git.oblomov.eu Git - wine/blob - dlls/gdi32/driver.c

   1 /*
   2  * Graphics driver management functions
   3  *
   4  * Copyright 1994 Bob Amstadt
   5  * Copyright 1996, 2001 Alexandre Julliard
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdarg.h>
  26 #include <string.h>
  27 #include <stdio.h>
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winreg.h"
  31 #include "ddrawgdi.h"
  32 #include "wine/winbase16.h"
  33
  34 #include "gdi_private.h"
  35 #include "wine/unicode.h"
  36 #include "wine/list.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  40
  41 struct graphics_driver
  42 {
  43     struct list             entry;
  44     HMODULE                 module;  /* module handle */
  45     DC_FUNCTIONS            funcs;
  46 };
  47
  48 static struct list drivers = LIST_INIT( drivers );
  49 static struct graphics_driver *display_driver;
  50
  51 static CRITICAL_SECTION driver_section;
  52 static CRITICAL_SECTION_DEBUG critsect_debug =
  53 {
  54     0, 0, &driver_section,
  55     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  56       0, 0, { (DWORD_PTR)(__FILE__ ": driver_section") }
  57 };
  58 static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  59
  60 /**********************************************************************
  61  *           create_driver
  62  *
  63  * Allocate and fill the driver structure for a given module.
  64  */
  65 static struct graphics_driver *create_driver( HMODULE module )
  66 {
  67     struct graphics_driver *driver;
  68
  69     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  70     driver->module = module;
  71
  72     /* fill the function table */
  73     if (module)
  74     {
  75 #define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
  76         GET_FUNC(AbortDoc);
  77         GET_FUNC(AbortPath);
  78         GET_FUNC(AlphaBlend);
  79         GET_FUNC(AngleArc);
  80         GET_FUNC(Arc);
  81         GET_FUNC(ArcTo);
  82         GET_FUNC(BeginPath);
  83         GET_FUNC(BitBlt);
  84         GET_FUNC(ChoosePixelFormat);
  85         GET_FUNC(Chord);
  86         GET_FUNC(CloseFigure);
  87         GET_FUNC(CreateBitmap);
  88         GET_FUNC(CreateDC);
  89         GET_FUNC(CreateDIBSection);
  90         GET_FUNC(DeleteBitmap);
  91         GET_FUNC(DeleteDC);
  92         GET_FUNC(DescribePixelFormat);
  93         GET_FUNC(DeviceCapabilities);
  94         GET_FUNC(Ellipse);
  95         GET_FUNC(EndDoc);
  96         GET_FUNC(EndPage);
  97         GET_FUNC(EndPath);
  98         GET_FUNC(EnumDeviceFonts);
  99         GET_FUNC(EnumICMProfiles);
 100         GET_FUNC(ExcludeClipRect);
 101         GET_FUNC(ExtDeviceMode);
 102         GET_FUNC(ExtEscape);
 103         GET_FUNC(ExtFloodFill);
 104         GET_FUNC(ExtSelectClipRgn);
 105         GET_FUNC(ExtTextOut);
 106         GET_FUNC(FillPath);
 107         GET_FUNC(FillRgn);
 108         GET_FUNC(FlattenPath);
 109         GET_FUNC(FrameRgn);
 110         GET_FUNC(GdiComment);
 111         GET_FUNC(GetBitmapBits);
 112         GET_FUNC(GetCharWidth);
 113         GET_FUNC(GetDIBits);
 114         GET_FUNC(GetDeviceCaps);
 115         GET_FUNC(GetDeviceGammaRamp);
 116         GET_FUNC(GetICMProfile);
 117         GET_FUNC(GetNearestColor);
 118         GET_FUNC(GetPixel);
 119         GET_FUNC(GetPixelFormat);
 120         GET_FUNC(GetSystemPaletteEntries);
 121         GET_FUNC(GetTextExtentExPoint);
 122         GET_FUNC(GetTextMetrics);
 123         GET_FUNC(IntersectClipRect);
 124         GET_FUNC(InvertRgn);
 125         GET_FUNC(LineTo);
 126         GET_FUNC(MoveTo);
 127         GET_FUNC(ModifyWorldTransform);
 128         GET_FUNC(OffsetClipRgn);
 129         GET_FUNC(OffsetViewportOrg);
 130         GET_FUNC(OffsetWindowOrg);
 131         GET_FUNC(PaintRgn);
 132         GET_FUNC(PatBlt);
 133         GET_FUNC(Pie);
 134         GET_FUNC(PolyBezier);
 135         GET_FUNC(PolyBezierTo);
 136         GET_FUNC(PolyDraw);
 137         GET_FUNC(PolyPolygon);
 138         GET_FUNC(PolyPolyline);
 139         GET_FUNC(Polygon);
 140         GET_FUNC(Polyline);
 141         GET_FUNC(PolylineTo);
