objects/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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include "gdi.h"
  26 #include "heap.h"
  27 #include "wine/debug.h"
  28 #include "font.h"
  29 #include "winerror.h"
  30 #include "windef.h"
  31 #include "wingdi.h"
  32 #include "wine/winuser16.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(dc);
  35
  36 /* ### start build ### */
  37 extern WORD CALLBACK GDI_CallTo16_word_wwll(FARPROC16,WORD,WORD,LONG,LONG);
  38 /* ### stop build ### */
  39
  40 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj );
  41
  42 static const struct gdi_obj_funcs dc_funcs =
  43 {
  44     NULL,             /* pSelectObject */
  45     NULL,             /* pGetObject16 */
  46     NULL,             /* pGetObjectA */
  47     NULL,             /* pGetObjectW */
  48     NULL,             /* pUnrealizeObject */
  49     DC_DeleteObject   /* pDeleteObject */
  50 };
  51
  52 /***********************************************************************
  53  *           DC_AllocDC
  54  */
  55 DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
  56 {
  57     HDC hdc;
  58     DC *dc;
  59
  60     if (!(dc = GDI_AllocObject( sizeof(*dc), DC_MAGIC, &hdc, &dc_funcs ))) return NULL;
  61
  62     dc->hSelf               = hdc;
  63     dc->funcs               = funcs;
  64     dc->physDev             = NULL;
  65     dc->saveLevel           = 0;
  66     dc->dwHookData          = 0;
  67     dc->hookProc            = NULL;
  68     dc->hookThunk           = NULL;
  69     dc->wndOrgX             = 0;
  70     dc->wndOrgY             = 0;
  71     dc->wndExtX             = 1;
  72     dc->wndExtY             = 1;
  73     dc->vportOrgX           = 0;
  74     dc->vportOrgY           = 0;
  75     dc->vportExtX           = 1;
  76     dc->vportExtY           = 1;
  77     dc->flags               = 0;
  78     dc->hClipRgn            = 0;
  79     dc->hVisRgn             = 0;
  80     dc->hGCClipRgn          = 0;
  81     dc->hPen                = GetStockObject( BLACK_PEN );
  82     dc->hBrush              = GetStockObject( WHITE_BRUSH );
  83     dc->hFont               = GetStockObject( SYSTEM_FONT );
  84     dc->hBitmap             = 0;
  85     dc->hDevice             = 0;
  86     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
  87     dc->gdiFont             = 0;
  88     dc->ROPmode             = R2_COPYPEN;
  89     dc->polyFillMode        = ALTERNATE;
  90     dc->stretchBltMode      = BLACKONWHITE;
  91     dc->relAbsMode          = ABSOLUTE;
  92     dc->backgroundMode      = OPAQUE;
  93     dc->backgroundColor     = RGB( 255, 255, 255 );
  94     dc->textColor           = RGB( 0, 0, 0 );
  95     dc->brushOrgX           = 0;
  96     dc->brushOrgY           = 0;
  97     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
  98     dc->charExtra           = 0;
  99     dc->breakTotalExtra     = 0;
 100     dc->breakCount          = 0;
 101     dc->breakExtra          = 0;
 102     dc->breakRem            = 0;
 103     dc->totalExtent.left    = 0;
 104     dc->totalExtent.top     = 0;
 105     dc->totalExtent.right   = 0;
 106     dc->totalExtent.bottom  = 0;
 107     dc->bitsPerPixel        = 1;
 108     dc->MapMode             = MM_TEXT;
 109     dc->GraphicsMode        = GM_COMPATIBLE;
 110     dc->pAbortProc          = NULL;
 111     dc->CursPosX            = 0;
 112     dc->CursPosY            = 0;
 113     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 114     dc->xformWorld2Wnd.eM11 = 1.0f;
 115     dc->xformWorld2Wnd.eM12 = 0.0f;
 116     dc->xformWorld2Wnd.eM21 = 0.0f;
 117     dc->xformWorld2Wnd.eM22 = 1.0f;
 118     dc->xformWorld2Wnd.eDx  = 0.0f;
 119     dc->xformWorld2Wnd.eDy  = 0.0f;
 120     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 121     dc->xformVport2World    = dc->xformWorld2Wnd;
 122     dc->vport2WorldValid    = TRUE;
 123     PATH_InitGdiPath(&dc->path);
 124     return dc;
 125 }
 126
 127
 128
 129 /***********************************************************************
 130  *           DC_GetDCPtr
 131  */
 132 DC *DC_GetDCPtr( HDC hdc )
 133 {
 134     GDIOBJHDR *ptr = GDI_GetObjPtr( hdc, MAGIC_DONTCARE );
 135     if (!ptr) return NULL;
 136     if ((GDIMAGIC(ptr->wMagic) == DC_MAGIC) ||
 137         (GDIMAGIC(ptr->wMagic) == METAFILE_DC_MAGIC) ||
 138         (GDIMAGIC(ptr->wMagic) == ENHMETAFILE_DC_MAGIC))
 139         return (DC *)ptr;
 140     GDI_ReleaseObj( hdc );
 141     SetLastError( ERROR_INVALID_HANDLE );
 142     return NULL;
 143 }
 144
 145 /***********************************************************************
 146  *           DC_GetDCUpdate
 147  *
 148  * Retrieve a DC ptr while making sure the visRgn is updated.
 149  * This function may call up to USER so the GDI lock should _not_
 150  * be held when calling it.
 151  */
 152 DC *DC_GetDCUpdate( HDC hdc )
 153 {
 154     DC *dc = DC_GetDCPtr( hdc );
 155     if (!dc) return NULL;
 156     while (dc->flags & DC_DIRTY)
 157     {
 158         dc->flags &= ~DC_DIRTY;
 159         if (!(dc->flags & (DC_SAVED | DC_MEMORY)))
 160         {
 161             DCHOOKPROC proc = dc->hookThunk;
 162             if (proc)
 163             {
 164                 DWORD data = dc->dwHookData;
 165                 GDI_ReleaseObj( hdc );
 166                 proc( hdc, DCHC_INVALIDVISRGN, data, 0 );
 167                 if (!(dc = DC_GetDCPtr( hdc ))) break;
 168                 /* otherwise restart the loop in case it became dirty again in the meantime */
 169             }
 170         }
 171     }
 172     return dc;
 173 }
 174
 175
 176 /***********************************************************************
 177  *           DC_DeleteObject
 178  */
 179 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj )
 180 {
 181     GDI_ReleaseObj( handle );
 182     return DeleteDC( handle );
 183 }
 184
 185
 186 /***********************************************************************
 187  *           DC_InitDC
 188  *
 189  * Setup device-specific DC values for a newly created DC.
