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push 553a83299288f61678d62ade87a3a2a5489a8ad8
[wine/hacks.git] / dlls / user32 / cursoricon.c
blob2af3798cc6100bf8d5f45129b9fe3374009b57f3
1 /*
2 * Cursor and icon support
3 *
4 * Copyright 1995 Alexandre Julliard
5 * 1996 Martin Von Loewis
6 * 1997 Alex Korobka
7 * 1998 Turchanov Sergey
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 */
23
24 /*
25 * Theory:
26 *
27 * Cursors and icons are stored in a global heap block, with the
28 * following layout:
29 *
30 * CURSORICONINFO info;
31 * BYTE[] ANDbits;
32 * BYTE[] XORbits;
33 *
34 * The bits structures are in the format of a device-dependent bitmap.
35 *
36 * This layout is very sub-optimal, as the bitmap bits are stored in
37 * the X client instead of in the server like other bitmaps; however,
38 * some programs (notably Paint Brush) expect to be able to manipulate
39 * the bits directly :-(
40 */
41
42 #include "config.h"
43 #include "wine/port.h"
44
45 #include <stdarg.h>
46 #include <string.h>
47 #include <stdlib.h>
48
49 #include "windef.h"
50 #include "winbase.h"
51 #include "wingdi.h"
52 #include "winerror.h"
53 #include "wine/winbase16.h"
54 #include "wine/winuser16.h"
55 #include "wine/exception.h"
56 #include "wine/debug.h"
57 #include "user_private.h"
58
59 WINE_DEFAULT_DEBUG_CHANNEL(cursor);
60 WINE_DECLARE_DEBUG_CHANNEL(icon);
61 WINE_DECLARE_DEBUG_CHANNEL(resource);
62
63 #include "pshpack1.h"
64
65 typedef struct {
66 BYTE bWidth;
67 BYTE bHeight;
68 BYTE bColorCount;
69 BYTE bReserved;
70 WORD xHotspot;
71 WORD yHotspot;
72 DWORD dwDIBSize;
73 DWORD dwDIBOffset;
74 } CURSORICONFILEDIRENTRY;
75
76 typedef struct
77 {
78 WORD idReserved;
79 WORD idType;
80 WORD idCount;
81 CURSORICONFILEDIRENTRY idEntries[1];
82 } CURSORICONFILEDIR;
83
84 #include "poppack.h"
85
86 #define CID_RESOURCE 0x0001
87 #define CID_WIN32 0x0004
88 #define CID_NONSHARED 0x0008
89
90 static RECT CURSOR_ClipRect; /* Cursor clipping rect */
91
92 static HDC screen_dc;
93
94 static const WCHAR DISPLAYW[] = {'D','I','S','P','L','A','Y',0};
95
96 /**********************************************************************
97 * ICONCACHE for cursors/icons loaded with LR_SHARED.
98 *
99 * FIXME: This should not be allocated on the system heap, but on a
100 * subsystem-global heap (i.e. one for all Win16 processes,
101 * and one for each Win32 process).
102 */
103 typedef struct tagICONCACHE
104 {
105 struct tagICONCACHE *next;
106
107 HMODULE hModule;
108 HRSRC hRsrc;
109 HRSRC hGroupRsrc;
110 HICON hIcon;
111
112 INT count;
113
114 } ICONCACHE;
115
116 static ICONCACHE *IconAnchor = NULL;
117
118 static CRITICAL_SECTION IconCrst;
119 static CRITICAL_SECTION_DEBUG critsect_debug =
120 {
121 0, 0, &IconCrst,
122 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
123 0, 0, { (DWORD_PTR)(__FILE__ ": IconCrst") }
124 };
125 static CRITICAL_SECTION IconCrst = { &critsect_debug, -1, 0, 0, 0, 0 };
126
127 static const WORD ICON_HOTSPOT = 0x4242;
128
129
130 /***********************************************************************
131 * map_fileW
132 *
133 * Helper function to map a file to memory:
134 * name - file name
135 * [RETURN] ptr - pointer to mapped file
136 * [RETURN] filesize - pointer size of file to be stored if not NULL
137 */
138 static void *map_fileW( LPCWSTR name, LPDWORD filesize )
139 {
140 HANDLE hFile, hMapping;
141 LPVOID ptr = NULL;
142
143 hFile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL,
144 OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, 0 );
145 if (hFile != INVALID_HANDLE_VALUE)
146 {
147 hMapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
148 if (hMapping)
149 {
150 ptr = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 );
151 CloseHandle( hMapping );
152 if (filesize)
153 *filesize = GetFileSize( hFile, NULL );
154 }
155 CloseHandle( hFile );
156 }
157 return ptr;
158 }
159
160
161 /***********************************************************************
162 * get_bitmap_width_bytes
163 *
164 * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
165 * data.
166 */
167 static int get_bitmap_width_bytes( int width, int bpp )
168 {
169 switch(bpp)
170 {
171 case 1:
172 return 2 * ((width+15) / 16);
173 case 4:
174 return 2 * ((width+3) / 4);
175 case 24:
176 width *= 3;
177 /* fall through */
178 case 8:
179 return width + (width & 1);
180 case 16:
181 case 15:
182 return width * 2;
183 case 32:
184 return width * 4;
185 default:
186 WARN("Unknown depth %d, please report.\n", bpp );
187 }
188 return -1;
189 }
190
191
192 /***********************************************************************
193 * get_dib_width_bytes
194 *
195 * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
196 */
197 static int get_dib_width_bytes( int width, int depth )
198 {
199 int words;
200
201 switch(depth)
202 {
203 case 1: words = (width + 31) / 32; break;
204 case 4: words = (width + 7) / 8; break;
205 case 8: words = (width + 3) / 4; break;
206 case 15:
207 case 16: words = (width + 1) / 2; break;
208 case 24: words = (width * 3 + 3)/4; break;
209 default:
210 WARN("(%d): Unsupported depth\n", depth );
211 /* fall through */
212 case 32:
213 words = width;
214 }
215 return 4 * words;
216 }
217
218
219 /***********************************************************************
220 * bitmap_info_size
221 *
222 * Return the size of the bitmap info structure including color table.
223 */
224 static int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
225 {
226 int colors, masks = 0;
227
228 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
229 {
230 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
231 colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
232 return sizeof(BITMAPCOREHEADER) + colors *
233 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
234 }
235 else /* assume BITMAPINFOHEADER */
236 {
237 colors = info->bmiHeader.biClrUsed;
238 if (colors > 256) /* buffer overflow otherwise */
239 colors = 256;
240 if (!colors && (info->bmiHeader.biBitCount <= 8))
241 colors = 1 << info->bmiHeader.biBitCount;
242 if (info->bmiHeader.biCompression == BI_BITFIELDS) masks = 3;
243 return sizeof(BITMAPINFOHEADER) + masks * sizeof(DWORD) + colors *
244 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
245 }
246 }
247
248
249 /***********************************************************************
250 * is_dib_monochrome
251 *
252 * Returns whether a DIB can be converted to a monochrome DDB.
253 *
254 * A DIB can be converted if its color table contains only black and
255 * white. Black must be the first color in the color table.
256 *
257 * Note : If the first color in the color table is white followed by
258 * black, we can't convert it to a monochrome DDB with
259 * SetDIBits, because black and white would be inverted.
260 */
261 static BOOL is_dib_monochrome( const BITMAPINFO* info )
262 {
263 if (info->bmiHeader.biBitCount != 1) return FALSE;
264
265 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
266 {
267 const RGBTRIPLE *rgb = ((const BITMAPCOREINFO*)info)->bmciColors;
268
269 /* Check if the first color is black */
270 if ((rgb->rgbtRed == 0) && (rgb->rgbtGreen == 0) && (rgb->rgbtBlue == 0))
271 {
272 rgb++;
273
274 /* Check if the second color is white */
275 return ((rgb->rgbtRed == 0xff) && (rgb->rgbtGreen == 0xff)
276 && (rgb->rgbtBlue == 0xff));
277 }
278 else return FALSE;
279 }
280 else /* assume BITMAPINFOHEADER */
281 {
282 const RGBQUAD *rgb = info->bmiColors;
283
284 /* Check if the first color is black */
285 if ((rgb->rgbRed == 0) && (rgb->rgbGreen == 0) &&
286 (rgb->rgbBlue == 0) && (rgb->rgbReserved == 0))
287 {
288 rgb++;
289
290 /* Check if the second color is white */
291 return ((rgb->rgbRed == 0xff) && (rgb->rgbGreen == 0xff)
292 && (rgb->rgbBlue == 0xff) && (rgb->rgbReserved == 0));
293 }
294 else return FALSE;
295 }
296 }
297
298 /***********************************************************************
299 * DIB_GetBitmapInfo
300 *
301 * Get the info from a bitmap header.
302 * Return 1 for INFOHEADER, 0 for COREHEADER,
303 * 4 for V4HEADER, 5 for V5HEADER, -1 for error.
304 */
305 static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
306 LONG *height, WORD *bpp, DWORD *compr )
307 {
308 if (header->biSize == sizeof(BITMAPINFOHEADER))
309 {
310 *width = header->biWidth;
311 *height = header->biHeight;
312 *bpp = header->biBitCount;
313 *compr = header->biCompression;
314 return 1;
315 }
316 if (header->biSize == sizeof(BITMAPCOREHEADER))
317 {
318 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header;
319 *width = core->bcWidth;
320 *height = core->bcHeight;
321 *bpp = core->bcBitCount;
322 *compr = 0;
323 return 0;
324 }
325 if (header->biSize == sizeof(BITMAPV4HEADER))
326 {
327 const BITMAPV4HEADER *v4hdr = (const BITMAPV4HEADER *)header;
328 *width = v4hdr->bV4Width;
329 *height = v4hdr->bV4Height;
330 *bpp = v4hdr->bV4BitCount;
331 *compr = v4hdr->bV4V4Compression;
332 return 4;
333 }
334 if (header->biSize == sizeof(BITMAPV5HEADER))
335 {
336 const BITMAPV5HEADER *v5hdr = (const BITMAPV5HEADER *)header;
337 *width = v5hdr->bV5Width;
338 *height = v5hdr->bV5Height;
339 *bpp = v5hdr->bV5BitCount;
340 *compr = v5hdr->bV5Compression;
341 return 5;
342 }
343 ERR("(%d): unknown/wrong size for header\n", header->biSize );
344 return -1;
345 }
346
347 /**********************************************************************
348 * CURSORICON_FindSharedIcon
349 */
350 static HICON CURSORICON_FindSharedIcon( HMODULE hModule, HRSRC hRsrc )
351 {
352 HICON hIcon = 0;
353 ICONCACHE *ptr;
354
355 EnterCriticalSection( &IconCrst );
356
357 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
358 if ( ptr->hModule == hModule && ptr->hRsrc == hRsrc )
359 {
360 ptr->count++;
361 hIcon = ptr->hIcon;
362 break;
363 }
364
365 LeaveCriticalSection( &IconCrst );
366
367 return hIcon;
368 }
369
370 /*************************************************************************
371 * CURSORICON_FindCache
372 *
373 * Given a handle, find the corresponding cache element
374 *
375 * PARAMS
376 * Handle [I] handle to an Image
377 *
378 * RETURNS
379 * Success: The cache entry
380 * Failure: NULL
381 *
382 */
383 static ICONCACHE* CURSORICON_FindCache(HICON hIcon)
384 {
385 ICONCACHE *ptr;
386 ICONCACHE *pRet=NULL;
387 BOOL IsFound = FALSE;
388
389 EnterCriticalSection( &IconCrst );
390
391 for (ptr = IconAnchor; ptr != NULL && !IsFound; ptr = ptr->next)
392 {
393 if ( hIcon == ptr->hIcon )
394 {
395 IsFound = TRUE;
396 pRet = ptr;
397 }
398 }
399
400 LeaveCriticalSection( &IconCrst );
401
402 return pRet;
403 }
404
405 /**********************************************************************
406 * CURSORICON_AddSharedIcon
407 */
408 static void CURSORICON_AddSharedIcon( HMODULE hModule, HRSRC hRsrc, HRSRC hGroupRsrc, HICON hIcon )
409 {
410 ICONCACHE *ptr = HeapAlloc( GetProcessHeap(), 0, sizeof(ICONCACHE) );
411 if ( !ptr ) return;
412
413 ptr->hModule = hModule;
414 ptr->hRsrc = hRsrc;
415 ptr->hIcon = hIcon;
416 ptr->hGroupRsrc = hGroupRsrc;
417 ptr->count = 1;
418
419 EnterCriticalSection( &IconCrst );
420 ptr->next = IconAnchor;
421 IconAnchor = ptr;
422 LeaveCriticalSection( &IconCrst );
423 }
424
425 /**********************************************************************
426 * CURSORICON_DelSharedIcon
427 */
428 static INT CURSORICON_DelSharedIcon( HICON hIcon )
429 {
430 INT count = -1;
431 ICONCACHE *ptr;
432
433 EnterCriticalSection( &IconCrst );
434
435 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
436 if ( ptr->hIcon == hIcon )
437 {
438 if ( ptr->count > 0 ) ptr->count--;
439 count = ptr->count;
440 break;
441 }
442
443 LeaveCriticalSection( &IconCrst );
444
445 return count;
446 }
447
448 /**********************************************************************
449 * CURSORICON_FreeModuleIcons
450 */
451 void CURSORICON_FreeModuleIcons( HMODULE16 hMod16 )
452 {
453 ICONCACHE **ptr = &IconAnchor;
454 HMODULE hModule = HMODULE_32(GetExePtr( hMod16 ));
455
456 EnterCriticalSection( &IconCrst );
457
458 while ( *ptr )
459 {
460 if ( (*ptr)->hModule == hModule )
461 {
462 ICONCACHE *freePtr = *ptr;
463 *ptr = freePtr->next;
464
465 GlobalFree16(HICON_16(freePtr->hIcon));
466 HeapFree( GetProcessHeap(), 0, freePtr );
467 continue;
468 }
469 ptr = &(*ptr)->next;
470 }
471
472 LeaveCriticalSection( &IconCrst );
473 }
474
475 /*
476 * The following macro functions account for the irregularities of
477 * accessing cursor and icon resources in files and resource entries.
