objects/bitmap.c

   1 /*
   2  * GDI bitmap objects
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *           1998 Huw D M Davies
   6  */
   7
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include "gdi.h"
  11 #include "dc.h"
  12 #include "bitmap.h"
  13 #include "heap.h"
  14 #include "global.h"
  15 #include "sysmetrics.h"
  16 #include "cursoricon.h"
  17 #include "debug.h"
  18 #include "x11drv.h"
  19
  20 /***********************************************************************
  21  *           BITMAP_GetPadding
  22  *
  23  * Return number of bytes to pad a scanline of 16-bit aligned Windows DDB data.
  24  */
  25 INT32 BITMAP_GetPadding( int bmWidth, int bpp )
  26 {
  27     INT32 pad;
  28
  29     switch (bpp)
  30     {
  31     case 1:
  32         pad = ((bmWidth-1) & 8) ? 0 : 1;
  33         break;
  34
  35     case 8:
  36         pad = (2 - (bmWidth & 1)) & 1;
  37         break;
  38
  39     case 24:
  40         pad = (bmWidth*3) & 1;
  41         break;
  42
  43     case 32:
  44     case 16:
  45     case 15:
  46         pad = 0; /* we have 16bit alignment already */
  47         break;
  48
  49     case 4:
  50         if (!(bmWidth & 3)) pad = 0;
  51         else pad = ((4 - (bmWidth & 3)) + 1) / 2;
  52         break;
  53
  54     default:
  55         WARN(bitmap,"Unknown depth %d, please report.\n", bpp );
  56         return -1;
  57     }
  58     return pad;
  59 }
  60
  61 /***********************************************************************
  62  *           BITMAP_GetWidthBytes
  63  *
  64  * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
  65  * data.
  66  */
  67 INT32 BITMAP_GetWidthBytes( INT32 bmWidth, INT32 bpp )
  68 {
  69     switch(bpp)
  70     {
  71     case 1:
  72         return 2 * ((bmWidth+15) >> 4);
  73
  74     case 24:
  75         bmWidth *= 3; /* fall through */
  76     case 8:
  77         return bmWidth + (bmWidth & 1);
  78
  79     case 32:
  80         return bmWidth * 4;
  81
  82     case 16:
  83     case 15:
  84         return bmWidth * 2;
  85
  86     case 4:
  87         return 2 * ((bmWidth+3) >> 2);
  88
  89     default:
  90         WARN(bitmap,"Unknown depth %d, please report.\n", bpp );
  91     }
  92     return -1;
  93 }
  94
  95 /***********************************************************************
  96  *           CreateUserBitmap16    (GDI.407)
  97  */
  98 HBITMAP16 WINAPI CreateUserBitmap16( INT16 width, INT16 height, UINT16 planes,
  99                                      UINT16 bpp, LPCVOID bits )
 100 {
 101     return CreateBitmap16( width, height, planes, bpp, bits );
 102 }
 103
 104 /***********************************************************************
 105  *           CreateUserDiscardableBitmap16    (GDI.409)
 106  */
 107 HBITMAP16 WINAPI CreateUserDiscardableBitmap16( WORD dummy,
 108                                                 INT16 width, INT16 height )
 109 {
 110     return CreateUserBitmap16( width, height, 1, screenDepth, NULL );
 111 }
 112
 113
 114 /***********************************************************************
 115  *           CreateBitmap16    (GDI.48)
 116  */
 117 HBITMAP16 WINAPI CreateBitmap16( INT16 width, INT16 height, UINT16 planes,
 118                                  UINT16 bpp, LPCVOID bits )
 119 {
 120     return CreateBitmap32( width, height, planes, bpp, bits );
 121 }
 122
 123
 124 /******************************************************************************
 125  * CreateBitmap32 [GDI32.25]  Creates a bitmap with the specified info
 126  *
 127  * PARAMS
 128  *    width  [I] bitmap width
 129  *    height [I] bitmap height
 130  *    planes [I] Number of color planes
 131  *    bpp    [I] Number of bits to identify a color
 132  *    bits   [I] Pointer to array containing color data
