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fixing smaller bug in NtGdiDdCanCreateSurface

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svn path=/trunk/; revision=26063
This commit is contained in:
Magnus Olsen 2007-03-11 15:18:12 +00:00
parent b860835afa
commit 537190e037
1 changed files with 34 additions and 18 deletions
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52
reactos/subsystems/win32/win32k/ntddraw/dd.c
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@ -131,28 +131,44 @@ DWORD STDCALL NtGdiDdCanCreateSurface(
PDD_CANCREATESURFACEDATA puCanCreateSurfaceData
)
{
DWORD ddRVal = DDHAL_DRIVER_NOTHANDLED;
PDD_DIRECTDRAW_GLOBAL lgpl;
DWORD ddRVal = DDHAL_DRIVER_NOTHANDLED;
DD_CANCREATESURFACEDATA CanCreateSurfaceData;
DDSURFACEDESC desc;
NTSTATUS Status = FALSE;
PDD_DIRECTDRAW pDirectDraw = NULL;
PDD_DIRECTDRAW pDirectDraw = GDIOBJ_LockObj(DdHandleTable, hDirectDrawLocal, GDI_OBJECT_TYPE_DIRECTDRAW);
DPRINT1("NtGdiDdCanCreateSurface\n");
DPRINT1("NtGdiDdCanCreateSurface\n");
_SEH_TRY
{
ProbeForRead(puCanCreateSurfaceData, sizeof(DD_CANCREATESURFACEDATA), 1);
RtlCopyMemory(&CanCreateSurfaceData,puCanCreateSurfaceData, sizeof(DD_CANCREATESURFACEDATA));
if (pDirectDraw != NULL)
{
/* FIXME can be version 2 of DDSURFACEDESC */
ProbeForRead(&CanCreateSurfaceData.lpDDSurfaceDesc, sizeof(DDSURFACEDESC), 1);
RtlCopyMemory(&desc,&CanCreateSurfaceData.lpDDSurfaceDesc, sizeof(DD_CANCREATESURFACEDATA));
}
_SEH_HANDLE
{
Status = _SEH_GetExceptionCode();
}
_SEH_END;
if (pDirectDraw->DD.dwFlags & DDHAL_CB32_CANCREATESURFACE)
{
lgpl = puCanCreateSurfaceData->lpDD;
puCanCreateSurfaceData->lpDD = &pDirectDraw->Global;
ddRVal = pDirectDraw->DD.CanCreateSurface(puCanCreateSurfaceData);
puCanCreateSurfaceData->lpDD = lgpl;
}
GDIOBJ_UnlockObjByPtr(DdHandleTable, pDirectDraw);
}
if(NT_SUCCESS(Status))
{
pDirectDraw = GDIOBJ_LockObj(DdHandleTable, hDirectDrawLocal, GDI_OBJECT_TYPE_DIRECTDRAW);
if (pDirectDraw != NULL)
{
if (pDirectDraw->DD.dwFlags & DDHAL_CB32_CANCREATESURFACE)
{
CanCreateSurfaceData.ddRVal = DDERR_GENERIC;
CanCreateSurfaceData.lpDD = &pDirectDraw->Global;
CanCreateSurfaceData.lpDDSurfaceDesc = &desc;
ddRVal = pDirectDraw->DD.CanCreateSurface(&CanCreateSurfaceData);
}
}
GDIOBJ_UnlockObjByPtr(DdHandleTable, pDirectDraw);
}
return ddRVal;
}