gstreamer/debug-viewer/GstDebugViewer/Plugins/Timeline.py
2014-09-11 20:51:39 +02:00

595 lines
17 KiB
Python

# -*- coding: utf-8; mode: python; -*-
#
# GStreamer Debug Viewer - View and analyze GStreamer debug log files
#
# Copyright (C) 2007 René Stadler <mail@renestadler.de>
#
# 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; either version 3 of the License, or (at your option)
# any later version.
#
# 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.
#
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <http://www.gnu.org/licenses/>.
"""GStreamer Debug Viewer timeline widget plugin."""
import logging
from GstDebugViewer import Common, Data, GUI
from GstDebugViewer.Plugins import *
import cairo
import gtk
def iter_model_reversed (model):
count = model.iter_n_children (None)
for i in xrange (count - 1, 0, -1):
yield model[i]
class LineFrequencySentinel (object):
def __init__ (self, model):
self.model = model
self.clear ()
def clear (self):
self.data = None
self.n_partitions = None
self.partitions = None
self.step = None
self.ts_range = (None, None,)
def _search_ts (self, target_ts, first_index, last_index):
model_get = self.model.get_value
model_iter_nth_child = self.model.iter_nth_child
col_id = self.model.COL_TIME
while True:
middle = (last_index - first_index) // 2 + first_index
if middle == first_index:
return last_index
ts = model_get (model_iter_nth_child (None, middle), col_id)
if ts < target_ts:
first_index = middle + 1
elif ts > target_ts:
last_index = middle - 1
else:
return middle
def run_for (self, n):
if n == 0:
raise ValueError ("illegal value for n")
self.n_partitions = n
def process (self):
model = self.model
result = []
partitions = []
first_ts = None
for row in self.model:
first_ts = row[model.COL_TIME]
if first_ts is not None:
break
if first_ts is None:
return
last_ts = None
for row in iter_model_reversed (self.model):
last_ts = row[model.COL_TIME]
# FIXME: We ignore 0 here (unparsable lines!), this should be
# handled differently!
if last_ts:
last_index = row.path[0]
break
if last_ts is None:
return
step = int (float (last_ts - first_ts) / float (self.n_partitions))
YIELD_LIMIT = 100
limit = YIELD_LIMIT
first_index = 0
target_ts = first_ts + step
old_found = 0
while target_ts < last_ts:
limit -= 1
if limit == 0:
limit = YIELD_LIMIT
yield True
found = self._search_ts (target_ts, first_index, last_index)
result.append (found - old_found)
partitions.append (found)
old_found = found
first_index = found
target_ts += step
self.step = step
self.data = result
self.partitions = partitions
self.ts_range = (first_ts, last_ts,)
class LevelDistributionSentinel (object):
def __init__ (self, freq_sentinel, model):
self.freq_sentinel = freq_sentinel
self.model = model
self.data = []
def clear (self):
del self.data[:]
def process (self):
YIELD_LIMIT = 10000
y = YIELD_LIMIT
model_get = self.model.get_value
model_next = self.model.iter_next
id_time = self.model.COL_TIME
id_level = self.model.COL_LEVEL
del self.data[:]
data = self.data
i = 0
partitions_i = 0
partitions = self.freq_sentinel.partitions
counts = [0] * 6
tree_iter = self.model.get_iter_first ()
while tree_iter:
y -= 1
if y == 0:
y = YIELD_LIMIT
yield True
level = model_get (tree_iter, id_level)
if i > partitions[partitions_i]:
data.append (tuple (counts))
counts = [0] * 6
partitions_i += 1
if partitions_i == len (partitions):
# FIXME?
break
i += 1
counts[level] += 1
tree_iter = model_next (tree_iter)
