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->DCOrgX              = 0;
 111     dc->DCOrgY              = 0;
 112     dc->pAbortProc          = NULL;
 113     dc->CursPosX            = 0;
 114     dc->CursPosY            = 0;
 115     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 116     dc->xformWorld2Wnd.eM11 = 1.0f;
 117     dc->xformWorld2Wnd.eM12 = 0.0f;
 118     dc->xformWorld2Wnd.eM21 = 0.0f;
 119     dc->xformWorld2Wnd.eM22 = 1.0f;
 120     dc->xformWorld2Wnd.eDx  = 0.0f;
 121     dc->xformWorld2Wnd.eDy  = 0.0f;
 122     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 123     dc->xformVport2World    = dc->xformWorld2Wnd;
 124     dc->vport2WorldValid    = TRUE;
 125     PATH_InitGdiPath(&dc->path);
 126     return dc;
 127 }
 128
 129
 130
 131 /***********************************************************************
 132  *           DC_GetDCPtr
 133  */
 134 DC *DC_GetDCPtr( HDC hdc )
 135 {
 136     GDIOBJHDR *ptr = GDI_GetObjPtr( hdc, MAGIC_DONTCARE );
 137     if (!ptr) return NULL;
 138     if ((GDIMAGIC(ptr->wMagic) == DC_MAGIC) ||
 139         (GDIMAGIC(ptr->wMagic) == METAFILE_DC_MAGIC) ||
 140         (GDIMAGIC(ptr->wMagic) == ENHMETAFILE_DC_MAGIC))
 141         return (DC *)ptr;
 142     GDI_ReleaseObj( hdc );
 143     SetLastError( ERROR_INVALID_HANDLE );
 144     return NULL;
 145 }
 146
 147 /***********************************************************************
 148  *           DC_GetDCUpdate
 149  *
 150  * Retrieve a DC ptr while making sure the visRgn is updated.
 151  * This function may call up to USER so the GDI lock should _not_
 152  * be held when calling it.
 153  */
 154 DC *DC_GetDCUpdate( HDC hdc )
 155 {
 156     DC *dc = DC_GetDCPtr( hdc );
 157     if (!dc) return NULL;
 158     while (dc->flags & DC_DIRTY)
 159     {
 160         dc->flags &= ~DC_DIRTY;
 161         if (!(dc->flags & (DC_SAVED | DC_MEMORY)))
 162         {
 163             DCHOOKPROC proc = dc->hookThunk;
 164             if (proc)
 165             {
 166                 DWORD data = dc->dwHookData;
 167                 GDI_ReleaseObj( hdc );
 168                 proc( hdc, DCHC_INVALIDVISRGN, data, 0 );
 169                 if (!(dc = DC_GetDCPtr( hdc ))) break;
 170                 /* otherwise restart the loop in case it became dirty again in the meantime */
 171             }
 172         }
 173     }
 174     return dc;
 175 }
 176
 177
 178 /***********************************************************************
 179  *           DC_DeleteObject
 180  */
 181 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj )
 182 {
 183     GDI_ReleaseObj( handle );
 184     return DeleteDC( handle );
 185 }
 186
 187
 188 /***********************************************************************
 189  *           DC_InitDC
 190  *
 191  * Setup device-specific DC values for a newly created DC.
 192  */
 193 void DC_InitDC( DC* dc )
 194 {
 195     RealizeDefaultPalette16( dc->hSelf );
 196     SetTextColor( dc->hSelf, dc->textColor );
 197     SetBkColor( dc->hSelf, dc->backgroundColor );
 198     SelectObject( dc->hSelf, dc->hPen );
 199     SelectObject( dc->hSelf, dc->hBrush );
 200     SelectObject( dc->hSelf, dc->hFont );
 201     CLIPPING_UpdateGCRegion( dc );
 202 }
 203
 204
 205 /***********************************************************************
 206  *           DC_InvertXform
 207  *
 208  * Computes the inverse of the transformation xformSrc and stores it to
 209  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 210  * is singular.
 211  */
 212 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 213 {
 214     FLOAT determinant;
 215
 216     determinant = xformSrc->eM11*xformSrc->eM22 -
 217         xformSrc->eM12*xformSrc->eM21;
 218     if (determinant > -1e-12 && determinant < 1e-12)
 219         return FALSE;
 220
 221     xformDest->eM11 =  xformSrc->eM22 / determinant;
 222     xformDest->eM12 = -xformSrc->eM12 / determinant;
 223     xformDest->eM21 = -xformSrc->eM21 / determinant;
 224     xformDest->eM22 =  xformSrc->eM11 / determinant;
 225     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 226                        xformSrc->eDy * xformDest->eM21;
 227     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 228                        xformSrc->eDy * xformDest->eM22;
 229
 230     return TRUE;
 231 }
 232
 233
 234 /***********************************************************************
 235  *           DC_UpdateXforms
 236  *
 237  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 238  * fields of the specified DC by creating a transformation that
 239  * represents the current mapping mode and combining it with the DC's
 240  * world transform. This function should be called whenever the
 241  * parameters associated with the mapping mode (window and viewport
 242  * extents and origins) or the world transform change.
