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/*
* Copyright (c) 2008-2017, NVIDIA CORPORATION. All rights reserved.
*
* NVIDIA CORPORATION and its licensors retain all intellectual property
* and proprietary rights in and to this software, related documentation
* and any modifications thereto. Any use, reproduction, disclosure or
* distribution of this software and related documentation without an express
* license agreement from NVIDIA CORPORATION is strictly prohibited.
*/
#ifndef RESOURCE_MANAGER_H
#define RESOURCE_MANAGER_H
#include <vector>
#include <string>
#include <map>
#include <memory>
#include "DirectXTex.h"
struct Resource
{
private:
Resource& operator = (const Resource&);
};
struct ShaderFileResource : public Resource
{
ShaderFileResource(const std::string& p) : path(p) {}
std::string path;
};
struct TextureResource : public Resource
{
DirectX::TexMetadata metaData;
DirectX::ScratchImage image;
};
/**
ResourceManager used to look for files in provided dirs (see addSearchDir). Also it loads resources and caches them.
*/
class ResourceManager
{
public:
//////// ctor ////////
ResourceManager();
~ResourceManager();
//////// public API ////////
bool addSearchDir(const char* dir, bool recursive = true);
const ShaderFileResource* requestShaderFile(const char* name);
const TextureResource* requestTexture(const char* name);
bool findFile(std::string fileName, std::string& foundPath);
bool findFile(std::string fileName, const std::vector<const char*>& exts, char* foundPath);
private:
//////// internal methods ////////
enum ResourceType
{
eSHADER_FILE,
eTEXTURE
};
const Resource* requestResource(ResourceType type, const char* name);
bool findFileInDir(std::string fileNameFull, const char* path, bool recursive, char* foundPath);
struct SearchDir
{
SearchDir(std::string path_, bool recursive_) : path(path_), recursive(recursive_) {}
std::string path;
bool recursive;
};
//////// internal data ////////
std::vector<SearchDir> m_searchDirs;
std::map<std::pair<ResourceType, std::string>, std::shared_ptr<Resource>> m_loadedResources;
};
#endif
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