792 lines
27 KiB
C++
792 lines
27 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
|
|
*
|
|
* This application is open source and may be redistributed and/or modified
|
|
* freely and without restriction, both in commericial and non commericial applications,
|
|
* as long as this copyright notice is maintained.
|
|
*
|
|
* This application 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.
|
|
*/
|
|
|
|
#include <osgDB/ReadFile>
|
|
#include <osgDB/WriteFile>
|
|
|
|
#include <osgUtil/Optimizer>
|
|
#include <osg/CoordinateSystemNode>
|
|
|
|
#include <osg/Switch>
|
|
#include <osgText/Text>
|
|
|
|
#include <osgViewer/Viewer>
|
|
#include <osgViewer/ViewerEventHandlers>
|
|
|
|
#include <osgGA/TrackballManipulator>
|
|
#include <osgGA/FlightManipulator>
|
|
#include <osgGA/DriveManipulator>
|
|
#include <osgGA/KeySwitchMatrixManipulator>
|
|
#include <osgGA/StateSetManipulator>
|
|
#include <osgGA/AnimationPathManipulator>
|
|
#include <osgGA/TerrainManipulator>
|
|
|
|
#include <iostream>
|
|
#include <sstream>
|
|
|
|
class WindowCaptureCallback : public osg::Camera::DrawCallback
|
|
{
|
|
public:
|
|
|
|
enum Mode
|
|
{
|
|
READ_PIXELS,
|
|
SINGLE_PBO,
|
|
DOUBLE_PBO,
|
|
TRIPLE_PBO
|
|
};
|
|
|
|
enum FramePosition
|
|
{
|
|
START_FRAME,
|
|
END_FRAME
|
|
};
|
|
|
|
struct ContextData : public osg::Referenced
|
|
{
|
|
|
|
ContextData(osg::GraphicsContext* gc, Mode mode, GLenum readBuffer, const std::string& name):
|
|
_gc(gc),
|
|
_mode(mode),
|
|
_readBuffer(readBuffer),
|
|
_fileName(name),
|
|
_pixelFormat(GL_BGRA),
|
|
_type(GL_UNSIGNED_BYTE),
|
|
_width(0),
|
|
_height(0),
|
|
_currentImageIndex(0),
|
|
_currentPboIndex(0),
|
|
_reportTimingFrequency(100),
|
|
_numTimeValuesRecorded(0),
|
|
_timeForReadPixels(0.0),
|
|
_timeForFullCopy(0.0),
|
|
_timeForMemCpy(0.0)
|
|
|
|
{
|
|
_previousFrameTick = osg::Timer::instance()->tick();
|
|
|
|
if (gc->getTraits())
|
|
{
|
|
if (gc->getTraits()->alpha)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Select GL_BGRA read back format"<<std::endl;
|
|
_pixelFormat = GL_BGRA;
|
|
}
|
|
else
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Select GL_BGR read back format"<<std::endl;
|
|
_pixelFormat = GL_BGR;
|
|
}
|
|
}
|
|
|
|
getSize(gc, _width, _height);
|
|
|
|
std::cout<<"Window size "<<_width<<", "<<_height<<std::endl;
|
|
|
|
// single buffered image
|
|
_imageBuffer.push_back(new osg::Image);
|
|
|
|
// double buffer PBO.
