/////////////////////////////////////////////////////////////////////////////
// Name: src/msw/display.cpp
// Purpose: MSW Implementation of wxDisplay class
-// Author: Royce Mitchell III
-// Modified by: VZ (resolutions enumeration/change support, DirectDraw, ...)
-// Ryan Norton (IsPrimary override)
+// Author: Royce Mitchell III, Vadim Zeitlin
+// Modified by: Ryan Norton (IsPrimary override)
// Created: 06/21/02
// RCS-ID: $Id$
// Copyright: (c) wxWidgets team
+// Copyright: (c) 2002-2006 wxWidgets team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#if wxUSE_DISPLAY
+#include "wx/display.h"
+
#ifndef WX_PRECOMP
- #include "wx/app.h"
- #include "wx/dynarray.h"
- #include "wx/frame.h"
+ #include "wx/dynarray.h"
+ #include "wx/app.h"
+ #include "wx/frame.h"
#endif
#include "wx/dynload.h"
+#include "wx/sysopt.h"
-#include "wx/display.h"
+#include "wx/display_impl.h"
+#include "wx/msw/wrapwin.h"
+#include "wx/msw/missing.h"
+
+// define this to use DirectDraw for display mode switching: this is disabled
+// by default because ddraw.h is now always available and also it's not really
+// clear what are the benefits of using DirectDraw compared to the standard API
-// Mingw's w32api headers don't include ddraw.h, though the user may have
-// installed it. If using configure, we actually probe for ddraw.h there
-// and set HAVE_DDRAW_H. Otherwise, assume we don't have it if using
-// the w32api headers, and that we do otherwise.
-#if !defined HAVE_W32API_H && !defined HAVE_DDRAW_H
-#define HAVE_DDRAW_H 1
+#if !defined(wxUSE_DIRECTDRAW)
+ #define wxUSE_DIRECTDRAW 0
#endif
#ifndef __WXWINCE__
// is only defined in winuser.h if WINVER >= 0x0500
#if !defined(HMONITOR_DECLARED) && !defined(MNS_NOCHECK)
DECLARE_HANDLE(HMONITOR);
+ typedef BOOL(CALLBACK * MONITORENUMPROC )(HMONITOR, HDC, LPRECT, LPARAM);
+ typedef struct tagMONITORINFO
+ {
+ DWORD cbSize;
+ RECT rcMonitor;
+ RECT rcWork;
+ DWORD dwFlags;
+ } MONITORINFO, *LPMONITORINFO;
+ typedef struct tagMONITORINFOEX : public tagMONITORINFO
+ {
+ TCHAR szDevice[CCHDEVICENAME];
+ } MONITORINFOEX, *LPMONITORINFOEX;
+ #define MONITOR_DEFAULTTONULL 0x00000000
+ #define MONITOR_DEFAULTTOPRIMARY 0x00000001
+ #define MONITOR_DEFAULTTONEAREST 0x00000002
+ #define MONITORINFOF_PRIMARY 0x00000001
#define HMONITOR_DECLARED
#endif
#endif // !__WXWINCE__
-#ifdef HAVE_DDRAW_H
-#include <ddraw.h>
-
-// we don't want to link with ddraw.lib which contains the real
-// IID_IDirectDraw2 definition
-const GUID wxIID_IDirectDraw2 =
- { 0xB3A6F3E0, 0x2B43, 0x11CF, { 0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 } };
-#endif
-
-// ----------------------------------------------------------------------------
-// macros
-// ----------------------------------------------------------------------------
+#if wxUSE_DIRECTDRAW
+ #include <ddraw.h>
-#ifdef _UNICODE
- #define WINFUNC(x) _T(#x) L"W"
-#else
- #define WINFUNC(x) #x "A"
-#endif
+ // we don't want to link with ddraw.lib which contains the real
+ // IID_IDirectDraw2 definition
+ const GUID wxIID_IDirectDraw2 =
+ { 0xB3A6F3E0, 0x2B43, 0x11CF, { 0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 } };
+#endif // wxUSE_DIRECTDRAW
// ----------------------------------------------------------------------------
// typedefs for dynamically loaded Windows functions
DWORD dwFlags,
LPVOID lParam);
-#ifdef HAVE_DDRAW_H
+#if wxUSE_DIRECTDRAW
typedef BOOL (PASCAL *DDEnumExCallback_t)(GUID *pGuid,
LPTSTR driverDescription,
LPTSTR driverName,
typedef HRESULT (WINAPI *DirectDrawCreate_t)(GUID *lpGUID,
LPDIRECTDRAW *lplpDD,
IUnknown *pUnkOuter);
-#endif
+#endif // wxUSE_DIRECTDRAW
typedef BOOL (WINAPI *EnumDisplayMonitors_t)(HDC,LPCRECT,MONITORENUMPROC,LPARAM);
typedef HMONITOR (WINAPI *MonitorFromPoint_t)(POINT,DWORD);
typedef HMONITOR (WINAPI *MonitorFromWindow_t)(HWND,DWORD);
typedef BOOL (WINAPI *GetMonitorInfo_t)(HMONITOR,LPMONITORINFO);
-static EnumDisplayMonitors_t gs_EnumDisplayMonitors = NULL;
-static MonitorFromPoint_t gs_MonitorFromPoint = NULL;
-static MonitorFromWindow_t gs_MonitorFromWindow = NULL;
-static GetMonitorInfo_t gs_GetMonitorInfo = NULL;
+#ifndef __WXWINCE__
+// emulation of ChangeDisplaySettingsEx() for Win95
+LONG WINAPI ChangeDisplaySettingsExForWin95(LPCTSTR WXUNUSED(lpszDeviceName),
+ LPDEVMODE lpDevMode,
+ HWND WXUNUSED(hwnd),
+ DWORD dwFlags,
+ LPVOID WXUNUSED(lParam))
+{
+ return ::ChangeDisplaySettings(lpDevMode, dwFlags);
+}
+#endif // !__WXWINCE__
// ----------------------------------------------------------------------------
-// private classes
+// display information classes
// ----------------------------------------------------------------------------
-class wxDisplayInfo
+struct wxDisplayInfo
{
-public:
- // handle of this monitor used by MonitorXXX() functions, never NULL
- HMONITOR m_hmon;
+ wxDisplayInfo(HMONITOR hmon = NULL)
+ {
+ m_hmon = hmon;
+ m_flags = (DWORD)-1;
+ }
- // IDirectDraw object used to control this display, may be NULL
-#ifdef HAVE_DDRAW_H
- IDirectDraw2 *m_pDD2;
-#else
- void *m_pDD2;
-#endif
+ virtual ~wxDisplayInfo() { }
- // DirectDraw GUID for this display, only valid when using DirectDraw
- GUID m_guid;
+
+ // use GetMonitorInfo() to fill in all of our fields if needed (i.e. if it