 142         GET_FUNC(RealizeDefaultPalette);
 143         GET_FUNC(RealizePalette);
 144         GET_FUNC(Rectangle);
 145         GET_FUNC(ResetDC);
 146         GET_FUNC(RestoreDC);
 147         GET_FUNC(RoundRect);
 148         GET_FUNC(SaveDC);
 149         GET_FUNC(ScaleViewportExt);
 150         GET_FUNC(ScaleWindowExt);
 151         GET_FUNC(SelectBitmap);
 152         GET_FUNC(SelectBrush);
 153         GET_FUNC(SelectClipPath);
 154         GET_FUNC(SelectFont);
 155         GET_FUNC(SelectPalette);
 156         GET_FUNC(SelectPen);
 157         GET_FUNC(SetArcDirection);
 158         GET_FUNC(SetBitmapBits);
 159         GET_FUNC(SetBkColor);
 160         GET_FUNC(SetBkMode);
 161         GET_FUNC(SetDCBrushColor);
 162         GET_FUNC(SetDCPenColor);
 163         GET_FUNC(SetDIBColorTable);
 164         GET_FUNC(SetDIBits);
 165         GET_FUNC(SetDIBitsToDevice);
 166         GET_FUNC(SetDeviceClipping);
 167         GET_FUNC(SetDeviceGammaRamp);
 168         GET_FUNC(SetMapMode);
 169         GET_FUNC(SetMapperFlags);
 170         GET_FUNC(SetPixel);
 171         GET_FUNC(SetPixelFormat);
 172         GET_FUNC(SetPolyFillMode);
 173         GET_FUNC(SetROP2);
 174         GET_FUNC(SetRelAbs);
 175         GET_FUNC(SetStretchBltMode);
 176         GET_FUNC(SetTextAlign);
 177         GET_FUNC(SetTextCharacterExtra);
 178         GET_FUNC(SetTextColor);
 179         GET_FUNC(SetTextJustification);
 180         GET_FUNC(SetViewportExt);
 181         GET_FUNC(SetViewportOrg);
 182         GET_FUNC(SetWindowExt);
 183         GET_FUNC(SetWindowOrg);
 184         GET_FUNC(SetWorldTransform);
 185         GET_FUNC(StartDoc);
 186         GET_FUNC(StartPage);
 187         GET_FUNC(StretchBlt);
 188         GET_FUNC(StretchDIBits);
 189         GET_FUNC(StrokeAndFillPath);
 190         GET_FUNC(StrokePath);
 191         GET_FUNC(SwapBuffers);
 192         GET_FUNC(UnrealizePalette);
 193         GET_FUNC(WidenPath);
 194
 195         /* OpenGL32 */
 196         GET_FUNC(wglCreateContext);
 197         GET_FUNC(wglCreateContextAttribsARB);
 198         GET_FUNC(wglDeleteContext);
 199         GET_FUNC(wglGetProcAddress);
 200         GET_FUNC(wglGetPbufferDCARB);
 201         GET_FUNC(wglMakeContextCurrentARB);
 202         GET_FUNC(wglMakeCurrent);
 203         GET_FUNC(wglSetPixelFormatWINE);
 204         GET_FUNC(wglShareLists);
 205         GET_FUNC(wglUseFontBitmapsA);
 206         GET_FUNC(wglUseFontBitmapsW);
 207 #undef GET_FUNC
 208     }
 209     else memset( &driver->funcs, 0, sizeof(driver->funcs) );
 210
 211     return driver;
 212 }
 213
 214
 215 /**********************************************************************
 216  *           DRIVER_get_display_driver
 217  *
 218  * Special case for loading the display driver: get the name from the config file
 219  */
 220 const DC_FUNCTIONS *DRIVER_get_display_driver(void)
 221 {
 222     struct graphics_driver *driver;
 223     char buffer[MAX_PATH], libname[32], *name, *next;
 224     HMODULE module = 0;
 225     HKEY hkey;
 226
 227     if (display_driver) return &display_driver->funcs;  /* already loaded */
 228
 229     strcpy( buffer, "x11" );  /* default value */
 230     /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
 231     if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
 232     {
 233         DWORD type, count = sizeof(buffer);
 234         RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
 235         RegCloseKey( hkey );
 236     }
 237
 238     name = buffer;
 239     while (name)
 240     {
 241         next = strchr( name, ',' );
 242         if (next) *next++ = 0;
 243
 244         snprintf( libname, sizeof(libname), "wine%s.drv", name );
 245         if ((module = LoadLibraryA( libname )) != 0) break;
 246         name = next;
 247     }
 248
 249     if (!(driver = create_driver( module )))
 250     {
 251         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 252         FreeLibrary( module );
 253         ExitProcess(1);
 254     }
 255     if (InterlockedCompareExchangePointer( (void **)&display_driver, driver, NULL ))
 256     {
 257         /* somebody beat us to it */
 258         FreeLibrary( driver->module );
