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Added YUV routines needed for v4l driver, and in the future possibly
[wine/gsoc-2012-control.git] / dlls / user / cursoricon.c
blob2b4e0ea29acd794ef653700f08549f7c616a9bec
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 "cursoricon.h"
64 #include "wine/debug.h"
65 #include "user_private.h"
66
67 WINE_DEFAULT_DEBUG_CHANNEL(cursor);
68 WINE_DECLARE_DEBUG_CHANNEL(icon);
69 WINE_DECLARE_DEBUG_CHANNEL(resource);
70
71
72 static RECT CURSOR_ClipRect; /* Cursor clipping rect */
73
74 static HDC screen_dc;
75
76 static const WCHAR DISPLAYW[] = {'D','I','S','P','L','A','Y',0};
77
78 /**********************************************************************
79 * ICONCACHE for cursors/icons loaded with LR_SHARED.
80 *
81 * FIXME: This should not be allocated on the system heap, but on a
82 * subsystem-global heap (i.e. one for all Win16 processes,
83 * and one for each Win32 process).
84 */
85 typedef struct tagICONCACHE
86 {
87 struct tagICONCACHE *next;
88
89 HMODULE hModule;
90 HRSRC hRsrc;
91 HRSRC hGroupRsrc;
92 HICON hIcon;
93
94 INT count;
95
96 } ICONCACHE;
97
98 static ICONCACHE *IconAnchor = NULL;
99
100 static CRITICAL_SECTION IconCrst;
101 static CRITICAL_SECTION_DEBUG critsect_debug =
102 {
103 0, 0, &IconCrst,
104 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
105 0, 0, { 0, (DWORD)(__FILE__ ": IconCrst") }
106 };
107 static CRITICAL_SECTION IconCrst = { &critsect_debug, -1, 0, 0, 0, 0 };
108
109 static WORD ICON_HOTSPOT = 0x4242;
110
111
112 /***********************************************************************
113 * map_fileW
114 *
115 * Helper function to map a file to memory:
116 * name - file name
117 * [RETURN] ptr - pointer to mapped file
118 * [RETURN] filesize - pointer size of file to be stored if not NULL
119 */
120 static void *map_fileW( LPCWSTR name, LPDWORD filesize )
121 {
122 HANDLE hFile, hMapping;
123 LPVOID ptr = NULL;
124
125 hFile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL,
126 OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, 0 );
127 if (hFile != INVALID_HANDLE_VALUE)
128 {
129 hMapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
130 if (hMapping)
131 {
132 ptr = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 );
133 CloseHandle( hMapping );
134 if (filesize)
135 *filesize = GetFileSize( hFile, NULL );
136 }
137 CloseHandle( hFile );
138 }
139 return ptr;
140 }
141
142
143 /***********************************************************************
144 * get_bitmap_width_bytes
145 *
146 * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
147 * data.
148 */
149 static int get_bitmap_width_bytes( int width, int bpp )
150 {
151 switch(bpp)
152 {
153 case 1:
154 return 2 * ((width+15) / 16);
155 case 4:
156 return 2 * ((width+3) / 4);
157 case 24:
158 width *= 3;
159 /* fall through */
160 case 8:
161 return width + (width & 1);
162 case 16:
163 case 15:
164 return width * 2;
165 case 32:
166 return width * 4;
167 default:
168 WARN("Unknown depth %d, please report.\n", bpp );
169 }
170 return -1;
171 }
172
173
174 /***********************************************************************
175 * get_dib_width_bytes
176 *
177 * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
178 */
179 static int get_dib_width_bytes( int width, int depth )
180 {
181 int words;
182
183 switch(depth)
184 {
185 case 1: words = (width + 31) / 32; break;
186 case 4: words = (width + 7) / 8; break;
187 case 8: words = (width + 3) / 4; break;
188 case 15:
189 case 16: words = (width + 1) / 2; break;
190 case 24: words = (width * 3 + 3)/4; break;
191 default:
192 WARN("(%d): Unsupported depth\n", depth );
193 /* fall through */
194 case 32:
195 words = width;
196 }
197 return 4 * words;
198 }
199
200
201 /***********************************************************************
202 * bitmap_info_size
203 *
204 * Return the size of the bitmap info structure including color table.
205 */
206 static int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
207 {
208 int colors;
209
210 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
211 {
212 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
213 colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
214 return sizeof(BITMAPCOREHEADER) + colors *
215 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
216 }
217 else /* assume BITMAPINFOHEADER */
218 {
219 colors = info->bmiHeader.biClrUsed;
220 if (colors > 256) /* buffer overflow otherwise */
221 colors = 256;
222 if (!colors && (info->bmiHeader.biBitCount <= 8))
223 colors = 1 << info->bmiHeader.biBitCount;
224 return sizeof(BITMAPINFOHEADER) + colors *
225 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
226 }
227 }
228
229
230 /***********************************************************************
231 * is_dib_monochrome
232 *
233 * Returns whether a DIB can be converted to a monochrome DDB.
234 *
235 * A DIB can be converted if its color table contains only black and
236 * white. Black must be the first color in the color table.
237 *
238 * Note : If the first color in the color table is white followed by
239 * black, we can't convert it to a monochrome DDB with
240 * SetDIBits, because black and white would be inverted.
241 */
242 static BOOL is_dib_monochrome( const BITMAPINFO* info )
243 {
244 if (info->bmiHeader.biBitCount != 1) return FALSE;
245
246 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
247 {
248 RGBTRIPLE *rgb = ((BITMAPCOREINFO *) info)->bmciColors;
249
250 /* Check if the first color is black */
251 if ((rgb->rgbtRed == 0) && (rgb->rgbtGreen == 0) && (rgb->rgbtBlue == 0))
252 {
253 rgb++;
254
255 /* Check if the second color is white */
256 return ((rgb->rgbtRed == 0xff) && (rgb->rgbtGreen == 0xff)
257 && (rgb->rgbtBlue == 0xff));
258 }
259 else return FALSE;
260 }
261 else /* assume BITMAPINFOHEADER */
262 {
263 RGBQUAD *rgb = info->bmiColors;
264
265 /* Check if the first color is black */
266 if ((rgb->rgbRed == 0) && (rgb->rgbGreen == 0) &&
267 (rgb->rgbBlue == 0) && (rgb->rgbReserved == 0))
268 {
269 rgb++;
270
271 /* Check if the second color is white */
272 return ((rgb->rgbRed == 0xff) && (rgb->rgbGreen == 0xff)
273 && (rgb->rgbBlue == 0xff) && (rgb->rgbReserved == 0));
274 }
275 else return FALSE;
276 }
277 }
278
279 /***********************************************************************
280 * DIB_GetBitmapInfo
281 *
282 * Get the info from a bitmap header.
283 * Return 1 for INFOHEADER, 0 for COREHEADER,
284 * 4 for V4HEADER, 5 for V5HEADER, -1 for error.
285 */
286 static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
287 LONG *height, WORD *bpp, DWORD *compr )
288 {
289 if (header->biSize == sizeof(BITMAPINFOHEADER))
290 {
291 *width = header->biWidth;
292 *height = header->biHeight;
293 *bpp = header->biBitCount;
294 *compr = header->biCompression;
295 return 1;
296 }
297 if (header->biSize == sizeof(BITMAPCOREHEADER))
298 {
299 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)header;
300 *width = core->bcWidth;
301 *height = core->bcHeight;
302 *bpp = core->bcBitCount;
303 *compr = 0;
304 return 0;
305 }
306 if (header->biSize == sizeof(BITMAPV4HEADER))
307 {
308 BITMAPV4HEADER *v4hdr = (BITMAPV4HEADER *)header;
309 *width = v4hdr->bV4Width;
310 *height = v4hdr->bV4Height;
311 *bpp = v4hdr->bV4BitCount;
312 *compr = v4hdr->bV4V4Compression;
313 return 4;
314 }
315 if (header->biSize == sizeof(BITMAPV5HEADER))
316 {
317 BITMAPV5HEADER *v5hdr = (BITMAPV5HEADER *)header;
318 *width = v5hdr->bV5Width;
319 *height = v5hdr->bV5Height;
320 *bpp = v5hdr->bV5BitCount;
321 *compr = v5hdr->bV5Compression;
322 return 5;
323 }
324 ERR("(%ld): unknown/wrong size for header\n", header->biSize );
325 return -1;
326 }
327
328 /**********************************************************************
329 * CURSORICON_FindSharedIcon
330 */
331 static HICON CURSORICON_FindSharedIcon( HMODULE hModule, HRSRC hRsrc )
332 {
333 HICON hIcon = 0;
334 ICONCACHE *ptr;
335
336 EnterCriticalSection( &IconCrst );
337
338 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
339 if ( ptr->hModule == hModule && ptr->hRsrc == hRsrc )
340 {
341 ptr->count++;
342 hIcon = ptr->hIcon;
343 break;
344 }
345
346 LeaveCriticalSection( &IconCrst );
347
348 return hIcon;
349 }
350
351 /*************************************************************************
352 * CURSORICON_FindCache
353 *
354 * Given a handle, find the corresponding cache element
355 *
356 * PARAMS
357 * Handle [I] handle to an Image
358 *
359 * RETURNS
360 * Success: The cache entry
361 * Failure: NULL
362 *
363 */
364 static ICONCACHE* CURSORICON_FindCache(HICON hIcon)
365 {
366 ICONCACHE *ptr;
367 ICONCACHE *pRet=NULL;
368 BOOL IsFound = FALSE;
369 int count;
370
371 EnterCriticalSection( &IconCrst );
372
373 for (count = 0, ptr = IconAnchor; ptr != NULL && !IsFound; ptr = ptr->next, count++ )
374 {
375 if ( hIcon == ptr->hIcon )
376 {
377 IsFound = TRUE;
378 pRet = ptr;
379 }
380 }
381
382 LeaveCriticalSection( &IconCrst );
383
384 return pRet;
385 }
386
387 /**********************************************************************
388 * CURSORICON_AddSharedIcon
389 */
390 static void CURSORICON_AddSharedIcon( HMODULE hModule, HRSRC hRsrc, HRSRC hGroupRsrc, HICON hIcon )
391 {
392 ICONCACHE *ptr = HeapAlloc( GetProcessHeap(), 0, sizeof(ICONCACHE) );
393 if ( !ptr ) return;
394
395 ptr->hModule = hModule;
396 ptr->hRsrc = hRsrc;
397 ptr->hIcon = hIcon;
398 ptr->hGroupRsrc = hGroupRsrc;
399 ptr->count = 1;
400
401 EnterCriticalSection( &IconCrst );
402 ptr->next = IconAnchor;
403 IconAnchor = ptr;
404 LeaveCriticalSection( &IconCrst );
405 }
406
407 /**********************************************************************
408 * CURSORICON_DelSharedIcon
409 */
410 static INT CURSORICON_DelSharedIcon( HICON hIcon )
411 {
412 INT count = -1;
413 ICONCACHE *ptr;
414
415 EnterCriticalSection( &IconCrst );
416
417 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
418 if ( ptr->hIcon == hIcon )
419 {
420 if ( ptr->count > 0 ) ptr->count--;
421 count = ptr->count;
422 break;
423 }
424
425 LeaveCriticalSection( &IconCrst );
426
427 return count;
428 }
429
430 /**********************************************************************
431 * CURSORICON_FreeModuleIcons
432 */
433 void CURSORICON_FreeModuleIcons( HMODULE16 hMod16 )
434 {
435 ICONCACHE **ptr = &IconAnchor;
436 HMODULE hModule = HMODULE_32(GetExePtr( hMod16 ));
437
438 EnterCriticalSection( &IconCrst );
439
440 while ( *ptr )
441 {
442 if ( (*ptr)->hModule == hModule )
443 {
444 ICONCACHE *freePtr = *ptr;
445 *ptr = freePtr->next;
446
447 GlobalFree16(HICON_16(freePtr->hIcon));
448 HeapFree( GetProcessHeap(), 0, freePtr );
449 continue;
450 }
451 ptr = &(*ptr)->next;
452 }
453
454 LeaveCriticalSection( &IconCrst );
455 }
456
457 /**********************************************************************
458 * CURSORICON_FindBestIcon
459 *
460 * Find the icon closest to the requested size and number of colors.
