mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-04-04 18:06:22 +03:00
65360da3db
Font_FontMgr - setup system fonts "Droid Sans Mono", "Droid Serif" and "Roboto" as aliases to "Courier", "Times" and "Arial" on Android. Locate Android system fonts in directory "/system/fonts". OpenGl_Text::FindFont() - print error message on missed fonts. OpenGl_Text::render() - allow straightforward font rendering on OpenGL ES. Do not use "Webdings" in tests. Drop duplicating test case bugs/vis/bug21091_2.
879 lines
29 KiB
C++
879 lines
29 KiB
C++
// Created on: 2011-07-13
|
|
// Created by: Sergey ZERCHANINOV
|
|
// Copyright (c) 2011-2013 OPEN CASCADE SAS
|
|
//
|
|
// This file is part of Open CASCADE Technology software library.
|
|
//
|
|
// This library is free software; you can redistribute it and/or modify it under
|
|
// the terms of the GNU Lesser General Public License version 2.1 as published
|
|
// by the Free Software Foundation, with special exception defined in the file
|
|
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
|
|
// distribution for complete text of the license and disclaimer of any warranty.
|
|
//
|
|
// Alternatively, this file may be used under the terms of Open CASCADE
|
|
// commercial license or contractual agreement.
|
|
|
|
#include <OpenGl_AspectFace.hxx>
|
|
#include <OpenGl_Context.hxx>
|
|
#include <OpenGl_GraphicDriver.hxx>
|
|
#include <OpenGl_IndexBuffer.hxx>
|
|
#include <OpenGl_PointSprite.hxx>
|
|
#include <OpenGl_PrimitiveArray.hxx>
|
|
#include <OpenGl_ShaderManager.hxx>
|
|
#include <OpenGl_ShaderProgram.hxx>
|
|
#include <OpenGl_Structure.hxx>
|
|
#include <OpenGl_VertexBufferCompat.hxx>
|
|
#include <OpenGl_Workspace.hxx>
|
|
#include <Graphic3d_TextureParams.hxx>
|
|
|
|
namespace
|
|
{
|
|
//! Convert index data type from size
|
|
inline GLenum toGlIndexType (const Standard_Integer theStride)
|
|
{
|
|
switch (theStride)
|
|
{
|
|
case 2: return GL_UNSIGNED_SHORT;
|
|
case 4: return GL_UNSIGNED_INT;
|
|
default: return GL_NONE;
|
|
}
|
|
}
|
|
|
|
//! Convert data type to GL info
|
|
inline GLenum toGlDataType (const Graphic3d_TypeOfData theType,
|
|
GLint& theNbComp)
|
|
{
|
|
switch (theType)
|
|
{
|
|
case Graphic3d_TOD_USHORT:
|
|
theNbComp = 1;
|
|
return GL_UNSIGNED_SHORT;
|
|
case Graphic3d_TOD_UINT:
|
|
theNbComp = 1;
|
|
return GL_UNSIGNED_INT;
|
|
case Graphic3d_TOD_VEC2:
|
|
theNbComp = 2;
|
|
return GL_FLOAT;
|
|
case Graphic3d_TOD_VEC3:
|
|
theNbComp = 3;
|
|
return GL_FLOAT;
|
|
case Graphic3d_TOD_VEC4:
|
|
theNbComp = 4;
|
|
return GL_FLOAT;
|
|
case Graphic3d_TOD_VEC4UB:
|
|
theNbComp = 4;
|
|
return GL_UNSIGNED_BYTE;
|
|
}
|
|
theNbComp = 0;
|
|
return GL_NONE;
|
|
}
|
|
|
|
}
|
|
|
|
//! Auxiliary template for VBO with interleaved attributes.
|
|
template<class TheBaseClass, int NbAttributes>
|
|
class OpenGl_VertexBufferT : public TheBaseClass
|
|
{
|
|
|
|
public:
|
|
|
|
//! Create uninitialized VBO.
|
|
OpenGl_VertexBufferT (const Graphic3d_Attribute* theAttribs,
|
|
const Standard_Integer theStride)
|
|
: Stride (theStride)
|
|
{
|
|
memcpy (Attribs, theAttribs, sizeof(Graphic3d_Attribute) * NbAttributes);
|
|
}
|
|
|
|
//! Create uninitialized VBO.
