// Created on: 2011-09-20
// Created by: Sergey ZERCHANINOV
-// Copyright (c) 2011-2012 OPEN CASCADE SAS
+// Copyright (c) 2011-2014 OPEN CASCADE SAS
//
-// The content of this file is subject to the Open CASCADE Technology Public
-// License Version 6.5 (the "License"). You may not use the content of this file
-// except in compliance with the License. Please obtain a copy of the License
-// at http://www.opencascade.org and read it completely before using this file.
+// This file is part of Open CASCADE Technology software library.
//
-// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
-// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
+// 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.
//
-// The Original Code and all software distributed under the License is
-// distributed on an "AS IS" basis, without warranty of any kind, and the
-// Initial Developer hereby disclaims all such warranties, including without
-// limitation, any warranties of merchantability, fitness for a particular
-// purpose or non-infringement. Please see the License for the specific terms
-// and conditions governing the rights and limitations under the License.
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+#include <NCollection_Mat4.hxx>
-#include <OpenGl_GlCore11.hxx>
-
-#include <OpenGl_View.hxx>
#include <OpenGl_Context.hxx>
-#include <OpenGl_Workspace.hxx>
#include <OpenGl_Display.hxx>
-
+#include <OpenGl_GlCore11.hxx>
+#include <OpenGl_GraduatedTrihedron.hxx>
+#include <OpenGl_GraphicDriver.hxx>
+#include <OpenGl_ShaderManager.hxx>
#include <OpenGl_Texture.hxx>
#include <OpenGl_Trihedron.hxx>
-#include <OpenGl_GraduatedTrihedron.hxx>
-
#include <OpenGl_transform_persistence.hxx>
+#include <OpenGl_View.hxx>
+#include <OpenGl_Workspace.hxx>
#include <Graphic3d_TextureEnv.hxx>
-
-#include <GL/glu.h> // gluUnProject()
+#include <Graphic3d_Mat4d.hxx>
IMPLEMENT_STANDARD_HANDLE(OpenGl_View,MMgt_TShared)
IMPLEMENT_STANDARD_RTTIEXT(OpenGl_View,MMgt_TShared)
static const OPENGL_BG_GRADIENT myDefaultBgGradient = { {{ 0.F, 0.F, 0.F, 1.F }}, {{ 0.F, 0.F, 0.F, 1.F }}, Aspect_GFM_NONE };
static const Tmatrix3 myDefaultMatrix = { { 1.F, 0.F, 0.F, 0.F }, { 0.F, 1.F, 0.F, 0.F }, { 0.F, 0.F, 1.F, 0.F }, { 0.F, 0.F, 0.F, 1.F } };
static const OPENGL_ZCLIP myDefaultZClip = { { Standard_True, 0.F }, { Standard_True, 1.F } };
-static const OPENGL_EXTRA_REP myDefaultExtra =
-{
- //vrp
- { 0.F, 0.F, 0.F },
- //vpn
- { 0.F, 0.F, 1.F },
- //vup
- { 0.F, 1.F, 0.F },
- //map
- {
- //window
- { 0.F, 0.F, 1.F, 1.F },
- //viewport
- { 0.F, 0.F, 0.F, 1.F, 1.F, 1.F },
- //proj
- TelParallel,
- //prp
- { 0.F, 0.F, 0.F },
- //vpd
- 0.F,
- //fpd
- 0.F,
- //bpd
- -1.F
- },
- //scaleFactors
- { 1.F, 1.F, 1.F }
-};
static const OPENGL_FOG myDefaultFog = { Standard_False, 0.F, 1.F, { { 0.F, 0.F, 0.F, 1.F } } };
static const TEL_TRANSFORM_PERSISTENCE myDefaultTransPers = { 0, 0.F, 0.F, 0.F };
+static const GLdouble THE_IDENTITY_MATRIX[4][4] =
+{
+ {1.0, 0.0, 0.0, 0.0},
+ {0.0, 1.0, 0.0, 0.0},
+ {0.0, 0.0, 1.0, 0.0},
+ {0.0, 0.0, 0.0, 1.0}
+};
/*----------------------------------------------------------------------*/
-OpenGl_View::OpenGl_View (const CALL_DEF_VIEWCONTEXT &AContext)
+OpenGl_View::OpenGl_View (const CALL_DEF_VIEWCONTEXT &AContext,
+ OpenGl_StateCounter* theCounter)
: mySurfaceDetail(Visual3d_TOD_NONE),
myBackfacing(0),
myBgTexture(myDefaultBgTexture),
myBgGradient(myDefaultBgGradient),
