Add haptic-generating effect.

        <library name="downmix" path="libdownmix.so"/>

        <library name="loudness_enhancer" path="libldnhncr.so"/>

        <library name="dynamics_processing" path="libdynproc.so"/>

        <library name="haptic_generator" path="libhapticgenerator.so"/>

    </libraries>

    <!-- list of effects to load.

        <effect name="downmix" library="downmix" uuid="93f04452-e4fe-41cc-91f9-e475b6d1d69f"/>

        <effect name="loudness_enhancer" library="loudness_enhancer" uuid="fa415329-2034-4bea-b5dc-5b381c8d1e2c"/>

        <effect name="dynamics_processing" library="dynamics_processing" uuid="e0e6539b-1781-7261-676f-6d7573696340"/>

        <effect name="haptic_generator" library="haptic_generator" uuid="97c4acd1-8b82-4f2f-832e-c2fe5d7a9931"/>

    </effects>

    <!-- Audio pre processor configurations.

// Copyright (C) 2020 The Android Open Source Project

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//      http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

// HapticGenerator library

cc_library_shared {

    name: "libhapticgenerator",

    vendor: true,

    srcs: [

        "EffectHapticGenerator.cpp",

        "Processors.cpp",

    ],

    cflags: [

        "-O2", // Turning on the optimization in order to reduce effect processing time.

               // The latency is around 1/5 less than without the optimization.

        "-Wall",

        "-Werror",

        "-ffast-math", // This is needed for the non-zero coefficients optimization for

                       // BiquadFilter. Try the biquad_filter_benchmark test in audio_utils

                       // with/without `-ffast-math` for more context.

        "-fvisibility=hidden",

    ],

    shared_libs: [

        "libaudioutils",

        "liblog",

        "libutils",

    ],

    relative_install_path: "soundfx",

    header_libs: [

        "libaudioeffects",

    ],

}