|
|
OpenGl_VertexBufferT (const Graphic3d_Buffer& theAttribs)
|
|
: Stride (theAttribs.Stride)
|
|
{
|
|
memcpy (Attribs, theAttribs.AttributesArray(), sizeof(Graphic3d_Attribute) * NbAttributes);
|
|
}
|
|
|
|
virtual bool HasColorAttribute() const
|
|
{
|
|
for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
|
|
{
|
|
const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
|
|
if (anAttrib.Id == Graphic3d_TOA_COLOR)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
virtual bool HasNormalAttribute() const
|
|
{
|
|
for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
|
|
{
|
|
const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
|
|
if (anAttrib.Id == Graphic3d_TOA_NORM)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
virtual void BindPositionAttribute (const Handle(OpenGl_Context)& theGlCtx) const
|
|
{
|
|
if (!TheBaseClass::IsValid())
|
|
{
|
|
return;
|
|
}
|
|
|
|
TheBaseClass::Bind (theGlCtx);
|
|
GLint aNbComp;
|
|
const GLubyte* anOffset = TheBaseClass::myOffset;
|
|
for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
|
|
{
|
|
const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
|
|
const GLenum aDataType = toGlDataType (anAttrib.DataType, aNbComp);
|
|
if (aDataType == GL_NONE)
|
|
{
|
|
continue;
|
|
}
|
|
else if (anAttrib.Id == Graphic3d_TOA_POS)
|
|
{
|
|
TheBaseClass::bindAttribute (theGlCtx, Graphic3d_TOA_POS, aNbComp, aDataType, Stride, anOffset);
|
|
break;
|
|
}
|
|
|
|
anOffset += Graphic3d_Attribute::Stride (anAttrib.DataType);
|
|
}
|
|
}
|
|
|
|
virtual void BindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const
|
|
{
|
|
if (!TheBaseClass::IsValid())
|
|
{
|
|
return;
|
|
}
|
|
|
|
TheBaseClass::Bind (theGlCtx);
|
|
GLint aNbComp;
|
|
const GLubyte* anOffset = TheBaseClass::myOffset;
|
|
for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
|
|
{
|
|
const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
|
|
const GLenum aDataType = toGlDataType (anAttrib.DataType, aNbComp);
|
|
if (aDataType == GL_NONE)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
TheBaseClass::bindAttribute (theGlCtx, anAttrib.Id, aNbComp, aDataType, Stride, anOffset);
|
|
anOffset += Graphic3d_Attribute::Stride (anAttrib.DataType);
|
|
}
|
|
}
|
|
|
|
virtual void UnbindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const
|
|
{
|
|
if (!TheBaseClass::IsValid())
|
|
{
|
|
return;
|
|
}
|
|
TheBaseClass::Unbind (theGlCtx);
|
|
|
|
for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
|
|
{
|
|
const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
|
|
TheBaseClass::unbindAttribute (theGlCtx, anAttrib.Id);
|
|
}
|
|
}
|
|
|
|
public:
|
|
|
|
Graphic3d_Attribute Attribs[NbAttributes];
|
|
Standard_Integer Stride;
|
|
|
|
};
|
|
|
|
// =======================================================================
|
|
// function : clearMemoryGL
|
|
// purpose :
|
|
// =======================================================================
|
|
void OpenGl_PrimitiveArray::clearMemoryGL (const Handle(OpenGl_Context)& theGlCtx) const
|
|
{
|
|
if (!myVboIndices.IsNull())
|
|
{
|
|
myVboIndices->Release (theGlCtx.operator->());
|
|
myVboIndices.Nullify();
|
|
}
|
|
if (!myVboAttribs.IsNull())
|
|
{
|
|
myVboAttribs->Release (theGlCtx.operator->());
|
|
myVboAttribs.Nullify();
|
|
}
|
|
}
|
|
|
|
// =======================================================================
|
|
// function : initNormalVbo
|
|
// purpose :
|
|
// =======================================================================
|
|
Standard_Boolean OpenGl_PrimitiveArray::initNormalVbo (const Handle(OpenGl_Context)& theCtx) const
|
|
{
|
|
switch (myAttribs->NbAttributes)
|
|
{
|
|
case 1: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 1> (*myAttribs); break;
|
|
case 2: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 2> (*myAttribs); break;
|
|
case 3: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 3> (*myAttribs); break;
|
|
case 4: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 4> (*myAttribs); break;
|
|
case 5: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 5> (*myAttribs); break;
|
|
case 6: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 6> (*myAttribs); break;
|
|
case 7: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 7> (*myAttribs); break;
|
|
