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push 9e645869891abdc47a8701768b7a401b196a1e38
[wine/hacks.git] / dlls / user32 / cursoricon.c
blob26676de3e66c9daf69f7031b1204baee311d4db9
1 /*
2 * Cursor and icon support
3 *
4 * Copyright 1995 Alexandre Julliard
5 * 1996 Martin Von Loewis
6 * 1997 Alex Korobka
7 * 1998 Turchanov Sergey
8 * 2007 Henri Verbeet
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 */
24
25 /*
26 * Theory:
27 *
28 * Cursors and icons are stored in a global heap block, with the
29 * following layout:
30 *
31 * CURSORICONINFO info;
32 * BYTE[] ANDbits;
33 * BYTE[] XORbits;
34 *
35 * The bits structures are in the format of a device-dependent bitmap.
36 *
37 * This layout is very sub-optimal, as the bitmap bits are stored in
38 * the X client instead of in the server like other bitmaps; however,
39 * some programs (notably Paint Brush) expect to be able to manipulate
40 * the bits directly :-(
41 */
42
43 #include "config.h"
44 #include "wine/port.h"
45
46 #include <stdarg.h>
47 #include <string.h>
48 #include <stdlib.h>
49
50 #include "windef.h"
51 #include "winbase.h"
52 #include "wingdi.h"
53 #include "winerror.h"
54 #include "wine/winbase16.h"
55 #include "wine/winuser16.h"
56 #include "wine/exception.h"
57 #include "wine/debug.h"
58 #include "user_private.h"
59
60 WINE_DEFAULT_DEBUG_CHANNEL(cursor);
61 WINE_DECLARE_DEBUG_CHANNEL(icon);
62 WINE_DECLARE_DEBUG_CHANNEL(resource);
63
64 #include "pshpack1.h"
65
66 typedef struct {
67 BYTE bWidth;
68 BYTE bHeight;
69 BYTE bColorCount;
70 BYTE bReserved;
71 WORD xHotspot;
72 WORD yHotspot;
73 DWORD dwDIBSize;
74 DWORD dwDIBOffset;
75 } CURSORICONFILEDIRENTRY;
76
77 typedef struct
78 {
79 WORD idReserved;
80 WORD idType;
81 WORD idCount;
82 CURSORICONFILEDIRENTRY idEntries[1];
83 } CURSORICONFILEDIR;
84
85 #include "poppack.h"
86
87 #define CID_RESOURCE 0x0001
88 #define CID_WIN32 0x0004
89 #define CID_NONSHARED 0x0008
90
91 static RECT CURSOR_ClipRect; /* Cursor clipping rect */
92
93 static HDC screen_dc;
94
95 static const WCHAR DISPLAYW[] = {'D','I','S','P','L','A','Y',0};
96
97 /**********************************************************************
98 * ICONCACHE for cursors/icons loaded with LR_SHARED.
99 *
100 * FIXME: This should not be allocated on the system heap, but on a
101 * subsystem-global heap (i.e. one for all Win16 processes,
102 * and one for each Win32 process).
103 */
104 typedef struct tagICONCACHE
105 {
106 struct tagICONCACHE *next;
107
108 HMODULE hModule;
109 HRSRC hRsrc;
110 HRSRC hGroupRsrc;
111 HICON hIcon;
112
113 INT count;
114
115 } ICONCACHE;
116
117 static ICONCACHE *IconAnchor = NULL;
118
119 static CRITICAL_SECTION IconCrst;
120 static CRITICAL_SECTION_DEBUG critsect_debug =
121 {
122 0, 0, &IconCrst,
123 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
124 0, 0, { (DWORD_PTR)(__FILE__ ": IconCrst") }
125 };
126 static CRITICAL_SECTION IconCrst = { &critsect_debug, -1, 0, 0, 0, 0 };
127
128 static const WORD ICON_HOTSPOT = 0x4242;
129
130
131 /***********************************************************************
132 * map_fileW
133 *
134 * Helper function to map a file to memory:
135 * name - file name
136 * [RETURN] ptr - pointer to mapped file
137 * [RETURN] filesize - pointer size of file to be stored if not NULL
138 */
139 static void *map_fileW( LPCWSTR name, LPDWORD filesize )
140 {
141 HANDLE hFile, hMapping;
142 LPVOID ptr = NULL;
143
144 hFile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL,
145 OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, 0 );
146 if (hFile != INVALID_HANDLE_VALUE)
147 {
148 hMapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
149 if (hMapping)
150 {
151 ptr = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 );
152 CloseHandle( hMapping );
153 if (filesize)
154 *filesize = GetFileSize( hFile, NULL );
155 }
156 CloseHandle( hFile );
157 }
158 return ptr;
159 }
160
161
162 /***********************************************************************
163 * get_bitmap_width_bytes
164 *
165 * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
166 * data.
167 */
168 static int get_bitmap_width_bytes( int width, int bpp )
169 {
170 switch(bpp)
171 {
172 case 1:
173 return 2 * ((width+15) / 16);
174 case 4:
175 return 2 * ((width+3) / 4);
176 case 24:
177 width *= 3;
178 /* fall through */
179 case 8:
180 return width + (width & 1);
181 case 16:
182 case 15:
183 return width * 2;
184 case 32:
185 return width * 4;
186 default:
187 WARN("Unknown depth %d, please report.\n", bpp );
188 }
189 return -1;
190 }
191
192
193 /***********************************************************************
194 * get_dib_width_bytes
195 *
196 * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
197 */
198 static int get_dib_width_bytes( int width, int depth )
199 {
200 int words;
201
202 switch(depth)
203 {
204 case 1: words = (width + 31) / 32; break;
205 case 4: words = (width + 7) / 8; break;
206 case 8: words = (width + 3) / 4; break;
207 case 15:
208 case 16: words = (width + 1) / 2; break;
209 case 24: words = (width * 3 + 3)/4; break;
210 default:
211 WARN("(%d): Unsupported depth\n", depth );
212 /* fall through */
213 case 32:
214 words = width;
215 }
216 return 4 * words;
217 }
218
219
220 /***********************************************************************
221 * bitmap_info_size
222 *
223 * Return the size of the bitmap info structure including color table.
224 */
225 static int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
226 {
227 int colors, masks = 0;
228
229 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
230 {
231 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
232 colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
233 return sizeof(BITMAPCOREHEADER) + colors *
234 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
235 }
236 else /* assume BITMAPINFOHEADER */
237 {
238 colors = info->bmiHeader.biClrUsed;
239 if (colors > 256) /* buffer overflow otherwise */
240 colors = 256;
241 if (!colors && (info->bmiHeader.biBitCount <= 8))
242 colors = 1 << info->bmiHeader.biBitCount;
243 if (info->bmiHeader.biCompression == BI_BITFIELDS) masks = 3;
244 return sizeof(BITMAPINFOHEADER) + masks * sizeof(DWORD) + colors *
245 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
246 }
247 }
248
249
250 /***********************************************************************
251 * is_dib_monochrome
252 *
253 * Returns whether a DIB can be converted to a monochrome DDB.
254 *
255 * A DIB can be converted if its color table contains only black and
256 * white. Black must be the first color in the color table.
257 *
258 * Note : If the first color in the color table is white followed by
259 * black, we can't convert it to a monochrome DDB with
260 * SetDIBits, because black and white would be inverted.
261 */
262 static BOOL is_dib_monochrome( const BITMAPINFO* info )
263 {
264 if (info->bmiHeader.biBitCount != 1) return FALSE;
265
266 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
267 {
268 const RGBTRIPLE *rgb = ((const BITMAPCOREINFO*)info)->bmciColors;
269
270 /* Check if the first color is black */
271 if ((rgb->rgbtRed == 0) && (rgb->rgbtGreen == 0) && (rgb->rgbtBlue == 0))
272 {
273 rgb++;
274
275 /* Check if the second color is white */
276 return ((rgb->rgbtRed == 0xff) && (rgb->rgbtGreen == 0xff)
277 && (rgb->rgbtBlue == 0xff));
278 }
279 else return FALSE;
280 }
281 else /* assume BITMAPINFOHEADER */
282 {
283 const RGBQUAD *rgb = info->bmiColors;
284
285 /* Check if the first color is black */
286 if ((rgb->rgbRed == 0) && (rgb->rgbGreen == 0) &&
287 (rgb->rgbBlue == 0) && (rgb->rgbReserved == 0))
288 {
289 rgb++;
290
291 /* Check if the second color is white */
292 return ((rgb->rgbRed == 0xff) && (rgb->rgbGreen == 0xff)
293 && (rgb->rgbBlue == 0xff) && (rgb->rgbReserved == 0));
294 }
295 else return FALSE;
296 }
297 }
298
299 /***********************************************************************
300 * DIB_GetBitmapInfo
301 *
302 * Get the info from a bitmap header.
303 * Return 1 for INFOHEADER, 0 for COREHEADER,
304 * 4 for V4HEADER, 5 for V5HEADER, -1 for error.
305 */
306 static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
307 LONG *height, WORD *bpp, DWORD *compr )
308 {
309 if (header->biSize == sizeof(BITMAPINFOHEADER))
310 {
311 *width = header->biWidth;
312 *height = header->biHeight;
313 *bpp = header->biBitCount;
314 *compr = header->biCompression;
315 return 1;
316 }
317 if (header->biSize == sizeof(BITMAPCOREHEADER))
318 {
319 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header;
320 *width = core->bcWidth;
321 *height = core->bcHeight;
322 *bpp = core->bcBitCount;
323 *compr = 0;
324 return 0;
325 }
326 if (header->biSize == sizeof(BITMAPV4HEADER))
327 {
328 const BITMAPV4HEADER *v4hdr = (const BITMAPV4HEADER *)header;
329 *width = v4hdr->bV4Width;
330 *height = v4hdr->bV4Height;
331 *bpp = v4hdr->bV4BitCount;
332 *compr = v4hdr->bV4V4Compression;
333 return 4;
334 }
335 if (header->biSize == sizeof(BITMAPV5HEADER))
336 {
337 const BITMAPV5HEADER *v5hdr = (const BITMAPV5HEADER *)header;
338 *width = v5hdr->bV5Width;
339 *height = v5hdr->bV5Height;
340 *bpp = v5hdr->bV5BitCount;
341 *compr = v5hdr->bV5Compression;
342 return 5;
343 }
344 ERR("(%d): unknown/wrong size for header\n", header->biSize );
345 return -1;
346 }
347
348 /**********************************************************************
349 * CURSORICON_FindSharedIcon
350 */
351 static HICON CURSORICON_FindSharedIcon( HMODULE hModule, HRSRC hRsrc )
352 {
353 HICON hIcon = 0;
354 ICONCACHE *ptr;
355
356 EnterCriticalSection( &IconCrst );
357
358 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
359 if ( ptr->hModule == hModule && ptr->hRsrc == hRsrc )
360 {
361 ptr->count++;
362 hIcon = ptr->hIcon;
363 break;
364 }
365
366 LeaveCriticalSection( &IconCrst );
367
368 return hIcon;
369 }
370
371 /*************************************************************************
372 * CURSORICON_FindCache
373 *
374 * Given a handle, find the corresponding cache element
375 *
376 * PARAMS
377 * Handle [I] handle to an Image
378 *
379 * RETURNS
380 * Success: The cache entry
381 * Failure: NULL
382 *
383 */
384 static ICONCACHE* CURSORICON_FindCache(HICON hIcon)
385 {
386 ICONCACHE *ptr;
387 ICONCACHE *pRet=NULL;
388 BOOL IsFound = FALSE;
389
390 EnterCriticalSection( &IconCrst );
391
392 for (ptr = IconAnchor; ptr != NULL && !IsFound; ptr = ptr->next)
393 {
394 if ( hIcon == ptr->hIcon )
395 {
396 IsFound = TRUE;
397 pRet = ptr;
398 }
399 }
400
401 LeaveCriticalSection( &IconCrst );
402
403 return pRet;
404 }
405
406 /**********************************************************************
407 * CURSORICON_AddSharedIcon
408 */
409 static void CURSORICON_AddSharedIcon( HMODULE hModule, HRSRC hRsrc, HRSRC hGroupRsrc, HICON hIcon )
410 {
411 ICONCACHE *ptr = HeapAlloc( GetProcessHeap(), 0, sizeof(ICONCACHE) );
412 if ( !ptr ) return;
413
414 ptr->hModule = hModule;
415 ptr->hRsrc = hRsrc;
416 ptr->hIcon = hIcon;
417 ptr->hGroupRsrc = hGroupRsrc;
418 ptr->count = 1;
419
420 EnterCriticalSection( &IconCrst );
421 ptr->next = IconAnchor;
422 IconAnchor = ptr;
423 LeaveCriticalSection( &IconCrst );
424 }
425
426 /**********************************************************************
427 * CURSORICON_DelSharedIcon
428 */
429 static INT CURSORICON_DelSharedIcon( HICON hIcon )
430 {
431 INT count = -1;
432 ICONCACHE *ptr;
433
434 EnterCriticalSection( &IconCrst );
435
436 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
437 if ( ptr->hIcon == hIcon )
438 {
439 if ( ptr->count > 0 ) ptr->count--;
440 count = ptr->count;
441 break;
442 }
443
444 LeaveCriticalSection( &IconCrst );
445
446 return count;
447 }
448
449 /**********************************************************************
450 * CURSORICON_FreeModuleIcons
451 */
452 void CURSORICON_FreeModuleIcons( HMODULE16 hMod16 )
453 {
454 ICONCACHE **ptr = &IconAnchor;
455 HMODULE hModule = HMODULE_32(GetExePtr( hMod16 ));
456
457 EnterCriticalSection( &IconCrst );
458
459 while ( *ptr )
460 {
461 if ( (*ptr)->hModule == hModule )
462 {
463 ICONCACHE *freePtr = *ptr;
464 *ptr = freePtr->next;
465
466 GlobalFree16(HICON_16(freePtr->hIcon));
467 HeapFree( GetProcessHeap(), 0, freePtr );
468 continue;
469 }
470 ptr = &(*ptr)->next;
471 }
472
473 LeaveCriticalSection( &IconCrst );
474 }
475
476 /*
477 * The following macro functions account for the irregularities of
478 * accessing cursor and icon resources in files and resource entries.
