# 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) 2000-2009 Torus Knot Software Ltd
    00008
    00009 Permission is hereby granted, free of charge, to any person obtaining a copy
    00010 of this software and associated documentation files (the "Software"), to deal
    00011 in the Software without restriction, including without limitation the rights
    00012 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    00013 copies of the Software, and to permit persons to whom the Software is
    00014 furnished to do so, subject to the following conditions:
    00015
    00016 The above copyright notice and this permission notice shall be included in
    00017 all copies or substantial portions of the Software.
    00018
    00019 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    00020 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00021 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    00022 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00023 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    00024 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    00025 THE SOFTWARE.
    00026 -----------------------------------------------------------------------------
    00027 */
    00028 #ifndef __OptimisedUtil_H__
    00029 #define __OptimisedUtil_H__
    00030
    00031 #include "OgrePrerequisites.h"
    00032 #include "OgreEdgeListBuilder.h"
    00033
    00034 namespace Ogre {
    00035
    00046     class _OgreExport OptimisedUtil
    00047     {
    00048     private:
    00050         OptimisedUtil(const OptimisedUtil& rhs); /* do nothing, should not use */
    00052         OptimisedUtil& operator=(const OptimisedUtil& rhs); /* do not use */
    00053
    00054     protected:
    00056         static OptimisedUtil* msImplementation;
    00057
    00059         static OptimisedUtil* _detectImplementation(void);
    00060
    00061     public:
    00062         // Default constructor
    00063         OptimisedUtil(void) {}
    00064         // Destructor
    00065         virtual ~OptimisedUtil() {}
    00066
    00072         static OptimisedUtil* getImplementation(void) { return msImplementation; }
    00073
    00098         virtual void softwareVertexSkinning(
    00099             const float *srcPosPtr, float *destPosPtr,
    00100             const float *srcNormPtr, float *destNormPtr,
    00101             const float *blendWeightPtr, const unsigned char* blendIndexPtr,
    00102             const Matrix4* const* blendMatrices,
    00103             size_t srcPosStride, size_t destPosStride,
    00104             size_t srcNormStride, size_t destNormStride,
    00105             size_t blendWeightStride, size_t blendIndexStride,
    00106             size_t numWeightsPerVertex,
    00107             size_t numVertices) = 0;
    00108
    00122         virtual void softwareVertexMorph(
    00123             Real t,
    00124             const float *srcPos1, const float *srcPos2,
    00125             float *dstPos,
    00126             size_t numVertices) = 0;
    00127
    00137         virtual void concatenateAffineMatrices(
    00138             const Matrix4& baseMatrix,
    00139             const Matrix4* srcMatrices,
    00140             Matrix4* dstMatrices,
    00141             size_t numMatrices) = 0;
    00142
    00154         virtual void calculateFaceNormals(
    00155             const float *positions,
    00156             const EdgeData::Triangle *triangles,
    00157             Vector4 *faceNormals,
    00158             size_t numTriangles) = 0;
    00159
    00176         virtual void calculateLightFacing(
    00177             const Vector4& lightPos,
    00178             const Vector4* faceNormals,
    00179             char* lightFacings,
    00180             size_t numFaces) = 0;
    00181
    00196         virtual void extrudeVertices(
    00197             const Vector4& lightPos,
    00198             Real extrudeDist,
    00199             const float* srcPositions,
    00200             float* destPositions,
    00201             size_t numVertices) = 0;
    00202     };
    00203
    00208     template <class T>
    00209     static FORCEINLINE T* rawOffsetPointer(T* ptr, ptrdiff_t offset)
    00210     {
    00211         return (T*)((char*)(ptr) + offset);
    00212     }
    00213
    00218     template <class T>
    00219     static FORCEINLINE void advanceRawPointer(T*& ptr, ptrdiff_t offset)
    00220     {
    00221         ptr = rawOffsetPointer(ptr, offset);
    00222     }
    00226 }
    00227
    00228 #endif  // __OptimisedUtil_H__

Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Wed Nov 3 2010 19:24:52