dlls/gdi32/driver.c - wine - Git at Google

 /*
  * Graphics driver management functions
  *
  * Copyright 1994 Bob Amstadt
  * Copyright 1996, 2001 Alexandre Julliard
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */

 #include "config.h"
 #include "wine/port.h"

 #include <stdarg.h>
 #include <string.h>
 #include <stdio.h>
 #include "windef.h"
 #include "winbase.h"
 #include "winreg.h"
 #include "ddrawgdi.h"
 #include "wine/winbase16.h"

 #include "gdi_private.h"
 #include "wine/unicode.h"
 #include "wine/list.h"
 #include "wine/debug.h"

 WINE_DEFAULT_DEBUG_CHANNEL(driver);

 struct graphics_driver
 {
     struct list             entry;
     HMODULE                 module;  /* module handle */
     DC_FUNCTIONS            funcs;
 };

 static struct list drivers = LIST_INIT( drivers );
 static struct graphics_driver *display_driver;

 static CRITICAL_SECTION driver_section;
 static CRITICAL_SECTION_DEBUG critsect_debug =
 {
     0, 0, &driver_section,
     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
       0, 0, { (DWORD_PTR)(__FILE__ ": driver_section") }
 };
 static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };

 /**********************************************************************
  *	     create_driver
  *
  * Allocate and fill the driver structure for a given module.
  */
 static struct graphics_driver *create_driver( HMODULE module )
 {
     struct graphics_driver *driver;

     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
     driver->module = module;

     /* fill the function table */
     if (module)
     {
 #define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
         GET_FUNC(AbortDoc);
         GET_FUNC(AbortPath);
         GET_FUNC(AlphaBlend);
         GET_FUNC(AngleArc);
         GET_FUNC(Arc);
         GET_FUNC(ArcTo);
         GET_FUNC(BeginPath);
         GET_FUNC(BitBlt);
         GET_FUNC(ChoosePixelFormat);
         GET_FUNC(Chord);
         GET_FUNC(CloseFigure);
         GET_FUNC(CreateBitmap);
         GET_FUNC(CreateDC);
         GET_FUNC(CreateDIBSection);
         GET_FUNC(DeleteBitmap);
         GET_FUNC(DeleteDC);
         GET_FUNC(DescribePixelFormat);
         GET_FUNC(DeviceCapabilities);
         GET_FUNC(Ellipse);
         GET_FUNC(EndDoc);
         GET_FUNC(EndPage);
         GET_FUNC(EndPath);
         GET_FUNC(EnumDeviceFonts);
         GET_FUNC(ExcludeClipRect);
         GET_FUNC(ExtDeviceMode);
         GET_FUNC(ExtEscape);
         GET_FUNC(ExtFloodFill);
         GET_FUNC(ExtSelectClipRgn);
         GET_FUNC(ExtTextOut);
         GET_FUNC(FillPath);
         GET_FUNC(FillRgn);
         GET_FUNC(FlattenPath);
         GET_FUNC(FrameRgn);
         GET_FUNC(GdiComment);
         GET_FUNC(GetBitmapBits);
         GET_FUNC(GetCharWidth);
         GET_FUNC(GetDIBColorTable);
         GET_FUNC(GetDIBits);
         GET_FUNC(GetDeviceCaps);
         GET_FUNC(GetDeviceGammaRamp);
         GET_FUNC(GetICMProfile);
         GET_FUNC(GetNearestColor);
         GET_FUNC(GetPixel);
         GET_FUNC(GetPixelFormat);
         GET_FUNC(GetSystemPaletteEntries);
         GET_FUNC(GetTextExtentExPoint);
         GET_FUNC(GetTextMetrics);
         GET_FUNC(IntersectClipRect);
         GET_FUNC(InvertRgn);
         GET_FUNC(LineTo);
         GET_FUNC(MoveTo);
         GET_FUNC(ModifyWorldTransform);
         GET_FUNC(OffsetClipRgn);
         GET_FUNC(OffsetViewportOrg);
         GET_FUNC(OffsetWindowOrg);
         GET_FUNC(PaintRgn);
         GET_FUNC(PatBlt);
         GET_FUNC(Pie);
         GET_FUNC(PolyBezier);
         GET_FUNC(PolyBezierTo);
         GET_FUNC(PolyDraw);
         GET_FUNC(PolyPolygon);
         GET_FUNC(PolyPolyline);
         GET_FUNC(Polygon);
         GET_FUNC(Polyline);
         GET_FUNC(PolylineTo);
         GET_FUNC(RealizeDefaultPalette);
         GET_FUNC(RealizePalette);
         GET_FUNC(Rectangle);
         GET_FUNC(ResetDC);
         GET_FUNC(RestoreDC);
         GET_FUNC(RoundRect);
         GET_FUNC(SaveDC);
         GET_FUNC(ScaleViewportExt);
         GET_FUNC(ScaleWindowExt);
         GET_FUNC(SelectBitmap);
         GET_FUNC(SelectBrush);
         GET_FUNC(SelectClipPath);
         GET_FUNC(SelectFont);
         GET_FUNC(SelectPalette);
         GET_FUNC(SelectPen);
         GET_FUNC(SetArcDirection);
         GET_FUNC(SetBitmapBits);
         GET_FUNC(SetBkColor);
         GET_FUNC(SetBkMode);
         GET_FUNC(SetDCBrushColor);
         GET_FUNC(SetDCPenColor);
         GET_FUNC(SetDIBColorTable);
         GET_FUNC(SetDIBits);
         GET_FUNC(SetDIBitsToDevice);
         GET_FUNC(SetDeviceClipping);
         GET_FUNC(SetDeviceGammaRamp);
         GET_FUNC(SetMapMode);
         GET_FUNC(SetMapperFlags);
         GET_FUNC(SetPixel);
         GET_FUNC(SetPixelFormat);
         GET_FUNC(SetPolyFillMode);
         GET_FUNC(SetROP2);
         GET_FUNC(SetRelAbs);
         GET_FUNC(SetStretchBltMode);
         GET_FUNC(SetTextAlign);
         GET_FUNC(SetTextCharacterExtra);
         GET_FUNC(SetTextColor);
         GET_FUNC(SetTextJustification);
         GET_FUNC(SetViewportExt);
         GET_FUNC(SetViewportOrg);
         GET_FUNC(SetWindowExt);
         GET_FUNC(SetWindowOrg);
         GET_FUNC(SetWorldTransform);
         GET_FUNC(StartDoc);
         GET_FUNC(StartPage);
         GET_FUNC(StretchBlt);
         GET_FUNC(StretchDIBits);
         GET_FUNC(StrokeAndFillPath);
         GET_FUNC(StrokePath);
         GET_FUNC(SwapBuffers);
         GET_FUNC(UnrealizePalette);
         GET_FUNC(WidenPath);

