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              = NULL;
  83     dc->physDev             = &dc->nulldrv;
  84     dc->thread              = GetCurrentThreadId();
  85     dc->refcount            = 1;
  86     dc->dirty               = 0;
  87     dc->saveLevel           = 0;
  88     dc->saved_dc            = 0;
  89     dc->dwHookData          = 0;
  90     dc->hookProc            = NULL;
  91     dc->wndOrgX             = 0;
  92     dc->wndOrgY             = 0;
  93     dc->wndExtX             = 1;
  94     dc->wndExtY             = 1;
  95     dc->vportOrgX           = 0;
  96     dc->vportOrgY           = 0;
  97     dc->vportExtX           = 1;
  98     dc->vportExtY           = 1;
  99     dc->miterLimit          = 10.0f; /* 10.0 is the default, from MSDN */
 100     dc->flags               = 0;
 101     dc->layout              = 0;
 102     dc->hClipRgn            = 0;
 103     dc->hMetaRgn            = 0;
 104     dc->hMetaClipRgn        = 0;
 105     dc->hVisRgn             = 0;
 106     dc->hPen                = GDI_inc_ref_count( GetStockObject( BLACK_PEN ));
 107     dc->hBrush              = GDI_inc_ref_count( GetStockObject( WHITE_BRUSH ));
 108     dc->hFont               = GDI_inc_ref_count( GetStockObject( SYSTEM_FONT ));
 109     dc->hBitmap             = 0;
 110     dc->hDevice             = 0;
 111     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
 112     dc->gdiFont             = 0;
 113     dc->font_code_page      = CP_ACP;
 114     dc->ROPmode             = R2_COPYPEN;
 115     dc->polyFillMode        = ALTERNATE;
 116     dc->stretchBltMode      = BLACKONWHITE;
 117     dc->relAbsMode          = ABSOLUTE;
 118     dc->backgroundMode      = OPAQUE;
 119     dc->backgroundColor     = RGB( 255, 255, 255 );
 120     dc->dcBrushColor        = RGB( 255, 255, 255 );
 121     dc->dcPenColor          = RGB( 0, 0, 0 );
 122     dc->textColor           = RGB( 0, 0, 0 );
 123     dc->brushOrgX           = 0;
 124     dc->brushOrgY           = 0;
 125     dc->mapperFlags         = 0;
 126     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
 127     dc->charExtra           = 0;
 128     dc->breakExtra          = 0;
 129     dc->breakRem            = 0;
 130     dc->MapMode             = MM_TEXT;
 131     dc->GraphicsMode        = GM_COMPATIBLE;
 132     dc->pAbortProc          = NULL;
 133     dc->CursPosX            = 0;
 134     dc->CursPosY            = 0;
 135     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 136     dc->xformWorld2Wnd.eM11 = 1.0f;
 137     dc->xformWorld2Wnd.eM12 = 0.0f;
 138     dc->xformWorld2Wnd.eM21 = 0.0f;
 139     dc->xformWorld2Wnd.eM22 = 1.0f;
 140     dc->xformWorld2Wnd.eDx  = 0.0f;
 141     dc->xformWorld2Wnd.eDy  = 0.0f;
 142     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 143     dc->xformVport2World    = dc->xformWorld2Wnd;
 144     dc->vport2WorldValid    = TRUE;
 145     dc->BoundsRect.left     = 0;
 146     dc->BoundsRect.top      = 0;
 147     dc->BoundsRect.right    = 0;
 148     dc->BoundsRect.bottom   = 0;
 149     PATH_InitGdiPath(&dc->path);
 150
 151     if (!(dc->hSelf = alloc_gdi_handle( &dc->header, magic, &dc_funcs )))
 152     {
 153         HeapFree( GetProcessHeap(), 0, dc );
 154         return NULL;
 155     }
 156     dc->nulldrv.hdc = dc->hSelf;
 157     return dc;
 158 }
 159
 160
 161
 162 /***********************************************************************
 163  *           free_dc_state
 164  */
 165 static void free_dc_state( DC *dc )
 166 {
 167     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 168     if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 169     if (dc->hMetaClipRgn) DeleteObject( dc->hMetaClipRgn );
 170     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 171     PATH_DestroyGdiPath( &dc->path );
 172     HeapFree( GetProcessHeap(), 0, dc );
 173 }
 174
 175
 176 /***********************************************************************
 177  *           free_dc_ptr
 178  */
 179 void free_dc_ptr( DC *dc )
 180 {
 181     assert( dc->refcount == 1 );
 182
 183     while (dc->physDev != &dc->nulldrv)
 184     {
 185         PHYSDEV physdev = pop_dc_driver( &dc->physDev );
 186         physdev->funcs->pDeleteDC( physdev );
 187         if (physdev == dc->dibdrv) dc->dibdrv = NULL;
 188     }
 189     if (dc->dibdrv) dc->dibdrv->funcs->pDeleteDC( dc->dibdrv );
 190     free_gdi_handle( dc->hSelf );
 191     free_dc_state( dc );
 192 }
 193
 194
 195 /***********************************************************************
 196  *           get_dc_ptr
 197  *
 198  * Retrieve a DC pointer but release the GDI lock.
 199  */
 200 DC *get_dc_ptr( HDC hdc )
 201 {
 202     DC *dc = get_dc_obj( hdc );
 203     if (!dc) return NULL;
 204
 205     if (!InterlockedCompareExchange( &dc->refcount, 1, 0 ))
 206     {
 207         dc->thread = GetCurrentThreadId();
 208     }
 209     else if (dc->thread != GetCurrentThreadId())
 210     {
 211         WARN( "dc %p belongs to thread %04x\n", hdc, dc->thread );
 212         GDI_ReleaseObj( hdc );
 213         return NULL;
 214     }
 215     else InterlockedIncrement( &dc->refcount );
 216
 217     GDI_ReleaseObj( hdc );
 218     return dc;
 219 }
 220
 221
 222 /***********************************************************************
 223  *           release_dc_ptr
 224  */
 225 void release_dc_ptr( DC *dc )
 226 {
 227     LONG ref;
 228
 229     dc->thread = 0;
 230     ref = InterlockedDecrement( &dc->refcount );
 231     assert( ref >= 0 );
 232     if (ref) dc->thread = GetCurrentThreadId();  /* we still own it */
 233 }
 234
 235
 236 /***********************************************************************
 237  *           update_dc
 238  *
 239  * Make sure the DC vis region is up to date.
 240  * This function may call up to USER so the GDI lock should _not_
 241  * be held when calling it.
 242  */
 243 void update_dc( DC *dc )
 244 {
 245     if (InterlockedExchange( &dc->dirty, 0 ) && dc->hookProc)
 246         dc->hookProc( dc->hSelf, DCHC_INVALIDVISRGN, dc->dwHookData, 0 );
 247 }
 248
 249
 250 /***********************************************************************
 251  *           DC_DeleteObject
 252  */
 253 static BOOL DC_DeleteObject( HGDIOBJ handle )
 254 {
 255     return DeleteDC( handle );
 256 }
 257
 258
 259 /***********************************************************************
 260  *           DC_InitDC
 261  *
 262  * Setup device-specific DC values for a newly created DC.
 263  */
 264 void DC_InitDC( DC* dc )
 265 {
 266     PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRealizeDefaultPalette );
 267     physdev->funcs->pRealizeDefaultPalette( physdev );
 268     SetTextColor( dc->hSelf, dc->textColor );
 269     SetBkColor( dc->hSelf, dc->backgroundColor );
 270     SelectObject( dc->hSelf, dc->hPen );
 271     SelectObject( dc->hSelf, dc->hBrush );
 272     SelectObject( dc->hSelf, dc->hFont );
 273     CLIPPING_UpdateGCRegion( dc );
 274     SetVirtualResolution( dc->hSelf, 0, 0, 0, 0 );
 275 }
 276
 277
 278 /***********************************************************************
 279  *           DC_InvertXform
 280  *
 281  * Computes the inverse of the transformation xformSrc and stores it to
 282  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 283  * is singular.
