Commit Graph

1573 Commits

Author SHA1 Message Date
Jeff Brown
7175398247 Merge "Remove the simulator target from all makefiles. Bug: 5010576" 2011-07-12 12:15:07 -07:00
Jeff Brown
baa44b89ec Remove the simulator target from all makefiles.
Bug: 5010576

Change-Id: I04d722f258951a3078fe07899f5bbe8aac02a8e8
2011-07-11 22:12:16 -07:00
Jamie Gennis
c8251a06df SurfaceTexture: add a multi-SurfaceTexture test
This change adds a test that does simple, unverified GL rendering to
multiple SurfaceTextures.

Change-Id: I51a41d68ae5a27e01ae93842242897b0d3558ca6
2011-07-11 19:06:39 -07:00
Mathias Agopian
cb8be17537 Merge "Fix typo in an assert's log" 2011-07-11 18:30:29 -07:00
Mathias Agopian
f6f177f2e2 Fix typo in an assert's log
Change-Id: I94883a23a0a92eaf3e4976f942f747a2137499ac
2011-07-11 16:26:18 -07:00
Jamie Gennis
0d0c5a6d6b Merge "EGL: fix the ANativeWindow size/fmt override" 2011-07-11 15:47:20 -07:00
Jamie Gennis
bee205fd58 EGL: fix the ANativeWindow size/fmt override
This change fixes how the Android EGL layer overrides the size and
format of an ANativeWindow in eglCreateWindowSurface.  The new behavior
is to leave the size untouched when overriding the format.  The previous
behavior was to reset the ANativeWindow to use the default size set by
the ANativeWindow implementation.

It also adds two new 'perform' methods to the ANativeWindow interface:
set_buffers_dimensions and set_buffers_format, and redefines the
behavior of set_buffers_geometry to be the combination of these two new
methods.

Additionally, this change adds an error check for the return value of
the new native_window_set_buffers_format call, which required adding a
(stub) handler for to FramebufferNativeWindow.

Change-Id: I805c7ccd8d4730dfb132d10d8bc3fb058a0b9df1
2011-07-11 12:31:45 -07:00
Jeff Brown
e16986cae2 Eliminate single-process mode.
Bug: 5010576

Change-Id: Id450dc83efed4897d1e4ff451530fed14457aace
2011-07-08 19:54:07 -07:00
Mathias Agopian
6163091a2c Fix EGLUtils::selectConfigForPixelFormat()
- renderscript now calls EGL directly instead of relying on this function
- surfaceflinger also does its own EGLConfig selection
- selectConfigForPixelFormat stays for legacy reason (many tests use it) but
it now only tries to match the alpha channel of the format rather than the
format itself.

this will allow implementations who don't support the exact formats
defined in the HAL to work properly.

Bug: 4998223

Change-Id: Ic664dfc14d5072a514b6f77a115d1521bfc1578f
2011-07-08 14:37:05 -07:00
Glenn Kasten
4fb2427591 Add C++ thread API androidGetThreadSchedulingGroup
This API is intended for applications that need to read a thread's
scheduling group, while using the higher-level (C++) family of thread APIs.

Change-Id: I5e58017f74c3989b20b5b1cc2bc4483c95720520
2011-07-08 10:11:08 -07:00
Jamie Gennis
798ff739a1 Merge "SurfaceTexture: enable newly passing tests." 2011-07-07 14:42:12 -07:00
Jamie Gennis
47dd726460 SurfaceTexture: enable newly passing tests.
This change enables the following four SurfaceTextures tests:
  UpdateTexImageBeforeFrameFinishedWorks
  UpdateTexImageAfterFrameFinishedWorks
  RepeatedUpdateTexImageBeforeFrameFinishedWorks
  RepeatedUpdateTexImageAfterFrameFinishedWorks

Change-Id: I7632630bc97873e50d4a765ffc44a86f16ae62f1
2011-07-06 14:47:47 -07:00
Glenn Kasten
be3c018f8b Merge "Add Thread::join" 2011-07-06 11:37:53 -07:00
Mathias Agopian
429526c326 Merge "fix ScreenshotsOfProtectedBuffersFail" 2011-07-06 11:10:06 -07:00
Mathias Agopian
7946e416b6 Merge "return an error code with gralloc buffer allocation failures" 2011-07-06 11:09:55 -07:00
Glenn Kasten
f44c896b09 Merge "Thread ID zero for androidSetThreadSchedulingGroup" 2011-07-05 15:08:31 -07:00
Mathias Agopian
9303eee7dc fix ScreenshotsOfProtectedBuffersFail
- put the test window at the front most screen position
- use RGBA_8888 which is a mandatory format
- handle devices that don't support the protected usage flags

Bug: 4950464

Change-Id: I0005fb667cfe094e5978816e2924b294c5ef817e
2011-07-01 15:41:32 -07:00
Mathias Agopian
d9e8c64c3d return an error code with gralloc buffer allocation failures
Change-Id: I471e5d37ea7a42fc8a0f93446ee3b4229da37807
2011-07-01 14:53:49 -07:00
Pannag Sanketi
19e0a8bfe9 Merge "Minor fix in SurfaceTexture" 2011-06-30 18:38:18 -07:00
Pannag Sanketi
292a31a4c2 Minor fix in SurfaceTexture
Change-Id: Ic859715becf3e6d5107bd8beb8c577034d00ec52
2011-06-30 15:41:19 -07:00
Mathias Agopian
e6786c92d7 Merge "SF transactions are now O(1) wrt IPC instead of O(N)." 2011-06-29 16:15:56 -07:00
Mathias Agopian
698c0873cf SF transactions are now O(1) wrt IPC instead of O(N).
Change-Id: I57669852cbf6aabae244ea86940a08a5a27ffc43
2011-06-29 15:05:41 -07:00
Jason Simmons
acfc4829e4 Merge "Add a linear transform library to libutils" 2011-06-29 13:48:39 -07:00
Jeff Brown
771e5828e8 Merge "Improve input event consistency invariants." 2011-06-28 20:17:59 -07:00
Jeff Brown
7832080b5a Improve input event consistency invariants.
Fixed some issues where inconsistent streams of events could
be generated by the dispatcher, particularly when switching from
hovering with one device to hovering with another.

Fixed a bug where the touch pad would fail to generate a new
HOVER_MOVE following a tap event.  As a result, the hover event
stream would not resume until the user touched the touch pad
again.