# FIXME: We lose the last partition here!
yield False
class UpdateProcess (object):
def __init__ (self, freq_sentinel, dist_sentinel):
self.freq_sentinel = freq_sentinel
self.dist_sentinel = dist_sentinel
self.is_running = False
self.dispatcher = Common.Data.GSourceDispatcher ()
def __process (self):
if self.freq_sentinel is None or self.dist_sentinel is None:
return
self.is_running = True
for x in self.freq_sentinel.process ():
yield True
self.handle_sentinel_finished (self.freq_sentinel)
for x in self.dist_sentinel.process ():
yield True
self.handle_sentinel_progress (self.dist_sentinel)
self.is_running = False
self.handle_sentinel_finished (self.dist_sentinel)
self.handle_process_finished ()
yield False
def run (self):
if self.is_running:
return
self.dispatcher (self.__process ())
def abort (self):
if not self.is_running:
return
self.dispatcher.cancel ()
self.is_running = False
def handle_sentinel_progress (self, sentinel):
pass
def handle_sentinel_finished (self, sentinel):
pass
def handle_process_finished (self):
pass
class TimelineWidget (gtk.DrawingArea):
__gtype_name__ = "GstDebugViewerTimelineWidget"
def __init__ (self):
gtk.DrawingArea.__init__ (self)
self.logger = logging.getLogger ("ui.timeline")
self.process = UpdateProcess (None, None)
self.connect ("expose-event", self.__handle_expose_event)
self.connect ("configure-event", self.__handle_configure_event)
self.connect ("size-request", self.__handle_size_request)
self.process.handle_sentinel_progress = self.handle_sentinel_progress
self.process.handle_sentinel_finished = self.handle_sentinel_finished
self.process.handle_process_finished = self.handle_process_finished
self.model = None
self.__offscreen = None
def handle_sentinel_progress (self, sentinel):
self.__redraw ()
def handle_sentinel_finished (self, sentinel):
if sentinel == self.process.freq_sentinel:
self.__redraw ()
def handle_process_finished (self):
self.__redraw ()
def __redraw (self):
if not self.props.visible:
return
x, y, w, h = self.get_allocation ()
self.__offscreen = gtk.gdk.Pixmap (self.window, w, h, -1)
self.__draw (self.__offscreen)
self.__update ()
def __update (self):
if not self.props.visible:
return
if self.__offscreen is None:
self.__redraw ()
gc = gtk.gdk.GC (self.window)
self.window.draw_drawable (gc, self.__offscreen, 0, 0, 0, 0, -1, -1)
def update (self, model):
self.model = model
width = self.get_allocation ()[2]
self.process.abort ()
if model:
self.process.freq_sentinel = LineFrequencySentinel (model)
self.process.dist_sentinel = LevelDistributionSentinel (self.process.freq_sentinel, model)
self.process.freq_sentinel.run_for (width)
self.process.run ()
def clear (self):
self.process.abort ()
self.process.freq_sentinel = None
self.process.dist_sentinel = None
self.__redraw ()
def update_position (self, start_ts, end_ts):
if not self.process.freq_sentinel:
return
if not self.process.freq_sentinel.data:
return
self.__update ()
first_ts, last_ts = self.process.freq_sentinel.ts_range
step = self.process.freq_sentinel.step
position1 = int (float (start_ts - first_ts) / step)
position2 = int (float (end_ts - first_ts) / step)
ctx = self.window.cairo_create ()
x, y, w, h = self.get_allocation ()
line_width = position2 - position1
if line_width <= 1:
ctx.set_source_rgb (1., 0., 0.)
ctx.set_line_width (1.)
ctx.move_to (position1 + .5, 0)
ctx.line_to (position1 + .5, h)
ctx.stroke ()
else:
ctx.set_source_rgba (1., 0., 0., .5)
ctx.rectangle (position1, 0, line_width, h)
ctx.fill ()
def find_indicative_time_step (self):
MINIMUM_PIXEL_STEP = 32
time_per_pixel = self.process.freq_sentinel.step
return 32 # FIXME use self.freq_sentinel.step and len (self.process.freq_sentinel.data)
def __draw (self, drawable):
ctx = drawable.cairo_create ()
x, y, w, h = self.get_allocation ()
# White background rectangle.
ctx.set_line_width (0.)
ctx.rectangle (0, 0, w, h)
ctx.set_source_rgb (1., 1., 1.)
ctx.fill ()
ctx.new_path ()
# Horizontal reference lines.
ctx.set_line_width (1.)
ctx.set_source_rgb (.95, .95, .95)
for i in range (h // 16):
y = i * 16 - .5
ctx.move_to (0, y)
ctx.line_to (w, y)
ctx.stroke ()
if self.process.freq_sentinel is None:
return
# Vertical reference lines.
pixel_step = self.find_indicative_time_step ()
ctx.set_source_rgb (.9, .9, .9)
for i in range (1, w // pixel_step + 1):
x = i * pixel_step - .5
ctx.move_to (x, 0)
ctx.line_to (x, h)
ctx.stroke ()
if not self.process.freq_sentinel.data:
self.logger.debug ("frequency sentinel has no data yet")
return
maximum = max (self.process.freq_sentinel.data)
ctx.set_source_rgb (0., 0., 0.)
