Commit Graph

479 Commits

Author SHA1 Message Date
Jeff Brown
80f3e7cc15 Fade out the mouse pointer after inactivity or other events.
Fades out the mouse pointer:
- after 15 seconds of inactivity normally
- after 3 seconds of inactivity in lights out mode
- after a non-modifier key down
- after a touch down

Extended the native Looper to support enqueuing time delayed
messages.  This is used by the PointerController to control
pointer fade timing.

Change-Id: I87792fea7dbe2d9376c78cf354fe3189a484d9da
2011-03-02 15:37:57 -08:00
Jeff Brown
25943a83f2 Add new hover move action and scroll wheel plumbing.
Added support for tracking the mouse position even when the mouse button
is not pressed.  To avoid confusing existing applications, mouse movements
are reported using the new ACTION_HOVER_MOVE action when the mouse button
is not pressed.

Added some more plumbing for the scroll wheel axes.  The values are
reported to Views but they are not yet handled by the framework.

Change-Id: I1706be850d25cf34e5adf880bbed5cc3265cf4b1
2011-02-19 06:14:21 -08:00
Jeff Brown
3ea4de826d Add new axes for joysticks and mouse wheels.
Added API on InputDevice to query the set of axes available.
Added API on KeyEvent and MotionEvent to convert keycodes and axes
to symbolic name strings for diagnostic purposes.
Added API on KeyEvent to query if a given key code is a gamepad button.
Added a new "axis" element to key layout files to specify the
mapping between raw absolute axis values and motion axis ids.
Expanded the axis bitfield to 64bits to allow for future growth.
Modified the Makefile for keyboard prebuilts to run the keymap
validation tool during the build.
Added layouts for two game controllers.
Added default actions for game pad button keys.
Added more tests.
Fixed a bunch of bugs.

Change-Id: I73f9166c3b3c5bcf4970845b58088ad467525525
2011-02-19 05:23:10 -08:00
Jeff Brown
b2d4435dfa Fix a regression with MotionEvent parceling.
Also added some more unit tests.

Change-Id: I413654294d1a998eec056884e6df5eaa50f3daf4
2011-02-17 13:01:34 -08:00
Jeff Brown
3e3414636c Add support for arbitrary axes in MotionEvents.
This change makes it possible to extend the set of axes that
are reported in MotionEvents by defining new axis constants.

The MotionEvent object is now backed by its C++ counterpart
to avoid having to maintain multiple representations of the
same data.

Change-Id: Ibe93c90d4b390d43c176cce48d558d20869ee608
2011-02-15 19:14:37 -08:00
Mathias Agopian
d5ea3db6a3 Use EGL_NATIVE_VISUAL_ID to select EGLConfig
EGLUtils::selectConfigForPixelFormat() now uses EGL_NATIVE_VISUAL_ID
to select a config with the proper format. this is more robust and
future proof.

Change-Id: I7245d904adab1e339f062b9b498ddd9324cfe7a4
2011-01-19 18:21:15 -08:00
Mathias Agopian
48b888aab9 improve SurfaceFlinger 'dumpsys' log
list the purgatory, which shows windows that have been closed,
but for which the client still has references.

Change-Id: I5168bb88cb328d5d77d71d0871deb9190f493126
2011-01-19 16:15:53 -08:00
Jeff Brown
9346643577 Make getFallbackAction return false when there is none.
Change-Id: Id17c0f7269e4a228f4e5f11c54614fec508222a2
2011-01-14 17:54:38 -08:00
Jeff Brown
4125036157 Mouse pointer integration.
Added support for loading the pointer icon from a resource.

Moved the system server related bits of the input manager out
of libui and into libinput since they do not need to be linked into
applications.

Change-Id: Iec11e0725b3add2b905c51f8ea2c3b4b0d1a2d67
2011-01-04 17:31:24 -08:00
Jeff Brown
4c501a4217 Add initial support for cursor-based pointing devices.
Some parts stubbed out but you can plug in a mouse and move
a green cursor around to interact with the UI.

Change-Id: I80d597a7f11d3bd92041890f74b3c77326975e6e
2010-12-29 13:19:53 -08:00
Jeff Brown
7999039b77 Fix race condition in fallback key processing.
Need to ensure that the channel is still valid before proceeding.

Bug: 3271482
Change-Id: Ia6863cbedd9b53cbc5c9c8815e9ea90bef3d2218
2010-12-09 18:14:23 -08:00
Mathias Agopian
0a757814f3 fix [3259708] Graphic Buffer Mapper does not support YV12
remove a bunch of a code that was there only to support broken gralloc implementations

Change-Id: I3c1a9172224cbcc283601abfbbd695a20815451f
2010-12-08 16:48:28 -08:00
Mathias Agopian
a5529c8778 remove support for PUSH_BUFFER surfaces and overlays
the same functionality is now supported through
the h/w composer HAL, and YUV support in the GPU.

Change-Id: I8146605449954b8e8fd7f78810b7d873c2d8f5bf
2010-12-08 16:13:59 -08:00
Erik Gilling
1d21a9cafc surfaceflinger: add support for gralloc dump hooks
Change-Id: Ib6f539ed0132b70d040d653c03d52cc04249ac3c
2010-12-08 15:40:11 -08:00
Jeff Brown
02d85b5021 Add support for fallback keycodes.
This change enables the framework to synthesize key events to implement
default behavior when an application does not handle a key.
For example, this change enables numeric keypad keys to perform
their associated special function when numlock is off.

The application is informed that it is processing a fallback keypress
so it can choose to ignore it.

Added a new keycode for switching applications.

Added ALT key deadkeys.

New default key mappings:
- ESC -> BACK
- Meta+ESC -> HOME
- Alt+ESC -> MENU
- Meta+Space -> SEARCH
- Meta+Tab -> APP_SWITCH

Fixed some comments.
Fixed some tests.

Change-Id: Id7f3b6645f3a350275e624547822f72652f3defe
2010-12-07 17:35:26 -08:00
Mathias Agopian
b5a00fcb71 am 48f42f8c: am 4153bf3a: Merge "[3171580] don\'t automatically log GraphicBuffer allocation failures" into gingerbread
* commit '48f42f8c3fbd33b2f46c6290ff5963dd58938cf9':
  [3171580] don't automatically log GraphicBuffer allocation failures
2010-12-07 17:24:03 -08:00
Mathias Agopian
372c56e98b am 4153bf3a: Merge "[3171580] don\'t automatically log GraphicBuffer allocation failures" into gingerbread
* commit '4153bf3a259624a2f2dc497b77b225a1fb517abc':
  [3171580] don't automatically log GraphicBuffer allocation failures
2010-12-07 14:20:09 -08:00
Mathias Agopian
678bdd6349 [3171580] don't automatically log GraphicBuffer allocation failures
some of these failures are not fatal and even expected in some cases
so they should not emit a dump in the log in those cases.

Change-Id: Idcfa252e3bfa9d74e27fe4ad8f8623aa01aa9c5e
2010-12-03 17:33:09 -08:00
Jeff Brown
db360642ed Improve support for external keyboards.
Use Vendor ID, Product ID and optionally the Version to
locate keymaps and configuration files for external devices.

Moved virtual key definition parsing to native code so that
EventHub can identify touch screens with virtual keys and load
the appropriate key layout file.

Cleaned up a lot of old code in EventHub.

Fixed a regression in ViewRoot's fallback event handling.

Fixed a minor bug in FileMap that caused it to try to munmap
or close invalid handled when released if the attempt to map
the file failed.

Added a couple of new String8 conveniences for formatting strings.

Modified Tokenizer to fall back to open+read when mmap fails since
we can't mmap sysfs files as needed to open the virtual key
definition files in /sys/board_properties/.

Change-Id: I6ca5e5f9547619fd082ddac47e87ce185da69ee6
2010-12-02 16:01:32 -08:00
Jeff Brown
53c16642e2 Ensure the ShortcutManager uses the correct key character map.
The ShortcutManager used to only receive the key code of the key event
that triggered the shortcut.  This change now provides the shortcut
manager with the whole key event so it can look up the associated
character using the correct key character map.

To make this more efficient, added a mechanism for recycling
key events.  At the moment it is only used by key events owned by the
system process, since clients of the existing API (such as Views)
might continue to hold on to key events after dispatch has finished so
they would break if the key event were recycled by the framework.

Deprecated KeyCharacterMap.BUILT_IN_KEYBOARD.

Change-Id: I4313725dd63f2be01c350c005a41c7fde9bc67e8
2010-11-30 18:50:17 -08:00
Jeff Brown
6688837ff6 Support non-orientation aware keyboards and other devices.
Fixed a bug with dpad keys on external keyboards being rotated
according to the display orientation by adding a new input device
configuration property called "keyboard.orientationAware".

Added a mechanism for overriding the key layout and key character
map in the input device configuration file using the new
"keyboard.layout" and "keyboard.characterMap" properties.

Also added "trackball.orientationAware", "touch.orientationAware" and
"touch.deviceType" configuration properties.

Rewrote the configuration property reading code in native code
so that it can be used by EventHub and other components.

Added basic support for installable idc, kl, and kcm files
in /data/system/devices.  However, there is no provision for
copying files there yet.

Disabled long-press character pickers on full keyboards so that
key repeating works as expected.

Change-Id: I1bd9f0c3d344421db444e7d271eb09bc8bab4791
2010-11-30 17:15:49 -08:00
Jeff Brown
44a2a171e1 Merge "Port Emulator keymaps." 2010-11-23 15:51:27 -08:00
Jeff Brown
d5fdf7d74b Port Emulator keymaps.
Also added a validation tool for keymaps (not currently integrated
into the build system but getting there).

