1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/libs/assimp/SplitLargeMeshes.h	Sat Feb 01 19:58:19 2014 +0200
     1.3 @@ -0,0 +1,207 @@
     1.4 +/*
     1.5 +Open Asset Import Library (assimp)
     1.6 +----------------------------------------------------------------------
     1.7 +
     1.8 +Copyright (c) 2006-2012, assimp team
     1.9 +All rights reserved.
    1.10 +
    1.11 +Redistribution and use of this software in source and binary forms, 
    1.12 +with or without modification, are permitted provided that the 
    1.13 +following conditions are met:
    1.14 +
    1.15 +* Redistributions of source code must retain the above
    1.16 +  copyright notice, this list of conditions and the
    1.17 +  following disclaimer.
    1.18 +
    1.19 +* Redistributions in binary form must reproduce the above
    1.20 +  copyright notice, this list of conditions and the
    1.21 +  following disclaimer in the documentation and/or other
    1.22 +  materials provided with the distribution.
    1.23 +
    1.24 +* Neither the name of the assimp team, nor the names of its
    1.25 +  contributors may be used to endorse or promote products
    1.26 +  derived from this software without specific prior
    1.27 +  written permission of the assimp team.
    1.28 +
    1.29 +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
    1.30 +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
    1.31 +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    1.32 +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
    1.33 +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    1.34 +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
    1.35 +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    1.36 +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
    1.37 +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
    1.38 +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
    1.39 +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    1.40 +
    1.41 +----------------------------------------------------------------------
    1.42 +*/
    1.43 +
    1.44 +/** @file Defines a post processing step to split large meshes into submeshes
    1.45 + */
    1.46 +#ifndef AI_SPLITLARGEMESHES_H_INC
    1.47 +#define AI_SPLITLARGEMESHES_H_INC
    1.48 +
    1.49 +#include <vector>
    1.50 +#include "BaseProcess.h"
    1.51 +
    1.52 +#include "assimp/mesh.h"
    1.53 +#include "assimp/scene.h"
    1.54 +
    1.55 +class SplitLargeMeshesTest;
    1.56 +namespace Assimp
    1.57 +{
    1.58 +
    1.59 +class SplitLargeMeshesProcess_Triangle; 
    1.60 +class SplitLargeMeshesProcess_Vertex; 
    1.61 +
    1.62 +// NOTE: If you change these limits, don't forget to change the
    1.63 +// corresponding values in all Assimp ports
    1.64 +
    1.65 +// **********************************************************
    1.66 +// Java: ConfigProperty.java, 
    1.67 +//  ConfigProperty.DEFAULT_VERTEX_SPLIT_LIMIT
    1.68 +//  ConfigProperty.DEFAULT_TRIANGLE_SPLIT_LIMIT
    1.69 +// **********************************************************
    1.70 +
    1.71 +// default limit for vertices
    1.72 +#if (!defined AI_SLM_DEFAULT_MAX_VERTICES)
    1.73 +#	define AI_SLM_DEFAULT_MAX_VERTICES		1000000
    1.74 +#endif
    1.75 +
    1.76 +// default limit for triangles
    1.77 +#if (!defined AI_SLM_DEFAULT_MAX_TRIANGLES)
    1.78 +#	define AI_SLM_DEFAULT_MAX_TRIANGLES		1000000
    1.79 +#endif
    1.80 +
    1.81 +// ---------------------------------------------------------------------------
    1.82 +/** Postprocessing filter to split large meshes into submeshes
    1.83 + *
    1.84 + * Applied BEFORE the JoinVertices-Step occurs.
    1.85 + * Returns NON-UNIQUE vertices, splits by triangle number.
    1.86 +*/
    1.87 +class SplitLargeMeshesProcess_Triangle : public BaseProcess
    1.88 +{
    1.89 +	friend class SplitLargeMeshesProcess_Vertex;
    1.90 +
    1.91 +public:
    1.92 +
    1.93 +	SplitLargeMeshesProcess_Triangle();
    1.94 +	~SplitLargeMeshesProcess_Triangle();
    1.95 +
    1.96 +public:
    1.97 +	// -------------------------------------------------------------------
    1.98 +	/** Returns whether the processing step is present in the given flag.
    1.99 +	* @param pFlags The processing flags the importer was called with. A
   1.100 + 	*   bitwise combination of #aiPostProcessSteps.
   1.101 +	* @return true if the process is present in this flag fields, 
   1.102 + 	*   false if not.
   1.103 +	*/
   1.104 +	bool IsActive( unsigned int pFlags) const;
   1.105 +
   1.106 +
   1.107 +	// -------------------------------------------------------------------
   1.108 +	/** Called prior to ExecuteOnScene().
