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 "windef.h"
  28 #include "winbase.h"
  29 #include "winreg.h"
  30
  31 #include "gdi.h"
  32 #include "gdi_private.h"
  33 #include "wine/unicode.h"
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  37
  38 struct graphics_driver
  39 {
  40     struct graphics_driver *next;
  41     struct graphics_driver *prev;
  42     HMODULE                 module;  /* module handle */
  43     unsigned int            count;   /* reference count */
  44     DC_FUNCTIONS            funcs;
  45 };
  46
  47 static struct graphics_driver *first_driver;
  48 static struct graphics_driver *display_driver;
  49
  50 static CRITICAL_SECTION driver_section;
  51 static CRITICAL_SECTION_DEBUG critsect_debug =
  52 {
  53     0, 0, &driver_section,
  54     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  55       0, 0, { 0, (DWORD)(__FILE__ ": driver_section") }
  56 };
  57 static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  58
  59 /**********************************************************************
  60  *           create_driver
  61  *
  62  * Allocate and fill the driver structure for a given module.
  63  */
  64 static struct graphics_driver *create_driver( HMODULE module )
  65 {
  66     struct graphics_driver *driver;
  67
  68     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  69     driver->next   = NULL;
  70     driver->prev   = NULL;
  71     driver->module = module;
  72     driver->count  = 1;
  73
  74     /* fill the function table */
  75
  76 #define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
  77
  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(GetNearestColor);
 120     GET_FUNC(GetPixel);
 121     GET_FUNC(GetPixelFormat);
 122     GET_FUNC(GetSystemPaletteEntries);
 123     GET_FUNC(GetTextExtentPoint);
 124     GET_FUNC(GetTextMetrics);
 125     GET_FUNC(IntersectClipRect);
 126     GET_FUNC(InvertRgn);
 127     GET_FUNC(LineTo);
 128     GET_FUNC(MoveTo);
 129     GET_FUNC(ModifyWorldTransform);
 130     GET_FUNC(OffsetClipRgn);
 131     GET_FUNC(OffsetViewportOrg);
 132     GET_FUNC(OffsetWindowOrg);
 133     GET_FUNC(PaintRgn);
 134     GET_FUNC(PatBlt);
 135     GET_FUNC(Pie);
 136     GET_FUNC(PolyBezier);
 137     GET_FUNC(PolyBezierTo);
 138     GET_FUNC(PolyDraw);
 139     GET_FUNC(PolyPolygon);
 140     GET_FUNC(PolyPolyline);
 141     GET_FUNC(Polygon);
 142     GET_FUNC(Polyline);
 143     GET_FUNC(PolylineTo);
 144     GET_FUNC(RealizeDefaultPalette);
 145     GET_FUNC(RealizePalette);
 146     GET_FUNC(Rectangle);
 147     GET_FUNC(ResetDC);
 148     GET_FUNC(RestoreDC);
 149     GET_FUNC(RoundRect);
 150     GET_FUNC(SaveDC);
 151     GET_FUNC(ScaleViewportExt);
 152     GET_FUNC(ScaleWindowExt);
 153     GET_FUNC(SelectBitmap);
 154     GET_FUNC(SelectBrush);
 155     GET_FUNC(SelectClipPath);
 156     GET_FUNC(SelectFont);
 157     GET_FUNC(SelectPalette);
 158     GET_FUNC(SelectPen);
 159     GET_FUNC(SetArcDirection);
 160     GET_FUNC(SetBitmapBits);
 161     GET_FUNC(SetBkColor);
 162     GET_FUNC(SetBkMode);
 163     GET_FUNC(SetDCBrushColor);
 164     GET_FUNC(SetDCOrg);
 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(WidenPath);
 196 #undef GET_FUNC
 197
 198     /* add it to the list */
 199     driver->prev = NULL;
 200     if ((driver->next = first_driver)) driver->next->prev = driver;
 201     first_driver = driver;
 202     return driver;
 203 }
 204
 205
 206 /**********************************************************************
 207  *           load_display_driver
 208  *
 209  * Special case for loading the display driver: get the name from the config file
 210  */
 211 static struct graphics_driver *load_display_driver(void)
 212 {
 213     char buffer[MAX_PATH], *name, *next;
 214     HMODULE module = 0;
 215     HKEY hkey;
 216
 217     if (display_driver)  /* already loaded */
 218     {
 219         display_driver->count++;
 220         return display_driver;
 221     }
 222
 223     strcpy( buffer, "x11drv,ttydrv" );  /* default value */
 224     if (!RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\Wine", &hkey ))
 225     {
 226         DWORD type, count = sizeof(buffer);
 227         RegQueryValueExA( hkey, "GraphicsDriver", 0, &type, buffer, &count );
 228         RegCloseKey( hkey );
 229     }
 230
 231     name = buffer;
 232     while (name)
 233     {
 234         next = strchr( name, ',' );
 235         if (next) *next++ = 0;
 236
 237         if ((module = LoadLibraryA( name )) != 0) break;
 238         name = next;
 239     }
 240     if (!module)
 241     {
 242         MESSAGE( "wine: Could not load graphics driver '%s'.\n", buffer );
 243         if (!strcasecmp( buffer, "x11drv" ))
 244             MESSAGE( "Make sure that your X server is running and that $DISPLAY is set correctly.\n" );
 245         ExitProcess(1);
