+void Bufferable::upload_data(char *target) const
+{
+ if(target)
+ {
+ const char *source = reinterpret_cast<const char *>(get_data_pointer());
+ copy(source, source+get_data_size(), target);
+ }
+ else
+ buffer->sub_data(offset, get_data_size(), get_data_pointer());
+}
+
+
+Bufferable::AsyncUpdater::AsyncUpdater(const Bufferable &b):
+ bufferable(b)
+{
+ buffer_resized = bufferable.resize_buffer();
+ mapped_address = reinterpret_cast<char *>(bufferable.buffer->map(WRITE_ONLY));
+}
+
+Bufferable::AsyncUpdater::~AsyncUpdater()
+{
+ bufferable.buffer->unmap();
+}
+
+void Bufferable::AsyncUpdater::upload_data()