+ // hadn't been done before)
+ void Initialize();
+
+
+ // handle of this monitor used by MonitorXXX() functions, never NULL
+ HMONITOR m_hmon;
// the entire area of this monitor in virtual screen coordinates
wxRect m_rect;
+ // the work or client area, i.e. the area available for the normal windows
+ wxRect m_rectClient;
+
// the display device name for this monitor, empty initially and retrieved
// on demand by DoGetName()
wxString m_devName;
- wxDisplayInfo() { m_hmon = NULL; m_pDD2 = NULL; }
- ~wxDisplayInfo() {
-#ifdef HAVE_DDRAW_H
- if ( m_pDD2 ) m_pDD2->Release();
-#endif
- }
+ // the flags of this monitor, also used as initialization marker: if this
+ // is -1, GetMonitorInfo() hadn't been called yet
+ DWORD m_flags;
};
-WX_DECLARE_OBJARRAY(wxDisplayInfo, wxDisplayInfoArray);
-#include "wx/arrimpl.cpp"
-WX_DEFINE_OBJARRAY(wxDisplayInfoArray);
-
-// this module is used to cleanup gs_displays array
-class wxDisplayModule : public wxModule
-{
-public:
- virtual bool OnInit() { return true; }
- virtual void OnExit();
-
- DECLARE_DYNAMIC_CLASS(wxDisplayModule)
-};
-
-IMPLEMENT_DYNAMIC_CLASS(wxDisplayModule, wxModule)
+WX_DEFINE_ARRAY_PTR(wxDisplayInfo *, wxDisplayInfoArray);
// ----------------------------------------------------------------------------
-// globals
+// common base class for all Win32 wxDisplayImpl versions
// ----------------------------------------------------------------------------
-#ifdef HAVE_DDRAW_H
-// do we use DirectX?
-static bool gs_useDirectX = false;
-#endif
-
-// Try to look up the functions needed for supporting multiple monitors. If
-// they aren't available (probably because we're running on Win95 or NT4 which
-// predate this API), set a flag which makes wxDisplay return results for a
-// single screen.
-static bool OsSupportsMultipleMonitors()
+class wxDisplayImplWin32Base : public wxDisplayImpl
{
- static int isNewEnough = -1;
- if ( isNewEnough == -1 )
+public:
+ wxDisplayImplWin32Base(unsigned n, wxDisplayInfo& info)
+ : wxDisplayImpl(n),
+ m_info(info)
{
- isNewEnough = 0;
- wxDynamicLibrary dllUser32(_T("user32.dll"));
- // Check for one of the symbols to avoid logging errors just because
- // we happen to be running on Win95 or NT4.
- if ( dllUser32.IsLoaded() &&
- dllUser32.HasSymbol(wxT("EnumDisplayMonitors")) )
- {
- // GetMonitorInfo has Unicode/ANSI variants, the others don't.
- gs_EnumDisplayMonitors = (EnumDisplayMonitors_t)
- dllUser32.GetSymbol(wxT("EnumDisplayMonitors"));
- gs_MonitorFromPoint = (MonitorFromPoint_t)
- dllUser32.GetSymbol(wxT("MonitorFromPoint"));
- gs_MonitorFromWindow = (MonitorFromWindow_t)
- dllUser32.GetSymbol(wxT("MonitorFromWindow"));
- gs_GetMonitorInfo = (GetMonitorInfo_t)
- dllUser32.GetSymbol(WINFUNC(GetMonitorInfo));
- if ( gs_EnumDisplayMonitors != NULL &&
- gs_MonitorFromPoint != NULL &&
- gs_MonitorFromWindow != NULL &&
- gs_GetMonitorInfo != NULL )
- {
- isNewEnough = 1;
- }
- }
}
- return (isNewEnough != 0);
-}
-#ifdef HAVE_DDRAW_H
-// dynamically resolved DirectDrawCreate()
-static DirectDrawCreate_t gs_DirectDrawCreate = NULL;
-#endif
+ virtual wxRect GetGeometry() const;
+ virtual wxRect GetClientArea() const;
+ virtual wxString GetName() const;
+ virtual bool IsPrimary() const;
-// this is not really MT-unsafe as wxDisplay is only going to be used from the
-// main thread, i.e. we consider that it's a GUI class and so don't protect it
-static wxDisplayInfoArray *gs_displays = NULL;
+ virtual wxVideoMode GetCurrentMode() const;
-// ===========================================================================
-// implementation
-// ===========================================================================
+protected:
+ // convert a DEVMODE to our wxVideoMode
+ static wxVideoMode ConvertToVideoMode(const DEVMODE& dm)
+ {
+ // note that dmDisplayFrequency may be 0 or 1 meaning "standard one"
+ // and although 0 is ok for us we don't want to return modes with 1hz
+ // refresh
+ return wxVideoMode(dm.dmPelsWidth,
+ dm.dmPelsHeight,
+ dm.dmBitsPerPel,
+ dm.dmDisplayFrequency > 1 ? dm.dmDisplayFrequency : 0);
+ }
+
+ wxDisplayInfo& m_info;
+};
// ----------------------------------------------------------------------------
-// callbacks for monitor/modes enumeration stuff
+// common base class for all Win32 wxDisplayFactory versions
// ----------------------------------------------------------------------------
-static BOOL CALLBACK wxmswMonitorEnumProc (
- HMONITOR hMonitor, // handle to display monitor
- HDC WXUNUSED(hdcMonitor), // handle to monitor-appropriate device context
- LPRECT lprcMonitor, // pointer to monitor intersection rectangle
- LPARAM WXUNUSED(dwData) // data passed from EnumDisplayMonitors (unused)
-)
+// functions dynamically bound by wxDisplayFactoryWin32Base::Initialize()
+static MonitorFromPoint_t gs_MonitorFromPoint = NULL;
+static MonitorFromWindow_t gs_MonitorFromWindow = NULL;
+static GetMonitorInfo_t gs_GetMonitorInfo = NULL;
+
+class wxDisplayFactoryWin32Base : public wxDisplayFactory
{
- wxDisplayInfo *info = new wxDisplayInfo();
+public:
+ virtual ~wxDisplayFactoryWin32Base();
- // we need hMonitor to be able to map display id to it which is needed for
