296 lines
10 KiB
C
296 lines
10 KiB
C
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/*******************************************************************************
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* DXSurfB.h *
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*----------*
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* Description:
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* This is the header file for the CDXBaseSurface implementation. It is
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* used as a base class to implement read-only procedural DXSurfaces.
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*-------------------------------------------------------------------------------
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* Created By: RAL Date: 02/12/1998
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* Copyright (C) 1998 Microsoft Corporation
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* All Rights Reserved
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*
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*-------------------------------------------------------------------------------
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* Revisions:
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*
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*******************************************************************************/
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#ifndef __DXSurfB_H__
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#pragma option push -b -a8 -pc -A- /*P_O_Push*/
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#define __DXSurfB_H__
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#include "dtbase.h"
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class CDXBaseSurface;
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class CDXBaseARGBPtr;
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class ATL_NO_VTABLE CDXBaseSurface :
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public CDXBaseNTo1,
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public IDXSurface,
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public IDXSurfaceInit
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{
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/*=== ATL Setup ===*/
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public:
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BEGIN_COM_MAP(CDXBaseSurface)
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COM_INTERFACE_ENTRY(IDXSurface)
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COM_INTERFACE_ENTRY(IDXSurfaceInit)
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COM_INTERFACE_ENTRY_CHAIN(CDXBaseNTo1)
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END_COM_MAP()
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DECLARE_GET_CONTROLLING_UNKNOWN()
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/*=== Member Data ===*/
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public:
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ULONG m_Height;
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ULONG m_Width;
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DWORD m_dwStatusFlags;
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HANDLE m_hSemaphore;
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ULONG m_ulLocks;
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ULONG m_ulThreadsWaiting;
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CDXBaseARGBPtr *m_pFreePtr;
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DWORD m_dwAppData;
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CComAutoCriticalSection m_MPWorkProcCrit; // See comments in LockSurface for details
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CDXBaseSurface();
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HRESULT FinalConstruct();
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void FinalRelease();
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//
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// IDXBaseObject
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//
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STDMETHODIMP GetGenerationId(ULONG *pGenId);
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STDMETHODIMP IncrementGenerationId(BOOL bRefresh);
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STDMETHODIMP GetObjectSize(ULONG *pulze);
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//
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// Overridden methods of DXTransform
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//
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STDMETHODIMP MapBoundsIn2Out(const DXBNDS *pInBounds, ULONG ulNumInBnds,
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ULONG /*ulOutIndex*/, DXBNDS *pOutBounds );
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//
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// IDXSurfaceInit
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//
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STDMETHODIMP InitSurface(IUnknown *pDirectDraw,
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const DDSURFACEDESC * pDDSurfaceDesc,
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const GUID * pFormatId,
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const DXBNDS *pBounds,
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DWORD dwFlags);
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//
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// IDXSurface methods
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//
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STDMETHODIMP GetPixelFormat(GUID *pFormat, DXSAMPLEFORMATENUM *pSampleEnum);
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STDMETHODIMP GetBounds(DXBNDS *pBounds);
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STDMETHODIMP GetStatusFlags(DWORD * pdwStatusFlags);
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STDMETHODIMP SetStatusFlags(DWORD dwStatusFlags);
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STDMETHODIMP GetDirectDrawSurface(REFIID riid, void **ppSurface);
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STDMETHODIMP LockSurface(const DXBNDS *pBounds, ULONG ulTimeOut, DWORD dwFlags,
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REFIID riid, void **ppPointer, DWORD * pGenerationId);
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STDMETHODIMP SetAppData(DWORD dwAppData)
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{
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m_dwAppData = dwAppData;
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return S_OK;
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}
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STDMETHODIMP GetAppData(DWORD *pdwAppData)
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{
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if (DXIsBadWritePtr(pdwAppData, sizeof(*pdwAppData)))
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{
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return E_POINTER;
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}
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*pdwAppData = m_dwAppData;
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return S_OK;
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}
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//
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// These methods aren't supported by procedural surfaces...
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//
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STDMETHODIMP GetColorKey(DXSAMPLE *pColorKey)
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{
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return E_NOTIMPL;
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}
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STDMETHODIMP SetColorKey(DXSAMPLE pColorKey)
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{
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return E_NOTIMPL;
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}
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STDMETHODIMP LockSurfaceDC(const DXBNDS *pBounds, ULONG ulTimeOut, DWORD dwFlags, IDXDCLock **ppDXLock)
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{
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return E_NOTIMPL;
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}
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//
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// Surfaces should override this.
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//
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virtual ULONG OnGetObjectSize(void) { return sizeof(*this); }
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//
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// This work procedure can be overridden by the derived class to improve performance
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// or execution of the transform by directly producing data in large blocks if desired.
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//
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virtual HRESULT WorkProc(const CDXTWorkInfoNTo1 & WI, BOOL* pbContinueProcessing)
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{
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return DXBitBlt(OutputSurface(), WI.OutputBnds, this, WI.DoBnds, m_dwBltFlags, m_ulLockTimeOut);
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}
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//
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// Pick interface needs to test procedural surface.
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//
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virtual HRESULT OnSurfacePick(const CDXDBnds & OutPoint, ULONG & ulInputIndex, CDXDVec & InVec);
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//
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// Helper functions
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//
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// _EnterCritWith0PtrLocks()
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//
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// This function is similar to calling Lock() except that it will wait until there
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// are no pointers to the surface before returning. This should be used whenever you
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// are going to change the state of a surface, for example the size or some other
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// property that the read pointers rely on.
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//
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// WARNING: You must be sure that one of the following is true:
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// 1) The objects critical section has NOT been taken prior to calling this function
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// or 2) There are no pointers to the surface taken prior to calling this function.
