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Release 20050930.
[wine/gsoc-2012-control.git] / dlls / user / cursoricon.c
blobd8edb6b00bc493e0b7db509728f6ee259bfc789b
1 /*
2 * Cursor and icon support
3 *
4 * Copyright 1995 Alexandre Julliard
5 * 1996 Martin Von Loewis
6 * 1997 Alex Korobka
7 * 1998 Turchanov Sergey
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23
24 /*
25 * Theory:
26 *
27 * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwui/html/msdn_icons.asp
28 *
29 * Cursors and icons are stored in a global heap block, with the
30 * following layout:
31 *
32 * CURSORICONINFO info;
33 * BYTE[] ANDbits;
34 * BYTE[] XORbits;
35 *
36 * The bits structures are in the format of a device-dependent bitmap.
37 *
38 * This layout is very sub-optimal, as the bitmap bits are stored in
39 * the X client instead of in the server like other bitmaps; however,
40 * some programs (notably Paint Brush) expect to be able to manipulate
41 * the bits directly :-(
42 *
43 * FIXME: what are we going to do with animation and color (bpp > 1) cursors ?!
44 */
45
46 #include "config.h"
47 #include "wine/port.h"
48
49 #include <stdarg.h>
50 #include <string.h>
51 #include <stdlib.h>
52
53 #include "windef.h"
54 #include "winbase.h"
55 #include "wingdi.h"
56 #include "wownt32.h"
57 #include "winerror.h"
58 #include "ntstatus.h"
59 #include "excpt.h"
60 #include "wine/winbase16.h"
61 #include "wine/winuser16.h"
62 #include "wine/exception.h"
63 #include "wine/debug.h"
64 #include "user_private.h"
65
66 WINE_DEFAULT_DEBUG_CHANNEL(cursor);
67 WINE_DECLARE_DEBUG_CHANNEL(icon);
68 WINE_DECLARE_DEBUG_CHANNEL(resource);
69
70 #include "pshpack1.h"
71
72 typedef struct {
73 BYTE bWidth;
74 BYTE bHeight;
75 BYTE bColorCount;
76 BYTE bReserved;
77 WORD xHotspot;
78 WORD yHotspot;
79 DWORD dwDIBSize;
80 DWORD dwDIBOffset;
81 } CURSORICONFILEDIRENTRY;
82
83 typedef struct
84 {
85 WORD idReserved;
86 WORD idType;
87 WORD idCount;
88 CURSORICONFILEDIRENTRY idEntries[1];
89 } CURSORICONFILEDIR;
90
91 #include "poppack.h"
92
93 #define CID_RESOURCE 0x0001
94 #define CID_WIN32 0x0004
95 #define CID_NONSHARED 0x0008
96
97 static RECT CURSOR_ClipRect; /* Cursor clipping rect */
98
99 static HDC screen_dc;
100
101 static const WCHAR DISPLAYW[] = {'D','I','S','P','L','A','Y',0};
102
103 /**********************************************************************
104 * ICONCACHE for cursors/icons loaded with LR_SHARED.
105 *
106 * FIXME: This should not be allocated on the system heap, but on a
107 * subsystem-global heap (i.e. one for all Win16 processes,
108 * and one for each Win32 process).
109 */
110 typedef struct tagICONCACHE
111 {
112 struct tagICONCACHE *next;
113
114 HMODULE hModule;
115 HRSRC hRsrc;
116 HRSRC hGroupRsrc;
117 HICON hIcon;
118
119 INT count;
120
121 } ICONCACHE;
122
123 static ICONCACHE *IconAnchor = NULL;
124
125 static CRITICAL_SECTION IconCrst;
126 static CRITICAL_SECTION_DEBUG critsect_debug =
127 {
128 0, 0, &IconCrst,
129 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
130 0, 0, { (DWORD_PTR)(__FILE__ ": IconCrst") }
131 };
132 static CRITICAL_SECTION IconCrst = { &critsect_debug, -1, 0, 0, 0, 0 };
133
134 static WORD ICON_HOTSPOT = 0x4242;
135
136
137 /***********************************************************************
138 * map_fileW
139 *
140 * Helper function to map a file to memory:
141 * name - file name
142 * [RETURN] ptr - pointer to mapped file
143 * [RETURN] filesize - pointer size of file to be stored if not NULL
144 */
145 static void *map_fileW( LPCWSTR name, LPDWORD filesize )
146 {
147 HANDLE hFile, hMapping;
148 LPVOID ptr = NULL;
149
150 hFile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL,
151 OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, 0 );
152 if (hFile != INVALID_HANDLE_VALUE)
153 {
154 hMapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
155 if (hMapping)
156 {
157 ptr = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 );
158 CloseHandle( hMapping );
159 if (filesize)
160 *filesize = GetFileSize( hFile, NULL );
161 }
162 CloseHandle( hFile );
163 }
164 return ptr;
165 }
166
167
168 /***********************************************************************
169 * get_bitmap_width_bytes
170 *
171 * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
172 * data.
173 */
174 static int get_bitmap_width_bytes( int width, int bpp )
175 {
176 switch(bpp)
177 {
178 case 1:
179 return 2 * ((width+15) / 16);
180 case 4:
181 return 2 * ((width+3) / 4);
182 case 24:
183 width *= 3;
184 /* fall through */
185 case 8:
186 return width + (width & 1);
187 case 16:
188 case 15:
189 return width * 2;
190 case 32:
191 return width * 4;
192 default:
193 WARN("Unknown depth %d, please report.\n", bpp );
194 }
195 return -1;
196 }
197
198
199 /***********************************************************************
200 * get_dib_width_bytes
201 *
202 * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
203 */
204 static int get_dib_width_bytes( int width, int depth )
205 {
206 int words;
207
208 switch(depth)
209 {
210 case 1: words = (width + 31) / 32; break;
211 case 4: words = (width + 7) / 8; break;
212 case 8: words = (width + 3) / 4; break;
213 case 15:
214 case 16: words = (width + 1) / 2; break;
215 case 24: words = (width * 3 + 3)/4; break;
216 default:
217 WARN("(%d): Unsupported depth\n", depth );
218 /* fall through */
219 case 32:
220 words = width;
221 }
222 return 4 * words;
223 }
224
225
226 /***********************************************************************
227 * bitmap_info_size
228 *
229 * Return the size of the bitmap info structure including color table.
230 */
231 static int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
232 {
233 int colors;
234
235 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
236 {
237 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
238 colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
239 return sizeof(BITMAPCOREHEADER) + colors *
240 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
241 }
242 else /* assume BITMAPINFOHEADER */
243 {
244 colors = info->bmiHeader.biClrUsed;
245 if (colors > 256) /* buffer overflow otherwise */
246 colors = 256;
247 if (!colors && (info->bmiHeader.biBitCount <= 8))
248 colors = 1 << info->bmiHeader.biBitCount;
249 return sizeof(BITMAPINFOHEADER) + colors *
250 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
251 }
252 }
253
254
255 /***********************************************************************
256 * is_dib_monochrome
257 *
258 * Returns whether a DIB can be converted to a monochrome DDB.
259 *
260 * A DIB can be converted if its color table contains only black and
261 * white. Black must be the first color in the color table.
262 *
263 * Note : If the first color in the color table is white followed by
264 * black, we can't convert it to a monochrome DDB with
265 * SetDIBits, because black and white would be inverted.
266 */
267 static BOOL is_dib_monochrome( const BITMAPINFO* info )
268 {
269 if (info->bmiHeader.biBitCount != 1) return FALSE;
270
271 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
272 {
273 RGBTRIPLE *rgb = ((BITMAPCOREINFO *) info)->bmciColors;
274
275 /* Check if the first color is black */
276 if ((rgb->rgbtRed == 0) && (rgb->rgbtGreen == 0) && (rgb->rgbtBlue == 0))
277 {
278 rgb++;
279
280 /* Check if the second color is white */
281 return ((rgb->rgbtRed == 0xff) && (rgb->rgbtGreen == 0xff)
282 && (rgb->rgbtBlue == 0xff));
283 }
284 else return FALSE;
285 }
286 else /* assume BITMAPINFOHEADER */
287 {
288 RGBQUAD *rgb = info->bmiColors;
289
290 /* Check if the first color is black */
291 if ((rgb->rgbRed == 0) && (rgb->rgbGreen == 0) &&
292 (rgb->rgbBlue == 0) && (rgb->rgbReserved == 0))
293 {
294 rgb++;
295
296 /* Check if the second color is white */
297 return ((rgb->rgbRed == 0xff) && (rgb->rgbGreen == 0xff)
298 && (rgb->rgbBlue == 0xff) && (rgb->rgbReserved == 0));
299 }
300 else return FALSE;
301 }
302 }
303
304 /***********************************************************************
305 * DIB_GetBitmapInfo
306 *
307 * Get the info from a bitmap header.
308 * Return 1 for INFOHEADER, 0 for COREHEADER,
309 * 4 for V4HEADER, 5 for V5HEADER, -1 for error.
