1 files changed, 94 insertions, 0 deletions
diff --git a/indra/newview/llviewerjointmesh_sse.cpp b/indra/newview/llviewerjointmesh_sse.cpp
new file mode 100644
index 0000000000..c4f8ff4fa8
--- /dev/null
+++ b/indra/newview/llviewerjointmesh_sse.cpp
@@ -0,0 +1,94 @@
+/** 
+ * @file llviewerjointmesh.cpp
+ * @brief LLV4 class implementation with LLViewerJointMesh class
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+//-----------------------------------------------------------------------------
+// Header Files
+//-----------------------------------------------------------------------------
+
+// Do not use precompiled headers, because we need to build this file with
+// SSE support, but not the precompiled header file. JC
+#include "linden_common.h"
+
+#include "llviewerjointmesh.h"
+
+// project includes
+#include "llface.h"
+#include "llpolymesh.h"
+
+// library includes
+#include "lldarray.h"
+#include "llv4math.h"		// for LL_VECTORIZE
+#include "llv4matrix3.h"
+#include "llv4matrix4.h"
+#include "v3math.h"
+
+// *NOTE: SSE must be enabled for this module
+
+#if LL_VECTORIZE
+
+static LLV4Matrix4	sJointMat[32];
+
+inline void matrix_translate(LLV4Matrix4& m, const LLMatrix4* w, const LLVector3& j)
+{
+	m.mV[VX] = _mm_loadu_ps(w->mMatrix[VX]);
+	m.mV[VY] = _mm_loadu_ps(w->mMatrix[VY]);
+	m.mV[VZ] = _mm_loadu_ps(w->mMatrix[VZ]);
+	m.mV[VW] = _mm_loadu_ps(w->mMatrix[VW]);
+	m.mV[VW] = _mm_add_ps(m.mV[VW], _mm_mul_ps(_mm_set1_ps(j.mV[VX]), m.mV[VX])); // ( ax * vx ) + vw
+	m.mV[VW] = _mm_add_ps(m.mV[VW], _mm_mul_ps(_mm_set1_ps(j.mV[VY]), m.mV[VY]));
+	m.mV[VW] = _mm_add_ps(m.mV[VW], _mm_mul_ps(_mm_set1_ps(j.mV[VZ]), m.mV[VZ]));
+}
+
+// static
+void LLViewerJointMesh::updateGeometrySSE(LLFace *face, LLPolyMesh *mesh)
+{
+	LLDynamicArray<LLJointRenderData*>& joint_data = mesh->getReferenceMesh()->mJointRenderData;
+
+	//upload joint pivots/matrices
+	for(S32 j = 0, jend = joint_data.count(); j < jend ; ++j )
+	{
+		matrix_translate(sJointMat[j], joint_data[j]->mWorldMatrix,
+			joint_data[j]->mSkinJoint ?
+				joint_data[j]->mSkinJoint->mRootToJointSkinOffset
+				: joint_data[j+1]->mSkinJoint->mRootToParentJointSkinOffset);
+	}
+
+	F32					weight		= F32_MAX;
+	LLV4Matrix4			blend_mat;
+
+	LLStrider<LLVector3> o_vertices;
+	LLStrider<LLVector3> o_normals;
+
+	LLVertexBuffer *buffer = face->mVertexBuffer;
+	buffer->getVertexStrider(o_vertices,  mesh->mFaceVertexOffset);
+	buffer->getNormalStrider(o_normals,   mesh->mFaceVertexOffset);
+
+	const F32*			weights			= mesh->getWeights();
+	const LLVector3*	coords			= mesh->getCoords();
+	const LLVector3*	normals			= mesh->getNormals();
+	for (U32 index = 0, index_end = mesh->getNumVertices(); index < index_end; ++index)
+	{
+		if( weight != weights[index])
+		{
+			S32 joint = llfloor(weight = weights[index]);
+			blend_mat.lerp(sJointMat[joint], sJointMat[joint+1], weight - joint);
+		}
+		blend_mat.multiply(coords[index], o_vertices[index]);
+		((LLV4Matrix3)blend_mat).multiply(normals[index], o_normals[index]);
+	}
+}
+
+#else
+
+void LLViewerJointMesh::updateGeometrySSE(LLFace *face, LLPolyMesh *mesh)
+{
+	LLViewerJointMesh::updateGeometryVectorized(face, mesh);
+	return;
+}
+
+#endif