478 */
479 typedef BOOL (*fnGetCIEntry)( LPVOID dir, int n,
480 int *width, int *height, int *bits );
481
482 /**********************************************************************
483 * CURSORICON_FindBestIcon
484 *
485 * Find the icon closest to the requested size and number of colors.
486 */
487 static int CURSORICON_FindBestIcon( LPVOID dir, fnGetCIEntry get_entry,
488 int width, int height, int colors )
489 {
490 int i, cx, cy, bits, bestEntry = -1;
491 UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
492 UINT iTempXDiff, iTempYDiff, iTempColorDiff;
493
494 /* Find Best Fit */
495 iTotalDiff = 0xFFFFFFFF;
496 iColorDiff = 0xFFFFFFFF;
497 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
498 {
499 iTempXDiff = abs(width - cx);
500 iTempYDiff = abs(height - cy);
501
502 if(iTotalDiff > (iTempXDiff + iTempYDiff))
503 {
504 iXDiff = iTempXDiff;
505 iYDiff = iTempYDiff;
506 iTotalDiff = iXDiff + iYDiff;
507 }
508 }
509
510 /* Find Best Colors for Best Fit */
511 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
512 {
513 if(abs(width - cx) == iXDiff && abs(height - cy) == iYDiff)
514 {
515 iTempColorDiff = abs(colors - (1<<bits));
516 if(iColorDiff > iTempColorDiff)
517 {
518 bestEntry = i;
519 iColorDiff = iTempColorDiff;
520 }
521 }
522 }
523
524 return bestEntry;
525 }
526
527 static BOOL CURSORICON_GetResIconEntry( LPVOID dir, int n,
528 int *width, int *height, int *bits )
529 {
530 CURSORICONDIR *resdir = dir;
531 ICONRESDIR *icon;
532
533 if ( resdir->idCount <= n )
534 return FALSE;
535 icon = &resdir->idEntries[n].ResInfo.icon;
536 *width = icon->bWidth;
537 *height = icon->bHeight;
538 *bits = resdir->idEntries[n].wBitCount;
539 return TRUE;
540 }
541
542 /**********************************************************************
543 * CURSORICON_FindBestCursor
544 *
545 * Find the cursor closest to the requested size.
546 * FIXME: parameter 'color' ignored and entries with more than 1 bpp
547 * ignored too
548 */
549 static int CURSORICON_FindBestCursor( LPVOID dir, fnGetCIEntry get_entry,
550 int width, int height, int color )
551 {
552 int i, maxwidth, maxheight, cx, cy, bits, bestEntry = -1;
553
554 /* Double height to account for AND and XOR masks */
555
556 height *= 2;
557
558 /* First find the largest one smaller than or equal to the requested size*/
559
560 maxwidth = maxheight = 0;
561 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
562 {
563 if ((cx <= width) && (cy <= height) &&
564 (cx > maxwidth) && (cy > maxheight) &&
565 (bits == 1))
566 {
567 bestEntry = i;
568 maxwidth = cx;
569 maxheight = cy;
570 }
571 }
572 if (bestEntry != -1) return bestEntry;
573
574 /* Now find the smallest one larger than the requested size */
575
576 maxwidth = maxheight = 255;
577 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
578 {
579 if (((cx < maxwidth) && (cy < maxheight) && (bits == 1)) ||
580 (bestEntry==-1))
581 {
582 bestEntry = i;
583 maxwidth = cx;
584 maxheight = cy;
585 }
586 }
587
588 return bestEntry;
589 }
590
591 static BOOL CURSORICON_GetResCursorEntry( LPVOID dir, int n,
592 int *width, int *height, int *bits )
593 {
594 CURSORICONDIR *resdir = dir;
595 CURSORDIR *cursor;
596
597 if ( resdir->idCount <= n )
598 return FALSE;
599 cursor = &resdir->idEntries[n].ResInfo.cursor;
600 *width = cursor->wWidth;
601 *height = cursor->wHeight;
602 *bits = resdir->idEntries[n].wBitCount;
603 return TRUE;
604 }
605
606 static CURSORICONDIRENTRY *CURSORICON_FindBestIconRes( CURSORICONDIR * dir,
607 int width, int height, int colors )
608 {
609 int n;
610
611 n = CURSORICON_FindBestIcon( dir, CURSORICON_GetResIconEntry,
612 width, height, colors );
613 if ( n < 0 )
614 return NULL;
615 return &dir->idEntries[n];
616 }
617
618 static CURSORICONDIRENTRY *CURSORICON_FindBestCursorRes( CURSORICONDIR *dir,
619 int width, int height, int color )
620 {
621 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetResCursorEntry,
622 width, height, color );
623 if ( n < 0 )
624 return NULL;
625 return &dir->idEntries[n];
626 }
627
628 static BOOL CURSORICON_GetFileEntry( LPVOID dir, int n,
629 int *width, int *height, int *bits )
630 {
631 CURSORICONFILEDIR *filedir = dir;
632 CURSORICONFILEDIRENTRY *entry;
633
634 if ( filedir->idCount <= n )
635 return FALSE;
636 entry = &filedir->idEntries[n];
637 *width = entry->bWidth;
638 *height = entry->bHeight;
639 *bits = entry->bColorCount;
640 return TRUE;
641 }
642
643 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestCursorFile( CURSORICONFILEDIR *dir,
644 int width, int height, int color )
645 {
646 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetFileEntry,
647 width, height, color );
648 if ( n < 0 )
649 return NULL;
650 return &dir->idEntries[n];
651 }
652
653 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestIconFile( CURSORICONFILEDIR *dir,
654 int width, int height, int color )
655 {
656 int n = CURSORICON_FindBestIcon( dir, CURSORICON_GetFileEntry,
657 width, height, color );
658 if ( n < 0 )
659 return NULL;
660 return &dir->idEntries[n];
661 }
662
663 static HICON CURSORICON_CreateIconFromBMI( BITMAPINFO *bmi,
664 POINT16 hotspot, BOOL bIcon,
665 DWORD dwVersion,
666 INT width, INT height,
667 UINT cFlag )
668 {
669 HGLOBAL16 hObj;
670 static HDC hdcMem;
671 int sizeAnd, sizeXor;
672 HBITMAP hAndBits = 0, hXorBits = 0; /* error condition for later */
673 BITMAP bmpXor, bmpAnd;
674 BOOL DoStretch;
675 INT size;
676
677 if (dwVersion == 0x00020000)
678 {
679 FIXME_(cursor)("\t2.xx resources are not supported\n");
680 return 0;
681 }
682
683 /* Check bitmap header */
684
685 if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) &&
686 (bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) ||
687 bmi->bmiHeader.biCompression != BI_RGB) )
688 {
689 WARN_(cursor)("\tinvalid resource bitmap header.\n");
690 return 0;
691 }
692
693 size = bitmap_info_size( bmi, DIB_RGB_COLORS );
694
695 if (!width) width = bmi->bmiHeader.biWidth;
696 if (!height) height = bmi->bmiHeader.biHeight/2;
697 DoStretch = (bmi->bmiHeader.biHeight/2 != height) ||
698 (bmi->bmiHeader.biWidth != width);
699
700 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
701 if (screen_dc)
702 {
703 BITMAPINFO* pInfo;
704
705 /* Make sure we have room for the monochrome bitmap later on.
