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Fix set_test_val function declaration to ensure stack is left
[wine/multimedia.git] / dlls / user / cursoricon.c
blob310032caab64bf79993d169eaf9a836e2c2c575d
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 * RETURNS
1237 * Success: handle to an icon
1238 * Failure: NULL
1239 *
1240 * BUGS
1241 *
1242 * - The provided bitmaps are not resized!
1243 * - The documentation says the lpXORbits bitmap must be in a device
1244 * dependent format. But we must still resize it and perform depth
1245 * conversions if necessary.
1246 * - I'm a bit unsure about the how the 'device dependent format' thing works.
1247 * I did some tests on windows and found that if you provide a 16bpp bitmap
1248 * in lpXORbits, then its format but be 565 RGB if the screen's bit depth
1249 * is 16bpp but it must be 555 RGB if the screen's bit depth is anything
1250 * else. I don't know if this is part of the GDI specs or if this is a
1251 * quirk of the graphics card driver.
1252 * - You may think that we check whether the bit depths match or not
1253 * as an optimization. But the truth is that the conversion using
1254 * CreateDIBitmap does not work for some bit depth (e.g. 8bpp) and I have
1255 * no idea why.
1256 * - I'm pretty sure that all the things we do in CreateIcon should
1257 * also be done in CreateIconIndirect...
1258 */
1259 HICON WINAPI CreateIcon(
1260 HINSTANCE hInstance, /* [in] the application's hInstance */
1261 INT nWidth, /* [in] the width of the provided bitmaps */
1262 INT nHeight, /* [in] the height of the provided bitmaps */
1263 BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
1264 BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
1265 LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
1266 LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
1267 {
1268 HICON hIcon;
1269 HDC hdc;
1270
1271 TRACE_(icon)("%dx%dx%d, xor=%p, and=%p\n",
1272 nWidth, nHeight, bPlanes * bBitsPixel, lpXORbits, lpANDbits);
1273
1274 hdc=GetDC(0);
1275 if (!hdc)
1276 return 0;
1277
1278 if (GetDeviceCaps(hdc,BITSPIXEL)==bBitsPixel) {
1279 CURSORICONINFO info;
1280
1281 info.ptHotSpot.x = ICON_HOTSPOT;
1282 info.ptHotSpot.y = ICON_HOTSPOT;
1283 info.nWidth = nWidth;
1284 info.nHeight = nHeight;
1285 info.nWidthBytes = 0;
1286 info.bPlanes = bPlanes;
1287 info.bBitsPerPixel = bBitsPixel;
1288
1289 hIcon=HICON_32(CreateCursorIconIndirect16(0, &info, lpANDbits, lpXORbits));
1290 } else {
1291 ICONINFO iinfo;
1292 BITMAPINFO bmi;
1293
1294 iinfo.fIcon=TRUE;
1295 iinfo.xHotspot=ICON_HOTSPOT;
1296 iinfo.yHotspot=ICON_HOTSPOT;
1297 iinfo.hbmMask=CreateBitmap(nWidth,nHeight,1,1,lpANDbits);
1298
1299 bmi.bmiHeader.biSize=sizeof(bmi.bmiHeader);
1300 bmi.bmiHeader.biWidth=nWidth;
1301 bmi.bmiHeader.biHeight=-nHeight;
1302 bmi.bmiHeader.biPlanes=bPlanes;
1303 bmi.bmiHeader.biBitCount=bBitsPixel;
1304 bmi.bmiHeader.biCompression=BI_RGB;
1305 bmi.bmiHeader.biSizeImage=0;
1306 bmi.bmiHeader.biXPelsPerMeter=0;
1307 bmi.bmiHeader.biYPelsPerMeter=0;
1308 bmi.bmiHeader.biClrUsed=0;
1309 bmi.bmiHeader.biClrImportant=0;
1310
1311 iinfo.hbmColor = CreateDIBitmap( hdc, &bmi.bmiHeader,
1312 CBM_INIT, lpXORbits,
1313 &bmi, DIB_RGB_COLORS );
1314
1315 hIcon=CreateIconIndirect(&iinfo);
1316 DeleteObject(iinfo.hbmMask);
1317 DeleteObject(iinfo.hbmColor);
1318 }
1319 ReleaseDC(0,hdc);
1320 return hIcon;
1321 }
1322
1323
1324 /***********************************************************************
1325 * CreateCursorIconIndirect (USER.408)
1326 */
1327 HGLOBAL16 WINAPI CreateCursorIconIndirect16( HINSTANCE16 hInstance,
1328 CURSORICONINFO *info,
1329 LPCVOID lpANDbits,
1330 LPCVOID lpXORbits )
1331 {
1332 HGLOBAL16 handle;
1333 char *ptr;
1334 int sizeAnd, sizeXor;
1335
1336 hInstance = GetExePtr( hInstance ); /* Make it a module handle */
1337 if (!lpXORbits || !lpANDbits || info->bPlanes != 1) return 0;
1338 info->nWidthBytes = get_bitmap_width_bytes(info->nWidth,info->bBitsPerPixel);
1339 sizeXor = info->nHeight * info->nWidthBytes;
1340 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1341 if (!(handle = GlobalAlloc16( GMEM_MOVEABLE,
1342 sizeof(CURSORICONINFO) + sizeXor + sizeAnd)))
1343 return 0;
1344 FarSetOwner16( handle, hInstance );
1345 ptr = (char *)GlobalLock16( handle );
1346 memcpy( ptr, info, sizeof(*info) );
1347 memcpy( ptr + sizeof(CURSORICONINFO), lpANDbits, sizeAnd );
1348 memcpy( ptr + sizeof(CURSORICONINFO) + sizeAnd, lpXORbits, sizeXor );
1349 GlobalUnlock16( handle );
1350 return handle;
1351 }
1352
1353
1354 /***********************************************************************
1355 * CopyIcon (USER.368)
1356 */
1357 HICON16 WINAPI CopyIcon16( HINSTANCE16 hInstance, HICON16 hIcon )
