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#pragma once
#include <string>
#include <unordered_map>
#include <memory>
#include <glm/glm.hpp>
namespace Donut
{
class Shader
{
public:
virtual ~Shader() = default;
virtual void bind() const = 0;
virtual void unbind() const = 0;
virtual void set_int(const std::string& name, int value) = 0;
virtual void set_int_array(const std::string& name, int* values, uint32_t count) = 0;
virtual void set_float(const std::string& name, float value) = 0;
virtual void set_float3(const std::string& name, const glm::vec3& value) = 0;
virtual void set_float4(const std::string& name, const glm::vec4& value) = 0;
virtual void set_mat4(const std::string& name, const glm::mat4& value) = 0;
virtual const std::string& get_name() const = 0;
static Shader* create(const std::string& filepath);
static Shader* create(const std::string& name, const std::string& vertex_src, const std::string& fragment_src);
};
class ShaderLibrary
{
public:
void add(const std::shared_ptr<Shader>& shader);
void add(const std::string& name, const std::shared_ptr<Shader>& shader);
std::shared_ptr<Shader> load(const std::string& filepath);
std::shared_ptr<Shader> load(const std::string& name, const std::string& filepath);
std::shared_ptr<Shader> get(const std::string& name);
bool exists(const std::string& name) const;
private:
std::unordered_map<std::string, std::shared_ptr<Shader>> m_shaders;
};
};
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