dlls/gdi32/dc.c

   1 /*
   2  * GDI Device Context functions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <assert.h>
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "wingdi.h"
  30 #include "winreg.h"
  31 #include "winternl.h"
  32 #include "winerror.h"
  33 #include "gdi_private.h"
  34 #include "wine/unicode.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(dc);
  38
  39 static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
  40
  41 static BOOL DC_DeleteObject( HGDIOBJ handle );
  42
  43 static const struct gdi_obj_funcs dc_funcs =
  44 {
  45     NULL,             /* pSelectObject */
  46     NULL,             /* pGetObjectA */
  47     NULL,             /* pGetObjectW */
  48     NULL,             /* pUnrealizeObject */
  49     DC_DeleteObject   /* pDeleteObject */
  50 };
  51
  52
  53 static inline DC *get_dc_obj( HDC hdc )
  54 {
  55     DC *dc = GDI_GetObjPtr( hdc, 0 );
  56     if (!dc) return NULL;
  57
  58     if ((dc->header.type != OBJ_DC) &&
  59         (dc->header.type != OBJ_MEMDC) &&
  60         (dc->header.type != OBJ_METADC) &&
  61         (dc->header.type != OBJ_ENHMETADC))
  62     {
  63         GDI_ReleaseObj( hdc );
  64         SetLastError( ERROR_INVALID_HANDLE );
  65         dc = NULL;
  66     }
  67     return dc;
  68 }
  69
  70
  71 /***********************************************************************
  72  *           alloc_dc_ptr
  73  */
  74 DC *alloc_dc_ptr( WORD magic )
  75 {
  76     DC *dc;
  77
  78     if (!(dc = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*dc) ))) return NULL;
  79
  80     dc->nulldrv.funcs       = &null_driver;
  81     dc->physDev             = &dc->nulldrv;
  82     dc->thread              = GetCurrentThreadId();
  83     dc->refcount            = 1;
  84     dc->wndExtX             = 1;
  85     dc->wndExtY             = 1;
  86     dc->vportExtX           = 1;
  87     dc->vportExtY           = 1;
  88     dc->miterLimit          = 10.0f; /* 10.0 is the default, from MSDN */
  89     dc->hPen                = GDI_inc_ref_count( GetStockObject( BLACK_PEN ));
  90     dc->hBrush              = GDI_inc_ref_count( GetStockObject( WHITE_BRUSH ));
  91     dc->hFont               = GDI_inc_ref_count( GetStockObject( SYSTEM_FONT ));
  92     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
  93     dc->font_code_page      = CP_ACP;
  94     dc->ROPmode             = R2_COPYPEN;
  95     dc->polyFillMode        = ALTERNATE;
  96     dc->stretchBltMode      = BLACKONWHITE;
  97     dc->relAbsMode          = ABSOLUTE;
  98     dc->backgroundMode      = OPAQUE;
  99     dc->backgroundColor     = RGB( 255, 255, 255 );
 100     dc->dcBrushColor        = RGB( 255, 255, 255 );
 101     dc->dcPenColor          = RGB( 0, 0, 0 );
 102     dc->textColor           = RGB( 0, 0, 0 );
 103     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
 104     dc->MapMode             = MM_TEXT;
 105     dc->GraphicsMode        = GM_COMPATIBLE;
 106     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 107     dc->xformWorld2Wnd.eM11 = 1.0f;
 108     dc->xformWorld2Wnd.eM12 = 0.0f;
 109     dc->xformWorld2Wnd.eM21 = 0.0f;
 110     dc->xformWorld2Wnd.eM22 = 1.0f;
 111     dc->xformWorld2Wnd.eDx  = 0.0f;
 112     dc->xformWorld2Wnd.eDy  = 0.0f;
 113     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 114     dc->xformVport2World    = dc->xformWorld2Wnd;
 115     dc->vport2WorldValid    = TRUE;
 116
 117     if (!(dc->hSelf = alloc_gdi_handle( &dc->header, magic, &dc_funcs )))
 118     {
 119         HeapFree( GetProcessHeap(), 0, dc );
 120         return NULL;
 121     }
 122     dc->nulldrv.hdc = dc->hSelf;
 123
 124     if (font_driver && !font_driver->pCreateDC( &dc->physDev, NULL, NULL, NULL, NULL ))
 125     {
 126         free_dc_ptr( dc );
 127         return NULL;
 128     }
 129     return dc;
 130 }
 131
 132
 133
 134 /***********************************************************************
 135  *           free_dc_state
 136  */
 137 static void free_dc_state( DC *dc )
 138 {
 139     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 140     if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 141     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 142     if (dc->region) DeleteObject( dc->region );
 143     if (dc->path) free_gdi_path( dc->path );
 144     HeapFree( GetProcessHeap(), 0, dc );
 145 }
 146
 147
 148 /***********************************************************************
 149  *           free_dc_ptr
 150  */
 151 void free_dc_ptr( DC *dc )
 152 {
 153     assert( dc->refcount == 1 );
 154
 155     while (dc->physDev != &dc->nulldrv)
 156     {
 157         PHYSDEV physdev = pop_dc_driver( &dc->physDev );
 158         physdev->funcs->pDeleteDC( physdev );
 159         if (physdev == dc->dibdrv) dc->dibdrv = NULL;
 160     }
 161     if (dc->dibdrv) dc->dibdrv->funcs->pDeleteDC( dc->dibdrv );
 162     free_gdi_handle( dc->hSelf );
 163     free_dc_state( dc );
 164 }
 165
 166
 167 /***********************************************************************
 168  *           get_dc_ptr
 169  *
 170  * Retrieve a DC pointer but release the GDI lock.
 171  */
 172 DC *get_dc_ptr( HDC hdc )
 173 {
 174     DC *dc = get_dc_obj( hdc );
 175     if (!dc) return NULL;
 176
 177     if (!InterlockedCompareExchange( &dc->refcount, 1, 0 ))
 178     {
 179         dc->thread = GetCurrentThreadId();
 180     }
 181     else if (dc->thread != GetCurrentThreadId())
 182     {
 183         WARN( "dc %p belongs to thread %04x\n", hdc, dc->thread );
 184         GDI_ReleaseObj( hdc );
 185         return NULL;
 186     }
 187     else InterlockedIncrement( &dc->refcount );
 188
 189     GDI_ReleaseObj( hdc );
 190     return dc;
 191 }
 192
 193
 194 /***********************************************************************
 195  *           release_dc_ptr
 196  */
 197 void release_dc_ptr( DC *dc )
 198 {
 199     LONG ref;
 200
 201     dc->thread = 0;
 202     ref = InterlockedDecrement( &dc->refcount );
 203     assert( ref >= 0 );
 204     if (ref) dc->thread = GetCurrentThreadId();  /* we still own it */
 205 }
 206
 207
 208 /***********************************************************************
 209  *           update_dc
 210  *
 211  * Make sure the DC vis region is up to date.
 212  * This function may call up to USER so the GDI lock should _not_
 213  * be held when calling it.
 214  */
 215 void update_dc( DC *dc )
 216 {
 217     if (InterlockedExchange( &dc->dirty, 0 ) && dc->hookProc)
 218         dc->hookProc( dc->hSelf, DCHC_INVALIDVISRGN, dc->dwHookData, 0 );
 219 }
 220
 221
 222 /***********************************************************************
 223  *           DC_DeleteObject
 224  */
 225 static BOOL DC_DeleteObject( HGDIOBJ handle )
 226 {
 227     return DeleteDC( handle );
 228 }
 229
 230
 231 /***********************************************************************
 232  *           DC_InitDC
 233  *
 234  * Setup device-specific DC values for a newly created DC.
