dlls/gdi32/enhmfdrv/graphics.c

   1 /*
   2  * Enhanced MetaFile driver graphics functions
   3  *
   4  * Copyright 1999 Huw D M Davies
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "wingdi.h"
  31 #include "enhmfdrv/enhmetafiledrv.h"
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(enhmetafile);
  35
  36 /**********************************************************************
  37  *           EMFDRV_MoveTo
  38  */
  39 BOOL EMFDRV_MoveTo(PHYSDEV dev, INT x, INT y)
  40 {
  41     EMRMOVETOEX emr;
  42
  43     emr.emr.iType = EMR_MOVETOEX;
  44     emr.emr.nSize = sizeof(emr);
  45     emr.ptl.x = x;
  46     emr.ptl.y = y;
  47
  48     return EMFDRV_WriteRecord( dev, &emr.emr );
  49 }
  50
  51 /***********************************************************************
  52  *           EMFDRV_LineTo
  53  */
  54 BOOL EMFDRV_LineTo( PHYSDEV dev, INT x, INT y )
  55 {
  56     POINT pt;
  57     EMRLINETO emr;
  58     RECTL bounds;
  59
  60     emr.emr.iType = EMR_LINETO;
  61     emr.emr.nSize = sizeof(emr);
  62     emr.ptl.x = x;
  63     emr.ptl.y = y;
  64
  65     if(!EMFDRV_WriteRecord( dev, &emr.emr ))
  66         return FALSE;
  67
  68     GetCurrentPositionEx( dev->hdc, &pt );
  69
  70     bounds.left   = min(x, pt.x);
  71     bounds.top    = min(y, pt.y);
  72     bounds.right  = max(x, pt.x);
  73     bounds.bottom = max(y, pt.y);
  74
  75     EMFDRV_UpdateBBox( dev, &bounds );
  76
  77     return TRUE;
  78 }
  79
  80
  81 /***********************************************************************
  82  *           EMFDRV_ArcChordPie
  83  */
  84 static BOOL
  85 EMFDRV_ArcChordPie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
  86                     INT xstart, INT ystart, INT xend, INT yend, DWORD iType )
  87 {
  88     INT temp, xCentre, yCentre, i;
  89     double angleStart, angleEnd;
  90     double xinterStart, yinterStart, xinterEnd, yinterEnd;
  91     EMRARC emr;
  92     RECTL bounds;
  93
  94     if(left == right || top == bottom) return FALSE;
  95
  96     if(left > right) {temp = left; left = right; right = temp;}
  97     if(top > bottom) {temp = top; top = bottom; bottom = temp;}
  98
  99     if(GetGraphicsMode(dev->hdc) == GM_COMPATIBLE) {
 100         right--;
 101         bottom--;
 102     }
 103
 104     emr.emr.iType     = iType;
 105     emr.emr.nSize     = sizeof(emr);
 106     emr.rclBox.left   = left;
 107     emr.rclBox.top    = top;
 108     emr.rclBox.right  = right;
 109     emr.rclBox.bottom = bottom;
 110     emr.ptlStart.x    = xstart;
 111     emr.ptlStart.y    = ystart;
 112     emr.ptlEnd.x      = xend;
 113     emr.ptlEnd.y      = yend;
 114
 115
 116     /* Now calculate the BBox */
 117     xCentre = (left + right + 1) / 2;
 118     yCentre = (top + bottom + 1) / 2;
 119
 120     xstart -= xCentre;
 121     ystart -= yCentre;
 122     xend   -= xCentre;
 123     yend   -= yCentre;
 124
 125     /* invert y co-ords to get angle anti-clockwise from x-axis */
 126     angleStart = atan2( -(double)ystart, (double)xstart);
 127     angleEnd   = atan2( -(double)yend, (double)xend);
 128
 129     /* These are the intercepts of the start/end lines with the arc */
 130
 131     xinterStart = (right - left + 1)/2 * cos(angleStart) + xCentre;
 132     yinterStart = -(bottom - top + 1)/2 * sin(angleStart) + yCentre;
 133     xinterEnd   = (right - left + 1)/2 * cos(angleEnd) + xCentre;
