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#ifndef QUEUE_STATE_HH_
#define QUEUE_STATE_HH_
#include "context.hh"
#include "device_context.hh"
#include "timestamp_pool.hh"
#include <vulkan/utility/vk_dispatch_table.h>
#include <vulkan/vulkan.hpp>
#include <chrono>
#include <deque>
#include <memory>
#include <unordered_set>
namespace low_latency {
class QueueContext final : public Context {
public:
DeviceContext& device_context;
const VkQueue queue;
const std::uint32_t queue_family_index;
// I used to use these to signal when we could read timestamps until
// I realised you could use hostQueryReset.
std::uint64_t semaphore_sequence = 0;
VkSemaphore semaphore;
VkCommandPool command_pool;
std::unique_ptr<TimestampPool> timestamp_pool;
private:
static constexpr auto MAX_TRACKED_TIMINGS = 50;
// Potentially in flight queue submissions
struct Submission {
const std::unordered_set<VkSemaphore> signals;
const std::unordered_set<VkSemaphore> waits;
const std::shared_ptr<TimestampPool::Handle> start_handle;
const std::shared_ptr<TimestampPool::Handle> end_handle;
std::uint64_t sequence;
bool end_of_frame_marker = false;
std::string debug;
};
std::deque<std::shared_ptr<Submission>> submissions;
// In flight frames!
// These might come from different contexts.
struct Frame {
struct Timepoint {
const QueueContext& context;
const std::shared_ptr<TimestampPool::Handle> handle;
std::uint64_t sequence;
};
const Timepoint start;
const Timepoint end;
};
std::deque<std::unique_ptr<Frame>> in_flight_frames;
struct Timing {
DeviceContext::Clock::time_point_t gpu_start;
DeviceContext::Clock::time_point_t gpu_end;
DeviceContext::Clock::time_point_t::duration gpu_time;
std::unique_ptr<Frame> frame;
};
std::deque<std::unique_ptr<Timing>> timings;
private:
void process_frames();
public:
QueueContext(DeviceContext& device_context, const VkQueue& queue,
const std::uint32_t& queue_family_index);
virtual ~QueueContext();
public:
void
notify_submit(const VkSubmitInfo& info,
const std::uint64_t& sequence,
const std::shared_ptr<TimestampPool::Handle> head_handle,
const std::shared_ptr<TimestampPool::Handle> tail_handle);
void
notify_submit(const VkSubmitInfo2& info,
const std::uint64_t& sequence,
const std::shared_ptr<TimestampPool::Handle> head_handle,
const std::shared_ptr<TimestampPool::Handle> tail_handle);
void notify_present(const VkPresentInfoKHR& info);
public:
void sleep_in_present();
};
}; // namespace low_latency
#endif
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