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(), 0, sizeof(*dc) ))) return NULL;
  79
  80     dc->nulldrv.funcs       = &null_driver;
  81     dc->nulldrv.next        = NULL;
  82     dc->dibdrv.dev.funcs    = &dib_driver;
  83     dc->dibdrv.dev.next     = NULL;
  84     dc->physDev             = &dc->nulldrv;
  85     dc->thread              = GetCurrentThreadId();
  86     dc->refcount            = 1;
  87     dc->dirty               = 0;
  88     dc->saveLevel           = 0;
  89     dc->saved_dc            = 0;
  90     dc->dwHookData          = 0;
  91     dc->hookProc            = NULL;
  92     dc->wndOrgX             = 0;
  93     dc->wndOrgY             = 0;
  94     dc->wndExtX             = 1;
  95     dc->wndExtY             = 1;
  96     dc->vportOrgX           = 0;
  97     dc->vportOrgY           = 0;
  98     dc->vportExtX           = 1;
  99     dc->vportExtY           = 1;
 100     dc->miterLimit          = 10.0f; /* 10.0 is the default, from MSDN */
 101     dc->flags               = 0;
 102     dc->layout              = 0;
 103     dc->hClipRgn            = 0;
 104     dc->hMetaRgn            = 0;
 105     dc->hMetaClipRgn        = 0;
 106     dc->hVisRgn             = 0;
 107     dc->hPen                = GDI_inc_ref_count( GetStockObject( BLACK_PEN ));
 108     dc->hBrush              = GDI_inc_ref_count( GetStockObject( WHITE_BRUSH ));
 109     dc->hFont               = GDI_inc_ref_count( GetStockObject( SYSTEM_FONT ));
 110     dc->hBitmap             = 0;
 111     dc->hDevice             = 0;
 112     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
 113     dc->gdiFont             = 0;
 114     dc->font_code_page      = CP_ACP;
 115     dc->ROPmode             = R2_COPYPEN;
 116     dc->polyFillMode        = ALTERNATE;
 117     dc->stretchBltMode      = BLACKONWHITE;
 118     dc->relAbsMode          = ABSOLUTE;
 119     dc->backgroundMode      = OPAQUE;
 120     dc->backgroundColor     = RGB( 255, 255, 255 );
 121     dc->dcBrushColor        = RGB( 255, 255, 255 );
 122     dc->dcPenColor          = RGB( 0, 0, 0 );
 123     dc->textColor           = RGB( 0, 0, 0 );
 124     dc->brushOrgX           = 0;
 125     dc->brushOrgY           = 0;
 126     dc->mapperFlags         = 0;
 127     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
 128     dc->charExtra           = 0;
 129     dc->breakExtra          = 0;
 130     dc->breakRem            = 0;
 131     dc->MapMode             = MM_TEXT;
 132     dc->GraphicsMode        = GM_COMPATIBLE;
 133     dc->pAbortProc          = NULL;
 134     dc->CursPosX            = 0;
 135     dc->CursPosY            = 0;
 136     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 137     dc->xformWorld2Wnd.eM11 = 1.0f;
 138     dc->xformWorld2Wnd.eM12 = 0.0f;
 139     dc->xformWorld2Wnd.eM21 = 0.0f;
 140     dc->xformWorld2Wnd.eM22 = 1.0f;
 141     dc->xformWorld2Wnd.eDx  = 0.0f;
 142     dc->xformWorld2Wnd.eDy  = 0.0f;
 143     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 144     dc->xformVport2World    = dc->xformWorld2Wnd;
 145     dc->vport2WorldValid    = TRUE;
 146     dc->BoundsRect.left     = 0;
 147     dc->BoundsRect.top      = 0;
 148     dc->BoundsRect.right    = 0;
 149     dc->BoundsRect.bottom   = 0;
 150     PATH_InitGdiPath(&dc->path);
 151
 152     if (!(dc->hSelf = alloc_gdi_handle( &dc->header, magic, &dc_funcs )))
 153     {
 154         HeapFree( GetProcessHeap(), 0, dc );
 155         return NULL;
 156     }
 157     dc->nulldrv.hdc = dc->hSelf;
 158     return dc;
 159 }
 160
 161
 162
 163 /***********************************************************************
 164  *           free_dc_state
 165  */
 166 static void free_dc_state( DC *dc )
 167 {
 168     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 169     if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 170     if (dc->hMetaClipRgn) DeleteObject( dc->hMetaClipRgn );
 171     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 172     PATH_DestroyGdiPath( &dc->path );
 173     HeapFree( GetProcessHeap(), 0, dc );
 174 }
 175
 176
 177 /***********************************************************************
 178  *           free_dc_ptr
 179  */
 180 void free_dc_ptr( DC *dc )
 181 {
 182     assert( dc->refcount == 1 );
 183
 184     while (dc->physDev != &dc->nulldrv)
 185     {
 186         PHYSDEV physdev = pop_dc_driver( &dc->physDev );
 187         physdev->funcs->pDeleteDC( physdev );
 188     }
 189     free_gdi_handle( dc->hSelf );
 190     free_dc_state( dc );
 191 }
 192
 193
 194 /***********************************************************************
 195  *           get_dc_ptr
 196  *
 197  * Retrieve a DC pointer but release the GDI lock.
 198  */
 199 DC *get_dc_ptr( HDC hdc )
 200 {
 201     DC *dc = get_dc_obj( hdc );
 202     if (!dc) return NULL;
 203
 204     if (!InterlockedCompareExchange( &dc->refcount, 1, 0 ))
 205     {
 206         dc->thread = GetCurrentThreadId();
 207     }
 208     else if (dc->thread != GetCurrentThreadId())
 209     {
 210         WARN( "dc %p belongs to thread %04x\n", hdc, dc->thread );
 211         GDI_ReleaseObj( hdc );
 212         return NULL;
 213     }
 214     else InterlockedIncrement( &dc->refcount );
 215
 216     GDI_ReleaseObj( hdc );
 217     return dc;
 218 }
 219
 220
 221 /***********************************************************************
 222  *           release_dc_ptr
 223  */
 224 void release_dc_ptr( DC *dc )
 225 {
 226     LONG ref;
 227
 228     dc->thread = 0;
 229     ref = InterlockedDecrement( &dc->refcount );
 230     assert( ref >= 0 );
 231     if (ref) dc->thread = GetCurrentThreadId();  /* we still own it */
 232 }
 233
 234
 235 /***********************************************************************
 236  *           update_dc
 237  *
 238  * Make sure the DC vis region is up to date.
 239  * This function may call up to USER so the GDI lock should _not_
 240  * be held when calling it.
 241  */
 242 void update_dc( DC *dc )
 243 {
 244     if (InterlockedExchange( &dc->dirty, 0 ) && dc->hookProc)
 245         dc->hookProc( dc->hSelf, DCHC_INVALIDVISRGN, dc->dwHookData, 0 );
 246 }
 247
 248
 249 /***********************************************************************
 250  *           DC_DeleteObject
 251  */
 252 static BOOL DC_DeleteObject( HGDIOBJ handle )
 253 {
 254     return DeleteDC( handle );
 255 }
 256
 257
 258 /***********************************************************************
 259  *           DC_InitDC
 260  *
 261  * Setup device-specific DC values for a newly created DC.
 262  */
 263 void DC_InitDC( DC* dc )
 264 {
 265     PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRealizeDefaultPalette );
 266     physdev->funcs->pRealizeDefaultPalette( physdev );
 267     SetTextColor( dc->hSelf, dc->textColor );
 268     SetBkColor( dc->hSelf, dc->backgroundColor );
 269     SelectObject( dc->hSelf, dc->hPen );
 270     SelectObject( dc->hSelf, dc->hBrush );
 271     SelectObject( dc->hSelf, dc->hFont );
 272     CLIPPING_UpdateGCRegion( dc );
 273     SetVirtualResolution( dc->hSelf, 0, 0, 0, 0 );
 274 }
 275
 276
 277 /***********************************************************************
 278  *           DC_InvertXform
 279  *
 280  * Computes the inverse of the transformation xformSrc and stores it to
 281  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 282  * is singular.
