Add audio-haptic channel max amplitude
Add max amplitude setting from device vibrator service to the
AudioTrack, to be passed on to the ExternalVibrationUtils and
applied as a hard limit to clip haptic data above that amplitude,
after scaling.
Bug: 188025353
Test: manual
Change-Id: Ic83661c37a2e6109538c5905b97bed916920437e
diff --git a/services/audioflinger/FastMixerState.h b/services/audioflinger/FastMixerState.h
index 857d3de..ce3cc14 100644
--- a/services/audioflinger/FastMixerState.h
+++ b/services/audioflinger/FastMixerState.h
@@ -17,6 +17,8 @@
#ifndef ANDROID_AUDIO_FAST_MIXER_STATE_H
#define ANDROID_AUDIO_FAST_MIXER_STATE_H
+#include <math.h>
+
#include <audio_utils/minifloat.h>
#include <system/audio.h>
#include <media/AudioMixer.h>
@@ -51,6 +53,7 @@
int mGeneration; // increment when any field is assigned
bool mHapticPlaybackEnabled = false; // haptic playback is enabled or not
os::HapticScale mHapticIntensity = os::HapticScale::MUTE; // intensity of haptic data
+ float mHapticMaxAmplitude = NAN; // max amplitude allowed for haptic data
};
// Represents a single state of the fast mixer