dlls/gdi32/driver.c

   1 /*
   2  * Graphics driver management functions
   3  *
   4  * Copyright 1994 Bob Amstadt
   5  * Copyright 1996, 2001 Alexandre Julliard
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <assert.h>
  26 #include <stdarg.h>
  27 #include <string.h>
  28 #include <stdio.h>
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winreg.h"
  32 #include "ddrawgdi.h"
  33 #include "wine/winbase16.h"
  34
  35 #include "gdi_private.h"
  36 #include "wine/unicode.h"
  37 #include "wine/list.h"
  38 #include "wine/debug.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  41
  42 struct graphics_driver
  43 {
  44     struct list                entry;
  45     HMODULE                    module;  /* module handle */
  46     const struct gdi_dc_funcs *funcs;
  47 };
  48
  49 static struct list drivers = LIST_INIT( drivers );
  50 static struct graphics_driver *display_driver;
  51
  52 const struct gdi_dc_funcs *font_driver = NULL;
  53
  54 static CRITICAL_SECTION driver_section;
  55 static CRITICAL_SECTION_DEBUG critsect_debug =
  56 {
  57     0, 0, &driver_section,
  58     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  59       0, 0, { (DWORD_PTR)(__FILE__ ": driver_section") }
  60 };
  61 static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  62
  63 /**********************************************************************
  64  *           create_driver
  65  *
  66  * Allocate and fill the driver structure for a given module.
  67  */
  68 static struct graphics_driver *create_driver( HMODULE module )
  69 {
  70     static const struct gdi_dc_funcs empty_funcs;
  71     const struct gdi_dc_funcs *funcs = NULL;
  72     struct graphics_driver *driver;
  73
  74     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  75     driver->module = module;
  76
  77     if (module)
  78     {
  79         const struct gdi_dc_funcs * (CDECL *wine_get_gdi_driver)( unsigned int version );
  80
  81         if ((wine_get_gdi_driver = (void *)GetProcAddress( module, "wine_get_gdi_driver" )))
  82             funcs = wine_get_gdi_driver( WINE_GDI_DRIVER_VERSION );
  83     }
  84     if (!funcs) funcs = &empty_funcs;
  85     driver->funcs = funcs;
  86     return driver;
  87 }
  88
  89
  90 /**********************************************************************
  91  *           get_display_driver
  92  *
  93  * Special case for loading the display driver: get the name from the config file
  94  */
  95 static const struct gdi_dc_funcs *get_display_driver(void)
  96 {
  97     struct graphics_driver *driver;
  98     char buffer[MAX_PATH], libname[32], *name, *next;
  99     HMODULE module = 0;
 100     HKEY hkey;
 101
 102     if (display_driver) return display_driver->funcs;  /* already loaded */
 103
 104     strcpy( buffer, "x11" );  /* default value */
 105     /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
 106     if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
 107     {
 108         DWORD type, count = sizeof(buffer);
 109         RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
 110         RegCloseKey( hkey );
 111     }
 112
 113     name = buffer;
 114     while (name)
 115     {
 116         next = strchr( name, ',' );
 117         if (next) *next++ = 0;
 118
 119         snprintf( libname, sizeof(libname), "wine%s.drv", name );
 120         if ((module = LoadLibraryA( libname )) != 0) break;
 121         name = next;
 122     }
 123
 124     if (!(driver = create_driver( module )))
 125     {
 126         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 127         FreeLibrary( module );
 128         ExitProcess(1);
 129     }
 130     if (InterlockedCompareExchangePointer( (void **)&display_driver, driver, NULL ))
 131     {
 132         /* somebody beat us to it */
 133         FreeLibrary( driver->module );
 134         HeapFree( GetProcessHeap(), 0, driver );
 135     }
 136     return display_driver->funcs;
 137 }
 138
 139
 140 /**********************************************************************
 141  *           DRIVER_load_driver
 142  */
 143 const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name )
 144 {
 145     HMODULE module;
 146     struct graphics_driver *driver, *new_driver;
 147     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 148     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 149
 150     /* display driver is a special case */
 151     if (!strcmpiW( name, displayW ) || !strcmpiW( name, display1W )) return get_display_driver();
 152
 153     if ((module = GetModuleHandleW( name )))
 154     {
 155         if (display_driver && display_driver->module == module) return display_driver->funcs;
 156         EnterCriticalSection( &driver_section );
 157         LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 158         {