461 */
462 static CURSORICONDIRENTRY *CURSORICON_FindBestIcon( CURSORICONDIR *dir, int width,
463 int height, int colors )
464 {
465 int i;
466 CURSORICONDIRENTRY *entry, *bestEntry = NULL;
467 UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
468 UINT iTempXDiff, iTempYDiff, iTempColorDiff;
469
470 if (dir->idCount < 1)
471 {
472 WARN_(icon)("Empty directory!\n" );
473 return NULL;
474 }
475 if (dir->idCount == 1) return &dir->idEntries[0]; /* No choice... */
476
477 /* Find Best Fit */
478 iTotalDiff = 0xFFFFFFFF;
479 iColorDiff = 0xFFFFFFFF;
480 for (i = 0, entry = &dir->idEntries[0]; i < dir->idCount; i++,entry++)
481 {
482 iTempXDiff = abs(width - entry->ResInfo.icon.bWidth);
483 iTempYDiff = abs(height - entry->ResInfo.icon.bHeight);
484
485 if(iTotalDiff > (iTempXDiff + iTempYDiff))
486 {
487 iXDiff = iTempXDiff;
488 iYDiff = iTempYDiff;
489 iTotalDiff = iXDiff + iYDiff;
490 }
491 }
492
493 /* Find Best Colors for Best Fit */
494 for (i = 0, entry = &dir->idEntries[0]; i < dir->idCount; i++,entry++)
495 {
496 if(abs(width - entry->ResInfo.icon.bWidth) == iXDiff &&
497 abs(height - entry->ResInfo.icon.bHeight) == iYDiff)
498 {
499 iTempColorDiff = abs(colors - (1<<entry->wBitCount));
500 if(iColorDiff > iTempColorDiff)
501 {
502 bestEntry = entry;
503 iColorDiff = iTempColorDiff;
504 }
505 }
506 }
507
508 return bestEntry;
509 }
510
511
512 /**********************************************************************
513 * CURSORICON_FindBestCursor
514 *
515 * Find the cursor closest to the requested size.
516 * FIXME: parameter 'color' ignored and entries with more than 1 bpp
517 * ignored too
518 */
519 static CURSORICONDIRENTRY *CURSORICON_FindBestCursor( CURSORICONDIR *dir,
520 int width, int height, int color)
521 {
522 int i, maxwidth, maxheight;
523 CURSORICONDIRENTRY *entry, *bestEntry = NULL;
524
525 if (dir->idCount < 1)
526 {
527 WARN_(cursor)("Empty directory!\n" );
528 return NULL;
529 }
530 if (dir->idCount == 1) return &dir->idEntries[0]; /* No choice... */
531
532 /* Double height to account for AND and XOR masks */
533
534 height *= 2;
535
536 /* First find the largest one smaller than or equal to the requested size*/
537
538 maxwidth = maxheight = 0;
539 for(i = 0,entry = &dir->idEntries[0]; i < dir->idCount; i++,entry++)
540 if ((entry->ResInfo.cursor.wWidth <= width) && (entry->ResInfo.cursor.wHeight <= height) &&
541 (entry->ResInfo.cursor.wWidth > maxwidth) && (entry->ResInfo.cursor.wHeight > maxheight) &&
542 (entry->wBitCount == 1))
543 {
544 bestEntry = entry;
545 maxwidth = entry->ResInfo.cursor.wWidth;
546 maxheight = entry->ResInfo.cursor.wHeight;
547 }
548 if (bestEntry) return bestEntry;
549
550 /* Now find the smallest one larger than the requested size */
551
552 maxwidth = maxheight = 255;
553 for(i = 0,entry = &dir->idEntries[0]; i < dir->idCount; i++,entry++)
554 if ((entry->ResInfo.cursor.wWidth < maxwidth) && (entry->ResInfo.cursor.wHeight < maxheight) &&
555 (entry->wBitCount == 1))
556 {
557 bestEntry = entry;
558 maxwidth = entry->ResInfo.cursor.wWidth;
559 maxheight = entry->ResInfo.cursor.wHeight;
560 }
561
562 return bestEntry;
563 }
564
565 /*********************************************************************
566 * The main purpose of this function is to create fake resource directory
567 * and fake resource entries. There are several reasons for this:
568 * - CURSORICONDIR and CURSORICONFILEDIR differ in sizes and their
569 * fields
570 * There are some "bad" cursor files which do not have
571 * bColorCount initialized but instead one must read this info
572 * directly from corresponding DIB sections
573 * Note: wResId is index to array of pointer returned in ptrs (origin is 1)
574 */
575 static BOOL CURSORICON_SimulateLoadingFromResourceW( LPCWSTR filename, BOOL fCursor,
576 CURSORICONDIR **res, LPBYTE **ptr)
577 {
578 LPBYTE _free;
579 DWORD filesize;
580 CURSORICONFILEDIR *bits;
581 int entries, size, i;
582
583 *res = NULL;
584 *ptr = NULL;
585 if (!(bits = map_fileW( filename, &filesize ))) return FALSE;
586
587 /* FIXME: test for animated icons
588 * hack to load the first icon from the *.ani file
589 */
590 if ( *(LPDWORD)bits==0x46464952 ) /* "RIFF" */
591 { LPBYTE pos = (LPBYTE) bits;
592 FIXME_(cursor)("Animated icons not correctly implemented! %p \n", bits);
593
594 for (;;)
595 { if (*(LPDWORD)pos==0x6e6f6369) /* "icon" */
596 { FIXME_(cursor)("icon entry found! %p\n", bits);
597 pos+=4;
598 if ( !*(LPWORD) pos==0x2fe) /* iconsize */
599 { goto fail;
600 }
601 bits=(CURSORICONFILEDIR*)(pos+4);
602 FIXME_(cursor)("icon size ok. offset=%p \n", bits);
603 break;
604 }
605 pos+=2;
606 if (pos>=(LPBYTE)bits+766) goto fail;
607 }
608 }
609 if (!(entries = bits->idCount)) goto fail;
610 if ( (sizeof(CURSORICONFILEDIR) +
611 sizeof(CURSORICONFILEDIRENTRY) * (entries - 1)) > filesize)
612 {
613 FIXME("broken file %s\n", wine_dbgstr_w(filename));
614 goto fail;
615 }
616 size = sizeof(CURSORICONDIR) + sizeof(CURSORICONDIRENTRY) * (entries - 1);
617 _free = (LPBYTE) size;
618
619 for (i=0; i < entries; i++)
620 size += bits->idEntries[i].dwDIBSize + (fCursor ? sizeof(POINT16): 0);
621
622 if (!(*ptr = HeapAlloc( GetProcessHeap(), 0,
623 entries * sizeof (CURSORICONDIRENTRY*)))) goto fail;
624 if (!(*res = HeapAlloc( GetProcessHeap(), 0, size))) goto fail;
625
626 _free = (LPBYTE)(*res) + (int)_free;
627 memcpy((*res), bits, 6);
628 for (i=0; i<entries; i++)
629 {
630 ((LPBYTE*)(*ptr))[i] = _free;
631 if (fCursor) {
632 (*res)->idEntries[i].ResInfo.cursor.wWidth=bits->idEntries[i].bWidth;
633 (*res)->idEntries[i].ResInfo.cursor.wHeight=bits->idEntries[i].bHeight;
634 ((LPPOINT16)_free)->x=bits->idEntries[i].xHotspot;
635 ((LPPOINT16)_free)->y=bits->idEntries[i].yHotspot;
636 _free+=sizeof(POINT16);
637 } else {
638 (*res)->idEntries[i].ResInfo.icon.bWidth=bits->idEntries[i].bWidth;
639 (*res)->idEntries[i].ResInfo.icon.bHeight=bits->idEntries[i].bHeight;
640 (*res)->idEntries[i].ResInfo.icon.bColorCount = bits->idEntries[i].bColorCount;
641 }
642 (*res)->idEntries[i].wPlanes=1;
643 (*res)->idEntries[i].wBitCount = ((LPBITMAPINFOHEADER)((LPBYTE)bits +
644 bits->idEntries[i].dwDIBOffset))->biBitCount;
645 (*res)->idEntries[i].dwBytesInRes = bits->idEntries[i].dwDIBSize;
646 (*res)->idEntries[i].wResId=i+1;
647
648 memcpy(_free,(LPBYTE)bits +bits->idEntries[i].dwDIBOffset,
649 (*res)->idEntries[i].dwBytesInRes);
650 _free += (*res)->idEntries[i].dwBytesInRes;
651 }
652 UnmapViewOfFile( bits );
653 return TRUE;
654 fail:
655 HeapFree( GetProcessHeap(), 0, *res );
656 HeapFree( GetProcessHeap(), 0, *ptr );
657 UnmapViewOfFile( bits );
658 return FALSE;
659 }
660
661
662 /**********************************************************************
663 * CURSORICON_CreateFromResource
664 *
665 * Create a cursor or icon from in-memory resource template.