case 8: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 8> (*myAttribs); break;
|
|
case 9: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 9> (*myAttribs); break;
|
|
case 10: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 10>(*myAttribs); break;
|
|
}
|
|
|
|
if (!myVboAttribs->init (theCtx, 0, myAttribs->NbElements, myAttribs->Data(), GL_NONE, myAttribs->Stride))
|
|
{
|
|
TCollection_ExtendedString aMsg;
|
|
aMsg += "VBO creation for Primitive Array has failed for ";
|
|
aMsg += myAttribs->NbElements;
|
|
aMsg += " vertices. Out of memory?";
|
|
theCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, GL_DEBUG_TYPE_PERFORMANCE_ARB, 0, GL_DEBUG_SEVERITY_LOW_ARB, aMsg);
|
|
|
|
clearMemoryGL (theCtx);
|
|
return Standard_False;
|
|
}
|
|
else if (myIndices.IsNull())
|
|
{
|
|
return Standard_True;
|
|
}
|
|
|
|
myVboIndices = new OpenGl_IndexBuffer();
|
|
bool isOk = false;
|
|
switch (myIndices->Stride)
|
|
{
|
|
case 2:
|
|
{
|
|
isOk = myVboIndices->Init (theCtx, 1, myIndices->NbElements, reinterpret_cast<const GLushort*> (myIndices->Data()));
|
|
break;
|
|
}
|
|
case 4:
|
|
{
|
|
isOk = myVboIndices->Init (theCtx, 1, myIndices->NbElements, reinterpret_cast<const GLuint*> (myIndices->Data()));
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
clearMemoryGL (theCtx);
|
|
return Standard_False;
|
|
}
|
|
}
|
|
if (!isOk)
|
|
{
|
|
TCollection_ExtendedString aMsg;
|
|
aMsg += "VBO creation for Primitive Array has failed for ";
|
|
aMsg += myIndices->NbElements;
|
|
aMsg += " indices. Out of memory?";
|
|
theCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, GL_DEBUG_TYPE_PERFORMANCE_ARB, 0, GL_DEBUG_SEVERITY_LOW_ARB, aMsg);
|
|
clearMemoryGL (theCtx);
|
|
return Standard_False;
|
|
}
|
|
return Standard_True;
|
|
}
|
|
|
|
// =======================================================================
|
|
// function : buildVBO
|
|
// purpose :
|
|
// =======================================================================
|
|
Standard_Boolean OpenGl_PrimitiveArray::buildVBO (const Handle(OpenGl_Context)& theCtx,
|
|
const Standard_Boolean theToKeepData) const
|
|
{
|
|
bool isNormalMode = theCtx->ToUseVbo();
|
|
if (myAttribs.IsNull()
|
|
|| myAttribs->IsEmpty()
|
|
|| myAttribs->NbElements < 1
|
|
|| myAttribs->NbAttributes < 1
|
|
|| myAttribs->NbAttributes > 10)
|
|
{
|
|
// vertices should be always defined - others are optional
|
|
return Standard_False;
|
|
}
|
|
|
|
if (isNormalMode
|
|
&& initNormalVbo (theCtx))
|
|
{
|
|
if (!theCtx->caps->keepArrayData
|
|
&& !theToKeepData)
|
|
{
|
|
myIndices.Nullify();
|
|
myAttribs.Nullify();
|
|
}
|
|
return Standard_True;
|
|
}
|
|
|
|
Handle(OpenGl_VertexBufferCompat) aVboAttribs;
|
|
switch (myAttribs->NbAttributes)
|
|
{
|
|
case 1: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 1> (*myAttribs); break;
|
|
case 2: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 2> (*myAttribs); break;
|
|
case 3: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 3> (*myAttribs); break;
|
|
case 4: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 4> (*myAttribs); break;
|
|
case 5: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 5> (*myAttribs); break;
|
|
case 6: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 6> (*myAttribs); break;
|
|
case 7: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 7> (*myAttribs); break;
|
|
case 8: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 8> (*myAttribs); break;
|
|
case 9: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 9> (*myAttribs); break;
|
|
case 10: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 10>(*myAttribs); break;
|
|
}
|
|
aVboAttribs->initLink (myAttribs, 0, myAttribs->NbElements, GL_NONE);
|
|
if (!myIndices.IsNull())
|
|
{
|
|
Handle(OpenGl_VertexBufferCompat) aVboIndices = new OpenGl_VertexBufferCompat();
|
|
switch (myIndices->Stride)
|
|
{
|
|
case 2:
|
|
{
|
|
aVboIndices->initLink (myIndices, 1, myIndices->NbElements, GL_UNSIGNED_SHORT);
|
|
break;
|
|
}
|
|
case 4:
|
|
{
|
|
aVboIndices->initLink (myIndices, 1, myIndices->NbElements, GL_UNSIGNED_INT);
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
return Standard_False;
|
|
}
|
|
}
|
|
myVboIndices = aVboIndices;
|
|
}
|
|
myVboAttribs = aVboAttribs;
|
|
if (!theCtx->caps->keepArrayData
|
|
&& !theToKeepData)
|
|
{
|
|