- // MonitorXXX() functions, in particular MonitorFromPoint()
- info->m_hmon = hMonitor;
+ bool IsOk() const { return !m_displays.empty(); }
- // we also store the display geometry
- info->m_rect.SetX ( lprcMonitor->left );
- info->m_rect.SetY ( lprcMonitor->top );
- info->m_rect.SetWidth ( lprcMonitor->right - lprcMonitor->left );
- info->m_rect.SetHeight ( lprcMonitor->bottom - lprcMonitor->top );
+ virtual unsigned GetCount() { return unsigned(m_displays.size()); }
+ virtual int GetFromPoint(const wxPoint& pt);
+ virtual int GetFromWindow(const wxWindow *window);
- // now add this monitor to the array
- gs_displays->Add(info);
+protected:
+ // ctor checks if the current system supports multimon API and dynamically
+ // bind the functions we need if this is the case and sets
+ // ms_supportsMultimon if they're available
+ wxDisplayFactoryWin32Base();
- // continue the enumeration
- return true;
-}
+ // delete all m_displays elements: can be called from the derived class
+ // dtor if it is important to do this before destroying it (as in
+ // wxDisplayFactoryDirectDraw case), otherwise will be done by our dtor
+ void Clear();
-#ifdef HAVE_DDRAW_H
-BOOL PASCAL
-wxDDEnumExCallback(GUID *pGuid,
- LPTSTR WXUNUSED(driverDescription),
- LPTSTR driverName,
- LPVOID WXUNUSED(lpContext),
- HMONITOR hmon)
-{
- if ( pGuid )
- {
- wxDisplayInfo *info = new wxDisplayInfo();
+ // find the monitor corresponding to the given handle, return wxNOT_FOUND
+ // if not found
+ int FindDisplayFromHMONITOR(HMONITOR hmon) const;
- info->m_hmon = hmon;
- info->m_guid = *pGuid;
- info->m_devName = driverName;
- gs_displays->Add(info);
- }
- //else: we're called for the primary monitor, skip it
+ // flag indicating whether gs_MonitorXXX functions are available
+ static int ms_supportsMultimon;
- // continue the enumeration
- return true;
-}
-
-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 )
- {
- wxArrayVideoModes * const modes = (wxArrayVideoModes *)lpContext;
+ // the array containing information about all available displays, should be
+ // filled by the derived class ctors
+ wxDisplayInfoArray m_displays;
- modes->Add(wxVideoMode(lpDDSurfaceDesc->dwWidth,
- lpDDSurfaceDesc->dwHeight,
- lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount,
- lpDDSurfaceDesc->dwRefreshRate));
- }
- // continue the enumeration
- return DDENUMRET_OK;
-}
-#endif
+ DECLARE_NO_COPY_CLASS(wxDisplayFactoryWin32Base)
+};
// ----------------------------------------------------------------------------
-// local functions
+// wxDisplay implementation using Windows multi-monitor support functions
// ----------------------------------------------------------------------------
-#ifdef HAVE_DDRAW_H
-// initialize gs_displays using DirectX functions
-static bool DoInitDirectX()
+class wxDisplayImplMultimon : public wxDisplayImplWin32Base
{
-#if wxUSE_LOG
- // suppress the errors if ddraw.dll is not found
- wxLog::EnableLogging(false);
-#endif
+public:
+ wxDisplayImplMultimon(unsigned n, wxDisplayInfo& info)
+ : wxDisplayImplWin32Base(n, info)
+ {
+ }
- wxDynamicLibrary dllDX(_T("ddraw.dll"));
+ virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const;
+ virtual bool ChangeMode(const wxVideoMode& mode);
-#if wxUSE_LOG
- wxLog::EnableLogging();
-#endif
+private:
+ DECLARE_NO_COPY_CLASS(wxDisplayImplMultimon)
+};
- if ( !dllDX.IsLoaded() )
- return false;
+class wxDisplayFactoryMultimon : public wxDisplayFactoryWin32Base
+{
+public:
+ wxDisplayFactoryMultimon();
- DirectDrawEnumerateEx_t pDDEnumEx = (DirectDrawEnumerateEx_t)
- dllDX.GetSymbol(WINFUNC(DirectDrawEnumerateEx));
- if ( !pDDEnumEx )
- return false;
+ virtual wxDisplayImpl *CreateDisplay(unsigned n);
- // we'll also need DirectDrawCreate() later, resolve it right now
- gs_DirectDrawCreate = (DirectDrawCreate_t)
- dllDX.GetSymbol(_T("DirectDrawCreate"));
- if ( !gs_DirectDrawCreate )
- return false;
+private:
+ // EnumDisplayMonitors() callback
+ static BOOL CALLBACK MultimonEnumProc(HMONITOR hMonitor,
+ HDC hdcMonitor,
+ LPRECT lprcMonitor,
+ LPARAM dwData);
- if ( (*pDDEnumEx)(wxDDEnumExCallback,
- NULL,
- DDENUM_ATTACHEDSECONDARYDEVICES) != DD_OK )
- {
- return false;
- }
- // ok, it seems like we're going to use DirectDraw and so we're going to
- // need ddraw.dll all the time, don't unload it
- dllDX.Detach();
+ // add a monitor description to m_displays array
+ void AddDisplay(HMONITOR hMonitor, LPRECT lprcMonitor);
+};
- return true;
-}
-#endif
+// ----------------------------------------------------------------------------
+// wxDisplay implementation using DirectDraw
+// ----------------------------------------------------------------------------
+
+#if wxUSE_DIRECTDRAW
-// initialize gs_displays using the standard Windows functions
-static void DoInitStdWindows()
+struct wxDisplayInfoDirectDraw : wxDisplayInfo
{
- // enumerate all displays
- if ( !gs_EnumDisplayMonitors(NULL, NULL, wxmswMonitorEnumProc, 0) )
+ wxDisplayInfoDirectDraw(const GUID& guid, HMONITOR hmon, LPTSTR name)
+ : wxDisplayInfo(hmon),
+ m_guid(guid)
{
- wxLogLastError(wxT("EnumDisplayMonitors"));
+ m_pDD2 = NULL;
+ m_devName = name;
+ }
- // TODO: still create at least one (valid) entry in gs_displays for the
- // primary display!
