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