dlls/shell32/iconcache.c

   1 /*
   2  *      shell icon cache (SIC)
   3  *
   4  */
   5 #include <string.h>
   6 #include <sys/types.h>
   7 #include <unistd.h>
   8 #include "winbase.h"
   9 #include "windef.h"
  10 #include "wingdi.h"
  11 #include "winuser.h"
  12 #include "wine/winuser16.h"
  13 #include "wine/winbase16.h"
  14 #include "neexe.h"
  15 #include "cursoricon.h"
  16 #include "module.h"
  17 #include "heap.h"
  18 #include "debugtools.h"
  19 #include "winversion.h"
  20
  21 #include "shellapi.h"
  22 #include "pidl.h"
  23 #include "shell32_main.h"
  24
  25 DEFAULT_DEBUG_CHANNEL(shell)
  26
  27 #include "pshpack1.h"
  28
  29 typedef struct
  30 {
  31     BYTE        bWidth;          /* Width, in pixels, of the image      */
  32     BYTE        bHeight;         /* Height, in pixels, of the image     */
  33     BYTE        bColorCount;     /* Number of colors in image (0 if >=8bpp) */
  34     BYTE        bReserved;       /* Reserved ( must be 0)               */
  35     WORD        wPlanes;         /* Color Planes                        */
  36     WORD        wBitCount;       /* Bits per pixel                      */
  37     DWORD       dwBytesInRes;    /* How many bytes in this resource?    */
  38     DWORD       dwImageOffset;   /* Where in the file is this image?    */
  39 } icoICONDIRENTRY, *LPicoICONDIRENTRY;
  40
  41 typedef struct
  42 {
  43     WORD            idReserved;   /* Reserved (must be 0) */
  44     WORD            idType;       /* Resource Type (RES_ICON or RES_CURSOR) */
  45     WORD            idCount;      /* How many images */
  46     icoICONDIRENTRY idEntries[1]; /* An entry for each image (idCount of 'em) */
  47 } icoICONDIR, *LPicoICONDIR;
  48
  49 #include "poppack.h"
  50
  51 #if 0
  52 static void dumpIcoDirEnty ( LPicoICONDIRENTRY entry )
  53 {
  54         TRACE("width = 0x%08x height = 0x%08x\n", entry->bWidth, entry->bHeight);
  55         TRACE("colors = 0x%08x planes = 0x%08x\n", entry->bColorCount, entry->wPlanes);
  56         TRACE("bitcount = 0x%08x bytesinres = 0x%08lx offset = 0x%08lx\n",
  57         entry->wBitCount, entry->dwBytesInRes, entry->dwImageOffset);
  58 }
  59 static void dumpIcoDir ( LPicoICONDIR entry )
  60 {
  61         TRACE("type = 0x%08x count = 0x%08x\n", entry->idType, entry->idCount);
  62 }
  63 #endif
  64 /*************************************************************************
  65  *                              SHELL_GetResourceTable
  66  */
  67 static DWORD SHELL_GetResourceTable(HFILE hFile, LPBYTE *retptr)
  68 {       IMAGE_DOS_HEADER        mz_header;
  69         char                    magic[4];
  70         int                     size;
  71
  72         TRACE("0x%08x %p\n", hFile, retptr);
  73
  74         *retptr = NULL;
  75         _llseek( hFile, 0, SEEK_SET );
  76         if ((_lread(hFile,&mz_header,sizeof(mz_header)) != sizeof(mz_header)) || (mz_header.e_magic != IMAGE_DOS_SIGNATURE))
  77         { if (mz_header.e_cblp == 1)    /* .ICO file ? */
  78           { *retptr = (LPBYTE)-1;       /* ICONHEADER.idType, must be 1 */
  79             return 1;
  80           }
  81           else
  82             return 0; /* failed */
  83         }
  84         _llseek( hFile, mz_header.e_lfanew, SEEK_SET );
  85
  86         if (_lread( hFile, magic, sizeof(magic) ) != sizeof(magic))
  87           return 0;
  88
  89         _llseek( hFile, mz_header.e_lfanew, SEEK_SET);
  90
  91         if (*(DWORD*)magic  == IMAGE_NT_SIGNATURE)
  92           return IMAGE_NT_SIGNATURE;
  93
  94         if (*(WORD*)magic == IMAGE_OS2_SIGNATURE)
  95         { IMAGE_OS2_HEADER      ne_header;
  96           LPBYTE                pTypeInfo = (LPBYTE)-1;
  97
  98           if (_lread(hFile,&ne_header,sizeof(ne_header))!=sizeof(ne_header))
  99             return 0;
 100
 101           if (ne_header.ne_magic != IMAGE_OS2_SIGNATURE)
 102             return 0;
 103
 104           size = ne_header.ne_restab - ne_header.ne_rsrctab;
 105
 106           if( size > sizeof(NE_TYPEINFO) )
 107           { pTypeInfo = (BYTE*)HeapAlloc( GetProcessHeap(), 0, size);
 108             if( pTypeInfo )
 109             { _llseek(hFile, mz_header.e_lfanew+ne_header.ne_rsrctab, SEEK_SET);
 110               if( _lread( hFile, (char*)pTypeInfo, size) != size )
