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 <string.h>
  22 #include "winbase.h"
  23 #include "winreg.h"
  24 #include "ntddk.h"
  25
  26 #include "gdi.h"
  27 #include "win16drv/win16drv.h"
  28 #include "wine/debug.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  31
  32 struct graphics_driver
  33 {
  34     struct graphics_driver *next;
  35     struct graphics_driver *prev;
  36     HMODULE                 module;  /* module handle */
  37     unsigned int            count;   /* reference count */
  38     DC_FUNCTIONS            funcs;
  39 };
  40
  41 static struct graphics_driver *first_driver;
  42 static struct graphics_driver *display_driver;
  43 static const DC_FUNCTIONS *win16_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(GetBitmapBits);
  98     GET_FUNC(GetCharWidth);
  99     GET_FUNC(GetDCOrgEx);
 100     GET_FUNC(GetDIBColorTable);
 101     GET_FUNC(GetDIBits);
 102     GET_FUNC(GetDeviceCaps);
 103     GET_FUNC(GetDeviceGammaRamp);
 104     GET_FUNC(GetNearestColor);
 105     GET_FUNC(GetPixel);
 106     GET_FUNC(GetPixelFormat);
 107     GET_FUNC(GetSystemPaletteEntries);
 108     GET_FUNC(GetTextExtentPoint);
 109     GET_FUNC(GetTextMetrics);
 110     GET_FUNC(IntersectClipRect);
 111     GET_FUNC(InvertRgn);
 112     GET_FUNC(LineTo);
 113     GET_FUNC(MoveTo);
 114     GET_FUNC(OffsetClipRgn);
 115     GET_FUNC(OffsetViewportOrg);
 116     GET_FUNC(OffsetWindowOrg);
 117     GET_FUNC(PaintRgn);
 118     GET_FUNC(PatBlt);
 119     GET_FUNC(Pie);
 120     GET_FUNC(PolyBezier);
 121     GET_FUNC(PolyBezierTo);
 122     GET_FUNC(PolyDraw);
 123     GET_FUNC(PolyPolygon);
 124     GET_FUNC(PolyPolyline);
 125     GET_FUNC(Polygon);
 126     GET_FUNC(Polyline);
 127     GET_FUNC(PolylineTo);
 128     GET_FUNC(RealizeDefaultPalette);
 129     GET_FUNC(RealizePalette);
 130     GET_FUNC(Rectangle);
 131     GET_FUNC(ResetDC);
 132     GET_FUNC(RestoreDC);
 133     GET_FUNC(RoundRect);
 134     GET_FUNC(SaveDC);
 135     GET_FUNC(ScaleViewportExt);
 136     GET_FUNC(ScaleWindowExt);
 137     GET_FUNC(SelectBitmap);
 138     GET_FUNC(SelectBrush);
 139     GET_FUNC(SelectClipPath);
 140     GET_FUNC(SelectFont);
 141     GET_FUNC(SelectPalette);
 142     GET_FUNC(SelectPen);
 143     GET_FUNC(SetBitmapBits);
 144     GET_FUNC(SetBkColor);
 145     GET_FUNC(SetBkMode);
 146     GET_FUNC(SetDCOrg);
 147     GET_FUNC(SetDIBColorTable);
 148     GET_FUNC(SetDIBits);
 149     GET_FUNC(SetDIBitsToDevice);
 150     GET_FUNC(SetDeviceClipping);
 151     GET_FUNC(SetDeviceGammaRamp);
 152     GET_FUNC(SetMapMode);
 153     GET_FUNC(SetMapperFlags);
 154     GET_FUNC(SetPixel);
 155     GET_FUNC(SetPixelFormat);
 156     GET_FUNC(SetPolyFillMode);
 157     GET_FUNC(SetROP2);
 158     GET_FUNC(SetRelAbs);
 159     GET_FUNC(SetStretchBltMode);
 160     GET_FUNC(SetTextAlign);
 161     GET_FUNC(SetTextCharacterExtra);
 162     GET_FUNC(SetTextColor);
 163     GET_FUNC(SetTextJustification);
 164     GET_FUNC(SetViewportExt);
 165     GET_FUNC(SetViewportOrg);
 166     GET_FUNC(SetWindowExt);
 167     GET_FUNC(SetWindowOrg);
 168     GET_FUNC(StartDoc);
 169     GET_FUNC(StartPage);
 170     GET_FUNC(StretchBlt);
 171     GET_FUNC(StretchDIBits);
 172     GET_FUNC(StrokeAndFillPath);
 173     GET_FUNC(StrokePath);
 174     GET_FUNC(SwapBuffers);
 175     GET_FUNC(WidenPath);
 176 #undef GET_FUNC
 177
 178     /* add it to the list */
 179     driver->prev = NULL;
 180     if ((driver->next = first_driver)) driver->next->prev = driver;
 181     first_driver = driver;
 182     return driver;
 183 }
 184
 185
 186 /**********************************************************************
