src/SketcherPrs/SketcherPrs_SymbolPrs.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        SketcherPrs_SymbolPrs.cpp
   4 // Created:     12 March 2015
   5 // Author:      Vitaly SMETANNIKOV
   6
   7 #include "SketcherPrs_SymbolPrs.h"
   8 #include "SketcherPrs_Tools.h"
   9 #include "SketcherPrs_PositionMgr.h"
  10
  11 #include <GeomAPI_Edge.h>
  12
  13 #include <Graphic3d_ArrayOfSegments.hxx>
  14 #include <Graphic3d_BndBox4f.hxx>
  15
  16 #include <SelectMgr_Selection.hxx>
  17 #include <Select3D_SensitivePoint.hxx>
  18 #include <TopLoc_Location.hxx>
  19 #include <AIS_InteractiveContext.hxx>
  20 #include <V3d_Viewer.hxx>
  21 #include <Prs3d_Root.hxx>
  22
  23 #include <OpenGl_Element.hxx>
  24 #include <OpenGl_GraphicDriver.hxx>
  25 #include <OpenGl_Context.hxx>
  26 #include <OpenGl_View.hxx>
  27 #include <OpenGl_PointSprite.hxx>
  28 #include <OpenGl_VertexBuffer.hxx>
  29 #include <OpenGl_ShaderManager.hxx>
  30 #include <OpenGl_VertexBufferCompat.hxx>
  31 #include <OpenGl_GraphicDriver.hxx>
  32
  33 #ifdef WIN32
  34 # define FSEP "\\"
  35 #else
  36 # define FSEP "/"
  37 #endif
  38
  39 /// Step between icons
  40 static const double MyDist = 0.02;
  41
  42 /// Function to convert opengl data type
  43 GLenum toGlDataType (const Graphic3d_TypeOfData theType, GLint& theNbComp)
  44 {
  45   switch (theType) {
  46     case Graphic3d_TOD_USHORT:
  47       theNbComp = 1;
  48       return GL_UNSIGNED_SHORT;
  49     case Graphic3d_TOD_UINT:
  50       theNbComp = 1;
  51       return GL_UNSIGNED_INT;
  52     case Graphic3d_TOD_VEC2:
  53       theNbComp = 2;
  54       return GL_FLOAT;
  55     case Graphic3d_TOD_VEC3:
  56       theNbComp = 3;
  57       return GL_FLOAT;
  58     case Graphic3d_TOD_VEC4:
  59       theNbComp = 4;
  60       return GL_FLOAT;
  61     case Graphic3d_TOD_VEC4UB:
  62       theNbComp = 4;
  63       return GL_UNSIGNED_BYTE;
  64   }
  65   theNbComp = 0;
  66   return GL_NONE;
  67 }
  68
  69
  70 //*******************************************************************
  71 //! Auxiliary class for Vertex buffer with interleaved attributes.
  72 class SketcherPrs_VertexBuffer : public OpenGl_VertexBuffer
  73 {
  74
  75 public:
  76
  77   //! Create uninitialized VBO..
  78   SketcherPrs_VertexBuffer (const Graphic3d_Attribute* theAttribs,
  79                         const Standard_Integer     theStride)
  80   : Stride (theStride), NbAttributes(1)
  81   {
  82
  83     memcpy (Attribs, theAttribs, sizeof(Graphic3d_Attribute) * NbAttributes);
  84   }
  85
  86   //! Create uninitialized VBO.
