exticon.c

winNT技术操作系统,国外开放的原代码和LIUX一样

/*
 *	icon extracting
 *
 * taken and slightly changed from shell
 * this should replace the icon extraction code in shell32 and shell16 once
 * it needs a serious test for compliance with the native API
 *
 * Copyright 2000 Juergen Schmied
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <user32.h>

#include <wine/debug.h>

/* Start of Hack section */

WINE_DEFAULT_DEBUG_CHANNEL(icon);

#include "pshpack1.h"

typedef struct
{
    BYTE        bWidth;          /* Width, in pixels, of the image	*/
    BYTE        bHeight;         /* Height, in pixels, of the image	*/
    BYTE        bColorCount;     /* Number of colors in image (0 if >=8bpp) */
    BYTE        bReserved;       /* Reserved ( must be 0)		*/
    WORD        wPlanes;         /* Color Planes			*/
    WORD        wBitCount;       /* Bits per pixel			*/
    DWORD       dwBytesInRes;    /* How many bytes in this resource?	*/
    DWORD       dwImageOffset;   /* Where in the file is this image?	*/
} icoICONDIRENTRY, *LPicoICONDIRENTRY;

typedef struct
{
    WORD            idReserved;   /* Reserved (must be 0) */
    WORD            idType;       /* Resource Type (RES_ICON or RES_CURSOR) */
    WORD            idCount;      /* How many images */
    icoICONDIRENTRY idEntries[1]; /* An entry for each image (idCount of 'em) */
} icoICONDIR, *LPicoICONDIR;

#include "poppack.h"
#if 0
static void dumpIcoDirEnty ( LPicoICONDIRENTRY entry )
{
	TRACE("width = 0x%08x height = 0x%08x\n", entry->bWidth, entry->bHeight);
	TRACE("colors = 0x%08x planes = 0x%08x\n", entry->bColorCount, entry->wPlanes);
	TRACE("bitcount = 0x%08x bytesinres = 0x%08lx offset = 0x%08lx\n",
	entry->wBitCount, entry->dwBytesInRes, entry->dwImageOffset);
}
static void dumpIcoDir ( LPicoICONDIR entry )
{
	TRACE("type = 0x%08x count = 0x%08x\n", entry->idType, entry->idCount);
}
#endif

/**********************************************************************
 *  find_entry_by_id
 *
 * Find an entry by id in a resource directory
 * Copied from loader/pe_resource.c (FIXME: should use exported resource functions)
 */
static const IMAGE_RESOURCE_DIRECTORY *find_entry_by_id( const IMAGE_RESOURCE_DIRECTORY *dir,
                                                         WORD id, const void *root )
{
    const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
    int min, max, pos;

    entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
    min = dir->NumberOfNamedEntries;
    max = min + dir->NumberOfIdEntries - 1;
    while (min <= max)
    {
        pos = (min + max) / 2;
        if (entry[pos].Id == id)
            return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry[pos].OffsetToDirectory);
        if (entry[pos].Id > id) max = pos - 1;
        else min = pos + 1;
    }
    return NULL;
}

/**********************************************************************
 *  find_entry_default
 *
 * Find a default entry in a resource directory
 * Copied from loader/pe_resource.c (FIXME: should use exported resource functions)
 */
static const IMAGE_RESOURCE_DIRECTORY *find_entry_default( const IMAGE_RESOURCE_DIRECTORY *dir,
                                                           const void *root )
{
    const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
    entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
    return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry->OffsetToDirectory);
}

/*************************************************************************
 *				USER32_GetResourceTable
 */
static DWORD USER32_GetResourceTable(LPBYTE peimage,DWORD pesize,LPBYTE *retptr)
{
	IMAGE_DOS_HEADER	* mz_header;

	TRACE("%p %p\n", peimage, retptr);

	*retptr = NULL;

	mz_header = (IMAGE_DOS_HEADER*) peimage;

	if (mz_header->e_magic != IMAGE_DOS_SIGNATURE)
	{
	  if (mz_header->e_cblp == 1)	/* .ICO file ? */
	  {
	    *retptr = (LPBYTE)-1;	/* ICONHEADER.idType, must be 1 */
	    return 1;
	  }
	  else
	    return 0; /* failed */
	}
	if (mz_header->e_lfanew >= pesize) {
	    return 0; /* failed, happens with PKZIP DOS Exes for instance. */
	}
	if (*((DWORD*)(peimage + mz_header->e_lfanew)) == IMAGE_NT_SIGNATURE )
	  return IMAGE_NT_SIGNATURE;
#if 0
	if (*((WORD*)(peimage + mz_header->e_lfanew)) == IMAGE_OS2_SIGNATURE )
	{
	  IMAGE_OS2_HEADER	* ne_header;

