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 "ddrawgdi.h"
  32 #include "wine/winbase16.h"
  33 #include "winternl.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     if (!display_driver)
  98     {
  99         HMODULE user32 = LoadLibraryA( "user32.dll" );
 100         HWND (WINAPI *pGetDesktopWindow)(void) = (void *)GetProcAddress( user32, "GetDesktopWindow" );
 101
 102         if (!pGetDesktopWindow() || !display_driver)
 103         {
 104             WARN( "failed to load the display driver, falling back to null driver\n" );
 105             __wine_set_display_driver( 0 );
 106         }
 107     }
 108     return display_driver->funcs;
 109 }
 110
 111
 112 /**********************************************************************
 113  *           DRIVER_load_driver
 114  */
 115 const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name )
 116 {
 117     HMODULE module;
 118     struct graphics_driver *driver, *new_driver;
 119     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 120     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 121
 122     /* display driver is a special case */
 123     if (!strcmpiW( name, displayW ) || !strcmpiW( name, display1W )) return get_display_driver();
 124
 125     if ((module = GetModuleHandleW( name )))
 126     {
 127         if (display_driver && display_driver->module == module) return display_driver->funcs;
 128
 129         EnterCriticalSection( &driver_section );
 130         LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 131         {
 132             if (driver->module == module) goto done;
 133         }
 134         LeaveCriticalSection( &driver_section );
 135     }
 136
 137     if (!(module = LoadLibraryW( name ))) return NULL;
 138
 139     if (!(new_driver = create_driver( module )))
 140     {
 141         FreeLibrary( module );
 142         return NULL;
 143     }
 144
 145     /* check if someone else added it in the meantime */
 146     EnterCriticalSection( &driver_section );
 147     LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 148     {
 149         if (driver->module != module) continue;
 150         FreeLibrary( module );
 151         HeapFree( GetProcessHeap(), 0, new_driver );
 152         goto done;
 153     }
 154     driver = new_driver;
 155     list_add_head( &drivers, &driver->entry );
 156     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 157 done:
 158     LeaveCriticalSection( &driver_section );
 159     return driver->funcs;
 160 }
 161
 162
 163 /***********************************************************************
 164  *           __wine_set_display_driver    (GDI32.@)
 165  */
 166 void CDECL __wine_set_display_driver( HMODULE module )
 167 {
 168     struct graphics_driver *driver;
 169
 170     if (!(driver = create_driver( module )))
 171     {
 172         ERR( "Could not create graphics driver\n" );
 173         ExitProcess(1);
 174     }
 175     if (InterlockedCompareExchangePointer( (void **)&display_driver, driver, NULL ))
 176         HeapFree( GetProcessHeap(), 0, driver );
 177 }
 178
 179
 180 static INT nulldrv_AbortDoc( PHYSDEV dev )
 181 {
 182     return 0;
 183 }
 184
 185 static BOOL nulldrv_Arc( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 186                          INT xstart, INT ystart, INT xend, INT yend )
 187 {
 188     return TRUE;
 189 }
 190
 191 static BOOL nulldrv_Chord( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 192                            INT xstart, INT ystart, INT xend, INT yend )
 193 {
 194     return TRUE;
 195 }
 196
 197 static BOOL nulldrv_CreateCompatibleDC( PHYSDEV orig, PHYSDEV *pdev )
 198 {
 199     if (!display_driver || !display_driver->funcs->pCreateCompatibleDC) return TRUE;
 200     return display_driver->funcs->pCreateCompatibleDC( NULL, pdev );
 201 }
 202
 203 static BOOL nulldrv_CreateDC( PHYSDEV *dev, LPCWSTR driver, LPCWSTR device,
 204                               LPCWSTR output, const DEVMODEW *devmode )
 205 {
 206     assert(0);  /* should never be called */
 207     return FALSE;
 208 }
 209
 210 static BOOL nulldrv_DeleteDC( PHYSDEV dev )
 211 {
 212     assert(0);  /* should never be called */
 213     return TRUE;
 214 }
 215
 216 static BOOL nulldrv_DeleteObject( PHYSDEV dev, HGDIOBJ obj )
 217 {
 218     return TRUE;
 219 }
 220
 221 static DWORD nulldrv_DeviceCapabilities( LPSTR buffer, LPCSTR device, LPCSTR port,
 222                                          WORD cap, LPSTR output, DEVMODEA *devmode )
 223 {
 224     return -1;
 225 }
 226
 227 static BOOL nulldrv_Ellipse( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 228 {
 229     return TRUE;
 230 }
 231
 232 static INT nulldrv_EndDoc( PHYSDEV dev )
 233 {
 234     return 0;
 235 }
 236
