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wined3d: Don't allow blits with an invalid destination rectangle when a clipper is...
[wine.git] / dlls / user32 / cursoricon.c
blob4c7658d8dc4d73ef1c7ce66b6fa4eb04d25c78ef
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_width_bytes
320 *
321 * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
322 */
323 static int get_dib_width_bytes( int width, int depth )
324 {
325 int words;
326
327 switch(depth)
328 {
329 case 1: words = (width + 31) / 32; break;
330 case 4: words = (width + 7) / 8; break;
331 case 8: words = (width + 3) / 4; break;
332 case 15:
333 case 16: words = (width + 1) / 2; break;
334 case 24: words = (width * 3 + 3)/4; break;
335 default:
336 WARN("(%d): Unsupported depth\n", depth );
337 /* fall through */
338 case 32:
339 words = width;
340 }
341 return 4 * words;
342 }
343
344
345 /***********************************************************************
346 * bitmap_info_size
347 *
348 * Return the size of the bitmap info structure including color table.
349 */
350 static int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
351 {
352 unsigned int colors, size, masks = 0;
353
354 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
355 {
356 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
357 colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
358 return sizeof(BITMAPCOREHEADER) + colors *
359 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
360 }
361 else /* assume BITMAPINFOHEADER */
362 {
363 colors = info->bmiHeader.biClrUsed;
364 if (colors > 256) /* buffer overflow otherwise */
365 colors = 256;
366 if (!colors && (info->bmiHeader.biBitCount <= 8))
367 colors = 1 << info->bmiHeader.biBitCount;
368 if (info->bmiHeader.biCompression == BI_BITFIELDS) masks = 3;
369 size = max( info->bmiHeader.biSize, sizeof(BITMAPINFOHEADER) + masks * sizeof(DWORD) );
370 return size + colors * ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
371 }
372 }
373
374
375 /***********************************************************************
376 * copy_bitmap
377 *
378 * Helper function to duplicate a bitmap.
379 */
380 static HBITMAP copy_bitmap( HBITMAP bitmap )
381 {
382 HDC src, dst = 0;
383 HBITMAP new_bitmap = 0;
384 BITMAP bmp;
385
386 if (!bitmap) return 0;
387 if (!GetObjectW( bitmap, sizeof(bmp), &bmp )) return 0;
388
389 if ((src = CreateCompatibleDC( 0 )) && (dst = CreateCompatibleDC( 0 )))
390 {
391 SelectObject( src, bitmap );
392 if ((new_bitmap = CreateCompatibleBitmap( src, bmp.bmWidth, bmp.bmHeight )))
393 {
394 SelectObject( dst, new_bitmap );
395 BitBlt( dst, 0, 0, bmp.bmWidth, bmp.bmHeight, src, 0, 0, SRCCOPY );
396 }
397 }
398 DeleteDC( dst );
399 DeleteDC( src );
400 return new_bitmap;
401 }
402
403
404 /***********************************************************************
405 * is_dib_monochrome
406 *
407 * Returns whether a DIB can be converted to a monochrome DDB.
408 *
409 * A DIB can be converted if its color table contains only black and
410 * white. Black must be the first color in the color table.
411 *
412 * Note : If the first color in the color table is white followed by
413 * black, we can't convert it to a monochrome DDB with
414 * SetDIBits, because black and white would be inverted.
415 */
416 static BOOL is_dib_monochrome( const BITMAPINFO* info )
417 {
418 if (info->bmiHeader.biBitCount != 1) return FALSE;
419
420 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
421 {
422 const RGBTRIPLE *rgb = ((const BITMAPCOREINFO*)info)->bmciColors;
423
424 /* Check if the first color is black */
425 if ((rgb->rgbtRed == 0) && (rgb->rgbtGreen == 0) && (rgb->rgbtBlue == 0))
426 {
427 rgb++;
428
429 /* Check if the second color is white */
430 return ((rgb->rgbtRed == 0xff) && (rgb->rgbtGreen == 0xff)
431 && (rgb->rgbtBlue == 0xff));
432 }
433 else return FALSE;
434 }
435 else /* assume BITMAPINFOHEADER */
436 {
437 const RGBQUAD *rgb = info->bmiColors;
438
439 /* Check if the first color is black */
440 if ((rgb->rgbRed == 0) && (rgb->rgbGreen == 0) &&
441 (rgb->rgbBlue == 0) && (rgb->rgbReserved == 0))
442 {
443 rgb++;
444
445 /* Check if the second color is white */
446 return ((rgb->rgbRed == 0xff) && (rgb->rgbGreen == 0xff)
447 && (rgb->rgbBlue == 0xff) && (rgb->rgbReserved == 0));
448 }
449 else return FALSE;
450 }
451 }
452
453 /***********************************************************************
454 * DIB_GetBitmapInfo
455 *
456 * Get the info from a bitmap header.
457 * Return 1 for INFOHEADER, 0 for COREHEADER, -1 in case of failure.
458 */
459 static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
460 LONG *height, WORD *bpp, DWORD *compr )
461 {
462 if (header->biSize == sizeof(BITMAPCOREHEADER))
463 {
464 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header;
465 *width = core->bcWidth;
466 *height = core->bcHeight;
467 *bpp = core->bcBitCount;
468 *compr = 0;
469 return 0;
470 }
471 else if (header->biSize == sizeof(BITMAPINFOHEADER) ||
472 header->biSize == sizeof(BITMAPV4HEADER) ||
473 header->biSize == sizeof(BITMAPV5HEADER))
474 {
475 *width = header->biWidth;
476 *height = header->biHeight;
477 *bpp = header->biBitCount;
478 *compr = header->biCompression;
479 return 1;
480 }
481 WARN("unknown/wrong size (%u) for header\n", header->biSize);
482 return -1;
483 }
484
485 /**********************************************************************
486 * get_icon_size
487 */
488 BOOL get_icon_size( HICON handle, SIZE *size )
489 {
490 struct cursoricon_object *info;
491 struct cursoricon_frame *frame;
492
493 if (!(info = get_icon_ptr( handle ))) return FALSE;
494 frame = get_icon_frame( info, 0 );
495 size->cx = frame->width;
496 size->cy = frame->height;
497 release_icon_frame( info, 0, frame);
498 release_icon_ptr( handle, info );
499 return TRUE;
500 }
501
502 /*
503 * The following macro functions account for the irregularities of
504 * accessing cursor and icon resources in files and resource entries.
505 */
506 typedef BOOL (*fnGetCIEntry)( LPCVOID dir, int n,
507 int *width, int *height, int *bits );
508
509 /**********************************************************************
510 * CURSORICON_FindBestIcon
511 *
512 * Find the icon closest to the requested size and bit depth.
513 */
514 static int CURSORICON_FindBestIcon( LPCVOID dir, fnGetCIEntry get_entry,
515 int width, int height, int depth, UINT loadflags )
516 {
517 int i, cx, cy, bits, bestEntry = -1;
518 UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
519 UINT iTempXDiff, iTempYDiff, iTempColorDiff;
520
521 /* Find Best Fit */
522 iTotalDiff = 0xFFFFFFFF;
523 iColorDiff = 0xFFFFFFFF;
524
525 if (loadflags & LR_DEFAULTSIZE)
526 {
527 if (!width) width = GetSystemMetrics( SM_CXICON );
528 if (!height) height = GetSystemMetrics( SM_CYICON );
529 }
530 else if (!width && !height)
531 {
532 /* use the size of the first entry */
533 if (!get_entry( dir, 0, &width, &height, &bits )) return -1;
534 iTotalDiff = 0;
535 }
536
537 for ( i = 0; iTotalDiff && get_entry( dir, i, &cx, &cy, &bits ); i++ )
538 {
539 iTempXDiff = abs(width - cx);
540 iTempYDiff = abs(height - cy);
541
542 if(iTotalDiff > (iTempXDiff + iTempYDiff))
543 {
544 iXDiff = iTempXDiff;
545 iYDiff = iTempYDiff;
546 iTotalDiff = iXDiff + iYDiff;
547 }
548 }
549
550 /* Find Best Colors for Best Fit */
551 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
552 {
553 if(abs(width - cx) == iXDiff && abs(height - cy) == iYDiff)
554 {
555 iTempColorDiff = abs(depth - bits);
556 if(iColorDiff > iTempColorDiff)
557 {
558 bestEntry = i;
559 iColorDiff = iTempColorDiff;
560 }
561 }
562 }
563
564 return bestEntry;
565 }
566
567 static BOOL CURSORICON_GetResIconEntry( LPCVOID dir, int n,
568 int *width, int *height, int *bits )
569 {
570 const CURSORICONDIR *resdir = dir;
571 const ICONRESDIR *icon;
572
573 if ( resdir->idCount <= n )
574 return FALSE;
575 icon = &resdir->idEntries[n].ResInfo.icon;
576 *width = icon->bWidth;
577 *height = icon->bHeight;
578 *bits = resdir->idEntries[n].wBitCount;
579 return TRUE;
580 }
581
582 /**********************************************************************
583 * CURSORICON_FindBestCursor
584 *
585 * Find the cursor closest to the requested size.
586 *
587 * FIXME: parameter 'color' ignored.
588 */
589 static int CURSORICON_FindBestCursor( LPCVOID dir, fnGetCIEntry get_entry,
590 int width, int height, int depth, UINT loadflags )
591 {
592 int i, maxwidth, maxheight, cx, cy, bits, bestEntry = -1;
593
594 if (loadflags & LR_DEFAULTSIZE)
595 {
596 if (!width) width = GetSystemMetrics( SM_CXCURSOR );
597 if (!height) height = GetSystemMetrics( SM_CYCURSOR );
598 }
599 else if (!width && !height)
600 {
601 /* use the first entry */
602 if (!get_entry( dir, 0, &width, &height, &bits )) return -1;
603 return 0;
604 }
605
606 /* Double height to account for AND and XOR masks */
607
608 height *= 2;
609
610 /* First find the largest one smaller than or equal to the requested size*/
611
612 maxwidth = maxheight = 0;
613 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
614 {
615 if ((cx <= width) && (cy <= height) &&
616 (cx > maxwidth) && (cy > maxheight))
617 {
618 bestEntry = i;
619 maxwidth = cx;
620 maxheight = cy;
621 }
622 }
623 if (bestEntry != -1) return bestEntry;
624
625 /* Now find the smallest one larger than the requested size */
626
627 maxwidth = maxheight = 255;
628 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
629 {
630 if (((cx < maxwidth) && (cy < maxheight)) || (bestEntry == -1))
631 {
632 bestEntry = i;
633 maxwidth = cx;
634 maxheight = cy;
635 }
636 }
637
638 return bestEntry;
639 }
640
641 static BOOL CURSORICON_GetResCursorEntry( LPCVOID dir, int n,
642 int *width, int *height, int *bits )
643 {
644 const CURSORICONDIR *resdir = dir;
645 const CURSORDIR *cursor;
646
647 if ( resdir->idCount <= n )
648 return FALSE;
649 cursor = &resdir->idEntries[n].ResInfo.cursor;
650 *width = cursor->wWidth;
651 *height = cursor->wHeight;
652 *bits = resdir->idEntries[n].wBitCount;
653 return TRUE;
654 }
655
656 static const CURSORICONDIRENTRY *CURSORICON_FindBestIconRes( const CURSORICONDIR * dir,
657 int width, int height, int depth,
658 UINT loadflags )
659 {
660 int n;
661
662 n = CURSORICON_FindBestIcon( dir, CURSORICON_GetResIconEntry,
663 width, height, depth, loadflags );
664 if ( n < 0 )
665 return NULL;
666 return &dir->idEntries[n];
667 }
668
669 static const CURSORICONDIRENTRY *CURSORICON_FindBestCursorRes( const CURSORICONDIR *dir,
670 int width, int height, int depth,
671 UINT loadflags )
672 {
673 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetResCursorEntry,
674 width, height, depth, loadflags );
675 if ( n < 0 )
676 return NULL;
677 return &dir->idEntries[n];
678 }
679
680 static BOOL CURSORICON_GetFileEntry( LPCVOID dir, int n,
681 int *width, int *height, int *bits )
682 {
683 const CURSORICONFILEDIR *filedir = dir;
684 const CURSORICONFILEDIRENTRY *entry;
685 const BITMAPINFOHEADER *info;
686
687 if ( filedir->idCount <= n )
688 return FALSE;
689 entry = &filedir->idEntries[n];
690 /* FIXME: check against file size */
691 info = (const BITMAPINFOHEADER *)((const char *)dir + entry->dwDIBOffset);
692 *width = entry->bWidth;
693 *height = entry->bHeight;
694 *bits = info->biBitCount;
695 return TRUE;
696 }
697
698 static const CURSORICONFILEDIRENTRY *CURSORICON_FindBestCursorFile( const CURSORICONFILEDIR *dir,
699 int width, int height, int depth,
700 UINT loadflags )
701 {
702 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetFileEntry,
703 width, height, depth, loadflags );
704 if ( n < 0 )
705 return NULL;
706 return &dir->idEntries[n];
707 }
708
709 static const CURSORICONFILEDIRENTRY *CURSORICON_FindBestIconFile( const CURSORICONFILEDIR *dir,
710 int width, int height, int depth,
711 UINT loadflags )
712 {
713 int n = CURSORICON_FindBestIcon( dir, CURSORICON_GetFileEntry,
714 width, height, depth, loadflags );
715 if ( n < 0 )
716 return NULL;
717 return &dir->idEntries[n];
718 }
719
720 /***********************************************************************
721 * bmi_has_alpha
722 */
723 static BOOL bmi_has_alpha( const BITMAPINFO *info, const void *bits )
724 {
725 int i;
726 BOOL has_alpha = FALSE;
727 const unsigned char *ptr = bits;
728
729 if (info->bmiHeader.biBitCount != 32) return FALSE;
730 for (i = 0; i < info->bmiHeader.biWidth * abs(info->bmiHeader.biHeight); i++, ptr += 4)
731 if ((has_alpha = (ptr[3] != 0))) break;
732 return has_alpha;
733 }
734
735 /***********************************************************************
736 * create_alpha_bitmap
737 *
738 * Create the alpha bitmap for a 32-bpp icon that has an alpha channel.