+ virtual ~wxDisplayInfoDirectDraw()
+ {
+ if ( m_pDD2 )
+ m_pDD2->Release();
}
-}
-// this function must be called before accessing gs_displays array as it
-// creates and initializes it
-static void InitDisplays()
-{
- if ( gs_displays )
- return;
- gs_displays = new wxDisplayInfoArray();
+ // IDirectDraw object used to control this display, may be NULL
+ IDirectDraw2 *m_pDD2;
+
+ // DirectDraw GUID for this display, only valid when using DirectDraw
+ const GUID m_guid;
+
+
+ DECLARE_NO_COPY_CLASS(wxDisplayInfoDirectDraw)
+};
-#ifdef HAVE_DDRAW_H
- if ( !gs_useDirectX || !DoInitDirectX() )
+class wxDisplayImplDirectDraw : public wxDisplayImplWin32Base
+{
+public:
+ wxDisplayImplDirectDraw(unsigned n, wxDisplayInfo& info, IDirectDraw2 *pDD2)
+ : wxDisplayImplWin32Base(n, info),
+ m_pDD2(pDD2)
{
- // either we were told not to try to use DirectX or fall back to std
- // functions if DirectX method failed
- gs_useDirectX = false;
+ m_pDD2->AddRef();
+ }
- DoInitStdWindows();
+ virtual ~wxDisplayImplDirectDraw()
+ {
+ m_pDD2->Release();
}
-#else
- DoInitStdWindows();
-#endif
-}
-// convert a DEVMODE to our wxVideoMode
-wxVideoMode ConvertToVideoMode(const DEVMODE& dm)
-{
- // note that dmDisplayFrequency may be 0 or 1 meaning "standard one" and
- // although 0 is ok for us we don't want to return modes with 1hz refresh
- return wxVideoMode(dm.dmPelsWidth,
- dm.dmPelsHeight,
- dm.dmBitsPerPel,
- dm.dmDisplayFrequency > 1 ? dm.dmDisplayFrequency : 0);
-}
+ virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const;
+ virtual bool ChangeMode(const wxVideoMode& mode);
-#ifndef __WXWINCE__
-// emulation of ChangeDisplaySettingsEx() for Win95
-LONG WINAPI ChangeDisplaySettingsExForWin95(LPCTSTR WXUNUSED(lpszDeviceName),
- LPDEVMODE lpDevMode,
- HWND WXUNUSED(hwnd),
- DWORD dwFlags,
- LPVOID WXUNUSED(lParam))
-{
- return ::ChangeDisplaySettings(lpDevMode, dwFlags);
-}
-#endif // !__WXWINCE__
+private:
+ IDirectDraw2 *m_pDD2;
-// ----------------------------------------------------------------------------
-// wxDisplayModule
-// ----------------------------------------------------------------------------
+ DECLARE_NO_COPY_CLASS(wxDisplayImplDirectDraw)
+};
-void wxDisplayModule::OnExit()
+class wxDisplayFactoryDirectDraw : public wxDisplayFactoryWin32Base
{
- delete gs_displays;
-}
+public:
+ wxDisplayFactoryDirectDraw();
+ virtual ~wxDisplayFactoryDirectDraw();
-// ---------------------------------------------------------------------------
-// wxDisplay
-// ---------------------------------------------------------------------------
+ virtual wxDisplayImpl *CreateDisplay(unsigned n);
-/* static */
-void wxDisplay::UseDirectX(bool useDX)
-{
- wxCHECK_RET( !gs_displays, _T("it is too late to call UseDirectX") );
+private:
+ // callback used with DirectDrawEnumerateEx()
+ static BOOL WINAPI DDEnumExCallback(GUID *pGuid,
+ LPTSTR driverDescription,
+ LPTSTR driverName,
+ LPVOID lpContext,
+ HMONITOR hmon);
-#ifdef HAVE_DDRAW_H
- // DirectDrawEnumerateEx requires Win98 or Win2k anyway.
