dlls/gdi/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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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
  32 #include "gdi.h"
  33 #include "gdi_private.h"
  34 #include "wine/unicode.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  38
  39 struct graphics_driver
  40 {
  41     struct graphics_driver *next;
  42     struct graphics_driver *prev;
  43     HMODULE                 module;  /* module handle */
  44     unsigned int            count;   /* reference count */
  45     DC_FUNCTIONS            funcs;
  46 };
  47
  48 static struct graphics_driver *first_driver;
  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, { 0, (DWORD)(__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->next   = NULL;
  71     driver->prev   = NULL;
  72     driver->module = module;
  73     driver->count  = 1;
  74
  75     /* fill the function table */
  76
  77 #define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
  78
  79     GET_FUNC(AbortDoc);
  80     GET_FUNC(AbortPath);
  81     GET_FUNC(AlphaBlend);
  82     GET_FUNC(AngleArc);
  83     GET_FUNC(Arc);
  84     GET_FUNC(ArcTo);
  85     GET_FUNC(BeginPath);
  86     GET_FUNC(BitBlt);
  87     GET_FUNC(ChoosePixelFormat);
  88     GET_FUNC(Chord);
  89     GET_FUNC(CloseFigure);
  90     GET_FUNC(CreateBitmap);
  91     GET_FUNC(CreateDC);
  92     GET_FUNC(CreateDIBSection);
  93     GET_FUNC(DeleteBitmap);
  94     GET_FUNC(DeleteDC);
  95     GET_FUNC(DescribePixelFormat);
  96     GET_FUNC(DeviceCapabilities);
  97     GET_FUNC(Ellipse);
  98     GET_FUNC(EndDoc);
  99     GET_FUNC(EndPage);
 100     GET_FUNC(EndPath);
 101     GET_FUNC(EnumDeviceFonts);
 102     GET_FUNC(ExcludeClipRect);
 103     GET_FUNC(ExtDeviceMode);
 104     GET_FUNC(ExtEscape);
 105     GET_FUNC(ExtFloodFill);
 106     GET_FUNC(ExtSelectClipRgn);
 107     GET_FUNC(ExtTextOut);
 108     GET_FUNC(FillPath);
 109     GET_FUNC(FillRgn);
 110     GET_FUNC(FlattenPath);
 111     GET_FUNC(FrameRgn);
 112     GET_FUNC(GdiComment);
 113     GET_FUNC(GetBitmapBits);
 114     GET_FUNC(GetCharWidth);
 115     GET_FUNC(GetDCOrgEx);
 116     GET_FUNC(GetDIBColorTable);
 117     GET_FUNC(GetDIBits);
 118     GET_FUNC(GetDeviceCaps);
 119     GET_FUNC(GetDeviceGammaRamp);
 120     GET_FUNC(GetNearestColor);
 121     GET_FUNC(GetPixel);
 122     GET_FUNC(GetPixelFormat);
 123     GET_FUNC(GetSystemPaletteEntries);
 124     GET_FUNC(GetTextExtentPoint);
 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(SetDCOrg);
 166     GET_FUNC(SetDCPenColor);
 167     GET_FUNC(SetDIBColorTable);
 168     GET_FUNC(SetDIBits);
 169     GET_FUNC(SetDIBitsToDevice);
 170     GET_FUNC(SetDeviceClipping);
 171     GET_FUNC(SetDeviceGammaRamp);
 172     GET_FUNC(SetMapMode);
 173     GET_FUNC(SetMapperFlags);
 174     GET_FUNC(SetPixel);
 175     GET_FUNC(SetPixelFormat);
 176     GET_FUNC(SetPolyFillMode);
 177     GET_FUNC(SetROP2);
 178     GET_FUNC(SetRelAbs);
 179     GET_FUNC(SetStretchBltMode);
 180     GET_FUNC(SetTextAlign);
 181     GET_FUNC(SetTextCharacterExtra);
 182     GET_FUNC(SetTextColor);
 183     GET_FUNC(SetTextJustification);
 184     GET_FUNC(SetViewportExt);
 185     GET_FUNC(SetViewportOrg);
 186     GET_FUNC(SetWindowExt);
 187     GET_FUNC(SetWindowOrg);
 188     GET_FUNC(SetWorldTransform);
 189     GET_FUNC(StartDoc);
 190     GET_FUNC(StartPage);
 191     GET_FUNC(StretchBlt);
 192     GET_FUNC(StretchDIBits);
 193     GET_FUNC(StrokeAndFillPath);
 194     GET_FUNC(StrokePath);
 195     GET_FUNC(SwapBuffers);
 196     GET_FUNC(WidenPath);
 197 #undef GET_FUNC
 198
 199     /* add it to the list */
 200     driver->prev = NULL;
