dlls/gdi32/dc.c

   1 /*
   2  * GDI Device Context functions
   3  *
   4  * Copyright 1993 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <assert.h>
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "wingdi.h"
  30 #include "winreg.h"
  31 #include "winternl.h"
  32 #include "winerror.h"
  33 #include "gdi_private.h"
  34 #include "wine/unicode.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(dc);
  38
  39 static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
  40
  41 static BOOL DC_DeleteObject( HGDIOBJ handle );
  42
  43 static const struct gdi_obj_funcs dc_funcs =
  44 {
  45     NULL,             /* pSelectObject */
  46     NULL,             /* pGetObjectA */
  47     NULL,             /* pGetObjectW */
  48     NULL,             /* pUnrealizeObject */
  49     DC_DeleteObject   /* pDeleteObject */
  50 };
  51
  52
  53 static inline DC *get_dc_obj( HDC hdc )
  54 {
  55     DC *dc = GDI_GetObjPtr( hdc, 0 );
  56     if (!dc) return NULL;
  57
  58     switch (GetObjectType( hdc ))
  59     {
  60     case OBJ_DC:
  61     case OBJ_MEMDC:
  62     case OBJ_METADC:
  63     case OBJ_ENHMETADC:
  64         return dc;
  65     default:
  66         GDI_ReleaseObj( hdc );
  67         SetLastError( ERROR_INVALID_HANDLE );
  68         return NULL;
  69     }
  70 }
  71
  72
  73 /***********************************************************************
  74  *           alloc_dc_ptr
  75  */
  76 DC *alloc_dc_ptr( WORD magic )
  77 {
  78     DC *dc;
  79
  80     if (!(dc = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*dc) ))) return NULL;
  81
  82     dc->nulldrv.funcs       = &null_driver;
  83     dc->physDev             = &dc->nulldrv;
  84     dc->thread              = GetCurrentThreadId();
  85     dc->refcount            = 1;
  86     dc->wndExtX             = 1;
  87     dc->wndExtY             = 1;
  88     dc->vportExtX           = 1;
  89     dc->vportExtY           = 1;
  90     dc->miterLimit          = 10.0f; /* 10.0 is the default, from MSDN */
  91     dc->hPen                = GDI_inc_ref_count( GetStockObject( BLACK_PEN ));
  92     dc->hBrush              = GDI_inc_ref_count( GetStockObject( WHITE_BRUSH ));
  93     dc->hFont               = GDI_inc_ref_count( GetStockObject( SYSTEM_FONT ));
  94     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
  95     dc->font_code_page      = CP_ACP;
  96     dc->ROPmode             = R2_COPYPEN;
  97     dc->polyFillMode        = ALTERNATE;
  98     dc->stretchBltMode      = BLACKONWHITE;
  99     dc->relAbsMode          = ABSOLUTE;
 100     dc->backgroundMode      = OPAQUE;
 101     dc->backgroundColor     = RGB( 255, 255, 255 );
 102     dc->dcBrushColor        = RGB( 255, 255, 255 );
 103     dc->dcPenColor          = RGB( 0, 0, 0 );
 104     dc->textColor           = RGB( 0, 0, 0 );
 105     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
 106     dc->MapMode             = MM_TEXT;
 107     dc->GraphicsMode        = GM_COMPATIBLE;
 108     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 109     dc->xformWorld2Wnd.eM11 = 1.0f;
 110     dc->xformWorld2Wnd.eM12 = 0.0f;
 111     dc->xformWorld2Wnd.eM21 = 0.0f;
 112     dc->xformWorld2Wnd.eM22 = 1.0f;
 113     dc->xformWorld2Wnd.eDx  = 0.0f;
 114     dc->xformWorld2Wnd.eDy  = 0.0f;
 115     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 116     dc->xformVport2World    = dc->xformWorld2Wnd;
 117     dc->vport2WorldValid    = TRUE;
 118
 119     reset_bounds( &dc->bounds );
 120
 121     if (!(dc->hSelf = alloc_gdi_handle( &dc->header, magic, &dc_funcs )))
 122     {
 123         HeapFree( GetProcessHeap(), 0, dc );
 124         return NULL;
 125     }
 126     dc->nulldrv.hdc = dc->hSelf;
 127
 128     if (font_driver && !font_driver->pCreateDC( &dc->physDev, NULL, NULL, NULL, NULL ))
 129     {
 130         free_dc_ptr( dc );
 131         return NULL;
 132     }
 133     return dc;
 134 }
 135
 136
 137
 138 /***********************************************************************
 139  *           free_dc_state
 140  */
 141 static void free_dc_state( DC *dc )
 142 {
 143     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 144     if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 145     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 146     if (dc->region) DeleteObject( dc->region );
 147     if (dc->path) free_gdi_path( dc->path );
 148     HeapFree( GetProcessHeap(), 0, dc );
 149 }
 150
 151
 152 /***********************************************************************
 153  *           free_dc_ptr
 154  */
 155 void free_dc_ptr( DC *dc )
 156 {
 157     assert( dc->refcount == 1 );
 158
 159     while (dc->physDev != &dc->nulldrv)
 160     {
 161         PHYSDEV physdev = dc->physDev;
 162         dc->physDev = physdev->next;
 163         physdev->funcs->pDeleteDC( physdev );
 164     }
 165     free_gdi_handle( dc->hSelf );
 166     free_dc_state( dc );
 167 }
 168
 169
 170 /***********************************************************************
 171  *           get_dc_ptr
 172  *
 173  * Retrieve a DC pointer but release the GDI lock.
 174  */
 175 DC *get_dc_ptr( HDC hdc )
 176 {
 177     DC *dc = get_dc_obj( hdc );
 178     if (!dc) return NULL;
 179
 180     if (!InterlockedCompareExchange( &dc->refcount, 1, 0 ))
 181     {
 182         dc->thread = GetCurrentThreadId();
 183     }
 184     else if (dc->thread != GetCurrentThreadId())
 185     {
 186         WARN( "dc %p belongs to thread %04x\n", hdc, dc->thread );
 187         GDI_ReleaseObj( hdc );
 188         return NULL;
 189     }
 190     else InterlockedIncrement( &dc->refcount );
 191
 192     GDI_ReleaseObj( hdc );
 193     return dc;
 194 }
 195
 196
 197 /***********************************************************************
 198  *           release_dc_ptr
 199  */
 200 void release_dc_ptr( DC *dc )
 201 {
 202     LONG ref;
 203
 204     dc->thread = 0;
 205     ref = InterlockedDecrement( &dc->refcount );
 206     assert( ref >= 0 );
 207     if (ref) dc->thread = GetCurrentThreadId();  /* we still own it */
 208 }
 209
 210
 211 /***********************************************************************
 212  *           update_dc
 213  *
 214  * Make sure the DC vis region is up to date.
 215  * This function may call up to USER so the GDI lock should _not_
 216  * be held when calling it.
 217  */
 218 void update_dc( DC *dc )
 219 {
 220     if (InterlockedExchange( &dc->dirty, 0 ) && dc->hookProc)
 221         dc->hookProc( dc->hSelf, DCHC_INVALIDVISRGN, dc->dwHookData, 0 );
 222 }
 223
 224
 225 /***********************************************************************
 226  *           DC_DeleteObject
 227  */
 228 static BOOL DC_DeleteObject( HGDIOBJ handle )
 229 {
 230     return DeleteDC( handle );
 231 }
 232
 233
 234 /***********************************************************************
 235  *           DC_InitDC
 236  *
 237  * Setup device-specific DC values for a newly created DC.
