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 = pop_dc_driver( &dc->physDev );
 160         physdev->funcs->pDeleteDC( physdev );
 161         if (physdev == dc->dibdrv) dc->dibdrv = NULL;
 162     }
 163     if (dc->dibdrv) dc->dibdrv->funcs->pDeleteDC( dc->dibdrv );
 164     free_gdi_handle( dc->hSelf );
 165     free_dc_state( dc );
 166 }
 167
 168
 169 /***********************************************************************
 170  *           get_dc_ptr
 171  *
 172  * Retrieve a DC pointer but release the GDI lock.
 173  */
 174 DC *get_dc_ptr( HDC hdc )
 175 {
 176     DC *dc = get_dc_obj( hdc );
 177     if (!dc) return NULL;
 178
 179     if (!InterlockedCompareExchange( &dc->refcount, 1, 0 ))
 180     {
 181         dc->thread = GetCurrentThreadId();
 182     }
 183     else if (dc->thread != GetCurrentThreadId())
 184     {
 185         WARN( "dc %p belongs to thread %04x\n", hdc, dc->thread );
 186         GDI_ReleaseObj( hdc );
 187         return NULL;
 188     }
 189     else InterlockedIncrement( &dc->refcount );
 190
 191     GDI_ReleaseObj( hdc );
 192     return dc;
 193 }
 194
 195
 196 /***********************************************************************
 197  *           release_dc_ptr
 198  */
 199 void release_dc_ptr( DC *dc )
 200 {
 201     LONG ref;
 202
 203     dc->thread = 0;
 204     ref = InterlockedDecrement( &dc->refcount );
 205     assert( ref >= 0 );
 206     if (ref) dc->thread = GetCurrentThreadId();  /* we still own it */
 207 }
 208
 209
 210 /***********************************************************************
 211  *           update_dc
 212  *
 213  * Make sure the DC vis region is up to date.
 214  * This function may call up to USER so the GDI lock should _not_
 215  * be held when calling it.
 216  */
 217 void update_dc( DC *dc )
 218 {
 219     if (InterlockedExchange( &dc->dirty, 0 ) && dc->hookProc)
 220         dc->hookProc( dc->hSelf, DCHC_INVALIDVISRGN, dc->dwHookData, 0 );
 221 }
 222
 223
 224 /***********************************************************************
 225  *           DC_DeleteObject
 226  */
 227 static BOOL DC_DeleteObject( HGDIOBJ handle )
 228 {
 229     return DeleteDC( handle );
 230 }
 231
 232
 233 /***********************************************************************
 234  *           DC_InitDC
 235  *
 236  * Setup device-specific DC values for a newly created DC.
 237  */
 238 void DC_InitDC( DC* dc )
 239 {
 240     PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRealizeDefaultPalette );
 241     physdev->funcs->pRealizeDefaultPalette( physdev );
 242     SetTextColor( dc->hSelf, dc->textColor );
 243     SetBkColor( dc->hSelf, dc->backgroundColor );
 244     SelectObject( dc->hSelf, dc->hPen );
 245     SelectObject( dc->hSelf, dc->hBrush );
 246     SelectObject( dc->hSelf, dc->hFont );
 247     update_dc_clipping( dc );
 248     SetVirtualResolution( dc->hSelf, 0, 0, 0, 0 );
 249     physdev = GET_DC_PHYSDEV( dc, pSetBoundsRect );
 250     physdev->funcs->pSetBoundsRect( physdev, &dc->bounds, dc->bounds_enabled ? DCB_ENABLE : DCB_DISABLE );
 251 }
 252
 253
 254 /***********************************************************************
 255  *           DC_InvertXform
 256  *
 257  * Computes the inverse of the transformation xformSrc and stores it to
 258  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 259  * is singular.
 260  */
 261 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 262 {
 263     double determinant;
 264
 265     determinant = xformSrc->eM11*xformSrc->eM22 -
 266         xformSrc->eM12*xformSrc->eM21;
 267     if (determinant > -1e-12 && determinant < 1e-12)
 268         return FALSE;
 269
 270     xformDest->eM11 =  xformSrc->eM22 / determinant;
 271     xformDest->eM12 = -xformSrc->eM12 / determinant;
 272     xformDest->eM21 = -xformSrc->eM21 / determinant;
 273     xformDest->eM22 =  xformSrc->eM11 / determinant;
 274     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 275                        xformSrc->eDy * xformDest->eM21;
 276     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 277                        xformSrc->eDy * xformDest->eM22;
 278
 279     return TRUE;
 280 }
 281
 282 /* Construct a transformation to do the window-to-viewport conversion */
 283 static void construct_window_to_viewport(DC *dc, XFORM *xform)
 284 {
 285     double scaleX, scaleY;
 286     scaleX = (double)dc->vportExtX / (double)dc->wndExtX;
 287     scaleY = (double)dc->vportExtY / (double)dc->wndExtY;
 288
 289     if (dc->layout & LAYOUT_RTL) scaleX = -scaleX;
 290     xform->eM11 = scaleX;
 291     xform->eM12 = 0.0;
 292     xform->eM21 = 0.0;
 293     xform->eM22 = scaleY;
 294     xform->eDx  = (double)dc->vportOrgX - scaleX * (double)dc->wndOrgX;
 295     xform->eDy  = (double)dc->vportOrgY - scaleY * (double)dc->wndOrgY;
 296     if (dc->layout & LAYOUT_RTL) xform->eDx = dc->vis_rect.right - dc->vis_rect.left - 1 - xform->eDx;
 297 }
 298
 299 /***********************************************************************
 300  *           DC_UpdateXforms
 301  *
 302  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 303  * fields of the specified DC by creating a transformation that
 304  * represents the current mapping mode and combining it with the DC's
 305  * world transform. This function should be called whenever the
 306  * parameters associated with the mapping mode (window and viewport
 307  * extents and origins) or the world transform change.
