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 <string.h>
  25 #include "winbase.h"
  26 #include "winreg.h"
  27
  28 #include "gdi.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  32
  33 struct graphics_driver
  34 {
  35     struct graphics_driver *next;
  36     struct graphics_driver *prev;
  37     HMODULE                 module;  /* module handle */
  38     unsigned int            count;   /* reference count */
  39     DC_FUNCTIONS            funcs;
  40 };
  41
  42 static struct graphics_driver *first_driver;
  43 static struct graphics_driver *display_driver;
  44 static CRITICAL_SECTION driver_section = CRITICAL_SECTION_INIT( "driver_section" );
  45
  46 /**********************************************************************
  47  *           create_driver
  48  *
  49  * Allocate and fill the driver structure for a given module.
  50  */
  51 static struct graphics_driver *create_driver( HMODULE module )
  52 {
  53     struct graphics_driver *driver;
  54
  55     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  56     driver->next   = NULL;
  57     driver->prev   = NULL;
  58     driver->module = module;
  59     driver->count  = 1;
  60
  61     /* fill the function table */
  62
  63 #define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
  64
  65     GET_FUNC(AbortDoc);
  66     GET_FUNC(AbortPath);
  67     GET_FUNC(AngleArc);
  68     GET_FUNC(Arc);
  69     GET_FUNC(ArcTo);
  70     GET_FUNC(BeginPath);
  71     GET_FUNC(BitBlt);
  72     GET_FUNC(ChoosePixelFormat);
  73     GET_FUNC(Chord);
  74     GET_FUNC(CloseFigure);
  75     GET_FUNC(CreateBitmap);
  76     GET_FUNC(CreateDC);
  77     GET_FUNC(CreateDIBSection);
  78     GET_FUNC(DeleteBitmap);
  79     GET_FUNC(DeleteDC);
  80     GET_FUNC(DescribePixelFormat);
  81     GET_FUNC(DeviceCapabilities);
  82     GET_FUNC(Ellipse);
  83     GET_FUNC(EndDoc);
  84     GET_FUNC(EndPage);
  85     GET_FUNC(EndPath);
  86     GET_FUNC(EnumDeviceFonts);
  87     GET_FUNC(ExcludeClipRect);
  88     GET_FUNC(ExtDeviceMode);
  89     GET_FUNC(ExtEscape);
  90     GET_FUNC(ExtFloodFill);
  91     GET_FUNC(ExtSelectClipRgn);
  92     GET_FUNC(ExtTextOut);
  93     GET_FUNC(FillPath);
  94     GET_FUNC(FillRgn);
  95     GET_FUNC(FlattenPath);
  96     GET_FUNC(FrameRgn);
  97     GET_FUNC(GdiComment);
  98     GET_FUNC(GetBitmapBits);
  99     GET_FUNC(GetCharWidth);
 100     GET_FUNC(GetDCOrgEx);
 101     GET_FUNC(GetDIBColorTable);
 102     GET_FUNC(GetDIBits);
 103     GET_FUNC(GetDeviceCaps);
 104     GET_FUNC(GetDeviceGammaRamp);
 105     GET_FUNC(GetNearestColor);
 106     GET_FUNC(GetPixel);
 107     GET_FUNC(GetPixelFormat);
 108     GET_FUNC(GetSystemPaletteEntries);
 109     GET_FUNC(GetTextExtentPoint);
 110     GET_FUNC(GetTextMetrics);
 111     GET_FUNC(IntersectClipRect);
 112     GET_FUNC(InvertRgn);
 113     GET_FUNC(LineTo);
 114     GET_FUNC(MoveTo);
 115     GET_FUNC(ModifyWorldTransform);
 116     GET_FUNC(OffsetClipRgn);
 117     GET_FUNC(OffsetViewportOrg);
 118     GET_FUNC(OffsetWindowOrg);
 119     GET_FUNC(PaintRgn);
 120     GET_FUNC(PatBlt);
 121     GET_FUNC(Pie);
 122     GET_FUNC(PolyBezier);
 123     GET_FUNC(PolyBezierTo);
 124     GET_FUNC(PolyDraw);
 125     GET_FUNC(PolyPolygon);
 126     GET_FUNC(PolyPolyline);
 127     GET_FUNC(Polygon);
 128     GET_FUNC(Polyline);
 129     GET_FUNC(PolylineTo);
 130     GET_FUNC(RealizeDefaultPalette);
 131     GET_FUNC(RealizePalette);
 132     GET_FUNC(Rectangle);
 133     GET_FUNC(ResetDC);
 134     GET_FUNC(RestoreDC);
 135     GET_FUNC(RoundRect);
 136     GET_FUNC(SaveDC);
 137     GET_FUNC(ScaleViewportExt);