 134     yinterEnd   = -(bottom - top + 1)/2 * sin(angleEnd) + yCentre;
 135
 136     if(angleStart < 0) angleStart += 2 * M_PI;
 137     if(angleEnd < 0) angleEnd += 2 * M_PI;
 138     if(angleEnd < angleStart) angleEnd += 2 * M_PI;
 139
 140     bounds.left   = min(xinterStart, xinterEnd);
 141     bounds.top    = min(yinterStart, yinterEnd);
 142     bounds.right  = max(xinterStart, xinterEnd);
 143     bounds.bottom = max(yinterStart, yinterEnd);
 144
 145     for(i = 0; i <= 8; i++) {
 146         if(i * M_PI / 2 < angleStart) /* loop until we're past start */
 147             continue;
 148         if(i * M_PI / 2 > angleEnd)   /* if we're past end we're finished */
 149             break;
 150
 151         /* the arc touches the rectangle at the start of quadrant i, so adjust
 152            BBox to reflect this. */
 153
 154         switch(i % 4) {
 155         case 0:
 156             bounds.right = right;
 157             break;
 158         case 1:
 159             bounds.top = top;
 160             break;
 161         case 2:
 162             bounds.left = left;
 163             break;
 164         case 3:
 165             bounds.bottom = bottom;
 166             break;
 167         }
 168     }
 169
 170     /* If we're drawing a pie then make sure we include the centre */
 171     if(iType == EMR_PIE) {
 172         if(bounds.left > xCentre) bounds.left = xCentre;
 173         else if(bounds.right < xCentre) bounds.right = xCentre;
 174         if(bounds.top > yCentre) bounds.top = yCentre;
 175         else if(bounds.bottom < yCentre) bounds.right = yCentre;
 176     }
 177     if(!EMFDRV_WriteRecord( dev, &emr.emr ))
 178         return FALSE;
 179     EMFDRV_UpdateBBox( dev, &bounds );
 180     return TRUE;
 181 }
 182
 183
 184 /***********************************************************************
 185  *           EMFDRV_Arc
 186  */
 187 BOOL EMFDRV_Arc( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 188                  INT xstart, INT ystart, INT xend, INT yend )
 189 {
 190     return EMFDRV_ArcChordPie( dev, left, top, right, bottom, xstart, ystart,
 191                                xend, yend, EMR_ARC );
 192 }
 193
 194 /***********************************************************************
 195  *           EMFDRV_Pie
 196  */
 197 BOOL EMFDRV_Pie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 198                  INT xstart, INT ystart, INT xend, INT yend )
 199 {
 200     return EMFDRV_ArcChordPie( dev, left, top, right, bottom, xstart, ystart,
 201                                xend, yend, EMR_PIE );
 202 }
 203
 204
 205 /***********************************************************************
 206  *           EMFDRV_Chord
 207  */
 208 BOOL EMFDRV_Chord( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 209                    INT xstart, INT ystart, INT xend, INT yend )
 210 {
 211     return EMFDRV_ArcChordPie( dev, left, top, right, bottom, xstart, ystart,
 212                                xend, yend, EMR_CHORD );
 213 }
 214
 215 /***********************************************************************
 216  *           EMFDRV_Ellipse
 217  */
 218 BOOL EMFDRV_Ellipse( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 219 {
 220     EMRELLIPSE emr;
 221     INT temp;
 222
 223     TRACE("%d,%d - %d,%d\n", left, top, right, bottom);
 224