479 */
480 typedef BOOL (*fnGetCIEntry)( LPVOID dir, int n,
481 int *width, int *height, int *bits );
482
483 /**********************************************************************
484 * CURSORICON_FindBestIcon
485 *
486 * Find the icon closest to the requested size and number of colors.
487 */
488 static int CURSORICON_FindBestIcon( LPVOID dir, fnGetCIEntry get_entry,
489 int width, int height, int colors )
490 {
491 int i, cx, cy, bits, bestEntry = -1;
492 UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
493 UINT iTempXDiff, iTempYDiff, iTempColorDiff;
494
495 /* Find Best Fit */
496 iTotalDiff = 0xFFFFFFFF;
497 iColorDiff = 0xFFFFFFFF;
498 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
499 {
500 iTempXDiff = abs(width - cx);
501 iTempYDiff = abs(height - cy);
502
503 if(iTotalDiff > (iTempXDiff + iTempYDiff))
504 {
505 iXDiff = iTempXDiff;
506 iYDiff = iTempYDiff;
507 iTotalDiff = iXDiff + iYDiff;
508 }
509 }
510
511 /* Find Best Colors for Best Fit */
512 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
513 {
514 if(abs(width - cx) == iXDiff && abs(height - cy) == iYDiff)
515 {
516 iTempColorDiff = abs(colors - (1<<bits));
517 if(iColorDiff > iTempColorDiff)
518 {
519 bestEntry = i;
520 iColorDiff = iTempColorDiff;
521 }
522 }
523 }
524
525 return bestEntry;
526 }
527
528 static BOOL CURSORICON_GetResIconEntry( LPVOID dir, int n,
529 int *width, int *height, int *bits )
530 {
531 CURSORICONDIR *resdir = dir;
532 ICONRESDIR *icon;
533
534 if ( resdir->idCount <= n )
535 return FALSE;
536 icon = &resdir->idEntries[n].ResInfo.icon;
537 *width = icon->bWidth;
538 *height = icon->bHeight;
539 *bits = resdir->idEntries[n].wBitCount;
540 return TRUE;
541 }
542
543 /**********************************************************************
544 * CURSORICON_FindBestCursor
545 *
546 * Find the cursor closest to the requested size.
547 * FIXME: parameter 'color' ignored and entries with more than 1 bpp
548 * ignored too
549 */
550 static int CURSORICON_FindBestCursor( LPVOID dir, fnGetCIEntry get_entry,
551 int width, int height, int color )
552 {
553 int i, maxwidth, maxheight, cx, cy, bits, bestEntry = -1;
554
555 /* Double height to account for AND and XOR masks */
556
557 height *= 2;
558
559 /* First find the largest one smaller than or equal to the requested size*/
560
561 maxwidth = maxheight = 0;
562 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
563 {
564 if ((cx <= width) && (cy <= height) &&
565 (cx > maxwidth) && (cy > maxheight) &&
566 (bits == 1))
567 {
568 bestEntry = i;
569 maxwidth = cx;
570 maxheight = cy;
571 }
572 }
573 if (bestEntry != -1) return bestEntry;
574
575 /* Now find the smallest one larger than the requested size */
576
577 maxwidth = maxheight = 255;
578 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
579 {
580 if (((cx < maxwidth) && (cy < maxheight) && (bits == 1)) ||
581 (bestEntry==-1))
582 {
583 bestEntry = i;
584 maxwidth = cx;
585 maxheight = cy;
586 }
587 }
588
589 return bestEntry;
590 }
591
592 static BOOL CURSORICON_GetResCursorEntry( LPVOID dir, int n,
593 int *width, int *height, int *bits )
594 {
595 CURSORICONDIR *resdir = dir;
596 CURSORDIR *cursor;
597
598 if ( resdir->idCount <= n )
599 return FALSE;
600 cursor = &resdir->idEntries[n].ResInfo.cursor;
601 *width = cursor->wWidth;
602 *height = cursor->wHeight;
603 *bits = resdir->idEntries[n].wBitCount;
604 return TRUE;
605 }
606
607 static CURSORICONDIRENTRY *CURSORICON_FindBestIconRes( CURSORICONDIR * dir,
608 int width, int height, int colors )
609 {
610 int n;
611
612 n = CURSORICON_FindBestIcon( dir, CURSORICON_GetResIconEntry,
613 width, height, colors );
614 if ( n < 0 )
615 return NULL;
616 return &dir->idEntries[n];
617 }
618
619 static CURSORICONDIRENTRY *CURSORICON_FindBestCursorRes( CURSORICONDIR *dir,
620 int width, int height, int color )
621 {
622 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetResCursorEntry,
623 width, height, color );
624 if ( n < 0 )
625 return NULL;
626 return &dir->idEntries[n];
627 }
628
629 static BOOL CURSORICON_GetFileEntry( LPVOID dir, int n,
630 int *width, int *height, int *bits )
631 {
632 CURSORICONFILEDIR *filedir = dir;
633 CURSORICONFILEDIRENTRY *entry;
634
635 if ( filedir->idCount <= n )
636 return FALSE;
637 entry = &filedir->idEntries[n];
638 *width = entry->bWidth;
639 *height = entry->bHeight;
640 *bits = entry->bColorCount;
641 return TRUE;
642 }
643
644 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestCursorFile( CURSORICONFILEDIR *dir,
645 int width, int height, int color )
646 {
647 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetFileEntry,
648 width, height, color );
649 if ( n < 0 )
650 return NULL;
651 return &dir->idEntries[n];
652 }
653
654 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestIconFile( CURSORICONFILEDIR *dir,
655 int width, int height, int color )
656 {
657 int n = CURSORICON_FindBestIcon( dir, CURSORICON_GetFileEntry,
658 width, height, color );
659 if ( n < 0 )
660 return NULL;
661 return &dir->idEntries[n];
662 }
663
664 static HICON CURSORICON_CreateIconFromBMI( BITMAPINFO *bmi,
665 POINT16 hotspot, BOOL bIcon,
666 DWORD dwVersion,
667 INT width, INT height,
668 UINT cFlag )
669 {
670 HGLOBAL16 hObj;
671 static HDC hdcMem;
672 int sizeAnd, sizeXor;
673 HBITMAP hAndBits = 0, hXorBits = 0; /* error condition for later */
674 BITMAP bmpXor, bmpAnd;
675 BOOL DoStretch;
676 INT size;
677
678 if (dwVersion == 0x00020000)
679 {
680 FIXME_(cursor)("\t2.xx resources are not supported\n");
681 return 0;
682 }
683
684 /* Check bitmap header */
685
686 if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) &&
687 (bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) ||
688 bmi->bmiHeader.biCompression != BI_RGB) )
689 {
690 WARN_(cursor)("\tinvalid resource bitmap header.\n");
691 return 0;
692 }
693
694 size = bitmap_info_size( bmi, DIB_RGB_COLORS );
695
696 if (!width) width = bmi->bmiHeader.biWidth;
697 if (!height) height = bmi->bmiHeader.biHeight/2;
698 DoStretch = (bmi->bmiHeader.biHeight/2 != height) ||
699 (bmi->bmiHeader.biWidth != width);
700
701 /* Scale the hotspot */
702 if (DoStretch && hotspot.x != ICON_HOTSPOT && hotspot.y != ICON_HOTSPOT)
703 {
704 hotspot.x = (hotspot.x * width) / bmi->bmiHeader.biWidth;
705 hotspot.y = (hotspot.y * height) / (bmi->bmiHeader.biHeight / 2);
706 }
707
708 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
709 if (screen_dc)
710 {
711 BITMAPINFO* pInfo;
712
713 /* Make sure we have room for the monochrome bitmap later on.
