moonlight-qt/app/cli/commandlineparser.cpp
2021-05-16 14:45:53 -05:00

466 lines
17 KiB
C++

#include "commandlineparser.h"
#include <QCommandLineParser>
#include <QRegularExpression>
#if defined(Q_OS_WIN)
#include <qt_windows.h>
#endif
static bool inRange(int value, int min, int max)
{
return value >= min && value <= max;
}
// This method returns key's value from QMap where the key is a QString.
// Key matching is case insensitive.
template <typename T>
static T mapValue(QMap<QString, T> map, QString key)
{
for(auto& item : map.toStdMap()) {
if (QString::compare(item.first, key, Qt::CaseInsensitive) == 0) {
return item.second;
}
}
return T();
}
class CommandLineParser : public QCommandLineParser
{
public:
enum MessageType {
Info,
Error
};
void setupCommonOptions()
{
setSingleDashWordOptionMode(QCommandLineParser::ParseAsLongOptions);
addHelpOption();
addVersionOption();
}
void handleHelpAndVersionOptions()
{
if (isSet("help")) {
showInfo(helpText());
}
if (isSet("version")) {
showVersion();
}
}
void handleUnknownOptions()
{
if (!unknownOptionNames().isEmpty()) {
showError(QString("Unknown options: %1").arg(unknownOptionNames().join(", ")));
}
}
void showMessage(QString message, MessageType type) const
{
#if defined(Q_OS_WIN32)
UINT flags = MB_OK | MB_TOPMOST | MB_SETFOREGROUND;
flags |= (type == Info ? MB_ICONINFORMATION : MB_ICONERROR);
QString title = "Moonlight";
MessageBoxW(nullptr, reinterpret_cast<const wchar_t *>(message.utf16()),
reinterpret_cast<const wchar_t *>(title.utf16()), flags);
#endif
message = message.endsWith('\n') ? message : message + '\n';
fputs(qPrintable(message), type == Info ? stdout : stderr);
}
[[ noreturn ]] void showInfo(QString message) const
{
showMessage(message, Info);
exit(0);
}
[[ noreturn ]] void showError(QString message) const
{
showMessage(message + "\n\n" + helpText(), Error);
exit(1);
}
int getIntOption(QString name) const
{
bool ok;
int intValue = value(name).toInt(&ok);
if (!ok) {
showError(QString("Invalid %1 value: %2").arg(name, value(name)));
}
return intValue;
}
bool getToggleOptionValue(QString name, bool defaultValue) const
{
QRegularExpression re(QString("^(%1|no-%1)$").arg(name));
QStringList options = optionNames().filter(re);
if (options.isEmpty()) {
return defaultValue;
} else {
return options.last() == name;
}
}
QString getChoiceOptionValue(QString name) const
{
if (!m_Choices[name].contains(value(name), Qt::CaseInsensitive)) {
showError(QString("Invalid %1 choice: %2").arg(name, value(name)));
}
return value(name);
}
QPair<int,int> getResolutionOptionValue(QString name) const
{
QRegularExpression re("^(\\d+)x(\\d+)$", QRegularExpression::CaseInsensitiveOption);
auto match = re.match(value(name));
if (!match.hasMatch()) {
showError(QString("Invalid %1 format: %2").arg(name, value(name)));
}
return qMakePair(match.captured(1).toInt(), match.captured(2).toInt());
}
void addFlagOption(QString name, QString descriptiveName)
{
addOption(QCommandLineOption(name, QString("Use %1.").arg(descriptiveName)));
}
void addToggleOption(QString name, QString descriptiveName)
{
addOption(QCommandLineOption(name, QString("Use %1.").arg(descriptiveName)));
addOption(QCommandLineOption("no-" + name, QString("Do not use %1.").arg(descriptiveName)));
}
void addValueOption(QString name, QString descriptiveName)
{
addOption(QCommandLineOption(name, QString("Specify %1 to use.").arg(descriptiveName), name));
}
void addChoiceOption(QString name, QString descriptiveName, QStringList choices)
{
addOption(QCommandLineOption(name, QString("Select %1: %2.").arg(descriptiveName, choices.join('/')), name));
m_Choices[name] = choices;
}
private:
QMap<QString, QStringList> m_Choices;
};
GlobalCommandLineParser::GlobalCommandLineParser()
{
}
GlobalCommandLineParser::~GlobalCommandLineParser()
{
}
GlobalCommandLineParser::ParseResult GlobalCommandLineParser::parse(const QStringList &args)
{
CommandLineParser parser;
parser.setupCommonOptions();
parser.setApplicationDescription(
"\n"
"Starts Moonlight normally if no arguments are given.\n"
"\n"
"Available actions:\n"
" quit Quit the currently running app\n"
" stream Start streaming an app\n"
"\n"
"See 'moonlight <action> --help' for help of specific action."
