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user32: Prefer loading color cursors in LoadImage.
[wine.git] / dlls / user32 / cursoricon.c
blobdf11f56f00a46dfa2ba3c7e376ac93aff681b1c4
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 bmi->bmiHeader.biCompression != BI_BITFIELDS)) )
818 {
819 WARN_(cursor)("\tinvalid resource bitmap header.\n");
820 return 0;
821 }
822
823 if (cFlag & LR_DEFAULTSIZE)
824 {
825 if (!width) width = GetSystemMetrics( bIcon ? SM_CXICON : SM_CXCURSOR );
826 if (!height) height = GetSystemMetrics( bIcon ? SM_CYICON : SM_CYCURSOR );
827 }
828 else
829 {
830 if (!width) width = bmi->bmiHeader.biWidth;
831 if (!height) height = bmi->bmiHeader.biHeight/2;
832 }
833 do_stretch = (bmi->bmiHeader.biHeight/2 != height) ||
834 (bmi->bmiHeader.biWidth != width);
835
836 /* Scale the hotspot */
837 if (bIcon)
838 {
839 hotspot.x = width / 2;
840 hotspot.y = height / 2;
841 }
842 else if (do_stretch)
843 {
844 hotspot.x = (hotspot.x * width) / bmi->bmiHeader.biWidth;
845 hotspot.y = (hotspot.y * height) / (bmi->bmiHeader.biHeight / 2);
846 }
847
848 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
849 if (!screen_dc) return 0;
850
851 if (!(bmi_copy = HeapAlloc( GetProcessHeap(), 0, max( size, FIELD_OFFSET( BITMAPINFO, bmiColors[2] )))))
852 return 0;
853 if (!(hdc = CreateCompatibleDC( 0 ))) goto done;
854
855 memcpy( bmi_copy, bmi, size );
856 bmi_copy->bmiHeader.biHeight /= 2;
857
858 color_bits = (const char*)bmi + size;
859 mask_bits = (const char*)color_bits +
860 get_dib_image_size( bmi->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight, bmi->bmiHeader.biBitCount );
861
862 alpha = 0;
863 if (monochrome)
864 {
865 if (!(mask = CreateBitmap( width, height * 2, 1, 1, NULL ))) goto done;
866 color = 0;
867
868 /* copy color data into second half of mask bitmap */
869 SelectObject( hdc, mask );
870 StretchDIBits( hdc, 0, height, width, height,
871 0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
872 color_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
873 }
874 else
875 {
876 if (!(mask = CreateBitmap( width, height, 1, 1, NULL ))) goto done;
877 if (!(color = CreateBitmap( width, height, GetDeviceCaps( screen_dc, PLANES ),
878 GetDeviceCaps( screen_dc, BITSPIXEL ), NULL )))
879 {
880 DeleteObject( mask );
881 goto done;
882 }
883 SelectObject( hdc, color );
884 StretchDIBits( hdc, 0, 0, width, height,
885 0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
886 color_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
887
888 if (bmi_has_alpha( bmi_copy, color_bits ))
889 alpha = create_alpha_bitmap( color, mask, bmi_copy, color_bits );
890
891 /* convert info to monochrome to copy the mask */
892 bmi_copy->bmiHeader.biBitCount = 1;
893 if (bmi_copy->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
894 {
895 RGBQUAD *rgb = bmi_copy->bmiColors;
896
897 bmi_copy->bmiHeader.biClrUsed = bmi_copy->bmiHeader.biClrImportant = 2;
898 rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
899 rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
900 rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
901 }
902 else
903 {
904 RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)bmi_copy) + 1);
905
906 rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
907 rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
908 }
909 }
910
911 SelectObject( hdc, mask );
912 StretchDIBits( hdc, 0, 0, width, height,
913 0, 0, bmi_copy->bmiHeader.biWidth, bmi_copy->bmiHeader.biHeight,
914 mask_bits, bmi_copy, DIB_RGB_COLORS, SRCCOPY );
915 ret = TRUE;
916
917 done:
918 DeleteDC( hdc );
919 HeapFree( GetProcessHeap(), 0, bmi_copy );
920
921 if (ret)
922 hObj = alloc_icon_handle( FALSE, 1 );
923 if (hObj)
924 {
925 struct cursoricon_object *info = get_icon_ptr( hObj );
926 struct cursoricon_frame *frame;
927
928 info->is_icon = bIcon;
929 info->module = module;
930 info->hotspot = hotspot;
931 frame = get_icon_frame( info, 0 );
932 frame->delay = ~0;
933 frame->width = width;
934 frame->height = height;
935 frame->color = color;
936 frame->mask = mask;
937 frame->alpha = alpha;
938 release_icon_frame( info, 0, frame );
939 if (!IS_INTRESOURCE(resname))
940 {
941 info->resname = HeapAlloc( GetProcessHeap(), 0, (strlenW(resname) + 1) * sizeof(WCHAR) );
942 if (info->resname) strcpyW( info->resname, resname );
943 }
944 else info->resname = MAKEINTRESOURCEW( LOWORD(resname) );
945
946 if (module && (cFlag & LR_SHARED))
947 {
948 info->rsrc = rsrc;
949 list_add_head( &icon_cache, &info->entry );
950 }
951 release_icon_ptr( hObj, info );
952 USER_Driver->pCreateCursorIcon( hObj );
953 }
954 else
955 {
956 DeleteObject( color );
957 DeleteObject( alpha );
958 DeleteObject( mask );
959 }
960 return hObj;
961 }
962
963
964 /**********************************************************************
965 * .ANI cursor support
966 */
967 #define RIFF_FOURCC( c0, c1, c2, c3 ) \
968 ( (DWORD)(BYTE)(c0) | ( (DWORD)(BYTE)(c1) << 8 ) | \
969 ( (DWORD)(BYTE)(c2) << 16 ) | ( (DWORD)(BYTE)(c3) << 24 ) )
970
971 #define ANI_RIFF_ID RIFF_FOURCC('R', 'I', 'F', 'F')
972 #define ANI_LIST_ID RIFF_FOURCC('L', 'I', 'S', 'T')
973 #define ANI_ACON_ID RIFF_FOURCC('A', 'C', 'O', 'N')
974 #define ANI_anih_ID RIFF_FOURCC('a', 'n', 'i', 'h')
975 #define ANI_seq__ID RIFF_FOURCC('s', 'e', 'q', ' ')
976 #define ANI_fram_ID RIFF_FOURCC('f', 'r', 'a', 'm')
977 #define ANI_rate_ID RIFF_FOURCC('r', 'a', 't', 'e')
978
979 #define ANI_FLAG_ICON 0x1
980 #define ANI_FLAG_SEQUENCE 0x2
981
982 typedef struct {
983 DWORD header_size;
984 DWORD num_frames;
985 DWORD num_steps;
986 DWORD width;
987 DWORD height;
988 DWORD bpp;
989 DWORD num_planes;
990 DWORD display_rate;
991 DWORD flags;
992 } ani_header;
993
994 typedef struct {
995 DWORD data_size;
996 const unsigned char *data;
997 } riff_chunk_t;
998
999 static void dump_ani_header( const ani_header *header )
1000 {
1001 TRACE(" header size: %d\n", header->header_size);
1002 TRACE(" frames: %d\n", header->num_frames);
1003 TRACE(" steps: %d\n", header->num_steps);
1004 TRACE(" width: %d\n", header->width);
1005 TRACE(" height: %d\n", header->height);
1006 TRACE(" bpp: %d\n", header->bpp);
1007 TRACE(" planes: %d\n", header->num_planes);
1008 TRACE(" display rate: %d\n", header->display_rate);
1009 TRACE(" flags: 0x%08x\n", header->flags);
1010 }
1011
1012
1013 /*
1014 * RIFF:
1015 * DWORD "RIFF"
1016 * DWORD size
1017 * DWORD riff_id
1018 * BYTE[] data
1019 *
1020 * LIST:
1021 * DWORD "LIST"
1022 * DWORD size
1023 * DWORD list_id
1024 * BYTE[] data
1025 *
1026 * CHUNK:
1027 * DWORD chunk_id
1028 * DWORD size
1029 * BYTE[] data
1030 */
1031 static void riff_find_chunk( DWORD chunk_id, DWORD chunk_type, const riff_chunk_t *parent_chunk, riff_chunk_t *chunk )
1032 {
1033 const unsigned char *ptr = parent_chunk->data;
1034 const unsigned char *end = parent_chunk->data + (parent_chunk->data_size - (2 * sizeof(DWORD)));
1035
1036 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) end -= sizeof(DWORD);
1037
1038 while (ptr < end)
1039 {
1040 if ((!chunk_type && *(const DWORD *)ptr == chunk_id )
1041 || (chunk_type && *(const DWORD *)ptr == chunk_type && *((const DWORD *)ptr + 2) == chunk_id ))
1042 {
1043 ptr += sizeof(DWORD);
1044 chunk->data_size = (*(const DWORD *)ptr + 1) & ~1;
1045 ptr += sizeof(DWORD);
1046 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) ptr += sizeof(DWORD);
1047 chunk->data = ptr;
1048
1049 return;
1050 }
1051
1052 ptr += sizeof(DWORD);
1053 ptr += (*(const DWORD *)ptr + 1) & ~1;
1054 ptr += sizeof(DWORD);
1055 }
1056 }
1057
1058
1059 /*
1060 * .ANI layout:
1061 *
1062 * RIFF:'ACON' RIFF chunk
1063 * |- CHUNK:'anih' Header
1064 * |- CHUNK:'seq ' Sequence information (optional)
1065 * \- LIST:'fram' Frame list
1066 * |- CHUNK:icon Cursor frames
1067 * |- CHUNK:icon
1068 * |- ...