 159             if (driver->module == module) goto done;
 160         }
 161         LeaveCriticalSection( &driver_section );
 162     }
 163
 164     if (!(module = LoadLibraryW( name ))) return NULL;
 165
 166     if (!(new_driver = create_driver( module )))
 167     {
 168         FreeLibrary( module );
 169         return NULL;
 170     }
 171
 172     /* check if someone else added it in the meantime */
 173     EnterCriticalSection( &driver_section );
 174     LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 175     {
 176         if (driver->module != module) continue;
 177         FreeLibrary( module );
 178         HeapFree( GetProcessHeap(), 0, new_driver );
 179         goto done;
 180     }
 181     driver = new_driver;
 182     list_add_head( &drivers, &driver->entry );
 183     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 184 done:
 185     LeaveCriticalSection( &driver_section );
 186     return driver->funcs;
 187 }
 188
 189
 190 static INT nulldrv_AbortDoc( PHYSDEV dev )
 191 {
 192     return 0;
 193 }
 194
 195 static BOOL nulldrv_Arc( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 196                          INT xstart, INT ystart, INT xend, INT yend )
 197 {
 198     return TRUE;
 199 }
 200
 201 static BOOL nulldrv_Chord( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 202                            INT xstart, INT ystart, INT xend, INT yend )
 203 {
 204     return TRUE;
 205 }
 206
 207 static BOOL nulldrv_CreateCompatibleDC( PHYSDEV orig, PHYSDEV *pdev )
 208 {
 209     if (!display_driver || !display_driver->funcs->pCreateCompatibleDC) return TRUE;
 210     return display_driver->funcs->pCreateCompatibleDC( NULL, pdev );
 211 }
 212
 213 static BOOL nulldrv_CreateDC( PHYSDEV *dev, LPCWSTR driver, LPCWSTR device,
 214                               LPCWSTR output, const DEVMODEW *devmode )
 215 {
 216     assert(0);  /* should never be called */
 217     return FALSE;
 218 }
 219
 220 static BOOL nulldrv_DeleteDC( PHYSDEV dev )
 221 {
 222     assert(0);  /* should never be called */
 223     return TRUE;
 224 }
 225
 226 static BOOL nulldrv_DeleteObject( PHYSDEV dev, HGDIOBJ obj )
 227 {
 228     return TRUE;
 229 }
 230
 231 static DWORD nulldrv_DeviceCapabilities( LPSTR buffer, LPCSTR device, LPCSTR port,
 232                                          WORD cap, LPSTR output, DEVMODEA *devmode )
 233 {
 234     return -1;
 235 }
 236
 237 static BOOL nulldrv_Ellipse( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 238 {
 239     return TRUE;
 240 }
 241
 242 static INT nulldrv_EndDoc( PHYSDEV dev )
 243 {
 244     return 0;
 245 }
 246
 247 static INT nulldrv_EndPage( PHYSDEV dev )
 248 {
 249     return 0;
 250 }
 251
 252 static BOOL nulldrv_EnumFonts( PHYSDEV dev, LOGFONTW *logfont, FONTENUMPROCW proc, LPARAM lParam )
 253 {
 254     return TRUE;
 255 }
 256
 257 static INT nulldrv_EnumICMProfiles( PHYSDEV dev, ICMENUMPROCW func, LPARAM lparam )
 258 {
 259     return -1;
 260 }
 261
 262 static INT nulldrv_ExtDeviceMode( LPSTR buffer, HWND hwnd, DEVMODEA *output, LPSTR device,
 263                                   LPSTR port, DEVMODEA *input, LPSTR profile, DWORD mode )
 264 {
 265     return -1;
 266 }
 267
 268 static INT nulldrv_ExtEscape( PHYSDEV dev, INT escape, INT in_size, const void *in_data,
 269                                     INT out_size, void *out_data )
 270 {
 271     return 0;
 272 }
 273
 274 static BOOL nulldrv_ExtFloodFill( PHYSDEV dev, INT x, INT y, COLORREF color, UINT type )
 275 {
 276     return TRUE;
 277 }
 278
 279 static BOOL nulldrv_FontIsLinked( PHYSDEV dev )
 280 {
 281     return FALSE;
 282 }
 283
 284 static BOOL nulldrv_GdiComment( PHYSDEV dev, UINT size, const BYTE *data )
 285 {
 286     return FALSE;
 287 }
 288
 289 static BOOL nulldrv_GdiRealizationInfo( PHYSDEV dev, void *info )
 290 {
 291     return FALSE;
 292 }
 293
 294 static UINT nulldrv_GetBoundsRect( PHYSDEV dev, RECT *rect, UINT flags )
 295 {
 296     return DCB_RESET;
 297 }
 298
 299 static BOOL nulldrv_GetCharABCWidths( PHYSDEV dev, UINT first, UINT last, LPABC abc )
 300 {
 301     return FALSE;
 302 }
 303
 304 static BOOL nulldrv_GetCharABCWidthsI( PHYSDEV dev, UINT first, UINT count, WORD *indices, LPABC abc )
 305 {
 306     return FALSE;
 307 }
 308
 309 static BOOL nulldrv_GetCharWidth( PHYSDEV dev, UINT first, UINT last, INT *buffer )
 310 {
 311     return FALSE;
 312 }
 313
 314 static INT nulldrv_GetDeviceCaps( PHYSDEV dev, INT cap )
 315 {
 316     switch (cap)  /* return meaningful values for some entries */
 317     {
 318     case HORZRES:     return 640;
 319     case VERTRES:     return 480;
 320     case BITSPIXEL:   return 1;
 321     case PLANES:      return 1;
 322     case NUMCOLORS:   return 2;
