2 * Cursor and icon support
4 * Copyright 1995 Alexandre Julliard
5 * 1996 Martin Von Loewis
7 * 1998 Turchanov Sergey
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.
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.
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
28 * Cursors and icons are stored in a global heap block, with the
31 * CURSORICONINFO info;
35 * The bits structures are in the format of a device-dependent bitmap.
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 :-(
44 #include "wine/port.h"
54 #include "wine/winbase16.h"
55 #include "wine/winuser16.h"
56 #include "wine/exception.h"
57 #include "wine/debug.h"
59 #include "user_private.h"
61 WINE_DEFAULT_DEBUG_CHANNEL(cursor);
62 WINE_DECLARE_DEBUG_CHANNEL(icon);
63 WINE_DECLARE_DEBUG_CHANNEL(resource);
76 } CURSORICONFILEDIRENTRY;
83 CURSORICONFILEDIRENTRY idEntries[1];
88 static RECT CURSOR_ClipRect; /* Cursor clipping rect */
92 static const WCHAR DISPLAYW[] = {'D','I','S','P','L','A','Y',0};
95 /**********************************************************************
96 * ICONCACHE for cursors/icons loaded with LR_SHARED.
98 * FIXME: This should not be allocated on the system heap, but on a
99 * subsystem-global heap (i.e. one for all Win16 processes,
100 * and one for each Win32 process).
102 typedef struct tagICONCACHE
104 struct tagICONCACHE *next;
115 static ICONCACHE *IconAnchor = NULL;
117 static CRITICAL_SECTION IconCrst;
118 static CRITICAL_SECTION_DEBUG critsect_debug =
121 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
122 0, 0, { (DWORD_PTR)(__FILE__ ": IconCrst") }
124 static CRITICAL_SECTION IconCrst = { &critsect_debug, -1, 0, 0, 0, 0 };
126 static const WORD ICON_HOTSPOT = 0x4242;
129 /**********************************************************************
130 * User objects management
133 struct cursoricon_object
135 struct user_object obj; /* object header */
136 ULONG_PTR param; /* opaque param used by 16-bit code */
137 /* followed by cursor data in CURSORICONINFO format */
140 static HICON alloc_icon_handle( unsigned int size )
142 struct cursoricon_object *obj = HeapAlloc( GetProcessHeap(), 0, sizeof(*obj) + size );
145 return alloc_user_handle( &obj->obj, USER_ICON );
148 static struct tagCURSORICONINFO *get_icon_ptr( HICON handle )
150 struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON );
151 if (obj == OBJ_OTHER_PROCESS)
153 WARN( "icon handle %p from other process\n", handle );
156 return obj ? (struct tagCURSORICONINFO *)(obj + 1) : NULL;
159 static void release_icon_ptr( HICON handle, struct tagCURSORICONINFO *ptr )
161 release_user_handle_ptr( (struct cursoricon_object *)ptr - 1 );
164 static BOOL free_icon_handle( HICON handle )
166 struct cursoricon_object *obj = free_user_handle( handle, USER_ICON );
168 if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle );
171 ULONG_PTR param = obj->param;
172 HeapFree( GetProcessHeap(), 0, obj );
173 if (wow_handlers.free_icon_param && param) wow_handlers.free_icon_param( param );
179 ULONG_PTR get_icon_param( HICON handle )
182 struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON );
184 if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle );
188 release_user_handle_ptr( obj );
193 ULONG_PTR set_icon_param( HICON handle, ULONG_PTR param )
196 struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON );
198 if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle );
203 release_user_handle_ptr( obj );
209 /***********************************************************************
212 * Helper function to map a file to memory:
214 * [RETURN] ptr - pointer to mapped file
215 * [RETURN] filesize - pointer size of file to be stored if not NULL
217 static void *map_fileW( LPCWSTR name, LPDWORD filesize )
219 HANDLE hFile, hMapping;
222 hFile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL,
223 OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, 0 );
224 if (hFile != INVALID_HANDLE_VALUE)
226 hMapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
229 ptr = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 );
230 CloseHandle( hMapping );
232 *filesize = GetFileSize( hFile, NULL );
234 CloseHandle( hFile );
240 /***********************************************************************
241 * get_bitmap_width_bytes
243 * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
246 static int get_bitmap_width_bytes( int width, int bpp )
251 return 2 * ((width+15) / 16);
253 return 2 * ((width+3) / 4);
258 return width + (width & 1);
265 WARN("Unknown depth %d, please report.\n", bpp );
271 /***********************************************************************
272 * get_dib_width_bytes
274 * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
276 static int get_dib_width_bytes( int width, int depth )
282 case 1: words = (width + 31) / 32; break;
283 case 4: words = (width + 7) / 8; break;
284 case 8: words = (width + 3) / 4; break;
286 case 16: words = (width + 1) / 2; break;
287 case 24: words = (width * 3 + 3)/4; break;
289 WARN("(%d): Unsupported depth\n", depth );
298 /***********************************************************************
301 * Return the size of the bitmap info structure including color table.
303 static int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
305 int colors, masks = 0;
307 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
309 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
310 colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
311 return sizeof(BITMAPCOREHEADER) + colors *
312 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
314 else /* assume BITMAPINFOHEADER */
316 colors = info->bmiHeader.biClrUsed;
317 if (colors > 256) /* buffer overflow otherwise */
319 if (!colors && (info->bmiHeader.biBitCount <= 8))
320 colors = 1 << info->bmiHeader.biBitCount;
321 if (info->bmiHeader.biCompression == BI_BITFIELDS) masks = 3;
322 return sizeof(BITMAPINFOHEADER) + masks * sizeof(DWORD) + colors *
323 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
328 /***********************************************************************
331 * Returns whether a DIB can be converted to a monochrome DDB.
333 * A DIB can be converted if its color table contains only black and
334 * white. Black must be the first color in the color table.
336 * Note : If the first color in the color table is white followed by
337 * black, we can't convert it to a monochrome DDB with
338 * SetDIBits, because black and white would be inverted.
340 static BOOL is_dib_monochrome( const BITMAPINFO* info )
342 if (info->bmiHeader.biBitCount != 1) return FALSE;
344 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
346 const RGBTRIPLE *rgb = ((const BITMAPCOREINFO*)info)->bmciColors;
348 /* Check if the first color is black */
349 if ((rgb->rgbtRed == 0) && (rgb->rgbtGreen == 0) && (rgb->rgbtBlue == 0))
353 /* Check if the second color is white */
354 return ((rgb->rgbtRed == 0xff) && (rgb->rgbtGreen == 0xff)
355 && (rgb->rgbtBlue == 0xff));
359 else /* assume BITMAPINFOHEADER */
361 const RGBQUAD *rgb = info->bmiColors;
363 /* Check if the first color is black */
364 if ((rgb->rgbRed == 0) && (rgb->rgbGreen == 0) &&
365 (rgb->rgbBlue == 0) && (rgb->rgbReserved == 0))
369 /* Check if the second color is white */
370 return ((rgb->rgbRed == 0xff) && (rgb->rgbGreen == 0xff)
371 && (rgb->rgbBlue == 0xff) && (rgb->rgbReserved == 0));
377 /***********************************************************************
380 * Get the info from a bitmap header.
381 * Return 1 for INFOHEADER, 0 for COREHEADER,
382 * 4 for V4HEADER, 5 for V5HEADER, -1 for error.
384 static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
385 LONG *height, WORD *bpp, DWORD *compr )
387 if (header->biSize == sizeof(BITMAPINFOHEADER))
389 *width = header->biWidth;
390 *height = header->biHeight;
391 *bpp = header->biBitCount;
392 *compr = header->biCompression;
395 if (header->biSize == sizeof(BITMAPCOREHEADER))
397 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header;
398 *width = core->bcWidth;
399 *height = core->bcHeight;
400 *bpp = core->bcBitCount;
404 if (header->biSize == sizeof(BITMAPV4HEADER))
406 const BITMAPV4HEADER *v4hdr = (const BITMAPV4HEADER *)header;
407 *width = v4hdr->bV4Width;
408 *height = v4hdr->bV4Height;
409 *bpp = v4hdr->bV4BitCount;
410 *compr = v4hdr->bV4V4Compression;
413 if (header->biSize == sizeof(BITMAPV5HEADER))
415 const BITMAPV5HEADER *v5hdr = (const BITMAPV5HEADER *)header;
416 *width = v5hdr->bV5Width;
417 *height = v5hdr->bV5Height;
418 *bpp = v5hdr->bV5BitCount;
419 *compr = v5hdr->bV5Compression;
422 ERR("(%d): unknown/wrong size for header\n", header->biSize );
426 /**********************************************************************
427 * CURSORICON_FindSharedIcon
429 static HICON CURSORICON_FindSharedIcon( HMODULE hModule, HRSRC hRsrc )
434 EnterCriticalSection( &IconCrst );
436 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
437 if ( ptr->hModule == hModule && ptr->hRsrc == hRsrc )
444 LeaveCriticalSection( &IconCrst );
449 /*************************************************************************
450 * CURSORICON_FindCache
452 * Given a handle, find the corresponding cache element
455 * Handle [I] handle to an Image
458 * Success: The cache entry
462 static ICONCACHE* CURSORICON_FindCache(HICON hIcon)
465 ICONCACHE *pRet=NULL;
466 BOOL IsFound = FALSE;
468 EnterCriticalSection( &IconCrst );
470 for (ptr = IconAnchor; ptr != NULL && !IsFound; ptr = ptr->next)
472 if ( hIcon == ptr->hIcon )
479 LeaveCriticalSection( &IconCrst );
484 /**********************************************************************
485 * CURSORICON_AddSharedIcon
487 static void CURSORICON_AddSharedIcon( HMODULE hModule, HRSRC hRsrc, HRSRC hGroupRsrc, HICON hIcon )
489 ICONCACHE *ptr = HeapAlloc( GetProcessHeap(), 0, sizeof(ICONCACHE) );
492 ptr->hModule = hModule;
495 ptr->hGroupRsrc = hGroupRsrc;
498 EnterCriticalSection( &IconCrst );
499 ptr->next = IconAnchor;
501 LeaveCriticalSection( &IconCrst );
504 /**********************************************************************
505 * CURSORICON_DelSharedIcon
507 static INT CURSORICON_DelSharedIcon( HICON hIcon )
512 EnterCriticalSection( &IconCrst );
514 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
515 if ( ptr->hIcon == hIcon )
517 if ( ptr->count > 0 ) ptr->count--;
522 LeaveCriticalSection( &IconCrst );
527 /**********************************************************************
530 BOOL get_icon_size( HICON handle, SIZE *size )
532 CURSORICONINFO *info;
534 if (!(info = get_icon_ptr( handle ))) return FALSE;
535 size->cx = info->nWidth;
536 size->cy = info->nHeight;
537 release_icon_ptr( handle, info );
542 * The following macro functions account for the irregularities of
543 * accessing cursor and icon resources in files and resource entries.
