/*  Starshatter: The Open Source Project
    Copyright (c) 2021-2024, Starshatter: The Open Source Project Contributors
    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
    Copyright (c) 1997-2006, Destroyer Studios LLC.

    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