first commit

include/engine/gpu/gpu_vbo.h

@@ -0,0 +1,78 @@
+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+------------------------------------------------------------------------------*/
+
+
+#ifndef	__GPUVBO__
+#define __GPUVBO__
+
+
+		#include "memory/memory.h"
+		#include "alloc/ialloc.h"
+
+
+namespace GS {
+	namespace GPU {
+		class Renderer;
+
+/*!
+	@short	GPU data buffer object.
+*/
+struct	VBO
+{
+		NPLACEMENT_NEW(Renderer)
+
+enum	Usage
+{
+	Static		=	0,
+	Dynamic
+};
+enum	Type
+{
+	Index		=	0,
+	Vertex
+};
+
+		Renderer		&renderer;
+
+		/// Get VBO size.
+virtual	size_t			GetSize() const = 0;
+
+		/// Map VBO to main memory.
+virtual	void			*Map() = 0;
+		/// Unmap VBO.
+virtual	void			Unmap() = 0;
+
+		/// Update VBO content.
+virtual	bool			Update(const void *, size_t start = 0, size_t size = 0) = 0;
+
+		/// Create VBO.
+virtual	bool			Create(size_t size, Type = Vertex, Usage = Static) = 0;
+		/// Create VBO, map and set data.
+virtual	bool			Create(const void *data, size_t size, Type type = Vertex, Usage usage = Static)
+		{
+			if	(!Create(size, type, usage))
+				return false;
+
+			void *p = Map();
+			if	(!p)
+				return false;
+
+			Memory::Copy(p, data, size);
+			Unmap();
+			return true;
+		}
+
+		/// Free VBO.
+virtual	void			Free() = 0;
+
+		VBO(Renderer &r) : renderer(r) {}
+virtual	~VBO() {}
+};
+
+	} // GPU
+} // GS
+
+
+#endif	// __GPUVBO__