 308  */
 309 void DC_UpdateXforms( DC *dc )
 310 {
 311     XFORM xformWnd2Vport, oldworld2vport;
 312
 313     construct_window_to_viewport(dc, &xformWnd2Vport);
 314
 315     oldworld2vport = dc->xformWorld2Vport;
 316     /* Combine with the world transformation */
 317     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 318         &xformWnd2Vport );
 319
 320     /* Create inverse of world-to-viewport transformation */
 321     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 322         &dc->xformVport2World );
 323
 324     /* Reselect the font and pen back into the dc so that the size
 325        gets updated. */
 326     if (memcmp(&oldworld2vport, &dc->xformWorld2Vport, sizeof(oldworld2vport)) &&
 327         !GdiIsMetaFileDC(dc->hSelf))
 328     {
 329         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
 330         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_PEN));
 331     }
 332 }
 333
 334
 335 /***********************************************************************
 336  *           nulldrv_SaveDC
 337  */
 338 INT nulldrv_SaveDC( PHYSDEV dev )
 339 {
 340     DC *newdc, *dc = get_nulldrv_dc( dev );
 341
 342     if (!(newdc = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*newdc )))) return 0;
 343     newdc->layout           = dc->layout;
 344     newdc->hPen             = dc->hPen;
 345     newdc->hBrush           = dc->hBrush;
 346     newdc->hFont            = dc->hFont;
 347     newdc->hBitmap          = dc->hBitmap;
 348     newdc->hDevice          = dc->hDevice;
 349     newdc->hPalette         = dc->hPalette;
 350     newdc->ROPmode          = dc->ROPmode;
 351     newdc->polyFillMode     = dc->polyFillMode;
 352     newdc->stretchBltMode   = dc->stretchBltMode;
 353     newdc->relAbsMode       = dc->relAbsMode;
 354     newdc->backgroundMode   = dc->backgroundMode;
 355     newdc->backgroundColor  = dc->backgroundColor;
 356     newdc->textColor        = dc->textColor;
 357     newdc->dcBrushColor     = dc->dcBrushColor;
 358     newdc->dcPenColor       = dc->dcPenColor;
 359     newdc->brushOrgX        = dc->brushOrgX;
 360     newdc->brushOrgY        = dc->brushOrgY;
 361     newdc->mapperFlags      = dc->mapperFlags;
 362     newdc->textAlign        = dc->textAlign;
 363     newdc->charExtra        = dc->charExtra;
 364     newdc->breakExtra       = dc->breakExtra;
 365     newdc->breakRem         = dc->breakRem;
 366     newdc->MapMode          = dc->MapMode;
 367     newdc->GraphicsMode     = dc->GraphicsMode;
 368     newdc->CursPosX         = dc->CursPosX;
 369     newdc->CursPosY         = dc->CursPosY;
 370     newdc->ArcDirection     = dc->ArcDirection;
 371     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 372     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 373     newdc->xformVport2World = dc->xformVport2World;
 374     newdc->vport2WorldValid = dc->vport2WorldValid;
 375     newdc->wndOrgX          = dc->wndOrgX;
 376     newdc->wndOrgY          = dc->wndOrgY;
 377     newdc->wndExtX          = dc->wndExtX;
 378     newdc->wndExtY          = dc->wndExtY;
 379     newdc->vportOrgX        = dc->vportOrgX;
 380     newdc->vportOrgY        = dc->vportOrgY;
 381     newdc->vportExtX        = dc->vportExtX;
 382     newdc->vportExtY        = dc->vportExtY;
 383     newdc->virtual_res      = dc->virtual_res;
 384     newdc->virtual_size     = dc->virtual_size;
 385     newdc->gdiFont          = dc->gdiFont;
 386
 387     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 388
 389     if (dc->hClipRgn)
 390     {
 391         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 392         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 393     }
 394     if (dc->hMetaRgn)
 395     {
 396         newdc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 397         CombineRgn( newdc->hMetaRgn, dc->hMetaRgn, 0, RGN_COPY );
 398     }
 399
 400     if (!PATH_SavePath( newdc, dc ))
 401     {
 402         release_dc_ptr( dc );
 403         free_dc_state( newdc );
 404         return 0;
 405     }
 406
 407     newdc->saved_dc = dc->saved_dc;
 408     dc->saved_dc = newdc;
 409     return ++dc->saveLevel;
 410 }
 411
 412
 413 /***********************************************************************
 414  *           restore_dc_state
 415  */
 416 BOOL nulldrv_RestoreDC( PHYSDEV dev, INT level )
 417 {
 418     DC *dcs, *first_dcs, *dc = get_nulldrv_dc( dev );
 419     INT save_level;
 420
 421     /* find the state level to restore */
 422
 423     if (abs(level) > dc->saveLevel || level == 0) return FALSE;
 424     if (level < 0) level = dc->saveLevel + level + 1;
 425     first_dcs = dc->saved_dc;
 426     for (dcs = first_dcs, save_level = dc->saveLevel; save_level > level; save_level--)
 427         dcs = dcs->saved_dc;
 428
 429     /* restore the state */
 430
 431     if (!PATH_RestorePath( dc, dcs )) return FALSE;
 432
 433     dc->layout           = dcs->layout;
 434     dc->hDevice          = dcs->hDevice;
 435     dc->ROPmode          = dcs->ROPmode;
 436     dc->polyFillMode     = dcs->polyFillMode;
 437     dc->stretchBltMode   = dcs->stretchBltMode;
 438     dc->relAbsMode       = dcs->relAbsMode;
 439     dc->backgroundMode   = dcs->backgroundMode;
 440     dc->backgroundColor  = dcs->backgroundColor;
 441     dc->textColor        = dcs->textColor;
 442     dc->dcBrushColor     = dcs->dcBrushColor;
 443     dc->dcPenColor       = dcs->dcPenColor;
 444     dc->brushOrgX        = dcs->brushOrgX;
 445     dc->brushOrgY        = dcs->brushOrgY;
 446     dc->mapperFlags      = dcs->mapperFlags;
 447     dc->textAlign        = dcs->textAlign;
 448     dc->charExtra        = dcs->charExtra;
 449     dc->breakExtra       = dcs->breakExtra;
 450     dc->breakRem         = dcs->breakRem;
 451     dc->MapMode          = dcs->MapMode;
 452     dc->GraphicsMode     = dcs->GraphicsMode;
 453     dc->CursPosX         = dcs->CursPosX;
 454     dc->CursPosY         = dcs->CursPosY;
 455     dc->ArcDirection     = dcs->ArcDirection;
 456     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 457     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 458     dc->xformVport2World = dcs->xformVport2World;
 459     dc->vport2WorldValid = dcs->vport2WorldValid;
 460     dc->wndOrgX          = dcs->wndOrgX;
 461     dc->wndOrgY          = dcs->wndOrgY;
 462     dc->wndExtX          = dcs->wndExtX;
 463     dc->wndExtY          = dcs->wndExtY;
 464     dc->vportOrgX        = dcs->vportOrgX;
 465     dc->vportOrgY        = dcs->vportOrgY;
 466     dc->vportExtX        = dcs->vportExtX;
 467     dc->vportExtY        = dcs->vportExtY;
 468     dc->virtual_res      = dcs->virtual_res;
 469     dc->virtual_size     = dcs->virtual_size;
 470
 471     if (dcs->hClipRgn)
 472     {
 473         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 474         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 475     }
 476     else
 477     {
 478         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 479         dc->hClipRgn = 0;
 480     }
 481     if (dcs->hMetaRgn)
 482     {
 483         if (!dc->hMetaRgn) dc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 484         CombineRgn( dc->hMetaRgn, dcs->hMetaRgn, 0, RGN_COPY );
 485     }
 486     else
 487     {
 488         if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 489         dc->hMetaRgn = 0;
 490     }
