dlls/gdi/driver.c

   1 /*
   2  * Graphics driver management functions
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdarg.h>
  25 #include <string.h>
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winreg.h"
  29
  30 #include "gdi.h"
  31 #include "wine/unicode.h"
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  35
  36 struct graphics_driver
  37 {
  38     struct graphics_driver *next;
  39     struct graphics_driver *prev;
  40     HMODULE                 module;  /* module handle */
  41     unsigned int            count;   /* reference count */
  42     DC_FUNCTIONS            funcs;
  43 };
  44
  45 static struct graphics_driver *first_driver;
  46 static struct graphics_driver *display_driver;
  47
  48 static CRITICAL_SECTION driver_section;
  49 static CRITICAL_SECTION_DEBUG critsect_debug =
  50 {
  51     0, 0, &driver_section,
  52     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  53       0, 0, { 0, (DWORD)(__FILE__ ": driver_section") }
  54 };
  55 static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  56
  57 /**********************************************************************
  58  *           create_driver
  59  *
  60  * Allocate and fill the driver structure for a given module.
  61  */
  62 static struct graphics_driver *create_driver( HMODULE module )
  63 {
  64     struct graphics_driver *driver;
  65
  66     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  67     driver->next   = NULL;
  68     driver->prev   = NULL;
  69     driver->module = module;
  70     driver->count  = 1;
  71
  72     /* fill the function table */
  73
  74 #define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
  75
  76     GET_FUNC(AbortDoc);
  77     GET_FUNC(AbortPath);
  78     GET_FUNC(AngleArc);
  79     GET_FUNC(Arc);
  80     GET_FUNC(ArcTo);
  81     GET_FUNC(BeginPath);
  82     GET_FUNC(BitBlt);
  83     GET_FUNC(ChoosePixelFormat);
  84     GET_FUNC(Chord);
  85     GET_FUNC(CloseFigure);
  86     GET_FUNC(CreateBitmap);
  87     GET_FUNC(CreateDC);
  88     GET_FUNC(CreateDIBSection);
  89     GET_FUNC(DeleteBitmap);
  90     GET_FUNC(DeleteDC);
  91     GET_FUNC(DescribePixelFormat);
  92     GET_FUNC(DeviceCapabilities);
  93     GET_FUNC(Ellipse);
  94     GET_FUNC(EndDoc);
  95     GET_FUNC(EndPage);
  96     GET_FUNC(EndPath);
  97     GET_FUNC(EnumDeviceFonts);
  98     GET_FUNC(ExcludeClipRect);
  99     GET_FUNC(ExtDeviceMode);
 100     GET_FUNC(ExtEscape);
 101     GET_FUNC(ExtFloodFill);
 102     GET_FUNC(ExtSelectClipRgn);
 103     GET_FUNC(ExtTextOut);
 104     GET_FUNC(FillPath);
 105     GET_FUNC(FillRgn);
 106     GET_FUNC(FlattenPath);
 107     GET_FUNC(FrameRgn);
 108     GET_FUNC(GdiComment);
 109     GET_FUNC(GetBitmapBits);
 110     GET_FUNC(GetCharWidth);
 111     GET_FUNC(GetDCOrgEx);
 112     GET_FUNC(GetDIBColorTable);
 113     GET_FUNC(GetDIBits);
 114     GET_FUNC(GetDeviceCaps);
 115     GET_FUNC(GetDeviceGammaRamp);
 116     GET_FUNC(GetNearestColor);
 117     GET_FUNC(GetPixel);
 118     GET_FUNC(GetPixelFormat);
 119     GET_FUNC(GetSystemPaletteEntries);
 120     GET_FUNC(GetTextExtentPoint);
 121     GET_FUNC(GetTextMetrics);
 122     GET_FUNC(IntersectClipRect);
 123     GET_FUNC(InvertRgn);
 124     GET_FUNC(LineTo);
 125     GET_FUNC(MoveTo);
 126     GET_FUNC(ModifyWorldTransform);
 127     GET_FUNC(OffsetClipRgn);
 128     GET_FUNC(OffsetViewportOrg);
 129     GET_FUNC(OffsetWindowOrg);
 130     GET_FUNC(PaintRgn);
 131     GET_FUNC(PatBlt);
 132     GET_FUNC(Pie);
 133     GET_FUNC(PolyBezier);
 134     GET_FUNC(PolyBezierTo);
 135     GET_FUNC(PolyDraw);
 136     GET_FUNC(PolyPolygon);
 137     GET_FUNC(PolyPolyline);
 138     GET_FUNC(Polygon);
 139     GET_FUNC(Polyline);
 140     GET_FUNC(PolylineTo);
 141     GET_FUNC(RealizeDefaultPalette);
 142     GET_FUNC(RealizePalette);
 143     GET_FUNC(Rectangle);
 144     GET_FUNC(ResetDC);
 145     GET_FUNC(RestoreDC);
 146     GET_FUNC(RoundRect);
 147     GET_FUNC(SaveDC);
 148     GET_FUNC(ScaleViewportExt);
 149     GET_FUNC(ScaleWindowExt);
 150     GET_FUNC(SelectBitmap);
 151     GET_FUNC(SelectBrush);
 152     GET_FUNC(SelectClipPath);
 153     GET_FUNC(SelectFont);
 154     GET_FUNC(SelectPalette);
 155     GET_FUNC(SelectPen);
 156     GET_FUNC(SetBitmapBits);
 157     GET_FUNC(SetBkColor);
 158     GET_FUNC(SetBkMode);