545 typedef BOOL (*fnGetCIEntry)( LPVOID dir, int n,
546 int *width, int *height, int *bits );
548 /**********************************************************************
549 * CURSORICON_FindBestIcon
551 * Find the icon closest to the requested size and bit depth.
553 static int CURSORICON_FindBestIcon( LPVOID dir, fnGetCIEntry get_entry,
554 int width, int height, int depth )
556 int i, cx, cy, bits, bestEntry = -1;
557 UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
558 UINT iTempXDiff, iTempYDiff, iTempColorDiff;
561 iTotalDiff = 0xFFFFFFFF;
562 iColorDiff = 0xFFFFFFFF;
563 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
565 iTempXDiff = abs(width - cx);
566 iTempYDiff = abs(height - cy);
568 if(iTotalDiff > (iTempXDiff + iTempYDiff))
572 iTotalDiff = iXDiff + iYDiff;
576 /* Find Best Colors for Best Fit */
577 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
579 if(abs(width - cx) == iXDiff && abs(height - cy) == iYDiff)
581 iTempColorDiff = abs(depth - bits);
582 if(iColorDiff > iTempColorDiff)
585 iColorDiff = iTempColorDiff;
593 static BOOL CURSORICON_GetResIconEntry( LPVOID dir, int n,
594 int *width, int *height, int *bits )
596 CURSORICONDIR *resdir = dir;
599 if ( resdir->idCount <= n )
601 icon = &resdir->idEntries[n].ResInfo.icon;
602 *width = icon->bWidth;
603 *height = icon->bHeight;
604 *bits = resdir->idEntries[n].wBitCount;
608 /**********************************************************************
609 * CURSORICON_FindBestCursor
611 * Find the cursor closest to the requested size.
613 * FIXME: parameter 'color' ignored.
615 static int CURSORICON_FindBestCursor( LPVOID dir, fnGetCIEntry get_entry,
616 int width, int height, int depth )
618 int i, maxwidth, maxheight, cx, cy, bits, bestEntry = -1;
620 /* Double height to account for AND and XOR masks */
624 /* First find the largest one smaller than or equal to the requested size*/
626 maxwidth = maxheight = 0;
627 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
629 if ((cx <= width) && (cy <= height) &&
630 (cx > maxwidth) && (cy > maxheight))
637 if (bestEntry != -1) return bestEntry;
639 /* Now find the smallest one larger than the requested size */
641 maxwidth = maxheight = 255;
642 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
644 if (((cx < maxwidth) && (cy < maxheight)) || (bestEntry == -1))
655 static BOOL CURSORICON_GetResCursorEntry( LPVOID dir, int n,
656 int *width, int *height, int *bits )
658 CURSORICONDIR *resdir = dir;
661 if ( resdir->idCount <= n )
663 cursor = &resdir->idEntries[n].ResInfo.cursor;
664 *width = cursor->wWidth;
665 *height = cursor->wHeight;
666 *bits = resdir->idEntries[n].wBitCount;
670 static CURSORICONDIRENTRY *CURSORICON_FindBestIconRes( CURSORICONDIR * dir,
671 int width, int height, int depth )
675 n = CURSORICON_FindBestIcon( dir, CURSORICON_GetResIconEntry,
676 width, height, depth );
679 return &dir->idEntries[n];
682 static CURSORICONDIRENTRY *CURSORICON_FindBestCursorRes( CURSORICONDIR *dir,
683 int width, int height, int depth )
685 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetResCursorEntry,
686 width, height, depth );
689 return &dir->idEntries[n];
692 static BOOL CURSORICON_GetFileEntry( LPVOID dir, int n,
693 int *width, int *height, int *bits )
695 CURSORICONFILEDIR *filedir = dir;
696 CURSORICONFILEDIRENTRY *entry;
698 if ( filedir->idCount <= n )
700 entry = &filedir->idEntries[n];
701 *width = entry->bWidth;
702 *height = entry->bHeight;
703 *bits = entry->bColorCount;
707 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestCursorFile( CURSORICONFILEDIR *dir,
708 int width, int height, int depth )
710 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetFileEntry,
711 width, height, depth );
714 return &dir->idEntries[n];
717 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestIconFile( CURSORICONFILEDIR *dir,
718 int width, int height, int depth )
720 int n = CURSORICON_FindBestIcon( dir, CURSORICON_GetFileEntry,
721 width, height, depth );
724 return &dir->idEntries[n];
727 /***********************************************************************
730 * A helper function that stretches a bitmap buffer into an HBITMAP.
733 * hDest [I] The handle of the destination bitmap.
734 * pDestInfo [I] The BITMAPINFO of the destination bitmap.
735 * pSrcInfo [I] The BITMAPINFO of the source bitmap.
736 * pSrcBits [I] A pointer to the source bitmap buffer.
738 static BOOL stretch_blt_icon(HBITMAP hDest, BITMAPINFO *pDestInfo, BITMAPINFO *pSrcInfo, char *pSrcBits)
742 HDC hdcMem = CreateCompatibleDC(screen_dc);
746 hOld = SelectObject(hdcMem, hDest);
747 res = StretchDIBits(hdcMem,
748 0, 0, pDestInfo->bmiHeader.biWidth, pDestInfo->bmiHeader.biHeight,
749 0, 0, pSrcInfo->bmiHeader.biWidth, pSrcInfo->bmiHeader.biHeight,
750 pSrcBits, pSrcInfo, DIB_RGB_COLORS, SRCCOPY);
751 SelectObject(hdcMem, hOld);
758 static HICON CURSORICON_CreateIconFromBMI( BITMAPINFO *bmi,
759 POINT16 hotspot, BOOL bIcon,
761 INT width, INT height,
765 int sizeAnd, sizeXor;
766 HBITMAP hAndBits = 0, hXorBits = 0; /* error condition for later */
767 BITMAP bmpXor, bmpAnd;
770 BITMAPINFO *pSrcInfo, *pDestInfo;
772 if (dwVersion == 0x00020000)
774 FIXME_(cursor)("\t2.xx resources are not supported\n");
778 /* Check bitmap header */
780 if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) &&
781 (bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) ||
782 bmi->bmiHeader.biCompression != BI_RGB) )
784 WARN_(cursor)("\tinvalid resource bitmap header.\n");
788 size = bitmap_info_size( bmi, DIB_RGB_COLORS );
790 if (!width) width = bmi->bmiHeader.biWidth;
791 if (!height) height = bmi->bmiHeader.biHeight/2;
792 do_stretch = (bmi->bmiHeader.biHeight/2 != height) ||
793 (bmi->bmiHeader.biWidth != width);
795 /* Scale the hotspot */
796 if (do_stretch && hotspot.x != ICON_HOTSPOT && hotspot.y != ICON_HOTSPOT)
798 hotspot.x = (hotspot.x * width) / bmi->bmiHeader.biWidth;
799 hotspot.y = (hotspot.y * height) / (bmi->bmiHeader.biHeight / 2);
802 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
805 /* Make sure we have room for the monochrome bitmap later on.