714 * Note that BITMAPINFOINFO and BITMAPCOREHEADER are the same
715 * up to and including the biBitCount. In-memory icon resource
716 * format is as follows:
717 *
718 * BITMAPINFOHEADER icHeader // DIB header
719 * RGBQUAD icColors[] // Color table
720 * BYTE icXOR[] // DIB bits for XOR mask
721 * BYTE icAND[] // DIB bits for AND mask
722 */
723
724 if ((pInfo = HeapAlloc( GetProcessHeap(), 0,
725 max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD)))))
726 {
727 memcpy( pInfo, bmi, size );
728 pInfo->bmiHeader.biHeight /= 2;
729
730 /* Create the XOR bitmap */
731
732 if (DoStretch) {
733 hXorBits = CreateCompatibleBitmap(screen_dc, width, height);
734 if(hXorBits)
735 {
736 HBITMAP hOld;
737 BOOL res = FALSE;
738
739 if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
740 if (hdcMem) {
741 hOld = SelectObject(hdcMem, hXorBits);
742 res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
743 bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight/2,
744 (char*)bmi + size, pInfo, DIB_RGB_COLORS, SRCCOPY);
745 SelectObject(hdcMem, hOld);
746 }
747 if (!res) { DeleteObject(hXorBits); hXorBits = 0; }
748 }
749 } else {
750 if (is_dib_monochrome(bmi)) {
751 hXorBits = CreateBitmap(width, height, 1, 1, NULL);
752 SetDIBits(screen_dc, hXorBits, 0, height,
753 (char*)bmi + size, pInfo, DIB_RGB_COLORS);
754 }
755 else
756 hXorBits = CreateDIBitmap(screen_dc, &pInfo->bmiHeader,
757 CBM_INIT, (char*)bmi + size, pInfo, DIB_RGB_COLORS);
758 }
759
760 if( hXorBits )
761 {
762 char* xbits = (char *)bmi + size +
763 get_dib_width_bytes( bmi->bmiHeader.biWidth,
764 bmi->bmiHeader.biBitCount ) * abs( bmi->bmiHeader.biHeight ) / 2;
765
766 pInfo->bmiHeader.biBitCount = 1;
767 if (pInfo->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
768 {
769 RGBQUAD *rgb = pInfo->bmiColors;
770
771 pInfo->bmiHeader.biClrUsed = pInfo->bmiHeader.biClrImportant = 2;
772 rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
773 rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
774 rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
775 }
776 else
777 {
778 RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)pInfo) + 1);
779
780 rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
781 rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
782 }
783
784 /* Create the AND bitmap */
785
786 if (DoStretch) {
787 if ((hAndBits = CreateBitmap(width, height, 1, 1, NULL))) {
788 HBITMAP hOld;
789 BOOL res = FALSE;
790
791 if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
792 if (hdcMem) {
793 hOld = SelectObject(hdcMem, hAndBits);
794 res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
795 pInfo->bmiHeader.biWidth, pInfo->bmiHeader.biHeight,
796 xbits, pInfo, DIB_RGB_COLORS, SRCCOPY);
797 SelectObject(hdcMem, hOld);
798 }
799 if (!res) { DeleteObject(hAndBits); hAndBits = 0; }
800 }
801 } else {
802 hAndBits = CreateBitmap(width, height, 1, 1, NULL);
803
804 if (hAndBits) SetDIBits(screen_dc, hAndBits, 0, height,
805 xbits, pInfo, DIB_RGB_COLORS);
806
807 }
808 if( !hAndBits ) DeleteObject( hXorBits );
809 }
810 HeapFree( GetProcessHeap(), 0, pInfo );
811 }
812 }
813
814 if( !hXorBits || !hAndBits )
815 {
816 WARN_(cursor)("\tunable to create an icon bitmap.\n");
817 return 0;
818 }
819
820 /* Now create the CURSORICONINFO structure */
821 GetObjectA( hXorBits, sizeof(bmpXor), &bmpXor );
822 GetObjectA( hAndBits, sizeof(bmpAnd), &bmpAnd );
823 sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes;
824 sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
825
826 hObj = GlobalAlloc16( GMEM_MOVEABLE,
827 sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
828 if (hObj)
829 {
830 CURSORICONINFO *info;
831
832 info = GlobalLock16( hObj );
833 info->ptHotSpot.x = hotspot.x;
834 info->ptHotSpot.y = hotspot.y;
835 info->nWidth = bmpXor.bmWidth;
836 info->nHeight = bmpXor.bmHeight;
837 info->nWidthBytes = bmpXor.bmWidthBytes;
838 info->bPlanes = bmpXor.bmPlanes;
839 info->bBitsPerPixel = bmpXor.bmBitsPixel;
840
841 /* Transfer the bitmap bits to the CURSORICONINFO structure */
842
843 GetBitmapBits( hAndBits, sizeAnd, (char *)(info + 1) );
844 GetBitmapBits( hXorBits, sizeXor, (char *)(info + 1) + sizeAnd );
845 GlobalUnlock16( hObj );
846 }
847
848 DeleteObject( hAndBits );
849 DeleteObject( hXorBits );
850 return HICON_32(hObj);
851 }
852
853
854 /**********************************************************************
855 * .ANI cursor support
856 */
857 #define RIFF_FOURCC( c0, c1, c2, c3 ) \
858 ( (DWORD)(BYTE)(c0) | ( (DWORD)(BYTE)(c1) << 8 ) | \
859 ( (DWORD)(BYTE)(c2) << 16 ) | ( (DWORD)(BYTE)(c3) << 24 ) )
860
861 #define ANI_RIFF_ID RIFF_FOURCC('R', 'I', 'F', 'F')
862 #define ANI_LIST_ID RIFF_FOURCC('L', 'I', 'S', 'T')
863 #define ANI_ACON_ID RIFF_FOURCC('A', 'C', 'O', 'N')
864 #define ANI_anih_ID RIFF_FOURCC('a', 'n', 'i', 'h')
865 #define ANI_seq__ID RIFF_FOURCC('s', 'e', 'q', ' ')
866 #define ANI_fram_ID RIFF_FOURCC('f', 'r', 'a', 'm')
867
868 #define ANI_FLAG_ICON 0x1
869 #define ANI_FLAG_SEQUENCE 0x2
870
871 typedef struct {
872 DWORD header_size;
873 DWORD num_frames;
874 DWORD num_steps;
875 DWORD width;
876 DWORD height;
877 DWORD bpp;
878 DWORD num_planes;
879 DWORD display_rate;
880 DWORD flags;
881 } ani_header;
882
883 typedef struct {
884 DWORD data_size;
885 const unsigned char *data;
886 } riff_chunk_t;
887
888 static void dump_ani_header( const ani_header *header )
889 {
890 TRACE(" header size: %d\n", header->header_size);
891 TRACE(" frames: %d\n", header->num_frames);
892 TRACE(" steps: %d\n", header->num_steps);
893 TRACE(" width: %d\n", header->width);
894 TRACE(" height: %d\n", header->height);
895 TRACE(" bpp: %d\n", header->bpp);
896 TRACE(" planes: %d\n", header->num_planes);
897 TRACE(" display rate: %d\n", header->display_rate);
898 TRACE(" flags: 0x%08x\n", header->flags);
899 }
900
901
902 /*
903 * RIFF:
904 * DWORD "RIFF"
905 * DWORD size
906 * DWORD riff_id
907 * BYTE[] data
908 *
909 * LIST:
910 * DWORD "LIST"
911 * DWORD size
912 * DWORD list_id
913 * BYTE[] data
914 *
915 * CHUNK:
916 * DWORD chunk_id
917 * DWORD size
918 * BYTE[] data
919 */
920 static void riff_find_chunk( DWORD chunk_id, DWORD chunk_type, const riff_chunk_t *parent_chunk, riff_chunk_t *chunk )
921 {
922 const unsigned char *ptr = parent_chunk->data;
923 const unsigned char *end = parent_chunk->data + (parent_chunk->data_size - (2 * sizeof(DWORD)));
924
925 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) end -= sizeof(DWORD);
926
927 while (ptr < end)
928 {
929 if ((!chunk_type && *(DWORD *)ptr == chunk_id )
930 || (chunk_type && *(DWORD *)ptr == chunk_type && *((DWORD *)ptr + 2) == chunk_id ))
931 {
932 ptr += sizeof(DWORD);
933 chunk->data_size = *(DWORD *)ptr;
934 ptr += sizeof(DWORD);
935 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) ptr += sizeof(DWORD);
936 chunk->data = ptr;
937
938 return;
939 }
940
941 ptr += sizeof(DWORD);
942 ptr += *(DWORD *)ptr;
943 ptr += sizeof(DWORD);
944 }
945 }
946
947
948 /*
949 * .ANI layout:
950 *
951 * RIFF:'ACON' RIFF chunk
952 * |- CHUNK:'anih' Header
953 * |- CHUNK:'seq ' Sequence information (optional)
954 * \- LIST:'fram' Frame list
955 * |- CHUNK:icon Cursor frames
956 * |- CHUNK:icon
957 * |- ...
958 * \- CHUNK:icon
959 */
960 static HCURSOR CURSORICON_CreateIconFromANI( const LPBYTE bits, DWORD bits_size,
961 INT width, INT height )
962 {
963 HCURSOR cursor;
964 ani_header header = {0};
965 LPBYTE frame_bits = 0;
966 POINT16 hotspot;
967 CURSORICONFILEDIRENTRY *entry;
968
969 riff_chunk_t root_chunk = { bits_size, bits };
970 riff_chunk_t ACON_chunk = {0};
971 riff_chunk_t anih_chunk = {0};
972 riff_chunk_t fram_chunk = {0};
973 const unsigned char *icon_data;
974
975 TRACE("bits %p, bits_size %d\n", bits, bits_size);
976
977 if (!bits) return 0;
978
979 riff_find_chunk( ANI_ACON_ID, ANI_RIFF_ID, &root_chunk, &ACON_chunk );
980 if (!ACON_chunk.data)
981 {
982 ERR("Failed to get root chunk.\n");
983 return 0;
984 }
985
986 riff_find_chunk( ANI_anih_ID, 0, &ACON_chunk, &anih_chunk );
987 if (!anih_chunk.data)
988 {
989 ERR("Failed to get 'anih' chunk.\n");
990 return 0;
991 }
992 memcpy( &header, anih_chunk.data, sizeof(header) );
993 dump_ani_header( &header );
994
995 riff_find_chunk( ANI_fram_ID, ANI_LIST_ID, &ACON_chunk, &fram_chunk );
996 if (!fram_chunk.data)
997 {
998 ERR("Failed to get icon list.\n");
999 return 0;
1000 }
1001
1002 /* FIXME: For now, just load the first frame. Before we can load all the
1003 * frames, we need to write the needed code in wineserver, etc. to handle
1004 * cursors. Once this code is written, we can extend it to support .ani
1005 * cursors and then update user32 and winex11.drv to load all frames.
1006 *
1007 * Hopefully this will at least make some games (C&C3, etc.) more playable
1008 * in the meantime.
1009 */
1010 FIXME("Loading all frames for .ani cursors not implemented.\n");
1011 icon_data = fram_chunk.data + (2 * sizeof(DWORD));
1012
1013 entry = CURSORICON_FindBestCursorFile( (CURSORICONFILEDIR *) icon_data,
1014 width, height, 1 );
1015
1016 frame_bits = HeapAlloc( GetProcessHeap(), 0, entry->dwDIBSize );
1017 memcpy( frame_bits, icon_data + entry->dwDIBOffset, entry->dwDIBSize );
1018
1019 if (!header.width || !header.height)
1020 {
1021 header.width = entry->bWidth;
1022 header.height = entry->bHeight;
1023 }
1024
1025 hotspot.x = entry->xHotspot;
1026 hotspot.y = entry->yHotspot;
1027
1028 cursor = CURSORICON_CreateIconFromBMI( (BITMAPINFO *) frame_bits, hotspot,
1029 FALSE, 0x00030000, header.width, header.height, 0 );
1030
1031 HeapFree( GetProcessHeap(), 0, frame_bits );
1032
1033 return cursor;
1034 }
1035
1036
1037 /**********************************************************************
1038 * CreateIconFromResourceEx (USER32.@)
1039 *
1040 * FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
1041 * with cbSize parameter as well.
1042 */
1043 HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
1044 BOOL bIcon, DWORD dwVersion,
1045 INT width, INT height,
1046 UINT cFlag )
1047 {
1048 POINT16 hotspot;
1049 BITMAPINFO *bmi;
1050
1051 hotspot.x = ICON_HOTSPOT;
1052 hotspot.y = ICON_HOTSPOT;
1053
1054 TRACE_(cursor)("%p (%u bytes), ver %08x, %ix%i %s %s\n",
1055 bits, cbSize, dwVersion, width, height,
1056 bIcon ? "icon" : "cursor", (cFlag & LR_MONOCHROME) ? "mono" : "" );
1057
1058 if (bIcon)
1059 bmi = (BITMAPINFO *)bits;
1060 else /* get the hotspot */
1061 {
1062 POINT16 *pt = (POINT16 *)bits;
1063 hotspot = *pt;
1064 bmi = (BITMAPINFO *)(pt + 1);
1065 }
1066
1067 return CURSORICON_CreateIconFromBMI( bmi, hotspot, bIcon, dwVersion,
1068 width, height, cFlag );
1069 }
1070
1071
1072 /**********************************************************************
1073 * CreateIconFromResource (USER32.@)
1074 */
1075 HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize,
1076 BOOL bIcon, DWORD dwVersion)
1077 {
1078 return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
1079 }
1080
1081
1082 static HICON CURSORICON_LoadFromFile( LPCWSTR filename,
1083 INT width, INT height, INT colors,
1084 BOOL fCursor, UINT loadflags)
1085 {
1086 CURSORICONFILEDIRENTRY *entry;
1087 CURSORICONFILEDIR *dir;
1088 DWORD filesize = 0;
1089 HICON hIcon = 0;
1090 LPBYTE bits;
1091 POINT16 hotspot;
1092
1093 TRACE("loading %s\n", debugstr_w( filename ));
1094
1095 bits = map_fileW( filename, &filesize );
1096 if (!bits)
1097 return hIcon;
1098
1099 /* Check for .ani. */
1100 if (memcmp( bits, "RIFF", 4 ) == 0)
1101 {
1102 hIcon = CURSORICON_CreateIconFromANI( bits, filesize, width, height );
1103 goto end;
1104 }
1105
1106 dir = (CURSORICONFILEDIR*) bits;
1107 if ( filesize < sizeof(*dir) )
1108 goto end;
1109
1110 if ( filesize < (sizeof(*dir) + sizeof(dir->idEntries[0])*(dir->idCount-1)) )
1111 goto end;
1112
1113 if ( fCursor )
1114 entry = CURSORICON_FindBestCursorFile( dir, width, height, colors );
1115 else
1116 entry = CURSORICON_FindBestIconFile( dir, width, height, colors );
1117
1118 if ( !entry )
1119 goto end;
1120
1121 /* check that we don't run off the end of the file */
1122 if ( entry->dwDIBOffset > filesize )
1123 goto end;
1124 if ( entry->dwDIBOffset + entry->dwDIBSize > filesize )
1125 goto end;
1126
1127 hotspot.x = entry->xHotspot;
1128 hotspot.y = entry->yHotspot;
1129 hIcon = CURSORICON_CreateIconFromBMI( (BITMAPINFO *)&bits[entry->dwDIBOffset],
1130 hotspot, !fCursor, 0x00030000,
1131 width, height, loadflags );
1132 end:
1133 TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon );
1134 UnmapViewOfFile( bits );
1135 return hIcon;
1136 }
1137
1138 /**********************************************************************
1139 * CURSORICON_Load
1140 *
1141 * Load a cursor or icon from resource or file.