 201     if ((driver->next = first_driver)) driver->next->prev = driver;
 202     first_driver = driver;
 203     return driver;
 204 }
 205
 206
 207 /**********************************************************************
 208  *           load_display_driver
 209  *
 210  * Special case for loading the display driver: get the name from the config file
 211  */
 212 static struct graphics_driver *load_display_driver(void)
 213 {
 214     char buffer[MAX_PATH], libname[32], *name, *next;
 215     HMODULE module = 0;
 216     HKEY hkey;
 217
 218     if (display_driver)  /* already loaded */
 219     {
 220         display_driver->count++;
 221         return display_driver;
 222     }
 223
 224     strcpy( buffer, "x11,tty" );  /* default value */
 225     /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
 226     if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
 227     {
 228         DWORD type, count = sizeof(buffer);
 229         RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
 230         RegCloseKey( hkey );
 231     }
 232
 233     name = buffer;
 234     while (name)
 235     {
 236         next = strchr( name, ',' );
 237         if (next) *next++ = 0;
 238
 239         snprintf( libname, sizeof(libname), "wine%s.drv", name );
 240         if ((module = LoadLibraryA( libname )) != 0) break;
 241         name = next;
 242     }
 243     if (!module)
 244     {
 245         MESSAGE( "wine: Could not load graphics driver '%s'.\n", buffer );
 246         if (!strcasecmp( buffer, "x11" ))
 247             MESSAGE( "Make sure that your X server is running and that $DISPLAY is set correctly.\n" );
 248         ExitProcess(1);
 249     }
 250
 251     if (!(display_driver = create_driver( module )))
 252     {
 253         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 254         FreeLibrary( module );
 255         ExitProcess(1);
 256     }
 257
 258     display_driver->count++;  /* we don't want to free it */
 259     return display_driver;
 260 }
 261
 262
 263 /**********************************************************************
 264  *           DRIVER_load_driver
 265  */
 266 const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name )
 267 {
 268     HMODULE module;
 269     struct graphics_driver *driver;
 270     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 271
 272     EnterCriticalSection( &driver_section );
 273
 274     /* display driver is a special case */
 275     if (!strcmpiW( name, displayW ))
 276     {
 277         driver = load_display_driver();
 278         LeaveCriticalSection( &driver_section );
 279         return &driver->funcs;
 280     }
 281
 282     if ((module = GetModuleHandleW( name )))
 283     {
 284         for (driver = first_driver; driver; driver = driver->next)
 285         {
 286             if (driver->module == module)
 287             {
 288                 driver->count++;
 289                 LeaveCriticalSection( &driver_section );
 290                 return &driver->funcs;
 291             }
 292         }
 293     }
 294
 295     if (!(module = LoadLibraryW( name )))
 296     {
 297         LeaveCriticalSection( &driver_section );
 298         return NULL;
 299     }
 300
 301     if (!(driver = create_driver( module )))
 302     {
 303         FreeLibrary( module );
 304         LeaveCriticalSection( &driver_section );
 305         return NULL;
 306     }
 307
 308     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 309     LeaveCriticalSection( &driver_section );
 310     return &driver->funcs;
 311 }
 312
 313
 314 /**********************************************************************
 315  *           DRIVER_get_driver
 316  *
 317  * Get a new copy of an existing driver.