 283  */
 284 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 285 {
 286     double determinant;
 287
 288     determinant = xformSrc->eM11*xformSrc->eM22 -
 289         xformSrc->eM12*xformSrc->eM21;
 290     if (determinant > -1e-12 && determinant < 1e-12)
 291         return FALSE;
 292
 293     xformDest->eM11 =  xformSrc->eM22 / determinant;
 294     xformDest->eM12 = -xformSrc->eM12 / determinant;
 295     xformDest->eM21 = -xformSrc->eM21 / determinant;
 296     xformDest->eM22 =  xformSrc->eM11 / determinant;
 297     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 298                        xformSrc->eDy * xformDest->eM21;
 299     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 300                        xformSrc->eDy * xformDest->eM22;
 301
 302     return TRUE;
 303 }
 304
 305 /* Construct a transformation to do the window-to-viewport conversion */
 306 static void construct_window_to_viewport(DC *dc, XFORM *xform)
 307 {
 308     double scaleX, scaleY;
 309     scaleX = (double)dc->vportExtX / (double)dc->wndExtX;
 310     scaleY = (double)dc->vportExtY / (double)dc->wndExtY;
 311
 312     if (dc->layout & LAYOUT_RTL) scaleX = -scaleX;
 313     xform->eM11 = scaleX;
 314     xform->eM12 = 0.0;
 315     xform->eM21 = 0.0;
 316     xform->eM22 = scaleY;
 317     xform->eDx  = (double)dc->vportOrgX - scaleX * (double)dc->wndOrgX;
 318     xform->eDy  = (double)dc->vportOrgY - scaleY * (double)dc->wndOrgY;
 319     if (dc->layout & LAYOUT_RTL) xform->eDx = dc->vis_rect.right - dc->vis_rect.left - 1 - xform->eDx;
 320 }
 321
 322 /***********************************************************************
 323  *           DC_UpdateXforms
 324  *
 325  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 326  * fields of the specified DC by creating a transformation that
 327  * represents the current mapping mode and combining it with the DC's
 328  * world transform. This function should be called whenever the
 329  * parameters associated with the mapping mode (window and viewport
 330  * extents and origins) or the world transform change.
 331  */
 332 void DC_UpdateXforms( DC *dc )
 333 {
 334     XFORM xformWnd2Vport, oldworld2vport;
 335
 336     construct_window_to_viewport(dc, &xformWnd2Vport);
 337
 338     oldworld2vport = dc->xformWorld2Vport;
 339     /* Combine with the world transformation */
 340     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 341         &xformWnd2Vport );
 342
 343     /* Create inverse of world-to-viewport transformation */
 344     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 345         &dc->xformVport2World );
 346
 347     /* Reselect the font and pen back into the dc so that the size
 348        gets updated. */
 349     if (memcmp(&oldworld2vport, &dc->xformWorld2Vport, sizeof(oldworld2vport)) &&
 350         !GdiIsMetaFileDC(dc->hSelf))
 351     {
 352         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
 353         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_PEN));
 354     }
 355 }
 356
 357
 358 /***********************************************************************
 359  *           nulldrv_SaveDC
 360  */
 361 INT nulldrv_SaveDC( PHYSDEV dev )
 362 {
 363     DC *newdc, *dc = get_nulldrv_dc( dev );
 364
 365     if (!(newdc = HeapAlloc( GetProcessHeap(), 0, sizeof(*newdc )))) return 0;
 366     newdc->flags            = dc->flags;
 367     newdc->layout           = dc->layout;
 368     newdc->hPen             = dc->hPen;
 369     newdc->hBrush           = dc->hBrush;
 370     newdc->hFont            = dc->hFont;
 371     newdc->hBitmap          = dc->hBitmap;
 372     newdc->hDevice          = dc->hDevice;
 373     newdc->hPalette         = dc->hPalette;
 374     newdc->ROPmode          = dc->ROPmode;
 375     newdc->polyFillMode     = dc->polyFillMode;
 376     newdc->stretchBltMode   = dc->stretchBltMode;
 377     newdc->relAbsMode       = dc->relAbsMode;
 378     newdc->backgroundMode   = dc->backgroundMode;
 379     newdc->backgroundColor  = dc->backgroundColor;
 380     newdc->textColor        = dc->textColor;
 381     newdc->dcBrushColor     = dc->dcBrushColor;
 382     newdc->dcPenColor       = dc->dcPenColor;
 383     newdc->brushOrgX        = dc->brushOrgX;
 384     newdc->brushOrgY        = dc->brushOrgY;
 385     newdc->mapperFlags      = dc->mapperFlags;
 386     newdc->textAlign        = dc->textAlign;
 387     newdc->charExtra        = dc->charExtra;
 388     newdc->breakExtra       = dc->breakExtra;
 389     newdc->breakRem         = dc->breakRem;
 390     newdc->MapMode          = dc->MapMode;
 391     newdc->GraphicsMode     = dc->GraphicsMode;
 392     newdc->CursPosX         = dc->CursPosX;
 393     newdc->CursPosY         = dc->CursPosY;
 394     newdc->ArcDirection     = dc->ArcDirection;
 395     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 396     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 397     newdc->xformVport2World = dc->xformVport2World;
 398     newdc->vport2WorldValid = dc->vport2WorldValid;
 399     newdc->wndOrgX          = dc->wndOrgX;
 400     newdc->wndOrgY          = dc->wndOrgY;
 401     newdc->wndExtX          = dc->wndExtX;
 402     newdc->wndExtY          = dc->wndExtY;
 403     newdc->vportOrgX        = dc->vportOrgX;
 404     newdc->vportOrgY        = dc->vportOrgY;
 405     newdc->vportExtX        = dc->vportExtX;
 406     newdc->vportExtY        = dc->vportExtY;
 407     newdc->virtual_res      = dc->virtual_res;
 408     newdc->virtual_size     = dc->virtual_size;
 409     newdc->BoundsRect       = dc->BoundsRect;
 410     newdc->gdiFont          = dc->gdiFont;
 411
 412     PATH_InitGdiPath( &newdc->path );
 413
 414     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 415
 416     newdc->hVisRgn      = 0;
 417     newdc->hClipRgn     = 0;
 418     newdc->hMetaRgn     = 0;
 419     newdc->hMetaClipRgn = 0;
 420     if (dc->hClipRgn)
 421     {
 422         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 423         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 424     }
 425     if (dc->hMetaRgn)
 426     {
 427         newdc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 428         CombineRgn( newdc->hMetaRgn, dc->hMetaRgn, 0, RGN_COPY );
 429     }
 430
 431     /* don't bother recomputing hMetaClipRgn, we'll do that in SetDCState */
 432
 433     if (!PATH_AssignGdiPath( &newdc->path, &dc->path ))
 434     {
 435         release_dc_ptr( dc );
 436         free_dc_state( newdc );
 437         return 0;
 438     }
 439
 440     newdc->saved_dc = dc->saved_dc;
 441     dc->saved_dc = newdc;
 442     return ++dc->saveLevel;
 443 }
 444
 445
 446 /***********************************************************************
 447  *           restore_dc_state
 448  */
 449 BOOL nulldrv_RestoreDC( PHYSDEV dev, INT level )
 450 {
 451     DC *dcs, *first_dcs, *dc = get_nulldrv_dc( dev );
 452     INT save_level;
 453
 454     /* find the state level to restore */
 455
 456     if (abs(level) > dc->saveLevel || level == 0) return FALSE;
 457     if (level < 0) level = dc->saveLevel + level + 1;
 458     first_dcs = dc->saved_dc;
 459     for (dcs = first_dcs, save_level = dc->saveLevel; save_level > level; save_level--)
 460         dcs = dcs->saved_dc;
 461
 462     /* restore the state */
 463
 464     if (!PATH_AssignGdiPath( &dc->path, &dcs->path )) return FALSE;
