Ajout du GUI

kivy/graphics/gl_debug_logger.pxi

@@ -0,0 +1,13 @@
+from kivy.logger import Logger
+include "../include/config.pxi"
+
+from kivy.graphics.cgl cimport cgl
+import os
+cdef int env_debug_gl = "DEBUG_GL" in os.environ
+
+cdef inline void log_gl_error(str note):
+    if env_debug_gl:
+        ret = cgl.glGetError()
+        if ret:
+            Logger.error("OpenGL Error: {note} {ret1} / {ret2}".format(
+                note=note, ret1=ret, ret2=hex(ret)))