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comdlg32: Fix some alignment issues in the Dutch translation.
[wine/hramrach.git] / dlls / user32 / cursoricon.c
blob27d3040a68a22f3b024bb038f3d480351ab3809d
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 * 2007 Henri Verbeet
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 */
24
25 /*
26 * Theory:
27 *
28 * Cursors and icons are stored in a global heap block, with the
29 * following layout:
30 *
31 * CURSORICONINFO info;
32 * BYTE[] ANDbits;
33 * BYTE[] XORbits;
34 *
35 * The bits structures are in the format of a device-dependent bitmap.
36 *
37 * This layout is very sub-optimal, as the bitmap bits are stored in
38 * the X client instead of in the server like other bitmaps; however,
39 * some programs (notably Paint Brush) expect to be able to manipulate
40 * the bits directly :-(
41 */
42
43 #include "config.h"
44 #include "wine/port.h"
45
46 #include <stdarg.h>
47 #include <string.h>
48 #include <stdlib.h>
49
50 #include "windef.h"
51 #include "winbase.h"
52 #include "wingdi.h"
53 #include "winerror.h"
54 #include "wine/winbase16.h"
55 #include "wine/winuser16.h"
56 #include "wine/exception.h"
57 #include "wine/server.h"
58 #include "controls.h"
59 #include "user_private.h"
60 #include "wine/debug.h"
61
62 WINE_DEFAULT_DEBUG_CHANNEL(cursor);
63 WINE_DECLARE_DEBUG_CHANNEL(icon);
64 WINE_DECLARE_DEBUG_CHANNEL(resource);
65
66 #include "pshpack1.h"
67
68 typedef struct {
69 BYTE bWidth;
70 BYTE bHeight;
71 BYTE bColorCount;
72 BYTE bReserved;
73 WORD xHotspot;
74 WORD yHotspot;
75 DWORD dwDIBSize;
76 DWORD dwDIBOffset;
77 } CURSORICONFILEDIRENTRY;
78
79 typedef struct
80 {
81 WORD idReserved;
82 WORD idType;
83 WORD idCount;
84 CURSORICONFILEDIRENTRY idEntries[1];
85 } CURSORICONFILEDIR;
86
87 #include "poppack.h"
88
89 static RECT CURSOR_ClipRect; /* Cursor clipping rect */
90
91 static HDC screen_dc;
92
93 static const WCHAR DISPLAYW[] = {'D','I','S','P','L','A','Y',0};
94
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 * User objects management
132 */
133
134 struct cursoricon_object
135 {
136 struct user_object obj; /* object header */
137 ULONG_PTR param; /* opaque param used by 16-bit code */
138 /* followed by cursor data in CURSORICONINFO format */
139 };
140
141 static HICON alloc_icon_handle( unsigned int size )
142 {
143 struct cursoricon_object *obj = HeapAlloc( GetProcessHeap(), 0, sizeof(*obj) + size );
144 if (!obj) return 0;
145 obj->param = 0;
146 return alloc_user_handle( &obj->obj, USER_ICON );
147 }
148
149 static struct tagCURSORICONINFO *get_icon_ptr( HICON handle )
150 {
151 struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON );
152 if (obj == OBJ_OTHER_PROCESS)
153 {
154 WARN( "icon handle %p from other process\n", handle );
155 obj = NULL;
156 }
157 return obj ? (struct tagCURSORICONINFO *)(obj + 1) : NULL;
158 }
159
160 static void release_icon_ptr( HICON handle, struct tagCURSORICONINFO *ptr )
161 {
162 release_user_handle_ptr( (struct cursoricon_object *)ptr - 1 );
163 }
164
165 static BOOL free_icon_handle( HICON handle )
166 {
167 struct cursoricon_object *obj = free_user_handle( handle, USER_ICON );
168
169 if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle );
170 else if (obj)
171 {
172 ULONG_PTR param = obj->param;
173 HeapFree( GetProcessHeap(), 0, obj );
174 if (wow_handlers.free_icon_param && param) wow_handlers.free_icon_param( param );
175 USER_Driver->pDestroyCursorIcon( handle );
176 return TRUE;
177 }
178 return FALSE;
179 }
180
181 ULONG_PTR get_icon_param( HICON handle )
182 {
183 ULONG_PTR ret = 0;
184 struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON );
185
186 if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle );
187 else if (obj)
188 {
189 ret = obj->param;
190 release_user_handle_ptr( obj );
191 }
192 return ret;
193 }
194
195 ULONG_PTR set_icon_param( HICON handle, ULONG_PTR param )
196 {
197 ULONG_PTR ret = 0;
198 struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON );
199
200 if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle );
201 else if (obj)
202 {
203 ret = obj->param;
204 obj->param = param;
205 release_user_handle_ptr( obj );
206 }
207 return ret;
208 }
209
210
211 /***********************************************************************
212 * map_fileW
213 *
214 * Helper function to map a file to memory:
215 * name - file name
216 * [RETURN] ptr - pointer to mapped file
217 * [RETURN] filesize - pointer size of file to be stored if not NULL
218 */
219 static void *map_fileW( LPCWSTR name, LPDWORD filesize )
220 {
221 HANDLE hFile, hMapping;
222 LPVOID ptr = NULL;
223
224 hFile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL,
225 OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, 0 );
226 if (hFile != INVALID_HANDLE_VALUE)
227 {
228 hMapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
229 if (hMapping)
230 {
231 ptr = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 );
232 CloseHandle( hMapping );
233 if (filesize)
234 *filesize = GetFileSize( hFile, NULL );
235 }
236 CloseHandle( hFile );
237 }
238 return ptr;
239 }
240
241
242 /***********************************************************************
243 * get_bitmap_width_bytes
244 *
245 * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
246 * data.
247 */
248 static int get_bitmap_width_bytes( int width, int bpp )
249 {
250 switch(bpp)
251 {
252 case 1:
253 return 2 * ((width+15) / 16);
254 case 4:
255 return 2 * ((width+3) / 4);
256 case 24:
257 width *= 3;
258 /* fall through */
259 case 8:
260 return width + (width & 1);
261 case 16:
262 case 15:
263 return width * 2;
264 case 32:
265 return width * 4;
266 default:
267 WARN("Unknown depth %d, please report.\n", bpp );
268 }
269 return -1;
270 }
271
272
273 /***********************************************************************
274 * get_dib_width_bytes
275 *
276 * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
277 */
278 static int get_dib_width_bytes( int width, int depth )
279 {
280 int words;
281
282 switch(depth)
283 {
284 case 1: words = (width + 31) / 32; break;
285 case 4: words = (width + 7) / 8; break;
286 case 8: words = (width + 3) / 4; break;
287 case 15:
288 case 16: words = (width + 1) / 2; break;
289 case 24: words = (width * 3 + 3)/4; break;
290 default:
291 WARN("(%d): Unsupported depth\n", depth );
292 /* fall through */
293 case 32:
294 words = width;
295 }
296 return 4 * words;
297 }
298
299
300 /***********************************************************************
301 * bitmap_info_size
302 *
303 * Return the size of the bitmap info structure including color table.
304 */
305 static int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
306 {
307 int colors, masks = 0;
308
309 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
310 {
311 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
312 colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
313 return sizeof(BITMAPCOREHEADER) + colors *
314 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
315 }
316 else /* assume BITMAPINFOHEADER */
317 {
318 colors = info->bmiHeader.biClrUsed;
319 if (colors > 256) /* buffer overflow otherwise */
320 colors = 256;
321 if (!colors && (info->bmiHeader.biBitCount <= 8))
322 colors = 1 << info->bmiHeader.biBitCount;
323 if (info->bmiHeader.biCompression == BI_BITFIELDS) masks = 3;
324 return info->bmiHeader.biSize + masks * sizeof(DWORD) + colors *
325 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
326 }
327 }
328
329
330 /***********************************************************************
331 * is_dib_monochrome
332 *
333 * Returns whether a DIB can be converted to a monochrome DDB.
334 *
335 * A DIB can be converted if its color table contains only black and
336 * white. Black must be the first color in the color table.
337 *
338 * Note : If the first color in the color table is white followed by
339 * black, we can't convert it to a monochrome DDB with
340 * SetDIBits, because black and white would be inverted.
341 */
342 static BOOL is_dib_monochrome( const BITMAPINFO* info )
343 {
344 if (info->bmiHeader.biBitCount != 1) return FALSE;
345
346 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
347 {
348 const RGBTRIPLE *rgb = ((const BITMAPCOREINFO*)info)->bmciColors;
349
350 /* Check if the first color is black */
351 if ((rgb->rgbtRed == 0) && (rgb->rgbtGreen == 0) && (rgb->rgbtBlue == 0))
352 {
353 rgb++;
354
355 /* Check if the second color is white */
356 return ((rgb->rgbtRed == 0xff) && (rgb->rgbtGreen == 0xff)
357 && (rgb->rgbtBlue == 0xff));
358 }
359 else return FALSE;
360 }
361 else /* assume BITMAPINFOHEADER */
362 {
363 const RGBQUAD *rgb = info->bmiColors;
364
365 /* Check if the first color is black */
366 if ((rgb->rgbRed == 0) && (rgb->rgbGreen == 0) &&
367 (rgb->rgbBlue == 0) && (rgb->rgbReserved == 0))
368 {
369 rgb++;
370
371 /* Check if the second color is white */
372 return ((rgb->rgbRed == 0xff) && (rgb->rgbGreen == 0xff)
373 && (rgb->rgbBlue == 0xff) && (rgb->rgbReserved == 0));
374 }
375 else return FALSE;
376 }
377 }
378
379 /***********************************************************************
380 * DIB_GetBitmapInfo
381 *
382 * Get the info from a bitmap header.
383 * Return 1 for INFOHEADER, 0 for COREHEADER,
384 */
385 static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
386 LONG *height, WORD *bpp, DWORD *compr )
387 {
388 if (header->biSize == sizeof(BITMAPCOREHEADER))
389 {
390 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header;
391 *width = core->bcWidth;
392 *height = core->bcHeight;
393 *bpp = core->bcBitCount;
394 *compr = 0;
395 return 0;
396 }
397 else if (header->biSize >= sizeof(BITMAPINFOHEADER))
398 {
399 *width = header->biWidth;
400 *height = header->biHeight;
401 *bpp = header->biBitCount;
402 *compr = header->biCompression;
403 return 1;
404 }
405 ERR("(%d): unknown/wrong size for header\n", header->biSize );
406 return -1;
407 }
408
409 /**********************************************************************
410 * CURSORICON_FindSharedIcon
411 */
412 static HICON CURSORICON_FindSharedIcon( HMODULE hModule, HRSRC hRsrc )
413 {
414 HICON hIcon = 0;
415 ICONCACHE *ptr;
416
417 EnterCriticalSection( &IconCrst );
418
419 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
420 if ( ptr->hModule == hModule && ptr->hRsrc == hRsrc )
421 {
422 ptr->count++;
423 hIcon = ptr->hIcon;
424 break;
425 }
426
427 LeaveCriticalSection( &IconCrst );
428
429 return hIcon;
430 }
431
432 /*************************************************************************
433 * CURSORICON_FindCache
434 *
435 * Given a handle, find the corresponding cache element
436 *
437 * PARAMS
438 * Handle [I] handle to an Image
439 *
440 * RETURNS
441 * Success: The cache entry
442 * Failure: NULL
443 *
444 */
445 static ICONCACHE* CURSORICON_FindCache(HICON hIcon)
446 {
447 ICONCACHE *ptr;
448 ICONCACHE *pRet=NULL;
449 BOOL IsFound = FALSE;
450
451 EnterCriticalSection( &IconCrst );
452
453 for (ptr = IconAnchor; ptr != NULL && !IsFound; ptr = ptr->next)
454 {
455 if ( hIcon == ptr->hIcon )
456 {
457 IsFound = TRUE;
458 pRet = ptr;
459 }
460 }
461
462 LeaveCriticalSection( &IconCrst );
463
464 return pRet;
465 }
466
467 /**********************************************************************
468 * CURSORICON_AddSharedIcon
469 */
470 static void CURSORICON_AddSharedIcon( HMODULE hModule, HRSRC hRsrc, HRSRC hGroupRsrc, HICON hIcon )
471 {
472 ICONCACHE *ptr = HeapAlloc( GetProcessHeap(), 0, sizeof(ICONCACHE) );
473 if ( !ptr ) return;
474
475 ptr->hModule = hModule;
476 ptr->hRsrc = hRsrc;
477 ptr->hIcon = hIcon;
478 ptr->hGroupRsrc = hGroupRsrc;
479 ptr->count = 1;
480
481 EnterCriticalSection( &IconCrst );
482 ptr->next = IconAnchor;
483 IconAnchor = ptr;
484 LeaveCriticalSection( &IconCrst );
485 }
486
487 /**********************************************************************
488 * CURSORICON_DelSharedIcon
489 */
490 static INT CURSORICON_DelSharedIcon( HICON hIcon )
491 {
492 INT count = -1;
493 ICONCACHE *ptr;
494
495 EnterCriticalSection( &IconCrst );
496
497 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
498 if ( ptr->hIcon == hIcon )
499 {
500 if ( ptr->count > 0 ) ptr->count--;
501 count = ptr->count;
502 break;
503 }
504
505 LeaveCriticalSection( &IconCrst );
506
507 return count;
508 }
509
510 /**********************************************************************
511 * get_icon_size
512 */
513 BOOL get_icon_size( HICON handle, SIZE *size )
514 {
515 CURSORICONINFO *info;
516
517 if (!(info = get_icon_ptr( handle ))) return FALSE;
518 size->cx = info->nWidth;
519 size->cy = info->nHeight;
520 release_icon_ptr( handle, info );
521 return TRUE;
522 }
523
524 /*
525 * The following macro functions account for the irregularities of
526 * accessing cursor and icon resources in files and resource entries.
