/* * Cursor and icon support * * Copyright 1995 Alexandre Julliard * 1996 Martin Von Loewis * 1997 Alex Korobka * 1998 Turchanov Sergey * 2007 Henri Verbeet * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ /* * Theory: * * Cursors and icons are stored in a global heap block, with the * following layout: * * CURSORICONINFO info; * BYTE[] ANDbits; * BYTE[] XORbits; * * The bits structures are in the format of a device-dependent bitmap. * * This layout is very sub-optimal, as the bitmap bits are stored in * the X client instead of in the server like other bitmaps; however, * some programs (notably Paint Brush) expect to be able to manipulate * the bits directly :-( */ #include "config.h" #include "wine/port.h" #include #include #include #include "windef.h" #include "winbase.h" #include "wingdi.h" #include "winerror.h" #include "wine/winbase16.h" #include "wine/winuser16.h" #include "wine/exception.h" #include "wine/server.h" #include "controls.h" #include "user_private.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(cursor); WINE_DECLARE_DEBUG_CHANNEL(icon); WINE_DECLARE_DEBUG_CHANNEL(resource); #include "pshpack1.h" typedef struct { BYTE bWidth; BYTE bHeight; BYTE bColorCount; BYTE bReserved; WORD xHotspot; WORD yHotspot; DWORD dwDIBSize; DWORD dwDIBOffset; } CURSORICONFILEDIRENTRY; typedef struct { WORD idReserved; WORD idType; WORD idCount; CURSORICONFILEDIRENTRY idEntries[1]; } CURSORICONFILEDIR; #include "poppack.h" static RECT CURSOR_ClipRect; /* Cursor clipping rect */ static HDC screen_dc; static const WCHAR DISPLAYW[] = {'D','I','S','P','L','A','Y',0}; /********************************************************************** * ICONCACHE for cursors/icons loaded with LR_SHARED. * * FIXME: This should not be allocated on the system heap, but on a * subsystem-global heap (i.e. one for all Win16 processes, * and one for each Win32 process). */ typedef struct tagICONCACHE { struct tagICONCACHE *next; HMODULE hModule; HRSRC hRsrc; HRSRC hGroupRsrc; HICON hIcon; INT count; } ICONCACHE; static ICONCACHE *IconAnchor = NULL; static CRITICAL_SECTION IconCrst; static CRITICAL_SECTION_DEBUG critsect_debug = { 0, 0, &IconCrst, { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, 0, 0, { (DWORD_PTR)(__FILE__ ": IconCrst") } }; static CRITICAL_SECTION IconCrst = { &critsect_debug, -1, 0, 0, 0, 0 }; static const WORD ICON_HOTSPOT = 0x4242; /********************************************************************** * User objects management */ struct cursoricon_object { struct user_object obj; /* object header */ ULONG_PTR param; /* opaque param used by 16-bit code */ /* followed by cursor data in CURSORICONINFO format */ }; static HICON alloc_icon_handle( unsigned int size ) { struct cursoricon_object *obj = HeapAlloc( GetProcessHeap(), 0, sizeof(*obj) + size ); if (!obj) return 0; obj->param = 0; return alloc_user_handle( &obj->obj, USER_ICON ); } static struct tagCURSORICONINFO *get_icon_ptr( HICON handle ) { struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON ); if (obj == OBJ_OTHER_PROCESS) { WARN( "icon handle %p from other process\n", handle ); obj = NULL; } return obj ? (struct tagCURSORICONINFO *)(obj + 1) : NULL; } static void release_icon_ptr( HICON handle, struct tagCURSORICONINFO *ptr ) { release_user_handle_ptr( (struct cursoricon_object *)ptr - 1 ); } static BOOL free_icon_handle( HICON handle ) { struct cursoricon_object *obj = free_user_handle( handle, USER_ICON ); if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle ); else if (obj) { ULONG_PTR param = obj->param; HeapFree( GetProcessHeap(), 0, obj ); if (wow_handlers.free_icon_param && param) wow_handlers.free_icon_param( param ); USER_Driver->pDestroyCursorIcon( handle ); return TRUE; } return FALSE; } ULONG_PTR get_icon_param( HICON handle ) { ULONG_PTR ret = 0; struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON ); if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle ); else if (obj) { ret = obj->param; release_user_handle_ptr( obj ); } return ret; } ULONG_PTR set_icon_param( HICON handle, ULONG_PTR param ) { ULONG_PTR ret = 0; struct cursoricon_object *obj = get_user_handle_ptr( handle, USER_ICON ); if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle ); else if (obj) { ret = obj->param; obj->param = param; release_user_handle_ptr( obj ); } return ret; } /*********************************************************************** * map_fileW * * Helper function to map a file to memory: * name - file name * [RETURN] ptr - pointer to mapped file * [RETURN] filesize - pointer size of file to be stored if not NULL */ static void *map_fileW( LPCWSTR name, LPDWORD filesize ) { HANDLE hFile, hMapping; LPVOID ptr = NULL; hFile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, 0 ); if (hFile != INVALID_HANDLE_VALUE) { hMapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL ); if (hMapping) { ptr = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 ); CloseHandle( hMapping ); if (filesize) *filesize = GetFileSize( hFile, NULL ); } CloseHandle( hFile ); } return ptr; } /*********************************************************************** * get_bitmap_width_bytes * * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB * data. */ static int get_bitmap_width_bytes( int width, int bpp ) { switch(bpp) { case 1: return 2 * ((width+15) / 16); case 4: return 2 * ((width+3) / 4); case 24: width *= 3; /* fall through */ case 8: return width + (width & 1); case 16: case 15: return width * 2; case 32: return width * 4; default: WARN("Unknown depth %d, please report.\n", bpp ); } return -1; } /*********************************************************************** * get_dib_width_bytes * * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned. */ static int get_dib_width_bytes( int width, int depth ) { int words; switch(depth) { case 1: words = (width + 31) / 32; break; case 4: words = (width + 7) / 8; break; case 8: words = (width + 3) / 4; break; case 15: case 16: words = (width + 1) / 2; break; case 24: words = (width * 3 + 3)/4; break; default: WARN("(%d): Unsupported depth\n", depth ); /* fall through */ case 32: words = width; } return 4 * words; } /*********************************************************************** * bitmap_info_size * * Return the size of the bitmap info structure including color table. */ static int bitmap_info_size( const BITMAPINFO * info, WORD coloruse ) { int colors, masks = 0; if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER)) { const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info; colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0; return sizeof(BITMAPCOREHEADER) + colors * ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD)); } else /* assume BITMAPINFOHEADER */ { colors = info->bmiHeader.biClrUsed; if (colors > 256) /* buffer overflow otherwise */ colors = 256; if (!colors && (info->bmiHeader.biBitCount <= 8)) colors = 1 << info->bmiHeader.biBitCount; if (info->bmiHeader.biCompression == BI_BITFIELDS) masks = 3; return info->bmiHeader.biSize + masks * sizeof(DWORD) + colors * ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD)); } } /*********************************************************************** * is_dib_monochrome * * Returns whether a DIB can be converted to a monochrome DDB. * * A DIB can be converted if its color table contains only black and * white. Black must be the first color in the color table. * * Note : If the first color in the color table is white followed by * black, we can't convert it to a monochrome DDB with * SetDIBits, because black and white would be inverted. */ static BOOL is_dib_monochrome( const BITMAPINFO* info ) { if (info->bmiHeader.biBitCount != 1) return FALSE; if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER)) { const RGBTRIPLE *rgb = ((const BITMAPCOREINFO*)info)->bmciColors; /* Check if the first color is black */ if ((rgb->rgbtRed == 0) && (rgb->rgbtGreen == 0) && (rgb->rgbtBlue == 0)) { rgb++; /* Check if the second color is white */ return ((rgb->rgbtRed == 0xff) && (rgb->rgbtGreen == 0xff) && (rgb->rgbtBlue == 0xff)); } else return FALSE; } else /* assume BITMAPINFOHEADER */ { const RGBQUAD *rgb = info->bmiColors; /* Check if the first color is black */ if ((rgb->rgbRed == 0) && (rgb->rgbGreen == 0) && (rgb->rgbBlue == 0) && (rgb->rgbReserved == 0)) { rgb++; /* Check if the second color is white */ return ((rgb->rgbRed == 0xff) && (rgb->rgbGreen == 0xff) && (rgb->rgbBlue == 0xff) && (rgb->rgbReserved == 0)); } else return FALSE; } } /*********************************************************************** * DIB_GetBitmapInfo * * Get the info from a bitmap header. * Return 1 for INFOHEADER, 0 for COREHEADER, */ static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width, LONG *height, WORD *bpp, DWORD *compr ) { if (header->biSize == sizeof(BITMAPCOREHEADER)) { const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header; *width = core->bcWidth; *height = core->bcHeight; *bpp = core->bcBitCount; *compr = 0; return 0; } else