1 files changed, 69 insertions, 0 deletions

diff --git a/src/video_core/renderer_vulkan/vk_scheduler.h b/src/video_core/renderer_vulkan/vk_scheduler.h
new file mode 100644
index 000000000..cfaf5376f
--- /dev/null
+++ b/src/video_core/renderer_vulkan/vk_scheduler.h
@@ -0,0 +1,69 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+#include "video_core/renderer_vulkan/declarations.h"
+
+namespace Vulkan {
+
+class VKDevice;
+class VKExecutionContext;
+class VKFence;
+class VKResourceManager;
+
+/// The scheduler abstracts command buffer and fence management with an interface that's able to do
+/// OpenGL-like operations on Vulkan command buffers.
+class VKScheduler {
+public:
+    explicit VKScheduler(const VKDevice& device, VKResourceManager& resource_manager);
+    ~VKScheduler();
+
+    /// Gets the current execution context.
+    [[nodiscard]] VKExecutionContext GetExecutionContext() const;
+
+    /// Sends the current execution context to the GPU. It invalidates the current execution context
+    /// and returns a new one.
+    VKExecutionContext Flush(vk::Semaphore semaphore = nullptr);
+
+    /// Sends the current execution context to the GPU and waits for it to complete. It invalidates
+    /// the current execution context and returns a new one.
+    VKExecutionContext Finish(vk::Semaphore semaphore = nullptr);
+
+private:
+    void SubmitExecution(vk::Semaphore semaphore);
+
+    void AllocateNewContext();
+
+    const VKDevice& device;
+    VKResourceManager& resource_manager;
+    vk::CommandBuffer current_cmdbuf;
+    VKFence* current_fence = nullptr;
+    VKFence* next_fence = nullptr;
+};
+
+class VKExecutionContext {
+    friend class VKScheduler;
+
+public:
+    VKExecutionContext() = default;
+
+    VKFence& GetFence() const {
+        return *fence;
+    }
+
+    vk::CommandBuffer GetCommandBuffer() const {
+        return cmdbuf;
+    }
+
+private:
+    explicit VKExecutionContext(VKFence* fence, vk::CommandBuffer cmdbuf)
+        : fence{fence}, cmdbuf{cmdbuf} {}
+
+    VKFence* fence{};
+    vk::CommandBuffer cmdbuf;
+};
+
+} // namespace Vulkan