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include: Define WINE_RB_ENTRY_VALUE using the standard offsetof.
[wine/multimedia.git] / dlls / user32 / cursoricon.c
blob8f6f9ce7b504e24bca38a977c425b4d632d110a7
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 #include "config.h"
26 #include "wine/port.h"
27
28 #include <assert.h>
29 #include <stdarg.h>
30 #include <string.h>
31 #include <stdlib.h>
32
33 #include "windef.h"
34 #include "winbase.h"
35 #include "wingdi.h"
36 #include "winerror.h"
37 #include "winnls.h"
38 #include "wine/exception.h"
39 #include "wine/server.h"
40 #include "controls.h"
41 #include "win.h"
42 #include "user_private.h"
43 #include "wine/list.h"
44 #include "wine/unicode.h"
45 #include "wine/debug.h"
46
47 WINE_DEFAULT_DEBUG_CHANNEL(cursor);
48 WINE_DECLARE_DEBUG_CHANNEL(icon);
49 WINE_DECLARE_DEBUG_CHANNEL(resource);
50
51 #include "pshpack1.h"
52
53 typedef struct {
54 BYTE bWidth;
55 BYTE bHeight;
56 BYTE bColorCount;
57 BYTE bReserved;
58 WORD xHotspot;
59 WORD yHotspot;
60 DWORD dwDIBSize;
61 DWORD dwDIBOffset;
62 } CURSORICONFILEDIRENTRY;
63
64 typedef struct
65 {
66 WORD idReserved;
67 WORD idType;
68 WORD idCount;
69 CURSORICONFILEDIRENTRY idEntries[1];
70 } CURSORICONFILEDIR;
71
72 #include "poppack.h"
73
74 static HDC screen_dc;
75
76 static const WCHAR DISPLAYW[] = {'D','I','S','P','L','A','Y',0};
77
78 static struct list icon_cache = LIST_INIT( icon_cache );
79
80 /**********************************************************************
81 * User objects management
82 */
83
84 struct cursoricon_frame
85 {
86 UINT width; /* frame-specific width */
87 UINT height; /* frame-specific height */
88 UINT delay; /* frame-specific delay between this frame and the next (in jiffies) */
89 HBITMAP color; /* color bitmap */
90 HBITMAP alpha; /* pre-multiplied alpha bitmap for 32-bpp icons */
91 HBITMAP mask; /* mask bitmap (followed by color for 1-bpp icons) */
92 };
93
94 struct cursoricon_object
95 {
96 struct user_object obj; /* object header */
97 struct list entry; /* entry in shared icons list */
98 ULONG_PTR param; /* opaque param used by 16-bit code */
99 HMODULE module; /* module for icons loaded from resources */
100 LPWSTR resname; /* resource name for icons loaded from resources */
101 HRSRC rsrc; /* resource for shared icons */
102 BOOL is_icon; /* whether icon or cursor */
103 BOOL is_ani; /* whether this object is a static cursor or an animated cursor */
104 UINT delay; /* delay between this frame and the next (in jiffies) */
105 POINT hotspot;
106 };
107
108 struct static_cursoricon_object
109 {
110 struct cursoricon_object shared;
111 struct cursoricon_frame frame; /* frame-specific icon data */
112 };
113
114 struct animated_cursoricon_object
115 {
116 struct cursoricon_object shared;
117 UINT num_frames; /* number of frames in the icon/cursor */
118 UINT num_steps; /* number of sequence steps in the icon/cursor */
119 HICON frames[1]; /* list of animated cursor frames */
120 };
121
122 static HICON alloc_icon_handle( BOOL is_ani, UINT num_steps )
123 {
124 struct cursoricon_object *obj;
125 int icon_size;
126
127 if (is_ani)
128 icon_size = FIELD_OFFSET( struct animated_cursoricon_object, frames[num_steps] );
129 else
130 icon_size = sizeof( struct static_cursoricon_object );
131 obj = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, icon_size );
132
133 obj->delay = 0;
134 obj->is_ani = is_ani;
135 if (is_ani)
136 {
137 struct animated_cursoricon_object *ani_icon_data = (struct animated_cursoricon_object *) obj;
138
139 ani_icon_data->num_steps = num_steps;
140 ani_icon_data->num_frames = num_steps; /* changed later for some animated cursors */
141 }
142 return alloc_user_handle( &obj->obj, USER_ICON );
143 }
144
145 static struct cursoricon_object *get_icon_ptr( HICON handle )
146 {
147 struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON );
148 if (obj == OBJ_OTHER_PROCESS)
149 {
150 WARN( "icon handle %p from other process\n", handle );
151 obj = NULL;
152 }
153 return obj;
154 }
155
156 static void release_icon_ptr( HICON handle, struct cursoricon_object *ptr )
157 {
158 release_user_handle_ptr( ptr );
159 }
160
161 static struct cursoricon_frame *get_icon_frame( struct cursoricon_object *obj, int istep )
162 {
163 struct static_cursoricon_object *req_frame;
164
165 if (obj->is_ani)
166 {
167 struct animated_cursoricon_object *ani_icon_data;
168 struct cursoricon_object *frameobj;
169
170 ani_icon_data = (struct animated_cursoricon_object *) obj;
171 if (!(frameobj = get_icon_ptr( ani_icon_data->frames[istep] )))
172 return 0;
173 req_frame = (struct static_cursoricon_object *) frameobj;
174 }
175 else
176 req_frame = (struct static_cursoricon_object *) obj;
177
178 return &req_frame->frame;
179 }
180
181 static void release_icon_frame( struct cursoricon_object *obj, int istep, struct cursoricon_frame *frame )
182 {
183 if (obj->is_ani)
184 {
185 struct animated_cursoricon_object *ani_icon_data;
186 struct cursoricon_object *frameobj;
187
188 ani_icon_data = (struct animated_cursoricon_object *) obj;
189 frameobj = (struct cursoricon_object *) (((char *)frame) - FIELD_OFFSET(struct static_cursoricon_object, frame));
190 release_icon_ptr( ani_icon_data->frames[istep], frameobj );
191 }
192 }
193
194 static UINT get_icon_steps( struct cursoricon_object *obj )
195 {
196 if (obj->is_ani)
197 {
198 struct animated_cursoricon_object *ani_icon_data;
199
200 ani_icon_data = (struct animated_cursoricon_object *) obj;
201 return ani_icon_data->num_steps;
202 }
203 return 1;
204 }
205
206 static BOOL free_icon_handle( HICON handle )
207 {
208 struct cursoricon_object *obj = free_user_handle( handle, USER_ICON );
209
210 if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle );
211 else if (obj)
212 {
213 ULONG_PTR param = obj->param;
214 UINT i;
215
216 assert( !obj->rsrc ); /* shared icons can't be freed */
217
218 if (!obj->is_ani)
219 {
220 struct cursoricon_frame *frame = get_icon_frame( obj, 0 );
221
222 if (frame->alpha) DeleteObject( frame->alpha );
223 if (frame->color) DeleteObject( frame->color );
224 DeleteObject( frame->mask );
225 release_icon_frame( obj, 0, frame );
226 }
227 else
228 {
229 struct animated_cursoricon_object *ani_icon_data = (struct animated_cursoricon_object *) obj;
230
231 for (i=0; i<ani_icon_data->num_steps; i++)
232 {
233 HICON hFrame = ani_icon_data->frames[i];
234
235 if (hFrame)
236 {
237 UINT j;
238
239 free_icon_handle( ani_icon_data->frames[i] );
240 for (j=0; j<ani_icon_data->num_steps; j++)
241 {
242 if (ani_icon_data->frames[j] == hFrame)
243 ani_icon_data->frames[j] = 0;
244 }
245 }
246 }
247 }
248 if (!IS_INTRESOURCE( obj->resname )) HeapFree( GetProcessHeap(), 0, obj->resname );
249 HeapFree( GetProcessHeap(), 0, obj );
250 if (wow_handlers.free_icon_param && param) wow_handlers.free_icon_param( param );
251 USER_Driver->pDestroyCursorIcon( handle );
252 return TRUE;
253 }
254 return FALSE;
255 }
256
257 ULONG_PTR get_icon_param( HICON handle )
258 {
259 ULONG_PTR ret = 0;
260 struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON );
261
262 if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle );
263 else if (obj)
264 {
265 ret = obj->param;
266 release_user_handle_ptr( obj );
267 }
268 return ret;
269 }
270
271 ULONG_PTR set_icon_param( HICON handle, ULONG_PTR param )
272 {
273 ULONG_PTR ret = 0;
274 struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON );
275
276 if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle );
277 else if (obj)
278 {
279 ret = obj->param;
280 obj->param = param;
281 release_user_handle_ptr( obj );
282 }
283 return ret;
284 }
285
286
287 /***********************************************************************
288 * map_fileW
289 *
290 * Helper function to map a file to memory:
291 * name - file name
292 * [RETURN] ptr - pointer to mapped file
293 * [RETURN] filesize - pointer size of file to be stored if not NULL
294 */
295 static void *map_fileW( LPCWSTR name, LPDWORD filesize )
296 {
297 HANDLE hFile, hMapping;
298 LPVOID ptr = NULL;
299
300 hFile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL,
301 OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, 0 );
302 if (hFile != INVALID_HANDLE_VALUE)
303 {
304 hMapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
305 if (hMapping)
306 {
307 ptr = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 );
308 CloseHandle( hMapping );
309 if (filesize)
310 *filesize = GetFileSize( hFile, NULL );
311 }
312 CloseHandle( hFile );
313 }
314 return ptr;
315 }
316
317
318 /***********************************************************************
319 * get_dib_image_size
320 *
321 * Return the size of a DIB bitmap in bytes.
322 */
323 static int get_dib_image_size( int width, int height, int depth )
324 {
325 return (((width * depth + 31) / 8) & ~3) * abs( height );
326 }
327
328
329 /***********************************************************************
330 * bitmap_info_size
331 *
332 * Return the size of the bitmap info structure including color table.
333 */
334 static int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
335 {
336 unsigned int colors, size, masks = 0;
337
338 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
339 {
340 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
341 colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
342 return sizeof(BITMAPCOREHEADER) + colors *
343 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
344 }
345 else /* assume BITMAPINFOHEADER */
346 {
347 colors = info->bmiHeader.biClrUsed;
348 if (colors > 256) /* buffer overflow otherwise */
349 colors = 256;
350 if (!colors && (info->bmiHeader.biBitCount <= 8))
351 colors = 1 << info->bmiHeader.biBitCount;
352 if (info->bmiHeader.biCompression == BI_BITFIELDS) masks = 3;
353 size = max( info->bmiHeader.biSize, sizeof(BITMAPINFOHEADER) + masks * sizeof(DWORD) );
354 return size + colors * ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
355 }
356 }
357
358
359 /***********************************************************************
360 * copy_bitmap
361 *
362 * Helper function to duplicate a bitmap.
363 */
364 static HBITMAP copy_bitmap( HBITMAP bitmap )
365 {
366 HDC src, dst = 0;
367 HBITMAP new_bitmap = 0;
368 BITMAP bmp;
369
370 if (!bitmap) return 0;
371 if (!GetObjectW( bitmap, sizeof(bmp), &bmp )) return 0;
372
373 if ((src = CreateCompatibleDC( 0 )) && (dst = CreateCompatibleDC( 0 )))
374 {
375 SelectObject( src, bitmap );
376 if ((new_bitmap = CreateCompatibleBitmap( src, bmp.bmWidth, bmp.bmHeight )))
377 {
378 SelectObject( dst, new_bitmap );
379 BitBlt( dst, 0, 0, bmp.bmWidth, bmp.bmHeight, src, 0, 0, SRCCOPY );
380 }
381 }
382 DeleteDC( dst );
383 DeleteDC( src );
384 return new_bitmap;
385 }
386
387
388 /***********************************************************************
389 * is_dib_monochrome
390 *
391 * Returns whether a DIB can be converted to a monochrome DDB.
392 *
393 * A DIB can be converted if its color table contains only black and
394 * white. Black must be the first color in the color table.
395 *
396 * Note : If the first color in the color table is white followed by
397 * black, we can't convert it to a monochrome DDB with
398 * SetDIBits, because black and white would be inverted.
399 */
400 static BOOL is_dib_monochrome( const BITMAPINFO* info )
401 {
402 if (info->bmiHeader.biBitCount != 1) return FALSE;
403
404 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
405 {
406 const RGBTRIPLE *rgb = ((const BITMAPCOREINFO*)info)->bmciColors;
407
408 /* Check if the first color is black */
409 if ((rgb->rgbtRed == 0) && (rgb->rgbtGreen == 0) && (rgb->rgbtBlue == 0))
410 {
411 rgb++;
412
413 /* Check if the second color is white */
414 return ((rgb->rgbtRed == 0xff) && (rgb->rgbtGreen == 0xff)
415 && (rgb->rgbtBlue == 0xff));
416 }
417 else return FALSE;
418 }
419 else /* assume BITMAPINFOHEADER */
420 {
421 const RGBQUAD *rgb = info->bmiColors;
422
423 /* Check if the first color is black */
424 if ((rgb->rgbRed == 0) && (rgb->rgbGreen == 0) &&
425 (rgb->rgbBlue == 0) && (rgb->rgbReserved == 0))
426 {
427 rgb++;
428
429 /* Check if the second color is white */
430 return ((rgb->rgbRed == 0xff) && (rgb->rgbGreen == 0xff)
431 && (rgb->rgbBlue == 0xff) && (rgb->rgbReserved == 0));
432 }
433 else return FALSE;
434 }
435 }
436
437 /***********************************************************************
438 * DIB_GetBitmapInfo
439 *
440 * Get the info from a bitmap header.
