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 <assert.h>
  26 #include <stdarg.h>
  27 #include <string.h>
  28 #include <stdio.h>
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winreg.h"
  32 #include "ddrawgdi.h"
  33 #include "wine/winbase16.h"
  34
  35 #include "gdi_private.h"
  36 #include "wine/unicode.h"
  37 #include "wine/list.h"
  38 #include "wine/debug.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  41
  42 struct graphics_driver
  43 {
  44     struct list                entry;
  45     HMODULE                    module;  /* module handle */
  46     const struct gdi_dc_funcs *funcs;
  47 };
  48
  49 static struct list drivers = LIST_INIT( drivers );
  50 static struct graphics_driver *display_driver;
  51
  52 const struct gdi_dc_funcs *font_driver = NULL;
  53
  54 static CRITICAL_SECTION driver_section;
  55 static CRITICAL_SECTION_DEBUG critsect_debug =
  56 {
  57     0, 0, &driver_section,
  58     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  59       0, 0, { (DWORD_PTR)(__FILE__ ": driver_section") }
  60 };
  61 static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  62
  63 /**********************************************************************
  64  *           create_driver
  65  *
  66  * Allocate and fill the driver structure for a given module.
  67  */
  68 static struct graphics_driver *create_driver( HMODULE module )
  69 {
  70     static const struct gdi_dc_funcs empty_funcs;
  71     const struct gdi_dc_funcs *funcs = NULL;
  72     struct graphics_driver *driver;
  73
  74     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  75     driver->module = module;
  76
  77     if (module)
  78     {
  79         const struct gdi_dc_funcs * (CDECL *wine_get_gdi_driver)( unsigned int version );
  80
  81         if ((wine_get_gdi_driver = (void *)GetProcAddress( module, "wine_get_gdi_driver" )))
  82             funcs = wine_get_gdi_driver( WINE_GDI_DRIVER_VERSION );
  83     }
  84     if (!funcs) funcs = &empty_funcs;
  85     driver->funcs = funcs;
  86     return driver;
  87 }
  88
  89
  90 /**********************************************************************
  91  *           get_display_driver
  92  *
  93  * Special case for loading the display driver: get the name from the config file
  94  */
  95 static const struct gdi_dc_funcs *get_display_driver(void)
  96 {
  97     struct graphics_driver *driver;
  98     char buffer[MAX_PATH], libname[32], *name, *next;
  99     HMODULE module = 0;
 100     HKEY hkey;
 101
 102     if (display_driver) return display_driver->funcs;  /* already loaded */
 103
 104     strcpy( buffer, "x11" );  /* default value */
 105     /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
 106     if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
 107     {
 108         DWORD type, count = sizeof(buffer);
 109         RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
 110         RegCloseKey( hkey );
 111     }
 112
 113     name = buffer;
 114     while (name)
 115     {
 116         next = strchr( name, ',' );
 117         if (next) *next++ = 0;
 118
 119         snprintf( libname, sizeof(libname), "wine%s.drv", name );
 120         if ((module = LoadLibraryA( libname )) != 0) break;
 121         name = next;
 122     }
 123
 124     if (!(driver = create_driver( module )))
 125     {
 126         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 127         FreeLibrary( module );
 128         ExitProcess(1);
 129     }
 130     if (InterlockedCompareExchangePointer( (void **)&display_driver, driver, NULL ))
 131     {
 132         /* somebody beat us to it */
 133         FreeLibrary( driver->module );
 134         HeapFree( GetProcessHeap(), 0, driver );
 135     }
 136     return display_driver->funcs;
 137 }
 138
 139
 140 /**********************************************************************
 141  *           DRIVER_load_driver
 142  */
 143 const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name )
 144 {
 145     HMODULE module;
 146     struct graphics_driver *driver, *new_driver;
 147     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 148     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 149
 150     /* display driver is a special case */
 151     if (!strcmpiW( name, displayW ) || !strcmpiW( name, display1W )) return get_display_driver();
 152
 153     if ((module = GetModuleHandleW( name )))
 154     {
 155         if (display_driver && display_driver->module == module) return display_driver->funcs;
 156         EnterCriticalSection( &driver_section );
 157         LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 158         {
 159             if (driver->module == module) goto done;
 160         }
 161         LeaveCriticalSection( &driver_section );
 162     }
 163
 164     if (!(module = LoadLibraryW( name ))) return NULL;
 165
 166     if (!(new_driver = create_driver( module )))
 167     {
 168         FreeLibrary( module );
 169         return NULL;
 170     }
 171
 172     /* check if someone else added it in the meantime */
 173     EnterCriticalSection( &driver_section );
 174     LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 175     {
