147 lines
4.3 KiB
C
147 lines
4.3 KiB
C
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//==========================================================================;
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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// PURPOSE.
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//
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// Copyright (c) 1997 Microsoft Corporation. All Rights Reserved.
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//
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//
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// History:
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// 22-Aug-97 TKB Created Initial Interface Version
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//
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//==========================================================================;
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#ifndef __IKS_H
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#define __IKS_H
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#include <ks.h>
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#include <ksmedia.h>
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#include <windows.h>
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#include <winioctl.h>
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#include <tchar.h>
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#if !defined(FILE_DEVICE_KS)
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// This comes from <wdm.h> but is not easily included(Been there, done that)
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#define FILE_DEVICE_KS 0x000002F
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#endif
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//////////////////////////////////////////////////////////////
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// Force the correct library to be included.
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//////////////////////////////////////////////////////////////
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#ifdef _DEBUG
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#pragma comment(lib, "icodecd.lib")
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#else
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#pragma comment(lib, "icodec.lib")
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#endif
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//////////////////////////////////////////////////////////////
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// Global Types
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//////////////////////////////////////////////////////////////
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typedef GUID * LPGUID;
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typedef const GUID *LPCGUID;
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//////////////////////////////////////////////////////////////
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// IKSDriver:: Kernel Mode Streaming Driver Interface
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//////////////////////////////////////////////////////////////
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class IKSDriver
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{
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// Usable public interfaces
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public:
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IKSDriver(LPCGUID lpCategory, LPCSTR lpszFriendlyName);
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~IKSDriver();
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BOOL Ioctl(ULONG dwControlCode, LPBYTE pInput, ULONG nInput,
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LPBYTE pOutput, ULONG nOutput,
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DWORD *nReturned, LPOVERLAPPED lpOS=NULL );
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BOOL IsValid() { return m_lpszDriver && m_hKSDriver; }
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HANDLE m_hKSDriver;
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// Helper functions and internal data
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protected:
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LPWSTR GetSymbolicName(LPCGUID lpCategory, LPCSTR lpszFriendlyName);
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BOOL OpenDriver(DWORD dwAccess, DWORD dwFlags);
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BOOL CloseDriver();
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LPWSTR m_lpszDriver;
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};
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//////////////////////////////////////////////////////////////
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// IKSPin:: Kernel Mode Streaming Pin Interface
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//////////////////////////////////////////////////////////////
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class IKSPin
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{
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// Usable public interfaces
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public:
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IKSPin(IKSDriver &driver, int nPin, PKSDATARANGE pKSDataRange );
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~IKSPin();
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BOOL Ioctl(ULONG dwControlCode, void *pInput, ULONG nInput,
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void *pOutput, ULONG nOutput,
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ULONG *nReturned, LPOVERLAPPED lpOS=NULL );
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BOOL Run(); // Automatically called by the constructors
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BOOL Stop(); // Automatically called by the destructors
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BOOL IsRunning() { return m_bRunning; }
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int ReadData( LPBYTE lpBuffer, int nBytes, DWORD *lpcbReturned, LPOVERLAPPED lpOS );
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int GetOverlappedResult( LPOVERLAPPED lpOS, LPDWORD lpdwTransferred = NULL, BOOL bWait=TRUE );
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BOOL IsValid() { return m_IKSDriver && m_nPin>=0 && m_hKSPin /*&& m_bRunning*/; }
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HANDLE m_hKSPin;
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// Helper functions and internal data
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protected:
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BOOL OpenPin(PKSDATARANGE pKSDataRange);
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BOOL ClosePin();
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BOOL GetRunState( PKSSTATE pKSState );
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BOOL SetRunState( KSSTATE KSState );
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IKSDriver *m_IKSDriver;
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LONG m_nPin;
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BOOL m_bRunning;
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};
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//////////////////////////////////////////////////////////////
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// IKSProperty:: Kernel Mode Streaming Property Interface
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//////////////////////////////////////////////////////////////
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class IKSProperty
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{
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// Usable public interfaces
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public:
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IKSProperty(IKSDriver &pin, LPCGUID Set, ULONG Id, ULONG Size);
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IKSProperty(IKSPin &pin, LPCGUID Set, ULONG Id, ULONG Size);
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~IKSProperty();
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BOOL SetValue(void *nValue);
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BOOL GetValue(void *nValue);
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BOOL IsValid() { return (m_IKSPin || m_IKSDriver) && m_Id && m_hKSProperty; }
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HANDLE m_hKSProperty;
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// Helper functions and internal data
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protected:
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BOOL OpenProperty();
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BOOL CloseProperty();
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IKSDriver *m_IKSDriver;
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IKSPin *m_IKSPin;
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GUID m_Set;
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ULONG m_Id;
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ULONG m_Size;
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};
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#endif
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