1358 {
1359 TRACE_(icon)("%04x %04x\n", hInstance, hIcon );
1360 return HICON_16(CURSORICON_Copy(hInstance, HICON_32(hIcon)));
1361 }
1362
1363
1364 /***********************************************************************
1365 * CopyIcon (USER32.@)
1366 */
1367 HICON WINAPI CopyIcon( HICON hIcon )
1368 {
1369 TRACE_(icon)("%p\n", hIcon );
1370 return CURSORICON_Copy( 0, hIcon );
1371 }
1372
1373
1374 /***********************************************************************
1375 * CopyCursor (USER.369)
1376 */
1377 HCURSOR16 WINAPI CopyCursor16( HINSTANCE16 hInstance, HCURSOR16 hCursor )
1378 {
1379 TRACE_(cursor)("%04x %04x\n", hInstance, hCursor );
1380 return HICON_16(CURSORICON_Copy(hInstance, HCURSOR_32(hCursor)));
1381 }
1382
1383 /**********************************************************************
1384 * DestroyIcon32 (USER.610)
1385 *
1386 * This routine is actually exported from Win95 USER under the name
1387 * DestroyIcon32 ... The behaviour implemented here should mimic
1388 * the Win95 one exactly, especially the return values, which
1389 * depend on the setting of various flags.
1390 */
1391 WORD WINAPI DestroyIcon32( HGLOBAL16 handle, UINT16 flags )
1392 {
1393 WORD retv;
1394
1395 TRACE_(icon)("(%04x, %04x)\n", handle, flags );
1396
1397 /* Check whether destroying active cursor */
1398
1399 if ( get_user_thread_info()->cursor == HICON_32(handle) )
1400 {
1401 WARN_(cursor)("Destroying active cursor!\n" );
1402 SetCursor( 0 );
1403 }
1404
1405 /* Try shared cursor/icon first */
1406
1407 if ( !(flags & CID_NONSHARED) )
1408 {
1409 INT count = CURSORICON_DelSharedIcon(HICON_32(handle));
1410
1411 if ( count != -1 )
1412 return (flags & CID_WIN32)? TRUE : (count == 0);
1413
1414 /* FIXME: OEM cursors/icons should be recognized */
1415 }
1416
1417 /* Now assume non-shared cursor/icon */
1418
1419 retv = GlobalFree16( handle );
1420 return (flags & CID_RESOURCE)? retv : TRUE;
1421 }
1422
1423 /***********************************************************************
1424 * DestroyIcon (USER32.@)
1425 */
1426 BOOL WINAPI DestroyIcon( HICON hIcon )
1427 {
1428 return DestroyIcon32(HICON_16(hIcon), CID_WIN32);
1429 }
1430
1431
1432 /***********************************************************************
1433 * DestroyCursor (USER32.@)
1434 */
1435 BOOL WINAPI DestroyCursor( HCURSOR hCursor )
1436 {
1437 return DestroyIcon32(HCURSOR_16(hCursor), CID_WIN32);
1438 }
1439
1440
1441 /***********************************************************************
1442 * DrawIcon (USER32.@)
1443 */
1444 BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
1445 {
1446 CURSORICONINFO *ptr;
1447 HDC hMemDC;
1448 HBITMAP hXorBits, hAndBits;
1449 COLORREF oldFg, oldBg;
1450
1451 if (!(ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon)))) return FALSE;
1452 if (!(hMemDC = CreateCompatibleDC( hdc ))) return FALSE;
1453 hAndBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1,
1454 (char *)(ptr+1) );
1455 hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, ptr->bPlanes,
1456 ptr->bBitsPerPixel, (char *)(ptr + 1)
1457 + ptr->nHeight * get_bitmap_width_bytes(ptr->nWidth,1) );
1458 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1459 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1460
1461 if (hXorBits && hAndBits)
1462 {
1463 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
1464 BitBlt( hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0, SRCAND );
1465 SelectObject( hMemDC, hXorBits );
1466 BitBlt(hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0,SRCINVERT);
1467 SelectObject( hMemDC, hBitTemp );
1468 }
1469 DeleteDC( hMemDC );
1470 if (hXorBits) DeleteObject( hXorBits );
1471 if (hAndBits) DeleteObject( hAndBits );
1472 GlobalUnlock16(HICON_16(hIcon));
1473 SetTextColor( hdc, oldFg );
1474 SetBkColor( hdc, oldBg );
1475 return TRUE;
1476 }
1477
1478 /***********************************************************************
1479 * DumpIcon (USER.459)
1480 */
1481 DWORD WINAPI DumpIcon16( SEGPTR pInfo, WORD *lpLen,
1482 SEGPTR *lpXorBits, SEGPTR *lpAndBits )
1483 {
1484 CURSORICONINFO *info = MapSL( pInfo );
1485 int sizeAnd, sizeXor;
1486
1487 if (!info) return 0;
1488 sizeXor = info->nHeight * info->nWidthBytes;
1489 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1490 if (lpAndBits) *lpAndBits = pInfo + sizeof(CURSORICONINFO);
1491 if (lpXorBits) *lpXorBits = pInfo + sizeof(CURSORICONINFO) + sizeAnd;
1492 if (lpLen) *lpLen = sizeof(CURSORICONINFO) + sizeAnd + sizeXor;
1493 return MAKELONG( sizeXor, sizeXor );
1494 }
1495
1496
1497 /***********************************************************************
1498 * SetCursor (USER32.@)
1499 *
1500 * Set the cursor shape.
