mirror of
https://github.com/OpenMW/openmw.git
synced 2025-11-04 07:56:40 +00:00
316 lines
9.7 KiB
C++
316 lines
9.7 KiB
C++
#include "stats.hpp"
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#include <sstream>
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#include <iomanip>
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#include <osg/PolygonMode>
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#include <osgText/Text>
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#include <osgViewer/Viewer>
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#include <osgViewer/Renderer>
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namespace Resource
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{
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StatsHandler::StatsHandler():
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_key(osgGA::GUIEventAdapter::KEY_F4),
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_initialized(false),
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_statsType(false),
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_statsWidth(1280.0f),
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_statsHeight(1024.0f),
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_font("fonts/arial.ttf"),
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_characterSize(20.0f)
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{
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_camera = new osg::Camera;
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_camera->getOrCreateStateSet()->setGlobalDefaults();
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_camera->setRenderer(new osgViewer::Renderer(_camera.get()));
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_camera->setProjectionResizePolicy(osg::Camera::FIXED);
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_resourceStatsChildNum = 0;
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}
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bool StatsHandler::handle(const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa)
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{
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if (ea.getHandled()) return false;
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switch(ea.getEventType())
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{
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case(osgGA::GUIEventAdapter::KEYDOWN):
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{
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if (ea.getKey()== _key)
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{
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osgViewer::View* myview = dynamic_cast<osgViewer::View*>(&aa);
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if (!myview) return false;
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osgViewer::ViewerBase* viewer = myview->getViewerBase();
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toggle(viewer);
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aa.requestRedraw();
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return true;
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}
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break;
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}
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case osgGA::GUIEventAdapter::RESIZE:
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{
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setWindowSize(ea.getWindowWidth(), ea.getWindowHeight());
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break;
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}
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default:
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break;
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}
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return false;
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}
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void StatsHandler::setWindowSize(int width, int height)
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{
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if (width <= 0 || height <= 0)
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return;
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_camera->setViewport(0, 0, width, height);
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if (fabs(height*_statsWidth) <= fabs(width*_statsHeight))
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{
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_camera->setProjectionMatrix(osg::Matrix::ortho2D(_statsWidth - width*_statsHeight/height, _statsWidth,0.0,_statsHeight));
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}
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else
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{
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_camera->setProjectionMatrix(osg::Matrix::ortho2D(0.0,_statsWidth,_statsHeight-height*_statsWidth/width,_statsHeight));
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}
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}
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void StatsHandler::toggle(osgViewer::ViewerBase *viewer)
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{
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if (!_initialized)
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{
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setUpHUDCamera(viewer);
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setUpScene(viewer);
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}
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_statsType = !_statsType;
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if (!_statsType)
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{
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_camera->setNodeMask(0);
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_switch->setAllChildrenOff();
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viewer->getViewerStats()->collectStats("resource", false);
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}
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else
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{
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_camera->setNodeMask(0xffffffff);
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_switch->setSingleChildOn(_resourceStatsChildNum);
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viewer->getViewerStats()->collectStats("resource", true);
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}
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}
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void StatsHandler::setUpHUDCamera(osgViewer::ViewerBase* viewer)
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{
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// Try GraphicsWindow first so we're likely to get the main viewer window
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osg::GraphicsContext* context = dynamic_cast<osgViewer::GraphicsWindow*>(_camera->getGraphicsContext());
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if (!context)
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{
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osgViewer::Viewer::Windows windows;
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viewer->getWindows(windows);
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if (!windows.empty()) context = windows.front();
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else
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{
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// No GraphicsWindows were found, so let's try to find a GraphicsContext
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context = _camera->getGraphicsContext();
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if (!context)
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{
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osgViewer::Viewer::Contexts contexts;
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viewer->getContexts(contexts);
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if (contexts.empty()) return;
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context = contexts.front();
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}
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}
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}
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_camera->setGraphicsContext(context);
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_camera->setRenderOrder(osg::Camera::POST_RENDER, 11);
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_camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
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_camera->setViewMatrix(osg::Matrix::identity());
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setWindowSize(context->getTraits()->width, context->getTraits()->height);
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// only clear the depth buffer
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_camera->setClearMask(0);
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_camera->setAllowEventFocus(false);
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_camera->setRenderer(new osgViewer::Renderer(_camera.get()));
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_initialized = true;
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}
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osg::Geometry* createBackgroundRectangle(const osg::Vec3& pos, const float width, const float height, osg::Vec4& color)
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{
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osg::StateSet *ss = new osg::StateSet;
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osg::Geometry* geometry = new osg::Geometry;
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geometry->setUseDisplayList(false);
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geometry->setStateSet(ss);
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osg::Vec3Array* vertices = new osg::Vec3Array;
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geometry->setVertexArray(vertices);
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vertices->push_back(osg::Vec3(pos.x(), pos.y(), 0));
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vertices->push_back(osg::Vec3(pos.x(), pos.y()-height,0));
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vertices->push_back(osg::Vec3(pos.x()+width, pos.y()-height,0));
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vertices->push_back(osg::Vec3(pos.x()+width, pos.y(),0));
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osg::Vec4Array* colors = new osg::Vec4Array;
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colors->push_back(color);
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geometry->setColorArray(colors, osg::Array::BIND_OVERALL);
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osg::DrawElementsUShort *base = new osg::DrawElementsUShort(osg::PrimitiveSet::TRIANGLE_FAN,0);
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base->push_back(0);
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base->push_back(1);
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base->push_back(2);
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base->push_back(3);
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geometry->addPrimitiveSet(base);
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return geometry;
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}
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class ResourceStatsTextDrawCallback : public osg::Drawable::DrawCallback
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{
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public:
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ResourceStatsTextDrawCallback(osg::Stats* stats, const std::vector<std::string>& statNames)
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: _stats(stats)
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, _statNames(statNames)
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{
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}
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virtual void drawImplementation(osg::RenderInfo& renderInfo,const osg::Drawable* drawable) const
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{
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if (!_stats) return;
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osgText::Text* text = (osgText::Text*)(drawable);
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std::ostringstream viewStr;
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viewStr.setf(std::ios::left, std::ios::adjustfield);
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viewStr.width(14);
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// Used fixed formatting, as scientific will switch to "...e+.." notation for
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// large numbers of vertices/drawables/etc.