 243  */
 244 void DC_UpdateXforms( DC *dc )
 245 {
 246     XFORM xformWnd2Vport;
 247     FLOAT scaleX, scaleY;
 248
 249     /* Construct a transformation to do the window-to-viewport conversion */
 250     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 251     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 252     xformWnd2Vport.eM11 = scaleX;
 253     xformWnd2Vport.eM12 = 0.0;
 254     xformWnd2Vport.eM21 = 0.0;
 255     xformWnd2Vport.eM22 = scaleY;
 256     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 257         scaleX * (FLOAT)dc->wndOrgX;
 258     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 259         scaleY * (FLOAT)dc->wndOrgY;
 260
 261     /* Combine with the world transformation */
 262     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 263         &xformWnd2Vport );
 264
 265     /* Create inverse of world-to-viewport transformation */
 266     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 267         &dc->xformVport2World );
 268 }
 269
 270
 271 /***********************************************************************
 272  *           GetDCState    (GDI.179)
 273  */
 274 HDC16 WINAPI GetDCState16( HDC16 hdc )
 275 {
 276     DC * newdc, * dc;
 277     HGDIOBJ handle;
 278
 279     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 280     if (!(newdc = GDI_AllocObject( sizeof(DC), DC_MAGIC, &handle, &dc_funcs )))
 281     {
 282       GDI_ReleaseObj( hdc );
 283       return 0;
 284     }
 285     TRACE("(%04x): returning %04x\n", hdc, handle );
 286
 287     newdc->flags            = dc->flags | DC_SAVED;
 288     newdc->hPen             = dc->hPen;
 289     newdc->hBrush           = dc->hBrush;
 290     newdc->hFont            = dc->hFont;
 291     newdc->hBitmap          = dc->hBitmap;
 292     newdc->hDevice          = dc->hDevice;
 293     newdc->hPalette         = dc->hPalette;
 294     newdc->totalExtent      = dc->totalExtent;
 295     newdc->bitsPerPixel     = dc->bitsPerPixel;
 296     newdc->ROPmode          = dc->ROPmode;
 297     newdc->polyFillMode     = dc->polyFillMode;
 298     newdc->stretchBltMode   = dc->stretchBltMode;
 299     newdc->relAbsMode       = dc->relAbsMode;
 300     newdc->backgroundMode   = dc->backgroundMode;
 301     newdc->backgroundColor  = dc->backgroundColor;
 302     newdc->textColor        = dc->textColor;
 303     newdc->brushOrgX        = dc->brushOrgX;
 304     newdc->brushOrgY        = dc->brushOrgY;
 305     newdc->textAlign        = dc->textAlign;
 306     newdc->charExtra        = dc->charExtra;
 307     newdc->breakTotalExtra  = dc->breakTotalExtra;
 308     newdc->breakCount       = dc->breakCount;
 309     newdc->breakExtra       = dc->breakExtra;
 310     newdc->breakRem         = dc->breakRem;
 311     newdc->MapMode          = dc->MapMode;
 312     newdc->GraphicsMode     = dc->GraphicsMode;
 313 #if 0
 314     /* Apparently, the DC origin is not changed by [GS]etDCState */
 315     newdc->DCOrgX           = dc->DCOrgX;
 316     newdc->DCOrgY           = dc->DCOrgY;
 317 #endif
 318     newdc->CursPosX         = dc->CursPosX;
 319     newdc->CursPosY         = dc->CursPosY;
 320     newdc->ArcDirection     = dc->ArcDirection;
 321     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 322     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 323     newdc->xformVport2World = dc->xformVport2World;
 324     newdc->vport2WorldValid = dc->vport2WorldValid;
 325     newdc->wndOrgX          = dc->wndOrgX;
 326     newdc->wndOrgY          = dc->wndOrgY;
 327     newdc->wndExtX          = dc->wndExtX;
 328     newdc->wndExtY          = dc->wndExtY;
 329     newdc->vportOrgX        = dc->vportOrgX;
 330     newdc->vportOrgY        = dc->vportOrgY;
 331     newdc->vportExtX        = dc->vportExtX;
 332     newdc->vportExtY        = dc->vportExtY;
 333
 334     newdc->hSelf = (HDC)handle;
 335     newdc->saveLevel = 0;
 336
 337     PATH_InitGdiPath( &newdc->path );
 338
 339     newdc->pAbortProc = NULL;
 340     newdc->hookThunk  = NULL;
 341     newdc->hookProc   = 0;
 342
 343     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 344
 345     newdc->hGCClipRgn = newdc->hVisRgn = 0;
 346     if (dc->hClipRgn)
 347     {
 348         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 349         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 350     }
 351     else
 352         newdc->hClipRgn = 0;
 353
 354     if(dc->gdiFont) {
 355         newdc->gdiFont = dc->gdiFont;
 356     } else
 357         newdc->gdiFont = 0;
 358
 359     GDI_ReleaseObj( handle );
 360     GDI_ReleaseObj( hdc );
 361     return handle;
 362 }
 363
 364
 365 /***********************************************************************
 366  *           SetDCState    (GDI.180)
 367  */
 368 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 369 {
 370     DC *dc, *dcs;
 371
 372     if (!(dc = DC_GetDCUpdate( hdc ))) return;
 373     if (!(dcs = DC_GetDCPtr( hdcs )))
 374     {
 375       GDI_ReleaseObj( hdc );
 376       return;
 377     }
 378     if (!dcs->flags & DC_SAVED)
 379     {
 380       GDI_ReleaseObj( hdc );
 381       GDI_ReleaseObj( hdcs );
 382       return;
 383     }
 384     TRACE("%04x %04x\n", hdc, hdcs );
 385
 386     dc->flags            = dcs->flags & ~DC_SAVED;
 387     dc->hDevice          = dcs->hDevice;
 388     dc->totalExtent      = dcs->totalExtent;
 389     dc->ROPmode          = dcs->ROPmode;
 390     dc->polyFillMode     = dcs->polyFillMode;
 391     dc->stretchBltMode   = dcs->stretchBltMode;
 392     dc->relAbsMode       = dcs->relAbsMode;
 393     dc->backgroundMode   = dcs->backgroundMode;
 394     dc->backgroundColor  = dcs->backgroundColor;
 395     dc->textColor        = dcs->textColor;
 396     dc->brushOrgX        = dcs->brushOrgX;
 397     dc->brushOrgY        = dcs->brushOrgY;
 398     dc->textAlign        = dcs->textAlign;
 399     dc->charExtra        = dcs->charExtra;