 238  */
 239 void DC_InitDC( DC* dc )
 240 {
 241     PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRealizeDefaultPalette );
 242     physdev->funcs->pRealizeDefaultPalette( physdev );
 243     SetTextColor( dc->hSelf, dc->textColor );
 244     SetBkColor( dc->hSelf, dc->backgroundColor );
 245     SelectObject( dc->hSelf, dc->hPen );
 246     SelectObject( dc->hSelf, dc->hBrush );
 247     SelectObject( dc->hSelf, dc->hFont );
 248     update_dc_clipping( dc );
 249     SetVirtualResolution( dc->hSelf, 0, 0, 0, 0 );
 250     physdev = GET_DC_PHYSDEV( dc, pSetBoundsRect );
 251     physdev->funcs->pSetBoundsRect( physdev, &dc->bounds, dc->bounds_enabled ? DCB_ENABLE : DCB_DISABLE );
 252 }
 253
 254
 255 /***********************************************************************
 256  *           DC_InvertXform
 257  *
 258  * Computes the inverse of the transformation xformSrc and stores it to
 259  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 260  * is singular.
 261  */
 262 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 263 {
 264     double determinant;
 265
 266     determinant = xformSrc->eM11*xformSrc->eM22 -
 267         xformSrc->eM12*xformSrc->eM21;
 268     if (determinant > -1e-12 && determinant < 1e-12)
 269         return FALSE;
 270
 271     xformDest->eM11 =  xformSrc->eM22 / determinant;
 272     xformDest->eM12 = -xformSrc->eM12 / determinant;
 273     xformDest->eM21 = -xformSrc->eM21 / determinant;
 274     xformDest->eM22 =  xformSrc->eM11 / determinant;
 275     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 276                        xformSrc->eDy * xformDest->eM21;
 277     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 278                        xformSrc->eDy * xformDest->eM22;
 279
 280     return TRUE;
 281 }
 282
 283 /* Construct a transformation to do the window-to-viewport conversion */
 284 static void construct_window_to_viewport(DC *dc, XFORM *xform)
 285 {
 286     double scaleX, scaleY;
 287     scaleX = (double)dc->vportExtX / (double)dc->wndExtX;
 288     scaleY = (double)dc->vportExtY / (double)dc->wndExtY;
 289
 290     if (dc->layout & LAYOUT_RTL) scaleX = -scaleX;
 291     xform->eM11 = scaleX;
 292     xform->eM12 = 0.0;
 293     xform->eM21 = 0.0;
 294     xform->eM22 = scaleY;
 295     xform->eDx  = (double)dc->vportOrgX - scaleX * (double)dc->wndOrgX;
 296     xform->eDy  = (double)dc->vportOrgY - scaleY * (double)dc->wndOrgY;
 297     if (dc->layout & LAYOUT_RTL) xform->eDx = dc->vis_rect.right - dc->vis_rect.left - 1 - xform->eDx;
 298 }
 299
 300 /***********************************************************************
 301  *           DC_UpdateXforms
 302  *
 303  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 304  * fields of the specified DC by creating a transformation that
 305  * represents the current mapping mode and combining it with the DC's
 306  * world transform. This function should be called whenever the
 307  * parameters associated with the mapping mode (window and viewport
 308  * extents and origins) or the world transform change.
 309  */
 310 void DC_UpdateXforms( DC *dc )
 311 {
 312     XFORM xformWnd2Vport, oldworld2vport;
 313
 314     construct_window_to_viewport(dc, &xformWnd2Vport);
 315
 316     oldworld2vport = dc->xformWorld2Vport;
 317     /* Combine with the world transformation */
 318     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 319         &xformWnd2Vport );
 320
 321     /* Create inverse of world-to-viewport transformation */
 322     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 323         &dc->xformVport2World );
 324
 325     /* Reselect the font and pen back into the dc so that the size
 326        gets updated. */
 327     if (memcmp(&oldworld2vport, &dc->xformWorld2Vport, sizeof(oldworld2vport)) &&
 328         !GdiIsMetaFileDC(dc->hSelf))
 329     {
 330         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
 331         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_PEN));
 332     }
 333 }
 334
 335
 336 /***********************************************************************
 337  *           nulldrv_SaveDC
 338  */
 339 INT nulldrv_SaveDC( PHYSDEV dev )
 340 {
 341     DC *newdc, *dc = get_nulldrv_dc( dev );
 342
 343     if (!(newdc = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*newdc )))) return 0;
 344     newdc->layout           = dc->layout;
 345     newdc->hPen             = dc->hPen;
 346     newdc->hBrush           = dc->hBrush;
 347     newdc->hFont            = dc->hFont;
 348     newdc->hBitmap          = dc->hBitmap;
 349     newdc->hDevice          = dc->hDevice;
 350     newdc->hPalette         = dc->hPalette;
 351     newdc->ROPmode          = dc->ROPmode;
 352     newdc->polyFillMode     = dc->polyFillMode;
 353     newdc->stretchBltMode   = dc->stretchBltMode;
 354     newdc->relAbsMode       = dc->relAbsMode;
 355     newdc->backgroundMode   = dc->backgroundMode;
 356     newdc->backgroundColor  = dc->backgroundColor;
 357     newdc->textColor        = dc->textColor;
 358     newdc->dcBrushColor     = dc->dcBrushColor;
 359     newdc->dcPenColor       = dc->dcPenColor;
 360     newdc->brushOrgX        = dc->brushOrgX;
 361     newdc->brushOrgY        = dc->brushOrgY;
 362     newdc->mapperFlags      = dc->mapperFlags;
 363     newdc->textAlign        = dc->textAlign;
 364     newdc->charExtra        = dc->charExtra;
 365     newdc->breakExtra       = dc->breakExtra;
 366     newdc->breakRem         = dc->breakRem;
 367     newdc->MapMode          = dc->MapMode;
 368     newdc->GraphicsMode     = dc->GraphicsMode;
 369     newdc->CursPosX         = dc->CursPosX;
 370     newdc->CursPosY         = dc->CursPosY;
 371     newdc->ArcDirection     = dc->ArcDirection;
 372     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 373     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 374     newdc->xformVport2World = dc->xformVport2World;
 375     newdc->vport2WorldValid = dc->vport2WorldValid;
 376     newdc->wndOrgX          = dc->wndOrgX;
 377     newdc->wndOrgY          = dc->wndOrgY;
 378     newdc->wndExtX          = dc->wndExtX;
 379     newdc->wndExtY          = dc->wndExtY;
 380     newdc->vportOrgX        = dc->vportOrgX;
 381     newdc->vportOrgY        = dc->vportOrgY;
 382     newdc->vportExtX        = dc->vportExtX;
 383     newdc->vportExtY        = dc->vportExtY;
 384     newdc->virtual_res      = dc->virtual_res;
 385     newdc->virtual_size     = dc->virtual_size;
 386     newdc->gdiFont          = dc->gdiFont;
 387
 388     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 389
 390     if (dc->hClipRgn)
 391     {
 392         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 393         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 394     }
 395     if (dc->hMetaRgn)
 396     {
 397         newdc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 398         CombineRgn( newdc->hMetaRgn, dc->hMetaRgn, 0, RGN_COPY );
 399     }
 400
 401     if (!PATH_SavePath( newdc, dc ))
 402     {
 403         release_dc_ptr( dc );
 404         free_dc_state( newdc );
 405         return 0;
 406     }
 407
 408     newdc->saved_dc = dc->saved_dc;
 409     dc->saved_dc = newdc;
 410     return ++dc->saveLevel;
 411 }
 412
 413
 414 /***********************************************************************
 415  *           restore_dc_state
 416  */
 417 BOOL nulldrv_RestoreDC( PHYSDEV dev, INT level )
 418 {
 419     DC *dcs, *first_dcs, *dc = get_nulldrv_dc( dev );
 420     INT save_level;
 421
 422     /* find the state level to restore */
 423
 424     if (abs(level) > dc->saveLevel || level == 0) return FALSE;
 425     if (level < 0) level = dc->saveLevel + level + 1;
 426     first_dcs = dc->saved_dc;
 427     for (dcs = first_dcs, save_level = dc->saveLevel; save_level > level; save_level--)
 428         dcs = dcs->saved_dc;
 429
 430     /* restore the state */
 431
 432     if (!PATH_RestorePath( dc, dcs )) return FALSE;
 433
 434     dc->layout           = dcs->layout;
 435     dc->hDevice          = dcs->hDevice;
 436     dc->ROPmode          = dcs->ROPmode;
 437     dc->polyFillMode     = dcs->polyFillMode;
 438     dc->stretchBltMode   = dcs->stretchBltMode;
 439     dc->relAbsMode       = dcs->relAbsMode;
 440     dc->backgroundMode   = dcs->backgroundMode;
 441     dc->backgroundColor  = dcs->backgroundColor;
 442     dc->textColor        = dcs->textColor;
 443     dc->dcBrushColor     = dcs->dcBrushColor;
 444     dc->dcPenColor       = dcs->dcPenColor;
