This tool lets you visualize the time it took, in ms, to:
- Build display lists ("Draw" phase)
- Process display lists ("Process" phase)
- Swap GL buffers ("Execute" phase)
To use this tool:
- adb shell setprop hwui.profile true
- adb shell dumpsys gfxinfo <process name>
- Copy the profile data and paste it in a spreadsheet
- Generate a graph (stacked graph) and enjoy
Change-Id: I7840c0ea0f153550425aa798e3ada2f357688cf5
This change allows layouts to be notified of changes to LayoutParameters that have occurred
between layout operations.
If an assignment is made to the fields of LayoutParams instances that are already in use,
cachced data may become inconsistent with the new values. For complex layouts, like
GridLayout, in which the layout parameters define the structure of the layout, caching
could have caused ArrayOutOfBoundsException to be raised without this change. This case is
rare in normal code as initialisation is typically performed once. Its nevertheless possible
and much more likely in environments like design tools where layout parametrs may be being
edited on the fly.
Prevent errors as follows (belt and braces):
1. Change javadoc to request that changes to the fields of LayoutParams be accompanied with
a call to View.setLayoutParams(). (This calls requestLayout() which was what the previous
javadoc advised.) Provide a (for now, private) hook for layouts with caches to receive notification
of such calls so they can invalidate any relevant internal state.
2. For GridLayout, we cannot clone layout parameters as traditional Java grids do without retaining
two complete copies because of the public getLayoutParameters() method on View. Retaining two
copies is wasteful on constrainted devices. Instead, we keep just one copy and compute a hashCode
for the critical fields of a GridLayout's layoutParams. The hashChode is checked it prior to all
layout operations; clearing the cache and logging a warning when changes are detected, so that
developers can fix their code to provide the call to setLayoutParams() as above.
Change-Id: I819ea65ec0ab82202e2f94fd5cd3ae2723c1a9a0
Inserts of directories can be done in bulk as long as they're inserted before
the files contained within. Extend MediaInserter to accommodate giving priority
treatment to directories.
Bulk deleting of entries can be further sped up (by a factor of ~3 in my tests)
by deleting entries in database order. Switch the file cache to use
LinkedHashMap instead of HashMap to allow iterating over the cache in database
order. Also use bindArgs to allow for better caching of sql statements.
Change-Id: Ieb9ffc4e866c6cd505bf795eb80ff5d03ffc56bd
On reflection, only key events need to be serialized.
This is part of a series of changes to improve input system pipelining.
Bug: 5963420
Change-Id: I028b4eac97497d012036cb60ffbac4cb22d3966c
Instead of sending finished signals immediately when appending to
a batch, record the chain of sequence numbers that were part of
the batch and then send finished signals all at once when done.
This change helps the dispatcher keep track of the true state
of the application and can improve ANR detection slightly.
This is part of a series of changes to improve input system pipelining.
Bug: 5963420
Change-Id: I463c2221e2aa8fdf1c3d670c18e39e59ab69b0db
- update also DEBUG mode for taking care about RTL
- one minor issue remaining: left alignment is not properly honored in RTL
Change-Id: I9a4c8413cb1189a032649472016994642418637b
Add support for modifying the playback rate of a MediaPlayer
by altering the sample rate of its AudioTrack.
The playback rate is expressed in permille, where 1000 is the
playback at normal speed.
Change-Id: I981d060ab32f7bae7a767e82c60c88ae635dceed
