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403 results
Show changes
Commits on Source (3)
......@@ -386,23 +386,10 @@ vlc_frame_t *vlc_frame_shm_Alloc (void *addr, size_t length)
#ifdef _WIN32
# include <io.h>
static
ssize_t pread (int fd, void *buf, size_t count, off_t offset)
static void cleanup_hmap(void *opaque)
{
HANDLE handle = (HANDLE)(intptr_t)_get_osfhandle (fd);
if (handle == INVALID_HANDLE_VALUE)
return -1;
OVERLAPPED olap = {.Offset = offset, .OffsetHigh = (offset >> 32)};
DWORD written;
/* This braindead API will override the file pointer even if we specify
* an explicit read offset... So do not expect this to mix well with
* regular read() calls. */
if (ReadFile (handle, buf, count, &written, &olap))
return written;
return -1;
HANDLE hMap = opaque;
CloseHandle(hMap);
}
#endif
......@@ -451,30 +438,39 @@ vlc_frame_t *vlc_frame_File(int fd, bool write)
return vlc_frame_mmap_Alloc (addr, length);
}
#elif defined(_WIN32)
HANDLE handle = INVALID_HANDLE_VALUE;
if (length > 0)
{
HANDLE handle = (HANDLE)(intptr_t)_get_osfhandle (fd);
if (handle != INVALID_HANDLE_VALUE)
handle = (HANDLE)(intptr_t)_get_osfhandle (fd);
if (handle == INVALID_HANDLE_VALUE)
{
void *addr = NULL;
HANDLE hMap;
DWORD prot = write ? PAGE_READWRITE : PAGE_READONLY;
DWORD access = FILE_MAP_READ | (write ? FILE_MAP_WRITE : 0);
errno = EBADF;
return NULL;
}
void *addr = NULL;
HANDLE hMap;
DWORD prot = write ? PAGE_READWRITE : PAGE_READONLY;
DWORD access = FILE_MAP_READ | (write ? FILE_MAP_WRITE : 0);
#ifdef VLC_WINSTORE_APP
hMap = CreateFileMappingFromApp(handle, NULL, prot, length, NULL);
if (hMap != INVALID_HANDLE_VALUE)
addr = MapViewOfFileFromApp(hMap, access, 0, length);
hMap = CreateFileMappingFromApp(handle, NULL, prot, length, NULL);
if (hMap != INVALID_HANDLE_VALUE)
addr = MapViewOfFileFromApp(hMap, access, 0, length);
#else
hMap = CreateFileMapping(handle, NULL, prot, 0, length, NULL);
if (hMap != INVALID_HANDLE_VALUE)
addr = MapViewOfFile(hMap, access, 0, 0, length);
DWORD hLength = (DWORD)(length >> 32);
DWORD lLength = (DWORD)(length & 0xFFFFFFFF);
hMap = CreateFileMapping(handle, NULL, prot, hLength, lLength, NULL);
if (hMap != INVALID_HANDLE_VALUE)
addr = MapViewOfFile(hMap, access, 0, 0, length);
#endif
vlc_cleanup_push(cleanup_hmap, hMap);
vlc_testcancel();
vlc_cleanup_pop();
if (addr != NULL)
return vlc_frame_mapview_Alloc(hMap, addr, length);
if (addr != NULL)
return vlc_frame_mapview_Alloc(hMap, addr, length);
CloseHandle(hMap);
}
CloseHandle(hMap);
}
#else
(void) write;
......@@ -486,6 +482,48 @@ vlc_frame_t *vlc_frame_File(int fd, bool write)
return NULL;
vlc_frame_cleanup_push (frame);
#if defined(_WIN32)
LARGE_INTEGER srcPointer = { 0 };
if (unlikely(!SetFilePointerEx(handle, srcPointer, &srcPointer, FILE_CURRENT)))
{
vlc_frame_Release (frame);
frame = NULL;
errno = EIO;
goto done;
}
LARGE_INTEGER startPointer = { 0 };
if (unlikely(!SetFilePointerEx(handle, startPointer, NULL, FILE_BEGIN)))
{
vlc_frame_Release (frame);
frame = NULL;
errno = EIO;
goto done;
}
for (size_t i = 0; i < length;)
{
DWORD hOffset = (DWORD)(i >> 32);
DWORD lOffset = (DWORD)(i & 0xFFFFFFFF);
OVERLAPPED olap = {.Offset = hOffset, .OffsetHigh = lOffset};
DWORD lLength = (length - i) > ULONG_MAX ? ULONG_MAX : (DWORD)(length - i);
DWORD len;
if (!ReadFile(handle, frame->p_buffer + i, lLength, &len, &olap))
{
vlc_frame_Release (frame);
frame = NULL;
errno = EIO;
break;
}
vlc_testcancel();
i += len;
}
if (unlikely(!SetFilePointerEx(handle, srcPointer, NULL, FILE_BEGIN)))
{
vlc_frame_Release (frame);
frame = NULL;
errno = EIO;
goto done;
}
#else // !_WIN32
for (size_t i = 0; i < length;)
{
ssize_t len = pread (fd, frame->p_buffer + i, length - i, i);
......@@ -497,6 +535,8 @@ vlc_frame_t *vlc_frame_File(int fd, bool write)
}
i += len;
}
#endif // !_WIN32
done:
vlc_cleanup_pop ();
return frame;
}
......