X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fbufferable.h;h=66a6db1871952a2a7e7940bd5f9f931cd88eb808;hp=d7d7e45fe2183fa606395bda73f184a1f3ace282;hb=b59c47a7ed2ed3f69a3349a2d76ef02891f0c685;hpb=98cc25ffe956bc162c053c96df659ba40dfe2d6e

diff --git a/source/bufferable.h b/source/bufferable.h
index d7d7e45f..66a6db18 100644
--- a/source/bufferable.h
+++ b/source/bufferable.h
@@ -14,6 +14,21 @@ uploading fresh data to the buffer.
 */
 class Bufferable
 {
+public:
+	class AsyncUpdater
+	{
+	private:
+		const Bufferable &bufferable;
+		char *mapped_address;
+		bool buffer_resized;
+
+	public:
+		AsyncUpdater(const Bufferable &);
+		~AsyncUpdater();
+
+		void upload_data();
+	};
+
 private:
 	Buffer *buffer;
 	unsigned offset;
@@ -22,7 +37,6 @@ private:
 protected:
 	mutable bool dirty;
 
-protected:
 	Bufferable();
 public:
 	virtual ~Bufferable();
@@ -34,12 +48,18 @@ public:
 	/** Uploads new data into the buffer if necessary. */
 	void refresh() const { if(dirty) update_buffer(); }
 
+	AsyncUpdater *refresh_async() const;
+
 private:
 	void unlink_from_buffer();
 
+public:
+	/** Returns the buffer in which the data is stored. */
+	const Buffer *get_buffer() const { return buffer; }
+
 protected:
 	/** Returns the buffer in which the data is stored. */
-	Buffer *get_buffer() const { return buffer; }
+	Buffer *get_mutable_buffer() const { return buffer; }
 
 	/** Returns the amount of data to be stored in the buffer, in bytes. */
 	virtual unsigned get_data_size() const = 0;
@@ -69,8 +89,9 @@ protected:
 	/** Resizes the buffer if necessary and calls upload_data(). */
 	void update_buffer() const;
 
-	/** Uploads data to the buffer. */
-	virtual void upload_data() const;
+	/** Uploads data to the buffer.  Receives pointer to mapped buffer memory as
+	parameter.  If null, buffer interface should be used instead. */
+	virtual void upload_data(char *) const;
 };
 
 } // namespace GL