dlls/gdi32/driver.c

   1 /*
   2  * Graphics driver management functions
   3  *
   4  * Copyright 1994 Bob Amstadt
   5  * Copyright 1996, 2001 Alexandre Julliard
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdarg.h>
  26 #include <string.h>
  27 #include <stdio.h>
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winreg.h"
  31 #include "ddrawgdi.h"
  32 #include "wine/winbase16.h"
  33
  34 #include "gdi_private.h"
  35 #include "wine/unicode.h"
  36 #include "wine/list.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  40
  41 struct graphics_driver
  42 {
  43     struct list             entry;
  44     HMODULE                 module;  /* module handle */
  45     unsigned int            count;   /* reference count */
  46     DC_FUNCTIONS            funcs;
  47 };
  48
  49 static struct list drivers = LIST_INIT( drivers );
  50 static struct graphics_driver *display_driver;
  51
  52 static CRITICAL_SECTION driver_section;
  53 static CRITICAL_SECTION_DEBUG critsect_debug =
  54 {
  55     0, 0, &driver_section,
  56     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  57       0, 0, { (DWORD_PTR)(__FILE__ ": driver_section") }
  58 };
  59 static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  60
  61 /**********************************************************************
  62  *           create_driver
  63  *
  64  * Allocate and fill the driver structure for a given module.
  65  */
  66 static struct graphics_driver *create_driver( HMODULE module )
  67 {
  68     struct graphics_driver *driver;
  69
  70     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  71     driver->module = module;
  72     driver->count  = 1;
  73
  74     /* fill the function table */
  75     if (module)
  76     {
  77 #define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
  78         GET_FUNC(AbortDoc);
  79         GET_FUNC(AbortPath);
  80         GET_FUNC(AlphaBlend);
  81         GET_FUNC(AngleArc);
  82         GET_FUNC(Arc);
  83         GET_FUNC(ArcTo);
  84         GET_FUNC(BeginPath);
  85         GET_FUNC(BitBlt);
  86         GET_FUNC(ChoosePixelFormat);
  87         GET_FUNC(Chord);
  88         GET_FUNC(CloseFigure);
  89         GET_FUNC(CreateBitmap);
  90         GET_FUNC(CreateDC);
  91         GET_FUNC(CreateDIBSection);
  92         GET_FUNC(DeleteBitmap);
  93         GET_FUNC(DeleteDC);
  94         GET_FUNC(DescribePixelFormat);
  95         GET_FUNC(DeviceCapabilities);
  96         GET_FUNC(Ellipse);
  97         GET_FUNC(EndDoc);
  98         GET_FUNC(EndPage);
  99         GET_FUNC(EndPath);
 100         GET_FUNC(EnumDeviceFonts);
 101         GET_FUNC(ExcludeClipRect);
 102         GET_FUNC(ExtDeviceMode);
 103         GET_FUNC(ExtEscape);
 104         GET_FUNC(ExtFloodFill);
 105         GET_FUNC(ExtSelectClipRgn);
 106         GET_FUNC(ExtTextOut);
 107         GET_FUNC(FillPath);
 108         GET_FUNC(FillRgn);
 109         GET_FUNC(FlattenPath);
 110         GET_FUNC(FrameRgn);
 111         GET_FUNC(GdiComment);
 112         GET_FUNC(GetBitmapBits);
 113         GET_FUNC(GetCharWidth);
 114         GET_FUNC(GetDCOrgEx);
 115         GET_FUNC(GetDIBColorTable);
 116         GET_FUNC(GetDIBits);
 117         GET_FUNC(GetDeviceCaps);
 118         GET_FUNC(GetDeviceGammaRamp);
 119         GET_FUNC(GetICMProfile);
 120         GET_FUNC(GetNearestColor);
 121         GET_FUNC(GetPixel);
 122         GET_FUNC(GetPixelFormat);
 123         GET_FUNC(GetSystemPaletteEntries);
 124         GET_FUNC(GetTextExtentExPoint);
 125         GET_FUNC(GetTextMetrics);
 126         GET_FUNC(IntersectClipRect);
 127         GET_FUNC(InvertRgn);
 128         GET_FUNC(LineTo);
 129         GET_FUNC(MoveTo);
 130         GET_FUNC(ModifyWorldTransform);
 131         GET_FUNC(OffsetClipRgn);
 132         GET_FUNC(OffsetViewportOrg);
 133         GET_FUNC(OffsetWindowOrg);
 134         GET_FUNC(PaintRgn);
 135         GET_FUNC(PatBlt);
 136         GET_FUNC(Pie);
 137         GET_FUNC(PolyBezier);
 138         GET_FUNC(PolyBezierTo);
 139         GET_FUNC(PolyDraw);
 140         GET_FUNC(PolyPolygon);
 141         GET_FUNC(PolyPolyline);
 142         GET_FUNC(Polygon);
 143         GET_FUNC(Polyline);
 144         GET_FUNC(PolylineTo);
 145         GET_FUNC(RealizeDefaultPalette);
 146         GET_FUNC(RealizePalette);
 147         GET_FUNC(Rectangle);
 148         GET_FUNC(ResetDC);
 149         GET_FUNC(RestoreDC);
 150         GET_FUNC(RoundRect);
 151         GET_FUNC(SaveDC);
 152         GET_FUNC(ScaleViewportExt);
 153         GET_FUNC(ScaleWindowExt);
 154         GET_FUNC(SelectBitmap);
 155         GET_FUNC(SelectBrush);
 156         GET_FUNC(SelectClipPath);
 157         GET_FUNC(SelectFont);
 158         GET_FUNC(SelectPalette);
 159         GET_FUNC(SelectPen);
 160         GET_FUNC(SetArcDirection);
 161         GET_FUNC(SetBitmapBits);
 162         GET_FUNC(SetBkColor);