 111               { HeapFree( GetProcessHeap(), 0, pTypeInfo);
 112                 pTypeInfo = NULL;
 113               }
 114             }
 115           }
 116           *retptr = pTypeInfo;
 117           return IMAGE_OS2_SIGNATURE;
 118         }
 119         return 0; /* failed */
 120 }
 121 /*************************************************************************
 122  *                      SHELL_LoadResource
 123  */
 124 static BYTE * SHELL_LoadResource( HFILE hFile, NE_NAMEINFO* pNInfo, WORD sizeShift, ULONG *uSize)
 125 {       BYTE*  ptr;
 126
 127         TRACE("0x%08x %p 0x%08x\n", hFile, pNInfo, sizeShift);
 128
 129         *uSize = (DWORD)pNInfo->length << sizeShift;
 130         if( (ptr = (BYTE*)HeapAlloc(GetProcessHeap(),0, *uSize) ))
 131         { _llseek( hFile, (DWORD)pNInfo->offset << sizeShift, SEEK_SET);
 132           _lread( hFile, (char*)ptr, pNInfo->length << sizeShift);
 133           return ptr;
 134         }
 135         return 0;
 136 }
 137
 138 /*************************************************************************
 139  *                      ICO_LoadIcon
 140  */
 141 static BYTE * ICO_LoadIcon( HFILE hFile, LPicoICONDIRENTRY lpiIDE, ULONG *uSize)
 142 {       BYTE*  ptr;
 143
 144         TRACE("0x%08x %p\n", hFile, lpiIDE);
 145
 146         *uSize = lpiIDE->dwBytesInRes;
 147         if( (ptr = (BYTE*)HeapAlloc(GetProcessHeap(),0, *uSize)) )
 148         { _llseek( hFile, lpiIDE->dwImageOffset, SEEK_SET);
 149           _lread( hFile, (char*)ptr, lpiIDE->dwBytesInRes);
 150           return ptr;
 151         }
 152
 153         return 0;
 154 }
 155
 156 /*************************************************************************
 157  *                      ICO_GetIconDirectory
 158  *
 159  * Reads .ico file and build phony ICONDIR struct
 160  * see http://www.microsoft.com/win32dev/ui/icons.htm
 161  */
 162 #define HEADER_SIZE             (sizeof(CURSORICONDIR) - sizeof (CURSORICONDIRENTRY))
 163 #define HEADER_SIZE_FILE        (sizeof(icoICONDIR) - sizeof (icoICONDIRENTRY))
 164
 165 static BYTE * ICO_GetIconDirectory( HFILE hFile, LPicoICONDIR* lplpiID, ULONG *uSize )
 166 {       CURSORICONDIR   lpcid;  /* icon resource in resource-dir format */
 167         LPicoICONDIR    lpiID;  /* icon resource in file format */
 168         int             i;
 169
 170         TRACE("0x%08x %p\n", hFile, lplpiID);
 171
 172         _llseek( hFile, 0, SEEK_SET );
 173         if( _lread(hFile,(char*)&lpcid, HEADER_SIZE_FILE) != HEADER_SIZE_FILE )
 174           return 0;
 175
 176         if( lpcid.idReserved || (lpcid.idType != 1) || (!lpcid.idCount) )
 177           return 0;
 178
 179         i = lpcid.idCount * sizeof(icoICONDIRENTRY);
 180         lpiID = (LPicoICONDIR)HeapAlloc( GetProcessHeap(), 0, HEADER_SIZE_FILE + i);
 181
 182         if( _lread(hFile,(char*)lpiID->idEntries,i) == i )
 183         { CURSORICONDIR * lpID;                 /* icon resource in resource format */
 184           *uSize = lpcid.idCount * sizeof(CURSORICONDIRENTRY) + HEADER_SIZE;
 185           if( (lpID = (CURSORICONDIR*)HeapAlloc(GetProcessHeap(),0, *uSize) ))
 186           {
 187             /* copy the header */
 188             lpID->idReserved    = lpiID->idReserved = 0;
 189             lpID->idType        = lpiID->idType = 1;
 190             lpID->idCount       = lpiID->idCount = lpcid.idCount;
 191
 192             /* copy the entrys */
 193             for( i=0; i < lpiID->idCount; i++ )
 194             { memcpy((void*)&(lpID->idEntries[i]),(void*)&(lpiID->idEntries[i]), sizeof(CURSORICONDIRENTRY) - 2);
 195               lpID->idEntries[i].wResId = i;
 196             }
 197
 198             *lplpiID = lpiID;
 199             return (BYTE *)lpID;
 200           }
 201         }
 202         /* fail */
 203
 204         HeapFree( GetProcessHeap(), 0, lpiID);
 205         return 0;
 206 }
 207
 208 /*************************************************************************
 209  *
 210  * returns
 211  *  failure:0; success: icon handle or nr of icons (nIconIndex-1)
 212  */
 213 HICON WINAPI ICO_ExtractIconEx(LPCSTR lpszExeFileName, HICON * RetPtr, UINT nIconIndex, UINT n, UINT cxDesired, UINT cyDesired )
 214 {       HGLOBAL         hRet = 0;