1069 * \- CHUNK:icon
1070 */
1071 static HCURSOR CURSORICON_CreateIconFromANI( const LPBYTE bits, DWORD bits_size, INT width, INT height,
1072 INT depth, BOOL is_icon, UINT loadflags )
1073 {
1074 struct animated_cursoricon_object *ani_icon_data;
1075 struct cursoricon_object *info;
1076 DWORD *frame_rates = NULL;
1077 DWORD *frame_seq = NULL;
1078 ani_header header = {0};
1079 BOOL use_seq = FALSE;
1080 HCURSOR cursor = 0;
1081 UINT i, error = 0;
1082 HICON *frames;
1083
1084 riff_chunk_t root_chunk = { bits_size, bits };
1085 riff_chunk_t ACON_chunk = {0};
1086 riff_chunk_t anih_chunk = {0};
1087 riff_chunk_t fram_chunk = {0};
1088 riff_chunk_t rate_chunk = {0};
1089 riff_chunk_t seq_chunk = {0};
1090 const unsigned char *icon_chunk;
1091 const unsigned char *icon_data;
1092
1093 TRACE("bits %p, bits_size %d\n", bits, bits_size);
1094
1095 riff_find_chunk( ANI_ACON_ID, ANI_RIFF_ID, &root_chunk, &ACON_chunk );
1096 if (!ACON_chunk.data)
1097 {
1098 ERR("Failed to get root chunk.\n");
1099 return 0;
1100 }
1101
1102 riff_find_chunk( ANI_anih_ID, 0, &ACON_chunk, &anih_chunk );
1103 if (!anih_chunk.data)
1104 {
1105 ERR("Failed to get 'anih' chunk.\n");
1106 return 0;
1107 }
1108 memcpy( &header, anih_chunk.data, sizeof(header) );
1109 dump_ani_header( &header );
1110
1111 if (!(header.flags & ANI_FLAG_ICON))
1112 {
1113 FIXME("Raw animated icon/cursor data is not currently supported.\n");
1114 return 0;
1115 }
1116
1117 if (header.flags & ANI_FLAG_SEQUENCE)
1118 {
1119 riff_find_chunk( ANI_seq__ID, 0, &ACON_chunk, &seq_chunk );
1120 if (seq_chunk.data)
1121 {
1122 frame_seq = (DWORD *) seq_chunk.data;
1123 use_seq = TRUE;
1124 }
1125 else
1126 {
1127 FIXME("Sequence data expected but not found, assuming steps == frames.\n");
1128 header.num_steps = header.num_frames;
1129 }
1130 }
1131
1132 riff_find_chunk( ANI_rate_ID, 0, &ACON_chunk, &rate_chunk );
1133 if (rate_chunk.data)
1134 frame_rates = (DWORD *) rate_chunk.data;
1135
1136 riff_find_chunk( ANI_fram_ID, ANI_LIST_ID, &ACON_chunk, &fram_chunk );
1137 if (!fram_chunk.data)
1138 {
1139 ERR("Failed to get icon list.\n");
1140 return 0;
1141 }
1142
1143 cursor = alloc_icon_handle( TRUE, header.num_steps );
1144 if (!cursor) return 0;
1145 frames = HeapAlloc( GetProcessHeap(), 0, sizeof(DWORD)*header.num_frames );
1146 if (!frames)
1147 {
1148 free_icon_handle( cursor );
1149 return 0;
1150 }
1151
1152 info = get_icon_ptr( cursor );
1153 ani_icon_data = (struct animated_cursoricon_object *) info;
1154 info->is_icon = is_icon;
1155 ani_icon_data->num_frames = header.num_frames;
1156
1157 /* The .ANI stores the display rate in jiffies (1/60s) */
1158 info->delay = header.display_rate;
1159
1160 icon_chunk = fram_chunk.data;
1161 icon_data = fram_chunk.data + (2 * sizeof(DWORD));
1162 for (i=0; i<header.num_frames; i++)
1163 {
1164 const DWORD chunk_size = *(const DWORD *)(icon_chunk + sizeof(DWORD));
1165 const CURSORICONFILEDIRENTRY *entry;
1166 INT frameWidth, frameHeight;
1167 const BITMAPINFO *bmi;
1168
1169 entry = CURSORICON_FindBestIconFile((const CURSORICONFILEDIR *) icon_data,
1170 bits + bits_size - icon_data,
1171 width, height, depth, loadflags );
1172
1173 bmi = (const BITMAPINFO *) (icon_data + entry->dwDIBOffset);
1174 info->hotspot.x = entry->xHotspot;
1175 info->hotspot.y = entry->yHotspot;
1176 if (!header.width || !header.height)
1177 {
1178 frameWidth = entry->bWidth;
1179 frameHeight = entry->bHeight;
1180 }
1181 else
1182 {
1183 frameWidth = header.width;
1184 frameHeight = header.height;
1185 }
1186
1187 /* Grab a frame from the animation */
1188 frames[i] = create_icon_from_bmi( (BITMAPINFO *)bmi, NULL, NULL, NULL, info->hotspot,
1189 is_icon, frameWidth, frameHeight, loadflags );
1190 if (!frames[i])
1191 {
1192 FIXME_(cursor)("failed to convert animated cursor frame.\n");
1193 error = TRUE;
1194 if (i == 0)
1195 {
1196 FIXME_(cursor)("Completely failed to create animated cursor!\n");
1197 ani_icon_data->num_frames = 0;
1198 release_icon_ptr( cursor, info );
1199 free_icon_handle( cursor );
1200 HeapFree( GetProcessHeap(), 0, frames );
1201 return 0;
1202 }
1203 break;
1204 }
1205
1206 /* Advance to the next chunk */
1207 icon_chunk += chunk_size + (2 * sizeof(DWORD));
1208 icon_data = icon_chunk + (2 * sizeof(DWORD));
1209 }
1210
1211 /* There was an error but we at least decoded the first frame, so just use that frame */
1212 if (error)
1213 {
1214 FIXME_(cursor)("Error creating animated cursor, only using first frame!\n");
1215 for (i=1; i<ani_icon_data->num_frames; i++)
1216 free_icon_handle( ani_icon_data->frames[i] );
1217 use_seq = FALSE;
1218 info->delay = 0;
1219 ani_icon_data->num_steps = 1;
1220 ani_icon_data->num_frames = 1;
1221 }
1222
1223 /* Setup the animated frames in the correct sequence */
1224 for (i=0; i<ani_icon_data->num_steps; i++)
1225 {
1226 DWORD frame_id = use_seq ? frame_seq[i] : i;
1227 struct cursoricon_frame *frame;
1228
1229 if (frame_id >= ani_icon_data->num_frames)
1230 {
1231 frame_id = ani_icon_data->num_frames-1;
1232 ERR_(cursor)("Sequence indicates frame past end of list, corrupt?\n");
1233 }
1234 ani_icon_data->frames[i] = frames[frame_id];
1235 frame = get_icon_frame( info, i );
1236 if (frame_rates)
1237 frame->delay = frame_rates[i];
1238 else
1239 frame->delay = ~0;
1240 release_icon_frame( info, i, frame );
1241 }
1242
1243 HeapFree( GetProcessHeap(), 0, frames );
1244 release_icon_ptr( cursor, info );
1245
1246 return cursor;
1247 }
1248
1249
1250 /**********************************************************************
1251 * CreateIconFromResourceEx (USER32.@)
1252 *
1253 * FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
1254 * with cbSize parameter as well.
1255 */
1256 HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
1257 BOOL bIcon, DWORD dwVersion,
1258 INT width, INT height,
1259 UINT cFlag )
1260 {
1261 POINT hotspot;
1262 BITMAPINFO *bmi;
1263
1264 TRACE_(cursor)("%p (%u bytes), ver %08x, %ix%i %s %s\n",
1265 bits, cbSize, dwVersion, width, height,
1266 bIcon ? "icon" : "cursor", (cFlag & LR_MONOCHROME) ? "mono" : "" );
1267
1268 if (!bits) return 0;
1269
1270 if (dwVersion == 0x00020000)
1271 {
1272 FIXME_(cursor)("\t2.xx resources are not supported\n");
1273 return 0;
1274 }
1275
1276 /* Check if the resource is an animated icon/cursor */
1277 if (!memcmp(bits, "RIFF", 4))
1278 return CURSORICON_CreateIconFromANI( bits, cbSize, width, height,
1279 0 /* default depth */, bIcon, cFlag );
1280
1281 if (bIcon)
1282 {
1283 hotspot.x = width / 2;
1284 hotspot.y = height / 2;
1285 bmi = (BITMAPINFO *)bits;
1286 }
1287 else /* get the hotspot */
1288 {
1289 SHORT *pt = (SHORT *)bits;
1290 hotspot.x = pt[0];
1291 hotspot.y = pt[1];
1292 bmi = (BITMAPINFO *)(pt + 2);
1293 }
1294
1295 return create_icon_from_bmi( bmi, NULL, NULL, NULL, hotspot, bIcon, width, height, cFlag );
1296 }
1297
1298
1299 /**********************************************************************
1300 * CreateIconFromResource (USER32.@)
1301 */
1302 HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize,
1303 BOOL bIcon, DWORD dwVersion)
1304 {
1305 return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
1306 }
1307
1308
1309 static HICON CURSORICON_LoadFromFile( LPCWSTR filename,
1310 INT width, INT height, INT depth,
1311 BOOL fCursor, UINT loadflags)
1312 {
1313 const CURSORICONFILEDIRENTRY *entry;
1314 const CURSORICONFILEDIR *dir;
1315 DWORD filesize = 0;
1316 HICON hIcon = 0;
1317 LPBYTE bits;
1318 POINT hotspot;
1319
1320 TRACE("loading %s\n", debugstr_w( filename ));
1321
1322 bits = map_fileW( filename, &filesize );
1323 if (!bits)
1324 return hIcon;
1325
1326 /* Check for .ani. */
1327 if (memcmp( bits, "RIFF", 4 ) == 0)
1328 {
1329 hIcon = CURSORICON_CreateIconFromANI( bits, filesize, width, height, depth, !fCursor, loadflags );
1330 goto end;
1331 }
1332
1333 dir = (const CURSORICONFILEDIR*) bits;
1334 if ( filesize < FIELD_OFFSET( CURSORICONFILEDIR, idEntries[dir->idCount] ))
1335 goto end;
1336
1337 if ( fCursor )
1338 entry = CURSORICON_FindBestCursorFile( dir, filesize, width, height, depth, loadflags );
1339 else
1340 entry = CURSORICON_FindBestIconFile( dir, filesize, width, height, depth, loadflags );
1341
1342 if ( !entry )
1343 goto end;
1344
1345 /* check that we don't run off the end of the file */
1346 if ( entry->dwDIBOffset > filesize )
1347 goto end;
1348 if ( entry->dwDIBOffset + entry->dwDIBSize > filesize )
1349 goto end;
1350
1351 hotspot.x = entry->xHotspot;
1352 hotspot.y = entry->yHotspot;
1353 hIcon = create_icon_from_bmi( (BITMAPINFO *)&bits[entry->dwDIBOffset], NULL, NULL, NULL,
1354 hotspot, !fCursor, width, height, loadflags );
1355 end:
1356 TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon );
1357 UnmapViewOfFile( bits );
1358 return hIcon;
1359 }
1360
1361 /**********************************************************************
1362 * CURSORICON_Load
1363 *
1364 * Load a cursor or icon from resource or file.
