bool StdFileManager::GetUTF8BOMFileString(const str_type::string &fileName, str_type::string &out)
{
FileBuffer buffer;
if (GetFileBuffer(fileName, buffer))
{
// TODO optimize it
str_type::stringstream ss;
unsigned char *adr = buffer->GetAddress();
for (unsigned long t = 3; t < buffer->GetBufferSize(); t++)
{
ss << static_cast<char>(adr[t]);
}
out = ss.str();
return true;
}
else
{
return false;
}
}
bool StdFileManager::GetAnsiFileString(const str_type::string &fileName, str_type::string &out)
{
FileBuffer buffer;
if (GetFileBuffer(fileName, buffer))
{
// TODO optimize it
str_type::stringstream ss;
unsigned char *adr = buffer->GetAddress();
for (unsigned long t = 0; t < buffer->GetBufferSize(); t++)
{
const char c = static_cast<char>(adr[t]);
if (c != 0x0D) // remove all carriage return
ss << c;
}
out = ss.str();
return true;
}
else
{
return false;
}
}
void OsgMainApp::loadModels(){
//LOGI ("OsgMainApp::loadModels 1111");
if(_vModelsToLoad.size()==0) return;
//LOGI ("OsgMainApp::loadModels 22222");
osg::notify(osg::ALWAYS)<<"There are "<<_vModelsToLoad.size()<<" models to load"<<std::endl;
LOGI ("OsgMainApp::loadModels _vModelsToLoad.size() %d", _vModelsToLoad.size());
Model newModel;
for(unsigned int i=0; i<_vModelsToLoad.size(); i++){
newModel = _vModelsToLoad[i];
osg::notify(osg::ALWAYS)<<"Loading: "<<newModel.filename<<std::endl;
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFile(newModel.filename);
if (loadedModel == 0) {
osg::notify(osg::ALWAYS)<<"Model not loaded"<<std::endl;
} else {
osg::notify(osg::ALWAYS)<<"Model loaded"<<std::endl;
_vModels.push_back(newModel);
loadedModel->setName(newModel.name);
osg::Uniform* samUniform = new osg::Uniform(osg::Uniform::SAMPLER_2D,
"sam");
samUniform->set(0);
loadedModel->getOrCreateStateSet()->addUniform(samUniform);
//
// osg::Uniform* pUnModelViewProjection = new osg::Uniform(osg::Uniform::FLOAT_MAT4, "gl_ModelViewProjectionMatrix");
// loadedModel->getOrCreateStateSet()->addUniform(pUnModelViewProjection);
//
// osg::Matrixf mModelView;
// pUnModelViewProjection->get(mModelView);
//
// osg::Matrixf mModelViewInverse;
// mModelViewInverse.invert(mModelView);
//
// osg::Uniform* pUnModelViewProjectionInverse = new osg::Uniform(osg::Uniform::FLOAT_MAT4, "uModelViewMatrixInverse");
// loadedModel->getOrCreateStateSet()->addUniform(pUnModelViewProjectionInverse);
long iFileLen = 0;
char* pszVertexShader = GetFileBuffer("/sdcard/osg/a.vs", iFileLen);
char* pszFragmentShader = GetFileBuffer("/sdcard/osg/a.fs", iFileLen);
osg::Shader * vshader = new osg::Shader(osg::Shader::VERTEX, pszVertexShader );
osg::Shader * fshader = new osg::Shader(osg::Shader::FRAGMENT, pszFragmentShader );
osg::Program * prog = new osg::Program;
prog->addShader ( vshader );
prog->addShader ( fshader );
loadedModel->getOrCreateStateSet()->setAttribute ( prog );
delete [] pszVertexShader;
delete [] pszFragmentShader;
// osg::ref_ptr<osg::Image> image = osgDB::readImageFile("/sdcard/Present3D/sunset.bmp");
//
//// osg::ref_ptr<osg::Image> image = new osg::Image;
//// image->allocateImage(256, 256, 4, GL_RGBA, GL_UNSIGNED_BYTE);
//// image->setInternalTextureFormat(GL_RGBA);
//
// if (image.get())
// {
//
//// unsigned char * pData = image->data();
//// memset(pData, 255, 256 * 256 * 4);
//
// osg::ref_ptr<osg::Texture2D> texture=new osg::Texture2D();
// texture->setDataVariance(osg::Object::DYNAMIC);
// texture->setImage(image.get());
//
// //设置自动生成纹理坐标
// osg::ref_ptr<osg::TexGen> texgen=new osg::TexGen();
// texgen->setMode(osg::TexGen::SPHERE_MAP);
//
// //设置纹理环境，模式为BLEND
// osg::ref_ptr<osg::TexEnv> texenv=new osg::TexEnv;
// texenv->setMode(osg::TexEnv::ADD);
// texenv->setColor(osg::Vec4(0.6,0.6,0.6,0.0));
//
// //启动单元一自动生成纹理坐标，并使用纹理
// osg::ref_ptr<osg::StateSet> state=new osg::StateSet;
// state->setTextureAttributeAndModes(1,texture.get(),osg::StateAttribute::ON);
// state->setTextureAttributeAndModes(1,texgen.get(),osg::StateAttribute::ON);
// state->setTextureAttribute(1,texenv.get());
//
// loadedModel->setStateSet(state.get());
//
// LOGE("osgDB::readImageFile ok");
// }
// else
// {
// LOGE("osgDB::readImageFile err bmp 3");
// }
// osg::ref_ptr<osg::Node> theNode = createNode();
_trans =new osg::MatrixTransform;
_trans->setMatrix(osg::Matrix::rotate(0,1,0,0));
_trans->addChild(loadedModel);
// _trans->addChild(theNode);
// 取模型的包围盒
const osg::BoundingSphere bs = _trans->getBound();
float radius = bs.radius();
_xFactor = radius / 100;
// _root->addChild(loadedModel);
_root->addChild(_trans);
}
}
osgViewer::Viewer::Windows windows;
_viewer->getWindows(windows);
for(osgViewer::Viewer::Windows::iterator itr = windows.begin();itr != windows.end();++itr)
{
(*itr)->getState()->setUseModelViewAndProjectionUniforms(true);
(*itr)->getState()->setUseVertexAttributeAliasing(true);
}
_viewer->setSceneData(NULL);
_viewer->setSceneData(_root.get());
_manipulator->getNode();
_viewer->home();
_viewer->getDatabasePager()->clear();
_viewer->getDatabasePager()->registerPagedLODs(_root.get());
_viewer->getDatabasePager()->setUpThreads(3, 1);
_viewer->getDatabasePager()->setTargetMaximumNumberOfPageLOD(2);
_viewer->getDatabasePager()->setUnrefImageDataAfterApplyPolicy(true, true);
_vModelsToLoad.clear();
}
