Esempi in C++ (Cpp) per MultiPartInputFile::parts

Esempio n. 1

File: exrinput.cpp Progetto: AheadIO/oiio

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;
}

Esempio n. 2

File: exrinput.cpp Progetto: gmarcusm/oiio

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;
}