dlls/gdi32/driver.c

   1 /*
   2  * Graphics driver management functions
   3  *
   4  * Copyright 1994 Bob Amstadt
   5  * Copyright 1996, 2001 Alexandre Julliard
   6  * Copyright 2009 Massimo Del Fedele
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #include <stdarg.h>
  27 #include <string.h>
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include "windef.h"
  31 #include "winbase.h"
  32 #include "winreg.h"
  33 #include "ddrawgdi.h"
  34 #include "wine/winbase16.h"
  35
  36 #include "gdi_private.h"
  37 #include "wine/unicode.h"
  38 #include "wine/list.h"
  39 #include "wine/debug.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  42
  43 struct graphics_driver
  44 {
  45     struct list             entry;
  46     HMODULE                 module;  /* module handle */
  47     DC_FUNCTIONS            funcs;
  48 };
  49
  50 static struct list drivers = LIST_INIT( drivers );
  51 static struct graphics_driver *display_driver;
  52
  53 static CRITICAL_SECTION driver_section;
  54 static CRITICAL_SECTION_DEBUG critsect_debug =
  55 {
  56     0, 0, &driver_section,
  57     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  58       0, 0, { (DWORD_PTR)(__FILE__ ": driver_section") }
  59 };
  60 static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  61
  62 /**********************************************************************
  63  *           create_driver
  64  *
  65  * Allocate and fill the driver structure for a given module.
  66  */
  67 static struct graphics_driver *create_driver( HMODULE module )
  68 {
  69     struct graphics_driver *driver;
  70
  71     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  72     driver->module = module;
  73
  74     /* fill the function table */
  75     if (module)
  76     {
  77 #define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
  78         GET_FUNC(AbortDoc);
  79         GET_FUNC(AbortPath);
  80         GET_FUNC(AlphaBlend);
  81         GET_FUNC(AngleArc);
  82         GET_FUNC(Arc);
  83         GET_FUNC(ArcTo);
  84         GET_FUNC(BeginPath);
  85         GET_FUNC(BitBlt);
  86         GET_FUNC(ChoosePixelFormat);
  87         GET_FUNC(Chord);
  88         GET_FUNC(CloseFigure);
  89         GET_FUNC(CreateBitmap);
  90         GET_FUNC(CreateDC);
  91         GET_FUNC(CreateDIBSection);
  92         GET_FUNC(DeleteBitmap);
  93         GET_FUNC(DeleteDC);
  94         GET_FUNC(DescribePixelFormat);
  95         GET_FUNC(DeviceCapabilities);
  96         GET_FUNC(Ellipse);
  97         GET_FUNC(EndDoc);
  98         GET_FUNC(EndPage);
  99         GET_FUNC(EndPath);
 100         GET_FUNC(EnumDeviceFonts);
 101         GET_FUNC(ExcludeClipRect);
 102         GET_FUNC(ExtDeviceMode);
 103         GET_FUNC(ExtEscape);
 104         GET_FUNC(ExtFloodFill);
 105         GET_FUNC(ExtSelectClipRgn);
 106         GET_FUNC(ExtTextOut);
 107         GET_FUNC(FillPath);
 108         GET_FUNC(FillRgn);
 109         GET_FUNC(FlattenPath);
 110         GET_FUNC(FrameRgn);
 111         GET_FUNC(GdiComment);
 112         GET_FUNC(GetBitmapBits);
 113         GET_FUNC(GetCharWidth);
 114         GET_FUNC(GetDCOrgEx);
 115         GET_FUNC(GetDIBColorTable);
 116         GET_FUNC(GetDIBits);
 117         GET_FUNC(GetDeviceCaps);
 118         GET_FUNC(GetDeviceGammaRamp);
 119         GET_FUNC(GetICMProfile);
 120         GET_FUNC(GetNearestColor);
 121         GET_FUNC(GetPixel);
 122         GET_FUNC(GetPixelFormat);
 123         GET_FUNC(GetSystemPaletteEntries);
 124         GET_FUNC(GetTextExtentExPoint);
 125         GET_FUNC(GetTextMetrics);
 126         GET_FUNC(IntersectClipRect);
 127         GET_FUNC(InvertRgn);
 128         GET_FUNC(LineTo);
 129         GET_FUNC(MoveTo);
 130         GET_FUNC(ModifyWorldTransform);
 131         GET_FUNC(OffsetClipRgn);
 132         GET_FUNC(OffsetViewportOrg);
 133         GET_FUNC(OffsetWindowOrg);
 134         GET_FUNC(PaintRgn);
 135         GET_FUNC(PatBlt);
 136         GET_FUNC(Pie);
 137         GET_FUNC(PolyBezier);
 138         GET_FUNC(PolyBezierTo);
 139         GET_FUNC(PolyDraw);
 140         GET_FUNC(PolyPolygon);
 141         GET_FUNC(PolyPolyline);
 142         GET_FUNC(Polygon);
 143         GET_FUNC(Polyline);
 144         GET_FUNC(PolylineTo);
 145         GET_FUNC(RealizeDefaultPalette);