 400     dc->breakTotalExtra  = dcs->breakTotalExtra;
 401     dc->breakCount       = dcs->breakCount;
 402     dc->breakExtra       = dcs->breakExtra;
 403     dc->breakRem         = dcs->breakRem;
 404     dc->MapMode          = dcs->MapMode;
 405     dc->GraphicsMode     = dcs->GraphicsMode;
 406 #if 0
 407     /* Apparently, the DC origin is not changed by [GS]etDCState */
 408     dc->DCOrgX           = dcs->DCOrgX;
 409     dc->DCOrgY           = dcs->DCOrgY;
 410 #endif
 411     dc->CursPosX         = dcs->CursPosX;
 412     dc->CursPosY         = dcs->CursPosY;
 413     dc->ArcDirection     = dcs->ArcDirection;
 414     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 415     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 416     dc->xformVport2World = dcs->xformVport2World;
 417     dc->vport2WorldValid = dcs->vport2WorldValid;
 418
 419     dc->wndOrgX          = dcs->wndOrgX;
 420     dc->wndOrgY          = dcs->wndOrgY;
 421     dc->wndExtX          = dcs->wndExtX;
 422     dc->wndExtY          = dcs->wndExtY;
 423     dc->vportOrgX        = dcs->vportOrgX;
 424     dc->vportOrgY        = dcs->vportOrgY;
 425     dc->vportExtX        = dcs->vportExtX;
 426     dc->vportExtY        = dcs->vportExtY;
 427
 428     if (!(dc->flags & DC_MEMORY)) dc->bitsPerPixel = dcs->bitsPerPixel;
 429
 430     if (dcs->hClipRgn)
 431     {
 432         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 433         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 434     }
 435     else
 436     {
 437         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 438         dc->hClipRgn = 0;
 439     }
 440     CLIPPING_UpdateGCRegion( dc );
 441
 442     SelectObject( hdc, dcs->hBitmap );
 443     SelectObject( hdc, dcs->hBrush );
 444     SelectObject( hdc, dcs->hFont );
 445     SelectObject( hdc, dcs->hPen );
 446     SetBkColor( hdc, dcs->backgroundColor);
 447     SetTextColor( hdc, dcs->textColor);
 448     GDISelectPalette16( hdc, dcs->hPalette, FALSE );
 449     GDI_ReleaseObj( hdcs );
 450     GDI_ReleaseObj( hdc );
 451 }
 452
 453
 454 /***********************************************************************
 455  *           SaveDC    (GDI.30)
 456  */
 457 INT16 WINAPI SaveDC16( HDC16 hdc )
 458 {
 459     return (INT16)SaveDC( hdc );
 460 }
 461
 462
 463 /***********************************************************************
 464  *           SaveDC    (GDI32.@)
 465  */
 466 INT WINAPI SaveDC( HDC hdc )
 467 {
 468     HDC hdcs;
 469     DC * dc, * dcs;
 470     INT ret;
 471
 472     dc = DC_GetDCPtr( hdc );
 473     if (!dc) return 0;
 474
 475     if(dc->funcs->pSaveDC)
 476     {
 477         ret = dc->funcs->pSaveDC( dc->physDev );
 478         GDI_ReleaseObj( hdc );
 479         return ret;
 480     }
 481
 482     if (!(hdcs = GetDCState16( hdc )))
 483     {
 484       GDI_ReleaseObj( hdc );
 485       return 0;
 486     }
 487     dcs = DC_GetDCPtr( hdcs );
 488
 489     /* Copy path. The reason why path saving / restoring is in SaveDC/
 490      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 491      * functions are only in Win16 (which doesn't have paths) and that
 492      * SetDCState doesn't allow us to signal an error (which can happen
 493      * when copying paths).
 494      */
 495     if (!PATH_AssignGdiPath( &dcs->path, &dc->path ))
 496     {
 497         GDI_ReleaseObj( hdc );
 498         GDI_ReleaseObj( hdcs );
 499         DeleteDC( hdcs );
 500         return 0;
 501     }
 502
 503     dcs->header.hNext = dc->header.hNext;
 504     dc->header.hNext = hdcs;
 505     TRACE("(%04x): returning %d\n", hdc, dc->saveLevel+1 );
 506     ret = ++dc->saveLevel;
 507     GDI_ReleaseObj( hdcs );
 508     GDI_ReleaseObj( hdc );
 509     return ret;
 510 }
 511
 512
 513 /***********************************************************************
 514  *           RestoreDC    (GDI.39)
 515  */
 516 BOOL16 WINAPI RestoreDC16( HDC16 hdc, INT16 level )
 517 {
 518     return RestoreDC( hdc, level );
 519 }
 520
 521
 522 /***********************************************************************
 523  *           RestoreDC    (GDI32.@)
 524  */
 525 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 526 {
 527     DC * dc, * dcs;
 528     BOOL success;
 529
 530     TRACE("%04x %d\n", hdc, level );
 531     dc = DC_GetDCUpdate( hdc );
 532     if(!dc) return FALSE;
 533     if(dc->funcs->pRestoreDC)
 534     {
 535         success = dc->funcs->pRestoreDC( dc->physDev, level );
 536         GDI_ReleaseObj( hdc );
 537         return success;
 538     }
 539
 540     if (level == -1) level = dc->saveLevel;
 541     if ((level < 1)
 542             /* This pair of checks disagrees with MSDN "Platform SDK:
 543                Windows GDI" July 2000 which says all negative values
 544                for level will be interpreted as an instance relative
 545                to the current state.  Restricting it to just -1 does
 546                not satisfy this */
 547         || (level > dc->saveLevel))
 548     {
 549         GDI_ReleaseObj( hdc );
 550         return FALSE;
 551     }
 552
 553     success=TRUE;
 554     while (dc->saveLevel >= level)
 555     {
 556         HDC16 hdcs = dc->header.hNext;
 557         if (!(dcs = DC_GetDCPtr( hdcs )))
 558         {
 559           GDI_ReleaseObj( hdc );
 560           return FALSE;
 561         }
 562         dc->header.hNext = dcs->header.hNext;
 563         if (--dc->saveLevel < level)
 564         {
 565             SetDCState16( hdc, hdcs );
 566             if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
 567                 /* FIXME: This might not be quite right, since we're
 568                  * returning FALSE but still destroying the saved DC state */
 569                 success=FALSE;
 570         }
 571         GDI_ReleaseObj( hdcs );
 572         GDI_ReleaseObj( hdc );
 573         DeleteDC( hdcs );
