1 // Created on: 2011-10-20
2 // Created by: Sergey ZERCHANINOV
3 // Copyright (c) 2011-2012 OPEN CASCADE SAS
5 // The content of this file is subject to the Open CASCADE Technology Public
6 // License Version 6.5 (the "License"). You may not use the content of this file
7 // except in compliance with the License. Please obtain a copy of the License
8 // at http://www.opencascade.org and read it completely before using this file.
10 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
11 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
13 // The Original Code and all software distributed under the License is
14 // distributed on an "AS IS" basis, without warranty of any kind, and the
15 // Initial Developer hereby disclaims all such warranties, including without
16 // limitation, any warranties of merchantability, fitness for a particular
17 // purpose or non-infringement. Please see the License for the specific terms
18 // and conditions governing the rights and limitations under the License.
21 #include <OpenGl_GraphicDriver.hxx>
23 #include <OpenGl_FrameBuffer.hxx>
25 #include <OpenGl_Structure.hxx>
26 #include <OpenGl_CView.hxx>
27 #include <OpenGl_Display.hxx>
29 /*----------------------------------------------------------------------*/
31 void OpenGl_GraphicDriver::ActivateView (const Graphic3d_CView& ACView)
33 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
35 aCView->WS->SetActiveView(aCView->View);
38 void OpenGl_GraphicDriver::AntiAliasing (const Graphic3d_CView& ACView, const Standard_Boolean AFlag)
40 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
42 aCView->View->SetAntiAliasing(AFlag);
45 void OpenGl_GraphicDriver::Background (const Graphic3d_CView& ACView)
47 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
50 aCView->WS->SetBackgroundColor(ACView.DefWindow.Background.r,ACView.DefWindow.Background.g,ACView.DefWindow.Background.b);
54 void OpenGl_GraphicDriver::GradientBackground (const Graphic3d_CView& ACView,
55 const Quantity_Color& AColor1,
56 const Quantity_Color& AColor2,
57 const Aspect_GradientFillMethod AType)
59 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
62 aCView->View->SetBackgroundGradient(AColor1,AColor2,AType);
66 void OpenGl_GraphicDriver::Blink (const Graphic3d_CStructure &, const Standard_Boolean)
71 void OpenGl_GraphicDriver::BoundaryBox (const Graphic3d_CStructure& theCStructure,
72 const Standard_Boolean toCreate)
74 OpenGl_Structure* aStructure = (OpenGl_Structure* )theCStructure.ptrStructure;
75 if (aStructure == NULL)
79 aStructure->SetHighlightBox (GetSharedContext(), theCStructure.BoundBox);
81 aStructure->ClearHighlightBox (GetSharedContext());
84 void OpenGl_GraphicDriver::HighlightColor (const Graphic3d_CStructure& theCStructure,
85 const Standard_ShortReal R,
86 const Standard_ShortReal G,
87 const Standard_ShortReal B,
88 const Standard_Boolean toCreate)
90 OpenGl_Structure* aStructure = (OpenGl_Structure* )theCStructure.ptrStructure;
91 if (aStructure == NULL)
95 aStructure->SetHighlightColor (GetSharedContext(), R, G, B);
97 aStructure->ClearHighlightColor (GetSharedContext());
100 void OpenGl_GraphicDriver::NameSetStructure (const Graphic3d_CStructure& ACStructure)
102 OpenGl_Structure *astructure = (OpenGl_Structure *)ACStructure.ptrStructure;
105 Standard_Integer aStatus = 0;
106 if (ACStructure.highlight) aStatus |= OPENGL_NS_HIGHLIGHT;
107 if (!ACStructure.visible) aStatus |= OPENGL_NS_HIDE;
108 astructure->SetNamedStatus( aStatus );
112 void OpenGl_GraphicDriver::ClipLimit (const Graphic3d_CView& ACView, const Standard_Boolean AWait)
114 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
117 aCView->View->SetClipLimit(ACView);
120 aCView->WS->Resize(ACView.DefWindow);
125 void OpenGl_GraphicDriver::DeactivateView (const Graphic3d_CView& ACView)
127 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
130 const Handle(OpenGl_View) aDummyView;
131 aCView->WS->SetActiveView(aDummyView);
135 void OpenGl_GraphicDriver::DepthCueing (const Graphic3d_CView& ACView, const Standard_Boolean AFlag)
137 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
139 aCView->View->SetFog(ACView, AFlag);
142 Standard_Boolean OpenGl_GraphicDriver::ProjectRaster (const Graphic3d_CView& ACView, const Standard_ShortReal AX, const Standard_ShortReal AY, const Standard_ShortReal AZ, Standard_Integer& AU, Standard_Integer& AV)
144 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
146 return Standard_False;
148 Standard_Integer aWidth = aCView->WS->Width();
149 Standard_Integer aHeight = aCView->WS->Height();
150 Standard_ShortReal xr, yr;
151 if (aCView->View->ProjectObjectToRaster(aWidth, aHeight, AX, AY, AZ, xr, yr))
153 AU = (Standard_Integer) xr;
154 AV = aHeight - (Standard_Integer) yr;
155 return Standard_True;
158 return Standard_False;
161 Standard_Boolean OpenGl_GraphicDriver::UnProjectRaster (const Graphic3d_CView& ACView, const Standard_Integer Axm, const Standard_Integer Aym, const Standard_Integer AXM, const Standard_Integer AYM, const Standard_Integer AU, const Standard_Integer AV, Standard_ShortReal& Ax, Standard_ShortReal& Ay, Standard_ShortReal& Az)
163 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
165 return Standard_False;
167 const Standard_Integer aWidth = aCView->WS->Width();
168 const Standard_Integer aHeight = aCView->WS->Height();
171 Patched by P.Dolbey: the window pixel height decreased by one
172 in order for yr to remain within valid coordinate range [0; Ym -1]
173 where Ym means window pixel height.
