#pragma once

struct SVertexBar
{
		FLOAT	x, y, z;
		DWORD   dwColor;
};

const DWORD c_dwFVFBar= D3DFVF_XYZ|D3DFVF_DIFFUSE;

SVertexBar g_VertBar[]=
{
	{ -1.0f, -1.0f, 5.0f,					0xff000000 },
	{ -1.0f, 1.0f, 5.0f,					0xff000000  },
	{ 1.0f, -1.0f, 5.0f,					0xff000000 },
	{ 1.0f, 1.0f,5.0f,						0xff000000 },
};

void RenderBars()
{
	g_d3d_device->SetRenderState( D3DRS_LIGHTING,       FALSE );
	g_d3d_device->SetRenderState( D3DRS_ZENABLE,		FALSE );

	g_d3d_device->SetRenderState( D3DRS_ALPHATESTENABLE, FALSE );
	g_d3d_device->SetRenderState( D3DRS_ALPHABLENDENABLE, FALSE );

	g_d3d_device->SetRenderState( D3DRS_CULLMODE,  D3DCULL_NONE );

	g_d3d_device->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_DIFFUSE );
	g_d3d_device->SetTextureStageState( 0, D3DTSS_COLOROP, D3DTOP_SELECTARG1 );
	g_d3d_device->SetTextureStageState( 0, D3DTSS_COLORARG2, D3DTA_DIFFUSE );

	g_d3d_device->SetTextureStageState( 0, D3DTSS_ALPHAOP, D3DTOP_SELECTARG1 );
	g_d3d_device->SetTextureStageState( 0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE );

	D3DXMATRIX mat;
	D3DXMatrixOrthoLH(          
		&mat,
		(float)c_iScreenSizeX,
		-(float)c_iScreenSizeY,
		1.0f,
		8.0f );

	g_d3d_device->SetTransform( D3DTS_PROJECTION, &mat );

	D3DXMatrixIdentity( &mat );
	g_d3d_device->SetTransform( D3DTS_VIEW, &mat );
	g_d3d_device->SetTransform( D3DTS_WORLD, &mat );
	

	float fBarHeight= (float)( c_iScreenSizeY - c_iRealScreenY ) * 0.5f;
	for( int i= -1; i <= 1; i+= 2 )
	{
		g_VertBar[ 0 ].x= -(float)c_iScreenSizeX * 0.5f - 10.0f;
		g_VertBar[ 0 ].y= (float)i * ( (float)c_iScreenSizeY * 0.5f + 10.0f );
		g_VertBar[ 1 ].x= -(float)c_iScreenSizeX * 0.5f - 10.0f;
		g_VertBar[ 1 ].y= (float)i * ( (float)c_iScreenSizeY * 0.5f - fBarHeight );
		g_VertBar[ 2 ].x= (float)c_iScreenSizeX * 0.5f + 10.0f;
		g_VertBar[ 2 ].y= (float)i * ( (float)c_iScreenSizeY * 0.5f + 10.0f );
		g_VertBar[ 3 ].x= (float)c_iScreenSizeX * 0.5f + 10.0f;
		g_VertBar[ 3 ].y= (float)i * ( (float)c_iScreenSizeY * 0.5f - fBarHeight );

		g_d3d_device->SetFVF( c_dwFVFBar );
		g_d3d_device->DrawPrimitiveUP(
			D3DPT_TRIANGLESTRIP,
			2,
			g_VertBar,
			sizeof( SVertexBar ) 
			);
	}

}