 176         if (driver->module != module) continue;
 177         FreeLibrary( module );
 178         HeapFree( GetProcessHeap(), 0, new_driver );
 179         goto done;
 180     }
 181     driver = new_driver;
 182     list_add_head( &drivers, &driver->entry );
 183     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 184 done:
 185     LeaveCriticalSection( &driver_section );
 186     return driver->funcs;
 187 }
 188
 189
 190 static INT nulldrv_AbortDoc( PHYSDEV dev )
 191 {
 192     return 0;
 193 }
 194
 195 static BOOL nulldrv_Arc( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 196                          INT xstart, INT ystart, INT xend, INT yend )
 197 {
 198     return TRUE;
 199 }
 200
 201 static INT nulldrv_ChoosePixelFormat( PHYSDEV dev, const PIXELFORMATDESCRIPTOR *descr )
 202 {
 203     return 0;
 204 }
 205
 206 static BOOL nulldrv_Chord( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 207                            INT xstart, INT ystart, INT xend, INT yend )
 208 {
 209     return TRUE;
 210 }
 211
 212 static BOOL nulldrv_CreateBitmap( PHYSDEV dev, HBITMAP bitmap )
 213 {
 214     return TRUE;
 215 }
 216
 217 static BOOL nulldrv_CreateCompatibleDC( PHYSDEV orig, PHYSDEV *pdev )
 218 {
 219     if (!display_driver || !display_driver->funcs->pCreateCompatibleDC) return TRUE;
 220     return display_driver->funcs->pCreateCompatibleDC( NULL, pdev );
 221 }
 222
 223 static BOOL nulldrv_CreateDC( PHYSDEV *dev, LPCWSTR driver, LPCWSTR device,
 224                               LPCWSTR output, const DEVMODEW *devmode )
 225 {
 226     assert(0);  /* should never be called */
 227     return FALSE;
 228 }
 229
 230 static HBITMAP nulldrv_CreateDIBSection( PHYSDEV dev, HBITMAP bitmap, BITMAPINFO *info, UINT usage )
 231 {
 232     return bitmap;
 233 }
 234
 235 static BOOL nulldrv_DeleteBitmap( HBITMAP bitmap )
 236 {
 237     return TRUE;
 238 }
 239
 240 static BOOL nulldrv_DeleteDC( PHYSDEV dev )
 241 {
 242     assert(0);  /* should never be called */
 243     return TRUE;
 244 }
 245
 246 static BOOL nulldrv_DeleteObject( PHYSDEV dev, HGDIOBJ obj )
 247 {
 248     return TRUE;
 249 }
 250
 251 static INT nulldrv_DescribePixelFormat( PHYSDEV dev, INT format, UINT size, PIXELFORMATDESCRIPTOR * descr )
 252 {
 253     return 0;
 254 }
 255
 256 static DWORD nulldrv_DeviceCapabilities( LPSTR buffer, LPCSTR device, LPCSTR port,
 257                                          WORD cap, LPSTR output, DEVMODEA *devmode )
 258 {
 259     return -1;
 260 }
 261
 262 static BOOL nulldrv_Ellipse( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 263 {
 264     return TRUE;
 265 }
 266
 267 static INT nulldrv_EndDoc( PHYSDEV dev )
 268 {
 269     return 0;
 270 }
 271
 272 static INT nulldrv_EndPage( PHYSDEV dev )
 273 {
 274     return 0;
 275 }
 276
 277 static BOOL nulldrv_EnumFonts( PHYSDEV dev, LOGFONTW *logfont, FONTENUMPROCW proc, LPARAM lParam )
 278 {
 279     return TRUE;
 280 }
 281
 282 static INT nulldrv_EnumICMProfiles( PHYSDEV dev, ICMENUMPROCW func, LPARAM lparam )
 283 {
 284     return -1;
 285 }
 286
 287 static INT nulldrv_ExtDeviceMode( LPSTR buffer, HWND hwnd, DEVMODEA *output, LPSTR device,
 288                                   LPSTR port, DEVMODEA *input, LPSTR profile, DWORD mode )
 289 {
 290     return -1;
 291 }
 292
 293 static INT nulldrv_ExtEscape( PHYSDEV dev, INT escape, INT in_size, const void *in_data,
 294                                     INT out_size, void *out_data )
 295 {
 296     return 0;
 297 }
 298
 299 static BOOL nulldrv_ExtFloodFill( PHYSDEV dev, INT x, INT y, COLORREF color, UINT type )
 300 {
 301     return TRUE;
 302 }
 303
 304 static BOOL nulldrv_ExtTextOut( PHYSDEV dev, INT x, INT y, UINT flags, const RECT *rect,
 305                                 LPCWSTR str, UINT count, const INT *dx )
 306 {
 307     return TRUE;
 308 }
 309
 310 static BOOL nulldrv_FontIsLinked( PHYSDEV dev )
 311 {
 312     return FALSE;
 313 }
 314
 315 static BOOL nulldrv_GdiComment( PHYSDEV dev, UINT size, const BYTE *data )
 316 {
 317     return FALSE;
 318 }
 319
 320 static BOOL nulldrv_GdiRealizationInfo( PHYSDEV dev, void *info )
 321 {
 322     return FALSE;
 323 }
 324
 325 static BOOL nulldrv_GetCharABCWidths( PHYSDEV dev, UINT first, UINT last, LPABC abc )
 326 {
 327     return FALSE;
 328 }
 329
 330 static BOOL nulldrv_GetCharABCWidthsI( PHYSDEV dev, UINT first, UINT count, WORD *indices, LPABC abc )
 331 {
 332     return FALSE;
 333 }
 334
 335 static BOOL nulldrv_GetCharWidth( PHYSDEV dev, UINT first, UINT last, INT *buffer )
 336 {
 337     return FALSE;
 338 }
 339
 340 static INT nulldrv_GetDeviceCaps( PHYSDEV dev, INT cap )
 341 {
 342     switch (cap)  /* return meaningful values for some entries */
 343     {
 344     case HORZRES:     return 640;
 345     case VERTRES:     return 480;
 346     case BITSPIXEL:   return 1;
 347     case PLANES:      return 1;
 348     case NUMCOLORS:   return 2;
 349     case ASPECTX:     return 36;
 350     case ASPECTY:     return 36;
 351     case ASPECTXY:    return 51;
 352     case LOGPIXELSX:  return 72;
 353     case LOGPIXELSY:  return 72;
 354     case SIZEPALETTE: return 2;
