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Adding support for controlling visual settings via environmental variables

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and command line paramters.  Including support for stereo and stencil buffer.
This commit is contained in:
Robert Osfield
2001-12-19 00:38:23 +00:00
parent a3fe8ebb18
commit 296865e250
24 changed files with 825 additions and 300 deletions
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45
src/osgGLUT/Viewer.cpp
View File

@@ -128,6 +128,7 @@ Viewer::Viewer()
_frameStamp = new osg::FrameStamp;
_visualsSettings = new osg::VisualsSettings;
}
@@ -135,6 +136,11 @@ Viewer::~Viewer()
{
}
/** read the command line string list, removing any matched control sequences.*/
void Viewer::readCommandLine(std::vector<std::string>& commandLine)
{
_visualsSettings->readCommandLine(commandLine);
}
/**
* Configure and open the GLUT window for this Viewer
@@ -177,6 +183,8 @@ bool Viewer::open()
bool needQuadBufferStereo = false;
// do we need quad buffer stereo?
// Set the absolute viewport for each SceneView based on the
// relative viewport coordinates given to us
for(itr=_viewportList.begin();
@@ -199,9 +207,21 @@ bool Viewer::open()
// osg::notify(osg::INFO) << "Handled reshape "<< std::endl;
}
if (sceneView->getStereoMode()==osgUtil::SceneView::QUAD_BUFFER_STEREO) needQuadBufferStereo = true;
const osg::VisualsSettings* vs = sceneView->getVisualsSettings();
if (vs)
{
_visualsSettings->merge(*vs);
}
else
{
// one does not already exist so attach the viewers visualsSettins to the SceneView
sceneView->setVisualsSettings(_visualsSettings.get());
}
}
if (_visualsSettings->getStereo() &&
_visualsSettings->getStereoMode()==osg::VisualsSettings::QUAD_BUFFER) needQuadBufferStereo = true;
//glutInit( &argc, argv ); // I moved this into main to avoid passing
// argc and argv to the Viewer
@@ -211,6 +231,7 @@ bool Viewer::open()
// traverse the scene graphs gathering the requirements of the OpenGL buffers.
osgUtil::VisualsRequirementsVisitor vrv;
vrv.setVisualsSettings(_visualsSettings.get());
for(itr=_viewportList.begin();
itr!=_viewportList.end();
++itr)
@@ -219,13 +240,13 @@ bool Viewer::open()
if (node) node->accept(vrv);
}
#ifdef _DEBUG
vrv.setMinimumNumStencilBits(8); //gwm 12.8.01 to force stencils available for DC test
_visualsSettings->setMinimumNumStencilBits(8); //gwm 12.8.01 to force stencils available for DC test
#endif
// set up each render stage to clear the appropriate buffers.
GLbitfield clear_mask=0;
if (vrv.requiresRGB()) clear_mask |= GL_COLOR_BUFFER_BIT;
if (vrv.requiresDepthBuffer()) clear_mask |= GL_DEPTH_BUFFER_BIT;
if (vrv.requiresStencilBuffer()) clear_mask |= GL_STENCIL_BUFFER_BIT;
if (_visualsSettings->getRGB()) clear_mask |= GL_COLOR_BUFFER_BIT;
if (_visualsSettings->getDepthBuffer()) clear_mask |= GL_DEPTH_BUFFER_BIT;
if (_visualsSettings->getStencilBuffer()) clear_mask |= GL_STENCIL_BUFFER_BIT;
for(itr=_viewportList.begin();
itr!=_viewportList.end();
@@ -238,13 +259,13 @@ bool Viewer::open()
// set the GLUT display mode bit mask up to handle it.
unsigned int displayMode=0;
if (vrv.requiresDoubleBuffer()) displayMode |= GLUT_DOUBLE;
else displayMode |= GLUT_SINGLE;
if (vrv.requiresRGB()) displayMode |= GLUT_RGB;
if (vrv.requiresDepthBuffer()) displayMode |= GLUT_DEPTH;
if (vrv.requiresAlphaBuffer()) displayMode |= GLUT_ALPHA;
if (vrv.requiresStencilBuffer()) displayMode |= GLUT_STENCIL;
if (needQuadBufferStereo) displayMode |= GLUT_STEREO;
if (_visualsSettings->getDoubleBuffer()) displayMode |= GLUT_DOUBLE;
else displayMode |= GLUT_SINGLE;
if (_visualsSettings->getRGB()) displayMode |= GLUT_RGB;
if (_visualsSettings->getDepthBuffer()) displayMode |= GLUT_DEPTH;
if (_visualsSettings->getAlphaBuffer()) displayMode |= GLUT_ALPHA;
if (_visualsSettings->getStencilBuffer()) displayMode |= GLUT_STENCIL;
if (needQuadBufferStereo) displayMode |= GLUT_STEREO;
// and we'll add in multisample so that on systems like Onyx's can
// go ahead and use there loverly anti-aliasing. This is ignored