310 */
311 static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
312 LONG *height, WORD *bpp, DWORD *compr )
313 {
314 if (header->biSize == sizeof(BITMAPINFOHEADER))
315 {
316 *width = header->biWidth;
317 *height = header->biHeight;
318 *bpp = header->biBitCount;
319 *compr = header->biCompression;
320 return 1;
321 }
322 if (header->biSize == sizeof(BITMAPCOREHEADER))
323 {
324 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)header;
325 *width = core->bcWidth;
326 *height = core->bcHeight;
327 *bpp = core->bcBitCount;
328 *compr = 0;
329 return 0;
330 }
331 if (header->biSize == sizeof(BITMAPV4HEADER))
332 {
333 BITMAPV4HEADER *v4hdr = (BITMAPV4HEADER *)header;
334 *width = v4hdr->bV4Width;
335 *height = v4hdr->bV4Height;
336 *bpp = v4hdr->bV4BitCount;
337 *compr = v4hdr->bV4V4Compression;
338 return 4;
339 }
340 if (header->biSize == sizeof(BITMAPV5HEADER))
341 {
342 BITMAPV5HEADER *v5hdr = (BITMAPV5HEADER *)header;
343 *width = v5hdr->bV5Width;
344 *height = v5hdr->bV5Height;
345 *bpp = v5hdr->bV5BitCount;
346 *compr = v5hdr->bV5Compression;
347 return 5;
348 }
349 ERR("(%ld): unknown/wrong size for header\n", header->biSize );
350 return -1;
351 }
352
353 /**********************************************************************
354 * CURSORICON_FindSharedIcon
355 */
356 static HICON CURSORICON_FindSharedIcon( HMODULE hModule, HRSRC hRsrc )
357 {
358 HICON hIcon = 0;
359 ICONCACHE *ptr;
360
361 EnterCriticalSection( &IconCrst );
362
363 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
364 if ( ptr->hModule == hModule && ptr->hRsrc == hRsrc )
365 {
366 ptr->count++;
367 hIcon = ptr->hIcon;
368 break;
369 }
370
371 LeaveCriticalSection( &IconCrst );
372
373 return hIcon;
374 }
375
376 /*************************************************************************
377 * CURSORICON_FindCache
378 *
379 * Given a handle, find the corresponding cache element
380 *
381 * PARAMS
382 * Handle [I] handle to an Image
383 *
384 * RETURNS
385 * Success: The cache entry
386 * Failure: NULL
387 *
388 */
389 static ICONCACHE* CURSORICON_FindCache(HICON hIcon)
390 {
391 ICONCACHE *ptr;
392 ICONCACHE *pRet=NULL;
393 BOOL IsFound = FALSE;
394 int count;
395
396 EnterCriticalSection( &IconCrst );
397
398 for (count = 0, ptr = IconAnchor; ptr != NULL && !IsFound; ptr = ptr->next, count++ )
399 {
400 if ( hIcon == ptr->hIcon )
401 {
402 IsFound = TRUE;
403 pRet = ptr;
404 }
405 }
406
407 LeaveCriticalSection( &IconCrst );
408
409 return pRet;
410 }
411
412 /**********************************************************************
413 * CURSORICON_AddSharedIcon
414 */
415 static void CURSORICON_AddSharedIcon( HMODULE hModule, HRSRC hRsrc, HRSRC hGroupRsrc, HICON hIcon )
416 {
417 ICONCACHE *ptr = HeapAlloc( GetProcessHeap(), 0, sizeof(ICONCACHE) );
418 if ( !ptr ) return;
419
420 ptr->hModule = hModule;
421 ptr->hRsrc = hRsrc;
422 ptr->hIcon = hIcon;
423 ptr->hGroupRsrc = hGroupRsrc;
424 ptr->count = 1;
425
426 EnterCriticalSection( &IconCrst );
427 ptr->next = IconAnchor;
428 IconAnchor = ptr;
429 LeaveCriticalSection( &IconCrst );
430 }
431
432 /**********************************************************************
433 * CURSORICON_DelSharedIcon
434 */
435 static INT CURSORICON_DelSharedIcon( HICON hIcon )
436 {
437 INT count = -1;
438 ICONCACHE *ptr;
439
440 EnterCriticalSection( &IconCrst );
441
442 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
443 if ( ptr->hIcon == hIcon )
444 {
445 if ( ptr->count > 0 ) ptr->count--;
446 count = ptr->count;
447 break;
448 }
449
450 LeaveCriticalSection( &IconCrst );
451
452 return count;
453 }
454
455 /**********************************************************************
456 * CURSORICON_FreeModuleIcons
457 */
458 void CURSORICON_FreeModuleIcons( HMODULE16 hMod16 )
459 {
460 ICONCACHE **ptr = &IconAnchor;
461 HMODULE hModule = HMODULE_32(GetExePtr( hMod16 ));
462
463 EnterCriticalSection( &IconCrst );
464
465 while ( *ptr )
466 {
467 if ( (*ptr)->hModule == hModule )
468 {
469 ICONCACHE *freePtr = *ptr;
470 *ptr = freePtr->next;
471
472 GlobalFree16(HICON_16(freePtr->hIcon));
473 HeapFree( GetProcessHeap(), 0, freePtr );
474 continue;
475 }
476 ptr = &(*ptr)->next;
477 }
478
479 LeaveCriticalSection( &IconCrst );
480 }
481
482 /*
483 * The following macro functions account for the irregularities of
484 * accessing cursor and icon resources in files and resource entries.
485 */
486 typedef BOOL (*fnGetCIEntry)( LPVOID dir, int n,
487 int *width, int *height, int *bits );
488
489 /**********************************************************************
490 * CURSORICON_FindBestIcon
491 *
492 * Find the icon closest to the requested size and number of colors.
493 */
494 static int CURSORICON_FindBestIcon( LPVOID dir, fnGetCIEntry get_entry,
495 int width, int height, int colors )
496 {
497 int i, cx, cy, bits, bestEntry = -1;
498 UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
499 UINT iTempXDiff, iTempYDiff, iTempColorDiff;
500
501 /* Find Best Fit */
502 iTotalDiff = 0xFFFFFFFF;
503 iColorDiff = 0xFFFFFFFF;
504 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
505 {
506 iTempXDiff = abs(width - cx);
507 iTempYDiff = abs(height - cy);
508
509 if(iTotalDiff > (iTempXDiff + iTempYDiff))
510 {
511 iXDiff = iTempXDiff;
512 iYDiff = iTempYDiff;
513 iTotalDiff = iXDiff + iYDiff;
514 }
515 }
516
517 /* Find Best Colors for Best Fit */
518 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
519 {
520 if(abs(width - cx) == iXDiff && abs(height - cy) == iYDiff)
521 {
522 iTempColorDiff = abs(colors - (1<<bits));
523 if(iColorDiff > iTempColorDiff)
524 {
525 bestEntry = i;
526 iColorDiff = iTempColorDiff;
527 }
528 }
529 }
530
531 return bestEntry;
532 }
533
534 static BOOL CURSORICON_GetResIconEntry( LPVOID dir, int n,
535 int *width, int *height, int *bits )
536 {
537 CURSORICONDIR *resdir = dir;
538 ICONRESDIR *icon;
539
540 if ( resdir->idCount <= n )
541 return FALSE;
542 icon = &resdir->idEntries[n].ResInfo.icon;
543 *width = icon->bWidth;
544 *height = icon->bWidth;
545 *bits = resdir->idEntries[n].wBitCount;
546 return TRUE;
547 }
548
549 /**********************************************************************
550 * CURSORICON_FindBestCursor
551 *
552 * Find the cursor closest to the requested size.
553 * FIXME: parameter 'color' ignored and entries with more than 1 bpp
554 * ignored too
555 */
556 static int CURSORICON_FindBestCursor( LPVOID dir, fnGetCIEntry get_entry,
557 int width, int height, int color )
558 {
559 int i, maxwidth, maxheight, cx, cy, bits, bestEntry = -1;
560
561 /* Double height to account for AND and XOR masks */
562
563 height *= 2;
564
565 /* First find the largest one smaller than or equal to the requested size*/
566
567 maxwidth = maxheight = 0;
568 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
569 {
570 if ((cx <= width) && (cy <= height) &&
571 (cx > maxwidth) && (cy > maxheight) &&
572 (bits == 1))
573 {
574 bestEntry = i;
575 maxwidth = cx;
576 maxheight = cy;
577 }
578 }
579 if (bestEntry != -1) return bestEntry;
580
581 /* Now find the smallest one larger than the requested size */
582
583 maxwidth = maxheight = 255;
584 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
585 {
586 if (((cx < maxwidth) && (cy < maxheight) && (bits == 1)) ||
587 (bestEntry==-1))
588 {
589 bestEntry = i;
590 maxwidth = cx;
591 maxheight = cy;
592 }
593 }
594
595 return bestEntry;
596 }
597
598 static BOOL CURSORICON_GetResCursorEntry( LPVOID dir, int n,
599 int *width, int *height, int *bits )
600 {
601 CURSORICONDIR *resdir = dir;
602 CURSORDIR *cursor;
603
604 if ( resdir->idCount <= n )
605 return FALSE;
606 cursor = &resdir->idEntries[n].ResInfo.cursor;
607 *width = cursor->wWidth;
608 *height = cursor->wHeight;
609 *bits = resdir->idEntries[n].wBitCount;
610 return TRUE;
611 }
612
613 static CURSORICONDIRENTRY *CURSORICON_FindBestIconRes( CURSORICONDIR * dir,
614 int width, int height, int colors )
615 {
616 int n;
617
618 n = CURSORICON_FindBestIcon( dir, CURSORICON_GetResIconEntry,
619 width, height, colors );
620 if ( n < 0 )
621 return NULL;
622 return &dir->idEntries[n];
623 }
624
625 static CURSORICONDIRENTRY *CURSORICON_FindBestCursorRes( CURSORICONDIR *dir,
626 int width, int height, int color )
627 {
628 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetResCursorEntry,
629 width, height, color );
630 if ( n < 0 )
631 return NULL;
632 return &dir->idEntries[n];
633 }
634
635 static BOOL CURSORICON_GetFileEntry( LPVOID dir, int n,
636 int *width, int *height, int *bits )
637 {
638 CURSORICONFILEDIR *filedir = dir;
639 CURSORICONFILEDIRENTRY *entry;
640
641 if ( filedir->idCount <= n )
642 return FALSE;
643 entry = &filedir->idEntries[n];
644 *width = entry->bWidth;
645 *height = entry->bHeight;
646 *bits = entry->bColorCount;
647 return TRUE;
648 }
649
650 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestCursorFile( CURSORICONFILEDIR *dir,
651 int width, int height, int color )
652 {
653 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetFileEntry,
654 width, height, color );
655 if ( n < 0 )
656 return NULL;
657 return &dir->idEntries[n];
658 }
659
660 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestIconFile( CURSORICONFILEDIR *dir,
661 int width, int height, int color )
662 {
663 int n = CURSORICON_FindBestIcon( dir, CURSORICON_GetFileEntry,
664 width, height, color );
665 if ( n < 0 )
666 return NULL;
667 return &dir->idEntries[n];
668 }
669
670 /**********************************************************************
671 * CreateIconFromResourceEx (USER32.@)
672 *
673 * FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
674 * with cbSize parameter as well.
