def thread_main(instance):
# sys.stderr.write("Starting thread_main\n")
GLUT.glutInit(sys.argv)
GLUT.glutInitContextVersion(3, 3)
GLUT.glutInitContextFlags(GLUT.GLUT_FORWARD_COMPATIBLE)
GLUT.glutInitContextProfile(GLUT.GLUT_CORE_PROFILE)
GLUT.glutSetOption(GLUT.GLUT_ACTION_ON_WINDOW_CLOSE,
GLUT.GLUT_ACTION_GLUTMAINLOOP_RETURNS)
GLUT.glutInitDisplayMode(GLUT.GLUT_RGBA | GLUT.GLUT_DOUBLE
| GLUT.GLUT_DEPTH)
# sys.stderr.write("Making default GLUT window.\n")
GLUT.glutInitWindowSize(instance.width, instance.height)
GLUT.glutInitWindowPosition(0, 0)
instance.window = GLUT.glutCreateWindow(
bytes(instance._title, encoding='UTF-8'))
# Urgh.... according to the docs, I'm MUST register a display function
# for any GLUT window I create. But... I don't want to do this until
# later (in self.__init__). So, register a null function now,
# and hope that registering a new function is an OK thing to do.
GLUT.glutDisplayFunc(lambda: None)
# Not sure if I want this as a timer or an idle func
GLUT.glutIdleFunc(lambda: GLUTContext.class_idle())
# GLUT.glutTimerFunc(10, lambda val : GLUTContext.class_idle(), 0)
sys.stderr.write("Going into GLUT.GLUT main loop.\n")
GLUTContext._class_init = True
GLUT.glutMainLoop()
def init_glut(self, args):
"""Initialize the GLUT state."""
# Initialize GLUT.
GLUT.glutInit(args)
GLUT.glutInitContextVersion(
self.context_version[0], self.context_version[1])
GLUT.glutInitContextFlags(GLUT.GLUT_FORWARD_COMPATIBLE)
GLUT.glutInitContextProfile(GLUT.GLUT_CORE_PROFILE)
GLUT.glutSetOption(
GLUT.GLUT_ACTION_ON_WINDOW_CLOSE,
GLUT.GLUT_ACTION_GLUTMAINLOOP_RETURNS)
# Initialize and create the main window.
GLUT.glutInitDisplayMode(
GLUT.GLUT_DOUBLE | GLUT.GLUT_RGBA | GLUT.GLUT_DEPTH)
GLUT.glutInitWindowSize(
self.window_size[0], self.window_size[1])
GLUT.glutInitWindowPosition(
self.window_position[0], self.window_position[1])
GLUT.glutCreateWindow(self.window_title)
GLUT.glutDisplayFunc(self.render)
GLUT.glutIdleFunc(self.idle)
GLUT.glutReshapeFunc(self.resize)
GLUT.glutKeyboardFunc(self.keyboard)
GLUT.glutTimerFunc(0, self.timer, 0)
GLUT.glutMouseFunc(self.mouse)
GLUT.glutMotionFunc(self.motion)
GLUT.glutCloseFunc(self.cleanup)
aspects = [('Vendor', GL.GL_VENDOR),
('Renderer', GL.GL_RENDERER),
('Version', GL.GL_VERSION),]
if self.context_version[0] > 1:
aspects.append(('GLSL', GL.GL_SHADING_LANGUAGE_VERSION))
for i in aspects:
print('{}: {}'.format(i[0],
GL.glGetString(i[1]).decode()),
file=sys.stderr, flush=True)
def __init__(self, shader_programs=None, version=(3, 3)):
try:
GLUT.glutInit([])
except:
print("freeglut missing, try "
"'sudo apt-get install freeglut3' or similar")
sys.exit(1)
# make a window
GLUT.glutInitContextVersion(version[0], version[1])
GLUT.glutInitContextFlags(GLUT.GLUT_FORWARD_COMPATIBLE)
GLUT.glutInitContextProfile(GLUT.GLUT_COMPATIBILITY_PROFILE)
GLUT.glutInitContextProfile(GLUT.GLUT_CORE_PROFILE)
GLUT.glutInitDisplayMode(GLUT.GLUT_RGBA | GLUT.GLUT_DOUBLE
| GLUT.GLUT_DEPTH)
GLUT.glutInitWindowSize(self.viewport[2], self.viewport[3])
self.window = GLUT.glutCreateWindow("pyopengl with glut")
GLUT.glutDisplayFunc(self.render)
GLUT.glutIdleFunc(self.render)