 284  */
 285 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 286 {
 287     double determinant;
 288
 289     determinant = xformSrc->eM11*xformSrc->eM22 -
 290         xformSrc->eM12*xformSrc->eM21;
 291     if (determinant > -1e-12 && determinant < 1e-12)
 292         return FALSE;
 293
 294     xformDest->eM11 =  xformSrc->eM22 / determinant;
 295     xformDest->eM12 = -xformSrc->eM12 / determinant;
 296     xformDest->eM21 = -xformSrc->eM21 / determinant;
 297     xformDest->eM22 =  xformSrc->eM11 / determinant;
 298     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 299                        xformSrc->eDy * xformDest->eM21;
 300     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 301                        xformSrc->eDy * xformDest->eM22;
 302
 303     return TRUE;
 304 }
 305
 306 /* Construct a transformation to do the window-to-viewport conversion */
 307 static void construct_window_to_viewport(DC *dc, XFORM *xform)
 308 {
 309     double scaleX, scaleY;
 310     scaleX = (double)dc->vportExtX / (double)dc->wndExtX;
 311     scaleY = (double)dc->vportExtY / (double)dc->wndExtY;
 312
 313     if (dc->layout & LAYOUT_RTL) scaleX = -scaleX;
 314     xform->eM11 = scaleX;
 315     xform->eM12 = 0.0;
 316     xform->eM21 = 0.0;
 317     xform->eM22 = scaleY;
 318     xform->eDx  = (double)dc->vportOrgX - scaleX * (double)dc->wndOrgX;
 319     xform->eDy  = (double)dc->vportOrgY - scaleY * (double)dc->wndOrgY;
 320     if (dc->layout & LAYOUT_RTL) xform->eDx = dc->vis_rect.right - dc->vis_rect.left - 1 - xform->eDx;
 321 }
 322
 323 /***********************************************************************
 324  *           DC_UpdateXforms
 325  *
 326  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 327  * fields of the specified DC by creating a transformation that
 328  * represents the current mapping mode and combining it with the DC's
 329  * world transform. This function should be called whenever the
 330  * parameters associated with the mapping mode (window and viewport
 331  * extents and origins) or the world transform change.
 332  */
 333 void DC_UpdateXforms( DC *dc )
 334 {
 335     XFORM xformWnd2Vport, oldworld2vport;
 336
 337     construct_window_to_viewport(dc, &xformWnd2Vport);
 338
 339     oldworld2vport = dc->xformWorld2Vport;
 340     /* Combine with the world transformation */
 341     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 342         &xformWnd2Vport );
 343
 344     /* Create inverse of world-to-viewport transformation */
 345     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 346         &dc->xformVport2World );
 347
 348     /* Reselect the font and pen back into the dc so that the size
 349        gets updated. */
 350     if (memcmp(&oldworld2vport, &dc->xformWorld2Vport, sizeof(oldworld2vport)) &&
 351         !GdiIsMetaFileDC(dc->hSelf))
 352     {
 353         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
 354         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_PEN));
 355     }
 356 }
 357
 358
 359 /***********************************************************************
 360  *           nulldrv_SaveDC
 361  */
 362 INT nulldrv_SaveDC( PHYSDEV dev )
 363 {
 364     DC *newdc, *dc = get_nulldrv_dc( dev );
 365
 366     if (!(newdc = HeapAlloc( GetProcessHeap(), 0, sizeof(*newdc )))) return 0;
 367     newdc->flags            = dc->flags;
 368     newdc->layout           = dc->layout;
 369     newdc->hPen             = dc->hPen;
 370     newdc->hBrush           = dc->hBrush;
 371     newdc->hFont            = dc->hFont;
 372     newdc->hBitmap          = dc->hBitmap;
 373     newdc->hDevice          = dc->hDevice;
 374     newdc->hPalette         = dc->hPalette;
 375     newdc->ROPmode          = dc->ROPmode;
 376     newdc->polyFillMode     = dc->polyFillMode;
 377     newdc->stretchBltMode   = dc->stretchBltMode;
 378     newdc->relAbsMode       = dc->relAbsMode;
 379     newdc->backgroundMode   = dc->backgroundMode;
 380     newdc->backgroundColor  = dc->backgroundColor;
 381     newdc->textColor        = dc->textColor;
 382     newdc->dcBrushColor     = dc->dcBrushColor;
 383     newdc->dcPenColor       = dc->dcPenColor;
 384     newdc->brushOrgX        = dc->brushOrgX;
 385     newdc->brushOrgY        = dc->brushOrgY;
 386     newdc->mapperFlags      = dc->mapperFlags;
 387     newdc->textAlign        = dc->textAlign;
 388     newdc->charExtra        = dc->charExtra;
 389     newdc->breakExtra       = dc->breakExtra;
 390     newdc->breakRem         = dc->breakRem;
 391     newdc->MapMode          = dc->MapMode;
 392     newdc->GraphicsMode     = dc->GraphicsMode;
 393     newdc->CursPosX         = dc->CursPosX;
 394     newdc->CursPosY         = dc->CursPosY;
 395     newdc->ArcDirection     = dc->ArcDirection;
 396     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 397     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 398     newdc->xformVport2World = dc->xformVport2World;
 399     newdc->vport2WorldValid = dc->vport2WorldValid;
 400     newdc->wndOrgX          = dc->wndOrgX;
 401     newdc->wndOrgY          = dc->wndOrgY;
 402     newdc->wndExtX          = dc->wndExtX;
 403     newdc->wndExtY          = dc->wndExtY;
 404     newdc->vportOrgX        = dc->vportOrgX;
 405     newdc->vportOrgY        = dc->vportOrgY;
 406     newdc->vportExtX        = dc->vportExtX;
 407     newdc->vportExtY        = dc->vportExtY;
 408     newdc->virtual_res      = dc->virtual_res;
 409     newdc->virtual_size     = dc->virtual_size;
 410     newdc->BoundsRect       = dc->BoundsRect;
 411     newdc->gdiFont          = dc->gdiFont;
 412
 413     PATH_InitGdiPath( &newdc->path );
 414
 415     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 416
 417     newdc->hVisRgn      = 0;
 418     newdc->hClipRgn     = 0;
 419     newdc->hMetaRgn     = 0;
 420     newdc->hMetaClipRgn = 0;
 421     if (dc->hClipRgn)
 422     {
 423         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 424         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 425     }
 426     if (dc->hMetaRgn)
 427     {
 428         newdc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 429         CombineRgn( newdc->hMetaRgn, dc->hMetaRgn, 0, RGN_COPY );
 430     }
 431
 432     /* don't bother recomputing hMetaClipRgn, we'll do that in SetDCState */
 433
 434     if (!PATH_AssignGdiPath( &newdc->path, &dc->path ))
 435     {
 436         release_dc_ptr( dc );
 437         free_dc_state( newdc );
 438         return 0;
 439     }
 440
 441     newdc->saved_dc = dc->saved_dc;
 442     dc->saved_dc = newdc;
 443     return ++dc->saveLevel;
 444 }
 445
 446
 447 /***********************************************************************
 448  *           restore_dc_state
 449  */
 450 BOOL nulldrv_RestoreDC( PHYSDEV dev, INT level )
 451 {
 452     DC *dcs, *first_dcs, *dc = get_nulldrv_dc( dev );
 453     INT save_level;
 454
 455     /* find the state level to restore */
 456
 457     if (abs(level) > dc->saveLevel || level == 0) return FALSE;
 458     if (level < 0) level = dc->saveLevel + level + 1;
 459     first_dcs = dc->saved_dc;
 460     for (dcs = first_dcs, save_level = dc->saveLevel; save_level > level; save_level--)
 461         dcs = dcs->saved_dc;
 462
 463     /* restore the state */
 464
