dlls/gdi/driver.c

   1 /*
   2  * Graphics driver management functions
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  */
   6
   7 #include <string.h>
   8 #include "winbase.h"
   9 #include "winreg.h"
  10 #include "ntddk.h"
  11
  12 #include "gdi.h"
  13 #include "debugtools.h"
  14
  15 DEFAULT_DEBUG_CHANNEL(driver);
  16
  17 struct graphics_driver
  18 {
  19     struct graphics_driver *next;
  20     struct graphics_driver *prev;
  21     HMODULE                 module;  /* module handle */
  22     unsigned int            count;   /* reference count */
  23     DC_FUNCTIONS            funcs;
  24 };
  25
  26 static struct graphics_driver *first_driver;
  27 static struct graphics_driver *display_driver;
  28
  29
  30 /**********************************************************************
  31  *           create_driver
  32  *
  33  * Allocate and fill the driver structure for a given module.
  34  */
  35 static struct graphics_driver *create_driver( HMODULE module )
  36 {
  37     struct graphics_driver *driver;
  38
  39     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  40     driver->next   = NULL;
  41     driver->prev   = NULL;
  42     driver->module = module;
  43     driver->count  = 1;
  44
  45     /* fill the function table */
  46
  47 #define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
  48
  49     GET_FUNC(AbortDoc);
  50     GET_FUNC(AbortPath);
  51     GET_FUNC(AngleArc);
  52     GET_FUNC(Arc);
  53     GET_FUNC(ArcTo);
  54     GET_FUNC(BeginPath);
  55     GET_FUNC(BitBlt);
  56     GET_FUNC(BitmapBits);
  57     GET_FUNC(ChoosePixelFormat);
  58     GET_FUNC(Chord);
  59     GET_FUNC(CloseFigure);
  60     GET_FUNC(CreateBitmap);
  61     GET_FUNC(CreateDC);
  62     GET_FUNC(CreateDIBSection);
  63     GET_FUNC(DeleteDC);
  64     GET_FUNC(DeleteObject);
  65     GET_FUNC(DescribePixelFormat);
  66     GET_FUNC(DeviceCapabilities);
  67     GET_FUNC(Ellipse);
  68     GET_FUNC(EndDoc);
  69     GET_FUNC(EndPage);
  70     GET_FUNC(EndPath);
  71     GET_FUNC(EnumDeviceFonts);
  72     GET_FUNC(ExcludeClipRect);
  73     GET_FUNC(ExtDeviceMode);
  74     GET_FUNC(ExtEscape);
  75     GET_FUNC(ExtFloodFill);
  76     GET_FUNC(ExtTextOut);
  77     GET_FUNC(FillPath);
  78     GET_FUNC(FillRgn);
  79     GET_FUNC(FlattenPath);
  80     GET_FUNC(FrameRgn);
  81     GET_FUNC(GetCharWidth);
  82     GET_FUNC(GetDCOrgEx);
  83     GET_FUNC(GetDeviceCaps);
  84     GET_FUNC(GetDeviceGammaRamp);
  85     GET_FUNC(GetPixel);
  86     GET_FUNC(GetPixelFormat);
  87     GET_FUNC(GetTextExtentPoint);
  88     GET_FUNC(GetTextMetrics);
  89     GET_FUNC(IntersectClipRect);
  90     GET_FUNC(InvertRgn);
  91     GET_FUNC(LineTo);
  92     GET_FUNC(MoveTo);
  93     GET_FUNC(OffsetClipRgn);
  94     GET_FUNC(OffsetViewportOrg);
  95     GET_FUNC(OffsetWindowOrg);
  96     GET_FUNC(PaintRgn);
  97     GET_FUNC(PatBlt);
  98     GET_FUNC(Pie);
  99     GET_FUNC(PolyBezier);
 100     GET_FUNC(PolyBezierTo);
 101     GET_FUNC(PolyDraw);
 102     GET_FUNC(PolyPolygon);
 103     GET_FUNC(PolyPolyline);
 104     GET_FUNC(Polygon);
 105     GET_FUNC(Polyline);
 106     GET_FUNC(PolylineTo);
 107     GET_FUNC(RealizePalette);
 108     GET_FUNC(Rectangle);
 109     GET_FUNC(RestoreDC);
 110     GET_FUNC(RoundRect);
 111     GET_FUNC(SaveDC);
 112     GET_FUNC(ScaleViewportExt);
 113     GET_FUNC(ScaleWindowExt);
 114     GET_FUNC(SelectClipPath);
 115     GET_FUNC(SelectClipRgn);
 116     GET_FUNC(SelectObject);
 117     GET_FUNC(SelectPalette);
 118     GET_FUNC(SetBkColor);
 119     GET_FUNC(SetBkMode);
 120     GET_FUNC(SetDIBitsToDevice);
 121     GET_FUNC(SetDeviceClipping);
 122     GET_FUNC(SetDeviceGammaRamp);
 123     GET_FUNC(SetMapMode);
 124     GET_FUNC(SetMapperFlags);
 125     GET_FUNC(SetPixel);
 126     GET_FUNC(SetPixelFormat);
 127     GET_FUNC(SetPolyFillMode);
 128     GET_FUNC(SetROP2);
 129     GET_FUNC(SetRelAbs);
 130     GET_FUNC(SetStretchBltMode);
 131     GET_FUNC(SetTextAlign);
 132     GET_FUNC(SetTextCharacterExtra);
 133     GET_FUNC(SetTextColor);
 134     GET_FUNC(SetTextJustification);