 133  *
 134  * RETURNS
 135  *    Success: Handle to bitmap
 136  *    Failure: 0
 137  */
 138 HBITMAP32 WINAPI CreateBitmap32( INT32 width, INT32 height, UINT32 planes,
 139                                  UINT32 bpp, LPCVOID bits )
 140 {
 141     BITMAPOBJ *bmp;
 142     HBITMAP32 hbitmap;
 143
 144     planes = (BYTE)planes;
 145     bpp    = (BYTE)bpp;
 146
 147
 148       /* Check parameters */
 149     if (!height || !width) return 0;
 150     if (planes != 1) {
 151         FIXME(bitmap, "planes = %d\n", planes);
 152         return 0;
 153     }
 154     if (height < 0) height = -height;
 155     if (width < 0) width = -width;
 156
 157       /* Create the BITMAPOBJ */
 158     hbitmap = GDI_AllocObject( sizeof(BITMAPOBJ), BITMAP_MAGIC );
 159     if (!hbitmap) return 0;
 160
 161     TRACE(bitmap, "%dx%d, %d colors returning %08x\n", width, height,
 162           1 << (planes*bpp), hbitmap);
 163
 164     bmp = (BITMAPOBJ *) GDI_HEAP_LOCK( hbitmap );
 165
 166     bmp->size.cx = 0;
 167     bmp->size.cy = 0;
 168     bmp->bitmap.bmType = 0;
 169     bmp->bitmap.bmWidth = width;
 170     bmp->bitmap.bmHeight = height;
 171     bmp->bitmap.bmPlanes = planes;
 172     bmp->bitmap.bmBitsPixel = bpp;
 173     bmp->bitmap.bmWidthBytes = BITMAP_GetWidthBytes( width, bpp );
 174     bmp->bitmap.bmBits = NULL;
 175
 176     bmp->DDBitmap = NULL;
 177     bmp->dib = NULL;
 178
 179     if (bits) /* Set bitmap bits */
 180         SetBitmapBits32( hbitmap, height * bmp->bitmap.bmWidthBytes,
 181                          bits );
 182     GDI_HEAP_UNLOCK( hbitmap );
 183     return hbitmap;
 184 }
 185
 186
 187 /***********************************************************************
 188  *           CreateCompatibleBitmap16    (GDI.51)
 189  */
 190 HBITMAP16 WINAPI CreateCompatibleBitmap16(HDC16 hdc, INT16 width, INT16 height)
 191 {
 192     return CreateCompatibleBitmap32( hdc, width, height );
 193 }
 194
 195
 196 /******************************************************************************
 197  * CreateCompatibleBitmap32 [GDI32.30]  Creates a bitmap compatible with the DC
 198  *
 199  * PARAMS
 200  *    hdc    [I] Handle to device context
 201  *    width  [I] Width of bitmap
 202  *    height [I] Height of bitmap
 203  *
 204  * RETURNS
 205  *    Success: Handle to bitmap
 206  *    Failure: 0
 207  */
 208 HBITMAP32 WINAPI CreateCompatibleBitmap32( HDC32 hdc, INT32 width, INT32 height)
 209 {
 210     HBITMAP32 hbmpRet = 0;
 211     DC *dc;
 212
 213     TRACE(bitmap, "(%04x,%d,%d) = \n", hdc, width, height );
 214     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 215     if ((width >0x1000) || (height > 0x1000)) {
 216         FIXME(bitmap,"got bad width %d or height %d, please look for reason\n",
 217               width, height );
 218     } else {
 219         hbmpRet = CreateBitmap32( width, height, 1, dc->w.bitsPerPixel, NULL );
 220         if(dc->funcs->pCreateBitmap)
 221             dc->funcs->pCreateBitmap( hbmpRet );
 222     }
 223     TRACE(bitmap,"\t\t%04x\n", hbmpRet);
 224     GDI_HEAP_UNLOCK(hdc);
 225     return hbmpRet;
 226 }
 227
 228
 229 /***********************************************************************
 230  *           CreateBitmapIndirect16    (GDI.49)
 231  */
 232 HBITMAP16 WINAPI CreateBitmapIndirect16( const BITMAP16 * bmp )
 233 {
 234     return CreateBitmap16( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes,
 235                            bmp->bmBitsPixel, PTR_SEG_TO_LIN( bmp->bmBits ) );
 236 }
 237
 238
 239 /******************************************************************************
 240  * CreateBitmapIndirect32 [GDI32.26]  Creates a bitmap with the specifies info
 241  *
 242  * RETURNS
 243  *    Success: Handle to bitmap
 244  *    Failure: NULL