 465     if (!PATH_AssignGdiPath( &dc->path, &dcs->path )) return FALSE;
 466
 467     dc->flags            = dcs->flags;
 468     dc->layout           = dcs->layout;
 469     dc->hDevice          = dcs->hDevice;
 470     dc->ROPmode          = dcs->ROPmode;
 471     dc->polyFillMode     = dcs->polyFillMode;
 472     dc->stretchBltMode   = dcs->stretchBltMode;
 473     dc->relAbsMode       = dcs->relAbsMode;
 474     dc->backgroundMode   = dcs->backgroundMode;
 475     dc->backgroundColor  = dcs->backgroundColor;
 476     dc->textColor        = dcs->textColor;
 477     dc->dcBrushColor     = dcs->dcBrushColor;
 478     dc->dcPenColor       = dcs->dcPenColor;
 479     dc->brushOrgX        = dcs->brushOrgX;
 480     dc->brushOrgY        = dcs->brushOrgY;
 481     dc->mapperFlags      = dcs->mapperFlags;
 482     dc->textAlign        = dcs->textAlign;
 483     dc->charExtra        = dcs->charExtra;
 484     dc->breakExtra       = dcs->breakExtra;
 485     dc->breakRem         = dcs->breakRem;
 486     dc->MapMode          = dcs->MapMode;
 487     dc->GraphicsMode     = dcs->GraphicsMode;
 488     dc->CursPosX         = dcs->CursPosX;
 489     dc->CursPosY         = dcs->CursPosY;
 490     dc->ArcDirection     = dcs->ArcDirection;
 491     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 492     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 493     dc->xformVport2World = dcs->xformVport2World;
 494     dc->vport2WorldValid = dcs->vport2WorldValid;
 495     dc->BoundsRect       = dcs->BoundsRect;
 496
 497     dc->wndOrgX          = dcs->wndOrgX;
 498     dc->wndOrgY          = dcs->wndOrgY;
 499     dc->wndExtX          = dcs->wndExtX;
 500     dc->wndExtY          = dcs->wndExtY;
 501     dc->vportOrgX        = dcs->vportOrgX;
 502     dc->vportOrgY        = dcs->vportOrgY;
 503     dc->vportExtX        = dcs->vportExtX;
 504     dc->vportExtY        = dcs->vportExtY;
 505     dc->virtual_res      = dcs->virtual_res;
 506     dc->virtual_size     = dcs->virtual_size;
 507
 508     if (dcs->hClipRgn)
 509     {
 510         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 511         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 512     }
 513     else
 514     {
 515         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 516         dc->hClipRgn = 0;
 517     }
 518     if (dcs->hMetaRgn)
 519     {
 520         if (!dc->hMetaRgn) dc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 521         CombineRgn( dc->hMetaRgn, dcs->hMetaRgn, 0, RGN_COPY );
 522     }
 523     else
 524     {
 525         if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 526         dc->hMetaRgn = 0;
 527     }
 528     DC_UpdateXforms( dc );
 529     CLIPPING_UpdateGCRegion( dc );
 530
 531     SelectObject( dev->hdc, dcs->hBitmap );
 532     SelectObject( dev->hdc, dcs->hBrush );
 533     SelectObject( dev->hdc, dcs->hFont );
 534     SelectObject( dev->hdc, dcs->hPen );
 535     SetBkColor( dev->hdc, dcs->backgroundColor);
 536     SetTextColor( dev->hdc, dcs->textColor);
 537     GDISelectPalette( dev->hdc, dcs->hPalette, FALSE );
 538
 539     dc->saved_dc  = dcs->saved_dc;
 540     dcs->saved_dc = 0;
 541     dc->saveLevel = save_level - 1;
 542
 543     /* now destroy all the saved DCs */
 544
 545     while (first_dcs)
 546     {
 547         DC *next = first_dcs->saved_dc;
 548         free_dc_state( first_dcs );
 549         first_dcs = next;
 550     }
 551     return TRUE;
 552 }
 553
 554
 555 /***********************************************************************
 556  *           SaveDC    (GDI32.@)
 557  */
 558 INT WINAPI SaveDC( HDC hdc )
 559 {
 560     DC * dc;
 561     INT ret = 0;
 562
 563     if ((dc = get_dc_ptr( hdc )))
 564     {
 565         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSaveDC );
 566         ret = physdev->funcs->pSaveDC( physdev );
 567         release_dc_ptr( dc );
 568     }
 569     return ret;
 570 }
 571
 572
 573 /***********************************************************************
 574  *           RestoreDC    (GDI32.@)
 575  */
 576 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 577 {
 578     DC *dc;
 579     BOOL success = FALSE;
 580
 581     TRACE("%p %d\n", hdc, level );
 582     if ((dc = get_dc_ptr( hdc )))
 583     {
 584         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRestoreDC );
 585         update_dc( dc );
 586         success = physdev->funcs->pRestoreDC( physdev, level );
 587         release_dc_ptr( dc );
 588     }
 589     return success;
 590 }
 591
 592
 593 /***********************************************************************
 594  *           CreateDCW    (GDI32.@)
 595  */
 596 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 597                       const DEVMODEW *initData )
 598 {
 599     HDC hdc;
 600     DC * dc;
 601     const DC_FUNCTIONS *funcs;
 602     WCHAR buf[300];
 603
 604     GDI_CheckNotLock();
 605
 606     if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
 607     {
 608         if (!driver)
 609         {
 610             ERR( "no device found for %s\n", debugstr_w(device) );
 611             return 0;
 612         }
 613         strcpyW(buf, driver);
 614     }
 615
 616     if (!(funcs = DRIVER_load_driver( buf )))
 617     {
 618         ERR( "no driver found for %s\n", debugstr_w(buf) );
 619         return 0;
 620     }
 621     if (!(dc = alloc_dc_ptr( OBJ_DC ))) goto error;
 622     hdc = dc->hSelf;
 623
 624     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 625     if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error;
 626
 627     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 628           debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
 629
 630     if (funcs->pCreateDC)
 631     {
 632         if (!funcs->pCreateDC( &dc->physDev, buf, device, output, initData ))
 633         {
 634             WARN("creation aborted by device\n" );
 635             goto error;
 636         }
 637     }
 638
 639     dc->vis_rect.left   = 0;
 640     dc->vis_rect.top    = 0;
 641     dc->vis_rect.right  = GetDeviceCaps( hdc, DESKTOPHORZRES );
 642     dc->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
 643     SetRectRgn(dc->hVisRgn, dc->vis_rect.left, dc->vis_rect.top, dc->vis_rect.right, dc->vis_rect.bottom);
 644
 645     DC_InitDC( dc );
 646     release_dc_ptr( dc );
 647     return hdc;
 648
 649 error:
 650     if (dc) free_dc_ptr( dc );
 651     return 0;
 652 }
 653
 654
 655 /***********************************************************************
 656  *           CreateDCA    (GDI32.@)
 657  */
 658 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 659                       const DEVMODEA *initData )
 660 {
 661     UNICODE_STRING driverW, deviceW, outputW;
 662     DEVMODEW *initDataW;
 663     HDC ret;
 664
 665     if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
 666     else driverW.Buffer = NULL;
 667
 668     if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
 669     else deviceW.Buffer = NULL;
 670
 671     if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
 672     else outputW.Buffer = NULL;
 673
 674     initDataW = NULL;
 675     if (initData)
 676     {
 677         /* don't convert initData for DISPLAY driver, it's not used */
 678         if (!driverW.Buffer || strcmpiW( driverW.Buffer, displayW ))
