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2.8 branch: This is a simple copy from trunk, no fancy merges, just to get the osgmovie example up to date. Effectively, this is osgmovie as of trunk rev up to and including r10963.

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This commit is contained in:
Paul MARTZ
2010-03-19 16:57:12 +00:00
parent 6d1a94c785
commit f02caa5371
2 changed files with 222 additions and 35 deletions
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12
examples/osgmovie/CMakeLists.txt
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@@ -1,9 +1,19 @@
# INCLUDE_DIRECTORIES( ${OPENAL_INCLUDE_DIR} )
# SET(TARGET_EXTERNAL_LIBRARIES ${OPENAL_LIBRARY} alut)
IF (SDL_FOUND)
SET(TARGET_EXTERNAL_LIBRARIES ${SDL_LIBRARY} )
INCLUDE_DIRECTORIES(${SDL_INCLUDE_DIR} )
ADD_DEFINITIONS(-DUSE_SDL)
IF (MINGW)
SET(TARGET_EXTERNAL_LIBRARIES ${TARGET_EXTERNAL_LIBRARIES} winmm dinput ddraw dxguid)
ENDIF()
ENDIF(SDL_FOUND)
SET(TARGET_SRC osgmovie.cpp )
SET(TARGET_ADDED_LIBRARIES osgGA )
# SET(TARGET_EXTERNAL_LIBRARIES ${OPENAL_LIBRARY} alut)
#### end var setup ###
SETUP_EXAMPLE(osgmovie)

245
examples/osgmovie/osgmovie.cpp
View File

@@ -43,7 +43,7 @@ class MovieEventHandler : public osgGA::GUIEventHandler
{
public:
MovieEventHandler():_playToggle(true),_trackMouse(false) {}
MovieEventHandler():_trackMouse(false) {}
void setMouseTracking(bool track) { _trackMouse = track; }
bool getMouseTracking() const { return _trackMouse; }
@@ -116,7 +116,6 @@ protected:
};
bool _playToggle;
bool _trackMouse;
ImageStreamList _imageStreamList;
unsigned int _seekIncr;
@@ -212,17 +211,16 @@ bool MovieEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
itr!=_imageStreamList.end();
++itr)
{
_playToggle = !_playToggle;
if ( _playToggle )
osg::ImageStream::StreamStatus playToggle = (*itr)->getStatus();
if (playToggle != osg::ImageStream::PLAYING)
{
// playing, so pause
std::cout<<"Play"<<std::endl;
std::cout<< (*itr).get() << " Play"<<std::endl;
(*itr)->play();
}
else
{
// playing, so pause
std::cout<<"Pause"<<std::endl;
std::cout<< (*itr).get() << " Pause"<<std::endl;
(*itr)->pause();
}
}
@@ -234,7 +232,7 @@ bool MovieEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
itr!=_imageStreamList.end();
++itr)
{
std::cout<<"Restart"<<std::endl;
std::cout<< (*itr).get() << " Restart"<<std::endl;
(*itr)->rewind();
(*itr)->play();
}
@@ -265,17 +263,53 @@ bool MovieEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
{
if ( (*itr)->getLoopingMode() == osg::ImageStream::LOOPING)
{
std::cout<<"Toggle Looping Off"<<std::endl;
std::cout<< (*itr).get() << " Toggle Looping Off"<<std::endl;
(*itr)->setLoopingMode( osg::ImageStream::NO_LOOPING );
}
else
{
std::cout<<"Toggle Looping On"<<std::endl;
std::cout<< (*itr).get() << " Toggle Looping On"<<std::endl;
(*itr)->setLoopingMode( osg::ImageStream::LOOPING );
}
}
return true;
}
else if (ea.getKey()=='+')
{
for(ImageStreamList::iterator itr=_imageStreamList.begin();
itr!=_imageStreamList.end();
++itr)
{
double tm = (*itr)->getTimeMultiplier();
tm += 0.1;
(*itr)->setTimeMultiplier(tm);
std::cout << (*itr).get() << " Increase speed rate "<< (*itr)->getTimeMultiplier() << std::endl;
}
return true;
}
else if (ea.getKey()=='-')
{
for(ImageStreamList::iterator itr=_imageStreamList.begin();
itr!=_imageStreamList.end();
++itr)
{
double tm = (*itr)->getTimeMultiplier();
tm -= 0.1;
(*itr)->setTimeMultiplier(tm);
std::cout << (*itr).get() << " Decrease speed rate "<< (*itr)->getTimeMultiplier() << std::endl;
}
return true;