if (header->biSize >= sizeof(BITMAPINFOHEADER)) { *width = header->biWidth; *height = header->biHeight; *bpp = header->biBitCount; *compr = header->biCompression; return 1; } ERR("(%d): unknown/wrong size for header\n", header->biSize ); return -1; } /********************************************************************** * CURSORICON_FindSharedIcon */ static HICON CURSORICON_FindSharedIcon( HMODULE hModule, HRSRC hRsrc ) { HICON hIcon = 0; ICONCACHE *ptr; EnterCriticalSection( &IconCrst ); for ( ptr = IconAnchor; ptr; ptr = ptr->next ) if ( ptr->hModule == hModule && ptr->hRsrc == hRsrc ) { ptr->count++; hIcon = ptr->hIcon; break; } LeaveCriticalSection( &IconCrst ); return hIcon; } /************************************************************************* * CURSORICON_FindCache * * Given a handle, find the corresponding cache element * * PARAMS * Handle [I] handle to an Image * * RETURNS * Success: The cache entry * Failure: NULL * */ static ICONCACHE* CURSORICON_FindCache(HICON hIcon) { ICONCACHE *ptr; ICONCACHE *pRet=NULL; BOOL IsFound = FALSE; EnterCriticalSection( &IconCrst ); for (ptr = IconAnchor; ptr != NULL && !IsFound; ptr = ptr->next) { if ( hIcon == ptr->hIcon ) { IsFound = TRUE; pRet = ptr; } } LeaveCriticalSection( &IconCrst ); return pRet; } /********************************************************************** * CURSORICON_AddSharedIcon */ static void CURSORICON_AddSharedIcon( HMODULE hModule, HRSRC hRsrc, HRSRC hGroupRsrc, HICON hIcon ) { ICONCACHE *ptr = HeapAlloc( GetProcessHeap(), 0, sizeof(ICONCACHE) ); if ( !ptr ) return; ptr->hModule = hModule; ptr->hRsrc = hRsrc; ptr->hIcon = hIcon; ptr->hGroupRsrc = hGroupRsrc; ptr->count = 1; EnterCriticalSection( &IconCrst ); ptr->next = IconAnchor; IconAnchor = ptr; LeaveCriticalSection( &IconCrst ); } /********************************************************************** * CURSORICON_DelSharedIcon */ static INT CURSORICON_DelSharedIcon( HICON hIcon ) { INT count = -1; ICONCACHE *ptr; EnterCriticalSection( &IconCrst ); for ( ptr = IconAnchor; ptr; ptr = ptr->next ) if ( ptr->hIcon == hIcon ) { if ( ptr->count > 0 ) ptr->count--; count = ptr->count; break; } LeaveCriticalSection( &IconCrst ); return count; } /********************************************************************** * get_icon_size */ BOOL get_icon_size( HICON handle, SIZE *size ) { CURSORICONINFO *info; if (!(info = get_icon_ptr( handle ))) return FALSE; size->cx = info->nWidth; size->cy = info->nHeight; release_icon_ptr( handle, info ); return TRUE; } /* * The following macro functions account for the irregularities of * accessing cursor and icon resources in files and resource entries. */ typedef BOOL (*fnGetCIEntry)( LPVOID dir, int n, int *width, int *height, int *bits ); /********************************************************************** * CURSORICON_FindBestIcon * * Find the icon closest to the requested size and bit depth. */ static int CURSORICON_FindBestIcon( LPVOID dir, fnGetCIEntry get_entry, int width, int height, int depth ) { int i, cx, cy, bits, bestEntry = -1; UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff; UINT iTempXDiff, iTempYDiff, iTempColorDiff; /* Find Best Fit */ iTotalDiff = 0xFFFFFFFF; iColorDiff = 0xFFFFFFFF; for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ ) { iTempXDiff = abs(width - cx); iTempYDiff = abs(height - cy); if(iTotalDiff > (iTempXDiff + iTempYDiff)) { iXDiff = iTempXDiff; iYDiff = iTempYDiff; iTotalDiff = iXDiff + iYDiff; } } /* Find Best Colors for Best Fit */ for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ ) { if(abs(width - cx) == iXDiff && abs(height - cy) == iYDiff) { iTempColorDiff = abs(depth - bits); if(iColorDiff > iTempColorDiff) { bestEntry = i; iColorDiff = iTempColorDiff; } } } return bestEntry; } static BOOL CURSORICON_GetResIconEntry( LPVOID dir, int n, int *width, int *height, int *bits ) { CURSORICONDIR *resdir = dir; ICONRESDIR *icon; if ( resdir->idCount <= n ) return FALSE; icon = &resdir->idEntries[n].ResInfo.icon; *width = icon->bWidth; *height = icon->bHeight; *bits = resdir->idEntries[n].wBitCount; return TRUE; } /********************************************************************** * CURSORICON_FindBestCursor * * Find the cursor closest to the requested size. * * FIXME: parameter 'color' ignored. */ static int CURSORICON_FindBestCursor( LPVOID dir, fnGetCIEntry get_entry, int width, int height, int depth ) { int i, maxwidth, maxheight, cx, cy, bits, bestEntry = -1; /* Double height to account for AND and XOR masks */ height *= 2; /* First find the largest one smaller than or equal to the requested size*/ maxwidth = maxheight = 0; for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ ) { if ((cx <= width) && (cy <= height) && (cx > maxwidth) && (cy > maxheight)) { bestEntry = i; maxwidth = cx; maxheight = cy; } } if (bestEntry != -1) return bestEntry; /* Now find the smallest one larger than the requested size */ maxwidth = maxheight = 255; for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ ) { if (((cx < maxwidth) && (cy < maxheight)) || (bestEntry == -1)) { bestEntry = i; maxwidth = cx; maxheight = cy; } } return bestEntry; } static BOOL CURSORICON_GetResCursorEntry( LPVOID dir, int n, int *width, int *height, int *bits ) { CURSORICONDIR *resdir = dir; CURSORDIR *cursor; if ( resdir->idCount <= n ) return FALSE; cursor = &resdir->idEntries[n].ResInfo.cursor; *width = cursor->wWidth; *height = cursor->wHeight; *bits = resdir->idEntries[n].wBitCount; return TRUE; } static CURSORICONDIRENTRY *CURSORICON_FindBestIconRes( CURSORICONDIR * dir, int width, int height, int depth ) { int n; n = CURSORICON_FindBestIcon( dir, CURSORICON_GetResIconEntry, width, height, depth ); if ( n < 0 ) return NULL; return &dir->idEntries[n]; } static CURSORICONDIRENTRY *CURSORICON_FindBestCursorRes( CURSORICONDIR *dir, int width, int height, int depth ) { int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetResCursorEntry, width, height, depth ); if ( n < 0 ) return NULL; return &dir->idEntries[n]; } static BOOL CURSORICON_GetFileEntry( LPVOID dir, int n, int *width, int *height, int *bits ) { CURSORICONFILEDIR *filedir = dir; CURSORICONFILEDIRENTRY *entry; BITMAPINFOHEADER *info; if ( filedir->idCount <= n ) return FALSE; entry = &filedir->idEntries[n]; /* FIXME: check against file size */ info = (BITMAPINFOHEADER *)((char *)dir + entry->dwDIBOffset); *width = entry->bWidth; *height = entry->bHeight; *bits = info->biBitCount; return TRUE; } static CURSORICONFILEDIRENTRY *CURSORICON_FindBestCursorFile( CURSORICONFILEDIR *dir, int width, int height, int depth ) { int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetFileEntry, width, height, depth ); if ( n < 0 ) return NULL; return &dir->idEntries[n]; } static CURSORICONFILEDIRENTRY *CURSORICON_FindBestIconFile( CURSORICONFILEDIR *dir, int width, int height, int depth ) { int n = CURSORICON_FindBestIcon( dir, CURSORICON_GetFileEntry, width, height, depth ); if ( n < 0 ) return NULL; return &dir->idEntries[n]; } /*********************************************************************** * stretch_blt_icon * * A helper function that stretches a bitmap buffer into an HBITMAP. * * PARAMS * hDest [I] The handle of the destination bitmap. * pDestInfo [I] The BITMAPINFO of the destination bitmap. * pSrcInfo [I] The BITMAPINFO of the source bitmap. * pSrcBits [I] A pointer to the source bitmap buffer. **/ static BOOL stretch_blt_icon(HBITMAP hDest, BITMAPINFO *pDestInfo, BITMAPINFO *pSrcInfo, char *pSrcBits) { HBITMAP hOld; BOOL res = FALSE; HDC hdcMem = CreateCompatibleDC(screen_dc); if (hdcMem) { hOld = SelectObject(hdcMem, hDest); res = StretchDIBits(hdcMem, 0, 0, pDestInfo->bmiHeader.biWidth, pDestInfo->bmiHeader.biHeight, 0, 0, pSrcInfo->bmiHeader.biWidth, pSrcInfo->bmiHeader.biHeight, pSrcBits, pSrcInfo, DIB_RGB_COLORS, SRCCOPY); SelectObject(hdcMem, hOld); DeleteDC( hdcMem ); } return res; } static HICON CURSORICON_CreateIconFromBMI( BITMAPINFO *bmi, POINT16 hotspot, BOOL bIcon, DWORD dwVersion, INT width, INT height, UINT cFlag ) { HICON hObj; int sizeAnd, sizeXor; HBITMAP hAndBits = 0, hXorBits = 0; /* error condition for later */ BITMAP bmpXor, bmpAnd; BOOL do_stretch; INT size; BITMAPINFO *pSrcInfo, *pDestInfo; if (dwVersion == 0x00020000) { FIXME_(cursor)("\t2.xx resources are not supported\n"); return 0; } /* Check bitmap header */ if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) && (bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) || bmi->bmiHeader.biCompression != BI_RGB) ) { WARN_(cursor)("\tinvalid resource bitmap header.