 237 static INT nulldrv_EndPage( PHYSDEV dev )
 238 {
 239     return 0;
 240 }
 241
 242 static BOOL nulldrv_EnumFonts( PHYSDEV dev, LOGFONTW *logfont, FONTENUMPROCW proc, LPARAM lParam )
 243 {
 244     return TRUE;
 245 }
 246
 247 static INT nulldrv_EnumICMProfiles( PHYSDEV dev, ICMENUMPROCW func, LPARAM lparam )
 248 {
 249     return -1;
 250 }
 251
 252 static INT nulldrv_ExtDeviceMode( LPSTR buffer, HWND hwnd, DEVMODEA *output, LPSTR device,
 253                                   LPSTR port, DEVMODEA *input, LPSTR profile, DWORD mode )
 254 {
 255     return -1;
 256 }
 257
 258 static INT nulldrv_ExtEscape( PHYSDEV dev, INT escape, INT in_size, const void *in_data,
 259                                     INT out_size, void *out_data )
 260 {
 261     return 0;
 262 }
 263
 264 static BOOL nulldrv_ExtFloodFill( PHYSDEV dev, INT x, INT y, COLORREF color, UINT type )
 265 {
 266     return TRUE;
 267 }
 268
 269 static BOOL nulldrv_FontIsLinked( PHYSDEV dev )
 270 {
 271     return FALSE;
 272 }
 273
 274 static BOOL nulldrv_GdiComment( PHYSDEV dev, UINT size, const BYTE *data )
 275 {
 276     return FALSE;
 277 }
 278
 279 static UINT nulldrv_GetBoundsRect( PHYSDEV dev, RECT *rect, UINT flags )
 280 {
 281     return DCB_RESET;
 282 }
 283
 284 static BOOL nulldrv_GetCharABCWidths( PHYSDEV dev, UINT first, UINT last, LPABC abc )
 285 {
 286     return FALSE;
 287 }
 288
 289 static BOOL nulldrv_GetCharABCWidthsI( PHYSDEV dev, UINT first, UINT count, WORD *indices, LPABC abc )
 290 {
 291     return FALSE;
 292 }
 293
 294 static BOOL nulldrv_GetCharWidth( PHYSDEV dev, UINT first, UINT last, INT *buffer )
 295 {
 296     return FALSE;
 297 }
 298
 299 static INT nulldrv_GetDeviceCaps( PHYSDEV dev, INT cap )
 300 {
 301     static int screen_dpi;
 302     int bpp;
 303
 304     switch (cap)
 305     {
 306     case DRIVERVERSION:   return 0x4000;
 307     case TECHNOLOGY:      return DT_RASDISPLAY;
 308     case HORZSIZE:        return MulDiv( GetDeviceCaps( dev->hdc, HORZRES ), 254,
 309                                          GetDeviceCaps( dev->hdc, LOGPIXELSX ) * 10 );
 310     case VERTSIZE:        return MulDiv( GetDeviceCaps( dev->hdc, VERTRES ), 254,
 311                                          GetDeviceCaps( dev->hdc, LOGPIXELSY ) * 10 );
 312     case HORZRES:         return 640;
 313     case VERTRES:         return 480;
 314     case BITSPIXEL:       return 32;
 315     case PLANES:          return 1;
 316     case NUMBRUSHES:      return -1;
 317     case NUMPENS:         return -1;
 318     case NUMMARKERS:      return 0;
 319     case NUMFONTS:        return 0;
 320     case PDEVICESIZE:     return 0;
 321     case CURVECAPS:       return (CC_CIRCLES | CC_PIE | CC_CHORD | CC_ELLIPSES | CC_WIDE |
 322                                   CC_STYLED | CC_WIDESTYLED | CC_INTERIORS | CC_ROUNDRECT);
 323     case LINECAPS:        return (LC_POLYLINE | LC_MARKER | LC_POLYMARKER | LC_WIDE |
 324                                   LC_STYLED | LC_WIDESTYLED | LC_INTERIORS);
 325     case POLYGONALCAPS:   return (PC_POLYGON | PC_RECTANGLE | PC_WINDPOLYGON | PC_SCANLINE |
 326                                   PC_WIDE | PC_STYLED | PC_WIDESTYLED | PC_INTERIORS);
 327     case TEXTCAPS:        return (TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
 328                                   TC_CR_ANY | TC_SF_X_YINDEP | TC_SA_DOUBLE | TC_SA_INTEGER |
 329                                   TC_SA_CONTIN | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE | TC_VA_ABLE);
 330     case CLIPCAPS:        return CP_RECTANGLE;
 331     case RASTERCAPS:      return (RC_BITBLT | RC_BITMAP64 | RC_GDI20_OUTPUT | RC_DI_BITMAP | RC_DIBTODEV |
 332                                   RC_BIGFONT | RC_STRETCHBLT | RC_FLOODFILL | RC_STRETCHDIB | RC_DEVBITS |
 333                                   (GetDeviceCaps( dev->hdc, SIZEPALETTE ) ? RC_PALETTE : 0));
 334     case ASPECTX:         return 36;
 335     case ASPECTY:         return 36;
 336     case ASPECTXY:        return (int)(hypot( GetDeviceCaps( dev->hdc, ASPECTX ),
 337                                               GetDeviceCaps( dev->hdc, ASPECTY )) + 0.5);
 338     case CAPS1:           return 0;
 339     case SIZEPALETTE:     return 0;
 340     case NUMRESERVED:     return 20;
 341     case PHYSICALWIDTH:   return 0;
 342     case PHYSICALHEIGHT:  return 0;
 343     case PHYSICALOFFSETX: return 0;
 344     case PHYSICALOFFSETY: return 0;
 345     case SCALINGFACTORX:  return 0;
 346     case SCALINGFACTORY:  return 0;
 347     case VREFRESH:        return GetDeviceCaps( dev->hdc, TECHNOLOGY ) == DT_RASDISPLAY ? 1 : 0;
 348     case DESKTOPVERTRES:  return GetDeviceCaps( dev->hdc, VERTRES );
 349     case DESKTOPHORZRES:  return GetDeviceCaps( dev->hdc, HORZRES );