  87   SketcherPrs_VertexBuffer (const Graphic3d_Buffer& theAttribs)
  88   : Stride (theAttribs.Stride), NbAttributes(1)
  89   {
  90     memcpy (Attribs, theAttribs.AttributesArray(), sizeof(Graphic3d_Attribute) * NbAttributes);
  91   }
  92
  93   virtual bool HasColorAttribute() const
  94   {
  95     for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter) {
  96       const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
  97       if (anAttrib.Id == Graphic3d_TOA_COLOR) {
  98         return true;
  99       }
 100     }
 101     return false;
 102   }
 103
 104   virtual bool HasNormalAttribute() const
 105   {
 106     for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter) {
 107       const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
 108       if (anAttrib.Id == Graphic3d_TOA_NORM) {
 109         return true;
 110       }
 111     }
 112     return false;
 113   }
 114
 115   virtual void BindPositionAttribute (const Handle(OpenGl_Context)& theGlCtx) const
 116   {
 117     if (!OpenGl_VertexBuffer::IsValid()) {
 118       return;
 119     }
 120
 121     OpenGl_VertexBuffer::Bind (theGlCtx);
 122     GLint aNbComp;
 123     const GLubyte* anOffset = OpenGl_VertexBuffer::myOffset;
 124     for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter) {
 125       const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
 126       const GLenum   aDataType = toGlDataType (anAttrib.DataType, aNbComp);
 127       if (aDataType == GL_NONE) {
 128         continue;
 129       } else if (anAttrib.Id == Graphic3d_TOA_POS) {
 130         OpenGl_VertexBuffer::bindAttribute (theGlCtx, Graphic3d_TOA_POS, aNbComp, aDataType, Stride, anOffset);
 131         break;
 132       }
 133
 134       anOffset += Graphic3d_Attribute::Stride (anAttrib.DataType);
 135     }
 136   }
 137
 138   virtual void BindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const
 139   {
 140     if (!OpenGl_VertexBuffer::IsValid())
 141       return;
 142
 143     OpenGl_VertexBuffer::Bind (theGlCtx);
 144     GLint aNbComp;
 145     const GLubyte* anOffset = OpenGl_VertexBuffer::myOffset;
 146     for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
 147     {
 148       const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
 149       const GLenum   aDataType = toGlDataType (anAttrib.DataType, aNbComp);
 150       if (aDataType == GL_NONE)
 151         continue;
 152
 153       OpenGl_VertexBuffer::bindAttribute (theGlCtx, anAttrib.Id, aNbComp, aDataType, Stride, anOffset);
 154       anOffset += Graphic3d_Attribute::Stride (anAttrib.DataType);
 155     }
 156   }
 157
 158   virtual void UnbindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const
 159   {
 160     if (!OpenGl_VertexBuffer::IsValid())
 161       return;
 162     OpenGl_VertexBuffer::Unbind (theGlCtx);
 163
 164     for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter) {
 165       const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
 166       OpenGl_VertexBuffer::unbindAttribute (theGlCtx, anAttrib.Id);
 167     }
 168   }
 169
 170 public:
 171
 172   Graphic3d_Attribute Attribs[1];
 173   Standard_Integer    Stride;
 174   Standard_Integer NbAttributes;
 175 };
 176
 177 //**************************************************************
 178 //! Redefinition of OpenGl_Element
 179 class SketcherPrs_Element: public OpenGl_Element
 180 {
 181 public:
 182   SketcherPrs_Element(const Handle(SketcherPrs_SymbolPrs)& theObj) :
 183   OpenGl_Element(), myObj(theObj) {}
 184
 185   virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const
 186   {
 187     if (!myObj.IsNull())
 188       myObj->Render(theWorkspace);
 189   }
 190
 191   virtual void Release (OpenGl_Context* theContext)
 192   {
 193     if (!myObj.IsNull())
 194       myObj->Release(theContext);
 195   }
 196
 197 private:
 198   Handle(SketcherPrs_SymbolPrs) myObj;
 199 };
 200
 201
 202 //**************************************************************
 203 //! Definition of call back
 204 OpenGl_Element* SymbolPrsCallBack(const CALL_DEF_USERDRAW * theUserDraw)
 205 {
 206   Handle(SketcherPrs_SymbolPrs) anIObj = (SketcherPrs_SymbolPrs*)theUserDraw->Data;
 207   if (anIObj.IsNull()) {
 208     std::cout << "VUserDrawCallback error: null object passed, the custom scene element will not be rendered" << std::endl;