Change-Id: I444dce84641fb12e56a0af84c931520771d6c493
2011-06-28 20:10:40 -07:00
Jason Simmons
c18d4da5e4 Add a linear transform library to libutils
Change-Id: Icdec5a6bebd9d8f24b3f335f8ec8b09a5810a774
2011-06-28 17:43:30 -07:00
Jamie Gennis
dfcff4b4ef SurfaceTexture: add a CPU -> GL sync test.
This change adds a test to verify that proper synchronization is done
when using SurfaceTexture to use CPU generated images as OpenGL ES
textures in 'synchronous mode'.  Synchronous mode is particularly tricky
because SurfaceTexture will allow the buffer that's currently bound to
the GL texture to be dequeued.  We rely on Gralloc's lock function to
block until this buffer is no longer being used by the OpenGL ES.

Change-Id: I1c4e37f3e9d60ab9a0905a90a1f5060fda8e485c
2011-06-28 13:18:07 -07:00
Jamie Gennis
67b4cff399 Merge changes I9fb59763,I8b2c6e00
* changes:
  SurfaceTexture: consume buffers after err checks
  SurfaceTexture: change onFrameAvailable behavior
2011-06-28 12:55:03 -07:00
Andy McFadden
bae6579eb2 Remove native EventRecurrence parser
Switch over to the new parser.

Bug 4575374

Change-Id: If78d8042fb266182900398f7fc464a048c779966
2011-06-28 07:43:27 -07:00
Mathias Agopian
99b49840d3 PermissionCache caches permission checks
This is intended to absorb the cost of the IPC
to the permission controller.
Cached permission checks cost about 3us, while
full blown ones are two orders of magnitude slower.

CAVEAT: PermissionCache can only handle system
permissions safely for now, because the cache is
not purged upon global permission changes.

Change-Id: I8b8a5e71e191e3c01e8f792f253c379190eee62e
2011-06-27 17:42:15 -07:00
Jamie Gennis
50c4efc2a4 SurfaceTexture: consume buffers after err checks
This change moves the point at which queued buffers get consumed to
after any error checks that could cause updateTexImage to fail.  This
way, if updateTexImage returns an error the buffer remains queued.
2011-06-27 15:45:40 -07:00
Jamie Gennis
3d8063b02e SurfaceTexture: change onFrameAvailable behavior
This change alters the conditions under which the onFrameAvailable
callback gets called by the C++ SurfaceTexture class.  The new behavior
is to call the callback whenever a frame gets queued that will be
visible to the buffer consumer.  This means that buffers queued in
synchronous mode always trigger the callback, as those buffers will
remain pending until they are consumed.  Buffers queued in asynchronous
mode will only trigger the callback if there was not previously an
unconsumed buffer pending.

The new behavior means that a consumer should perform a draw operation
exactly once for every onFrameAvailable call that it recieves.  This
change also modifies SurfaceFlinger and the SurfaceTexture JNI to
support of the new behavior.

Change-Id: I8b2c6e00961d3d58b11c6af50b555b6e4c5f5b40
2011-06-27 15:45:39 -07:00
Anu Sundararajan
5728a92e29 MemoryHeapBase: Save and binderize the offset
The offset that is used in the creation of the MemoryHeapBase must be saved, so
that it can be used to recreate the Heap when an IMemory object is passed
across process boundary through the binder.

Change-Id: Ie618fb5c0718e6711f55ed9235616fd801e648dc
Signed-off-by: Anu Sundararajan <sanuradha@ti.com>
Signed-off-by: Iliyan Malchev <malchev@google.com>
2011-06-27 13:48:51 -07:00
Christopher Tate
8408da0556 Merge "Fix settings restore" 2011-06-24 15:15:51 -07:00
Christopher Tate
cd604a1a6e Fix settings restore
Also correct the debug-mode logging of error locations in backup data.
Bug 4914182

Change-Id: Ie7dda0192afa819e42490b7ffd2d3db6f11968f6
2011-06-24 15:06:48 -07:00
Grace Kloba
14a0e58074 Add allowSynchronousMode to SurfaceTexture constructor.
Change-Id: I54f30a3c16bbe6b813f3bcd1d389da5627531304
2011-06-23 21:21:47 -07:00
Glenn Kasten
58e012d1e3 Add Thread::join
This new API will be used by applications that previously used the
lower-level pthread APIs (including pthread_join).  Centralizing on the
Thread class instead of pthread will permit additional functionality to
be added later in only one location.

Change-Id: I8460169ac9c61ac9f85752405ed54c94651058d7
2011-06-23 12:55:29 -07:00
Glenn Kasten
ce63396eff Thread ID zero for androidSetThreadSchedulingGroup
Already implemented by androidSetThreadPriority but not documented

Change-Id: I85302b17092952065f3f3a4214d8d8abdd465dbd
2011-06-22 17:45:30 -07:00
tedbo
1e7fa9e945 Add method to create a ParcelSurfaceTexture from android.view.Surface.
Change-Id: I05e343ab7e327478f60322af9373574b70c148f5
2011-06-22 16:18:09 -07:00
Jamie Gennis
c8c5152b19 SurfaceTexture: make tests use a large framebuffer.
This change makes the SurfaceTexture GL tests use a large (512x512)
framebuffer.  The tests now use glViewport to render to a region of the
framebuffer with a size matching that of the texture being drawn.  The
Npot test pixel checks must be changed because now the rendered region
is the same size as the texture.

Change-Id: Icc41803189c25e33ba1da7d2470720f0a11f3e4b
2011-06-20 15:42:57 -07:00
Jamie Gennis
b36bb97ae3 Merge "SurfaceTexture: fix a NULL ptr dereference." 2011-06-20 15:34:00 -07:00
Jamie Gennis
1c4414091c SurfaceTexture: fix a NULL ptr dereference.
This change adds a NULL check when searching the slot list in
SurfaceTextureClient for the slot corresponding to a buffer being
queued or canceled.

Bug: 4645023
Change-Id: I806cbc1e34da118ea33a83c4f25ce8193ba1c3ad
2011-06-20 14:16:49 -07:00
Jean-Baptiste Queru
75e3e4936b am e3b05d09: Merge "Tweaks for forward-compatibility"
* commit 'e3b05d09163257b888c86f2a560e10c48f4cf029':
  Tweaks for forward-compatibility
2011-06-20 09:05:07 -07:00
Jean-Baptiste Queru
3f3f5af40e Tweaks for forward-compatibility
Change-Id: Iec525edc186e78d5d865f82dd5b1f56263c22e86
2011-06-18 09:42:04 -07:00
Jamie Gennis
28bca1a772 Merge "SurfaceTexture: enable a test that now passes." 2011-06-17 10:45:15 -07:00
Jamie Gennis
4661a50121 Merge "SurfaceTexture: enable a test that is now passing." 2011-06-17 10:45:01 -07:00
Mathias Agopian
e397ce2880 am 0887b8c2: am 8e18668d: revert surfaceflinger leak fix as it uncovered a crasher on xoom (DO NOT MERGE)
* commit '0887b8c2e583e682cd2c1bc909cb3fdbec704004':
  revert surfaceflinger leak fix as it uncovered a crasher on xoom (DO NOT MERGE)
2011-06-15 22:42:52 -07:00
Mathias Agopian
dbe60ddd85 am d5244e0a: am 52a43990: Revert "revert surfaceflinger leak fix as it uncovered a crasher on xoom"
* commit 'd5244e0a88ed2f843651aa5ffdc71a45c968e0f3':
  Revert "revert surfaceflinger leak fix as it uncovered a crasher on xoom"
2011-06-15 22:12:32 -07:00
Kenny Root
111280a8de Use rand() for MinGW
The version of MinGW we use doesn't have nrand48() which is really lame,
but we need to use libutils in the Windows SDK.