1142 */
1143 static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
1144 INT width, INT height, INT colors,
1145 BOOL fCursor, UINT loadflags)
1146 {
1147 HANDLE handle = 0;
1148 HICON hIcon = 0;
1149 HRSRC hRsrc, hGroupRsrc;
1150 CURSORICONDIR *dir;
1151 CURSORICONDIRENTRY *dirEntry;
1152 LPBYTE bits;
1153 WORD wResId;
1154 DWORD dwBytesInRes;
1155
1156 TRACE("%p, %s, %dx%d, colors %d, fCursor %d, flags 0x%04x\n",
1157 hInstance, debugstr_w(name), width, height, colors, fCursor, loadflags);
1158
1159 if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
1160 return CURSORICON_LoadFromFile( name, width, height, colors, fCursor, loadflags );
1161
1162 if (!hInstance) hInstance = user32_module; /* Load OEM cursor/icon */
1163
1164 /* Normalize hInstance (must be uniquely represented for icon cache) */
1165
1166 if (!HIWORD( hInstance ))
1167 hInstance = HINSTANCE_32(GetExePtr( HINSTANCE_16(hInstance) ));
1168
1169 /* Get directory resource ID */
1170
1171 if (!(hRsrc = FindResourceW( hInstance, name,
1172 (LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
1173 return 0;
1174 hGroupRsrc = hRsrc;
1175
1176 /* Find the best entry in the directory */
1177
1178 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1179 if (!(dir = LockResource( handle ))) return 0;
1180 if (fCursor)
1181 dirEntry = CURSORICON_FindBestCursorRes( dir, width, height, 1);
1182 else
1183 dirEntry = CURSORICON_FindBestIconRes( dir, width, height, colors );
1184 if (!dirEntry) return 0;
1185 wResId = dirEntry->wResId;
1186 dwBytesInRes = dirEntry->dwBytesInRes;
1187 FreeResource( handle );
1188
1189 /* Load the resource */
1190
1191 if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
1192 (LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0;
1193
1194 /* If shared icon, check whether it was already loaded */
1195 if ( (loadflags & LR_SHARED)
1196 && (hIcon = CURSORICON_FindSharedIcon( hInstance, hRsrc ) ) != 0 )
1197 return hIcon;
1198
1199 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1200 bits = LockResource( handle );
1201 hIcon = CreateIconFromResourceEx( bits, dwBytesInRes,
1202 !fCursor, 0x00030000, width, height, loadflags);
1203 FreeResource( handle );
1204
1205 /* If shared icon, add to icon cache */
1206
1207 if ( hIcon && (loadflags & LR_SHARED) )
1208 CURSORICON_AddSharedIcon( hInstance, hRsrc, hGroupRsrc, hIcon );
1209
1210 return hIcon;
1211 }
1212
1213 /***********************************************************************
1214 * CURSORICON_Copy
1215 *
1216 * Make a copy of a cursor or icon.
1217 */
1218 static HICON CURSORICON_Copy( HINSTANCE16 hInst16, HICON hIcon )
1219 {
1220 char *ptrOld, *ptrNew;
1221 int size;
1222 HICON16 hOld = HICON_16(hIcon);
1223 HICON16 hNew;
1224
1225 if (!(ptrOld = GlobalLock16( hOld ))) return 0;
1226 if (hInst16 && !(hInst16 = GetExePtr( hInst16 ))) return 0;
1227 size = GlobalSize16( hOld );
1228 hNew = GlobalAlloc16( GMEM_MOVEABLE, size );
1229 FarSetOwner16( hNew, hInst16 );
1230 ptrNew = GlobalLock16( hNew );
1231 memcpy( ptrNew, ptrOld, size );
1232 GlobalUnlock16( hOld );
1233 GlobalUnlock16( hNew );
1234 return HICON_32(hNew);
1235 }
1236
1237 /*************************************************************************
1238 * CURSORICON_ExtCopy
1239 *
1240 * Copies an Image from the Cache if LR_COPYFROMRESOURCE is specified
1241 *
1242 * PARAMS
1243 * Handle [I] handle to an Image
1244 * nType [I] Type of Handle (IMAGE_CURSOR | IMAGE_ICON)
1245 * iDesiredCX [I] The Desired width of the Image
1246 * iDesiredCY [I] The desired height of the Image
1247 * nFlags [I] The flags from CopyImage
1248 *
1249 * RETURNS
1250 * Success: The new handle of the Image
1251 *
1252 * NOTES
1253 * LR_COPYDELETEORG and LR_MONOCHROME are currently not implemented.
1254 * LR_MONOCHROME should be implemented by CreateIconFromResourceEx.
1255 * LR_COPYFROMRESOURCE will only work if the Image is in the Cache.
1256 *
1257 *
1258 */
1259
1260 static HICON CURSORICON_ExtCopy(HICON hIcon, UINT nType,
1261 INT iDesiredCX, INT iDesiredCY,
1262 UINT nFlags)
1263 {
1264 HICON hNew=0;
1265
1266 TRACE_(icon)("hIcon %p, nType %u, iDesiredCX %i, iDesiredCY %i, nFlags %u\n",
1267 hIcon, nType, iDesiredCX, iDesiredCY, nFlags);
1268
1269 if(hIcon == 0)
1270 {
1271 return 0;
1272 }
1273
1274 /* Best Fit or Monochrome */
1275 if( (nFlags & LR_COPYFROMRESOURCE
1276 && (iDesiredCX > 0 || iDesiredCY > 0))
1277 || nFlags & LR_MONOCHROME)
1278 {
1279 ICONCACHE* pIconCache = CURSORICON_FindCache(hIcon);
1280
1281 /* Not Found in Cache, then do a straight copy
1282 */
1283 if(pIconCache == NULL)
1284 {
1285 hNew = CURSORICON_Copy(0, hIcon);
1286 if(nFlags & LR_COPYFROMRESOURCE)
1287 {
1288 TRACE_(icon)("LR_COPYFROMRESOURCE: Failed to load from cache\n");
1289 }
1290 }
1291 else
1292 {
1293 int iTargetCY = iDesiredCY, iTargetCX = iDesiredCX;
1294 LPBYTE pBits;
1295 HANDLE hMem;
1296 HRSRC hRsrc;
1297 DWORD dwBytesInRes;
1298 WORD wResId;
1299 CURSORICONDIR *pDir;
1300 CURSORICONDIRENTRY *pDirEntry;
1301 BOOL bIsIcon = (nType == IMAGE_ICON);
1302
1303 /* Completing iDesiredCX CY for Monochrome Bitmaps if needed
1304 */
1305 if(((nFlags & LR_MONOCHROME) && !(nFlags & LR_COPYFROMRESOURCE))
1306 || (iDesiredCX == 0 && iDesiredCY == 0))
1307 {
1308 iDesiredCY = GetSystemMetrics(bIsIcon ?
1309 SM_CYICON : SM_CYCURSOR);
1310 iDesiredCX = GetSystemMetrics(bIsIcon ?
1311 SM_CXICON : SM_CXCURSOR);
1312 }
1313
1314 /* Retrieve the CURSORICONDIRENTRY
1315 */
1316 if (!(hMem = LoadResource( pIconCache->hModule ,
1317 pIconCache->hGroupRsrc)))
1318 {
1319 return 0;
1320 }
1321 if (!(pDir = LockResource( hMem )))
1322 {
1323 return 0;
1324 }
1325
1326 /* Find Best Fit
1327 */
1328 if(bIsIcon)
1329 {
1330 pDirEntry = CURSORICON_FindBestIconRes(
1331 pDir, iDesiredCX, iDesiredCY, 256 );
1332 }
1333 else
1334 {
1335 pDirEntry = CURSORICON_FindBestCursorRes(
1336 pDir, iDesiredCX, iDesiredCY, 1);
1337 }
1338
1339 wResId = pDirEntry->wResId;
1340 dwBytesInRes = pDirEntry->dwBytesInRes;
1341 FreeResource(hMem);
1342
1343 TRACE_(icon)("ResID %u, BytesInRes %u, Width %d, Height %d DX %d, DY %d\n",
1344 wResId, dwBytesInRes, pDirEntry->ResInfo.icon.bWidth,
1345 pDirEntry->ResInfo.icon.bHeight, iDesiredCX, iDesiredCY);
1346
1347 /* Get the Best Fit
1348 */
1349 if (!(hRsrc = FindResourceW(pIconCache->hModule ,
1350 MAKEINTRESOURCEW(wResId), (LPWSTR)(bIsIcon ? RT_ICON : RT_CURSOR))))
1351 {
1352 return 0;
1353 }
1354 if (!(hMem = LoadResource( pIconCache->hModule , hRsrc )))
1355 {
1356 return 0;
1357 }
1358
1359 pBits = LockResource( hMem );
1360
1361 if(nFlags & LR_DEFAULTSIZE)
1362 {
1363 iTargetCY = GetSystemMetrics(SM_CYICON);
1364 iTargetCX = GetSystemMetrics(SM_CXICON);
1365 }
1366
1367 /* Create a New Icon with the proper dimension
1368 */
1369 hNew = CreateIconFromResourceEx( pBits, dwBytesInRes,
1370 bIsIcon, 0x00030000, iTargetCX, iTargetCY, nFlags);
1371 FreeResource(hMem);
1372 }
1373 }
1374 else hNew = CURSORICON_Copy(0, hIcon);
1375 return hNew;
1376 }
1377
1378
1379 /***********************************************************************
1380 * CreateCursor (USER32.@)
1381 */
1382 HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
1383 INT xHotSpot, INT yHotSpot,
1384 INT nWidth, INT nHeight,
1385 LPCVOID lpANDbits, LPCVOID lpXORbits )
1386 {
1387 CURSORICONINFO info;
1388
1389 TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
1390 nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
1391
1392 info.ptHotSpot.x = xHotSpot;
1393 info.ptHotSpot.y = yHotSpot;
1394 info.nWidth = nWidth;
1395 info.nHeight = nHeight;
1396 info.nWidthBytes = 0;
1397 info.bPlanes = 1;
1398 info.bBitsPerPixel = 1;
1399
1400 return HICON_32(CreateCursorIconIndirect16(0, &info, lpANDbits, lpXORbits));
1401 }
1402
1403
1404 /***********************************************************************
1405 * CreateIcon (USER.407)
1406 */
1407 HICON16 WINAPI CreateIcon16( HINSTANCE16 hInstance, INT16 nWidth,
1408 INT16 nHeight, BYTE bPlanes, BYTE bBitsPixel,
1409 LPCVOID lpANDbits, LPCVOID lpXORbits )
1410 {
1411 CURSORICONINFO info;
1412
1413 TRACE_(icon)("%dx%dx%d, xor=%p, and=%p\n",
1414 nWidth, nHeight, bPlanes * bBitsPixel, lpXORbits, lpANDbits);
1415
1416 info.ptHotSpot.x = ICON_HOTSPOT;
1417 info.ptHotSpot.y = ICON_HOTSPOT;
1418 info.nWidth = nWidth;
1419 info.nHeight = nHeight;
1420 info.nWidthBytes = 0;
1421 info.bPlanes = bPlanes;
1422 info.bBitsPerPixel = bBitsPixel;
1423
1424 return CreateCursorIconIndirect16( hInstance, &info, lpANDbits, lpXORbits );
1425 }
1426
1427
1428 /***********************************************************************
1429 * CreateIcon (USER32.@)
1430 *
1431 * Creates an icon based on the specified bitmaps. The bitmaps must be
1432 * provided in a device dependent format and will be resized to
1433 * (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
1434 * depth. The provided bitmaps must be top-down bitmaps.
1435 * Although Windows does not support 15bpp(*) this API must support it
1436 * for Winelib applications.
1437 *
1438 * (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
1439 * format!
1440 *
1441 * RETURNS
1442 * Success: handle to an icon
1443 * Failure: NULL
1444 *
1445 * FIXME: Do we need to resize the bitmaps?