527 */
528 typedef BOOL (*fnGetCIEntry)( LPVOID dir, int n,
529 int *width, int *height, int *bits );
530
531 /**********************************************************************
532 * CURSORICON_FindBestIcon
533 *
534 * Find the icon closest to the requested size and bit depth.
535 */
536 static int CURSORICON_FindBestIcon( LPVOID dir, fnGetCIEntry get_entry,
537 int width, int height, int depth )
538 {
539 int i, cx, cy, bits, bestEntry = -1;
540 UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
541 UINT iTempXDiff, iTempYDiff, iTempColorDiff;
542
543 /* Find Best Fit */
544 iTotalDiff = 0xFFFFFFFF;
545 iColorDiff = 0xFFFFFFFF;
546 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
547 {
548 iTempXDiff = abs(width - cx);
549 iTempYDiff = abs(height - cy);
550
551 if(iTotalDiff > (iTempXDiff + iTempYDiff))
552 {
553 iXDiff = iTempXDiff;
554 iYDiff = iTempYDiff;
555 iTotalDiff = iXDiff + iYDiff;
556 }
557 }
558
559 /* Find Best Colors for Best Fit */
560 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
561 {
562 if(abs(width - cx) == iXDiff && abs(height - cy) == iYDiff)
563 {
564 iTempColorDiff = abs(depth - bits);
565 if(iColorDiff > iTempColorDiff)
566 {
567 bestEntry = i;
568 iColorDiff = iTempColorDiff;
569 }
570 }
571 }
572
573 return bestEntry;
574 }
575
576 static BOOL CURSORICON_GetResIconEntry( LPVOID dir, int n,
577 int *width, int *height, int *bits )
578 {
579 CURSORICONDIR *resdir = dir;
580 ICONRESDIR *icon;
581
582 if ( resdir->idCount <= n )
583 return FALSE;
584 icon = &resdir->idEntries[n].ResInfo.icon;
585 *width = icon->bWidth;
586 *height = icon->bHeight;
587 *bits = resdir->idEntries[n].wBitCount;
588 return TRUE;
589 }
590
591 /**********************************************************************
592 * CURSORICON_FindBestCursor
593 *
594 * Find the cursor closest to the requested size.
595 *
596 * FIXME: parameter 'color' ignored.
597 */
598 static int CURSORICON_FindBestCursor( LPVOID dir, fnGetCIEntry get_entry,
599 int width, int height, int depth )
600 {
601 int i, maxwidth, maxheight, cx, cy, bits, bestEntry = -1;
602
603 /* Double height to account for AND and XOR masks */
604
605 height *= 2;
606
607 /* First find the largest one smaller than or equal to the requested size*/
608
609 maxwidth = maxheight = 0;
610 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
611 {
612 if ((cx <= width) && (cy <= height) &&
613 (cx > maxwidth) && (cy > maxheight))
614 {
615 bestEntry = i;
616 maxwidth = cx;
617 maxheight = cy;
618 }
619 }
620 if (bestEntry != -1) return bestEntry;
621
622 /* Now find the smallest one larger than the requested size */
623
624 maxwidth = maxheight = 255;
625 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
626 {
627 if (((cx < maxwidth) && (cy < maxheight)) || (bestEntry == -1))
628 {
629 bestEntry = i;
630 maxwidth = cx;
631 maxheight = cy;
632 }
633 }
634
635 return bestEntry;
636 }
637
638 static BOOL CURSORICON_GetResCursorEntry( LPVOID dir, int n,
639 int *width, int *height, int *bits )
640 {
641 CURSORICONDIR *resdir = dir;
642 CURSORDIR *cursor;
643
644 if ( resdir->idCount <= n )
645 return FALSE;
646 cursor = &resdir->idEntries[n].ResInfo.cursor;
647 *width = cursor->wWidth;
648 *height = cursor->wHeight;
649 *bits = resdir->idEntries[n].wBitCount;
650 return TRUE;
651 }
652
653 static CURSORICONDIRENTRY *CURSORICON_FindBestIconRes( CURSORICONDIR * dir,
654 int width, int height, int depth )
655 {
656 int n;
657
658 n = CURSORICON_FindBestIcon( dir, CURSORICON_GetResIconEntry,
659 width, height, depth );
660 if ( n < 0 )
661 return NULL;
662 return &dir->idEntries[n];
663 }
664
665 static CURSORICONDIRENTRY *CURSORICON_FindBestCursorRes( CURSORICONDIR *dir,
666 int width, int height, int depth )
667 {
668 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetResCursorEntry,
669 width, height, depth );
670 if ( n < 0 )
671 return NULL;
672 return &dir->idEntries[n];
673 }
674
675 static BOOL CURSORICON_GetFileEntry( LPVOID dir, int n,
676 int *width, int *height, int *bits )
677 {
678 CURSORICONFILEDIR *filedir = dir;
679 CURSORICONFILEDIRENTRY *entry;
680
681 if ( filedir->idCount <= n )
682 return FALSE;
683 entry = &filedir->idEntries[n];
684 *width = entry->bWidth;
685 *height = entry->bHeight;
686 *bits = entry->bColorCount;
687 return TRUE;
688 }
689
690 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestCursorFile( CURSORICONFILEDIR *dir,
691 int width, int height, int depth )
692 {
693 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetFileEntry,
694 width, height, depth );
695 if ( n < 0 )
696 return NULL;
697 return &dir->idEntries[n];
698 }
699
700 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestIconFile( CURSORICONFILEDIR *dir,
701 int width, int height, int depth )
702 {
703 int n = CURSORICON_FindBestIcon( dir, CURSORICON_GetFileEntry,
704 width, height, depth );
705 if ( n < 0 )
706 return NULL;
707 return &dir->idEntries[n];
708 }
709
710 /***********************************************************************
711 * stretch_blt_icon
712 *
713 * A helper function that stretches a bitmap buffer into an HBITMAP.
714 *
715 * PARAMS
716 * hDest [I] The handle of the destination bitmap.
717 * pDestInfo [I] The BITMAPINFO of the destination bitmap.
718 * pSrcInfo [I] The BITMAPINFO of the source bitmap.
719 * pSrcBits [I] A pointer to the source bitmap buffer.
720 **/
721 static BOOL stretch_blt_icon(HBITMAP hDest, BITMAPINFO *pDestInfo, BITMAPINFO *pSrcInfo, char *pSrcBits)
722 {
723 HBITMAP hOld;
724 BOOL res = FALSE;
725 HDC hdcMem = CreateCompatibleDC(screen_dc);
726
727 if (hdcMem)
728 {
729 hOld = SelectObject(hdcMem, hDest);
730 res = StretchDIBits(hdcMem,
731 0, 0, pDestInfo->bmiHeader.biWidth, pDestInfo->bmiHeader.biHeight,
732 0, 0, pSrcInfo->bmiHeader.biWidth, pSrcInfo->bmiHeader.biHeight,
733 pSrcBits, pSrcInfo, DIB_RGB_COLORS, SRCCOPY);
734 SelectObject(hdcMem, hOld);
735 DeleteDC( hdcMem );
736 }
737
738 return res;
739 }
740
741 static HICON CURSORICON_CreateIconFromBMI( BITMAPINFO *bmi,
742 POINT16 hotspot, BOOL bIcon,
743 DWORD dwVersion,
744 INT width, INT height,
745 UINT cFlag )
746 {
747 HICON hObj;
748 int sizeAnd, sizeXor;
749 HBITMAP hAndBits = 0, hXorBits = 0; /* error condition for later */
750 BITMAP bmpXor, bmpAnd;
751 BOOL do_stretch;
752 INT size;
753 BITMAPINFO *pSrcInfo, *pDestInfo;
754
755 if (dwVersion == 0x00020000)
756 {
757 FIXME_(cursor)("\t2.xx resources are not supported\n");
758 return 0;
759 }
760
761 /* Check bitmap header */
762
763 if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) &&
764 (bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) ||
765 bmi->bmiHeader.biCompression != BI_RGB) )
766 {
767 WARN_(cursor)("\tinvalid resource bitmap header.\n");
768 return 0;
769 }
770
771 size = bitmap_info_size( bmi, DIB_RGB_COLORS );
772
773 if (!width) width = bmi->bmiHeader.biWidth;
774 if (!height) height = bmi->bmiHeader.biHeight/2;
775 do_stretch = (bmi->bmiHeader.biHeight/2 != height) ||
776 (bmi->bmiHeader.biWidth != width);
777
778 /* Scale the hotspot */
779 if (do_stretch && hotspot.x != ICON_HOTSPOT && hotspot.y != ICON_HOTSPOT)
780 {
781 hotspot.x = (hotspot.x * width) / bmi->bmiHeader.biWidth;
782 hotspot.y = (hotspot.y * height) / (bmi->bmiHeader.biHeight / 2);
783 }
784
785 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
786 if (screen_dc)
787 {
788 /* Make sure we have room for the monochrome bitmap later on.