 465
 466     dc->flags            = dcs->flags;
 467     dc->layout           = dcs->layout;
 468     dc->hDevice          = dcs->hDevice;
 469     dc->ROPmode          = dcs->ROPmode;
 470     dc->polyFillMode     = dcs->polyFillMode;
 471     dc->stretchBltMode   = dcs->stretchBltMode;
 472     dc->relAbsMode       = dcs->relAbsMode;
 473     dc->backgroundMode   = dcs->backgroundMode;
 474     dc->backgroundColor  = dcs->backgroundColor;
 475     dc->textColor        = dcs->textColor;
 476     dc->dcBrushColor     = dcs->dcBrushColor;
 477     dc->dcPenColor       = dcs->dcPenColor;
 478     dc->brushOrgX        = dcs->brushOrgX;
 479     dc->brushOrgY        = dcs->brushOrgY;
 480     dc->mapperFlags      = dcs->mapperFlags;
 481     dc->textAlign        = dcs->textAlign;
 482     dc->charExtra        = dcs->charExtra;
 483     dc->breakExtra       = dcs->breakExtra;
 484     dc->breakRem         = dcs->breakRem;
 485     dc->MapMode          = dcs->MapMode;
 486     dc->GraphicsMode     = dcs->GraphicsMode;
 487     dc->CursPosX         = dcs->CursPosX;
 488     dc->CursPosY         = dcs->CursPosY;
 489     dc->ArcDirection     = dcs->ArcDirection;
 490     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 491     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 492     dc->xformVport2World = dcs->xformVport2World;
 493     dc->vport2WorldValid = dcs->vport2WorldValid;
 494     dc->BoundsRect       = dcs->BoundsRect;
 495
 496     dc->wndOrgX          = dcs->wndOrgX;
 497     dc->wndOrgY          = dcs->wndOrgY;
 498     dc->wndExtX          = dcs->wndExtX;
 499     dc->wndExtY          = dcs->wndExtY;
 500     dc->vportOrgX        = dcs->vportOrgX;
 501     dc->vportOrgY        = dcs->vportOrgY;
 502     dc->vportExtX        = dcs->vportExtX;
 503     dc->vportExtY        = dcs->vportExtY;
 504     dc->virtual_res      = dcs->virtual_res;
 505     dc->virtual_size     = dcs->virtual_size;
 506
 507     if (dcs->hClipRgn)
 508     {
 509         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 510         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 511     }
 512     else
 513     {
 514         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 515         dc->hClipRgn = 0;
 516     }
 517     if (dcs->hMetaRgn)
 518     {
 519         if (!dc->hMetaRgn) dc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 520         CombineRgn( dc->hMetaRgn, dcs->hMetaRgn, 0, RGN_COPY );
 521     }
 522     else
 523     {
 524         if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 525         dc->hMetaRgn = 0;
 526     }
 527     DC_UpdateXforms( dc );
 528     CLIPPING_UpdateGCRegion( dc );
 529
 530     SelectObject( dev->hdc, dcs->hBitmap );
 531     SelectObject( dev->hdc, dcs->hBrush );
 532     SelectObject( dev->hdc, dcs->hFont );
 533     SelectObject( dev->hdc, dcs->hPen );
 534     SetBkColor( dev->hdc, dcs->backgroundColor);
 535     SetTextColor( dev->hdc, dcs->textColor);
 536     GDISelectPalette( dev->hdc, dcs->hPalette, FALSE );
 537
 538     dc->saved_dc  = dcs->saved_dc;
 539     dcs->saved_dc = 0;
 540     dc->saveLevel = save_level - 1;
 541
 542     /* now destroy all the saved DCs */
 543
 544     while (first_dcs)
 545     {
 546         DC *next = first_dcs->saved_dc;
 547         free_dc_state( first_dcs );
 548         first_dcs = next;
 549     }
 550     return TRUE;
 551 }
 552
 553
 554 /***********************************************************************
 555  *           SaveDC    (GDI32.@)
 556  */
 557 INT WINAPI SaveDC( HDC hdc )
 558 {
 559     DC * dc;
 560     INT ret = 0;
 561
 562     if ((dc = get_dc_ptr( hdc )))
 563     {
 564         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSaveDC );
 565         ret = physdev->funcs->pSaveDC( physdev );
 566         release_dc_ptr( dc );
 567     }
 568     return ret;
 569 }
 570
 571
 572 /***********************************************************************
 573  *           RestoreDC    (GDI32.@)
 574  */
 575 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 576 {
 577     DC *dc;
 578     BOOL success = FALSE;
 579
 580     TRACE("%p %d\n", hdc, level );
 581     if ((dc = get_dc_ptr( hdc )))
 582     {
 583         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRestoreDC );
 584         update_dc( dc );
 585         success = physdev->funcs->pRestoreDC( physdev, level );
 586         release_dc_ptr( dc );
 587     }
 588     return success;
 589 }
 590
 591
 592 /***********************************************************************
 593  *           CreateDCW    (GDI32.@)
 594  */
 595 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 596                       const DEVMODEW *initData )
 597 {
 598     HDC hdc;
 599     DC * dc;
 600     const DC_FUNCTIONS *funcs;
 601     WCHAR buf[300];
 602
 603     GDI_CheckNotLock();
 604
 605     if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
 606     {
 607         if (!driver)
 608         {
 609             ERR( "no device found for %s\n", debugstr_w(device) );
 610             return 0;
 611         }
 612         strcpyW(buf, driver);
 613     }
 614
 615     if (!(funcs = DRIVER_load_driver( buf )))
 616     {
 617         ERR( "no driver found for %s\n", debugstr_w(buf) );
 618         return 0;
 619     }
 620     if (!(dc = alloc_dc_ptr( OBJ_DC ))) goto error;
 621     hdc = dc->hSelf;
 622
 623     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 624     if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error;
 625
 626     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 627           debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
 628
 629     if (funcs->pCreateDC)
 630     {
 631         PHYSDEV physdev;
 632         if (!funcs->pCreateDC( hdc, &physdev, buf, device, output, initData ))
 633         {
 634             WARN("creation aborted by device\n" );
 635             goto error;
 636         }
 637         push_dc_driver( &dc->physDev, physdev, funcs );
 638     }
 639
 640     dc->vis_rect.left   = 0;
 641     dc->vis_rect.top    = 0;
 642     dc->vis_rect.right  = GetDeviceCaps( hdc, DESKTOPHORZRES );
 643     dc->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
 644     SetRectRgn(dc->hVisRgn, dc->vis_rect.left, dc->vis_rect.top, dc->vis_rect.right, dc->vis_rect.bottom);
 645
 646     DC_InitDC( dc );
 647     release_dc_ptr( dc );
 648     return hdc;
 649
 650 error:
 651     if (dc) free_dc_ptr( dc );
 652     return 0;
 653 }
 654
 655
 656 /***********************************************************************
 657  *           CreateDCA    (GDI32.@)
 658  */
 659 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 660                       const DEVMODEA *initData )
 661 {
 662     UNICODE_STRING driverW, deviceW, outputW;
 663     DEVMODEW *initDataW;
 664     HDC ret;
 665
 666     if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
 667     else driverW.Buffer = NULL;
 668
 669     if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
 670     else deviceW.Buffer = NULL;
 671
 672     if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
 673     else outputW.Buffer = NULL;
 674
 675     initDataW = NULL;
 676     if (initData)
 677     {
 678         /* don't convert initData for DISPLAY driver, it's not used */
