new file mode 100644
--- /dev/null
+++ b/pytouhou/lib/_glfw.pxd
@@ -0,0 +1,85 @@
+# -*- encoding: utf-8 -*-
+##
+## Copyright (C) 2016 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
+##
+## 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; version 3 only.
+##
+## This program 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.
+##
+
+cdef extern from "GLFW/glfw3.h" nogil:
+    ctypedef void* GLFWmonitor
+    ctypedef void* GLFWwindow
+
+    ctypedef void (* GLFWerrorfun)(int, const char*)
+    ctypedef void (* GLFWwindowclosefun)(GLFWwindow*)
+    ctypedef void (* GLFWframebuffersizefun)(GLFWwindow*,int,int)
+    ctypedef void (* GLFWkeyfun)(GLFWwindow*, int, int, int, int)
+
+    int glfwInit()
+    void glfwTerminate()
+
+    GLFWerrorfun glfwSetErrorCallback(GLFWerrorfun cbfun)
+
+    void glfwWindowHint(int hint, int value)
+    GLFWwindow* glfwCreateWindow(int width, int height, const char* title, GLFWmonitor* monitor, GLFWwindow* share)
+    void glfwDestroyWindow(GLFWwindow* window)
+    void glfwSetWindowShouldClose(GLFWwindow* window, int value)
+
+    GLFWmonitor* glfwGetPrimaryMonitor()
+    GLFWmonitor* glfwGetWindowMonitor(GLFWwindow* window)
+    void glfwSetWindowMonitor(GLFWwindow* window, GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate)
+
+    GLFWwindowclosefun glfwSetWindowCloseCallback(GLFWwindow* window, GLFWwindowclosefun cbfun)
+    GLFWframebuffersizefun glfwSetFramebufferSizeCallback(GLFWwindow* window, GLFWframebuffersizefun cbfun)
+    void glfwPollEvents()
+
+    bint glfwGetKey(GLFWwindow* window, int key)
+    GLFWkeyfun glfwSetKeyCallback(GLFWwindow* window, GLFWkeyfun cbfun)
+
+    void glfwMakeContextCurrent(GLFWwindow* window)
+    void glfwSwapBuffers(GLFWwindow* window)
+
+    ctypedef enum:
+        GLFW_DONT_CARE
+
+    ctypedef enum:
+        GLFW_KEY_Z
+        GLFW_KEY_X
+        GLFW_KEY_P
+        GLFW_KEY_LEFT_SHIFT
+        GLFW_KEY_UP
+        GLFW_KEY_DOWN
+        GLFW_KEY_LEFT
+        GLFW_KEY_RIGHT
+        GLFW_KEY_LEFT_CONTROL
+        GLFW_KEY_ESCAPE
+        GLFW_KEY_HOME
+        GLFW_KEY_ENTER
+        GLFW_KEY_F11
+
+    ctypedef enum:
+        GLFW_MOD_ALT
+
+    ctypedef enum:
+        GLFW_PRESS
+
+    ctypedef enum:
+        GLFW_CLIENT_API
+        GLFW_OPENGL_PROFILE
+        GLFW_CONTEXT_VERSION_MAJOR
+        GLFW_CONTEXT_VERSION_MINOR
+        GLFW_DEPTH_BITS
+        GLFW_ALPHA_BITS
+        GLFW_DOUBLEBUFFER
+        GLFW_RESIZABLE
+
+    ctypedef enum:
+        GLFW_OPENGL_API
+        GLFW_OPENGL_ES_API
+        GLFW_OPENGL_CORE_PROFILE