1446 */
1447 HICON WINAPI CreateIcon(
1448 HINSTANCE hInstance, /* [in] the application's hInstance */
1449 INT nWidth, /* [in] the width of the provided bitmaps */
1450 INT nHeight, /* [in] the height of the provided bitmaps */
1451 BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
1452 BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
1453 LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
1454 LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
1455 {
1456 ICONINFO iinfo;
1457 HICON hIcon;
1458
1459 TRACE_(icon)("%dx%d, planes %d, bpp %d, xor %p, and %p\n",
1460 nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits, lpANDbits);
1461
1462 iinfo.fIcon = TRUE;
1463 iinfo.xHotspot = ICON_HOTSPOT;
1464 iinfo.yHotspot = ICON_HOTSPOT;
1465 iinfo.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1466 iinfo.hbmColor = CreateBitmap( nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits );
1467
1468 hIcon = CreateIconIndirect( &iinfo );
1469
1470 DeleteObject( iinfo.hbmMask );
1471 DeleteObject( iinfo.hbmColor );
1472
1473 return hIcon;
1474 }
1475
1476
1477 /***********************************************************************
1478 * CreateCursorIconIndirect (USER.408)
1479 */
1480 HGLOBAL16 WINAPI CreateCursorIconIndirect16( HINSTANCE16 hInstance,
1481 CURSORICONINFO *info,
1482 LPCVOID lpANDbits,
1483 LPCVOID lpXORbits )
1484 {
1485 HGLOBAL16 handle;
1486 char *ptr;
1487 int sizeAnd, sizeXor;
1488
1489 hInstance = GetExePtr( hInstance ); /* Make it a module handle */
1490 if (!lpXORbits || !lpANDbits || info->bPlanes != 1) return 0;
1491 info->nWidthBytes = get_bitmap_width_bytes(info->nWidth,info->bBitsPerPixel);
1492 sizeXor = info->nHeight * info->nWidthBytes;
1493 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1494 if (!(handle = GlobalAlloc16( GMEM_MOVEABLE,
1495 sizeof(CURSORICONINFO) + sizeXor + sizeAnd)))
1496 return 0;
1497 FarSetOwner16( handle, hInstance );
1498 ptr = GlobalLock16( handle );
1499 memcpy( ptr, info, sizeof(*info) );
1500 memcpy( ptr + sizeof(CURSORICONINFO), lpANDbits, sizeAnd );
1501 memcpy( ptr + sizeof(CURSORICONINFO) + sizeAnd, lpXORbits, sizeXor );
1502 GlobalUnlock16( handle );
1503 return handle;
1504 }
1505
1506
1507 /***********************************************************************
1508 * CopyIcon (USER.368)
1509 */
1510 HICON16 WINAPI CopyIcon16( HINSTANCE16 hInstance, HICON16 hIcon )
1511 {
1512 TRACE_(icon)("%04x %04x\n", hInstance, hIcon );
1513 return HICON_16(CURSORICON_Copy(hInstance, HICON_32(hIcon)));
1514 }
1515
1516
1517 /***********************************************************************
1518 * CopyIcon (USER32.@)
1519 */
1520 HICON WINAPI CopyIcon( HICON hIcon )
1521 {
1522 TRACE_(icon)("%p\n", hIcon );
1523 return CURSORICON_Copy( 0, hIcon );
1524 }
1525
1526
1527 /***********************************************************************
1528 * CopyCursor (USER.369)
1529 */
1530 HCURSOR16 WINAPI CopyCursor16( HINSTANCE16 hInstance, HCURSOR16 hCursor )
1531 {
1532 TRACE_(cursor)("%04x %04x\n", hInstance, hCursor );
1533 return HICON_16(CURSORICON_Copy(hInstance, HCURSOR_32(hCursor)));
1534 }
1535
1536 /**********************************************************************
1537 * DestroyIcon32 (USER.610)
1538 *
1539 * This routine is actually exported from Win95 USER under the name
1540 * DestroyIcon32 ... The behaviour implemented here should mimic
1541 * the Win95 one exactly, especially the return values, which
1542 * depend on the setting of various flags.
1543 */
1544 WORD WINAPI DestroyIcon32( HGLOBAL16 handle, UINT16 flags )
1545 {
1546 WORD retv;
1547
1548 TRACE_(icon)("(%04x, %04x)\n", handle, flags );
1549
1550 /* Check whether destroying active cursor */
1551
1552 if ( get_user_thread_info()->cursor == HICON_32(handle) )
1553 {
1554 WARN_(cursor)("Destroying active cursor!\n" );
1555 return FALSE;
1556 }
1557
1558 /* Try shared cursor/icon first */
1559
1560 if ( !(flags & CID_NONSHARED) )
1561 {
1562 INT count = CURSORICON_DelSharedIcon(HICON_32(handle));
1563
1564 if ( count != -1 )
1565 return (flags & CID_WIN32)? TRUE : (count == 0);
1566
1567 /* FIXME: OEM cursors/icons should be recognized */
1568 }
1569
1570 /* Now assume non-shared cursor/icon */
1571
1572 retv = GlobalFree16( handle );
1573 return (flags & CID_RESOURCE)? retv : TRUE;
1574 }
1575
1576 /***********************************************************************
1577 * DestroyIcon (USER32.@)
1578 */
1579 BOOL WINAPI DestroyIcon( HICON hIcon )
1580 {
1581 return DestroyIcon32(HICON_16(hIcon), CID_WIN32);
1582 }
1583
1584
1585 /***********************************************************************
1586 * DestroyCursor (USER32.@)
1587 */
1588 BOOL WINAPI DestroyCursor( HCURSOR hCursor )
1589 {
1590 return DestroyIcon32(HCURSOR_16(hCursor), CID_WIN32);
1591 }
1592
1593
1594 /***********************************************************************
1595 * DrawIcon (USER32.@)
1596 */
1597 BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
1598 {
1599 CURSORICONINFO *ptr;
1600 HDC hMemDC;
1601 HBITMAP hXorBits, hAndBits;
1602 COLORREF oldFg, oldBg;
1603
1604 TRACE("%p, (%d,%d), %p\n", hdc, x, y, hIcon);
1605
1606 if (!(ptr = GlobalLock16(HICON_16(hIcon)))) return FALSE;
1607 if (!(hMemDC = CreateCompatibleDC( hdc ))) return FALSE;
1608 hAndBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1,
1609 (char *)(ptr+1) );
1610 hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, ptr->bPlanes,
1611 ptr->bBitsPerPixel, (char *)(ptr + 1)
1612 + ptr->nHeight * get_bitmap_width_bytes(ptr->nWidth,1) );
1613 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1614 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1615
1616 if (hXorBits && hAndBits)
1617 {
1618 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
1619 BitBlt( hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0, SRCAND );
1620 SelectObject( hMemDC, hXorBits );
1621 BitBlt(hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0,SRCINVERT);
1622 SelectObject( hMemDC, hBitTemp );
1623 }
1624 DeleteDC( hMemDC );
1625 if (hXorBits) DeleteObject( hXorBits );
1626 if (hAndBits) DeleteObject( hAndBits );
1627 GlobalUnlock16(HICON_16(hIcon));
1628 SetTextColor( hdc, oldFg );
1629 SetBkColor( hdc, oldBg );
1630 return TRUE;
1631 }
1632
1633 /***********************************************************************
1634 * DumpIcon (USER.459)
1635 */
1636 DWORD WINAPI DumpIcon16( SEGPTR pInfo, WORD *lpLen,
1637 SEGPTR *lpXorBits, SEGPTR *lpAndBits )
1638 {
1639 CURSORICONINFO *info = MapSL( pInfo );
1640 int sizeAnd, sizeXor;
1641
1642 if (!info) return 0;
1643 sizeXor = info->nHeight * info->nWidthBytes;
1644 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1645 if (lpAndBits) *lpAndBits = pInfo + sizeof(CURSORICONINFO);
1646 if (lpXorBits) *lpXorBits = pInfo + sizeof(CURSORICONINFO) + sizeAnd;
1647 if (lpLen) *lpLen = sizeof(CURSORICONINFO) + sizeAnd + sizeXor;
1648 return MAKELONG( sizeXor, sizeXor );
1649 }
1650
1651
1652 /***********************************************************************
1653 * SetCursor (USER32.@)
1654 *
1655 * Set the cursor shape.
1656 *
1657 * RETURNS
1658 * A handle to the previous cursor shape.
1659 */
1660 HCURSOR WINAPI SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
1661 {
1662 struct user_thread_info *thread_info = get_user_thread_info();
1663 HCURSOR hOldCursor;
1664
1665 if (hCursor == thread_info->cursor) return hCursor; /* No change */
1666 TRACE("%p\n", hCursor);
1667 hOldCursor = thread_info->cursor;
1668 thread_info->cursor = hCursor;
1669 /* Change the cursor shape only if it is visible */
1670 if (thread_info->cursor_count >= 0)
1671 {
1672 USER_Driver->pSetCursor( (CURSORICONINFO*)GlobalLock16(HCURSOR_16(hCursor)) );
1673 GlobalUnlock16(HCURSOR_16(hCursor));
1674 }
1675 return hOldCursor;
1676 }
1677
1678 /***********************************************************************
1679 * ShowCursor (USER32.@)
1680 */
1681 INT WINAPI ShowCursor( BOOL bShow )
1682 {
1683 struct user_thread_info *thread_info = get_user_thread_info();
1684
1685 TRACE("%d, count=%d\n", bShow, thread_info->cursor_count );
1686
1687 if (bShow)
1688 {
1689 if (++thread_info->cursor_count == 0) /* Show it */
1690 {
1691 USER_Driver->pSetCursor((CURSORICONINFO*)GlobalLock16(HCURSOR_16(thread_info->cursor)));
1692 GlobalUnlock16(HCURSOR_16(thread_info->cursor));
1693 }
1694 }
1695 else
1696 {
1697 if (--thread_info->cursor_count == -1) /* Hide it */
1698 USER_Driver->pSetCursor( NULL );
1699 }
1700 return thread_info->cursor_count;
1701 }
1702
1703 /***********************************************************************
1704 * GetCursor (USER32.@)
1705 */
1706 HCURSOR WINAPI GetCursor(void)
1707 {
1708 return get_user_thread_info()->cursor;
1709 }
1710
1711
1712 /***********************************************************************
1713 * ClipCursor (USER32.@)
1714 */
1715 BOOL WINAPI ClipCursor( const RECT *rect )
1716 {
1717 RECT virt;
1718
1719 SetRect( &virt, 0, 0, GetSystemMetrics( SM_CXVIRTUALSCREEN ),
1720 GetSystemMetrics( SM_CYVIRTUALSCREEN ) );
1721 OffsetRect( &virt, GetSystemMetrics( SM_XVIRTUALSCREEN ),
1722 GetSystemMetrics( SM_YVIRTUALSCREEN ) );
1723
1724 TRACE( "Clipping to: %s was: %s screen: %s\n", wine_dbgstr_rect(rect),
1725 wine_dbgstr_rect(&CURSOR_ClipRect), wine_dbgstr_rect(&virt) );
1726
1727 if (!IntersectRect( &CURSOR_ClipRect, &virt, rect ))
1728 CURSOR_ClipRect = virt;
1729
1730 USER_Driver->pClipCursor( rect );
1731 return TRUE;
1732 }
1733
1734
1735 /***********************************************************************
1736 * GetClipCursor (USER32.@)
1737 */
1738 BOOL WINAPI GetClipCursor( RECT *rect )
1739 {
1740 /* If this is first time - initialize the rect */
1741 if (IsRectEmpty( &CURSOR_ClipRect )) ClipCursor( NULL );
1742
1743 return CopyRect( rect, &CURSOR_ClipRect );
1744 }
1745
1746
1747 /***********************************************************************
1748 * SetSystemCursor (USER32.@)
1749 */
1750 BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id)
1751 {
1752 FIXME("(%p,%08x),stub!\n", hcur, id);
1753 return TRUE;
1754 }
1755
1756
1757 /**********************************************************************
1758 * LookupIconIdFromDirectoryEx (USER.364)
1759 *
1760 * FIXME: exact parameter sizes
1761 */
1762 INT16 WINAPI LookupIconIdFromDirectoryEx16( LPBYTE dir, BOOL16 bIcon,
1763 INT16 width, INT16 height, UINT16 cFlag )
1764 {
1765 return LookupIconIdFromDirectoryEx( dir, bIcon, width, height, cFlag );
1766 }
1767
1768 /**********************************************************************
1769 * LookupIconIdFromDirectoryEx (USER32.@)
1770 */
1771 INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
1772 INT width, INT height, UINT cFlag )
1773 {
1774 CURSORICONDIR *dir = (CURSORICONDIR*)xdir;
1775 UINT retVal = 0;
1776 if( dir && !dir->idReserved && (dir->idType & 3) )
1777 {
1778 CURSORICONDIRENTRY* entry;
1779 HDC hdc;
1780 UINT palEnts;
1781 int colors;
1782 hdc = GetDC(0);
1783 palEnts = GetSystemPaletteEntries(hdc, 0, 0, NULL);
1784 if (palEnts == 0)
1785 palEnts = 256;
1786 colors = (cFlag & LR_MONOCHROME) ? 2 : palEnts;
1787
1788 ReleaseDC(0, hdc);
1789
1790 if( bIcon )
1791 entry = CURSORICON_FindBestIconRes( dir, width, height, colors );
1792 else
1793 entry = CURSORICON_FindBestCursorRes( dir, width, height, 1);
1794
1795 if( entry ) retVal = entry->wResId;
1796 }
1797 else WARN_(cursor)("invalid resource directory\n");
1798 return retVal;
1799 }
1800
1801 /**********************************************************************
1802 * LookupIconIdFromDirectory (USER.?)
