Windows2003-3790/windows/appcompat/shims/specific/ultima9.cpp

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2001-01-01 00:00:00 +01:00
/*++
Copyright (c) 2000 Microsoft Corporation
Module Name:
Ultima9.cpp
Abstract:
Clean up bad ddraw CreateSurface caps.
Notes:
This is an app specific shim.
History:
03/04/2000 linstev Created
--*/
#include "precomp.h"
IMPLEMENT_SHIM_BEGIN(Ultima9)
#include "ShimHookMacro.h"
APIHOOK_ENUM_BEGIN
APIHOOK_ENUM_ENTRY_DIRECTX_COMSERVER()
APIHOOK_ENUM_END
IMPLEMENT_DIRECTX_COMSERVER_HOOKS()
VOID FixCaps(LPDDSURFACEDESC lpDDSurfaceDesc)
{
if (lpDDSurfaceDesc->dwFlags & DDSD_CAPS)
{
if ((lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_COMPLEX) &&
(lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_MIPMAP))
{
lpDDSurfaceDesc->ddsCaps.dwCaps |= DDSCAPS_TEXTURE;
}
}
}
VOID FixCaps2(LPDDSURFACEDESC2 lpDDSurfaceDesc)
{
if (lpDDSurfaceDesc->dwFlags & DDSD_CAPS)
{
if ((lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_COMPLEX) &&
(lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_MIPMAP))
{
lpDDSurfaceDesc->ddsCaps.dwCaps |= DDSCAPS_TEXTURE;
}
}
}
/*++
Hook create surface and fix parameters
--*/
HRESULT
COMHOOK(IDirectDraw, CreateSurface)(
PVOID pThis,
LPDDSURFACEDESC lpDDSurfaceDesc,
LPDIRECTDRAWSURFACE* lplpDDSurface,
IUnknown* pUnkOuter
)
{
FixCaps(lpDDSurfaceDesc);
_pfn_IDirectDraw_CreateSurface pfnOld =
ORIGINAL_COM(IDirectDraw, CreateSurface, pThis);
HRESULT hRet = (*pfnOld)(
pThis,
lpDDSurfaceDesc,
lplpDDSurface,
pUnkOuter);
return hRet;
}
/*++
Hook create surface and fix parameters
--*/
HRESULT
COMHOOK(IDirectDraw2, CreateSurface)(
PVOID pThis,
LPDDSURFACEDESC lpDDSurfaceDesc,
LPDIRECTDRAWSURFACE* lplpDDSurface,
IUnknown* pUnkOuter
)
{
FixCaps(lpDDSurfaceDesc);
_pfn_IDirectDraw2_CreateSurface pfnOld =
ORIGINAL_COM(IDirectDraw2, CreateSurface, pThis);
HRESULT hRet = (*pfnOld)(
pThis,
lpDDSurfaceDesc,
lplpDDSurface,
pUnkOuter);
return hRet;
}
/*++
Hook create surface and fix parameters
--*/
HRESULT
COMHOOK(IDirectDraw4, CreateSurface)(
PVOID pThis,
LPDDSURFACEDESC2 lpDDSurfaceDesc,
LPDIRECTDRAWSURFACE* lplpDDSurface,
IUnknown* pUnkOuter
)
{
FixCaps2(lpDDSurfaceDesc);
_pfn_IDirectDraw4_CreateSurface pfnOld =
ORIGINAL_COM(IDirectDraw4, CreateSurface, pThis);
Retry:
HRESULT hRet = (*pfnOld)(
pThis,
lpDDSurfaceDesc,
lplpDDSurface,
pUnkOuter);
if ((hRet == DDERR_INVALIDCAPS) && (lpDDSurfaceDesc->ddsCaps.dwCaps2))
{
lpDDSurfaceDesc->ddsCaps.dwCaps2 = 0;
lpDDSurfaceDesc->ddsCaps.dwCaps3 = 0;
lpDDSurfaceDesc->ddsCaps.dwCaps4 = 0;
goto Retry;
}
return hRet;
}
/*++
Hook create surface and fix parameters
--*/
HRESULT
COMHOOK(IDirectDraw7, CreateSurface)(
PVOID pThis,
LPDDSURFACEDESC2 lpDDSurfaceDesc,
LPDIRECTDRAWSURFACE* lplpDDSurface,
IUnknown* pUnkOuter
)
{
FixCaps2(lpDDSurfaceDesc);
_pfn_IDirectDraw7_CreateSurface pfnOld =
ORIGINAL_COM(IDirectDraw7, CreateSurface, pThis);
Retry:
HRESULT hRet = (*pfnOld)(
pThis,
lpDDSurfaceDesc,
lplpDDSurface,
pUnkOuter);
if ((hRet == DDERR_INVALIDCAPS) && (lpDDSurfaceDesc->ddsCaps.dwCaps2))
{
lpDDSurfaceDesc->ddsCaps.dwCaps2 = 0;
lpDDSurfaceDesc->ddsCaps.dwCaps3 = 0;
lpDDSurfaceDesc->ddsCaps.dwCaps4 = 0;
goto Retry;
}
return hRet;
}
/*++
Register hooked functions
--*/
HOOK_BEGIN
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