 491     DC_UpdateXforms( dc );
 492     update_dc_clipping( dc );
 493
 494     SelectObject( dev->hdc, dcs->hBitmap );
 495     SelectObject( dev->hdc, dcs->hBrush );
 496     SelectObject( dev->hdc, dcs->hFont );
 497     SelectObject( dev->hdc, dcs->hPen );
 498     SetBkColor( dev->hdc, dcs->backgroundColor);
 499     SetTextColor( dev->hdc, dcs->textColor);
 500     GDISelectPalette( dev->hdc, dcs->hPalette, FALSE );
 501
 502     dc->saved_dc  = dcs->saved_dc;
 503     dcs->saved_dc = 0;
 504     dc->saveLevel = save_level - 1;
 505
 506     /* now destroy all the saved DCs */
 507
 508     while (first_dcs)
 509     {
 510         DC *next = first_dcs->saved_dc;
 511         free_dc_state( first_dcs );
 512         first_dcs = next;
 513     }
 514     return TRUE;
 515 }
 516
 517
 518 /***********************************************************************
 519  *           SaveDC    (GDI32.@)
 520  */
 521 INT WINAPI SaveDC( HDC hdc )
 522 {
 523     DC * dc;
 524     INT ret = 0;
 525
 526     if ((dc = get_dc_ptr( hdc )))
 527     {
 528         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSaveDC );
 529         ret = physdev->funcs->pSaveDC( physdev );
 530         release_dc_ptr( dc );
 531     }
 532     return ret;
 533 }
 534
 535
 536 /***********************************************************************
 537  *           RestoreDC    (GDI32.@)
 538  */
 539 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 540 {
 541     DC *dc;
 542     BOOL success = FALSE;
 543
 544     TRACE("%p %d\n", hdc, level );
 545     if ((dc = get_dc_ptr( hdc )))
 546     {
 547         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRestoreDC );
 548         update_dc( dc );
 549         success = physdev->funcs->pRestoreDC( physdev, level );
 550         release_dc_ptr( dc );
 551     }
 552     return success;
 553 }
 554
 555
 556 /***********************************************************************
 557  *           CreateDCW    (GDI32.@)
 558  */
 559 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 560                       const DEVMODEW *initData )
 561 {
 562     HDC hdc;
 563     DC * dc;
 564     const struct gdi_dc_funcs *funcs;
 565     WCHAR buf[300];
 566
 567     GDI_CheckNotLock();
 568
 569     if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
 570     {
 571         if (!driver)
 572         {
 573             ERR( "no device found for %s\n", debugstr_w(device) );
 574             return 0;
 575         }
 576         strcpyW(buf, driver);
 577     }
 578
 579     if (!(funcs = DRIVER_load_driver( buf )))
 580     {
 581         ERR( "no driver found for %s\n", debugstr_w(buf) );
 582         return 0;
 583     }
 584     if (!(dc = alloc_dc_ptr( OBJ_DC ))) return 0;
 585     hdc = dc->hSelf;
 586
 587     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 588
 589     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 590           debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
 591
 592     if (funcs->pCreateDC)
 593     {
 594         if (!funcs->pCreateDC( &dc->physDev, buf, device, output, initData ))
 595         {
 596             WARN("creation aborted by device\n" );
 597             free_dc_ptr( dc );
 598             return 0;
 599         }
 600     }
 601
 602     dc->vis_rect.left   = 0;
 603     dc->vis_rect.top    = 0;
 604     dc->vis_rect.right  = GetDeviceCaps( hdc, DESKTOPHORZRES );
 605     dc->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
 606
 607     DC_InitDC( dc );
 608     release_dc_ptr( dc );
 609     return hdc;
 610 }
 611
 612
 613 /***********************************************************************
 614  *           CreateDCA    (GDI32.@)
 615  */
 616 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 617                       const DEVMODEA *initData )
 618 {
 619     UNICODE_STRING driverW, deviceW, outputW;
 620     DEVMODEW *initDataW;
 621     HDC ret;
 622
 623     if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
 624     else driverW.Buffer = NULL;
 625
 626     if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
 627     else deviceW.Buffer = NULL;
 628
 629     if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
 630     else outputW.Buffer = NULL;
 631
 632     initDataW = NULL;
 633     if (initData)
 634     {
 635         /* don't convert initData for DISPLAY driver, it's not used */
 636         if (!driverW.Buffer || strcmpiW( driverW.Buffer, displayW ))
 637             initDataW = GdiConvertToDevmodeW(initData);
 638     }
 639
 640     ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
 641
 642     RtlFreeUnicodeString(&driverW);
 643     RtlFreeUnicodeString(&deviceW);
 644     RtlFreeUnicodeString(&outputW);
 645     HeapFree(GetProcessHeap(), 0, initDataW);
 646     return ret;
 647 }
 648
 649
 650 /***********************************************************************
 651  *           CreateICA    (GDI32.@)
 652  */
 653 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 654                           const DEVMODEA* initData )
 655 {
 656       /* Nothing special yet for ICs */
 657     return CreateDCA( driver, device, output, initData );
 658 }
 659
 660
 661 /***********************************************************************
 662  *           CreateICW    (GDI32.@)
 663  */
 664 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 665                           const DEVMODEW* initData )
 666 {
 667       /* Nothing special yet for ICs */
 668     return CreateDCW( driver, device, output, initData );
 669 }
 670
 671
 672 /***********************************************************************
 673  *           CreateCompatibleDC   (GDI32.@)
 674  */
 675 HDC WINAPI CreateCompatibleDC( HDC hdc )
 676 {
 677     DC *dc, *origDC;
 678     HDC ret;
 679     const struct gdi_dc_funcs *funcs = &null_driver;
 680     PHYSDEV physDev = NULL;
 681
 682     GDI_CheckNotLock();
 683
 684     if (hdc)
 685     {
 686         if (!(origDC = get_dc_ptr( hdc ))) return 0;
 687         physDev = GET_DC_PHYSDEV( origDC, pCreateCompatibleDC );
 688         funcs = physDev->funcs;
 689         release_dc_ptr( origDC );
 690     }
 691
 692     if (!(dc = alloc_dc_ptr( OBJ_MEMDC ))) return 0;
 693
 694     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 695
 696     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 697     dc->vis_rect.left   = 0;
 698     dc->vis_rect.top    = 0;
 699     dc->vis_rect.right  = 1;
 700     dc->vis_rect.bottom = 1;
 701     dc->device_rect = dc->vis_rect;
 702
 703     ret = dc->hSelf;
 704
 705     if (!funcs->pCreateCompatibleDC( physDev, &dc->physDev ))
 706     {
 707         WARN("creation aborted by device\n");
 708         free_dc_ptr( dc );
 709         return 0;
 710     }
 711     DC_InitDC( dc );
 712     release_dc_ptr( dc );
 713     return ret;
 714 }
 715
 716
 717 /***********************************************************************
 718  *           DeleteDC    (GDI32.@)
 719  */
 720 BOOL WINAPI DeleteDC( HDC hdc )
 721 {
 722     DC * dc;
 723
 724     TRACE("%p\n", hdc );
 725
 726     GDI_CheckNotLock();
 727
 728     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
 729     if (dc->refcount != 1)
 730     {
 731         FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
 732         release_dc_ptr( dc );
 733         return FALSE;
 734     }
 735