1803 */
1804 INT16 WINAPI LookupIconIdFromDirectory16( LPBYTE dir, BOOL16 bIcon )
1805 {
1806 return LookupIconIdFromDirectoryEx16( dir, bIcon,
1807 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1808 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1809 }
1810
1811 /**********************************************************************
1812 * LookupIconIdFromDirectory (USER32.@)
1813 */
1814 INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
1815 {
1816 return LookupIconIdFromDirectoryEx( dir, bIcon,
1817 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1818 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1819 }
1820
1821 /**********************************************************************
1822 * GetIconID (USER.455)
1823 */
1824 WORD WINAPI GetIconID16( HGLOBAL16 hResource, DWORD resType )
1825 {
1826 LPBYTE lpDir = GlobalLock16(hResource);
1827
1828 TRACE_(cursor)("hRes=%04x, entries=%i\n",
1829 hResource, lpDir ? ((CURSORICONDIR*)lpDir)->idCount : 0);
1830
1831 switch(resType)
1832 {
1833 case RT_CURSOR:
1834 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, FALSE,
1835 GetSystemMetrics(SM_CXCURSOR), GetSystemMetrics(SM_CYCURSOR), LR_MONOCHROME );
1836 case RT_ICON:
1837 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, TRUE,
1838 GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), 0 );
1839 default:
1840 WARN_(cursor)("invalid res type %d\n", resType );
1841 }
1842 return 0;
1843 }
1844
1845 /**********************************************************************
1846 * LoadCursorIconHandler (USER.336)
1847 *
1848 * Supposed to load resources of Windows 2.x applications.
1849 */
1850 HGLOBAL16 WINAPI LoadCursorIconHandler16( HGLOBAL16 hResource, HMODULE16 hModule, HRSRC16 hRsrc )
1851 {
1852 FIXME_(cursor)("(%04x,%04x,%04x): old 2.x resources are not supported!\n",
1853 hResource, hModule, hRsrc);
1854 return 0;
1855 }
1856
1857 /**********************************************************************
1858 * LoadIconHandler (USER.456)
1859 */
1860 HICON16 WINAPI LoadIconHandler16( HGLOBAL16 hResource, BOOL16 bNew )
1861 {
1862 LPBYTE bits = LockResource16( hResource );
1863
1864 TRACE_(cursor)("hRes=%04x\n",hResource);
1865
1866 return HICON_16(CreateIconFromResourceEx( bits, 0, TRUE,
1867 bNew ? 0x00030000 : 0x00020000, 0, 0, LR_DEFAULTCOLOR));
1868 }
1869
1870 /***********************************************************************
1871 * LoadCursorW (USER32.@)
1872 */
1873 HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
1874 {
1875 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1876
1877 return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
1878 LR_SHARED | LR_DEFAULTSIZE );
1879 }
1880
1881 /***********************************************************************
1882 * LoadCursorA (USER32.@)
1883 */
1884 HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
1885 {
1886 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1887
1888 return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
1889 LR_SHARED | LR_DEFAULTSIZE );
1890 }
1891
1892 /***********************************************************************
1893 * LoadCursorFromFileW (USER32.@)
1894 */
1895 HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
1896 {
1897 TRACE("%s\n", debugstr_w(name));
1898
1899 return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
1900 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1901 }
1902
1903 /***********************************************************************
1904 * LoadCursorFromFileA (USER32.@)
1905 */
1906 HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
1907 {
1908 TRACE("%s\n", debugstr_a(name));
1909
1910 return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
1911 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1912 }
1913
1914 /***********************************************************************
1915 * LoadIconW (USER32.@)
1916 */
1917 HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
1918 {
1919 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1920
1921 return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
1922 LR_SHARED | LR_DEFAULTSIZE );
1923 }
1924
1925 /***********************************************************************
1926 * LoadIconA (USER32.@)
1927 */
1928 HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
1929 {
1930 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1931
1932 return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
1933 LR_SHARED | LR_DEFAULTSIZE );
1934 }
1935
1936 /**********************************************************************
1937 * GetIconInfo (USER32.@)
1938 */
1939 BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
1940 {
1941 CURSORICONINFO *ciconinfo;
1942 INT height;
1943
1944 ciconinfo = GlobalLock16(HICON_16(hIcon));
1945 if (!ciconinfo)
1946 return FALSE;
1947
1948 TRACE("%p => %dx%d, %d bpp\n", hIcon,
1949 ciconinfo->nWidth, ciconinfo->nHeight, ciconinfo->bBitsPerPixel);
1950
1951 if ( (ciconinfo->ptHotSpot.x == ICON_HOTSPOT) &&
1952 (ciconinfo->ptHotSpot.y == ICON_HOTSPOT) )
1953 {
1954 iconinfo->fIcon = TRUE;
1955 iconinfo->xHotspot = ciconinfo->nWidth / 2;
1956 iconinfo->yHotspot = ciconinfo->nHeight / 2;
1957 }
1958 else
1959 {
1960 iconinfo->fIcon = FALSE;
1961 iconinfo->xHotspot = ciconinfo->ptHotSpot.x;
1962 iconinfo->yHotspot = ciconinfo->ptHotSpot.y;
1963 }
1964
1965 height = ciconinfo->nHeight;
1966
1967 if (ciconinfo->bBitsPerPixel > 1)
1968 {
1969 iconinfo->hbmColor = CreateBitmap( ciconinfo->nWidth, ciconinfo->nHeight,
1970 ciconinfo->bPlanes, ciconinfo->bBitsPerPixel,
1971 (char *)(ciconinfo + 1)
1972 + ciconinfo->nHeight *
1973 get_bitmap_width_bytes (ciconinfo->nWidth,1) );
1974 }
1975 else
1976 {
1977 iconinfo->hbmColor = 0;
1978 height *= 2;
1979 }
1980
1981 iconinfo->hbmMask = CreateBitmap ( ciconinfo->nWidth, height,
1982 1, 1, (char *)(ciconinfo + 1));
1983
1984 GlobalUnlock16(HICON_16(hIcon));
1985
1986 return TRUE;
1987 }
1988
1989 /**********************************************************************
1990 * CreateIconIndirect (USER32.@)
1991 */
1992 HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
1993 {
1994 DIBSECTION bmpXor;
1995 BITMAP bmpAnd;
1996 HICON16 hObj;
1997 int xor_objsize = 0, sizeXor = 0, sizeAnd, planes, bpp;
1998
1999 TRACE("color %p, mask %p, hotspot %ux%u, fIcon %d\n",
2000 iconinfo->hbmColor, iconinfo->hbmMask,
2001 iconinfo->xHotspot, iconinfo->yHotspot, iconinfo->fIcon);
2002
2003 if (!iconinfo->hbmMask) return 0;
2004
2005 planes = GetDeviceCaps( screen_dc, PLANES );
2006 bpp = GetDeviceCaps( screen_dc, BITSPIXEL );
2007
2008 if (iconinfo->hbmColor)
2009 {
2010 xor_objsize = GetObjectW( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
2011 TRACE("color: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2012 bmpXor.dsBm.bmWidth, bmpXor.dsBm.bmHeight, bmpXor.dsBm.bmWidthBytes,
2013 bmpXor.dsBm.bmPlanes, bmpXor.dsBm.bmBitsPixel);
2014 /* we can use either depth 1 or screen depth for xor bitmap */
2015 if (bmpXor.dsBm.bmPlanes == 1 && bmpXor.dsBm.bmBitsPixel == 1) planes = bpp = 1;
2016 sizeXor = bmpXor.dsBm.bmHeight * planes * get_bitmap_width_bytes( bmpXor.dsBm.bmWidth, bpp );
2017 }
2018 GetObjectW( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
2019 TRACE("mask: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2020 bmpAnd.bmWidth, bmpAnd.bmHeight, bmpAnd.bmWidthBytes,
2021 bmpAnd.bmPlanes, bmpAnd.bmBitsPixel);
2022
2023 sizeAnd = bmpAnd.bmHeight * get_bitmap_width_bytes(bmpAnd.bmWidth, 1);
2024
2025 hObj = GlobalAlloc16( GMEM_MOVEABLE,
2026 sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
2027 if (hObj)
2028 {
2029 CURSORICONINFO *info;
2030
2031 info = GlobalLock16( hObj );
2032
2033 /* If we are creating an icon, the hotspot is unused */
2034 if (iconinfo->fIcon)
2035 {
2036 info->ptHotSpot.x = ICON_HOTSPOT;
2037 info->ptHotSpot.y = ICON_HOTSPOT;
2038 }
2039 else
2040 {
2041 info->ptHotSpot.x = iconinfo->xHotspot;
2042 info->ptHotSpot.y = iconinfo->yHotspot;
2043 }
2044
2045 if (iconinfo->hbmColor)
2046 {
2047 info->nWidth = bmpXor.dsBm.bmWidth;
2048 info->nHeight = bmpXor.dsBm.bmHeight;
2049 info->nWidthBytes = bmpXor.dsBm.bmWidthBytes;
2050 info->bPlanes = planes;
2051 info->bBitsPerPixel = bpp;
2052 }
2053 else
2054 {
2055 info->nWidth = bmpAnd.bmWidth;
2056 info->nHeight = bmpAnd.bmHeight / 2;
2057 info->nWidthBytes = get_bitmap_width_bytes(bmpAnd.bmWidth, 1);
2058 info->bPlanes = 1;
2059 info->bBitsPerPixel = 1;
2060 }
2061
2062 /* Transfer the bitmap bits to the CURSORICONINFO structure */
2063
2064 /* Some apps pass a color bitmap as a mask, convert it to b/w */
2065 if (bmpAnd.bmBitsPixel == 1)
2066 {
2067 GetBitmapBits( iconinfo->hbmMask, sizeAnd, (char*)(info + 1) );
2068 }
2069 else
2070 {
2071 HDC hdc, hdc_mem;
2072 HBITMAP hbmp_old, hbmp_mem_old, hbmp_mono;
2073
2074 hdc = GetDC( 0 );
2075 hdc_mem = CreateCompatibleDC( hdc );
2076
2077 hbmp_mono = CreateBitmap( bmpAnd.bmWidth, bmpAnd.bmHeight, 1, 1, NULL );
2078
2079 hbmp_old = SelectObject( hdc, iconinfo->hbmMask );
2080 hbmp_mem_old = SelectObject( hdc_mem, hbmp_mono );
2081
2082 BitBlt( hdc_mem, 0, 0, bmpAnd.bmWidth, bmpAnd.bmHeight, hdc, 0, 0, SRCCOPY );
2083
2084 SelectObject( hdc, hbmp_old );
2085 SelectObject( hdc_mem, hbmp_mem_old );
2086
2087 DeleteDC( hdc_mem );
2088 ReleaseDC( 0, hdc );
2089
2090 GetBitmapBits( hbmp_mono, sizeAnd, (char*)(info + 1) );
2091 DeleteObject( hbmp_mono );
2092 }
2093
2094 if (iconinfo->hbmColor)
2095 {
2096 char *dst_bits = (char*)(info + 1) + sizeAnd;
2097
2098 if (bmpXor.dsBm.bmPlanes == planes && bmpXor.dsBm.bmBitsPixel == bpp)
2099 GetBitmapBits( iconinfo->hbmColor, sizeXor, dst_bits );
2100 else
2101 {
2102 BITMAPINFO bminfo;
2103 int dib_width = get_dib_width_bytes( info->nWidth, info->bBitsPerPixel );
2104 int bitmap_width = get_bitmap_width_bytes( info->nWidth, info->bBitsPerPixel );
2105
2106 bminfo.bmiHeader.biSize = sizeof(bminfo);
2107 bminfo.bmiHeader.biWidth = info->nWidth;
2108 bminfo.bmiHeader.biHeight = info->nHeight;
2109 bminfo.bmiHeader.biPlanes = info->bPlanes;
2110 bminfo.bmiHeader.biBitCount = info->bBitsPerPixel;
2111 bminfo.bmiHeader.biCompression = BI_RGB;
2112 bminfo.bmiHeader.biSizeImage = info->nHeight * dib_width;
2113 bminfo.bmiHeader.biXPelsPerMeter = 0;
2114 bminfo.bmiHeader.biYPelsPerMeter = 0;
2115 bminfo.bmiHeader.biClrUsed = 0;
2116 bminfo.bmiHeader.biClrImportant = 0;
2117
2118 /* swap lines for dib sections */
2119 if (xor_objsize == sizeof(DIBSECTION))
2120 bminfo.bmiHeader.biHeight = -bminfo.bmiHeader.biHeight;
2121
2122 if (dib_width != bitmap_width) /* need to fixup alignment */
2123 {
2124 char *src_bits = HeapAlloc( GetProcessHeap(), 0, bminfo.bmiHeader.biSizeImage );
2125
2126 if (src_bits && GetDIBits( screen_dc, iconinfo->hbmColor, 0, info->nHeight,
2127 src_bits, &bminfo, DIB_RGB_COLORS ))
2128 {
2129 int y;
2130 for (y = 0; y < info->nHeight; y++)
2131 memcpy( dst_bits + y * bitmap_width, src_bits + y * dib_width, bitmap_width );
2132 }
2133 HeapFree( GetProcessHeap(), 0, src_bits );
2134 }
2135 else
2136 GetDIBits( screen_dc, iconinfo->hbmColor, 0, info->nHeight,
2137 dst_bits, &bminfo, DIB_RGB_COLORS );
2138 }
2139 }
2140 GlobalUnlock16( hObj );
2141 }
2142 return HICON_32(hObj);
2143 }
2144
2145 /******************************************************************************
2146 * DrawIconEx (USER32.@) Draws an icon or cursor on device context
2147 *
2148 * NOTES
2149 * Why is this using SM_CXICON instead of SM_CXCURSOR?