 190  */
 191 void DC_InitDC( DC* dc )
 192 {
 193     RealizeDefaultPalette16( dc->hSelf );
 194     SetTextColor( dc->hSelf, dc->textColor );
 195     SetBkColor( dc->hSelf, dc->backgroundColor );
 196     SelectObject( dc->hSelf, dc->hPen );
 197     SelectObject( dc->hSelf, dc->hBrush );
 198     SelectObject( dc->hSelf, dc->hFont );
 199     CLIPPING_UpdateGCRegion( dc );
 200 }
 201
 202
 203 /***********************************************************************
 204  *           DC_InvertXform
 205  *
 206  * Computes the inverse of the transformation xformSrc and stores it to
 207  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 208  * is singular.
 209  */
 210 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 211 {
 212     FLOAT determinant;
 213
 214     determinant = xformSrc->eM11*xformSrc->eM22 -
 215         xformSrc->eM12*xformSrc->eM21;
 216     if (determinant > -1e-12 && determinant < 1e-12)
 217         return FALSE;
 218
 219     xformDest->eM11 =  xformSrc->eM22 / determinant;
 220     xformDest->eM12 = -xformSrc->eM12 / determinant;
 221     xformDest->eM21 = -xformSrc->eM21 / determinant;
 222     xformDest->eM22 =  xformSrc->eM11 / determinant;
 223     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 224                        xformSrc->eDy * xformDest->eM21;
 225     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 226                        xformSrc->eDy * xformDest->eM22;
 227
 228     return TRUE;
 229 }
 230
 231
 232 /***********************************************************************
 233  *           DC_UpdateXforms
 234  *
 235  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 236  * fields of the specified DC by creating a transformation that
 237  * represents the current mapping mode and combining it with the DC's
 238  * world transform. This function should be called whenever the
 239  * parameters associated with the mapping mode (window and viewport
 240  * extents and origins) or the world transform change.
 241  */
 242 void DC_UpdateXforms( DC *dc )
 243 {
 244     XFORM xformWnd2Vport;
 245     FLOAT scaleX, scaleY;
 246
 247     /* Construct a transformation to do the window-to-viewport conversion */
 248     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 249     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 250     xformWnd2Vport.eM11 = scaleX;
 251     xformWnd2Vport.eM12 = 0.0;
 252     xformWnd2Vport.eM21 = 0.0;
 253     xformWnd2Vport.eM22 = scaleY;
 254     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 255         scaleX * (FLOAT)dc->wndOrgX;
 256     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 257         scaleY * (FLOAT)dc->wndOrgY;
 258
 259     /* Combine with the world transformation */
 260     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 261         &xformWnd2Vport );
 262
 263     /* Create inverse of world-to-viewport transformation */
 264     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 265         &dc->xformVport2World );
 266 }
 267
 268
 269 /***********************************************************************
 270  *           GetDCState    (GDI.179)
 271  */
 272 HDC16 WINAPI GetDCState16( HDC16 hdc )
 273 {
 274     DC * newdc, * dc;
 275     HGDIOBJ handle;
 276
 277     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 278     if (!(newdc = GDI_AllocObject( sizeof(DC), DC_MAGIC, &handle, &dc_funcs )))
 279     {
 280       GDI_ReleaseObj( hdc );
 281       return 0;
 282     }
 283     TRACE("(%04x): returning %04x\n", hdc, handle );
 284
 285     newdc->flags            = dc->flags | DC_SAVED;
 286     newdc->hPen             = dc->hPen;
 287     newdc->hBrush           = dc->hBrush;
 288     newdc->hFont            = dc->hFont;
 289     newdc->hBitmap          = dc->hBitmap;
 290     newdc->hDevice          = dc->hDevice;
 291     newdc->hPalette         = dc->hPalette;
 292     newdc->totalExtent      = dc->totalExtent;
 293     newdc->bitsPerPixel     = dc->bitsPerPixel;
 294     newdc->ROPmode          = dc->ROPmode;
 295     newdc->polyFillMode     = dc->polyFillMode;
 296     newdc->stretchBltMode   = dc->stretchBltMode;
 297     newdc->relAbsMode       = dc->relAbsMode;
 298     newdc->backgroundMode   = dc->backgroundMode;
 299     newdc->backgroundColor  = dc->backgroundColor;
 300     newdc->textColor        = dc->textColor;
 301     newdc->brushOrgX        = dc->brushOrgX;
 302     newdc->brushOrgY        = dc->brushOrgY;
 303     newdc->textAlign        = dc->textAlign;
 304     newdc->charExtra        = dc->charExtra;
 305     newdc->breakTotalExtra  = dc->breakTotalExtra;
 306     newdc->breakCount       = dc->breakCount;
 307     newdc->breakExtra       = dc->breakExtra;
 308     newdc->breakRem         = dc->breakRem;
 309     newdc->MapMode          = dc->MapMode;
 310     newdc->GraphicsMode     = dc->GraphicsMode;
 311     newdc->CursPosX         = dc->CursPosX;
 312     newdc->CursPosY         = dc->CursPosY;
 313     newdc->ArcDirection     = dc->ArcDirection;
 314     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 315     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 316     newdc->xformVport2World = dc->xformVport2World;
 317     newdc->vport2WorldValid = dc->vport2WorldValid;
 318     newdc->wndOrgX          = dc->wndOrgX;
 319     newdc->wndOrgY          = dc->wndOrgY;
 320     newdc->wndExtX          = dc->wndExtX;