 355     case TEXTCAPS:    return (TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
 356                               TC_CR_ANY | TC_SF_X_YINDEP | TC_SA_DOUBLE | TC_SA_INTEGER |
 357                               TC_SA_CONTIN | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE | TC_VA_ABLE);
 358     default:          return 0;
 359     }
 360 }
 361
 362 static BOOL nulldrv_GetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 363 {
 364     return FALSE;
 365 }
 366
 367 static DWORD nulldrv_GetFontData( PHYSDEV dev, DWORD table, DWORD offset, LPVOID buffer, DWORD length )
 368 {
 369     return FALSE;
 370 }
 371
 372 static DWORD nulldrv_GetFontUnicodeRanges( PHYSDEV dev, LPGLYPHSET glyphs )
 373 {
 374     return 0;
 375 }
 376
 377 static DWORD nulldrv_GetGlyphIndices( PHYSDEV dev, LPCWSTR str, INT count, LPWORD indices, DWORD flags )
 378 {
 379     return GDI_ERROR;
 380 }
 381
 382 static DWORD nulldrv_GetGlyphOutline( PHYSDEV dev, UINT ch, UINT format, LPGLYPHMETRICS metrics,
 383                                       DWORD size, LPVOID buffer, const MAT2 *mat )
 384 {
 385     return GDI_ERROR;
 386 }
 387
 388 static BOOL nulldrv_GetICMProfile( PHYSDEV dev, LPDWORD size, LPWSTR filename )
 389 {
 390     return FALSE;
 391 }
 392
 393 static DWORD nulldrv_GetKerningPairs( PHYSDEV dev, DWORD count, LPKERNINGPAIR pairs )
 394 {
 395     return 0;
 396 }
 397
 398 static UINT nulldrv_GetOutlineTextMetrics( PHYSDEV dev, UINT size, LPOUTLINETEXTMETRICW otm )
 399 {
 400     return 0;
 401 }
 402
 403 static COLORREF nulldrv_GetPixel( PHYSDEV dev, INT x, INT y )
 404 {
 405     return CLR_INVALID;
 406 }
 407
 408 static INT nulldrv_GetPixelFormat( PHYSDEV dev )
 409 {
 410     return 0;
 411 }
 412
 413 static UINT nulldrv_GetSystemPaletteEntries( PHYSDEV dev, UINT start, UINT count, PALETTEENTRY *entries )
 414 {
 415     return 0;
 416 }
 417
 418 static UINT nulldrv_GetTextCharsetInfo( PHYSDEV dev, LPFONTSIGNATURE fs, DWORD flags )
 419 {
 420     return DEFAULT_CHARSET;
 421 }
 422
 423 static BOOL nulldrv_GetTextExtentExPoint( PHYSDEV dev, LPCWSTR str, INT count, INT max_ext,
 424                                           INT *fit, INT *dx, SIZE *size )
 425 {
 426     return FALSE;
 427 }
 428
 429 static BOOL nulldrv_GetTextExtentExPointI( PHYSDEV dev, const WORD *indices, INT count, INT max_ext,
 430                                            INT *fit, INT *dx, SIZE *size )
 431 {
 432     return FALSE;
 433 }
 434
 435 static INT nulldrv_GetTextFace( PHYSDEV dev, INT size, LPWSTR name )
 436 {
 437     INT ret = 0;
 438     LOGFONTW font;
 439     HFONT hfont = GetCurrentObject( dev->hdc, OBJ_FONT );
 440
 441     if (GetObjectW( hfont, sizeof(font), &font ))
 442     {
 443         ret = strlenW( font.lfFaceName ) + 1;
 444         if (name)
 445         {
 446             lstrcpynW( name, font.lfFaceName, size );
 447             ret = min( size, ret );
 448         }
 449     }
 450     return ret;
 451 }
 452
 453 static BOOL nulldrv_GetTextMetrics( PHYSDEV dev, TEXTMETRICW *metrics )
 454 {
 455     return FALSE;
 456 }
 457
 458 static BOOL nulldrv_LineTo( PHYSDEV dev, INT x, INT y )
 459 {
 460     return TRUE;
 461 }
 462
 463 static BOOL nulldrv_MoveTo( PHYSDEV dev, INT x, INT y )
 464 {
 465     return TRUE;
 466 }
 467
 468 static BOOL nulldrv_PaintRgn( PHYSDEV dev, HRGN rgn )
 469 {
 470     return TRUE;
 471 }
 472
 473 static BOOL nulldrv_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
 474 {
 475     return TRUE;
 476 }
 477
 478 static BOOL nulldrv_Pie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 479                          INT xstart, INT ystart, INT xend, INT yend )
 480 {
 481     return TRUE;
 482 }
 483
 484 static BOOL nulldrv_PolyPolygon( PHYSDEV dev, const POINT *points, const INT *counts, UINT polygons )
 485 {
 486     /* FIXME: could be implemented with Polygon */
 487     return TRUE;
 488 }
 489
 490 static BOOL nulldrv_PolyPolyline( PHYSDEV dev, const POINT *points, const DWORD *counts, DWORD lines )
 491 {
 492     /* FIXME: could be implemented with Polyline */
 493     return TRUE;
 494 }
 495
 496 static BOOL nulldrv_Polygon( PHYSDEV dev, const POINT *points, INT count )
 497 {
 498     return TRUE;
 499 }
 500
 501 static BOOL nulldrv_Polyline( PHYSDEV dev, const POINT *points, INT count )
 502 {
 503     return TRUE;
 504 }
 505
 506 static UINT nulldrv_RealizeDefaultPalette( PHYSDEV dev )
 507 {
 508     return 0;
 509 }
 510
 511 static UINT nulldrv_RealizePalette( PHYSDEV dev, HPALETTE palette, BOOL primary )
 512 {
 513     return 0;
 514 }
 515
 516 static BOOL nulldrv_Rectangle( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 517 {
 518     return TRUE;
 519 }
 520
 521 static HDC nulldrv_ResetDC( PHYSDEV dev, const DEVMODEW *devmode )
 522 {
 523     return 0;
 524 }
 525
 526 static BOOL nulldrv_RoundRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 527                                INT ell_width, INT ell_height )
 528 {
 529     return TRUE;
 530 }
 531
 532 static HBITMAP nulldrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
 533 {
 534     return bitmap;
 535 }
 536