 235  */
 236 void DC_InitDC( DC* dc )
 237 {
 238     PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRealizeDefaultPalette );
 239     physdev->funcs->pRealizeDefaultPalette( physdev );
 240     SetTextColor( dc->hSelf, dc->textColor );
 241     SetBkColor( dc->hSelf, dc->backgroundColor );
 242     SelectObject( dc->hSelf, dc->hPen );
 243     SelectObject( dc->hSelf, dc->hBrush );
 244     SelectObject( dc->hSelf, dc->hFont );
 245     update_dc_clipping( dc );
 246     SetVirtualResolution( dc->hSelf, 0, 0, 0, 0 );
 247 }
 248
 249
 250 /***********************************************************************
 251  *           DC_InvertXform
 252  *
 253  * Computes the inverse of the transformation xformSrc and stores it to
 254  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 255  * is singular.
 256  */
 257 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 258 {
 259     double determinant;
 260
 261     determinant = xformSrc->eM11*xformSrc->eM22 -
 262         xformSrc->eM12*xformSrc->eM21;
 263     if (determinant > -1e-12 && determinant < 1e-12)
 264         return FALSE;
 265
 266     xformDest->eM11 =  xformSrc->eM22 / determinant;
 267     xformDest->eM12 = -xformSrc->eM12 / determinant;
 268     xformDest->eM21 = -xformSrc->eM21 / determinant;
 269     xformDest->eM22 =  xformSrc->eM11 / determinant;
 270     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 271                        xformSrc->eDy * xformDest->eM21;
 272     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 273                        xformSrc->eDy * xformDest->eM22;
 274
 275     return TRUE;
 276 }
 277
 278 /* Construct a transformation to do the window-to-viewport conversion */
 279 static void construct_window_to_viewport(DC *dc, XFORM *xform)
 280 {
 281     double scaleX, scaleY;
 282     scaleX = (double)dc->vportExtX / (double)dc->wndExtX;
 283     scaleY = (double)dc->vportExtY / (double)dc->wndExtY;
 284
 285     if (dc->layout & LAYOUT_RTL) scaleX = -scaleX;
 286     xform->eM11 = scaleX;
 287     xform->eM12 = 0.0;
 288     xform->eM21 = 0.0;
 289     xform->eM22 = scaleY;
 290     xform->eDx  = (double)dc->vportOrgX - scaleX * (double)dc->wndOrgX;
 291     xform->eDy  = (double)dc->vportOrgY - scaleY * (double)dc->wndOrgY;
 292     if (dc->layout & LAYOUT_RTL) xform->eDx = dc->vis_rect.right - dc->vis_rect.left - 1 - xform->eDx;
 293 }
 294
 295 /***********************************************************************
 296  *           DC_UpdateXforms
 297  *
 298  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 299  * fields of the specified DC by creating a transformation that
 300  * represents the current mapping mode and combining it with the DC's
 301  * world transform. This function should be called whenever the
 302  * parameters associated with the mapping mode (window and viewport
 303  * extents and origins) or the world transform change.
 304  */
 305 void DC_UpdateXforms( DC *dc )
 306 {
 307     XFORM xformWnd2Vport, oldworld2vport;
 308
 309     construct_window_to_viewport(dc, &xformWnd2Vport);
 310
 311     oldworld2vport = dc->xformWorld2Vport;
 312     /* Combine with the world transformation */
 313     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 314         &xformWnd2Vport );
 315
 316     /* Create inverse of world-to-viewport transformation */
 317     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 318         &dc->xformVport2World );
 319
 320     /* Reselect the font and pen back into the dc so that the size
 321        gets updated. */
 322     if (memcmp(&oldworld2vport, &dc->xformWorld2Vport, sizeof(oldworld2vport)) &&
 323         !GdiIsMetaFileDC(dc->hSelf))
 324     {
 325         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
 326         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_PEN));
 327     }
 328 }
 329
 330
 331 /***********************************************************************
 332  *           nulldrv_SaveDC
 333  */
 334 INT nulldrv_SaveDC( PHYSDEV dev )
 335 {
 336     DC *newdc, *dc = get_nulldrv_dc( dev );
 337
 338     if (!(newdc = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*newdc )))) return 0;
 339     newdc->flags            = dc->flags;
 340     newdc->layout           = dc->layout;
 341     newdc->hPen             = dc->hPen;
 342     newdc->hBrush           = dc->hBrush;
 343     newdc->hFont            = dc->hFont;
 344     newdc->hBitmap          = dc->hBitmap;
 345     newdc->hDevice          = dc->hDevice;
 346     newdc->hPalette         = dc->hPalette;
 347     newdc->ROPmode          = dc->ROPmode;
 348     newdc->polyFillMode     = dc->polyFillMode;
 349     newdc->stretchBltMode   = dc->stretchBltMode;
 350     newdc->relAbsMode       = dc->relAbsMode;
 351     newdc->backgroundMode   = dc->backgroundMode;
 352     newdc->backgroundColor  = dc->backgroundColor;
 353     newdc->textColor        = dc->textColor;
 354     newdc->dcBrushColor     = dc->dcBrushColor;
 355     newdc->dcPenColor       = dc->dcPenColor;
 356     newdc->brushOrgX        = dc->brushOrgX;
 357     newdc->brushOrgY        = dc->brushOrgY;
 358     newdc->mapperFlags      = dc->mapperFlags;
 359     newdc->textAlign        = dc->textAlign;
 360     newdc->charExtra        = dc->charExtra;
 361     newdc->breakExtra       = dc->breakExtra;
 362     newdc->breakRem         = dc->breakRem;
 363     newdc->MapMode          = dc->MapMode;
 364     newdc->GraphicsMode     = dc->GraphicsMode;
 365     newdc->CursPosX         = dc->CursPosX;
 366     newdc->CursPosY         = dc->CursPosY;
 367     newdc->ArcDirection     = dc->ArcDirection;
 368     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 369     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 370     newdc->xformVport2World = dc->xformVport2World;
 371     newdc->vport2WorldValid = dc->vport2WorldValid;
 372     newdc->wndOrgX          = dc->wndOrgX;
 373     newdc->wndOrgY          = dc->wndOrgY;
 374     newdc->wndExtX          = dc->wndExtX;
 375     newdc->wndExtY          = dc->wndExtY;
 376     newdc->vportOrgX        = dc->vportOrgX;
 377     newdc->vportOrgY        = dc->vportOrgY;
 378     newdc->vportExtX        = dc->vportExtX;
 379     newdc->vportExtY        = dc->vportExtY;
 380     newdc->virtual_res      = dc->virtual_res;
 381     newdc->virtual_size     = dc->virtual_size;
 382     newdc->BoundsRect       = dc->BoundsRect;
 383     newdc->gdiFont          = dc->gdiFont;
 384
 385     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 386
 387     if (dc->hClipRgn)
 388     {
 389         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 390         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 391     }
 392     if (dc->hMetaRgn)
 393     {
 394         newdc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 395         CombineRgn( newdc->hMetaRgn, dc->hMetaRgn, 0, RGN_COPY );
 396     }
 397
 398     if (!PATH_SavePath( newdc, dc ))
 399     {
 400         release_dc_ptr( dc );
 401         free_dc_state( newdc );
 402         return 0;
 403     }
 404
 405     newdc->saved_dc = dc->saved_dc;
 406     dc->saved_dc = newdc;
 407     return ++dc->saveLevel;
 408 }
 409
 410
 411 /***********************************************************************
 412  *           restore_dc_state
 413  */
 414 BOOL nulldrv_RestoreDC( PHYSDEV dev, INT level )
 415 {
 416     DC *dcs, *first_dcs, *dc = get_nulldrv_dc( dev );
 417     INT save_level;
 418
 419     /* find the state level to restore */
 420
 421     if (abs(level) > dc->saveLevel || level == 0) return FALSE;
 422     if (level < 0) level = dc->saveLevel + level + 1;
 423     first_dcs = dc->saved_dc;
 424     for (dcs = first_dcs, save_level = dc->saveLevel; save_level > level; save_level--)
 425         dcs = dcs->saved_dc;
 426
 427     /* restore the state */
 428
 429     if (!PATH_RestorePath( dc, dcs )) return FALSE;
 430
 431     dc->flags            = dcs->flags;
 432     dc->layout           = dcs->layout;
 433     dc->hDevice          = dcs->hDevice;
 434     dc->ROPmode          = dcs->ROPmode;
 435     dc->polyFillMode     = dcs->polyFillMode;
 436     dc->stretchBltMode   = dcs->stretchBltMode;
 437     dc->relAbsMode       = dcs->relAbsMode;
 438     dc->backgroundMode   = dcs->backgroundMode;
 439     dc->backgroundColor  = dcs->backgroundColor;
 440     dc->textColor        = dcs->textColor;