 679             initDataW = GdiConvertToDevmodeW(initData);
 680     }
 681
 682     ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
 683
 684     RtlFreeUnicodeString(&driverW);
 685     RtlFreeUnicodeString(&deviceW);
 686     RtlFreeUnicodeString(&outputW);
 687     HeapFree(GetProcessHeap(), 0, initDataW);
 688     return ret;
 689 }
 690
 691
 692 /***********************************************************************
 693  *           CreateICA    (GDI32.@)
 694  */
 695 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 696                           const DEVMODEA* initData )
 697 {
 698       /* Nothing special yet for ICs */
 699     return CreateDCA( driver, device, output, initData );
 700 }
 701
 702
 703 /***********************************************************************
 704  *           CreateICW    (GDI32.@)
 705  */
 706 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 707                           const DEVMODEW* initData )
 708 {
 709       /* Nothing special yet for ICs */
 710     return CreateDCW( driver, device, output, initData );
 711 }
 712
 713
 714 /***********************************************************************
 715  *           CreateCompatibleDC   (GDI32.@)
 716  */
 717 HDC WINAPI CreateCompatibleDC( HDC hdc )
 718 {
 719     DC *dc, *origDC;
 720     HDC ret;
 721     const struct gdi_dc_funcs *funcs = &null_driver;
 722     PHYSDEV physDev = NULL;
 723
 724     GDI_CheckNotLock();
 725
 726     if (hdc)
 727     {
 728         if (!(origDC = get_dc_ptr( hdc ))) return 0;
 729         physDev = GET_DC_PHYSDEV( origDC, pCreateCompatibleDC );
 730         funcs = physDev->funcs;
 731         release_dc_ptr( origDC );
 732     }
 733
 734     if (!(dc = alloc_dc_ptr( OBJ_MEMDC ))) goto error;
 735
 736     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 737
 738     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 739     dc->vis_rect.left   = 0;
 740     dc->vis_rect.top    = 0;
 741     dc->vis_rect.right  = 1;
 742     dc->vis_rect.bottom = 1;
 743     if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error;   /* default bitmap is 1x1 */
 744
 745     ret = dc->hSelf;
 746
 747     if (!funcs->pCreateCompatibleDC( physDev, &dc->physDev ))
 748     {
 749         WARN("creation aborted by device\n");
 750         goto error;
 751     }
 752     DC_InitDC( dc );
 753     release_dc_ptr( dc );
 754     return ret;
 755
 756 error:
 757     if (dc) free_dc_ptr( dc );
 758     return 0;
 759 }
 760
 761
 762 /***********************************************************************
 763  *           DeleteDC    (GDI32.@)
 764  */
 765 BOOL WINAPI DeleteDC( HDC hdc )
 766 {
 767     DC * dc;
 768
 769     TRACE("%p\n", hdc );
 770
 771     GDI_CheckNotLock();
 772
 773     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
 774     if (dc->refcount != 1)
 775     {
 776         FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
 777         release_dc_ptr( dc );
 778         return FALSE;
 779     }
 780
 781     /* Call hook procedure to check whether is it OK to delete this DC */
 782     if (dc->hookProc && !dc->hookProc( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ))
 783     {
 784         release_dc_ptr( dc );
 785         return TRUE;
 786     }
 787
 788     while (dc->saveLevel)
 789     {
 790         DC *dcs = dc->saved_dc;
 791         dc->saved_dc = dcs->saved_dc;
 792         dc->saveLevel--;
 793         free_dc_state( dcs );
 794     }
 795
 796     SelectObject( hdc, GetStockObject(BLACK_PEN) );
 797     SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 798     SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 799     SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 800
 801     free_dc_ptr( dc );
 802     return TRUE;
 803 }
 804
 805
 806 /***********************************************************************
 807  *           ResetDCW    (GDI32.@)
 808  */
 809 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 810 {
 811     DC *dc;
 812     HDC ret = 0;
 813
 814     if ((dc = get_dc_ptr( hdc )))
 815     {
 816         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pResetDC );
 817         ret = physdev->funcs->pResetDC( physdev, devmode );
 818         if (ret)  /* reset the visible region */
 819         {
 820             dc->dirty = 0;
 821             dc->vis_rect.left   = 0;
 822             dc->vis_rect.top    = 0;
 823             dc->vis_rect.right  = GetDeviceCaps( hdc, DESKTOPHORZRES );
 824             dc->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
 825             SetRectRgn( dc->hVisRgn, dc->vis_rect.left, dc->vis_rect.top,
 826                         dc->vis_rect.right, dc->vis_rect.bottom );
 827             CLIPPING_UpdateGCRegion( dc );
 828         }
 829         release_dc_ptr( dc );
 830     }
 831     return ret;
 832 }
 833
 834
 835 /***********************************************************************
 836  *           ResetDCA    (GDI32.@)
 837  */
 838 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 839 {
 840     DEVMODEW *devmodeW;
 841     HDC ret;
 842
 843     if (devmode) devmodeW = GdiConvertToDevmodeW(devmode);
 844     else devmodeW = NULL;
 845
 846     ret = ResetDCW(hdc, devmodeW);
 847
 848     HeapFree(GetProcessHeap(), 0, devmodeW);
 849     return ret;
 850 }
 851
 852
 853 /***********************************************************************
 854  *           GetDeviceCaps    (GDI32.@)
 855  */
 856 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 857 {
 858     DC *dc;
 859     INT ret = 0;
 860
 861     if ((dc = get_dc_ptr( hdc )))
 862     {
 863         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetDeviceCaps );
 864         ret = physdev->funcs->pGetDeviceCaps( physdev, cap );
 865         release_dc_ptr( dc );
 866     }
 867     return ret;
 868 }
 869
 870
 871 /***********************************************************************
 872  *              GetBkColor (GDI32.@)
 873  */
 874 COLORREF WINAPI GetBkColor( HDC hdc )
 875 {
 876     COLORREF ret = 0;
 877     DC * dc = get_dc_ptr( hdc );
 878     if (dc)
 879     {
 880         ret = dc->backgroundColor;
 881         release_dc_ptr( dc );
 882     }
 883     return ret;
 884 }
 885
 886
 887 /***********************************************************************
 888  *           SetBkColor    (GDI32.@)
 889  */
 890 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 891 {
 892     COLORREF ret = CLR_INVALID;
 893     DC * dc = get_dc_ptr( hdc );
 894
 895     TRACE("hdc=%p color=0x%08x\n", hdc, color);
 896
 897     if (dc)
 898     {
 899         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetBkColor );
 900         color = physdev->funcs->pSetBkColor( physdev, color );
 901         if (color != CLR_INVALID)
 902         {
 903             ret = dc->backgroundColor;
 904             dc->backgroundColor = color;
 905         }
 906         release_dc_ptr( dc );
 907     }
 908     return ret;
 909 }
 910
 911
 912 /***********************************************************************
 913  *              GetTextColor (GDI32.@)
 914  */
 915 COLORREF WINAPI GetTextColor( HDC hdc )
 916 {
 917     COLORREF ret = 0;
 918     DC * dc = get_dc_ptr( hdc );
 919     if (dc)
 920     {
