_OS_FULLSCREEN_FLAG SDL_WINDOW_FULLSCREEN_DESKTOP
-#else
-#define SDL_OS_FULLSCREEN_FLAG SDL_WINDOW_FULLSCREEN
-#endif
-
 #ifdef Q_OS_WIN32
 // Scaling the icon down on Win32 looks dreadful, so render at lower res
 #define ICON_SIZE 32
@@ -50,11 +48,11 @@ CONNECTION_LISTENER_CALLBACKS Session::k_ConnCallbacks = {
 };
 
 AUDIO_RENDERER_CALLBACKS Session::k_AudioCallbacks = {
-    Session::sdlAudioInit,
-    Session::sdlAudioStart,
-    Session::sdlAudioStop,
-    Session::sdlAudioCleanup,
-    Session::sdlAudioDecodeAndPlaySample,
+    Session::arInit,
+    nullptr,
+    nullptr,
+    Session::arCleanup,
+    Session::arDecodeAndPlaySample,
     CAPABILITY_DIRECT_SUBMIT
 };
 
@@ -81,6 +79,8 @@ void Session::clStageFailed(int stage, long errorCode)
 
 void Session::clConnectionTerminated(long errorCode)
 {
+    emit s_ActiveSession->displayLaunchError("Connection terminated");
+
     SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
                  "Connection terminated: %ld",
                  errorCode);
@@ -104,13 +104,15 @@ void Session::clLogMessage(const char* format, ...)
     va_end(ap);
 }
 
+#define CALL_INITIALIZE(dec) (dec)->initialize(vds, window, videoFormat, width, height, frameRate, enableVsync)
+
 bool Session::chooseDecoder(StreamingPreferences::VideoDecoderSelection vds,
                             SDL_Window* window, int videoFormat, int width, int height,
-                            int frameRate, IVideoDecoder*& chosenDecoder)
+                            int frameRate, bool enableVsync, IVideoDecoder*& chosenDecoder)
 {
 #ifdef HAVE_SLVIDEO
     chosenDecoder = new SLVideoDecoder();
-    if (chosenDecoder->initialize(vds, window, videoFormat, width, height, frameRate)) {
+    if (CALL_INITIALIZE(chosenDecoder)) {
         SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
                     "SLVideo video decoder chosen");
         return true;
@@ -125,7 +127,7 @@ bool Session::chooseDecoder(StreamingPreferences::VideoDecoderSelection vds,
 
 #ifdef HAVE_FFMPEG
     chosenDecoder = new FFmpegVideoDecoder();
-    if (chosenDecoder->initialize(vds, window, videoFormat, width, height, frameRate)) {
+    if (CALL_INITIALIZE(chosenDecoder)) {
         SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
                     "FFmpeg-based video decoder chosen");
         return true;
@@ -138,6 +140,10 @@ bool Session::chooseDecoder(StreamingPreferences::VideoDecoderSelection vds,
     }
 #endif
 
+#if !defined(HAVE_FFMPEG) && !defined(HAVE_SLVIDEO)
+#error No video decoding libraries available!
+#endif
+
     // If we reach this, we didn't initialize any decoders successfully
     return false;
 }
@@ -153,6 +159,9 @@ int Session::drSetup(int videoFormat, int width, int height, int frameRate, void
     // don't have to hide and show the SDL window (which seems to
     // cause pointer hiding to break on Windows).
 
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "Video stream is %dx%dx%d (format 0x%x)",
+                width, height, frameRate, videoFormat);
+
     return 0;
 }
 
@@ -205,7 +214,7 @@ bool Session::isHardwareDecodeAvailable(StreamingPreferences::VideoDecoderSelect
         return false;
     }
 
-    if (!chooseDecoder(vds, window, videoFormat, width, height, frameRate, decoder)) {
+    if (!chooseDecoder(vds, window, videoFormat, width, height, frameRate, true, decoder)) {
         SDL_DestroyWindow(window);
         SDL_QuitSubSystem(SDL_INIT_VIDEO);
         return false;
@@ -221,14 +230,66 @@ bool Session::isHardwareDecodeAvailable(StreamingPreferences::VideoDecoderSelect
     return ret;
 }
 
+int Session::getDecoderCapabilities(StreamingPreferences::VideoDecoderSelection vds,
+                                    int videoFormat, int width, int height, int frameRate)
+{
+    IVideoDecoder* decoder;
+
+    if (SDL_InitSubSystem(SDL_INIT_VIDEO) != 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "SDL_InitSubSystem(SDL_INIT_VIDEO) failed: %s",
+                     SDL_GetError());
+        return false;
+    }
+
+    SDL_Window* window = SDL_CreateWindow("", 0, 0, width, height, SDL_WINDOW_HIDDEN);
+    if (!window) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Failed to create window for hardware decode test: %s",
+                     SDL_GetError());
+        SDL_QuitSubSystem(SDL_INIT_VIDEO);
+        return false;
+    }
+
+    if (!chooseDecoder(vds, window, videoFormat, width, height, frameRate, true, decoder)) {
+        SDL_DestroyWindow(window);
+        SDL_QuitSubSystem(SDL_INIT_VIDEO);
+        return false;
+    }
+
+    SDL_DestroyWindow(window);
+
+    int caps = decoder->getDecoderCapabilities();
+
+    delete decoder;
+    SDL_QuitSubSystem(SDL_INIT_VIDEO);
+
+    return caps;
+}
+
 Session::Session(NvComputer* computer, NvApp& app)
     : m_Computer(computer),
       m_App(app),
       m_Window(nullptr),
       m_VideoDecoder(nullptr),
       m_DecoderLock(0),
-      m_NeedsIdr(false)
+      m_NeedsIdr(false),
+      m_AudioDisabled(false),
+      m_DisplayOriginX(0),
+      m_DisplayOriginY(0),
+      m_PendingWindowedTransition(false),
+      m_OpusDecoder(nullptr),
+      m_AudioRenderer(nullptr),
+      m_AudioRendererLock(0)
 {
+
+}
+
+void Session::initialize()
+{
+    qInfo() << "Server GPU:" << m_Computer->gpuModel;
+    qInfo() << "Server GFE version:" << m_Computer->gfeVersion;
+
     LiInitializeVideoCallbacks(&m_VideoCallbacks);
     m_VideoCallbacks.setup = drSetup;
     m_VideoCallbacks.submitDecodeUnit = drSubmitDecodeUnit;
@@ -237,7 +298,11 @@ Session::Session(NvComputer* computer, NvApp& app)
     m_VideoCallbacks.capabilities |= CAPABILITY_DIRECT_SUBMIT;
 
     // Slice up to 4 times for parallel decode, once slice per core
-    m_VideoCallbacks.capabilities |= CAPABILITY_SLICES_PER_FRAME(qMin(MAX_SLICES, SDL_GetCPUCount()));
+    int slices = qMin(MAX_SLICES, SDL_GetCPUCount());
+    m_VideoCallbacks.capabilities |= CAPABILITY_SLICES_PER_FRAME(slices);
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Encoder configured for %d slices per frame",
+                slices);
 
     LiInitializeStreamConfiguration(&m_StreamConfig);
     m_StreamConfig.width = m_Preferences.width;
@@ -245,6 +310,11 @@ Session::Session(NvComputer* computer, NvApp& app)
     m_StreamConfig.fps = m_Preferences.fps;
     m_StreamConfig.bitrate = m_Preferences.bitrateKbps;
     m_StreamConfig.hevcBitratePercentageMultiplier = 75;
+
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Video bitrate: %d kbps",
+                m_StreamConfig.bitrate);
+
     RAND_bytes(reinterpret_cast<unsigned char*>(m_StreamConfig.remoteInputAesKey),
                sizeof(m_StreamConfig.remoteInputAesKey));
 
@@ -254,7 +324,8 @@ Session::Session(NvComputer* computer, NvApp& app)
     switch (m_Preferences.audioConfig)
     {
     case StreamingPreferences::AC_AUTO:
-        m_StreamConfig.audioConfiguration = sdlDetermineAudioConfiguration();
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "Autodetecting audio configuration");
+        m_StreamConfig.audioConfiguration = detectAudioConfiguration();
         break;
     case StreamingPreferences::AC_FORCE_STEREO:
         m_StreamConfig.audioConfiguration = AUDIO_CONFIGURATION_STEREO;
@@ -264,6 +335,10 @@ Session::Session(NvComputer* computer, NvApp& app)
         break;
     }
 
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Audio configuration: %d",
+                m_StreamConfig.audioConfiguration);
+
     switch (m_Preferences.videoCodecConfig)
     {
     case StreamingPreferences::VCC_AUTO:
@@ -274,6 +349,16 @@ Session::Session(NvComputer* computer, NvApp& app)
                                           m_StreamConfig.width,
                                           m_StreamConfig.height,
                                           m_StreamConfig.fps);
+
+        // Oddly enough, the H.264 encoder on my GTX 1080 is actually more
+        // performant than the HEVC encoder (especially because split frame encode
+        // is disabled for HEVC by moonlight-common-c). Use H.264 for 1440p 100 FPS and above.
+        if (m_StreamConfig.width * m_StreamConfig.height * m_StreamConfig.fps >= 2560 * 1440 * 100) {
+            SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                        "Preferring H.264 for higher performance");
+            m_StreamConfig.supportsHevc = false;
+        }
+
         m_StreamConfig.enableHdr = false;
         break;
     case StreamingPreferences::VCC_FORCE_H264:
@@ -290,25 +375,64 @@ Session::Session(NvComputer* computer, NvApp& app)
         break;
     }
 
-    if (computer->activeAddress == computer->remoteAddress) {
+    if (m_Computer->activeAddress == m_Computer->remoteAddress) {
         m_StreamConfig.streamingRemotely = 1;
     }
     else {
         m_StreamConfig.streamingRemotely = 0;
     }
 
-    if (computer->activeAddress == computer->localAddress) {
+    if (m_Computer->activeAddress == m_Computer->localAddress) {
         m_StreamConfig.packetSize = 1392;
     }
     else {
         m_StreamConfig.packetSize = 1024;
     }
+
+    switch (m_Preferences.windowMode)
+    {
+    case StreamingPreferences::WM_FULLSCREEN_DESKTOP:
+        m_FullScreenFlag = SDL_WINDOW_FULLSCREEN_DESKTOP;
+        break;
+    case StreamingPreferences::WM_FULLSCREEN:
+    default:
+        m_FullScreenFlag = SDL_WINDOW_FULLSCREEN;
+        break;
+    }
+}
+
+void Session::emitLaunchWarning(QString text)
+{
+    // Emit the warning to the UI
+    emit displayLaunchWarning(text);
+
+    // Wait a little bit so the user can actually read what we just said.
+    // This wait is a little longer than the actual toast timeout (3 seconds)
+    // to allow it to transition off the screen before continuing.
+    uint32_t start = SDL_GetTicks();
+    while (!SDL_TICKS_PASSED(SDL_GetTicks(), start + 3500)) {
+        // Pump the UI loop while we wait
+        SDL_Delay(5);
+        QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
+    }
 }
 
 bool Session::validateLaunch()
 {
     QStringList warningList;
 
+    if (m_Preferences.videoDecoderSelection == StreamingPreferences::VDS_FORCE_SOFTWARE) {
+        emitLaunchWarning("Your settings selection to force software decoding may cause poor streaming performance.");
+    }
+
+    if (m_Preferences.unsupportedFps && m_StreamConfig.fps > 60) {
+        emitLaunchWarning("Using unsupported FPS options may cause stuttering or lag.");
+
+        if (m_Preferences.enableVsync) {
+            emitLaunchWarning("V-sync will be disabled when streaming at a higher frame rate than the display.");
+        }
+    }
+
     if (m_StreamConfig.supportsHevc) {
         bool hevcForced = m_Preferences.videoCodecConfig == StreamingPreferences::VCC_FORCE_HEVC ||
                 m_Preferences.videoCodecConfig == StreamingPreferences::VCC_FORCE_HEVC_HDR;
@@ -317,22 +441,26 @@ bool Session::validateLaunch()
                                        VIDEO_FORMAT_H265,
                                        m_StreamConfig.width,
                                        m_StreamConfig.height,
-                                       m_StreamConfig.fps)) {
-            // NOTE: HEVC currently uses only 1 slice regardless of what
-            // we provide in CAPABILITY_SLICES_PER_FRAME(), so we should
-            // never use it for software decoding (unless common-c starts
-            // respecting it for HEVC).
-            m_StreamConfig.supportsHevc = false;
-
+                                       m_StreamConfig.fps) &&
+                m_Preferences.videoDecoderSelection == StreamingPreferences::VDS_AUTO) {
             if (hevcForced) {
-                emit displayLaunchWarning("This PC's GPU doesn't support HEVC decoding.");
+                emitLaunchWarning("Using software decoding due to your selection to force HEVC without GPU support. This may cause poor streaming performance.");
+            }
+            else {
+                emitLaunchWarning("This PC's GPU doesn't support HEVC decoding.");
+                m_StreamConfig.supportsHevc = false;
             }
         }
 
         if (hevcForced) {
             if (m_Computer->maxLumaPixelsHEVC == 0) {
-                emit displayLaunchWarning("Your host PC GPU doesn't support HEVC. "
-                                          "A GeForce GTX 900-series (Maxwell) or later GPU is required for HEVC streaming.");
+                emitLaunchWarning("Your host PC GPU doesn't support HEVC. "
+                                  "A GeForce GTX 900-series (Maxwell) or later GPU is required for HEVC streaming.");
+
+                // Moonlight-common-c will handle this case already, but we want
+                // to set this explicitly here so we can do our hardware acceleration
+                // check below.
+                m_StreamConfig.supportsHevc = false;
             }
         }
     }
@@ -343,19 +471,19 @@ bool Session::validateLaunch()
 
         // Check that the app supports HDR
         if (!m_App.hdrSupported) {
-            emit displayLaunchWarning(m_App.name + " doesn't support HDR10.");
+            emitLaunchWarning(m_App.name + " doesn't support HDR10.");
         }
         // Check that the server GPU supports HDR
         else if (!(m_Computer->serverCodecModeSupport & 0x200)) {
-            emit displayLaunchWarning("Your host PC GPU doesn't support HDR streaming. "
-                                      "A GeForce GTX 1000-series (Pascal) or later GPU is required for HDR streaming.");
+            emitLaunchWarning("Your host PC GPU doesn't support HDR streaming. "
+                              "A GeForce GTX 1000-series (Pascal) or later GPU is required for HDR streaming.");
         }
         else if (!isHardwareDecodeAvailable(m_Preferences.videoDecoderSelection,
                                             VIDEO_FORMAT_H265_MAIN10,
                                             m_StreamConfig.width,
                                             m_StreamConfig.height,
                                             m_StreamConfig.fps)) {
-            emit displayLaunchWarning("This PC's GPU doesn't support HEVC Main10 decoding for HDR streaming.");
+            emitLaunchWarning("This PC's GPU doesn't support HEVC Main10 decoding for HDR streaming.");
         }
         else {
             // TODO: Also validate display capabilites
@@ -367,8 +495,8 @@ bool Session::validateLaunch()
 
     if (m_StreamConfig.width >= 3840) {
         // Only allow 4K on GFE 3.x+
-        if (m_Computer->gfeVersion.isNull() || m_Computer->gfeVersion.startsWith("2.")) {
-            emit displayLaunchWarning("GeForce Experience 3.0 or higher is required for 4K streaming.");
+        if (m_Computer->gfeVersion.isEmpty() || m_Computer->gfeVersion.startsWith("2.")) {
+            emitLaunchWarning("GeForce Experience 3.0 or higher is required for 4K streaming.");
 
             m_StreamConfig.width = 1920;
             m_StreamConfig.height = 1080;
@@ -376,15 +504,44 @@ bool Session::validateLaunch()
         // This list is sorted from least to greatest
         else if (m_Computer->displayModes.last().width < 3840 ||
                  (m_Computer->displayModes.last().refreshRate < 60 && m_StreamConfig.fps >= 60)) {
-            emit displayLaunchWarning("Your host PC GPU doesn't support 4K streaming. "
-                                      "A GeForce GTX 900-series (Maxwell) or later GPU is required for 4K streaming.");
+            emitLaunchWarning("Your host PC GPU doesn't support 4K streaming. "
+                              "A GeForce GTX 900-series (Maxwell) or later GPU is required for 4K streaming.");
 
             m_StreamConfig.width = 1920;
             m_StreamConfig.height = 1080;
         }
     }
 
-    // Always allow the launch to proceed for now
+    // Test that audio hardware is functional
+    m_AudioDisabled = !testAudio(m_StreamConfig.audioConfiguration);
+    if (m_AudioDisabled) {
+        emitLaunchWarning("Failed to open audio device. Audio will be unavailable during this session.");
+    }
+
+    if (m_Preferences.videoDecoderSelection == StreamingPreferences::VDS_FORCE_HARDWARE &&
+            !isHardwareDecodeAvailable(m_Preferences.videoDecoderSelection,
+                                       m_StreamConfig.supportsHevc ? VIDEO_FORMAT_H265 : VIDEO_FORMAT_H264,
+                                       m_StreamConfig.width,
+                                       m_StreamConfig.height,
+                                       m_StreamConfig.fps)) {
+        if (m_Preferences.videoCodecConfig == StreamingPreferences::VCC_AUTO) {
+            emit displayLaunchError("Your selection to force hardware decoding cannot be satisfied due to missing hardware decoding support on this PC's GPU.");
+        }
+        else {
+            emit displayLaunchError("Your codec selection and force hardware decoding setting are not compatible. This PC's GPU lacks support for decoding your chosen codec.");
+        }
+
+        // Fail the launch, because we won't manage to get a decoder for the actual stream
+        return false;
+    }
+
+    // Add the capability flags from the chosen decoder/renderer
+    m_VideoCallbacks.capabilities |= getDecoderCapabilities(m_Preferences.videoDecoderSelection,
+                                                            m_StreamConfig.supportsHevc ? VIDEO_FORMAT_H265 : VIDEO_FORMAT_H264,
+                                                            m_StreamConfig.width,
+                                                            m_StreamConfig.height,
+                                                            m_StreamConfig.fps);
+
     return true;
 }
 
@@ -402,113 +559,176 @@ class DeferredSessionCleanupTask : public QRunnable
     }
 };
 
-void Session::getWindowDimensions(bool fullScreen,
-                                  int& x, int& y,
+void Session::getWindowDimensions(int& x, int& y,
                                   int& width, int& height)
 {
     int displayIndex = 0;
 
     if (m_Window != nullptr) {
         displayIndex = SDL_GetWindowDisplayIndex(m_Window);
-        if (displayIndex < 0) {
-            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                         "SDL_GetWindowDisplayIndex() failed: %s",
-                         SDL_GetError());
-
-            // Assume display 0
-            displayIndex = 0;
-        }
-    }
-
-    if (fullScreen) {
-        SDL_DisplayMode currentMode;
-
-        if (SDL_GetCurrentDisplayMode(displayIndex, &currentMode) == 0) {
-            SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
-                        "Using current display mode: %dx%dx%d",
-                        currentMode.w, currentMode.h, currentMode.refresh_rate);
-            width = currentMode.w;
-            height = currentMode.h;
-        }
-        else {
-            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                         "Unable to get current display mode: %s",
-                         SDL_GetError());
-            width = m_StreamConfig.width;
-            height = m_StreamConfig.height;
-        }
-
-        // Full-screen modes always start at the origin
-        x = y = SDL_WINDOWPOS_UNDEFINED_DISPLAY(displayIndex);
+        SDL_assert(displayIndex >= 0);
     }
+    // Create our window on the same display that Qt's UI
+    // was being displayed on.
     else {
-        SDL_Rect usableBounds;
-        if (SDL_GetDisplayUsableBounds(displayIndex, &usableBounds) == 0) {
-            width = usableBounds.w;
-            height = usableBounds.h;
-            x = usableBounds.x;
-            y = usableBounds.y;
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "Qt UI screen is at (%d,%d)",
+                    m_DisplayOriginX, m_DisplayOriginY);
+        for (int i = 0; i < SDL_GetNumVideoDisplays(); i++) {
+            SDL_Rect displayBounds;
 
-            if (m_Window != nullptr) {
-                int top, left, bottom, right;
-
-                if (SDL_GetWindowBordersSize(m_Window, &top, &left, &bottom, &right) < 0) {
-                    SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
-                                "Unable to get window border size");
-                    return;
+            if (SDL_GetDisplayBounds(i, &displayBounds) == 0) {
+                if (displayBounds.x == m_DisplayOriginX &&
+                        displayBounds.y == m_DisplayOriginY) {
+                    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                                "SDL found matching display %d",
+                                i);
+                    displayIndex = i;
+                    break;
                 }
+            }
+            else {
+                SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                            "SDL_GetDisplayBounds(%d) failed: %s",
+                            i, SDL_GetError());
+            }
+        }
+    }
 
-                x += left;
-                y += top;
+    SDL_Rect usableBounds;
+    if (SDL_GetDisplayUsableBounds(displayIndex, &usableBounds) == 0) {
+        width = usableBounds.w;
+        height = usableBounds.h;
 
