EU7 scenery format and models streaming

scene/eu7/eu7_load_stats.h

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+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include <chrono>
+#include <cstdint>
+
+namespace scene::eu7 {
+
+struct Eu7LoadStats {
+    double read_ms { 0.0 };
+    double scm_fallback_ms { 0.0 };
+    double place_fast_ms { 0.0 };
+    double place_full_ms { 0.0 };
+    double terr_ms { 0.0 };
+    double mesh_ms { 0.0 };
+    double line_ms { 0.0 };
+    double trak_ms { 0.0 };
+    double trac_ms { 0.0 };
+    double power_ms { 0.0 };
+    double model_ms { 0.0 };
+    double memcell_ms { 0.0 };
+    double launcher_ms { 0.0 };
+    double dynamic_ms { 0.0 };
+    double sound_ms { 0.0 };
+    double event_ms { 0.0 };
+    double trainset_ms { 0.0 };
+    double first_init_ms { 0.0 };
+
+    std::uint64_t module_visits { 0 };
+    std::uint64_t module_applied { 0 };
+    std::uint64_t module_deduped { 0 };
+    std::uint64_t module_read { 0 };
+    std::uint64_t module_cache_hit { 0 };
+    std::uint64_t model_fast_path { 0 };
+    std::uint64_t module_full_path { 0 };
+    std::uint64_t scm_fallback { 0 };
+    std::uint64_t models { 0 };
+    std::uint64_t tracks { 0 };
+    std::uint64_t traction { 0 };
+    std::uint64_t power_sources { 0 };
+    std::uint64_t memcells { 0 };
+    std::uint64_t launchers { 0 };
+    std::uint64_t dynamics { 0 };
+    std::uint64_t sounds { 0 };
+    std::uint64_t events { 0 };
+    std::uint64_t trainsets { 0 };
+    std::uint64_t pack_skipped_includes { 0 };
+    std::uint64_t pack_sections_loaded { 0 };
+    std::uint64_t pack_models { 0 };
+    std::uint64_t pack_skipped_models { 0 };
+
+    [[nodiscard]] double total_ms() const;
+};
+
+class ScopedTimer {
+public:
+    explicit ScopedTimer( double &Target );
+    ~ScopedTimer();
+
+    ScopedTimer( ScopedTimer const & ) = delete;
+    ScopedTimer &operator=( ScopedTimer const & ) = delete;
+
+private:
+    double &m_target;
+    std::chrono::steady_clock::time_point m_start;
+};
+
+[[nodiscard]] Eu7LoadStats &
+load_stats();
+
+void
+reset_load_stats();
+
+void
+log_load_stats();
+
+} // namespace scene::eu7