 321     newdc->wndExtY          = dc->wndExtY;
 322     newdc->vportOrgX        = dc->vportOrgX;
 323     newdc->vportOrgY        = dc->vportOrgY;
 324     newdc->vportExtX        = dc->vportExtX;
 325     newdc->vportExtY        = dc->vportExtY;
 326
 327     newdc->hSelf = (HDC)handle;
 328     newdc->saveLevel = 0;
 329
 330     PATH_InitGdiPath( &newdc->path );
 331
 332     newdc->pAbortProc = NULL;
 333     newdc->hookThunk  = NULL;
 334     newdc->hookProc   = 0;
 335
 336     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 337
 338     newdc->hGCClipRgn = newdc->hVisRgn = 0;
 339     if (dc->hClipRgn)
 340     {
 341         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 342         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 343     }
 344     else
 345         newdc->hClipRgn = 0;
 346
 347     if(dc->gdiFont) {
 348         newdc->gdiFont = dc->gdiFont;
 349     } else
 350         newdc->gdiFont = 0;
 351
 352     GDI_ReleaseObj( handle );
 353     GDI_ReleaseObj( hdc );
 354     return handle;
 355 }
 356
 357
 358 /***********************************************************************
 359  *           SetDCState    (GDI.180)
 360  */
 361 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 362 {
 363     DC *dc, *dcs;
 364
 365     if (!(dc = DC_GetDCUpdate( hdc ))) return;
 366     if (!(dcs = DC_GetDCPtr( hdcs )))
 367     {
 368       GDI_ReleaseObj( hdc );
 369       return;
 370     }
 371     if (!dcs->flags & DC_SAVED)
 372     {
 373       GDI_ReleaseObj( hdc );
 374       GDI_ReleaseObj( hdcs );
 375       return;
 376     }
 377     TRACE("%04x %04x\n", hdc, hdcs );
 378
 379     dc->flags            = dcs->flags & ~DC_SAVED;
 380     dc->hDevice          = dcs->hDevice;
 381     dc->totalExtent      = dcs->totalExtent;
 382     dc->ROPmode          = dcs->ROPmode;
 383     dc->polyFillMode     = dcs->polyFillMode;
 384     dc->stretchBltMode   = dcs->stretchBltMode;
 385     dc->relAbsMode       = dcs->relAbsMode;
 386     dc->backgroundMode   = dcs->backgroundMode;
 387     dc->backgroundColor  = dcs->backgroundColor;
 388     dc->textColor        = dcs->textColor;
 389     dc->brushOrgX        = dcs->brushOrgX;
 390     dc->brushOrgY        = dcs->brushOrgY;
 391     dc->textAlign        = dcs->textAlign;
 392     dc->charExtra        = dcs->charExtra;
 393     dc->breakTotalExtra  = dcs->breakTotalExtra;
 394     dc->breakCount       = dcs->breakCount;
 395     dc->breakExtra       = dcs->breakExtra;
 396     dc->breakRem         = dcs->breakRem;
 397     dc->MapMode          = dcs->MapMode;
 398     dc->GraphicsMode     = dcs->GraphicsMode;
 399     dc->CursPosX         = dcs->CursPosX;
 400     dc->CursPosY         = dcs->CursPosY;
 401     dc->ArcDirection     = dcs->ArcDirection;
 402     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 403     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 404     dc->xformVport2World = dcs->xformVport2World;
 405     dc->vport2WorldValid = dcs->vport2WorldValid;
 406
 407     dc->wndOrgX          = dcs->wndOrgX;
 408     dc->wndOrgY          = dcs->wndOrgY;
 409     dc->wndExtX          = dcs->wndExtX;
 410     dc->wndExtY          = dcs->wndExtY;
 411     dc->vportOrgX        = dcs->vportOrgX;
 412     dc->vportOrgY        = dcs->vportOrgY;
 413     dc->vportExtX        = dcs->vportExtX;
 414     dc->vportExtY        = dcs->vportExtY;
 415
 416     if (!(dc->flags & DC_MEMORY)) dc->bitsPerPixel = dcs->bitsPerPixel;
 417
 418     if (dcs->hClipRgn)
 419     {
 420         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 421         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 422     }
 423     else
 424     {
 425         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 426         dc->hClipRgn = 0;
 427     }
 428     CLIPPING_UpdateGCRegion( dc );
 429
 430     SelectObject( hdc, dcs->hBitmap );
 431     SelectObject( hdc, dcs->hBrush );
 432     SelectObject( hdc, dcs->hFont );
 433     SelectObject( hdc, dcs->hPen );
 434     SetBkColor( hdc, dcs->backgroundColor);
 435     SetTextColor( hdc, dcs->textColor);
 436     GDISelectPalette16( hdc, dcs->hPalette, FALSE );
 437     GDI_ReleaseObj( hdcs );
 438     GDI_ReleaseObj( hdc );
 439 }
 440
 441
 442 /***********************************************************************
 443  *           SaveDC    (GDI.30)
 444  */
 445 INT16 WINAPI SaveDC16( HDC16 hdc )
 446 {
 447     return (INT16)SaveDC( hdc );
 448 }
 449
 450
 451 /***********************************************************************
 452  *           SaveDC    (GDI32.@)
 453  */
 454 INT WINAPI SaveDC( HDC hdc )
 455 {
 456     HDC hdcs;
 457     DC * dc, * dcs;
 458     INT ret;
 459
 460     dc = DC_GetDCPtr( hdc );
 461     if (!dc) return 0;
 462
 463     if(dc->funcs->pSaveDC)
 464     {
 465         ret = dc->funcs->pSaveDC( dc->physDev );
 466         GDI_ReleaseObj( hdc );
 467         return ret;
 468     }
 469
 470     if (!(hdcs = GetDCState16( hdc )))
 471     {
 472       GDI_ReleaseObj( hdc );
 473       return 0;
 474     }
 475     dcs = DC_GetDCPtr( hdcs );
 476
 477     /* Copy path. The reason why path saving / restoring is in SaveDC/
 478      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 479      * functions are only in Win16 (which doesn't have paths) and that
 480      * SetDCState doesn't allow us to signal an error (which can happen
 481      * when copying paths).
