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annotate libs/assimp/LWSLoader.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 LWSLoader.h
nuclear@0 42 * @brief Declaration of the LightWave scene importer class.
nuclear@0 43 */
nuclear@0 44 #ifndef AI_LWSLOADER_H_INCLUDED
nuclear@0 45 #define AI_LWSLOADER_H_INCLUDED
nuclear@0 46
nuclear@0 47 #include "LWOFileData.h"
nuclear@0 48 #include "SceneCombiner.h"
nuclear@0 49
nuclear@0 50 namespace Assimp {
nuclear@0 51 namespace LWS {
nuclear@0 52
nuclear@0 53 // ---------------------------------------------------------------------------
nuclear@0 54 /** Represents an element in a LWS file.
nuclear@0 55 *
nuclear@0 56 * This can either be a single data line - <name> <value> or a data
nuclear@0 57 * group - { name <data_line0> ... n }
nuclear@0 58 */
nuclear@0 59 class Element
nuclear@0 60 {
nuclear@0 61 public:
nuclear@0 62 Element()
nuclear@0 63 {}
nuclear@0 64
nuclear@0 65 // first: name, second: rest
nuclear@0 66 std::string tokens[2];
nuclear@0 67 std::list<Element> children;
nuclear@0 68
nuclear@0 69 //! Recursive parsing function
nuclear@0 70 void Parse (const char*& buffer);
nuclear@0 71 };
nuclear@0 72
nuclear@0 73 #define AI_LWS_MASK (0xffffffff >> 4u)
nuclear@0 74
nuclear@0 75 // ---------------------------------------------------------------------------
nuclear@0 76 /** Represents a LWS scenegraph element
nuclear@0 77 */
nuclear@0 78 struct NodeDesc
nuclear@0 79 {
nuclear@0 80 NodeDesc()
nuclear@0 81 : number (0)
nuclear@0 82 , parent (0)
nuclear@0 83 , name ("")
nuclear@0 84 , isPivotSet (false)
nuclear@0 85 , lightColor (1.f,1.f,1.f)
nuclear@0 86 , lightIntensity (1.f)
nuclear@0 87 , lightType (0)
nuclear@0 88 , lightFalloffType (0)
nuclear@0 89 , lightConeAngle (45.f)
nuclear@0 90 , parent_resolved (NULL)
nuclear@0 91 {}
nuclear@0 92
nuclear@0 93 enum {
nuclear@0 94
nuclear@0 95 OBJECT = 1,
nuclear@0 96 LIGHT = 2,
nuclear@0 97 CAMERA = 3,
nuclear@0 98 BONE = 4
nuclear@0 99 } type; // type of node
nuclear@0 100
nuclear@0 101 // if object: path
nuclear@0 102 std::string path;
nuclear@0 103 unsigned int id;
nuclear@0 104
nuclear@0 105 // number of object
nuclear@0 106 unsigned int number;
nuclear@0 107
nuclear@0 108 // index of parent index
nuclear@0 109 unsigned int parent;
nuclear@0 110
nuclear@0 111 // lights & cameras & dummies: name
nuclear@0 112 const char* name;
nuclear@0 113
nuclear@0 114 // animation channels
nuclear@0 115 std::list< LWO::Envelope > channels;
nuclear@0 116
nuclear@0 117 // position of pivot point
nuclear@0 118 aiVector3D pivotPos;
nuclear@0 119 bool isPivotSet;
nuclear@0 120
nuclear@0 121
nuclear@0 122
nuclear@0 123 // color of light source
nuclear@0 124 aiColor3D lightColor;
nuclear@0 125
nuclear@0 126 // intensity of light source
nuclear@0 127 float lightIntensity;
nuclear@0 128
nuclear@0 129 // type of light source
nuclear@0 130 unsigned int lightType;
nuclear@0 131
nuclear@0 132 // falloff type of light source
nuclear@0 133 unsigned int lightFalloffType;
nuclear@0 134
nuclear@0 135 // cone angle of (spot) light source
nuclear@0 136 float lightConeAngle;
nuclear@0 137
nuclear@0 138 // soft cone angle of (spot) light source
nuclear@0 139 float lightEdgeAngle;
nuclear@0 140
nuclear@0 141
nuclear@0 142
nuclear@0 143 // list of resolved children
nuclear@0 144 std::list< NodeDesc* > children;
nuclear@0 145
nuclear@0 146 // resolved parent node
nuclear@0 147 NodeDesc* parent_resolved;
nuclear@0 148
nuclear@0 149
nuclear@0 150 // for std::find()
nuclear@0 151 bool operator == (unsigned int num) const {
nuclear@0 152 if (!num)
nuclear@0 153 return false;
nuclear@0 154 unsigned int _type = num >> 28u;
nuclear@0 155
nuclear@0 156 return _type == static_cast<unsigned int>(type) && (num & AI_LWS_MASK) == number;
nuclear@0 157 }
nuclear@0 158 };
nuclear@0 159
nuclear@0 160 } // end namespace LWS
nuclear@0 161
nuclear@0 162 // ---------------------------------------------------------------------------
nuclear@0 163 /** LWS (LightWave Scene Format) importer class.