+        if (m_Window != nullptr) {
+            int top, left, bottom, right;
+
+            if (SDL_GetWindowBordersSize(m_Window, &top, &left, &bottom, &right) == 0) {
                 width -= left + right;
                 height -= top + bottom;
             }
-        }
-        else {
-            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                         "SDL_GetDisplayUsableBounds() failed: %s",
-                         SDL_GetError());
+            else {
+                SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                            "Unable to get window border size: %s",
+                            SDL_GetError());
+            }
 
-            width = m_StreamConfig.width;
-            height = m_StreamConfig.height;
-            x = y = SDL_WINDOWPOS_UNDEFINED_DISPLAY(displayIndex);
+            // If the stream window can fit within the usable drawing area with 1:1
+            // scaling, do that rather than filling the screen.
+            if (m_StreamConfig.width < width && m_StreamConfig.height < height) {
+                width = m_StreamConfig.width;
+                height = m_StreamConfig.height;
+            }
         }
     }
+    else {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "SDL_GetDisplayUsableBounds() failed: %s",
+                     SDL_GetError());
+
+        width = m_StreamConfig.width;
+        height = m_StreamConfig.height;
+    }
+
+    x = y = SDL_WINDOWPOS_CENTERED_DISPLAY(displayIndex);
+}
+
+void Session::updateOptimalWindowDisplayMode()
+{
+    SDL_DisplayMode desktopMode, bestMode, mode;
+    int displayIndex = SDL_GetWindowDisplayIndex(m_Window);
+
+    // Try the current display mode first. On macOS, this will be the normal
+    // scaled desktop resolution setting.
+    if (SDL_GetDesktopDisplayMode(displayIndex, &desktopMode) == 0) {
+        // If this doesn't fit the selected resolution, use the native
+        // resolution of the panel (unscaled).
+        if (desktopMode.w < m_ActiveVideoWidth || desktopMode.h < m_ActiveVideoHeight) {
+            if (!StreamUtils::getRealDesktopMode(displayIndex, &desktopMode)) {
+                return;
+            }
+        }
+    }
+    else {
+        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                    "SDL_GetDesktopDisplayMode() failed: %s",
+                    SDL_GetError());
+        return;
+    }
+
+    // Start with the native desktop resolution and try to find
+    // the highest refresh rate that our stream FPS evenly divides.
+    bestMode = desktopMode;
+    bestMode.refresh_rate = 0;
+    for (int i = 0; i < SDL_GetNumDisplayModes(displayIndex); i++) {
+        if (SDL_GetDisplayMode(displayIndex, i, &mode) == 0) {
+            if (mode.w == desktopMode.w && mode.h == desktopMode.h &&
+                    mode.refresh_rate % m_StreamConfig.fps == 0) {
+                if (mode.refresh_rate > bestMode.refresh_rate) {
+                    bestMode = mode;
+                }
+            }
+        }
+    }
+
+    if (bestMode.refresh_rate == 0) {
+        // We may find no match if the user has moved a 120 FPS
+        // stream onto a 60 Hz monitor (since no refresh rate can
+        // divide our FPS setting). We'll stick to the default in
+        // this case.
+        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                    "No matching refresh rate found; using desktop mode");
+        bestMode = desktopMode;
+    }
+
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Chosen best display mode: %dx%dx%d",
+                bestMode.w, bestMode.h, bestMode.refresh_rate);
+
+    SDL_SetWindowDisplayMode(m_Window, &bestMode);
 }
 
 void Session::toggleFullscreen()
 {
-    bool fullScreen = !(SDL_GetWindowFlags(m_Window) & SDL_OS_FULLSCREEN_FLAG);
-
-    int x, y, width, height;
-
-    // If we're leaving full screen, toggle out before setting our size and position
-    // that way we have accurate display size metrics (not the size our stream changed it to).
-    if (!fullScreen) {
-        SDL_SetWindowFullscreen(m_Window, 0);
-    }
-
-    getWindowDimensions(fullScreen, x, y, width, height);
-
-    SDL_SetWindowPosition(m_Window, x, y);
-    SDL_SetWindowSize(m_Window, width, height);
+    bool fullScreen = !(SDL_GetWindowFlags(m_Window) & m_FullScreenFlag);
 
     if (fullScreen) {
-        SDL_SetWindowFullscreen(m_Window, SDL_OS_FULLSCREEN_FLAG);
+        SDL_SetWindowResizable(m_Window, SDL_FALSE);
+        SDL_SetWindowFullscreen(m_Window, m_FullScreenFlag);
+    }
+    else {
+        SDL_SetWindowFullscreen(m_Window, 0);
+        SDL_SetWindowResizable(m_Window, SDL_TRUE);
+
+        // Reposition the window when the resize is complete
+        m_PendingWindowedTransition = true;
     }
 }
 
-void Session::exec()
+void Session::exec(int displayOriginX, int displayOriginY)
 {
+    m_DisplayOriginX = displayOriginX;
+    m_DisplayOriginY = displayOriginY;
+
+    // Complete initialization in this deferred context to avoid
+    // calling expensive functions in the constructor (during the
+    // process of loading the StreamSegue).
+    initialize();
+
     // Check for validation errors/warnings and emit
     // signals for them, if appropriate
     if (!validateLaunch()) {
         return;
     }
 
-    // Manually pump the UI thread for the view
-    QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
+    // Wait 1.5 seconds before connecting to let the user
+    // have time to read any messages present on the segue
+    uint32_t start = SDL_GetTicks();
+    while (!SDL_TICKS_PASSED(SDL_GetTicks(), start + 1500)) {
+        // Pump the UI loop while we wait
+        SDL_Delay(5);
+        QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
+    }
 
     // Wait for any old session to finish cleanup
     s_ActiveSessionSemaphore.acquire();
@@ -518,13 +738,25 @@ void Session::exec()
 
     // Initialize the gamepad code with our preferences
     StreamingPreferences prefs;
-    SdlInputHandler inputHandler(prefs.multiController);
+    SdlInputHandler inputHandler(prefs, m_Computer);
 
     // The UI should have ensured the old game was already quit
     // if we decide to stream a different game.
     Q_ASSERT(m_Computer->currentGameId == 0 ||
              m_Computer->currentGameId == m_App.id);
 
+    bool enableGameOptimizations = false;
+    for (const NvDisplayMode &mode : m_Computer->displayModes) {
+        if (mode.width == m_StreamConfig.width &&
+                mode.height == m_StreamConfig.height) {
+            SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                        "Found host supported resolution: %dx%d",
+                        mode.width, mode.height);
+            enableGameOptimizations = prefs.gameOptimizations;
+            break;
+        }
+    }
+
     try {
         NvHTTP http(m_Computer->activeAddress);
         if (m_Computer->currentGameId != 0) {
@@ -532,7 +764,7 @@ void Session::exec()
         }
         else {
             http.launchApp(m_App.id, &m_StreamConfig,
-                           prefs.gameOptimizations,
+                           enableGameOptimizations,
                            prefs.playAudioOnHost,
                            inputHandler.getAttachedGamepadMask());
         }
@@ -561,21 +793,22 @@ void Session::exec()
 
     // Older GFE versions didn't have this field
     QByteArray siGfeVersion;
-    if (!m_Computer->gfeVersion.isNull()) {
+    if (!m_Computer->gfeVersion.isEmpty()) {
         siGfeVersion = m_Computer->gfeVersion.toLatin1();
     }
-    if (!siGfeVersion.isNull()) {
+    if (!siGfeVersion.isEmpty()) {
         hostInfo.serverInfoGfeVersion = siGfeVersion.data();
     }
 
     int err = LiStartConnection(&hostInfo, &m_StreamConfig, &k_ConnCallbacks,
-                                &m_VideoCallbacks, &k_AudioCallbacks,
+                                &m_VideoCallbacks,
+                                m_AudioDisabled ? nullptr : &k_AudioCallbacks,
                                 NULL, 0, NULL, 0);
     if (err != 0) {
         // We already displayed an error dialog in the stage failure
         // listener.
-        s_ActiveSessionSemaphore.release();
         SDL_QuitSubSystem(SDL_INIT_VIDEO);
+        s_ActiveSessionSemaphore.release();
         return;
     }
 
@@ -584,33 +817,44 @@ void Session::exec()
     QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
 
     int x, y, width, height;
-    getWindowDimensions(m_Preferences.fullScreen,
-                        x, y, width, height);
+    getWindowDimensions(x, y, width, height);
 
     m_Window = SDL_CreateWindow("Moonlight",
                                 x,
                                 y,
                                 width,
                                 height,
-                                m_Preferences.fullScreen ?
-                                    SDL_OS_FULLSCREEN_FLAG : 0);
+                                SDL_WINDOW_ALLOW_HIGHDPI);
     if (!m_Window) {
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
                      "SDL_CreateWindow() failed: %s",
                      SDL_GetError());
-        s_ActiveSessionSemaphore.release();
         SDL_QuitSubSystem(SDL_INIT_VIDEO);
+        s_ActiveSessionSemaphore.release();
         return;
     }
 
     // For non-full screen windows, call getWindowDimensions()
     // again after creating a window to allow it to account
     // for window chrome size.
-    if (!m_Preferences.fullScreen) {
-        getWindowDimensions(false, x, y, width, height);
+    if (m_Preferences.windowMode == StreamingPreferences::WM_WINDOWED) {
+        getWindowDimensions(x, y, width, height);
 
-        SDL_SetWindowPosition(m_Window, x, y);
+        // We must set the size before the position because centering
+        // won't work unless it knows the final size of the window.
         SDL_SetWindowSize(m_Window, width, height);
+        SDL_SetWindowPosition(m_Window, x, y);
+
+        // Passing SDL_WINDOW_RESIZABLE to set this during window
+        // creation causes our window to be full screen for some reason
+        SDL_SetWindowResizable(m_Window, SDL_TRUE);
+    }
+    else {
+        // Update the window display mode based on our current monitor
+        updateOptimalWindowDisplayMode();
+
+        // Enter full screen
+        SDL_SetWindowFullscreen(m_Window, m_FullScreenFlag);
     }
 
     QSvgRenderer svgIconRenderer(QString(":/res/moonlight.svg"));
@@ -636,12 +880,31 @@ void Session::exec()
     // Capture the mouse by default on release builds only.
     // This prevents the mouse from becoming trapped inside
     // Moonlight when it's halted at a debug break.
-    SDL_SetRelativeMouseMode(SDL_TRUE);
+    if (m_Preferences.windowMode != StreamingPreferences::WM_WINDOWED) {
+        SDL_SetRelativeMouseMode(SDL_TRUE);
+    }
 #endif
 
+    // Stop text input. SDL enables it by default
+    // when we initialize the video subsystem, but this
+    // causes an IME popup when certain keys are held down
+    // on macOS.
+    SDL_StopTextInput();
+
     // Disable the screen saver
     SDL_DisableScreenSaver();
 
+#ifdef Q_OS_WIN32
+    // HACK: SDL doesn't call this, so we must do so to disable the
+    // screensaver when we're in windowed mode. DirectX will disable
+    // it for us when we're in full-screen exclusive mode.
+    SetThreadExecutionState(ES_CONTINUOUS | ES_DISPLAY_REQUIRED);
+#endif
+
+    // Set timer resolution to 1 ms on Windows for greater
+    // sleep precision and more accurate callback timing.
+    SDL_SetHint(SDL_HINT_TIMER_RESOLUTION, "1");
+
     // Raise the priority of the main thread, since it handles
     // time-sensitive video rendering
     if (SDL_SetThreadPriority(SDL_THREAD_PRIORITY_HIGH) < 0) {
@@ -650,10 +913,20 @@ void Session::exec()
                     SDL_GetError());
     }
 
+    int currentDisplayIndex = SDL_GetWindowDisplayIndex(m_Window);
+
     // Hijack this thread to be the SDL main thread. We have to do this
     // because we want to suspend all Qt processing until the stream is over.
     SDL_Event event;
-    while (SDL_WaitEvent(&event)) {
+    for (;;) {
+        // We explicitly use SDL_PollEvent() and SDL_Delay() because
+        // SDL_WaitEvent() has an internal SDL_Delay(10) inside which
+        // blocks this thread too long for high polling rate mice and high
+        // refresh rate displays.
+        if (!SDL_PollEvent(&event)) {
+            SDL_Delay(1);
+            continue;
+        }
         switch (event.type) {
         case SDL_QUIT:
             SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
@@ -680,31 +953,113 @@ void Session::exec()
         }
 
         case SDL_WINDOWEVENT:
+            // Capture mouse cursor when user actives the window by clicking on
+            // window's client area (borders and title bar excluded).
+            // Without this you would have to click the window twice (once to
+            // activate it, second time to enable capture). With this you need to
+            // click it only once.
+            // On Linux, the button press event is delivered after the focus gain
+            // so this is not neccessary (and leads to a click sent to the host
+            // when focusing the window by clicking).
+            // By excluding window's borders and title bar out, lets user still
+            // interact with them without mouse capture kicking in.
+#if defined(Q_OS_WIN32) || defined(Q_OS_DARWIN)
+            if (event.window.event == SDL_WINDOWEVENT_FOCUS_GAINED) {
+                int mouseX, mouseY;
+                Uint32 mouseState = SDL_GetGlobalMouseState(&mouseX, &mouseY);
+                if (mouseState & SDL_BUTTON(SDL_BUTTON_LEFT)) {
+                    int x, y, width, height;
+                    SDL_GetWindowPosition(m_Window, &x, &y);
+                    SDL_GetWindowSize(m_Window, &width, &height);
+                    if (mouseX > x && mouseX < x+width && mouseY > y && mouseY < y+height) {
+                        SDL_SetRelativeMouseMode(SDL_TRUE);
+                    }
+                }
+            }
+#endif
+
+            // Release mouse cursor when another window is activated (e.g. by using ALT+TAB).
+            // This lets user to interact with our window's title bar and with the buttons in it.
+            if (event.window.event == SDL_WINDOWEVENT_FOCUS_LOST) {
+                SDL_SetRelativeMouseMode(SDL_FALSE);
+            }
+
             // We want to recreate the decoder for resizes (full-screen toggles) and the initial shown event.
             // We use SDL_WINDOWEVENT_SIZE_CHANGED rather than SDL_WINDOWEVENT_RESIZED because the latter doesn't
             // seem to fire when switching from windowed to full-screen on X11.
             if (event.window.event != SDL_WINDOWEVENT_SIZE_CHANGED && event.window.event != SDL_WINDOWEVENT_SHOWN) {
-                break;
+                // Check that the window display hasn't changed. If it has, we want
+                // to recreate the decoder to allow it to adapt to the new display.
+                // This will allow Pacer to pull the new display refresh rate.
+                if (SDL_GetWindowDisplayIndex(m_Window) == currentDisplayIndex) {
+                    break;
+                }
+            }
+
+            // Complete any repositioning that was deferred until
+            // the resize from full-screen to windowed had completed.
+            // If we try to do this immediately, the resize won't take effect
+            // properly on Windows.
+            if (m_PendingWindowedTransition) {
+                m_PendingWindowedTransition = false;
+
+                int x, y, width, height;
+                getWindowDimensions(x, y, width, height);
+
+                SDL_SetWindowSize(m_Window, width, height);
+                SDL_SetWindowPosition(m_Window, x, y);
             }
 
             // Fall through
         case SDL_RENDER_DEVICE_RESET:
         case SDL_RENDER_TARGETS_RESET:
+
             SDL_AtomicLock(&m_DecoderLock);
 
             // Destroy the old decoder
             delete m_VideoDecoder;
 
-            // Chose a new decoder (hopefully the same one, but possibly
-            // not if a GPU was removed or something).
-            if (!chooseDecoder(m_Preferences.videoDecoderSelection,
-                               m_Window, m_ActiveVideoFormat, m_ActiveVideoWidth,
-                               m_ActiveVideoHeight, m_ActiveVideoFrameRate,
-                               s_ActiveSession->m_VideoDecoder)) {
-                SDL_AtomicUnlock(&m_DecoderLock);
-                SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                             "Failed to recreate decoder after reset");
-                goto DispatchDeferredCleanup;
+            // Flush any other pending window events that could
+            // send us back here immediately
+            SDL_PumpEvents();
+            SDL_FlushEvent(SDL_WINDOWEVENT);
+
+            // Update the window display mode based on our current monitor
+            currentDisplayIndex = SDL_GetWindowDisplayIndex(m_Window);
+            updateOptimalWindowDisplayMode();
+
+            // Now that the old decoder is dead, flush any events it may
+            // have queued to reset itself (if this reset was the result
+            // of state loss).
+            SDL_PumpEvents();
+            SDL_FlushEvent(SDL_RENDER_DEVICE_RESET);
+            SDL_FlushEvent(SDL_RENDER_TARGETS_RESET);
+
+            {
+                // If the stream exceeds the display refresh rate (plus some slack),
+                // forcefully disable V-sync to allow the stream to render faster
+                // than the display.
+                int displayHz = StreamUtils::getDisplayRefreshRate(m_Window);
+                bool enableVsync = m_Preferences.enableVsync;
+                if (displayHz + 5 < m_StreamConfig.fps) {
+                    SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                                "Disabling V-sync because refresh rate limit exceeded");
+                    enableVsync = false;
+                }
+
+                // Choose a new decoder (hopefully the same one, but possibly
+                // not if a GPU was removed or something).
+                if (!chooseDecoder(m_Preferences.videoDecoderSelection,
+                                   m_Window, m_ActiveVideoFormat, m_ActiveVideoWidth,
+                                   m_ActiveVideoHeight, m_ActiveVideoFrameRate,
+                                   enableVsync,
+                                   s_ActiveSession->m_VideoDecoder)) {
+                    SDL_AtomicUnlock(&m_DecoderLock);
+                    SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                                 "Failed to recreate decoder after reset");
+                    emit displayLaunchError("Unable to initialize video decoder. Please check your streaming settings and try again.");
+                    goto DispatchDeferredCleanup;
+                }
             }
 
             // Request an IDR frame to complete the reset
@@ -746,10 +1101,16 @@ void Session::exec()
                  SDL_GetError());
 
 DispatchDeferredCleanup:
+#ifdef Q_OS_WIN32
+    // HACK: See comment above
+    SetThreadExecutionState(ES_CONTINUOUS);
+#endif
+
     // Uncapture the mouse and hide the window immediately,
     // so we can return to the Qt GUI ASAP.
     SDL_SetRelativeMouseMode(SDL_FALSE);
     SDL_EnableScreenSaver();
+    SDL_SetHint(SDL_HINT_TIMER_RESOLUTION, "0");
 
     // Destroy the decoder, since this must be done on the main thread
     SDL_AtomicLock(&m_DecoderLock);
@@ -757,6 +1118,9 @@ DispatchDeferredCleanup:
     m_VideoDecoder = nullptr;
     SDL_AtomicUnlock(&m_DecoderLock);
 
+    // Destroy the audio renderer which must also be done on the main thread
+    cleanupAudioRendererOnMainThread();
+
     SDL_DestroyWindow(m_Window);
     if (iconSurface != nullptr) {
         SDL_FreeSurface(iconSurface);

app/streaming/session.hpp

@@ -8,6 +8,7 @@
 #include "settings/streamingpreferences.h"
 #include "input.hpp"
 #include "video/decoder.h"
+#include "audio/renderers/renderer.h"
 
 class Session : public QObject
 {
@@ -19,12 +20,16 @@ class Session : public QObject
 public:
     explicit Session(NvComputer* computer, NvApp& app);
 
-    Q_INVOKABLE void exec();
+    Q_INVOKABLE void exec(int displayOriginX, int displayOriginY);
 
     static
     bool isHardwareDecodeAvailable(StreamingPreferences::VideoDecoderSelection vds,
                                    int videoFormat, int width, int height, int frameRate);
 
+    static
+    int getDecoderCapabilities(StreamingPreferences::VideoDecoderSelection vds,
+                               int videoFormat, int width, int height, int frameRate);
+
 signals:
     void stageStarting(QString stage);
 
@@ -37,22 +42,33 @@ signals:
     void displayLaunchWarning(QString text);
 
 private:
+    void initialize();
+
     bool validateLaunch();
 
+    void emitLaunchWarning(QString text);
+
     int getDecoderCapabilities();
 
-    int sdlDetermineAudioConfiguration();
+    IAudioRenderer* createAudioRenderer();
 
-    void getWindowDimensions(bool fullScreen,
-                             int& x, int& y,
+    int detectAudioConfiguration();
+
+    void cleanupAudioRendererOnMainThread();
+
+    bool testAudio(int audioConfiguration);
+
+    void getWindowDimensions(int& x, int& y,
                              int& width, int& height);
 
     void toggleFullscreen();
 
+    void updateOptimalWindowDisplayMode();
+
     static
     bool chooseDecoder(StreamingPreferences::VideoDecoderSelection vds,
                        SDL_Window* window, int videoFormat, int width, int height,
-                       int frameRate, IVideoDecoder*& chosenDecoder);
+                       int frameRate, bool enableVsync, IVideoDecoder*& chosenDecoder);
 
     static
     void clStageStarting(int stage);
@@ -66,6 +82,17 @@ private:
     static
     void clLogMessage(const char* format, ...);
 