 736     /* Call hook procedure to check whether is it OK to delete this DC */
 737     if (dc->hookProc && !dc->hookProc( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ))
 738     {
 739         release_dc_ptr( dc );
 740         return TRUE;
 741     }
 742
 743     while (dc->saveLevel)
 744     {
 745         DC *dcs = dc->saved_dc;
 746         dc->saved_dc = dcs->saved_dc;
 747         dc->saveLevel--;
 748         free_dc_state( dcs );
 749     }
 750
 751     AbortPath( hdc );
 752     SelectObject( hdc, GetStockObject(BLACK_PEN) );
 753     SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 754     SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 755     SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 756
 757     free_dc_ptr( dc );
 758     return TRUE;
 759 }
 760
 761
 762 /***********************************************************************
 763  *           ResetDCW    (GDI32.@)
 764  */
 765 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 766 {
 767     DC *dc;
 768     HDC ret = 0;
 769
 770     if ((dc = get_dc_ptr( hdc )))
 771     {
 772         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pResetDC );
 773         ret = physdev->funcs->pResetDC( physdev, devmode );
 774         if (ret)  /* reset the visible region */
 775         {
 776             dc->dirty = 0;
 777             dc->vis_rect.left   = 0;
 778             dc->vis_rect.top    = 0;
 779             dc->vis_rect.right  = GetDeviceCaps( hdc, DESKTOPHORZRES );
 780             dc->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
 781             if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 782             dc->hVisRgn = 0;
 783             update_dc_clipping( dc );
 784         }
 785         release_dc_ptr( dc );
 786     }
 787     return ret;
 788 }
 789
 790
 791 /***********************************************************************
 792  *           ResetDCA    (GDI32.@)
 793  */
 794 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 795 {
 796     DEVMODEW *devmodeW;
 797     HDC ret;
 798
 799     if (devmode) devmodeW = GdiConvertToDevmodeW(devmode);
 800     else devmodeW = NULL;
 801
 802     ret = ResetDCW(hdc, devmodeW);
 803
 804     HeapFree(GetProcessHeap(), 0, devmodeW);
 805     return ret;
 806 }
 807
 808
 809 /***********************************************************************
 810  *           GetDeviceCaps    (GDI32.@)
 811  */
 812 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 813 {
 814     DC *dc;
 815     INT ret = 0;
 816
 817     if ((dc = get_dc_ptr( hdc )))
 818     {
 819         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetDeviceCaps );
 820         ret = physdev->funcs->pGetDeviceCaps( physdev, cap );
 821         release_dc_ptr( dc );
 822     }
 823     return ret;
 824 }
 825
 826
 827 /***********************************************************************
 828  *              GetBkColor (GDI32.@)
 829  */
 830 COLORREF WINAPI GetBkColor( HDC hdc )
 831 {
 832     COLORREF ret = 0;
 833     DC * dc = get_dc_ptr( hdc );
 834     if (dc)
 835     {
 836         ret = dc->backgroundColor;
 837         release_dc_ptr( dc );
 838     }
 839     return ret;
 840 }
 841
 842
 843 /***********************************************************************
 844  *           SetBkColor    (GDI32.@)
 845  */
 846 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 847 {
 848     COLORREF ret = CLR_INVALID;
 849     DC * dc = get_dc_ptr( hdc );
 850
 851     TRACE("hdc=%p color=0x%08x\n", hdc, color);
 852
 853     if (dc)
 854     {
 855         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetBkColor );
 856         ret = dc->backgroundColor;
 857         dc->backgroundColor = physdev->funcs->pSetBkColor( physdev, color );
 858         release_dc_ptr( dc );
 859     }
 860     return ret;
 861 }
 862
 863
 864 /***********************************************************************
 865  *              GetTextColor (GDI32.@)
 866  */
 867 COLORREF WINAPI GetTextColor( HDC hdc )
 868 {
 869     COLORREF ret = 0;
 870     DC * dc = get_dc_ptr( hdc );
 871     if (dc)
 872     {
 873         ret = dc->textColor;
 874         release_dc_ptr( dc );
 875     }
 876     return ret;
 877 }
 878
 879
 880 /***********************************************************************
 881  *           SetTextColor    (GDI32.@)
 882  */
 883 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 884 {
 885     COLORREF ret = CLR_INVALID;
 886     DC * dc = get_dc_ptr( hdc );
 887
 888     TRACE(" hdc=%p color=0x%08x\n", hdc, color);
 889
 890     if (dc)
 891     {
 892         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetTextColor );
 893         ret = dc->textColor;
 894         dc->textColor = physdev->funcs->pSetTextColor( physdev, color );
 895         release_dc_ptr( dc );
 896     }
 897     return ret;
 898 }
 899
 900
 901 /***********************************************************************
 902  *              GetTextAlign (GDI32.@)
 903  */
 904 UINT WINAPI GetTextAlign( HDC hdc )
 905 {
 906     UINT ret = 0;
 907     DC * dc = get_dc_ptr( hdc );
 908     if (dc)
 909     {
 910         ret = dc->textAlign;
 911         release_dc_ptr( dc );
 912     }
 913     return ret;
 914 }
 915
 916
 917 /***********************************************************************
 918  *           SetTextAlign    (GDI32.@)
 919  */
 920 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 921 {
 922     UINT ret = GDI_ERROR;
 923     DC *dc = get_dc_ptr( hdc );
 924
 925     TRACE("hdc=%p align=%d\n", hdc, align);
 926
 927     if (dc)
 928     {
 929         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetTextAlign );
 930         align = physdev->funcs->pSetTextAlign( physdev, align );
 931         if (align != GDI_ERROR)
 932         {
 933             ret = dc->textAlign;
 934             dc->textAlign = align;
 935         }
 936         release_dc_ptr( dc );
 937     }
 938     return ret;
 939 }
 940
 941 /***********************************************************************
 942  *           GetDCOrgEx  (GDI32.@)
 943  */
 944 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 945 {
 946     DC * dc;
 947
 948     if (!lpp) return FALSE;
 949     if (!(dc = get_dc_ptr( hDC ))) return FALSE;
 950     lpp->x = dc->vis_rect.left;
 951     lpp->y = dc->vis_rect.top;
 952     release_dc_ptr( dc );
 953     return TRUE;
 954 }
 955
 956
 957 /***********************************************************************
 958  *              GetGraphicsMode (GDI32.@)
 959  */
 960 INT WINAPI GetGraphicsMode( HDC hdc )
 961 {
 962     INT ret = 0;
 963     DC * dc = get_dc_ptr( hdc );
 964     if (dc)
 965     {
 966         ret = dc->GraphicsMode;
 967         release_dc_ptr( dc );
 968     }
 969     return ret;
 970 }
 971
 972
 973 /***********************************************************************
 974  *           SetGraphicsMode    (GDI32.@)
 975  */
 976 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 977 {
 978     INT ret = 0;
 979     DC *dc = get_dc_ptr( hdc );
 980
 981     /* One would think that setting the graphics mode to GM_COMPATIBLE
 982      * would also reset the world transformation matrix to the unity
 983      * matrix. However, in Windows, this is not the case. This doesn't
 984      * make a lot of sense to me, but that's the way it is.
