# 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 #include <cstddef>
    00034
    00035 namespace Ogre {
    00036
    00047     class _OgreExport OptimisedUtil
    00048     {
    00049     private:
    00051         OptimisedUtil(const OptimisedUtil& rhs); /* do nothing, should not use */
    00053         OptimisedUtil& operator=(const OptimisedUtil& rhs); /* do not use */
    00054
    00055     protected:
    00057         static OptimisedUtil* msImplementation;
    00058
    00060         static OptimisedUtil* _detectImplementation(void);
    00061
    00062     public:
    00063         // Default constructor
    00064         OptimisedUtil(void) {}
    00065         // Destructor
    00066         virtual ~OptimisedUtil() {}
    00067
    00073         static OptimisedUtil* getImplementation(void) { return msImplementation; }
    00074
    00099         virtual void softwareVertexSkinning(
    00100             const float *srcPosPtr, float *destPosPtr,
    00101             const float *srcNormPtr, float *destNormPtr,
    00102             const float *blendWeightPtr, const unsigned char* blendIndexPtr,
    00103             const Matrix4* const* blendMatrices,
    00104             size_t srcPosStride, size_t destPosStride,
    00105             size_t srcNormStride, size_t destNormStride,
    00106             size_t blendWeightStride, size_t blendIndexStride,
    00107             size_t numWeightsPerVertex,
    00108             size_t numVertices) = 0;
    00109
    00123         virtual void softwareVertexMorph(
    00124             Real t,
    00125             const float *srcPos1, const float *srcPos2,
    00126             float *dstPos,
    00127             size_t numVertices) = 0;
    00128
    00138         virtual void concatenateAffineMatrices(
    00139             const Matrix4& baseMatrix,
    00140             const Matrix4* srcMatrices,
    00141             Matrix4* dstMatrices,
    00142             size_t numMatrices) = 0;
    00143
    00155         virtual void calculateFaceNormals(
    00156             const float *positions,
    00157             const EdgeData::Triangle *triangles,
    00158             Vector4 *faceNormals,
    00159             size_t numTriangles) = 0;
    00160
    00177         virtual void calculateLightFacing(
    00178             const Vector4& lightPos,
    00179             const Vector4* faceNormals,
    00180             char* lightFacings,
    00181             size_t numFaces) = 0;
    00182
    00197         virtual void extrudeVertices(
    00198             const Vector4& lightPos,
    00199             Real extrudeDist,
    00200             const float* srcPositions,
    00201             float* destPositions,
    00202             size_t numVertices) = 0;
    00203     };
    00204
    00209     template <class T>
    00210     static FORCEINLINE T* rawOffsetPointer(T* ptr, ptrdiff_t offset)
    00211     {
    00212         return (T*)((char*)(ptr) + offset);
    00213     }
    00214
    00219     template <class T>
    00220     static FORCEINLINE void advanceRawPointer(T*& ptr, ptrdiff_t offset)
    00221     {
    00222         ptr = rawOffsetPointer(ptr, offset);
    00223     }
    00227 }
    00228
    00229 #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 Sun May 8 2011 20:28:08