nuclear@0 164 *
nuclear@0 165 * This class does heavily depend on the LWO importer class. LWS files
nuclear@0 166 * contain mainly descriptions how LWO objects are composed together
nuclear@0 167 * in a scene.
nuclear@0 168 */
nuclear@0 169 class LWSImporter : public BaseImporter
nuclear@0 170 {
nuclear@0 171 public:
nuclear@0 172 LWSImporter();
nuclear@0 173 ~LWSImporter();
nuclear@0 174
nuclear@0 175
nuclear@0 176 public:
nuclear@0 177
nuclear@0 178 // -------------------------------------------------------------------
nuclear@0 179 // Check whether we can read a specific file
nuclear@0 180 bool CanRead( const std::string& pFile, IOSystem* pIOHandler,
nuclear@0 181 bool checkSig) const;
nuclear@0 182
nuclear@0 183 protected:
nuclear@0 184
nuclear@0 185 // -------------------------------------------------------------------
nuclear@0 186 // Get list of supported extensions
nuclear@0 187 const aiImporterDesc* GetInfo () const;
nuclear@0 188
nuclear@0 189 // -------------------------------------------------------------------
nuclear@0 190 // Import file into given scene data structure
nuclear@0 191 void InternReadFile( const std::string& pFile, aiScene* pScene,
nuclear@0 192 IOSystem* pIOHandler);
nuclear@0 193
nuclear@0 194 // -------------------------------------------------------------------
nuclear@0 195 // Setup import properties
nuclear@0 196 void SetupProperties(const Importer* pImp);
nuclear@0 197
nuclear@0 198 private:
nuclear@0 199
nuclear@0 200
nuclear@0 201 // -------------------------------------------------------------------
nuclear@0 202 // Read an envelope description
nuclear@0 203 void ReadEnvelope(const LWS::Element& dad, LWO::Envelope& out );
nuclear@0 204
nuclear@0 205 // -------------------------------------------------------------------
nuclear@0 206 // Read an envelope description for the older LW file format
nuclear@0 207 void ReadEnvelope_Old(std::list< LWS::Element >::const_iterator& it,
nuclear@0 208 const std::list< LWS::Element >::const_iterator& end,
nuclear@0 209 LWS::NodeDesc& nodes,
nuclear@0 210 unsigned int version);
nuclear@0 211
nuclear@0 212 // -------------------------------------------------------------------
nuclear@0 213 // Setup a nice name for a node
nuclear@0 214 void SetupNodeName(aiNode* nd, LWS::NodeDesc& src);
nuclear@0 215
nuclear@0 216 // -------------------------------------------------------------------
nuclear@0 217 // Recursively build the scenegraph
nuclear@0 218 void BuildGraph(aiNode* nd,
nuclear@0 219 LWS::NodeDesc& src,
nuclear@0 220 std::vector<AttachmentInfo>& attach,
nuclear@0 221 BatchLoader& batch,
nuclear@0 222 aiCamera**& camOut,
nuclear@0 223 aiLight**& lightOut,
nuclear@0 224 std::vector<aiNodeAnim*>& animOut);
nuclear@0 225
nuclear@0 226 // -------------------------------------------------------------------
nuclear@0 227 // Try several dirs until we find the right location of a LWS file.
nuclear@0 228 std::string FindLWOFile(const std::string& in);
nuclear@0 229
nuclear@0 230 private:
nuclear@0 231
nuclear@0 232 bool configSpeedFlag;
nuclear@0 233 IOSystem* io;
nuclear@0 234
nuclear@0 235 double first,last,fps;
nuclear@0 236
nuclear@0 237 bool noSkeletonMesh;
nuclear@0 238 };
nuclear@0 239
nuclear@0 240 } // end of namespace Assimp
nuclear@0 241
nuclear@0 242 #endif // AI_LWSIMPORTER_H_INC