 245  */
 246 HBITMAP32 WINAPI CreateBitmapIndirect32(
 247     const BITMAP32 * bmp) /* [in] Pointer to the bitmap data */
 248 {
 249     return CreateBitmap32( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes,
 250                            bmp->bmBitsPixel, bmp->bmBits );
 251 }
 252
 253
 254 /***********************************************************************
 255  *           GetBitmapBits16    (GDI.74)
 256  */
 257 LONG WINAPI GetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPVOID buffer )
 258 {
 259     return GetBitmapBits32( hbitmap, count, buffer );
 260 }
 261
 262
 263 /***********************************************************************
 264  * GetBitmapBits32 [GDI32.143]  Copies bitmap bits of bitmap to buffer
 265  *
 266  * RETURNS
 267  *    Success: Number of bytes copied
 268  *    Failure: 0
 269  */
 270 LONG WINAPI GetBitmapBits32(
 271     HBITMAP32 hbitmap, /* [in]  Handle to bitmap */
 272     LONG count,        /* [in]  Number of bytes to copy */
 273     LPVOID bits)       /* [out] Pointer to buffer to receive bits */
 274 {
 275     BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
 276     LONG height, ret;
 277
 278     if (!bmp) return 0;
 279
 280     if (count < 0) {
 281         WARN(bitmap, "(%ld): Negative number of bytes passed???\n", count );
 282         count = -count;
 283     }
 284
 285     /* Only get entire lines */
 286     height = count / bmp->bitmap.bmWidthBytes;
 287     if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight;
 288     count = height * bmp->bitmap.bmWidthBytes;
 289     if (count == 0)
 290       {
 291         WARN(bitmap, "Less then one entire line requested\n");
 292         GDI_HEAP_UNLOCK( hbitmap );
 293         return 0;
 294       }
 295
 296
 297     TRACE(bitmap, "(%08x, %ld, %p) %dx%d %d colors fetched height: %ld\n",
 298             hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
 299             1 << bmp->bitmap.bmBitsPixel, height );
 300
 301     if(bmp->DDBitmap) {
 302
 303         TRACE(bitmap, "Calling device specific BitmapBits\n");
 304         if(bmp->DDBitmap->funcs->pBitmapBits)
 305             ret = bmp->DDBitmap->funcs->pBitmapBits(hbitmap, bits, count,
 306                                                     DDB_GET);
 307         else {
 308             ERR(bitmap, "BitmapBits == NULL??\n");
 309             ret = 0;
 310         }
 311
 312     } else {
 313
 314         if(!bmp->bitmap.bmBits) {
 315             WARN(bitmap, "Bitmap is empty\n");
 316             ret = 0;
 317         } else {
 318             memcpy(bits, bmp->bitmap.bmBits, count);
 319             ret = count;
 320         }
 321
 322     }
 323
 324     GDI_HEAP_UNLOCK( hbitmap );
 325     return ret;
 326 }
 327
 328
 329 /***********************************************************************
 330  *           SetBitmapBits16    (GDI.106)
 331  */
 332 LONG WINAPI SetBitmapBits16( HBITMAP16 hbitmap, LONG count, LPCVOID buffer )
 333 {
 334     return SetBitmapBits32( hbitmap, count, buffer );
 335 }
 336
 337
 338 /******************************************************************************
 339  * SetBitmapBits32 [GDI32.303]  Sets bits of color data for a bitmap
 340  *
 341  * RETURNS
 342  *    Success: Number of bytes used in setting the bitmap bits
 343  *    Failure: 0
 344  */
 345 LONG WINAPI SetBitmapBits32(
 346     HBITMAP32 hbitmap, /* [in] Handle to bitmap */
 347     LONG count,        /* [in] Number of bytes in bitmap array */
 348     LPCVOID bits)      /* [in] Address of array with bitmap bits */
 349 {
 350     BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
 351     LONG height, ret;
 352
 353     if (!bmp) return 0;
 354
 355     if (count < 0) {
 356         WARN(bitmap, "(%ld): Negative number of bytes passed???\n", count );