441 * Return 1 for INFOHEADER, 0 for COREHEADER, -1 in case of failure.
442 */
443 static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
444 LONG *height, WORD *bpp, DWORD *compr )
445 {
446 if (header->biSize == sizeof(BITMAPCOREHEADER))
447 {
448 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header;
449 *width = core->bcWidth;
450 *height = core->bcHeight;
451 *bpp = core->bcBitCount;
452 *compr = 0;
453 return 0;
454 }
455 else if (header->biSize == sizeof(BITMAPINFOHEADER) ||
456 header->biSize == sizeof(BITMAPV4HEADER) ||
457 header->biSize == sizeof(BITMAPV5HEADER))
458 {
459 *width = header->biWidth;
460 *height = header->biHeight;
461 *bpp = header->biBitCount;
462 *compr = header->biCompression;
463 return 1;
464 }
465 WARN("unknown/wrong size (%u) for header\n", header->biSize);
466 return -1;
467 }
468
469 /**********************************************************************
470 * get_icon_size
471 */
472 BOOL get_icon_size( HICON handle, SIZE *size )
473 {
474 struct cursoricon_object *info;
475 struct cursoricon_frame *frame;
476
477 if (!(info = get_icon_ptr( handle ))) return FALSE;
478 frame = get_icon_frame( info, 0 );
479 size->cx = frame->width;
480 size->cy = frame->height;
481 release_icon_frame( info, 0, frame);
482 release_icon_ptr( handle, info );
483 return TRUE;
484 }
485
486 /*
487 * The following macro functions account for the irregularities of
488 * accessing cursor and icon resources in files and resource entries.
489 */
490 typedef BOOL (*fnGetCIEntry)( LPCVOID dir, DWORD size, int n,
491 int *width, int *height, int *bits );
492
493 /**********************************************************************
494 * CURSORICON_FindBestIcon
495 *
496 * Find the icon closest to the requested size and bit depth.
497 */
498 static int CURSORICON_FindBestIcon( LPCVOID dir, DWORD size, fnGetCIEntry get_entry,
499 int width, int height, int depth, UINT loadflags )
500 {
501 int i, cx, cy, bits, bestEntry = -1;
502 UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
503 UINT iTempXDiff, iTempYDiff, iTempColorDiff;
504
505 /* Find Best Fit */
506 iTotalDiff = 0xFFFFFFFF;
507 iColorDiff = 0xFFFFFFFF;
508
509 if (loadflags & LR_DEFAULTSIZE)
510 {
511 if (!width) width = GetSystemMetrics( SM_CXICON );
512 if (!height) height = GetSystemMetrics( SM_CYICON );
513 }
514 else if (!width && !height)
515 {
516 /* use the size of the first entry */
517 if (!get_entry( dir, size, 0, &width, &height, &bits )) return -1;
518 iTotalDiff = 0;
519 }
520
521 for ( i = 0; iTotalDiff && get_entry( dir, size, i, &cx, &cy, &bits ); i++ )
522 {
523 iTempXDiff = abs(width - cx);
524 iTempYDiff = abs(height - cy);
525
526 if(iTotalDiff > (iTempXDiff + iTempYDiff))
527 {
528 iXDiff = iTempXDiff;
529 iYDiff = iTempYDiff;
530 iTotalDiff = iXDiff + iYDiff;
531 }
532 }
533
534 /* Find Best Colors for Best Fit */
535 for ( i = 0; get_entry( dir, size, i, &cx, &cy, &bits ); i++ )
536 {
537 if(abs(width - cx) == iXDiff && abs(height - cy) == iYDiff)
538 {
539 iTempColorDiff = abs(depth - bits);
540 if(iColorDiff > iTempColorDiff)
541 {
542 bestEntry = i;
543 iColorDiff = iTempColorDiff;
544 }
545 }
546 }
547
548 return bestEntry;
549 }
550
551 static BOOL CURSORICON_GetResIconEntry( LPCVOID dir, DWORD size, int n,
552 int *width, int *height, int *bits )
553 {
554 const CURSORICONDIR *resdir = dir;
555 const ICONRESDIR *icon;
556
557 if ( resdir->idCount <= n )
558 return FALSE;
559 if ((const char *)&resdir->idEntries[n + 1] - (const char *)dir > size)
560 return FALSE;
561 icon = &resdir->idEntries[n].ResInfo.icon;
562 *width = icon->bWidth;
563 *height = icon->bHeight;
564 *bits = resdir->idEntries[n].wBitCount;
565 return TRUE;
566 }
567
568 /**********************************************************************
569 * CURSORICON_FindBestCursor
570 *
571 * Find the cursor closest to the requested size.
572 *
573 * FIXME: parameter 'color' ignored.
574 */
575 static int CURSORICON_FindBestCursor( LPCVOID dir, DWORD size, fnGetCIEntry get_entry,
576 int width, int height, int depth, UINT loadflags )
577 {
578 int i, maxwidth, maxheight, cx, cy, bits, bestEntry = -1;
579
580 if (loadflags & LR_DEFAULTSIZE)
581 {
582 if (!width) width = GetSystemMetrics( SM_CXCURSOR );
583 if (!height) height = GetSystemMetrics( SM_CYCURSOR );
584 }
585 else if (!width && !height)
586 {
587 /* use the first entry */
588 if (!get_entry( dir, size, 0, &width, &height, &bits )) return -1;
589 return 0;
590 }
591
592 /* Double height to account for AND and XOR masks */
593
594 height *= 2;
595
596 /* First find the largest one smaller than or equal to the requested size*/
597
598 maxwidth = maxheight = 0;
599 for ( i = 0; get_entry( dir, size, i, &cx, &cy, &bits ); i++ )
600 {
601 if ((cx <= width) && (cy <= height) &&
602 (cx > maxwidth) && (cy > maxheight))
603 {
604 bestEntry = i;
605 maxwidth = cx;
606 maxheight = cy;
607 }
608 }
609 if (bestEntry != -1) return bestEntry;
610
611 /* Now find the smallest one larger than the requested size */
612
613 maxwidth = maxheight = 255;
614 for ( i = 0; get_entry( dir, size, i, &cx, &cy, &bits ); i++ )
615 {
616 if (((cx < maxwidth) && (cy < maxheight)) || (bestEntry == -1))
617 {
618 bestEntry = i;
619 maxwidth = cx;
620 maxheight = cy;
621 }
622 }
623
624 return bestEntry;
625 }
626
627 static BOOL CURSORICON_GetResCursorEntry( LPCVOID dir, DWORD size, int n,
628 int *width, int *height, int *bits )
629 {
630 const CURSORICONDIR *resdir = dir;
631 const CURSORDIR *cursor;
632
633 if ( resdir->idCount <= n )
634 return FALSE;
635 if ((const char *)&resdir->idEntries[n + 1] - (const char *)dir > size)
636 return FALSE;
637 cursor = &resdir->idEntries[n].ResInfo.cursor;
638 *width = cursor->wWidth;
639 *height = cursor->wHeight;
640 *bits = resdir->idEntries[n].wBitCount;
641 return TRUE;
642 }
643
644 static const CURSORICONDIRENTRY *CURSORICON_FindBestIconRes( const CURSORICONDIR * dir, DWORD size,
645 int width, int height, int depth,
646 UINT loadflags )
647 {
648 int n;
649
650 n = CURSORICON_FindBestIcon( dir, size, CURSORICON_GetResIconEntry,
651 width, height, depth, loadflags );
652 if ( n < 0 )
653 return NULL;
654 return &dir->idEntries[n];
655 }
656
657 static const CURSORICONDIRENTRY *CURSORICON_FindBestCursorRes( const CURSORICONDIR *dir, DWORD size,
658 int width, int height, int depth,
659 UINT loadflags )
660 {
661 int n = CURSORICON_FindBestCursor( dir, size, CURSORICON_GetResCursorEntry,
662 width, height, depth, loadflags );
663 if ( n < 0 )
664 return NULL;
665 return &dir->idEntries[n];
666 }
667
668 static BOOL CURSORICON_GetFileEntry( LPCVOID dir, DWORD size, int n,
669 int *width, int *height, int *bits )
670 {
671 const CURSORICONFILEDIR *filedir = dir;
672 const CURSORICONFILEDIRENTRY *entry;
673 const BITMAPINFOHEADER *info;
674
675 if ( filedir->idCount <= n )
676 return FALSE;
677 if ((const char *)&filedir->idEntries[n + 1] - (const char *)dir > size)
678 return FALSE;
679 entry = &filedir->idEntries[n];
680 info = (const BITMAPINFOHEADER *)((const char *)dir + entry->dwDIBOffset);
681 if ((const char *)(info + 1) - (const char *)dir > size) return FALSE;
682 *width = entry->bWidth;
683 *height = entry->bHeight;
684 *bits = info->biBitCount;
685 return TRUE;
686 }
687
688 static const CURSORICONFILEDIRENTRY *CURSORICON_FindBestCursorFile( const CURSORICONFILEDIR *dir, DWORD size,
689 int width, int height, int depth,
690 UINT loadflags )
691 {
692 int n = CURSORICON_FindBestCursor( dir, size, CURSORICON_GetFileEntry,
693 width, height, depth, loadflags );
694 if ( n < 0 )
695 return NULL;
696 return &dir->idEntries[n];
697 }
698
699 static const CURSORICONFILEDIRENTRY *CURSORICON_FindBestIconFile( const CURSORICONFILEDIR *dir, DWORD size,
700 int width, int height, int depth,
701 UINT loadflags )
702 {
703 int n = CURSORICON_FindBestIcon( dir, size, CURSORICON_GetFileEntry,
704 width, height, depth, loadflags );
705 if ( n < 0 )
706 return NULL;
707 return &dir->idEntries[n];
708 }
709
710 /***********************************************************************
711 * bmi_has_alpha
712 */
713 static BOOL bmi_has_alpha( const BITMAPINFO *info, const void *bits )
714 {
715 int i;
716 BOOL has_alpha = FALSE;
717 const unsigned char *ptr = bits;
718
719 if (info->bmiHeader.biBitCount != 32) return FALSE;
720 for (i = 0; i < info->bmiHeader.biWidth * abs(info->bmiHeader.biHeight); i++, ptr += 4)
721 if ((has_alpha = (ptr[3] != 0))) break;
722 return has_alpha;
723 }
724
725 /***********************************************************************
726 * create_alpha_bitmap
727 *
728 * Create the alpha bitmap for a 32-bpp icon that has an alpha channel.
729 */
730 static HBITMAP create_alpha_bitmap( HBITMAP color, HBITMAP mask,
731 const BITMAPINFO *src_info, const void *color_bits )
732 {
733 HBITMAP alpha = 0;
734 BITMAPINFO *info = NULL;
735 BITMAP bm;
736 HDC hdc;
737 void *bits;
738 unsigned char *ptr;
739 int i;
740
741 if (!GetObjectW( color, sizeof(bm), &bm )) return 0;
742 if (bm.bmBitsPixel != 32) return 0;
743
744 if (!(hdc = CreateCompatibleDC( 0 ))) return 0;
745 if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) goto done;
746 info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
747 info->bmiHeader.biWidth = bm.bmWidth;
748 info->bmiHeader.biHeight = -bm.bmHeight;
749 info->bmiHeader.biPlanes = 1;
750 info->bmiHeader.biBitCount = 32;
751 info->bmiHeader.biCompression = BI_RGB;
752 info->bmiHeader.biSizeImage = bm.bmWidth * bm.bmHeight * 4;
753 info->bmiHeader.biXPelsPerMeter = 0;
754 info->bmiHeader.biYPelsPerMeter = 0;
755 info->bmiHeader.biClrUsed = 0;
756 info->bmiHeader.biClrImportant = 0;
757 if (!(alpha = CreateDIBSection( hdc, info, DIB_RGB_COLORS, &bits, NULL, 0 ))) goto done;
758
759 if (src_info)
760 {
761 SelectObject( hdc, alpha );
762 StretchDIBits( hdc, 0, 0, bm.bmWidth, bm.bmHeight,
763 0, 0, src_info->bmiHeader.biWidth, src_info->bmiHeader.biHeight,
764 color_bits, src_info, DIB_RGB_COLORS, SRCCOPY );
765
766 }
767 else
768 {
769 GetDIBits( hdc, color, 0, bm.bmHeight, bits, info, DIB_RGB_COLORS );
770 if (!bmi_has_alpha( info, bits ))
771 {
772 DeleteObject( alpha );
773 alpha = 0;
774 goto done;
775 }
776 }
777
778 /* pre-multiply by alpha */
779 for (i = 0, ptr = bits; i < bm.bmWidth * bm.bmHeight; i++, ptr += 4)
780 {
781 unsigned int alpha = ptr[3];
782 ptr[0] = ptr[0] * alpha / 255;
783 ptr[1] = ptr[1] * alpha / 255;
784 ptr[2] = ptr[2] * alpha / 255;
785 }
786
787 done:
788 DeleteDC( hdc );
789 HeapFree( GetProcessHeap(), 0, info );
790 return alpha;
791 }
792
793
794 /***********************************************************************
795 * create_icon_from_bmi
796 *
797 * Create an icon from its BITMAPINFO.
