440 lines
10 KiB
C++
440 lines
10 KiB
C++
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/*++
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Copyright (c) 2001 Microsoft Corporation
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Module Name:
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CorrectCreateSurface.cpp
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Abstract:
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Clean up bad ddraw CreateSurface caps.
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Command Line FIX;CHK:Flags;DEL:Flags;ADD=Flags
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e.g., - FIX;CHK:DDSCAPS_TEXTURE;DEL:DDSCAPS_3DDEVICE
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FIX - Sets the flags which indicate whether to
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fix the flags and call the interface or to
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make a call and retry after fixing caps if the call fails.
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The default is to call the interface with
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passed in parameters and if the call fails
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then the flags are fixed and a retry is made.
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CHK - Check for flags (condition)
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ADD - Add flags
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DEL - Delete flags
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Notes:
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This is a general purpose shim.
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History:
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02/16/2001 a-leelat Created
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02/13/2002 astritz Security Review
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(CorrectCreateSurface)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY_DIRECTX_COMSERVER()
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APIHOOK_ENUM_END
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IMPLEMENT_DIRECTX_COMSERVER_HOOKS()
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DWORD g_dwFlagsChk = 0;
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DWORD g_dwFlagsAdd = 0;
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DWORD g_dwFlagsDel = 0;
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BOOL g_bTryAndFix = TRUE;
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struct DDFLAGS
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{
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WCHAR * lpszFlagName;
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DWORD dwFlag;
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};
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//Hold the falg entries
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//add any undefined flags to this array
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static DDFLAGS g_DDFlags[] =
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{
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{L"DDSCAPS_3DDEVICE", DDSCAPS_3DDEVICE},
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{L"DDSCAPS_ALLOCONLOAD", DDSCAPS_ALLOCONLOAD},
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{L"DDSCAPS_ALPHA", DDSCAPS_ALPHA},
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{L"DDSCAPS_BACKBUFFER", DDSCAPS_BACKBUFFER},
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{L"DDSCAPS_COMPLEX", DDSCAPS_COMPLEX},
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{L"DDSCAPS_FLIP", DDSCAPS_FLIP},
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{L"DDSCAPS_FRONTBUFFER", DDSCAPS_FRONTBUFFER},
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{L"DDSCAPS_HWCODEC", DDSCAPS_HWCODEC},
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{L"DDSCAPS_LIVEVIDEO", DDSCAPS_LIVEVIDEO},
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{L"DDSCAPS_LOCALVIDMEM", DDSCAPS_LOCALVIDMEM},
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{L"DDSCAPS_MIPMAP", DDSCAPS_MIPMAP},
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{L"DDSCAPS_MODEX", DDSCAPS_MODEX},
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{L"DDSCAPS_NONLOCALVIDMEM", DDSCAPS_NONLOCALVIDMEM},
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{L"DDSCAPS_OFFSCREENPLAIN", DDSCAPS_OFFSCREENPLAIN},
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{L"DDSCAPS_OPTIMIZED", DDSCAPS_OPTIMIZED},
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{L"DDSCAPS_OVERLAY", DDSCAPS_OVERLAY},
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{L"DDSCAPS_OWNDC", DDSCAPS_OWNDC},
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{L"DDSCAPS_PALETTE", DDSCAPS_PALETTE},
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{L"DDSCAPS_PRIMARYSURFACE", DDSCAPS_PRIMARYSURFACE},
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{L"DDSCAPS_STANDARDVGAMODE", DDSCAPS_STANDARDVGAMODE},
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{L"DDSCAPS_SYSTEMMEMORY", DDSCAPS_SYSTEMMEMORY},
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{L"DDSCAPS_TEXTURE", DDSCAPS_TEXTURE},
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{L"DDSCAPS_VIDEOMEMORY", DDSCAPS_VIDEOMEMORY},
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{L"DDSCAPS_VIDEOPORT", DDSCAPS_VIDEOPORT},
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{L"DDSCAPS_VISIBLE", DDSCAPS_VISIBLE},
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{L"DDSCAPS_WRITEONLY", DDSCAPS_WRITEONLY},
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{L"DDSCAPS_ZBUFFER", DDSCAPS_ZBUFFER},
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};
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#define DDFLAGSSIZE sizeof(g_DDFlags) / sizeof(g_DDFlags[0])
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DWORD GetDWord(const CString & lpFlag)
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{
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for ( int i = 0; i < DDFLAGSSIZE; i++ )
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{
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if (lpFlag.CompareNoCase(g_DDFlags[i].lpszFlagName) == 0)
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{
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return g_DDFlags[i].dwFlag;
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}
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}
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return 0;
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}
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const WCHAR * GetName(DWORD dwDDSCAPS)
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{
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for ( int i = 0; i < DDFLAGSSIZE; i++ )
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{
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if (g_DDFlags[i].dwFlag == dwDDSCAPS)
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{
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return g_DDFlags[i].lpszFlagName;
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}
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}
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return NULL;
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}
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VOID FixCaps(LPDDSURFACEDESC lpDDSurfaceDesc)
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{
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if ( lpDDSurfaceDesc->dwFlags & DDSD_CAPS )
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{
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//To Check
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if( !lpDDSurfaceDesc->ddsCaps.dwCaps || lpDDSurfaceDesc->ddsCaps.dwCaps & g_dwFlagsChk )
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{
