0024437: Visualization - silhouette edges based on OpenGL
[occt.git] / src / OpenGl / OpenGl_PrimitiveArray.cxx
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b311480e 1// Created on: 2011-07-13
2// Created by: Sergey ZERCHANINOV
de75ed09 3// Copyright (c) 2011-2013 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.
b311480e 15
2166f0fa 16#include <OpenGl_AspectFace.hxx>
30f0ad28 17#include <OpenGl_Context.hxx>
2166f0fa 18#include <OpenGl_GraphicDriver.hxx>
30f0ad28 19#include <OpenGl_IndexBuffer.hxx>
a577aaab 20#include <OpenGl_PointSprite.hxx>
30f0ad28 21#include <OpenGl_PrimitiveArray.hxx>
cc8cbabe 22#include <OpenGl_Sampler.hxx>
30f0ad28 23#include <OpenGl_ShaderManager.hxx>
24#include <OpenGl_ShaderProgram.hxx>
2166f0fa 25#include <OpenGl_Structure.hxx>
7d3e64ef 26#include <OpenGl_VertexBufferCompat.hxx>
6ef0d6f1 27#include <OpenGl_View.hxx>
bf75be98 28#include <OpenGl_Workspace.hxx>
6c6aadb1 29#include <Graphic3d_TextureParams.hxx>
e99a2f7c 30#include <NCollection_AlignedAllocator.hxx>
2166f0fa 31
30f0ad28 32namespace
33{
871fa103 34 //! Convert data type to GL info
35 inline GLenum toGlDataType (const Graphic3d_TypeOfData theType,
36 GLint& theNbComp)
37 {
38 switch (theType)
39 {
40 case Graphic3d_TOD_USHORT:
41 theNbComp = 1;
42 return GL_UNSIGNED_SHORT;
43 case Graphic3d_TOD_UINT:
44 theNbComp = 1;
45 return GL_UNSIGNED_INT;
46 case Graphic3d_TOD_VEC2:
47 theNbComp = 2;
48 return GL_FLOAT;
49 case Graphic3d_TOD_VEC3:
50 theNbComp = 3;
51 return GL_FLOAT;
52 case Graphic3d_TOD_VEC4:
53 theNbComp = 4;
54 return GL_FLOAT;
55 case Graphic3d_TOD_VEC4UB:
56 theNbComp = 4;
57 return GL_UNSIGNED_BYTE;
4a535d3f 58 case Graphic3d_TOD_FLOAT:
59 theNbComp = 1;
60 return GL_FLOAT;
871fa103 61 }
62 theNbComp = 0;
63 return GL_NONE;
64 }
65
30f0ad28 66}
67
871fa103 68//! Auxiliary template for VBO with interleaved attributes.
7d3e64ef 69template<class TheBaseClass, int NbAttributes>
70class OpenGl_VertexBufferT : public TheBaseClass
7fd59977 71{
871fa103 72public:
73
871fa103 74 //! Create uninitialized VBO.
75 OpenGl_VertexBufferT (const Graphic3d_Buffer& theAttribs)
da87ddc3 76 : Stride (theAttribs.IsInterleaved() ? theAttribs.Stride : 0)
871fa103 77 {
78 memcpy (Attribs, theAttribs.AttributesArray(), sizeof(Graphic3d_Attribute) * NbAttributes);
79 }
80
81 virtual bool HasColorAttribute() const
82 {
83 for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
84 {
85 const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
86 if (anAttrib.Id == Graphic3d_TOA_COLOR)
87 {
88 return true;
89 }
90 }
91 return false;
92 }
93
7d3e64ef 94 virtual bool HasNormalAttribute() const
95 {
96 for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
97 {
98 const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
99 if (anAttrib.Id == Graphic3d_TOA_NORM)
100 {
101 return true;
102 }
103 }
104 return false;
105 }
106
107 virtual void BindPositionAttribute (const Handle(OpenGl_Context)& theGlCtx) const
871fa103 108 {
7d3e64ef 109 if (!TheBaseClass::IsValid())
871fa103 110 {
111 return;
112 }
113
7d3e64ef 114 TheBaseClass::Bind (theGlCtx);
871fa103 115 GLint aNbComp;
7d3e64ef 116 const GLubyte* anOffset = TheBaseClass::myOffset;
da87ddc3 117 const Standard_Size aMuliplier = Stride != 0 ? 1 : TheBaseClass::myElemsNb;
871fa103 118 for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
119 {
120 const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
121 const GLenum aDataType = toGlDataType (anAttrib.DataType, aNbComp);
34253146 122 if (anAttrib.Id == Graphic3d_TOA_POS
123 && aDataType != GL_NONE)
871fa103 124 {
7d3e64ef 125 TheBaseClass::bindAttribute (theGlCtx, Graphic3d_TOA_POS, aNbComp, aDataType, Stride, anOffset);
871fa103 126 break;
127 }
128
da87ddc3 129 anOffset += aMuliplier * Graphic3d_Attribute::Stride (anAttrib.DataType);
871fa103 130 }
131 }
132
7d3e64ef 133 virtual void BindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const
871fa103 134 {
7d3e64ef 135 if (!TheBaseClass::IsValid())
871fa103 136 {
137 return;
138 }
139
7d3e64ef 140 TheBaseClass::Bind (theGlCtx);
871fa103 141 GLint aNbComp;
7d3e64ef 142 const GLubyte* anOffset = TheBaseClass::myOffset;
da87ddc3 143 const Standard_Size aMuliplier = Stride != 0 ? 1 : TheBaseClass::myElemsNb;
871fa103 144 for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
145 {
146 const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
147 const GLenum aDataType = toGlDataType (anAttrib.DataType, aNbComp);
34253146 148 if (aDataType != GL_NONE)
871fa103 149 {
34253146 150 TheBaseClass::bindAttribute (theGlCtx, anAttrib.Id, aNbComp, aDataType, Stride, anOffset);
871fa103 151 }
da87ddc3 152 anOffset += aMuliplier * Graphic3d_Attribute::Stride (anAttrib.DataType);
871fa103 153 }
154 }
155
7d3e64ef 156 virtual void UnbindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const
871fa103 157 {
7d3e64ef 158 if (!TheBaseClass::IsValid())
871fa103 159 {
160 return;
161 }
7d3e64ef 162 TheBaseClass::Unbind (theGlCtx);
871fa103 163
164 for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
165 {
166 const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
7d3e64ef 167 TheBaseClass::unbindAttribute (theGlCtx, anAttrib.Id);
871fa103 168 }
169 }
170
34253146 171private:
871fa103 172
173 Graphic3d_Attribute Attribs[NbAttributes];
174 Standard_Integer Stride;
175
176};
7fd59977 177
2166f0fa
SK