 350     case BLTALIGNMENT:    return 0;
 351     case SHADEBLENDCAPS:  return 0;
 352     case COLORMGMTCAPS:   return 0;
 353     case LOGPIXELSX:
 354     case LOGPIXELSY:
 355         if (!screen_dpi && !(screen_dpi = get_dpi())) screen_dpi = 96;
 356         return screen_dpi;
 357     case NUMCOLORS:
 358         bpp = GetDeviceCaps( dev->hdc, BITSPIXEL );
 359         return (bpp > 8) ? -1 : (1 << bpp);
 360     case COLORRES:
 361         /* The observed correspondence between BITSPIXEL and COLORRES is:
 362          * BITSPIXEL: 8  -> COLORRES: 18
 363          * BITSPIXEL: 16 -> COLORRES: 16
 364          * BITSPIXEL: 24 -> COLORRES: 24
 365          * BITSPIXEL: 32 -> COLORRES: 24 */
 366         bpp = GetDeviceCaps( dev->hdc, BITSPIXEL );
 367         return (bpp <= 8) ? 18 : min( 24, bpp );
 368     default:
 369         FIXME("(%p): unsupported capability %d, will return 0\n", dev->hdc, cap );
 370         return 0;
 371     }
 372 }
 373
 374 static BOOL nulldrv_GetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 375 {
 376     SetLastError( ERROR_INVALID_PARAMETER );
 377     return FALSE;
 378 }
 379
 380 static DWORD nulldrv_GetFontData( PHYSDEV dev, DWORD table, DWORD offset, LPVOID buffer, DWORD length )
 381 {
 382     return FALSE;
 383 }
 384
 385 static BOOL nulldrv_GetFontRealizationInfo( PHYSDEV dev, void *info )
 386 {
 387     return FALSE;
 388 }
 389
 390 static DWORD nulldrv_GetFontUnicodeRanges( PHYSDEV dev, LPGLYPHSET glyphs )
 391 {
 392     return 0;
 393 }
 394
 395 static DWORD nulldrv_GetGlyphIndices( PHYSDEV dev, LPCWSTR str, INT count, LPWORD indices, DWORD flags )
 396 {
 397     return GDI_ERROR;
 398 }
 399
 400 static DWORD nulldrv_GetGlyphOutline( PHYSDEV dev, UINT ch, UINT format, LPGLYPHMETRICS metrics,
 401                                       DWORD size, LPVOID buffer, const MAT2 *mat )
 402 {
 403     return GDI_ERROR;
 404 }
 405
 406 static BOOL nulldrv_GetICMProfile( PHYSDEV dev, LPDWORD size, LPWSTR filename )
 407 {
 408     return FALSE;
 409 }
 410
 411 static DWORD nulldrv_GetImage( PHYSDEV dev, BITMAPINFO *info, struct gdi_image_bits *bits,
 412                                struct bitblt_coords *src )
 413 {
 414     return ERROR_NOT_SUPPORTED;
 415 }
 416
 417 static DWORD nulldrv_GetKerningPairs( PHYSDEV dev, DWORD count, LPKERNINGPAIR pairs )
 418 {
 419     return 0;
 420 }
 421
 422 static UINT nulldrv_GetOutlineTextMetrics( PHYSDEV dev, UINT size, LPOUTLINETEXTMETRICW otm )
 423 {
 424     return 0;
 425 }
 426
 427 static UINT nulldrv_GetTextCharsetInfo( PHYSDEV dev, LPFONTSIGNATURE fs, DWORD flags )
 428 {
 429     return DEFAULT_CHARSET;
 430 }
 431
 432 static BOOL nulldrv_GetTextExtentExPoint( PHYSDEV dev, LPCWSTR str, INT count, INT *dx )
 433 {
 434     return FALSE;
 435 }
 436
 437 static BOOL nulldrv_GetTextExtentExPointI( PHYSDEV dev, const WORD *indices, INT count, INT *dx )
 438 {
 439     return FALSE;
 440 }
 441
 442 static INT nulldrv_GetTextFace( PHYSDEV dev, INT size, LPWSTR name )
 443 {
 444     INT ret = 0;
 445     LOGFONTW font;
 446     DC *dc = get_nulldrv_dc( dev );
 447
 448     if (GetObjectW( dc->hFont, sizeof(font), &font ))
 449     {
 450         ret = strlenW( font.lfFaceName ) + 1;
 451         if (name)
 452         {
 453             lstrcpynW( name, font.lfFaceName, size );
 454             ret = min( size, ret );
 455         }
 456     }
 457     return ret;
 458 }
 459
 460 static BOOL nulldrv_GetTextMetrics( PHYSDEV dev, TEXTMETRICW *metrics )
 461 {
 462     return FALSE;
 463 }
 464
 465 static BOOL nulldrv_LineTo( PHYSDEV dev, INT x, INT y )
 466 {
 467     return TRUE;
 468 }
 469
 470 static BOOL nulldrv_MoveTo( PHYSDEV dev, INT x, INT y )
 471 {
 472     return TRUE;
 473 }
 474
 475 static BOOL nulldrv_PaintRgn( PHYSDEV dev, HRGN rgn )
 476 {
 477     return TRUE;
 478 }
 479
 480 static BOOL nulldrv_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
 481 {
 482     return TRUE;
 483 }
 484
 485 static BOOL nulldrv_Pie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 486                          INT xstart, INT ystart, INT xend, INT yend )
 487 {
 488     return TRUE;
 489 }
 490
 491 static BOOL nulldrv_PolyPolygon( PHYSDEV dev, const POINT *points, const INT *counts, UINT polygons )
 492 {
 493     return TRUE;
 494 }
 495
 496 static BOOL nulldrv_PolyPolyline( PHYSDEV dev, const POINT *points, const DWORD *counts, DWORD lines )
 497 {
 498     return TRUE;
 499 }
 500
 501 static BOOL nulldrv_Polygon( PHYSDEV dev, const POINT *points, INT count )
 502 {
 503     INT counts[1] = { count };
 504
 505     return PolyPolygon( dev->hdc, points, counts, 1 );
 506 }
 507
 508 static BOOL nulldrv_Polyline( PHYSDEV dev, const POINT *points, INT count )
 509 {