666 *
667 * FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
668 * with cbSize parameter as well.
669 */
670 static HICON CURSORICON_CreateFromResource( HMODULE16 hModule, HGLOBAL16 hObj, LPBYTE bits,
671 UINT cbSize, BOOL bIcon, DWORD dwVersion,
672 INT width, INT height, UINT loadflags )
673 {
674 static HDC hdcMem;
675 int sizeAnd, sizeXor;
676 HBITMAP hAndBits = 0, hXorBits = 0; /* error condition for later */
677 BITMAP bmpXor, bmpAnd;
678 POINT16 hotspot;
679 BITMAPINFO *bmi;
680 BOOL DoStretch;
681 INT size;
682
683 hotspot.x = ICON_HOTSPOT;
684 hotspot.y = ICON_HOTSPOT;
685
686 TRACE_(cursor)("%08x (%u bytes), ver %08x, %ix%i %s %s\n",
687 (unsigned)bits, cbSize, (unsigned)dwVersion, width, height,
688 bIcon ? "icon" : "cursor", (loadflags & LR_MONOCHROME) ? "mono" : "" );
689 if (dwVersion == 0x00020000)
690 {
691 FIXME_(cursor)("\t2.xx resources are not supported\n");
692 return 0;
693 }
694
695 if (bIcon)
696 bmi = (BITMAPINFO *)bits;
697 else /* get the hotspot */
698 {
699 POINT16 *pt = (POINT16 *)bits;
700 hotspot = *pt;
701 bmi = (BITMAPINFO *)(pt + 1);
702 }
703 size = bitmap_info_size( bmi, DIB_RGB_COLORS );
704
705 if (!width) width = bmi->bmiHeader.biWidth;
706 if (!height) height = bmi->bmiHeader.biHeight/2;
707 DoStretch = (bmi->bmiHeader.biHeight/2 != height) ||
708 (bmi->bmiHeader.biWidth != width);
709
710 /* Check bitmap header */
711
712 if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) &&
713 (bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) ||
714 bmi->bmiHeader.biCompression != BI_RGB) )
715 {
716 WARN_(cursor)("\tinvalid resource bitmap header.\n");
717 return 0;
718 }
719
720 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
721 if (screen_dc)
722 {
723 BITMAPINFO* pInfo;
724
725 /* Make sure we have room for the monochrome bitmap later on.
726 * Note that BITMAPINFOINFO and BITMAPCOREHEADER are the same
727 * up to and including the biBitCount. In-memory icon resource
728 * format is as follows:
729 *
730 * BITMAPINFOHEADER icHeader // DIB header
731 * RGBQUAD icColors[] // Color table
732 * BYTE icXOR[] // DIB bits for XOR mask
733 * BYTE icAND[] // DIB bits for AND mask
734 */
735
736 if ((pInfo = HeapAlloc( GetProcessHeap(), 0,
737 max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD)))))
738 {
739 memcpy( pInfo, bmi, size );
740 pInfo->bmiHeader.biHeight /= 2;
741
742 /* Create the XOR bitmap */
743
744 if (DoStretch) {
745 if(bIcon)
746 {
747 hXorBits = CreateCompatibleBitmap(screen_dc, width, height);
748 }
749 else
750 {
751 hXorBits = CreateBitmap(width, height, 1, 1, NULL);
752 }
753 if(hXorBits)
754 {
755 HBITMAP hOld;
756 BOOL res = FALSE;
757
758 if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
759 if (hdcMem) {
760 hOld = SelectObject(hdcMem, hXorBits);
761 res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
762 bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight/2,
763 (char*)bmi + size, pInfo, DIB_RGB_COLORS, SRCCOPY);
764 SelectObject(hdcMem, hOld);
765 }
766 if (!res) { DeleteObject(hXorBits); hXorBits = 0; }
767 }
768 } else {
769 if (is_dib_monochrome(bmi)) {
770 hXorBits = CreateBitmap(width, height, 1, 1, NULL);
771 SetDIBits(screen_dc, hXorBits, 0, height,
772 (char*)bmi + size, pInfo, DIB_RGB_COLORS);
773 }
774 else
775 hXorBits = CreateDIBitmap(screen_dc, &pInfo->bmiHeader,
776 CBM_INIT, (char*)bmi + size, pInfo, DIB_RGB_COLORS);
777 }
778
779 if( hXorBits )
780 {
781 char* xbits = (char *)bmi + size +
782 get_dib_width_bytes( bmi->bmiHeader.biWidth,
783 bmi->bmiHeader.biBitCount ) * abs( bmi->bmiHeader.biHeight ) / 2;
784
785 pInfo->bmiHeader.biBitCount = 1;
786 if (pInfo->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
787 {
788 RGBQUAD *rgb = pInfo->bmiColors;
789
790 pInfo->bmiHeader.biClrUsed = pInfo->bmiHeader.biClrImportant = 2;
791 rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
792 rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
793 rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
794 }
795 else
796 {
797 RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)pInfo) + 1);
798
799 rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
800 rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
801 }
802
803 /* Create the AND bitmap */
804
805 if (DoStretch) {
806 if ((hAndBits = CreateBitmap(width, height, 1, 1, NULL))) {
807 HBITMAP hOld;
808 BOOL res = FALSE;
809
810 if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
811 if (hdcMem) {
812 hOld = SelectObject(hdcMem, hAndBits);
813 res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
814 pInfo->bmiHeader.biWidth, pInfo->bmiHeader.biHeight,
815 xbits, pInfo, DIB_RGB_COLORS, SRCCOPY);
816 SelectObject(hdcMem, hOld);
817 }
818 if (!res) { DeleteObject(hAndBits); hAndBits = 0; }
819 }
820 } else {
821 hAndBits = CreateBitmap(width, height, 1, 1, NULL);
822
823 if (hAndBits) SetDIBits(screen_dc, hAndBits, 0, height,
824 xbits, pInfo, DIB_RGB_COLORS);
825
826 }
827 if( !hAndBits ) DeleteObject( hXorBits );
828 }
829 HeapFree( GetProcessHeap(), 0, pInfo );
830 }
831 }
832
833 if( !hXorBits || !hAndBits )
834 {
835 WARN_(cursor)("\tunable to create an icon bitmap.\n");
836 return 0;
837 }
838
839 /* Now create the CURSORICONINFO structure */
840 GetObjectA( hXorBits, sizeof(bmpXor), &bmpXor );
841 GetObjectA( hAndBits, sizeof(bmpAnd), &bmpAnd );
842 sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes;
843 sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
844
845 if (hObj) hObj = GlobalReAlloc16( hObj,
846 sizeof(CURSORICONINFO) + sizeXor + sizeAnd, GMEM_MOVEABLE );
847 if (!hObj) hObj = GlobalAlloc16( GMEM_MOVEABLE,
848 sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
849 if (hObj)
850 {
851 CURSORICONINFO *info;
852
853 /* Make it owned by the module */
854 if (hModule) hModule = GetExePtr(hModule);
855 FarSetOwner16( hObj, hModule );
856
857 info = (CURSORICONINFO *)GlobalLock16( hObj );
858 info->ptHotSpot.x = hotspot.x;
859 info->ptHotSpot.y = hotspot.y;
860 info->nWidth = bmpXor.bmWidth;
861 info->nHeight = bmpXor.bmHeight;
862 info->nWidthBytes = bmpXor.bmWidthBytes;
863 info->bPlanes = bmpXor.bmPlanes;
864 info->bBitsPerPixel = bmpXor.bmBitsPixel;
865
866 /* Transfer the bitmap bits to the CURSORICONINFO structure */
867
868 GetBitmapBits( hAndBits, sizeAnd, (char *)(info + 1) );
869 GetBitmapBits( hXorBits, sizeXor, (char *)(info + 1) + sizeAnd );
870 GlobalUnlock16( hObj );
871 }
872
873 DeleteObject( hAndBits );
874 DeleteObject( hXorBits );
875 return HICON_32((HICON16)hObj);
876 }
877
878
879 /**********************************************************************
880 * CreateIconFromResource (USER32.@)
881 */
882 HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize,
883 BOOL bIcon, DWORD dwVersion)
884 {
885 return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
886 }
887
888
889 /**********************************************************************
890 * CreateIconFromResourceEx (USER32.@)
891 */
892 HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
893 BOOL bIcon, DWORD dwVersion,
894 INT width, INT height,
895 UINT cFlag )
896 {
897 return CURSORICON_CreateFromResource( 0, 0, bits, cbSize, bIcon, dwVersion,
898 width, height, cFlag );
899 }
900
901 /**********************************************************************
902 * CURSORICON_Load
903 *
904 * Load a cursor or icon from resource or file.