 209   }
 210   return new SketcherPrs_Element(anIObj);
 211 }
 212
 213
 214 //*****************************************************************************
 215 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_SymbolPrs, AIS_InteractiveObject);
 216 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_SymbolPrs, AIS_InteractiveObject);
 217
 218
 219 std::map<const char*, Handle(Image_AlienPixMap)> SketcherPrs_SymbolPrs::myIconsMap;
 220
 221
 222 SketcherPrs_SymbolPrs::SketcherPrs_SymbolPrs(SketchPlugin_Constraint* theConstraint,
 223                                              const std::shared_ptr<GeomAPI_Ax3>& thePlane)
 224  : AIS_InteractiveObject(), myConstraint(theConstraint), myPlane(thePlane)
 225 {
 226   SetAutoHilight(Standard_False);
 227 }
 228
 229 SketcherPrs_SymbolPrs::~SketcherPrs_SymbolPrs()
 230 {
 231   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
 232   aMgr->deleteConstraint(this);
 233 }
 234
 235
 236
 237 Handle(Image_AlienPixMap) SketcherPrs_SymbolPrs::icon()
 238 {
 239   if (myIconsMap.count(iconName()) == 1) {
 240     return myIconsMap[iconName()];
 241   }
 242   TCollection_AsciiString aFile(getenv("NewGeomResources"));
 243   aFile += FSEP;
 244   aFile += iconName();
 245   Handle(Image_AlienPixMap) aPixMap = new Image_AlienPixMap();
 246   if (aPixMap->Load(aFile)) {
 247     myIconsMap[iconName()] = aPixMap;
 248     return aPixMap;
 249   }
 250   return Handle(Image_AlienPixMap)();
 251 }
 252
 253 void SketcherPrs_SymbolPrs::ClearSelected()
 254 {
 255   Handle( Prs3d_Presentation ) aSelectionPrs = GetSelectPresentation( NULL );
 256   if( !aSelectionPrs.IsNull() ) {
 257     aSelectionPrs->Clear();
 258   }
 259 }
 260
 261 void SketcherPrs_SymbolPrs::prepareAspect()
 262 {
 263   if (myAspect.IsNull()) {
 264     myAspect = new Graphic3d_AspectMarker3d(icon());
 265   }
 266 }
 267
 268 void SketcherPrs_SymbolPrs::addLine(const Handle(Graphic3d_Group)& theGroup, std::string theAttrName) const
 269 {
 270   ObjectPtr aObj = SketcherPrs_Tools::getResult(myConstraint, theAttrName);
 271   std::shared_ptr<GeomAPI_Shape> aLine = SketcherPrs_Tools::getShape(aObj);
 272   if (aLine.get() == NULL)
 273     return;
 274   std::shared_ptr<GeomAPI_Edge> aEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aLine));
 275
 276   std::shared_ptr<GeomAPI_Pnt> aPnt1 = aEdge->firstPoint();
 277   std::shared_ptr<GeomAPI_Pnt> aPnt2 = aEdge->lastPoint();
 278
 279   Handle(Graphic3d_ArrayOfSegments) aLines = new Graphic3d_ArrayOfSegments(2, 1);
 280   aLines->AddVertex(aPnt1->impl<gp_Pnt>());
 281   aLines->AddVertex(aPnt2->impl<gp_Pnt>());
 282   theGroup->AddPrimitiveArray(aLines);
 283 }
 284
 285 void SketcherPrs_SymbolPrs::HilightSelected(const Handle(PrsMgr_PresentationManager3d)& thePM,
 286                                            const SelectMgr_SequenceOfOwner& theOwners)
 287 {
 288
 289   Handle( Prs3d_Presentation ) aSelectionPrs = GetSelectPresentation( thePM );
 290   aSelectionPrs->Clear();
 291   drawLines(aSelectionPrs, Quantity_NOC_WHITE);
 292
 293   aSelectionPrs->SetDisplayPriority(9);
 294   aSelectionPrs->Display();
 295   thePM->Highlight(this);
 296 }
 297
 298 void SketcherPrs_SymbolPrs::HilightOwnerWithColor(const Handle(PrsMgr_PresentationManager3d)& thePM,
 299                                                  const Quantity_NameOfColor theColor, const Handle(SelectMgr_EntityOwner)& theOwner)
 300 {
 301   thePM->Color(this, theColor);
 302
 303   Handle( Prs3d_Presentation ) aHilightPrs = GetHilightPresentation( thePM );
 304   aHilightPrs->Clear();
 305   drawLines(aHilightPrs, theColor);
 306
 307   if (thePM->IsImmediateModeOn())
 308     thePM->AddToImmediateList(aHilightPrs);
 309 }
 310
 311 void SketcherPrs_SymbolPrs::Compute(const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
 312                                    const Handle(Prs3d_Presentation)& thePresentation,
 313                                    const Standard_Integer theMode)
 314 {
 315   prepareAspect();
 316
 317   Handle(AIS_InteractiveContext) aCtx = GetContext();
 318   Handle(OpenGl_GraphicDriver) aDriver = Handle(OpenGl_GraphicDriver)::DownCast(aCtx->CurrentViewer()->Driver());
 319   if (!aDriver.IsNull()) {
 320     // register the custom element factory function