 146         GET_FUNC(RealizePalette);
 147         GET_FUNC(Rectangle);
 148         GET_FUNC(ResetDC);
 149         GET_FUNC(RestoreDC);
 150         GET_FUNC(RoundRect);
 151         GET_FUNC(SaveDC);
 152         GET_FUNC(ScaleViewportExt);
 153         GET_FUNC(ScaleWindowExt);
 154         GET_FUNC(SelectBitmap);
 155         GET_FUNC(SelectBrush);
 156         GET_FUNC(SelectClipPath);
 157         GET_FUNC(SelectFont);
 158         GET_FUNC(SelectPalette);
 159         GET_FUNC(SelectPen);
 160         GET_FUNC(SetArcDirection);
 161         GET_FUNC(SetBitmapBits);
 162         GET_FUNC(SetBkColor);
 163         GET_FUNC(SetBkMode);
 164         GET_FUNC(SetDCBrushColor);
 165         GET_FUNC(SetDCPenColor);
 166         GET_FUNC(SetDIBColorTable);
 167         GET_FUNC(SetDIBits);
 168         GET_FUNC(SetDIBitsToDevice);
 169         GET_FUNC(SetDeviceClipping);
 170         GET_FUNC(SetDeviceGammaRamp);
 171         GET_FUNC(SetMapMode);
 172         GET_FUNC(SetMapperFlags);
 173         GET_FUNC(SetPixel);
 174         GET_FUNC(SetPixelFormat);
 175         GET_FUNC(SetPolyFillMode);
 176         GET_FUNC(SetROP2);
 177         GET_FUNC(SetRelAbs);
 178         GET_FUNC(SetStretchBltMode);
 179         GET_FUNC(SetTextAlign);
 180         GET_FUNC(SetTextCharacterExtra);
 181         GET_FUNC(SetTextColor);
 182         GET_FUNC(SetTextJustification);
 183         GET_FUNC(SetViewportExt);
 184         GET_FUNC(SetViewportOrg);
 185         GET_FUNC(SetWindowExt);
 186         GET_FUNC(SetWindowOrg);
 187         GET_FUNC(SetWorldTransform);
 188         GET_FUNC(StartDoc);
 189         GET_FUNC(StartPage);
 190         GET_FUNC(StretchBlt);
 191         GET_FUNC(StretchDIBits);
 192         GET_FUNC(StrokeAndFillPath);
 193         GET_FUNC(StrokePath);
 194         GET_FUNC(SwapBuffers);
 195         GET_FUNC(UnrealizePalette);
 196         GET_FUNC(WidenPath);
 197
 198         /* OpenGL32 */
 199         GET_FUNC(wglCreateContext);
 200         GET_FUNC(wglCreateContextAttribsARB);
 201         GET_FUNC(wglDeleteContext);
 202         GET_FUNC(wglGetProcAddress);
 203         GET_FUNC(wglGetPbufferDCARB);
 204         GET_FUNC(wglMakeContextCurrentARB);
 205         GET_FUNC(wglMakeCurrent);
 206         GET_FUNC(wglSetPixelFormatWINE);
 207         GET_FUNC(wglShareLists);
 208         GET_FUNC(wglUseFontBitmapsA);
 209         GET_FUNC(wglUseFontBitmapsW);
 210 #undef GET_FUNC
 211     }
 212     else memset( &driver->funcs, 0, sizeof(driver->funcs) );
 213
 214     return driver;
 215 }
 216
 217
 218 /**********************************************************************
 219  *           Load_Dib_Driver
 220  *
 221  * Check if we want the DIB engine and try to load it
 222  */
 223 static HMODULE Load_Dib_Driver(void)
 224 {
 225     HMODULE module;
 226
 227     static const char *winedib_drv = "winedib.drv";
 228
 229     /* we do want use DIB Engine ? */
 230     BOOL driverRequired = TRUE;
 231
 232     /* already checked env/registry for DIB driver ? */
 233     BOOL envChecked     = FALSE;
 234
 235     char *winedib;
 236     char buffer[10];
 237
 238     /* environment variable WINEDIB takes precedence */
 239     if( (winedib = getenv("WINEDIB")) != NULL)
 240     {
 241         if(!strcasecmp(winedib, "ON") ||
 242            !strcasecmp(winedib, "TRUE") ||
 243            !strcasecmp(winedib, "ENABLE") ||
 244            !strcasecmp(winedib, "ENABLED")
 245         )
 246         {
 247             TRACE("DIB Engine enabled by environment\n");
 248             envChecked = TRUE;
 249             driverRequired = TRUE;
 250         }
 251         else if(!strcasecmp(winedib, "OFF") ||
 252            !strcasecmp(winedib, "FALSE") ||
 253            !strcasecmp(winedib, "DISABLE") ||
 254            !strcasecmp(winedib, "DISABLED")
 255         )
 256         {
 257             TRACE("DIB Engine disabled by environment\n");
 258             envChecked = TRUE;
 259             driverRequired = FALSE;
 260         }
 261         else
 262             ERR("Bad WINEDIB environment variable\n");
 263     }
 264
 265     /* no WINEDIB environment var found or wrong value, we check registry */
 266     if(!envChecked)
 267     {
 268         HKEY hkey;
 269         buffer[0] = 0;