706 * Note that BITMAPINFOINFO and BITMAPCOREHEADER are the same
707 * up to and including the biBitCount. In-memory icon resource
708 * format is as follows:
709 *
710 * BITMAPINFOHEADER icHeader // DIB header
711 * RGBQUAD icColors[] // Color table
712 * BYTE icXOR[] // DIB bits for XOR mask
713 * BYTE icAND[] // DIB bits for AND mask
714 */
715
716 if ((pInfo = HeapAlloc( GetProcessHeap(), 0,
717 max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD)))))
718 {
719 memcpy( pInfo, bmi, size );
720 pInfo->bmiHeader.biHeight /= 2;
721
722 /* Create the XOR bitmap */
723
724 if (DoStretch) {
725 if(bIcon)
726 {
727 hXorBits = CreateCompatibleBitmap(screen_dc, width, height);
728 }
729 else
730 {
731 hXorBits = CreateBitmap(width, height, 1, 1, NULL);
732 }
733 if(hXorBits)
734 {
735 HBITMAP hOld;
736 BOOL res = FALSE;
737
738 if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
739 if (hdcMem) {
740 hOld = SelectObject(hdcMem, hXorBits);
741 res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
742 bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight/2,
743 (char*)bmi + size, pInfo, DIB_RGB_COLORS, SRCCOPY);
744 SelectObject(hdcMem, hOld);
745 }
746 if (!res) { DeleteObject(hXorBits); hXorBits = 0; }
747 }
748 } else {
749 if (is_dib_monochrome(bmi)) {
750 hXorBits = CreateBitmap(width, height, 1, 1, NULL);
751 SetDIBits(screen_dc, hXorBits, 0, height,
752 (char*)bmi + size, pInfo, DIB_RGB_COLORS);
753 }
754 else
755 hXorBits = CreateDIBitmap(screen_dc, &pInfo->bmiHeader,
756 CBM_INIT, (char*)bmi + size, pInfo, DIB_RGB_COLORS);
757 }
758
759 if( hXorBits )
760 {
761 char* xbits = (char *)bmi + size +
762 get_dib_width_bytes( bmi->bmiHeader.biWidth,
763 bmi->bmiHeader.biBitCount ) * abs( bmi->bmiHeader.biHeight ) / 2;
764
765 pInfo->bmiHeader.biBitCount = 1;
766 if (pInfo->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
767 {
768 RGBQUAD *rgb = pInfo->bmiColors;
769
770 pInfo->bmiHeader.biClrUsed = pInfo->bmiHeader.biClrImportant = 2;
771 rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
772 rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
773 rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
774 }
775 else
776 {
777 RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)pInfo) + 1);
778
779 rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
780 rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
781 }
782
783 /* Create the AND bitmap */
784
785 if (DoStretch) {
786 if ((hAndBits = CreateBitmap(width, height, 1, 1, NULL))) {
787 HBITMAP hOld;
788 BOOL res = FALSE;
789
790 if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
791 if (hdcMem) {
792 hOld = SelectObject(hdcMem, hAndBits);
793 res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
794 pInfo->bmiHeader.biWidth, pInfo->bmiHeader.biHeight,
795 xbits, pInfo, DIB_RGB_COLORS, SRCCOPY);
796 SelectObject(hdcMem, hOld);
797 }
798 if (!res) { DeleteObject(hAndBits); hAndBits = 0; }
799 }
800 } else {
801 hAndBits = CreateBitmap(width, height, 1, 1, NULL);
802
803 if (hAndBits) SetDIBits(screen_dc, hAndBits, 0, height,
804 xbits, pInfo, DIB_RGB_COLORS);
805
806 }
807 if( !hAndBits ) DeleteObject( hXorBits );
808 }
809 HeapFree( GetProcessHeap(), 0, pInfo );
810 }
811 }
812
813 if( !hXorBits || !hAndBits )
814 {
815 WARN_(cursor)("\tunable to create an icon bitmap.\n");
816 return 0;
817 }
818
819 /* Now create the CURSORICONINFO structure */
820 GetObjectA( hXorBits, sizeof(bmpXor), &bmpXor );
821 GetObjectA( hAndBits, sizeof(bmpAnd), &bmpAnd );
822 sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes;
823 sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
824
825 hObj = GlobalAlloc16( GMEM_MOVEABLE,
826 sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
827 if (hObj)
828 {
829 CURSORICONINFO *info;
830
831 info = (CURSORICONINFO *)GlobalLock16( hObj );
832 info->ptHotSpot.x = hotspot.x;
833 info->ptHotSpot.y = hotspot.y;
834 info->nWidth = bmpXor.bmWidth;
835 info->nHeight = bmpXor.bmHeight;
836 info->nWidthBytes = bmpXor.bmWidthBytes;
837 info->bPlanes = bmpXor.bmPlanes;
838 info->bBitsPerPixel = bmpXor.bmBitsPixel;
839
840 /* Transfer the bitmap bits to the CURSORICONINFO structure */
841
842 GetBitmapBits( hAndBits, sizeAnd, (char *)(info + 1) );
843 GetBitmapBits( hXorBits, sizeXor, (char *)(info + 1) + sizeAnd );
844 GlobalUnlock16( hObj );
845 }
846
847 DeleteObject( hAndBits );
848 DeleteObject( hXorBits );
849 return HICON_32(hObj);
850 }
851
852
853 /**********************************************************************
854 * CreateIconFromResourceEx (USER32.@)
855 *
856 * FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
857 * with cbSize parameter as well.
858 */
859 HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
860 BOOL bIcon, DWORD dwVersion,
861 INT width, INT height,
862 UINT cFlag )
863 {
864 POINT16 hotspot;
865 BITMAPINFO *bmi;
866
867 hotspot.x = ICON_HOTSPOT;
868 hotspot.y = ICON_HOTSPOT;
869
870 TRACE_(cursor)("%p (%u bytes), ver %08x, %ix%i %s %s\n",
871 bits, cbSize, dwVersion, width, height,
872 bIcon ? "icon" : "cursor", (cFlag & LR_MONOCHROME) ? "mono" : "" );
873
874 if (bIcon)
875 bmi = (BITMAPINFO *)bits;
876 else /* get the hotspot */
877 {
878 POINT16 *pt = (POINT16 *)bits;
879 hotspot = *pt;
880 bmi = (BITMAPINFO *)(pt + 1);
881 }
882
883 return CURSORICON_CreateIconFromBMI( bmi, hotspot, bIcon, dwVersion,
884 width, height, cFlag );
885 }
886
887
888 /**********************************************************************
889 * CreateIconFromResource (USER32.@)
890 */
891 HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize,
892 BOOL bIcon, DWORD dwVersion)
893 {
894 return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
895 }
896
897
898 static HICON CURSORICON_LoadFromFile( LPCWSTR filename,
899 INT width, INT height, INT colors,
900 BOOL fCursor, UINT loadflags)
901 {
902 CURSORICONFILEDIRENTRY *entry;
903 CURSORICONFILEDIR *dir;
904 DWORD filesize = 0;
905 HICON hIcon = 0;
906 LPBYTE bits;
907 POINT16 hotspot;
908
909 TRACE("loading %s\n", debugstr_w( filename ));
910
911 bits = map_fileW( filename, &filesize );
912 if (!bits)
913 return hIcon;
914
915 /* Check for .ani. */
916 if (memcmp( bits, "RIFF", 4 ) == 0)
917 {
918 FIXME("No support for .ani cursors.\n");
919 goto end;
920 }
921
922 dir = (CURSORICONFILEDIR*) bits;
923 if ( filesize < sizeof(*dir) )
924 goto end;
925
926 if ( filesize < (sizeof(*dir) + sizeof(dir->idEntries[0])*(dir->idCount-1)) )
927 goto end;
928
929 if ( fCursor )
930 entry = CURSORICON_FindBestCursorFile( dir, width, height, colors );
931 else
932 entry = CURSORICON_FindBestIconFile( dir, width, height, colors );
933
934 if ( !entry )
935 goto end;
936
937 /* check that we don't run off the end of the file */
938 if ( entry->dwDIBOffset > filesize )
939 goto end;
940 if ( entry->dwDIBOffset + entry->dwDIBSize > filesize )
941 goto end;
942
943 hotspot.x = entry->xHotspot;
944 hotspot.y = entry->yHotspot;
945 hIcon = CURSORICON_CreateIconFromBMI( (BITMAPINFO *)&bits[entry->dwDIBOffset],
946 hotspot, !fCursor, 0x00030000,
947 width, height, loadflags );
948 end:
949 TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon );
950 UnmapViewOfFile( bits );
951 return hIcon;
952 }
953
954 /**********************************************************************
955 * CURSORICON_Load
956 *
957 * Load a cursor or icon from resource or file.
958 */
959 static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
960 INT width, INT height, INT colors,
961 BOOL fCursor, UINT loadflags)
962 {
963 HANDLE handle = 0;
964 HICON hIcon = 0;
965 HRSRC hRsrc, hGroupRsrc;
966 CURSORICONDIR *dir;
967 CURSORICONDIRENTRY *dirEntry;
968 LPBYTE bits;
969 WORD wResId;
970 DWORD dwBytesInRes;
971
972 TRACE("%p, %s, %dx%d, colors %d, fCursor %d, flags 0x%04x\n",
973 hInstance, debugstr_w(name), width, height, colors, fCursor, loadflags);
974
975 if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
976 return CURSORICON_LoadFromFile( name, width, height, colors, fCursor, loadflags );
977
978 if (!hInstance) hInstance = user32_module; /* Load OEM cursor/icon */
979
980 /* Normalize hInstance (must be uniquely represented for icon cache) */
981
982 if (!HIWORD( hInstance ))
983 hInstance = HINSTANCE_32(GetExePtr( HINSTANCE_16(hInstance) ));
984
985 /* Get directory resource ID */
986
987 if (!(hRsrc = FindResourceW( hInstance, name,
988 (LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
989 return 0;
990 hGroupRsrc = hRsrc;
991
992 /* Find the best entry in the directory */
993
994 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
995 if (!(dir = (CURSORICONDIR*)LockResource( handle ))) return 0;
996 if (fCursor)
997 dirEntry = CURSORICON_FindBestCursorRes( dir, width, height, 1);
998 else
999 dirEntry = CURSORICON_FindBestIconRes( dir, width, height, colors );
1000 if (!dirEntry) return 0;
1001 wResId = dirEntry->wResId;
1002 dwBytesInRes = dirEntry->dwBytesInRes;
1003 FreeResource( handle );
1004
1005 /* Load the resource */
1006
1007 if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
1008 (LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0;
1009
1010 /* If shared icon, check whether it was already loaded */
1011 if ( (loadflags & LR_SHARED)
1012 && (hIcon = CURSORICON_FindSharedIcon( hInstance, hRsrc ) ) != 0 )
1013 return hIcon;
1014
1015 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1016 bits = (LPBYTE)LockResource( handle );
1017 hIcon = CreateIconFromResourceEx( bits, dwBytesInRes,
1018 !fCursor, 0x00030000, width, height, loadflags);
1019 FreeResource( handle );
1020
1021 /* If shared icon, add to icon cache */
1022
1023 if ( hIcon && (loadflags & LR_SHARED) )
1024 CURSORICON_AddSharedIcon( hInstance, hRsrc, hGroupRsrc, hIcon );
1025
1026 return hIcon;
1027 }
1028
1029 /***********************************************************************
1030 * CURSORICON_Copy
1031 *
1032 * Make a copy of a cursor or icon.
1033 */
1034 static HICON CURSORICON_Copy( HINSTANCE16 hInst16, HICON hIcon )
1035 {
1036 char *ptrOld, *ptrNew;
1037 int size;
1038 HICON16 hOld = HICON_16(hIcon);
1039 HICON16 hNew;
1040
1041 if (!(ptrOld = (char *)GlobalLock16( hOld ))) return 0;
1042 if (hInst16 && !(hInst16 = GetExePtr( hInst16 ))) return 0;
1043 size = GlobalSize16( hOld );
1044 hNew = GlobalAlloc16( GMEM_MOVEABLE, size );
1045 FarSetOwner16( hNew, hInst16 );
1046 ptrNew = (char *)GlobalLock16( hNew );
1047 memcpy( ptrNew, ptrOld, size );
1048 GlobalUnlock16( hOld );
1049 GlobalUnlock16( hNew );
1050 return HICON_32(hNew);
1051 }
1052
1053 /*************************************************************************
1054 * CURSORICON_ExtCopy
1055 *
1056 * Copies an Image from the Cache if LR_COPYFROMRESOURCE is specified
1057 *
1058 * PARAMS
1059 * Handle [I] handle to an Image
1060 * nType [I] Type of Handle (IMAGE_CURSOR | IMAGE_ICON)
1061 * iDesiredCX [I] The Desired width of the Image
1062 * iDesiredCY [I] The desired height of the Image
1063 * nFlags [I] The flags from CopyImage
1064 *
1065 * RETURNS
1066 * Success: The new handle of the Image
1067 *
1068 * NOTES
1069 * LR_COPYDELETEORG and LR_MONOCHROME are currently not implemented.
1070 * LR_MONOCHROME should be implemented by CreateIconFromResourceEx.
1071 * LR_COPYFROMRESOURCE will only work if the Image is in the Cache.