 445     dc->brushOrgX        = dcs->brushOrgX;
 446     dc->brushOrgY        = dcs->brushOrgY;
 447     dc->mapperFlags      = dcs->mapperFlags;
 448     dc->textAlign        = dcs->textAlign;
 449     dc->charExtra        = dcs->charExtra;
 450     dc->breakExtra       = dcs->breakExtra;
 451     dc->breakRem         = dcs->breakRem;
 452     dc->MapMode          = dcs->MapMode;
 453     dc->GraphicsMode     = dcs->GraphicsMode;
 454     dc->CursPosX         = dcs->CursPosX;
 455     dc->CursPosY         = dcs->CursPosY;
 456     dc->ArcDirection     = dcs->ArcDirection;
 457     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 458     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 459     dc->xformVport2World = dcs->xformVport2World;
 460     dc->vport2WorldValid = dcs->vport2WorldValid;
 461     dc->wndOrgX          = dcs->wndOrgX;
 462     dc->wndOrgY          = dcs->wndOrgY;
 463     dc->wndExtX          = dcs->wndExtX;
 464     dc->wndExtY          = dcs->wndExtY;
 465     dc->vportOrgX        = dcs->vportOrgX;
 466     dc->vportOrgY        = dcs->vportOrgY;
 467     dc->vportExtX        = dcs->vportExtX;
 468     dc->vportExtY        = dcs->vportExtY;
 469     dc->virtual_res      = dcs->virtual_res;
 470     dc->virtual_size     = dcs->virtual_size;
 471
 472     if (dcs->hClipRgn)
 473     {
 474         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 475         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 476     }
 477     else
 478     {
 479         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 480         dc->hClipRgn = 0;
 481     }
 482     if (dcs->hMetaRgn)
 483     {
 484         if (!dc->hMetaRgn) dc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 485         CombineRgn( dc->hMetaRgn, dcs->hMetaRgn, 0, RGN_COPY );
 486     }
 487     else
 488     {
 489         if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 490         dc->hMetaRgn = 0;
 491     }
 492     DC_UpdateXforms( dc );
 493     update_dc_clipping( dc );
 494
 495     SelectObject( dev->hdc, dcs->hBitmap );
 496     SelectObject( dev->hdc, dcs->hBrush );
 497     SelectObject( dev->hdc, dcs->hFont );
 498     SelectObject( dev->hdc, dcs->hPen );
 499     SetBkColor( dev->hdc, dcs->backgroundColor);
 500     SetTextColor( dev->hdc, dcs->textColor);
 501     GDISelectPalette( dev->hdc, dcs->hPalette, FALSE );
 502
 503     dc->saved_dc  = dcs->saved_dc;
 504     dcs->saved_dc = 0;
 505     dc->saveLevel = save_level - 1;
 506
 507     /* now destroy all the saved DCs */
 508
 509     while (first_dcs)
 510     {
 511         DC *next = first_dcs->saved_dc;
 512         free_dc_state( first_dcs );
 513         first_dcs = next;
 514     }
 515     return TRUE;
 516 }
 517
 518
 519 /***********************************************************************
 520  *           SaveDC    (GDI32.@)
 521  */
 522 INT WINAPI SaveDC( HDC hdc )
 523 {
 524     DC * dc;
 525     INT ret = 0;
 526
 527     if ((dc = get_dc_ptr( hdc )))
 528     {
 529         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSaveDC );
 530         ret = physdev->funcs->pSaveDC( physdev );
 531         release_dc_ptr( dc );
 532     }
 533     return ret;
 534 }
 535
 536
 537 /***********************************************************************
 538  *           RestoreDC    (GDI32.@)
 539  */
 540 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 541 {
 542     PHYSDEV physdev;
 543     DC *dc;
 544     BOOL success = FALSE;
 545
 546     TRACE("%p %d\n", hdc, level );
 547     if ((dc = get_dc_ptr( hdc )))
 548     {
 549         update_dc( dc );
 550         physdev = GET_DC_PHYSDEV( dc, pRestoreDC );
 551         success = physdev->funcs->pRestoreDC( physdev, level );
 552         release_dc_ptr( dc );
 553     }
 554     return success;
 555 }
 556
 557
 558 /***********************************************************************
 559  *           CreateDCW    (GDI32.@)
 560  */
 561 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 562                       const DEVMODEW *initData )
 563 {
 564     HDC hdc;
 565     DC * dc;
 566     const struct gdi_dc_funcs *funcs;
 567     WCHAR buf[300];
 568
 569     GDI_CheckNotLock();
 570
 571     if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
 572     {
 573         if (!driver)
 574         {
 575             ERR( "no device found for %s\n", debugstr_w(device) );
 576             return 0;
 577         }
 578         strcpyW(buf, driver);
 579     }
 580
 581     if (!(funcs = DRIVER_load_driver( buf )))
 582     {
 583         ERR( "no driver found for %s\n", debugstr_w(buf) );
 584         return 0;
 585     }
 586     if (!(dc = alloc_dc_ptr( OBJ_DC ))) return 0;
 587     hdc = dc->hSelf;
 588
 589     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 590
 591     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 592           debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
 593
 594     if (funcs->pCreateDC)
 595     {
 596         if (!funcs->pCreateDC( &dc->physDev, buf, device, output, initData ))
 597         {
 598             WARN("creation aborted by device\n" );
 599             free_dc_ptr( dc );
 600             return 0;
 601         }
 602     }
 603
 604     dc->vis_rect.left   = 0;
 605     dc->vis_rect.top    = 0;
 606     dc->vis_rect.right  = GetDeviceCaps( hdc, DESKTOPHORZRES );
 607     dc->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
 608
 609     DC_InitDC( dc );
 610     release_dc_ptr( dc );
 611     return hdc;
 612 }
 613
 614
 615 /***********************************************************************
 616  *           CreateDCA    (GDI32.@)
 617  */
 618 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 619                       const DEVMODEA *initData )
 620 {
 621     UNICODE_STRING driverW, deviceW, outputW;
 622     DEVMODEW *initDataW;
 623     HDC ret;
 624
 625     if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
 626     else driverW.Buffer = NULL;
 627
 628     if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
 629     else deviceW.Buffer = NULL;
 630
 631     if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
 632     else outputW.Buffer = NULL;
 633
 634     initDataW = NULL;
 635     if (initData)
 636     {
 637         /* don't convert initData for DISPLAY driver, it's not used */
 638         if (!driverW.Buffer || strcmpiW( driverW.Buffer, displayW ))
 639             initDataW = GdiConvertToDevmodeW(initData);
 640     }
 641
 642     ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
 643
 644     RtlFreeUnicodeString(&driverW);
 645     RtlFreeUnicodeString(&deviceW);
 646     RtlFreeUnicodeString(&outputW);
 647     HeapFree(GetProcessHeap(), 0, initDataW);
 648     return ret;
 649 }
 650
 651
 652 /***********************************************************************
 653  *           CreateICA    (GDI32.@)
 654  */
 655 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 656                           const DEVMODEA* initData )
 657 {
 658       /* Nothing special yet for ICs */
 659     return CreateDCA( driver, device, output, initData );
 660 }
 661
 662
 663 /***********************************************************************
 664  *           CreateICW    (GDI32.@)
 665  */
 666 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 667                           const DEVMODEW* initData )
 668 {
 669       /* Nothing special yet for ICs */
 670     return CreateDCW( driver, device, output, initData );
 671 }
 672
 673
 674 /***********************************************************************
 675  *           CreateCompatibleDC   (GDI32.@)
 676  */
 677 HDC WINAPI CreateCompatibleDC( HDC hdc )
 678 {
 679     DC *dc, *origDC;
 680     HDC ret;
 681     const struct gdi_dc_funcs *funcs = &null_driver;
 682     PHYSDEV physDev = NULL;
 683
 684     GDI_CheckNotLock();
 685
 686     if (hdc)
 687     {
 688         if (!(origDC = get_dc_ptr( hdc ))) return 0;
 689         physDev = GET_DC_PHYSDEV( origDC, pCreateCompatibleDC );
 690         funcs = physDev->funcs;
 691         release_dc_ptr( origDC );
 692     }
 693
 694     if (!(dc = alloc_dc_ptr( OBJ_MEMDC ))) return 0;
 695
 696     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 697
 698     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 699     dc->vis_rect.left   = 0;
 700     dc->vis_rect.top    = 0;
 701     dc->vis_rect.right  = 1;
 702     dc->vis_rect.bottom = 1;
 703     dc->device_rect = dc->vis_rect;