178// =======================================================================
179// function : clearMemoryGL
180// purpose :
181// =======================================================================
5e27df78 182void OpenGl_PrimitiveArray::clearMemoryGL (const Handle(OpenGl_Context)& theGlCtx) const
7fd59977 183{
871fa103 184 if (!myVboIndices.IsNull())
2166f0fa 185 {
871fa103 186 myVboIndices->Release (theGlCtx.operator->());
187 myVboIndices.Nullify();
188 }
189 if (!myVboAttribs.IsNull())
190 {
191 myVboAttribs->Release (theGlCtx.operator->());
192 myVboAttribs.Nullify();
2166f0fa 193 }
7fd59977 194}
195
2166f0fa 196// =======================================================================
7d3e64ef 197// function : initNormalVbo
2166f0fa
SK
198// purpose :
199// =======================================================================
7d3e64ef 200Standard_Boolean OpenGl_PrimitiveArray::initNormalVbo (const Handle(OpenGl_Context)& theCtx) const
7fd59977 201{
7d3e64ef 202 switch (myAttribs->NbAttributes)
2166f0fa 203 {
7d3e64ef 204 case 1: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 1> (*myAttribs); break;
205 case 2: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 2> (*myAttribs); break;
206 case 3: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 3> (*myAttribs); break;
207 case 4: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 4> (*myAttribs); break;
208 case 5: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 5> (*myAttribs); break;
209 case 6: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 6> (*myAttribs); break;
210 case 7: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 7> (*myAttribs); break;
211 case 8: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 8> (*myAttribs); break;
212 case 9: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 9> (*myAttribs); break;
213 case 10: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 10>(*myAttribs); break;
214 }
215
da87ddc3 216 const Standard_Boolean isAttribMutable = myAttribs->IsMutable();
217 const Standard_Boolean isAttribInterleaved = myAttribs->IsInterleaved();
218 if (myAttribs->NbElements != myAttribs->NbMaxElements()
219 && myIndices.IsNull()
220 && (!isAttribInterleaved || isAttribMutable))
221 {
222 throw Standard_ProgramError ("OpenGl_PrimitiveArray::buildVBO() - vertex attribute data with reserved size is not supported");
223 }
224
15669413 225 // specify data type as Byte and NbComponents as Stride, so that OpenGl_VertexBuffer::EstimatedDataSize() will return correct value
da87ddc3 226 const Standard_Integer aNbVertexes = (isAttribMutable || !isAttribInterleaved) ? myAttribs->NbMaxElements() : myAttribs->NbElements;
227 if (!myVboAttribs->init (theCtx, myAttribs->Stride, aNbVertexes, myAttribs->Data(), GL_UNSIGNED_BYTE, myAttribs->Stride))
7d3e64ef 228 {
da87ddc3 229 TCollection_ExtendedString aMsg = TCollection_ExtendedString("VBO creation for Primitive Array has failed for ") + aNbVertexes + " vertices. Out of memory?";
3b523c4c 230 theCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_PERFORMANCE, 0, GL_DEBUG_SEVERITY_LOW, aMsg);
7d3e64ef 231
232 clearMemoryGL (theCtx);
5e27df78 233 return Standard_False;
2166f0fa 234 }
7d3e64ef 235 else if (myIndices.IsNull())
236 {
da87ddc3 237 if (isAttribMutable && isAttribInterleaved)
238 {
239 // for mutable interlaced array we can change dynamically number of vertexes (they will be just skipped at the end of buffer);
240 // this doesn't matter in case if we have indexed array
241 myVboAttribs->SetElemsNb (myAttribs->NbElements);
242 }
7d3e64ef 243 return Standard_True;
244 }
7fd59977 245
da87ddc3 246 const Standard_Integer aNbIndexes = !myIndices->IsMutable() ? myIndices->NbElements : myIndices->NbMaxElements();
7d3e64ef 247 myVboIndices = new OpenGl_IndexBuffer();
248 bool isOk = false;
249 switch (myIndices->Stride)
250 {
251 case 2:
252 {
da87ddc3 253 isOk = myVboIndices->Init (theCtx, 1, aNbIndexes, reinterpret_cast<const GLushort*> (myIndices->Data()));
254 myVboIndices->SetElemsNb (myIndices->NbElements);
255 myIndices->Validate();
7d3e64ef 256 break;
257 }
258 case 4:
259 {
da87ddc3 260 isOk = myVboIndices->Init (theCtx, 1, aNbIndexes, reinterpret_cast<const GLuint*> (myIndices->Data()));
261 myVboIndices->SetElemsNb (myIndices->NbElements);
262 myIndices->Validate();
7d3e64ef 263 break;
264 }
265 default:
266 {
267 clearMemoryGL (theCtx);
268 return Standard_False;
269 }
270 }
271 if (!isOk)
2166f0fa 272 {
da87ddc3 273 TCollection_ExtendedString aMsg = TCollection_ExtendedString("VBO creation for Primitive Array has failed for ") + aNbIndexes + " indices. Out of memory?";
3b523c4c 274 theCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_PERFORMANCE, 0, GL_DEBUG_SEVERITY_LOW, aMsg);
7d3e64ef 275 clearMemoryGL (theCtx);
276 return Standard_False;
7fd59977 277 }
7d3e64ef 278 return Standard_True;
279}
871fa103 280
7d3e64ef 281// =======================================================================
282// function : buildVBO
283// purpose :
284// =======================================================================
285Standard_Boolean OpenGl_PrimitiveArray::buildVBO (const Handle(OpenGl_Context)& theCtx,
286 const Standard_Boolean theToKeepData) const
287{
288 bool isNormalMode = theCtx->ToUseVbo();
536d98e2 289 clearMemoryGL (theCtx);
7d3e64ef 290 if (myAttribs.IsNull()
291 || myAttribs->IsEmpty()
292 || myAttribs->NbElements < 1