 163         GET_FUNC(SetBkMode);
 164         GET_FUNC(SetDCBrushColor);
 165         GET_FUNC(SetDCPenColor);
 166         GET_FUNC(SetDIBColorTable);
 167         GET_FUNC(SetDIBits);
 168         GET_FUNC(SetDIBitsToDevice);
 169         GET_FUNC(SetDeviceClipping);
 170         GET_FUNC(SetDeviceGammaRamp);
 171         GET_FUNC(SetMapMode);
 172         GET_FUNC(SetMapperFlags);
 173         GET_FUNC(SetPixel);
 174         GET_FUNC(SetPixelFormat);
 175         GET_FUNC(SetPolyFillMode);
 176         GET_FUNC(SetROP2);
 177         GET_FUNC(SetRelAbs);
 178         GET_FUNC(SetStretchBltMode);
 179         GET_FUNC(SetTextAlign);
 180         GET_FUNC(SetTextCharacterExtra);
 181         GET_FUNC(SetTextColor);
 182         GET_FUNC(SetTextJustification);
 183         GET_FUNC(SetViewportExt);
 184         GET_FUNC(SetViewportOrg);
 185         GET_FUNC(SetWindowExt);
 186         GET_FUNC(SetWindowOrg);
 187         GET_FUNC(SetWorldTransform);
 188         GET_FUNC(StartDoc);
 189         GET_FUNC(StartPage);
 190         GET_FUNC(StretchBlt);
 191         GET_FUNC(StretchDIBits);
 192         GET_FUNC(StrokeAndFillPath);
 193         GET_FUNC(StrokePath);
 194         GET_FUNC(SwapBuffers);
 195         GET_FUNC(UnrealizePalette);
 196         GET_FUNC(WidenPath);
 197
 198         /* OpenGL32 */
 199         GET_FUNC(wglCreateContext);
 200         GET_FUNC(wglCreateContextAttribsARB);
 201         GET_FUNC(wglDeleteContext);
 202         GET_FUNC(wglGetProcAddress);
 203         GET_FUNC(wglGetPbufferDCARB);
 204         GET_FUNC(wglMakeContextCurrentARB);
 205         GET_FUNC(wglMakeCurrent);
 206         GET_FUNC(wglSetPixelFormatWINE);
 207         GET_FUNC(wglShareLists);
 208         GET_FUNC(wglUseFontBitmapsA);
 209         GET_FUNC(wglUseFontBitmapsW);
 210 #undef GET_FUNC
 211     }
 212     else memset( &driver->funcs, 0, sizeof(driver->funcs) );
 213
 214     list_add_head( &drivers, &driver->entry );
 215     return driver;
 216 }
 217
 218
 219 /**********************************************************************
 220  *           load_display_driver
 221  *
 222  * Special case for loading the display driver: get the name from the config file
 223  */
 224 static struct graphics_driver *load_display_driver(void)
 225 {
 226     char buffer[MAX_PATH], libname[32], *name, *next;
 227     HMODULE module = 0;
 228     HKEY hkey;
 229
 230     if (display_driver)  /* already loaded */
 231     {
 232         display_driver->count++;
 233         return display_driver;
 234     }
 235
 236     strcpy( buffer, "x11" );  /* default value */
 237     /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
 238     if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
 239     {
 240         DWORD type, count = sizeof(buffer);
 241         RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
 242         RegCloseKey( hkey );
 243     }
 244
 245     name = buffer;
 246     while (name)
 247     {
 248         next = strchr( name, ',' );
 249         if (next) *next++ = 0;
 250
 251         snprintf( libname, sizeof(libname), "wine%s.drv", name );
 252         if ((module = LoadLibraryA( libname )) != 0) break;
 253         name = next;
 254     }
 255
 256     if (!(display_driver = create_driver( module )))
 257     {
 258         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 259         FreeLibrary( module );
 260         ExitProcess(1);
 261     }
 262
 263     display_driver->count++;  /* we don't want to free it */
 264     return display_driver;
 265 }
 266
 267
 268 /**********************************************************************
 269  *           DRIVER_load_driver
 270  */
 271 const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name )
 272 {
 273     HMODULE module;
 274     struct graphics_driver *driver;
 275     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 276     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 277
 278     EnterCriticalSection( &driver_section );
 279
 280     /* display driver is a special case */
 281     if (!strcmpiW( name, displayW ) ||
 282         !strcmpiW( name, display1W ))
 283     {
 284         driver = load_display_driver();
 285         LeaveCriticalSection( &driver_section );
 286         return &driver->funcs;
 287     }
 288
 289     if ((module = GetModuleHandleW( name )))
 290     {
 291         LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 292         {
 293             if (driver->module == module)
 294             {
 295                 driver->count++;
 296                 LeaveCriticalSection( &driver_section );
 297                 return &driver->funcs;
 298             }
 299         }
 300     }
 301
 302     if (!(module = LoadLibraryW( name )))
 303     {
 304         LeaveCriticalSection( &driver_section );
 305         return NULL;
 306     }
 307
 308     if (!(driver = create_driver( module )))
 309     {
