1 files changed, 0 insertions, 97 deletions
diff --git a/video/out/win32/exclusive_hack.c b/video/out/win32/exclusive_hack.c
deleted file mode 100644
index 668dfd5f57..0000000000
--- a/video/out/win32/exclusive_hack.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * This file is part of mpv.
- *
- * mpv 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.
- *
- * mpv 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 mpv.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <windows.h>
-#include <winternl.h>
-#include <pthread.h>
-
-#include "exclusive_hack.h"
-
-// Missing NT API definitions
-typedef enum _MP_MUTANT_INFORMATION_CLASS {
-    MpMutantBasicInformation
-} MP_MUTANT_INFORMATION_CLASS;
-#define MUTANT_INFORMATION_CLASS MP_MUTANT_INFORMATION_CLASS
-#define MutantBasicInformation MpMutantBasicInformation
-
-typedef struct _MP_MUTANT_BASIC_INFORMATION {
-    LONG CurrentCount;
-    BOOLEAN OwnedByCaller;
-    BOOLEAN AbandonedState;
-} MP_MUTANT_BASIC_INFORMATION;
-#define MUTANT_BASIC_INFORMATION MP_MUTANT_BASIC_INFORMATION
-
-static pthread_once_t internal_api_load_ran = PTHREAD_ONCE_INIT;
-static bool internal_api_loaded = false;
-
-static HANDLE excl_mode_mutex;
-static NTSTATUS (NTAPI *pNtQueryMutant)(HANDLE MutantHandle,
-    MUTANT_INFORMATION_CLASS MutantInformationClass, PVOID MutantInformation,
-    ULONG MutantInformationLength, PULONG ReturnLength);
-
-static void internal_api_load(void)
-{
-    HMODULE ntdll = GetModuleHandleW(L"ntdll.dll");
-    if (!ntdll)
-        return;
-    pNtQueryMutant = (void*)GetProcAddress(ntdll, "NtQueryMutant");
-    if (!pNtQueryMutant)
-        return;
-    excl_mode_mutex = OpenMutexW(MUTANT_QUERY_STATE, FALSE,
-        L"Local\\__DDrawExclMode__");
-    if (!excl_mode_mutex)
-        return;
-
-    internal_api_loaded = true;
-}
-
-bool mp_w32_is_in_exclusive_mode(void)
-{
-    pthread_once(&internal_api_load_ran, internal_api_load);
-    if (!internal_api_loaded)
-        return false;
-
-    // As far as we can tell, there is no way to know if a specific OpenGL
-    // program is being redirected by the DWM. It is possible, however, to
-    // know if some program on the computer is unredirected by the DWM, that
-    // is, whether some program is in exclusive fullscreen mode. Exclusive
-    // fullscreen programs acquire an undocumented mutex: __DDrawExclMode__. If
-    // this is acquired, it's probably by mpv. Even if it isn't, the penalty
-    // for incorrectly guessing true (dropped frames) is better than the
-    // penalty for incorrectly guessing false (tearing.)
-
-    // Testing this mutex is another problem. There is no public function for
-    // testing a mutex without attempting to acquire it, but that method won't
-    // work because if mpv is in fullscreen, the mutex will already be acquired
-    // by this thread (in ddraw.dll) and Windows will happily let it be
-    // acquired again. Instead, use the undocumented NtQueryMutant function to
-    // test the mutex.
-
-    // Note: SHQueryUserNotificationState uses this mutex internally, but it is
-    // probably not suitable because it sends a message to the shell instead of
-    // testing the mutex directly. mpv will check for exclusive mode once per
-    // frame, so if the shell is not running or not responding, it may cause
-    // performance issues.
-
-    MUTANT_BASIC_INFORMATION mbi;
-    NTSTATUS s = pNtQueryMutant(excl_mode_mutex, MutantBasicInformation, &mbi,
-        sizeof mbi, NULL);
-    if (!NT_SUCCESS(s))
-        return false;
-
-    return !mbi.CurrentCount;
-}