789 * Note that BITMAPINFOINFO and BITMAPCOREHEADER are the same
790 * up to and including the biBitCount. In-memory icon resource
791 * format is as follows:
792 *
793 * BITMAPINFOHEADER icHeader // DIB header
794 * RGBQUAD icColors[] // Color table
795 * BYTE icXOR[] // DIB bits for XOR mask
796 * BYTE icAND[] // DIB bits for AND mask
797 */
798
799 pSrcInfo = HeapAlloc( GetProcessHeap(), 0,
800 max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD)));
801 pDestInfo = HeapAlloc( GetProcessHeap(), 0,
802 max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD)));
803 if (pSrcInfo && pDestInfo)
804 {
805 memcpy( pSrcInfo, bmi, size );
806 pSrcInfo->bmiHeader.biHeight /= 2;
807
808 memcpy( pDestInfo, bmi, size );
809 pDestInfo->bmiHeader.biWidth = width;
810 pDestInfo->bmiHeader.biHeight = height;
811 pDestInfo->bmiHeader.biSizeImage = 0;
812
813 /* Create the XOR bitmap */
814 if(pSrcInfo->bmiHeader.biBitCount == 32)
815 {
816 void *pDIBBuffer = NULL;
817 hXorBits = CreateDIBSection(screen_dc, pDestInfo, DIB_RGB_COLORS, &pDIBBuffer, NULL, 0);
818
819 if(hXorBits)
820 {
821 if (!stretch_blt_icon(hXorBits, pDestInfo, pSrcInfo, (char*)bmi + size))
822 {
823 DeleteObject(hXorBits);
824 hXorBits = 0;
825 }
826 }
827 }
828 else
829 {
830 if (do_stretch)
831 {
832 hXorBits = CreateCompatibleBitmap(screen_dc, width, height);
833 if (hXorBits)
834 {
835 if (!stretch_blt_icon(hXorBits, pDestInfo, pSrcInfo, (char*)bmi + size))
836 {
837 DeleteObject(hXorBits);
838 hXorBits = 0;
839 }
840 }
841 }
842 else
843 {
844 if (is_dib_monochrome(bmi))
845 {
846 hXorBits = CreateBitmap(width, height, 1, 1, NULL);
847 SetDIBits(screen_dc, hXorBits, 0, height,
848 (char *)bmi + size, pSrcInfo, DIB_RGB_COLORS);
849 }
850 else
851 hXorBits = CreateDIBitmap(screen_dc, &pSrcInfo->bmiHeader,
852 CBM_INIT, (char *)bmi + size, pSrcInfo, DIB_RGB_COLORS);
853 }
854 }
855
856 if( hXorBits )
857 {
858 char* xbits = (char *)bmi + size +
859 get_dib_width_bytes( bmi->bmiHeader.biWidth,
860 bmi->bmiHeader.biBitCount ) * abs( bmi->bmiHeader.biHeight ) / 2;
861
862 pSrcInfo->bmiHeader.biBitCount = 1;
863 if (pSrcInfo->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
864 {
865 RGBQUAD *rgb = pSrcInfo->bmiColors;
866
867 pSrcInfo->bmiHeader.biClrUsed = pSrcInfo->bmiHeader.biClrImportant = 2;
868 rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
869 rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
870 rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
871 }
872 else
873 {
874 RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)pSrcInfo) + 1);
875
876 rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
877 rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
878 }
879
880 /* Create the AND bitmap */
881 if (do_stretch)
882 {
883 hAndBits = CreateBitmap(width, height, 1, 1, NULL);
884
885 if (!stretch_blt_icon(hAndBits, pDestInfo, pSrcInfo, xbits))
886 {
887 DeleteObject(hAndBits);
888 hAndBits = 0;
889 }
890 }
891 else
892 {
893 hAndBits = CreateBitmap(width, height, 1, 1, NULL);
894 SetDIBits(screen_dc, hAndBits, 0, height,
895 xbits, pSrcInfo, DIB_RGB_COLORS);
896 }
897
898 if( !hAndBits )
899 {
900 DeleteObject( hXorBits );
901 hXorBits = 0;
902 }
903 }
904 }
905
906 HeapFree( GetProcessHeap(), 0, pSrcInfo );
907 HeapFree( GetProcessHeap(), 0, pDestInfo );
908 }
909
910 if( !hXorBits || !hAndBits )
911 {
912 WARN_(cursor)("\tunable to create an icon bitmap.\n");
913 return 0;
914 }
915
916 /* Now create the CURSORICONINFO structure */
917 GetObjectA( hXorBits, sizeof(bmpXor), &bmpXor );
918 GetObjectA( hAndBits, sizeof(bmpAnd), &bmpAnd );
919 sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes;
920 sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
921
922 hObj = alloc_icon_handle( sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
923 if (hObj)
924 {
925 CURSORICONINFO *info = get_icon_ptr( hObj );
926
927 info->ptHotSpot.x = hotspot.x;
928 info->ptHotSpot.y = hotspot.y;
929 info->nWidth = bmpXor.bmWidth;
930 info->nHeight = bmpXor.bmHeight;
931 info->nWidthBytes = bmpXor.bmWidthBytes;
932 info->bPlanes = bmpXor.bmPlanes;
933 info->bBitsPerPixel = bmpXor.bmBitsPixel;
934
935 /* Transfer the bitmap bits to the CURSORICONINFO structure */
936
937 GetBitmapBits( hAndBits, sizeAnd, info + 1 );
938 GetBitmapBits( hXorBits, sizeXor, (char *)(info + 1) + sizeAnd );
939 release_icon_ptr( hObj, info );
940 USER_Driver->pCreateCursorIcon( hObj, info );
941 }
942
943 DeleteObject( hAndBits );
944 DeleteObject( hXorBits );
945 return hObj;
946 }
947
948
949 /**********************************************************************
950 * .ANI cursor support
951 */
952 #define RIFF_FOURCC( c0, c1, c2, c3 ) \
953 ( (DWORD)(BYTE)(c0) | ( (DWORD)(BYTE)(c1) << 8 ) | \
954 ( (DWORD)(BYTE)(c2) << 16 ) | ( (DWORD)(BYTE)(c3) << 24 ) )
955
956 #define ANI_RIFF_ID RIFF_FOURCC('R', 'I', 'F', 'F')
957 #define ANI_LIST_ID RIFF_FOURCC('L', 'I', 'S', 'T')
958 #define ANI_ACON_ID RIFF_FOURCC('A', 'C', 'O', 'N')
959 #define ANI_anih_ID RIFF_FOURCC('a', 'n', 'i', 'h')
960 #define ANI_seq__ID RIFF_FOURCC('s', 'e', 'q', ' ')
961 #define ANI_fram_ID RIFF_FOURCC('f', 'r', 'a', 'm')
962
963 #define ANI_FLAG_ICON 0x1
964 #define ANI_FLAG_SEQUENCE 0x2
965
966 typedef struct {
967 DWORD header_size;
968 DWORD num_frames;
969 DWORD num_steps;
970 DWORD width;
971 DWORD height;
972 DWORD bpp;
973 DWORD num_planes;
974 DWORD display_rate;
975 DWORD flags;
976 } ani_header;
977
978 typedef struct {
979 DWORD data_size;
980 const unsigned char *data;
981 } riff_chunk_t;
982
983 static void dump_ani_header( const ani_header *header )
984 {
985 TRACE(" header size: %d\n", header->header_size);
986 TRACE(" frames: %d\n", header->num_frames);
987 TRACE(" steps: %d\n", header->num_steps);
988 TRACE(" width: %d\n", header->width);
989 TRACE(" height: %d\n", header->height);
990 TRACE(" bpp: %d\n", header->bpp);
991 TRACE(" planes: %d\n", header->num_planes);
992 TRACE(" display rate: %d\n", header->display_rate);
993 TRACE(" flags: 0x%08x\n", header->flags);
994 }
995
996
997 /*
998 * RIFF:
999 * DWORD "RIFF"
1000 * DWORD size
1001 * DWORD riff_id
1002 * BYTE[] data
1003 *
1004 * LIST:
1005 * DWORD "LIST"
1006 * DWORD size
1007 * DWORD list_id
1008 * BYTE[] data
1009 *
1010 * CHUNK:
1011 * DWORD chunk_id
1012 * DWORD size
1013 * BYTE[] data
1014 */
1015 static void riff_find_chunk( DWORD chunk_id, DWORD chunk_type, const riff_chunk_t *parent_chunk, riff_chunk_t *chunk )
1016 {
1017 const unsigned char *ptr = parent_chunk->data;
1018 const unsigned char *end = parent_chunk->data + (parent_chunk->data_size - (2 * sizeof(DWORD)));
1019
1020 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) end -= sizeof(DWORD);
1021
1022 while (ptr < end)
1023 {
1024 if ((!chunk_type && *(const DWORD *)ptr == chunk_id )
1025 || (chunk_type && *(const DWORD *)ptr == chunk_type && *((const DWORD *)ptr + 2) == chunk_id ))
1026 {
1027 ptr += sizeof(DWORD);
1028 chunk->data_size = (*(const DWORD *)ptr + 1) & ~1;
1029 ptr += sizeof(DWORD);
1030 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) ptr += sizeof(DWORD);
1031 chunk->data = ptr;
1032
1033 return;
1034 }
1035
1036 ptr += sizeof(DWORD);
1037 ptr += (*(const DWORD *)ptr + 1) & ~1;
1038 ptr += sizeof(DWORD);
1039 }
1040 }
1041
1042
1043 /*
1044 * .ANI layout:
1045 *
1046 * RIFF:'ACON' RIFF chunk
1047 * |- CHUNK:'anih' Header
1048 * |- CHUNK:'seq ' Sequence information (optional)
1049 * \- LIST:'fram' Frame list
1050 * |- CHUNK:icon Cursor frames
1051 * |- CHUNK:icon
1052 * |- ...
1053 * \- CHUNK:icon
1054 */
1055 static HCURSOR CURSORICON_CreateIconFromANI( const LPBYTE bits, DWORD bits_size,
1056 INT width, INT height, INT depth )
1057 {
1058 HCURSOR cursor;
1059 ani_header header = {0};
1060 LPBYTE frame_bits = 0;
1061 POINT16 hotspot;
1062 CURSORICONFILEDIRENTRY *entry;
1063
1064 riff_chunk_t root_chunk = { bits_size, bits };
1065 riff_chunk_t ACON_chunk = {0};
1066 riff_chunk_t anih_chunk = {0};
1067 riff_chunk_t fram_chunk = {0};
1068 const unsigned char *icon_data;
1069
1070 TRACE("bits %p, bits_size %d\n", bits, bits_size);
1071
1072 if (!bits) return 0;
1073
1074 riff_find_chunk( ANI_ACON_ID, ANI_RIFF_ID, &root_chunk, &ACON_chunk );
1075 if (!ACON_chunk.data)
1076 {
1077 ERR("Failed to get root chunk.\n");
1078 return 0;
1079 }
1080
1081 riff_find_chunk( ANI_anih_ID, 0, &ACON_chunk, &anih_chunk );
1082 if (!anih_chunk.data)
1083 {
1084 ERR("Failed to get 'anih' chunk.\n");
1085 return 0;
1086 }
1087 memcpy( &header, anih_chunk.data, sizeof(header) );
1088 dump_ani_header( &header );
1089
1090 riff_find_chunk( ANI_fram_ID, ANI_LIST_ID, &ACON_chunk, &fram_chunk );
1091 if (!fram_chunk.data)
1092 {
1093 ERR("Failed to get icon list.\n");
1094 return 0;
1095 }
1096
1097 /* FIXME: For now, just load the first frame. Before we can load all the
1098 * frames, we need to write the needed code in wineserver, etc. to handle
1099 * cursors. Once this code is written, we can extend it to support .ani
1100 * cursors and then update user32 and winex11.drv to load all frames.
1101 *
1102 * Hopefully this will at least make some games (C&C3, etc.) more playable
1103 * in the meantime.
1104 */
1105 FIXME("Loading all frames for .ani cursors not implemented.\n");
1106 icon_data = fram_chunk.data + (2 * sizeof(DWORD));
1107
1108 entry = CURSORICON_FindBestIconFile( (CURSORICONFILEDIR *) icon_data,
1109 width, height, depth );
1110
1111 frame_bits = HeapAlloc( GetProcessHeap(), 0, entry->dwDIBSize );
1112 memcpy( frame_bits, icon_data + entry->dwDIBOffset, entry->dwDIBSize );
1113
1114 if (!header.width || !header.height)
1115 {
1116 header.width = entry->bWidth;
1117 header.height = entry->bHeight;
1118 }
1119
1120 hotspot.x = entry->xHotspot;
1121 hotspot.y = entry->yHotspot;
1122
1123 cursor = CURSORICON_CreateIconFromBMI( (BITMAPINFO *) frame_bits, hotspot,
1124 FALSE, 0x00030000, header.width, header.height, 0 );
1125
1126 HeapFree( GetProcessHeap(), 0, frame_bits );
1127
1128 return cursor;
1129 }
1130
1131
1132 /**********************************************************************
1133 * CreateIconFromResourceEx (USER32.@)
1134 *
1135 * FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
1136 * with cbSize parameter as well.
1137 */
1138 HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
1139 BOOL bIcon, DWORD dwVersion,
1140 INT width, INT height,
1141 UINT cFlag )
1142 {
1143 POINT16 hotspot;
1144 BITMAPINFO *bmi;
1145
1146 hotspot.x = ICON_HOTSPOT;
1147 hotspot.y = ICON_HOTSPOT;
1148
1149 TRACE_(cursor)("%p (%u bytes), ver %08x, %ix%i %s %s\n",
1150 bits, cbSize, dwVersion, width, height,
1151 bIcon ? "icon" : "cursor", (cFlag & LR_MONOCHROME) ? "mono" : "" );
1152
1153 if (bIcon)
1154 bmi = (BITMAPINFO *)bits;
1155 else /* get the hotspot */
1156 {
1157 POINT16 *pt = (POINT16 *)bits;
1158 hotspot = *pt;
1159 bmi = (BITMAPINFO *)(pt + 1);
1160 }
1161
1162 return CURSORICON_CreateIconFromBMI( bmi, hotspot, bIcon, dwVersion,
1163 width, height, cFlag );
1164 }
1165
1166
1167 /**********************************************************************
1168 * CreateIconFromResource (USER32.@)
1169 */
1170 HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize,
1171 BOOL bIcon, DWORD dwVersion)
1172 {
1173 return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
1174 }
1175
1176
1177 static HICON CURSORICON_LoadFromFile( LPCWSTR filename,
1178 INT width, INT height, INT depth,
1179 BOOL fCursor, UINT loadflags)
1180 {
1181 CURSORICONFILEDIRENTRY *entry;
1182 CURSORICONFILEDIR *dir;
1183 DWORD filesize = 0;
1184 HICON hIcon = 0;
1185 LPBYTE bits;
1186 POINT16 hotspot;
1187
1188 TRACE("loading %s\n", debugstr_w( filename ));
1189
1190 bits = map_fileW( filename, &filesize );
1191 if (!bits)
1192 return hIcon;
1193
1194 /* Check for .ani. */
1195 if (memcmp( bits, "RIFF", 4 ) == 0)
1196 {
1197 hIcon = CURSORICON_CreateIconFromANI( bits, filesize, width, height,
1198 depth );
1199 goto end;
1200 }
1201
1202 dir = (CURSORICONFILEDIR*) bits;
1203 if ( filesize < sizeof(*dir) )
1204 goto end;
1205
1206 if ( filesize < (sizeof(*dir) + sizeof(dir->idEntries[0])*(dir->idCount-1)) )
1207 goto end;
1208
1209 if ( fCursor )
1210 entry = CURSORICON_FindBestCursorFile( dir, width, height, depth );
1211 else
1212 entry = CURSORICON_FindBestIconFile( dir, width, height, depth );
1213
1214 if ( !entry )
1215 goto end;
1216
1217 /* check that we don't run off the end of the file */
1218 if ( entry->dwDIBOffset > filesize )
1219 goto end;
1220 if ( entry->dwDIBOffset + entry->dwDIBSize > filesize )
1221 goto end;
1222
1223 /* Set the actual hotspot for cursors and ICON_HOTSPOT for icons. */
1224 if ( fCursor )
1225 {
1226 hotspot.x = entry->xHotspot;
1227 hotspot.y = entry->yHotspot;
1228 }
1229 else
1230 {
1231 hotspot.x = ICON_HOTSPOT;
1232 hotspot.y = ICON_HOTSPOT;
1233 }
1234 hIcon = CURSORICON_CreateIconFromBMI( (BITMAPINFO *)&bits[entry->dwDIBOffset],
1235 hotspot, !fCursor, 0x00030000,
1236 width, height, loadflags );
1237 end:
1238 TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon );
1239 UnmapViewOfFile( bits );
1240 return hIcon;
1241 }
1242
1243 /**********************************************************************
1244 * CURSORICON_Load
1245 *
1246 * Load a cursor or icon from resource or file.