This change brings back Android.mk with the intent that it will
be used to validate keymaps in a later change.

Added some missing keys that are present on phones.

Bug: 3215210
Bug: 3225421
Change-Id: Id817c6e2215164616942c51a42752915d9ceacd3
2010-11-23 15:26:48 -08:00
Jean-Baptiste Queru
ffb0795daf am 9df7f313: am f0f6c54b: Merge "frameworks/base: Destroy the overlay even if there is an error"
* commit '9df7f31359866a77a47c9fab3171c71715fd0056':
  frameworks/base: Destroy the overlay even if there is an error
2010-11-23 11:17:48 -08:00
Jean-Baptiste Queru
ec756056ab am f0f6c54b: Merge "frameworks/base: Destroy the overlay even if there is an error"
* commit 'f0f6c54b13831b11bd7a3bd7a01dc49b7505e56e':
  frameworks/base: Destroy the overlay even if there is an error
2010-11-23 11:14:57 -08:00
Naomi Luis
29a73ba845 frameworks/base: Destroy the overlay even if there is an error
Allow the overlay object to be destroyed whenever the destroy is
invoked. Currently the destroy call returns if there is an error
encountered, which results in open data and control channels.

Change-Id: I1f2ef4ebb5fb1dcabf05ab50b5bbf6e5e240a63a
2010-11-22 14:03:18 -08:00
Jeff Brown
46aabb3f51 am b27b8c0c: Fix a key repeating bug. (DO NOT MERGE)
* commit 'b27b8c0caf8ff23d10eea655085769f314050427':
  Fix a key repeating bug. (DO NOT MERGE)
2010-11-18 12:36:59 -08:00
Jeff Brown
0b7b1960e7 am bfc1cc2d: Fix stuck keys when released out of order. (DO NOT MERGE)
* commit 'bfc1cc2d1ea85cc754e63b422eb8cef8ae6a3667':
  Fix stuck keys when released out of order. (DO NOT MERGE)
2010-11-18 12:36:50 -08:00
Jeff Brown
a3477c862a Added support for full PC-style keyboards.
BREAKING CHANGE: Redesigned the key character map format to
accomodate full keyboards with more comprehensive suite of modifiers.
Old key character maps will not work anymore and must be updated.
The new format is plain text only and it not compiled to a binary
file (so the "kcm" tool will be removed in a subsequent check-in).

Added FULL keyboard type to support full PC-style keyboards.

Added SPECIAL_FUNCTION keyboard type to support special function
keypads that do not have any printable keys suitable for typing
and only have keys like HOME and POWER

Added a special VIRTUAL_KEYBOARD device id convention that maps
to a virtual keyboard with a fixed known layout.  This is designed
to work around issues injecting input events on devices whose
built-in keyboard does not have a useful key character map (ie.
when the built-in keyboard is a special function keyboard only.)

Modified several places where events were being synthesized
to use the virtual keyboard.

Removed support for the "qwerty" default layout.
The new default layout is "Generic".  For the most part "qwerty"
was being used as a backstop in case the built-in keyboard did
not have a key character map (probably because it was a special
function keypad) and the framework needed to be able to inject
key events anyways.  The latter issue is resolved by using the
special VIRTUAL_KEYBOARD device instead of BUILT_IN_KEYBOARD.

Added the concept of a key modifier behavior so that
MetaKeyKeyListener can distinguish between keyboards that use
chorded vs. toggled modifiers.

Wrote more robust key layout and key character map parsers
to enable support for new keyboard features and user installable
key maps.

Fixed a bug in InputReader generating key ups when keys
are released out of sequence.

Updated tons of documentation.

Currently QwertyKeyListener is being used for full keyboards
with autotext and capitalization disabled.  This mostly works
but causes some problems with character pickers, etc.
These issues will be resolved in subsequent changes.

Change-Id: Ica48f6097a551141c215bc0d2c6f7b3fb634d354
2010-11-18 09:49:03 -08:00
Jeff Brown
9cf416cbcf Fix a key repeating bug. (DO NOT MERGE)
This change fixes a bug in the dispatcher where the window manager
policy would incorrectly receive a key repeat count of 0 in the case
where the key repeat was generated by the hardware or driver.
Long-press on HOME was broken as a result.

Repeating keys could also get stuck down.

Bug: 3159581
Bug: 3208156
Change-Id: I1145487cfcc41a7850dba4cafc63c4a5951ace5b
2010-11-17 19:42:04 -08:00
Jeff Brown
9bb3ef2e78 Fix stuck keys when released out of order. (DO NOT MERGE)
Bug: 3208156
Change-Id: I14e4d54f4912de5e2fabcd8638120623aa2d16e0
2010-11-17 19:17:54 -08:00
Jean-Baptiste Queru
3f02b88af6 am 5e069074: am a15e4886: Merge "Framebuffer: Support variable number of framebuffers in the UI"
* commit '5e0690745a45f99d12d940dd4aaae814b00a429e':
  Framebuffer: Support variable number of framebuffers in the UI
2010-11-17 17:36:11 -08:00
Jean-Baptiste Queru
af10976583 am a15e4886: Merge "Framebuffer: Support variable number of framebuffers in the UI"
* commit 'a15e4886de8f75f3cb137f51743d330414c910e8':
  Framebuffer: Support variable number of framebuffers in the UI
2010-11-17 17:29:48 -08:00
Jeff Brown
e33a9ecc25 Enable touch splitting for all windows by default.
New default only applies to applications with targetSdkVersion >=
HONEYCOMB.  Old applications default to no touch splitting for
their windows.

In addition, enabled split touch for various system windows.

Bug: 3049580
Change-Id: Idc8da9baa2cd8e1e4e76af8967d7b6a5ccb94427
2010-11-12 14:53:43 -08:00
Mathias Agopian
a2b1b7f71d Merge "fix [3148312] Region can access data out of bounds" into gingerbread 2010-11-08 13:40:40 -08:00
Joe Onorato
d94206c41d The CHEEK_TOUCH stuff never worked. Remove it.
Bug: 3104906
Change-Id: Ia37236ba1775fc3ec8c111e2e0b85b105e0dea6a
2010-11-08 13:02:58 -08:00
Jeff Brown
8149991234 Tell system server whether the app handled input events.
Refactored ViewRoot, NativeActivity and related classes to tell the
dispatcher whether an input event was actually handled by the application.

This will be used to move more of the global default key processing
into the system server instead of the application.

Change-Id: If06b98b6f45c543e5ac5b1eae2b3baf9371fba28
2010-11-08 12:49:43 -08:00
Jeff Brown
d4ecee9313 Rename the locked meta key constants for clarity.
Also added some tests for LED setting.

Change-Id: I3fd86322afd07ae8de52d1ccbc2fae2c6d586641
2010-11-05 13:27:35 -07:00
Rodrigo Obregon
71484f2f76 Framebuffer: Support variable number of framebuffers in the UI
This change defines a macro NUM_FRAME_BUFFERS to set
the desired number of framebuffers to be used by the UI,
instead of hard-coding 2 framebuffers.

Aditional logic has been  added to handle the initialization
and destruction of NUM_FRAME_BUFFERS buffers.

Change-Id: I3a4bfec3e0f453432f2ffebf084c00f574d3be46
Signed-off-by: Rodrigo Obregon <robregon@ti.com>
2010-11-03 15:16:18 -05:00
Jeff Brown
92988aab48 Fix a key repeating bug.
This change fixes a bug in the dispatcher where the window manager
policy would incorrectly receive a key repeat count of 0 in the case
where the key repeat was generated by the hardware or driver.
Long-press on HOME was broken as a result.

Bug: 3159581
Change-Id: If0f02662313f5b879a4e566fbb461389e274a550
2010-11-02 17:58:22 -07:00
Jeff Brown
b0bb949f09 Merge "Add plumbing for volume mute key." 2010-11-02 17:38:18 -07:00
Jeff Brown
7e5660f3e2 Add plumbing for volume mute key.
Full support for the volume mute key will be implemented in a
later change.

Bug: 2912307
Change-Id: I98c27d6360f159c8b7447e04b45f442eff87b38a
2010-11-02 17:31:39 -07:00
Romain Guy
e113710ebd Merge "Optimize FBO drawing with regions. This optimization is currently disabled until Launcher is modified to take advantage of it. The optimization can be enabled by turning on RENDER_LAYERS_AS_REGIONS in the OpenGLRenderer.h file." 2010-11-02 16:23:22 -07:00
Romain Guy
b801624dc4 Optimize FBO drawing with regions.
This optimization is currently disabled until Launcher is
modified to take advantage of it. The optimization can be
enabled by turning on RENDER_LAYERS_AS_REGIONS in the
OpenGLRenderer.h file.

Change-Id: I2fdf59d0f4dc690a3d7f712173ab8db3848b27b1
2010-11-02 16:17:23 -07:00
Jeff Brown
2d283a68e4 am 7ab5d2d9: am a87ea46c: Fix bugs related to cheek event suppression.
* commit '7ab5d2d951792c9b1a1e7cfb279280c2d076506f':
  Fix bugs related to cheek event suppression.
2010-11-02 02:34:15 -07:00
Jeff Brown
f6149c3229 Fix bugs related to cheek event suppression.
Two issues:

1. First, due to an inverted conditional in the input dispatcher, we were
   reporting touches as long touches and vice-versa to the power manager.