         /* OpenGL32 */
         GET_FUNC(wglCreateContext);
         GET_FUNC(wglCreateContextAttribsARB);
         GET_FUNC(wglDeleteContext);
         GET_FUNC(wglGetProcAddress);
         GET_FUNC(wglGetPbufferDCARB);
         GET_FUNC(wglMakeContextCurrentARB);
         GET_FUNC(wglMakeCurrent);
         GET_FUNC(wglSetPixelFormatWINE);
         GET_FUNC(wglShareLists);
         GET_FUNC(wglUseFontBitmapsA);
         GET_FUNC(wglUseFontBitmapsW);
 #undef GET_FUNC
     }
     else memset( &driver->funcs, 0, sizeof(driver->funcs) );

     return driver;
 }


 /**********************************************************************
  *	     DRIVER_get_display_driver
  *
  * Special case for loading the display driver: get the name from the config file
  */
 const DC_FUNCTIONS *DRIVER_get_display_driver(void)
 {
     struct graphics_driver *driver;
     char buffer[MAX_PATH], libname[32], *name, *next;
     HMODULE module = 0;
     HKEY hkey;

     if (display_driver) return &display_driver->funcs;  /* already loaded */

     strcpy( buffer, "x11" );  /* default value */
     /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
     if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
     {
         DWORD type, count = sizeof(buffer);
         RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
         RegCloseKey( hkey );
     }

     name = buffer;
     while (name)
     {
         next = strchr( name, ',' );
         if (next) *next++ = 0;

         snprintf( libname, sizeof(libname), "wine%s.drv", name );
         if ((module = LoadLibraryA( libname )) != 0) break;
         name = next;
     }

     if (!(driver = create_driver( module )))
     {
         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
         FreeLibrary( module );
         ExitProcess(1);
     }
     if (InterlockedCompareExchangePointer( (void **)&display_driver, driver, NULL ))
     {
         /* somebody beat us to it */
         FreeLibrary( driver->module );
         HeapFree( GetProcessHeap(), 0, driver );
     }
     return &display_driver->funcs;
 }


 /**********************************************************************
  *	     DRIVER_load_driver
  */
 const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name )
 {
     HMODULE module;
     struct graphics_driver *driver, *new_driver;
     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};