+    static
+    int arInit(int audioConfiguration,
+               const POPUS_MULTISTREAM_CONFIGURATION opusConfig,
+               void* arContext, int arFlags);
+
+    static
+    void arCleanup();
+
+    static
+    void arDecodeAndPlaySample(char* sampleData, int sampleLength);
+
     static
     int drSetup(int videoFormat, int width, int height, int frameRate, void*, int);
 
@@ -75,23 +102,6 @@ private:
     static
     int drSubmitDecodeUnit(PDECODE_UNIT du);
 
-    static
-    int sdlAudioInit(int audioConfiguration,
-                     POPUS_MULTISTREAM_CONFIGURATION opusConfig,
-                     void* arContext, int arFlags);
-
-    static
-    void sdlAudioStart();
-
-    static
-    void sdlAudioStop();
-
-    static
-    void sdlAudioCleanup();
-
-    static
-    void sdlAudioDecodeAndPlaySample(char* sampleData, int sampleLength);
-
     StreamingPreferences m_Preferences;
     STREAM_CONFIGURATION m_StreamConfig;
     DECODER_RENDERER_CALLBACKS m_VideoCallbacks;
@@ -101,20 +111,22 @@ private:
     IVideoDecoder* m_VideoDecoder;
     SDL_SpinLock m_DecoderLock;
     bool m_NeedsIdr;
+    bool m_AudioDisabled;
+    Uint32 m_FullScreenFlag;
+    int m_DisplayOriginX;
+    int m_DisplayOriginY;
+    bool m_PendingWindowedTransition;
 
     int m_ActiveVideoFormat;
     int m_ActiveVideoWidth;
     int m_ActiveVideoHeight;
     int m_ActiveVideoFrameRate;
 
-    static SDL_AudioDeviceID s_AudioDevice;
-    static OpusMSDecoder* s_OpusDecoder;
-    static short s_OpusDecodeBuffer[];
-    static int s_ChannelCount;
-    static int s_PendingDrops;
-    static int s_PendingHardDrops;
-    static unsigned int s_SampleIndex;
-    static Uint32 s_BaselinePendingData;
+    OpusMSDecoder* m_OpusDecoder;
+    short m_OpusDecodeBuffer[MAX_CHANNELS * SAMPLES_PER_FRAME];
+    IAudioRenderer* m_AudioRenderer;
+    OPUS_MULTISTREAM_CONFIGURATION m_AudioConfig;
+    SDL_SpinLock m_AudioRendererLock;
 
     static AUDIO_RENDERER_CALLBACKS k_AudioCallbacks;
     static CONNECTION_LISTENER_CALLBACKS k_ConnCallbacks;

app/streaming/streamutils.cpp

@@ -0,0 +1,127 @@
+#include "streamutils.h"
+
+#include <Qt>
+
+#ifdef Q_OS_DARWIN
+#include <ApplicationServices/ApplicationServices.h>
+#endif
+
+void StreamUtils::scaleSourceToDestinationSurface(SDL_Rect* src, SDL_Rect* dst)
+{
+    int dstH = dst->w * src->h / src->w;
+    int dstW = dst->h * src->w / src->h;
+
+    if (dstH > dst->h) {
+        dst->y = 0;
+        dst->x = (dst->w - dstW) / 2;
+        dst->w = dstW;
+        SDL_assert(dst->w * src->h / src->w <= dst->h);
+    }
+    else {
+        dst->x = 0;
+        dst->y = (dst->h - dstH) / 2;
+        dst->h = dstH;
+        SDL_assert(dst->h * src->w / src->h <= dst->w);
+    }
+}
+
+int StreamUtils::getDisplayRefreshRate(SDL_Window* window)
+{
+    int displayIndex = SDL_GetWindowDisplayIndex(window);
+    if (displayIndex < 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Failed to get current display: %s",
+                     SDL_GetError());
+
+        // Assume display 0 if it fails
+        displayIndex = 0;
+    }
+
+    SDL_DisplayMode mode;
+    if ((SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN_DESKTOP) == SDL_WINDOW_FULLSCREEN) {
+        // Use the window display mode for full-screen exclusive mode
+        if (SDL_GetWindowDisplayMode(window, &mode) != 0) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "SDL_GetWindowDisplayMode() failed: %s",
+                         SDL_GetError());
+
+            // Assume 60 Hz
+            return 60;
+        }
+    }
+    else {
+        // Use the current display mode for windowed and borderless
+        if (SDL_GetCurrentDisplayMode(displayIndex, &mode) != 0) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "SDL_GetCurrentDisplayMode() failed: %s",
+                         SDL_GetError());
+
+            // Assume 60 Hz
+            return 60;
+        }
+    }
+
+    // May be zero if undefined
+    if (mode.refresh_rate == 0) {
+        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                    "Refresh rate unknown; assuming 60 Hz");
+        mode.refresh_rate = 60;
+    }
+
+    return mode.refresh_rate;
+}
+
+bool StreamUtils::getRealDesktopMode(int displayIndex, SDL_DisplayMode* mode)
+{
+#ifdef Q_OS_DARWIN
+#define MAX_DISPLAYS 16
+    CGDirectDisplayID displayIds[MAX_DISPLAYS];
+    uint32_t displayCount = 0;
+    CGGetActiveDisplayList(MAX_DISPLAYS, displayIds, &displayCount);
+    if (displayIndex >= displayCount) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Too many displays: %d vs %d",
+                     displayIndex, displayCount);
+        return false;
+    }
+
+    SDL_zerop(mode);
+
+    // Retina displays have non-native resolutions both below and above (!) their
+    // native resolution, so it's impossible for us to figure out what's actually
+    // native on macOS using the SDL API alone. We'll talk to CoreGraphics to
+    // find the correct resolution and match it in our SDL list.
+    CFArrayRef modeList = CGDisplayCopyAllDisplayModes(displayIds[displayIndex], nullptr);
+    CFIndex count = CFArrayGetCount(modeList);
+    for (CFIndex i = 0; i < count; i++) {
+        auto cgMode = (CGDisplayModeRef)(CFArrayGetValueAtIndex(modeList, i));
+        if ((CGDisplayModeGetIOFlags(cgMode) & kDisplayModeNativeFlag) != 0) {
+            mode->w = static_cast<int>(CGDisplayModeGetWidth(cgMode));
+            mode->h = static_cast<int>(CGDisplayModeGetHeight(cgMode));
+            break;
+        }
+    }
+    CFRelease(modeList);
+
+    // Now find the SDL mode that matches the CG native mode
+    for (int i = 0; i < SDL_GetNumDisplayModes(displayIndex); i++) {
+        SDL_DisplayMode thisMode;
+        if (SDL_GetDisplayMode(displayIndex, i, &thisMode) == 0) {
+            if (thisMode.w == mode->w && thisMode.h == mode->h &&
+                    thisMode.refresh_rate >= mode->refresh_rate) {
+                *mode = thisMode;
+                break;
+            }
+        }
+    }
+#else
+    if (SDL_GetDesktopDisplayMode(displayIndex, mode) != 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "SDL_GetDesktopDisplayMode() failed: %s",
+                     SDL_GetError());
+        return false;
+    }
+#endif
+
+    return true;
+}

app/streaming/streamutils.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <SDL.h>
+
+class StreamUtils
+{
+public:
+    static
+    void scaleSourceToDestinationSurface(SDL_Rect* src, SDL_Rect* dst);
+
+    static
+    bool getRealDesktopMode(int displayIndex, SDL_DisplayMode* mode);
+
+    static
+    int getDisplayRefreshRate(SDL_Window* window);
+};

app/streaming/video/decoder.h

@@ -16,8 +16,10 @@ public:
                             int videoFormat,
                             int width,
                             int height,
-                            int frameRate) = 0;
+                            int frameRate,
+                            bool enableVsync) = 0;
     virtual bool isHardwareAccelerated() = 0;
+    virtual int getDecoderCapabilities() = 0;
     virtual int submitDecodeUnit(PDECODE_UNIT du) = 0;
     virtual void renderFrame(SDL_UserEvent* event) = 0;
     virtual void dropFrame(SDL_UserEvent* event) = 0;

app/streaming/video/ffmpeg-renderers/dxva2.cpp

@@ -1,5 +1,14 @@
 #include <initguid.h>
 #include "dxva2.h"
+#include "../ffmpeg.h"
+#include <streaming/streamutils.h>
+
+#include <SDL_syswm.h>
+
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#include <VersionHelpers.h>
+#include <dwmapi.h>
 
 #include <Limelight.h>
 
@@ -8,7 +17,6 @@ DEFINE_GUID(DXVADDI_Intel_ModeH264_E, 0x604F8E68,0x4951,0x4C54,0x88,0xFE,0xAB,0x
 #define SAFE_COM_RELEASE(x) if (x) { (x)->Release(); }
 
 DXVA2Renderer::DXVA2Renderer() :
-    m_SdlRenderer(nullptr),
     m_DecService(nullptr),
     m_Decoder(nullptr),
     m_SurfacesUsed(0),
@@ -21,10 +29,15 @@ DXVA2Renderer::DXVA2Renderer() :
 {
     RtlZeroMemory(m_DecSurfaces, sizeof(m_DecSurfaces));
     RtlZeroMemory(&m_DXVAContext, sizeof(m_DXVAContext));
+
+    // Use MMCSS scheduling for lower scheduling latency while we're streaming
+    DwmEnableMMCSS(TRUE);
 }
 
 DXVA2Renderer::~DXVA2Renderer()
 {
+    DwmEnableMMCSS(FALSE);
+
     SAFE_COM_RELEASE(m_DecService);
     SAFE_COM_RELEASE(m_Decoder);
     SAFE_COM_RELEASE(m_Device);
@@ -39,10 +52,6 @@ DXVA2Renderer::~DXVA2Renderer()
     if (m_Pool != nullptr) {
         av_buffer_pool_uninit(&m_Pool);
     }
-
-    if (m_SdlRenderer != nullptr) {
-        SDL_DestroyRenderer(m_SdlRenderer);
-    }
 }
 
 void DXVA2Renderer::ffPoolDummyDelete(void*, uint8_t*)
@@ -75,11 +84,8 @@ bool DXVA2Renderer::prepareDecoderContext(AVCodecContext* context)
 
     context->hwaccel_context = &m_DXVAContext;
 
-    context->get_format = ffGetFormat;
     context->get_buffer2 = ffGetBuffer2;
 
-    context->opaque = this;
-
     m_Pool = av_buffer_pool_init2(ARRAYSIZE(m_DecSurfaces), this, ffPoolAlloc, nullptr);
     if (!m_Pool) {
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
@@ -87,12 +93,15 @@ bool DXVA2Renderer::prepareDecoderContext(AVCodecContext* context)
         return false;
     }
 
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Using DXVA2 accelerated renderer");
+
     return true;
 }
 
 int DXVA2Renderer::ffGetBuffer2(AVCodecContext* context, AVFrame* frame, int)
 {
-    DXVA2Renderer* me = reinterpret_cast<DXVA2Renderer*>(context->opaque);
+    DXVA2Renderer* me = (DXVA2Renderer*)((FFmpegVideoDecoder*)context->opaque)->getRenderer();
 
     frame->buf[0] = av_buffer_pool_get(me->m_Pool);
     if (!frame->buf[0]) {
@@ -107,25 +116,14 @@ int DXVA2Renderer::ffGetBuffer2(AVCodecContext* context, AVFrame* frame, int)
     return 0;
 }
 
-enum AVPixelFormat DXVA2Renderer::ffGetFormat(AVCodecContext*,
-                                              const enum AVPixelFormat* pixFmts)
-{
-    const enum AVPixelFormat *p;
-
-    for (p = pixFmts; *p != -1; p++) {
-        if (*p == AV_PIX_FMT_DXVA2_VLD)
-            return *p;
-    }
-
-    SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                 "Failed to find DXVA2 HW surface format");
-    return AV_PIX_FMT_NONE;
-}
-
 bool DXVA2Renderer::initializeDecoder()
 {
     HRESULT hr;
 
+    if (isDecoderBlacklisted()) {
+        return false;
+    }
+
     hr = DXVA2CreateVideoService(m_Device, IID_IDirectXVideoDecoderService,
                                  reinterpret_cast<void**>(&m_DecService));
     if (FAILED(hr)) {
@@ -208,18 +206,11 @@ bool DXVA2Renderer::initializeDecoder()
         return false;
     }
 
-    int alignment;
-
-    // HEVC using DXVA requires 128B alignment
-    if (m_VideoFormat & VIDEO_FORMAT_MASK_H265) {
-        alignment = 128;
-    }
-    else {
-        alignment = 16;
-    }
-
-    hr = m_DecService->CreateSurface(FFALIGN(m_VideoWidth, alignment),
-                                     FFALIGN(m_VideoHeight, alignment),
+    // Alignment was already taken care of
+    SDL_assert(m_Desc.SampleWidth % 16 == 0);
+    SDL_assert(m_Desc.SampleHeight % 16 == 0);
+    hr = m_DecService->CreateSurface(m_Desc.SampleWidth,
+                                     m_Desc.SampleHeight,
                                      ARRAYSIZE(m_DecSurfaces) - 1,
                                      m_Desc.Format,
                                      D3DPOOL_DEFAULT,
@@ -349,37 +340,289 @@ bool DXVA2Renderer::initializeRenderer()
     return true;
 }
 
-bool DXVA2Renderer::initialize(SDL_Window* window, int videoFormat, int width, int height)
+bool DXVA2Renderer::isDecoderBlacklisted()
+{
+    IDirect3D9* d3d9;
+    HRESULT hr;
+    bool result = false;
+
+    // TODO: Update for HEVC Main10
+    SDL_assert(m_VideoFormat != VIDEO_FORMAT_H265_MAIN10);
+
+    hr = m_Device->GetDirect3D(&d3d9);
+    if (SUCCEEDED(hr)) {
+        D3DCAPS9 caps;
+
+        hr = m_Device->GetDeviceCaps(&caps);
+        if (SUCCEEDED(hr)) {
+            D3DADAPTER_IDENTIFIER9 id;
+
+            hr = d3d9->GetAdapterIdentifier(caps.AdapterOrdinal, 0, &id);
+            if (SUCCEEDED(hr)) {
+                SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                            "Detected GPU: %s (%x:%x)",
+                            id.Description,
+                            id.VendorId,
+                            id.DeviceId);
+                SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                            "GPU driver: %s %d.%d.%d.%d",
+                            id.Driver,
+                            HIWORD(id.DriverVersion.HighPart),
+                            LOWORD(id.DriverVersion.HighPart),
+                            HIWORD(id.DriverVersion.LowPart),
+                            LOWORD(id.DriverVersion.LowPart));
+
+                if (id.VendorId == 0x8086) {
+                    // Intel seems to encode the series in the high byte of
+                    // the device ID. We want to avoid the "Partial" acceleration
+                    // support explicitly. Those will claim to have HW acceleration
+                    // but perform badly.
+                    // https://en.wikipedia.org/wiki/Intel_Graphics_Technology#Capabilities_(GPU_video_acceleration)
+                    // https://raw.githubusercontent.com/GameTechDev/gpudetect/master/IntelGfx.cfg
+                    switch (id.DeviceId & 0xFF00) {
+                    case 0x0400: // Haswell
+                    case 0x0A00: // Haswell
+                    case 0x0D00: // Haswell
+                    case 0x1600: // Broadwell
+                    case 0x2200: // Cherry Trail and Braswell
+                        // Blacklist these for HEVC to avoid hybrid decode
+                        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                                    "GPU blacklisted for HEVC due to hybrid decode");
+                        result = (m_VideoFormat & VIDEO_FORMAT_MASK_H265) != 0;
+                        break;
+                    default:
+                        // Intel drivers from before late-2017 had a bug that caused some strange artifacts
+                        // when decoding HEVC. Avoid HEVC on drivers prior to build 4836 which I confirmed
+                        // is not affected on my Intel HD 515.
+                        // https://github.com/moonlight-stream/moonlight-qt/issues/32
+                        // https://www.intel.com/content/www/us/en/support/articles/000005654/graphics-drivers.html
+                        if (LOWORD(id.DriverVersion.LowPart) < 4836) {
+                            SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                                        "Intel driver version blacklisted for HEVC");
+                            result = (m_VideoFormat & VIDEO_FORMAT_MASK_H265) != 0;
+                        }
+                        else {
+                            // Everything else is fine with whatever it says it supports
+                            result = false;
+                        }
+                        break;
+                    }
+                }
+                else if (id.VendorId == 0x10DE) {
+                    // For NVIDIA, we wait to avoid those GPUs with Feature Set E
+                    // for HEVC decoding, since that's hybrid. It appears that Kepler GPUs
+                    // also had some hybrid decode support (per DXVA2 Checker) so we'll
+                    // blacklist those too.
+                    // https://en.wikipedia.org/wiki/Nvidia_PureVideo
+                    // https://bluesky23.yukishigure.com/en/dxvac/deviceInfo/decoder.html
+                    // http://envytools.readthedocs.io/en/latest/hw/pciid.html (missing GM200)
+                    if ((id.DeviceId >= 0x1180 && id.DeviceId <= 0x11BF) || // GK104
+                            (id.DeviceId >= 0x11C0 && id.DeviceId <= 0x11FF) || // GK106
+                            (id.DeviceId >= 0x0FC0 && id.DeviceId <= 0x0FFF) || // GK107
+                            (id.DeviceId >= 0x1000 && id.DeviceId <= 0x103F) || // GK110/GK110B
+                            (id.DeviceId >= 0x1280 && id.DeviceId <= 0x12BF) || // GK208
+                            (id.DeviceId >= 0x1340 && id.DeviceId <= 0x137F) || // GM108
+                            (id.DeviceId >= 0x1380 && id.DeviceId <= 0x13BF) || // GM107
+                            (id.DeviceId >= 0x13C0 && id.DeviceId <= 0x13FF) || // GM204
+                            (id.DeviceId >= 0x1617 && id.DeviceId <= 0x161A) || // GM204
+                            (id.DeviceId == 0x1667) || // GM204
+                            (id.DeviceId >= 0x17C0 && id.DeviceId <= 0x17FF)) { // GM200
+                        // Avoid HEVC on Feature Set E GPUs
+                        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                                    "GPU blacklisted for HEVC due to hybrid decode");
+                        result = (m_VideoFormat & VIDEO_FORMAT_MASK_H265) != 0;
+                    }
+                    else {
+                        result = false;
+                    }
+                }
+                else if (id.VendorId == 0x1002) {
+                    // AMD doesn't seem to do hybrid acceleration?
+                    result = false;
+                }
+                else {
+                    SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                                "Unrecognized vendor ID: %x",
+                                id.VendorId);
+                }
+            }
+        }
+        else {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "GetDeviceCaps() failed: %x", hr);
+        }
+
+        d3d9->Release();
+    }
+    else {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "GetDirect3D() failed: %x", hr);
+    }
+
+    if (result) {
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "GPU blacklisted for format %x",
+                    m_VideoFormat);
+    }
+
+    return result;
+}
+
+bool DXVA2Renderer::initializeDevice(SDL_Window* window, bool enableVsync)
+{
+    SDL_SysWMinfo info;
+
+    SDL_VERSION(&info.version);
+    SDL_GetWindowWMInfo(window, &info);
+
+    IDirect3D9Ex* d3d9ex;
+    HRESULT hr = Direct3DCreate9Ex(D3D_SDK_VERSION, &d3d9ex);
+    if (FAILED(hr)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Direct3DCreate9Ex() failed: %x",
+                     hr);
+        return false;
+    }
+
+    int adapterIndex = SDL_Direct3D9GetAdapterIndex(SDL_GetWindowDisplayIndex(window));
+    Uint32 windowFlags = SDL_GetWindowFlags(window);
+
+    D3DCAPS9 deviceCaps;
+    d3d9ex->GetDeviceCaps(adapterIndex, D3DDEVTYPE_HAL, &deviceCaps);
+
+    D3DDISPLAYMODEEX currentMode;
+    currentMode.Size = sizeof(currentMode);
+    d3d9ex->GetAdapterDisplayModeEx(adapterIndex, &currentMode, nullptr);
+
+    D3DPRESENT_PARAMETERS d3dpp = {};
+    d3dpp.hDeviceWindow = info.info.win.window;
+    d3dpp.Flags = D3DPRESENTFLAG_VIDEO;
+
+    if ((windowFlags & SDL_WINDOW_FULLSCREEN_DESKTOP) == SDL_WINDOW_FULLSCREEN) {
+        d3dpp.Windowed = false;
+        d3dpp.BackBufferWidth = currentMode.Width;
+        d3dpp.BackBufferHeight = currentMode.Height;
+        d3dpp.FullScreen_RefreshRateInHz = currentMode.RefreshRate;
+        d3dpp.BackBufferFormat = currentMode.Format;
+    }
+    else {
+        d3dpp.Windowed = true;
+        d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
+
+        SDL_GetWindowSize(window, (int*)&d3dpp.BackBufferWidth, (int*)&d3dpp.BackBufferHeight);
+    }
+
+    BOOL dwmEnabled;
+    DwmIsCompositionEnabled(&dwmEnabled);
+    if (d3dpp.Windowed && dwmEnabled) {
+        // If composition enabled, disable v-sync and let DWM manage things
+        // to reduce latency by avoiding double v-syncing.
+        d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
+
+        // If V-sync is enabled (not rendering faster than display),
+        // we can use FlipEx for more efficient swapping.
+        if (enableVsync) {
+            // D3DSWAPEFFECT_FLIPEX requires at least 2 back buffers to allow us to
+            // continue while DWM is waiting to render the surface to the display.
+            d3dpp.SwapEffect = D3DSWAPEFFECT_FLIPEX;
+            d3dpp.BackBufferCount = 2;
+        }
+        else {
+            // With V-sync off, we won't use FlipEx because that will block while
+            // DWM is waiting to render our surface (effectively behaving like V-Sync).
+            d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
+            d3dpp.BackBufferCount = 1;
+        }
+
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "Windowed mode with DWM running");
+    }
+    else if (enableVsync) {
+        // Uncomposited desktop or full-screen exclusive mode with V-sync enabled
+        // We will enable V-sync in this scenario to avoid tearing.
+        d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_ONE;
+        d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
+        d3dpp.BackBufferCount = 1;
+
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "V-Sync enabled");
+    }
+    else {
+        // Uncomposited desktop or full-screen exclusive mode with V-sync disabled
+        // We will allowing tearing for lowest latency.
+        d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
+        d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
+        d3dpp.BackBufferCount = 1;
+
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "V-Sync disabled in tearing mode");
+    }
+
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Windowed: %d | Present Interval: %x",
+                d3dpp.Windowed, d3dpp.PresentationInterval);
+
+    // FFmpeg requires this attribute for doing asynchronous decoding
+    // in a separate thread with this device.
+    int deviceFlags = D3DCREATE_MULTITHREADED;
+
+    if (deviceCaps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT) {
+        deviceFlags |= D3DCREATE_HARDWARE_VERTEXPROCESSING;
+    }
+    else {
+        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                    "No hardware vertex processing support!");
+        deviceFlags |= D3DCREATE_SOFTWARE_VERTEXPROCESSING;
+    }
+
+    hr = d3d9ex->CreateDeviceEx(adapterIndex,
+                                D3DDEVTYPE_HAL,
+                                d3dpp.hDeviceWindow,
+                                deviceFlags,
+                                &d3dpp,
+                                d3dpp.Windowed ? nullptr : &currentMode,
+                                &m_Device);
+
+    d3d9ex->Release();
+
+    if (FAILED(hr)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "CreateDeviceEx() failed: %x",
+                     hr);
+        return false;
+    }
+
+    hr = m_Device->SetMaximumFrameLatency(1);
+    if (FAILED(hr)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "SetMaximumFrameLatency() failed: %x",
+                     hr);
+        return false;
+    }
+
+    return true;
+}
+
+bool DXVA2Renderer::initialize(SDL_Window* window, int videoFormat, int width, int height, int, bool enableVsync)
 {
     m_VideoFormat = videoFormat;
     m_VideoWidth = width;
     m_VideoHeight = height;
 
