shader.hpp

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#pragma once
#include <xcal/public.h>
 
#include <xcal/render/impl/opengl/core/typedef.hpp>
namespace xcal::render::opengl::GL {
class XCAL_API Shader {
    friend class Object;
    friend class xcal::render::opengl::GL::ShaderProgram;
 
   private:
    gl::GLuint shader_ = 0;
    gl::GLenum type_;
 
   private:
    Shader(const Shader &) = delete;
    Shader(Shader &&o) { _STD swap(shader_, o.shader_); }
    Shader &operator=(const Shader &) = delete;
    Shader &operator=(Shader &&o) {
        _STD swap(shader_, o.shader_);
        return *this;
    }
 
   public:
    Shader(gl::GLenum type) : type_(type) {};
    Shader(gl::GLenum type, gl::GLuint shader)
        : type_{type}, shader_(shader) {};
    ~Shader() { destroy(); };
 
   public:
    bool is_valid() const { return shader_ != 0; };
 
   public:
    void swap(Shader &o) { _STD swap(shader_, o.shader_); }
    void destroy();
 
   public:
    static Shader from_source(gl::GLenum type, std::string_view source);
    static Shader from_file(gl::GLenum type, std::string_view file_path);
};
 
}  // namespace xcal::render::opengl::GL