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 "win16drv.h"
  14 #include "debugtools.h"
  15
  16 DEFAULT_DEBUG_CHANNEL(driver);
  17
  18 struct graphics_driver
  19 {
  20     struct graphics_driver *next;
  21     struct graphics_driver *prev;
  22     HMODULE                 module;  /* module handle */
  23     unsigned int            count;   /* reference count */
  24     DC_FUNCTIONS            funcs;
  25 };
  26
  27 static struct graphics_driver *first_driver;
  28 static struct graphics_driver *display_driver;
  29 static const DC_FUNCTIONS *win16_driver;
  30
  31
  32 /**********************************************************************
  33  *           create_driver
  34  *
  35  * Allocate and fill the driver structure for a given module.
  36  */
  37 static struct graphics_driver *create_driver( HMODULE module )
  38 {
  39     struct graphics_driver *driver;
  40
  41     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  42     driver->next   = NULL;
  43     driver->prev   = NULL;
  44     driver->module = module;
  45     driver->count  = 1;
  46
  47     /* fill the function table */
  48
  49 #define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
  50
  51     GET_FUNC(AbortDoc);
  52     GET_FUNC(AbortPath);
  53     GET_FUNC(AngleArc);
  54     GET_FUNC(Arc);
  55     GET_FUNC(ArcTo);
  56     GET_FUNC(BeginPath);
  57     GET_FUNC(BitBlt);
  58     GET_FUNC(BitmapBits);
  59     GET_FUNC(ChoosePixelFormat);
  60     GET_FUNC(Chord);
  61     GET_FUNC(CloseFigure);
  62     GET_FUNC(CreateBitmap);
  63     GET_FUNC(CreateDC);
  64     GET_FUNC(CreateDIBSection);
  65     GET_FUNC(DeleteDC);
  66     GET_FUNC(DeleteObject);
  67     GET_FUNC(DescribePixelFormat);
  68     GET_FUNC(DeviceCapabilities);
  69     GET_FUNC(Ellipse);
  70     GET_FUNC(EndDoc);
  71     GET_FUNC(EndPage);
  72     GET_FUNC(EndPath);
  73     GET_FUNC(EnumDeviceFonts);
  74     GET_FUNC(ExcludeClipRect);
  75     GET_FUNC(ExtDeviceMode);
  76     GET_FUNC(ExtEscape);
  77     GET_FUNC(ExtFloodFill);
  78     GET_FUNC(ExtTextOut);
  79     GET_FUNC(FillPath);
  80     GET_FUNC(FillRgn);
  81     GET_FUNC(FlattenPath);
  82     GET_FUNC(FrameRgn);
  83     GET_FUNC(GetCharWidth);
  84     GET_FUNC(GetDCOrgEx);
  85     GET_FUNC(GetDeviceCaps);
  86     GET_FUNC(GetDeviceGammaRamp);
  87     GET_FUNC(GetPixel);
  88     GET_FUNC(GetPixelFormat);
  89     GET_FUNC(GetTextExtentPoint);
  90     GET_FUNC(GetTextMetrics);
  91     GET_FUNC(IntersectClipRect);
  92     GET_FUNC(InvertRgn);
  93     GET_FUNC(LineTo);
  94     GET_FUNC(MoveTo);
  95     GET_FUNC(OffsetClipRgn);
  96     GET_FUNC(OffsetViewportOrg);
  97     GET_FUNC(OffsetWindowOrg);
  98     GET_FUNC(PaintRgn);
  99     GET_FUNC(PatBlt);
 100     GET_FUNC(Pie);
 101     GET_FUNC(PolyBezier);
 102     GET_FUNC(PolyBezierTo);
 103     GET_FUNC(PolyDraw);
 104     GET_FUNC(PolyPolygon);
 105     GET_FUNC(PolyPolyline);
 106     GET_FUNC(Polygon);
 107     GET_FUNC(Polyline);
 108     GET_FUNC(PolylineTo);
 109     GET_FUNC(RealizePalette);
 110     GET_FUNC(Rectangle);
 111     GET_FUNC(RestoreDC);
 112     GET_FUNC(RoundRect);
 113     GET_FUNC(SaveDC);
 114     GET_FUNC(ScaleViewportExt);
 115     GET_FUNC(ScaleWindowExt);
 116     GET_FUNC(SelectClipPath);
 117     GET_FUNC(SelectClipRgn);
 118     GET_FUNC(SelectObject);
 119     GET_FUNC(SelectPalette);
 120     GET_FUNC(SetBkColor);
 121     GET_FUNC(SetBkMode);
 122     GET_FUNC(SetDIBitsToDevice);
 123     GET_FUNC(SetDeviceClipping);
 124     GET_FUNC(SetDeviceGammaRamp);
 125     GET_FUNC(SetMapMode);
 126     GET_FUNC(SetMapperFlags);
 127     GET_FUNC(SetPixel);
 128     GET_FUNC(SetPixelFormat);
 129     GET_FUNC(SetPolyFillMode);
 130     GET_FUNC(SetROP2);
 131     GET_FUNC(SetRelAbs);
 132     GET_FUNC(SetStretchBltMode);
 133     GET_FUNC(SetTextAlign);
 134     GET_FUNC(SetTextCharacterExtra);
 135     GET_FUNC(SetTextColor);
 136     GET_FUNC(SetTextJustification);
 137     GET_FUNC(SetViewportExt);
 138     GET_FUNC(SetViewportOrg);
 139     GET_FUNC(SetWindowExt);
 140     GET_FUNC(SetWindowOrg);
 141     GET_FUNC(StartDoc);