175 return aCView->View->ProjectRasterToObject( aWidth, aHeight, AU, (AYM-1)-Aym-AV, Ax, Ay, Az );
178 Standard_Boolean OpenGl_GraphicDriver::UnProjectRasterWithRay (const Graphic3d_CView& ACView, const Standard_Integer Axm, const Standard_Integer Aym, const Standard_Integer AXM, const Standard_Integer AYM, const Standard_Integer AU, const Standard_Integer AV, Standard_ShortReal& Ax, Standard_ShortReal& Ay, Standard_ShortReal& Az, Standard_ShortReal& Dx, Standard_ShortReal& Dy, Standard_ShortReal& Dz)
180 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
182 return Standard_False;
184 const Standard_Integer aWidth = aCView->WS->Width();
185 const Standard_Integer aHeight = aCView->WS->Height();
187 return aCView->View->ProjectRasterToObjectWithRay( aWidth, aHeight, AU, AYM-Aym-AV, Ax, Ay, Az, Dx, Dy, Dz );
190 void OpenGl_GraphicDriver::RatioWindow (const Graphic3d_CView& theCView)
192 const OpenGl_CView* aCView = (const OpenGl_CView* )theCView.ptrView;
194 aCView->WS->Resize (theCView.DefWindow);
197 void OpenGl_GraphicDriver::Redraw (const Graphic3d_CView& ACView, const Aspect_CLayer2d& ACUnderLayer, const Aspect_CLayer2d& ACOverLayer, const Standard_Integer x, const Standard_Integer y, const Standard_Integer width, const Standard_Integer height)
199 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
202 /*if( width <= 0 || height <= 0 )
203 aCView->WS->Redraw(ACView, ACUnderLayer, ACOverLayer);
205 aCView->WS->RedrawArea(ACView, ACUnderLayer, ACOverLayer, x, y, width, height);*/
206 // Always do full redraw
207 aCView->WS->Redraw(ACView, ACUnderLayer, ACOverLayer);
211 Graphic3d_PtrFrameBuffer OpenGl_GraphicDriver::FBOCreate (const Graphic3d_CView& ACView, const Standard_Integer theWidth, const Standard_Integer theHeight)
213 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
215 return aCView->WS->FBOCreate(theWidth, theHeight);
216 return (Graphic3d_PtrFrameBuffer)NULL;
219 Graphic3d_PtrFrameBuffer OpenGl_Workspace::FBOCreate (const Standard_Integer theWidth, const Standard_Integer theHeight)
221 // activate OpenGL context
226 OpenGl_FrameBuffer* aFrameBuffer = new OpenGl_FrameBuffer();
227 if (!aFrameBuffer->Init (GetGlContext(), theWidth, theHeight))
232 return (Graphic3d_PtrFrameBuffer )aFrameBuffer;
235 void OpenGl_GraphicDriver::FBORelease (const Graphic3d_CView& ACView, Graphic3d_PtrFrameBuffer& theFBOPtr)
237 if (theFBOPtr == NULL)
239 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
242 aCView->WS->FBORelease(theFBOPtr);
247 void OpenGl_Workspace::FBORelease (Graphic3d_PtrFrameBuffer theFBOPtr)
249 // activate OpenGL context
253 // release the object
254 OpenGl_FrameBuffer* aFrameBuffer = (OpenGl_FrameBuffer*)theFBOPtr;
255 aFrameBuffer->Release (GetGlContext());
259 void OpenGl_GraphicDriver::FBOGetDimensions (const Graphic3d_CView& ,
260 const Graphic3d_PtrFrameBuffer theFBOPtr,
261 Standard_Integer& theWidth, Standard_Integer& theHeight,
262 Standard_Integer& theWidthMax, Standard_Integer& theHeightMax)
264 if (theFBOPtr == NULL)
268 const OpenGl_FrameBuffer* aFrameBuffer = (const OpenGl_FrameBuffer* )theFBOPtr;
269 theWidth = aFrameBuffer->GetVPSizeX(); // current viewport size
270 theHeight = aFrameBuffer->GetVPSizeY();
271 theWidthMax = aFrameBuffer->GetSizeX(); // texture size
272 theHeightMax = aFrameBuffer->GetSizeY();
275 void OpenGl_GraphicDriver::FBOChangeViewport (const Graphic3d_CView& ,
276 Graphic3d_PtrFrameBuffer& theFBOPtr,
277 const Standard_Integer theWidth, const Standard_Integer theHeight)