 246     }
 247
 248     if (!(display_driver = create_driver( module )))
 249     {
 250         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 251         FreeLibrary( module );
 252         ExitProcess(1);
 253     }
 254
 255     display_driver->count++;  /* we don't want to free it */
 256     return display_driver;
 257 }
 258
 259
 260 /**********************************************************************
 261  *           DRIVER_load_driver
 262  */
 263 const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name )
 264 {
 265     HMODULE module;
 266     struct graphics_driver *driver;
 267     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 268
 269     EnterCriticalSection( &driver_section );
 270
 271     /* display driver is a special case */
 272     if (!strcmpiW( name, displayW ))
 273     {
 274         driver = load_display_driver();
 275         LeaveCriticalSection( &driver_section );
 276         return &driver->funcs;
 277     }
 278
 279     if ((module = GetModuleHandleW( name )))
 280     {
 281         for (driver = first_driver; driver; driver = driver->next)
 282         {
 283             if (driver->module == module)
 284             {
 285                 driver->count++;
 286                 LeaveCriticalSection( &driver_section );
 287                 return &driver->funcs;
 288             }
 289         }
 290     }
 291
 292     if (!(module = LoadLibraryW( name )))
 293     {
 294         LeaveCriticalSection( &driver_section );
 295         return NULL;
 296     }
 297
 298     if (!(driver = create_driver( module )))
 299     {
 300         FreeLibrary( module );
 301         LeaveCriticalSection( &driver_section );
 302         return NULL;
 303     }
 304
 305     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 306     LeaveCriticalSection( &driver_section );
 307     return &driver->funcs;
 308 }
 309
 310
 311 /**********************************************************************
 312  *           DRIVER_get_driver
 313  *
 314  * Get a new copy of an existing driver.
 315  */
 316 const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs )
 317 {
 318     struct graphics_driver *driver;
 319
 320     EnterCriticalSection( &driver_section );
 321     for (driver = first_driver; driver; driver = driver->next)
 322         if (&driver->funcs == funcs) break;
 323     if (!driver) ERR( "driver not found, trouble ahead\n" );
 324     driver->count++;
 325     LeaveCriticalSection( &driver_section );
 326     return funcs;
 327 }
 328
 329
 330 /**********************************************************************
 331  *           DRIVER_release_driver
 332  *
 333  * Release a driver by decrementing ref count and freeing it if needed.
 334  */
 335 void DRIVER_release_driver( const DC_FUNCTIONS *funcs )
 336 {
 337     struct graphics_driver *driver;
 338
 339     EnterCriticalSection( &driver_section );
 340
 341     for (driver = first_driver; driver; driver = driver->next)
 342         if (&driver->funcs == funcs) break;
 343
 344     if (!driver) goto done;
 345     if (--driver->count) goto done;
 346
 347     /* removed last reference, free it */
 348     if (driver->next) driver->next->prev = driver->prev;
 349     if (driver->prev) driver->prev->next = driver->next;
 350     else first_driver = driver->next;
 351     if (driver == display_driver) display_driver = NULL;
 352
 353     FreeLibrary( driver->module );
 354     HeapFree( GetProcessHeap(), 0, driver );
 355  done:
 356     LeaveCriticalSection( &driver_section );
 357 }
 358
 359
 360 /*****************************************************************************
 361  *      DRIVER_GetDriverName
 362  *
 363  */
 364 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 365 {
 366     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 367     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 368     static const WCHAR empty_strW[] = { 0 };
 369     WCHAR *p;
 370
 371     /* display is a special case */
 372     if (!strcmpiW( device, displayW ))
 373     {
 374         lstrcpynW( driver, displayW, size );
 375         return TRUE;
 376     }
 377
 378     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 379     if(!size) {
 380         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 381         return FALSE;
 382     }
 383     p = strchrW(driver, ',');
 384     if(!p)
 385     {
 386         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 387         return FALSE;
 388     }
 389     *p = 0;
 390     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 391     return TRUE;
 392 }
 393
 394
 395 /***********************************************************************
 396  *           GdiConvertToDevmodeW    (GDI32.@)
 397  */
 398 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 399 {
 400     DEVMODEW *dmW;
 401     WORD dmW_size;
