}
}
+ dirty = true;
update_offset();
}
+Bufferable::AsyncUpdater *Bufferable::refresh_async() const
+{
+ return dirty ? new AsyncUpdater(*this) : 0;
+}
+
void Bufferable::unlink_from_buffer()
{
if(prev_in_buffer)
the buffer is actually used. */
}
-void Bufferable::update_buffer() const
+bool Bufferable::resize_buffer() const
{
- BindRestore bind(buffer, buffer->get_type());
if(offset+get_data_size()>=buffer->get_size())
{
const Bufferable *last = this;
if(total_size>buffer->get_size())
{
buffer->data(total_size, 0);
- /* Resizing the buffer invalidates its contents. Non-dirty data may
- be in use, so reupload it. */
- for(const Bufferable *b=last; b; b=b->prev_in_buffer)
- if(!b->dirty)
- b->upload_data();
+ return true;
}
}
- upload_data();
+ return false;
+}
+
+void Bufferable::update_buffer() const
+{
+ BindRestore bind(buffer, buffer->get_type());
+ if(resize_buffer())
+ {
+ /* Resizing the buffer invalidates its contents. Non-dirty data may
+ be in use, so reupload it. */
+ for(const Bufferable *b=prev_in_buffer; b; b=b->prev_in_buffer)
+ if(!b->dirty)
+ b->upload_data(0);
+ for(const Bufferable *b=next_in_buffer; b; b=b->next_in_buffer)
+ if(!b->dirty)
+ b->upload_data(0);
+ }
+
+ upload_data(0);
dirty = false;
}
+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()
+{
+ bufferable.upload_data(mapped_address+bufferable.offset);
+ // Update all bufferables in the same buffer at once
+ for(const Bufferable *b=bufferable.prev_in_buffer; b; b=b->prev_in_buffer)
+ if(b->dirty || buffer_resized)
+ {
+ b->upload_data(mapped_address+b->offset);
+ b->dirty = false;
+ }
+ for(const Bufferable *b=bufferable.next_in_buffer; b; b=b->next_in_buffer)
+ if(b->dirty || buffer_resized)
+ {
+ b->upload_data(mapped_address+b->offset);
+ b->dirty = false;
+ }
+}
+
} // namespace GL
} // namespace Msp