dx_video_render.h

这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数就可以编译该代码.

/*
//
//                  INTEL CORPORATION PROPRIETARY INFORMATION
//     This software is supplied under the terms of a license agreement or
//     nondisclosure agreement with Intel Corporation and may not be copied
//     or disclosed except in accordance with the terms of that agreement.
//       Copyright(c) 2003-2005 Intel Corporation. All Rights Reserved.
//
*/

#ifndef ___DX_VIDEO_RENDER_H___
#define ___DX_VIDEO_RENDER_H___

#include "umc_defs.h"

#if defined(UMC_ENABLE_DX_VIDEO_RENDER)

#include <tchar.h>
#include <ddraw.h>
#include "vm_semaphore.h"
#include "base_video_render.h"

namespace UMC
{

class DXVideoRenderParams: public VideoRenderParams
{
    DYNAMIC_CAST_DECL(DXVideoRenderParams, VideoRenderParams)

public:
    // Default constructor
    DXVideoRenderParams();

    HWND m_hWnd;
    COLORREF m_ColorKey;
};

class DXVideoRender: public BaseVideoRender
{
public:
    // Default constructor
    DXVideoRender();
    // Destructor
    virtual ~DXVideoRender();

    // Initialize the render, return false if failed, call Close anyway
    virtual Status Init(MediaReceiverParams* pInit);

    //  Temporary stub, will be removed in future
    virtual Status Init(VideoRenderParams& rInit)
    {   return Init(&rInit); }

    // Rendering the current frame
    virtual Status RenderFrame();

    // Show the last rendered frame
    virtual Status ShowLastFrame();

    // Set/Reset full screen playback
    virtual Status SetFullScreen(ModuleContext& rContext, bool full);

    // Terminate the render
    virtual Status Close();

    // Hide surface
    virtual void HideSurface();

    static const DDPIXELFORMAT DXVideoRender::g_overlay_formats[];

protected:

    virtual int LockSurface( unsigned char** vidmem);
    virtual int UnlockSurface( unsigned char** vidmem);
    Status GetOverlayFormat(ColorFormat Format,
                            DDPIXELFORMAT& rOverlayFormat);
    Status InitDDObjs();

    IDirectDraw*        m_DDrawObj;
    IDirectDrawSurface* m_primary, *m_front;
    DDSURFACEDESC       m_ddsd;
    sCaps               m_hd_caps;
    HWND                m_hWnd;
};

} // namespace UMC

#endif // defined(UMC_ENABLE_DX_VIDEO_RENDER)

#endif // ___DX_VIDEO_RENDER_H___