///////////////////////////////////////////////////////////////////////////////
//
//      ##  ######
//       ######  ###
//  ## ###############        Shark 3D Engine (www.shark3d.com)
//   ########## # # #
//    ########                Copyright (c) 1996-2006 Spinor GmbH.
//   ######### # # #          All rights reserved.
//  ##   ##########
//      ##
//
///////////////////////////////////////////////////////////////////////////////

//@cpp
#ifndef S3D_DRV_D3D9_PARAMBLK_H
#define S3D_DRV_D3D9_PARAMBLK_H

#include "drv_d3d9_types.h"
#include "drv_d3d9_settings.h"
#include "drv_d3d9_tex.h"
#include "sys/core/sys_util.h"

///////////////////////////////////////////////////////////////////////////////

//@
struct s3d_CDrvD3d9ParamBlkState
{
    enum CDirty
    {
        Dirty_MatProj       = (1 << 0),
        Dirty_MatView       = (1 << 1),
        Dirty_MatGen        = (1 << 2),
        Dirty_Light         = (1 << 3),
        Dirty_Mtl           = (1 << 4),
        Dirty_Fog           = (1 << 5),
    };
    int m_DirtyMask;

    void Invalidate();
    void Done();
};

///////////////////////////////////////////////////////////////////////////////

//@
struct s3d_CDrvD3d9ParamBlk
{
    D3DXMATRIXA16 m_MatProj;
    D3DXMATRIXA16 m_MatView;
    D3DXMATRIXA16 m_MatGenArray[S3D_DRV_D3D9_MAX_ATTR_CNT];
    
    s3d_CSysIntps m_CurLightCnt;
    D3DLIGHT9 m_LightArray[S3D_DRV_D3D9_MAX_LIGHT_CNT];

    D3DMATERIAL9 m_Mtl;
    bool m_UseConstColorAlpha;
    D3DCOLORVALUE m_ColorAlphaVal;
    
    // Color:= x,y,z
    // Density:= w
    D3DXVECTOR4 m_FogColDensity;

    // Highest sampler with texture bound to.
    // All entries of m_CurSampTexArray with index < m_SampMaxUsedCnt 
    // are guaranteed to be NOT 0 and with index >= m_SampMaxUsedCnt are 0.
    int m_SampMaxUsedCnt;
    s3d_CDrvD3d9TexObjBasePtr m_SampTexArray[S3D_DRV_D3D9_MAX_SAMPLER_CNT];
    
    void Reset();
};


///////////////////////////////////////////////////////////////////////////////
// Definitions

S3D_SYS_INLINE 
void s3d_CDrvD3d9ParamBlkState::Invalidate()
{
    m_DirtyMask = -1;
}

S3D_SYS_INLINE 
void s3d_CDrvD3d9ParamBlkState::Done()
{
    m_DirtyMask = 0;
}

///////////////////////////////////////////////////////////////////////////////

S3D_SYS_INLINE 
void s3d_CDrvD3d9ParamBlk::Reset()
{
    D3DXMatrixIdentity(&m_MatProj);
    D3DXMatrixIdentity(&m_MatView);
    s3d_CSysIntps iAttr;
    for(iAttr = 0; iAttr < S3D_SYS_ARRAYCNTS(m_MatGenArray); iAttr++)
        D3DXMatrixIdentity(&m_MatGenArray[iAttr]);

    m_CurLightCnt = 0;
    s3d_SysMemset(&m_LightArray, 0, S3D_SYS_SIZEOFS(m_LightArray));

    D3DCOLORVALUE Black = D3DXCOLOR(DWORD(0));
    m_Mtl.Ambient = Black;
    m_Mtl.Diffuse = Black;
    m_Mtl.Specular = Black;
    m_Mtl.Emissive = Black;
    m_Mtl.Power = 0.f;

    m_UseConstColorAlpha = false;
    m_ColorAlphaVal = Black;

    m_FogColDensity = D3DXVECTOR4(0.f, 0.f, 0.f, 0.f);

    s3d_CSysIntps iSamp;
    for(iSamp = 0; iSamp < S3D_SYS_ARRAYCNTS(m_SampTexArray); iSamp++)
        m_SampTexArray[iSamp] = 0;
}

///////////////////////////////////////////////////////////////////////////////

#endif