739 */
740 static HBITMAP create_alpha_bitmap( HBITMAP color, HBITMAP mask,
741 const BITMAPINFO *src_info, const void *color_bits )
742 {
743 HBITMAP alpha = 0;
744 BITMAPINFO *info = NULL;
745 BITMAP bm;
746 HDC hdc;
747 void *bits;
748 unsigned char *ptr;
749 int i;
750
751 if (!GetObjectW( color, sizeof(bm), &bm )) return 0;
752 if (bm.bmBitsPixel != 32) return 0;
753
754 if (!(hdc = CreateCompatibleDC( 0 ))) return 0;
755 if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) goto done;
756 info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
757 info->bmiHeader.biWidth = bm.bmWidth;
758 info->bmiHeader.biHeight = -bm.bmHeight;
759 info->bmiHeader.biPlanes = 1;
760 info->bmiHeader.biBitCount = 32;
761 info->bmiHeader.biCompression = BI_RGB;
762 info->bmiHeader.biSizeImage = bm.bmWidth * bm.bmHeight * 4;
763 info->bmiHeader.biXPelsPerMeter = 0;
764 info->bmiHeader.biYPelsPerMeter = 0;
765 info->bmiHeader.biClrUsed = 0;
766 info->bmiHeader.biClrImportant = 0;
767 if (!(alpha = CreateDIBSection( hdc, info, DIB_RGB_COLORS, &bits, NULL, 0 ))) goto done;
768
769 if (src_info)
770 {
771 SelectObject( hdc, alpha );
772 StretchDIBits( hdc, 0, 0, bm.bmWidth, bm.bmHeight,
773 0, 0, src_info->bmiHeader.biWidth, src_info->bmiHeader.biHeight,
774 color_bits, src_info, DIB_RGB_COLORS, SRCCOPY );
775
776 }
777 else
778 {
779 GetDIBits( hdc, color, 0, bm.bmHeight, bits, info, DIB_RGB_COLORS );
780 if (!bmi_has_alpha( info, bits ))
781 {
782 DeleteObject( alpha );
783 alpha = 0;
784 goto done;
785 }
786 }
787
788 /* pre-multiply by alpha */
789 for (i = 0, ptr = bits; i < bm.bmWidth * bm.bmHeight; i++, ptr += 4)
790 {
791 unsigned int alpha = ptr[3];
792 ptr[0] = ptr[0] * alpha / 255;
793 ptr[1] = ptr[1] * alpha / 255;
794 ptr[2] = ptr[2] * alpha / 255;
795 }
796
797 done:
798 DeleteDC( hdc );
799 HeapFree( GetProcessHeap(), 0, info );
800 return alpha;
801 }
802
803
804 /***********************************************************************
805 * create_icon_from_bmi
806 *
807 * Create an icon from its BITMAPINFO.
808 */
809 static HICON create_icon_from_bmi( BITMAPINFO *bmi, HMODULE module, LPCWSTR resname, HRSRC rsrc,
810 POINT hotspot, BOOL bIcon, INT width, INT height, UINT cFlag )
811 {
812 unsigned int size = bitmap_info_size( bmi, DIB_RGB_COLORS );
813 BOOL monochrome = is_dib_monochrome( bmi );
814 HBITMAP color = 0, mask = 0, alpha = 0;
815 const void *color_bits, *mask_bits;
816 BITMAPINFO *bmi_copy;
817 BOOL ret = FALSE;
818 BOOL do_stretch;
819 HICON hObj = 0;
820 HDC hdc = 0;
821
822 /* Check bitmap header */
823
824 if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) &&
825 (bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) ||
826 bmi->bmiHeader.biCompression != BI_RGB) )
827 {
828 WARN_(cursor)("\tinvalid resource bitmap header.\n");
829 return 0;
830 }
831
832 if (cFlag & LR_DEFAULTSIZE)
833 {
834 if (!width) width = GetSystemMetrics( bIcon ? SM_CXICON : SM_CXCURSOR );
835 if (!height) height = GetSystemMetrics( bIcon ? SM_CYICON : SM_CYCURSOR );
836 }
837 else
838 {
839 if (!width) width = bmi->bmiHeader.biWidth;
840 if (!height) height = bmi->bmiHeader.biHeight/2;
841 }
842 do_stretch = (bmi->bmiHeader.biHeight/2 != height) ||
843 (bmi->bmiHeader.biWidth != width);
844
845 /* Scale the hotspot */
846 if (bIcon)
847 {
848 hotspot.x = width / 2;
849 hotspot.y = height / 2;
850 }
851 else if (do_stretch)
852 {
853 hotspot.x = (hotspot.x * width) / bmi->bmiHeader.biWidth;
854 hotspot.y = (hotspot.y * height) / (bmi->bmiHeader.biHeight / 2);
855 }
856
857 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
858 if (!screen_dc) return 0;
859
860 if (!(bmi_copy = HeapAlloc( GetProcessHeap(), 0, max( size, FIELD_OFFSET( BITMAPINFO, bmiColors[2] )))))
861 return 0;
862 if (!(hdc = CreateCompatibleDC( 0 ))) goto done;
863
864 memcpy( bmi_copy, bmi, size );
865 bmi_copy->bmiHeader.biHeight /= 2;
866
867 color_bits = (const char*)bmi + size;
868 mask_bits = (const char*)color_bits +
869 get_dib_width_bytes( bmi->bmiHeader.biWidth,
870 bmi->bmiHeader.biBitCount ) * abs(bmi_copy->bmiHeader.biHeight);
871
872 alpha = 0;
873 if (monochrome)
874 {
875 if (!(mask = CreateBitmap( width, height * 2, 1, 1, NULL ))) goto done;
876 color = 0;
877
878 /* copy color data into second half of mask bitmap */
879 SelectObject( hdc, mask );
880 StretchDIBits( hdc, 0, height, width, height,
881 0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
882 color_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
883 }
884 else
885 {
886 if (!(mask = CreateBitmap( width, height, 1, 1, NULL ))) goto done;
887 if (!(color = CreateBitmap( width, height, GetDeviceCaps( screen_dc, PLANES ),
888 GetDeviceCaps( screen_dc, BITSPIXEL ), NULL )))
889 {
890 DeleteObject( mask );
891 goto done;
892 }
893 SelectObject( hdc, color );
894 StretchDIBits( hdc, 0, 0, width, height,
895 0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
896 color_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
897
898 if (bmi_has_alpha( bmi_copy, color_bits ))
899 alpha = create_alpha_bitmap( color, mask, bmi_copy, color_bits );
900
901 /* convert info to monochrome to copy the mask */
902 bmi_copy->bmiHeader.biBitCount = 1;
903 if (bmi_copy->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
904 {
905 RGBQUAD *rgb = bmi_copy->bmiColors;
906
907 bmi_copy->bmiHeader.biClrUsed = bmi_copy->bmiHeader.biClrImportant = 2;
908 rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
909 rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
910 rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
911 }
912 else
913 {
914 RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)bmi_copy) + 1);
915
916 rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
917 rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
918 }
919 }
920
921 SelectObject( hdc, mask );
922 StretchDIBits( hdc, 0, 0, width, height,
923 0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
924 mask_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
925 ret = TRUE;
926
927 done:
928 DeleteDC( hdc );
929 HeapFree( GetProcessHeap(), 0, bmi_copy );
930
931 if (ret)
932 hObj = alloc_icon_handle( FALSE, 1 );
933 if (hObj)
934 {
935 struct cursoricon_object *info = get_icon_ptr( hObj );
936 struct cursoricon_frame *frame;
937
938 info->is_icon = bIcon;
939 info->module = module;
940 info->hotspot = hotspot;
941 frame = get_icon_frame( info, 0 );
942 frame->delay = ~0;
943 frame->width = width;
944 frame->height = height;
945 frame->color = color;
946 frame->mask = mask;
947 frame->alpha = alpha;
948 release_icon_frame( info, 0, frame );
949 if (!IS_INTRESOURCE(resname))
950 {
951 info->resname = HeapAlloc( GetProcessHeap(), 0, (strlenW(resname) + 1) * sizeof(WCHAR) );
952 if (info->resname) strcpyW( info->resname, resname );
953 }
954 else info->resname = MAKEINTRESOURCEW( LOWORD(resname) );
955
956 if (module && (cFlag & LR_SHARED))
957 {
958 info->rsrc = rsrc;
959 list_add_head( &icon_cache, &info->entry );
960 }
961 release_icon_ptr( hObj, info );
962 USER_Driver->pCreateCursorIcon( hObj );
963 }
964 else
965 {
966 DeleteObject( color );
967 DeleteObject( alpha );
968 DeleteObject( mask );
969 }
970 return hObj;
971 }
972
973
974 /**********************************************************************
975 * .ANI cursor support
976 */
977 #define RIFF_FOURCC( c0, c1, c2, c3 ) \
978 ( (DWORD)(BYTE)(c0) | ( (DWORD)(BYTE)(c1) << 8 ) | \
979 ( (DWORD)(BYTE)(c2) << 16 ) | ( (DWORD)(BYTE)(c3) << 24 ) )
980
981 #define ANI_RIFF_ID RIFF_FOURCC('R', 'I', 'F', 'F')
982 #define ANI_LIST_ID RIFF_FOURCC('L', 'I', 'S', 'T')
983 #define ANI_ACON_ID RIFF_FOURCC('A', 'C', 'O', 'N')
984 #define ANI_anih_ID RIFF_FOURCC('a', 'n', 'i', 'h')
985 #define ANI_seq__ID RIFF_FOURCC('s', 'e', 'q', ' ')
986 #define ANI_fram_ID RIFF_FOURCC('f', 'r', 'a', 'm')
987 #define ANI_rate_ID RIFF_FOURCC('r', 'a', 't', 'e')
988
989 #define ANI_FLAG_ICON 0x1
990 #define ANI_FLAG_SEQUENCE 0x2
991
992 typedef struct {