 318  */
 319 const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs )
 320 {
 321     struct graphics_driver *driver;
 322
 323     EnterCriticalSection( &driver_section );
 324     for (driver = first_driver; driver; driver = driver->next)
 325         if (&driver->funcs == funcs) break;
 326     if (!driver) ERR( "driver not found, trouble ahead\n" );
 327     driver->count++;
 328     LeaveCriticalSection( &driver_section );
 329     return funcs;
 330 }
 331
 332
 333 /**********************************************************************
 334  *           DRIVER_release_driver
 335  *
 336  * Release a driver by decrementing ref count and freeing it if needed.
 337  */
 338 void DRIVER_release_driver( const DC_FUNCTIONS *funcs )
 339 {
 340     struct graphics_driver *driver;
 341
 342     EnterCriticalSection( &driver_section );
 343
 344     for (driver = first_driver; driver; driver = driver->next)
 345         if (&driver->funcs == funcs) break;
 346
 347     if (!driver) goto done;
 348     if (--driver->count) goto done;
 349
 350     /* removed last reference, free it */
 351     if (driver->next) driver->next->prev = driver->prev;
 352     if (driver->prev) driver->prev->next = driver->next;
 353     else first_driver = driver->next;
 354     if (driver == display_driver) display_driver = NULL;
 355
 356     FreeLibrary( driver->module );
 357     HeapFree( GetProcessHeap(), 0, driver );
 358  done:
 359     LeaveCriticalSection( &driver_section );
 360 }
 361
 362
 363 /*****************************************************************************
 364  *      DRIVER_GetDriverName
 365  *
 366  */
 367 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 368 {
 369     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 370     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 371     static const WCHAR empty_strW[] = { 0 };
 372     WCHAR *p;
 373
 374     /* display is a special case */
 375     if (!strcmpiW( device, displayW ))
 376     {
 377         lstrcpynW( driver, displayW, size );
 378         return TRUE;
 379     }
 380
 381     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 382     if(!size) {
 383         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 384         return FALSE;
 385     }
 386     p = strchrW(driver, ',');
 387     if(!p)
 388     {
 389         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 390         return FALSE;
 391     }
 392     *p = 0;
 393     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 394     return TRUE;
 395 }
 396
 397
 398 /***********************************************************************
 399  *           GdiConvertToDevmodeW    (GDI32.@)
 400  */
 401 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 402 {
 403     DEVMODEW *dmW;
 404     WORD dmW_size;
 405
 406     dmW_size = dmA->dmSize + CCHDEVICENAME;
 407     if (dmA->dmSize >= (const char *)dmA->dmFormName - (const char *)dmA + CCHFORMNAME)
 408         dmW_size += CCHFORMNAME;
 409
 410     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 411     if (!dmW) return NULL;
 412
 413     MultiByteToWideChar(CP_ACP, 0, dmA->dmDeviceName, CCHDEVICENAME,
 414                                    dmW->dmDeviceName, CCHDEVICENAME);
 415     /* copy slightly more, to avoid long computations */
 416     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA->dmSize - CCHDEVICENAME);
 417
 418     if (dmA->dmSize >= (const char *)dmA->dmFormName - (const char *)dmA + CCHFORMNAME)
 419     {
 420         MultiByteToWideChar(CP_ACP, 0, dmA->dmFormName, CCHFORMNAME,
 421                                        dmW->dmFormName, CCHFORMNAME);
 422         if (dmA->dmSize > (const char *)&dmA->dmLogPixels - (const char *)dmA)
 423             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA->dmSize - ((const char *)&dmA->dmLogPixels - (const char *)dmA));
 424     }
 425
 426     if (dmA->dmDriverExtra)
 427         memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA->dmSize, dmA->dmDriverExtra);
 428
 429     dmW->dmSize = dmW_size;
 430
 431     return dmW;
 432 }
 433
 434
 435 /*****************************************************************************
 436  *      @ [GDI32.100]
 437  *
 438  * This should thunk to 16-bit and simply call the proc with the given args.
