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b311480e | 1 | // Created on: 2008-04-10 |
2 | // Created by: Peter KURNEV | |
973c2be1 | 3 | // Copyright (c) 2008-2014 OPEN CASCADE SAS |
b311480e | 4 | // |
973c2be1 | 5 | // This file is part of Open CASCADE Technology software library. |
b311480e | 6 | // |
d5f74e42 | 7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published | |
973c2be1 | 9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | |
11 | // distribution for complete text of the license and disclaimer of any warranty. | |
b311480e | 12 | // |
973c2be1 | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. | |
7fd59977 | 15 | |
fc9b36d6 | 16 | #include <BRepMesh_DiscretFactory.hxx> |
7fd59977 | 17 | |
18 | #include <OSD_SharedLibrary.hxx> | |
19 | #include <OSD_Function.hxx> | |
20 | #include <BRepMesh_IncrementalMesh.hxx> | |
0b97567d | 21 | #include <BRepMesh_PDiscretRoot.hxx> |
7fd59977 | 22 | |
0b97567d K |
23 | namespace |
24 | { | |
25 | //! Embedded triangulation tool(s) | |
26 | static TCollection_AsciiString THE_FAST_DISCRET_MESH ("FastDiscret"); | |
27 | ||
28 | //! Generate system-dependent name for dynamic library | |
29 | //! (add standard prefixes and postfixes) | |
30 | static void MakeLibName (const TCollection_AsciiString& theDefaultName, | |
31 | TCollection_AsciiString& theLibName) | |
32 | { | |
33 | theLibName = ""; | |
34 | #ifndef WNT | |
35 | theLibName += "lib"; | |
36 | #endif | |
37 | theLibName += theDefaultName; | |
38 | #ifdef WNT | |
39 | theLibName += ".dll"; | |
40 | #elif __APPLE__ | |
41 | theLibName += ".dylib"; | |
42 | #elif defined (HPUX) || defined(_hpux) | |
43 | theLibName += ".sl"; | |
44 | #else | |
45 | theLibName += ".so"; | |
46 | #endif | |
47 | } | |
48 | }; | |
7fd59977 | 49 | |
50 | //======================================================================= | |
51 | //function : BRepMesh_DiscretFactory | |
0b97567d | 52 | //purpose : |
7fd59977 | 53 | //======================================================================= |
54 | BRepMesh_DiscretFactory::BRepMesh_DiscretFactory() | |
fc9b36d6 | 55 | : myPluginEntry (NULL), |
56 | myErrorStatus (BRepMesh_FE_NOERROR), | |
57 | myDefaultName (THE_FAST_DISCRET_MESH), | |
0b97567d | 58 | myFunctionName ("DISCRETALGO") |
7fd59977 | 59 | { |
0b97567d | 60 | // register built-in meshing algorithms |
fc9b36d6 | 61 | myNames.Add(THE_FAST_DISCRET_MESH); |
7fd59977 | 62 | } |
0b97567d | 63 | |
7fd59977 | 64 | //======================================================================= |
65 | //function : ~ | |
0b97567d | 66 | //purpose : |
7fd59977 | 67 | //======================================================================= |
68 | BRepMesh_DiscretFactory::~BRepMesh_DiscretFactory() | |
69 | { | |
fc9b36d6 | 70 | clear(); |
7fd59977 | 71 | } |
0b97567d | 72 | |
7fd59977 | 73 | //======================================================================= |
fc9b36d6 | 74 | //function : clear |
0b97567d | 75 | //purpose : |
7fd59977 | 76 | //======================================================================= |
fc9b36d6 | 77 | void BRepMesh_DiscretFactory::clear() |
7fd59977 | 78 | { |
0b97567d | 79 | // what should we do here? Unload dynamic libraries and reset plugins list? |
7fd59977 | 80 | } |
0b97567d | 81 | |
7fd59977 | 82 | //======================================================================= |
83 | //function : Get | |
0b97567d | 84 | //purpose : |
7fd59977 | 85 | //======================================================================= |
0b97567d | 86 | BRepMesh_DiscretFactory& BRepMesh_DiscretFactory::Get() |
7fd59977 | 87 | { |
0b97567d K |
88 | //! global factory instance |
89 | static BRepMesh_DiscretFactory THE_GLOBAL_FACTORY; | |
90 | return THE_GLOBAL_FACTORY; | |
7fd59977 | 91 | } |
0b97567d | 92 | |
7fd59977 | 93 | //======================================================================= |
0b97567d K |
94 | //function : SetDefault |
95 | //purpose : | |
7fd59977 | 96 | //======================================================================= |