 323     case ASPECTX:     return 36;
 324     case ASPECTY:     return 36;
 325     case ASPECTXY:    return 51;
 326     case LOGPIXELSX:  return 72;
 327     case LOGPIXELSY:  return 72;
 328     case SIZEPALETTE: return 2;
 329     case TEXTCAPS:    return (TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
 330                               TC_CR_ANY | TC_SF_X_YINDEP | TC_SA_DOUBLE | TC_SA_INTEGER |
 331                               TC_SA_CONTIN | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE | TC_VA_ABLE);
 332     default:          return 0;
 333     }
 334 }
 335
 336 static BOOL nulldrv_GetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 337 {
 338     SetLastError( ERROR_INVALID_PARAMETER );
 339     return FALSE;
 340 }
 341
 342 static DWORD nulldrv_GetFontData( PHYSDEV dev, DWORD table, DWORD offset, LPVOID buffer, DWORD length )
 343 {
 344     return FALSE;
 345 }
 346
 347 static DWORD nulldrv_GetFontUnicodeRanges( PHYSDEV dev, LPGLYPHSET glyphs )
 348 {
 349     return 0;
 350 }
 351
 352 static DWORD nulldrv_GetGlyphIndices( PHYSDEV dev, LPCWSTR str, INT count, LPWORD indices, DWORD flags )
 353 {
 354     return GDI_ERROR;
 355 }
 356
 357 static DWORD nulldrv_GetGlyphOutline( PHYSDEV dev, UINT ch, UINT format, LPGLYPHMETRICS metrics,
 358                                       DWORD size, LPVOID buffer, const MAT2 *mat )
 359 {
 360     return GDI_ERROR;
 361 }
 362
 363 static BOOL nulldrv_GetICMProfile( PHYSDEV dev, LPDWORD size, LPWSTR filename )
 364 {
 365     return FALSE;
 366 }
 367
 368 static DWORD nulldrv_GetImage( PHYSDEV dev, BITMAPINFO *info, struct gdi_image_bits *bits,
 369                                struct bitblt_coords *src )
 370 {
 371     return ERROR_NOT_SUPPORTED;
 372 }
 373
 374 static DWORD nulldrv_GetKerningPairs( PHYSDEV dev, DWORD count, LPKERNINGPAIR pairs )
 375 {
 376     return 0;
 377 }
 378
 379 static UINT nulldrv_GetOutlineTextMetrics( PHYSDEV dev, UINT size, LPOUTLINETEXTMETRICW otm )
 380 {
 381     return 0;
 382 }
 383
 384 static UINT nulldrv_GetSystemPaletteEntries( PHYSDEV dev, UINT start, UINT count, PALETTEENTRY *entries )
 385 {
 386     return 0;
 387 }
 388
 389 static UINT nulldrv_GetTextCharsetInfo( PHYSDEV dev, LPFONTSIGNATURE fs, DWORD flags )
 390 {
 391     return DEFAULT_CHARSET;
 392 }
 393
 394 static BOOL nulldrv_GetTextExtentExPoint( PHYSDEV dev, LPCWSTR str, INT count, INT max_ext,
 395                                           INT *fit, INT *dx, SIZE *size )
 396 {
 397     return FALSE;
 398 }
 399
 400 static BOOL nulldrv_GetTextExtentExPointI( PHYSDEV dev, const WORD *indices, INT count, INT max_ext,
 401                                            INT *fit, INT *dx, SIZE *size )
 402 {
 403     return FALSE;
 404 }
 405
 406 static INT nulldrv_GetTextFace( PHYSDEV dev, INT size, LPWSTR name )
 407 {
 408     INT ret = 0;
 409     LOGFONTW font;
 410     HFONT hfont = GetCurrentObject( dev->hdc, OBJ_FONT );
 411
 412     if (GetObjectW( hfont, sizeof(font), &font ))
 413     {
 414         ret = strlenW( font.lfFaceName ) + 1;
 415         if (name)
 416         {
 417             lstrcpynW( name, font.lfFaceName, size );
 418             ret = min( size, ret );
 419         }
 420     }
 421     return ret;
 422 }
 423
 424 static BOOL nulldrv_GetTextMetrics( PHYSDEV dev, TEXTMETRICW *metrics )
 425 {
 426     return FALSE;
 427 }
 428
 429 static BOOL nulldrv_LineTo( PHYSDEV dev, INT x, INT y )
 430 {
 431     return TRUE;
 432 }
 433
 434 static BOOL nulldrv_MoveTo( PHYSDEV dev, INT x, INT y )
 435 {
 436     return TRUE;
 437 }
 438
 439 static BOOL nulldrv_PaintRgn( PHYSDEV dev, HRGN rgn )
 440 {
 441     return TRUE;
 442 }
 443
 444 static BOOL nulldrv_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
 445 {
 446     return TRUE;
 447 }
 448
 449 static BOOL nulldrv_Pie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 450                          INT xstart, INT ystart, INT xend, INT yend )
 451 {
 452     return TRUE;
 453 }
 454
 455 static BOOL nulldrv_PolyPolygon( PHYSDEV dev, const POINT *points, const INT *counts, UINT polygons )
 456 {
 457     return TRUE;
 458 }
 459
 460 static BOOL nulldrv_PolyPolyline( PHYSDEV dev, const POINT *points, const DWORD *counts, DWORD lines )
 461 {
 462     return TRUE;
 463 }
 464
 465 static BOOL nulldrv_Polygon( PHYSDEV dev, const POINT *points, INT count )
 466 {
 467     INT counts[1] = { count };
 468
 469     return PolyPolygon( dev->hdc, points, counts, 1 );
 470 }
 471
 472 static BOOL nulldrv_Polyline( PHYSDEV dev, const POINT *points, INT count )
 473 {
 474     DWORD counts[1] = { count };
 475
 476     if (count < 0) return FALSE;
 477     return PolyPolyline( dev->hdc, points, counts, 1 );
 478 }
 479