1501 *
1502 * RETURNS
1503 * A handle to the previous cursor shape.
1504 */
1505 HCURSOR WINAPI SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
1506 {
1507 struct user_thread_info *thread_info = get_user_thread_info();
1508 HCURSOR hOldCursor;
1509
1510 if (hCursor == thread_info->cursor) return hCursor; /* No change */
1511 TRACE_(cursor)("%p\n", hCursor );
1512 hOldCursor = thread_info->cursor;
1513 thread_info->cursor = hCursor;
1514 /* Change the cursor shape only if it is visible */
1515 if (thread_info->cursor_count >= 0)
1516 {
1517 USER_Driver->pSetCursor( (CURSORICONINFO*)GlobalLock16(HCURSOR_16(hCursor)) );
1518 GlobalUnlock16(HCURSOR_16(hCursor));
1519 }
1520 return hOldCursor;
1521 }
1522
1523 /***********************************************************************
1524 * ShowCursor (USER32.@)
1525 */
1526 INT WINAPI ShowCursor( BOOL bShow )
1527 {
1528 struct user_thread_info *thread_info = get_user_thread_info();
1529
1530 TRACE_(cursor)("%d, count=%d\n", bShow, thread_info->cursor_count );
1531
1532 if (bShow)
1533 {
1534 if (++thread_info->cursor_count == 0) /* Show it */
1535 {
1536 USER_Driver->pSetCursor((CURSORICONINFO*)GlobalLock16(HCURSOR_16(thread_info->cursor)));
1537 GlobalUnlock16(HCURSOR_16(thread_info->cursor));
1538 }
1539 }
1540 else
1541 {
1542 if (--thread_info->cursor_count == -1) /* Hide it */
1543 USER_Driver->pSetCursor( NULL );
1544 }
1545 return thread_info->cursor_count;
1546 }
1547
1548 /***********************************************************************
1549 * GetCursor (USER32.@)
1550 */
1551 HCURSOR WINAPI GetCursor(void)
1552 {
1553 return get_user_thread_info()->cursor;
1554 }
1555
1556
1557 /***********************************************************************
1558 * ClipCursor (USER32.@)
1559 */
1560 BOOL WINAPI ClipCursor( const RECT *rect )
1561 {
1562 if (!rect) SetRectEmpty( &CURSOR_ClipRect );
1563 else CopyRect( &CURSOR_ClipRect, rect );
1564 return TRUE;
1565 }
1566
1567
1568 /***********************************************************************
1569 * GetClipCursor (USER32.@)
1570 */
1571 BOOL WINAPI GetClipCursor( RECT *rect )
1572 {
1573 if (rect)
1574 {
1575 CopyRect( rect, &CURSOR_ClipRect );
1576 return TRUE;
1577 }
1578 return FALSE;
1579 }
1580
1581
1582 /***********************************************************************
1583 * SetSystemCursor (USER32.@)
1584 */
1585 BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id)
1586 {
1587 FIXME("(%p,%08lx),stub!\n", hcur, id);
1588 return TRUE;
1589 }
1590
1591
1592 /**********************************************************************
1593 * LookupIconIdFromDirectoryEx (USER.364)
1594 *
1595 * FIXME: exact parameter sizes
1596 */
1597 INT16 WINAPI LookupIconIdFromDirectoryEx16( LPBYTE dir, BOOL16 bIcon,
1598 INT16 width, INT16 height, UINT16 cFlag )
1599 {
1600 return LookupIconIdFromDirectoryEx( dir, bIcon, width, height, cFlag );
1601 }
1602
1603 /**********************************************************************
1604 * LookupIconIdFromDirectoryEx (USER32.@)
1605 */
1606 INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
1607 INT width, INT height, UINT cFlag )
1608 {
1609 CURSORICONDIR *dir = (CURSORICONDIR*)xdir;
1610 UINT retVal = 0;
1611 if( dir && !dir->idReserved && (dir->idType & 3) )
1612 {
1613 CURSORICONDIRENTRY* entry;
1614 HDC hdc;
1615 UINT palEnts;
1616 int colors;
1617 hdc = GetDC(0);
1618 palEnts = GetSystemPaletteEntries(hdc, 0, 0, NULL);
1619 if (palEnts == 0)
1620 palEnts = 256;
1621 colors = (cFlag & LR_MONOCHROME) ? 2 : palEnts;
1622
1623 ReleaseDC(0, hdc);
1624
1625 if( bIcon )
1626 entry = CURSORICON_FindBestIconRes( dir, width, height, colors );
1627 else
1628 entry = CURSORICON_FindBestCursorRes( dir, width, height, 1);
1629
1630 if( entry ) retVal = entry->wResId;
1631 }
1632 else WARN_(cursor)("invalid resource directory\n");
1633 return retVal;
1634 }
1635
1636 /**********************************************************************
1637 * LookupIconIdFromDirectory (USER.?)
