1 files changed, 26 insertions, 3 deletions
diff --git a/indra/newview/llskinningutil.h b/indra/newview/llskinningutil.h
index ccc501adc0..efe7c85997 100644
--- a/indra/newview/llskinningutil.h
+++ b/indra/newview/llskinningutil.h
@@ -27,21 +27,44 @@
 #ifndef LLSKINNINGUTIL_H
 #define LLSKINNINGUTIL_H
 
+#include "v2math.h"
+#include "v4math.h"
+#include "llvector4a.h"
+#include "llmatrix4a.h"
+
 class LLVOAvatar;
 class LLMeshSkinInfo;
-class LLMatrix4a;
 class LLVolumeFace;
+class LLJointRiggingInfoTab;
 
 namespace LLSkinningUtil
 {
-    void initClass();
-    U32 getMaxJointCount();
+    S32 getMaxJointCount();
     U32 getMeshJointCount(const LLMeshSkinInfo *skin);
     void scrubInvalidJoints(LLVOAvatar *avatar, LLMeshSkinInfo* skin);
     void initSkinningMatrixPalette(LLMatrix4* mat, S32 count, const LLMeshSkinInfo* skin, LLVOAvatar *avatar);
     void checkSkinWeights(LLVector4a* weights, U32 num_vertices, const LLMeshSkinInfo* skin);
     void scrubSkinWeights(LLVector4a* weights, U32 num_vertices, const LLMeshSkinInfo* skin);
     void getPerVertexSkinMatrix(F32* weights, LLMatrix4a* mat, bool handle_bad_scale, LLMatrix4a& final_mat, U32 max_joints);
+
+    LL_FORCE_INLINE void getPerVertexSkinMatrixWithIndices(
+        F32*        weights,
+        U8*         idx,
+        LLMatrix4a* mat,
+        LLMatrix4a& final_mat,
+        LLMatrix4a* src)
+    {    
+        final_mat.clear();
+        src[0].setMul(mat[idx[0]], weights[0]);
+        src[1].setMul(mat[idx[1]], weights[1]);
+        final_mat.add(src[0]);
+        final_mat.add(src[1]);
+        src[2].setMul(mat[idx[2]], weights[2]);        
+        src[3].setMul(mat[idx[3]], weights[3]);
+        final_mat.add(src[2]);
+        final_mat.add(src[3]);
+    }
+
     void initJointNums(LLMeshSkinInfo* skin, LLVOAvatar *avatar);
     void updateRiggingInfo(const LLMeshSkinInfo* skin, LLVOAvatar *avatar, LLVolumeFace& vol_face);
 	LLQuaternion getUnscaledQuaternion(const LLMatrix4& mat4);