Apply intensity control for haptic data.
Use the same logic in VibrationEffect.scale to control the intensity of
haptic playback in audio framework. Note that as the maximum amplitude
of vibrator is 255, convert the haptic data to pcm_8_bit before doing
scaling.
Test: Manually
Change-Id: I6136d27c9255a215834b6e3092aa8ad696fbae04
diff --git a/services/audioflinger/PlaybackTracks.h b/services/audioflinger/PlaybackTracks.h
index d9f570d..8aeae7d 100644
--- a/services/audioflinger/PlaybackTracks.h
+++ b/services/audioflinger/PlaybackTracks.h
@@ -119,6 +119,14 @@
void setHapticPlaybackEnabled(bool hapticPlaybackEnabled) {
mHapticPlaybackEnabled = hapticPlaybackEnabled;
}
+ /** Return at what intensity to play haptics, used in mixer. */
+ AudioMixer::haptic_intensity_t getHapticIntensity() const { return mHapticIntensity; }
+ /** Set intensity of haptic playback, should be set after querying vibrator service. */
+ void setHapticIntensity(AudioMixer::haptic_intensity_t hapticIntensity) {
+ if (AudioMixer::isValidHapticIntensity(hapticIntensity)) {
+ mHapticIntensity = hapticIntensity;
+ }
+ }
protected:
// for numerous
@@ -197,6 +205,8 @@
sp<media::VolumeHandler> mVolumeHandler; // handles multiple VolumeShaper configs and operations
bool mHapticPlaybackEnabled = false; // indicates haptic playback enabled or not
+ // intensity to play haptic data
+ AudioMixer::haptic_intensity_t mHapticIntensity = AudioMixer::HAPTIC_SCALE_NONE;
private:
// The following fields are only for fast tracks, and should be in a subclass