suyu/src/video_core/renderer_vulkan/vk_scheduler.h
ReinUsesLisp 86a874a2fc vk_scheduler: Drop execution context in favor of views
Instead of passing by copy an execution context through out the whole
Vulkan call hierarchy, use a command buffer view and fence view
approach.

This internally dereferences the command buffer or fence forcing the
user to be unable to use an outdated version of it on normal usage.
It is still possible to keep store an outdated if it is casted to
VKFence& or vk::CommandBuffer.

While changing this file, add an extra parameter for Flush and Finish to
allow releasing the fence from this calls.
2019-07-07 03:30:22 -03:00

85 lines
2.1 KiB
C++

// 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 VKFence;
class VKResourceManager;
class VKFenceView {
public:
VKFenceView() = default;
VKFenceView(VKFence* const& fence) : fence{fence} {}
VKFence* operator->() const noexcept {
return fence;
}
operator VKFence&() const noexcept {
return *fence;
}
private:
VKFence* const& fence;
};
class VKCommandBufferView {
public:
VKCommandBufferView() = default;
VKCommandBufferView(const vk::CommandBuffer& cmdbuf) : cmdbuf{cmdbuf} {}
const vk::CommandBuffer* operator->() const noexcept {
return &cmdbuf;
}
operator vk::CommandBuffer() const noexcept {
return cmdbuf;
}
private:
const vk::CommandBuffer& cmdbuf;
};
/// 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 a reference to the current fence.
VKFenceView GetFence() const {
return current_fence;
}
/// Gets a reference to the current command buffer.
VKCommandBufferView GetCommandBuffer() const {
return current_cmdbuf;
}
/// Sends the current execution context to the GPU.
void Flush(bool release_fence = true, vk::Semaphore semaphore = nullptr);
/// Sends the current execution context to the GPU and waits for it to complete.
void Finish(bool release_fence = true, 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;
};
} // namespace Vulkan