 310         FreeLibrary( module );
 311         LeaveCriticalSection( &driver_section );
 312         return NULL;
 313     }
 314
 315     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 316     LeaveCriticalSection( &driver_section );
 317     return &driver->funcs;
 318 }
 319
 320
 321 /**********************************************************************
 322  *           DRIVER_get_driver
 323  *
 324  * Get a new copy of an existing driver.
 325  */
 326 const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs )
 327 {
 328     struct graphics_driver *driver;
 329
 330     EnterCriticalSection( &driver_section );
 331     LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 332         if (&driver->funcs == funcs) break;
 333     if (&driver->entry == &drivers) ERR( "driver not found, trouble ahead\n" );
 334     driver->count++;
 335     LeaveCriticalSection( &driver_section );
 336     return funcs;
 337 }
 338
 339
 340 /**********************************************************************
 341  *           DRIVER_release_driver
 342  *
 343  * Release a driver by decrementing ref count and freeing it if needed.
 344  */
 345 void DRIVER_release_driver( const DC_FUNCTIONS *funcs )
 346 {
 347     struct graphics_driver *driver;
 348
 349     EnterCriticalSection( &driver_section );
 350
 351     LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 352     {
 353         if (&driver->funcs != funcs) continue;
 354         if (--driver->count) break;
 355         list_remove( &driver->entry );
 356         if (driver == display_driver) display_driver = NULL;
 357         FreeLibrary( driver->module );
 358         HeapFree( GetProcessHeap(), 0, driver );
 359         break;
 360     }
 361     LeaveCriticalSection( &driver_section );
 362 }
 363
 364
 365 /*****************************************************************************
 366  *      DRIVER_GetDriverName
 367  *
 368  */
 369 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 370 {
 371     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 372     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 373     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 374     static const WCHAR empty_strW[] = { 0 };
 375     WCHAR *p;
 376
 377     /* display is a special case */
 378     if (!strcmpiW( device, displayW ) ||
 379         !strcmpiW( device, display1W ))
 380     {
 381         lstrcpynW( driver, displayW, size );
 382         return TRUE;
 383     }
 384
 385     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 386     if(!size) {
 387         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 388         return FALSE;
 389     }
 390     p = strchrW(driver, ',');
 391     if(!p)
 392     {
 393         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 394         return FALSE;
 395     }
 396     *p = 0;
 397     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 398     return TRUE;
 399 }
 400
 401
 402 /***********************************************************************
 403  *           GdiConvertToDevmodeW    (GDI32.@)
 404  */
 405 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 406 {
 407     DEVMODEW *dmW;
 408     WORD dmW_size, dmA_size;
 409
 410     dmA_size = dmA->dmSize;
 411
 412     /* this is the minimal dmSize that XP accepts */
 413     if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
 414         return NULL;
 415
 416     if (dmA_size > sizeof(DEVMODEA))
 417         dmA_size = sizeof(DEVMODEA);
 418
 419     dmW_size = dmA_size + CCHDEVICENAME;
 420     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 421         dmW_size += CCHFORMNAME;
 422
 423     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 424     if (!dmW) return NULL;
 425
 426     MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
 427                                    dmW->dmDeviceName, CCHDEVICENAME);
 428     /* copy slightly more, to avoid long computations */
 429     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);
 430
 431     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 432     {
 433         if (dmA->dmFields & DM_FORMNAME)
 434             MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
 435                                        dmW->dmFormName, CCHFORMNAME);
 436         else
 437             dmW->dmFormName[0] = 0;
 438
 439         if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
 440             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
 441     }
 442
 443     if (dmA->dmDriverExtra)
 444         memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA_size, dmA->dmDriverExtra);
 445
 446     dmW->dmSize = dmW_size;
 447
 448     return dmW;
 449 }
 450
 451
 452 /*****************************************************************************
 453  *      @ [GDI32.100]
 454  *
 455  * This should thunk to 16-bit and simply call the proc with the given args.
