UWP fixes after Gemini code review...

UWP/App.cpp

@@ -282,8 +282,10 @@ void App::OnSuspending(const IInspectable& sender, const SuspendingEventArgs& ar
 	auto app = this;
 
 	std::thread([app, deferral]() {
-		g_Config.Save("App::OnSuspending");
-		app->m_deviceResources->Trim();
+		try {
+			g_Config.Save("App::OnSuspending");
+			app->m_deviceResources->Trim();
+		} catch (...) {}
 		deferral.Complete();
 	}).detach();
 }

UWP/PPSSPP_UWPMain.cpp

@@ -328,8 +328,14 @@ bool IsMobile() {
 }
 
 void GetVersionInfo(uint32_t& major, uint32_t& minor, uint32_t& build, uint32_t& revision) {
+	major = minor = build = revision = 0;
 	winrt::hstring deviceFamilyVersion = winrt::Windows::System::Profile::AnalyticsInfo::VersionInfo().DeviceFamilyVersion();
-	uint64_t version = std::stoull(std::wstring(deviceFamilyVersion));
+	uint64_t version = 0;
+	try {
+		version = std::stoull(std::wstring(deviceFamilyVersion));
+	} catch (...) {
+		return;
+	}
 
 	major = static_cast<uint32_t>((version & 0xFFFF000000000000L) >> 48);
 	minor = static_cast<uint32_t>((version & 0x0000FFFF00000000L) >> 32);
@@ -432,6 +438,7 @@ int64_t System_GetPropertyInt(SystemProperty prop) {
 		if (corewindow) {
 			return  (int)corewindow.Bounds().Width;
 		}
+		return -1;
 	}
 	case SYSPROP_DISPLAY_YRES:
 	{
@@ -439,6 +446,7 @@ int64_t System_GetPropertyInt(SystemProperty prop) {
 		if (corewindow) {
 			return (int)corewindow.Bounds().Height;
 		}
+		return -1;
 	}
 	default:
 		return -1;
@@ -651,8 +659,12 @@ bool System_MakeRequest(SystemRequestType type, int requestId, const std::string
 }
 
 void System_LaunchUrl(LaunchUrlType urlType, std::string_view url) {
-	auto uri = winrt::Windows::Foundation::Uri(ToHString(url));
-	winrt::Windows::System::Launcher::LaunchUriAsync(uri);
+	try {
+		auto uri = winrt::Windows::Foundation::Uri(ToHString(url));
+		winrt::Windows::System::Launcher::LaunchUriAsync(uri);
+	} catch (const winrt::hresult_error &e) {
+		ERROR_LOG(Log::System, "System_LaunchUrl: invalid URI: %s", winrt::to_string(e.message()).c_str());
+	}
 }
 
 void System_Vibrate(int length_ms) {

UWP/XAudioSoundStream.cpp

@@ -11,8 +11,6 @@
 #include "Common/Audio/AudioBackend.h"
 #include "XAudioSoundStream.h"
 
-const size_t BUFSIZE = 32 * 1024;
-
 class XAudioBackend : public AudioBackend {
 public:
 	XAudioBackend();
@@ -45,7 +43,7 @@ private:
 
 	WAVEFORMATEX format_;
 
-	int sampleRate_ = 44100;
+	int sampleRate_ = 48000;
 	int periodFrames_ = 0;
 
 	enum {
@@ -62,9 +60,6 @@ private:
 	std::atomic<bool> running_{};
 };
 
-// TODO: Get rid of this
-static XAudioBackend *g_dsound;
-
 XAudioBackend::XAudioBackend() {
 	format_.wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
 	format_.nChannels = channels;
@@ -85,10 +80,18 @@ void XAudioBackend::Stop() {
 		thread_.join();
 	}
 
+	if (sourceVoice_) {
+		sourceVoice_->Stop(0, XAUDIO2_COMMIT_NOW);
+		sourceVoice_->DestroyVoice();
+		sourceVoice_ = nullptr;
+	}
+	if (masterVoice_) {
+		masterVoice_->DestroyVoice();
+		masterVoice_ = nullptr;
+	}
 	if (xaudioDevice) {
 		xaudioDevice->Release();
 		xaudioDevice = nullptr;
-		sourceVoice_ = nullptr;
 	}
 }
 
@@ -114,6 +117,8 @@ bool XAudioBackend::InitOutputDevice(std::string_view uniqueId, LatencyMode late
 	}
 
 	if FAILED(xaudioDevice->CreateSourceVoice(&sourceVoice_, &format_, 0, 1.0, nullptr, nullptr, nullptr)) {
+		masterVoice_->DestroyVoice();
+		masterVoice_ = nullptr;
 		xaudioDevice->Release();
 		xaudioDevice = nullptr;
 		return false;
@@ -124,6 +129,10 @@ bool XAudioBackend::InitOutputDevice(std::string_view uniqueId, LatencyMode late
 	cursor_ = 0;
 
 	if FAILED(sourceVoice_->Start(0, XAUDIO2_COMMIT_NOW)) {
+		sourceVoice_->DestroyVoice();
+		sourceVoice_ = nullptr;
+		masterVoice_->DestroyVoice();
+		masterVoice_ = nullptr;
 		xaudioDevice->Release();
 		xaudioDevice = nullptr;
 		return false;