dshowtextures.h

#pragma once
#include "mutex.h"
#include <streams.h>
#include <vector>

//-----------------------------------------------------------------------------
// Define GUID for Texture Renderer
// {71771540-2017-11cf-AE26-0020AFD79767}
//-----------------------------------------------------------------------------
struct __declspec(uuid("{71771540-2017-11cf-ae26-0020afd79767}")) CLSID_TextureRenderer;
//#define REGISTER_FILTERGRAPH

namespace ParaEngine
{
    using namespace std;

    class CGraphBuilder;
    class CTextureRenderer:public CBaseVideoRenderer
    {
    public:
        CTextureRenderer(LPUNKNOWN pUnk,HRESULT *phr);
        ~CTextureRenderer();

        //void SetPinConnectState(BOOL bStatus);

        //
        // the following function just override the base renderer interface. They are called in the codec thread. 
        //

        HRESULT CheckMediaType(const CMediaType *pmt); 

        HRESULT SetMediaType(const CMediaType *pmt );       
        HRESULT GetConnectedMediaType(D3DFORMAT *uiTexFmt, LONG *uiVidBpp);
        
        HRESULT DoRenderSample(IMediaSample *pMediaSample); 

        HRESULT GetDDMediaSample(IMediaSample *pSample);
#ifdef REGISTER_FILTERGRAPH
        HRESULT AddToROT(IUnknown *pUnkGraph);
        void RemoveFromROT(void);
#endif
    
    public:
        //
        // the following functions provide interface for the game thread to retrieve video data.
        //

        HRESULT lock(byte** data, int* nSize);
        HRESULT unlock();
        
        int GetWidth();
        int GetHeight();

        HRESULT CreateTexture(LPDIRECT3DTEXTURE9 *pTexture);
        
        HRESULT UpdateTexture(LPDIRECT3DTEXTURE9 pTexture);

    protected:
        D3DFORMAT m_TextureFormat;
        LONG      m_VideoBpp;

        VIDEOINFO m_viBmp;
        bool m_bUseDynamicTextures;
        LONG m_lVidWidth,m_lVidHeight,m_lVidPitch;
        bool m_bUpSideDown;
        HANDLE m_hInitDone;

        Mutex mMutex;
        vector <byte> m_textureData;
        bool m_bFrameChanged;
    };
}