1072 *
1073 *
1074 */
1075
1076 static HICON CURSORICON_ExtCopy(HICON hIcon, UINT nType,
1077 INT iDesiredCX, INT iDesiredCY,
1078 UINT nFlags)
1079 {
1080 HICON hNew=0;
1081
1082 TRACE_(icon)("hIcon %p, nType %u, iDesiredCX %i, iDesiredCY %i, nFlags %u\n",
1083 hIcon, nType, iDesiredCX, iDesiredCY, nFlags);
1084
1085 if(hIcon == 0)
1086 {
1087 return 0;
1088 }
1089
1090 /* Best Fit or Monochrome */
1091 if( (nFlags & LR_COPYFROMRESOURCE
1092 && (iDesiredCX > 0 || iDesiredCY > 0))
1093 || nFlags & LR_MONOCHROME)
1094 {
1095 ICONCACHE* pIconCache = CURSORICON_FindCache(hIcon);
1096
1097 /* Not Found in Cache, then do a straight copy
1098 */
1099 if(pIconCache == NULL)
1100 {
1101 hNew = CURSORICON_Copy(0, hIcon);
1102 if(nFlags & LR_COPYFROMRESOURCE)
1103 {
1104 TRACE_(icon)("LR_COPYFROMRESOURCE: Failed to load from cache\n");
1105 }
1106 }
1107 else
1108 {
1109 int iTargetCY = iDesiredCY, iTargetCX = iDesiredCX;
1110 LPBYTE pBits;
1111 HANDLE hMem;
1112 HRSRC hRsrc;
1113 DWORD dwBytesInRes;
1114 WORD wResId;
1115 CURSORICONDIR *pDir;
1116 CURSORICONDIRENTRY *pDirEntry;
1117 BOOL bIsIcon = (nType == IMAGE_ICON);
1118
1119 /* Completing iDesiredCX CY for Monochrome Bitmaps if needed
1120 */
1121 if(((nFlags & LR_MONOCHROME) && !(nFlags & LR_COPYFROMRESOURCE))
1122 || (iDesiredCX == 0 && iDesiredCY == 0))
1123 {
1124 iDesiredCY = GetSystemMetrics(bIsIcon ?
1125 SM_CYICON : SM_CYCURSOR);
1126 iDesiredCX = GetSystemMetrics(bIsIcon ?
1127 SM_CXICON : SM_CXCURSOR);
1128 }
1129
1130 /* Retrieve the CURSORICONDIRENTRY
1131 */
1132 if (!(hMem = LoadResource( pIconCache->hModule ,
1133 pIconCache->hGroupRsrc)))
1134 {
1135 return 0;
1136 }
1137 if (!(pDir = (CURSORICONDIR*)LockResource( hMem )))
1138 {
1139 return 0;
1140 }
1141
1142 /* Find Best Fit
1143 */
1144 if(bIsIcon)
1145 {
1146 pDirEntry = CURSORICON_FindBestIconRes(
1147 pDir, iDesiredCX, iDesiredCY, 256 );
1148 }
1149 else
1150 {
1151 pDirEntry = CURSORICON_FindBestCursorRes(
1152 pDir, iDesiredCX, iDesiredCY, 1);
1153 }
1154
1155 wResId = pDirEntry->wResId;
1156 dwBytesInRes = pDirEntry->dwBytesInRes;
1157 FreeResource(hMem);
1158
1159 TRACE_(icon)("ResID %u, BytesInRes %u, Width %d, Height %d DX %d, DY %d\n",
1160 wResId, dwBytesInRes, pDirEntry->ResInfo.icon.bWidth,
1161 pDirEntry->ResInfo.icon.bHeight, iDesiredCX, iDesiredCY);
1162
1163 /* Get the Best Fit
1164 */
1165 if (!(hRsrc = FindResourceW(pIconCache->hModule ,
1166 MAKEINTRESOURCEW(wResId), (LPWSTR)(bIsIcon ? RT_ICON : RT_CURSOR))))
1167 {
1168 return 0;
1169 }
1170 if (!(hMem = LoadResource( pIconCache->hModule , hRsrc )))
1171 {
1172 return 0;
1173 }
1174
1175 pBits = (LPBYTE)LockResource( hMem );
1176
1177 if(nFlags & LR_DEFAULTSIZE)
1178 {
1179 iTargetCY = GetSystemMetrics(SM_CYICON);
1180 iTargetCX = GetSystemMetrics(SM_CXICON);
1181 }
1182
1183 /* Create a New Icon with the proper dimension
1184 */
1185 hNew = CreateIconFromResourceEx( pBits, dwBytesInRes,
1186 bIsIcon, 0x00030000, iTargetCX, iTargetCY, nFlags);
1187 FreeResource(hMem);
1188 }
1189 }
1190 else hNew = CURSORICON_Copy(0, hIcon);
1191 return hNew;
1192 }
1193
1194
1195 /***********************************************************************
1196 * CreateCursor (USER32.@)
1197 */
1198 HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
1199 INT xHotSpot, INT yHotSpot,
1200 INT nWidth, INT nHeight,
1201 LPCVOID lpANDbits, LPCVOID lpXORbits )
1202 {
1203 CURSORICONINFO info;
1204
1205 TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
1206 nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
1207
1208 info.ptHotSpot.x = xHotSpot;
1209 info.ptHotSpot.y = yHotSpot;
1210 info.nWidth = nWidth;
1211 info.nHeight = nHeight;
1212 info.nWidthBytes = 0;
1213 info.bPlanes = 1;
1214 info.bBitsPerPixel = 1;
1215
1216 return HICON_32(CreateCursorIconIndirect16(0, &info, lpANDbits, lpXORbits));
1217 }
1218
1219
1220 /***********************************************************************
1221 * CreateIcon (USER.407)
1222 */
1223 HICON16 WINAPI CreateIcon16( HINSTANCE16 hInstance, INT16 nWidth,
1224 INT16 nHeight, BYTE bPlanes, BYTE bBitsPixel,
1225 LPCVOID lpANDbits, LPCVOID lpXORbits )
1226 {
1227 CURSORICONINFO info;
1228
1229 TRACE_(icon)("%dx%dx%d, xor=%p, and=%p\n",
1230 nWidth, nHeight, bPlanes * bBitsPixel, lpXORbits, lpANDbits);
1231
1232 info.ptHotSpot.x = ICON_HOTSPOT;
1233 info.ptHotSpot.y = ICON_HOTSPOT;
1234 info.nWidth = nWidth;
1235 info.nHeight = nHeight;
1236 info.nWidthBytes = 0;
1237 info.bPlanes = bPlanes;
1238 info.bBitsPerPixel = bBitsPixel;
1239
1240 return CreateCursorIconIndirect16( hInstance, &info, lpANDbits, lpXORbits );
1241 }
1242
1243
1244 /***********************************************************************
1245 * CreateIcon (USER32.@)
1246 *
1247 * Creates an icon based on the specified bitmaps. The bitmaps must be
1248 * provided in a device dependent format and will be resized to
1249 * (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
1250 * depth. The provided bitmaps must be top-down bitmaps.
1251 * Although Windows does not support 15bpp(*) this API must support it
1252 * for Winelib applications.
1253 *
1254 * (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
1255 * format!
1256 *
1257 * RETURNS
1258 * Success: handle to an icon
1259 * Failure: NULL
1260 *
1261 * FIXME: Do we need to resize the bitmaps?
1262 */
1263 HICON WINAPI CreateIcon(
1264 HINSTANCE hInstance, /* [in] the application's hInstance */
1265 INT nWidth, /* [in] the width of the provided bitmaps */
1266 INT nHeight, /* [in] the height of the provided bitmaps */
1267 BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
1268 BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
1269 LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
1270 LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
1271 {
1272 ICONINFO iinfo;
1273 HICON hIcon;
1274
1275 TRACE_(icon)("%dx%d, planes %d, bpp %d, xor %p, and %p\n",
1276 nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits, lpANDbits);
1277
1278 iinfo.fIcon = TRUE;
1279 iinfo.xHotspot = ICON_HOTSPOT;
1280 iinfo.yHotspot = ICON_HOTSPOT;
1281 iinfo.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1282 iinfo.hbmColor = CreateBitmap( nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits );
1283
1284 hIcon = CreateIconIndirect( &iinfo );
1285
1286 DeleteObject( iinfo.hbmMask );
1287 DeleteObject( iinfo.hbmColor );
1288
1289 return hIcon;
1290 }
1291
1292
1293 /***********************************************************************
1294 * CreateCursorIconIndirect (USER.408)
1295 */
1296 HGLOBAL16 WINAPI CreateCursorIconIndirect16( HINSTANCE16 hInstance,
1297 CURSORICONINFO *info,
1298 LPCVOID lpANDbits,
1299 LPCVOID lpXORbits )
1300 {
1301 HGLOBAL16 handle;
1302 char *ptr;
1303 int sizeAnd, sizeXor;
1304
1305 hInstance = GetExePtr( hInstance ); /* Make it a module handle */
1306 if (!lpXORbits || !lpANDbits || info->bPlanes != 1) return 0;
1307 info->nWidthBytes = get_bitmap_width_bytes(info->nWidth,info->bBitsPerPixel);
1308 sizeXor = info->nHeight * info->nWidthBytes;
1309 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1310 if (!(handle = GlobalAlloc16( GMEM_MOVEABLE,
1311 sizeof(CURSORICONINFO) + sizeXor + sizeAnd)))
1312 return 0;
1313 FarSetOwner16( handle, hInstance );
1314 ptr = (char *)GlobalLock16( handle );
1315 memcpy( ptr, info, sizeof(*info) );
1316 memcpy( ptr + sizeof(CURSORICONINFO), lpANDbits, sizeAnd );
1317 memcpy( ptr + sizeof(CURSORICONINFO) + sizeAnd, lpXORbits, sizeXor );
1318 GlobalUnlock16( handle );
1319 return handle;
1320 }
1321
1322
1323 /***********************************************************************
1324 * CopyIcon (USER.368)
1325 */
1326 HICON16 WINAPI CopyIcon16( HINSTANCE16 hInstance, HICON16 hIcon )
1327 {
1328 TRACE_(icon)("%04x %04x\n", hInstance, hIcon );
1329 return HICON_16(CURSORICON_Copy(hInstance, HICON_32(hIcon)));
1330 }
1331
1332
1333 /***********************************************************************
1334 * CopyIcon (USER32.@)
1335 */
1336 HICON WINAPI CopyIcon( HICON hIcon )
1337 {
1338 TRACE_(icon)("%p\n", hIcon );
1339 return CURSORICON_Copy( 0, hIcon );
1340 }
1341
1342
1343 /***********************************************************************
1344 * CopyCursor (USER.369)
1345 */
1346 HCURSOR16 WINAPI CopyCursor16( HINSTANCE16 hInstance, HCURSOR16 hCursor )
1347 {
1348 TRACE_(cursor)("%04x %04x\n", hInstance, hCursor );
1349 return HICON_16(CURSORICON_Copy(hInstance, HCURSOR_32(hCursor)));
1350 }
1351
1352 /**********************************************************************
1353 * DestroyIcon32 (USER.610)
1354 *
1355 * This routine is actually exported from Win95 USER under the name
1356 * DestroyIcon32 ... The behaviour implemented here should mimic
1357 * the Win95 one exactly, especially the return values, which
1358 * depend on the setting of various flags.