\n"); return 0; } size = bitmap_info_size( bmi, DIB_RGB_COLORS ); if (!width) width = bmi->bmiHeader.biWidth; if (!height) height = bmi->bmiHeader.biHeight/2; do_stretch = (bmi->bmiHeader.biHeight/2 != height) || (bmi->bmiHeader.biWidth != width); /* Scale the hotspot */ if (do_stretch && hotspot.x != ICON_HOTSPOT && hotspot.y != ICON_HOTSPOT) { hotspot.x = (hotspot.x * width) / bmi->bmiHeader.biWidth; hotspot.y = (hotspot.y * height) / (bmi->bmiHeader.biHeight / 2); } if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL ); if (screen_dc) { /* Make sure we have room for the monochrome bitmap later on. * Note that BITMAPINFOINFO and BITMAPCOREHEADER are the same * up to and including the biBitCount. In-memory icon resource * format is as follows: * * BITMAPINFOHEADER icHeader // DIB header * RGBQUAD icColors[] // Color table * BYTE icXOR[] // DIB bits for XOR mask * BYTE icAND[] // DIB bits for AND mask */ pSrcInfo = HeapAlloc( GetProcessHeap(), 0, max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD))); pDestInfo = HeapAlloc( GetProcessHeap(), 0, max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD))); if (pSrcInfo && pDestInfo) { memcpy( pSrcInfo, bmi, size ); pSrcInfo->bmiHeader.biHeight /= 2; memcpy( pDestInfo, bmi, size ); pDestInfo->bmiHeader.biWidth = width; pDestInfo->bmiHeader.biHeight = height; pDestInfo->bmiHeader.biSizeImage = 0; /* Create the XOR bitmap */ if(pSrcInfo->bmiHeader.biBitCount == 32) { void *pDIBBuffer = NULL; hXorBits = CreateDIBSection(screen_dc, pDestInfo, DIB_RGB_COLORS, &pDIBBuffer, NULL, 0); if(hXorBits) { if (!stretch_blt_icon(hXorBits, pDestInfo, pSrcInfo, (char*)bmi + size)) { DeleteObject(hXorBits); hXorBits = 0; } } } else { if (do_stretch) { hXorBits = CreateCompatibleBitmap(screen_dc, width, height); if (hXorBits) { if (!stretch_blt_icon(hXorBits, pDestInfo, pSrcInfo, (char*)bmi + size)) { DeleteObject(hXorBits); hXorBits = 0; } } } else { if (is_dib_monochrome(bmi)) { hXorBits = CreateBitmap(width, height, 1, 1, NULL); SetDIBits(screen_dc, hXorBits, 0, height, (char *)bmi + size, pSrcInfo, DIB_RGB_COLORS); } else hXorBits = CreateDIBitmap(screen_dc, &pSrcInfo->bmiHeader, CBM_INIT, (char *)bmi + size, pSrcInfo, DIB_RGB_COLORS); } } if( hXorBits ) { char* xbits = (char *)bmi + size + get_dib_width_bytes( bmi->bmiHeader.biWidth, bmi->bmiHeader.biBitCount ) * abs( bmi->bmiHeader.biHeight ) / 2; pSrcInfo->bmiHeader.biBitCount = 1; if (pSrcInfo->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) { RGBQUAD *rgb = pSrcInfo->bmiColors; pSrcInfo->bmiHeader.biClrUsed = pSrcInfo->bmiHeader.biClrImportant = 2; rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00; rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff; rgb[0].rgbReserved = rgb[1].rgbReserved = 0; } else { RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)pSrcInfo) + 1); rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00; rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff; } /* Create the AND bitmap */ if (do_stretch) { hAndBits = CreateBitmap(width, height, 1, 1, NULL); if (!stretch_blt_icon(hAndBits, pDestInfo, pSrcInfo, xbits)) { DeleteObject(hAndBits); hAndBits = 0; } } else { hAndBits = CreateBitmap(width, height, 1, 1, NULL); SetDIBits(screen_dc, hAndBits, 0, height, xbits, pSrcInfo, DIB_RGB_COLORS); } if( !hAndBits ) { DeleteObject( hXorBits ); hXorBits = 0; } } } HeapFree( GetProcessHeap(), 0, pSrcInfo ); HeapFree( GetProcessHeap(), 0, pDestInfo ); } if( !hXorBits || !hAndBits ) { WARN_(cursor)("\tunable to create an icon bitmap.\n"); return 0; } /* Now create the CURSORICONINFO structure */ GetObjectA( hXorBits, sizeof(bmpXor), &bmpXor ); GetObjectA( hAndBits, sizeof(bmpAnd), &bmpAnd ); sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes; sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes; hObj = alloc_icon_handle( sizeof(CURSORICONINFO) + sizeXor + sizeAnd ); if (hObj) { CURSORICONINFO *info = get_icon_ptr( hObj ); info->ptHotSpot.x = hotspot.x; info->ptHotSpot.y = hotspot.y; info->nWidth = bmpXor.bmWidth; info->nHeight = bmpXor.bmHeight; info->nWidthBytes = bmpXor.bmWidthBytes; info->bPlanes = bmpXor.bmPlanes; info->bBitsPerPixel = bmpXor.bmBitsPixel; /* Transfer the bitmap bits to the CURSORICONINFO structure */ GetBitmapBits( hAndBits, sizeAnd, info + 1 ); GetBitmapBits( hXorBits, sizeXor, (char *)(info + 1) + sizeAnd ); release_icon_ptr( hObj, info ); USER_Driver->pCreateCursorIcon( hObj, info ); } DeleteObject( hAndBits ); DeleteObject( hXorBits ); return hObj; } /********************************************************************** * .ANI cursor support */ #define RIFF_FOURCC( c0, c1, c2, c3 ) \ ( (DWORD)(BYTE)(c0) | ( (DWORD)(BYTE)(c1) << 8 ) | \ ( (DWORD)(BYTE)(c2) << 16 ) | ( (DWORD)(BYTE)(c3) << 24 ) ) #define ANI_RIFF_ID RIFF_FOURCC('R', 'I', 'F', 'F') #define ANI_LIST_ID RIFF_FOURCC('L', 'I', 'S', 'T') #define ANI_ACON_ID RIFF_FOURCC('A', 'C', 'O', 'N') #define ANI_anih_ID RIFF_FOURCC('a', 'n', 'i', 'h') #define ANI_seq__ID RIFF_FOURCC('s', 'e', 'q', ' ') #define ANI_fram_ID RIFF_FOURCC('f', 'r', 'a', 'm') #define ANI_FLAG_ICON 0x1 #define ANI_FLAG_SEQUENCE 0x2 typedef struct { DWORD header_size; DWORD num_frames; DWORD num_steps; DWORD width; DWORD height; DWORD bpp; DWORD num_planes; DWORD display_rate; DWORD flags; } ani_header; typedef struct { DWORD data_size; const unsigned char *data; } riff_chunk_t; static void dump_ani_header( const ani_header *header ) { TRACE(" header size: %d\n", header->header_size); TRACE(" frames: %d\n", header->num_frames); TRACE(" steps: %d\n", header->num_steps); TRACE(" width: %d\n", header->width); TRACE(" height: %d\n", header->height); TRACE(" bpp: %d\n", header->bpp); TRACE(" planes: %d\n", header->num_planes); TRACE(" display rate: %d\n", header->display_rate); TRACE(" flags: 0x%08x\n", header->flags); } /* * RIFF: * DWORD "RIFF" * DWORD size * DWORD riff_id * BYTE[] data * * LIST: * DWORD "LIST" * DWORD size * DWORD list_id * BYTE[] data * * CHUNK: * DWORD chunk_id * DWORD size * BYTE[] data */ static void riff_find_chunk( DWORD chunk_id, DWORD chunk_type, const riff_chunk_t *parent_chunk, riff_chunk_t *chunk ) { const unsigned char *ptr = parent_chunk->data; const unsigned char *end = parent_chunk->data + (parent_chunk->data_size - (2 * sizeof(DWORD))); if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) end -= sizeof(DWORD); while (ptr < end) { if ((!chunk_type && *(const DWORD *)ptr == chunk_id ) || (chunk_type && *(const DWORD *)ptr == chunk_type && *((const DWORD *)ptr + 2) == chunk_id )) { ptr += sizeof(DWORD); chunk->data_size = (*(const DWORD *)ptr + 1) & ~1; ptr += sizeof(DWORD); if (chunk_type == ANI_LIST_ID || chunk_type == ANI_RIFF_ID) ptr += sizeof(DWORD); chunk->data = ptr; return; } ptr += sizeof(DWORD); ptr += (*(const DWORD *)ptr + 1) & ~1; ptr += sizeof(DWORD); } } /* * .ANI layout: * * RIFF:'ACON' RIFF chunk * |- CHUNK:'anih' Header * |- CHUNK:'seq ' Sequence information (optional) * \- LIST:'fram' Frame list * |- CHUNK:icon Cursor frames * |- CHUNK:icon * |- ... * \- CHUNK:icon */ static HCURSOR CURSORICON_CreateIconFromANI( const LPBYTE bits, DWORD bits_size, INT width, INT height, INT depth ) { HCURSOR cursor; ani_header header = {0}; LPBYTE frame_bits = 0; POINT16 hotspot; CURSORICONFILEDIRENTRY *entry; riff_chunk_t root_chunk = { bits_size, bits }; riff_chunk_t ACON_chunk = {0}; riff_chunk_t anih_chunk = {0}; riff_chunk_t fram_chunk = {0}; const unsigned char *icon_data; TRACE("bits %p, bits_size %d\n", bits, bits_size); if (!bits) return 0; riff_find_chunk( ANI_ACON_ID, ANI_RIFF_ID, &root_chunk, &ACON_chunk ); if (!ACON_chunk.data) { ERR("Failed to get root chunk.\n"); return 0; } riff_find_chunk( ANI_anih_ID, 0, &ACON_chunk, &anih_chunk ); if (!anih_chunk.data) { ERR("Failed to get 'anih' chunk.\n"); return 0; } memcpy( &header, anih_chunk.data, sizeof(header) ); dump_ani_header( &header ); riff_find_chunk( ANI_fram_ID, ANI_LIST_ID, &ACON_chunk, &fram_chunk ); if (!fram_chunk.data) { ERR("Failed to get icon list.\n"); return 0; } /* FIXME: For now, just load the first frame. Before we can load all the * frames, we need to write the needed code in wineserver, etc. to handle * cursors. Once this code is written, we can extend it to support .ani * cursors and then update user32 and winex11.drv to load all frames. * * Hopefully this will at least make some games (C&C3, etc.) more playable * in the meantime. */ FIXME("Loading all frames for .ani cursors not implemented.\n"); icon_data = fram_chunk.data + (2 * sizeof(DWORD)); entry = CURSORICON_FindBestIconFile( (CURSORICONFILEDIR *) icon_data, width, height, depth ); frame_bits = HeapAlloc( GetProcessHeap(), 0, entry->dwDIBSize ); memcpy( frame_bits, icon_data + entry->dwDIBOffset, entry->dwDIBSize ); if (!header.width || !header.height) { header.width = entry->bWidth; header.height = entry->bHeight; } hotspot.x = entry->xHotspot; hotspot.y = entry->yHotspot; cursor = CURSORICON_CreateIconFromBMI( (BITMAPINFO *) frame_bits, hotspot, FALSE, 0x00030000, header.width, header.height, 0 ); HeapFree( GetProcessHeap(), 0, frame_bits ); return cursor; } /********************************************************************** * CreateIconFromResourceEx (USER32.@) * * FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something * with cbSize parameter as well. */ HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize, BOOL bIcon, DWORD dwVersion, INT width, INT height, UINT cFlag ) { POINT16 hotspot; BITMAPINFO *bmi; hotspot.x = ICON_HOTSPOT; hotspot.y = ICON_HOTSPOT; TRACE_(cursor)("%p (%u bytes), ver %08x, %ix%i %s %s\n", bits, cbSize, dwVersion, width, height, bIcon ? "icon" : "cursor", (cFlag & LR_MONOCHROME) ? "mono" : "" ); if (bIcon) bmi = (BITMAPINFO *)bits; else /* get the hotspot */ { POINT16 *pt = (POINT16 *)bits; hotspot = *pt; bmi = (BITMAPINFO *)(pt + 1); } return CURSORICON_CreateIconFromBMI( bmi, hotspot, bIcon, dwVersion, width, height, cFlag ); } /********************************************************************** * CreateIconFromResource (USER32.@) */ HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize, BOOL bIcon, DWORD dwVersion) { return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0); } static HICON CURSORICON_LoadFromFile( LPCWSTR filename, INT width, INT height, INT depth, BOOL fCursor, UINT loadflags) { CURSORICONFILEDIRENTRY *entry; CURSORICONFILEDIR *dir; DWORD filesize = 0; HICON hIcon = 0; LPBYTE bits; POINT16 hotspot; TRACE("loading %s\n", debugstr_w( filename )); bits = map_fileW( filename, &filesize ); if (!bits) return hIcon; /* Check for .ani. */ if (memcmp( bits, "RIFF", 4 ) == 0) { hIcon = CURSORICON_CreateIconFromANI( bits, filesize, width, height, depth ); goto end; } dir = (CURSORICONFILEDIR*) bits; if ( filesize < sizeof(*dir) ) goto end; if ( filesize < (sizeof(*dir) + sizeof(dir->idEntries[0])*(dir->idCount-1)) ) goto end; if ( fCursor ) entry = CURSORICON_FindBestCursorFile( dir, width, height, depth ); else entry = CURSORICON_FindBestIconFile( dir, width, height, depth ); if ( !entry ) goto end; /* check that we don't run off the end of the file */ if ( entry->dwDIBOffset > filesize ) goto end; if ( entry->dwDIBOffset + entry->dwDIBSize > filesize ) goto end; /* Set the actual hotspot for cursors and ICON_HOTSPOT for icons. */ if ( fCursor ) { hotspot.x = entry->xHotspot; hotspot.y = entry->yHotspot; } else { hotspot.x = ICON_HOTSPOT; hotspot.y = ICON_HOTSPOT; } hIcon = CURSORICON_CreateIconFromBMI( (BITMAPINFO *)&bits[entry->dwDIBOffset], hotspot, !fCursor, 0x00030000, width, height, loadflags ); end: TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon ); UnmapViewOfFile( bits ); return hIcon; } /********************************************************************** * CURSORICON_Load * * Load a cursor or icon from resource or file. */ static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name, INT width, INT height, INT depth, BOOL fCursor, UINT loadflags) { HANDLE handle = 0; HICON hIcon = 0; HRSRC hRsrc, hGroupRsrc; CURSORICONDIR *dir; CURSORICONDIRENTRY *dirEntry; LPBYTE bits; WORD wResId; DWORD dwBytesInRes; TRACE("%p, %s, %dx%d, depth %d, fCursor %d, flags 0x%04x\n", hInstance, debugstr_w(name), width, height, depth, fCursor, loadflags); if ( loadflags & LR_LOADFROMFILE ) /* Load from file */ return CURSORICON_LoadFromFile( name, width, height, depth, fCursor, loadflags ); if (!hInstance) hInstance = user32_module; /* Load OEM cursor/icon */ /* don't cache 16-bit instances (FIXME: should never get 16-bit instances in the first place) */ if ((ULONG_PTR)hInstance >> 16 == 0) loadflags &= ~LR_SHARED; /* Get directory resource ID */ if (!(hRsrc = FindResourceW( hInstance, name, (LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) ))) return 0; hGroupRsrc = hRsrc; /* Find the best entry in the directory */ if (!(handle = LoadResource( hInstance, hRsrc ))) return 0; if (!(dir = LockResource( handle ))) return 0; if (fCursor) dirEntry = CURSORICON_FindBestCursorRes( dir, width, height, depth ); else dirEntry = CURSORICON_FindBestIconRes( dir, width, height, depth ); if (!dirEntry) return 0; wResId = dirEntry->wResId; dwBytesInRes = dirEntry->dwBytesInRes; FreeResource( handle ); /* Load the resource */ if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId), (LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0; /* If shared icon, check whether it was already loaded */ if ( (loadflags & LR_SHARED) && (hIcon = CURSORICON_FindSharedIcon( hInstance, hRsrc ) ) != 0 ) return hIcon; if (!(handle = LoadResource( hInstance, hRsrc ))) return 0; bits = LockResource( handle ); hIcon = CreateIconFromResourceEx( bits, dwBytesInRes, !fCursor, 0x00030000, width, height, loadflags); FreeResource( handle ); /* If shared icon, add to icon cache */ if ( hIcon && (loadflags & LR_SHARED) ) CURSORICON_AddSharedIcon( hInstance, hRsrc, hGroupRsrc, hIcon ); return hIcon; } /************************************************************************* * CURSORICON_ExtCopy * * Copies an Image from the Cache if LR_COPYFROMRESOURCE is specified * * PARAMS * Handle [I] handle to an Image * nType [I] Type of Handle (IMAGE_CURSOR | IMAGE_ICON) * iDesiredCX [I] The Desired width of the Image * iDesiredCY [I] The desired height of the Image * nFlags [I] The flags from CopyImage * * RETURNS * Success: The new handle of the Image * * NOTES * LR_COPYDELETEORG and LR_MONOCHROME are currently not implemented. * LR_MONOCHROME should be implemented by CreateIconFromResourceEx. * LR_COPYFROMRESOURCE will only work if the Image is in the Cache. * * */ static HICON CURSORICON_ExtCopy(HICON hIcon, UINT nType, INT iDesiredCX, INT iDesiredCY, UINT nFlags) { HICON hNew=0; TRACE_(icon)("hIcon %p, nType %u, iDesiredCX %i, iDesiredCY %i, nFlags %u\n", hIcon, nType, iDesiredCX, iDesiredCY, nFlags); if(hIcon == 0) { return 0; } /* Best Fit or Monochrome */ if( (nFlags & LR_COPYFROMRESOURCE && (iDesiredCX > 0 || iDesiredCY > 0)) || nFlags & LR_MONOCHROME) { ICONCACHE* pIconCache = CURSORICON_FindCache(hIcon); /* Not Found in Cache, then do a straight copy */ if(pIconCache == NULL) { hNew = CopyIcon( hIcon ); if(nFlags & LR_COPYFROMRESOURCE) { TRACE_(icon)("LR_COPYFROMRESOURCE: Failed to load from cache\n"); } } else { int iTargetCY = iDesiredCY, iTargetCX = iDesiredCX; LPBYTE pBits; HANDLE hMem; HRSRC hRsrc; DWORD dwBytesInRes; WORD wResId; CURSORICONDIR *pDir; CURSORICONDIRENTRY *pDirEntry; BOOL bIsIcon = (nType == IMAGE_ICON); /* Completing iDesiredCX CY for Monochrome Bitmaps if needed */ if(((nFlags & LR_MONOCHROME) && !(nFlags & LR_COPYFROMRESOURCE)) || (iDesiredCX == 0 && iDesiredCY == 0)) { iDesiredCY = GetSystemMetrics(bIsIcon ? SM_CYICON : SM_CYCURSOR); iDesiredCX = GetSystemMetrics(bIsIcon ? SM_CXICON : SM_CXCURSOR); } /* Retrieve the CURSORICONDIRENTRY */ if (!(hMem = LoadResource( pIconCache->hModule , pIconCache->hGroupRsrc))) { return 0; } if (!(pDir = LockResource( hMem ))) { return 0; } /* Find Best Fit */ if(bIsIcon) { pDirEntry = CURSORICON_FindBestIconRes( pDir, iDesiredCX, iDesiredCY, 256 ); } else { pDirEntry = CURSORICON_FindBestCursorRes( pDir, iDesiredCX, iDesiredCY, 1); } wResId = pDirEntry->wResId; dwBytesInRes = pDirEntry->dwBytesInRes; FreeResource(hMem); TRACE_(icon)("ResID %u, BytesInRes %u, Width %d, Height %d DX %d, DY %d\n", wResId, dwBytesInRes, pDirEntry->ResInfo.icon.bWidth, pDirEntry->ResInfo.icon.bHeight, iDesiredCX, iDesiredCY); /* Get the Best Fit */ if (!(hRsrc = FindResourceW(pIconCache->hModule , MAKEINTRESOURCEW(wResId), (LPWSTR)(bIsIcon ? RT_ICON : RT_CURSOR)))) { return 0; } if (!(hMem = LoadResource( pIconCache->hModule , hRsrc ))) { return 0; } pBits = LockResource( hMem ); if(nFlags & LR_DEFAULTSIZE) { iTargetCY = GetSystemMetrics(SM_CYICON); iTargetCX = GetSystemMetrics(SM_CXICON); } /* Create a New Icon with the proper dimension */ hNew = CreateIconFromResourceEx( pBits, dwBytesInRes, bIsIcon, 0x00030000, iTargetCX, iTargetCY, nFlags); FreeResource(hMem); } } else hNew = CopyIcon( hIcon ); return hNew; } /*********************************************************************** * CreateCursor (USER32.@) */ HCURSOR WINAPI CreateCursor( HINSTANCE hInstance, INT xHotSpot, INT yHotSpot, INT nWidth, INT nHeight, LPCVOID lpANDbits, LPCVOID lpXORbits ) { ICONINFO info; HCURSOR hCursor; TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n", nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits); info.fIcon = FALSE; info.xHotspot = xHotSpot; info.yHotspot = yHotSpot; info.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits ); info.hbmColor = CreateBitmap( nWidth, nHeight, 1, 1, lpXORbits ); hCursor = CreateIconIndirect( &info ); DeleteObject( info.hbmMask ); DeleteObject( info.hbmColor ); return hCursor; } /*********************************************************************** * CreateIcon (USER32.@) * * Creates an icon based on the specified bitmaps. The bitmaps must be * provided in a device dependent format and will be resized to * (SM_CXICON,SM_CYICON) and depth converted to match the screen's color * depth. The provided bitmaps must be top-down bitmaps. * Although Windows does not support 15bpp(*) this API must support it * for Winelib applications. * * (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp * format! * * RETURNS * Success: handle to an icon * Failure: NULL * * FIXME: Do we need to resize the bitmaps? */ HICON WINAPI CreateIcon( HINSTANCE hInstance, /* [in] the application's hInstance */ INT nWidth, /* [in] the width of the provided bitmaps */ INT nHeight, /* [in] the height of the provided bitmaps */ BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */ BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */ LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */ LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */ { ICONINFO iinfo; HICON hIcon; TRACE_(icon)("%dx%d, planes %d, bpp %d, xor %p, and %p\n", nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits, lpANDbits); iinfo.fIcon = TRUE; iinfo.xHotspot = ICON_HOTSPOT; iinfo.yHotspot = ICON_HOTSPOT; iinfo.