 456  */
 457 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 458                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 459 {
 460     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 461     return -1;
 462 }
 463
 464 /*****************************************************************************
 465  *      @ [GDI32.101]
 466  *
 467  * This should load the correct driver for lpszDevice and calls this driver's
 468  * ExtDeviceModePropSheet proc.
 469  *
 470  * Note: The driver calls a callback routine for each property sheet page; these
 471  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 472  * The layout of this structure is:
 473  *
 474  * struct
 475  * {
 476  *   DWORD  nPages;
 477  *   DWORD  unknown;
 478  *   HPROPSHEETPAGE  pages[10];
 479  * };
 480  */
 481 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 482                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 483 {
 484     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 485     return -1;
 486 }
 487
 488 /*****************************************************************************
 489  *      @ [GDI32.102]
 490  *
 491  * This should load the correct driver for lpszDevice and call this driver's
 492  * ExtDeviceMode proc.
 493  *
 494  * FIXME: convert ExtDeviceMode to unicode in the driver interface
 495  */
 496 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 497                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 498                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 499                                     LPSTR lpszProfile, DWORD fwMode )
 500 {
 501     WCHAR deviceW[300];
 502     WCHAR bufW[300];
 503     char buf[300];
 504     HDC hdc;
 505     DC *dc;
 506     INT ret = -1;
 507
 508     TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
 509           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 510
 511     if (!lpszDevice) return -1;
 512     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 513
 514     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 515
 516     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 517
 518     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 519
 520     if ((dc = get_dc_ptr( hdc )))
 521     {
 522         if (dc->funcs->pExtDeviceMode)
 523             ret = dc->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 524                                              lpdmInput, lpszProfile, fwMode );
 525         release_dc_ptr( dc );
 526     }
 527     DeleteDC( hdc );
 528     return ret;
 529 }
 530
 531 /****************************************************************************
 532  *      @ [GDI32.103]
 533  *
 534  * This should load the correct driver for lpszDevice and calls this driver's
 535  * AdvancedSetupDialog proc.
 536  */
 537 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 538                                           LPDEVMODEA devin, LPDEVMODEA devout )
 539 {
 540     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 541     return -1;
 542 }
 543
 544 /*****************************************************************************
 545  *      @ [GDI32.104]
 546  *
 547  * This should load the correct driver for lpszDevice and calls this driver's
 548  * DeviceCapabilities proc.