1359 */
1360 WORD WINAPI DestroyIcon32( HGLOBAL16 handle, UINT16 flags )
1361 {
1362 WORD retv;
1363
1364 TRACE_(icon)("(%04x, %04x)\n", handle, flags );
1365
1366 /* Check whether destroying active cursor */
1367
1368 if ( get_user_thread_info()->cursor == HICON_32(handle) )
1369 {
1370 WARN_(cursor)("Destroying active cursor!\n" );
1371 return FALSE;
1372 }
1373
1374 /* Try shared cursor/icon first */
1375
1376 if ( !(flags & CID_NONSHARED) )
1377 {
1378 INT count = CURSORICON_DelSharedIcon(HICON_32(handle));
1379
1380 if ( count != -1 )
1381 return (flags & CID_WIN32)? TRUE : (count == 0);
1382
1383 /* FIXME: OEM cursors/icons should be recognized */
1384 }
1385
1386 /* Now assume non-shared cursor/icon */
1387
1388 retv = GlobalFree16( handle );
1389 return (flags & CID_RESOURCE)? retv : TRUE;
1390 }
1391
1392 /***********************************************************************
1393 * DestroyIcon (USER32.@)
1394 */
1395 BOOL WINAPI DestroyIcon( HICON hIcon )
1396 {
1397 return DestroyIcon32(HICON_16(hIcon), CID_WIN32);
1398 }
1399
1400
1401 /***********************************************************************
1402 * DestroyCursor (USER32.@)
1403 */
1404 BOOL WINAPI DestroyCursor( HCURSOR hCursor )
1405 {
1406 return DestroyIcon32(HCURSOR_16(hCursor), CID_WIN32);
1407 }
1408
1409
1410 /***********************************************************************
1411 * DrawIcon (USER32.@)
1412 */
1413 BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
1414 {
1415 CURSORICONINFO *ptr;
1416 HDC hMemDC;
1417 HBITMAP hXorBits, hAndBits;
1418 COLORREF oldFg, oldBg;
1419
1420 TRACE("%p, (%d,%d), %p\n", hdc, x, y, hIcon);
1421
1422 if (!(ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon)))) return FALSE;
1423 if (!(hMemDC = CreateCompatibleDC( hdc ))) return FALSE;
1424 hAndBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1,
1425 (char *)(ptr+1) );
1426 hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, ptr->bPlanes,
1427 ptr->bBitsPerPixel, (char *)(ptr + 1)
1428 + ptr->nHeight * get_bitmap_width_bytes(ptr->nWidth,1) );
1429 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1430 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1431
1432 if (hXorBits && hAndBits)
1433 {
1434 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
1435 BitBlt( hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0, SRCAND );
1436 SelectObject( hMemDC, hXorBits );
1437 BitBlt(hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0,SRCINVERT);
1438 SelectObject( hMemDC, hBitTemp );
1439 }
1440 DeleteDC( hMemDC );
1441 if (hXorBits) DeleteObject( hXorBits );
1442 if (hAndBits) DeleteObject( hAndBits );
1443 GlobalUnlock16(HICON_16(hIcon));
1444 SetTextColor( hdc, oldFg );
1445 SetBkColor( hdc, oldBg );
1446 return TRUE;
1447 }
1448
1449 /***********************************************************************
1450 * DumpIcon (USER.459)
1451 */
1452 DWORD WINAPI DumpIcon16( SEGPTR pInfo, WORD *lpLen,
1453 SEGPTR *lpXorBits, SEGPTR *lpAndBits )
1454 {
1455 CURSORICONINFO *info = MapSL( pInfo );
1456 int sizeAnd, sizeXor;
1457
1458 if (!info) return 0;
1459 sizeXor = info->nHeight * info->nWidthBytes;
1460 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1461 if (lpAndBits) *lpAndBits = pInfo + sizeof(CURSORICONINFO);
1462 if (lpXorBits) *lpXorBits = pInfo + sizeof(CURSORICONINFO) + sizeAnd;
1463 if (lpLen) *lpLen = sizeof(CURSORICONINFO) + sizeAnd + sizeXor;
1464 return MAKELONG( sizeXor, sizeXor );
1465 }
1466
1467
1468 /***********************************************************************
1469 * SetCursor (USER32.@)
1470 *
1471 * Set the cursor shape.
1472 *
1473 * RETURNS
1474 * A handle to the previous cursor shape.
1475 */
1476 HCURSOR WINAPI SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
1477 {
1478 struct user_thread_info *thread_info = get_user_thread_info();
1479 HCURSOR hOldCursor;
1480
1481 if (hCursor == thread_info->cursor) return hCursor; /* No change */
1482 TRACE("%p\n", hCursor);
1483 hOldCursor = thread_info->cursor;
1484 thread_info->cursor = hCursor;
1485 /* Change the cursor shape only if it is visible */
1486 if (thread_info->cursor_count >= 0)
1487 {
1488 USER_Driver->pSetCursor( (CURSORICONINFO*)GlobalLock16(HCURSOR_16(hCursor)) );
1489 GlobalUnlock16(HCURSOR_16(hCursor));
1490 }
1491 return hOldCursor;
1492 }
1493
1494 /***********************************************************************
1495 * ShowCursor (USER32.@)
1496 */
1497 INT WINAPI ShowCursor( BOOL bShow )
1498 {
1499 struct user_thread_info *thread_info = get_user_thread_info();
1500
1501 TRACE("%d, count=%d\n", bShow, thread_info->cursor_count );
1502
1503 if (bShow)
1504 {
1505 if (++thread_info->cursor_count == 0) /* Show it */
1506 {
1507 USER_Driver->pSetCursor((CURSORICONINFO*)GlobalLock16(HCURSOR_16(thread_info->cursor)));
1508 GlobalUnlock16(HCURSOR_16(thread_info->cursor));
1509 }
1510 }
1511 else
1512 {
1513 if (--thread_info->cursor_count == -1) /* Hide it */
1514 USER_Driver->pSetCursor( NULL );
1515 }
1516 return thread_info->cursor_count;
1517 }
1518
1519 /***********************************************************************
1520 * GetCursor (USER32.@)
1521 */
1522 HCURSOR WINAPI GetCursor(void)
1523 {
1524 return get_user_thread_info()->cursor;
1525 }
1526
1527
1528 /***********************************************************************
1529 * ClipCursor (USER32.@)
1530 */
1531 BOOL WINAPI ClipCursor( const RECT *rect )
1532 {
1533 RECT virt;
1534
1535 SetRect( &virt, 0, 0, GetSystemMetrics( SM_CXVIRTUALSCREEN ),
1536 GetSystemMetrics( SM_CYVIRTUALSCREEN ) );
1537 OffsetRect( &virt, GetSystemMetrics( SM_XVIRTUALSCREEN ),
1538 GetSystemMetrics( SM_YVIRTUALSCREEN ) );
1539
1540 TRACE( "Clipping to: %s was: %s screen: %s\n", wine_dbgstr_rect(rect),
1541 wine_dbgstr_rect(&CURSOR_ClipRect), wine_dbgstr_rect(&virt) );
1542
1543 if (!IntersectRect( &CURSOR_ClipRect, &virt, rect ))
1544 CURSOR_ClipRect = virt;
1545
1546 USER_Driver->pClipCursor( rect );
1547 return TRUE;
1548 }
1549
1550
1551 /***********************************************************************
1552 * GetClipCursor (USER32.@)
1553 */
1554 BOOL WINAPI GetClipCursor( RECT *rect )
1555 {
1556 /* If this is first time - initialize the rect */
1557 if (IsRectEmpty( &CURSOR_ClipRect )) ClipCursor( NULL );
1558
1559 return CopyRect( rect, &CURSOR_ClipRect );
1560 }
1561
1562
1563 /***********************************************************************
1564 * SetSystemCursor (USER32.@)
1565 */
1566 BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id)
1567 {
1568 FIXME("(%p,%08x),stub!\n", hcur, id);
1569 return TRUE;
1570 }
1571
1572
1573 /**********************************************************************
1574 * LookupIconIdFromDirectoryEx (USER.364)
1575 *
1576 * FIXME: exact parameter sizes
1577 */
1578 INT16 WINAPI LookupIconIdFromDirectoryEx16( LPBYTE dir, BOOL16 bIcon,
1579 INT16 width, INT16 height, UINT16 cFlag )
1580 {
1581 return LookupIconIdFromDirectoryEx( dir, bIcon, width, height, cFlag );
1582 }
1583
1584 /**********************************************************************
1585 * LookupIconIdFromDirectoryEx (USER32.@)
1586 */
1587 INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
1588 INT width, INT height, UINT cFlag )
1589 {
1590 CURSORICONDIR *dir = (CURSORICONDIR*)xdir;
1591 UINT retVal = 0;
1592 if( dir && !dir->idReserved && (dir->idType & 3) )
1593 {
1594 CURSORICONDIRENTRY* entry;
1595 HDC hdc;
1596 UINT palEnts;
1597 int colors;
1598 hdc = GetDC(0);
1599 palEnts = GetSystemPaletteEntries(hdc, 0, 0, NULL);
1600 if (palEnts == 0)
1601 palEnts = 256;
1602 colors = (cFlag & LR_MONOCHROME) ? 2 : palEnts;
1603
1604 ReleaseDC(0, hdc);
1605
1606 if( bIcon )
1607 entry = CURSORICON_FindBestIconRes( dir, width, height, colors );
1608 else
1609 entry = CURSORICON_FindBestCursorRes( dir, width, height, 1);
1610
1611 if( entry ) retVal = entry->wResId;
1612 }
1613 else WARN_(cursor)("invalid resource directory\n");
1614 return retVal;
1615 }
1616
1617 /**********************************************************************
1618 * LookupIconIdFromDirectory (USER.?)
1619 */
1620 INT16 WINAPI LookupIconIdFromDirectory16( LPBYTE dir, BOOL16 bIcon )
1621 {
1622 return LookupIconIdFromDirectoryEx16( dir, bIcon,
1623 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1624 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1625 }
1626
1627 /**********************************************************************
1628 * LookupIconIdFromDirectory (USER32.@)
1629 */
1630 INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
1631 {
1632 return LookupIconIdFromDirectoryEx( dir, bIcon,
1633 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1634 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1635 }
1636
1637 /**********************************************************************
1638 * GetIconID (USER.455)
1639 */
1640 WORD WINAPI GetIconID16( HGLOBAL16 hResource, DWORD resType )
1641 {
1642 LPBYTE lpDir = (LPBYTE)GlobalLock16(hResource);
1643
1644 TRACE_(cursor)("hRes=%04x, entries=%i\n",
1645 hResource, lpDir ? ((CURSORICONDIR*)lpDir)->idCount : 0);
1646
1647 switch(resType)
1648 {
1649 case RT_CURSOR:
1650 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, FALSE,
1651 GetSystemMetrics(SM_CXCURSOR), GetSystemMetrics(SM_CYCURSOR), LR_MONOCHROME );
1652 case RT_ICON:
1653 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, TRUE,
1654 GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), 0 );
1655 default:
1656 WARN_(cursor)("invalid res type %d\n", resType );
1657 }
1658 return 0;
1659 }
1660
1661 /**********************************************************************
1662 * LoadCursorIconHandler (USER.336)
1663 *
1664 * Supposed to load resources of Windows 2.x applications.