 679         if (!driverW.Buffer || strcmpiW( driverW.Buffer, displayW ))
 680             initDataW = GdiConvertToDevmodeW(initData);
 681     }
 682
 683     ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
 684
 685     RtlFreeUnicodeString(&driverW);
 686     RtlFreeUnicodeString(&deviceW);
 687     RtlFreeUnicodeString(&outputW);
 688     HeapFree(GetProcessHeap(), 0, initDataW);
 689     return ret;
 690 }
 691
 692
 693 /***********************************************************************
 694  *           CreateICA    (GDI32.@)
 695  */
 696 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 697                           const DEVMODEA* initData )
 698 {
 699       /* Nothing special yet for ICs */
 700     return CreateDCA( driver, device, output, initData );
 701 }
 702
 703
 704 /***********************************************************************
 705  *           CreateICW    (GDI32.@)
 706  */
 707 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 708                           const DEVMODEW* initData )
 709 {
 710       /* Nothing special yet for ICs */
 711     return CreateDCW( driver, device, output, initData );
 712 }
 713
 714
 715 /***********************************************************************
 716  *           CreateCompatibleDC   (GDI32.@)
 717  */
 718 HDC WINAPI CreateCompatibleDC( HDC hdc )
 719 {
 720     DC *dc, *origDC;
 721     HDC ret;
 722     const struct gdi_dc_funcs *funcs = &null_driver;
 723     PHYSDEV physDev = NULL;
 724
 725     GDI_CheckNotLock();
 726
 727     if (hdc)
 728     {
 729         if (!(origDC = get_dc_ptr( hdc ))) return 0;
 730         physDev = GET_DC_PHYSDEV( origDC, pCreateCompatibleDC );
 731         funcs = physDev->funcs;
 732         release_dc_ptr( origDC );
 733     }
 734
 735     if (!(dc = alloc_dc_ptr( OBJ_MEMDC ))) goto error;
 736
 737     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 738
 739     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 740     dc->vis_rect.left   = 0;
 741     dc->vis_rect.top    = 0;
 742     dc->vis_rect.right  = 1;
 743     dc->vis_rect.bottom = 1;
 744     if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error;   /* default bitmap is 1x1 */
 745
 746     ret = dc->hSelf;
 747
 748     if (!funcs->pCreateCompatibleDC( physDev, &dc->physDev ))
 749     {
 750         WARN("creation aborted by device\n");
 751         goto error;
 752     }
 753     DC_InitDC( dc );
 754     release_dc_ptr( dc );
 755     return ret;
 756
 757 error:
 758     if (dc) free_dc_ptr( dc );
 759     return 0;
 760 }
 761
 762
 763 /***********************************************************************
 764  *           DeleteDC    (GDI32.@)
 765  */
 766 BOOL WINAPI DeleteDC( HDC hdc )
 767 {
 768     DC * dc;
 769
 770     TRACE("%p\n", hdc );
 771
 772     GDI_CheckNotLock();
 773
 774     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
 775     if (dc->refcount != 1)
 776     {
 777         FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
 778         release_dc_ptr( dc );
 779         return FALSE;
 780     }
 781
 782     /* Call hook procedure to check whether is it OK to delete this DC */
 783     if (dc->hookProc && !dc->hookProc( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ))
 784     {
 785         release_dc_ptr( dc );
 786         return TRUE;
 787     }
 788
 789     while (dc->saveLevel)
 790     {
 791         DC *dcs = dc->saved_dc;
 792         dc->saved_dc = dcs->saved_dc;
 793         dc->saveLevel--;
 794         free_dc_state( dcs );
 795     }
 796
 797     SelectObject( hdc, GetStockObject(BLACK_PEN) );
 798     SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 799     SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 800     SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 801
 802     free_dc_ptr( dc );
 803     return TRUE;
 804 }
 805
 806
 807 /***********************************************************************
 808  *           ResetDCW    (GDI32.@)
 809  */
 810 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 811 {
 812     DC *dc;
 813     HDC ret = 0;
 814
 815     if ((dc = get_dc_ptr( hdc )))
 816     {
 817         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pResetDC );
 818         ret = physdev->funcs->pResetDC( physdev, devmode );
 819         if (ret)  /* reset the visible region */
 820         {
 821             dc->dirty = 0;
 822             dc->vis_rect.left   = 0;
 823             dc->vis_rect.top    = 0;
 824             dc->vis_rect.right  = GetDeviceCaps( hdc, DESKTOPHORZRES );
 825             dc->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
 826             SetRectRgn( dc->hVisRgn, dc->vis_rect.left, dc->vis_rect.top,
 827                         dc->vis_rect.right, dc->vis_rect.bottom );
 828             CLIPPING_UpdateGCRegion( dc );
 829         }
 830         release_dc_ptr( dc );
 831     }
 832     return ret;
 833 }
 834
 835
 836 /***********************************************************************
 837  *           ResetDCA    (GDI32.@)
 838  */
 839 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 840 {
 841     DEVMODEW *devmodeW;
 842     HDC ret;
 843
 844     if (devmode) devmodeW = GdiConvertToDevmodeW(devmode);
 845     else devmodeW = NULL;
 846
 847     ret = ResetDCW(hdc, devmodeW);
 848
 849     HeapFree(GetProcessHeap(), 0, devmodeW);
 850     return ret;
 851 }
 852
 853
 854 /***********************************************************************
 855  *           GetDeviceCaps    (GDI32.@)
 856  */
 857 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 858 {
 859     DC *dc;
 860     INT ret = 0;
 861
 862     if ((dc = get_dc_ptr( hdc )))
 863     {
 864         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetDeviceCaps );
 865         ret = physdev->funcs->pGetDeviceCaps( physdev, cap );
 866         release_dc_ptr( dc );
 867     }
 868     return ret;
 869 }
 870
 871
 872 /***********************************************************************
 873  *              GetBkColor (GDI32.@)
 874  */
 875 COLORREF WINAPI GetBkColor( HDC hdc )
 876 {
 877     COLORREF ret = 0;
 878     DC * dc = get_dc_ptr( hdc );
 879     if (dc)
 880     {
 881         ret = dc->backgroundColor;
 882         release_dc_ptr( dc );
 883     }
 884     return ret;
 885 }
 886
 887
 888 /***********************************************************************
 889  *           SetBkColor    (GDI32.@)
 890  */
 891 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 892 {
 893     COLORREF ret = CLR_INVALID;
 894     DC * dc = get_dc_ptr( hdc );
 895
 896     TRACE("hdc=%p color=0x%08x\n", hdc, color);
 897
 898     if (dc)
 899     {
 900         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetBkColor );
 901         color = physdev->funcs->pSetBkColor( physdev, color );
 902         if (color != CLR_INVALID)
 903         {
 904             ret = dc->backgroundColor;
 905             dc->backgroundColor = color;
 906         }
 907         release_dc_ptr( dc );
 908     }
 909     return ret;
 910 }
 911
 912
 913 /***********************************************************************
 914  *              GetTextColor (GDI32.@)
 915  */
 916 COLORREF WINAPI GetTextColor( HDC hdc )
 917 {
 918     COLORREF ret = 0;
 919     DC * dc = get_dc_ptr( hdc );
 920     if (dc)
