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gdi32: Use HandleToULong inline function to convert handle to index instead of casting.

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This commit is contained in:
Daniel Lehman 2012-04-16 14:53:43 -07:00 committed by Alexandre Julliard
parent 8418115edf
commit ea6e0a833b
2 changed files with 46 additions and 2 deletions
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4
dlls/gdi32/gdiobj.c
View file

@ -699,7 +699,7 @@ void *free_gdi_handle( HGDIOBJ handle )
GDIOBJHDR *object = NULL;
int i;
i = ((ULONG_PTR)handle >> 2) - FIRST_LARGE_HANDLE;
i = (HandleToULong(handle) >> 2) - FIRST_LARGE_HANDLE;
if (i >= 0 && i < MAX_LARGE_HANDLES)
{
EnterCriticalSection( &gdi_section );
@ -732,7 +732,7 @@ void *GDI_GetObjPtr( HGDIOBJ handle, WORD type )
EnterCriticalSection( &gdi_section );
i = ((UINT_PTR)handle >> 2) - FIRST_LARGE_HANDLE;
i = (HandleToULong(handle) >> 2) - FIRST_LARGE_HANDLE;
if (i >= 0 && i < MAX_LARGE_HANDLES)
{
ptr = large_handles[i];

44
dlls/gdi32/tests/gdiobj.c
View file

@ -319,10 +319,54 @@ static void test_region(void)
DeleteObject(hrgn);
}
static void test_handles_on_win64(void)
{
int i;
BOOL ret;
DWORD type;
HRGN hrgn, hrgn_test;
static const struct
{
ULONG high;
ULONG low;
BOOL ret;
} cases[] =
{
{ 0x00000000, 0x00000000, TRUE },
{ 0x00000000, 0x0000ffe0, FALSE }, /* just over MAX_LARGE_HANDLES */
{ 0x00000000, 0x0000ffb0, FALSE }, /* just under MAX_LARGE_HANDLES */
{ 0xffffffff, 0xffff0000, FALSE },
{ 0xffffffff, 0x00000000, TRUE },
{ 0xdeadbeef, 0x00000000, TRUE },
{ 0xcccccccc, 0xcccccccc, FALSE }
};
if (sizeof(void*) != 8)
return;
for (i = 0; i < sizeof(cases)/sizeof(cases[0]); i++)
{
hrgn = CreateRectRgn(10, 10, 20, 20);
hrgn_test = (HRGN)(ULONG_PTR)((ULONG_PTR)hrgn | ((ULONGLONG)cases[i].high << 32) | cases[i].low);
type = GetObjectType( hrgn_test );
if (cases[i].ret)
ok( type == OBJ_REGION, "wrong type %u\n", type );
else
ok( type == 0, "wrong type %u\n", type );
ret = DeleteObject(hrgn_test);
ok( cases[i].ret == ret, "DeleteObject should return %s (%p)\n",
cases[i].ret ? "TRUE" : "FALSE", hrgn_test);
/* actually free it if above is expected to fail */
if (!ret) DeleteObject(hrgn);
}
}
START_TEST(gdiobj)
{
test_gdi_objects();
test_thread_objects();
test_GetCurrentObject();
test_region();
test_handles_on_win64();
}