905 */
906 static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
907 INT width, INT height, INT colors,
908 BOOL fCursor, UINT loadflags)
909 {
910 HANDLE handle = 0;
911 HICON hIcon = 0;
912 HRSRC hRsrc;
913 CURSORICONDIR *dir;
914 CURSORICONDIRENTRY *dirEntry;
915 LPBYTE bits;
916
917 if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
918 {
919 LPBYTE *ptr;
920 if (!CURSORICON_SimulateLoadingFromResourceW(name, fCursor, &dir, &ptr))
921 return 0;
922 if (fCursor)
923 dirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestCursor(dir, width, height, 1);
924 else
925 dirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestIcon(dir, width, height, colors);
926 bits = ptr[dirEntry->wResId-1];
927 hIcon = CURSORICON_CreateFromResource( 0, 0, bits, dirEntry->dwBytesInRes,
928 !fCursor, 0x00030000, width, height, loadflags);
929 HeapFree( GetProcessHeap(), 0, dir );
930 HeapFree( GetProcessHeap(), 0, ptr );
931 }
932 else /* Load from resource */
933 {
934 HRSRC hGroupRsrc;
935 WORD wResId;
936 DWORD dwBytesInRes;
937
938 if (!hInstance) hInstance = user32_module; /* Load OEM cursor/icon */
939
940 /* Normalize hInstance (must be uniquely represented for icon cache) */
941
942 if (!HIWORD( hInstance ))
943 hInstance = HINSTANCE_32(GetExePtr( HINSTANCE_16(hInstance) ));
944
945 /* Get directory resource ID */
946
947 if (!(hRsrc = FindResourceW( hInstance, name,
948 (LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
949 return 0;
950 hGroupRsrc = hRsrc;
951
952 /* Find the best entry in the directory */
953
954 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
955 if (!(dir = (CURSORICONDIR*)LockResource( handle ))) return 0;
956 if (fCursor)
957 dirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestCursor( dir,
958 width, height, 1);
959 else
960 dirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestIcon( dir,
961 width, height, colors );
962 if (!dirEntry) return 0;
963 wResId = dirEntry->wResId;
964 dwBytesInRes = dirEntry->dwBytesInRes;
965 FreeResource( handle );
966
967 /* Load the resource */
968
969 if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
970 (LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0;
971
972 /* If shared icon, check whether it was already loaded */
973 if ( (loadflags & LR_SHARED)
974 && (hIcon = CURSORICON_FindSharedIcon( hInstance, hRsrc ) ) != 0 )
975 return hIcon;
976
977 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
978 bits = (LPBYTE)LockResource( handle );
979 hIcon = CURSORICON_CreateFromResource( 0, 0, bits, dwBytesInRes,
980 !fCursor, 0x00030000, width, height, loadflags);
981 FreeResource( handle );
982
983 /* If shared icon, add to icon cache */
984
985 if ( hIcon && (loadflags & LR_SHARED) )
986 CURSORICON_AddSharedIcon( hInstance, hRsrc, hGroupRsrc, hIcon );
987 }
988
989 return hIcon;
990 }
991
992 /***********************************************************************
993 * CURSORICON_Copy
994 *
995 * Make a copy of a cursor or icon.
996 */
997 static HICON CURSORICON_Copy( HINSTANCE16 hInst16, HICON hIcon )
998 {
999 char *ptrOld, *ptrNew;
1000 int size;
1001 HICON16 hOld = HICON_16(hIcon);
1002 HICON16 hNew;
1003
1004 if (!(ptrOld = (char *)GlobalLock16( hOld ))) return 0;
1005 if (hInst16 && !(hInst16 = GetExePtr( hInst16 ))) return 0;
1006 size = GlobalSize16( hOld );
1007 hNew = GlobalAlloc16( GMEM_MOVEABLE, size );
1008 FarSetOwner16( hNew, hInst16 );
1009 ptrNew = (char *)GlobalLock16( hNew );
1010 memcpy( ptrNew, ptrOld, size );
1011 GlobalUnlock16( hOld );
1012 GlobalUnlock16( hNew );
1013 return HICON_32(hNew);
1014 }
1015
1016 /*************************************************************************
1017 * CURSORICON_ExtCopy
1018 *
1019 * Copies an Image from the Cache if LR_COPYFROMRESOURCE is specified
1020 *
1021 * PARAMS
1022 * Handle [I] handle to an Image
1023 * nType [I] Type of Handle (IMAGE_CURSOR | IMAGE_ICON)
1024 * iDesiredCX [I] The Desired width of the Image
1025 * iDesiredCY [I] The desired height of the Image
1026 * nFlags [I] The flags from CopyImage
1027 *
1028 * RETURNS
1029 * Success: The new handle of the Image
1030 *
1031 * NOTES
1032 * LR_COPYDELETEORG and LR_MONOCHROME are currently not implemented.
1033 * LR_MONOCHROME should be implemented by CURSORICON_CreateFromResource.
1034 * LR_COPYFROMRESOURCE will only work if the Image is in the Cache.
1035 *
1036 *
1037 */
1038
1039 static HICON CURSORICON_ExtCopy(HICON hIcon, UINT nType,
1040 INT iDesiredCX, INT iDesiredCY,
1041 UINT nFlags)
1042 {
1043 HICON hNew=0;
1044
1045 TRACE_(icon)("hIcon %p, nType %u, iDesiredCX %i, iDesiredCY %i, nFlags %u\n",
1046 hIcon, nType, iDesiredCX, iDesiredCY, nFlags);
1047
1048 if(hIcon == 0)
1049 {
1050 return 0;
1051 }
1052
1053 /* Best Fit or Monochrome */
1054 if( (nFlags & LR_COPYFROMRESOURCE
1055 && (iDesiredCX > 0 || iDesiredCY > 0))
1056 || nFlags & LR_MONOCHROME)
1057 {
1058 ICONCACHE* pIconCache = CURSORICON_FindCache(hIcon);
1059
1060 /* Not Found in Cache, then do a straight copy
1061 */
1062 if(pIconCache == NULL)
1063 {
1064 hNew = CURSORICON_Copy(0, hIcon);
1065 if(nFlags & LR_COPYFROMRESOURCE)
1066 {
1067 TRACE_(icon)("LR_COPYFROMRESOURCE: Failed to load from cache\n");
1068 }
1069 }
1070 else
1071 {
1072 int iTargetCY = iDesiredCY, iTargetCX = iDesiredCX;
1073 LPBYTE pBits;
1074 HANDLE hMem;
1075 HRSRC hRsrc;
1076 DWORD dwBytesInRes;
1077 WORD wResId;
1078 CURSORICONDIR *pDir;
1079 CURSORICONDIRENTRY *pDirEntry;
1080 BOOL bIsIcon = (nType == IMAGE_ICON);
1081
1082 /* Completing iDesiredCX CY for Monochrome Bitmaps if needed
1083 */
1084 if(((nFlags & LR_MONOCHROME) && !(nFlags & LR_COPYFROMRESOURCE))
1085 || (iDesiredCX == 0 && iDesiredCY == 0))
1086 {
1087 iDesiredCY = GetSystemMetrics(bIsIcon ?
1088 SM_CYICON : SM_CYCURSOR);
1089 iDesiredCX = GetSystemMetrics(bIsIcon ?
1090 SM_CXICON : SM_CXCURSOR);
1091 }
1092
1093 /* Retrieve the CURSORICONDIRENTRY
1094 */
1095 if (!(hMem = LoadResource( pIconCache->hModule ,
1096 pIconCache->hGroupRsrc)))
1097 {
1098 return 0;
1099 }
1100 if (!(pDir = (CURSORICONDIR*)LockResource( hMem )))
1101 {
1102 return 0;
1103 }
1104
1105 /* Find Best Fit
1106 */
1107 if(bIsIcon)
1108 {
1109 pDirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestIcon(
1110 pDir, iDesiredCX, iDesiredCY, 256);
1111 }
1112 else
1113 {
1114 pDirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestCursor(
1115 pDir, iDesiredCX, iDesiredCY, 1);
1116 }
1117
1118 wResId = pDirEntry->wResId;
1119 dwBytesInRes = pDirEntry->dwBytesInRes;
1120 FreeResource(hMem);
1121
1122 TRACE_(icon)("ResID %u, BytesInRes %lu, Width %d, Height %d DX %d, DY %d\n",
1123 wResId, dwBytesInRes, pDirEntry->ResInfo.icon.bWidth,
1124 pDirEntry->ResInfo.icon.bHeight, iDesiredCX, iDesiredCY);
1125
1126 /* Get the Best Fit
1127 */
1128 if (!(hRsrc = FindResourceW(pIconCache->hModule ,
1129 MAKEINTRESOURCEW(wResId), (LPWSTR)(bIsIcon ? RT_ICON : RT_CURSOR))))
1130 {
1131 return 0;
1132 }
1133 if (!(hMem = LoadResource( pIconCache->hModule , hRsrc )))
1134 {
1135 return 0;
1136 }
1137
1138 pBits = (LPBYTE)LockResource( hMem );
1139
1140 if(nFlags & LR_DEFAULTSIZE)
1141 {
1142 iTargetCY = GetSystemMetrics(SM_CYICON);
1143 iTargetCX = GetSystemMetrics(SM_CXICON);
1144 }
1145
1146 /* Create a New Icon with the proper dimension
1147 */
1148 hNew = CURSORICON_CreateFromResource( 0, 0, pBits, dwBytesInRes,
1149 bIsIcon, 0x00030000, iTargetCX, iTargetCY, nFlags);
1150 FreeResource(hMem);
1151 }
1152 }
1153 else hNew = CURSORICON_Copy(0, hIcon);
1154 return hNew;
1155 }
1156
1157
1158 /***********************************************************************
1159 * CreateCursor (USER32.@)
1160 */
1161 HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
1162 INT xHotSpot, INT yHotSpot,
1163 INT nWidth, INT nHeight,
1164 LPCVOID lpANDbits, LPCVOID lpXORbits )
1165 {
1166 CURSORICONINFO info;
1167
1168 TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
1169 nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
1170
1171 info.ptHotSpot.x = xHotSpot;
1172 info.ptHotSpot.y = yHotSpot;
1173 info.nWidth = nWidth;
1174 info.nHeight = nHeight;
1175 info.nWidthBytes = 0;
1176 info.bPlanes = 1;
1177 info.bBitsPerPixel = 1;
1178
1179 return HICON_32(CreateCursorIconIndirect16(0, &info, lpANDbits, lpXORbits));
1180 }
1181
1182
1183 /***********************************************************************
1184 * CreateIcon (USER.407)
1185 */
1186 HICON16 WINAPI CreateIcon16( HINSTANCE16 hInstance, INT16 nWidth,
1187 INT16 nHeight, BYTE bPlanes, BYTE bBitsPixel,
1188 LPCVOID lpANDbits, LPCVOID lpXORbits )
1189 {
1190 CURSORICONINFO info;
1191
1192 TRACE_(icon)("%dx%dx%d, xor=%p, and=%p\n",
1193 nWidth, nHeight, bPlanes * bBitsPixel, lpXORbits, lpANDbits);
1194
1195 info.ptHotSpot.x = ICON_HOTSPOT;
1196 info.ptHotSpot.y = ICON_HOTSPOT;
1197 info.nWidth = nWidth;
1198 info.nHeight = nHeight;
1199 info.nWidthBytes = 0;
1200 info.bPlanes = bPlanes;
1201 info.bBitsPerPixel = bBitsPixel;
1202
1203 return CreateCursorIconIndirect16( hInstance, &info, lpANDbits, lpXORbits );
1204 }
1205
1206
1207 /***********************************************************************
1208 * CreateIcon (USER32.@)
1209 *
1210 * Creates an icon based on the specified bitmaps. The bitmaps must be
1211 * provided in a device dependent format and will be resized to
1212 * (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
1213 * depth. The provided bitmaps must be top-down bitmaps.