 704
 705     ret = dc->hSelf;
 706
 707     if (!funcs->pCreateCompatibleDC( physDev, &dc->physDev ))
 708     {
 709         WARN("creation aborted by device\n");
 710         free_dc_ptr( dc );
 711         return 0;
 712     }
 713
 714     if (!dib_driver.pCreateDC( &dc->physDev, NULL, NULL, NULL, NULL ))
 715     {
 716         free_dc_ptr( dc );
 717         return 0;
 718     }
 719     physDev = GET_DC_PHYSDEV( dc, pSelectBitmap );
 720     physDev->funcs->pSelectBitmap( physDev, dc->hBitmap );
 721
 722     DC_InitDC( dc );
 723     release_dc_ptr( dc );
 724     return ret;
 725 }
 726
 727
 728 /***********************************************************************
 729  *           DeleteDC    (GDI32.@)
 730  */
 731 BOOL WINAPI DeleteDC( HDC hdc )
 732 {
 733     DC * dc;
 734
 735     TRACE("%p\n", hdc );
 736
 737     GDI_CheckNotLock();
 738
 739     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
 740     if (dc->refcount != 1)
 741     {
 742         FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
 743         release_dc_ptr( dc );
 744         return FALSE;
 745     }
 746
 747     /* Call hook procedure to check whether is it OK to delete this DC */
 748     if (dc->hookProc && !dc->hookProc( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ))
 749     {
 750         release_dc_ptr( dc );
 751         return TRUE;
 752     }
 753
 754     while (dc->saveLevel)
 755     {
 756         DC *dcs = dc->saved_dc;
 757         dc->saved_dc = dcs->saved_dc;
 758         dc->saveLevel--;
 759         free_dc_state( dcs );
 760     }
 761
 762     AbortPath( hdc );
 763     SelectObject( hdc, GetStockObject(BLACK_PEN) );
 764     SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 765     SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 766     SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 767
 768     free_dc_ptr( dc );
 769     return TRUE;
 770 }
 771
 772
 773 /***********************************************************************
 774  *           ResetDCW    (GDI32.@)
 775  */
 776 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 777 {
 778     DC *dc;
 779     HDC ret = 0;
 780
 781     if ((dc = get_dc_ptr( hdc )))
 782     {
 783         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pResetDC );
 784         ret = physdev->funcs->pResetDC( physdev, devmode );
 785         if (ret)  /* reset the visible region */
 786         {
 787             dc->dirty = 0;
 788             dc->vis_rect.left   = 0;
 789             dc->vis_rect.top    = 0;
 790             dc->vis_rect.right  = GetDeviceCaps( hdc, DESKTOPHORZRES );
 791             dc->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
 792             if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 793             dc->hVisRgn = 0;
 794             update_dc_clipping( dc );
 795         }
 796         release_dc_ptr( dc );
 797     }
 798     return ret;
 799 }
 800
 801
 802 /***********************************************************************
 803  *           ResetDCA    (GDI32.@)
 804  */
 805 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 806 {
 807     DEVMODEW *devmodeW;
 808     HDC ret;
 809
 810     if (devmode) devmodeW = GdiConvertToDevmodeW(devmode);
 811     else devmodeW = NULL;
 812
 813     ret = ResetDCW(hdc, devmodeW);
 814
 815     HeapFree(GetProcessHeap(), 0, devmodeW);
 816     return ret;
 817 }
 818
 819
 820 /***********************************************************************
 821  *           GetDeviceCaps    (GDI32.@)
 822  */
 823 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 824 {
 825     DC *dc;
 826     INT ret = 0;
 827
 828     if ((dc = get_dc_ptr( hdc )))
 829     {
 830         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetDeviceCaps );
 831         ret = physdev->funcs->pGetDeviceCaps( physdev, cap );
 832         release_dc_ptr( dc );
 833     }
 834     return ret;
 835 }
 836
 837
 838 /***********************************************************************
 839  *              GetBkColor (GDI32.@)
 840  */
 841 COLORREF WINAPI GetBkColor( HDC hdc )
 842 {
 843     COLORREF ret = 0;
 844     DC * dc = get_dc_ptr( hdc );
 845     if (dc)
 846     {
 847         ret = dc->backgroundColor;
 848         release_dc_ptr( dc );
 849     }
 850     return ret;
 851 }
 852
 853
 854 /***********************************************************************
 855  *           SetBkColor    (GDI32.@)
 856  */
 857 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 858 {
 859     COLORREF ret = CLR_INVALID;
 860     DC * dc = get_dc_ptr( hdc );
 861
 862     TRACE("hdc=%p color=0x%08x\n", hdc, color);
 863
 864     if (dc)
 865     {
 866         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetBkColor );
 867         ret = dc->backgroundColor;
 868         dc->backgroundColor = physdev->funcs->pSetBkColor( physdev, color );
 869         release_dc_ptr( dc );
 870     }
 871     return ret;
 872 }
 873
 874
 875 /***********************************************************************
 876  *              GetTextColor (GDI32.@)
 877  */
 878 COLORREF WINAPI GetTextColor( HDC hdc )
 879 {
 880     COLORREF ret = 0;
 881     DC * dc = get_dc_ptr( hdc );
 882     if (dc)
 883     {
 884         ret = dc->textColor;
 885         release_dc_ptr( dc );
 886     }
 887     return ret;
 888 }
 889
 890
 891 /***********************************************************************
 892  *           SetTextColor    (GDI32.@)
 893  */
 894 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 895 {
 896     COLORREF ret = CLR_INVALID;
 897     DC * dc = get_dc_ptr( hdc );
 898
 899     TRACE(" hdc=%p color=0x%08x\n", hdc, color);
 900
 901     if (dc)
 902     {
 903         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetTextColor );
 904         ret = dc->textColor;
 905         dc->textColor = physdev->funcs->pSetTextColor( physdev, color );
 906         release_dc_ptr( dc );
 907     }
 908     return ret;
 909 }
 910
 911
 912 /***********************************************************************
 913  *              GetTextAlign (GDI32.@)
 914  */
 915 UINT WINAPI GetTextAlign( HDC hdc )
 916 {
 917     UINT ret = 0;
 918     DC * dc = get_dc_ptr( hdc );
 919     if (dc)
 920     {
 921         ret = dc->textAlign;
 922         release_dc_ptr( dc );
 923     }
 924     return ret;
 925 }
 926
 927
 928 /***********************************************************************
 929  *           SetTextAlign    (GDI32.@)
 930  */
 931 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 932 {
 933     UINT ret = GDI_ERROR;
 934     DC *dc = get_dc_ptr( hdc );
 935
 936     TRACE("hdc=%p align=%d\n", hdc, align);
 937
 938     if (dc)
 939     {
 940         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetTextAlign );
 941         align = physdev->funcs->pSetTextAlign( physdev, align );
 942         if (align != GDI_ERROR)
 943         {
 944             ret = dc->textAlign;
 945             dc->textAlign = align;
 946         }
 947         release_dc_ptr( dc );
 948     }
 949     return ret;
 950 }
 951
 952 /***********************************************************************
 953  *           GetDCOrgEx  (GDI32.@)
 954  */
 955 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 956 {
 957     DC * dc;
 958
 959     if (!lpp) return FALSE;
 960     if (!(dc = get_dc_ptr( hDC ))) return FALSE;
 961     lpp->x = dc->vis_rect.left;
 962     lpp->y = dc->vis_rect.top;
 963     release_dc_ptr( dc );
 964     return TRUE;
 965 }
 966
 967
 968 /***********************************************************************
 969  *              GetGraphicsMode (GDI32.@)
 970  */
 971 INT WINAPI GetGraphicsMode( HDC hdc )
 972 {
 973     INT ret = 0;
 974     DC * dc = get_dc_ptr( hdc );
 975     if (dc)
 976     {
 977         ret = dc->GraphicsMode;
 978         release_dc_ptr( dc );
 979     }
 980     return ret;
 981 }
 982
 983
 984 /***********************************************************************
 985  *           SetGraphicsMode    (GDI32.@)
 986  */
 987 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 988 {
 989     INT ret = 0;
 990     DC *dc = get_dc_ptr( hdc );
 991
 992     /* One would think that setting the graphics mode to GM_COMPATIBLE
 993      * would also reset the world transformation matrix to the unity
 994      * matrix. However, in Windows, this is not the case. This doesn't
 995      * make a lot of sense to me, but that's the way it is.
