VideoCore/Engines: Refactor Engines CallMethod.

src/video_core/engines/engine_interface.h

@@ -0,0 +1,21 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <type_traits>
+#include "common/common_types.h"
+
+namespace Tegra::Engines {
+
+class EngineInterface {
+public:
+    /// Write the value to the register identified by method.
+    virtual void CallMethod(u32 method, u32 method_argument, bool is_last_call) = 0;
+
+    /// Write multiple values to the register identified by method.
+    virtual void CallMultiMethod(u32 method, const u32* base_start, u32 amount, u32 methods_pending) = 0;
+};
+
+}