675 */
676 HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
677 BOOL bIcon, DWORD dwVersion,
678 INT width, INT height,
679 UINT cFlag )
680 {
681 HGLOBAL16 hObj;
682 static HDC hdcMem;
683 int sizeAnd, sizeXor;
684 HBITMAP hAndBits = 0, hXorBits = 0; /* error condition for later */
685 BITMAP bmpXor, bmpAnd;
686 POINT16 hotspot;
687 BITMAPINFO *bmi;
688 BOOL DoStretch;
689 INT size;
690
691 hotspot.x = ICON_HOTSPOT;
692 hotspot.y = ICON_HOTSPOT;
693
694 TRACE_(cursor)("%p (%u bytes), ver %08x, %ix%i %s %s\n",
695 bits, cbSize, (unsigned)dwVersion, width, height,
696 bIcon ? "icon" : "cursor", (cFlag & LR_MONOCHROME) ? "mono" : "" );
697 if (dwVersion == 0x00020000)
698 {
699 FIXME_(cursor)("\t2.xx resources are not supported\n");
700 return 0;
701 }
702
703 if (bIcon)
704 bmi = (BITMAPINFO *)bits;
705 else /* get the hotspot */
706 {
707 POINT16 *pt = (POINT16 *)bits;
708 hotspot = *pt;
709 bmi = (BITMAPINFO *)(pt + 1);
710 }
711 size = bitmap_info_size( bmi, DIB_RGB_COLORS );
712
713 if (!width) width = bmi->bmiHeader.biWidth;
714 if (!height) height = bmi->bmiHeader.biHeight/2;
715 DoStretch = (bmi->bmiHeader.biHeight/2 != height) ||
716 (bmi->bmiHeader.biWidth != width);
717
718 /* Check bitmap header */
719
720 if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) &&
721 (bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) ||
722 bmi->bmiHeader.biCompression != BI_RGB) )
723 {
724 WARN_(cursor)("\tinvalid resource bitmap header.\n");
725 return 0;
726 }
727
728 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
729 if (screen_dc)
730 {
731 BITMAPINFO* pInfo;
732
733 /* Make sure we have room for the monochrome bitmap later on.
734 * Note that BITMAPINFOINFO and BITMAPCOREHEADER are the same
735 * up to and including the biBitCount. In-memory icon resource
736 * format is as follows:
737 *
738 * BITMAPINFOHEADER icHeader // DIB header
739 * RGBQUAD icColors[] // Color table
740 * BYTE icXOR[] // DIB bits for XOR mask
741 * BYTE icAND[] // DIB bits for AND mask
742 */
743
744 if ((pInfo = HeapAlloc( GetProcessHeap(), 0,
745 max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD)))))
746 {
747 memcpy( pInfo, bmi, size );
748 pInfo->bmiHeader.biHeight /= 2;
749
750 /* Create the XOR bitmap */
751
752 if (DoStretch) {
753 if(bIcon)
754 {
755 hXorBits = CreateCompatibleBitmap(screen_dc, width, height);
756 }
757 else
758 {
759 hXorBits = CreateBitmap(width, height, 1, 1, NULL);
760 }
761 if(hXorBits)
762 {
763 HBITMAP hOld;
764 BOOL res = FALSE;
765
766 if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
767 if (hdcMem) {
768 hOld = SelectObject(hdcMem, hXorBits);
769 res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
770 bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight/2,
771 (char*)bmi + size, pInfo, DIB_RGB_COLORS, SRCCOPY);
772 SelectObject(hdcMem, hOld);
773 }
774 if (!res) { DeleteObject(hXorBits); hXorBits = 0; }
775 }
776 } else {
777 if (is_dib_monochrome(bmi)) {
778 hXorBits = CreateBitmap(width, height, 1, 1, NULL);
779 SetDIBits(screen_dc, hXorBits, 0, height,
780 (char*)bmi + size, pInfo, DIB_RGB_COLORS);
781 }
782 else
783 hXorBits = CreateDIBitmap(screen_dc, &pInfo->bmiHeader,
784 CBM_INIT, (char*)bmi + size, pInfo, DIB_RGB_COLORS);
785 }
786
787 if( hXorBits )
788 {
789 char* xbits = (char *)bmi + size +
790 get_dib_width_bytes( bmi->bmiHeader.biWidth,
791 bmi->bmiHeader.biBitCount ) * abs( bmi->bmiHeader.biHeight ) / 2;
792
793 pInfo->bmiHeader.biBitCount = 1;
794 if (pInfo->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
795 {
796 RGBQUAD *rgb = pInfo->bmiColors;
797
798 pInfo->bmiHeader.biClrUsed = pInfo->bmiHeader.biClrImportant = 2;
799 rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
800 rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
801 rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
802 }
803 else
804 {
805 RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)pInfo) + 1);
806
807 rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
808 rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
809 }
810
811 /* Create the AND bitmap */
812
813 if (DoStretch) {
814 if ((hAndBits = CreateBitmap(width, height, 1, 1, NULL))) {
815 HBITMAP hOld;
816 BOOL res = FALSE;
817
818 if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
819 if (hdcMem) {
820 hOld = SelectObject(hdcMem, hAndBits);
821 res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
822 pInfo->bmiHeader.biWidth, pInfo->bmiHeader.biHeight,
823 xbits, pInfo, DIB_RGB_COLORS, SRCCOPY);
824 SelectObject(hdcMem, hOld);
825 }
826 if (!res) { DeleteObject(hAndBits); hAndBits = 0; }
827 }
828 } else {
829 hAndBits = CreateBitmap(width, height, 1, 1, NULL);
830
831 if (hAndBits) SetDIBits(screen_dc, hAndBits, 0, height,
832 xbits, pInfo, DIB_RGB_COLORS);
833
834 }
835 if( !hAndBits ) DeleteObject( hXorBits );
836 }
837 HeapFree( GetProcessHeap(), 0, pInfo );
838 }
839 }
840
841 if( !hXorBits || !hAndBits )
842 {
843 WARN_(cursor)("\tunable to create an icon bitmap.\n");
844 return 0;
845 }
846
847 /* Now create the CURSORICONINFO structure */
848 GetObjectA( hXorBits, sizeof(bmpXor), &bmpXor );
849 GetObjectA( hAndBits, sizeof(bmpAnd), &bmpAnd );
850 sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes;
851 sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
852
853 hObj = GlobalAlloc16( GMEM_MOVEABLE,
854 sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
855 if (hObj)
856 {
857 CURSORICONINFO *info;
858
859 info = (CURSORICONINFO *)GlobalLock16( hObj );
860 info->ptHotSpot.x = hotspot.x;
861 info->ptHotSpot.y = hotspot.y;
862 info->nWidth = bmpXor.bmWidth;
863 info->nHeight = bmpXor.bmHeight;
864 info->nWidthBytes = bmpXor.bmWidthBytes;
865 info->bPlanes = bmpXor.bmPlanes;
866 info->bBitsPerPixel = bmpXor.bmBitsPixel;
867
868 /* Transfer the bitmap bits to the CURSORICONINFO structure */
869
870 GetBitmapBits( hAndBits, sizeAnd, (char *)(info + 1) );
871 GetBitmapBits( hXorBits, sizeXor, (char *)(info + 1) + sizeAnd );
872 GlobalUnlock16( hObj );
873 }
874
875 DeleteObject( hAndBits );
876 DeleteObject( hXorBits );
877 return HICON_32((HICON16)hObj);
878 }
879
880
881 /**********************************************************************
882 * CreateIconFromResource (USER32.@)
883 */
884 HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize,
885 BOOL bIcon, DWORD dwVersion)
886 {
887 return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
888 }
889
890
891 static HICON CURSORICON_LoadFromFile( LPCWSTR filename,
892 INT width, INT height, INT colors,
893 BOOL fCursor, UINT loadflags)
894 {
895 CURSORICONFILEDIRENTRY *entry;
896 CURSORICONFILEDIR *dir;
897 DWORD filesize = 0;
898 HICON hIcon = 0;
899 LPBYTE bits;
900
901 TRACE("loading %s\n", debugstr_w( filename ));
902
903 bits = map_fileW( filename, &filesize );
904 if (!bits)
905 return hIcon;
906
907 dir = (CURSORICONFILEDIR*) bits;
908 if ( filesize < sizeof(*dir) )
909 goto end;
910
911 if ( filesize < (sizeof(*dir) + sizeof(dir->idEntries[0])*(dir->idCount-1)) )
912 goto end;
913
914 if ( fCursor )
915 entry = CURSORICON_FindBestCursorFile( dir, width, height, 1 );
916 else
917 entry = CURSORICON_FindBestIconFile( dir, width, height, colors );
918
919 if ( !entry )
920 goto end;
921
922 /* check that we don't run off the end of the file */
923 if ( entry->dwDIBOffset > filesize )
924 goto end;
925 if ( entry->dwDIBOffset + entry->dwDIBSize > filesize )
926 goto end;
927
928 hIcon = CreateIconFromResourceEx( &bits[entry->dwDIBOffset], entry->dwDIBSize,
929 !fCursor, 0x00030000, width, height, loadflags );
930 end:
931 TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon );
932 UnmapViewOfFile( bits );
933 return hIcon;
934 }
935
936 /**********************************************************************
937 * CURSORICON_Load
938 *
939 * Load a cursor or icon from resource or file.