Change-Id: If854c03dbf02bc29e79f49e4539f08c2bf057517
2011-06-15 20:55:49 -07:00
Mathias Agopian
1b2c2a9ea0 revert surfaceflinger leak fix as it uncovered a crasher on xoom (DO NOT MERGE)
This reverts commit 52a43990880b27808bcf562afcc4209d34728e6e.

Change-Id: I1856a48f863b051395b8091ddfd1e01292fa1b1e
2011-06-15 20:45:32 -07:00
Mathias Agopian
63ad28fb53 Revert "revert surfaceflinger leak fix as it uncovered a crasher on xoom"
This reverts commit af6edba59e250adbdfa5b3c3be134f70d8c38a16.

Change-Id: I7793d3ca8a4d20a2b188364f47854328ab5f586d
2011-06-15 20:42:25 -07:00
Mathias Agopian
e776586a08 am 7ecdeb6e: am d20d72d1: Merge "revert surfaceflinger leak fix as it uncovered a crasher on xoom" into honeycomb-mr2
* commit '7ecdeb6e548ff71d4f70b343e30136e89eaa3e33':
  revert surfaceflinger leak fix as it uncovered a crasher on xoom
2011-06-15 20:21:31 -07:00
Mathias Agopian
3790e7997a revert surfaceflinger leak fix as it uncovered a crasher on xoom
Bug: 4600244
Change-Id: Ia68ebf0f243a051ff6a21b3863e3e5d259bbf7ac
2011-06-15 19:31:04 -07:00
Mathias Agopian
35cc0fcd51 am afffa8fa: fix RefBase so it retains binary-compatibility with gingerbread (DO NOT MERGE)
* commit 'afffa8fa9f82a7343e1158bf921931fd3e3df615':
  fix RefBase so it retains binary-compatibility with gingerbread (DO NOT MERGE)
2011-06-15 14:13:04 -07:00
Jamie Gennis
07ed1a94bc SurfaceTexture: enable a test that now passes.
This change enables the QueryFormatAfterSettingWorks.

Change-Id: Ic868011a36a6c86c8646880246cd5b6960a13364
2011-06-15 12:44:01 -07:00
Jamie Gennis
d05bb2ed4c SurfaceTexture: enable a test that is now passing.
This change enables the TexturingFromCpuFilledYV12BufferPow2 test.

Change-Id: Ib356ee3d2f8979f34f849fd4090f598295e2e92e
2011-06-15 12:44:01 -07:00
Glenn Kasten
982a69f827 Merge "Bug 4608375" 2011-06-14 17:54:25 -07:00
Jamie Gennis
5dd0c4fd7e SurfaceTexture: increase the test's Surface layer.
This change increases the Surface layer used for displaying the test
results so that the tests will be visible over other windows in the
system.

Change-Id: I47f147f8743ff2a39d57d551811668371202bd31
2011-06-14 13:45:53 -07:00
Jamie Gennis
1876d13e45 SurfaceTexture: add some RGBA_8888 tests.
Change-Id: Id09915c98a00eca1209b7dab32039a06d260908e
2011-06-14 13:45:53 -07:00
Jamie Gennis
8b69defa2f SurfaceTextureClient: minor test refactoring.
Change-Id: Iabc6d27ca35d30d896c6aef65c4f1b5a1eed47b8
2011-06-14 13:45:52 -07:00
Jamie Gennis
135abde4c2 Merge "SurfaceTexture: add a format querying test." 2011-06-14 13:39:05 -07:00
Glenn Kasten
f0c412513f Bug 4608375
Update priority and policy together for audio threads

Change-Id: Ib3b07b32586c222c4aacbf23414ae8b05db502be
2011-06-14 10:41:50 -07:00
Mathias Agopian
ddc31c3e2b fix RefBase so it retains binary-compatibility with gingerbread
Bug: 4595257
Change-Id: I0d5e10f497e3f39868bff58f6ded510c38b44b12
2011-06-13 18:39:45 -07:00
Mathias Agopian
80728d87c9 Merge changes I9b8e1962,I7bb843ca
* changes:
  Temporarily don't return the current buffer in synchronous mode
  unify SurfaceTexture and Surface
2011-06-13 17:20:53 -07:00
Mathias Agopian
e122079be6 Temporarily don't return the current buffer in synchronous mode
activate synchronous mode by default.
2011-06-13 15:51:35 -07:00
Mathias Agopian
a67932fe68 unify SurfaceTexture and Surface
Add the concept of synchronous dequeueBuffer in SurfaceTexture
Implement {Surface|SurfaceTextureClient}::setSwapInterval()
Add SurfaceTexture logging
fix onFrameAvailable
2011-06-13 15:51:35 -07:00
Jamie Gennis
a6f35dd36e SurfaceTexture: add a format querying test.
This change adds a test to verify that querying the format of a
SurfaceTextureClient immediately after setting it returns the correct
result.  The test is currently disabled because it does not pass.

Change-Id: I5bddb39c5bf96d6104624094383d410ed913e9f3
2011-06-13 15:01:05 -07:00
Jamie Gennis
9fbf761e44 Merge changes Ic9186db2,Id5a7cdff
* changes:
  SurfaceTexture: disable a deadlocking test.
  SurfaceTexture: add a pixel tolerance to the tests.
2011-06-13 14:48:11 -07:00
Mathias Agopian
7794b30589 am 77079399: am a9c9a4ba: fix RefBase so it retains binary-compatibility with gingerbread (DO NOT MERGE)
* commit '77079399fca3e9c71e2ac06f3da26934e1c278b9':
  fix RefBase so it retains binary-compatibility with gingerbread (DO NOT MERGE)
2011-06-13 14:15:00 -07:00
Mathias Agopian
76feee7a58 fix RefBase so it retains binary-compatibility with gingerbread (DO NOT MERGE)
Bug: 4595257
Change-Id: I4773cf4fe59b2509db0ed733739eb6961d473b25
2011-06-13 13:58:34 -07:00
Mathias Agopian
867740df05 fix RefBase so it retains binary-compatibility with gingerbread (DO NOT MERGE)
Bug: 4595257
Change-Id: I1db83149107d7dab1f0b7e73c684e0ff82e17e62
2011-06-13 13:44:28 -07:00
Jamie Gennis
2510d9576f SurfaceTexture: disable a deadlocking test.
This change disables the UpdateTexImageAfterFrameFinishedWorks test
because it's currently causing deadlocks on some devices.

