DRTVWR-476: Merge branch 'master' of lindenlab/viewer into DRTVWR-476-boost-1.72

1 files changed, 14 insertions, 5 deletions

diff --git a/indra/llprimitive/llprimitive.h b/indra/llprimitive/llprimitive.h
index 6fd433c337..b1f8112223 100644
--- a/indra/llprimitive/llprimitive.h
+++ b/indra/llprimitive/llprimitive.h
@@ -131,8 +131,8 @@ extern const F32 LIGHT_MAX_CUTOFF;
 
 class LLLightParams : public LLNetworkData
 {
-protected:
-	LLColor4 mColor; // alpha = intensity
+private:
+	LLColor4 mColor; // linear color (not gamma corrected), alpha = intensity
 	F32 mRadius;
 	F32 mFalloff;
 	F32 mCutoff;
@@ -149,13 +149,22 @@ public:
 	operator LLSD() const { return asLLSD(); }
 	bool fromLLSD(LLSD& sd);
 
-	
-	void setColor(const LLColor4& color)	{ mColor = color; mColor.clamp(); }
+    // set the color by gamma corrected color value
+    //  color - gamma corrected color value (directly taken from an on-screen color swatch)
+    void setSRGBColor(const LLColor4& color) { setLinearColor(linearColor4(color)); }
+
+    // set the color by linear color value
+    //  color - linear color value (value as it appears in shaders)
+    void setLinearColor(const LLColor4& color)	{ mColor = color; mColor.clamp(); }
 	void setRadius(F32 radius)				{ mRadius = llclamp(radius, LIGHT_MIN_RADIUS, LIGHT_MAX_RADIUS); }
 	void setFalloff(F32 falloff)			{ mFalloff = llclamp(falloff, LIGHT_MIN_FALLOFF, LIGHT_MAX_FALLOFF); }
 	void setCutoff(F32 cutoff)				{ mCutoff = llclamp(cutoff, LIGHT_MIN_CUTOFF, LIGHT_MAX_CUTOFF); }
 
-	LLColor4 getColor() const				{ return mColor; }
+    // get the linear space color of this light.  This value can be fed directly to shaders
+    LLColor4 getLinearColor() const				{ return mColor; }
+    // get the sRGB (gamma corrected) color of this light, this is the value that should be displayed in the UI
+    LLColor4 getSRGBColor() const			{ return srgbColor4(mColor); }
+    
 	F32 getRadius() const					{ return mRadius; }
 	F32 getFalloff() const					{ return mFalloff; }
 	F32 getCutoff() const					{ return mCutoff; }