 259         HeapFree( GetProcessHeap(), 0, driver );
 260     }
 261     return &display_driver->funcs;
 262 }
 263
 264
 265 /**********************************************************************
 266  *           DRIVER_load_driver
 267  */
 268 const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name )
 269 {
 270     HMODULE module;
 271     struct graphics_driver *driver, *new_driver;
 272     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 273     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 274
 275     /* display driver is a special case */
 276     if (!strcmpiW( name, displayW ) || !strcmpiW( name, display1W )) return DRIVER_get_display_driver();
 277
 278     if ((module = GetModuleHandleW( name )))
 279     {
 280         if (display_driver && display_driver->module == module) return &display_driver->funcs;
 281         EnterCriticalSection( &driver_section );
 282         LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 283         {
 284             if (driver->module == module) goto done;
 285         }
 286         LeaveCriticalSection( &driver_section );
 287     }
 288
 289     if (!(module = LoadLibraryW( name ))) return NULL;
 290
 291     if (!(new_driver = create_driver( module )))
 292     {
 293         FreeLibrary( module );
 294         return NULL;
 295     }
 296
 297     /* check if someone else added it in the meantime */
 298     EnterCriticalSection( &driver_section );
 299     LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 300     {
 301         if (driver->module != module) continue;
 302         FreeLibrary( module );
 303         HeapFree( GetProcessHeap(), 0, new_driver );
 304         goto done;
 305     }
 306     driver = new_driver;
 307     list_add_head( &drivers, &driver->entry );
 308     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 309 done:
 310     LeaveCriticalSection( &driver_section );
 311     return &driver->funcs;
 312 }
 313
 314
 315 static INT CDECL nulldrv_AbortDoc( PHYSDEV dev )
 316 {
 317     return 0;
 318 }
 319
 320 static BOOL CDECL nulldrv_Arc( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 321                                INT xstart, INT ystart, INT xend, INT yend )
 322 {
 323     return TRUE;
 324 }
 325
 326 static BOOL CDECL nulldrv_Chord( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 327                                  INT xstart, INT ystart, INT xend, INT yend )
 328 {
 329     return TRUE;
 330 }
 331
 332 static BOOL CDECL nulldrv_Ellipse( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 333 {
 334     return TRUE;
 335 }
 336
 337 static INT CDECL nulldrv_EndDoc( PHYSDEV dev )
 338 {
 339     return 0;
 340 }
 341
 342 static INT CDECL nulldrv_EndPage( PHYSDEV dev )
 343 {
 344     return 0;
 345 }
 346
 347 static BOOL CDECL nulldrv_ExtFloodFill( PHYSDEV dev, INT x, INT y, COLORREF color, UINT type )
 348 {
 349     return TRUE;
 350 }
 351
 352 static COLORREF CDECL nulldrv_GetPixel( PHYSDEV dev, INT x, INT y )
 353 {
 354     return 0;
 355 }
 356
 357 static BOOL CDECL nulldrv_LineTo( PHYSDEV dev, INT x, INT y )
 358 {
 359     return TRUE;
 360 }
 361
 362 static BOOL CDECL nulldrv_MoveTo( PHYSDEV dev, INT x, INT y )
 363 {
 364     return TRUE;
 365 }
 366
 367 static BOOL CDECL nulldrv_PaintRgn( PHYSDEV dev, HRGN rgn )
 368 {
 369     return TRUE;
 370 }
 371
 372 static BOOL CDECL nulldrv_Pie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 373                                INT xstart, INT ystart, INT xend, INT yend )
 374 {
 375     return TRUE;
 376 }
 377
 378 static BOOL CDECL nulldrv_PolyPolygon( PHYSDEV dev, const POINT *points, const INT *counts, UINT polygons )
 379 {
 380     /* FIXME: could be implemented with Polygon */
 381     return TRUE;
 382 }
 383
 384 static BOOL CDECL nulldrv_PolyPolyline( PHYSDEV dev, const POINT *points, const DWORD *counts, DWORD lines )
 385 {
 386     /* FIXME: could be implemented with Polyline */
 387     return TRUE;
 388 }
 389
 390 static BOOL CDECL nulldrv_Polygon( PHYSDEV dev, const POINT *points, INT count )
 391 {
 392     return TRUE;
 393 }
 394