 215         LPBYTE          pData;
 216         OFSTRUCT        ofs;
 217         DWORD           sig;
 218         HFILE           hFile = OpenFile( lpszExeFileName, &ofs, OF_READ );
 219         UINT16          iconDirCount = 0,iconCount = 0;
 220         LPBYTE          peimage;
 221         HANDLE          fmapping;
 222         ULONG           uSize;
 223
 224         TRACE("(file %s,start %d,extract %d\n", lpszExeFileName, nIconIndex, n);
 225
 226         if( hFile == HFILE_ERROR || (nIconIndex!=-1 && !n) )
 227           return hRet;
 228
 229         sig = SHELL_GetResourceTable(hFile,&pData);
 230
 231 /* ico file */
 232         if( sig==IMAGE_OS2_SIGNATURE || sig==1 ) /* .ICO file */
 233         { BYTE          *pCIDir = 0;
 234           NE_TYPEINFO   *pTInfo = (NE_TYPEINFO*)(pData + 2);
 235           NE_NAMEINFO   *pIconStorage = NULL;
 236           NE_NAMEINFO   *pIconDir = NULL;
 237           LPicoICONDIR  lpiID = NULL;
 238
 239           TRACE("-- OS2/icon Signature (0x%08lx)\n", sig);
 240
 241           if( pData == (BYTE*)-1 )
 242           { pCIDir = ICO_GetIconDirectory(hFile, &lpiID, &uSize);       /* check for .ICO file */
 243             if( pCIDir )
 244             { iconDirCount = 1; iconCount = lpiID->idCount;
 245               TRACE("-- icon found %p 0x%08lx 0x%08x 0x%08x\n", pCIDir, uSize, iconDirCount, iconCount);
 246             }
 247           }
 248           else while( pTInfo->type_id && !(pIconStorage && pIconDir) )
 249           { if( pTInfo->type_id == NE_RSCTYPE_GROUP_ICON )      /* find icon directory and icon repository */
 250             { iconDirCount = pTInfo->count;
 251               pIconDir = ((NE_NAMEINFO*)(pTInfo + 1));
 252               TRACE("\tfound directory - %i icon families\n", iconDirCount);
 253             }
 254             if( pTInfo->type_id == NE_RSCTYPE_ICON )
 255             { iconCount = pTInfo->count;
 256               pIconStorage = ((NE_NAMEINFO*)(pTInfo + 1));
 257               TRACE("\ttotal icons - %i\n", iconCount);
 258             }
 259             pTInfo = (NE_TYPEINFO *)((char*)(pTInfo+1)+pTInfo->count*sizeof(NE_NAMEINFO));
 260           }
 261
 262           if( (pIconStorage && pIconDir) || lpiID )       /* load resources and create icons */
 263           { if( nIconIndex == (UINT16)-1 )
 264             { RetPtr[0] = iconDirCount;
 265             }
 266             else if( nIconIndex < iconDirCount )
 267             { UINT16   i, icon;
 268               if( n > iconDirCount - nIconIndex )
 269                 n = iconDirCount - nIconIndex;
 270
 271               for( i = nIconIndex; i < nIconIndex + n; i++ )
 272               { /* .ICO files have only one icon directory */
 273
 274                 if( lpiID == NULL )     /* *.ico */
 275                   pCIDir = SHELL_LoadResource( hFile, pIconDir + i, *(WORD*)pData, &uSize );
 276                 RetPtr[i-nIconIndex] = pLookupIconIdFromDirectoryEx( pCIDir, TRUE,  GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), 0);
 277                 HeapFree(GetProcessHeap(), 0, pCIDir);
 278               }
 279
 280               for( icon = nIconIndex; icon < nIconIndex + n; icon++ )
 281               { pCIDir = NULL;
 282                 if( lpiID )
 283                 { pCIDir = ICO_LoadIcon( hFile, lpiID->idEntries + RetPtr[icon-nIconIndex], &uSize);
 284                 }
 285                 else
 286                 { for( i = 0; i < iconCount; i++ )
 287                   { if( pIconStorage[i].id == (RetPtr[icon-nIconIndex] | 0x8000) )
 288                     { pCIDir = SHELL_LoadResource( hFile, pIconStorage + i,*(WORD*)pData, &uSize );
 289                     }
 290                   }
 291                 }
 292                 if( pCIDir )
 293                 { RetPtr[icon-nIconIndex] = (HICON) pCreateIconFromResourceEx(pCIDir,uSize,TRUE,0x00030000, cxDesired, cyDesired, LR_DEFAULTCOLOR);
 294                 }
 295                 else
 296                 { RetPtr[icon-nIconIndex] = 0;
 297                 }
 298               }
 299             }
 300           }
 301           if( lpiID )
 302             HeapFree( GetProcessHeap(), 0, lpiID);
 303           else
 304             HeapFree( GetProcessHeap(), 0, pData);
 305         }
 306 /* end ico file */
 307