806 * Note that BITMAPINFOINFO and BITMAPCOREHEADER are the same
807 * up to and including the biBitCount. In-memory icon resource
808 * format is as follows:
810 * BITMAPINFOHEADER icHeader // DIB header
811 * RGBQUAD icColors[] // Color table
812 * BYTE icXOR[] // DIB bits for XOR mask
813 * BYTE icAND[] // DIB bits for AND mask
816 pSrcInfo = HeapAlloc( GetProcessHeap(), 0,
817 max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD)));
818 pDestInfo = HeapAlloc( GetProcessHeap(), 0,
819 max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD)));
820 if (pSrcInfo && pDestInfo)
822 memcpy( pSrcInfo, bmi, size );
823 pSrcInfo->bmiHeader.biHeight /= 2;
825 memcpy( pDestInfo, bmi, size );
826 pDestInfo->bmiHeader.biWidth = width;
827 pDestInfo->bmiHeader.biHeight = height;
828 pDestInfo->bmiHeader.biSizeImage = 0;
830 /* Create the XOR bitmap */
831 if(pSrcInfo->bmiHeader.biBitCount == 32)
833 void *pDIBBuffer = NULL;
834 hXorBits = CreateDIBSection(screen_dc, pDestInfo, DIB_RGB_COLORS, &pDIBBuffer, NULL, 0);
838 if (!stretch_blt_icon(hXorBits, pDestInfo, pSrcInfo, (char*)bmi + size))
840 DeleteObject(hXorBits);
849 hXorBits = CreateCompatibleBitmap(screen_dc, width, height);
852 if (!stretch_blt_icon(hXorBits, pDestInfo, pSrcInfo, (char*)bmi + size))
854 DeleteObject(hXorBits);
861 if (is_dib_monochrome(bmi))
863 hXorBits = CreateBitmap(width, height, 1, 1, NULL);
864 SetDIBits(screen_dc, hXorBits, 0, height,
865 (char *)bmi + size, pSrcInfo, DIB_RGB_COLORS);
868 hXorBits = CreateDIBitmap(screen_dc, &pSrcInfo->bmiHeader,
869 CBM_INIT, (char *)bmi + size, pSrcInfo, DIB_RGB_COLORS);
875 char* xbits = (char *)bmi + size +
876 get_dib_width_bytes( bmi->bmiHeader.biWidth,
877 bmi->bmiHeader.biBitCount ) * abs( bmi->bmiHeader.biHeight ) / 2;
879 pSrcInfo->bmiHeader.biBitCount = 1;
880 if (pSrcInfo->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
882 RGBQUAD *rgb = pSrcInfo->bmiColors;
884 pSrcInfo->bmiHeader.biClrUsed = pSrcInfo->bmiHeader.biClrImportant = 2;
885 rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
886 rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
887 rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
891 RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)pSrcInfo) + 1);
893 rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
894 rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
897 /* Create the AND bitmap */
900 hAndBits = CreateBitmap(width, height, 1, 1, NULL);
902 if (!stretch_blt_icon(hAndBits, pDestInfo, pSrcInfo, xbits))
904 DeleteObject(hAndBits);
910 hAndBits = CreateBitmap(width, height, 1, 1, NULL);
911 SetDIBits(screen_dc, hAndBits, 0, height,
912 xbits, pSrcInfo, DIB_RGB_COLORS);
917 DeleteObject( hXorBits );
923 HeapFree( GetProcessHeap(), 0, pSrcInfo );
924 HeapFree( GetProcessHeap(), 0, pDestInfo );
927 if( !hXorBits || !hAndBits )
929 WARN_(cursor)("\tunable to create an icon bitmap.\n");
933 /* Now create the CURSORICONINFO structure */
934 GetObjectA( hXorBits, sizeof(bmpXor), &bmpXor );
935 GetObjectA( hAndBits, sizeof(bmpAnd), &bmpAnd );
936 sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes;
937 sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
939 hObj = alloc_icon_handle( sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
942 CURSORICONINFO *info = get_icon_ptr( hObj );
944 info->ptHotSpot.x = hotspot.x;
945 info->ptHotSpot.y = hotspot.y;
946 info->nWidth = bmpXor.bmWidth;
947 info->nHeight = bmpXor.bmHeight;
948 info->nWidthBytes = bmpXor.bmWidthBytes;
949 info->bPlanes = bmpXor.bmPlanes;
950 info->bBitsPerPixel = bmpXor.bmBitsPixel;
952 /* Transfer the bitmap bits to the CURSORICONINFO structure */
954 GetBitmapBits( hAndBits, sizeAnd, info + 1 );
955 GetBitmapBits( hXorBits, sizeXor, (char *)(info + 1) + sizeAnd );
956 release_icon_ptr( hObj, info );
959 DeleteObject( hAndBits );
960 DeleteObject( hXorBits );
965 /**********************************************************************
966 * .ANI cursor support
968 #define RIFF_FOURCC( c0, c1, c2, c3 ) \
969 ( (DWORD)(BYTE)(c0) | ( (DWORD)(BYTE)(c1) << 8 ) | \
970 ( (DWORD)(BYTE)(c2) << 16 ) | ( (DWORD)(BYTE)(c3) << 24 ) )
972 #define ANI_RIFF_ID RIFF_FOURCC('R', 'I', 'F', 'F')
973 #define ANI_LIST_ID RIFF_FOURCC('L', 'I', 'S', 'T')
974 #define ANI_ACON_ID RIFF_FOURCC('A', 'C', 'O', 'N')
975 #define ANI_anih_ID RIFF_FOURCC('a', 'n', 'i', 'h')
976 #define ANI_seq__ID RIFF_FOURCC('s', 'e', 'q', ' ')
977 #define ANI_fram_ID RIFF_FOURCC('f', 'r', 'a', 'm')
979 #define ANI_FLAG_ICON 0x1
980 #define ANI_FLAG_SEQUENCE 0x2
996 const unsigned char *data;
999 static void dump_ani_header( const ani_header *header )
1001 TRACE(" header size: %d\n", header->header_size);
1002 TRACE(" frames: %d\n", header->num_frames);
1003 TRACE(" steps: %d\n", header->num_steps);
1004 TRACE(" width: %d\n", header->width);
1005 TRACE(" height: %d\n", header->height);
1006 TRACE(" bpp: %d\n", header->bpp);
1007 TRACE(" planes: %d\n", header->num_planes);
1008 TRACE(" display rate: %d\n", header->display_rate);
1009 TRACE(" flags: 0x%08x\n", header->flags);
1031 static void riff_find_chunk( DWORD chunk_id, DWORD chunk_type, const riff_chunk_t *parent_chunk, riff_chunk_t *chunk )
1033 const unsigned char *ptr = parent_chunk->data;
1034 const unsigned char *end = parent_chunk->data + (parent_chunk->data_size - (2 * sizeof(DWORD)));
1036 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) end -= sizeof(DWORD);
1040 if ((!chunk_type && *(DWORD *)ptr == chunk_id )
1041 || (chunk_type && *(DWORD *)ptr == chunk_type && *((DWORD *)ptr + 2) == chunk_id ))
1043 ptr += sizeof(DWORD);
1044 chunk->data_size = (*(DWORD *)ptr + 1) & ~1;
1045 ptr += sizeof(DWORD);
1046 if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) ptr += sizeof(DWORD);
1052 ptr += sizeof(DWORD);
1053 ptr += (*(DWORD *)ptr + 1) & ~1;
1054 ptr += sizeof(DWORD);
1062 * RIFF:'ACON' RIFF chunk
1063 * |- CHUNK:'anih' Header
1064 * |- CHUNK:'seq ' Sequence information (optional)
1065 * \- LIST:'fram' Frame list
1066 * |- CHUNK:icon Cursor frames
1071 static HCURSOR CURSORICON_CreateIconFromANI( const LPBYTE bits, DWORD bits_size,
1072 INT width, INT height, INT depth )
1075 ani_header header = {0};
1076 LPBYTE frame_bits = 0;
1078 CURSORICONFILEDIRENTRY *entry;
1080 riff_chunk_t root_chunk = { bits_size, bits };
1081 riff_chunk_t ACON_chunk = {0};
1082 riff_chunk_t anih_chunk = {0};
1083 riff_chunk_t fram_chunk = {0};
1084 const unsigned char *icon_data;
1086 TRACE("bits %p, bits_size %d\n", bits, bits_size);
1088 if (!bits) return 0;
1090 riff_find_chunk( ANI_ACON_ID, ANI_RIFF_ID, &root_chunk, &ACON_chunk );
1091 if (!ACON_chunk.data)
1093 ERR("Failed to get root chunk.\n");
1097 riff_find_chunk( ANI_anih_ID, 0, &ACON_chunk, &anih_chunk );
1098 if (!anih_chunk.data)
1100 ERR("Failed to get 'anih' chunk.\n");
1103 memcpy( &header, anih_chunk.data, sizeof(header) );
1104 dump_ani_header( &header );
1106 riff_find_chunk( ANI_fram_ID, ANI_LIST_ID, &ACON_chunk, &fram_chunk );
1107 if (!fram_chunk.data)
1109 ERR("Failed to get icon list.\n");
1113 /* FIXME: For now, just load the first frame. Before we can load all the
1114 * frames, we need to write the needed code in wineserver, etc. to handle
1115 * cursors. Once this code is written, we can extend it to support .ani
1116 * cursors and then update user32 and winex11.drv to load all frames.
1118 * Hopefully this will at least make some games (C&C3, etc.) more playable
1121 FIXME("Loading all frames for .ani cursors not implemented.\n");
1122 icon_data = fram_chunk.data + (2 * sizeof(DWORD));
1124 entry = CURSORICON_FindBestIconFile( (CURSORICONFILEDIR *) icon_data,
1125 width, height, depth );
1127 frame_bits = HeapAlloc( GetProcessHeap(), 0, entry->dwDIBSize );
1128 memcpy( frame_bits, icon_data + entry->dwDIBOffset, entry->dwDIBSize );
1130 if (!header.width || !header.height)
1132 header.width = entry->bWidth;
1133 header.height = entry->bHeight;
1136 hotspot.x = entry->xHotspot;
1137 hotspot.y = entry->yHotspot;
1139 cursor = CURSORICON_CreateIconFromBMI( (BITMAPINFO *) frame_bits, hotspot,
1140 FALSE, 0x00030000, header.width, header.height, 0 );
1142 HeapFree( GetProcessHeap(), 0, frame_bits );
1148 /**********************************************************************
1149 * CreateIconFromResourceEx (USER32.@)
1151 * FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
1152 * with cbSize parameter as well.
1154 HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
1155 BOOL bIcon, DWORD dwVersion,
1156 INT width, INT height,
1162 hotspot.x = ICON_HOTSPOT;
1163 hotspot.y = ICON_HOTSPOT;
1165 TRACE_(cursor)("%p (%u bytes), ver %08x, %ix%i %s %s\n",
1166 bits, cbSize, dwVersion, width, height,
1167 bIcon ? "icon" : "cursor", (cFlag & LR_MONOCHROME) ? "mono" : "" );
1170 bmi = (BITMAPINFO *)bits;
1171 else /* get the hotspot */
1173 POINT16 *pt = (POINT16 *)bits;
1175 bmi = (BITMAPINFO *)(pt + 1);
1178 return CURSORICON_CreateIconFromBMI( bmi, hotspot, bIcon, dwVersion,
1179 width, height, cFlag );
1183 /**********************************************************************
1184 * CreateIconFromResource (USER32.@)
1186 HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize,
1187 BOOL bIcon, DWORD dwVersion)
1189 return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
1193 static HICON CURSORICON_LoadFromFile( LPCWSTR filename,
1194 INT width, INT height, INT depth,
1195 BOOL fCursor, UINT loadflags)
1197 CURSORICONFILEDIRENTRY *entry;
1198 CURSORICONFILEDIR *dir;
1204 TRACE("loading %s\n", debugstr_w( filename ));
1206 bits = map_fileW( filename, &filesize );
1210 /* Check for .ani. */
1211 if (memcmp( bits, "RIFF", 4 ) == 0)
1213 hIcon = CURSORICON_CreateIconFromANI( bits, filesize, width, height,
1218 dir = (CURSORICONFILEDIR*) bits;
1219 if ( filesize < sizeof(*dir) )
1222 if ( filesize < (sizeof(*dir) + sizeof(dir->idEntries[0])*(dir->idCount-1)) )
1226 entry = CURSORICON_FindBestCursorFile( dir, width, height, depth );
1228 entry = CURSORICON_FindBestIconFile( dir, width, height, depth );
1233 /* check that we don't run off the end of the file */
1234 if ( entry->dwDIBOffset > filesize )
1236 if ( entry->dwDIBOffset + entry->dwDIBSize > filesize )
1239 /* Set the actual hotspot for cursors and ICON_HOTSPOT for icons. */
1242 hotspot.x = entry->xHotspot;
1243 hotspot.y = entry->yHotspot;
1247 hotspot.x = ICON_HOTSPOT;
1248 hotspot.y = ICON_HOTSPOT;
1250 hIcon = CURSORICON_CreateIconFromBMI( (BITMAPINFO *)&bits[entry->dwDIBOffset],
1251 hotspot, !fCursor, 0x00030000,
1252 width, height, loadflags );
1254 TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon );
1255 UnmapViewOfFile( bits );
1259 /**********************************************************************
1262 * Load a cursor or icon from resource or file.