798 */
799 static HICON create_icon_from_bmi( BITMAPINFO *bmi, HMODULE module, LPCWSTR resname, HRSRC rsrc,
800 POINT hotspot, BOOL bIcon, INT width, INT height, UINT cFlag )
801 {
802 unsigned int size = bitmap_info_size( bmi, DIB_RGB_COLORS );
803 BOOL monochrome = is_dib_monochrome( bmi );
804 HBITMAP color = 0, mask = 0, alpha = 0;
805 const void *color_bits, *mask_bits;
806 BITMAPINFO *bmi_copy;
807 BOOL ret = FALSE;
808 BOOL do_stretch;
809 HICON hObj = 0;
810 HDC hdc = 0;
811
812 /* Check bitmap header */
813
814 if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) &&
815 (bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) ||
816 bmi->bmiHeader.biCompression != BI_RGB) )
817 {
818 WARN_(cursor)("\tinvalid resource bitmap header.\n");
819 return 0;
820 }
821
822 if (cFlag & LR_DEFAULTSIZE)
823 {
824 if (!width) width = GetSystemMetrics( bIcon ? SM_CXICON : SM_CXCURSOR );
825 if (!height) height = GetSystemMetrics( bIcon ? SM_CYICON : SM_CYCURSOR );
826 }
827 else
828 {
829 if (!width) width = bmi->bmiHeader.biWidth;
830 if (!height) height = bmi->bmiHeader.biHeight/2;
831 }
832 do_stretch = (bmi->bmiHeader.biHeight/2 != height) ||
833 (bmi->bmiHeader.biWidth != width);
834
835 /* Scale the hotspot */
836 if (bIcon)
837 {
838 hotspot.x = width / 2;
839 hotspot.y = height / 2;
840 }
841 else if (do_stretch)
842 {
843 hotspot.x = (hotspot.x * width) / bmi->bmiHeader.biWidth;
844 hotspot.y = (hotspot.y * height) / (bmi->bmiHeader.biHeight / 2);
845 }
846
847 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
848 if (!screen_dc) return 0;
849
850 if (!(bmi_copy = HeapAlloc( GetProcessHeap(), 0, max( size, FIELD_OFFSET( BITMAPINFO, bmiColors[2] )))))
851 return 0;
852 if (!(hdc = CreateCompatibleDC( 0 ))) goto done;
853
854 memcpy( bmi_copy, bmi, size );
855 bmi_copy->bmiHeader.biHeight /= 2;
856
857 color_bits = (const char*)bmi + size;
858 mask_bits = (const char*)color_bits +
859 get_dib_image_size( bmi->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight, bmi->bmiHeader.biBitCount );
860
861 alpha = 0;
862 if (monochrome)
863 {
864 if (!(mask = CreateBitmap( width, height * 2, 1, 1, NULL ))) goto done;
865 color = 0;
866
867 /* copy color data into second half of mask bitmap */
868 SelectObject( hdc, mask );
869 StretchDIBits( hdc, 0, height, width, height,
870 0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
871 color_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
872 }
873 else
874 {
875 if (!(mask = CreateBitmap( width, height, 1, 1, NULL ))) goto done;
876 if (!(color = CreateBitmap( width, height, GetDeviceCaps( screen_dc, PLANES ),
877 GetDeviceCaps( screen_dc, BITSPIXEL ), NULL )))
878 {
879 DeleteObject( mask );
880 goto done;
881 }
882 SelectObject( hdc, color );
883 StretchDIBits( hdc, 0, 0, width, height,
884 0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
885 color_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
886
887 if (bmi_has_alpha( bmi_copy, color_bits ))
888 alpha = create_alpha_bitmap( color, mask, bmi_copy, color_bits );
889
890 /* convert info to monochrome to copy the mask */
891 bmi_copy->bmiHeader.biBitCount = 1;
892 if (bmi_copy->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
893 {
894 RGBQUAD *rgb = bmi_copy->bmiColors;
895
896 bmi_copy->bmiHeader.biClrUsed = bmi_copy->bmiHeader.biClrImportant = 2;
897 rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
898 rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
899 rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
900 }
901 else
902 {
903 RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)bmi_copy) + 1);
904
905 rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
906 rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
907 }
908 }
909
910 SelectObject( hdc, mask );
911 StretchDIBits( hdc, 0, 0, width, height,
912 0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
913 mask_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
914 ret = TRUE;
915
916 done:
917 DeleteDC( hdc );
918 HeapFree( GetProcessHeap(), 0, bmi_copy );
919
920 if (ret)
921 hObj = alloc_icon_handle( FALSE, 1 );
922 if (hObj)
923 {
924 struct cursoricon_object *info = get_icon_ptr( hObj );
925 struct cursoricon_frame *frame;
926
927 info->is_icon = bIcon;
928 info->module = module;
929 info->hotspot = hotspot;
930 frame = get_icon_frame( info, 0 );
931 frame->delay = ~0;
932 frame->width = width;
933 frame->height = height;
934 frame->color = color;
935 frame->mask = mask;
936 frame->alpha = alpha;
937 release_icon_frame( info, 0, frame );
938 if (!IS_INTRESOURCE(resname))
939 {
940 info->resname = HeapAlloc( GetProcessHeap(), 0, (strlenW(resname) + 1) * sizeof(WCHAR) );
941 if (info->resname) strcpyW( info->resname, resname );
942 }
943 else info->resname = MAKEINTRESOURCEW( LOWORD(resname) );
944
945 if (module && (cFlag & LR_SHARED))
946 {
947 info->rsrc = rsrc;
948 list_add_head( &icon_cache, &info->entry );
949 }
950 release_icon_ptr( hObj, info );
951 USER_Driver->pCreateCursorIcon( hObj );
952 }
953 else
954 {
955 DeleteObject( color );
956 DeleteObject( alpha );
957 DeleteObject( mask );
958 }
959 return hObj;
960 }
961
962
963 /**********************************************************************
964 * .ANI cursor support
965 */
966 #define RIFF_FOURCC( c0, c1, c2, c3 ) \
967 ( (DWORD)(BYTE)(c0) | ( (DWORD)(BYTE)(c1) << 8 ) | \
968 ( (DWORD)(BYTE)(c2) << 16 ) | ( (DWORD)(BYTE)(c3) << 24 ) )
969
970 #define ANI_RIFF_ID RIFF_FOURCC('R', 'I', 'F', 'F')
971 #define ANI_LIST_ID RIFF_FOURCC('L', 'I', 'S', 'T')
972 #define ANI_ACON_ID RIFF_FOURCC('A', 'C', 'O', 'N')
973 #define ANI_anih_ID RIFF_FOURCC('a', 'n', 'i', 'h')
974 #define ANI_seq__ID RIFF_FOURCC('s', 'e', 'q', ' ')
975 #define ANI_fram_ID RIFF_FOURCC('f', 'r', 'a', 'm')
976 #define ANI_rate_ID RIFF_FOURCC('r', 'a', 't', 'e')
977
978 #define ANI_FLAG_ICON 0x1
979 #define ANI_FLAG_SEQUENCE 0x2
980
981 typedef struct {
982 DWORD header_size;
983 DWORD num_frames;
984 DWORD num_steps;
985 DWORD width;
986 DWORD height;
987 DWORD bpp;
988 DWORD num_planes;
989 DWORD display_rate;
990 DWORD flags;
991 } ani_header;
992
993 typedef struct {
994 DWORD data_size;
995 const unsigned char *data;
996 } riff_chunk_t;
997
998 static void dump_ani_header( const ani_header *header )
999 {
1000 TRACE(" header size: %d\n", header->header_size);
1001 TRACE(" frames: %d\n", header->num_frames);
1002 TRACE(" steps: %d\n", header->num_steps);
1003 TRACE(" width: %d\n", header->width);
1004 TRACE(" height: %d\n", header->height);
1005 TRACE(" bpp: %d\n", header->bpp);
1006 TRACE(" planes: %d\n", header->num_planes);
1007 TRACE(" display rate: %d\n", header->display_rate);
1008 TRACE(" flags: 0x%08x\n", header->flags);
1009 }
1010
1011
1012 /*
1013 * RIFF:
1014 * DWORD "RIFF"
1015 * DWORD size
1016 * DWORD riff_id
1017 * BYTE[] data
1018 *
1019 * LIST:
1020 * DWORD "LIST"
1021 * DWORD size
1022 * DWORD list_id
1023 * BYTE[] data
1024 *
1025 * CHUNK:
1026 * DWORD chunk_id
1027 * DWORD size
1028 * BYTE[] data
1029 */
1030 static void riff_find_chunk( DWORD chunk_id, DWORD chunk_type, const riff_chunk_t *parent_chunk, riff_chunk_t *chunk )
1031 {
1032 const unsigned char *ptr = parent_chunk->data;
1033 const unsigned char *end = parent_chunk->data + (parent_chunk->data_size - (2 * sizeof(DWORD)));
1034
1035 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) end -= sizeof(DWORD);
1036
1037 while (ptr < end)
1038 {
1039 if ((!chunk_type && *(const DWORD *)ptr == chunk_id )
1040 || (chunk_type && *(const DWORD *)ptr == chunk_type && *((const DWORD *)ptr + 2) == chunk_id ))
1041 {
1042 ptr += sizeof(DWORD);
1043 chunk->data_size = (*(const DWORD *)ptr + 1) & ~1;
1044 ptr += sizeof(DWORD);
1045 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) ptr += sizeof(DWORD);
1046 chunk->data = ptr;
1047
1048 return;
1049 }
1050
1051 ptr += sizeof(DWORD);
1052 ptr += (*(const DWORD *)ptr + 1) & ~1;
1053 ptr += sizeof(DWORD);
1054 }
1055 }
1056
1057
1058 /*
1059 * .ANI layout:
1060 *
1061 * RIFF:'ACON' RIFF chunk
1062 * |- CHUNK:'anih' Header
1063 * |- CHUNK:'seq ' Sequence information (optional)
1064 * \- LIST:'fram' Frame list
1065 * |- CHUNK:icon Cursor frames
1066 * |- CHUNK:icon
1067 * |- ...