     /* display driver is a special case */
     if (!strcmpiW( name, displayW ) || !strcmpiW( name, display1W )) return DRIVER_get_display_driver();

     if ((module = GetModuleHandleW( name )))
     {
         if (display_driver && display_driver->module == module) return &display_driver->funcs;
         EnterCriticalSection( &driver_section );
         LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
         {
             if (driver->module == module) goto done;
         }
         LeaveCriticalSection( &driver_section );
     }

     if (!(module = LoadLibraryW( name ))) return NULL;

     if (!(new_driver = create_driver( module )))
     {
         FreeLibrary( module );
         return NULL;
     }

     /* check if someone else added it in the meantime */
     EnterCriticalSection( &driver_section );
     LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
     {
         if (driver->module != module) continue;
         FreeLibrary( module );
         HeapFree( GetProcessHeap(), 0, new_driver );
         goto done;
     }
     driver = new_driver;
     list_add_head( &drivers, &driver->entry );
     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 done:
     LeaveCriticalSection( &driver_section );
     return &driver->funcs;
 }


 /*****************************************************************************
  *      DRIVER_GetDriverName
  *
  */
 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 {
     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
     static const WCHAR empty_strW[] = { 0 };
     WCHAR *p;

     /* display is a special case */
     if (!strcmpiW( device, displayW ) ||
         !strcmpiW( device, display1W ))
     {
         lstrcpynW( driver, displayW, size );
         return TRUE;
     }

     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
     if(!size) {
         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
         return FALSE;
     }
     p = strchrW(driver, ',');
     if(!p)
     {
         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
         return FALSE;
     }
     *p = 0;
     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
     return TRUE;
 }


 /***********************************************************************
  *           GdiConvertToDevmodeW    (GDI32.@)
  */
 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 {
     DEVMODEW *dmW;
     WORD dmW_size, dmA_size;

     dmA_size = dmA->dmSize;

     /* this is the minimal dmSize that XP accepts */
     if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
         return NULL;

     if (dmA_size > sizeof(DEVMODEA))
         dmA_size = sizeof(DEVMODEA);

     dmW_size = dmA_size + CCHDEVICENAME;
     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
         dmW_size += CCHFORMNAME;

     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
     if (!dmW) return NULL;

     MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
                                    dmW->dmDeviceName, CCHDEVICENAME);
     /* copy slightly more, to avoid long computations */
     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);

     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
     {
         if (dmA->dmFields & DM_FORMNAME)
             MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
                                        dmW->dmFormName, CCHFORMNAME);
         else
             dmW->dmFormName[0] = 0;

         if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
     }

     if (dmA->dmDriverExtra)
         memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA_size, dmA->dmDriverExtra);

     dmW->dmSize = dmW_size;

     return dmW;
 }


 /*****************************************************************************
  *      @ [GDI32.100]
  *
  * This should thunk to 16-bit and simply call the proc with the given args.
  */
 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 {
     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
     return -1;
 }

 /*****************************************************************************
  *      @ [GDI32.101]
  *
  * This should load the correct driver for lpszDevice and calls this driver's
  * ExtDeviceModePropSheet proc.
  *
  * Note: The driver calls a callback routine for each property sheet page; these
  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
  * The layout of this structure is:
  *
  * struct
  * {
  *   DWORD  nPages;
  *   DWORD  unknown;
  *   HPROPSHEETPAGE  pages[10];
  * };
  */
 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 {
     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
     return -1;
 }

 /*****************************************************************************
  *      @ [GDI32.102]
  *
  * This should load the correct driver for lpszDevice and call this driver's
  * ExtDeviceMode proc.
  *
  * FIXME: convert ExtDeviceMode to unicode in the driver interface
  */
 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
                                     LPSTR lpszProfile, DWORD fwMode )
 {
     WCHAR deviceW[300];
     WCHAR bufW[300];
     char buf[300];
     HDC hdc;
     DC *dc;
     INT ret = -1;

     TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );

     if (!lpszDevice) return -1;
     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;

     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;

     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;

     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;

     if ((dc = get_dc_ptr( hdc )))
     {
         if (dc->funcs->pExtDeviceMode)
 	    ret = dc->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
                                              lpdmInput, lpszProfile, fwMode );
 	release_dc_ptr( dc );
     }
     DeleteDC( hdc );
     return ret;
 }

 /****************************************************************************
  *      @ [GDI32.103]
  *
  * This should load the correct driver for lpszDevice and calls this driver's
  * AdvancedSetupDialog proc.
  */
 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
                                           LPDEVMODEA devin, LPDEVMODEA devout )
 {
     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
     return -1;
 }

 /*****************************************************************************
  *      @ [GDI32.104]
  *
  * This should load the correct driver for lpszDevice and calls this driver's
  * DeviceCapabilities proc.
  *
  * FIXME: convert DeviceCapabilities to unicode in the driver interface
  */
 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
                                            WORD fwCapability, LPSTR lpszOutput,
                                            LPDEVMODEA lpdm )
 {
     WCHAR deviceW[300];
     WCHAR bufW[300];
     char buf[300];
     HDC hdc;
     DC *dc;
     INT ret = -1;