1665 */
1666 HGLOBAL16 WINAPI LoadCursorIconHandler16( HGLOBAL16 hResource, HMODULE16 hModule, HRSRC16 hRsrc )
1667 {
1668 FIXME_(cursor)("(%04x,%04x,%04x): old 2.x resources are not supported!\n",
1669 hResource, hModule, hRsrc);
1670 return (HGLOBAL16)0;
1671 }
1672
1673 /**********************************************************************
1674 * LoadIconHandler (USER.456)
1675 */
1676 HICON16 WINAPI LoadIconHandler16( HGLOBAL16 hResource, BOOL16 bNew )
1677 {
1678 LPBYTE bits = (LPBYTE)LockResource16( hResource );
1679
1680 TRACE_(cursor)("hRes=%04x\n",hResource);
1681
1682 return HICON_16(CreateIconFromResourceEx( bits, 0, TRUE,
1683 bNew ? 0x00030000 : 0x00020000, 0, 0, LR_DEFAULTCOLOR));
1684 }
1685
1686 /***********************************************************************
1687 * LoadCursorW (USER32.@)
1688 */
1689 HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
1690 {
1691 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1692
1693 return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
1694 LR_SHARED | LR_DEFAULTSIZE );
1695 }
1696
1697 /***********************************************************************
1698 * LoadCursorA (USER32.@)
1699 */
1700 HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
1701 {
1702 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1703
1704 return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
1705 LR_SHARED | LR_DEFAULTSIZE );
1706 }
1707
1708 /***********************************************************************
1709 * LoadCursorFromFileW (USER32.@)
1710 */
1711 HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
1712 {
1713 TRACE("%s\n", debugstr_w(name));
1714
1715 return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
1716 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1717 }
1718
1719 /***********************************************************************
1720 * LoadCursorFromFileA (USER32.@)
1721 */
1722 HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
1723 {
1724 TRACE("%s\n", debugstr_a(name));
1725
1726 return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
1727 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1728 }
1729
1730 /***********************************************************************
1731 * LoadIconW (USER32.@)
1732 */
1733 HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
1734 {
1735 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1736
1737 return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
1738 LR_SHARED | LR_DEFAULTSIZE );
1739 }
1740
1741 /***********************************************************************
1742 * LoadIconA (USER32.@)
1743 */
1744 HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
1745 {
1746 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1747
1748 return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
1749 LR_SHARED | LR_DEFAULTSIZE );
1750 }
1751
1752 /**********************************************************************
1753 * GetIconInfo (USER32.@)
1754 */
1755 BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
1756 {
1757 CURSORICONINFO *ciconinfo;
1758 INT height;
1759
1760 ciconinfo = GlobalLock16(HICON_16(hIcon));
1761 if (!ciconinfo)
1762 return FALSE;
1763
1764 TRACE("%p => %dx%d, %d bpp\n", hIcon,
1765 ciconinfo->nWidth, ciconinfo->nHeight, ciconinfo->bBitsPerPixel);
1766
1767 if ( (ciconinfo->ptHotSpot.x == ICON_HOTSPOT) &&
1768 (ciconinfo->ptHotSpot.y == ICON_HOTSPOT) )
1769 {
1770 iconinfo->fIcon = TRUE;
1771 iconinfo->xHotspot = ciconinfo->nWidth / 2;
1772 iconinfo->yHotspot = ciconinfo->nHeight / 2;
1773 }
1774 else
1775 {
1776 iconinfo->fIcon = FALSE;
1777 iconinfo->xHotspot = ciconinfo->ptHotSpot.x;
1778 iconinfo->yHotspot = ciconinfo->ptHotSpot.y;
1779 }
1780
1781 height = ciconinfo->nHeight;
1782
1783 if (ciconinfo->bBitsPerPixel > 1)
1784 {
1785 iconinfo->hbmColor = CreateBitmap( ciconinfo->nWidth, ciconinfo->nHeight,
1786 ciconinfo->bPlanes, ciconinfo->bBitsPerPixel,
1787 (char *)(ciconinfo + 1)
1788 + ciconinfo->nHeight *
1789 get_bitmap_width_bytes (ciconinfo->nWidth,1) );
1790 }
1791 else
1792 {
1793 iconinfo->hbmColor = 0;
1794 height *= 2;
1795 }
1796
1797 iconinfo->hbmMask = CreateBitmap ( ciconinfo->nWidth, height,
1798 1, 1, (char *)(ciconinfo + 1));
1799
1800 GlobalUnlock16(HICON_16(hIcon));
1801
1802 return TRUE;
1803 }
1804
1805 /**********************************************************************
1806 * CreateIconIndirect (USER32.@)
1807 */
1808 HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
1809 {
1810 DIBSECTION bmpXor;
1811 BITMAP bmpAnd;
1812 HICON16 hObj;
1813 int xor_objsize = 0, sizeXor = 0, sizeAnd, planes, bpp;
1814
1815 TRACE("color %p, mask %p, hotspot %ux%u, fIcon %d\n",
1816 iconinfo->hbmColor, iconinfo->hbmMask,
1817 iconinfo->xHotspot, iconinfo->yHotspot, iconinfo->fIcon);
1818
1819 if (!iconinfo->hbmMask) return 0;
1820
1821 planes = GetDeviceCaps( screen_dc, PLANES );
1822 bpp = GetDeviceCaps( screen_dc, BITSPIXEL );
1823
1824 if (iconinfo->hbmColor)
1825 {
1826 xor_objsize = GetObjectW( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
1827 TRACE("color: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
1828 bmpXor.dsBm.bmWidth, bmpXor.dsBm.bmHeight, bmpXor.dsBm.bmWidthBytes,
1829 bmpXor.dsBm.bmPlanes, bmpXor.dsBm.bmBitsPixel);
1830 /* we can use either depth 1 or screen depth for xor bitmap */
1831 if (bmpXor.dsBm.bmPlanes == 1 && bmpXor.dsBm.bmBitsPixel == 1) planes = bpp = 1;
1832 sizeXor = bmpXor.dsBm.bmHeight * planes * get_bitmap_width_bytes( bmpXor.dsBm.bmWidth, bpp );
1833 }
1834 GetObjectW( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
1835 TRACE("mask: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
1836 bmpAnd.bmWidth, bmpAnd.bmHeight, bmpAnd.bmWidthBytes,
1837 bmpAnd.bmPlanes, bmpAnd.bmBitsPixel);
1838
1839 sizeAnd = bmpAnd.bmHeight * get_bitmap_width_bytes(bmpAnd.bmWidth, 1);
1840
1841 hObj = GlobalAlloc16( GMEM_MOVEABLE,
1842 sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
1843 if (hObj)
1844 {
1845 CURSORICONINFO *info;
1846
1847 info = (CURSORICONINFO *)GlobalLock16( hObj );
1848
1849 /* If we are creating an icon, the hotspot is unused */
1850 if (iconinfo->fIcon)
1851 {
1852 info->ptHotSpot.x = ICON_HOTSPOT;
1853 info->ptHotSpot.y = ICON_HOTSPOT;
1854 }
1855 else
1856 {
1857 info->ptHotSpot.x = iconinfo->xHotspot;
1858 info->ptHotSpot.y = iconinfo->yHotspot;
1859 }
1860
1861 if (iconinfo->hbmColor)
1862 {
1863 info->nWidth = bmpXor.dsBm.bmWidth;
1864 info->nHeight = bmpXor.dsBm.bmHeight;
1865 info->nWidthBytes = bmpXor.dsBm.bmWidthBytes;
1866 info->bPlanes = planes;
1867 info->bBitsPerPixel = bpp;
1868 }
1869 else
1870 {
1871 info->nWidth = bmpAnd.bmWidth;
1872 info->nHeight = bmpAnd.bmHeight / 2;
1873 info->nWidthBytes = get_bitmap_width_bytes(bmpAnd.bmWidth, 1);
1874 info->bPlanes = 1;
1875 info->bBitsPerPixel = 1;
1876 }
1877
1878 /* Transfer the bitmap bits to the CURSORICONINFO structure */
1879
1880 /* Some apps pass a color bitmap as a mask, convert it to b/w */
1881 if (bmpAnd.bmBitsPixel == 1)
1882 {
1883 GetBitmapBits( iconinfo->hbmMask, sizeAnd, (char*)(info + 1) );
1884 }
1885 else
1886 {
1887 HDC hdc, hdc_mem;
1888 HBITMAP hbmp_old, hbmp_mem_old, hbmp_mono;
1889
1890 hdc = GetDC( 0 );
1891 hdc_mem = CreateCompatibleDC( hdc );
1892
1893 hbmp_mono = CreateBitmap( bmpAnd.bmWidth, bmpAnd.bmHeight, 1, 1, NULL );
1894
1895 hbmp_old = SelectObject( hdc, iconinfo->hbmMask );
1896 hbmp_mem_old = SelectObject( hdc_mem, hbmp_mono );
1897
1898 BitBlt( hdc_mem, 0, 0, bmpAnd.bmWidth, bmpAnd.bmHeight, hdc, 0, 0, SRCCOPY );
1899
1900 SelectObject( hdc, hbmp_old );
1901 SelectObject( hdc_mem, hbmp_mem_old );
1902
1903 DeleteDC( hdc_mem );
1904 ReleaseDC( 0, hdc );
1905
1906 GetBitmapBits( hbmp_mono, sizeAnd, (char*)(info + 1) );
1907 DeleteObject( hbmp_mono );
1908 }
1909
1910 if (iconinfo->hbmColor)
1911 {
1912 char *dst_bits = (char*)(info + 1) + sizeAnd;
1913
1914 if (bmpXor.dsBm.bmPlanes == planes && bmpXor.dsBm.bmBitsPixel == bpp)
1915 GetBitmapBits( iconinfo->hbmColor, sizeXor, dst_bits );
1916 else
1917 {
1918 BITMAPINFO bminfo;
1919 int dib_width = get_dib_width_bytes( info->nWidth, info->bBitsPerPixel );
1920 int bitmap_width = get_bitmap_width_bytes( info->nWidth, info->bBitsPerPixel );
1921
1922 bminfo.bmiHeader.biSize = sizeof(bminfo);
1923 bminfo.bmiHeader.biWidth = info->nWidth;
1924 bminfo.bmiHeader.biHeight = info->nHeight;
1925 bminfo.bmiHeader.biPlanes = info->bPlanes;
1926 bminfo.bmiHeader.biBitCount = info->bBitsPerPixel;
1927 bminfo.bmiHeader.biCompression = BI_RGB;
1928 bminfo.bmiHeader.biSizeImage = info->nHeight * dib_width;
1929 bminfo.bmiHeader.biXPelsPerMeter = 0;
1930 bminfo.bmiHeader.biYPelsPerMeter = 0;
1931 bminfo.bmiHeader.biClrUsed = 0;
1932 bminfo.bmiHeader.biClrImportant = 0;
1933
1934 /* swap lines for dib sections */
1935 if (xor_objsize == sizeof(DIBSECTION))
1936 bminfo.bmiHeader.biHeight = -bminfo.bmiHeader.biHeight;
1937
1938 if (dib_width != bitmap_width) /* need to fixup alignment */
1939 {
1940 char *src_bits = HeapAlloc( GetProcessHeap(), 0, bminfo.bmiHeader.biSizeImage );
1941
1942 if (src_bits && GetDIBits( screen_dc, iconinfo->hbmColor, 0, info->nHeight,
1943 src_bits, &bminfo, DIB_RGB_COLORS ))
1944 {
1945 int y;
1946 for (y = 0; y < info->nHeight; y++)
1947 memcpy( dst_bits + y * bitmap_width, src_bits + y * dib_width, bitmap_width );
1948 }
1949 HeapFree( GetProcessHeap(), 0, src_bits );
1950 }
1951 else
1952 GetDIBits( screen_dc, iconinfo->hbmColor, 0, info->nHeight,
1953 dst_bits, &bminfo, DIB_RGB_COLORS );
1954 }
1955 }
1956 GlobalUnlock16( hObj );
1957 }
1958 return HICON_32(hObj);
1959 }
1960
1961 /******************************************************************************
1962 * DrawIconEx (USER32.@) Draws an icon or cursor on device context
1963 *
1964 * NOTES
1965 * Why is this using SM_CXICON instead of SM_CXCURSOR?