2. Power manager user activity cheek event suppression also suppresses touch
   events (but not long touch or up events).  As a result, if cheek event
   suppression was enabled, touches would not poke the user activity timer.
   However due to the above logic inversion, this actually affected long
   touches.  Net result, if cheek suppression was enabled in the power manager
   and you held your thumb on the screen long enough, the phone would
   go to sleep!

Cheek event suppression is commonly turned on when making a phone call.
Interestingly, it does not seem to get turned off afterward...

This change fixes the logic inversion and exempts touches from the cheek
suppression.  The reason we do the latter is because the old behavior
was actually harmful in other ways too: a touch down would be suppressed
but not a long touch or the touch up.  This would cause bizarre behavior
if you touched the screen while it was dimmed.  Instead of brightening
immediately, it would brighten either when you lifted your finger or
300ms later, whichever came first.

Bug: 3154895
Change-Id: Ied9ccec6718fbe86506322ff47a4e3eb58f81834
2010-11-01 20:51:58 -07:00
Jeff Brown
fd749c63b0 Fix policy issues when screen is off.
Rewrote interceptKeyBeforeQueueing to make the handling more systematic.
Behavior should be identical except:
- We never pass keys to applications when the screen is off and the keyguard
  is not showing (the proximity sensor turned off the screen).
  Previously we passed all non-wake keys through in this case which
  caused a bug on Crespo where the screen would come back on if a soft key
  was held at the time of power off because the resulting key up event
  would sneak in just before the keyguard was shown.  It would then be
  passed through to the dispatcher which would poke user activity and
  wake up the screen.
- We propagate the key flags when broadcasting media keys which
  ensures that recipients can tell when the key is canceled.
- We ignore endcall or power if canceled (shouldn't happen anyways).

Changed the input dispatcher to not poke user activity for canceled
events since they are synthetic and should not wake the device.

Changed the lock screen so that it does not poke the wake lock when the
grab handle is released.  This fixes a bug where the screen would come
back on immediately if the power went off while the user was holding
one of the grab handles because the sliding tab would receive an up
event after screen turned off and release the grab handles.

Fixed a couple of issues where media keys were being handled inconsistently
or not at all, particularly in the case of the new PAUSE, PLAY
and RECORD keys.

Bug: 3144874
Change-Id: Ie630f5fb6f128cfdf94845f9428067045f42892c
2010-11-01 15:00:25 -07:00
Mathias Agopian
0cc0399b6b fix [3148312] Region can access data out of bounds
Change-Id: Ic46f31d40943f405e37da21a50b55edd5a2c4124
2010-10-29 15:14:08 -07:00
Jeff Brown
4c766ccea5 resolved conflicts for merge of df3cccf3 to master
Change-Id: I425496a9fc4e9cbc50ad6938e9dccb14827d9558
2010-10-27 22:18:43 -07:00
Jeff Brown
fef5b04203 Drop all dispatcher state when dispatcher is disabled.
This patch makes the dispatcher drop all of its state when it is
disabled (when the screen turns off).  This ensures that the dispatcher
does not get stuck thinking a pointer is still down if the screen
turned off while the user was touching the display (such as a fat touch
while hitting the power button).

Bug: 3098344
Change-Id: If50ef5804870aa1acd3179fd4b40e3cda58dd39d
2010-10-27 18:43:51 -07:00
Jeff Brown
53f291e55f Tweak log messages a bit.
Change-Id: Ifadf78c1ab8db49106216c70086f98860795c65f
2010-10-25 17:37:46 -07:00
Jeff Brown
5e871b47ef Add test stubs for newly added methods.
Change-Id: I44139adebbbed1358f613fbcbfcddac6617ef5bd
2010-10-24 15:25:53 -07:00
Jeff Brown
bc9f053156 am 2ef36763: am 860c2df4: Merge "Add unit tests for native input and fix bugs identified." into gingerbread
Merge commit '2ef36763700eff5679d6012e7f078c57f1a4c465'

* commit '2ef36763700eff5679d6012e7f078c57f1a4c465':
  Add unit tests for native input and fix bugs identified.
2010-10-24 14:36:23 -07:00
Jeff Brown
3c3cc62e24 Add unit tests for native input and fix bugs identified.
Fixed a bug where we would lose the first touch point when swiping out of
the virtual key area.

Fixed a bug where we would not send an ACTION_MOVE event in cases where
individual pointers went down/up and the remaining pointers actually moved.
This is important since many applications do not handle pointer movements
during ACTION_POINTER_DOWN or ACTION_POINTER_UP.  In the case of
ACTION_POINTER_UP the movement was completely lost since all pointers were
dispatched using their old location rather than the new location.

Improved motion event validation to check for duplicate pointer ids.

Added an input source constant that was missing from the NDK api but
defined in the framework api.

Added a timestamp when reporting added/removed devices in EventHub.

Bug: 3070082
Change-Id: I3206a030f43b7616e2f48006e5a9d522c4d92e56
2010-10-23 03:52:57 -07:00
Kenny Root
a209aa866e am d7cd560a: am 1d79a9d9: Use correct size of GAMEPAD_KEYCODES
Merge commit 'd7cd560af506f75d07034c136bea09b409b4d408'

* commit 'd7cd560af506f75d07034c136bea09b409b4d408':
  Use correct size of GAMEPAD_KEYCODES
2010-10-21 17:21:56 -07:00
Kenny Root
bc9c82fb79 Use correct size of GAMEPAD_KEYCODES
Compute the actual number of indices in the GAMEPAD_KEYCODES instead of
the pure size in bytes.

Bug: 3121536
Change-Id: I71edbd8bf6eff2c8cc0ea5c6845362b3d1e06466
2010-10-21 15:46:03 -07:00
Jeff Brown
2659f40403 am f2c40603: am 7689dd49: Merge "Fix bug where home presses were not poking user activity." into gingerbread
Merge commit 'f2c406030874b355ca9e4e67cc0e3aff6103c23e'

* commit 'f2c406030874b355ca9e4e67cc0e3aff6103c23e':
  Fix bug where home presses were not poking user activity.
2010-10-19 09:55:39 -07:00
Jeff Brown
60b5776c87 Add support for calibrating touch position.
Useful for tweaking touch screen alignment without having to modify the
kernel device driver x/y axis bounds.

Change-Id: I6ca43d3c138548f9dfb76aa33150a0c853698fb6
2010-10-18 17:24:49 -07:00
Jeff Brown
ef3a823482 Fix bug where home presses were not poking user activity.
We now poke user activity twice: once upon dequeueing an event
for dispatch and then again just before we dispatch it.  The second
poke is to compensate for the fact that it can take a few seconds to
identify the dispatch target (if the application is responding slowly)
but we want to keep the display from going to sleep for X amount of time
after the app gets a chance to actually receive the event.  This mirrors
pre-Gingerbread behavior.

Removed some unnecessary code that filters user activity pokes when sending
events to KeyGuard.  We don't need this because KeyGuard already tells the
power manager to disable user activity.

Bug: 3101397
Change-Id: I8c3a77601fdef8f584e84cfdd11aa79da0ff51db
2010-10-18 14:50:13 -07:00
Jeff Brown
ace3dc4f7c am 9e0e0543: am 36e65ffd: Merge "Fix a native crash in input dispatcher when windows are removed." into gingerbread
Merge commit '9e0e054388689fd618c84a283c28ee484477b44d'

* commit '9e0e054388689fd618c84a283c28ee484477b44d':
  Fix a native crash in input dispatcher when windows are removed.
2010-10-18 10:31:43 -07:00
Jeff Brown
7d8733fc7a am 5f0cbfce: am c1e7b218: Merge "Improve input device calibration format." into gingerbread
Merge commit '5f0cbfcecc4db20f897507c826296b3aac70c592'

* commit '5f0cbfcecc4db20f897507c826296b3aac70c592':
  Improve input device calibration format.
2010-10-16 09:13:13 -07:00
Jeff Brown
e68d9e0be4 Add support for secure system overlays.
Manual merge from Gingerbread.

This change adds a new window type for secure system overlays
created by the system itself from non-secure system overlays that
might be created by applications that have the system alert permission.
Secure views ignore the presence of secure system overlays.

Bug: 3098519
Change-Id: Id876736fd8bf332ff9a5428bde59f5268aa49c3a
2010-10-15 17:10:55 -07:00
Jeff Brown
b13d7b5cf0 Fix a native crash in input dispatcher when windows are removed.
Bug: 3101826
Change-Id: I040838600a6105c8d9f3235025dc0a7b5b27da2e
2010-10-15 16:20:51 -07:00
Jeff Brown
d9dd44d867 Add support for secure system overlays. (DO NOT MERGE)
This change adds a new window type for secure system overlays
created by the system itself from non-secure system overlays that
might be created by applications that have the system alert permission.
Secure views ignore the presence of secure system overlays.

Bug: 3098519
Change-Id: I8f8398f4fdeb0469e5d71124c21bedf121bd8c07
2010-10-15 16:03:35 -07:00
Jeff Brown
6a817e22e4 Add keycodes and meta-key modifiers to support external keyboards.
Added new key maps for external keyboards.  These maps are intended to
be shared across devices by inheriting the "keyboards.mk" product
makefile as part of the device's product definition.

One of the trickier changes here was to unwind some code in
MetaKeyKeyListener that assumed that only the low 8 bits of the meta key
state were actually used.  The new code abandons bitshifts in favor
of simple conditionals that are probably easier to read anyways.
The special meta key state constants used by MetaKeyKeyListener
are now (@hide) defined in KeyEvent now so as to make it clearer that they
share the same code space even if those codes are not valid for KeyEvents.

