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| author | shadchin <shadchin@yandex-team.ru> | 2022-02-10 16:44:30 +0300 |
|---|---|---|
| committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:44:30 +0300 |
| commit | 2598ef1d0aee359b4b6d5fdd1758916d5907d04f (patch) | |
| tree | 012bb94d777798f1f56ac1cec429509766d05181 /contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/glut.py | |
| parent | 6751af0b0c1b952fede40b19b71da8025b5d8bcf (diff) | |
| download | ydb-2598ef1d0aee359b4b6d5fdd1758916d5907d04f.tar.gz | |
Restoring authorship annotation for <shadchin@yandex-team.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/glut.py')
| -rw-r--r-- | contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/glut.py | 280 |
1 files changed, 140 insertions, 140 deletions
diff --git a/contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/glut.py b/contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/glut.py index f6d54a55b4..6715c77fd8 100644 --- a/contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/glut.py +++ b/contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/glut.py @@ -1,140 +1,140 @@ -"""GLUT Input hook for interactive use with prompt_toolkit -""" - - -# GLUT is quite an old library and it is difficult to ensure proper -# integration within IPython since original GLUT does not allow to handle -# events one by one. Instead, it requires for the mainloop to be entered -# and never returned (there is not even a function to exit he -# mainloop). Fortunately, there are alternatives such as freeglut -# (available for linux and windows) and the OSX implementation gives -# access to a glutCheckLoop() function that blocks itself until a new -# event is received. This means we have to setup the idle callback to -# ensure we got at least one event that will unblock the function. -# -# Furthermore, it is not possible to install these handlers without a window -# being first created. We choose to make this window invisible. This means that -# display mode options are set at this level and user won't be able to change -# them later without modifying the code. This should probably be made available -# via IPython options system. - -import sys -import time -import signal -import OpenGL.GLUT as glut -import OpenGL.platform as platform -from timeit import default_timer as clock - -# Frame per second : 60 -# Should probably be an IPython option -glut_fps = 60 - -# Display mode : double buffeed + rgba + depth -# Should probably be an IPython option -glut_display_mode = (glut.GLUT_DOUBLE | - glut.GLUT_RGBA | - glut.GLUT_DEPTH) - -glutMainLoopEvent = None -if sys.platform == 'darwin': - try: - glutCheckLoop = platform.createBaseFunction( - 'glutCheckLoop', dll=platform.GLUT, resultType=None, - argTypes=[], - doc='glutCheckLoop( ) -> None', - argNames=(), - ) - except AttributeError: - raise RuntimeError( - '''Your glut implementation does not allow interactive sessions''' - '''Consider installing freeglut.''') - glutMainLoopEvent = glutCheckLoop -elif glut.HAVE_FREEGLUT: - glutMainLoopEvent = glut.glutMainLoopEvent -else: - raise RuntimeError( - '''Your glut implementation does not allow interactive sessions. ''' - '''Consider installing freeglut.''') - - -def glut_display(): - # Dummy display function - pass - -def glut_idle(): - # Dummy idle function - pass - -def glut_close(): - # Close function only hides the current window - glut.glutHideWindow() - glutMainLoopEvent() - -def glut_int_handler(signum, frame): - # Catch sigint and print the defaultipyt message - signal.signal(signal.SIGINT, signal.default_int_handler) - print('\nKeyboardInterrupt') - # Need to reprint the prompt at this stage - -# Initialisation code -glut.glutInit( sys.argv ) -glut.glutInitDisplayMode( glut_display_mode ) -# This is specific to freeglut -if bool(glut.glutSetOption): - glut.glutSetOption( glut.GLUT_ACTION_ON_WINDOW_CLOSE, - glut.GLUT_ACTION_GLUTMAINLOOP_RETURNS ) -glut.glutCreateWindow( b'ipython' ) -glut.glutReshapeWindow( 1, 1 ) -glut.glutHideWindow( ) -glut.glutWMCloseFunc( glut_close ) -glut.glutDisplayFunc( glut_display ) -glut.glutIdleFunc( glut_idle ) - - -def inputhook(context): - """Run the pyglet event loop by processing pending events only. - - This keeps processing pending events until stdin is ready. After - processing all pending events, a call to time.sleep is inserted. This is - needed, otherwise, CPU usage is at 100%. This sleep time should be tuned - though for best performance. - """ - # We need to protect against a user pressing Control-C when IPython is - # idle and this is running. We trap KeyboardInterrupt and pass. - - signal.signal(signal.SIGINT, glut_int_handler) - - try: - t = clock() - - # Make sure the default window is set after a window has been closed - if glut.glutGetWindow() == 0: - glut.glutSetWindow( 1 ) - glutMainLoopEvent() - return 0 - - while not context.input_is_ready(): - glutMainLoopEvent() - # We need to sleep at this point to keep the idle CPU load - # low. However, if sleep to long, GUI response is poor. As - # a compromise, we watch