1247 */
1248 static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
1249 INT width, INT height, INT depth,
1250 BOOL fCursor, UINT loadflags)
1251 {
1252 HANDLE handle = 0;
1253 HICON hIcon = 0;
1254 HRSRC hRsrc, hGroupRsrc;
1255 CURSORICONDIR *dir;
1256 CURSORICONDIRENTRY *dirEntry;
1257 LPBYTE bits;
1258 WORD wResId;
1259 DWORD dwBytesInRes;
1260
1261 TRACE("%p, %s, %dx%d, depth %d, fCursor %d, flags 0x%04x\n",
1262 hInstance, debugstr_w(name), width, height, depth, fCursor, loadflags);
1263
1264 if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
1265 return CURSORICON_LoadFromFile( name, width, height, depth, fCursor, loadflags );
1266
1267 if (!hInstance) hInstance = user32_module; /* Load OEM cursor/icon */
1268
1269 /* don't cache 16-bit instances (FIXME: should never get 16-bit instances in the first place) */
1270 if ((ULONG_PTR)hInstance >> 16 == 0) loadflags &= ~LR_SHARED;
1271
1272 /* Get directory resource ID */
1273
1274 if (!(hRsrc = FindResourceW( hInstance, name,
1275 (LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
1276 return 0;
1277 hGroupRsrc = hRsrc;
1278
1279 /* Find the best entry in the directory */
1280
1281 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1282 if (!(dir = LockResource( handle ))) return 0;
1283 if (fCursor)
1284 dirEntry = CURSORICON_FindBestCursorRes( dir, width, height, depth );
1285 else
1286 dirEntry = CURSORICON_FindBestIconRes( dir, width, height, depth );
1287 if (!dirEntry) return 0;
1288 wResId = dirEntry->wResId;
1289 dwBytesInRes = dirEntry->dwBytesInRes;
1290 FreeResource( handle );
1291
1292 /* Load the resource */
1293
1294 if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
1295 (LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0;
1296
1297 /* If shared icon, check whether it was already loaded */
1298 if ( (loadflags & LR_SHARED)
1299 && (hIcon = CURSORICON_FindSharedIcon( hInstance, hRsrc ) ) != 0 )
1300 return hIcon;
1301
1302 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1303 bits = LockResource( handle );
1304 hIcon = CreateIconFromResourceEx( bits, dwBytesInRes,
1305 !fCursor, 0x00030000, width, height, loadflags);
1306 FreeResource( handle );
1307
1308 /* If shared icon, add to icon cache */
1309
1310 if ( hIcon && (loadflags & LR_SHARED) )
1311 CURSORICON_AddSharedIcon( hInstance, hRsrc, hGroupRsrc, hIcon );
1312
1313 return hIcon;
1314 }
1315
1316
1317 /*************************************************************************
1318 * CURSORICON_ExtCopy
1319 *
1320 * Copies an Image from the Cache if LR_COPYFROMRESOURCE is specified
1321 *
1322 * PARAMS
1323 * Handle [I] handle to an Image
1324 * nType [I] Type of Handle (IMAGE_CURSOR | IMAGE_ICON)
1325 * iDesiredCX [I] The Desired width of the Image
1326 * iDesiredCY [I] The desired height of the Image
1327 * nFlags [I] The flags from CopyImage
1328 *
1329 * RETURNS
1330 * Success: The new handle of the Image
1331 *
1332 * NOTES
1333 * LR_COPYDELETEORG and LR_MONOCHROME are currently not implemented.
1334 * LR_MONOCHROME should be implemented by CreateIconFromResourceEx.
1335 * LR_COPYFROMRESOURCE will only work if the Image is in the Cache.
1336 *
1337 *
1338 */
1339
1340 static HICON CURSORICON_ExtCopy(HICON hIcon, UINT nType,
1341 INT iDesiredCX, INT iDesiredCY,
1342 UINT nFlags)
1343 {
1344 HICON hNew=0;
1345
1346 TRACE_(icon)("hIcon %p, nType %u, iDesiredCX %i, iDesiredCY %i, nFlags %u\n",
1347 hIcon, nType, iDesiredCX, iDesiredCY, nFlags);
1348
1349 if(hIcon == 0)
1350 {
1351 return 0;
1352 }
1353
1354 /* Best Fit or Monochrome */
1355 if( (nFlags & LR_COPYFROMRESOURCE
1356 && (iDesiredCX > 0 || iDesiredCY > 0))
1357 || nFlags & LR_MONOCHROME)
1358 {
1359 ICONCACHE* pIconCache = CURSORICON_FindCache(hIcon);
1360
1361 /* Not Found in Cache, then do a straight copy
1362 */
1363 if(pIconCache == NULL)
1364 {
1365 hNew = CopyIcon( hIcon );
1366 if(nFlags & LR_COPYFROMRESOURCE)
1367 {
1368 TRACE_(icon)("LR_COPYFROMRESOURCE: Failed to load from cache\n");
1369 }
1370 }
1371 else
1372 {
1373 int iTargetCY = iDesiredCY, iTargetCX = iDesiredCX;
1374 LPBYTE pBits;
1375 HANDLE hMem;
1376 HRSRC hRsrc;
1377 DWORD dwBytesInRes;
1378 WORD wResId;
1379 CURSORICONDIR *pDir;
1380 CURSORICONDIRENTRY *pDirEntry;
1381 BOOL bIsIcon = (nType == IMAGE_ICON);
1382
1383 /* Completing iDesiredCX CY for Monochrome Bitmaps if needed
1384 */
1385 if(((nFlags & LR_MONOCHROME) && !(nFlags & LR_COPYFROMRESOURCE))
1386 || (iDesiredCX == 0 && iDesiredCY == 0))
1387 {
1388 iDesiredCY = GetSystemMetrics(bIsIcon ?
1389 SM_CYICON : SM_CYCURSOR);
1390 iDesiredCX = GetSystemMetrics(bIsIcon ?
1391 SM_CXICON : SM_CXCURSOR);
1392 }
1393
1394 /* Retrieve the CURSORICONDIRENTRY
1395 */
1396 if (!(hMem = LoadResource( pIconCache->hModule ,
1397 pIconCache->hGroupRsrc)))
1398 {
1399 return 0;
1400 }
1401 if (!(pDir = LockResource( hMem )))
1402 {
1403 return 0;
1404 }
1405
1406 /* Find Best Fit
1407 */
1408 if(bIsIcon)
1409 {
1410 pDirEntry = CURSORICON_FindBestIconRes(
1411 pDir, iDesiredCX, iDesiredCY, 256 );
1412 }
1413 else
1414 {
1415 pDirEntry = CURSORICON_FindBestCursorRes(
1416 pDir, iDesiredCX, iDesiredCY, 1);
1417 }
1418
1419 wResId = pDirEntry->wResId;
1420 dwBytesInRes = pDirEntry->dwBytesInRes;
1421 FreeResource(hMem);
1422
1423 TRACE_(icon)("ResID %u, BytesInRes %u, Width %d, Height %d DX %d, DY %d\n",
1424 wResId, dwBytesInRes, pDirEntry->ResInfo.icon.bWidth,
1425 pDirEntry->ResInfo.icon.bHeight, iDesiredCX, iDesiredCY);
1426
1427 /* Get the Best Fit
1428 */
1429 if (!(hRsrc = FindResourceW(pIconCache->hModule ,
1430 MAKEINTRESOURCEW(wResId), (LPWSTR)(bIsIcon ? RT_ICON : RT_CURSOR))))
1431 {
1432 return 0;
1433 }
1434 if (!(hMem = LoadResource( pIconCache->hModule , hRsrc )))
1435 {
1436 return 0;
1437 }
1438
1439 pBits = LockResource( hMem );
1440
1441 if(nFlags & LR_DEFAULTSIZE)
1442 {
1443 iTargetCY = GetSystemMetrics(SM_CYICON);
1444 iTargetCX = GetSystemMetrics(SM_CXICON);
1445 }
1446
1447 /* Create a New Icon with the proper dimension
1448 */
1449 hNew = CreateIconFromResourceEx( pBits, dwBytesInRes,
1450 bIsIcon, 0x00030000, iTargetCX, iTargetCY, nFlags);
1451 FreeResource(hMem);
1452 }
1453 }
1454 else hNew = CopyIcon( hIcon );
1455 return hNew;
1456 }
1457
1458
1459 /***********************************************************************
1460 * CreateCursor (USER32.@)
1461 */
1462 HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
1463 INT xHotSpot, INT yHotSpot,
1464 INT nWidth, INT nHeight,
1465 LPCVOID lpANDbits, LPCVOID lpXORbits )
1466 {
1467 ICONINFO info;
1468 HCURSOR hCursor;
1469
1470 TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
1471 nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
1472
1473 info.fIcon = FALSE;
1474 info.xHotspot = xHotSpot;
1475 info.yHotspot = yHotSpot;
1476 info.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1477 info.hbmColor = CreateBitmap( nWidth, nHeight, 1, 1, lpXORbits );
1478 hCursor = CreateIconIndirect( &info );
1479 DeleteObject( info.hbmMask );
1480 DeleteObject( info.hbmColor );
1481 return hCursor;
1482 }
1483
1484
1485 /***********************************************************************
1486 * CreateIcon (USER32.@)
1487 *
1488 * Creates an icon based on the specified bitmaps. The bitmaps must be
1489 * provided in a device dependent format and will be resized to
1490 * (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
1491 * depth. The provided bitmaps must be top-down bitmaps.
1492 * Although Windows does not support 15bpp(*) this API must support it
1493 * for Winelib applications.
1494 *
1495 * (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
1496 * format!
1497 *
1498 * RETURNS
1499 * Success: handle to an icon
1500 * Failure: NULL
1501 *
1502 * FIXME: Do we need to resize the bitmaps?