- if ( OsSupportsMultipleMonitors() ) gs_useDirectX = useDX;
-#endif
-}
+ // add a monitor description to m_displays array
+ void AddDisplay(const GUID& guid, HMONITOR hmon, LPTSTR name);
-// helper for GetFromPoint() and GetFromWindow()
-static int DisplayFromHMONITOR(HMONITOR hmon)
-{
- if ( hmon )
- {
- const size_t count = wxDisplay::GetCount();
- for ( size_t n = 0; n < count; n++ )
- {
- if ( hmon == (*gs_displays)[n].m_hmon )
- return n;
- }
- }
+ // ddraw.dll
+ wxDynamicLibrary m_dllDDraw;
- return wxNOT_FOUND;
-}
+ // dynamically resolved DirectDrawCreate()
+ DirectDrawCreate_t m_pfnDirectDrawCreate;
-/* static */
-size_t wxDisplayBase::GetCount()
-{
- if ( !OsSupportsMultipleMonitors() ) return 1;
+ DECLARE_NO_COPY_CLASS(wxDisplayFactoryDirectDraw)
+};
- InitDisplays();
+#endif // wxUSE_DIRECTDRAW
- //RN: FIXME: This is wrong - the display info array should reload after every call
- //to GetCount() - otherwise it will not be accurate.
- //The user can change the number of displays in display properties/settings
- //after GetCount or similar is called and really mess this up...
- //wxASSERT_MSG( gs_displays->GetCount() == (size_t)::GetSystemMetrics(SM_CMONITORS),
- // _T("So how many displays does this system have?") );
- return gs_displays->GetCount();
-}
+// ============================================================================
+// common classes implementation
+// ============================================================================
-/* static */
-int wxDisplayBase::GetFromPoint ( const wxPoint& pt )
+// ----------------------------------------------------------------------------
+// wxDisplay
+// ----------------------------------------------------------------------------
+
+/* static */ wxDisplayFactory *wxDisplay::CreateFactory()
{
- if ( !OsSupportsMultipleMonitors() )
+ // we have 2 implementations for modern Windows: one using standard Win32
+ // and another using DirectDraw, the choice between them is done using a
+ // system option
+
+#if wxUSE_DIRECTDRAW
+ if ( wxSystemOptions::GetOptionInt(_T("msw.display.directdraw")) )
{
- const wxSize size = wxGetDisplaySize();
- if (pt.x >= 0 && pt.x < size.GetWidth() &&
- pt.y >= 0 && pt.y < size.GetHeight())
- {
- return 0;
- }
- return wxNOT_FOUND;
+ wxDisplayFactoryDirectDraw *factoryDD = new wxDisplayFactoryDirectDraw;
+ if ( factoryDD->IsOk() )
+ return factoryDD;
+
+ delete factoryDD;
}
+#endif // wxUSE_DIRECTDRAW
+
+ wxDisplayFactoryMultimon *factoryMM = new wxDisplayFactoryMultimon;
+ if ( factoryMM->IsOk() )
+ return factoryMM;
+
+ delete factoryMM;
- POINT pt2;
- pt2.x = pt.x;
- pt2.y = pt.y;
- return DisplayFromHMONITOR(gs_MonitorFromPoint(pt2, MONITOR_DEFAULTTONULL));
+ // finally fall back to a stub implementation if all else failed (Win95?)
+ return new wxDisplayFactorySingle;
}
-/* static */
-int wxDisplayBase::GetFromWindow(wxWindow *window)
+// ----------------------------------------------------------------------------
+// wxDisplayInfo
+// ----------------------------------------------------------------------------
+
+void wxDisplayInfo::Initialize()
{
- if ( !OsSupportsMultipleMonitors() )
+ if ( m_flags == (DWORD)-1 )
{
- const wxRect r(window->GetRect());
- const wxSize size = wxGetDisplaySize();
- if (r.x < size.GetWidth() && r.x + r.width >= 0 &&
- r.y < size.GetHeight() && r.y + r.height >= 0)
+ WinStruct<MONITORINFOEX> monInfo;
+ if ( !gs_GetMonitorInfo(m_hmon, (LPMONITORINFO)&monInfo) )
{
- return 0;
+ wxLogLastError(_T("GetMonitorInfo"));
+ m_flags = 0;
+ return;
}
- return wxNOT_FOUND;
- }
- return DisplayFromHMONITOR
- (
- gs_MonitorFromWindow(GetHwndOf(window), MONITOR_DEFAULTTONULL)
- );
+ wxCopyRECTToRect(monInfo.rcMonitor, m_rect);
+ wxCopyRECTToRect(monInfo.rcWork, m_rectClient);
+ m_devName = monInfo.szDevice;
+ m_flags = monInfo.dwFlags;
+ }
}
// ----------------------------------------------------------------------------
-// wxDisplay ctor/dtor
+// wxDisplayImplWin32Base
// ----------------------------------------------------------------------------
-wxDisplay::wxDisplay ( size_t n )
- : wxDisplayBase ( n )
+wxRect wxDisplayImplWin32Base::GetGeometry() const
{
- if ( !OsSupportsMultipleMonitors() ) return;
+ if ( m_info.m_rect.IsEmpty() )
+ m_info.Initialize();
- // if we do this in ctor we won't have to call it from all the member
- // functions
- InitDisplays();
+ return m_info.m_rect;
+}
-#ifdef HAVE_DDRAW_H
- if ( gs_useDirectX )
- {
- wxDisplayInfo& dpyInfo = (*gs_displays)[n];
+wxRect wxDisplayImplWin32Base::GetClientArea() const
+{
+ if ( m_info.m_rectClient.IsEmpty() )
+ m_info.Initialize();
- LPDIRECTDRAW2& pDD2 = dpyInfo.m_pDD2;
- if ( !pDD2 )
- {
- if ( !gs_DirectDrawCreate )
- {
- // what to do??
- return;
- }
+ return m_info.m_rectClient;
+}
- IDirectDraw *pDD;
- HRESULT hr = (*gs_DirectDrawCreate)(&dpyInfo.m_guid, &pDD, NULL);
+wxString wxDisplayImplWin32Base::GetName() const
+{
+ if ( m_info.m_devName.empty() )
+ m_info.Initialize();
- if ( FAILED(hr) || !pDD )
- {
- // what to do??
