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 static const struct wgl_funcs null_wgl_driver;
  54
  55 static CRITICAL_SECTION driver_section;
  56 static CRITICAL_SECTION_DEBUG critsect_debug =
  57 {
  58     0, 0, &driver_section,
  59     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  60       0, 0, { (DWORD_PTR)(__FILE__ ": driver_section") }
  61 };
  62 static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  63
  64 /**********************************************************************
  65  *           create_driver
  66  *
  67  * Allocate and fill the driver structure for a given module.
  68  */
  69 static struct graphics_driver *create_driver( HMODULE module )
  70 {
  71     static const struct gdi_dc_funcs empty_funcs;
  72     const struct gdi_dc_funcs *funcs = NULL;
  73     struct graphics_driver *driver;
  74
  75     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  76     driver->module = module;
  77
  78     if (module)
  79     {
  80         const struct gdi_dc_funcs * (CDECL *wine_get_gdi_driver)( unsigned int version );
  81
  82         if ((wine_get_gdi_driver = (void *)GetProcAddress( module, "wine_get_gdi_driver" )))
  83             funcs = wine_get_gdi_driver( WINE_GDI_DRIVER_VERSION );
  84     }
  85     if (!funcs) funcs = &empty_funcs;
  86     driver->funcs = funcs;
  87     return driver;
  88 }
  89
  90
  91 /**********************************************************************
  92  *           get_display_driver
  93  *
  94  * Special case for loading the display driver: get the name from the config file
  95  */
  96 static const struct gdi_dc_funcs *get_display_driver(void)
  97 {
  98     struct graphics_driver *driver;
  99     char buffer[MAX_PATH], libname[32], *name, *next;
 100     HMODULE module = 0;
 101     HKEY hkey;
 102
 103     if (display_driver) return display_driver->funcs;  /* already loaded */
 104
 105     strcpy( buffer, "x11" );  /* default value */
 106     /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
 107     if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
 108     {
 109         DWORD type, count = sizeof(buffer);
 110         RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
 111         RegCloseKey( hkey );
 112     }
 113
 114     name = buffer;
 115     while (name)
 116     {
 117         next = strchr( name, ',' );
 118         if (next) *next++ = 0;
 119
 120         snprintf( libname, sizeof(libname), "wine%s.drv", name );
 121         if ((module = LoadLibraryA( libname )) != 0) break;
 122         name = next;
 123     }
 124
 125     if (!(driver = create_driver( module )))
 126     {
 127         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 128         FreeLibrary( module );
 129         ExitProcess(1);
 130     }
 131     if (InterlockedCompareExchangePointer( (void **)&display_driver, driver, NULL ))
 132     {
 133         /* somebody beat us to it */
 134         FreeLibrary( driver->module );
 135         HeapFree( GetProcessHeap(), 0, driver );
 136     }
 137     return display_driver->funcs;
 138 }
 139
 140
 141 /**********************************************************************
 142  *           DRIVER_load_driver
 143  */
 144 const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name )
 145 {
 146     HMODULE module;
 147     struct graphics_driver *driver, *new_driver;
 148     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 149     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 150
 151     /* display driver is a special case */
 152     if (!strcmpiW( name, displayW ) || !strcmpiW( name, display1W )) return get_display_driver();
 153
 154     if ((module = GetModuleHandleW( name )))
 155     {
 156         if (display_driver && display_driver->module == module) return display_driver->funcs;
 157         EnterCriticalSection( &driver_section );
 158         LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 159         {
 160             if (driver->module == module) goto done;
 161         }
 162         LeaveCriticalSection( &driver_section );
 163     }
 164
 165     if (!(module = LoadLibraryW( name ))) return NULL;
 166
 167     if (!(new_driver = create_driver( module )))
 168     {
 169         FreeLibrary( module );
 170         return NULL;
 171     }
 172
 173     /* check if someone else added it in the meantime */
 174     EnterCriticalSection( &driver_section );
 175     LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 176     {
 177         if (driver->module != module) continue;
 178         FreeLibrary( module );
 179         HeapFree( GetProcessHeap(), 0, new_driver );
 180         goto done;
 181     }
 182     driver = new_driver;
 183     list_add_head( &drivers, &driver->entry );
 184     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 185 done:
 186     LeaveCriticalSection( &driver_section );
 187     return driver->funcs;
 188 }
 189
 190
 191 static INT nulldrv_AbortDoc( PHYSDEV dev )
 192 {
 193     return 0;
 194 }
 195