// does not make sense for compatibility mode
|
|
//myIndices.Nullify();
|
|
//myAttribs.Nullify();
|
|
}
|
|
|
|
return Standard_True;
|
|
}
|
|
|
|
// =======================================================================
|
|
// function : drawArray
|
|
// purpose :
|
|
// =======================================================================
|
|
void OpenGl_PrimitiveArray::drawArray (const Handle(OpenGl_Workspace)& theWorkspace,
|
|
const Graphic3d_Vec4* theFaceColors,
|
|
const Standard_Boolean theHasVertColor) const
|
|
{
|
|
const Handle(OpenGl_Context)& aGlContext = theWorkspace->GetGlContext();
|
|
const bool toHilight = (theWorkspace->NamedStatus & OPENGL_NS_HIGHLIGHT) != 0;
|
|
bool hasVColors = theHasVertColor && !toHilight;
|
|
if (myVboAttribs.IsNull())
|
|
{
|
|
#if !defined(GL_ES_VERSION_2_0)
|
|
if (myDrawMode == GL_POINTS)
|
|
{
|
|
// extreme compatibility mode - without sprites but with markers
|
|
drawMarkers (theWorkspace);
|
|
}
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
myVboAttribs->BindAllAttributes (aGlContext);
|
|
if (theHasVertColor && toHilight)
|
|
{
|
|
// disable per-vertex color
|
|
OpenGl_VertexBuffer::unbindAttribute (aGlContext, Graphic3d_TOA_COLOR);
|
|
}
|
|
if (!myVboIndices.IsNull())
|
|
{
|
|
myVboIndices->Bind (aGlContext);
|
|
GLubyte* anOffset = myVboIndices->GetDataOffset();
|
|
if (!myBounds.IsNull())
|
|
{
|
|
// draw primitives by vertex count with the indices
|
|
const size_t aStride = myVboIndices->GetDataType() == GL_UNSIGNED_SHORT ? sizeof(unsigned short) : sizeof(unsigned int);
|
|
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
|
|
{
|
|
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
|
|
if (theFaceColors != NULL) aGlContext->SetColor4fv (theFaceColors[aGroupIter]);
|
|
glDrawElements (myDrawMode, aNbElemsInGroup, myVboIndices->GetDataType(), anOffset);
|
|
anOffset += aStride * aNbElemsInGroup;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// draw one (or sequential) primitive by the indices
|
|
glDrawElements (myDrawMode, myVboIndices->GetElemsNb(), myVboIndices->GetDataType(), anOffset);
|
|
}
|
|
myVboIndices->Unbind (aGlContext);
|
|
}
|
|
else if (!myBounds.IsNull())
|
|
{
|
|
GLint aFirstElem = 0;
|
|
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
|
|
{
|
|
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
|
|
if (theFaceColors != NULL) aGlContext->SetColor4fv (theFaceColors[aGroupIter]);
|
|
glDrawArrays (myDrawMode, aFirstElem, aNbElemsInGroup);
|
|
aFirstElem += aNbElemsInGroup;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (myDrawMode == GL_POINTS)
|
|
{
|
|
drawMarkers (theWorkspace);
|
|
}
|
|
else
|
|
{
|
|
glDrawArrays (myDrawMode, 0, myVboAttribs->GetElemsNb());
|
|
}
|
|
}
|
|
|
|
// bind with 0
|
|
myVboAttribs->UnbindAllAttributes (aGlContext);
|
|
|
|
if (hasVColors)
|
|
{
|
|
theWorkspace->NamedStatus |= OPENGL_NS_RESMAT;
|
|
}
|
|
}
|
|
|
|
// =======================================================================
|
|
// function : drawEdges
|
|
// purpose :
|
|
// =======================================================================
|
|
void OpenGl_PrimitiveArray::drawEdges (const TEL_COLOUR* theEdgeColour,
|
|
const Handle(OpenGl_Workspace)& theWorkspace) const
|
|
{
|
|
const Handle(OpenGl_Context)& aGlContext = theWorkspace->GetGlContext();
|
|
if (myVboAttribs.IsNull())
|
|
{
|
|
return;
|
|
}
|
|
|
|
#if !defined(GL_ES_VERSION_2_0)
|
|
if (aGlContext->core11 != NULL)
|
|
{
|
|
glDisable (GL_LIGHTING);
|
|
}
|
|
#endif
|
|
|
|
const OpenGl_AspectLine* anAspectLineOld = NULL;
|
|
|
|
anAspectLineOld = theWorkspace->SetAspectLine (theWorkspace->AspectFace (Standard_True)->AspectEdge());
|
|
const OpenGl_AspectLine* anAspect = theWorkspace->AspectLine (Standard_True);
|
|
|
|
#if !defined(GL_ES_VERSION_2_0)
|
|
glPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
|
|
#endif
|
|
|
|
if (aGlContext->core20fwd != NULL)
|
|
{
|
|
aGlContext->ShaderManager()->BindProgram (anAspect, NULL, Standard_False, Standard_False, anAspect->ShaderProgramRes (aGlContext));
|
|
}
|
|
|
|
/// OCC22236 NOTE: draw edges for all situations:
|
|
/// 1) draw elements with GL_LINE style as edges from myPArray->bufferVBO[VBOEdges] indices array
|
|
/// 2) draw elements from vertex array, when bounds defines count of primitive's vertices.
