1 files changed, 16 insertions, 0 deletions

diff --git a/linden/indra/newview/llviewerjointmesh.h b/linden/indra/newview/llviewerjointmesh.h
index f016da6..b40daed 100644
--- a/linden/indra/newview/llviewerjointmesh.h
+++ b/linden/indra/newview/llviewerjointmesh.h
@@ -146,6 +146,22 @@ public:
 
         /*virtual*/ BOOL isAnimatable() { return FALSE; }
         void writeCAL3D(apr_file_t* fp, S32 material_num, LLCharacter* characterp);
+
+        // Avatar vertex skinning is a significant performance issue on computers
+        // with avatar vertex programs turned off (for example, most Macs).  We
+        // therefore have custom versions that use SIMD instructions.
+        //
+        // These functions require compiler options for SSE2, SSE, or neither, and
+        // hence are contained in separate individual .cpp files.  JC
+        static void updateGeometryOriginal(LLFace* face, LLPolyMesh* mesh);
+        // generic vector code, used for Altivec
+        static void updateGeometryVectorized(LLFace* face, LLPolyMesh* mesh);
+        static void updateGeometrySSE(LLFace* face, LLPolyMesh* mesh);
+        static void updateGeometrySSE2(LLFace* face, LLPolyMesh* mesh);
+
+        // Use a fuction pointer to indicate which version we are running.
+        static void (*sUpdateGeometryFunc)(LLFace* face, LLPolyMesh* mesh);
+
 private:
         // Allocate skin data
         BOOL allocateSkinData( U32 numSkinJoints );