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// Copyright 2023 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <chrono>
#include <filesystem>
#include <map>
#include <string>
namespace VideoCommon
{
struct MaterialData;
struct MeshData;
struct PixelShaderData;
struct TextureData;
// This class provides functionality to load
// specific data (like textures). Where this data
// is loaded from is implementation defined
class CustomAssetLibrary
{
public:
using TimeType = std::chrono::system_clock::time_point;
// The AssetID is a unique identifier for a particular asset
using AssetID = std::string;
struct LoadInfo
{
std::size_t m_bytes_loaded = 0;
TimeType m_load_time = {};
};
virtual ~CustomAssetLibrary() = default;
// Loads a texture, if there are no levels, bytes loaded will be empty
virtual LoadInfo LoadTexture(const AssetID& asset_id, TextureData* data) = 0;
// Gets the last write time for a given asset id
virtual TimeType GetLastAssetWriteTime(const AssetID& asset_id) const = 0;
// Loads a texture as a game texture, providing additional checks like confirming
// each mip level size is correct and that the format is consistent across the data
LoadInfo LoadGameTexture(const AssetID& asset_id, TextureData* data);
// Loads a pixel shader
virtual LoadInfo LoadPixelShader(const AssetID& asset_id, PixelShaderData* data) = 0;
// Loads a material
virtual LoadInfo LoadMaterial(const AssetID& asset_id, MaterialData* data) = 0;
// Loads a mesh
virtual LoadInfo LoadMesh(const AssetID& asset_id, MeshData* data) = 0;
};
} // namespace VideoCommon
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