1214 * Although Windows does not support 15bpp(*) this API must support it
1215 * for Winelib applications.
1216 *
1217 * (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
1218 * format!
1219 *
1220 * BUGS
1221 *
1222 * - The provided bitmaps are not resized!
1223 * - The documentation says the lpXORbits bitmap must be in a device
1224 * dependent format. But we must still resize it and perform depth
1225 * conversions if necessary.
1226 * - I'm a bit unsure about the how the 'device dependent format' thing works.
1227 * I did some tests on windows and found that if you provide a 16bpp bitmap
1228 * in lpXORbits, then its format but be 565 RGB if the screen's bit depth
1229 * is 16bpp but it must be 555 RGB if the screen's bit depth is anything
1230 * else. I don't know if this is part of the GDI specs or if this is a
1231 * quirk of the graphics card driver.
1232 * - You may think that we check whether the bit depths match or not
1233 * as an optimization. But the truth is that the conversion using
1234 * CreateDIBitmap does not work for some bit depth (e.g. 8bpp) and I have
1235 * no idea why.
1236 * - I'm pretty sure that all the things we do in CreateIcon should
1237 * also be done in CreateIconIndirect...
1238 */
1239 HICON WINAPI CreateIcon(
1240 HINSTANCE hInstance, /* [in] the application's hInstance */
1241 INT nWidth, /* [in] the width of the provided bitmaps */
1242 INT nHeight, /* [in] the height of the provided bitmaps */
1243 BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
1244 BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
1245 LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
1246 LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
1247 {
1248 HICON hIcon;
1249 HDC hdc;
1250
1251 TRACE_(icon)("%dx%dx%d, xor=%p, and=%p\n",
1252 nWidth, nHeight, bPlanes * bBitsPixel, lpXORbits, lpANDbits);
1253
1254 hdc=GetDC(0);
1255 if (!hdc)
1256 return 0;
1257
1258 if (GetDeviceCaps(hdc,BITSPIXEL)==bBitsPixel) {
1259 CURSORICONINFO info;
1260
1261 info.ptHotSpot.x = ICON_HOTSPOT;
1262 info.ptHotSpot.y = ICON_HOTSPOT;
1263 info.nWidth = nWidth;
1264 info.nHeight = nHeight;
1265 info.nWidthBytes = 0;
1266 info.bPlanes = bPlanes;
1267 info.bBitsPerPixel = bBitsPixel;
1268
1269 hIcon=HICON_32(CreateCursorIconIndirect16(0, &info, lpANDbits, lpXORbits));
1270 } else {
1271 ICONINFO iinfo;
1272 BITMAPINFO bmi;
1273
1274 iinfo.fIcon=TRUE;
1275 iinfo.xHotspot=ICON_HOTSPOT;
1276 iinfo.yHotspot=ICON_HOTSPOT;
1277 iinfo.hbmMask=CreateBitmap(nWidth,nHeight,1,1,lpANDbits);
1278
1279 bmi.bmiHeader.biSize=sizeof(bmi.bmiHeader);
1280 bmi.bmiHeader.biWidth=nWidth;
1281 bmi.bmiHeader.biHeight=-nHeight;
1282 bmi.bmiHeader.biPlanes=bPlanes;
1283 bmi.bmiHeader.biBitCount=bBitsPixel;
1284 bmi.bmiHeader.biCompression=BI_RGB;
1285 bmi.bmiHeader.biSizeImage=0;
1286 bmi.bmiHeader.biXPelsPerMeter=0;
1287 bmi.bmiHeader.biYPelsPerMeter=0;
1288 bmi.bmiHeader.biClrUsed=0;
1289 bmi.bmiHeader.biClrImportant=0;
1290
1291 iinfo.hbmColor = CreateDIBitmap( hdc, &bmi.bmiHeader,
1292 CBM_INIT, lpXORbits,
1293 &bmi, DIB_RGB_COLORS );
1294
1295 hIcon=CreateIconIndirect(&iinfo);
1296 DeleteObject(iinfo.hbmMask);
1297 DeleteObject(iinfo.hbmColor);
1298 }
1299 ReleaseDC(0,hdc);
1300 return hIcon;
1301 }
1302
1303
1304 /***********************************************************************
1305 * CreateCursorIconIndirect (USER.408)
1306 */
1307 HGLOBAL16 WINAPI CreateCursorIconIndirect16( HINSTANCE16 hInstance,
1308 CURSORICONINFO *info,
1309 LPCVOID lpANDbits,
1310 LPCVOID lpXORbits )
1311 {
1312 HGLOBAL16 handle;
1313 char *ptr;
1314 int sizeAnd, sizeXor;
1315
1316 hInstance = GetExePtr( hInstance ); /* Make it a module handle */
1317 if (!lpXORbits || !lpANDbits || info->bPlanes != 1) return 0;
1318 info->nWidthBytes = get_bitmap_width_bytes(info->nWidth,info->bBitsPerPixel);
1319 sizeXor = info->nHeight * info->nWidthBytes;
1320 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1321 if (!(handle = GlobalAlloc16( GMEM_MOVEABLE,
1322 sizeof(CURSORICONINFO) + sizeXor + sizeAnd)))
1323 return 0;
1324 FarSetOwner16( handle, hInstance );
1325 ptr = (char *)GlobalLock16( handle );
1326 memcpy( ptr, info, sizeof(*info) );
1327 memcpy( ptr + sizeof(CURSORICONINFO), lpANDbits, sizeAnd );
1328 memcpy( ptr + sizeof(CURSORICONINFO) + sizeAnd, lpXORbits, sizeXor );
1329 GlobalUnlock16( handle );
1330 return handle;
1331 }
1332
1333
1334 /***********************************************************************
1335 * CopyIcon (USER.368)
1336 */
1337 HICON16 WINAPI CopyIcon16( HINSTANCE16 hInstance, HICON16 hIcon )
1338 {
1339 TRACE_(icon)("%04x %04x\n", hInstance, hIcon );
1340 return HICON_16(CURSORICON_Copy(hInstance, HICON_32(hIcon)));
1341 }
1342
1343
1344 /***********************************************************************
1345 * CopyIcon (USER32.@)
1346 */
1347 HICON WINAPI CopyIcon( HICON hIcon )
1348 {
1349 TRACE_(icon)("%p\n", hIcon );
1350 return CURSORICON_Copy( 0, hIcon );
1351 }
1352
1353
1354 /***********************************************************************
1355 * CopyCursor (USER.369)
1356 */
1357 HCURSOR16 WINAPI CopyCursor16( HINSTANCE16 hInstance, HCURSOR16 hCursor )
1358 {
1359 TRACE_(cursor)("%04x %04x\n", hInstance, hCursor );
1360 return HICON_16(CURSORICON_Copy(hInstance, HCURSOR_32(hCursor)));
1361 }
1362
1363 /**********************************************************************
1364 * DestroyIcon32 (USER.610)
1365 *
1366 * This routine is actually exported from Win95 USER under the name
1367 * DestroyIcon32 ... The behaviour implemented here should mimic
1368 * the Win95 one exactly, especially the return values, which
1369 * depend on the setting of various flags.
1370 */
1371 WORD WINAPI DestroyIcon32( HGLOBAL16 handle, UINT16 flags )
1372 {
1373 WORD retv;
1374
1375 TRACE_(icon)("(%04x, %04x)\n", handle, flags );
1376
1377 /* Check whether destroying active cursor */
1378
1379 if ( get_user_thread_info()->cursor == HICON_32(handle) )
1380 {
1381 WARN_(cursor)("Destroying active cursor!\n" );
1382 SetCursor( 0 );
1383 }
1384
1385 /* Try shared cursor/icon first */
1386
1387 if ( !(flags & CID_NONSHARED) )
1388 {
1389 INT count = CURSORICON_DelSharedIcon(HICON_32(handle));
1390
1391 if ( count != -1 )
1392 return (flags & CID_WIN32)? TRUE : (count == 0);
1393
1394 /* FIXME: OEM cursors/icons should be recognized */
1395 }
1396
1397 /* Now assume non-shared cursor/icon */
1398
1399 retv = GlobalFree16( handle );
1400 return (flags & CID_RESOURCE)? retv : TRUE;
1401 }
1402
1403 /***********************************************************************
1404 * DestroyIcon (USER32.@)
1405 */
1406 BOOL WINAPI DestroyIcon( HICON hIcon )
1407 {
1408 return DestroyIcon32(HICON_16(hIcon), CID_WIN32);
1409 }
1410
1411
1412 /***********************************************************************
1413 * DestroyCursor (USER32.@)
1414 */
1415 BOOL WINAPI DestroyCursor( HCURSOR hCursor )
1416 {
1417 return DestroyIcon32(HCURSOR_16(hCursor), CID_WIN32);
1418 }
1419
1420
1421 /***********************************************************************
1422 * DrawIcon (USER32.@)
1423 */
1424 BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
1425 {
1426 CURSORICONINFO *ptr;
1427 HDC hMemDC;
1428 HBITMAP hXorBits, hAndBits;
1429 COLORREF oldFg, oldBg;
1430
1431 if (!(ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon)))) return FALSE;
1432 if (!(hMemDC = CreateCompatibleDC( hdc ))) return FALSE;
1433 hAndBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1,
1434 (char *)(ptr+1) );
1435 hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, ptr->bPlanes,
1436 ptr->bBitsPerPixel, (char *)(ptr + 1)
1437 + ptr->nHeight * get_bitmap_width_bytes(ptr->nWidth,1) );
1438 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1439 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1440
1441 if (hXorBits && hAndBits)
1442 {
1443 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
1444 BitBlt( hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0, SRCAND );
1445 SelectObject( hMemDC, hXorBits );
1446 BitBlt(hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0,SRCINVERT);
1447 SelectObject( hMemDC, hBitTemp );
1448 }
1449 DeleteDC( hMemDC );
1450 if (hXorBits) DeleteObject( hXorBits );
1451 if (hAndBits) DeleteObject( hAndBits );
1452 GlobalUnlock16(HICON_16(hIcon));
1453 SetTextColor( hdc, oldFg );
1454 SetBkColor( hdc, oldBg );
1455 return TRUE;
1456 }
1457
1458 /***********************************************************************
1459 * DumpIcon (USER.459)
1460 */
1461 DWORD WINAPI DumpIcon16( SEGPTR pInfo, WORD *lpLen,
1462 SEGPTR *lpXorBits, SEGPTR *lpAndBits )
1463 {
1464 CURSORICONINFO *info = MapSL( pInfo );
1465 int sizeAnd, sizeXor;
1466
1467 if (!info) return 0;
1468 sizeXor = info->nHeight * info->nWidthBytes;
1469 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1470 if (lpAndBits) *lpAndBits = pInfo + sizeof(CURSORICONINFO);
1471 if (lpXorBits) *lpXorBits = pInfo + sizeof(CURSORICONINFO) + sizeAnd;
1472 if (lpLen) *lpLen = sizeof(CURSORICONINFO) + sizeAnd + sizeXor;
1473 return MAKELONG( sizeXor, sizeXor );
1474 }
1475
1476
1477 /***********************************************************************
1478 * SetCursor (USER32.@)
1479 * RETURNS:
1480 * A handle to the previous cursor shape.