1068 * \- CHUNK:icon
1069 */
1070 static HCURSOR CURSORICON_CreateIconFromANI( const LPBYTE bits, DWORD bits_size, INT width, INT height,
1071 INT depth, BOOL is_icon, UINT loadflags )
1072 {
1073 struct animated_cursoricon_object *ani_icon_data;
1074 struct cursoricon_object *info;
1075 DWORD *frame_rates = NULL;
1076 DWORD *frame_seq = NULL;
1077 ani_header header = {0};
1078 BOOL use_seq = FALSE;
1079 HCURSOR cursor = 0;
1080 UINT i, error = 0;
1081 HICON *frames;
1082
1083 riff_chunk_t root_chunk = { bits_size, bits };
1084 riff_chunk_t ACON_chunk = {0};
1085 riff_chunk_t anih_chunk = {0};
1086 riff_chunk_t fram_chunk = {0};
1087 riff_chunk_t rate_chunk = {0};
1088 riff_chunk_t seq_chunk = {0};
1089 const unsigned char *icon_chunk;
1090 const unsigned char *icon_data;
1091
1092 TRACE("bits %p, bits_size %d\n", bits, bits_size);
1093
1094 riff_find_chunk( ANI_ACON_ID, ANI_RIFF_ID, &root_chunk, &ACON_chunk );
1095 if (!ACON_chunk.data)
1096 {
1097 ERR("Failed to get root chunk.\n");
1098 return 0;
1099 }
1100
1101 riff_find_chunk( ANI_anih_ID, 0, &ACON_chunk, &anih_chunk );
1102 if (!anih_chunk.data)
1103 {
1104 ERR("Failed to get 'anih' chunk.\n");
1105 return 0;
1106 }
1107 memcpy( &header, anih_chunk.data, sizeof(header) );
1108 dump_ani_header( &header );
1109
1110 if (!(header.flags & ANI_FLAG_ICON))
1111 {
1112 FIXME("Raw animated icon/cursor data is not currently supported.\n");
1113 return 0;
1114 }
1115
1116 if (header.flags & ANI_FLAG_SEQUENCE)
1117 {
1118 riff_find_chunk( ANI_seq__ID, 0, &ACON_chunk, &seq_chunk );
1119 if (seq_chunk.data)
1120 {
1121 frame_seq = (DWORD *) seq_chunk.data;
1122 use_seq = TRUE;
1123 }
1124 else
1125 {
1126 FIXME("Sequence data expected but not found, assuming steps == frames.\n");
1127 header.num_steps = header.num_frames;
1128 }
1129 }
1130
1131 riff_find_chunk( ANI_rate_ID, 0, &ACON_chunk, &rate_chunk );
1132 if (rate_chunk.data)
1133 frame_rates = (DWORD *) rate_chunk.data;
1134
1135 riff_find_chunk( ANI_fram_ID, ANI_LIST_ID, &ACON_chunk, &fram_chunk );
1136 if (!fram_chunk.data)
1137 {
1138 ERR("Failed to get icon list.\n");
1139 return 0;
1140 }
1141
1142 cursor = alloc_icon_handle( TRUE, header.num_steps );
1143 if (!cursor) return 0;
1144 frames = HeapAlloc( GetProcessHeap(), 0, sizeof(DWORD)*header.num_frames );
1145 if (!frames)
1146 {
1147 free_icon_handle( cursor );
1148 return 0;
1149 }
1150
1151 info = get_icon_ptr( cursor );
1152 ani_icon_data = (struct animated_cursoricon_object *) info;
1153 info->is_icon = is_icon;
1154 ani_icon_data->num_frames = header.num_frames;
1155
1156 /* The .ANI stores the display rate in jiffies (1/60s) */
1157 info->delay = header.display_rate;
1158
1159 icon_chunk = fram_chunk.data;
1160 icon_data = fram_chunk.data + (2 * sizeof(DWORD));
1161 for (i=0; i<header.num_frames; i++)
1162 {
1163 const DWORD chunk_size = *(const DWORD *)(icon_chunk + sizeof(DWORD));
1164 const CURSORICONFILEDIRENTRY *entry;
1165 INT frameWidth, frameHeight;
1166 const BITMAPINFO *bmi;
1167
1168 entry = CURSORICON_FindBestIconFile((const CURSORICONFILEDIR *) icon_data,
1169 bits + bits_size - icon_data,
1170 width, height, depth, loadflags );
1171
1172 bmi = (const BITMAPINFO *) (icon_data + entry->dwDIBOffset);
1173 info->hotspot.x = entry->xHotspot;
1174 info->hotspot.y = entry->yHotspot;
1175 if (!header.width || !header.height)
1176 {
1177 frameWidth = entry->bWidth;
1178 frameHeight = entry->bHeight;
1179 }
1180 else
1181 {
1182 frameWidth = header.width;
1183 frameHeight = header.height;
1184 }
1185
1186 /* Grab a frame from the animation */
1187 frames[i] = create_icon_from_bmi( (BITMAPINFO *)bmi, NULL, NULL, NULL, info->hotspot,
1188 is_icon, frameWidth, frameHeight, loadflags );
1189 if (!frames[i])
1190 {
1191 FIXME_(cursor)("failed to convert animated cursor frame.\n");
1192 error = TRUE;
1193 if (i == 0)
1194 {
1195 FIXME_(cursor)("Completely failed to create animated cursor!\n");
1196 ani_icon_data->num_frames = 0;
1197 release_icon_ptr( cursor, info );
1198 free_icon_handle( cursor );
1199 HeapFree( GetProcessHeap(), 0, frames );
1200 return 0;
1201 }
1202 break;
1203 }
1204
1205 /* Advance to the next chunk */
1206 icon_chunk += chunk_size + (2 * sizeof(DWORD));
1207 icon_data = icon_chunk + (2 * sizeof(DWORD));
1208 }
1209
1210 /* There was an error but we at least decoded the first frame, so just use that frame */
1211 if (error)
1212 {
1213 FIXME_(cursor)("Error creating animated cursor, only using first frame!\n");
1214 for (i=1; i<ani_icon_data->num_frames; i++)
1215 free_icon_handle( ani_icon_data->frames[i] );
1216 use_seq = FALSE;
1217 info->delay = 0;
1218 ani_icon_data->num_steps = 1;
1219 ani_icon_data->num_frames = 1;
1220 }
1221
1222 /* Setup the animated frames in the correct sequence */
1223 for (i=0; i<ani_icon_data->num_steps; i++)
1224 {
1225 DWORD frame_id = use_seq ? frame_seq[i] : i;
1226 struct cursoricon_frame *frame;
1227
1228 if (frame_id >= ani_icon_data->num_frames)
1229 {
1230 frame_id = ani_icon_data->num_frames-1;
1231 ERR_(cursor)("Sequence indicates frame past end of list, corrupt?\n");
1232 }
1233 ani_icon_data->frames[i] = frames[frame_id];
1234 frame = get_icon_frame( info, i );
1235 if (frame_rates)
1236 frame->delay = frame_rates[i];
1237 else
1238 frame->delay = ~0;
1239 release_icon_frame( info, i, frame );
1240 }
1241
1242 HeapFree( GetProcessHeap(), 0, frames );
1243 release_icon_ptr( cursor, info );
1244
1245 return cursor;
1246 }
1247
1248
1249 /**********************************************************************
1250 * CreateIconFromResourceEx (USER32.@)
1251 *
1252 * FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
1253 * with cbSize parameter as well.
1254 */
1255 HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
1256 BOOL bIcon, DWORD dwVersion,
1257 INT width, INT height,
1258 UINT cFlag )
1259 {
1260 POINT hotspot;
1261 BITMAPINFO *bmi;
1262
1263 TRACE_(cursor)("%p (%u bytes), ver %08x, %ix%i %s %s\n",
1264 bits, cbSize, dwVersion, width, height,
1265 bIcon ? "icon" : "cursor", (cFlag & LR_MONOCHROME) ? "mono" : "" );
1266
1267 if (!bits) return 0;
1268
1269 if (dwVersion == 0x00020000)
1270 {
1271 FIXME_(cursor)("\t2.xx resources are not supported\n");
1272 return 0;
1273 }
1274
1275 /* Check if the resource is an animated icon/cursor */
1276 if (!memcmp(bits, "RIFF", 4))
1277 return CURSORICON_CreateIconFromANI( bits, cbSize, width, height,
1278 0 /* default depth */, bIcon, cFlag );
1279
1280 if (bIcon)
1281 {
1282 hotspot.x = width / 2;
1283 hotspot.y = height / 2;
1284 bmi = (BITMAPINFO *)bits;
1285 }
1286 else /* get the hotspot */
1287 {
1288 SHORT *pt = (SHORT *)bits;
1289 hotspot.x = pt[0];
1290 hotspot.y = pt[1];
1291 bmi = (BITMAPINFO *)(pt + 2);
1292 }
1293
1294 return create_icon_from_bmi( bmi, NULL, NULL, NULL, hotspot, bIcon, width, height, cFlag );
1295 }
1296
1297
1298 /**********************************************************************
1299 * CreateIconFromResource (USER32.@)
1300 */
1301 HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize,
1302 BOOL bIcon, DWORD dwVersion)
1303 {
1304 return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
1305 }
1306
1307
1308 static HICON CURSORICON_LoadFromFile( LPCWSTR filename,
1309 INT width, INT height, INT depth,
1310 BOOL fCursor, UINT loadflags)
1311 {
1312 const CURSORICONFILEDIRENTRY *entry;
1313 const CURSORICONFILEDIR *dir;
1314 DWORD filesize = 0;
1315 HICON hIcon = 0;
1316 LPBYTE bits;
1317 POINT hotspot;
1318
1319 TRACE("loading %s\n", debugstr_w( filename ));
1320
1321 bits = map_fileW( filename, &filesize );
1322 if (!bits)
1323 return hIcon;
1324
1325 /* Check for .ani. */
1326 if (memcmp( bits, "RIFF", 4 ) == 0)
1327 {
1328 hIcon = CURSORICON_CreateIconFromANI( bits, filesize, width, height, depth, !fCursor, loadflags );
1329 goto end;
1330 }
1331
1332 dir = (const CURSORICONFILEDIR*) bits;
1333 if ( filesize < FIELD_OFFSET( CURSORICONFILEDIR, idEntries[dir->idCount] ))
1334 goto end;
1335
1336 if ( fCursor )
1337 entry = CURSORICON_FindBestCursorFile( dir, filesize, width, height, depth, loadflags );
1338 else
1339 entry = CURSORICON_FindBestIconFile( dir, filesize, width, height, depth, loadflags );
1340
1341 if ( !entry )
1342 goto end;
1343
1344 /* check that we don't run off the end of the file */
1345 if ( entry->dwDIBOffset > filesize )
1346 goto end;
1347 if ( entry->dwDIBOffset + entry->dwDIBSize > filesize )
1348 goto end;
1349
1350 hotspot.x = entry->xHotspot;
1351 hotspot.y = entry->yHotspot;
1352 hIcon = create_icon_from_bmi( (BITMAPINFO *)&bits[entry->dwDIBOffset], NULL, NULL, NULL,
1353 hotspot, !fCursor, width, height, loadflags );
1354 end:
1355 TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon );
1356 UnmapViewOfFile( bits );
1357 return hIcon;
1358 }
1359
1360 /**********************************************************************
1361 * CURSORICON_Load
1362 *
1363 * Load a cursor or icon from resource or file.
1364 */
1365 static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
1366 INT width, INT height, INT depth,
1367 BOOL fCursor, UINT loadflags)
1368 {
1369 HANDLE handle = 0;
1370 HICON hIcon = 0;
1371 HRSRC hRsrc;
1372 DWORD size;
1373 const CURSORICONDIR *dir;
1374 const CURSORICONDIRENTRY *dirEntry;
1375 LPBYTE bits;
1376 WORD wResId;
1377 POINT hotspot;
1378
1379 TRACE("%p, %s, %dx%d, depth %d, fCursor %d, flags 0x%04x\n",
1380 hInstance, debugstr_w(name), width, height, depth, fCursor, loadflags);
1381
1382 if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
1383 return CURSORICON_LoadFromFile( name, width, height, depth, fCursor, loadflags );
1384
1385 if (!hInstance) hInstance = user32_module; /* Load OEM cursor/icon */
1386
1387 /* don't cache 16-bit instances (FIXME: should never get 16-bit instances in the first place) */
1388 if ((ULONG_PTR)hInstance >> 16 == 0) loadflags &= ~LR_SHARED;
1389
1390 /* Get directory resource ID */
1391
1392 if (!(hRsrc = FindResourceW( hInstance, name,
1393 (LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
1394 {
1395 /* try animated resource */
1396 if (!(hRsrc = FindResourceW( hInstance, name,
1397 (LPWSTR)(fCursor ? RT_ANICURSOR : RT_ANIICON) ))) return 0;
1398 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1399 bits = LockResource( handle );
1400 return CURSORICON_CreateIconFromANI( bits, SizeofResource( hInstance, handle ),
1401 width, height, depth, !fCursor, loadflags );
1402 }
1403
1404 /* Find the best entry in the directory */
1405
1406 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1407 if (!(dir = LockResource( handle ))) return 0;
1408 size = SizeofResource( hInstance, hRsrc );
1409 if (fCursor)
1410 dirEntry = CURSORICON_FindBestCursorRes( dir, size, width, height, depth, loadflags );
1411 else
1412 dirEntry = CURSORICON_FindBestIconRes( dir, size, width, height, depth, loadflags );
1413 if (!dirEntry) return 0;
1414 wResId = dirEntry->wResId;
1415 FreeResource( handle );
1416
1417 /* Load the resource */
1418
1419 if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
1420 (LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0;
1421
1422 /* If shared icon, check whether it was already loaded */
1423 if (loadflags & LR_SHARED)
1424 {
1425 struct cursoricon_object *ptr;
1426
1427 USER_Lock();
1428 LIST_FOR_EACH_ENTRY( ptr, &icon_cache, struct cursoricon_object, entry )
1429 {
1430 if (ptr->module != hInstance) continue;
1431 if (ptr->rsrc != hRsrc) continue;
1432 hIcon = ptr->obj.handle;
1433 break;
1434 }
1435 USER_Unlock();
1436 if (hIcon) return hIcon;
1437 }
1438
1439 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1440 bits = LockResource( handle );
1441
1442 if (!fCursor)
1443 {
1444 hotspot.x = width / 2;
1445 hotspot.y = height / 2;
1446 }
1447 else /* get the hotspot */
1448 {
1449 SHORT *pt = (SHORT *)bits;
1450 hotspot.x = pt[0];
1451 hotspot.y = pt[1];
1452 bits += 2 * sizeof(SHORT);
1453 }
1454 hIcon = create_icon_from_bmi( (BITMAPINFO *)bits, hInstance, name, hRsrc,
1455 hotspot, !fCursor, width, height, loadflags );
1456 FreeResource( handle );
1457 return hIcon;
1458 }
1459
1460
1461 /***********************************************************************
1462 * CreateCursor (USER32.@)
1463 */
1464 HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
1465 INT xHotSpot, INT yHotSpot,
1466 INT nWidth, INT nHeight,
1467 LPCVOID lpANDbits, LPCVOID lpXORbits )
1468 {
1469 ICONINFO info;
1470 HCURSOR hCursor;
1471
1472 TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
1473 nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
1474
1475 info.fIcon = FALSE;
1476 info.xHotspot = xHotSpot;
1477 info.yHotspot = yHotSpot;
1478 info.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1479 info.hbmColor = CreateBitmap( nWidth, nHeight, 1, 1, lpXORbits );
1480 hCursor = CreateIconIndirect( &info );
1481 DeleteObject( info.hbmMask );
1482 DeleteObject( info.hbmColor );
1483 return hCursor;
1484 }
1485
1486
1487 /***********************************************************************
1488 * CreateIcon (USER32.@)
1489 *
1490 * Creates an icon based on the specified bitmaps. The bitmaps must be
1491 * provided in a device dependent format and will be resized to
1492 * (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
1493 * depth. The provided bitmaps must be top-down bitmaps.
