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Merge pull request #103 from marchelbling/update_stl

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Update stl.

    fixes magics color parsing
    adds support for incomplete binary stl files
This commit is contained in:
OpenSceneGraph git repository 2016-07-05 18:04:50 +01:00 committed by GitHub
commit bb509879ca
1 changed files with 11 additions and 3 deletions
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14
src/osgPlugins/stl/ReaderWriterSTL.cpp
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@ -405,8 +405,8 @@ bool fileComesFromMagics(FILE *fp, osg::Vec4& magicsColor)
::rewind(fp); ::rewind(fp);
size_t bytes_read = fread((void*) &header, sizeof(header), 1, fp); if (fread((void*) &header, sizeof(header), 1, fp) != 1)
if (bytes_read!=sizeof(header)) return false; return false;
if (::fseek(fp, sizeof_StlHeader, SEEK_SET)!=0) if (::fseek(fp, sizeof_StlHeader, SEEK_SET)!=0)
{ {
@ -481,8 +481,16 @@ osgDB::ReaderWriter::ReadResult ReaderWriterSTL::readNode(const std::string& fil
std::string header_text(header.text, sizeof(header.text)); std::string header_text(header.text, sizeof(header.text));
if (stb.st_size == expectLen) if (header_text.find("solid") == std::string::npos || stb.st_size == expectLen)
{ {
if(stb.st_size < expectLen)
{
unsigned int facets = (stb.st_size - sizeof_StlHeader) / sizeof_StlFacet;
OSG_WARN << "Warning: [[stl]] Incomplete file. "
<< "Attempting to read " << facets << " out of " << expectFacets << " facets expected."
<< std::endl;
expectFacets = facets;
}
isBinary = true; isBinary = true;
} }
else if (header_text.find("solid") != std::string::npos) else if (header_text.find("solid") != std::string::npos)