993 DWORD header_size;
994 DWORD num_frames;
995 DWORD num_steps;
996 DWORD width;
997 DWORD height;
998 DWORD bpp;
999 DWORD num_planes;
1000 DWORD display_rate;
1001 DWORD flags;
1002 } ani_header;
1003
1004 typedef struct {
1005 DWORD data_size;
1006 const unsigned char *data;
1007 } riff_chunk_t;
1008
1009 static void dump_ani_header( const ani_header *header )
1010 {
1011 TRACE(" header size: %d\n", header->header_size);
1012 TRACE(" frames: %d\n", header->num_frames);
1013 TRACE(" steps: %d\n", header->num_steps);
1014 TRACE(" width: %d\n", header->width);
1015 TRACE(" height: %d\n", header->height);
1016 TRACE(" bpp: %d\n", header->bpp);
1017 TRACE(" planes: %d\n", header->num_planes);
1018 TRACE(" display rate: %d\n", header->display_rate);
1019 TRACE(" flags: 0x%08x\n", header->flags);
1020 }
1021
1022
1023 /*
1024 * RIFF:
1025 * DWORD "RIFF"
1026 * DWORD size
1027 * DWORD riff_id
1028 * BYTE[] data
1029 *
1030 * LIST:
1031 * DWORD "LIST"
1032 * DWORD size
1033 * DWORD list_id
1034 * BYTE[] data
1035 *
1036 * CHUNK:
1037 * DWORD chunk_id
1038 * DWORD size
1039 * BYTE[] data
1040 */
1041 static void riff_find_chunk( DWORD chunk_id, DWORD chunk_type, const riff_chunk_t *parent_chunk, riff_chunk_t *chunk )
1042 {
1043 const unsigned char *ptr = parent_chunk->data;
1044 const unsigned char *end = parent_chunk->data + (parent_chunk->data_size - (2 * sizeof(DWORD)));
1045
1046 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) end -= sizeof(DWORD);
1047
1048 while (ptr < end)
1049 {
1050 if ((!chunk_type && *(const DWORD *)ptr == chunk_id )
1051 || (chunk_type && *(const DWORD *)ptr == chunk_type && *((const DWORD *)ptr + 2) == chunk_id ))
1052 {
1053 ptr += sizeof(DWORD);
1054 chunk->data_size = (*(const DWORD *)ptr + 1) & ~1;
1055 ptr += sizeof(DWORD);
1056 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) ptr += sizeof(DWORD);
1057 chunk->data = ptr;
1058
1059 return;
1060 }
1061
1062 ptr += sizeof(DWORD);
1063 ptr += (*(const DWORD *)ptr + 1) & ~1;
1064 ptr += sizeof(DWORD);
1065 }
1066 }
1067
1068
1069 /*
1070 * .ANI layout:
1071 *
1072 * RIFF:'ACON' RIFF chunk
1073 * |- CHUNK:'anih' Header
1074 * |- CHUNK:'seq ' Sequence information (optional)
1075 * \- LIST:'fram' Frame list
1076 * |- CHUNK:icon Cursor frames
1077 * |- CHUNK:icon
1078 * |- ...
1079 * \- CHUNK:icon
1080 */
1081 static HCURSOR CURSORICON_CreateIconFromANI( const LPBYTE bits, DWORD bits_size, INT width, INT height,
1082 INT depth, BOOL is_icon, UINT loadflags )
1083 {
1084 struct animated_cursoricon_object *ani_icon_data;
1085 struct cursoricon_object *info;
1086 DWORD *frame_rates = NULL;
1087 DWORD *frame_seq = NULL;
1088 ani_header header = {0};
1089 BOOL use_seq = FALSE;
1090 HCURSOR cursor = 0;
1091 UINT i, error = 0;
1092 HICON *frames;
1093
1094 riff_chunk_t root_chunk = { bits_size, bits };
1095 riff_chunk_t ACON_chunk = {0};
1096 riff_chunk_t anih_chunk = {0};
1097 riff_chunk_t fram_chunk = {0};
1098 riff_chunk_t rate_chunk = {0};
1099 riff_chunk_t seq_chunk = {0};
1100 const unsigned char *icon_chunk;
1101 const unsigned char *icon_data;
1102
1103 TRACE("bits %p, bits_size %d\n", bits, bits_size);
1104
1105 riff_find_chunk( ANI_ACON_ID, ANI_RIFF_ID, &root_chunk, &ACON_chunk );
1106 if (!ACON_chunk.data)
1107 {
1108 ERR("Failed to get root chunk.\n");
1109 return 0;
1110 }
1111
1112 riff_find_chunk( ANI_anih_ID, 0, &ACON_chunk, &anih_chunk );
1113 if (!anih_chunk.data)
1114 {
1115 ERR("Failed to get 'anih' chunk.\n");
1116 return 0;
1117 }
1118 memcpy( &header, anih_chunk.data, sizeof(header) );
1119 dump_ani_header( &header );
1120
1121 if (!(header.flags & ANI_FLAG_ICON))
1122 {
1123 FIXME("Raw animated icon/cursor data is not currently supported.\n");
1124 return 0;
1125 }
1126
1127 if (header.flags & ANI_FLAG_SEQUENCE)
1128 {
1129 riff_find_chunk( ANI_seq__ID, 0, &ACON_chunk, &seq_chunk );
1130 if (seq_chunk.data)
1131 {
1132 frame_seq = (DWORD *) seq_chunk.data;
1133 use_seq = TRUE;
1134 }
1135 else
1136 {
1137 FIXME("Sequence data expected but not found, assuming steps == frames.\n");
1138 header.num_steps = header.num_frames;
1139 }
1140 }
1141
1142 riff_find_chunk( ANI_rate_ID, 0, &ACON_chunk, &rate_chunk );
1143 if (rate_chunk.data)
1144 frame_rates = (DWORD *) rate_chunk.data;
1145
1146 riff_find_chunk( ANI_fram_ID, ANI_LIST_ID, &ACON_chunk, &fram_chunk );
1147 if (!fram_chunk.data)
1148 {
1149 ERR("Failed to get icon list.\n");
1150 return 0;
1151 }
1152
1153 cursor = alloc_icon_handle( TRUE, header.num_steps );
1154 if (!cursor) return 0;
1155 frames = HeapAlloc( GetProcessHeap(), 0, sizeof(DWORD)*header.num_frames );
1156 if (!frames)
1157 {
1158 free_icon_handle( cursor );
1159 return 0;
1160 }
1161
1162 info = get_icon_ptr( cursor );
1163 ani_icon_data = (struct animated_cursoricon_object *) info;
1164 info->is_icon = is_icon;
1165 ani_icon_data->num_frames = header.num_frames;
1166
1167 /* The .ANI stores the display rate in jiffies (1/60s) */
1168 info->delay = header.display_rate;
1169
1170 icon_chunk = fram_chunk.data;
1171 icon_data = fram_chunk.data + (2 * sizeof(DWORD));
1172 for (i=0; i<header.num_frames; i++)
1173 {
1174 const DWORD chunk_size = *(const DWORD *)(icon_chunk + sizeof(DWORD));
1175 const CURSORICONFILEDIRENTRY *entry;
1176 INT frameWidth, frameHeight;
1177 const BITMAPINFO *bmi;
1178
1179 entry = CURSORICON_FindBestIconFile((const CURSORICONFILEDIR *) icon_data,
1180 width, height, depth, loadflags );
1181
1182 bmi = (const BITMAPINFO *) (icon_data + entry->dwDIBOffset);
1183 info->hotspot.x = entry->xHotspot;
1184 info->hotspot.y = entry->yHotspot;
1185 if (!header.width || !header.height)
1186 {
1187 frameWidth = entry->bWidth;
1188 frameHeight = entry->bHeight;
1189 }
1190 else
1191 {
1192 frameWidth = header.width;
1193 frameHeight = header.height;
1194 }
1195
1196 /* Grab a frame from the animation */
1197 frames[i] = create_icon_from_bmi( (BITMAPINFO *)bmi, NULL, NULL, NULL, info->hotspot,
1198 is_icon, frameWidth, frameHeight, loadflags );
1199 if (!frames[i])
1200 {
1201 FIXME_(cursor)("failed to convert animated cursor frame.\n");
1202 error = TRUE;
1203 if (i == 0)
1204 {
1205 FIXME_(cursor)("Completely failed to create animated cursor!\n");
1206 ani_icon_data->num_frames = 0;
1207 release_icon_ptr( cursor, info );
1208 free_icon_handle( cursor );
1209 HeapFree( GetProcessHeap(), 0, frames );
1210 return 0;
1211 }
1212 break;
1213 }
1214
1215 /* Advance to the next chunk */
1216 icon_chunk += chunk_size + (2 * sizeof(DWORD));
1217 icon_data = icon_chunk + (2 * sizeof(DWORD));
1218 }
1219
1220 /* There was an error but we at least decoded the first frame, so just use that frame */
1221 if (error)
1222 {
1223 FIXME_(cursor)("Error creating animated cursor, only using first frame!\n");
1224 for (i=1; i<ani_icon_data->num_frames; i++)
1225 free_icon_handle( ani_icon_data->frames[i] );
1226 use_seq = FALSE;
1227 info->delay = 0;
1228 ani_icon_data->num_steps = 1;
1229 ani_icon_data->num_frames = 1;
1230 }
1231
1232 /* Setup the animated frames in the correct sequence */
1233 for (i=0; i<ani_icon_data->num_steps; i++)
1234 {
1235 DWORD frame_id = use_seq ? frame_seq[i] : i;
1236 struct cursoricon_frame *frame;
1237
1238 if (frame_id >= ani_icon_data->num_frames)
1239 {
1240 frame_id = ani_icon_data->num_frames-1;
1241 ERR_(cursor)("Sequence indicates frame past end of list, corrupt?\n");
1242 }
1243 ani_icon_data->frames[i] = frames[frame_id];
1244 frame = get_icon_frame( info, i );
1245 if (frame_rates)
1246 frame->delay = frame_rates[i];
1247 else
1248 frame->delay = ~0;
1249 release_icon_frame( info, i, frame );
1250 }
1251
1252 HeapFree( GetProcessHeap(), 0, frames );
1253 release_icon_ptr( cursor, info );
1254
1255 return cursor;
1256 }
1257
1258
1259 /**********************************************************************
1260 * CreateIconFromResourceEx (USER32.@)
1261 *
1262 * FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
1263 * with cbSize parameter as well.