1494 * Although Windows does not support 15bpp(*) this API must support it
1495 * for Winelib applications.
1496 *
1497 * (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
1498 * format!
1499 *
1500 * RETURNS
1501 * Success: handle to an icon
1502 * Failure: NULL
1503 *
1504 * FIXME: Do we need to resize the bitmaps?
1505 */
1506 HICON WINAPI CreateIcon(
1507 HINSTANCE hInstance, /* [in] the application's hInstance */
1508 INT nWidth, /* [in] the width of the provided bitmaps */
1509 INT nHeight, /* [in] the height of the provided bitmaps */
1510 BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
1511 BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
1512 LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
1513 LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
1514 {
1515 ICONINFO iinfo;
1516 HICON hIcon;
1517
1518 TRACE_(icon)("%dx%d, planes %d, bpp %d, xor %p, and %p\n",
1519 nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits, lpANDbits);
1520
1521 iinfo.fIcon = TRUE;
1522 iinfo.xHotspot = nWidth / 2;
1523 iinfo.yHotspot = nHeight / 2;
1524 iinfo.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1525 iinfo.hbmColor = CreateBitmap( nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits );
1526
1527 hIcon = CreateIconIndirect( &iinfo );
1528
1529 DeleteObject( iinfo.hbmMask );
1530 DeleteObject( iinfo.hbmColor );
1531
1532 return hIcon;
1533 }
1534
1535
1536 /***********************************************************************
1537 * CopyIcon (USER32.@)
1538 */
1539 HICON WINAPI CopyIcon( HICON hIcon )
1540 {
1541 struct cursoricon_object *ptrOld, *ptrNew;
1542 HICON hNew;
1543
1544 if (!(ptrOld = get_icon_ptr( hIcon )))
1545 {
1546 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
1547 return 0;
1548 }
1549 if ((hNew = alloc_icon_handle( FALSE, 1 )))
1550 {
1551 struct cursoricon_frame *frameOld, *frameNew;
1552
1553 ptrNew = get_icon_ptr( hNew );
1554 ptrNew->is_icon = ptrOld->is_icon;
1555 ptrNew->hotspot = ptrOld->hotspot;
1556 if (!(frameOld = get_icon_frame( ptrOld, 0 )))
1557 {
1558 release_icon_ptr( hIcon, ptrOld );
1559 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
1560 return 0;
1561 }
1562 if (!(frameNew = get_icon_frame( ptrNew, 0 )))
1563 {
1564 release_icon_frame( ptrOld, 0, frameOld );
1565 release_icon_ptr( hIcon, ptrOld );
1566 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
1567 return 0;
1568 }
1569 frameNew->delay = 0;
1570 frameNew->width = frameOld->width;
1571 frameNew->height = frameOld->height;
1572 frameNew->mask = copy_bitmap( frameOld->mask );
1573 frameNew->color = copy_bitmap( frameOld->color );
1574 frameNew->alpha = copy_bitmap( frameOld->alpha );
1575 release_icon_frame( ptrOld, 0, frameOld );
1576 release_icon_frame( ptrNew, 0, frameNew );
1577 release_icon_ptr( hNew, ptrNew );
1578 }
1579 release_icon_ptr( hIcon, ptrOld );
1580 if (hNew) USER_Driver->pCreateCursorIcon( hNew );
1581 return hNew;
1582 }
1583
1584
1585 /***********************************************************************
1586 * DestroyIcon (USER32.@)
1587 */
1588 BOOL WINAPI DestroyIcon( HICON hIcon )
1589 {
1590 BOOL ret = FALSE;
1591 struct cursoricon_object *obj = get_icon_ptr( hIcon );
1592
1593 TRACE_(icon)("%p\n", hIcon );
1594
1595 if (obj)
1596 {
1597 BOOL shared = (obj->rsrc != NULL);
1598 release_icon_ptr( hIcon, obj );
1599 ret = (GetCursor() != hIcon);
1600 if (!shared) free_icon_handle( hIcon );
1601 }
1602 return ret;
1603 }
1604
1605
1606 /***********************************************************************
1607 * DestroyCursor (USER32.@)
1608 */
1609 BOOL WINAPI DestroyCursor( HCURSOR hCursor )
1610 {
1611 return DestroyIcon( hCursor );
1612 }
1613
1614 /***********************************************************************
1615 * DrawIcon (USER32.@)
1616 */
1617 BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
1618 {
1619 return DrawIconEx( hdc, x, y, hIcon, 0, 0, 0, 0, DI_NORMAL | DI_COMPAT | DI_DEFAULTSIZE );
1620 }
1621
1622 /***********************************************************************
1623 * SetCursor (USER32.@)
1624 *
1625 * Set the cursor shape.
1626 *
1627 * RETURNS
1628 * A handle to the previous cursor shape.
1629 */
1630 HCURSOR WINAPI DECLSPEC_HOTPATCH SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
1631 {
1632 struct cursoricon_object *obj;
1633 HCURSOR hOldCursor;
1634 int show_count;
1635 BOOL ret;
1636
1637 TRACE("%p\n", hCursor);
1638
1639 SERVER_START_REQ( set_cursor )
1640 {
1641 req->flags = SET_CURSOR_HANDLE;
1642 req->handle = wine_server_user_handle( hCursor );
1643 if ((ret = !wine_server_call_err( req )))
1644 {
1645 hOldCursor = wine_server_ptr_handle( reply->prev_handle );
1646 show_count = reply->prev_count;
1647 }
1648 }
1649 SERVER_END_REQ;
1650
1651 if (!ret) return 0;
1652 USER_Driver->pSetCursor( show_count >= 0 ? hCursor : 0 );
1653
1654 if (!(obj = get_icon_ptr( hOldCursor ))) return 0;
1655 release_icon_ptr( hOldCursor, obj );
1656 return hOldCursor;
1657 }
1658
1659 /***********************************************************************
1660 * ShowCursor (USER32.@)
1661 */
1662 INT WINAPI DECLSPEC_HOTPATCH ShowCursor( BOOL bShow )
1663 {
1664 HCURSOR cursor;
1665 int increment = bShow ? 1 : -1;
1666 int count;
1667
1668 SERVER_START_REQ( set_cursor )
1669 {
1670 req->flags = SET_CURSOR_COUNT;
1671 req->show_count = increment;
1672 wine_server_call( req );
1673 cursor = wine_server_ptr_handle( reply->prev_handle );
1674 count = reply->prev_count + increment;
1675 }
1676 SERVER_END_REQ;
1677
1678 TRACE("%d, count=%d\n", bShow, count );
1679
1680 if (bShow && !count) USER_Driver->pSetCursor( cursor );
1681 else if (!bShow && count == -1) USER_Driver->pSetCursor( 0 );
1682
1683 return count;
1684 }
1685
1686 /***********************************************************************
1687 * GetCursor (USER32.@)
1688 */
1689 HCURSOR WINAPI GetCursor(void)
1690 {
1691 HCURSOR ret;
1692
1693 SERVER_START_REQ( set_cursor )
1694 {
1695 req->flags = 0;
1696 wine_server_call( req );
1697 ret = wine_server_ptr_handle( reply->prev_handle );
1698 }
1699 SERVER_END_REQ;
1700 return ret;
1701 }
1702
1703
1704 /***********************************************************************
1705 * ClipCursor (USER32.@)
1706 */
1707 BOOL WINAPI DECLSPEC_HOTPATCH ClipCursor( const RECT *rect )
1708 {
1709 BOOL ret;
1710 RECT new_rect;
1711
1712 TRACE( "Clipping to %s\n", wine_dbgstr_rect(rect) );
1713
1714 if (rect && (rect->left > rect->right || rect->top > rect->bottom)) return FALSE;
1715
1716 SERVER_START_REQ( set_cursor )
1717 {
1718 req->clip_msg = WM_WINE_CLIPCURSOR;
1719 if (rect)
1720 {
1721 req->flags = SET_CURSOR_CLIP;
1722 req->clip.left = rect->left;
1723 req->clip.top = rect->top;
1724 req->clip.right = rect->right;
1725 req->clip.bottom = rect->bottom;
1726 }
1727 else req->flags = SET_CURSOR_NOCLIP;
1728
1729 if ((ret = !wine_server_call( req )))
1730 {
1731 new_rect.left = reply->new_clip.left;
1732 new_rect.top = reply->new_clip.top;
1733 new_rect.right = reply->new_clip.right;
1734 new_rect.bottom = reply->new_clip.bottom;
1735 }
1736 }
1737 SERVER_END_REQ;
1738 if (ret) USER_Driver->pClipCursor( &new_rect );
1739 return ret;
1740 }
1741
1742
1743 /***********************************************************************
1744 * GetClipCursor (USER32.@)
1745 */
1746 BOOL WINAPI DECLSPEC_HOTPATCH GetClipCursor( RECT *rect )
1747 {
1748 BOOL ret;
1749
1750 if (!rect) return FALSE;
1751
1752 SERVER_START_REQ( set_cursor )
1753 {
1754 req->flags = 0;
1755 if ((ret = !wine_server_call( req )))
1756 {
1757 rect->left = reply->new_clip.left;
1758 rect->top = reply->new_clip.top;
1759 rect->right = reply->new_clip.right;
1760 rect->bottom = reply->new_clip.bottom;
1761 }
1762 }
1763 SERVER_END_REQ;
1764 return ret;
1765 }
1766
1767
1768 /***********************************************************************
1769 * SetSystemCursor (USER32.@)
1770 */
1771 BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id)
1772 {
1773 FIXME("(%p,%08x),stub!\n", hcur, id);
1774 return TRUE;
1775 }
1776
1777
1778 /**********************************************************************
1779 * LookupIconIdFromDirectoryEx (USER32.@)
1780 */
1781 INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
1782 INT width, INT height, UINT cFlag )
1783 {
1784 const CURSORICONDIR *dir = (const CURSORICONDIR*)xdir;
1785 UINT retVal = 0;
1786 if( dir && !dir->idReserved && (dir->idType & 3) )
1787 {
1788 const CURSORICONDIRENTRY* entry;
1789
1790 const HDC hdc = GetDC(0);
1791 const int depth = (cFlag & LR_MONOCHROME) ?
1792 1 : GetDeviceCaps(hdc, BITSPIXEL);
1793 ReleaseDC(0, hdc);
1794
1795 if( bIcon )
1796 entry = CURSORICON_FindBestIconRes( dir, ~0u, width, height, depth, LR_DEFAULTSIZE );
1797 else
1798 entry = CURSORICON_FindBestCursorRes( dir, ~0u, width, height, depth, LR_DEFAULTSIZE );
1799
1800 if( entry ) retVal = entry->wResId;
1801 }
1802 else WARN_(cursor)("invalid resource directory\n");
1803 return retVal;
1804 }
1805
1806 /**********************************************************************
1807 * LookupIconIdFromDirectory (USER32.@)
1808 */
1809 INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
1810 {
1811 return LookupIconIdFromDirectoryEx( dir, bIcon, 0, 0, bIcon ? 0 : LR_MONOCHROME );
1812 }
1813
1814 /***********************************************************************
1815 * LoadCursorW (USER32.@)
1816 */
1817 HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
1818 {
1819 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1820
1821 return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
1822 LR_SHARED | LR_DEFAULTSIZE );
1823 }
1824
1825 /***********************************************************************
1826 * LoadCursorA (USER32.@)
1827 */
1828 HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
1829 {
1830 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1831
1832 return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
1833 LR_SHARED | LR_DEFAULTSIZE );
1834 }
1835
1836 /***********************************************************************
1837 * LoadCursorFromFileW (USER32.@)
1838 */
1839 HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
1840 {
1841 TRACE("%s\n", debugstr_w(name));
1842
1843 return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
1844 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1845 }
1846
1847 /***********************************************************************
1848 * LoadCursorFromFileA (USER32.@)
1849 */
1850 HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
1851 {
1852 TRACE("%s\n", debugstr_a(name));
1853
1854 return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
1855 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1856 }
1857
1858 /***********************************************************************
1859 * LoadIconW (USER32.@)
1860 */
1861 HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
1862 {
1863 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1864
1865 return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
1866 LR_SHARED | LR_DEFAULTSIZE );
1867 }
1868
1869 /***********************************************************************
1870 * LoadIconA (USER32.@)
1871 */
1872 HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
1873 {
1874 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1875
1876 return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
1877 LR_SHARED | LR_DEFAULTSIZE );
1878 }
1879
1880 /**********************************************************************
1881 * GetCursorFrameInfo (USER32.@)
1882 *
1883 * NOTES
1884 * So far no use has been found for the second parameter, it is currently presumed
1885 * that this parameter is reserved for future use.