 480 static DWORD nulldrv_PutImage( PHYSDEV dev, HRGN clip, BITMAPINFO *info,
 481                                const struct gdi_image_bits *bits, struct bitblt_coords *src,
 482                                struct bitblt_coords *dst, DWORD rop )
 483 {
 484     return ERROR_SUCCESS;
 485 }
 486
 487 static UINT nulldrv_RealizeDefaultPalette( PHYSDEV dev )
 488 {
 489     return 0;
 490 }
 491
 492 static UINT nulldrv_RealizePalette( PHYSDEV dev, HPALETTE palette, BOOL primary )
 493 {
 494     return 0;
 495 }
 496
 497 static BOOL nulldrv_Rectangle( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 498 {
 499     return TRUE;
 500 }
 501
 502 static HDC nulldrv_ResetDC( PHYSDEV dev, const DEVMODEW *devmode )
 503 {
 504     return 0;
 505 }
 506
 507 static BOOL nulldrv_RoundRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 508                                INT ell_width, INT ell_height )
 509 {
 510     return TRUE;
 511 }
 512
 513 static HBITMAP nulldrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
 514 {
 515     return bitmap;
 516 }
 517
 518 static HBRUSH nulldrv_SelectBrush( PHYSDEV dev, HBRUSH brush, const struct brush_pattern *pattern )
 519 {
 520     return brush;
 521 }
 522
 523 static HFONT nulldrv_SelectFont( PHYSDEV dev, HFONT font )
 524 {
 525     return 0;
 526 }
 527
 528 static HPALETTE nulldrv_SelectPalette( PHYSDEV dev, HPALETTE palette, BOOL bkgnd )
 529 {
 530     return palette;
 531 }
 532
 533 static HPEN nulldrv_SelectPen( PHYSDEV dev, HPEN pen, const struct brush_pattern *pattern )
 534 {
 535     return pen;
 536 }
 537
 538 static INT nulldrv_SetArcDirection( PHYSDEV dev, INT dir )
 539 {
 540     return dir;
 541 }
 542
 543 static COLORREF nulldrv_SetBkColor( PHYSDEV dev, COLORREF color )
 544 {
 545     return color;
 546 }
 547
 548 static INT nulldrv_SetBkMode( PHYSDEV dev, INT mode )
 549 {
 550     return mode;
 551 }
 552
 553 static UINT nulldrv_SetBoundsRect( PHYSDEV dev, RECT *rect, UINT flags )
 554 {
 555     return DCB_RESET;
 556 }
 557
 558 static COLORREF nulldrv_SetDCBrushColor( PHYSDEV dev, COLORREF color )
 559 {
 560     return color;
 561 }
 562
 563 static COLORREF nulldrv_SetDCPenColor( PHYSDEV dev, COLORREF color )
 564 {
 565     return color;
 566 }
 567
 568 static void nulldrv_SetDeviceClipping( PHYSDEV dev, HRGN rgn )
 569 {
 570 }
 571
 572 static DWORD nulldrv_SetLayout( PHYSDEV dev, DWORD layout )
 573 {
 574     return layout;
 575 }
 576
 577 static BOOL nulldrv_SetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 578 {
 579     SetLastError( ERROR_INVALID_PARAMETER );
 580     return FALSE;
 581 }
 582
 583 static DWORD nulldrv_SetMapperFlags( PHYSDEV dev, DWORD flags )
 584 {
 585     return flags;
 586 }
 587
 588 static COLORREF nulldrv_SetPixel( PHYSDEV dev, INT x, INT y, COLORREF color )
 589 {
 590     return color;
 591 }
 592
 593 static INT nulldrv_SetPolyFillMode( PHYSDEV dev, INT mode )
 594 {
 595     return mode;
 596 }
 597
 598 static INT nulldrv_SetROP2( PHYSDEV dev, INT rop )
 599 {
 600     return rop;
 601 }
 602
 603 static INT nulldrv_SetRelAbs( PHYSDEV dev, INT mode )
 604 {
 605     return mode;
 606 }
 607
 608 static INT nulldrv_SetStretchBltMode( PHYSDEV dev, INT mode )
 609 {
 610     return mode;
 611 }
 612
 613 static UINT nulldrv_SetTextAlign( PHYSDEV dev, UINT align )
 614 {
 615     return align;
 616 }
 617
 618 static INT nulldrv_SetTextCharacterExtra( PHYSDEV dev, INT extra )
 619 {
 620     return extra;
 621 }
 622
 623 static COLORREF nulldrv_SetTextColor( PHYSDEV dev, COLORREF color )
 624 {
 625     return color;
 626 }
 627
 628 static BOOL nulldrv_SetTextJustification( PHYSDEV dev, INT extra, INT breaks )
 629 {
 630     return TRUE;
 631 }
 632
 633 static INT nulldrv_StartDoc( PHYSDEV dev, const DOCINFOW *info )
 634 {
 635     return 0;
 636 }
 637
 638 static INT nulldrv_StartPage( PHYSDEV dev )
 639 {
 640     return 1;
 641 }
 642
 643 static BOOL nulldrv_SwapBuffers( PHYSDEV dev )
 644 {
 645     return TRUE;
 646 }
 647
 648 static BOOL nulldrv_UnrealizePalette( HPALETTE palette )
 649 {
 650     return FALSE;
 651 }
 652
 653 static struct opengl_funcs *nulldrv_wine_get_wgl_driver( PHYSDEV dev, UINT version )
 654 {
 655     return (void *)-1;
 656 }
 657
 658 const struct gdi_dc_funcs null_driver =
 659 {
 660     nulldrv_AbortDoc,                   /* pAbortDoc */
 661     nulldrv_AbortPath,                  /* pAbortPath */
 662     nulldrv_AlphaBlend,                 /* pAlphaBlend */
 663     nulldrv_AngleArc,                   /* pAngleArc */
 664     nulldrv_Arc,                        /* pArc */
 665     nulldrv_ArcTo,                      /* pArcTo */
 666     nulldrv_BeginPath,                  /* pBeginPath */
 667     nulldrv_BlendImage,                 /* pBlendImage */