 549  *
 550  * FIXME: convert DeviceCapabilities to unicode in the driver interface
 551  */
 552 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 553                                            WORD fwCapability, LPSTR lpszOutput,
 554                                            LPDEVMODEA lpdm )
 555 {
 556     WCHAR deviceW[300];
 557     WCHAR bufW[300];
 558     char buf[300];
 559     HDC hdc;
 560     DC *dc;
 561     INT ret = -1;
 562
 563     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 564
 565     if (!lpszDevice) return -1;
 566     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 567
 568     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 569
 570     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 571
 572     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 573
 574     if ((dc = get_dc_ptr( hdc )))
 575     {
 576         if (dc->funcs->pDeviceCapabilities)
 577             ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
 578                                                   fwCapability, lpszOutput, lpdm );
 579         release_dc_ptr( dc );
 580     }
 581     DeleteDC( hdc );
 582     return ret;
 583 }
 584
 585
 586 /************************************************************************
 587  *             Escape  [GDI32.@]
 588  */
 589 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
 590 {
 591     INT ret;
 592     POINT *pt;
 593
 594     switch (escape)
 595     {
 596     case ABORTDOC:
 597         return AbortDoc( hdc );
 598
 599     case ENDDOC:
 600         return EndDoc( hdc );
 601
 602     case GETPHYSPAGESIZE:
 603         pt = out_data;
 604         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
 605         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
 606         return 1;
 607
 608     case GETPRINTINGOFFSET:
 609         pt = out_data;
 610         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
 611         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
 612         return 1;
 613
 614     case GETSCALINGFACTOR:
 615         pt = out_data;
 616         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
 617         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
 618         return 1;
 619
 620     case NEWFRAME:
 621         return EndPage( hdc );
 622
 623     case SETABORTPROC:
 624         return SetAbortProc( hdc, (ABORTPROC)in_data );
 625
 626     case STARTDOC:
 627         {
 628             DOCINFOA doc;
 629             char *name = NULL;
 630
 631             /* in_data may not be 0 terminated so we must copy it */
 632             if (in_data)
 633             {
 634                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
 635                 memcpy( name, in_data, in_count );
 636                 name[in_count] = 0;
 637             }
 638             /* out_data is actually a pointer to the DocInfo structure and used as
 639              * a second input parameter */
 640             if (out_data) doc = *(DOCINFOA *)out_data;
 641             else
 642             {
 643                 doc.cbSize = sizeof(doc);
 644                 doc.lpszOutput = NULL;
 645                 doc.lpszDatatype = NULL;
 646                 doc.fwType = 0;
 647             }
 648             doc.lpszDocName = name;
 649             ret = StartDocA( hdc, &doc );
 650             HeapFree( GetProcessHeap(), 0, name );
 651             if (ret > 0) ret = StartPage( hdc );
 652             return ret;
 653         }
 654
 655     case QUERYESCSUPPORT:
 656         {
 657             const INT *ptr = (const INT *)in_data;
 658             if (in_count < sizeof(INT)) return 0;
 659             switch(*ptr)
 660             {
 661             case ABORTDOC:
 662             case ENDDOC:
 663             case GETPHYSPAGESIZE:
 664             case GETPRINTINGOFFSET:
 665             case GETSCALINGFACTOR:
 666             case NEWFRAME:
 667             case QUERYESCSUPPORT:
 668             case SETABORTPROC:
 669             case STARTDOC:
 670                 return TRUE;
 671             }
 672             break;
 673         }
 674     }
 675
 676     /* if not handled internally, pass it to the driver */
 677     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
 678 }
 679
 680
 681 /******************************************************************************
 682  *              ExtEscape       [GDI32.@]
 683  *
 684  * Access capabilities of a particular device that are not available through GDI.
 685  *
 686  * PARAMS
 687  *    hdc         [I] Handle to device context
 688  *    nEscape     [I] Escape function
 689  *    cbInput     [I] Number of bytes in input structure
 690  *    lpszInData  [I] Pointer to input structure
 691  *    cbOutput    [I] Number of bytes in output structure
 692  *    lpszOutData [O] Pointer to output structure
 693  *
 694  * RETURNS
 695  *    Success: >0
 696  *    Not implemented: 0
 697  *    Failure: <0
 698  */
 699 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
 700                       INT cbOutput, LPSTR lpszOutData )
 701 {
 702     INT ret = 0;
 703     DC * dc = get_dc_ptr( hdc );
 704     if (dc)
 705     {
 706         if (dc->funcs->pExtEscape)
 707             ret = dc->funcs->pExtEscape( dc->physDev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
 708         release_dc_ptr( dc );
 709     }
 710     return ret;
 711 }
 712
 713
 714 /*******************************************************************
 715  *      DrawEscape [GDI32.@]
 716  *
 717  *
 718  */
 719 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
 720 {
 721     FIXME("DrawEscape, stub\n");
 722     return 0;
 723 }
 724
 725 /*******************************************************************
 726  *      NamedEscape [GDI32.@]
 727  */
 728 INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
 729                         INT cbOutput, LPSTR lpszOutData )
 730 {
 731     FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
 732           hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
 733           lpszOutData);
 734     return 0;
 735 }
 736
 737 /*******************************************************************
 738  *      DdQueryDisplaySettingsUniqueness [GDI32.@]
 739  *      GdiEntry13                       [GDI32.@]
 740  */
 741 ULONG WINAPI DdQueryDisplaySettingsUniqueness(VOID)
 742 {
 743     static int warn_once;
 744
 745     if (!warn_once++)
 746         FIXME("stub\n");
 747     return 0;
 748 }