1365 */
1366 static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
1367 INT width, INT height, INT depth,
1368 BOOL fCursor, UINT loadflags)
1369 {
1370 HANDLE handle = 0;
1371 HICON hIcon = 0;
1372 HRSRC hRsrc;
1373 DWORD size;
1374 const CURSORICONDIR *dir;
1375 const CURSORICONDIRENTRY *dirEntry;
1376 LPBYTE bits;
1377 WORD wResId;
1378 POINT hotspot;
1379
1380 TRACE("%p, %s, %dx%d, depth %d, fCursor %d, flags 0x%04x\n",
1381 hInstance, debugstr_w(name), width, height, depth, fCursor, loadflags);
1382
1383 if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
1384 return CURSORICON_LoadFromFile( name, width, height, depth, fCursor, loadflags );
1385
1386 if (!hInstance) hInstance = user32_module; /* Load OEM cursor/icon */
1387
1388 /* don't cache 16-bit instances (FIXME: should never get 16-bit instances in the first place) */
1389 if ((ULONG_PTR)hInstance >> 16 == 0) loadflags &= ~LR_SHARED;
1390
1391 /* Get directory resource ID */
1392
1393 if (!(hRsrc = FindResourceW( hInstance, name,
1394 (LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
1395 {
1396 /* try animated resource */
1397 if (!(hRsrc = FindResourceW( hInstance, name,
1398 (LPWSTR)(fCursor ? RT_ANICURSOR : RT_ANIICON) ))) return 0;
1399 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1400 bits = LockResource( handle );
1401 return CURSORICON_CreateIconFromANI( bits, SizeofResource( hInstance, handle ),
1402 width, height, depth, !fCursor, loadflags );
1403 }
1404
1405 /* Find the best entry in the directory */
1406
1407 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1408 if (!(dir = LockResource( handle ))) return 0;
1409 size = SizeofResource( hInstance, hRsrc );
1410 if (fCursor)
1411 dirEntry = CURSORICON_FindBestCursorRes( dir, size, width, height, depth, loadflags );
1412 else
1413 dirEntry = CURSORICON_FindBestIconRes( dir, size, width, height, depth, loadflags );
1414 if (!dirEntry) return 0;
1415 wResId = dirEntry->wResId;
1416 FreeResource( handle );
1417
1418 /* Load the resource */
1419
1420 if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
1421 (LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0;
1422
1423 /* If shared icon, check whether it was already loaded */
1424 if (loadflags & LR_SHARED)
1425 {
1426 struct cursoricon_object *ptr;
1427
1428 USER_Lock();
1429 LIST_FOR_EACH_ENTRY( ptr, &icon_cache, struct cursoricon_object, entry )
1430 {
1431 if (ptr->module != hInstance) continue;
1432 if (ptr->rsrc != hRsrc) continue;
1433 hIcon = ptr->obj.handle;
1434 break;
1435 }
1436 USER_Unlock();
1437 if (hIcon) return hIcon;
1438 }
1439
1440 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1441 bits = LockResource( handle );
1442
1443 if (!fCursor)
1444 {
1445 hotspot.x = width / 2;
1446 hotspot.y = height / 2;
1447 }
1448 else /* get the hotspot */
1449 {
1450 SHORT *pt = (SHORT *)bits;
1451 hotspot.x = pt[0];
1452 hotspot.y = pt[1];
1453 bits += 2 * sizeof(SHORT);
1454 }
1455 hIcon = create_icon_from_bmi( (BITMAPINFO *)bits, hInstance, name, hRsrc,
1456 hotspot, !fCursor, width, height, loadflags );
1457 FreeResource( handle );
1458 return hIcon;
1459 }
1460
1461
1462 /***********************************************************************
1463 * CreateCursor (USER32.@)
1464 */
1465 HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
1466 INT xHotSpot, INT yHotSpot,
1467 INT nWidth, INT nHeight,
1468 LPCVOID lpANDbits, LPCVOID lpXORbits )
1469 {
1470 ICONINFO info;
1471 HCURSOR hCursor;
1472
1473 TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
1474 nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
1475
1476 info.fIcon = FALSE;
1477 info.xHotspot = xHotSpot;
1478 info.yHotspot = yHotSpot;
1479 info.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1480 info.hbmColor = CreateBitmap( nWidth, nHeight, 1, 1, lpXORbits );
1481 hCursor = CreateIconIndirect( &info );
1482 DeleteObject( info.hbmMask );
1483 DeleteObject( info.hbmColor );
1484 return hCursor;
1485 }
1486
1487
1488 /***********************************************************************
1489 * CreateIcon (USER32.@)
1490 *
1491 * Creates an icon based on the specified bitmaps. The bitmaps must be
1492 * provided in a device dependent format and will be resized to
1493 * (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
1494 * depth. The provided bitmaps must be top-down bitmaps.
1495 * Although Windows does not support 15bpp(*) this API must support it
1496 * for Winelib applications.
1497 *
1498 * (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
1499 * format!
1500 *
1501 * RETURNS
1502 * Success: handle to an icon
1503 * Failure: NULL
1504 *
1505 * FIXME: Do we need to resize the bitmaps?
1506 */
1507 HICON WINAPI CreateIcon(
1508 HINSTANCE hInstance, /* [in] the application's hInstance */
1509 INT nWidth, /* [in] the width of the provided bitmaps */
1510 INT nHeight, /* [in] the height of the provided bitmaps */
1511 BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
1512 BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
1513 LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
1514 LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
1515 {
1516 ICONINFO iinfo;
1517 HICON hIcon;
1518
1519 TRACE_(icon)("%dx%d, planes %d, bpp %d, xor %p, and %p\n",
1520 nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits, lpANDbits);
1521
1522 iinfo.fIcon = TRUE;
1523 iinfo.xHotspot = nWidth / 2;
1524 iinfo.yHotspot = nHeight / 2;
1525 iinfo.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1526 iinfo.hbmColor = CreateBitmap( nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits );
1527
1528 hIcon = CreateIconIndirect( &iinfo );
1529
1530 DeleteObject( iinfo.hbmMask );
1531 DeleteObject( iinfo.hbmColor );
1532
1533 return hIcon;
1534 }
1535
1536
1537 /***********************************************************************
1538 * CopyIcon (USER32.@)
1539 */
1540 HICON WINAPI CopyIcon( HICON hIcon )
1541 {
1542 struct cursoricon_object *ptrOld, *ptrNew;
1543 HICON hNew;
1544
1545 if (!(ptrOld = get_icon_ptr( hIcon )))
1546 {
1547 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
1548 return 0;
1549 }
1550 if ((hNew = alloc_icon_handle( FALSE, 1 )))
1551 {
1552 struct cursoricon_frame *frameOld, *frameNew;
1553
1554 ptrNew = get_icon_ptr( hNew );
1555 ptrNew->is_icon = ptrOld->is_icon;
1556 ptrNew->hotspot = ptrOld->hotspot;
1557 if (!(frameOld = get_icon_frame( ptrOld, 0 )))
1558 {
1559 release_icon_ptr( hIcon, ptrOld );
1560 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
1561 return 0;
1562 }
1563 if (!(frameNew = get_icon_frame( ptrNew, 0 )))
1564 {
1565 release_icon_frame( ptrOld, 0, frameOld );
1566 release_icon_ptr( hIcon, ptrOld );
1567 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
1568 return 0;
1569 }
1570 frameNew->delay = 0;
1571 frameNew->width = frameOld->width;
1572 frameNew->height = frameOld->height;
1573 frameNew->mask = copy_bitmap( frameOld->mask );
1574 frameNew->color = copy_bitmap( frameOld->color );
1575 frameNew->alpha = copy_bitmap( frameOld->alpha );
1576 release_icon_frame( ptrOld, 0, frameOld );
1577 release_icon_frame( ptrNew, 0, frameNew );
1578 release_icon_ptr( hNew, ptrNew );
1579 }
1580 release_icon_ptr( hIcon, ptrOld );
1581 if (hNew) USER_Driver->pCreateCursorIcon( hNew );
1582 return hNew;
1583 }
1584
1585
1586 /***********************************************************************
1587 * DestroyIcon (USER32.@)
1588 */
1589 BOOL WINAPI DestroyIcon( HICON hIcon )
1590 {
1591 BOOL ret = FALSE;
1592 struct cursoricon_object *obj = get_icon_ptr( hIcon );
1593
1594 TRACE_(icon)("%p\n", hIcon );
1595
1596 if (obj)
1597 {
1598 BOOL shared = (obj->rsrc != NULL);
1599 release_icon_ptr( hIcon, obj );
1600 ret = (GetCursor() != hIcon);
1601 if (!shared) free_icon_handle( hIcon );
1602 }
1603 return ret;
1604 }
1605
1606
1607 /***********************************************************************
1608 * DestroyCursor (USER32.@)
1609 */
1610 BOOL WINAPI DestroyCursor( HCURSOR hCursor )
1611 {
1612 return DestroyIcon( hCursor );
1613 }
1614
1615 /***********************************************************************
1616 * DrawIcon (USER32.@)
1617 */
1618 BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
1619 {
1620 return DrawIconEx( hdc, x, y, hIcon, 0, 0, 0, 0, DI_NORMAL | DI_COMPAT | DI_DEFAULTSIZE );
1621 }
1622
1623 /***********************************************************************
1624 * SetCursor (USER32.@)
1625 *
1626 * Set the cursor shape.