- //myOrientationMatrix(myDefaultMatrix),
- //myMappingMatrix(myDefaultMatrix),
//shield_indicator = TOn,
//shield_colour = { { 0.F, 0.F, 0.F, 1.F } },
//border_indicator = TOff,
//border_colour = { { 0.F, 0.F, 0.F, 1.F } },
//active_status = TOn,
myZClip(myDefaultZClip),
- myExtra(myDefaultExtra),
+ myCamera(AContext.Camera),
myFog(myDefaultFog),
+ myTrihedron(NULL),
+ myGraduatedTrihedron(NULL),
myVisualization(AContext.Visualization),
myIntShadingMethod(TEL_SM_GOURAUD),
myAntiAliasing(Standard_False),
- myAnimationListIndex(0),
- myAnimationListReady(Standard_False),
myTransPers(&myDefaultTransPers),
myIsTransPers(Standard_False),
- myResetFLIST(Standard_False)
+ myProjectionState (0),
+ myModelViewState (0),
+ myStateCounter (theCounter),
+ myLastLightSourceState (0, 0)
{
- // Initialize matrices
- memcpy(myOrientationMatrix,myDefaultMatrix,sizeof(Tmatrix3));
- memcpy(myMappingMatrix,myDefaultMatrix,sizeof(Tmatrix3));
// Shading method
switch (AContext.Model)
myIntShadingMethod = TEL_SM_FLAT;
break;
}
+
+ myCurrLightSourceState = myStateCounter->Increment();
+
+ myModificationState = 1; // initial state
}
/*----------------------------------------------------------------------*/
void OpenGl_View::ReleaseGlResources (const Handle(OpenGl_Context)& theCtx)
{
+ OpenGl_Element::Destroy (theCtx, myTrihedron);
+ OpenGl_Element::Destroy (theCtx, myGraduatedTrihedron);
+
if (!myTextureEnv.IsNull())
{
theCtx->DelayedRelease (myTextureEnv);
glDeleteTextures (1, (GLuint*)&(myBgTexture.TexId));
myBgTexture.TexId = 0;
}
- if (myAnimationListIndex)
- {
- glDeleteLists ((GLuint )myAnimationListIndex, 1);
- myAnimationListIndex = 0;
- }
}
void OpenGl_View::SetTextureEnv (const Handle(OpenGl_Context)& theCtx,
myTextureEnv = new OpenGl_Texture (theTexture->GetParams());
Handle(Image_PixMap) anImage = theTexture->GetImage();
- myTextureEnv->Init (theCtx, *anImage.operator->(), theTexture->Type());
-}
+ if (!anImage.IsNull())
+ myTextureEnv->Init (theCtx, *anImage.operator->(), theTexture->Type());
-/*----------------------------------------------------------------------*/
-
-void OpenGl_View::SetBackfacing (const Standard_Integer AMode)
-{
- myBackfacing = AMode;
- myResetFLIST = Standard_True;
+ myModificationState++;
}
-/*----------------------------------------------------------------------*/
-
-//call_togl_setlight
-void OpenGl_View::SetLights (const CALL_DEF_VIEWCONTEXT &AContext)
+void OpenGl_View::SetSurfaceDetail (const Visual3d_TypeOfSurfaceDetail theMode)
{
- myLights.Clear();
-
- const int nb_lights = AContext.NbActiveLight;
-
- int i = 0;
- const CALL_DEF_LIGHT *alight = &(AContext.ActiveLight[0]);
- for ( ; i < nb_lights; i++, alight++ )
- {
- OpenGl_Light rep;
-
- switch( alight->LightType )
- {
- case 0 : /* TOLS_AMBIENT */
- rep.type = TLightAmbient;
- rep.col.rgb[0] = alight->Color.r;
- rep.col.rgb[1] = alight->Color.g;
- rep.col.rgb[2] = alight->Color.b;
- break;
-
- case 1 : /* TOLS_DIRECTIONAL */
- rep.type = TLightDirectional;
- rep.col.rgb[0] = alight->Color.r;
- rep.col.rgb[1] = alight->Color.g;
- rep.col.rgb[2] = alight->Color.b;
- rep.dir[0] = alight->Direction.x;
- rep.dir[1] = alight->Direction.y;
- rep.dir[2] = alight->Direction.z;
- break;
-
- case 2 : /* TOLS_POSITIONAL */
- rep.type = TLightPositional;
- rep.col.rgb[0] = alight->Color.r;
- rep.col.rgb[1] = alight->Color.g;
- rep.col.rgb[2] = alight->Color.b;
- rep.pos[0] = alight->Position.x;