 510     DWORD counts[1] = { count };
 511
 512     if (count < 0) return FALSE;
 513     return PolyPolyline( dev->hdc, points, counts, 1 );
 514 }
 515
 516 static DWORD nulldrv_PutImage( PHYSDEV dev, HRGN clip, BITMAPINFO *info,
 517                                const struct gdi_image_bits *bits, struct bitblt_coords *src,
 518                                struct bitblt_coords *dst, DWORD rop )
 519 {
 520     return ERROR_SUCCESS;
 521 }
 522
 523 static UINT nulldrv_RealizeDefaultPalette( PHYSDEV dev )
 524 {
 525     return 0;
 526 }
 527
 528 static UINT nulldrv_RealizePalette( PHYSDEV dev, HPALETTE palette, BOOL primary )
 529 {
 530     return 0;
 531 }
 532
 533 static BOOL nulldrv_Rectangle( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 534 {
 535     return TRUE;
 536 }
 537
 538 static HDC nulldrv_ResetDC( PHYSDEV dev, const DEVMODEW *devmode )
 539 {
 540     return 0;
 541 }
 542
 543 static BOOL nulldrv_RoundRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 544                                INT ell_width, INT ell_height )
 545 {
 546     return TRUE;
 547 }
 548
 549 static HBITMAP nulldrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
 550 {
 551     return bitmap;
 552 }
 553
 554 static HBRUSH nulldrv_SelectBrush( PHYSDEV dev, HBRUSH brush, const struct brush_pattern *pattern )
 555 {
 556     return brush;
 557 }
 558
 559 static HPALETTE nulldrv_SelectPalette( PHYSDEV dev, HPALETTE palette, BOOL bkgnd )
 560 {
 561     return palette;
 562 }
 563
 564 static HPEN nulldrv_SelectPen( PHYSDEV dev, HPEN pen, const struct brush_pattern *pattern )
 565 {
 566     return pen;
 567 }
 568
 569 static INT nulldrv_SetArcDirection( PHYSDEV dev, INT dir )
 570 {
 571     return dir;
 572 }
 573
 574 static COLORREF nulldrv_SetBkColor( PHYSDEV dev, COLORREF color )
 575 {
 576     return color;
 577 }
 578
 579 static INT nulldrv_SetBkMode( PHYSDEV dev, INT mode )
 580 {
 581     return mode;
 582 }
 583
 584 static UINT nulldrv_SetBoundsRect( PHYSDEV dev, RECT *rect, UINT flags )
 585 {
 586     return DCB_RESET;
 587 }
 588
 589 static COLORREF nulldrv_SetDCBrushColor( PHYSDEV dev, COLORREF color )
 590 {
 591     return color;
 592 }
 593
 594 static COLORREF nulldrv_SetDCPenColor( PHYSDEV dev, COLORREF color )
 595 {
 596     return color;
 597 }
 598
 599 static void nulldrv_SetDeviceClipping( PHYSDEV dev, HRGN rgn )
 600 {
 601 }
 602
 603 static DWORD nulldrv_SetLayout( PHYSDEV dev, DWORD layout )
 604 {
 605     return layout;
 606 }
 607
 608 static BOOL nulldrv_SetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 609 {
 610     SetLastError( ERROR_INVALID_PARAMETER );
 611     return FALSE;
 612 }
 613
 614 static DWORD nulldrv_SetMapperFlags( PHYSDEV dev, DWORD flags )
 615 {
 616     return flags;
 617 }
 618
 619 static COLORREF nulldrv_SetPixel( PHYSDEV dev, INT x, INT y, COLORREF color )
 620 {
 621     return color;
 622 }
 623
 624 static INT nulldrv_SetPolyFillMode( PHYSDEV dev, INT mode )
 625 {
 626     return mode;
 627 }
 628
 629 static INT nulldrv_SetROP2( PHYSDEV dev, INT rop )
 630 {
 631     return rop;
 632 }
 633
 634 static INT nulldrv_SetRelAbs( PHYSDEV dev, INT mode )
 635 {
 636     return mode;
 637 }
 638
 639 static INT nulldrv_SetStretchBltMode( PHYSDEV dev, INT mode )
 640 {
 641     return mode;
 642 }
 643
 644 static UINT nulldrv_SetTextAlign( PHYSDEV dev, UINT align )
 645 {
 646     return align;
 647 }
 648
 649 static INT nulldrv_SetTextCharacterExtra( PHYSDEV dev, INT extra )
 650 {
 651     return extra;
 652 }
 653
 654 static COLORREF nulldrv_SetTextColor( PHYSDEV dev, COLORREF color )
 655 {
 656     return color;
 657 }
 658
 659 static BOOL nulldrv_SetTextJustification( PHYSDEV dev, INT extra, INT breaks )
 660 {
 661     return TRUE;
 662 }
 663
 664 static INT nulldrv_StartDoc( PHYSDEV dev, const DOCINFOW *info )
 665 {
 666     return 0;
 667 }
 668
 669 static INT nulldrv_StartPage( PHYSDEV dev )
 670 {
 671     return 1;
 672 }
 673
 674 static BOOL nulldrv_UnrealizePalette( HPALETTE palette )
 675 {
 676     return FALSE;
 677 }
 678
 679 static struct opengl_funcs *nulldrv_wine_get_wgl_driver( PHYSDEV dev, UINT version )
 680 {
 681     return (void *)-1;
 682 }
 683
 684 const struct gdi_dc_funcs null_driver =
 685 {
 686     nulldrv_AbortDoc,                   /* pAbortDoc */
 687     nulldrv_AbortPath,                  /* pAbortPath */
 688     nulldrv_AlphaBlend,                 /* pAlphaBlend */
 689     nulldrv_AngleArc,                   /* pAngleArc */
 690     nulldrv_Arc,                        /* pArc */
 691     nulldrv_ArcTo,                      /* pArcTo */
 692     nulldrv_BeginPath,                  /* pBeginPath */
 693     nulldrv_BlendImage,                 /* pBlendImage */