1627 *
1628 * RETURNS
1629 * A handle to the previous cursor shape.
1630 */
1631 HCURSOR WINAPI DECLSPEC_HOTPATCH SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
1632 {
1633 struct cursoricon_object *obj;
1634 HCURSOR hOldCursor;
1635 int show_count;
1636 BOOL ret;
1637
1638 TRACE("%p\n", hCursor);
1639
1640 SERVER_START_REQ( set_cursor )
1641 {
1642 req->flags = SET_CURSOR_HANDLE;
1643 req->handle = wine_server_user_handle( hCursor );
1644 if ((ret = !wine_server_call_err( req )))
1645 {
1646 hOldCursor = wine_server_ptr_handle( reply->prev_handle );
1647 show_count = reply->prev_count;
1648 }
1649 }
1650 SERVER_END_REQ;
1651
1652 if (!ret) return 0;
1653 USER_Driver->pSetCursor( show_count >= 0 ? hCursor : 0 );
1654
1655 if (!(obj = get_icon_ptr( hOldCursor ))) return 0;
1656 release_icon_ptr( hOldCursor, obj );
1657 return hOldCursor;
1658 }
1659
1660 /***********************************************************************
1661 * ShowCursor (USER32.@)
1662 */
1663 INT WINAPI DECLSPEC_HOTPATCH ShowCursor( BOOL bShow )
1664 {
1665 HCURSOR cursor;
1666 int increment = bShow ? 1 : -1;
1667 int count;
1668
1669 SERVER_START_REQ( set_cursor )
1670 {
1671 req->flags = SET_CURSOR_COUNT;
1672 req->show_count = increment;
1673 wine_server_call( req );
1674 cursor = wine_server_ptr_handle( reply->prev_handle );
1675 count = reply->prev_count + increment;
1676 }
1677 SERVER_END_REQ;
1678
1679 TRACE("%d, count=%d\n", bShow, count );
1680
1681 if (bShow && !count) USER_Driver->pSetCursor( cursor );
1682 else if (!bShow && count == -1) USER_Driver->pSetCursor( 0 );
1683
1684 return count;
1685 }
1686
1687 /***********************************************************************
1688 * GetCursor (USER32.@)
1689 */
1690 HCURSOR WINAPI GetCursor(void)
1691 {
1692 HCURSOR ret;
1693
1694 SERVER_START_REQ( set_cursor )
1695 {
1696 req->flags = 0;
1697 wine_server_call( req );
1698 ret = wine_server_ptr_handle( reply->prev_handle );
1699 }
1700 SERVER_END_REQ;
1701 return ret;
1702 }
1703
1704
1705 /***********************************************************************
1706 * ClipCursor (USER32.@)
1707 */
1708 BOOL WINAPI DECLSPEC_HOTPATCH ClipCursor( const RECT *rect )
1709 {
1710 BOOL ret;
1711 RECT new_rect;
1712
1713 TRACE( "Clipping to %s\n", wine_dbgstr_rect(rect) );
1714
1715 if (rect && (rect->left > rect->right || rect->top > rect->bottom)) return FALSE;
1716
1717 SERVER_START_REQ( set_cursor )
1718 {
1719 req->clip_msg = WM_WINE_CLIPCURSOR;
1720 if (rect)
1721 {
1722 req->flags = SET_CURSOR_CLIP;
1723 req->clip.left = rect->left;
1724 req->clip.top = rect->top;
1725 req->clip.right = rect->right;
1726 req->clip.bottom = rect->bottom;
1727 }
1728 else req->flags = SET_CURSOR_NOCLIP;
1729
1730 if ((ret = !wine_server_call( req )))
1731 {
1732 new_rect.left = reply->new_clip.left;
1733 new_rect.top = reply->new_clip.top;
1734 new_rect.right = reply->new_clip.right;
1735 new_rect.bottom = reply->new_clip.bottom;
1736 }
1737 }
1738 SERVER_END_REQ;
1739 if (ret) USER_Driver->pClipCursor( &new_rect );
1740 return ret;
1741 }
1742
1743
1744 /***********************************************************************
1745 * GetClipCursor (USER32.@)
1746 */
1747 BOOL WINAPI DECLSPEC_HOTPATCH GetClipCursor( RECT *rect )
1748 {
1749 BOOL ret;
1750
1751 if (!rect) return FALSE;
1752
1753 SERVER_START_REQ( set_cursor )
1754 {
1755 req->flags = 0;
1756 if ((ret = !wine_server_call( req )))
1757 {
1758 rect->left = reply->new_clip.left;
1759 rect->top = reply->new_clip.top;
1760 rect->right = reply->new_clip.right;
1761 rect->bottom = reply->new_clip.bottom;
1762 }
1763 }
1764 SERVER_END_REQ;
1765 return ret;
1766 }
1767
1768
1769 /***********************************************************************
1770 * SetSystemCursor (USER32.@)
1771 */
1772 BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id)
1773 {
1774 FIXME("(%p,%08x),stub!\n", hcur, id);
1775 return TRUE;
1776 }
1777
1778
1779 /**********************************************************************
1780 * LookupIconIdFromDirectoryEx (USER32.@)
1781 */
1782 INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
1783 INT width, INT height, UINT cFlag )
1784 {
1785 const CURSORICONDIR *dir = (const CURSORICONDIR*)xdir;
1786 UINT retVal = 0;
1787 if( dir && !dir->idReserved && (dir->idType & 3) )
1788 {
1789 const CURSORICONDIRENTRY* entry;
1790
1791 const HDC hdc = GetDC(0);
1792 const int depth = (cFlag & LR_MONOCHROME) ?
1793 1 : GetDeviceCaps(hdc, BITSPIXEL);
1794 ReleaseDC(0, hdc);
1795
1796 if( bIcon )
1797 entry = CURSORICON_FindBestIconRes( dir, ~0u, width, height, depth, LR_DEFAULTSIZE );
1798 else
1799 entry = CURSORICON_FindBestCursorRes( dir, ~0u, width, height, depth, LR_DEFAULTSIZE );
1800
1801 if( entry ) retVal = entry->wResId;
1802 }
1803 else WARN_(cursor)("invalid resource directory\n");
1804 return retVal;
1805 }
1806
1807 /**********************************************************************
1808 * LookupIconIdFromDirectory (USER32.@)
1809 */
1810 INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
1811 {
1812 return LookupIconIdFromDirectoryEx( dir, bIcon, 0, 0, bIcon ? 0 : LR_MONOCHROME );
1813 }
1814
1815 /***********************************************************************
1816 * LoadCursorW (USER32.@)
1817 */
1818 HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
1819 {
1820 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1821
1822 return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
1823 LR_SHARED | LR_DEFAULTSIZE );
1824 }
1825
1826 /***********************************************************************
1827 * LoadCursorA (USER32.@)
1828 */
1829 HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
1830 {
1831 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1832
1833 return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
1834 LR_SHARED | LR_DEFAULTSIZE );
1835 }
1836
1837 /***********************************************************************
1838 * LoadCursorFromFileW (USER32.@)
1839 */
1840 HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
1841 {
1842 TRACE("%s\n", debugstr_w(name));
1843
1844 return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
1845 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1846 }
1847
1848 /***********************************************************************
1849 * LoadCursorFromFileA (USER32.@)
1850 */
1851 HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
1852 {
1853 TRACE("%s\n", debugstr_a(name));
1854
1855 return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
1856 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1857 }
1858
1859 /***********************************************************************
1860 * LoadIconW (USER32.@)
1861 */
1862 HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
1863 {
1864 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1865
1866 return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
1867 LR_SHARED | LR_DEFAULTSIZE );
1868 }
1869
1870 /***********************************************************************
1871 * LoadIconA (USER32.@)
1872 */
1873 HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
1874 {
1875 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1876
1877 return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
1878 LR_SHARED | LR_DEFAULTSIZE );
1879 }
1880
1881 /**********************************************************************
1882 * GetCursorFrameInfo (USER32.@)
1883 *
1884 * NOTES
1885 * So far no use has been found for the second parameter, it is currently presumed
1886 * that this parameter is reserved for future use.
