Move everything into a separate futatabi/ subdir, for the upcoming merge with Futatabi.

[nageru] / nageru / basic_stats.h

diff --git a/nageru/basic_stats.h b/nageru/basic_stats.h
new file mode 100644 (file)
index 0000000..bff7881
--- /dev/null
+++ b/nageru/basic_stats.h
@@ -0,0 +1,53 @@
+#ifndef _BASIC_STATS_H
+#define _BASIC_STATS_H
+
+// Holds some metrics for basic statistics about uptime, memory usage and such.
+
+#include <stdint.h>
+
+#include <atomic>
+#include <chrono>
+#include <memory>
+
+extern bool uses_mlock;
+
+class GPUMemoryStats;
+
+class BasicStats {
+public:
+       BasicStats(bool verbose, bool use_opengl);
+       void update(int frame_num, int stats_dropped_frames);
+
+private:
+       std::chrono::steady_clock::time_point start;
+       bool verbose;
+       std::unique_ptr<GPUMemoryStats> gpu_memory_stats;
+
+       // Metrics.
+       std::atomic<int64_t> metric_frames_output_total{0};
+       std::atomic<int64_t> metric_frames_output_dropped{0};
+       std::atomic<double> metric_start_time_seconds{0.0 / 0.0};
+       std::atomic<int64_t> metrics_memory_used_bytes{0};
+       std::atomic<double> metrics_memory_locked_limit_bytes{0.0 / 0.0};
+};
+
+// Holds some metrics for GPU memory usage. Currently only exposed for NVIDIA cards
+// (no-op on all other platforms).
+
+class GPUMemoryStats {
+public:
+       GPUMemoryStats(bool verbose);
+       void update();
+
+private:
+       bool verbose, supported;
+
+       // Metrics.
+       std::atomic<int64_t> metric_memory_gpu_total_bytes{0};
+       std::atomic<int64_t> metric_memory_gpu_dedicated_bytes{0};
+       std::atomic<int64_t> metric_memory_gpu_used_bytes{0};
+       std::atomic<int64_t> metric_memory_gpu_evicted_bytes{0};
+       std::atomic<int64_t> metric_memory_gpu_evictions{0};
+};
+
+#endif  // !defined(_BASIC_STATS_H)