 694     nulldrv_Chord,                      /* pChord */
 695     nulldrv_CloseFigure,                /* pCloseFigure */
 696     nulldrv_CreateCompatibleDC,         /* pCreateCompatibleDC */
 697     nulldrv_CreateDC,                   /* pCreateDC */
 698     nulldrv_DeleteDC,                   /* pDeleteDC */
 699     nulldrv_DeleteObject,               /* pDeleteObject */
 700     nulldrv_DeviceCapabilities,         /* pDeviceCapabilities */
 701     nulldrv_Ellipse,                    /* pEllipse */
 702     nulldrv_EndDoc,                     /* pEndDoc */
 703     nulldrv_EndPage,                    /* pEndPage */
 704     nulldrv_EndPath,                    /* pEndPath */
 705     nulldrv_EnumFonts,                  /* pEnumFonts */
 706     nulldrv_EnumICMProfiles,            /* pEnumICMProfiles */
 707     nulldrv_ExcludeClipRect,            /* pExcludeClipRect */
 708     nulldrv_ExtDeviceMode,              /* pExtDeviceMode */
 709     nulldrv_ExtEscape,                  /* pExtEscape */
 710     nulldrv_ExtFloodFill,               /* pExtFloodFill */
 711     nulldrv_ExtSelectClipRgn,           /* pExtSelectClipRgn */
 712     nulldrv_ExtTextOut,                 /* pExtTextOut */
 713     nulldrv_FillPath,                   /* pFillPath */
 714     nulldrv_FillRgn,                    /* pFillRgn */
 715     nulldrv_FlattenPath,                /* pFlattenPath */
 716     nulldrv_FontIsLinked,               /* pFontIsLinked */
 717     nulldrv_FrameRgn,                   /* pFrameRgn */
 718     nulldrv_GdiComment,                 /* pGdiComment */
 719     nulldrv_GetBoundsRect,              /* pGetBoundsRect */
 720     nulldrv_GetCharABCWidths,           /* pGetCharABCWidths */
 721     nulldrv_GetCharABCWidthsI,          /* pGetCharABCWidthsI */
 722     nulldrv_GetCharWidth,               /* pGetCharWidth */
 723     nulldrv_GetDeviceCaps,              /* pGetDeviceCaps */
 724     nulldrv_GetDeviceGammaRamp,         /* pGetDeviceGammaRamp */
 725     nulldrv_GetFontData,                /* pGetFontData */
 726     nulldrv_GetFontRealizationInfo,     /* pGetFontRealizationInfo */
 727     nulldrv_GetFontUnicodeRanges,       /* pGetFontUnicodeRanges */
 728     nulldrv_GetGlyphIndices,            /* pGetGlyphIndices */
 729     nulldrv_GetGlyphOutline,            /* pGetGlyphOutline */
 730     nulldrv_GetICMProfile,              /* pGetICMProfile */
 731     nulldrv_GetImage,                   /* pGetImage */
 732     nulldrv_GetKerningPairs,            /* pGetKerningPairs */
 733     nulldrv_GetNearestColor,            /* pGetNearestColor */
 734     nulldrv_GetOutlineTextMetrics,      /* pGetOutlineTextMetrics */
 735     nulldrv_GetPixel,                   /* pGetPixel */
 736     nulldrv_GetSystemPaletteEntries,    /* pGetSystemPaletteEntries */
 737     nulldrv_GetTextCharsetInfo,         /* pGetTextCharsetInfo */
 738     nulldrv_GetTextExtentExPoint,       /* pGetTextExtentExPoint */
 739     nulldrv_GetTextExtentExPointI,      /* pGetTextExtentExPointI */
 740     nulldrv_GetTextFace,                /* pGetTextFace */
 741     nulldrv_GetTextMetrics,             /* pGetTextMetrics */
 742     nulldrv_GradientFill,               /* pGradientFill */
 743     nulldrv_IntersectClipRect,          /* pIntersectClipRect */
 744     nulldrv_InvertRgn,                  /* pInvertRgn */
 745     nulldrv_LineTo,                     /* pLineTo */
 746     nulldrv_ModifyWorldTransform,       /* pModifyWorldTransform */
 747     nulldrv_MoveTo,                     /* pMoveTo */
 748     nulldrv_OffsetClipRgn,              /* pOffsetClipRgn */
 749     nulldrv_OffsetViewportOrgEx,        /* pOffsetViewportOrg */
 750     nulldrv_OffsetWindowOrgEx,          /* pOffsetWindowOrg */
 751     nulldrv_PaintRgn,                   /* pPaintRgn */
 752     nulldrv_PatBlt,                     /* pPatBlt */
 753     nulldrv_Pie,                        /* pPie */
 754     nulldrv_PolyBezier,                 /* pPolyBezier */
 755     nulldrv_PolyBezierTo,               /* pPolyBezierTo */
 756     nulldrv_PolyDraw,                   /* pPolyDraw */
 757     nulldrv_PolyPolygon,                /* pPolyPolygon */
 758     nulldrv_PolyPolyline,               /* pPolyPolyline */
 759     nulldrv_Polygon,                    /* pPolygon */
 760     nulldrv_Polyline,                   /* pPolyline */
 761     nulldrv_PolylineTo,                 /* pPolylineTo */
 762     nulldrv_PutImage,                   /* pPutImage */
 763     nulldrv_RealizeDefaultPalette,      /* pRealizeDefaultPalette */
 764     nulldrv_RealizePalette,             /* pRealizePalette */
 765     nulldrv_Rectangle,                  /* pRectangle */
 766     nulldrv_ResetDC,                    /* pResetDC */
 767     nulldrv_RestoreDC,                  /* pRestoreDC */
 768     nulldrv_RoundRect,                  /* pRoundRect */
 769     nulldrv_SaveDC,                     /* pSaveDC */
 770     nulldrv_ScaleViewportExtEx,         /* pScaleViewportExt */
 771     nulldrv_ScaleWindowExtEx,           /* pScaleWindowExt */
 772     nulldrv_SelectBitmap,               /* pSelectBitmap */
 773     nulldrv_SelectBrush,                /* pSelectBrush */
 774     nulldrv_SelectClipPath,             /* pSelectClipPath */
 775     nulldrv_SelectFont,                 /* pSelectFont */
 776     nulldrv_SelectPalette,              /* pSelectPalette */
 777     nulldrv_SelectPen,                  /* pSelectPen */
 778     nulldrv_SetArcDirection,            /* pSetArcDirection */
 779     nulldrv_SetBkColor,                 /* pSetBkColor */
 780     nulldrv_SetBkMode,                  /* pSetBkMode */
 781     nulldrv_SetBoundsRect,              /* pSetBoundsRect */
 782     nulldrv_SetDCBrushColor,            /* pSetDCBrushColor */
 783     nulldrv_SetDCPenColor,              /* pSetDCPenColor */
 784     nulldrv_SetDIBitsToDevice,          /* pSetDIBitsToDevice */
 785     nulldrv_SetDeviceClipping,          /* pSetDeviceClipping */
 786     nulldrv_SetDeviceGammaRamp,         /* pSetDeviceGammaRamp */
 787     nulldrv_SetLayout,                  /* pSetLayout */
 788     nulldrv_SetMapMode,                 /* pSetMapMode */
 789     nulldrv_SetMapperFlags,             /* pSetMapperFlags */
 790     nulldrv_SetPixel,                   /* pSetPixel */
 791     nulldrv_SetPolyFillMode,            /* pSetPolyFillMode */
 792     nulldrv_SetROP2,                    /* pSetROP2 */
 793     nulldrv_SetRelAbs,                  /* pSetRelAbs */
 794     nulldrv_SetStretchBltMode,          /* pSetStretchBltMode */
 795     nulldrv_SetTextAlign,               /* pSetTextAlign */
 796     nulldrv_SetTextCharacterExtra,      /* pSetTextCharacterExtra */
 797     nulldrv_SetTextColor,               /* pSetTextColor */
 798     nulldrv_SetTextJustification,       /* pSetTextJustification */
 799     nulldrv_SetViewportExtEx,           /* pSetViewportExt */
 800     nulldrv_SetViewportOrgEx,           /* pSetViewportOrg */
 801     nulldrv_SetWindowExtEx,             /* pSetWindowExt */
 802     nulldrv_SetWindowOrgEx,             /* pSetWindowOrg */
 803     nulldrv_SetWorldTransform,          /* pSetWorldTransform */
 804     nulldrv_StartDoc,                   /* pStartDoc */
 805     nulldrv_StartPage,                  /* pStartPage */
 806     nulldrv_StretchBlt,                 /* pStretchBlt */
 807     nulldrv_StretchDIBits,              /* pStretchDIBits */
 808     nulldrv_StrokeAndFillPath,          /* pStrokeAndFillPath */
 809     nulldrv_StrokePath,                 /* pStrokePath */
 810     nulldrv_UnrealizePalette,           /* pUnrealizePalette */
 811     nulldrv_WidenPath,                  /* pWidenPath */
 812     nulldrv_wine_get_wgl_driver,        /* wine_get_wgl_driver */
 813
 814     GDI_PRIORITY_NULL_DRV               /* priority */
 815 };
 816
 817
 818 /*****************************************************************************
 819  *      DRIVER_GetDriverName
 820  *
 821  */
 822 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 823 {
 824     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 825     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 826     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 827     static const WCHAR empty_strW[] = { 0 };
 828     WCHAR *p;
 829
 830     /* display is a special case */
 831     if (!strcmpiW( device, displayW ) ||
 832         !strcmpiW( device, display1W ))
 833     {
 834         lstrcpynW( driver, displayW, size );
 835         return TRUE;
 836     }
 837
 838     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 839     if(!size) {
 840         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 841         return FALSE;
 842     }
 843     p = strchrW(driver, ',');
 844     if(!p)
 845     {
 846         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 847         return FALSE;
 848     }
 849     *p = 0;
 850     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 851     return TRUE;
 852 }
 853
 854
 855 /***********************************************************************
 856  *           GdiConvertToDevmodeW    (GDI32.@)
 857  */
 858 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 859 {
 860     DEVMODEW *dmW;
 861     WORD dmW_size, dmA_size;
 862
 863     dmA_size = dmA->dmSize;
 864
 865     /* this is the minimal dmSize that XP accepts */
 866     if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
 867         return NULL;
 868
 869     if (dmA_size > sizeof(DEVMODEA))
 870         dmA_size = sizeof(DEVMODEA);
 871