 196 static BOOL nulldrv_Arc( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 197                          INT xstart, INT ystart, INT xend, INT yend )
 198 {
 199     return TRUE;
 200 }
 201
 202 static BOOL nulldrv_Chord( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 203                            INT xstart, INT ystart, INT xend, INT yend )
 204 {
 205     return TRUE;
 206 }
 207
 208 static BOOL nulldrv_CreateCompatibleDC( PHYSDEV orig, PHYSDEV *pdev )
 209 {
 210     if (!display_driver || !display_driver->funcs->pCreateCompatibleDC) return TRUE;
 211     return display_driver->funcs->pCreateCompatibleDC( NULL, pdev );
 212 }
 213
 214 static BOOL nulldrv_CreateDC( PHYSDEV *dev, LPCWSTR driver, LPCWSTR device,
 215                               LPCWSTR output, const DEVMODEW *devmode )
 216 {
 217     assert(0);  /* should never be called */
 218     return FALSE;
 219 }
 220
 221 static BOOL nulldrv_DeleteDC( PHYSDEV dev )
 222 {
 223     assert(0);  /* should never be called */
 224     return TRUE;
 225 }
 226
 227 static BOOL nulldrv_DeleteObject( PHYSDEV dev, HGDIOBJ obj )
 228 {
 229     return TRUE;
 230 }
 231
 232 static INT nulldrv_DescribePixelFormat( PHYSDEV dev, INT format, UINT size, PIXELFORMATDESCRIPTOR * descr )
 233 {
 234     return 0;
 235 }
 236
 237 static DWORD nulldrv_DeviceCapabilities( LPSTR buffer, LPCSTR device, LPCSTR port,
 238                                          WORD cap, LPSTR output, DEVMODEA *devmode )
 239 {
 240     return -1;
 241 }
 242
 243 static BOOL nulldrv_Ellipse( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 244 {
 245     return TRUE;
 246 }
 247
 248 static INT nulldrv_EndDoc( PHYSDEV dev )
 249 {
 250     return 0;
 251 }
 252
 253 static INT nulldrv_EndPage( PHYSDEV dev )
 254 {
 255     return 0;
 256 }
 257
 258 static BOOL nulldrv_EnumFonts( PHYSDEV dev, LOGFONTW *logfont, FONTENUMPROCW proc, LPARAM lParam )
 259 {
 260     return TRUE;
 261 }
 262
 263 static INT nulldrv_EnumICMProfiles( PHYSDEV dev, ICMENUMPROCW func, LPARAM lparam )
 264 {
 265     return -1;
 266 }
 267
 268 static INT nulldrv_ExtDeviceMode( LPSTR buffer, HWND hwnd, DEVMODEA *output, LPSTR device,
 269                                   LPSTR port, DEVMODEA *input, LPSTR profile, DWORD mode )
 270 {
 271     return -1;
 272 }
 273
 274 static INT nulldrv_ExtEscape( PHYSDEV dev, INT escape, INT in_size, const void *in_data,
 275                                     INT out_size, void *out_data )
 276 {
 277     return 0;
 278 }
 279
 280 static BOOL nulldrv_ExtFloodFill( PHYSDEV dev, INT x, INT y, COLORREF color, UINT type )
 281 {
 282     return TRUE;
 283 }
 284
 285 static BOOL nulldrv_FontIsLinked( PHYSDEV dev )
 286 {
 287     return FALSE;
 288 }
 289
 290 static BOOL nulldrv_GdiComment( PHYSDEV dev, UINT size, const BYTE *data )
 291 {
 292     return FALSE;
 293 }
 294
 295 static BOOL nulldrv_GdiRealizationInfo( PHYSDEV dev, void *info )
 296 {
 297     return FALSE;
 298 }
 299
 300 static UINT nulldrv_GetBoundsRect( PHYSDEV dev, RECT *rect, UINT flags )
 301 {
 302     return DCB_RESET;
 303 }
 304
 305 static BOOL nulldrv_GetCharABCWidths( PHYSDEV dev, UINT first, UINT last, LPABC abc )
 306 {
 307     return FALSE;
 308 }
 309
 310 static BOOL nulldrv_GetCharABCWidthsI( PHYSDEV dev, UINT first, UINT count, WORD *indices, LPABC abc )
 311 {
 312     return FALSE;
 313 }
 314
 315 static BOOL nulldrv_GetCharWidth( PHYSDEV dev, UINT first, UINT last, INT *buffer )
 316 {
 317     return FALSE;
 318 }
 319
 320 static INT nulldrv_GetDeviceCaps( PHYSDEV dev, INT cap )
 321 {
 322     switch (cap)  /* return meaningful values for some entries */
 323     {
 324     case HORZRES:     return 640;
 325     case VERTRES:     return 480;
 326     case BITSPIXEL:   return 1;
 327     case PLANES:      return 1;
 328     case NUMCOLORS:   return 2;
 329     case ASPECTX:     return 36;
 330     case ASPECTY:     return 36;
 331     case ASPECTXY:    return 51;
 332     case LOGPIXELSX:  return 72;
 333     case LOGPIXELSY:  return 72;
 334     case SIZEPALETTE: return 2;
 335     case TEXTCAPS:    return (TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
 336                               TC_CR_ANY | TC_SF_X_YINDEP | TC_SA_DOUBLE | TC_SA_INTEGER |
 337                               TC_SA_CONTIN | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE | TC_VA_ABLE);
 338     default:          return 0;
 339     }
 340 }
 341
 342 static BOOL nulldrv_GetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 343 {
 344     SetLastError( ERROR_INVALID_PARAMETER );
 345     return FALSE;
 346 }
 347
 348 static DWORD nulldrv_GetFontData( PHYSDEV dev, DWORD table, DWORD offset, LPVOID buffer, DWORD length )
 349 {
 350     return FALSE;
 351 }
 352
 353 static DWORD nulldrv_GetFontUnicodeRanges( PHYSDEV dev, LPGLYPHSET glyphs )
 354 {
 355     return 0;
 356 }
 357
 358 static DWORD nulldrv_GetGlyphIndices( PHYSDEV dev, LPCWSTR str, INT count, LPWORD indices, DWORD flags )
 359 {
 360     return GDI_ERROR;
 361 }
 362