1503 */
1504 HICON WINAPI CreateIcon(
1505 HINSTANCE hInstance, /* [in] the application's hInstance */
1506 INT nWidth, /* [in] the width of the provided bitmaps */
1507 INT nHeight, /* [in] the height of the provided bitmaps */
1508 BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
1509 BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
1510 LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
1511 LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
1512 {
1513 ICONINFO iinfo;
1514 HICON hIcon;
1515
1516 TRACE_(icon)("%dx%d, planes %d, bpp %d, xor %p, and %p\n",
1517 nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits, lpANDbits);
1518
1519 iinfo.fIcon = TRUE;
1520 iinfo.xHotspot = ICON_HOTSPOT;
1521 iinfo.yHotspot = ICON_HOTSPOT;
1522 iinfo.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1523 iinfo.hbmColor = CreateBitmap( nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits );
1524
1525 hIcon = CreateIconIndirect( &iinfo );
1526
1527 DeleteObject( iinfo.hbmMask );
1528 DeleteObject( iinfo.hbmColor );
1529
1530 return hIcon;
1531 }
1532
1533
1534 /***********************************************************************
1535 * CopyIcon (USER32.@)
1536 */
1537 HICON WINAPI CopyIcon( HICON hIcon )
1538 {
1539 CURSORICONINFO *ptrOld, *ptrNew;
1540 int size;
1541 HICON hNew;
1542
1543 if (!(ptrOld = get_icon_ptr( hIcon ))) return 0;
1544 size = sizeof(CURSORICONINFO);
1545 size += ptrOld->nHeight * get_bitmap_width_bytes( ptrOld->nWidth, 1 ); /* and bitmap */
1546 size += ptrOld->nHeight * ptrOld->nWidthBytes; /* xor bitmap */
1547 hNew = alloc_icon_handle( size );
1548 ptrNew = get_icon_ptr( hNew );
1549 memcpy( ptrNew, ptrOld, size );
1550 release_icon_ptr( hIcon, ptrOld );
1551 release_icon_ptr( hNew, ptrNew );
1552 USER_Driver->pCreateCursorIcon( hNew, ptrNew );
1553 return hNew;
1554 }
1555
1556
1557 /***********************************************************************
1558 * DestroyIcon (USER32.@)
1559 */
1560 BOOL WINAPI DestroyIcon( HICON hIcon )
1561 {
1562 TRACE_(icon)("%p\n", hIcon );
1563
1564 if (CURSORICON_DelSharedIcon( hIcon ) == -1)
1565 free_icon_handle( hIcon );
1566 return TRUE;
1567 }
1568
1569
1570 /***********************************************************************
1571 * DestroyCursor (USER32.@)
1572 */
1573 BOOL WINAPI DestroyCursor( HCURSOR hCursor )
1574 {
1575 if (GetCursor() == hCursor)
1576 {
1577 WARN_(cursor)("Destroying active cursor!\n" );
1578 return FALSE;
1579 }
1580 return DestroyIcon( hCursor );
1581 }
1582
1583 /***********************************************************************
1584 * bitmap_has_alpha_channel
1585 *
1586 * Analyses bits bitmap to determine if alpha data is present.
1587 *
1588 * PARAMS
1589 * bpp [I] The bits-per-pixel of the bitmap
1590 * bitmapBits [I] A pointer to the bitmap data
1591 * bitmapLength [I] The length of the bitmap in bytes
1592 *
1593 * RETURNS
1594 * TRUE if an alpha channel is discovered, FALSE
1595 *
1596 * NOTE
1597 * Windows' behaviour is that if the icon bitmap is 32-bit and at
1598 * least one pixel has a non-zero alpha, then the bitmap is a
1599 * treated as having an alpha channel transparentcy. Otherwise,
1600 * it's treated as being completely opaque.
1601 *
1602 */
1603 static BOOL bitmap_has_alpha_channel( int bpp, unsigned char *bitmapBits,
1604 unsigned int bitmapLength )
1605 {
1606 /* Detect an alpha channel by looking for non-zero alpha pixels */
1607 if(bpp == 32)
1608 {
1609 unsigned int offset;
1610 for(offset = 3; offset < bitmapLength; offset += 4)
1611 {
1612 if(bitmapBits[offset] != 0)
1613 {
1614 return TRUE;
1615 }
1616 }
1617 }
1618 return FALSE;
1619 }
1620
1621 /***********************************************************************
1622 * premultiply_alpha_channel
1623 *
1624 * Premultiplies the color channels of a 32-bit bitmap by the alpha
1625 * channel. This is a necessary step that must be carried out on
1626 * the image before it is passed to GdiAlphaBlend
1627 *
1628 * PARAMS
1629 * destBitmap [I] The destination bitmap buffer
1630 * srcBitmap [I] The source bitmap buffer
1631 * bitmapLength [I] The length of the bitmap in bytes
1632 *
1633 */
1634 static void premultiply_alpha_channel( unsigned char *destBitmap,
1635 unsigned char *srcBitmap,
1636 unsigned int bitmapLength )
1637 {
1638 unsigned char *destPixel = destBitmap;
1639 unsigned char *srcPixel = srcBitmap;
1640
1641 while(destPixel < destBitmap + bitmapLength)
1642 {
1643 unsigned char alpha = srcPixel[3];
1644 *(destPixel++) = *(srcPixel++) * alpha / 255;
1645 *(destPixel++) = *(srcPixel++) * alpha / 255;
1646 *(destPixel++) = *(srcPixel++) * alpha / 255;
1647 *(destPixel++) = *(srcPixel++);
1648 }
1649 }
1650
1651 /***********************************************************************
1652 * DrawIcon (USER32.@)
1653 */
1654 BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
1655 {
1656 CURSORICONINFO *ptr;
1657 HDC hMemDC;
1658 HBITMAP hXorBits = NULL, hAndBits = NULL, hBitTemp = NULL;
1659 COLORREF oldFg, oldBg;
1660 unsigned char *xorBitmapBits;
1661 unsigned int dibLength;
1662
1663 TRACE("%p, (%d,%d), %p\n", hdc, x, y, hIcon);
1664
1665 if (!(ptr = get_icon_ptr( hIcon ))) return FALSE;
1666 if (!(hMemDC = CreateCompatibleDC( hdc )))
1667 {
1668 release_icon_ptr( hIcon, ptr );
1669 return FALSE;
1670 }
1671
1672 dibLength = ptr->nHeight * get_bitmap_width_bytes(
1673 ptr->nWidth, ptr->bBitsPerPixel);
1674
1675 xorBitmapBits = (unsigned char *)(ptr + 1) + ptr->nHeight *
1676 get_bitmap_width_bytes(ptr->nWidth, 1);
1677
1678 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1679 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1680
1681 if(bitmap_has_alpha_channel(ptr->bBitsPerPixel, xorBitmapBits, dibLength))
1682 {
1683 BITMAPINFOHEADER bmih;
1684 unsigned char *dibBits;
1685
1686 memset(&bmih, 0, sizeof(BITMAPINFOHEADER));
1687 bmih.biSize = sizeof(BITMAPINFOHEADER);
1688 bmih.biWidth = ptr->nWidth;
1689 bmih.biHeight = -ptr->nHeight;
1690 bmih.biPlanes = ptr->bPlanes;
1691 bmih.biBitCount = 32;
1692 bmih.biCompression = BI_RGB;
1693
1694 hXorBits = CreateDIBSection(hdc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS,
1695 (void*)&dibBits, NULL, 0);
1696
1697 if (hXorBits && dibBits)
1698 {
1699 BLENDFUNCTION pixelblend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
1700
1701 /* Do the alpha blending render */
1702 premultiply_alpha_channel(dibBits, xorBitmapBits, dibLength);
1703 hBitTemp = SelectObject( hMemDC, hXorBits );
1704 /* Destination width/height has to be "System Large" size */
1705 GdiAlphaBlend(hdc, x, y, GetSystemMetrics(SM_CXICON),
1706 GetSystemMetrics(SM_CYICON), hMemDC,
1707 0, 0, ptr->nWidth, ptr->nHeight, pixelblend);
1708 SelectObject( hMemDC, hBitTemp );
1709 }
1710 }
1711 else
1712 {
1713 hAndBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1, ptr + 1 );
1714 hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, ptr->bPlanes,
1715 ptr->bBitsPerPixel, xorBitmapBits);
1716
1717 if (hXorBits && hAndBits)
1718 {
1719 hBitTemp = SelectObject( hMemDC, hAndBits );
1720 StretchBlt( hdc, x, y, GetSystemMetrics(SM_CXICON),
1721 GetSystemMetrics(SM_CYICON), hMemDC, 0, 0,
1722 ptr->nWidth, ptr->nHeight, SRCAND );
1723 SelectObject( hMemDC, hXorBits );
1724 StretchBlt( hdc, x, y, GetSystemMetrics(SM_CXICON),
1725 GetSystemMetrics(SM_CYICON), hMemDC, 0, 0,
1726 ptr->nWidth, ptr->nHeight, SRCINVERT );
1727 SelectObject( hMemDC, hBitTemp );
1728 }
1729 }
1730
1731 DeleteDC( hMemDC );
1732 if (hXorBits) DeleteObject( hXorBits );
1733 if (hAndBits) DeleteObject( hAndBits );
1734 release_icon_ptr( hIcon, ptr );
1735 SetTextColor( hdc, oldFg );
1736 SetBkColor( hdc, oldBg );
1737 return TRUE;
1738 }
1739
1740 /***********************************************************************
1741 * SetCursor (USER32.@)
1742 *
1743 * Set the cursor shape.
1744 *
1745 * RETURNS
1746 * A handle to the previous cursor shape.
1747 */
1748 HCURSOR WINAPI DECLSPEC_HOTPATCH SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
1749 {
1750 HCURSOR hOldCursor;
1751 int show_count;
1752 BOOL ret;
1753
1754 TRACE("%p\n", hCursor);
1755
1756 SERVER_START_REQ( set_cursor )
1757 {
1758 req->flags = SET_CURSOR_HANDLE;
1759 req->handle = wine_server_user_handle( hCursor );
1760 if ((ret = !wine_server_call_err( req )))
1761 {
1762 hOldCursor = wine_server_ptr_handle( reply->prev_handle );
1763 show_count = reply->prev_count;
1764 }
1765 }
1766 SERVER_END_REQ;
1767
1768 if (!ret) return 0;
1769
1770 /* Change the cursor shape only if it is visible */
1771 if (show_count >= 0 && hOldCursor != hCursor) USER_Driver->pSetCursor( hCursor );
1772 return hOldCursor;
1773 }
1774
1775 /***********************************************************************
1776 * ShowCursor (USER32.@)
1777 */
1778 INT WINAPI DECLSPEC_HOTPATCH ShowCursor( BOOL bShow )
1779 {
1780 HCURSOR cursor;
1781 int increment = bShow ? 1 : -1;
1782 int prev_count;
1783
1784 SERVER_START_REQ( set_cursor )
1785 {
1786 req->flags = SET_CURSOR_COUNT;
1787 req->show_count = increment;
1788 wine_server_call( req );
1789 cursor = wine_server_ptr_handle( reply->prev_handle );
1790 prev_count = reply->prev_count;
1791 }
1792 SERVER_END_REQ;
1793
1794 TRACE("%d, count=%d\n", bShow, prev_count + increment );
1795
1796 if (!prev_count) USER_Driver->pSetCursor( bShow ? cursor : 0 );
1797
1798 return prev_count + increment;
1799 }
1800
1801 /***********************************************************************
1802 * GetCursor (USER32.@)
1803 */
1804 HCURSOR WINAPI GetCursor(void)
1805 {
1806 HCURSOR ret;
1807
1808 SERVER_START_REQ( set_cursor )
1809 {
1810 req->flags = 0;
1811 wine_server_call( req );
1812 ret = wine_server_ptr_handle( reply->prev_handle );
1813 }
1814 SERVER_END_REQ;
1815 return ret;
1816 }
1817
1818
1819 /***********************************************************************
1820 * ClipCursor (USER32.@)
1821 */
1822 BOOL WINAPI DECLSPEC_HOTPATCH ClipCursor( const RECT *rect )
1823 {
1824 RECT virt;
1825
1826 SetRect( &virt, 0, 0, GetSystemMetrics( SM_CXVIRTUALSCREEN ),
1827 GetSystemMetrics( SM_CYVIRTUALSCREEN ) );
1828 OffsetRect( &virt, GetSystemMetrics( SM_XVIRTUALSCREEN ),
1829 GetSystemMetrics( SM_YVIRTUALSCREEN ) );
1830
1831 TRACE( "Clipping to: %s was: %s screen: %s\n", wine_dbgstr_rect(rect),
1832 wine_dbgstr_rect(&CURSOR_ClipRect), wine_dbgstr_rect(&virt) );
1833
1834 if (!IntersectRect( &CURSOR_ClipRect, &virt, rect ))
1835 CURSOR_ClipRect = virt;
1836
1837 USER_Driver->pClipCursor( rect );
1838 return TRUE;
1839 }
1840
1841
1842 /***********************************************************************
1843 * GetClipCursor (USER32.@)
1844 */
1845 BOOL WINAPI DECLSPEC_HOTPATCH GetClipCursor( RECT *rect )
1846 {
1847 /* If this is first time - initialize the rect */
1848 if (IsRectEmpty( &CURSOR_ClipRect )) ClipCursor( NULL );
1849
1850 return CopyRect( rect, &CURSOR_ClipRect );
1851 }
1852
1853
1854 /***********************************************************************
1855 * SetSystemCursor (USER32.@)
1856 */
1857 BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id)
1858 {
1859 FIXME("(%p,%08x),stub!\n", hcur, id);
1860 return TRUE;
1861 }
1862
1863
1864 /**********************************************************************
1865 * LookupIconIdFromDirectoryEx (USER32.@)
1866 */
1867 INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
1868 INT width, INT height, UINT cFlag )
1869 {
1870 CURSORICONDIR *dir = (CURSORICONDIR*)xdir;
1871 UINT retVal = 0;
1872 if( dir && !dir->idReserved && (dir->idType & 3) )
1873 {
1874 CURSORICONDIRENTRY* entry;
1875
1876 const HDC hdc = GetDC(0);
1877 const int depth = (cFlag & LR_MONOCHROME) ?