 872     dmW_size = dmA_size + CCHDEVICENAME;
 873     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 874         dmW_size += CCHFORMNAME;
 875
 876     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 877     if (!dmW) return NULL;
 878
 879     MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
 880                                    dmW->dmDeviceName, CCHDEVICENAME);
 881     /* copy slightly more, to avoid long computations */
 882     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);
 883
 884     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 885     {
 886         if (dmA->dmFields & DM_FORMNAME)
 887             MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
 888                                        dmW->dmFormName, CCHFORMNAME);
 889         else
 890             dmW->dmFormName[0] = 0;
 891
 892         if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
 893             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
 894     }
 895
 896     if (dmA->dmDriverExtra)
 897         memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA_size, dmA->dmDriverExtra);
 898
 899     dmW->dmSize = dmW_size;
 900
 901     return dmW;
 902 }
 903
 904
 905 /*****************************************************************************
 906  *      @ [GDI32.100]
 907  *
 908  * This should thunk to 16-bit and simply call the proc with the given args.
 909  */
 910 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 911                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 912 {
 913     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 914     return -1;
 915 }
 916
 917 /*****************************************************************************
 918  *      @ [GDI32.101]
 919  *
 920  * This should load the correct driver for lpszDevice and calls this driver's
 921  * ExtDeviceModePropSheet proc.
 922  *
 923  * Note: The driver calls a callback routine for each property sheet page; these
 924  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 925  * The layout of this structure is:
 926  *
 927  * struct
 928  * {
 929  *   DWORD  nPages;
 930  *   DWORD  unknown;
 931  *   HPROPSHEETPAGE  pages[10];
 932  * };
 933  */
 934 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 935                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 936 {
 937     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 938     return -1;
 939 }
 940
 941 /*****************************************************************************
 942  *      @ [GDI32.102]
 943  *
 944  * This should load the correct driver for lpszDevice and call this driver's
 945  * ExtDeviceMode proc.
 946  *
 947  * FIXME: convert ExtDeviceMode to unicode in the driver interface
 948  */
 949 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 950                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 951                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 952                                     LPSTR lpszProfile, DWORD fwMode )
 953 {
 954     WCHAR deviceW[300];
 955     WCHAR bufW[300];
 956     char buf[300];
 957     HDC hdc;
 958     DC *dc;
 959     INT ret = -1;
 960
 961     TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
 962           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 963
 964     if (!lpszDevice) return -1;
 965     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 966
 967     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 968
 969     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 970
 971     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 972
 973     if ((dc = get_dc_ptr( hdc )))
 974     {
 975         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pExtDeviceMode );
 976         ret = physdev->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 977                                               lpdmInput, lpszProfile, fwMode );
 978         release_dc_ptr( dc );
 979     }
 980     DeleteDC( hdc );
 981     return ret;
 982 }
 983
 984 /****************************************************************************
 985  *      @ [GDI32.103]
 986  *
 987  * This should load the correct driver for lpszDevice and calls this driver's
 988  * AdvancedSetupDialog proc.
 989  */
 990 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 991                                           LPDEVMODEA devin, LPDEVMODEA devout )
 992 {
 993     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 994     return -1;
 995 }
 996
 997 /*****************************************************************************
 998  *      @ [GDI32.104]
 999  *
1000  * This should load the correct driver for lpszDevice and calls this driver's
1001  * DeviceCapabilities proc.