Change-Id: Ic9186db207e8d656f3af5d86fa138c7d96393c55
2011-06-13 13:43:51 -07:00
Jamie Gennis
824efa74e7 SurfaceTexture: add a pixel tolerance to the tests.
This change adds a default tolerance of 2 to all the pixel value checks
in the SurfaceTexture tests.

Change-Id: Id5a7cdffdfae16076e2daf4964a3326105b5ae2c
2011-06-13 13:41:01 -07:00
Jamie Gennis
ac642349ba Merge "libutils: add a binary blob cache implementation." 2011-06-13 12:32:46 -07:00
Jamie Gennis
72f6af8630 Merge changes I56779420,I044e44e1,Ic5adfa29,Ied541ab8
* changes:
  SurfaceTexture: add some GL->GL tests.
  SurfaceTexture: fix up a comment.
  SurfaceTexture: add getTransformMatrix tests.
  SurfaceTexture: fix a getTransformMatrix crash.
2011-06-13 11:14:57 -07:00
Jamie Gennis
5451d15ee2 SurfaceTexture: add some GL->GL tests.
This change adds some tests to verify streaming images from one GL
thread to another via SurfaceTexture.  Currently the tests do not
validate the correctness of the streamed images, but rather simply
verify that this streaming does not cause a deadlock.  3 of the 4 tests
are currently disabled because they do cause deadlocks on some devices.

Change-Id: I5677942053190063b97f370dba96c116711bc3bb
2011-06-13 10:50:13 -07:00
Jamie Gennis
5222604809 SurfaceTexture: add getTransformMatrix tests.
This change adds a test verifying that with no transform set on the
SurfaceTextureClient, the SurfaceTexture will return an identity
transform matrix.  It also verifies this same effect in the presence of
an additional call to native_window_set_buffer_count just before the
call to getTransformMatrix.

Bug: 4490420
Change-Id: Ic5adfa29b5696cc2b451433834e3758ef20c5edd
2011-06-13 10:50:13 -07:00
Jamie Gennis
736aa9573b SurfaceTexture: fix a getTransformMatrix crash.
This change moves the computation of the transform matrix out of
getTransformMatrix and instead performs the computation when
updateTexImage gets called.  This is needed in order for
getTransformMatrix to succeed even if the buffers have been freed (e.g.
by changing the buffer count) because the computation depends upon the
properties of the current GraphicBuffer.

Change-Id: Ied541ab8747b7ad604f862717135f9a16a816be9
Bug: 4490420
2011-06-13 10:50:12 -07:00
Glenn Kasten
c4a0feaaf4 Merge "Remove redundant memory barrier" 2011-06-13 10:30:29 -07:00
Glenn Kasten
d9e1bb76fe Remove redundant memory barrier
pthread_create already includes the necessary memory barriers:
 - parent at pthread_create : pthread_mutex_unlock(start_mutex)
 - child at __thread_entry : pthread_mutex_lock(start_mutex)

Add lock around uses of mThread.

Added comments:
 - uses of mThread require lock
 - androidCreateRawThreadEtc returned ID is not safe for direct use from non-parent threads.

Change-Id: I18cb296b41ddaf64cf127b57aab31154319b5970
2011-06-10 17:07:46 -07:00
Dianne Hackborn
66168d4bb4 resolved conflicts for merge of f51ded0f to master
Change-Id: Ida356524a68aeb2b9b0013dfbb6ab4bd11e616e2
2011-06-10 12:45:36 -07:00
Dianne Hackborn
5ea8834ab9 resolved conflicts for merge of e2aa0490 to master
Change-Id: Id0448a1598fc93aca0652b29253e02586e35a067
2011-06-09 17:50:36 -07:00
Dianne Hackborn
199512446d am a8d7ea06: am 220cd77d: Merge "Enforce public resource restriction on bag parents." into honeycomb-mr2
* commit 'a8d7ea067cf22baeee2ff0a33e5a8c5a35936942':
  Enforce public resource restriction on bag parents.
2011-06-09 16:06:07 -07:00
Dianne Hackborn
d4bfc93113 Enforce public resource restriction on bag parents.
Need to put some more styles in the SDK to avoid breaking apps.

Also, welcome Android 3.2.

Change-Id: Ia31d07c9b1b91ad868d8630437fdc1b5ae24f37d
2011-06-09 15:27:39 -07:00
Mathias Agopian
a1bb021469 am 96fcb702: am b40e85f9: am 645434fb: Merge "Fix a leak in RefBase" into honeycomb-mr2
* commit '96fcb702d75dcfb36c3ebd8fe420c8b29fa67fb7':
  Fix a leak in RefBase
2011-06-09 13:54:54 -07:00
Christopher Tate
a87feb9339 Merge "Fix handling of directory entries" 2011-06-08 20:13:57 -07:00
Christopher Tate
61334a3f83 Fix handling of directory entries
Don't emit tar blocks for directories with an invalid nonzero size.  Also, if
such an entry is encountered during restore, don't actually attempt to treat
it as valid and thus skip over the next actual tar entry.

This patch also adds tracking of the data actually consumed during restore,
and reports a total at the end of stream.

Change-Id: I625173f76df3c007e899209101ff2b587841f184
2011-06-08 20:11:49 -07:00
Dianne Hackborn
b0cc4a8083 am a1396dfe: am 02140891: Merge "Work on issue #4518815: Compatibility mode introduces compatibility regression..." into honeycomb-mr2
* commit 'a1396dfe7ad6ec6953f544be42d69d7804ab0fd4':
  Work on issue #4518815: Compatibility mode introduces compatibility regression...
2011-06-08 20:06:40 -07:00
Dianne Hackborn
ab6bf752b3 Merge "Work on issue #4518815: Compatibility mode introduces compatibility regression..." into honeycomb-mr2 2011-06-08 20:00:50 -07:00
Mathias Agopian
ef1e16fc0b am 19974ecc: Fix a leak in RefBase (DO NOT MERGE)
* commit '19974eccdbd3e4dbd7e3b2cc401db7806d4a17bc':
  Fix a leak in RefBase (DO NOT MERGE)
2011-06-08 19:56:06 -07:00
Mathias Agopian
c2db91c3bf am b40e85f9: am 645434fb: Merge "Fix a leak in RefBase" into honeycomb-mr2
* commit 'b40e85f90146a654bfe5657187be491147814ea0':
  Fix a leak in RefBase
2011-06-08 19:34:30 -07:00
Dianne Hackborn
acf87675ae Work on issue #4518815: Compatibility mode introduces compatibility regression...
...for Market App iRunner

There were a lot of serious issues with how we updated (or often didn't update)
the display and resource state when switching compatibility mode in conjunction
with restarting and updating application components.  This addresses everything
I could find.

