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// Copyright 2016 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <memory>
#include "Common/CommonTypes.h"
#include "VideoBackends/Vulkan/Constants.h"
#include "VideoCommon/PerfQueryBase.h"
namespace Vulkan
{
class StagingBuffer;
class PerfQuery : public PerfQueryBase
{
public:
PerfQuery();
~PerfQuery();
static PerfQuery* GetInstance();
bool Initialize();
void EnableQuery(PerfQueryGroup type) override;
void DisableQuery(PerfQueryGroup type) override;
void ResetQuery() override;
u32 GetQueryResult(PerfQueryType type) override;
void FlushResults() override;
bool IsFlushed() const override;
private:
struct ActiveQuery
{
PerfQueryType query_type;
VkFence pending_fence;
bool available;
bool active;
};
bool CreateQueryPool();
bool CreateReadbackBuffer();
void QueueCopyQueryResults(VkCommandBuffer command_buffer, VkFence fence, u32 start_index,
u32 query_count);
void ProcessResults(u32 start_index, u32 query_count);
void OnCommandBufferQueued(VkCommandBuffer command_buffer, VkFence fence);
void OnCommandBufferExecuted(VkFence fence);
void NonBlockingPartialFlush();
void BlockingPartialFlush();
// when testing in SMS: 64 was too small, 128 was ok
// TODO: This should be size_t, but the base class uses u32s
using PerfQueryDataType = u32;
static const u32 PERF_QUERY_BUFFER_SIZE = 512;
std::array<ActiveQuery, PERF_QUERY_BUFFER_SIZE> m_query_buffer = {};
u32 m_query_read_pos = 0;
// TODO: Investigate using pipeline statistics to implement other query types
VkQueryPool m_query_pool = VK_NULL_HANDLE;
// Buffer containing query results. Each query is a u32.
std::unique_ptr<StagingBuffer> m_readback_buffer;
};
} // namespace Vulkan
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