 187  *           load_display_driver
 188  *
 189  * Special case for loading the display driver: get the name from the config file
 190  */
 191 static struct graphics_driver *load_display_driver(void)
 192 {
 193     char buffer[MAX_PATH];
 194     HMODULE module;
 195     HKEY hkey;
 196
 197     if (display_driver)  /* already loaded */
 198     {
 199         display_driver->count++;
 200         return display_driver;
 201     }
 202
 203     strcpy( buffer, "x11drv" );  /* default value */
 204     if (!RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\Wine", &hkey ))
 205     {
 206         DWORD type, count = sizeof(buffer);
 207         RegQueryValueExA( hkey, "GraphicsDriver", 0, &type, buffer, &count );
 208         RegCloseKey( hkey );
 209     }
 210
 211     if (!(module = LoadLibraryA( buffer )))
 212     {
 213         MESSAGE( "Could not load graphics driver '%s'\n", buffer );
 214         return NULL;
 215     }
 216
 217     if (!(display_driver = create_driver( module )))
 218     {
 219         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 220         FreeLibrary( module );
 221         return NULL;
 222     }
 223
 224     display_driver->count++;  /* we don't want to free it */
 225     return display_driver;
 226 }
 227
 228
 229 /**********************************************************************
 230  *           DRIVER_load_driver
 231  */
 232 const DC_FUNCTIONS *DRIVER_load_driver( LPCSTR name )
 233 {
 234     HMODULE module;
 235     struct graphics_driver *driver;
 236
 237     RtlEnterCriticalSection( &driver_section );
 238
 239     /* display driver is a special case */
 240     if (!strcasecmp( name, "display" ))
 241     {
 242         driver = load_display_driver();
 243         RtlLeaveCriticalSection( &driver_section );
 244         return &driver->funcs;
 245     }
 246
 247     if ((module = GetModuleHandleA( name )))
 248     {
 249         for (driver = first_driver; driver; driver = driver->next)
 250         {
 251             if (driver->module == module)
 252             {
 253                 driver->count++;
 254                 RtlLeaveCriticalSection( &driver_section );
 255                 return &driver->funcs;
 256             }
 257         }
 258     }
 259
 260     if (!(module = LoadLibraryA( name )))
 261     {
 262         if (!win16_driver) win16_driver = WIN16DRV_Init();
 263         RtlLeaveCriticalSection( &driver_section );
 264         return win16_driver;
 265     }
 266
 267     if (!(driver = create_driver( module )))
 268     {
 269         FreeLibrary( module );
 270         RtlLeaveCriticalSection( &driver_section );
 271         return NULL;
 272     }
 273
 274     TRACE( "loaded driver %p for %s\n", driver, name );
 275     RtlLeaveCriticalSection( &driver_section );
 276     return &driver->funcs;
 277 }
 278
 279
 280 /**********************************************************************
 281  *           DRIVER_get_driver
 282  *
 283  * Get a new copy of an existing driver.
 284  */
 285 const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs )
 286 {
 287     struct graphics_driver *driver;
 288
 289     RtlEnterCriticalSection( &driver_section );
 290     if (funcs != win16_driver)
 291     {
 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     }
 297     RtlLeaveCriticalSection( &driver_section );
 298     return funcs;
 299 }
 300
 301
 302 /**********************************************************************
 303  *           DRIVER_release_driver
 304  *
 305  * Release a driver by decrementing ref count and freeing it if needed.