 439  */
 440 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 441                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 442 {
 443     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 444     return -1;
 445 }
 446
 447 /*****************************************************************************
 448  *      @ [GDI32.101]
 449  *
 450  * This should load the correct driver for lpszDevice and calls this driver's
 451  * ExtDeviceModePropSheet proc.
 452  *
 453  * Note: The driver calls a callback routine for each property sheet page; these
 454  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 455  * The layout of this structure is:
 456  *
 457  * struct
 458  * {
 459  *   DWORD  nPages;
 460  *   DWORD  unknown;
 461  *   HPROPSHEETPAGE  pages[10];
 462  * };
 463  */
 464 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 465                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 466 {
 467     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 468     return -1;
 469 }
 470
 471 /*****************************************************************************
 472  *      @ [GDI32.102]
 473  *
 474  * This should load the correct driver for lpszDevice and calls this driver's
 475  * ExtDeviceMode proc.
 476  *
 477  * FIXME: convert ExtDeviceMode to unicode in the driver interface
 478  */
 479 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 480                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 481                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 482                                     LPSTR lpszProfile, DWORD fwMode )
 483 {
 484     WCHAR deviceW[300];
 485     WCHAR bufW[300];
 486     char buf[300];
 487     HDC hdc;
 488     DC *dc;
 489     INT ret = -1;
 490     INT (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
 491
 492     TRACE("(%p, %p, %s, %s, %p, %s, %ld)\n",
 493           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 494
 495     if (!lpszDevice) return -1;
 496     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 497
 498     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 499
 500     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 501
 502     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 503
 504     if ((dc = DC_GetDCPtr( hdc )))
 505     {
 506         pExtDeviceMode = dc->funcs->pExtDeviceMode;
 507         GDI_ReleaseObj( hdc );
 508         if (pExtDeviceMode)
 509             ret = pExtDeviceMode(buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 510                                             lpdmInput, lpszProfile, fwMode);
 511     }
 512     DeleteDC( hdc );
 513     return ret;
 514 }
 515
 516 /****************************************************************************
 517  *      @ [GDI32.103]
 518  *
 519  * This should load the correct driver for lpszDevice and calls this driver's
 520  * AdvancedSetupDialog proc.
 521  */
 522 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 523                                           LPDEVMODEA devin, LPDEVMODEA devout )
 524 {
 525     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 526     return -1;
 527 }
 528
 529 /*****************************************************************************
 530  *      @ [GDI32.104]
 531  *
 532  * This should load the correct driver for lpszDevice and calls this driver's
 533  * DeviceCapabilities proc.
