decvport.h

来自「winddk src目录下的WDM源码压缩!」· C头文件 代码 · 共 73 行

#pragma once

//==========================================================================;
//
//  CDecoderVideoPort - Video Port interface definitions
//
//      $Date:   14 Oct 1998 15:11:14  $
//  $Revision:   1.1  $
//    $Author:   Tashjian  $
//
// $Copyright:  (c) 1997 - 1998  ATI Technologies Inc.  All Rights Reserved.  $
//
//==========================================================================;


#include "i2script.h"
#include "aticonfg.h"


#define DD_OK 0


class CWDMVideoPortStream;

class CDecoderVideoPort
{
public:
    CDecoderVideoPort(PDEVICE_OBJECT pDeviceObject);

// Attributes   
private:
    PDEVICE_OBJECT          m_pDeviceObject;    

    CATIHwConfiguration *   m_pCATIConfig;

    ULONG                   m_ring3VideoPortHandle;
    ULONG_PTR               m_ring3DirectDrawHandle;

    HANDLE                  m_ring0VideoPortHandle;
    HANDLE                  m_ring0DirectDrawHandle;

    BOOL GetRing0VideoPortHandle();
    BOOL GetRing0DirectDrawHandle();
    
    // Implementation
public:
    void Open();
    void Close();

    BOOL RegisterForDirectDrawEvents( CWDMVideoPortStream* pStream);
    BOOL UnregisterForDirectDrawEvents( CWDMVideoPortStream* pStream);

    BOOL ReleaseRing0VideoPortHandle();
    BOOL ReleaseRing0DirectDrawHandle();        

    BOOL ConfigVideoPortHandle(ULONG info);
    BOOL ConfigDirectDrawHandle(ULONG_PTR info);

    HANDLE GetVideoPortHandle()     { return m_ring0VideoPortHandle; }
    HANDLE GetDirectDrawHandle()    { return m_ring0DirectDrawHandle; }

    void CloseDirectDraw() {
                m_ring0DirectDrawHandle = 0;
                m_ring3DirectDrawHandle = 0;
        }

    void CloseVideoPort()  {
                m_ring0VideoPortHandle = 0;
                m_ring3VideoPortHandle = -1;
        }
};