 308 /* exe/dll */
 309         if( sig == IMAGE_NT_SIGNATURE)
 310         { LPBYTE                idata,igdata;
 311           PIMAGE_DOS_HEADER     dheader;
 312           PIMAGE_NT_HEADERS     pe_header;
 313           PIMAGE_SECTION_HEADER pe_sections;
 314           PIMAGE_RESOURCE_DIRECTORY     rootresdir,iconresdir,icongroupresdir;
 315           PIMAGE_RESOURCE_DATA_ENTRY    idataent,igdataent;
 316           PIMAGE_RESOURCE_DIRECTORY_ENTRY       xresent;
 317           int                   i,j;
 318
 319           if ( !(fmapping = CreateFileMappingA(hFile,NULL,PAGE_READONLY|SEC_COMMIT,0,0,NULL)))
 320           { WARN("failed to create filemap.\n");        /* FIXME, INVALID_HANDLE_VALUE? */
 321             goto end_2;         /* failure */
 322           }
 323
 324           if ( !(peimage = MapViewOfFile(fmapping,FILE_MAP_READ,0,0,0)))
 325           { WARN("failed to mmap filemap.\n");
 326             goto end_2;         /* failure */
 327           }
 328
 329           dheader = (PIMAGE_DOS_HEADER)peimage;
 330           pe_header = (PIMAGE_NT_HEADERS)(peimage+dheader->e_lfanew);     /* it is a pe header, SHELL_GetResourceTable checked that */
 331           pe_sections = (PIMAGE_SECTION_HEADER)(((char*)pe_header)+sizeof(*pe_header)); /* probably makes problems with short PE headers...*/
 332           rootresdir = NULL;
 333
 334           for (i=0;i<pe_header->FileHeader.NumberOfSections;i++)
 335           { if (pe_sections[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
 336               continue;
 337             /* FIXME: doesn't work when the resources are not in a seperate section */
 338             if (pe_sections[i].VirtualAddress == pe_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress)
 339             { rootresdir = (PIMAGE_RESOURCE_DIRECTORY)((char*)peimage+pe_sections[i].PointerToRawData);
 340               break;
 341             }
 342           }
 343
 344           if (!rootresdir)
 345           { WARN("haven't found section for resource directory.\n");
 346             goto end_3;         /* failure */
 347           }
 348   /* search the group icon dir*/
 349           if (!(icongroupresdir = GetResDirEntryW(rootresdir,RT_GROUP_ICONW, (DWORD)rootresdir,FALSE)))
 350           { WARN("No Icongroupresourcedirectory!\n");
 351             goto end_3;         /* failure */
 352           }
 353           iconDirCount = icongroupresdir->NumberOfNamedEntries+icongroupresdir->NumberOfIdEntries;
 354
 355   /* number of icons requested */
 356           if( nIconIndex == -1 )
 357           { hRet = iconDirCount;
 358             goto end_3;         /* success */
 359           }
 360
 361           if (nIconIndex >= iconDirCount)
 362           { WARN("nIconIndex %d is larger than iconDirCount %d\n",nIconIndex,iconDirCount);
 363             goto end_3;         /* failure */
 364           }
 365
 366           xresent = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(icongroupresdir+1);       /* caller just wanted the number of entries */
 367
 368           if( n > iconDirCount - nIconIndex )   /* assure we don't get too much ... */
 369           { n = iconDirCount - nIconIndex;
 370           }
 371
 372           xresent = xresent+nIconIndex;         /* starting from specified index ... */
 373
 374           for (i=0;i<n;i++,xresent++)
 375           { PIMAGE_RESOURCE_DIRECTORY   resdir;
 376
 377             /* go down this resource entry, name */
 378             resdir = (PIMAGE_RESOURCE_DIRECTORY)((DWORD)rootresdir+(xresent->u2.s.OffsetToDirectory));
 379
 380             /* default language (0) */
 381             resdir = GetResDirEntryW(resdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
 382             igdataent = (PIMAGE_RESOURCE_DATA_ENTRY)resdir;
 383
 384             /* lookup address in mapped image for virtual address */
 385             igdata = NULL;
 386
 387             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
 388             { if (igdataent->OffsetToData < pe_sections[j].VirtualAddress)
 389                 continue;
 390               if (igdataent->OffsetToData+igdataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
 391                 continue;
 392               igdata = peimage+(igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