 159     GET_FUNC(SetDCOrg);
 160     GET_FUNC(SetDIBColorTable);
 161     GET_FUNC(SetDIBits);
 162     GET_FUNC(SetDIBitsToDevice);
 163     GET_FUNC(SetDeviceClipping);
 164     GET_FUNC(SetDeviceGammaRamp);
 165     GET_FUNC(SetMapMode);
 166     GET_FUNC(SetMapperFlags);
 167     GET_FUNC(SetPixel);
 168     GET_FUNC(SetPixelFormat);
 169     GET_FUNC(SetPolyFillMode);
 170     GET_FUNC(SetROP2);
 171     GET_FUNC(SetRelAbs);
 172     GET_FUNC(SetStretchBltMode);
 173     GET_FUNC(SetTextAlign);
 174     GET_FUNC(SetTextCharacterExtra);
 175     GET_FUNC(SetTextColor);
 176     GET_FUNC(SetTextJustification);
 177     GET_FUNC(SetViewportExt);
 178     GET_FUNC(SetViewportOrg);
 179     GET_FUNC(SetWindowExt);
 180     GET_FUNC(SetWindowOrg);
 181     GET_FUNC(SetWorldTransform);
 182     GET_FUNC(StartDoc);
 183     GET_FUNC(StartPage);
 184     GET_FUNC(StretchBlt);
 185     GET_FUNC(StretchDIBits);
 186     GET_FUNC(StrokeAndFillPath);
 187     GET_FUNC(StrokePath);
 188     GET_FUNC(SwapBuffers);
 189     GET_FUNC(WidenPath);
 190 #undef GET_FUNC
 191
 192     /* add it to the list */
 193     driver->prev = NULL;
 194     if ((driver->next = first_driver)) driver->next->prev = driver;
 195     first_driver = driver;
 196     return driver;
 197 }
 198
 199
 200 /**********************************************************************
 201  *           load_display_driver
 202  *
 203  * Special case for loading the display driver: get the name from the config file
 204  */
 205 static struct graphics_driver *load_display_driver(void)
 206 {
 207     char buffer[MAX_PATH];
 208     HMODULE module;
 209     HKEY hkey;
 210
 211     if (display_driver)  /* already loaded */
 212     {
 213         display_driver->count++;
 214         return display_driver;
 215     }
 216
 217     strcpy( buffer, "x11drv" );  /* default value */
 218     if (!RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\Wine", &hkey ))
 219     {
 220         DWORD type, count = sizeof(buffer);
 221         RegQueryValueExA( hkey, "GraphicsDriver", 0, &type, buffer, &count );
 222         RegCloseKey( hkey );
 223     }
 224
 225     if (!(module = LoadLibraryA( buffer )))
 226     {
 227         MESSAGE( "Could not load graphics driver '%s'\n", buffer );
 228         return NULL;
 229     }
 230
 231     if (!(display_driver = create_driver( module )))
 232     {
 233         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 234         FreeLibrary( module );
 235         return NULL;
 236     }
 237
 238     display_driver->count++;  /* we don't want to free it */
 239     return display_driver;
 240 }
 241
 242
 243 /**********************************************************************
 244  *           DRIVER_load_driver
 245  */
 246 const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name )
 247 {
 248     HMODULE module;
 249     struct graphics_driver *driver;
 250     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 251
 252     EnterCriticalSection( &driver_section );
 253
 254     /* display driver is a special case */
 255     if (!strcmpiW( name, displayW ))
 256     {
 257         driver = load_display_driver();
 258         LeaveCriticalSection( &driver_section );
 259         return &driver->funcs;
 260     }
 261
 262     if ((module = GetModuleHandleW( name )))
 263     {
 264         for (driver = first_driver; driver; driver = driver->next)
 265         {
 266             if (driver->module == module)
 267             {
 268                 driver->count++;
 269                 LeaveCriticalSection( &driver_section );
 270                 return &driver->funcs;
 271             }
 272         }
 273     }
 274
 275     if (!(module = LoadLibraryW( name )))
 276     {
 277         LeaveCriticalSection( &driver_section );
 278         return NULL;
 279     }
 280
 281     if (!(driver = create_driver( module )))
 282     {
 283         FreeLibrary( module );
 284         LeaveCriticalSection( &driver_section );
 285         return NULL;
 286     }
 287
 288     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 289     LeaveCriticalSection( &driver_section );
 290     return &driver->funcs;
 291 }
 292
 293
 294 /**********************************************************************
 295  *           DRIVER_get_driver
 296  *
 297  * Get a new copy of an existing driver.