 363 static DWORD nulldrv_GetGlyphOutline( PHYSDEV dev, UINT ch, UINT format, LPGLYPHMETRICS metrics,
 364                                       DWORD size, LPVOID buffer, const MAT2 *mat )
 365 {
 366     return GDI_ERROR;
 367 }
 368
 369 static BOOL nulldrv_GetICMProfile( PHYSDEV dev, LPDWORD size, LPWSTR filename )
 370 {
 371     return FALSE;
 372 }
 373
 374 static DWORD nulldrv_GetImage( PHYSDEV dev, BITMAPINFO *info, struct gdi_image_bits *bits,
 375                                struct bitblt_coords *src )
 376 {
 377     return ERROR_NOT_SUPPORTED;
 378 }
 379
 380 static DWORD nulldrv_GetKerningPairs( PHYSDEV dev, DWORD count, LPKERNINGPAIR pairs )
 381 {
 382     return 0;
 383 }
 384
 385 static UINT nulldrv_GetOutlineTextMetrics( PHYSDEV dev, UINT size, LPOUTLINETEXTMETRICW otm )
 386 {
 387     return 0;
 388 }
 389
 390 static INT nulldrv_GetPixelFormat( HDC hdc )
 391 {
 392     return 0;
 393 }
 394
 395 static UINT nulldrv_GetSystemPaletteEntries( PHYSDEV dev, UINT start, UINT count, PALETTEENTRY *entries )
 396 {
 397     return 0;
 398 }
 399
 400 static UINT nulldrv_GetTextCharsetInfo( PHYSDEV dev, LPFONTSIGNATURE fs, DWORD flags )
 401 {
 402     return DEFAULT_CHARSET;
 403 }
 404
 405 static BOOL nulldrv_GetTextExtentExPoint( PHYSDEV dev, LPCWSTR str, INT count, INT max_ext,
 406                                           INT *fit, INT *dx, SIZE *size )
 407 {
 408     return FALSE;
 409 }
 410
 411 static BOOL nulldrv_GetTextExtentExPointI( PHYSDEV dev, const WORD *indices, INT count, INT max_ext,
 412                                            INT *fit, INT *dx, SIZE *size )
 413 {
 414     return FALSE;
 415 }
 416
 417 static INT nulldrv_GetTextFace( PHYSDEV dev, INT size, LPWSTR name )
 418 {
 419     INT ret = 0;
 420     LOGFONTW font;
 421     HFONT hfont = GetCurrentObject( dev->hdc, OBJ_FONT );
 422
 423     if (GetObjectW( hfont, sizeof(font), &font ))
 424     {
 425         ret = strlenW( font.lfFaceName ) + 1;
 426         if (name)
 427         {
 428             lstrcpynW( name, font.lfFaceName, size );
 429             ret = min( size, ret );
 430         }
 431     }
 432     return ret;
 433 }
 434
 435 static BOOL nulldrv_GetTextMetrics( PHYSDEV dev, TEXTMETRICW *metrics )
 436 {
 437     return FALSE;
 438 }
 439
 440 static BOOL nulldrv_LineTo( PHYSDEV dev, INT x, INT y )
 441 {
 442     return TRUE;
 443 }
 444
 445 static BOOL nulldrv_MoveTo( PHYSDEV dev, INT x, INT y )
 446 {
 447     return TRUE;
 448 }
 449
 450 static BOOL nulldrv_PaintRgn( PHYSDEV dev, HRGN rgn )
 451 {
 452     return TRUE;
 453 }
 454
 455 static BOOL nulldrv_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
 456 {
 457     return TRUE;
 458 }
 459
 460 static BOOL nulldrv_Pie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 461                          INT xstart, INT ystart, INT xend, INT yend )
 462 {
 463     return TRUE;
 464 }
 465
 466 static BOOL nulldrv_PolyPolygon( PHYSDEV dev, const POINT *points, const INT *counts, UINT polygons )
 467 {
 468     return TRUE;
 469 }
 470
 471 static BOOL nulldrv_PolyPolyline( PHYSDEV dev, const POINT *points, const DWORD *counts, DWORD lines )
 472 {
 473     return TRUE;
 474 }
 475
 476 static BOOL nulldrv_Polygon( PHYSDEV dev, const POINT *points, INT count )
 477 {
 478     INT counts[1] = { count };
 479
 480     return PolyPolygon( dev->hdc, points, counts, 1 );
 481 }
 482
 483 static BOOL nulldrv_Polyline( PHYSDEV dev, const POINT *points, INT count )
 484 {
 485     DWORD counts[1] = { count };
 486
 487     if (count < 0) return FALSE;
 488     return PolyPolyline( dev->hdc, points, counts, 1 );
 489 }
 490
 491 static DWORD nulldrv_PutImage( PHYSDEV dev, HRGN clip, BITMAPINFO *info,
 492                                const struct gdi_image_bits *bits, struct bitblt_coords *src,
 493                                struct bitblt_coords *dst, DWORD rop )
 494 {
 495     return ERROR_SUCCESS;
 496 }
 497
 498 static UINT nulldrv_RealizeDefaultPalette( PHYSDEV dev )
 499 {
 500     return 0;
 501 }
 502
 503 static UINT nulldrv_RealizePalette( PHYSDEV dev, HPALETTE palette, BOOL primary )
 504 {
 505     return 0;
 506 }
 507
 508 static BOOL nulldrv_Rectangle( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 509 {
 510     return TRUE;
 511 }
 512
 513 static HDC nulldrv_ResetDC( PHYSDEV dev, const DEVMODEW *devmode )
 514 {
 515     return 0;
 516 }
 517
 518 static BOOL nulldrv_RoundRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 519                                INT ell_width, INT ell_height )
 520 {
 521     return TRUE;
 522 }
 523
 524 static HBITMAP nulldrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
 525 {
 526     return bitmap;
 527 }
 528
 529 static HBRUSH nulldrv_SelectBrush( PHYSDEV dev, HBRUSH brush, const struct brush_pattern *pattern )
 530 {
 531     return brush;
 532 }
 533
 534 static HFONT nulldrv_SelectFont( PHYSDEV dev, HFONT font )
 535 {
 536     return 0;
 537 }
 538
 539 static HPALETTE nulldrv_SelectPalette( PHYSDEV dev, HPALETTE palette, BOOL bkgnd )
 540 {
 541     return palette;