 393             }
 394
 395             if (!igdata)
 396             { WARN("no matching real address for icongroup!\n");
 397               goto end_3;       /* failure */
 398             }
 399             RetPtr[i] = (HICON)pLookupIconIdFromDirectoryEx(igdata, TRUE, cxDesired, cyDesired, LR_DEFAULTCOLOR);
 400           }
 401
 402           if (!(iconresdir=GetResDirEntryW(rootresdir,RT_ICONW,(DWORD)rootresdir,FALSE)))
 403           { WARN("No Iconresourcedirectory!\n");
 404             goto end_3;         /* failure */
 405           }
 406
 407           for (i=0;i<n;i++)
 408           { PIMAGE_RESOURCE_DIRECTORY   xresdir;
 409             xresdir = GetResDirEntryW(iconresdir,(LPWSTR)(DWORD)RetPtr[i],(DWORD)rootresdir,FALSE);
 410             xresdir = GetResDirEntryW(xresdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
 411             idataent = (PIMAGE_RESOURCE_DATA_ENTRY)xresdir;
 412             idata = NULL;
 413
 414             /* map virtual to address in image */
 415             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
 416             { if (idataent->OffsetToData < pe_sections[j].VirtualAddress)
 417                 continue;
 418               if (idataent->OffsetToData+idataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
 419                 continue;
 420               idata = peimage+(idataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
 421             }
 422             if (!idata)
 423             { WARN("no matching real address found for icondata!\n");
 424               RetPtr[i]=0;
 425               continue;
 426             }
 427             RetPtr[i] = (HICON) pCreateIconFromResourceEx(idata,idataent->Size,TRUE,0x00030000, cxDesired, cyDesired, LR_DEFAULTCOLOR);
 428           }
 429           hRet = RetPtr[0];     /* return first icon */
 430           goto end_3;           /* sucess */
 431         }
 432         goto end_1;             /* unknown filetype */
 433
 434 /* cleaning up (try & catch would be nicer:-) ) */
 435 end_3:  UnmapViewOfFile(peimage);       /* success */
 436 end_2:  CloseHandle(fmapping);
 437 end_1:  _lclose( hFile);
 438         return hRet;
 439 }
 440
 441 /********************** THE ICON CACHE ********************************/
 442
 443 #define INVALID_INDEX -1
 444
 445 typedef struct
 446 {       LPCSTR sSourceFile;     /* file (not path!) containing the icon */
 447         DWORD dwSourceIndex;    /* index within the file, if it is a resoure ID it will be negated */
 448         DWORD dwListIndex;      /* index within the iconlist */
 449         DWORD dwFlags;          /* GIL_* flags */
 450         DWORD dwAccessTime;
 451 } SIC_ENTRY, * LPSIC_ENTRY;
 452
 453 static HDPA             sic_hdpa = 0;
 454 static CRITICAL_SECTION SHELL32_SicCS = CRITICAL_SECTION_INIT;
 455
 456 /*****************************************************************************
 457  * SIC_CompareEntrys                    [called by comctl32.dll]
 458  *
 459  * NOTES
 460  *  Callback for DPA_Search
 461  */
 462 INT CALLBACK SIC_CompareEntrys( LPVOID p1, LPVOID p2, LPARAM lparam)
 463 {       TRACE("%p %p\n", p1, p2);
 464
 465         if (((LPSIC_ENTRY)p1)->dwSourceIndex != ((LPSIC_ENTRY)p2)->dwSourceIndex) /* first the faster one*/
 466           return 1;
 467
 468         if (strcasecmp(((LPSIC_ENTRY)p1)->sSourceFile,((LPSIC_ENTRY)p2)->sSourceFile))
 469           return 1;
 470
 471         return 0;
 472 }
 473 /*****************************************************************************
 474  * SIC_IconAppend                       [internal]
 475  *
 476  * NOTES
 477  *  appends a icon pair to the end of the cache
 478  */
 479 static INT SIC_IconAppend (LPCSTR sSourceFile, INT dwSourceIndex, HICON hSmallIcon, HICON hBigIcon)
 480 {       LPSIC_ENTRY lpsice;
 481         INT ret, index, index1;
 482
 483         TRACE("%s %i %x %x\n", sSourceFile, dwSourceIndex, hSmallIcon ,hBigIcon);
 484
 485         lpsice = (LPSIC_ENTRY) SHAlloc (sizeof (SIC_ENTRY));
 486
 487         lpsice->sSourceFile = HEAP_strdupA (GetProcessHeap(), 0, PathFindFilenameA(sSourceFile));
 488         lpsice->dwSourceIndex = dwSourceIndex;
 489
 490         EnterCriticalSection(&SHELL32_SicCS);
 491
 492         index = pDPA_InsertPtr(sic_hdpa, 0x7fff, lpsice);