|
|
/// 3) draw primitive's edges by vertexes if no edges and bounds array is specified
|
|
myVboAttribs->BindPositionAttribute (aGlContext);
|
|
aGlContext->SetColor4fv (*(const OpenGl_Vec4* )theEdgeColour->rgb);
|
|
if (!myVboIndices.IsNull())
|
|
{
|
|
myVboIndices->Bind (aGlContext);
|
|
GLubyte* anOffset = myVboIndices->GetDataOffset();
|
|
|
|
// draw primitives by vertex count with the indices
|
|
if (!myBounds.IsNull())
|
|
{
|
|
const size_t aStride = myVboIndices->GetDataType() == GL_UNSIGNED_SHORT ? sizeof(unsigned short) : sizeof(unsigned int);
|
|
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
|
|
{
|
|
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
|
|
glDrawElements (myDrawMode, aNbElemsInGroup, myVboIndices->GetDataType(), anOffset);
|
|
anOffset += aStride * aNbElemsInGroup;
|
|
}
|
|
}
|
|
// draw one (or sequential) primitive by the indices
|
|
else
|
|
{
|
|
glDrawElements (myDrawMode, myVboIndices->GetElemsNb(), myVboIndices->GetDataType(), anOffset);
|
|
}
|
|
myVboIndices->Unbind (aGlContext);
|
|
}
|
|
else if (!myBounds.IsNull())
|
|
{
|
|
GLint aFirstElem = 0;
|
|
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
|
|
{
|
|
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
|
|
glDrawArrays (myDrawMode, aFirstElem, aNbElemsInGroup);
|
|
aFirstElem += aNbElemsInGroup;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
glDrawArrays (myDrawMode, 0, myAttribs->NbElements);
|
|
}
|
|
|
|
// unbind buffers
|
|
myVboAttribs->UnbindAttribute (aGlContext, Graphic3d_TOA_POS);
|
|
|
|
// restore line context
|
|
theWorkspace->SetAspectLine (anAspectLineOld);
|
|
}
|
|
|
|
// =======================================================================
|
|
// function : drawMarkers
|
|
// purpose :
|
|
// =======================================================================
|
|
void OpenGl_PrimitiveArray::drawMarkers (const Handle(OpenGl_Workspace)& theWorkspace) const
|
|
{
|
|
const OpenGl_AspectMarker* anAspectMarker = theWorkspace->AspectMarker (Standard_True);
|
|
const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
|
|
const Handle(OpenGl_PointSprite)& aSpriteNorm = anAspectMarker->SpriteRes (aCtx);
|
|
if (!aSpriteNorm.IsNull()
|
|
&& !aSpriteNorm->IsDisplayList())
|
|
{
|
|
// Textured markers will be drawn with the point sprites
|
|
aCtx->SetPointSize (anAspectMarker->MarkerSize());
|
|
#if !defined(GL_ES_VERSION_2_0)
|
|
if (aCtx->core11 != NULL)
|
|
{
|
|
aCtx->core11fwd->glEnable (GL_ALPHA_TEST);
|
|
aCtx->core11fwd->glAlphaFunc (GL_GEQUAL, 0.1f);
|
|
}
|
|
#endif
|
|
|
|
aCtx->core11fwd->glEnable (GL_BLEND);
|
|
aCtx->core11fwd->glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
aCtx->core11fwd->glDrawArrays (myDrawMode, 0, !myVboAttribs.IsNull() ? myVboAttribs->GetElemsNb() : myAttribs->NbElements);
|
|
|
|
aCtx->core11fwd->glDisable (GL_BLEND);
|
|
#if !defined(GL_ES_VERSION_2_0)
|
|
if (aCtx->core11 != NULL)
|
|
{
|
|
aCtx->core11fwd->glDisable (GL_ALPHA_TEST);
|
|
}
|
|
#endif
|
|
aCtx->SetPointSize (1.0f);
|
|
return;
|
|
}
|
|
else if (anAspectMarker->Type() == Aspect_TOM_POINT)
|
|
{
|
|
aCtx->SetPointSize (anAspectMarker->MarkerSize());
|
|
aCtx->core11fwd->glDrawArrays (myDrawMode, 0, !myVboAttribs.IsNull() ? myVboAttribs->GetElemsNb() : myAttribs->NbElements);