279 if (theFBOPtr == NULL)
283 OpenGl_FrameBuffer* aFrameBuffer = (OpenGl_FrameBuffer* )theFBOPtr;
284 aFrameBuffer->ChangeViewport (theWidth, theHeight);
289 #define GL_BGR 0x80E0
292 #define GL_BGRA 0x80E1
295 static inline GLenum TFormatToGLEnum (const TRawBufferDataFormat theTFormat)
299 case TRGB: return GL_RGB;
300 case TBGR: return GL_BGR;
301 case TRGBA: return GL_RGBA;
302 case TBGRA: return GL_BGRA;
303 case TDepthComponent: return GL_DEPTH_COMPONENT;
304 case TRed: return GL_RED;
305 case TGreen: return GL_GREEN;
306 case TBlue: return GL_BLUE;
307 case TAlpha: return GL_ALPHA;
312 static inline GLenum TTypeToGLEnum (const TRawBufferDataType theTType)
316 case TUByte: return GL_UNSIGNED_BYTE;
317 case TFloat: return GL_FLOAT;
322 Standard_Boolean OpenGl_GraphicDriver::BufferDump (const Graphic3d_CView& ACView, Image_CRawBufferData& theBuffer)
324 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
326 return aCView->WS->BufferDump((OpenGl_FrameBuffer *)ACView.ptrFBO,theBuffer);
327 return Standard_False;
330 Standard_Boolean OpenGl_Workspace::BufferDump (OpenGl_FrameBuffer *theFBOPtr, Image_CRawBufferData& theBuffer)
332 GLenum aFormat = TFormatToGLEnum (theBuffer.format);
333 GLenum aType = TTypeToGLEnum (theBuffer.type);
336 if (aFormat == 0 || aType == 0 ||
337 theBuffer.widthPx == 0 || theBuffer.heightPx == 0 ||
338 theBuffer.dataPtr == NULL)
340 return Standard_False;
343 // activate OpenGL context
345 return Standard_False;
348 OpenGl_FrameBuffer* aFrameBuffer = theFBOPtr;
349 GLint aReadBufferPrev = GL_BACK;
350 if (aFrameBuffer != NULL && aFrameBuffer->IsValid())
352 aFrameBuffer->BindBuffer (GetGlContext());
356 glGetIntegerv (GL_READ_BUFFER, &aReadBufferPrev);
357 GLint aDrawBufferPrev = GL_BACK;
358 glGetIntegerv (GL_DRAW_BUFFER, &aDrawBufferPrev);
359 glReadBuffer (aDrawBufferPrev);
362 GLint anAlignBack = 1;
363 glGetIntegerv (GL_PACK_ALIGNMENT, &anAlignBack);
364 if (theBuffer.rowAligmentBytes == 0)
366 theBuffer.rowAligmentBytes = 1;
368 glPixelStorei (GL_PACK_ALIGNMENT, theBuffer.rowAligmentBytes);
371 glReadPixels (0, 0, theBuffer.widthPx, theBuffer.heightPx, aFormat, aType, (GLvoid* )theBuffer.dataPtr);
372 glPixelStorei (GL_PACK_ALIGNMENT, anAlignBack);
374 if (aFrameBuffer != NULL && aFrameBuffer->IsValid())
376 aFrameBuffer->UnbindBuffer (GetGlContext());
380 glReadBuffer (aReadBufferPrev);
382 return Standard_True;
385 void OpenGl_GraphicDriver::RemoveView (const Graphic3d_CView& ACView)
387 if (myMapOfView.IsBound (ACView.ViewId))
388 myMapOfView.UnBind (ACView.ViewId);
390 if (myMapOfWS.IsBound (ACView.WsId))
391 myMapOfWS.UnBind (ACView.WsId);
393 OpenGl_CView *aCView = (OpenGl_CView *)ACView.ptrView;
395 ((Graphic3d_CView *)&ACView)->ptrView = NULL;
398 void OpenGl_GraphicDriver::SetLight (const Graphic3d_CView& ACView)
400 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
402 aCView->View->SetLights(ACView.Context);
405 void OpenGl_GraphicDriver::SetPlane (const Graphic3d_CView& ACView)
407 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
409 aCView->View->SetClippingPlanes(ACView.Context);
412 void OpenGl_GraphicDriver::SetVisualisation (const Graphic3d_CView& ACView)
414 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
417 aCView->View->SetVisualisation(ACView.Context);
418 aCView->WS->UseZBuffer() = ( ACView.Context.Visualization == 0? (ACView.Context.ZBufferActivity == 1) : (ACView.Context.ZBufferActivity != 0) );