1887 *
1888 * PARAMS
1889 * hCursor [I] Handle to cursor for which to retrieve information
1890 * reserved [I] No purpose has been found for this parameter (may be NULL)
1891 * istep [I] The step of the cursor for which to retrieve information
1892 * rate_jiffies [O] Pointer to DWORD that receives the frame-specific delay (cannot be NULL)
1893 * num_steps [O] Pointer to DWORD that receives the number of steps in the cursor (cannot be NULL)
1894 *
1895 * RETURNS
1896 * Success: Handle to a frame of the cursor (specified by istep)
1897 * Failure: NULL cursor (0)
1898 */
1899 HCURSOR WINAPI GetCursorFrameInfo(HCURSOR hCursor, DWORD reserved, DWORD istep, DWORD *rate_jiffies, DWORD *num_steps)
1900 {
1901 struct cursoricon_object *ptr;
1902 HCURSOR ret = 0;
1903 UINT icon_steps;
1904
1905 if (rate_jiffies == NULL || num_steps == NULL) return 0;
1906
1907 if (!(ptr = get_icon_ptr( hCursor ))) return 0;
1908
1909 TRACE("%p => %d %d %p %p\n", hCursor, reserved, istep, rate_jiffies, num_steps);
1910 if (reserved != 0)
1911 FIXME("Second parameter non-zero (%d), please report this!\n", reserved);
1912
1913 icon_steps = get_icon_steps(ptr);
1914 if (istep < icon_steps || !ptr->is_ani)
1915 {
1916 struct animated_cursoricon_object *ani_icon_data = (struct animated_cursoricon_object *) ptr;
1917 UINT icon_frames = 1;
1918
1919 if (ptr->is_ani)
1920 icon_frames = ani_icon_data->num_frames;
1921 if (ptr->is_ani && icon_frames > 1)
1922 ret = ani_icon_data->frames[istep];
1923 else
1924 ret = hCursor;
1925 if (icon_frames == 1)
1926 {
1927 *rate_jiffies = 0;
1928 *num_steps = 1;
1929 }
1930 else if (icon_steps == 1)
1931 {
1932 *num_steps = ~0;
1933 *rate_jiffies = ptr->delay;
1934 }
1935 else if (istep < icon_steps)
1936 {
1937 struct cursoricon_frame *frame;
1938
1939 *num_steps = icon_steps;
1940 frame = get_icon_frame( ptr, istep );
1941 if (get_icon_steps(ptr) == 1)
1942 *num_steps = ~0;
1943 else
1944 *num_steps = get_icon_steps(ptr);
1945 /* If this specific frame does not have a delay then use the global delay */
1946 if (frame->delay == ~0)
1947 *rate_jiffies = ptr->delay;
1948 else
1949 *rate_jiffies = frame->delay;
1950 release_icon_frame( ptr, istep, frame );
1951 }
1952 }
1953
1954 release_icon_ptr( hCursor, ptr );
1955
1956 return ret;
1957 }
1958
1959 /**********************************************************************
1960 * GetIconInfo (USER32.@)
1961 */
1962 BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
1963 {
1964 ICONINFOEXW infoW;
1965
1966 infoW.cbSize = sizeof(infoW);
1967 if (!GetIconInfoExW( hIcon, &infoW )) return FALSE;
1968 iconinfo->fIcon = infoW.fIcon;
1969 iconinfo->xHotspot = infoW.xHotspot;
1970 iconinfo->yHotspot = infoW.yHotspot;
1971 iconinfo->hbmColor = infoW.hbmColor;
1972 iconinfo->hbmMask = infoW.hbmMask;
1973 return TRUE;
1974 }
1975
1976 /**********************************************************************
1977 * GetIconInfoExA (USER32.@)
1978 */
1979 BOOL WINAPI GetIconInfoExA( HICON icon, ICONINFOEXA *info )
1980 {
1981 ICONINFOEXW infoW;
1982
1983 if (info->cbSize != sizeof(*info))
1984 {
1985 SetLastError( ERROR_INVALID_PARAMETER );
1986 return FALSE;
1987 }
1988 infoW.cbSize = sizeof(infoW);
1989 if (!GetIconInfoExW( icon, &infoW )) return FALSE;
1990 info->fIcon = infoW.fIcon;
1991 info->xHotspot = infoW.xHotspot;
1992 info->yHotspot = infoW.yHotspot;
1993 info->hbmColor = infoW.hbmColor;
1994 info->hbmMask = infoW.hbmMask;
1995 info->wResID = infoW.wResID;
1996 WideCharToMultiByte( CP_ACP, 0, infoW.szModName, -1, info->szModName, MAX_PATH, NULL, NULL );
1997 WideCharToMultiByte( CP_ACP, 0, infoW.szResName, -1, info->szResName, MAX_PATH, NULL, NULL );
1998 return TRUE;
1999 }
2000
2001 /**********************************************************************
2002 * GetIconInfoExW (USER32.@)
2003 */
2004 BOOL WINAPI GetIconInfoExW( HICON icon, ICONINFOEXW *info )
2005 {
2006 struct cursoricon_frame *frame;
2007 struct cursoricon_object *ptr;
2008 HMODULE module;
2009 BOOL ret = TRUE;
2010
2011 if (info->cbSize != sizeof(*info))
2012 {
2013 SetLastError( ERROR_INVALID_PARAMETER );
2014 return FALSE;
2015 }
2016 if (!(ptr = get_icon_ptr( icon )))
2017 {
2018 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
2019 return FALSE;
2020 }
2021
2022 frame = get_icon_frame( ptr, 0 );
2023 if (!frame)
2024 {
2025 release_icon_ptr( icon, ptr );
2026 SetLastError( ERROR_INVALID_CURSOR_HANDLE );
2027 return FALSE;
2028 }
2029
2030 TRACE("%p => %dx%d\n", icon, frame->width, frame->height);
2031
2032 info->fIcon = ptr->is_icon;
2033 info->xHotspot = ptr->hotspot.x;
2034 info->yHotspot = ptr->hotspot.y;
2035 info->hbmColor = copy_bitmap( frame->color );
2036 info->hbmMask = copy_bitmap( frame->mask );
2037 info->wResID = 0;
2038 info->szModName[0] = 0;
2039 info->szResName[0] = 0;
2040 if (ptr->module)
2041 {
2042 if (IS_INTRESOURCE( ptr->resname )) info->wResID = LOWORD( ptr->resname );
2043 else lstrcpynW( info->szResName, ptr->resname, MAX_PATH );
2044 }
2045 if (!info->hbmMask || (!info->hbmColor && frame->color))
2046 {
2047 DeleteObject( info->hbmMask );
2048 DeleteObject( info->hbmColor );
2049 ret = FALSE;
2050 }
2051 module = ptr->module;
2052 release_icon_frame( ptr, 0, frame );
2053 release_icon_ptr( icon, ptr );
2054 if (ret && module) GetModuleFileNameW( module, info->szModName, MAX_PATH );
2055 return ret;
2056 }
2057
2058 /* copy an icon bitmap, even when it can't be selected into a DC */
2059 /* helper for CreateIconIndirect */
2060 static void stretch_blt_icon( HDC hdc_dst, int dst_x, int dst_y, int dst_width, int dst_height,
2061 HBITMAP src, int width, int height )
2062 {
2063 HDC hdc = CreateCompatibleDC( 0 );
2064
2065 if (!SelectObject( hdc, src )) /* do it the hard way */
2066 {
2067 BITMAPINFO *info;
2068 void *bits;
2069
2070 if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) return;
2071 info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
2072 info->bmiHeader.biWidth = width;
2073 info->bmiHeader.biHeight = height;
2074 info->bmiHeader.biPlanes = GetDeviceCaps( hdc_dst, PLANES );
2075 info->bmiHeader.biBitCount = GetDeviceCaps( hdc_dst, BITSPIXEL );
2076 info->bmiHeader.biCompression = BI_RGB;
2077 info->bmiHeader.biSizeImage = get_dib_image_size( width, height, info->bmiHeader.biBitCount );
2078 info->bmiHeader.biXPelsPerMeter = 0;
2079 info->bmiHeader.biYPelsPerMeter = 0;
2080 info->bmiHeader.biClrUsed = 0;
2081 info->bmiHeader.biClrImportant = 0;
2082 bits = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage );
2083 if (bits && GetDIBits( hdc, src, 0, height, bits, info, DIB_RGB_COLORS ))
2084 StretchDIBits( hdc_dst, dst_x, dst_y, dst_width, dst_height,
2085 0, 0, width, height, bits, info, DIB_RGB_COLORS, SRCCOPY );
2086
2087 HeapFree( GetProcessHeap(), 0, bits );
2088 HeapFree( GetProcessHeap(), 0, info );
2089 }
2090 else StretchBlt( hdc_dst, dst_x, dst_y, dst_width, dst_height, hdc, 0, 0, width, height, SRCCOPY );
2091
2092 DeleteDC( hdc );
2093 }
2094
2095 /**********************************************************************
2096 * CreateIconIndirect (USER32.@)
2097 */
2098 HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
2099 {
2100 BITMAP bmpXor, bmpAnd;
2101 HICON hObj;
2102 HBITMAP color = 0, mask;
2103 int width, height;
2104 HDC hdc;
2105
2106 TRACE("color %p, mask %p, hotspot %ux%u, fIcon %d\n",
2107 iconinfo->hbmColor, iconinfo->hbmMask,
2108 iconinfo->xHotspot, iconinfo->yHotspot, iconinfo->fIcon);
2109
2110 if (!iconinfo->hbmMask) return 0;
2111
2112 GetObjectW( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
2113 TRACE("mask: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2114 bmpAnd.bmWidth, bmpAnd.bmHeight, bmpAnd.bmWidthBytes,
2115 bmpAnd.bmPlanes, bmpAnd.bmBitsPixel);
2116
2117 if (iconinfo->hbmColor)
2118 {
2119 GetObjectW( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
