FGFS-4.1/OpenSceneGraph
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improve example to get command arguments

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This commit is contained in:
Julien Valentin
2018-01-13 21:29:02 +01:00
parent 4c0a861f91
commit 480b452e38
1 changed files with 122 additions and 96 deletions
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218
examples/osgsampler/osgSampler.cpp
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@@ -1,5 +1,5 @@
/* -*-c++-*-
* Copyright (C) 2017 Julien Valentin <mp3butcher@hotmail.com>
* Copyright (C) 2018 Julien Valentin <mp3butcher@hotmail.com>
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
@@ -23,6 +23,7 @@
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <osgUtil/Optimizer>
/// add two composite texture color
static const char* fragSource =
@@ -37,12 +38,12 @@ static const char* fragSource =
};
class KeyboardEventHandler : public osgGA::GUIEventHandler
class SamplersKeyboardEventHandler : public osgGA::GUIEventHandler
{
public:
KeyboardEventHandler(osg::Sampler* tessInnerU, osg::Sampler* tessOuterU,osg::StateSet* ss):
SamplersKeyboardEventHandler(osg::Sampler* tessInnerU, osg::Sampler* tessOuterU):
_sampler1(tessInnerU),
_sampler2(tessOuterU),_ss(ss){}
_sampler2(tessOuterU){}
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& gaa)
{
@@ -63,7 +64,6 @@ public:
_sampler2->setFilter(osg::Texture::MAG_FILTER,newone);
_sampler2->setFilter(osg::Texture::MIN_FILTER,newone);
return true;
}
}
return osgGA::GUIEventHandler::handle(ea, gaa);
@@ -72,10 +72,21 @@ public:
private:
osg::Sampler* _sampler1;
osg::Sampler* _sampler2;
osg::StateSet* _ss;
};
class StateCollec: public osg::NodeVisitor{
public:
StateCollec():osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN){}
virtual void apply(osg::Node& node){
osg::StateSet *ss=node.getStateSet();
if(ss) _statesets.insert(ss);
traverse(node);
}
std::set<osg::StateSet*> _statesets;
std::set<osg::StateSet*> & getStateSets(){return _statesets;}
};
int main(int argc, char* argv[])
{
osg::ArgumentParser arguments(&argc,argv);
@@ -92,116 +103,131 @@ int main(int argc, char* argv[])
osg::ref_ptr<osg::Node> loadedModel = osgDB::readRefNodeFiles(arguments);
osg::ref_ptr<osg::Node> geode ;
if (!loadedModel)
osg::ref_ptr<osg::Sampler > sampler1, sampler2;
if (loadedModel)
{
geode = new osg::Geode;
((osg::Geode*)geode.get())->addDrawable(osg::createTexturedQuadGeometry(osg::Vec3(0,0,0),osg::Vec3(1,0,0),osg::Vec3(0,0,1) ));
///ensure loaded have Sampler
geode=loadedModel;
StateCollec sc;
geode->accept(sc);
for(std::set<osg::StateSet*>::iterator it=sc.getStateSets().begin();it != sc.getStateSets().end(); ++it)
{
osg::Sampler::generateSamplerObjects(*(*it));
if(!sampler1.valid())
sampler1 = sampler2 = (osg::Sampler*)(*it)->getTextureAttribute(0, osg::StateAttribute::SAMPLER);
else
sampler2=(osg::Sampler*)(*it)->getTextureAttribute(0, osg::StateAttribute::SAMPLER);
}
if(sampler1.valid()&&sampler2.valid()){
OSG_WARN<<"2samplers manipulator setted"<<std::endl;
viewer.addEventHandler(new SamplersKeyboardEventHandler(sampler1, sampler2));
}
}
else
{
geode=loadedModel;
}
///createQuadWith2TexturesMix
geode = new osg::Geode;
((osg::Geode*)geode.get())->addDrawable(osg::createTexturedQuadGeometry(osg::Vec3(0,0,0),osg::Vec3(1,0,0),osg::Vec3(0,0,1) ));
osg::ref_ptr< osg::Texture2D> tex1, tex2;
osg::ref_ptr<osg::Sampler > sampler1, sampler2;
osg::ref_ptr< osg::Texture2D> tex1, tex2;
tex1=new osg::Texture2D();
tex2=new osg::Texture2D();
tex1=new osg::Texture2D();
tex2=new osg::Texture2D();
sampler1=new osg::Sampler();
sampler2=new osg::Sampler();
sampler1=new osg::Sampler();
sampler2=new osg::Sampler();
osg::Vec2ui resolution(4,4);
{
///first texture//NO RED
unsigned char *data = new unsigned char[(resolution.x()* resolution.y()) * 4];
unsigned char * ptr=data;
unsigned int sw=0,cptx=0;
while (ptr != data + sizeof(unsigned char)*(resolution.x()* resolution.y()) * 4)
osg::Vec2ui resolution(4,4);
{
if(sw==1)
///first texture//NO RED
unsigned char *data = new unsigned char[(resolution.x()* resolution.y()) * 4];
unsigned char * ptr=data;
unsigned int sw=0, cptx=0;
while (ptr != data + sizeof(unsigned char)*(resolution.x()* resolution.y()) * 4)
{
*ptr++=0;
*ptr++=0xff;
*ptr++=0xff;
*ptr++=0xff;
if(sw==1)
{
*ptr++=0; *ptr++=0xff; *ptr++=0xff; *ptr++=0xff;
}
else
{
*ptr++=0; *ptr++=0; *ptr++=0; *ptr++=0xff;
}
if(++cptx<resolution.x())sw=sw?0:1;
else cptx=0;
}
else
{
*ptr++=0;
*ptr++=0;
*ptr++=0;
*ptr++=0xff;
}
if(++cptx<resolution.x())sw=sw?0:1;