}
else if (ea.getKey()=='o')
{
for(ImageStreamList::iterator itr=_imageStreamList.begin();
itr!=_imageStreamList.end();
++itr)
{
std::cout<< (*itr).get() << " Frame rate "<< (*itr)->getFrameRate() <<std::endl;
}
return true;
}
return false;
}
@@ -290,6 +324,9 @@ void MovieEventHandler::getUsage(osg::ApplicationUsage& usage) const
usage.addKeyboardMouseBinding("p","Play/Pause movie");
usage.addKeyboardMouseBinding("r","Restart movie");
usage.addKeyboardMouseBinding("l","Toggle looping of movie");
usage.addKeyboardMouseBinding("+","Increase speed of movie");
usage.addKeyboardMouseBinding("-","Decrease speed of movie");
usage.addKeyboardMouseBinding("o","Display frame rate of movie");
usage.addKeyboardMouseBinding(">","Advance the movie using seek");
}
@@ -339,26 +376,24 @@ osg::Geometry* myCreateTexturedQuadGeometry(const osg::Vec3& pos,float width,flo
}
}
class CustomAudioSink : public osg::AudioSink
#if USE_SDL
class SDLAudioSink : public osg::AudioSink
{
public:
CustomAudioSink(osg::AudioStream* audioStream):
SDLAudioSink(osg::AudioStream* audioStream):
_started(false),
_paused(false),
_audioStream(audioStream) {}
virtual void startPlaying()
{
_playing = true;
osg::notify(osg::NOTICE)<<"CustomAudioSink()::startPlaying()"<<std::endl;
osg::notify(osg::NOTICE)<<" audioFrequency()="<<_audioStream->audioFrequency()<<std::endl;
osg::notify(osg::NOTICE)<<" audioNbChannels()="<<_audioStream->audioNbChannels()<<std::endl;
osg::notify(osg::NOTICE)<<" audioSampleFormat()="<<_audioStream->audioSampleFormat()<<std::endl;
}
virtual bool playing() const { return _playing; }
~SDLAudioSink();
virtual void play();
virtual void pause();
virtual void stop();
virtual bool playing() const { return _started && !_paused; }
bool _started;
@@ -366,6 +401,8 @@ class CustomAudioSink : public osg::AudioSink
osg::observer_ptr<osg::AudioStream> _audioStream;
};
#endif
int main(int argc, char** argv)
{
// use an ArgumentParser object to manage the program arguments.
@@ -472,8 +509,12 @@ int main(int argc, char** argv)
bool xyPlane = fullscreen;
bool useOpenALAudio = false;
while(arguments.read("--OpenAL")) { useOpenALAudio = true; }
bool useAudioSink = false;
while(arguments.read("--audio")) { useAudioSink = true; }
#if USE_SDL
unsigned int numAudioStreamsEnabled = 0;
#endif
for(int i=1;i<arguments.argc();++i)
{
@@ -484,11 +525,18 @@ int main(int argc, char** argv)
if (imagestream)
{
osg::ImageStream::AudioStreams& audioStreams = imagestream->getAudioStreams();
if (useOpenALAudio && !audioStreams.empty())
if (useAudioSink && !audioStreams.empty())
{
osg::AudioStream* audioStream = audioStreams[0].get();
osg::notify(osg::NOTICE)<<"AudioStream read ["<<audioStream->getName()<<"]"<<std::endl;
audioStream->setAudioSink(new CustomAudioSink(audioStream));
#if USE_SDL
if (numAudioStreamsEnabled==0)
{
audioStream->setAudioSink(new SDLAudioSink(audioStream));
++numAudioStreamsEnabled;
}
#endif
}
@@ -497,14 +545,27 @@ int main(int argc, char** argv)
if (image)
{
osg::notify(osg::NOTICE)<<"image->s()"<<image->s()<<" image-t()="<<image->t()<<std::endl;
osg::notify(osg::NOTICE)<<"image->s()"<<image->s()<<" image-t()="<<image->t()<<" aspectRatio="<<image->getPixelAspectRatio()<<std::endl;
geode->addDrawable(myCreateTexturedQuadGeometry(pos,image->s(),image->t(),image, useTextureRectangle, xyPlane, flip));
float width = image->s() * image->getPixelAspectRatio();
float height = image->t();
bottomright = pos + osg::Vec3(static_cast<float>(image->s()),static_cast<float>(image->t()),0.0f);