 996      */
 997     if (!dc) return 0;
 998     if ((mode > 0) && (mode <= GM_LAST))
 999     {
1000         ret = dc->GraphicsMode;
1001         dc->GraphicsMode = mode;
1002     }
1003     release_dc_ptr( dc );
1004     return ret;
1005 }
1006
1007
1008 /***********************************************************************
1009  *              GetArcDirection (GDI32.@)
1010  */
1011 INT WINAPI GetArcDirection( HDC hdc )
1012 {
1013     INT ret = 0;
1014     DC * dc = get_dc_ptr( hdc );
1015     if (dc)
1016     {
1017         ret = dc->ArcDirection;
1018         release_dc_ptr( dc );
1019     }
1020     return ret;
1021 }
1022
1023
1024 /***********************************************************************
1025  *           SetArcDirection    (GDI32.@)
1026  */
1027 INT WINAPI SetArcDirection( HDC hdc, INT dir )
1028 {
1029     DC * dc;
1030     INT ret = 0;
1031
1032     if (dir != AD_COUNTERCLOCKWISE && dir != AD_CLOCKWISE)
1033     {
1034         SetLastError(ERROR_INVALID_PARAMETER);
1035         return 0;
1036     }
1037
1038     if ((dc = get_dc_ptr( hdc )))
1039     {
1040         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetArcDirection );
1041         dir = physdev->funcs->pSetArcDirection( physdev, dir );
1042         if (dir)
1043         {
1044             ret = dc->ArcDirection;
1045             dc->ArcDirection = dir;
1046         }
1047         release_dc_ptr( dc );
1048     }
1049     return ret;
1050 }
1051
1052
1053 /***********************************************************************
1054  *           GetWorldTransform    (GDI32.@)
1055  */
1056 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1057 {
1058     DC * dc;
1059     if (!xform) return FALSE;
1060     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
1061     *xform = dc->xformWorld2Wnd;
1062     release_dc_ptr( dc );
1063     return TRUE;
1064 }
1065
1066
1067 /***********************************************************************
1068  *           GetTransform    (GDI32.@)
1069  *
1070  * Undocumented
1071  *
1072  * Returns one of the co-ordinate space transforms
1073  *
1074  * PARAMS
1075  *    hdc   [I] Device context.
1076  *    which [I] Which xform to return:
1077  *                  0x203 World -> Page transform (that set by SetWorldTransform).
1078  *                  0x304 Page -> Device transform (the mapping mode transform).
1079  *                  0x204 World -> Device transform (the combination of the above two).
1080  *                  0x402 Device -> World transform (the inversion of the above).
1081  *    xform [O] The xform.
1082  *
1083  */
1084 BOOL WINAPI GetTransform( HDC hdc, DWORD which, XFORM *xform )
1085 {
1086     BOOL ret = TRUE;
1087     DC *dc = get_dc_ptr( hdc );
1088     if (!dc) return FALSE;
1089
1090     switch(which)
1091     {
1092     case 0x203:
1093         *xform = dc->xformWorld2Wnd;
1094         break;
1095
1096     case 0x304:
1097         construct_window_to_viewport(dc, xform);
1098         break;
1099
1100     case 0x204:
1101         *xform = dc->xformWorld2Vport;
1102         break;
1103
1104     case 0x402:
1105         *xform = dc->xformVport2World;
1106         break;
1107
1108     default:
1109         FIXME("Unknown code %x\n", which);
1110         ret = FALSE;
1111     }
1112
1113     release_dc_ptr( dc );
1114     return ret;
1115 }
1116
1117
1118 /****************************************************************************
1119  * CombineTransform [GDI32.@]
1120  * Combines two transformation matrices.
1121  *
1122  * PARAMS
1123  *    xformResult [O] Stores the result of combining the two matrices
1124  *    xform1      [I] Specifies the first matrix to apply
1125  *    xform2      [I] Specifies the second matrix to apply
1126  *
1127  * REMARKS
1128  *    The same matrix can be passed in for more than one of the parameters.
1129  *
1130  * RETURNS
1131  *  Success: TRUE.
1132  *  Failure: FALSE. Use GetLastError() to determine the cause.
