Method copy_from

src/libOpenImageIO/imagebuf.cpp:654–675

void
ImageBuf::copy_from (const ImageBuf &src)
{
    if (this == &src)
        return;
    const ImageBufImpl *srcimpl (src.impl());
    srcimpl->validate_pixels ();
    const ImageSpec &srcspec (srcimpl->spec());
    ImageBufImpl *impl (this->impl());
    const ImageSpec &spec (impl->spec());
    ASSERT (spec.width == srcspec.width &&
            spec.height == srcspec.height &&
            spec.depth == srcspec.depth &&
            spec.nchannels == srcspec.nchannels);
    impl->realloc ();
    if (spec.deep)
        impl->m_deepdata = srcimpl->m_deepdata;
    else
        src.get_pixels (src.xbegin(), src.xend(), src.ybegin(), src.yend(),
                        src.zbegin(), src.zend(), spec.format,
                        impl->m_localpixels);
}