 985      */
 986     if (!dc) return 0;
 987     if ((mode > 0) && (mode <= GM_LAST))
 988     {
 989         ret = dc->GraphicsMode;
 990         dc->GraphicsMode = mode;
 991     }
 992     release_dc_ptr( dc );
 993     return ret;
 994 }
 995
 996
 997 /***********************************************************************
 998  *              GetArcDirection (GDI32.@)
 999  */
1000 INT WINAPI GetArcDirection( HDC hdc )
1001 {
1002     INT ret = 0;
1003     DC * dc = get_dc_ptr( hdc );
1004     if (dc)
1005     {
1006         ret = dc->ArcDirection;
1007         release_dc_ptr( dc );
1008     }
1009     return ret;
1010 }
1011
1012
1013 /***********************************************************************
1014  *           SetArcDirection    (GDI32.@)
1015  */
1016 INT WINAPI SetArcDirection( HDC hdc, INT dir )
1017 {
1018     DC * dc;
1019     INT ret = 0;
1020
1021     if (dir != AD_COUNTERCLOCKWISE && dir != AD_CLOCKWISE)
1022     {
1023         SetLastError(ERROR_INVALID_PARAMETER);
1024         return 0;
1025     }
1026
1027     if ((dc = get_dc_ptr( hdc )))
1028     {
1029         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetArcDirection );
1030         dir = physdev->funcs->pSetArcDirection( physdev, dir );
1031         if (dir)
1032         {
1033             ret = dc->ArcDirection;
1034             dc->ArcDirection = dir;
1035         }
1036         release_dc_ptr( dc );
1037     }
1038     return ret;
1039 }
1040
1041
1042 /***********************************************************************
1043  *           GetWorldTransform    (GDI32.@)
1044  */
1045 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1046 {
1047     DC * dc;
1048     if (!xform) return FALSE;
1049     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
1050     *xform = dc->xformWorld2Wnd;
1051     release_dc_ptr( dc );
1052     return TRUE;
1053 }
1054
1055
1056 /***********************************************************************
1057  *           GetTransform    (GDI32.@)
1058  *
1059  * Undocumented
1060  *
1061  * Returns one of the co-ordinate space transforms
1062  *
1063  * PARAMS
1064  *    hdc   [I] Device context.
1065  *    which [I] Which xform to return:
1066  *                  0x203 World -> Page transform (that set by SetWorldTransform).
1067  *                  0x304 Page -> Device transform (the mapping mode transform).
1068  *                  0x204 World -> Device transform (the combination of the above two).
1069  *                  0x402 Device -> World transform (the inversion of the above).
1070  *    xform [O] The xform.
1071  *
1072  */
1073 BOOL WINAPI GetTransform( HDC hdc, DWORD which, XFORM *xform )
1074 {
1075     BOOL ret = TRUE;
1076     DC *dc = get_dc_ptr( hdc );
1077     if (!dc) return FALSE;
1078
1079     switch(which)
1080     {
1081     case 0x203:
1082         *xform = dc->xformWorld2Wnd;
1083         break;
1084
1085     case 0x304:
1086         construct_window_to_viewport(dc, xform);
1087         break;
1088
1089     case 0x204:
1090         *xform = dc->xformWorld2Vport;
1091         break;
1092
1093     case 0x402:
1094         *xform = dc->xformVport2World;
1095         break;
1096
1097     default:
1098         FIXME("Unknown code %x\n", which);
1099         ret = FALSE;
1100     }
1101
1102     release_dc_ptr( dc );
1103     return ret;
1104 }
1105
1106
1107 /****************************************************************************
1108  * CombineTransform [GDI32.@]
1109  * Combines two transformation matrices.
1110  *
1111  * PARAMS
1112  *    xformResult [O] Stores the result of combining the two matrices
1113  *    xform1      [I] Specifies the first matrix to apply
1114  *    xform2      [I] Specifies the second matrix to apply
1115  *
1116  * REMARKS
1117  *    The same matrix can be passed in for more than one of the parameters.
1118  *
1119  * RETURNS
1120  *  Success: TRUE.
1121  *  Failure: FALSE. Use GetLastError() to determine the cause.
1122  */
1123 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1124     const XFORM *xform2 )
1125 {
1126     XFORM xformTemp;
1127
1128     /* Check for illegal parameters */
1129     if (!xformResult || !xform1 || !xform2)
1130         return FALSE;
1131
1132     /* Create the result in a temporary XFORM, since xformResult may be
1133      * equal to xform1 or xform2 */
1134     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1135                      xform1->eM12 * xform2->eM21;
1136     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1137                      xform1->eM12 * xform2->eM22;
1138     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1139                      xform1->eM22 * xform2->eM21;
1140     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1141                      xform1->eM22 * xform2->eM22;
1142     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1143                      xform1->eDy  * xform2->eM21 +
1144                      xform2->eDx;
1145     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1146                      xform1->eDy  * xform2->eM22 +
1147                      xform2->eDy;
1148
1149     /* Copy the result to xformResult */
1150     *xformResult = xformTemp;
1151
1152     return TRUE;
1153 }
1154
1155
1156 /***********************************************************************
1157  *           SetDCHook   (GDI32.@)
1158  *
1159  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1160  */
1161 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD_PTR dwHookData )
1162 {
1163     DC *dc = get_dc_ptr( hdc );
1164
1165     if (!dc) return FALSE;
1166
1167     dc->dwHookData = dwHookData;
1168     dc->hookProc = hookProc;
1169     release_dc_ptr( dc );
1170     return TRUE;
1171 }
1172
1173
1174 /***********************************************************************
1175  *           GetDCHook   (GDI32.@)
1176  *
1177  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1178  */
1179 DWORD_PTR WINAPI GetDCHook( HDC hdc, DCHOOKPROC *proc )
1180 {
1181     DC *dc = get_dc_ptr( hdc );
1182     DWORD_PTR ret;
1183
1184     if (!dc) return 0;
1185     if (proc) *proc = dc->hookProc;
1186     ret = dc->dwHookData;
1187     release_dc_ptr( dc );
1188     return ret;
1189 }
1190
1191
1192 /***********************************************************************
1193  *           SetHookFlags   (GDI32.@)
1194  *
1195  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1196  */
1197 WORD WINAPI SetHookFlags( HDC hdc, WORD flags )
1198 {
1199     DC *dc = get_dc_obj( hdc );  /* not get_dc_ptr, this needs to work from any thread */
1200     LONG ret = 0;
1201
1202     if (!dc) return 0;
1203
1204     /* "Undocumented Windows" info is slightly confusing. */
1205
1206     TRACE("hDC %p, flags %04x\n",hdc,flags);
1207
1208     if (flags & DCHF_INVALIDATEVISRGN)
1209         ret = InterlockedExchange( &dc->dirty, 1 );
1210     else if (flags & DCHF_VALIDATEVISRGN || !flags)
1211         ret = InterlockedExchange( &dc->dirty, 0 );
1212
1213     GDI_ReleaseObj( hdc );
1214     return ret;
1215 }
1216
1217 /***********************************************************************
1218  *           SetICMMode    (GDI32.@)
1219  */