 395 static BOOL CDECL nulldrv_Polyline( PHYSDEV dev, const POINT *points, INT count )
 396 {
 397     return TRUE;
 398 }
 399
 400 static BOOL CDECL nulldrv_Rectangle( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 401 {
 402     return TRUE;
 403 }
 404
 405 static BOOL CDECL nulldrv_RoundRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 406                                      INT ell_width, INT ell_height )
 407 {
 408     return TRUE;
 409 }
 410
 411 static COLORREF CDECL nulldrv_SetPixel( PHYSDEV dev, INT x, INT y, COLORREF color )
 412 {
 413     return color;
 414 }
 415
 416 static INT CDECL nulldrv_StartDoc( PHYSDEV dev, const DOCINFOW *info )
 417 {
 418     return 0;
 419 }
 420
 421 static INT CDECL nulldrv_StartPage( PHYSDEV dev )
 422 {
 423     return 1;
 424 }
 425
 426 const DC_FUNCTIONS null_driver =
 427 {
 428     nulldrv_AbortDoc,                   /* pAbortDoc */
 429     NULL,                               /* pAbortPath */
 430     NULL,                               /* pAlphaBlend */
 431     nulldrv_AngleArc,                   /* pAngleArc */
 432     nulldrv_Arc,                        /* pArc */
 433     nulldrv_ArcTo,                      /* pArcTo */
 434     NULL,                               /* pBeginPath */
 435     NULL,                               /* pBitBlt */
 436     NULL,                               /* pChoosePixelFormat */
 437     nulldrv_Chord,                      /* pChord */
 438     NULL,                               /* pCloseFigure */
 439     NULL,                               /* pCreateBitmap */
 440     NULL,                               /* pCreateDC */
 441     NULL,                               /* pCreateDIBSection */
 442     NULL,                               /* pDeleteBitmap */
 443     NULL,                               /* pDeleteDC */
 444     NULL,                               /* pDeleteObject */
 445     NULL,                               /* pDescribePixelFormat */
 446     NULL,                               /* pDeviceCapabilities */
 447     nulldrv_Ellipse,                    /* pEllipse */
 448     nulldrv_EndDoc,                     /* pEndDoc */
 449     nulldrv_EndPage,                    /* pEndPage */
 450     NULL,                               /* pEndPath */
 451     NULL,                               /* pEnumICMProfiles */
 452     NULL,                               /* pEnumDeviceFonts */
 453     NULL,                               /* pExcludeClipRect */
 454     NULL,                               /* pExtDeviceMode */
 455     NULL,                               /* pExtEscape */
 456     nulldrv_ExtFloodFill,               /* pExtFloodFill */
 457     NULL,                               /* pExtSelectClipRgn */
 458     NULL,                               /* pExtTextOut */
 459     NULL,                               /* pFillPath */
 460     nulldrv_FillRgn,                    /* pFillRgn */
 461     NULL,                               /* pFlattenPath */
 462     nulldrv_FrameRgn,                   /* pFrameRgn */
 463     NULL,                               /* pGdiComment */
 464     NULL,                               /* pGetBitmapBits */
 465     NULL,                               /* pGetCharWidth */
 466     NULL,                               /* pGetDIBits */
 467     NULL,                               /* pGetDeviceCaps */
 468     NULL,                               /* pGetDeviceGammaRamp */
 469     NULL,                               /* pGetICMProfile */
 470     NULL,                               /* pGetNearestColor */
 471     nulldrv_GetPixel,                   /* pGetPixel */
 472     NULL,                               /* pGetPixelFormat */
 473     NULL,                               /* pGetSystemPaletteEntries */
 474     NULL,                               /* pGetTextExtentExPoint */
 475     NULL,                               /* pGetTextMetrics */
 476     NULL,                               /* pIntersectClipRect */
 477     nulldrv_InvertRgn,                  /* pInvertRgn */
 478     nulldrv_LineTo,                     /* pLineTo */
 479     NULL,                               /* pModifyWorldTransform */
