bool
OpenEXRInput::open (const std::string &name, ImageSpec &newspec)
{
// Quick check to reject non-exr files
if (! Filesystem::is_regular (name)) {
error ("Could not open file \"%s\"", name.c_str());
return false;
}
bool tiled;
if (! Imf::isOpenExrFile (name.c_str(), tiled)) {
error ("\"%s\" is not an OpenEXR file", name.c_str());
return false;
}
pvt::set_exr_threads ();
m_spec = ImageSpec(); // Clear everything with default constructor
try {
m_input_stream = new OpenEXRInputStream (name.c_str());
} catch (const std::exception &e) {
m_input_stream = NULL;
error ("OpenEXR exception: %s", e.what());
return false;
} catch (...) { // catch-all for edge cases or compiler bugs
m_input_stream = NULL;
error ("OpenEXR exception: unknown");
return false;
}
try {
m_input_multipart = new Imf::MultiPartInputFile (*m_input_stream);
} catch (const std::exception &e) {
delete m_input_stream;
m_input_stream = NULL;
error ("OpenEXR exception: %s", e.what());
return false;
} catch (...) { // catch-all for edge cases or compiler bugs
m_input_stream = NULL;
error ("OpenEXR exception: unknown");
return false;
}
m_nsubimages = m_input_multipart->parts();
m_parts.resize (m_nsubimages);
m_subimage = -1;
m_miplevel = -1;
bool ok = seek_subimage (0, 0, newspec);
if (! ok)
close ();
return ok;
}
bool
OpenEXRInput::open (const std::string &name, ImageSpec &newspec)
{
// Quick check to reject non-exr files
if (! Filesystem::is_regular (name)) {
error ("Could not open file \"%s\"", name.c_str());
return false;
}
bool tiled;
if (! Imf::isOpenExrFile (name.c_str(), tiled)) {
error ("\"%s\" is not an OpenEXR file", name.c_str());
return false;
}
pvt::set_exr_threads ();
m_spec = ImageSpec(); // Clear everything with default constructor
try {
m_input_stream = new OpenEXRInputStream (name.c_str());
}
catch (const std::exception &e) {
m_input_stream = NULL;
error ("OpenEXR exception: %s", e.what());
return false;
}
#ifdef USE_OPENEXR_VERSION2
try {
m_input_multipart = new Imf::MultiPartInputFile (*m_input_stream);
}
catch (const std::exception &e) {
delete m_input_stream;
m_input_stream = NULL;
error ("OpenEXR exception: %s", e.what());
return false;
}
m_nsubimages = m_input_multipart->parts();
#else
try {
if (tiled) {
m_input_tiled = new Imf::TiledInputFile (*m_input_stream);
} else {
m_input_scanline = new Imf::InputFile (*m_input_stream);
}
}
catch (const std::exception &e) {
delete m_input_stream;
m_input_stream = NULL;
error ("OpenEXR exception: %s", e.what());
return false;
}
if (! m_input_scanline && ! m_input_tiled) {
error ("Unknown error opening EXR file");
return false;
}
m_nsubimages = 1; // OpenEXR 1.x did not have multipart
#endif
m_parts.resize (m_nsubimages);
m_subimage = -1;
m_miplevel = -1;
bool ok = seek_subimage (0, 0, newspec);
if (! ok)
close ();
return ok;
}