-// File: OpenGl_Workspace.cxx
-// Created: 20 September 2011
-// Author: Sergey ZERCHANINOV
-// Copyright: OPEN CASCADE 2011
+// 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_GlCore11.hxx>
+#ifdef HAVE_CONFIG_H
+ #include <config.h>
+#endif
-#include <InterfaceGraphic.hxx>
+#include <OpenGl_GlCore15.hxx>
-#include <OpenGl_Workspace.hxx>
+#include <InterfaceGraphic.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_Structure.hxx>
+#include <OpenGl_Texture.hxx>
+#include <OpenGl_View.hxx>
+#include <OpenGl_Workspace.hxx>
-#include <OpenGl_TextureBox.hxx>
+#include <Graphic3d_TextureParams.hxx>
+
+#if defined(_WIN32) && defined(HAVE_VIDEOCAPTURE)
+ #include <OpenGl_AVIWriter.hxx>
+#endif
IMPLEMENT_STANDARD_HANDLE(OpenGl_Workspace,OpenGl_Window)
IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Workspace,OpenGl_Window)
namespace
{
- static const TEL_COLOUR myDefaultHighlightColor = { { 1.F, 1.F, 1.F, 1.F } };
+ 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;
{ 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 (const Handle(OpenGl_Display)& theDisplay,
+OpenGl_Workspace::OpenGl_Workspace (const Handle(Aspect_DisplayConnection)& theDisplayConnection,
const CALL_DEF_WINDOW& theCWindow,
- Aspect_RenderingContext theGContext)
-: OpenGl_Window (theDisplay, theCWindow, theGContext),
- myIsUpdated (Standard_False),
- myTransientList (0),
- myIsTransientOpen (Standard_False),
- myRetainMode (Standard_False),
+ Aspect_RenderingContext theGContext,
+ const Handle(OpenGl_Caps)& theCaps,
+ const Handle(OpenGl_Context)& theShareCtx)
+: OpenGl_Window (theDisplayConnection, theCWindow, theGContext, theCaps, theShareCtx),
+ NamedStatus (0),
+ HighlightColor (&THE_WHITE_COLOR),
+ //
+ myComputeInitStatus (OpenGl_RT_NONE),
+ myIsRaytraceDataValid (Standard_False),
+ myViewModificationStatus (0),
+ myLayersModificationStatus (0),
+ //
+ myRaytraceFilter (new OpenGl_RaytraceFilter()),
+ myToRedrawGL (Standard_True),
+ myAntiAliasingMode (3),
+ myTransientDrawToFront (Standard_True),
+ myBackBufferRestored (Standard_False),
+ myIsImmediateDrawn (Standard_False),
myUseTransparency (Standard_False),
myUseZBuffer (Standard_False),
myUseDepthTest (Standard_True),
myUseGLLight (Standard_True),
- myBackBufferRestored (Standard_False),
+ myIsCullingEnabled (Standard_False),
+ myFrameCounter (0),
//
- NamedStatus (0),
- DegenerateModel (0),
- SkipRatio (0.F),
- HighlightColor (&myDefaultHighlightColor),
AspectLine_set (&myDefaultAspectLine),
AspectLine_applied (NULL),
AspectFace_set (&myDefaultAspectFace),
TextParam_applied (NULL),
ViewMatrix_applied (&myDefaultMatrix),
StructureMatrix_applied (&myDefaultMatrix),
- PolygonOffset_applied (NULL)
+ myCullingMode (TelCullUndefined),
+ myModelViewMatrix (myDefaultMatrix),
+ PolygonOffset_applied (THE_DEFAULT_POFFSET)
{
- theDisplay->InitAttributes();
+ 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
// 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);
+ glLightModeli ((GLenum )GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
// Optimisation pour le Fog et l'antialiasing