 357         count = -count;
 358     }
 359
 360     /* Only get entire lines */
 361     height = count / bmp->bitmap.bmWidthBytes;
 362     if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight;
 363     count = height * bmp->bitmap.bmWidthBytes;
 364
 365     TRACE(bitmap, "(%08x, %ld, %p) %dx%d %d colors fetched height: %ld\n",
 366             hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
 367             1 << bmp->bitmap.bmBitsPixel, height );
 368
 369     if(bmp->DDBitmap) {
 370
 371         TRACE(bitmap, "Calling device specific BitmapBits\n");
 372         if(bmp->DDBitmap->funcs->pBitmapBits)
 373             ret = bmp->DDBitmap->funcs->pBitmapBits(hbitmap, (void *) bits,
 374                                                     count, DDB_SET);
 375         else {
 376             ERR(bitmap, "BitmapBits == NULL??\n");
 377             ret = 0;
 378         }
 379
 380     } else {
 381
 382         if(!bmp->bitmap.bmBits) /* Alloc enough for entire bitmap */
 383             bmp->bitmap.bmBits = HeapAlloc( GetProcessHeap(), 0, count );
 384         if(!bmp->bitmap.bmBits) {
 385             WARN(bitmap, "Unable to allocate bit buffer\n");
 386             ret = 0;
 387         } else {
 388             memcpy(bmp->bitmap.bmBits, bits, count);
 389             ret = count;
 390         }
 391     }
 392
 393     GDI_HEAP_UNLOCK( hbitmap );
 394     return ret;
 395 }
 396
 397 /***********************************************************************
 398  * LoadImage16 [USER.389]
 399  *
 400  */
 401 HANDLE16 WINAPI LoadImage16( HINSTANCE16 hinst, LPCSTR name, UINT16 type,
 402                              INT16 desiredx, INT16 desiredy, UINT16 loadflags)
 403 {
 404         if (HIWORD(name)) {
 405             TRACE(resource,"(0x%04x,%s,%d,%d,%d,0x%08x)\n",
 406                 hinst,(char *)PTR_SEG_TO_LIN(name),type,desiredx,desiredy,loadflags);
 407         } else {
 408             TRACE(resource,"LoadImage16(0x%04x,%p,%d,%d,%d,0x%08x)\n",
 409                 hinst,name,type,desiredx,desiredy,loadflags);
 410         }
 411         switch (type) {
 412         case IMAGE_BITMAP:
 413                 return LoadBitmap16(hinst,(SEGPTR)name);
 414         case IMAGE_ICON:
 415                 return LoadIcon16(hinst,(SEGPTR)name);
 416         case IMAGE_CURSOR:
 417                 return LoadCursor16(hinst,(SEGPTR)name);
 418         }
 419         return 0;
 420
 421 }
 422
 423 /**********************************************************************
 424  *          LoadImage32A    (USER32.365)
 425  *
 426  * FIXME: implementation lacks some features, see LR_ defines in windows.h
 427  */
 428
 429 HANDLE32 WINAPI LoadImage32A( HINSTANCE32 hinst, LPCSTR name, UINT32 type,
 430                               INT32 desiredx, INT32 desiredy, UINT32 loadflags)
 431 {
 432     HANDLE32 res;
 433     LPWSTR u_name;
 434
 435     if (HIWORD(name)) u_name = HEAP_strdupAtoW(GetProcessHeap(), 0, name);
 436     else u_name=(LPWSTR)name;
 437     res = LoadImage32W(hinst, u_name, type, desiredx, desiredy, loadflags);
 438     if (HIWORD(name)) HeapFree(GetProcessHeap(), 0, u_name);
 439     return res;
 440 }
 441
 442
 443 /******************************************************************************
 444  * LoadImage32W [USER32.366]  Loads an icon, cursor, or bitmap
 445  *
 446  * PARAMS
 447  *    hinst     [I] Handle of instance that contains image
 448  *    name      [I] Name of image
 449  *    type      [I] Type of image
 450  *    desiredx  [I] Desired width
 451  *    desiredy  [I] Desired height
 452  *    loadflags [I] Load flags
 453  *
 454  * RETURNS
 455  *    Success: Handle to newly loaded image
 456  *    Failure: NULL
 457  *
 458  * FIXME: Implementation lacks some features, see LR_ defines in windows.h