The EventHub now takes care of detecting the appropriate key layout
map and key character map when the device is added and sets system
properties accordingly.  This avoids having duplicate code in
KeyCharacterMap to probe for the appropriate key character map
although the current probing mechanism has been preserved for legacy
reasons just in case.

Added support for tracking caps lock, num lock and scroll lock and
turning their corresponding LEDs on and off as needed.

The key character map format will need to be updated to correctly support
PC style external keyboard semantics related to modifier keys.
That will come in a later change so caps lock doesn't actually do
anything right now except turn the shiny LEDs on and off...

Added a list of symbolic key names to KeyEvent and improved the toString()
output for debug diagnosis.  Having this list in a central place in the
framework also allows us to remove it from Monkey so there is one less
thing to maintain when we add new keycodes.

Bug: 2912307
Change-Id: If8c25e8d50a7c29bbf5d663c94284f5f86de5da4
2010-10-15 16:00:07 -07:00
Jeff Brown
28699cce02 am 567db077: am 2d441e14: Merge "Make sure EventHub reports added/removed devices immediately." into gingerbread
Merge commit '567db07702f851f2e7fb1fb0021ce2871469183e'

* commit '567db07702f851f2e7fb1fb0021ce2871469183e':
  Make sure EventHub reports added/removed devices immediately.
2010-10-15 14:26:18 -07:00
Jeff Brown
6b337e74f0 Improve input device calibration format.
Added support for calibrating touch size for devices that report
size as an area measurement rather than as a width.
Fixed some bugs.

Bug: 3096045
Change-Id: I30a12e73752883516ed054f8af407204bca45814
2010-10-14 21:44:16 -07:00
Jeff Brown
7e40f36237 Make sure EventHub reports added/removed devices immediately.
Fixed a bug where EventHub would not report changes in devices
until the next event.

Bug: 3096147
Change-Id: Ie4c3e1d14d0ad806cfaa212611ce06034d1b94d4
2010-10-14 02:23:43 -07:00
Jeff Brown
29ba9b8d3e am 4b255a23: am 03aa28fb: Merge "Improve the input policy handling a bit." into gingerbread
Merge commit '4b255a23041225103a6870e77a236f78c2816eda'

* commit '4b255a23041225103a6870e77a236f78c2816eda':
  Improve the input policy handling a bit.
2010-10-13 17:02:48 -07:00
Jeff Brown
5d0d23dba9 am b05632aa: am a28d5aff: Merge "Fix a bug synthesizing cancelation events for motions." into gingerbread
Merge commit 'b05632aae37ea3a3573aabf10e6868733546de96'

* commit 'b05632aae37ea3a3573aabf10e6868733546de96':
  Fix a bug synthesizing cancelation events for motions.
2010-10-13 17:01:53 -07:00
Jeff Brown
a8ed856a8a Improve the input policy handling a bit.
Fixed some issues with Monkeys turning off their own screens.  Ook ook!
Added some more comments to explain what's going on.

Change-Id: Id2bc0466161a642a73ef7ef97725d1c81e984b12
2010-10-12 00:16:14 -07:00
Jeff Brown
b6702e5972 Track input state when transferring touch focus.
Copies the input state to the destination window and sends synthesic
cancelation events to the source window.

Change-Id: Ia75820b0d756ed5d6cd22dce7830251ac85141ed
2010-10-11 18:32:20 -07:00
Jeff Brown
316237d554 Fix a bug synthesizing cancelation events for motions.
Change-Id: I881c0fa16c1d22c4b1b6cca24deb0105405ff5b0
2010-10-11 18:22:53 -07:00
Jeff Brown
33d54ce97d Fix an event injection bug when the policy is bypassed.
Added the concept of a "trusted" event to distinguish between events from
attached input devices or trusted injectors vs. other applications.
This change enables us to move certain policy decisions out of the
dispatcher and into the policy itself where they can be handled more
systematically.

Cherry pick of b931a1b4 from gingerbread into master.

Change-Id: I700a5f07b8b227878cea9437a289a45a245c0424
2010-10-11 17:54:12 -07:00
Jeff Brown
d129348647 am 41aabeb5: am 1e6a3a53: Merge "Added more robust tracking and cancelation of events." into gingerbread
Merge commit '41aabeb51305d19747687f246080f44fc2a74435'

* commit '41aabeb51305d19747687f246080f44fc2a74435':
  Added more robust tracking and cancelation of events.
2010-10-11 17:42:30 -07:00
Jeff Brown
1fe6dec097 Fix an event injection bug when the policy is bypassed.
Added the concept of a "trusted" event to distinguish between events from
attached input devices or trusted injectors vs. other applications.
This change enables us to move certain policy decisions out of the
dispatcher and into the policy itself where they can be handled more
systematically.

Change-Id: I4d56fdcdd31aaa675d452088af39a70c4e039970
2010-10-11 16:26:13 -07:00
Jeff Brown
90f0cee685 Added more robust tracking and cancelation of events.
This change fixes several issues where events would be dropped in the
input dispatch pipeline in such a way that the dispatcher could not
accurately track the state of the input device.

Given more robust tracking, we can now also provide robust cancelation
of input events in cases where an application might otherwise become
out of sync with the event stream due to ANR, app switch, policy decisions,
or forced focus transitions.

Pruned some of the input dispatcher log output.

Moved the responsibility for calling intercept*BeforeQueueing into
the input dispatcher instead of the input reader and added support for
early interception of injected events for events coming from trusted
sources.  This enables behaviors like injection of media keys while
the screen is off, haptic feedback of injected virtual keys, so injected
events become more "first class" in a way.

Change-Id: Iec6ff1dd21e5f3c7feb80ea4feb5382bd090dbd9
2010-10-10 14:45:51 -07:00
Jamie Gennis
fe2987d865 Merge "Move binder magic from the Surface class to GraphicBuffer." 2010-10-10 13:36:13 -07:00
Jamie Gennis
309d3bb2f9 Move binder magic from the Surface class to GraphicBuffer.
- Register buffers with Gralloc when unflattening a GraphicBuffer (rather than
doing it in the Surface class).
- Add support for a GraphicBuffer that wraps an android_native_window_t*.

Change-Id: I029ac086111bbac800e5ca37eb505f558b718cd8
2010-10-10 13:09:46 -07:00
Jeff Brown
26c336a468 am f10929fb: am a1bf0a06: Merge "Minor fix for InputReader support for non-touchscreen devices." into gingerbread
Merge commit 'f10929fb350395c21edd2cba7641479afe75e750'

* commit 'f10929fb350395c21edd2cba7641479afe75e750':
  Minor fix for InputReader support for non-touchscreen devices.
2010-10-10 12:53:39 -07:00
Jeff Brown
77e26fce8e Minor fix for InputReader support for non-touchscreen devices.
Change-Id: I2256e37dd1c6f3836f82786aae14ee5d0c98f4c6
2010-10-07 13:44:51 -07:00
Jeff Brown
6d462b1221 am 56364bcd: am 78d15acf: Merge "Make secure views tolerate IME overlays." into gingerbread
Merge commit '56364bcd0d1a1b064db3e83fdb64f948ce5c2ad7'

* commit '56364bcd0d1a1b064db3e83fdb64f948ce5c2ad7':
  Make secure views tolerate IME overlays.
2010-10-07 12:20:45 -07:00
Jeff Brown
35cf0e9854 Make secure views tolerate IME overlays.
Change-Id: I3cf09b9d91045f4d9c558b4aace482a7b0bbd3d8
2010-10-05 12:26:23 -07:00
Jeff Brown
c0242197ea am ea58d1ba: am e951ef07: Merge "Wait for initial device scan to finish before updating config." into gingerbread
Merge commit 'ea58d1bac2960c1794f048bfa5d1a60b1a3d23a1'

* commit 'ea58d1bac2960c1794f048bfa5d1a60b1a3d23a1':
  Wait for initial device scan to finish before updating config.
2010-10-01 21:49:39 -07:00
Jeff Brown
76025e44e4 am e11b76d3: am f6295b35: Merge "Minor logging changes to input dispatcher to help with debugging." into gingerbread
Merge commit 'e11b76d3efb056edea301d53a354d0730adf3520'

* commit 'e11b76d3efb056edea301d53a354d0730adf3520':
  Minor logging changes to input dispatcher to help with debugging.
2010-10-01 21:49:29 -07:00
Jeff Brown
1ad00e96fe Wait for initial device scan to finish before updating config.
This change narrows the opportunity for a race condition setting the
resource Configuration while devices are being updated.

Change-Id: I58efa563f4129ab0fce7108511d16a99dff7e451
2010-10-01 18:55:43 -07:00
Jeff Brown
2806e381cf Minor logging changes to input dispatcher to help with debugging.
Added dumpsys reporting to EventHub.
Made the formatting a bit clearer.
Added 'Locked' suffix to some internal methods of EventHub.