 298  */
 299 const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs )
 300 {
 301     struct graphics_driver *driver;
 302
 303     EnterCriticalSection( &driver_section );
 304     for (driver = first_driver; driver; driver = driver->next)
 305         if (&driver->funcs == funcs) break;
 306     if (!driver) ERR( "driver not found, trouble ahead\n" );
 307     driver->count++;
 308     LeaveCriticalSection( &driver_section );
 309     return funcs;
 310 }
 311
 312
 313 /**********************************************************************
 314  *           DRIVER_release_driver
 315  *
 316  * Release a driver by decrementing ref count and freeing it if needed.
 317  */
 318 void DRIVER_release_driver( const DC_FUNCTIONS *funcs )
 319 {
 320     struct graphics_driver *driver;
 321
 322     EnterCriticalSection( &driver_section );
 323
 324     for (driver = first_driver; driver; driver = driver->next)
 325         if (&driver->funcs == funcs) break;
 326
 327     if (!driver) goto done;
 328     if (--driver->count) goto done;
 329
 330     /* removed last reference, free it */
 331     if (driver->next) driver->next->prev = driver->prev;
 332     if (driver->prev) driver->prev->next = driver->next;
 333     else first_driver = driver->next;
 334     if (driver == display_driver) display_driver = NULL;
 335
 336     FreeLibrary( driver->module );
 337     HeapFree( GetProcessHeap(), 0, driver );
 338  done:
 339     LeaveCriticalSection( &driver_section );
 340 }
 341
 342
 343 /*****************************************************************************
 344  *      DRIVER_GetDriverName
 345  *
 346  */
 347 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 348 {
 349     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 350     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 351     static const WCHAR empty_strW[] = { 0 };
 352     WCHAR *p;
 353
 354     /* display is a special case */
 355     if (!strcmpiW( device, displayW ))
 356     {
 357         lstrcpynW( driver, displayW, size );
 358         return TRUE;
 359     }
 360
 361     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 362     if(!size) {
 363         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 364         return FALSE;
 365     }
 366     p = strchrW(driver, ',');
 367     if(!p)
 368     {
 369         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 370         return FALSE;
 371     }
 372     *p = 0;
 373     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 374     return TRUE;
 375 }
 376
 377
 378 /***********************************************************************
 379  *           GdiConvertToDevmodeW    (GDI32.@)
 380  */
 381 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 382 {
 383     DEVMODEW *dmW;
 384     WORD dmW_size;
 385
 386     dmW_size = dmA->dmSize + CCHDEVICENAME;
 387     if (dmA->dmSize >= (char *)dmA->dmFormName - (char *)dmA + CCHFORMNAME)
 388         dmW_size += CCHFORMNAME;
 389
 390     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 391     if (!dmW) return NULL;
 392
 393     MultiByteToWideChar(CP_ACP, 0, dmA->dmDeviceName, CCHDEVICENAME,
 394                                    dmW->dmDeviceName, CCHDEVICENAME);
 395     /* copy slightly more, to avoid long computations */
 396     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA->dmSize - CCHDEVICENAME);
 397
 398     if (dmA->dmSize >= (char *)dmA->dmFormName - (char *)dmA + CCHFORMNAME)
 399     {
 400         MultiByteToWideChar(CP_ACP, 0, dmA->dmFormName, CCHFORMNAME,
 401                                        dmW->dmFormName, CCHFORMNAME);
 402         if (dmA->dmSize > (char *)&dmA->dmLogPixels - (char *)dmA)
 403             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA->dmSize - ((char *)&dmA->dmLogPixels - (char *)dmA));
 404     }
 405
 406     if (dmA->dmDriverExtra)
 407         memcpy((char *)dmW + dmW_size, (char *)dmA + dmA->dmSize, dmA->dmDriverExtra);
 408
 409     dmW->dmSize = dmW_size;
 410
 411     return dmW;
 412 }
 413
 414
 415 /*****************************************************************************
 416  *      @ [GDI32.100]
 417  *
 418  * This should thunk to 16-bit and simply call the proc with the given args.