940 */
941 static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
942 INT width, INT height, INT colors,
943 BOOL fCursor, UINT loadflags)
944 {
945 HANDLE handle = 0;
946 HICON hIcon = 0;
947 HRSRC hRsrc, hGroupRsrc;
948 CURSORICONDIR *dir;
949 CURSORICONDIRENTRY *dirEntry;
950 LPBYTE bits;
951 WORD wResId;
952 DWORD dwBytesInRes;
953
954 if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
955 return CURSORICON_LoadFromFile( name, width, height, colors, fCursor, loadflags );
956
957 if (!hInstance) hInstance = user32_module; /* Load OEM cursor/icon */
958
959 /* Normalize hInstance (must be uniquely represented for icon cache) */
960
961 if (!HIWORD( hInstance ))
962 hInstance = HINSTANCE_32(GetExePtr( HINSTANCE_16(hInstance) ));
963
964 /* Get directory resource ID */
965
966 if (!(hRsrc = FindResourceW( hInstance, name,
967 (LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
968 return 0;
969 hGroupRsrc = hRsrc;
970
971 /* Find the best entry in the directory */
972
973 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
974 if (!(dir = (CURSORICONDIR*)LockResource( handle ))) return 0;
975 if (fCursor)
976 dirEntry = CURSORICON_FindBestCursorRes( dir, width, height, 1);
977 else
978 dirEntry = CURSORICON_FindBestIconRes( dir, width, height, colors );
979 if (!dirEntry) return 0;
980 wResId = dirEntry->wResId;
981 dwBytesInRes = dirEntry->dwBytesInRes;
982 FreeResource( handle );
983
984 /* Load the resource */
985
986 if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
987 (LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0;
988
989 /* If shared icon, check whether it was already loaded */
990 if ( (loadflags & LR_SHARED)
991 && (hIcon = CURSORICON_FindSharedIcon( hInstance, hRsrc ) ) != 0 )
992 return hIcon;
993
994 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
995 bits = (LPBYTE)LockResource( handle );
996 hIcon = CreateIconFromResourceEx( bits, dwBytesInRes,
997 !fCursor, 0x00030000, width, height, loadflags);
998 FreeResource( handle );
999
1000 /* If shared icon, add to icon cache */
1001
1002 if ( hIcon && (loadflags & LR_SHARED) )
1003 CURSORICON_AddSharedIcon( hInstance, hRsrc, hGroupRsrc, hIcon );
1004
1005 return hIcon;
1006 }
1007
1008 /***********************************************************************
1009 * CURSORICON_Copy
1010 *
1011 * Make a copy of a cursor or icon.
1012 */
1013 static HICON CURSORICON_Copy( HINSTANCE16 hInst16, HICON hIcon )
1014 {
1015 char *ptrOld, *ptrNew;
1016 int size;
1017 HICON16 hOld = HICON_16(hIcon);
1018 HICON16 hNew;
1019
1020 if (!(ptrOld = (char *)GlobalLock16( hOld ))) return 0;
1021 if (hInst16 && !(hInst16 = GetExePtr( hInst16 ))) return 0;
1022 size = GlobalSize16( hOld );
1023 hNew = GlobalAlloc16( GMEM_MOVEABLE, size );
1024 FarSetOwner16( hNew, hInst16 );
1025 ptrNew = (char *)GlobalLock16( hNew );
1026 memcpy( ptrNew, ptrOld, size );
1027 GlobalUnlock16( hOld );
1028 GlobalUnlock16( hNew );
1029 return HICON_32(hNew);
1030 }
1031
1032 /*************************************************************************
1033 * CURSORICON_ExtCopy
1034 *
1035 * Copies an Image from the Cache if LR_COPYFROMRESOURCE is specified
1036 *
1037 * PARAMS
1038 * Handle [I] handle to an Image
1039 * nType [I] Type of Handle (IMAGE_CURSOR | IMAGE_ICON)
1040 * iDesiredCX [I] The Desired width of the Image
1041 * iDesiredCY [I] The desired height of the Image
1042 * nFlags [I] The flags from CopyImage
1043 *
1044 * RETURNS
1045 * Success: The new handle of the Image
1046 *
1047 * NOTES
1048 * LR_COPYDELETEORG and LR_MONOCHROME are currently not implemented.
1049 * LR_MONOCHROME should be implemented by CreateIconFromResourceEx.
1050 * LR_COPYFROMRESOURCE will only work if the Image is in the Cache.
1051 *
1052 *
1053 */
1054
1055 static HICON CURSORICON_ExtCopy(HICON hIcon, UINT nType,
1056 INT iDesiredCX, INT iDesiredCY,
1057 UINT nFlags)
1058 {
1059 HICON hNew=0;
1060
1061 TRACE_(icon)("hIcon %p, nType %u, iDesiredCX %i, iDesiredCY %i, nFlags %u\n",
1062 hIcon, nType, iDesiredCX, iDesiredCY, nFlags);
1063
1064 if(hIcon == 0)
1065 {
1066 return 0;
1067 }
1068
1069 /* Best Fit or Monochrome */
1070 if( (nFlags & LR_COPYFROMRESOURCE
1071 && (iDesiredCX > 0 || iDesiredCY > 0))
1072 || nFlags & LR_MONOCHROME)
1073 {
1074 ICONCACHE* pIconCache = CURSORICON_FindCache(hIcon);
1075
1076 /* Not Found in Cache, then do a straight copy
1077 */
1078 if(pIconCache == NULL)
1079 {
1080 hNew = CURSORICON_Copy(0, hIcon);
1081 if(nFlags & LR_COPYFROMRESOURCE)
1082 {
1083 TRACE_(icon)("LR_COPYFROMRESOURCE: Failed to load from cache\n");
1084 }
1085 }
1086 else
1087 {
1088 int iTargetCY = iDesiredCY, iTargetCX = iDesiredCX;
1089 LPBYTE pBits;
1090 HANDLE hMem;
1091 HRSRC hRsrc;
1092 DWORD dwBytesInRes;
1093 WORD wResId;
1094 CURSORICONDIR *pDir;
1095 CURSORICONDIRENTRY *pDirEntry;
1096 BOOL bIsIcon = (nType == IMAGE_ICON);
1097
1098 /* Completing iDesiredCX CY for Monochrome Bitmaps if needed
1099 */
1100 if(((nFlags & LR_MONOCHROME) && !(nFlags & LR_COPYFROMRESOURCE))
1101 || (iDesiredCX == 0 && iDesiredCY == 0))
1102 {
1103 iDesiredCY = GetSystemMetrics(bIsIcon ?
1104 SM_CYICON : SM_CYCURSOR);
1105 iDesiredCX = GetSystemMetrics(bIsIcon ?
1106 SM_CXICON : SM_CXCURSOR);
1107 }
1108
1109 /* Retrieve the CURSORICONDIRENTRY
1110 */
1111 if (!(hMem = LoadResource( pIconCache->hModule ,
1112 pIconCache->hGroupRsrc)))
1113 {
1114 return 0;
1115 }
1116 if (!(pDir = (CURSORICONDIR*)LockResource( hMem )))
1117 {
1118 return 0;
1119 }
1120
1121 /* Find Best Fit
1122 */
1123 if(bIsIcon)
1124 {
1125 pDirEntry = CURSORICON_FindBestIconRes(
1126 pDir, iDesiredCX, iDesiredCY, 256 );
1127 }
1128 else
1129 {
1130 pDirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestCursorRes(
1131 pDir, iDesiredCX, iDesiredCY, 1);
1132 }
1133
1134 wResId = pDirEntry->wResId;
1135 dwBytesInRes = pDirEntry->dwBytesInRes;
1136 FreeResource(hMem);
1137
1138 TRACE_(icon)("ResID %u, BytesInRes %lu, Width %d, Height %d DX %d, DY %d\n",
1139 wResId, dwBytesInRes, pDirEntry->ResInfo.icon.bWidth,
1140 pDirEntry->ResInfo.icon.bHeight, iDesiredCX, iDesiredCY);
1141
1142 /* Get the Best Fit
1143 */
1144 if (!(hRsrc = FindResourceW(pIconCache->hModule ,
1145 MAKEINTRESOURCEW(wResId), (LPWSTR)(bIsIcon ? RT_ICON : RT_CURSOR))))
1146 {
1147 return 0;
1148 }
1149 if (!(hMem = LoadResource( pIconCache->hModule , hRsrc )))
1150 {
1151 return 0;
1152 }
1153
1154 pBits = (LPBYTE)LockResource( hMem );
1155
1156 if(nFlags & LR_DEFAULTSIZE)
1157 {
1158 iTargetCY = GetSystemMetrics(SM_CYICON);
1159 iTargetCX = GetSystemMetrics(SM_CXICON);
1160 }
1161
1162 /* Create a New Icon with the proper dimension
1163 */
1164 hNew = CreateIconFromResourceEx( pBits, dwBytesInRes,
1165 bIsIcon, 0x00030000, iTargetCX, iTargetCY, nFlags);
1166 FreeResource(hMem);
1167 }
1168 }
1169 else hNew = CURSORICON_Copy(0, hIcon);
1170 return hNew;
1171 }
1172
1173
1174 /***********************************************************************
1175 * CreateCursor (USER32.@)
1176 */
1177 HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
1178 INT xHotSpot, INT yHotSpot,
1179 INT nWidth, INT nHeight,
1180 LPCVOID lpANDbits, LPCVOID lpXORbits )
1181 {
1182 CURSORICONINFO info;
1183
1184 TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
1185 nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
1186
1187 info.ptHotSpot.x = xHotSpot;
1188 info.ptHotSpot.y = yHotSpot;
1189 info.nWidth = nWidth;
1190 info.nHeight = nHeight;
1191 info.nWidthBytes = 0;
1192 info.bPlanes = 1;
1193 info.bBitsPerPixel = 1;
1194
1195 return HICON_32(CreateCursorIconIndirect16(0, &info, lpANDbits, lpXORbits));
1196 }
1197
1198
1199 /***********************************************************************
1200 * CreateIcon (USER.407)
1201 */
1202 HICON16 WINAPI CreateIcon16( HINSTANCE16 hInstance, INT16 nWidth,
1203 INT16 nHeight, BYTE bPlanes, BYTE bBitsPixel,
1204 LPCVOID lpANDbits, LPCVOID lpXORbits )
1205 {
1206 CURSORICONINFO info;
1207
1208 TRACE_(icon)("%dx%dx%d, xor=%p, and=%p\n",
1209 nWidth, nHeight, bPlanes * bBitsPixel, lpXORbits, lpANDbits);
1210
1211 info.ptHotSpot.x = ICON_HOTSPOT;
1212 info.ptHotSpot.y = ICON_HOTSPOT;
1213 info.nWidth = nWidth;
1214 info.nHeight = nHeight;
1215 info.nWidthBytes = 0;
1216 info.bPlanes = bPlanes;
1217 info.bBitsPerPixel = bBitsPixel;
1218
1219 return CreateCursorIconIndirect16( hInstance, &info, lpANDbits, lpXORbits );
1220 }
1221
1222
1223 /***********************************************************************
1224 * CreateIcon (USER32.@)
1225 *
1226 * Creates an icon based on the specified bitmaps. The bitmaps must be
1227 * provided in a device dependent format and will be resized to
1228 * (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
1229 * depth. The provided bitmaps must be top-down bitmaps.