1886 *
1887 * PARAMS
1888 * hCursor [I] Handle to cursor for which to retrieve information
1889 * reserved [I] No purpose has been found for this parameter (may be NULL)
1890 * istep [I] The step of the cursor for which to retrieve information
1891 * rate_jiffies [O] Pointer to DWORD that receives the frame-specific delay (cannot be NULL)
1892 * num_steps [O] Pointer to DWORD that receives the number of steps in the cursor (cannot be NULL)
1893 *
1894 * RETURNS
1895 * Success: Handle to a frame of the cursor (specified by istep)
1896 * Failure: NULL cursor (0)
1897 */
1898 HCURSOR WINAPI GetCursorFrameInfo(HCURSOR hCursor, DWORD reserved, DWORD istep, DWORD *rate_jiffies, DWORD *num_steps)
1899 {
1900 struct cursoricon_object *ptr;
1901 HCURSOR ret = 0;
1902 UINT icon_steps;
1903
1904 if (rate_jiffies == NULL || num_steps == NULL) return 0;
1905
1906 if (!(ptr = get_icon_ptr( hCursor ))) return 0;
1907
1908 TRACE("%p => %d %d %p %p\n", hCursor, reserved, istep, rate_jiffies, num_steps);
1909 if (reserved != 0)
1910 FIXME("Second parameter non-zero (%d), please report this!\n", reserved);
1911
1912 icon_steps = get_icon_steps(ptr);
1913 if (istep < icon_steps || !ptr->is_ani)
1914 {
1915 struct animated_cursoricon_object *ani_icon_data = (struct animated_cursoricon_object *) ptr;
1916 UINT icon_frames = 1;
1917
1918 if (ptr->is_ani)
1919 icon_frames = ani_icon_data->num_frames;
1920 if (ptr->is_ani && icon_frames > 1)
1921 ret = ani_icon_data->frames[istep];
1922 else
1923 ret = hCursor;
1924 if (icon_frames == 1)
1925 {
1926 *rate_jiffies = 0;
1927 *num_steps = 1;
1928 }
1929 else if (icon_steps == 1)
1930 {
1931 *num_steps = ~0;
1932 *rate_jiffies = ptr->delay;
1933 }
1934 else if (istep < icon_steps)
1935 {
1936 struct cursoricon_frame *frame;
1937
1938 *num_steps = icon_steps;
1939 frame = get_icon_frame( ptr, istep );
1940 if (get_icon_steps(ptr) == 1)
1941 *num_steps = ~0;
1942 else
1943 *num_steps = get_icon_steps(ptr);
1944 /* If this specific frame does not have a delay then use the global delay */
1945 if (frame->delay == ~0)
1946 *rate_jiffies = ptr->delay;
1947 else
1948 *rate_jiffies = frame->delay;
1949 release_icon_frame( ptr, istep, frame );
1950 }
1951 }
1952
1953 release_icon_ptr( hCursor, ptr );
1954
1955 return ret;
1956 }
1957
1958 /**********************************************************************
1959 * GetIconInfo (USER32.@)
1960 */
1961 BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
1962 {
1963 ICONINFOEXW infoW;
1964
1965 infoW.cbSize = sizeof(infoW);
1966 if (!GetIconInfoExW( hIcon, &infoW )) return FALSE;
1967 iconinfo->fIcon = infoW.fIcon;
1968 iconinfo->xHotspot = infoW.xHotspot;
1969 iconinfo->yHotspot = infoW.yHotspot;
1970 iconinfo->hbmColor = infoW.hbmColor;
1971 iconinfo->hbmMask = infoW.hbmMask;
1972 return TRUE;
1973 }
1974
1975 /**********************************************************************
1976 * GetIconInfoExA (USER32.@)
1977 */
1978 BOOL WINAPI GetIconInfoExA( HICON icon, ICONINFOEXA *info )
1979 {
1980 ICONINFOEXW infoW;
1981
1982 if (info->cbSize != sizeof(*info))
1983 {
1984 SetLastError( ERROR_INVALID_PARAMETER );
1985 return FALSE;
1986 }
1987 infoW.cbSize = sizeof(infoW);
1988 if (!GetIconInfoExW( icon, &infoW )) return FALSE;
1989 info->fIcon = infoW.fIcon;
1990 info->xHotspot = infoW.xHotspot;
1991 info->yHotspot = infoW.yHotspot;
1992 info->hbmColor = infoW.hbmColor;
1993 info->hbmMask = infoW.hbmMask;
1994 info->wResID = infoW.wResID;
1995 WideCharToMultiByte( CP_ACP, 0, infoW.szModName, -1, info->szModName, MAX_PATH, NULL, NULL );
1996 WideCharToMultiByte( CP_ACP, 0, infoW.szResName, -1, info->szResName, MAX_PATH, NULL, NULL );
1997 return TRUE;
1998 }
1999
2000 /**********************************************************************
2001 * GetIconInfoExW (USER32.@)
2002 */
2003 BOOL WINAPI GetIconInfoExW( HICON icon, ICONINFOEXW *info )
2004 {
2005 struct cursoricon_frame *frame;
2006 struct cursoricon_object *ptr;
2007 HMODULE module;
2008 BOOL ret = TRUE;
2009
2010 if (info->cbSize != sizeof(*info))
2011 {
2012 SetLastError( ERROR_INVALID_PARAMETER );
2013 return FALSE;
2014 }
2015 if (!(ptr = get_icon_ptr( icon )))
2016 {
2017 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
2018 return FALSE;
2019 }
2020
2021 frame = get_icon_frame( ptr, 0 );
2022 if (!frame)
2023 {
2024 release_icon_ptr( icon, ptr );
2025 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
2026 return FALSE;
2027 }
2028
2029 TRACE("%p => %dx%d\n", icon, frame->width, frame->height);
2030
2031 info->fIcon = ptr->is_icon;
2032 info->xHotspot = ptr->hotspot.x;
2033 info->yHotspot = ptr->hotspot.y;
2034 info->hbmColor = copy_bitmap( frame->color );
2035 info->hbmMask = copy_bitmap( frame->mask );
2036 info->wResID = 0;
2037 info->szModName[0] = 0;
2038 info->szResName[0] = 0;
2039 if (ptr->module)
2040 {
2041 if (IS_INTRESOURCE( ptr->resname )) info->wResID = LOWORD( ptr->resname );
2042 else lstrcpynW( info->szResName, ptr->resname, MAX_PATH );
2043 }
2044 if (!info->hbmMask || (!info->hbmColor && frame->color))
2045 {
2046 DeleteObject( info->hbmMask );
2047 DeleteObject( info->hbmColor );
2048 ret = FALSE;
2049 }
2050 module = ptr->module;
2051 release_icon_frame( ptr, 0, frame );
2052 release_icon_ptr( icon, ptr );
2053 if (ret && module) GetModuleFileNameW( module, info->szModName, MAX_PATH );
2054 return ret;
2055 }
2056
2057 /* copy an icon bitmap, even when it can't be selected into a DC */
2058 /* helper for CreateIconIndirect */
2059 static void stretch_blt_icon( HDC hdc_dst, int dst_x, int dst_y, int dst_width, int dst_height,
2060 HBITMAP src, int width, int height )
2061 {
2062 HDC hdc = CreateCompatibleDC( 0 );
2063
2064 if (!SelectObject( hdc, src )) /* do it the hard way */
2065 {
2066 BITMAPINFO *info;
2067 void *bits;
2068
2069 if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) return;
2070 info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
2071 info->bmiHeader.biWidth = width;
2072 info->bmiHeader.biHeight = height;
2073 info->bmiHeader.biPlanes = GetDeviceCaps( hdc_dst, PLANES );
2074 info->bmiHeader.biBitCount = GetDeviceCaps( hdc_dst, BITSPIXEL );
2075 info->bmiHeader.biCompression = BI_RGB;
2076 info->bmiHeader.biSizeImage = get_dib_image_size( width, height, info->bmiHeader.biBitCount );
2077 info->bmiHeader.biXPelsPerMeter = 0;
2078 info->bmiHeader.biYPelsPerMeter = 0;
2079 info->bmiHeader.biClrUsed = 0;
2080 info->bmiHeader.biClrImportant = 0;
2081 bits = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage );
2082 if (bits && GetDIBits( hdc, src, 0, height, bits, info, DIB_RGB_COLORS ))
2083 StretchDIBits( hdc_dst, dst_x, dst_y, dst_width, dst_height,
2084 0, 0, width, height, bits, info, DIB_RGB_COLORS, SRCCOPY );
2085
2086 HeapFree( GetProcessHeap(), 0, bits );
2087 HeapFree( GetProcessHeap(), 0, info );
2088 }
2089 else StretchBlt( hdc_dst, dst_x, dst_y, dst_width, dst_height, hdc, 0, 0, width, height, SRCCOPY );
2090
2091 DeleteDC( hdc );
2092 }
2093
2094 /**********************************************************************
2095 * CreateIconIndirect (USER32.@)
2096 */
2097 HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
2098 {
2099 BITMAP bmpXor, bmpAnd;
2100 HICON hObj;
2101 HBITMAP color = 0, mask;
2102 int width, height;
2103 HDC hdc;
2104
2105 TRACE("color %p, mask %p, hotspot %ux%u, fIcon %d\n",
2106 iconinfo->hbmColor, iconinfo->hbmMask,
2107 iconinfo->xHotspot, iconinfo->yHotspot, iconinfo->fIcon);
2108
2109 if (!iconinfo->hbmMask) return 0;
2110
2111 GetObjectW( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
2112 TRACE("mask: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2113 bmpAnd.bmWidth, bmpAnd.bmHeight, bmpAnd.bmWidthBytes,
2114 bmpAnd.bmPlanes, bmpAnd.bmBitsPixel);
2115
2116 if (iconinfo->hbmColor)
2117 {
2118 GetObjectW( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
2119 TRACE("color: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2120 bmpXor.bmWidth, bmpXor.bmHeight, bmpXor.bmWidthBytes,
2121 bmpXor.bmPlanes, bmpXor.bmBitsPixel);
2122
2123 width = bmpXor.bmWidth;
2124 height = bmpXor.bmHeight;
2125 if (bmpXor.bmPlanes * bmpXor.bmBitsPixel != 1 || bmpAnd.bmPlanes * bmpAnd.bmBitsPixel != 1)
2126 {
2127 color = CreateCompatibleBitmap( screen_dc, width, height );
2128 mask = CreateBitmap( width, height, 1, 1, NULL );
2129 }
2130 else mask = CreateBitmap( width, height * 2, 1, 1, NULL );
2131 }
2132 else
2133 {
2134 width = bmpAnd.bmWidth;
2135 height = bmpAnd.bmHeight;
2136 mask = CreateBitmap( width, height, 1, 1, NULL );
2137 }
2138
2139 hdc = CreateCompatibleDC( 0 );
2140 SelectObject( hdc, mask );
2141 stretch_blt_icon( hdc, 0, 0, width, height, iconinfo->hbmMask, bmpAnd.bmWidth, bmpAnd.bmHeight );
2142
2143 if (color)
2144 {
2145 SelectObject( hdc, color );
2146 stretch_blt_icon( hdc, 0, 0, width, height, iconinfo->hbmColor, width, height );
2147 }
2148 else if (iconinfo->hbmColor)
2149 {
2150 stretch_blt_icon( hdc, 0, height, width, height, iconinfo->hbmColor, width, height );
2151 }
2152 else height /= 2;
2153
2154 DeleteDC( hdc );
2155
2156 hObj = alloc_icon_handle( FALSE, 1 );
2157 if (hObj)
2158 {
2159 struct cursoricon_object *info = get_icon_ptr( hObj );
2160 struct cursoricon_frame *frame;
2161
2162 info->is_icon = iconinfo->fIcon;
2163 frame = get_icon_frame( info, 0 );
2164 frame->delay = ~0;
2165 frame->width = width;
2166 frame->height = height;
2167 frame->color = color;
2168 frame->mask = mask;
2169 frame->alpha = create_alpha_bitmap( iconinfo->hbmColor, mask, NULL, NULL );
2170 release_icon_frame( info, 0, frame );
2171 if (info->is_icon)
2172 {
2173 info->hotspot.x = width / 2;
2174 info->hotspot.y = height / 2;
2175 }
2176 else
2177 {
2178 info->hotspot.x = iconinfo->xHotspot;
2179 info->hotspot.y = iconinfo->yHotspot;
2180 }
2181
2182 release_icon_ptr( hObj, info );
2183 USER_Driver->pCreateCursorIcon( hObj );
2184 }
2185 return hObj;
2186 }
2187
2188 /******************************************************************************
2189 * DrawIconEx (USER32.@) Draws an icon or cursor on device context
2190 *
2191 * NOTES
2192 * Why is this using SM_CXICON instead of SM_CXCURSOR?