 537 static HBRUSH nulldrv_SelectBrush( PHYSDEV dev, HBRUSH brush, HBITMAP bitmap,
 538                                    const BITMAPINFO *info, void *bits, UINT usage )
 539 {
 540     return brush;
 541 }
 542
 543 static HFONT nulldrv_SelectFont( PHYSDEV dev, HFONT font )
 544 {
 545     return 0;
 546 }
 547
 548 static HPALETTE nulldrv_SelectPalette( PHYSDEV dev, HPALETTE palette, BOOL bkgnd )
 549 {
 550     return palette;
 551 }
 552
 553 static HPEN nulldrv_SelectPen( PHYSDEV dev, HPEN pen )
 554 {
 555     return pen;
 556 }
 557
 558 static INT nulldrv_SetArcDirection( PHYSDEV dev, INT dir )
 559 {
 560     return dir;
 561 }
 562
 563 static COLORREF nulldrv_SetBkColor( PHYSDEV dev, COLORREF color )
 564 {
 565     return color;
 566 }
 567
 568 static INT nulldrv_SetBkMode( PHYSDEV dev, INT mode )
 569 {
 570     return mode;
 571 }
 572
 573 static COLORREF nulldrv_SetDCBrushColor( PHYSDEV dev, COLORREF color )
 574 {
 575     return color;
 576 }
 577
 578 static COLORREF nulldrv_SetDCPenColor( PHYSDEV dev, COLORREF color )
 579 {
 580     return color;
 581 }
 582
 583 static UINT nulldrv_SetDIBColorTable( PHYSDEV dev, UINT pos, UINT count, const RGBQUAD *colors )
 584 {
 585     return 0;
 586 }
 587
 588 static void nulldrv_SetDeviceClipping( PHYSDEV dev, HRGN vis_rgn, HRGN clip_rgn )
 589 {
 590 }
 591
 592 static DWORD nulldrv_SetLayout( PHYSDEV dev, DWORD layout )
 593 {
 594     return layout;
 595 }
 596
 597 static BOOL nulldrv_SetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 598 {
 599     return FALSE;
 600 }
 601
 602 static DWORD nulldrv_SetMapperFlags( PHYSDEV dev, DWORD flags )
 603 {
 604     return flags;
 605 }
 606
 607 static COLORREF nulldrv_SetPixel( PHYSDEV dev, INT x, INT y, COLORREF color )
 608 {
 609     return color;
 610 }
 611
 612 static BOOL nulldrv_SetPixelFormat( PHYSDEV dev, INT format, const PIXELFORMATDESCRIPTOR *descr )
 613 {
 614     return FALSE;
 615 }
 616
 617 static INT nulldrv_SetPolyFillMode( PHYSDEV dev, INT mode )
 618 {
 619     return mode;
 620 }
 621
 622 static INT nulldrv_SetROP2( PHYSDEV dev, INT rop )
 623 {
 624     return rop;
 625 }
 626
 627 static INT nulldrv_SetRelAbs( PHYSDEV dev, INT mode )
 628 {
 629     return mode;
 630 }
 631
 632 static INT nulldrv_SetStretchBltMode( PHYSDEV dev, INT mode )
 633 {
 634     return mode;
 635 }
 636
 637 static UINT nulldrv_SetTextAlign( PHYSDEV dev, UINT align )
 638 {
 639     return align;
 640 }
 641
 642 static INT nulldrv_SetTextCharacterExtra( PHYSDEV dev, INT extra )
 643 {
 644     return extra;
 645 }
 646
 647 static COLORREF nulldrv_SetTextColor( PHYSDEV dev, COLORREF color )
 648 {
 649     return color;
 650 }
 651
 652 static BOOL nulldrv_SetTextJustification( PHYSDEV dev, INT extra, INT breaks )
 653 {
 654     return TRUE;
 655 }
 656
 657 static INT nulldrv_StartDoc( PHYSDEV dev, const DOCINFOW *info )
 658 {
 659     return 0;
 660 }
 661
 662 static INT nulldrv_StartPage( PHYSDEV dev )
 663 {
 664     return 1;
 665 }
 666
 667 static BOOL nulldrv_SwapBuffers( PHYSDEV dev )
 668 {
 669     return TRUE;
 670 }
 671
 672 static BOOL nulldrv_UnrealizePalette( HPALETTE palette )
 673 {
 674     return FALSE;
 675 }
 676
 677 static BOOL nulldrv_wglCopyContext( HGLRC ctx_src, HGLRC ctx_dst, UINT mask )
 678 {
 679     return FALSE;
 680 }
 681
 682 static HGLRC nulldrv_wglCreateContext( PHYSDEV dev )
 683 {
 684     return 0;
 685 }
 686
 687 static HGLRC nulldrv_wglCreateContextAttribsARB( PHYSDEV dev, HGLRC share_ctx, const int *attribs )
 688 {
 689     return 0;
 690 }
 691
 692 static BOOL nulldrv_wglDeleteContext( HGLRC ctx )
 693 {
 694     return FALSE;
 695 }
 696
 697 static PROC nulldrv_wglGetProcAddress( LPCSTR name )
 698 {
 699     return NULL;
 700 }
 701
 702 static HDC nulldrv_wglGetPbufferDCARB( PHYSDEV dev, void *pbuffer )
 703 {
 704     return 0;
 705 }
 706
 707 static BOOL nulldrv_wglMakeCurrent( PHYSDEV dev, HGLRC ctx )
 708 {
 709     return FALSE;
 710 }
 711
 712 static BOOL nulldrv_wglMakeContextCurrentARB( PHYSDEV dev_draw, PHYSDEV dev_read, HGLRC ctx )
 713 {
 714     return FALSE;
 715 }
 716
 717 static BOOL nulldrv_wglSetPixelFormatWINE( PHYSDEV dev, INT format, const PIXELFORMATDESCRIPTOR *descr )
 718 {
 719     return FALSE;
 720 }
 721
 722 static BOOL nulldrv_wglShareLists( HGLRC ctx1, HGLRC ctx2 )
 723 {
 724     return FALSE;
 725 }
 726
 727 static BOOL nulldrv_wglUseFontBitmapsA( PHYSDEV dev, DWORD start, DWORD count, DWORD base )
 728 {
 729     return FALSE;
 730 }
 731
 732 static BOOL nulldrv_wglUseFontBitmapsW( PHYSDEV dev, DWORD start, DWORD count, DWORD base )
 733 {
 734     return FALSE;
 735 }
 736
 737 const struct gdi_dc_funcs null_driver =
 738 {
 739     nulldrv_AbortDoc,                   /* pAbortDoc */
 740     nulldrv_AbortPath,                  /* pAbortPath */
 741     nulldrv_AlphaBlend,                 /* pAlphaBlend */
 742     nulldrv_AngleArc,                   /* pAngleArc */
 743     nulldrv_Arc,                        /* pArc */
 744     nulldrv_ArcTo,                      /* pArcTo */
 745     nulldrv_BeginPath,                  /* pBeginPath */
 746     nulldrv_BlendImage,                 /* pBlendImage */
