-
-// ============================================================================
-// DirectDraw-based wxDisplay implementation
-// ============================================================================
-
-#if wxUSE_DIRECTDRAW
-
-// ----------------------------------------------------------------------------
-// wxDisplayFactoryDirectDraw initialization
-// ----------------------------------------------------------------------------
-
-wxDisplayFactoryDirectDraw::wxDisplayFactoryDirectDraw()
-{
- if ( !ms_supportsMultimon )
- return;
-
-#if wxUSE_LOG
- // suppress the errors if ddraw.dll is not found, we're prepared to handle
- // this
- wxLogNull noLog;
-#endif
-
- m_dllDDraw.Load(_T("ddraw.dll"));
-
- if ( !m_dllDDraw.IsLoaded() )
- return;
-
- DirectDrawEnumerateEx_t pDDEnumEx = (DirectDrawEnumerateEx_t)
- m_dllDDraw.GetSymbolAorW(_T("DirectDrawEnumerateEx"));
- if ( !pDDEnumEx )
- return;
-
- // we can't continue without DirectDrawCreate() later, so resolve it right
- // now and fail the initialization if it's not available
- m_pfnDirectDrawCreate = (DirectDrawCreate_t)
- m_dllDDraw.GetSymbol(_T("DirectDrawCreate"));
- if ( !m_pfnDirectDrawCreate )
- return;
-
- if ( (*pDDEnumEx)(DDEnumExCallback,
- this,
- DDENUM_ATTACHEDSECONDARYDEVICES) != DD_OK )
- {
- wxLogLastError(_T("DirectDrawEnumerateEx"));
- }
-}
-
-wxDisplayFactoryDirectDraw::~wxDisplayFactoryDirectDraw()
-{
- // we must clear m_displays now, before m_dllDDraw is unloaded as otherwise
- // calling m_pDD2->Release() later would crash
- Clear();
-}
-
-// ----------------------------------------------------------------------------
-// callbacks for monitor/modes enumeration stuff
-// ----------------------------------------------------------------------------
-
-BOOL WINAPI
-wxDisplayFactoryDirectDraw::DDEnumExCallback(GUID *pGuid,
- LPTSTR WXUNUSED(driverDescription),
- LPTSTR driverName,
- LPVOID lpContext,
- HMONITOR hmon)
-{
- if ( pGuid )
- {
- wxDisplayFactoryDirectDraw * self =
- wx_static_cast(wxDisplayFactoryDirectDraw *, lpContext);
- self->AddDisplay(*pGuid, hmon, driverName);
- }
- //else: we're called for the primary monitor, skip it
-
- // continue the enumeration
- return TRUE;
-}
-
-// ----------------------------------------------------------------------------
-// wxDisplayFactoryDirectDraw helpers
-// ----------------------------------------------------------------------------
-
-void wxDisplayFactoryDirectDraw::AddDisplay(const GUID& guid,
- HMONITOR hmon,
- LPTSTR name)
-{
- m_displays.Add(new wxDisplayInfoDirectDraw(guid, hmon, name));
-}
-
-// ----------------------------------------------------------------------------
-// wxDisplayFactoryDirectDraw inherited pure virtuals implementation
-// ----------------------------------------------------------------------------
-
-wxDisplayImpl *wxDisplayFactoryDirectDraw::CreateDisplay(unsigned n)
-{
- wxCHECK_MSG( n < m_displays.size(), NULL, _T("invalid display index") );
-
- wxDisplayInfoDirectDraw *
- info = wx_static_cast(wxDisplayInfoDirectDraw *, m_displays[n]);
-
- if ( !info->m_pDD2 )
- {
- IDirectDraw *pDD;
- GUID guid(info->m_guid);
- HRESULT hr = (*m_pfnDirectDrawCreate)(&guid, &pDD, NULL);
-
- if ( FAILED(hr) || !pDD )
- {
- // what to do??