     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );

     if (!lpszDevice) return -1;
     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;

     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;

     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;

     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;

     if ((dc = get_dc_ptr( hdc )))
     {
         if (dc->funcs->pDeviceCapabilities)
             ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
                                                   fwCapability, lpszOutput, lpdm );
         release_dc_ptr( dc );
     }
     DeleteDC( hdc );
     return ret;
 }


 /************************************************************************
  *             Escape  [GDI32.@]
  */
 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
 {
     INT ret;
     POINT *pt;

     switch (escape)
     {
     case ABORTDOC:
         return AbortDoc( hdc );

     case ENDDOC:
         return EndDoc( hdc );

     case GETPHYSPAGESIZE:
         pt = out_data;
         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
         return 1;

     case GETPRINTINGOFFSET:
         pt = out_data;
         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
         return 1;

     case GETSCALINGFACTOR:
         pt = out_data;
         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
         return 1;

     case NEWFRAME:
         return EndPage( hdc );

     case SETABORTPROC:
         return SetAbortProc( hdc, (ABORTPROC)in_data );

     case STARTDOC:
         {
             DOCINFOA doc;
             char *name = NULL;

             /* in_data may not be 0 terminated so we must copy it */
             if (in_data)
             {
                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
                 memcpy( name, in_data, in_count );
                 name[in_count] = 0;
             }
             /* out_data is actually a pointer to the DocInfo structure and used as
              * a second input parameter */
             if (out_data) doc = *(DOCINFOA *)out_data;
             else
             {
                 doc.cbSize = sizeof(doc);
                 doc.lpszOutput = NULL;
                 doc.lpszDatatype = NULL;
                 doc.fwType = 0;
             }
             doc.lpszDocName = name;
             ret = StartDocA( hdc, &doc );
             HeapFree( GetProcessHeap(), 0, name );
             if (ret > 0) ret = StartPage( hdc );
             return ret;
         }

     case QUERYESCSUPPORT:
         {
             const INT *ptr = (const INT *)in_data;
             if (in_count < sizeof(INT)) return 0;
             switch(*ptr)
             {
             case ABORTDOC:
             case ENDDOC:
             case GETPHYSPAGESIZE:
             case GETPRINTINGOFFSET:
             case GETSCALINGFACTOR:
             case NEWFRAME:
             case QUERYESCSUPPORT:
             case SETABORTPROC:
             case STARTDOC:
                 return TRUE;
             }
             break;
         }
     }

     /* if not handled internally, pass it to the driver */
     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
 }


 /******************************************************************************
  *		ExtEscape	[GDI32.@]
  *
  * Access capabilities of a particular device that are not available through GDI.
  *
  * PARAMS
  *    hdc         [I] Handle to device context
  *    nEscape     [I] Escape function
  *    cbInput     [I] Number of bytes in input structure
  *    lpszInData  [I] Pointer to input structure
  *    cbOutput    [I] Number of bytes in output structure
  *    lpszOutData [O] Pointer to output structure
  *
  * RETURNS
  *    Success: >0
  *    Not implemented: 0
  *    Failure: <0
  */
 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
                       INT cbOutput, LPSTR lpszOutData )
 {
     INT ret = 0;
     DC * dc = get_dc_ptr( hdc );
     if (dc)
     {
         if (dc->funcs->pExtEscape)
             ret = dc->funcs->pExtEscape( dc->physDev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
         release_dc_ptr( dc );
     }
     return ret;
 }


 /*******************************************************************
  *      DrawEscape [GDI32.@]
  *
  *
  */
 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
 {
     FIXME("DrawEscape, stub\n");
     return 0;
 }

 /*******************************************************************
  *      NamedEscape [GDI32.@]
  */
 INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
                         INT cbOutput, LPSTR lpszOutData )
 {
     FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
           hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
           lpszOutData);
     return 0;
 }

 /*******************************************************************
  *      DdQueryDisplaySettingsUniqueness [GDI32.@]
  *      GdiEntry13                       [GDI32.@]
  */
 ULONG WINAPI DdQueryDisplaySettingsUniqueness(VOID)
 {
     static int warn_once;

     if (!warn_once++)
         FIXME("stub\n");
     return 0;
 }
	/*
	* Graphics driver management functions
	*
	* Copyright 1994 Bob Amstadt
	* Copyright 1996, 2001 Alexandre Julliard
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
	*/

	#include "config.h"
	#include "wine/port.h"