 482      */
 483     if (!PATH_AssignGdiPath( &dcs->path, &dc->path ))
 484     {
 485         GDI_ReleaseObj( hdc );
 486         GDI_ReleaseObj( hdcs );
 487         DeleteDC( hdcs );
 488         return 0;
 489     }
 490
 491     dcs->header.hNext = dc->header.hNext;
 492     dc->header.hNext = hdcs;
 493     TRACE("(%04x): returning %d\n", hdc, dc->saveLevel+1 );
 494     ret = ++dc->saveLevel;
 495     GDI_ReleaseObj( hdcs );
 496     GDI_ReleaseObj( hdc );
 497     return ret;
 498 }
 499
 500
 501 /***********************************************************************
 502  *           RestoreDC    (GDI.39)
 503  */
 504 BOOL16 WINAPI RestoreDC16( HDC16 hdc, INT16 level )
 505 {
 506     return RestoreDC( hdc, level );
 507 }
 508
 509
 510 /***********************************************************************
 511  *           RestoreDC    (GDI32.@)
 512  */
 513 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 514 {
 515     DC * dc, * dcs;
 516     BOOL success;
 517
 518     TRACE("%04x %d\n", hdc, level );
 519     dc = DC_GetDCUpdate( hdc );
 520     if(!dc) return FALSE;
 521     if(dc->funcs->pRestoreDC)
 522     {
 523         success = dc->funcs->pRestoreDC( dc->physDev, level );
 524         GDI_ReleaseObj( hdc );
 525         return success;
 526     }
 527
 528     if (level == -1) level = dc->saveLevel;
 529     if ((level < 1)
 530             /* This pair of checks disagrees with MSDN "Platform SDK:
 531                Windows GDI" July 2000 which says all negative values
 532                for level will be interpreted as an instance relative
 533                to the current state.  Restricting it to just -1 does
 534                not satisfy this */
 535         || (level > dc->saveLevel))
 536     {
 537         GDI_ReleaseObj( hdc );
 538         return FALSE;
 539     }
 540
 541     success=TRUE;
 542     while (dc->saveLevel >= level)
 543     {
 544         HDC16 hdcs = dc->header.hNext;
 545         if (!(dcs = DC_GetDCPtr( hdcs )))
 546         {
 547           GDI_ReleaseObj( hdc );
 548           return FALSE;
 549         }
 550         dc->header.hNext = dcs->header.hNext;
 551         if (--dc->saveLevel < level)
 552         {
 553             SetDCState16( hdc, hdcs );
 554             if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
 555                 /* FIXME: This might not be quite right, since we're
 556                  * returning FALSE but still destroying the saved DC state */
 557                 success=FALSE;
 558         }
 559         GDI_ReleaseObj( hdcs );
 560         GDI_ReleaseObj( hdc );
 561         DeleteDC( hdcs );
 562         if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 563     }
 564     GDI_ReleaseObj( hdc );
 565     return success;
 566 }
 567
 568
 569 /***********************************************************************
 570  *           CreateDC    (GDI.53)
 571  */
 572 HDC16 WINAPI CreateDC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 573                          const DEVMODEA *initData )
 574 {
 575     return CreateDCA( driver, device, output, initData );
 576 }
 577
 578 /***********************************************************************
 579  *           CreateDCA    (GDI32.@)
 580  */
 581 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 582                           const DEVMODEA *initData )
 583 {
 584     HDC hdc;
 585     DC * dc;
 586     const DC_FUNCTIONS *funcs;
 587     char buf[300];
 588
 589     GDI_CheckNotLock();
 590
 591     if (!device || !DRIVER_GetDriverName( device, buf, sizeof(buf) ))
 592         strcpy(buf, driver);
 593
 594     if (!(funcs = DRIVER_load_driver( buf )))
 595     {
 596         ERR( "no driver found for %s\n", buf );
 597         return 0;
 598     }
 599     if (!(dc = DC_AllocDC( funcs )))
 600     {
 601         DRIVER_release_driver( funcs );
 602         return 0;
 603     }
 604
 605     dc->flags = 0;
 606
 607     TRACE("(driver=%s, device=%s, output=%s): returning %04x\n",
 608                debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
 609
 610     if (dc->funcs->pCreateDC &&
 611         !dc->funcs->pCreateDC( dc, &dc->physDev, buf, device, output, initData ))
 612     {
 613         WARN("creation aborted by device\n" );
 614         GDI_FreeObject( dc->hSelf, dc );
 615         DRIVER_release_driver( funcs );
 616         return 0;
 617     }
 618
 619     dc->totalExtent.left   = 0;
 620     dc->totalExtent.top    = 0;
 621     dc->totalExtent.right  = GetDeviceCaps( dc->hSelf, HORZRES );
 622     dc->totalExtent.bottom = GetDeviceCaps( dc->hSelf, VERTRES );
 623     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 624
 625     DC_InitDC( dc );
 626     hdc = dc->hSelf;
 627     GDI_ReleaseObj( hdc );
 628     return hdc;
 629 }
 630
 631
 632 /***********************************************************************
 633  *           CreateDCW    (GDI32.@)
 634  */
 635 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 636                           const DEVMODEW *initData )
 637 {
 638     LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
 639     LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
 640     LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
 641     HDC res = CreateDCA( driverA, deviceA, outputA,
 642                             (const DEVMODEA *)initData /*FIXME*/ );
 643     HeapFree( GetProcessHeap(), 0, driverA );
 644     HeapFree( GetProcessHeap(), 0, deviceA );
 645     HeapFree( GetProcessHeap(), 0, outputA );
 646     return res;
 647 }
 648
 649
 650 /***********************************************************************
 651  *           CreateIC    (GDI.153)
 652  */
 653 HDC16 WINAPI CreateIC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 654                          const DEVMODEA* initData )
 655 {
 656       /* Nothing special yet for ICs */
 657     return CreateDC16( driver, device, output, initData );
 658 }
 659
 660