1264 static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
1265 INT width, INT height, INT depth,
1266 BOOL fCursor, UINT loadflags)
1270 HRSRC hRsrc, hGroupRsrc;
1272 CURSORICONDIRENTRY *dirEntry;
1277 TRACE("%p, %s, %dx%d, depth %d, fCursor %d, flags 0x%04x\n",
1278 hInstance, debugstr_w(name), width, height, depth, fCursor, loadflags);
1280 if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
1281 return CURSORICON_LoadFromFile( name, width, height, depth, fCursor, loadflags );
1283 if (!hInstance) hInstance = user32_module; /* Load OEM cursor/icon */
1285 /* don't cache 16-bit instances (FIXME: should never get 16-bit instances in the first place) */
1286 if ((ULONG_PTR)hInstance >> 16 == 0) loadflags &= ~LR_SHARED;
1288 /* Get directory resource ID */
1290 if (!(hRsrc = FindResourceW( hInstance, name,
1291 (LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
1295 /* Find the best entry in the directory */
1297 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1298 if (!(dir = LockResource( handle ))) return 0;
1300 dirEntry = CURSORICON_FindBestCursorRes( dir, width, height, depth );
1302 dirEntry = CURSORICON_FindBestIconRes( dir, width, height, depth );
1303 if (!dirEntry) return 0;
1304 wResId = dirEntry->wResId;
1305 dwBytesInRes = dirEntry->dwBytesInRes;
1306 FreeResource( handle );
1308 /* Load the resource */
1310 if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
1311 (LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0;
1313 /* If shared icon, check whether it was already loaded */
1314 if ( (loadflags & LR_SHARED)
1315 && (hIcon = CURSORICON_FindSharedIcon( hInstance, hRsrc ) ) != 0 )
1318 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
1319 bits = LockResource( handle );
1320 hIcon = CreateIconFromResourceEx( bits, dwBytesInRes,
1321 !fCursor, 0x00030000, width, height, loadflags);
1322 FreeResource( handle );
1324 /* If shared icon, add to icon cache */
1326 if ( hIcon && (loadflags & LR_SHARED) )
1327 CURSORICON_AddSharedIcon( hInstance, hRsrc, hGroupRsrc, hIcon );
1333 /*************************************************************************
1334 * CURSORICON_ExtCopy
1336 * Copies an Image from the Cache if LR_COPYFROMRESOURCE is specified
1339 * Handle [I] handle to an Image
1340 * nType [I] Type of Handle (IMAGE_CURSOR | IMAGE_ICON)
1341 * iDesiredCX [I] The Desired width of the Image
1342 * iDesiredCY [I] The desired height of the Image
1343 * nFlags [I] The flags from CopyImage
1346 * Success: The new handle of the Image
1349 * LR_COPYDELETEORG and LR_MONOCHROME are currently not implemented.
1350 * LR_MONOCHROME should be implemented by CreateIconFromResourceEx.
1351 * LR_COPYFROMRESOURCE will only work if the Image is in the Cache.
1356 static HICON CURSORICON_ExtCopy(HICON hIcon, UINT nType,
1357 INT iDesiredCX, INT iDesiredCY,
1362 TRACE_(icon)("hIcon %p, nType %u, iDesiredCX %i, iDesiredCY %i, nFlags %u\n",
1363 hIcon, nType, iDesiredCX, iDesiredCY, nFlags);
1370 /* Best Fit or Monochrome */
1371 if( (nFlags & LR_COPYFROMRESOURCE
1372 && (iDesiredCX > 0 || iDesiredCY > 0))
1373 || nFlags & LR_MONOCHROME)
1375 ICONCACHE* pIconCache = CURSORICON_FindCache(hIcon);
1377 /* Not Found in Cache, then do a straight copy
1379 if(pIconCache == NULL)
1381 hNew = CopyIcon( hIcon );
1382 if(nFlags & LR_COPYFROMRESOURCE)
1384 TRACE_(icon)("LR_COPYFROMRESOURCE: Failed to load from cache\n");
1389 int iTargetCY = iDesiredCY, iTargetCX = iDesiredCX;
1395 CURSORICONDIR *pDir;
1396 CURSORICONDIRENTRY *pDirEntry;
1397 BOOL bIsIcon = (nType == IMAGE_ICON);
1399 /* Completing iDesiredCX CY for Monochrome Bitmaps if needed
1401 if(((nFlags & LR_MONOCHROME) && !(nFlags & LR_COPYFROMRESOURCE))
1402 || (iDesiredCX == 0 && iDesiredCY == 0))
1404 iDesiredCY = GetSystemMetrics(bIsIcon ?
1405 SM_CYICON : SM_CYCURSOR);
1406 iDesiredCX = GetSystemMetrics(bIsIcon ?
1407 SM_CXICON : SM_CXCURSOR);
1410 /* Retrieve the CURSORICONDIRENTRY
1412 if (!(hMem = LoadResource( pIconCache->hModule ,
1413 pIconCache->hGroupRsrc)))
1417 if (!(pDir = LockResource( hMem )))
1426 pDirEntry = CURSORICON_FindBestIconRes(
1427 pDir, iDesiredCX, iDesiredCY, 256 );
1431 pDirEntry = CURSORICON_FindBestCursorRes(
1432 pDir, iDesiredCX, iDesiredCY, 1);
1435 wResId = pDirEntry->wResId;
1436 dwBytesInRes = pDirEntry->dwBytesInRes;
1439 TRACE_(icon)("ResID %u, BytesInRes %u, Width %d, Height %d DX %d, DY %d\n",
1440 wResId, dwBytesInRes, pDirEntry->ResInfo.icon.bWidth,
1441 pDirEntry->ResInfo.icon.bHeight, iDesiredCX, iDesiredCY);
1445 if (!(hRsrc = FindResourceW(pIconCache->hModule ,
1446 MAKEINTRESOURCEW(wResId), (LPWSTR)(bIsIcon ? RT_ICON : RT_CURSOR))))
1450 if (!(hMem = LoadResource( pIconCache->hModule , hRsrc )))
1455 pBits = LockResource( hMem );
1457 if(nFlags & LR_DEFAULTSIZE)
1459 iTargetCY = GetSystemMetrics(SM_CYICON);
1460 iTargetCX = GetSystemMetrics(SM_CXICON);
1463 /* Create a New Icon with the proper dimension
1465 hNew = CreateIconFromResourceEx( pBits, dwBytesInRes,
1466 bIsIcon, 0x00030000, iTargetCX, iTargetCY, nFlags);
1470 else hNew = CopyIcon( hIcon );
1475 /***********************************************************************
1476 * CreateCursor (USER32.@)
1478 HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
1479 INT xHotSpot, INT yHotSpot,
1480 INT nWidth, INT nHeight,
1481 LPCVOID lpANDbits, LPCVOID lpXORbits )
1486 TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
1487 nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
1490 info.xHotspot = xHotSpot;
1491 info.yHotspot = yHotSpot;
1492 info.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1493 info.hbmColor = CreateBitmap( nWidth, nHeight, 1, 1, lpXORbits );
1494 hCursor = CreateIconIndirect( &info );
1495 DeleteObject( info.hbmMask );
1496 DeleteObject( info.hbmColor );
1501 /***********************************************************************
1502 * CreateIcon (USER32.@)
1504 * Creates an icon based on the specified bitmaps. The bitmaps must be
1505 * provided in a device dependent format and will be resized to
1506 * (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
1507 * depth. The provided bitmaps must be top-down bitmaps.
1508 * Although Windows does not support 15bpp(*) this API must support it
1509 * for Winelib applications.
1511 * (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
1515 * Success: handle to an icon
1518 * FIXME: Do we need to resize the bitmaps?
1520 HICON WINAPI CreateIcon(
1521 HINSTANCE hInstance, /* [in] the application's hInstance */
1522 INT nWidth, /* [in] the width of the provided bitmaps */
1523 INT nHeight, /* [in] the height of the provided bitmaps */
1524 BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
1525 BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
1526 LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
1527 LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
1532 TRACE_(icon)("%dx%d, planes %d, bpp %d, xor %p, and %p\n",
1533 nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits, lpANDbits);
1536 iinfo.xHotspot = ICON_HOTSPOT;
1537 iinfo.yHotspot = ICON_HOTSPOT;
1538 iinfo.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1539 iinfo.hbmColor = CreateBitmap( nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits );
1541 hIcon = CreateIconIndirect( &iinfo );
1543 DeleteObject( iinfo.hbmMask );
1544 DeleteObject( iinfo.hbmColor );
1550 /***********************************************************************
1551 * CopyIcon (USER32.@)
1553 HICON WINAPI CopyIcon( HICON hIcon )
1555 CURSORICONINFO *ptrOld, *ptrNew;
1559 if (!(ptrOld = get_icon_ptr( hIcon ))) return 0;
1560 size = sizeof(CURSORICONINFO);
1561 size += ptrOld->nHeight * get_bitmap_width_bytes( ptrOld->nWidth, 1 ); /* and bitmap */
1562 size += ptrOld->nHeight * ptrOld->nWidthBytes; /* xor bitmap */
1563 hNew = alloc_icon_handle( size );
1564 ptrNew = get_icon_ptr( hNew );
1565 memcpy( ptrNew, ptrOld, size );
1566 release_icon_ptr( hIcon, ptrOld );
1567 release_icon_ptr( hNew, ptrNew );
1572 /***********************************************************************
1573 * DestroyIcon (USER32.@)
1575 BOOL WINAPI DestroyIcon( HICON hIcon )
1577 TRACE_(icon)("%p\n", hIcon );
1579 if (CURSORICON_DelSharedIcon( hIcon ) == -1)
1580 free_icon_handle( hIcon );
1585 /***********************************************************************
1586 * DestroyCursor (USER32.@)
1588 BOOL WINAPI DestroyCursor( HCURSOR hCursor )
1590 if (get_user_thread_info()->cursor == hCursor)
1592 WARN_(cursor)("Destroying active cursor!\n" );
1595 return DestroyIcon( hCursor );
1598 /***********************************************************************
1599 * bitmap_has_alpha_channel
1601 * Analyses bits bitmap to determine if alpha data is present.
