| /* |
| Open Asset Import Library (assimp) |
| ---------------------------------------------------------------------- |
| |
| Copyright (c) 2006-2017, assimp 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 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 |
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| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| |
| ---------------------------------------------------------------------- |
| */ |
| |
| /** @file Defines a post processing step to split large meshes into submeshes |
| */ |
| #ifndef AI_SPLITLARGEMESHES_H_INC |
| #define AI_SPLITLARGEMESHES_H_INC |
| |
| #include <vector> |
| #include "BaseProcess.h" |
| |
| #include <assimp/mesh.h> |
| #include <assimp/scene.h> |
| |
| class SplitLargeMeshesTest; |
| |
| namespace Assimp |
| { |
| |
| class SplitLargeMeshesProcess_Triangle; |
| class SplitLargeMeshesProcess_Vertex; |
| |
| // NOTE: If you change these limits, don't forget to change the |
| // corresponding values in all Assimp ports |
| |
| // ********************************************************** |
| // Java: ConfigProperty.java, |
| // ConfigProperty.DEFAULT_VERTEX_SPLIT_LIMIT |
| // ConfigProperty.DEFAULT_TRIANGLE_SPLIT_LIMIT |
| // ********************************************************** |
| |
| // default limit for vertices |
| #if (!defined AI_SLM_DEFAULT_MAX_VERTICES) |
| # define AI_SLM_DEFAULT_MAX_VERTICES 1000000 |
| #endif |
| |
| // default limit for triangles |
| #if (!defined AI_SLM_DEFAULT_MAX_TRIANGLES) |
| # define AI_SLM_DEFAULT_MAX_TRIANGLES 1000000 |
| #endif |
| |
| // --------------------------------------------------------------------------- |
| /** Post-processing filter to split large meshes into sub-meshes |
| * |
| * Applied BEFORE the JoinVertices-Step occurs. |
| * Returns NON-UNIQUE vertices, splits by triangle number. |
| */ |
| class ASSIMP_API SplitLargeMeshesProcess_Triangle : public BaseProcess |
| { |
| friend class SplitLargeMeshesProcess_Vertex; |
| |
| public: |
| |
| SplitLargeMeshesProcess_Triangle(); |
| ~SplitLargeMeshesProcess_Triangle(); |
| |
| public: |
| // ------------------------------------------------------------------- |
| /** Returns whether the processing step is present in the given flag. |
| * @param pFlags The processing flags the importer was called with. A |
| * bitwise combination of #aiPostProcessSteps. |
| * @return true if the process is present in this flag fields, |
| * false if not. |
| */ |
| bool IsActive( unsigned int pFlags) const; |
| |
| |
| // ------------------------------------------------------------------- |
| /** Called prior to ExecuteOnScene(). |
| * The function is a request to the process to update its configuration |
| * basing on the Importer's configuration property list. |
| */ |
| virtual void SetupProperties(const Importer* pImp); |
| |
| |
| //! Set the split limit - needed for unit testing |
| inline void SetLimit(unsigned int l) |
| {LIMIT = l;} |
| |
| //! Get the split limit |
| inline unsigned int GetLimit() const |
| {return LIMIT;} |
| |
| public: |
| |
| // ------------------------------------------------------------------- |
| /** Executes the post processing step on the given imported data. |
| * At the moment a process is not supposed to fail. |
| * @param pScene The imported data to work at. |
| */ |
| void Execute( aiScene* pScene); |
| |
| // ------------------------------------------------------------------- |
| //! Apply the algorithm to a given mesh |
| void SplitMesh (unsigned int a, aiMesh* pcMesh, |
| std::vector<std::pair<aiMesh*, unsigned int> >& avList); |
| |
| // ------------------------------------------------------------------- |
| //! Update a node in the asset after a few of its meshes |
| //! have been split |
| static void UpdateNode(aiNode* pcNode, |
| const std::vector<std::pair<aiMesh*, unsigned int> >& avList); |
| |
| public: |
| //! Triangle limit |
| unsigned int LIMIT; |
| }; |
| |
| |
| // --------------------------------------------------------------------------- |
| /** Post-processing filter to split large meshes into sub-meshes |
| * |
| * Applied AFTER the JoinVertices-Step occurs. |
| * Returns UNIQUE vertices, splits by vertex number. |
| */ |
| class ASSIMP_API SplitLargeMeshesProcess_Vertex : public BaseProcess |
| { |
| public: |
| |
| SplitLargeMeshesProcess_Vertex(); |
| ~SplitLargeMeshesProcess_Vertex(); |
| |
| public: |
| // ------------------------------------------------------------------- |
| /** Returns whether the processing step is present in the given flag field. |
| * @param pFlags The processing flags the importer was called with. A bitwise |
| * combination of #aiPostProcessSteps. |
| * @return true if the process is present in this flag fields, false if not. |
| */ |
| bool IsActive( unsigned int pFlags) const; |
| |
| // ------------------------------------------------------------------- |
| /** Called prior to ExecuteOnScene(). |
| * The function is a request to the process to update its configuration |
| * basing on the Importer's configuration property list. |
| */ |
| virtual void SetupProperties(const Importer* pImp); |
| |
| |
| //! Set the split limit - needed for unit testing |
| inline void SetLimit(unsigned int l) |
| {LIMIT = l;} |
| |
| //! Get the split limit |
| inline unsigned int GetLimit() const |
| {return LIMIT;} |
| |
| public: |
| |
| // ------------------------------------------------------------------- |
| /** Executes the post processing step on the given imported data. |
| * At the moment a process is not supposed to fail. |
| * @param pScene The imported data to work at. |
| */ |
| void Execute( aiScene* pScene); |
| |
| // ------------------------------------------------------------------- |
| //! Apply the algorithm to a given mesh |
| void SplitMesh (unsigned int a, aiMesh* pcMesh, |
| std::vector<std::pair<aiMesh*, unsigned int> >& avList); |
| |
| // NOTE: Reuse SplitLargeMeshesProcess_Triangle::UpdateNode() |
| |
| public: |
| //! Triangle limit |
| unsigned int LIMIT; |
| }; |
| |
| } // end of namespace Assimp |
| |
| #endif // !!AI_SPLITLARGEMESHES_H_INC |