 747     nulldrv_ChoosePixelFormat,          /* pChoosePixelFormat */
 748     nulldrv_Chord,                      /* pChord */
 749     nulldrv_CloseFigure,                /* pCloseFigure */
 750     nulldrv_CreateBitmap,               /* pCreateBitmap */
 751     nulldrv_CreateCompatibleDC,         /* pCreateCompatibleDC */
 752     nulldrv_CreateDC,                   /* pCreateDC */
 753     nulldrv_CreateDIBSection,           /* pCreateDIBSection */
 754     nulldrv_DeleteBitmap,               /* pDeleteBitmap */
 755     nulldrv_DeleteDC,                   /* pDeleteDC */
 756     nulldrv_DeleteObject,               /* pDeleteObject */
 757     nulldrv_DescribePixelFormat,        /* pDescribePixelFormat */
 758     nulldrv_DeviceCapabilities,         /* pDeviceCapabilities */
 759     nulldrv_Ellipse,                    /* pEllipse */
 760     nulldrv_EndDoc,                     /* pEndDoc */
 761     nulldrv_EndPage,                    /* pEndPage */
 762     nulldrv_EndPath,                    /* pEndPath */
 763     nulldrv_EnumFonts,                  /* pEnumFonts */
 764     nulldrv_EnumICMProfiles,            /* pEnumICMProfiles */
 765     nulldrv_ExcludeClipRect,            /* pExcludeClipRect */
 766     nulldrv_ExtDeviceMode,              /* pExtDeviceMode */
 767     nulldrv_ExtEscape,                  /* pExtEscape */
 768     nulldrv_ExtFloodFill,               /* pExtFloodFill */
 769     nulldrv_ExtSelectClipRgn,           /* pExtSelectClipRgn */
 770     nulldrv_ExtTextOut,                 /* pExtTextOut */
 771     nulldrv_FillPath,                   /* pFillPath */
 772     nulldrv_FillRgn,                    /* pFillRgn */
 773     nulldrv_FlattenPath,                /* pFlattenPath */
 774     nulldrv_FontIsLinked,               /* pFontIsLinked */
 775     nulldrv_FrameRgn,                   /* pFrameRgn */
 776     nulldrv_GdiComment,                 /* pGdiComment */
 777     nulldrv_GdiRealizationInfo,         /* pGdiRealizationInfo */
 778     nulldrv_GetCharABCWidths,           /* pGetCharABCWidths */
 779     nulldrv_GetCharABCWidthsI,          /* pGetCharABCWidthsI */
 780     nulldrv_GetCharWidth,               /* pGetCharWidth */
 781     nulldrv_GetDeviceCaps,              /* pGetDeviceCaps */
 782     nulldrv_GetDeviceGammaRamp,         /* pGetDeviceGammaRamp */
 783     nulldrv_GetFontData,                /* pGetFontData */
 784     nulldrv_GetFontUnicodeRanges,       /* pGetFontUnicodeRanges */
 785     nulldrv_GetGlyphIndices,            /* pGetGlyphIndices */
 786     nulldrv_GetGlyphOutline,            /* pGetGlyphOutline */
 787     nulldrv_GetICMProfile,              /* pGetICMProfile */
 788     nulldrv_GetImage,                   /* pGetImage */
 789     nulldrv_GetKerningPairs,            /* pGetKerningPairs */
 790     nulldrv_GetNearestColor,            /* pGetNearestColor */
 791     nulldrv_GetOutlineTextMetrics,      /* pGetOutlineTextMetrics */
 792     nulldrv_GetPixel,                   /* pGetPixel */
 793     nulldrv_GetPixelFormat,             /* pGetPixelFormat */
 794     nulldrv_GetSystemPaletteEntries,    /* pGetSystemPaletteEntries */
 795     nulldrv_GetTextCharsetInfo,         /* pGetTextCharsetInfo */
 796     nulldrv_GetTextExtentExPoint,       /* pGetTextExtentExPoint */
 797     nulldrv_GetTextExtentExPointI,      /* pGetTextExtentExPointI */
 798     nulldrv_GetTextFace,                /* pGetTextFace */
 799     nulldrv_GetTextMetrics,             /* pGetTextMetrics */
 800     nulldrv_GradientFill,               /* pGradientFill */
 801     nulldrv_IntersectClipRect,          /* pIntersectClipRect */
 802     nulldrv_InvertRgn,                  /* pInvertRgn */
 803     nulldrv_LineTo,                     /* pLineTo */
 804     nulldrv_ModifyWorldTransform,       /* pModifyWorldTransform */
 805     nulldrv_MoveTo,                     /* pMoveTo */
 806     nulldrv_OffsetClipRgn,              /* pOffsetClipRgn */
 807     nulldrv_OffsetViewportOrgEx,        /* pOffsetViewportOrg */
 808     nulldrv_OffsetWindowOrgEx,          /* pOffsetWindowOrg */
 809     nulldrv_PaintRgn,                   /* pPaintRgn */
 810     nulldrv_PatBlt,                     /* pPatBlt */
 811     nulldrv_Pie,                        /* pPie */
 812     nulldrv_PolyBezier,                 /* pPolyBezier */
 813     nulldrv_PolyBezierTo,               /* pPolyBezierTo */
 814     nulldrv_PolyDraw,                   /* pPolyDraw */
 815     nulldrv_PolyPolygon,                /* pPolyPolygon */
 816     nulldrv_PolyPolyline,               /* pPolyPolyline */
 817     nulldrv_Polygon,                    /* pPolygon */
 818     nulldrv_Polyline,                   /* pPolyline */
 819     nulldrv_PolylineTo,                 /* pPolylineTo */
 820     nulldrv_PutImage,                   /* pPutImage */
 821     nulldrv_RealizeDefaultPalette,      /* pRealizeDefaultPalette */
 822     nulldrv_RealizePalette,             /* pRealizePalette */
 823     nulldrv_Rectangle,                  /* pRectangle */
 824     nulldrv_ResetDC,                    /* pResetDC */
 825     nulldrv_RestoreDC,                  /* pRestoreDC */