|
|
switch(_mode)
|
|
{
|
|
case(READ_PIXELS):
|
|
osg::notify(osg::NOTICE)<<"Reading window usig glReadPixels, with out PixelBufferObject."<<std::endl;
|
|
break;
|
|
case(SINGLE_PBO):
|
|
osg::notify(osg::NOTICE)<<"Reading window usig glReadPixels, with a single PixelBufferObject."<<std::endl;
|
|
_pboBuffer.push_back(0);
|
|
break;
|
|
case(DOUBLE_PBO):
|
|
osg::notify(osg::NOTICE)<<"Reading window usig glReadPixels, with a double buffer PixelBufferObject."<<std::endl;
|
|
_pboBuffer.push_back(0);
|
|
_pboBuffer.push_back(0);
|
|
break;
|
|
case(TRIPLE_PBO):
|
|
osg::notify(osg::NOTICE)<<"Reading window usig glReadPixels, with a triple buffer PixelBufferObject."<<std::endl;
|
|
_pboBuffer.push_back(0);
|
|
_pboBuffer.push_back(0);
|
|
_pboBuffer.push_back(0);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void getSize(osg::GraphicsContext* gc, int& width, int& height)
|
|
{
|
|
if (gc->getTraits())
|
|
{
|
|
width = gc->getTraits()->width;
|
|
height = gc->getTraits()->height;
|
|
}
|
|
}
|
|
|
|
void updateTimings(osg::Timer_t tick_start,
|
|
osg::Timer_t tick_afterReadPixels,
|
|
osg::Timer_t tick_afterMemCpy,
|
|
unsigned int dataSize);
|
|
|
|
void read()
|
|
{
|
|
osg::BufferObject::Extensions* ext = osg::BufferObject::getExtensions(_gc->getState()->getContextID(),true);
|
|
|
|
if (ext->isPBOSupported() && !_pboBuffer.empty())
|
|
{
|
|
if (_pboBuffer.size()==1)
|
|
{
|
|
singlePBO(ext);
|
|
}
|
|
else
|
|
{
|
|
multiPBO(ext);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
readPixels();
|
|
}
|
|
}
|
|
|
|
void readPixels();
|
|
|
|
void singlePBO(osg::BufferObject::Extensions* ext);
|
|
|
|
void multiPBO(osg::BufferObject::Extensions* ext);
|
|
|
|
typedef std::vector< osg::ref_ptr<osg::Image> > ImageBuffer;
|
|
typedef std::vector< GLuint > PBOBuffer;
|
|
|
|
osg::GraphicsContext* _gc;
|
|
Mode _mode;
|
|
GLenum _readBuffer;
|
|
std::string _fileName;
|
|
|
|
GLenum _pixelFormat;
|
|
GLenum _type;
|
|
int _width;
|
|
int _height;
|
|
|
|
unsigned int _currentImageIndex;
|
|
ImageBuffer _imageBuffer;
|
|
|
|
unsigned int _currentPboIndex;
|
|
PBOBuffer _pboBuffer;
|
|
|
|
unsigned int _reportTimingFrequency;
|
|
unsigned int _numTimeValuesRecorded;
|
|
double _timeForReadPixels;
|
|
double _timeForFullCopy;
|
|
double _timeForMemCpy;
|
|
osg::Timer_t _previousFrameTick;
|
|
};
|
|
|
|
WindowCaptureCallback(Mode mode, FramePosition position, GLenum readBuffer):
|
|
_mode(mode),
|
|
_position(position),
|
|
_readBuffer(readBuffer)
|
|
{
|
|
}
|
|
|
|
FramePosition getFramePosition() const { return _position; }
|
|
|
|
ContextData* createContextData(osg::GraphicsContext* gc) const
|
|
{
|
|
std::stringstream filename;
|
|
filename << "test_"<<_contextDataMap.size()<<".jpg";
|
|
return new ContextData(gc, _mode, _readBuffer, filename.str());
|
|
}
|
|
|
|
ContextData* getContextData(osg::GraphicsContext* gc) const
|
|
{
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
|
|
osg::ref_ptr<ContextData>& data = _contextDataMap[gc];
