MAINT-775 Particle vertex buffer management optimizations

1 files changed, 10 insertions, 0 deletions

diff --git a/indra/llcommon/llstrider.h b/indra/llcommon/llstrider.h
index f4c43bac61..ed9284d2c5 100644
--- a/indra/llcommon/llstrider.h
+++ b/indra/llcommon/llstrider.h
@@ -44,6 +44,15 @@ public:
 	const LLStrider<Object>& operator =  (Object *first)    { mObjectp = first; return *this;}
 	void setStride (S32 skipBytes)	{ mSkip = (skipBytes ? skipBytes : sizeof(Object));}
 
+	LLStrider<Object> operator+(const S32& index) 
+	{
+		LLStrider<Object> ret;
+		ret.mBytep = mBytep + mSkip*index;
+		ret.mSkip = mSkip;
+
+		return ret;
+	}
+
 	void skip(const U32 index)     { mBytep += mSkip*index;}
 	U32 getSkip() const			   { return mSkip; }
 	Object* get()                  { return mObjectp; }
@@ -51,6 +60,7 @@ public:
 	Object& operator *()           { return *mObjectp; }
 	Object* operator ++(int)       { Object* old = mObjectp; mBytep += mSkip; return old; }
 	Object* operator +=(int i)     { mBytep += mSkip*i; return mObjectp; }
+
 	Object& operator[](U32 index)  { return *(Object*)(mBytep + (mSkip * index)); }
 };