1638 */
1639 INT16 WINAPI LookupIconIdFromDirectory16( LPBYTE dir, BOOL16 bIcon )
1640 {
1641 return LookupIconIdFromDirectoryEx16( dir, bIcon,
1642 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1643 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1644 }
1645
1646 /**********************************************************************
1647 * LookupIconIdFromDirectory (USER32.@)
1648 */
1649 INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
1650 {
1651 return LookupIconIdFromDirectoryEx( dir, bIcon,
1652 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1653 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1654 }
1655
1656 /**********************************************************************
1657 * GetIconID (USER.455)
1658 */
1659 WORD WINAPI GetIconID16( HGLOBAL16 hResource, DWORD resType )
1660 {
1661 LPBYTE lpDir = (LPBYTE)GlobalLock16(hResource);
1662
1663 TRACE_(cursor)("hRes=%04x, entries=%i\n",
1664 hResource, lpDir ? ((CURSORICONDIR*)lpDir)->idCount : 0);
1665
1666 switch(resType)
1667 {
1668 case RT_CURSOR:
1669 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, FALSE,
1670 GetSystemMetrics(SM_CXCURSOR), GetSystemMetrics(SM_CYCURSOR), LR_MONOCHROME );
1671 case RT_ICON:
1672 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, TRUE,
1673 GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), 0 );
1674 default:
1675 WARN_(cursor)("invalid res type %ld\n", resType );
1676 }
1677 return 0;
1678 }
1679
1680 /**********************************************************************
1681 * LoadCursorIconHandler (USER.336)
1682 *
1683 * Supposed to load resources of Windows 2.x applications.
1684 */
1685 HGLOBAL16 WINAPI LoadCursorIconHandler16( HGLOBAL16 hResource, HMODULE16 hModule, HRSRC16 hRsrc )
1686 {
1687 FIXME_(cursor)("(%04x,%04x,%04x): old 2.x resources are not supported!\n",
1688 hResource, hModule, hRsrc);
1689 return (HGLOBAL16)0;
1690 }
1691
1692 /**********************************************************************
1693 * LoadIconHandler (USER.456)
1694 */
1695 HICON16 WINAPI LoadIconHandler16( HGLOBAL16 hResource, BOOL16 bNew )
1696 {
1697 LPBYTE bits = (LPBYTE)LockResource16( hResource );
1698
1699 TRACE_(cursor)("hRes=%04x\n",hResource);
1700
1701 return HICON_16(CreateIconFromResourceEx( bits, 0, TRUE,
1702 bNew ? 0x00030000 : 0x00020000, 0, 0, LR_DEFAULTCOLOR));
1703 }
1704
1705 /***********************************************************************
1706 * LoadCursorW (USER32.@)
1707 */
1708 HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
1709 {
1710 return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
1711 LR_SHARED | LR_DEFAULTSIZE );
1712 }
1713
1714 /***********************************************************************
1715 * LoadCursorA (USER32.@)
1716 */
1717 HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
1718 {
1719 return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
1720 LR_SHARED | LR_DEFAULTSIZE );
1721 }
1722
1723 /***********************************************************************
1724 * LoadCursorFromFileW (USER32.@)
1725 */
1726 HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
1727 {
1728 return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
1729 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1730 }
1731
1732 /***********************************************************************
1733 * LoadCursorFromFileA (USER32.@)
1734 */
1735 HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
1736 {
1737 return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
1738 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1739 }
1740
1741 /***********************************************************************
1742 * LoadIconW (USER32.@)
1743 */
1744 HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
1745 {
1746 return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