self.__draw_graph (ctx, w, h, maximum, self.process.freq_sentinel.data)
if not self.process.dist_sentinel.data:
self.logger.debug ("level distribution sentinel has no data yet")
return
theme = GUI.LevelColorThemeTango ()
dist_data = self.process.dist_sentinel.data
def cumulative_level_counts (*levels):
for level_counts in dist_data:
yield sum ((level_counts[level] for level in levels))
level = Data.debug_level_info
levels_prev = (Data.debug_level_log, Data.debug_level_debug,)
ctx.set_source_rgb (*(theme.colors_float (level)[1]))
self.__draw_graph (ctx, w, h, maximum,
list (cumulative_level_counts (level, *levels_prev)))
level = Data.debug_level_debug
levels_prev = (Data.debug_level_log,)
ctx.set_source_rgb (*(theme.colors_float (level)[1]))
self.__draw_graph (ctx, w, h, maximum,
list (cumulative_level_counts (level, *levels_prev)))
level = Data.debug_level_log
ctx.set_source_rgb (*(theme.colors_float (level)[1]))
self.__draw_graph (ctx, w, h, maximum, [counts[level] for counts in dist_data])
# Draw error and warning triangle indicators:
for level in (Data.debug_level_warning, Data.debug_level_error,):
ctx.set_source_rgb (*(theme.colors_float (level)[1]))
for i, counts in enumerate (dist_data):
if counts[level] == 0:
continue
SIZE = 8
ctx.move_to (i - SIZE // 2, 0)
ctx.line_to (i + SIZE // 2, 0)
ctx.line_to (i, SIZE / 1.41)
ctx.close_path ()
ctx.fill ()
def __draw_graph (self, ctx, w, h, maximum, data):
if not data:
return
from operator import add
heights = [h * float (d) / maximum for d in data]
ctx.move_to (0, h)
for i in range (len (heights)):
ctx.line_to (i - .5, h - heights[i] + .5)
ctx.line_to (i, h)
ctx.close_path ()
ctx.fill ()
def __handle_expose_event (self, self_, event):
self.__redraw ()
return True
def __handle_configure_event (self, self_, event):
self.logger.debug ("widget size configured to %ix%i",
event.width, event.height)
if event.width < 16:
return False
self.update (self.model)
return False
def __handle_size_request (self, self_, req):
# FIXME:
req.height = 64
class TimelineFeature (FeatureBase):
state_section_name = "timeline"
def __init__ (self):
self.action_group = gtk.ActionGroup ("TimelineActions")
self.action_group.add_toggle_actions ([("show-timeline",
None, _("_Timeline"),)])
def handle_attach_window (self, window):
self.log_view = window.log_view
ui = window.ui_manager
ui.insert_action_group (self.action_group, 0)
self.merge_id = ui.new_merge_id ()
ui.add_ui (self.merge_id, "/menubar/ViewMenu/ViewMenuAdditions",
"ViewTimeline", "show-timeline",
gtk.UI_MANAGER_MENUITEM, False)
box = window.get_top_attach_point ()
self.timeline = TimelineWidget ()
self.timeline.add_events (gtk.gdk.ALL_EVENTS_MASK) # FIXME
self.timeline.connect ("button-press-event", self.handle_timeline_button_press_event)
self.timeline.connect ("motion-notify-event", self.handle_timeline_motion_notify_event)
box.pack_start (self.timeline, False, False, 0)
self.timeline.hide ()
window.widgets.log_view_scrolled_window.props.vadjustment.connect ("value-changed",
self.handle_log_view_adjustment_value_changed)
handler = self.handle_show_action_toggled
action = self.action_group.get_action ("show-timeline")
action.connect ("toggled", handler)
action.activate ()
def handle_detach_window (self, window):
window.ui_manager.remove_ui (self.merge_id)
self.merge_id = None
window.ui_manager.remove_action_group (self.action_group)
self.timeline.destroy ()
self.timeline = None
def handle_attach_log_file (self, window, log_file):
model = window.log_filter
self.timeline.update (model)
def handle_detach_log_file (self, window, log_file):
self.timeline.clear ()
def handle_log_view_adjustment_value_changed (self, adj):
# FIXME: If not visible, disconnect this handler!
if not self.timeline.props.visible:
return
model = self.log_view.props.model
start_path, end_path = self.log_view.get_visible_range ()
ts1 = model.get (model.get_iter (start_path),
model.COL_TIME)[0]
ts2 = model.get (model.get_iter (end_path),
model.COL_TIME)[0]
self.timeline.update_position (ts1, ts2)
def handle_show_action_toggled (self, action):
show = action.props.active
if show:
self.timeline.show ()
else:
self.timeline.hide ()
def handle_timeline_button_press_event (self, widget, event):
if event.button != 1:
return True
pos = int (event.x)
self.goto_time_position (pos)
return False
def handle_timeline_motion_notify_event (self, widget, event):
if not event.state & gtk.gdk.BUTTON1_MASK:
return True
pos = int (event.x)
self.goto_time_position (pos)
return False
def goto_time_position (self, pos):
if not self.timeline.process.freq_sentinel:
return True
data = self.timeline.process.freq_sentinel.data
if not data:
return True
if pos < 0:
pos = 0
elif pos >= len (data):
pos = len (data) - 1
count = sum (data[:pos + 1])
model = self.log_view.props.model
row = model[count]
self.log_view.scroll_to_cell ((count,), use_align = True, row_align = .5)
return False
class Plugin (PluginBase):
features = [TimelineFeature]