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//To remove
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lpDDSurfaceDesc->ddsCaps.dwCaps &= ~g_dwFlagsDel;
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//To add
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lpDDSurfaceDesc->ddsCaps.dwCaps |= g_dwFlagsAdd;
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}
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}
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}
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VOID FixCaps2(LPDDSURFACEDESC2 lpDDSurfaceDesc)
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{
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if ( lpDDSurfaceDesc->dwFlags & DDSD_CAPS )
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{
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//To Check
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if ( !lpDDSurfaceDesc->ddsCaps.dwCaps || lpDDSurfaceDesc->ddsCaps.dwCaps & g_dwFlagsChk )
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{
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//To remove
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lpDDSurfaceDesc->ddsCaps.dwCaps &= ~g_dwFlagsDel;
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//To add
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lpDDSurfaceDesc->ddsCaps.dwCaps |= g_dwFlagsAdd;
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}
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}
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}
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HRESULT
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COMHOOK(IDirectDraw, CreateSurface)(
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PVOID pThis,
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LPDDSURFACEDESC lpDDSurfaceDesc,
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LPDIRECTDRAWSURFACE* lplpDDSurface,
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IUnknown* pUnkOuter
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)
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{
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_pfn_IDirectDraw_CreateSurface pfnOld =
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ORIGINAL_COM(IDirectDraw, CreateSurface, pThis);
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//Fix it anyway
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if ( !g_bTryAndFix )
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FixCaps(lpDDSurfaceDesc);
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HRESULT hRet = (*pfnOld)(
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pThis,
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lpDDSurfaceDesc,
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lplpDDSurface,
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pUnkOuter);
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if ( (hRet == DDERR_INVALIDCAPS) || (hRet == DDERR_INVALIDPIXELFORMAT)||
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(hRet == DDERR_UNSUPPORTED) || (hRet == DDERR_OUTOFVIDEOMEMORY ) ||
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(hRet == DDERR_INVALIDPARAMS) )
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{
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FixCaps(lpDDSurfaceDesc);
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hRet = (*pfnOld)(
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pThis,
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lpDDSurfaceDesc,
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lplpDDSurface,
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pUnkOuter);
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}
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return hRet;
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}
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/*++
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Hook create surface and fix parameters
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--*/
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HRESULT
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COMHOOK(IDirectDraw2, CreateSurface)(
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PVOID pThis,
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LPDDSURFACEDESC lpDDSurfaceDesc,
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LPDIRECTDRAWSURFACE* lplpDDSurface,
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IUnknown* pUnkOuter
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)
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{
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_pfn_IDirectDraw2_CreateSurface pfnOld =
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ORIGINAL_COM(IDirectDraw2, CreateSurface, pThis);
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//Fix it anyway
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if ( !g_bTryAndFix )
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FixCaps(lpDDSurfaceDesc);
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HRESULT hRet = (*pfnOld)(
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pThis,
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lpDDSurfaceDesc,
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lplpDDSurface,
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pUnkOuter);
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if ( (hRet == DDERR_INVALIDCAPS) || (hRet == DDERR_INVALIDPIXELFORMAT) ||
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(hRet == DDERR_UNSUPPORTED) || (hRet == DDERR_OUTOFVIDEOMEMORY ) ||
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(hRet == DDERR_INVALIDPARAMS) )
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{
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FixCaps(lpDDSurfaceDesc);
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hRet = (*pfnOld)(
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pThis,
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lpDDSurfaceDesc,
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lplpDDSurface,
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pUnkOuter);
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}
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return hRet;
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}
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/*++
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Hook create surface and fix parameters
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--*/
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HRESULT
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COMHOOK(IDirectDraw4, CreateSurface)(
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PVOID pThis,
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LPDDSURFACEDESC2 lpDDSurfaceDesc,
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LPDIRECTDRAWSURFACE* lplpDDSurface,
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IUnknown* pUnkOuter
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)
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{
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_pfn_IDirectDraw4_CreateSurface pfnOld =
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ORIGINAL_COM(IDirectDraw4, CreateSurface, pThis);
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//Fix it anyway
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if ( !g_bTryAndFix )
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FixCaps2(lpDDSurfaceDesc);
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HRESULT hRet = (*pfnOld)(
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pThis,
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lpDDSurfaceDesc,
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lplpDDSurface,
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pUnkOuter);
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if ( (hRet == DDERR_INVALIDCAPS) || (hRet == DDERR_INVALIDPIXELFORMAT) ||
