42 lines
1.7 KiB
C++
42 lines
1.7 KiB
C++
#pragma once
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#include <map>
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#include <string>
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#include <glad/glad.h>
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#include <stb_image.h>
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#include "texture.h"
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#include "shader.h"
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// A static singleton ResourceManager class that hosts several
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// functions to load Textures and Shaders. Each loaded Texture
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// and/or shader is also stored for future reference by string
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// handles. All functions and resources are static and no
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// public constructor is defined.
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class ResourceManager
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{
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public:
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// Resource storage
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static std::map<std::string, Shader> Shaders;
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static std::map<std::string, Texture> Textures;
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// Loads (and generates) a shader program from file loading vertex, fragment (and geometry) shader's source code. If gShaderFile is not nullptr, it also loads a geometry shader
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static Shader LoadShader(const GLchar* vShaderFile, const GLchar* fShaderFile, const GLchar* gShaderFile, std::string name);
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// Retrieves a stored sader
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static Shader GetShader(std::string name);
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// Loads (and generates) a Texture from file
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static Texture LoadTexture(const GLchar* file, std::string name);
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// Retrieves a stored Texture
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static Texture GetTexture(std::string name);
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// Properly de-allocates all loaded resources
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static void Clear();
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private:
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// Private constructor, that is we do not want any actual resource manager objects. Its members and functions should be publicly available (static).
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ResourceManager() { }
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// Loads and generates a shader from file
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static Shader loadShaderFromFile(const GLchar* vShaderFile, const GLchar* fShaderFile, const GLchar* gShaderFile = nullptr);
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// Loads a single Texture from file
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static Texture loadTextureFromFile(const GLchar* file);
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};
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