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wine/loader/resource.c

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/*
* Resources
*
* Copyright 1993 Robert J. Amstadt
* Copyright 1995 Alexandre Julliard
*/
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "windef.h"
#include "winbase.h"
#include "wine/winbase16.h"
#include "wine/exception.h"
#include "heap.h"
#include "cursoricon.h"
#include "module.h"
#include "file.h"
#include "debugtools.h"
#include "winerror.h"
#include "winnls.h"
#include "msvcrt/excpt.h"
DEFAULT_DEBUG_CHANNEL(resource);
#define HRSRC_MAP_BLOCKSIZE 16
typedef struct _HRSRC_ELEM
{
HANDLE hRsrc;
WORD type;
} HRSRC_ELEM;
typedef struct _HRSRC_MAP
{
int nAlloc;
int nUsed;
HRSRC_ELEM *elem;
} HRSRC_MAP;
/**********************************************************************
* MapHRsrc32To16
*/
static HRSRC16 MapHRsrc32To16( NE_MODULE *pModule, HANDLE hRsrc32, WORD type )
{
HRSRC_MAP *map = (HRSRC_MAP *)pModule->hRsrcMap;
HRSRC_ELEM *newElem;
int i;
/* On first call, initialize HRSRC map */
if ( !map )
{
if ( !(map = (HRSRC_MAP *)HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(HRSRC_MAP) ) ) )
{
ERR("Cannot allocate HRSRC map\n" );
return 0;
}
pModule->hRsrcMap = (LPVOID)map;
}
/* Check whether HRSRC32 already in map */
for ( i = 0; i < map->nUsed; i++ )
if ( map->elem[i].hRsrc == hRsrc32 )
return (HRSRC16)(i + 1);
/* If no space left, grow table */
if ( map->nUsed == map->nAlloc )
{
if ( !(newElem = (HRSRC_ELEM *)HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
map->elem,
(map->nAlloc + HRSRC_MAP_BLOCKSIZE)
* sizeof(HRSRC_ELEM) ) ))
{
ERR("Cannot grow HRSRC map\n" );
return 0;
}
map->elem = newElem;
map->nAlloc += HRSRC_MAP_BLOCKSIZE;
}
/* Add HRSRC32 to table */
map->elem[map->nUsed].hRsrc = hRsrc32;
map->elem[map->nUsed].type = type;
map->nUsed++;
return (HRSRC16)map->nUsed;
}
/**********************************************************************
* MapHRsrc16To32
*/
static HANDLE MapHRsrc16To32( NE_MODULE *pModule, HRSRC16 hRsrc16 )
{
HRSRC_MAP *map = (HRSRC_MAP *)pModule->hRsrcMap;
if ( !map || !hRsrc16 || (int)hRsrc16 > map->nUsed ) return 0;
return map->elem[(int)hRsrc16-1].hRsrc;
}
/**********************************************************************
* MapHRsrc16ToType
*/
static WORD MapHRsrc16ToType( NE_MODULE *pModule, HRSRC16 hRsrc16 )
{
HRSRC_MAP *map = (HRSRC_MAP *)pModule->hRsrcMap;
if ( !map || !hRsrc16 || (int)hRsrc16 > map->nUsed ) return 0;
return map->elem[(int)hRsrc16-1].type;
}
/* filter for page-fault exceptions */
static WINE_EXCEPTION_FILTER(page_fault)
{
if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
return EXCEPTION_EXECUTE_HANDLER;
return EXCEPTION_CONTINUE_SEARCH;
}
static HRSRC RES_FindResource2( HMODULE hModule, LPCSTR type,
LPCSTR name, WORD lang,
BOOL bUnicode, BOOL bRet16 )
{
HRSRC hRsrc = 0;
TRACE("(%08x, %08x%s, %08x%s, %04x, %s, %s)\n",
hModule,
(UINT)type, HIWORD(type)? (bUnicode? debugstr_w((LPWSTR)type) : debugstr_a(type)) : "",
(UINT)name, HIWORD(name)? (bUnicode? debugstr_w((LPWSTR)name) : debugstr_a(name)) : "",
lang,
bUnicode? "W" : "A",
bRet16? "NE" : "PE" );
if (!HIWORD(hModule))
{
HMODULE16 hMod16 = MapHModuleLS( hModule );
NE_MODULE *pModule = NE_GetPtr( hMod16 );
if (!pModule) return 0;
if (!pModule->module32)
{
/* 16-bit NE module */
LPSTR typeStr, nameStr;
if ( HIWORD( type ) && bUnicode )
typeStr = HEAP_strdupWtoA( GetProcessHeap(), 0, (LPCWSTR)type );
else
typeStr = (LPSTR)type;
if ( HIWORD( name ) && bUnicode )
nameStr = HEAP_strdupWtoA( GetProcessHeap(), 0, (LPCWSTR)name );
else
nameStr = (LPSTR)name;
hRsrc = NE_FindResource( pModule, nameStr, typeStr );
if ( HIWORD( type ) && bUnicode )
HeapFree( GetProcessHeap(), 0, typeStr );
if ( HIWORD( name ) && bUnicode )
HeapFree( GetProcessHeap(), 0, nameStr );
/* If we need to return 32-bit HRSRC, no conversion is necessary,
we simply use the 16-bit HRSRC as 32-bit HRSRC */
}
else
{
/* 32-bit PE module */