 493         if ( INVALID_INDEX == index )
 494         {
 495           SHFree(lpsice);
 496           ret = INVALID_INDEX;
 497         }
 498         else
 499         {
 500           index = pImageList_AddIcon (ShellSmallIconList, hSmallIcon);
 501           index1= pImageList_AddIcon (ShellBigIconList, hBigIcon);
 502
 503           if (index!=index1)
 504           {
 505             FIXME("iconlists out of sync 0x%x 0x%x\n", index, index1);
 506           }
 507           lpsice->dwListIndex = index;
 508           ret = lpsice->dwListIndex;
 509         }
 510
 511         LeaveCriticalSection(&SHELL32_SicCS);
 512         return ret;
 513 }
 514 /****************************************************************************
 515  * SIC_LoadIcon                         [internal]
 516  *
 517  * NOTES
 518  *  gets small/big icon by number from a file
 519  */
 520 static INT SIC_LoadIcon (LPCSTR sSourceFile, INT dwSourceIndex)
 521 {       HICON   hiconLarge=0;
 522         HICON   hiconSmall=0;
 523
 524         ICO_ExtractIconEx(sSourceFile, &hiconLarge, dwSourceIndex, 1, 32, 32  );
 525         ICO_ExtractIconEx(sSourceFile, &hiconSmall, dwSourceIndex, 1, 16, 16  );
 526
 527
 528         if ( !hiconLarge ||  !hiconSmall)
 529         {
 530           WARN("failure loading icon %i from %s (%x %x)\n", dwSourceIndex, sSourceFile, hiconLarge, hiconSmall);
 531           return -1;
 532         }
 533         return SIC_IconAppend (sSourceFile, dwSourceIndex, hiconSmall, hiconLarge);
 534 }
 535 /*****************************************************************************
 536  * SIC_GetIconIndex                     [internal]
 537  *
 538  * Parameters
 539  *      sSourceFile     [IN]    filename of file containing the icon
 540  *      index           [IN]    index/resID (negated) in this file
 541  *
 542  * NOTES
 543  *  look in the cache for a proper icon. if not available the icon is taken
 544  *  from the file and cached
 545  */
 546 INT SIC_GetIconIndex (LPCSTR sSourceFile, INT dwSourceIndex )
 547 {       SIC_ENTRY sice;
 548         INT ret, index = INVALID_INDEX;
 549
 550         TRACE("%s %i\n", sSourceFile, dwSourceIndex);
 551
 552         sice.sSourceFile = PathFindFilenameA(sSourceFile);
 553         sice.dwSourceIndex = dwSourceIndex;
 554
 555         EnterCriticalSection(&SHELL32_SicCS);
 556
 557         if (NULL != pDPA_GetPtr (sic_hdpa, 0))
 558         {
 559           index = pDPA_Search (sic_hdpa, &sice, -1L, SIC_CompareEntrys, 0, 0);
 560         }
 561
 562         if ( INVALID_INDEX == index )
 563         {
 564           ret = SIC_LoadIcon (sSourceFile, dwSourceIndex);
 565         }
 566         else
 567         {
 568           TRACE("-- found\n");
 569           ret = ((LPSIC_ENTRY)pDPA_GetPtr(sic_hdpa, index))->dwListIndex;
 570         }
 571
 572         LeaveCriticalSection(&SHELL32_SicCS);
 573         return ret;
 574 }
 575 /****************************************************************************
 576  * SIC_LoadIcon                         [internal]
 577  *
 578  * NOTES
 579  *  retrives the specified icon from the iconcache. if not found try's to load the icon
 580  */
 581 static HICON WINE_UNUSED SIC_GetIcon (LPCSTR sSourceFile, INT dwSourceIndex, BOOL bSmallIcon )
 582 {       INT index;
 583
 584         TRACE("%s %i\n", sSourceFile, dwSourceIndex);
 585
 586         index = SIC_GetIconIndex(sSourceFile, dwSourceIndex);
 587
 588         if (INVALID_INDEX == index)
 589         {
 590           return INVALID_INDEX;
 591         }
 592
 593         if (bSmallIcon)
 594           return pImageList_GetIcon(ShellSmallIconList, index, ILD_NORMAL);
 595         return pImageList_GetIcon(ShellBigIconList, index, ILD_NORMAL);
 596
 597 }
 598 /*****************************************************************************
 599  * SIC_Initialize                       [internal]
 600  *
 601  * NOTES
 602  *  hack to load the resources from the shell32.dll under a different dll name
 603  *  will be removed when the resource-compiler is ready
 604  */
 605 BOOL SIC_Initialize(void)
 606 {
 607         HICON           hSm, hLg;
 608         UINT            index;
 609
 610         TRACE("\n");
 611
 612         if (sic_hdpa)   /* already initialized?*/