 668     nulldrv_Chord,                      /* pChord */
 669     nulldrv_CloseFigure,                /* pCloseFigure */
 670     nulldrv_CreateCompatibleDC,         /* pCreateCompatibleDC */
 671     nulldrv_CreateDC,                   /* pCreateDC */
 672     nulldrv_DeleteDC,                   /* pDeleteDC */
 673     nulldrv_DeleteObject,               /* pDeleteObject */
 674     nulldrv_DeviceCapabilities,         /* pDeviceCapabilities */
 675     nulldrv_Ellipse,                    /* pEllipse */
 676     nulldrv_EndDoc,                     /* pEndDoc */
 677     nulldrv_EndPage,                    /* pEndPage */
 678     nulldrv_EndPath,                    /* pEndPath */
 679     nulldrv_EnumFonts,                  /* pEnumFonts */
 680     nulldrv_EnumICMProfiles,            /* pEnumICMProfiles */
 681     nulldrv_ExcludeClipRect,            /* pExcludeClipRect */
 682     nulldrv_ExtDeviceMode,              /* pExtDeviceMode */
 683     nulldrv_ExtEscape,                  /* pExtEscape */
 684     nulldrv_ExtFloodFill,               /* pExtFloodFill */
 685     nulldrv_ExtSelectClipRgn,           /* pExtSelectClipRgn */
 686     nulldrv_ExtTextOut,                 /* pExtTextOut */
 687     nulldrv_FillPath,                   /* pFillPath */
 688     nulldrv_FillRgn,                    /* pFillRgn */
 689     nulldrv_FlattenPath,                /* pFlattenPath */
 690     nulldrv_FontIsLinked,               /* pFontIsLinked */
 691     nulldrv_FrameRgn,                   /* pFrameRgn */
 692     nulldrv_GdiComment,                 /* pGdiComment */
 693     nulldrv_GdiRealizationInfo,         /* pGdiRealizationInfo */
 694     nulldrv_GetBoundsRect,              /* pGetBoundsRect */
 695     nulldrv_GetCharABCWidths,           /* pGetCharABCWidths */
 696     nulldrv_GetCharABCWidthsI,          /* pGetCharABCWidthsI */
 697     nulldrv_GetCharWidth,               /* pGetCharWidth */
 698     nulldrv_GetDeviceCaps,              /* pGetDeviceCaps */
 699     nulldrv_GetDeviceGammaRamp,         /* pGetDeviceGammaRamp */
 700     nulldrv_GetFontData,                /* pGetFontData */
 701     nulldrv_GetFontUnicodeRanges,       /* pGetFontUnicodeRanges */
 702     nulldrv_GetGlyphIndices,            /* pGetGlyphIndices */
 703     nulldrv_GetGlyphOutline,            /* pGetGlyphOutline */
 704     nulldrv_GetICMProfile,              /* pGetICMProfile */
 705     nulldrv_GetImage,                   /* pGetImage */
 706     nulldrv_GetKerningPairs,            /* pGetKerningPairs */
 707     nulldrv_GetNearestColor,            /* pGetNearestColor */
 708     nulldrv_GetOutlineTextMetrics,      /* pGetOutlineTextMetrics */
 709     nulldrv_GetPixel,                   /* pGetPixel */
 710     nulldrv_GetSystemPaletteEntries,    /* pGetSystemPaletteEntries */
 711     nulldrv_GetTextCharsetInfo,         /* pGetTextCharsetInfo */
 712     nulldrv_GetTextExtentExPoint,       /* pGetTextExtentExPoint */
 713     nulldrv_GetTextExtentExPointI,      /* pGetTextExtentExPointI */
 714     nulldrv_GetTextFace,                /* pGetTextFace */
 715     nulldrv_GetTextMetrics,             /* pGetTextMetrics */
 716     nulldrv_GradientFill,               /* pGradientFill */
 717     nulldrv_IntersectClipRect,          /* pIntersectClipRect */
 718     nulldrv_InvertRgn,                  /* pInvertRgn */
 719     nulldrv_LineTo,                     /* pLineTo */
 720     nulldrv_ModifyWorldTransform,       /* pModifyWorldTransform */
 721     nulldrv_MoveTo,                     /* pMoveTo */
 722     nulldrv_OffsetClipRgn,              /* pOffsetClipRgn */
 723     nulldrv_OffsetViewportOrgEx,        /* pOffsetViewportOrg */
 724     nulldrv_OffsetWindowOrgEx,          /* pOffsetWindowOrg */
 725     nulldrv_PaintRgn,                   /* pPaintRgn */
 726     nulldrv_PatBlt,                     /* pPatBlt */
 727     nulldrv_Pie,                        /* pPie */
 728     nulldrv_PolyBezier,                 /* pPolyBezier */
 729     nulldrv_PolyBezierTo,               /* pPolyBezierTo */
 730     nulldrv_PolyDraw,                   /* pPolyDraw */
 731     nulldrv_PolyPolygon,                /* pPolyPolygon */
 732     nulldrv_PolyPolyline,               /* pPolyPolyline */
 733     nulldrv_Polygon,                    /* pPolygon */
 734     nulldrv_Polyline,                   /* pPolyline */
 735     nulldrv_PolylineTo,                 /* pPolylineTo */
 736     nulldrv_PutImage,                   /* pPutImage */
 737     nulldrv_RealizeDefaultPalette,      /* pRealizeDefaultPalette */
 738     nulldrv_RealizePalette,             /* pRealizePalette */
 739     nulldrv_Rectangle,                  /* pRectangle */
 740     nulldrv_ResetDC,                    /* pResetDC */
 741     nulldrv_RestoreDC,                  /* pRestoreDC */