 441     dc->dcBrushColor     = dcs->dcBrushColor;
 442     dc->dcPenColor       = dcs->dcPenColor;
 443     dc->brushOrgX        = dcs->brushOrgX;
 444     dc->brushOrgY        = dcs->brushOrgY;
 445     dc->mapperFlags      = dcs->mapperFlags;
 446     dc->textAlign        = dcs->textAlign;
 447     dc->charExtra        = dcs->charExtra;
 448     dc->breakExtra       = dcs->breakExtra;
 449     dc->breakRem         = dcs->breakRem;
 450     dc->MapMode          = dcs->MapMode;
 451     dc->GraphicsMode     = dcs->GraphicsMode;
 452     dc->CursPosX         = dcs->CursPosX;
 453     dc->CursPosY         = dcs->CursPosY;
 454     dc->ArcDirection     = dcs->ArcDirection;
 455     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 456     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 457     dc->xformVport2World = dcs->xformVport2World;
 458     dc->vport2WorldValid = dcs->vport2WorldValid;
 459     dc->BoundsRect       = dcs->BoundsRect;
 460
 461     dc->wndOrgX          = dcs->wndOrgX;
 462     dc->wndOrgY          = dcs->wndOrgY;
 463     dc->wndExtX          = dcs->wndExtX;
 464     dc->wndExtY          = dcs->wndExtY;
 465     dc->vportOrgX        = dcs->vportOrgX;
 466     dc->vportOrgY        = dcs->vportOrgY;
 467     dc->vportExtX        = dcs->vportExtX;
 468     dc->vportExtY        = dcs->vportExtY;
 469     dc->virtual_res      = dcs->virtual_res;
 470     dc->virtual_size     = dcs->virtual_size;
 471
 472     if (dcs->hClipRgn)
 473     {
 474         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 475         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 476     }
 477     else
 478     {
 479         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 480         dc->hClipRgn = 0;
 481     }
 482     if (dcs->hMetaRgn)
 483     {
 484         if (!dc->hMetaRgn) dc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 485         CombineRgn( dc->hMetaRgn, dcs->hMetaRgn, 0, RGN_COPY );
 486     }
 487     else
 488     {
 489         if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 490         dc->hMetaRgn = 0;
 491     }
 492     DC_UpdateXforms( dc );
 493     update_dc_clipping( dc );
 494
 495     SelectObject( dev->hdc, dcs->hBitmap );
 496     SelectObject( dev->hdc, dcs->hBrush );
 497     SelectObject( dev->hdc, dcs->hFont );
 498     SelectObject( dev->hdc, dcs->hPen );
 499     SetBkColor( dev->hdc, dcs->backgroundColor);
 500     SetTextColor( dev->hdc, dcs->textColor);
 501     GDISelectPalette( dev->hdc, dcs->hPalette, FALSE );
 502
 503     dc->saved_dc  = dcs->saved_dc;
 504     dcs->saved_dc = 0;
 505     dc->saveLevel = save_level - 1;
 506
 507     /* now destroy all the saved DCs */
 508
 509     while (first_dcs)
 510     {
 511         DC *next = first_dcs->saved_dc;
 512         free_dc_state( first_dcs );
 513         first_dcs = next;
 514     }
 515     return TRUE;
 516 }
 517
 518
 519 /***********************************************************************
 520  *           SaveDC    (GDI32.@)
 521  */
 522 INT WINAPI SaveDC( HDC hdc )
 523 {
 524     DC * dc;
 525     INT ret = 0;
 526
 527     if ((dc = get_dc_ptr( hdc )))
 528     {
 529         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSaveDC );
 530         ret = physdev->funcs->pSaveDC( physdev );
 531         release_dc_ptr( dc );
 532     }
 533     return ret;
 534 }
 535
 536
 537 /***********************************************************************
 538  *           RestoreDC    (GDI32.@)
 539  */
 540 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 541 {
 542     DC *dc;
 543     BOOL success = FALSE;
 544
 545     TRACE("%p %d\n", hdc, level );
 546     if ((dc = get_dc_ptr( hdc )))
 547     {
 548         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRestoreDC );
 549         update_dc( dc );
 550         success = physdev->funcs->pRestoreDC( physdev, level );
 551         release_dc_ptr( dc );
 552     }
 553     return success;
 554 }
 555
 556
 557 /***********************************************************************
 558  *           CreateDCW    (GDI32.@)
 559  */
 560 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 561                       const DEVMODEW *initData )
 562 {
 563     HDC hdc;
 564     DC * dc;
 565     const struct gdi_dc_funcs *funcs;
 566     WCHAR buf[300];
 567
 568     GDI_CheckNotLock();
 569
 570     if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
 571     {
 572         if (!driver)
 573         {
 574             ERR( "no device found for %s\n", debugstr_w(device) );
 575             return 0;
 576         }
 577         strcpyW(buf, driver);
 578     }
 579
 580     if (!(funcs = DRIVER_load_driver( buf )))
 581     {
 582         ERR( "no driver found for %s\n", debugstr_w(buf) );
 583         return 0;
 584     }
 585     if (!(dc = alloc_dc_ptr( OBJ_DC ))) return 0;
 586     hdc = dc->hSelf;
 587
 588     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 589
 590     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 591           debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
 592
 593     if (funcs->pCreateDC)
 594     {
 595         if (!funcs->pCreateDC( &dc->physDev, buf, device, output, initData ))
 596         {
 597             WARN("creation aborted by device\n" );
 598             free_dc_ptr( dc );
 599             return 0;
 600         }
 601     }
 602
 603     dc->vis_rect.left   = 0;
 604     dc->vis_rect.top    = 0;
 605     dc->vis_rect.right  = GetDeviceCaps( hdc, DESKTOPHORZRES );
 606     dc->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
 607
 608     DC_InitDC( dc );
 609     release_dc_ptr( dc );
 610     return hdc;
 611 }
 612
 613
 614 /***********************************************************************
 615  *           CreateDCA    (GDI32.@)
 616  */
 617 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 618                       const DEVMODEA *initData )
 619 {
 620     UNICODE_STRING driverW, deviceW, outputW;
 621     DEVMODEW *initDataW;
 622     HDC ret;
 623
 624     if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
 625     else driverW.Buffer = NULL;
 626
 627     if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
 628     else deviceW.Buffer = NULL;
 629
 630     if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
 631     else outputW.Buffer = NULL;
 632
 633     initDataW = NULL;
 634     if (initData)
 635     {
 636         /* don't convert initData for DISPLAY driver, it's not used */
 637         if (!driverW.Buffer || strcmpiW( driverW.Buffer, displayW ))
 638             initDataW = GdiConvertToDevmodeW(initData);
 639     }
 640
 641     ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
 642
 643     RtlFreeUnicodeString(&driverW);
 644     RtlFreeUnicodeString(&deviceW);
 645     RtlFreeUnicodeString(&outputW);
 646     HeapFree(GetProcessHeap(), 0, initDataW);
 647     return ret;
 648 }
 649
 650
 651 /***********************************************************************
 652  *           CreateICA    (GDI32.@)
 653  */
 654 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 655                           const DEVMODEA* initData )
 656 {
 657       /* Nothing special yet for ICs */
 658     return CreateDCA( driver, device, output, initData );
 659 }
 660
 661
 662 /***********************************************************************
 663  *           CreateICW    (GDI32.@)
 664  */
 665 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 666                           const DEVMODEW* initData )
 667 {
 668       /* Nothing special yet for ICs */
 669     return CreateDCW( driver, device, output, initData );
 670 }
 671
 672
 673 /***********************************************************************
 674  *           CreateCompatibleDC   (GDI32.@)
 675  */
 676 HDC WINAPI CreateCompatibleDC( HDC hdc )
 677 {
 678     DC *dc, *origDC;
 679     HDC ret;
 680     const struct gdi_dc_funcs *funcs = &null_driver;
 681     PHYSDEV physDev = NULL;
 682
 683     GDI_CheckNotLock();
 684
 685     if (hdc)
 686     {
 687         if (!(origDC = get_dc_ptr( hdc ))) return 0;
 688         physDev = GET_DC_PHYSDEV( origDC, pCreateCompatibleDC );
 689         funcs = physDev->funcs;
 690         release_dc_ptr( origDC );
 691     }
 692
 693     if (!(dc = alloc_dc_ptr( OBJ_MEMDC ))) return 0;
 694
 695     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 696
