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push 378fe7a60681a28e8b22f62dcfe122d585b92570
[wine/hacks.git] / dlls / gdi32 / driver.c
blob101bad4cd467dc34bc102bb2f2a588eec4c11cb4
1 /*
2 * Graphics driver management functions
3 *
4 * Copyright 1994 Bob Amstadt
5 * Copyright 1996, 2001 Alexandre Julliard
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include "config.h"
23 #include "wine/port.h"
24
25 #include <stdarg.h>
26 #include <string.h>
27 #include <stdio.h>
28 #include "windef.h"
29 #include "winbase.h"
30 #include "winreg.h"
31
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, { (DWORD_PTR)(__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 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(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(UnrealizePalette);
197 GET_FUNC(WidenPath);
198
199 /* OpenGL32 */
200 GET_FUNC(wglCreateContext);
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 /* add it to the list */
215 driver->prev = NULL;
216 if ((driver->next = first_driver)) driver->next->prev = driver;
217 first_driver = driver;
218 return driver;
219 }
220
221
222 /**********************************************************************
223 * load_display_driver
224 *
225 * Special case for loading the display driver: get the name from the config file
226 */
227 static struct graphics_driver *load_display_driver(void)
228 {
229 char buffer[MAX_PATH], libname[32], *name, *next;
230 HMODULE module = 0;
231 HKEY hkey;
232
233 if (display_driver) /* already loaded */
234 {
235 display_driver->count++;
236 return display_driver;
237 }
238
239 strcpy( buffer, "x11" ); /* default value */
240 /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
241 if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
242 {
243 DWORD type, count = sizeof(buffer);
244 RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
245 RegCloseKey( hkey );
246 }
247
248 name = buffer;
249 while (name)
250 {
251 next = strchr( name, ',' );
252 if (next) *next++ = 0;
253
254 snprintf( libname, sizeof(libname), "wine%s.drv", name );
255 if ((module = LoadLibraryA( libname )) != 0) break;
256 name = next;
257 }
258
259 if (!(display_driver = create_driver( module )))
260 {
261 MESSAGE( "Could not create graphics driver '%s'\n", buffer );
262 FreeLibrary( module );
263 ExitProcess(1);
264 }
265
266 display_driver->count++; /* we don't want to free it */
267 return display_driver;
268 }
269
270
271 /**********************************************************************
272 * DRIVER_load_driver
273 */
274 const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name )
275 {
276 HMODULE module;
277 struct graphics_driver *driver;
278 static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
279 static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
280
281 EnterCriticalSection( &driver_section );
282
283 /* display driver is a special case */
284 if (!strcmpiW( name, displayW ) ||
285 !strcmpiW( name, display1W ))
286 {
287 driver = load_display_driver();
288 LeaveCriticalSection( &driver_section );
289 return &driver->funcs;
290 }
291
292 if ((module = GetModuleHandleW( name )))
293 {
294 for (driver = first_driver; driver; driver = driver->next)
295 {
296 if (driver->module == module)
297 {
298 driver->count++;
299 LeaveCriticalSection( &driver_section );
300 return &driver->funcs;
301 }
302 }
303 }
304
305 if (!(module = LoadLibraryW( name )))
306 {
307 LeaveCriticalSection( &driver_section );
308 return NULL;
309 }
310
311 if (!(driver = create_driver( module )))
312 {
313 FreeLibrary( module );
314 LeaveCriticalSection( &driver_section );
315 return NULL;
316 }
317
318 TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
319 LeaveCriticalSection( &driver_section );
320 return &driver->funcs;
321 }
322
323
324 /**********************************************************************
325 * DRIVER_get_driver
326 *
327 * Get a new copy of an existing driver.
328 */
329 const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs )
330 {
331 struct graphics_driver *driver;
332
333 EnterCriticalSection( &driver_section );
334 for (driver = first_driver; driver; driver = driver->next)
335 if (&driver->funcs == funcs) break;
336 if (!driver) ERR( "driver not found, trouble ahead\n" );
337 driver->count++;
338 LeaveCriticalSection( &driver_section );
339 return funcs;
340 }
341
342
343 /**********************************************************************
344 * DRIVER_release_driver
345 *
346 * Release a driver by decrementing ref count and freeing it if needed.
