merge heads. whew.

1 files changed, 48 insertions, 17 deletions

diff --git a/indra/newview/llface.cpp b/indra/newview/llface.cpp
index e0e7fb4647..defd882fe4 100644
--- a/indra/newview/llface.cpp
+++ b/indra/newview/llface.cpp
@@ -856,6 +856,26 @@ void LLFace::updateRebuildFlags()
 	}
 }
 
+
+bool LLFace::canRenderAsMask()
+{
+	const LLTextureEntry* te = getTextureEntry();
+	return (
+		(
+		 (LLPipeline::sRenderDeferred && LLPipeline::sAutoMaskAlphaDeferred) ||
+		 
+		 (!LLPipeline::sRenderDeferred && LLPipeline::sAutoMaskAlphaNonDeferred)		 
+		 ) // do we want masks at all?
+		&&
+		(te->getColor().mV[3] == 1.0f) && // can't treat as mask if we have face alpha
+		!(LLPipeline::sRenderDeferred && te->getFullbright()) && // hack: alpha masking renders fullbright faces invisible in deferred rendering mode, need to figure out why - for now, avoid
+		(te->getGlow() == 0.f) && // glowing masks are hard to implement - don't mask
+
+		getTexture()->getIsAlphaMask() // texture actually qualifies for masking (lazily recalculated but expensive)
+		);
+}
+
+
 static LLFastTimer::DeclareTimer FTM_FACE_GET_GEOM("Face Geom");
 
 BOOL LLFace::getGeometryVolume(const LLVolume& volume,
@@ -1386,24 +1406,13 @@ F32 LLFace::getTextureVirtualSize()
 		face_area =  mPixelArea / llclamp(texel_area, 0.015625f, 128.f);
 	}
 
-	if(face_area > LLViewerTexture::sMaxSmallImageSize)
+	face_area = LLFace::adjustPixelArea(mImportanceToCamera, face_area) ;
+	if(face_area > LLViewerTexture::sMinLargeImageSize) //if is large image, shrink face_area by considering the partial overlapping.
 	{
-		if(mImportanceToCamera < LEAST_IMPORTANCE) //if the face is not important, do not load hi-res.
-		{
-			static const F32 MAX_LEAST_IMPORTANCE_IMAGE_SIZE = 128.0f * 128.0f ;
-			face_area = llmin(face_area * 0.5f, MAX_LEAST_IMPORTANCE_IMAGE_SIZE) ;
-		}
-		else if(face_area > LLViewerTexture::sMinLargeImageSize) //if is large image, shrink face_area by considering the partial overlapping.
-		{
-			if(mImportanceToCamera < LEAST_IMPORTANCE_FOR_LARGE_IMAGE)//if the face is not important, do not load hi-res.
-			{
-				face_area = LLViewerTexture::sMinLargeImageSize ;
-			}	
-			else if(mTexture.notNull() && mTexture->isLargeImage())
-			{		
-				face_area *= adjustPartialOverlapPixelArea(cos_angle_to_view_dir, radius );
-			}			
-		}
+		if(mImportanceToCamera > LEAST_IMPORTANCE_FOR_LARGE_IMAGE && mTexture.notNull() && mTexture->isLargeImage())
+		{		
+			face_area *= adjustPartialOverlapPixelArea(cos_angle_to_view_dir, radius );
+		}	
 	}
 
 	setVirtualSize(face_area) ;
@@ -1530,6 +1539,28 @@ F32 LLFace::calcImportanceToCamera(F32 cos_angle_to_view_dir, F32 dist)
 	return importance ;
 }
 
+//static 
+F32 LLFace::adjustPixelArea(F32 importance, F32 pixel_area)
+{
+	if(pixel_area > LLViewerTexture::sMaxSmallImageSize)
+	{
+		if(importance < LEAST_IMPORTANCE) //if the face is not important, do not load hi-res.
+		{
+			static const F32 MAX_LEAST_IMPORTANCE_IMAGE_SIZE = 128.0f * 128.0f ;
+			pixel_area = llmin(pixel_area * 0.5f, MAX_LEAST_IMPORTANCE_IMAGE_SIZE) ;
+		}
+		else if(pixel_area > LLViewerTexture::sMinLargeImageSize) //if is large image, shrink face_area by considering the partial overlapping.
+		{
+			if(importance < LEAST_IMPORTANCE_FOR_LARGE_IMAGE)//if the face is not important, do not load hi-res.
+			{
+				pixel_area = LLViewerTexture::sMinLargeImageSize ;
+			}				
+		}
+	}
+
+	return pixel_area ;
+}
+
 BOOL LLFace::verify(const U32* indices_array) const
 {
 	BOOL ok = TRUE;