	  ne_header = (IMAGE_OS2_HEADER*)(peimage + mz_header->e_lfanew);

	  if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE)
	    return 0;

	  if( (ne_header->ne_restab - ne_header->ne_rsrctab) <= sizeof(NE_TYPEINFO) )
	    *retptr = (LPBYTE)-1;
	  else
	    *retptr = peimage + mz_header->e_lfanew + ne_header->ne_rsrctab;

	  return IMAGE_OS2_SIGNATURE;
	}
#endif
	return 0; /* failed */
}
#if 0
/*************************************************************************
 *			USER32_LoadResource
 */
static BYTE * USER32_LoadResource( LPBYTE peimage, NE_NAMEINFO* pNInfo, WORD sizeShift, ULONG *uSize)
{
	TRACE("%p %p 0x%08x\n", peimage, pNInfo, sizeShift);

	*uSize = (DWORD)pNInfo->length << sizeShift;
	return peimage + ((DWORD)pNInfo->offset << sizeShift);
}

/*************************************************************************
 *                      ICO_LoadIcon
 */
static BYTE * ICO_LoadIcon( LPBYTE peimage, LPicoICONDIRENTRY lpiIDE, ULONG *uSize)
{
	TRACE("%p %p\n", peimage, lpiIDE);

	*uSize = lpiIDE->dwBytesInRes;
	return peimage + lpiIDE->dwImageOffset;
}

/*************************************************************************
 *                      ICO_GetIconDirectory
 *
 * Reads .ico file and build phony ICONDIR struct
 * see http://www.microsoft.com/win32dev/ui/icons.htm
 */
#define HEADER_SIZE		(sizeof(CURSORICONDIR) - sizeof (CURSORICONDIRENTRY))
#define HEADER_SIZE_FILE	(sizeof(icoICONDIR) - sizeof (icoICONDIRENTRY))

static BYTE * ICO_GetIconDirectory( LPBYTE peimage, LPicoICONDIR* lplpiID, ULONG *uSize )
{
	CURSORICONDIR	* lpcid;	/* icon resource in resource-dir format */
	CURSORICONDIR	* lpID;		/* icon resource in resource format */
	int		i;

	TRACE("%p %p\n", peimage, lplpiID);

	lpcid = (CURSORICONDIR*)peimage;

	if( lpcid->idReserved || (lpcid->idType != 1) || (!lpcid->idCount) )
	  return 0;

	/* allocate the phony ICONDIR structure */
	*uSize = lpcid->idCount * sizeof(CURSORICONDIRENTRY) + HEADER_SIZE;
	if( (lpID = (CURSORICONDIR*)HeapAlloc(GetProcessHeap(),0, *uSize) ))
	{
	  /* copy the header */
	  lpID->idReserved = lpcid->idReserved;
	  lpID->idType = lpcid->idType;
	  lpID->idCount = lpcid->idCount;

	  /* copy the entries */
	  for( i=0; i < lpcid->idCount; i++ )
	  {
	    memcpy((void*)&(lpID->idEntries[i]),(void*)&(lpcid->idEntries[i]), sizeof(CURSORICONDIRENTRY) - 2);
	    lpID->idEntries[i].wResId = i;
	  }

	  *lplpiID = (LPicoICONDIR)peimage;
	  return (BYTE *)lpID;
	}
	return 0;
}
#endif
/*************************************************************************
 *	ICO_ExtractIconExW		[internal]
 *
 * NOTES
 *  nIcons = 0: returns number of Icons in file
 *
 * returns
 *  invalid file: -1
 *  failure:0;
 *  success: number of icons in file (nIcons = 0) or nr of icons retrieved
 */
static UINT ICO_ExtractIconExW(
	LPCWSTR lpszExeFileName,
	HICON * RetPtr,
	INT nIconIndex,
	UINT nIcons,
	UINT cxDesired,
	UINT cyDesired,
	UINT *pIconId,
	UINT flags)
{
	UINT		ret = 0;
	UINT		cx1, cx2, cy1, cy2;
	LPBYTE		pData;
	DWORD		sig;
	HANDLE		hFile;
	UINT16		iconDirCount = 0; //,iconCount = 0;
	LPBYTE		peimage;
	HANDLE		fmapping;
	//ULONG		uSize;
	DWORD		fsizeh,fsizel;
        WCHAR		szExePath[MAX_PATH];
        DWORD		dwSearchReturn;