 921         ret = dc->textColor;
 922         release_dc_ptr( dc );
 923     }
 924     return ret;
 925 }
 926
 927
 928 /***********************************************************************
 929  *           SetTextColor    (GDI32.@)
 930  */
 931 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 932 {
 933     COLORREF ret = CLR_INVALID;
 934     DC * dc = get_dc_ptr( hdc );
 935
 936     TRACE(" hdc=%p color=0x%08x\n", hdc, color);
 937
 938     if (dc)
 939     {
 940         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetTextColor );
 941         color = physdev->funcs->pSetTextColor( physdev, color );
 942         if (color != CLR_INVALID)
 943         {
 944             ret = dc->textColor;
 945             dc->textColor = color;
 946         }
 947         release_dc_ptr( dc );
 948     }
 949     return ret;
 950 }
 951
 952
 953 /***********************************************************************
 954  *              GetTextAlign (GDI32.@)
 955  */
 956 UINT WINAPI GetTextAlign( HDC hdc )
 957 {
 958     UINT ret = 0;
 959     DC * dc = get_dc_ptr( hdc );
 960     if (dc)
 961     {
 962         ret = dc->textAlign;
 963         release_dc_ptr( dc );
 964     }
 965     return ret;
 966 }
 967
 968
 969 /***********************************************************************
 970  *           SetTextAlign    (GDI32.@)
 971  */
 972 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 973 {
 974     UINT ret = GDI_ERROR;
 975     DC *dc = get_dc_ptr( hdc );
 976
 977     TRACE("hdc=%p align=%d\n", hdc, align);
 978
 979     if (dc)
 980     {
 981         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetTextAlign );
 982         align = physdev->funcs->pSetTextAlign( physdev, align );
 983         if (align != GDI_ERROR)
 984         {
 985             ret = dc->textAlign;
 986             dc->textAlign = align;
 987         }
 988         release_dc_ptr( dc );
 989     }
 990     return ret;
 991 }
 992
 993 /***********************************************************************
 994  *           GetDCOrgEx  (GDI32.@)
 995  */
 996 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 997 {
 998     DC * dc;
 999
1000     if (!lpp) return FALSE;
1001     if (!(dc = get_dc_ptr( hDC ))) return FALSE;
1002     lpp->x = dc->vis_rect.left;
1003     lpp->y = dc->vis_rect.top;
1004     release_dc_ptr( dc );
1005     return TRUE;
1006 }
1007
1008
1009 /***********************************************************************
1010  *              GetGraphicsMode (GDI32.@)
1011  */
1012 INT WINAPI GetGraphicsMode( HDC hdc )
1013 {
1014     INT ret = 0;
1015     DC * dc = get_dc_ptr( hdc );
1016     if (dc)
1017     {
1018         ret = dc->GraphicsMode;
1019         release_dc_ptr( dc );
1020     }
1021     return ret;
1022 }
1023
1024
1025 /***********************************************************************
1026  *           SetGraphicsMode    (GDI32.@)
1027  */
1028 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
1029 {
1030     INT ret = 0;
1031     DC *dc = get_dc_ptr( hdc );
1032
1033     /* One would think that setting the graphics mode to GM_COMPATIBLE
1034      * would also reset the world transformation matrix to the unity
1035      * matrix. However, in Windows, this is not the case. This doesn't
1036      * make a lot of sense to me, but that's the way it is.
1037      */
1038     if (!dc) return 0;
1039     if ((mode > 0) && (mode <= GM_LAST))
1040     {
1041         ret = dc->GraphicsMode;
1042         dc->GraphicsMode = mode;
1043     }
1044     release_dc_ptr( dc );
1045     return ret;
1046 }
1047
1048
1049 /***********************************************************************
1050  *              GetArcDirection (GDI32.@)
1051  */
1052 INT WINAPI GetArcDirection( HDC hdc )
1053 {
1054     INT ret = 0;
1055     DC * dc = get_dc_ptr( hdc );
1056     if (dc)
1057     {
1058         ret = dc->ArcDirection;
1059         release_dc_ptr( dc );
1060     }
1061     return ret;
1062 }
1063
1064
1065 /***********************************************************************
1066  *           SetArcDirection    (GDI32.@)
1067  */
1068 INT WINAPI SetArcDirection( HDC hdc, INT dir )
1069 {
1070     DC * dc;
1071     INT ret = 0;
1072
1073     if (dir != AD_COUNTERCLOCKWISE && dir != AD_CLOCKWISE)
1074     {
1075         SetLastError(ERROR_INVALID_PARAMETER);
1076         return 0;
1077     }
1078
1079     if ((dc = get_dc_ptr( hdc )))
1080     {
1081         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetArcDirection );
1082         dir = physdev->funcs->pSetArcDirection( physdev, dir );
1083         if (dir)
1084         {
1085             ret = dc->ArcDirection;
1086             dc->ArcDirection = dir;
1087         }
1088         release_dc_ptr( dc );
1089     }
1090     return ret;
1091 }
1092
1093
1094 /***********************************************************************
1095  *           GetWorldTransform    (GDI32.@)
1096  */
1097 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1098 {
1099     DC * dc;
1100     if (!xform) return FALSE;
1101     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
1102     *xform = dc->xformWorld2Wnd;
1103     release_dc_ptr( dc );
1104     return TRUE;
1105 }
1106
1107
1108 /***********************************************************************
1109  *           GetTransform    (GDI32.@)
1110  *
1111  * Undocumented
1112  *
1113  * Returns one of the co-ordinate space transforms
1114  *
1115  * PARAMS
1116  *    hdc   [I] Device context.
1117  *    which [I] Which xform to return:
1118  *                  0x203 World -> Page transform (that set by SetWorldTransform).
1119  *                  0x304 Page -> Device transform (the mapping mode transform).
1120  *                  0x204 World -> Device transform (the combination of the above two).
1121  *                  0x402 Device -> World transform (the inversion of the above).
1122  *    xform [O] The xform.
1123  *
1124  */
1125 BOOL WINAPI GetTransform( HDC hdc, DWORD which, XFORM *xform )
1126 {
1127     BOOL ret = TRUE;
1128     DC *dc = get_dc_ptr( hdc );
1129     if (!dc) return FALSE;
1130
1131     switch(which)
1132     {
1133     case 0x203:
1134         *xform = dc->xformWorld2Wnd;
1135         break;
1136
1137     case 0x304:
1138         construct_window_to_viewport(dc, xform);
1139         break;
1140
1141     case 0x204:
1142         *xform = dc->xformWorld2Vport;
1143         break;
1144
1145     case 0x402:
1146         *xform = dc->xformVport2World;
1147         break;
1148
1149     default:
1150         FIXME("Unknown code %x\n", which);
1151         ret = FALSE;
1152     }
1153
1154     release_dc_ptr( dc );
1155     return ret;
1156 }
1157
1158
1159 /****************************************************************************
1160  * CombineTransform [GDI32.@]
1161  * Combines two transformation matrices.
1162  *
1163  * PARAMS
1164  *    xformResult [O] Stores the result of combining the two matrices
1165  *    xform1      [I] Specifies the first matrix to apply
1166  *    xform2      [I] Specifies the second matrix to apply
1167  *
1168  * REMARKS
1169  *    The same matrix can be passed in for more than one of the parameters.
1170  *
1171  * RETURNS
1172  *  Success: TRUE.
1173  *  Failure: FALSE. Use GetLastError() to determine the cause.