1878 1 : GetDeviceCaps(hdc, BITSPIXEL);
1879 ReleaseDC(0, hdc);
1880
1881 if( bIcon )
1882 entry = CURSORICON_FindBestIconRes( dir, width, height, depth );
1883 else
1884 entry = CURSORICON_FindBestCursorRes( dir, width, height, depth );
1885
1886 if( entry ) retVal = entry->wResId;
1887 }
1888 else WARN_(cursor)("invalid resource directory\n");
1889 return retVal;
1890 }
1891
1892 /**********************************************************************
1893 * LookupIconIdFromDirectory (USER32.@)
1894 */
1895 INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
1896 {
1897 return LookupIconIdFromDirectoryEx( dir, bIcon,
1898 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1899 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1900 }
1901
1902 /***********************************************************************
1903 * LoadCursorW (USER32.@)
1904 */
1905 HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
1906 {
1907 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1908
1909 return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
1910 LR_SHARED | LR_DEFAULTSIZE );
1911 }
1912
1913 /***********************************************************************
1914 * LoadCursorA (USER32.@)
1915 */
1916 HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
1917 {
1918 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1919
1920 return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
1921 LR_SHARED | LR_DEFAULTSIZE );
1922 }
1923
1924 /***********************************************************************
1925 * LoadCursorFromFileW (USER32.@)
1926 */
1927 HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
1928 {
1929 TRACE("%s\n", debugstr_w(name));
1930
1931 return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
1932 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1933 }
1934
1935 /***********************************************************************
1936 * LoadCursorFromFileA (USER32.@)
1937 */
1938 HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
1939 {
1940 TRACE("%s\n", debugstr_a(name));
1941
1942 return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
1943 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1944 }
1945
1946 /***********************************************************************
1947 * LoadIconW (USER32.@)
1948 */
1949 HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
1950 {
1951 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1952
1953 return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
1954 LR_SHARED | LR_DEFAULTSIZE );
1955 }
1956
1957 /***********************************************************************
1958 * LoadIconA (USER32.@)
1959 */
1960 HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
1961 {
1962 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1963
1964 return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
1965 LR_SHARED | LR_DEFAULTSIZE );
1966 }
1967
1968 /**********************************************************************
1969 * GetIconInfo (USER32.@)
1970 */
1971 BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
1972 {
1973 CURSORICONINFO *ciconinfo;
1974 INT height;
1975
1976 if (!(ciconinfo = get_icon_ptr( hIcon ))) return FALSE;
1977
1978 TRACE("%p => %dx%d, %d bpp\n", hIcon,
1979 ciconinfo->nWidth, ciconinfo->nHeight, ciconinfo->bBitsPerPixel);
1980
1981 if ( (ciconinfo->ptHotSpot.x == ICON_HOTSPOT) &&
1982 (ciconinfo->ptHotSpot.y == ICON_HOTSPOT) )
1983 {
1984 iconinfo->fIcon = TRUE;
1985 iconinfo->xHotspot = ciconinfo->nWidth / 2;
1986 iconinfo->yHotspot = ciconinfo->nHeight / 2;
1987 }
1988 else
1989 {
1990 iconinfo->fIcon = FALSE;
1991 iconinfo->xHotspot = ciconinfo->ptHotSpot.x;
1992 iconinfo->yHotspot = ciconinfo->ptHotSpot.y;
1993 }
1994
1995 height = ciconinfo->nHeight;
1996
1997 if (ciconinfo->bBitsPerPixel > 1)
1998 {
1999 iconinfo->hbmColor = CreateBitmap( ciconinfo->nWidth, ciconinfo->nHeight,
2000 ciconinfo->bPlanes, ciconinfo->bBitsPerPixel,
2001 (char *)(ciconinfo + 1)
2002 + ciconinfo->nHeight *
2003 get_bitmap_width_bytes (ciconinfo->nWidth,1) );
2004 }
2005 else
2006 {
2007 iconinfo->hbmColor = 0;
2008 height *= 2;
2009 }
2010
2011 iconinfo->hbmMask = CreateBitmap ( ciconinfo->nWidth, height,
2012 1, 1, ciconinfo + 1);
2013 release_icon_ptr( hIcon, ciconinfo );
2014
2015 return TRUE;
2016 }
2017
2018 /**********************************************************************
2019 * CreateIconIndirect (USER32.@)
2020 */
2021 HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
2022 {
2023 DIBSECTION bmpXor;
2024 BITMAP bmpAnd;
2025 HICON hObj;
2026 int xor_objsize = 0, sizeXor = 0, sizeAnd, planes, bpp;
2027
2028 TRACE("color %p, mask %p, hotspot %ux%u, fIcon %d\n",
2029 iconinfo->hbmColor, iconinfo->hbmMask,
2030 iconinfo->xHotspot, iconinfo->yHotspot, iconinfo->fIcon);
2031
2032 if (!iconinfo->hbmMask) return 0;
2033
2034 planes = GetDeviceCaps( screen_dc, PLANES );
2035 bpp = GetDeviceCaps( screen_dc, BITSPIXEL );
2036
2037 if (iconinfo->hbmColor)
2038 {
2039 xor_objsize = GetObjectW( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
2040 TRACE("color: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2041 bmpXor.dsBm.bmWidth, bmpXor.dsBm.bmHeight, bmpXor.dsBm.bmWidthBytes,
2042 bmpXor.dsBm.bmPlanes, bmpXor.dsBm.bmBitsPixel);
2043 /* we can use either depth 1 or screen depth for xor bitmap */
2044 if (bmpXor.dsBm.bmPlanes == 1 && bmpXor.dsBm.bmBitsPixel == 1) planes = bpp = 1;
2045 sizeXor = bmpXor.dsBm.bmHeight * planes * get_bitmap_width_bytes( bmpXor.dsBm.bmWidth, bpp );
2046 }
2047 GetObjectW( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
2048 TRACE("mask: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2049 bmpAnd.bmWidth, bmpAnd.bmHeight, bmpAnd.bmWidthBytes,
2050 bmpAnd.bmPlanes, bmpAnd.bmBitsPixel);
2051
2052 sizeAnd = bmpAnd.bmHeight * get_bitmap_width_bytes(bmpAnd.bmWidth, 1);
2053
2054 hObj = alloc_icon_handle( sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
2055 if (hObj)
2056 {
2057 CURSORICONINFO *info = get_icon_ptr( hObj );
2058
2059 /* If we are creating an icon, the hotspot is unused */
2060 if (iconinfo->fIcon)
2061 {
2062 info->ptHotSpot.x = ICON_HOTSPOT;
2063 info->ptHotSpot.y = ICON_HOTSPOT;
2064 }
2065 else
2066 {
2067 info->ptHotSpot.x = iconinfo->xHotspot;
2068 info->ptHotSpot.y = iconinfo->yHotspot;
2069 }
2070
2071 if (iconinfo->hbmColor)
2072 {
2073 info->nWidth = bmpXor.dsBm.bmWidth;
2074 info->nHeight = bmpXor.dsBm.bmHeight;
2075 info->nWidthBytes = bmpXor.dsBm.bmWidthBytes;
2076 info->bPlanes = planes;
2077 info->bBitsPerPixel = bpp;
2078 }
2079 else
2080 {
2081 info->nWidth = bmpAnd.bmWidth;
2082 info->nHeight = bmpAnd.bmHeight / 2;
2083 info->nWidthBytes = get_bitmap_width_bytes(bmpAnd.bmWidth, 1);
2084 info->bPlanes = 1;
2085 info->bBitsPerPixel = 1;
2086 }
2087
2088 /* Transfer the bitmap bits to the CURSORICONINFO structure */
2089
2090 /* Some apps pass a color bitmap as a mask, convert it to b/w */
2091 if (bmpAnd.bmBitsPixel == 1)
2092 {
2093 GetBitmapBits( iconinfo->hbmMask, sizeAnd, info + 1 );
2094 }
2095 else
2096 {
2097 HDC hdc_mem, hdc_mem2;
2098 HBITMAP hbmp_mem_old, hbmp_mem2_old, hbmp_mono;
2099
2100 hdc_mem = CreateCompatibleDC( 0 );
2101 hdc_mem2 = CreateCompatibleDC( 0 );
2102
2103 hbmp_mono = CreateBitmap( bmpAnd.bmWidth, bmpAnd.bmHeight, 1, 1, NULL );
2104
2105 hbmp_mem_old = SelectObject( hdc_mem, iconinfo->hbmMask );
2106 hbmp_mem2_old = SelectObject( hdc_mem2, hbmp_mono );
2107
2108 BitBlt( hdc_mem2, 0, 0, bmpAnd.bmWidth, bmpAnd.bmHeight, hdc_mem, 0, 0, SRCCOPY );
2109
2110 SelectObject( hdc_mem, hbmp_mem_old );
2111 SelectObject( hdc_mem2, hbmp_mem2_old );
2112
2113 DeleteDC( hdc_mem );
2114 DeleteDC( hdc_mem2 );
2115
2116 GetBitmapBits( hbmp_mono, sizeAnd, info + 1 );
2117 DeleteObject( hbmp_mono );
2118 }
2119
2120 if (iconinfo->hbmColor)
2121 {
2122 char *dst_bits = (char*)(info + 1) + sizeAnd;
2123
2124 if (bmpXor.dsBm.bmPlanes == planes && bmpXor.dsBm.bmBitsPixel == bpp)
2125 GetBitmapBits( iconinfo->hbmColor, sizeXor, dst_bits );
2126 else
2127 {
2128 BITMAPINFO bminfo;
2129 int dib_width = get_dib_width_bytes( info->nWidth, info->bBitsPerPixel );
2130 int bitmap_width = get_bitmap_width_bytes( info->nWidth, info->bBitsPerPixel );
2131
2132 bminfo.bmiHeader.biSize = sizeof(bminfo);
2133 bminfo.bmiHeader.biWidth = info->nWidth;
2134 bminfo.bmiHeader.biHeight = info->nHeight;
2135 bminfo.bmiHeader.biPlanes = info->bPlanes;
2136 bminfo.bmiHeader.biBitCount = info->bBitsPerPixel;
2137 bminfo.bmiHeader.biCompression = BI_RGB;
2138 bminfo.bmiHeader.biSizeImage = info->nHeight * dib_width;
2139 bminfo.bmiHeader.biXPelsPerMeter = 0;
2140 bminfo.bmiHeader.biYPelsPerMeter = 0;
2141 bminfo.bmiHeader.biClrUsed = 0;
2142 bminfo.bmiHeader.biClrImportant = 0;
2143
2144 /* swap lines for dib sections */
2145 if (xor_objsize == sizeof(DIBSECTION))
2146 bminfo.bmiHeader.biHeight = -bminfo.bmiHeader.biHeight;
2147
2148 if (dib_width != bitmap_width) /* need to fixup alignment */
2149 {
2150 char *src_bits = HeapAlloc( GetProcessHeap(), 0, bminfo.bmiHeader.biSizeImage );
2151
2152 if (src_bits && GetDIBits( screen_dc, iconinfo->hbmColor, 0, info->nHeight,
2153 src_bits, &bminfo, DIB_RGB_COLORS ))
2154 {
2155 int y;
2156 for (y = 0; y < info->nHeight; y++)
2157 memcpy( dst_bits + y * bitmap_width, src_bits + y * dib_width, bitmap_width );
2158 }
2159 HeapFree( GetProcessHeap(), 0, src_bits );
2160 }
2161 else
2162 GetDIBits( screen_dc, iconinfo->hbmColor, 0, info->nHeight,
2163 dst_bits, &bminfo, DIB_RGB_COLORS );
2164 }
2165 }
2166 release_icon_ptr( hObj, info );
2167 USER_Driver->pCreateCursorIcon( hObj, info );
2168 }
2169 return hObj;
2170 }
2171
2172 /******************************************************************************
2173 * DrawIconEx (USER32.@) Draws an icon or cursor on device context
2174 *
2175 * NOTES
2176 * Why is this using SM_CXICON instead of SM_CXCURSOR?