Unfortunately it does *not* fix this particular app.  I am starting to think this
is just an issue in the app.  This change does fix a number of other problems
I could repro, such as switching the compatibility mode of an IME.

Also a few changes here and there to get rid of $#*&^!! debug logs.

Change-Id: Ib15572eac9ec93b4b9966ddcbbc830ce9dec1317
2011-06-08 18:45:43 -07:00
Mathias Agopian
3b0a7a739e Fix a leak in RefBase
this bug was introduced recently. it caused RefBase's weakref_impl
structure to be leaked for every RefBase object (about 20 bytes).

Change-Id: Id85e749ba04521199555dd701198edd097c313d4
2011-06-08 16:25:01 -07:00
Mathias Agopian
9a03cecf8b Fix a leak in RefBase (DO NOT MERGE)
this bug was introduced recently. it caused RefBase's weakref_impl
structure to be leaked for every RefBase object (about 20 bytes).

Change-Id: Ia9b155fbfa643ef72cfb8129e96260a3b806a78c
2011-06-08 16:13:39 -07:00
Jeff Brown
5d99f17e82 am 61220e88: am bbbab26e: am 2c180499: Merge "Revert velocity damping. Bug: 4364920" into honeycomb-mr2
* commit '61220e880ac4d9d76b7fd50744439e68e929c697':
  Revert velocity damping. Bug: 4364920
2011-06-07 17:52:30 -07:00
Christopher Tate
9f7bcda136 Fix embedded spaces in tar stream EVEN HARDER
Change-Id: I97ac586ff3541a05d73e1e53f680517c15e6c662
2011-06-07 13:17:17 -07:00
Christopher Tate
72a404d102 Implement shared-storage full backup/restore
Every available shared-storage volume is backed up, tagged with its
ordinal in the set of mounted shared volumes.  This is an approximation
of "internal + the external card".  This lets us restore things to the
same volume [or "equivalent" volume, in the case of a cross-model
restore] as they originated on.

Also fixed a bug in the handling of files/dirs with spaces in
their names.

Change-Id: I380019da8d0bb5b3699bd7c11eeff621a88e78c3
2011-06-07 12:16:27 -07:00
Jeff Brown
b7edd04f7a am bbbab26e: am 2c180499: Merge "Revert velocity damping. Bug: 4364920" into honeycomb-mr2
* commit 'bbbab26ebe9bc789ba9abac757895a6c31de7cc5':
  Revert velocity damping. Bug: 4364920
2011-06-06 20:36:49 -07:00
Jeff Brown
1d3a7130f9 Merge "Revert velocity damping. Bug: 4364920" into honeycomb-mr2 2011-06-06 20:32:18 -07:00
Jeff Brown
7ca7ba2064 Revert velocity damping.
Bug: 4364920

Velocity damping proved to be a bad idea because it would
cause a significant ramp in velocity at the beginning of
a gesture, instead of the desired smooth behavior.  Oh well.

Change-Id: Ie631946f47ef2492bd71fbed1ab44bbb39a875a8
2011-06-06 20:23:54 -07:00
Mathias Agopian
f3d939c5e5 merge various SF fixes from gingerbread to honeycomb-mr2 (DO NOT MERGE)
Fix a race that could cause GL commands to be executed from the wrong thread.
  RefBase subclasses can now decide how they want to be destroyed.
  Fix a race in SurfaceFlinger that could cause layers to be leaked forever.
  Fix a race-condtion in SurfaceFlinger that could lead to a crash.

initial cherry-pick:
resolved conflicts for merge of b9783b49 to honeycomb-plus-aosp

Change-Id: I2a335e03fff219e35c18a7b0089b3a11d636576f
2011-06-06 15:14:25 -07:00
Marco Nelissen
0129f1a27f resolved conflicts for merge of b9783b49 to honeycomb-plus-aosp
Change-Id: I1d86ea56b3d1d1b69f6671e5b0df0ca3f0c79643
2011-06-06 09:55:15 -07:00
Jeff Brown
36f49c133e am 56503b8d: am 8186a5f0: am 10c3f367: Merge "Implement pointer acceleration." into honeycomb-mr2
* commit '56503b8ddfe5c82407da32e18061e725f668432d':
  Implement pointer acceleration.
2011-06-03 15:30:33 -07:00
Jeff Brown
576768ca0d am 8186a5f0: am 10c3f367: Merge "Implement pointer acceleration." into honeycomb-mr2
* commit '8186a5f065fac2b82c90cd18d79cd234bc221402':
  Implement pointer acceleration.
2011-06-02 17:33:55 -07:00
Jeff Brown
adab620383 Implement pointer acceleration.
Bug: 4124987
Change-Id: I1f31a28f1594c55302ccabe13fe3ca6d2ff71d50
2011-06-02 14:12:05 -07:00
Christopher Tate
15e113033b Restore from a previous full backup's tarfile
Usage:  adb restore [tarfilename]

Restores app data [and installs the apps if necessary from the backup
file] captured in a previous invocation of 'adb backup'.  The user
must explicitly acknowledge the action on-device before it is allowed
to proceed; this prevents any "invisible" pushes of content from the
host to the device.

Known issues:

* The settings databases and wallpaper are saved/restored, but lots
  of other system state is not yet captured in the full backup.  This
  means that for practical purposes this is usable for 3rd party
  apps at present but not for full-system cloning/imaging.