1604 * bpp [I] The bits-per-pixel of the bitmap
1605 * bitmapBits [I] A pointer to the bitmap data
1606 * bitmapLength [I] The length of the bitmap in bytes
1609 * TRUE if an alpha channel is discovered, FALSE
1612 * Windows' behaviour is that if the icon bitmap is 32-bit and at
1613 * least one pixel has a non-zero alpha, then the bitmap is a
1614 * treated as having an alpha channel transparentcy. Otherwise,
1615 * it's treated as being completely opaque.
1618 static BOOL bitmap_has_alpha_channel( int bpp, unsigned char *bitmapBits,
1619 unsigned int bitmapLength )
1621 /* Detect an alpha channel by looking for non-zero alpha pixels */
1624 unsigned int offset;
1625 for(offset = 3; offset < bitmapLength; offset += 4)
1627 if(bitmapBits[offset] != 0)
1636 /***********************************************************************
1637 * premultiply_alpha_channel
1639 * Premultiplies the color channels of a 32-bit bitmap by the alpha
1640 * channel. This is a necessary step that must be carried out on
1641 * the image before it is passed to GdiAlphaBlend
1644 * destBitmap [I] The destination bitmap buffer
1645 * srcBitmap [I] The source bitmap buffer
1646 * bitmapLength [I] The length of the bitmap in bytes
1649 static void premultiply_alpha_channel( unsigned char *destBitmap,
1650 unsigned char *srcBitmap,
1651 unsigned int bitmapLength )
1653 unsigned char *destPixel = destBitmap;
1654 unsigned char *srcPixel = srcBitmap;
1656 while(destPixel < destBitmap + bitmapLength)
1658 unsigned char alpha = srcPixel[3];
1659 *(destPixel++) = *(srcPixel++) * alpha / 255;
1660 *(destPixel++) = *(srcPixel++) * alpha / 255;
1661 *(destPixel++) = *(srcPixel++) * alpha / 255;
1662 *(destPixel++) = *(srcPixel++);
1666 /***********************************************************************
1667 * DrawIcon (USER32.@)
1669 BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
1671 CURSORICONINFO *ptr;
1673 HBITMAP hXorBits = NULL, hAndBits = NULL, hBitTemp = NULL;
1674 COLORREF oldFg, oldBg;
1675 unsigned char *xorBitmapBits;
1676 unsigned int dibLength;
1678 TRACE("%p, (%d,%d), %p\n", hdc, x, y, hIcon);
1680 if (!(ptr = get_icon_ptr( hIcon ))) return FALSE;
1681 if (!(hMemDC = CreateCompatibleDC( hdc )))
1683 release_icon_ptr( hIcon, ptr );
1687 dibLength = ptr->nHeight * get_bitmap_width_bytes(
1688 ptr->nWidth, ptr->bBitsPerPixel);
1690 xorBitmapBits = (unsigned char *)(ptr + 1) + ptr->nHeight *
1691 get_bitmap_width_bytes(ptr->nWidth, 1);
1693 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1694 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1696 if(bitmap_has_alpha_channel(ptr->bBitsPerPixel, xorBitmapBits, dibLength))
1698 BITMAPINFOHEADER bmih;
1699 unsigned char *dibBits;
1701 memset(&bmih, 0, sizeof(BITMAPINFOHEADER));
1702 bmih.biSize = sizeof(BITMAPINFOHEADER);
1703 bmih.biWidth = ptr->nWidth;
1704 bmih.biHeight = -ptr->nHeight;
1705 bmih.biPlanes = ptr->bPlanes;
1706 bmih.biBitCount = 32;
1707 bmih.biCompression = BI_RGB;
1709 hXorBits = CreateDIBSection(hdc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS,
1710 (void*)&dibBits, NULL, 0);
1712 if (hXorBits && dibBits)
1714 BLENDFUNCTION pixelblend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
1716 /* Do the alpha blending render */
1717 premultiply_alpha_channel(dibBits, xorBitmapBits, dibLength);
1718 hBitTemp = SelectObject( hMemDC, hXorBits );
1719 /* Destination width/height has to be "System Large" size */
1720 GdiAlphaBlend(hdc, x, y, GetSystemMetrics(SM_CXICON),
1721 GetSystemMetrics(SM_CYICON), hMemDC,
1722 0, 0, ptr->nWidth, ptr->nHeight, pixelblend);
1723 SelectObject( hMemDC, hBitTemp );
1728 hAndBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1, ptr + 1 );
1729 hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, ptr->bPlanes,
1730 ptr->bBitsPerPixel, xorBitmapBits);
1732 if (hXorBits && hAndBits)
1734 hBitTemp = SelectObject( hMemDC, hAndBits );
1735 StretchBlt( hdc, x, y, GetSystemMetrics(SM_CXICON),
1736 GetSystemMetrics(SM_CYICON), hMemDC, 0, 0,
1737 ptr->nWidth, ptr->nHeight, SRCAND );
1738 SelectObject( hMemDC, hXorBits );
1739 StretchBlt( hdc, x, y, GetSystemMetrics(SM_CXICON),
1740 GetSystemMetrics(SM_CYICON), hMemDC, 0, 0,
1741 ptr->nWidth, ptr->nHeight, SRCINVERT );
1742 SelectObject( hMemDC, hBitTemp );
1747 if (hXorBits) DeleteObject( hXorBits );
1748 if (hAndBits) DeleteObject( hAndBits );
1749 release_icon_ptr( hIcon, ptr );
1750 SetTextColor( hdc, oldFg );
1751 SetBkColor( hdc, oldBg );
1755 /***********************************************************************
1756 * SetCursor (USER32.@)
1758 * Set the cursor shape.
1761 * A handle to the previous cursor shape.
1763 HCURSOR WINAPI DECLSPEC_HOTPATCH SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
1765 struct user_thread_info *thread_info = get_user_thread_info();
1768 if (hCursor == thread_info->cursor) return hCursor; /* No change */
1769 TRACE("%p\n", hCursor);
1770 hOldCursor = thread_info->cursor;
1771 thread_info->cursor = hCursor;
1772 /* Change the cursor shape only if it is visible */
1773 if (thread_info->cursor_count >= 0)
1775 CURSORICONINFO *info = get_icon_ptr( hCursor );
1776 /* release before calling driver (FIXME) */
1777 if (info) release_icon_ptr( hCursor, info );
1778 USER_Driver->pSetCursor( info );
1783 /***********************************************************************
1784 * ShowCursor (USER32.@)
1786 INT WINAPI DECLSPEC_HOTPATCH ShowCursor( BOOL bShow )
1788 struct user_thread_info *thread_info = get_user_thread_info();
1790 TRACE("%d, count=%d\n", bShow, thread_info->cursor_count );
1794 if (++thread_info->cursor_count == 0) /* Show it */
1796 CURSORICONINFO *info = get_icon_ptr( thread_info->cursor );
1797 /* release before calling driver (FIXME) */
1798 if (info) release_icon_ptr( thread_info->cursor, info );
1799 USER_Driver->pSetCursor( info );
1804 if (--thread_info->cursor_count == -1) /* Hide it */
1805 USER_Driver->pSetCursor( NULL );
1807 return thread_info->cursor_count;
1810 /***********************************************************************
1811 * GetCursor (USER32.@)
1813 HCURSOR WINAPI GetCursor(void)
1815 return get_user_thread_info()->cursor;
1819 /***********************************************************************
1820 * ClipCursor (USER32.@)
1822 BOOL WINAPI DECLSPEC_HOTPATCH ClipCursor( const RECT *rect )
1826 SetRect( &virt, 0, 0, GetSystemMetrics( SM_CXVIRTUALSCREEN ),
1827 GetSystemMetrics( SM_CYVIRTUALSCREEN ) );
1828 OffsetRect( &virt, GetSystemMetrics( SM_XVIRTUALSCREEN ),
1829 GetSystemMetrics( SM_YVIRTUALSCREEN ) );
1831 TRACE( "Clipping to: %s was: %s screen: %s\n", wine_dbgstr_rect(rect),
1832 wine_dbgstr_rect(&CURSOR_ClipRect), wine_dbgstr_rect(&virt) );
1834 if (!IntersectRect( &CURSOR_ClipRect, &virt, rect ))
1835 CURSOR_ClipRect = virt;
1837 USER_Driver->pClipCursor( rect );
1842 /***********************************************************************
1843 * GetClipCursor (USER32.@)
1845 BOOL WINAPI DECLSPEC_HOTPATCH GetClipCursor( RECT *rect )
1847 /* If this is first time - initialize the rect */
1848 if (IsRectEmpty( &CURSOR_ClipRect )) ClipCursor( NULL );
1850 return CopyRect( rect, &CURSOR_ClipRect );
1854 /***********************************************************************
1855 * SetSystemCursor (USER32.@)
1857 BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id)
1859 FIXME("(%p,%08x),stub!\n", hcur, id);
1864 /**********************************************************************
1865 * LookupIconIdFromDirectoryEx (USER32.@)
1867 INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
1868 INT width, INT height, UINT cFlag )
1870 CURSORICONDIR *dir = (CURSORICONDIR*)xdir;
1872 if( dir && !dir->idReserved && (dir->idType & 3) )
1874 CURSORICONDIRENTRY* entry;
1876 const HDC hdc = GetDC(0);
1877 const int depth = (cFlag & LR_MONOCHROME) ?