1002  *
1003  * FIXME: convert DeviceCapabilities to unicode in the driver interface
1004  */
1005 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
1006                                            WORD fwCapability, LPSTR lpszOutput,
1007                                            LPDEVMODEA lpdm )
1008 {
1009     WCHAR deviceW[300];
1010     WCHAR bufW[300];
1011     char buf[300];
1012     HDC hdc;
1013     DC *dc;
1014     INT ret = -1;
1015
1016     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
1017
1018     if (!lpszDevice) return -1;
1019     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
1020
1021     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
1022
1023     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
1024
1025     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
1026
1027     if ((dc = get_dc_ptr( hdc )))
1028     {
1029         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pDeviceCapabilities );
1030         ret = physdev->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
1031                                                    fwCapability, lpszOutput, lpdm );
1032         release_dc_ptr( dc );
1033     }
1034     DeleteDC( hdc );
1035     return ret;
1036 }
1037
1038
1039 /************************************************************************
1040  *             Escape  [GDI32.@]
1041  */
1042 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
1043 {
1044     INT ret;
1045     POINT *pt;
1046
1047     switch (escape)
1048     {
1049     case ABORTDOC:
1050         return AbortDoc( hdc );
1051
1052     case ENDDOC:
1053         return EndDoc( hdc );
1054
1055     case GETPHYSPAGESIZE:
1056         pt = out_data;
1057         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
1058         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
1059         return 1;
1060
1061     case GETPRINTINGOFFSET:
1062         pt = out_data;
1063         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
1064         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
1065         return 1;
1066
1067     case GETSCALINGFACTOR:
1068         pt = out_data;
1069         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
1070         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
1071         return 1;
1072
1073     case NEWFRAME:
1074         return EndPage( hdc );
1075
1076     case SETABORTPROC:
1077         return SetAbortProc( hdc, (ABORTPROC)in_data );
1078
1079     case STARTDOC:
1080         {
1081             DOCINFOA doc;
1082             char *name = NULL;
1083
1084             /* in_data may not be 0 terminated so we must copy it */
1085             if (in_data)
1086             {
1087                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
1088                 memcpy( name, in_data, in_count );
1089                 name[in_count] = 0;
1090             }
1091             /* out_data is actually a pointer to the DocInfo structure and used as
1092              * a second input parameter */
1093             if (out_data) doc = *(DOCINFOA *)out_data;
1094             else
1095             {
1096                 doc.cbSize = sizeof(doc);
1097                 doc.lpszOutput = NULL;
1098                 doc.lpszDatatype = NULL;
1099                 doc.fwType = 0;
1100             }
1101             doc.lpszDocName = name;
1102             ret = StartDocA( hdc, &doc );
1103             HeapFree( GetProcessHeap(), 0, name );
1104             if (ret > 0) ret = StartPage( hdc );
1105             return ret;
1106         }
1107
1108     case QUERYESCSUPPORT:
1109         {
1110             DWORD code;
1111
1112             if (in_count < sizeof(SHORT)) return 0;
1113             code = (in_count < sizeof(DWORD)) ? *(const USHORT *)in_data : *(const DWORD *)in_data;
1114             switch (code)
1115             {
1116             case ABORTDOC:
1117             case ENDDOC:
1118             case GETPHYSPAGESIZE:
1119             case GETPRINTINGOFFSET:
1120             case GETSCALINGFACTOR:
1121             case NEWFRAME:
1122             case QUERYESCSUPPORT:
1123             case SETABORTPROC:
1124             case STARTDOC:
1125                 return TRUE;
1126             }
1127             break;
1128         }
1129     }
1130
1131     /* if not handled internally, pass it to the driver */
1132     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
1133 }
1134
1135
1136 /******************************************************************************
1137  *              ExtEscape       [GDI32.@]
1138  *
1139  * Access capabilities of a particular device that are not available through GDI.
1140  *
1141  * PARAMS
1142  *    hdc         [I] Handle to device context
1143  *    nEscape     [I] Escape function
1144  *    cbInput     [I] Number of bytes in input structure
1145  *    lpszInData  [I] Pointer to input structure
1146  *    cbOutput    [I] Number of bytes in output structure
1147  *    lpszOutData [O] Pointer to output structure
1148  *
1149  * RETURNS
1150  *    Success: >0
1151  *    Not implemented: 0
1152  *    Failure: <0
1153  */
1154 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
1155                       INT cbOutput, LPSTR lpszOutData )
1156 {
1157     PHYSDEV physdev;
1158     INT ret;
1159     DC * dc = get_dc_ptr( hdc );
1160
1161     if (!dc) return 0;
1162     update_dc( dc );
1163     physdev = GET_DC_PHYSDEV( dc, pExtEscape );
1164     ret = physdev->funcs->pExtEscape( physdev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
1165     release_dc_ptr( dc );
1166     return ret;
1167 }
1168
1169
1170 /*******************************************************************
1171  *      DrawEscape [GDI32.@]
1172  *
1173  *
1174  */
1175 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
1176 {
1177     FIXME("DrawEscape, stub\n");
1178     return 0;
1179 }
1180
1181 /*******************************************************************
1182  *      NamedEscape [GDI32.@]
1183  */
1184 INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
1185                         INT cbOutput, LPSTR lpszOutData )
1186 {
1187     FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
1188           hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
1189           lpszOutData);
1190     return 0;
1191 }
1192
1193 /*******************************************************************
1194  *      DdQueryDisplaySettingsUniqueness [GDI32.@]
1195  *      GdiEntry13                       [GDI32.@]
1196  */
1197 ULONG WINAPI DdQueryDisplaySettingsUniqueness(VOID)
1198 {
1199     static int warn_once;
1200
1201     if (!warn_once++)
1202         FIXME("stub\n");
1203     return 0;
1204 }
1205
1206 /******************************************************************************
1207  *              D3DKMTOpenAdapterFromHdc [GDI32.@]
1208  */
1209 NTSTATUS WINAPI D3DKMTOpenAdapterFromHdc( void *pData )
1210 {
1211     FIXME("(%p): stub\n", pData);
1212     return STATUS_NO_MEMORY;
1213 }
1214
1215 /******************************************************************************
1216  *              D3DKMTEscape [GDI32.@]
1217  */
1218 NTSTATUS WINAPI D3DKMTEscape( const void *pData )
1219 {
1220     FIXME("(%p): stub\n", pData);
1221     return STATUS_NO_MEMORY;
1222 }