 480     nulldrv_MoveTo,                     /* pMoveTo */
 481     NULL,                               /* pOffsetClipRgn */
 482     NULL,                               /* pOffsetViewportOrg */
 483     NULL,                               /* pOffsetWindowOrg */
 484     nulldrv_PaintRgn,                   /* pPaintRgn */
 485     NULL,                               /* pPatBlt */
 486     nulldrv_Pie,                        /* pPie */
 487     nulldrv_PolyBezier,                 /* pPolyBezier */
 488     nulldrv_PolyBezierTo,               /* pPolyBezierTo */
 489     nulldrv_PolyDraw,                   /* pPolyDraw */
 490     nulldrv_PolyPolygon,                /* pPolyPolygon */
 491     nulldrv_PolyPolyline,               /* pPolyPolyline */
 492     nulldrv_Polygon,                    /* pPolygon */
 493     nulldrv_Polyline,                   /* pPolyline */
 494     nulldrv_PolylineTo,                 /* pPolylineTo */
 495     NULL,                               /* pRealizeDefaultPalette */
 496     NULL,                               /* pRealizePalette */
 497     nulldrv_Rectangle,                  /* pRectangle */
 498     NULL,                               /* pResetDC */
 499     NULL,                               /* pRestoreDC */
 500     nulldrv_RoundRect,                  /* pRoundRect */
 501     NULL,                               /* pSaveDC */
 502     NULL,                               /* pScaleViewportExt */
 503     NULL,                               /* pScaleWindowExt */
 504     NULL,                               /* pSelectBitmap */
 505     NULL,                               /* pSelectBrush */
 506     NULL,                               /* pSelectClipPath */
 507     NULL,                               /* pSelectFont */
 508     NULL,                               /* pSelectPalette */
 509     NULL,                               /* pSelectPen */
 510     NULL,                               /* pSetArcDirection */
 511     NULL,                               /* pSetBitmapBits */
 512     NULL,                               /* pSetBkColor */
 513     NULL,                               /* pSetBkMode */
 514     NULL,                               /* pSetDCBrushColor */
 515     NULL,                               /* pSetDCPenColor */
 516     NULL,                               /* pSetDIBColorTable */
 517     NULL,                               /* pSetDIBits */
 518     NULL,                               /* pSetDIBitsToDevice */
 519     NULL,                               /* pSetDeviceClipping */
 520     NULL,                               /* pSetDeviceGammaRamp */
 521     NULL,                               /* pSetMapMode */
 522     NULL,                               /* pSetMapperFlags */
 523     nulldrv_SetPixel,                   /* pSetPixel */
 524     NULL,                               /* pSetPixelFormat */
 525     NULL,                               /* pSetPolyFillMode */
 526     NULL,                               /* pSetROP2 */
 527     NULL,                               /* pSetRelAbs */
 528     NULL,                               /* pSetStretchBltMode */
 529     NULL,                               /* pSetTextAlign */
 530     NULL,                               /* pSetTextCharacterExtra */
 531     NULL,                               /* pSetTextColor */
 532     NULL,                               /* pSetTextJustification */
 533     NULL,                               /* pSetViewportExt */
 534     NULL,                               /* pSetViewportOrg */
 535     NULL,                               /* pSetWindowExt */
 536     NULL,                               /* pSetWindowOrg */
 537     NULL,                               /* pSetWorldTransform */
 538     nulldrv_StartDoc,                   /* pStartDoc */
 539     nulldrv_StartPage,                  /* pStartPage */
 540     NULL,                               /* pStretchBlt */
 541     NULL,                               /* pStretchDIBits */
 542     NULL,                               /* pStrokeAndFillPath */
 543     NULL,                               /* pStrokePath */
