pyGLFW
======

This module provides Python bindings for `GLFW <http://www.glfw.org/>`__
(on GitHub: `glfw/glfw <http://github.com/glfw/glfw>`__). It is a
``ctypes`` wrapper which keeps very close to the original GLFW API,
except for:

-  function names use the pythonic ``words_with_underscores`` notation
   instead of ``camelCase``
-  ``GLFW_`` and ``glfw`` prefixes have been removed, as their function
   is replaced by the module namespace
-  structs have been replaced with Python sequences
-  functions like ``glfwGetMonitors`` return a list instead of a pointer
   and an object count
-  Gamma ramps use floats between 0.0 and 1.0 instead of unsigned shorts
-  GLFW errors are reported as ``glfw.GLFWError`` exceptions if no error
   callback is set (use ``glfw.ERROR_REPORTING=False`` to disable this)

Installation
------------

pyGLFW can be installed using pip:

.. code:: sh

    pip install glfw

To use the module, you also need to install the actual GLFW shared
library. Linux and macOS users should `compile the library from
source <http://www.glfw.org/docs/latest/compile.html>`__ (use
``-DBUILD_SHARED_LIBS=ON``) and Windows users can download binaries on
the `GLFW download site <http://www.glfw.org/download.html>`__.

Example Code
------------

The example from the `GLFW
documentation <http://www.glfw.org/documentation.html>`__ ported to
pyGLFW:

.. code:: python

    import glfw

    def main():
        # Initialize the library
        if not glfw.init():
            return
        # Create a windowed mode window and its OpenGL context
        window = glfw.create_window(640, 480, "Hello World", None, None)
        if not window:
            glfw.terminate()
            return

        # Make the window's context current
        glfw.make_context_current(window)

        # Loop until the user closes the window
        while not glfw.window_should_close(window):
            # Render here, e.g. using pyOpenGL

            # Swap front and back buffers
            glfw.swap_buffers(window)

            # Poll for and process events
            glfw.poll_events()

        glfw.terminate()

    if __name__ == "__main__":
        main()