 826     nulldrv_RoundRect,                  /* pRoundRect */
 827     nulldrv_SaveDC,                     /* pSaveDC */
 828     nulldrv_ScaleViewportExtEx,         /* pScaleViewportExt */
 829     nulldrv_ScaleWindowExtEx,           /* pScaleWindowExt */
 830     nulldrv_SelectBitmap,               /* pSelectBitmap */
 831     nulldrv_SelectBrush,                /* pSelectBrush */
 832     nulldrv_SelectClipPath,             /* pSelectClipPath */
 833     nulldrv_SelectFont,                 /* pSelectFont */
 834     nulldrv_SelectPalette,              /* pSelectPalette */
 835     nulldrv_SelectPen,                  /* pSelectPen */
 836     nulldrv_SetArcDirection,            /* pSetArcDirection */
 837     nulldrv_SetBkColor,                 /* pSetBkColor */
 838     nulldrv_SetBkMode,                  /* pSetBkMode */
 839     nulldrv_SetDCBrushColor,            /* pSetDCBrushColor */
 840     nulldrv_SetDCPenColor,              /* pSetDCPenColor */
 841     nulldrv_SetDIBColorTable,           /* pSetDIBColorTable */
 842     nulldrv_SetDIBitsToDevice,          /* pSetDIBitsToDevice */
 843     nulldrv_SetDeviceClipping,          /* pSetDeviceClipping */
 844     nulldrv_SetDeviceGammaRamp,         /* pSetDeviceGammaRamp */
 845     nulldrv_SetLayout,                  /* pSetLayout */
 846     nulldrv_SetMapMode,                 /* pSetMapMode */
 847     nulldrv_SetMapperFlags,             /* pSetMapperFlags */
 848     nulldrv_SetPixel,                   /* pSetPixel */
 849     nulldrv_SetPixelFormat,             /* pSetPixelFormat */
 850     nulldrv_SetPolyFillMode,            /* pSetPolyFillMode */
 851     nulldrv_SetROP2,                    /* pSetROP2 */
 852     nulldrv_SetRelAbs,                  /* pSetRelAbs */
 853     nulldrv_SetStretchBltMode,          /* pSetStretchBltMode */
 854     nulldrv_SetTextAlign,               /* pSetTextAlign */
 855     nulldrv_SetTextCharacterExtra,      /* pSetTextCharacterExtra */
 856     nulldrv_SetTextColor,               /* pSetTextColor */
 857     nulldrv_SetTextJustification,       /* pSetTextJustification */
 858     nulldrv_SetViewportExtEx,           /* pSetViewportExt */
 859     nulldrv_SetViewportOrgEx,           /* pSetViewportOrg */
 860     nulldrv_SetWindowExtEx,             /* pSetWindowExt */
 861     nulldrv_SetWindowOrgEx,             /* pSetWindowOrg */
 862     nulldrv_SetWorldTransform,          /* pSetWorldTransform */
 863     nulldrv_StartDoc,                   /* pStartDoc */
 864     nulldrv_StartPage,                  /* pStartPage */
 865     nulldrv_StretchBlt,                 /* pStretchBlt */
 866     nulldrv_StretchDIBits,              /* pStretchDIBits */
 867     nulldrv_StrokeAndFillPath,          /* pStrokeAndFillPath */
 868     nulldrv_StrokePath,                 /* pStrokePath */
 869     nulldrv_SwapBuffers,                /* pSwapBuffers */
 870     nulldrv_UnrealizePalette,           /* pUnrealizePalette */
 871     nulldrv_WidenPath,                  /* pWidenPath */
 872     nulldrv_wglCopyContext,             /* pwglCopyContext */
 873     nulldrv_wglCreateContext,           /* pwglCreateContext */
 874     nulldrv_wglCreateContextAttribsARB, /* pwglCreateContextAttribsARB */
 875     nulldrv_wglDeleteContext,           /* pwglDeleteContext */
 876     nulldrv_wglGetPbufferDCARB,         /* pwglGetPbufferDCARB */
 877     nulldrv_wglGetProcAddress,          /* pwglGetProcAddress */
 878     nulldrv_wglMakeContextCurrentARB,   /* pwglMakeContextCurrentARB */
 879     nulldrv_wglMakeCurrent,             /* pwglMakeCurrent */
 880     nulldrv_wglSetPixelFormatWINE,      /* pwglSetPixelFormatWINE */
 881     nulldrv_wglShareLists,              /* pwglShareLists */
 882     nulldrv_wglUseFontBitmapsA,         /* pwglUseFontBitmapsA */
 883     nulldrv_wglUseFontBitmapsW,         /* pwglUseFontBitmapsW */
 884 };
 885
 886
 887 /*****************************************************************************
 888  *      DRIVER_GetDriverName
 889  *
 890  */
 891 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 892 {
 893     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 894     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 895     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 896     static const WCHAR empty_strW[] = { 0 };
 897     WCHAR *p;
 898
 899     /* display is a special case */
 900     if (!strcmpiW( device, displayW ) ||
 901         !strcmpiW( device, display1W ))
 902     {
 903         lstrcpynW( driver, displayW, size );
 904         return TRUE;
 905     }
 906
 907     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 908     if(!size) {
 909         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 910         return FALSE;
 911     }
 912     p = strchrW(driver, ',');
 913     if(!p)
 914     {
 915         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 916         return FALSE;
 917     }
 918     *p = 0;
 919     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 920     return TRUE;
 921 }
 922
 923
 924 /***********************************************************************
 925  *           GdiConvertToDevmodeW    (GDI32.@)
 926  */