1230 * Although Windows does not support 15bpp(*) this API must support it
1231 * for Winelib applications.
1232 *
1233 * (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
1234 * format!
1235 *
1236 * BUGS
1237 *
1238 * - The provided bitmaps are not resized!
1239 * - The documentation says the lpXORbits bitmap must be in a device
1240 * dependent format. But we must still resize it and perform depth
1241 * conversions if necessary.
1242 * - I'm a bit unsure about the how the 'device dependent format' thing works.
1243 * I did some tests on windows and found that if you provide a 16bpp bitmap
1244 * in lpXORbits, then its format but be 565 RGB if the screen's bit depth
1245 * is 16bpp but it must be 555 RGB if the screen's bit depth is anything
1246 * else. I don't know if this is part of the GDI specs or if this is a
1247 * quirk of the graphics card driver.
1248 * - You may think that we check whether the bit depths match or not
1249 * as an optimization. But the truth is that the conversion using
1250 * CreateDIBitmap does not work for some bit depth (e.g. 8bpp) and I have
1251 * no idea why.
1252 * - I'm pretty sure that all the things we do in CreateIcon should
1253 * also be done in CreateIconIndirect...
1254 */
1255 HICON WINAPI CreateIcon(
1256 HINSTANCE hInstance, /* [in] the application's hInstance */
1257 INT nWidth, /* [in] the width of the provided bitmaps */
1258 INT nHeight, /* [in] the height of the provided bitmaps */
1259 BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
1260 BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
1261 LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
1262 LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
1263 {
1264 HICON hIcon;
1265 HDC hdc;
1266
1267 TRACE_(icon)("%dx%dx%d, xor=%p, and=%p\n",
1268 nWidth, nHeight, bPlanes * bBitsPixel, lpXORbits, lpANDbits);
1269
1270 hdc=GetDC(0);
1271 if (!hdc)
1272 return 0;
1273
1274 if (GetDeviceCaps(hdc,BITSPIXEL)==bBitsPixel) {
1275 CURSORICONINFO info;
1276
1277 info.ptHotSpot.x = ICON_HOTSPOT;
1278 info.ptHotSpot.y = ICON_HOTSPOT;
1279 info.nWidth = nWidth;
1280 info.nHeight = nHeight;
1281 info.nWidthBytes = 0;
1282 info.bPlanes = bPlanes;
1283 info.bBitsPerPixel = bBitsPixel;
1284
1285 hIcon=HICON_32(CreateCursorIconIndirect16(0, &info, lpANDbits, lpXORbits));
1286 } else {
1287 ICONINFO iinfo;
1288 BITMAPINFO bmi;
1289
1290 iinfo.fIcon=TRUE;
1291 iinfo.xHotspot=ICON_HOTSPOT;
1292 iinfo.yHotspot=ICON_HOTSPOT;
1293 iinfo.hbmMask=CreateBitmap(nWidth,nHeight,1,1,lpANDbits);
1294
1295 bmi.bmiHeader.biSize=sizeof(bmi.bmiHeader);
1296 bmi.bmiHeader.biWidth=nWidth;
1297 bmi.bmiHeader.biHeight=-nHeight;
1298 bmi.bmiHeader.biPlanes=bPlanes;
1299 bmi.bmiHeader.biBitCount=bBitsPixel;
1300 bmi.bmiHeader.biCompression=BI_RGB;
1301 bmi.bmiHeader.biSizeImage=0;
1302 bmi.bmiHeader.biXPelsPerMeter=0;
1303 bmi.bmiHeader.biYPelsPerMeter=0;
1304 bmi.bmiHeader.biClrUsed=0;
1305 bmi.bmiHeader.biClrImportant=0;
1306
1307 iinfo.hbmColor = CreateDIBitmap( hdc, &bmi.bmiHeader,
1308 CBM_INIT, lpXORbits,
1309 &bmi, DIB_RGB_COLORS );
1310
1311 hIcon=CreateIconIndirect(&iinfo);
1312 DeleteObject(iinfo.hbmMask);
1313 DeleteObject(iinfo.hbmColor);
1314 }
1315 ReleaseDC(0,hdc);
1316 return hIcon;
1317 }
1318
1319
1320 /***********************************************************************
1321 * CreateCursorIconIndirect (USER.408)
1322 */
1323 HGLOBAL16 WINAPI CreateCursorIconIndirect16( HINSTANCE16 hInstance,
1324 CURSORICONINFO *info,
1325 LPCVOID lpANDbits,
1326 LPCVOID lpXORbits )
1327 {
1328 HGLOBAL16 handle;
1329 char *ptr;
1330 int sizeAnd, sizeXor;
1331
1332 hInstance = GetExePtr( hInstance ); /* Make it a module handle */
1333 if (!lpXORbits || !lpANDbits || info->bPlanes != 1) return 0;
1334 info->nWidthBytes = get_bitmap_width_bytes(info->nWidth,info->bBitsPerPixel);
1335 sizeXor = info->nHeight * info->nWidthBytes;
1336 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1337 if (!(handle = GlobalAlloc16( GMEM_MOVEABLE,
1338 sizeof(CURSORICONINFO) + sizeXor + sizeAnd)))
1339 return 0;
1340 FarSetOwner16( handle, hInstance );
1341 ptr = (char *)GlobalLock16( handle );
1342 memcpy( ptr, info, sizeof(*info) );
1343 memcpy( ptr + sizeof(CURSORICONINFO), lpANDbits, sizeAnd );
1344 memcpy( ptr + sizeof(CURSORICONINFO) + sizeAnd, lpXORbits, sizeXor );
1345 GlobalUnlock16( handle );
1346 return handle;
1347 }
1348
1349
1350 /***********************************************************************
1351 * CopyIcon (USER.368)
1352 */
1353 HICON16 WINAPI CopyIcon16( HINSTANCE16 hInstance, HICON16 hIcon )
1354 {
1355 TRACE_(icon)("%04x %04x\n", hInstance, hIcon );
1356 return HICON_16(CURSORICON_Copy(hInstance, HICON_32(hIcon)));
1357 }
1358
1359
1360 /***********************************************************************
1361 * CopyIcon (USER32.@)
1362 */
1363 HICON WINAPI CopyIcon( HICON hIcon )
1364 {
1365 TRACE_(icon)("%p\n", hIcon );
1366 return CURSORICON_Copy( 0, hIcon );
1367 }
1368
1369
1370 /***********************************************************************
1371 * CopyCursor (USER.369)
1372 */
1373 HCURSOR16 WINAPI CopyCursor16( HINSTANCE16 hInstance, HCURSOR16 hCursor )
1374 {
1375 TRACE_(cursor)("%04x %04x\n", hInstance, hCursor );
1376 return HICON_16(CURSORICON_Copy(hInstance, HCURSOR_32(hCursor)));
1377 }
1378
1379 /**********************************************************************
1380 * DestroyIcon32 (USER.610)
1381 *
1382 * This routine is actually exported from Win95 USER under the name
1383 * DestroyIcon32 ... The behaviour implemented here should mimic
1384 * the Win95 one exactly, especially the return values, which
1385 * depend on the setting of various flags.
1386 */
1387 WORD WINAPI DestroyIcon32( HGLOBAL16 handle, UINT16 flags )
1388 {
1389 WORD retv;
1390
1391 TRACE_(icon)("(%04x, %04x)\n", handle, flags );
1392
1393 /* Check whether destroying active cursor */
1394
1395 if ( get_user_thread_info()->cursor == HICON_32(handle) )
1396 {
1397 WARN_(cursor)("Destroying active cursor!\n" );
1398 SetCursor( 0 );
1399 }
1400
1401 /* Try shared cursor/icon first */
1402
1403 if ( !(flags & CID_NONSHARED) )
1404 {
1405 INT count = CURSORICON_DelSharedIcon(HICON_32(handle));
1406
1407 if ( count != -1 )
1408 return (flags & CID_WIN32)? TRUE : (count == 0);
1409
1410 /* FIXME: OEM cursors/icons should be recognized */
1411 }
1412
1413 /* Now assume non-shared cursor/icon */
1414
1415 retv = GlobalFree16( handle );
1416 return (flags & CID_RESOURCE)? retv : TRUE;
1417 }
1418
1419 /***********************************************************************
1420 * DestroyIcon (USER32.@)
1421 */
1422 BOOL WINAPI DestroyIcon( HICON hIcon )
1423 {
1424 return DestroyIcon32(HICON_16(hIcon), CID_WIN32);
1425 }
1426
1427
1428 /***********************************************************************
1429 * DestroyCursor (USER32.@)
1430 */
1431 BOOL WINAPI DestroyCursor( HCURSOR hCursor )
1432 {
1433 return DestroyIcon32(HCURSOR_16(hCursor), CID_WIN32);
1434 }
1435
1436
1437 /***********************************************************************
1438 * DrawIcon (USER32.@)
1439 */
1440 BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
1441 {
1442 CURSORICONINFO *ptr;
1443 HDC hMemDC;
1444 HBITMAP hXorBits, hAndBits;
1445 COLORREF oldFg, oldBg;
1446
1447 if (!(ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon)))) return FALSE;
1448 if (!(hMemDC = CreateCompatibleDC( hdc ))) return FALSE;
1449 hAndBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1,
1450 (char *)(ptr+1) );
1451 hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, ptr->bPlanes,
1452 ptr->bBitsPerPixel, (char *)(ptr + 1)
1453 + ptr->nHeight * get_bitmap_width_bytes(ptr->nWidth,1) );
1454 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1455 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1456
1457 if (hXorBits && hAndBits)
1458 {
1459 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
1460 BitBlt( hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0, SRCAND );
1461 SelectObject( hMemDC, hXorBits );
1462 BitBlt(hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0,SRCINVERT);
1463 SelectObject( hMemDC, hBitTemp );
1464 }
1465 DeleteDC( hMemDC );
1466 if (hXorBits) DeleteObject( hXorBits );
1467 if (hAndBits) DeleteObject( hAndBits );
1468 GlobalUnlock16(HICON_16(hIcon));
1469 SetTextColor( hdc, oldFg );
1470 SetBkColor( hdc, oldBg );
1471 return TRUE;
1472 }
1473
1474 /***********************************************************************
1475 * DumpIcon (USER.459)
1476 */
1477 DWORD WINAPI DumpIcon16( SEGPTR pInfo, WORD *lpLen,
1478 SEGPTR *lpXorBits, SEGPTR *lpAndBits )
1479 {
1480 CURSORICONINFO *info = MapSL( pInfo );
1481 int sizeAnd, sizeXor;
1482
1483 if (!info) return 0;
1484 sizeXor = info->nHeight * info->nWidthBytes;
1485 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1486 if (lpAndBits) *lpAndBits = pInfo + sizeof(CURSORICONINFO);
1487 if (lpXorBits) *lpXorBits = pInfo + sizeof(CURSORICONINFO) + sizeAnd;
1488 if (lpLen) *lpLen = sizeof(CURSORICONINFO) + sizeAnd + sizeXor;
1489 return MAKELONG( sizeXor, sizeXor );
1490 }
1491
1492
1493 /***********************************************************************
1494 * SetCursor (USER32.@)
1495 * RETURNS:
1496 * A handle to the previous cursor shape.