293 || myAttribs->NbAttributes < 1
294 || myAttribs->NbAttributes > 10)
2166f0fa 295 {
7d3e64ef 296 // vertices should be always defined - others are optional
871fa103 297 return Standard_False;
7fd59977 298 }
871fa103 299
7d3e64ef 300 if (isNormalMode
301 && initNormalVbo (theCtx))
302 {
303 if (!theCtx->caps->keepArrayData
da87ddc3 304 && !theToKeepData
305 && !myAttribs->IsMutable())
7d3e64ef 306 {
307 myIndices.Nullify();
308 myAttribs.Nullify();
309 }
da87ddc3 310 else
311 {
312 myAttribs->Validate();
313 }
7d3e64ef 314 return Standard_True;
315 }
316
317 Handle(OpenGl_VertexBufferCompat) aVboAttribs;
318 switch (myAttribs->NbAttributes)
319 {
320 case 1: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 1> (*myAttribs); break;
321 case 2: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 2> (*myAttribs); break;
322 case 3: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 3> (*myAttribs); break;
323 case 4: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 4> (*myAttribs); break;
324 case 5: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 5> (*myAttribs); break;
325 case 6: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 6> (*myAttribs); break;
326 case 7: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 7> (*myAttribs); break;
327 case 8: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 8> (*myAttribs); break;
328 case 9: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 9> (*myAttribs); break;
329 case 10: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 10>(*myAttribs); break;
330 }
331 aVboAttribs->initLink (myAttribs, 0, myAttribs->NbElements, GL_NONE);
871fa103 332 if (!myIndices.IsNull())
2166f0fa 333 {
7d3e64ef 334 Handle(OpenGl_VertexBufferCompat) aVboIndices = new OpenGl_VertexBufferCompat();
871fa103 335 switch (myIndices->Stride)
5e27df78 336 {
871fa103 337 case 2:
338 {
7d3e64ef 339 aVboIndices->initLink (myIndices, 1, myIndices->NbElements, GL_UNSIGNED_SHORT);
871fa103 340 break;
341 }
342 case 4:
343 {
7d3e64ef 344 aVboIndices->initLink (myIndices, 1, myIndices->NbElements, GL_UNSIGNED_INT);
871fa103 345 break;
346 }
7d3e64ef 347 default:
348 {
349 return Standard_False;
350 }
5e27df78 351 }
7d3e64ef 352 myVboIndices = aVboIndices;
2166f0fa 353 }
7d3e64ef 354 myVboAttribs = aVboAttribs;
355 if (!theCtx->caps->keepArrayData
356 && !theToKeepData)
e276548b 357 {
7d3e64ef 358 // does not make sense for compatibility mode
359 //myIndices.Nullify();
360 //myAttribs.Nullify();
e276548b 361 }
7d3e64ef 362
2166f0fa 363 return Standard_True;
7fd59977 364}
365
da87ddc3 366// =======================================================================
367// function : updateVBO
368// purpose :
369// =======================================================================
370void OpenGl_PrimitiveArray::updateVBO (const Handle(OpenGl_Context)& theCtx) const
371{
372 if (!myAttribs.IsNull())
373 {
374 Graphic3d_BufferRange aRange = myAttribs->InvalidatedRange();
375 if (!aRange.IsEmpty()
376 && myVboAttribs->IsValid()
377 && !myVboAttribs->IsVirtual())
378 {
379 myVboAttribs->Bind (theCtx);
380 theCtx->core15fwd->glBufferSubData (myVboAttribs->GetTarget(),
381 aRange.Start,
382 aRange.Length,
383 myAttribs->Data() + aRange.Start);
384 myVboAttribs->Unbind (theCtx);
385 if (myAttribs->IsInterleaved())
386 {
387 myVboAttribs->SetElemsNb (myAttribs->NbElements);
388 }
389 }
390 myAttribs->Validate();
391 }
392 if (!myIndices.IsNull())
393 {
394 Graphic3d_BufferRange aRange = myIndices->InvalidatedRange();
395 if (!aRange.IsEmpty()
396 && myVboIndices->IsValid()
397 && !myVboIndices->IsVirtual())
398 {
399 myVboIndices->Bind (theCtx);
400 theCtx->core15fwd->glBufferSubData (myVboIndices->GetTarget(),
401 aRange.Start,
402 aRange.Length,
403 myIndices->Data() + aRange.Start);
404 myVboIndices->Unbind (theCtx);
405 myVboIndices->SetElemsNb (myIndices->NbElements);
406 }
407 myIndices->Validate();
408 }
409}
410
2166f0fa 411// =======================================================================
7d3e64ef 412// function : drawArray
2166f0fa
SK
413// purpose :
414// =======================================================================
7d3e64ef 415void OpenGl_PrimitiveArray::drawArray (const Handle(OpenGl_Workspace)& theWorkspace,
8625ef7e 416 const Graphic3d_Vec4* theFaceColors,
417 const Standard_Boolean theHasVertColor) const
7fd59977 418{
7d3e64ef 419 if (myVboAttribs.IsNull())
2166f0fa 420 {
ca3c13d1 421 #if !defined(GL_ES_VERSION_2_0)
7d3e64ef 422 if (myDrawMode == GL_POINTS)
423 {
424 // extreme compatibility mode - without sprites but with markers
425 drawMarkers (theWorkspace);
426 }
ca3c13d1 427 #endif
7d3e64ef 428 return;
7fd59977 429 }
430
8e0a2b19 431 const Handle(OpenGl_Context)& aGlContext = theWorkspace->GetGlContext();
432 const bool toHilight = theWorkspace->ToHighlight();
433 const GLenum aDrawMode = !aGlContext->ActiveProgram().IsNull()
434 && aGlContext->ActiveProgram()->HasTessellationStage()
435 ? GL_PATCHES
436 : myDrawMode;
7d3e64ef 437 myVboAttribs->BindAllAttributes (aGlContext);
8625ef7e 438 if (theHasVertColor && toHilight)
2166f0fa 439 {
8625ef7e 440 // disable per-vertex color
441 OpenGl_VertexBuffer::unbindAttribute (aGlContext, Graphic3d_TOA_COLOR);
7d3e64ef 442 }
443 if (!myVboIndices.IsNull())
444 {
445 myVboIndices->Bind (aGlContext);
446 GLubyte* anOffset = myVboIndices->GetDataOffset();
447 if (!myBounds.IsNull())
2166f0fa 448 {
7d3e64ef 449 // draw primitives by vertex count with the indices
450 const size_t aStride = myVboIndices->GetDataType() == GL_UNSIGNED_SHORT ? sizeof(unsigned short) : sizeof(unsigned int);
451 for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
2166f0fa 452 {
7d3e64ef 453 const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
8625ef7e 454 if (theFaceColors != NULL) aGlContext->SetColor4fv (theFaceColors[aGroupIter]);
8e0a2b19 455 glDrawElements (aDrawMode, aNbElemsInGroup, myVboIndices->GetDataType(), anOffset);
7d3e64ef 456 anOffset += aStride * aNbElemsInGroup;
762aacae 457 }
bf75be98 458 }
2166f0fa
SK
459 else
460 {
7d3e64ef 461 // draw one (or sequential) primitive by the indices
8e0a2b19 462 glDrawElements (aDrawMode, myVboIndices->GetElemsNb(), myVboIndices->GetDataType(), anOffset);
5e27df78 463 }
7d3e64ef 464 myVboIndices->Unbind (aGlContext);
7fd59977 465 }
7d3e64ef 466 else if (!myBounds.IsNull())
871fa103 467 {
7d3e64ef 468 GLint aFirstElem = 0;
469 for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
470 {
471 const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
8625ef7e 472 if (theFaceColors != NULL) aGlContext->SetColor4fv (theFaceColors[aGroupIter]);
8e0a2b19 473 glDrawArrays (aDrawMode, aFirstElem, aNbElemsInGroup);
7d3e64ef 474 aFirstElem += aNbElemsInGroup;
475 }
871fa103 476 }
7d3e64ef 477 else
2166f0fa 478 {
7d3e64ef 479 if (myDrawMode == GL_POINTS)
480 {
481 drawMarkers (theWorkspace);
482 }
483 else
484 {
8e0a2b19 485 glDrawArrays (aDrawMode, 0, myVboAttribs->GetElemsNb());
7d3e64ef 486 }
2166f0fa
SK
487 }
488
7d3e64ef 489 // bind with 0
490 myVboAttribs->UnbindAllAttributes (aGlContext);
7fd59977 491}
492
2166f0fa 493// =======================================================================
7d3e64ef 494// function : drawEdges
2166f0fa
SK
495// purpose :
496// =======================================================================
b6472664 497void OpenGl_PrimitiveArray::drawEdges (const OpenGl_Vec4& theEdgeColour,
2166f0fa 498 const Handle(OpenGl_Workspace)& theWorkspace) const
7fd59977 499{
65360da3 500 const Handle(OpenGl_Context)& aGlContext = theWorkspace->GetGlContext();
7d3e64ef 501 if (myVboAttribs.IsNull())
502 {
503 return;
504 }
505
f9ba5c4d 506 const OpenGl_AspectLine* anAspectLineOld = theWorkspace->SetAspectLine (theWorkspace->AspectFace()->AspectEdge());
507 const OpenGl_AspectLine* anAspect = theWorkspace->ApplyAspectLine();
ca3c13d1 508#if !defined(GL_ES_VERSION_2_0)
2a332745 509 const Standard_Integer aPolyModeOld = aGlContext->SetPolygonMode (GL_LINE);
ca3c13d1 510#endif
7d3e64ef 511
4e1523ef 512 if (aGlContext->core20fwd != NULL)
7d3e64ef 513 {
c40eb6b9 514 aGlContext->ShaderManager()->BindLineProgram (Handle(OpenGl_TextureSet)(), anAspect->Aspect()->Type(),
515 Graphic3d_TOSM_UNLIT, Graphic3d_AlphaMode_Opaque, Standard_False,
b6472664 516 anAspect->ShaderProgramRes (aGlContext));
2166f0fa 517 }
8e0a2b19 518 const GLenum aDrawMode = !aGlContext->ActiveProgram().IsNull()
519 && aGlContext->ActiveProgram()->HasTessellationStage()
520 ? GL_PATCHES
521 : myDrawMode;
dd1ae9df 522#if !defined(GL_ES_VERSION_2_0)
523 if (aGlContext->ActiveProgram().IsNull()
524 && aGlContext->core11 != NULL)
525 {
526 glDisable (GL_LIGHTING);
527 }
528#endif
7fd59977 529
5e27df78 530 /// OCC22236 NOTE: draw edges for all situations:
871fa103 531 /// 1) draw elements with GL_LINE style as edges from myPArray->bufferVBO[VBOEdges] indices array
532 /// 2) draw elements from vertex array, when bounds defines count of primitive's vertices.
5e27df78 533 /// 3) draw primitive's edges by vertexes if no edges and bounds array is specified
7d3e64ef 534 myVboAttribs->BindPositionAttribute (aGlContext);
ac116c22 535
b6472664 536 aGlContext->SetColor4fv (theEdgeColour);
537 aGlContext->SetTypeOfLine (anAspect->Aspect()->Type());
538 aGlContext->SetLineWidth (anAspect->Aspect()->Width());
ac116c22 539
7d3e64ef 540 if (!myVboIndices.IsNull())
bf75be98 541 {
7d3e64ef 542 myVboIndices->Bind (aGlContext);
543 GLubyte* anOffset = myVboIndices->GetDataOffset();
2166f0fa 544
7d3e64ef 545 // draw primitives by vertex count with the indices
546 if (!myBounds.IsNull())
2166f0fa 547 {
7d3e64ef 548 const size_t aStride = myVboIndices->GetDataType() == GL_UNSIGNED_SHORT ? sizeof(unsigned short) : sizeof(unsigned int);
871fa103 549 for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
2166f0fa 550 {
871fa103 551 const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
8e0a2b19 552 glDrawElements (aDrawMode, aNbElemsInGroup, myVboIndices->GetDataType(), anOffset);
7d3e64ef 553 anOffset += aStride * aNbElemsInGroup;
7fd59977 554 }
555 }
7d3e64ef 556 // draw one (or sequential) primitive by the indices
2166f0fa
SK
557 else
558 {
8e0a2b19 559 glDrawElements (aDrawMode, myVboIndices->GetElemsNb(), myVboIndices->GetDataType(), anOffset);
762aacae 560 }
7d3e64ef 561 myVboIndices->Unbind (aGlContext);
2166f0fa 562 }
7d3e64ef 563 else if (!myBounds.IsNull())
2166f0fa 564 {
7d3e64ef 565 GLint aFirstElem = 0;
566 for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
2166f0fa 567 {
7d3e64ef 568 const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
8e0a2b19 569 glDrawArrays (aDrawMode, aFirstElem, aNbElemsInGroup);
7d3e64ef 570 aFirstElem += aNbElemsInGroup;
7fd59977 571 }
2166f0fa 572 }
7d3e64ef 573 else
574 {
8e0a2b19 575 glDrawArrays (aDrawMode, 0, !myVboAttribs.IsNull() ? myVboAttribs->GetElemsNb() : myAttribs->NbElements);
7d3e64ef 576 }
577
578 // unbind buffers
579 myVboAttribs->UnbindAttribute (aGlContext, Graphic3d_TOA_POS);
2166f0fa 580
8625ef7e 581 // restore line context
8625ef7e 582 theWorkspace->SetAspectLine (anAspectLineOld);
2a332745 583#if !defined(GL_ES_VERSION_2_0)
584 aGlContext->SetPolygonMode (aPolyModeOld);
585#endif
7fd59977 586}
587
a577aaab 588// =======================================================================
7d3e64ef 589// function : drawMarkers
a577aaab 590// purpose :
591// =======================================================================
7d3e64ef 592void OpenGl_PrimitiveArray::drawMarkers (const Handle(OpenGl_Workspace)& theWorkspace) const
a577aaab 593{
8e0a2b19 594 const OpenGl_AspectMarker* anAspectMarker = theWorkspace->ApplyAspectMarker();
595 const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
596 const GLenum aDrawMode = !aCtx->ActiveProgram().IsNull()
597 && aCtx->ActiveProgram()->HasTessellationStage()
598 ? GL_PATCHES
599 : myDrawMode;
600
cc8cbabe 601 const Handle(OpenGl_TextureSet)& aSpriteNormRes = anAspectMarker->SpriteRes (aCtx);
602 const OpenGl_PointSprite* aSpriteNorm = !aSpriteNormRes.IsNull() ? dynamic_cast<const OpenGl_PointSprite*> (aSpriteNormRes->First().get()) : NULL;
603 if (aSpriteNorm != NULL
604 && !aSpriteNorm->IsDisplayList())
a577aaab 605 {
606 // Textured markers will be drawn with the point sprites
8625ef7e 607 aCtx->SetPointSize (anAspectMarker->MarkerSize());
fd59283a 608 aCtx->SetPointSpriteOrigin();
ca3c13d1 609 #if !defined(GL_ES_VERSION_2_0)
4e1523ef 610 if (aCtx->core11 != NULL)
611 {
612 aCtx->core11fwd->glEnable (GL_ALPHA_TEST);
613 aCtx->core11fwd->glAlphaFunc (GL_GEQUAL, 0.1f);
614 }
ca3c13d1 615 #endif
a577aaab 616
8625ef7e 617 aCtx->core11fwd->glEnable (GL_BLEND);
618 aCtx->core11fwd->glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
a577aaab 619
8e0a2b19 620 aCtx->core11fwd->glDrawArrays (aDrawMode, 0, !myVboAttribs.IsNull() ? myVboAttribs->GetElemsNb() : myAttribs->NbElements);
a577aaab 621
8625ef7e 622 aCtx->core11fwd->glDisable (GL_BLEND);
ca3c13d1 623 #if !defined(GL_ES_VERSION_2_0)
4e1523ef 624 if (aCtx->core11 != NULL)
625 {
c40eb6b9 626 if (aCtx->ShaderManager()->MaterialState().AlphaCutoff() >= ShortRealLast())
627 {
628 aCtx->core11fwd->glDisable (GL_ALPHA_TEST);
629 }
630 else
631 {
632 aCtx->core11fwd->glAlphaFunc (GL_GEQUAL, aCtx->ShaderManager()->MaterialState().AlphaCutoff());
633 }
4e1523ef 634 }
ca3c13d1 635 #endif
8625ef7e 636 aCtx->SetPointSize (1.0f);
a577aaab 637 return;
638 }
b6472664 639 else if (anAspectMarker->Aspect()->Type() == Aspect_TOM_POINT)
a577aaab 640 {
8625ef7e 641 aCtx->SetPointSize (anAspectMarker->MarkerSize());
8e0a2b19 642 aCtx->core11fwd->glDrawArrays (aDrawMode, 0, !myVboAttribs.IsNull() ? myVboAttribs->GetElemsNb() : myAttribs->NbElements);
8625ef7e 643 aCtx->SetPointSize (1.0f);
a577aaab 644 }
ca3c13d1 645#if !defined(GL_ES_VERSION_2_0)
8625ef7e 646 // Textured markers will be drawn with the glBitmap
b6472664 647 else if (anAspectMarker->Aspect()->Type() != Aspect_TOM_POINT
cc8cbabe 648 && aSpriteNorm != NULL)
a577aaab 649 {
871fa103 650 /**if (!isHilight && (myPArray->vcolours != NULL))
a577aaab 651 {
871fa103 652 for (Standard_Integer anIter = 0; anIter < myAttribs->NbElements; anIter++)
a577aaab 653 {
871fa103 654 glColor4ubv (myPArray->vcolours[anIter].GetData());
655 glRasterPos3fv (myAttribs->Value<Graphic3d_Vec3> (anIter).GetData());
a577aaab 656 aSpriteNorm->DrawBitmap (theWorkspace->GetGlContext());
657 }
658 }
871fa103 659 else*/
a577aaab 660 {
871fa103 661 for (Standard_Integer anIter = 0; anIter < myAttribs->NbElements; anIter++)
a577aaab 662 {
8625ef7e 663 aCtx->core11->glRasterPos3fv (myAttribs->Value<Graphic3d_Vec3> (anIter).GetData());
a577aaab 664 aSpriteNorm->DrawBitmap (theWorkspace->GetGlContext());
665 }
666 }
667 }
ca3c13d1 668#endif
a577aaab 669}
670
e1c659da 671// =======================================================================
672// function : OpenGl_PrimitiveArray
673// purpose :
674// =======================================================================
675OpenGl_PrimitiveArray::OpenGl_PrimitiveArray (const OpenGl_GraphicDriver* theDriver)
676
677: myDrawMode (DRAW_MODE_NONE),
8e0a2b19 678 myIsFillType(Standard_False),
e1c659da 679 myIsVboInit (Standard_False)
680{
681 if (theDriver != NULL)
682 {
683 myUID = theDriver->GetNextPrimitiveArrayUID();
684 }
685}
686
2166f0fa
SK
687// =======================================================================
688// function : OpenGl_PrimitiveArray
689// purpose :
690// =======================================================================
8d3f219f 691OpenGl_PrimitiveArray::OpenGl_PrimitiveArray (const OpenGl_GraphicDriver* theDriver,
692 const Graphic3d_TypeOfPrimitiveArray theType,
871fa103 693 const Handle(Graphic3d_IndexBuffer)& theIndices,
694 const Handle(Graphic3d_Buffer)& theAttribs,
695 const Handle(Graphic3d_BoundBuffer)& theBounds)
8d3f219f 696
871fa103 697: myIndices (theIndices),
698 myAttribs (theAttribs),
699 myBounds (theBounds),
700 myDrawMode (DRAW_MODE_NONE),
8e0a2b19 701 myIsFillType(Standard_False),
c827ea3a 702 myIsVboInit (Standard_False)
2166f0fa 703{
871fa103 704 if (!myIndices.IsNull()
705 && myIndices->NbElements < 1)
706 {
707 // dummy index buffer?
708 myIndices.Nullify();
709 }
871fa103 710
e99a2f7c 711 if (theDriver != NULL)
712 {
713 myUID = theDriver->GetNextPrimitiveArrayUID();
714 #if defined (GL_ES_VERSION_2_0)
715 const Handle(OpenGl_Context)& aCtx = theDriver->GetSharedContext();
716 if (!aCtx.IsNull())
717 {
718 processIndices (aCtx);
719 }
720 #endif
721 }
722
a79f67f8 723 setDrawMode (theType);
2166f0fa
SK
724}
725
726// =======================================================================
727// function : ~OpenGl_PrimitiveArray
728// purpose :
729// =======================================================================
5e27df78 730OpenGl_PrimitiveArray::~OpenGl_PrimitiveArray()
2166f0fa 731{
5e27df78 732 //
733}
2166f0fa 734
5e27df78 735// =======================================================================
736// function : Release
737// purpose :
738// =======================================================================
10b9c7df 739void OpenGl_PrimitiveArray::Release (OpenGl_Context* theContext)
5e27df78 740{
c827ea3a 741 myIsVboInit = Standard_False;
871fa103 742 if (!myVboIndices.IsNull())
2166f0fa 743 {
10b9c7df 744 if (theContext)
5e27df78 745 {
871fa103 746 theContext->DelayedRelease (myVboIndices);
747 }
748 myVboIndices.Nullify();
749 }
750 if (!myVboAttribs.IsNull())
751 {
10b9c7df 752 if (theContext)
871fa103 753 {
754 theContext->DelayedRelease (myVboAttribs);
5e27df78 755 }
871fa103 756 myVboAttribs.Nullify();
2166f0fa
SK
757 }
758}
759
760// =======================================================================
761// function : Render
762// purpose :
763// =======================================================================
764void OpenGl_PrimitiveArray::Render (const Handle(OpenGl_Workspace)& theWorkspace) const
765{
871fa103 766 if (myDrawMode == DRAW_MODE_NONE)
bf75be98 767 {
2166f0fa 768 return;
bf75be98 769 }
2166f0fa 770
f9ba5c4d 771 const OpenGl_AspectFace* anAspectFace = theWorkspace->ApplyAspectFace();
772 const OpenGl_AspectLine* anAspectLine = theWorkspace->ApplyAspectLine();
773 const OpenGl_AspectMarker* anAspectMarker = myDrawMode == GL_POINTS
774 ? theWorkspace->ApplyAspectMarker()
775 : theWorkspace->AspectMarker();
a577aaab 776
58655684 777 const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
2166f0fa 778
cc8cbabe 779 Handle(OpenGl_TextureSet) aTextureBack;
3a4a3962 780 bool toDrawArray = true;
2a332745 781 int toDrawInteriorEdges = 0; // 0 - no edges, 1 - glsl edges, 2 - polygonMode
6ef0d6f1 782 if (myIsFillType)
3a4a3962 783 {
784 toDrawArray = anAspectFace->Aspect()->InteriorStyle() != Aspect_IS_EMPTY;
2a332745 785 if (anAspectFace->Aspect()->ToDrawEdges())
786 {
787 toDrawInteriorEdges = 1;
788 toDrawArray = true;
789 #if !defined(GL_ES_VERSION_2_0)
790 if (anAspectFace->Aspect()->EdgeLineType() != Aspect_TOL_SOLID
791 || aCtx->hasGeometryStage == OpenGl_FeatureNotAvailable
792 || aCtx->caps->usePolygonMode)
793 {
794 toDrawInteriorEdges = 2;
795 if (anAspectFace->Aspect()->InteriorStyle() == Aspect_IS_EMPTY)
796 {
797 if (anAspectFace->Aspect()->EdgeLineType() != Aspect_TOL_SOLID)
798 {
799 toDrawArray = false;
800 }
801 else
802 {
803 aCtx->SetPolygonMode (GL_LINE);
804 }
805 }
806 }
807 #endif
808 }
3a4a3962 809 }
6ef0d6f1 810 else
8625ef7e 811 {
3a4a3962 812 if (myDrawMode == GL_POINTS)
813 {
6ef0d6f1 814 if (anAspectMarker->Aspect()->Type() == Aspect_TOM_EMPTY)
815 {
816 return;
817 }
3a4a3962 818 }
819 else
820 {
6ef0d6f1 821 if (anAspectLine->Aspect()->Type() == Aspect_TOL_EMPTY)
822 {
823 return;
824 }
825 }
826
827 // Temporarily disable environment mapping
828 aTextureBack = aCtx->BindTextures (Handle(OpenGl_TextureSet)());
829 }
830
831 // create VBOs on first render call
832 if (!myIsVboInit)
833 {
834 // compatibility - keep data to draw markers using display lists
835 Standard_Boolean toKeepData = Standard_False;
836 if (myDrawMode == GL_POINTS)
837 {
838 const Handle(OpenGl_TextureSet)& aSpriteNormRes = anAspectMarker->SpriteRes (aCtx);
839 const OpenGl_PointSprite* aSpriteNorm = !aSpriteNormRes.IsNull() ? dynamic_cast<const OpenGl_PointSprite*> (aSpriteNormRes->First().get()) : NULL;
840 toKeepData = aSpriteNorm != NULL
841 && aSpriteNorm->IsDisplayList();
3a4a3962 842 }
6ef0d6f1 843 #if defined (GL_ES_VERSION_2_0)
844 processIndices (aCtx);
845 #endif
846 buildVBO (aCtx, toKeepData);
847 myIsVboInit = Standard_True;
848 }
849 else if ((!myAttribs.IsNull()
850 && myAttribs->IsMutable())
851 || (!myIndices.IsNull()
852 && myIndices->IsMutable()))
853 {
854 updateVBO (aCtx);
8625ef7e 855 }
7d3e64ef 856
db5d29de 857 Graphic3d_TypeOfShadingModel aShadingModel = Graphic3d_TOSM_UNLIT;
3a4a3962 858 if (toDrawArray)
7d3e64ef 859 {
db5d29de 860 const bool hasColorAttrib = !myVboAttribs.IsNull()
861 && myVboAttribs->HasColorAttribute();
862 const bool toHilight = theWorkspace->ToHighlight();
863 const bool hasVertColor = hasColorAttrib && !toHilight;
864 const bool hasVertNorm = !myVboAttribs.IsNull() && myVboAttribs->HasNormalAttribute();
8613985b 865 switch (myDrawMode)
8625ef7e 866 {
8613985b 867 case GL_POINTS:
8625ef7e 868 {
db5d29de 869 aShadingModel = aCtx->ShaderManager()->ChooseMarkerShadingModel (anAspectFace->ShadingModel(), hasVertNorm);