1264 */
1265 HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
1266 BOOL bIcon, DWORD dwVersion,
1267 INT width, INT height,
1268 UINT cFlag )
1269 {
1270 POINT hotspot;
1271 BITMAPINFO *bmi;
1272
1273 TRACE_(cursor)("%p (%u bytes), ver %08x, %ix%i %s %s\n",
1274 bits, cbSize, dwVersion, width, height,
1275 bIcon ? "icon" : "cursor", (cFlag & LR_MONOCHROME) ? "mono" : "" );
1276
1277 if (!bits) return 0;
1278
1279 if (dwVersion == 0x00020000)
1280 {
1281 FIXME_(cursor)("\t2.xx resources are not supported\n");
1282 return 0;
1283 }
1284
1285 /* Check if the resource is an animated icon/cursor */
1286 if (!memcmp(bits, "RIFF", 4))
1287 return CURSORICON_CreateIconFromANI( bits, cbSize, width, height,
1288 0 /* default depth */, bIcon, cFlag );
1289
1290 if (bIcon)
1291 {
1292 hotspot.x = width / 2;
1293 hotspot.y = height / 2;
1294 bmi = (BITMAPINFO *)bits;
1295 }
1296 else /* get the hotspot */
1297 {
1298 SHORT *pt = (SHORT *)bits;
1299 hotspot.x = pt[0];
1300 hotspot.y = pt[1];
1301 bmi = (BITMAPINFO *)(pt + 2);
1302 }
1303
1304 return create_icon_from_bmi( bmi, NULL, NULL, NULL, hotspot, bIcon, width, height, cFlag );
1305 }
1306
1307
1308 /**********************************************************************
1309 * CreateIconFromResource (USER32.@)
1310 */
1311 HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize,
1312 BOOL bIcon, DWORD dwVersion)
1313 {
1314 return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
1315 }
1316
1317
1318 static HICON CURSORICON_LoadFromFile( LPCWSTR filename,
1319 INT width, INT height, INT depth,
1320 BOOL fCursor, UINT loadflags)
1321 {
1322 const CURSORICONFILEDIRENTRY *entry;
1323 const CURSORICONFILEDIR *dir;
1324 DWORD filesize = 0;
1325 HICON hIcon = 0;
1326 LPBYTE bits;
1327 POINT hotspot;
1328
1329 TRACE("loading %s\n", debugstr_w( filename ));
1330
1331 bits = map_fileW( filename, &filesize );
1332 if (!bits)
1333 return hIcon;
1334
1335 /* Check for .ani. */
1336 if (memcmp( bits, "RIFF", 4 ) == 0)
1337 {
1338 hIcon = CURSORICON_CreateIconFromANI( bits, filesize, width, height, depth, !fCursor, loadflags );
1339 goto end;
1340 }
1341
1342 dir = (const CURSORICONFILEDIR*) bits;
1343 if ( filesize < sizeof(*dir) )
1344 goto end;
1345
1346 if ( filesize < (sizeof(*dir) + sizeof(dir->idEntries[0])*(dir->idCount-1)) )
1347 goto end;
1348
1349 if ( fCursor )
1350 entry = CURSORICON_FindBestCursorFile( dir, width, height, depth, loadflags );
1351 else
1352 entry = CURSORICON_FindBestIconFile( dir, width, height, depth, loadflags );
1353
1354 if ( !entry )
1355 goto end;
1356
1357 /* check that we don't run off the end of the file */
1358 if ( entry->dwDIBOffset > filesize )
1359 goto end;
1360 if ( entry->dwDIBOffset + entry->dwDIBSize > filesize )
1361 goto end;
1362
1363 hotspot.x = entry->xHotspot;
1364 hotspot.y = entry->yHotspot;
1365 hIcon = create_icon_from_bmi( (BITMAPINFO *)&bits[entry->dwDIBOffset], NULL, NULL, NULL,
1366 hotspot, !fCursor, width, height, loadflags );
1367 end:
1368 TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon );
1369 UnmapViewOfFile( bits );
1370 return hIcon;
1371 }
1372
1373 /**********************************************************************
1374 * CURSORICON_Load
1375 *
1376 * Load a cursor or icon from resource or file.
1377 */
1378 static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
1379 INT width, INT height, INT depth,
1380 BOOL fCursor, UINT loadflags)
1381 {
1382 HANDLE handle = 0;
1383 HICON hIcon = 0;
1384 HRSRC hRsrc;
1385 const CURSORICONDIR *dir;
1386 const CURSORICONDIRENTRY *dirEntry;
1387 LPBYTE bits;
1388 WORD wResId;
1389 POINT hotspot;
1390
1391 TRACE("%p, %s, %dx%d, depth %d, fCursor %d, flags 0x%04x\n",
1392 hInstance, debugstr_w(name), width, height, depth, fCursor, loadflags);
1393
1394 if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
1395 return CURSORICON_LoadFromFile( name, width, height, depth, fCursor, loadflags );
1396
1397 if (!hInstance) hInstance = user32_module; /* Load OEM cursor/icon */
1398
1399 /* don't cache 16-bit instances (FIXME: should never get 16-bit instances in the first place) */
1400 if ((ULONG_PTR)hInstance >> 16 == 0) loadflags &= ~LR_SHARED;
1401
1402 /* Get directory resource ID */
1403
1404 if (!(hRsrc = FindResourceW( hInstance, name,
1405 (LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
1406 {
1407 /* try animated resource */
1408 if (!(hRsrc = FindResourceW( hInstance, name,
1409 (LPWSTR)(fCursor ? RT_ANICURSOR : RT_ANIICON) ))) return 0;
1410 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1411 bits = LockResource( handle );
1412 return CURSORICON_CreateIconFromANI( bits, SizeofResource( hInstance, handle ),
1413 width, height, depth, !fCursor, loadflags );
1414 }
1415
1416 /* Find the best entry in the directory */
1417
1418 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1419 if (!(dir = LockResource( handle ))) return 0;
1420 if (fCursor)
1421 dirEntry = CURSORICON_FindBestCursorRes( dir, width, height, depth, loadflags );
1422 else
1423 dirEntry = CURSORICON_FindBestIconRes( dir, width, height, depth, loadflags );
1424 if (!dirEntry) return 0;
1425 wResId = dirEntry->wResId;
1426 FreeResource( handle );
1427
1428 /* Load the resource */
1429
1430 if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
1431 (LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0;
1432
1433 /* If shared icon, check whether it was already loaded */
1434 if (loadflags & LR_SHARED)
1435 {
1436 struct cursoricon_object *ptr;
1437
1438 USER_Lock();
1439 LIST_FOR_EACH_ENTRY( ptr, &icon_cache, struct cursoricon_object, entry )
1440 {
1441 if (ptr->module != hInstance) continue;
1442 if (ptr->rsrc != hRsrc) continue;
1443 hIcon = ptr->obj.handle;
1444 break;
1445 }
1446 USER_Unlock();
1447 if (hIcon) return hIcon;
1448 }
1449
1450 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1451 bits = LockResource( handle );
1452
1453 if (!fCursor)
1454 {
1455 hotspot.x = width / 2;
1456 hotspot.y = height / 2;
1457 }
1458 else /* get the hotspot */
1459 {
1460 SHORT *pt = (SHORT *)bits;
1461 hotspot.x = pt[0];
1462 hotspot.y = pt[1];
1463 bits += 2 * sizeof(SHORT);
1464 }
1465 hIcon = create_icon_from_bmi( (BITMAPINFO *)bits, hInstance, name, hRsrc,
1466 hotspot, !fCursor, width, height, loadflags );
1467 FreeResource( handle );
1468 return hIcon;
1469 }
1470
1471
1472 /***********************************************************************
1473 * CreateCursor (USER32.@)
1474 */
1475 HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
1476 INT xHotSpot, INT yHotSpot,
1477 INT nWidth, INT nHeight,
1478 LPCVOID lpANDbits, LPCVOID lpXORbits )
1479 {
1480 ICONINFO info;
1481 HCURSOR hCursor;
1482
1483 TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
1484 nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
1485
1486 info.fIcon = FALSE;
1487 info.xHotspot = xHotSpot;
1488 info.yHotspot = yHotSpot;
1489 info.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1490 info.hbmColor = CreateBitmap( nWidth, nHeight, 1, 1, lpXORbits );
1491 hCursor = CreateIconIndirect( &info );
1492 DeleteObject( info.hbmMask );
1493 DeleteObject( info.hbmColor );
1494 return hCursor;
1495 }
1496
1497
1498 /***********************************************************************
1499 * CreateIcon (USER32.@)
1500 *
1501 * Creates an icon based on the specified bitmaps. The bitmaps must be
1502 * provided in a device dependent format and will be resized to
1503 * (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
1504 * depth. The provided bitmaps must be top-down bitmaps.
1505 * Although Windows does not support 15bpp(*) this API must support it
1506 * for Winelib applications.
1507 *
1508 * (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
1509 * format!
1510 *
1511 * RETURNS
1512 * Success: handle to an icon
1513 * Failure: NULL
1514 *
1515 * FIXME: Do we need to resize the bitmaps?
1516 */
1517 HICON WINAPI CreateIcon(
1518 HINSTANCE hInstance, /* [in] the application's hInstance */
1519 INT nWidth, /* [in] the width of the provided bitmaps */
1520 INT nHeight, /* [in] the height of the provided bitmaps */
1521 BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
1522 BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
1523 LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
1524 LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
1525 {
1526 ICONINFO iinfo;
1527 HICON hIcon;
1528
1529 TRACE_(icon)("%dx%d, planes %d, bpp %d, xor %p, and %p\n",
1530 nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits, lpANDbits);
1531
1532 iinfo.fIcon = TRUE;
1533 iinfo.xHotspot = nWidth / 2;
1534 iinfo.yHotspot = nHeight / 2;
1535 iinfo.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1536 iinfo.hbmColor = CreateBitmap( nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits );
1537
1538 hIcon = CreateIconIndirect( &iinfo );
1539
1540 DeleteObject( iinfo.hbmMask );
1541 DeleteObject( iinfo.hbmColor );
1542
1543 return hIcon;
1544 }
1545
1546
1547 /***********************************************************************
1548 * CopyIcon (USER32.@)
1549 */
1550 HICON WINAPI CopyIcon( HICON hIcon )
1551 {
1552 struct cursoricon_object *ptrOld, *ptrNew;
1553 HICON hNew;
1554
1555 if (!(ptrOld = get_icon_ptr( hIcon )))
1556 {
1557 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
1558 return 0;
1559 }
1560 if ((hNew = alloc_icon_handle( FALSE, 1 )))
1561 {
1562 struct cursoricon_frame *frameOld, *frameNew;
1563
1564 ptrNew = get_icon_ptr( hNew );
1565 ptrNew->is_icon = ptrOld->is_icon;
1566 ptrNew->hotspot = ptrOld->hotspot;
1567 if (!(frameOld = get_icon_frame( ptrOld, 0 )))
1568 {
1569 release_icon_ptr( hIcon, ptrOld );
1570 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
1571 return 0;
1572 }
1573 if (!(frameNew = get_icon_frame( ptrNew, 0 )))
1574 {
1575 release_icon_frame( ptrOld, 0, frameOld );
1576 release_icon_ptr( hIcon, ptrOld );
1577 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
1578 return 0;
1579 }
1580 frameNew->delay = 0;
1581 frameNew->width = frameOld->width;
1582 frameNew->height = frameOld->height;
1583 frameNew->mask = copy_bitmap( frameOld->mask );
1584 frameNew->color = copy_bitmap( frameOld->color );
1585 frameNew->alpha = copy_bitmap( frameOld->alpha );
1586 release_icon_frame( ptrOld, 0, frameOld );
1587 release_icon_frame( ptrNew, 0, frameNew );
1588 release_icon_ptr( hNew, ptrNew );
1589 }
1590 release_icon_ptr( hIcon, ptrOld );
1591 if (hNew) USER_Driver->pCreateCursorIcon( hNew );
1592 return hNew;
1593 }
1594
1595
1596 /***********************************************************************
1597 * DestroyIcon (USER32.@)
1598 */
1599 BOOL WINAPI DestroyIcon( HICON hIcon )
1600 {
1601 BOOL ret = FALSE;
1602 struct cursoricon_object *obj = get_icon_ptr( hIcon );
1603
1604 TRACE_(icon)("%p\n", hIcon );
1605
1606 if (obj)
1607 {
1608 BOOL shared = (obj->rsrc != NULL);
1609 release_icon_ptr( hIcon, obj );
1610 ret = (GetCursor() != hIcon);
1611 if (!shared) free_icon_handle( hIcon );
1612 }
1613 return ret;
1614 }
1615
1616
1617 /***********************************************************************
1618 * DestroyCursor (USER32.@)
1619 */
1620 BOOL WINAPI DestroyCursor( HCURSOR hCursor )
1621 {
1622 return DestroyIcon( hCursor );
1623 }
1624
1625 /***********************************************************************
1626 * DrawIcon (USER32.@)
1627 */
1628 BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
1629 {
1630 return DrawIconEx( hdc, x, y, hIcon, 0, 0, 0, 0, DI_NORMAL | DI_COMPAT | DI_DEFAULTSIZE );
1631 }
1632
1633 /***********************************************************************
1634 * SetCursor (USER32.@)
1635 *
1636 * Set the cursor shape.
