d3dutil.cpp

传奇3客户端源代码

    mat._23 =  sinf( fRads );
    mat._32 = -sinf( fRads );
    mat._33 =  cosf( fRads );
}




//-----------------------------------------------------------------------------
// Name: D3DUtil_SetRotateYMatrix()
// Desc: Create Rotation matrix about Y axis
//-----------------------------------------------------------------------------
VOID D3DUtil_SetRotateYMatrix( D3DMATRIX& mat, FLOAT fRads )
{
    D3DUtil_SetIdentityMatrix( mat );
    mat._11 =  cosf( fRads );
    mat._13 = -sinf( fRads );
    mat._31 =  sinf( fRads );
    mat._33 =  cosf( fRads );
}




//-----------------------------------------------------------------------------
// Name: D3DUtil_SetRotateZMatrix()
// Desc: Create Rotation matrix about Z axis
//-----------------------------------------------------------------------------
VOID D3DUtil_SetRotateZMatrix( D3DMATRIX& mat, FLOAT fRads )
{
    D3DUtil_SetIdentityMatrix( mat );
    mat._11  =  cosf( fRads );
    mat._12  =  sinf( fRads );
    mat._21  = -sinf( fRads );
    mat._22  =  cosf( fRads );
}




//-----------------------------------------------------------------------------
// Name: D3DUtil_SetRotationMatrix
// Desc: Create a Rotation matrix about vector direction
//-----------------------------------------------------------------------------
VOID D3DUtil_SetRotationMatrix( D3DMATRIX& mat, D3DVECTOR& vDir, FLOAT fRads )
{
    FLOAT     fCos = cosf( fRads );
    FLOAT     fSin = sinf( fRads );
    D3DVECTOR v    = Normalize( vDir );

    mat._11 = ( v.x * v.x ) * ( 1.0f - fCos ) + fCos;
    mat._12 = ( v.x * v.y ) * ( 1.0f - fCos ) - (v.z * fSin);
    mat._13 = ( v.x * v.z ) * ( 1.0f - fCos ) + (v.y * fSin);

    mat._21 = ( v.y * v.x ) * ( 1.0f - fCos ) + (v.z * fSin);
    mat._22 = ( v.y * v.y ) * ( 1.0f - fCos ) + fCos ;
    mat._23 = ( v.y * v.z ) * ( 1.0f - fCos ) - (v.x * fSin);

    mat._31 = ( v.z * v.x ) * ( 1.0f - fCos ) - (v.y * fSin);
    mat._32 = ( v.z * v.y ) * ( 1.0f - fCos ) + (v.x * fSin);
    mat._33 = ( v.z * v.z ) * ( 1.0f - fCos ) + fCos;

    mat._14 = mat._24 = mat._34 = 0.0f;
    mat._41 = mat._42 = mat._43 = 0.0f;
    mat._44 = 1.0f;
}




//-----------------------------------------------------------------------------
// Name: _DbgOut()
// Desc: Outputs a message to the debug stream
//-----------------------------------------------------------------------------
HRESULT _DbgOut( TCHAR* strFile, DWORD dwLine, HRESULT hr, TCHAR* strMsg )
{
    TCHAR buffer[256];
    wsprintf( buffer, _T("%s(%ld): "), strFile, dwLine );
    OutputDebugString( buffer );
    OutputDebugString( strMsg );

    if( hr )
    {
        wsprintf( buffer, _T("(hr=%08lx)\n"), hr );
        OutputDebugString( buffer );
    }

    OutputDebugString( _T("\n") );

    return hr;
}











/******************************************************************************************************************

	窃荐疙 : SetBlendRenderState()

	累己磊 : 
	累己老 : 

	格利   : 坊歹傅胶抛捞飘甫 悸泼茄促.
	涝仿   : LPDIRECT3DDEVICE7 pd3dDevice
	         BYTE bBlendFlag
	         D3DMATERIAL7 mtrlGetMtrl
	免仿   : void 