- wxLogApiError(_T("DirectDrawCreate"), hr);
- }
- else // got IDirectDraw, we want IDirectDraw2
- {
- hr = pDD->QueryInterface(wxIID_IDirectDraw2, (void **)&pDD2);
- if ( FAILED(hr) || !pDD2 )
- {
- wxLogApiError(_T("IDirectDraw::QueryInterface(IDD2)"), hr);
- }
+ return m_info.m_devName;
+}
- pDD->Release();
- }
- }
- //else: DirectDraw object corresponding to our display already exists
-
- // increment its ref count to account for Release() in dtor
- //
- // NB: pDD2 will be only really Release()d when gs_displays is
- // destroyed which is ok as we don't want to recreate DD objects
- // all the time
- pDD2->AddRef();
- }
-#endif
+bool wxDisplayImplWin32Base::IsPrimary() const
+{
+ if ( m_info.m_flags == (DWORD)-1 )
+ m_info.Initialize();
+
+ return (m_info.m_flags & MONITORINFOF_PRIMARY) != 0;
}
-wxDisplay::~wxDisplay()
+wxVideoMode wxDisplayImplWin32Base::GetCurrentMode() const
{
-#ifdef HAVE_DDRAW_H
- if ( !OsSupportsMultipleMonitors() ) return;
+ wxVideoMode mode;
- wxDisplayInfo& dpyInfo = (*gs_displays)[m_index];
+ // The first parameter of EnumDisplaySettings() must be NULL under Win95
+ // according to MSDN. The version of GetName() we implement for Win95
+ // returns an empty string.
+ const wxString name = GetName();
+ const wxChar * const deviceName = name.empty()
+ ? (const wxChar*)NULL
+ : (const wxChar*)name.c_str();
- LPDIRECTDRAW2& pDD2 = dpyInfo.m_pDD2;
- if ( pDD2 )
+ DEVMODE dm;
+ dm.dmSize = sizeof(dm);
+ dm.dmDriverExtra = 0;
+ if ( !::EnumDisplaySettings(deviceName, ENUM_CURRENT_SETTINGS, &dm) )
{
- pDD2->Release();
+ wxLogLastError(_T("EnumDisplaySettings(ENUM_CURRENT_SETTINGS)"));
}
-#endif
+ else
+ {
+ mode = ConvertToVideoMode(dm);
+ }
+
+ return mode;
}
// ----------------------------------------------------------------------------
-// wxDisplay simple accessors
+// wxDisplayFactoryWin32Base
// ----------------------------------------------------------------------------
-bool wxDisplay::IsOk() const
-{
-#ifdef HAVE_DDRAW_H
- return m_index < GetCount() &&
- (!gs_useDirectX || (*gs_displays)[m_index].m_pDD2);
-#else
- return m_index < GetCount();
-#endif
-}
+int wxDisplayFactoryWin32Base::ms_supportsMultimon = -1;
-wxRect wxDisplay::GetGeometry() const
+wxDisplayFactoryWin32Base::wxDisplayFactoryWin32Base()
{
- if ( !OsSupportsMultipleMonitors() )
+ if ( ms_supportsMultimon == -1 )
{
- wxSize size = wxGetDisplaySize();
- return wxRect(0, 0, size.GetWidth(), size.GetHeight());
- }
+ ms_supportsMultimon = 0;
- wxDisplayInfo& dpyInfo = (*gs_displays)[m_index];
- wxRect& rect = dpyInfo.m_rect;
- if ( !rect.width )
- {
- MONITORINFO monInfo;
- wxZeroMemory(monInfo);
- monInfo.cbSize = sizeof(monInfo);
+ wxDynamicLibrary dllUser32(_T("user32.dll"), wxDL_VERBATIM | wxDL_QUIET);
- if ( !gs_GetMonitorInfo(dpyInfo.m_hmon, &monInfo) )
- {
- wxLogLastError(_T("GetMonitorInfo"));
- }
- else
- {
- wxCopyRECTToRect(monInfo.rcMonitor, rect);
- }
+ if ( (wxDL_INIT_FUNC(gs_, MonitorFromPoint, dllUser32)) == NULL ||
+ (wxDL_INIT_FUNC(gs_, MonitorFromWindow, dllUser32)) == NULL ||
+ (wxDL_INIT_FUNC_AW(gs_, GetMonitorInfo, dllUser32)) == NULL )
+ return;
+
+ ms_supportsMultimon = 1;
+
+ // we can safely let dllUser32 go out of scope, the DLL itself will
+ // still remain loaded as all Win32 programs use it
}
+}
- return rect;
+void wxDisplayFactoryWin32Base::Clear()
+{
+ WX_CLEAR_ARRAY(m_displays);
}
-wxString wxDisplay::GetName() const
+wxDisplayFactoryWin32Base::~wxDisplayFactoryWin32Base()
{
- if ( !OsSupportsMultipleMonitors() ) return wxT("");
+ Clear();
+}
- wxDisplayInfo& dpyInfo = (*gs_displays)[m_index];
- if ( dpyInfo.m_devName.empty() )
+// helper for GetFromPoint() and GetFromWindow()
+int wxDisplayFactoryWin32Base::FindDisplayFromHMONITOR(HMONITOR hmon) const
+{
+ if ( hmon )
{
- MONITORINFOEX monInfo;
- wxZeroMemory(monInfo);
- monInfo.cbSize = sizeof(monInfo);
-
- // NB: Cast from MONITORINFOEX* to MONITORINFO* is done because
- // Mingw headers - unlike the ones from Microsoft's Platform SDK -
- // don't derive the former from the latter in C++ mode and so
- // the pointer's type is not converted implicitly.