);
parser.addPositionalArgument("action", "Action to execute", "<action>");
parser.parse(args);
auto posArgs = parser.positionalArguments();
if (posArgs.isEmpty()) {
// This method will not return and terminates the process if --version
// or --help is specified
parser.handleHelpAndVersionOptions();
parser.handleUnknownOptions();
return NormalStartRequested;
}
else {
// If users supply arguments that accept values prior to the "quit"
// or "stream" positional arguments, we will not be able to correctly
// parse the value out of the input because this QCommandLineParser
// doesn't know about all of the options that "quit" and "stream"
// commands can accept. To work around this issue, we just look
// for "quit" or "stream" positional arguments anywhere.
for (int i = 0; i < posArgs.size(); i++) {
QString action = posArgs.at(i).toLower();
if (action == "quit") {
return QuitRequested;
} else if (action == "stream") {
return StreamRequested;
}
}
parser.showError(QString("Invalid action"));
}
}
QuitCommandLineParser::QuitCommandLineParser()
{
}
QuitCommandLineParser::~QuitCommandLineParser()
{
}
void QuitCommandLineParser::parse(const QStringList &args)
{
CommandLineParser parser;
parser.setupCommonOptions();
parser.setApplicationDescription(
"\n"
"Quit the currently running app on the given host."
);
parser.addPositionalArgument("quit", "quit running app");
parser.addPositionalArgument("host", "Host computer name, UUID, or IP address", "<host>");
if (!parser.parse(args)) {
parser.showError(parser.errorText());
}
parser.handleUnknownOptions();
// This method will not return and terminates the process if --version or
// --help is specified
parser.handleHelpAndVersionOptions();
// Verify that host has been provided
auto posArgs = parser.positionalArguments();
if (posArgs.length() < 2) {
parser.showError("Host not provided");
}
m_Host = parser.positionalArguments().at(1);
}
QString QuitCommandLineParser::getHost() const
{
return m_Host;
}
StreamCommandLineParser::StreamCommandLineParser()
{
m_WindowModeMap = {
{"fullscreen", StreamingPreferences::WM_FULLSCREEN},
{"windowed", StreamingPreferences::WM_WINDOWED},
{"borderless", StreamingPreferences::WM_FULLSCREEN_DESKTOP},
};
m_AudioConfigMap = {
{"stereo", StreamingPreferences::AC_STEREO},
{"5.1-surround", StreamingPreferences::AC_51_SURROUND},
{"7.1-surround", StreamingPreferences::AC_71_SURROUND},
};
m_VideoCodecMap = {
{"auto", StreamingPreferences::VCC_AUTO},
{"H.264", StreamingPreferences::VCC_FORCE_H264},
{"HEVC", StreamingPreferences::VCC_FORCE_HEVC},
};
m_VideoDecoderMap = {
{"auto", StreamingPreferences::VDS_AUTO},
{"software", StreamingPreferences::VDS_FORCE_SOFTWARE},
{"hardware", StreamingPreferences::VDS_FORCE_HARDWARE},
};
m_CaptureSysKeysModeMap = {
{"never", StreamingPreferences::CSK_OFF},
{"fullscreen", StreamingPreferences::CSK_FULLSCREEN},
{"always", StreamingPreferences::CSK_ALWAYS},
};
}
StreamCommandLineParser::~StreamCommandLineParser()
{
}
void StreamCommandLineParser::parse(const QStringList &args, StreamingPreferences *preferences)
{
CommandLineParser parser;
parser.setupCommonOptions();
parser.setApplicationDescription(
"\n"
"Starts directly streaming a given app."
