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/*  Project nGenEx
	Destroyer Studios LLC
	Copyright © 1997-2004. All Rights Reserved.

	SUBSYSTEM:    nGenEx.lib
	FILE:         VideoDX9VertexBuffer.h
	AUTHOR:       John DiCamillo


	OVERVIEW
	========
	Vertex and Index Buffer classes for DirectX 9 
*/

#ifndef VideoDX9VertexBuffer_h
#define VideoDX9VertexBuffer_h

#include "VideoDX9.h"

// +--------------------------------------------------------------------+

class VideoDX9VertexBuffer
{
public:
	VideoDX9VertexBuffer(VideoDX9*   dx9,
	UINT        num_verts,
	UINT        vert_size,
	DWORD       format,
	DWORD       usage);
	~VideoDX9VertexBuffer();

	BYTE*    Lock(UINT count);
	void     Unlock();
	bool     Select(int stream=0);

	UINT     GetNumVerts() const;
	UINT     GetVertSize() const;
	UINT     GetNextVert() const;

private:
	VideoDX9*               video;
	IDirect3DVertexBuffer9* vertex_buffer;

	UINT     num_verts;
	UINT     num_locked;
	UINT     vert_size;
	UINT     next_vert;
	bool     is_dynamic;
};

// +--------------------------------------------------------------------+

class VideoDX9IndexBuffer
{
public:
	VideoDX9IndexBuffer(VideoDX9*    dx9,
	UINT        num_indices,
	DWORD       usage);
	~VideoDX9IndexBuffer();

	WORD*    Lock(UINT count);
	void     Unlock();
	bool     Select();

	UINT     GetNumIndices() const;
	UINT     GetNextIndex()  const;

private:
	VideoDX9*               video;
	IDirect3DIndexBuffer9*  index_buffer;

	UINT     num_indices;
	UINT     num_locked;
	UINT     next_index;
	bool     is_dynamic;
};

#endif VideoDX9VertexBuffer_h