From 607f34699301af95610ce4a0d72750e61b778a0e Mon Sep 17 00:00:00 2001
From: andreykproductengine <andreykproductengine@lindenlab.com>
Date: Mon, 7 Oct 2019 20:37:07 +0300
Subject: SL-9116 Implemented sound cut-off for llSetSoundRadius

---
 indra/newview/llaudiosourcevo.cpp | 98 +++++++++++++++++++++++++++++++--------
 1 file changed, 79 insertions(+), 19 deletions(-)

(limited to 'indra/newview/llaudiosourcevo.cpp')

diff --git a/indra/newview/llaudiosourcevo.cpp b/indra/newview/llaudiosourcevo.cpp
index b37aba6c15..4b6c855bde 100644
--- a/indra/newview/llaudiosourcevo.cpp
+++ b/indra/newview/llaudiosourcevo.cpp
@@ -29,8 +29,10 @@
 
 #include "llaudiosourcevo.h"
 
+#include "llagent.h"
 #include "llagentcamera.h"
 #include "llmutelist.h"
+#include "llviewercontrol.h"
 #include "llviewerparcelmgr.h"
 
 LLAudioSourceVO::LLAudioSourceVO(const LLUUID &sound_id, const LLUUID& owner_id, const F32 gain, LLViewerObject *objectp)
@@ -54,6 +56,79 @@ void LLAudioSourceVO::setGain(const F32 gain)
 	mGain = llclamp(gain, 0.f, 1.f);
 }
 
+void LLAudioSourceVO::checkCutOffRadius()
+{
+    if (mSourceMuted // already muted by something, will be recalculated on update()
+        || !mObjectp)
+    {
+        return;
+    }
+
+    F32 cutoff = mObjectp->getSoundCutOffRadius();
+    if (cutoff < 0.1f)
+    {
+        // consider cutoff below 0.1m as off (to avoid near zero comparison)
+        return;
+    }
+
+    LLVector3d pos_global = getPosGlobal();
+    if (!isInCutOffRadius(pos_global, cutoff))
+    {
+        mSourceMuted = true;
+    }
+}
+
+LLVector3d LLAudioSourceVO::getPosGlobal() const
+{
+    if (mObjectp->isAttachment())
+    {
+        LLViewerObject* parent = mObjectp;
+        while (parent && !parent->isAvatar())
+        {
+            parent = (LLViewerObject*)parent->getParent();
+        }
+        if (parent)
+        {
+            return parent->getPositionGlobal();
+        }
+    }
+    else
+    {
+        return mObjectp->getPositionGlobal();
+    }
+    return LLVector3d();
+}
+
+bool LLAudioSourceVO::isInCutOffRadius(const LLVector3d pos_global, const F32 cutoff) const
+{
+    static LLCachedControl<S32> ear_mode(gSavedSettings, "VoiceEarLocation", 0);
+
+    LLVector3d pos_ear;
+
+    switch (ear_mode())
+    {
+        case 0: // camera
+            pos_ear = gAgentCamera.getCameraPositionGlobal();
+            break;
+
+        case 1: // avatar
+        case 2:
+            // voice support 'mixed' in '2' case with agent's position and camera's rotations
+            // but it is not defined in settings and uses camera as default
+            pos_ear = gAgent.getPositionGlobal();
+            break;
+
+        default:
+            pos_ear = gAgentCamera.getCameraPositionGlobal();
+            break;
+    }
+    LLVector3d to_vec = pos_global - pos_ear;
+
+    F32 dist = (F32)to_vec.magVec();
+
+    return dist < cutoff;
+}
+
 void LLAudioSourceVO::updateMute()
 {
 	if (!mObjectp || mObjectp->isDead())
@@ -63,26 +138,11 @@ void LLAudioSourceVO::updateMute()
 	}
 
 	bool mute = false;
-	LLVector3d pos_global;
-
-	if (mObjectp->isAttachment())
-	{
-		LLViewerObject* parent = mObjectp;
-		while (parent && !parent->isAvatar())
-		{
-			parent = (LLViewerObject*)parent->getParent();
-		}
-		if (parent)
-		{
-			pos_global = parent->getPositionGlobal();
-		}
-	}
-	else
-	{
-		pos_global = mObjectp->getPositionGlobal();
-	}
+	LLVector3d pos_global = getPosGlobal();
 
-	if (!LLViewerParcelMgr::getInstance()->canHearSound(pos_global))
+	F32 cutoff = mObjectp->getSoundCutOffRadius();
+	if ((cutoff > 0.1f && !isInCutOffRadius(pos_global, cutoff)) // consider cutoff below 0.1m as off
+		|| !LLViewerParcelMgr::getInstance()->canHearSound(pos_global))
 	{
 		mute = true;
 	}
-- 
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