 402
 403     dmW_size = dmA->dmSize + CCHDEVICENAME;
 404     if (dmA->dmSize >= (char *)dmA->dmFormName - (char *)dmA + CCHFORMNAME)
 405         dmW_size += CCHFORMNAME;
 406
 407     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 408     if (!dmW) return NULL;
 409
 410     MultiByteToWideChar(CP_ACP, 0, dmA->dmDeviceName, CCHDEVICENAME,
 411                                    dmW->dmDeviceName, CCHDEVICENAME);
 412     /* copy slightly more, to avoid long computations */
 413     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA->dmSize - CCHDEVICENAME);
 414
 415     if (dmA->dmSize >= (char *)dmA->dmFormName - (char *)dmA + CCHFORMNAME)
 416     {
 417         MultiByteToWideChar(CP_ACP, 0, dmA->dmFormName, CCHFORMNAME,
 418                                        dmW->dmFormName, CCHFORMNAME);
 419         if (dmA->dmSize > (char *)&dmA->dmLogPixels - (char *)dmA)
 420             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA->dmSize - ((char *)&dmA->dmLogPixels - (char *)dmA));
 421     }
 422
 423     if (dmA->dmDriverExtra)
 424         memcpy((char *)dmW + dmW_size, (char *)dmA + dmA->dmSize, dmA->dmDriverExtra);
 425
 426     dmW->dmSize = dmW_size;
 427
 428     return dmW;
 429 }
 430
 431
 432 /*****************************************************************************
 433  *      @ [GDI32.100]
 434  *
 435  * This should thunk to 16-bit and simply call the proc with the given args.
 436  */
 437 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 438                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 439 {
 440     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 441     return -1;
 442 }
 443
 444 /*****************************************************************************
 445  *      @ [GDI32.101]
 446  *
 447  * This should load the correct driver for lpszDevice and calls this driver's
 448  * ExtDeviceModePropSheet proc.
 449  *
 450  * Note: The driver calls a callback routine for each property sheet page; these
 451  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 452  * The layout of this structure is:
 453  *
 454  * struct
 455  * {
 456  *   DWORD  nPages;
 457  *   DWORD  unknown;
 458  *   HPROPSHEETPAGE  pages[10];
 459  * };
 460  */
 461 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 462                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 463 {
 464     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 465     return -1;
 466 }
 467
 468 /*****************************************************************************
 469  *      @ [GDI32.102]
 470  *
 471  * This should load the correct driver for lpszDevice and calls this driver's
 472  * ExtDeviceMode proc.
 473  *
 474  * FIXME: convert ExtDeviceMode to unicode in the driver interface
 475  */
 476 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 477                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 478                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 479                                     LPSTR lpszProfile, DWORD fwMode )
 480 {
 481     WCHAR deviceW[300];
 482     WCHAR bufW[300];
 483     char buf[300];
 484     HDC hdc;
 485     DC *dc;
 486     INT ret = -1;
 487     INT (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
 488
 489     TRACE("(%p, %p, %s, %s, %p, %s, %ld)\n",
 490           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 491
 492     if (!lpszDevice) return -1;
 493     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 494
 495     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 496
 497     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 498
 499     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 500
 501     if ((dc = DC_GetDCPtr( hdc )))
 502     {
 503         pExtDeviceMode = dc->funcs->pExtDeviceMode;
 504         GDI_ReleaseObj( hdc );
 505         if (pExtDeviceMode)
 506             ret = pExtDeviceMode(buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 507                                             lpdmInput, lpszProfile, fwMode);
 508     }
 509     DeleteDC( hdc );
 510     return ret;
 511 }
 512
 513 /****************************************************************************
 514  *      @ [GDI32.103]
 515  *
 516  * This should load the correct driver for lpszDevice and calls this driver's
 517  * AdvancedSetupDialog proc.
 518  */
 519 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 520                                           LPDEVMODEA devin, LPDEVMODEA devout )
 521 {
 522     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 523     return -1;
 524 }
 525
 526 /*****************************************************************************
 527  *      @ [GDI32.104]
 528  *
 529  * This should load the correct driver for lpszDevice and calls this driver's
 530  * DeviceCapabilities proc.