 534  *
 535  * FIXME: convert DeviceCapabilities to unicode in the driver interface
 536  */
 537 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 538                                            WORD fwCapability, LPSTR lpszOutput,
 539                                            LPDEVMODEA lpdm )
 540 {
 541     WCHAR deviceW[300];
 542     WCHAR bufW[300];
 543     char buf[300];
 544     HDC hdc;
 545     DC *dc;
 546     INT ret = -1;
 547
 548     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 549
 550     if (!lpszDevice) return -1;
 551     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 552
 553     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 554
 555     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 556
 557     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 558
 559     if ((dc = DC_GetDCPtr( hdc )))
 560     {
 561         if (dc->funcs->pDeviceCapabilities)
 562             ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
 563                                                   fwCapability, lpszOutput, lpdm );
 564         GDI_ReleaseObj( hdc );
 565     }
 566     DeleteDC( hdc );
 567     return ret;
 568 }
 569
 570
 571 /************************************************************************
 572  *             Escape  [GDI32.@]
 573  */
 574 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
 575 {
 576     INT ret;
 577     POINT *pt;
 578
 579     switch (escape)
 580     {
 581     case ABORTDOC:
 582         return AbortDoc( hdc );
 583
 584     case ENDDOC:
 585         return EndDoc( hdc );
 586
 587     case GETPHYSPAGESIZE:
 588         pt = out_data;
 589         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
 590         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
 591         return 1;
 592
 593     case GETPRINTINGOFFSET:
 594         pt = out_data;
 595         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
 596         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
 597         return 1;
 598
 599     case GETSCALINGFACTOR:
 600         pt = out_data;
 601         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
 602         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
 603         return 1;
 604
 605     case NEWFRAME:
 606         return EndPage( hdc );
 607
 608     case SETABORTPROC:
 609         return SetAbortProc( hdc, (ABORTPROC)in_data );
 610
 611     case STARTDOC:
 612         {
 613             DOCINFOA doc;
 614             char *name = NULL;
 615
 616             /* in_data may not be 0 terminated so we must copy it */
 617             if (in_data)
 618             {
 619                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
 620                 memcpy( name, in_data, in_count );
 621                 name[in_count] = 0;
 622             }
 623             /* out_data is actually a pointer to the DocInfo structure and used as
 624              * a second input parameter */
 625             if (out_data) doc = *(DOCINFOA *)out_data;
 626             else
 627             {
 628                 doc.cbSize = sizeof(doc);
 629                 doc.lpszOutput = NULL;
 630                 doc.lpszDatatype = NULL;
 631                 doc.fwType = 0;
 632             }
 633             doc.lpszDocName = name;
 634             ret = StartDocA( hdc, &doc );
 635             HeapFree( GetProcessHeap(), 0, name );
 636             if (ret > 0) ret = StartPage( hdc );
 637             return ret;
 638         }
 639
 640     case QUERYESCSUPPORT:
 641         {
 642             const INT *ptr = (const INT *)in_data;
 643             if (in_count < sizeof(INT)) return 0;
 644             switch(*ptr)
 645             {
 646             case ABORTDOC:
 647             case ENDDOC:
 648             case GETPHYSPAGESIZE:
 649             case GETPRINTINGOFFSET:
 650             case GETSCALINGFACTOR:
 651             case NEWFRAME:
 652             case QUERYESCSUPPORT:
 653             case SETABORTPROC:
 654             case STARTDOC:
 655                 return TRUE;
 656             }
 657             break;
 658         }
 659     }
 660
 661     /* if not handled internally, pass it to the driver */
 662     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
 663 }
 664
 665
 666 /******************************************************************************
 667  *              ExtEscape       [GDI32.@]
 668  *
 669  * PARAMS
 670  *    hdc         [I] Handle to device context
 671  *    nEscape     [I] Escape function
 672  *    cbInput     [I] Number of bytes in input structure
 673  *    lpszInData  [I] Pointer to input structure
 674  *    cbOutput    [I] Number of bytes in output structure
 675  *    lpszOutData [O] Pointer to output structure
 676  *
 677  * RETURNS
 678  *    Success: >0
 679  *    Not implemented: 0
 680  *    Failure: <0
 681  */
 682 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
 683                       INT cbOutput, LPSTR lpszOutData )
 684 {
 685     INT ret = 0;
 686     DC * dc = DC_GetDCPtr( hdc );
 687     if (dc)
 688     {
 689         if (dc->funcs->pExtEscape)
 690             ret = dc->funcs->pExtEscape( dc->physDev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
 691         GDI_ReleaseObj( hdc );
 692     }
 693     return ret;
 694 }
 695
 696
 697 /*******************************************************************
 698  *      DrawEscape [GDI32.@]
 699  *
 700  *
 701  */
 702 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
 703 {
 704     FIXME("DrawEscape, stub\n");
 705     return 0;
 706 }