|
|
aCtx->SetPointSize (1.0f);
|
|
}
|
|
#if !defined(GL_ES_VERSION_2_0)
|
|
// Textured markers will be drawn with the glBitmap
|
|
else if (anAspectMarker->Type() != Aspect_TOM_POINT
|
|
&& !aSpriteNorm.IsNull())
|
|
{
|
|
/**if (!isHilight && (myPArray->vcolours != NULL))
|
|
{
|
|
for (Standard_Integer anIter = 0; anIter < myAttribs->NbElements; anIter++)
|
|
{
|
|
glColor4ubv (myPArray->vcolours[anIter].GetData());
|
|
glRasterPos3fv (myAttribs->Value<Graphic3d_Vec3> (anIter).GetData());
|
|
aSpriteNorm->DrawBitmap (theWorkspace->GetGlContext());
|
|
}
|
|
}
|
|
else*/
|
|
{
|
|
for (Standard_Integer anIter = 0; anIter < myAttribs->NbElements; anIter++)
|
|
{
|
|
aCtx->core11->glRasterPos3fv (myAttribs->Value<Graphic3d_Vec3> (anIter).GetData());
|
|
aSpriteNorm->DrawBitmap (theWorkspace->GetGlContext());
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// =======================================================================
|
|
// function : OpenGl_PrimitiveArray
|
|
// purpose :
|
|
// =======================================================================
|
|
OpenGl_PrimitiveArray::OpenGl_PrimitiveArray (const OpenGl_GraphicDriver* theDriver,
|
|
const Graphic3d_TypeOfPrimitiveArray theType,
|
|
const Handle(Graphic3d_IndexBuffer)& theIndices,
|
|
const Handle(Graphic3d_Buffer)& theAttribs,
|
|
const Handle(Graphic3d_BoundBuffer)& theBounds)
|
|
|
|
: myIndices (theIndices),
|
|
myAttribs (theAttribs),
|
|
myBounds (theBounds),
|
|
myDrawMode (DRAW_MODE_NONE),
|
|
myIsVboInit (Standard_False)
|
|
{
|
|
if (theDriver != NULL)
|
|
{
|
|
myUID = theDriver->GetNextPrimitiveArrayUID();
|
|
}
|
|
|
|
if (!myIndices.IsNull()
|
|
&& myIndices->NbElements < 1)
|
|
{
|
|
// dummy index buffer?
|
|
myIndices.Nullify();
|
|
}
|
|
|
|
setDrawMode (theType);
|
|
}
|
|
|
|
// =======================================================================
|
|
// function : ~OpenGl_PrimitiveArray
|
|
// purpose :
|
|
// =======================================================================
|
|
OpenGl_PrimitiveArray::~OpenGl_PrimitiveArray()
|
|
{
|
|
//
|
|
}
|
|
|
|
// =======================================================================
|
|
// function : Release
|
|
// purpose :
|
|
// =======================================================================
|
|
void OpenGl_PrimitiveArray::Release (OpenGl_Context* theContext)
|
|
{
|
|
myIsVboInit = Standard_False;
|
|
if (!myVboIndices.IsNull())
|
|
{
|
|
if (theContext)
|
|
{
|
|
theContext->DelayedRelease (myVboIndices);
|
|
}
|
|
myVboIndices.Nullify();
|
|
}
|
|
if (!myVboAttribs.IsNull())
|
|
{
|
|
if (theContext)
|
|
{
|
|
theContext->DelayedRelease (myVboAttribs);
|
|
}
|
|
myVboAttribs.Nullify();
|
|
}
|
|
}
|
|
|
|
// =======================================================================
|
|
// function : Render
|
|
// purpose :
|
|
// =======================================================================
|
|
void OpenGl_PrimitiveArray::Render (const Handle(OpenGl_Workspace)& theWorkspace) const
|
|
{
|
|
if (myDrawMode == DRAW_MODE_NONE)
|
|
{
|
|
return;
|
|
}
|
|
|
|
const OpenGl_AspectFace* anAspectFace = theWorkspace->AspectFace (Standard_True);
|
|