347 */
348 void DRIVER_release_driver( const DC_FUNCTIONS *funcs )
349 {
350 struct graphics_driver *driver;
351
352 EnterCriticalSection( &driver_section );
353
354 for (driver = first_driver; driver; driver = driver->next)
355 if (&driver->funcs == funcs) break;
356
357 if (!driver) goto done;
358 if (--driver->count) goto done;
359
360 /* removed last reference, free it */
361 if (driver->next) driver->next->prev = driver->prev;
362 if (driver->prev) driver->prev->next = driver->next;
363 else first_driver = driver->next;
364 if (driver == display_driver) display_driver = NULL;
365
366 FreeLibrary( driver->module );
367 HeapFree( GetProcessHeap(), 0, driver );
368 done:
369 LeaveCriticalSection( &driver_section );
370 }
371
372
373 /*****************************************************************************
374 * DRIVER_GetDriverName
375 *
376 */
377 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
378 {
379 static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
380 static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
381 static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
382 static const WCHAR empty_strW[] = { 0 };
383 WCHAR *p;
384
385 /* display is a special case */
386 if (!strcmpiW( device, displayW ) ||
387 !strcmpiW( device, display1W ))
388 {
389 lstrcpynW( driver, displayW, size );
390 return TRUE;
391 }
392
393 size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
394 if(!size) {
395 WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
396 return FALSE;
397 }
398 p = strchrW(driver, ',');
399 if(!p)
400 {
401 WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
402 return FALSE;
403 }
404 *p = 0;
405 TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
406 return TRUE;
407 }
408
409
410 /***********************************************************************
411 * GdiConvertToDevmodeW (GDI32.@)
412 */
413 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
414 {
415 DEVMODEW *dmW;
416 WORD dmW_size, dmA_size;
417
418 dmA_size = dmA->dmSize;
419
420 /* this is the minimal dmSize that XP accepts */
421 if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
422 return NULL;
423
424 if (dmA_size > sizeof(DEVMODEA))
425 dmA_size = sizeof(DEVMODEA);
426
427 dmW_size = dmA_size + CCHDEVICENAME;
428 if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
429 dmW_size += CCHFORMNAME;
430
431 dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
432 if (!dmW) return NULL;
433
434 MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
435 dmW->dmDeviceName, CCHDEVICENAME);
436 /* copy slightly more, to avoid long computations */
437 memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);
438
439 if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
440 {
441 if (dmA->dmFields & DM_FORMNAME)
442 MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
443 dmW->dmFormName, CCHFORMNAME);
444 else
445 dmW->dmFormName[0] = 0;
446
447 if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
448 memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
449 }
450
451 if (dmA->dmDriverExtra)
452 memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA_size, dmA->dmDriverExtra);
453
454 dmW->dmSize = dmW_size;
455
456 return dmW;
457 }
458
459
460 /*****************************************************************************
461 * @ [GDI32.100]
462 *
463 * This should thunk to 16-bit and simply call the proc with the given args.
464 */
465 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
466 LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
467 {
468 FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
469 return -1;
470 }
471
472 /*****************************************************************************
473 * @ [GDI32.101]
474 *
475 * This should load the correct driver for lpszDevice and calls this driver's
476 * ExtDeviceModePropSheet proc.
477 *
478 * Note: The driver calls a callback routine for each property sheet page; these
479 * pages are supposed to be filled into the structure pointed to by lpPropSheet.
480 * The layout of this structure is:
481 *
482 * struct
483 * {
484 * DWORD nPages;
485 * DWORD unknown;
486 * HPROPSHEETPAGE pages[10];
487 * };
488 */
489 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
490 LPCSTR lpszPort, LPVOID lpPropSheet )
491 {
492 FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
493 return -1;
494 }
495
496 /*****************************************************************************
497 * @ [GDI32.102]
498 *
499 * This should load the correct driver for lpszDevice and calls this driver's
500 * ExtDeviceMode proc.
501 *
502 * FIXME: convert ExtDeviceMode to unicode in the driver interface
503 */
504 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
505 LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
506 LPSTR lpszPort, LPDEVMODEA lpdmInput,
507 LPSTR lpszProfile, DWORD fwMode )
508 {
509 WCHAR deviceW[300];
510 WCHAR bufW[300];
511 char buf[300];
512 HDC hdc;
513 DC *dc;
514 INT ret = -1;
515
516 TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
517 hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
518
519 if (!lpszDevice) return -1;
520 if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
521
522 if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
523
524 if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
525
526 if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
527
528 if ((dc = get_dc_ptr( hdc )))
529 {
530 if (dc->funcs->pExtDeviceMode)
531 ret = dc->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
532 lpdmInput, lpszProfile, fwMode );
533 release_dc_ptr( dc );
534 }
535 DeleteDC( hdc );
536 return ret;
537 }
538
539 /****************************************************************************
540 * @ [GDI32.103]
541 *
542 * This should load the correct driver for lpszDevice and calls this driver's
543 * AdvancedSetupDialog proc.
544 */
545 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
546 LPDEVMODEA devin, LPDEVMODEA devout )
547 {
548 TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
549 return -1;
550 }
551
552 /*****************************************************************************
553 * @ [GDI32.104]
554 *
555 * This should load the correct driver for lpszDevice and calls this driver's
556 * DeviceCapabilities proc.