422 void OpenGl_GraphicDriver::TransformStructure (const Graphic3d_CStructure& ACStructure)
424 OpenGl_Structure *astructure = (OpenGl_Structure *)ACStructure.ptrStructure;
426 astructure->SetTransformation(&(ACStructure.Transformation[0][0]));
429 void OpenGl_GraphicDriver::DegenerateStructure (const Graphic3d_CStructure& ACStructure)
431 OpenGl_Structure *astructure = (OpenGl_Structure *)ACStructure.ptrStructure;
433 astructure->SetDegenerateModel( ACStructure.ContextFillArea.DegenerationMode, ACStructure.ContextFillArea.SkipRatio );
436 void OpenGl_GraphicDriver::Transparency (const Graphic3d_CView& ACView, const Standard_Boolean AFlag)
438 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
440 aCView->WS->UseTransparency(AFlag);
443 void OpenGl_GraphicDriver::Update (const Graphic3d_CView& ACView, const Aspect_CLayer2d& ACUnderLayer, const Aspect_CLayer2d& ACOverLayer)
445 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
447 aCView->WS->Update(ACView,ACUnderLayer,ACOverLayer);
450 Standard_Boolean OpenGl_GraphicDriver::View (Graphic3d_CView& theCView)
452 if (openglDisplay.IsNull())
453 return Standard_False;
455 if (myMapOfView.IsBound (theCView.ViewId))
456 myMapOfView.UnBind (theCView.ViewId);
458 if (myMapOfWS.IsBound (theCView.WsId))
459 myMapOfWS.UnBind (theCView.WsId);
461 Handle(OpenGl_Workspace) aWS = Handle(OpenGl_Workspace)::DownCast(openglDisplay->GetWindow (theCView.DefWindow.XWindow));
464 Handle(OpenGl_Context) aShareCtx = GetSharedContext();
465 aWS = new OpenGl_Workspace (openglDisplay, theCView.DefWindow, theCView.GContext, aShareCtx);
466 openglDisplay->SetWindow (theCView.DefWindow.XWindow, aWS);
469 myMapOfWS.Bind (theCView.WsId, aWS);
471 Handle(OpenGl_View) aView = new OpenGl_View (theCView.Context);
472 myMapOfView.Bind (theCView.ViewId, aView);
474 OpenGl_CView* aCView = new OpenGl_CView();
475 aCView->View = aView;
477 theCView.ptrView = aCView;
479 return Standard_True;
482 void OpenGl_GraphicDriver::ViewMapping (const Graphic3d_CView& ACView, const Standard_Boolean AWait)
484 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
487 aCView->View->SetMapping(ACView);
490 aCView->WS->Resize(ACView.DefWindow);
495 void OpenGl_GraphicDriver::ViewOrientation (const Graphic3d_CView& ACView, const Standard_Boolean AWait)
497 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
500 aCView->View->SetOrientation(ACView);
503 aCView->WS->Resize(ACView.DefWindow);
508 void OpenGl_GraphicDriver::SetBackFacingModel (const Graphic3d_CView& ACView)
510 const OpenGl_CView *aCView = (const OpenGl_CView *)ACView.ptrView;
512 aCView->View->SetBackfacing(ACView.Backfacing);
515 //=======================================================================
516 //function : AddZLayer
518 //=======================================================================
520 void OpenGl_GraphicDriver::AddZLayer (const Graphic3d_CView& theCView,
521 const Standard_Integer theLayerId)
523 const OpenGl_CView *aCView = (const OpenGl_CView *)theCView.ptrView;
525 aCView->View->AddZLayer (theLayerId);
528 //=======================================================================
529 //function : RemoveZLayer
531 //=======================================================================
533 void OpenGl_GraphicDriver::RemoveZLayer (const Graphic3d_CView& theCView,
534 const Standard_Integer theLayerId)
536 const OpenGl_CView* aCView = (const OpenGl_CView *)theCView.ptrView;
538 aCView->View->RemoveZLayer (theLayerId);