feat(game/five): adhere to 'mute audio on focus loss' for Citizen cod…

…e too

code/components/extra-natives-five/src/NuiAudioSink.cpp

@@ -28,6 +28,8 @@
 #include <ScriptEngine.h>
 #include <audDspEffect.h>
 
+#include <GameAudioState.h>
+
 static concurrency::concurrent_queue<std::function<void()>> g_mainQueue;
 
 namespace rage
@@ -1778,6 +1780,11 @@ static InitFunction initFunction([]()
 				active = true;
 			}
 
+			if (ShouldMuteGameAudio())
+			{
+				active = false;
+			}
+
 #if SMTEST
 			static uint8_t mySubmix = 0;
 

code/components/glue/src/GtaNui.cpp

@@ -15,6 +15,10 @@
 
 #include <wrl.h>
 
+#if __has_include(<GameAudioState.h>)
+#include <GameAudioState.h>
+#endif
+
 namespace WRL = Microsoft::WRL;
 
 using nui::GITexture;
@@ -634,6 +638,13 @@ static GtaNuiInterface nuiGi;
 
 static InitFunction initFunction([]()
 {
+#if __has_include(<GameAudioState.h>)
+	nuiGi.QueryShouldMute.Connect([](bool& shouldMute)
+	{
+		shouldMute = shouldMute || ShouldMuteGameAudio();
+	});
+#endif
+
 	OnGrcCreateDevice.Connect([]()
 	{
 		nuiGi.OnInitRenderer();

code/components/gta-core-five/include/GameAudioState.h

@@ -0,0 +1,10 @@
+#pragma once
+
+// Returns whether or not any game-related audio should be muted as a result of 'mute on focus loss'
+bool
+#ifdef COMPILING_GTA_CORE_FIVE
+DLL_EXPORT
+#else
+DLL_IMPORT
+#endif
+	ShouldMuteGameAudio();

code/components/gta-core-five/src/GameAudioState.cpp

@@ -0,0 +1,17 @@
+#include <StdInc.h>
+#include <Hooking.h>
+
+static bool* audioNotFocused;
+static int* muteOnFocusLoss; 
+
+bool DLL_EXPORT ShouldMuteGameAudio()
+{
+	return *audioNotFocused && *muteOnFocusLoss;
+}
+
+static HookFunction hookFunction([]()
+{
+	auto location = hook::get_pattern<char>("75 17 40 38 2D ? ? ? ? 74 0E 39 2D", 5);
+	audioNotFocused = hook::get_address<bool*>(location);
+	muteOnFocusLoss = hook::get_address<int*>(location + 8);
+});

code/components/gta-net-five/src/MumbleVoice.cpp

@@ -30,6 +30,10 @@
 
 #include <CrossBuildRuntime.h>
 
+#if __has_include(<GameAudioState.h>)
+#include <GameAudioState.h>
+#endif
+
 class FxNativeInvoke
 {
 private:
@@ -253,7 +257,16 @@ static void Mumble_RunFrame()
 
 	g_mumbleClient->SetActivationMode(activationMode);
 
-	g_mumbleClient->SetOutputVolume(g_preferenceArray[PREF_VOICE_OUTPUT_VOLUME] * 0.1f);
+#if __has_include(<GameAudioState.h>)
+	if (ShouldMuteGameAudio())
+	{
+		g_mumbleClient->SetOutputVolume(0.0f);
+	}
+	else
+#endif
+	{
+		g_mumbleClient->SetOutputVolume(g_preferenceArray[PREF_VOICE_OUTPUT_VOLUME] * 0.1f);
+	}
 
 	float cameraFront[3];
 	float cameraTop[3];

code/components/nui-core/include/CefOverlay.h

@@ -159,6 +159,8 @@ namespace nui
 		fwEvent<> OnInitRenderer;
 
 		fwEvent<> OnRender;
+
+		fwEvent<bool&> QueryShouldMute;
 	};
 
 	void OVERLAY_DECL Initialize(nui::GameInterface* gi);

code/components/nui-core/include/NUIWindow.h

@@ -142,6 +142,8 @@ class
 private:
 	CefString m_initUrl;
 
+	bool m_isMuted = false;
+
 public:
 	~NUIWindow();
 

code/components/nui-core/src/NUIWindow.cpp

@@ -587,6 +587,29 @@ void NUIWindow::TouchMessage()
 
 void NUIWindow::UpdateFrame()
 {
+	if (m_client)
+	{
+		auto browser = ((NUIClient*)m_client.get())->GetBrowser();
+
+		if (browser)
+		{
+			// the CEF API has a 'is muted' getter but it doesn't work
+			bool shouldMute = false;
+			g_nuiGi->QueryShouldMute(shouldMute);
+
+			if (!m_isMuted && shouldMute)
+			{
+				browser->GetHost()->SetAudioMuted(true);
+				m_isMuted = true;
+			}
+			else if (m_isMuted && !shouldMute)
+			{
+				browser->GetHost()->SetAudioMuted(false);
+				m_isMuted = false;
+			}
+		}
+	}
+
 #ifndef IS_RDR3
 	if (GetPaintType() != NUIPaintTypePostRender)
 #endif