 459  */
 460 HANDLE32 WINAPI LoadImage32W( HINSTANCE32 hinst, LPCWSTR name, UINT32 type,
 461                 INT32 desiredx, INT32 desiredy, UINT32 loadflags )
 462 {
 463     if (HIWORD(name)) {
 464         TRACE(resource,"(0x%04x,%p,%d,%d,%d,0x%08x)\n",
 465               hinst,name,type,desiredx,desiredy,loadflags);
 466     } else {
 467         TRACE(resource,"(0x%04x,%p,%d,%d,%d,0x%08x)\n",
 468               hinst,name,type,desiredx,desiredy,loadflags);
 469     }
 470     if (loadflags & LR_DEFAULTSIZE) {
 471         if (type == IMAGE_ICON) {
 472             if (!desiredx) desiredx = SYSMETRICS_CXICON;
 473             if (!desiredy) desiredy = SYSMETRICS_CYICON;
 474         } else if (type == IMAGE_CURSOR) {
 475             if (!desiredx) desiredx = SYSMETRICS_CXCURSOR;
 476             if (!desiredy) desiredy = SYSMETRICS_CYCURSOR;
 477         }
 478     }
 479     if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
 480     switch (type) {
 481     case IMAGE_BITMAP:
 482         return BITMAP_LoadBitmap32W(hinst, name, loadflags);
 483
 484     case IMAGE_ICON:
 485         {
 486         HDC32 hdc = GetDC32(0);
 487         UINT32 palEnts = GetSystemPaletteEntries32(hdc, 0, 0, NULL);
 488         ReleaseDC32(0, hdc);
 489
 490         return CURSORICON_Load32(hinst, name, desiredx, desiredy,
 491                                  MIN(16, palEnts), FALSE, loadflags);
 492         }
 493
 494     case IMAGE_CURSOR:
 495         return CURSORICON_Load32(hinst, name, desiredx, desiredy,
 496                                  1, TRUE, loadflags);
 497     }
 498     return 0;
 499 }
 500
 501
 502 /**********************************************************************
 503  *              BITMAP_CopyBitmap
 504  *
 505  */
 506 HBITMAP32 BITMAP_CopyBitmap(HBITMAP32 hbitmap)
 507 {
 508     BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
 509     HBITMAP32 res = 0;
 510     BITMAP32 bm;
 511
 512     if(!bmp) return 0;
 513
 514     bm = bmp->bitmap;
 515     bm.bmBits = NULL;
 516     res = CreateBitmapIndirect32(&bm);
 517
 518     if(res) {
 519         char *buf = HeapAlloc( GetProcessHeap(), 0, bm.bmWidthBytes *
 520                                bm.bmHeight );
 521         GetBitmapBits32 (hbitmap, bm.bmWidthBytes * bm.bmHeight, buf);
 522         SetBitmapBits32 (res, bm.bmWidthBytes * bm.bmHeight, buf);
 523         HeapFree( GetProcessHeap(), 0, buf );
 524     }
 525
 526     GDI_HEAP_UNLOCK( hbitmap );
 527     return res;
 528 }
 529
 530
 531 /******************************************************************************
 532  * CopyImage32 [USER32.61]  Creates new image and copies attributes to it
 533  *
 534  * PARAMS
 535  *    hnd      [I] Handle to image to copy
 536  *    type     [I] Type of image to copy
 537  *    desiredx [I] Desired width of new image
 538  *    desiredy [I] Desired height of new image
 539  *    flags    [I] Copy flags
 540  *
 541  * RETURNS
 542  *    Success: Handle to newly created image
 543  *    Failure: NULL
 544  *
 545  * FIXME: implementation still lacks nearly all features, see LR_*
 546  * defines in windows.h
 547  */
 548 HICON32 WINAPI CopyImage32( HANDLE32 hnd, UINT32 type, INT32 desiredx,
 549                              INT32 desiredy, UINT32 flags )
 550 {
 551     switch (type)
 552     {
 553         case IMAGE_BITMAP:
 554                 return BITMAP_CopyBitmap(hnd);
 555         case IMAGE_ICON:
 556                 return CopyIcon32(hnd);
 557         case IMAGE_CURSOR:
 558                 return CopyCursor32(hnd);
 559     }
 560     return 0;
 561 }
 562
 563 /**********************************************************************
 564  *          LoadBitmap16    (USER.175)
 565  *
 566  * NOTES
 567  *    Can this call LoadBitmap32?