 574         if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 575     }
 576     GDI_ReleaseObj( hdc );
 577     return success;
 578 }
 579
 580
 581 /***********************************************************************
 582  *           CreateDC    (GDI.53)
 583  */
 584 HDC16 WINAPI CreateDC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 585                          const DEVMODEA *initData )
 586 {
 587     return CreateDCA( driver, device, output, initData );
 588 }
 589
 590 /***********************************************************************
 591  *           CreateDCA    (GDI32.@)
 592  */
 593 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 594                           const DEVMODEA *initData )
 595 {
 596     HDC hdc;
 597     DC * dc;
 598     const DC_FUNCTIONS *funcs;
 599     char buf[300];
 600
 601     GDI_CheckNotLock();
 602
 603     if (!device || !DRIVER_GetDriverName( device, buf, sizeof(buf) ))
 604         strcpy(buf, driver);
 605
 606     if (!(funcs = DRIVER_load_driver( buf )))
 607     {
 608         ERR( "no driver found for %s\n", buf );
 609         return 0;
 610     }
 611     if (!(dc = DC_AllocDC( funcs )))
 612     {
 613         DRIVER_release_driver( funcs );
 614         return 0;
 615     }
 616
 617     dc->flags = 0;
 618
 619     TRACE("(driver=%s, device=%s, output=%s): returning %04x\n",
 620                debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
 621
 622     if (dc->funcs->pCreateDC &&
 623         !dc->funcs->pCreateDC( dc, buf, device, output, initData ))
 624     {
 625         WARN("creation aborted by device\n" );
 626         GDI_FreeObject( dc->hSelf, dc );
 627         DRIVER_release_driver( funcs );
 628         return 0;
 629     }
 630
 631     dc->totalExtent.left   = 0;
 632     dc->totalExtent.top    = 0;
 633     dc->totalExtent.right  = GetDeviceCaps( dc->hSelf, HORZRES );
 634     dc->totalExtent.bottom = GetDeviceCaps( dc->hSelf, VERTRES );
 635     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 636
 637     DC_InitDC( dc );
 638     hdc = dc->hSelf;
 639     GDI_ReleaseObj( hdc );
 640     return hdc;
 641 }
 642
 643
 644 /***********************************************************************
 645  *           CreateDCW    (GDI32.@)
 646  */
 647 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 648                           const DEVMODEW *initData )
 649 {
 650     LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
 651     LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
 652     LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
 653     HDC res = CreateDCA( driverA, deviceA, outputA,
 654                             (const DEVMODEA *)initData /*FIXME*/ );
 655     HeapFree( GetProcessHeap(), 0, driverA );
 656     HeapFree( GetProcessHeap(), 0, deviceA );
 657     HeapFree( GetProcessHeap(), 0, outputA );
 658     return res;
 659 }
 660
 661
 662 /***********************************************************************
 663  *           CreateIC    (GDI.153)
 664  */
 665 HDC16 WINAPI CreateIC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 666                          const DEVMODEA* initData )
 667 {
 668       /* Nothing special yet for ICs */
 669     return CreateDC16( driver, device, output, initData );
 670 }
 671
 672
 673 /***********************************************************************
 674  *           CreateICA    (GDI32.@)
 675  */
 676 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 677                           const DEVMODEA* initData )
 678 {
 679       /* Nothing special yet for ICs */
 680     return CreateDCA( driver, device, output, initData );
 681 }
 682
 683
 684 /***********************************************************************
 685  *           CreateICW    (GDI32.@)
 686  */
 687 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 688                           const DEVMODEW* initData )
 689 {
 690       /* Nothing special yet for ICs */
 691     return CreateDCW( driver, device, output, initData );
 692 }
 693
 694
 695 /***********************************************************************
 696  *           CreateCompatibleDC    (GDI.52)
 697  */
 698 HDC16 WINAPI CreateCompatibleDC16( HDC16 hdc )
 699 {
 700     return (HDC16)CreateCompatibleDC( hdc );
 701 }
 702
 703
 704 /***********************************************************************
 705  *           CreateCompatibleDC   (GDI32.@)
 706  */
 707 HDC WINAPI CreateCompatibleDC( HDC hdc )
 708 {
 709     DC *dc, *origDC;
 710     const DC_FUNCTIONS *funcs;
 711
 712     GDI_CheckNotLock();
 713
 714     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC )))
 715     {
 716         funcs = origDC->funcs;
 717         GDI_ReleaseObj( hdc ); /* can't hold the lock while loading the driver */
 718         funcs = DRIVER_get_driver( funcs );
 719     }
 720     else funcs = DRIVER_load_driver( "DISPLAY" );
 721
 722     if (!funcs) return 0;
 723
 724     if (!(dc = DC_AllocDC( funcs )))
 725     {
 726         DRIVER_release_driver( funcs );
 727         return 0;
 728     }
 729
 730     TRACE("(%04x): returning %04x\n",
 731                hdc, dc->hSelf );
 732
 733     dc->flags        = DC_MEMORY;
 734     dc->bitsPerPixel = 1;
 735     dc->hBitmap      = GetStockObject( DEFAULT_BITMAP );
 736
 737     /* Copy the driver-specific physical device info into
 738      * the new DC. The driver may use this read-only info
 739      * while creating the compatible DC below. */
 740     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC ))) dc->physDev = origDC->physDev;
 741
 742     if (dc->funcs->pCreateDC &&
 743         !dc->funcs->pCreateDC( dc, NULL, NULL, NULL, NULL ))
 744     {
 745         WARN("creation aborted by device\n");
 746         GDI_FreeObject( dc->hSelf, dc );
 747         if (origDC) GDI_ReleaseObj( hdc );
 748         DRIVER_release_driver( funcs );
 749         return 0;
 750     }
 751