 742     nulldrv_RoundRect,                  /* pRoundRect */
 743     nulldrv_SaveDC,                     /* pSaveDC */
 744     nulldrv_ScaleViewportExtEx,         /* pScaleViewportExt */
 745     nulldrv_ScaleWindowExtEx,           /* pScaleWindowExt */
 746     nulldrv_SelectBitmap,               /* pSelectBitmap */
 747     nulldrv_SelectBrush,                /* pSelectBrush */
 748     nulldrv_SelectClipPath,             /* pSelectClipPath */
 749     nulldrv_SelectFont,                 /* pSelectFont */
 750     nulldrv_SelectPalette,              /* pSelectPalette */
 751     nulldrv_SelectPen,                  /* pSelectPen */
 752     nulldrv_SetArcDirection,            /* pSetArcDirection */
 753     nulldrv_SetBkColor,                 /* pSetBkColor */
 754     nulldrv_SetBkMode,                  /* pSetBkMode */
 755     nulldrv_SetBoundsRect,              /* pSetBoundsRect */
 756     nulldrv_SetDCBrushColor,            /* pSetDCBrushColor */
 757     nulldrv_SetDCPenColor,              /* pSetDCPenColor */
 758     nulldrv_SetDIBitsToDevice,          /* pSetDIBitsToDevice */
 759     nulldrv_SetDeviceClipping,          /* pSetDeviceClipping */
 760     nulldrv_SetDeviceGammaRamp,         /* pSetDeviceGammaRamp */
 761     nulldrv_SetLayout,                  /* pSetLayout */
 762     nulldrv_SetMapMode,                 /* pSetMapMode */
 763     nulldrv_SetMapperFlags,             /* pSetMapperFlags */
 764     nulldrv_SetPixel,                   /* pSetPixel */
 765     nulldrv_SetPolyFillMode,            /* pSetPolyFillMode */
 766     nulldrv_SetROP2,                    /* pSetROP2 */
 767     nulldrv_SetRelAbs,                  /* pSetRelAbs */
 768     nulldrv_SetStretchBltMode,          /* pSetStretchBltMode */
 769     nulldrv_SetTextAlign,               /* pSetTextAlign */
 770     nulldrv_SetTextCharacterExtra,      /* pSetTextCharacterExtra */
 771     nulldrv_SetTextColor,               /* pSetTextColor */
 772     nulldrv_SetTextJustification,       /* pSetTextJustification */
 773     nulldrv_SetViewportExtEx,           /* pSetViewportExt */
 774     nulldrv_SetViewportOrgEx,           /* pSetViewportOrg */
 775     nulldrv_SetWindowExtEx,             /* pSetWindowExt */
 776     nulldrv_SetWindowOrgEx,             /* pSetWindowOrg */
 777     nulldrv_SetWorldTransform,          /* pSetWorldTransform */
 778     nulldrv_StartDoc,                   /* pStartDoc */
 779     nulldrv_StartPage,                  /* pStartPage */
 780     nulldrv_StretchBlt,                 /* pStretchBlt */
 781     nulldrv_StretchDIBits,              /* pStretchDIBits */
 782     nulldrv_StrokeAndFillPath,          /* pStrokeAndFillPath */
 783     nulldrv_StrokePath,                 /* pStrokePath */
 784     nulldrv_SwapBuffers,                /* pSwapBuffers */
 785     nulldrv_UnrealizePalette,           /* pUnrealizePalette */
 786     nulldrv_WidenPath,                  /* pWidenPath */
 787     nulldrv_wine_get_wgl_driver,        /* wine_get_wgl_driver */
 788
 789     GDI_PRIORITY_NULL_DRV               /* priority */
 790 };
 791
 792
 793 /*****************************************************************************
 794  *      DRIVER_GetDriverName
 795  *
 796  */
 797 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 798 {
 799     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 800     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 801     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 802     static const WCHAR empty_strW[] = { 0 };
 803     WCHAR *p;
 804
 805     /* display is a special case */
 806     if (!strcmpiW( device, displayW ) ||
 807         !strcmpiW( device, display1W ))
 808     {
 809         lstrcpynW( driver, displayW, size );
 810         return TRUE;
 811     }
 812
 813     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 814     if(!size) {
 815         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 816         return FALSE;
 817     }
 818     p = strchrW(driver, ',');
 819     if(!p)
 820     {
 821         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 822         return FALSE;
 823     }
 824     *p = 0;
 825     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 826     return TRUE;
 827 }
 828
 829
 830 /***********************************************************************
 831  *           GdiConvertToDevmodeW    (GDI32.@)
 832  */
 833 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 834 {
 835     DEVMODEW *dmW;
 836     WORD dmW_size, dmA_size;
 837
 838     dmA_size = dmA->dmSize;
 839
 840     /* this is the minimal dmSize that XP accepts */
 841     if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
 842         return NULL;
 843
 844     if (dmA_size > sizeof(DEVMODEA))
 845         dmA_size = sizeof(DEVMODEA);