 927 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 928 {
 929     DEVMODEW *dmW;
 930     WORD dmW_size, dmA_size;
 931
 932     dmA_size = dmA->dmSize;
 933
 934     /* this is the minimal dmSize that XP accepts */
 935     if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
 936         return NULL;
 937
 938     if (dmA_size > sizeof(DEVMODEA))
 939         dmA_size = sizeof(DEVMODEA);
 940
 941     dmW_size = dmA_size + CCHDEVICENAME;
 942     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 943         dmW_size += CCHFORMNAME;
 944
 945     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 946     if (!dmW) return NULL;
 947
 948     MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
 949                                    dmW->dmDeviceName, CCHDEVICENAME);
 950     /* copy slightly more, to avoid long computations */
 951     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);
 952
 953     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 954     {
 955         if (dmA->dmFields & DM_FORMNAME)
 956             MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
 957                                        dmW->dmFormName, CCHFORMNAME);
 958         else
 959             dmW->dmFormName[0] = 0;
 960
 961         if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
 962             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
 963     }
 964
 965     if (dmA->dmDriverExtra)
 966         memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA_size, dmA->dmDriverExtra);
 967
 968     dmW->dmSize = dmW_size;
 969
 970     return dmW;
 971 }
 972
 973
 974 /*****************************************************************************
 975  *      @ [GDI32.100]
 976  *
 977  * This should thunk to 16-bit and simply call the proc with the given args.
 978  */
 979 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 980                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 981 {
 982     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 983     return -1;
 984 }
 985
 986 /*****************************************************************************
 987  *      @ [GDI32.101]
 988  *
 989  * This should load the correct driver for lpszDevice and calls this driver's
 990  * ExtDeviceModePropSheet proc.
 991  *
 992  * Note: The driver calls a callback routine for each property sheet page; these
 993  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 994  * The layout of this structure is:
 995  *
 996  * struct
 997  * {
 998  *   DWORD  nPages;
 999  *   DWORD  unknown;
1000  *   HPROPSHEETPAGE  pages[10];
1001  * };
1002  */
1003 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
1004                                              LPCSTR lpszPort, LPVOID lpPropSheet )
1005 {
1006     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
1007     return -1;
1008 }
1009
1010 /*****************************************************************************
1011  *      @ [GDI32.102]
1012  *
1013  * This should load the correct driver for lpszDevice and call this driver's
1014  * ExtDeviceMode proc.
1015  *
1016  * FIXME: convert ExtDeviceMode to unicode in the driver interface
1017  */
1018 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
1019                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
1020                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
1021                                     LPSTR lpszProfile, DWORD fwMode )
1022 {
1023     WCHAR deviceW[300];
1024     WCHAR bufW[300];
1025     char buf[300];
1026     HDC hdc;
1027     DC *dc;
1028     INT ret = -1;
1029
1030     TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
1031           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
1032
1033     if (!lpszDevice) return -1;
1034     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
1035
1036     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
1037
1038     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
1039
1040     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
1041
1042     if ((dc = get_dc_ptr( hdc )))
1043     {
1044         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pExtDeviceMode );
1045         ret = physdev->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
1046                                               lpdmInput, lpszProfile, fwMode );
1047         release_dc_ptr( dc );
1048     }
1049     DeleteDC( hdc );
1050     return ret;
1051 }
1052
1053 /****************************************************************************
1054  *      @ [GDI32.103]
1055  *
1056  * This should load the correct driver for lpszDevice and calls this driver's
1057  * AdvancedSetupDialog proc.
1058  */
1059 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
1060                                           LPDEVMODEA devin, LPDEVMODEA devout )
1061 {
1062     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
1063     return -1;
1064 }
1065
1066 /*****************************************************************************
1067  *      @ [GDI32.104]
1068  *
1069  * This should load the correct driver for lpszDevice and calls this driver's
1070  * DeviceCapabilities proc.