 697     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 698     dc->vis_rect.left   = 0;
 699     dc->vis_rect.top    = 0;
 700     dc->vis_rect.right  = 1;
 701     dc->vis_rect.bottom = 1;
 702
 703     ret = dc->hSelf;
 704
 705     if (!funcs->pCreateCompatibleDC( physDev, &dc->physDev ))
 706     {
 707         WARN("creation aborted by device\n");
 708         free_dc_ptr( dc );
 709         return 0;
 710     }
 711     DC_InitDC( dc );
 712     release_dc_ptr( dc );
 713     return ret;
 714 }
 715
 716
 717 /***********************************************************************
 718  *           DeleteDC    (GDI32.@)
 719  */
 720 BOOL WINAPI DeleteDC( HDC hdc )
 721 {
 722     DC * dc;
 723
 724     TRACE("%p\n", hdc );
 725
 726     GDI_CheckNotLock();
 727
 728     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
 729     if (dc->refcount != 1)
 730     {
 731         FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
 732         release_dc_ptr( dc );
 733         return FALSE;
 734     }
 735
 736     /* Call hook procedure to check whether is it OK to delete this DC */
 737     if (dc->hookProc && !dc->hookProc( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ))
 738     {
 739         release_dc_ptr( dc );
 740         return TRUE;
 741     }
 742
 743     while (dc->saveLevel)
 744     {
 745         DC *dcs = dc->saved_dc;
 746         dc->saved_dc = dcs->saved_dc;
 747         dc->saveLevel--;
 748         free_dc_state( dcs );
 749     }
 750
 751     AbortPath( hdc );
 752     SelectObject( hdc, GetStockObject(BLACK_PEN) );
 753     SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 754     SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 755     SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 756
 757     free_dc_ptr( dc );
 758     return TRUE;
 759 }
 760
 761
 762 /***********************************************************************
 763  *           ResetDCW    (GDI32.@)
 764  */
 765 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 766 {
 767     DC *dc;
 768     HDC ret = 0;
 769
 770     if ((dc = get_dc_ptr( hdc )))
 771     {
 772         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pResetDC );
 773         ret = physdev->funcs->pResetDC( physdev, devmode );
 774         if (ret)  /* reset the visible region */
 775         {
 776             dc->dirty = 0;
 777             dc->vis_rect.left   = 0;
 778             dc->vis_rect.top    = 0;
 779             dc->vis_rect.right  = GetDeviceCaps( hdc, DESKTOPHORZRES );
 780             dc->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
 781             if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 782             dc->hVisRgn = 0;
 783             update_dc_clipping( dc );
 784         }
 785         release_dc_ptr( dc );
 786     }
 787     return ret;
 788 }
 789
 790
 791 /***********************************************************************
 792  *           ResetDCA    (GDI32.@)
 793  */
 794 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 795 {
 796     DEVMODEW *devmodeW;
 797     HDC ret;
 798
 799     if (devmode) devmodeW = GdiConvertToDevmodeW(devmode);
 800     else devmodeW = NULL;
 801
 802     ret = ResetDCW(hdc, devmodeW);
 803
 804     HeapFree(GetProcessHeap(), 0, devmodeW);
 805     return ret;
 806 }
 807
 808
 809 /***********************************************************************
 810  *           GetDeviceCaps    (GDI32.@)
 811  */
 812 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 813 {
 814     DC *dc;
 815     INT ret = 0;
 816
 817     if ((dc = get_dc_ptr( hdc )))
 818     {
 819         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetDeviceCaps );
 820         ret = physdev->funcs->pGetDeviceCaps( physdev, cap );
 821         release_dc_ptr( dc );
 822     }
 823     return ret;
 824 }
 825
 826
 827 /***********************************************************************
 828  *              GetBkColor (GDI32.@)
 829  */
 830 COLORREF WINAPI GetBkColor( HDC hdc )
 831 {
 832     COLORREF ret = 0;
 833     DC * dc = get_dc_ptr( hdc );
 834     if (dc)
 835     {
 836         ret = dc->backgroundColor;
 837         release_dc_ptr( dc );
 838     }
 839     return ret;
 840 }
 841
 842
 843 /***********************************************************************
 844  *           SetBkColor    (GDI32.@)
 845  */
 846 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 847 {
 848     COLORREF ret = CLR_INVALID;
 849     DC * dc = get_dc_ptr( hdc );
 850
 851     TRACE("hdc=%p color=0x%08x\n", hdc, color);
 852
 853     if (dc)
 854     {
 855         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetBkColor );
 856         ret = dc->backgroundColor;
 857         dc->backgroundColor = physdev->funcs->pSetBkColor( physdev, color );
 858         release_dc_ptr( dc );
 859     }
 860     return ret;
 861 }
 862
 863
 864 /***********************************************************************
 865  *              GetTextColor (GDI32.@)
 866  */
 867 COLORREF WINAPI GetTextColor( HDC hdc )
 868 {
 869     COLORREF ret = 0;
 870     DC * dc = get_dc_ptr( hdc );
 871     if (dc)
 872     {
 873         ret = dc->textColor;
 874         release_dc_ptr( dc );
 875     }
 876     return ret;
 877 }
 878
 879
 880 /***********************************************************************
 881  *           SetTextColor    (GDI32.@)
 882  */
 883 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 884 {
 885     COLORREF ret = CLR_INVALID;
 886     DC * dc = get_dc_ptr( hdc );
 887
 888     TRACE(" hdc=%p color=0x%08x\n", hdc, color);
 889
 890     if (dc)
 891     {
 892         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetTextColor );
 893         ret = dc->textColor;
 894         dc->textColor = physdev->funcs->pSetTextColor( physdev, color );
 895         release_dc_ptr( dc );
 896     }
 897     return ret;
 898 }
 899
 900
 901 /***********************************************************************
 902  *              GetTextAlign (GDI32.@)
 903  */
 904 UINT WINAPI GetTextAlign( HDC hdc )
 905 {
 906     UINT ret = 0;
 907     DC * dc = get_dc_ptr( hdc );
 908     if (dc)
 909     {
 910         ret = dc->textAlign;
 911         release_dc_ptr( dc );
 912     }
 913     return ret;
 914 }
 915
 916
 917 /***********************************************************************
 918  *           SetTextAlign    (GDI32.@)
 919  */
 920 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 921 {
 922     UINT ret = GDI_ERROR;
 923     DC *dc = get_dc_ptr( hdc );
 924
 925     TRACE("hdc=%p align=%d\n", hdc, align);
 926
 927     if (dc)
 928     {
 929         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetTextAlign );
 930         align = physdev->funcs->pSetTextAlign( physdev, align );
 931         if (align != GDI_ERROR)
 932         {
 933             ret = dc->textAlign;
 934             dc->textAlign = align;
 935         }
 936         release_dc_ptr( dc );
 937     }
 938     return ret;
 939 }
 940
 941 /***********************************************************************
 942  *           GetDCOrgEx  (GDI32.@)
 943  */
 944 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 945 {
 946     DC * dc;
 947
 948     if (!lpp) return FALSE;
 949     if (!(dc = get_dc_ptr( hDC ))) return FALSE;
 950     lpp->x = dc->vis_rect.left;
 951     lpp->y = dc->vis_rect.top;
 952     release_dc_ptr( dc );
 953     return TRUE;
 954 }
 955
 956
 957 /***********************************************************************
 958  *              GetGraphicsMode (GDI32.@)
 959  */
 960 INT WINAPI GetGraphicsMode( HDC hdc )
 961 {
 962     INT ret = 0;
 963     DC * dc = get_dc_ptr( hdc );
 964     if (dc)
 965     {
 966         ret = dc->GraphicsMode;
 967         release_dc_ptr( dc );
 968     }
 969     return ret;
 970 }
 971
 972
 973 /***********************************************************************
 974  *           SetGraphicsMode    (GDI32.@)
 975  */
 976 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 977 {
 978     INT ret = 0;
 979     DC *dc = get_dc_ptr( hdc );
 980
 981     /* One would think that setting the graphics mode to GM_COMPATIBLE
 982      * would also reset the world transformation matrix to the unity
 983      * matrix. However, in Windows, this is not the case. This doesn't
 984      * make a lot of sense to me, but that's the way it is.