fc9b36d6 | 97 | Standard_Boolean BRepMesh_DiscretFactory::SetDefault( |
98 | const TCollection_AsciiString& theName, | |
99 | const TCollection_AsciiString& theFuncName) | |
7fd59977 | 100 | { |
0b97567d K |
101 | myErrorStatus = BRepMesh_FE_NOERROR; |
102 | if (theName == THE_FAST_DISCRET_MESH) | |
103 | { | |
104 | // built-in, nothing to do | |
105 | myPluginEntry = NULL; | |
106 | myDefaultName = theName; | |
107 | myFunctionName = theFuncName; | |
108 | return Standard_True; | |
109 | } | |
110 | else if (theName == myDefaultName && theFuncName == myFunctionName) | |
111 | { | |
112 | // already active | |
113 | return myPluginEntry != NULL; | |
7fd59977 | 114 | } |
0b97567d K |
115 | |
116 | TCollection_AsciiString aMeshAlgoId = theName + "_" + theFuncName; | |
117 | BRepMesh_PluginEntryType aFunc = NULL; | |
118 | if (myFactoryMethods.IsBound (aMeshAlgoId)) | |
119 | { | |
120 | // retrieve from cache | |
121 | aFunc = (BRepMesh_PluginEntryType )myFactoryMethods (aMeshAlgoId); | |
122 | } | |
123 | else | |
124 | { | |
7fd59977 | 125 | TCollection_AsciiString aLibName; |
0b97567d K |
126 | MakeLibName (theName, aLibName); |
127 | OSD_SharedLibrary aSL (aLibName.ToCString()); | |
128 | if (!aSL.DlOpen (OSD_RTLD_LAZY)) | |
129 | { | |
130 | // library is not found | |
131 | myErrorStatus = BRepMesh_FE_LIBRARYNOTFOUND; | |
132 | return Standard_False; | |
7fd59977 | 133 | } |
0b97567d K |
134 | |
135 | // retrieve the function from plugin | |
136 | aFunc = (BRepMesh_PluginEntryType )aSL.DlSymb (theFuncName.ToCString()); | |
137 | myFactoryMethods.Bind (aMeshAlgoId, (OSD_Function )aFunc); | |
138 | } | |
139 | ||
140 | if (aFunc == NULL) | |
141 | { | |
142 | // function is not found - invalid plugin? | |
143 | myErrorStatus = BRepMesh_FE_FUNCTIONNOTFOUND; | |
144 | return Standard_False; | |
145 | } | |
146 | ||
147 | // try to create dummy tool | |
148 | BRepMesh_PDiscretRoot anInstancePtr = NULL; | |
149 | Standard_Integer anErr = aFunc (TopoDS_Shape(), 0.001, 0.1, anInstancePtr); | |
150 | if (anErr != 0 || anInstancePtr == NULL) | |
151 | { | |
152 | // can not create the algo specified | |
153 | myErrorStatus = BRepMesh_FE_CANNOTCREATEALGO; | |
154 | delete anInstancePtr; | |
155 | return Standard_False; | |
7fd59977 | 156 | } |
0b97567d K |
157 | delete anInstancePtr; |
158 | ||
159 | // if all checks done - switch to this tool | |
160 | myPluginEntry = aFunc; | |
161 | myDefaultName = theName; | |
162 | myFunctionName = theFuncName; | |
163 | myNames.Add (theName); | |
164 | return Standard_True; | |
7fd59977 | 165 | } |
0b97567d | 166 | |
7fd59977 | 167 | //======================================================================= |
0b97567d K |
168 | //function : Discret |
169 | //purpose : | |
7fd59977 | 170 | //======================================================================= |
fc9b36d6 | 171 | Handle(BRepMesh_DiscretRoot) BRepMesh_DiscretFactory::Discret( |
172 | const TopoDS_Shape& theShape, | |
173 | const Standard_Real theDeflection, | |
174 | const Standard_Real theAngle) | |
7fd59977 | 175 | { |
0b97567d K |
176 | Handle(BRepMesh_DiscretRoot) aDiscretRoot; |
177 | BRepMesh_PDiscretRoot anInstancePtr = NULL; | |
178 | if (myPluginEntry != NULL) | |
179 | { | |
180 | // use plugin | |
fc9b36d6 | 181 | Standard_Integer anErr = myPluginEntry (theShape, |
182 | theDeflection, theAngle, anInstancePtr); | |
183 | ||
0b97567d K |
184 | if (anErr != 0 || anInstancePtr == NULL) |
185 | { | |
186 | // can not create the algo specified - should never happens here | |
187 | myErrorStatus = BRepMesh_FE_CANNOTCREATEALGO; | |
188 | return aDiscretRoot; | |
189 | } | |
190 | } | |
191 | else //if (myDefaultName == THE_FAST_DISCRET_MESH) | |
192 | { | |
193 | // use built-in | |
fc9b36d6 | 194 | BRepMesh_IncrementalMesh::Discret (theShape, |
195 | theDeflection, theAngle, anInstancePtr); | |
0b97567d K |
196 | } |
197 | ||
198 | // cover with handle | |
199 | aDiscretRoot = anInstancePtr; | |
200 | ||
201 | // return the handle | |
202 | return aDiscretRoot; | |
7fd59977 | 203 | } |