Now display-specific settings, such as dimensions and orientation,
are stored in display override config. For default display it is
mirroring the global config. Each time when global config is updated,
override of the default display should be updated too and vice versa.
Test: Existing and manual tests still pass.
Change-Id: Ic6c2190092d328820f314a05bed43c875db18170
For N the Camera used ROTATION_ANIMATION_JUMPCUT
which was reinterpreted as seamless rotation if possible.
However this ended up being non ideal in app transition
scenarios where the rotation animation replaces the app
transition. Here we also can't seamlessly rotate, so the
window just suddenly appears with jumpcut. In fact we want
crossfade as a fallback animation and this is what distinguishes
ROTATION_ANIMATION_JUMPCUT and SEAMLESS. The problem was patched
over in N by having double-tap gestures fire camera intents
with a SEAMLESS ActivityOptions.rotationAnimationHint,
but it was too late to un-hide for consumption by apps. While here,
clean up some documentation that doesn't really parse.
Test: Manual, try the RotationAnimation activity in ApiDemos sample.
Bug: 28838855
Bug: 28823590
Change-Id: I17b5e9fa967df8ade0943337cd7b6c3956d3a499
on a per RenderNode basis. With Skia renderer we
see 30% speed improvement in Invalidate Tree UI Jank test,
when SkiaDisplayList objects are reused.
Test: manually built and run on angler-eng.
Change-Id: Ie4ec50ddb2015150e3ec678dde7ebed0c8d90067
All draw* calls in Canvas are regular JNI
All draw* calls in DisplayListCanvas are FastNative
Unifies Canvas JNI on nMethodName naming
CanvasPerf results before:
INSTRUMENTATION_STATUS: basicViewGroupDraw_min=12492
INSTRUMENTATION_STATUS: recordSimpleBitmapView_min=13912
and after:
INSTRUMENTATION_STATUS: basicViewGroupDraw_min=11945
INSTRUMENTATION_STATUS: recordSimpleBitmapView_min=13318
Test: refactor, makes & boots
Change-Id: I06000df1d125e17d60c6498865be7a7638a4a13e
1. Taking into account scroll state
2. Drawing focus also for views with edges.
Bug: 32099818
Test: Manually ensure that that button draws focus
Change-Id: I085db4deb1561d8b480e4012018d48bc83a7f81f
- This CL provides the framework for manipulating the pinned stack using
an input policy (to be determined later) provided by the SystemUI.
Test: android.server.cts.ActivityManagerPinnedStackTests
Test: #testNonTappablePipActivity
Change-Id: I025c41fff26ed05a35d68e59f10330680ed11ea8
With current approach there is a high chance of making a programming
error and altering the state of singleton Configuration.EMPTY object,
because previously configuration was usually set by link to it.
This CL changes the behavior to create Configuration member objects
only once and alter their state afterwards.
Test: Manual and existing tests still pass.
Change-Id: Ie267c2fbf555f137670b7bd2cd251b817c69bc8e
NOTE: Linear blending is currently disabled in this CL as the
feature is still a work in progress
Android currently performs all blending (any kind of linear math
on colors really) on gamma-encoded colors. Since Android assumes
that the default color space is sRGB, all bitmaps and colors
are encoded with the sRGB Opto-Electronic Conversion Function
(OECF, which can be approximated with a power function). Since
the power curve is not linear, our linear math is incorrect.
The result is that we generate colors that tend to be too dark;
this affects blending but also anti-aliasing, gradients, blurs,
etc.
The solution is to convert gamma-encoded colors back to linear
space before doing any math on them, using the sRGB Electo-Optical
Conversion Function (EOCF). This is achieved in different
ways in different parts of the pipeline:
- Using hardware conversions when sampling from OpenGL textures
or writing into OpenGL frame buffers
- Using software conversion functions, to translate app-supplied
colors to and from sRGB
- Using Skia's color spaces
Any type of processing on colors must roughly ollow these steps:
[sRGB input]->EOCF->[linear data]->[processing]->OECF->[sRGB output]
For the sRGB color space, the conversion functions are defined as
follows:
OECF(linear) :=
linear <= 0.0031308 ? linear * 12.92 : (pow(linear, 1/2.4) * 1.055) - 0.055
EOCF(srgb) :=
srgb <= 0.04045 ? srgb / 12.92 : pow((srgb + 0.055) / 1.055, 2.4)
The EOCF is simply the reciprocal of the OECF.
While it is highly recommended to use the exact sRGB conversion
functions everywhere possible, it is sometimes useful or beneficial
to rely on approximations:
- pow(x,2.2) and pow(x,1/2.2)
- x^2 and sqrt(x)
The latter is particularly useful in fragment shaders (for instance
to apply dithering in sRGB space), especially if the sqrt() can be
replaced with an inversesqrt().
Here is a fairly exhaustive list of modifications implemented
in this CL:
- Set TARGET_ENABLE_LINEAR_BLENDING := false in BoardConfig.mk
to disable linear blending. This is only for GLES 2.0 GPUs
with no hardware sRGB support. This flag is currently assumed
to be false (see note above)
- sRGB writes are disabled when entering a functor (WebView).
This will need to be fixed at some point
- Skia bitmaps are created with the sRGB color space
- Bitmaps using a 565 config are expanded to 888
- Linear blending is disabled when entering a functor
- External textures are not properly sampled (see below)
- Gradients are interpolated in linear space
- Texture-based dithering was replaced with analytical dithering
- Dithering is done in the quantization color space, which is
why we must do EOCF(OECF(color)+dither)
- Text is now gamma corrected differently depending on the luminance
of the source pixel. The asumption is that a bright pixel will be
blended on a dark background and the other way around. The source
alpha is gamma corrected to thicken dark on bright and thin
bright on dark to match the intended design of fonts. This also
matches the behavior of popular design/drawing applications
- Removed the asset atlas. It did not contain anything useful and
could not be sampled in sRGB without a yet-to-be-defined GL
extension
- The last column of color matrices is converted to linear space
because its value are added to linear colors
Missing features:
- Resource qualifier?
- Regeneration of goldeng images for automated tests
- Handle alpha8/grey8 properly
- Disable sRGB write for layers with external textures
Test: Manual testing while work in progress
Bug: 29940137
Change-Id: I6a07b15ab49b554377cd33a36b6d9971a15e9a0b
Make sure ACTION_HOVER_EXIT is never sent to a
ViewGroup more than once.
While processing ACTION_HOVER_MOVE during exiting
a hover target never send it a ACTION_HOVER_ENTER.
Test: android.view.cts.HoverTest
Bug: 32071138
Bug: 32071098
Change-Id: Ibc1809137907176437a3a5a4ea14b00f1c629b58
Just the basic cleanup first, will follow-up with a more
comprehensive update later
Test: builds & boots, refactor no behavior change
Change-Id: Ie3a7144b5fefdfda085e2ab50da8b0e627a1ecb8