 542 }
 543
 544 static HPEN nulldrv_SelectPen( PHYSDEV dev, HPEN pen, const struct brush_pattern *pattern )
 545 {
 546     return pen;
 547 }
 548
 549 static INT nulldrv_SetArcDirection( PHYSDEV dev, INT dir )
 550 {
 551     return dir;
 552 }
 553
 554 static COLORREF nulldrv_SetBkColor( PHYSDEV dev, COLORREF color )
 555 {
 556     return color;
 557 }
 558
 559 static INT nulldrv_SetBkMode( PHYSDEV dev, INT mode )
 560 {
 561     return mode;
 562 }
 563
 564 static UINT nulldrv_SetBoundsRect( PHYSDEV dev, RECT *rect, UINT flags )
 565 {
 566     return DCB_RESET;
 567 }
 568
 569 static COLORREF nulldrv_SetDCBrushColor( PHYSDEV dev, COLORREF color )
 570 {
 571     return color;
 572 }
 573
 574 static COLORREF nulldrv_SetDCPenColor( PHYSDEV dev, COLORREF color )
 575 {
 576     return color;
 577 }
 578
 579 static void nulldrv_SetDeviceClipping( PHYSDEV dev, HRGN rgn )
 580 {
 581 }
 582
 583 static DWORD nulldrv_SetLayout( PHYSDEV dev, DWORD layout )
 584 {
 585     return layout;
 586 }
 587
 588 static BOOL nulldrv_SetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 589 {
 590     SetLastError( ERROR_INVALID_PARAMETER );
 591     return FALSE;
 592 }
 593
 594 static DWORD nulldrv_SetMapperFlags( PHYSDEV dev, DWORD flags )
 595 {
 596     return flags;
 597 }
 598
 599 static COLORREF nulldrv_SetPixel( PHYSDEV dev, INT x, INT y, COLORREF color )
 600 {
 601     return color;
 602 }
 603
 604 static BOOL nulldrv_SetPixelFormat( PHYSDEV dev, INT format, const PIXELFORMATDESCRIPTOR *descr )
 605 {
 606     return FALSE;
 607 }
 608
 609 static INT nulldrv_SetPolyFillMode( PHYSDEV dev, INT mode )
 610 {
 611     return mode;
 612 }
 613
 614 static INT nulldrv_SetROP2( PHYSDEV dev, INT rop )
 615 {
 616     return rop;
 617 }
 618
 619 static INT nulldrv_SetRelAbs( PHYSDEV dev, INT mode )
 620 {
 621     return mode;
 622 }
 623
 624 static INT nulldrv_SetStretchBltMode( PHYSDEV dev, INT mode )
 625 {
 626     return mode;
 627 }
 628
 629 static UINT nulldrv_SetTextAlign( PHYSDEV dev, UINT align )
 630 {
 631     return align;
 632 }
 633
 634 static INT nulldrv_SetTextCharacterExtra( PHYSDEV dev, INT extra )
 635 {
 636     return extra;
 637 }
 638
 639 static COLORREF nulldrv_SetTextColor( PHYSDEV dev, COLORREF color )
 640 {
 641     return color;
 642 }
 643
 644 static BOOL nulldrv_SetTextJustification( PHYSDEV dev, INT extra, INT breaks )
 645 {
 646     return TRUE;
 647 }
 648
 649 static INT nulldrv_StartDoc( PHYSDEV dev, const DOCINFOW *info )
 650 {
 651     return 0;
 652 }
 653
 654 static INT nulldrv_StartPage( PHYSDEV dev )
 655 {
 656     return 1;
 657 }
 658
 659 static BOOL nulldrv_SwapBuffers( PHYSDEV dev )
 660 {
 661     return TRUE;
 662 }
 663
 664 static BOOL nulldrv_UnrealizePalette( HPALETTE palette )
 665 {
 666     return FALSE;
 667 }
 668
 669 static BOOL nulldrv_wglCopyContext( struct wgl_context *src, struct wgl_context *dst, UINT mask )
 670 {
 671     return FALSE;
 672 }
 673
 674 static struct wgl_context *nulldrv_wglCreateContext( HDC hdc )
 675 {
 676     return 0;
 677 }
 678
 679 static struct wgl_context *nulldrv_wglCreateContextAttribsARB( HDC hdc, struct wgl_context *share_ctx,
 680                                                                const int *attribs )
 681 {
 682     return 0;
 683 }
 684
 685 static void nulldrv_wglDeleteContext( struct wgl_context *context )
 686 {
 687 }
 688
 689 static HDC nulldrv_wglGetCurrentDC( struct wgl_context *context )
 690 {
 691     return 0;
 692 }
 693
 694 static PROC nulldrv_wglGetProcAddress( LPCSTR name )
 695 {
 696     return NULL;
 697 }
 698
 699 static BOOL nulldrv_wglMakeContextCurrentARB( HDC draw_hdc, HDC read_hdc, struct wgl_context *context )
 700 {
 701     return FALSE;
 702 }
 703
 704 static BOOL nulldrv_wglMakeCurrent( HDC hdc, struct wgl_context *context )
 705 {
 706     return FALSE;
 707 }
 708
 709 static BOOL nulldrv_wglShareLists( struct wgl_context *org, struct wgl_context *dst )
 710 {
 711     return FALSE;
 712 }
 713
 714 static const struct wgl_funcs *nulldrv_wine_get_wgl_driver( PHYSDEV dev, UINT version )
 715 {
 716     if (version != WINE_GDI_DRIVER_VERSION)
 717     {
 718         ERR( "version mismatch, opengl32 wants %u but driver has %u\n", version, WINE_GDI_DRIVER_VERSION );
 719         return NULL;
 720     }
 721     return &null_wgl_driver;
 722 }
 723
 724 const struct gdi_dc_funcs null_driver =
 725 {
 726     nulldrv_AbortDoc,                   /* pAbortDoc */
 727     nulldrv_AbortPath,                  /* pAbortPath */
 728     nulldrv_AlphaBlend,                 /* pAlphaBlend */
 729     nulldrv_AngleArc,                   /* pAngleArc */
 730     nulldrv_Arc,                        /* pArc */
 731     nulldrv_ArcTo,                      /* pArcTo */
 732     nulldrv_BeginPath,                  /* pBeginPath */
 733     nulldrv_BlendImage,                 /* pBlendImage */
 734     nulldrv_Chord,                      /* pChord */
 735     nulldrv_CloseFigure,                /* pCloseFigure */