 531  *
 532  * FIXME: convert DeviceCapabilities to unicode in the driver interface
 533  */
 534 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 535                                            WORD fwCapability, LPSTR lpszOutput,
 536                                            LPDEVMODEA lpdm )
 537 {
 538     WCHAR deviceW[300];
 539     WCHAR bufW[300];
 540     char buf[300];
 541     HDC hdc;
 542     DC *dc;
 543     INT ret = -1;
 544
 545     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 546
 547     if (!lpszDevice) return -1;
 548     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 549
 550     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 551
 552     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 553
 554     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 555
 556     if ((dc = DC_GetDCPtr( hdc )))
 557     {
 558         if (dc->funcs->pDeviceCapabilities)
 559             ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
 560                                                   fwCapability, lpszOutput, lpdm );
 561         GDI_ReleaseObj( hdc );
 562     }
 563     DeleteDC( hdc );
 564     return ret;
 565 }
 566
 567
 568 /************************************************************************
 569  *             Escape  [GDI32.@]
 570  */
 571 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
 572 {
 573     INT ret;
 574     POINT *pt;
 575
 576     switch (escape)
 577     {
 578     case ABORTDOC:
 579         return AbortDoc( hdc );
 580
 581     case ENDDOC:
 582         return EndDoc( hdc );
 583
 584     case GETPHYSPAGESIZE:
 585         pt = out_data;
 586         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
 587         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
 588         return 1;
 589
 590     case GETPRINTINGOFFSET:
 591         pt = out_data;
 592         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
 593         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
 594         return 1;
 595
 596     case GETSCALINGFACTOR:
 597         pt = out_data;
 598         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
 599         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
 600         return 1;
 601
 602     case NEWFRAME:
 603         return EndPage( hdc );
 604
 605     case SETABORTPROC:
 606         return SetAbortProc( hdc, (ABORTPROC)in_data );
 607
 608     case STARTDOC:
 609         {
 610             DOCINFOA doc;
 611             char *name = NULL;
 612
 613             /* in_data may not be 0 terminated so we must copy it */
 614             if (in_data)
 615             {
 616                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
 617                 memcpy( name, in_data, in_count );
 618                 name[in_count] = 0;
 619             }
 620             /* out_data is actually a pointer to the DocInfo structure and used as
 621              * a second input parameter */
 622             if (out_data) doc = *(DOCINFOA *)out_data;
 623             else
 624             {
 625                 doc.cbSize = sizeof(doc);
 626                 doc.lpszOutput = NULL;
 627                 doc.lpszDatatype = NULL;
 628                 doc.fwType = 0;
 629             }
 630             doc.lpszDocName = name;
 631             ret = StartDocA( hdc, &doc );
 632             if (name) HeapFree( GetProcessHeap(), 0, name );
 633             if (ret > 0) ret = StartPage( hdc );
 634             return ret;
 635         }
 636
 637     case QUERYESCSUPPORT:
 638         {
 639             INT *ptr = (INT *)in_data;
 640             if (in_count < sizeof(INT)) return 0;
 641             switch(*ptr)
 642             {
 643             case ABORTDOC:
 644             case ENDDOC:
 645             case GETPHYSPAGESIZE:
 646             case GETPRINTINGOFFSET:
 647             case GETSCALINGFACTOR:
 648             case NEWFRAME:
 649             case QUERYESCSUPPORT:
 650             case SETABORTPROC:
 651             case STARTDOC:
 652                 return TRUE;
 653             }
 654             break;
 655         }
 656     }
 657
 658     /* if not handled internally, pass it to the driver */
 659     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
 660 }
 661
 662
 663 /******************************************************************************
 664  *              ExtEscape       [GDI32.@]
 665  *
 666  * PARAMS
 667  *    hdc         [I] Handle to device context
 668  *    nEscape     [I] Escape function
 669  *    cbInput     [I] Number of bytes in input structure
 670  *    lpszInData  [I] Pointer to input structure
 671  *    cbOutput    [I] Number of bytes in output structure
 672  *    lpszOutData [O] Pointer to output structure
 673  *
 674  * RETURNS
 675  *    Success: >0
 676  *    Not implemented: 0
 677  *    Failure: <0
 678  */
 679 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
 680                       INT cbOutput, LPSTR lpszOutData )
 681 {
 682     INT ret = 0;
 683     DC * dc = DC_GetDCPtr( hdc );
 684     if (dc)
 685     {
 686         if (dc->funcs->pExtEscape)
 687             ret = dc->funcs->pExtEscape( dc->physDev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
 688         GDI_ReleaseObj( hdc );
 689     }
 690     return ret;
 691 }
 692
 693
 694 /*******************************************************************
 695  *      DrawEscape [GDI32.@]
 696  *
 697  *
 698  */
 699 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
 700 {
 701     FIXME("DrawEscape, stub\n");
 702     return 0;
 703 }