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Make sure things still work if 16-bit dlls cannot be loaded.

This commit is contained in:
Alexandre Julliard 2002-10-02 02:36:20 +00:00
parent c728efc3c9
commit 9842b19931
5 changed files with 76 additions and 66 deletions
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14
dlls/commdlg/cdlg32.c
View File

@ -31,7 +31,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(commdlg);
HINSTANCE COMDLG32_hInstance = 0;
HINSTANCE16 COMDLG32_hInstance16 = 0;
static HINSTANCE16 COMDLG32_hInstance16;
static DWORD COMDLG32_TlsIndex;
@ -78,15 +78,7 @@ BOOL WINAPI COMDLG32_DllEntryPoint(HINSTANCE hInstance, DWORD Reason, LPVOID Res
COMDLG32_hInstance = hInstance;
DisableThreadLibraryCalls(hInstance);
if(!COMDLG32_hInstance16)
{
if(!(COMDLG32_hInstance16 = LoadLibrary16("commdlg.dll")))
{
ERR("Could not load sibling commdlg.dll\n");
return FALSE;
}
}
COMDLG32_hInstance16 = LoadLibrary16("commdlg.dll");
COMDLG32_TlsIndex = 0xffffffff;
SHELL32_hInstance = GetModuleHandleA("SHELL32.DLL");
@ -128,8 +120,6 @@ BOOL WINAPI COMDLG32_DllEntryPoint(HINSTANCE hInstance, DWORD Reason, LPVOID Res
case DLL_PROCESS_DETACH:
if (COMDLG32_TlsIndex != 0xffffffff) TlsFree(COMDLG32_TlsIndex);
COMDLG32_TlsIndex = 0xffffffff;
COMDLG32_hInstance = 0;
if(COMDLG32_hInstance16) FreeLibrary16(COMDLG32_hInstance16);
if(SHFOLDER_hInstance) FreeLibrary(SHFOLDER_hInstance);
break;

7
dlls/kernel/kernel_main.c
View File

@ -68,8 +68,8 @@ static BOOL process_attach(void)
/* Initialize DOS memory */
if (!DOSMEM_Init(0)) return FALSE;
if ((hModule = LoadLibrary16( "krnl386.exe" )) < 32) return FALSE;
if ((hModule = LoadLibrary16( "krnl386.exe" )) >= 32)
{
/* Initialize special KERNEL entry points */
/* Initialize KERNEL.178 (__WINFLAGS) with the correct flags value */
@ -99,9 +99,10 @@ static BOOL process_attach(void)
NE_SetEntryPoint( hModule, 193, DOSMEM_BiosDataSeg ); /* KERNEL.193: __0040H */
NE_SetEntryPoint( hModule, 194, DOSMEM_BiosSysSeg ); /* KERNEL.194: __F000H */
#undef SET_ENTRY_POINT
}
/* Force loading of some dlls */
if (LoadLibrary16( "system" ) < 32) return FALSE;
LoadLibrary16( "system" );
/* Create 16-bit task */
TASK_CreateMainTask();

8
dlls/user/user_main.c
View File

@ -214,8 +214,12 @@ static BOOL process_attach(void)
HINSTANCE16 instance;
/* Create USER heap */
if ((instance = LoadLibrary16( "USER.EXE" )) < 32) return FALSE;
USER_HeapSel = instance | 7;
if ((instance = LoadLibrary16( "USER.EXE" )) >= 32) USER_HeapSel = instance | 7;
else
{
USER_HeapSel = GlobalAlloc16( GMEM_FIXED, 65536 );
LocalInit16( USER_HeapSel, 32, 65534 );
}
/* Load the graphics driver */
tweak_init();