 138     GET_FUNC(ScaleWindowExt);
 139     GET_FUNC(SelectBitmap);
 140     GET_FUNC(SelectBrush);
 141     GET_FUNC(SelectClipPath);
 142     GET_FUNC(SelectFont);
 143     GET_FUNC(SelectPalette);
 144     GET_FUNC(SelectPen);
 145     GET_FUNC(SetBitmapBits);
 146     GET_FUNC(SetBkColor);
 147     GET_FUNC(SetBkMode);
 148     GET_FUNC(SetDCOrg);
 149     GET_FUNC(SetDIBColorTable);
 150     GET_FUNC(SetDIBits);
 151     GET_FUNC(SetDIBitsToDevice);
 152     GET_FUNC(SetDeviceClipping);
 153     GET_FUNC(SetDeviceGammaRamp);
 154     GET_FUNC(SetMapMode);
 155     GET_FUNC(SetMapperFlags);
 156     GET_FUNC(SetPixel);
 157     GET_FUNC(SetPixelFormat);
 158     GET_FUNC(SetPolyFillMode);
 159     GET_FUNC(SetROP2);
 160     GET_FUNC(SetRelAbs);
 161     GET_FUNC(SetStretchBltMode);
 162     GET_FUNC(SetTextAlign);
 163     GET_FUNC(SetTextCharacterExtra);
 164     GET_FUNC(SetTextColor);
 165     GET_FUNC(SetTextJustification);
 166     GET_FUNC(SetViewportExt);
 167     GET_FUNC(SetViewportOrg);
 168     GET_FUNC(SetWindowExt);
 169     GET_FUNC(SetWindowOrg);
 170     GET_FUNC(SetWorldTransform);
 171     GET_FUNC(StartDoc);
 172     GET_FUNC(StartPage);
 173     GET_FUNC(StretchBlt);
 174     GET_FUNC(StretchDIBits);
 175     GET_FUNC(StrokeAndFillPath);
 176     GET_FUNC(StrokePath);
 177     GET_FUNC(SwapBuffers);
 178     GET_FUNC(WidenPath);
 179 #undef GET_FUNC
 180
 181     /* add it to the list */
 182     driver->prev = NULL;
 183     if ((driver->next = first_driver)) driver->next->prev = driver;
 184     first_driver = driver;
 185     return driver;
 186 }
 187
 188
 189 /**********************************************************************
 190  *           load_display_driver
 191  *
 192  * Special case for loading the display driver: get the name from the config file
 193  */
 194 static struct graphics_driver *load_display_driver(void)
 195 {
 196     char buffer[MAX_PATH];
 197     HMODULE module;
 198     HKEY hkey;
 199
 200     if (display_driver)  /* already loaded */
 201     {
 202         display_driver->count++;
 203         return display_driver;
 204     }
 205
 206     strcpy( buffer, "x11drv" );  /* default value */
 207     if (!RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\Wine", &hkey ))
 208     {
 209         DWORD type, count = sizeof(buffer);
 210         RegQueryValueExA( hkey, "GraphicsDriver", 0, &type, buffer, &count );
 211         RegCloseKey( hkey );
 212     }
 213
 214     if (!(module = LoadLibraryA( buffer )))
 215     {
 216         MESSAGE( "Could not load graphics driver '%s'\n", buffer );
 217         return NULL;
 218     }
 219
 220     if (!(display_driver = create_driver( module )))
 221     {
 222         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 223         FreeLibrary( module );
 224         return NULL;
 225     }
 226
 227     display_driver->count++;  /* we don't want to free it */
 228     return display_driver;
 229 }
 230
 231
 232 /**********************************************************************
 233  *           DRIVER_load_driver
 234  */
 235 const DC_FUNCTIONS *DRIVER_load_driver( LPCSTR name )
 236 {
 237     HMODULE module;
 238     struct graphics_driver *driver;
 239
 240     EnterCriticalSection( &driver_section );
 241
 242     /* display driver is a special case */
 243     if (!strcasecmp( name, "display" ))
 244     {
 245         driver = load_display_driver();
 246         LeaveCriticalSection( &driver_section );
 247         return &driver->funcs;
 248     }
 249
 250     if ((module = GetModuleHandleA( name )))
 251     {