1497 */
1498 HCURSOR WINAPI SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
1499 {
1500 struct user_thread_info *thread_info = get_user_thread_info();
1501 HCURSOR hOldCursor;
1502
1503 if (hCursor == thread_info->cursor) return hCursor; /* No change */
1504 TRACE_(cursor)("%p\n", hCursor );
1505 hOldCursor = thread_info->cursor;
1506 thread_info->cursor = hCursor;
1507 /* Change the cursor shape only if it is visible */
1508 if (thread_info->cursor_count >= 0)
1509 {
1510 USER_Driver->pSetCursor( (CURSORICONINFO*)GlobalLock16(HCURSOR_16(hCursor)) );
1511 GlobalUnlock16(HCURSOR_16(hCursor));
1512 }
1513 return hOldCursor;
1514 }
1515
1516 /***********************************************************************
1517 * ShowCursor (USER32.@)
1518 */
1519 INT WINAPI ShowCursor( BOOL bShow )
1520 {
1521 struct user_thread_info *thread_info = get_user_thread_info();
1522
1523 TRACE_(cursor)("%d, count=%d\n", bShow, thread_info->cursor_count );
1524
1525 if (bShow)
1526 {
1527 if (++thread_info->cursor_count == 0) /* Show it */
1528 {
1529 USER_Driver->pSetCursor((CURSORICONINFO*)GlobalLock16(HCURSOR_16(thread_info->cursor)));
1530 GlobalUnlock16(HCURSOR_16(thread_info->cursor));
1531 }
1532 }
1533 else
1534 {
1535 if (--thread_info->cursor_count == -1) /* Hide it */
1536 USER_Driver->pSetCursor( NULL );
1537 }
1538 return thread_info->cursor_count;
1539 }
1540
1541 /***********************************************************************
1542 * GetCursor (USER32.@)
1543 */
1544 HCURSOR WINAPI GetCursor(void)
1545 {
1546 return get_user_thread_info()->cursor;
1547 }
1548
1549
1550 /***********************************************************************
1551 * ClipCursor (USER32.@)
1552 */
1553 BOOL WINAPI ClipCursor( const RECT *rect )
1554 {
1555 if (!rect) SetRectEmpty( &CURSOR_ClipRect );
1556 else CopyRect( &CURSOR_ClipRect, rect );
1557 return TRUE;
1558 }
1559
1560
1561 /***********************************************************************
1562 * GetClipCursor (USER32.@)
1563 */
1564 BOOL WINAPI GetClipCursor( RECT *rect )
1565 {
1566 if (rect)
1567 {
1568 CopyRect( rect, &CURSOR_ClipRect );
1569 return TRUE;
1570 }
1571 return FALSE;
1572 }
1573
1574
1575 /***********************************************************************
1576 * SetSystemCursor (USER32.@)
1577 */
1578 BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id)
1579 {
1580 FIXME("(%p,%08lx),stub!\n", hcur, id);
1581 return TRUE;
1582 }
1583
1584
1585 /**********************************************************************
1586 * LookupIconIdFromDirectoryEx (USER.364)
1587 *
1588 * FIXME: exact parameter sizes
1589 */
1590 INT16 WINAPI LookupIconIdFromDirectoryEx16( LPBYTE dir, BOOL16 bIcon,
1591 INT16 width, INT16 height, UINT16 cFlag )
1592 {
1593 return LookupIconIdFromDirectoryEx( dir, bIcon, width, height, cFlag );
1594 }
1595
1596 /**********************************************************************
1597 * LookupIconIdFromDirectoryEx (USER32.@)
1598 */
1599 INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
1600 INT width, INT height, UINT cFlag )
1601 {
1602 CURSORICONDIR *dir = (CURSORICONDIR*)xdir;
1603 UINT retVal = 0;
1604 if( dir && !dir->idReserved && (dir->idType & 3) )
1605 {
1606 CURSORICONDIRENTRY* entry;
1607 HDC hdc;
1608 UINT palEnts;
1609 int colors;
1610 hdc = GetDC(0);
1611 palEnts = GetSystemPaletteEntries(hdc, 0, 0, NULL);
1612 if (palEnts == 0)
1613 palEnts = 256;
1614 colors = (cFlag & LR_MONOCHROME) ? 2 : palEnts;
1615
1616 ReleaseDC(0, hdc);
1617
1618 if( bIcon )
1619 entry = CURSORICON_FindBestIconRes( dir, width, height, colors );
1620 else
1621 entry = CURSORICON_FindBestCursorRes( dir, width, height, 1);
1622
1623 if( entry ) retVal = entry->wResId;
1624 }
1625 else WARN_(cursor)("invalid resource directory\n");
1626 return retVal;
1627 }
1628
1629 /**********************************************************************
1630 * LookupIconIdFromDirectory (USER.?)
1631 */
1632 INT16 WINAPI LookupIconIdFromDirectory16( LPBYTE dir, BOOL16 bIcon )
1633 {
1634 return LookupIconIdFromDirectoryEx16( dir, bIcon,
1635 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1636 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1637 }
1638
1639 /**********************************************************************
1640 * LookupIconIdFromDirectory (USER32.@)
1641 */
1642 INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
1643 {
1644 return LookupIconIdFromDirectoryEx( dir, bIcon,
1645 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1646 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1647 }
1648
1649 /**********************************************************************
1650 * GetIconID (USER.455)
1651 */
1652 WORD WINAPI GetIconID16( HGLOBAL16 hResource, DWORD resType )
1653 {
1654 LPBYTE lpDir = (LPBYTE)GlobalLock16(hResource);
1655
1656 TRACE_(cursor)("hRes=%04x, entries=%i\n",
1657 hResource, lpDir ? ((CURSORICONDIR*)lpDir)->idCount : 0);
1658
1659 switch(resType)
1660 {
1661 case RT_CURSOR:
1662 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, FALSE,
1663 GetSystemMetrics(SM_CXCURSOR), GetSystemMetrics(SM_CYCURSOR), LR_MONOCHROME );
1664 case RT_ICON:
1665 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, TRUE,
1666 GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), 0 );
1667 default:
1668 WARN_(cursor)("invalid res type %ld\n", resType );
1669 }
1670 return 0;
1671 }
1672
1673 /**********************************************************************
1674 * LoadCursorIconHandler (USER.336)
1675 *
1676 * Supposed to load resources of Windows 2.x applications.