 544     NULL,                               /* pSwapBuffers */
 545     NULL,                               /* pUnrealizePalette */
 546     NULL,                               /* pWidenPath */
 547     NULL,                               /* pwglCopyContext */
 548     NULL,                               /* pwglCreateContext */
 549     NULL,                               /* pwglCreateContextAttribsARB */
 550     NULL,                               /* pwglDeleteContext */
 551     NULL,                               /* pwglGetProcAddress */
 552     NULL,                               /* pwglGetPbufferDCARB */
 553     NULL,                               /* pwglMakeCurrent */
 554     NULL,                               /* pwglMakeContextCurrentARB */
 555     NULL,                               /* pwglSetPixelFormatWINE */
 556     NULL,                               /* pwglShareLists */
 557     NULL,                               /* pwglUseFontBitmapsA */
 558     NULL,                               /* pwglUseFontBitmapsW */
 559 };
 560
 561
 562 /*****************************************************************************
 563  *      DRIVER_GetDriverName
 564  *
 565  */
 566 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 567 {
 568     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 569     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 570     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 571     static const WCHAR empty_strW[] = { 0 };
 572     WCHAR *p;
 573
 574     /* display is a special case */
 575     if (!strcmpiW( device, displayW ) ||
 576         !strcmpiW( device, display1W ))
 577     {
 578         lstrcpynW( driver, displayW, size );
 579         return TRUE;
 580     }
 581
 582     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 583     if(!size) {
 584         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 585         return FALSE;
 586     }
 587     p = strchrW(driver, ',');
 588     if(!p)
 589     {
 590         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 591         return FALSE;
 592     }
 593     *p = 0;
 594     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 595     return TRUE;
 596 }
 597
 598
 599 /***********************************************************************
 600  *           GdiConvertToDevmodeW    (GDI32.@)
 601  */
 602 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 603 {
 604     DEVMODEW *dmW;
 605     WORD dmW_size, dmA_size;
 606
 607     dmA_size = dmA->dmSize;
 608
 609     /* this is the minimal dmSize that XP accepts */
 610     if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
 611         return NULL;
 612
 613     if (dmA_size > sizeof(DEVMODEA))
 614         dmA_size = sizeof(DEVMODEA);
 615
 616     dmW_size = dmA_size + CCHDEVICENAME;
 617     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 618         dmW_size += CCHFORMNAME;
 619
 620     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 621     if (!dmW) return NULL;
 622
 623     MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
 624                                    dmW->dmDeviceName, CCHDEVICENAME);
 625     /* copy slightly more, to avoid long computations */
 626     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);
 627
 628     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 629     {
 630         if (dmA->dmFields & DM_FORMNAME)
 631             MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
 632                                        dmW->dmFormName, CCHFORMNAME);
 633         else
 634             dmW->dmFormName[0] = 0;
 635
 636         if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
 637             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
 638     }
 639
 640     if (dmA->dmDriverExtra)
 641         memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA_size, dmA->dmDriverExtra);
 642
 643     dmW->dmSize = dmW_size;
 644
 645     return dmW;
 646 }
 647
 648
 649 /*****************************************************************************
 650  *      @ [GDI32.100]
 651  *
 652  * This should thunk to 16-bit and simply call the proc with the given args.