1220 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1221 {
1222 /*FIXME:  Assume that ICM is always off, and cannot be turned on */
1223     if (iEnableICM == ICM_OFF) return ICM_OFF;
1224     if (iEnableICM == ICM_ON) return 0;
1225     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1226     return 0;
1227 }
1228
1229 /***********************************************************************
1230  *           GetDeviceGammaRamp    (GDI32.@)
1231  */
1232 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1233 {
1234     BOOL ret = FALSE;
1235     DC *dc = get_dc_ptr( hDC );
1236
1237     TRACE("%p, %p\n", hDC, ptr);
1238     if( dc )
1239     {
1240         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetDeviceGammaRamp );
1241         ret = physdev->funcs->pGetDeviceGammaRamp( physdev, ptr );
1242         release_dc_ptr( dc );
1243     }
1244     return ret;
1245 }
1246
1247 /***********************************************************************
1248  *           SetDeviceGammaRamp    (GDI32.@)
1249  */
1250 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1251 {
1252     BOOL ret = FALSE;
1253     DC *dc = get_dc_ptr( hDC );
1254
1255     TRACE("%p, %p\n", hDC, ptr);
1256     if( dc )
1257     {
1258         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDeviceGammaRamp );
1259         ret = physdev->funcs->pSetDeviceGammaRamp( physdev, ptr );
1260         release_dc_ptr( dc );
1261     }
1262     return ret;
1263 }
1264
1265 /***********************************************************************
1266  *           GetColorSpace    (GDI32.@)
1267  */
1268 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1269 {
1270 /*FIXME    Need to do whatever GetColorSpace actually does */
1271     return 0;
1272 }
1273
1274 /***********************************************************************
1275  *           CreateColorSpaceA    (GDI32.@)
1276  */
1277 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1278 {
1279   FIXME( "stub\n" );
1280   return 0;
1281 }
1282
1283 /***********************************************************************
1284  *           CreateColorSpaceW    (GDI32.@)
1285  */
1286 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1287 {
1288   FIXME( "stub\n" );
1289   return 0;
1290 }
1291
1292 /***********************************************************************
1293  *           DeleteColorSpace     (GDI32.@)
1294  */
1295 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1296 {
1297   FIXME( "stub\n" );
1298
1299   return TRUE;
1300 }
1301
1302 /***********************************************************************
1303  *           SetColorSpace     (GDI32.@)
1304  */
1305 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1306 {
1307   FIXME( "stub\n" );
1308
1309   return hColorSpace;
1310 }
1311
1312 /***********************************************************************
1313  *           GetBoundsRect    (GDI32.@)
1314  */
1315 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1316 {
1317     PHYSDEV physdev;
1318     RECT device_rect;
1319     UINT ret;
1320     DC *dc = get_dc_ptr( hdc );
1321
1322     if ( !dc ) return 0;
1323
1324     physdev = GET_DC_PHYSDEV( dc, pGetBoundsRect );
1325     ret = physdev->funcs->pGetBoundsRect( physdev, &device_rect, DCB_RESET );
1326     if (!ret)
1327     {
1328         release_dc_ptr( dc );
1329         return 0;
1330     }
1331     if (dc->bounds_enabled && ret == DCB_SET) add_bounds_rect( &dc->bounds, &device_rect );
1332
1333     if (rect)
1334     {
1335         if (is_rect_empty( &dc->bounds ))
1336         {
1337             rect->left = rect->top = rect->right = rect->bottom = 0;
1338             ret = DCB_RESET;
1339         }
1340         else
1341         {
1342             *rect = dc->bounds;
1343             rect->left   = max( rect->left, 0 );
1344             rect->top    = max( rect->top, 0 );
1345             rect->right  = min( rect->right, dc->vis_rect.right - dc->vis_rect.left );
1346             rect->bottom = min( rect->bottom, dc->vis_rect.bottom - dc->vis_rect.top );
1347             ret = DCB_SET;
1348         }
1349         DPtoLP( hdc, (POINT *)rect, 2 );
1350     }
1351     else ret = 0;
1352
1353     if (flags & DCB_RESET) reset_bounds( &dc->bounds );
1354     release_dc_ptr( dc );
1355     return ret;
1356 }
1357
1358
1359 /***********************************************************************
1360  *           SetBoundsRect    (GDI32.@)
1361  */
1362 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1363 {
1364     PHYSDEV physdev;
1365     UINT ret;
1366     DC *dc;
1367
1368     if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
1369     if (!(dc = get_dc_ptr( hdc ))) return 0;
1370
1371     physdev = GET_DC_PHYSDEV( dc, pSetBoundsRect );
1372     ret = physdev->funcs->pSetBoundsRect( physdev, &dc->bounds, flags );
1373     if (!ret)
1374     {
1375         release_dc_ptr( dc );
1376         return 0;
1377     }
1378
1379     ret = (dc->bounds_enabled ? DCB_ENABLE : DCB_DISABLE) |
1380           (is_rect_empty( &dc->bounds ) ? ret & DCB_SET : DCB_SET);
1381
1382     if (flags & DCB_RESET) reset_bounds( &dc->bounds );
1383
1384     if ((flags & DCB_ACCUMULATE) && rect)
1385     {
1386         RECT rc = *rect;
1387
1388         LPtoDP( hdc, (POINT *)&rc, 2 );
1389         add_bounds_rect( &dc->bounds, &rc );
1390     }
1391
1392     if (flags & DCB_ENABLE) dc->bounds_enabled = TRUE;
1393     if (flags & DCB_DISABLE) dc->bounds_enabled = FALSE;
1394
1395     release_dc_ptr( dc );
1396     return ret;
1397 }
1398
1399
1400 /***********************************************************************
1401  *              GetRelAbs               (GDI32.@)
1402  */
1403 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1404 {
1405     INT ret = 0;
1406     DC *dc = get_dc_ptr( hdc );
1407     if (dc)
1408     {
1409         ret = dc->relAbsMode;
1410         release_dc_ptr( dc );
1411     }
1412     return ret;
1413 }
1414
1415
1416
1417
1418 /***********************************************************************
1419  *              GetBkMode (GDI32.@)
1420  */
1421 INT WINAPI GetBkMode( HDC hdc )
1422 {
1423     INT ret = 0;
1424     DC * dc = get_dc_ptr( hdc );
1425     if (dc)
1426     {
1427         ret = dc->backgroundMode;
1428         release_dc_ptr( dc );
1429     }
1430     return ret;
1431 }
1432
1433
1434 /***********************************************************************
1435  *              SetBkMode (GDI32.@)
1436  */
1437 INT WINAPI SetBkMode( HDC hdc, INT mode )
1438 {
1439     INT ret = 0;
1440     DC *dc;
1441
1442     if ((mode <= 0) || (mode > BKMODE_LAST))
1443     {
1444         SetLastError(ERROR_INVALID_PARAMETER);
1445         return 0;
1446     }
1447     if ((dc = get_dc_ptr( hdc )))
1448     {
1449         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetBkMode );
1450         mode = physdev->funcs->pSetBkMode( physdev, mode );
1451         if (mode)
1452         {
1453             ret = dc->backgroundMode;
1454             dc->backgroundMode = mode;
1455         }
1456         release_dc_ptr( dc );
1457     }
1458     return ret;
1459 }
1460
1461
1462 /***********************************************************************
1463  *              GetROP2 (GDI32.@)