 568  */
 569 HBITMAP16 WINAPI LoadBitmap16( HINSTANCE16 instance, SEGPTR name )
 570 {
 571     HBITMAP32 hbitmap = 0;
 572     HDC32 hdc;
 573     HRSRC16 hRsrc;
 574     HGLOBAL16 handle;
 575     BITMAPINFO *info;
 576
 577     if (HIWORD(name))
 578     {
 579         char *str = (char *)PTR_SEG_TO_LIN( name );
 580         TRACE(bitmap, "(%04x,'%s')\n", instance, str );
 581         if (str[0] == '#') name = (SEGPTR)(DWORD)(WORD)atoi( str + 1 );
 582     }
 583     else
 584         TRACE(bitmap, "(%04x,%04x)\n",
 585                         instance, LOWORD(name) );
 586
 587     if (!instance)  /* OEM bitmap */
 588     {
 589         HDC32 hdc;
 590         DC *dc;
 591
 592         if (HIWORD((int)name)) return 0;
 593         hdc = CreateDC32A( "DISPLAY", NULL, NULL, NULL );
 594         dc = DC_GetDCPtr( hdc );
 595         if(dc->funcs->pLoadOEMResource)
 596           hbitmap = dc->funcs->pLoadOEMResource( LOWORD((int)name),
 597                                                  OEM_BITMAP );
 598         GDI_HEAP_UNLOCK( hdc );
 599         DeleteDC32( hdc );
 600         return hbitmap;
 601     }
 602
 603     if (!(hRsrc = FindResource16( instance, name, RT_BITMAP16 ))) return 0;
 604     if (!(handle = LoadResource16( instance, hRsrc ))) return 0;
 605
 606     info = (BITMAPINFO *)LockResource16( handle );
 607     if ((hdc = GetDC32(0)) != 0)
 608     {
 609         char *bits = (char *)info + DIB_BitmapInfoSize( info, DIB_RGB_COLORS );
 610         hbitmap = CreateDIBitmap32( hdc, &info->bmiHeader, CBM_INIT,
 611                                     bits, info, DIB_RGB_COLORS );
 612         ReleaseDC32( 0, hdc );
 613     }
 614     FreeResource16( handle );
 615     return hbitmap;
 616 }
 617
 618
 619 /**********************************************************************
 620  *       BITMAP_LoadBitmap32W
 621  */
 622 HBITMAP32 BITMAP_LoadBitmap32W(HINSTANCE32 instance,LPCWSTR name,
 623                                UINT32 loadflags)
 624 {
 625     HBITMAP32 hbitmap = 0;
 626     HDC32 hdc;
 627     HRSRC32 hRsrc;
 628     HGLOBAL32 handle;
 629     char *ptr = NULL;
 630     BITMAPINFO *info, *fix_info=NULL;
 631     HGLOBAL32 hFix;
 632     int size;
 633
 634     if (!(loadflags & LR_LOADFROMFILE)) {
 635       if (!instance)  /* OEM bitmap */
 636       {
 637           HDC32 hdc;
 638           DC *dc;
 639
 640           if (HIWORD((int)name)) return 0;
 641           hdc = CreateDC32A( "DISPLAY", NULL, NULL, NULL );
 642           dc = DC_GetDCPtr( hdc );
 643           if(dc->funcs->pLoadOEMResource)
 644               hbitmap = dc->funcs->pLoadOEMResource( LOWORD((int)name),
 645                                                      OEM_BITMAP );
 646           GDI_HEAP_UNLOCK( hdc );
 647           DeleteDC32( hdc );
 648           return hbitmap;
 649       }
 650
 651       if (!(hRsrc = FindResource32W( instance, name, RT_BITMAP32W ))) return 0;
 652       if (!(handle = LoadResource32( instance, hRsrc ))) return 0;
 653
 654       if ((info = (BITMAPINFO *)LockResource32( handle )) == NULL) return 0;
 655     }
 656     else
 657     {
 658         if (!(ptr = (char *)VIRTUAL_MapFileW( name ))) return 0;
 659         info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
 660     }
 661     size = DIB_BitmapInfoSize(info, DIB_RGB_COLORS);
 662     if ((hFix = GlobalAlloc32(0, size))) fix_info=GlobalLock32(hFix);
 663     if (fix_info) {
 664       BYTE pix;
 665
 666       memcpy(fix_info, info, size);
 667       pix = *((LPBYTE)info+DIB_BitmapInfoSize(info, DIB_RGB_COLORS));
 668       DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
 669       if ((hdc = GetDC32(0)) != 0) {
 670         if (loadflags & LR_CREATEDIBSECTION)
 671           hbitmap = CreateDIBSection32(hdc, fix_info, DIB_RGB_COLORS, NULL, 0, 0);
 672         else {
 673           char *bits = (char *)info + size;;
 674           hbitmap = CreateDIBitmap32( hdc, &fix_info->bmiHeader, CBM_INIT,
 675                                       bits, fix_info, DIB_RGB_COLORS );
 676         }
 677         ReleaseDC32( 0, hdc );
 678       }
 679       GlobalUnlock32(hFix);
 680       GlobalFree32(hFix);
 681     }
 682     if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
 683     return hbitmap;
 684 }
 685
 686
 687 /******************************************************************************
 688  * LoadBitmap32W [USER32.358]  Loads bitmap from the executable file
 689  *
 690  * RETURNS
 691  *    Success: Handle to specified bitmap
 692  *    Failure: NULL
 693  */
 694 HBITMAP32 WINAPI LoadBitmap32W(
 695     HINSTANCE32 instance, /* [in] Handle to application instance */
 696     LPCWSTR name)         /* [in] Address of bitmap resource name */
 697 {
