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#ifndef QUEUE_STATE_HH_
#define QUEUE_STATE_HH_
#include "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 DeviceContext;
class QueueContext final : public Context {
public:
DeviceContext& device_context;
const VkQueue queue;
const std::uint32_t queue_family_index;
std::uint64_t semaphore_sequence = 0;
VkSemaphore semaphore;
VkCommandPool command_pool;
std::unique_ptr<TimestampPool> timestamp_pool;
// Potentially in flight queue submissions
struct Submission {
const std::unordered_set<VkSemaphore> signals;
const std::unordered_set<VkSemaphore> waits;
const std::uint64_t sequence;
const std::shared_ptr<TimestampPool::Handle> start_handle;
const std::shared_ptr<TimestampPool::Handle> end_handle;
};
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;
const std::uint64_t sequence;
};
const Timepoint start;
const Timepoint end;
};
std::deque<std::unique_ptr<Frame>> in_flight_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);
// TODO submit2
void notify_present(const VkPresentInfoKHR& info);
public:
// Computes the amount we should delay...
using duration_t = std::chrono::steady_clock::duration;
std::optional<duration_t> get_delay_time();
};
}; // namespace low_latency
#endif
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