1 files changed, 49 insertions, 0 deletions
diff --git a/osdep/windows_utils.h b/osdep/windows_utils.h
new file mode 100644
index 0000000..a8a5e94
--- /dev/null
+++ b/osdep/windows_utils.h
@@ -0,0 +1,49 @@
+/*
+ * 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/>.
+ */
+
+#ifndef MP_WINDOWS_UTILS_H_
+#define MP_WINDOWS_UTILS_H_
+
+#include <windows.h>
+#include <stdbool.h>
+
+// Conditionally release a COM interface and set the pointer to NULL
+#define SAFE_RELEASE(u) \
+    do { if ((u) != NULL) (u)->lpVtbl->Release(u); (u) = NULL; } while(0)
+
+char *mp_GUID_to_str_buf(char *buf, size_t buf_size, const GUID *guid);
+#define mp_GUID_to_str(guid) mp_GUID_to_str_buf((char[40]){0}, 40, (guid))
+char *mp_HRESULT_to_str_buf(char *buf, size_t buf_size, HRESULT hr);
+#define mp_HRESULT_to_str(hr) mp_HRESULT_to_str_buf((char[256]){0}, 256, (hr))
+#define mp_LastError_to_str() mp_HRESULT_to_str(HRESULT_FROM_WIN32(GetLastError()))
+
+struct w32_create_anon_pipe_opts {
+    DWORD server_flags;
+    DWORD server_mode;
+    bool server_inheritable;
+    DWORD out_buf_size;
+    DWORD in_buf_size;
+
+    DWORD client_flags;
+    DWORD client_mode;
+    bool client_inheritable;
+};
+
+bool mp_w32_create_anon_pipe(HANDLE *server, HANDLE *client,
+                             struct w32_create_anon_pipe_opts *opts);
+
+#endif