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(hRet == DDERR_UNSUPPORTED) || (hRet == DDERR_OUTOFVIDEOMEMORY ) ||
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(hRet == DDERR_INVALIDPARAMS) )
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{
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FixCaps2(lpDDSurfaceDesc);
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hRet = (*pfnOld)(
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pThis,
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lpDDSurfaceDesc,
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lplpDDSurface,
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pUnkOuter);
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}
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return hRet;
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}
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/*++
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Hook create surface and fix parameters
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--*/
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HRESULT
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COMHOOK(IDirectDraw7, CreateSurface)(
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PVOID pThis,
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LPDDSURFACEDESC2 lpDDSurfaceDesc,
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LPDIRECTDRAWSURFACE* lplpDDSurface,
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IUnknown* pUnkOuter
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)
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{
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_pfn_IDirectDraw7_CreateSurface pfnOld =
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ORIGINAL_COM(IDirectDraw7, CreateSurface, pThis);
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if ( !g_bTryAndFix )
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FixCaps2(lpDDSurfaceDesc);
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HRESULT hRet = (*pfnOld)(
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pThis,
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lpDDSurfaceDesc,
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lplpDDSurface,
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pUnkOuter);
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if ( (hRet == DDERR_INVALIDCAPS) || (hRet == DDERR_INVALIDPIXELFORMAT) ||
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(hRet == DDERR_UNSUPPORTED) || (hRet == DDERR_OUTOFVIDEOMEMORY) ||
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(hRet == DDERR_INVALIDPARAMS ) )
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{
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FixCaps2(lpDDSurfaceDesc);
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hRet = (*pfnOld)(
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pThis,
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lpDDSurfaceDesc,
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lplpDDSurface,
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pUnkOuter);
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}
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return hRet;
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}
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BOOL
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ParseCommandLine(const char * lpszCommandLine)
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{
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CSTRING_TRY
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{
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DPFN( eDbgLevelInfo, "[ParseCommandLine] CommandLine(%s)\n", lpszCommandLine);
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CStringToken csCommandLine(lpszCommandLine, ";|:=");
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CString csOperator;
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while (csCommandLine.GetToken(csOperator))
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{
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if (csOperator.CompareNoCase(L"Fix") == 0)
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{
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//Go ahead and fix the caps
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//before we make the call.
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g_bTryAndFix = FALSE;
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DPFN( eDbgLevelInfo, "[ParseCommandLine] Do not fix\n", lpszCommandLine);
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}
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else
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{
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// The next token is the caps to add
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CString csDDSCAPS;
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csCommandLine.GetToken(csDDSCAPS);
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DWORD dwDDSCAPS = GetDWord(csDDSCAPS); // returns 0 for unknown DDSCAPS
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if (dwDDSCAPS)
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{
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if (csOperator.CompareNoCase(L"Add") == 0)
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{
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DPFN( eDbgLevelInfo, "[ParseCommandLine] Add(%S)\n", GetName(dwDDSCAPS));
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g_dwFlagsAdd |= dwDDSCAPS;
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}
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else if (csOperator.CompareNoCase(L"Del") == 0)
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{
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DPFN( eDbgLevelInfo, "[ParseCommandLine] Del(%S)\n", GetName(dwDDSCAPS));
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g_dwFlagsDel |= dwDDSCAPS;
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}
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else if (csOperator.CompareNoCase(L"Chk") == 0)
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{
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DPFN( eDbgLevelInfo, "[ParseCommandLine] Chk(%S)\n", GetName(dwDDSCAPS));
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g_dwFlagsChk |= dwDDSCAPS;
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}
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}
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}
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}
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}
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CSTRING_CATCH
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{
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return FALSE;
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|
}
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
NOTIFY_FUNCTION(
|
||
|
|
DWORD fdwReason)
|
||
|
|
{
|
||
|
|
BOOL bSuccess = TRUE;
|
||
|
|
|
||
|
|
if (fdwReason == DLL_PROCESS_ATTACH)
|
||
|
|
{
|
||
|
|
// Run the command line to check for adjustments to defaults
|
||
|
|
bSuccess = ParseCommandLine(COMMAND_LINE);
|
||
|
|
}
|
||
|
|
|
||
|
|
return bSuccess;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Register hooked functions
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
HOOK_BEGIN
|
||
|
|
|
||
|
|
CALL_NOTIFY_FUNCTION
|
||
|
|
APIHOOK_ENTRY_DIRECTX_COMSERVER()
|
||
|
|
|
||
|
|
COMHOOK_ENTRY(DirectDraw, IDirectDraw, CreateSurface, 6)
|
||
|
|
COMHOOK_ENTRY(DirectDraw, IDirectDraw2, CreateSurface, 6)
|
||
|
|
COMHOOK_ENTRY(DirectDraw, IDirectDraw4, CreateSurface, 6)
|
||
|
|
COMHOOK_ENTRY(DirectDraw, IDirectDraw7, CreateSurface, 6)
|
||
|
|
|
||
|
|
HOOK_END
|
||
|
|
|
||
|
|
|
||
|
|
IMPLEMENT_SHIM_END
|
||
|
|
|