Change-Id: Ic449560bcce378f6361895d27c66854e9724abb0
2010-10-01 18:05:13 -07:00
Jeff Brown
4adce423e4 am 57fa3e8b: am 9e32a438: Merge "Support haptic feedback for virtual keys defined in key layout." into gingerbread
Merge commit '57fa3e8b4c94125ddb5be015dd7fbde4a458894f'

* commit '57fa3e8b4c94125ddb5be015dd7fbde4a458894f':
  Support haptic feedback for virtual keys defined in key layout.
2010-10-01 17:08:34 -07:00
Jeff Brown
956c0fb238 Support haptic feedback for virtual keys defined in key layout.
Change-Id: I83e4108a87332692e03791dc066206becbc7941f
2010-10-01 15:08:56 -07:00
Jeff Brown
3f0fd1897c am 5d3cef8a: am e0c12c88: Merge "Move verbose logging of device capabilities to dumpsys." into gingerbread
Merge commit '5d3cef8a6d1baec29512764b9e0ba240ccd7fcfe'

* commit '5d3cef8a6d1baec29512764b9e0ba240ccd7fcfe':
  Move verbose logging of device capabilities to dumpsys.
2010-09-30 18:12:28 -07:00
Jeff Brown
26c94ff615 Move verbose logging of device capabilities to dumpsys.
Change-Id: I5d55eaebfdf049bd1ac1e7bab2758886cfefc9d7
2010-09-30 15:34:48 -07:00
Jeff Brown
3c2450fbfb Fix bug in split touches.
Cherry-picked down to master.

Change-Id: I786761bd6aecc021ae22d8c9a022324f3a9980d1
2010-09-28 13:41:00 -07:00
Jeff Brown
1c32258443 Fix bug in split touches.
Change-Id: I808c2201a06938f82817058059f4ddcc9b1a9ae2
2010-09-28 13:26:42 -07:00
Jeff Brown
2341fd66b9 am 26d5786f: am 9c37447e: Merge "Fix pointer index when splitting secondary pointers." into gingerbread
Merge commit '26d5786fb1a43d82b40fa908e1220a018b748c93'

* commit '26d5786fb1a43d82b40fa908e1220a018b748c93':
  Fix pointer index when splitting secondary pointers.
2010-09-28 12:47:13 -07:00
Jeff Brown
ffb16d601b Fix pointer index when splitting secondary pointers.
Change-Id: Ib01e810ea5b64501b1303000bbef0f0a1db2114e
2010-09-27 20:54:28 -07:00
Jeff Brown
744c559ac7 Add support for transferring touch focus.
Prerequisite for drag and drop.

Change-Id: Iedbe93ed0f3e1c4083130fe66b4ba06d416afce0
2010-09-27 16:10:17 -07:00
Jeff Brown
d1b0a2bfe5 Add suuport for splitting touch events across windows.
This feature is currently used to enable dragging the start and end
selection handles of a TextView at the same time.  Could be used for
other things later.

Deleted some dead code in ArrowKeyMovementMethod and CursorControllers.

Change-Id: I930accd97ca1ca1917aab8a807db2c950fc7b409
2010-09-26 22:20:12 -07:00
Brian Carlstrom
ce802e33d4 Merge "Fix sim-eng build on Hardy" into gingerbread 2010-09-16 23:48:53 -07:00
Jeff Brown
3b6dda9e19 Merge "Ensure input dispatcher and native looper handles EINTR." into gingerbread 2010-09-16 17:12:31 -07:00
Jeff Brown
f67f299036 Ensure input dispatcher and native looper handles EINTR.
Change-Id: I0a42db5f273b9bfe4ab174e4ee65d5d852f9f6bc
2010-09-16 17:04:52 -07:00
Jeff Brown
d8816c3c4c Fix app switch latency optimization.
This optimization was broken due to recent changes in how ANRs are handled.

Change-Id: Ic99248a12755fadac8d4893e7d305b773e038d3d
2010-09-16 16:41:46 -07:00
Brian Carlstrom
17563f9fb3 Fix sim-eng build on Hardy
Older glibc version do not include BSD htole32 and htole64 which are
present in bionic. This worksaround a sim-eng build issue by only
using htole32/htole64 if the host is not little endian.

Change-Id: Ia8d0d36285f3c34c51a331790458e52a21c2925f
2010-09-16 16:28:13 -07:00
Jeff Brown
128e33421b Merge "Input API review." into gingerbread 2010-09-16 12:57:56 -07:00
Jeff Brown
405a1d32e9 Fix input dispatcher regression on launcher drag&drop.
Change-Id: I40e937bd712cd2ed6cceac95dfd1b8c8e070724f
2010-09-16 12:31:46 -07:00
Jeff Brown
40ad470643 Fix NPE when handling certain kinds of ANRs.
Change-Id: Iccef1852e52c84f6f49d30c491431460a10b33d3
2010-09-16 11:02:16 -07:00
Jeff Brown
53a415e6d1 Make input dispatcher only ANR for foreground windows.
Redesigned the input dispatcher's ANR timeout mechanism so it is much
closer to Froyo's policy.  ANR is only ever signalled if the dispatcher
is waiting on a window to finish processing its previous event(s) and
there is new pending input.

In the old code, we tracked the dispatch timeout separately for each
input channel.  This was somewhat complicated and also resulted in the
situation where applications could ANR long after the user had pushed
them into the background.

Change-Id: I666ecada0952d4b95f1d67b9f733842b745c7f4b
2010-09-15 18:52:08 -07:00
Jeff Brown
b5764e066c Input API review.
Drop currently unsupported input features.
Add documentation comments.

Change-Id: I407d2e1dd90c5ee82983a3ccf177430d35ee7592
2010-09-14 20:46:14 -07:00
Jeff Brown
b06cca6228 Merge "Replace epoll() with poll() and rename PollLoop to Looper." into gingerbread 2010-09-14 15:27:33 -07:00
Jeff Brown
59abe7e090 Replace epoll() with poll() and rename PollLoop to Looper.
As part of this change, consolidated and cleaned up the Looper API so
that there are fewer distinctions between the NDK and non-NDK declarations
(no need for two callback types, etc.).

Removed the dependence on specific constants from sys/poll.h such as
POLLIN.  Instead looper.h defines events like LOOPER_EVENT_INPUT for
the events that it supports.  That should help make any future
under-the-hood implementation changes easier.

Fixed a couple of compiler warnings along the way.

Change-Id: I449a7ec780bf061bdd325452f823673e2b39b6ae
2010-09-14 01:59:45 -07:00
Mathias Agopian
35b48d10bc Add logging of various important graphics events
There are 16 events logged in the event log:
SF_APP_DEQUEUE_BEFORE
SF_APP_DEQUEUE_AFTER
SF_APP_LOCK_BEFORE
SF_APP_LOCK_AFTER
SF_APP_QUEUE

SF_REPAINT
SF_COMPOSITION_COMPLETE
SF_UNLOCK_CLIENTS
SF_SWAP_BUFFERS
SF_REPAINT_DONE

SF_FB_POST_BEFORE
SF_FB_POST_AFTER
SF_FB_DEQUEUE_BEFORE
SF_FB_DEQUEUE_AFTER
SF_FB_LOCK_BEFORE
SF_FB_LOCK_AFTER

all events log the buffer conserned and a timestamp in microseconds.

by default the logging is not enabled, to turn it on:
adb shell service call SurfaceFlinger 1006 i31 1
adb shell setprop debug.graphic_log 1

The effect is immediate in SurfaceFlinger, but applications need to be
restarted.

Change-Id: Ifc2e31f7aed072d9a7dede20ff2ce59231edbec1
2010-09-13 23:16:58 -07:00
Jeff Brown
a665ca805c Input dispatcher ANR handling enhancements.
This change is essentially a rewrite of the main input dispatcher loop
with the target identification folded in.  Since the input dispatcher now
has all of the window state, it can make better decisions about
when to ANR.

Added a .5 second deadline for processing app switch keys.  This behavior
predates Gingerbread but had not previously been ported.

Fixed some timing inaccuracies in the ANR accounting that could cause
applications to ANR sooner than they should have.

Added a mechanism for tracking key and motion events that have been
dispatched to a window so that appropriate cancelation events can be
synthesized when recovering from ANR.  This change helps to keep
applications in sync so they don't end up with stuck buttons upon
recovery from ANRs.

Added more comments to describe the tricky parts of PollLoop.

Change-Id: I13dffca27acb436fc383980db536abc4d8b9e6f1
2010-09-12 16:52:03 -07:00
Jeff Brown
61ce3982e1 Fix key repeat delay.
Change-Id: I6216e082324ee29bf50e37acc673350ca5417c4d
2010-09-08 12:28:43 -07:00
Jeff Brown
af30ff6020 Add support for secure views.
Added the MotionEvent.FLAG_WINDOW_IS_OBSCURED flag which is set by the
input manager whenever another visible window is partly or wholly obscured
the target of a touch event so that applications can filter touches
accordingly.

Added a "filterTouchesWhenObscured" attribute to View which can be used to
enable filtering of touches when the view's window is obscured.

Change-Id: I936d9c85013fd2d77fb296a600528d30a29027d2
2010-09-08 11:50:55 -07:00
Jeff Brown
774cf1baa1 Remove incomplete input device enumeration NDK API.
Change-Id: I32de74ff5fcf0e29179a2aee03ddabd22fa485bb
2010-08-31 15:24:55 -07:00
Jeff Brown
38a7fabd96 Input device calibration and capabilities.
Finished the input device capability API.
Added a mechanism for calibrating touch devices to obtain more
accurate information about the touch contact area.
Improved pointer location to show new coordinates and capabilities.
Optimized pointer location display and formatting to avoid allocating large
numbers of temporary objects.  The GC churn was causing the application to
stutter very badly when more than a couple of fingers were down).
Added more diagnostics.

Change-Id: Ie25380278ed6f16c5b04cd9df848015850383498
2010-08-30 18:16:43 -07:00
Sean McNeil
39f04ee5cf Only monitor recognized uevent devices.
system_server can potentially monitor uevent devices that are
of no use to it. For instance, an accelerometer implementation
as uevents. This would cause the process to be busy when
unnecessary. If a device cannot be classified, don't monitor it.