 613           return TRUE;
 614
 615         sic_hdpa = pDPA_Create(16);
 616
 617         if (!sic_hdpa)
 618         {
 619           return(FALSE);
 620         }
 621
 622         ShellSmallIconList = pImageList_Create(16,16,ILC_COLORDDB | ILC_MASK,0,0x20);
 623         ShellBigIconList = pImageList_Create(32,32,ILC_COLORDDB | ILC_MASK,0,0x20);
 624
 625         pImageList_SetBkColor(ShellSmallIconList, GetSysColor(COLOR_WINDOW));
 626         pImageList_SetBkColor(ShellBigIconList, GetSysColor(COLOR_WINDOW));
 627
 628         for (index=1; index<39; index++)
 629         {
 630           hSm = LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(index), IMAGE_ICON, 16, 16,LR_SHARED);
 631           hLg = LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(index), IMAGE_ICON, 32, 32,LR_SHARED);
 632
 633           if(!hSm)
 634           {
 635             hSm = LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(0), IMAGE_ICON, 16, 16,LR_SHARED);
 636             hLg = LoadImageA(shell32_hInstance, MAKEINTRESOURCEA(0), IMAGE_ICON, 32, 32,LR_SHARED);
 637           }
 638           SIC_IconAppend ("shell32.dll", index, hSm, hLg);
 639         }
 640
 641         TRACE("hIconSmall=%p hIconBig=%p\n",ShellSmallIconList, ShellBigIconList);
 642
 643         return TRUE;
 644 }
 645 /*************************************************************************
 646  * SIC_Destroy
 647  *
 648  * frees the cache
 649  */
 650 void SIC_Destroy(void)
 651 {
 652         LPSIC_ENTRY lpsice;
 653         int i;
 654
 655         TRACE("\n");
 656
 657         EnterCriticalSection(&SHELL32_SicCS);
 658
 659         if (sic_hdpa && NULL != pDPA_GetPtr (sic_hdpa, 0))
 660         {
 661           for (i=0; i < pDPA_GetPtrCount(sic_hdpa); ++i)
 662           {
 663             lpsice = pDPA_GetPtr(sic_hdpa, i);
 664             SHFree(lpsice);
 665           }
 666           pDPA_Destroy(sic_hdpa);
 667         }
 668
 669         sic_hdpa = NULL;
 670
 671         LeaveCriticalSection(&SHELL32_SicCS);
 672         DeleteCriticalSection(&SHELL32_SicCS);
 673 }
 674 /*************************************************************************
 675  * Shell_GetImageList                   [SHELL32.71]
 676  *
 677  * PARAMETERS
 678  *  imglist[1|2] [OUT] pointer which recive imagelist handles
 679  *
 680  */
 681 BOOL WINAPI Shell_GetImageList(HIMAGELIST * lpBigList, HIMAGELIST * lpSmallList)
 682 {       TRACE("(%p,%p)\n",lpBigList,lpSmallList);
 683         if (lpBigList)
 684         { *lpBigList = ShellBigIconList;
 685         }
 686         if (lpSmallList)
 687         { *lpSmallList = ShellSmallIconList;
 688         }
 689
 690         return TRUE;
 691 }
 692 /*************************************************************************
 693  * PidlToSicIndex                       [INTERNAL]
 694  *
 695  * PARAMETERS
 696  *      sh      [IN]    IShellFolder
 697  *      pidl    [IN]
 698  *      bBigIcon [IN]
 699  *      uFlags  [IN]    GIL_*
 700  *      pIndex  [OUT]   index within the SIC
 701  *
 702  */
 703 BOOL PidlToSicIndex (
 704         IShellFolder * sh,
 705         LPITEMIDLIST pidl,
 706         BOOL bBigIcon,
 707         UINT uFlags,
 708         UINT * pIndex)
 709 {
 710         IExtractIconA   *ei;
 711         char            szIconFile[MAX_PATH];   /* file containing the icon */
 712         INT             iSourceIndex;           /* index or resID(negated) in this file */
 713         BOOL            ret = FALSE;
 714         UINT            dwFlags = 0;
 715
 716         TRACE("sf=%p pidl=%p %s\n", sh, pidl, bBigIcon?"Big":"Small");
 717
 718         if (SUCCEEDED (IShellFolder_GetUIObjectOf(sh, 0, 1, &pidl, &IID_IExtractIconA, 0, (void **)&ei)))
 719         {
 720           if (SUCCEEDED(IExtractIconA_GetIconLocation(ei, uFlags, szIconFile, MAX_PATH, &iSourceIndex, &dwFlags)))
 721           {
 722             *pIndex = SIC_GetIconIndex(szIconFile, iSourceIndex);
 723             ret = TRUE;
 724           }
 725           IExtractIconA_Release(ei);
 726         }
 727
 728         if (INVALID_INDEX == *pIndex)   /* default icon when failed */
 729           *pIndex = 1;
 730
 731         return ret;
 732
 733 }
 734
 735 /*************************************************************************