 846
 847     dmW_size = dmA_size + CCHDEVICENAME;
 848     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 849         dmW_size += CCHFORMNAME;
 850
 851     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 852     if (!dmW) return NULL;
 853
 854     MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
 855                                    dmW->dmDeviceName, CCHDEVICENAME);
 856     /* copy slightly more, to avoid long computations */
 857     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);
 858
 859     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 860     {
 861         if (dmA->dmFields & DM_FORMNAME)
 862             MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
 863                                        dmW->dmFormName, CCHFORMNAME);
 864         else
 865             dmW->dmFormName[0] = 0;
 866
 867         if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
 868             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
 869     }
 870
 871     if (dmA->dmDriverExtra)
 872         memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA_size, dmA->dmDriverExtra);
 873
 874     dmW->dmSize = dmW_size;
 875
 876     return dmW;
 877 }
 878
 879
 880 /*****************************************************************************
 881  *      @ [GDI32.100]
 882  *
 883  * This should thunk to 16-bit and simply call the proc with the given args.
 884  */
 885 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 886                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 887 {
 888     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 889     return -1;
 890 }
 891
 892 /*****************************************************************************
 893  *      @ [GDI32.101]
 894  *
 895  * This should load the correct driver for lpszDevice and calls this driver's
 896  * ExtDeviceModePropSheet proc.
 897  *
 898  * Note: The driver calls a callback routine for each property sheet page; these
 899  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 900  * The layout of this structure is:
 901  *
 902  * struct
 903  * {
 904  *   DWORD  nPages;
 905  *   DWORD  unknown;
 906  *   HPROPSHEETPAGE  pages[10];
 907  * };
 908  */
 909 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 910                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 911 {
 912     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 913     return -1;
 914 }
 915
 916 /*****************************************************************************
 917  *      @ [GDI32.102]
 918  *
 919  * This should load the correct driver for lpszDevice and call this driver's
 920  * ExtDeviceMode proc.
 921  *
 922  * FIXME: convert ExtDeviceMode to unicode in the driver interface
 923  */
 924 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 925                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 926                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 927                                     LPSTR lpszProfile, DWORD fwMode )
 928 {
 929     WCHAR deviceW[300];
 930     WCHAR bufW[300];
 931     char buf[300];
 932     HDC hdc;
 933     DC *dc;
 934     INT ret = -1;
 935
 936     TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
 937           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 938
 939     if (!lpszDevice) return -1;
 940     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 941
 942     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 943
 944     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 945
 946     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 947
 948     if ((dc = get_dc_ptr( hdc )))
 949     {
 950         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pExtDeviceMode );
 951         ret = physdev->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 952                                               lpdmInput, lpszProfile, fwMode );
 953         release_dc_ptr( dc );
 954     }
 955     DeleteDC( hdc );
 956     return ret;
 957 }
 958
 959 /****************************************************************************
 960  *      @ [GDI32.103]
 961  *
 962  * This should load the correct driver for lpszDevice and calls this driver's
 963  * AdvancedSetupDialog proc.
 964  */
 965 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 966                                           LPDEVMODEA devin, LPDEVMODEA devout )
 967 {
 968     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 969     return -1;
 970 }
 971
 972 /*****************************************************************************
 973  *      @ [GDI32.104]
 974  *
 975  * This should load the correct driver for lpszDevice and calls this driver's
 976  * DeviceCapabilities proc.