 252         for (driver = first_driver; driver; driver = driver->next)
 253         {
 254             if (driver->module == module)
 255             {
 256                 driver->count++;
 257                 LeaveCriticalSection( &driver_section );
 258                 return &driver->funcs;
 259             }
 260         }
 261     }
 262
 263     if (!(module = LoadLibraryA( name )))
 264     {
 265         LeaveCriticalSection( &driver_section );
 266         return NULL;
 267     }
 268
 269     if (!(driver = create_driver( module )))
 270     {
 271         FreeLibrary( module );
 272         LeaveCriticalSection( &driver_section );
 273         return NULL;
 274     }
 275
 276     TRACE( "loaded driver %p for %s\n", driver, name );
 277     LeaveCriticalSection( &driver_section );
 278     return &driver->funcs;
 279 }
 280
 281
 282 /**********************************************************************
 283  *           DRIVER_get_driver
 284  *
 285  * Get a new copy of an existing driver.
 286  */
 287 const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs )
 288 {
 289     struct graphics_driver *driver;
 290
 291     EnterCriticalSection( &driver_section );
 292     for (driver = first_driver; driver; driver = driver->next)
 293         if (&driver->funcs == funcs) break;
 294     if (!driver) ERR( "driver not found, trouble ahead\n" );
 295     driver->count++;
 296     LeaveCriticalSection( &driver_section );
 297     return funcs;
 298 }
 299
 300
 301 /**********************************************************************
 302  *           DRIVER_release_driver
 303  *
 304  * Release a driver by decrementing ref count and freeing it if needed.
 305  */
 306 void DRIVER_release_driver( const DC_FUNCTIONS *funcs )
 307 {
 308     struct graphics_driver *driver;
 309
 310     EnterCriticalSection( &driver_section );
 311
 312     for (driver = first_driver; driver; driver = driver->next)
 313         if (&driver->funcs == funcs) break;
 314
 315     if (!driver) goto done;
 316     if (--driver->count) goto done;
 317
 318     /* removed last reference, free it */
 319     if (driver->next) driver->next->prev = driver->prev;
 320     if (driver->prev) driver->prev->next = driver->next;
 321     else first_driver = driver->next;
 322     if (driver == display_driver) display_driver = NULL;
 323
 324     FreeLibrary( driver->module );
 325     HeapFree( GetProcessHeap(), 0, driver );
 326  done:
 327     LeaveCriticalSection( &driver_section );
 328 }
 329
 330
 331 /*****************************************************************************
 332  *      DRIVER_GetDriverName
 333  *
 334  */
 335 BOOL DRIVER_GetDriverName( LPCSTR device, LPSTR driver, DWORD size )
 336 {
 337     char *p;
 338
 339     /* display is a special case */
 340     if (!strcasecmp( device, "display" ))
 341     {
 342         lstrcpynA( driver, "display", size );
 343         return TRUE;
 344     }
 345
 346     size = GetProfileStringA("devices", device, "", driver, size);
 347     if(!size) {
 348         WARN("Unable to find '%s' in [devices] section of win.ini\n", device);
 349         return FALSE;
 350     }
 351     p = strchr(driver, ',');
 352     if(!p)
 353     {
 354         WARN("'%s' entry in [devices] section of win.ini is malformed.\n", device);
 355         return FALSE;
 356     }
 357     *p = '\0';
 358     TRACE("Found '%s' for '%s'\n", driver, device);
 359     return TRUE;
 360 }
 361
 362 /*****************************************************************************
 363  *      @ [GDI32.100]
 364  *
 365  * This should thunk to 16-bit and simply call the proc with the given args.