 736     nulldrv_CreateCompatibleDC,         /* pCreateCompatibleDC */
 737     nulldrv_CreateDC,                   /* pCreateDC */
 738     nulldrv_DeleteDC,                   /* pDeleteDC */
 739     nulldrv_DeleteObject,               /* pDeleteObject */
 740     nulldrv_DescribePixelFormat,        /* pDescribePixelFormat */
 741     nulldrv_DeviceCapabilities,         /* pDeviceCapabilities */
 742     nulldrv_Ellipse,                    /* pEllipse */
 743     nulldrv_EndDoc,                     /* pEndDoc */
 744     nulldrv_EndPage,                    /* pEndPage */
 745     nulldrv_EndPath,                    /* pEndPath */
 746     nulldrv_EnumFonts,                  /* pEnumFonts */
 747     nulldrv_EnumICMProfiles,            /* pEnumICMProfiles */
 748     nulldrv_ExcludeClipRect,            /* pExcludeClipRect */
 749     nulldrv_ExtDeviceMode,              /* pExtDeviceMode */
 750     nulldrv_ExtEscape,                  /* pExtEscape */
 751     nulldrv_ExtFloodFill,               /* pExtFloodFill */
 752     nulldrv_ExtSelectClipRgn,           /* pExtSelectClipRgn */
 753     nulldrv_ExtTextOut,                 /* pExtTextOut */
 754     nulldrv_FillPath,                   /* pFillPath */
 755     nulldrv_FillRgn,                    /* pFillRgn */
 756     nulldrv_FlattenPath,                /* pFlattenPath */
 757     nulldrv_FontIsLinked,               /* pFontIsLinked */
 758     nulldrv_FrameRgn,                   /* pFrameRgn */
 759     nulldrv_GdiComment,                 /* pGdiComment */
 760     nulldrv_GdiRealizationInfo,         /* pGdiRealizationInfo */
 761     nulldrv_GetBoundsRect,              /* pGetBoundsRect */
 762     nulldrv_GetCharABCWidths,           /* pGetCharABCWidths */
 763     nulldrv_GetCharABCWidthsI,          /* pGetCharABCWidthsI */
 764     nulldrv_GetCharWidth,               /* pGetCharWidth */
 765     nulldrv_GetDeviceCaps,              /* pGetDeviceCaps */
 766     nulldrv_GetDeviceGammaRamp,         /* pGetDeviceGammaRamp */
 767     nulldrv_GetFontData,                /* pGetFontData */
 768     nulldrv_GetFontUnicodeRanges,       /* pGetFontUnicodeRanges */
 769     nulldrv_GetGlyphIndices,            /* pGetGlyphIndices */
 770     nulldrv_GetGlyphOutline,            /* pGetGlyphOutline */
 771     nulldrv_GetICMProfile,              /* pGetICMProfile */
 772     nulldrv_GetImage,                   /* pGetImage */
 773     nulldrv_GetKerningPairs,            /* pGetKerningPairs */
 774     nulldrv_GetNearestColor,            /* pGetNearestColor */
 775     nulldrv_GetOutlineTextMetrics,      /* pGetOutlineTextMetrics */
 776     nulldrv_GetPixel,                   /* pGetPixel */
 777     nulldrv_GetSystemPaletteEntries,    /* pGetSystemPaletteEntries */
 778     nulldrv_GetTextCharsetInfo,         /* pGetTextCharsetInfo */
 779     nulldrv_GetTextExtentExPoint,       /* pGetTextExtentExPoint */
 780     nulldrv_GetTextExtentExPointI,      /* pGetTextExtentExPointI */
 781     nulldrv_GetTextFace,                /* pGetTextFace */
 782     nulldrv_GetTextMetrics,             /* pGetTextMetrics */
 783     nulldrv_GradientFill,               /* pGradientFill */
 784     nulldrv_IntersectClipRect,          /* pIntersectClipRect */
 785     nulldrv_InvertRgn,                  /* pInvertRgn */
 786     nulldrv_LineTo,                     /* pLineTo */
 787     nulldrv_ModifyWorldTransform,       /* pModifyWorldTransform */
 788     nulldrv_MoveTo,                     /* pMoveTo */
 789     nulldrv_OffsetClipRgn,              /* pOffsetClipRgn */
 790     nulldrv_OffsetViewportOrgEx,        /* pOffsetViewportOrg */
 791     nulldrv_OffsetWindowOrgEx,          /* pOffsetWindowOrg */
 792     nulldrv_PaintRgn,                   /* pPaintRgn */
 793     nulldrv_PatBlt,                     /* pPatBlt */
 794     nulldrv_Pie,                        /* pPie */
 795     nulldrv_PolyBezier,                 /* pPolyBezier */
 796     nulldrv_PolyBezierTo,               /* pPolyBezierTo */
 797     nulldrv_PolyDraw,                   /* pPolyDraw */
 798     nulldrv_PolyPolygon,                /* pPolyPolygon */
 799     nulldrv_PolyPolyline,               /* pPolyPolyline */
 800     nulldrv_Polygon,                    /* pPolygon */
 801     nulldrv_Polyline,                   /* pPolyline */
 802     nulldrv_PolylineTo,                 /* pPolylineTo */
 803     nulldrv_PutImage,                   /* pPutImage */
 804     nulldrv_RealizeDefaultPalette,      /* pRealizeDefaultPalette */
 805     nulldrv_RealizePalette,             /* pRealizePalette */
 806     nulldrv_Rectangle,                  /* pRectangle */
 807     nulldrv_ResetDC,                    /* pResetDC */
 808     nulldrv_RestoreDC,                  /* pRestoreDC */
 809     nulldrv_RoundRect,                  /* pRoundRect */
 810     nulldrv_SaveDC,                     /* pSaveDC */
 811     nulldrv_ScaleViewportExtEx,         /* pScaleViewportExt */
 812     nulldrv_ScaleWindowExtEx,           /* pScaleWindowExt */
 813     nulldrv_SelectBitmap,               /* pSelectBitmap */