 306  */
 307 void DRIVER_release_driver( const DC_FUNCTIONS *funcs )
 308 {
 309     struct graphics_driver *driver;
 310
 311     RtlEnterCriticalSection( &driver_section );
 312
 313     if (funcs == win16_driver) goto done;
 314
 315     for (driver = first_driver; driver; driver = driver->next)
 316         if (&driver->funcs == funcs) break;
 317
 318     if (!driver) goto done;
 319     if (--driver->count) goto done;
 320
 321     /* removed last reference, free it */
 322     if (driver->next) driver->next->prev = driver->prev;
 323     if (driver->prev) driver->prev->next = driver->next;
 324     else first_driver = driver->next;
 325     if (driver == display_driver) display_driver = NULL;
 326
 327     FreeLibrary( driver->module );
 328     HeapFree( GetProcessHeap(), 0, driver );
 329  done:
 330     RtlLeaveCriticalSection( &driver_section );
 331 }
 332
 333
 334 /*****************************************************************************
 335  *      DRIVER_GetDriverName
 336  *
 337  */
 338 BOOL DRIVER_GetDriverName( LPCSTR device, LPSTR driver, DWORD size )
 339 {
 340     char *p;
 341     size = GetProfileStringA("devices", device, "", driver, size);
 342     if(!size) {
 343         WARN("Unable to find '%s' in [devices] section of win.ini\n", device);
 344         return FALSE;
 345     }
 346     p = strchr(driver, ',');
 347     if(!p)
 348     {
 349         WARN("'%s' entry in [devices] section of win.ini is malformed.\n", device);
 350         return FALSE;
 351     }
 352     *p = '\0';
 353     TRACE("Found '%s' for '%s'\n", driver, device);
 354     return TRUE;
 355 }
 356
 357 /*****************************************************************************
 358  *      @ [GDI32.100]
 359  *
 360  * This should thunk to 16-bit and simply call the proc with the given args.
 361  */
 362 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 363                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 364 {
 365     FIXME("(%p, %04x, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 366     return -1;
 367 }
 368
 369 /*****************************************************************************
 370  *      @ [GDI32.101]
 371  *
 372  * This should load the correct driver for lpszDevice and calls this driver's
 373  * ExtDeviceModePropSheet proc.
 374  *
 375  * Note: The driver calls a callback routine for each property sheet page; these
 376  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 377  * The layout of this structure is:
 378  *
 379  * struct
 380  * {
 381  *   DWORD  nPages;
 382  *   DWORD  unknown;
 383  *   HPROPSHEETPAGE  pages[10];
 384  * };
 385  */
 386 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 387                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 388 {
 389     FIXME("(%04x, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 390     return -1;
 391 }
 392
 393 /*****************************************************************************
 394  *      @ [GDI32.102]
 395  *
 396  * This should load the correct driver for lpszDevice and calls this driver's
 397  * ExtDeviceMode proc.
 398  */
 399 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 400                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 401                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 402                                     LPSTR lpszProfile, DWORD fwMode )
 403 {
 404     char buf[300];
 405     HDC hdc;
 406     DC *dc;
 407     INT ret = -1;
 408     INT (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
 409
 410     TRACE("(%04x, %p, %s, %s, %p, %s, %ld)\n",
 411           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 412
 413     if(!DRIVER_GetDriverName( lpszDevice, buf, sizeof(buf) )) return -1;
 414
 415     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 416
 417     if ((dc = DC_GetDCPtr( hdc )))
 418     {
 419         pExtDeviceMode = dc->funcs->pExtDeviceMode;
 420         GDI_ReleaseObj( hdc );
 421         if (pExtDeviceMode)
 422             ret = pExtDeviceMode(buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 423                                             lpdmInput, lpszProfile, fwMode);
 424     }
 425     DeleteDC( hdc );
 426     return ret;
 427 }
 428
 429 /****************************************************************************
 430  *      @ [GDI32.103]
 431  *
 432  * This should load the correct driver for lpszDevice and calls this driver's
 433  * AdvancedSetupDialog proc.
 434  */
 435 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 436                                           LPDEVMODEA devin, LPDEVMODEA devout )
 437 {
 438     TRACE("(%04x, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 439     return -1;
 440 }
 441
 442 /*****************************************************************************
 443  *      @ [GDI32.104]
 444  *
 445  * This should load the correct driver for lpszDevice and calls this driver's
 446  * DeviceCapabilities proc.
 447  */
 448 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
 449                                            WORD fwCapability, LPSTR lpszOutput,
 450                                            LPDEVMODEA lpdm )
 451 {
 452     char buf[300];
 453     HDC hdc;
 454     DC *dc;
 455     INT ret = -1;
 456
 457     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
 458
 459     if(!DRIVER_GetDriverName( lpszDevice, buf, sizeof(buf) )) return -1;
 460
 461     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 462
 463     if ((dc = DC_GetDCPtr( hdc )))
 464     {
 465         if (dc->funcs->pDeviceCapabilities)
 466             ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
 467                                                   fwCapability, lpszOutput, lpdm );
 468         GDI_ReleaseObj( hdc );
 469     }
 470     DeleteDC( hdc );
 471     return ret;
 472 }