Change-Id: I489cc453bdce7cb376102cba67a9ea470e13292d
2010-08-23 12:54:30 -07:00
Mathias Agopian
385648ba93 Merge "remove unused pixel format" into gingerbread 2010-08-19 13:37:35 -07:00
Jeff Brown
869347fc62 Make the throttling more sensitive to end-to-end latency.
The code now takes into account the time when the event was generated.
So with a 60Hz throttling rate, it ensures that a motion event will not
be delayed due to throttling by any more than 1/60th of second past
the time it was generated.

Change-Id: Iaea1d4f76e79036b4a18873485230731c3cd63c3
2010-08-19 13:26:58 -07:00
Mathias Agopian
c04cffd570 remove unused pixel format
Change-Id: I55bc3cc41385743c07f7e4de06335c922f746f73
2010-08-19 13:11:42 -07:00
Jeff Brown
542412c8c9 Add support for throttling motion events.
Change-Id: I24b3a17753e91ecda60a60fe5cd2e6b3260e033d
2010-08-18 16:58:27 -07:00
Sean McNeil
2e7a530242 Only monitor recognized uevent devices.
system_server can potentially monitor uevent devices that are
of no use to it. For instance, an accelerometer implementation
as uevents. This would cause the process to be busy when
unnecessary. If a device cannot be classified, don't monitor it.

Change-Id: Ib2c93105e7d746d9c1a7414bea8bab3fb8c0b70a
2010-08-18 13:53:36 -07:00
Jeff Brown
36cb115c77 Merge "Fix some input device mapping bugs with certain drivers." into gingerbread 2010-08-18 13:38:32 -07:00
Jeff Brown
d64c855821 Fix some input device mapping bugs with certain drivers.
On single-touch devices, pointer up/down is signalled by a BTN_TOUCH
key event.  Previously we handled BTN_TOUCH immediately but some drivers
may produce the sequence BTN_TOUCH, ABS_X, ABS_Y, SYN_REPORT on pointer down
which caused us to emit a bad initial pointer down location.
Now we wait for SYN_REPORT before reporting the up or down.

On multi-touch devices, pointer up can be signalled by as little as
the sequence SYN_MT_REPORT, SYN_REPORT.  This change ensures that we
handle this case.

Added support for reading ABS_MT_PRESSURE when available.
Corrected mapping of touchMajor/touchMinor on single touch devices.
Minor code cleanup.

Change-Id: Ic7ec4811241ed85a06e59b8a839ca05180d491d4
2010-08-18 13:37:45 -07:00
Jens Gulin
7dcaa58496 Keep track of remaining fd when devices are removed
Sometimes the wrong fd was accessed when the device was addressed
by device id.

The earlier implementation assumed that two arrays were in sync
but one of them was compacted when devices were removed. Instead
of that dependency the device now keeps track of it's file descriptor.

Change-Id: Ib0f320603aafb07ded354bc3687de9759c9068f2
2010-08-18 10:54:03 -07:00
Jeff Brown
827630744a Optimize EventHub reads.
Change-Id: Id7d09c0a6e5c741c1e29becd2b6560772c5ff372
2010-08-17 19:40:26 -07:00
Jeff Brown
0cacb87f02 Fix possible race conditions during channel unregistration.
Previously, the input dispatcher assumed that the input channel's
receive pipe file descriptor was a sufficiently unique identifier for
looking up input channels in its various tables.  However, it can happen
that an input channel is disposed and then a new input channel is
immediately created that reuses the same file descriptor.  Ordinarily
this is not a problem, however there is a small opportunity for a race
to arise in InputQueue.

When InputQueue receives an input event from the dispatcher, it
generates a finishedToken that encodes the channel's receive pipe fd,
and a sequence number.  The finishedToken is used by the ViewRoot
as a handle for the event so that it can tell the InputQueue when
the event has finished being processed.

Here is the race:

1. InputQueue receives an input event, assigns a new finishedToken.
2. ViewRoot begins processing the input event.
3. During processing, ViewRoot unregisters the InputChannel.
4. A new InputChannel is created and is registered with the Input Queue.
   This InputChannel happens to have the same receive pipe fd as
   the one previously registered.
5. ViewRoot tells the InputQueue that it has finished processing the
   input event, passing along the original finishedToken.
6. InputQueue throws an exception because the finishedToken's receive
   pipe fd is registered but the sequence number is incorrect so it
   assumes that the client has called finish spuriously.

The fix is to include a unique connection id within the finishedToken so
that the InputQueue can accurately confirm that the token belongs to
the currently registered InputChannel rather than to an old one that
happened to have the same receive pipe fd.  When it notices this, it
ignores the spurious finish.

I've also made a couple of other small changes to avoid similar races
elsewhere.

This patch set also includes a fix to synthesize a finished signal
when the input channel is unregistered on the client side to
help keep the server and client in sync.

Bug: 2834068
Change-Id: I1de34a36249ab74c359c2c67a57e333543400f7b
2010-08-17 17:03:42 -07:00
Jeff Brown
8d4dfd25f7 Fix safe mode and KeyEvent.getMaxKeyCode().
Bug: 2901731
Change-Id: I78617c1b9dee3790fc590e5af4b5083368873184
2010-08-10 16:28:03 -07:00
Jeff Brown
b51719b9ae Improve thread safety of input mappers.
Also fixed bug where old touch screen size could be reported by
getMotionRange if an orientation change occurred but the user has not
yet touched the screen.

Bug: 2877345
Change-Id: I7878f47458f310ed6ebe6a5d1b2c9bec2c598ab9
2010-07-30 14:43:58 -07:00
Jeff Brown
82de2fcdd0 Fix touch input in landscape mode.
Change-Id: I7d47e9b02e6443ed604a6bf842028a5db934d90d
2010-07-29 13:05:52 -07:00
Jeff Brown
f67c53eee3 DO NOT MERGE: Fix input event injection ANRs on UI thread.
Added a new asynchronous injection mode and made the existing
synchronization mechanism more robust.

Change-Id: Ia4aa04fd9b75ea2461a844c5b7933c831c1027e6
2010-07-29 12:54:27 -07:00
Jeff Brown
e57e895080 Refactor input reader to support new device types more easily.
Refactored the input reader so that each raw input protocol is handled
by a separate subclass of the new InputMapper type.  This way, behaviors
pertaining to keyboard, trackballs, touchscreens, switches and other
devices are clearly distinguished for improved maintainability.

Added partial support for describing capabilities of input devices
(incomplete and untested for now, will be fleshed out in later commits).

Simplified EventHub interface somewhat since InputReader is taking over
more of the work.

Cleaned up some of the interactions between InputManager and
WindowManagerService related to reading input state.

Fixed swiping finger from screen edge into display area.

Added logging of device information to 'dumpsys window'.

Change-Id: I17faffc33e3aec3a0f33f0b37e81a70609378612
2010-07-28 14:16:15 -07:00
Jeff Brown
f26db0d6c5 Fix trackball down and movement bugs.
Bug: 2823788
Change-Id: Icb0c392b58f7e735614460b5eb87439cb73ac4f2
2010-07-16 17:46:03 -07:00
Jeff Brown
3cf1c9b844 Fix individual pointer id up/down reporting.
Fix a minor threading bug in InputManager dump.

Change-Id: Ic2eecf7df5a8dc9f40561fcb03ebe58a2c073778
2010-07-16 15:11:24 -07:00
Dianne Hackborn
0e8852766d Implement native key pre-dispatching to IMEs.
This significantly re-works the native key dispatching code to
allow events to be pre-dispatched to the current IME before
being processed by native code.  It introduces one new public
API, which must be called after retrieving an event if the app
wishes for it to be pre-dispatched.

Currently the native code will only do pre-dispatching of
system keys, to avoid significant overhead for gaming input.
This should be improved to be smarted, filtering for only
keys that the IME is interested in.  Unfortunately IMEs don't
currently provide this information. :p

Change-Id: Ic1c7aeec8b348164957f2cd88119eb5bd85c2a9f
2010-07-15 22:05:33 -07:00
Jeff Brown
5c1ed84a2d Add support for new input sources.
Added several new coordinate values to MotionEvents to capture
touch major/minor area, tool major/minor area and orientation.

Renamed NDK input constants per convention.

Added InputDevice class in Java which will eventually provide
useful information about available input devices.

Added APIs for manufacturing new MotionEvent objects with multiple
pointers and all necessary coordinate data.

Fixed a bug in the input dispatcher where it could get stuck with
a pointer down forever.

Fixed a bug in the WindowManager where the input window list could
end up containing stale removed windows.

Fixed a bug in the WindowManager where the input channel was being
removed only after the final animation transition had taken place
which caused spurious WINDOW DIED log messages to be printed.

Change-Id: Ie55084da319b20aad29b28a0499b8dd98bb5da68
2010-07-15 18:32:33 -07:00
Jeff Brown
a50ee3ecb3 Don't build framework tests for simulator target.
Change-Id: I70f29c7eb307e4f3ec5702f4eb9d97b4342e2f36
2010-07-14 22:55:02 -07:00
Mathias Agopian
48c3476371 Remove the YV16 format for simplicity's sake.
Change-Id: Iee03d100933ba0c67b13d51e0435be3b4cd953cf
2010-07-14 15:12:05 -07:00
Dianne Hackborn
ce838a265d IME events are now dispatched to native applications.
And also:

- APIs to show and hide the IME, and control its interaction with the app.
- APIs to tell the app when its window resizes and needs to be redrawn.
- API to tell the app the content rectangle of its window (to layout
  around the IME or status bar).

