7443b8b5e8
configure.ac src/Main/Makefile.am src/Main/fg_os.cxx src/Main/fg_os.hxx src/Main/fg_os_sdl.cxx src/Main/main.cxx src/Main/renderer.cxx src/Main/renderer.hxx src/Network/jpg-httpd.cxx Added Files: src/Main/FGManipulator.cxx src/Main/FGManipulator.hxx src/Main/fg_os_osgviewer.cxx: Tim Moore: Make use of osgViewer.
165 lines
4 KiB
C++
165 lines
4 KiB
C++
#include <stdlib.h>
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#include <simgear/compiler.h>
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#include <simgear/structure/exception.hxx>
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#include <simgear/debug/logstream.hxx>
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#include <osg/GraphicsContext>
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#include <osg/Group>
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#include <osg/Matrixd>
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#include <osg/Viewport>
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#include <osgViewer/StatsHandler>
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#include <osgViewer/Viewer>
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#include <osgGA/MatrixManipulator>
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#include "fg_os.hxx"
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#include "util.hxx"
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#include "globals.hxx"
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#include "renderer.hxx"
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// fg_os implementation using OpenSceneGraph's osgViewer::Viewer class
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// to create the graphics window and run the event/update/render loop.
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//
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// fg_os callback registration APIs
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//
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// Event handling and scene graph update is all handled by a
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// manipulator. See FGManipulator.cpp
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void fgRegisterIdleHandler(fgIdleHandler func)
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{
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globals->get_renderer()->getManipulator()->setIdleHandler(func);
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}
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void fgRegisterDrawHandler(fgDrawHandler func)
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{
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globals->get_renderer()->getManipulator()->setDrawHandler(func);
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}
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void fgRegisterWindowResizeHandler(fgWindowResizeHandler func)
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{
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globals->get_renderer()->getManipulator()->setWindowResizeHandler(func);
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}
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void fgRegisterKeyHandler(fgKeyHandler func)
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{
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globals->get_renderer()->getManipulator()->setKeyHandler(func);
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}
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void fgRegisterMouseClickHandler(fgMouseClickHandler func)
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{
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globals->get_renderer()->getManipulator()->setMouseClickHandler(func);
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}
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void fgRegisterMouseMotionHandler(fgMouseMotionHandler func)
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{
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globals->get_renderer()->getManipulator()->setMouseMotionHandler(func);
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}
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// Redraw "happens" every frame whether you want it or not.
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void fgRequestRedraw()
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{
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}
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//
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// fg_os implementation
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//
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static osg::ref_ptr<osgViewer::Viewer> viewer;
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void fgOSOpenWindow(int w, int h, int bpp,
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bool alpha, bool stencil, bool fullscreen)
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{
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viewer = new osgViewer::Viewer;
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// Avoid complications with fg's custom drawables.
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viewer->setThreadingModel(osgViewer::Viewer::SingleThreaded);
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osg::ref_ptr<osg::GraphicsContext::Traits> traits
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= new osg::GraphicsContext::Traits;
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int cbits = (bpp <= 16) ? 5 : 8;
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int zbits = (bpp <= 16) ? 16 : 24;
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traits->width = w;
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traits->height = h;
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traits->red = traits->green = traits->blue = cbits;
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traits->depth = zbits;
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if (alpha)
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traits->alpha = 8;
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if (stencil)
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traits->stencil = 8;
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if (fullscreen)
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traits->windowDecoration = false;
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else
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traits->windowDecoration = true;
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traits->supportsResize = true;
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traits->doubleBuffer = true;
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osg::GraphicsContext* gc
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= osg::GraphicsContext::createGraphicsContext(traits.get());
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viewer->getCamera()->setGraphicsContext(gc);
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// If a viewport isn't set on the camera, then it's hard to dig it
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// out of the SceneView objects in the viewer, and the coordinates
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// of mouse events are somewhat bizzare.
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viewer->getCamera()->setViewport(new osg::Viewport(0, 0,
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traits->width,
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traits->height));
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viewer->setCameraManipulator(globals->get_renderer()->getManipulator());
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// Let FG handle the escape key with a confirmation
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viewer->setKeyEventSetsDone(0);
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osgViewer::StatsHandler* statsHandler = new osgViewer::StatsHandler;
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statsHandler->setKeyEventTogglesOnScreenStats('*');
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statsHandler->setKeyEventPrintsOutStats(0);
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viewer->addEventHandler(statsHandler);
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// The viewer won't start without some root.
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viewer->setSceneData(new osg::Group);
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globals->get_renderer()->setViewer(viewer.get());
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}
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static int status = 0;
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void fgOSExit(int code)
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{
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viewer->setDone(true);
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status = code;
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}
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void fgOSMainLoop()
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{
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viewer->run();
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fgExit(status);
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}
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int fgGetKeyModifiers()
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{
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return globals->get_renderer()->getManipulator()->getCurrentModifiers();
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}
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void fgWarpMouse(int x, int y)
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{
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viewer->requestWarpPointer((float)x, (float)y);
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}
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// Noop
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void fgOSInit(int* argc, char** argv)
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{
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}
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void fgOSFullScreen()
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{
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// Noop, but is probably doable
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}
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// No support in OSG yet
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void fgSetMouseCursor(int cursor)
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{
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}
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int fgGetMouseCursor()
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{
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return 0;
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}
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void fgMakeCurrent()
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{
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osg::GraphicsContext* gc = viewer->getCamera()->getGraphicsContext();
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gc->makeCurrent();
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}
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