 142     GET_FUNC(StartPage);
 143     GET_FUNC(StretchBlt);
 144     GET_FUNC(StretchDIBits);
 145     GET_FUNC(StrokeAndFillPath);
 146     GET_FUNC(StrokePath);
 147     GET_FUNC(SwapBuffers);
 148     GET_FUNC(WidenPath);
 149 #undef GET_FUNC
 150
 151     /* add it to the list */
 152     driver->prev = NULL;
 153     if ((driver->next = first_driver)) driver->next->prev = driver;
 154     first_driver = driver;
 155     return driver;
 156 }
 157
 158
 159 /**********************************************************************
 160  *           load_display_driver
 161  *
 162  * Special case for loading the display driver: get the name from the config file
 163  */
 164 static struct graphics_driver *load_display_driver(void)
 165 {
 166     char buffer[MAX_PATH];
 167     HMODULE module;
 168     HKEY hkey;
 169
 170     if (display_driver)  /* already loaded */
 171     {
 172         display_driver->count++;
 173         return display_driver;
 174     }
 175
 176     strcpy( buffer, "x11drv" );  /* default value */
 177     if (!RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\Wine", &hkey ))
 178     {
 179         DWORD type, count = sizeof(buffer);
 180         RegQueryValueExA( hkey, "GraphicsDriver", 0, &type, buffer, &count );
 181         RegCloseKey( hkey );
 182     }
 183
 184     if (!(module = LoadLibraryA( buffer )))
 185     {
 186         MESSAGE( "Could not load graphics driver '%s'\n", buffer );
 187         return NULL;
 188     }
 189
 190     if (!(display_driver = create_driver( module )))
 191     {
 192         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 193         FreeLibrary( module );
 194         return NULL;
 195     }
 196
 197     display_driver->count++;  /* we don't want to free it */
 198     return display_driver;
 199 }
 200
 201
 202 /**********************************************************************
 203  *           DRIVER_load_driver
 204  */
 205 const DC_FUNCTIONS *DRIVER_load_driver( LPCSTR name )
 206 {
 207     HMODULE module;
 208     struct graphics_driver *driver;
 209
 210     RtlAcquirePebLock();
 211
 212     /* display driver is a special case */
 213     if (!strcasecmp( name, "display" ))
 214     {
 215         driver = load_display_driver();
 216         RtlReleasePebLock();
 217         return &driver->funcs;
 218     }
 219
 220     if ((module = GetModuleHandleA( name )))
 221     {
 222         for (driver = first_driver; driver; driver = driver->next)
 223         {
 224             if (driver->module == module)
 225             {
 226                 driver->count++;
 227                 RtlReleasePebLock();
 228                 return &driver->funcs;
 229             }
 230         }
 231     }
 232
 233     if (!(module = LoadLibraryA( name )))
 234     {
 235         if (!win16_driver) win16_driver = WIN16DRV_Init();
 236         RtlReleasePebLock();
 237         return win16_driver;
 238     }
 239
 240     if (!(driver = create_driver( module )))
 241     {
 242         FreeLibrary( module );
 243         RtlReleasePebLock();
 244         return NULL;
 245     }
 246
 247     TRACE( "loaded driver %p for %s\n", driver, name );
 248     RtlReleasePebLock();
 249     return &driver->funcs;
 250 }
 251
 252
 253 /**********************************************************************
 254  *           DRIVER_get_driver
 255  *
 256  * Get a new copy of an existing driver.
 257  */
 258 const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs )
 259 {
 260     struct graphics_driver *driver;
 261
 262     RtlAcquirePebLock();
 263     if (funcs != win16_driver)
 264     {
 265         for (driver = first_driver; driver; driver = driver->next)
 266             if (&driver->funcs == funcs) break;
 267         if (!driver) ERR( "driver not found, trouble ahead\n" );
 268         driver->count++;
 269     }
 270     RtlReleasePebLock();
 271     return funcs;
 272 }
 273
 274
 275 /**********************************************************************
 276  *           DRIVER_release_driver
 277  *
 278  * Release a driver by decrementing ref count and freeing it if needed.
