From 681bd5096ee416b50dd7338de30af7b3db385a36 Mon Sep 17 00:00:00 2001
From: Nicolas James <nj3ahxac@gmail.com>
Date: Sun, 29 Mar 2026 20:44:23 +1100
Subject: Implement Reflex - break AntiLag in the process. Remove AntiLag1. WIP

---
 src/device_context.hh | 56 +++++++++++++--------------------------------------
 1 file changed, 14 insertions(+), 42 deletions(-)

(limited to 'src/device_context.hh')

diff --git a/src/device_context.hh b/src/device_context.hh
index 6b5f000..172801c 100644
--- a/src/device_context.hh
+++ b/src/device_context.hh
@@ -11,59 +11,30 @@
 #include <vulkan/vulkan_core.h>
 
 #include "context.hh"
+#include "device_clock.hh"
 #include "instance_context.hh"
 #include "physical_device_context.hh"
+#include "queue_context.hh"
+#include "swapchain_monitor.hh"
 
 namespace low_latency {
 
-class QueueContext;
-
-struct DeviceContext final : public Context {
+class DeviceContext final : public Context {
   public:
     InstanceContext& instance;
     PhysicalDeviceContext& physical_device;
 
-    const bool was_antilag_requested;
+    // Whether or not we were asked to do NV_VK_LowLatency2 or VK_AMD_anti_lag.
+    const bool was_capability_requested;
 
     const VkDevice device;
     const VkuDeviceDispatchTable vtable;
 
-    // Tiny struct to represent any swapchain's low latency state.
-    struct SwapchainInfo {
-        std::chrono::milliseconds present_delay = std::chrono::milliseconds{0};
-        bool was_low_latency_requested = false;
-    };
-    std::unordered_map<VkSwapchainKHR, SwapchainInfo> swapchain_infos{};
-
     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();
+    std::unique_ptr<DeviceClock> 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::unordered_map<VkSwapchainKHR, SwapchainMonitor> swapchain_monitors;
 
   public:
     DeviceContext(InstanceContext& parent_instance,
@@ -73,13 +44,14 @@ struct DeviceContext final : public Context {
     virtual ~DeviceContext();
 
   public:
-    void sleep_in_input();
-
     // Updates the settings associated with that swapchain. If none is provided
     // all swapchains are set to this value.
-    void update_swapchain_infos(const std::optional<VkSwapchainKHR> target,
-                                const std::chrono::milliseconds& present_delay,
-                                const bool was_low_latency_requested);
+    void update_params(const std::optional<VkSwapchainKHR> target,
+                       const std::chrono::milliseconds& present_delay,
+                       const bool was_low_latency_requested);
+
+    void notify_present(const VkSwapchainKHR& swapchain,
+                        const QueueContext::submissions_t& submissions);
 };
 
 }; // namespace low_latency
-- 
cgit v1.2.3