There is still a problem with IME interaction -- we need a way for the
app to deliver events to the IME before it handles them, so that for
example the back key will close the IME instead of finishing the app.

Change-Id: I37b75fc2ec533750ef36ca3aedd2f0cc0b5813cd
2010-07-13 18:36:46 -07:00
Jeff Brown
8575a87b0d Add initial gamepad support.
Change-Id: I0439648f6eb5405f200e4223c915eb3a418b32b9
2010-07-13 17:04:57 -07:00
Dianne Hackborn
9147d11a5f Add ANativeWindow API for directly drawing to the surface bits.
Also other cleanup and fixes:

- We now properly set the default window format to 565.
- New APIs to set the window format and flags from native code.
- Tweaked glue for simpler handling of the "destroy" message.
- Um, other stuff.

Change-Id: Id7790a21a2fa9a19b91854d225324a7c1e7c6ade
2010-07-09 16:58:19 -07:00
Dianne Hackborn
3c5d125ed7 Add new glue code for writing native apps.
This factors out the boiler-plate code from the sample
app to a common glue code that can be used for everyone
writing this style of app: a dedicated app thread that
takes care of waiting for events and processing them.

As part of doing this, ALooper has a new facility to allow
registration of fds that cause ALooper_pollOnce() to return
the fd that has data, allowing the app to drive the loop
without callbacks.  Hopefully this makes some people feel better. :)

Also do some other cleanup of the ALooper API, plus some
actual documentation.

Change-Id: Ic53bd56bdf627e3ba28a3c093faa06a92be522b8
2010-07-08 11:06:59 -07:00
Jeff Brown
f16c26dec9 More native input dispatch work.
Removed old input dispatch code.
Refactored the policy callbacks.
Pushed a tiny bit of the power manager state down to native.
Fixed long press on MENU.
Made the virtual key detection and cancelation a bit more precise.

Change-Id: I5d8c1062f7ea0ab3b54c6fadb058c4d5f5a9e02e
2010-07-03 19:23:01 -07:00
Mathias Agopian
1764c73b55 remove unused YUV formats
Change-Id: Ie84616f842c7e0329d68e67e65a65d510558004b
2010-07-01 21:17:56 -07:00
Dianne Hackborn
e12e3d7692 Merge "Introduce official public NativeWindow type." into gingerbread 2010-06-30 16:05:30 -07:00
Mathias Agopian
05dedd17ec Merge "fix live wallpapers on Droid" into gingerbread 2010-06-30 15:59:02 -07:00
Mathias Agopian
a8f3e4e53c fix live wallpapers on Droid
On omap3 h/w we force opaque formats to RGB_565 instead of RGBX_8888
because the GL driver doesn't support it. RGBX_8888 is always remapped
to RGBA_8888.

Change-Id: I0bfabeb98c8d3a399079e6797cf2a0ee95915324
2010-06-30 15:43:47 -07:00
Dianne Hackborn
4b5e91e482 Introduce official public NativeWindow type.
Not yet hooked up to anything in the NDK, but requires renaming
the existing android_native_window_t type everywhere.

Change-Id: Iffee6ea39c93b8b34e20fb69e4d2c7c837e5ea2e
2010-06-30 15:32:04 -07:00
Jeff Brown
c393eb6cf5 Fix injection of specially intercepted keys like HOME.
This change mainly unwinds a premature optimization in the
dispatch pipeline.
To test HOME injection, run 'adb shell input keyevent 3'.

Change-Id: I1c4b7377c205da7c898014b8b07fc6dc1d46e4dd
2010-06-30 14:41:59 -07:00
Dianne Hackborn
189ed23c10 Implement default key handling for native code.
The native code now maintains a list of all keys that may use
default handling.  If the app finishes one of these keys
without handling it, the key will be passed back off to Java
for default treatment.

Change-Id: I6a842a0d728eeafa4de7142fae573f8c11099e18
2010-06-30 10:49:40 -07:00
Jeff Brown
4036f7f2b4 Fix native input dispatch in the emulator.
Set a default orientation of ROTATION_0.
Added some more careful checks based on whether we have valid
absolute axis information from the driver.
Reset key repeating during configuration changes since the keyboard
device may have been removed.

Change-Id: I685960828acffcb17595fc5683309e8064a76714
2010-06-29 16:52:21 -07:00
Dianne Hackborn
9c7f8186ae Update native activity & event APIs to follow correct conventions.
Change-Id: Ie64fb3a9c68bc9c117fa5621b75d1f609e304e0e
2010-06-29 10:43:54 -07:00
Jeff Brown
50de30a523 Native input event dispatching.
Target identification is now fully native.
Fixed a couple of minor issues related to input injection.
Native input enabled by default, can be disabled by setting
WindowManagerPolicy.ENABLE_NATIVE_INPUT_DISPATCH to false.

Change-Id: I7edf66ed3e987cc9306ad4743ac57a116af452ff
2010-06-28 19:10:54 -07:00
Jens Gulin
af997c4962 Keep track of remaining fd when devices are removed
Sometimes the wrong fd was accessed when the device was addressed
by device id.

The earlier implementation assumed that two arrays were in sync
but one of them was compacted when devices were removed. Instead
of that dependency the device now keeps track of it's file descriptor.

Change-Id: I2b8a793d76b89ab464ae830482b309fe86031671
2010-06-28 11:36:14 +02:00
Christopher Tate
d974e00697 Remember to initialize timestamps in the dispatch allocator
Change-Id: I83a2d353c34ff84a7d130e602c6dedc6a5541944
2010-06-23 16:51:07 -07:00
Dianne Hackborn
4d96bb6ae3 First stab at attaching native event dispatching.
Provides the basic infrastructure for a
NativeActivity's native code to get an object representing
its event stream that can be used to read input events.

Still work to do, probably some API changes, and reasonable
default key handling (so that for example back will still
work).

Change-Id: I6db891bc35dc9683181d7708eaed552b955a077e
2010-06-22 11:21:50 -07:00
Mathias Agopian
3f3a74a53a remove unused YUV formats
Change-Id: Id0ae28b1700cf771cdbe0ca27b139d32cab90b2a
2010-06-21 18:22:09 -07:00
Mathias Agopian
b16fa651dd Merge "Added support for the GL_TEXTURE_EXTERNAL target" into gingerbread 2010-06-21 15:11:18 -07:00
Jeff Brown
51d45a710e More native input event dispatching.
Added ANRs handling.
Added event injection.
Fixed a NPE ActivityManagerServer writing ANRs to the drop box.
Fixed HOME key interception.
Fixed trackball reporting.
Fixed pointer rotation in landscape mode.

Change-Id: I50340f559f22899ab924e220a78119ffc79469b7
2010-06-21 13:59:34 -07:00
Jeff Brown
f4a4ec2063 Even more native input dispatch work in progress.
Added more tests.
Fixed a regression in Vector.
Fixed bugs in pointer tracking.
Fixed a starvation issue in PollLoop when setting or removing callbacks.
Fixed a couple of policy nits.

Modified the internal representation of MotionEvent to be more
efficient and more consistent.

Added code to skip/cancel virtual key processing when there are multiple
pointers down.  This helps to better disambiguate virtual key presses
from stray touches (such as cheek presses).

Change-Id: I2a7d2cce0195afb9125b23378baa94fd2fc6671c
2010-06-17 13:27:16 -07:00
Mathias Agopian
0a91775c4d Added support for the GL_TEXTURE_EXTERNAL target
This will allow us to support YUV surfaces.

Change-Id: I2d4da75f1006a5285bdc552695d4caeecccf2183
2010-06-15 17:31:17 -07:00
Jeff Brown
c10612c77a Merge "More work in progress on native events." into gingerbread 2010-06-15 16:44:23 -07:00
Jeff Brown
54bc281639 More work in progress on native events.
Refactored the code to eliminate potential deadlocks due to re-entrant
calls from the policy into the dispatcher.  Also added some plumbing
that will be used to notify the framework about ANRs.

Change-Id: Iba7a10de0cb3c56cd7520d6ce716db52fdcc94ff
2010-06-15 16:43:18 -07:00
Jeff Brown
f69280ef72 Support for multiple tests
The build system enforces some invariants that were being ignored
before.

Change-Id: Ie7675042af7f961a507386c13b2a0b592b591af8
2010-06-14 15:46:08 -07:00
Jeff Brown
66d9df50da Fix include paths.
Change-Id: Ifda45688f9f02710a74d5d7a7d902bacf1441e2e
2010-06-13 19:35:19 -07:00
Jeff Brown
e839a589bf Native input dispatch rewrite work in progress.
The old dispatch mechanism has been left in place and continues to
be used by default for now.  To enable native input dispatch,
edit the ENABLE_NATIVE_DISPATCH constant in WindowManagerPolicy.

Includes part of the new input event NDK API.  Some details TBD.

To wire up input dispatch, as the ViewRoot adds a window to the
window session it receives an InputChannel object as an output
argument.  The InputChannel encapsulates the file descriptors for a
shared memory region and two pipe end-points.  The ViewRoot then
provides the InputChannel to the InputQueue.  Behind the
scenes, InputQueue simply attaches handlers to the native PollLoop object
that underlies the MessageQueue.  This way MessageQueue doesn't need
to know anything about input dispatch per-se, it just exposes (in native
code) a PollLoop that other components can use to monitor file descriptor
state changes.