 225     if(left == right || top == bottom) return FALSE;
 226
 227     if(left > right) {temp = left; left = right; right = temp;}
 228     if(top > bottom) {temp = top; top = bottom; bottom = temp;}
 229
 230     if(GetGraphicsMode( dev->hdc ) == GM_COMPATIBLE) {
 231         right--;
 232         bottom--;
 233     }
 234
 235     emr.emr.iType     = EMR_ELLIPSE;
 236     emr.emr.nSize     = sizeof(emr);
 237     emr.rclBox.left   = left;
 238     emr.rclBox.top    = top;
 239     emr.rclBox.right  = right;
 240     emr.rclBox.bottom = bottom;
 241
 242     EMFDRV_UpdateBBox( dev, &emr.rclBox );
 243     return EMFDRV_WriteRecord( dev, &emr.emr );
 244 }
 245
 246 /***********************************************************************
 247  *           EMFDRV_Rectangle
 248  */
 249 BOOL EMFDRV_Rectangle(PHYSDEV dev, INT left, INT top, INT right, INT bottom)
 250 {
 251     EMRRECTANGLE emr;
 252     INT temp;
 253
 254     TRACE("%d,%d - %d,%d\n", left, top, right, bottom);
 255
 256     if(left == right || top == bottom) return FALSE;
 257
 258     if(left > right) {temp = left; left = right; right = temp;}
 259     if(top > bottom) {temp = top; top = bottom; bottom = temp;}
 260
 261     if(GetGraphicsMode( dev->hdc ) == GM_COMPATIBLE) {
 262         right--;
 263         bottom--;
 264     }
 265
 266     emr.emr.iType     = EMR_RECTANGLE;
 267     emr.emr.nSize     = sizeof(emr);
 268     emr.rclBox.left   = left;
 269     emr.rclBox.top    = top;
 270     emr.rclBox.right  = right;
 271     emr.rclBox.bottom = bottom;
 272
 273     EMFDRV_UpdateBBox( dev, &emr.rclBox );
 274     return EMFDRV_WriteRecord( dev, &emr.emr );
 275 }
 276
 277 /***********************************************************************
 278  *           EMFDRV_RoundRect
 279  */
 280 BOOL EMFDRV_RoundRect( PHYSDEV dev, INT left, INT top, INT right,
 281                   INT bottom, INT ell_width, INT ell_height )
 282 {
 283     EMRROUNDRECT emr;
 284     INT temp;
 285
 286     if(left == right || top == bottom) return FALSE;
 287
 288     if(left > right) {temp = left; left = right; right = temp;}
 289     if(top > bottom) {temp = top; top = bottom; bottom = temp;}
 290
 291     if(GetGraphicsMode( dev->hdc ) == GM_COMPATIBLE) {
 292         right--;
 293         bottom--;
 294     }
 295
 296     emr.emr.iType     = EMR_ROUNDRECT;
 297     emr.emr.nSize     = sizeof(emr);
 298     emr.rclBox.left   = left;
 299     emr.rclBox.top    = top;
 300     emr.rclBox.right  = right;
 301     emr.rclBox.bottom = bottom;
 302     emr.szlCorner.cx  = ell_width;
 303     emr.szlCorner.cy  = ell_height;
 304
 305     EMFDRV_UpdateBBox( dev, &emr.rclBox );
 306     return EMFDRV_WriteRecord( dev, &emr.emr );
 307 }
 308
 309 /***********************************************************************
 310  *           EMFDRV_SetPixel
 311  */
 312 COLORREF EMFDRV_SetPixel( PHYSDEV dev, INT x, INT y, COLORREF color )
 313 {
 314     EMRSETPIXELV emr;
 315
 316     emr.emr.iType  = EMR_SETPIXELV;
 317     emr.emr.nSize  = sizeof(emr);
 318     emr.ptlPixel.x = x;
 319     emr.ptlPixel.y = y;
 320     emr.crColor = color;
 321
 322     if (EMFDRV_WriteRecord( dev, &emr.emr )) {
 323         RECTL bounds;
 324         bounds.left = bounds.right = x;
 325         bounds.top = bounds.bottom = y;
 326         EMFDRV_UpdateBBox( dev, &bounds );
 327         return color;
 328     }
 329     return -1;