	#include <stdarg.h>
	#include <string.h>
	#include <stdio.h>
	#include "windef.h"
	#include "winbase.h"
	#include "winreg.h"
	#include "ddrawgdi.h"
	#include "wine/winbase16.h"

	#include "gdi_private.h"
	#include "wine/unicode.h"
	#include "wine/list.h"
	#include "wine/debug.h"

	WINE_DEFAULT_DEBUG_CHANNEL(driver);

	struct graphics_driver
	{
	struct list entry;
	HMODULE module; /* module handle */
	DC_FUNCTIONS funcs;
	};

	static struct list drivers = LIST_INIT( drivers );
	static struct graphics_driver *display_driver;

	static CRITICAL_SECTION driver_section;
	static CRITICAL_SECTION_DEBUG critsect_debug =
	{
	0, 0, &driver_section,
	{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
	0, 0, { (DWORD_PTR)(__FILE__ ": driver_section") }
	};
	static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };

	/**********************************************************************
	* create_driver
	*
	* Allocate and fill the driver structure for a given module.
	*/
	static struct graphics_driver *create_driver( HMODULE module )
	{
	struct graphics_driver *driver;

	if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
	driver->module = module;

	/* fill the function table */
	if (module)
	{
	#define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
	GET_FUNC(AbortDoc);
	GET_FUNC(AbortPath);
	GET_FUNC(AlphaBlend);
	GET_FUNC(AngleArc);
	GET_FUNC(Arc);
	GET_FUNC(ArcTo);
	GET_FUNC(BeginPath);
	GET_FUNC(BitBlt);
	GET_FUNC(ChoosePixelFormat);
	GET_FUNC(Chord);
	GET_FUNC(CloseFigure);
	GET_FUNC(CreateBitmap);
	GET_FUNC(CreateDC);
	GET_FUNC(CreateDIBSection);
	GET_FUNC(DeleteBitmap);
	GET_FUNC(DeleteDC);
	GET_FUNC(DescribePixelFormat);
	GET_FUNC(DeviceCapabilities);
	GET_FUNC(Ellipse);
	GET_FUNC(EndDoc);
	GET_FUNC(EndPage);
	GET_FUNC(EndPath);
	GET_FUNC(EnumDeviceFonts);
	GET_FUNC(ExcludeClipRect);
	GET_FUNC(ExtDeviceMode);
	GET_FUNC(ExtEscape);
	GET_FUNC(ExtFloodFill);
	GET_FUNC(ExtSelectClipRgn);
	GET_FUNC(ExtTextOut);
	GET_FUNC(FillPath);
	GET_FUNC(FillRgn);
	GET_FUNC(FlattenPath);
	GET_FUNC(FrameRgn);
	GET_FUNC(GdiComment);
	GET_FUNC(GetBitmapBits);
	GET_FUNC(GetCharWidth);
	GET_FUNC(GetDIBColorTable);
	GET_FUNC(GetDIBits);
	GET_FUNC(GetDeviceCaps);
	GET_FUNC(GetDeviceGammaRamp);
	GET_FUNC(GetICMProfile);
	GET_FUNC(GetNearestColor);
	GET_FUNC(GetPixel);
	GET_FUNC(GetPixelFormat);
	GET_FUNC(GetSystemPaletteEntries);
	GET_FUNC(GetTextExtentExPoint);
	GET_FUNC(GetTextMetrics);
	GET_FUNC(IntersectClipRect);
	GET_FUNC(InvertRgn);
	GET_FUNC(LineTo);
	GET_FUNC(MoveTo);
	GET_FUNC(ModifyWorldTransform);
	GET_FUNC(OffsetClipRgn);
	GET_FUNC(OffsetViewportOrg);
	GET_FUNC(OffsetWindowOrg);
	GET_FUNC(PaintRgn);
	GET_FUNC(PatBlt);
	GET_FUNC(Pie);
	GET_FUNC(PolyBezier);
	GET_FUNC(PolyBezierTo);
	GET_FUNC(PolyDraw);
	GET_FUNC(PolyPolygon);
	GET_FUNC(PolyPolyline);
	GET_FUNC(Polygon);
	GET_FUNC(Polyline);
	GET_FUNC(PolylineTo);
	GET_FUNC(RealizeDefaultPalette);
	GET_FUNC(RealizePalette);
	GET_FUNC(Rectangle);
	GET_FUNC(ResetDC);
	GET_FUNC(RestoreDC);
	GET_FUNC(RoundRect);
	GET_FUNC(SaveDC);
	GET_FUNC(ScaleViewportExt);
	GET_FUNC(ScaleWindowExt);
	GET_FUNC(SelectBitmap);
	GET_FUNC(SelectBrush);
	GET_FUNC(SelectClipPath);
	GET_FUNC(SelectFont);
	GET_FUNC(SelectPalette);
	GET_FUNC(SelectPen);
	GET_FUNC(SetArcDirection);
	GET_FUNC(SetBitmapBits);
	GET_FUNC(SetBkColor);
	GET_FUNC(SetBkMode);
	GET_FUNC(SetDCBrushColor);
	GET_FUNC(SetDCPenColor);
	GET_FUNC(SetDIBColorTable);
	GET_FUNC(SetDIBits);
	GET_FUNC(SetDIBitsToDevice);
	GET_FUNC(SetDeviceClipping);
	GET_FUNC(SetDeviceGammaRamp);
	GET_FUNC(SetMapMode);
	GET_FUNC(SetMapperFlags);
	GET_FUNC(SetPixel);
	GET_FUNC(SetPixelFormat);
	GET_FUNC(SetPolyFillMode);
	GET_FUNC(SetROP2);
	GET_FUNC(SetRelAbs);
	GET_FUNC(SetStretchBltMode);
	GET_FUNC(SetTextAlign);
	GET_FUNC(SetTextCharacterExtra);
	GET_FUNC(SetTextColor);
	GET_FUNC(SetTextJustification);
	GET_FUNC(SetViewportExt);
	GET_FUNC(SetViewportOrg);
	GET_FUNC(SetWindowExt);
	GET_FUNC(SetWindowOrg);
	GET_FUNC(SetWorldTransform);
	GET_FUNC(StartDoc);
	GET_FUNC(StartPage);
	GET_FUNC(StretchBlt);
	GET_FUNC(StretchDIBits);
	GET_FUNC(StrokeAndFillPath);
	GET_FUNC(StrokePath);
	GET_FUNC(SwapBuffers);
	GET_FUNC(UnrealizePalette);
	GET_FUNC(WidenPath);