- rep.pos[1] = alight->Position.y;
- rep.pos[2] = alight->Position.z;
- rep.atten[0] = alight->Attenuation[0];
- rep.atten[1] = alight->Attenuation[1];
- break;
-
- case 3 : /* TOLS_SPOT */
- rep.type = TLightSpot;
- rep.col.rgb[0] = alight->Color.r;
- rep.col.rgb[1] = alight->Color.g;
- rep.col.rgb[2] = alight->Color.b;
- rep.pos[0] = alight->Position.x;
- rep.pos[1] = alight->Position.y;
- rep.pos[2] = alight->Position.z;
- rep.dir[0] = alight->Direction.x;
- rep.dir[1] = alight->Direction.y;
- rep.dir[2] = alight->Direction.z;
- rep.shine = alight->Concentration;
- rep.atten[0] = alight->Attenuation[0];
- rep.atten[1] = alight->Attenuation[1];
- rep.angle = alight->Angle;
- break;
- }
+ mySurfaceDetail = theMode;
- rep.HeadLight = alight->Headlight;
-
- myLights.Append(rep);
- }
+ myModificationState++;
}
-/*----------------------------------------------------------------------*/
+// =======================================================================
+// function : SetBackfacing
+// purpose :
+// =======================================================================
+void OpenGl_View::SetBackfacing (const Standard_Integer theMode)
+{
+ myBackfacing = theMode;
+}
-//call_togl_setplane
-void OpenGl_View::SetClippingPlanes (const CALL_DEF_VIEWCONTEXT &AContext)
+// =======================================================================
+// function : SetLights
+// purpose :
+// =======================================================================
+void OpenGl_View::SetLights (const CALL_DEF_VIEWCONTEXT& theViewCtx)
{
- // clear clipping planes information
- myClippingPlanes.Clear();
- // update information
- int i = 0;
- for (; i < AContext.NbActivePlane; i++)
+ myLights.Clear();
+ for (Standard_Integer aLightIt = 0; aLightIt < theViewCtx.NbActiveLight; ++aLightIt)
{
- const CALL_DEF_PLANE &aCPlane = AContext.ActivePlane[i];
- if ( aCPlane.Active && aCPlane.PlaneId > 0 )
- {
- OPENGL_CLIP_REP aPlane;
- aPlane.equation[0] = aCPlane.CoefA;
- aPlane.equation[1] = aCPlane.CoefB;
- aPlane.equation[2] = aCPlane.CoefC;
- aPlane.equation[3] = aCPlane.CoefD;
- myClippingPlanes.Append( aPlane );
- }
+ myLights.Append (theViewCtx.ActiveLight[aLightIt]);
}
+ myCurrLightSourceState = myStateCounter->Increment();
}
/*----------------------------------------------------------------------*/
//call_togl_cliplimit
void OpenGl_View::SetClipLimit (const Graphic3d_CView& theCView)
{
- myZClip.Back.Limit =
- (theCView.Context.ZClipBackPlane - theCView.Mapping.BackPlaneDistance) /
- (theCView.Mapping.FrontPlaneDistance - theCView.Mapping.BackPlaneDistance);
- myZClip.Front.Limit =
- (theCView.Context.ZClipFrontPlane - theCView.Mapping.BackPlaneDistance) /
- (theCView.Mapping.FrontPlaneDistance - theCView.Mapping.BackPlaneDistance);
- if (myZClip.Back.Limit < 0.0f)
- myZClip.Back.Limit = 0.0f;
- if (myZClip.Front.Limit > 1.0f)
- myZClip.Front.Limit = 1.0f;
- if (myZClip.Back.Limit > myZClip.Front.Limit)
- {
- myZClip.Back.Limit = 0.0f;
- myZClip.Front.Limit = 1.0f;
- }
+ myZClip.Back.Limit = theCView.Context.ZClipBackPlane;
+ myZClip.Front.Limit = theCView.Context.ZClipFrontPlane;
myZClip.Back.IsOn = (theCView.Context.BackZClipping != 0);
myZClip.Front.IsOn = (theCView.Context.FrontZClipping != 0);
/*----------------------------------------------------------------------*/
-//call_togl_viewmapping
-void OpenGl_View::SetMapping (const Graphic3d_CView& theCView)