 270         if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\DIB Engine", &hkey ))
 271         {
 272             DWORD type, count = sizeof(buffer);
 273             RegQueryValueExA( hkey, "Enable", 0, &type, (LPBYTE) buffer, &count );
 274             RegCloseKey( hkey );
 275         }
 276         if(*buffer)
 277         {
 278             /* registry value found, must be Y or y to enable driver, N or n to disable */
 279             if(!strncasecmp(buffer, "Y", 1))
 280             {
 281                 TRACE("DIB Engine enabled by registry\n");
 282                 envChecked = TRUE;
 283                 driverRequired = TRUE;
 284             }
 285             else if(!strncasecmp(buffer, "N", 1))
 286             {
 287                 TRACE("DIB Engine disabled by registry\n");
 288                 envChecked = TRUE;
 289                 driverRequired = FALSE;
 290             }
 291         }
 292     }
 293
 294     /* none of above, we assume we don't want to use engine */
 295     if(!envChecked)
 296     {
 297         TRACE("DIB Engine disabled by default\n");
 298         envChecked = TRUE;
 299         driverRequired = FALSE;
 300     }
 301
 302     /* if DIB Engine is required, try to load it
 303      * otherwise just return NULL module */
 304     if(driverRequired)
 305     {
 306         if( (module = LoadLibraryA( winedib_drv )) != 0)
 307             TRACE("Succesfully loaded DIB Engine\n");
 308         else
 309             ERR("Couldn't load DIB Engine\n");
 310         return module;
 311     }
 312     else
 313         return 0;
 314 }
 315
 316 /**********************************************************************
 317  *           DRIVER_get_display_driver
 318  *
 319  * Special case for loading the display driver: get the name from the config file
 320  */
 321 const DC_FUNCTIONS *DRIVER_get_display_driver(void)
 322 {
 323     struct graphics_driver *driver;
 324     char buffer[MAX_PATH], libname[32], *name, *next;
 325     HMODULE module = 0;
 326     HKEY hkey;
 327
 328     if (display_driver) return &display_driver->funcs;  /* already loaded */
 329
 330     /* check at first if DIB engine is present and if we want
 331      * to use it */
 332     if( (module = Load_Dib_Driver()) == 0)
 333     {
 334         /* no DIB Engine loaded, just load normal display driver */
 335
 336         strcpy( buffer, "x11" );  /* default value */
 337         /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
 338         if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
 339         {
 340             DWORD type, count = sizeof(buffer);
 341             RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
 342             RegCloseKey( hkey );
 343         }
 344
 345         name = buffer;
 346         while (name)
 347         {
 348             next = strchr( name, ',' );
 349             if (next) *next++ = 0;
 350
 351             snprintf( libname, sizeof(libname), "wine%s.drv", name );
 352             if ((module = LoadLibraryA( libname )) != 0) break;
 353             name = next;
 354         }
 355     }
 356
 357     if (!(driver = create_driver( module )))
 358     {
 359         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 360         FreeLibrary( module );
 361         ExitProcess(1);
 362     }
 363     if (InterlockedCompareExchangePointer( (void **)&display_driver, driver, NULL ))
 364     {
 365         /* somebody beat us to it */
 366         FreeLibrary( driver->module );
 367         HeapFree( GetProcessHeap(), 0, driver );
 368     }
 369     return &display_driver->funcs;
 370 }
 371
 372
 373 /**********************************************************************
 374  *           DRIVER_load_driver
 375  */
 376 const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name )
 377 {
 378     HMODULE module;
 379     struct graphics_driver *driver, *new_driver;
 380     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 381     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 382
 383     /* display driver is a special case */
 384     if (!strcmpiW( name, displayW ) || !strcmpiW( name, display1W )) return DRIVER_get_display_driver();
 385
 386     if ((module = GetModuleHandleW( name )))
 387     {
