IndexBuffer.h

// Copyright 2022 ShenMian
// License(Apache-2.0)
 
#pragma once
 
#include "Buffer.h"
#include <cstdint>
#include <memory>
#include <span>
#include <vector>
 
class IndexBuffer
{
public:
    [[nodiscard]] static std::shared_ptr<IndexBuffer> create(std::span<const uint32_t> data,
                                                             Buffer::Usage             usage = Buffer::Usage::Static);
 
    [[nodiscard]] static std::shared_ptr<IndexBuffer> create(const uint32_t* data, size_t size,
                                                             Buffer::Usage usage = Buffer::Usage::Static);
 
    [[nodiscard]] size_t get_size() const;
 
    [[nodiscard]] uint32_t get_count() const;
 
    virtual Buffer& get_buffer() = 0;
 
protected:
    IndexBuffer(const void* data, size_t size);
 
private:
    size_t   size_;
    uint32_t count_;
};