	/* OpenGL32 */
	GET_FUNC(wglCreateContext);
	GET_FUNC(wglCreateContextAttribsARB);
	GET_FUNC(wglDeleteContext);
	GET_FUNC(wglGetProcAddress);
	GET_FUNC(wglGetPbufferDCARB);
	GET_FUNC(wglMakeContextCurrentARB);
	GET_FUNC(wglMakeCurrent);
	GET_FUNC(wglSetPixelFormatWINE);
	GET_FUNC(wglShareLists);
	GET_FUNC(wglUseFontBitmapsA);
	GET_FUNC(wglUseFontBitmapsW);
	#undef GET_FUNC
	}
	else memset( &driver->funcs, 0, sizeof(driver->funcs) );

	return driver;
	}


	/**********************************************************************
	* DRIVER_get_display_driver
	*
	* Special case for loading the display driver: get the name from the config file
	*/
	const DC_FUNCTIONS *DRIVER_get_display_driver(void)
	{
	struct graphics_driver *driver;
	char buffer[MAX_PATH], libname[32], name, next;
	HMODULE module = 0;
	HKEY hkey;

	if (display_driver) return &display_driver->funcs; /* already loaded */

	strcpy( buffer, "x11" ); /* default value */
	/* @@ Wine registry key: HKCU\Software\Wine\Drivers */
	if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
	{
	DWORD type, count = sizeof(buffer);
	RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
	RegCloseKey( hkey );
	}

	name = buffer;
	while (name)
	{
	next = strchr( name, ',' );
	if (next) *next++ = 0;

	snprintf( libname, sizeof(libname), "wine%s.drv", name );
	if ((module = LoadLibraryA( libname )) != 0) break;
	name = next;
	}

	if (!(driver = create_driver( module )))
	{
	MESSAGE( "Could not create graphics driver '%s'\n", buffer );
	FreeLibrary( module );
	ExitProcess(1);
	}
	if (InterlockedCompareExchangePointer( (void **)&display_driver, driver, NULL ))
	{
	/* somebody beat us to it */
	FreeLibrary( driver->module );
	HeapFree( GetProcessHeap(), 0, driver );
	}
	return &display_driver->funcs;
	}


	/**********************************************************************
	* DRIVER_load_driver
	*/
	const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name )
	{
	HMODULE module;
	struct graphics_driver driver, new_driver;
	static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
	static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};

	/* display driver is a special case */
	if (!strcmpiW( name, displayW ) \|\| !strcmpiW( name, display1W )) return DRIVER_get_display_driver();

	if ((module = GetModuleHandleW( name )))
	{
	if (display_driver && display_driver->module == module) return &display_driver->funcs;
	EnterCriticalSection( &driver_section );
	LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
	{
	if (driver->module == module) goto done;
	}
	LeaveCriticalSection( &driver_section );
	}

	if (!(module = LoadLibraryW( name ))) return NULL;

	if (!(new_driver = create_driver( module )))
	{
	FreeLibrary( module );
	return NULL;
	}