 388         if (display_driver && display_driver->module == module) return &display_driver->funcs;
 389         EnterCriticalSection( &driver_section );
 390         LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 391         {
 392             if (driver->module == module) goto done;
 393         }
 394         LeaveCriticalSection( &driver_section );
 395     }
 396
 397     if (!(module = LoadLibraryW( name ))) return NULL;
 398
 399     if (!(new_driver = create_driver( module )))
 400     {
 401         FreeLibrary( module );
 402         return NULL;
 403     }
 404
 405     /* check if someone else added it in the meantime */
 406     EnterCriticalSection( &driver_section );
 407     LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 408     {
 409         if (driver->module != module) continue;
 410         FreeLibrary( module );
 411         HeapFree( GetProcessHeap(), 0, new_driver );
 412         goto done;
 413     }
 414     driver = new_driver;
 415     list_add_head( &drivers, &driver->entry );
 416     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 417 done:
 418     LeaveCriticalSection( &driver_section );
 419     return &driver->funcs;
 420 }
 421
 422
 423 /*****************************************************************************
 424  *      DRIVER_GetDriverName
 425  *
 426  */
 427 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 428 {
 429     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 430     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 431     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 432     static const WCHAR empty_strW[] = { 0 };
 433     WCHAR *p;
 434
 435     /* display is a special case */
 436     if (!strcmpiW( device, displayW ) ||
 437         !strcmpiW( device, display1W ))
 438     {
 439         lstrcpynW( driver, displayW, size );
 440         return TRUE;
 441     }
 442
 443     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 444     if(!size) {
 445         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 446         return FALSE;
 447     }
 448     p = strchrW(driver, ',');
 449     if(!p)
 450     {
 451         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 452         return FALSE;
 453     }
 454     *p = 0;
 455     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 456     return TRUE;
 457 }
 458
 459
 460 /***********************************************************************
 461  *           GdiConvertToDevmodeW    (GDI32.@)
 462  */
 463 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 464 {
 465     DEVMODEW *dmW;
 466     WORD dmW_size, dmA_size;
 467
 468     dmA_size = dmA->dmSize;
 469
 470     /* this is the minimal dmSize that XP accepts */
 471     if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
 472         return NULL;
 473
 474     if (dmA_size > sizeof(DEVMODEA))
 475         dmA_size = sizeof(DEVMODEA);
 476
 477     dmW_size = dmA_size + CCHDEVICENAME;
 478     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 479         dmW_size += CCHFORMNAME;
 480
 481     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 482     if (!dmW) return NULL;
 483
 484     MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
 485                                    dmW->dmDeviceName, CCHDEVICENAME);
 486     /* copy slightly more, to avoid long computations */
 487     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);
 488
 489     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 490     {
 491         if (dmA->dmFields & DM_FORMNAME)
 492             MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
 493                                        dmW->dmFormName, CCHFORMNAME);
 494         else
 495             dmW->dmFormName[0] = 0;
 496
 497         if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
 498             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
 499     }
 500
 501     if (dmA->dmDriverExtra)
 502         memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA_size, dmA->dmDriverExtra);
 503
 504     dmW->dmSize = dmW_size;
 505
 506     return dmW;
 507 }
 508
 509
 510 /*****************************************************************************
 511  *      @ [GDI32.100]
 512  *
 513  * This should thunk to 16-bit and simply call the proc with the given args.