 985      */
 986     if (!dc) return 0;
 987     if ((mode > 0) && (mode <= GM_LAST))
 988     {
 989         ret = dc->GraphicsMode;
 990         dc->GraphicsMode = mode;
 991     }
 992     release_dc_ptr( dc );
 993     return ret;
 994 }
 995
 996
 997 /***********************************************************************
 998  *              GetArcDirection (GDI32.@)
 999  */
1000 INT WINAPI GetArcDirection( HDC hdc )
1001 {
1002     INT ret = 0;
1003     DC * dc = get_dc_ptr( hdc );
1004     if (dc)
1005     {
1006         ret = dc->ArcDirection;
1007         release_dc_ptr( dc );
1008     }
1009     return ret;
1010 }
1011
1012
1013 /***********************************************************************
1014  *           SetArcDirection    (GDI32.@)
1015  */
1016 INT WINAPI SetArcDirection( HDC hdc, INT dir )
1017 {
1018     DC * dc;
1019     INT ret = 0;
1020
1021     if (dir != AD_COUNTERCLOCKWISE && dir != AD_CLOCKWISE)
1022     {
1023         SetLastError(ERROR_INVALID_PARAMETER);
1024         return 0;
1025     }
1026
1027     if ((dc = get_dc_ptr( hdc )))
1028     {
1029         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetArcDirection );
1030         dir = physdev->funcs->pSetArcDirection( physdev, dir );
1031         if (dir)
1032         {
1033             ret = dc->ArcDirection;
1034             dc->ArcDirection = dir;
1035         }
1036         release_dc_ptr( dc );
1037     }
1038     return ret;
1039 }
1040
1041
1042 /***********************************************************************
1043  *           GetWorldTransform    (GDI32.@)
1044  */
1045 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1046 {
1047     DC * dc;
1048     if (!xform) return FALSE;
1049     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
1050     *xform = dc->xformWorld2Wnd;
1051     release_dc_ptr( dc );
1052     return TRUE;
1053 }
1054
1055
1056 /***********************************************************************
1057  *           GetTransform    (GDI32.@)
1058  *
1059  * Undocumented
1060  *
1061  * Returns one of the co-ordinate space transforms
1062  *
1063  * PARAMS
1064  *    hdc   [I] Device context.
1065  *    which [I] Which xform to return:
1066  *                  0x203 World -> Page transform (that set by SetWorldTransform).
1067  *                  0x304 Page -> Device transform (the mapping mode transform).
1068  *                  0x204 World -> Device transform (the combination of the above two).
1069  *                  0x402 Device -> World transform (the inversion of the above).
1070  *    xform [O] The xform.
1071  *
1072  */
1073 BOOL WINAPI GetTransform( HDC hdc, DWORD which, XFORM *xform )
1074 {
1075     BOOL ret = TRUE;
1076     DC *dc = get_dc_ptr( hdc );
1077     if (!dc) return FALSE;
1078
1079     switch(which)
1080     {
1081     case 0x203:
1082         *xform = dc->xformWorld2Wnd;
1083         break;
1084
1085     case 0x304:
1086         construct_window_to_viewport(dc, xform);
1087         break;
1088
1089     case 0x204:
1090         *xform = dc->xformWorld2Vport;
1091         break;
1092
1093     case 0x402:
1094         *xform = dc->xformVport2World;
1095         break;
1096
1097     default:
1098         FIXME("Unknown code %x\n", which);
1099         ret = FALSE;
1100     }
1101
1102     release_dc_ptr( dc );
1103     return ret;
1104 }
1105
1106
1107 /****************************************************************************
1108  * CombineTransform [GDI32.@]
1109  * Combines two transformation matrices.
1110  *
1111  * PARAMS
1112  *    xformResult [O] Stores the result of combining the two matrices
1113  *    xform1      [I] Specifies the first matrix to apply
1114  *    xform2      [I] Specifies the second matrix to apply
1115  *
1116  * REMARKS
1117  *    The same matrix can be passed in for more than one of the parameters.
1118  *
1119  * RETURNS
1120  *  Success: TRUE.
1121  *  Failure: FALSE. Use GetLastError() to determine the cause.