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits ); iinfo.hbmColor = CreateBitmap( nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits ); hIcon = CreateIconIndirect( &iinfo ); DeleteObject( iinfo.hbmMask ); DeleteObject( iinfo.hbmColor ); return hIcon; } /*********************************************************************** * CopyIcon (USER32.@) */ HICON WINAPI CopyIcon( HICON hIcon ) { CURSORICONINFO *ptrOld, *ptrNew; int size; HICON hNew; if (!(ptrOld = get_icon_ptr( hIcon ))) return 0; size = sizeof(CURSORICONINFO); size += ptrOld->nHeight * get_bitmap_width_bytes( ptrOld->nWidth, 1 ); /* and bitmap */ size += ptrOld->nHeight * ptrOld->nWidthBytes; /* xor bitmap */ hNew = alloc_icon_handle( size ); ptrNew = get_icon_ptr( hNew ); memcpy( ptrNew, ptrOld, size ); release_icon_ptr( hIcon, ptrOld ); release_icon_ptr( hNew, ptrNew ); USER_Driver->pCreateCursorIcon( hNew, ptrNew ); return hNew; } /*********************************************************************** * DestroyIcon (USER32.@) */ BOOL WINAPI DestroyIcon( HICON hIcon ) { TRACE_(icon)("%p\n", hIcon ); if (CURSORICON_DelSharedIcon( hIcon ) == -1) free_icon_handle( hIcon ); return TRUE; } /*********************************************************************** * DestroyCursor (USER32.@) */ BOOL WINAPI DestroyCursor( HCURSOR hCursor ) { if (GetCursor() == hCursor) { WARN_(cursor)("Destroying active cursor!\n" ); return FALSE; } return DestroyIcon( hCursor ); } /*********************************************************************** * bitmap_has_alpha_channel * * Analyses bits bitmap to determine if alpha data is present. * * PARAMS * bpp [I] The bits-per-pixel of the bitmap * bitmapBits [I] A pointer to the bitmap data * bitmapLength [I] The length of the bitmap in bytes * * RETURNS * TRUE if an alpha channel is discovered, FALSE * * NOTE * Windows' behaviour is that if the icon bitmap is 32-bit and at * least one pixel has a non-zero alpha, then the bitmap is a * treated as having an alpha channel transparentcy. Otherwise, * it's treated as being completely opaque. * */ static BOOL bitmap_has_alpha_channel( int bpp, unsigned char *bitmapBits, unsigned int bitmapLength ) { /* Detect an alpha channel by looking for non-zero alpha pixels */ if(bpp == 32) { unsigned int offset; for(offset = 3; offset < bitmapLength; offset += 4) { if(bitmapBits[offset] != 0) { return TRUE; } } } return FALSE; } /*********************************************************************** * premultiply_alpha_channel * * Premultiplies the color channels of a 32-bit bitmap by the alpha * channel. This is a necessary step that must be carried out on * the image before it is passed to GdiAlphaBlend * * PARAMS * destBitmap [I] The destination bitmap buffer * srcBitmap [I] The source bitmap buffer * bitmapLength [I] The length of the bitmap in bytes * */ static void premultiply_alpha_channel( unsigned char *destBitmap, unsigned char *srcBitmap, unsigned int bitmapLength ) { unsigned char *destPixel = destBitmap; unsigned char *srcPixel = srcBitmap; while(destPixel < destBitmap + bitmapLength) { unsigned char alpha = srcPixel[3]; *(destPixel++) = *(srcPixel++) * alpha / 255; *(destPixel++) = *(srcPixel++) * alpha / 255; *(destPixel++) = *(srcPixel++) * alpha / 255; *(destPixel++) = *(srcPixel++); } } /*********************************************************************** * DrawIcon (USER32.@) */ BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon ) { CURSORICONINFO *ptr; HDC hMemDC; HBITMAP hXorBits = NULL, hAndBits = NULL, hBitTemp = NULL; COLORREF oldFg, oldBg; unsigned char *xorBitmapBits; unsigned int dibLength; TRACE("%p, (%d,%d), %p\n", hdc, x, y, hIcon); if (!(ptr = get_icon_ptr( hIcon ))) return FALSE; if (!(hMemDC = CreateCompatibleDC( hdc ))) { release_icon_ptr( hIcon, ptr ); return FALSE; } dibLength = ptr->nHeight * get_bitmap_width_bytes( ptr->nWidth, ptr->bBitsPerPixel); xorBitmapBits = (unsigned char *)(ptr + 1) + ptr->nHeight * get_bitmap_width_bytes(ptr->nWidth, 1); oldFg = SetTextColor( hdc, RGB(0,0,0) ); oldBg = SetBkColor( hdc, RGB(255,255,255) ); if(bitmap_has_alpha_channel(ptr->bBitsPerPixel, xorBitmapBits, dibLength)) { BITMAPINFOHEADER bmih; unsigned char *dibBits; memset(&bmih, 0, sizeof(BITMAPINFOHEADER)); bmih.biSize = sizeof(BITMAPINFOHEADER); bmih.biWidth = ptr->nWidth; bmih.biHeight = -ptr->nHeight; bmih.biPlanes = ptr->bPlanes; bmih.biBitCount = 32; bmih.biCompression = BI_RGB; hXorBits = CreateDIBSection(hdc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, (void*)&dibBits, NULL, 0); if (hXorBits && dibBits) { BLENDFUNCTION pixelblend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA }; /* Do the alpha blending render */ premultiply_alpha_channel(dibBits, xorBitmapBits, dibLength); hBitTemp = SelectObject( hMemDC, hXorBits ); /* Destination width/height has to be "System Large" size */ GdiAlphaBlend(hdc, x, y, GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, pixelblend); SelectObject( hMemDC, hBitTemp ); } } else { hAndBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1, ptr + 1 ); hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, ptr->bPlanes, ptr->bBitsPerPixel, xorBitmapBits); if (hXorBits && hAndBits) { hBitTemp = SelectObject( hMemDC, hAndBits ); StretchBlt( hdc, x, y, GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND ); SelectObject( hMemDC, hXorBits ); StretchBlt( hdc, x, y, GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCINVERT ); SelectObject( hMemDC, hBitTemp ); } } DeleteDC( hMemDC ); if (hXorBits) DeleteObject( hXorBits ); if (hAndBits) DeleteObject( hAndBits ); release_icon_ptr( hIcon, ptr ); SetTextColor( hdc, oldFg ); SetBkColor( hdc, oldBg ); return TRUE; } /*********************************************************************** * SetCursor (USER32.@) * * Set the cursor shape. * * RETURNS * A handle to the previous cursor shape. */ HCURSOR WINAPI DECLSPEC_HOTPATCH SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ ) { HCURSOR hOldCursor; int show_count; BOOL ret; TRACE("%p\n", hCursor); SERVER_START_REQ( set_cursor ) { req->flags = SET_CURSOR_HANDLE; req->handle = wine_server_user_handle( hCursor ); if ((ret = !wine_server_call_err( req ))) { hOldCursor = wine_server_ptr_handle( reply->prev_handle ); show_count = reply->prev_count; } } SERVER_END_REQ; if (!ret) return 0; /* Change the cursor shape only if it is visible */ if (show_count >= 0 && hOldCursor != hCursor) USER_Driver->pSetCursor( hCursor ); return hOldCursor; } /*********************************************************************** * ShowCursor (USER32.@) */ INT WINAPI DECLSPEC_HOTPATCH ShowCursor( BOOL bShow ) { HCURSOR cursor; int increment = bShow ? 1 : -1; int prev_count; SERVER_START_REQ( set_cursor ) { req->flags = SET_CURSOR_COUNT; req->show_count = increment; wine_server_call( req ); cursor = wine_server_ptr_handle( reply->prev_handle ); prev_count = reply->prev_count; } SERVER_END_REQ; TRACE("%d, count=%d\n", bShow, prev_count + increment ); if (!prev_count) USER_Driver->pSetCursor( bShow ? cursor : 0 ); return prev_count + increment; } /*********************************************************************** * GetCursor (USER32.@) */ HCURSOR WINAPI GetCursor(void) { HCURSOR ret; SERVER_START_REQ( set_cursor ) { req->flags = 0; wine_server_call( req ); ret = wine_server_ptr_handle( reply->prev_handle ); } SERVER_END_REQ; return ret; } /*********************************************************************** * ClipCursor (USER32.@) */ BOOL WINAPI DECLSPEC_HOTPATCH ClipCursor( const RECT *rect ) { RECT virt; SetRect( &virt, 0, 0, GetSystemMetrics( SM_CXVIRTUALSCREEN ), GetSystemMetrics( SM_CYVIRTUALSCREEN ) ); OffsetRect( &virt, GetSystemMetrics( SM_XVIRTUALSCREEN ), GetSystemMetrics( SM_YVIRTUALSCREEN ) ); TRACE( "Clipping to: %s was: %s screen: %s\n", wine_dbgstr_rect(rect), wine_dbgstr_rect(&CURSOR_ClipRect), wine_dbgstr_rect(&virt) ); if (!IntersectRect( &CURSOR_ClipRect, &virt, rect )) CURSOR_ClipRect = virt; USER_Driver->pClipCursor( rect ); return TRUE; } /*********************************************************************** * GetClipCursor (USER32.@) */ BOOL WINAPI DECLSPEC_HOTPATCH GetClipCursor( RECT *rect ) { /* If this is first time - initialize the rect */ if (IsRectEmpty( &CURSOR_ClipRect )) ClipCursor( NULL ); return CopyRect( rect, &CURSOR_ClipRect ); } /*********************************************************************** * SetSystemCursor (USER32.@) */ BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id) { FIXME("(%p,%08x),stub!