1174  */
1175 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1176     const XFORM *xform2 )
1177 {
1178     XFORM xformTemp;
1179
1180     /* Check for illegal parameters */
1181     if (!xformResult || !xform1 || !xform2)
1182         return FALSE;
1183
1184     /* Create the result in a temporary XFORM, since xformResult may be
1185      * equal to xform1 or xform2 */
1186     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1187                      xform1->eM12 * xform2->eM21;
1188     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1189                      xform1->eM12 * xform2->eM22;
1190     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1191                      xform1->eM22 * xform2->eM21;
1192     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1193                      xform1->eM22 * xform2->eM22;
1194     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1195                      xform1->eDy  * xform2->eM21 +
1196                      xform2->eDx;
1197     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1198                      xform1->eDy  * xform2->eM22 +
1199                      xform2->eDy;
1200
1201     /* Copy the result to xformResult */
1202     *xformResult = xformTemp;
1203
1204     return TRUE;
1205 }
1206
1207
1208 /***********************************************************************
1209  *           SetDCHook   (GDI32.@)
1210  *
1211  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1212  */
1213 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD_PTR dwHookData )
1214 {
1215     DC *dc = get_dc_ptr( hdc );
1216
1217     if (!dc) return FALSE;
1218
1219     dc->dwHookData = dwHookData;
1220     dc->hookProc = hookProc;
1221     release_dc_ptr( dc );
1222     return TRUE;
1223 }
1224
1225
1226 /***********************************************************************
1227  *           GetDCHook   (GDI32.@)
1228  *
1229  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1230  */
1231 DWORD_PTR WINAPI GetDCHook( HDC hdc, DCHOOKPROC *proc )
1232 {
1233     DC *dc = get_dc_ptr( hdc );
1234     DWORD_PTR ret;
1235
1236     if (!dc) return 0;
1237     if (proc) *proc = dc->hookProc;
1238     ret = dc->dwHookData;
1239     release_dc_ptr( dc );
1240     return ret;
1241 }
1242
1243
1244 /***********************************************************************
1245  *           SetHookFlags   (GDI32.@)
1246  *
1247  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1248  */
1249 WORD WINAPI SetHookFlags( HDC hdc, WORD flags )
1250 {
1251     DC *dc = get_dc_obj( hdc );  /* not get_dc_ptr, this needs to work from any thread */
1252     LONG ret = 0;
1253
1254     if (!dc) return 0;
1255
1256     /* "Undocumented Windows" info is slightly confusing. */
1257
1258     TRACE("hDC %p, flags %04x\n",hdc,flags);
1259
1260     if (flags & DCHF_INVALIDATEVISRGN)
1261         ret = InterlockedExchange( &dc->dirty, 1 );
1262     else if (flags & DCHF_VALIDATEVISRGN || !flags)
1263         ret = InterlockedExchange( &dc->dirty, 0 );
1264
1265     GDI_ReleaseObj( hdc );
1266     return ret;
1267 }
1268
1269 /***********************************************************************
1270  *           SetICMMode    (GDI32.@)
1271  */
1272 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1273 {
1274 /*FIXME:  Assume that ICM is always off, and cannot be turned on */
1275     if (iEnableICM == ICM_OFF) return ICM_OFF;
1276     if (iEnableICM == ICM_ON) return 0;
1277     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1278     return 0;
1279 }
1280
1281 /***********************************************************************
1282  *           GetDeviceGammaRamp    (GDI32.@)
1283  */
1284 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1285 {
1286     BOOL ret = FALSE;
1287     DC *dc = get_dc_ptr( hDC );
1288
1289     TRACE("%p, %p\n", hDC, ptr);
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     TRACE("%p, %p\n", hDC, ptr);
1308     if( dc )
1309     {
1310         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDeviceGammaRamp );
1311         ret = physdev->funcs->pSetDeviceGammaRamp( physdev, ptr );
1312         release_dc_ptr( dc );
1313     }
1314     return ret;
1315 }
1316
1317 /***********************************************************************
1318  *           GetColorSpace    (GDI32.@)
1319  */
1320 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1321 {
1322 /*FIXME    Need to do whatever GetColorSpace actually does */
1323     return 0;
1324 }
1325
1326 /***********************************************************************
1327  *           CreateColorSpaceA    (GDI32.@)
1328  */
1329 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1330 {
1331   FIXME( "stub\n" );
1332   return 0;
1333 }
1334
1335 /***********************************************************************
1336  *           CreateColorSpaceW    (GDI32.@)
1337  */
1338 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1339 {
1340   FIXME( "stub\n" );
1341   return 0;
1342 }
1343
1344 /***********************************************************************
1345  *           DeleteColorSpace     (GDI32.@)
1346  */
1347 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1348 {
1349   FIXME( "stub\n" );
1350
1351   return TRUE;
1352 }
1353
1354 /***********************************************************************
1355  *           SetColorSpace     (GDI32.@)
1356  */
1357 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1358 {
1359   FIXME( "stub\n" );
1360
1361   return hColorSpace;
1362 }
1363
1364 /***********************************************************************
1365  *           GetBoundsRect    (GDI32.@)
1366  */
1367 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1368 {
1369     UINT ret = 0;
1370     DC *dc = get_dc_ptr( hdc );
1371
1372     if ( !dc ) return 0;
1373
1374     if (rect)
1375     {
1376         *rect = dc->BoundsRect;
1377         ret = is_rect_empty( rect ) ? DCB_RESET : DCB_SET;
1378         DPtoLP( hdc, (POINT *)rect, 2 );
1379     }
1380     if (flags & DCB_RESET)
1381     {
1382         dc->BoundsRect.left   = 0;
1383         dc->BoundsRect.top    = 0;
1384         dc->BoundsRect.right  = 0;
1385         dc->BoundsRect.bottom = 0;
1386     }
1387     release_dc_ptr( dc );
1388     return ret;
1389 }
1390
1391
1392 /***********************************************************************
1393  *           SetBoundsRect    (GDI32.@)
1394  */
1395 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1396 {
1397     UINT ret;
1398     DC *dc;
1399
1400     if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
1401     if (!(dc = get_dc_ptr( hdc ))) return 0;
1402
1403     ret = ((dc->flags & DC_BOUNDS_ENABLE) ? DCB_ENABLE : DCB_DISABLE) |
1404            (is_rect_empty( &dc->BoundsRect ) ? DCB_RESET : DCB_SET);
1405
1406     if (flags & DCB_RESET)
1407     {
1408         dc->BoundsRect.left   = 0;
1409         dc->BoundsRect.top    = 0;
1410         dc->BoundsRect.right  = 0;
1411         dc->BoundsRect.bottom = 0;
1412     }
1413
1414     if ((flags & DCB_ACCUMULATE) && rect)
1415     {
1416         RECT rc = *rect;
1417
1418         LPtoDP( hdc, (POINT *)&rc, 2 );
1419         if (!is_rect_empty( &rc ))
1420         {
1421             if (!is_rect_empty( &dc->BoundsRect))
1422             {
1423                 dc->BoundsRect.left   = min( dc->BoundsRect.left, rc.left );
1424                 dc->BoundsRect.top    = min( dc->BoundsRect.top, rc.top );
1425                 dc->BoundsRect.right  = max( dc->BoundsRect.right, rc.right );
1426                 dc->BoundsRect.bottom = max( dc->BoundsRect.bottom, rc.bottom );
1427             }
1428             else dc->BoundsRect = rc;
1429         }
1430     }
1431
1432     if (flags & DCB_ENABLE) dc->flags |= DC_BOUNDS_ENABLE;
1433     if (flags & DCB_DISABLE) dc->flags &= ~DC_BOUNDS_ENABLE;
1434
1435     release_dc_ptr( dc );
1436     return ret;
1437 }
1438
1439
1440 /***********************************************************************
1441  *              GetRelAbs               (GDI32.@)
1442  */
1443 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1444 {
1445     INT ret = 0;
1446     DC *dc = get_dc_ptr( hdc );
1447     if (dc)
1448     {
1449         ret = dc->relAbsMode;
1450         release_dc_ptr( dc );
1451     }
1452     return ret;
1453 }
1454
1455
1456
1457
1458 /***********************************************************************