2193 *
2194 * PARAMS
2195 * hdc [I] Handle to device context
2196 * x0 [I] X coordinate of upper left corner
2197 * y0 [I] Y coordinate of upper left corner
2198 * hIcon [I] Handle to icon to draw
2199 * cxWidth [I] Width of icon
2200 * cyWidth [I] Height of icon
2201 * istep [I] Index of frame in animated cursor
2202 * hbr [I] Handle to background brush
2203 * flags [I] Icon-drawing flags
2204 *
2205 * RETURNS
2206 * Success: TRUE
2207 * Failure: FALSE
2208 */
2209 BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
2210 INT cxWidth, INT cyWidth, UINT istep,
2211 HBRUSH hbr, UINT flags )
2212 {
2213 struct cursoricon_frame *frame;
2214 struct cursoricon_object *ptr;
2215 HDC hdc_dest, hMemDC;
2216 BOOL result = FALSE, DoOffscreen;
2217 HBITMAP hB_off = 0;
2218 COLORREF oldFg, oldBg;
2219 INT x, y, nStretchMode;
2220
2221 TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
2222 hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
2223
2224 if (!(ptr = get_icon_ptr( hIcon ))) return FALSE;
2225 if (istep >= get_icon_steps( ptr ))
2226 {
2227 TRACE_(icon)("Stepped past end of animated frames=%d\n", istep);
2228 release_icon_ptr( hIcon, ptr );
2229 return FALSE;
2230 }
2231 if (!(frame = get_icon_frame( ptr, istep )))
2232 {
2233 FIXME_(icon)("Error retrieving icon frame %d\n", istep);
2234 release_icon_ptr( hIcon, ptr );
2235 return FALSE;
2236 }
2237 if (!(hMemDC = CreateCompatibleDC( hdc )))
2238 {
2239 release_icon_frame( ptr, istep, frame );
2240 release_icon_ptr( hIcon, ptr );
2241 return FALSE;
2242 }
2243
2244 if (flags & DI_NOMIRROR)
2245 FIXME_(icon)("Ignoring flag DI_NOMIRROR\n");
2246
2247 /* Calculate the size of the destination image. */
2248 if (cxWidth == 0)
2249 {
2250 if (flags & DI_DEFAULTSIZE)
2251 cxWidth = GetSystemMetrics (SM_CXICON);
2252 else
2253 cxWidth = frame->width;
2254 }
2255 if (cyWidth == 0)
2256 {
2257 if (flags & DI_DEFAULTSIZE)
2258 cyWidth = GetSystemMetrics (SM_CYICON);
2259 else
2260 cyWidth = frame->height;
2261 }
2262
2263 DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
2264
2265 if (DoOffscreen) {
2266 RECT r;
2267
2268 r.left = 0;
2269 r.top = 0;
2270 r.right = cxWidth;
2271 r.bottom = cxWidth;
2272
2273 if (!(hdc_dest = CreateCompatibleDC(hdc))) goto failed;
2274 if (!(hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth)))
2275 {
2276 DeleteDC( hdc_dest );
2277 goto failed;
2278 }
2279 SelectObject(hdc_dest, hB_off);
2280 FillRect(hdc_dest, &r, hbr);
2281 x = y = 0;
2282 }
2283 else
2284 {
2285 hdc_dest = hdc;
2286 x = x0;
2287 y = y0;
2288 }
2289
2290 nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
2291
2292 oldFg = SetTextColor( hdc, RGB(0,0,0) );
2293 oldBg = SetBkColor( hdc, RGB(255,255,255) );
2294
2295 if (frame->alpha && (flags & DI_IMAGE))
2296 {
2297 BOOL alpha_blend = TRUE;
2298
2299 if (GetObjectType( hdc_dest ) == OBJ_MEMDC)
2300 {
2301 BITMAP bm;
2302 HBITMAP bmp = GetCurrentObject( hdc_dest, OBJ_BITMAP );
2303 alpha_blend = GetObjectW( bmp, sizeof(bm), &bm ) && bm.bmBitsPixel > 8;
2304 }
2305 if (alpha_blend)
2306 {
2307 BLENDFUNCTION pixelblend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
2308 SelectObject( hMemDC, frame->alpha );
2309 if (GdiAlphaBlend( hdc_dest, x, y, cxWidth, cyWidth, hMemDC,
2310 0, 0, frame->width, frame->height,
2311 pixelblend )) goto done;
2312 }
2313 }
2314
2315 if (flags & DI_MASK)
2316 {
2317 DWORD rop = (flags & DI_IMAGE) ? SRCAND : SRCCOPY;
2318 SelectObject( hMemDC, frame->mask );
2319 StretchBlt( hdc_dest, x, y, cxWidth, cyWidth,
2320 hMemDC, 0, 0, frame->width, frame->height, rop );
2321 }
2322
2323 if (flags & DI_IMAGE)
2324 {
2325 if (frame->color)
2326 {
2327 DWORD rop = (flags & DI_MASK) ? SRCINVERT : SRCCOPY;
2328 SelectObject( hMemDC, frame->color );
2329 StretchBlt( hdc_dest, x, y, cxWidth, cyWidth,
2330 hMemDC, 0, 0, frame->width, frame->height, rop );
2331 }
2332 else
2333 {
2334 DWORD rop = (flags & DI_MASK) ? SRCINVERT : SRCCOPY;
2335 SelectObject( hMemDC, frame->mask );
2336 StretchBlt( hdc_dest, x, y, cxWidth, cyWidth,
2337 hMemDC, 0, frame->height, frame->width,
2338 frame->height, rop );
2339 }
2340 }
2341
2342 done:
2343 if (DoOffscreen) BitBlt( hdc, x0, y0, cxWidth, cyWidth, hdc_dest, 0, 0, SRCCOPY );
2344
2345 SetTextColor( hdc, oldFg );
2346 SetBkColor( hdc, oldBg );
2347 SetStretchBltMode (hdc, nStretchMode);
2348 result = TRUE;
2349 if (hdc_dest != hdc) DeleteDC( hdc_dest );
2350 if (hB_off) DeleteObject(hB_off);
2351 failed:
2352 DeleteDC( hMemDC );
2353 release_icon_frame( ptr, istep, frame );
2354 release_icon_ptr( hIcon, ptr );
2355 return result;
2356 }
2357
2358 /***********************************************************************
2359 * DIB_FixColorsToLoadflags
2360 *
2361 * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
2362 * are in loadflags
2363 */
2364 static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
2365 {
2366 int colors;
2367 COLORREF c_W, c_S, c_F, c_L, c_C;
2368 int incr,i;
2369 RGBQUAD *ptr;
2370 int bitmap_type;
2371 LONG width;
2372 LONG height;
2373 WORD bpp;
2374 DWORD compr;
2375
2376 if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
2377 {
2378 WARN_(resource)("Invalid bitmap\n");
2379 return;
2380 }
2381
2382 if (bpp > 8) return;
2383
2384 if (bitmap_type == 0) /* BITMAPCOREHEADER */
2385 {
2386 incr = 3;
2387 colors = 1 << bpp;
2388 }
2389 else
2390 {
2391 incr = 4;
2392 colors = bmi->bmiHeader.biClrUsed;
2393 if (colors > 256) colors = 256;
2394 if (!colors && (bpp <= 8)) colors = 1 << bpp;
2395 }
2396
2397 c_W = GetSysColor(COLOR_WINDOW);
2398 c_S = GetSysColor(COLOR_3DSHADOW);
2399 c_F = GetSysColor(COLOR_3DFACE);
2400 c_L = GetSysColor(COLOR_3DLIGHT);
2401
2402 if (loadflags & LR_LOADTRANSPARENT) {
2403 switch (bpp) {
2404 case 1: pix = pix >> 7; break;
2405 case 4: pix = pix >> 4; break;
2406 case 8: break;
2407 default:
2408 WARN_(resource)("(%d): Unsupported depth\n", bpp);
2409 return;
2410 }
2411 if (pix >= colors) {
2412 WARN_(resource)("pixel has color index greater than biClrUsed!\n");
2413 return;
2414 }
2415 if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
2416 ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
2417 ptr->rgbBlue = GetBValue(c_W);
2418 ptr->rgbGreen = GetGValue(c_W);
2419 ptr->rgbRed = GetRValue(c_W);
2420 }
2421 if (loadflags & LR_LOADMAP3DCOLORS)
2422 for (i=0; i<colors; i++) {
2423 ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
2424 c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
2425 if (c_C == RGB(128, 128, 128)) {
2426 ptr->rgbRed = GetRValue(c_S);
2427 ptr->rgbGreen = GetGValue(c_S);
2428 ptr->rgbBlue = GetBValue(c_S);
2429 } else if (c_C == RGB(192, 192, 192)) {
2430 ptr->rgbRed = GetRValue(c_F);
2431 ptr->rgbGreen = GetGValue(c_F);
2432 ptr->rgbBlue = GetBValue(c_F);
2433 } else if (c_C == RGB(223, 223, 223)) {
2434 ptr->rgbRed = GetRValue(c_L);
2435 ptr->rgbGreen = GetGValue(c_L);
2436 ptr->rgbBlue = GetBValue(c_L);
2437 }
2438 }
2439 }
2440
2441
2442 /**********************************************************************
2443 * BITMAP_Load
2444 */
2445 static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
2446 INT desiredx, INT desiredy, UINT loadflags )
2447 {
2448 HBITMAP hbitmap = 0, orig_bm;
2449 HRSRC hRsrc;
2450 HGLOBAL handle;
2451 char *ptr = NULL;
2452 BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL;
2453 int size;
2454 BYTE pix;
2455 char *bits;
2456 LONG width, height, new_width, new_height;
2457 WORD bpp_dummy;
2458 DWORD compr_dummy, offbits = 0;
2459 INT bm_type;
2460 HDC screen_mem_dc = NULL;
2461
2462 if (!(loadflags & LR_LOADFROMFILE))
2463 {
2464 if (!instance)
2465 {
2466 /* OEM bitmap: try to load the resource from user32.dll */
2467 instance = user32_module;
2468 }
2469
2470 if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
2471 if (!(handle = LoadResource( instance, hRsrc ))) return 0;
2472
2473 if ((info = LockResource( handle )) == NULL) return 0;
2474 }
2475 else
2476 {
2477 BITMAPFILEHEADER * bmfh;
2478
2479 if (!(ptr = map_fileW( name, NULL ))) return 0;
2480 info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
2481 bmfh = (BITMAPFILEHEADER *)ptr;
2482 if (bmfh->bfType != 0x4d42 /* 'BM' */)
2483 {
2484 WARN("Invalid/unsupported bitmap format!\n");
2485 goto end;
2486 }
2487 if (bmfh->bfOffBits) offbits = bmfh->bfOffBits - sizeof(BITMAPFILEHEADER);
2488 }
2489
2490 bm_type = DIB_GetBitmapInfo( &info->bmiHeader, &width, &height,
2491 &bpp_dummy, &compr_dummy);
2492 if (bm_type == -1)
2493 {
2494 WARN("Invalid bitmap format!\n");
2495 goto end;
2496 }
2497
2498 size = bitmap_info_size(info, DIB_RGB_COLORS);
2499 fix_info = HeapAlloc(GetProcessHeap(), 0, size);
2500 scaled_info = HeapAlloc(GetProcessHeap(), 0, size);
2501
2502 if (!fix_info || !scaled_info) goto end;
2503 memcpy(fix_info, info, size);
2504
2505 pix = *((LPBYTE)info + size);
2506 DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
2507
2508 memcpy(scaled_info, fix_info, size);
2509
2510 if(desiredx != 0)
2511 new_width = desiredx;
2512 else
2513 new_width = width;
2514
2515 if(desiredy != 0)
2516 new_height = height > 0 ? desiredy : -desiredy;
2517 else
2518 new_height = height;
2519
2520 if(bm_type == 0)
2521 {
2522 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader;
2523 core->bcWidth = new_width;
2524 core->bcHeight = new_height;
2525 }
2526 else
2527 {
2528 /* Some sanity checks for BITMAPINFO (not applicable to BITMAPCOREINFO) */
2529 if (info->bmiHeader.biHeight > 65535 || info->bmiHeader.biWidth > 65535) {
2530 WARN("Broken BitmapInfoHeader!\n");
2531 goto end;
2532 }
2533
2534 scaled_info->bmiHeader.biWidth = new_width;
2535 scaled_info->bmiHeader.biHeight = new_height;
2536 }
2537
2538 if (new_height < 0) new_height = -new_height;
2539
2540 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2541 if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end;
2542
2543 bits = (char *)info + (offbits ? offbits : size);
2544
2545 if (loadflags & LR_CREATEDIBSECTION)
2546 {
2547 scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
2548 hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0);
2549 }
2550 else
2551 {
2552 if (is_dib_monochrome(fix_info))
2553 hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL);
2554 else
2555 hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height);
2556 }
2557
2558 orig_bm = SelectObject(screen_mem_dc, hbitmap);
2559 StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
2560 SelectObject(screen_mem_dc, orig_bm);
2561
2562 end:
2563 if (screen_mem_dc) DeleteDC(screen_mem_dc);
2564 HeapFree(GetProcessHeap(), 0, scaled_info);
2565 HeapFree(GetProcessHeap(), 0, fix_info);
2566 if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
2567
2568 return hbitmap;
2569 }
2570
2571 /**********************************************************************
2572 * LoadImageA (USER32.@)
2573 *
2574 * See LoadImageW.