-    // FFmpeg will be decoding on different threads than the main thread that we're
-    // currently running on right now. We must set this hint so SDL will pass
-    // D3DCREATE_MULTITHREADED to IDirect3D9::CreateDevice().
-    SDL_SetHint(SDL_HINT_RENDER_DIRECT3D_THREADSAFE, "1");
+    RtlZeroMemory(&m_Desc, sizeof(m_Desc));
 
-    // We require full-screen desktop mode to avoid having to enable V-sync
-    // to synchronize frame delivery (which has a much higher latency penalty).
-    m_SdlRenderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
-    if (!m_SdlRenderer) {
-        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                     "SDL_CreateRenderer() failed: %s",
-                     SDL_GetError());
-        return false;
+    int alignment;
+
+    // HEVC using DXVA requires 128B alignment
+    if (m_VideoFormat & VIDEO_FORMAT_MASK_H265) {
+        alignment = 128;
+    }
+    else {
+        alignment = 16;
     }
 
-    m_Device = SDL_RenderGetD3D9Device(m_SdlRenderer);
-
-    // Draw a black frame until the video stream starts rendering
-    SDL_SetRenderDrawColor(m_SdlRenderer, 0, 0, 0, SDL_ALPHA_OPAQUE);
-    SDL_RenderClear(m_SdlRenderer);
-    SDL_RenderPresent(m_SdlRenderer);
-
-    RtlZeroMemory(&m_Desc, sizeof(m_Desc));
-    m_Desc.SampleWidth = m_VideoWidth;
-    m_Desc.SampleHeight = m_VideoHeight;
+    m_Desc.SampleWidth = FFALIGN(m_VideoWidth, alignment);
+    m_Desc.SampleHeight = FFALIGN(m_VideoHeight, alignment);
     m_Desc.SampleFormat.VideoChromaSubsampling = DXVA2_VideoChromaSubsampling_Unknown;
     m_Desc.SampleFormat.NominalRange = DXVA2_NominalRange_Unknown;
     m_Desc.SampleFormat.VideoTransferMatrix = DXVA2_VideoTransferMatrix_Unknown;
@@ -389,6 +632,10 @@ bool DXVA2Renderer::initialize(SDL_Window* window, int videoFormat, int width, i
     m_Desc.SampleFormat.SampleFormat = DXVA2_SampleProgressiveFrame;
     m_Desc.Format = (D3DFORMAT)MAKEFOURCC('N','V','1','2');
 
+    if (!initializeDevice(window, enableVsync)) {
+        return false;
+    }
+
     if (!initializeDecoder()) {
         return false;
     }
@@ -397,10 +644,34 @@ bool DXVA2Renderer::initialize(SDL_Window* window, int videoFormat, int width, i
         return false;
     }
 
+    // For some reason, using Direct3D9Ex breaks this with multi-monitor setups.
+    // When focus is lost, the window is minimized then immediately restored without
+    // input focus. This glitches out the renderer and a bunch of other stuff.
+    // Direct3D9Ex itself seems to have this minimize on focus loss behavior on its
+    // own, so just disable SDL's handling of the focus loss event.
+    SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, "0");
+
     return true;
 }
 
-void DXVA2Renderer::renderFrame(AVFrame* frame)
+bool DXVA2Renderer::needsTestFrame()
+{
+    // We validate the DXVA2 profiles are supported
+    // in initialize() so no test frame is required
+    return false;
+}
+
+int DXVA2Renderer::getDecoderCapabilities()
+{
+    return 0;
+}
+
+IFFmpegRenderer::VSyncConstraint DXVA2Renderer::getVsyncConstraint()
+{
+    return VSYNC_ANY;
+}
+
+void DXVA2Renderer::renderFrameAtVsync(AVFrame *frame)
 {
     IDirect3DSurface9* surface = reinterpret_cast<IDirect3DSurface9*>(frame->data[3]);
     HRESULT hr;
@@ -500,28 +771,26 @@ void DXVA2Renderer::renderFrame(AVFrame* frame)
     sample.Start = m_FrameIndex;
     sample.End = m_FrameIndex + 1;
     sample.SrcSurface = surface;
-    sample.SrcRect.right = m_Desc.SampleWidth;
-    sample.SrcRect.bottom = m_Desc.SampleHeight;
+    sample.SrcRect.right = m_VideoWidth;
+    sample.SrcRect.bottom = m_VideoHeight;
     sample.SampleFormat = m_Desc.SampleFormat;
     sample.PlanarAlpha = DXVA2_Fixed32OpaqueAlpha();
 
     // Center in frame and preserve aspect ratio
-    double srcAspectRatio = (double)m_Desc.SampleWidth / (double)m_Desc.SampleHeight;
-    double dstAspectRatio = (double)m_DisplayWidth / (double)m_DisplayHeight;
-    if (dstAspectRatio < srcAspectRatio) {
-        // Greater height per width
-        int drawHeight = (int)(m_DisplayWidth / srcAspectRatio);
-        sample.DstRect.top = (m_DisplayHeight - drawHeight) / 2;
-        sample.DstRect.bottom = sample.DstRect.bottom + drawHeight;
-        sample.DstRect.right = m_DisplayWidth;
-    }
-    else {
-        // Greater width per height
-        int drawWidth = (int)(m_DisplayHeight * srcAspectRatio);
-        sample.DstRect.bottom = m_DisplayHeight;
-        sample.DstRect.left = (m_DisplayWidth - drawWidth) / 2;
-        sample.DstRect.right = sample.DstRect.left + drawWidth;
-    }
+    SDL_Rect src, dst;
+    src.x = src.y = 0;
+    src.w = m_VideoWidth;
+    src.h = m_VideoHeight;
+    dst.x = dst.y = 0;
+    dst.w = m_DisplayWidth;
+    dst.h = m_DisplayHeight;
+
+    StreamUtils::scaleSourceToDestinationSurface(&src, &dst);
+
+    sample.DstRect.left = dst.x;
+    sample.DstRect.right = dst.x + dst.w;
+    sample.DstRect.top = dst.y;
+    sample.DstRect.bottom = dst.y + dst.h;
 
     DXVA2_VideoProcessBltParams bltParams = {};
 
@@ -538,33 +807,27 @@ void DXVA2Renderer::renderFrame(AVFrame* frame)
 
     bltParams.Alpha = DXVA2_Fixed32OpaqueAlpha();
 
-    if (SDL_RenderClear(m_SdlRenderer) != 0) {
-        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
-                    "SDL_RenderClear() failed: %s",
-                    SDL_GetError());
-        av_frame_free(&frame);
-
-        // We're going to cheat a little bit here. It seems SDL's
-        // renderer may flake out in scenarios like moving the window
-        // between monitors, so generate a synthetic reset event for
-        // the main loop to consume.
-        SDL_Event event;
-        event.type = SDL_RENDER_TARGETS_RESET;
-        SDL_PushEvent(&event);
-
-        return;
-    }
+    m_Device->Clear(0, nullptr, D3DCLEAR_TARGET, D3DCOLOR_ARGB(255, 0, 0, 0), 0.0f, 0);
 
     hr = m_Processor->VideoProcessBlt(m_RenderTarget, &bltParams, &sample, 1, nullptr);
-    av_frame_free(&frame);
-
     if (FAILED(hr)) {
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
                      "VideoProcessBlt() failed: %x",
                      hr);
+        SDL_Event event;
+        event.type = SDL_RENDER_TARGETS_RESET;
+        SDL_PushEvent(&event);
+        return;
     }
 
-    // We must try to present to trigger SDL's logic to recover the render target,
-    // even if VideoProcessBlt() fails.
-    SDL_RenderPresent(m_SdlRenderer);
+    hr = m_Device->PresentEx(nullptr, nullptr, nullptr, nullptr, 0);
+    if (FAILED(hr)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "PresentEx() failed: %x",
+                     hr);
+        SDL_Event event;
+        event.type = SDL_RENDER_TARGETS_RESET;
+        SDL_PushEvent(&event);
+        return;
+    }
 }

app/streaming/video/ffmpeg-renderers/dxva2.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "renderer.h"
+#include "pacer/pacer.h"
 
 #include <d3d9.h>
 #include <dxva2api.h>
@@ -17,13 +18,20 @@ public:
     virtual bool initialize(SDL_Window* window,
                             int videoFormat,
                             int width,
-                            int height);
+                            int height,
+                            int maxFps,
+                            bool enableVsync);
     virtual bool prepareDecoderContext(AVCodecContext* context);
-    virtual void renderFrame(AVFrame* frame);
+    virtual void renderFrameAtVsync(AVFrame* frame);
+    virtual bool needsTestFrame();
+    virtual int getDecoderCapabilities();
+    virtual VSyncConstraint getVsyncConstraint();
 
 private:
     bool initializeDecoder();
     bool initializeRenderer();
+    bool initializeDevice(SDL_Window* window, bool enableVsync);
+    bool isDecoderBlacklisted();
 
     static
     AVBufferRef* ffPoolAlloc(void* opaque, int size);
@@ -34,10 +42,6 @@ private:
     static
     int ffGetBuffer2(AVCodecContext* context, AVFrame* frame, int flags);
 
-    static
-    enum AVPixelFormat ffGetFormat(AVCodecContext*,
-                                   const enum AVPixelFormat* pixFmts);
-
     int m_VideoFormat;
     int m_VideoWidth;
     int m_VideoHeight;
@@ -45,8 +49,6 @@ private:
     int m_DisplayWidth;
     int m_DisplayHeight;
 
-    SDL_Renderer* m_SdlRenderer;
-
     struct dxva_context m_DXVAContext;
     IDirect3DSurface9* m_DecSurfaces[19];
     DXVA2_ConfigPictureDecode m_Config;
@@ -55,7 +57,7 @@ private:
     int m_SurfacesUsed;
     AVBufferPool* m_Pool;
 
-    IDirect3DDevice9* m_Device;
+    IDirect3DDevice9Ex* m_Device;
     IDirect3DSurface9* m_RenderTarget;
     IDirectXVideoProcessorService* m_ProcService;
     IDirectXVideoProcessor* m_Processor;

app/streaming/video/ffmpeg-renderers/pacer/displaylinkvsyncsource.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "pacer.h"
+
+class DisplayLinkVsyncSourceFactory
+{
+public:
+    static
+    IVsyncSource* createVsyncSource(Pacer* pacer);
+};
+

app/streaming/video/ffmpeg-renderers/pacer/displaylinkvsyncsource.mm

@@ -0,0 +1,132 @@
+#include "displaylinkvsyncsource.h"
+
+#include <SDL_syswm.h>
+
+#include <CoreVideo/CoreVideo.h>
+
+#import <Cocoa/Cocoa.h>
+
+class DisplayLinkVsyncSource : public IVsyncSource
+{
+public:
+    DisplayLinkVsyncSource(Pacer* pacer)
+        : m_Pacer(pacer),
+          m_DisplayLink(nullptr)
+    {
+
+    }
+
+    virtual ~DisplayLinkVsyncSource() override
+    {
+        if (m_DisplayLink != nullptr) {
+            CVDisplayLinkStop(m_DisplayLink);
+            CVDisplayLinkRelease(m_DisplayLink);
+        }
+    }
+
+    static
+    CGDirectDisplayID
+    getDisplayID(NSScreen* screen)
+    {
+        NSNumber* screenNumber = [screen deviceDescription][@"NSScreenNumber"];
+        return [screenNumber unsignedIntValue];
+    }
+
+    static
+    CVReturn
+    displayLinkOutputCallback(
+        CVDisplayLinkRef displayLink,
+        const CVTimeStamp* /* now */,
+        const CVTimeStamp* /* vsyncTime */,
+        CVOptionFlags,
+        CVOptionFlags*,
+        void *displayLinkContext)
+    {
+        auto me = reinterpret_cast<DisplayLinkVsyncSource*>(displayLinkContext);
+
+        SDL_assert(displayLink == me->m_DisplayLink);
+
+        // In my testing on macOS 10.13, this callback is invoked about 24 ms
+        // prior to the specified v-sync time (now - vsyncTime). Since this is
+        // greater than the standard v-sync interval (16 ms = 60 FPS), we will
+        // draw using the current host time, rather than the actual v-sync target
+        // time. Because the CVDisplayLink is in sync with the actual v-sync
+        // interval, even if many ms prior, we can safely use the current host time
+        // and get a consistent callback for each v-sync. This reduces video latency
+        // by at least 1 frame vs. rendering with the actual vsyncTime.
+        me->m_Pacer->vsyncCallback(500 / me->m_DisplayFps);
+
+        return kCVReturnSuccess;
+    }
+
+    virtual bool initialize(SDL_Window* window, int displayFps) override
+    {
+        SDL_SysWMinfo info;
+
+        SDL_VERSION(&info.version);
+
+        if (!SDL_GetWindowWMInfo(window, &info)) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "SDL_GetWindowWMInfo() failed: %s",
+                         SDL_GetError());
+            return false;
+        }
+
+        SDL_assert(info.subsystem == SDL_SYSWM_COCOA);
+
+        m_DisplayFps = displayFps;
+
+        NSScreen* screen = [info.info.cocoa.window screen];
+        CVReturn status;
+        if (screen == nullptr) {
+            // Window not visible on any display, so use a
+            // CVDisplayLink that can work with all active displays.
+            // When we become visible, we'll recreate ourselves
+            // and associate with the new screen.
+            SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                        "NSWindow is not visible on any display");
+            status = CVDisplayLinkCreateWithActiveCGDisplays(&m_DisplayLink);
+        }
+        else {
+            CGDirectDisplayID displayId;
+            displayId = getDisplayID(screen);
+            SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                        "NSWindow on display: %x",
+                        displayId);
+            status = CVDisplayLinkCreateWithCGDisplay(displayId, &m_DisplayLink);
+        }
+        if (status != kCVReturnSuccess) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "Failed to create CVDisplayLink: %d",
+                         status);
+            return false;
+        }
+
+        status = CVDisplayLinkSetOutputCallback(m_DisplayLink, displayLinkOutputCallback, this);
+        if (status != kCVReturnSuccess) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "CVDisplayLinkSetOutputCallback() failed: %d",
+                         status);
+            return false;
+        }
+
+        status = CVDisplayLinkStart(m_DisplayLink);
+        if (status != kCVReturnSuccess) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "CVDisplayLinkStart() failed: %d",
+                         status);
+            return false;
+        }
+
+        return true;
+    }
+
+private:
+    Pacer* m_Pacer;
+    CVDisplayLinkRef m_DisplayLink;
+    int m_DisplayFps;
+};
+
+IVsyncSource* DisplayLinkVsyncSourceFactory::createVsyncSource(Pacer* pacer) {
+    return new DisplayLinkVsyncSource(pacer);
+}

app/streaming/video/ffmpeg-renderers/pacer/dxvsyncsource.cpp

@@ -0,0 +1,168 @@
+#include "dxvsyncsource.h"
+
+// Useful references:
+// https://bugs.chromium.org/p/chromium/issues/detail?id=467617
+// https://chromium.googlesource.com/chromium/src.git/+/c564f2fe339b2b2abb0c8773c90c83215670ea71/gpu/ipc/service/gpu_vsync_provider_win.cc
+
+DxVsyncSource::DxVsyncSource(Pacer* pacer) :
+    m_Pacer(pacer),
+    m_Thread(nullptr),
+    m_Gdi32Handle(nullptr)
+{
+    SDL_AtomicSet(&m_Stopping, 0);
+}
+
+DxVsyncSource::~DxVsyncSource()
+{
+    if (m_Thread != nullptr) {
+        SDL_AtomicSet(&m_Stopping, 1);
+        SDL_WaitThread(m_Thread, nullptr);
+    }
+
+    if (m_Gdi32Handle != nullptr) {
+        FreeLibrary(m_Gdi32Handle);
+    }
+}
+
+bool DxVsyncSource::initialize(SDL_Window* window, int displayFps)
+{
+    m_DisplayFps = displayFps;
+
+    m_Gdi32Handle = LoadLibraryA("gdi32.dll");
+    if (m_Gdi32Handle == nullptr) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Failed to load gdi32.dll: %d",
+                     GetLastError());
+        return false;
+    }
+
+    m_D3DKMTOpenAdapterFromHdc = (PFND3DKMTOPENADAPTERFROMHDC)GetProcAddress(m_Gdi32Handle, "D3DKMTOpenAdapterFromHdc");
+    m_D3DKMTCloseAdapter = (PFND3DKMTCLOSEADAPTER)GetProcAddress(m_Gdi32Handle, "D3DKMTCloseAdapter");
+    m_D3DKMTWaitForVerticalBlankEvent = (PFND3DKMTWAITFORVERTICALBLANKEVENT)GetProcAddress(m_Gdi32Handle, "D3DKMTWaitForVerticalBlankEvent");
+
+    if (m_D3DKMTOpenAdapterFromHdc == nullptr ||
+            m_D3DKMTCloseAdapter == nullptr ||
+            m_D3DKMTWaitForVerticalBlankEvent == nullptr) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Missing required function in gdi32.dll");
+        return false;
+    }
+
+    SDL_SysWMinfo info;
+
+    SDL_VERSION(&info.version);
+
+    if (!SDL_GetWindowWMInfo(window, &info)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "SDL_GetWindowWMInfo() failed: %s",
+                     SDL_GetError());
+        return false;
+    }
+
+    m_Window = info.info.win.window;
+
+    m_Thread = SDL_CreateThread(vsyncThread, "DX Vsync Thread", this);
+    if (m_Thread == nullptr) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Unable to create DX V-sync thread: %s",
+                     SDL_GetError());
+        return false;
+    }
+
+    return true;
+}
+
+int DxVsyncSource::vsyncThread(void* context)
+{
+    DxVsyncSource* me = reinterpret_cast<DxVsyncSource*>(context);
+
+    SDL_SetThreadPriority(SDL_THREAD_PRIORITY_HIGH);
+
+    D3DKMT_OPENADAPTERFROMHDC openAdapterParams = {};
+    HMONITOR lastMonitor = nullptr;
+    DEVMODEA monitorMode;
+    monitorMode.dmSize = sizeof(monitorMode);
+
+    while (SDL_AtomicGet(&me->m_Stopping) == 0) {
+        D3DKMT_WAITFORVERTICALBLANKEVENT waitForVblankEventParams;
+        NTSTATUS status;
+
+        // If the monitor has changed from last time, open the new adapter
+        HMONITOR currentMonitor = MonitorFromWindow(me->m_Window, MONITOR_DEFAULTTONEAREST);
+        if (currentMonitor != lastMonitor) {
+            MONITORINFOEXA monitorInfo = {};
+            monitorInfo.cbSize = sizeof(monitorInfo);
+            if (!GetMonitorInfoA(currentMonitor, &monitorInfo)) {
+                SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                             "GetMonitorInfo() failed: %d",
+                             GetLastError());
+                SDL_Delay(10);
+                continue;
+            }
+
+            if (!EnumDisplaySettingsA(monitorInfo.szDevice, ENUM_CURRENT_SETTINGS, &monitorMode)) {
+                SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                             "EnumDisplaySettings() failed: %d",
+                             GetLastError());
+                SDL_Delay(10);
+                continue;
+            }
+
+            SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                        "Monitor changed: %s %d Hz",
+                        monitorInfo.szDevice,
+                        monitorMode.dmDisplayFrequency);
+
+            if (openAdapterParams.hAdapter != 0) {
+                D3DKMT_CLOSEADAPTER closeAdapterParams = {};
+                closeAdapterParams.hAdapter = openAdapterParams.hAdapter;
+                me->m_D3DKMTCloseAdapter(&closeAdapterParams);
+            }
+
+            openAdapterParams.hDc = CreateDCA(nullptr, monitorInfo.szDevice, nullptr, nullptr);
+            if (!openAdapterParams.hDc) {
+                SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                             "CreateDC() failed: %d",
+                             GetLastError());
+                SDL_Delay(10);
+                continue;
+            }
+
+            status = me->m_D3DKMTOpenAdapterFromHdc(&openAdapterParams);
+            DeleteDC(openAdapterParams.hDc);
+
+            if (status != STATUS_SUCCESS) {
+                SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                             "D3DKMTOpenAdapterFromHdc() failed: %x",
+                             status);
+                SDL_Delay(10);
+                continue;
+            }
+
+            lastMonitor = currentMonitor;
+        }
+
+        waitForVblankEventParams.hAdapter = openAdapterParams.hAdapter;
+        waitForVblankEventParams.hDevice = 0;
+        waitForVblankEventParams.VidPnSourceId = openAdapterParams.VidPnSourceId;
+
+        status = me->m_D3DKMTWaitForVerticalBlankEvent(&waitForVblankEventParams);
+        if (status != STATUS_SUCCESS) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "D3DKMTWaitForVerticalBlankEvent() failed: %x",
+                         status);
+            SDL_Delay(10);
+            continue;
+        }
+
+        me->m_Pacer->vsyncCallback(1000 / me->m_DisplayFps);
+    }
+
+    if (openAdapterParams.hAdapter != 0) {
+        D3DKMT_CLOSEADAPTER closeAdapterParams = {};
+        closeAdapterParams.hAdapter = openAdapterParams.hAdapter;
+        me->m_D3DKMTCloseAdapter(&closeAdapterParams);
+    }
+
+    return 0;
+}