	[老磊][荐沥磊] : 荐沥郴侩

*******************************************************************************************************************/
void SetBlendRenderState(LPDIRECT3DDEVICE7 pd3dDevice, BYTE bBlendFlag, D3DMATERIAL7 mtrlGetMtrl)
{
	pd3dDevice->SetRenderState(D3DRENDERSTATE_ALPHABLENDENABLE, TRUE);
	pd3dDevice->SetRenderState(D3DRENDERSTATE_COLORKEYENABLE, TRUE);

	switch ( bBlendFlag ) 
	{
	case 0:
		if ( mtrlGetMtrl.diffuse.a < 1.0f || mtrlGetMtrl.emissive.a < 1.0f ) 
		{
			pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
			pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAOP,   D3DTOP_MODULATE);
			pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE);

			pd3dDevice->SetRenderState(D3DRENDERSTATE_SRCBLEND, D3DBLEND_ONE);
			pd3dDevice->SetRenderState(D3DRENDERSTATE_DESTBLEND, D3DBLEND_INVSRCALPHA);
		}
		else
		{
			pd3dDevice->SetRenderState(D3DRENDERSTATE_DESTBLEND, D3DBLEND_INVSRCALPHA);
		}
		break;
	case 1:
		pd3dDevice->SetRenderState(D3DRENDERSTATE_DESTBLEND, D3DBLEND_ONE);
		break;
	case 2:
		pd3dDevice->SetRenderState(D3DRENDERSTATE_DESTBLEND, D3DBLEND_INVSRCCOLOR);
		break;
	case 3:
		if( mtrlGetMtrl.diffuse.a < 1.0f || mtrlGetMtrl.emissive.a < 1.0f )
		{
			pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE | D3DTA_COMPLEMENT);
			pd3dDevice->SetTextureStageState(0, D3DTSS_COLOROP,   D3DTOP_MODULATE);
			pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_DIFFUSE);
			pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
			pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAOP,   D3DTOP_MODULATE);
			pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE);

			pd3dDevice->SetRenderState(D3DRENDERSTATE_SRCBLEND, D3DBLEND_ONE);
			pd3dDevice->SetRenderState(D3DRENDERSTATE_DESTBLEND, D3DBLEND_INVSRCALPHA);
		} 
		else 
		{
			pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE | D3DTA_COMPLEMENT);
			pd3dDevice->SetTextureStageState(0, D3DTSS_COLOROP,   D3DTOP_MODULATE);
			pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_DIFFUSE);
			pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
			pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAOP,   D3DTOP_MODULATE);
			pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE);

			pd3dDevice->SetRenderState(D3DRENDERSTATE_SRCBLEND, D3DBLEND_INVSRCALPHA);
			pd3dDevice->SetRenderState(D3DRENDERSTATE_DESTBLEND, D3DBLEND_ZERO);
		}
		break;
	case 4:
		pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE | D3DTA_COMPLEMENT);
		pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE|D3DTA_COMPLEMENT);
		pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAOP,   D3DTOP_SELECTARG1);
		pd3dDevice->SetRenderState(D3DRENDERSTATE_DESTBLEND, D3DBLEND_INVDESTCOLOR);
		break;
	case 5:
		pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE|D3DTA_COMPLEMENT);
		pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAOP,   D3DTOP_SELECTARG1);
		pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE | D3DTA_COMPLEMENT);
		pd3dDevice->SetRenderState(D3DRENDERSTATE_DESTBLEND, D3DBLEND_INVDESTCOLOR);
		break;
	}
}



/******************************************************************************************************************

	窃荐疙 : ResetBlendenderState()

	累己磊 : 
	累己老 : 

	格利   : 坊歹傅胶抛捞飘甫 扁夯惑怕肺 汗备茄促.
	涝仿   : LPDIRECT3DDEVICE7 pd3dDevice
	免仿   : void 

	[老磊][荐沥磊] : 荐沥郴侩

*******************************************************************************************************************/
void ResetBlendenderState(LPDIRECT3DDEVICE7 pd3dDevice)
{
	pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
	pd3dDevice->SetTextureStageState(0, D3DTSS_COLOROP,   D3DTOP_MODULATE);
	pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_DIFFUSE);
	pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
	pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAOP,   D3DTOP_SELECTARG1);
	pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE);

	pd3dDevice->SetRenderState(D3DRENDERSTATE_ALPHABLENDENABLE, FALSE);
	pd3dDevice->SetRenderState(D3DRENDERSTATE_COLORKEYENABLE, FALSE);
	pd3dDevice->SetRenderState(D3DRENDERSTATE_SRCBLEND , D3DBLEND_ONE);
	pd3dDevice->SetRenderState(D3DRENDERSTATE_DESTBLEND, D3DBLEND_ZERO);
}