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annotate libs/assimp/ColladaExporter.h @ 0:b2f14e535253

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author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 01 Feb 2014 19:58:19 +0200
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nuclear@0 1 /*
nuclear@0 2 Open Asset Import Library (assimp)
nuclear@0 3 ----------------------------------------------------------------------
nuclear@0 4
nuclear@0 5 Copyright (c) 2006-2012, assimp team
nuclear@0 6 All rights reserved.
nuclear@0 7
nuclear@0 8 Redistribution and use of this software in source and binary forms,
nuclear@0 9 with or without modification, are permitted provided that the
nuclear@0 10 following conditions are met:
nuclear@0 11
nuclear@0 12 * Redistributions of source code must retain the above
nuclear@0 13 copyright notice, this list of conditions and the
nuclear@0 14 following disclaimer.
nuclear@0 15
nuclear@0 16 * Redistributions in binary form must reproduce the above
nuclear@0 17 copyright notice, this list of conditions and the
nuclear@0 18 following disclaimer in the documentation and/or other
nuclear@0 19 materials provided with the distribution.
nuclear@0 20
nuclear@0 21 * Neither the name of the assimp team, nor the names of its
nuclear@0 22 contributors may be used to endorse or promote products
nuclear@0 23 derived from this software without specific prior
nuclear@0 24 written permission of the assimp team.
nuclear@0 25
nuclear@0 26 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
nuclear@0 27 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
nuclear@0 28 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
nuclear@0 29 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
nuclear@0 30 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
nuclear@0 31 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
nuclear@0 32 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
nuclear@0 33 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
nuclear@0 34 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
nuclear@0 35 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
nuclear@0 36 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
nuclear@0 37
nuclear@0 38 ----------------------------------------------------------------------
nuclear@0 39 */
nuclear@0 40
nuclear@0 41 /** @file ColladaExporter.h
nuclear@0 42 * Declares the exporter class to write a scene to a Collada file
nuclear@0 43 */
nuclear@0 44 #ifndef AI_COLLADAEXPORTER_H_INC
nuclear@0 45 #define AI_COLLADAEXPORTER_H_INC
nuclear@0 46
nuclear@0 47 #include "assimp/ai_assert.h"
nuclear@0 48 #include <sstream>
nuclear@0 49
nuclear@0 50 struct aiScene;
nuclear@0 51 struct aiNode;
nuclear@0 52
nuclear@0 53 namespace Assimp
nuclear@0 54 {
nuclear@0 55
nuclear@0 56 /// Helper class to export a given scene to a Collada file. Just for my personal
nuclear@0 57 /// comfort when implementing it.
nuclear@0 58 class ColladaExporter
nuclear@0 59 {
nuclear@0 60 public:
nuclear@0 61 /// Constructor for a specific scene to export
nuclear@0 62 ColladaExporter( const aiScene* pScene);
nuclear@0 63
nuclear@0 64 protected:
nuclear@0 65 /// Starts writing the contents
nuclear@0 66 void WriteFile();
nuclear@0 67
nuclear@0 68 /// Writes the asset header
nuclear@0 69 void WriteHeader();
nuclear@0 70
nuclear@0 71 /// Writes the material setup
nuclear@0 72 void WriteMaterials();
nuclear@0 73
nuclear@0 74 /// Writes the geometry library
nuclear@0 75 void WriteGeometryLibrary();
nuclear@0 76
nuclear@0 77 /// Writes the given mesh
nuclear@0 78 void WriteGeometry( size_t pIndex);
nuclear@0 79
nuclear@0 80 enum FloatDataType { FloatType_Vector, FloatType_TexCoord2, FloatType_TexCoord3, FloatType_Color };
nuclear@0 81
nuclear@0 82 /// Writes a float array of the given type
nuclear@0 83 void WriteFloatArray( const std::string& pIdString, FloatDataType pType, const float* pData, size_t pElementCount);
nuclear@0 84
nuclear@0 85 /// Writes the scene library
nuclear@0 86 void WriteSceneLibrary();
nuclear@0 87
nuclear@0 88 /// Recursively writes the given node
nuclear@0 89 void WriteNode( const aiNode* pNode);
nuclear@0 90
nuclear@0 91 /// Enters a new xml element, which increases the indentation
nuclear@0 92 void PushTag() { startstr.append( " "); }
nuclear@0 93 /// Leaves an element, decreasing the indentation
nuclear@0 94 void PopTag() { ai_assert( startstr.length() > 1); startstr.erase( startstr.length() - 2); }
nuclear@0 95
nuclear@0 96 /// Creates a mesh ID for the given mesh
nuclear@0 97 std::string GetMeshId( size_t pIndex) const { return std::string( "meshId" ) + boost::lexical_cast<std::string> (pIndex); }
nuclear@0 98
nuclear@0 99 public:
nuclear@0 100 /// Stringstream to write all output into
nuclear@0 101 std::stringstream mOutput;
nuclear@0 102
nuclear@0 103 protected:
nuclear@0 104 /// The scene to be written
nuclear@0 105 const aiScene* mScene;
nuclear@0 106
nuclear@0 107 /// current line start string, contains the current indentation for simple stream insertion
nuclear@0 108 std::string startstr;
nuclear@0 109 /// current line end string for simple stream insertion
nuclear@0 110 std::string endstr;
nuclear@0 111
nuclear@0 112 // pair of color and texture - texture precedences color
nuclear@0 113 struct Surface
nuclear@0 114 {
nuclear@0 115 aiColor4D color;
nuclear@0 116 std::string texture;
nuclear@0 117 size_t channel;
nuclear@0 118 Surface() { channel = 0; }
nuclear@0 119 };
nuclear@0 120
nuclear@0 121 // summarize a material in an convinient way.
nuclear@0 122 struct Material
nuclear@0 123 {
nuclear@0 124 std::string name;
nuclear@0 125 Surface ambient, diffuse, specular, emissive, reflective, normal;
nuclear@0 126 float shininess; /// specular exponent
nuclear@0 127
nuclear@0 128 Material() { shininess = 16.0f; }
nuclear@0 129 };
nuclear@0 130
nuclear@0 131 std::vector<Material> materials;
nuclear@0 132
nuclear@0 133 protected:
nuclear@0 134 /// Dammit C++ - y u no compile two-pass? No I have to add all methods below the struct definitions
nuclear@0 135 /// Reads a single surface entry from the given material keys
nuclear@0 136 void ReadMaterialSurface( Surface& poSurface, const aiMaterial* pSrcMat, aiTextureType pTexture, const char* pKey, size_t pType, size_t pIndex);
nuclear@0 137 /// Writes an image entry for the given surface
nuclear@0 138 void WriteImageEntry( const Surface& pSurface, const std::string& pNameAdd);
nuclear@0 139 /// Writes the two parameters necessary for referencing a texture in an effect entry
nuclear@0 140 void WriteTextureParamEntry( const Surface& pSurface, const std::string& pTypeName, const std::string& pMatName);
nuclear@0 141 /// Writes a color-or-texture entry into an effect definition
nuclear@0 142 void WriteTextureColorEntry( const Surface& pSurface, const std::string& pTypeName, const std::string& pImageName);
nuclear@0 143 };
nuclear@0 144
nuclear@0 145 }
nuclear@0 146
nuclear@0 147 #endif // !! AI_COLLADAEXPORTER_H_INC