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//
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// Case 2 is useful in nested function calls. If the outer function has already used this
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// function to enter the critical section, then it is OK to use it on the inner nested
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// function. If the object's lock is taken, but there are outstanding pointers, YOU WILL DEADLOCK!
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//
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inline void _EnterCritWith0PtrLocks(void)
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{
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while (TRUE)
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{
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Lock();
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if (m_ulLocks == 0) break;
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m_ulThreadsWaiting++;
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Unlock();
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WaitForSingleObject(m_hSemaphore, INFINITE);
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}
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}
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//
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// Virtual functions derived class MUST override
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//
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virtual const GUID & SurfaceCLSID() = 0;
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virtual HRESULT CreateARGBPointer(CDXBaseSurface * pSurface, CDXBaseARGBPtr ** ppPtr) = 0;
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virtual void DeleteARGBPointer(CDXBaseARGBPtr *pPtr) = 0;
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//
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// Class may override this virtual function to return a more accurate enum
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// for example, no transparency or translucency.
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//
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virtual DXSAMPLEFORMATENUM SampleFormatEnum()
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{
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return (DXSAMPLEFORMATENUM)(DXPF_NONSTANDARD | DXPF_TRANSPARENCY | DXPF_TRANSLUCENCY);
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}
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//
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// Class may override this virtual function to perform necessary computations
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// when the size of the surface changes. The base class will only call this
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// function from InitSurface. You may choose to call it from other interfaces
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// you implement, for example IDXTScaleOutput.
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//
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// This function will be called with the critical section taken and 0 outstanding
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// surface pointers (_EnterCritWith0PtrLocks).
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//
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virtual HRESULT OnSetSize(ULONG Width, ULONG Height)
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{
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if (m_Width != Width || m_Height != Height)
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{
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m_Width = Width;
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m_Height = Height;
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m_dwGenerationId++;
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}
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return S_OK;
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}
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//
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// Internal functions for base class
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//
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void _InternalUnlock(CDXBaseARGBPtr *pPtrToUnlock);
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//
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// Static member function for registering surface
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//
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static HRESULT RegisterSurface(REFCLSID rcid, int ResourceId, ULONG cCatImpl, const CATID * pCatImpl,
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ULONG cCatReq, const CATID * pCatReq, BOOL bRegister);
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};
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struct DXPtrFillInfo
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{
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DXBASESAMPLE * pSamples;
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ULONG cSamples;
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ULONG x;
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ULONG y;
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BOOL bPremult;
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};
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class CDXBaseARGBPtr : public IDXARGBReadPtr
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{
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public:
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CDXBaseARGBPtr * m_pNext;
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CDXBaseSurface * m_pSurface;
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ULONG m_ulRefCount;
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DXPtrFillInfo m_FillInfo;
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RECT m_LockedRect;
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DXRUNINFO m_RunInfo;
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CDXBaseARGBPtr(CDXBaseSurface *pSurface) :
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m_pSurface(pSurface),
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m_pNext(NULL),
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m_ulRefCount(0) {}
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//
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// IUnknown
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//
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STDMETHODIMP QueryInterface(REFIID riid, void ** ppv);
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ULONG STDMETHODCALLTYPE AddRef();
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ULONG STDMETHODCALLTYPE Release();
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//
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// IDXARGBReadPtr
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//
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HRESULT STDMETHODCALLTYPE GetSurface(REFIID riid, void **ppSurface);
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DXSAMPLEFORMATENUM STDMETHODCALLTYPE GetNativeType(DXNATIVETYPEINFO *pInfo);
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void STDMETHODCALLTYPE Move(long cSamples);
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void STDMETHODCALLTYPE MoveToRow(ULONG y);
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void STDMETHODCALLTYPE MoveToXY(ULONG x, ULONG y);
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ULONG STDMETHODCALLTYPE MoveAndGetRunInfo(ULONG Row, const DXRUNINFO ** ppInfo);
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DXSAMPLE *STDMETHODCALLTYPE Unpack(DXSAMPLE *pSamples, ULONG cSamples, BOOL bMove);
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DXPMSAMPLE *STDMETHODCALLTYPE UnpackPremult(DXPMSAMPLE *pSamples, ULONG cSamples, BOOL bMove);
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void STDMETHODCALLTYPE UnpackRect(const DXPACKEDRECTDESC *pDesc);
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//
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// Virtual function derived class MUST override
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//
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virtual void FillSamples(const DXPtrFillInfo & FillInfo) = 0;
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//
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// Virtual functions derived class MAY want to override (but you will need to call the base class too)
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//
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virtual HRESULT InitFromLock(const RECT & rect, ULONG ulTimeOut, DWORD dwLockFlags, REFIID riid, void ** ppv);
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};
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//=== Macro Definitions ============================================
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#define DECLARE_REGISTER_DX_SURFACE(id)\
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static HRESULT WINAPI UpdateRegistry(BOOL bRegister) \
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{ \
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CATID cat[2]; \
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cat[0] = CATID_DXSurface; \
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cat[1] = CATID_DXImageTransform; \
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return RegisterSurface(GetObjectCLSID(), (id), 2, cat, 0, NULL, bRegister); \
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}
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#define DECLARE_REGISTER_DX_AUTHORING_SURFACE(id)\
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static HRESULT WINAPI UpdateRegistry(BOOL bRegister) \
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{ \
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CATID cat[3]; \
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cat[0] = CATID_DXSurface; \
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cat[1] = CATID_DXImageTransform; \
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cat[2] = CATID_DXAuthoringTransform; \
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return RegisterSurface(GetObjectCLSID(), (id), 3, cat, 0, NULL, bRegister); \
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}
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#pragma option pop /*P_O_Pop*/
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#endif
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