 921     {
 922         ret = dc->textColor;
 923         release_dc_ptr( dc );
 924     }
 925     return ret;
 926 }
 927
 928
 929 /***********************************************************************
 930  *           SetTextColor    (GDI32.@)
 931  */
 932 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 933 {
 934     COLORREF ret = CLR_INVALID;
 935     DC * dc = get_dc_ptr( hdc );
 936
 937     TRACE(" hdc=%p color=0x%08x\n", hdc, color);
 938
 939     if (dc)
 940     {
 941         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetTextColor );
 942         color = physdev->funcs->pSetTextColor( physdev, color );
 943         if (color != CLR_INVALID)
 944         {
 945             ret = dc->textColor;
 946             dc->textColor = color;
 947         }
 948         release_dc_ptr( dc );
 949     }
 950     return ret;
 951 }
 952
 953
 954 /***********************************************************************
 955  *              GetTextAlign (GDI32.@)
 956  */
 957 UINT WINAPI GetTextAlign( HDC hdc )
 958 {
 959     UINT ret = 0;
 960     DC * dc = get_dc_ptr( hdc );
 961     if (dc)
 962     {
 963         ret = dc->textAlign;
 964         release_dc_ptr( dc );
 965     }
 966     return ret;
 967 }
 968
 969
 970 /***********************************************************************
 971  *           SetTextAlign    (GDI32.@)
 972  */
 973 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 974 {
 975     UINT ret = GDI_ERROR;
 976     DC *dc = get_dc_ptr( hdc );
 977
 978     TRACE("hdc=%p align=%d\n", hdc, align);
 979
 980     if (dc)
 981     {
 982         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetTextAlign );
 983         align = physdev->funcs->pSetTextAlign( physdev, align );
 984         if (align != GDI_ERROR)
 985         {
 986             ret = dc->textAlign;
 987             dc->textAlign = align;
 988         }
 989         release_dc_ptr( dc );
 990     }
 991     return ret;
 992 }
 993
 994 /***********************************************************************
 995  *           GetDCOrgEx  (GDI32.@)
 996  */
 997 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 998 {
 999     DC * dc;
1000
1001     if (!lpp) return FALSE;
1002     if (!(dc = get_dc_ptr( hDC ))) return FALSE;
1003     lpp->x = dc->vis_rect.left;
1004     lpp->y = dc->vis_rect.top;
1005     release_dc_ptr( dc );
1006     return TRUE;
1007 }
1008
1009
1010 /***********************************************************************
1011  *              GetGraphicsMode (GDI32.@)
1012  */
1013 INT WINAPI GetGraphicsMode( HDC hdc )
1014 {
1015     INT ret = 0;
1016     DC * dc = get_dc_ptr( hdc );
1017     if (dc)
1018     {
1019         ret = dc->GraphicsMode;
1020         release_dc_ptr( dc );
1021     }
1022     return ret;
1023 }
1024
1025
1026 /***********************************************************************
1027  *           SetGraphicsMode    (GDI32.@)
1028  */
1029 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
1030 {
1031     INT ret = 0;
1032     DC *dc = get_dc_ptr( hdc );
1033
1034     /* One would think that setting the graphics mode to GM_COMPATIBLE
1035      * would also reset the world transformation matrix to the unity
1036      * matrix. However, in Windows, this is not the case. This doesn't
1037      * make a lot of sense to me, but that's the way it is.
1038      */
1039     if (!dc) return 0;
1040     if ((mode > 0) && (mode <= GM_LAST))
1041     {
1042         ret = dc->GraphicsMode;
1043         dc->GraphicsMode = mode;
1044     }
1045     release_dc_ptr( dc );
1046     return ret;
1047 }
1048
1049
1050 /***********************************************************************
1051  *              GetArcDirection (GDI32.@)
1052  */
1053 INT WINAPI GetArcDirection( HDC hdc )
1054 {
1055     INT ret = 0;
1056     DC * dc = get_dc_ptr( hdc );
1057     if (dc)
1058     {
1059         ret = dc->ArcDirection;
1060         release_dc_ptr( dc );
1061     }
1062     return ret;
1063 }
1064
1065
1066 /***********************************************************************
1067  *           SetArcDirection    (GDI32.@)
1068  */
1069 INT WINAPI SetArcDirection( HDC hdc, INT dir )
1070 {
1071     DC * dc;
1072     INT ret = 0;
1073
1074     if (dir != AD_COUNTERCLOCKWISE && dir != AD_CLOCKWISE)
1075     {
1076         SetLastError(ERROR_INVALID_PARAMETER);
1077         return 0;
1078     }
1079
1080     if ((dc = get_dc_ptr( hdc )))
1081     {
1082         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetArcDirection );
1083         dir = physdev->funcs->pSetArcDirection( physdev, dir );
1084         if (dir)
1085         {
1086             ret = dc->ArcDirection;
1087             dc->ArcDirection = dir;
1088         }
1089         release_dc_ptr( dc );
1090     }
1091     return ret;
1092 }
1093
1094
1095 /***********************************************************************
1096  *           GetWorldTransform    (GDI32.@)
1097  */
1098 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1099 {
1100     DC * dc;
1101     if (!xform) return FALSE;
1102     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
1103     *xform = dc->xformWorld2Wnd;
1104     release_dc_ptr( dc );
1105     return TRUE;
1106 }
1107
1108
1109 /***********************************************************************
1110  *           GetTransform    (GDI32.@)
1111  *
1112  * Undocumented
1113  *
1114  * Returns one of the co-ordinate space transforms
1115  *
1116  * PARAMS
1117  *    hdc   [I] Device context.
1118  *    which [I] Which xform to return:
1119  *                  0x203 World -> Page transform (that set by SetWorldTransform).
1120  *                  0x304 Page -> Device transform (the mapping mode transform).
1121  *                  0x204 World -> Device transform (the combination of the above two).
1122  *                  0x402 Device -> World transform (the inversion of the above).
1123  *    xform [O] The xform.
1124  *
1125  */
1126 BOOL WINAPI GetTransform( HDC hdc, DWORD which, XFORM *xform )
1127 {
1128     BOOL ret = TRUE;
1129     DC *dc = get_dc_ptr( hdc );
1130     if (!dc) return FALSE;
1131
1132     switch(which)
1133     {
1134     case 0x203:
1135         *xform = dc->xformWorld2Wnd;
1136         break;
1137
1138     case 0x304:
1139         construct_window_to_viewport(dc, xform);
1140         break;
1141
1142     case 0x204:
1143         *xform = dc->xformWorld2Vport;
1144         break;
1145
1146     case 0x402:
1147         *xform = dc->xformVport2World;
1148         break;
1149
1150     default:
1151         FIXME("Unknown code %x\n", which);
1152         ret = FALSE;
1153     }
1154
1155     release_dc_ptr( dc );
1156     return ret;
1157 }
1158
1159
1160 /****************************************************************************
1161  * CombineTransform [GDI32.@]
1162  * Combines two transformation matrices.
1163  *
1164  * PARAMS
1165  *    xformResult [O] Stores the result of combining the two matrices
1166  *    xform1      [I] Specifies the first matrix to apply
1167  *    xform2      [I] Specifies the second matrix to apply
1168  *
1169  * REMARKS
1170  *    The same matrix can be passed in for more than one of the parameters.
1171  *
1172  * RETURNS
1173  *  Success: TRUE.
1174  *  Failure: FALSE. Use GetLastError() to determine the cause.