2177 *
2178 * PARAMS
2179 * hdc [I] Handle to device context
2180 * x0 [I] X coordinate of upper left corner
2181 * y0 [I] Y coordinate of upper left corner
2182 * hIcon [I] Handle to icon to draw
2183 * cxWidth [I] Width of icon
2184 * cyWidth [I] Height of icon
2185 * istep [I] Index of frame in animated cursor
2186 * hbr [I] Handle to background brush
2187 * flags [I] Icon-drawing flags
2188 *
2189 * RETURNS
2190 * Success: TRUE
2191 * Failure: FALSE
2192 */
2193 BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
2194 INT cxWidth, INT cyWidth, UINT istep,
2195 HBRUSH hbr, UINT flags )
2196 {
2197 CURSORICONINFO *ptr;
2198 HDC hDC_off = 0, hMemDC;
2199 BOOL result = FALSE, DoOffscreen;
2200 HBITMAP hB_off = 0, hOld = 0;
2201 unsigned char *xorBitmapBits;
2202 unsigned int xorLength;
2203 BOOL has_alpha = FALSE;
2204
2205 TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
2206 hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
2207
2208 if (!(ptr = get_icon_ptr( hIcon ))) return FALSE;
2209 if (!(hMemDC = CreateCompatibleDC( hdc )))
2210 {
2211 release_icon_ptr( hIcon, ptr );
2212 return FALSE;
2213 }
2214
2215 if (istep)
2216 FIXME_(icon)("Ignoring istep=%d\n", istep);
2217 if (flags & DI_NOMIRROR)
2218 FIXME_(icon)("Ignoring flag DI_NOMIRROR\n");
2219
2220 xorLength = ptr->nHeight * get_bitmap_width_bytes(
2221 ptr->nWidth, ptr->bBitsPerPixel);
2222 xorBitmapBits = (unsigned char *)(ptr + 1) + ptr->nHeight *
2223 get_bitmap_width_bytes(ptr->nWidth, 1);
2224
2225 if (flags & DI_IMAGE)
2226 has_alpha = bitmap_has_alpha_channel(
2227 ptr->bBitsPerPixel, xorBitmapBits, xorLength);
2228
2229 /* Calculate the size of the destination image. */
2230 if (cxWidth == 0)
2231 {
2232 if (flags & DI_DEFAULTSIZE)
2233 cxWidth = GetSystemMetrics (SM_CXICON);
2234 else
2235 cxWidth = ptr->nWidth;
2236 }
2237 if (cyWidth == 0)
2238 {
2239 if (flags & DI_DEFAULTSIZE)
2240 cyWidth = GetSystemMetrics (SM_CYICON);
2241 else
2242 cyWidth = ptr->nHeight;
2243 }
2244
2245 DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
2246
2247 if (DoOffscreen) {
2248 RECT r;
2249
2250 r.left = 0;
2251 r.top = 0;
2252 r.right = cxWidth;
2253 r.bottom = cxWidth;
2254
2255 hDC_off = CreateCompatibleDC(hdc);
2256 hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth);
2257 if (hDC_off && hB_off) {
2258 hOld = SelectObject(hDC_off, hB_off);
2259 FillRect(hDC_off, &r, hbr);
2260 }
2261 }
2262
2263 if (hMemDC && (!DoOffscreen || (hDC_off && hB_off)))
2264 {
2265 HBITMAP hBitTemp;
2266 HBITMAP hXorBits = NULL, hAndBits = NULL;
2267 COLORREF oldFg, oldBg;
2268 INT nStretchMode;
2269
2270 nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
2271
2272 oldFg = SetTextColor( hdc, RGB(0,0,0) );
2273 oldBg = SetBkColor( hdc, RGB(255,255,255) );
2274
2275 if (((flags & DI_MASK) && !(flags & DI_IMAGE)) ||
2276 ((flags & DI_MASK) && !has_alpha))
2277 {
2278 hAndBits = CreateBitmap ( ptr->nWidth, ptr->nHeight, 1, 1, ptr + 1 );
2279 if (hAndBits)
2280 {
2281 hBitTemp = SelectObject( hMemDC, hAndBits );
2282 if (DoOffscreen)
2283 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
2284 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
2285 else
2286 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
2287 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
2288 SelectObject( hMemDC, hBitTemp );
2289 }
2290 }
2291
2292 if (flags & DI_IMAGE)
2293 {
2294 BITMAPINFOHEADER bmih;
2295 unsigned char *dibBits;
2296
2297 memset(&bmih, 0, sizeof(BITMAPINFOHEADER));
2298 bmih.biSize = sizeof(BITMAPINFOHEADER);
2299 bmih.biWidth = ptr->nWidth;
2300 bmih.biHeight = -ptr->nHeight;
2301 bmih.biPlanes = ptr->bPlanes;
2302 bmih.biBitCount = ptr->bBitsPerPixel;
2303 bmih.biCompression = BI_RGB;
2304
2305 hXorBits = CreateDIBSection(hdc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS,
2306 (void*)&dibBits, NULL, 0);
2307
2308 if (hXorBits && dibBits)
2309 {
2310 if(has_alpha)
2311 {
2312 BLENDFUNCTION pixelblend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
2313
2314 /* Do the alpha blending render */
2315 premultiply_alpha_channel(dibBits, xorBitmapBits, xorLength);
2316 hBitTemp = SelectObject( hMemDC, hXorBits );
2317
2318 if (DoOffscreen)
2319 GdiAlphaBlend(hDC_off, 0, 0, cxWidth, cyWidth, hMemDC,
2320 0, 0, ptr->nWidth, ptr->nHeight, pixelblend);
2321 else
2322 GdiAlphaBlend(hdc, x0, y0, cxWidth, cyWidth, hMemDC,
2323 0, 0, ptr->nWidth, ptr->nHeight, pixelblend);
2324
2325 SelectObject( hMemDC, hBitTemp );
2326 }
2327 else
2328 {
2329 memcpy(dibBits, xorBitmapBits, xorLength);
2330 hBitTemp = SelectObject( hMemDC, hXorBits );
2331 if (DoOffscreen)
2332 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
2333 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
2334 else
2335 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
2336 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
2337 SelectObject( hMemDC, hBitTemp );
2338 }
2339
2340 DeleteObject( hXorBits );
2341 }
2342 }
2343
2344 result = TRUE;
2345
2346 SetTextColor( hdc, oldFg );
2347 SetBkColor( hdc, oldBg );
2348
2349 if (hAndBits) DeleteObject( hAndBits );
2350 SetStretchBltMode (hdc, nStretchMode);
2351 if (DoOffscreen) {
2352 BitBlt(hdc, x0, y0, cxWidth, cyWidth, hDC_off, 0, 0, SRCCOPY);
2353 SelectObject(hDC_off, hOld);
2354 }
2355 }
2356 if (hMemDC) DeleteDC( hMemDC );
2357 if (hDC_off) DeleteDC(hDC_off);
2358 if (hB_off) DeleteObject(hB_off);
2359 release_icon_ptr( hIcon, ptr );
2360 return result;
2361 }
2362
2363 /***********************************************************************
2364 * DIB_FixColorsToLoadflags
2365 *
2366 * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
2367 * are in loadflags
2368 */
2369 static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
2370 {
2371 int colors;
2372 COLORREF c_W, c_S, c_F, c_L, c_C;
2373 int incr,i;
2374 RGBQUAD *ptr;
2375 int bitmap_type;
2376 LONG width;
2377 LONG height;
2378 WORD bpp;
2379 DWORD compr;
2380
2381 if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
2382 {
2383 WARN_(resource)("Invalid bitmap\n");
2384 return;
2385 }
2386
2387 if (bpp > 8) return;
2388
2389 if (bitmap_type == 0) /* BITMAPCOREHEADER */
2390 {
2391 incr = 3;
2392 colors = 1 << bpp;
2393 }
2394 else
2395 {
2396 incr = 4;
2397 colors = bmi->bmiHeader.biClrUsed;
2398 if (colors > 256) colors = 256;
2399 if (!colors && (bpp <= 8)) colors = 1 << bpp;
2400 }
2401
2402 c_W = GetSysColor(COLOR_WINDOW);
2403 c_S = GetSysColor(COLOR_3DSHADOW);
2404 c_F = GetSysColor(COLOR_3DFACE);
2405 c_L = GetSysColor(COLOR_3DLIGHT);
2406
2407 if (loadflags & LR_LOADTRANSPARENT) {
2408 switch (bpp) {
2409 case 1: pix = pix >> 7; break;
2410 case 4: pix = pix >> 4; break;
2411 case 8: break;
2412 default:
2413 WARN_(resource)("(%d): Unsupported depth\n", bpp);
2414 return;
2415 }
2416 if (pix >= colors) {
2417 WARN_(resource)("pixel has color index greater than biClrUsed!\n");
2418 return;
2419 }
2420 if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
2421 ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
2422 ptr->rgbBlue = GetBValue(c_W);
2423 ptr->rgbGreen = GetGValue(c_W);
2424 ptr->rgbRed = GetRValue(c_W);
2425 }
2426 if (loadflags & LR_LOADMAP3DCOLORS)
2427 for (i=0; i<colors; i++) {
2428 ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
2429 c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
2430 if (c_C == RGB(128, 128, 128)) {
2431 ptr->rgbRed = GetRValue(c_S);
2432 ptr->rgbGreen = GetGValue(c_S);
2433 ptr->rgbBlue = GetBValue(c_S);
2434 } else if (c_C == RGB(192, 192, 192)) {
2435 ptr->rgbRed = GetRValue(c_F);
2436 ptr->rgbGreen = GetGValue(c_F);
2437 ptr->rgbBlue = GetBValue(c_F);
2438 } else if (c_C == RGB(223, 223, 223)) {
2439 ptr->rgbRed = GetRValue(c_L);
2440 ptr->rgbGreen = GetGValue(c_L);
2441 ptr->rgbBlue = GetBValue(c_L);
2442 }
2443 }
2444 }
2445
2446
2447 /**********************************************************************
2448 * BITMAP_Load
2449 */
2450 static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
2451 INT desiredx, INT desiredy, UINT loadflags )
2452 {
2453 HBITMAP hbitmap = 0, orig_bm;
2454 HRSRC hRsrc;
2455 HGLOBAL handle;
2456 char *ptr = NULL;
2457 BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL;
2458 int size;
2459 BYTE pix;
2460 char *bits;
2461 LONG width, height, new_width, new_height;
2462 WORD bpp_dummy;
2463 DWORD compr_dummy;
2464 INT bm_type;
2465 HDC screen_mem_dc = NULL;
2466
2467 if (!(loadflags & LR_LOADFROMFILE))
2468 {
2469 if (!instance)
2470 {
2471 /* OEM bitmap: try to load the resource from user32.dll */
2472 instance = user32_module;
2473 }
2474
2475 if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
2476 if (!(handle = LoadResource( instance, hRsrc ))) return 0;
2477
2478 if ((info = LockResource( handle )) == NULL) return 0;
2479 }
2480 else
2481 {
2482 BITMAPFILEHEADER * bmfh;
2483
2484 if (!(ptr = map_fileW( name, NULL ))) return 0;
2485 info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
2486 bmfh = (BITMAPFILEHEADER *)ptr;
2487 if (bmfh->bfType != 0x4d42 /* 'BM' */)
2488 {
2489 WARN("Invalid/unsupported bitmap format!\n");
2490 UnmapViewOfFile( ptr );
2491 return 0;
2492 }
2493 }
2494
2495 size = bitmap_info_size(info, DIB_RGB_COLORS);
2496 fix_info = HeapAlloc(GetProcessHeap(), 0, size);
2497 scaled_info = HeapAlloc(GetProcessHeap(), 0, size);
2498
2499 if (!fix_info || !scaled_info) goto end;
2500 memcpy(fix_info, info, size);
2501
2502 pix = *((LPBYTE)info + size);
2503 DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
2504
2505 memcpy(scaled_info, fix_info, size);
2506 bm_type = DIB_GetBitmapInfo( &fix_info->bmiHeader, &width, &height,
2507 &bpp_dummy, &compr_dummy);
2508 if(desiredx != 0)
2509 new_width = desiredx;
2510 else
2511 new_width = width;
2512
2513 if(desiredy != 0)
2514 new_height = height > 0 ? desiredy : -desiredy;
2515 else
2516 new_height = height;
2517
2518 if(bm_type == 0)
2519 {
2520 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader;
2521 core->bcWidth = new_width;
2522 core->bcHeight = new_height;
2523 }
2524 else
2525 {
2526 scaled_info->bmiHeader.biWidth = new_width;
2527 scaled_info->bmiHeader.biHeight = new_height;
2528 }
2529
2530 if (new_height < 0) new_height = -new_height;
2531
2532 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2533 if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end;
2534
2535 bits = (char *)info + size;
2536
2537 if (loadflags & LR_CREATEDIBSECTION)
2538 {
2539 scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
2540 hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0);
2541 }
2542 else
2543 {
2544 if (is_dib_monochrome(fix_info))
2545 hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL);
2546 else
2547 hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height);
2548 }
2549
2550 orig_bm = SelectObject(screen_mem_dc, hbitmap);
2551 StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
2552 SelectObject(screen_mem_dc, orig_bm);
2553
2554 end:
2555 if (screen_mem_dc) DeleteDC(screen_mem_dc);
2556 HeapFree(GetProcessHeap(), 0, scaled_info);
2557 HeapFree(GetProcessHeap(), 0, fix_info);
2558 if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
2559
2560 return hbitmap;
2561 }
2562
2563 /**********************************************************************
2564 * LoadImageA (USER32.@)
2565 *
2566 * See LoadImageW.
