memory_stats.h

#pragma once

#include "core/debug/debug_window.h"
#include "util/string.h"
#include "util/map.h"
#include "util/ring_buffer.h"
#include "util/utility.h"
#include "util/vector.h"
#include "renderer/imgui/imgui.h"

#define BLOWBOX_PROFILER_HISTORY_MAX_SAMPLE_COUNT 2000
#define BLOWBOX_PROFILER_HISTORY_MIN_SAMPLE_COUNT 2

namespace blowbox
{
    class GpuResource;

    class MemoryStats : public DebugWindow
    {
    public:
        MemoryStats();
        ~MemoryStats();

        void RenderMenu() override;

        void RenderWindow() override;

        void NewFrame();

    private:
        float last_bounds_reset_time_;                                                      
        float bounds_reset_interval_;                                                       
        int history_sample_count_;                                                          

    private:
        bool show_window_;                                                                  

        RingBuffer<uint64_t> ram_usage_history_;                                            
        float ram_usage_history_contiguous_[BLOWBOX_PROFILER_HISTORY_MAX_SAMPLE_COUNT];     
        uint64_t ram_usage_history_upper_bound_;                                            
        uint64_t ram_usage_history_lower_bound_;                                            
        uint64_t ram_operating_system_budget_;                                              
        uint64_t ram_average_usage_;                                                        

        RingBuffer<uint64_t> vram_usage_history_;                                           
        float vram_usage_history_contiguous_[BLOWBOX_PROFILER_HISTORY_MAX_SAMPLE_COUNT];    
        uint64_t vram_usage_history_upper_bound_;                                           
        uint64_t vram_usage_history_lower_bound_;                                           
        uint64_t vram_operating_system_budget_;                                             
        uint64_t vram_average_usage_;                                                       
    };
}