const OpenGl_AspectLine* anAspectLine = theWorkspace->AspectLine (Standard_True);
|
|
const OpenGl_AspectMarker* anAspectMarker = theWorkspace->AspectMarker (myDrawMode == GL_POINTS);
|
|
|
|
// create VBOs on first render call
|
|
const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
|
|
if (!myIsVboInit)
|
|
{
|
|
// compatibility - keep data to draw markers using display lists
|
|
const Standard_Boolean toKeepData = myDrawMode == GL_POINTS
|
|
&& !anAspectMarker->SpriteRes (aCtx).IsNull()
|
|
&& anAspectMarker->SpriteRes (aCtx)->IsDisplayList();
|
|
buildVBO (aCtx, toKeepData);
|
|
myIsVboInit = Standard_True;
|
|
}
|
|
|
|
Tint aFrontLightingModel = anAspectFace->IntFront().color_mask;
|
|
const TEL_COLOUR* anInteriorColor = &anAspectFace->IntFront().matcol;
|
|
const TEL_COLOUR* anEdgeColor = &anAspectFace->AspectEdge()->Color();
|
|
const TEL_COLOUR* aLineColor = myDrawMode == GL_POINTS ? &anAspectMarker->Color() : &anAspectLine->Color();
|
|
|
|
// Use highlight colors
|
|
if (theWorkspace->NamedStatus & OPENGL_NS_HIGHLIGHT)
|
|
{
|
|
anEdgeColor = anInteriorColor = aLineColor = theWorkspace->HighlightColor;
|
|
aFrontLightingModel = 0;
|
|
}
|
|
|
|
const Standard_Boolean hasColorAttrib = !myVboAttribs.IsNull()
|
|
&& myVboAttribs->HasColorAttribute();
|
|
const Standard_Boolean isLightOn = aFrontLightingModel != 0
|
|
&& !myVboAttribs.IsNull()
|
|
&& myVboAttribs->HasNormalAttribute();
|
|
#if !defined(GL_ES_VERSION_2_0)
|
|
// manage FFP lighting
|
|
if (aCtx->core11 != NULL)
|
|
{
|
|
if (!isLightOn)
|
|
{
|
|
glDisable (GL_LIGHTING);
|
|
}
|
|
else
|
|
{
|
|
glEnable (GL_LIGHTING);
|
|
}
|
|
}
|
|
#endif
|
|
// Temporarily disable environment mapping
|
|
Handle(OpenGl_Texture) aTextureBack;
|
|
if (myDrawMode <= GL_LINE_STRIP)
|
|
{
|
|
aTextureBack = theWorkspace->DisableTexture();
|
|
}
|
|
|
|
if ((myDrawMode > GL_LINE_STRIP && anAspectFace->InteriorStyle() != Aspect_IS_EMPTY) ||
|
|
(myDrawMode <= GL_LINE_STRIP))
|
|
{
|
|
const bool toHilight = (theWorkspace->NamedStatus & OPENGL_NS_HIGHLIGHT) != 0;
|
|
const Graphic3d_Vec4* aFaceColors = !myBounds.IsNull() && !toHilight && anAspectFace->InteriorStyle() != Aspect_IS_HIDDENLINE
|
|
? myBounds->Colors
|
|
: NULL;
|
|
const Standard_Boolean hasVertColor = hasColorAttrib && !toHilight;
|
|
if (aCtx->core20fwd != NULL)
|
|
{
|
|
switch (myDrawMode)
|
|
{
|
|
case GL_POINTS:
|
|
{
|
|
const Handle(OpenGl_PointSprite)& aSpriteNorm = anAspectMarker->SpriteRes (aCtx);
|
|
if (!aSpriteNorm.IsNull()
|
|
&& !aSpriteNorm->IsDisplayList())
|
|
{
|
|
const Handle(OpenGl_PointSprite)& aSprite = (toHilight && anAspectMarker->SpriteHighlightRes (aCtx)->IsValid())
|
|
? anAspectMarker->SpriteHighlightRes (aCtx)
|
|
: aSpriteNorm;
|
|
theWorkspace->EnableTexture (aSprite);
|
|
aCtx->ShaderManager()->BindProgram (anAspectMarker, aSprite, isLightOn, hasVertColor, anAspectMarker->ShaderProgramRes (aCtx));
|
|
}
|
|
else
|
|
{
|
|
aCtx->ShaderManager()->BindProgram (anAspectMarker, NULL, isLightOn, hasVertColor, anAspectMarker->ShaderProgramRes (aCtx));
|
|
}
|
|
break;
|
|
}
|
|
case GL_LINES:
|
|
case GL_LINE_STRIP:
|
|
{
|
|
aCtx->ShaderManager()->BindProgram (anAspectLine, NULL, isLightOn, hasVertColor, anAspectLine->ShaderProgramRes (aCtx));
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
