Move presentation to separate thread/improve sync (#303)

* video_out: Move presentation to separate thread

* liverpool: Better sync for CPU flips

* driver: Make flip blocking

* videoout: Proper flip rate and vblank management

* config: Add vblank divider option

* clang format

* videoout: added `sceVideoOutWaitVblank`

* clang format

* vk_scheduler: Silly merge conflict

* externals: Add renderdoc API

* clang format

* reuse

* rdoc: manual capture trigger

* clang fmt

---------

Co-authored-by: psucien <168137814+psucien@users.noreply.github.com>

src/video_core/renderdoc.h

@@ -0,0 +1,25 @@
+// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+
+namespace VideoCore {
+
+/// Loads renderdoc dynamic library module.
+void LoadRenderDoc();
+
+/// Begins a capture if a renderdoc instance is attached.
+void StartCapture();
+
+/// Ends current renderdoc capture.
+void EndCapture();
+
+/// Triggers capturing process.
+void TriggerCapture();
+
+/// Sets output directory for captures
+void SetOutputDir(const std::string& path, const std::string& prefix);
+
+} // namespace VideoCore