 698     return BITMAP_LoadBitmap32W(instance, name, 0);
 699 }
 700
 701
 702 /**********************************************************************
 703  *          LoadBitmap32A   (USER32.357)
 704  */
 705 HBITMAP32 WINAPI LoadBitmap32A( HINSTANCE32 instance, LPCSTR name )
 706 {
 707     HBITMAP32 res;
 708     if (!HIWORD(name)) res = LoadBitmap32W( instance, (LPWSTR)name );
 709     else
 710     {
 711         LPWSTR uni = HEAP_strdupAtoW( GetProcessHeap(), 0, name );
 712         res = LoadBitmap32W( instance, uni );
 713         HeapFree( GetProcessHeap(), 0, uni );
 714     }
 715     return res;
 716 }
 717
 718
 719 /***********************************************************************
 720  *           BITMAP_DeleteObject
 721  */
 722 BOOL32 BITMAP_DeleteObject( HBITMAP16 hbitmap, BITMAPOBJ * bmp )
 723 {
 724     if( bmp->DDBitmap ) {
 725         if( bmp->DDBitmap->funcs->pDeleteObject )
 726             bmp->DDBitmap->funcs->pDeleteObject( hbitmap );
 727     }
 728
 729     if( bmp->bitmap.bmBits )
 730         HeapFree( GetProcessHeap(), 0, bmp->bitmap.bmBits );
 731
 732     DIB_DeleteDIBSection( bmp );
 733
 734     return GDI_FreeObject( hbitmap );
 735 }
 736
 737
 738 /***********************************************************************
 739  *           BITMAP_GetObject16
 740  */
 741 INT16 BITMAP_GetObject16( BITMAPOBJ * bmp, INT16 count, LPVOID buffer )
 742 {
 743     if (bmp->dib)
 744     {
 745         if ( count <= sizeof(BITMAP16) )
 746         {
 747             BITMAP32 *bmp32 = &bmp->dib->dibSection.dsBm;
 748             BITMAP16 bmp16;
 749             bmp16.bmType       = bmp32->bmType;
 750             bmp16.bmWidth      = bmp32->bmWidth;
 751             bmp16.bmHeight     = bmp32->bmHeight;
 752             bmp16.bmWidthBytes = bmp32->bmWidthBytes;
 753             bmp16.bmPlanes     = bmp32->bmPlanes;
 754             bmp16.bmBitsPixel  = bmp32->bmBitsPixel;
 755             bmp16.bmBits       = (SEGPTR)0;
 756             memcpy( buffer, &bmp16, count );
 757             return count;
 758         }
 759         else
 760         {
 761             FIXME(bitmap, "not implemented for DIBs: count %d\n", count);
 762             return 0;
 763         }
 764     }
 765     else
 766     {
 767         BITMAP16 bmp16;
 768         bmp16.bmType       = bmp->bitmap.bmType;
 769         bmp16.bmWidth      = bmp->bitmap.bmWidth;
 770         bmp16.bmHeight     = bmp->bitmap.bmHeight;
 771         bmp16.bmWidthBytes = bmp->bitmap.bmWidthBytes;
 772         bmp16.bmPlanes     = bmp->bitmap.bmPlanes;
 773         bmp16.bmBitsPixel  = bmp->bitmap.bmBitsPixel;
 774         bmp16.bmBits       = (SEGPTR)0;
 775         if (count > sizeof(bmp16)) count = sizeof(bmp16);
 776         memcpy( buffer, &bmp16, count );
 777         return count;
 778     }
 779 }
 780
 781
 782 /***********************************************************************
 783  *           BITMAP_GetObject32
 784  */
 785 INT32 BITMAP_GetObject32( BITMAPOBJ * bmp, INT32 count, LPVOID buffer )
 786 {
 787     if (bmp->dib)
 788     {
 789         if (count < sizeof(DIBSECTION))
 790         {
 791             if (count > sizeof(BITMAP32)) count = sizeof(BITMAP32);
 792         }
 793         else
 794         {
 795             if (count > sizeof(DIBSECTION)) count = sizeof(DIBSECTION);
 796         }
 797
 798         memcpy( buffer, &bmp->dib->dibSection, count );
 799         return count;
 800     }
 801     else
 802     {
 803         if (count > sizeof(BITMAP32)) count = sizeof(BITMAP32);
 804         memcpy( buffer, &bmp->bitmap, count );
 805         return count;
 806     }
 807 }
 808
 809
 810 /***********************************************************************
 811  *           CreateDiscardableBitmap16    (GDI.156)
 812  */
 813 HBITMAP16 WINAPI CreateDiscardableBitmap16( HDC16 hdc, INT16 width,
 814                                             INT16 height )
 815 {
 816     return CreateCompatibleBitmap16( hdc, width, height );
 817 }
 818
 819
 820 /******************************************************************************
 821  * CreateDiscardableBitmap32 [GDI32.38]  Creates a discardable bitmap
 822  *
 823  * RETURNS
 824  *    Success: Handle to bitmap
 825  *    Failure: NULL
 826  */
 827 HBITMAP32 WINAPI CreateDiscardableBitmap32(
 828     HDC32 hdc,    /* [in] Handle to device context */
 829     INT32 width,  /* [in] Bitmap width */
 830     INT32 height) /* [in] Bitmap height */
 831 {
 832     return CreateCompatibleBitmap32( hdc, width, height );
 833 }
 834
 835
 836 /***********************************************************************
 837  *           GetBitmapDimensionEx16    (GDI.468)
 838  *
 839  * NOTES
 840  *    Can this call GetBitmapDimensionEx32?