1133  */
1134 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1135     const XFORM *xform2 )
1136 {
1137     XFORM xformTemp;
1138
1139     /* Check for illegal parameters */
1140     if (!xformResult || !xform1 || !xform2)
1141         return FALSE;
1142
1143     /* Create the result in a temporary XFORM, since xformResult may be
1144      * equal to xform1 or xform2 */
1145     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1146                      xform1->eM12 * xform2->eM21;
1147     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1148                      xform1->eM12 * xform2->eM22;
1149     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1150                      xform1->eM22 * xform2->eM21;
1151     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1152                      xform1->eM22 * xform2->eM22;
1153     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1154                      xform1->eDy  * xform2->eM21 +
1155                      xform2->eDx;
1156     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1157                      xform1->eDy  * xform2->eM22 +
1158                      xform2->eDy;
1159
1160     /* Copy the result to xformResult */
1161     *xformResult = xformTemp;
1162
1163     return TRUE;
1164 }
1165
1166
1167 /***********************************************************************
1168  *           SetDCHook   (GDI32.@)
1169  *
1170  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1171  */
1172 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD_PTR dwHookData )
1173 {
1174     DC *dc = get_dc_ptr( hdc );
1175
1176     if (!dc) return FALSE;
1177
1178     dc->dwHookData = dwHookData;
1179     dc->hookProc = hookProc;
1180     release_dc_ptr( dc );
1181     return TRUE;
1182 }
1183
1184
1185 /***********************************************************************
1186  *           GetDCHook   (GDI32.@)
1187  *
1188  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1189  */
1190 DWORD_PTR WINAPI GetDCHook( HDC hdc, DCHOOKPROC *proc )
1191 {
1192     DC *dc = get_dc_ptr( hdc );
1193     DWORD_PTR ret;
1194
1195     if (!dc) return 0;
1196     if (proc) *proc = dc->hookProc;
1197     ret = dc->dwHookData;
1198     release_dc_ptr( dc );
1199     return ret;
1200 }
1201
1202
1203 /***********************************************************************
1204  *           SetHookFlags   (GDI32.@)
1205  *
1206  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1207  */
1208 WORD WINAPI SetHookFlags( HDC hdc, WORD flags )
1209 {
1210     DC *dc = get_dc_obj( hdc );  /* not get_dc_ptr, this needs to work from any thread */
1211     LONG ret = 0;
1212
1213     if (!dc) return 0;
1214
1215     /* "Undocumented Windows" info is slightly confusing. */
1216
1217     TRACE("hDC %p, flags %04x\n",hdc,flags);
1218
1219     if (flags & DCHF_INVALIDATEVISRGN)
1220         ret = InterlockedExchange( &dc->dirty, 1 );
1221     else if (flags & DCHF_VALIDATEVISRGN || !flags)
1222         ret = InterlockedExchange( &dc->dirty, 0 );
1223
1224     GDI_ReleaseObj( hdc );
1225     return ret;
1226 }
1227
1228 /***********************************************************************
1229  *           SetICMMode    (GDI32.@)
1230  */
1231 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1232 {
1233 /*FIXME:  Assume that ICM is always off, and cannot be turned on */
1234     if (iEnableICM == ICM_OFF) return ICM_OFF;
1235     if (iEnableICM == ICM_ON) return 0;
1236     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1237     return 0;
1238 }
1239
1240 /***********************************************************************
1241  *           GetDeviceGammaRamp    (GDI32.@)
1242  */
1243 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1244 {
1245     BOOL ret = FALSE;
1246     DC *dc = get_dc_ptr( hDC );
1247
1248     TRACE("%p, %p\n", hDC, ptr);
1249     if( dc )
1250     {
1251         if (GetObjectType( hDC ) != OBJ_MEMDC)
1252         {
1253             PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetDeviceGammaRamp );
1254             ret = physdev->funcs->pGetDeviceGammaRamp( physdev, ptr );
1255         }
1256         else SetLastError( ERROR_INVALID_PARAMETER );
1257         release_dc_ptr( dc );
1258     }
1259     return ret;
1260 }
1261
1262 /***********************************************************************
1263  *           SetDeviceGammaRamp    (GDI32.@)
1264  */
1265 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1266 {
1267     BOOL ret = FALSE;
1268     DC *dc = get_dc_ptr( hDC );
1269
1270     TRACE("%p, %p\n", hDC, ptr);
1271     if( dc )
1272     {
1273         if (GetObjectType( hDC ) != OBJ_MEMDC)
1274         {
1275             PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDeviceGammaRamp );
1276             ret = physdev->funcs->pSetDeviceGammaRamp( physdev, ptr );
1277         }
1278         else SetLastError( ERROR_INVALID_PARAMETER );
1279         release_dc_ptr( dc );
1280     }
1281     return ret;
1282 }
1283
1284 /***********************************************************************
1285  *           GetColorSpace    (GDI32.@)
1286  */
1287 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1288 {
1289 /*FIXME    Need to do whatever GetColorSpace actually does */
1290     return 0;
1291 }
1292
1293 /***********************************************************************
1294  *           CreateColorSpaceA    (GDI32.@)
1295  */
1296 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1297 {
1298   FIXME( "stub\n" );
1299   return 0;
1300 }
1301
1302 /***********************************************************************
1303  *           CreateColorSpaceW    (GDI32.@)
1304  */
1305 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1306 {
1307   FIXME( "stub\n" );
1308   return 0;
1309 }
1310
1311 /***********************************************************************
1312  *           DeleteColorSpace     (GDI32.@)
1313  */
1314 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1315 {
1316   FIXME( "stub\n" );
1317
1318   return TRUE;
1319 }
1320
1321 /***********************************************************************
1322  *           SetColorSpace     (GDI32.@)
1323  */
1324 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1325 {
1326   FIXME( "stub\n" );
1327
1328   return hColorSpace;
1329 }
1330
1331 /***********************************************************************
1332  *           GetBoundsRect    (GDI32.@)
1333  */
1334 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1335 {
1336     PHYSDEV physdev;
1337     RECT device_rect;
1338     UINT ret;
1339     DC *dc = get_dc_ptr( hdc );
1340
1341     if ( !dc ) return 0;
1342
1343     physdev = GET_DC_PHYSDEV( dc, pGetBoundsRect );
1344     ret = physdev->funcs->pGetBoundsRect( physdev, &device_rect, DCB_RESET );
1345     if (!ret)
1346     {
1347         release_dc_ptr( dc );
1348         return 0;
1349     }
1350     if (dc->bounds_enabled && ret == DCB_SET) add_bounds_rect( &dc->bounds, &device_rect );
1351
1352     if (rect)
1353     {
1354         if (is_rect_empty( &dc->bounds ))
1355         {
1356             rect->left = rect->top = rect->right = rect->bottom = 0;
1357             ret = DCB_RESET;
1358         }
1359         else
1360         {
1361             *rect = dc->bounds;
1362             rect->left   = max( rect->left, 0 );
1363             rect->top    = max( rect->top, 0 );
1364             rect->right  = min( rect->right, dc->vis_rect.right - dc->vis_rect.left );
1365             rect->bottom = min( rect->bottom, dc->vis_rect.bottom - dc->vis_rect.top );
1366             ret = DCB_SET;
1367         }
1368         DPtoLP( hdc, (POINT *)rect, 2 );
1369     }
1370     else ret = 0;
1371
1372     if (flags & DCB_RESET) reset_bounds( &dc->bounds );
1373     release_dc_ptr( dc );
1374     return ret;
1375 }
1376
1377
1378 /***********************************************************************
1379  *           SetBoundsRect    (GDI32.@)
1380  */
1381 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1382 {
1383     PHYSDEV physdev;
1384     UINT ret;
1385     DC *dc;
1386
1387     if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
1388     if (!(dc = get_dc_ptr( hdc ))) return 0;
1389
1390     physdev = GET_DC_PHYSDEV( dc, pSetBoundsRect );
1391     ret = physdev->funcs->pSetBoundsRect( physdev, &dc->bounds, flags );
1392     if (!ret)
1393     {
1394         release_dc_ptr( dc );
1395         return 0;
1396     }
1397
1398     ret = (dc->bounds_enabled ? DCB_ENABLE : DCB_DISABLE) |
1399           (is_rect_empty( &dc->bounds ) ? ret & DCB_SET : DCB_SET);
1400
1401     if (flags & DCB_RESET) reset_bounds( &dc->bounds );
1402
1403     if ((flags & DCB_ACCUMULATE) && rect)
1404     {
1405         RECT rc = *rect;
1406
1407         LPtoDP( hdc, (POINT *)&rc, 2 );
1408         add_bounds_rect( &dc->bounds, &rc );
1409     }
1410
1411     if (flags & DCB_ENABLE) dc->bounds_enabled = TRUE;
1412     if (flags & DCB_DISABLE) dc->bounds_enabled = FALSE;
