diff options
Diffstat (limited to 'android/view/Choreographer.java')
-rw-r--r-- | android/view/Choreographer.java | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/android/view/Choreographer.java b/android/view/Choreographer.java index 2ffa1c5e..ba6b6cf6 100644 --- a/android/view/Choreographer.java +++ b/android/view/Choreographer.java @@ -164,6 +164,7 @@ public final class Choreographer { private long mLastFrameTimeNanos; private long mFrameIntervalNanos; private boolean mDebugPrintNextFrameTimeDelta; + private int mFPSDivisor = 1; /** * Contains information about the current frame for jank-tracking, @@ -601,6 +602,11 @@ public final class Choreographer { } } + void setFPSDivisor(int divisor) { + if (divisor <= 0) divisor = 1; + mFPSDivisor = divisor; + } + void doFrame(long frameTimeNanos, int frame) { final long startNanos; synchronized (mLock) { @@ -643,6 +649,14 @@ public final class Choreographer { return; } + if (mFPSDivisor > 1) { + long timeSinceVsync = frameTimeNanos - mLastFrameTimeNanos; + if (timeSinceVsync < (mFrameIntervalNanos * mFPSDivisor) && timeSinceVsync > 0) { + scheduleVsyncLocked(); + return; + } + } + mFrameInfo.setVsync(intendedFrameTimeNanos, frameTimeNanos); mFrameScheduled = false; mLastFrameTimeNanos = frameTimeNanos; |