1459  *              GetBkMode (GDI32.@)
1460  */
1461 INT WINAPI GetBkMode( HDC hdc )
1462 {
1463     INT ret = 0;
1464     DC * dc = get_dc_ptr( hdc );
1465     if (dc)
1466     {
1467         ret = dc->backgroundMode;
1468         release_dc_ptr( dc );
1469     }
1470     return ret;
1471 }
1472
1473
1474 /***********************************************************************
1475  *              SetBkMode (GDI32.@)
1476  */
1477 INT WINAPI SetBkMode( HDC hdc, INT mode )
1478 {
1479     INT ret = 0;
1480     DC *dc;
1481
1482     if ((mode <= 0) || (mode > BKMODE_LAST))
1483     {
1484         SetLastError(ERROR_INVALID_PARAMETER);
1485         return 0;
1486     }
1487     if ((dc = get_dc_ptr( hdc )))
1488     {
1489         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetBkMode );
1490         mode = physdev->funcs->pSetBkMode( physdev, mode );
1491         if (mode)
1492         {
1493             ret = dc->backgroundMode;
1494             dc->backgroundMode = mode;
1495         }
1496         release_dc_ptr( dc );
1497     }
1498     return ret;
1499 }
1500
1501
1502 /***********************************************************************
1503  *              GetROP2 (GDI32.@)
1504  */
1505 INT WINAPI GetROP2( HDC hdc )
1506 {
1507     INT ret = 0;
1508     DC * dc = get_dc_ptr( hdc );
1509     if (dc)
1510     {
1511         ret = dc->ROPmode;
1512         release_dc_ptr( dc );
1513     }
1514     return ret;
1515 }
1516
1517
1518 /***********************************************************************
1519  *              SetROP2 (GDI32.@)
1520  */
1521 INT WINAPI SetROP2( HDC hdc, INT mode )
1522 {
1523     INT ret = 0;
1524     DC *dc;
1525
1526     if ((mode < R2_BLACK) || (mode > R2_WHITE))
1527     {
1528         SetLastError(ERROR_INVALID_PARAMETER);
1529         return 0;
1530     }
1531     if ((dc = get_dc_ptr( hdc )))
1532     {
1533         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetROP2 );
1534         mode = physdev->funcs->pSetROP2( physdev, mode );
1535         if (mode)
1536         {
1537             ret = dc->ROPmode;
1538             dc->ROPmode = mode;
1539         }
1540         release_dc_ptr( dc );
1541     }
1542     return ret;
1543 }
1544
1545
1546 /***********************************************************************
1547  *              SetRelAbs (GDI32.@)
1548  */
1549 INT WINAPI SetRelAbs( HDC hdc, INT mode )
1550 {
1551     INT ret = 0;
1552     DC *dc;
1553
1554     if ((mode != ABSOLUTE) && (mode != RELATIVE))
1555     {
1556         SetLastError(ERROR_INVALID_PARAMETER);
1557         return 0;
1558     }
1559     if ((dc = get_dc_ptr( hdc )))
1560     {
1561         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetRelAbs );
1562         mode = physdev->funcs->pSetRelAbs( physdev, mode );
1563         if (mode)
1564         {
1565             ret = dc->relAbsMode;
1566             dc->relAbsMode = mode;
1567         }
1568         release_dc_ptr( dc );
1569     }
1570     return ret;
1571 }
1572
1573
1574 /***********************************************************************
1575  *              GetPolyFillMode (GDI32.@)
1576  */
1577 INT WINAPI GetPolyFillMode( HDC hdc )
1578 {
1579     INT ret = 0;
1580     DC * dc = get_dc_ptr( hdc );
1581     if (dc)
1582     {
1583         ret = dc->polyFillMode;
1584         release_dc_ptr( dc );
1585     }
1586     return ret;
1587 }
1588
1589
1590 /***********************************************************************
1591  *              SetPolyFillMode (GDI32.@)
1592  */
1593 INT WINAPI SetPolyFillMode( HDC hdc, INT mode )
1594 {
1595     INT ret = 0;
1596     DC *dc;
1597
1598     if ((mode <= 0) || (mode > POLYFILL_LAST))
1599     {
1600         SetLastError(ERROR_INVALID_PARAMETER);
1601         return 0;
1602     }
1603     if ((dc = get_dc_ptr( hdc )))
1604     {
1605         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetPolyFillMode );
1606         mode = physdev->funcs->pSetPolyFillMode( physdev, mode );
1607         if (mode)
1608         {
1609             ret = dc->polyFillMode;
1610             dc->polyFillMode = mode;
1611         }
1612         release_dc_ptr( dc );
1613     }
1614     return ret;
1615 }
1616
1617
1618 /***********************************************************************
1619  *              GetStretchBltMode (GDI32.@)
1620  */
1621 INT WINAPI GetStretchBltMode( HDC hdc )
1622 {
1623     INT ret = 0;
1624     DC * dc = get_dc_ptr( hdc );
1625     if (dc)
1626     {
1627         ret = dc->stretchBltMode;
1628         release_dc_ptr( dc );
1629     }
1630     return ret;
1631 }
1632
1633
1634 /***********************************************************************
1635  *              SetStretchBltMode (GDI32.@)
1636  */
1637 INT WINAPI SetStretchBltMode( HDC hdc, INT mode )
1638 {
1639     INT ret = 0;
1640     DC *dc;
1641
1642     if ((mode <= 0) || (mode > MAXSTRETCHBLTMODE))
1643     {
1644         SetLastError(ERROR_INVALID_PARAMETER);
1645         return 0;
1646     }
1647     if ((dc = get_dc_ptr( hdc )))
1648     {
1649         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetStretchBltMode );
1650         mode = physdev->funcs->pSetStretchBltMode( physdev, mode );
1651         if (mode)
1652         {
1653             ret = dc->stretchBltMode;
1654             dc->stretchBltMode = mode;
1655         }
1656         release_dc_ptr( dc );
1657     }
1658     return ret;
1659 }
1660
1661
1662 /***********************************************************************
1663  *              GetMapMode (GDI32.@)
1664  */
1665 INT WINAPI GetMapMode( HDC hdc )
1666 {
1667     INT ret = 0;
1668     DC * dc = get_dc_ptr( hdc );
1669     if (dc)
1670     {
1671         ret = dc->MapMode;
1672         release_dc_ptr( dc );
1673     }
1674     return ret;
1675 }
1676
1677
1678 /***********************************************************************
1679  *              GetBrushOrgEx (GDI32.@)
1680  */
1681 BOOL WINAPI GetBrushOrgEx( HDC hdc, LPPOINT pt )
1682 {
1683     DC * dc = get_dc_ptr( hdc );
1684     if (!dc) return FALSE;
1685     pt->x = dc->brushOrgX;
1686     pt->y = dc->brushOrgY;
1687     release_dc_ptr( dc );
1688     return TRUE;
1689 }
1690
1691
1692 /***********************************************************************
1693  *              GetCurrentPositionEx (GDI32.@)
1694  */
1695 BOOL WINAPI GetCurrentPositionEx( HDC hdc, LPPOINT pt )
1696 {
1697     DC * dc = get_dc_ptr( hdc );
1698     if (!dc) return FALSE;
1699     pt->x = dc->CursPosX;
1700     pt->y = dc->CursPosY;
1701     release_dc_ptr( dc );
1702     return TRUE;
1703 }
1704
1705
1706 /***********************************************************************
1707  *              GetViewportExtEx (GDI32.@)
1708  */
1709 BOOL WINAPI GetViewportExtEx( HDC hdc, LPSIZE size )
1710 {
1711     DC * dc = get_dc_ptr( hdc );
1712     if (!dc) return FALSE;
1713     size->cx = dc->vportExtX;
1714     size->cy = dc->vportExtY;
1715     release_dc_ptr( dc );
1716     return TRUE;
1717 }
1718
1719
1720 /***********************************************************************
1721  *              GetViewportOrgEx (GDI32.@)
1722  */
1723 BOOL WINAPI GetViewportOrgEx( HDC hdc, LPPOINT pt )
1724 {
1725     DC * dc = get_dc_ptr( hdc );
1726     if (!dc) return FALSE;
1727     pt->x = dc->vportOrgX;
1728     pt->y = dc->vportOrgY;
1729     release_dc_ptr( dc );
1730     return TRUE;
1731 }
1732
1733
1734 /***********************************************************************
1735  *              GetWindowExtEx (GDI32.@)
1736  */
1737 BOOL WINAPI GetWindowExtEx( HDC hdc, LPSIZE size )
1738 {
1739     DC * dc = get_dc_ptr( hdc );
1740     if (!dc) return FALSE;
1741     size->cx = dc->wndExtX;
1742     size->cy = dc->wndExtY;
1743     release_dc_ptr( dc );
1744     return TRUE;
1745 }
1746
1747
1748 /***********************************************************************
1749  *              GetWindowOrgEx (GDI32.@)
1750  */
1751 BOOL WINAPI GetWindowOrgEx( HDC hdc, LPPOINT pt )
1752 {
1753     DC * dc = get_dc_ptr( hdc );
1754     if (!dc) return FALSE;
1755     pt->x = dc->wndOrgX;
1756     pt->y = dc->wndOrgY;
1757     release_dc_ptr( dc );
1758     return TRUE;
1759 }
1760
1761
1762 /***********************************************************************
1763  *           GetLayout    (GDI32.@)
1764  *
1765  * Gets left->right or right->left text layout flags of a dc.