|
|
if (!data) data = createContextData(gc);
|
|
|
|
return data.get();
|
|
}
|
|
|
|
virtual void operator () (osg::RenderInfo& renderInfo) const
|
|
{
|
|
glReadBuffer(_readBuffer);
|
|
|
|
osg::GraphicsContext* gc = renderInfo.getState()->getGraphicsContext();
|
|
osg::ref_ptr<ContextData> cd = getContextData(gc);
|
|
cd->read();
|
|
}
|
|
|
|
typedef std::map<osg::GraphicsContext*, osg::ref_ptr<ContextData> > ContextDataMap;
|
|
|
|
Mode _mode;
|
|
FramePosition _position;
|
|
GLenum _readBuffer;
|
|
mutable OpenThreads::Mutex _mutex;
|
|
mutable ContextDataMap _contextDataMap;
|
|
|
|
|
|
};
|
|
|
|
void WindowCaptureCallback::ContextData::updateTimings(osg::Timer_t tick_start,
|
|
osg::Timer_t tick_afterReadPixels,
|
|
osg::Timer_t tick_afterMemCpy,
|
|
unsigned int dataSize)
|
|
{
|
|
if (!_reportTimingFrequency) return;
|
|
|
|
double timeForReadPixels = osg::Timer::instance()->delta_s(tick_start, tick_afterReadPixels);
|
|
double timeForFullCopy = osg::Timer::instance()->delta_s(tick_start, tick_afterMemCpy);
|
|
double timeForMemCpy = osg::Timer::instance()->delta_s(tick_afterReadPixels, tick_afterMemCpy);
|
|
|
|
_timeForReadPixels += timeForReadPixels;
|
|
_timeForFullCopy += timeForFullCopy;
|
|
_timeForMemCpy += timeForMemCpy;
|
|
|
|
++_numTimeValuesRecorded;
|
|
|
|
if (_numTimeValuesRecorded==_reportTimingFrequency)
|
|
{
|
|
timeForReadPixels = _timeForReadPixels/double(_numTimeValuesRecorded);
|
|
timeForFullCopy = _timeForFullCopy/double(_numTimeValuesRecorded);
|
|
timeForMemCpy = _timeForMemCpy/double(_numTimeValuesRecorded);
|
|
|
|
double averageFrameTime = osg::Timer::instance()->delta_s(_previousFrameTick, tick_afterMemCpy)/double(_numTimeValuesRecorded);
|
|
double fps = 1.0/averageFrameTime;
|
|
_previousFrameTick = tick_afterMemCpy;
|
|
|
|
_timeForReadPixels = 0.0;
|
|
_timeForFullCopy = 0.0;
|
|
_timeForMemCpy = 0.0;
|
|
|
|
_numTimeValuesRecorded = 0;
|
|
|
|
double numMPixels = double(_width * _height) / 1000000.0;
|
|
double numMb = double(dataSize) / (1024*1024);
|
|
|
|
int prec = osg::notify(osg::NOTICE).precision(5);
|
|
|
|
if (timeForMemCpy==0.0)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"fps = "<<fps<<", full frame copy = "<<timeForFullCopy*1000.0f<<"ms rate = "<<numMPixels / timeForFullCopy<<" Mpixel/sec, copy speed = "<<numMb / timeForFullCopy<<" Mb/sec"<<std::endl;
|
|
}
|
|
else
|
|
{
|
|
osg::notify(osg::NOTICE)<<"fps = "<<fps<<", full frame copy = "<<timeForFullCopy*1000.0f<<"ms rate = "<<numMPixels / timeForFullCopy<<" Mpixel/sec, "<<numMb / timeForFullCopy<< " Mb/sec "<<
|
|
"time for memcpy = "<<timeForMemCpy*1000.0<<"ms memcpy speed = "<<numMb / timeForMemCpy<<" Mb/sec"<<std::endl;
|
|
}
|
|
osg::notify(osg::NOTICE).precision(prec);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
void WindowCaptureCallback::ContextData::readPixels()
|
|
{
|
|
// std::cout<<"readPixels("<<_fileName<<" image "<<_currentImageIndex<<" "<<_currentPboIndex<<std::endl;
|