1481 */
1482 HCURSOR WINAPI SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
1483 {
1484 struct user_thread_info *thread_info = get_user_thread_info();
1485 HCURSOR hOldCursor;
1486
1487 if (hCursor == thread_info->cursor) return hCursor; /* No change */
1488 TRACE_(cursor)("%p\n", hCursor );
1489 hOldCursor = thread_info->cursor;
1490 thread_info->cursor = hCursor;
1491 /* Change the cursor shape only if it is visible */
1492 if (thread_info->cursor_count >= 0 && USER_Driver.pSetCursor)
1493 {
1494 USER_Driver.pSetCursor( (CURSORICONINFO*)GlobalLock16(HCURSOR_16(hCursor)) );
1495 GlobalUnlock16(HCURSOR_16(hCursor));
1496 }
1497 return hOldCursor;
1498 }
1499
1500 /***********************************************************************
1501 * ShowCursor (USER32.@)
1502 */
1503 INT WINAPI ShowCursor( BOOL bShow )
1504 {
1505 struct user_thread_info *thread_info = get_user_thread_info();
1506
1507 TRACE_(cursor)("%d, count=%d\n", bShow, thread_info->cursor_count );
1508
1509 if (bShow)
1510 {
1511 if (++thread_info->cursor_count == 0 && USER_Driver.pSetCursor) /* Show it */
1512 {
1513 USER_Driver.pSetCursor((CURSORICONINFO*)GlobalLock16(HCURSOR_16(thread_info->cursor)));
1514 GlobalUnlock16(HCURSOR_16(thread_info->cursor));
1515 }
1516 }
1517 else
1518 {
1519 if (--thread_info->cursor_count == -1 && USER_Driver.pSetCursor) /* Hide it */
1520 USER_Driver.pSetCursor( NULL );
1521 }
1522 return thread_info->cursor_count;
1523 }
1524
1525 /***********************************************************************
1526 * GetCursor (USER32.@)
1527 */
1528 HCURSOR WINAPI GetCursor(void)
1529 {
1530 return get_user_thread_info()->cursor;
1531 }
1532
1533
1534 /***********************************************************************
1535 * ClipCursor (USER32.@)
1536 */
1537 BOOL WINAPI ClipCursor( const RECT *rect )
1538 {
1539 if (!rect) SetRectEmpty( &CURSOR_ClipRect );
1540 else CopyRect( &CURSOR_ClipRect, rect );
1541 return TRUE;
1542 }
1543
1544
1545 /***********************************************************************
1546 * GetClipCursor (USER32.@)
1547 */
1548 BOOL WINAPI GetClipCursor( RECT *rect )
1549 {
1550 if (rect)
1551 {
1552 CopyRect( rect, &CURSOR_ClipRect );
1553 return TRUE;
1554 }
1555 return FALSE;
1556 }
1557
1558 /**********************************************************************
1559 * LookupIconIdFromDirectoryEx (USER.364)
1560 *
1561 * FIXME: exact parameter sizes
1562 */
1563 INT16 WINAPI LookupIconIdFromDirectoryEx16( LPBYTE dir, BOOL16 bIcon,
1564 INT16 width, INT16 height, UINT16 cFlag )
1565 {
1566 return LookupIconIdFromDirectoryEx( dir, bIcon, width, height, cFlag );
1567 }
1568
1569 /**********************************************************************
1570 * LookupIconIdFromDirectoryEx (USER32.@)
1571 */
1572 INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
1573 INT width, INT height, UINT cFlag )
1574 {
1575 CURSORICONDIR *dir = (CURSORICONDIR*)xdir;
1576 UINT retVal = 0;
1577 if( dir && !dir->idReserved && (dir->idType & 3) )
1578 {
1579 CURSORICONDIRENTRY* entry;
1580 HDC hdc;
1581 UINT palEnts;
1582 int colors;
1583 hdc = GetDC(0);
1584 palEnts = GetSystemPaletteEntries(hdc, 0, 0, NULL);
1585 if (palEnts == 0)
1586 palEnts = 256;
1587 colors = (cFlag & LR_MONOCHROME) ? 2 : palEnts;
1588
1589 ReleaseDC(0, hdc);
1590
1591 if( bIcon )
1592 entry = CURSORICON_FindBestIcon( dir, width, height, colors );
1593 else
1594 entry = CURSORICON_FindBestCursor( dir, width, height, 1);
1595
1596 if( entry ) retVal = entry->wResId;
1597 }
1598 else WARN_(cursor)("invalid resource directory\n");
1599 return retVal;
1600 }
1601
1602 /**********************************************************************
1603 * LookupIconIdFromDirectory (USER.?)
1604 */
1605 INT16 WINAPI LookupIconIdFromDirectory16( LPBYTE dir, BOOL16 bIcon )
1606 {
1607 return LookupIconIdFromDirectoryEx16( dir, bIcon,
1608 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1609 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1610 }
1611
1612 /**********************************************************************
1613 * LookupIconIdFromDirectory (USER32.@)
1614 */
1615 INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
1616 {
1617 return LookupIconIdFromDirectoryEx( dir, bIcon,
1618 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1619 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1620 }
1621
1622 /**********************************************************************
1623 * GetIconID (USER.455)
1624 */
1625 WORD WINAPI GetIconID16( HGLOBAL16 hResource, DWORD resType )
1626 {
1627 LPBYTE lpDir = (LPBYTE)GlobalLock16(hResource);
1628
1629 TRACE_(cursor)("hRes=%04x, entries=%i\n",
1630 hResource, lpDir ? ((CURSORICONDIR*)lpDir)->idCount : 0);
1631
1632 switch(resType)
1633 {
1634 case RT_CURSOR:
1635 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, FALSE,
1636 GetSystemMetrics(SM_CXCURSOR), GetSystemMetrics(SM_CYCURSOR), LR_MONOCHROME );
1637 case RT_ICON:
1638 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, TRUE,
1639 GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), 0 );
1640 default:
1641 WARN_(cursor)("invalid res type %ld\n", resType );
1642 }
1643 return 0;
1644 }
1645
1646 /**********************************************************************
1647 * LoadCursorIconHandler (USER.336)
1648 *
1649 * Supposed to load resources of Windows 2.x applications.