-{
- const float ratio = theCView.DefWindow.dy / theCView.DefWindow.dx;
- const float r_ratio = theCView.DefWindow.dx / theCView.DefWindow.dy;
-
- TEL_VIEW_MAPPING Map;
-
- Map.window.xmin = theCView.Mapping.WindowLimit.um;
- Map.window.ymin = theCView.Mapping.WindowLimit.vm;
- Map.window.xmax = theCView.Mapping.WindowLimit.uM;
- Map.window.ymax = theCView.Mapping.WindowLimit.vM;
-
- Map.viewport.xmin = 0.F;
- Map.viewport.xmax = ( 1.F < r_ratio ? 1.F : r_ratio );
- Map.viewport.ymin = 0.F;
- Map.viewport.ymax = ( 1.F < ratio ? 1.F : ratio );
- Map.viewport.zmin = 0.F;
- Map.viewport.zmax = 1.F;
-
- // projection type
- switch (theCView.Mapping.Projection)
- {
- case 0 :
- Map.proj = TelPerspective;
- break;
- case 1 :
- Map.proj = TelParallel;
- break;
- }
-
- // projection reference point
- Map.prp[0] = theCView.Mapping.ProjectionReferencePoint.x;
- Map.prp[1] = theCView.Mapping.ProjectionReferencePoint.y;
- Map.prp[2] = theCView.Mapping.ProjectionReferencePoint.z;
- if (!openglDisplay.IsNull() && !openglDisplay->Walkthrough())
- Map.prp[2] += theCView.Mapping.FrontPlaneDistance;
-
- // view plane distance
- Map.vpd = theCView.Mapping.ViewPlaneDistance;
-
- // back plane distance
- Map.bpd = theCView.Mapping.BackPlaneDistance;
-
- // front plane distance
- Map.fpd = theCView.Mapping.FrontPlaneDistance;
-
- Tint err_ind = 0;
-
- // use user-defined matrix
- if (theCView.Mapping.IsCustomMatrix)
- {
- int i, j;
- for( i = 0; i < 4; i++ )
- for( j = 0; j < 4; j++ )
- myMappingMatrix[i][j] = theCView.Mapping.ProjectionMatrix[i][j];
- }
- else
- TelEvalViewMappingMatrix( &Map, &err_ind, myMappingMatrix );
-
- if (!err_ind)
- myExtra.map = Map;
-}
-
-/*----------------------------------------------------------------------*/
-
-//call_togl_vieworientation
-void OpenGl_View::SetOrientation (const Graphic3d_CView& theCView)
-{
- Tfloat Vrp[3];
- Tfloat Vpn[3];
- Tfloat Vup[3];
- Tfloat ScaleFactors[3];
-
- Vrp[0] = theCView.Orientation.ViewReferencePoint.x;
- Vrp[1] = theCView.Orientation.ViewReferencePoint.y;
- Vrp[2] = theCView.Orientation.ViewReferencePoint.z;
-
- Vpn[0] = theCView.Orientation.ViewReferencePlane.x;
- Vpn[1] = theCView.Orientation.ViewReferencePlane.y;
- Vpn[2] = theCView.Orientation.ViewReferencePlane.z;
-
- Vup[0] = theCView.Orientation.ViewReferenceUp.x;
- Vup[1] = theCView.Orientation.ViewReferenceUp.y;
- Vup[2] = theCView.Orientation.ViewReferenceUp.z;
-
- ScaleFactors[0] = theCView.Orientation.ViewScaleX;
- ScaleFactors[1] = theCView.Orientation.ViewScaleY;
- ScaleFactors[2] = theCView.Orientation.ViewScaleZ;
-
- Tint err_ind = 0;
-
- // use user-defined matrix
- if (theCView.Orientation.IsCustomMatrix)
- {
- int i, j;
- for( i = 0; i < 4; i++ )
- for( j = 0; j < 4; j++ )
- myOrientationMatrix[i][j] = theCView.Orientation.ModelViewMatrix[i][j];
- }
- else
- {
- TelEvalViewOrientationMatrix (Vrp, Vpn, Vup, ScaleFactors, &err_ind, myOrientationMatrix);
- }
-
- if (!err_ind)
- {
- myExtra.vrp[0] = Vrp[0];
- myExtra.vrp[1] = Vrp[1];
- myExtra.vrp[2] = Vrp[2];
-
- myExtra.vpn[0] = Vpn[0];
- myExtra.vpn[1] = Vpn[1];
- myExtra.vpn[2] = Vpn[2];
-
- myExtra.vup[0] = Vup[0];
- myExtra.vup[1] = Vup[1];
- myExtra.vup[2] = Vup[2];
-
- myExtra.scaleFactors[0] = ScaleFactors[0],
- myExtra.scaleFactors[1] = ScaleFactors[1],
- myExtra.scaleFactors[2] = ScaleFactors[2];
- }
-}
-
-/*----------------------------------------------------------------------*/