- wxLogApiError(_T("DirectDrawCreate"), hr);
- return NULL;
- }
-
- // we got IDirectDraw, but we need IDirectDraw2
- hr = pDD->QueryInterface(wxIID_IDirectDraw2, (void **)&info->m_pDD2);
- pDD->Release();
-
- if ( FAILED(hr) || !info->m_pDD2 )
- {
- wxLogApiError(_T("IDirectDraw::QueryInterface(IDD2)"), hr);
- return NULL;
- }
-
- // NB: m_pDD2 will now be only destroyed when m_displays is destroyed
- // which is ok as we don't want to recreate DD objects all the time
- }
- //else: DirectDraw object corresponding to our display already exists
-
- return new wxDisplayImplDirectDraw(n, *info, info->m_pDD2);
-}
-
-// ============================================================================
-// wxDisplayImplDirectDraw
-// ============================================================================
-
-// ----------------------------------------------------------------------------
-// video modes enumeration
-// ----------------------------------------------------------------------------
-
-// tiny helper class used to pass information from GetModes() to
-// wxDDEnumModesCallback
-class wxDDVideoModesAdder
-{
-public:
- // our Add() method will add modes matching modeMatch to modes array
- wxDDVideoModesAdder(wxArrayVideoModes& modes, const wxVideoMode& modeMatch)
- : m_modes(modes),
- m_modeMatch(modeMatch)
- {
- }
-
- void Add(const wxVideoMode& mode)
- {
- if ( mode.Matches(m_modeMatch) )
- m_modes.Add(mode);
- }
-
-private:
- wxArrayVideoModes& m_modes;
- const wxVideoMode& m_modeMatch;
-
- DECLARE_NO_COPY_CLASS(wxDDVideoModesAdder)
-};
-
-HRESULT WINAPI wxDDEnumModesCallback(LPDDSURFACEDESC lpDDSurfaceDesc,
- LPVOID lpContext)
-{
- // we need at least the mode size
- static const DWORD FLAGS_REQUIRED = DDSD_HEIGHT | DDSD_WIDTH;
- if ( (lpDDSurfaceDesc->dwFlags & FLAGS_REQUIRED) == FLAGS_REQUIRED )
- {
- wxDDVideoModesAdder * const vmodes =
- wx_static_cast(wxDDVideoModesAdder *, lpContext);
-
- vmodes->Add(wxVideoMode(lpDDSurfaceDesc->dwWidth,
- lpDDSurfaceDesc->dwHeight,
- lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount,
- lpDDSurfaceDesc->dwRefreshRate));
- }
-
- // continue the enumeration
- return DDENUMRET_OK;
-}
-
-wxArrayVideoModes
-wxDisplayImplDirectDraw::GetModes(const wxVideoMode& modeMatch) const
-{
- wxArrayVideoModes modes;
- wxDDVideoModesAdder modesAdder(modes, modeMatch);
-
- HRESULT hr = m_pDD2->EnumDisplayModes
- (
- DDEDM_REFRESHRATES,
- NULL, // all modes
- &modesAdder, // callback parameter
- wxDDEnumModesCallback
- );
-
- if ( FAILED(hr) )
- {
- wxLogApiError(_T("IDirectDraw::EnumDisplayModes"), hr);
- }
-
- return modes;
-}
-
-// ----------------------------------------------------------------------------
-// video mode switching
-// ----------------------------------------------------------------------------
-
-bool wxDisplayImplDirectDraw::ChangeMode(const wxVideoMode& mode)
-{
- wxWindow *winTop = wxTheApp->GetTopWindow();
- wxCHECK_MSG( winTop, false, _T("top level window required for DirectX") );
-
- HRESULT hr = m_pDD2->SetCooperativeLevel
- (
- GetHwndOf(winTop),
- DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN
- );
- if ( FAILED(hr) )
- {
- wxLogApiError(_T("IDirectDraw2::SetCooperativeLevel"), hr);
-
- return false;
- }
-
- hr = m_pDD2->SetDisplayMode(mode.w, mode.h, mode.bpp, mode.refresh, 0);
- if ( FAILED(hr) )
- {
- wxLogApiError(_T("IDirectDraw2::SetDisplayMode"), hr);
-
- return false;
- }
-
- return true;
-}
-
-#endif // wxUSE_DIRECTDRAW
-
projects / wxWidgets.git / blobdiff