1677 */
1678 HGLOBAL16 WINAPI LoadCursorIconHandler16( HGLOBAL16 hResource, HMODULE16 hModule, HRSRC16 hRsrc )
1679 {
1680 FIXME_(cursor)("(%04x,%04x,%04x): old 2.x resources are not supported!\n",
1681 hResource, hModule, hRsrc);
1682 return (HGLOBAL16)0;
1683 }
1684
1685 /**********************************************************************
1686 * LoadIconHandler (USER.456)
1687 */
1688 HICON16 WINAPI LoadIconHandler16( HGLOBAL16 hResource, BOOL16 bNew )
1689 {
1690 LPBYTE bits = (LPBYTE)LockResource16( hResource );
1691
1692 TRACE_(cursor)("hRes=%04x\n",hResource);
1693
1694 return HICON_16(CreateIconFromResourceEx( bits, 0, TRUE,
1695 bNew ? 0x00030000 : 0x00020000, 0, 0, LR_DEFAULTCOLOR));
1696 }
1697
1698 /***********************************************************************
1699 * LoadCursorW (USER32.@)
1700 */
1701 HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
1702 {
1703 return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
1704 LR_SHARED | LR_DEFAULTSIZE );
1705 }
1706
1707 /***********************************************************************
1708 * LoadCursorA (USER32.@)
1709 */
1710 HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
1711 {
1712 return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
1713 LR_SHARED | LR_DEFAULTSIZE );
1714 }
1715
1716 /***********************************************************************
1717 * LoadCursorFromFileW (USER32.@)
1718 */
1719 HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
1720 {
1721 return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
1722 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1723 }
1724
1725 /***********************************************************************
1726 * LoadCursorFromFileA (USER32.@)
1727 */
1728 HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
1729 {
1730 return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
1731 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1732 }
1733
1734 /***********************************************************************
1735 * LoadIconW (USER32.@)
1736 */
1737 HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
1738 {
1739 return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
1740 LR_SHARED | LR_DEFAULTSIZE );
1741 }
1742
1743 /***********************************************************************
1744 * LoadIconA (USER32.@)
1745 */
1746 HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
1747 {
1748 return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
1749 LR_SHARED | LR_DEFAULTSIZE );
1750 }
1751
1752 /**********************************************************************
1753 * GetIconInfo (USER32.@)
1754 */
1755 BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
1756 {
1757 CURSORICONINFO *ciconinfo;
1758 INT height;
1759
1760 ciconinfo = GlobalLock16(HICON_16(hIcon));
1761 if (!ciconinfo)
1762 return FALSE;
1763
1764 if ( (ciconinfo->ptHotSpot.x == ICON_HOTSPOT) &&
1765 (ciconinfo->ptHotSpot.y == ICON_HOTSPOT) )
1766 {
1767 iconinfo->fIcon = TRUE;
1768 iconinfo->xHotspot = ciconinfo->nWidth / 2;
1769 iconinfo->yHotspot = ciconinfo->nHeight / 2;
1770 }
1771 else
1772 {
1773 iconinfo->fIcon = FALSE;
1774 iconinfo->xHotspot = ciconinfo->ptHotSpot.x;
1775 iconinfo->yHotspot = ciconinfo->ptHotSpot.y;
1776 }
1777
1778 if (ciconinfo->bBitsPerPixel > 1)
1779 {
1780 iconinfo->hbmColor = CreateBitmap( ciconinfo->nWidth, ciconinfo->nHeight,
1781 ciconinfo->bPlanes, ciconinfo->bBitsPerPixel,
1782 (char *)(ciconinfo + 1)
1783 + ciconinfo->nHeight *
1784 get_bitmap_width_bytes (ciconinfo->nWidth,1) );
1785 height = ciconinfo->nHeight;
1786 }
1787 else
1788 {
1789 iconinfo->hbmColor = 0;
1790 height = ciconinfo->nHeight * 2;
1791 }
1792
1793 iconinfo->hbmMask = CreateBitmap ( ciconinfo->nWidth, height,
1794 1, 1, (char *)(ciconinfo + 1));
1795
1796 GlobalUnlock16(HICON_16(hIcon));
1797
1798 return TRUE;
1799 }
1800
1801 /**********************************************************************
1802 * CreateIconIndirect (USER32.@)
1803 */
1804 HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
1805 {
1806 BITMAP bmpXor,bmpAnd;
1807 HICON16 hObj;
1808 int sizeXor,sizeAnd;
1809
1810 GetObjectA( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
1811 GetObjectA( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
1812
1813 sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes;
1814 sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
1815
1816 hObj = GlobalAlloc16( GMEM_MOVEABLE,
1817 sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
1818 if (hObj)
1819 {
1820 CURSORICONINFO *info;
1821
1822 info = (CURSORICONINFO *)GlobalLock16( hObj );
1823
1824 /* If we are creating an icon, the hotspot is unused */
1825 if (iconinfo->fIcon)
1826 {
1827 info->ptHotSpot.x = ICON_HOTSPOT;
1828 info->ptHotSpot.y = ICON_HOTSPOT;
1829 }
1830 else
1831 {
1832 info->ptHotSpot.x = iconinfo->xHotspot;
1833 info->ptHotSpot.y = iconinfo->yHotspot;
1834 }
1835
1836 info->nWidth = bmpXor.bmWidth;
1837 info->nHeight = bmpXor.bmHeight;
1838 info->nWidthBytes = bmpXor.bmWidthBytes;
1839 info->bPlanes = bmpXor.bmPlanes;
1840 info->bBitsPerPixel = bmpXor.bmBitsPixel;
1841
1842 /* Transfer the bitmap bits to the CURSORICONINFO structure */
1843
1844 GetBitmapBits( iconinfo->hbmMask ,sizeAnd,(char*)(info + 1) );
1845 GetBitmapBits( iconinfo->hbmColor,sizeXor,(char*)(info + 1) +sizeAnd);
1846 GlobalUnlock16( hObj );
1847 }
1848 return HICON_32(hObj);
1849 }
1850
1851 /******************************************************************************
1852 * DrawIconEx (USER32.@) Draws an icon or cursor on device context
1853 *
1854 * NOTES
1855 * Why is this using SM_CXICON instead of SM_CXCURSOR?
1856 *
1857 * PARAMS
1858 * hdc [I] Handle to device context
1859 * x0 [I] X coordinate of upper left corner
1860 * y0 [I] Y coordinate of upper left corner
1861 * hIcon [I] Handle to icon to draw
1862 * cxWidth [I] Width of icon
1863 * cyWidth [I] Height of icon
1864 * istep [I] Index of frame in animated cursor
1865 * hbr [I] Handle to background brush
1866 * flags [I] Icon-drawing flags
1867 *
1868 * RETURNS
1869 * Success: TRUE
1870 * Failure: FALSE
1871 */
1872 BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
1873 INT cxWidth, INT cyWidth, UINT istep,
1874 HBRUSH hbr, UINT flags )
1875 {
1876 CURSORICONINFO *ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon));
1877 HDC hDC_off = 0, hMemDC;
1878 BOOL result = FALSE, DoOffscreen;
1879 HBITMAP hB_off = 0, hOld = 0;
1880
1881 if (!ptr) return FALSE;
1882 TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
1883 hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
1884
1885 hMemDC = CreateCompatibleDC (hdc);
1886 if (istep)
1887 FIXME_(icon)("Ignoring istep=%d\n", istep);
1888 if (flags & DI_COMPAT)
1889 FIXME_(icon)("Ignoring flag DI_COMPAT\n");
1890
1891 if (!flags) {
1892 FIXME_(icon)("no flags set? setting to DI_NORMAL\n");
1893 flags = DI_NORMAL;
1894 }
1895
1896 /* Calculate the size of the destination image. */
1897 if (cxWidth == 0)
1898 {
1899 if (flags & DI_DEFAULTSIZE)
1900 cxWidth = GetSystemMetrics (SM_CXICON);
1901 else
1902 cxWidth = ptr->nWidth;
1903 }
1904 if (cyWidth == 0)
1905 {
1906 if (flags & DI_DEFAULTSIZE)
1907 cyWidth = GetSystemMetrics (SM_CYICON);
1908 else
1909 cyWidth = ptr->nHeight;
1910 }
1911
1912 DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
1913
1914 if (DoOffscreen) {
1915 RECT r;
1916
1917 r.left = 0;
1918 r.top = 0;
1919 r.right = cxWidth;
1920 r.bottom = cxWidth;
1921
1922 hDC_off = CreateCompatibleDC(hdc);
1923 hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth);
1924 if (hDC_off && hB_off) {
1925 hOld = SelectObject(hDC_off, hB_off);
1926 FillRect(hDC_off, &r, hbr);
1927 }
1928 }
1929
1930 if (hMemDC && (!DoOffscreen || (hDC_off && hB_off)))
1931 {
1932 HBITMAP hXorBits, hAndBits;
1933 COLORREF oldFg, oldBg;
1934 INT nStretchMode;
1935
1936 nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
1937
1938 hXorBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
1939 ptr->bPlanes, ptr->bBitsPerPixel,
1940 (char *)(ptr + 1)
1941 + ptr->nHeight *
1942 get_bitmap_width_bytes(ptr->nWidth,1) );
1943 hAndBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
1944 1, 1, (char *)(ptr+1) );
1945 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1946 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1947
1948 if (hXorBits && hAndBits)
1949 {
1950 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
1951 if (flags & DI_MASK)
1952 {
1953 if (DoOffscreen)
1954 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
1955 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
1956 else
1957 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
1958 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
1959 }
1960 SelectObject( hMemDC, hXorBits );
1961 if (flags & DI_IMAGE)
1962 {
1963 if (DoOffscreen)
1964 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
1965 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
1966 else
1967 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
1968 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
1969 }
1970 SelectObject( hMemDC, hBitTemp );
1971 result = TRUE;
1972 }
1973
1974 SetTextColor( hdc, oldFg );
1975 SetBkColor( hdc, oldBg );
1976 if (hXorBits) DeleteObject( hXorBits );
1977 if (hAndBits) DeleteObject( hAndBits );
1978 SetStretchBltMode (hdc, nStretchMode);
1979 if (DoOffscreen) {
1980 BitBlt(hdc, x0, y0, cxWidth, cyWidth, hDC_off, 0, 0, SRCCOPY);
1981 SelectObject(hDC_off, hOld);
1982 }
1983 }
1984 if (hMemDC) DeleteDC( hMemDC );
1985 if (hDC_off) DeleteDC(hDC_off);
1986 if (hB_off) DeleteObject(hB_off);
1987 GlobalUnlock16(HICON_16(hIcon));
1988 return result;
1989 }
1990
1991 /***********************************************************************
1992 * DIB_FixColorsToLoadflags
1993 *
1994 * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
1995 * are in loadflags
1996 */
1997 static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
1998 {
1999 int colors;
2000 COLORREF c_W, c_S, c_F, c_L, c_C;
2001 int incr,i;
2002 RGBQUAD *ptr;
2003 int bitmap_type;
2004 LONG width;
2005 LONG height;
2006 WORD bpp;
2007 DWORD compr;
2008
2009 if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
2010 {
2011 WARN_(resource)("Invalid bitmap\n");
2012 return;
2013 }