 330 }
 331
 332 /**********************************************************************
 333  *          EMFDRV_Polylinegon
 334  *
 335  * Helper for EMFDRV_Poly{line|gon}
 336  */
 337 static BOOL
 338 EMFDRV_Polylinegon( PHYSDEV dev, const POINT* pt, INT count, DWORD iType )
 339 {
 340     EMRPOLYLINE *emr;
 341     DWORD size;
 342     INT i;
 343     BOOL ret;
 344
 345     size = sizeof(EMRPOLYLINE) + sizeof(POINTL) * (count - 1);
 346
 347     emr = HeapAlloc( GetProcessHeap(), 0, size );
 348     emr->emr.iType = iType;
 349     emr->emr.nSize = size;
 350
 351     emr->rclBounds.left = emr->rclBounds.right = pt[0].x;
 352     emr->rclBounds.top = emr->rclBounds.bottom = pt[0].y;
 353
 354     for(i = 1; i < count; i++) {
 355         if(pt[i].x < emr->rclBounds.left)
 356             emr->rclBounds.left = pt[i].x;
 357         else if(pt[i].x > emr->rclBounds.right)
 358             emr->rclBounds.right = pt[i].x;
 359         if(pt[i].y < emr->rclBounds.top)
 360             emr->rclBounds.top = pt[i].y;
 361         else if(pt[i].y > emr->rclBounds.bottom)
 362             emr->rclBounds.bottom = pt[i].y;
 363     }
 364
 365     emr->cptl = count;
 366     memcpy(emr->aptl, pt, count * sizeof(POINTL));
 367
 368     ret = EMFDRV_WriteRecord( dev, &emr->emr );
 369     if(ret)
 370         EMFDRV_UpdateBBox( dev, &emr->rclBounds );
 371     HeapFree( GetProcessHeap(), 0, emr );
 372     return ret;
 373 }
 374
 375
 376 /**********************************************************************
 377  *          EMFDRV_Polylinegon16
 378  *
 379  * Helper for EMFDRV_Poly{line|gon}
 380  *
 381  *  This is not a legacy function!
 382  *  We are using SHORT integers to save space.
 383  */
 384 static BOOL
 385 EMFDRV_Polylinegon16( PHYSDEV dev, const POINT* pt, INT count, DWORD iType )
 386 {
 387     EMRPOLYLINE16 *emr;
 388     DWORD size;
 389     INT i;
 390     BOOL ret;
 391
 392     /* check whether all points fit in the SHORT int POINT structure */
 393     for(i = 0; i < count; i++) {
 394         if( ((pt[i].x+0x8000) & ~0xffff ) ||
 395             ((pt[i].y+0x8000) & ~0xffff ) )
 396             return FALSE;
 397     }
 398
 399     size = sizeof(EMRPOLYLINE16) + sizeof(POINTS) * (count - 1);
 400
 401     emr = HeapAlloc( GetProcessHeap(), 0, size );
 402     emr->emr.iType = iType;
 403     emr->emr.nSize = size;
 404
 405     emr->rclBounds.left = emr->rclBounds.right = pt[0].x;
 406     emr->rclBounds.top = emr->rclBounds.bottom = pt[0].y;
 407
 408     for(i = 1; i < count; i++) {
 409         if(pt[i].x < emr->rclBounds.left)
 410             emr->rclBounds.left = pt[i].x;
 411         else if(pt[i].x > emr->rclBounds.right)
 412             emr->rclBounds.right = pt[i].x;
 413         if(pt[i].y < emr->rclBounds.top)
 414             emr->rclBounds.top = pt[i].y;
 415         else if(pt[i].y > emr->rclBounds.bottom)
 416             emr->rclBounds.bottom = pt[i].y;
 417     }
 418
 419     emr->cpts = count;
 420     for(i = 0; i < count; i++ ) {
 421         emr->apts[i].x = pt[i].x;
 422         emr->apts[i].y = pt[i].y;
 423     }
 424
 425     ret = EMFDRV_WriteRecord( dev, &emr->emr );
 426     if(ret)
 427         EMFDRV_UpdateBBox( dev, &emr->rclBounds );
 428     HeapFree( GetProcessHeap(), 0, emr );
 429     return ret;
 430 }
 431
 432
 433 /**********************************************************************