 321     aDriver->UserDrawCallback() = SymbolPrsCallBack;
 322   }
 323
 324   if (!updatePoints(20))
 325     return;
 326
 327   int aNbVertex = myPntArray->VertexNumber();
 328   if (myOwner.IsNull()) {
 329     myOwner = new SelectMgr_EntityOwner(this);
 330     for (int i = 1; i <= aNbVertex; i++) {
 331       Handle(SketcherPrs_SensitivePoint) aSP = new SketcherPrs_SensitivePoint(myOwner, myPntArray, i);
 332       mySPoints.Append(aSP);
 333     }
 334   }
 335
 336   Handle(Graphic3d_Group) aGroup = Prs3d_Root::NewGroup(thePresentation);
 337   aGroup->SetPrimitivesAspect(myAspect);
 338
 339   Graphic3d_BndBox4f& aBnd = aGroup->ChangeBoundingBox();
 340   gp_Pnt aVert;
 341   aBnd.Clear();
 342   for (int i = 1; i <= myPntArray->ItemNumber(); i++) {
 343     aVert = myPntArray->Vertice(i);
 344     aBnd.Add (Graphic3d_Vec4((float)aVert.X(), (float)aVert.Y(), (float)aVert.Z(), 1.0f));
 345   }
 346
 347   aGroup->UserDraw(this, true);
 348   //aGroup->AddPrimitiveArray(myPntArray);
 349 }
 350
 351
 352
 353 void SketcherPrs_SymbolPrs::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
 354                                             const Standard_Integer aMode)
 355 {
 356   ClearSelected();
 357   for (int i = 1; i <= mySPoints.Length(); i++)
 358     aSelection->Add(mySPoints.Value(i));
 359 }
 360
 361
 362 void SketcherPrs_SymbolPrs::Render(const Handle(OpenGl_Workspace)& theWorkspace) const
 363 {
 364   const OpenGl_AspectMarker* anAspectMarker = theWorkspace->AspectMarker(Standard_True);
 365   const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
 366   Handle(OpenGl_View) aView = theWorkspace->ActiveView();
 367
 368   double aScale = aView->Camera()->Scale();
 369   if (!updatePoints(MyDist * aScale))
 370     return;
 371
 372   Handle(Graphic3d_Buffer) aAttribs = myPntArray->Attributes();
 373
 374   if (myVboAttribs.IsNull()) {
 375     myVboAttribs = new SketcherPrs_VertexBuffer(*aAttribs);
 376   }
 377
 378   if (!myVboAttribs->init(aCtx, 0, aAttribs->NbElements, aAttribs->Data(), GL_NONE, aAttribs->Stride)) {
 379     myVboAttribs->Release (aCtx.operator->());
 380     myVboAttribs.Nullify();
 381     return;
 382   }
 383
 384   Handle(OpenGl_Texture) aTextureBack = theWorkspace->DisableTexture();
 385
 386   const Handle(OpenGl_PointSprite)& aSpriteNorm = anAspectMarker->SpriteRes(aCtx);
 387
 388   if (!aSpriteNorm.IsNull() && !aSpriteNorm->IsDisplayList()) {
 389     const bool toHilight = (theWorkspace->NamedStatus & OPENGL_NS_HIGHLIGHT) != 0;
 390     const Handle(OpenGl_PointSprite)& aSprite = (toHilight && anAspectMarker->SpriteHighlightRes(aCtx)->IsValid())
 391                                               ? anAspectMarker->SpriteHighlightRes(aCtx)
 392                                               : aSpriteNorm;
 393     theWorkspace->EnableTexture (aSprite);
 394     aCtx->ShaderManager()->BindProgram(anAspectMarker, aSprite, Standard_False, Standard_False, anAspectMarker->ShaderProgramRes(aCtx));
 395     const TEL_COLOUR* aLineColor  =  &anAspectMarker->Color();
 396     if (theWorkspace->NamedStatus & OPENGL_NS_HIGHLIGHT)
 397       aLineColor = theWorkspace->HighlightColor;
 398
 399     aCtx->SetColor4fv(*(const OpenGl_Vec4* )(aLineColor->rgb));
 400
 401
 402     myVboAttribs->BindAllAttributes(aCtx);
 403     // Textured markers will be drawn with the point sprites
 404     aCtx->SetPointSize (anAspectMarker->MarkerSize());
 405     aCtx->core11fwd->glEnable (GL_ALPHA_TEST);
 406     aCtx->core11fwd->glAlphaFunc (GL_GEQUAL, 0.1f);
 407
 408     aCtx->core11fwd->glEnable (GL_BLEND);
 409     aCtx->core11fwd->glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 410
 411     aCtx->core11fwd->glDrawArrays (0, 0, myVboAttribs->GetElemsNb());
 412
 413     aCtx->core11fwd->glDisable (GL_BLEND);
 414     aCtx->core11fwd->glDisable (GL_ALPHA_TEST);
 415     aCtx->SetPointSize (1.0f);
 416   }
 417   theWorkspace->EnableTexture (aTextureBack);
 418   aCtx->BindProgram (NULL);
 419
 420   // Update selection position
 421   GetContext()->RecomputeSelectionOnly(this);
 422 }
 423
 424
 425 void SketcherPrs_SymbolPrs::Release (OpenGl_Context* theContext)
 426 {
 427   if (!myVboAttribs.IsNull()) {
 428     if (theContext) {
 429       theContext->DelayedRelease (myVboAttribs);
 430     }
 431     myVboAttribs.Nullify();
 432   }
 433 }
 434