Method read

src/libtexture/imagecache.cpp:1229–1252

void
ImageCacheTile::read (ImageCachePerThreadInfo *thread_info)
{
    size_t size = memsize_needed ();
    ASSERT (memsize() == 0 && size > 0);
    m_pixels.reset (new char [m_pixels_size = size]);
    ImageCacheFile &file (m_id.file());
    m_valid = file.read_tile (thread_info, m_id.subimage(), m_id.miplevel(),
                              m_id.x(), m_id.y(), m_id.z(),
                              file.datatype(m_id.subimage()), &m_pixels[0]);
    m_id.file().imagecache().incr_mem (size);
    if (! m_valid) {
        m_used = false;  // Don't let it hold mem if invalid
#if 0
        std::cerr << "(1) error reading tile " << m_id.x() << ' ' << m_id.y()
                  << ' ' << m_id.z()
                  << " subimg=" << m_id.subimage()
                  << " mip=" << m_id.miplevel()
                  << " from " << file.filename() << "\n";
#endif
    }
    m_pixels_ready = true;
    // FIXME -- for shadow, fill in mindepth, maxdepth
}