virtual ReadResult readShader(const std::string& file, const osgDB::ReaderWriter::Options* options) const
{
std::string ext = osgDB::getLowerCaseFileExtension(file);
if (!acceptsExtension(ext)) return ReadResult::FILE_NOT_HANDLED;
std::string fileName = osgDB::findDataFile( file, options );
if (fileName.empty()) return ReadResult::FILE_NOT_FOUND;
osgDB::ifstream istream(fileName.c_str(), std::ios::in | std::ios::binary);
if(!istream) return ReadResult::FILE_NOT_HANDLED;
ReadResult rr = readShader(istream, options);
if(rr.validShader())
{
osg::Shader* shader = rr.getShader();
shader->setFileName(file);
if (shader->getType() == osg::Shader::UNDEFINED)
{
// set type based on filename extension, where possible
if (ext == "frag") shader->setType(osg::Shader::FRAGMENT);
if (ext == "vert") shader->setType(osg::Shader::VERTEX);
if (ext == "geom") shader->setType(osg::Shader::GEOMETRY);
if (ext == "tctrl") shader->setType(osg::Shader::TESSCONTROL);
if (ext == "teval") shader->setType(osg::Shader::TESSEVALUATION);
if (ext == "compute") shader->setType(osg::Shader::COMPUTE);
}
}
return rr;
}
virtual ReadResult readShader(const std::string& file, const osgDB::ReaderWriter::Options* options) const
{
std::string ext = osgDB::getLowerCaseFileExtension(file);
if (!acceptsExtension(ext)) return ReadResult::FILE_NOT_HANDLED;
std::string fileName = osgDB::findDataFile( file, options );
if (fileName.empty()) return ReadResult::FILE_NOT_FOUND;
std::ifstream istream(fileName.c_str(), std::ios::in | std::ios::binary);
if(!istream) return ReadResult::FILE_NOT_HANDLED;
ReadResult rr = readShader(istream, options);
if(rr.validShader()) rr.getShader()->setFileName(file);
return rr;
}