	TRACE("%s, %d, %d %p 0x%08x\n", debugstr_w(lpszExeFileName), nIconIndex, nIcons, pIconId, flags);

        dwSearchReturn = SearchPathW(NULL, lpszExeFileName, NULL, sizeof(szExePath) / sizeof(szExePath[0]), szExePath, NULL);
        if ((dwSearchReturn == 0) || (dwSearchReturn > sizeof(szExePath) / sizeof(szExePath[0])))
        {
            WARN("File %s not found or path too long\n", debugstr_w(lpszExeFileName));
            return -1;
        }

	hFile = CreateFileW(szExePath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
	if (hFile == INVALID_HANDLE_VALUE) return ret;
	fsizel = GetFileSize(hFile,&fsizeh);

	/* Map the file */
	fmapping = CreateFileMappingW(hFile, NULL, PAGE_READONLY | SEC_COMMIT, 0, 0, NULL);
	CloseHandle(hFile);
	if (!fmapping)
	{
	  WARN("CreateFileMapping error %ld\n", GetLastError() );
	  return 0xFFFFFFFF;
	}

	if (!(peimage = MapViewOfFile(fmapping, FILE_MAP_READ, 0, 0, 0)))
	{
	  WARN("MapViewOfFile error %ld\n", GetLastError() );
	  CloseHandle(fmapping);
	  return 0xFFFFFFFF;
	}
	CloseHandle(fmapping);

	cx1 = LOWORD(cxDesired);
	cx2 = HIWORD(cxDesired) ? HIWORD(cxDesired) : cx1;
	cy1 = LOWORD(cyDesired);
	cy2 = HIWORD(cyDesired) ? HIWORD(cyDesired) : cy1;

	if (pIconId) /* Invalidate first icon identifier */
		*pIconId = 0xFFFFFFFF;

	if (!pIconId) /* if no icon identifier array present use the icon handle array as intermediate storage */
	  pIconId = (UINT*)RetPtr;

	sig = USER32_GetResourceTable(peimage, fsizel, &pData);

/* ico file or NE exe/dll*/
#if 0
	if (sig==IMAGE_OS2_SIGNATURE || sig==1) /* .ICO file */
	{
	  BYTE		*pCIDir = 0;
	  NE_TYPEINFO	*pTInfo = (NE_TYPEINFO*)(pData + 2);
	  NE_NAMEINFO	*pIconStorage = NULL;
	  NE_NAMEINFO	*pIconDir = NULL;
	  LPicoICONDIR	lpiID = NULL;

	  TRACE("-- OS2/icon Signature (0x%08lx)\n", sig);

	  if (pData == (BYTE*)-1)
	  {
	    pCIDir = ICO_GetIconDirectory(peimage, &lpiID, &uSize);	/* check for .ICO file */
	    if (pCIDir)
	    {
	      iconDirCount = 1; iconCount = lpiID->idCount;
	      TRACE("-- icon found %p 0x%08lx 0x%08x 0x%08x\n", pCIDir, uSize, iconDirCount, iconCount);
	    }
	  }
	  else while (pTInfo->type_id && !(pIconStorage && pIconDir))
	  {
	    if (pTInfo->type_id == NE_RSCTYPE_GROUP_ICON)	/* find icon directory and icon repository */
	    {
	      iconDirCount = pTInfo->count;
	      pIconDir = ((NE_NAMEINFO*)(pTInfo + 1));
	      TRACE("\tfound directory - %i icon families\n", iconDirCount);
	    }
	    if (pTInfo->type_id == NE_RSCTYPE_ICON)
	    {
	      iconCount = pTInfo->count;
	      pIconStorage = ((NE_NAMEINFO*)(pTInfo + 1));
	      TRACE("\ttotal icons - %i\n", iconCount);
	    }
	    pTInfo = (NE_TYPEINFO *)((char*)(pTInfo+1)+pTInfo->count*sizeof(NE_NAMEINFO));
	  }

	  if ((pIconStorage && pIconDir) || lpiID)	  /* load resources and create icons */
	  {
	    if (nIcons == 0)
	    {
	      ret = iconDirCount;
	      if (lpiID && pCIDir)	/* *.ico file, deallocate heap pointer*/
	        HeapFree(GetProcessHeap(), 0, pCIDir);
	    }
	    else if (nIconIndex < iconDirCount)
	    {
	      UINT16   i, icon;
	      if (nIcons > iconDirCount - nIconIndex)
	        nIcons = iconDirCount - nIconIndex;

	      for (i = 0; i < nIcons; i++)