 514  */
 515 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 516                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 517 {
 518     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 519     return -1;
 520 }
 521
 522 /*****************************************************************************
 523  *      @ [GDI32.101]
 524  *
 525  * This should load the correct driver for lpszDevice and calls this driver's
 526  * ExtDeviceModePropSheet proc.
 527  *
 528  * Note: The driver calls a callback routine for each property sheet page; these
 529  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 530  * The layout of this structure is:
 531  *
 532  * struct
 533  * {
 534  *   DWORD  nPages;
 535  *   DWORD  unknown;
 536  *   HPROPSHEETPAGE  pages[10];
 537  * };
 538  */
 539 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 540                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 541 {
 542     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 543     return -1;
 544 }
 545
 546 /*****************************************************************************
 547  *      @ [GDI32.102]
 548  *
 549  * This should load the correct driver for lpszDevice and call this driver's
 550  * ExtDeviceMode proc.
 551  *
 552  * FIXME: convert ExtDeviceMode to unicode in the driver interface
 553  */
 554 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 555                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 556                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 557                                     LPSTR lpszProfile, DWORD fwMode )
 558 {
 559     WCHAR deviceW[300];
 560     WCHAR bufW[300];
 561     char buf[300];
 562     HDC hdc;
 563     DC *dc;
 564     INT ret = -1;
 565
 566     TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
 567           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 568
 569     if (!lpszDevice) return -1;
 570     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 571
 572     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 573
 574     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 575
 576     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 577
 578     if ((dc = get_dc_ptr( hdc )))
 579     {
 580         if (dc->funcs->pExtDeviceMode)
 581             ret = dc->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 582                                              lpdmInput, lpszProfile, fwMode );
 583         release_dc_ptr( dc );
 584     }
 585     DeleteDC( hdc );
 586     return ret;
 587 }
 588
 589 /****************************************************************************
 590  *      @ [GDI32.103]
 591  *
 592  * This should load the correct driver for lpszDevice and calls this driver's
 593  * AdvancedSetupDialog proc.
 594  */
 595 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 596                                           LPDEVMODEA devin, LPDEVMODEA devout )
 597 {
 598     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 599     return -1;
 600 }
 601
 602 /*****************************************************************************
 603  *      @ [GDI32.104]
 604  *
 605  * This should load the correct driver for lpszDevice and calls this driver's
 606  * DeviceCapabilities proc.
 607  *
 608  * FIXME: convert DeviceCapabilities to unicode in the driver interface
 609  */
 610 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 611                                            WORD fwCapability, LPSTR lpszOutput,
 612                                            LPDEVMODEA lpdm )
 613 {
 614     WCHAR deviceW[300];
 615     WCHAR bufW[300];
 616     char buf[300];
 617     HDC hdc;
 618     DC *dc;
 619     INT ret = -1;
 620
 621     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 622
 623     if (!lpszDevice) return -1;
 624     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 625
 626     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 627
 628     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 629
 630     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 631
 632     if ((dc = get_dc_ptr( hdc )))
 633     {
 634         if (dc->funcs->pDeviceCapabilities)
 635             ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
 636                                                   fwCapability, lpszOutput, lpdm );
 637         release_dc_ptr( dc );
 638     }
 639     DeleteDC( hdc );
 640     return ret;
 641 }
 642
 643
 644 /************************************************************************
 645  *             Escape  [GDI32.@]
 646  */
 647 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
 648 {
 649     INT ret;
 650     POINT *pt;
 651
 652     switch (escape)
 653     {
 654     case ABORTDOC:
 655         return AbortDoc( hdc );
 656
 657     case ENDDOC:
 658         return EndDoc( hdc );
 659