2575 */
2576 HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
2577 INT desiredx, INT desiredy, UINT loadflags)
2578 {
2579 HANDLE res;
2580 LPWSTR u_name;
2581
2582 if (IS_INTRESOURCE(name))
2583 return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
2584
2585 __TRY {
2586 DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2587 u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
2588 MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
2589 }
2590 __EXCEPT_PAGE_FAULT {
2591 SetLastError( ERROR_INVALID_PARAMETER );
2592 return 0;
2593 }
2594 __ENDTRY
2595 res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
2596 HeapFree(GetProcessHeap(), 0, u_name);
2597 return res;
2598 }
2599
2600
2601 /******************************************************************************
2602 * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
2603 *
2604 * PARAMS
2605 * hinst [I] Handle of instance that contains image
2606 * name [I] Name of image
2607 * type [I] Type of image
2608 * desiredx [I] Desired width
2609 * desiredy [I] Desired height
2610 * loadflags [I] Load flags
2611 *
2612 * RETURNS
2613 * Success: Handle to newly loaded image
2614 * Failure: NULL
2615 *
2616 * FIXME: Implementation lacks some features, see LR_ defines in winuser.h
2617 */
2618 HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
2619 INT desiredx, INT desiredy, UINT loadflags )
2620 {
2621 TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n",
2622 hinst,debugstr_w(name),type,desiredx,desiredy,loadflags);
2623
2624 if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
2625 switch (type) {
2626 case IMAGE_BITMAP:
2627 return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags );
2628
2629 case IMAGE_ICON:
2630 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2631 if (screen_dc)
2632 {
2633 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2634 GetDeviceCaps(screen_dc, BITSPIXEL),
2635 FALSE, loadflags);
2636 }
2637 break;
2638
2639 case IMAGE_CURSOR:
2640 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2641 1, TRUE, loadflags);
2642 }
2643 return 0;
2644 }
2645
2646 /******************************************************************************
2647 * CopyImage (USER32.@) Creates new image and copies attributes to it
2648 *
2649 * PARAMS
2650 * hnd [I] Handle to image to copy
2651 * type [I] Type of image to copy
2652 * desiredx [I] Desired width of new image
2653 * desiredy [I] Desired height of new image
2654 * flags [I] Copy flags
2655 *
2656 * RETURNS
2657 * Success: Handle to newly created image
2658 * Failure: NULL
2659 *
2660 * BUGS
2661 * Only Windows NT 4.0 supports the LR_COPYRETURNORG flag for bitmaps,
2662 * all other versions (95/2000/XP have been tested) ignore it.
2663 *
2664 * NOTES
2665 * If LR_CREATEDIBSECTION is absent, the copy will be monochrome for
2666 * a monochrome source bitmap or if LR_MONOCHROME is present, otherwise
2667 * the copy will have the same depth as the screen.
2668 * The content of the image will only be copied if the bit depth of the
2669 * original image is compatible with the bit depth of the screen, or
2670 * if the source is a DIB section.
2671 * The LR_MONOCHROME flag is ignored if LR_CREATEDIBSECTION is present.
2672 */
2673 HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
2674 INT desiredy, UINT flags )
2675 {
2676 TRACE("hnd=%p, type=%u, desiredx=%d, desiredy=%d, flags=%x\n",
2677 hnd, type, desiredx, desiredy, flags);
2678
2679 switch (type)
2680 {
2681 case IMAGE_BITMAP:
2682 {
2683 HBITMAP res = NULL;
2684 DIBSECTION ds;
2685 int objSize;
2686 BITMAPINFO * bi;
2687
2688 objSize = GetObjectW( hnd, sizeof(ds), &ds );
2689 if (!objSize) return 0;
2690 if ((desiredx < 0) || (desiredy < 0)) return 0;
2691
2692 if (flags & LR_COPYFROMRESOURCE)
2693 {
2694 FIXME("The flag LR_COPYFROMRESOURCE is not implemented for bitmaps\n");
2695 }
2696
2697 if (desiredx == 0) desiredx = ds.dsBm.bmWidth;
2698 if (desiredy == 0) desiredy = ds.dsBm.bmHeight;
2699
2700 /* Allocate memory for a BITMAPINFOHEADER structure and a
2701 color table. The maximum number of colors in a color table
2702 is 256 which corresponds to a bitmap with depth 8.
2703 Bitmaps with higher depths don't have color tables. */
2704 bi = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
2705 if (!bi) return 0;
2706
2707 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2708 bi->bmiHeader.biPlanes = ds.dsBm.bmPlanes;
2709 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2710 bi->bmiHeader.biCompression = BI_RGB;
2711
2712 if (flags & LR_CREATEDIBSECTION)
2713 {
2714 /* Create a DIB section. LR_MONOCHROME is ignored */
2715 void * bits;
2716 HDC dc = CreateCompatibleDC(NULL);
2717
2718 if (objSize == sizeof(DIBSECTION))
2719 {
2720 /* The source bitmap is a DIB.
2721 Get its attributes to create an exact copy */
2722 memcpy(bi, &ds.dsBmih, sizeof(BITMAPINFOHEADER));
2723 }
2724
2725 bi->bmiHeader.biWidth = desiredx;
2726 bi->bmiHeader.biHeight = desiredy;
2727
2728 /* Get the color table or the color masks */
2729 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2730
2731 res = CreateDIBSection(dc, bi, DIB_RGB_COLORS, &bits, NULL, 0);
2732 DeleteDC(dc);
2733 }
2734 else
2735 {
2736 /* Create a device-dependent bitmap */
2737
2738 BOOL monochrome = (flags & LR_MONOCHROME);
2739
2740 if (objSize == sizeof(DIBSECTION))
2741 {
2742 /* The source bitmap is a DIB section.
2743 Get its attributes */
2744 HDC dc = CreateCompatibleDC(NULL);
2745 bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
2746 bi->bmiHeader.biHeight = ds.dsBm.bmHeight;
2747 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2748 DeleteDC(dc);
2749
2750 if (!monochrome && ds.dsBm.bmBitsPixel == 1)
2751 {
2752 /* Look if the colors of the DIB are black and white */
2753
2754 monochrome =
2755 (bi->bmiColors[0].rgbRed == 0xff
2756 && bi->bmiColors[0].rgbGreen == 0xff
2757 && bi->bmiColors[0].rgbBlue == 0xff
2758 && bi->bmiColors[0].rgbReserved == 0
2759 && bi->bmiColors[1].rgbRed == 0
2760 && bi->bmiColors[1].rgbGreen == 0
2761 && bi->bmiColors[1].rgbBlue == 0
2762 && bi->bmiColors[1].rgbReserved == 0)
2763 ||
2764 (bi->bmiColors[0].rgbRed == 0
2765 && bi->bmiColors[0].rgbGreen == 0
2766 && bi->bmiColors[0].rgbBlue == 0
2767 && bi->bmiColors[0].rgbReserved == 0
2768 && bi->bmiColors[1].rgbRed == 0xff
2769 && bi->bmiColors[1].rgbGreen == 0xff
2770 && bi->bmiColors[1].rgbBlue == 0xff
2771 && bi->bmiColors[1].rgbReserved == 0);
2772 }
2773 }
2774 else if (!monochrome)
2775 {
2776 monochrome = ds.dsBm.bmBitsPixel == 1;
2777 }
2778
2779 if (monochrome)
2780 {
2781 res = CreateBitmap(desiredx, desiredy, 1, 1, NULL);
2782 }
2783 else
2784 {
2785 HDC screenDC = GetDC(NULL);
2786 res = CreateCompatibleBitmap(screenDC, desiredx, desiredy);
2787 ReleaseDC(NULL, screenDC);
2788 }
2789 }
2790
2791 if (res)
2792 {
2793 /* Only copy the bitmap if it's a DIB section or if it's
2794 compatible to the screen */
2795 BOOL copyContents;
2796
2797 if (objSize == sizeof(DIBSECTION))
2798 {
2799 copyContents = TRUE;
2800 }
2801 else
2802 {
2803 HDC screenDC = GetDC(NULL);
2804 int screen_depth = GetDeviceCaps(screenDC, BITSPIXEL);
2805 ReleaseDC(NULL, screenDC);
2806
2807 copyContents = (ds.dsBm.bmBitsPixel == 1 || ds.dsBm.bmBitsPixel == screen_depth);
2808 }
2809
2810 if (copyContents)
2811 {
2812 /* The source bitmap may already be selected in a device context,
2813 use GetDIBits/StretchDIBits and not StretchBlt */
2814
2815 HDC dc;
2816 void * bits;
2817
2818 dc = CreateCompatibleDC(NULL);
2819
2820 bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
2821 bi->bmiHeader.biHeight = ds.dsBm.bmHeight;
2822 bi->bmiHeader.biSizeImage = 0;
2823 bi->bmiHeader.biClrUsed = 0;
2824 bi->bmiHeader.biClrImportant = 0;
2825
2826 /* Fill in biSizeImage */
2827 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2828 bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, bi->bmiHeader.biSizeImage);
2829
2830 if (bits)
2831 {
2832 HBITMAP oldBmp;
2833
2834 /* Get the image bits of the source bitmap */
2835 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, bits, bi, DIB_RGB_COLORS);
2836
2837 /* Copy it to the destination bitmap */
2838 oldBmp = SelectObject(dc, res);
2839 StretchDIBits(dc, 0, 0, desiredx, desiredy,
2840 0, 0, ds.dsBm.bmWidth, ds.dsBm.bmHeight,
2841 bits, bi, DIB_RGB_COLORS, SRCCOPY);
2842 SelectObject(dc, oldBmp);
2843
2844 HeapFree(GetProcessHeap(), 0, bits);
2845 }
2846
2847 DeleteDC(dc);
2848 }
2849
2850 if (flags & LR_COPYDELETEORG)
2851 {
2852 DeleteObject(hnd);
2853 }
2854 }
2855 HeapFree(GetProcessHeap(), 0, bi);
2856 return res;
2857 }
2858 case IMAGE_ICON:
2859 case IMAGE_CURSOR:
2860 {
2861 struct cursoricon_object *icon;
2862 HICON res = 0;
2863 int depth = (flags & LR_MONOCHROME) ? 1 : GetDeviceCaps( screen_dc, BITSPIXEL );
2864
2865 if (flags & LR_DEFAULTSIZE)
2866 {
2867 if (!desiredx) desiredx = GetSystemMetrics( type == IMAGE_ICON ? SM_CXICON : SM_CXCURSOR );
2868 if (!desiredy) desiredy = GetSystemMetrics( type == IMAGE_ICON ? SM_CYICON : SM_CYCURSOR );
2869 }
2870
2871 if (!(icon = get_icon_ptr( hnd ))) return 0;
2872
2873 if (icon->rsrc && (flags & LR_COPYFROMRESOURCE))
2874 res = CURSORICON_Load( icon->module, icon->resname, desiredx, desiredy, depth,
2875 type == IMAGE_CURSOR, flags );
2876 else
2877 res = CopyIcon( hnd ); /* FIXME: change size if necessary */
2878 release_icon_ptr( hnd, icon );
2879
2880 if (res && (flags & LR_COPYDELETEORG)) DeleteObject( hnd );
2881 return res;
2882 }
2883 }
2884 return 0;
2885 }
2886
2887
2888 /******************************************************************************
2889 * LoadBitmapW (USER32.@) Loads bitmap from the executable file
2890 *
2891 * RETURNS
2892 * Success: Handle to specified bitmap
2893 * Failure: NULL
2894 */
2895 HBITMAP WINAPI LoadBitmapW(
2896 HINSTANCE instance, /* [in] Handle to application instance */
2897 LPCWSTR name) /* [in] Address of bitmap resource name */
2898 {
2899 return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2900 }
2901
2902 /**********************************************************************
2903 * LoadBitmapA (USER32.@)
2904 *
2905 * See LoadBitmapW.
2906 */
2907 HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
2908 {
2909 return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2910 }
Maarten's multimedia branch