 135     GET_FUNC(SetViewportExt);
 136     GET_FUNC(SetViewportOrg);
 137     GET_FUNC(SetWindowExt);
 138     GET_FUNC(SetWindowOrg);
 139     GET_FUNC(StartDoc);
 140     GET_FUNC(StartPage);
 141     GET_FUNC(StretchBlt);
 142     GET_FUNC(StretchDIBits);
 143     GET_FUNC(StrokeAndFillPath);
 144     GET_FUNC(StrokePath);
 145     GET_FUNC(SwapBuffers);
 146     GET_FUNC(WidenPath);
 147 #undef GET_FUNC
 148
 149     /* add it to the list */
 150     driver->prev = NULL;
 151     if ((driver->next = first_driver)) driver->next->prev = driver;
 152     first_driver = driver;
 153     return driver;
 154 }
 155
 156
 157 /**********************************************************************
 158  *           load_display_driver
 159  *
 160  * Special case for loading the display driver: get the name from the config file
 161  */
 162 static struct graphics_driver *load_display_driver(void)
 163 {
 164     char buffer[MAX_PATH];
 165     HMODULE module;
 166     HKEY hkey;
 167
 168     if (display_driver)  /* already loaded */
 169     {
 170         display_driver->count++;
 171         return display_driver;
 172     }
 173
 174     strcpy( buffer, "x11drv" );  /* default value */
 175     if (!RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\Wine", &hkey ))
 176     {
 177         DWORD type, count = sizeof(buffer);
 178         RegQueryValueExA( hkey, "GraphicsDriver", 0, &type, buffer, &count );
 179         RegCloseKey( hkey );
 180     }
 181
 182     if (!(module = LoadLibraryA( buffer )))
 183     {
 184         MESSAGE( "Could not load graphics driver '%s'\n", buffer );
 185         return NULL;
 186     }
 187
 188     if (!(display_driver = create_driver( module )))
 189     {
 190         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 191         FreeLibrary( module );
 192         return NULL;
 193     }
 194
 195     display_driver->count++;  /* we don't want to free it */
 196     return display_driver;
 197 }
 198
 199
 200 /**********************************************************************
 201  *           DRIVER_load_driver
 202  */
 203 const DC_FUNCTIONS *DRIVER_load_driver( LPCSTR name )
 204 {
 205     HMODULE module;
 206     struct graphics_driver *driver;
 207
 208     RtlAcquirePebLock();
 209
 210     /* display driver is a special case */
 211     if (!strcasecmp( name, "display" ))
 212     {
 213         driver = load_display_driver();
 214         RtlReleasePebLock();
 215         return &driver->funcs;
 216     }
 217
 218     if ((module = GetModuleHandleA( name )))
 219     {
 220         for (driver = first_driver; driver; driver = driver->next)
 221         {
 222             if (driver->module == module)
 223             {
 224                 driver->count++;
 225                 RtlReleasePebLock();
 226                 return &driver->funcs;
 227             }
 228         }
 229     }
 230
 231     if (!(module = LoadLibraryA( name )))
 232     {
 233         RtlReleasePebLock();
 234         return NULL;
 235     }
 236
 237     if (!(driver = create_driver( module )))
 238     {
 239         FreeLibrary( module );
 240         RtlReleasePebLock();
 241         return NULL;
 242     }
 243
 244     TRACE( "loaded driver %p for %s\n", driver, name );
 245     RtlReleasePebLock();
 246     return &driver->funcs;
 247 }
 248
 249
 250 /**********************************************************************
 251  *           DRIVER_get_driver
 252  *
 253  * Get a new copy of an existing driver.
 254  */
 255 const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs )
 256 {
 257     struct graphics_driver *driver;
 258
 259     RtlAcquirePebLock();
 260     for (driver = first_driver; driver; driver = driver->next)
 261         if (&driver->funcs == funcs) break;
 262     if (!driver) ERR( "driver not found, trouble ahead\n" );
 263     driver->count++;
 264     RtlReleasePebLock();
 265     return funcs;
 266 }
 267
 268
 269 /**********************************************************************
 270  *           DRIVER_release_driver
 271  *
 272  * Release a driver by decrementing ref count and freeing it if needed.