	/* check if someone else added it in the meantime */
	EnterCriticalSection( &driver_section );
	LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
	{
	if (driver->module != module) continue;
	FreeLibrary( module );
	HeapFree( GetProcessHeap(), 0, new_driver );
	goto done;
	}
	driver = new_driver;
	list_add_head( &drivers, &driver->entry );
	TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
	done:
	LeaveCriticalSection( &driver_section );
	return &driver->funcs;
	}


	/*****************************************************************************
	* DRIVER_GetDriverName
	*
	*/
	BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
	{
	static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
	static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
	static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
	static const WCHAR empty_strW[] = { 0 };
	WCHAR *p;

	/* display is a special case */
	if (!strcmpiW( device, displayW ) \|\|
	!strcmpiW( device, display1W ))
	{
	lstrcpynW( driver, displayW, size );
	return TRUE;
	}

	size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
	if(!size) {
	WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
	return FALSE;
	}
	p = strchrW(driver, ',');
	if(!p)
	{
	WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
	return FALSE;
	}
	*p = 0;
	TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
	return TRUE;
	}


	/***********************************************************************
	* GdiConvertToDevmodeW (GDI32.@)
	*/
	DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
	{
	DEVMODEW *dmW;
	WORD dmW_size, dmA_size;

	dmA_size = dmA->dmSize;

	/* this is the minimal dmSize that XP accepts */
	if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
	return NULL;

	if (dmA_size > sizeof(DEVMODEA))
	dmA_size = sizeof(DEVMODEA);

	dmW_size = dmA_size + CCHDEVICENAME;
	if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
	dmW_size += CCHFORMNAME;

	dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
	if (!dmW) return NULL;

	MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
	dmW->dmDeviceName, CCHDEVICENAME);
	/* copy slightly more, to avoid long computations */
	memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);

	if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
	{
	if (dmA->dmFields & DM_FORMNAME)
	MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
	dmW->dmFormName, CCHFORMNAME);
	else
	dmW->dmFormName[0] = 0;

	if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
	memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
	}

	if (dmA->dmDriverExtra)
	memcpy((char )dmW + dmW_size, (const char )dmA + dmA_size, dmA->dmDriverExtra);

	dmW->dmSize = dmW_size;

	return dmW;
	}


	/*****************************************************************************
	* @ [GDI32.100]
	*
	* This should thunk to 16-bit and simply call the proc with the given args.
	*/
	INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
	LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
	{
	FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
	return -1;
	}

	/*****************************************************************************
	* @ [GDI32.101]
	*
	* This should load the correct driver for lpszDevice and calls this driver's
	* ExtDeviceModePropSheet proc.
	*
	* Note: The driver calls a callback routine for each property sheet page; these
	* pages are supposed to be filled into the structure pointed to by lpPropSheet.
	* The layout of this structure is:
	*
	* struct
	* {
	* DWORD nPages;
	* DWORD unknown;
	* HPROPSHEETPAGE pages[10];
	* };
	*/
	INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
	LPCSTR lpszPort, LPVOID lpPropSheet )
	{
	FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
	return -1;
	}

	/*****************************************************************************
	* @ [GDI32.102]
	*
	* This should load the correct driver for lpszDevice and call this driver's
	* ExtDeviceMode proc.
	*
	* FIXME: convert ExtDeviceMode to unicode in the driver interface
	*/
	INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
	LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
	LPSTR lpszPort, LPDEVMODEA lpdmInput,
	LPSTR lpszProfile, DWORD fwMode )
	{
	WCHAR deviceW[300];
	WCHAR bufW[300];
	char buf[300];
	HDC hdc;
	DC *dc;
	INT ret = -1;

	TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
	hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );

	if (!lpszDevice) return -1;
	if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;

	if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;

	if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;

	if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;

	if ((dc = get_dc_ptr( hdc )))
	{
	if (dc->funcs->pExtDeviceMode)
	ret = dc->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
	lpdmInput, lpszProfile, fwMode );
	release_dc_ptr( dc );
	}
	DeleteDC( hdc );
	return ret;
	}

	/****************************************************************************
	* @ [GDI32.103]
	*
	* This should load the correct driver for lpszDevice and calls this driver's
	* AdvancedSetupDialog proc.
	*/
	INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
	LPDEVMODEA devin, LPDEVMODEA devout )
	{
	TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
	return -1;
	}