-
void OpenGl_View::SetFog (const Graphic3d_CView& theCView,
const Standard_Boolean theFlag)
{
{
myFog.IsOn = Standard_True;
- myFog.Front =
- (theCView.Context.DepthFrontPlane - theCView.Mapping.BackPlaneDistance) /
- (theCView.Mapping.FrontPlaneDistance - theCView.Mapping.BackPlaneDistance);
-
- myFog.Back =
- (theCView.Context.DepthBackPlane - theCView.Mapping.BackPlaneDistance) /
- (theCView.Mapping.FrontPlaneDistance - theCView.Mapping.BackPlaneDistance);
-
- if (myFog.Front < 0.F)
- myFog.Front = 0.F;
- else if (myFog.Front > 1.F)
- myFog.Front = 1.F;
-
- if (myFog.Back < 0.F)
- myFog.Back = 0.F;
- else if (myFog.Back > 1.F)
- myFog.Back = 1.F;
-
- if (myFog.Back > myFog.Front)
- {
- myFog.Front = 1.F;
- myFog.Back = 0.F;
- }
+ myFog.Front = theCView.Context.DepthFrontPlane;
+ myFog.Back = theCView.Context.DepthBackPlane;
myFog.Color.rgb[0] = theCView.DefWindow.Background.r;
myFog.Color.rgb[1] = theCView.DefWindow.Background.g;
/*----------------------------------------------------------------------*/
-void OpenGl_View::TriedronDisplay (const Aspect_TypeOfTriedronPosition APosition, const Quantity_NameOfColor AColor,
- const Standard_Real AScale, const Standard_Boolean AsWireframe)
+void OpenGl_View::TriedronDisplay (const Handle(OpenGl_Context)& theCtx,
+ const Aspect_TypeOfTriedronPosition thePosition,
+ const Quantity_NameOfColor theColor,
+ const Standard_Real theScale,
+ const Standard_Boolean theAsWireframe)
{
- myTrihedron = new OpenGl_Trihedron (APosition, AColor, AScale, AsWireframe);
+ OpenGl_Element::Destroy (theCtx, myTrihedron);
+ myTrihedron = new OpenGl_Trihedron (thePosition, theColor, theScale, theAsWireframe);
}
/*----------------------------------------------------------------------*/
-void OpenGl_View::TriedronErase ()
+void OpenGl_View::TriedronErase (const Handle(OpenGl_Context)& theCtx)
{
- myTrihedron.Nullify();
+ OpenGl_Element::Destroy (theCtx, myTrihedron);
}
/*----------------------------------------------------------------------*/
-void OpenGl_View::GraduatedTrihedronDisplay (const Graphic3d_CGraduatedTrihedron &data)
+void OpenGl_View::GraduatedTrihedronDisplay (const Handle(OpenGl_Context)& theCtx,
+ const Graphic3d_CGraduatedTrihedron& theData)
{
- myGraduatedTrihedron = new OpenGl_GraduatedTrihedron(data);
+ OpenGl_Element::Destroy (theCtx, myGraduatedTrihedron);
+ myGraduatedTrihedron = new OpenGl_GraduatedTrihedron (theData);
}
/*----------------------------------------------------------------------*/
-void OpenGl_View::GraduatedTrihedronErase ()
+void OpenGl_View::GraduatedTrihedronErase (const Handle(OpenGl_Context)& theCtx)
{
- myGraduatedTrihedron.Nullify();
+ OpenGl_Element::Destroy (theCtx, myGraduatedTrihedron);
}
/*----------------------------------------------------------------------*/
//transform_persistence_end
-void OpenGl_View::EndTransformPersistence ()
+void OpenGl_View::EndTransformPersistence(const Handle(OpenGl_Context)& theCtx)
{
- if ( myIsTransPers )
+ if (myIsTransPers)
{
- /* restore matrix */
+ // restore matrix
glMatrixMode (GL_PROJECTION);
- glPopMatrix ();
+ glPopMatrix();
glMatrixMode (GL_MODELVIEW);
- glPopMatrix ();
+ glPopMatrix();
myIsTransPers = Standard_False;
+
+ // Note: the approach of accessing OpenGl matrices is used now since the matrix
+ // manipulation are made with help of OpenGl methods. This might be replaced by
+ // direct computation of matrices by OCC subroutines.