 752     dc->totalExtent.left   = 0;
 753     dc->totalExtent.top    = 0;
 754     dc->totalExtent.right  = 1;  /* default bitmap is 1x1 */
 755     dc->totalExtent.bottom = 1;
 756     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 757
 758     DC_InitDC( dc );
 759     GDI_ReleaseObj( dc->hSelf );
 760     if (origDC) GDI_ReleaseObj( hdc );
 761     return dc->hSelf;
 762 }
 763
 764
 765 /***********************************************************************
 766  *           DeleteDC    (GDI.68)
 767  */
 768 BOOL16 WINAPI DeleteDC16( HDC16 hdc )
 769 {
 770     return DeleteDC( hdc );
 771 }
 772
 773
 774 /***********************************************************************
 775  *           DeleteDC    (GDI32.@)
 776  */
 777 BOOL WINAPI DeleteDC( HDC hdc )
 778 {
 779     const DC_FUNCTIONS *funcs = NULL;
 780     DC * dc;
 781
 782     TRACE("%04x\n", hdc );
 783
 784     GDI_CheckNotLock();
 785
 786     if (!(dc = GDI_GetObjPtr( hdc, DC_MAGIC ))) return FALSE;
 787
 788     /* Call hook procedure to check whether is it OK to delete this DC */
 789     if (dc->hookThunk && !(dc->flags & (DC_SAVED | DC_MEMORY)))
 790     {
 791         DCHOOKPROC proc = dc->hookThunk;
 792         if (proc)
 793         {
 794             DWORD data = dc->dwHookData;
 795             GDI_ReleaseObj( hdc );
 796             if (!proc( hdc, DCHC_DELETEDC, data, 0 )) return FALSE;
 797             if (!(dc = DC_GetDCPtr( hdc ))) return TRUE;  /* deleted by the hook */
 798         }
 799     }
 800
 801     while (dc->saveLevel)
 802     {
 803         DC * dcs;
 804         HDC16 hdcs = dc->header.hNext;
 805         if (!(dcs = DC_GetDCPtr( hdcs ))) break;
 806         dc->header.hNext = dcs->header.hNext;
 807         dc->saveLevel--;
 808         if (dcs->hClipRgn) DeleteObject( dcs->hClipRgn );
 809         if (dcs->hVisRgn) DeleteObject( dcs->hVisRgn );
 810         if (dcs->hGCClipRgn) DeleteObject( dcs->hGCClipRgn );
 811         PATH_DestroyGdiPath(&dcs->path);
 812         GDI_FreeObject( hdcs, dcs );
 813     }
 814
 815     if (!(dc->flags & DC_SAVED))
 816     {
 817         SelectObject( hdc, GetStockObject(BLACK_PEN) );
 818         SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 819         SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 820         SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 821         funcs = dc->funcs;
 822         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
 823     }
 824
 825     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 826     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 827     if (dc->hGCClipRgn) DeleteObject( dc->hGCClipRgn );
 828     PATH_DestroyGdiPath(&dc->path);
 829
 830     GDI_FreeObject( hdc, dc );
 831     if (funcs) DRIVER_release_driver( funcs );  /* do that after releasing the GDI lock */
 832     return TRUE;
 833 }
 834
 835
 836 /***********************************************************************
 837  *           ResetDC    (GDI.376)
 838  */
 839 HDC16 WINAPI ResetDC16( HDC16 hdc, const DEVMODEA *devmode )
 840 {
 841     return ResetDCA(hdc, devmode);
 842 }
 843
 844
 845 /***********************************************************************
 846  *           ResetDCA    (GDI32.@)
 847  */
 848 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 849 {
 850     DC *dc;
 851     HDC ret = hdc;
 852
 853     if ((dc = DC_GetDCPtr( hdc )))
 854     {
 855         if (dc->funcs->pResetDC) ret = dc->funcs->pResetDC( dc->physDev, devmode );
 856         GDI_ReleaseObj( hdc );
 857     }
 858     return ret;
 859 }
 860
 861
 862 /***********************************************************************
 863  *           ResetDCW    (GDI32.@)
 864  */
 865 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 866 {
 867     return ResetDCA(hdc, (const DEVMODEA*)devmode); /* FIXME */
 868 }
 869
 870
 871 /***********************************************************************
 872  *           GetDeviceCaps    (GDI.80)
 873  */
 874 INT16 WINAPI GetDeviceCaps16( HDC16 hdc, INT16 cap )
 875 {
 876     INT16 ret = GetDeviceCaps( hdc, cap );
 877     /* some apps don't expect -1 and think it's a B&W screen */
 878     if ((cap == NUMCOLORS) && (ret == -1)) ret = 2048;
 879     return ret;
 880 }
 881
 882
 883 /***********************************************************************
 884  *           GetDeviceCaps    (GDI32.@)
 885  */
 886 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 887 {
 888     DC *dc;
 889     INT ret = 0;
 890
 891     if ((dc = DC_GetDCPtr( hdc )))
 892     {
 893         if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
 894         GDI_ReleaseObj( hdc );
 895     }
 896     return ret;
 897 }
 898
 899
 900 /***********************************************************************
 901  *           SetBkColor    (GDI.1)
 902  */
 903 COLORREF WINAPI SetBkColor16( HDC16 hdc, COLORREF color )
 904 {
 905     return SetBkColor( hdc, color );
 906 }
 907
 908
 909 /***********************************************************************
 910  *           SetBkColor    (GDI32.@)
 911  */
 912 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 913 {
 914     COLORREF oldColor;
 915     DC * dc = DC_GetDCPtr( hdc );
 916
 917     if (!dc) return CLR_INVALID;
 918     oldColor = dc->backgroundColor;
 919     if (dc->funcs->pSetBkColor)
 920     {
 921         color = dc->funcs->pSetBkColor(dc->physDev, color);
 922         if (color == CLR_INVALID)  /* don't change it */
 923         {
 924             color = oldColor;
 925             oldColor = CLR_INVALID;
 926         }
 927     }
 928     dc->backgroundColor = color;
 929     GDI_ReleaseObj( hdc );
 930     return oldColor;
 931 }
 932
 933
 934 /***********************************************************************
 935  *           SetTextColor    (GDI.9)
 936  */
 937 COLORREF WINAPI SetTextColor16( HDC16 hdc, COLORREF color )
 938 {