else cptx=0;
osg::ref_ptr<osg::Image >im = new osg::Image();
im->setImage(resolution.x(), resolution.y(), 1,GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, data, osg::Image::USE_NEW_DELETE);
im->dirty();
tex1->setImage(im);
}
osg::ref_ptr<osg::Image >im = new osg::Image();
im->setImage(resolution.x(), resolution.y(), 1,GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, data, osg::Image::USE_NEW_DELETE);
im->dirty();
tex1->setImage(im);
}
{
///second texture// RED ONLY
unsigned char *data = new unsigned char[(resolution.x()* resolution.y()) * 4];
unsigned char * ptr=data;
unsigned int sw=0,cptx=0;
while (ptr != data + sizeof(unsigned char)*(resolution.x()* resolution.y()) * 4)
{
if(sw==1)
///second texture// RED ONLY
unsigned char *data = new unsigned char[(resolution.x()* resolution.y()) * 4];
unsigned char * ptr=data;
unsigned int sw=0,cptx=0;
while (ptr != data + sizeof(unsigned char)*(resolution.x()* resolution.y()) * 4)
{
*ptr++=255;
*ptr++=0;
*ptr++=0;
*ptr++=255;
if(sw==1)
{
*ptr++=255; *ptr++=0; *ptr++=0; *ptr++=255;
}
else
{
*ptr++=0; *ptr++=0; *ptr++=0; *ptr++=255;
}
if(++cptx<resolution.x())sw=sw?0:1;
else cptx=0;
}
else
{
*ptr++=0;
*ptr++=0;
*ptr++=0;
*ptr++=255;
}
if(++cptx<resolution.x())sw=sw?0:1;
else cptx=0;
osg::ref_ptr<osg::Image >im = new osg::Image();
im->setImage(resolution.x(), resolution.y(), 1,GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, data, osg::Image::USE_NEW_DELETE);
im->dirty();
tex2->setImage(im);
}
osg::ref_ptr<osg::Image >im = new osg::Image();
im->setImage(resolution.x(), resolution.y(), 1,GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, data, osg::Image::USE_NEW_DELETE);
im->dirty();
tex2->setImage(im);
///Overrided Filtering setup
tex1->setFilter(osg::Texture::MAG_FILTER,osg::Texture::NEAREST);
tex1->setFilter(osg::Texture::MIN_FILTER,osg::Texture::NEAREST);
tex2->setFilter(osg::Texture::MAG_FILTER,osg::Texture::NEAREST);
tex2->setFilter(osg::Texture::MIN_FILTER,osg::Texture::NEAREST);
///Filter Override samplers setup
sampler1->setFilter(osg::Texture::MAG_FILTER,osg::Texture::LINEAR);
sampler1->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR);
sampler2->setFilter(osg::Texture::MAG_FILTER,osg::Texture::LINEAR);
sampler2->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR);
osg::StateSet *ss;
ss = geode->getOrCreateStateSet();
ss->setTextureAttribute(0, tex1,osg::StateAttribute::ON);
ss->setTextureAttribute(1, tex2,osg::StateAttribute::ON);
//#define TEST_SAMPLER_OBJECT_AUTO_PORT 1
#ifdef TEST_SAMPLER_OBJECT_AUTO_PORT
osg::Sampler::generateSamplerObjects(*ss)
if(
(sampler1= static_cast<osg::Sampler*>(ss->getTextureAttribute(0,osg::StateAttribute::SAMPLER)))&&
(sampler2= static_cast<osg::Sampler*>(ss->getTextureAttribute(1,osg::StateAttribute::SAMPLER)))
)
OSG_WARN<<"both samplers are generated"<<std::endl;
#else
ss->setTextureAttribute(0,sampler1,osg::StateAttribute::ON);
ss->setTextureAttribute(1,sampler2,osg::StateAttribute::ON);
#endif
ss->addUniform(new osg::Uniform("tex1",(int)0));
ss->addUniform(new osg::Uniform("tex2",(int)1));
ss->setAttribute(program.get());
viewer.addEventHandler(new SamplersKeyboardEventHandler(sampler1, sampler2));
}
///Overrided Filtering setup
tex1->setFilter(osg::Texture::MAG_FILTER,osg::Texture::NEAREST);
tex1->setFilter(osg::Texture::MIN_FILTER,osg::Texture::NEAREST);
tex2->setFilter(osg::Texture::MAG_FILTER,osg::Texture::NEAREST);
tex2->setFilter(osg::Texture::MIN_FILTER,osg::Texture::NEAREST);
///Filter Override samplers setup
sampler1->setFilter(osg::Texture::MAG_FILTER,osg::Texture::LINEAR);
sampler1->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR);
sampler2->setFilter(osg::Texture::MAG_FILTER,osg::Texture::LINEAR);
sampler2->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR);
osg::StateSet *ss;
ss = geode->getOrCreateStateSet();
ss->setTextureAttribute(0,tex1,osg::StateAttribute::ON);
ss->setTextureAttribute(1,tex2,osg::StateAttribute::ON);
ss->setTextureAttribute(0,sampler1,osg::StateAttribute::ON);
ss->setTextureAttribute(1,sampler2,osg::StateAttribute::ON);
ss->addUniform(new osg::Uniform("tex1",(int)0));
ss->addUniform(new osg::Uniform("tex2",(int)1));
ss->setAttribute(program.get());
viewer.addEventHandler(new KeyboardEventHandler(sampler1, sampler2,ss));
viewer.addEventHandler(new osgViewer::StatsHandler);
viewer.addEventHandler(new osgViewer::HelpHandler(arguments.getApplicationUsage()));
viewer.addEventHandler(new osgViewer::WindowSizeHandler());
viewer.setSceneData(geode.get());
return viewer.run();