\n", hcur, id); return TRUE; } /********************************************************************** * LookupIconIdFromDirectoryEx (USER32.@) */ INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon, INT width, INT height, UINT cFlag ) { CURSORICONDIR *dir = (CURSORICONDIR*)xdir; UINT retVal = 0; if( dir && !dir->idReserved && (dir->idType & 3) ) { CURSORICONDIRENTRY* entry; const HDC hdc = GetDC(0); const int depth = (cFlag & LR_MONOCHROME) ? 1 : GetDeviceCaps(hdc, BITSPIXEL); ReleaseDC(0, hdc); if( bIcon ) entry = CURSORICON_FindBestIconRes( dir, width, height, depth ); else entry = CURSORICON_FindBestCursorRes( dir, width, height, depth ); if( entry ) retVal = entry->wResId; } else WARN_(cursor)("invalid resource directory\n"); return retVal; } /********************************************************************** * LookupIconIdFromDirectory (USER32.@) */ INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon ) { return LookupIconIdFromDirectoryEx( dir, bIcon, bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR), bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME ); } /*********************************************************************** * LoadCursorW (USER32.@) */ HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name) { TRACE("%p, %s\n", hInstance, debugstr_w(name)); return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0, LR_SHARED | LR_DEFAULTSIZE ); } /*********************************************************************** * LoadCursorA (USER32.@) */ HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name) { TRACE("%p, %s\n", hInstance, debugstr_a(name)); return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0, LR_SHARED | LR_DEFAULTSIZE ); } /*********************************************************************** * LoadCursorFromFileW (USER32.@) */ HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name) { TRACE("%s\n", debugstr_w(name)); return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0, LR_LOADFROMFILE | LR_DEFAULTSIZE ); } /*********************************************************************** * LoadCursorFromFileA (USER32.@) */ HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name) { TRACE("%s\n", debugstr_a(name)); return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0, LR_LOADFROMFILE | LR_DEFAULTSIZE ); } /*********************************************************************** * LoadIconW (USER32.@) */ HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name) { TRACE("%p, %s\n", hInstance, debugstr_w(name)); return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0, LR_SHARED | LR_DEFAULTSIZE ); } /*********************************************************************** * LoadIconA (USER32.@) */ HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name) { TRACE("%p, %s\n", hInstance, debugstr_a(name)); return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0, LR_SHARED | LR_DEFAULTSIZE ); } /********************************************************************** * GetIconInfo (USER32.@) */ BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo) { CURSORICONINFO *ciconinfo; INT height; if (!(ciconinfo = get_icon_ptr( hIcon ))) return FALSE; TRACE("%p => %dx%d, %d bpp\n", hIcon, ciconinfo->nWidth, ciconinfo->nHeight, ciconinfo->bBitsPerPixel); if ( (ciconinfo->ptHotSpot.x == ICON_HOTSPOT) && (ciconinfo->ptHotSpot.y == ICON_HOTSPOT) ) { iconinfo->fIcon = TRUE; iconinfo->xHotspot = ciconinfo->nWidth / 2; iconinfo->yHotspot = ciconinfo->nHeight / 2; } else { iconinfo->fIcon = FALSE; iconinfo->xHotspot = ciconinfo->ptHotSpot.x; iconinfo->yHotspot = ciconinfo->ptHotSpot.y; } height = ciconinfo->nHeight; if (ciconinfo->bBitsPerPixel > 1) { iconinfo->hbmColor = CreateBitmap( ciconinfo->nWidth, ciconinfo->nHeight, ciconinfo->bPlanes, ciconinfo->bBitsPerPixel, (char *)(ciconinfo + 1) + ciconinfo->nHeight * get_bitmap_width_bytes (ciconinfo->nWidth,1) ); } else { iconinfo->hbmColor = 0; height *= 2; } iconinfo->hbmMask = CreateBitmap ( ciconinfo->nWidth, height, 1, 1, ciconinfo + 1); release_icon_ptr( hIcon, ciconinfo ); return TRUE; } /********************************************************************** * CreateIconIndirect (USER32.@) */ HICON WINAPI CreateIconIndirect(PICONINFO iconinfo) { DIBSECTION bmpXor; BITMAP bmpAnd; HICON hObj; int xor_objsize = 0, sizeXor = 0, sizeAnd, planes, bpp; TRACE("color %p, mask %p, hotspot %ux%u, fIcon %d\n", iconinfo->hbmColor, iconinfo->hbmMask, iconinfo->xHotspot, iconinfo->yHotspot, iconinfo->fIcon); if (!iconinfo->hbmMask) return 0; planes = GetDeviceCaps( screen_dc, PLANES ); bpp = GetDeviceCaps( screen_dc, BITSPIXEL ); if (iconinfo->hbmColor) { xor_objsize = GetObjectW( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor ); TRACE("color: width %d, height %d, width bytes %d, planes %u, bpp %u\n", bmpXor.dsBm.bmWidth, bmpXor.dsBm.bmHeight, bmpXor.dsBm.bmWidthBytes, bmpXor.dsBm.bmPlanes, bmpXor.dsBm.bmBitsPixel); /* we can use either depth 1 or screen depth for xor bitmap */ if (bmpXor.dsBm.bmPlanes == 1 && bmpXor.dsBm.bmBitsPixel == 1) planes = bpp = 1; sizeXor = bmpXor.dsBm.bmHeight * planes * get_bitmap_width_bytes( bmpXor.dsBm.bmWidth, bpp ); } GetObjectW( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd ); TRACE("mask: width %d, height %d, width bytes %d, planes %u, bpp %u\n", bmpAnd.bmWidth, bmpAnd.bmHeight, bmpAnd.bmWidthBytes, bmpAnd.bmPlanes, bmpAnd.bmBitsPixel); sizeAnd = bmpAnd.bmHeight * get_bitmap_width_bytes(bmpAnd.bmWidth, 1); hObj = alloc_icon_handle( sizeof(CURSORICONINFO) + sizeXor + sizeAnd ); if (hObj) { CURSORICONINFO *info = get_icon_ptr( hObj ); /* If we are creating an icon, the hotspot is unused */ if (iconinfo->fIcon) { info->ptHotSpot.x = ICON_HOTSPOT; info->ptHotSpot.y = ICON_HOTSPOT; } else { info->ptHotSpot.x = iconinfo->xHotspot; info->ptHotSpot.y = iconinfo->yHotspot; } if (iconinfo->hbmColor) { info->nWidth = bmpXor.dsBm.bmWidth; info->nHeight = bmpXor.dsBm.bmHeight; info->nWidthBytes = bmpXor.dsBm.bmWidthBytes; info->bPlanes = planes; info->bBitsPerPixel = bpp; } else { info->nWidth = bmpAnd.bmWidth; info->nHeight = bmpAnd.bmHeight / 2; info->nWidthBytes = get_bitmap_width_bytes(bmpAnd.bmWidth, 1); info->bPlanes = 1; info->bBitsPerPixel = 1; } /* Transfer the bitmap bits to the CURSORICONINFO structure */ /* Some apps pass a color bitmap as a mask, convert it to b/w */ if (bmpAnd.bmBitsPixel == 1) { GetBitmapBits( iconinfo->hbmMask, sizeAnd, info + 1 ); } else { HDC hdc_mem, hdc_mem2; HBITMAP hbmp_mem_old, hbmp_mem2_old, hbmp_mono; hdc_mem = CreateCompatibleDC( 0 ); hdc_mem2 = CreateCompatibleDC( 0 ); hbmp_mono = CreateBitmap( bmpAnd.bmWidth, bmpAnd.bmHeight, 1, 1, NULL ); hbmp_mem_old = SelectObject( hdc_mem, iconinfo->hbmMask ); hbmp_mem2_old = SelectObject( hdc_mem2, hbmp_mono ); BitBlt( hdc_mem2, 0, 0, bmpAnd.bmWidth, bmpAnd.bmHeight, hdc_mem, 0, 0, SRCCOPY ); SelectObject( hdc_mem, hbmp_mem_old ); SelectObject( hdc_mem2, hbmp_mem2_old ); DeleteDC( hdc_mem ); DeleteDC( hdc_mem2 ); GetBitmapBits( hbmp_mono, sizeAnd, info + 1 ); DeleteObject( hbmp_mono ); } if (iconinfo->hbmColor) { char *dst_bits = (char*)(info + 1) + sizeAnd; if (bmpXor.dsBm.bmPlanes == planes && bmpXor.dsBm.bmBitsPixel == bpp) GetBitmapBits( iconinfo->hbmColor, sizeXor, dst_bits ); else { BITMAPINFO bminfo; int dib_width = get_dib_width_bytes( info->nWidth, info->bBitsPerPixel ); int bitmap_width = get_bitmap_width_bytes( info->nWidth, info->bBitsPerPixel ); bminfo.bmiHeader.biSize = sizeof(bminfo); bminfo.bmiHeader.biWidth = info->nWidth; bminfo.bmiHeader.biHeight = info->nHeight; bminfo.bmiHeader.biPlanes = info->bPlanes; bminfo.bmiHeader.biBitCount = info->bBitsPerPixel; bminfo.bmiHeader.biCompression = BI_RGB; bminfo.bmiHeader.biSizeImage = info->nHeight * dib_width; bminfo.bmiHeader.biXPelsPerMeter = 0; bminfo.bmiHeader.biYPelsPerMeter = 0; bminfo.bmiHeader.biClrUsed = 0; bminfo.bmiHeader.biClrImportant = 0; /* swap lines for dib sections */ if (xor_objsize == sizeof(DIBSECTION)) bminfo.bmiHeader.biHeight = -bminfo.bmiHeader.biHeight; if (dib_width != bitmap_width) /* need to fixup alignment */ { char *src_bits = HeapAlloc( GetProcessHeap(), 0, bminfo.bmiHeader.biSizeImage ); if (src_bits && GetDIBits( screen_dc, iconinfo->hbmColor, 0, info->nHeight, src_bits, &bminfo, DIB_RGB_COLORS )) { int y; for (y = 0; y < info->nHeight; y++) memcpy( dst_bits + y * bitmap_width, src_bits + y * dib_width, bitmap_width ); } HeapFree( GetProcessHeap(), 0, src_bits ); } else GetDIBits( screen_dc, iconinfo->hbmColor, 0, info->nHeight, dst_bits, &bminfo, DIB_RGB_COLORS ); } } release_icon_ptr( hObj, info ); USER_Driver->pCreateCursorIcon( hObj, info ); } return hObj; } /****************************************************************************** * DrawIconEx (USER32.