const Standard_Boolean isLightOnFace = isLightOn
|
|
&& (theWorkspace->ActiveTexture().IsNull()
|
|
|| theWorkspace->ActiveTexture()->GetParams()->IsModulate());
|
|
aCtx->ShaderManager()->BindProgram (anAspectFace, theWorkspace->ActiveTexture(), isLightOnFace, hasVertColor, anAspectFace->ShaderProgramRes (aCtx));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
aCtx->SetColor4fv (*(const OpenGl_Vec4* )(myDrawMode <= GL_LINE_STRIP ? aLineColor->rgb : anInteriorColor->rgb));
|
|
|
|
drawArray (theWorkspace, aFaceColors, hasColorAttrib);
|
|
}
|
|
|
|
if (myDrawMode <= GL_LINE_STRIP)
|
|
{
|
|
theWorkspace->EnableTexture (aTextureBack);
|
|
}
|
|
else
|
|
{
|
|
if (anAspectFace->Edge()
|
|
|| anAspectFace->InteriorStyle() == Aspect_IS_HIDDENLINE)
|
|
{
|
|
drawEdges (anEdgeColor, theWorkspace);
|
|
|
|
// restore OpenGL polygon mode if needed
|
|
#if !defined(GL_ES_VERSION_2_0)
|
|
if (anAspectFace->InteriorStyle() >= Aspect_IS_HATCH)
|
|
{
|
|
glPolygonMode (GL_FRONT_AND_BACK,
|
|
anAspectFace->InteriorStyle() == Aspect_IS_POINT ? GL_POINT : GL_FILL);
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
aCtx->BindProgram (NULL);
|
|
}
|
|
|
|
// =======================================================================
|
|
// function : setDrawMode
|
|
// purpose :
|
|
// =======================================================================
|
|
void OpenGl_PrimitiveArray::setDrawMode (const Graphic3d_TypeOfPrimitiveArray theType)
|
|
{
|
|
if (myAttribs.IsNull())
|
|
{
|
|
myDrawMode = DRAW_MODE_NONE;
|
|
return;
|
|
}
|
|
|
|
switch (theType)
|
|
{
|
|
case Graphic3d_TOPA_POINTS:
|
|
myDrawMode = GL_POINTS;
|
|
break;
|
|
case Graphic3d_TOPA_POLYLINES:
|
|
myDrawMode = GL_LINE_STRIP;
|
|
break;
|
|
case Graphic3d_TOPA_SEGMENTS:
|
|
myDrawMode = GL_LINES;
|
|
break;
|
|
case Graphic3d_TOPA_TRIANGLES:
|
|
myDrawMode = GL_TRIANGLES;
|
|
break;
|
|
case Graphic3d_TOPA_TRIANGLESTRIPS:
|
|
myDrawMode = GL_TRIANGLE_STRIP;
|
|
break;
|
|
case Graphic3d_TOPA_TRIANGLEFANS:
|
|
myDrawMode = GL_TRIANGLE_FAN;
|
|
break;
|
|
#if !defined(GL_ES_VERSION_2_0)
|
|
case Graphic3d_TOPA_POLYGONS:
|
|
myDrawMode = GL_POLYGON;
|
|
break;
|
|
case Graphic3d_TOPA_QUADRANGLES:
|
|
myDrawMode = GL_QUADS;
|
|
break;
|
|
case Graphic3d_TOPA_QUADRANGLESTRIPS:
|
|
myDrawMode = GL_QUAD_STRIP;
|
|
break;
|
|
#else
|
|
case Graphic3d_TOPA_POLYGONS:
|
|
case Graphic3d_TOPA_QUADRANGLES:
|
|
case Graphic3d_TOPA_QUADRANGLESTRIPS:
|
|
#endif
|
|
case Graphic3d_TOPA_UNDEFINED:
|
|
break;
|
|
}
|
|
}
|
|
|
|
// =======================================================================
|
|
// function : InitBuffers
|
|
// purpose :
|
|
// =======================================================================
|
|
void OpenGl_PrimitiveArray::InitBuffers (const Handle(OpenGl_Context)& theContext,
|
|
const Graphic3d_TypeOfPrimitiveArray theType,
|
|
const Handle(Graphic3d_IndexBuffer)& theIndices,
|
|
const Handle(Graphic3d_Buffer)& theAttribs,
|
|
const Handle(Graphic3d_BoundBuffer)& theBounds)
|
|
{
|
|
// Release old graphic resources
|
|
Release (theContext.operator->());
|
|
|
|
myIndices = theIndices;
|
|
myAttribs = theAttribs;
|
|
myBounds = theBounds;
|
|
|
|
setDrawMode (theType);
|
|
}
|
|
|
|
|