 279  */
 280 void DRIVER_release_driver( const DC_FUNCTIONS *funcs )
 281 {
 282     struct graphics_driver *driver;
 283
 284     RtlAcquirePebLock();
 285
 286     if (funcs == win16_driver) goto done;
 287
 288     for (driver = first_driver; driver; driver = driver->next)
 289         if (&driver->funcs == funcs) break;
 290
 291     if (!driver) goto done;
 292     if (--driver->count) goto done;
 293
 294     /* removed last reference, free it */
 295     if (driver->next) driver->next->prev = driver->prev;
 296     if (driver->prev) driver->prev->next = driver->next;
 297     else first_driver = driver->next;
 298     if (driver == display_driver) display_driver = NULL;
 299
 300     FreeLibrary( driver->module );
 301     HeapFree( GetProcessHeap(), 0, driver );
 302  done:
 303     RtlReleasePebLock();
 304 }
 305
 306
 307 /*****************************************************************************
 308  *      DRIVER_GetDriverName
 309  *
 310  */
 311 BOOL DRIVER_GetDriverName( LPCSTR device, LPSTR driver, DWORD size )
 312 {
 313     char *p;
 314     size = GetProfileStringA("devices", device, "", driver, size);
 315     if(!size) {
 316         WARN("Unable to find '%s' in [devices] section of win.ini\n", device);
 317         return FALSE;
 318     }
 319     p = strchr(driver, ',');
 320     if(!p)
 321     {
 322         WARN("'%s' entry in [devices] section of win.ini is malformed.\n", device);
 323         return FALSE;
 324     }
 325     *p = '\0';
 326     TRACE("Found '%s' for '%s'\n", driver, device);
 327     return TRUE;
 328 }
 329
 330 /*****************************************************************************
 331  *      @ [GDI32.100]
 332  *
 333  * This should thunk to 16-bit and simply call the proc with the given args.
 334  */
 335 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 336                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 337 {
 338     FIXME("(%p, %04x, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 339     return -1;
 340 }
 341
 342 /*****************************************************************************
 343  *      @ [GDI32.101]
 344  *
 345  * This should load the correct driver for lpszDevice and calls this driver's
 346  * ExtDeviceModePropSheet proc.
 347  *
 348  * Note: The driver calls a callback routine for each property sheet page; these
 349  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 350  * The layout of this structure is:
 351  *
 352  * struct
 353  * {
 354  *   DWORD  nPages;
 355  *   DWORD  unknown;
 356  *   HPROPSHEETPAGE  pages[10];
 357  * };
 358  */
 359 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 360                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 361 {
 362     FIXME("(%04x, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 363     return -1;
 364 }
 365
 366 /*****************************************************************************
 367  *      @ [GDI32.102]
 368  *
 369  * This should load the correct driver for lpszDevice and calls this driver's
 370  * ExtDeviceMode proc.
 371  */
 372 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 373                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 374                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 375                                     LPSTR lpszProfile, DWORD fwMode )
 376 {
 377     char buf[300];
 378     HDC hdc;
 379     DC *dc;
 380     INT ret = -1;
 381     INT (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
 382
 383     TRACE("(%04x, %p, %s, %s, %p, %s, %ld)\n",
 384           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 385
 386     if(!DRIVER_GetDriverName( lpszDevice, buf, sizeof(buf) )) return -1;
 387
 388     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 389
 390     if ((dc = DC_GetDCPtr( hdc )))
 391     {
 392         pExtDeviceMode = dc->funcs->pExtDeviceMode;
 393         GDI_ReleaseObj( hdc );
 394         if (pExtDeviceMode)
 395             ret = pExtDeviceMode(buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 396                                             lpdmInput, lpszProfile, fwMode);
 397     }
 398     DeleteDC( hdc );
 399     return ret;
 400 }
 401
 402 /****************************************************************************
 403  *      @ [GDI32.103]
 404  *
 405  * This should load the correct driver for lpszDevice and calls this driver's
 406  * AdvancedSetupDialog proc.
 407  */
 408 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 409                                           LPDEVMODEA devin, LPDEVMODEA devout )
 410 {
 411     TRACE("(%04x, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 412     return -1;
 413 }
 414
 415 /*****************************************************************************
 416  *      @ [GDI32.104]
 417  *
 418  * This should load the correct driver for lpszDevice and calls this driver's
 419  * DeviceCapabilities proc.
 420  */
 421 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 422                                            WORD fwCapability, LPSTR lpszOutput,
 423                                            LPDEVMODEA lpdm )
 424 {
 425     char buf[300];
 426     HDC hdc;
 427     DC *dc;
 428     INT ret = -1;
 429
 430     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 431
 432     if(!DRIVER_GetDriverName( lpszDevice, buf, sizeof(buf) )) return -1;
 433
 434     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 435
 436     if ((dc = DC_GetDCPtr( hdc )))
 437     {
 438         if (dc->funcs->pDeviceCapabilities)
 439             ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
 440                                                   fwCapability, lpszOutput, lpdm );
 441         GDI_ReleaseObj( hdc );
 442     }
 443     DeleteDC( hdc );
 444     return ret;
 445 }