1413
1414     release_dc_ptr( dc );
1415     return ret;
1416 }
1417
1418
1419 /***********************************************************************
1420  *              GetRelAbs               (GDI32.@)
1421  */
1422 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1423 {
1424     INT ret = 0;
1425     DC *dc = get_dc_ptr( hdc );
1426     if (dc)
1427     {
1428         ret = dc->relAbsMode;
1429         release_dc_ptr( dc );
1430     }
1431     return ret;
1432 }
1433
1434
1435
1436
1437 /***********************************************************************
1438  *              GetBkMode (GDI32.@)
1439  */
1440 INT WINAPI GetBkMode( HDC hdc )
1441 {
1442     INT ret = 0;
1443     DC * dc = get_dc_ptr( hdc );
1444     if (dc)
1445     {
1446         ret = dc->backgroundMode;
1447         release_dc_ptr( dc );
1448     }
1449     return ret;
1450 }
1451
1452
1453 /***********************************************************************
1454  *              SetBkMode (GDI32.@)
1455  */
1456 INT WINAPI SetBkMode( HDC hdc, INT mode )
1457 {
1458     INT ret = 0;
1459     DC *dc;
1460
1461     if ((mode <= 0) || (mode > BKMODE_LAST))
1462     {
1463         SetLastError(ERROR_INVALID_PARAMETER);
1464         return 0;
1465     }
1466     if ((dc = get_dc_ptr( hdc )))
1467     {
1468         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetBkMode );
1469         mode = physdev->funcs->pSetBkMode( physdev, mode );
1470         if (mode)
1471         {
1472             ret = dc->backgroundMode;
1473             dc->backgroundMode = mode;
1474         }
1475         release_dc_ptr( dc );
1476     }
1477     return ret;
1478 }
1479
1480
1481 /***********************************************************************
1482  *              GetROP2 (GDI32.@)
1483  */
1484 INT WINAPI GetROP2( HDC hdc )
1485 {
1486     INT ret = 0;
1487     DC * dc = get_dc_ptr( hdc );
1488     if (dc)
1489     {
1490         ret = dc->ROPmode;
1491         release_dc_ptr( dc );
1492     }
1493     return ret;
1494 }
1495
1496
1497 /***********************************************************************
1498  *              SetROP2 (GDI32.@)
1499  */
1500 INT WINAPI SetROP2( HDC hdc, INT mode )
1501 {
1502     INT ret = 0;
1503     DC *dc;
1504
1505     if ((mode < R2_BLACK) || (mode > R2_WHITE))
1506     {
1507         SetLastError(ERROR_INVALID_PARAMETER);
1508         return 0;
1509     }
1510     if ((dc = get_dc_ptr( hdc )))
1511     {
1512         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetROP2 );
1513         mode = physdev->funcs->pSetROP2( physdev, mode );
1514         if (mode)
1515         {
1516             ret = dc->ROPmode;
1517             dc->ROPmode = mode;
1518         }
1519         release_dc_ptr( dc );
1520     }
1521     return ret;
1522 }
1523
1524
1525 /***********************************************************************
1526  *              SetRelAbs (GDI32.@)
1527  */
1528 INT WINAPI SetRelAbs( HDC hdc, INT mode )
1529 {
1530     INT ret = 0;
1531     DC *dc;
1532
1533     if ((mode != ABSOLUTE) && (mode != RELATIVE))
1534     {
1535         SetLastError(ERROR_INVALID_PARAMETER);
1536         return 0;
1537     }
1538     if ((dc = get_dc_ptr( hdc )))
1539     {
1540         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetRelAbs );
1541         mode = physdev->funcs->pSetRelAbs( physdev, mode );
1542         if (mode)
1543         {
1544             ret = dc->relAbsMode;
1545             dc->relAbsMode = mode;
1546         }
1547         release_dc_ptr( dc );
1548     }
1549     return ret;
1550 }
1551
1552
1553 /***********************************************************************
1554  *              GetPolyFillMode (GDI32.@)
1555  */
1556 INT WINAPI GetPolyFillMode( HDC hdc )
1557 {
1558     INT ret = 0;
1559     DC * dc = get_dc_ptr( hdc );
1560     if (dc)
1561     {
1562         ret = dc->polyFillMode;
1563         release_dc_ptr( dc );
1564     }
1565     return ret;
1566 }
1567
1568
1569 /***********************************************************************
1570  *              SetPolyFillMode (GDI32.@)
1571  */
1572 INT WINAPI SetPolyFillMode( HDC hdc, INT mode )
1573 {
1574     INT ret = 0;
1575     DC *dc;
1576
1577     if ((mode <= 0) || (mode > POLYFILL_LAST))
1578     {
1579         SetLastError(ERROR_INVALID_PARAMETER);
1580         return 0;
1581     }
1582     if ((dc = get_dc_ptr( hdc )))
1583     {
1584         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetPolyFillMode );
1585         mode = physdev->funcs->pSetPolyFillMode( physdev, mode );
1586         if (mode)
1587         {
1588             ret = dc->polyFillMode;
1589             dc->polyFillMode = mode;
1590         }
1591         release_dc_ptr( dc );
1592     }
1593     return ret;
1594 }
1595
1596
1597 /***********************************************************************
1598  *              GetStretchBltMode (GDI32.@)
1599  */
1600 INT WINAPI GetStretchBltMode( HDC hdc )
1601 {
1602     INT ret = 0;
1603     DC * dc = get_dc_ptr( hdc );
1604     if (dc)
1605     {
1606         ret = dc->stretchBltMode;
1607         release_dc_ptr( dc );
1608     }
1609     return ret;
1610 }
1611
1612
1613 /***********************************************************************
1614  *              SetStretchBltMode (GDI32.@)
1615  */
1616 INT WINAPI SetStretchBltMode( HDC hdc, INT mode )
1617 {
1618     INT ret = 0;
1619     DC *dc;
1620
1621     if ((mode <= 0) || (mode > MAXSTRETCHBLTMODE))
1622     {
1623         SetLastError(ERROR_INVALID_PARAMETER);
1624         return 0;
1625     }
1626     if ((dc = get_dc_ptr( hdc )))
1627     {
1628         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetStretchBltMode );
1629         mode = physdev->funcs->pSetStretchBltMode( physdev, mode );
1630         if (mode)
1631         {
1632             ret = dc->stretchBltMode;
1633             dc->stretchBltMode = mode;
1634         }
1635         release_dc_ptr( dc );
1636     }
1637     return ret;
1638 }
1639
1640
1641 /***********************************************************************
1642  *              GetMapMode (GDI32.@)
1643  */
1644 INT WINAPI GetMapMode( HDC hdc )
1645 {
1646     INT ret = 0;
1647     DC * dc = get_dc_ptr( hdc );
1648     if (dc)
1649     {
1650         ret = dc->MapMode;
1651         release_dc_ptr( dc );
1652     }
1653     return ret;
1654 }
1655
1656
1657 /***********************************************************************
1658  *              GetBrushOrgEx (GDI32.@)
1659  */
1660 BOOL WINAPI GetBrushOrgEx( HDC hdc, LPPOINT pt )
1661 {
1662     DC * dc = get_dc_ptr( hdc );
1663     if (!dc) return FALSE;
1664     pt->x = dc->brushOrgX;
1665     pt->y = dc->brushOrgY;
1666     release_dc_ptr( dc );
1667     return TRUE;
1668 }
1669
1670
1671 /***********************************************************************
1672  *              GetCurrentPositionEx (GDI32.@)
1673  */
1674 BOOL WINAPI GetCurrentPositionEx( HDC hdc, LPPOINT pt )
1675 {
1676     DC * dc = get_dc_ptr( hdc );
1677     if (!dc) return FALSE;
1678     pt->x = dc->CursPosX;
1679     pt->y = dc->CursPosY;
1680     release_dc_ptr( dc );
1681     return TRUE;
1682 }
1683
1684
1685 /***********************************************************************
1686  *              GetViewportExtEx (GDI32.@)
1687  */
1688 BOOL WINAPI GetViewportExtEx( HDC hdc, LPSIZE size )
1689 {
1690     DC * dc = get_dc_ptr( hdc );
1691     if (!dc) return FALSE;
1692     size->cx = dc->vportExtX;
1693     size->cy = dc->vportExtY;
1694     release_dc_ptr( dc );
1695     return TRUE;
1696 }
1697
1698
1699 /***********************************************************************
1700  *              GetViewportOrgEx (GDI32.@)
1701  */
1702 BOOL WINAPI GetViewportOrgEx( HDC hdc, LPPOINT pt )
1703 {
1704     DC * dc = get_dc_ptr( hdc );
1705     if (!dc) return FALSE;
1706     pt->x = dc->vportOrgX;
1707     pt->y = dc->vportOrgY;
1708     release_dc_ptr( dc );
1709     return TRUE;
1710 }
1711
1712
1713 /***********************************************************************
1714  *              GetWindowExtEx (GDI32.@)
1715  */
1716 BOOL WINAPI GetWindowExtEx( HDC hdc, LPSIZE size )
1717 {
1718     DC * dc = get_dc_ptr( hdc );
1719     if (!dc) return FALSE;
1720     size->cx = dc->wndExtX;
1721     size->cy = dc->wndExtY;
1722     release_dc_ptr( dc );
1723     return TRUE;
1724 }
1725
1726
1727 /***********************************************************************
1728  *              GetWindowOrgEx (GDI32.@)
1729  */
1730 BOOL WINAPI GetWindowOrgEx( HDC hdc, LPPOINT pt )
1731 {
1732     DC * dc = get_dc_ptr( hdc );
1733     if (!dc) return FALSE;
1734     pt->x = dc->wndOrgX;
1735     pt->y = dc->wndOrgY;
1736     release_dc_ptr( dc );
1737     return TRUE;
1738 }
1739
1740
1741 /***********************************************************************
1742  *           GetLayout    (GDI32.@)
1743  *
1744  * Gets left->right or right->left text layout flags of a dc.
