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