1747 LR_SHARED | LR_DEFAULTSIZE );
1748 }
1749
1750 /***********************************************************************
1751 * LoadIconA (USER32.@)
1752 */
1753 HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
1754 {
1755 return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
1756 LR_SHARED | LR_DEFAULTSIZE );
1757 }
1758
1759 /**********************************************************************
1760 * GetIconInfo (USER32.@)
1761 */
1762 BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
1763 {
1764 CURSORICONINFO *ciconinfo;
1765 INT height;
1766
1767 ciconinfo = GlobalLock16(HICON_16(hIcon));
1768 if (!ciconinfo)
1769 return FALSE;
1770
1771 if ( (ciconinfo->ptHotSpot.x == ICON_HOTSPOT) &&
1772 (ciconinfo->ptHotSpot.y == ICON_HOTSPOT) )
1773 {
1774 iconinfo->fIcon = TRUE;
1775 iconinfo->xHotspot = ciconinfo->nWidth / 2;
1776 iconinfo->yHotspot = ciconinfo->nHeight / 2;
1777 }
1778 else
1779 {
1780 iconinfo->fIcon = FALSE;
1781 iconinfo->xHotspot = ciconinfo->ptHotSpot.x;
1782 iconinfo->yHotspot = ciconinfo->ptHotSpot.y;
1783 }
1784
1785 if (ciconinfo->bBitsPerPixel > 1)
1786 {
1787 iconinfo->hbmColor = CreateBitmap( ciconinfo->nWidth, ciconinfo->nHeight,
1788 ciconinfo->bPlanes, ciconinfo->bBitsPerPixel,
1789 (char *)(ciconinfo + 1)
1790 + ciconinfo->nHeight *
1791 get_bitmap_width_bytes (ciconinfo->nWidth,1) );
1792 height = ciconinfo->nHeight;
1793 }
1794 else
1795 {
1796 iconinfo->hbmColor = 0;
1797 height = ciconinfo->nHeight * 2;
1798 }
1799
1800 iconinfo->hbmMask = CreateBitmap ( ciconinfo->nWidth, height,
1801 1, 1, (char *)(ciconinfo + 1));
1802
1803 GlobalUnlock16(HICON_16(hIcon));
1804
1805 return TRUE;
1806 }
1807
1808 /**********************************************************************
1809 * CreateIconIndirect (USER32.@)
1810 */
1811 HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
1812 {
1813 BITMAP bmpXor,bmpAnd;
1814 HICON16 hObj;
1815 int sizeXor,sizeAnd;
1816
1817 if (iconinfo->hbmColor) GetObjectA( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
1818 GetObjectA( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
1819
1820 sizeXor = iconinfo->hbmColor ? (bmpXor.bmHeight * bmpXor.bmWidthBytes) : 0;
1821 sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
1822
1823 hObj = GlobalAlloc16( GMEM_MOVEABLE,
1824 sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
1825 if (hObj)
1826 {
1827 CURSORICONINFO *info;
1828
1829 info = (CURSORICONINFO *)GlobalLock16( hObj );
1830
1831 /* If we are creating an icon, the hotspot is unused */
1832 if (iconinfo->fIcon)
1833 {
1834 info->ptHotSpot.x = ICON_HOTSPOT;
1835 info->ptHotSpot.y = ICON_HOTSPOT;
1836 }
1837 else
1838 {
1839 info->ptHotSpot.x = iconinfo->xHotspot;
1840 info->ptHotSpot.y = iconinfo->yHotspot;
1841 }
1842
1843 if (iconinfo->hbmColor)
1844 {
1845 info->nWidth = bmpXor.bmWidth;
1846 info->nHeight = bmpXor.bmHeight;
1847 info->nWidthBytes = bmpXor.bmWidthBytes;
1848 info->bPlanes = bmpXor.bmPlanes;
1849 info->bBitsPerPixel = bmpXor.bmBitsPixel;
1850 }
1851 else
1852 {
1853 info->nWidth = bmpAnd.bmWidth;
1854 info->nHeight = bmpAnd.bmHeight / 2;
1855 info->nWidthBytes = bmpAnd.bmWidthBytes;
1856 info->bPlanes = bmpAnd.bmPlanes;
1857 info->bBitsPerPixel = bmpAnd.bmBitsPixel;
1858 }
1859
1860 /* Transfer the bitmap bits to the CURSORICONINFO structure */
1861
1862 GetBitmapBits( iconinfo->hbmMask, sizeAnd, (char*)(info + 1) );
1863 if (iconinfo->hbmColor) GetBitmapBits( iconinfo->hbmColor, sizeXor, (char*)(info + 1) + sizeAnd );
1864 GlobalUnlock16( hObj );
1865 }
1866 return HICON_32(hObj);
1867 }
1868
1869 /******************************************************************************
1870 * DrawIconEx (USER32.@) Draws an icon or cursor on device context
1871 *
1872 * NOTES
1873 * Why is this using SM_CXICON instead of SM_CXCURSOR?