|
|
|
unsigned int nextImageIndex = (_currentImageIndex+1)%_imageBuffer.size();
|
|
unsigned int nextPboIndex = _pboBuffer.empty() ? 0 : (_currentPboIndex+1)%_pboBuffer.size();
|
|
|
|
int width=0, height=0;
|
|
getSize(_gc, width, height);
|
|
if (width!=_width || _height!=height)
|
|
{
|
|
std::cout<<" Window resized "<<width<<", "<<height<<std::endl;
|
|
_width = width;
|
|
_height = height;
|
|
}
|
|
|
|
osg::Image* image = _imageBuffer[_currentImageIndex].get();
|
|
|
|
osg::Timer_t tick_start = osg::Timer::instance()->tick();
|
|
|
|
#if 1
|
|
image->readPixels(0,0,_width,_height,
|
|
_pixelFormat,_type);
|
|
#endif
|
|
|
|
osg::Timer_t tick_afterReadPixels = osg::Timer::instance()->tick();
|
|
|
|
updateTimings(tick_start, tick_afterReadPixels, tick_afterReadPixels, image->getTotalSizeInBytes());
|
|
|
|
if (!_fileName.empty())
|
|
{
|
|
// osgDB::writeImageFile(*image, _fileName);
|
|
}
|
|
|
|
_currentImageIndex = nextImageIndex;
|
|
_currentPboIndex = nextPboIndex;
|
|
}
|
|
|
|
void WindowCaptureCallback::ContextData::singlePBO(osg::BufferObject::Extensions* ext)
|
|
{
|
|
// std::cout<<"singelPBO( "<<_fileName<<" image "<<_currentImageIndex<<" "<<_currentPboIndex<<std::endl;
|
|
|
|
unsigned int nextImageIndex = (_currentImageIndex+1)%_imageBuffer.size();
|
|
|
|
int width=0, height=0;
|
|
getSize(_gc, width, height);
|
|
if (width!=_width || _height!=height)
|
|
{
|
|
std::cout<<" Window resized "<<width<<", "<<height<<std::endl;
|
|
_width = width;
|
|
_height = height;
|
|
}
|
|
|
|
GLuint& pbo = _pboBuffer[0];
|
|
|
|
osg::Image* image = _imageBuffer[_currentImageIndex].get();
|
|
if (image->s() != _width ||
|
|
image->t() != _height)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Allocating image "<<std::endl;
|
|
image->allocateImage(_width, _height, 1, _pixelFormat, _type);
|
|
|
|
if (pbo!=0)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"deleting pbo "<<pbo<<std::endl;
|
|
ext->glDeleteBuffers (1, &pbo);
|
|
pbo = 0;
|
|
}
|
|
}
|
|
|
|
|
|
if (pbo==0)
|
|
{
|
|
ext->glGenBuffers(1, &pbo);
|
|
ext->glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, pbo);
|
|
ext->glBufferData(GL_PIXEL_PACK_BUFFER_ARB, image->getTotalSizeInBytes(), 0, GL_STREAM_READ);
|
|
|
|
osg::notify(osg::NOTICE)<<"Generating pbo "<<pbo<<std::endl;
|
|
}
|
|
else
|
|
{
|
|
ext->glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, pbo);
|
|
}
|
|
|
|
osg::Timer_t tick_start = osg::Timer::instance()->tick();
|
|
|
|
#if 1
|
|
glReadPixels(0, 0, _width, _height, _pixelFormat, _type, 0);
|
|
#endif
|
|
|
|
osg::Timer_t tick_afterReadPixels = osg::Timer::instance()->tick();
|
|
|
|
GLubyte* src = (GLubyte*)ext->glMapBuffer(GL_PIXEL_PACK_BUFFER_ARB,
|
|
GL_READ_ONLY_ARB);
|
|
if(src)
|
|
{
|
|
memcpy(image->data(), src, image->getTotalSizeInBytes());
|
|
ext->glUnmapBuffer(GL_PIXEL_PACK_BUFFER_ARB);
|
|
}
|
|
|
|
ext->glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, 0);
|
|
|
|
osg::Timer_t tick_afterMemCpy = osg::Timer::instance()->tick();