 434  *          EMFDRV_Polyline
 435  */
 436 BOOL EMFDRV_Polyline( PHYSDEV dev, const POINT* pt, INT count )
 437 {
 438     if( EMFDRV_Polylinegon16( dev, pt, count, EMR_POLYLINE16 ) )
 439         return TRUE;
 440     return EMFDRV_Polylinegon( dev, pt, count, EMR_POLYLINE );
 441 }
 442
 443 /**********************************************************************
 444  *          EMFDRV_Polygon
 445  */
 446 BOOL EMFDRV_Polygon( PHYSDEV dev, const POINT* pt, INT count )
 447 {
 448     if(count < 2) return FALSE;
 449     if( EMFDRV_Polylinegon16( dev, pt, count, EMR_POLYGON16 ) )
 450         return TRUE;
 451     return EMFDRV_Polylinegon( dev, pt, count, EMR_POLYGON );
 452 }
 453
 454
 455 /**********************************************************************
 456  *          EMFDRV_PolyPolylinegon
 457  *
 458  * Helper for EMFDRV_PolyPoly{line|gon}
 459  */
 460 static BOOL
 461 EMFDRV_PolyPolylinegon( PHYSDEV dev, const POINT* pt, const INT* counts, UINT polys,
 462                         DWORD iType)
 463 {
 464     EMRPOLYPOLYLINE *emr;
 465     DWORD cptl = 0, poly, size;
 466     INT point;
 467     RECTL bounds;
 468     const POINT *pts;
 469     BOOL ret;
 470
 471     bounds.left = bounds.right = pt[0].x;
 472     bounds.top = bounds.bottom = pt[0].y;
 473
 474     pts = pt;
 475     for(poly = 0; poly < polys; poly++) {
 476         cptl += counts[poly];
 477         for(point = 0; point < counts[poly]; point++) {
 478             if(bounds.left > pts->x) bounds.left = pts->x;
 479             else if(bounds.right < pts->x) bounds.right = pts->x;
 480             if(bounds.top > pts->y) bounds.top = pts->y;
 481             else if(bounds.bottom < pts->y) bounds.bottom = pts->y;
 482             pts++;
 483         }
 484     }
 485
 486     size = sizeof(EMRPOLYPOLYLINE) + (polys - 1) * sizeof(DWORD) +
 487       (cptl - 1) * sizeof(POINTL);
 488
 489     emr = HeapAlloc( GetProcessHeap(), 0, size );
 490
 491     emr->emr.iType = iType;
 492     emr->emr.nSize = size;
 493     emr->rclBounds = bounds;
 494     emr->nPolys = polys;
 495     emr->cptl = cptl;
 496     memcpy(emr->aPolyCounts, counts, polys * sizeof(DWORD));
 497     memcpy(emr->aPolyCounts + polys, pt, cptl * sizeof(POINTL));
 498     ret = EMFDRV_WriteRecord( dev, &emr->emr );
 499     if(ret)
 500         EMFDRV_UpdateBBox( dev, &emr->rclBounds );
 501     HeapFree( GetProcessHeap(), 0, emr );
 502     return ret;
 503 }
 504
 505 /**********************************************************************
 506  *          EMFDRV_PolyPolyline
 507  */
 508 BOOL EMFDRV_PolyPolyline(PHYSDEV dev, const POINT* pt, const DWORD* counts, DWORD polys)
 509 {
 510     return EMFDRV_PolyPolylinegon( dev, pt, (const INT *)counts, polys,
 511                                    EMR_POLYPOLYLINE );
 512 }
 513
 514 /**********************************************************************
 515  *          EMFDRV_PolyPolygon
 516  */
 517 BOOL EMFDRV_PolyPolygon( PHYSDEV dev, const POINT* pt, const INT* counts, UINT polys )
 518 {
 519     return EMFDRV_PolyPolylinegon( dev, pt, counts, polys, EMR_POLYPOLYGON );
 520 }
 521
 522
 523 /**********************************************************************
 524  *          EMFDRV_ExtFloodFill
 525  */
 526 BOOL EMFDRV_ExtFloodFill( PHYSDEV dev, INT x, INT y, COLORREF color, UINT fillType )
 527 {