   1.109 +	* The function is a request to the process to update its configuration
   1.110 +	* basing on the Importer's configuration property list.
   1.111 +	*/
   1.112 +	virtual void SetupProperties(const Importer* pImp);
   1.113 +
   1.114 +
   1.115 +	//! Set the split limit - needed for unit testing
   1.116 +	inline void SetLimit(unsigned int l)
   1.117 +		{LIMIT = l;}
   1.118 +
   1.119 +	//! Get the split limit
   1.120 +	inline unsigned int GetLimit() const
   1.121 +		{return LIMIT;}
   1.122 +
   1.123 +public:
   1.124 +
   1.125 +	// -------------------------------------------------------------------
   1.126 +	/** Executes the post processing step on the given imported data.
   1.127 +	* At the moment a process is not supposed to fail.
   1.128 +	* @param pScene The imported data to work at.
   1.129 +	*/
   1.130 +	void Execute( aiScene* pScene);
   1.131 +
   1.132 +	// -------------------------------------------------------------------
   1.133 +	//! Apply the algorithm to a given mesh
   1.134 +	void SplitMesh (unsigned int a, aiMesh* pcMesh,
   1.135 +		std::vector<std::pair<aiMesh*, unsigned int> >& avList);
   1.136 +
   1.137 +	// -------------------------------------------------------------------
   1.138 +	//! Update a node in the asset after a few of its meshes 
   1.139 +	//! have been split
   1.140 +	static void UpdateNode(aiNode* pcNode,
   1.141 +		const std::vector<std::pair<aiMesh*, unsigned int> >& avList);
   1.142 +
   1.143 +public:
   1.144 +	//! Triangle limit 
   1.145 +	unsigned int LIMIT;
   1.146 +};
   1.147 +
   1.148 +
   1.149 +// ---------------------------------------------------------------------------
   1.150 +/** Postprocessing filter to split large meshes into submeshes
   1.151 + *
   1.152 + * Applied AFTER the JoinVertices-Step occurs.
   1.153 + * Returns UNIQUE vertices, splits by vertex number.
   1.154 +*/
   1.155 +class SplitLargeMeshesProcess_Vertex : public BaseProcess
   1.156 +{
   1.157 +public:
   1.158 +
   1.159 +	SplitLargeMeshesProcess_Vertex();
   1.160 +	~SplitLargeMeshesProcess_Vertex();
   1.161 +
   1.162 +public:
   1.163 +	// -------------------------------------------------------------------
   1.164 +	/** Returns whether the processing step is present in the given flag field.
   1.165 +	* @param pFlags The processing flags the importer was called with. A bitwise
   1.166 +	*   combination of #aiPostProcessSteps.
   1.167 +	* @return true if the process is present in this flag fields, false if not.
   1.168 +	*/
   1.169 +	bool IsActive( unsigned int pFlags) const;
   1.170 +
   1.171 +	// -------------------------------------------------------------------
   1.172 +	/** Called prior to ExecuteOnScene().
   1.173 +	* The function is a request to the process to update its configuration
   1.174 +	* basing on the Importer's configuration property list.
   1.175 +	*/
   1.176 +	virtual void SetupProperties(const Importer* pImp);
   1.177 +
   1.178 +
   1.179 +	//! Set the split limit - needed for unit testing
   1.180 +	inline void SetLimit(unsigned int l)
   1.181 +		{LIMIT = l;}
   1.182 +
   1.183 +	//! Get the split limit
   1.184 +	inline unsigned int GetLimit() const
   1.185 +		{return LIMIT;}
   1.186 +
   1.187 +public:
   1.188 +
   1.189 +	// -------------------------------------------------------------------
   1.190 +	/** Executes the post processing step on the given imported data.
   1.191 +	* At the moment a process is not supposed to fail.
   1.192 +	* @param pScene The imported data to work at.
   1.193 +	*/
   1.194 +	void Execute( aiScene* pScene);
   1.195 +
   1.196 +	// -------------------------------------------------------------------
   1.197 +	//! Apply the algorithm to a given mesh
   1.198 +	void SplitMesh (unsigned int a, aiMesh* pcMesh,
   1.199 +		std::vector<std::pair<aiMesh*, unsigned int> >& avList);
   1.200 +
   1.201 +	// NOTE: Reuse SplitLargeMeshesProcess_Triangle::UpdateNode()
   1.202 +
   1.203 +public:
   1.204 +	//! Triangle limit 
   1.205 +	unsigned int LIMIT;
   1.206 +};
   1.207 +
   1.208 +} // end of namespace Assimp
   1.209 +
   1.210 +#endif // !!AI_SPLITLARGEMESHES_H_INC