glHint (GL_FOG_HINT, GL_FASTEST);
glHint (GL_LINE_SMOOTH_HINT, GL_FASTEST);
glHint (GL_POLYGON_SMOOTH_HINT, GL_FASTEST);
- // Polygon Offset
- EnablePolygonOffset();
+ // AA mode
+ const char* anAaEnv = ::getenv ("CALL_OPENGL_ANTIALIASING_MODE");
+ if (anAaEnv != NULL)
+ {
+ int v;
+ if (sscanf (anAaEnv, "%d", &v) > 0) myAntiAliasingMode = v;
+ }
+}
+
+// =======================================================================
+// function : SetImmediateModeDrawToFront
+// purpose :
+// =======================================================================
+Standard_Boolean OpenGl_Workspace::SetImmediateModeDrawToFront (const Standard_Boolean theDrawToFrontBuffer)
+{
+ const Standard_Boolean aPrevMode = myTransientDrawToFront;
+ myTransientDrawToFront = theDrawToFrontBuffer;
+ return aPrevMode;
}
// =======================================================================
// =======================================================================
OpenGl_Workspace::~OpenGl_Workspace()
{
+ if (!myLineAttribs.IsNull())
+ {
+ myLineAttribs.Nullify();
+ myGlContext->ReleaseResource ("OpenGl_LineAttributes", Standard_True);
+ }
+
+ ReleaseRaytraceResources();
}
// =======================================================================
if (!OpenGl_Window::Activate())
return Standard_False;
- NamedStatus = IsTextureEnabled() ? OPENGL_NS_TEXTURE : 0;
- DegenerateModel = 0;
- SkipRatio = 0.0f;
- HighlightColor = &myDefaultHighlightColor;
- AspectLine_set = &myDefaultAspectLine;
- AspectLine_applied = NULL;
- AspectFace_set = &myDefaultAspectFace;
- AspectFace_applied = NULL;
- AspectMarker_set = &myDefaultAspectMarker;
- AspectMarker_applied = NULL;
- AspectText_set = &myDefaultAspectText;
- AspectText_applied = NULL;
- TextParam_set = &myDefaultTextParam;
- TextParam_applied = NULL;
ViewMatrix_applied = &myDefaultMatrix;
StructureMatrix_applied = &myDefaultMatrix;
- PolygonOffset_applied = NULL;
- return Standard_True;
+
+ ResetAppliedAspect();
+
+ return Standard_True;
}
// =======================================================================
// =======================================================================
void OpenGl_Workspace::UseTransparency (const Standard_Boolean theFlag)
{
- if ((myUseTransparency ? 1 : 0) != (theFlag ? 1 : 0))
+ myUseTransparency = theFlag;
+}
+
+//=======================================================================
+//function : ResetAppliedAspect
+//purpose : Sets default values of GL parameters in accordance with default aspects
+//=======================================================================
+void OpenGl_Workspace::ResetAppliedAspect()
+{
+ 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;
+ AspectText_set = &myDefaultAspectText;
+ AspectText_applied = NULL;
+ TextParam_set = &myDefaultTextParam;
+ TextParam_applied = NULL;
+ PolygonOffset_applied = THE_DEFAULT_POFFSET;
+ myCullingMode = TelCullUndefined;
+
+ AspectLine(Standard_True);
+ AspectFace(Standard_True);
+ AspectMarker(Standard_True);
+ AspectText(Standard_True);
+}
+