 814     nulldrv_SelectBrush,                /* pSelectBrush */
 815     nulldrv_SelectClipPath,             /* pSelectClipPath */
 816     nulldrv_SelectFont,                 /* pSelectFont */
 817     nulldrv_SelectPalette,              /* pSelectPalette */
 818     nulldrv_SelectPen,                  /* pSelectPen */
 819     nulldrv_SetArcDirection,            /* pSetArcDirection */
 820     nulldrv_SetBkColor,                 /* pSetBkColor */
 821     nulldrv_SetBkMode,                  /* pSetBkMode */
 822     nulldrv_SetBoundsRect,              /* pSetBoundsRect */
 823     nulldrv_SetDCBrushColor,            /* pSetDCBrushColor */
 824     nulldrv_SetDCPenColor,              /* pSetDCPenColor */
 825     nulldrv_SetDIBitsToDevice,          /* pSetDIBitsToDevice */
 826     nulldrv_SetDeviceClipping,          /* pSetDeviceClipping */
 827     nulldrv_SetDeviceGammaRamp,         /* pSetDeviceGammaRamp */
 828     nulldrv_SetLayout,                  /* pSetLayout */
 829     nulldrv_SetMapMode,                 /* pSetMapMode */
 830     nulldrv_SetMapperFlags,             /* pSetMapperFlags */
 831     nulldrv_SetPixel,                   /* pSetPixel */
 832     nulldrv_SetPixelFormat,             /* pSetPixelFormat */
 833     nulldrv_SetPolyFillMode,            /* pSetPolyFillMode */
 834     nulldrv_SetROP2,                    /* pSetROP2 */
 835     nulldrv_SetRelAbs,                  /* pSetRelAbs */
 836     nulldrv_SetStretchBltMode,          /* pSetStretchBltMode */
 837     nulldrv_SetTextAlign,               /* pSetTextAlign */
 838     nulldrv_SetTextCharacterExtra,      /* pSetTextCharacterExtra */
 839     nulldrv_SetTextColor,               /* pSetTextColor */
 840     nulldrv_SetTextJustification,       /* pSetTextJustification */
 841     nulldrv_SetViewportExtEx,           /* pSetViewportExt */
 842     nulldrv_SetViewportOrgEx,           /* pSetViewportOrg */
 843     nulldrv_SetWindowExtEx,             /* pSetWindowExt */
 844     nulldrv_SetWindowOrgEx,             /* pSetWindowOrg */
 845     nulldrv_SetWorldTransform,          /* pSetWorldTransform */
 846     nulldrv_StartDoc,                   /* pStartDoc */
 847     nulldrv_StartPage,                  /* pStartPage */
 848     nulldrv_StretchBlt,                 /* pStretchBlt */
 849     nulldrv_StretchDIBits,              /* pStretchDIBits */
 850     nulldrv_StrokeAndFillPath,          /* pStrokeAndFillPath */
 851     nulldrv_StrokePath,                 /* pStrokePath */
 852     nulldrv_SwapBuffers,                /* pSwapBuffers */
 853     nulldrv_UnrealizePalette,           /* pUnrealizePalette */
 854     nulldrv_WidenPath,                  /* pWidenPath */
 855     nulldrv_wine_get_wgl_driver,        /* wine_get_wgl_driver */
 856
 857     GDI_PRIORITY_NULL_DRV               /* priority */
 858 };
 859
 860 static const struct wgl_funcs null_wgl_driver =
 861 {
 862     nulldrv_GetPixelFormat,             /* p_GetPixelFormat */
 863     nulldrv_wglCopyContext,             /* p_wglCopyContext */
 864     nulldrv_wglCreateContext,           /* p_wglCreateContext */
 865     nulldrv_wglCreateContextAttribsARB, /* p_wglCreateContextAttribsARB */
 866     nulldrv_wglDeleteContext,           /* p_wglDeleteContext */
 867     nulldrv_wglGetCurrentDC,            /* p_wglGetCurrentDC */
 868     nulldrv_wglGetProcAddress,          /* p_wglGetProcAddress */
 869     nulldrv_wglMakeContextCurrentARB,   /* p_wglMakeContextCurrentARB */
 870     nulldrv_wglMakeCurrent,             /* p_wglMakeCurrent */
 871     nulldrv_wglShareLists,              /* p_wglShareLists */
 872 };
 873
 874 /*****************************************************************************
 875  *      DRIVER_GetDriverName
 876  *
 877  */
 878 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 879 {
 880     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 881     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 882     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 883     static const WCHAR empty_strW[] = { 0 };
 884     WCHAR *p;
 885
 886     /* display is a special case */
 887     if (!strcmpiW( device, displayW ) ||
 888         !strcmpiW( device, display1W ))
 889     {
 890         lstrcpynW( driver, displayW, size );
 891         return TRUE;
 892     }
 893
 894     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 895     if(!size) {
 896         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 897         return FALSE;
 898     }
 899     p = strchrW(driver, ',');
 900     if(!p)
 901     {
 902         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 903         return FALSE;
 904     }
 905     *p = 0;
 906     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 907     return TRUE;
 908 }
 909
 910
 911 /***********************************************************************
 912  *           GdiConvertToDevmodeW    (GDI32.@)
 913  */
 914 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 915 {
 916     DEVMODEW *dmW;
 917     WORD dmW_size, dmA_size;
 918