 736  * SHMapPIDLToSystemImageListIndex      [SHELL32.77]
 737  *
 738  * PARAMETERS
 739  *      sh      [IN]            pointer to an instance of IShellFolder
 740  *      pidl    [IN]
 741  *      pIndex  [OUT][OPTIONAL] SIC index for big icon
 742  *
 743  */
 744 UINT WINAPI SHMapPIDLToSystemImageListIndex(LPSHELLFOLDER sh, LPITEMIDLIST pidl, UINT * pIndex)
 745 {
 746         UINT    Index;
 747
 748         TRACE("(SF=%p,pidl=%p,%p)\n",sh,pidl,pIndex);
 749         pdump(pidl);
 750
 751         if (pIndex)
 752           PidlToSicIndex ( sh, pidl, 1, 0, pIndex);
 753         PidlToSicIndex ( sh, pidl, 0, 0, &Index);
 754         return Index;
 755 }
 756
 757 /*************************************************************************
 758  * Shell_GetCachedImageIndex            [SHELL32.72]
 759  *
 760  */
 761 INT WINAPI Shell_GetCachedImageIndexA(LPCSTR szPath, INT nIndex, BOOL bSimulateDoc)
 762 {
 763         WARN("(%s,%08x,%08x) semi-stub.\n",debugstr_a(szPath), nIndex, bSimulateDoc);
 764         return SIC_GetIconIndex(szPath, nIndex);
 765 }
 766
 767 INT WINAPI Shell_GetCachedImageIndexW(LPCWSTR szPath, INT nIndex, BOOL bSimulateDoc)
 768 {       INT ret;
 769         LPSTR sTemp = HEAP_strdupWtoA (GetProcessHeap(),0,szPath);
 770
 771         WARN("(%s,%08x,%08x) semi-stub.\n",debugstr_w(szPath), nIndex, bSimulateDoc);
 772
 773         ret = SIC_GetIconIndex(sTemp, nIndex);
 774         HeapFree(GetProcessHeap(),0,sTemp);
 775         return ret;
 776 }
 777
 778 INT WINAPI Shell_GetCachedImageIndexAW(LPCVOID szPath, INT nIndex, BOOL bSimulateDoc)
 779 {       if( VERSION_OsIsUnicode())
 780           return Shell_GetCachedImageIndexW(szPath, nIndex, bSimulateDoc);
 781         return Shell_GetCachedImageIndexA(szPath, nIndex, bSimulateDoc);
 782 }
 783
 784 /*************************************************************************
 785  * ExtractIconEx                        [shell32.189]
 786  */
 787 HICON WINAPI ExtractIconExAW ( LPCVOID lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
 788 {       if (VERSION_OsIsUnicode())
 789           return ExtractIconExW ( lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 790         return ExtractIconExA ( lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 791 }
 792 /*************************************************************************
 793  * ExtractIconExA                       [shell32.190]
 794  * RETURNS
 795  *  0 no icon found
 796  *  1 file is not valid
 797  *  HICON handle of a icon (phiconLarge/Small == NULL)
 798  */
 799 HICON WINAPI ExtractIconExA ( LPCSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
 800 {       HICON ret=0;
 801
 802         TRACE("file=%s idx=%i %p %p num=%i\n", lpszFile, nIconIndex, phiconLarge, phiconSmall, nIcons );
 803
 804         if (nIconIndex==-1)     /* Number of icons requested */
 805           return ICO_ExtractIconEx(lpszFile, NULL, -1, 0, 0, 0  );
 806
 807
 808         if (phiconLarge)
 809         { ret = ICO_ExtractIconEx(lpszFile, phiconLarge, nIconIndex, nIcons, 32, 32  );
 810           if ( nIcons==1)
 811           { ret = phiconLarge[0];
 812           }
 813         }
 814
 815         /* if no pointers given and one icon expected, return the handle directly*/
 816         if (!phiconLarge && ! phiconSmall && nIcons==1 )
 817           phiconSmall = &ret;
 818
 819         if (phiconSmall)
 820         { ret = ICO_ExtractIconEx(lpszFile, phiconSmall, nIconIndex, nIcons, 16, 16  );
 821           if ( nIcons==1 )
 822           { ret = phiconSmall[0];
 823           }
 824         }
 825
 826         return ret;
 827 }
 828 /*************************************************************************
 829  * ExtractIconExW                       [shell32.191]
 830  */
 831 HICON WINAPI ExtractIconExW ( LPCWSTR lpszFile, INT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIcons )
 832 {       LPSTR sFile;
 833         DWORD ret;
 834
 835         TRACE("file=%s idx=%i %p %p num=%i\n", debugstr_w(lpszFile), nIconIndex, phiconLarge, phiconSmall, nIcons );
 836
 837         sFile = HEAP_strdupWtoA (GetProcessHeap(),0,lpszFile);
 838         ret = ExtractIconExA ( sFile, nIconIndex, phiconLarge, phiconSmall, nIcons);
 839         HeapFree(GetProcessHeap(),0,sFile);
 840         return ret;
 841 }