|
|
|
|
updateTimings(tick_start, tick_afterReadPixels, tick_afterMemCpy, image->getTotalSizeInBytes());
|
|
|
|
if (!_fileName.empty())
|
|
{
|
|
// osgDB::writeImageFile(*image, _fileName);
|
|
}
|
|
|
|
|
|
_currentImageIndex = nextImageIndex;
|
|
}
|
|
|
|
void WindowCaptureCallback::ContextData::multiPBO(osg::BufferObject::Extensions* ext)
|
|
{
|
|
// std::cout<<"multiPBO( "<<_fileName<<" image "<<_currentImageIndex<<" "<<_currentPboIndex<<std::endl;
|
|
unsigned int nextImageIndex = (_currentImageIndex+1)%_imageBuffer.size();
|
|
unsigned int nextPboIndex = (_currentPboIndex+1)%_pboBuffer.size();
|
|
|
|
int width=0, height=0;
|
|
getSize(_gc, width, height);
|
|
if (width!=_width || _height!=height)
|
|
{
|
|
std::cout<<" Window resized "<<width<<", "<<height<<std::endl;
|
|
_width = width;
|
|
_height = height;
|
|
}
|
|
|
|
GLuint& copy_pbo = _pboBuffer[_currentPboIndex];
|
|
GLuint& read_pbo = _pboBuffer[nextPboIndex];
|
|
|
|
osg::Image* image = _imageBuffer[_currentImageIndex].get();
|
|
if (image->s() != _width ||
|
|
image->t() != _height)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Allocating image "<<std::endl;
|
|
image->allocateImage(_width, _height, 1, _pixelFormat, _type);
|
|
|
|
if (read_pbo!=0)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"deleting pbo "<<read_pbo<<std::endl;
|
|
ext->glDeleteBuffers (1, &read_pbo);
|
|
read_pbo = 0;
|
|
}
|
|
|
|
if (copy_pbo!=0)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"deleting pbo "<<copy_pbo<<std::endl;
|
|
ext->glDeleteBuffers (1, ©_pbo);
|
|
copy_pbo = 0;
|
|
}
|
|
}
|
|
|
|
|
|
bool doCopy = copy_pbo!=0;
|
|
if (copy_pbo==0)
|
|
{
|
|
ext->glGenBuffers(1, ©_pbo);
|
|
ext->glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, copy_pbo);
|
|
ext->glBufferData(GL_PIXEL_PACK_BUFFER_ARB, image->getTotalSizeInBytes(), 0, GL_STREAM_READ);
|
|
|
|
osg::notify(osg::NOTICE)<<"Generating pbo "<<read_pbo<<std::endl;
|
|
}
|
|
|
|
if (read_pbo==0)
|
|
{
|
|
ext->glGenBuffers(1, &read_pbo);
|
|
ext->glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, read_pbo);
|
|
ext->glBufferData(GL_PIXEL_PACK_BUFFER_ARB, image->getTotalSizeInBytes(), 0, GL_STREAM_READ);
|
|
|
|
osg::notify(osg::NOTICE)<<"Generating pbo "<<read_pbo<<std::endl;
|
|
}
|
|
else
|
|
{
|
|
ext->glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, read_pbo);
|
|
}
|
|
|
|
osg::Timer_t tick_start = osg::Timer::instance()->tick();
|
|
|
|
#if 1
|
|
glReadPixels(0, 0, _width, _height, _pixelFormat, _type, 0);
|
|
#endif
|
|
|
|
osg::Timer_t tick_afterReadPixels = osg::Timer::instance()->tick();
|
|
|
|
if (doCopy)
|
|
{
|
|
|
|
ext->glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, copy_pbo);
|
|
|
|
GLubyte* src = (GLubyte*)ext->glMapBuffer(GL_PIXEL_PACK_BUFFER_ARB,
|
|
GL_READ_ONLY_ARB);
|
|
if(src)
|
|
{
|
|
memcpy(image->data(), src, image->getTotalSizeInBytes());
|
|
ext->glUnmapBuffer(GL_PIXEL_PACK_BUFFER_ARB);
|
|
}
|
|
|
|
if (!_fileName.empty())
