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330 lines (299 loc) · 10.2 KB
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/*
##Copyright 2008-2014 Thomas Paviot (tpaviot@gmail.com)
##
##This file is part of pythonOCC.
##
##pythonOCC is free software: you can redistribute it and/or modify
##it under the terms of the GNU Lesser General Public License as published by
##the Free Software Foundation, either version 3 of the License, or
##(at your option) any later version.
##
##pythonOCC is distributed in the hope that it will be useful,
##but WITHOUT ANY WARRANTY; without even the implied warranty of
##MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
##GNU General Public License for more details.
##
##You should have received a copy of the GNU Lesser General Public License
##along with pythonOCC. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Visualization.h"
static Handle(OpenGl_GraphicDriver)& GetGraphicDriver()
{
static Handle(OpenGl_GraphicDriver) aGraphicDriver;
return aGraphicDriver;
}
static const Handle(Standard_Transient)& WClass()
{
static Handle(Standard_Transient) aWindowClass;
#ifdef WNT
if (aWindowClass.IsNull())
{
aWindowClass = new WNT_WClass ("PyOCC_Class", (void*)DefWindowProc,
CS_VREDRAW | CS_HREDRAW, 0, 0,
::LoadCursor (NULL, IDC_ARROW));
}
#endif
return aWindowClass;
}
Display3d::Display3d()
: myIsOffscreen(false), mySizeX(0), mySizeY(0)
{
printf("####### 3D rendering pipe initialisation #####\n");
printf("Display3d class initialization starting ...\n");
// Create graphic driver
Handle(Aspect_DisplayConnection) aDisplayConnection = new Aspect_DisplayConnection();
printf("Aspect_DisplayConnection created.\n");
if (GetGraphicDriver().IsNull())
{
GetGraphicDriver() = new OpenGl_GraphicDriver(aDisplayConnection);
}
printf("OpenGl_GraphicDriver created.\n");
// Create V3dViewer and V3d_View
myV3dViewer = new V3d_Viewer(GetGraphicDriver());
printf("V3d_Viewer created.\n");
// Create AISInteractiveViewer
myAISContext = new AIS_InteractiveContext(myV3dViewer);
if (myAISContext.IsNull())
{
Message::SendFail ("Error: no AIS_InteractiveContext.");
}
else
{
printf("AIS_InteractiveContext created.\n");
}
// Create view
myV3dView = myV3dViewer->CreateView();
if (myV3dView.IsNull())
{
Message::SendFail("No active viewer.");
}
else
{
printf("V3d_View created\n");
}
// create camera
myGraphic3dCamera = myV3dView -> Camera();
if (myGraphic3dCamera.IsNull())
{
Message::SendFail("No camera.");
}
else
{
printf("Graphic3d_Camera created\n");
}
// create structure manager
myGraphic3dStructureManager = myAISContext -> MainPrsMgr() -> StructureManager();
if (myGraphic3dStructureManager.IsNull())
{
Message::SendFail("No structure manager.");
}
else
{
printf("Graphic3d_StructureManager created\n");
}
}
Display3d::~Display3d()
{
}
void Display3d::GlInfo()
{
printf("OpenGl information:\n");
TColStd_IndexedDataMapOfStringString aDict;
myV3dView->DiagnosticInformation(aDict, Graphic3d_DiagnosticInfo_Short);
TCollection_AsciiString aText="";
for (TColStd_IndexedDataMapOfStringString::Iterator aValueIter(aDict); aValueIter.More(); aValueIter.Next())
{
if (!aText.IsEmpty())
{
aText += "\n";
}
aText += TCollection_AsciiString(" ") + aValueIter.Key() + ": " + aValueIter.Value();
}
aText += "\n";
printf("%s", aText.ToCString());
}
Standard_Boolean Display3d::InitOffscreen(int size_x, int size_y)
{
myIsOffscreen = true;
SetSize(size_x, size_y);
printf("Display3d class successfully initialized.\n");
printf("#########################################\n");
return true;
}
Standard_Boolean Display3d::IsOffscreen()
{
return myIsOffscreen;
}
Standard_Boolean Display3d::SetSize(int size_x, int size_y)
{
if(myIsOffscreen)
{
mySizeX = size_x;
mySizeY = size_y;
#ifdef WNT
myWindow = new WNT_Window("PythonOCC",
Handle(WNT_WClass)::DownCast (WClass()),
WS_OVERLAPPEDWINDOW,
0, 0,
size_x, size_y,
Quantity_NOC_BLACK);
myWindow->SetVirtual (true);
#elif defined(__APPLE__) && !defined(MACOSX_USE_GLX)
myWindow = new Cocoa_Window("PythonOCC",
0, 0,
size_x, size_y);
printf("Cocoa window created.\n");
myWindow->SetVirtual (true);
#else
myWindow = new Xw_Window(myAISContext->CurrentViewer()->Driver()->GetDisplayConnection(),
"PythonOCC",
0, 0,
size_x, size_y);
myWindow->SetVirtual (true);
#endif
myV3dView->SetWindow(myWindow);
return true;
}
return false;
}
Standard_Boolean Display3d::GetSize(int &size_x, int &size_y)
{
if(myIsOffscreen)
{
size_x = mySizeX;
size_y = mySizeY;
return true;
}
return false;
}
Standard_Boolean Display3d::GetImageData(int width,
int height,
const char* &data,
size_t &size,
const Graphic3d_BufferType& theBufferType)
{