);
parser.addPositionalArgument("stream", "Start stream");
// Add other arguments and options
parser.addPositionalArgument("host", "Host computer name, UUID, or IP address", "<host>");
parser.addPositionalArgument("app", "App to stream", "\"<app>\"");
parser.addFlagOption("720", "1280x720 resolution");
parser.addFlagOption("1080", "1920x1080 resolution");
parser.addFlagOption("1440", "2560x1440 resolution");
parser.addFlagOption("4K", "3840x2160 resolution");
parser.addValueOption("resolution", "custom <width>x<height> resolution");
parser.addToggleOption("vsync", "V-Sync");
parser.addValueOption("fps", "FPS");
parser.addValueOption("bitrate", "bitrate in Kbps");
parser.addValueOption("packet-size", "video packet size");
parser.addChoiceOption("display-mode", "display mode", m_WindowModeMap.keys());
parser.addChoiceOption("audio-config", "audio config", m_AudioConfigMap.keys());
parser.addToggleOption("multi-controller", "multiple controller support");
parser.addToggleOption("quit-after", "quit app after session");
parser.addToggleOption("absolute-mouse", "remote desktop optimized mouse control");
parser.addToggleOption("mouse-buttons-swap", "left and right mouse buttons swap");
parser.addToggleOption("touchscreen-trackpad", "touchscreen in trackpad mode");
parser.addToggleOption("game-optimization", "game optimizations");
parser.addToggleOption("audio-on-host", "audio on host PC");
parser.addToggleOption("frame-pacing", "frame pacing");
parser.addToggleOption("mute-on-focus-loss", "mute audio when Moonlight window loses focus");
parser.addToggleOption("background-gamepad", "background gamepad input");
parser.addToggleOption("reverse-scroll-direction", "inverted scroll direction");
parser.addToggleOption("swap-gamepad-buttons", "swap A/B and X/Y gamepad buttons (Nintendo-style)");
parser.addChoiceOption("capture-system-keys", "capture system key combos", m_CaptureSysKeysModeMap.keys());
parser.addChoiceOption("video-codec", "video codec", m_VideoCodecMap.keys());
parser.addChoiceOption("video-decoder", "video decoder", m_VideoDecoderMap.keys());
if (!parser.parse(args)) {
parser.showError(parser.errorText());
}
parser.handleUnknownOptions();
// Resolve display's width and height
QRegularExpression resolutionRexExp("^(720|1080|1440|4K|resolution)$");
QStringList resoOptions = parser.optionNames().filter(resolutionRexExp);
bool displaySet = !resoOptions.isEmpty();
if (displaySet) {
QString name = resoOptions.last();
if (name == "720") {
preferences->width = 1280;
preferences->height = 720;
} else if (name == "1080") {
preferences->width = 1920;
preferences->height = 1080;
} else if (name == "1440") {
preferences->width = 2560;
preferences->height = 1440;
} else if (name == "4K") {
preferences->width = 3840;
preferences->height = 2160;
} else if (name == "resolution") {
auto resolution = parser.getResolutionOptionValue(name);
preferences->width = resolution.first;
preferences->height = resolution.second;
}
}
// Resolve --fps option
if (parser.isSet("fps")) {
preferences->fps = parser.getIntOption("fps");
if (!inRange(preferences->fps, 30, 240)) {
parser.showError("FPS must be in range: 30 - 240");
}
}
// Resolve --bitrate option
if (parser.isSet("bitrate")) {
preferences->bitrateKbps = parser.getIntOption("bitrate");
if (!inRange(preferences->bitrateKbps, 500, 150000)) {
parser.showError("Bitrate must be in range: 500 - 150000");
}
} else if (displaySet || parser.isSet("fps")) {
preferences->bitrateKbps = preferences->getDefaultBitrate(
preferences->width, preferences->height, preferences->fps);
}
// Resolve --packet-size option
if (parser.isSet("packet-size")) {
preferences->packetSize = parser.getIntOption("packet-size");
if (preferences->packetSize < 1024) {
parser.showError("Packet size must be greater than 1024 bytes");
