/* This file is part of Zutty. * Copyright (C) 2020 Tom Szilagyi * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * See the file LICENSE for the full license. */ #include "gl.h" #include <string> namespace gl{   void CheckError_ (const char* file, int line)   {      GLenum error;      while ((error = glGetError ()) != GL_NO_ERROR) {         std::string estr;         switch (error) {         case GL_INVALID_ENUM:      estr = "INVALID_ENUM"; break;         case GL_INVALID_VALUE:     estr = "INVALID_VALUE"; break;         case GL_INVALID_OPERATION: estr = "INVALID_OPERATION"; break;         case GL_OUT_OF_MEMORY:     estr = "OUT_OF_MEMORY"; break;         default: estr = "glGetError() = " + std::to_string (error); break;         }         throw std::runtime_error (estr + " at " + file + ":" +                                   std::to_string (line));      }   } } // namespace gl