|
|
{
|
|
// osgDB::writeImageFile(*image, _fileName);
|
|
}
|
|
}
|
|
|
|
ext->glBindBuffer(GL_PIXEL_PACK_BUFFER_ARB, 0);
|
|
|
|
osg::Timer_t tick_afterMemCpy = osg::Timer::instance()->tick();
|
|
|
|
updateTimings(tick_start, tick_afterReadPixels, tick_afterMemCpy, image->getTotalSizeInBytes());
|
|
|
|
_currentImageIndex = nextImageIndex;
|
|
_currentPboIndex = nextPboIndex;
|
|
}
|
|
|
|
void addCallbackToViewer(osgViewer::ViewerBase& viewer, WindowCaptureCallback* callback)
|
|
{
|
|
|
|
if (callback->getFramePosition()==WindowCaptureCallback::START_FRAME)
|
|
{
|
|
osgViewer::ViewerBase::Windows windows;
|
|
viewer.getWindows(windows);
|
|
for(osgViewer::ViewerBase::Windows::iterator itr = windows.begin();
|
|
itr != windows.end();
|
|
++itr)
|
|
{
|
|
osgViewer::GraphicsWindow* window = *itr;
|
|
osg::GraphicsContext::Cameras& cameras = window->getCameras();
|
|
osg::Camera* firstCamera = 0;
|
|
for(osg::GraphicsContext::Cameras::iterator cam_itr = cameras.begin();
|
|
cam_itr != cameras.end();
|
|
++cam_itr)
|
|
{
|
|
if (firstCamera)
|
|
{
|
|
if ((*cam_itr)->getRenderOrder() < firstCamera->getRenderOrder())
|
|
{
|
|
firstCamera = (*cam_itr);
|
|
}
|
|
if ((*cam_itr)->getRenderOrder() == firstCamera->getRenderOrder() &&
|
|
(*cam_itr)->getRenderOrderNum() < firstCamera->getRenderOrderNum())
|
|
{
|
|
firstCamera = (*cam_itr);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
firstCamera = *cam_itr;
|
|
}
|
|
}
|
|
|
|
if (firstCamera)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"First camera "<<firstCamera<<std::endl;
|
|
|
|
firstCamera->setInitialDrawCallback(callback);
|
|
}
|
|
else
|
|
{
|
|
osg::notify(osg::NOTICE)<<"No camera found"<<std::endl;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
osgViewer::ViewerBase::Windows windows;
|
|
viewer.getWindows(windows);
|
|
for(osgViewer::ViewerBase::Windows::iterator itr = windows.begin();
|
|
itr != windows.end();
|
|
++itr)
|
|
{
|
|
osgViewer::GraphicsWindow* window = *itr;
|
|
osg::GraphicsContext::Cameras& cameras = window->getCameras();
|
|
osg::Camera* lastCamera = 0;
|
|
for(osg::GraphicsContext::Cameras::iterator cam_itr = cameras.begin();
|
|
cam_itr != cameras.end();
|
|
++cam_itr)
|
|
{
|
|
if (lastCamera)
|
|
{
|
|
if ((*cam_itr)->getRenderOrder() > lastCamera->getRenderOrder())
|
|
{
|
|
lastCamera = (*cam_itr);
|
|
}
|
|
if ((*cam_itr)->getRenderOrder() == lastCamera->getRenderOrder() &&
|
|
(*cam_itr)->getRenderOrderNum() >= lastCamera->getRenderOrderNum())
|
|
{
|
|
lastCamera = (*cam_itr);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
lastCamera = *cam_itr;
|
|
}
|
|
}
|
|
|
|
if (lastCamera)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Last camera "<<lastCamera<<std::endl;
|
|
|
|
lastCamera->setFinalDrawCallback(callback);
|
|
}
|
|
else
|
|
{
|
|
osg::notify(osg::NOTICE)<<"No camera found"<<std::endl;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
// use an ArgumentParser object to manage the program arguments.