1650 */
1651 HGLOBAL16 WINAPI LoadCursorIconHandler16( HGLOBAL16 hResource, HMODULE16 hModule, HRSRC16 hRsrc )
1652 {
1653 FIXME_(cursor)("(%04x,%04x,%04x): old 2.x resources are not supported!\n",
1654 hResource, hModule, hRsrc);
1655 return (HGLOBAL16)0;
1656 }
1657
1658 /**********************************************************************
1659 * LoadIconHandler (USER.456)
1660 */
1661 HICON16 WINAPI LoadIconHandler16( HGLOBAL16 hResource, BOOL16 bNew )
1662 {
1663 LPBYTE bits = (LPBYTE)LockResource16( hResource );
1664
1665 TRACE_(cursor)("hRes=%04x\n",hResource);
1666
1667 return HICON_16(CURSORICON_CreateFromResource(0, 0, bits, 0, TRUE,
1668 bNew ? 0x00030000 : 0x00020000, 0, 0, LR_DEFAULTCOLOR));
1669 }
1670
1671 /***********************************************************************
1672 * LoadCursorW (USER32.@)
1673 */
1674 HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
1675 {
1676 return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
1677 LR_SHARED | LR_DEFAULTSIZE );
1678 }
1679
1680 /***********************************************************************
1681 * LoadCursorA (USER32.@)
1682 */
1683 HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
1684 {
1685 return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
1686 LR_SHARED | LR_DEFAULTSIZE );
1687 }
1688
1689 /***********************************************************************
1690 * LoadCursorFromFileW (USER32.@)
1691 */
1692 HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
1693 {
1694 return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
1695 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1696 }
1697
1698 /***********************************************************************
1699 * LoadCursorFromFileA (USER32.@)
1700 */
1701 HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
1702 {
1703 return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
1704 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1705 }
1706
1707 /***********************************************************************
1708 * LoadIconW (USER32.@)
1709 */
1710 HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
1711 {
1712 return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
1713 LR_SHARED | LR_DEFAULTSIZE );
1714 }
1715
1716 /***********************************************************************
1717 * LoadIconA (USER32.@)
1718 */
1719 HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
1720 {
1721 return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
1722 LR_SHARED | LR_DEFAULTSIZE );
1723 }
1724
1725 /**********************************************************************
1726 * GetIconInfo (USER32.@)
1727 */
1728 BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
1729 {
1730 CURSORICONINFO *ciconinfo;
1731 INT height;
1732
1733 ciconinfo = GlobalLock16(HICON_16(hIcon));
1734 if (!ciconinfo)
1735 return FALSE;
1736
1737 if ( (ciconinfo->ptHotSpot.x == ICON_HOTSPOT) &&
1738 (ciconinfo->ptHotSpot.y == ICON_HOTSPOT) )
1739 {
1740 iconinfo->fIcon = TRUE;
1741 iconinfo->xHotspot = ciconinfo->nWidth / 2;
1742 iconinfo->yHotspot = ciconinfo->nHeight / 2;
1743 }
1744 else
1745 {
1746 iconinfo->fIcon = FALSE;
1747 iconinfo->xHotspot = ciconinfo->ptHotSpot.x;
1748 iconinfo->yHotspot = ciconinfo->ptHotSpot.y;
1749 }
1750
1751 if (ciconinfo->bBitsPerPixel > 1)
1752 {
1753 iconinfo->hbmColor = CreateBitmap( ciconinfo->nWidth, ciconinfo->nHeight,
1754 ciconinfo->bPlanes, ciconinfo->bBitsPerPixel,
1755 (char *)(ciconinfo + 1)
1756 + ciconinfo->nHeight *
1757 get_bitmap_width_bytes (ciconinfo->nWidth,1) );
1758 height = ciconinfo->nHeight;
1759 }
1760 else
1761 {
1762 iconinfo->hbmColor = 0;
1763 height = ciconinfo->nHeight * 2;
1764 }
1765
1766 iconinfo->hbmMask = CreateBitmap ( ciconinfo->nWidth, height,
1767 1, 1, (char *)(ciconinfo + 1));
1768
1769 GlobalUnlock16(HICON_16(hIcon));
1770
1771 return TRUE;
1772 }
1773
1774 /**********************************************************************
1775 * CreateIconIndirect (USER32.@)
1776 */
1777 HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
1778 {
1779 BITMAP bmpXor,bmpAnd;
1780 HICON16 hObj;
1781 int sizeXor,sizeAnd;
1782
1783 GetObjectA( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
1784 GetObjectA( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
1785
1786 sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes;
1787 sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
1788
1789 hObj = GlobalAlloc16( GMEM_MOVEABLE,
1790 sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
1791 if (hObj)
1792 {
1793 CURSORICONINFO *info;
1794
1795 info = (CURSORICONINFO *)GlobalLock16( hObj );
1796
1797 /* If we are creating an icon, the hotspot is unused */
1798 if (iconinfo->fIcon)
1799 {
1800 info->ptHotSpot.x = ICON_HOTSPOT;
1801 info->ptHotSpot.y = ICON_HOTSPOT;
1802 }
1803 else
1804 {
1805 info->ptHotSpot.x = iconinfo->xHotspot;
1806 info->ptHotSpot.y = iconinfo->yHotspot;
1807 }
1808
1809 info->nWidth = bmpXor.bmWidth;
1810 info->nHeight = bmpXor.bmHeight;
1811 info->nWidthBytes = bmpXor.bmWidthBytes;
1812 info->bPlanes = bmpXor.bmPlanes;
1813 info->bBitsPerPixel = bmpXor.bmBitsPixel;
1814
1815 /* Transfer the bitmap bits to the CURSORICONINFO structure */
1816
1817 GetBitmapBits( iconinfo->hbmMask ,sizeAnd,(char*)(info + 1) );
1818 GetBitmapBits( iconinfo->hbmColor,sizeXor,(char*)(info + 1) +sizeAnd);
1819 GlobalUnlock16( hObj );
1820 }
1821 return HICON_32(hObj);
1822 }
1823
1824 /******************************************************************************
1825 * DrawIconEx (USER32.@) Draws an icon or cursor on device context
1826 *
1827 * NOTES
1828 * Why is this using SM_CXICON instead of SM_CXCURSOR?
1829 *
1830 * PARAMS
1831 * hdc [I] Handle to device context
1832 * x0 [I] X coordinate of upper left corner
1833 * y0 [I] Y coordinate of upper left corner
1834 * hIcon [I] Handle to icon to draw
1835 * cxWidth [I] Width of icon
1836 * cyWidth [I] Height of icon
1837 * istep [I] Index of frame in animated cursor
1838 * hbr [I] Handle to background brush
1839 * flags [I] Icon-drawing flags
1840 *
1841 * RETURNS
1842 * Success: TRUE
1843 * Failure: FALSE
1844 */
1845 BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
1846 INT cxWidth, INT cyWidth, UINT istep,
1847 HBRUSH hbr, UINT flags )
1848 {
1849 CURSORICONINFO *ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon));
1850 HDC hDC_off = 0, hMemDC;
1851 BOOL result = FALSE, DoOffscreen;
1852 HBITMAP hB_off = 0, hOld = 0;
1853
1854 if (!ptr) return FALSE;
1855 TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
1856 hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
1857
1858 hMemDC = CreateCompatibleDC (hdc);
1859 if (istep)
1860 FIXME_(icon)("Ignoring istep=%d\n", istep);
1861 if (flags & DI_COMPAT)
1862 FIXME_(icon)("Ignoring flag DI_COMPAT\n");
1863
1864 if (!flags) {
1865 FIXME_(icon)("no flags set? setting to DI_NORMAL\n");
1866 flags = DI_NORMAL;
1867 }
1868
1869 /* Calculate the size of the destination image. */
1870 if (cxWidth == 0)
1871 {
1872 if (flags & DI_DEFAULTSIZE)
1873 cxWidth = GetSystemMetrics (SM_CXICON);
1874 else
1875 cxWidth = ptr->nWidth;
1876 }
1877 if (cyWidth == 0)
1878 {
1879 if (flags & DI_DEFAULTSIZE)
1880 cyWidth = GetSystemMetrics (SM_CYICON);
1881 else
1882 cyWidth = ptr->nHeight;
1883 }
1884
1885 DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
1886
1887 if (DoOffscreen) {
1888 RECT r;
1889
1890 r.left = 0;
1891 r.top = 0;
1892 r.right = cxWidth;
1893 r.bottom = cxWidth;
1894
1895 hDC_off = CreateCompatibleDC(hdc);
1896 hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth);
1897 if (hDC_off && hB_off) {
1898 hOld = SelectObject(hDC_off, hB_off);
1899 FillRect(hDC_off, &r, hbr);
1900 }
1901 }
1902
1903 if (hMemDC && (!DoOffscreen || (hDC_off && hB_off)))
1904 {
1905 HBITMAP hXorBits, hAndBits;
1906 COLORREF oldFg, oldBg;
1907 INT nStretchMode;
1908
1909 nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
1910
1911 hXorBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
1912 ptr->bPlanes, ptr->bBitsPerPixel,
1913 (char *)(ptr + 1)
1914 + ptr->nHeight *
1915 get_bitmap_width_bytes(ptr->nWidth,1) );
1916 hAndBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
1917 1, 1, (char *)(ptr+1) );
1918 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1919 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1920
1921 if (hXorBits && hAndBits)
1922 {
1923 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
1924 if (flags & DI_MASK)
1925 {
1926 if (DoOffscreen)
1927 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
1928 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
1929 else
1930 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
1931 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
1932 }
1933 SelectObject( hMemDC, hXorBits );
1934 if (flags & DI_IMAGE)
1935 {
1936 if (DoOffscreen)
1937 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
1938 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
1939 else
1940 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
1941 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
1942 }
1943 SelectObject( hMemDC, hBitTemp );
1944 result = TRUE;
1945 }
1946
1947 SetTextColor( hdc, oldFg );
1948 SetBkColor( hdc, oldBg );
1949 if (hXorBits) DeleteObject( hXorBits );
1950 if (hAndBits) DeleteObject( hAndBits );
1951 SetStretchBltMode (hdc, nStretchMode);
1952 if (DoOffscreen) {
1953 BitBlt(hdc, x0, y0, cxWidth, cyWidth, hDC_off, 0, 0, SRCCOPY);
1954 SelectObject(hDC_off, hOld);
1955 }
1956 }
1957 if (hMemDC) DeleteDC( hMemDC );
1958 if (hDC_off) DeleteDC(hDC_off);
1959 if (hB_off) DeleteObject(hB_off);
1960 GlobalUnlock16(HICON_16(hIcon));
1961 return result;
1962 }
1963
1964 /***********************************************************************
1965 * DIB_FixColorsToLoadflags
1966 *
1967 * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
1968 * are in loadflags
1969 */
1970 static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
1971 {
1972 int colors;
1973 COLORREF c_W, c_S, c_F, c_L, c_C;
1974 int incr,i;
1975 RGBQUAD *ptr;
1976 int bitmap_type;