- if ( !gs_GetMonitorInfo(dpyInfo.m_hmon, (LPMONITORINFO)&monInfo) )
- {
- wxLogLastError(_T("GetMonitorInfo"));
- }
- else
+ const size_t count = m_displays.size();
+ for ( size_t n = 0; n < count; n++ )
{
- dpyInfo.m_devName = monInfo.szDevice;
+ if ( hmon == m_displays[n]->m_hmon )
+ return n;
}
}
- return dpyInfo.m_devName;
+ return wxNOT_FOUND;
}
+int wxDisplayFactoryWin32Base::GetFromPoint(const wxPoint& pt)
+{
+ POINT pt2;
+ pt2.x = pt.x;
+ pt2.y = pt.y;
+
+ return FindDisplayFromHMONITOR(gs_MonitorFromPoint(pt2,
+ MONITOR_DEFAULTTONULL));
+}
+
+int wxDisplayFactoryWin32Base::GetFromWindow(const wxWindow *window)
+{
+ return FindDisplayFromHMONITOR(gs_MonitorFromWindow(GetHwndOf(window),
+ MONITOR_DEFAULTTONULL));
+}
+
+// ============================================================================
+// wxDisplay implementation using Win32 multimon API
+// ============================================================================
+
// ----------------------------------------------------------------------------
-// determine if this is the primary display
+// wxDisplayFactoryMultimon initialization
// ----------------------------------------------------------------------------
-bool wxDisplay::IsPrimary() const
+wxDisplayFactoryMultimon::wxDisplayFactoryMultimon()
{
- if ( !OsSupportsMultipleMonitors() ) return true;
-
- wxDisplayInfo& dpyInfo = (*gs_displays)[m_index];
+ if ( !ms_supportsMultimon )
+ return;
- MONITORINFOEX monInfo;
- wxZeroMemory(monInfo);
- monInfo.cbSize = sizeof(monInfo);
+ // look up EnumDisplayMonitors() which we don't need with DirectDraw
+ // implementation
+ EnumDisplayMonitors_t pfnEnumDisplayMonitors;
+ {
+ wxDynamicLibrary dllUser32(_T("user32.dll"), wxDL_VERBATIM | wxDL_QUIET);
+ if ( (wxDL_INIT_FUNC(pfn, EnumDisplayMonitors, dllUser32)) == NULL )
+ return;
+ }
- // NB: Cast from MONITORINFOEX* to MONITORINFO* is done because
- // Mingw headers - unlike the ones from Microsoft's Platform SDK -
- // don't derive the former from the latter in C++ mode and so
- // the pointer's type is not converted implicitly.
- if ( !gs_GetMonitorInfo(dpyInfo.m_hmon, (LPMONITORINFO)&monInfo) )
+ // enumerate all displays
+ if ( !pfnEnumDisplayMonitors(NULL, NULL, MultimonEnumProc, (LPARAM)this) )
{
- wxLogLastError(_T("GetMonitorInfo"));
+ wxLogLastError(wxT("EnumDisplayMonitors"));
}
+}
+
+/* static */
+BOOL CALLBACK
+wxDisplayFactoryMultimon::MultimonEnumProc(
+ HMONITOR hMonitor, // handle to display monitor
+ HDC WXUNUSED(hdcMonitor), // handle to monitor-appropriate device context
+ LPRECT lprcMonitor, // pointer to monitor intersection rectangle
+ LPARAM dwData // data passed from EnumDisplayMonitors (this)
+)
+{
+ wxDisplayFactoryMultimon *const self = (wxDisplayFactoryMultimon *)dwData;
+ self->AddDisplay(hMonitor, lprcMonitor);
- return (monInfo.dwFlags & MONITORINFOF_PRIMARY) == MONITORINFOF_PRIMARY;
+ // continue the enumeration
+ return TRUE;
}
// ----------------------------------------------------------------------------
-// video modes enumeration
+// wxDisplayFactoryMultimon helper functions
// ----------------------------------------------------------------------------
-#ifdef HAVE_DDRAW_H
-wxArrayVideoModes
-wxDisplay::DoGetModesDirectX(const wxVideoMode& WXUNUSED(modeMatch)) const
+void wxDisplayFactoryMultimon::AddDisplay(HMONITOR hMonitor, LPRECT lprcMonitor)
{
- wxArrayVideoModes modes;
+ wxDisplayInfo *info = new wxDisplayInfo(hMonitor);
- IDirectDraw2 *pDD = (*gs_displays)[m_index].m_pDD2;
+ // we also store the display geometry
+ info->m_rect = wxRect(lprcMonitor->left, lprcMonitor->top,
+ lprcMonitor->right - lprcMonitor->left,
+ lprcMonitor->bottom - lprcMonitor->top);
- if ( pDD )
- {
- HRESULT hr = pDD->EnumDisplayModes
- (
- DDEDM_REFRESHRATES,
- NULL, // all modes (TODO: use modeMatch!)
- &modes, // callback parameter
- wxDDEnumModesCallback
- );
+ // now add this monitor to the array
+ m_displays.Add(info);
+}
- if ( FAILED(hr) )
- {
- wxLogApiError(_T("IDirectDraw::EnumDisplayModes"), hr);
- }
- }
+// ----------------------------------------------------------------------------
+// wxDisplayFactoryMultimon inherited pure virtuals implementation
+// ----------------------------------------------------------------------------
- return modes;
+wxDisplayImpl *wxDisplayFactoryMultimon::CreateDisplay(unsigned n)
+{
+ wxCHECK_MSG( n < m_displays.size(), NULL, _T("invalid display index") );
+
+ return new wxDisplayImplMultimon(n, *(m_displays[n]));
}
-#endif
+
+// ----------------------------------------------------------------------------
+// wxDisplayImplMultimon implementation
+// ----------------------------------------------------------------------------
wxArrayVideoModes
-wxDisplay::DoGetModesWindows(const wxVideoMode& modeMatch) const
+wxDisplayImplMultimon::GetModes(const wxVideoMode& modeMatch) const
{
wxArrayVideoModes modes;
// according to MSDN. The version of GetName() we implement for Win95
// returns an empty string.
const wxString name = GetName();
- const wxChar * const deviceName = name.empty() ? NULL : name.c_str();
+ const wxChar * const deviceName = name.empty()
+ ? (const wxChar*)NULL
+ : (const wxChar*)name.c_str();
DEVMODE dm;
dm.dmSize = sizeof(dm);
return modes;
}
-wxArrayVideoModes wxDisplay::GetModes(const wxVideoMode& modeMatch) const
-{
-#ifdef HAVE_DDRAW_H
- return gs_useDirectX ? DoGetModesDirectX(modeMatch)
- : DoGetModesWindows(modeMatch);
-#else
- return DoGetModesWindows(modeMatch);
-#endif
-}
-
-wxVideoMode wxDisplay::GetCurrentMode() const
+bool wxDisplayImplMultimon::ChangeMode(const wxVideoMode& mode)
{
- wxVideoMode mode;
-
- // The first parameter of EnumDisplaySettings() must be NULL under Win95
- // according to MSDN. The version of GetName() we implement for Win95
- // returns an empty string.