 661 /***********************************************************************
 662  *           CreateICA    (GDI32.@)
 663  */
 664 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 665                           const DEVMODEA* initData )
 666 {
 667       /* Nothing special yet for ICs */
 668     return CreateDCA( driver, device, output, initData );
 669 }
 670
 671
 672 /***********************************************************************
 673  *           CreateICW    (GDI32.@)
 674  */
 675 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 676                           const DEVMODEW* initData )
 677 {
 678       /* Nothing special yet for ICs */
 679     return CreateDCW( driver, device, output, initData );
 680 }
 681
 682
 683 /***********************************************************************
 684  *           CreateCompatibleDC    (GDI.52)
 685  */
 686 HDC16 WINAPI CreateCompatibleDC16( HDC16 hdc )
 687 {
 688     return (HDC16)CreateCompatibleDC( hdc );
 689 }
 690
 691
 692 /***********************************************************************
 693  *           CreateCompatibleDC   (GDI32.@)
 694  */
 695 HDC WINAPI CreateCompatibleDC( HDC hdc )
 696 {
 697     DC *dc, *origDC;
 698     const DC_FUNCTIONS *funcs;
 699
 700     GDI_CheckNotLock();
 701
 702     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC )))
 703     {
 704         funcs = origDC->funcs;
 705         GDI_ReleaseObj( hdc ); /* can't hold the lock while loading the driver */
 706         funcs = DRIVER_get_driver( funcs );
 707     }
 708     else funcs = DRIVER_load_driver( "DISPLAY" );
 709
 710     if (!funcs) return 0;
 711
 712     if (!(dc = DC_AllocDC( funcs )))
 713     {
 714         DRIVER_release_driver( funcs );
 715         return 0;
 716     }
 717
 718     TRACE("(%04x): returning %04x\n",
 719                hdc, dc->hSelf );
 720
 721     dc->flags        = DC_MEMORY;
 722     dc->bitsPerPixel = 1;
 723     dc->hBitmap      = GetStockObject( DEFAULT_BITMAP );
 724
 725     /* Copy the driver-specific physical device info into
 726      * the new DC. The driver may use this read-only info
 727      * while creating the compatible DC below. */
 728     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC ))) dc->physDev = origDC->physDev;
 729
 730     if (dc->funcs->pCreateDC &&
 731         !dc->funcs->pCreateDC( dc, &dc->physDev, NULL, NULL, NULL, NULL ))
 732     {
 733         WARN("creation aborted by device\n");
 734         GDI_FreeObject( dc->hSelf, dc );
 735         if (origDC) GDI_ReleaseObj( hdc );
 736         DRIVER_release_driver( funcs );
 737         return 0;
 738     }
 739
 740     dc->totalExtent.left   = 0;
 741     dc->totalExtent.top    = 0;
 742     dc->totalExtent.right  = 1;  /* default bitmap is 1x1 */
 743     dc->totalExtent.bottom = 1;
 744     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 745
 746     DC_InitDC( dc );
 747     GDI_ReleaseObj( dc->hSelf );
 748     if (origDC) GDI_ReleaseObj( hdc );
 749     return dc->hSelf;
 750 }
 751
 752
 753 /***********************************************************************
 754  *           DeleteDC    (GDI.68)
 755  */
 756 BOOL16 WINAPI DeleteDC16( HDC16 hdc )
 757 {
 758     return DeleteDC( hdc );
 759 }
 760
 761
 762 /***********************************************************************
 763  *           DeleteDC    (GDI32.@)
 764  */
 765 BOOL WINAPI DeleteDC( HDC hdc )
 766 {
 767     const DC_FUNCTIONS *funcs = NULL;
 768     DC * dc;
 769
 770     TRACE("%04x\n", hdc );
 771
 772     GDI_CheckNotLock();
 773
 774     if (!(dc = GDI_GetObjPtr( hdc, DC_MAGIC ))) return FALSE;
 775
 776     /* Call hook procedure to check whether is it OK to delete this DC */
 777     if (dc->hookThunk && !(dc->flags & (DC_SAVED | DC_MEMORY)))
 778     {
 779         DCHOOKPROC proc = dc->hookThunk;
 780         if (proc)
 781         {
 782             DWORD data = dc->dwHookData;
 783             GDI_ReleaseObj( hdc );
 784             if (!proc( hdc, DCHC_DELETEDC, data, 0 )) return FALSE;
 785             if (!(dc = DC_GetDCPtr( hdc ))) return TRUE;  /* deleted by the hook */
 786         }
 787     }
 788
 789     while (dc->saveLevel)
 790     {
 791         DC * dcs;
 792         HDC16 hdcs = dc->header.hNext;
 793         if (!(dcs = DC_GetDCPtr( hdcs ))) break;
 794         dc->header.hNext = dcs->header.hNext;
 795         dc->saveLevel--;
 796         if (dcs->hClipRgn) DeleteObject( dcs->hClipRgn );
 797         if (dcs->hVisRgn) DeleteObject( dcs->hVisRgn );
 798         if (dcs->hGCClipRgn) DeleteObject( dcs->hGCClipRgn );
 799         PATH_DestroyGdiPath(&dcs->path);
 800         GDI_FreeObject( hdcs, dcs );
 801     }
 802
 803     if (!(dc->flags & DC_SAVED))
 804     {
 805         SelectObject( hdc, GetStockObject(BLACK_PEN) );
 806         SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 807         SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 808         SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 809         funcs = dc->funcs;
 810         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
 811         dc->physDev = NULL;
 812     }
 813
 814     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 815     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 816     if (dc->hGCClipRgn) DeleteObject( dc->hGCClipRgn );
 817     PATH_DestroyGdiPath(&dc->path);
 818
 819     GDI_FreeObject( hdc, dc );
 820     if (funcs) DRIVER_release_driver( funcs );  /* do that after releasing the GDI lock */
 821     return TRUE;
 822 }
 823
 824
 825 /***********************************************************************
 826  *           ResetDC    (GDI.376)
 827  */
 828 HDC16 WINAPI ResetDC16( HDC16 hdc, const DEVMODEA *devmode )
 829 {
 830     return ResetDCA(hdc, devmode);
 831 }
 832
 833
 834 /***********************************************************************
 835  *           ResetDCA    (GDI32.@)
 836  */
 837 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 838 {
 839     DC *dc;
