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-/*
-Open Asset Import Library (ASSIMP)
-----------------------------------------------------------------------
-
-Copyright (c) 2006-2010, ASSIMP Development Team
-All rights reserved.
-
-Redistribution and use of this software in source and binary forms,
-with or without modification, are permitted provided that the
-following conditions are met:
-
-* Redistributions of source code must retain the above
- copyright notice, this list of conditions and the
- following disclaimer.
-
-* Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the
- following disclaimer in the documentation and/or other
- materials provided with the distribution.
-
-* Neither the name of the ASSIMP team, nor the names of its
- contributors may be used to endorse or promote products
- derived from this software without specific prior
- written permission of the ASSIMP Development Team.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-----------------------------------------------------------------------
-*/
-
-/** @file FindInstancesProcess.h
- * @brief Declares the aiProcess_FindInstances post-process step
- */
-#ifndef AI_FINDINSTANCES_H_INC
-#define AI_FINDINSTANCES_H_INC
-
-#include "BaseProcess.h"
-#include "ProcessHelper.h"
-
-class FindInstancesProcessTest;
-namespace Assimp {
-
-// -------------------------------------------------------------------------------
-/** @brief Get a pseudo(!)-hash representing a mesh.
- *
- * The hash is built from number of vertices, faces, primitive types,
- * .... but *not* from the real mesh data. It isn't absolutely unique.
- * @param in Input mesh
- * @return Hash.
- */
-inline uint64_t GetMeshHash(aiMesh* in)
-{
- ai_assert(NULL != in);
-
- // ... get an unique value representing the vertex format of the mesh
- const unsigned int fhash = GetMeshVFormatUnique(in);
-
- // and bake it with number of vertices/faces/bones/matidx/ptypes
- return ((uint64_t)fhash << 32u) | ((
- (in->mNumBones << 16u) ^ (in->mNumVertices) ^
- (in->mNumFaces<<4u) ^ (in->mMaterialIndex<<15) ^
- (in->mPrimitiveTypes<<28)) & 0xffffffff );
-}
-
-// -------------------------------------------------------------------------------
-/** @brief Perform a component-wise comparison of two arrays
- *
- * @param first First array
- * @param second Second aray
- * @param size Size of both arrays
- * @param e Epsilon
- * @return true if the arrays are identical
- */
-inline bool CompareArrays(const aiVector3D* first, const aiVector3D* second,
- unsigned int size, float e)
-{
- for (const aiVector3D* end = first+size; first != end; ++first,++second) {
- if ( (*first - *second).SquareLength() >= e)
- return false;
- }
- return true;
-}
-
-// and the same for colors ...
-inline bool CompareArrays(const aiColor4D* first, const aiColor4D* second,
- unsigned int size, float e)
-{
- for (const aiColor4D* end = first+size; first != end; ++first,++second) {
- if ( GetColorDifference(*first,*second) >= e)
- return false;
- }
- return true;
-}
-
-// ---------------------------------------------------------------------------
-/** @brief A post-processing steps to search for instanced meshes
-*/
-class ASSIMP_API FindInstancesProcess : public BaseProcess
-{
- friend class Importer;
- friend class ::FindInstancesProcessTest;
-
-protected:
- /** Constructor to be privately used by Importer */
- FindInstancesProcess();
-
- /** Destructor, private as well */
- ~FindInstancesProcess();
-
-public:
- // -------------------------------------------------------------------
- // Check whether step is active in given flags combination
- bool IsActive( unsigned int pFlags) const;
-
- // -------------------------------------------------------------------
- // Execute step on a given scene
- void Execute( aiScene* pScene);
-
- // -------------------------------------------------------------------
- // Setup properties prior to executing the process
- void SetupProperties(const Importer* pImp);
-
-private:
-
- bool configSpeedFlag;
-
-}; // ! end class FindInstancesProcess
-} // ! end namespace Assimp
-
-#endif // !! AI_FINDINSTANCES_H_INC