	/*****************************************************************************
	* @ [GDI32.104]
	*
	* This should load the correct driver for lpszDevice and calls this driver's
	* DeviceCapabilities proc.
	*
	* FIXME: convert DeviceCapabilities to unicode in the driver interface
	*/
	DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
	WORD fwCapability, LPSTR lpszOutput,
	LPDEVMODEA lpdm )
	{
	WCHAR deviceW[300];
	WCHAR bufW[300];
	char buf[300];
	HDC hdc;
	DC *dc;
	INT ret = -1;

	TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );

	if (!lpszDevice) return -1;
	if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;

	if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;

	if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;

	if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;

	if ((dc = get_dc_ptr( hdc )))
	{
	if (dc->funcs->pDeviceCapabilities)
	ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
	fwCapability, lpszOutput, lpdm );
	release_dc_ptr( dc );
	}
	DeleteDC( hdc );
	return ret;
	}


	/************************************************************************
	* Escape [GDI32.@]
	*/
	INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
	{
	INT ret;
	POINT *pt;

	switch (escape)
	{
	case ABORTDOC:
	return AbortDoc( hdc );

	case ENDDOC:
	return EndDoc( hdc );

	case GETPHYSPAGESIZE:
	pt = out_data;
	pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
	pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
	return 1;

	case GETPRINTINGOFFSET:
	pt = out_data;
	pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
	pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
	return 1;

	case GETSCALINGFACTOR:
	pt = out_data;
	pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
	pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
	return 1;

	case NEWFRAME:
	return EndPage( hdc );

	case SETABORTPROC:
	return SetAbortProc( hdc, (ABORTPROC)in_data );

	case STARTDOC:
	{
	DOCINFOA doc;
	char *name = NULL;

	/* in_data may not be 0 terminated so we must copy it */
	if (in_data)
	{
	name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
	memcpy( name, in_data, in_count );
	name[in_count] = 0;
	}
	/* out_data is actually a pointer to the DocInfo structure and used as
	* a second input parameter */
	if (out_data) doc = (DOCINFOA )out_data;
	else
	{
	doc.cbSize = sizeof(doc);
	doc.lpszOutput = NULL;
	doc.lpszDatatype = NULL;
	doc.fwType = 0;
	}
	doc.lpszDocName = name;
	ret = StartDocA( hdc, &doc );
	HeapFree( GetProcessHeap(), 0, name );
	if (ret > 0) ret = StartPage( hdc );
	return ret;
	}

	case QUERYESCSUPPORT:
	{
	const INT ptr = (const INT )in_data;
	if (in_count < sizeof(INT)) return 0;
	switch(*ptr)
	{
	case ABORTDOC:
	case ENDDOC:
	case GETPHYSPAGESIZE:
	case GETPRINTINGOFFSET:
	case GETSCALINGFACTOR:
	case NEWFRAME:
	case QUERYESCSUPPORT:
	case SETABORTPROC:
	case STARTDOC:
	return TRUE;
	}
	break;
	}
	}

	/* if not handled internally, pass it to the driver */
	return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
	}


	/******************************************************************************
	* ExtEscape [GDI32.@]
	*
	* Access capabilities of a particular device that are not available through GDI.
	*
	* PARAMS
	* hdc [I] Handle to device context
	* nEscape [I] Escape function
	* cbInput [I] Number of bytes in input structure
	* lpszInData [I] Pointer to input structure
	* cbOutput [I] Number of bytes in output structure
	* lpszOutData [O] Pointer to output structure
	*
	* RETURNS
	* Success: >0
	* Not implemented: 0
	* Failure: <0
	*/
	INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
	INT cbOutput, LPSTR lpszOutData )
	{
	INT ret = 0;
	DC * dc = get_dc_ptr( hdc );
	if (dc)
	{
	if (dc->funcs->pExtEscape)
	ret = dc->funcs->pExtEscape( dc->physDev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
	release_dc_ptr( dc );
	}
	return ret;
	}


	/*******************************************************************
	* DrawEscape [GDI32.@]
	*
	*
	*/
	INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
	{
	FIXME("DrawEscape, stub\n");
	return 0;
	}

	/*******************************************************************
	* NamedEscape [GDI32.@]
	*/
	INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
	INT cbOutput, LPSTR lpszOutData )
	{
	FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
	hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
	lpszOutData);
	return 0;
	}

	/*******************************************************************
	* DdQueryDisplaySettingsUniqueness [GDI32.@]
	* GdiEntry13 [GDI32.@]
	*/
	ULONG WINAPI DdQueryDisplaySettingsUniqueness(VOID)
	{
	static int warn_once;

	if (!warn_once++)
	FIXME("stub\n");
	return 0;
	}