1122  */
1123 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1124     const XFORM *xform2 )
1125 {
1126     XFORM xformTemp;
1127
1128     /* Check for illegal parameters */
1129     if (!xformResult || !xform1 || !xform2)
1130         return FALSE;
1131
1132     /* Create the result in a temporary XFORM, since xformResult may be
1133      * equal to xform1 or xform2 */
1134     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1135                      xform1->eM12 * xform2->eM21;
1136     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1137                      xform1->eM12 * xform2->eM22;
1138     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1139                      xform1->eM22 * xform2->eM21;
1140     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1141                      xform1->eM22 * xform2->eM22;
1142     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1143                      xform1->eDy  * xform2->eM21 +
1144                      xform2->eDx;
1145     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1146                      xform1->eDy  * xform2->eM22 +
1147                      xform2->eDy;
1148
1149     /* Copy the result to xformResult */
1150     *xformResult = xformTemp;
1151
1152     return TRUE;
1153 }
1154
1155
1156 /***********************************************************************
1157  *           SetDCHook   (GDI32.@)
1158  *
1159  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1160  */
1161 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD_PTR dwHookData )
1162 {
1163     DC *dc = get_dc_ptr( hdc );
1164
1165     if (!dc) return FALSE;
1166
1167     dc->dwHookData = dwHookData;
1168     dc->hookProc = hookProc;
1169     release_dc_ptr( dc );
1170     return TRUE;
1171 }
1172
1173
1174 /***********************************************************************
1175  *           GetDCHook   (GDI32.@)
1176  *
1177  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1178  */
1179 DWORD_PTR WINAPI GetDCHook( HDC hdc, DCHOOKPROC *proc )
1180 {
1181     DC *dc = get_dc_ptr( hdc );
1182     DWORD_PTR ret;
1183
1184     if (!dc) return 0;
1185     if (proc) *proc = dc->hookProc;
1186     ret = dc->dwHookData;
1187     release_dc_ptr( dc );
1188     return ret;
1189 }
1190
1191
1192 /***********************************************************************
1193  *           SetHookFlags   (GDI32.@)
1194  *
1195  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1196  */
1197 WORD WINAPI SetHookFlags( HDC hdc, WORD flags )
1198 {
1199     DC *dc = get_dc_obj( hdc );  /* not get_dc_ptr, this needs to work from any thread */
1200     LONG ret = 0;
1201
1202     if (!dc) return 0;
1203
1204     /* "Undocumented Windows" info is slightly confusing. */
1205
1206     TRACE("hDC %p, flags %04x\n",hdc,flags);
1207
1208     if (flags & DCHF_INVALIDATEVISRGN)
1209         ret = InterlockedExchange( &dc->dirty, 1 );
1210     else if (flags & DCHF_VALIDATEVISRGN || !flags)
1211         ret = InterlockedExchange( &dc->dirty, 0 );
1212
1213     GDI_ReleaseObj( hdc );
1214     return ret;
1215 }
1216
1217 /***********************************************************************
1218  *           SetICMMode    (GDI32.@)
1219  */
1220 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1221 {
1222 /*FIXME:  Assume that ICM is always off, and cannot be turned on */
1223     if (iEnableICM == ICM_OFF) return ICM_OFF;
1224     if (iEnableICM == ICM_ON) return 0;
1225     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1226     return 0;
1227 }
1228
1229 /***********************************************************************
1230  *           GetDeviceGammaRamp    (GDI32.@)
1231  */
1232 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1233 {
1234     BOOL ret = FALSE;
1235     DC *dc = get_dc_ptr( hDC );
1236
1237     TRACE("%p, %p\n", hDC, ptr);
1238     if( dc )
1239     {
1240         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetDeviceGammaRamp );
1241         ret = physdev->funcs->pGetDeviceGammaRamp( physdev, ptr );
1242         release_dc_ptr( dc );
1243     }
1244     return ret;
1245 }
1246
1247 /***********************************************************************
1248  *           SetDeviceGammaRamp    (GDI32.@)
1249  */
1250 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1251 {
1252     BOOL ret = FALSE;
1253     DC *dc = get_dc_ptr( hDC );
1254
1255     TRACE("%p, %p\n", hDC, ptr);
1256     if( dc )
1257     {
1258         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDeviceGammaRamp );
1259         ret = physdev->funcs->pSetDeviceGammaRamp( physdev, ptr );
1260         release_dc_ptr( dc );
1261     }
1262     return ret;
1263 }
1264
1265 /***********************************************************************
1266  *           GetColorSpace    (GDI32.@)
1267  */
1268 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1269 {
1270 /*FIXME    Need to do whatever GetColorSpace actually does */
1271     return 0;
1272 }
1273
1274 /***********************************************************************
1275  *           CreateColorSpaceA    (GDI32.@)
1276  */
1277 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1278 {
1279   FIXME( "stub\n" );
1280   return 0;
1281 }
1282
1283 /***********************************************************************
1284  *           CreateColorSpaceW    (GDI32.@)
1285  */
1286 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1287 {
1288   FIXME( "stub\n" );
1289   return 0;
1290 }
1291
1292 /***********************************************************************
1293  *           DeleteColorSpace     (GDI32.@)
1294  */
1295 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1296 {
1297   FIXME( "stub\n" );
1298
1299   return TRUE;
1300 }
1301
1302 /***********************************************************************
1303  *           SetColorSpace     (GDI32.@)
1304  */
1305 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1306 {
1307   FIXME( "stub\n" );
1308
1309   return hColorSpace;
1310 }
1311
1312 /***********************************************************************
1313  *           GetBoundsRect    (GDI32.@)
1314  */
1315 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1316 {
1317     UINT ret = 0;
1318     DC *dc = get_dc_ptr( hdc );
1319
1320     if ( !dc ) return 0;
1321
1322     if (rect)
1323     {
1324         *rect = dc->BoundsRect;
1325         ret = is_rect_empty( rect ) ? DCB_RESET : DCB_SET;
1326         DPtoLP( hdc, (POINT *)rect, 2 );
1327     }
1328     if (flags & DCB_RESET)
1329     {
1330         dc->BoundsRect.left   = 0;
1331         dc->BoundsRect.top    = 0;
1332         dc->BoundsRect.right  = 0;
1333         dc->BoundsRect.bottom = 0;
1334     }
1335     release_dc_ptr( dc );
1336     return ret;
1337 }
1338
1339
1340 /***********************************************************************
1341  *           SetBoundsRect    (GDI32.@)
1342  */
1343 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1344 {
1345     UINT ret;
1346     DC *dc;
1347
1348     if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
1349     if (!(dc = get_dc_ptr( hdc ))) return 0;
1350
1351     ret = ((dc->flags & DC_BOUNDS_ENABLE) ? DCB_ENABLE : DCB_DISABLE) |
1352            (is_rect_empty( &dc->BoundsRect ) ? DCB_RESET : DCB_SET);
1353
1354     if (flags & DCB_RESET)
1355     {
1356         dc->BoundsRect.left   = 0;
1357         dc->BoundsRect.top    = 0;
1358         dc->BoundsRect.right  = 0;
1359         dc->BoundsRect.bottom = 0;
1360     }
1361
1362     if ((flags & DCB_ACCUMULATE) && rect)
1363     {
1364         RECT rc = *rect;
1365
1366         LPtoDP( hdc, (POINT *)&rc, 2 );
1367         if (!is_rect_empty( &rc ))
1368         {
1369             if (!is_rect_empty( &dc->BoundsRect))
1370             {
1371                 dc->BoundsRect.left   = min( dc->BoundsRect.left, rc.left );
1372                 dc->BoundsRect.top    = min( dc->BoundsRect.top, rc.top );
1373                 dc->BoundsRect.right  = max( dc->BoundsRect.right, rc.right );
1374                 dc->BoundsRect.bottom = max( dc->BoundsRect.bottom, rc.bottom );
1375             }
1376             else dc->BoundsRect = rc;
1377         }
1378     }
1379
1380     if (flags & DCB_ENABLE) dc->flags |= DC_BOUNDS_ENABLE;
1381     if (flags & DCB_DISABLE) dc->flags &= ~DC_BOUNDS_ENABLE;
1382
1383     release_dc_ptr( dc );
1384     return ret;
1385 }
1386
1387
1388 /***********************************************************************
1389  *              GetRelAbs               (GDI32.@)
1390  */
1391 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1392 {
1393     INT ret = 0;