2150 *
2151 * PARAMS
2152 * hdc [I] Handle to device context
2153 * x0 [I] X coordinate of upper left corner
2154 * y0 [I] Y coordinate of upper left corner
2155 * hIcon [I] Handle to icon to draw
2156 * cxWidth [I] Width of icon
2157 * cyWidth [I] Height of icon
2158 * istep [I] Index of frame in animated cursor
2159 * hbr [I] Handle to background brush
2160 * flags [I] Icon-drawing flags
2161 *
2162 * RETURNS
2163 * Success: TRUE
2164 * Failure: FALSE
2165 */
2166 BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
2167 INT cxWidth, INT cyWidth, UINT istep,
2168 HBRUSH hbr, UINT flags )
2169 {
2170 CURSORICONINFO *ptr = GlobalLock16(HICON_16(hIcon));
2171 HDC hDC_off = 0, hMemDC;
2172 BOOL result = FALSE, DoOffscreen;
2173 HBITMAP hB_off = 0, hOld = 0;
2174
2175 if (!ptr) return FALSE;
2176 TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
2177 hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
2178
2179 hMemDC = CreateCompatibleDC (hdc);
2180 if (istep)
2181 FIXME_(icon)("Ignoring istep=%d\n", istep);
2182 if (flags & DI_NOMIRROR)
2183 FIXME_(icon)("Ignoring flag DI_NOMIRROR\n");
2184
2185 if (!flags) {
2186 FIXME_(icon)("no flags set? setting to DI_NORMAL\n");
2187 flags = DI_NORMAL;
2188 }
2189
2190 /* Calculate the size of the destination image. */
2191 if (cxWidth == 0)
2192 {
2193 if (flags & DI_DEFAULTSIZE)
2194 cxWidth = GetSystemMetrics (SM_CXICON);
2195 else
2196 cxWidth = ptr->nWidth;
2197 }
2198 if (cyWidth == 0)
2199 {
2200 if (flags & DI_DEFAULTSIZE)
2201 cyWidth = GetSystemMetrics (SM_CYICON);
2202 else
2203 cyWidth = ptr->nHeight;
2204 }
2205
2206 DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
2207
2208 if (DoOffscreen) {
2209 RECT r;
2210
2211 r.left = 0;
2212 r.top = 0;
2213 r.right = cxWidth;
2214 r.bottom = cxWidth;
2215
2216 hDC_off = CreateCompatibleDC(hdc);
2217 hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth);
2218 if (hDC_off && hB_off) {
2219 hOld = SelectObject(hDC_off, hB_off);
2220 FillRect(hDC_off, &r, hbr);
2221 }
2222 }
2223
2224 if (hMemDC && (!DoOffscreen || (hDC_off && hB_off)))
2225 {
2226 HBITMAP hXorBits, hAndBits;
2227 COLORREF oldFg, oldBg;
2228 INT nStretchMode;
2229
2230 nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
2231
2232 hXorBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
2233 ptr->bPlanes, ptr->bBitsPerPixel,
2234 (char *)(ptr + 1)
2235 + ptr->nHeight *
2236 get_bitmap_width_bytes(ptr->nWidth,1) );
2237 hAndBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
2238 1, 1, (char *)(ptr+1) );
2239 oldFg = SetTextColor( hdc, RGB(0,0,0) );
2240 oldBg = SetBkColor( hdc, RGB(255,255,255) );
2241
2242 if (hXorBits && hAndBits)
2243 {
2244 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
2245 if (flags & DI_MASK)
2246 {
2247 if (DoOffscreen)
2248 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
2249 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
2250 else
2251 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
2252 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
2253 }
2254 SelectObject( hMemDC, hXorBits );
2255 if (flags & DI_IMAGE)
2256 {
2257 if (DoOffscreen)
2258 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
2259 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
2260 else
2261 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
2262 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
2263 }
2264 SelectObject( hMemDC, hBitTemp );
2265 result = TRUE;
2266 }
2267
2268 SetTextColor( hdc, oldFg );
2269 SetBkColor( hdc, oldBg );
2270 if (hXorBits) DeleteObject( hXorBits );
2271 if (hAndBits) DeleteObject( hAndBits );
2272 SetStretchBltMode (hdc, nStretchMode);
2273 if (DoOffscreen) {
2274 BitBlt(hdc, x0, y0, cxWidth, cyWidth, hDC_off, 0, 0, SRCCOPY);
2275 SelectObject(hDC_off, hOld);
2276 }
2277 }
2278 if (hMemDC) DeleteDC( hMemDC );
2279 if (hDC_off) DeleteDC(hDC_off);
2280 if (hB_off) DeleteObject(hB_off);
2281 GlobalUnlock16(HICON_16(hIcon));
2282 return result;
2283 }
2284
2285 /***********************************************************************
2286 * DIB_FixColorsToLoadflags
2287 *
2288 * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
2289 * are in loadflags
2290 */
2291 static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
2292 {
2293 int colors;
2294 COLORREF c_W, c_S, c_F, c_L, c_C;
2295 int incr,i;
2296 RGBQUAD *ptr;
2297 int bitmap_type;
2298 LONG width;
2299 LONG height;
2300 WORD bpp;
2301 DWORD compr;
2302
2303 if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
2304 {
2305 WARN_(resource)("Invalid bitmap\n");
2306 return;
2307 }
2308
2309 if (bpp > 8) return;
2310
2311 if (bitmap_type == 0) /* BITMAPCOREHEADER */
2312 {
2313 incr = 3;
2314 colors = 1 << bpp;
2315 }
2316 else
2317 {
2318 incr = 4;
2319 colors = bmi->bmiHeader.biClrUsed;
2320 if (colors > 256) colors = 256;
2321 if (!colors && (bpp <= 8)) colors = 1 << bpp;
2322 }
2323
2324 c_W = GetSysColor(COLOR_WINDOW);
2325 c_S = GetSysColor(COLOR_3DSHADOW);
2326 c_F = GetSysColor(COLOR_3DFACE);
2327 c_L = GetSysColor(COLOR_3DLIGHT);
2328
2329 if (loadflags & LR_LOADTRANSPARENT) {
2330 switch (bpp) {
2331 case 1: pix = pix >> 7; break;
2332 case 4: pix = pix >> 4; break;
2333 case 8: break;
2334 default:
2335 WARN_(resource)("(%d): Unsupported depth\n", bpp);
2336 return;
2337 }
2338 if (pix >= colors) {
2339 WARN_(resource)("pixel has color index greater than biClrUsed!\n");
2340 return;
2341 }
2342 if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
2343 ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
2344 ptr->rgbBlue = GetBValue(c_W);
2345 ptr->rgbGreen = GetGValue(c_W);
2346 ptr->rgbRed = GetRValue(c_W);
2347 }
2348 if (loadflags & LR_LOADMAP3DCOLORS)
2349 for (i=0; i<colors; i++) {
2350 ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
2351 c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
2352 if (c_C == RGB(128, 128, 128)) {
2353 ptr->rgbRed = GetRValue(c_S);
2354 ptr->rgbGreen = GetGValue(c_S);
2355 ptr->rgbBlue = GetBValue(c_S);
2356 } else if (c_C == RGB(192, 192, 192)) {
2357 ptr->rgbRed = GetRValue(c_F);
2358 ptr->rgbGreen = GetGValue(c_F);
2359 ptr->rgbBlue = GetBValue(c_F);
2360 } else if (c_C == RGB(223, 223, 223)) {
2361 ptr->rgbRed = GetRValue(c_L);
2362 ptr->rgbGreen = GetGValue(c_L);
2363 ptr->rgbBlue = GetBValue(c_L);
2364 }
2365 }
2366 }
2367
2368
2369 /**********************************************************************
2370 * BITMAP_Load
2371 */
2372 static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
2373 INT desiredx, INT desiredy, UINT loadflags )
2374 {
2375 HBITMAP hbitmap = 0, orig_bm;
2376 HRSRC hRsrc;
2377 HGLOBAL handle;
2378 char *ptr = NULL;
2379 BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL;
2380 int size;
2381 BYTE pix;
2382 char *bits;
2383 LONG width, height, new_width, new_height;
2384 WORD bpp_dummy;
2385 DWORD compr_dummy;
2386 INT bm_type;
2387 HDC screen_mem_dc = NULL;
2388
2389 if (!(loadflags & LR_LOADFROMFILE))
2390 {
2391 if (!instance)
2392 {
2393 /* OEM bitmap: try to load the resource from user32.dll */
2394 instance = user32_module;
2395 }
2396
2397 if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
2398 if (!(handle = LoadResource( instance, hRsrc ))) return 0;
2399
2400 if ((info = LockResource( handle )) == NULL) return 0;
2401 }
2402 else
2403 {
2404 BITMAPFILEHEADER * bmfh;
2405
2406 if (!(ptr = map_fileW( name, NULL ))) return 0;
2407 info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
2408 bmfh = (BITMAPFILEHEADER *)ptr;
2409 if (!( bmfh->bfType == 0x4d42 /* 'BM' */ &&
2410 bmfh->bfReserved1 == 0 &&
2411 bmfh->bfReserved2 == 0))
2412 {
2413 WARN("Invalid/unsupported bitmap format!\n");
2414 UnmapViewOfFile( ptr );
2415 return 0;
2416 }
2417 }
2418
2419 size = bitmap_info_size(info, DIB_RGB_COLORS);
2420 fix_info = HeapAlloc(GetProcessHeap(), 0, size);
2421 scaled_info = HeapAlloc(GetProcessHeap(), 0, size);
2422
2423 if (!fix_info || !scaled_info) goto end;
2424 memcpy(fix_info, info, size);
2425
2426 pix = *((LPBYTE)info + size);
2427 DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
2428
2429 memcpy(scaled_info, fix_info, size);
2430 bm_type = DIB_GetBitmapInfo( &fix_info->bmiHeader, &width, &height,
2431 &bpp_dummy, &compr_dummy);
2432 if(desiredx != 0)
2433 new_width = desiredx;
2434 else
2435 new_width = width;
2436
2437 if(desiredy != 0)
2438 new_height = height > 0 ? desiredy : -desiredy;
2439 else
2440 new_height = height;
2441
2442 if(bm_type == 0)
2443 {
2444 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader;
2445 core->bcWidth = new_width;
2446 core->bcHeight = new_height;
2447 }
2448 else
2449 {
2450 scaled_info->bmiHeader.biWidth = new_width;
2451 scaled_info->bmiHeader.biHeight = new_height;
2452 }
2453
2454 if (new_height < 0) new_height = -new_height;
2455
2456 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2457 if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end;
2458
2459 bits = (char *)info + size;
2460
2461 if (loadflags & LR_CREATEDIBSECTION)
2462 {
2463 scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
2464 hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0);
2465 }
2466 else
2467 {
2468 if (is_dib_monochrome(fix_info))
2469 hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL);
2470 else
2471 hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height);
2472 }
2473
2474 orig_bm = SelectObject(screen_mem_dc, hbitmap);
2475 StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
2476 SelectObject(screen_mem_dc, orig_bm);
2477
2478 end:
2479 if (screen_mem_dc) DeleteDC(screen_mem_dc);
2480 HeapFree(GetProcessHeap(), 0, scaled_info);
2481 HeapFree(GetProcessHeap(), 0, fix_info);
2482 if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
2483
2484 return hbitmap;
2485 }
2486
2487 /**********************************************************************
2488 * LoadImageA (USER32.@)
2489 *
2490 * See LoadImageW.