Change-Id: I0c748b645845e7c9178e30bf142857861a64efd3
2011-06-01 15:09:55 -07:00
Mathias Agopian
b62013f6aa 9-axis sensor fusion with Kalman filter
Add support for 9-axis gravity and linear-acceleration sensors
virtual orientation sensor using 9-axis fusion

Change-Id: I6717539373fce781c10e97b6fa59f68a831a592f
2011-05-27 17:04:55 -07:00
Jeff Brown
98d1f99704 am 8148cc3e: am 86ea1f5f: Initial checkin of spot presentation for touchpad gestures. (DO NOT MERGE)
* commit '8148cc3e47e50c916066e2fed562618b5827188f':
  Initial checkin of spot presentation for touchpad gestures. (DO NOT MERGE)
2011-05-25 14:46:53 -07:00
Jeff Brown
974a08d53e am d5358874: am 5ced76a1: Coalesce input events that arrive faster than 333Hz. (DO NOT MERGE)
* commit 'd5358874e2cc90be3d7d3370ef7342c96c212451':
  Coalesce input events that arrive faster than 333Hz. (DO NOT MERGE)
2011-05-25 14:46:37 -07:00
Jeff Brown
9a2c1ca2dd am af685f3b: am 85a7f99c: Merge "Refactor how timeouts are calculated. (DO NOT MERGE)" into honeycomb-mr2
* commit 'af685f3bb566f297deee1615d55d4f33d5580ba3':
  Refactor how timeouts are calculated. (DO NOT MERGE)
2011-05-25 14:42:20 -07:00
Jeff Brown
689e53cc82 am 16330e24: am 94e838f6: Merge "Improve VelocityTracker numerical stability. (DO NOT MERGE)" into honeycomb-mr2
* commit '16330e249663fed890df0e95fce4016c2971120a':
  Improve VelocityTracker numerical stability. (DO NOT MERGE)
2011-05-25 14:42:06 -07:00
Jeff Brown
446b400910 am 4bd89fb0: am 82e4373e: Merge "Use touch pad gestures to manipulate the pointer. (DO NOT MERGE)" into honeycomb-mr2
* commit '4bd89fb00f319c5d6d4f17b39fd4c0b3dc827ad1':
  Use touch pad gestures to manipulate the pointer. (DO NOT MERGE)
2011-05-25 14:42:01 -07:00
Jeff Brown
d3e6d3e763 Initial checkin of spot presentation for touchpad gestures. (DO NOT MERGE)
Added a new PointerIcon API (hidden for now) for loading
pointer icons.

Fixed a starvation problem in the native Looper's sendMessage
implementation which caused new messages to be posted ahead
of old messages sent with sendMessageDelayed.

Redesigned the touch pad gestures to be defined in terms of
more fluid finger / spot movements.  The objective is to reinforce
the natural mapping between fingers and spots which means there
must not be any discontinuities in spot motion relative to
the fingers.

Removed the SpotController stub and folded its responsibilities
into PointerController.

Change-Id: Ib647dbd7a57a7f30dd9c6e2c260df51d7bbdd18e
2011-05-25 14:37:17 -07:00
Jeff Brown
fa785531f7 Coalesce input events that arrive faster than 333Hz. (DO NOT MERGE)
Some drivers report individual finger updates one at a time
instead of all at once.  When 10 fingers are down, this can
cause the framework to have to handle 10 times as many events
each with 10 times as much data.  Applications like
PointerLocation would get significantly bogged down by all
of the redundant samples.

This change coalesces samples that are closely spaced in time,
before they are dispatched, as part of the motion event batching
protocol.

Increased the size of the InputChannel shared memory buffer so
that applications can catch up faster if they accumulate a
backlog of samples.

Change-Id: Ibc6abf8af027d9003011ac75caa12941080caba3
2011-05-25 14:37:16 -07:00
Jamie Gennis
8dda6b7bf8 SurfaceTexture: disable a failing test.
The SurfaceTextureSyncModeWaitRetire test was disabled.  It is failing
because of the synchronization hacks that were added to SurfaceTexture
to work around bugs in vendor device drivers.

Change-Id: I09a74538bfe14a04833acb6847471e00826cc7fc
2011-05-25 12:27:33 -07:00
Jamie Gennis
c2c8dfd71b SurfaceTexture: fix an error check in dequeueBuffer.
This change fixes the MIN_UNDEQUEUED_BUFFERS error check in
dequeueBuffer.  The check should only be performed if a buffer has been
queued since the last time the buffer count was changed by the client.
The check must be applied conditionally because video decoders require
all the bufferes to be dequeued and registered before beginning the
decode.

Change-Id: I08d96b380544e395c2fcf0f3983a199bfd695b09
2011-05-25 12:27:33 -07:00
Jamie Gennis
8cd5ba4b7f SurfaceTexture: clean up some comments, tests, etc.
This change fixes up some stale comments, member variable names, log
messages and disables a failing test.

Change-Id: Ic1d3344b18066cf710e4a42838b2417c6b1f2f6c
2011-05-25 12:27:33 -07:00
Simon Wilson
be93983384 am c9cd2387: Merge changes I37f0f315,I8cbf6044,Ibb598931,I5262bf11 into gingerbread
* commit 'c9cd2387b6938a6fbefc731d2177902266f2a130':
  Fix a race that could cause GL commands to be executed from the wrong thread.
  RefBase subclasses can now decide how they want to be destroyed.
  Fix a race in SurfaceFlinger that could cause layers to be leaked forever.
  Fix a race-condtion in SurfaceFlinger that could lead to a crash.
2011-05-24 17:29:12 -07:00
Jeff Brown
1eb42cf6db Refactor how timeouts are calculated. (DO NOT MERGE)
Added a timeout mechanism to EventHub and InputReader so that
InputMappers can request timeouts to perform delayed processing of
input when needed.

Change-Id: I89c1171c9326c6e413042e3ee13aa9f7f1fc0454
2011-05-23 17:20:42 -07:00
Jeff Brown
c5982b7bee Improve VelocityTracker numerical stability. (DO NOT MERGE)
Replaced VelocityTracker with a faster and more accurate
native implementation.  This avoids the duplicate maintenance
overhead of having two implementations.

The new algorithm requires that the sample duration be at least
10ms in order to contribute to the velocity calculation.  This
ensures that the velocity is not severely overestimated when
samples arrive in bursts.

The new algorithm computes the exponentially weighted moving
average using weights based on the relative duration of successive
sample periods.

The new algorithm is also more careful about how it handles
individual pointers going down or up and their effects on the
collected movement traces.  The intent is to preserve the last
known velocity of pointers as they go up while also ensuring
that other motion samples do not count twice in that case.

Bug: 4086785
Change-Id: I95054102397c4b6a9076dc6a0fc841b4beec7920
2011-05-23 17:19:59 -07:00
Jeff Brown
247da72a5b Use touch pad gestures to manipulate the pointer. (DO NOT MERGE)
1. Single finger tap performs a click.
2. Single finger movement moves the pointer (hovers).
3. Button press plus movement performs click or drag.
   While dragging, the pointer follows the finger that is moving
   fastest.  This is important if there are additional fingers
   down on the touch pad for the purpose of applying force
   to an integrated button underneath.
4. Two fingers near each other moving in the same direction
   are coalesced as a swipe gesture under the pointer.
5. Two or more fingers moving in arbitrary directions are
   transformed into touches in the vicinity of the pointer.
   This makes scale/zoom and rotate gestures possible.

Added a native VelocityTracker implementation to enable intelligent
switching of the active pointer during drags.