1394     DC *dc = get_dc_ptr( hdc );
1395     if (dc)
1396     {
1397         ret = dc->relAbsMode;
1398         release_dc_ptr( dc );
1399     }
1400     return ret;
1401 }
1402
1403
1404
1405
1406 /***********************************************************************
1407  *              GetBkMode (GDI32.@)
1408  */
1409 INT WINAPI GetBkMode( HDC hdc )
1410 {
1411     INT ret = 0;
1412     DC * dc = get_dc_ptr( hdc );
1413     if (dc)
1414     {
1415         ret = dc->backgroundMode;
1416         release_dc_ptr( dc );
1417     }
1418     return ret;
1419 }
1420
1421
1422 /***********************************************************************
1423  *              SetBkMode (GDI32.@)
1424  */
1425 INT WINAPI SetBkMode( HDC hdc, INT mode )
1426 {
1427     INT ret = 0;
1428     DC *dc;
1429
1430     if ((mode <= 0) || (mode > BKMODE_LAST))
1431     {
1432         SetLastError(ERROR_INVALID_PARAMETER);
1433         return 0;
1434     }
1435     if ((dc = get_dc_ptr( hdc )))
1436     {
1437         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetBkMode );
1438         mode = physdev->funcs->pSetBkMode( physdev, mode );
1439         if (mode)
1440         {
1441             ret = dc->backgroundMode;
1442             dc->backgroundMode = mode;
1443         }
1444         release_dc_ptr( dc );
1445     }
1446     return ret;
1447 }
1448
1449
1450 /***********************************************************************
1451  *              GetROP2 (GDI32.@)
1452  */
1453 INT WINAPI GetROP2( HDC hdc )
1454 {
1455     INT ret = 0;
1456     DC * dc = get_dc_ptr( hdc );
1457     if (dc)
1458     {
1459         ret = dc->ROPmode;
1460         release_dc_ptr( dc );
1461     }
1462     return ret;
1463 }
1464
1465
1466 /***********************************************************************
1467  *              SetROP2 (GDI32.@)
1468  */
1469 INT WINAPI SetROP2( HDC hdc, INT mode )
1470 {
1471     INT ret = 0;
1472     DC *dc;
1473
1474     if ((mode < R2_BLACK) || (mode > R2_WHITE))
1475     {
1476         SetLastError(ERROR_INVALID_PARAMETER);
1477         return 0;
1478     }
1479     if ((dc = get_dc_ptr( hdc )))
1480     {
1481         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetROP2 );
1482         mode = physdev->funcs->pSetROP2( physdev, mode );
1483         if (mode)
1484         {
1485             ret = dc->ROPmode;
1486             dc->ROPmode = mode;
1487         }
1488         release_dc_ptr( dc );
1489     }
1490     return ret;
1491 }
1492
1493
1494 /***********************************************************************
1495  *              SetRelAbs (GDI32.@)
1496  */
1497 INT WINAPI SetRelAbs( HDC hdc, INT mode )
1498 {
1499     INT ret = 0;
1500     DC *dc;
1501
1502     if ((mode != ABSOLUTE) && (mode != RELATIVE))
1503     {
1504         SetLastError(ERROR_INVALID_PARAMETER);
1505         return 0;
1506     }
1507     if ((dc = get_dc_ptr( hdc )))
1508     {
1509         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetRelAbs );
1510         mode = physdev->funcs->pSetRelAbs( physdev, mode );
1511         if (mode)
1512         {
1513             ret = dc->relAbsMode;
1514             dc->relAbsMode = mode;
1515         }
1516         release_dc_ptr( dc );
1517     }
1518     return ret;
1519 }
1520
1521
1522 /***********************************************************************
1523  *              GetPolyFillMode (GDI32.@)
1524  */
1525 INT WINAPI GetPolyFillMode( HDC hdc )
1526 {
1527     INT ret = 0;
1528     DC * dc = get_dc_ptr( hdc );
1529     if (dc)
1530     {
1531         ret = dc->polyFillMode;
1532         release_dc_ptr( dc );
1533     }
1534     return ret;
1535 }
1536
1537
1538 /***********************************************************************
1539  *              SetPolyFillMode (GDI32.@)
1540  */
1541 INT WINAPI SetPolyFillMode( HDC hdc, INT mode )
1542 {
1543     INT ret = 0;
1544     DC *dc;
1545
1546     if ((mode <= 0) || (mode > POLYFILL_LAST))
1547     {
1548         SetLastError(ERROR_INVALID_PARAMETER);
1549         return 0;
1550     }
1551     if ((dc = get_dc_ptr( hdc )))
1552     {
1553         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetPolyFillMode );
1554         mode = physdev->funcs->pSetPolyFillMode( physdev, mode );
1555         if (mode)
1556         {
1557             ret = dc->polyFillMode;
1558             dc->polyFillMode = mode;
1559         }
1560         release_dc_ptr( dc );
1561     }
1562     return ret;
1563 }
1564
1565
1566 /***********************************************************************
1567  *              GetStretchBltMode (GDI32.@)
1568  */
1569 INT WINAPI GetStretchBltMode( HDC hdc )
1570 {
1571     INT ret = 0;
1572     DC * dc = get_dc_ptr( hdc );
1573     if (dc)
1574     {
1575         ret = dc->stretchBltMode;
1576         release_dc_ptr( dc );
1577     }
1578     return ret;
1579 }
1580
1581
1582 /***********************************************************************
1583  *              SetStretchBltMode (GDI32.@)
1584  */
1585 INT WINAPI SetStretchBltMode( HDC hdc, INT mode )
1586 {
1587     INT ret = 0;
1588     DC *dc;
1589
1590     if ((mode <= 0) || (mode > MAXSTRETCHBLTMODE))
1591     {
1592         SetLastError(ERROR_INVALID_PARAMETER);
1593         return 0;
1594     }
1595     if ((dc = get_dc_ptr( hdc )))
1596     {
1597         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetStretchBltMode );
1598         mode = physdev->funcs->pSetStretchBltMode( physdev, mode );
1599         if (mode)
1600         {
1601             ret = dc->stretchBltMode;
1602             dc->stretchBltMode = mode;
1603         }
1604         release_dc_ptr( dc );
1605     }
1606     return ret;
1607 }
1608
1609
1610 /***********************************************************************
1611  *              GetMapMode (GDI32.@)
1612  */
1613 INT WINAPI GetMapMode( HDC hdc )
1614 {
1615     INT ret = 0;
1616     DC * dc = get_dc_ptr( hdc );
1617     if (dc)
1618     {
1619         ret = dc->MapMode;
1620         release_dc_ptr( dc );
1621     }
1622     return ret;
1623 }
1624
1625
1626 /***********************************************************************
1627  *              GetBrushOrgEx (GDI32.@)
1628  */
1629 BOOL WINAPI GetBrushOrgEx( HDC hdc, LPPOINT pt )
1630 {
1631     DC * dc = get_dc_ptr( hdc );
1632     if (!dc) return FALSE;
1633     pt->x = dc->brushOrgX;
1634     pt->y = dc->brushOrgY;
1635     release_dc_ptr( dc );
1636     return TRUE;
1637 }
1638
1639
1640 /***********************************************************************
1641  *              GetCurrentPositionEx (GDI32.@)
1642  */
1643 BOOL WINAPI GetCurrentPositionEx( HDC hdc, LPPOINT pt )
1644 {
1645     DC * dc = get_dc_ptr( hdc );
1646     if (!dc) return FALSE;
1647     pt->x = dc->CursPosX;
1648     pt->y = dc->CursPosY;
1649     release_dc_ptr( dc );
1650     return TRUE;
1651 }
1652
1653
1654 /***********************************************************************
1655  *              GetViewportExtEx (GDI32.@)
1656  */
1657 BOOL WINAPI GetViewportExtEx( HDC hdc, LPSIZE size )
1658 {
1659     DC * dc = get_dc_ptr( hdc );
1660     if (!dc) return FALSE;
1661     size->cx = dc->vportExtX;
1662     size->cy = dc->vportExtY;
1663     release_dc_ptr( dc );
1664     return TRUE;
1665 }
1666
1667
1668 /***********************************************************************
1669  *              GetViewportOrgEx (GDI32.@)
1670  */
1671 BOOL WINAPI GetViewportOrgEx( HDC hdc, LPPOINT pt )
1672 {
1673     DC * dc = get_dc_ptr( hdc );
1674     if (!dc) return FALSE;
1675     pt->x = dc->vportOrgX;
1676     pt->y = dc->vportOrgY;
1677     release_dc_ptr( dc );
1678     return TRUE;
1679 }
1680
1681
1682 /***********************************************************************
1683  *              GetWindowExtEx (GDI32.@)
1684  */
1685 BOOL WINAPI GetWindowExtEx( HDC hdc, LPSIZE size )
1686 {
1687     DC * dc = get_dc_ptr( hdc );
1688     if (!dc) return FALSE;
1689     size->cx = dc->wndExtX;
1690     size->cy = dc->wndExtY;
1691     release_dc_ptr( dc );
1692     return TRUE;
1693 }
1694
1695
1696 /***********************************************************************
1697  *              GetWindowOrgEx (GDI32.@)
1698  */
1699 BOOL WINAPI GetWindowOrgEx( HDC hdc, LPPOINT pt )
1700 {
1701     DC * dc = get_dc_ptr( hdc );
1702     if (!dc) return FALSE;
1703     pt->x = dc->wndOrgX;
1704     pt->y = dc->wndOrgY;
1705     release_dc_ptr( dc );
1706     return TRUE;
1707 }
1708
1709
1710 /***********************************************************************
1711  *           GetLayout    (GDI32.@)
1712  *
1713  * Gets left->right or right->left text layout flags of a dc.
