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