cc8cbabe 870 const Handle(OpenGl_TextureSet)& aSpriteNormRes = anAspectMarker->SpriteRes (aCtx);
871 const OpenGl_PointSprite* aSpriteNorm = !aSpriteNormRes.IsNull() ? dynamic_cast<const OpenGl_PointSprite*> (aSpriteNormRes->First().get()) : NULL;
872 if (aSpriteNorm != NULL
873 && !aSpriteNorm->IsDisplayList())
8625ef7e 874 {
cc8cbabe 875 const Handle(OpenGl_TextureSet)& aSprite = toHilight && anAspectMarker->SpriteHighlightRes (aCtx)->First()->IsValid()
876 ? anAspectMarker->SpriteHighlightRes (aCtx)
877 : aSpriteNormRes;
878 aCtx->BindTextures (aSprite);
c40eb6b9 879 aCtx->ShaderManager()->BindMarkerProgram (aSprite, aShadingModel, Graphic3d_AlphaMode_Opaque, hasVertColor, anAspectMarker->ShaderProgramRes (aCtx));
8625ef7e 880 }
8613985b 881 else
8625ef7e 882 {
c40eb6b9 883 aCtx->ShaderManager()->BindMarkerProgram (Handle(OpenGl_TextureSet)(), aShadingModel, Graphic3d_AlphaMode_Opaque, hasVertColor, anAspectMarker->ShaderProgramRes (aCtx));
8625ef7e 884 }
8613985b 885 break;
886 }
887 case GL_LINES:
888 case GL_LINE_STRIP:
889 {
db5d29de 890 aShadingModel = aCtx->ShaderManager()->ChooseLineShadingModel (anAspectFace->ShadingModel(), hasVertNorm);
8613985b 891 aCtx->ShaderManager()->BindLineProgram (NULL,
dc89236f 892 anAspectLine->Aspect()->Type(),
893 aShadingModel,
c40eb6b9 894 Graphic3d_AlphaMode_Opaque,
8613985b 895 hasVertColor,
896 anAspectLine->ShaderProgramRes (aCtx));
897 break;
898 }
899 default:
900 {
db5d29de 901 aShadingModel = aCtx->ShaderManager()->ChooseFaceShadingModel (anAspectFace->ShadingModel(), hasVertNorm);
cc8cbabe 902 const Handle(OpenGl_TextureSet)& aTextures = aCtx->ActiveTextures();
cc8cbabe 903 const Standard_Boolean toEnableEnvMap = (!aTextures.IsNull() && (aTextures == theWorkspace->EnvironmentTexture()));
904 aCtx->ShaderManager()->BindFaceProgram (aTextures,
dc89236f 905 aShadingModel,
2a332745 906 aCtx->ShaderManager()->MaterialState().HasAlphaCutoff() ? Graphic3d_AlphaMode_Mask : Graphic3d_AlphaMode_Opaque,
907 toDrawInteriorEdges == 1 ? anAspectFace->Aspect()->InteriorStyle() : Aspect_IS_SOLID,
8613985b 908 hasVertColor,
909 toEnableEnvMap,
2a332745 910 toDrawInteriorEdges == 1,
8613985b 911 anAspectFace->ShaderProgramRes (aCtx));
2a332745 912 if (toDrawInteriorEdges == 1)
913 {
914 aCtx->ShaderManager()->PushInteriorState (aCtx->ActiveProgram(), anAspectFace->Aspect());
915 }
8613985b 916 break;
8625ef7e 917 }
918 }
919
8613985b 920 #if !defined(GL_ES_VERSION_2_0)
921 // manage FFP lighting
922 if (aCtx->ActiveProgram().IsNull()
923 && aCtx->core11 != NULL)
299e0ab9 924 {
dc89236f 925 if (aShadingModel == Graphic3d_TOSM_UNLIT)
8613985b 926 {
927 glDisable (GL_LIGHTING);
928 }
929 else
930 {
931 glEnable (GL_LIGHTING);
932 }
299e0ab9 933 }
8613985b 934 #endif
299e0ab9 935
cc8cbabe 936 if (!aCtx->ActiveTextures().IsNull()
937 && !aCtx->ActiveTextures()->IsEmpty()
938 && !aCtx->ActiveTextures()->First().IsNull()
79f4f036 939 && myDrawMode != GL_POINTS) // transformation is not supported within point sprites
940 {
cc8cbabe 941 aCtx->SetTextureMatrix (aCtx->ActiveTextures()->First()->Sampler()->Parameters());
79f4f036 942 }
943
6ef0d6f1 944 const Graphic3d_Vec4* aFaceColors = !myBounds.IsNull() && !toHilight && anAspectFace->Aspect()->InteriorStyle() != Aspect_IS_HIDDENLINE
945 ? myBounds->Colors
946 : NULL;
947 if (!myIsFillType)
f9ba5c4d 948 {
b6472664 949 const OpenGl_Vec4& aLineColor = myDrawMode == GL_POINTS ? theWorkspace->MarkerColor() : theWorkspace->LineColor();
950 aCtx->SetColor4fv (aLineColor);
6ef0d6f1 951 if (myDrawMode == GL_LINES
952 || myDrawMode == GL_LINE_STRIP)
953 {
954 aCtx->SetTypeOfLine (anAspectLine->Aspect()->Type());
955 aCtx->SetLineWidth (anAspectLine->Aspect()->Width());
956 }
957
958 drawArray (theWorkspace, aFaceColors, hasColorAttrib);
959 aCtx->BindTextures (aTextureBack);
960 return;
ac116c22 961 }
7d3e64ef 962
6ef0d6f1 963 const OpenGl_Vec4& anInteriorColor = theWorkspace->InteriorColor();
964 aCtx->SetColor4fv (anInteriorColor);
8625ef7e 965 drawArray (theWorkspace, aFaceColors, hasColorAttrib);
7d3e64ef 966
6ef0d6f1 967 // draw outline - only closed triangulation with defined vertex normals can be drawn in this way
968 if (anAspectFace->Aspect()->ToDrawSilhouette()
969 && aCtx->ToCullBackFaces()
970 && aCtx->ShaderManager()->BindOutlineProgram())
971 {
972 const Graphic3d_Vec2i aViewSize (aCtx->Viewport()[2], aCtx->Viewport()[3]);
973 const Standard_Integer aMin = aViewSize.minComp();
974 const GLfloat anEdgeWidth = (GLfloat )anAspectFace->Aspect()->EdgeWidth() * aCtx->LineWidthScale() / (GLfloat )aMin;
975 const GLfloat anOrthoScale = theWorkspace->View()->Camera()->IsOrthographic() ? (GLfloat )theWorkspace->View()->Camera()->Scale() : -1.0f;
976
977 const Handle(OpenGl_ShaderProgram)& anOutlineProgram = aCtx->ActiveProgram();
978 anOutlineProgram->SetUniform (aCtx, anOutlineProgram->GetStateLocation (OpenGl_OCCT_SILHOUETTE_THICKNESS), anEdgeWidth);
979 anOutlineProgram->SetUniform (aCtx, anOutlineProgram->GetStateLocation (OpenGl_OCCT_ORTHO_SCALE), anOrthoScale);
980 aCtx->SetColor4fv (anAspectFace->Aspect()->EdgeColorRGBA());
981
982 aCtx->core11fwd->glCullFace (GL_FRONT);
983 drawArray (theWorkspace, NULL, false);
984
985 aCtx->core11fwd->glCullFace (GL_BACK);
986 }