 840     HDC ret = hdc;
 841
 842     if ((dc = DC_GetDCPtr( hdc )))
 843     {
 844         if (dc->funcs->pResetDC) ret = dc->funcs->pResetDC( dc->physDev, devmode );
 845         GDI_ReleaseObj( hdc );
 846     }
 847     return ret;
 848 }
 849
 850
 851 /***********************************************************************
 852  *           ResetDCW    (GDI32.@)
 853  */
 854 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 855 {
 856     return ResetDCA(hdc, (const DEVMODEA*)devmode); /* FIXME */
 857 }
 858
 859
 860 /***********************************************************************
 861  *           GetDeviceCaps    (GDI.80)
 862  */
 863 INT16 WINAPI GetDeviceCaps16( HDC16 hdc, INT16 cap )
 864 {
 865     INT16 ret = GetDeviceCaps( hdc, cap );
 866     /* some apps don't expect -1 and think it's a B&W screen */
 867     if ((cap == NUMCOLORS) && (ret == -1)) ret = 2048;
 868     return ret;
 869 }
 870
 871
 872 /***********************************************************************
 873  *           GetDeviceCaps    (GDI32.@)
 874  */
 875 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 876 {
 877     DC *dc;
 878     INT ret = 0;
 879
 880     if ((dc = DC_GetDCPtr( hdc )))
 881     {
 882         if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
 883         GDI_ReleaseObj( hdc );
 884     }
 885     return ret;
 886 }
 887
 888
 889 /***********************************************************************
 890  *           SetBkColor    (GDI.1)
 891  */
 892 COLORREF WINAPI SetBkColor16( HDC16 hdc, COLORREF color )
 893 {
 894     return SetBkColor( hdc, color );
 895 }
 896
 897
 898 /***********************************************************************
 899  *           SetBkColor    (GDI32.@)
 900  */
 901 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 902 {
 903     COLORREF oldColor;
 904     DC * dc = DC_GetDCPtr( hdc );
 905
 906     if (!dc) return CLR_INVALID;
 907     oldColor = dc->backgroundColor;
 908     if (dc->funcs->pSetBkColor)
 909     {
 910         color = dc->funcs->pSetBkColor(dc->physDev, color);
 911         if (color == CLR_INVALID)  /* don't change it */
 912         {
 913             color = oldColor;
 914             oldColor = CLR_INVALID;
 915         }
 916     }
 917     dc->backgroundColor = color;
 918     GDI_ReleaseObj( hdc );
 919     return oldColor;
 920 }
 921
 922
 923 /***********************************************************************
 924  *           SetTextColor    (GDI.9)
 925  */
 926 COLORREF WINAPI SetTextColor16( HDC16 hdc, COLORREF color )
 927 {
 928     return SetTextColor( hdc, color );
 929 }
 930
 931
 932 /***********************************************************************
 933  *           SetTextColor    (GDI32.@)
 934  */
 935 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 936 {
 937     COLORREF oldColor;
 938     DC * dc = DC_GetDCPtr( hdc );
 939
 940     if (!dc) return CLR_INVALID;
 941     oldColor = dc->textColor;
 942     if (dc->funcs->pSetTextColor)
 943     {
 944         color = dc->funcs->pSetTextColor(dc->physDev, color);
 945         if (color == CLR_INVALID)  /* don't change it */
 946         {
 947             color = oldColor;
 948             oldColor = CLR_INVALID;
 949         }
 950     }
 951     dc->textColor = color;
 952     GDI_ReleaseObj( hdc );
 953     return oldColor;
 954 }
 955
 956 /***********************************************************************
 957  *           SetTextAlign    (GDI.346)
 958  */
 959 UINT16 WINAPI SetTextAlign16( HDC16 hdc, UINT16 align )
 960 {
 961     return SetTextAlign( hdc, align );
 962 }
 963
 964
 965 /***********************************************************************
 966  *           SetTextAlign    (GDI32.@)
 967  */
 968 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 969 {
 970     UINT prevAlign;
 971     DC *dc = DC_GetDCPtr( hdc );
 972     if (!dc) return 0x0;
 973     if (dc->funcs->pSetTextAlign)
 974         prevAlign = dc->funcs->pSetTextAlign(dc->physDev, align);
 975     else {
 976         prevAlign = dc->textAlign;
 977         dc->textAlign = align;
 978     }
 979     GDI_ReleaseObj( hdc );
 980     return prevAlign;
 981 }
 982
 983 /***********************************************************************
 984  *           GetDCOrgEx  (GDI32.@)
 985  */
 986 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 987 {
 988     DC * dc;
 989
 990     if (!lpp) return FALSE;
 991     if (!(dc = DC_GetDCPtr( hDC ))) return FALSE;
 992
 993     lpp->x = lpp->y = 0;
 994     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
 995     GDI_ReleaseObj( hDC );
 996     return TRUE;
 997 }
 998
 999
1000 /***********************************************************************
1001  *           GetDCOrg    (GDI.79)
1002  */
1003 DWORD WINAPI GetDCOrg16( HDC16 hdc )
1004 {
1005     POINT       pt;
1006     if( GetDCOrgEx( hdc, &pt) )
1007         return MAKELONG( (WORD)pt.x, (WORD)pt.y );
1008     return 0;
1009 }
1010
1011
1012 /***********************************************************************
1013  *           SetDCOrg    (GDI.117)
1014  */
1015 DWORD WINAPI SetDCOrg16( HDC16 hdc, INT16 x, INT16 y )
1016 {
1017     DWORD prevOrg = 0;
1018     DC *dc = DC_GetDCPtr( hdc );
1019     if (!dc) return 0;
1020     if (dc->funcs->pSetDCOrg) prevOrg = dc->funcs->pSetDCOrg( dc->physDev, x, y );
1021     GDI_ReleaseObj( hdc );
1022     return prevOrg;
1023 }
1024
1025
1026 /***********************************************************************
1027  *           SetGraphicsMode    (GDI32.@)
1028  */
1029 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
1030 {
1031     INT ret = 0;
1032     DC *dc = DC_GetDCPtr( hdc );
1033
1034     /* One would think that setting the graphics mode to GM_COMPATIBLE
1035      * would also reset the world transformation matrix to the unity
1036      * matrix. However, in Windows, this is not the case. This doesn't
1037      * make a lot of sense to me, but that's the way it is.