 841  */
 842 BOOL16 WINAPI GetBitmapDimensionEx16( HBITMAP16 hbitmap, LPSIZE16 size )
 843 {
 844     BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
 845     if (!bmp) return FALSE;
 846     CONV_SIZE32TO16( &bmp->size, size );
 847     GDI_HEAP_UNLOCK( hbitmap );
 848     return TRUE;
 849 }
 850
 851
 852 /******************************************************************************
 853  * GetBitmapDimensionEx32 [GDI32.144]  Retrieves dimensions of a bitmap
 854  *
 855  * RETURNS
 856  *    Success: TRUE
 857  *    Failure: FALSE
 858  */
 859 BOOL32 WINAPI GetBitmapDimensionEx32(
 860     HBITMAP32 hbitmap, /* [in]  Handle to bitmap */
 861     LPSIZE32 size)     /* [out] Address of struct receiving dimensions */
 862 {
 863     BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
 864     if (!bmp) return FALSE;
 865     *size = bmp->size;
 866     GDI_HEAP_UNLOCK( hbitmap );
 867     return TRUE;
 868 }
 869
 870
 871 /***********************************************************************
 872  *           GetBitmapDimension    (GDI.162)
 873  */
 874 DWORD WINAPI GetBitmapDimension( HBITMAP16 hbitmap )
 875 {
 876     SIZE16 size;
 877     if (!GetBitmapDimensionEx16( hbitmap, &size )) return 0;
 878     return MAKELONG( size.cx, size.cy );
 879 }
 880
 881
 882 /***********************************************************************
 883  *           SetBitmapDimensionEx16    (GDI.478)
 884  */
 885 BOOL16 WINAPI SetBitmapDimensionEx16( HBITMAP16 hbitmap, INT16 x, INT16 y,
 886                                       LPSIZE16 prevSize )
 887 {
 888     BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
 889     if (!bmp) return FALSE;
 890     if (prevSize) CONV_SIZE32TO16( &bmp->size, prevSize );
 891     bmp->size.cx = x;
 892     bmp->size.cy = y;
 893     GDI_HEAP_UNLOCK( hbitmap );
 894     return TRUE;
 895 }
 896
 897
 898 /******************************************************************************
 899  * SetBitmapDimensionEx32 [GDI32.304]  Assignes dimensions to a bitmap
 900  *
 901  * RETURNS
 902  *    Success: TRUE
 903  *    Failure: FALSE
 904  */
 905 BOOL32 WINAPI SetBitmapDimensionEx32(
 906     HBITMAP32 hbitmap, /* [in]  Handle to bitmap */
 907     INT32 x,           /* [in]  Bitmap width */
 908     INT32 y,           /* [in]  Bitmap height */
 909     LPSIZE32 prevSize) /* [out] Address of structure for orig dims */
 910 {
 911     BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
 912     if (!bmp) return FALSE;
 913     if (prevSize) *prevSize = bmp->size;
 914     bmp->size.cx = x;
 915     bmp->size.cy = y;
 916     GDI_HEAP_UNLOCK( hbitmap );
 917     return TRUE;
 918 }
 919
 920
 921 /***********************************************************************
 922  *           SetBitmapDimension    (GDI.163)
 923  */
 924 DWORD WINAPI SetBitmapDimension( HBITMAP16 hbitmap, INT16 x, INT16 y )
 925 {
 926     SIZE16 size;
 927     if (!SetBitmapDimensionEx16( hbitmap, x, y, &size )) return 0;
 928     return MAKELONG( size.cx, size.cy );
 929 }
 930