1745  *
1746  */
1747 DWORD WINAPI GetLayout(HDC hdc)
1748 {
1749     DWORD layout = GDI_ERROR;
1750
1751     DC * dc = get_dc_ptr( hdc );
1752     if (dc)
1753     {
1754         layout = dc->layout;
1755         release_dc_ptr( dc );
1756     }
1757
1758     TRACE("hdc : %p, layout : %08x\n", hdc, layout);
1759
1760     return layout;
1761 }
1762
1763 /***********************************************************************
1764  *           SetLayout    (GDI32.@)
1765  *
1766  * Sets left->right or right->left text layout flags of a dc.
1767  *
1768  */
1769 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1770 {
1771     DWORD oldlayout = GDI_ERROR;
1772
1773     DC * dc = get_dc_ptr( hdc );
1774     if (dc)
1775     {
1776         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetLayout );
1777         layout = physdev->funcs->pSetLayout( physdev, layout );
1778         if (layout != GDI_ERROR)
1779         {
1780             oldlayout = dc->layout;
1781             dc->layout = layout;
1782             if (layout != oldlayout)
1783             {
1784                 if (layout & LAYOUT_RTL) dc->MapMode = MM_ANISOTROPIC;
1785                 DC_UpdateXforms( dc );
1786             }
1787         }
1788         release_dc_ptr( dc );
1789     }
1790
1791     TRACE("hdc : %p, old layout : %08x, new layout : %08x\n", hdc, oldlayout, layout);
1792
1793     return oldlayout;
1794 }
1795
1796 /***********************************************************************
1797  *           GetDCBrushColor    (GDI32.@)
1798  */
1799 COLORREF WINAPI GetDCBrushColor(HDC hdc)
1800 {
1801     DC *dc;
1802     COLORREF dcBrushColor = CLR_INVALID;
1803
1804     TRACE("hdc(%p)\n", hdc);
1805
1806     dc = get_dc_ptr( hdc );
1807     if (dc)
1808     {
1809         dcBrushColor = dc->dcBrushColor;
1810         release_dc_ptr( dc );
1811     }
1812
1813     return dcBrushColor;
1814 }
1815
1816 /***********************************************************************
1817  *           SetDCBrushColor    (GDI32.@)
1818  */
1819 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1820 {
1821     DC *dc;
1822     COLORREF oldClr = CLR_INVALID;
1823
1824     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
1825
1826     dc = get_dc_ptr( hdc );
1827     if (dc)
1828     {
1829         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDCBrushColor );
1830         crColor = physdev->funcs->pSetDCBrushColor( physdev, crColor );
1831         if (crColor != CLR_INVALID)
1832         {
1833             oldClr = dc->dcBrushColor;
1834             dc->dcBrushColor = crColor;
1835         }
1836         release_dc_ptr( dc );
1837     }
1838
1839     return oldClr;
1840 }
1841
1842 /***********************************************************************
1843  *           GetDCPenColor    (GDI32.@)
1844  */
1845 COLORREF WINAPI GetDCPenColor(HDC hdc)
1846 {
1847     DC *dc;
1848     COLORREF dcPenColor = CLR_INVALID;
1849
1850     TRACE("hdc(%p)\n", hdc);
1851
1852     dc = get_dc_ptr( hdc );
1853     if (dc)
1854     {
1855         dcPenColor = dc->dcPenColor;
1856         release_dc_ptr( dc );
1857     }
1858
1859     return dcPenColor;
1860 }
1861
1862 /***********************************************************************
1863  *           SetDCPenColor    (GDI32.@)
1864  */
1865 COLORREF WINAPI SetDCPenColor(HDC hdc, COLORREF crColor)
1866 {
1867     DC *dc;
1868     COLORREF oldClr = CLR_INVALID;
1869
1870     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
1871
1872     dc = get_dc_ptr( hdc );
1873     if (dc)
1874     {
1875         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDCPenColor );
1876         crColor = physdev->funcs->pSetDCPenColor( physdev, crColor );
1877         if (crColor != CLR_INVALID)
1878         {
1879             oldClr = dc->dcPenColor;
1880             dc->dcPenColor = crColor;
1881         }
1882         release_dc_ptr( dc );
1883     }
1884
1885     return oldClr;
1886 }
1887
1888 /***********************************************************************
1889  *           CancelDC    (GDI32.@)
1890  */
1891 BOOL WINAPI CancelDC(HDC hdc)
1892 {
1893     FIXME("stub\n");
1894     return TRUE;
1895 }
1896
1897 /*******************************************************************
1898  *      GetMiterLimit [GDI32.@]
1899  *
1900  *
1901  */
1902 BOOL WINAPI GetMiterLimit(HDC hdc, PFLOAT peLimit)
1903 {
1904     BOOL bRet = FALSE;
1905     DC *dc;
1906
1907     TRACE("(%p,%p)\n", hdc, peLimit);
1908
1909     dc = get_dc_ptr( hdc );
1910     if (dc)
1911     {
1912         if (peLimit)
1913             *peLimit = dc->miterLimit;
1914
1915         release_dc_ptr( dc );
1916         bRet = TRUE;
1917     }
1918     return bRet;
1919 }
1920
1921 /*******************************************************************
1922  *      SetMiterLimit [GDI32.@]
1923  *
1924  *
1925  */
1926 BOOL WINAPI SetMiterLimit(HDC hdc, FLOAT eNewLimit, PFLOAT peOldLimit)
1927 {
1928     BOOL bRet = FALSE;
1929     DC *dc;
1930
1931     TRACE("(%p,%f,%p)\n", hdc, eNewLimit, peOldLimit);
1932
1933     dc = get_dc_ptr( hdc );
1934     if (dc)
1935     {
1936         if (peOldLimit)
1937             *peOldLimit = dc->miterLimit;
1938         dc->miterLimit = eNewLimit;
1939         release_dc_ptr( dc );
1940         bRet = TRUE;
1941     }
1942     return bRet;
1943 }
1944
1945 /*******************************************************************
1946  *      GdiIsMetaPrintDC [GDI32.@]
1947  */
1948 BOOL WINAPI GdiIsMetaPrintDC(HDC hdc)
1949 {
1950     FIXME("%p\n", hdc);
1951     return FALSE;
1952 }
1953
1954 /*******************************************************************
1955  *      GdiIsMetaFileDC [GDI32.@]
1956  */
1957 BOOL WINAPI GdiIsMetaFileDC(HDC hdc)
1958 {
1959     TRACE("%p\n", hdc);
1960
1961     switch( GetObjectType( hdc ) )
1962     {
1963     case OBJ_METADC:
1964     case OBJ_ENHMETADC:
1965         return TRUE;
1966     }
1967     return FALSE;
1968 }
1969
1970 /*******************************************************************
1971  *      GdiIsPlayMetafileDC [GDI32.@]
1972  */
1973 BOOL WINAPI GdiIsPlayMetafileDC(HDC hdc)
1974 {
1975     FIXME("%p\n", hdc);
1976     return FALSE;
1977 }