}
}
// Resolve --display option
if (parser.isSet("display-mode")) {
preferences->windowMode = mapValue(m_WindowModeMap, parser.getChoiceOptionValue("display-mode"));
}
// Resolve --vsync and --no-vsync options
preferences->enableVsync = parser.getToggleOptionValue("vsync", preferences->enableVsync);
// Resolve --audio-config option
if (parser.isSet("audio-config")) {
preferences->audioConfig = mapValue(m_AudioConfigMap, parser.getChoiceOptionValue("audio-config"));
}
// Resolve --multi-controller and --no-multi-controller options
preferences->multiController = parser.getToggleOptionValue("multi-controller", preferences->multiController);
// Resolve --quit-after and --no-quit-after options
preferences->quitAppAfter = parser.getToggleOptionValue("quit-after", preferences->quitAppAfter);
// Resolve --absolute-mouse and --no-absolute-mouse options
preferences->absoluteMouseMode = parser.getToggleOptionValue("absolute-mouse", preferences->absoluteMouseMode);
// Resolve --mouse-buttons-swap and --no-mouse-buttons-swap options
preferences->swapMouseButtons = parser.getToggleOptionValue("mouse-buttons-swap", preferences->swapMouseButtons);
// Resolve --touchscreen-trackpad and --no-touchscreen-trackpad options
preferences->absoluteTouchMode = !parser.getToggleOptionValue("touchscreen-trackpad", !preferences->absoluteTouchMode);
// Resolve --game-optimization and --no-game-optimization options
preferences->gameOptimizations = parser.getToggleOptionValue("game-optimization", preferences->gameOptimizations);
// Resolve --audio-on-host and --no-audio-on-host options
preferences->playAudioOnHost = parser.getToggleOptionValue("audio-on-host", preferences->playAudioOnHost);
// Resolve --frame-pacing and --no-frame-pacing options
preferences->framePacing = parser.getToggleOptionValue("frame-pacing", preferences->framePacing);
// Resolve --mute-on-focus-loss and --no-mute-on-focus-loss options
preferences->muteOnFocusLoss = parser.getToggleOptionValue("mute-on-focus-loss", preferences->muteOnFocusLoss);
// Resolve --background-gamepad and --no-background-gamepad options
preferences->backgroundGamepad = parser.getToggleOptionValue("background-gamepad", preferences->backgroundGamepad);
// Resolve --reverse-scroll-direction and --no-reverse-scroll-direction options
preferences->reverseScrollDirection = parser.getToggleOptionValue("reverse-scroll-direction", preferences->reverseScrollDirection);
// Resolve --swap-gamepad-buttons and --no-swap-gamepad-buttons options
preferences->swapFaceButtons = parser.getToggleOptionValue("swap-gamepad-buttons", preferences->swapFaceButtons);
// Resolve --capture-system-keys option
if (parser.isSet("capture-system-keys")) {
preferences->captureSysKeysMode = mapValue(m_CaptureSysKeysModeMap, parser.getChoiceOptionValue("capture-system-keys"));
}
// Resolve --video-codec option
if (parser.isSet("video-codec")) {
preferences->videoCodecConfig = mapValue(m_VideoCodecMap, parser.getChoiceOptionValue("video-codec"));
}
// Resolve --video-decoder option
if (parser.isSet("video-decoder")) {
preferences->videoDecoderSelection = mapValue(m_VideoDecoderMap, parser.getChoiceOptionValue("video-decoder"));
}
// This method will not return and terminates the process if --version or
// --help is specified
parser.handleHelpAndVersionOptions();
// Verify that both host and app has been provided
auto posArgs = parser.positionalArguments();
if (posArgs.length() < 2) {
parser.showError("Host not provided");
}
m_Host = parser.positionalArguments().at(1);
if (posArgs.length() < 3) {
parser.showError("App not provided");
}
m_AppName = parser.positionalArguments().at(2);
}
QString StreamCommandLineParser::getHost() const
{
return m_Host;
}
QString StreamCommandLineParser::getAppName() const
{
return m_AppName;
}