+ Tmatrix3 aResultWorldView;
+ glGetFloatv (GL_MODELVIEW_MATRIX, *aResultWorldView);
+
+ Tmatrix3 aResultProjection;
+ glGetFloatv (GL_PROJECTION_MATRIX, *aResultProjection);
+
+ // Set OCCT state uniform variables
+ theCtx->ShaderManager()->RevertWorldViewStateTo (&aResultWorldView);
+ theCtx->ShaderManager()->RevertProjectionStateTo (&aResultProjection);
}
}
/*----------------------------------------------------------------------*/
//transform_persistence_begin
-const TEL_TRANSFORM_PERSISTENCE * OpenGl_View::BeginTransformPersistence (const TEL_TRANSFORM_PERSISTENCE *ATransPers)
+const TEL_TRANSFORM_PERSISTENCE* OpenGl_View::BeginTransformPersistence (const Handle(OpenGl_Context)& theCtx,
+ const TEL_TRANSFORM_PERSISTENCE* theTransPers)
{
- const TEL_TRANSFORM_PERSISTENCE *TransPers_old = myTransPers;
-
- myTransPers = ATransPers;
-
- if ( ATransPers->mode == 0 )
+ const TEL_TRANSFORM_PERSISTENCE* aTransPersPrev = myTransPers;
+ myTransPers = theTransPers;
+ if (theTransPers->mode == 0)
{
- EndTransformPersistence();
- return TransPers_old;
+ EndTransformPersistence (theCtx);
+ return aTransPersPrev;
}
- GLint viewport[4];
- glGetIntegerv (GL_VIEWPORT, viewport);
- GLdouble modelMatrix[4][4];
- glGetDoublev( GL_MODELVIEW_MATRIX, (GLdouble *) modelMatrix );
- GLdouble projMatrix[4][4];
- glGetDoublev( GL_PROJECTION_MATRIX, (GLdouble *) projMatrix );
+ GLint aViewport[4];
+ GLdouble aModelMatrix[4][4];
+ GLdouble aProjMatrix[4][4];
+ glGetIntegerv (GL_VIEWPORT, aViewport);
+ glGetDoublev (GL_MODELVIEW_MATRIX, (GLdouble* )aModelMatrix);
+ glGetDoublev (GL_PROJECTION_MATRIX, (GLdouble *)aProjMatrix);
+ const GLdouble aViewportW = (GLdouble )aViewport[2];
+ const GLdouble aViewportH = (GLdouble )aViewport[3];
- double W = viewport[2];
- double H = viewport[3];
-
- if ( myIsTransPers )
+ if (myIsTransPers)
{
- /* restore matrix */
+ // pop matrix stack - it will be overridden later
glMatrixMode (GL_PROJECTION);
- glPopMatrix ();
+ glPopMatrix();
glMatrixMode (GL_MODELVIEW);
- glPopMatrix ();
+ glPopMatrix();
}
else
+ {
myIsTransPers = Standard_True;
+ }
- glMatrixMode( GL_MODELVIEW );
+ // push matrices into stack and reset them
+ glMatrixMode (GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
- glMatrixMode( GL_PROJECTION );
+ glMatrixMode (GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
- /*pre loading matrix*/
- if( ATransPers->mode & TPF_PAN )
- /* Annulate translate matrix */
+ // get the window's (fixed) coordinates for theTransPers->point before matrixes modifications
+ GLdouble aWinX = 0.0, aWinY = 0.0, aWinZ = 0.0;
+ if ((theTransPers->mode & TPF_PAN) != TPF_PAN)
{
- modelMatrix[3][0] = 0.;
- modelMatrix[3][1] = 0.;
- modelMatrix[3][2] = 0.;
- projMatrix[3][0] = 0.;
- projMatrix[3][1] = 0.;
- projMatrix[3][2] = 0.;
+ gluProject (theTransPers->pointX, theTransPers->pointY, theTransPers->pointZ,
+ (GLdouble* )aModelMatrix, (GLdouble* )aProjMatrix, aViewport,
+ &aWinX, &aWinY, &aWinZ);
}
- if( ATransPers->mode & TPF_ZOOM )
- /* Annulate zoom matrix */
+ // prevent zooming
+ if ((theTransPers->mode & TPF_ZOOM)
+ || (theTransPers->mode == TPF_TRIEDRON))
{
- const double scaleX = myExtra.scaleFactors[0];
- const double scaleY = myExtra.scaleFactors[1];
- const double scaleZ = myExtra.scaleFactors[2];
+ // compute fixed-zoom multiplier
+ // actually function works ugly with TelPerspective!
+ const GLdouble aDet2 = 0.002 / (aViewportW > aViewportH ? aProjMatrix[1][1] : aProjMatrix[0][0]);
+ aProjMatrix[0][0] *= aDet2;
+ aProjMatrix[1][1] *= aDet2;
+ aProjMatrix[2][2] *= aDet2;
+ }
+
+ // prevent translation - annulate translate matrix
+ if ((theTransPers->mode & TPF_PAN)
+ || (theTransPers->mode == TPF_TRIEDRON))
+ {
+ aModelMatrix[3][0] = 0.0;
+ aModelMatrix[3][1] = 0.0;
+ aModelMatrix[3][2] = 0.0;
+ aProjMatrix [3][0] = 0.0;
+ aProjMatrix [3][1] = 0.0;
+ aProjMatrix [3][2] = 0.0;
+ }
+ // prevent scaling-on-axis
+ if (theTransPers->mode & TPF_ZOOM)
+ {
+ const gp_Pnt anAxialScale = myCamera->AxialScale();
+ const double aScaleX = anAxialScale.X();
+ const double aScaleY = anAxialScale.Y();
+ const double aScaleZ = anAxialScale.Z();
for (int i = 0; i < 3; ++i)
{
- modelMatrix[0][i] /= scaleX;
- modelMatrix[1][i] /= scaleY;
- modelMatrix[2][i] /= scaleZ;
+ aModelMatrix[0][i] /= aScaleX;
+ aModelMatrix[1][i] /= aScaleY;
+ aModelMatrix[2][i] /= aScaleZ;
}
+ }
- const double det2 = 0.002 / ( W > H ? projMatrix[1][1] : projMatrix[0][0]);
- projMatrix[0][0] *= det2;
- projMatrix[1][1] *= det2;
+ // prevent rotating - annulate rotate matrix
+ if (theTransPers->mode & TPF_ROTATE)
+ {
+ aModelMatrix[0][0] = 1.0;
+ aModelMatrix[1][1] = 1.0;
+ aModelMatrix[2][2] = 1.0;
+
+ aModelMatrix[1][0] = 0.0;
+ aModelMatrix[2][0] = 0.0;
+ aModelMatrix[0][1] = 0.0;
+ aModelMatrix[2][1] = 0.0;
+ aModelMatrix[0][2] = 0.0;
+ aModelMatrix[1][2] = 0.0;
}
- if( ATransPers->mode & TPF_ROTATE )
- /* Annulate rotate matrix */
+ // load computed matrices
+ glMatrixMode (GL_MODELVIEW);
+ glMultMatrixd ((GLdouble* )aModelMatrix);
+
+ glMatrixMode (GL_PROJECTION);
+ glMultMatrixd ((GLdouble* )aProjMatrix);
+
+ if (theTransPers->mode == TPF_TRIEDRON)
{
- modelMatrix[0][0] = 1.;
- modelMatrix[1][1] = 1.;
- modelMatrix[2][2] = 1.;
-
- modelMatrix[1][0] = 0.;
- modelMatrix[2][0] = 0.;
- modelMatrix[0][1] = 0.;
- modelMatrix[2][1] = 0.;
- modelMatrix[0][2] = 0.;
- modelMatrix[1][2] = 0.;
+ // move to the window corner
+ if (theTransPers->pointX != 0.0
+ && theTransPers->pointY != 0.0)
+ {
+ GLdouble aW1, aH1, aW2, aH2, aDummy;
+ glMatrixMode (GL_PROJECTION);
+ gluUnProject ( 0.5 * aViewportW, 0.5 * aViewportH, 0.0,
+ (GLdouble* )THE_IDENTITY_MATRIX, (GLdouble* )aProjMatrix, aViewport,
+ &aW1, &aH1, &aDummy);
+ gluUnProject (-0.5 * aViewportW, -0.5 * aViewportH, 0.0,
+ (GLdouble* )THE_IDENTITY_MATRIX, (GLdouble* )aProjMatrix, aViewport,
+ &aW2, &aH2, &aDummy);
+ GLdouble aMoveX = 0.5 * (aW1 - aW2 - theTransPers->pointZ);
+ GLdouble aMoveY = 0.5 * (aH1 - aH2 - theTransPers->pointZ);
+ aMoveX = (theTransPers->pointX > 0.0) ? aMoveX : -aMoveX;
+ aMoveY = (theTransPers->pointY > 0.0) ? aMoveY : -aMoveY;
+ glTranslated (aMoveX, aMoveY, 0.0);
+ }
}
- else if( ATransPers->mode & TPF_RELATIVE_ROTATE )
- /* Initialize relative rotate matrix*/
+ else if ((theTransPers->mode & TPF_PAN) != TPF_PAN)
{
- modelMatrix[3][0] = 0.;
- modelMatrix[3][1] = 0.;
- modelMatrix[3][2] = 0.;
+ // move to thePoint using saved win-coordinates ('marker-behaviour')
+ GLdouble aMoveX, aMoveY, aMoveZ;
+ glGetDoublev (GL_MODELVIEW_MATRIX, (GLdouble* )aModelMatrix);
+ glGetDoublev (GL_PROJECTION_MATRIX, (GLdouble* )aProjMatrix);
+ gluUnProject (aWinX, aWinY, aWinZ,
+ (GLdouble* )aModelMatrix, (GLdouble* )aProjMatrix, aViewport,
+ &aMoveX, &aMoveY, &aMoveZ);
- glMatrixMode( GL_MODELVIEW );
- glLoadIdentity();
- glTranslated( ATransPers->pointX, ATransPers->pointY, ATransPers->pointZ );
+ glMatrixMode (GL_MODELVIEW);
+ glTranslated (aMoveX, aMoveY, aMoveZ);
}
- if( ATransPers->mode == TPF_TRIEDRON )
- {
- /* Annulate translation matrix */
- modelMatrix[3][0] = 0.;
- modelMatrix[3][1] = 0.;
- modelMatrix[3][2] = 0.;
-
- projMatrix[3][0] = 0.;
- projMatrix[3][1] = 0.;
- projMatrix[3][2] = 0.;
-
- const double det2 = 0.002 / ( W > H ? projMatrix[1][1] : projMatrix[0][0]);
- projMatrix[0][0] *= det2;
- projMatrix[1][1] *= det2;
- }
+ // Note: the approach of accessing OpenGl matrices is used now since the matrix
+ // manipulation are made with help of OpenGl methods. This might be replaced by
+ // direct computation of matrices by OCC subroutines.
+ Tmatrix3 aResultWorldView;
+ glGetFloatv (GL_MODELVIEW_MATRIX, *aResultWorldView);
- /* load matrix */
- glMatrixMode (GL_MODELVIEW);
- glMultMatrixd ((GLdouble *) modelMatrix);
+ Tmatrix3 aResultProjection;
+ glGetFloatv (GL_PROJECTION_MATRIX, *aResultProjection);
- glMatrixMode (GL_PROJECTION);
- glMultMatrixd ((GLdouble *) projMatrix);
+ // Set OCCT state uniform variables
+ theCtx->ShaderManager()->UpdateWorldViewStateTo (&aResultWorldView);
+ theCtx->ShaderManager()->UpdateProjectionStateTo (&aResultProjection);
- /*post loading matrix*/
- if( ATransPers->mode == TPF_TRIEDRON )
- {
- glMatrixMode( GL_PROJECTION );
+ return aTransPersPrev;
+}
- double winx, winy, winz;
- const GLdouble idenMatrix[4][4] = { {1.,0.,0.,0.}, {0.,1.,0.,0.}, {0.,0.,1.,0.}, {0.,0.,0.,1.} };
+/*----------------------------------------------------------------------*/
- gluUnProject( W/2., H/2., 0., (GLdouble*)idenMatrix, (GLdouble*)projMatrix, (GLint*)viewport, &winx, &winy, &winz);
- double W1, H1;
- W1 = winx;
- H1 = winy;
- gluUnProject( -W/2., -H/2., 0., (GLdouble*)idenMatrix, (GLdouble*)projMatrix, (GLint*)viewport, &winx, &winy, &winz);
- double W2, H2;
- W2 = winx;
- H2 = winy;
+void OpenGl_View::GetMatrices (TColStd_Array2OfReal& theMatOrient,
+ TColStd_Array2OfReal& theMatMapping) const
+{
+ const Graphic3d_Mat4d& aProj = myCamera->ProjectionMatrix();
+ const Graphic3d_Mat4d& aOrient = myCamera->OrientationMatrix();
- if( ATransPers->pointX == 0. && ATransPers->pointY == 0. )
- {
- /*center*/
- }
- else if( ATransPers->pointX > 0. && ATransPers->pointY > 0. )
- {
- /*right upper*/
- glTranslated( 0.5*(W1 - W2 - ATransPers->pointZ), 0.5*(H1 - H2 - ATransPers->pointZ), 0. );
- }
- else if( ATransPers->pointX > 0. && ATransPers->pointY < 0. )
- {
- /*right lower*/
- glTranslated( 0.5*(W1 - W2 - ATransPers->pointZ), 0.5*(H2 - H1 + ATransPers->pointZ), 0. );
- }
- else if( ATransPers->pointX < 0. && ATransPers->pointY > 0. )
- {
- /*left upper*/
- glTranslated( 0.5*(W2 - W1 + ATransPers->pointZ), 0.5*(H1 - H2 - ATransPers->pointZ), 0. );
- }
- else if( ATransPers->pointX < 0 && ATransPers->pointY < 0 )
+ for (Standard_Integer aRow = 0; aRow < 4; ++aRow)
+ {
+ for (Standard_Integer aCol = 0; aCol < 4; ++aCol)
{
- /*left lower*/
- glTranslated( -(W1 - W2)/2. + ATransPers->pointZ/2., -(H1-H2)/2. + ATransPers->pointZ/2., 0. );
+ theMatOrient (aRow, aCol) = aOrient.GetValue (aRow, aCol);
+ theMatMapping (aRow, aCol) = aProj .GetValue (aRow, aCol);
}
}
-
- return TransPers_old;
}
-
/*----------------------------------------------------------------------*/
projects / occt.git / blobdiff