211 lines
6.9 KiB
C++
211 lines
6.9 KiB
C++
/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2019, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the
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following conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------
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*/
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/** @file Defines a post processing step to split large meshes into submeshes
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*/
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#ifndef AI_SPLITLARGEMESHES_H_INC
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#define AI_SPLITLARGEMESHES_H_INC
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#include <vector>
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#include "BaseProcess.h"
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#include <assimp/mesh.h>
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#include <assimp/scene.h>
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class SplitLargeMeshesTest;
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namespace Assimp
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{
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class SplitLargeMeshesProcess_Triangle;
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class SplitLargeMeshesProcess_Vertex;
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// NOTE: If you change these limits, don't forget to change the
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// corresponding values in all Assimp ports
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// **********************************************************
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// Java: ConfigProperty.java,
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// ConfigProperty.DEFAULT_VERTEX_SPLIT_LIMIT
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// ConfigProperty.DEFAULT_TRIANGLE_SPLIT_LIMIT
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// **********************************************************
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// default limit for vertices
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#if (!defined AI_SLM_DEFAULT_MAX_VERTICES)
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# define AI_SLM_DEFAULT_MAX_VERTICES 1000000
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#endif
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// default limit for triangles
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#if (!defined AI_SLM_DEFAULT_MAX_TRIANGLES)
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# define AI_SLM_DEFAULT_MAX_TRIANGLES 1000000
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#endif
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// ---------------------------------------------------------------------------
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/** Post-processing filter to split large meshes into sub-meshes
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*
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* Applied BEFORE the JoinVertices-Step occurs.
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* Returns NON-UNIQUE vertices, splits by triangle number.
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*/
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class ASSIMP_API SplitLargeMeshesProcess_Triangle : public BaseProcess
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{
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friend class SplitLargeMeshesProcess_Vertex;
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public:
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SplitLargeMeshesProcess_Triangle();
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~SplitLargeMeshesProcess_Triangle();
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public:
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// -------------------------------------------------------------------
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/** Returns whether the processing step is present in the given flag.
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* @param pFlags The processing flags the importer was called with. A
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* bitwise combination of #aiPostProcessSteps.
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* @return true if the process is present in this flag fields,
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* false if not.
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*/
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bool IsActive( unsigned int pFlags) const;
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// -------------------------------------------------------------------
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/** Called prior to ExecuteOnScene().
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* The function is a request to the process to update its configuration
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* basing on the Importer's configuration property list.
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*/
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virtual void SetupProperties(const Importer* pImp);
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//! Set the split limit - needed for unit testing
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inline void SetLimit(unsigned int l)
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{LIMIT = l;}
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//! Get the split limit
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inline unsigned int GetLimit() const
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{return LIMIT;}
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public:
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// -------------------------------------------------------------------
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/** Executes the post processing step on the given imported data.
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* At the moment a process is not supposed to fail.
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* @param pScene The imported data to work at.
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*/
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void Execute( aiScene* pScene);
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// -------------------------------------------------------------------
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//! Apply the algorithm to a given mesh
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void SplitMesh (unsigned int a, aiMesh* pcMesh,
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std::vector<std::pair<aiMesh*, unsigned int> >& avList);
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// -------------------------------------------------------------------
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//! Update a node in the asset after a few of its meshes
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//! have been split
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static void UpdateNode(aiNode* pcNode,
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const std::vector<std::pair<aiMesh*, unsigned int> >& avList);
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public:
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//! Triangle limit
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unsigned int LIMIT;
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};
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// ---------------------------------------------------------------------------
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/** Post-processing filter to split large meshes into sub-meshes
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*
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* Applied AFTER the JoinVertices-Step occurs.
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* Returns UNIQUE vertices, splits by vertex number.
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*/
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class ASSIMP_API SplitLargeMeshesProcess_Vertex : public BaseProcess
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{
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public:
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SplitLargeMeshesProcess_Vertex();
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~SplitLargeMeshesProcess_Vertex();
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public:
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// -------------------------------------------------------------------
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/** Returns whether the processing step is present in the given flag field.
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* @param pFlags The processing flags the importer was called with. A bitwise
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* combination of #aiPostProcessSteps.
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* @return true if the process is present in this flag fields, false if not.
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*/
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bool IsActive( unsigned int pFlags) const;
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// -------------------------------------------------------------------
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/** Called prior to ExecuteOnScene().
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* The function is a request to the process to update its configuration
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* basing on the Importer's configuration property list.
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*/
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virtual void SetupProperties(const Importer* pImp);
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//! Set the split limit - needed for unit testing
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inline void SetLimit(unsigned int l)
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{LIMIT = l;}
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//! Get the split limit
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inline unsigned int GetLimit() const
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{return LIMIT;}
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public:
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// -------------------------------------------------------------------
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/** Executes the post processing step on the given imported data.
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* At the moment a process is not supposed to fail.
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* @param pScene The imported data to work at.
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*/
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void Execute( aiScene* pScene);
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// -------------------------------------------------------------------
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//! Apply the algorithm to a given mesh
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void SplitMesh (unsigned int a, aiMesh* pcMesh,
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std::vector<std::pair<aiMesh*, unsigned int> >& avList);
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// NOTE: Reuse SplitLargeMeshesProcess_Triangle::UpdateNode()
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public:
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//! Triangle limit
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unsigned int LIMIT;
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};
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} // end of namespace Assimp
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#endif // !!AI_SPLITLARGEMESHES_H_INC
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