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viewStr.setf(std::ios::fixed);
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viewStr.precision(0);
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unsigned int frameNumber = renderInfo.getState()->getFrameStamp()->getFrameNumber()-1;
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for (std::vector<std::string>::const_iterator it = _statNames.begin(); it != _statNames.end(); ++it)
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{
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if (it->empty())
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viewStr << std::endl;
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else
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{
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double value = 0.0;
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if (_stats->getAttribute(frameNumber, *it, value))
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viewStr << std::setw(8) << value << std::endl;
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else
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viewStr << std::setw(8) << "." << std::endl;
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}
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}
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text->setText(viewStr.str());
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text->drawImplementation(renderInfo);
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}
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osg::ref_ptr<osg::Stats> _stats;
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std::vector<std::string> _statNames;
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};
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void StatsHandler::setUpScene(osgViewer::ViewerBase *viewer)
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{
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_switch = new osg::Switch;
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_camera->addChild(_switch);
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osg::StateSet* stateset = _switch->getOrCreateStateSet();
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stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
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stateset->setMode(GL_BLEND,osg::StateAttribute::ON);
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stateset->setMode(GL_DEPTH_TEST,osg::StateAttribute::OFF);
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#ifdef OSG_GL1_AVAILABLE
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stateset->setAttribute(new osg::PolygonMode(), osg::StateAttribute::PROTECTED);
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#endif
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osg::Vec3 pos(_statsWidth-300.f, _statsHeight-500.0f,0.0f);
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osg::Vec4 backgroundColor(0.0, 0.0, 0.0f, 0.3);
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osg::Vec4 staticTextColor(1.0, 1.0, 0.0f, 1.0);
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osg::Vec4 dynamicTextColor(1.0, 1.0, 1.0f, 1.0);
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float backgroundMargin = 5;
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float backgroundSpacing = 3;
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// resource stats
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{
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osg::Group* group = new osg::Group;
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group->setCullingActive(false);
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_resourceStatsChildNum = _switch->getNumChildren();
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_switch->addChild(group, false);
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const char* statNames[] = {"Compiling", "WorkQueue", "WorkThread", "", "Texture", "StateSet", "Node", "Node Instance", "Shape", "Shape Instance", "Image", "Nif", "Keyframe", "", "Terrain Chunk", "Terrain Texture", "Land", "Composite", "", "UnrefQueue"};
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int numLines = sizeof(statNames) / sizeof(statNames[0]);
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group->addChild(createBackgroundRectangle(pos + osg::Vec3(-backgroundMargin, _characterSize + backgroundMargin, 0),
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10 * _characterSize + 2 * backgroundMargin,
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numLines * _characterSize + 2 * backgroundMargin,
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backgroundColor));
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osg::ref_ptr<osgText::Text> staticText = new osgText::Text;
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group->addChild( staticText.get() );
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staticText->setColor(staticTextColor);
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staticText->setFont(_font);
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staticText->setCharacterSize(_characterSize);
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staticText->setPosition(pos);
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std::ostringstream viewStr;
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viewStr.clear();
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viewStr.setf(std::ios::left, std::ios::adjustfield);
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viewStr.width(14);
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for (size_t i = 0; i<sizeof(statNames)/sizeof(statNames[0]); ++i)
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{
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viewStr << statNames[i] << std::endl;
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}
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staticText->setText(viewStr.str());
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pos.x() += 10 * _characterSize + 2 * backgroundMargin + backgroundSpacing;
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group->addChild(createBackgroundRectangle(pos + osg::Vec3(-backgroundMargin, _characterSize + backgroundMargin, 0),
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5 * _characterSize + 2 * backgroundMargin,
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numLines * _characterSize + 2 * backgroundMargin,
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backgroundColor));
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osg::ref_ptr<osgText::Text> statsText = new osgText::Text;
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group->addChild( statsText.get() );
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statsText->setColor(dynamicTextColor);
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statsText->setFont(_font);
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statsText->setCharacterSize(_characterSize);
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statsText->setPosition(pos);
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statsText->setText("");
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statsText->setDrawCallback(new ResourceStatsTextDrawCallback(viewer->getViewerStats(), std::vector<std::string>(statNames, statNames + numLines)));
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}
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}
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void StatsHandler::getUsage(osg::ApplicationUsage &usage) const
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{
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usage.addKeyboardMouseBinding(_key, "On screen resource usage stats.");
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}
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}
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