if(myIsOffscreen)
{
static Image_PixMap anImage;
if (myV3dView->ToPixMap (anImage, width, height, theBufferType))
{
data = (const char*)anImage.Data();
size = anImage.SizeBytes();
return true;
}
}
return false;
}
void Display3d::Init(long window_handle)
{
// Create Graphic Window
#ifdef WNT
myWindow = new WNT_Window((Aspect_Handle) window_handle);
printf("WNT window created.\n");
#elif defined(__APPLE__) && !defined(MACOSX_USE_GLX)
myWindow = new Cocoa_Window((NSView *) window_handle);
printf("Cocoa window created.\n");
#else
myWindow = new Xw_Window(myAISContext->CurrentViewer()->Driver()->GetDisplayConnection(),
(Aspect_Handle) window_handle);
printf("Xw_Window created.\n");
#endif
myV3dView->SetWindow(myWindow);
if (!myWindow->IsMapped()) myWindow->Map();
printf("Display3d class successfully initialized.\n");
printf("#########################################\n");
}
void Display3d::ChangeRenderingParams(int Method,
Standard_Integer RaytracingDepth,
Standard_Boolean IsShadowEnabled,
Standard_Boolean IsReflectionEnabled,
Standard_Boolean IsAntialiasingEnabled,
Standard_Boolean IsTransparentShadowEnabled,
int StereoMode,
int AnaglyphFilter,
Standard_Boolean ToReverseStereo)
{
Graphic3d_RenderingParams& aParams = myV3dView->ChangeRenderingParams();
aParams.Method = (Graphic3d_RenderingMode)Method;
aParams.RaytracingDepth = RaytracingDepth;
aParams.IsShadowEnabled = IsShadowEnabled;
aParams.IsAntialiasingEnabled = IsAntialiasingEnabled;
aParams.IsReflectionEnabled = IsReflectionEnabled;
aParams.IsTransparentShadowEnabled = IsTransparentShadowEnabled;
aParams.StereoMode = (Graphic3d_StereoMode)StereoMode;
aParams.AnaglyphFilter = (Graphic3d_RenderingParams::Anaglyph)AnaglyphFilter;
aParams.ToReverseStereo =ToReverseStereo;
myV3dView->Redraw();
}
void Display3d::SetNbMsaaSample(int nb)
{
Graphic3d_RenderingParams& aParams = myV3dView->ChangeRenderingParams();
aParams.NbMsaaSamples = nb;
myV3dView->Redraw();
}
void Display3d::SetAnaglyphMode(int mode)
{
Handle(Graphic3d_Camera) aCamera = myV3dView->Camera();
Graphic3d_RenderingParams* aParams = &myV3dView->ChangeRenderingParams();
aParams->StereoMode = Graphic3d_StereoMode_Anaglyph;
aParams->AnaglyphFilter = (Graphic3d_RenderingParams::Anaglyph)mode;
GetGraphicDriver()->ChangeOptions().contextStereo = true;
aCamera->SetProjectionType (Graphic3d_Camera::Projection_Stereo);
myV3dView->Redraw();
}
void Display3d::EnableVBO()
{
GetGraphicDriver()->ChangeOptions().vboDisable = false;
}
void Display3d::DisableVBO()
{
GetGraphicDriver()->ChangeOptions().vboDisable = true;
}
void Display3d::Test()
{
BRepPrimAPI_MakeBox S(100,50,40);
Handle(AIS_Shape) anAISShape = new AIS_Shape(S.Shape());
myAISContext->Display(anAISShape, Standard_False);
myV3dView->ZFitAll();
myV3dView->FitAll();
}
void Display3d::SetCoreProfileEnabled(Standard_Boolean theEnabled)
{
// Request OpenGL Core Profile instead of compatibility profile.
// On macOS, compatibility profile is limited to OpenGL 2.1 / GLSL 1.20.
// Core Profile enables OpenGL 3.2+ / GLSL 1.50+ which is required for
// Qt6 scene graph integration and modern shader features.
// Must be called BEFORE Init() to take effect.
GetGraphicDriver()->ChangeOptions().contextCompatible = !theEnabled;
GetGraphicDriver()->ChangeOptions().ffpEnable = !theEnabled;
}
void Display3d::SetContextCompatible(Standard_Boolean theCompatible)
{
// Set whether to request backward-compatible OpenGL context.
// When false, requests Core Profile (OpenGL 3.2+).
// Must be called BEFORE Init() to take effect.
GetGraphicDriver()->ChangeOptions().contextCompatible = theCompatible;
}
void Display3d::SetFfpEnable(Standard_Boolean theEnabled)
{
// Enable/disable fixed-function pipeline.
// Should be disabled when using Core Profile.
// Must be called BEFORE Init() to take effect.
GetGraphicDriver()->ChangeOptions().ffpEnable = theEnabled;
}
void Display3d::SetBuffersNoSwap(Standard_Boolean theNoSwap)
{
// Set whether to skip buffer swapping (for external GL context management).
// Useful when integrating with Qt Quick or other frameworks that manage
// their own buffer swapping.
GetGraphicDriver()->ChangeOptions().buffersNoSwap = theNoSwap;
}
void Display3d::SetSRGBDisabled(Standard_Boolean theDisabled)
{
// Disable sRGB rendering (OFF by default in OCCT).
// When enabled, OCCT won't attempt to create sRGB framebuffers.
// Useful for macOS where GL_SRGB8_ALPHA8 format may not be supported
// in certain contexts.
// Must be called BEFORE Init()/InitOffscreen() to take effect.
GetGraphicDriver()->ChangeOptions().sRGBDisable = theDisabled;
}
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