1 files changed, 114 insertions, 0 deletions

diff --git a/linden/indra/newview/llviewerjointmesh_sse.cpp b/linden/indra/newview/llviewerjointmesh_sse.cpp
new file mode 100644
index 0000000..95d621a
--- /dev/null
+++ b/linden/indra/newview/llviewerjointmesh_sse.cpp
@@ -0,0 +1,114 @@
+/** 
+ * @file llviewerjointmesh_sse.cpp
+ * @brief SSE vectorized joint skinning code, only used when video card does
+ * not support avatar vertex programs.
+ *
+ * *NOTE: Disabled on Windows builds. See llv4math.h for details.
+ *
+ * Copyright (c) 2007-2007, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ */
+
+//-----------------------------------------------------------------------------
+// Header Files
+//-----------------------------------------------------------------------------
+
+#include "llviewerprecompiledheaders.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"
+
+
+#if LL_VECTORIZE
+
+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)
+{
+        // This cannot be a file-level static because it will be initialized
+        // before main() using SSE code, which will crash on non-SSE processors.
+        static LLV4Matrix4      sJointMat[32];
+        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);
+}
+
+#endif