@) Draws an icon or cursor on device context * * NOTES * Why is this using SM_CXICON instead of SM_CXCURSOR? * * PARAMS * hdc [I] Handle to device context * x0 [I] X coordinate of upper left corner * y0 [I] Y coordinate of upper left corner * hIcon [I] Handle to icon to draw * cxWidth [I] Width of icon * cyWidth [I] Height of icon * istep [I] Index of frame in animated cursor * hbr [I] Handle to background brush * flags [I] Icon-drawing flags * * RETURNS * Success: TRUE * Failure: FALSE */ BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon, INT cxWidth, INT cyWidth, UINT istep, HBRUSH hbr, UINT flags ) { CURSORICONINFO *ptr; HDC hDC_off = 0, hMemDC; BOOL result = FALSE, DoOffscreen; HBITMAP hB_off = 0, hOld = 0; unsigned char *xorBitmapBits; unsigned int xorLength; BOOL has_alpha = FALSE; TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n", hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags ); if (!(ptr = get_icon_ptr( hIcon ))) return FALSE; if (!(hMemDC = CreateCompatibleDC( hdc ))) { release_icon_ptr( hIcon, ptr ); return FALSE; } if (istep) FIXME_(icon)("Ignoring istep=%d\n", istep); if (flags & DI_NOMIRROR) FIXME_(icon)("Ignoring flag DI_NOMIRROR\n"); xorLength = ptr->nHeight * get_bitmap_width_bytes( ptr->nWidth, ptr->bBitsPerPixel); xorBitmapBits = (unsigned char *)(ptr + 1) + ptr->nHeight * get_bitmap_width_bytes(ptr->nWidth, 1); if (flags & DI_IMAGE) has_alpha = bitmap_has_alpha_channel( ptr->bBitsPerPixel, xorBitmapBits, xorLength); /* Calculate the size of the destination image. */ if (cxWidth == 0) { if (flags & DI_DEFAULTSIZE) cxWidth = GetSystemMetrics (SM_CXICON); else cxWidth = ptr->nWidth; } if (cyWidth == 0) { if (flags & DI_DEFAULTSIZE) cyWidth = GetSystemMetrics (SM_CYICON); else cyWidth = ptr->nHeight; } DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH); if (DoOffscreen) { RECT r; r.left = 0; r.top = 0; r.right = cxWidth; r.bottom = cxWidth; hDC_off = CreateCompatibleDC(hdc); hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth); if (hDC_off && hB_off) { hOld = SelectObject(hDC_off, hB_off); FillRect(hDC_off, &r, hbr); } } if (hMemDC && (!DoOffscreen || (hDC_off && hB_off))) { HBITMAP hBitTemp; HBITMAP hXorBits = NULL, hAndBits = NULL; COLORREF oldFg, oldBg; INT nStretchMode; nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS); oldFg = SetTextColor( hdc, RGB(0,0,0) ); oldBg = SetBkColor( hdc, RGB(255,255,255) ); if (((flags & DI_MASK) && !(flags & DI_IMAGE)) || ((flags & DI_MASK) && !has_alpha)) { hAndBits = CreateBitmap ( ptr->nWidth, ptr->nHeight, 1, 1, ptr + 1 ); if (hAndBits) { hBitTemp = SelectObject( hMemDC, hAndBits ); if (DoOffscreen) StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth, hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND); else StretchBlt (hdc, x0, y0, cxWidth, cyWidth, hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND); SelectObject( hMemDC, hBitTemp ); } } if (flags & DI_IMAGE) { if (ptr->bPlanes * ptr->bBitsPerPixel == 1) { hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1, xorBitmapBits ); } else { unsigned char *dibBits; BITMAPINFO *bmi = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )); bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); bmi->bmiHeader.biWidth = ptr->nWidth; bmi->bmiHeader.biHeight = -ptr->nHeight; bmi->bmiHeader.biPlanes = ptr->bPlanes; bmi->bmiHeader.biBitCount = ptr->bBitsPerPixel; bmi->bmiHeader.biCompression = BI_RGB; /* FIXME: color table */ hXorBits = CreateDIBSection(hdc, bmi, DIB_RGB_COLORS, (void*)&dibBits, NULL, 0); if (hXorBits) { if(has_alpha) premultiply_alpha_channel(dibBits, xorBitmapBits, xorLength); else memcpy(dibBits, xorBitmapBits, xorLength); } } if (hXorBits) { if(has_alpha) { BLENDFUNCTION pixelblend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA }; /* Do the alpha blending render */ hBitTemp = SelectObject( hMemDC, hXorBits ); if (DoOffscreen) GdiAlphaBlend(hDC_off, 0, 0, cxWidth, cyWidth, hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, pixelblend); else GdiAlphaBlend(hdc, x0, y0, cxWidth, cyWidth, hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, pixelblend); SelectObject( hMemDC, hBitTemp ); } else { hBitTemp = SelectObject( hMemDC, hXorBits ); if (DoOffscreen) StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth, hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT); else StretchBlt (hdc, x0, y0, cxWidth, cyWidth, hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT); SelectObject( hMemDC, hBitTemp ); } DeleteObject( hXorBits ); } } result = TRUE; SetTextColor( hdc, oldFg ); SetBkColor( hdc, oldBg ); if (hAndBits) DeleteObject( hAndBits ); SetStretchBltMode (hdc, nStretchMode); if (DoOffscreen) { BitBlt(hdc, x0, y0, cxWidth, cyWidth, hDC_off, 0, 0, SRCCOPY); SelectObject(hDC_off, hOld); } } if (hMemDC) DeleteDC( hMemDC ); if (hDC_off) DeleteDC(hDC_off); if (hB_off) DeleteObject(hB_off); release_icon_ptr( hIcon, ptr ); return result; } /*********************************************************************** * DIB_FixColorsToLoadflags * * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS * are in loadflags */ static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix) { int colors; COLORREF c_W, c_S, c_F, c_L, c_C; int incr,i; RGBQUAD *ptr; int bitmap_type; LONG width; LONG height; WORD bpp; DWORD compr; if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1)) { WARN_(resource)("Invalid bitmap\n"); return; } if (bpp > 8) return; if (bitmap_type == 0) /* BITMAPCOREHEADER */ { incr = 3; colors = 1 << bpp; } else { incr = 4; colors = bmi->bmiHeader.biClrUsed; if (colors > 256) colors = 256; if (!colors && (bpp <= 8)) colors = 1 << bpp; } c_W = GetSysColor(COLOR_WINDOW); c_S = GetSysColor(COLOR_3DSHADOW); c_F = GetSysColor(COLOR_3DFACE); c_L = GetSysColor(COLOR_3DLIGHT); if (loadflags & LR_LOADTRANSPARENT) { switch (bpp) { case 1: pix = pix >> 7; break; case 4: pix = pix >> 4; break; case 8: break; default: WARN_(resource)("(%d): Unsupported depth\n", bpp); return; } if (pix >= colors) { WARN_(resource)("pixel has color index greater than biClrUsed!\n"); return; } if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F; ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr); ptr->rgbBlue = GetBValue(c_W); ptr->rgbGreen = GetGValue(c_W); ptr->rgbRed = GetRValue(c_W); } if (loadflags & LR_LOADMAP3DCOLORS) for (i=0; ibmiColors+i*incr); c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue); if (c_C == RGB(128, 128, 128)) { ptr->rgbRed = GetRValue(c_S); ptr->rgbGreen = GetGValue(c_S); ptr->rgbBlue = GetBValue(c_S); } else if (c_C == RGB(192, 192, 192)) { ptr->rgbRed = GetRValue(c_F); ptr->rgbGreen = GetGValue(c_F); ptr->rgbBlue = GetBValue(c_F); } else if (c_C == RGB(223, 223, 223)) { ptr->rgbRed = GetRValue(c_L); ptr->rgbGreen = GetGValue(c_L); ptr->rgbBlue = GetBValue(c_L); } } } /********************************************************************** * BITMAP_Load */ static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name, INT desiredx, INT desiredy, UINT loadflags ) { HBITMAP hbitmap = 0, orig_bm; HRSRC hRsrc; HGLOBAL handle; char *ptr = NULL; BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL; int size; BYTE pix; char *bits; LONG width, height, new_width, new_height; WORD bpp_dummy; DWORD compr_dummy; INT bm_type; HDC screen_mem_dc = NULL; if (!(loadflags & LR_LOADFROMFILE)) { if (!instance) { /* OEM bitmap: try to load the resource from user32.dll */ instance = user32_module; } if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0; if (!(handle = LoadResource( instance, hRsrc ))) return 0; if ((info = LockResource( handle )) == NULL) return 0; } else { BITMAPFILEHEADER * bmfh; if (!(ptr = map_fileW( name, NULL ))) return 0; info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER)); bmfh = (BITMAPFILEHEADER *)ptr; if (bmfh->bfType != 0x4d42 /* 'BM' */) { WARN("Invalid/unsupported bitmap format!\n"); UnmapViewOfFile( ptr ); return 0; } } size = bitmap_info_size(info, DIB_RGB_COLORS); fix_info = HeapAlloc(GetProcessHeap(), 0, size); scaled_info = HeapAlloc(GetProcessHeap(), 0, size); if (!fix_info || !scaled_info) goto end; memcpy(fix_info, info, size); pix = *((LPBYTE)info + size); DIB_FixColorsToLoadflags(fix_info, loadflags, pix); memcpy(scaled_info, fix_info, size); bm_type = DIB_GetBitmapInfo( &fix_info->bmiHeader, &width, &height, &bpp_dummy, &compr_dummy); if(desiredx != 0) new_width = desiredx; else new_width = width; if(desiredy != 0) new_height = height > 0 ? desiredy : -desiredy; else new_height = height; if(bm_type == 0) { BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader; core->bcWidth = new_width; core->bcHeight = new_height; } else { scaled_info->bmiHeader.biWidth = new_width; scaled_info->bmiHeader.biHeight = new_height; } if (new_height < 0) new_height = -new_height; if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL ); if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end; bits = (char *)info + size; if (loadflags & LR_CREATEDIBSECTION) { scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */ hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0); } else { if (is_dib_monochrome(fix_info)) hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL); else hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height); } orig_bm = SelectObject(screen_mem_dc, hbitmap); StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY); SelectObject(screen_mem_dc, orig_bm); end: if (screen_mem_dc) DeleteDC(screen_mem_dc); HeapFree(GetProcessHeap(), 0, scaled_info); HeapFree(GetProcessHeap(), 0, fix_info); if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr ); return hbitmap; } /********************************************************************** * LoadImageA (USER32.