+// =======================================================================
+// function : DisableTexture
+// purpose :
+// =======================================================================
+Handle(OpenGl_Texture) OpenGl_Workspace::DisableTexture()
+{
+ if (myTextureBound.IsNull())
+ {
+ return myTextureBound;
+ }
+
+ // reset texture matrix because some code may expect it is identity
+ GLint aMatrixMode = GL_TEXTURE;
+ glGetIntegerv (GL_MATRIX_MODE, &aMatrixMode);
+ glMatrixMode (GL_TEXTURE);
+ glLoadIdentity();
+ glMatrixMode (aMatrixMode);
+
+ myTextureBound->Unbind (myGlContext);
+ switch (myTextureBound->GetTarget())
+ {
+ case GL_TEXTURE_1D:
+ {
+ if (myTextureBound->GetParams()->GenMode() != GL_NONE)
+ {
+ glDisable (GL_TEXTURE_GEN_S);
+ }
+ glDisable (GL_TEXTURE_1D);
+ break;
+ }
+ case GL_TEXTURE_2D:
+ {
+ 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);
+ 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;
+ }
+
+ GLint aMatrixMode = GL_TEXTURE;
+ glGetIntegerv (GL_MATRIX_MODE, &aMatrixMode);
+
+ // setup texture matrix
+ glMatrixMode (GL_TEXTURE);
+ glLoadIdentity();
+ const Graphic3d_Vec2& aScale = aParams->Scale();
+ const Graphic3d_Vec2& aTrans = aParams->Translation();
+ glScalef ( aScale.x(), aScale.y(), 1.0f);
+ glTranslatef (-aTrans.x(), -aTrans.y(), 0.0f);
+ glRotatef (-aParams->Rotation(), 0.0f, 0.0f, 1.0f);
+
+ // 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:
+ {
+ glMatrixMode (GL_MODELVIEW);
+ glPushMatrix();
+ glLoadIdentity();
+
+ 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());
+ }
+ glPopMatrix();
+ break;
+ }
+ case Graphic3d_TOTM_SPRITE:
+ {
+ if (GetGlContext()->core20 != NULL)
+ {
+ glEnable (GL_POINT_SPRITE);
+ glTexEnvi (GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE);
+ glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+ GetGlContext()->core15->glPointParameteri (GL_POINT_SPRITE_COORD_ORIGIN, GL_LOWER_LEFT);
+ }
+ break;
+ }
+ case Graphic3d_TOTM_MANUAL:
+ default: break;
+ }
+
+ // setup lighting
+ if (aParams->GenMode() != Graphic3d_TOTM_SPRITE)
+ {
+ glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, aParams->IsModulate() ? GL_MODULATE : GL_DECAL);
+ }
+
+ // 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 : GL_CLAMP;
+ switch (theTexture->GetTarget())
+ {
+ case GL_TEXTURE_1D:
+ {
+ 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);
+ break;
+ }
+ 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();
+ switch (aParams->AnisoFilter())
+ {
+ case Graphic3d_LOTA_QUALITY:
+ {
+ glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, aMaxDegree);
+ break;
+ }
+ case Graphic3d_LOTA_MIDDLE:
+ {
+
+ glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, (aMaxDegree <= 4) ? 2 : (aMaxDegree / 2));
+ break;
+ }
+ case Graphic3d_LOTA_FAST:
+ {
+ glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 2);
+ break;
+ }
+ case Graphic3d_LOTA_OFF:
+ default:
+ {
+ glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1);
+ break;
+ }
+ }
+ }
+ }
+ 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);
+ break;
+ }
+ default: break;