1714  *
1715  */
1716 DWORD WINAPI GetLayout(HDC hdc)
1717 {
1718     DWORD layout = GDI_ERROR;
1719
1720     DC * dc = get_dc_ptr( hdc );
1721     if (dc)
1722     {
1723         layout = dc->layout;
1724         release_dc_ptr( dc );
1725     }
1726
1727     TRACE("hdc : %p, layout : %08x\n", hdc, layout);
1728
1729     return layout;
1730 }
1731
1732 /***********************************************************************
1733  *           SetLayout    (GDI32.@)
1734  *
1735  * Sets left->right or right->left text layout flags of a dc.
1736  *
1737  */
1738 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1739 {
1740     DWORD oldlayout = GDI_ERROR;
1741
1742     DC * dc = get_dc_ptr( hdc );
1743     if (dc)
1744     {
1745         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetLayout );
1746         layout = physdev->funcs->pSetLayout( physdev, layout );
1747         if (layout != GDI_ERROR)
1748         {
1749             oldlayout = dc->layout;
1750             dc->layout = layout;
1751             if (layout != oldlayout)
1752             {
1753                 if (layout & LAYOUT_RTL) dc->MapMode = MM_ANISOTROPIC;
1754                 DC_UpdateXforms( dc );
1755             }
1756         }
1757         release_dc_ptr( dc );
1758     }
1759
1760     TRACE("hdc : %p, old layout : %08x, new layout : %08x\n", hdc, oldlayout, layout);
1761
1762     return oldlayout;
1763 }
1764
1765 /***********************************************************************
1766  *           GetDCBrushColor    (GDI32.@)
1767  */
1768 COLORREF WINAPI GetDCBrushColor(HDC hdc)
1769 {
1770     DC *dc;
1771     COLORREF dcBrushColor = CLR_INVALID;
1772
1773     TRACE("hdc(%p)\n", hdc);
1774
1775     dc = get_dc_ptr( hdc );
1776     if (dc)
1777     {
1778         dcBrushColor = dc->dcBrushColor;
1779         release_dc_ptr( dc );
1780     }
1781
1782     return dcBrushColor;
1783 }
1784
1785 /***********************************************************************
1786  *           SetDCBrushColor    (GDI32.@)
1787  */
1788 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1789 {
1790     DC *dc;
1791     COLORREF oldClr = CLR_INVALID;
1792
1793     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
1794
1795     dc = get_dc_ptr( hdc );
1796     if (dc)
1797     {
1798         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDCBrushColor );
1799         crColor = physdev->funcs->pSetDCBrushColor( physdev, crColor );
1800         if (crColor != CLR_INVALID)
1801         {
1802             oldClr = dc->dcBrushColor;
1803             dc->dcBrushColor = crColor;
1804         }
1805         release_dc_ptr( dc );
1806     }
1807
1808     return oldClr;
1809 }
1810
1811 /***********************************************************************
1812  *           GetDCPenColor    (GDI32.@)
1813  */
1814 COLORREF WINAPI GetDCPenColor(HDC hdc)
1815 {
1816     DC *dc;
1817     COLORREF dcPenColor = CLR_INVALID;
1818
1819     TRACE("hdc(%p)\n", hdc);
1820
1821     dc = get_dc_ptr( hdc );
1822     if (dc)
1823     {
1824         dcPenColor = dc->dcPenColor;
1825         release_dc_ptr( dc );
1826     }
1827
1828     return dcPenColor;
1829 }
1830
1831 /***********************************************************************
1832  *           SetDCPenColor    (GDI32.@)
1833  */
1834 COLORREF WINAPI SetDCPenColor(HDC hdc, COLORREF crColor)
1835 {
1836     DC *dc;
1837     COLORREF oldClr = CLR_INVALID;
1838
1839     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
1840
1841     dc = get_dc_ptr( hdc );
1842     if (dc)
1843     {
1844         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDCPenColor );
1845         crColor = physdev->funcs->pSetDCPenColor( physdev, crColor );
1846         if (crColor != CLR_INVALID)
1847         {
1848             oldClr = dc->dcPenColor;
1849             dc->dcPenColor = crColor;
1850         }
1851         release_dc_ptr( dc );
1852     }
1853
1854     return oldClr;
1855 }
1856
1857 /***********************************************************************
1858  *           CancelDC    (GDI32.@)
1859  */
1860 BOOL WINAPI CancelDC(HDC hdc)
1861 {
1862     FIXME("stub\n");
1863     return TRUE;
1864 }
1865
1866 /*******************************************************************
1867  *      GetMiterLimit [GDI32.@]
1868  *
1869  *
1870  */
1871 BOOL WINAPI GetMiterLimit(HDC hdc, PFLOAT peLimit)
1872 {
1873     BOOL bRet = FALSE;
1874     DC *dc;
1875
1876     TRACE("(%p,%p)\n", hdc, peLimit);
1877
1878     dc = get_dc_ptr( hdc );
1879     if (dc)
1880     {
1881         if (peLimit)
1882             *peLimit = dc->miterLimit;
1883
1884         release_dc_ptr( dc );
1885         bRet = TRUE;
1886     }
1887     return bRet;
1888 }
1889
1890 /*******************************************************************
1891  *      SetMiterLimit [GDI32.@]
1892  *
1893  *
1894  */
1895 BOOL WINAPI SetMiterLimit(HDC hdc, FLOAT eNewLimit, PFLOAT peOldLimit)
1896 {
1897     BOOL bRet = FALSE;
1898     DC *dc;
1899
1900     TRACE("(%p,%f,%p)\n", hdc, eNewLimit, peOldLimit);
1901
1902     dc = get_dc_ptr( hdc );
1903     if (dc)
1904     {
1905         if (peOldLimit)
1906             *peOldLimit = dc->miterLimit;
1907         dc->miterLimit = eNewLimit;
1908         release_dc_ptr( dc );
1909         bRet = TRUE;
1910     }
1911     return bRet;
1912 }
1913
1914 /*******************************************************************
1915  *      GdiIsMetaPrintDC [GDI32.@]
1916  */
1917 BOOL WINAPI GdiIsMetaPrintDC(HDC hdc)
1918 {
1919     FIXME("%p\n", hdc);
1920     return FALSE;
1921 }
1922
1923 /*******************************************************************
1924  *      GdiIsMetaFileDC [GDI32.@]
1925  */
1926 BOOL WINAPI GdiIsMetaFileDC(HDC hdc)
1927 {
1928     TRACE("%p\n", hdc);
1929
1930     switch( GetObjectType( hdc ) )
1931     {
1932     case OBJ_METADC:
1933     case OBJ_ENHMETADC:
1934         return TRUE;
1935     }
1936     return FALSE;
1937 }
1938
1939 /*******************************************************************
1940  *      GdiIsPlayMetafileDC [GDI32.@]
1941  */
1942 BOOL WINAPI GdiIsPlayMetafileDC(HDC hdc)
1943 {
1944     FIXME("%p\n", hdc);
1945     return FALSE;
1946 }