2491 */
2492 HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
2493 INT desiredx, INT desiredy, UINT loadflags)
2494 {
2495 HANDLE res;
2496 LPWSTR u_name;
2497
2498 if (!HIWORD(name))
2499 return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
2500
2501 __TRY {
2502 DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2503 u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
2504 MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
2505 }
2506 __EXCEPT_PAGE_FAULT {
2507 SetLastError( ERROR_INVALID_PARAMETER );
2508 return 0;
2509 }
2510 __ENDTRY
2511 res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
2512 HeapFree(GetProcessHeap(), 0, u_name);
2513 return res;
2514 }
2515
2516
2517 /******************************************************************************
2518 * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
2519 *
2520 * PARAMS
2521 * hinst [I] Handle of instance that contains image
2522 * name [I] Name of image
2523 * type [I] Type of image
2524 * desiredx [I] Desired width
2525 * desiredy [I] Desired height
2526 * loadflags [I] Load flags
2527 *
2528 * RETURNS
2529 * Success: Handle to newly loaded image
2530 * Failure: NULL
2531 *
2532 * FIXME: Implementation lacks some features, see LR_ defines in winuser.h
2533 */
2534 HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
2535 INT desiredx, INT desiredy, UINT loadflags )
2536 {
2537 TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n",
2538 hinst,debugstr_w(name),type,desiredx,desiredy,loadflags);
2539
2540 if (loadflags & LR_DEFAULTSIZE) {
2541 if (type == IMAGE_ICON) {
2542 if (!desiredx) desiredx = GetSystemMetrics(SM_CXICON);
2543 if (!desiredy) desiredy = GetSystemMetrics(SM_CYICON);
2544 } else if (type == IMAGE_CURSOR) {
2545 if (!desiredx) desiredx = GetSystemMetrics(SM_CXCURSOR);
2546 if (!desiredy) desiredy = GetSystemMetrics(SM_CYCURSOR);
2547 }
2548 }
2549 if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
2550 switch (type) {
2551 case IMAGE_BITMAP:
2552 return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags );
2553
2554 case IMAGE_ICON:
2555 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2556 if (screen_dc)
2557 {
2558 UINT palEnts = GetSystemPaletteEntries(screen_dc, 0, 0, NULL);
2559 if (palEnts == 0) palEnts = 256;
2560 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2561 palEnts, FALSE, loadflags);
2562 }
2563 break;
2564
2565 case IMAGE_CURSOR:
2566 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2567 1, TRUE, loadflags);
2568 }
2569 return 0;
2570 }
2571
2572 /******************************************************************************
2573 * CopyImage (USER32.@) Creates new image and copies attributes to it
2574 *
2575 * PARAMS
2576 * hnd [I] Handle to image to copy
2577 * type [I] Type of image to copy
2578 * desiredx [I] Desired width of new image
2579 * desiredy [I] Desired height of new image
2580 * flags [I] Copy flags
2581 *
2582 * RETURNS
2583 * Success: Handle to newly created image
2584 * Failure: NULL
2585 *
2586 * BUGS
2587 * Only Windows NT 4.0 supports the LR_COPYRETURNORG flag for bitmaps,
2588 * all other versions (95/2000/XP have been tested) ignore it.
2589 *
2590 * NOTES
2591 * If LR_CREATEDIBSECTION is absent, the copy will be monochrome for
2592 * a monochrome source bitmap or if LR_MONOCHROME is present, otherwise
2593 * the copy will have the same depth as the screen.
2594 * The content of the image will only be copied if the bit depth of the
2595 * original image is compatible with the bit depth of the screen, or
2596 * if the source is a DIB section.
2597 * The LR_MONOCHROME flag is ignored if LR_CREATEDIBSECTION is present.
2598 */
2599 HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
2600 INT desiredy, UINT flags )
2601 {
2602 TRACE("hnd=%p, type=%u, desiredx=%d, desiredy=%d, flags=%x\n",
2603 hnd, type, desiredx, desiredy, flags);
2604
2605 switch (type)
2606 {
2607 case IMAGE_BITMAP:
2608 {
2609 HBITMAP res = NULL;
2610 DIBSECTION ds;
2611 int objSize;
2612 BITMAPINFO * bi;
2613
2614 objSize = GetObjectW( hnd, sizeof(ds), &ds );
2615 if (!objSize) return 0;
2616 if ((desiredx < 0) || (desiredy < 0)) return 0;
2617
2618 if (flags & LR_COPYFROMRESOURCE)
2619 {
2620 FIXME("The flag LR_COPYFROMRESOURCE is not implemented for bitmaps\n");
2621 }
2622
2623 if (desiredx == 0) desiredx = ds.dsBm.bmWidth;
2624 if (desiredy == 0) desiredy = ds.dsBm.bmHeight;
2625
2626 /* Allocate memory for a BITMAPINFOHEADER structure and a
2627 color table. The maximum number of colors in a color table
2628 is 256 which corresponds to a bitmap with depth 8.
2629 Bitmaps with higher depths don't have color tables. */
2630 bi = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
2631 if (!bi) return 0;
2632
2633 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2634 bi->bmiHeader.biPlanes = ds.dsBm.bmPlanes;
2635 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2636 bi->bmiHeader.biCompression = BI_RGB;
2637
2638 if (flags & LR_CREATEDIBSECTION)
2639 {
2640 /* Create a DIB section. LR_MONOCHROME is ignored */
2641 void * bits;
2642 HDC dc = CreateCompatibleDC(NULL);
2643
2644 if (objSize == sizeof(DIBSECTION))
2645 {
2646 /* The source bitmap is a DIB.
2647 Get its attributes to create an exact copy */
2648 memcpy(bi, &ds.dsBmih, sizeof(BITMAPINFOHEADER));
2649 }
2650
2651 /* Get the color table or the color masks */
2652 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2653
2654 bi->bmiHeader.biWidth = desiredx;
2655 bi->bmiHeader.biHeight = desiredy;
2656 bi->bmiHeader.biSizeImage = 0;
2657
2658 res = CreateDIBSection(dc, bi, DIB_RGB_COLORS, &bits, NULL, 0);
2659 DeleteDC(dc);
2660 }
2661 else
2662 {
2663 /* Create a device-dependent bitmap */
2664
2665 BOOL monochrome = (flags & LR_MONOCHROME);
2666
2667 if (objSize == sizeof(DIBSECTION))
2668 {
2669 /* The source bitmap is a DIB section.
2670 Get its attributes */
2671 HDC dc = CreateCompatibleDC(NULL);
2672 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2673 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2674 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2675 DeleteDC(dc);
2676
2677 if (!monochrome && ds.dsBm.bmBitsPixel == 1)
2678 {
2679 /* Look if the colors of the DIB are black and white */
2680
2681 monochrome =
2682 (bi->bmiColors[0].rgbRed == 0xff
2683 && bi->bmiColors[0].rgbGreen == 0xff
2684 && bi->bmiColors[0].rgbBlue == 0xff
2685 && bi->bmiColors[0].rgbReserved == 0
2686 && bi->bmiColors[1].rgbRed == 0
2687 && bi->bmiColors[1].rgbGreen == 0
2688 && bi->bmiColors[1].rgbBlue == 0
2689 && bi->bmiColors[1].rgbReserved == 0)
2690 ||
2691 (bi->bmiColors[0].rgbRed == 0
2692 && bi->bmiColors[0].rgbGreen == 0
2693 && bi->bmiColors[0].rgbBlue == 0
2694 && bi->bmiColors[0].rgbReserved == 0
2695 && bi->bmiColors[1].rgbRed == 0xff
2696 && bi->bmiColors[1].rgbGreen == 0xff
2697 && bi->bmiColors[1].rgbBlue == 0xff
2698 && bi->bmiColors[1].rgbReserved == 0);
2699 }
2700 }
2701 else if (!monochrome)
2702 {
2703 monochrome = ds.dsBm.bmBitsPixel == 1;
2704 }
2705
2706 if (monochrome)
2707 {
2708 res = CreateBitmap(desiredx, desiredy, 1, 1, NULL);
2709 }
2710 else
2711 {
2712 HDC screenDC = GetDC(NULL);
2713 res = CreateCompatibleBitmap(screenDC, desiredx, desiredy);
2714 ReleaseDC(NULL, screenDC);
2715 }
2716 }
2717
2718 if (res)
2719 {
2720 /* Only copy the bitmap if it's a DIB section or if it's
2721 compatible to the screen */
2722 BOOL copyContents;
2723
2724 if (objSize == sizeof(DIBSECTION))
2725 {
2726 copyContents = TRUE;
2727 }
2728 else
2729 {
2730 HDC screenDC = GetDC(NULL);
2731 int screen_depth = GetDeviceCaps(screenDC, BITSPIXEL);
2732 ReleaseDC(NULL, screenDC);
2733
2734 copyContents = (ds.dsBm.bmBitsPixel == 1 || ds.dsBm.bmBitsPixel == screen_depth);
2735 }
2736
2737 if (copyContents)
2738 {
2739 /* The source bitmap may already be selected in a device context,
2740 use GetDIBits/StretchDIBits and not StretchBlt */
2741
2742 HDC dc;
2743 void * bits;
2744
2745 dc = CreateCompatibleDC(NULL);
2746
2747 bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
2748 bi->bmiHeader.biHeight = ds.dsBm.bmHeight;
2749 bi->bmiHeader.biSizeImage = 0;
2750 bi->bmiHeader.biClrUsed = 0;
2751 bi->bmiHeader.biClrImportant = 0;
2752
2753 /* Fill in biSizeImage */
2754 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2755 bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, bi->bmiHeader.biSizeImage);
2756
2757 if (bits)
2758 {
2759 HBITMAP oldBmp;
2760
2761 /* Get the image bits of the source bitmap */
2762 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, bits, bi, DIB_RGB_COLORS);
2763
2764 /* Copy it to the destination bitmap */
2765 oldBmp = SelectObject(dc, res);
2766 StretchDIBits(dc, 0, 0, desiredx, desiredy,
2767 0, 0, ds.dsBm.bmWidth, ds.dsBm.bmHeight,
2768 bits, bi, DIB_RGB_COLORS, SRCCOPY);
2769 SelectObject(dc, oldBmp);
2770
2771 HeapFree(GetProcessHeap(), 0, bits);
2772 }
2773
2774 DeleteDC(dc);
2775 }
2776
2777 if (flags & LR_COPYDELETEORG)
2778 {
2779 DeleteObject(hnd);
2780 }
2781 }
2782 HeapFree(GetProcessHeap(), 0, bi);
2783 return res;
2784 }
2785 case IMAGE_ICON:
2786 return CURSORICON_ExtCopy(hnd,type, desiredx, desiredy, flags);
2787 case IMAGE_CURSOR:
2788 /* Should call CURSORICON_ExtCopy but more testing
2789 * needs to be done before we change this
2790 */
2791 if (flags) FIXME("Flags are ignored\n");
2792 return CopyCursor(hnd);
2793 }
2794 return 0;
2795 }
2796
2797
2798 /******************************************************************************
2799 * LoadBitmapW (USER32.@) Loads bitmap from the executable file
2800 *
2801 * RETURNS
2802 * Success: Handle to specified bitmap
2803 * Failure: NULL
2804 */
2805 HBITMAP WINAPI LoadBitmapW(
2806 HINSTANCE instance, /* [in] Handle to application instance */
2807 LPCWSTR name) /* [in] Address of bitmap resource name */
2808 {
2809 return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2810 }
2811
2812 /**********************************************************************
2813 * LoadBitmapA (USER32.@)
2814 *
2815 * See LoadBitmapW.
2816 */
2817 HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
2818 {
2819 return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2820 }
useful hacks and other patches not (yet) suitable for mainline