+ }
+
+ switch (theTexture->GetTarget())
+ {
+ case GL_TEXTURE_1D:
+ {
+ if (aParams->GenMode() != Graphic3d_TOTM_MANUAL)
+ {
+ glEnable (GL_TEXTURE_GEN_S);
+ }
+ glEnable (GL_TEXTURE_1D);
+ break;
+ }
+ case GL_TEXTURE_2D:
+ {
+ if (aParams->GenMode() != Graphic3d_TOTM_MANUAL)
+ {
+ glEnable (GL_TEXTURE_GEN_S);
+ glEnable (GL_TEXTURE_GEN_T);
+ }
+ glEnable (GL_TEXTURE_2D);
+ break;
+ }
+ default: break;
+ }
+
+ glMatrixMode (aMatrixMode); // turn back active matrix
+ 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);
+
+ return aPrevTexture;
+}
+
+// =======================================================================
+// function : Redraw
+// purpose :
+// =======================================================================
+void OpenGl_Workspace::Redraw (const Graphic3d_CView& theCView,
+ const Aspect_CLayer2d& theCUnderLayer,
+ const Aspect_CLayer2d& theCOverLayer)
+{
+ if (!Activate())
+ {
+ return;
+ }
+
+ ++myFrameCounter;
+ myIsCullingEnabled = theCView.IsCullingEnabled;
+
+ // release pending GL resources
+ Handle(OpenGl_Context) aGlCtx = GetGlContext();
+ aGlCtx->ReleaseDelayed();
+
+ // fetch OpenGl context state
+ aGlCtx->FetchState();
+
+ Tint toSwap = (aGlCtx->IsRender()); // swap buffers
+ GLint aViewPortBack[4];
+ OpenGl_FrameBuffer* aFrameBuffer = (OpenGl_FrameBuffer* )theCView.ptrFBO;
+ if (aFrameBuffer != NULL)
+ {
+ glGetIntegerv (GL_VIEWPORT, aViewPortBack);
+ aFrameBuffer->SetupViewport (aGlCtx);
+ toSwap = 0; // no need to swap buffers
+ }
+
+ myToRedrawGL = Standard_True;
+ if (theCView.RenderParams.Method == Graphic3d_RM_RAYTRACING
+ && myComputeInitStatus != OpenGl_RT_FAIL)
+ {
+ if (UpdateRaytraceGeometry (OpenGl_GUM_CHECK) && myIsRaytraceDataValid)
+ {
+ myToRedrawGL = Standard_False;
+
+ // Only non-raytracable structures should be rendered in OpenGL mode.
+ Handle(OpenGl_RenderFilter) aRenderFilter = GetRenderFilter();
+ myRaytraceFilter->SetPrevRenderFilter (aRenderFilter);
+ SetRenderFilter (myRaytraceFilter);
+
+ Standard_Integer aSizeX = aFrameBuffer != NULL ? aFrameBuffer->GetVPSizeX() : myWidth;
+ Standard_Integer aSizeY = aFrameBuffer != NULL ? aFrameBuffer->GetVPSizeY() : myHeight;
+
+ if (myOpenGlFBO.IsNull())
+ {
+ myOpenGlFBO = new OpenGl_FrameBuffer();
+ }
+ if (myOpenGlFBO->GetVPSizeX() != aSizeX
+ || myOpenGlFBO->GetVPSizeY() != aSizeY)
+ {
+ myOpenGlFBO->Init (aGlCtx, aSizeX, aSizeY);
+ }
+
+ // OverLayer and UnderLayer shouldn't be drawn by OpenGL.
+ // They will be drawn during ray-tracing.
+ Aspect_CLayer2d anEmptyCLayer;
+ anEmptyCLayer.ptrLayer = NULL;
+
+ myOpenGlFBO->BindBuffer (aGlCtx);
+ redraw1 (theCView, anEmptyCLayer, anEmptyCLayer, 0);
+ myOpenGlFBO->UnbindBuffer (aGlCtx);
+
+ const Standard_Boolean isImmediate = !myView->ImmediateStructures().IsEmpty();
+ Raytrace (theCView, aSizeX, aSizeY, isImmediate ? 0 : toSwap,
+ theCOverLayer, theCUnderLayer, aFrameBuffer);
+
+ if (isImmediate)
+ {
+ RedrawImmediate (theCView, theCUnderLayer, theCOverLayer, Standard_True);
+ }
+
+ SetRenderFilter (aRenderFilter);
+
+ theCView.WasRedrawnGL = Standard_False;