 939     return SetTextColor( hdc, color );
 940 }
 941
 942
 943 /***********************************************************************
 944  *           SetTextColor    (GDI32.@)
 945  */
 946 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 947 {
 948     COLORREF oldColor;
 949     DC * dc = DC_GetDCPtr( hdc );
 950
 951     if (!dc) return CLR_INVALID;
 952     oldColor = dc->textColor;
 953     if (dc->funcs->pSetTextColor)
 954     {
 955         color = dc->funcs->pSetTextColor(dc->physDev, color);
 956         if (color == CLR_INVALID)  /* don't change it */
 957         {
 958             color = oldColor;
 959             oldColor = CLR_INVALID;
 960         }
 961     }
 962     dc->textColor = color;
 963     GDI_ReleaseObj( hdc );
 964     return oldColor;
 965 }
 966
 967 /***********************************************************************
 968  *           SetTextAlign    (GDI.346)
 969  */
 970 UINT16 WINAPI SetTextAlign16( HDC16 hdc, UINT16 align )
 971 {
 972     return SetTextAlign( hdc, align );
 973 }
 974
 975
 976 /***********************************************************************
 977  *           SetTextAlign    (GDI32.@)
 978  */
 979 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 980 {
 981     UINT prevAlign;
 982     DC *dc = DC_GetDCPtr( hdc );
 983     if (!dc) return 0x0;
 984     if (dc->funcs->pSetTextAlign)
 985         prevAlign = dc->funcs->pSetTextAlign(dc->physDev, align);
 986     else {
 987         prevAlign = dc->textAlign;
 988         dc->textAlign = align;
 989     }
 990     GDI_ReleaseObj( hdc );
 991     return prevAlign;
 992 }
 993
 994 /***********************************************************************
 995  *           GetDCOrgEx  (GDI32.@)
 996  */
 997 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 998 {
 999     DC * dc;
1000
1001     if (!lpp) return FALSE;
1002     if (!(dc = DC_GetDCPtr( hDC ))) return FALSE;
1003
1004     lpp->x = lpp->y = 0;
1005     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
1006     lpp->x += dc->DCOrgX;
1007     lpp->y += dc->DCOrgY;
1008     GDI_ReleaseObj( hDC );
1009     return TRUE;
1010 }
1011
1012
1013 /***********************************************************************
1014  *           GetDCOrg    (GDI.79)
1015  */
1016 DWORD WINAPI GetDCOrg16( HDC16 hdc )
1017 {
1018     POINT       pt;
1019     if( GetDCOrgEx( hdc, &pt) )
1020         return MAKELONG( (WORD)pt.x, (WORD)pt.y );
1021     return 0;
1022 }
1023
1024
1025 /***********************************************************************
1026  *           SetDCOrg    (GDI.117)
1027  */
1028 DWORD WINAPI SetDCOrg16( HDC16 hdc, INT16 x, INT16 y )
1029 {
1030     DWORD prevOrg;
1031     DC *dc = DC_GetDCPtr( hdc );
1032     if (!dc) return 0;
1033     prevOrg = dc->DCOrgX | (dc->DCOrgY << 16);
1034     dc->DCOrgX = x;
1035     dc->DCOrgY = y;
1036     GDI_ReleaseObj( hdc );
1037     return prevOrg;
1038 }
1039
1040
1041 /***********************************************************************
1042  *           SetGraphicsMode    (GDI32.@)
1043  */
1044 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
1045 {
1046     INT ret = 0;
1047     DC *dc = DC_GetDCPtr( hdc );
1048
1049     /* One would think that setting the graphics mode to GM_COMPATIBLE
1050      * would also reset the world transformation matrix to the unity
1051      * matrix. However, in Windows, this is not the case. This doesn't
1052      * make a lot of sense to me, but that's the way it is.
1053      */
1054     if (!dc) return 0;
1055     if ((mode > 0) || (mode <= GM_LAST))
1056     {
1057         ret = dc->GraphicsMode;
1058         dc->GraphicsMode = mode;
1059     }
1060     GDI_ReleaseObj( hdc );
1061     return ret;
1062 }
1063
1064
1065 /***********************************************************************
1066  *           SetArcDirection    (GDI.525)
1067  */
1068 INT16 WINAPI SetArcDirection16( HDC16 hdc, INT16 nDirection )
1069 {
1070     return SetArcDirection( (HDC)hdc, (INT)nDirection );
1071 }
1072
1073
1074 /***********************************************************************
1075  *           SetArcDirection    (GDI32.@)
1076  */
1077 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
1078 {
1079     DC * dc;
1080     INT nOldDirection = 0;
1081
1082     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1083     {
1084         SetLastError(ERROR_INVALID_PARAMETER);
1085         return 0;
1086     }
1087
1088     if ((dc = DC_GetDCPtr( hdc )))
1089     {
1090         nOldDirection = dc->ArcDirection;
1091         dc->ArcDirection = nDirection;
1092         GDI_ReleaseObj( hdc );
1093     }
1094     return nOldDirection;
1095 }
1096
1097
1098 /***********************************************************************
1099  *           GetWorldTransform    (GDI32.@)
1100  */
1101 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1102 {
1103     DC * dc;
1104     if (!xform) return FALSE;
1105     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
1106     *xform = dc->xformWorld2Wnd;
1107     GDI_ReleaseObj( hdc );
1108     return TRUE;
1109 }
1110
1111
1112 /***********************************************************************
1113  *           SetWorldTransform    (GDI32.@)
1114  */
1115 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1116 {
1117     BOOL ret = FALSE;
1118     DC *dc = DC_GetDCPtr( hdc );
1119
1120     if (!dc) return FALSE;
1121     if (!xform) goto done;
1122
1123     /* Check that graphics mode is GM_ADVANCED */
1124     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1125
1126     dc->xformWorld2Wnd = *xform;
1127     DC_UpdateXforms( dc );
1128     ret = TRUE;
1129  done:
1130     GDI_ReleaseObj( hdc );
1131     return ret;
1132 }
1133
1134
1135 /****************************************************************************
1136  * ModifyWorldTransform [GDI32.@]
1137  * Modifies the world transformation for a device context.