app/streaming/video/ffmpeg-renderers/pacer/dxvsyncsource.h

@@ -0,0 +1,53 @@
+#pragma once
+
+#include "pacer.h"
+
+#include <SDL_syswm.h>
+
+// from <D3dkmthk.h>
+typedef LONG NTSTATUS;
+typedef UINT D3DKMT_HANDLE;
+typedef UINT D3DDDI_VIDEO_PRESENT_SOURCE_ID;
+#define STATUS_SUCCESS ((NTSTATUS)0x00000000L)
+#define STATUS_GRAPHICS_PRESENT_OCCLUDED ((NTSTATUS)0xC01E0006L)
+typedef struct _D3DKMT_OPENADAPTERFROMHDC {
+  HDC hDc;
+  D3DKMT_HANDLE hAdapter;
+  LUID AdapterLuid;
+  D3DDDI_VIDEO_PRESENT_SOURCE_ID VidPnSourceId;
+} D3DKMT_OPENADAPTERFROMHDC;
+typedef struct _D3DKMT_CLOSEADAPTER {
+  D3DKMT_HANDLE hAdapter;
+} D3DKMT_CLOSEADAPTER;
+typedef struct _D3DKMT_WAITFORVERTICALBLANKEVENT {
+  D3DKMT_HANDLE hAdapter;
+  D3DKMT_HANDLE hDevice;
+  D3DDDI_VIDEO_PRESENT_SOURCE_ID VidPnSourceId;
+} D3DKMT_WAITFORVERTICALBLANKEVENT;
+typedef NTSTATUS(APIENTRY* PFND3DKMTOPENADAPTERFROMHDC)(D3DKMT_OPENADAPTERFROMHDC*);
+typedef NTSTATUS(APIENTRY* PFND3DKMTCLOSEADAPTER)(D3DKMT_CLOSEADAPTER*);
+typedef NTSTATUS(APIENTRY* PFND3DKMTWAITFORVERTICALBLANKEVENT)(D3DKMT_WAITFORVERTICALBLANKEVENT*);
+
+class DxVsyncSource : public IVsyncSource
+{
+public:
+    DxVsyncSource(Pacer* pacer);
+
+    virtual ~DxVsyncSource();
+
+    virtual bool initialize(SDL_Window* window, int displayFps);
+
+private:
+    static int vsyncThread(void* context);
+
+    Pacer* m_Pacer;
+    SDL_Thread* m_Thread;
+    SDL_atomic_t m_Stopping;
+    HMODULE m_Gdi32Handle;
+    HWND m_Window;
+    int m_DisplayFps;
+
+    PFND3DKMTOPENADAPTERFROMHDC m_D3DKMTOpenAdapterFromHdc;
+    PFND3DKMTCLOSEADAPTER m_D3DKMTCloseAdapter;
+    PFND3DKMTWAITFORVERTICALBLANKEVENT m_D3DKMTWaitForVerticalBlankEvent;
+};

app/streaming/video/ffmpeg-renderers/pacer/nullthreadedvsyncsource.cpp

@@ -0,0 +1,43 @@
+#include "nullthreadedvsyncsource.h"
+
+NullThreadedVsyncSource::NullThreadedVsyncSource(Pacer* pacer) :
+    m_Pacer(pacer),
+    m_Thread(nullptr)
+{
+    SDL_AtomicSet(&m_Stopping, 0);
+}
+
+NullThreadedVsyncSource::~NullThreadedVsyncSource()
+{
+    if (m_Thread != nullptr) {
+        SDL_AtomicSet(&m_Stopping, 1);
+        SDL_WaitThread(m_Thread, nullptr);
+    }
+}
+
+bool NullThreadedVsyncSource::initialize(SDL_Window*, int displayFps)
+{
+    m_DisplayFps = displayFps;
+    m_Thread = SDL_CreateThread(vsyncThread, "Null Vsync Thread", this);
+    if (m_Thread == nullptr) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Unable to create DX V-sync thread: %s",
+                     SDL_GetError());
+        return false;
+    }
+
+    return true;
+}
+
+int NullThreadedVsyncSource::vsyncThread(void* context)
+{
+    NullThreadedVsyncSource* me = reinterpret_cast<NullThreadedVsyncSource*>(context);
+
+    SDL_SetThreadPriority(SDL_THREAD_PRIORITY_HIGH);
+
+    while (SDL_AtomicGet(&me->m_Stopping) == 0) {
+        me->m_Pacer->vsyncCallback(1000 / me->m_DisplayFps);
+    }
+
+    return 0;
+}

app/streaming/video/ffmpeg-renderers/pacer/nullthreadedvsyncsource.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "pacer.h"
+
+class NullThreadedVsyncSource : public IVsyncSource
+{
+public:
+    NullThreadedVsyncSource(Pacer* pacer);
+
+    virtual ~NullThreadedVsyncSource();
+
+    virtual bool initialize(SDL_Window* window, int displayFps);
+
+private:
+    static int vsyncThread(void* context);
+
+    Pacer* m_Pacer;
+    SDL_Thread* m_Thread;
+    SDL_atomic_t m_Stopping;
+    int m_DisplayFps;
+};

app/streaming/video/ffmpeg-renderers/pacer/pacer.cpp

@@ -0,0 +1,175 @@
+#include "pacer.h"
+#include "streaming/streamutils.h"
+
+#include "nullthreadedvsyncsource.h"
+
+#ifdef Q_OS_DARWIN
+#include "displaylinkvsyncsource.h"
+#endif
+
+#ifdef Q_OS_WIN32
+#include "dxvsyncsource.h"
+#endif
+
+#define FRAME_HISTORY_ENTRIES 8
+
+// We may be woken up slightly late so don't go all the way
+// up to the next V-sync since we may accidentally step into
+// the next V-sync period. It also takes some amount of time
+// to do the render itself, so we can't render right before
+// V-sync happens.
+#define TIMER_SLACK_MS 3
+
+Pacer::Pacer(IFFmpegRenderer* renderer) :
+    m_FrameQueueLock(0),
+    m_VsyncSource(nullptr),
+    m_VsyncRenderer(renderer),
+    m_MaxVideoFps(0),
+    m_DisplayFps(0)
+{
+
+}
+
+Pacer::~Pacer()
+{
+    // Stop V-sync callbacks
+    delete m_VsyncSource;
+    m_VsyncSource = nullptr;
+
+    while (!m_FrameQueue.isEmpty()) {
+        AVFrame* frame = m_FrameQueue.dequeue();
+        av_frame_free(&frame);
+    }
+}
+
+// Called in an arbitrary thread by the IVsyncSource on V-sync
+// or an event synchronized with V-sync
+void Pacer::vsyncCallback(int timeUntilNextVsyncMillis)
+{
+    // Make sure initialize() has been called
+    SDL_assert(m_MaxVideoFps != 0);
+
+    SDL_assert(timeUntilNextVsyncMillis >= TIMER_SLACK_MS);
+
+    Uint32 vsyncCallbackStartTime = SDL_GetTicks();
+
+    SDL_AtomicLock(&m_FrameQueueLock);
+
+    // If the queue length history entries are large, be strict
+    // about dropping excess frames.
+    int frameDropTarget = 1;
+
+    // If we may get more frames per second than we can display, use
+    // frame history to drop frames only if consistently above the
+    // one queued frame mark.
+    if (m_MaxVideoFps >= m_DisplayFps) {
+        for (int i = 0; i < m_FrameQueueHistory.count(); i++) {
+            if (m_FrameQueueHistory[i] <= 1) {
+                // Be lenient as long as the queue length
+                // resolves before the end of frame history
+                frameDropTarget = 3;
+                break;
+            }
+        }
+
+        if (m_FrameQueueHistory.count() == FRAME_HISTORY_ENTRIES) {
+            m_FrameQueueHistory.dequeue();
+        }
+
+        m_FrameQueueHistory.enqueue(m_FrameQueue.count());
+    }
+
+    // Catch up if we're several frames ahead
+    while (m_FrameQueue.count() > frameDropTarget) {
+        AVFrame* frame = m_FrameQueue.dequeue();
+        av_frame_free(&frame);
+    }
+
+
+    if (m_FrameQueue.isEmpty()) {
+        SDL_AtomicUnlock(&m_FrameQueueLock);
+
+        while (!SDL_TICKS_PASSED(SDL_GetTicks(),
+                                 vsyncCallbackStartTime + timeUntilNextVsyncMillis - TIMER_SLACK_MS)) {
+            SDL_Delay(1);
+
+            SDL_AtomicLock(&m_FrameQueueLock);
+            if (!m_FrameQueue.isEmpty()) {
+                // Don't release the lock
+                goto RenderNextFrame;
+            }
+            SDL_AtomicUnlock(&m_FrameQueueLock);
+        }
+
+        // Nothing to render at this time
+        return;
+    }
+
+RenderNextFrame:
+    // Grab the first frame
+    AVFrame* frame = m_FrameQueue.dequeue();
+    SDL_AtomicUnlock(&m_FrameQueueLock);
+
+    // Render it
+    m_VsyncRenderer->renderFrameAtVsync(frame);
+
+    // Free the frame
+    av_frame_free(&frame);
+}
+
+bool Pacer::initialize(SDL_Window* window, int maxVideoFps, bool enableVsync)
+{
+    m_MaxVideoFps = maxVideoFps;
+    m_EnableVsync = enableVsync;
+    m_DisplayFps = StreamUtils::getDisplayRefreshRate(window);
+
+    if (m_EnableVsync) {
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "Frame pacing in tear-free mode: target %d Hz with %d FPS stream",
+                    m_DisplayFps, m_MaxVideoFps);
+
+    #if defined(Q_OS_DARWIN)
+        m_VsyncSource = DisplayLinkVsyncSourceFactory::createVsyncSource(this);
+    #elif defined(Q_OS_WIN32)
+        m_VsyncSource = new DxVsyncSource(this);
+    #else
+        // Platforms without a VsyncSource will just render frames
+        // immediately like they used to.
+    #endif
+
+        if (m_VsyncSource != nullptr && !m_VsyncSource->initialize(window, m_DisplayFps)) {
+            return false;
+        }
+    }
+    else {
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "Minimal latency tearing mode: target %d Hz with %d FPS stream",
+                    m_DisplayFps, m_MaxVideoFps);
+    }
+
+    return true;
+}
+
+void Pacer::submitFrame(AVFrame* frame)
+{
+    // Make sure initialize() has been called
+    SDL_assert(m_MaxVideoFps != 0);
+
+    // Queue the frame until the V-sync callback if
+    // we have a V-sync source, otherwise deliver it
+    // immediately and hope for the best.
+    if (isUsingFrameQueue()) {
+        SDL_AtomicLock(&m_FrameQueueLock);
+        m_FrameQueue.enqueue(frame);
+        SDL_AtomicUnlock(&m_FrameQueueLock);
+    }
+    else {
+        m_VsyncRenderer->renderFrameAtVsync(frame);
+        av_frame_free(&frame);
+    }
+}
+
+bool Pacer::isUsingFrameQueue()
+{
+    return m_VsyncSource != nullptr;
+}

app/streaming/video/ffmpeg-renderers/pacer/pacer.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include "../renderer.h"
+
+#include <QQueue>
+
+class IVsyncSource {
+public:
+    virtual ~IVsyncSource() {}
+    virtual bool initialize(SDL_Window* window, int displayFps) = 0;
+};
+
+class Pacer
+{
+public:
+    Pacer(IFFmpegRenderer* renderer);
+
+    ~Pacer();
+
+    void submitFrame(AVFrame* frame);
+
+    bool initialize(SDL_Window* window, int maxVideoFps, bool enableVsync);
+
+    void vsyncCallback(int timeUntilNextVsyncMillis);
+
+    bool isUsingFrameQueue();
+
+private:
+    QQueue<AVFrame*> m_FrameQueue;
+    QQueue<int> m_FrameQueueHistory;
+    SDL_SpinLock m_FrameQueueLock;
+
+    IVsyncSource* m_VsyncSource;
+    IFFmpegRenderer* m_VsyncRenderer;
+    int m_MaxVideoFps;
+    int m_DisplayFps;
+    bool m_EnableVsync;
+};

app/streaming/video/ffmpeg-renderers/renderer.h

@@ -8,13 +8,24 @@ extern "C" {
 
 class IFFmpegRenderer {
 public:
+    enum VSyncConstraint {
+        VSYNC_FORCE_OFF,
+        VSYNC_FORCE_ON,
+        VSYNC_ANY
+    };
+
     virtual ~IFFmpegRenderer() {}
     virtual bool initialize(SDL_Window* window,
                             int videoFormat,
                             int width,
-                            int height) = 0;
+                            int height,
+                            int maxFps,
+                            bool enableVsync) = 0;
     virtual bool prepareDecoderContext(AVCodecContext* context) = 0;
-    virtual void renderFrame(AVFrame* frame) = 0;
+    virtual void renderFrameAtVsync(AVFrame* frame) = 0;
+    virtual bool needsTestFrame() = 0;
+    virtual int getDecoderCapabilities() = 0;
+    virtual VSyncConstraint getVsyncConstraint() = 0;
 };
 
 class SdlRenderer : public IFFmpegRenderer {
@@ -24,9 +35,14 @@ public:
     virtual bool initialize(SDL_Window* window,
                             int videoFormat,
                             int width,
-                            int height);
+                            int height,
+                            int maxFps,
+                            bool enableVsync);
     virtual bool prepareDecoderContext(AVCodecContext* context);
-    virtual void renderFrame(AVFrame* frame);
+    virtual void renderFrameAtVsync(AVFrame* frame);
+    virtual bool needsTestFrame();
+    virtual int getDecoderCapabilities();
+    virtual VSyncConstraint getVsyncConstraint();
 
 private:
     SDL_Renderer* m_Renderer;

app/streaming/video/ffmpeg-renderers/sdlvid.cpp

@@ -23,23 +23,50 @@ SdlRenderer::~SdlRenderer()
 bool SdlRenderer::prepareDecoderContext(AVCodecContext*)
 {
     /* Nothing to do */
+
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Using SDL software renderer");
+
     return true;
 }
 
-bool SdlRenderer::initialize(SDL_Window* window,
-                             int videoFormat,
-                             int width,
-                             int height)
+bool SdlRenderer::needsTestFrame()
 {
-    // NOTE: HEVC currently uses only 1 slice regardless of what
-    // we provide in CAPABILITY_SLICES_PER_FRAME(), so we should
-    // never use it for software decoding (unless common-c starts
-    // respecting it for HEVC).
-    if (videoFormat != VIDEO_FORMAT_H264) {
-        return false;
+    // This renderer should always work
+    return false;
+}
+
+int SdlRenderer::getDecoderCapabilities()
+{
+    // The FFmpeg CPU decoder can handle reference frame invalidation,
+    // but only for H.264.
+    return CAPABILITY_REFERENCE_FRAME_INVALIDATION_AVC;
+}
+
+IFFmpegRenderer::VSyncConstraint SdlRenderer::getVsyncConstraint()
+{
+    return VSYNC_ANY;
+}
+
+bool SdlRenderer::initialize(SDL_Window* window,
+                             int,
+                             int width,
+                             int height,
+                             int,
+                             bool enableVsync)
+{
+    Uint32 rendererFlags = SDL_RENDERER_ACCELERATED;
+
+    if ((SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN_DESKTOP) == SDL_WINDOW_FULLSCREEN) {
+        // In full-screen exclusive mode, we enable V-sync if requested. For other modes, Windows and Mac
+        // have compositors that make rendering tear-free. Linux compositor varies by distro and user
+        // configuration but doesn't seem feasible to detect here.
+        if (enableVsync) {
+            rendererFlags |= SDL_RENDERER_PRESENTVSYNC;
+        }
     }
 
-    m_Renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+    m_Renderer = SDL_CreateRenderer(window, -1, rendererFlags);
     if (!m_Renderer) {
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
                      "SDL_CreateRenderer() failed: %s",
@@ -71,7 +98,7 @@ bool SdlRenderer::initialize(SDL_Window* window,
     return true;
 }
 
-void SdlRenderer::renderFrame(AVFrame* frame)
+void SdlRenderer::renderFrameAtVsync(AVFrame* frame)
 {
     SDL_UpdateYUVTexture(m_Texture, nullptr,
                          frame->data[0],
@@ -81,9 +108,6 @@ void SdlRenderer::renderFrame(AVFrame* frame)
                          frame->data[2],
                          frame->linesize[2]);
 
-    // Done with the frame now
-    av_frame_free(&frame);
-
     SDL_RenderClear(m_Renderer);
     SDL_RenderCopy(m_Renderer, m_Texture, nullptr, nullptr);
     SDL_RenderPresent(m_Renderer);

app/streaming/video/ffmpeg-renderers/vaapi.cpp

@@ -1,13 +1,10 @@
 #include "vaapi.h"
-
-#include <dlfcn.h>
+#include <streaming/streamutils.h>
 
 #include <SDL_syswm.h>
 
 VAAPIRenderer::VAAPIRenderer()
-    : m_HwContext(nullptr),
-      m_X11VaLibHandle(nullptr),
-      m_vaPutSurface(nullptr)
+    : m_HwContext(nullptr)
 {
 
 }
@@ -15,16 +12,22 @@ VAAPIRenderer::VAAPIRenderer()
 VAAPIRenderer::~VAAPIRenderer()
 {
     if (m_HwContext != nullptr) {
-        av_buffer_unref(&m_HwContext);
-    }
+        AVHWDeviceContext* deviceContext = (AVHWDeviceContext*)m_HwContext->data;
+        AVVAAPIDeviceContext* vaDeviceContext = (AVVAAPIDeviceContext*)deviceContext->hwctx;
 