1464  */
1465 INT WINAPI GetROP2( HDC hdc )
1466 {
1467     INT ret = 0;
1468     DC * dc = get_dc_ptr( hdc );
1469     if (dc)
1470     {
1471         ret = dc->ROPmode;
1472         release_dc_ptr( dc );
1473     }
1474     return ret;
1475 }
1476
1477
1478 /***********************************************************************
1479  *              SetROP2 (GDI32.@)
1480  */
1481 INT WINAPI SetROP2( HDC hdc, INT mode )
1482 {
1483     INT ret = 0;
1484     DC *dc;
1485
1486     if ((mode < R2_BLACK) || (mode > R2_WHITE))
1487     {
1488         SetLastError(ERROR_INVALID_PARAMETER);
1489         return 0;
1490     }
1491     if ((dc = get_dc_ptr( hdc )))
1492     {
1493         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetROP2 );
1494         mode = physdev->funcs->pSetROP2( physdev, mode );
1495         if (mode)
1496         {
1497             ret = dc->ROPmode;
1498             dc->ROPmode = mode;
1499         }
1500         release_dc_ptr( dc );
1501     }
1502     return ret;
1503 }
1504
1505
1506 /***********************************************************************
1507  *              SetRelAbs (GDI32.@)
1508  */
1509 INT WINAPI SetRelAbs( HDC hdc, INT mode )
1510 {
1511     INT ret = 0;
1512     DC *dc;
1513
1514     if ((mode != ABSOLUTE) && (mode != RELATIVE))
1515     {
1516         SetLastError(ERROR_INVALID_PARAMETER);
1517         return 0;
1518     }
1519     if ((dc = get_dc_ptr( hdc )))
1520     {
1521         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetRelAbs );
1522         mode = physdev->funcs->pSetRelAbs( physdev, mode );
1523         if (mode)
1524         {
1525             ret = dc->relAbsMode;
1526             dc->relAbsMode = mode;
1527         }
1528         release_dc_ptr( dc );
1529     }
1530     return ret;
1531 }
1532
1533
1534 /***********************************************************************
1535  *              GetPolyFillMode (GDI32.@)
1536  */
1537 INT WINAPI GetPolyFillMode( HDC hdc )
1538 {
1539     INT ret = 0;
1540     DC * dc = get_dc_ptr( hdc );
1541     if (dc)
1542     {
1543         ret = dc->polyFillMode;
1544         release_dc_ptr( dc );
1545     }
1546     return ret;
1547 }
1548
1549
1550 /***********************************************************************
1551  *              SetPolyFillMode (GDI32.@)
1552  */
1553 INT WINAPI SetPolyFillMode( HDC hdc, INT mode )
1554 {
1555     INT ret = 0;
1556     DC *dc;
1557
1558     if ((mode <= 0) || (mode > POLYFILL_LAST))
1559     {
1560         SetLastError(ERROR_INVALID_PARAMETER);
1561         return 0;
1562     }
1563     if ((dc = get_dc_ptr( hdc )))
1564     {
1565         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetPolyFillMode );
1566         mode = physdev->funcs->pSetPolyFillMode( physdev, mode );
1567         if (mode)
1568         {
1569             ret = dc->polyFillMode;
1570             dc->polyFillMode = mode;
1571         }
1572         release_dc_ptr( dc );
1573     }
1574     return ret;
1575 }
1576
1577
1578 /***********************************************************************
1579  *              GetStretchBltMode (GDI32.@)
1580  */
1581 INT WINAPI GetStretchBltMode( HDC hdc )
1582 {
1583     INT ret = 0;
1584     DC * dc = get_dc_ptr( hdc );
1585     if (dc)
1586     {
1587         ret = dc->stretchBltMode;
1588         release_dc_ptr( dc );
1589     }
1590     return ret;
1591 }
1592
1593
1594 /***********************************************************************
1595  *              SetStretchBltMode (GDI32.@)
1596  */
1597 INT WINAPI SetStretchBltMode( HDC hdc, INT mode )
1598 {
1599     INT ret = 0;
1600     DC *dc;
1601
1602     if ((mode <= 0) || (mode > MAXSTRETCHBLTMODE))
1603     {
1604         SetLastError(ERROR_INVALID_PARAMETER);
1605         return 0;
1606     }
1607     if ((dc = get_dc_ptr( hdc )))
1608     {
1609         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetStretchBltMode );
1610         mode = physdev->funcs->pSetStretchBltMode( physdev, mode );
1611         if (mode)
1612         {
1613             ret = dc->stretchBltMode;
1614             dc->stretchBltMode = mode;
1615         }
1616         release_dc_ptr( dc );
1617     }
1618     return ret;
1619 }
1620
1621
1622 /***********************************************************************
1623  *              GetMapMode (GDI32.@)
1624  */
1625 INT WINAPI GetMapMode( HDC hdc )
1626 {
1627     INT ret = 0;
1628     DC * dc = get_dc_ptr( hdc );
1629     if (dc)
1630     {
1631         ret = dc->MapMode;
1632         release_dc_ptr( dc );
1633     }
1634     return ret;
1635 }
1636
1637
1638 /***********************************************************************
1639  *              GetBrushOrgEx (GDI32.@)
1640  */
1641 BOOL WINAPI GetBrushOrgEx( HDC hdc, LPPOINT pt )
1642 {
1643     DC * dc = get_dc_ptr( hdc );
1644     if (!dc) return FALSE;
1645     pt->x = dc->brushOrgX;
1646     pt->y = dc->brushOrgY;
1647     release_dc_ptr( dc );
1648     return TRUE;
1649 }
1650
1651
1652 /***********************************************************************
1653  *              GetCurrentPositionEx (GDI32.@)
1654  */
1655 BOOL WINAPI GetCurrentPositionEx( HDC hdc, LPPOINT pt )
1656 {
1657     DC * dc = get_dc_ptr( hdc );
1658     if (!dc) return FALSE;
1659     pt->x = dc->CursPosX;
1660     pt->y = dc->CursPosY;
1661     release_dc_ptr( dc );
1662     return TRUE;
1663 }
1664
1665
1666 /***********************************************************************
1667  *              GetViewportExtEx (GDI32.@)
1668  */
1669 BOOL WINAPI GetViewportExtEx( HDC hdc, LPSIZE size )
1670 {
1671     DC * dc = get_dc_ptr( hdc );
1672     if (!dc) return FALSE;
1673     size->cx = dc->vportExtX;
1674     size->cy = dc->vportExtY;
1675     release_dc_ptr( dc );
1676     return TRUE;
1677 }
1678
1679
1680 /***********************************************************************
1681  *              GetViewportOrgEx (GDI32.@)
1682  */
1683 BOOL WINAPI GetViewportOrgEx( HDC hdc, LPPOINT pt )
1684 {
1685     DC * dc = get_dc_ptr( hdc );
1686     if (!dc) return FALSE;
1687     pt->x = dc->vportOrgX;
1688     pt->y = dc->vportOrgY;
1689     release_dc_ptr( dc );
1690     return TRUE;
1691 }
1692
1693
1694 /***********************************************************************
1695  *              GetWindowExtEx (GDI32.@)
1696  */
1697 BOOL WINAPI GetWindowExtEx( HDC hdc, LPSIZE size )
1698 {
1699     DC * dc = get_dc_ptr( hdc );
1700     if (!dc) return FALSE;
1701     size->cx = dc->wndExtX;
1702     size->cy = dc->wndExtY;
1703     release_dc_ptr( dc );
1704     return TRUE;
1705 }
1706
1707
1708 /***********************************************************************
1709  *              GetWindowOrgEx (GDI32.@)
1710  */
1711 BOOL WINAPI GetWindowOrgEx( HDC hdc, LPPOINT pt )
1712 {
1713     DC * dc = get_dc_ptr( hdc );
1714     if (!dc) return FALSE;
1715     pt->x = dc->wndOrgX;
1716     pt->y = dc->wndOrgY;
1717     release_dc_ptr( dc );
1718     return TRUE;
1719 }
1720
1721
1722 /***********************************************************************
1723  *           GetLayout    (GDI32.@)
1724  *
1725  * Gets left->right or right->left text layout flags of a dc.
