SIGSEGV in IDirectDrawImpl_EnumDisplayModes
Matthew Bloch
matthew at bytemark.co.uk
Thu Oct 31 07:45:53 CST 2002
Apologies for needing some more hand-holding: from Alexander's advice I now
have the game linking and beginning to execute. It now gets stuck while
executing this piece of C++:
---------------------------------------------------------------------------
void tDirectDrawScreen::destroy()
{
DDSURFACEDESC ddsd;
memset(&ddsd,0,sizeof(DDSURFACEDESC));
ddsd.dwSize = sizeof(DDSURFACEDESC);
ddsd.dwFlags = DDSD_CAPS;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
HRESULT hr = mp_directDraw->CreateSurface(&ddsd, &mp_primarySurface, NULL);
// crashes here
...
}
---------------------------------------------------------------------------
This being the segfault that occurs:
---------------------------------------------------------------------------
#0 0x40c92c4c in ?? ()
#1 0x40f56f5f in User_DirectDraw_EnumDisplayModes (iface=0x403acc00,
dwFlags=1086925740, pDDSD=0x808c678, context=0x40c92be8, callback=0x40f55dfc
<EnumDisplayModesCallbackThunk>) at ddraw/user.c:373
#2 0x40f55e81 in IDirectDrawImpl_EnumDisplayModes (This=0x40c92be8,
dwFlags=1086925900, pDDSD=0x808c678, context=0x40c92a94, cb=0x40c92a94) at
ddraw/thunks.c:348
#3 0x4080f9b2 in tDirectDrawScreen::setUpWindowedSurfaces (this=0x808c668) at
Source/tDirectDrawScreen.cpp:852
#4 0x4080cf1f in tDirectDrawScreen::initialise (this=0x808c668,
fullScreen=false, screenWidth=640, screenHeight=480) at
Source/tDirectDrawScreen.cpp:88
#5 0x4080caac in tDirectDrawScreen::tDirectDrawScreen (this=0x808c668,
fullScreen=false, screenWidth=640, screenHeight=480) at
Source/tDirectDrawScreen.cpp:55
#6 0x4082d76f in InitApp (hInst=0x40620000, nCmdShow=1) at
Source/Main.cpp:289
#7 0x4082d8fc in WinMain (hInst=0x40620000, hPrevInst=0x0,
lpCmdLine=0x403708ad "", nCmdShow=1) at Source/Main.cpp:322
#8 0x4062509c in __wine_exe_main () from
/home/mattbee/Work/Nemesis/LSNClient.exe
#9 0x400b3799 in start_process () at ../../scheduler/process.c:564
#10 0x400b76c9 in call_on_thread_stack (func=0x400b3558) at
../../scheduler/sysdeps.c:112
---------------------------------------------------------------------------
Any ideas why this might be happening?
--
Matthew Bloch Bytemark Computer Consulting Limited
http://www.bytemark.co.uk/
tel. +44 (0) 8707 455026
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