 273  */
 274 void DRIVER_release_driver( const DC_FUNCTIONS *funcs )
 275 {
 276     struct graphics_driver *driver;
 277
 278     RtlAcquirePebLock();
 279
 280     for (driver = first_driver; driver; driver = driver->next)
 281         if (&driver->funcs == funcs) break;
 282
 283     if (!driver) goto done;
 284     if (--driver->count) goto done;
 285
 286     /* removed last reference, free it */
 287     if (driver->next) driver->next->prev = driver->prev;
 288     if (driver->prev) driver->prev->next = driver->next;
 289     else first_driver = driver->next;
 290     if (driver == display_driver) display_driver = NULL;
 291
 292     FreeLibrary( driver->module );
 293     HeapFree( GetProcessHeap(), 0, driver );
 294  done:
 295     RtlReleasePebLock();
 296 }
 297
 298
 299 /*****************************************************************************
 300  *      DRIVER_GetDriverName
 301  *
 302  */
 303 BOOL DRIVER_GetDriverName( LPCSTR device, LPSTR driver, DWORD size )
 304 {
 305     char *p;
 306     size = GetProfileStringA("devices", device, "", driver, size);
 307     if(!size) {
 308         WARN("Unable to find '%s' in [devices] section of win.ini\n", device);
 309         return FALSE;
 310     }
 311     p = strchr(driver, ',');
 312     if(!p)
 313     {
 314         WARN("'%s' entry in [devices] section of win.ini is malformed.\n", device);
 315         return FALSE;
 316     }
 317     *p = '\0';
 318     TRACE("Found '%s' for '%s'\n", driver, device);
 319     return TRUE;
 320 }
 321
 322 /*****************************************************************************
 323  *      @ [GDI32.100]
 324  *
 325  * This should thunk to 16-bit and simply call the proc with the given args.
 326  */
 327 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 328                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 329 {
 330     FIXME("(%p, %04x, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 331     return -1;
 332 }
 333
 334 /*****************************************************************************
 335  *      @ [GDI32.101]
 336  *
 337  * This should load the correct driver for lpszDevice and calls this driver's
 338  * ExtDeviceModePropSheet proc.
 339  *
 340  * Note: The driver calls a callback routine for each property sheet page; these
 341  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 342  * The layout of this structure is:
 343  *
 344  * struct
 345  * {
 346  *   DWORD  nPages;
 347  *   DWORD  unknown;
 348  *   HPROPSHEETPAGE  pages[10];
 349  * };
 350  */
 351 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 352                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 353 {
 354     FIXME("(%04x, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 355     return -1;
 356 }
 357
 358 /*****************************************************************************
 359  *      @ [GDI32.102]
 360  *
 361  * This should load the correct driver for lpszDevice and calls this driver's
 362  * ExtDeviceMode proc.
 363  */
 364 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 365                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 366                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 367                                     LPSTR lpszProfile, DWORD fwMode )
 368 {
 369     char buf[300];
 370     HDC hdc;
 371     DC *dc;
 372     INT ret = -1;
 373
 374     TRACE("(%04x, %p, %s, %s, %p, %s, %ld)\n",
 375           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 376
 377     if(!DRIVER_GetDriverName( lpszDevice, buf, sizeof(buf) )) return -1;
 378
 379     if (!(hdc = CreateICA( buf, NULL, lpszPort, NULL ))) return -1;
 380
 381     if ((dc = DC_GetDCPtr( hdc )))
 382     {
 383         if (dc->funcs->pExtDeviceMode)
 384             ret = dc->funcs->pExtDeviceMode(buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 385                                             lpdmInput, lpszProfile, fwMode);
 386         GDI_ReleaseObj( hdc );
 387     }
 388     DeleteDC( hdc );
 389     return ret;
 390 }
 391
 392 /****************************************************************************
 393  *      @ [GDI32.103]
 394  *
 395  * This should load the correct driver for lpszDevice and calls this driver's
 396  * AdvancedSetupDialog proc.
 397  */
 398 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 399                                           LPDEVMODEA devin, LPDEVMODEA devout )
 400 {
 401     TRACE("(%04x, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 402     return -1;
 403 }
 404
 405 /*****************************************************************************
 406  *      @ [GDI32.104]
 407  *
 408  * This should load the correct driver for lpszDevice and calls this driver's
 409  * DeviceCapabilities proc.
 410  */
 411 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 412                                            WORD fwCapability, LPSTR lpszOutput,
 413                                            LPDEVMODEA lpdm )
 414 {
 415     char buf[300];
 416     HDC hdc;
 417     DC *dc;
 418     INT ret = -1;
 419
 420     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 421
 422     if(!DRIVER_GetDriverName( lpszDevice, buf, sizeof(buf) )) return -1;
 423
 424     if (!(hdc = CreateICA( buf, NULL, lpszPort, NULL ))) return -1;
 425
 426     if ((dc = DC_GetDCPtr( hdc )))
 427     {
 428         if (dc->funcs->pDeviceCapabilities)
 429             ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
 430                                                   fwCapability, lpszOutput, lpdm );
 431         GDI_ReleaseObj( hdc );
 432     }
 433     DeleteDC( hdc );
 434     return ret;
 435 }