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