 653  */
 654 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 655                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 656 {
 657     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 658     return -1;
 659 }
 660
 661 /*****************************************************************************
 662  *      @ [GDI32.101]
 663  *
 664  * This should load the correct driver for lpszDevice and calls this driver's
 665  * ExtDeviceModePropSheet proc.
 666  *
 667  * Note: The driver calls a callback routine for each property sheet page; these
 668  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 669  * The layout of this structure is:
 670  *
 671  * struct
 672  * {
 673  *   DWORD  nPages;
 674  *   DWORD  unknown;
 675  *   HPROPSHEETPAGE  pages[10];
 676  * };
 677  */
 678 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 679                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 680 {
 681     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 682     return -1;
 683 }
 684
 685 /*****************************************************************************
 686  *      @ [GDI32.102]
 687  *
 688  * This should load the correct driver for lpszDevice and call this driver's
 689  * ExtDeviceMode proc.
 690  *
 691  * FIXME: convert ExtDeviceMode to unicode in the driver interface
 692  */
 693 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 694                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 695                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 696                                     LPSTR lpszProfile, DWORD fwMode )
 697 {
 698     WCHAR deviceW[300];
 699     WCHAR bufW[300];
 700     char buf[300];
 701     HDC hdc;
 702     DC *dc;
 703     INT ret = -1;
 704
 705     TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
 706           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 707
 708     if (!lpszDevice) return -1;
 709     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 710
 711     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 712
 713     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 714
 715     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 716
 717     if ((dc = get_dc_ptr( hdc )))
 718     {
 719         if (dc->funcs->pExtDeviceMode)
 720             ret = dc->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 721                                              lpdmInput, lpszProfile, fwMode );
 722         release_dc_ptr( dc );
 723     }
 724     DeleteDC( hdc );
 725     return ret;
 726 }
 727
 728 /****************************************************************************
 729  *      @ [GDI32.103]
 730  *
 731  * This should load the correct driver for lpszDevice and calls this driver's
 732  * AdvancedSetupDialog proc.
 733  */
 734 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 735                                           LPDEVMODEA devin, LPDEVMODEA devout )
 736 {
 737     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 738     return -1;
 739 }
 740
 741 /*****************************************************************************
 742  *      @ [GDI32.104]
 743  *
 744  * This should load the correct driver for lpszDevice and calls this driver's
 745  * DeviceCapabilities proc.
 746  *
 747  * FIXME: convert DeviceCapabilities to unicode in the driver interface
 748  */
 749 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 750                                            WORD fwCapability, LPSTR lpszOutput,
 751                                            LPDEVMODEA lpdm )
 752 {
 753     WCHAR deviceW[300];
 754     WCHAR bufW[300];
 755     char buf[300];
 756     HDC hdc;
 757     DC *dc;
 758     INT ret = -1;
 759
 760     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 761
 762     if (!lpszDevice) return -1;
 763     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 764
 765     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 766
 767     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 768
 769     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 770
 771     if ((dc = get_dc_ptr( hdc )))
 772     {
 773         if (dc->funcs->pDeviceCapabilities)
 774             ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
 775                                                   fwCapability, lpszOutput, lpdm );
 776         release_dc_ptr( dc );
 777     }
 778     DeleteDC( hdc );
 779     return ret;
 780 }
 781
 782
 783 /************************************************************************
 784  *             Escape  [GDI32.@]
 785  */
 786 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
 787 {
 788     INT ret;
 789     POINT *pt;
 790
 791     switch (escape)
 792     {
 793     case ABORTDOC:
 794         return AbortDoc( hdc );
 795
 796     case ENDDOC:
 797         return EndDoc( hdc );
 798