 528     EMREXTFLOODFILL emr;
 529
 530     emr.emr.iType = EMR_EXTFLOODFILL;
 531     emr.emr.nSize = sizeof(emr);
 532     emr.ptlStart.x = x;
 533     emr.ptlStart.y = y;
 534     emr.crColor = color;
 535     emr.iMode = fillType;
 536
 537     return EMFDRV_WriteRecord( dev, &emr.emr );
 538 }
 539
 540
 541 /*********************************************************************
 542  *          EMFDRV_FillRgn
 543  */
 544 BOOL EMFDRV_FillRgn( PHYSDEV dev, HRGN hrgn, HBRUSH hbrush )
 545 {
 546     EMRFILLRGN *emr;
 547     DWORD size, rgnsize, index;
 548     BOOL ret;
 549
 550     index = EMFDRV_CreateBrushIndirect( dev, hbrush );
 551     if(!index) return FALSE;
 552
 553     rgnsize = GetRegionData( hrgn, 0, NULL );
 554     size = rgnsize + offsetof(EMRFILLRGN,RgnData);
 555     emr = HeapAlloc( GetProcessHeap(), 0, size );
 556
 557     GetRegionData( hrgn, rgnsize, (RGNDATA *)&emr->RgnData );
 558
 559     emr->emr.iType = EMR_FILLRGN;
 560     emr->emr.nSize = size;
 561     emr->rclBounds.left   = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.left;
 562     emr->rclBounds.top    = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.top;
 563     emr->rclBounds.right  = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.right - 1;
 564     emr->rclBounds.bottom = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.bottom - 1;
 565     emr->cbRgnData = rgnsize;
 566     emr->ihBrush = index;
 567
 568     ret = EMFDRV_WriteRecord( dev, &emr->emr );
 569     if(ret)
 570         EMFDRV_UpdateBBox( dev, &emr->rclBounds );
 571     HeapFree( GetProcessHeap(), 0, emr );
 572     return ret;
 573 }
 574 /*********************************************************************
 575  *          EMFDRV_FrameRgn
 576  */
 577 BOOL EMFDRV_FrameRgn( PHYSDEV dev, HRGN hrgn, HBRUSH hbrush, INT width, INT height )
 578 {
 579     EMRFRAMERGN *emr;
 580     DWORD size, rgnsize, index;
 581     BOOL ret;
 582
 583     index = EMFDRV_CreateBrushIndirect( dev, hbrush );
 584     if(!index) return FALSE;
 585
 586     rgnsize = GetRegionData( hrgn, 0, NULL );
 587     size = rgnsize + offsetof(EMRFRAMERGN,RgnData);
 588     emr = HeapAlloc( GetProcessHeap(), 0, size );
 589
 590     GetRegionData( hrgn, rgnsize, (RGNDATA *)&emr->RgnData );
 591
 592     emr->emr.iType = EMR_FRAMERGN;
 593     emr->emr.nSize = size;
 594     emr->rclBounds.left   = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.left;
 595     emr->rclBounds.top    = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.top;
 596     emr->rclBounds.right  = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.right - 1;
 597     emr->rclBounds.bottom = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.bottom - 1;
 598     emr->cbRgnData = rgnsize;
 599     emr->ihBrush = index;
 600     emr->szlStroke.cx = width;
 601     emr->szlStroke.cy = height;
 602
 603     ret = EMFDRV_WriteRecord( dev, &emr->emr );
 604     if(ret)
 605         EMFDRV_UpdateBBox( dev, &emr->rclBounds );
 606     HeapFree( GetProcessHeap(), 0, emr );
 607     return ret;
 608 }
 609
 610 /*********************************************************************
 611  *          EMFDRV_PaintInvertRgn
 612  *
 613  * Helper for EMFDRV_{Paint|Invert}Rgn
 614  */
 615 static BOOL EMFDRV_PaintInvertRgn( PHYSDEV dev, HRGN hrgn, DWORD iType )
 616 {
 617     EMRINVERTRGN *emr;
 618     DWORD size, rgnsize;