 919     dmA_size = dmA->dmSize;
 920
 921     /* this is the minimal dmSize that XP accepts */
 922     if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
 923         return NULL;
 924
 925     if (dmA_size > sizeof(DEVMODEA))
 926         dmA_size = sizeof(DEVMODEA);
 927
 928     dmW_size = dmA_size + CCHDEVICENAME;
 929     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 930         dmW_size += CCHFORMNAME;
 931
 932     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 933     if (!dmW) return NULL;
 934
 935     MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
 936                                    dmW->dmDeviceName, CCHDEVICENAME);
 937     /* copy slightly more, to avoid long computations */
 938     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);
 939
 940     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 941     {
 942         if (dmA->dmFields & DM_FORMNAME)
 943             MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
 944                                        dmW->dmFormName, CCHFORMNAME);
 945         else
 946             dmW->dmFormName[0] = 0;
 947
 948         if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
 949             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
 950     }
 951
 952     if (dmA->dmDriverExtra)
 953         memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA_size, dmA->dmDriverExtra);
 954
 955     dmW->dmSize = dmW_size;
 956
 957     return dmW;
 958 }
 959
 960
 961 /*****************************************************************************
 962  *      @ [GDI32.100]
 963  *
 964  * This should thunk to 16-bit and simply call the proc with the given args.
 965  */
 966 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 967                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 968 {
 969     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 970     return -1;
 971 }
 972
 973 /*****************************************************************************
 974  *      @ [GDI32.101]
 975  *
 976  * This should load the correct driver for lpszDevice and calls this driver's
 977  * ExtDeviceModePropSheet proc.
 978  *
 979  * Note: The driver calls a callback routine for each property sheet page; these
 980  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 981  * The layout of this structure is:
 982  *
 983  * struct
 984  * {
 985  *   DWORD  nPages;
 986  *   DWORD  unknown;
 987  *   HPROPSHEETPAGE  pages[10];
 988  * };
 989  */
 990 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 991                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 992 {
 993     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 994     return -1;
 995 }
 996
 997 /*****************************************************************************
 998  *      @ [GDI32.102]
 999  *
1000  * This should load the correct driver for lpszDevice and call this driver's
1001  * ExtDeviceMode proc.
1002  *
1003  * FIXME: convert ExtDeviceMode to unicode in the driver interface
1004  */
1005 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
1006                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
1007                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
1008                                     LPSTR lpszProfile, DWORD fwMode )
1009 {
1010     WCHAR deviceW[300];
1011     WCHAR bufW[300];
1012     char buf[300];
1013     HDC hdc;
1014     DC *dc;
1015     INT ret = -1;
1016
1017     TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
1018           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
1019
1020     if (!lpszDevice) return -1;
1021     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
1022
1023     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
1024
1025     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
1026
1027     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
1028
1029     if ((dc = get_dc_ptr( hdc )))
1030     {
1031         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pExtDeviceMode );
1032         ret = physdev->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
1033                                               lpdmInput, lpszProfile, fwMode );
1034         release_dc_ptr( dc );
1035     }
1036     DeleteDC( hdc );
1037     return ret;
1038 }
1039
1040 /****************************************************************************
1041  *      @ [GDI32.103]
1042  *
1043  * This should load the correct driver for lpszDevice and calls this driver's
1044  * AdvancedSetupDialog proc.
1045  */
1046 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
1047                                           LPDEVMODEA devin, LPDEVMODEA devout )
1048 {
1049     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
1050     return -1;
1051 }
1052
1053 /*****************************************************************************
1054  *      @ [GDI32.104]
1055  *
1056  * This should load the correct driver for lpszDevice and calls this driver's
1057  * DeviceCapabilities proc.
