OgreOptimisedUtil.h

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00001 /*
00002 -----------------------------------------------------------------------------
00003 This source file is part of OGRE
00004     (Object-oriented Graphics Rendering Engine)
00005 For the latest info, see http://www.ogre3d.org/
00006 
00007 Copyright (c) 2000-2006 Torus Knot Software Ltd
00008 Also see acknowledgements in Readme.html
00009 
00010 This program is free software; you can redistribute it and/or modify it under
00011 the terms of the GNU Lesser General Public License as published by the Free Software
00012 Foundation; either version 2 of the License, or (at your option) any later
00013 version.
00014 
00015 This program is distributed in the hope that it will be useful, but WITHOUT
00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
00018 
00019 You should have received a copy of the GNU Lesser General Public License along with
00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
00022 http://www.gnu.org/copyleft/lesser.txt.
00023 
00024 You may alternatively use this source under the terms of a specific version of
00025 the OGRE Unrestricted License provided you have obtained such a license from
00026 Torus Knot Software Ltd.
00027 -----------------------------------------------------------------------------
00028 */
00029 #ifndef __OptimisedUtil_H__
00030 #define __OptimisedUtil_H__
00031 
00032 #include "OgrePrerequisites.h"
00033 #include "OgreEdgeListBuilder.h"
00034 
00035 namespace Ogre {
00036 
00041     class _OgreExport OptimisedUtil
00042     {
00043     private:
00045         OptimisedUtil(const OptimisedUtil& rhs); /* do nothing, should not use */
00047         OptimisedUtil& operator=(const OptimisedUtil& rhs); /* do not use */
00048 
00049     protected:
00051         static OptimisedUtil* msImplementation;
00052 
00054         static OptimisedUtil* _detectImplementation(void);
00055 
00056     public:
00057         // Default constructor
00058         OptimisedUtil(void) {}
00059         // Destructor
00060         virtual ~OptimisedUtil() {}
00061 
00067         static OptimisedUtil* getImplementation(void) { return msImplementation; }
00068 
00093         virtual void softwareVertexSkinning(
00094             const float *srcPosPtr, float *destPosPtr,
00095             const float *srcNormPtr, float *destNormPtr,
00096             const float *blendWeightPtr, const unsigned char* blendIndexPtr,
00097             const Matrix4* const* blendMatrices,
00098             size_t srcPosStride, size_t destPosStride,
00099             size_t srcNormStride, size_t destNormStride,
00100             size_t blendWeightStride, size_t blendIndexStride,
00101             size_t numWeightsPerVertex,
00102             size_t numVertices) = 0;
00103 
00117         virtual void softwareVertexMorph(
00118             Real t,
00119             const float *srcPos1, const float *srcPos2,
00120             float *dstPos,
00121             size_t numVertices) = 0;
00122 
00132         virtual void concatenateAffineMatrices(
00133             const Matrix4& baseMatrix,
00134             const Matrix4* srcMatrices,
00135             Matrix4* dstMatrices,
00136             size_t numMatrices) = 0;
00137 
00149         virtual void calculateFaceNormals(
00150             const float *positions,
00151             const EdgeData::Triangle *triangles,
00152             Vector4 *faceNormals,
00153             size_t numTriangles) = 0;
00154 
00171         virtual void calculateLightFacing(
00172             const Vector4& lightPos,
00173             const Vector4* faceNormals,
00174             char* lightFacings,
00175             size_t numFaces) = 0;
00176 
00191         virtual void extrudeVertices(
00192             const Vector4& lightPos,
00193             Real extrudeDist,
00194             const float* srcPositions,
00195             float* destPositions,
00196             size_t numVertices) = 0;
00197     };
00198 
00203     template <class T>
00204     static FORCEINLINE T* rawOffsetPointer(T* ptr, ptrdiff_t offset)
00205     {
00206         return (T*)((char*)(ptr) + offset);
00207     }
00208 
00213     template <class T>
00214     static FORCEINLINE void advanceRawPointer(T*& ptr, ptrdiff_t offset)
00215     {
00216         ptr = rawOffsetPointer(ptr, offset);
00217     }
00218 
00219 }
00220 
00221 #endif  // __OptimisedUtil_H__

Copyright © 2008 Torus Knot Software Ltd
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Last modified Sun Sep 27 22:02:24 2009