 619     BOOL ret;
 620
 621
 622     rgnsize = GetRegionData( hrgn, 0, NULL );
 623     size = rgnsize + offsetof(EMRINVERTRGN,RgnData);
 624     emr = HeapAlloc( GetProcessHeap(), 0, size );
 625
 626     GetRegionData( hrgn, rgnsize, (RGNDATA *)&emr->RgnData );
 627
 628     emr->emr.iType = iType;
 629     emr->emr.nSize = size;
 630     emr->rclBounds.left   = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.left;
 631     emr->rclBounds.top    = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.top;
 632     emr->rclBounds.right  = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.right - 1;
 633     emr->rclBounds.bottom = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.bottom - 1;
 634     emr->cbRgnData = rgnsize;
 635
 636     ret = EMFDRV_WriteRecord( dev, &emr->emr );
 637     if(ret)
 638         EMFDRV_UpdateBBox( dev, &emr->rclBounds );
 639     HeapFree( GetProcessHeap(), 0, emr );
 640     return ret;
 641 }
 642
 643 /**********************************************************************
 644  *          EMFDRV_PaintRgn
 645  */
 646 BOOL EMFDRV_PaintRgn( PHYSDEV dev, HRGN hrgn )
 647 {
 648     return EMFDRV_PaintInvertRgn( dev, hrgn, EMR_PAINTRGN );
 649 }
 650
 651 /**********************************************************************
 652  *          EMFDRV_InvertRgn
 653  */
 654 BOOL EMFDRV_InvertRgn( PHYSDEV dev, HRGN hrgn )
 655 {
 656     return EMFDRV_PaintInvertRgn( dev, hrgn, EMR_INVERTRGN );
 657 }
 658
 659 /**********************************************************************
 660  *          EMFDRV_ExtTextOut
 661  */
 662 BOOL EMFDRV_ExtTextOut( PHYSDEV dev, INT x, INT y, UINT flags, const RECT *lprect,
 663                         LPCWSTR str, UINT count, const INT *lpDx )
 664 {
 665     EMREXTTEXTOUTW *pemr;
 666     DWORD nSize;
 667     BOOL ret;
 668     int textHeight = 0;
 669     int textWidth = 0;
 670     const UINT textAlign = GetTextAlign( dev->hdc );
 671     const INT graphicsMode = GetGraphicsMode( dev->hdc );
 672     FLOAT exScale, eyScale;
 673
 674     nSize = sizeof(*pemr) + ((count+1) & ~1) * sizeof(WCHAR) + count * sizeof(INT);
 675
 676     TRACE("%s %s count %d nSize = %d\n", debugstr_wn(str, count),
 677            wine_dbgstr_rect(lprect), count, nSize);
 678     pemr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, nSize);
 679
 680     if (graphicsMode == GM_COMPATIBLE)
 681     {
 682         const INT horzSize = GetDeviceCaps( dev->hdc, HORZSIZE );
 683         const INT horzRes  = GetDeviceCaps( dev->hdc, HORZRES );
 684         const INT vertSize = GetDeviceCaps( dev->hdc, VERTSIZE );
 685         const INT vertRes  = GetDeviceCaps( dev->hdc, VERTRES );
 686         SIZE wndext, vportext;
 687
 688         GetViewportExtEx( dev->hdc, &vportext );
 689         GetWindowExtEx( dev->hdc, &wndext );
 690         exScale = 100.0 * ((FLOAT)horzSize  / (FLOAT)horzRes) /
 691                           ((FLOAT)wndext.cx / (FLOAT)vportext.cx);
 692         eyScale = 100.0 * ((FLOAT)vertSize  / (FLOAT)vertRes) /
 693                           ((FLOAT)wndext.cy / (FLOAT)vportext.cy);
 694     }
 695     else
 696     {
 697         exScale = 0.0;
 698         eyScale = 0.0;
 699     }
 700
 701     pemr->emr.iType = EMR_EXTTEXTOUTW;
 702     pemr->emr.nSize = nSize;
 703     pemr->iGraphicsMode = graphicsMode;
 704     pemr->exScale = exScale;
 705     pemr->eyScale = eyScale;
