From 4975bd03c12673778616e1cca1811bf906bb42a6 Mon Sep 17 00:00:00 2001
From: Rider Linden <rider@lindenlab.com>
Date: Wed, 16 May 2018 13:42:48 -0700
Subject: Splitting the blender up to support manual positioning as well as
 time.  Phase1

---
 indra/llinventory/llsettingsbase.cpp | 30 ++++++++++++++++++++++--------
 1 file changed, 22 insertions(+), 8 deletions(-)

(limited to 'indra/llinventory/llsettingsbase.cpp')

diff --git a/indra/llinventory/llsettingsbase.cpp b/indra/llinventory/llsettingsbase.cpp
index f2dfeaf154..daf42fc073 100644
--- a/indra/llinventory/llsettingsbase.cpp
+++ b/indra/llinventory/llsettingsbase.cpp
@@ -52,8 +52,6 @@ const std::string LLSettingsBase::SETTING_NAME("name");
 const std::string LLSettingsBase::SETTING_HASH("hash");
 const std::string LLSettingsBase::SETTING_TYPE("type");
 
-const F64Seconds LLSettingsBlender::DEFAULT_THRESHOLD(0.01);
-
 //=========================================================================
 LLSettingsBase::LLSettingsBase():
     mSettings(LLSD::emptyMap()),
@@ -535,21 +533,37 @@ bool LLSettingsBase::Validator::verifyIntegerRange(LLSD &value, LLSD range)
 }
 
 //=========================================================================
-void LLSettingsBlender::update(F64Seconds timedelta)
+void LLSettingsBlender::update(F64 blendf)
 {
-    mTimeSpent += timedelta;
 
-    if (mTimeSpent >= mSeconds)
+}
+
+F64 LLSettingsBlender::setPosition(F64 blendf)
+{
+    if (blendf >= 1.0)
     {
+        mTarget->replaceSettings(mFinal->getSettings());
         LLSettingsBlender::ptr_t hold = shared_from_this();   // prevents this from deleting too soon
         mOnFinished(shared_from_this());
-        return;
+        return 1.0;
     }
-
-    F64 blendf = fmod(mTimeSpent.value(), mSeconds.value()) / mSeconds.value();
+    blendf = llclamp(blendf, 0.0, 1.0);
 
     //_WARNS("LAPRAS") << "blending at " << (blendf * 100.0f) << "%" << LL_ENDL;
     mTarget->replaceSettings(mInitial->getSettings());
     mTarget->blend(mFinal, blendf);
+
+    return blendf;
 }
 
+//-------------------------------------------------------------------------
+void LLSettingsBlenderTimeDelta::update(F64 timedelta)
+{
+    mTimeSpent += F64Seconds(timedelta);
+
+    F64 blendf = fmod(mTimeSpent.value(), mBlendSpan.value()) / mBlendSpan.value();
+
+    // Note no clamp here.  
+
+    setPosition(blendf);
+}
-- 
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