1874 *
1875 * PARAMS
1876 * hdc [I] Handle to device context
1877 * x0 [I] X coordinate of upper left corner
1878 * y0 [I] Y coordinate of upper left corner
1879 * hIcon [I] Handle to icon to draw
1880 * cxWidth [I] Width of icon
1881 * cyWidth [I] Height of icon
1882 * istep [I] Index of frame in animated cursor
1883 * hbr [I] Handle to background brush
1884 * flags [I] Icon-drawing flags
1885 *
1886 * RETURNS
1887 * Success: TRUE
1888 * Failure: FALSE
1889 */
1890 BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
1891 INT cxWidth, INT cyWidth, UINT istep,
1892 HBRUSH hbr, UINT flags )
1893 {
1894 CURSORICONINFO *ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon));
1895 HDC hDC_off = 0, hMemDC;
1896 BOOL result = FALSE, DoOffscreen;
1897 HBITMAP hB_off = 0, hOld = 0;
1898
1899 if (!ptr) return FALSE;
1900 TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
1901 hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
1902
1903 hMemDC = CreateCompatibleDC (hdc);
1904 if (istep)
1905 FIXME_(icon)("Ignoring istep=%d\n", istep);
1906 if (flags & DI_COMPAT)
1907 FIXME_(icon)("Ignoring flag DI_COMPAT\n");
1908
1909 if (!flags) {
1910 FIXME_(icon)("no flags set? setting to DI_NORMAL\n");
1911 flags = DI_NORMAL;
1912 }
1913
1914 /* Calculate the size of the destination image. */
1915 if (cxWidth == 0)
1916 {
1917 if (flags & DI_DEFAULTSIZE)
1918 cxWidth = GetSystemMetrics (SM_CXICON);
1919 else
1920 cxWidth = ptr->nWidth;
1921 }
1922 if (cyWidth == 0)
1923 {
1924 if (flags & DI_DEFAULTSIZE)
1925 cyWidth = GetSystemMetrics (SM_CYICON);
1926 else
1927 cyWidth = ptr->nHeight;
1928 }
1929
1930 DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
1931
1932 if (DoOffscreen) {
1933 RECT r;
1934
1935 r.left = 0;
1936 r.top = 0;
1937 r.right = cxWidth;
1938 r.bottom = cxWidth;
1939
1940 hDC_off = CreateCompatibleDC(hdc);
1941 hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth);
1942 if (hDC_off && hB_off) {
1943 hOld = SelectObject(hDC_off, hB_off);
1944 FillRect(hDC_off, &r, hbr);
1945 }
1946 }
1947
1948 if (hMemDC && (!DoOffscreen || (hDC_off && hB_off)))
1949 {
1950 HBITMAP hXorBits, hAndBits;
1951 COLORREF oldFg, oldBg;
1952 INT nStretchMode;
1953
1954 nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
1955
1956 hXorBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
1957 ptr->bPlanes, ptr->bBitsPerPixel,
1958 (char *)(ptr + 1)
1959 + ptr->nHeight *
1960 get_bitmap_width_bytes(ptr->nWidth,1) );
1961 hAndBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
1962 1, 1, (char *)(ptr+1) );
1963 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1964 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1965
1966 if (hXorBits && hAndBits)
1967 {
1968 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
1969 if (flags & DI_MASK)
1970 {
1971 if (DoOffscreen)
1972 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
1973 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
1974 else
1975 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
1976 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
1977 }
1978 SelectObject( hMemDC, hXorBits );
1979 if (flags & DI_IMAGE)
1980 {
1981 if (DoOffscreen)
1982 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
1983 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
1984 else
1985 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
1986 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
1987 }
1988 SelectObject( hMemDC, hBitTemp );
1989 result = TRUE;
1990 }
1991
1992 SetTextColor( hdc, oldFg );
1993 SetBkColor( hdc, oldBg );
1994 if (hXorBits) DeleteObject( hXorBits );
1995 if (hAndBits) DeleteObject( hAndBits );
1996 SetStretchBltMode (hdc, nStretchMode);
1997 if (DoOffscreen) {
1998 BitBlt(hdc, x0, y0, cxWidth, cyWidth, hDC_off, 0, 0, SRCCOPY);
1999 SelectObject(hDC_off, hOld);
2000 }
2001 }
2002 if (hMemDC) DeleteDC( hMemDC );
2003 if (hDC_off) DeleteDC(hDC_off);
2004 if (hB_off) DeleteObject(hB_off);
2005 GlobalUnlock16(HICON_16(hIcon));
2006 return result;
2007 }
2008
2009 /***********************************************************************
2010 * DIB_FixColorsToLoadflags
2011 *
2012 * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
2013 * are in loadflags
2014 */
2015 static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
2016 {
2017 int colors;
2018 COLORREF c_W, c_S, c_F, c_L, c_C;
2019 int incr,i;
2020 RGBQUAD *ptr;
2021 int bitmap_type;
2022 LONG width;
2023 LONG height;
2024 WORD bpp;
2025 DWORD compr;
2026
2027 if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
2028 {
2029 WARN_(resource)("Invalid bitmap\n");
2030 return;
2031 }
2032
2033 if (bpp > 8) return;
2034
2035 if (bitmap_type == 0) /* BITMAPCOREHEADER */
2036 {
2037 incr = 3;
2038 colors = 1 << bpp;
2039 }
2040 else
2041 {
2042 incr = 4;
2043 colors = bmi->bmiHeader.biClrUsed;
