1 files changed, 53 insertions, 0 deletions

diff --git a/src/video_core/renderer_vulkan/vk_state_tracker.h b/src/video_core/renderer_vulkan/vk_state_tracker.h
new file mode 100644
index 000000000..9ec7b5136
--- /dev/null
+++ b/src/video_core/renderer_vulkan/vk_state_tracker.h
@@ -0,0 +1,53 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <type_traits> // REMOVE ME
+#include <utility>
+
+#include "common/common_types.h"
+#include "core/core.h"
+#include "video_core/dirty_flags.h"
+#include "video_core/engines/maxwell_3d.h"
+
+namespace Vulkan {
+
+namespace Dirty {
+
+enum : u8 {
+    First = VideoCommon::Dirty::LastCommonEntry,
+
+    Viewports,
+};
+
+} // namespace Dirty
+
+class StateTracker {
+public:
+    explicit StateTracker(Core::System& system);
+
+    void Initialize();
+
+    void InvalidateCommandBufferState();
+
+    bool TouchViewports() {
+        return Exchange(Dirty::Viewports, false);
+    }
+
+private:
+    using Flags = std::remove_reference_t<decltype(Tegra::Engines::Maxwell3D::dirty.flags)>;
+
+    bool Exchange(std::size_t id, bool new_value) const noexcept {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        const bool is_dirty = flags[id];
+        flags[id] = new_value;
+        return is_dirty;
+    }
+
+    Core::System& system;
+    Flags invalidation_flags;
+};
+
+} // namespace Vulkan