1038      */
1039     if (!dc) return 0;
1040     if ((mode > 0) || (mode <= GM_LAST))
1041     {
1042         ret = dc->GraphicsMode;
1043         dc->GraphicsMode = mode;
1044     }
1045     GDI_ReleaseObj( hdc );
1046     return ret;
1047 }
1048
1049
1050 /***********************************************************************
1051  *           SetArcDirection    (GDI.525)
1052  */
1053 INT16 WINAPI SetArcDirection16( HDC16 hdc, INT16 nDirection )
1054 {
1055     return SetArcDirection( (HDC)hdc, (INT)nDirection );
1056 }
1057
1058
1059 /***********************************************************************
1060  *           SetArcDirection    (GDI32.@)
1061  */
1062 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
1063 {
1064     DC * dc;
1065     INT nOldDirection = 0;
1066
1067     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1068     {
1069         SetLastError(ERROR_INVALID_PARAMETER);
1070         return 0;
1071     }
1072
1073     if ((dc = DC_GetDCPtr( hdc )))
1074     {
1075         nOldDirection = dc->ArcDirection;
1076         dc->ArcDirection = nDirection;
1077         GDI_ReleaseObj( hdc );
1078     }
1079     return nOldDirection;
1080 }
1081
1082
1083 /***********************************************************************
1084  *           GetWorldTransform    (GDI32.@)
1085  */
1086 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1087 {
1088     DC * dc;
1089     if (!xform) return FALSE;
1090     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
1091     *xform = dc->xformWorld2Wnd;
1092     GDI_ReleaseObj( hdc );
1093     return TRUE;
1094 }
1095
1096
1097 /***********************************************************************
1098  *           SetWorldTransform    (GDI32.@)
1099  */
1100 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1101 {
1102     BOOL ret = FALSE;
1103     DC *dc = DC_GetDCPtr( hdc );
1104
1105     if (!dc) return FALSE;
1106     if (!xform) goto done;
1107
1108     /* Check that graphics mode is GM_ADVANCED */
1109     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1110
1111     dc->xformWorld2Wnd = *xform;
1112     DC_UpdateXforms( dc );
1113     ret = TRUE;
1114  done:
1115     GDI_ReleaseObj( hdc );
1116     return ret;
1117 }
1118
1119
1120 /****************************************************************************
1121  * ModifyWorldTransform [GDI32.@]
1122  * Modifies the world transformation for a device context.
1123  *
1124  * PARAMS
1125  *    hdc   [I] Handle to device context
1126  *    xform [I] XFORM structure that will be used to modify the world
1127  *              transformation
1128  *    iMode [I] Specifies in what way to modify the world transformation
1129  *              Possible values:
1130  *              MWT_IDENTITY
1131  *                 Resets the world transformation to the identity matrix.
1132  *                 The parameter xform is ignored.
1133  *              MWT_LEFTMULTIPLY
1134  *                 Multiplies xform into the world transformation matrix from
1135  *                 the left.
1136  *              MWT_RIGHTMULTIPLY
1137  *                 Multiplies xform into the world transformation matrix from
1138  *                 the right.
1139  *
1140  * RETURNS STD
1141  */
1142 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1143     DWORD iMode )
1144 {
1145     BOOL ret = FALSE;
1146     DC *dc = DC_GetDCPtr( hdc );
1147
1148     /* Check for illegal parameters */
1149     if (!dc) return FALSE;
1150     if (!xform) goto done;
1151
1152     /* Check that graphics mode is GM_ADVANCED */
1153     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1154
1155     switch (iMode)
1156     {
1157         case MWT_IDENTITY:
1158             dc->xformWorld2Wnd.eM11 = 1.0f;
1159             dc->xformWorld2Wnd.eM12 = 0.0f;
1160             dc->xformWorld2Wnd.eM21 = 0.0f;
1161             dc->xformWorld2Wnd.eM22 = 1.0f;
1162             dc->xformWorld2Wnd.eDx  = 0.0f;
1163             dc->xformWorld2Wnd.eDy  = 0.0f;
1164             break;
1165         case MWT_LEFTMULTIPLY:
1166             CombineTransform( &dc->xformWorld2Wnd, xform,
1167                 &dc->xformWorld2Wnd );
1168             break;
1169         case MWT_RIGHTMULTIPLY:
1170             CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1171                 xform );
1172             break;
1173         default:
1174             goto done;
1175     }
1176
1177     DC_UpdateXforms( dc );
1178     ret = TRUE;
1179  done:
1180     GDI_ReleaseObj( hdc );
1181     return ret;
1182 }
1183
1184
1185 /****************************************************************************
1186  * CombineTransform [GDI32.@]
1187  * Combines two transformation matrices.
1188  *
1189  * PARAMS
1190  *    xformResult [O] Stores the result of combining the two matrices
1191  *    xform1      [I] Specifies the first matrix to apply
1192  *    xform2      [I] Specifies the second matrix to apply
1193  *
1194  * REMARKS
1195  *    The same matrix can be passed in for more than one of the parameters.
1196  *
1197  * RETURNS STD
1198  */
1199 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1200     const XFORM *xform2 )
1201 {
1202     XFORM xformTemp;
1203
1204     /* Check for illegal parameters */
1205     if (!xformResult || !xform1 || !xform2)
1206         return FALSE;
1207
1208     /* Create the result in a temporary XFORM, since xformResult may be
1209      * equal to xform1 or xform2 */
1210     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1211                      xform1->eM12 * xform2->eM21;
1212     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1213                      xform1->eM12 * xform2->eM22;
1214     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1215                      xform1->eM22 * xform2->eM21;
1216     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1217                      xform1->eM22 * xform2->eM22;
1218     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1219                      xform1->eDy  * xform2->eM21 +
1220                      xform2->eDx;
1221     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1222                      xform1->eDy  * xform2->eM22 +
1223                      xform2->eDy;
1224
1225     /* Copy the result to xformResult */
1226     *xformResult = xformTemp;
1227
1228     return TRUE;
1229 }
1230
1231
1232 /***********************************************************************
1233  *           SetDCHook   (GDI32.@)
1234  *
1235  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1236  */
1237 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD dwHookData )
1238 {
1239     DC *dc = DC_GetDCPtr( hdc );
1240
1241     if (!dc) return FALSE;
1242     dc->dwHookData = dwHookData;
1243     dc->hookThunk = hookProc;
1244     GDI_ReleaseObj( hdc );
1245     return TRUE;
1246 }
1247
1248
1249 /* relay function to call the 16-bit DC hook proc */
1250 static BOOL16 WINAPI call_dc_hook16( HDC16 hdc, WORD code, DWORD data, LPARAM lParam )
1251 {
1252     FARPROC16 proc = NULL;
1253     DC *dc = DC_GetDCPtr( hdc );
1254     if (!dc) return FALSE;
1255     proc = dc->hookProc;
1256     GDI_ReleaseObj( hdc );
1257     if (!proc) return FALSE;
1258     return GDI_CallTo16_word_wwll( proc, hdc, code, data, lParam );
1259 }
1260
1261 /***********************************************************************
1262  *           SetDCHook   (GDI.190)
1263  */
1264 BOOL16 WINAPI SetDCHook16( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
1265 {
1266     DC *dc = DC_GetDCPtr( hdc );
1267     if (!dc) return FALSE;
1268
1269     dc->hookProc = hookProc;
1270     GDI_ReleaseObj( hdc );
1271     return SetDCHook( hdc, call_dc_hook16, dwHookData );
1272 }
1273
1274
1275 /***********************************************************************
1276  *           GetDCHook   (GDI.191)
1277  */
1278 DWORD WINAPI GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
1279 {
1280     DC *dc = DC_GetDCPtr( hdc );
1281     if (!dc) return 0;
1282     *phookProc = dc->hookProc;
1283     GDI_ReleaseObj( hdc );
1284     return dc->dwHookData;
1285 }
1286
1287
1288 /***********************************************************************
1289  *           SetHookFlags       (GDI.192)
1290  */
1291 WORD WINAPI SetHookFlags16(HDC16 hDC, WORD flags)
1292 {
1293     DC *dc = DC_GetDCPtr( hDC );
1294
1295     if( dc )
1296     {
1297         WORD wRet = dc->flags & DC_DIRTY;
1298
1299         /* "Undocumented Windows" info is slightly confusing.