 366  */
 367 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 368                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 369 {
 370     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 371     return -1;
 372 }
 373
 374 /*****************************************************************************
 375  *      @ [GDI32.101]
 376  *
 377  * This should load the correct driver for lpszDevice and calls this driver's
 378  * ExtDeviceModePropSheet proc.
 379  *
 380  * Note: The driver calls a callback routine for each property sheet page; these
 381  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 382  * The layout of this structure is:
 383  *
 384  * struct
 385  * {
 386  *   DWORD  nPages;
 387  *   DWORD  unknown;
 388  *   HPROPSHEETPAGE  pages[10];
 389  * };
 390  */
 391 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 392                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 393 {
 394     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 395     return -1;
 396 }
 397
 398 /*****************************************************************************
 399  *      @ [GDI32.102]
 400  *
 401  * This should load the correct driver for lpszDevice and calls this driver's
 402  * ExtDeviceMode proc.
 403  */
 404 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 405                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 406                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 407                                     LPSTR lpszProfile, DWORD fwMode )
 408 {
 409     char buf[300];
 410     HDC hdc;
 411     DC *dc;
 412     INT ret = -1;
 413     INT (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
 414
 415     TRACE("(%p, %p, %s, %s, %p, %s, %ld)\n",
 416           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 417
 418     if(!DRIVER_GetDriverName( lpszDevice, buf, sizeof(buf) )) return -1;
 419
 420     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 421
 422     if ((dc = DC_GetDCPtr( hdc )))
 423     {
 424         pExtDeviceMode = dc->funcs->pExtDeviceMode;
 425         GDI_ReleaseObj( hdc );
 426         if (pExtDeviceMode)
 427             ret = pExtDeviceMode(buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 428                                             lpdmInput, lpszProfile, fwMode);
 429     }
 430     DeleteDC( hdc );
 431     return ret;
 432 }
 433
 434 /****************************************************************************
 435  *      @ [GDI32.103]
 436  *
 437  * This should load the correct driver for lpszDevice and calls this driver's
 438  * AdvancedSetupDialog proc.
 439  */
 440 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 441                                           LPDEVMODEA devin, LPDEVMODEA devout )
 442 {
 443     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 444     return -1;
 445 }
 446
 447 /*****************************************************************************
 448  *      @ [GDI32.104]
 449  *
 450  * This should load the correct driver for lpszDevice and calls this driver's
 451  * DeviceCapabilities proc.
 452  */
 453 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 454                                            WORD fwCapability, LPSTR lpszOutput,
 455                                            LPDEVMODEA lpdm )
 456 {
 457     char buf[300];
 458     HDC hdc;
 459     DC *dc;
 460     INT ret = -1;
 461
 462     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 463
 464     if(!DRIVER_GetDriverName( lpszDevice, buf, sizeof(buf) )) return -1;
 465
 466     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 467
 468     if ((dc = DC_GetDCPtr( hdc )))
 469     {
 470         if (dc->funcs->pDeviceCapabilities)
 471             ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
 472                                                   fwCapability, lpszOutput, lpdm );
 473         GDI_ReleaseObj( hdc );
 474     }
 475     DeleteDC( hdc );
 476     return ret;
 477 }