2120 TRACE("color: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2121 bmpXor.bmWidth, bmpXor.bmHeight, bmpXor.bmWidthBytes,
2122 bmpXor.bmPlanes, bmpXor.bmBitsPixel);
2123
2124 width = bmpXor.bmWidth;
2125 height = bmpXor.bmHeight;
2126 if (bmpXor.bmPlanes * bmpXor.bmBitsPixel != 1 || bmpAnd.bmPlanes * bmpAnd.bmBitsPixel != 1)
2127 {
2128 color = CreateCompatibleBitmap( screen_dc, width, height );
2129 mask = CreateBitmap( width, height, 1, 1, NULL );
2130 }
2131 else mask = CreateBitmap( width, height * 2, 1, 1, NULL );
2132 }
2133 else
2134 {
2135 width = bmpAnd.bmWidth;
2136 height = bmpAnd.bmHeight;
2137 mask = CreateBitmap( width, height, 1, 1, NULL );
2138 }
2139
2140 hdc = CreateCompatibleDC( 0 );
2141 SelectObject( hdc, mask );
2142 stretch_blt_icon( hdc, 0, 0, width, height, iconinfo->hbmMask, bmpAnd.bmWidth, bmpAnd.bmHeight );
2143
2144 if (color)
2145 {
2146 SelectObject( hdc, color );
2147 stretch_blt_icon( hdc, 0, 0, width, height, iconinfo->hbmColor, width, height );
2148 }
2149 else if (iconinfo->hbmColor)
2150 {
2151 stretch_blt_icon( hdc, 0, height, width, height, iconinfo->hbmColor, width, height );
2152 }
2153 else height /= 2;
2154
2155 DeleteDC( hdc );
2156
2157 hObj = alloc_icon_handle( FALSE, 1 );
2158 if (hObj)
2159 {
2160 struct cursoricon_object *info = get_icon_ptr( hObj );
2161 struct cursoricon_frame *frame;
2162
2163 info->is_icon = iconinfo->fIcon;
2164 frame = get_icon_frame( info, 0 );
2165 frame->delay = ~0;
2166 frame->width = width;
2167 frame->height = height;
2168 frame->color = color;
2169 frame->mask = mask;
2170 frame->alpha = create_alpha_bitmap( iconinfo->hbmColor, mask, NULL, NULL );
2171 release_icon_frame( info, 0, frame );
2172 if (info->is_icon)
2173 {
2174 info->hotspot.x = width / 2;
2175 info->hotspot.y = height / 2;
2176 }
2177 else
2178 {
2179 info->hotspot.x = iconinfo->xHotspot;
2180 info->hotspot.y = iconinfo->yHotspot;
2181 }
2182
2183 release_icon_ptr( hObj, info );
2184 USER_Driver->pCreateCursorIcon( hObj );
2185 }
2186 return hObj;
2187 }
2188
2189 /******************************************************************************
2190 * DrawIconEx (USER32.@) Draws an icon or cursor on device context
2191 *
2192 * NOTES
2193 * Why is this using SM_CXICON instead of SM_CXCURSOR?
2194 *
2195 * PARAMS
2196 * hdc [I] Handle to device context
2197 * x0 [I] X coordinate of upper left corner
2198 * y0 [I] Y coordinate of upper left corner
2199 * hIcon [I] Handle to icon to draw
2200 * cxWidth [I] Width of icon
2201 * cyWidth [I] Height of icon
2202 * istep [I] Index of frame in animated cursor
2203 * hbr [I] Handle to background brush
2204 * flags [I] Icon-drawing flags
2205 *
2206 * RETURNS
2207 * Success: TRUE
2208 * Failure: FALSE
2209 */
2210 BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
2211 INT cxWidth, INT cyWidth, UINT istep,
2212 HBRUSH hbr, UINT flags )
2213 {
2214 struct cursoricon_frame *frame;
2215 struct cursoricon_object *ptr;
2216 HDC hdc_dest, hMemDC;
2217 BOOL result = FALSE, DoOffscreen;
2218 HBITMAP hB_off = 0;
2219 COLORREF oldFg, oldBg;
2220 INT x, y, nStretchMode;
2221
2222 TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
2223 hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
2224
2225 if (!(ptr = get_icon_ptr( hIcon ))) return FALSE;
2226 if (istep >= get_icon_steps( ptr ))
2227 {
2228 TRACE_(icon)("Stepped past end of animated frames=%d\n", istep);
2229 release_icon_ptr( hIcon, ptr );
2230 return FALSE;
2231 }
2232 if (!(frame = get_icon_frame( ptr, istep )))
2233 {
2234 FIXME_(icon)("Error retrieving icon frame %d\n", istep);
2235 release_icon_ptr( hIcon, ptr );
2236 return FALSE;
2237 }
2238 if (!(hMemDC = CreateCompatibleDC( hdc )))
2239 {
2240 release_icon_frame( ptr, istep, frame );
2241 release_icon_ptr( hIcon, ptr );
2242 return FALSE;
2243 }
2244
2245 if (flags & DI_NOMIRROR)
2246 FIXME_(icon)("Ignoring flag DI_NOMIRROR\n");
2247
2248 /* Calculate the size of the destination image. */
2249 if (cxWidth == 0)
2250 {
2251 if (flags & DI_DEFAULTSIZE)
2252 cxWidth = GetSystemMetrics (SM_CXICON);
2253 else
2254 cxWidth = frame->width;
2255 }
2256 if (cyWidth == 0)
2257 {
2258 if (flags & DI_DEFAULTSIZE)
2259 cyWidth = GetSystemMetrics (SM_CYICON);
2260 else
2261 cyWidth = frame->height;
2262 }
2263
2264 DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
2265
2266 if (DoOffscreen) {
2267 RECT r;
2268
2269 r.left = 0;
2270 r.top = 0;
2271 r.right = cxWidth;
2272 r.bottom = cxWidth;
2273
2274 if (!(hdc_dest = CreateCompatibleDC(hdc))) goto failed;
2275 if (!(hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth)))
2276 {
2277 DeleteDC( hdc_dest );
2278 goto failed;
2279 }
2280 SelectObject(hdc_dest, hB_off);
2281 FillRect(hdc_dest, &r, hbr);
2282 x = y = 0;
2283 }
2284 else
2285 {
2286 hdc_dest = hdc;
2287 x = x0;
2288 y = y0;
2289 }
2290
2291 nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
2292
2293 oldFg = SetTextColor( hdc, RGB(0,0,0) );
2294 oldBg = SetBkColor( hdc, RGB(255,255,255) );
2295
2296 if (frame->alpha && (flags & DI_IMAGE))
2297 {
2298 BOOL alpha_blend = TRUE;
2299
2300 if (GetObjectType( hdc_dest ) == OBJ_MEMDC)
2301 {
2302 BITMAP bm;
2303 HBITMAP bmp = GetCurrentObject( hdc_dest, OBJ_BITMAP );
2304 alpha_blend = GetObjectW( bmp, sizeof(bm), &bm ) && bm.bmBitsPixel > 8;
2305 }
2306 if (alpha_blend)
2307 {
2308 BLENDFUNCTION pixelblend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
2309 SelectObject( hMemDC, frame->alpha );
2310 if (GdiAlphaBlend( hdc_dest, x, y, cxWidth, cyWidth, hMemDC,
2311 0, 0, frame->width, frame->height,
2312 pixelblend )) goto done;
2313 }
2314 }
2315
2316 if (flags & DI_MASK)
2317 {
2318 DWORD rop = (flags & DI_IMAGE) ? SRCAND : SRCCOPY;
2319 SelectObject( hMemDC, frame->mask );
2320 StretchBlt( hdc_dest, x, y, cxWidth, cyWidth,
2321 hMemDC, 0, 0, frame->width, frame->height, rop );
2322 }
2323
2324 if (flags & DI_IMAGE)
2325 {
2326 if (frame->color)
2327 {
2328 DWORD rop = (flags & DI_MASK) ? SRCINVERT : SRCCOPY;
2329 SelectObject( hMemDC, frame->color );
2330 StretchBlt( hdc_dest, x, y, cxWidth, cyWidth,
2331 hMemDC, 0, 0, frame->width, frame->height, rop );
2332 }
2333 else
2334 {
2335 DWORD rop = (flags & DI_MASK) ? SRCINVERT : SRCCOPY;
2336 SelectObject( hMemDC, frame->mask );
2337 StretchBlt( hdc_dest, x, y, cxWidth, cyWidth,
2338 hMemDC, 0, frame->height, frame->width,
2339 frame->height, rop );
2340 }
2341 }
2342
2343 done:
2344 if (DoOffscreen) BitBlt( hdc, x0, y0, cxWidth, cyWidth, hdc_dest, 0, 0, SRCCOPY );
2345
2346 SetTextColor( hdc, oldFg );
2347 SetBkColor( hdc, oldBg );
2348 SetStretchBltMode (hdc, nStretchMode);
2349 result = TRUE;
2350 if (hdc_dest != hdc) DeleteDC( hdc_dest );
2351 if (hB_off) DeleteObject(hB_off);
2352 failed:
2353 DeleteDC( hMemDC );
2354 release_icon_frame( ptr, istep, frame );
2355 release_icon_ptr( hIcon, ptr );
2356 return result;
2357 }
2358
2359 /***********************************************************************
2360 * DIB_FixColorsToLoadflags
2361 *
2362 * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
2363 * are in loadflags
2364 */
2365 static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
2366 {
2367 int colors;
2368 COLORREF c_W, c_S, c_F, c_L, c_C;
2369 int incr,i;
2370 RGBQUAD *ptr;
2371 int bitmap_type;
2372 LONG width;
2373 LONG height;
2374 WORD bpp;
2375 DWORD compr;
2376
2377 if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
2378 {
2379 WARN_(resource)("Invalid bitmap\n");
2380 return;
2381 }
2382
2383 if (bpp > 8) return;
2384
2385 if (bitmap_type == 0) /* BITMAPCOREHEADER */
2386 {
2387 incr = 3;
2388 colors = 1 << bpp;
2389 }
2390 else
2391 {
2392 incr = 4;
2393 colors = bmi->bmiHeader.biClrUsed;
2394 if (colors > 256) colors = 256;
2395 if (!colors && (bpp <= 8)) colors = 1 << bpp;
2396 }
2397
2398 c_W = GetSysColor(COLOR_WINDOW);
2399 c_S = GetSysColor(COLOR_3DSHADOW);
2400 c_F = GetSysColor(COLOR_3DFACE);
2401 c_L = GetSysColor(COLOR_3DLIGHT);
2402
