X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fcore%2Fbufferable.cpp;fp=source%2Fcore%2Fbufferable.cpp;h=502c270c8f6bad09861841847e1dc71d70d006c7;hb=5fa0901a84cdba32f491a4e3997916f2fbb30863;hp=fcedc5becd666efb16ef780a73c4bc8fa24fe5c5;hpb=97818e67b2543a6075c13e6bf22c296757b975e5;p=libs%2Fgl.git

diff --git a/source/core/bufferable.cpp b/source/core/bufferable.cpp
index fcedc5be..502c270c 100644
--- a/source/core/bufferable.cpp
+++ b/source/core/bufferable.cpp
@@ -70,11 +70,20 @@ void Bufferable::change_buffer(Buffer *buf)
 	}
 }
 
-size_t Bufferable::get_required_buffer_size() const
+size_t Bufferable::get_required_buffer_size(bool align) const
 {
 	const Bufferable *last = this;
 	for(; last->next_in_buffer; last=last->next_in_buffer) ;
-	return last->offset+last->get_data_size();
+	size_t size = last->offset+last->get_data_size();
+	if(align)
+	{
+		const Bufferable *first = this;
+		for(; first->prev_in_buffer; first=first->prev_in_buffer) ;
+		size_t alignment = first->get_alignment();
+		size += alignment-1;
+		size -= size%alignment;
+	}
+	return size;
 }
 
 void Bufferable::unlink_from_buffer()