1637 *
1638 * RETURNS
1639 * A handle to the previous cursor shape.
1640 */
1641 HCURSOR WINAPI DECLSPEC_HOTPATCH SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
1642 {
1643 struct cursoricon_object *obj;
1644 HCURSOR hOldCursor;
1645 int show_count;
1646 BOOL ret;
1647
1648 TRACE("%p\n", hCursor);
1649
1650 SERVER_START_REQ( set_cursor )
1651 {
1652 req->flags = SET_CURSOR_HANDLE;
1653 req->handle = wine_server_user_handle( hCursor );
1654 if ((ret = !wine_server_call_err( req )))
1655 {
1656 hOldCursor = wine_server_ptr_handle( reply->prev_handle );
1657 show_count = reply->prev_count;
1658 }
1659 }
1660 SERVER_END_REQ;
1661
1662 if (!ret) return 0;
1663 USER_Driver->pSetCursor( show_count >= 0 ? hCursor : 0 );
1664
1665 if (!(obj = get_icon_ptr( hOldCursor ))) return 0;
1666 release_icon_ptr( hOldCursor, obj );
1667 return hOldCursor;
1668 }
1669
1670 /***********************************************************************
1671 * ShowCursor (USER32.@)
1672 */
1673 INT WINAPI DECLSPEC_HOTPATCH ShowCursor( BOOL bShow )
1674 {
1675 HCURSOR cursor;
1676 int increment = bShow ? 1 : -1;
1677 int count;
1678
1679 SERVER_START_REQ( set_cursor )
1680 {
1681 req->flags = SET_CURSOR_COUNT;
1682 req->show_count = increment;
1683 wine_server_call( req );
1684 cursor = wine_server_ptr_handle( reply->prev_handle );
1685 count = reply->prev_count + increment;
1686 }
1687 SERVER_END_REQ;
1688
1689 TRACE("%d, count=%d\n", bShow, count );
1690
1691 if (bShow && !count) USER_Driver->pSetCursor( cursor );
1692 else if (!bShow && count == -1) USER_Driver->pSetCursor( 0 );
1693
1694 return count;
1695 }
1696
1697 /***********************************************************************
1698 * GetCursor (USER32.@)
1699 */
1700 HCURSOR WINAPI GetCursor(void)
1701 {
1702 HCURSOR ret;
1703
1704 SERVER_START_REQ( set_cursor )
1705 {
1706 req->flags = 0;
1707 wine_server_call( req );
1708 ret = wine_server_ptr_handle( reply->prev_handle );
1709 }
1710 SERVER_END_REQ;
1711 return ret;
1712 }
1713
1714
1715 /***********************************************************************
1716 * ClipCursor (USER32.@)
1717 */
1718 BOOL WINAPI DECLSPEC_HOTPATCH ClipCursor( const RECT *rect )
1719 {
1720 BOOL ret;
1721 RECT new_rect;
1722
1723 TRACE( "Clipping to %s\n", wine_dbgstr_rect(rect) );
1724
1725 if (rect && (rect->left > rect->right || rect->top > rect->bottom)) return FALSE;
1726
1727 SERVER_START_REQ( set_cursor )
1728 {
1729 req->clip_msg = WM_WINE_CLIPCURSOR;
1730 if (rect)
1731 {
1732 req->flags = SET_CURSOR_CLIP;
1733 req->clip.left = rect->left;
1734 req->clip.top = rect->top;
1735 req->clip.right = rect->right;
1736 req->clip.bottom = rect->bottom;
1737 }
1738 else req->flags = SET_CURSOR_NOCLIP;
1739
1740 if ((ret = !wine_server_call( req )))
1741 {
1742 new_rect.left = reply->new_clip.left;
1743 new_rect.top = reply->new_clip.top;
1744 new_rect.right = reply->new_clip.right;
1745 new_rect.bottom = reply->new_clip.bottom;
1746 }
1747 }
1748 SERVER_END_REQ;
1749 if (ret) USER_Driver->pClipCursor( &new_rect );
1750 return ret;
1751 }
1752
1753
1754 /***********************************************************************
1755 * GetClipCursor (USER32.@)
1756 */
1757 BOOL WINAPI DECLSPEC_HOTPATCH GetClipCursor( RECT *rect )
1758 {
1759 BOOL ret;
1760
1761 if (!rect) return FALSE;
1762
1763 SERVER_START_REQ( set_cursor )
1764 {
1765 req->flags = 0;
1766 if ((ret = !wine_server_call( req )))
1767 {
1768 rect->left = reply->new_clip.left;
1769 rect->top = reply->new_clip.top;
1770 rect->right = reply->new_clip.right;
1771 rect->bottom = reply->new_clip.bottom;
1772 }
1773 }
1774 SERVER_END_REQ;
1775 return ret;
1776 }
1777
1778
1779 /***********************************************************************
1780 * SetSystemCursor (USER32.@)
1781 */
1782 BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id)
1783 {
1784 FIXME("(%p,%08x),stub!\n", hcur, id);
1785 return TRUE;
1786 }
1787
1788
1789 /**********************************************************************
1790 * LookupIconIdFromDirectoryEx (USER32.@)
1791 */
1792 INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
1793 INT width, INT height, UINT cFlag )
1794 {
1795 const CURSORICONDIR *dir = (const CURSORICONDIR*)xdir;
1796 UINT retVal = 0;
1797 if( dir && !dir->idReserved && (dir->idType & 3) )
1798 {
1799 const CURSORICONDIRENTRY* entry;
1800
1801 const HDC hdc = GetDC(0);
1802 const int depth = (cFlag & LR_MONOCHROME) ?
1803 1 : GetDeviceCaps(hdc, BITSPIXEL);
1804 ReleaseDC(0, hdc);
1805
1806 if( bIcon )
1807 entry = CURSORICON_FindBestIconRes( dir, width, height, depth, LR_DEFAULTSIZE );
1808 else
1809 entry = CURSORICON_FindBestCursorRes( dir, width, height, depth, LR_DEFAULTSIZE );
1810
1811 if( entry ) retVal = entry->wResId;
1812 }
1813 else WARN_(cursor)("invalid resource directory\n");
1814 return retVal;
1815 }
1816
1817 /**********************************************************************
1818 * LookupIconIdFromDirectory (USER32.@)
1819 */
1820 INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
1821 {
1822 return LookupIconIdFromDirectoryEx( dir, bIcon, 0, 0, bIcon ? 0 : LR_MONOCHROME );
1823 }
1824
1825 /***********************************************************************
1826 * LoadCursorW (USER32.@)
1827 */
1828 HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
1829 {
1830 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1831
1832 return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
1833 LR_SHARED | LR_DEFAULTSIZE );
1834 }
1835
1836 /***********************************************************************
1837 * LoadCursorA (USER32.@)
1838 */
1839 HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
1840 {
1841 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1842
1843 return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
1844 LR_SHARED | LR_DEFAULTSIZE );
1845 }
1846
1847 /***********************************************************************
1848 * LoadCursorFromFileW (USER32.@)
1849 */
1850 HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
1851 {
1852 TRACE("%s\n", debugstr_w(name));
1853
1854 return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
1855 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1856 }
1857
1858 /***********************************************************************
1859 * LoadCursorFromFileA (USER32.@)
1860 */
1861 HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
1862 {
1863 TRACE("%s\n", debugstr_a(name));
1864
1865 return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
1866 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1867 }
1868
1869 /***********************************************************************
1870 * LoadIconW (USER32.@)
1871 */
1872 HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
1873 {
1874 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1875
1876 return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
1877 LR_SHARED | LR_DEFAULTSIZE );
1878 }
1879
1880 /***********************************************************************
1881 * LoadIconA (USER32.@)
1882 */
1883 HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
1884 {
1885 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1886
1887 return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
1888 LR_SHARED | LR_DEFAULTSIZE );
1889 }
1890
1891 /**********************************************************************
1892 * GetCursorFrameInfo (USER32.@)
1893 *
1894 * NOTES
1895 * So far no use has been found for the second parameter, it is currently presumed
1896 * that this parameter is reserved for future use.