557 *
558 * FIXME: convert DeviceCapabilities to unicode in the driver interface
559 */
560 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
561 WORD fwCapability, LPSTR lpszOutput,
562 LPDEVMODEA lpdm )
563 {
564 WCHAR deviceW[300];
565 WCHAR bufW[300];
566 char buf[300];
567 HDC hdc;
568 DC *dc;
569 INT ret = -1;
570
571 TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
572
573 if (!lpszDevice) return -1;
574 if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
575
576 if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
577
578 if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
579
580 if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
581
582 if ((dc = get_dc_ptr( hdc )))
583 {
584 if (dc->funcs->pDeviceCapabilities)
585 ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
586 fwCapability, lpszOutput, lpdm );
587 release_dc_ptr( dc );
588 }
589 DeleteDC( hdc );
590 return ret;
591 }
592
593
594 /************************************************************************
595 * Escape [GDI32.@]
596 */
597 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
598 {
599 INT ret;
600 POINT *pt;
601
602 switch (escape)
603 {
604 case ABORTDOC:
605 return AbortDoc( hdc );
606
607 case ENDDOC:
608 return EndDoc( hdc );
609
610 case GETPHYSPAGESIZE:
611 pt = out_data;
612 pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
613 pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
614 return 1;
615
616 case GETPRINTINGOFFSET:
617 pt = out_data;
618 pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
619 pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
620 return 1;
621
622 case GETSCALINGFACTOR:
623 pt = out_data;
624 pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
625 pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
626 return 1;
627
628 case NEWFRAME:
629 return EndPage( hdc );
630
631 case SETABORTPROC:
632 return SetAbortProc( hdc, (ABORTPROC)in_data );
633
634 case STARTDOC:
635 {
636 DOCINFOA doc;
637 char *name = NULL;
638
639 /* in_data may not be 0 terminated so we must copy it */
640 if (in_data)
641 {
642 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
643 memcpy( name, in_data, in_count );
644 name[in_count] = 0;
645 }
646 /* out_data is actually a pointer to the DocInfo structure and used as
647 * a second input parameter */
648 if (out_data) doc = *(DOCINFOA *)out_data;
649 else
650 {
651 doc.cbSize = sizeof(doc);
652 doc.lpszOutput = NULL;
653 doc.lpszDatatype = NULL;
654 doc.fwType = 0;
655 }
656 doc.lpszDocName = name;
657 ret = StartDocA( hdc, &doc );
658 HeapFree( GetProcessHeap(), 0, name );
659 if (ret > 0) ret = StartPage( hdc );
660 return ret;
661 }
662
663 case QUERYESCSUPPORT:
664 {
665 const INT *ptr = (const INT *)in_data;
666 if (in_count < sizeof(INT)) return 0;
667 switch(*ptr)
668 {
669 case ABORTDOC:
670 case ENDDOC:
671 case GETPHYSPAGESIZE:
672 case GETPRINTINGOFFSET:
673 case GETSCALINGFACTOR:
674 case NEWFRAME:
675 case QUERYESCSUPPORT:
676 case SETABORTPROC:
677 case STARTDOC:
678 return TRUE;
679 }
680 break;
681 }
682 }
683
684 /* if not handled internally, pass it to the driver */
685 return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
686 }
687
688
689 /******************************************************************************
690 * ExtEscape [GDI32.@]
691 *
692 * Access capabilities of a particular device that are not available through GDI.
693 *
694 * PARAMS
695 * hdc [I] Handle to device context
696 * nEscape [I] Escape function
697 * cbInput [I] Number of bytes in input structure
698 * lpszInData [I] Pointer to input structure
699 * cbOutput [I] Number of bytes in output structure
700 * lpszOutData [O] Pointer to output structure
701 *
702 * RETURNS
703 * Success: >0
704 * Not implemented: 0
705 * Failure: <0
706 */
707 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
708 INT cbOutput, LPSTR lpszOutData )
709 {
710 INT ret = 0;
711 DC * dc = get_dc_ptr( hdc );
712 if (dc)
713 {
714 if (dc->funcs->pExtEscape)
715 ret = dc->funcs->pExtEscape( dc->physDev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
716 release_dc_ptr( dc );
717 }
718 return ret;
719 }
720
721
722 /*******************************************************************
723 * DrawEscape [GDI32.@]
724 *
725 *
726 */
727 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
728 {
729 FIXME("DrawEscape, stub\n");
730 return 0;
731 }
732
733 /*******************************************************************
734 * NamedEscape [GDI32.@]
735 */
736 INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
737 INT cbOutput, LPSTR lpszOutData )
738 {
739 FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
740 hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
741 lpszOutData);
742 return 0;
743 }
useful hacks and other patches not (yet) suitable for mainline