1071  *
1072  * FIXME: convert DeviceCapabilities to unicode in the driver interface
1073  */
1074 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
1075                                            WORD fwCapability, LPSTR lpszOutput,
1076                                            LPDEVMODEA lpdm )
1077 {
1078     WCHAR deviceW[300];
1079     WCHAR bufW[300];
1080     char buf[300];
1081     HDC hdc;
1082     DC *dc;
1083     INT ret = -1;
1084
1085     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
1086
1087     if (!lpszDevice) return -1;
1088     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
1089
1090     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
1091
1092     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
1093
1094     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
1095
1096     if ((dc = get_dc_ptr( hdc )))
1097     {
1098         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pDeviceCapabilities );
1099         ret = physdev->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
1100                                                    fwCapability, lpszOutput, lpdm );
1101         release_dc_ptr( dc );
1102     }
1103     DeleteDC( hdc );
1104     return ret;
1105 }
1106
1107
1108 /************************************************************************
1109  *             Escape  [GDI32.@]
1110  */
1111 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
1112 {
1113     INT ret;
1114     POINT *pt;
1115
1116     switch (escape)
1117     {
1118     case ABORTDOC:
1119         return AbortDoc( hdc );
1120
1121     case ENDDOC:
1122         return EndDoc( hdc );
1123
1124     case GETPHYSPAGESIZE:
1125         pt = out_data;
1126         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
1127         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
1128         return 1;
1129
1130     case GETPRINTINGOFFSET:
1131         pt = out_data;
1132         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
1133         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
1134         return 1;
1135
1136     case GETSCALINGFACTOR:
1137         pt = out_data;
1138         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
1139         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
1140         return 1;
1141
1142     case NEWFRAME:
1143         return EndPage( hdc );
1144
1145     case SETABORTPROC:
1146         return SetAbortProc( hdc, (ABORTPROC)in_data );
1147
1148     case STARTDOC:
1149         {
1150             DOCINFOA doc;
1151             char *name = NULL;
1152
1153             /* in_data may not be 0 terminated so we must copy it */
1154             if (in_data)
1155             {
1156                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
1157                 memcpy( name, in_data, in_count );
1158                 name[in_count] = 0;
1159             }
1160             /* out_data is actually a pointer to the DocInfo structure and used as
1161              * a second input parameter */
1162             if (out_data) doc = *(DOCINFOA *)out_data;
1163             else
1164             {
1165                 doc.cbSize = sizeof(doc);
1166                 doc.lpszOutput = NULL;
1167                 doc.lpszDatatype = NULL;
1168                 doc.fwType = 0;
1169             }
1170             doc.lpszDocName = name;
1171             ret = StartDocA( hdc, &doc );
1172             HeapFree( GetProcessHeap(), 0, name );
1173             if (ret > 0) ret = StartPage( hdc );
1174             return ret;
1175         }
1176
1177     case QUERYESCSUPPORT:
1178         {
1179             const INT *ptr = (const INT *)in_data;
1180             if (in_count < sizeof(INT)) return 0;
1181             switch(*ptr)
1182             {
1183             case ABORTDOC:
1184             case ENDDOC:
1185             case GETPHYSPAGESIZE:
1186             case GETPRINTINGOFFSET:
1187             case GETSCALINGFACTOR:
1188             case NEWFRAME:
1189             case QUERYESCSUPPORT:
1190             case SETABORTPROC:
1191             case STARTDOC:
1192                 return TRUE;
1193             }
1194             break;
1195         }
1196     }
1197
1198     /* if not handled internally, pass it to the driver */
1199     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
1200 }
1201
1202
1203 /******************************************************************************
1204  *              ExtEscape       [GDI32.@]
1205  *
1206  * Access capabilities of a particular device that are not available through GDI.
1207  *
1208  * PARAMS
1209  *    hdc         [I] Handle to device context
1210  *    nEscape     [I] Escape function
1211  *    cbInput     [I] Number of bytes in input structure
1212  *    lpszInData  [I] Pointer to input structure
1213  *    cbOutput    [I] Number of bytes in output structure
1214  *    lpszOutData [O] Pointer to output structure
1215  *
1216  * RETURNS
1217  *    Success: >0
1218  *    Not implemented: 0
1219  *    Failure: <0
1220  */
1221 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
1222                       INT cbOutput, LPSTR lpszOutData )
1223 {
1224     INT ret = 0;
1225     DC * dc = get_dc_ptr( hdc );
1226
1227     if (dc)
1228     {
1229         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pExtEscape );
1230         update_dc( dc );
1231         ret = physdev->funcs->pExtEscape( physdev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
1232         release_dc_ptr( dc );
1233     }
1234     return ret;
1235 }
1236
1237
1238 /*******************************************************************
1239  *      DrawEscape [GDI32.@]
1240  *
1241  *
1242  */
1243 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
1244 {
1245     FIXME("DrawEscape, stub\n");
1246     return 0;
1247 }
1248
1249 /*******************************************************************
1250  *      NamedEscape [GDI32.@]
1251  */
1252 INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
1253                         INT cbOutput, LPSTR lpszOutData )
1254 {
1255     FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
1256           hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
1257           lpszOutData);
1258     return 0;
1259 }
1260
1261 /*******************************************************************
1262  *      DdQueryDisplaySettingsUniqueness [GDI32.@]
1263  *      GdiEntry13                       [GDI32.@]
1264  */
1265 ULONG WINAPI DdQueryDisplaySettingsUniqueness(VOID)
1266 {
1267     static int warn_once;
1268
1269     if (!warn_once++)
1270         FIXME("stub\n");
1271     return 0;
1272 }