1897 *
1898 * PARAMS
1899 * hCursor [I] Handle to cursor for which to retrieve information
1900 * reserved [I] No purpose has been found for this parameter (may be NULL)
1901 * istep [I] The step of the cursor for which to retrieve information
1902 * rate_jiffies [O] Pointer to DWORD that receives the frame-specific delay (cannot be NULL)
1903 * num_steps [O] Pointer to DWORD that receives the number of steps in the cursor (cannot be NULL)
1904 *
1905 * RETURNS
1906 * Success: Handle to a frame of the cursor (specified by istep)
1907 * Failure: NULL cursor (0)
1908 */
1909 HCURSOR WINAPI GetCursorFrameInfo(HCURSOR hCursor, DWORD reserved, DWORD istep, DWORD *rate_jiffies, DWORD *num_steps)
1910 {
1911 struct cursoricon_object *ptr;
1912 HCURSOR ret = 0;
1913 UINT icon_steps;
1914
1915 if (rate_jiffies == NULL || num_steps == NULL) return 0;
1916
1917 if (!(ptr = get_icon_ptr( hCursor ))) return 0;
1918
1919 TRACE("%p => %d %d %p %p\n", hCursor, reserved, istep, rate_jiffies, num_steps);
1920 if (reserved != 0)
1921 FIXME("Second parameter non-zero (%d), please report this!\n", reserved);
1922
1923 icon_steps = get_icon_steps(ptr);
1924 if (istep < icon_steps || !ptr->is_ani)
1925 {
1926 struct animated_cursoricon_object *ani_icon_data = (struct animated_cursoricon_object *) ptr;
1927 UINT icon_frames = 1;
1928
1929 if (ptr->is_ani)
1930 icon_frames = ani_icon_data->num_frames;
1931 if (ptr->is_ani && icon_frames > 1)
1932 ret = ani_icon_data->frames[istep];
1933 else
1934 ret = hCursor;
1935 if (icon_frames == 1)
1936 {
1937 *rate_jiffies = 0;
1938 *num_steps = 1;
1939 }
1940 else if (icon_steps == 1)
1941 {
1942 *num_steps = ~0;
1943 *rate_jiffies = ptr->delay;
1944 }
1945 else if (istep < icon_steps)
1946 {
1947 struct cursoricon_frame *frame;
1948
1949 *num_steps = icon_steps;
1950 frame = get_icon_frame( ptr, istep );
1951 if (get_icon_steps(ptr) == 1)
1952 *num_steps = ~0;
1953 else
1954 *num_steps = get_icon_steps(ptr);
1955 /* If this specific frame does not have a delay then use the global delay */
1956 if (frame->delay == ~0)
1957 *rate_jiffies = ptr->delay;
1958 else
1959 *rate_jiffies = frame->delay;
1960 release_icon_frame( ptr, istep, frame );
1961 }
1962 }
1963
1964 release_icon_ptr( hCursor, ptr );
1965
1966 return ret;
1967 }
1968
1969 /**********************************************************************
1970 * GetIconInfo (USER32.@)
1971 */
1972 BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
1973 {
1974 ICONINFOEXW infoW;
1975
1976 infoW.cbSize = sizeof(infoW);
1977 if (!GetIconInfoExW( hIcon, &infoW )) return FALSE;
1978 iconinfo->fIcon = infoW.fIcon;
1979 iconinfo->xHotspot = infoW.xHotspot;
1980 iconinfo->yHotspot = infoW.yHotspot;
1981 iconinfo->hbmColor = infoW.hbmColor;
1982 iconinfo->hbmMask = infoW.hbmMask;
1983 return TRUE;
1984 }
1985
1986 /**********************************************************************
1987 * GetIconInfoExA (USER32.@)
1988 */
1989 BOOL WINAPI GetIconInfoExA( HICON icon, ICONINFOEXA *info )
1990 {
1991 ICONINFOEXW infoW;
1992
1993 if (info->cbSize != sizeof(*info))
1994 {
1995 SetLastError( ERROR_INVALID_PARAMETER );
1996 return FALSE;
1997 }
1998 infoW.cbSize = sizeof(infoW);
1999 if (!GetIconInfoExW( icon, &infoW )) return FALSE;
2000 info->fIcon = infoW.fIcon;
2001 info->xHotspot = infoW.xHotspot;
2002 info->yHotspot = infoW.yHotspot;
2003 info->hbmColor = infoW.hbmColor;
2004 info->hbmMask = infoW.hbmMask;
2005 info->wResID = infoW.wResID;
2006 WideCharToMultiByte( CP_ACP, 0, infoW.szModName, -1, info->szModName, MAX_PATH, NULL, NULL );
2007 WideCharToMultiByte( CP_ACP, 0, infoW.szResName, -1, info->szResName, MAX_PATH, NULL, NULL );
2008 return TRUE;
2009 }
2010
2011 /**********************************************************************
2012 * GetIconInfoExW (USER32.@)
2013 */
2014 BOOL WINAPI GetIconInfoExW( HICON icon, ICONINFOEXW *info )
2015 {
2016 struct cursoricon_frame *frame;
2017 struct cursoricon_object *ptr;
2018 HMODULE module;
2019 BOOL ret = TRUE;
2020
2021 if (info->cbSize != sizeof(*info))
2022 {
2023 SetLastError( ERROR_INVALID_PARAMETER );
2024 return FALSE;
2025 }
2026 if (!(ptr = get_icon_ptr( icon )))
2027 {
2028 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
2029 return FALSE;
2030 }
2031
2032 frame = get_icon_frame( ptr, 0 );
2033 if (!frame)
2034 {
2035 release_icon_ptr( icon, ptr );
2036 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
2037 return FALSE;
2038 }
2039
2040 TRACE("%p => %dx%d\n", icon, frame->width, frame->height);
2041
2042 info->fIcon = ptr->is_icon;
2043 info->xHotspot = ptr->hotspot.x;
2044 info->yHotspot = ptr->hotspot.y;
2045 info->hbmColor = copy_bitmap( frame->color );
2046 info->hbmMask = copy_bitmap( frame->mask );
2047 info->wResID = 0;
2048 info->szModName[0] = 0;
2049 info->szResName[0] = 0;
2050 if (ptr->module)
2051 {
2052 if (IS_INTRESOURCE( ptr->resname )) info->wResID = LOWORD( ptr->resname );
2053 else lstrcpynW( info->szResName, ptr->resname, MAX_PATH );
2054 }
2055 if (!info->hbmMask || (!info->hbmColor && frame->color))
2056 {
2057 DeleteObject( info->hbmMask );
2058 DeleteObject( info->hbmColor );
2059 ret = FALSE;
2060 }
2061 module = ptr->module;
2062 release_icon_frame( ptr, 0, frame );
2063 release_icon_ptr( icon, ptr );
2064 if (ret && module) GetModuleFileNameW( module, info->szModName, MAX_PATH );
2065 return ret;
2066 }
2067
2068 /* copy an icon bitmap, even when it can't be selected into a DC */
2069 /* helper for CreateIconIndirect */
2070 static void stretch_blt_icon( HDC hdc_dst, int dst_x, int dst_y, int dst_width, int dst_height,
2071 HBITMAP src, int width, int height )
2072 {
2073 HDC hdc = CreateCompatibleDC( 0 );
2074
2075 if (!SelectObject( hdc, src )) /* do it the hard way */
2076 {
2077 BITMAPINFO *info;
2078 void *bits;
2079
2080 if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) return;
2081 info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
2082 info->bmiHeader.biWidth = width;
2083 info->bmiHeader.biHeight = height;
2084 info->bmiHeader.biPlanes = GetDeviceCaps( hdc_dst, PLANES );
2085 info->bmiHeader.biBitCount = GetDeviceCaps( hdc_dst, BITSPIXEL );
2086 info->bmiHeader.biCompression = BI_RGB;
2087 info->bmiHeader.biSizeImage = height * get_dib_width_bytes( width, info->bmiHeader.biBitCount );
2088 info->bmiHeader.biXPelsPerMeter = 0;
2089 info->bmiHeader.biYPelsPerMeter = 0;
2090 info->bmiHeader.biClrUsed = 0;
2091 info->bmiHeader.biClrImportant = 0;
2092 bits = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage );
2093 if (bits && GetDIBits( hdc, src, 0, height, bits, info, DIB_RGB_COLORS ))
2094 StretchDIBits( hdc_dst, dst_x, dst_y, dst_width, dst_height,
2095 0, 0, width, height, bits, info, DIB_RGB_COLORS, SRCCOPY );
2096
2097 HeapFree( GetProcessHeap(), 0, bits );
2098 HeapFree( GetProcessHeap(), 0, info );
2099 }
2100 else StretchBlt( hdc_dst, dst_x, dst_y, dst_width, dst_height, hdc, 0, 0, width, height, SRCCOPY );
2101
2102 DeleteDC( hdc );
2103 }
2104
2105 /**********************************************************************
2106 * CreateIconIndirect (USER32.@)
2107 */
2108 HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
2109 {
2110 BITMAP bmpXor, bmpAnd;
2111 HICON hObj;
2112 HBITMAP color = 0, mask;
2113 int width, height;
2114 HDC hdc;
2115
2116 TRACE("color %p, mask %p, hotspot %ux%u, fIcon %d\n",
2117 iconinfo->hbmColor, iconinfo->hbmMask,
2118 iconinfo->xHotspot, iconinfo->yHotspot, iconinfo->fIcon);
2119
2120 if (!iconinfo->hbmMask) return 0;
2121
2122 GetObjectW( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
2123 TRACE("mask: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2124 bmpAnd.bmWidth, bmpAnd.bmHeight, bmpAnd.bmWidthBytes,
2125 bmpAnd.bmPlanes, bmpAnd.bmBitsPixel);
2126
2127 if (iconinfo->hbmColor)
2128 {
2129 GetObjectW( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
2130 TRACE("color: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2131 bmpXor.bmWidth, bmpXor.bmHeight, bmpXor.bmWidthBytes,
2132 bmpXor.bmPlanes, bmpXor.bmBitsPixel);
2133
2134 width = bmpXor.bmWidth;
2135 height = bmpXor.bmHeight;
2136 if (bmpXor.bmPlanes * bmpXor.bmBitsPixel != 1)
2137 {
2138 color = CreateCompatibleBitmap( screen_dc, width, height );
2139 mask = CreateBitmap( width, height, 1, 1, NULL );
2140 }
2141 else mask = CreateBitmap( width, height * 2, 1, 1, NULL );
2142 }
2143 else
2144 {
2145 width = bmpAnd.bmWidth;
2146 height = bmpAnd.bmHeight;
2147 mask = CreateBitmap( width, height, 1, 1, NULL );
2148 }
2149
2150 hdc = CreateCompatibleDC( 0 );
2151 SelectObject( hdc, mask );
2152 stretch_blt_icon( hdc, 0, 0, width, height, iconinfo->hbmMask, bmpAnd.bmWidth, bmpAnd.bmHeight );
2153
2154 if (color)
2155 {
2156 SelectObject( hdc, color );
2157 stretch_blt_icon( hdc, 0, 0, width, height, iconinfo->hbmColor, width, height );
2158 }
2159 else if (iconinfo->hbmColor)
2160 {
2161 stretch_blt_icon( hdc, 0, height, width, height, iconinfo->hbmColor, width, height );
2162 }
2163 else height /= 2;
2164
2165 DeleteDC( hdc );
2166
2167 hObj = alloc_icon_handle( FALSE, 1 );
2168 if (hObj)
2169 {
2170 struct cursoricon_object *info = get_icon_ptr( hObj );
2171 struct cursoricon_frame *frame;
2172
2173 info->is_icon = iconinfo->fIcon;
2174 frame = get_icon_frame( info, 0 );
2175 frame->delay = ~0;
2176 frame->width = width;
2177 frame->height = height;
2178 frame->color = color;
2179 frame->mask = mask;
2180 frame->alpha = create_alpha_bitmap( iconinfo->hbmColor, mask, NULL, NULL );
2181 release_icon_frame( info, 0, frame );
2182 if (info->is_icon)
2183 {
2184 info->hotspot.x = width / 2;
2185 info->hotspot.y = height / 2;
2186 }
2187 else
2188 {
2189 info->hotspot.x = iconinfo->xHotspot;
2190 info->hotspot.y = iconinfo->yHotspot;
2191 }
2192
2193 release_icon_ptr( hObj, info );
2194 USER_Driver->pCreateCursorIcon( hObj );
2195 }
2196 return hObj;
2197 }
2198
2199 /******************************************************************************
2200 * DrawIconEx (USER32.@) Draws an icon or cursor on device context
2201 *
2202 * NOTES
2203 * Why is this using SM_CXICON instead of SM_CXCURSOR?