48
objects/gdiobj.c
View File

@ -584,8 +584,7 @@ BOOL GDI_Init(void)
hkey = 0;
/* create GDI heap */
if ((instance = LoadLibrary16( "GDI.EXE" )) < 32) return FALSE;
GDI_HeapSel = instance | 7;
if ((instance = LoadLibrary16( "GDI.EXE" )) >= 32) GDI_HeapSel = instance | 7;
/* create stock objects */
stock_objects[WHITE_BRUSH] = CreateBrushIndirect( &WhiteBrush );
@ -680,7 +679,16 @@ void *GDI_AllocObject( WORD size, WORD magic, HGDIOBJ *handle, const struct gdi_
_EnterSysLevel( &GDI_level );
switch(magic)
{
/* allocate DCs on the larger heap */
default:
if (GDI_HeapSel)
{
if (!(hlocal = LOCAL_Alloc( GDI_HeapSel, LMEM_MOVEABLE, size ))) goto error;
assert( hlocal & 2 );
obj = (GDIOBJHDR *)LOCAL_Lock( GDI_HeapSel, hlocal );
*handle = (HGDIOBJ)(ULONG_PTR)hlocal;
break;
}
/* fall through */
case DC_MAGIC:
case DISABLED_DC_MAGIC:
case META_DC_MAGIC:
@ -691,12 +699,6 @@ void *GDI_AllocObject( WORD size, WORD magic, HGDIOBJ *handle, const struct gdi_
case BITMAP_MAGIC:
if (!(obj = alloc_large_heap( size, handle ))) goto error;
break;
default:
if (!(hlocal = LOCAL_Alloc( GDI_HeapSel, LMEM_MOVEABLE, size ))) goto error;
assert( hlocal & 2 );
obj = (GDIOBJHDR *)LOCAL_Lock( GDI_HeapSel, hlocal );
*handle = (HGDIOBJ)(ULONG_PTR)hlocal;
break;
}
obj->hNext = 0;
@ -724,17 +726,33 @@ void *GDI_ReallocObject( WORD size, HGDIOBJ handle, void *object )
{
HGDIOBJ new_handle;
assert( handle & 2 ); /* no realloc for large handles */
LOCAL_Unlock( GDI_HeapSel, handle );
if (!(new_handle = LOCAL_ReAlloc( GDI_HeapSel, handle, size, LMEM_MOVEABLE )))
if (handle & 2) /* GDI heap handle */
{
LOCAL_Unlock( GDI_HeapSel, handle );
if ((new_handle = LOCAL_ReAlloc( GDI_HeapSel, handle, size, LMEM_MOVEABLE )))
{
assert( new_handle == handle ); /* moveable handle cannot change */
return LOCAL_Lock( GDI_HeapSel, handle );
}
}
else
{
int i = ((ULONG_PTR)handle >> 2) - FIRST_LARGE_HANDLE;
if (i >= 0 && i < MAX_LARGE_HANDLES && large_handles[i])
{
void *new_ptr = HeapReAlloc( GetProcessHeap(), 0, large_handles[i], size );
if (new_ptr)
{
large_handles[i] = new_ptr;
return new_ptr;
}
}
else ERR( "Invalid handle %x\n", handle );
}
TRACE_SEC( handle, "leave" );
_LeaveSysLevel( &GDI_level );
return NULL;
}
assert( new_handle == handle ); /* moveable handle cannot change */
return LOCAL_Lock( GDI_HeapSel, handle );
}
/***********************************************************************

13
windows/syscolor.c
View File

@ -125,23 +125,20 @@ static HPEN SysColorPens[NUM_SYS_COLORS];
*/
static void SYSCOLOR_MakeObjectSystem( HGDIOBJ handle, BOOL set)
{
static WORD GDI_heap_sel = 0;
WORD heap_sel;
LPWORD ptr;
if (!GDI_heap_sel)
if ((heap_sel = GetModuleHandle16( "gdi" )))
{
GDI_heap_sel = LoadLibrary16("gdi");
FreeLibrary16(GDI_heap_sel);
}
ptr = (LPWORD)LOCAL_Lock(GDI_heap_sel, handle);
ptr = (LPWORD)LOCAL_Lock(heap_sel, handle);
/* touch the "system" bit of the wMagic field of a GDIOBJHDR */
if (set)
*(ptr+1) &= ~OBJECT_NOSYSTEM;
else
*(ptr+1) |= OBJECT_NOSYSTEM;
LOCAL_Unlock( GDI_heap_sel, handle );
LOCAL_Unlock( heap_sel, handle );
}
}
/*************************************************************************