how often GUI events are being processed - # and switch between a short and long sleep time. Here are some - # stats useful in helping to tune this. - # time CPU load - # 0.001 13% - # 0.005 3% - # 0.01 1.5% - # 0.05 0.5% - used_time = clock() - t - if used_time > 10.0: - # print 'Sleep for 1 s' # dbg - time.sleep(1.0) - elif used_time > 0.1: - # Few GUI events coming in, so we can sleep longer - # print 'Sleep for 0.05 s' # dbg - time.sleep(0.05) - else: - # Many GUI events coming in, so sleep only very little - time.sleep(0.001) - except KeyboardInterrupt: - pass +"""GLUT Input hook for interactive use with prompt_toolkit +""" + + +# GLUT is quite an old library and it is difficult to ensure proper +# integration within IPython since original GLUT does not allow to handle +# events one by one. Instead, it requires for the mainloop to be entered +# and never returned (there is not even a function to exit he +# mainloop). Fortunately, there are alternatives such as freeglut +# (available for linux and windows) and the OSX implementation gives +# access to a glutCheckLoop() function that blocks itself until a new +# event is received. This means we have to setup the idle callback to +# ensure we got at least one event that will unblock the function. +# +# Furthermore, it is not possible to install these handlers without a window +# being first created. We choose to make this window invisible. This means that +# display mode options are set at this level and user won't be able to change +# them later without modifying the code. This should probably be made available +# via IPython options system. + +import sys +import time +import signal +import OpenGL.GLUT as glut +import OpenGL.platform as platform +from timeit import default_timer as clock + +# Frame per second : 60 +# Should probably be an IPython option +glut_fps = 60 + +# Display mode : double buffeed + rgba + depth +# Should probably be an IPython option +glut_display_mode = (glut.GLUT_DOUBLE | + glut.GLUT_RGBA | + glut.GLUT_DEPTH) + +glutMainLoopEvent = None +if sys.platform == 'darwin': + try: + glutCheckLoop = platform.createBaseFunction( + 'glutCheckLoop', dll=platform.GLUT, resultType=None, + argTypes=[], + doc='glutCheckLoop( ) -> None', + argNames=(), + ) + except AttributeError: + raise RuntimeError( + '''Your glut implementation does not allow interactive sessions''' + '''Consider installing freeglut.''') + glutMainLoopEvent = glutCheckLoop +elif glut.HAVE_FREEGLUT: + glutMainLoopEvent = glut.glutMainLoopEvent +else: + raise RuntimeError( + '''Your glut implementation does not allow interactive sessions. ''' + '''Consider installing freeglut.''') + + +def glut_display(): + # Dummy display function + pass + +def glut_idle(): + # Dummy idle function + pass + +def glut_close(): + # Close function only hides the current window + glut.glutHideWindow() + glutMainLoopEvent() + +def glut_int_handler(signum, frame): + # Catch sigint and print the defaultipyt message + signal.signal(signal.SIGINT, signal.default_int_handler) + print('\nKeyboardInterrupt') + # Need to reprint the prompt at this stage + +# Initialisation code +glut.glutInit( sys.argv ) +glut.glutInitDisplayMode( glut_display_mode ) +# This is specific to freeglut +if bool(glut.glutSetOption): + glut.glutSetOption( glut.GLUT_ACTION_ON_WINDOW_CLOSE, + glut.GLUT_ACTION_GLUTMAINLOOP_RETURNS ) +glut.glutCreateWindow( b'ipython' ) +glut.glutReshapeWindow( 1, 1 ) +glut.glutHideWindow( ) +glut.glutWMCloseFunc( glut_close ) +glut.glutDisplayFunc( glut_display ) +glut.glutIdleFunc( glut_idle ) + + +def inputhook(context): + """Run the pyglet event loop by processing pending events only. + + This keeps processing pending events until stdin is ready. After + processing all pending events, a call to time.sleep is inserted. This is + needed, otherwise, CPU usage is at 100%. This sleep time should be tuned + though for best performance. + """ + # We need to protect against a user pressing Control-C when IPython is + # idle and this is running. We trap KeyboardInterrupt and pass. + + signal.signal(signal.SIGINT, glut_int_handler) + + try: + t = clock() + + # Make sure the default window is set after a window has been closed + if glut.glutGetWindow() == 0: + glut.glutSetWindow( 1 ) + glutMainLoopEvent() + return 0 + + while not context.input_is_ready(): + glutMainLoopEvent() + # We need to sleep at this point to keep the idle CPU load + # low. However, if sleep to long, GUI response is poor. As + # a compromise, we watch how often GUI events are being processed + # and switch between a short and long sleep time. Here are some + # stats useful in helping to tune this. + # time CPU load + # 0.001 13% + # 0.005 3% + # 0.01 1.5% + # 0.05 0.5% + used_time = clock() - t + if used_time > 10.0: + # print 'Sleep for 1 s' # dbg + time.sleep(1.0) + elif used_time > 0.1: + # Few GUI events coming in, so we can sleep longer + # print 'Sleep for 0.05 s' # dbg + time.sleep(0.05) + else: + # Many GUI events coming in, so sleep only very little + time.sleep(0.001) + except KeyboardInterrupt: + pass |