Change-Id: I7b7ddacc724fb1306e1590dbaebb740d3130d7cd
2011-05-23 17:19:38 -07:00
Mathias Agopian
3d6881f394 RefBase subclasses can now decide how they want to be destroyed.
This adds a destroy() virtual on RefBase which
sublasses can implement. destroy() is called
in lieu of the destructor whenthe last strong
ref goes away.

Bug: 4483050
Change-Id: I8cbf6044a6fd3f01043a45592b5a60fa1e5fade2
2011-05-23 16:13:48 -07:00
Mathias Agopian
d31099f021 Merge "Call RefBase::destroy() when OBJECT_LIFETIME_* is not the default" 2011-05-20 13:15:20 -07:00
Dianne Hackborn
79ba9b5e39 resolved conflicts for merge of 06a8ceac to master
Change-Id: Id51574c825affddfac14ad7214c5496d6a3d6e69
2011-05-19 21:44:52 -07:00
Mathias Agopian
8561698c9b Call RefBase::destroy() when OBJECT_LIFETIME_* is not the default
Change-Id: Ifb2069e095dba57b7d97e9f2d942fd85fa975f58
2011-05-19 21:01:04 -07:00
Mathias Agopian
0eda070fda Merge "RefBase subclasses can now decide how they want to be destroyed." 2011-05-19 19:41:37 -07:00
Mathias Agopian
20aeb1caa4 RefBase subclasses can now decide how they want to be destroyed.
This adds a destroy() virtual on RefBase which
sublasses can implement. destroy() is called
in lieu of the destructor whenthe last strong
ref goes away.
2011-05-19 19:40:01 -07:00
Dianne Hackborn
7583282db6 am c851ea56: am 69cb8757: Add new "-swNNNdp" resource qualifier.
* commit 'c851ea5672f6e042c2e89b2a2ce4a2467e1fcd2a':
  Add new "-swNNNdp" resource qualifier.
2011-05-19 19:34:21 -07:00
Dianne Hackborn
22585947ff Add new "-swNNNdp" resource qualifier.
Change-Id: I0101e88ca9d8d44138bdcaf571f24b0352f4f6ce
2011-05-19 18:23:29 -07:00
MÃ¥rten Kongstad
963664b6b7 Continue idmap generation even if name lookup fails.
In resources.arsc files, a resource is represented by a specification
block and one or more value blocks. In rare cases, a resource name
is also given a new resource ID, a specification block and no values
blocks. This commit ensures idmap generation does not fail if such an
entry is encountered.

Change-Id: I32302a0b07a7a320b7eeb31886931be3bb7b7e9a
2011-05-19 16:02:35 +02:00
Mathias Agopian
b27aabc09d Merge "Disable error report temporarily to enable inline video" 2011-05-18 14:43:53 -07:00
Teng-Hui Zhu
d7e291fecd Disable error report temporarily to enable inline video
bug:4435022

Change-Id: I06f05a4781ad432ab71db93f0815eb89cd2e7a69
2011-05-18 14:37:51 -07:00
Jamie Gennis
58c8dd2aa9 libutils: add a binary blob cache implementation.
This change adds an implementation of a cache that stores key/value
pairs of unstructured binary blobs.

Change-Id: Idd01fdabedfa3aed6d359a6efb0592967af52651
2011-05-17 16:58:37 -07:00
Christopher Tate
21a357e114 Merge "Full backup tweaks" 2011-05-13 15:41:32 -07:00
Christopher Tate
b41c5a5ae7 Full backup tweaks
* provide placeholder UI showing backup/restore start/stop/timeout
* don't kill the progress UI in mid stream
* tidy up the pax extended header data writing a little

Change-Id: Ife0cb78e3facb541d8327f1d5ca5fe77faa6cbca
2011-05-13 15:38:02 -07:00
Jeff Brown
282cdfb6f4 Merge "Add initial API for stylus and mouse buttons." 2011-05-13 12:14:27 -07:00
Jeff Brown
e959ed2533 Add initial API for stylus and mouse buttons.
Added the concept of pointer properties in a MotionEvent.
This is currently used to track the pointer tool type to enable
applications to distinguish finger touches from a stylus.

Button states are also reported to application as part of touch events.

There are no new actions for detecting changes in button states.
The application should instead query the button state from the
MotionEvent and take appropriate action as needed.

A good time to check the button state is on ACTION_DOWN.

As a side-effect, applications that do not support multiple buttons
will treat primary, secondary and tertiary buttons identically
for all touch events.

The back button on the mouse is mapped to KEYCODE_BACK
and the forward button is mapped to KEYCODE_FORWARD.

Added basic plumbing for the secondary mouse button to invoke
the context menu, particularly in lists.

Added clamp and split methods on MotionEvent to take care of
common filtering operations so we don't have them scattered
in multiple places across the framework.

Bug: 4260011
Change-Id: Ie992b4d4e00c8f2e76b961da0a902145b27f6d83
2011-05-13 12:11:17 -07:00
Dianne Hackborn
89178d4de2 am 46a282f3: am 0ed2e845: Merge "DO NOT MERGE. Integrate add new screen width/height in "dp" configs." into honeycomb-mr2
* commit '46a282f323bc05606e4fe1eba795bd9ac7c99819':
  DO NOT MERGE.  Integrate add new screen width/height in "dp" configs.
2011-05-13 11:21:26 -07:00
Dianne Hackborn
88c0d696cc DO NOT MERGE. Integrate add new screen width/height in "dp" configs.
You can now specify resource configuration variants "wNNNdp"
and "hNNNdp".  These are the minimum screen width/height in "dp"
units.  This allows you to do things like have your app adjust
its layout based only on the about of horizontal space available.

This introduces a new configuration change flag for screen size.
Note that this configuration change happens each time the orientation
changes.  Applications often say they handle the orientation change
to avoid being restarted at a screen rotation, and this will now
cause them to be restarted.  To address this, we assume the app can
handle this new config change if its target SDK version is < ICS.

Change-Id: I4acb73d82677b74092c1da9e4046a4951921f9f4
2011-05-12 18:39:51 -07:00
Christopher Tate
ffd242ed55 Use pax extended tar format to support long filenames etc.
'tar' supports only 100-character paths; 'ustar' supports only
155+100 character prefix + paths; neither supports files larger
than about 8 gigabytes.  We now use the POSIX.1-2001 'pax'
extended tar format for those files in the backup stream that
are too large or have too-long paths for the 'ustar' format.