 799     case GETPHYSPAGESIZE:
 800         pt = out_data;
 801         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
 802         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
 803         return 1;
 804
 805     case GETPRINTINGOFFSET:
 806         pt = out_data;
 807         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
 808         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
 809         return 1;
 810
 811     case GETSCALINGFACTOR:
 812         pt = out_data;
 813         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
 814         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
 815         return 1;
 816
 817     case NEWFRAME:
 818         return EndPage( hdc );
 819
 820     case SETABORTPROC:
 821         return SetAbortProc( hdc, (ABORTPROC)in_data );
 822
 823     case STARTDOC:
 824         {
 825             DOCINFOA doc;
 826             char *name = NULL;
 827
 828             /* in_data may not be 0 terminated so we must copy it */
 829             if (in_data)
 830             {
 831                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
 832                 memcpy( name, in_data, in_count );
 833                 name[in_count] = 0;
 834             }
 835             /* out_data is actually a pointer to the DocInfo structure and used as
 836              * a second input parameter */
 837             if (out_data) doc = *(DOCINFOA *)out_data;
 838             else
 839             {
 840                 doc.cbSize = sizeof(doc);
 841                 doc.lpszOutput = NULL;
 842                 doc.lpszDatatype = NULL;
 843                 doc.fwType = 0;
 844             }
 845             doc.lpszDocName = name;
 846             ret = StartDocA( hdc, &doc );
 847             HeapFree( GetProcessHeap(), 0, name );
 848             if (ret > 0) ret = StartPage( hdc );
 849             return ret;
 850         }
 851
 852     case QUERYESCSUPPORT:
 853         {
 854             const INT *ptr = (const INT *)in_data;
 855             if (in_count < sizeof(INT)) return 0;
 856             switch(*ptr)
 857             {
 858             case ABORTDOC:
 859             case ENDDOC:
 860             case GETPHYSPAGESIZE:
 861             case GETPRINTINGOFFSET:
 862             case GETSCALINGFACTOR:
 863             case NEWFRAME:
 864             case QUERYESCSUPPORT:
 865             case SETABORTPROC:
 866             case STARTDOC:
 867                 return TRUE;
 868             }
 869             break;
 870         }
 871     }
 872
 873     /* if not handled internally, pass it to the driver */
 874     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
 875 }
 876
 877
 878 /******************************************************************************
 879  *              ExtEscape       [GDI32.@]
 880  *
 881  * Access capabilities of a particular device that are not available through GDI.
 882  *
 883  * PARAMS
 884  *    hdc         [I] Handle to device context
 885  *    nEscape     [I] Escape function
 886  *    cbInput     [I] Number of bytes in input structure
 887  *    lpszInData  [I] Pointer to input structure
 888  *    cbOutput    [I] Number of bytes in output structure
 889  *    lpszOutData [O] Pointer to output structure
 890  *
 891  * RETURNS
 892  *    Success: >0
 893  *    Not implemented: 0
 894  *    Failure: <0
 895  */
 896 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
 897                       INT cbOutput, LPSTR lpszOutData )
 898 {
 899     INT ret = 0;
 900     DC * dc = get_dc_ptr( hdc );
 901     if (dc)
 902     {
 903         if (dc->funcs->pExtEscape)
 904             ret = dc->funcs->pExtEscape( dc->physDev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
 905         release_dc_ptr( dc );
 906     }
 907     return ret;
 908 }
 909
 910
 911 /*******************************************************************
 912  *      DrawEscape [GDI32.@]
 913  *
 914  *
 915  */
 916 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
 917 {
 918     FIXME("DrawEscape, stub\n");
 919     return 0;
 920 }
 921
 922 /*******************************************************************
 923  *      NamedEscape [GDI32.@]
 924  */
 925 INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
 926                         INT cbOutput, LPSTR lpszOutData )
 927 {
 928     FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
 929           hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
 930           lpszOutData);
 931     return 0;
 932 }
 933
 934 /*******************************************************************
 935  *      DdQueryDisplaySettingsUniqueness [GDI32.@]
 936  *      GdiEntry13                       [GDI32.@]
 937  */
 938 ULONG WINAPI DdQueryDisplaySettingsUniqueness(VOID)
 939 {
 940     static int warn_once;
 941
 942     if (!warn_once++)
 943         FIXME("stub\n");
 944     return 0;
 945 }