1966 *
1967 * PARAMS
1968 * hdc [I] Handle to device context
1969 * x0 [I] X coordinate of upper left corner
1970 * y0 [I] Y coordinate of upper left corner
1971 * hIcon [I] Handle to icon to draw
1972 * cxWidth [I] Width of icon
1973 * cyWidth [I] Height of icon
1974 * istep [I] Index of frame in animated cursor
1975 * hbr [I] Handle to background brush
1976 * flags [I] Icon-drawing flags
1977 *
1978 * RETURNS
1979 * Success: TRUE
1980 * Failure: FALSE
1981 */
1982 BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
1983 INT cxWidth, INT cyWidth, UINT istep,
1984 HBRUSH hbr, UINT flags )
1985 {
1986 CURSORICONINFO *ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon));
1987 HDC hDC_off = 0, hMemDC;
1988 BOOL result = FALSE, DoOffscreen;
1989 HBITMAP hB_off = 0, hOld = 0;
1990
1991 if (!ptr) return FALSE;
1992 TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
1993 hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
1994
1995 hMemDC = CreateCompatibleDC (hdc);
1996 if (istep)
1997 FIXME_(icon)("Ignoring istep=%d\n", istep);
1998 if (flags & DI_NOMIRROR)
1999 FIXME_(icon)("Ignoring flag DI_NOMIRROR\n");
2000
2001 if (!flags) {
2002 FIXME_(icon)("no flags set? setting to DI_NORMAL\n");
2003 flags = DI_NORMAL;
2004 }
2005
2006 /* Calculate the size of the destination image. */
2007 if (cxWidth == 0)
2008 {
2009 if (flags & DI_DEFAULTSIZE)
2010 cxWidth = GetSystemMetrics (SM_CXICON);
2011 else
2012 cxWidth = ptr->nWidth;
2013 }
2014 if (cyWidth == 0)
2015 {
2016 if (flags & DI_DEFAULTSIZE)
2017 cyWidth = GetSystemMetrics (SM_CYICON);
2018 else
2019 cyWidth = ptr->nHeight;
2020 }
2021
2022 DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
2023
2024 if (DoOffscreen) {
2025 RECT r;
2026
2027 r.left = 0;
2028 r.top = 0;
2029 r.right = cxWidth;
2030 r.bottom = cxWidth;
2031
2032 hDC_off = CreateCompatibleDC(hdc);
2033 hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth);
2034 if (hDC_off && hB_off) {
2035 hOld = SelectObject(hDC_off, hB_off);
2036 FillRect(hDC_off, &r, hbr);
2037 }
2038 }
2039
2040 if (hMemDC && (!DoOffscreen || (hDC_off && hB_off)))
2041 {
2042 HBITMAP hXorBits, hAndBits;
2043 COLORREF oldFg, oldBg;
2044 INT nStretchMode;
2045
2046 nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
2047
2048 hXorBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
2049 ptr->bPlanes, ptr->bBitsPerPixel,
2050 (char *)(ptr + 1)
2051 + ptr->nHeight *
2052 get_bitmap_width_bytes(ptr->nWidth,1) );
2053 hAndBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
2054 1, 1, (char *)(ptr+1) );
2055 oldFg = SetTextColor( hdc, RGB(0,0,0) );
2056 oldBg = SetBkColor( hdc, RGB(255,255,255) );
2057
2058 if (hXorBits && hAndBits)
2059 {
2060 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
2061 if (flags & DI_MASK)
2062 {
2063 if (DoOffscreen)
2064 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
2065 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
2066 else
2067 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
2068 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
2069 }
2070 SelectObject( hMemDC, hXorBits );
2071 if (flags & DI_IMAGE)
2072 {
2073 if (DoOffscreen)
2074 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
2075 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
2076 else
2077 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
2078 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
2079 }
2080 SelectObject( hMemDC, hBitTemp );
2081 result = TRUE;
2082 }
2083
2084 SetTextColor( hdc, oldFg );
2085 SetBkColor( hdc, oldBg );
2086 if (hXorBits) DeleteObject( hXorBits );
2087 if (hAndBits) DeleteObject( hAndBits );
2088 SetStretchBltMode (hdc, nStretchMode);
2089 if (DoOffscreen) {
2090 BitBlt(hdc, x0, y0, cxWidth, cyWidth, hDC_off, 0, 0, SRCCOPY);
2091 SelectObject(hDC_off, hOld);
2092 }
2093 }
2094 if (hMemDC) DeleteDC( hMemDC );
2095 if (hDC_off) DeleteDC(hDC_off);
2096 if (hB_off) DeleteObject(hB_off);
2097 GlobalUnlock16(HICON_16(hIcon));
2098 return result;
2099 }
2100
2101 /***********************************************************************
2102 * DIB_FixColorsToLoadflags
2103 *
2104 * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
2105 * are in loadflags
2106 */
2107 static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
2108 {
2109 int colors;
2110 COLORREF c_W, c_S, c_F, c_L, c_C;
2111 int incr,i;
2112 RGBQUAD *ptr;
2113 int bitmap_type;
2114 LONG width;
2115 LONG height;
2116 WORD bpp;
2117 DWORD compr;
2118
2119 if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
2120 {
2121 WARN_(resource)("Invalid bitmap\n");
2122 return;
2123 }
2124
2125 if (bpp > 8) return;
2126
2127 if (bitmap_type == 0) /* BITMAPCOREHEADER */
2128 {
2129 incr = 3;
2130 colors = 1 << bpp;
2131 }
2132 else
2133 {
2134 incr = 4;
2135 colors = bmi->bmiHeader.biClrUsed;
2136 if (colors > 256) colors = 256;
2137 if (!colors && (bpp <= 8)) colors = 1 << bpp;
2138 }
2139
2140 c_W = GetSysColor(COLOR_WINDOW);
2141 c_S = GetSysColor(COLOR_3DSHADOW);
2142 c_F = GetSysColor(COLOR_3DFACE);
2143 c_L = GetSysColor(COLOR_3DLIGHT);
2144
2145 if (loadflags & LR_LOADTRANSPARENT) {
2146 switch (bpp) {
2147 case 1: pix = pix >> 7; break;
2148 case 4: pix = pix >> 4; break;
2149 case 8: break;
2150 default:
2151 WARN_(resource)("(%d): Unsupported depth\n", bpp);
2152 return;
2153 }
2154 if (pix >= colors) {
2155 WARN_(resource)("pixel has color index greater than biClrUsed!\n");
2156 return;
2157 }
2158 if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
2159 ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
2160 ptr->rgbBlue = GetBValue(c_W);
2161 ptr->rgbGreen = GetGValue(c_W);
2162 ptr->rgbRed = GetRValue(c_W);
2163 }
2164 if (loadflags & LR_LOADMAP3DCOLORS)
2165 for (i=0; i<colors; i++) {
2166 ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
2167 c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
2168 if (c_C == RGB(128, 128, 128)) {
2169 ptr->rgbRed = GetRValue(c_S);
2170 ptr->rgbGreen = GetGValue(c_S);
2171 ptr->rgbBlue = GetBValue(c_S);
2172 } else if (c_C == RGB(192, 192, 192)) {
2173 ptr->rgbRed = GetRValue(c_F);
2174 ptr->rgbGreen = GetGValue(c_F);
2175 ptr->rgbBlue = GetBValue(c_F);
2176 } else if (c_C == RGB(223, 223, 223)) {
2177 ptr->rgbRed = GetRValue(c_L);
2178 ptr->rgbGreen = GetGValue(c_L);
2179 ptr->rgbBlue = GetBValue(c_L);
2180 }
2181 }
2182 }
2183
2184
2185 /**********************************************************************
2186 * BITMAP_Load
2187 */
2188 static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
2189 INT desiredx, INT desiredy, UINT loadflags )
2190 {
2191 HBITMAP hbitmap = 0, orig_bm;
2192 HRSRC hRsrc;
2193 HGLOBAL handle;
2194 char *ptr = NULL;
2195 BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL;
2196 int size;
2197 BYTE pix;
2198 char *bits;
2199 LONG width, height, new_width, new_height;
2200 WORD bpp_dummy;
2201 DWORD compr_dummy;
2202 INT bm_type;
2203 HDC screen_mem_dc = NULL;
2204
2205 if (!(loadflags & LR_LOADFROMFILE))
2206 {
2207 if (!instance)
2208 {
2209 /* OEM bitmap: try to load the resource from user32.dll */
2210 instance = user32_module;
2211 }
2212
2213 if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
2214 if (!(handle = LoadResource( instance, hRsrc ))) return 0;
2215
2216 if ((info = (BITMAPINFO *)LockResource( handle )) == NULL) return 0;
2217 }
2218 else
2219 {
2220 BITMAPFILEHEADER * bmfh;
2221
2222 if (!(ptr = map_fileW( name, NULL ))) return 0;
2223 info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
2224 bmfh = (BITMAPFILEHEADER *)ptr;
2225 if (!( bmfh->bfType == 0x4d42 /* 'BM' */ &&
2226 bmfh->bfReserved1 == 0 &&
2227 bmfh->bfReserved2 == 0))
2228 {
2229 WARN("Invalid/unsupported bitmap format!\n");
2230 UnmapViewOfFile( ptr );
2231 return 0;
2232 }
2233 }
2234
2235 size = bitmap_info_size(info, DIB_RGB_COLORS);
2236 fix_info = HeapAlloc(GetProcessHeap(), 0, size);
2237 scaled_info = HeapAlloc(GetProcessHeap(), 0, size);
2238
2239 if (!fix_info || !scaled_info) goto end;
2240 memcpy(fix_info, info, size);
2241
2242 pix = *((LPBYTE)info + size);
2243 DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
2244
2245 memcpy(scaled_info, fix_info, size);
2246 bm_type = DIB_GetBitmapInfo( &fix_info->bmiHeader, &width, &height,
2247 &bpp_dummy, &compr_dummy);
2248 if(desiredx != 0)
2249 new_width = desiredx;
2250 else
2251 new_width = width;
2252
2253 if(desiredy != 0)
2254 new_height = height > 0 ? desiredy : -desiredy;
2255 else
2256 new_height = height;
2257
2258 if(bm_type == 0)
2259 {
2260 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader;
2261 core->bcWidth = new_width;
2262 core->bcHeight = new_height;
2263 }
2264 else
2265 {
2266 scaled_info->bmiHeader.biWidth = new_width;
2267 scaled_info->bmiHeader.biHeight = new_height;
2268 }
2269
2270 if (new_height < 0) new_height = -new_height;
2271
2272 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2273 if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end;
2274
2275 bits = (char *)info + size;
2276
2277 if (loadflags & LR_CREATEDIBSECTION)
2278 {
2279 scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
2280 hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0);
2281 }
2282 else
2283 {
2284 if (is_dib_monochrome(fix_info))
2285 hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL);
2286 else
2287 hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height);
2288 }
2289
2290 orig_bm = SelectObject(screen_mem_dc, hbitmap);
2291 StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
2292 SelectObject(screen_mem_dc, orig_bm);
2293
2294 end:
2295 if (screen_mem_dc) DeleteDC(screen_mem_dc);
2296 HeapFree(GetProcessHeap(), 0, scaled_info);
2297 HeapFree(GetProcessHeap(), 0, fix_info);
2298 if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
2299
2300 return hbitmap;
2301 }
2302
2303 /**********************************************************************
2304 * LoadImageA (USER32.@)
2305 *
2306 * See LoadImageW.