Change-Id: I2f256823091deaec9b1ccea685d2344753c6cb67
2011-05-12 18:07:57 -07:00
Mathias Agopian
cf46eb9817 fix onFrameAvailable
Change-Id: I391fe9f6684ac9fd4f91416ce18b583f7087d966
2011-05-11 18:01:51 -07:00
Mathias Agopian
68c7794183 Add SurfaceTexture logging
Change-Id: If1b74be5230813fb76429935d88b9d4a7c41700c
2011-05-11 18:01:51 -07:00
Mathias Agopian
8072711307 Implement {Surface|SurfaceTextureClient}::setSwapInterval()
Change-Id: I8382e346ddaa2c4c8ff56ac3ffd7f0109572f188
2011-05-11 18:01:51 -07:00
Mathias Agopian
7a5b22c4e3 new tests for SurfaceTexture synchronous mode
Change-Id: Icfdaa625238246f8d0224efe28fdf2c1c24203f8
2011-05-11 18:01:51 -07:00
Mathias Agopian
b3e518c820 Add the concept of synchronous dequeueBuffer in SurfaceTexture
Change-Id: Ic94cbab092953243a0746e04bbe1b2eb0cc930ef
2011-05-11 18:01:51 -07:00
Mathias Agopian
eafabcdc16 unify SurfaceTexture and Surface
Change-Id: I49da2f5d8408e4cd7e148cfb777bb4ff68cd8f37
2011-05-11 18:01:51 -07:00
Mathias Agopian
c04f153353 Fix a bug where setgeometry couldn't be undone
This change the binder protocol between SurfaceTextureClient
and SurfaceTexture. dequeueBuffer() now takes the requested
parameters for the buffer. SurfaceTexture decides if the
buffer needs to be reallocated and does the allocation
if needed. In that case it returns BUFFER_NEEDS_REALLOCATION
to tell SurfaceTextureClient that it needs to call
requestBuffer (which all parameters have been removed) to
acquire a pointer to the buffer.

dequeueBuffer and requestBuffer could be folded into a single
IPC call, but we chose to optimize the case where buffers are
not created and avoid some complexity in the marshalling code.

Change-Id: I097a7f6f40a3491e10f3f3742eab33999286c304
2011-05-11 18:01:51 -07:00
Conley Owens
25bc410b31 am 041aa34e: am 87d86044: am bcd029b6: Merge "Add missing clean-up of idmap file descriptors."
* commit '041aa34e089d7b194a5d93c682c3af3d3116d3f3':
  Add missing clean-up of idmap file descriptors.
2011-05-11 13:10:56 -07:00
Christopher Tate
d78797f6e6 Full local backup infrastructure
This is the basic infrastructure for pulling a full(*) backup of the
device's data over an adb(**) connection to the local device.  The
basic process consists of these interacting pieces:

1. The framework's BackupManagerService, which coordinates the
   collection of app data and routing to the destination.

2. A new framework-provided BackupAgent implementation called
   FullBackupAgent, which is instantiated in the target applications'
   processes in turn, and knows how to emit a datastream that contains
   all of the app's saved data files.

3. A new shell-level program called "bu" that is used to bridge from
   adb to the framework's Backup Manager.

4. adb itself, which now knows how to use 'bu' to kick off a backup
   operation and pull the resulting data stream to the desktop host.

5. A system-provided application that verifies with the user that
   an attempted backup/restore operation is in fact expected and to
   be allowed.

The full agent implementation is not used during normal operation of
the delta-based app-customized remote backup process.  Instead it's
used during user-confirmed *full* backup of applications and all their
data to a local destination, e.g. via the adb connection.

The output format is 'tar'.  This makes it very easy for the end
user to examine the resulting dataset, e.g. for purpose of extracting
files for debug purposes; as well as making it easy to contemplate
adding things like a direct gzip stage to the data pipeline during
backup/restore.  It also makes it convenient to construct and maintain
synthetic backup datasets for testing purposes.

Within the tar format, certain artificial conventions are used.
All files are stored within top-level directories according to
their semantic origin:

apps/pkgname/a/  : Application .apk file itself
apps/pkgname/obb/: The application's associated .obb containers
apps/pkgname/f/  : The subtree rooted at the getFilesDir() location
apps/pkgname/db/ : The subtree rooted at the getDatabasePath() parent
apps/pkgname/sp/ : The subtree rooted at the getSharedPrefsFile() parent
apps/pkgname/r/  : Files stored relative to the root of the app's file tree
apps/pkgname/c/  : Reserved for the app's getCacheDir() tree; not stored.

For each package, the first entry in the tar stream is a file called
"_manifest", nominally rooted at apps/pkgname.  This file contains some
metadata about the package whose data is stored in the archive.

The contents of shared storage can optionally be included in the tar
stream. It is placed in the synthetic location:

shared/...

uid/gid are ignored; app uids are assigned at install time, and the
app's data is handled from within its own execution environment, so
will automatically have the app's correct uid.

Forward-locked .apk files are never backed up.  System-partition
.apk files are not backed up unless they have been overridden by a
post-factory upgrade, in which case the current .apk *is* backed up --
i.e. the .apk that matches the on-disk data.  The manifest preceding
each application's portion of the tar stream provides version numbers
and signature blocks for version checking, as well as an indication
of whether the restore logic should expect to install the .apk before
extracting the data.

System packages can designate their own full backup agents.  This is
to manage things like the settings provider which (a) cannot be shut
down on the fly in order to do a clean snapshot of their file trees,
and (b) manage data that is not only irrelevant but actively hostile
to non-identical devices -- CDMA telephony settings would seriously
mess up a GSM device if emplaced there blind, for example.

When a full backup or restore is initiated from adb, the system will
present a confirmation UI that the user must explicitly respond to
within a short [~ 30 seconds] timeout.  This is to avoid the
possibility of malicious desktop-side software secretly grabbing a copy
of all the user's data for nefarious purposes.

(*) The backup is not strictly a full mirror.  In particular, the
    settings database is not cloned; it is handled the same way that
    it is in cloud backup/restore.  This is because some settings
    are actively destructive if cloned onto a different (or
    especially a different-model) device: telephony settings and
    AndroidID are good examples of this.

(**) On the framework side it doesn't care that it's adb; it just
    sends the tar stream to a file descriptor.  This can easily be
    retargeted around whatever transport we might decide to use
    in the future.

KNOWN ISSUES:

* the security UI is desperately ugly; no proper designs have yet
  been done for it
* restore is not yet implemented
* shared storage backup is not yet implemented
* symlinks aren't yet handled, though some infrastructure for
  dealing with them has been put in place.

Change-Id: Ia8347611e23b398af36ea22c36dff0a276b1ce91
2011-05-10 17:52:51 -07:00
Conley Owens
74cfbe1239 am 87d86044: am bcd029b6: Merge "Add missing clean-up of idmap file descriptors."
* commit '87d86044c0f15ae2ffc0350271c76ff874fb413b':
  Add missing clean-up of idmap file descriptors.
2011-05-10 16:19:29 -07:00