1878 1 : GetDeviceCaps(hdc, BITSPIXEL);
1882 entry = CURSORICON_FindBestIconRes( dir, width, height, depth );
1884 entry = CURSORICON_FindBestCursorRes( dir, width, height, depth );
1886 if( entry ) retVal = entry->wResId;
1888 else WARN_(cursor)("invalid resource directory\n");
1892 /**********************************************************************
1893 * LookupIconIdFromDirectory (USER32.@)
1895 INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
1897 return LookupIconIdFromDirectoryEx( dir, bIcon,
1898 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1899 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1902 /***********************************************************************
1903 * LoadCursorW (USER32.@)
1905 HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
1907 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1909 return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
1910 LR_SHARED | LR_DEFAULTSIZE );
1913 /***********************************************************************
1914 * LoadCursorA (USER32.@)
1916 HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
1918 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1920 return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
1921 LR_SHARED | LR_DEFAULTSIZE );
1924 /***********************************************************************
1925 * LoadCursorFromFileW (USER32.@)
1927 HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
1929 TRACE("%s\n", debugstr_w(name));
1931 return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
1932 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1935 /***********************************************************************
1936 * LoadCursorFromFileA (USER32.@)
1938 HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
1940 TRACE("%s\n", debugstr_a(name));
1942 return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
1943 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1946 /***********************************************************************
1947 * LoadIconW (USER32.@)
1949 HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
1951 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1953 return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
1954 LR_SHARED | LR_DEFAULTSIZE );
1957 /***********************************************************************
1958 * LoadIconA (USER32.@)
1960 HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
1962 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1964 return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
1965 LR_SHARED | LR_DEFAULTSIZE );
1968 /**********************************************************************
1969 * GetIconInfo (USER32.@)
1971 BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
1973 CURSORICONINFO *ciconinfo;
1976 if (!(ciconinfo = get_icon_ptr( hIcon ))) return FALSE;
1978 TRACE("%p => %dx%d, %d bpp\n", hIcon,
1979 ciconinfo->nWidth, ciconinfo->nHeight, ciconinfo->bBitsPerPixel);
1981 if ( (ciconinfo->ptHotSpot.x == ICON_HOTSPOT) &&
1982 (ciconinfo->ptHotSpot.y == ICON_HOTSPOT) )
1984 iconinfo->fIcon = TRUE;
1985 iconinfo->xHotspot = ciconinfo->nWidth / 2;
1986 iconinfo->yHotspot = ciconinfo->nHeight / 2;
1990 iconinfo->fIcon = FALSE;
1991 iconinfo->xHotspot = ciconinfo->ptHotSpot.x;
1992 iconinfo->yHotspot = ciconinfo->ptHotSpot.y;
1995 height = ciconinfo->nHeight;
1997 if (ciconinfo->bBitsPerPixel > 1)
1999 iconinfo->hbmColor = CreateBitmap( ciconinfo->nWidth, ciconinfo->nHeight,
2000 ciconinfo->bPlanes, ciconinfo->bBitsPerPixel,
2001 (char *)(ciconinfo + 1)
2002 + ciconinfo->nHeight *
2003 get_bitmap_width_bytes (ciconinfo->nWidth,1) );
2007 iconinfo->hbmColor = 0;
2011 iconinfo->hbmMask = CreateBitmap ( ciconinfo->nWidth, height,
2012 1, 1, ciconinfo + 1);
2013 release_icon_ptr( hIcon, ciconinfo );
2018 /**********************************************************************
2019 * CreateIconIndirect (USER32.@)
2021 HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
2026 int xor_objsize = 0, sizeXor = 0, sizeAnd, planes, bpp;
2028 TRACE("color %p, mask %p, hotspot %ux%u, fIcon %d\n",
2029 iconinfo->hbmColor, iconinfo->hbmMask,
2030 iconinfo->xHotspot, iconinfo->yHotspot, iconinfo->fIcon);
2032 if (!iconinfo->hbmMask) return 0;
2034 planes = GetDeviceCaps( screen_dc, PLANES );
2035 bpp = GetDeviceCaps( screen_dc, BITSPIXEL );
2037 if (iconinfo->hbmColor)
2039 xor_objsize = GetObjectW( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
2040 TRACE("color: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2041 bmpXor.dsBm.bmWidth, bmpXor.dsBm.bmHeight, bmpXor.dsBm.bmWidthBytes,
2042 bmpXor.dsBm.bmPlanes, bmpXor.dsBm.bmBitsPixel);
2043 /* we can use either depth 1 or screen depth for xor bitmap */
2044 if (bmpXor.dsBm.bmPlanes == 1 && bmpXor.dsBm.bmBitsPixel == 1) planes = bpp = 1;
2045 sizeXor = bmpXor.dsBm.bmHeight * planes * get_bitmap_width_bytes( bmpXor.dsBm.bmWidth, bpp );
2047 GetObjectW( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
2048 TRACE("mask: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
2049 bmpAnd.bmWidth, bmpAnd.bmHeight, bmpAnd.bmWidthBytes,
2050 bmpAnd.bmPlanes, bmpAnd.bmBitsPixel);
2052 sizeAnd = bmpAnd.bmHeight * get_bitmap_width_bytes(bmpAnd.bmWidth, 1);
2054 hObj = alloc_icon_handle( sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
2057 CURSORICONINFO *info = get_icon_ptr( hObj );
2059 /* If we are creating an icon, the hotspot is unused */
2060 if (iconinfo->fIcon)
2062 info->ptHotSpot.x = ICON_HOTSPOT;
2063 info->ptHotSpot.y = ICON_HOTSPOT;
2067 info->ptHotSpot.x = iconinfo->xHotspot;
2068 info->ptHotSpot.y = iconinfo->yHotspot;
2071 if (iconinfo->hbmColor)
2073 info->nWidth = bmpXor.dsBm.bmWidth;
2074 info->nHeight = bmpXor.dsBm.bmHeight;
2075 info->nWidthBytes = bmpXor.dsBm.bmWidthBytes;
2076 info->bPlanes = planes;
2077 info->bBitsPerPixel = bpp;
2081 info->nWidth = bmpAnd.bmWidth;
2082 info->nHeight = bmpAnd.bmHeight / 2;
2083 info->nWidthBytes = get_bitmap_width_bytes(bmpAnd.bmWidth, 1);
2085 info->bBitsPerPixel = 1;
2088 /* Transfer the bitmap bits to the CURSORICONINFO structure */
2090 /* Some apps pass a color bitmap as a mask, convert it to b/w */
2091 if (bmpAnd.bmBitsPixel == 1)
2093 GetBitmapBits( iconinfo->hbmMask, sizeAnd, info + 1 );
2097 HDC hdc_mem, hdc_mem2;
2098 HBITMAP hbmp_mem_old, hbmp_mem2_old, hbmp_mono;
2100 hdc_mem = CreateCompatibleDC( 0 );
2101 hdc_mem2 = CreateCompatibleDC( 0 );
2103 hbmp_mono = CreateBitmap( bmpAnd.bmWidth, bmpAnd.bmHeight, 1, 1, NULL );
2105 hbmp_mem_old = SelectObject( hdc_mem, iconinfo->hbmMask );
2106 hbmp_mem2_old = SelectObject( hdc_mem2, hbmp_mono );
2108 BitBlt( hdc_mem2, 0, 0, bmpAnd.bmWidth, bmpAnd.bmHeight, hdc_mem, 0, 0, SRCCOPY );
2110 SelectObject( hdc_mem, hbmp_mem_old );
2111 SelectObject( hdc_mem2, hbmp_mem2_old );
2113 DeleteDC( hdc_mem );
2114 DeleteDC( hdc_mem2 );
2116 GetBitmapBits( hbmp_mono, sizeAnd, info + 1 );
2117 DeleteObject( hbmp_mono );
2120 if (iconinfo->hbmColor)
2122 char *dst_bits = (char*)(info + 1) + sizeAnd;
2124 if (bmpXor.dsBm.bmPlanes == planes && bmpXor.dsBm.bmBitsPixel == bpp)
2125 GetBitmapBits( iconinfo->hbmColor, sizeXor, dst_bits );
2129 int dib_width = get_dib_width_bytes( info->nWidth, info->bBitsPerPixel );
2130 int bitmap_width = get_bitmap_width_bytes( info->nWidth, info->bBitsPerPixel );
2132 bminfo.bmiHeader.biSize = sizeof(bminfo);
2133 bminfo.bmiHeader.biWidth = info->nWidth;
2134 bminfo.bmiHeader.biHeight = info->nHeight;
2135 bminfo.bmiHeader.biPlanes = info->bPlanes;
2136 bminfo.bmiHeader.biBitCount = info->bBitsPerPixel;
2137 bminfo.bmiHeader.biCompression = BI_RGB;
2138 bminfo.bmiHeader.biSizeImage = info->nHeight * dib_width;
2139 bminfo.bmiHeader.biXPelsPerMeter = 0;
2140 bminfo.bmiHeader.biYPelsPerMeter = 0;
2141 bminfo.bmiHeader.biClrUsed = 0;
2142 bminfo.bmiHeader.biClrImportant = 0;
2144 /* swap lines for dib sections */
2145 if (xor_objsize == sizeof(DIBSECTION))
2146 bminfo.bmiHeader.biHeight = -bminfo.bmiHeader.biHeight;
2148 if (dib_width != bitmap_width) /* need to fixup alignment */
2150 char *src_bits = HeapAlloc( GetProcessHeap(), 0, bminfo.bmiHeader.biSizeImage );
2152 if (src_bits && GetDIBits( screen_dc, iconinfo->hbmColor, 0, info->nHeight,
2153 src_bits, &bminfo, DIB_RGB_COLORS ))
2156 for (y = 0; y < info->nHeight; y++)
2157 memcpy( dst_bits + y * bitmap_width, src_bits + y * dib_width, bitmap_width );
2159 HeapFree( GetProcessHeap(), 0, src_bits );
2162 GetDIBits( screen_dc, iconinfo->hbmColor, 0, info->nHeight,
2163 dst_bits, &bminfo, DIB_RGB_COLORS );
2166 release_icon_ptr( hObj, info );
2171 /******************************************************************************
2172 * DrawIconEx (USER32.@) Draws an icon or cursor on device context
2175 * Why is this using SM_CXICON instead of SM_CXCURSOR?