+ }
+ }
+
+ if (myToRedrawGL)
+ {
+ // draw entire frame using normal OpenGL pipeline
+ if (aFrameBuffer != NULL)
+ {
+ aFrameBuffer->BindBuffer (aGlCtx);
+ }
+
+ const Standard_Boolean isImmediate = !myView->ImmediateStructures().IsEmpty();
+ redraw1 (theCView, theCUnderLayer, theCOverLayer, isImmediate ? 0 : toSwap);
+ if (isImmediate)
+ {
+ RedrawImmediate (theCView, theCUnderLayer, theCOverLayer, Standard_True);
+ }
+
+ theCView.WasRedrawnGL = Standard_True;
+ }
+
+ if (aFrameBuffer != NULL)
+ {
+ aFrameBuffer->UnbindBuffer (aGlCtx);
+ // move back original viewport
+ glViewport (aViewPortBack[0], aViewPortBack[1], aViewPortBack[2], aViewPortBack[3]);
+ }
+
+#if defined(_WIN32) && defined(HAVE_VIDEOCAPTURE)
+ if (OpenGl_AVIWriter_AllowWriting (theCView.DefWindow.XWindow))
+ {
+ GLint params[4];
+ glGetIntegerv (GL_VIEWPORT, params);
+ int nWidth = params[2] & ~0x7;
+ int nHeight = params[3] & ~0x7;
+
+ const int nBitsPerPixel = 24;
+ GLubyte* aDumpData = new GLubyte[nWidth * nHeight * nBitsPerPixel / 8];
+
+ glPixelStorei (GL_PACK_ALIGNMENT, 1);
+ glReadPixels (0, 0, nWidth, nHeight, GL_BGR_EXT, GL_UNSIGNED_BYTE, aDumpData);
+ OpenGl_AVIWriter_AVIWriter (aDumpData, nWidth, nHeight, nBitsPerPixel);
+ delete[] aDumpData;
+ }
+#endif
+
+ // reset render mode state
+ aGlCtx->FetchState();
+}
+
+// =======================================================================
+// function : redraw1
+// purpose :
+// =======================================================================
+void OpenGl_Workspace::redraw1 (const Graphic3d_CView& theCView,
+ const Aspect_CLayer2d& theCUnderLayer,
+ const Aspect_CLayer2d& theCOverLayer,
+ const int theToSwap)
+{
+ if (myView.IsNull())
+ {
+ return;
+ }
+
+ // request reset of material
+ NamedStatus |= OPENGL_NS_RESMAT;
+
+ GLbitfield toClear = GL_COLOR_BUFFER_BIT;
+ if (myUseZBuffer)
+ {
+ glDepthFunc (GL_LEQUAL);
+ glDepthMask (GL_TRUE);
+ if (myUseDepthTest)
+ {
+ glEnable (GL_DEPTH_TEST);
+ }
+ else
+ {
+ glDisable (GL_DEPTH_TEST);
+ }
+
+ glClearDepth (1.0);
+ toClear |= GL_DEPTH_BUFFER_BIT;
+ }
+ else
+ {
+ glDisable (GL_DEPTH_TEST);
+ }
+
+ if (!ToRedrawGL())
+ {
+ // set background to black
+ glClearColor (0.0f, 0.0f, 0.0f, 0.0f);
+ toClear |= GL_DEPTH_BUFFER_BIT; //
+ }
+ else
+ {
+ if (NamedStatus & OPENGL_NS_WHITEBACK)
+ {
+ // set background to white
+ glClearColor (1.0f, 1.0f, 1.0f, 1.0f);
+ toClear |= GL_DEPTH_BUFFER_BIT;
+ }
+ else
+ {
+ glClearColor (myBgColor.rgb[0], myBgColor.rgb[1], myBgColor.rgb[2], 0.0f);
+ }
+ }
+ glClear (toClear);
+
+ Handle(OpenGl_Workspace) aWS (this);
+ myView->Render (myPrintContext, aWS, theCView, theCUnderLayer, theCOverLayer);
+
+ // swap the buffers
+ if (theToSwap)
+ {
+ GetGlContext()->SwapBuffers();
+ myBackBufferRestored = Standard_False;
+ myIsImmediateDrawn = Standard_False;
+ }
+ else
+ {
+ glFlush(); //
+ myBackBufferRestored = Standard_True;//
+ myIsImmediateDrawn = Standard_False;//
+ }
+}
+
+// =======================================================================
+// function : copyBackToFront
+// purpose :
+// =======================================================================
+void OpenGl_Workspace::copyBackToFront()
+{
+ glMatrixMode (GL_PROJECTION);
+ glPushMatrix();
+ glLoadIdentity();
+ gluOrtho2D (0.0, (GLdouble )myWidth, 0.0, (GLdouble )myHeight);
+ glMatrixMode (GL_MODELVIEW);
+ glPushMatrix();
+ glLoadIdentity();
+
+ DisableFeatures();
+
+ glDrawBuffer (GL_FRONT);
+ glReadBuffer (GL_BACK);
+
+ glRasterPos2i (0, 0);
+ glCopyPixels (0, 0, myWidth + 1, myHeight + 1, GL_COLOR);
+
+ EnableFeatures();
+
+ glMatrixMode (GL_PROJECTION);
+ glPopMatrix();
+ glMatrixMode (GL_MODELVIEW);
+ glPopMatrix();
+
+ glDrawBuffer (GL_BACK);
+
+ myIsImmediateDrawn = Standard_False;
+}
+
+// =======================================================================
+// function : DisplayCallback
+// purpose :
+// =======================================================================
+void OpenGl_Workspace::DisplayCallback (const Graphic3d_CView& theCView,
+ Standard_Integer theReason)
+{
+ if (theCView.GDisplayCB == NULL)
+ {
+ return;
+ }
+
+ Aspect_GraphicCallbackStruct aCallData;
+ aCallData.reason = theReason;
+ aCallData.glContext = GetGlContext();
+ aCallData.wsID = theCView.WsId;
+ aCallData.viewID = theCView.ViewId;
+ theCView.GDisplayCB (theCView.DefWindow.XWindow, theCView.GClientData, &aCallData);
+}
+
+// =======================================================================
+// function : RedrawImmediate
+// purpose :
+// =======================================================================
+void OpenGl_Workspace::RedrawImmediate (const Graphic3d_CView& theCView,
+ const Aspect_CLayer2d& theCUnderLayer,
+ const Aspect_CLayer2d& theCOverLayer,
+ const Standard_Boolean theToForce)
+{
+ if (!Activate())
+ {
+ return;
+ }
+
+ GLboolean isDoubleBuffer = GL_FALSE;
+ glGetBooleanv (GL_DOUBLEBUFFER, &isDoubleBuffer);
+ if (myView->ImmediateStructures().IsEmpty())
+ {
+ if (theToForce
+ || !myIsImmediateDrawn)
+ {
+ myIsImmediateDrawn = Standard_False;
+ return;
+ }
+
+ if (myBackBufferRestored
+ && isDoubleBuffer)
+ {
+ copyBackToFront();
+ glFlush();
+ }
+ else
+ {
+ Redraw (theCView, theCUnderLayer, theCOverLayer);
+ }
+ return;
+ }
+
+ if (isDoubleBuffer && myTransientDrawToFront)
+ {
+ if (!myBackBufferRestored)
+ {
+ Redraw (theCView, theCUnderLayer, theCOverLayer);
+ return;
+ }
+ copyBackToFront();
+ MakeFrontBufCurrent();
+ }
+ else
+ {
+ myBackBufferRestored = Standard_False;
+ }
+ myIsImmediateDrawn = Standard_True;
+
+ NamedStatus |= OPENGL_NS_IMMEDIATE;
+ ///glDisable (GL_LIGHTING);
+ glDisable (GL_DEPTH_TEST);
+
+ Handle(OpenGl_Workspace) aWS (this);
+ for (OpenGl_SequenceOfStructure::Iterator anIter (myView->ImmediateStructures());
+ anIter.More(); anIter.Next())
+ {
+ const OpenGl_Structure* aStructure = anIter.Value();
+ aStructure->Render (aWS);
+ }
+
+ NamedStatus &= ~OPENGL_NS_IMMEDIATE;
+
+ if (isDoubleBuffer && myTransientDrawToFront)
{
- myUseTransparency = theFlag;
- EraseAnimation();
- myIsUpdated = Standard_False;
+ glFlush();
+ MakeBackBufCurrent();
}
}
projects / occt.git / blobdiff