2204 *
2205 * PARAMS
2206 * hdc [I] Handle to device context
2207 * x0 [I] X coordinate of upper left corner
2208 * y0 [I] Y coordinate of upper left corner
2209 * hIcon [I] Handle to icon to draw
2210 * cxWidth [I] Width of icon
2211 * cyWidth [I] Height of icon
2212 * istep [I] Index of frame in animated cursor
2213 * hbr [I] Handle to background brush
2214 * flags [I] Icon-drawing flags
2215 *
2216 * RETURNS
2217 * Success: TRUE
2218 * Failure: FALSE
2219 */
2220 BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
2221 INT cxWidth, INT cyWidth, UINT istep,
2222 HBRUSH hbr, UINT flags )
2223 {
2224 struct cursoricon_frame *frame;
2225 struct cursoricon_object *ptr;
2226 HDC hdc_dest, hMemDC;
2227 BOOL result = FALSE, DoOffscreen;
2228 HBITMAP hB_off = 0;
2229 COLORREF oldFg, oldBg;
2230 INT x, y, nStretchMode;
2231
2232 TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
2233 hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
2234
2235 if (!(ptr = get_icon_ptr( hIcon ))) return FALSE;
2236 if (istep >= get_icon_steps( ptr ))
2237 {
2238 TRACE_(icon)("Stepped past end of animated frames=%d\n", istep);
2239 release_icon_ptr( hIcon, ptr );
2240 return FALSE;
2241 }
2242 if (!(frame = get_icon_frame( ptr, istep )))
2243 {
2244 FIXME_(icon)("Error retrieving icon frame %d\n", istep);
2245 release_icon_ptr( hIcon, ptr );
2246 return FALSE;
2247 }
2248 if (!(hMemDC = CreateCompatibleDC( hdc )))
2249 {
2250 release_icon_frame( ptr, istep, frame );
2251 release_icon_ptr( hIcon, ptr );
2252 return FALSE;
2253 }
2254
2255 if (flags & DI_NOMIRROR)
2256 FIXME_(icon)("Ignoring flag DI_NOMIRROR\n");
2257
2258 /* Calculate the size of the destination image. */
2259 if (cxWidth == 0)
2260 {
2261 if (flags & DI_DEFAULTSIZE)
2262 cxWidth = GetSystemMetrics (SM_CXICON);
2263 else
2264 cxWidth = frame->width;
2265 }
2266 if (cyWidth == 0)
2267 {
2268 if (flags & DI_DEFAULTSIZE)
2269 cyWidth = GetSystemMetrics (SM_CYICON);
2270 else
2271 cyWidth = frame->height;
2272 }
2273
2274 DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
2275
2276 if (DoOffscreen) {
2277 RECT r;
2278
2279 r.left = 0;
2280 r.top = 0;
2281 r.right = cxWidth;
2282 r.bottom = cxWidth;
2283
2284 if (!(hdc_dest = CreateCompatibleDC(hdc))) goto failed;
2285 if (!(hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth)))
2286 {
2287 DeleteDC( hdc_dest );
2288 goto failed;
2289 }
2290 SelectObject(hdc_dest, hB_off);
2291 FillRect(hdc_dest, &r, hbr);
2292 x = y = 0;
2293 }
2294 else
2295 {
2296 hdc_dest = hdc;
2297 x = x0;
2298 y = y0;
2299 }
2300
2301 nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
2302
2303 oldFg = SetTextColor( hdc, RGB(0,0,0) );
2304 oldBg = SetBkColor( hdc, RGB(255,255,255) );
2305
2306 if (frame->alpha && (flags & DI_IMAGE))
2307 {
2308 BOOL is_mono = FALSE;
2309
2310 if (GetObjectType( hdc_dest ) == OBJ_MEMDC)
2311 {
2312 BITMAP bm;
2313 HBITMAP bmp = GetCurrentObject( hdc_dest, OBJ_BITMAP );
2314 is_mono = GetObjectW( bmp, sizeof(bm), &bm ) && bm.bmBitsPixel == 1;
2315 }
2316 if (!is_mono)
2317 {
2318 BLENDFUNCTION pixelblend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
2319 SelectObject( hMemDC, frame->alpha );
2320 if (GdiAlphaBlend( hdc_dest, x, y, cxWidth, cyWidth, hMemDC,
2321 0, 0, frame->width, frame->height,
2322 pixelblend )) goto done;
2323 }
2324 }
2325
2326 if (flags & DI_MASK)
2327 {
2328 SelectObject( hMemDC, frame->mask );
2329 StretchBlt( hdc_dest, x, y, cxWidth, cyWidth,
2330 hMemDC, 0, 0, frame->width, frame->height, SRCAND );
2331 }
2332
2333 if (flags & DI_IMAGE)
2334 {
2335 if (frame->color)
2336 {
2337 DWORD rop = (flags & DI_MASK) ? SRCINVERT : SRCCOPY;
2338 SelectObject( hMemDC, frame->color );
2339 StretchBlt( hdc_dest, x, y, cxWidth, cyWidth,
2340 hMemDC, 0, 0, frame->width, frame->height, rop );
2341 }
2342 else
2343 {
2344 DWORD rop = (flags & DI_MASK) ? SRCINVERT : SRCCOPY;
2345 SelectObject( hMemDC, frame->mask );
2346 StretchBlt( hdc_dest, x, y, cxWidth, cyWidth,
2347 hMemDC, 0, frame->height, frame->width,
2348 frame->height, rop );
2349 }
2350 }
2351
2352 done:
2353 if (DoOffscreen) BitBlt( hdc, x0, y0, cxWidth, cyWidth, hdc_dest, 0, 0, SRCCOPY );
2354
2355 SetTextColor( hdc, oldFg );
2356 SetBkColor( hdc, oldBg );
2357 SetStretchBltMode (hdc, nStretchMode);
2358 result = TRUE;
2359 if (hdc_dest != hdc) DeleteDC( hdc_dest );
2360 if (hB_off) DeleteObject(hB_off);
2361 failed:
2362 DeleteDC( hMemDC );
2363 release_icon_frame( ptr, istep, frame );
2364 release_icon_ptr( hIcon, ptr );
2365 return result;
2366 }
2367
2368 /***********************************************************************
2369 * DIB_FixColorsToLoadflags
2370 *
2371 * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
2372 * are in loadflags
2373 */
2374 static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
2375 {
2376 int colors;
2377 COLORREF c_W, c_S, c_F, c_L, c_C;
2378 int incr,i;
2379 RGBQUAD *ptr;
2380 int bitmap_type;
2381 LONG width;
2382 LONG height;
2383 WORD bpp;
2384 DWORD compr;
2385
2386 if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
2387 {
2388 WARN_(resource)("Invalid bitmap\n");
2389 return;
2390 }
2391
2392 if (bpp > 8) return;
2393
2394 if (bitmap_type == 0) /* BITMAPCOREHEADER */
2395 {
2396 incr = 3;
2397 colors = 1 << bpp;
2398 }
2399 else
2400 {
2401 incr = 4;
2402 colors = bmi->bmiHeader.biClrUsed;
2403 if (colors > 256) colors = 256;
2404 if (!colors && (bpp <= 8)) colors = 1 << bpp;
2405 }
2406
2407 c_W = GetSysColor(COLOR_WINDOW);
2408 c_S = GetSysColor(COLOR_3DSHADOW);
2409 c_F = GetSysColor(COLOR_3DFACE);
2410 c_L = GetSysColor(COLOR_3DLIGHT);
2411
2412 if (loadflags & LR_LOADTRANSPARENT) {
2413 switch (bpp) {
2414 case 1: pix = pix >> 7; break;
2415 case 4: pix = pix >> 4; break;
2416 case 8: break;
2417 default:
2418 WARN_(resource)("(%d): Unsupported depth\n", bpp);
2419 return;
2420 }
2421 if (pix >= colors) {
2422 WARN_(resource)("pixel has color index greater than biClrUsed!\n");
2423 return;
2424 }
2425 if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
2426 ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
2427 ptr->rgbBlue = GetBValue(c_W);
2428 ptr->rgbGreen = GetGValue(c_W);
2429 ptr->rgbRed = GetRValue(c_W);
2430 }
2431 if (loadflags & LR_LOADMAP3DCOLORS)
2432 for (i=0; i<colors; i++) {
2433 ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
2434 c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
2435 if (c_C == RGB(128, 128, 128)) {
2436 ptr->rgbRed = GetRValue(c_S);
2437 ptr->rgbGreen = GetGValue(c_S);
2438 ptr->rgbBlue = GetBValue(c_S);
2439 } else if (c_C == RGB(192, 192, 192)) {
2440 ptr->rgbRed = GetRValue(c_F);
2441 ptr->rgbGreen = GetGValue(c_F);
2442 ptr->rgbBlue = GetBValue(c_F);
2443 } else if (c_C == RGB(223, 223, 223)) {
2444 ptr->rgbRed = GetRValue(c_L);
2445 ptr->rgbGreen = GetGValue(c_L);
2446 ptr->rgbBlue = GetBValue(c_L);
2447 }
2448 }
2449 }
2450
2451
2452 /**********************************************************************
2453 * BITMAP_Load
2454 */
2455 static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
2456 INT desiredx, INT desiredy, UINT loadflags )
2457 {
2458 HBITMAP hbitmap = 0, orig_bm;
2459 HRSRC hRsrc;
2460 HGLOBAL handle;
2461 char *ptr = NULL;
2462 BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL;
2463 int size;
2464 BYTE pix;
2465 char *bits;
2466 LONG width, height, new_width, new_height;
2467 WORD bpp_dummy;
2468 DWORD compr_dummy, offbits = 0;
2469 INT bm_type;
2470 HDC screen_mem_dc = NULL;
2471
2472 if (!(loadflags & LR_LOADFROMFILE))
2473 {
2474 if (!instance)
2475 {
2476 /* OEM bitmap: try to load the resource from user32.dll */
2477 instance = user32_module;
2478 }
2479
2480 if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
2481 if (!(handle = LoadResource( instance, hRsrc ))) return 0;
2482
2483 if ((info = LockResource( handle )) == NULL) return 0;
2484 }
2485 else
2486 {
2487 BITMAPFILEHEADER * bmfh;
2488
2489 if (!(ptr = map_fileW( name, NULL ))) return 0;
2490 info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
2491 bmfh = (BITMAPFILEHEADER *)ptr;
2492 if (bmfh->bfType != 0x4d42 /* 'BM' */)
2493 {
2494 WARN("Invalid/unsupported bitmap format!\n");
2495 goto end;
2496 }
2497 if (bmfh->bfOffBits) offbits = bmfh->bfOffBits - sizeof(BITMAPFILEHEADER);
2498 }
2499
2500 bm_type = DIB_GetBitmapInfo( &info->bmiHeader, &width, &height,
2501 &bpp_dummy, &compr_dummy);
2502 if (bm_type == -1)
2503 {
2504 WARN("Invalid bitmap format!\n");
2505 goto end;
2506 }
2507
2508 size = bitmap_info_size(info, DIB_RGB_COLORS);
2509 fix_info = HeapAlloc(GetProcessHeap(), 0, size);
2510 scaled_info = HeapAlloc(GetProcessHeap(), 0, size);
2511
2512 if (!fix_info || !scaled_info) goto end;
2513 memcpy(fix_info, info, size);
2514
2515 pix = *((LPBYTE)info + size);
2516 DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
2517
2518 memcpy(scaled_info, fix_info, size);
2519
2520 if(desiredx != 0)
2521 new_width = desiredx;
2522 else
2523 new_width = width;
2524
2525 if(desiredy != 0)
2526 new_height = height > 0 ? desiredy : -desiredy;
2527 else
2528 new_height = height;
2529
2530 if(bm_type == 0)
2531 {
2532 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader;
2533 core->bcWidth = new_width;
2534 core->bcHeight = new_height;
2535 }
2536 else
2537 {
2538 /* Some sanity checks for BITMAPINFO (not applicable to BITMAPCOREINFO) */
2539 if (info->bmiHeader.biHeight > 65535 || info->bmiHeader.biWidth > 65535) {
2540 WARN("Broken BitmapInfoHeader!\n");
2541 goto end;
2542 }
2543
2544 scaled_info->bmiHeader.biWidth = new_width;
2545 scaled_info->bmiHeader.biHeight = new_height;
2546 }
2547
2548 if (new_height < 0) new_height = -new_height;
2549
2550 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2551 if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end;
2552
2553 bits = (char *)info + (offbits ? offbits : size);
2554
2555 if (loadflags & LR_CREATEDIBSECTION)
2556 {
2557 scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
2558 hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0);
2559 }
2560 else
2561 {
2562 if (is_dib_monochrome(fix_info))
2563 hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL);
2564 else
2565 hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height);
2566 }
2567
2568 orig_bm = SelectObject(screen_mem_dc, hbitmap);
2569 StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
2570 SelectObject(screen_mem_dc, orig_bm);
2571
2572 end:
2573 if (screen_mem_dc) DeleteDC(screen_mem_dc);
2574 HeapFree(GetProcessHeap(), 0, scaled_info);
2575 HeapFree(GetProcessHeap(), 0, fix_info);
2576 if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
2577
2578 return hbitmap;
2579 }
2580
2581 /**********************************************************************
2582 * LoadImageA (USER32.@)
2583 *
2584 * See LoadImageW.