8625ef7e 987 }
6ef0d6f1 988
2a332745 989#if !defined(GL_ES_VERSION_2_0)
6ef0d6f1 990 // draw triangulation edges using Polygon Mode
991 if (toDrawInteriorEdges == 2)
7d3e64ef 992 {
2a332745 993 if (anAspectFace->Aspect()->InteriorStyle() == Aspect_IS_HOLLOW
994 && anAspectFace->Aspect()->EdgeLineType() == Aspect_TOL_SOLID)
995 {
996 aCtx->SetPolygonMode (GL_FILL);
997 }
998 else
30f0ad28 999 {
b6472664 1000 const OpenGl_Vec4& anEdgeColor = theWorkspace->EdgeColor();
7d3e64ef 1001 drawEdges (anEdgeColor, theWorkspace);
30f0ad28 1002 }
1003 }
2a332745 1004#endif
2166f0fa 1005}
a79f67f8 1006
1007// =======================================================================
1008// function : setDrawMode
1009// purpose :
1010// =======================================================================
1011void OpenGl_PrimitiveArray::setDrawMode (const Graphic3d_TypeOfPrimitiveArray theType)
1012{
1013 if (myAttribs.IsNull())
1014 {
1015 myDrawMode = DRAW_MODE_NONE;
8e0a2b19 1016 myIsFillType = false;
a79f67f8 1017 return;
1018 }
1019
1020 switch (theType)
1021 {
1022 case Graphic3d_TOPA_POINTS:
8e0a2b19 1023 myDrawMode = GL_POINTS;
1024 myIsFillType = false;
a79f67f8 1025 break;
1026 case Graphic3d_TOPA_SEGMENTS:
8e0a2b19 1027 myDrawMode = GL_LINES;
1028 myIsFillType = false;
1029 break;
1030 case Graphic3d_TOPA_POLYLINES:
1031 myDrawMode = GL_LINE_STRIP;
1032 myIsFillType = false;
a79f67f8 1033 break;
1034 case Graphic3d_TOPA_TRIANGLES:
8e0a2b19 1035 myDrawMode = GL_TRIANGLES;
1036 myIsFillType = true;
a79f67f8 1037 break;
1038 case Graphic3d_TOPA_TRIANGLESTRIPS:
8e0a2b19 1039 myDrawMode = GL_TRIANGLE_STRIP;
1040 myIsFillType = true;
a79f67f8 1041 break;
1042 case Graphic3d_TOPA_TRIANGLEFANS:
8e0a2b19 1043 myDrawMode = GL_TRIANGLE_FAN;
1044 myIsFillType = true;
a79f67f8 1045 break;
8e0a2b19 1046 //
1047 case Graphic3d_TOPA_LINES_ADJACENCY:
1048 myDrawMode = GL_LINES_ADJACENCY;
1049 myIsFillType = false;
a79f67f8 1050 break;
8e0a2b19 1051 case Graphic3d_TOPA_LINE_STRIP_ADJACENCY:
1052 myDrawMode = GL_LINE_STRIP_ADJACENCY;
1053 myIsFillType = false;
1054 break;
1055 case Graphic3d_TOPA_TRIANGLES_ADJACENCY:
1056 myDrawMode = GL_TRIANGLES_ADJACENCY;
1057 myIsFillType = true;
1058 break;
1059 case Graphic3d_TOPA_TRIANGLE_STRIP_ADJACENCY:
1060 myDrawMode = GL_TRIANGLE_STRIP_ADJACENCY;
1061 myIsFillType = true;
1062 break;
1063 //
1064 #if !defined(GL_ES_VERSION_2_0)
a79f67f8 1065 case Graphic3d_TOPA_QUADRANGLES:
8e0a2b19 1066 myDrawMode = GL_QUADS;
1067 myIsFillType = true;
a79f67f8 1068 break;
1069 case Graphic3d_TOPA_QUADRANGLESTRIPS:
8e0a2b19 1070 myDrawMode = GL_QUAD_STRIP;
1071 myIsFillType = true;
a79f67f8 1072 break;
a79f67f8 1073 case Graphic3d_TOPA_POLYGONS:
8e0a2b19 1074 myDrawMode = GL_POLYGON;
1075 myIsFillType = true;
1076 break;
1077 #else
a79f67f8 1078 case Graphic3d_TOPA_QUADRANGLES:
1079 case Graphic3d_TOPA_QUADRANGLESTRIPS:
8e0a2b19 1080 case Graphic3d_TOPA_POLYGONS:
a79f67f8 1081 #endif
1082 case Graphic3d_TOPA_UNDEFINED:
8e0a2b19 1083 myDrawMode = DRAW_MODE_NONE;
1084 myIsFillType = false;
a79f67f8 1085 break;
1086 }
1087}
1088
e99a2f7c 1089// =======================================================================
1090// function : processIndices
1091// purpose :
1092// =======================================================================
1093Standard_Boolean OpenGl_PrimitiveArray::processIndices (const Handle(OpenGl_Context)& theContext) const
1094{
1095 if (myIndices.IsNull()
09f30297 1096 || myAttribs.IsNull()
e99a2f7c 1097 || theContext->hasUintIndex)
1098 {
1099 return Standard_True;
1100 }
1101
09f30297 1102 if (myAttribs->NbElements > std::numeric_limits<GLushort>::max())
e99a2f7c 1103 {
1104 Handle(Graphic3d_Buffer) anAttribs = new Graphic3d_Buffer (new NCollection_AlignedAllocator (16));
1105 if (!anAttribs->Init (myIndices->NbElements, myAttribs->AttributesArray(), myAttribs->NbAttributes))
1106 {
1107 return Standard_False; // failed to initialize attribute array
1108 }
1109
1110 for (Standard_Integer anIdxIdx = 0; anIdxIdx < myIndices->NbElements; ++anIdxIdx)
1111 {
1112 const Standard_Integer anIndex = myIndices->Index (anIdxIdx);
1113 memcpy (anAttribs->ChangeData() + myAttribs->Stride * anIdxIdx,
1114 myAttribs->Data() + myAttribs->Stride * anIndex,
1115 myAttribs->Stride);
1116 }
1117
1118 myIndices.Nullify();
1119 myAttribs = anAttribs;
1120 }
1121
1122 return Standard_True;
1123}
1124
a79f67f8 1125// =======================================================================
1126// function : InitBuffers
1127// purpose :
1128// =======================================================================
1129void OpenGl_PrimitiveArray::InitBuffers (const Handle(OpenGl_Context)& theContext,
1130 const Graphic3d_TypeOfPrimitiveArray theType,
1131 const Handle(Graphic3d_IndexBuffer)& theIndices,
1132 const Handle(Graphic3d_Buffer)& theAttribs,
1133 const Handle(Graphic3d_BoundBuffer)& theBounds)
1134{
1135 // Release old graphic resources
1136 Release (theContext.operator->());
1137
1138 myIndices = theIndices;
1139 myAttribs = theAttribs;
1140 myBounds = theBounds;
e99a2f7c 1141#if defined(GL_ES_VERSION_2_0)
1142 processIndices (theContext);
1143#endif
a79f67f8 1144
1145 setDrawMode (theType);
1146}