@) * * See LoadImageW. */ HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type, INT desiredx, INT desiredy, UINT loadflags) { HANDLE res; LPWSTR u_name; if (IS_INTRESOURCE(name)) return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags); __TRY { DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 ); u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) ); MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len ); } __EXCEPT_PAGE_FAULT { SetLastError( ERROR_INVALID_PARAMETER ); return 0; } __ENDTRY res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags); HeapFree(GetProcessHeap(), 0, u_name); return res; } /****************************************************************************** * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap * * PARAMS * hinst [I] Handle of instance that contains image * name [I] Name of image * type [I] Type of image * desiredx [I] Desired width * desiredy [I] Desired height * loadflags [I] Load flags * * RETURNS * Success: Handle to newly loaded image * Failure: NULL * * FIXME: Implementation lacks some features, see LR_ defines in winuser.h */ HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type, INT desiredx, INT desiredy, UINT loadflags ) { TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n", hinst,debugstr_w(name),type,desiredx,desiredy,loadflags); if (loadflags & LR_DEFAULTSIZE) { if (type == IMAGE_ICON) { if (!desiredx) desiredx = GetSystemMetrics(SM_CXICON); if (!desiredy) desiredy = GetSystemMetrics(SM_CYICON); } else if (type == IMAGE_CURSOR) { if (!desiredx) desiredx = GetSystemMetrics(SM_CXCURSOR); if (!desiredy) desiredy = GetSystemMetrics(SM_CYCURSOR); } } if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED; switch (type) { case IMAGE_BITMAP: return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags ); case IMAGE_ICON: if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL ); if (screen_dc) { return CURSORICON_Load(hinst, name, desiredx, desiredy, GetDeviceCaps(screen_dc, BITSPIXEL), FALSE, loadflags); } break; case IMAGE_CURSOR: return CURSORICON_Load(hinst, name, desiredx, desiredy, 1, TRUE, loadflags); } return 0; } /****************************************************************************** * CopyImage (USER32.@) Creates new image and copies attributes to it * * PARAMS * hnd [I] Handle to image to copy * type [I] Type of image to copy * desiredx [I] Desired width of new image * desiredy [I] Desired height of new image * flags [I] Copy flags * * RETURNS * Success: Handle to newly created image * Failure: NULL * * BUGS * Only Windows NT 4.0 supports the LR_COPYRETURNORG flag for bitmaps, * all other versions (95/2000/XP have been tested) ignore it. * * NOTES * If LR_CREATEDIBSECTION is absent, the copy will be monochrome for * a monochrome source bitmap or if LR_MONOCHROME is present, otherwise * the copy will have the same depth as the screen. * The content of the image will only be copied if the bit depth of the * original image is compatible with the bit depth of the screen, or * if the source is a DIB section. * The LR_MONOCHROME flag is ignored if LR_CREATEDIBSECTION is present. */ HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx, INT desiredy, UINT flags ) { TRACE("hnd=%p, type=%u, desiredx=%d, desiredy=%d, flags=%x\n", hnd, type, desiredx, desiredy, flags); switch (type) { case IMAGE_BITMAP: { HBITMAP res = NULL; DIBSECTION ds; int objSize; BITMAPINFO * bi; objSize = GetObjectW( hnd, sizeof(ds), &ds ); if (!objSize) return 0; if ((desiredx < 0) || (desiredy < 0)) return 0; if (flags & LR_COPYFROMRESOURCE) { FIXME("The flag LR_COPYFROMRESOURCE is not implemented for bitmaps\n"); } if (desiredx == 0) desiredx = ds.dsBm.bmWidth; if (desiredy == 0) desiredy = ds.dsBm.bmHeight; /* Allocate memory for a BITMAPINFOHEADER structure and a color table. The maximum number of colors in a color table is 256 which corresponds to a bitmap with depth 8. Bitmaps with higher depths don't have color tables. */ bi = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD)); if (!bi) return 0; bi->bmiHeader.biSize = sizeof(bi->bmiHeader); bi->bmiHeader.biPlanes = ds.dsBm.bmPlanes; bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel; bi->bmiHeader.biCompression = BI_RGB; if (flags & LR_CREATEDIBSECTION) { /* Create a DIB section. LR_MONOCHROME is ignored */ void * bits; HDC dc = CreateCompatibleDC(NULL); if (objSize == sizeof(DIBSECTION)) { /* The source bitmap is a DIB. Get its attributes to create an exact copy */ memcpy(bi, &ds.dsBmih, sizeof(BITMAPINFOHEADER)); } /* Get the color table or the color masks */ GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS); bi->bmiHeader.biWidth = desiredx; bi->bmiHeader.biHeight = desiredy; bi->bmiHeader.biSizeImage = 0; res = CreateDIBSection(dc, bi, DIB_RGB_COLORS, &bits, NULL, 0); DeleteDC(dc); } else { /* Create a device-dependent bitmap */ BOOL monochrome = (flags & LR_MONOCHROME); if (objSize == sizeof(DIBSECTION)) { /* The source bitmap is a DIB section. Get its attributes */ HDC dc = CreateCompatibleDC(NULL); bi->bmiHeader.biSize = sizeof(bi->bmiHeader); bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel; GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS); DeleteDC(dc); if (!monochrome && ds.dsBm.bmBitsPixel == 1) { /* Look if the colors of the DIB are black and white */ monochrome = (bi->bmiColors[0].rgbRed == 0xff && bi->bmiColors[0].rgbGreen == 0xff && bi->bmiColors[0].rgbBlue == 0xff && bi->bmiColors[0].rgbReserved == 0 && bi->bmiColors[1].rgbRed == 0 && bi->bmiColors[1].rgbGreen == 0 && bi->bmiColors[1].rgbBlue == 0 && bi->bmiColors[1].rgbReserved == 0) || (bi->bmiColors[0].rgbRed == 0 && bi->bmiColors[0].rgbGreen == 0 && bi->bmiColors[0].rgbBlue == 0 && bi->bmiColors[0].rgbReserved == 0 && bi->bmiColors[1].rgbRed == 0xff && bi->bmiColors[1].rgbGreen == 0xff && bi->bmiColors[1].rgbBlue == 0xff && bi->bmiColors[1].rgbReserved == 0); } } else if (!monochrome) { monochrome = ds.dsBm.bmBitsPixel == 1; } if (monochrome) { res = CreateBitmap(desiredx, desiredy, 1, 1, NULL); } else { HDC screenDC = GetDC(NULL); res = CreateCompatibleBitmap(screenDC, desiredx, desiredy); ReleaseDC(NULL, screenDC); } } if (res) { /* Only copy the bitmap if it's a DIB section or if it's compatible to the screen */ BOOL copyContents; if (objSize == sizeof(DIBSECTION)) { copyContents = TRUE; } else { HDC screenDC = GetDC(NULL); int screen_depth = GetDeviceCaps(screenDC, BITSPIXEL); ReleaseDC(NULL, screenDC); copyContents = (ds.dsBm.bmBitsPixel == 1 || ds.dsBm.bmBitsPixel == screen_depth); } if (copyContents) { /* The source bitmap may already be selected in a device context, use GetDIBits/StretchDIBits and not StretchBlt */ HDC dc; void * bits; dc = CreateCompatibleDC(NULL); bi->bmiHeader.biWidth = ds.dsBm.bmWidth; bi->bmiHeader.biHeight = ds.dsBm.bmHeight; bi->bmiHeader.biSizeImage = 0; bi->bmiHeader.biClrUsed = 0; bi->bmiHeader.biClrImportant = 0; /* Fill in biSizeImage */ GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS); bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, bi->bmiHeader.biSizeImage); if (bits) { HBITMAP oldBmp; /* Get the image bits of the source bitmap */ GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, bits, bi, DIB_RGB_COLORS); /* Copy it to the destination bitmap */ oldBmp = SelectObject(dc, res); StretchDIBits(dc, 0, 0, desiredx, desiredy, 0, 0, ds.dsBm.bmWidth, ds.dsBm.bmHeight, bits, bi, DIB_RGB_COLORS, SRCCOPY); SelectObject(dc, oldBmp); HeapFree(GetProcessHeap(), 0, bits); } DeleteDC(dc); } if (flags & LR_COPYDELETEORG) { DeleteObject(hnd); } } HeapFree(GetProcessHeap(), 0, bi); return res; } case IMAGE_ICON: return CURSORICON_ExtCopy(hnd,type, desiredx, desiredy, flags); case IMAGE_CURSOR: /* Should call CURSORICON_ExtCopy but more testing * needs to be done before we change this */ if (flags) FIXME("Flags are ignored\n"); return CopyCursor(hnd); } return 0; } /****************************************************************************** * LoadBitmapW (USER32.@) Loads bitmap from the executable file * * RETURNS * Success: Handle to specified bitmap * Failure: NULL */ HBITMAP WINAPI LoadBitmapW( HINSTANCE instance, /* [in] Handle to application instance */ LPCWSTR name) /* [in] Address of bitmap resource name */ { return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 ); } /********************************************************************** * LoadBitmapA (USER32.@) * * See LoadBitmapW. */ HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name ) { return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 ); }