-    if (m_X11VaLibHandle != nullptr) {
-        dlclose(m_X11VaLibHandle);
+        // Hold onto this VADisplay since we'll need it to uninitialize VAAPI
+        VADisplay display = vaDeviceContext->display;
+
+        av_buffer_unref(&m_HwContext);
+
+        if (display) {
+            vaTerminate(display);
+        }
     }
 }
 
 bool
-VAAPIRenderer::initialize(SDL_Window* window, int, int width, int height)
+VAAPIRenderer::initialize(SDL_Window* window, int, int width, int height, int, bool)
 {
     int err;
     SDL_SysWMinfo info;
@@ -37,31 +40,53 @@ VAAPIRenderer::initialize(SDL_Window* window, int, int width, int height)
     SDL_VERSION(&info.version);
 
     if (!SDL_GetWindowWMInfo(window, &info)) {
-        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
-                    "SDL_GetWindowWMInfo() failed: %s",
-                    SDL_GetError());
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "SDL_GetWindowWMInfo() failed: %s",
+                     SDL_GetError());
         return false;
     }
 
-    SDL_assert(info.subsystem == SDL_SYSWM_X11);
+    m_HwContext = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_VAAPI);
+    if (!m_HwContext) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                    "Failed to allocate VAAPI context");
+        return false;
+    }
 
+    AVHWDeviceContext* deviceContext = (AVHWDeviceContext*)m_HwContext->data;
+    AVVAAPIDeviceContext* vaDeviceContext = (AVVAAPIDeviceContext*)deviceContext->hwctx;
+
+    m_WindowSystem = info.subsystem;
     if (info.subsystem == SDL_SYSWM_X11) {
+#ifdef HAVE_LIBVA_X11
         m_XWindow = info.info.x11.window;
-
-        m_X11VaLibHandle = dlopen("libva-x11.so", RTLD_LAZY);
-        if (!m_X11VaLibHandle) {
-            SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
-                        "dlopen(libva.so) failed: %s",
-                        dlerror());
+        vaDeviceContext->display = vaGetDisplay(info.info.x11.display);
+        if (!vaDeviceContext->display) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "Unable to open X11 display for VAAPI");
             return false;
         }
-
-        m_vaPutSurface = (vaPutSurface_t)dlsym(m_X11VaLibHandle, "vaPutSurface");
+#else
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Moonlight not compiled with VAAPI X11 support!");
+        return false;
+#endif
     }
     else if (info.subsystem == SDL_SYSWM_WAYLAND) {
+#ifdef HAVE_LIBVA_WAYLAND
+        m_WaylandSurface = info.info.wl.surface;
+        m_WaylandDisplay = info.info.wl.display;
+        vaDeviceContext->display = vaGetDisplayWl(info.info.wl.display);
+        if (!vaDeviceContext->display) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "Unable to open Wayland display for VAAPI");
+            return false;
+        }
+#else
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                     "VAAPI backend does not currently support Wayland");
+                     "Moonlight not compiled with VAAPI Wayland support!");
         return false;
+#endif
     }
     else {
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
@@ -70,17 +95,37 @@ VAAPIRenderer::initialize(SDL_Window* window, int, int width, int height)
         return false;
     }
 
+    int major, minor;
+    VAStatus status;
+    status = vaInitialize(vaDeviceContext->display, &major, &minor);
+    if (status != VA_STATUS_SUCCESS) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Failed to initialize VAAPI: %d",
+                     status);
+        return false;
+    }
 
-    err = av_hwdevice_ctx_create(&m_HwContext,
-                                 AV_HWDEVICE_TYPE_VAAPI,
-                                 nullptr, nullptr, 0);
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Initialized VAAPI %d.%d",
+                major, minor);
+
+    // This will populate the driver_quirks
+    err = av_hwdevice_ctx_init(m_HwContext);
     if (err < 0) {
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                     "Failed to create VAAPI context: %d",
+                     "Failed to initialize VAAPI context: %d",
                      err);
         return false;
     }
 
+    // This quirk is set for the VDPAU wrapper which doesn't work with our VAAPI renderer
+    if (vaDeviceContext->driver_quirks & AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES) {
+        // Fail and let our VDPAU renderer pick this up
+        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                    "Avoiding VDPAU wrapper for VAAPI decoding");
+        return false;
+    }
+
     return true;
 }
 
@@ -88,45 +133,87 @@ bool
 VAAPIRenderer::prepareDecoderContext(AVCodecContext* context)
 {
     context->hw_device_ctx = av_buffer_ref(m_HwContext);
+
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Using VAAPI accelerated renderer on %s",
+                m_WindowSystem == SDL_SYSWM_X11 ? "X11" : "Wayland");
+
     return true;
 }
 
+bool
+VAAPIRenderer::needsTestFrame()
+{
+    // We need a test frame to see if this VAAPI driver
+    // supports the profile used for streaming
+    return true;
+}
+
+int
+VAAPIRenderer::getDecoderCapabilities()
+{
+    return 0;
+}
+
+IFFmpegRenderer::VSyncConstraint VAAPIRenderer::getVsyncConstraint()
+{
+    return VSYNC_ANY;
+}
+
 void
-VAAPIRenderer::renderFrame(AVFrame* frame)
+VAAPIRenderer::renderFrameAtVsync(AVFrame* frame)
 {
     VASurfaceID surface = (VASurfaceID)(uintptr_t)frame->data[3];
     AVHWDeviceContext* deviceContext = (AVHWDeviceContext*)m_HwContext->data;
     AVVAAPIDeviceContext* vaDeviceContext = (AVVAAPIDeviceContext*)deviceContext->hwctx;
 
-    // Center in frame and preserve aspect ratio
-    int x, y, width, height;
-    double srcAspectRatio = (double)m_VideoWidth / (double)m_VideoHeight;
-    double dstAspectRatio = (double)m_DisplayWidth / (double)m_DisplayHeight;
-    if (dstAspectRatio < srcAspectRatio) {
-        // Greater height per width
-        int drawHeight = (int)(m_DisplayWidth / srcAspectRatio);
-        y = (m_DisplayHeight - drawHeight) / 2;
-        height = drawHeight;
-        x = 0;
-        width = m_DisplayWidth;
+    SDL_Rect src, dst;
+    src.x = src.y = 0;
+    src.w = m_VideoWidth;
+    src.h = m_VideoHeight;
+    dst.x = dst.y = 0;
+    dst.w = m_DisplayWidth;
+    dst.h = m_DisplayHeight;
+
+    StreamUtils::scaleSourceToDestinationSurface(&src, &dst);
+
+    if (m_WindowSystem == SDL_SYSWM_X11) {
+#ifdef HAVE_LIBVA_X11
+        vaPutSurface(vaDeviceContext->display,
+                     surface,
+                     m_XWindow,
+                     0, 0,
+                     m_VideoWidth, m_VideoHeight,
+                     dst.x, dst.y,
+                     dst.w, dst.h,
+                     NULL, 0, 0);
+#endif
+    }
+    else if (m_WindowSystem == SDL_SYSWM_WAYLAND) {
+#ifdef HAVE_LIBVA_WAYLAND
+        struct wl_buffer* buffer;
+        VAStatus status;
+
+        status = vaGetSurfaceBufferWl(vaDeviceContext->display,
+                                      surface,
+                                      VA_FRAME_PICTURE,
+                                      &buffer);
+        if (status == VA_STATUS_SUCCESS) {
+            wl_surface_attach(m_WaylandSurface, buffer, 0, 0);
+            wl_surface_damage(m_WaylandSurface, dst.x, dst.y, dst.w, dst.h);
+
+            wl_display_flush(m_WaylandDisplay);
+            wl_surface_commit(m_WaylandSurface);
+        }
+        else {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "vaGetSurfaceBufferWl failed(): %d",
+                         status);
+        }
+#endif
     }
     else {
-        // Greater width per height
-        int drawWidth = (int)(m_DisplayHeight * srcAspectRatio);
-        y = 0;
-        height = m_DisplayHeight;
-        x = (m_DisplayWidth - drawWidth) / 2;
-        width = drawWidth;
+        // We don't accept anything else in initialize().
+        SDL_assert(false);
     }
-
-    m_vaPutSurface(vaDeviceContext->display,
-                   surface,
-                   m_XWindow,
-                   0, 0,
-                   m_VideoWidth, m_VideoHeight,
-                   x, y,
-                   width, height,
-                   NULL, 0, 0);
-
-    av_frame_free(&frame);
 }

app/streaming/video/ffmpeg-renderers/vaapi.h

@@ -2,49 +2,61 @@
 
 #include "renderer.h"
 
+// Avoid X11 if SDL was built without it
+#ifndef SDL_VIDEO_DRIVER_X11
+#warning Unable to use libva-x11 without SDL support
+#undef HAVE_LIBVA_X11
+#endif
+
+// Avoid Wayland if SDL was built without it
+#ifndef SDL_VIDEO_DRIVER_WAYLAND
+#warning Unable to use libva-wayland without SDL support
+#undef HAVE_LIBVA_WAYLAND
+#endif
+
 extern "C" {
 #include <va/va.h>
+#ifdef HAVE_LIBVA_X11
 #include <va/va_x11.h>
+#endif
+#ifdef HAVE_LIBVA_WAYLAND
+#include <va/va_wayland.h>
+#endif
 #include <libavutil/hwcontext_vaapi.h>
 }
 
 class VAAPIRenderer : public IFFmpegRenderer
 {
-    typedef VAStatus (*vaPutSurface_t)(
-        VADisplay dpy,
-        VASurfaceID surface,
-        Drawable draw, /* X Drawable */
-        short srcx,
-        short srcy,
-        unsigned short srcw,
-        unsigned short srch,
-        short destx,
-        short desty,
-        unsigned short destw,
-        unsigned short desth,
-        VARectangle *cliprects,
-        unsigned int number_cliprects,
-        unsigned int flags
-    );
-
 public:
     VAAPIRenderer();
     virtual ~VAAPIRenderer();
     virtual bool initialize(SDL_Window* window,
                             int videoFormat,
                             int width,
-                            int height);
+                            int height,
+                            int maxFps,
+                            bool enableVsync);
     virtual bool prepareDecoderContext(AVCodecContext* context);
-    virtual void renderFrame(AVFrame* frame);
+    virtual void renderFrameAtVsync(AVFrame* frame);
+    virtual bool needsTestFrame();
+    virtual int getDecoderCapabilities();
+    virtual VSyncConstraint getVsyncConstraint();
 
 private:
-    Window m_XWindow;
+    int m_WindowSystem;
     AVBufferRef* m_HwContext;
-    void* m_X11VaLibHandle;
-    vaPutSurface_t m_vaPutSurface;
+
+#ifdef HAVE_LIBVA_X11
+    Window m_XWindow;
+#endif
+
+#ifdef HAVE_LIBVA_WAYLAND
+    struct wl_surface* m_WaylandSurface;
+    struct wl_display* m_WaylandDisplay;
+#endif
+
     int m_VideoWidth;
     int m_VideoHeight;
     int m_DisplayWidth;
     int m_DisplayHeight;
 };
-

app/streaming/video/ffmpeg-renderers/vdpau.cpp

@@ -0,0 +1,349 @@
+#include "vdpau.h"
+#include <streaming/streamutils.h>
+
+#include <SDL_syswm.h>
+
+#define BAIL_ON_FAIL(status, something) if ((status) != VDP_STATUS_OK) { \
+                                            SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION, \
+                                                        #something " failed: %d", (status)); \
+                                            return false; \
+                                        }
+
+#define GET_PROC_ADDRESS(id, func) status = vdpauCtx->get_proc_address(m_Device, id, (void**)func); \
+                                   BAIL_ON_FAIL(status, id)
+
+const VdpRGBAFormat VDPAURenderer::k_OutputFormats[] = {
+    VDP_RGBA_FORMAT_B8G8R8A8,
+    VDP_RGBA_FORMAT_R8G8B8A8
+};
+
+VDPAURenderer::VDPAURenderer()
+    : m_HwContext(nullptr),
+      m_PresentationQueueTarget(0),
+      m_PresentationQueue(0),
+      m_VideoMixer(0),
+      m_NextSurfaceIndex(0)
+{
+    SDL_zero(m_OutputSurface);
+}
+
+VDPAURenderer::~VDPAURenderer()
+{
+    if (m_PresentationQueue != 0) {
+        m_VdpPresentationQueueDestroy(m_PresentationQueue);
+    }
+
+    if (m_VideoMixer != 0) {
+        m_VdpVideoMixerDestroy(m_VideoMixer);
+    }
+
+    if (m_PresentationQueueTarget != 0) {
+        m_VdpPresentationQueueTargetDestroy(m_PresentationQueueTarget);
+    }
+
+    for (int i = 0; i < OUTPUT_SURFACE_COUNT; i++) {
+        if (m_OutputSurface[i] != 0) {
+            m_VdpOutputSurfaceDestroy(m_OutputSurface[i]);
+        }
+    }
+
+    // This must be done last as it frees VDPAU context required to call
+    // the functions above.
+    if (m_HwContext != nullptr) {
+        av_buffer_unref(&m_HwContext);
+    }
+}
+
+bool VDPAURenderer::initialize(SDL_Window* window, int, int width, int height, int, bool)
+{
+    int err;
+    VdpStatus status;
+    SDL_SysWMinfo info;
+
+    m_VideoWidth = width;
+    m_VideoHeight = height;
+
+    err = av_hwdevice_ctx_create(&m_HwContext,
+                                 AV_HWDEVICE_TYPE_VDPAU,
+                                 nullptr, nullptr, 0);
+    if (err < 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Failed to create VDPAU context: %d",
+                     err);
+        return false;
+    }
+
+    AVHWDeviceContext* devCtx = (AVHWDeviceContext*)m_HwContext->data;
+    AVVDPAUDeviceContext* vdpauCtx = (AVVDPAUDeviceContext*)devCtx->hwctx;
+    m_Device = vdpauCtx->device;
+
+    GET_PROC_ADDRESS(VDP_FUNC_ID_GET_ERROR_STRING, &m_VdpGetErrorString);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_PRESENTATION_QUEUE_TARGET_DESTROY, &m_VdpPresentationQueueTargetDestroy);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_VIDEO_MIXER_CREATE, &m_VdpVideoMixerCreate);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_VIDEO_MIXER_DESTROY, &m_VdpVideoMixerDestroy);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_VIDEO_MIXER_RENDER, &m_VdpVideoMixerRender);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_PRESENTATION_QUEUE_CREATE, &m_VdpPresentationQueueCreate);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_PRESENTATION_QUEUE_DESTROY, &m_VdpPresentationQueueDestroy);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_PRESENTATION_QUEUE_DISPLAY, &m_VdpPresentationQueueDisplay);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_PRESENTATION_QUEUE_SET_BACKGROUND_COLOR, &m_VdpPresentationQueueSetBackgroundColor);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_PRESENTATION_QUEUE_BLOCK_UNTIL_SURFACE_IDLE, &m_VdpPresentationQueueBlockUntilSurfaceIdle);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_OUTPUT_SURFACE_CREATE, &m_VdpOutputSurfaceCreate);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_OUTPUT_SURFACE_DESTROY, &m_VdpOutputSurfaceDestroy);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_OUTPUT_SURFACE_QUERY_CAPABILITIES, &m_VdpOutputSurfaceQueryCapabilities);
+    GET_PROC_ADDRESS(VDP_FUNC_ID_VIDEO_SURFACE_GET_PARAMETERS, &m_VdpVideoSurfaceGetParameters);
+
+    SDL_GetWindowSize(window, (int*)&m_DisplayWidth, (int*)&m_DisplayHeight);
+
+    SDL_VERSION(&info.version);
+
+    if (!SDL_GetWindowWMInfo(window, &info)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "SDL_GetWindowWMInfo() failed: %s",
+                     SDL_GetError());
+        return false;
+    }
+
+    SDL_assert(info.subsystem == SDL_SYSWM_X11);
+
+    if (info.subsystem == SDL_SYSWM_X11) {
+        GET_PROC_ADDRESS(VDP_FUNC_ID_PRESENTATION_QUEUE_TARGET_CREATE_X11,
+                         &m_VdpPresentationQueueTargetCreateX11);
+        status = m_VdpPresentationQueueTargetCreateX11(m_Device,
+                                                       info.info.x11.window,
+                                                       &m_PresentationQueueTarget);
+        if (status != VDP_STATUS_OK) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "VdpPresentationQueueTargetCreateX11() failed: %s",
+                         m_VdpGetErrorString(status));
+            return false;
+        }
+    }
+    else if (info.subsystem == SDL_SYSWM_WAYLAND) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "VDPAU backend does not currently support Wayland");
+        return false;
+    }
+    else {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Unsupported VDPAU rendering subsystem: %d",
+                     info.subsystem);
+        return false;
+    }
+
+    // Try our available output formats to find something the GPU supports
+    bool foundFormat = false;
+    for (int i = 0; i < OUTPUT_SURFACE_FORMAT_COUNT; i++) {
+        VdpBool supported;
+        uint32_t maxWidth, maxHeight;
+        status = m_VdpOutputSurfaceQueryCapabilities(m_Device, k_OutputFormats[i],
+                                                     &supported, &maxWidth, &maxHeight);
+        if (status != VDP_STATUS_OK) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "VdpOutputSurfaceQueryCapabilities() failed: %s",
+                         m_VdpGetErrorString(status));
+            return false;
+        }
+
+        if (supported) {
+            if (m_DisplayWidth <= maxWidth && m_DisplayHeight <= maxHeight) {
+                m_OutputSurfaceFormat = k_OutputFormats[i];
+                foundFormat = true;
+                break;
+            }
+            else  {
+                SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                            "Display size not within capabilities %dx%d vs %dx%d",
+                            m_DisplayWidth, m_DisplayWidth,
+                            maxWidth, maxHeight);
+            }
+        }
+    }
+
+    if (!foundFormat) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "No compatible output surface format found!");
+        return false;
+    }
+
+    // Create the output surfaces
+    for (int i = 0; i < OUTPUT_SURFACE_COUNT; i++) {
+        // It seems there's some lazy freeing going on or something in VDPAU
+        // because we can get VDP_STATUS_RESOURCES, then wait a bit and it'll
+        // complete without a problem.
+        int tries = 1;
+        do {
+            status = m_VdpOutputSurfaceCreate(m_Device, m_OutputSurfaceFormat,
+                                              m_DisplayWidth, m_DisplayHeight,
+                                              &m_OutputSurface[i]);
+            if (status != VDP_STATUS_OK) {
+                SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                            "VdpOutputSurfaceCreate() try #%d: %s",
+                            tries,
+                            m_VdpGetErrorString(status));
+                SDL_Delay(250);
+            }
+        } while (status == VDP_STATUS_RESOURCES && ++tries <= 10);
+
+        if (status != VDP_STATUS_OK) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "VdpOutputSurfaceCreate() failed: %s",
+                         m_VdpGetErrorString(status));
+            return false;
+        }
+    }
+
+    status = m_VdpPresentationQueueCreate(m_Device, m_PresentationQueueTarget,
+                                          &m_PresentationQueue);
+    if (status != VDP_STATUS_OK) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "VdpPresentationQueueCreate() failed: %s",
+                     m_VdpGetErrorString(status));
+        return false;
+    }
+
+    // Set the background to opaque black
+    VdpColor color = {0.0, 0.0, 0.0, 1.0};
+    m_VdpPresentationQueueSetBackgroundColor(m_PresentationQueue, &color);
+
+    return true;
+}
+
+bool VDPAURenderer::prepareDecoderContext(AVCodecContext* context)
+{
+    context->hw_device_ctx = av_buffer_ref(m_HwContext);
+
+    // Allow HEVC usage on VDPAU. This was disabled by FFmpeg due to
+    // GL interop issues, but we use VDPAU for rendering so it's no issue.
+    // https://github.com/FFmpeg/FFmpeg/commit/64ecb78b7179cab2dbdf835463104679dbb7c895
+    context->hwaccel_flags |= AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH;
+
+    // This flag is recommended due to hardware underreporting supported levels
+    context->hwaccel_flags |= AV_HWACCEL_FLAG_IGNORE_LEVEL;
+
+    SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                "Using VDPAU accelerated renderer");
+
+    return true;
+}
+
+bool VDPAURenderer::needsTestFrame()
+{
+    // We need a test frame to see if this VDPAU driver
+    // supports the profile used for streaming
+    return true;
+}
+
+int VDPAURenderer::getDecoderCapabilities()
+{
+    return 0;
+}
+
+IFFmpegRenderer::VSyncConstraint VDPAURenderer::getVsyncConstraint()
+{
+    return VSYNC_ANY;
+}
+
+void VDPAURenderer::renderFrameAtVsync(AVFrame* frame)
+{
+    VdpStatus status;
+    VdpVideoSurface videoSurface = (VdpVideoSurface)(uintptr_t)frame->data[3];
+
+    // This is safe without locking because this is always called on the main thread
+    VdpOutputSurface chosenSurface = m_OutputSurface[m_NextSurfaceIndex];
+    m_NextSurfaceIndex = (m_NextSurfaceIndex + 1) % OUTPUT_SURFACE_COUNT;
+
+    // We need to create the mixer on the fly, because we don't know the dimensions
+    // of our video surfaces in advance of decoding
+    if (m_VideoMixer == 0) {
+        VdpChromaType videoSurfaceChroma;
+        uint32_t videoSurfaceWidth, videoSurfaceHeight;
+        status = m_VdpVideoSurfaceGetParameters(videoSurface, &videoSurfaceChroma,
+                                                &videoSurfaceWidth, &videoSurfaceHeight);
+        if (status != VDP_STATUS_OK) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "VdpVideoSurfaceGetParameters() failed: %s",
+                         m_VdpGetErrorString(status));
+            return;
+        }
+
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "VDPAU surface size: %dx%d",
+                    videoSurfaceWidth, videoSurfaceHeight);
+
+    #define PARAM_COUNT 3
+        const VdpVideoMixerParameter params[PARAM_COUNT] = {
+            VDP_VIDEO_MIXER_PARAMETER_VIDEO_SURFACE_WIDTH,
+            VDP_VIDEO_MIXER_PARAMETER_VIDEO_SURFACE_HEIGHT,
+            VDP_VIDEO_MIXER_PARAMETER_CHROMA_TYPE,
+        };
+        const void* const paramValues[PARAM_COUNT] = {
+            &videoSurfaceWidth,
+            &videoSurfaceHeight,
+            &videoSurfaceChroma,
+        };
+
+        status = m_VdpVideoMixerCreate(m_Device, 0, nullptr,
+                                       PARAM_COUNT, params, paramValues,
+                                       &m_VideoMixer);
+        if (status != VDP_STATUS_OK) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "VdpVideoMixerCreate() failed: %s",
+                         m_VdpGetErrorString(status));
+            return;
+        }
+    }
+
+    // Wait for this frame to be off the screen
+    VdpTime pts;
+    m_VdpPresentationQueueBlockUntilSurfaceIdle(m_PresentationQueue, chosenSurface, &pts);
+
+    VdpRect sourceRect, outputRect;
+
+    SDL_Rect src, dst;
+    src.x = src.y = 0;
+    src.w = m_VideoWidth;
+    src.h = m_VideoHeight;
+    dst.x = dst.y = 0;
+    dst.w = m_DisplayWidth;
+    dst.h = m_DisplayHeight;
+
+    StreamUtils::scaleSourceToDestinationSurface(&src, &dst);
+
+    outputRect.x0 = dst.x;
+    outputRect.x1 = dst.x + dst.w;
+    outputRect.y0 = dst.y;
+    outputRect.y1 = dst.y + dst.h;
+
+    sourceRect.x0 = sourceRect.y0 = 0;
+    sourceRect.x1 = m_VideoWidth;
+    sourceRect.y1 = m_VideoHeight;
+
+    // Render the next frame into the output surface
+    status = m_VdpVideoMixerRender(m_VideoMixer,
+                                   VDP_INVALID_HANDLE, nullptr,
+                                   VDP_VIDEO_MIXER_PICTURE_STRUCTURE_FRAME,
+                                   0, nullptr,
+                                   videoSurface,
+                                   0, nullptr,
+                                   &sourceRect,
+                                   chosenSurface,
+                                   &outputRect,
+                                   nullptr,
+                                   0,
+                                   nullptr);
+    if (status != VDP_STATUS_OK) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "VdpVideoMixerRender() failed: %s",
+                     m_VdpGetErrorString(status));
+        return;
+    }
+
+    // Queue the frame for display immediately
+    status = m_VdpPresentationQueueDisplay(m_PresentationQueue, chosenSurface, 0, 0, 0);
+    if (status != VDP_STATUS_OK) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "VdpPresentationQueueDisplay() failed: %s",
+                     m_VdpGetErrorString(status));
+        return;
+    }
+}

app/streaming/video/ffmpeg-renderers/vdpau.h

@@ -0,0 +1,64 @@
+#pragma once
+
+#include "renderer.h"
+
+extern "C" {
+#include <vdpau/vdpau.h>
+#include <vdpau/vdpau_x11.h>
+#include <libavutil/hwcontext_vdpau.h>
+}
+
+class VDPAURenderer : public IFFmpegRenderer
+{
+public:
+    VDPAURenderer();
+    virtual ~VDPAURenderer();
+    virtual bool initialize(SDL_Window* window,
+                            int videoFormat,
+                            int width,
+                            int height,
+                            int maxFps,
+                            bool enableVsync);
+    virtual bool prepareDecoderContext(AVCodecContext* context);
+    virtual void renderFrameAtVsync(AVFrame* frame);
+    virtual bool needsTestFrame();
+    virtual int getDecoderCapabilities();
+    virtual VSyncConstraint getVsyncConstraint();
+
+private:
+    uint32_t m_VideoWidth, m_VideoHeight;
+    uint32_t m_DisplayWidth, m_DisplayHeight;
+    AVBufferRef* m_HwContext;
+    VdpPresentationQueueTarget m_PresentationQueueTarget;
+    VdpPresentationQueue m_PresentationQueue;
+    VdpVideoMixer m_VideoMixer;
+    VdpRGBAFormat m_OutputSurfaceFormat;
+    VdpDevice m_Device;
+
+#define OUTPUT_SURFACE_COUNT 3
+    VdpOutputSurface m_OutputSurface[OUTPUT_SURFACE_COUNT];
+    int m_NextSurfaceIndex;
+
+#define OUTPUT_SURFACE_FORMAT_COUNT 2
+    static const VdpRGBAFormat k_OutputFormats[OUTPUT_SURFACE_FORMAT_COUNT];
+
+    VdpGetErrorString* m_VdpGetErrorString;
+    VdpPresentationQueueTargetDestroy* m_VdpPresentationQueueTargetDestroy;
+    VdpVideoMixerCreate* m_VdpVideoMixerCreate;
+    VdpVideoMixerDestroy* m_VdpVideoMixerDestroy;
+    VdpVideoMixerRender* m_VdpVideoMixerRender;
+    VdpPresentationQueueCreate* m_VdpPresentationQueueCreate;
+    VdpPresentationQueueDestroy* m_VdpPresentationQueueDestroy;
+    VdpPresentationQueueDisplay* m_VdpPresentationQueueDisplay;
+    VdpPresentationQueueSetBackgroundColor* m_VdpPresentationQueueSetBackgroundColor;
+    VdpPresentationQueueBlockUntilSurfaceIdle* m_VdpPresentationQueueBlockUntilSurfaceIdle;
+    VdpOutputSurfaceCreate* m_VdpOutputSurfaceCreate;
+    VdpOutputSurfaceDestroy* m_VdpOutputSurfaceDestroy;
+    VdpOutputSurfaceQueryCapabilities* m_VdpOutputSurfaceQueryCapabilities;
+    VdpVideoSurfaceGetParameters* m_VdpVideoSurfaceGetParameters;
+
+    // X11 stuff
+    VdpPresentationQueueTargetCreateX11* m_VdpPresentationQueueTargetCreateX11;
+};
+
+

app/streaming/video/ffmpeg-renderers/vt.mm

@@ -2,19 +2,16 @@
 // libavutil both defining AVMediaType
 #define AVMediaType AVMediaType_FFmpeg
 #include "vt.h"
+#include "pacer/pacer.h"
 #undef AVMediaType
 
 #include <SDL_syswm.h>
 #include <Limelight.h>
 
-#include <QQueue>
-
+#include <mach/mach_time.h>
 #import <Cocoa/Cocoa.h>
 #import <VideoToolbox/VideoToolbox.h>
 #import <AVFoundation/AVFoundation.h>
-#import <CoreVideo/CoreVideo.h>
-
-#define FRAME_HISTORY_ENTRIES 8
 
 class VTRenderer : public IFFmpegRenderer
 {
@@ -23,9 +20,7 @@ public:
         : m_HwContext(nullptr),
           m_DisplayLayer(nullptr),
           m_FormatDesc(nullptr),
-          m_View(nullptr),
-          m_DisplayLink(nullptr),
-          m_FrameQueueLock(0)
+          m_View(nullptr)
     {
     }
 
@@ -39,63 +34,28 @@ public:
             CFRelease(m_FormatDesc);
         }
 
-        if (m_DisplayLink != nullptr) {
-            CVDisplayLinkStop(m_DisplayLink);
-            CVDisplayLinkRelease(m_DisplayLink);
-        }
-
-        while (!m_FrameQueue.isEmpty()) {
-            AVFrame* frame = m_FrameQueue.dequeue();
-            av_frame_free(&frame);
-        }
-
         if (m_View != nullptr) {
             [m_View removeFromSuperview];
         }
     }
 
-    void drawFrame(uint64_t vsyncTime)
+    // Caller frees frame after we return
+    virtual void renderFrameAtVsync(AVFrame* frame) override
     {
         OSStatus status;
+        CVPixelBufferRef pixBuf = reinterpret_cast<CVPixelBufferRef>(frame->data[3]);
 
-        SDL_AtomicLock(&m_FrameQueueLock);
+        if (m_DisplayLayer.status == AVQueuedSampleBufferRenderingStatusFailed) {
+            SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                        "Resetting failed AVSampleBufferDisplay layer");
 
-        int frameDropTarget;
-
-        // If the queue length history entries are large, be strict
-        // about dropping excess frames.
-        frameDropTarget = 1;
-        for (int i = 0; i < m_FrameQueueHistory.count(); i++) {
-            if (m_FrameQueueHistory[i] <= 1) {
-                // Be lenient as long as the queue length
-                // resolves before the end of frame history
-                frameDropTarget = 3;
-            }
-        }
-
-        if (m_FrameQueueHistory.count() == FRAME_HISTORY_ENTRIES) {
-            m_FrameQueueHistory.dequeue();
-        }
-
-        m_FrameQueueHistory.enqueue(m_FrameQueue.count());
-
-        // Catch up if we're several frames ahead
-        while (m_FrameQueue.count() > frameDropTarget) {
-            AVFrame* frame = m_FrameQueue.dequeue();
-            av_frame_free(&frame);
-        }
-
-        if (m_FrameQueue.isEmpty()) {
-            SDL_AtomicUnlock(&m_FrameQueueLock);
+            // Trigger the main thread to recreate the decoder
+            SDL_Event event;
+            event.type = SDL_RENDER_TARGETS_RESET;
+            SDL_PushEvent(&event);
             return;
         }
 
-        // Grab the first frame
-        AVFrame* frame = m_FrameQueue.dequeue();
-        SDL_AtomicUnlock(&m_FrameQueueLock);
-
-        CVPixelBufferRef pixBuf = reinterpret_cast<CVPixelBufferRef>(frame->data[3]);
-
         // If the format has changed or doesn't exist yet, construct it with the
         // pixel buffer data
         if (!m_FormatDesc || !CMVideoFormatDescriptionMatchesImageBuffer(m_FormatDesc, pixBuf)) {
@@ -108,7 +68,6 @@ public:
                 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
                              "CMVideoFormatDescriptionCreateForImageBuffer() failed: %d",
                              status);
-                av_frame_free(&frame);
                 return;
             }
         }
@@ -117,7 +76,7 @@ public:
         CMSampleTimingInfo timingInfo = {
             .duration = kCMTimeInvalid,
             .decodeTimeStamp = kCMTimeInvalid,
-            .presentationTimeStamp = CMTimeMake(vsyncTime, 1000 * 1000 * 1000)
+            .presentationTimeStamp = CMTimeMake(mach_absolute_time(), 1000 * 1000 * 1000)
         };
 
         CMSampleBufferRef sampleBuffer;
@@ -130,45 +89,20 @@ public:
             SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
                          "CMSampleBufferCreateReadyWithImageBuffer() failed: %d",
                          status);
-            av_frame_free(&frame);
             return;
         }
 
         [m_DisplayLayer enqueueSampleBuffer:sampleBuffer];
 
         CFRelease(sampleBuffer);
-        av_frame_free(&frame);
-    }
-
-    static
-    CVReturn
-    displayLinkOutputCallback(
-        CVDisplayLinkRef,
-        const CVTimeStamp* now,
-        const CVTimeStamp* /* vsyncTime */,
-        CVOptionFlags,
-        CVOptionFlags*,
-        void *displayLinkContext)
-    {
-        VTRenderer* me = reinterpret_cast<VTRenderer*>(displayLinkContext);
-
-        // In my testing on macOS 10.13, this callback is invoked about 24 ms
-        // prior to the specified v-sync time (now - vsyncTime). Since this is
-        // greater than the standard v-sync interval (16 ms = 60 FPS), we will
-        // draw using the current host time, rather than the actual v-sync target
-        // time. Because the CVDisplayLink is in sync with the actual v-sync
-        // interval, even if many ms prior, we can safely use the current host time
-        // and get a consistent callback for each v-sync. This reduces video latency
-        // by at least 1 frame vs. rendering with the actual vsyncTime.
-        me->drawFrame(now->hostTime);
-
-        return kCVReturnSuccess;
     }
 
     virtual bool initialize(SDL_Window* window,
                             int videoFormat,
                             int,
-                            int) override
+                            int,
+                            int,
+                            bool) override
     {
         int err;
 
@@ -243,30 +177,36 @@ public:
             return false;
         }
 
-        CVDisplayLinkCreateWithActiveCGDisplays(&m_DisplayLink);
-        CVDisplayLinkSetOutputCallback(m_DisplayLink, displayLinkOutputCallback, this);
-        CVDisplayLinkStart(m_DisplayLink);
-
         return true;
     }
 
     virtual bool prepareDecoderContext(AVCodecContext* context) override
     {
         context->hw_device_ctx = av_buffer_ref(m_HwContext);
+
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "Using VideoToolbox accelerated renderer");
+
         return true;
     }
 
-    virtual void renderFrame(AVFrame* frame) override
+    virtual bool needsTestFrame() override
     {
-        if (m_DisplayLayer.status == AVQueuedSampleBufferRenderingStatusFailed) {
-            SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
-                        "Resetting failed AVSampleBufferDisplay layer");
-            setupDisplayLayer();
-        }
+        // We query VT to determine whether the codec is supported
+        return false;
+    }
 
-        SDL_AtomicLock(&m_FrameQueueLock);
-        m_FrameQueue.enqueue(frame);
-        SDL_AtomicUnlock(&m_FrameQueueLock);
+    virtual int getDecoderCapabilities() override
+    {
+        return 0;
+    }
+
+    virtual IFFmpegRenderer::VSyncConstraint getVsyncConstraint() override
+    {
+        // This renderer is inherently tied to V-sync due how we're
+        // rendering with AVSampleBufferDisplay layer. Running without
+        // the V-Sync source leads to massive stuttering.
+        return VSYNC_FORCE_ON;
     }
 
 private:
@@ -292,10 +232,6 @@ private:
     AVSampleBufferDisplayLayer* m_DisplayLayer;
     CMVideoFormatDescriptionRef m_FormatDesc;
     NSView* m_View;
-    CVDisplayLinkRef m_DisplayLink;
-    QQueue<AVFrame*> m_FrameQueue;
-    QQueue<int> m_FrameQueueHistory;
-    SDL_SpinLock m_FrameQueueLock;
 };
 
 IFFmpegRenderer* VTRendererFactory::createRenderer() {

app/streaming/video/ffmpeg.cpp

@@ -1,5 +1,6 @@
 #include <Limelight.h>
 #include "ffmpeg.h"
+#include "streaming/streamutils.h"
 
 #ifdef Q_OS_WIN32
 #include "ffmpeg-renderers/dxva2.h"
@@ -13,98 +14,53 @@
 #include "ffmpeg-renderers/vaapi.h"
 #endif
 
-bool FFmpegVideoDecoder::chooseDecoder(
-        StreamingPreferences::VideoDecoderSelection vds,
-        SDL_Window* window,
-        int videoFormat,
-        int width, int height,
-        AVCodec*& chosenDecoder,
-        const AVCodecHWConfig*& chosenHwConfig,
-        IFFmpegRenderer*& newRenderer)
-{
-    if (videoFormat & VIDEO_FORMAT_MASK_H264) {
-        chosenDecoder = avcodec_find_decoder(AV_CODEC_ID_H264);
-    }
-    else if (videoFormat & VIDEO_FORMAT_MASK_H265) {
-        chosenDecoder = avcodec_find_decoder(AV_CODEC_ID_HEVC);
-    }
-    else {
-        Q_ASSERT(false);
-        chosenDecoder = nullptr;
-    }
-
-    if (!chosenDecoder) {
-        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                     "Unable to find decoder for format: %x",
-                     videoFormat);
-        return false;
-    }
-
-    for (int i = 0;; i++) {
-        const AVCodecHWConfig *config = avcodec_get_hw_config(chosenDecoder, i);
-        if (!config || vds == StreamingPreferences::VDS_FORCE_SOFTWARE) {
-            // No matching hardware acceleration support.
-            // This is not an error.
-            chosenHwConfig = nullptr;
-            newRenderer = new SdlRenderer();
-            if (vds != StreamingPreferences::VDS_FORCE_HARDWARE &&
-                    newRenderer->initialize(window, videoFormat, width, height)) {
-                return true;
-            }
-            else {
-                delete newRenderer;
-                newRenderer = nullptr;
-                return false;
-            }
-        }
-
-        if (!(config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX)) {
-            continue;
-        }
-
-        // Look for acceleration types we support
-        switch (config->device_type) {
-#ifdef Q_OS_WIN32
-        case AV_HWDEVICE_TYPE_DXVA2:
-            newRenderer = new DXVA2Renderer();
-            break;
+#ifdef HAVE_LIBVDPAU
+#include "ffmpeg-renderers/vdpau.h"
 #endif
-#ifdef Q_OS_DARWIN
-        case AV_HWDEVICE_TYPE_VIDEOTOOLBOX:
-            newRenderer = VTRendererFactory::createRenderer();
-            break;
-#endif
-#ifdef HAVE_LIBVA
-        case AV_HWDEVICE_TYPE_VAAPI:
-            newRenderer = new VAAPIRenderer();
-            break;
-#endif
-        default:
-            continue;
-        }
 
-        if (newRenderer->initialize(window, videoFormat, width, height)) {
-            chosenHwConfig = config;
-            return true;
-        }
-        else {
-            // Failed to initialize
-            delete newRenderer;
-            newRenderer = nullptr;
-        }
-    }
-}
+// This is gross but it allows us to use sizeof()
+#include "ffmpeg_videosamples.cpp"
+
+#define FAILED_DECODES_RESET_THRESHOLD 20
 
 bool FFmpegVideoDecoder::isHardwareAccelerated()
 {
     return m_HwDecodeCfg != nullptr;
 }
 
+int FFmpegVideoDecoder::getDecoderCapabilities()
+{
+    return m_Renderer->getDecoderCapabilities();
+}
+
+enum AVPixelFormat FFmpegVideoDecoder::ffGetFormat(AVCodecContext* context,
+                                                   const enum AVPixelFormat* pixFmts)
+{
+    FFmpegVideoDecoder* decoder = (FFmpegVideoDecoder*)context->opaque;
+    const enum AVPixelFormat *p;
+
+    for (p = pixFmts; *p != -1; p++) {
+        // Only match our hardware decoding codec or SW pixel
+        // format (if not using hardware decoding). It's crucial
+        // to override the default get_format() which will try
+        // to gracefully fall back to software decode and break us.
+        if (*p == (decoder->m_HwDecodeCfg ?
+                   decoder->m_HwDecodeCfg->pix_fmt :
+                   context->pix_fmt)) {
+            return *p;
+        }
+    }
+
+    return AV_PIX_FMT_NONE;
+}
+
 FFmpegVideoDecoder::FFmpegVideoDecoder()
     : m_VideoDecoderCtx(nullptr),
       m_DecodeBuffer(1024 * 1024, 0),
       m_HwDecodeCfg(nullptr),
-      m_Renderer(nullptr)
+      m_Renderer(nullptr),
+      m_ConsecutiveFailedDecodes(0),
+      m_Pacer(nullptr)
 {
     av_init_packet(&m_Pkt);
     SDL_AtomicSet(&m_QueuedFrames, 0);
@@ -114,6 +70,16 @@ FFmpegVideoDecoder::FFmpegVideoDecoder()
 }
 
 FFmpegVideoDecoder::~FFmpegVideoDecoder()
+{
+    reset();
+}
+
+IFFmpegRenderer* FFmpegVideoDecoder::getRenderer()
+{
+    return m_Renderer;
+}
+
+void FFmpegVideoDecoder::reset()
 {
     // Drop any frames still queued to ensure
     // they are properly freed.
@@ -132,29 +98,47 @@ FFmpegVideoDecoder::~FFmpegVideoDecoder()
             dropFrame(&event.user);
         }
         else {
-            SDL_Delay(100);
+            SDL_Delay(10);
             SDL_PumpEvents();
         }
     }
 
+    delete m_Pacer;
+    m_Pacer = nullptr;
+
+    // This must be called after deleting Pacer because it
+    // may be holding AVFrames to free in its destructor.
+    // However, it must be called before deleting the IFFmpegRenderer
+    // since the codec context may be referencing objects that we
+    // need to delete in the renderer destructor.
     avcodec_free_context(&m_VideoDecoderCtx);
 
     delete m_Renderer;
+    m_Renderer = nullptr;
 }
 
-bool FFmpegVideoDecoder::initialize(
-        StreamingPreferences::VideoDecoderSelection vds,
-        SDL_Window* window,
-        int videoFormat,
-        int width,
-        int height,
-        int)
+bool FFmpegVideoDecoder::completeInitialization(AVCodec* decoder, SDL_Window* window,
+                                                int videoFormat, int width, int height,
+                                                int maxFps, bool enableVsync, bool testOnly)
 {
-    AVCodec* decoder;
+    auto vsyncConstraint = m_Renderer->getVsyncConstraint();
+    if (vsyncConstraint == IFFmpegRenderer::VSYNC_FORCE_OFF && enableVsync) {
+        SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                    "V-sync is forcefully disabled by the active renderer");
+        enableVsync = false;
+    }
+    else if (vsyncConstraint == IFFmpegRenderer::VSYNC_FORCE_ON && !enableVsync) {
+        // FIXME: This duplicates logic in Session.cpp
+        int displayHz = StreamUtils::getDisplayRefreshRate(window);
+        if (displayHz + 5 >= maxFps) {
+            SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
+                        "V-sync is forcefully enabled by the active renderer");
+            enableVsync = true;
+        }
+    }
 
-    if (!chooseDecoder(vds, window, videoFormat, width, height,
-                       decoder, m_HwDecodeCfg, m_Renderer)) {
-        // Error logged in chooseDecoder()
+    m_Pacer = new Pacer(m_Renderer);
+    if (!m_Pacer->initialize(window, maxFps, enableVsync)) {
         return false;
     }
 
@@ -168,6 +152,10 @@ bool FFmpegVideoDecoder::initialize(
     // Always request low delay decoding
     m_VideoDecoderCtx->flags |= AV_CODEC_FLAG_LOW_DELAY;
 
+    // Allow display of corrupt frames and frames missing references
+    m_VideoDecoderCtx->flags |= AV_CODEC_FLAG_OUTPUT_CORRUPT;
+    m_VideoDecoderCtx->flags2 |= AV_CODEC_FLAG2_SHOW_ALL;
+
     // Enable slice multi-threading for software decoding
     if (!m_HwDecodeCfg) {
         m_VideoDecoderCtx->thread_type = FF_THREAD_SLICE;
@@ -182,12 +170,20 @@ bool FFmpegVideoDecoder::initialize(
     m_VideoDecoderCtx->width = width;
     m_VideoDecoderCtx->height = height;
     m_VideoDecoderCtx->pix_fmt = AV_PIX_FMT_YUV420P; // FIXME: HDR
+    m_VideoDecoderCtx->get_format = ffGetFormat;
 
     // Allow the renderer to attach data to this decoder
     if (!m_Renderer->prepareDecoderContext(m_VideoDecoderCtx)) {
         return false;
     }
 
+    // Nobody must override our ffGetFormat
+    SDL_assert(m_VideoDecoderCtx->get_format == ffGetFormat);
+
+    // Stash a pointer to this object in the context
+    SDL_assert(m_VideoDecoderCtx->opaque == nullptr);
+    m_VideoDecoderCtx->opaque = this;
+
     int err = avcodec_open2(m_VideoDecoderCtx, decoder, nullptr);
     if (err < 0) {
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
@@ -196,9 +192,155 @@ bool FFmpegVideoDecoder::initialize(
         return false;
     }
 
+    // FFMpeg doesn't completely initialize the codec until the codec
+    // config data comes in. This would be too late for us to change
+    // our minds on the selected video codec, so we'll do a trial run
+    // now to see if things will actually work when the video stream
+    // comes in.
+    if (testOnly) {
+        if (videoFormat & VIDEO_FORMAT_MASK_H264) {
+            m_Pkt.data = (uint8_t*)k_H264TestFrame;
+            m_Pkt.size = sizeof(k_H264TestFrame);
+        }
+        else {
+            m_Pkt.data = (uint8_t*)k_HEVCTestFrame;
+            m_Pkt.size = sizeof(k_HEVCTestFrame);
+        }
+
+        err = avcodec_send_packet(m_VideoDecoderCtx, &m_Pkt);
+        if (err < 0) {
+            char errorstring[512];
+            av_strerror(err, errorstring, sizeof(errorstring));
+            SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                        "Test decode failed: %s", errorstring);
+            return false;
+        }
+    }
+
+#ifdef QT_DEBUG
+    // Restore default log level before streaming
+    av_log_set_level(AV_LOG_INFO);
+#endif
+
     return true;
 }
 
+IFFmpegRenderer* FFmpegVideoDecoder::createAcceleratedRenderer(const AVCodecHWConfig* hwDecodeCfg)
+{
+    if (!(hwDecodeCfg->methods & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX)) {
+        return nullptr;
+    }
+
+    // Look for acceleration types we support
+    switch (hwDecodeCfg->device_type) {
+#ifdef Q_OS_WIN32
+    case AV_HWDEVICE_TYPE_DXVA2:
+        return new DXVA2Renderer();
+#endif
+#ifdef Q_OS_DARWIN
+    case AV_HWDEVICE_TYPE_VIDEOTOOLBOX:
+        return VTRendererFactory::createRenderer();
+#endif
+#ifdef HAVE_LIBVA
+    case AV_HWDEVICE_TYPE_VAAPI:
+        return new VAAPIRenderer();
+#endif
+#ifdef HAVE_LIBVDPAU
+    case AV_HWDEVICE_TYPE_VDPAU:
+        return new VDPAURenderer();
+#endif
+    default:
+        return nullptr;
+    }
+}
+
+bool FFmpegVideoDecoder::initialize(
+        StreamingPreferences::VideoDecoderSelection vds,
+        SDL_Window* window,
+        int videoFormat,
+        int width,
+        int height,
+        int maxFps,
+        bool enableVsync)
+{
+    AVCodec* decoder;
+
+#ifdef QT_DEBUG
+    // Increase log level during initialization
+    av_log_set_level(AV_LOG_DEBUG);
+#endif
+
+    if (videoFormat & VIDEO_FORMAT_MASK_H264) {
+        decoder = avcodec_find_decoder(AV_CODEC_ID_H264);
+    }
+    else if (videoFormat & VIDEO_FORMAT_MASK_H265) {
+        decoder = avcodec_find_decoder(AV_CODEC_ID_HEVC);
+    }
+    else {
+        Q_ASSERT(false);
+        decoder = nullptr;
+    }
+
+    if (!decoder) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                     "Unable to find decoder for format: %x",
+                     videoFormat);
+        return false;
+    }
+
+    for (int i = 0;; i++) {
+        const AVCodecHWConfig *config = avcodec_get_hw_config(decoder, i);
+        if (!config || vds == StreamingPreferences::VDS_FORCE_SOFTWARE) {
+            // No matching hardware acceleration support.
+            // This is not an error.
+            m_HwDecodeCfg = nullptr;
+            m_Renderer = new SdlRenderer();
+            if (vds != StreamingPreferences::VDS_FORCE_HARDWARE &&
+                    m_Renderer->initialize(window, videoFormat, width, height, maxFps, enableVsync) &&
+                    completeInitialization(decoder, window, videoFormat, width, height, maxFps, enableVsync, false)) {
+                return true;
+            }
+            else {
+                reset();
+                return false;
+            }
+        }
+
+        m_Renderer = createAcceleratedRenderer(config);
+        if (!m_Renderer) {
+            continue;
+        }
+
+        m_HwDecodeCfg = config;
+        // Initialize the hardware codec and submit a test frame if the renderer needs it
+        if (m_Renderer->initialize(window, videoFormat, width, height, maxFps, enableVsync) &&
+                completeInitialization(decoder, window, videoFormat, width, height, maxFps, enableVsync, m_Renderer->needsTestFrame())) {
+            if (m_Renderer->needsTestFrame()) {
+                // The test worked, so now let's initialize it for real
+                reset();
+                if ((m_Renderer = createAcceleratedRenderer(config)) != nullptr &&
+                        m_Renderer->initialize(window, videoFormat, width, height, maxFps, enableVsync) &&
+                        completeInitialization(decoder, window, videoFormat, width, height, maxFps, enableVsync, false)) {
+                    return true;
+                }
+                else {
+                    SDL_LogCritical(SDL_LOG_CATEGORY_APPLICATION,
+                                    "Decoder failed to initialize after successful test");
+                    reset();
+                }
+            }
+            else {
+                // No test required. Good to go now.
+                return true;
+            }
+        }
+        else {
+            // Failed to initialize or test frame failed, so keep looking
+            reset();
+        }
+    }
+}
+
 int FFmpegVideoDecoder::submitDecodeUnit(PDECODE_UNIT du)
 {
     PLENTRY entry = du->bufferList;
@@ -224,12 +366,23 @@ int FFmpegVideoDecoder::submitDecodeUnit(PDECODE_UNIT du)
 
     err = avcodec_send_packet(m_VideoDecoderCtx, &m_Pkt);
     if (err < 0) {
-        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
-                    "Decoding failed: %d", err);
         char errorstring[512];
         av_strerror(err, errorstring, sizeof(errorstring));
         SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
-                    "Decoding failed: %s", errorstring);
+                    "avcodec_send_packet() failed: %s", errorstring);
+
+        // If we've failed a bunch of decodes in a row, the decoder/renderer is
+        // clearly unhealthy, so let's generate a synthetic reset event to trigger
+        // the event loop to destroy and recreate the decoder.
+        if (++m_ConsecutiveFailedDecodes == FAILED_DECODES_RESET_THRESHOLD) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "Resetting decoder due to consistent failure");
+
+            SDL_Event event;
+            event.type = SDL_RENDER_DEVICE_RESET;
+            SDL_PushEvent(&event);
+        }
+
         return DR_NEED_IDR;
     }
 
@@ -244,12 +397,29 @@ int FFmpegVideoDecoder::submitDecodeUnit(PDECODE_UNIT du)
 
     err = avcodec_receive_frame(m_VideoDecoderCtx, frame);
     if (err == 0) {
+        // Reset failed decodes count if we reached this far
+        m_ConsecutiveFailedDecodes = 0;
+
         // Queue the frame for rendering from the main thread
         SDL_AtomicIncRef(&m_QueuedFrames);
         queueFrame(frame);
     }
     else {
         av_frame_free(&frame);
+
+        char errorstring[512];
+        av_strerror(err, errorstring, sizeof(errorstring));
+        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                    "avcodec_receive_frame() failed: %s", errorstring);
+
+        if (++m_ConsecutiveFailedDecodes == FAILED_DECODES_RESET_THRESHOLD) {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+                         "Resetting decoder due to consistent failure");
+
+            SDL_Event event;
+            event.type = SDL_RENDER_DEVICE_RESET;
+            SDL_PushEvent(&event);
+        }
     }
 
     return DR_OK;
@@ -259,7 +429,7 @@ int FFmpegVideoDecoder::submitDecodeUnit(PDECODE_UNIT du)
 void FFmpegVideoDecoder::renderFrame(SDL_UserEvent* event)
 {
     AVFrame* frame = reinterpret_cast<AVFrame*>(event->data1);
-    m_Renderer->renderFrame(frame);
+    m_Pacer->submitFrame(frame);
     SDL_AtomicDecRef(&m_QueuedFrames);
 }
 
@@ -267,6 +437,15 @@ void FFmpegVideoDecoder::renderFrame(SDL_UserEvent* event)
 void FFmpegVideoDecoder::dropFrame(SDL_UserEvent* event)
 {
     AVFrame* frame = reinterpret_cast<AVFrame*>(event->data1);
-    av_frame_free(&frame);
+    // If Pacer is using a frame queue, we can just queue the
+    // frame and let it decide whether to drop or not. If Pacer
+    // is submitting directly for rendering, we drop the frame
+    // ourselves.
+    if (m_Pacer->isUsingFrameQueue()) {
+        m_Pacer->submitFrame(frame);
+    }
+    else {
+        av_frame_free(&frame);
+    }
     SDL_AtomicDecRef(&m_QueuedFrames);
 }

app/streaming/video/ffmpeg.h

@@ -2,6 +2,7 @@
 
 #include "decoder.h"
 #include "ffmpeg-renderers/renderer.h"
+#include "ffmpeg-renderers/pacer/pacer.h"
 
 extern "C" {
 #include <libavcodec/avcodec.h>
@@ -16,22 +17,28 @@ public:
                             int videoFormat,
                             int width,
                             int height,
-                            int frameRate) override;
+                            int maxFps,
+                            bool enableVsync) override;
     virtual bool isHardwareAccelerated() override;
+    virtual int getDecoderCapabilities() override;
     virtual int submitDecodeUnit(PDECODE_UNIT du) override;
     virtual void renderFrame(SDL_UserEvent* event) override;
     virtual void dropFrame(SDL_UserEvent* event) override;
 
+    virtual IFFmpegRenderer* getRenderer();
+
 private:
-    bool
-    chooseDecoder(
-        StreamingPreferences::VideoDecoderSelection vds,
-        SDL_Window* window,
-        int videoFormat,
-        int width, int height,
-        AVCodec*& chosenDecoder,
-        const AVCodecHWConfig*& chosenHwConfig,
-        IFFmpegRenderer*& newRenderer);
+    bool completeInitialization(AVCodec* decoder, SDL_Window* window,
+                                int videoFormat, int width, int height,
+                                int maxFps, bool enableVsync, bool testOnly);
+
+    IFFmpegRenderer* createAcceleratedRenderer(const AVCodecHWConfig* hwDecodeCfg);
+
+    void reset();
+
+    static
+    enum AVPixelFormat ffGetFormat(AVCodecContext* context,
+                                   const enum AVPixelFormat* pixFmts);
 
     AVPacket m_Pkt;
     AVCodecContext* m_VideoDecoderCtx;
@@ -39,4 +46,9 @@ private:
     const AVCodecHWConfig* m_HwDecodeCfg;
     IFFmpegRenderer* m_Renderer;
     SDL_atomic_t m_QueuedFrames;
+    int m_ConsecutiveFailedDecodes;
+    Pacer* m_Pacer;
+
+    static const uint8_t k_H264TestFrame[];
+    static const uint8_t k_HEVCTestFrame[];
 };

app/streaming/video/ffmpeg_videosamples.cpp

@@ -0,0 +1,19 @@
+#include "ffmpeg.h"
+
+// 720p 60 FPS H.264 with 1 reference frame
+const uint8_t FFmpegVideoDecoder::k_H264TestFrame[] = {
+    0x00, 0x00, 0x00, 0x01, 0x67, 0x64, 0x00, 0x20, 0xac, 0x2b, 0x40, 0x28, 0x02, 0xdd, 0x80, 0xb5, 0x06, 0x06, 0x06, 0xa5, 0x00, 0x00, 0x03, 0x03, 0xe8, 0x00, 0x01, 0xd4, 0xc0, 0x8f, 0x4a, 0xa0,
+    0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x3c, 0xb0,
+    0x00, 0x00, 0x00, 0x01, 0x65, 0xb8, 0x02, 0x01, 0x67, 0x25, 0x1b, 0xf4, 0xfa, 0x7d, 0x40, 0x1a, 0x78, 0xe5, 0x10, 0x52, 0xc2, 0xee, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0xc6, 0xef, 0xbb, 0x81, 0x85, 0x2d, 0x47, 0xda, 0xca, 0x4c, 0x00, 0x00, 0x03, 0x00, 0x02, 0x7b, 0xcf, 0x80, 0x00, 0x45, 0x40, 0x01, 0x8d, 0xa6, 0x00, 0x01, 0x64, 0x00, 0x0e, 0x03, 0xc8, 0x00, 0x0e, 0x10, 0x00, 0xbd, 0xc5, 0x00, 0x01, 0x11, 0x00, 0x0e, 0xa3, 0x80, 0x00, 0x38, 0xa0,
+    0x00, 0x00, 0x01, 0x65, 0x00, 0x6e, 0x2e, 0x00, 0x83, 0x7f, 0xb4, 0x8e, 0x79, 0xa5, 0xff, 0x84, 0x3f, 0x7f, 0x34, 0x3f, 0x97, 0x1b, 0xaf, 0x31, 0x5f, 0x6e, 0xaa, 0xb6, 0xac, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x78, 0x36, 0x9d, 0xa4, 0x65, 0xf9, 0x1e, 0x5b, 0x3a, 0xb0, 0x40, 0x00, 0x00, 0x03, 0x00, 0x00, 0x41, 0x80, 0x00, 0xc5, 0xc8, 0x00, 0x00, 0xfa, 0x00, 0x03, 0x24, 0x00, 0x0e, 0x20, 0x00, 0x3f, 0x80, 0x01, 0x32, 0x00, 0x08, 0x68, 0x00, 0x3e, 0xc0, 0x03, 0x8a,
+    0x00, 0x00, 0x01, 0x65, 0x00, 0x37, 0x0b, 0x80, 0x21, 0x7f, 0xe3, 0x85, 0x1c, 0xd9, 0xff, 0xe1, 0x1b, 0x01, 0xfa, 0xc0, 0x3e, 0x11, 0x7e, 0xfe, 0x45, 0x5c, 0x43, 0x69, 0x31, 0x4b, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x02, 0x24, 0xae, 0x1a, 0xbb, 0xae, 0x75, 0x9e, 0x35, 0xae, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x03, 0x64, 0x00, 0x09, 0x98, 0x00, 0x1e, 0xc0, 0x00, 0x64, 0x80, 0x01, 0xc4, 0x00, 0x07, 0xf0, 0x00, 0x42, 0xf0, 0x00, 0x00, 0xe1, 0x98, 0x00, 0x05, 0x4b, 0x28, 0x00, 0x06, 0x04,
+    0x00, 0x00, 0x01, 0x65, 0x00, 0x14, 0xa2, 0xe0, 0x08, 0x5f, 0xe3, 0x85, 0x1c, 0xd9, 0xff, 0xe1, 0x1b, 0x01, 0xfa, 0xc0, 0x3e, 0x11, 0x7e, 0xfe, 0x45, 0x5c, 0x43, 0x69, 0x31, 0x4b, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x02, 0x24, 0xb9, 0x7d, 0xb4, 0x70, 0x4d, 0x15, 0xc5, 0x0a, 0x4e, 0x60, 0x00, 0x00, 0x03, 0x00, 0x00, 0x26, 0xa8, 0xb0, 0x00, 0x13, 0xcd, 0xcc, 0x00, 0x07, 0x48, 0x88, 0x00, 0x06, 0x29, 0x69, 0x00, 0x01, 0x16, 0xac, 0x80, 0x00, 0x9e, 0x4e, 0x80, 0x00, 0x3f, 0x84, 0x20, 0x00, 0x6f, 0x41, 0xa0, 0x00, 0x20, 0x00, 0x02, 0x16, 0xb8, 0x00, 0x08, 0x08
+};
+
+// 720p 60 FPS HEVC with 1 reference frame
+const uint8_t FFmpegVideoDecoder::k_HEVCTestFrame[] = {
+    0x00, 0x00, 0x00, 0x01, 0x40, 0x01, 0x0c, 0x01, 0xff, 0xff, 0x01, 0x40, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x78, 0xac, 0x09,
+    0x00, 0x00, 0x00, 0x01, 0x42, 0x01, 0x01, 0x01, 0x40, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x78, 0xa0, 0x02, 0x80, 0x80, 0x2e, 0x1f, 0x13, 0x96, 0xb4, 0xa4, 0x25, 0x92, 0xe3, 0x01, 0x6a, 0x0c, 0x0c, 0x0d, 0x48, 0x20, 0x00, 0x00, 0x03, 0x00, 0x20, 0x00, 0x00, 0x07, 0x85, 0xf1, 0xa2, 0xd0,
+    0x00, 0x00, 0x00, 0x01, 0x44, 0x01, 0xc0, 0xf7, 0xc0, 0xcc, 0x90,
+    0x00, 0x00, 0x00, 0x01, 0x2a, 0x01, 0xac, 0x0c, 0xf0, 0xe6, 0xf6, 0x5e, 0xff, 0xd9, 0x97, 0xeb, 0x44, 0x7d, 0x1f, 0xa4, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x03, 0x52, 0x7c, 0x4e, 0x5b, 0xfe, 0xbe, 0xc2, 0x87, 0x20, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x2b, 0x60,
+};

app/streaming/video/sl.cpp

@@ -25,10 +25,16 @@ SLVideoDecoder::isHardwareAccelerated()
     return true;
 }
 
+int
+SLVideoDecoder::getDecoderCapabilities()
+{
+    return 0;
+}
+
 bool
 SLVideoDecoder::initialize(StreamingPreferences::VideoDecoderSelection vds,
                            SDL_Window*,
-                           int videoFormat, int, int, int frameRate)
+                           int videoFormat, int, int, int frameRate, bool)
 {
     // SLVideo only supports hardware decoding
     if (vds == StreamingPreferences::VDS_FORCE_SOFTWARE) {

app/streaming/video/sl.h

@@ -14,8 +14,10 @@ public:
                             int videoFormat,
                             int width,
                             int height,
-                            int frameRate);
+                            int frameRate,
+                            bool enableVsync);
     virtual bool isHardwareAccelerated();
+    virtual int getDecoderCapabilities();
     virtual int submitDecodeUnit(PDECODE_UNIT du);
 
     // Unused since rendering is done directly from the decode thread

libs/mac/Frameworks/SDL2.framework/Headers

@@ -0,0 +1 @@
+Versions/Current/Headers

libs/mac/Frameworks/SDL2.framework/Resources

@@ -0,0 +1 @@
+Versions/Current/Resources

libs/mac/Frameworks/SDL2.framework/SDL2

@@ -0,0 +1 @@
+Versions/Current/SDL2