 660     case GETPHYSPAGESIZE:
 661         pt = out_data;
 662         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
 663         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
 664         return 1;
 665
 666     case GETPRINTINGOFFSET:
 667         pt = out_data;
 668         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
 669         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
 670         return 1;
 671
 672     case GETSCALINGFACTOR:
 673         pt = out_data;
 674         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
 675         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
 676         return 1;
 677
 678     case NEWFRAME:
 679         return EndPage( hdc );
 680
 681     case SETABORTPROC:
 682         return SetAbortProc( hdc, (ABORTPROC)in_data );
 683
 684     case STARTDOC:
 685         {
 686             DOCINFOA doc;
 687             char *name = NULL;
 688
 689             /* in_data may not be 0 terminated so we must copy it */
 690             if (in_data)
 691             {
 692                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
 693                 memcpy( name, in_data, in_count );
 694                 name[in_count] = 0;
 695             }
 696             /* out_data is actually a pointer to the DocInfo structure and used as
 697              * a second input parameter */
 698             if (out_data) doc = *(DOCINFOA *)out_data;
 699             else
 700             {
 701                 doc.cbSize = sizeof(doc);
 702                 doc.lpszOutput = NULL;
 703                 doc.lpszDatatype = NULL;
 704                 doc.fwType = 0;
 705             }
 706             doc.lpszDocName = name;
 707             ret = StartDocA( hdc, &doc );
 708             HeapFree( GetProcessHeap(), 0, name );
 709             if (ret > 0) ret = StartPage( hdc );
 710             return ret;
 711         }
 712
 713     case QUERYESCSUPPORT:
 714         {
 715             const INT *ptr = (const INT *)in_data;
 716             if (in_count < sizeof(INT)) return 0;
 717             switch(*ptr)
 718             {
 719             case ABORTDOC:
 720             case ENDDOC:
 721             case GETPHYSPAGESIZE:
 722             case GETPRINTINGOFFSET:
 723             case GETSCALINGFACTOR:
 724             case NEWFRAME:
 725             case QUERYESCSUPPORT:
 726             case SETABORTPROC:
 727             case STARTDOC:
 728                 return TRUE;
 729             }
 730             break;
 731         }
 732     }
 733
 734     /* if not handled internally, pass it to the driver */
 735     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
 736 }
 737
 738
 739 /******************************************************************************
 740  *              ExtEscape       [GDI32.@]
 741  *
 742  * Access capabilities of a particular device that are not available through GDI.
 743  *
 744  * PARAMS
 745  *    hdc         [I] Handle to device context
 746  *    nEscape     [I] Escape function
 747  *    cbInput     [I] Number of bytes in input structure
 748  *    lpszInData  [I] Pointer to input structure
 749  *    cbOutput    [I] Number of bytes in output structure
 750  *    lpszOutData [O] Pointer to output structure
 751  *
 752  * RETURNS
 753  *    Success: >0
 754  *    Not implemented: 0
 755  *    Failure: <0
 756  */
 757 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
 758                       INT cbOutput, LPSTR lpszOutData )
 759 {
 760     INT ret = 0;
 761     DC * dc = get_dc_ptr( hdc );
 762     if (dc)
 763     {
 764         if (dc->funcs->pExtEscape)
 765             ret = dc->funcs->pExtEscape( dc->physDev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
 766         release_dc_ptr( dc );
 767     }
 768     return ret;
 769 }
 770
 771
 772 /*******************************************************************
 773  *      DrawEscape [GDI32.@]
 774  *
 775  *
 776  */
 777 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
 778 {
 779     FIXME("DrawEscape, stub\n");
 780     return 0;
 781 }
 782
 783 /*******************************************************************
 784  *      NamedEscape [GDI32.@]
 785  */
 786 INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
 787                         INT cbOutput, LPSTR lpszOutData )
 788 {
 789     FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
 790           hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
 791           lpszOutData);
 792     return 0;
 793 }
 794
 795 /*******************************************************************
 796  *      DdQueryDisplaySettingsUniqueness [GDI32.@]
 797  *      GdiEntry13                       [GDI32.@]
 798  */
 799 ULONG WINAPI DdQueryDisplaySettingsUniqueness(VOID)
 800 {
 801     static int warn_once;
 802
 803     if (!warn_once++)
 804         FIXME("stub\n");
 805     return 0;
 806 }