2014
2015 if (bpp > 8) return;
2016
2017 if (bitmap_type == 0) /* BITMAPCOREHEADER */
2018 {
2019 incr = 3;
2020 colors = 1 << bpp;
2021 }
2022 else
2023 {
2024 incr = 4;
2025 colors = bmi->bmiHeader.biClrUsed;
2026 if (colors > 256) colors = 256;
2027 if (!colors && (bpp <= 8)) colors = 1 << bpp;
2028 }
2029
2030 c_W = GetSysColor(COLOR_WINDOW);
2031 c_S = GetSysColor(COLOR_3DSHADOW);
2032 c_F = GetSysColor(COLOR_3DFACE);
2033 c_L = GetSysColor(COLOR_3DLIGHT);
2034
2035 if (loadflags & LR_LOADTRANSPARENT) {
2036 switch (bpp) {
2037 case 1: pix = pix >> 7; break;
2038 case 4: pix = pix >> 4; break;
2039 case 8: break;
2040 default:
2041 WARN_(resource)("(%d): Unsupported depth\n", bpp);
2042 return;
2043 }
2044 if (pix >= colors) {
2045 WARN_(resource)("pixel has color index greater than biClrUsed!\n");
2046 return;
2047 }
2048 if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
2049 ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
2050 ptr->rgbBlue = GetBValue(c_W);
2051 ptr->rgbGreen = GetGValue(c_W);
2052 ptr->rgbRed = GetRValue(c_W);
2053 }
2054 if (loadflags & LR_LOADMAP3DCOLORS)
2055 for (i=0; i<colors; i++) {
2056 ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
2057 c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
2058 if (c_C == RGB(128, 128, 128)) {
2059 ptr->rgbRed = GetRValue(c_S);
2060 ptr->rgbGreen = GetGValue(c_S);
2061 ptr->rgbBlue = GetBValue(c_S);
2062 } else if (c_C == RGB(192, 192, 192)) {
2063 ptr->rgbRed = GetRValue(c_F);
2064 ptr->rgbGreen = GetGValue(c_F);
2065 ptr->rgbBlue = GetBValue(c_F);
2066 } else if (c_C == RGB(223, 223, 223)) {
2067 ptr->rgbRed = GetRValue(c_L);
2068 ptr->rgbGreen = GetGValue(c_L);
2069 ptr->rgbBlue = GetBValue(c_L);
2070 }
2071 }
2072 }
2073
2074
2075 /**********************************************************************
2076 * BITMAP_Load
2077 */
2078 static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
2079 INT desiredx, INT desiredy, UINT loadflags )
2080 {
2081 HBITMAP hbitmap = 0, orig_bm;
2082 HRSRC hRsrc;
2083 HGLOBAL handle;
2084 char *ptr = NULL;
2085 BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL;
2086 int size;
2087 BYTE pix;
2088 char *bits;
2089 LONG width, height, new_width, new_height;
2090 WORD bpp_dummy;
2091 DWORD compr_dummy;
2092 INT bm_type;
2093 HDC screen_mem_dc = NULL;
2094
2095 if (!(loadflags & LR_LOADFROMFILE))
2096 {
2097 if (!instance)
2098 {
2099 /* OEM bitmap: try to load the resource from user32.dll */
2100 if (HIWORD(name)) return 0;
2101 instance = user32_module;
2102 }
2103
2104 if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
2105 if (!(handle = LoadResource( instance, hRsrc ))) return 0;
2106
2107 if ((info = (BITMAPINFO *)LockResource( handle )) == NULL) return 0;
2108 }
2109 else
2110 {
2111 if (!(ptr = map_fileW( name, NULL ))) return 0;
2112 info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
2113 }
2114
2115 size = bitmap_info_size(info, DIB_RGB_COLORS);
2116 fix_info = HeapAlloc(GetProcessHeap(), 0, size);
2117 scaled_info = HeapAlloc(GetProcessHeap(), 0, size);
2118
2119 if (!fix_info || !scaled_info) goto end;
2120 memcpy(fix_info, info, size);
2121
2122 pix = *((LPBYTE)info + size);
2123 DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
2124
2125 memcpy(scaled_info, fix_info, size);
2126 bm_type = DIB_GetBitmapInfo( &fix_info->bmiHeader, &width, &height,
2127 &bpp_dummy, &compr_dummy);
2128 if(desiredx != 0)
2129 new_width = desiredx;
2130 else
2131 new_width = width;
2132
2133 if(desiredy != 0)
2134 new_height = height > 0 ? desiredy : -desiredy;
2135 else
2136 new_height = height;
2137
2138 if(bm_type == 0)
2139 {
2140 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader;
2141 core->bcWidth = new_width;
2142 core->bcHeight = new_height;
2143 }
2144 else
2145 {
2146 scaled_info->bmiHeader.biWidth = new_width;
2147 scaled_info->bmiHeader.biHeight = new_height;
2148 }
2149
2150 if (new_height < 0) new_height = -new_height;
2151
2152 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2153 if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end;
2154
2155 bits = (char *)info + size;
2156
2157 if (loadflags & LR_CREATEDIBSECTION)
2158 {
2159 scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
2160 hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0);
2161 }
2162 else
2163 {
2164 if (is_dib_monochrome(fix_info))
2165 hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL);
2166 else
2167 hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height);
2168 }
2169
2170 orig_bm = SelectObject(screen_mem_dc, hbitmap);
2171 StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
2172 SelectObject(screen_mem_dc, orig_bm);
2173
2174 end:
2175 if (screen_mem_dc) DeleteDC(screen_mem_dc);
2176 HeapFree(GetProcessHeap(), 0, scaled_info);
2177 HeapFree(GetProcessHeap(), 0, fix_info);
2178 if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
2179
2180 return hbitmap;
2181 }
2182
2183 /**********************************************************************
2184 * LoadImageA (USER32.@)
2185 *
2186 * FIXME: implementation lacks some features, see LR_ defines in winuser.h
2187 */
2188
2189 /* filter for page-fault exceptions */
2190 static WINE_EXCEPTION_FILTER(page_fault)
2191 {
2192 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
2193 return EXCEPTION_EXECUTE_HANDLER;
2194 return EXCEPTION_CONTINUE_SEARCH;
2195 }
2196
2197 /*********************************************************************/
2198
2199 HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
2200 INT desiredx, INT desiredy, UINT loadflags)
2201 {
2202 HANDLE res;
2203 LPWSTR u_name;
2204
2205 if (!HIWORD(name))
2206 return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
2207
2208 __TRY {
2209 DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2210 u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
2211 MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
2212 }
2213 __EXCEPT(page_fault) {
2214 SetLastError( ERROR_INVALID_PARAMETER );
2215 return 0;
2216 }
2217 __ENDTRY
2218 res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
2219 HeapFree(GetProcessHeap(), 0, u_name);
2220 return res;
2221 }
2222
2223
2224 /******************************************************************************
2225 * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
2226 *
2227 * PARAMS
2228 * hinst [I] Handle of instance that contains image
2229 * name [I] Name of image
2230 * type [I] Type of image
2231 * desiredx [I] Desired width
2232 * desiredy [I] Desired height
2233 * loadflags [I] Load flags
2234 *
2235 * RETURNS
2236 * Success: Handle to newly loaded image
2237 * Failure: NULL
2238 *
2239 * FIXME: Implementation lacks some features, see LR_ defines in winuser.h
2240 */
2241 HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
2242 INT desiredx, INT desiredy, UINT loadflags )
2243 {
2244 TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n",
2245 hinst,debugstr_w(name),type,desiredx,desiredy,loadflags);
2246
2247 if (loadflags & LR_DEFAULTSIZE) {
2248 if (type == IMAGE_ICON) {
2249 if (!desiredx) desiredx = GetSystemMetrics(SM_CXICON);
2250 if (!desiredy) desiredy = GetSystemMetrics(SM_CYICON);
2251 } else if (type == IMAGE_CURSOR) {
2252 if (!desiredx) desiredx = GetSystemMetrics(SM_CXCURSOR);
2253 if (!desiredy) desiredy = GetSystemMetrics(SM_CYCURSOR);
2254 }
2255 }
2256 if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
2257 switch (type) {
2258 case IMAGE_BITMAP:
2259 return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags );
2260
2261 case IMAGE_ICON:
2262 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2263 if (screen_dc)
2264 {
2265 UINT palEnts = GetSystemPaletteEntries(screen_dc, 0, 0, NULL);
2266 if (palEnts == 0) palEnts = 256;
2267 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2268 palEnts, FALSE, loadflags);
2269 }
2270 break;
2271
2272 case IMAGE_CURSOR:
2273 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2274 1, TRUE, loadflags);
2275 }
2276 return 0;
2277 }
2278
2279 /******************************************************************************
2280 * CopyImage (USER32.@) Creates new image and copies attributes to it
2281 *
2282 * PARAMS
2283 * hnd [I] Handle to image to copy
2284 * type [I] Type of image to copy
2285 * desiredx [I] Desired width of new image
2286 * desiredy [I] Desired height of new image
2287 * flags [I] Copy flags
2288 *
2289 * RETURNS
2290 * Success: Handle to newly created image
2291 * Failure: NULL
2292 *
2293 * FIXME: implementation still lacks nearly all features, see LR_*
2294 * defines in winuser.h
2295 */
2296 HICON WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
2297 INT desiredy, UINT flags )
2298 {
2299 switch (type)
2300 {
2301 case IMAGE_BITMAP:
2302 {
2303 HBITMAP res;
2304 BITMAP bm;
2305
2306 if (!GetObjectW( hnd, sizeof(bm), &bm )) return 0;
2307 bm.bmBits = NULL;
2308 if ((res = CreateBitmapIndirect(&bm)))
2309 {
2310 char *buf = HeapAlloc( GetProcessHeap(), 0, bm.bmWidthBytes * bm.bmHeight );
2311 GetBitmapBits( hnd, bm.bmWidthBytes * bm.bmHeight, buf );
2312 SetBitmapBits( res, bm.bmWidthBytes * bm.bmHeight, buf );
2313 HeapFree( GetProcessHeap(), 0, buf );
2314 }
2315 return (HICON)res;
2316 }
2317 case IMAGE_ICON:
2318 return CURSORICON_ExtCopy(hnd,type, desiredx, desiredy, flags);
2319 case IMAGE_CURSOR:
2320 /* Should call CURSORICON_ExtCopy but more testing
2321 * needs to be done before we change this
2322 */
2323 return CopyCursor(hnd);
2324 }
2325 return 0;
2326 }
2327
2328
2329 /******************************************************************************
2330 * LoadBitmapW (USER32.@) Loads bitmap from the executable file
2331 *
2332 * RETURNS
2333 * Success: Handle to specified bitmap
2334 * Failure: NULL
2335 */
2336 HBITMAP WINAPI LoadBitmapW(
2337 HINSTANCE instance, /* [in] Handle to application instance */
2338 LPCWSTR name) /* [in] Address of bitmap resource name */
2339 {
2340 return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2341 }
2342
2343 /**********************************************************************
2344 * LoadBitmapA (USER32.@)
2345 */
2346 HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
2347 {
2348 return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2349 }
GSOC 2012 project to enhance the control panel