hRsrc = RES_FindResource2( pModule->module32, type, name, lang, bUnicode, FALSE );
/* If we need to return 16-bit HRSRC, perform conversion */
if ( bRet16 )
hRsrc = MapHRsrc32To16( pModule, hRsrc,
HIWORD( type )? 0 : LOWORD( type ) );
}
}
else
{
/* 32-bit PE module */
LPWSTR typeStr, nameStr;
if ( HIWORD( type ) && !bUnicode )
typeStr = HEAP_strdupAtoW( GetProcessHeap(), 0, type );
else
typeStr = (LPWSTR)type;
if ( HIWORD( name ) && !bUnicode )
nameStr = HEAP_strdupAtoW( GetProcessHeap(), 0, name );
else
nameStr = (LPWSTR)name;
/* Here is the real difference between FindResouce and FindResourceEx */
if(lang == MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL) ||
lang == MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT) ||
lang == MAKELANGID(LANG_NEUTRAL, SUBLANG_SYS_DEFAULT) ||
lang == MAKELANGID(LANG_NEUTRAL, 3)) /* FIXME: real name? */
hRsrc = PE_FindResourceW( hModule, nameStr, typeStr );
else
hRsrc = PE_FindResourceExW( hModule, nameStr, typeStr, lang );
if ( HIWORD( type ) && !bUnicode )
HeapFree( GetProcessHeap(), 0, typeStr );
if ( HIWORD( name ) && !bUnicode )
HeapFree( GetProcessHeap(), 0, nameStr );
}
return hRsrc;
}
/**********************************************************************
* RES_FindResource
*/
static HRSRC RES_FindResource( HMODULE hModule, LPCSTR type,
LPCSTR name, WORD lang,
BOOL bUnicode, BOOL bRet16 )
{
HRSRC hRsrc;
__TRY
{
hRsrc = RES_FindResource2(hModule, type, name, lang, bUnicode, bRet16);
}
__EXCEPT(page_fault)
{
WARN("page fault\n");
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
__ENDTRY
return hRsrc;
}
/**********************************************************************
* RES_SizeofResource
*/
static DWORD RES_SizeofResource( HMODULE hModule, HRSRC hRsrc, BOOL bRet16 )
{
if (!hRsrc) return 0;
TRACE("(%08x, %08x, %s)\n", hModule, hRsrc, bRet16? "NE" : "PE" );
if (!HIWORD(hModule))
{
HMODULE16 hMod16 = MapHModuleLS( hModule );
NE_MODULE *pModule = NE_GetPtr( hMod16 );
if (!pModule) return 0;
if (!pModule->module32) /* 16-bit NE module */
{
/* If we got a 32-bit hRsrc, we don't need to convert it */
return NE_SizeofResource( pModule, hRsrc );
}
/* If we got a 16-bit hRsrc, convert it */
if (!HIWORD(hRsrc)) hRsrc = MapHRsrc16To32( pModule, hRsrc );
}
/* 32-bit PE module */
return PE_SizeofResource( hRsrc );
}
/**********************************************************************
* RES_LoadResource
*/
static HGLOBAL RES_LoadResource( HMODULE hModule, HRSRC hRsrc, BOOL bRet16 )
{
HGLOBAL hMem = 0;
TRACE("(%08x, %08x, %s)\n", hModule, hRsrc, bRet16? "NE" : "PE" );
if (!hRsrc) return 0;
if (!HIWORD(hModule))
{
HMODULE16 hMod16 = MapHModuleLS( hModule );
NE_MODULE *pModule = NE_GetPtr( hMod16 );
if (!pModule) return 0;
if (!pModule->module32)
{
/* 16-bit NE module */
/* If we got a 32-bit hRsrc, we don't need to convert it */
hMem = NE_LoadResource( pModule, hRsrc );
/* If we are to return a 32-bit resource, we should probably
convert it but we don't for now. FIXME !!! */
return hMem;
}
else
{
/* If we got a 16-bit hRsrc, convert it */
HRSRC hRsrc32 = HIWORD(hRsrc)? hRsrc : MapHRsrc16To32( pModule, hRsrc );
hMem = PE_LoadResource( pModule->module32, hRsrc32 );
/* If we need to return a 16-bit resource, convert it */
if ( bRet16 )
{
WORD type = MapHRsrc16ToType( pModule, hRsrc );
DWORD size = SizeofResource( hModule, hRsrc );
LPVOID bits = LockResource( hMem );
hMem = NE_LoadPEResource( pModule, type, bits, size );
}
}
}
else
{
/* 32-bit PE module */
hMem = PE_LoadResource( hModule, hRsrc );
}
return hMem;
}
/**********************************************************************
* FindResource (KERNEL.60)
* FindResource16 (KERNEL32.@)
*/
HRSRC16 WINAPI FindResource16( HMODULE16 hModule, LPCSTR name, LPCSTR type )
{
return RES_FindResource( hModule, type, name,
MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL), FALSE, TRUE );
}
/**********************************************************************
* FindResourceA (KERNEL32.@)
*/