 706     pemr->emrtext.ptlReference.x = x;
 707     pemr->emrtext.ptlReference.y = y;
 708     pemr->emrtext.nChars = count;
 709     pemr->emrtext.offString = sizeof(*pemr);
 710     memcpy((char*)pemr + pemr->emrtext.offString, str, count * sizeof(WCHAR));
 711     pemr->emrtext.fOptions = flags;
 712     if(!lprect) {
 713         pemr->emrtext.rcl.left = pemr->emrtext.rcl.top = 0;
 714         pemr->emrtext.rcl.right = pemr->emrtext.rcl.bottom = -1;
 715     } else {
 716         pemr->emrtext.rcl.left = lprect->left;
 717         pemr->emrtext.rcl.top = lprect->top;
 718         pemr->emrtext.rcl.right = lprect->right;
 719         pemr->emrtext.rcl.bottom = lprect->bottom;
 720     }
 721
 722     pemr->emrtext.offDx = pemr->emrtext.offString + ((count+1) & ~1) * sizeof(WCHAR);
 723     if(lpDx) {
 724         UINT i;
 725         SIZE strSize;
 726         memcpy((char*)pemr + pemr->emrtext.offDx, lpDx, count * sizeof(INT));
 727         for (i = 0; i < count; i++) {
 728             textWidth += lpDx[i];
 729         }
 730         if (GetTextExtentPoint32W( dev->hdc, str, count, &strSize ))
 731             textHeight = strSize.cy;
 732     }
 733     else {
 734         UINT i;
 735         INT *dx = (INT *)((char*)pemr + pemr->emrtext.offDx);
 736         SIZE charSize;
 737         for (i = 0; i < count; i++) {
 738             if (GetTextExtentPoint32W( dev->hdc, str + i, 1, &charSize )) {
 739                 dx[i] = charSize.cx;
 740                 textWidth += charSize.cx;
 741                 textHeight = max(textHeight, charSize.cy);
 742             }
 743         }
 744     }
 745
 746     if (!lprect)
 747     {
 748         pemr->rclBounds.left = pemr->rclBounds.top = 0;
 749         pemr->rclBounds.right = pemr->rclBounds.bottom = -1;
 750         goto no_bounds;
 751     }
 752
 753     switch (textAlign & (TA_LEFT | TA_RIGHT | TA_CENTER)) {
 754     case TA_CENTER: {
 755         pemr->rclBounds.left  = x - (textWidth / 2) - 1;
 756         pemr->rclBounds.right = x + (textWidth / 2) + 1;
 757         break;
 758     }
 759     case TA_RIGHT: {
 760         pemr->rclBounds.left  = x - textWidth - 1;
 761         pemr->rclBounds.right = x;
 762         break;
 763     }
 764     default: { /* TA_LEFT */
 765         pemr->rclBounds.left  = x;
 766         pemr->rclBounds.right = x + textWidth + 1;
 767     }
 768     }
 769
 770     switch (textAlign & (TA_TOP | TA_BOTTOM | TA_BASELINE)) {
 771     case TA_BASELINE: {
 772         TEXTMETRICW tm;
 773         if (!GetTextMetricsW( dev->hdc, &tm ))
 774             tm.tmDescent = 0;
 775         /* Play safe here... it's better to have a bounding box */
 776         /* that is too big than too small. */
 777         pemr->rclBounds.top    = y - textHeight - 1;
 778         pemr->rclBounds.bottom = y + tm.tmDescent + 1;
 779         break;
 780     }
 781     case TA_BOTTOM: {
 782         pemr->rclBounds.top    = y - textHeight - 1;
 783         pemr->rclBounds.bottom = y;
 784         break;
 785     }
 786     default: { /* TA_TOP */
 787         pemr->rclBounds.top    = y;
 788         pemr->rclBounds.bottom = y + textHeight + 1;
 789     }
 790     }
 791     EMFDRV_UpdateBBox( dev, &pemr->rclBounds );
 792
 793 no_bounds:
 794     ret = EMFDRV_WriteRecord( dev, &pemr->emr );
 795     HeapFree( GetProcessHeap(), 0, pemr );
 796     return ret;
 797 }