2585 */
2586 HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
2587 INT desiredx, INT desiredy, UINT loadflags)
2588 {
2589 HANDLE res;
2590 LPWSTR u_name;
2591
2592 if (IS_INTRESOURCE(name))
2593 return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
2594
2595 __TRY {
2596 DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2597 u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
2598 MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
2599 }
2600 __EXCEPT_PAGE_FAULT {
2601 SetLastError( ERROR_INVALID_PARAMETER );
2602 return 0;
2603 }
2604 __ENDTRY
2605 res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
2606 HeapFree(GetProcessHeap(), 0, u_name);
2607 return res;
2608 }
2609
2610
2611 /******************************************************************************
2612 * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
2613 *
2614 * PARAMS
2615 * hinst [I] Handle of instance that contains image
2616 * name [I] Name of image
2617 * type [I] Type of image
2618 * desiredx [I] Desired width
2619 * desiredy [I] Desired height
2620 * loadflags [I] Load flags
2621 *
2622 * RETURNS
2623 * Success: Handle to newly loaded image
2624 * Failure: NULL
2625 *
2626 * FIXME: Implementation lacks some features, see LR_ defines in winuser.h
2627 */
2628 HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
2629 INT desiredx, INT desiredy, UINT loadflags )
2630 {
2631 TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n",
2632 hinst,debugstr_w(name),type,desiredx,desiredy,loadflags);
2633
2634 if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
2635 switch (type) {
2636 case IMAGE_BITMAP:
2637 return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags );
2638
2639 case IMAGE_ICON:
2640 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2641 if (screen_dc)
2642 {
2643 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2644 GetDeviceCaps(screen_dc, BITSPIXEL),
2645 FALSE, loadflags);
2646 }
2647 break;
2648
2649 case IMAGE_CURSOR:
2650 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2651 1, TRUE, loadflags);
2652 }
2653 return 0;
2654 }
2655
2656 /******************************************************************************
2657 * CopyImage (USER32.@) Creates new image and copies attributes to it
2658 *
2659 * PARAMS
2660 * hnd [I] Handle to image to copy
2661 * type [I] Type of image to copy
2662 * desiredx [I] Desired width of new image
2663 * desiredy [I] Desired height of new image
2664 * flags [I] Copy flags
2665 *
2666 * RETURNS
2667 * Success: Handle to newly created image
2668 * Failure: NULL
2669 *
2670 * BUGS
2671 * Only Windows NT 4.0 supports the LR_COPYRETURNORG flag for bitmaps,
2672 * all other versions (95/2000/XP have been tested) ignore it.
2673 *
2674 * NOTES
2675 * If LR_CREATEDIBSECTION is absent, the copy will be monochrome for
2676 * a monochrome source bitmap or if LR_MONOCHROME is present, otherwise
2677 * the copy will have the same depth as the screen.
2678 * The content of the image will only be copied if the bit depth of the
2679 * original image is compatible with the bit depth of the screen, or
2680 * if the source is a DIB section.
2681 * The LR_MONOCHROME flag is ignored if LR_CREATEDIBSECTION is present.
2682 */
2683 HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
2684 INT desiredy, UINT flags )
2685 {
2686 TRACE("hnd=%p, type=%u, desiredx=%d, desiredy=%d, flags=%x\n",
2687 hnd, type, desiredx, desiredy, flags);
2688
2689 switch (type)
2690 {
2691 case IMAGE_BITMAP:
2692 {
2693 HBITMAP res = NULL;
2694 DIBSECTION ds;
2695 int objSize;
2696 BITMAPINFO * bi;
2697
2698 objSize = GetObjectW( hnd, sizeof(ds), &ds );
2699 if (!objSize) return 0;
2700 if ((desiredx < 0) || (desiredy < 0)) return 0;
2701
2702 if (flags & LR_COPYFROMRESOURCE)
2703 {
2704 FIXME("The flag LR_COPYFROMRESOURCE is not implemented for bitmaps\n");
2705 }
2706
2707 if (desiredx == 0) desiredx = ds.dsBm.bmWidth;
2708 if (desiredy == 0) desiredy = ds.dsBm.bmHeight;
2709
2710 /* Allocate memory for a BITMAPINFOHEADER structure and a
2711 color table. The maximum number of colors in a color table
2712 is 256 which corresponds to a bitmap with depth 8.
2713 Bitmaps with higher depths don't have color tables. */
2714 bi = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
2715 if (!bi) return 0;
2716
2717 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2718 bi->bmiHeader.biPlanes = ds.dsBm.bmPlanes;
2719 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2720 bi->bmiHeader.biCompression = BI_RGB;
2721
2722 if (flags & LR_CREATEDIBSECTION)
2723 {
2724 /* Create a DIB section. LR_MONOCHROME is ignored */
2725 void * bits;
2726 HDC dc = CreateCompatibleDC(NULL);
2727
2728 if (objSize == sizeof(DIBSECTION))
2729 {
2730 /* The source bitmap is a DIB.
2731 Get its attributes to create an exact copy */
2732 memcpy(bi, &ds.dsBmih, sizeof(BITMAPINFOHEADER));
2733 }
2734
2735 /* Get the color table or the color masks */
2736 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2737
2738 bi->bmiHeader.biWidth = desiredx;
2739 bi->bmiHeader.biHeight = desiredy;
2740 bi->bmiHeader.biSizeImage = 0;
2741
2742 res = CreateDIBSection(dc, bi, DIB_RGB_COLORS, &bits, NULL, 0);
2743 DeleteDC(dc);
2744 }
2745 else
2746 {
2747 /* Create a device-dependent bitmap */
2748
2749 BOOL monochrome = (flags & LR_MONOCHROME);
2750
2751 if (objSize == sizeof(DIBSECTION))
2752 {
2753 /* The source bitmap is a DIB section.
2754 Get its attributes */
2755 HDC dc = CreateCompatibleDC(NULL);
2756 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2757 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2758 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2759 DeleteDC(dc);
2760
2761 if (!monochrome && ds.dsBm.bmBitsPixel == 1)
2762 {
2763 /* Look if the colors of the DIB are black and white */
2764
2765 monochrome =
2766 (bi->bmiColors[0].rgbRed == 0xff
2767 && bi->bmiColors[0].rgbGreen == 0xff
2768 && bi->bmiColors[0].rgbBlue == 0xff
2769 && bi->bmiColors[0].rgbReserved == 0
2770 && bi->bmiColors[1].rgbRed == 0
2771 && bi->bmiColors[1].rgbGreen == 0
2772 && bi->bmiColors[1].rgbBlue == 0
2773 && bi->bmiColors[1].rgbReserved == 0)
2774 ||
2775 (bi->bmiColors[0].rgbRed == 0
2776 && bi->bmiColors[0].rgbGreen == 0
2777 && bi->bmiColors[0].rgbBlue == 0
2778 && bi->bmiColors[0].rgbReserved == 0
2779 && bi->bmiColors[1].rgbRed == 0xff
2780 && bi->bmiColors[1].rgbGreen == 0xff
2781 && bi->bmiColors[1].rgbBlue == 0xff
2782 && bi->bmiColors[1].rgbReserved == 0);
2783 }
2784 }
2785 else if (!monochrome)
2786 {
2787 monochrome = ds.dsBm.bmBitsPixel == 1;
2788 }
2789
2790 if (monochrome)
2791 {
2792 res = CreateBitmap(desiredx, desiredy, 1, 1, NULL);
2793 }
2794 else
2795 {
2796 HDC screenDC = GetDC(NULL);
2797 res = CreateCompatibleBitmap(screenDC, desiredx, desiredy);
2798 ReleaseDC(NULL, screenDC);
2799 }
2800 }
2801
2802 if (res)
2803 {
2804 /* Only copy the bitmap if it's a DIB section or if it's
2805 compatible to the screen */
2806 BOOL copyContents;
2807
2808 if (objSize == sizeof(DIBSECTION))
2809 {
2810 copyContents = TRUE;
2811 }
2812 else
2813 {
2814 HDC screenDC = GetDC(NULL);
2815 int screen_depth = GetDeviceCaps(screenDC, BITSPIXEL);
2816 ReleaseDC(NULL, screenDC);
2817
2818 copyContents = (ds.dsBm.bmBitsPixel == 1 || ds.dsBm.bmBitsPixel == screen_depth);
2819 }
2820
2821 if (copyContents)
2822 {
2823 /* The source bitmap may already be selected in a device context,
2824 use GetDIBits/StretchDIBits and not StretchBlt */
2825
2826 HDC dc;
2827 void * bits;
2828
2829 dc = CreateCompatibleDC(NULL);
2830
2831 bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
2832 bi->bmiHeader.biHeight = ds.dsBm.bmHeight;
2833 bi->bmiHeader.biSizeImage = 0;
2834 bi->bmiHeader.biClrUsed = 0;
2835 bi->bmiHeader.biClrImportant = 0;
2836
2837 /* Fill in biSizeImage */
2838 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2839 bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, bi->bmiHeader.biSizeImage);
2840
2841 if (bits)
2842 {
2843 HBITMAP oldBmp;
2844
2845 /* Get the image bits of the source bitmap */
2846 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, bits, bi, DIB_RGB_COLORS);
2847
2848 /* Copy it to the destination bitmap */
2849 oldBmp = SelectObject(dc, res);
2850 StretchDIBits(dc, 0, 0, desiredx, desiredy,
2851 0, 0, ds.dsBm.bmWidth, ds.dsBm.bmHeight,
2852 bits, bi, DIB_RGB_COLORS, SRCCOPY);
2853 SelectObject(dc, oldBmp);
2854
2855 HeapFree(GetProcessHeap(), 0, bits);
2856 }
2857
2858 DeleteDC(dc);
2859 }
2860
2861 if (flags & LR_COPYDELETEORG)
2862 {
2863 DeleteObject(hnd);
2864 }
2865 }
2866 HeapFree(GetProcessHeap(), 0, bi);
2867 return res;
2868 }
2869 case IMAGE_ICON:
2870 case IMAGE_CURSOR:
2871 {
2872 struct cursoricon_object *icon;
2873 HICON res = 0;
2874 int depth = (flags & LR_MONOCHROME) ? 1 : GetDeviceCaps( screen_dc, BITSPIXEL );
2875
2876 if (flags & LR_DEFAULTSIZE)
2877 {
2878 if (!desiredx) desiredx = GetSystemMetrics( type == IMAGE_ICON ? SM_CXICON : SM_CXCURSOR );
2879 if (!desiredy) desiredy = GetSystemMetrics( type == IMAGE_ICON ? SM_CYICON : SM_CYCURSOR );
2880 }
2881
2882 if (!(icon = get_icon_ptr( hnd ))) return 0;
2883
2884 if (icon->rsrc && (flags & LR_COPYFROMRESOURCE))
2885 res = CURSORICON_Load( icon->module, icon->resname, desiredx, desiredy, depth,
2886 type == IMAGE_CURSOR, flags );
2887 else
2888 res = CopyIcon( hnd ); /* FIXME: change size if necessary */
2889 release_icon_ptr( hnd, icon );
2890
2891 if (res && (flags & LR_COPYDELETEORG)) DeleteObject( hnd );
2892 return res;
2893 }
2894 }
2895 return 0;
2896 }
2897
2898
2899 /******************************************************************************
2900 * LoadBitmapW (USER32.@) Loads bitmap from the executable file
2901 *
2902 * RETURNS
2903 * Success: Handle to specified bitmap
2904 * Failure: NULL
2905 */
2906 HBITMAP WINAPI LoadBitmapW(
2907 HINSTANCE instance, /* [in] Handle to application instance */
2908 LPCWSTR name) /* [in] Address of bitmap resource name */
2909 {
2910 return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2911 }
2912
2913 /**********************************************************************
2914 * LoadBitmapA (USER32.@)
2915 *
2916 * See LoadBitmapW.
2917 */
2918 HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
2919 {
2920 return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2921 }
Windows API implementation