2307 */
2308 HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
2309 INT desiredx, INT desiredy, UINT loadflags)
2310 {
2311 HANDLE res;
2312 LPWSTR u_name;
2313
2314 if (!HIWORD(name))
2315 return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
2316
2317 __TRY {
2318 DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2319 u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
2320 MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
2321 }
2322 __EXCEPT_PAGE_FAULT {
2323 SetLastError( ERROR_INVALID_PARAMETER );
2324 return 0;
2325 }
2326 __ENDTRY
2327 res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
2328 HeapFree(GetProcessHeap(), 0, u_name);
2329 return res;
2330 }
2331
2332
2333 /******************************************************************************
2334 * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
2335 *
2336 * PARAMS
2337 * hinst [I] Handle of instance that contains image
2338 * name [I] Name of image
2339 * type [I] Type of image
2340 * desiredx [I] Desired width
2341 * desiredy [I] Desired height
2342 * loadflags [I] Load flags
2343 *
2344 * RETURNS
2345 * Success: Handle to newly loaded image
2346 * Failure: NULL
2347 *
2348 * FIXME: Implementation lacks some features, see LR_ defines in winuser.h
2349 */
2350 HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
2351 INT desiredx, INT desiredy, UINT loadflags )
2352 {
2353 TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n",
2354 hinst,debugstr_w(name),type,desiredx,desiredy,loadflags);
2355
2356 if (loadflags & LR_DEFAULTSIZE) {
2357 if (type == IMAGE_ICON) {
2358 if (!desiredx) desiredx = GetSystemMetrics(SM_CXICON);
2359 if (!desiredy) desiredy = GetSystemMetrics(SM_CYICON);
2360 } else if (type == IMAGE_CURSOR) {
2361 if (!desiredx) desiredx = GetSystemMetrics(SM_CXCURSOR);
2362 if (!desiredy) desiredy = GetSystemMetrics(SM_CYCURSOR);
2363 }
2364 }
2365 if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
2366 switch (type) {
2367 case IMAGE_BITMAP:
2368 return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags );
2369
2370 case IMAGE_ICON:
2371 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2372 if (screen_dc)
2373 {
2374 UINT palEnts = GetSystemPaletteEntries(screen_dc, 0, 0, NULL);
2375 if (palEnts == 0) palEnts = 256;
2376 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2377 palEnts, FALSE, loadflags);
2378 }
2379 break;
2380
2381 case IMAGE_CURSOR:
2382 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2383 1, TRUE, loadflags);
2384 }
2385 return 0;
2386 }
2387
2388 /******************************************************************************
2389 * CopyImage (USER32.@) Creates new image and copies attributes to it
2390 *
2391 * PARAMS
2392 * hnd [I] Handle to image to copy
2393 * type [I] Type of image to copy
2394 * desiredx [I] Desired width of new image
2395 * desiredy [I] Desired height of new image
2396 * flags [I] Copy flags
2397 *
2398 * RETURNS
2399 * Success: Handle to newly created image
2400 * Failure: NULL
2401 *
2402 * BUGS
2403 * Only Windows NT 4.0 supports the LR_COPYRETURNORG flag for bitmaps,
2404 * all other versions (95/2000/XP have been tested) ignore it.
2405 *
2406 * NOTES
2407 * If LR_CREATEDIBSECTION is absent, the copy will be monochrome for
2408 * a monochrome source bitmap or if LR_MONOCHROME is present, otherwise
2409 * the copy will have the same depth as the screen.
2410 * The content of the image will only be copied if the bit depth of the
2411 * original image is compatible with the bit depth of the screen, or
2412 * if the source is a DIB section.
2413 * The LR_MONOCHROME flag is ignored if LR_CREATEDIBSECTION is present.
2414 */
2415 HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
2416 INT desiredy, UINT flags )
2417 {
2418 TRACE("hnd=%p, type=%u, desiredx=%d, desiredy=%d, flags=%x\n",
2419 hnd, type, desiredx, desiredy, flags);
2420
2421 switch (type)
2422 {
2423 case IMAGE_BITMAP:
2424 {
2425 HBITMAP res = NULL;
2426 DIBSECTION ds;
2427 int objSize;
2428 BITMAPINFO * bi;
2429
2430 objSize = GetObjectW( hnd, sizeof(ds), &ds );
2431 if (!objSize) return 0;
2432 if ((desiredx < 0) || (desiredy < 0)) return 0;
2433
2434 if (flags & LR_COPYFROMRESOURCE)
2435 {
2436 FIXME("The flag LR_COPYFROMRESOURCE is not implemented for bitmaps\n");
2437 }
2438
2439 if (desiredx == 0) desiredx = ds.dsBm.bmWidth;
2440 if (desiredy == 0) desiredy = ds.dsBm.bmHeight;
2441
2442 /* Allocate memory for a BITMAPINFOHEADER structure and a
2443 color table. The maximum number of colors in a color table
2444 is 256 which corresponds to a bitmap with depth 8.
2445 Bitmaps with higher depths don't have color tables. */
2446 bi = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
2447 if (!bi) return 0;
2448
2449 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2450 bi->bmiHeader.biPlanes = ds.dsBm.bmPlanes;
2451 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2452 bi->bmiHeader.biCompression = BI_RGB;
2453
2454 if (flags & LR_CREATEDIBSECTION)
2455 {
2456 /* Create a DIB section. LR_MONOCHROME is ignored */
2457 void * bits;
2458 HDC dc = CreateCompatibleDC(NULL);
2459
2460 if (objSize == sizeof(DIBSECTION))
2461 {
2462 /* The source bitmap is a DIB.
2463 Get its attributes to create an exact copy */
2464 memcpy(bi, &ds.dsBmih, sizeof(BITMAPINFOHEADER));
2465 }
2466
2467 /* Get the color table or the color masks */
2468 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2469
2470 bi->bmiHeader.biWidth = desiredx;
2471 bi->bmiHeader.biHeight = desiredy;
2472 bi->bmiHeader.biSizeImage = 0;
2473
2474 res = CreateDIBSection(dc, bi, DIB_RGB_COLORS, &bits, NULL, 0);
2475 DeleteDC(dc);
2476 }
2477 else
2478 {
2479 /* Create a device-dependent bitmap */
2480
2481 BOOL monochrome = (flags & LR_MONOCHROME);
2482
2483 if (objSize == sizeof(DIBSECTION))
2484 {
2485 /* The source bitmap is a DIB section.
2486 Get its attributes */
2487 HDC dc = CreateCompatibleDC(NULL);
2488 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2489 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2490 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2491 DeleteDC(dc);
2492
2493 if (!monochrome && ds.dsBm.bmBitsPixel == 1)
2494 {
2495 /* Look if the colors of the DIB are black and white */
2496
2497 monochrome =
2498 (bi->bmiColors[0].rgbRed == 0xff
2499 && bi->bmiColors[0].rgbGreen == 0xff
2500 && bi->bmiColors[0].rgbBlue == 0xff
2501 && bi->bmiColors[0].rgbReserved == 0
2502 && bi->bmiColors[1].rgbRed == 0
2503 && bi->bmiColors[1].rgbGreen == 0
2504 && bi->bmiColors[1].rgbBlue == 0
2505 && bi->bmiColors[1].rgbReserved == 0)
2506 ||
2507 (bi->bmiColors[0].rgbRed == 0
2508 && bi->bmiColors[0].rgbGreen == 0
2509 && bi->bmiColors[0].rgbBlue == 0
2510 && bi->bmiColors[0].rgbReserved == 0
2511 && bi->bmiColors[1].rgbRed == 0xff
2512 && bi->bmiColors[1].rgbGreen == 0xff
2513 && bi->bmiColors[1].rgbBlue == 0xff
2514 && bi->bmiColors[1].rgbReserved == 0);
2515 }
2516 }
2517 else if (!monochrome)
2518 {
2519 monochrome = ds.dsBm.bmBitsPixel == 1;
2520 }
2521
2522 if (monochrome)
2523 {
2524 res = CreateBitmap(desiredx, desiredy, 1, 1, NULL);
2525 }
2526 else
2527 {
2528 HDC screenDC = GetDC(NULL);
2529 res = CreateCompatibleBitmap(screenDC, desiredx, desiredy);
2530 ReleaseDC(NULL, screenDC);
2531 }
2532 }
2533
2534 if (res)
2535 {
2536 /* Only copy the bitmap if it's a DIB section or if it's
2537 compatible to the screen */
2538 BOOL copyContents;
2539
2540 if (objSize == sizeof(DIBSECTION))
2541 {
2542 copyContents = TRUE;
2543 }
2544 else
2545 {
2546 HDC screenDC = GetDC(NULL);
2547 int screen_depth = GetDeviceCaps(screenDC, BITSPIXEL);
2548 ReleaseDC(NULL, screenDC);
2549
2550 copyContents = (ds.dsBm.bmBitsPixel == 1 || ds.dsBm.bmBitsPixel == screen_depth);
2551 }
2552
2553 if (copyContents)
2554 {
2555 /* The source bitmap may already be selected in a device context,
2556 use GetDIBits/StretchDIBits and not StretchBlt */
2557
2558 HDC dc;
2559 void * bits;
2560
2561 dc = CreateCompatibleDC(NULL);
2562
2563 bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
2564 bi->bmiHeader.biHeight = ds.dsBm.bmHeight;
2565 bi->bmiHeader.biSizeImage = 0;
2566 bi->bmiHeader.biClrUsed = 0;
2567 bi->bmiHeader.biClrImportant = 0;
2568
2569 /* Fill in biSizeImage */
2570 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2571 bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, bi->bmiHeader.biSizeImage);
2572
2573 if (bits)
2574 {
2575 HBITMAP oldBmp;
2576
2577 /* Get the image bits of the source bitmap */
2578 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, bits, bi, DIB_RGB_COLORS);
2579
2580 /* Copy it to the destination bitmap */
2581 oldBmp = SelectObject(dc, res);
2582 StretchDIBits(dc, 0, 0, desiredx, desiredy,
2583 0, 0, ds.dsBm.bmWidth, ds.dsBm.bmHeight,
2584 bits, bi, DIB_RGB_COLORS, SRCCOPY);
2585 SelectObject(dc, oldBmp);
2586
2587 HeapFree(GetProcessHeap(), 0, bits);
2588 }
2589
2590 DeleteDC(dc);
2591 }
2592
2593 if (flags & LR_COPYDELETEORG)
2594 {
2595 DeleteObject(hnd);
2596 }
2597 }
2598 HeapFree(GetProcessHeap(), 0, bi);
2599 return res;
2600 }
2601 case IMAGE_ICON:
2602 return CURSORICON_ExtCopy(hnd,type, desiredx, desiredy, flags);
2603 case IMAGE_CURSOR:
2604 /* Should call CURSORICON_ExtCopy but more testing
2605 * needs to be done before we change this
2606 */
2607 if (flags) FIXME("Flags are ignored\n");
2608 return CopyCursor(hnd);
2609 }
2610 return 0;
2611 }
2612
2613
2614 /******************************************************************************
2615 * LoadBitmapW (USER32.@) Loads bitmap from the executable file
2616 *
2617 * RETURNS
2618 * Success: Handle to specified bitmap
2619 * Failure: NULL
2620 */
2621 HBITMAP WINAPI LoadBitmapW(
2622 HINSTANCE instance, /* [in] Handle to application instance */
2623 LPCWSTR name) /* [in] Address of bitmap resource name */
2624 {
2625 return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2626 }
2627
2628 /**********************************************************************
2629 * LoadBitmapA (USER32.@)
2630 *
2631 * See LoadBitmapW.
2632 */
2633 HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
2634 {
2635 return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2636 }
useful hacks and other patches not (yet) suitable for mainline