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#ifndef DEVICE_CONTEXT_HH_
#define DEVICE_CONTEXT_HH_
#include <chrono>
#include <memory>
#include <unordered_map>
#include <vulkan/utility/vk_dispatch_table.h>
#include <vulkan/vk_layer.h>
#include <vulkan/vulkan.hpp>
#include <vulkan/vulkan_core.h>
#include "context.hh"
#include "instance_context.hh"
#include "physical_device_context.hh"
namespace low_latency {
class QueueContext;
struct DeviceContext final : public Context {
public:
InstanceContext& instance;
PhysicalDeviceContext& physical_device;
const bool was_antilag_requested;
const VkDevice device;
const VkuDeviceDispatchTable vtable;
std::unordered_map<VkQueue, std::shared_ptr<QueueContext>> queues;
struct Clock {
public:
using time_point_t = std::chrono::time_point<std::chrono::steady_clock,
std::chrono::nanoseconds>;
const DeviceContext& device;
public:
std::uint64_t host_ns;
std::uint64_t error_bound;
std::uint64_t device_ticks;
public:
Clock(const DeviceContext& device);
~Clock();
public:
// WARNING: This *MUST* be used over std::chrono::steady_clock::now if
// you're planning on comparing it to a device's clock. If it isn't, the
// timestamps might from different domains and will be completely
// nonsensical.
static time_point_t now();
public:
void calibrate();
time_point_t ticks_to_time(const std::uint64_t& ticks) const;
};
std::unique_ptr<Clock> clock;
std::uint32_t antilag_fps = 0; // TODO
VkAntiLagModeAMD antilag_mode = VK_ANTI_LAG_MODE_DRIVER_CONTROL_AMD;
// The queue used in the last present.
std::shared_ptr<QueueContext> present_queue;
private:
void sleep_in_input();
public:
DeviceContext(InstanceContext& parent_instance,
PhysicalDeviceContext& parent_physical,
const VkDevice& device, const bool was_antilag_requested,
VkuDeviceDispatchTable&& vtable);
virtual ~DeviceContext();
public:
void notify_antilag_update(const VkAntiLagDataAMD& data);
void notify_queue_present(const QueueContext& queue);
};
}; // namespace low_latency
#endif
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