2403 if (loadflags & LR_LOADTRANSPARENT) {
2404 switch (bpp) {
2405 case 1: pix = pix >> 7; break;
2406 case 4: pix = pix >> 4; break;
2407 case 8: break;
2408 default:
2409 WARN_(resource)("(%d): Unsupported depth\n", bpp);
2410 return;
2411 }
2412 if (pix >= colors) {
2413 WARN_(resource)("pixel has color index greater than biClrUsed!\n");
2414 return;
2415 }
2416 if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
2417 ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
2418 ptr->rgbBlue = GetBValue(c_W);
2419 ptr->rgbGreen = GetGValue(c_W);
2420 ptr->rgbRed = GetRValue(c_W);
2421 }
2422 if (loadflags & LR_LOADMAP3DCOLORS)
2423 for (i=0; i<colors; i++) {
2424 ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
2425 c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
2426 if (c_C == RGB(128, 128, 128)) {
2427 ptr->rgbRed = GetRValue(c_S);
2428 ptr->rgbGreen = GetGValue(c_S);
2429 ptr->rgbBlue = GetBValue(c_S);
2430 } else if (c_C == RGB(192, 192, 192)) {
2431 ptr->rgbRed = GetRValue(c_F);
2432 ptr->rgbGreen = GetGValue(c_F);
2433 ptr->rgbBlue = GetBValue(c_F);
2434 } else if (c_C == RGB(223, 223, 223)) {
2435 ptr->rgbRed = GetRValue(c_L);
2436 ptr->rgbGreen = GetGValue(c_L);
2437 ptr->rgbBlue = GetBValue(c_L);
2438 }
2439 }
2440 }
2441
2442
2443 /**********************************************************************
2444 * BITMAP_Load
2445 */
2446 static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
2447 INT desiredx, INT desiredy, UINT loadflags )
2448 {
2449 HBITMAP hbitmap = 0, orig_bm;
2450 HRSRC hRsrc;
2451 HGLOBAL handle;
2452 char *ptr = NULL;
2453 BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL;
2454 int size;
2455 BYTE pix;
2456 char *bits;
2457 LONG width, height, new_width, new_height;
2458 WORD bpp_dummy;
2459 DWORD compr_dummy, offbits = 0;
2460 INT bm_type;
2461 HDC screen_mem_dc = NULL;
2462
2463 if (!(loadflags & LR_LOADFROMFILE))
2464 {
2465 if (!instance)
2466 {
2467 /* OEM bitmap: try to load the resource from user32.dll */
2468 instance = user32_module;
2469 }
2470
2471 if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
2472 if (!(handle = LoadResource( instance, hRsrc ))) return 0;
2473
2474 if ((info = LockResource( handle )) == NULL) return 0;
2475 }
2476 else
2477 {
2478 BITMAPFILEHEADER * bmfh;
2479
2480 if (!(ptr = map_fileW( name, NULL ))) return 0;
2481 info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
2482 bmfh = (BITMAPFILEHEADER *)ptr;
2483 if (bmfh->bfType != 0x4d42 /* 'BM' */)
2484 {
2485 WARN("Invalid/unsupported bitmap format!\n");
2486 goto end;
2487 }
2488 if (bmfh->bfOffBits) offbits = bmfh->bfOffBits - sizeof(BITMAPFILEHEADER);
2489 }
2490
2491 bm_type = DIB_GetBitmapInfo( &info->bmiHeader, &width, &height,
2492 &bpp_dummy, &compr_dummy);
2493 if (bm_type == -1)
2494 {
2495 WARN("Invalid bitmap format!\n");
2496 goto end;
2497 }
2498
2499 size = bitmap_info_size(info, DIB_RGB_COLORS);
2500 fix_info = HeapAlloc(GetProcessHeap(), 0, size);
2501 scaled_info = HeapAlloc(GetProcessHeap(), 0, size);
2502
2503 if (!fix_info || !scaled_info) goto end;
2504 memcpy(fix_info, info, size);
2505
2506 pix = *((LPBYTE)info + size);
2507 DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
2508
2509 memcpy(scaled_info, fix_info, size);
2510
2511 if(desiredx != 0)
2512 new_width = desiredx;
2513 else
2514 new_width = width;
2515
2516 if(desiredy != 0)
2517 new_height = height > 0 ? desiredy : -desiredy;
2518 else
2519 new_height = height;
2520
2521 if(bm_type == 0)
2522 {
2523 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader;
2524 core->bcWidth = new_width;
2525 core->bcHeight = new_height;
2526 }
2527 else
2528 {
2529 /* Some sanity checks for BITMAPINFO (not applicable to BITMAPCOREINFO) */
2530 if (info->bmiHeader.biHeight > 65535 || info->bmiHeader.biWidth > 65535) {
2531 WARN("Broken BitmapInfoHeader!\n");
2532 goto end;
2533 }
2534
2535 scaled_info->bmiHeader.biWidth = new_width;
2536 scaled_info->bmiHeader.biHeight = new_height;
2537 }
2538
2539 if (new_height < 0) new_height = -new_height;
2540
2541 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2542 if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end;
2543
2544 bits = (char *)info + (offbits ? offbits : size);
2545
2546 if (loadflags & LR_CREATEDIBSECTION)
2547 {
2548 scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
2549 hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0);
2550 }
2551 else
2552 {
2553 if (is_dib_monochrome(fix_info))
2554 hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL);
2555 else
2556 hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height);
2557 }
2558
2559 orig_bm = SelectObject(screen_mem_dc, hbitmap);
2560 StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
2561 SelectObject(screen_mem_dc, orig_bm);
2562
2563 end:
2564 if (screen_mem_dc) DeleteDC(screen_mem_dc);
2565 HeapFree(GetProcessHeap(), 0, scaled_info);
2566 HeapFree(GetProcessHeap(), 0, fix_info);
2567 if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
2568
2569 return hbitmap;
2570 }
2571
2572 /**********************************************************************
2573 * LoadImageA (USER32.@)
2574 *
2575 * See LoadImageW.
2576 */
2577 HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
2578 INT desiredx, INT desiredy, UINT loadflags)
2579 {
2580 HANDLE res;
2581 LPWSTR u_name;
2582
2583 if (IS_INTRESOURCE(name))
2584 return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
2585
2586 __TRY {
2587 DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2588 u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
2589 MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
2590 }
2591 __EXCEPT_PAGE_FAULT {
2592 SetLastError( ERROR_INVALID_PARAMETER );
2593 return 0;
2594 }
2595 __ENDTRY
2596 res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
2597 HeapFree(GetProcessHeap(), 0, u_name);
2598 return res;
2599 }
2600
2601
2602 /******************************************************************************
2603 * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
2604 *
2605 * PARAMS
2606 * hinst [I] Handle of instance that contains image
2607 * name [I] Name of image
2608 * type [I] Type of image
2609 * desiredx [I] Desired width
2610 * desiredy [I] Desired height
2611 * loadflags [I] Load flags
2612 *
2613 * RETURNS
2614 * Success: Handle to newly loaded image
2615 * Failure: NULL
2616 *
2617 * FIXME: Implementation lacks some features, see LR_ defines in winuser.h
2618 */
2619 HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
2620 INT desiredx, INT desiredy, UINT loadflags )
2621 {
2622 int depth;
2623
2624 TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n",
2625 hinst,debugstr_w(name),type,desiredx,desiredy,loadflags);
2626
2627 if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
2628 switch (type) {
2629 case IMAGE_BITMAP:
2630 return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags );
2631
2632 case IMAGE_ICON:
2633 case IMAGE_CURSOR:
2634 depth = 1;
2635 if (!(loadflags & LR_MONOCHROME))
2636 {
2637 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2638 if (screen_dc) depth = GetDeviceCaps( screen_dc, BITSPIXEL );
2639 }
2640 return CURSORICON_Load(hinst, name, desiredx, desiredy, depth, (type == IMAGE_CURSOR), loadflags);
2641 }
2642 return 0;
2643 }
2644
2645 /******************************************************************************
2646 * CopyImage (USER32.@) Creates new image and copies attributes to it
2647 *
2648 * PARAMS
2649 * hnd [I] Handle to image to copy
2650 * type [I] Type of image to copy
2651 * desiredx [I] Desired width of new image
2652 * desiredy [I] Desired height of new image
2653 * flags [I] Copy flags
2654 *
2655 * RETURNS
2656 * Success: Handle to newly created image
2657 * Failure: NULL
2658 *
2659 * BUGS
2660 * Only Windows NT 4.0 supports the LR_COPYRETURNORG flag for bitmaps,
2661 * all other versions (95/2000/XP have been tested) ignore it.