1138  *
1139  * PARAMS
1140  *    hdc   [I] Handle to device context
1141  *    xform [I] XFORM structure that will be used to modify the world
1142  *              transformation
1143  *    iMode [I] Specifies in what way to modify the world transformation
1144  *              Possible values:
1145  *              MWT_IDENTITY
1146  *                 Resets the world transformation to the identity matrix.
1147  *                 The parameter xform is ignored.
1148  *              MWT_LEFTMULTIPLY
1149  *                 Multiplies xform into the world transformation matrix from
1150  *                 the left.
1151  *              MWT_RIGHTMULTIPLY
1152  *                 Multiplies xform into the world transformation matrix from
1153  *                 the right.
1154  *
1155  * RETURNS STD
1156  */
1157 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1158     DWORD iMode )
1159 {
1160     BOOL ret = FALSE;
1161     DC *dc = DC_GetDCPtr( hdc );
1162
1163     /* Check for illegal parameters */
1164     if (!dc) return FALSE;
1165     if (!xform) goto done;
1166
1167     /* Check that graphics mode is GM_ADVANCED */
1168     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1169
1170     switch (iMode)
1171     {
1172         case MWT_IDENTITY:
1173             dc->xformWorld2Wnd.eM11 = 1.0f;
1174             dc->xformWorld2Wnd.eM12 = 0.0f;
1175             dc->xformWorld2Wnd.eM21 = 0.0f;
1176             dc->xformWorld2Wnd.eM22 = 1.0f;
1177             dc->xformWorld2Wnd.eDx  = 0.0f;
1178             dc->xformWorld2Wnd.eDy  = 0.0f;
1179             break;
1180         case MWT_LEFTMULTIPLY:
1181             CombineTransform( &dc->xformWorld2Wnd, xform,
1182                 &dc->xformWorld2Wnd );
1183             break;
1184         case MWT_RIGHTMULTIPLY:
1185             CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1186                 xform );
1187             break;
1188         default:
1189             goto done;
1190     }
1191
1192     DC_UpdateXforms( dc );
1193     ret = TRUE;
1194  done:
1195     GDI_ReleaseObj( hdc );
1196     return ret;
1197 }
1198
1199
1200 /****************************************************************************
1201  * CombineTransform [GDI32.@]
1202  * Combines two transformation matrices.
1203  *
1204  * PARAMS
1205  *    xformResult [O] Stores the result of combining the two matrices
1206  *    xform1      [I] Specifies the first matrix to apply
1207  *    xform2      [I] Specifies the second matrix to apply
1208  *
1209  * REMARKS
1210  *    The same matrix can be passed in for more than one of the parameters.
1211  *
1212  * RETURNS STD
1213  */
1214 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1215     const XFORM *xform2 )
1216 {
1217     XFORM xformTemp;
1218
1219     /* Check for illegal parameters */
1220     if (!xformResult || !xform1 || !xform2)
1221         return FALSE;
1222
1223     /* Create the result in a temporary XFORM, since xformResult may be
1224      * equal to xform1 or xform2 */
1225     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1226                      xform1->eM12 * xform2->eM21;
1227     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1228                      xform1->eM12 * xform2->eM22;
1229     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1230                      xform1->eM22 * xform2->eM21;
1231     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1232                      xform1->eM22 * xform2->eM22;
1233     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1234                      xform1->eDy  * xform2->eM21 +
1235                      xform2->eDx;
1236     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1237                      xform1->eDy  * xform2->eM22 +
1238                      xform2->eDy;
1239
1240     /* Copy the result to xformResult */
1241     *xformResult = xformTemp;
1242
1243     return TRUE;
1244 }
1245
1246
1247 /***********************************************************************
1248  *           SetDCHook   (GDI32.@)
1249  *
1250  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1251  */
1252 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD dwHookData )
1253 {
1254     DC *dc = DC_GetDCPtr( hdc );
1255
1256     if (!dc) return FALSE;
1257     dc->dwHookData = dwHookData;
1258     dc->hookThunk = hookProc;
1259     GDI_ReleaseObj( hdc );
1260     return TRUE;
1261 }
1262
1263
1264 /* relay function to call the 16-bit DC hook proc */
1265 static BOOL16 WINAPI call_dc_hook16( HDC16 hdc, WORD code, DWORD data, LPARAM lParam )
1266 {
1267     FARPROC16 proc = NULL;
1268     DC *dc = DC_GetDCPtr( hdc );
1269     if (!dc) return FALSE;
1270     proc = dc->hookProc;
1271     GDI_ReleaseObj( hdc );
1272     if (!proc) return FALSE;
1273     return GDI_CallTo16_word_wwll( proc, hdc, code, data, lParam );
1274 }
1275
1276 /***********************************************************************
1277  *           SetDCHook   (GDI.190)
1278  */
1279 BOOL16 WINAPI SetDCHook16( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
1280 {
1281     DC *dc = DC_GetDCPtr( hdc );
1282     if (!dc) return FALSE;
1283
1284     dc->hookProc = hookProc;
1285     GDI_ReleaseObj( hdc );
1286     return SetDCHook( hdc, call_dc_hook16, dwHookData );
1287 }
1288
1289
1290 /***********************************************************************
1291  *           GetDCHook   (GDI.191)
1292  */
1293 DWORD WINAPI GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
1294 {
1295     DC *dc = DC_GetDCPtr( hdc );
1296     if (!dc) return 0;
1297     *phookProc = dc->hookProc;
1298     GDI_ReleaseObj( hdc );
1299     return dc->dwHookData;
1300 }
1301
1302
1303 /***********************************************************************
1304  *           SetHookFlags       (GDI.192)
1305  */
1306 WORD WINAPI SetHookFlags16(HDC16 hDC, WORD flags)
1307 {
1308     DC *dc = DC_GetDCPtr( hDC );
1309
1310     if( dc )
1311     {
1312         WORD wRet = dc->flags & DC_DIRTY;
1313
1314         /* "Undocumented Windows" info is slightly confusing.