2178 * hdc [I] Handle to device context
2179 * x0 [I] X coordinate of upper left corner
2180 * y0 [I] Y coordinate of upper left corner
2181 * hIcon [I] Handle to icon to draw
2182 * cxWidth [I] Width of icon
2183 * cyWidth [I] Height of icon
2184 * istep [I] Index of frame in animated cursor
2185 * hbr [I] Handle to background brush
2186 * flags [I] Icon-drawing flags
2192 BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
2193 INT cxWidth, INT cyWidth, UINT istep,
2194 HBRUSH hbr, UINT flags )
2196 CURSORICONINFO *ptr;
2197 HDC hDC_off = 0, hMemDC;
2198 BOOL result = FALSE, DoOffscreen;
2199 HBITMAP hB_off = 0, hOld = 0;
2200 unsigned char *xorBitmapBits;
2201 unsigned int xorLength;
2202 BOOL has_alpha = FALSE;
2204 TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
2205 hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
2207 if (!(ptr = get_icon_ptr( hIcon ))) return FALSE;
2208 if (!(hMemDC = CreateCompatibleDC( hdc )))
2210 release_icon_ptr( hIcon, ptr );
2215 FIXME_(icon)("Ignoring istep=%d\n", istep);
2216 if (flags & DI_NOMIRROR)
2217 FIXME_(icon)("Ignoring flag DI_NOMIRROR\n");
2219 xorLength = ptr->nHeight * get_bitmap_width_bytes(
2220 ptr->nWidth, ptr->bBitsPerPixel);
2221 xorBitmapBits = (unsigned char *)(ptr + 1) + ptr->nHeight *
2222 get_bitmap_width_bytes(ptr->nWidth, 1);
2224 if (flags & DI_IMAGE)
2225 has_alpha = bitmap_has_alpha_channel(
2226 ptr->bBitsPerPixel, xorBitmapBits, xorLength);
2228 /* Calculate the size of the destination image. */
2231 if (flags & DI_DEFAULTSIZE)
2232 cxWidth = GetSystemMetrics (SM_CXICON);
2234 cxWidth = ptr->nWidth;
2238 if (flags & DI_DEFAULTSIZE)
2239 cyWidth = GetSystemMetrics (SM_CYICON);
2241 cyWidth = ptr->nHeight;
2244 DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
2254 hDC_off = CreateCompatibleDC(hdc);
2255 hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth);
2256 if (hDC_off && hB_off) {
2257 hOld = SelectObject(hDC_off, hB_off);
2258 FillRect(hDC_off, &r, hbr);
2262 if (hMemDC && (!DoOffscreen || (hDC_off && hB_off)))
2265 HBITMAP hXorBits = NULL, hAndBits = NULL;
2266 COLORREF oldFg, oldBg;
2269 nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
2271 oldFg = SetTextColor( hdc, RGB(0,0,0) );
2272 oldBg = SetBkColor( hdc, RGB(255,255,255) );
2274 if (((flags & DI_MASK) && !(flags & DI_IMAGE)) ||
2275 ((flags & DI_MASK) && !has_alpha))
2277 hAndBits = CreateBitmap ( ptr->nWidth, ptr->nHeight, 1, 1, ptr + 1 );
2280 hBitTemp = SelectObject( hMemDC, hAndBits );
2282 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
2283 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
2285 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
2286 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
2287 SelectObject( hMemDC, hBitTemp );
2291 if (flags & DI_IMAGE)
2293 BITMAPINFOHEADER bmih;
2294 unsigned char *dibBits;
2296 memset(&bmih, 0, sizeof(BITMAPINFOHEADER));
2297 bmih.biSize = sizeof(BITMAPINFOHEADER);
2298 bmih.biWidth = ptr->nWidth;
2299 bmih.biHeight = -ptr->nHeight;
2300 bmih.biPlanes = ptr->bPlanes;
2301 bmih.biBitCount = ptr->bBitsPerPixel;
2302 bmih.biCompression = BI_RGB;
2304 hXorBits = CreateDIBSection(hdc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS,
2305 (void*)&dibBits, NULL, 0);
2307 if (hXorBits && dibBits)
2311 BLENDFUNCTION pixelblend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
2313 /* Do the alpha blending render */
2314 premultiply_alpha_channel(dibBits, xorBitmapBits, xorLength);
2315 hBitTemp = SelectObject( hMemDC, hXorBits );
2318 GdiAlphaBlend(hDC_off, 0, 0, cxWidth, cyWidth, hMemDC,
2319 0, 0, ptr->nWidth, ptr->nHeight, pixelblend);
2321 GdiAlphaBlend(hdc, x0, y0, cxWidth, cyWidth, hMemDC,
2322 0, 0, ptr->nWidth, ptr->nHeight, pixelblend);
2324 SelectObject( hMemDC, hBitTemp );
2328 memcpy(dibBits, xorBitmapBits, xorLength);
2329 hBitTemp = SelectObject( hMemDC, hXorBits );
2331 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
2332 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
2334 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
2335 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
2336 SelectObject( hMemDC, hBitTemp );
2339 DeleteObject( hXorBits );
2345 SetTextColor( hdc, oldFg );
2346 SetBkColor( hdc, oldBg );
2348 if (hAndBits) DeleteObject( hAndBits );
2349 SetStretchBltMode (hdc, nStretchMode);
2351 BitBlt(hdc, x0, y0, cxWidth, cyWidth, hDC_off, 0, 0, SRCCOPY);
2352 SelectObject(hDC_off, hOld);
2355 if (hMemDC) DeleteDC( hMemDC );
2356 if (hDC_off) DeleteDC(hDC_off);
2357 if (hB_off) DeleteObject(hB_off);
2358 release_icon_ptr( hIcon, ptr );
2362 /***********************************************************************
2363 * DIB_FixColorsToLoadflags
2365 * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
2368 static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
2371 COLORREF c_W, c_S, c_F, c_L, c_C;
2380 if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
2382 WARN_(resource)("Invalid bitmap\n");
2386 if (bpp > 8) return;
2388 if (bitmap_type == 0) /* BITMAPCOREHEADER */
2396 colors = bmi->bmiHeader.biClrUsed;
2397 if (colors > 256) colors = 256;
2398 if (!colors && (bpp <= 8)) colors = 1 << bpp;
2401 c_W = GetSysColor(COLOR_WINDOW);
2402 c_S = GetSysColor(COLOR_3DSHADOW);
2403 c_F = GetSysColor(COLOR_3DFACE);
2404 c_L = GetSysColor(COLOR_3DLIGHT);
2406 if (loadflags & LR_LOADTRANSPARENT) {
2408 case 1: pix = pix >> 7; break;
2409 case 4: pix = pix >> 4; break;
2412 WARN_(resource)("(%d): Unsupported depth\n", bpp);
2415 if (pix >= colors) {
2416 WARN_(resource)("pixel has color index greater than biClrUsed!\n");
2419 if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
2420 ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
2421 ptr->rgbBlue = GetBValue(c_W);
2422 ptr->rgbGreen = GetGValue(c_W);
2423 ptr->rgbRed = GetRValue(c_W);
2425 if (loadflags & LR_LOADMAP3DCOLORS)
2426 for (i=0; i<colors; i++) {
2427 ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
2428 c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
2429 if (c_C == RGB(128, 128, 128)) {
2430 ptr->rgbRed = GetRValue(c_S);
2431 ptr->rgbGreen = GetGValue(c_S);
2432 ptr->rgbBlue = GetBValue(c_S);
2433 } else if (c_C == RGB(192, 192, 192)) {
2434 ptr->rgbRed = GetRValue(c_F);
2435 ptr->rgbGreen = GetGValue(c_F);
2436 ptr->rgbBlue = GetBValue(c_F);
2437 } else if (c_C == RGB(223, 223, 223)) {
2438 ptr->rgbRed = GetRValue(c_L);
2439 ptr->rgbGreen = GetGValue(c_L);
2440 ptr->rgbBlue = GetBValue(c_L);
2446 /**********************************************************************
2449 static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
2450 INT desiredx, INT desiredy, UINT loadflags )
2452 HBITMAP hbitmap = 0, orig_bm;
2456 BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL;
2460 LONG width, height, new_width, new_height;
2464 HDC screen_mem_dc = NULL;
2466 if (!(loadflags & LR_LOADFROMFILE))
2470 /* OEM bitmap: try to load the resource from user32.dll */
2471 instance = user32_module;
2474 if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
2475 if (!(handle = LoadResource( instance, hRsrc ))) return 0;
2477 if ((info = LockResource( handle )) == NULL) return 0;
2481 BITMAPFILEHEADER * bmfh;
2483 if (!(ptr = map_fileW( name, NULL ))) return 0;
2484 info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
2485 bmfh = (BITMAPFILEHEADER *)ptr;
2486 if (!( bmfh->bfType == 0x4d42 /* 'BM' */ &&
2487 bmfh->bfReserved1 == 0 &&
2488 bmfh->bfReserved2 == 0))
2490 WARN("Invalid/unsupported bitmap format!\n");
2491 UnmapViewOfFile( ptr );
2496 size = bitmap_info_size(info, DIB_RGB_COLORS);
2497 fix_info = HeapAlloc(GetProcessHeap(), 0, size);
2498 scaled_info = HeapAlloc(GetProcessHeap(), 0, size);
2500 if (!fix_info || !scaled_info) goto end;
2501 memcpy(fix_info, info, size);
2503 pix = *((LPBYTE)info + size);
2504 DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
2506 memcpy(scaled_info, fix_info, size);
2507 bm_type = DIB_GetBitmapInfo( &fix_info->bmiHeader, &width, &height,
2508 &bpp_dummy, &compr_dummy);
2510 new_width = desiredx;
2515 new_height = height > 0 ? desiredy : -desiredy;
2517 new_height = height;
2521 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader;
2522 core->bcWidth = new_width;
2523 core->bcHeight = new_height;
2527 scaled_info->bmiHeader.biWidth = new_width;
2528 scaled_info->bmiHeader.biHeight = new_height;
2531 if (new_height < 0) new_height = -new_height;
2533 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2534 if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end;
2536 bits = (char *)info + size;
2538 if (loadflags & LR_CREATEDIBSECTION)
2540 scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
2541 hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0);
2545 if (is_dib_monochrome(fix_info))
2546 hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL);
2548 hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height);
