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

#include "drv_d3d9_state.h"
#include "drv_d3d9_util.h"
#include "drv_d3d9_mmx.h"
#include "sys/core/sys_float.h"

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

s3d_CDrvD3d9StateMgr::s3d_CDrvD3d9StateMgr()
{
    m_Env = 0;
    Invalidate();
}

void s3d_CDrvD3d9StateMgr::Invalidate()
{
    m_StateBlk.m_CullMode = -1;
    m_StateBlk.m_DepthTestMode = -1;
    m_StateBlk.m_DepthWrite = FALSE;
    m_StateBlk.m_DepthBias = -1;
    m_StateBlk.m_SlopeScaleDepthBias = -1;
    m_StateBlk.m_PaintMode = -1;

    m_StateBlk.m_AlphaBlendEnabled = -1;
    m_StateBlk.m_SrcBlend = -1;
    m_StateBlk.m_DestBlend = -1;
    m_StateBlk.m_BlendOp = -1;
    m_StateBlk.m_SeparateAlphaBlendEnabled = -1;
    m_StateBlk.m_SrcBlendAlpha = -1;
    m_StateBlk.m_DestBlendAlpha = -1;
    m_StateBlk.m_BlendOpAlpha = -1;

    m_StateBlk.m_AlphaTestEnabled = -1;
    m_StateBlk.m_AlphaTestMode = -1;
    m_StateBlk.m_AlphaTestRef = -1;

    m_StateBlk.m_ColorWriteEnabled = 0;

    m_StateBlk.m_StencilEnabled = -1;
    m_StateBlk.m_StencilTestModeFront = -1;
    m_StateBlk.m_StencilTestRef = -1;
    m_StateBlk.m_StencilTestMask = -1;
    m_StateBlk.m_StencilWriteMask = -1;
    m_StateBlk.m_StencilOpFailFront = -1;
    m_StateBlk.m_StencilOpDepthFailFront = -1;
    m_StateBlk.m_StencilOpDepthPassFront = -1;
    m_StateBlk.m_StencilTwoSidedEnabled = -1;
    m_StateBlk.m_StencilTestModeBack = -1;
    m_StateBlk.m_StencilOpFailBack = -1;
    m_StateBlk.m_StencilOpDepthFailBack = -1;
    m_StateBlk.m_StencilOpDepthPassBack = -1;
    m_StateBlk.m_FogDensity = -1.f;
    m_StateBlk.m_FogColor = -1;
}

void s3d_CDrvD3d9StateMgr::Apply(
        s3d_CDrvD3d9StateBlk_cr StateBlk)
{
#ifdef S3D_DRV_D3D9_STATEMGR_APPLYBLOCK
    SetCullMode(StateBlk.m_CullMode);
    
    SetDepthTestMode(StateBlk.m_DepthTestMode);
    SetDepthWrite(StateBlk.m_DepthWrite);
    
    SetPaintMode(StateBlk.m_PaintMode);

    SetAlphaBlendEnabled(StateBlk.m_AlphaBlendEnabled);
    SetSrcBlend(StateBlk.m_SrcBlend);
    SetDestBlend(StateBlk.m_DestBlend);
    SetBlendOp(StateBlk.m_BlendOp);
    SetSeparateAlphaBlendEnabled(StateBlk.m_SeparateAlphaBlendEnabled);
    SetSrcBlendAlpha(StateBlk.m_SrcBlendAlpha);
    SetDestBlendAlpha(StateBlk.m_DestBlendAlpha);
    SetBlendOpAlpha(StateBlk.m_BlendOpAlpha);

    SetAlphaTestEnabled(StateBlk.m_AlphaTestEnabled);
    SetAlphaTestMode(StateBlk.m_AlphaTestMode);
    SetAlphaTestRef(StateBlk.m_AlphaTestRef);

    SetColorWriteEnabled(StateBlk.m_ColorWriteEnabled);

    SetDepthBias(StateBlk.m_DepthBias, m_StateBlk.m_SlopeScaleDepthBias);

    SetStencilEnabled(StateBlk.m_StencilEnabled);
    SetStencilTwoSidedEnabled(StateBlk.m_StencilTwoSidedEnabled);
    SetStencilTestModeFront(StateBlk.m_StencilTestModeFront);
    SetStencilTestModeBack(StateBlk.m_StencilTestModeBack);
    SetStencilTestRef(StateBlk.m_StencilTestRef);
    SetStencilTestMask(StateBlk.m_StencilTestMask);
    SetStencilWriteMask(StateBlk.m_StencilWriteMask);
    SetStencilOpFailFront(StateBlk.m_StencilOpFailFront);
    SetStencilOpDepthFailFront(StateBlk.m_StencilOpDepthFailFront);
    SetStencilOpDepthPassFront(StateBlk.m_StencilOpDepthPassFront);
    SetStencilOpFailBack(StateBlk.m_StencilOpFailBack);
    SetStencilOpDepthFailBack(StateBlk.m_StencilOpDepthFailBack);
    SetStencilOpDepthPassBack(StateBlk.m_StencilOpDepthPassBack);

    SetFogDensity(StateBlk.m_FogDensity);
    SetFogColor(StateBlk.m_FogColor);

#ifdef S3D_DRV_D3D9_STATEMGR_USE_MEMCPY
    //s3d_DrvD3d9MemcpyMmx16(
    //        &m_StateBlk, &StateBlk, S3D_SYS_SIZEOFS(m_StateBlk));
    memcpy(&m_StateBlk, &StateBlk, S3D_SYS_SIZEOFS(m_StateBlk));
#endif

#endif //S3D_DRV_D3D9_STATEMGR_APPLYBLOCK
}

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