/* * Copyright (C) 2021 Christopher J. Howard * * This file is part of Antkeeper source code. * * Antkeeper source code 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. * * Antkeeper source code is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Antkeeper source code. If not, see . */ #ifndef ANTKEEPER_GL_BUFFER_USAGE_HPP #define ANTKEEPER_GL_BUFFER_USAGE_HPP namespace gl { /** * Usage hints for vertex buffers. * * @see gl::vertex_buffer */ enum class buffer_usage { /// Data will be modified once, by the application, and used at most a few times, for drawing commands. stream_draw, /// Data will be modified once, by reading data from the GL, and used at most a few times, to return that data to the application. stream_read, /// Data will be modified once, by reading data from the GL, and used at most a few times, for drawing commands. stream_copy, /// Data will be modified once, by the application, and used many times, for drawing commands. static_draw, /// Data will be modified once, by reading data from the GL, and used many times, to return that data to the application. static_read, /// Data will be modified once, by reading data from the GL, and many times, for drawing commands. static_copy, /// Data will be modified repeatedly, by the application, and used many times, for drawing commands. dynamic_draw, /// Data will be modified repeatedly, by reading data from the GL, and used many times, to return that data to the application. dynamic_read, /// Data will be modified repeatedly, by reading data from the GL, and used many times, for drawing commands. dynamic_copy }; } // namespace gl #endif // ANTKEEPER_GL_BUFFER_USAGE_HPP