1315          */
1316
1317         TRACE("hDC %04x, flags %04x\n",hDC,flags);
1318
1319         if( flags & DCHF_INVALIDATEVISRGN )
1320             dc->flags |= DC_DIRTY;
1321         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1322             dc->flags &= ~DC_DIRTY;
1323         GDI_ReleaseObj( hDC );
1324         return wRet;
1325     }
1326     return 0;
1327 }
1328
1329 /***********************************************************************
1330  *           SetICMMode    (GDI32.@)
1331  */
1332 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1333 {
1334 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1335     if (iEnableICM == ICM_OFF) return ICM_OFF;
1336     if (iEnableICM == ICM_ON) return 0;
1337     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1338     return 0;
1339 }
1340
1341 /***********************************************************************
1342  *           GetDeviceGammaRamp    (GDI32.@)
1343  */
1344 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1345 {
1346     BOOL ret = FALSE;
1347     DC *dc = DC_GetDCPtr( hDC );
1348
1349     if( dc )
1350     {
1351         if (dc->funcs->pGetDeviceGammaRamp)
1352             ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1353         GDI_ReleaseObj( hDC );
1354     }
1355     return ret;
1356 }
1357
1358 /***********************************************************************
1359  *           SetDeviceGammaRamp    (GDI32.@)
1360  */
1361 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1362 {
1363     BOOL ret = FALSE;
1364     DC *dc = DC_GetDCPtr( hDC );
1365
1366     if( dc )
1367     {
1368         if (dc->funcs->pSetDeviceGammaRamp)
1369             ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1370         GDI_ReleaseObj( hDC );
1371     }
1372     return ret;
1373 }
1374
1375 /***********************************************************************
1376  *           GetColorSpace    (GDI32.@)
1377  */
1378 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1379 {
1380 /*FIXME    Need to to whatever GetColorSpace actually does */
1381     return 0;
1382 }
1383
1384 /***********************************************************************
1385  *           CreateColorSpaceA    (GDI32.@)
1386  */
1387 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1388 {
1389   FIXME( "stub\n" );
1390   return 0;
1391 }
1392
1393 /***********************************************************************
1394  *           CreateColorSpaceW    (GDI32.@)
1395  */
1396 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1397 {
1398   FIXME( "stub\n" );
1399   return 0;
1400 }
1401
1402 /***********************************************************************
1403  *           DeleteColorSpace     (GDI32.@)
1404  */
1405 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1406 {
1407   FIXME( "stub\n" );
1408
1409   return TRUE;
1410 }
1411
1412 /***********************************************************************
1413  *           SetColorSpace     (GDI32.@)
1414  */
1415 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1416 {
1417   FIXME( "stub\n" );
1418
1419   return hColorSpace;
1420 }
1421
1422 /***********************************************************************
1423  *           GetBoundsRect    (GDI.194)
1424  */
1425 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1426 {
1427     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1428 }
1429
1430 /***********************************************************************
1431  *           GetBoundsRect    (GDI32.@)
1432  */
1433 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1434 {
1435     FIXME("(): stub\n");
1436     return DCB_RESET;   /* bounding rectangle always empty */
1437 }
1438
1439 /***********************************************************************
1440  *           SetBoundsRect    (GDI.193)
1441  */
1442 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1443 {
1444     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1445         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1446
1447     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1448 }
1449
1450 /***********************************************************************
1451  *           SetBoundsRect    (GDI32.@)
1452  */
1453 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1454 {
1455     FIXME("(): stub\n");
1456     return DCB_DISABLE;   /* bounding rectangle always empty */
1457 }
1458
1459
1460 /***********************************************************************
1461  *              GetRelAbs               (GDI32.@)
1462  */
1463 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1464 {
1465     INT ret = 0;
1466     DC *dc = DC_GetDCPtr( hdc );
1467     if (dc) ret = dc->relAbsMode;
1468     GDI_ReleaseObj( hdc );
1469     return ret;
1470 }
1471
1472 /***********************************************************************
1473  *           Death    (GDI.121)
1474  *
1475  * Disables GDI, switches back to text mode.
1476  * We don't have to do anything here,
1477  * just let console support handle everything
1478  */
1479 void WINAPI Death16(HDC16 hDC)
1480 {
1481     MESSAGE("Death(%04x) called. Application enters text mode...\n", hDC);
1482 }
1483
1484 /***********************************************************************
1485  *           Resurrection    (GDI.122)
1486  *
1487  * Restores GDI functionality
1488  */
1489 void WINAPI Resurrection16(HDC16 hDC,
1490                            WORD w1, WORD w2, WORD w3, WORD w4, WORD w5, WORD w6)
1491 {
1492     MESSAGE("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC, w1, w2, w3, w4, w5, w6);
1493 }
1494
1495 /***********************************************************************
1496  *           GetLayout    (GDI32.@)
1497  *
1498  * Gets left->right or right->left text layout flags of a dc.
1499  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1500  *
1501  */
1502 DWORD WINAPI GetLayout(HDC hdc)
1503 {
1504     FIXME("(%08x): stub\n", hdc);
1505     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1506     return 0;
1507 }
1508
1509 /***********************************************************************
1510  *           SetLayout    (GDI32.@)
1511  *
1512  * Sets left->right or right->left text layout flags of a dc.
1513  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1514  *
1515  */
1516 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1517 {
1518     FIXME("(%08x,%08lx): stub\n", hdc, layout);
1519     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1520     return 0;
1521 }