146 lines
4.9 KiB
C++
146 lines
4.9 KiB
C++
/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2012, 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 ColladaExporter.h
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* Declares the exporter class to write a scene to a Collada file
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*/
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#ifndef AI_COLLADAEXPORTER_H_INC
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#define AI_COLLADAEXPORTER_H_INC
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#include "../include/assimp/assert.h"
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#include <sstream>
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struct aiScene;
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struct aiNode;
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namespace Assimp
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{
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/// Helper class to export a given scene to a Collada file. Just for my personal
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/// comfort when implementing it.
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class ColladaExporter
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{
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public:
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/// Constructor for a specific scene to export
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ColladaExporter( const aiScene* pScene);
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protected:
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/// Starts writing the contents
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void WriteFile();
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/// Writes the asset header
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void WriteHeader();
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/// Writes the material setup
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void WriteMaterials();
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/// Writes the geometry library
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void WriteGeometryLibrary();
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/// Writes the given mesh
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void WriteGeometry( size_t pIndex);
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enum FloatDataType { FloatType_Vector, FloatType_TexCoord2, FloatType_TexCoord3, FloatType_Color };
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/// Writes a float array of the given type
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void WriteFloatArray( const std::string& pIdString, FloatDataType pType, const float* pData, size_t pElementCount);
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/// Writes the scene library
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void WriteSceneLibrary();
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/// Recursively writes the given node
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void WriteNode( const aiNode* pNode);
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/// Enters a new xml element, which increases the indentation
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void PushTag() { startstr.append( " "); }
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/// Leaves an element, decreasing the indentation
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void PopTag() { ai_assert( startstr.length() > 1); startstr.erase( startstr.length() - 2); }
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/// Creates a mesh ID for the given mesh
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std::string GetMeshId( size_t pIndex) const { return std::string( "meshId" ) + boost::lexical_cast<std::string> (pIndex); }
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public:
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/// Stringstream to write all output into
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std::stringstream mOutput;
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protected:
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/// The scene to be written
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const aiScene* mScene;
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/// current line start string, contains the current indentation for simple stream insertion
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std::string startstr;
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/// current line end string for simple stream insertion
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std::string endstr;
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// pair of color and texture - texture precedences color
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struct Surface
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{
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aiColor4D color;
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std::string texture;
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size_t channel;
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Surface() { channel = 0; }
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};
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// summarize a material in an convinient way.
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struct Material
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{
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std::string name;
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Surface ambient, diffuse, specular, emissive, reflective, normal;
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float shininess; /// specular exponent
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Material() { shininess = 16.0f; }
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};
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std::vector<Material> materials;
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protected:
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/// Dammit C++ - y u no compile two-pass? No I have to add all methods below the struct definitions
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/// Reads a single surface entry from the given material keys
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void ReadMaterialSurface( Surface& poSurface, const aiMaterial* pSrcMat, aiTextureType pTexture, const char* pKey, size_t pType, size_t pIndex);
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/// Writes an image entry for the given surface
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void WriteImageEntry( const Surface& pSurface, const std::string& pNameAdd);
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/// Writes a color-or-texture entry into an effect definition
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void WriteTextureColorEntry( const Surface& pSurface, const std::string& pTypeName, const std::string& pImageName);
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};
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}
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#endif // !! AI_COLLADAEXPORTER_H_INC
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