HRSRC WINAPI FindResourceA( HMODULE hModule, LPCSTR name, LPCSTR type )
{
return RES_FindResource( hModule, type, name,
MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL), FALSE, FALSE );
}
/**********************************************************************
* FindResourceExA (KERNEL32.@)
*/
HRSRC WINAPI FindResourceExA( HMODULE hModule,
LPCSTR type, LPCSTR name, WORD lang )
{
return RES_FindResource( hModule, type, name,
lang, FALSE, FALSE );
}
/**********************************************************************
* FindResourceExW (KERNEL32.@)
*/
HRSRC WINAPI FindResourceExW( HMODULE hModule,
LPCWSTR type, LPCWSTR name, WORD lang )
{
return RES_FindResource( hModule, (LPCSTR)type, (LPCSTR)name,
lang, TRUE, FALSE );
}
/**********************************************************************
* FindResourceW (KERNEL32.@)
*/
HRSRC WINAPI FindResourceW(HINSTANCE hModule, LPCWSTR name, LPCWSTR type)
{
return RES_FindResource( hModule, (LPCSTR)type, (LPCSTR)name,
MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL), TRUE, FALSE );
}
/**********************************************************************
* LoadResource (KERNEL.61)
* LoadResource16 (KERNEL32.@)
*/
HGLOBAL16 WINAPI LoadResource16( HMODULE16 hModule, HRSRC16 hRsrc )
{
return RES_LoadResource( hModule, hRsrc, TRUE );
}
/**********************************************************************
* LoadResource (KERNEL32.@)
*/
HGLOBAL WINAPI LoadResource( HINSTANCE hModule, HRSRC hRsrc )
{
return RES_LoadResource( hModule, hRsrc, FALSE );
}
/**********************************************************************
* LockResource (KERNEL.62)
*/
SEGPTR WINAPI WIN16_LockResource16( HGLOBAL16 handle )
{
TRACE("(%04x)\n", handle );
/* May need to reload the resource if discarded */
return K32WOWGlobalLock16( handle );
}
/**********************************************************************
* LockResource16 (KERNEL32.@)
*/
LPVOID WINAPI LockResource16( HGLOBAL16 handle )
{
return MapSL( WIN16_LockResource16(handle) );
}
/**********************************************************************
* LockResource (KERNEL32.@)
*/
LPVOID WINAPI LockResource( HGLOBAL handle )
{
TRACE("(%08x)\n", handle );
if (HIWORD( handle )) /* 32-bit memory handle */
return (LPVOID)handle;
/* 16-bit memory handle */
return LockResource16( handle );
}
typedef WORD (WINAPI *pDestroyIcon32Proc)( HGLOBAL16 handle, UINT16 flags );
/**********************************************************************
* FreeResource (KERNEL.63)
* FreeResource16 (KERNEL32.@)
*/
BOOL16 WINAPI FreeResource16( HGLOBAL16 handle )
{
HGLOBAL retv = handle;
NE_MODULE *pModule = NE_GetPtr( FarGetOwner16( handle ) );
TRACE("(%04x)\n", handle );
/* Try NE resource first */
retv = NE_FreeResource( pModule, handle );
/* If this failed, call USER.DestroyIcon32; this will check
whether it is a shared cursor/icon; if not it will call
GlobalFree16() */
if ( retv )
{
pDestroyIcon32Proc proc;
HMODULE user = GetModuleHandleA( "user32.dll" );
if (user && (proc = (pDestroyIcon32Proc)GetProcAddress( user, "DestroyIcon32" )))
retv = proc( handle, CID_RESOURCE );
else
retv = GlobalFree16( handle );
}
return (BOOL)retv;
}
/**********************************************************************
* FreeResource (KERNEL32.@)
*/
BOOL WINAPI FreeResource( HGLOBAL handle )
{
if (HIWORD(handle)) return 0; /* 32-bit memory handle: nothing to do */
return FreeResource16( handle );
}
/**********************************************************************
* SizeofResource (KERNEL.65)
* SizeofResource16 (KERNEL32.@)
*/
DWORD WINAPI SizeofResource16( HMODULE16 hModule, HRSRC16 hRsrc )
{
return RES_SizeofResource( hModule, hRsrc, TRUE );
}
/**********************************************************************
* SizeofResource (KERNEL32.@)
*/
DWORD WINAPI SizeofResource( HINSTANCE hModule, HRSRC hRsrc )
{
return RES_SizeofResource( hModule, hRsrc, FALSE );
}
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