2567 */
2568 HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
2569 INT desiredx, INT desiredy, UINT loadflags)
2570 {
2571 HANDLE res;
2572 LPWSTR u_name;
2573
2574 if (IS_INTRESOURCE(name))
2575 return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
2576
2577 __TRY {
2578 DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2579 u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
2580 MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
2581 }
2582 __EXCEPT_PAGE_FAULT {
2583 SetLastError( ERROR_INVALID_PARAMETER );
2584 return 0;
2585 }
2586 __ENDTRY
2587 res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
2588 HeapFree(GetProcessHeap(), 0, u_name);
2589 return res;
2590 }
2591
2592
2593 /******************************************************************************
2594 * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
2595 *
2596 * PARAMS
2597 * hinst [I] Handle of instance that contains image
2598 * name [I] Name of image
2599 * type [I] Type of image
2600 * desiredx [I] Desired width
2601 * desiredy [I] Desired height
2602 * loadflags [I] Load flags
2603 *
2604 * RETURNS
2605 * Success: Handle to newly loaded image
2606 * Failure: NULL
2607 *
2608 * FIXME: Implementation lacks some features, see LR_ defines in winuser.h
2609 */
2610 HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
2611 INT desiredx, INT desiredy, UINT loadflags )
2612 {
2613 TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n",
2614 hinst,debugstr_w(name),type,desiredx,desiredy,loadflags);
2615
2616 if (loadflags & LR_DEFAULTSIZE) {
2617 if (type == IMAGE_ICON) {
2618 if (!desiredx) desiredx = GetSystemMetrics(SM_CXICON);
2619 if (!desiredy) desiredy = GetSystemMetrics(SM_CYICON);
2620 } else if (type == IMAGE_CURSOR) {
2621 if (!desiredx) desiredx = GetSystemMetrics(SM_CXCURSOR);
2622 if (!desiredy) desiredy = GetSystemMetrics(SM_CYCURSOR);
2623 }
2624 }
2625 if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
2626 switch (type) {
2627 case IMAGE_BITMAP:
2628 return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags );
2629
2630 case IMAGE_ICON:
2631 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2632 if (screen_dc)
2633 {
2634 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2635 GetDeviceCaps(screen_dc, BITSPIXEL),
2636 FALSE, loadflags);
2637 }
2638 break;
2639
2640 case IMAGE_CURSOR:
2641 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2642 1, TRUE, loadflags);
2643 }
2644 return 0;
2645 }
2646
2647 /******************************************************************************
2648 * CopyImage (USER32.@) Creates new image and copies attributes to it
2649 *
2650 * PARAMS
2651 * hnd [I] Handle to image to copy
2652 * type [I] Type of image to copy
2653 * desiredx [I] Desired width of new image
2654 * desiredy [I] Desired height of new image
2655 * flags [I] Copy flags
2656 *
2657 * RETURNS
2658 * Success: Handle to newly created image
2659 * Failure: NULL
2660 *
2661 * BUGS
2662 * Only Windows NT 4.0 supports the LR_COPYRETURNORG flag for bitmaps,
2663 * all other versions (95/2000/XP have been tested) ignore it.
2664 *
2665 * NOTES
2666 * If LR_CREATEDIBSECTION is absent, the copy will be monochrome for
2667 * a monochrome source bitmap or if LR_MONOCHROME is present, otherwise
2668 * the copy will have the same depth as the screen.
2669 * The content of the image will only be copied if the bit depth of the
2670 * original image is compatible with the bit depth of the screen, or
2671 * if the source is a DIB section.
2672 * The LR_MONOCHROME flag is ignored if LR_CREATEDIBSECTION is present.
2673 */
2674 HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
2675 INT desiredy, UINT flags )
2676 {
2677 TRACE("hnd=%p, type=%u, desiredx=%d, desiredy=%d, flags=%x\n",
2678 hnd, type, desiredx, desiredy, flags);
2679
2680 switch (type)
2681 {
2682 case IMAGE_BITMAP:
2683 {
2684 HBITMAP res = NULL;
2685 DIBSECTION ds;
2686 int objSize;
2687 BITMAPINFO * bi;
2688
2689 objSize = GetObjectW( hnd, sizeof(ds), &ds );
2690 if (!objSize) return 0;
2691 if ((desiredx < 0) || (desiredy < 0)) return 0;
2692
2693 if (flags & LR_COPYFROMRESOURCE)
2694 {
2695 FIXME("The flag LR_COPYFROMRESOURCE is not implemented for bitmaps\n");
2696 }
2697
2698 if (desiredx == 0) desiredx = ds.dsBm.bmWidth;
2699 if (desiredy == 0) desiredy = ds.dsBm.bmHeight;
2700
2701 /* Allocate memory for a BITMAPINFOHEADER structure and a
2702 color table. The maximum number of colors in a color table
2703 is 256 which corresponds to a bitmap with depth 8.
2704 Bitmaps with higher depths don't have color tables. */
2705 bi = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
2706 if (!bi) return 0;
2707
2708 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2709 bi->bmiHeader.biPlanes = ds.dsBm.bmPlanes;
2710 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2711 bi->bmiHeader.biCompression = BI_RGB;
2712
2713 if (flags & LR_CREATEDIBSECTION)
2714 {
2715 /* Create a DIB section. LR_MONOCHROME is ignored */
2716 void * bits;
2717 HDC dc = CreateCompatibleDC(NULL);
2718
2719 if (objSize == sizeof(DIBSECTION))
2720 {
2721 /* The source bitmap is a DIB.
2722 Get its attributes to create an exact copy */
2723 memcpy(bi, &ds.dsBmih, sizeof(BITMAPINFOHEADER));
2724 }
2725
2726 /* Get the color table or the color masks */
2727 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2728
2729 bi->bmiHeader.biWidth = desiredx;
2730 bi->bmiHeader.biHeight = desiredy;
2731 bi->bmiHeader.biSizeImage = 0;
2732
2733 res = CreateDIBSection(dc, bi, DIB_RGB_COLORS, &bits, NULL, 0);
2734 DeleteDC(dc);
2735 }
2736 else
2737 {
2738 /* Create a device-dependent bitmap */
2739
2740 BOOL monochrome = (flags & LR_MONOCHROME);
2741
2742 if (objSize == sizeof(DIBSECTION))
2743 {
2744 /* The source bitmap is a DIB section.
2745 Get its attributes */
2746 HDC dc = CreateCompatibleDC(NULL);
2747 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2748 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2749 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2750 DeleteDC(dc);
2751
2752 if (!monochrome && ds.dsBm.bmBitsPixel == 1)
2753 {
2754 /* Look if the colors of the DIB are black and white */
2755
2756 monochrome =
2757 (bi->bmiColors[0].rgbRed == 0xff
2758 && bi->bmiColors[0].rgbGreen == 0xff
2759 && bi->bmiColors[0].rgbBlue == 0xff
2760 && bi->bmiColors[0].rgbReserved == 0
2761 && bi->bmiColors[1].rgbRed == 0
2762 && bi->bmiColors[1].rgbGreen == 0
2763 && bi->bmiColors[1].rgbBlue == 0
2764 && bi->bmiColors[1].rgbReserved == 0)
2765 ||
2766 (bi->bmiColors[0].rgbRed == 0
2767 && bi->bmiColors[0].rgbGreen == 0
2768 && bi->bmiColors[0].rgbBlue == 0
2769 && bi->bmiColors[0].rgbReserved == 0
2770 && bi->bmiColors[1].rgbRed == 0xff
2771 && bi->bmiColors[1].rgbGreen == 0xff
2772 && bi->bmiColors[1].rgbBlue == 0xff
2773 && bi->bmiColors[1].rgbReserved == 0);
2774 }
2775 }
2776 else if (!monochrome)
2777 {
2778 monochrome = ds.dsBm.bmBitsPixel == 1;
2779 }
2780
2781 if (monochrome)
2782 {
2783 res = CreateBitmap(desiredx, desiredy, 1, 1, NULL);
2784 }
2785 else
2786 {
2787 HDC screenDC = GetDC(NULL);
2788 res = CreateCompatibleBitmap(screenDC, desiredx, desiredy);
2789 ReleaseDC(NULL, screenDC);
2790 }
2791 }
2792
2793 if (res)
2794 {
2795 /* Only copy the bitmap if it's a DIB section or if it's
2796 compatible to the screen */
2797 BOOL copyContents;
2798
2799 if (objSize == sizeof(DIBSECTION))
2800 {
2801 copyContents = TRUE;
2802 }
2803 else
2804 {
2805 HDC screenDC = GetDC(NULL);
2806 int screen_depth = GetDeviceCaps(screenDC, BITSPIXEL);
2807 ReleaseDC(NULL, screenDC);
2808
2809 copyContents = (ds.dsBm.bmBitsPixel == 1 || ds.dsBm.bmBitsPixel == screen_depth);
2810 }
2811
2812 if (copyContents)
2813 {
2814 /* The source bitmap may already be selected in a device context,
2815 use GetDIBits/StretchDIBits and not StretchBlt */
2816
2817 HDC dc;
2818 void * bits;
2819
2820 dc = CreateCompatibleDC(NULL);
2821
2822 bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
2823 bi->bmiHeader.biHeight = ds.dsBm.bmHeight;
2824 bi->bmiHeader.biSizeImage = 0;
2825 bi->bmiHeader.biClrUsed = 0;
2826 bi->bmiHeader.biClrImportant = 0;
2827
2828 /* Fill in biSizeImage */
2829 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2830 bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, bi->bmiHeader.biSizeImage);
2831
2832 if (bits)
2833 {
2834 HBITMAP oldBmp;
2835
2836 /* Get the image bits of the source bitmap */
2837 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, bits, bi, DIB_RGB_COLORS);
2838
2839 /* Copy it to the destination bitmap */
2840 oldBmp = SelectObject(dc, res);
2841 StretchDIBits(dc, 0, 0, desiredx, desiredy,
2842 0, 0, ds.dsBm.bmWidth, ds.dsBm.bmHeight,
2843 bits, bi, DIB_RGB_COLORS, SRCCOPY);
2844 SelectObject(dc, oldBmp);
2845
2846 HeapFree(GetProcessHeap(), 0, bits);
2847 }
2848
2849 DeleteDC(dc);
2850 }
2851
2852 if (flags & LR_COPYDELETEORG)
2853 {
2854 DeleteObject(hnd);
2855 }
2856 }
2857 HeapFree(GetProcessHeap(), 0, bi);
2858 return res;
2859 }
2860 case IMAGE_ICON:
2861 return CURSORICON_ExtCopy(hnd,type, desiredx, desiredy, flags);
2862 case IMAGE_CURSOR:
2863 /* Should call CURSORICON_ExtCopy but more testing
2864 * needs to be done before we change this
2865 */
2866 if (flags) FIXME("Flags are ignored\n");
2867 return CopyCursor(hnd);
2868 }
2869 return 0;
2870 }
2871
2872
2873 /******************************************************************************
2874 * LoadBitmapW (USER32.@) Loads bitmap from the executable file
2875 *
2876 * RETURNS
2877 * Success: Handle to specified bitmap
2878 * Failure: NULL
2879 */
2880 HBITMAP WINAPI LoadBitmapW(
2881 HINSTANCE instance, /* [in] Handle to application instance */
2882 LPCWSTR name) /* [in] Address of bitmap resource name */
2883 {
2884 return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2885 }
2886
2887 /**********************************************************************
2888 * LoadBitmapA (USER32.@)
2889 *
2890 * See LoadBitmapW.
2891 */
2892 HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
2893 {
2894 return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2895 }
an attempt at megring old patches into wine