 977  *
 978  * FIXME: convert DeviceCapabilities to unicode in the driver interface
 979  */
 980 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 981                                            WORD fwCapability, LPSTR lpszOutput,
 982                                            LPDEVMODEA lpdm )
 983 {
 984     WCHAR deviceW[300];
 985     WCHAR bufW[300];
 986     char buf[300];
 987     HDC hdc;
 988     DC *dc;
 989     INT ret = -1;
 990
 991     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 992
 993     if (!lpszDevice) return -1;
 994     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 995
 996     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 997
 998     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 999
1000     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
1001
1002     if ((dc = get_dc_ptr( hdc )))
1003     {
1004         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pDeviceCapabilities );
1005         ret = physdev->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
1006                                                    fwCapability, lpszOutput, lpdm );
1007         release_dc_ptr( dc );
1008     }
1009     DeleteDC( hdc );
1010     return ret;
1011 }
1012
1013
1014 /************************************************************************
1015  *             Escape  [GDI32.@]
1016  */
1017 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
1018 {
1019     INT ret;
1020     POINT *pt;
1021
1022     switch (escape)
1023     {
1024     case ABORTDOC:
1025         return AbortDoc( hdc );
1026
1027     case ENDDOC:
1028         return EndDoc( hdc );
1029
1030     case GETPHYSPAGESIZE:
1031         pt = out_data;
1032         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
1033         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
1034         return 1;
1035
1036     case GETPRINTINGOFFSET:
1037         pt = out_data;
1038         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
1039         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
1040         return 1;
1041
1042     case GETSCALINGFACTOR:
1043         pt = out_data;
1044         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
1045         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
1046         return 1;
1047
1048     case NEWFRAME:
1049         return EndPage( hdc );
1050
1051     case SETABORTPROC:
1052         return SetAbortProc( hdc, (ABORTPROC)in_data );
1053
1054     case STARTDOC:
1055         {
1056             DOCINFOA doc;
1057             char *name = NULL;
1058
1059             /* in_data may not be 0 terminated so we must copy it */
1060             if (in_data)
1061             {
1062                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
1063                 memcpy( name, in_data, in_count );
1064                 name[in_count] = 0;
1065             }
1066             /* out_data is actually a pointer to the DocInfo structure and used as
1067              * a second input parameter */
1068             if (out_data) doc = *(DOCINFOA *)out_data;
1069             else
1070             {
1071                 doc.cbSize = sizeof(doc);
1072                 doc.lpszOutput = NULL;
1073                 doc.lpszDatatype = NULL;
1074                 doc.fwType = 0;
1075             }
1076             doc.lpszDocName = name;
1077             ret = StartDocA( hdc, &doc );
1078             HeapFree( GetProcessHeap(), 0, name );
1079             if (ret > 0) ret = StartPage( hdc );
1080             return ret;
1081         }
1082
1083     case QUERYESCSUPPORT:
1084         {
1085             const INT *ptr = (const INT *)in_data;
1086             if (in_count < sizeof(INT)) return 0;
1087             switch(*ptr)
1088             {
1089             case ABORTDOC:
1090             case ENDDOC:
1091             case GETPHYSPAGESIZE:
1092             case GETPRINTINGOFFSET:
1093             case GETSCALINGFACTOR:
1094             case NEWFRAME:
1095             case QUERYESCSUPPORT:
1096             case SETABORTPROC:
1097             case STARTDOC:
1098                 return TRUE;
1099             }
1100             break;
1101         }
1102     }
1103
1104     /* if not handled internally, pass it to the driver */
1105     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
1106 }
1107
1108
1109 /******************************************************************************
1110  *              ExtEscape       [GDI32.@]
1111  *
1112  * Access capabilities of a particular device that are not available through GDI.
1113  *
1114  * PARAMS
1115  *    hdc         [I] Handle to device context
1116  *    nEscape     [I] Escape function
1117  *    cbInput     [I] Number of bytes in input structure
1118  *    lpszInData  [I] Pointer to input structure
1119  *    cbOutput    [I] Number of bytes in output structure
1120  *    lpszOutData [O] Pointer to output structure
1121  *
1122  * RETURNS
1123  *    Success: >0
1124  *    Not implemented: 0
1125  *    Failure: <0
1126  */
1127 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
1128                       INT cbOutput, LPSTR lpszOutData )
1129 {
1130     INT ret = 0;
1131     DC * dc = get_dc_ptr( hdc );
1132
1133     if (dc)
1134     {
1135         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pExtEscape );
1136         update_dc( dc );
1137         ret = physdev->funcs->pExtEscape( physdev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
1138         release_dc_ptr( dc );
1139     }
1140     return ret;
1141 }
1142
1143
1144 /*******************************************************************
1145  *      DrawEscape [GDI32.@]
1146  *
1147  *
1148  */
1149 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
1150 {
1151     FIXME("DrawEscape, stub\n");
1152     return 0;
1153 }
1154
1155 /*******************************************************************
1156  *      NamedEscape [GDI32.@]
1157  */
1158 INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
1159                         INT cbOutput, LPSTR lpszOutData )
1160 {
1161     FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
1162           hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
1163           lpszOutData);
1164     return 0;
1165 }
1166
1167 /*******************************************************************
1168  *      DdQueryDisplaySettingsUniqueness [GDI32.@]
1169  *      GdiEntry13                       [GDI32.@]
1170  */
1171 ULONG WINAPI DdQueryDisplaySettingsUniqueness(VOID)
1172 {
1173     static int warn_once;
1174
1175     if (!warn_once++)
1176         FIXME("stub\n");
1177     return 0;
1178 }