 419  */
 420 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 421                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 422 {
 423     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 424     return -1;
 425 }
 426
 427 /*****************************************************************************
 428  *      @ [GDI32.101]
 429  *
 430  * This should load the correct driver for lpszDevice and calls this driver's
 431  * ExtDeviceModePropSheet proc.
 432  *
 433  * Note: The driver calls a callback routine for each property sheet page; these
 434  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 435  * The layout of this structure is:
 436  *
 437  * struct
 438  * {
 439  *   DWORD  nPages;
 440  *   DWORD  unknown;
 441  *   HPROPSHEETPAGE  pages[10];
 442  * };
 443  */
 444 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 445                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 446 {
 447     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 448     return -1;
 449 }
 450
 451 /*****************************************************************************
 452  *      @ [GDI32.102]
 453  *
 454  * This should load the correct driver for lpszDevice and calls this driver's
 455  * ExtDeviceMode proc.
 456  *
 457  * FIXME: convert ExtDeviceMode to unicode in the driver interface
 458  */
 459 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 460                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 461                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 462                                     LPSTR lpszProfile, DWORD fwMode )
 463 {
 464     WCHAR deviceW[300];
 465     WCHAR bufW[300];
 466     char buf[300];
 467     HDC hdc;
 468     DC *dc;
 469     INT ret = -1;
 470     INT (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
 471
 472     TRACE("(%p, %p, %s, %s, %p, %s, %ld)\n",
 473           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 474
 475     if (!lpszDevice) return -1;
 476     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 477
 478     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 479
 480     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 481
 482     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 483
 484     if ((dc = DC_GetDCPtr( hdc )))
 485     {
 486         pExtDeviceMode = dc->funcs->pExtDeviceMode;
 487         GDI_ReleaseObj( hdc );
 488         if (pExtDeviceMode)
 489             ret = pExtDeviceMode(buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 490                                             lpdmInput, lpszProfile, fwMode);
 491     }
 492     DeleteDC( hdc );
 493     return ret;
 494 }
 495
 496 /****************************************************************************
 497  *      @ [GDI32.103]
 498  *
 499  * This should load the correct driver for lpszDevice and calls this driver's
 500  * AdvancedSetupDialog proc.
 501  */
 502 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 503                                           LPDEVMODEA devin, LPDEVMODEA devout )
 504 {
 505     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 506     return -1;
 507 }
 508
 509 /*****************************************************************************
 510  *      @ [GDI32.104]
 511  *
 512  * This should load the correct driver for lpszDevice and calls this driver's
 513  * DeviceCapabilities proc.
 514  *
 515  * FIXME: convert DeviceCapabilities to unicode in the driver interface
 516  */
 517 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 518                                            WORD fwCapability, LPSTR lpszOutput,
 519                                            LPDEVMODEA lpdm )
 520 {
 521     WCHAR deviceW[300];
 522     WCHAR bufW[300];
 523     char buf[300];
 524     HDC hdc;
 525     DC *dc;
 526     INT ret = -1;
 527
 528     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 529
 530     if (!lpszDevice) return -1;
 531     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 532
 533     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 534
 535     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 536
 537     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 538
 539     if ((dc = DC_GetDCPtr( hdc )))
 540     {
 541         if (dc->funcs->pDeviceCapabilities)
 542             ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
 543                                                   fwCapability, lpszOutput, lpdm );
 544         GDI_ReleaseObj( hdc );
 545     }
 546     DeleteDC( hdc );
 547     return ret;
 548 }