1175  */
1176 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1177     const XFORM *xform2 )
1178 {
1179     XFORM xformTemp;
1180
1181     /* Check for illegal parameters */
1182     if (!xformResult || !xform1 || !xform2)
1183         return FALSE;
1184
1185     /* Create the result in a temporary XFORM, since xformResult may be
1186      * equal to xform1 or xform2 */
1187     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1188                      xform1->eM12 * xform2->eM21;
1189     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1190                      xform1->eM12 * xform2->eM22;
1191     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1192                      xform1->eM22 * xform2->eM21;
1193     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1194                      xform1->eM22 * xform2->eM22;
1195     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1196                      xform1->eDy  * xform2->eM21 +
1197                      xform2->eDx;
1198     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1199                      xform1->eDy  * xform2->eM22 +
1200                      xform2->eDy;
1201
1202     /* Copy the result to xformResult */
1203     *xformResult = xformTemp;
1204
1205     return TRUE;
1206 }
1207
1208
1209 /***********************************************************************
1210  *           SetDCHook   (GDI32.@)
1211  *
1212  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1213  */
1214 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD_PTR dwHookData )
1215 {
1216     DC *dc = get_dc_ptr( hdc );
1217
1218     if (!dc) return FALSE;
1219
1220     dc->dwHookData = dwHookData;
1221     dc->hookProc = hookProc;
1222     release_dc_ptr( dc );
1223     return TRUE;
1224 }
1225
1226
1227 /***********************************************************************
1228  *           GetDCHook   (GDI32.@)
1229  *
1230  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1231  */
1232 DWORD_PTR WINAPI GetDCHook( HDC hdc, DCHOOKPROC *proc )
1233 {
1234     DC *dc = get_dc_ptr( hdc );
1235     DWORD_PTR ret;
1236
1237     if (!dc) return 0;
1238     if (proc) *proc = dc->hookProc;
1239     ret = dc->dwHookData;
1240     release_dc_ptr( dc );
1241     return ret;
1242 }
1243
1244
1245 /***********************************************************************
1246  *           SetHookFlags   (GDI32.@)
1247  *
1248  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1249  */
1250 WORD WINAPI SetHookFlags( HDC hdc, WORD flags )
1251 {
1252     DC *dc = get_dc_obj( hdc );  /* not get_dc_ptr, this needs to work from any thread */
1253     LONG ret = 0;
1254
1255     if (!dc) return 0;
1256
1257     /* "Undocumented Windows" info is slightly confusing. */
1258
1259     TRACE("hDC %p, flags %04x\n",hdc,flags);
1260
1261     if (flags & DCHF_INVALIDATEVISRGN)
1262         ret = InterlockedExchange( &dc->dirty, 1 );
1263     else if (flags & DCHF_VALIDATEVISRGN || !flags)
1264         ret = InterlockedExchange( &dc->dirty, 0 );
1265
1266     GDI_ReleaseObj( hdc );
1267     return ret;
1268 }
1269
1270 /***********************************************************************
1271  *           SetICMMode    (GDI32.@)
1272  */
1273 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1274 {
1275 /*FIXME:  Assume that ICM is always off, and cannot be turned on */
1276     if (iEnableICM == ICM_OFF) return ICM_OFF;
1277     if (iEnableICM == ICM_ON) return 0;
1278     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1279     return 0;
1280 }
1281
1282 /***********************************************************************
1283  *           GetDeviceGammaRamp    (GDI32.@)
1284  */
1285 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1286 {
1287     BOOL ret = FALSE;
1288     DC *dc = get_dc_ptr( hDC );
1289
1290     if( dc )
1291     {
1292         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetDeviceGammaRamp );
1293         ret = physdev->funcs->pGetDeviceGammaRamp( physdev, ptr );
1294         release_dc_ptr( dc );
1295     }
1296     return ret;
1297 }
1298
1299 /***********************************************************************
1300  *           SetDeviceGammaRamp    (GDI32.@)
1301  */
1302 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1303 {
1304     BOOL ret = FALSE;
1305     DC *dc = get_dc_ptr( hDC );
1306
1307     if( dc )
1308     {
1309         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDeviceGammaRamp );
1310         ret = physdev->funcs->pSetDeviceGammaRamp( physdev, ptr );
1311         release_dc_ptr( dc );
1312     }
1313     return ret;
1314 }
1315
1316 /***********************************************************************
1317  *           GetColorSpace    (GDI32.@)
1318  */
1319 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1320 {
1321 /*FIXME    Need to to whatever GetColorSpace actually does */
1322     return 0;
1323 }
1324
1325 /***********************************************************************
1326  *           CreateColorSpaceA    (GDI32.@)
1327  */
1328 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1329 {
1330   FIXME( "stub\n" );
1331   return 0;
1332 }
1333
1334 /***********************************************************************
1335  *           CreateColorSpaceW    (GDI32.@)
1336  */
1337 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1338 {
1339   FIXME( "stub\n" );
1340   return 0;
1341 }
1342
1343 /***********************************************************************
1344  *           DeleteColorSpace     (GDI32.@)
1345  */
1346 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1347 {
1348   FIXME( "stub\n" );
1349
1350   return TRUE;
1351 }
1352
1353 /***********************************************************************
1354  *           SetColorSpace     (GDI32.@)
1355  */
1356 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1357 {
1358   FIXME( "stub\n" );
1359
1360   return hColorSpace;
1361 }
1362
1363 /***********************************************************************
1364  *           GetBoundsRect    (GDI32.@)
1365  */
1366 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1367 {
1368     UINT ret = 0;
1369     DC *dc = get_dc_ptr( hdc );
1370
1371     if ( !dc ) return 0;
1372
1373     if (rect)
1374     {
1375         *rect = dc->BoundsRect;
1376         ret = is_rect_empty( rect ) ? DCB_RESET : DCB_SET;
1377         DPtoLP( hdc, (POINT *)rect, 2 );
1378     }
1379     if (flags & DCB_RESET)
1380     {
1381         dc->BoundsRect.left   = 0;
1382         dc->BoundsRect.top    = 0;
1383         dc->BoundsRect.right  = 0;
1384         dc->BoundsRect.bottom = 0;
1385     }
1386     release_dc_ptr( dc );
1387     return ret;
1388 }
1389
1390
1391 /***********************************************************************
1392  *           SetBoundsRect    (GDI32.@)
1393  */
1394 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1395 {
1396     UINT ret;
1397     DC *dc;
1398
1399     if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
1400     if (!(dc = get_dc_ptr( hdc ))) return 0;
1401
1402     ret = ((dc->flags & DC_BOUNDS_ENABLE) ? DCB_ENABLE : DCB_DISABLE) |
1403            (is_rect_empty( &dc->BoundsRect ) ? DCB_RESET : DCB_SET);
1404
1405     if (flags & DCB_RESET)
1406     {
1407         dc->BoundsRect.left   = 0;
1408         dc->BoundsRect.top    = 0;
1409         dc->BoundsRect.right  = 0;
1410         dc->BoundsRect.bottom = 0;
1411     }
1412
1413     if ((flags & DCB_ACCUMULATE) && rect)
1414     {
1415         RECT rc = *rect;
1416
1417         LPtoDP( hdc, (POINT *)&rc, 2 );
1418         if (!is_rect_empty( &rc ))
1419         {
1420             if (!is_rect_empty( &dc->BoundsRect))
1421             {
1422                 dc->BoundsRect.left   = min( dc->BoundsRect.left, rc.left );
1423                 dc->BoundsRect.top    = min( dc->BoundsRect.top, rc.top );
1424                 dc->BoundsRect.right  = max( dc->BoundsRect.right, rc.right );
1425                 dc->BoundsRect.bottom = max( dc->BoundsRect.bottom, rc.bottom );
1426             }
1427             else dc->BoundsRect = rc;
1428         }
1429     }
1430
1431     if (flags & DCB_ENABLE) dc->flags |= DC_BOUNDS_ENABLE;
1432     if (flags & DCB_DISABLE) dc->flags &= ~DC_BOUNDS_ENABLE;
1433
1434     release_dc_ptr( dc );
1435     return ret;
1436 }
1437
1438
1439 /***********************************************************************
1440  *              GetRelAbs               (GDI32.@)
1441  */
1442 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1443 {
1444     INT ret = 0;
1445     DC *dc = get_dc_ptr( hdc );
1446     if (dc)