2044 if (colors > 256) colors = 256;
2045 if (!colors && (bpp <= 8)) colors = 1 << bpp;
2046 }
2047
2048 c_W = GetSysColor(COLOR_WINDOW);
2049 c_S = GetSysColor(COLOR_3DSHADOW);
2050 c_F = GetSysColor(COLOR_3DFACE);
2051 c_L = GetSysColor(COLOR_3DLIGHT);
2052
2053 if (loadflags & LR_LOADTRANSPARENT) {
2054 switch (bpp) {
2055 case 1: pix = pix >> 7; break;
2056 case 4: pix = pix >> 4; break;
2057 case 8: break;
2058 default:
2059 WARN_(resource)("(%d): Unsupported depth\n", bpp);
2060 return;
2061 }
2062 if (pix >= colors) {
2063 WARN_(resource)("pixel has color index greater than biClrUsed!\n");
2064 return;
2065 }
2066 if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
2067 ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
2068 ptr->rgbBlue = GetBValue(c_W);
2069 ptr->rgbGreen = GetGValue(c_W);
2070 ptr->rgbRed = GetRValue(c_W);
2071 }
2072 if (loadflags & LR_LOADMAP3DCOLORS)
2073 for (i=0; i<colors; i++) {
2074 ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
2075 c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
2076 if (c_C == RGB(128, 128, 128)) {
2077 ptr->rgbRed = GetRValue(c_S);
2078 ptr->rgbGreen = GetGValue(c_S);
2079 ptr->rgbBlue = GetBValue(c_S);
2080 } else if (c_C == RGB(192, 192, 192)) {
2081 ptr->rgbRed = GetRValue(c_F);
2082 ptr->rgbGreen = GetGValue(c_F);
2083 ptr->rgbBlue = GetBValue(c_F);
2084 } else if (c_C == RGB(223, 223, 223)) {
2085 ptr->rgbRed = GetRValue(c_L);
2086 ptr->rgbGreen = GetGValue(c_L);
2087 ptr->rgbBlue = GetBValue(c_L);
2088 }
2089 }
2090 }
2091
2092
2093 /**********************************************************************
2094 * BITMAP_Load
2095 */
2096 static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
2097 INT desiredx, INT desiredy, UINT loadflags )
2098 {
2099 HBITMAP hbitmap = 0, orig_bm;
2100 HRSRC hRsrc;
2101 HGLOBAL handle;
2102 char *ptr = NULL;
2103 BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL;
2104 int size;
2105 BYTE pix;
2106 char *bits;
2107 LONG width, height, new_width, new_height;
2108 WORD bpp_dummy;
2109 DWORD compr_dummy;
2110 INT bm_type;
2111 HDC screen_mem_dc = NULL;
2112
2113 if (!(loadflags & LR_LOADFROMFILE))
2114 {
2115 if (!instance)
2116 {
2117 /* OEM bitmap: try to load the resource from user32.dll */
2118 if (HIWORD(name)) return 0;
2119 instance = user32_module;
2120 }
2121
2122 if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
2123 if (!(handle = LoadResource( instance, hRsrc ))) return 0;
2124
2125 if ((info = (BITMAPINFO *)LockResource( handle )) == NULL) return 0;
2126 }
2127 else
2128 {
2129 if (!(ptr = map_fileW( name, NULL ))) return 0;
2130 info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
2131 }
2132
2133 size = bitmap_info_size(info, DIB_RGB_COLORS);
2134 fix_info = HeapAlloc(GetProcessHeap(), 0, size);
2135 scaled_info = HeapAlloc(GetProcessHeap(), 0, size);
2136
2137 if (!fix_info || !scaled_info) goto end;
2138 memcpy(fix_info, info, size);
2139
2140 pix = *((LPBYTE)info + size);
2141 DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
2142
2143 memcpy(scaled_info, fix_info, size);
2144 bm_type = DIB_GetBitmapInfo( &fix_info->bmiHeader, &width, &height,
2145 &bpp_dummy, &compr_dummy);
2146 if(desiredx != 0)
2147 new_width = desiredx;
2148 else
2149 new_width = width;
2150
2151 if(desiredy != 0)
2152 new_height = height > 0 ? desiredy : -desiredy;
2153 else
2154 new_height = height;
2155
2156 if(bm_type == 0)
2157 {
2158 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader;
2159 core->bcWidth = new_width;
2160 core->bcHeight = new_height;
2161 }
2162 else
2163 {
2164 scaled_info->bmiHeader.biWidth = new_width;
2165 scaled_info->bmiHeader.biHeight = new_height;
2166 }
2167
2168 if (new_height < 0) new_height = -new_height;
2169
2170 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2171 if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end;
2172
2173 bits = (char *)info + size;
2174
2175 if (loadflags & LR_CREATEDIBSECTION)
2176 {
2177 scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
2178 hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0);
2179 }
2180 else
2181 {
2182 if (is_dib_monochrome(fix_info))
2183 hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL);
2184 else
2185 hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height);
2186 }
2187
2188 orig_bm = SelectObject(screen_mem_dc, hbitmap);
2189 StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
2190 SelectObject(screen_mem_dc, orig_bm);
2191
2192 end:
2193 if (screen_mem_dc) DeleteDC(screen_mem_dc);
2194 HeapFree(GetProcessHeap(), 0, scaled_info);
2195 HeapFree(GetProcessHeap(), 0, fix_info);
2196 if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
2197
2198 return hbitmap;
2199 }
2200
2201 /**********************************************************************
2202 * LoadImageA (USER32.@)
2203 *
2204 * See LoadImageW.