1766  *
1767  */
1768 DWORD WINAPI GetLayout(HDC hdc)
1769 {
1770     DWORD layout = GDI_ERROR;
1771
1772     DC * dc = get_dc_ptr( hdc );
1773     if (dc)
1774     {
1775         layout = dc->layout;
1776         release_dc_ptr( dc );
1777     }
1778
1779     TRACE("hdc : %p, layout : %08x\n", hdc, layout);
1780
1781     return layout;
1782 }
1783
1784 /***********************************************************************
1785  *           SetLayout    (GDI32.@)
1786  *
1787  * Sets left->right or right->left text layout flags of a dc.
1788  *
1789  */
1790 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1791 {
1792     DWORD oldlayout = GDI_ERROR;
1793
1794     DC * dc = get_dc_ptr( hdc );
1795     if (dc)
1796     {
1797         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetLayout );
1798         layout = physdev->funcs->pSetLayout( physdev, layout );
1799         if (layout != GDI_ERROR)
1800         {
1801             oldlayout = dc->layout;
1802             dc->layout = layout;
1803             if (layout != oldlayout)
1804             {
1805                 if (layout & LAYOUT_RTL) dc->MapMode = MM_ANISOTROPIC;
1806                 DC_UpdateXforms( dc );
1807             }
1808         }
1809         release_dc_ptr( dc );
1810     }
1811
1812     TRACE("hdc : %p, old layout : %08x, new layout : %08x\n", hdc, oldlayout, layout);
1813
1814     return oldlayout;
1815 }
1816
1817 /***********************************************************************
1818  *           GetDCBrushColor    (GDI32.@)
1819  */
1820 COLORREF WINAPI GetDCBrushColor(HDC hdc)
1821 {
1822     DC *dc;
1823     COLORREF dcBrushColor = CLR_INVALID;
1824
1825     TRACE("hdc(%p)\n", hdc);
1826
1827     dc = get_dc_ptr( hdc );
1828     if (dc)
1829     {
1830         dcBrushColor = dc->dcBrushColor;
1831         release_dc_ptr( dc );
1832     }
1833
1834     return dcBrushColor;
1835 }
1836
1837 /***********************************************************************
1838  *           SetDCBrushColor    (GDI32.@)
1839  */
1840 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1841 {
1842     DC *dc;
1843     COLORREF oldClr = CLR_INVALID;
1844
1845     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
1846
1847     dc = get_dc_ptr( hdc );
1848     if (dc)
1849     {
1850         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDCBrushColor );
1851         crColor = physdev->funcs->pSetDCBrushColor( physdev, crColor );
1852         if (crColor != CLR_INVALID)
1853         {
1854             oldClr = dc->dcBrushColor;
1855             dc->dcBrushColor = crColor;
1856         }
1857         release_dc_ptr( dc );
1858     }
1859
1860     return oldClr;
1861 }
1862
1863 /***********************************************************************
1864  *           GetDCPenColor    (GDI32.@)
1865  */
1866 COLORREF WINAPI GetDCPenColor(HDC hdc)
1867 {
1868     DC *dc;
1869     COLORREF dcPenColor = CLR_INVALID;
1870
1871     TRACE("hdc(%p)\n", hdc);
1872
1873     dc = get_dc_ptr( hdc );
1874     if (dc)
1875     {
1876         dcPenColor = dc->dcPenColor;
1877         release_dc_ptr( dc );
1878     }
1879
1880     return dcPenColor;
1881 }
1882
1883 /***********************************************************************
1884  *           SetDCPenColor    (GDI32.@)
1885  */
1886 COLORREF WINAPI SetDCPenColor(HDC hdc, COLORREF crColor)
1887 {
1888     DC *dc;
1889     COLORREF oldClr = CLR_INVALID;
1890
1891     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
1892
1893     dc = get_dc_ptr( hdc );
1894     if (dc)
1895     {
1896         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDCPenColor );
1897         crColor = physdev->funcs->pSetDCPenColor( physdev, crColor );
1898         if (crColor != CLR_INVALID)
1899         {
1900             oldClr = dc->dcPenColor;
1901             dc->dcPenColor = crColor;
1902         }
1903         release_dc_ptr( dc );
1904     }
1905
1906     return oldClr;
1907 }
1908
1909 /***********************************************************************
1910  *           CancelDC    (GDI32.@)
1911  */
1912 BOOL WINAPI CancelDC(HDC hdc)
1913 {
1914     FIXME("stub\n");
1915     return TRUE;
1916 }
1917
1918 /*******************************************************************
1919  *      GetMiterLimit [GDI32.@]
1920  *
1921  *
1922  */
1923 BOOL WINAPI GetMiterLimit(HDC hdc, PFLOAT peLimit)
1924 {
1925     BOOL bRet = FALSE;
1926     DC *dc;
1927
1928     TRACE("(%p,%p)\n", hdc, peLimit);
1929
1930     dc = get_dc_ptr( hdc );
1931     if (dc)
1932     {
1933         if (peLimit)
1934             *peLimit = dc->miterLimit;
1935
1936         release_dc_ptr( dc );
1937         bRet = TRUE;
1938     }
1939     return bRet;
1940 }
1941
1942 /*******************************************************************
1943  *      SetMiterLimit [GDI32.@]
1944  *
1945  *
1946  */
1947 BOOL WINAPI SetMiterLimit(HDC hdc, FLOAT eNewLimit, PFLOAT peOldLimit)
1948 {
1949     BOOL bRet = FALSE;
1950     DC *dc;
1951
1952     TRACE("(%p,%f,%p)\n", hdc, eNewLimit, peOldLimit);
1953
1954     dc = get_dc_ptr( hdc );
1955     if (dc)
1956     {
1957         if (peOldLimit)
1958             *peOldLimit = dc->miterLimit;
1959         dc->miterLimit = eNewLimit;
1960         release_dc_ptr( dc );
1961         bRet = TRUE;
1962     }
1963     return bRet;
1964 }
1965
1966 /*******************************************************************
1967  *      GdiIsMetaPrintDC [GDI32.@]
1968  */
1969 BOOL WINAPI GdiIsMetaPrintDC(HDC hdc)
1970 {
1971     FIXME("%p\n", hdc);
1972     return FALSE;
1973 }
1974
1975 /*******************************************************************
1976  *      GdiIsMetaFileDC [GDI32.@]
1977  */
1978 BOOL WINAPI GdiIsMetaFileDC(HDC hdc)
1979 {
1980     TRACE("%p\n", hdc);
1981
1982     switch( GetObjectType( hdc ) )
1983     {
1984     case OBJ_METADC:
1985     case OBJ_ENHMETADC:
1986         return TRUE;
1987     }
1988     return FALSE;
1989 }
1990
1991 /*******************************************************************
1992  *      GdiIsPlayMetafileDC [GDI32.@]
1993  */
1994 BOOL WINAPI GdiIsPlayMetafileDC(HDC hdc)
1995 {
1996     FIXME("%p\n", hdc);
1997     return FALSE;
1998 }