There can be zero or more targets for any given input event.  Each
input target is specified by its input channel and some parameters
including flags, an X/Y coordinate offset, and the dispatch timeout.
An input target can request either synchronous dispatch (for foreground apps)
or asynchronous dispatch (fire-and-forget for wallpapers and "outside"
targets).  Currently, finding the appropriate input targets for an event
requires a call back into the WindowManagerServer from native code.
In the future this will be refactored to avoid most of these callbacks
except as required to handle pending focus transitions.

End-to-end event dispatch mostly works!

To do: event injection, rate limiting, ANRs, testing, optimization, etc.

Change-Id: I8c36b2b9e0a2d27392040ecda0f51b636456de25
2010-06-13 17:42:16 -07:00
Mathias Agopian
579b3f88d0 allow re-targetting of surfaces
Surfaces can now be parcelized and sent to remote
processes. When a surface crosses a process
boundary, it looses its connection with the
current process and gets attached to the new one.

Change-Id: I39c7b055bcd3ea1162ef2718d3d4b866bf7c81c0
2010-06-08 20:10:02 -07:00
Mathias Agopian
b7e930db17 split surface management from surface's buffers management
Change-Id: If3c5655d1231f8f0c49ba68f972b1b20c93b3f87
2010-06-04 18:57:41 -07:00
Mathias Agopian
49753266d2 fix a bug where fading in/out of opaque 32-bits windows wasn't working
opaque 32-bits windows are now allocated as RGBX_8888 buffers and
SurfaceFlinger always uses GL_MODULATE instead of trying to
optimize to GL_REPLACE when possible (makes no sense on
h/w accelerated GL).

we still have a small hack for devices that don't support
RGBX_8888 in their gralloc implementation where we revert to
RGBA_8888.
2010-06-01 15:57:44 -07:00
Mathias Agopian
5629eb1676 when a zero dimension buffer is allocated, turn the allocation into
a 1x1 buffer instead of Nx1 (or 1xN)

Change-Id: I27eeb15e83e13002dd9405f4e52b54f7dffc0fe7
2010-04-15 15:23:25 -07:00
Mathias Agopian
c8620b60d6 fix [2545826] calling into gralloc with external lock held
Change-Id: I2d0e017382404c684c768a0dd0423d574213f10a
2010-03-25 14:34:49 -07:00
Mathias Agopian
55fa25161a implement connect/disconnect in our native_window_t implementations
the framebuffer implementation doesn't do anything special with this
but the surfaceflinger implementation makes sure the surface is not used
by two APIs simultaneously.

Change-Id: Id4ca8ef7093d68846abc2ac814327cc40a64b66b
2010-03-11 15:06:54 -08:00
Christopher Tate
9855a0575e Calculate bitmask array sizes correctly in the EventHub
We've gotten lucky to date:  the previous calculation of bitmask array
sizes, (maxval+1)/8 only works properly when 'maxval' is one less than
a multiple of 8.  Fortunately, this has either been the case for us,
or there has been sufficient 'unused' space at the end of the defined
max value range that we haven't wound up overreading/overwriting the
allocated buffers.

Change-Id: I563a93a86644ab9f19489565e06c28e06bb53abc
2010-03-04 16:32:32 -08:00
Christopher Tate
2032f98f8c Fix #2489986 : The key bitmask needs to cover all possible keys
Change-Id: Ieebd2f879e6b6fbc0388655dd66f34be89e809a0
2010-03-04 16:00:29 -08:00
Dianne Hackborn
71c3eb2a38 Maybe fix issue #2482201: Paired bluetooth device looks like a qwerty keyboard
We now only consider a device to be a default keyboard if its name
has "-keypad".  A hack, but whatever.

Also add some debug logging for the input state to help identify such
issues in the future.
2010-03-02 17:37:45 -08:00
Mathias Agopian
98e71ddaed remove a dependency of GraphicBuffer (libui) on Parcel (libbinder).
Add a Flattenable interface to libutils which can be used to flatten
an object into bytestream + filedescriptor stream.
Parcel is modified to handle Flattenable. And GraphicBuffer implements
Flattenable.

Except for the overlay classes libui is now independent of libbinder.
2010-02-21 23:27:25 -08:00
Mathias Agopian
b6121422ef Remove a dependency of Region (libui) on Parcel (libbinder). 2010-02-17 20:26:47 -08:00
Mathias Agopian
3db2164051 fix a bug I introduced recently where YUV formats would crash the system 2010-02-16 20:43:39 -08:00
Mathias Agopian
54ed4f6282 get rid off the YUV formats at the libui layer 2010-02-16 17:33:37 -08:00
Mathias Agopian
9cce325fae split libsurfaceflinger_client and libcamera_client out of libui 2010-02-11 13:16:22 -08:00
Wu-cheng Li
1776e77c68 Merge "Remove some logs." 2010-02-10 00:07:36 -08:00
Wu-cheng Li
d5a4f1ff5b Remove some logs. 2010-02-10 13:02:17 +08:00
Wu-cheng Li
a05c822704 Add exposure compensation parameter.
bug:2375993
2010-02-09 18:28:50 +08:00
Wu-cheng Li
391f3f8b5e Add float support for set and get in CameraParameters.
bug:2375989
bug:2375987
2010-01-31 17:03:10 +08:00
Wu-cheng Li
077c40fee3 Add focal length and view angle API.
bug:2375989,2375987
2010-01-30 20:36:04 +08:00
Chih-Chung Chang
556a6fed12 Merge "Add support for setting camera display orientation." 2010-01-27 09:20:19 -08:00
Chih-Chung Chang
f091e833d3 Add support for setting camera display orientation. 2010-01-26 11:07:07 -08:00
Nick Pelly
1b5cf329ea Revert "Fix failure to open AVRCP input device due to EPERM."
This reverts commit e6b1bbd8acca3f6e174c24cf4eb23a66db2d08a2.
2010-01-26 10:28:52 -08:00
Nick Pelly
2b2c2e3a35 am 425324e9: am e834722f: Merge "Fix failure to open AVRCP input device due to EPERM." into eclair
Merge commit '425324e97bba75cd69bb6c81de6248529540e6fe'

* commit '425324e97bba75cd69bb6c81de6248529540e6fe':
  Fix failure to open AVRCP input device due to EPERM.
2010-01-25 18:12:47 -08:00
Wu-cheng Li
88eeff5270 Change key to KEY_SUPPORTED_JPEG_THUMBNAIL_SIZES for consistency.
bug:2375986
2010-01-25 15:20:23 +08:00
Mathias Agopian
519f29f5d8 Merge "return an error when Surface::lock() is called while the surface is already locked." 2010-01-22 11:52:08 -08:00
Mathias Agopian
9014726d89 return an error when Surface::lock() is called while the surface is already locked. 2010-01-22 11:47:55 -08:00
Chih-Chung Chang
52e7200b6e Add an orientation parameter for overlay, so we can do camera preview in portrait mode. 2010-01-21 20:20:08 -08:00
Nick Pelly
c81bb207c6 Fix failure to open AVRCP input device due to EPERM.
Sleep for 100us and try to open the input device again if it fails, with a
maximum of 10 attempts.

We need the retry logic because setting permissions on a new input device is
racy. The init process watches for new input device (via uevent) and sets the
permission on them in devices.c:make_device(). However at the same time
EventHub.cpp watches for new input devices from the system_server process, and
immediately tries to open them. I can't see a simple way to avoid this race
condition.

As best as I can tell this race condition has always exisited.
There must have been some timing change that happened recently that causes us
to hit this race condition much more often. See repro notes in referenced bug.

Bug: 2375632
2010-01-20 19:56:24 -08:00
Mathias Agopian
963abad79a fix some aspects of [2258746] native crash in launcher2
Surface::validate() could sometimes dereference a null pointer before checking it wasn't null.
This will prevent the application to crash when given bad parameters or used incorrectly.
However, the bug above probably has another cause.
2009-11-13 15:26:29 -08:00
Romain Guy
092fa4beaf Revert change incorrectly submitted as part of change #32153.
Change-Id: I31c52beff03c0d038a257fc151eff3b8da60eddc
2009-11-05 15:49:22 -08:00
Romain Guy
471afca7fc Prevent crash in Home when using widgets whose ids collide with Home's
resources.

Bug #2228943.

Approved by mcleron, triaged by ryanpc.

Change-Id: Idf40f3b09502ae5d0d3b9a6a72c265a2de2ffca2
2009-11-05 15:40:35 -08:00
Mathias Agopian
6fee064809 fix[2228133] pixelflinger ignores the "vertical stride" leading to artifacts when playing back video
we lost the concept of vertical stride when moving video playback to EGLImage.
Here we bring it back in a somewhat hacky-way that will work only for the
softgl/mdp backend.
2009-11-02 17:48:33 -08:00
Mathias Agopian
54ba51dff2 fix [2143798] Need to figure out how to do video
Use EGLImageKHR instead of copybit directly.
    We now have the basis to use streaming YUV textures (well, in fact
    we already are). When/if we use the GPU instead of the MDP we'll
    need to make sure it supports the appropriate YUV format.

    Also make sure we compile if EGL_ANDROID_image_native_buffer is not supported
2009-10-27 13:13:29 -07:00
Mathias Agopian
38a7fa2ae3 fix [2182249] [MR1] valgrind error in surface flinger 2009-10-15 18:08:15 -07:00
Mathias Agopian
d3144beec6 fix [2170283] SurfaceFlinger crashes on OOM.
when running out of memory, a null handle is returned but the error code may not be set.
In that case we need to return NO_MEMORY instead of NO_ERROR, so that the calling code
won't try to dereference the null pointer.
2009-10-07 18:03:35 -07:00