2205 */
2206
2207 /* filter for page-fault exceptions */
2208 static WINE_EXCEPTION_FILTER(page_fault)
2209 {
2210 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
2211 return EXCEPTION_EXECUTE_HANDLER;
2212 return EXCEPTION_CONTINUE_SEARCH;
2213 }
2214
2215 /*********************************************************************/
2216
2217 HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
2218 INT desiredx, INT desiredy, UINT loadflags)
2219 {
2220 HANDLE res;
2221 LPWSTR u_name;
2222
2223 if (!HIWORD(name))
2224 return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
2225
2226 __TRY {
2227 DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2228 u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
2229 MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
2230 }
2231 __EXCEPT(page_fault) {
2232 SetLastError( ERROR_INVALID_PARAMETER );
2233 return 0;
2234 }
2235 __ENDTRY
2236 res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
2237 HeapFree(GetProcessHeap(), 0, u_name);
2238 return res;
2239 }
2240
2241
2242 /******************************************************************************
2243 * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
2244 *
2245 * PARAMS
2246 * hinst [I] Handle of instance that contains image
2247 * name [I] Name of image
2248 * type [I] Type of image
2249 * desiredx [I] Desired width
2250 * desiredy [I] Desired height
2251 * loadflags [I] Load flags
2252 *
2253 * RETURNS
2254 * Success: Handle to newly loaded image
2255 * Failure: NULL
2256 *
2257 * FIXME: Implementation lacks some features, see LR_ defines in winuser.h
2258 */
2259 HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
2260 INT desiredx, INT desiredy, UINT loadflags )
2261 {
2262 TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n",
2263 hinst,debugstr_w(name),type,desiredx,desiredy,loadflags);
2264
2265 if (loadflags & LR_DEFAULTSIZE) {
2266 if (type == IMAGE_ICON) {
2267 if (!desiredx) desiredx = GetSystemMetrics(SM_CXICON);
2268 if (!desiredy) desiredy = GetSystemMetrics(SM_CYICON);
2269 } else if (type == IMAGE_CURSOR) {
2270 if (!desiredx) desiredx = GetSystemMetrics(SM_CXCURSOR);
2271 if (!desiredy) desiredy = GetSystemMetrics(SM_CYCURSOR);
2272 }
2273 }
2274 if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
2275 switch (type) {
2276 case IMAGE_BITMAP:
2277 return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags );
2278
2279 case IMAGE_ICON:
2280 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2281 if (screen_dc)
2282 {
2283 UINT palEnts = GetSystemPaletteEntries(screen_dc, 0, 0, NULL);
2284 if (palEnts == 0) palEnts = 256;
2285 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2286 palEnts, FALSE, loadflags);
2287 }
2288 break;
2289
2290 case IMAGE_CURSOR:
2291 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2292 1, TRUE, loadflags);
2293 }
2294 return 0;
2295 }
2296
2297 /******************************************************************************
2298 * CopyImage (USER32.@) Creates new image and copies attributes to it
2299 *
2300 * PARAMS
2301 * hnd [I] Handle to image to copy
2302 * type [I] Type of image to copy
2303 * desiredx [I] Desired width of new image
2304 * desiredy [I] Desired height of new image
2305 * flags [I] Copy flags
2306 *
2307 * RETURNS
2308 * Success: Handle to newly created image
2309 * Failure: NULL
2310 *
2311 * FIXME
2312 * implementation still lacks nearly all features, see LR_* defines in winuser.h.
2313 */
2314 HICON WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
2315 INT desiredy, UINT flags )
2316 {
2317 switch (type)
2318 {
2319 case IMAGE_BITMAP:
2320 {
2321 HBITMAP res;
2322 BITMAP bm;
2323
2324 if (!GetObjectW( hnd, sizeof(bm), &bm )) return 0;
2325 bm.bmBits = NULL;
2326 if ((res = CreateBitmapIndirect(&bm)))
2327 {
2328 char *buf = HeapAlloc( GetProcessHeap(), 0, bm.bmWidthBytes * bm.bmHeight );
2329 GetBitmapBits( hnd, bm.bmWidthBytes * bm.bmHeight, buf );
2330 SetBitmapBits( res, bm.bmWidthBytes * bm.bmHeight, buf );
2331 HeapFree( GetProcessHeap(), 0, buf );
2332 }
2333 return (HICON)res;
2334 }
2335 case IMAGE_ICON:
2336 return CURSORICON_ExtCopy(hnd,type, desiredx, desiredy, flags);
2337 case IMAGE_CURSOR:
2338 /* Should call CURSORICON_ExtCopy but more testing
2339 * needs to be done before we change this
2340 */
2341 return CopyCursor(hnd);
2342 }
2343 return 0;
2344 }
2345
2346
2347 /******************************************************************************
2348 * LoadBitmapW (USER32.@) Loads bitmap from the executable file
2349 *
2350 * RETURNS
2351 * Success: Handle to specified bitmap
2352 * Failure: NULL
2353 */
2354 HBITMAP WINAPI LoadBitmapW(
2355 HINSTANCE instance, /* [in] Handle to application instance */
2356 LPCWSTR name) /* [in] Address of bitmap resource name */
2357 {
2358 return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2359 }
2360
2361 /**********************************************************************
2362 * LoadBitmapA (USER32.@)
2363 *
2364 * See LoadBitmapW.
2365 */
2366 HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
2367 {
2368 return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2369 }
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