2662 *
2663 * NOTES
2664 * If LR_CREATEDIBSECTION is absent, the copy will be monochrome for
2665 * a monochrome source bitmap or if LR_MONOCHROME is present, otherwise
2666 * the copy will have the same depth as the screen.
2667 * The content of the image will only be copied if the bit depth of the
2668 * original image is compatible with the bit depth of the screen, or
2669 * if the source is a DIB section.
2670 * The LR_MONOCHROME flag is ignored if LR_CREATEDIBSECTION is present.
2671 */
2672 HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
2673 INT desiredy, UINT flags )
2674 {
2675 TRACE("hnd=%p, type=%u, desiredx=%d, desiredy=%d, flags=%x\n",
2676 hnd, type, desiredx, desiredy, flags);
2677
2678 switch (type)
2679 {
2680 case IMAGE_BITMAP:
2681 {
2682 HBITMAP res = NULL;
2683 DIBSECTION ds;
2684 int objSize;
2685 BITMAPINFO * bi;
2686
2687 objSize = GetObjectW( hnd, sizeof(ds), &ds );
2688 if (!objSize) return 0;
2689 if ((desiredx < 0) || (desiredy < 0)) return 0;
2690
2691 if (flags & LR_COPYFROMRESOURCE)
2692 {
2693 FIXME("The flag LR_COPYFROMRESOURCE is not implemented for bitmaps\n");
2694 }
2695
2696 if (desiredx == 0) desiredx = ds.dsBm.bmWidth;
2697 if (desiredy == 0) desiredy = ds.dsBm.bmHeight;
2698
2699 /* Allocate memory for a BITMAPINFOHEADER structure and a
2700 color table. The maximum number of colors in a color table
2701 is 256 which corresponds to a bitmap with depth 8.
2702 Bitmaps with higher depths don't have color tables. */
2703 bi = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
2704 if (!bi) return 0;
2705
2706 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2707 bi->bmiHeader.biPlanes = ds.dsBm.bmPlanes;
2708 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2709 bi->bmiHeader.biCompression = BI_RGB;
2710
2711 if (flags & LR_CREATEDIBSECTION)
2712 {
2713 /* Create a DIB section. LR_MONOCHROME is ignored */
2714 void * bits;
2715 HDC dc = CreateCompatibleDC(NULL);
2716
2717 if (objSize == sizeof(DIBSECTION))
2718 {
2719 /* The source bitmap is a DIB.
2720 Get its attributes to create an exact copy */
2721 memcpy(bi, &ds.dsBmih, sizeof(BITMAPINFOHEADER));
2722 }
2723
2724 bi->bmiHeader.biWidth = desiredx;
2725 bi->bmiHeader.biHeight = desiredy;
2726
2727 /* Get the color table or the color masks */
2728 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2729
2730 res = CreateDIBSection(dc, bi, DIB_RGB_COLORS, &bits, NULL, 0);
2731 DeleteDC(dc);
2732 }
2733 else
2734 {
2735 /* Create a device-dependent bitmap */
2736
2737 BOOL monochrome = (flags & LR_MONOCHROME);
2738
2739 if (objSize == sizeof(DIBSECTION))
2740 {
2741 /* The source bitmap is a DIB section.
2742 Get its attributes */
2743 HDC dc = CreateCompatibleDC(NULL);
2744 bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
2745 bi->bmiHeader.biHeight = ds.dsBm.bmHeight;
2746 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2747 DeleteDC(dc);
2748
2749 if (!monochrome && ds.dsBm.bmBitsPixel == 1)
2750 {
2751 /* Look if the colors of the DIB are black and white */
2752
2753 monochrome =
2754 (bi->bmiColors[0].rgbRed == 0xff
2755 && bi->bmiColors[0].rgbGreen == 0xff
2756 && bi->bmiColors[0].rgbBlue == 0xff
2757 && bi->bmiColors[0].rgbReserved == 0
2758 && bi->bmiColors[1].rgbRed == 0
2759 && bi->bmiColors[1].rgbGreen == 0
2760 && bi->bmiColors[1].rgbBlue == 0
2761 && bi->bmiColors[1].rgbReserved == 0)
2762 ||
2763 (bi->bmiColors[0].rgbRed == 0
2764 && bi->bmiColors[0].rgbGreen == 0
2765 && bi->bmiColors[0].rgbBlue == 0
2766 && bi->bmiColors[0].rgbReserved == 0
2767 && bi->bmiColors[1].rgbRed == 0xff
2768 && bi->bmiColors[1].rgbGreen == 0xff
2769 && bi->bmiColors[1].rgbBlue == 0xff
2770 && bi->bmiColors[1].rgbReserved == 0);
2771 }
2772 }
2773 else if (!monochrome)
2774 {
2775 monochrome = ds.dsBm.bmBitsPixel == 1;
2776 }
2777
2778 if (monochrome)
2779 {
2780 res = CreateBitmap(desiredx, desiredy, 1, 1, NULL);
2781 }
2782 else
2783 {
2784 HDC screenDC = GetDC(NULL);
2785 res = CreateCompatibleBitmap(screenDC, desiredx, desiredy);
2786 ReleaseDC(NULL, screenDC);
2787 }
2788 }
2789
2790 if (res)
2791 {
2792 /* Only copy the bitmap if it's a DIB section or if it's
2793 compatible to the screen */
2794 BOOL copyContents;
2795
2796 if (objSize == sizeof(DIBSECTION))
2797 {
2798 copyContents = TRUE;
2799 }
2800 else
2801 {
2802 HDC screenDC = GetDC(NULL);
2803 int screen_depth = GetDeviceCaps(screenDC, BITSPIXEL);
2804 ReleaseDC(NULL, screenDC);
2805
2806 copyContents = (ds.dsBm.bmBitsPixel == 1 || ds.dsBm.bmBitsPixel == screen_depth);
2807 }
2808
2809 if (copyContents)
2810 {
2811 /* The source bitmap may already be selected in a device context,
2812 use GetDIBits/StretchDIBits and not StretchBlt */
2813
2814 HDC dc;
2815 void * bits;
2816
2817 dc = CreateCompatibleDC(NULL);
2818
2819 bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
2820 bi->bmiHeader.biHeight = ds.dsBm.bmHeight;
2821 bi->bmiHeader.biSizeImage = 0;
2822 bi->bmiHeader.biClrUsed = 0;
2823 bi->bmiHeader.biClrImportant = 0;
2824
2825 /* Fill in biSizeImage */
2826 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2827 bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, bi->bmiHeader.biSizeImage);
2828
2829 if (bits)
2830 {
2831 HBITMAP oldBmp;
2832
2833 /* Get the image bits of the source bitmap */
2834 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, bits, bi, DIB_RGB_COLORS);
2835
2836 /* Copy it to the destination bitmap */
2837 oldBmp = SelectObject(dc, res);
2838 StretchDIBits(dc, 0, 0, desiredx, desiredy,
2839 0, 0, ds.dsBm.bmWidth, ds.dsBm.bmHeight,
2840 bits, bi, DIB_RGB_COLORS, SRCCOPY);
2841 SelectObject(dc, oldBmp);
2842
2843 HeapFree(GetProcessHeap(), 0, bits);
2844 }
2845
2846 DeleteDC(dc);
2847 }
2848
2849 if (flags & LR_COPYDELETEORG)
2850 {
2851 DeleteObject(hnd);
2852 }
2853 }
2854 HeapFree(GetProcessHeap(), 0, bi);
2855 return res;
2856 }
2857 case IMAGE_ICON:
2858 case IMAGE_CURSOR:
2859 {
2860 struct cursoricon_object *icon;
2861 HICON res = 0;
2862 int depth = (flags & LR_MONOCHROME) ? 1 : GetDeviceCaps( screen_dc, BITSPIXEL );
2863
2864 if (flags & LR_DEFAULTSIZE)
2865 {
2866 if (!desiredx) desiredx = GetSystemMetrics( type == IMAGE_ICON ? SM_CXICON : SM_CXCURSOR );
2867 if (!desiredy) desiredy = GetSystemMetrics( type == IMAGE_ICON ? SM_CYICON : SM_CYCURSOR );
2868 }
2869
2870 if (!(icon = get_icon_ptr( hnd ))) return 0;
2871
2872 if (icon->rsrc && (flags & LR_COPYFROMRESOURCE))
2873 res = CURSORICON_Load( icon->module, icon->resname, desiredx, desiredy, depth,
2874 !icon->is_icon, flags );
2875 else
2876 res = CopyIcon( hnd ); /* FIXME: change size if necessary */
2877 release_icon_ptr( hnd, icon );
2878
2879 if (res && (flags & LR_COPYDELETEORG)) DeleteObject( hnd );
2880 return res;
2881 }
2882 }
2883 return 0;
2884 }
2885
2886
2887 /******************************************************************************
2888 * LoadBitmapW (USER32.@) Loads bitmap from the executable file
2889 *
2890 * RETURNS
2891 * Success: Handle to specified bitmap
2892 * Failure: NULL
2893 */
2894 HBITMAP WINAPI LoadBitmapW(
2895 HINSTANCE instance, /* [in] Handle to application instance */
2896 LPCWSTR name) /* [in] Address of bitmap resource name */
2897 {
2898 return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2899 }
2900
2901 /**********************************************************************
2902 * LoadBitmapA (USER32.@)
2903 *
2904 * See LoadBitmapW.
2905 */
2906 HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
2907 {
2908 return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2909 }
Windows API implementation