|
|
osg::ArgumentParser arguments(&argc,argv);
|
|
|
|
arguments.getApplicationUsage()->setApplicationName(arguments.getApplicationName());
|
|
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the standard OpenSceneGraph example which loads and visualises 3d models.");
|
|
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
|
|
|
|
osgViewer::Viewer viewer(arguments);
|
|
|
|
unsigned int helpType = 0;
|
|
if ((helpType = arguments.readHelpType()))
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout, helpType);
|
|
return 1;
|
|
}
|
|
|
|
// report any errors if they have occurred when parsing the program arguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
if (arguments.argc()<=1)
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
|
|
return 1;
|
|
}
|
|
|
|
// set up the camera manipulators.
|
|
{
|
|
osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
|
|
|
|
keyswitchManipulator->addMatrixManipulator( '1', "Trackball", new osgGA::TrackballManipulator() );
|
|
keyswitchManipulator->addMatrixManipulator( '2', "Flight", new osgGA::FlightManipulator() );
|
|
keyswitchManipulator->addMatrixManipulator( '3', "Drive", new osgGA::DriveManipulator() );
|
|
keyswitchManipulator->addMatrixManipulator( '4', "Terrain", new osgGA::TerrainManipulator() );
|
|
|
|
std::string pathfile;
|
|
char keyForAnimationPath = '5';
|
|
while (arguments.read("-p",pathfile))
|
|
{
|
|
osgGA::AnimationPathManipulator* apm = new osgGA::AnimationPathManipulator(pathfile);
|
|
if (apm || !apm->valid())
|
|
{
|
|
unsigned int num = keyswitchManipulator->getNumMatrixManipulators();
|
|
keyswitchManipulator->addMatrixManipulator( keyForAnimationPath, "Path", apm );
|
|
keyswitchManipulator->selectMatrixManipulator(num);
|
|
++keyForAnimationPath;
|
|
}
|
|
}
|
|
|
|
viewer.setCameraManipulator( keyswitchManipulator.get() );
|
|
}
|
|
|
|
// add the state manipulator
|
|
viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
|
|
|
|
// add the thread model handler
|
|
viewer.addEventHandler(new osgViewer::ThreadingHandler);
|
|
|
|
// add the window size toggle handler
|
|
viewer.addEventHandler(new osgViewer::WindowSizeHandler);
|
|
|
|
// add the stats handler
|
|
viewer.addEventHandler(new osgViewer::StatsHandler);
|
|
|
|
// add the help handler
|
|
viewer.addEventHandler(new osgViewer::HelpHandler(arguments.getApplicationUsage()));
|
|
|
|
// add the record camera path handler
|
|
viewer.addEventHandler(new osgViewer::RecordCameraPathHandler);
|
|
|
|
// add the LOD Scale handler
|
|
viewer.addEventHandler(new osgViewer::LODScaleHandler);
|
|
|
|
GLenum readBuffer = GL_BACK;
|
|
WindowCaptureCallback::FramePosition position = WindowCaptureCallback::END_FRAME;
|
|
WindowCaptureCallback::Mode mode = WindowCaptureCallback::DOUBLE_PBO;
|
|
|
|
while (arguments.read("--start-frame")) { position = WindowCaptureCallback::START_FRAME; readBuffer = GL_FRONT; }
|
|
while (arguments.read("--end-frame")) position = WindowCaptureCallback::END_FRAME;
|
|
|
|
while (arguments.read("--front")) readBuffer = GL_FRONT;
|
|