1447     {
1448         ret = dc->relAbsMode;
1449         release_dc_ptr( dc );
1450     }
1451     return ret;
1452 }
1453
1454
1455
1456
1457 /***********************************************************************
1458  *              GetBkMode (GDI32.@)
1459  */
1460 INT WINAPI GetBkMode( HDC hdc )
1461 {
1462     INT ret = 0;
1463     DC * dc = get_dc_ptr( hdc );
1464     if (dc)
1465     {
1466         ret = dc->backgroundMode;
1467         release_dc_ptr( dc );
1468     }
1469     return ret;
1470 }
1471
1472
1473 /***********************************************************************
1474  *              SetBkMode (GDI32.@)
1475  */
1476 INT WINAPI SetBkMode( HDC hdc, INT mode )
1477 {
1478     INT ret = 0;
1479     DC *dc;
1480
1481     if ((mode <= 0) || (mode > BKMODE_LAST))
1482     {
1483         SetLastError(ERROR_INVALID_PARAMETER);
1484         return 0;
1485     }
1486     if ((dc = get_dc_ptr( hdc )))
1487     {
1488         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetBkMode );
1489         mode = physdev->funcs->pSetBkMode( physdev, mode );
1490         if (mode)
1491         {
1492             ret = dc->backgroundMode;
1493             dc->backgroundMode = mode;
1494         }
1495         release_dc_ptr( dc );
1496     }
1497     return ret;
1498 }
1499
1500
1501 /***********************************************************************
1502  *              GetROP2 (GDI32.@)
1503  */
1504 INT WINAPI GetROP2( HDC hdc )
1505 {
1506     INT ret = 0;
1507     DC * dc = get_dc_ptr( hdc );
1508     if (dc)
1509     {
1510         ret = dc->ROPmode;
1511         release_dc_ptr( dc );
1512     }
1513     return ret;
1514 }
1515
1516
1517 /***********************************************************************
1518  *              SetROP2 (GDI32.@)
1519  */
1520 INT WINAPI SetROP2( HDC hdc, INT mode )
1521 {
1522     INT ret = 0;
1523     DC *dc;
1524
1525     if ((mode < R2_BLACK) || (mode > R2_WHITE))
1526     {
1527         SetLastError(ERROR_INVALID_PARAMETER);
1528         return 0;
1529     }
1530     if ((dc = get_dc_ptr( hdc )))
1531     {
1532         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetROP2 );
1533         mode = physdev->funcs->pSetROP2( physdev, mode );
1534         if (mode)
1535         {
1536             ret = dc->ROPmode;
1537             dc->ROPmode = mode;
1538         }
1539         release_dc_ptr( dc );
1540     }
1541     return ret;
1542 }
1543
1544
1545 /***********************************************************************
1546  *              SetRelAbs (GDI32.@)
1547  */
1548 INT WINAPI SetRelAbs( HDC hdc, INT mode )
1549 {
1550     INT ret = 0;
1551     DC *dc;
1552
1553     if ((mode != ABSOLUTE) && (mode != RELATIVE))
1554     {
1555         SetLastError(ERROR_INVALID_PARAMETER);
1556         return 0;
1557     }
1558     if ((dc = get_dc_ptr( hdc )))
1559     {
1560         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetRelAbs );
1561         mode = physdev->funcs->pSetRelAbs( physdev, mode );
1562         if (mode)
1563         {
1564             ret = dc->relAbsMode;
1565             dc->relAbsMode = mode;
1566         }
1567         release_dc_ptr( dc );
1568     }
1569     return ret;
1570 }
1571
1572
1573 /***********************************************************************
1574  *              GetPolyFillMode (GDI32.@)
1575  */
1576 INT WINAPI GetPolyFillMode( HDC hdc )
1577 {
1578     INT ret = 0;
1579     DC * dc = get_dc_ptr( hdc );
1580     if (dc)
1581     {
1582         ret = dc->polyFillMode;
1583         release_dc_ptr( dc );
1584     }
1585     return ret;
1586 }
1587
1588
1589 /***********************************************************************
1590  *              SetPolyFillMode (GDI32.@)
1591  */
1592 INT WINAPI SetPolyFillMode( HDC hdc, INT mode )
1593 {
1594     INT ret = 0;
1595     DC *dc;
1596
1597     if ((mode <= 0) || (mode > POLYFILL_LAST))
1598     {
1599         SetLastError(ERROR_INVALID_PARAMETER);
1600         return 0;
1601     }
1602     if ((dc = get_dc_ptr( hdc )))
1603     {
1604         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetPolyFillMode );
1605         mode = physdev->funcs->pSetPolyFillMode( physdev, mode );
1606         if (mode)
1607         {
1608             ret = dc->polyFillMode;
1609             dc->polyFillMode = mode;
1610         }
1611         release_dc_ptr( dc );
1612     }
1613     return ret;
1614 }
1615
1616
1617 /***********************************************************************
1618  *              GetStretchBltMode (GDI32.@)
1619  */
1620 INT WINAPI GetStretchBltMode( HDC hdc )
1621 {
1622     INT ret = 0;
1623     DC * dc = get_dc_ptr( hdc );
1624     if (dc)
1625     {
1626         ret = dc->stretchBltMode;
1627         release_dc_ptr( dc );
1628     }
1629     return ret;
1630 }
1631
1632
1633 /***********************************************************************
1634  *              SetStretchBltMode (GDI32.@)
1635  */
1636 INT WINAPI SetStretchBltMode( HDC hdc, INT mode )
1637 {
1638     INT ret = 0;
1639     DC *dc;
1640
1641     if ((mode <= 0) || (mode > MAXSTRETCHBLTMODE))
1642     {
1643         SetLastError(ERROR_INVALID_PARAMETER);
1644         return 0;
1645     }
1646     if ((dc = get_dc_ptr( hdc )))
1647     {
1648         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetStretchBltMode );
1649         mode = physdev->funcs->pSetStretchBltMode( physdev, mode );
1650         if (mode)
1651         {
1652             ret = dc->stretchBltMode;
1653             dc->stretchBltMode = mode;
1654         }
1655         release_dc_ptr( dc );
1656     }
1657     return ret;
1658 }
1659
1660
1661 /***********************************************************************
1662  *              GetMapMode (GDI32.@)
1663  */
1664 INT WINAPI GetMapMode( HDC hdc )
1665 {
1666     INT ret = 0;
1667     DC * dc = get_dc_ptr( hdc );
1668     if (dc)
1669     {
1670         ret = dc->MapMode;
1671         release_dc_ptr( dc );
1672     }
1673     return ret;
1674 }
1675
1676
1677 /***********************************************************************
1678  *              GetBrushOrgEx (GDI32.@)
1679  */
1680 BOOL WINAPI GetBrushOrgEx( HDC hdc, LPPOINT pt )
1681 {
1682     DC * dc = get_dc_ptr( hdc );
1683     if (!dc) return FALSE;
1684     pt->x = dc->brushOrgX;
1685     pt->y = dc->brushOrgY;
1686     release_dc_ptr( dc );
1687     return TRUE;
1688 }
1689
1690
1691 /***********************************************************************
1692  *              GetCurrentPositionEx (GDI32.@)
1693  */
1694 BOOL WINAPI GetCurrentPositionEx( HDC hdc, LPPOINT pt )
1695 {
1696     DC * dc = get_dc_ptr( hdc );
1697     if (!dc) return FALSE;
1698     pt->x = dc->CursPosX;
1699     pt->y = dc->CursPosY;
1700     release_dc_ptr( dc );
1701     return TRUE;
1702 }
1703
1704
1705 /***********************************************************************
1706  *              GetViewportExtEx (GDI32.@)
1707  */
1708 BOOL WINAPI GetViewportExtEx( HDC hdc, LPSIZE size )
1709 {
1710     DC * dc = get_dc_ptr( hdc );
1711     if (!dc) return FALSE;
1712     size->cx = dc->vportExtX;
1713     size->cy = dc->vportExtY;
1714     release_dc_ptr( dc );
1715     return TRUE;
1716 }
1717
1718
1719 /***********************************************************************
1720  *              GetViewportOrgEx (GDI32.@)
1721  */
1722 BOOL WINAPI GetViewportOrgEx( HDC hdc, LPPOINT pt )
1723 {
1724     DC * dc = get_dc_ptr( hdc );
1725     if (!dc) return FALSE;
1726     pt->x = dc->vportOrgX;
1727     pt->y = dc->vportOrgY;
1728     release_dc_ptr( dc );
1729     return TRUE;
1730 }
1731
1732
1733 /***********************************************************************
1734  *              GetWindowExtEx (GDI32.@)
1735  */
1736 BOOL WINAPI GetWindowExtEx( HDC hdc, LPSIZE size )
1737 {
1738     DC * dc = get_dc_ptr( hdc );
1739     if (!dc) return FALSE;
1740     size->cx = dc->wndExtX;
1741     size->cy = dc->wndExtY;
1742     release_dc_ptr( dc );
1743     return TRUE;
1744 }
1745
1746
1747 /***********************************************************************
1748  *              GetWindowOrgEx (GDI32.@)
1749  */
1750 BOOL WINAPI GetWindowOrgEx( HDC hdc, LPPOINT pt )
1751 {
1752     DC * dc = get_dc_ptr( hdc );
1753     if (!dc) return FALSE;
1754     pt->x = dc->wndOrgX;
1755     pt->y = dc->wndOrgY;
1756     release_dc_ptr( dc );
1757     return TRUE;
1758 }
1759
1760
1761 /***********************************************************************
1762  *           GetLayout    (GDI32.@)
1763  *
1764  * Gets left->right or right->left text layout flags of a dc.