osg::ref_ptr<osg::Drawable> drawable = myCreateTexturedQuadGeometry(pos, width, height,image, useTextureRectangle, xyPlane, flip);
if (image->isImageTranslucent())
{
osg::notify(osg::NOTICE)<<"Transparent movie, enabling blending."<<std::endl;
if (xyPlane) pos.y() += image->t()*1.05f;
else pos.z() += image->t()*1.05f;
drawable->getOrCreateStateSet()->setMode(GL_BLEND, osg::StateAttribute::ON);
drawable->getOrCreateStateSet()->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
}
geode->addDrawable(drawable.get());
bottomright = pos + osg::Vec3(width,height,0.0f);
if (xyPlane) pos.y() += height*1.05f;
else pos.z() += height*1.05f;
}
else
{
@@ -545,8 +606,44 @@ int main(int argc, char** argv)
if (fullscreen)
{
viewer.realize();
viewer.getCamera()->setClearColor(osg::Vec4(0.0f,0.0f,0.0f,1.0f));
float screenAspectRatio = 1280.0f/1024.0f;
osg::GraphicsContext::WindowingSystemInterface* wsi = osg::GraphicsContext::getWindowingSystemInterface();
if (wsi)
{
unsigned int width, height;
wsi->getScreenResolution(osg::GraphicsContext::ScreenIdentifier(0), width, height);
screenAspectRatio = float(width) / float(height);
}
float modelAspectRatio = (bottomright.x()-topleft.x())/(bottomright.y()-topleft.y());
viewer.getCamera()->setViewMatrix(osg::Matrix::identity());
osg::Vec3 center = (bottomright + topleft)*0.5f;
osg::Vec3 dx(bottomright.x()-center.x(), 0.0f, 0.0f);
osg::Vec3 dy(0.0f, topleft.y()-center.y(), 0.0f);
float ratio = modelAspectRatio/screenAspectRatio;
if (ratio>1.0f)
{
// use model width as the control on model size.
bottomright = center + dx - dy * ratio;
topleft = center - dx + dy * ratio;
}
else
{
// use model height as the control on model size.
bottomright = center + dx / ratio - dy;
topleft = center - dx / ratio + dy;
}
viewer.getCamera()->setProjectionMatrixAsOrtho2D(topleft.x(),bottomright.x(),topleft.y(),bottomright.y());
while(!viewer.done())
@@ -562,3 +659,83 @@ int main(int argc, char** argv)
}
}
#if USE_SDL
#include "SDL.h"
static void soundReadCallback(void * user_data, uint8_t * data, int datalen)
{
SDLAudioSink * sink = reinterpret_cast<SDLAudioSink*>(user_data);
osg::ref_ptr<osg::AudioStream> as = sink->_audioStream.get();
if (as.valid())
{
as->consumeAudioBuffer(data, datalen);
}
}
SDLAudioSink::~SDLAudioSink()
{
stop();
}
void SDLAudioSink::play()
{
if (_started)
{
if (_paused)
{
SDL_PauseAudio(0);
_paused = false;
}
return;
}
_started = true;
_paused = false;
osg::notify(osg::NOTICE)<<"SDLAudioSink()::startPlaying()"<<std::endl;
osg::notify(osg::NOTICE)<<" audioFrequency()="<<_audioStream->audioFrequency()<<std::endl;
osg::notify(osg::NOTICE)<<" audioNbChannels()="<<_audioStream->audioNbChannels()<<std::endl;
osg::notify(osg::NOTICE)<<" audioSampleFormat()="<<_audioStream->audioSampleFormat()<<std::endl;
SDL_AudioSpec specs = { 0 };
SDL_AudioSpec wanted_specs = { 0 };
wanted_specs.freq = _audioStream->audioFrequency();
wanted_specs.format = AUDIO_S16SYS;
wanted_specs.channels = _audioStream->audioNbChannels();
wanted_specs.silence = 0;
wanted_specs.samples = 1024;
wanted_specs.callback = soundReadCallback;
wanted_specs.userdata = this;
if (SDL_OpenAudio(&wanted_specs, &specs) < 0)
throw "SDL_OpenAudio() failed (" + std::string(SDL_GetError()) + ")";
SDL_PauseAudio(0);
}
void SDLAudioSink::pause()
{
if (_started)
{
SDL_PauseAudio(1);
_paused = true;
}
}
void SDLAudioSink::stop()
{
if (_started)
{
if (!_paused) SDL_PauseAudio(1);
SDL_CloseAudio();
osg::notify(osg::NOTICE)<<"~SDLAudioSink() destructor, but still playing"<<std::endl;
}
}
#endif