1300          */
1301
1302         TRACE("hDC %04x, flags %04x\n",hDC,flags);
1303
1304         if( flags & DCHF_INVALIDATEVISRGN )
1305             dc->flags |= DC_DIRTY;
1306         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1307             dc->flags &= ~DC_DIRTY;
1308         GDI_ReleaseObj( hDC );
1309         return wRet;
1310     }
1311     return 0;
1312 }
1313
1314 /***********************************************************************
1315  *           SetICMMode    (GDI32.@)
1316  */
1317 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1318 {
1319 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1320     if (iEnableICM == ICM_OFF) return ICM_OFF;
1321     if (iEnableICM == ICM_ON) return 0;
1322     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1323     return 0;
1324 }
1325
1326 /***********************************************************************
1327  *           GetDeviceGammaRamp    (GDI32.@)
1328  */
1329 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1330 {
1331     BOOL ret = FALSE;
1332     DC *dc = DC_GetDCPtr( hDC );
1333
1334     if( dc )
1335     {
1336         if (dc->funcs->pGetDeviceGammaRamp)
1337             ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1338         GDI_ReleaseObj( hDC );
1339     }
1340     return ret;
1341 }
1342
1343 /***********************************************************************
1344  *           SetDeviceGammaRamp    (GDI32.@)
1345  */
1346 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1347 {
1348     BOOL ret = FALSE;
1349     DC *dc = DC_GetDCPtr( hDC );
1350
1351     if( dc )
1352     {
1353         if (dc->funcs->pSetDeviceGammaRamp)
1354             ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1355         GDI_ReleaseObj( hDC );
1356     }
1357     return ret;
1358 }
1359
1360 /***********************************************************************
1361  *           GetColorSpace    (GDI32.@)
1362  */
1363 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1364 {
1365 /*FIXME    Need to to whatever GetColorSpace actually does */
1366     return 0;
1367 }
1368
1369 /***********************************************************************
1370  *           CreateColorSpaceA    (GDI32.@)
1371  */
1372 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1373 {
1374   FIXME( "stub\n" );
1375   return 0;
1376 }
1377
1378 /***********************************************************************
1379  *           CreateColorSpaceW    (GDI32.@)
1380  */
1381 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1382 {
1383   FIXME( "stub\n" );
1384   return 0;
1385 }
1386
1387 /***********************************************************************
1388  *           DeleteColorSpace     (GDI32.@)
1389  */
1390 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1391 {
1392   FIXME( "stub\n" );
1393
1394   return TRUE;
1395 }
1396
1397 /***********************************************************************
1398  *           SetColorSpace     (GDI32.@)
1399  */
1400 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1401 {
1402   FIXME( "stub\n" );
1403
1404   return hColorSpace;
1405 }
1406
1407 /***********************************************************************
1408  *           GetBoundsRect    (GDI.194)
1409  */
1410 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1411 {
1412     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1413 }
1414
1415 /***********************************************************************
1416  *           GetBoundsRect    (GDI32.@)
1417  */
1418 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1419 {
1420     FIXME("(): stub\n");
1421     return DCB_RESET;   /* bounding rectangle always empty */
1422 }
1423
1424 /***********************************************************************
1425  *           SetBoundsRect    (GDI.193)
1426  */
1427 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1428 {
1429     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1430         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1431
1432     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1433 }
1434
1435 /***********************************************************************
1436  *           SetBoundsRect    (GDI32.@)
1437  */
1438 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1439 {
1440     FIXME("(): stub\n");
1441     return DCB_DISABLE;   /* bounding rectangle always empty */
1442 }
1443
1444
1445 /***********************************************************************
1446  *              GetRelAbs               (GDI32.@)
1447  */
1448 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1449 {
1450     INT ret = 0;
1451     DC *dc = DC_GetDCPtr( hdc );
1452     if (dc) ret = dc->relAbsMode;
1453     GDI_ReleaseObj( hdc );
1454     return ret;
1455 }
1456
1457 /***********************************************************************
1458  *           Death    (GDI.121)
1459  *
1460  * Disables GDI, switches back to text mode.
1461  * We don't have to do anything here,
1462  * just let console support handle everything
1463  */
1464 void WINAPI Death16(HDC16 hDC)
1465 {
1466     MESSAGE("Death(%04x) called. Application enters text mode...\n", hDC);
1467 }
1468
1469 /***********************************************************************
1470  *           Resurrection    (GDI.122)
1471  *
1472  * Restores GDI functionality
1473  */
1474 void WINAPI Resurrection16(HDC16 hDC,
1475                            WORD w1, WORD w2, WORD w3, WORD w4, WORD w5, WORD w6)
1476 {
1477     MESSAGE("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC, w1, w2, w3, w4, w5, w6);
1478 }
1479
1480 /***********************************************************************
1481  *           GetLayout    (GDI32.@)
1482  *
1483  * Gets left->right or right->left text layout flags of a dc.
1484  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1485  *
1486  */
1487 DWORD WINAPI GetLayout(HDC hdc)
1488 {
1489     FIXME("(%08x): stub\n", hdc);
1490     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1491     return 0;
1492 }
1493
1494 /***********************************************************************
1495  *           SetLayout    (GDI32.@)
1496  *
1497  * Sets left->right or right->left text layout flags of a dc.
1498  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1499  *
1500  */
1501 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1502 {
1503     FIXME("(%08x,%08lx): stub\n", hdc, layout);
1504     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1505     return 0;
1506 }