1726  *
1727  */
1728 DWORD WINAPI GetLayout(HDC hdc)
1729 {
1730     DWORD layout = GDI_ERROR;
1731
1732     DC * dc = get_dc_ptr( hdc );
1733     if (dc)
1734     {
1735         layout = dc->layout;
1736         release_dc_ptr( dc );
1737     }
1738
1739     TRACE("hdc : %p, layout : %08x\n", hdc, layout);
1740
1741     return layout;
1742 }
1743
1744 /***********************************************************************
1745  *           SetLayout    (GDI32.@)
1746  *
1747  * Sets left->right or right->left text layout flags of a dc.
1748  *
1749  */
1750 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1751 {
1752     DWORD oldlayout = GDI_ERROR;
1753
1754     DC * dc = get_dc_ptr( hdc );
1755     if (dc)
1756     {
1757         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetLayout );
1758         layout = physdev->funcs->pSetLayout( physdev, layout );
1759         if (layout != GDI_ERROR)
1760         {
1761             oldlayout = dc->layout;
1762             dc->layout = layout;
1763             if (layout != oldlayout)
1764             {
1765                 if (layout & LAYOUT_RTL) dc->MapMode = MM_ANISOTROPIC;
1766                 DC_UpdateXforms( dc );
1767             }
1768         }
1769         release_dc_ptr( dc );
1770     }
1771
1772     TRACE("hdc : %p, old layout : %08x, new layout : %08x\n", hdc, oldlayout, layout);
1773
1774     return oldlayout;
1775 }
1776
1777 /***********************************************************************
1778  *           GetDCBrushColor    (GDI32.@)
1779  */
1780 COLORREF WINAPI GetDCBrushColor(HDC hdc)
1781 {
1782     DC *dc;
1783     COLORREF dcBrushColor = CLR_INVALID;
1784
1785     TRACE("hdc(%p)\n", hdc);
1786
1787     dc = get_dc_ptr( hdc );
1788     if (dc)
1789     {
1790         dcBrushColor = dc->dcBrushColor;
1791         release_dc_ptr( dc );
1792     }
1793
1794     return dcBrushColor;
1795 }
1796
1797 /***********************************************************************
1798  *           SetDCBrushColor    (GDI32.@)
1799  */
1800 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1801 {
1802     DC *dc;
1803     COLORREF oldClr = CLR_INVALID;
1804
1805     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
1806
1807     dc = get_dc_ptr( hdc );
1808     if (dc)
1809     {
1810         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDCBrushColor );
1811         crColor = physdev->funcs->pSetDCBrushColor( physdev, crColor );
1812         if (crColor != CLR_INVALID)
1813         {
1814             oldClr = dc->dcBrushColor;
1815             dc->dcBrushColor = crColor;
1816         }
1817         release_dc_ptr( dc );
1818     }
1819
1820     return oldClr;
1821 }
1822
1823 /***********************************************************************
1824  *           GetDCPenColor    (GDI32.@)
1825  */
1826 COLORREF WINAPI GetDCPenColor(HDC hdc)
1827 {
1828     DC *dc;
1829     COLORREF dcPenColor = CLR_INVALID;
1830
1831     TRACE("hdc(%p)\n", hdc);
1832
1833     dc = get_dc_ptr( hdc );
1834     if (dc)
1835     {
1836         dcPenColor = dc->dcPenColor;
1837         release_dc_ptr( dc );
1838     }
1839
1840     return dcPenColor;
1841 }
1842
1843 /***********************************************************************
1844  *           SetDCPenColor    (GDI32.@)
1845  */
1846 COLORREF WINAPI SetDCPenColor(HDC hdc, COLORREF crColor)
1847 {
1848     DC *dc;
1849     COLORREF oldClr = CLR_INVALID;
1850
1851     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
1852
1853     dc = get_dc_ptr( hdc );
1854     if (dc)
1855     {
1856         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDCPenColor );
1857         crColor = physdev->funcs->pSetDCPenColor( physdev, crColor );
1858         if (crColor != CLR_INVALID)
1859         {
1860             oldClr = dc->dcPenColor;
1861             dc->dcPenColor = crColor;
1862         }
1863         release_dc_ptr( dc );
1864     }
1865
1866     return oldClr;
1867 }
1868
1869 /***********************************************************************
1870  *           CancelDC    (GDI32.@)
1871  */
1872 BOOL WINAPI CancelDC(HDC hdc)
1873 {
1874     FIXME("stub\n");
1875     return TRUE;
1876 }
1877
1878 /*******************************************************************
1879  *      GetMiterLimit [GDI32.@]
1880  *
1881  *
1882  */
1883 BOOL WINAPI GetMiterLimit(HDC hdc, PFLOAT peLimit)
1884 {
1885     BOOL bRet = FALSE;
1886     DC *dc;
1887
1888     TRACE("(%p,%p)\n", hdc, peLimit);
1889
1890     dc = get_dc_ptr( hdc );
1891     if (dc)
1892     {
1893         if (peLimit)
1894             *peLimit = dc->miterLimit;
1895
1896         release_dc_ptr( dc );
1897         bRet = TRUE;
1898     }
1899     return bRet;
1900 }
1901
1902 /*******************************************************************
1903  *      SetMiterLimit [GDI32.@]
1904  *
1905  *
1906  */
1907 BOOL WINAPI SetMiterLimit(HDC hdc, FLOAT eNewLimit, PFLOAT peOldLimit)
1908 {
1909     BOOL bRet = FALSE;
1910     DC *dc;
1911
1912     TRACE("(%p,%f,%p)\n", hdc, eNewLimit, peOldLimit);
1913
1914     dc = get_dc_ptr( hdc );
1915     if (dc)
1916     {
1917         if (peOldLimit)
1918             *peOldLimit = dc->miterLimit;
1919         dc->miterLimit = eNewLimit;
1920         release_dc_ptr( dc );
1921         bRet = TRUE;
1922     }
1923     return bRet;
1924 }
1925
1926 /*******************************************************************
1927  *      GdiIsMetaPrintDC [GDI32.@]
1928  */
1929 BOOL WINAPI GdiIsMetaPrintDC(HDC hdc)
1930 {
1931     FIXME("%p\n", hdc);
1932     return FALSE;
1933 }
1934
1935 /*******************************************************************
1936  *      GdiIsMetaFileDC [GDI32.@]
1937  */
1938 BOOL WINAPI GdiIsMetaFileDC(HDC hdc)
1939 {
1940     TRACE("%p\n", hdc);
1941
1942     switch( GetObjectType( hdc ) )
1943     {
1944     case OBJ_METADC:
1945     case OBJ_ENHMETADC:
1946         return TRUE;
1947     }
1948     return FALSE;
1949 }
1950
1951 /*******************************************************************
1952  *      GdiIsPlayMetafileDC [GDI32.@]
1953  */
1954 BOOL WINAPI GdiIsPlayMetafileDC(HDC hdc)
1955 {
1956     FIXME("%p\n", hdc);
1957     return FALSE;
1958 }