| 2b4dc1156695ae0a7498bf8fe7cd6b82941026d3 |
|
02-Oct-2015 |
Alan Viverette <alanv@google.com> |
Animate radial time picker selector during hour/minute transition
Also propagates XML attrs from time picker to radial view during
construction, which allows the hour colors & etc. to be changed
inline without needing to set the timePickerStyle theme attribute.
Bug: 20333885
Change-Id: Ib42b9f5b93b5d6ce1dcbaa05f99cef40c9f9a9d3
/frameworks/base/core/java/android/util/MathUtils.java
|
| 1619ed4706a0bf906d967ab7987cd4c475ac3462 |
|
22-Sep-2015 |
Adam Lesinski <adamlesinski@google.com> |
Fix security issues when using Parcel.setDataPosition() with untrusted input
When seeking forward in the Parcel, adding the extracted size to the Parcel.dataPosition()
can result in an overflow. Guard against this.
Bug:23909429
Change-Id: If37cdebbf05a92810300363d1a6ecd8b42b6da26
/frameworks/base/core/java/android/util/MathUtils.java
|
| 9af77a4ce22540726fbddd275f89e65fd1a1edf8 |
|
02-Apr-2015 |
ztenghui <ztenghui@google.com> |
Add group scaling factor into stroke width.
Originally, stroke width is independent of group scaling.
But that is a bug and causing animation trouble.
b/19501782
Change-Id: I33d5e44f2f8b2a82fee1a5a326223a39aaffa86c
/frameworks/base/core/java/android/util/MathUtils.java
|
| 33253a4baa6279f81a73425b49dfb6abe5f5416e |
|
01-Oct-2014 |
Neil Fuller <nfuller@google.com> |
Switch from FloatMath -> Math and Math.hypot where possible
The motivation is an API change: FloatMath is going to be
deprecated and/or removed. Performance is not the goal of
this change.
That said...
Math is faster than FloatMath with AOT compilation.
While making the change, occurances of:
{Float}Math.sqrt(x * x + y * y) and
{Float}Math.sqrt({Float}Math.pow(x, 2) + {Float}Math.pow(y, 2))
have been replaced with:
{(float)} Math.hypot(x, y)
Right now there is no runtime intrinsic for hypot so is not faster
in all cases for AOT compilation:
Math.sqrt(x * x + y * y) is faster than Math.hypot(x, y) with
AOT, but all other combinations of FloatMath, use of pow() etc.
are slower than hypot().
hypot() has the advantage of being self documenting and
could be optimized in future. None of the behavior differences
around NaN and rounding appear to be important for the cases
looked at: they all assume results and arguments are in range
and usually the results are cast to float.
Different implementations measured on hammerhead / L:
AOT compiled:
[FloatMath.hypot(x, y)]
benchmark=Hypot_FloatMathHypot} 633.85 ns; σ=0.32 ns @ 3 trials
[FloatMath.sqrt(x*x + y*y)]
benchmark=Hypot_FloatMathSqrtMult} 684.17 ns; σ=4.83 ns @ 3 trials
[FloatMath.sqrt(FloatMath.pow(x, 2) + FloatMath.pow(y, 2))]
benchmark=Hypot_FloatMathSqrtPow} 1270.65 ns; σ=12.20 ns @ 6 trials
[(float) Math.hypot(x, y)]
benchmark=Hypot_MathHypot} 96.80 ns; σ=0.05 ns @ 3 trials
[(float) Math.sqrt(x*x + y*y)]
benchmark=Hypot_MathSqrtMult} 23.97 ns; σ=0.01 ns @ 3 trials
[(float) Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2))]
benchmark=Hypot_MathSqrtPow} 156.19 ns; σ=0.12 ns @ 3 trials
Interpreter:
benchmark=Hypot_FloatMathHypot} 1180.54 ns; σ=5.13 ns @ 3 trials
benchmark=Hypot_FloatMathSqrtMult} 1121.05 ns; σ=3.80 ns @ 3 trials
benchmark=Hypot_FloatMathSqrtPow} 3327.14 ns; σ=7.33 ns @ 3 trials
benchmark=Hypot_MathHypot} 856.57 ns; σ=1.41 ns @ 3 trials
benchmark=Hypot_MathSqrtMult} 1028.92 ns; σ=9.11 ns @ 3 trials
benchmark=Hypot_MathSqrtPow} 2539.47 ns; σ=24.44 ns @ 3 trials
Bug: https://code.google.com/p/android/issues/detail?id=36199
Change-Id: I06c91f682095e627cb547d60d936ef87941be692
/frameworks/base/core/java/android/util/MathUtils.java
|
| ac3fcb1590e1da21324c13ce237ec48f2bf488bf |
|
03-May-2012 |
Jeff Sharkey <jsharkey@android.com> |
Reduce persist threshold for lower warning/limit.
Default is 2MB persist threshold, but even that can be substantial
for devices on 100MB/month plans. This change gradually reduces the
persist threshold up to 8x lower (256kb outstanding) based on lowest
active policy.
Bug: 5382676
Change-Id: Ief4e8cdb169bfb151a3d1b45722a8eaa01926508
/frameworks/base/core/java/android/util/MathUtils.java
|
| e85c5aa67ea27f930b573c0c6662ef6bd6314d54 |
|
13-Aug-2009 |
Romain Guy <romainguy@android.com> |
Add norm() and map() to MathUtils.
/frameworks/base/core/java/android/util/MathUtils.java
|
| a9d2d5ed2840bc3331e1a387b26efc44c6211623 |
|
10-Aug-2009 |
Romain Guy <romainguy@android.com> |
Make the laves follow the ripples
/frameworks/base/core/java/android/util/MathUtils.java
|
| a32d100b34d048cf0c765d8f31d87b81ab88d1eb |
|
01-Aug-2009 |
Romain Guy <romainguy@android.com> |
Add new utility methods to rsScriptC_Lib, android.util.MathUtil and android.graphics.Color.
Fixes RS compilation.
/frameworks/base/core/java/android/util/MathUtils.java
|