- const wxString name = GetName();
- const wxChar * const deviceName = name.empty() ? NULL : name.c_str();
-
+ // prepare ChangeDisplaySettingsEx() parameters
DEVMODE dm;
- dm.dmSize = sizeof(dm);
- dm.dmDriverExtra = 0;
- if ( !::EnumDisplaySettings(deviceName, ENUM_CURRENT_SETTINGS, &dm) )
- {
- wxLogLastError(_T("EnumDisplaySettings(ENUM_CURRENT_SETTINGS)"));
- }
- else
- {
- mode = ConvertToVideoMode(dm);
- }
-
- return mode;
-}
-
-// ----------------------------------------------------------------------------
-// video mode switching
-// ----------------------------------------------------------------------------
-
-#ifdef HAVE_DDRAW_H
-bool wxDisplay::DoChangeModeDirectX(const wxVideoMode& mode)
-{
- IDirectDraw2 *pDD = (*gs_displays)[m_index].m_pDD2;
- if ( !pDD )
- return false;
-
- wxWindow *winTop = wxTheApp->GetTopWindow();
- wxCHECK_MSG( winTop, false, _T("top level window required for DirectX") );
-
- HRESULT hr = pDD->SetCooperativeLevel
- (
- GetHwndOf(winTop),
- DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN
- );
- if ( FAILED(hr) )
- {
- wxLogApiError(_T("IDirectDraw::SetCooperativeLevel"), hr);
-
- return false;
- }
-
- hr = pDD->SetDisplayMode(mode.w, mode.h, mode.bpp, mode.refresh, 0);
- if ( FAILED(hr) )
- {
- wxLogApiError(_T("IDirectDraw::SetDisplayMode"), hr);
+ DEVMODE *pDevMode;
- return false;
- }
-
-
- return true;
-}
-#endif
-
-bool wxDisplay::DoChangeModeWindows(const wxVideoMode& mode)
-{
- // prepare ChangeDisplaySettingsEx() parameters
- DEVMODE dm,
- *pDevMode;
int flags;
if ( mode == wxDefaultVideoMode )
static ChangeDisplaySettingsEx_t pfnChangeDisplaySettingsEx = NULL;
if ( !pfnChangeDisplaySettingsEx )
{
- wxDynamicLibrary dllUser32(_T("user32.dll"));
+ wxDynamicLibrary dllUser32(_T("user32.dll"), wxDL_VERBATIM | wxDL_QUIET);
if ( dllUser32.IsLoaded() )
{
- pfnChangeDisplaySettingsEx = (ChangeDisplaySettingsEx_t)
- dllUser32.GetSymbol(WINFUNC(ChangeDisplaySettingsEx));
+ wxDL_INIT_FUNC_AW(pfn, ChangeDisplaySettingsEx, dllUser32);
}
//else: huh, no user32.dll??
// do change the mode
switch ( pfnChangeDisplaySettingsEx
(
- GetName(), // display name
- pDevMode, // dev mode or NULL to reset
- NULL, // reserved
+ GetName().wx_str(), // display name
+ pDevMode, // dev mode or NULL to reset
+ NULL, // reserved
flags,
- NULL // pointer to video parameters (not used)
+ NULL // pointer to video parameters (not used)
) )
{
case DISP_CHANGE_SUCCESSFUL:
return false;
}
-bool wxDisplay::ChangeMode(const wxVideoMode& mode)
+
+// ============================================================================
+// DirectDraw-based wxDisplay implementation
+// ============================================================================
+
+#if wxUSE_DIRECTDRAW
+
+// ----------------------------------------------------------------------------
+// wxDisplayFactoryDirectDraw initialization
+// ----------------------------------------------------------------------------
+
+wxDisplayFactoryDirectDraw::wxDisplayFactoryDirectDraw()
{
-#ifdef HAVE_DDRAW_H
- return gs_useDirectX ? DoChangeModeDirectX(mode)
- : DoChangeModeWindows(mode);
-#else
- return DoChangeModeWindows(mode);
-#endif
+ if ( !ms_supportsMultimon )
+ return;
+
+ m_dllDDraw.Load(_T("ddraw.dll"), wxDL_VERBATIM | wxDL_QUIET);
+
+ if ( !m_dllDDraw.IsLoaded() )
+ return;
+
+ DirectDrawEnumerateEx_t
+ wxDL_INIT_FUNC_AW(pfn, DirectDrawEnumerateEx, m_dllDDraw);
+ if ( !pfnDirectDrawEnumerateEx )
+ return;
+
+ // we can't continue without DirectDrawCreate() later, so resolve it right
+ // now and fail the initialization if it's not available
+ if ( !wxDL_INIT_FUNC(m_pfn, DirectDrawCreate, m_dllDDraw) )
+ return;
+
+ if ( (*pfnDirectDrawEnumerateEx)(DDEnumExCallback,
+ this,
+ DDENUM_ATTACHEDSECONDARYDEVICES) != DD_OK )
+ {
+ wxLogLastError(_T("DirectDrawEnumerateEx"));
+ }
}
-#endif // wxUSE_DISPLAY
+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
+
+#endif // wxUSE_DISPLAY
projects / wxWidgets.git / blobdiff