1058  *
1059  * FIXME: convert DeviceCapabilities to unicode in the driver interface
1060  */
1061 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
1062                                            WORD fwCapability, LPSTR lpszOutput,
1063                                            LPDEVMODEA lpdm )
1064 {
1065     WCHAR deviceW[300];
1066     WCHAR bufW[300];
1067     char buf[300];
1068     HDC hdc;
1069     DC *dc;
1070     INT ret = -1;
1071
1072     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
1073
1074     if (!lpszDevice) return -1;
1075     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
1076
1077     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
1078
1079     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
1080
1081     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
1082
1083     if ((dc = get_dc_ptr( hdc )))
1084     {
1085         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pDeviceCapabilities );
1086         ret = physdev->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
1087                                                    fwCapability, lpszOutput, lpdm );
1088         release_dc_ptr( dc );
1089     }
1090     DeleteDC( hdc );
1091     return ret;
1092 }
1093
1094
1095 /************************************************************************
1096  *             Escape  [GDI32.@]
1097  */
1098 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
1099 {
1100     INT ret;
1101     POINT *pt;
1102
1103     switch (escape)
1104     {
1105     case ABORTDOC:
1106         return AbortDoc( hdc );
1107
1108     case ENDDOC:
1109         return EndDoc( hdc );
1110
1111     case GETPHYSPAGESIZE:
1112         pt = out_data;
1113         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
1114         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
1115         return 1;
1116
1117     case GETPRINTINGOFFSET:
1118         pt = out_data;
1119         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
1120         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
1121         return 1;
1122
1123     case GETSCALINGFACTOR:
1124         pt = out_data;
1125         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
1126         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
1127         return 1;
1128
1129     case NEWFRAME:
1130         return EndPage( hdc );
1131
1132     case SETABORTPROC:
1133         return SetAbortProc( hdc, (ABORTPROC)in_data );
1134
1135     case STARTDOC:
1136         {
1137             DOCINFOA doc;
1138             char *name = NULL;
1139
1140             /* in_data may not be 0 terminated so we must copy it */
1141             if (in_data)
1142             {
1143                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
1144                 memcpy( name, in_data, in_count );
1145                 name[in_count] = 0;
1146             }
1147             /* out_data is actually a pointer to the DocInfo structure and used as
1148              * a second input parameter */
1149             if (out_data) doc = *(DOCINFOA *)out_data;
1150             else
1151             {
1152                 doc.cbSize = sizeof(doc);
1153                 doc.lpszOutput = NULL;
1154                 doc.lpszDatatype = NULL;
1155                 doc.fwType = 0;
1156             }
1157             doc.lpszDocName = name;
1158             ret = StartDocA( hdc, &doc );
1159             HeapFree( GetProcessHeap(), 0, name );
1160             if (ret > 0) ret = StartPage( hdc );
1161             return ret;
1162         }
1163
1164     case QUERYESCSUPPORT:
1165         {
1166             const INT *ptr = (const INT *)in_data;
1167             if (in_count < sizeof(INT)) return 0;
1168             switch(*ptr)
1169             {
1170             case ABORTDOC:
1171             case ENDDOC:
1172             case GETPHYSPAGESIZE:
1173             case GETPRINTINGOFFSET:
1174             case GETSCALINGFACTOR:
1175             case NEWFRAME:
1176             case QUERYESCSUPPORT:
1177             case SETABORTPROC:
1178             case STARTDOC:
1179                 return TRUE;
1180             }
1181             break;
1182         }
1183     }
1184
1185     /* if not handled internally, pass it to the driver */
1186     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
1187 }
1188
1189
1190 /******************************************************************************
1191  *              ExtEscape       [GDI32.@]
1192  *
1193  * Access capabilities of a particular device that are not available through GDI.
1194  *
1195  * PARAMS
1196  *    hdc         [I] Handle to device context
1197  *    nEscape     [I] Escape function
1198  *    cbInput     [I] Number of bytes in input structure
1199  *    lpszInData  [I] Pointer to input structure
1200  *    cbOutput    [I] Number of bytes in output structure
1201  *    lpszOutData [O] Pointer to output structure
1202  *
1203  * RETURNS
1204  *    Success: >0
1205  *    Not implemented: 0
1206  *    Failure: <0
1207  */
1208 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
1209                       INT cbOutput, LPSTR lpszOutData )
1210 {
1211     INT ret = 0;
1212     DC * dc = get_dc_ptr( hdc );
1213
1214     if (dc)
1215     {
1216         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pExtEscape );
1217         update_dc( dc );
1218         ret = physdev->funcs->pExtEscape( physdev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
1219         release_dc_ptr( dc );
1220     }
1221     return ret;
1222 }
1223
1224
1225 /*******************************************************************
1226  *      DrawEscape [GDI32.@]
1227  *
1228  *
1229  */
1230 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
1231 {
1232     FIXME("DrawEscape, stub\n");
1233     return 0;
1234 }
1235
1236 /*******************************************************************
1237  *      NamedEscape [GDI32.@]
1238  */
1239 INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
1240                         INT cbOutput, LPSTR lpszOutData )
1241 {
1242     FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
1243           hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
1244           lpszOutData);
1245     return 0;
1246 }
1247
1248 /*******************************************************************
1249  *      DdQueryDisplaySettingsUniqueness [GDI32.@]
1250  *      GdiEntry13                       [GDI32.@]
1251  */
1252 ULONG WINAPI DdQueryDisplaySettingsUniqueness(VOID)
1253 {
1254     static int warn_once;
1255
1256     if (!warn_once++)
1257         FIXME("stub\n");
1258     return 0;
1259 }