1765  *
1766  */
1767 DWORD WINAPI GetLayout(HDC hdc)
1768 {
1769     DWORD layout = GDI_ERROR;
1770
1771     DC * dc = get_dc_ptr( hdc );
1772     if (dc)
1773     {
1774         layout = dc->layout;
1775         release_dc_ptr( dc );
1776     }
1777
1778     TRACE("hdc : %p, layout : %08x\n", hdc, layout);
1779
1780     return layout;
1781 }
1782
1783 /***********************************************************************
1784  *           SetLayout    (GDI32.@)
1785  *
1786  * Sets left->right or right->left text layout flags of a dc.
1787  *
1788  */
1789 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1790 {
1791     DWORD oldlayout = GDI_ERROR;
1792
1793     DC * dc = get_dc_ptr( hdc );
1794     if (dc)
1795     {
1796         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetLayout );
1797         layout = physdev->funcs->pSetLayout( physdev, layout );
1798         if (layout != GDI_ERROR)
1799         {
1800             oldlayout = dc->layout;
1801             dc->layout = layout;
1802             if (layout != oldlayout)
1803             {
1804                 if (layout & LAYOUT_RTL) dc->MapMode = MM_ANISOTROPIC;
1805                 DC_UpdateXforms( dc );
1806             }
1807         }
1808         release_dc_ptr( dc );
1809     }
1810
1811     TRACE("hdc : %p, old layout : %08x, new layout : %08x\n", hdc, oldlayout, layout);
1812
1813     return oldlayout;
1814 }
1815
1816 /***********************************************************************
1817  *           GetDCBrushColor    (GDI32.@)
1818  */
1819 COLORREF WINAPI GetDCBrushColor(HDC hdc)
1820 {
1821     DC *dc;
1822     COLORREF dcBrushColor = CLR_INVALID;
1823
1824     TRACE("hdc(%p)\n", hdc);
1825
1826     dc = get_dc_ptr( hdc );
1827     if (dc)
1828     {
1829         dcBrushColor = dc->dcBrushColor;
1830         release_dc_ptr( dc );
1831     }
1832
1833     return dcBrushColor;
1834 }
1835
1836 /***********************************************************************
1837  *           SetDCBrushColor    (GDI32.@)
1838  */
1839 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1840 {
1841     DC *dc;
1842     COLORREF oldClr = CLR_INVALID;
1843
1844     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
1845
1846     dc = get_dc_ptr( hdc );
1847     if (dc)
1848     {
1849         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDCBrushColor );
1850         crColor = physdev->funcs->pSetDCBrushColor( physdev, crColor );
1851         if (crColor != CLR_INVALID)
1852         {
1853             oldClr = dc->dcBrushColor;
1854             dc->dcBrushColor = crColor;
1855         }
1856         release_dc_ptr( dc );
1857     }
1858
1859     return oldClr;
1860 }
1861
1862 /***********************************************************************
1863  *           GetDCPenColor    (GDI32.@)
1864  */
1865 COLORREF WINAPI GetDCPenColor(HDC hdc)
1866 {
1867     DC *dc;
1868     COLORREF dcPenColor = CLR_INVALID;
1869
1870     TRACE("hdc(%p)\n", hdc);
1871
1872     dc = get_dc_ptr( hdc );
1873     if (dc)
1874     {
1875         dcPenColor = dc->dcPenColor;
1876         release_dc_ptr( dc );
1877     }
1878
1879     return dcPenColor;
1880 }
1881
1882 /***********************************************************************
1883  *           SetDCPenColor    (GDI32.@)
1884  */
1885 COLORREF WINAPI SetDCPenColor(HDC hdc, COLORREF crColor)
1886 {
1887     DC *dc;
1888     COLORREF oldClr = CLR_INVALID;
1889
1890     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
1891
1892     dc = get_dc_ptr( hdc );
1893     if (dc)
1894     {
1895         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDCPenColor );
1896         crColor = physdev->funcs->pSetDCPenColor( physdev, crColor );
1897         if (crColor != CLR_INVALID)
1898         {
1899             oldClr = dc->dcPenColor;
1900             dc->dcPenColor = crColor;
1901         }
1902         release_dc_ptr( dc );
1903     }
1904
1905     return oldClr;
1906 }
1907
1908 /***********************************************************************
1909  *           CancelDC    (GDI32.@)
1910  */
1911 BOOL WINAPI CancelDC(HDC hdc)
1912 {
1913     FIXME("stub\n");
1914     return TRUE;
1915 }
1916
1917 /*******************************************************************
1918  *      GetMiterLimit [GDI32.@]
1919  *
1920  *
1921  */
1922 BOOL WINAPI GetMiterLimit(HDC hdc, PFLOAT peLimit)
1923 {
1924     BOOL bRet = FALSE;
1925     DC *dc;
1926
1927     TRACE("(%p,%p)\n", hdc, peLimit);
1928
1929     dc = get_dc_ptr( hdc );
1930     if (dc)
1931     {
1932         if (peLimit)
1933             *peLimit = dc->miterLimit;
1934
1935         release_dc_ptr( dc );
1936         bRet = TRUE;
1937     }
1938     return bRet;
1939 }
1940
1941 /*******************************************************************
1942  *      SetMiterLimit [GDI32.@]
1943  *
1944  *
1945  */
1946 BOOL WINAPI SetMiterLimit(HDC hdc, FLOAT eNewLimit, PFLOAT peOldLimit)
1947 {
1948     BOOL bRet = FALSE;
1949     DC *dc;
1950
1951     TRACE("(%p,%f,%p)\n", hdc, eNewLimit, peOldLimit);
1952
1953     dc = get_dc_ptr( hdc );
1954     if (dc)
1955     {
1956         if (peOldLimit)
1957             *peOldLimit = dc->miterLimit;
1958         dc->miterLimit = eNewLimit;
1959         release_dc_ptr( dc );
1960         bRet = TRUE;
1961     }
1962     return bRet;
1963 }
1964
1965 /*******************************************************************
1966  *      GdiIsMetaPrintDC [GDI32.@]
1967  */
1968 BOOL WINAPI GdiIsMetaPrintDC(HDC hdc)
1969 {
1970     FIXME("%p\n", hdc);
1971     return FALSE;
1972 }
1973
1974 /*******************************************************************
1975  *      GdiIsMetaFileDC [GDI32.@]
1976  */
1977 BOOL WINAPI GdiIsMetaFileDC(HDC hdc)
1978 {
1979     TRACE("%p\n", hdc);
1980
1981     switch( GetObjectType( hdc ) )
1982     {
1983     case OBJ_METADC:
1984     case OBJ_ENHMETADC:
1985         return TRUE;
1986     }
1987     return FALSE;
1988 }
1989
1990 /*******************************************************************
1991  *      GdiIsPlayMetafileDC [GDI32.@]
1992  */
1993 BOOL WINAPI GdiIsPlayMetafileDC(HDC hdc)
1994 {
1995     FIXME("%p\n", hdc);
1996     return FALSE;
1997 }