1977 LONG width;
1978 LONG height;
1979 WORD bpp;
1980 DWORD compr;
1981
1982 if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
1983 {
1984 WARN_(resource)("Invalid bitmap\n");
1985 return;
1986 }
1987
1988 if (bpp > 8) return;
1989
1990 if (bitmap_type == 0) /* BITMAPCOREHEADER */
1991 {
1992 incr = 3;
1993 colors = 1 << bpp;
1994 }
1995 else
1996 {
1997 incr = 4;
1998 colors = bmi->bmiHeader.biClrUsed;
1999 if (colors > 256) colors = 256;
2000 if (!colors && (bpp <= 8)) colors = 1 << bpp;
2001 }
2002
2003 c_W = GetSysColor(COLOR_WINDOW);
2004 c_S = GetSysColor(COLOR_3DSHADOW);
2005 c_F = GetSysColor(COLOR_3DFACE);
2006 c_L = GetSysColor(COLOR_3DLIGHT);
2007
2008 if (loadflags & LR_LOADTRANSPARENT) {
2009 switch (bpp) {
2010 case 1: pix = pix >> 7; break;
2011 case 4: pix = pix >> 4; break;
2012 case 8: break;
2013 default:
2014 WARN_(resource)("(%d): Unsupported depth\n", bpp);
2015 return;
2016 }
2017 if (pix >= colors) {
2018 WARN_(resource)("pixel has color index greater than biClrUsed!\n");
2019 return;
2020 }
2021 if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
2022 ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
2023 ptr->rgbBlue = GetBValue(c_W);
2024 ptr->rgbGreen = GetGValue(c_W);
2025 ptr->rgbRed = GetRValue(c_W);
2026 }
2027 if (loadflags & LR_LOADMAP3DCOLORS)
2028 for (i=0; i<colors; i++) {
2029 ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
2030 c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
2031 if (c_C == RGB(128, 128, 128)) {
2032 ptr->rgbRed = GetRValue(c_S);
2033 ptr->rgbGreen = GetGValue(c_S);
2034 ptr->rgbBlue = GetBValue(c_S);
2035 } else if (c_C == RGB(192, 192, 192)) {
2036 ptr->rgbRed = GetRValue(c_F);
2037 ptr->rgbGreen = GetGValue(c_F);
2038 ptr->rgbBlue = GetBValue(c_F);
2039 } else if (c_C == RGB(223, 223, 223)) {
2040 ptr->rgbRed = GetRValue(c_L);
2041 ptr->rgbGreen = GetGValue(c_L);
2042 ptr->rgbBlue = GetBValue(c_L);
2043 }
2044 }
2045 }
2046
2047
2048 /**********************************************************************
2049 * BITMAP_Load
2050 */
2051 static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name, UINT loadflags )
2052 {
2053 HBITMAP hbitmap = 0;
2054 HRSRC hRsrc;
2055 HGLOBAL handle;
2056 char *ptr = NULL;
2057 BITMAPINFO *info, *fix_info=NULL;
2058 HGLOBAL hFix;
2059 int size;
2060
2061 if (!(loadflags & LR_LOADFROMFILE))
2062 {
2063 if (!instance)
2064 {
2065 /* OEM bitmap: try to load the resource from user32.dll */
2066 if (HIWORD(name)) return 0;
2067 instance = user32_module;
2068 }
2069
2070 if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
2071 if (!(handle = LoadResource( instance, hRsrc ))) return 0;
2072
2073 if ((info = (BITMAPINFO *)LockResource( handle )) == NULL) return 0;
2074 }
2075 else
2076 {
2077 if (!(ptr = map_fileW( name, NULL ))) return 0;
2078 info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
2079 }
2080
2081 size = bitmap_info_size(info, DIB_RGB_COLORS);
2082 if ((hFix = GlobalAlloc(0, size))) fix_info=GlobalLock(hFix);
2083
2084 if (fix_info) {
2085 BYTE pix;
2086
2087 memcpy(fix_info, info, size);
2088 pix = *((LPBYTE)info + size);
2089 DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
2090 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2091
2092 if (screen_dc)
2093 {
2094 char *bits = (char *)info + size;
2095
2096 if (loadflags & LR_CREATEDIBSECTION) {
2097 DIBSECTION dib;
2098 fix_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
2099 hbitmap = CreateDIBSection(screen_dc, fix_info, DIB_RGB_COLORS, NULL, 0, 0);
2100 GetObjectA(hbitmap, sizeof(DIBSECTION), &dib);
2101 SetDIBits(screen_dc, hbitmap, 0, dib.dsBm.bmHeight, bits, info,
2102 DIB_RGB_COLORS);
2103 }
2104 else {
2105 /* If it's possible, create a monochrome bitmap */
2106
2107 LONG width;
2108 LONG height;
2109 WORD bpp;
2110 DWORD compr;
2111
2112 if (DIB_GetBitmapInfo( &fix_info->bmiHeader, &width, &height, &bpp, &compr ) != -1)
2113 {
2114 if (width < 0)
2115 TRACE("Bitmap has a negative width\n");
2116 else
2117 {
2118 /* Top-down DIBs have a negative height */
2119 if (height < 0) height = -height;
2120
2121 TRACE("width=%ld, height=%ld, bpp=%u, compr=%lu\n", width, height, bpp, compr);
2122
2123 if (is_dib_monochrome(fix_info))
2124 hbitmap = CreateBitmap(width, height, 1, 1, NULL);
2125 else
2126 hbitmap = CreateCompatibleBitmap(screen_dc, width, height);
2127
2128 SetDIBits(screen_dc, hbitmap, 0, height, bits, fix_info, DIB_RGB_COLORS);
2129 }
2130 }
2131 }
2132 }
2133
2134 GlobalUnlock(hFix);
2135 GlobalFree(hFix);
2136 }
2137
2138 if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
2139
2140 return hbitmap;
2141 }
2142
2143 /**********************************************************************
2144 * LoadImageA (USER32.@)
2145 *
2146 * FIXME: implementation lacks some features, see LR_ defines in winuser.h
2147 */
2148
2149 /* filter for page-fault exceptions */
2150 static WINE_EXCEPTION_FILTER(page_fault)
2151 {
2152 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
2153 return EXCEPTION_EXECUTE_HANDLER;
2154 return EXCEPTION_CONTINUE_SEARCH;
2155 }
2156
2157 /*********************************************************************/
2158
2159 HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
2160 INT desiredx, INT desiredy, UINT loadflags)
2161 {
2162 HANDLE res;
2163 LPWSTR u_name;
2164
2165 if (!HIWORD(name))
2166 return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
2167
2168 __TRY {
2169 DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2170 u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
2171 MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
2172 }
2173 __EXCEPT(page_fault) {
2174 SetLastError( ERROR_INVALID_PARAMETER );
2175 return 0;
2176 }
2177 __ENDTRY
2178 res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
2179 HeapFree(GetProcessHeap(), 0, u_name);
2180 return res;
2181 }
2182
2183
2184 /******************************************************************************
2185 * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
2186 *
2187 * PARAMS
2188 * hinst [I] Handle of instance that contains image
2189 * name [I] Name of image
2190 * type [I] Type of image
2191 * desiredx [I] Desired width
2192 * desiredy [I] Desired height
2193 * loadflags [I] Load flags
2194 *
2195 * RETURNS
2196 * Success: Handle to newly loaded image
2197 * Failure: NULL
2198 *
2199 * FIXME: Implementation lacks some features, see LR_ defines in winuser.h
2200 */
2201 HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
2202 INT desiredx, INT desiredy, UINT loadflags )
2203 {
2204 if (HIWORD(name)) {
2205 TRACE_(resource)("(%p,%p,%d,%d,%d,0x%08x)\n",
2206 hinst,name,type,desiredx,desiredy,loadflags);
2207 } else {
2208 TRACE_(resource)("(%p,%p,%d,%d,%d,0x%08x)\n",
2209 hinst,name,type,desiredx,desiredy,loadflags);
2210 }
2211 if (loadflags & LR_DEFAULTSIZE) {
2212 if (type == IMAGE_ICON) {
2213 if (!desiredx) desiredx = GetSystemMetrics(SM_CXICON);
2214 if (!desiredy) desiredy = GetSystemMetrics(SM_CYICON);
2215 } else if (type == IMAGE_CURSOR) {
2216 if (!desiredx) desiredx = GetSystemMetrics(SM_CXCURSOR);
2217 if (!desiredy) desiredy = GetSystemMetrics(SM_CYCURSOR);
2218 }
2219 }
2220 if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
2221 switch (type) {
2222 case IMAGE_BITMAP:
2223 return BITMAP_Load( hinst, name, loadflags );
2224
2225 case IMAGE_ICON:
2226 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2227 if (screen_dc)
2228 {
2229 UINT palEnts = GetSystemPaletteEntries(screen_dc, 0, 0, NULL);
2230 if (palEnts == 0) palEnts = 256;
2231 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2232 palEnts, FALSE, loadflags);
2233 }
2234 break;
2235
2236 case IMAGE_CURSOR:
2237 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2238 1, TRUE, loadflags);
2239 }
2240 return 0;
2241 }
2242
2243 /******************************************************************************
2244 * CopyImage (USER32.@) Creates new image and copies attributes to it
2245 *
2246 * PARAMS
2247 * hnd [I] Handle to image to copy
2248 * type [I] Type of image to copy
2249 * desiredx [I] Desired width of new image
2250 * desiredy [I] Desired height of new image
2251 * flags [I] Copy flags
2252 *
2253 * RETURNS
2254 * Success: Handle to newly created image
2255 * Failure: NULL
2256 *
2257 * FIXME: implementation still lacks nearly all features, see LR_*
2258 * defines in winuser.h
2259 */
2260 HICON WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
2261 INT desiredy, UINT flags )
2262 {
2263 switch (type)
2264 {
2265 case IMAGE_BITMAP:
2266 {
2267 HBITMAP res;
2268 BITMAP bm;
2269
2270 if (!GetObjectW( hnd, sizeof(bm), &bm )) return 0;
2271 bm.bmBits = NULL;
2272 if ((res = CreateBitmapIndirect(&bm)))
2273 {
2274 char *buf = HeapAlloc( GetProcessHeap(), 0, bm.bmWidthBytes * bm.bmHeight );
2275 GetBitmapBits( hnd, bm.bmWidthBytes * bm.bmHeight, buf );
2276 SetBitmapBits( res, bm.bmWidthBytes * bm.bmHeight, buf );
2277 HeapFree( GetProcessHeap(), 0, buf );
2278 }
2279 return (HICON)res;
2280 }
2281 case IMAGE_ICON:
2282 return CURSORICON_ExtCopy(hnd,type, desiredx, desiredy, flags);
2283 case IMAGE_CURSOR:
2284 /* Should call CURSORICON_ExtCopy but more testing
2285 * needs to be done before we change this
2286 */
2287 return CopyCursor(hnd);
2288 }
2289 return 0;
2290 }
2291
2292
2293 /******************************************************************************
2294 * LoadBitmapW (USER32.@) Loads bitmap from the executable file
2295 *
2296 * RETURNS
2297 * Success: Handle to specified bitmap
2298 * Failure: NULL
2299 */
2300 HBITMAP WINAPI LoadBitmapW(
2301 HINSTANCE instance, /* [in] Handle to application instance */
2302 LPCWSTR name) /* [in] Address of bitmap resource name */
2303 {
2304 return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2305 }
2306
2307 /**********************************************************************
2308 * LoadBitmapA (USER32.@)
2309 */
2310 HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
2311 {
2312 return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2313 }
GSOC 2012 project to enhance the control panel