while (arguments.read("--back")) readBuffer = GL_BACK;
|
|
|
|
while (arguments.read("--no-pbo")) mode = WindowCaptureCallback::READ_PIXELS;
|
|
while (arguments.read("--single-pbo")) mode = WindowCaptureCallback::SINGLE_PBO;
|
|
while (arguments.read("--double-pbo")) mode = WindowCaptureCallback::DOUBLE_PBO;
|
|
while (arguments.read("--triple-pbo")) mode = WindowCaptureCallback::TRIPLE_PBO;
|
|
|
|
|
|
unsigned int width=1280;
|
|
unsigned int height=1024;
|
|
bool pbufferOnly = false;
|
|
osg::ref_ptr<osg::GraphicsContext> pbuffer;
|
|
if (arguments.read("--pbuffer",width,height) ||
|
|
(pbufferOnly = arguments.read("--pbuffer-only",width,height)))
|
|
{
|
|
osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits;
|
|
traits->x = 0;
|
|
traits->y = 0;
|
|
traits->width = width;
|
|
traits->height = height;
|
|
traits->red = 8;
|
|
traits->green = 8;
|
|
traits->blue = 8;
|
|
traits->alpha = 8;
|
|
traits->windowDecoration = false;
|
|
traits->pbuffer = true;
|
|
traits->doubleBuffer = true;
|
|
traits->sharedContext = 0;
|
|
|
|
pbuffer = osg::GraphicsContext::createGraphicsContext(traits.get());
|
|
if (pbuffer.valid())
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Pixel buffer has been created successfully."<<std::endl;
|
|
}
|
|
else
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Pixel buffer has not been created successfully."<<std::endl;
|
|
}
|
|
|
|
}
|
|
|
|
// load the data
|
|
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
|
|
if (!loadedModel)
|
|
{
|
|
std::cout << arguments.getApplicationName() <<": No data loaded" << std::endl;
|
|
return 1;
|
|
}
|
|
|
|
// any option left unread are converted into errors to write out later.
|
|
arguments.reportRemainingOptionsAsUnrecognized();
|
|
|
|
// report any errors if they have occurred when parsing the program arguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
|
|
// optimize the scene graph, remove redundant nodes and state etc.
|
|
osgUtil::Optimizer optimizer;
|
|
optimizer.optimize(loadedModel.get());
|
|
|
|
viewer.setSceneData( loadedModel.get() );
|
|
|
|
|
|
if (pbuffer.valid())
|
|
{
|
|
osg::ref_ptr<osg::Camera> camera = new osg::Camera;
|
|
camera->setGraphicsContext(pbuffer.get());
|
|
camera->setViewport(new osg::Viewport(0,0,width,height));
|
|
GLenum buffer = pbuffer->getTraits()->doubleBuffer ? GL_BACK : GL_FRONT;
|
|
camera->setDrawBuffer(buffer);
|
|
camera->setReadBuffer(buffer);
|
|
camera->setFinalDrawCallback(new WindowCaptureCallback(mode, position, readBuffer));
|
|
|
|
if (pbufferOnly)
|
|
{
|
|
viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd());
|
|
|
|
viewer.realize();
|
|
}
|
|
else
|
|
{
|
|
viewer.realize();
|
|
|
|
viewer.stopThreading();
|
|
|
|
pbuffer->realize();
|
|
|
|
viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd());
|
|
|
|
viewer.startThreading();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
viewer.realize();
|
|
|
|
addCallbackToViewer(viewer, new WindowCaptureCallback(mode, position, readBuffer));
|
|
}
|
|
|
|
return viewer.run();
|
|
|
|
}
|