2551 orig_bm = SelectObject(screen_mem_dc, hbitmap);
2552 StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
2553 SelectObject(screen_mem_dc, orig_bm);
2556 if (screen_mem_dc) DeleteDC(screen_mem_dc);
2557 HeapFree(GetProcessHeap(), 0, scaled_info);
2558 HeapFree(GetProcessHeap(), 0, fix_info);
2559 if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
2564 /**********************************************************************
2565 * LoadImageA (USER32.@)
2569 HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
2570 INT desiredx, INT desiredy, UINT loadflags)
2575 if (IS_INTRESOURCE(name))
2576 return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
2579 DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2580 u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
2581 MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
2583 __EXCEPT_PAGE_FAULT {
2584 SetLastError( ERROR_INVALID_PARAMETER );
2588 res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
2589 HeapFree(GetProcessHeap(), 0, u_name);
2594 /******************************************************************************
2595 * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
2598 * hinst [I] Handle of instance that contains image
2599 * name [I] Name of image
2600 * type [I] Type of image
2601 * desiredx [I] Desired width
2602 * desiredy [I] Desired height
2603 * loadflags [I] Load flags
2606 * Success: Handle to newly loaded image
2609 * FIXME: Implementation lacks some features, see LR_ defines in winuser.h
2611 HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
2612 INT desiredx, INT desiredy, UINT loadflags )
2614 TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n",
2615 hinst,debugstr_w(name),type,desiredx,desiredy,loadflags);
2617 if (loadflags & LR_DEFAULTSIZE) {
2618 if (type == IMAGE_ICON) {
2619 if (!desiredx) desiredx = GetSystemMetrics(SM_CXICON);
2620 if (!desiredy) desiredy = GetSystemMetrics(SM_CYICON);
2621 } else if (type == IMAGE_CURSOR) {
2622 if (!desiredx) desiredx = GetSystemMetrics(SM_CXCURSOR);
2623 if (!desiredy) desiredy = GetSystemMetrics(SM_CYCURSOR);
2626 if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
2629 return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags );
2632 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2635 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2636 GetDeviceCaps(screen_dc, BITSPIXEL),
2642 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2643 1, TRUE, loadflags);
2648 /******************************************************************************
2649 * CopyImage (USER32.@) Creates new image and copies attributes to it
2652 * hnd [I] Handle to image to copy
2653 * type [I] Type of image to copy
2654 * desiredx [I] Desired width of new image
2655 * desiredy [I] Desired height of new image
2656 * flags [I] Copy flags
2659 * Success: Handle to newly created image
2663 * Only Windows NT 4.0 supports the LR_COPYRETURNORG flag for bitmaps,
2664 * all other versions (95/2000/XP have been tested) ignore it.
2667 * If LR_CREATEDIBSECTION is absent, the copy will be monochrome for
2668 * a monochrome source bitmap or if LR_MONOCHROME is present, otherwise
2669 * the copy will have the same depth as the screen.
2670 * The content of the image will only be copied if the bit depth of the
2671 * original image is compatible with the bit depth of the screen, or
2672 * if the source is a DIB section.
2673 * The LR_MONOCHROME flag is ignored if LR_CREATEDIBSECTION is present.
2675 HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
2676 INT desiredy, UINT flags )
2678 TRACE("hnd=%p, type=%u, desiredx=%d, desiredy=%d, flags=%x\n",
2679 hnd, type, desiredx, desiredy, flags);
2690 objSize = GetObjectW( hnd, sizeof(ds), &ds );
2691 if (!objSize) return 0;
2692 if ((desiredx < 0) || (desiredy < 0)) return 0;
2694 if (flags & LR_COPYFROMRESOURCE)
2696 FIXME("The flag LR_COPYFROMRESOURCE is not implemented for bitmaps\n");
2699 if (desiredx == 0) desiredx = ds.dsBm.bmWidth;
2700 if (desiredy == 0) desiredy = ds.dsBm.bmHeight;
2702 /* Allocate memory for a BITMAPINFOHEADER structure and a
2703 color table. The maximum number of colors in a color table
2704 is 256 which corresponds to a bitmap with depth 8.
2705 Bitmaps with higher depths don't have color tables. */
2706 bi = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
2709 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2710 bi->bmiHeader.biPlanes = ds.dsBm.bmPlanes;
2711 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2712 bi->bmiHeader.biCompression = BI_RGB;
2714 if (flags & LR_CREATEDIBSECTION)
2716 /* Create a DIB section. LR_MONOCHROME is ignored */
2718 HDC dc = CreateCompatibleDC(NULL);
2720 if (objSize == sizeof(DIBSECTION))
2722 /* The source bitmap is a DIB.
2723 Get its attributes to create an exact copy */
2724 memcpy(bi, &ds.dsBmih, sizeof(BITMAPINFOHEADER));
2727 /* Get the color table or the color masks */
2728 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2730 bi->bmiHeader.biWidth = desiredx;
2731 bi->bmiHeader.biHeight = desiredy;
2732 bi->bmiHeader.biSizeImage = 0;
2734 res = CreateDIBSection(dc, bi, DIB_RGB_COLORS, &bits, NULL, 0);
2739 /* Create a device-dependent bitmap */
2741 BOOL monochrome = (flags & LR_MONOCHROME);
2743 if (objSize == sizeof(DIBSECTION))
2745 /* The source bitmap is a DIB section.
2746 Get its attributes */
2747 HDC dc = CreateCompatibleDC(NULL);
2748 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2749 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2750 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2753 if (!monochrome && ds.dsBm.bmBitsPixel == 1)
2755 /* Look if the colors of the DIB are black and white */
2758 (bi->bmiColors[0].rgbRed == 0xff
2759 && bi->bmiColors[0].rgbGreen == 0xff
2760 && bi->bmiColors[0].rgbBlue == 0xff
2761 && bi->bmiColors[0].rgbReserved == 0
2762 && bi->bmiColors[1].rgbRed == 0
2763 && bi->bmiColors[1].rgbGreen == 0
2764 && bi->bmiColors[1].rgbBlue == 0
2765 && bi->bmiColors[1].rgbReserved == 0)
2767 (bi->bmiColors[0].rgbRed == 0
2768 && bi->bmiColors[0].rgbGreen == 0
2769 && bi->bmiColors[0].rgbBlue == 0
2770 && bi->bmiColors[0].rgbReserved == 0
2771 && bi->bmiColors[1].rgbRed == 0xff
2772 && bi->bmiColors[1].rgbGreen == 0xff
2773 && bi->bmiColors[1].rgbBlue == 0xff
2774 && bi->bmiColors[1].rgbReserved == 0);
2777 else if (!monochrome)
2779 monochrome = ds.dsBm.bmBitsPixel == 1;
2784 res = CreateBitmap(desiredx, desiredy, 1, 1, NULL);
2788 HDC screenDC = GetDC(NULL);
2789 res = CreateCompatibleBitmap(screenDC, desiredx, desiredy);
2790 ReleaseDC(NULL, screenDC);
2796 /* Only copy the bitmap if it's a DIB section or if it's
2797 compatible to the screen */
2800 if (objSize == sizeof(DIBSECTION))
2802 copyContents = TRUE;
2806 HDC screenDC = GetDC(NULL);
2807 int screen_depth = GetDeviceCaps(screenDC, BITSPIXEL);
2808 ReleaseDC(NULL, screenDC);
2810 copyContents = (ds.dsBm.bmBitsPixel == 1 || ds.dsBm.bmBitsPixel == screen_depth);
2815 /* The source bitmap may already be selected in a device context,
2816 use GetDIBits/StretchDIBits and not StretchBlt */
2821 dc = CreateCompatibleDC(NULL);
2823 bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
2824 bi->bmiHeader.biHeight = ds.dsBm.bmHeight;
2825 bi->bmiHeader.biSizeImage = 0;
2826 bi->bmiHeader.biClrUsed = 0;
2827 bi->bmiHeader.biClrImportant = 0;
2829 /* Fill in biSizeImage */
2830 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2831 bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, bi->bmiHeader.biSizeImage);
2837 /* Get the image bits of the source bitmap */
2838 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, bits, bi, DIB_RGB_COLORS);
2840 /* Copy it to the destination bitmap */
2841 oldBmp = SelectObject(dc, res);
2842 StretchDIBits(dc, 0, 0, desiredx, desiredy,
2843 0, 0, ds.dsBm.bmWidth, ds.dsBm.bmHeight,
2844 bits, bi, DIB_RGB_COLORS, SRCCOPY);
2845 SelectObject(dc, oldBmp);
2847 HeapFree(GetProcessHeap(), 0, bits);
2853 if (flags & LR_COPYDELETEORG)
2858 HeapFree(GetProcessHeap(), 0, bi);
2862 return CURSORICON_ExtCopy(hnd,type, desiredx, desiredy, flags);
2864 /* Should call CURSORICON_ExtCopy but more testing
2865 * needs to be done before we change this
2867 if (flags) FIXME("Flags are ignored\n");
2868 return CopyCursor(hnd);
2874 /******************************************************************************
2875 * LoadBitmapW (USER32.@) Loads bitmap from the executable file
2878 * Success: Handle to specified bitmap
2881 HBITMAP WINAPI LoadBitmapW(
2882 HINSTANCE instance, /* [in] Handle to application instance */
2883 LPCWSTR name) /* [in] Address of bitmap resource name */
2885 return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2888 /**********************************************************************
2889 * LoadBitmapA (USER32.@)
2893 HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
2895 return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );