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occt/src/OpenGl/OpenGl_Workspace.cxx
Jacob Abel a3f6f591fc 0027105: Make code ISO-compliant [-Wpedantic fixes] 
Remove extra semicolons and correct function prototypes for GCC -pedantic ISO compliance option
2016-01-22 11:29:24 +03:00

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// Created on: 2011-09-20
// Created by: Sergey ZERCHANINOV
// Copyright (c) 2011-2014 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_Workspace.hxx>
#include <InterfaceGraphic.hxx>
#include <OpenGl_ArbFBO.hxx>
#include <OpenGl_AspectLine.hxx>
#include <OpenGl_AspectFace.hxx>
#include <OpenGl_AspectMarker.hxx>
#include <OpenGl_AspectText.hxx>
#include <OpenGl_Context.hxx>
#include <OpenGl_Element.hxx>
#include <OpenGl_FrameBuffer.hxx>
#include <OpenGl_GlCore15.hxx>
#include <OpenGl_SceneGeometry.hxx>
#include <OpenGl_Structure.hxx>
#include <OpenGl_Sampler.hxx>
#include <OpenGl_Texture.hxx>
#include <OpenGl_View.hxx>
#include <OpenGl_Window.hxx>
#include <Graphic3d_TextureParams.hxx>
#include <Graphic3d_TransformUtils.hxx>
IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Workspace,Standard_Transient)
IMPLEMENT_STANDARD_RTTIEXT(OpenGl_RaytraceFilter,OpenGl_RenderFilter)
#ifdef HAVE_GL2PS
#include <gl2ps.h>
/* OCC22216 NOTE: linker dependency can be switched off by undefining macro.
Pragma comment for gl2ps.lib is defined only here. */
#ifdef _MSC_VER
#pragma comment( lib, "gl2ps.lib" )
#endif
#endif
namespace
{
static const TEL_COLOUR THE_WHITE_COLOR = { { 1.0f, 1.0f, 1.0f, 1.0f } };
static const OpenGl_Vec4 THE_BLACK_COLOR (0.0f, 0.0f, 0.0f, 1.0f);
static const OpenGl_AspectLine myDefaultAspectLine;
static const OpenGl_AspectFace myDefaultAspectFace;
static const OpenGl_AspectMarker myDefaultAspectMarker;
static const OpenGl_Matrix myDefaultMatrix =
{
{{ 1.0F, 0.0F, 0.0F, 0.0F },
{ 0.0F, 1.0F, 0.0F, 0.0F },
{ 0.0F, 0.0F, 1.0F, 0.0F },
{ 0.0F, 0.0F, 0.0F, 1.0F }}
};
}
// =======================================================================
// function : Init
// purpose :
// =======================================================================
void OpenGl_Material::Init (const OPENGL_SURF_PROP& theProp)
{
// ambient component
if (theProp.color_mask & OPENGL_AMBIENT_MASK)
{
const float* aSrcAmb = theProp.isphysic ? theProp.ambcol.rgb : theProp.matcol.rgb;
Ambient = OpenGl_Vec4 (aSrcAmb[0] * theProp.amb,
aSrcAmb[1] * theProp.amb,
aSrcAmb[2] * theProp.amb,
1.0f);
}
else
{
Ambient = THE_BLACK_COLOR;
}
// diffusion component
if (theProp.color_mask & OPENGL_DIFFUSE_MASK)
{
const float* aSrcDif = theProp.isphysic ? theProp.difcol.rgb : theProp.matcol.rgb;
Diffuse = OpenGl_Vec4 (aSrcDif[0] * theProp.diff,
aSrcDif[1] * theProp.diff,
aSrcDif[2] * theProp.diff,
1.0f);
}
else
{
Diffuse = THE_BLACK_COLOR;
}
// specular component
if (theProp.color_mask & OPENGL_SPECULAR_MASK)
{
const float* aSrcSpe = theProp.isphysic ? theProp.speccol.rgb : THE_WHITE_COLOR.rgb;
Specular = OpenGl_Vec4 (aSrcSpe[0] * theProp.spec,
aSrcSpe[1] * theProp.spec,
aSrcSpe[2] * theProp.spec,
1.0f);
}
else
{
Specular = THE_BLACK_COLOR;
}
// emission component
if (theProp.color_mask & OPENGL_EMISSIVE_MASK)
{
const float* aSrcEms = theProp.isphysic ? theProp.emscol.rgb : theProp.matcol.rgb;
Emission = OpenGl_Vec4 (aSrcEms[0] * theProp.emsv,
aSrcEms[1] * theProp.emsv,
aSrcEms[2] * theProp.emsv,
1.0f);
}
else
{
Emission = THE_BLACK_COLOR;
}
ChangeShine() = theProp.shine;
ChangeTransparency() = theProp.trans;
}
// =======================================================================
// function : OpenGl_Workspace
// purpose :
// =======================================================================
OpenGl_Workspace::OpenGl_Workspace (OpenGl_View* theView, const Handle(OpenGl_Window)& theWindow)
: NamedStatus (0),
HighlightColor (&THE_WHITE_COLOR),
myView (theView),
myWindow (theWindow),
myGlContext (!theWindow.IsNull() ? theWindow->GetGlContext() : NULL),
myUseZBuffer (Standard_True),
myUseDepthWrite (Standard_True),
myUseGLLight (Standard_True),
//
AspectLine_set (&myDefaultAspectLine),
AspectLine_applied (NULL),
AspectFace_set (&myDefaultAspectFace),
AspectFace_applied (NULL),
AspectMarker_set (&myDefaultAspectMarker),
AspectMarker_applied (NULL),
ViewMatrix_applied (&myDefaultMatrix),
StructureMatrix_applied (&myDefaultMatrix),
myCullingMode (TelCullUndefined),
myModelViewMatrix (myDefaultMatrix),
PolygonOffset_applied (THE_DEFAULT_POFFSET)
{
if (!myGlContext.IsNull() && myGlContext->MakeCurrent())
{
myGlContext->core11fwd->glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
if (!myGlContext->GetResource ("OpenGl_LineAttributes", myLineAttribs))
{
// share and register for release once the resource is no longer used
myLineAttribs = new OpenGl_LineAttributes();
myGlContext->ShareResource ("OpenGl_LineAttributes", myLineAttribs);
myLineAttribs->Init (myGlContext);
}
// General initialization of the context
#if !defined(GL_ES_VERSION_2_0)
if (myGlContext->core11 != NULL)
{
// Eviter d'avoir les faces mal orientees en noir.
// Pourrait etre utiliser pour detecter les problemes d'orientation
glLightModeli ((GLenum )GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
// Optimisation pour le Fog et l'antialiasing
glHint (GL_FOG_HINT, GL_FASTEST);
glHint (GL_POINT_SMOOTH_HINT, GL_FASTEST);
}
glHint (GL_LINE_SMOOTH_HINT, GL_FASTEST);
glHint (GL_POLYGON_SMOOTH_HINT, GL_FASTEST);
#endif
}
myDefaultCappingAlgoFilter = new OpenGl_CappingAlgoFilter();
myNoneCulling.ChangeCullingMode() = TelCullNone;
myNoneCulling.ChangeEdge() = 0;
myFrontCulling.ChangeCullingMode() = TelCullBack;
myFrontCulling.ChangeEdge() = 0;
}
// =======================================================================
// function : ~OpenGl_Workspace
// purpose :
// =======================================================================
OpenGl_Workspace::~OpenGl_Workspace()
{
if (!myLineAttribs.IsNull())
{
myLineAttribs.Nullify();
myGlContext->ReleaseResource ("OpenGl_LineAttributes", Standard_True);
}
}
// =======================================================================
// function : Activate
// purpose :
// =======================================================================
Standard_Boolean OpenGl_Workspace::Activate()
{
if (myWindow.IsNull() || !myWindow->Activate())
{
return Standard_False;
}
ViewMatrix_applied = &myDefaultMatrix;
StructureMatrix_applied = &myDefaultMatrix;
ResetAppliedAspect();
return Standard_True;
}
//=======================================================================
//function : ResetAppliedAspect
//purpose : Sets default values of GL parameters in accordance with default aspects
//=======================================================================
void OpenGl_Workspace::ResetAppliedAspect()
{
myGlContext->BindDefaultVao();
NamedStatus = !myTextureBound.IsNull() ? OPENGL_NS_TEXTURE : 0;
HighlightColor = &THE_WHITE_COLOR;
AspectLine_set = &myDefaultAspectLine;
AspectLine_applied = NULL;
AspectFace_set = &myDefaultAspectFace;
AspectFace_applied = NULL;
AspectMarker_set = &myDefaultAspectMarker;
AspectMarker_applied = NULL;
PolygonOffset_applied = THE_DEFAULT_POFFSET;
myCullingMode = TelCullUndefined;
AspectLine(Standard_True);
AspectFace(Standard_True);
AspectMarker(Standard_True);
AspectText(Standard_True);
myGlContext->SetTypeOfLine (myDefaultAspectLine.Type());
myGlContext->SetLineWidth (myDefaultAspectLine.Width());
}
// =======================================================================
// function : DisableTexture
// purpose :
// =======================================================================
Handle(OpenGl_Texture) OpenGl_Workspace::DisableTexture()
{
if (myTextureBound.IsNull())
{
return myTextureBound;
}
const Handle(OpenGl_Sampler)& aSampler = myGlContext->TextureSampler();
if (!aSampler.IsNull())
{
aSampler->Unbind (*myGlContext);
}
#if !defined(GL_ES_VERSION_2_0)
// reset texture matrix because some code may expect it is identity
if (myGlContext->core11 != NULL)
{
GLint aMatrixMode = GL_TEXTURE;
glGetIntegerv (GL_MATRIX_MODE, &aMatrixMode);
glMatrixMode (GL_TEXTURE);
glLoadIdentity();
glMatrixMode (aMatrixMode);
}
#endif
myTextureBound->Unbind (myGlContext);
switch (myTextureBound->GetTarget())
{
#if !defined(GL_ES_VERSION_2_0)
case GL_TEXTURE_1D:
{
if (myGlContext->core11 != NULL)
{
if (myTextureBound->GetParams()->GenMode() != GL_NONE)
{
glDisable (GL_TEXTURE_GEN_S);
}
glDisable (GL_TEXTURE_1D);
}
break;
}
#endif
case GL_TEXTURE_2D:
{
#if !defined(GL_ES_VERSION_2_0)
if (myGlContext->core11 != NULL)
{
if (myTextureBound->GetParams()->GenMode() != GL_NONE)
{
glDisable (GL_TEXTURE_GEN_S);
glDisable (GL_TEXTURE_GEN_T);
if (myTextureBound->GetParams()->GenMode() == Graphic3d_TOTM_SPRITE)
{
glDisable (GL_POINT_SPRITE);
}
}
glDisable (GL_TEXTURE_2D);
}
#endif
break;
}
default: break;
}
Handle(OpenGl_Texture) aPrevTexture = myTextureBound;
myTextureBound.Nullify();
return aPrevTexture;
}
// =======================================================================
// function : setTextureParams
// purpose :
// =======================================================================
void OpenGl_Workspace::setTextureParams (Handle(OpenGl_Texture)& theTexture,
const Handle(Graphic3d_TextureParams)& theParams)
{
const Handle(Graphic3d_TextureParams)& aParams = theParams.IsNull() ? theTexture->GetParams() : theParams;
if (aParams.IsNull())
{
return;
}
#if !defined(GL_ES_VERSION_2_0)
if (myGlContext->core11 != NULL)
{
GLint anEnvMode = GL_MODULATE; // lighting mode
if (!aParams->IsModulate())
{
anEnvMode = GL_DECAL;
if (theTexture->GetFormat() == GL_ALPHA
|| theTexture->GetFormat() == GL_LUMINANCE)
{
anEnvMode = GL_REPLACE;
}
}
// setup generation of texture coordinates
switch (aParams->GenMode())
{
case Graphic3d_TOTM_OBJECT:
{
glTexGeni (GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
glTexGenfv (GL_S, GL_OBJECT_PLANE, aParams->GenPlaneS().GetData());
if (theTexture->GetTarget() != GL_TEXTURE_1D)
{
glTexGeni (GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
glTexGenfv (GL_T, GL_OBJECT_PLANE, aParams->GenPlaneT().GetData());
}
break;
}
case Graphic3d_TOTM_SPHERE:
{
glTexGeni (GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
if (theTexture->GetTarget() != GL_TEXTURE_1D)
{
glTexGeni (GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
}
break;
}
case Graphic3d_TOTM_EYE:
{
myGlContext->WorldViewState.Push();
myGlContext->WorldViewState.SetIdentity();
myGlContext->ApplyWorldViewMatrix();
glTexGeni (GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
glTexGenfv (GL_S, GL_EYE_PLANE, aParams->GenPlaneS().GetData());
if (theTexture->GetTarget() != GL_TEXTURE_1D)
{
glTexGeni (GL_T, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
glTexGenfv (GL_T, GL_EYE_PLANE, aParams->GenPlaneT().GetData());
}
myGlContext->WorldViewState.Pop();
break;
}
case Graphic3d_TOTM_SPRITE:
{
if (myGlContext->core20fwd != NULL)
{
glEnable (GL_POINT_SPRITE);
glTexEnvi (GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE);
anEnvMode = GL_REPLACE;
myGlContext->core15->glPointParameteri (GL_POINT_SPRITE_COORD_ORIGIN, GL_LOWER_LEFT);
}
break;
}
case Graphic3d_TOTM_MANUAL:
default: break;
}
// setup lighting
glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, anEnvMode);
}
#endif
// get active sampler object to override default texture parameters
const Handle(OpenGl_Sampler)& aSampler = myGlContext->TextureSampler();
// setup texture filtering and wrapping
//if (theTexture->GetParams() != theParams)
const GLenum aFilter = (aParams->Filter() == Graphic3d_TOTF_NEAREST) ? GL_NEAREST : GL_LINEAR;
const GLenum aWrapMode = aParams->IsRepeat() ? GL_REPEAT : myGlContext->TextureWrapClamp();
switch (theTexture->GetTarget())
{
#if !defined(GL_ES_VERSION_2_0)
case GL_TEXTURE_1D:
{
if (aSampler.IsNull() || !aSampler->IsValid())
{
glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, aFilter);
glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, aFilter);
glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, aWrapMode);
}
else
{
aSampler->SetParameter (*myGlContext, GL_TEXTURE_MAG_FILTER, aFilter);
aSampler->SetParameter (*myGlContext, GL_TEXTURE_MIN_FILTER, aFilter);
aSampler->SetParameter (*myGlContext, GL_TEXTURE_WRAP_S, aWrapMode);
}
break;
}
#endif
case GL_TEXTURE_2D:
{
GLenum aFilterMin = aFilter;
if (theTexture->HasMipmaps())
{
aFilterMin = GL_NEAREST_MIPMAP_NEAREST;
if (aParams->Filter() == Graphic3d_TOTF_BILINEAR)
{
aFilterMin = GL_LINEAR_MIPMAP_NEAREST;
}
else if (aParams->Filter() == Graphic3d_TOTF_TRILINEAR)
{
aFilterMin = GL_LINEAR_MIPMAP_LINEAR;
}
if (myGlContext->extAnis)
{
// setup degree of anisotropy filter
const GLint aMaxDegree = myGlContext->MaxDegreeOfAnisotropy();
GLint aDegree;
switch (aParams->AnisoFilter())
{
case Graphic3d_LOTA_QUALITY:
{
aDegree = aMaxDegree;
break;
}
case Graphic3d_LOTA_MIDDLE:
{
aDegree = (aMaxDegree <= 4) ? 2 : (aMaxDegree / 2);
break;
}
case Graphic3d_LOTA_FAST:
{
aDegree = 2;
break;
}
case Graphic3d_LOTA_OFF:
default:
{
aDegree = 1;
break;
}
}
if (aSampler.IsNull() || !aSampler->IsValid())
{
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, aDegree);
}
else
{
aSampler->SetParameter (*myGlContext, GL_TEXTURE_MAX_ANISOTROPY_EXT, aDegree);
}
}
}
if (aSampler.IsNull() || !aSampler->IsValid())
{
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, aFilterMin);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, aFilter);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, aWrapMode);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, aWrapMode);
}
else
{
aSampler->SetParameter (*myGlContext, GL_TEXTURE_MIN_FILTER, aFilterMin);
aSampler->SetParameter (*myGlContext, GL_TEXTURE_MAG_FILTER, aFilter);
aSampler->SetParameter (*myGlContext, GL_TEXTURE_WRAP_S, aWrapMode);
aSampler->SetParameter (*myGlContext, GL_TEXTURE_WRAP_T, aWrapMode);
}
break;
}
default: break;
}
switch (theTexture->GetTarget())
{
#if !defined(GL_ES_VERSION_2_0)
case GL_TEXTURE_1D:
{
if (myGlContext->core11 != NULL)
{
if (aParams->GenMode() != Graphic3d_TOTM_MANUAL)
{
glEnable (GL_TEXTURE_GEN_S);
}
glEnable (GL_TEXTURE_1D);
}
break;
}
#endif
case GL_TEXTURE_2D:
{
#if !defined(GL_ES_VERSION_2_0)
if (myGlContext->core11 != NULL)
{
if (aParams->GenMode() != Graphic3d_TOTM_MANUAL)
{
glEnable (GL_TEXTURE_GEN_S);
glEnable (GL_TEXTURE_GEN_T);
}
glEnable (GL_TEXTURE_2D);
}
#endif
break;
}
default: break;
}
theTexture->SetParams (aParams);
}
// =======================================================================
// function : EnableTexture
// purpose :
// =======================================================================
Handle(OpenGl_Texture) OpenGl_Workspace::EnableTexture (const Handle(OpenGl_Texture)& theTexture,
const Handle(Graphic3d_TextureParams)& theParams)
{
if (theTexture.IsNull() || !theTexture->IsValid())
{
return DisableTexture();
}
if (myTextureBound == theTexture
&& (theParams.IsNull() || theParams == theTexture->GetParams()))
{
// already bound
return myTextureBound;
}
Handle(OpenGl_Texture) aPrevTexture = DisableTexture();
myTextureBound = theTexture;
myTextureBound->Bind (myGlContext);
setTextureParams (myTextureBound, theParams);
// If custom sampler object is available it will be
// used for overriding default texture parameters
const Handle(OpenGl_Sampler)& aSampler = myGlContext->TextureSampler();
if (!aSampler.IsNull() && aSampler->IsValid())
{
aSampler->Bind (*myGlContext);
}
return aPrevTexture;
}
// =======================================================================
// function : TelUpdatePolygonOffsets
// purpose :
// =======================================================================
static void TelUpdatePolygonOffsets (const TEL_POFFSET_PARAM& theOffsetData)
{
if ((theOffsetData.mode & Aspect_POM_Fill) == Aspect_POM_Fill)
{
glEnable (GL_POLYGON_OFFSET_FILL);
}
else
{
glDisable (GL_POLYGON_OFFSET_FILL);
}
#if !defined(GL_ES_VERSION_2_0)
if ((theOffsetData.mode & Aspect_POM_Line) == Aspect_POM_Line)
{
glEnable (GL_POLYGON_OFFSET_LINE);
}
else
{
glDisable (GL_POLYGON_OFFSET_LINE);
}
if ((theOffsetData.mode & Aspect_POM_Point) == Aspect_POM_Point)
{
glEnable (GL_POLYGON_OFFSET_POINT);
}
else
{
glDisable (GL_POLYGON_OFFSET_POINT);
}
#endif
glPolygonOffset (theOffsetData.factor, theOffsetData.units);
}
// =======================================================================
// function : updateMaterial
// purpose :
// =======================================================================
void OpenGl_Workspace::updateMaterial (const int theFlag)
{
// Case of hidden line
if (AspectFace_set->InteriorStyle() == Aspect_IS_HIDDENLINE)
{
myAspectFaceHl = *AspectFace_set; // copy all values including line edge aspect
myAspectFaceHl.ChangeIntFront().matcol = myView->BackgroundColor();
myAspectFaceHl.ChangeIntFront().color_mask = 0;
myAspectFaceHl.ChangeIntFront().color_mask = 0;
AspectFace_set = &myAspectFaceHl;
return;
}
const OPENGL_SURF_PROP* aProps = &AspectFace_set->IntFront();
GLenum aFace = GL_FRONT_AND_BACK;
if (theFlag == TEL_BACK_MATERIAL)
{
aFace = GL_BACK;
aProps = &AspectFace_set->IntBack();
}
else if (AspectFace_set->DistinguishingMode() == TOn
&& !(NamedStatus & OPENGL_NS_RESMAT))
{
aFace = GL_FRONT;
}
myMatTmp.Init (*aProps);
// handling transparency
if (NamedStatus & OPENGL_NS_2NDPASSDO)
{
// second pass
myMatTmp.Diffuse.a() = aProps->env_reflexion;
}
else
{
if (aProps->env_reflexion != 0.0f)
{
// if the material reflects the environment scene, the second pass is needed
NamedStatus |= OPENGL_NS_2NDPASSNEED;
}
if (aProps->trans != 1.0f)
{
// render transparent
myMatTmp.Diffuse.a() = aProps->trans;
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable (GL_BLEND);
if (myUseDepthWrite)
{
glDepthMask (GL_FALSE);
}
}
else
{
// render opaque
if ((NamedStatus & OPENGL_NS_ANTIALIASING) == 0)
{
glBlendFunc (GL_ONE, GL_ZERO);
glDisable (GL_BLEND);
}
if (myUseDepthWrite)
{
glDepthMask (GL_TRUE);
}
}
}
// do not update material properties in case of zero reflection mode,
// because GL lighting will be disabled by OpenGl_PrimitiveArray::DrawArray() anyway.
if (aProps->color_mask == 0)
{
return;
}
// reset material
if (NamedStatus & OPENGL_NS_RESMAT)
{
#if !defined(GL_ES_VERSION_2_0)
if (myGlContext->core11 != NULL)
{
myGlContext->core11->glMaterialfv (aFace, GL_AMBIENT, myMatTmp.Ambient.GetData());
myGlContext->core11->glMaterialfv (aFace, GL_DIFFUSE, myMatTmp.Diffuse.GetData());
myGlContext->core11->glMaterialfv (aFace, GL_SPECULAR, myMatTmp.Specular.GetData());
myGlContext->core11->glMaterialfv (aFace, GL_EMISSION, myMatTmp.Emission.GetData());
myGlContext->core11->glMaterialf (aFace, GL_SHININESS, myMatTmp.Shine());
}
#endif
if (theFlag == TEL_FRONT_MATERIAL)
{
myMatFront = myMatTmp;
myMatBack = myMatTmp;
}
else
{
myMatBack = myMatTmp;
}
NamedStatus &= ~OPENGL_NS_RESMAT;
return;
}
// reduce updates
OpenGl_Material& anOld = (theFlag == TEL_FRONT_MATERIAL)
? myMatFront
: myMatBack;
#if !defined(GL_ES_VERSION_2_0)
if (myGlContext->core11 != NULL)
{
if (myMatTmp.Ambient.r() != anOld.Ambient.r()
|| myMatTmp.Ambient.g() != anOld.Ambient.g()
|| myMatTmp.Ambient.b() != anOld.Ambient.b())
{
myGlContext->core11->glMaterialfv (aFace, GL_AMBIENT, myMatTmp.Ambient.GetData());
}
if (myMatTmp.Diffuse.r() != anOld.Diffuse.r()
|| myMatTmp.Diffuse.g() != anOld.Diffuse.g()
|| myMatTmp.Diffuse.b() != anOld.Diffuse.b()
|| fabs (myMatTmp.Diffuse.a() - anOld.Diffuse.a()) > 0.01f)
{
myGlContext->core11->glMaterialfv (aFace, GL_DIFFUSE, myMatTmp.Diffuse.GetData());
}
if (myMatTmp.Specular.r() != anOld.Specular.r()
|| myMatTmp.Specular.g() != anOld.Specular.g()
|| myMatTmp.Specular.b() != anOld.Specular.b())
{
myGlContext->core11->glMaterialfv (aFace, GL_SPECULAR, myMatTmp.Specular.GetData());
}
if (myMatTmp.Emission.r() != anOld.Emission.r()
|| myMatTmp.Emission.g() != anOld.Emission.g()
|| myMatTmp.Emission.b() != anOld.Emission.b())
{
myGlContext->core11->glMaterialfv (aFace, GL_EMISSION, myMatTmp.Emission.GetData());
}
if (myMatTmp.Shine() != anOld.Shine())
{
myGlContext->core11->glMaterialf (aFace, GL_SHININESS, myMatTmp.Shine());
}
}
#endif
anOld = myMatTmp;
if (aFace == GL_FRONT_AND_BACK)
{
myMatBack = myMatTmp;
}
}
// =======================================================================
// function : SetAspectLine
// purpose :
// =======================================================================
const OpenGl_AspectLine * OpenGl_Workspace::SetAspectLine(const OpenGl_AspectLine *AnAspect)
{
const OpenGl_AspectLine *AspectLine_old = AspectLine_set;
AspectLine_set = AnAspect;
return AspectLine_old;
}
// =======================================================================
// function : SetAspectFace
// purpose :
// =======================================================================
const OpenGl_AspectFace * OpenGl_Workspace::SetAspectFace(const OpenGl_AspectFace *AnAspect)
{
const OpenGl_AspectFace *AspectFace_old = AspectFace_set;
AspectFace_set = AnAspect;
return AspectFace_old;
}
// =======================================================================
// function : SetAspectMarker
// purpose :
// =======================================================================
const OpenGl_AspectMarker * OpenGl_Workspace::SetAspectMarker(const OpenGl_AspectMarker *AnAspect)
{
const OpenGl_AspectMarker *AspectMarker_old = AspectMarker_set;
AspectMarker_set = AnAspect;
return AspectMarker_old;
}
// =======================================================================
// function : SetAspectText
// purpose :
// =======================================================================
const OpenGl_AspectText * OpenGl_Workspace::SetAspectText(const OpenGl_AspectText *AnAspect)
{
const OpenGl_AspectText *AspectText_old = AspectText_set;
AspectText_set = AnAspect;
return AspectText_old;
}
// =======================================================================
// function : AspectLine
// purpose :
// =======================================================================
const OpenGl_AspectLine * OpenGl_Workspace::AspectLine(const Standard_Boolean theWithApply)
{
if (theWithApply)
{
AspectLine_applied = AspectLine_set;
}
return AspectLine_set;
}
// =======================================================================
// function : AspectFace
// purpose :
// =======================================================================
const OpenGl_AspectFace* OpenGl_Workspace::AspectFace (const Standard_Boolean theToApply)
{
if (!theToApply)
{
return AspectFace_set;
}
if (myView->BackfacingModel() == Graphic3d_TOBM_AUTOMATIC)
{
// manage back face culling mode, disable culling when clipping is enabled
TelCullMode aCullingMode = (myGlContext->Clipping().IsClippingOrCappingOn()
|| AspectFace_set->InteriorStyle() == Aspect_IS_HATCH)
? TelCullNone
: (TelCullMode )AspectFace_set->CullingMode();
if (aCullingMode != TelCullNone
&& !(NamedStatus & OPENGL_NS_2NDPASSDO))
{
// disable culling in case of translucent shading aspect
if (AspectFace_set->IntFront().trans != 1.0f)
{
aCullingMode = TelCullNone;
}
}
if (myCullingMode != aCullingMode)
{
myCullingMode = aCullingMode;
switch (myCullingMode)
{
case TelCullNone:
case TelCullUndefined:
{
glDisable (GL_CULL_FACE);
break;
}
case TelCullFront:
{
glCullFace (GL_FRONT);
glEnable (GL_CULL_FACE);
break;
}
case TelCullBack:
{
glCullFace (GL_BACK);
glEnable (GL_CULL_FACE);
break;
}
}
}
}
if (AspectFace_set == AspectFace_applied)
{
return AspectFace_set;
}
#if !defined(GL_ES_VERSION_2_0)
const Aspect_InteriorStyle anIntstyle = AspectFace_set->InteriorStyle();
if (AspectFace_applied == NULL || AspectFace_applied->InteriorStyle() != anIntstyle)
{
switch (anIntstyle)
{
case Aspect_IS_EMPTY:
case Aspect_IS_HOLLOW:
{
glPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
break;
}
case Aspect_IS_HATCH:
{
glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
myLineAttribs->SetTypeOfHatch (AspectFace_applied != NULL ? AspectFace_applied->Hatch() : TEL_HS_SOLID);
break;
}
case Aspect_IS_SOLID:
case Aspect_IS_HIDDENLINE:
{
glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
if (myGlContext->core11 != NULL)
{
glDisable (GL_POLYGON_STIPPLE);
}
break;
}
case Aspect_IS_POINT:
{
glPolygonMode (GL_FRONT_AND_BACK, GL_POINT);
break;
}
}
}
if (anIntstyle == Aspect_IS_HATCH)
{
const Tint hatchstyle = AspectFace_set->Hatch();
if (AspectFace_applied == NULL || AspectFace_applied->Hatch() != hatchstyle)
{
myLineAttribs->SetTypeOfHatch (hatchstyle);
}
}
#endif
// Aspect_POM_None means: do not change current settings
if ((AspectFace_set->PolygonOffset().mode & Aspect_POM_None) != Aspect_POM_None)
{
if (PolygonOffset_applied.mode != AspectFace_set->PolygonOffset().mode
|| PolygonOffset_applied.factor != AspectFace_set->PolygonOffset().factor
|| PolygonOffset_applied.units != AspectFace_set->PolygonOffset().units)
{
SetPolygonOffset (AspectFace_set->PolygonOffset().mode,
AspectFace_set->PolygonOffset().factor,
AspectFace_set->PolygonOffset().units);
}
}
updateMaterial (TEL_FRONT_MATERIAL);
if (AspectFace_set->DistinguishingMode() == TOn)
{
updateMaterial (TEL_BACK_MATERIAL);
}
if ((NamedStatus & OPENGL_NS_FORBIDSETTEX) == 0)
{
if (AspectFace_set->DoTextureMap())
{
EnableTexture (AspectFace_set->TextureRes (myGlContext),
AspectFace_set->TextureParams());
}
else
{
DisableTexture();
}
}
AspectFace_applied = AspectFace_set;
return AspectFace_set;
}
//=======================================================================
//function : SetPolygonOffset
//purpose :
//=======================================================================
void OpenGl_Workspace::SetPolygonOffset (int theMode,
Standard_ShortReal theFactor,
Standard_ShortReal theUnits)
{
PolygonOffset_applied.mode = theMode;
PolygonOffset_applied.factor = theFactor;
PolygonOffset_applied.units = theUnits;
TelUpdatePolygonOffsets (PolygonOffset_applied);
}
// =======================================================================
// function : AspectMarker
// purpose :
// =======================================================================
const OpenGl_AspectMarker* OpenGl_Workspace::AspectMarker (const Standard_Boolean theToApply)
{
if (theToApply && (AspectMarker_set != AspectMarker_applied))
{
if (!AspectMarker_applied || (AspectMarker_set->Scale() != AspectMarker_applied->Scale()))
{
#if !defined(GL_ES_VERSION_2_0)
glPointSize (AspectMarker_set->Scale());
#ifdef HAVE_GL2PS
gl2psPointSize (AspectMarker_set->Scale());
#endif
#endif
}
AspectMarker_applied = AspectMarker_set;
}
return AspectMarker_set;
}
// =======================================================================
// function : AspectText
// purpose :
// =======================================================================
const OpenGl_AspectText* OpenGl_Workspace::AspectText (const Standard_Boolean theWithApply)
{
if (theWithApply)
{
AspectText_applied = AspectText_set;
}
return AspectText_set;
}
// =======================================================================
// function : Width
// purpose :
// =======================================================================
Standard_Integer OpenGl_Workspace::Width() const
{
return !myView->GlWindow().IsNull() ? myView->GlWindow()->Width() : 0;
}
// =======================================================================
// function : Height
// purpose :
// =======================================================================
Standard_Integer OpenGl_Workspace::Height() const
{
return !myView->GlWindow().IsNull() ? myView->GlWindow()->Height() : 0;
}
// =======================================================================
// function : UseGLLight
// purpose :
// =======================================================================
Standard_Boolean OpenGl_Workspace::UseGLLight() const
{
return myView->IsGLLightEnabled();
}
// =======================================================================
// function : AntiAliasingMode
// purpose :
// =======================================================================
Standard_Integer OpenGl_Workspace::AntiAliasingMode() const
{
return myView->IsAntialiasingEnabled();
}
// =======================================================================
// function : IsCullingEnabled
// purpose :
// =======================================================================
Standard_Boolean OpenGl_Workspace::IsCullingEnabled() const
{
return myView->IsCullingEnabled();
}
// =======================================================================
// function : FBOCreate
// purpose :
// =======================================================================
Handle(OpenGl_FrameBuffer) OpenGl_Workspace::FBOCreate (const Standard_Integer theWidth,
const Standard_Integer theHeight)
{
// activate OpenGL context
if (!Activate())
return Handle(OpenGl_FrameBuffer)();
// create the FBO
const Handle(OpenGl_Context)& aCtx = GetGlContext();
Handle(OpenGl_FrameBuffer) aFrameBuffer = new OpenGl_FrameBuffer();
if (!aFrameBuffer->Init (aCtx, theWidth, theHeight, GL_RGBA8, GL_DEPTH24_STENCIL8, 0))
{
aFrameBuffer->Release (aCtx.operator->());
return Handle(OpenGl_FrameBuffer)();
}
return aFrameBuffer;
}
// =======================================================================
// function : FBORelease
// purpose :
// =======================================================================
void OpenGl_Workspace::FBORelease (Handle(OpenGl_FrameBuffer)& theFbo)
{
// activate OpenGL context
if (!Activate()
|| theFbo.IsNull())
{
return;
}
theFbo->Release (GetGlContext().operator->());
theFbo.Nullify();
}
inline bool getDataFormat (const Image_PixMap& theData,
GLenum& thePixelFormat,
GLenum& theDataType)
{
thePixelFormat = GL_RGB;
theDataType = GL_UNSIGNED_BYTE;
switch (theData.Format())
{
#if !defined(GL_ES_VERSION_2_0)
case Image_PixMap::ImgGray:
thePixelFormat = GL_DEPTH_COMPONENT;
theDataType = GL_UNSIGNED_BYTE;
return true;
case Image_PixMap::ImgGrayF:
thePixelFormat = GL_DEPTH_COMPONENT;
theDataType = GL_FLOAT;
return true;
case Image_PixMap::ImgBGR:
thePixelFormat = GL_BGR;
theDataType = GL_UNSIGNED_BYTE;
return true;
case Image_PixMap::ImgBGRA:
case Image_PixMap::ImgBGR32:
thePixelFormat = GL_BGRA;
theDataType = GL_UNSIGNED_BYTE;
return true;
case Image_PixMap::ImgBGRF:
thePixelFormat = GL_BGR;
theDataType = GL_FLOAT;
return true;
case Image_PixMap::ImgBGRAF:
thePixelFormat = GL_BGRA;
theDataType = GL_FLOAT;
return true;
#else
case Image_PixMap::ImgGray:
case Image_PixMap::ImgGrayF:
case Image_PixMap::ImgBGR:
case Image_PixMap::ImgBGRA:
case Image_PixMap::ImgBGR32:
case Image_PixMap::ImgBGRF:
case Image_PixMap::ImgBGRAF:
return false;
#endif
case Image_PixMap::ImgRGB:
thePixelFormat = GL_RGB;
theDataType = GL_UNSIGNED_BYTE;
return true;
case Image_PixMap::ImgRGBA:
case Image_PixMap::ImgRGB32:
thePixelFormat = GL_RGBA;
theDataType = GL_UNSIGNED_BYTE;
return true;
case Image_PixMap::ImgRGBF:
thePixelFormat = GL_RGB;
theDataType = GL_FLOAT;
return true;
case Image_PixMap::ImgRGBAF:
thePixelFormat = GL_RGBA;
theDataType = GL_FLOAT;
return true;
case Image_PixMap::ImgAlpha:
case Image_PixMap::ImgAlphaF:
return false; // GL_ALPHA is no more supported in core context
case Image_PixMap::ImgUNKNOWN:
return false;
}
return false;
}
// =======================================================================
// function : getAligned
// purpose :
// =======================================================================
inline Standard_Size getAligned (const Standard_Size theNumber,
const Standard_Size theAlignment)
{
return theNumber + theAlignment - 1 - (theNumber - 1) % theAlignment;
}
// =======================================================================
// function : BufferDump
// purpose :
// =======================================================================
Standard_Boolean OpenGl_Workspace::BufferDump (const Handle(OpenGl_FrameBuffer)& theFbo,
Image_PixMap& theImage,
const Graphic3d_BufferType& theBufferType)
{
GLenum aFormat, aType;
if (theImage.IsEmpty()
|| !getDataFormat (theImage, aFormat, aType)
|| !Activate())
{
return Standard_False;
}
#if !defined(GL_ES_VERSION_2_0)
GLint aReadBufferPrev = GL_BACK;
if (theBufferType == Graphic3d_BT_Depth
&& aFormat != GL_DEPTH_COMPONENT)
{
return Standard_False;
}
#else
(void )theBufferType;
#endif
// bind FBO if used
if (!theFbo.IsNull() && theFbo->IsValid())
{
theFbo->BindBuffer (GetGlContext());
}
else
{
#if !defined(GL_ES_VERSION_2_0)
glGetIntegerv (GL_READ_BUFFER, &aReadBufferPrev);
GLint aDrawBufferPrev = GL_BACK;
glGetIntegerv (GL_DRAW_BUFFER, &aDrawBufferPrev);
glReadBuffer (aDrawBufferPrev);
#endif
}
// setup alignment
const GLint anAligment = Min (GLint(theImage.MaxRowAligmentBytes()), 8); // limit to 8 bytes for OpenGL
glPixelStorei (GL_PACK_ALIGNMENT, anAligment);
bool isBatchCopy = !theImage.IsTopDown();
const GLint anExtraBytes = GLint(theImage.RowExtraBytes());
GLint aPixelsWidth = GLint(theImage.SizeRowBytes() / theImage.SizePixelBytes());
Standard_Size aSizeRowBytesEstim = getAligned (theImage.SizePixelBytes() * aPixelsWidth, anAligment);
if (anExtraBytes < anAligment)
{
aPixelsWidth = 0;
}
else if (aSizeRowBytesEstim != theImage.SizeRowBytes())
{
aPixelsWidth = 0;
isBatchCopy = false;
}
#if !defined(GL_ES_VERSION_2_0)
glPixelStorei (GL_PACK_ROW_LENGTH, aPixelsWidth);
#else
if (aPixelsWidth != 0)
{
isBatchCopy = false;
}
#endif
if (!isBatchCopy)
{
// copy row by row
for (Standard_Size aRow = 0; aRow < theImage.SizeY(); ++aRow)
{
// Image_PixMap rows indexation always starts from the upper corner
// while order in memory depends on the flag and processed by ChangeRow() method
glReadPixels (0, GLint(theImage.SizeY() - aRow - 1), GLsizei (theImage.SizeX()), 1, aFormat, aType, theImage.ChangeRow (aRow));
}
}
else
{
glReadPixels (0, 0, GLsizei (theImage.SizeX()), GLsizei (theImage.SizeY()), aFormat, aType, theImage.ChangeData());
}
glPixelStorei (GL_PACK_ALIGNMENT, 1);
#if !defined(GL_ES_VERSION_2_0)
glPixelStorei (GL_PACK_ROW_LENGTH, 0);
#endif
if (!theFbo.IsNull() && theFbo->IsValid())
{
theFbo->UnbindBuffer (GetGlContext());
}
else
{
#if !defined(GL_ES_VERSION_2_0)
glReadBuffer (aReadBufferPrev);
#endif
}
return Standard_True;
}
// =======================================================================
// function : CanRender
// purpose :
// =======================================================================
Standard_Boolean OpenGl_RaytraceFilter::CanRender (const OpenGl_Element* theElement)
{
Standard_Boolean aPrevFilterResult = Standard_True;
if (!myPrevRenderFilter.IsNull())
{
aPrevFilterResult = myPrevRenderFilter->CanRender (theElement);
}
return aPrevFilterResult &&
!OpenGl_Raytrace::IsRaytracedElement (theElement);
}
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