Peter Cai
94f2037c77
This will allow us to dynamically load multiple different versions of audio interface implementation into the same sysbta hal process. Note that since we are using a weird suffix here, the default `registerPassthroughServiceImplementation` will not work, and we will have to define our own dynamic symbol for it.
83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_AUDIO_UTIL_H
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#define ANDROID_HARDWARE_AUDIO_UTIL_H
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// clang-format off
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#include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h)
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// clang-format on
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#include <algorithm>
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#include <vector>
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#include <system/audio.h>
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namespace android {
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namespace hardware {
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namespace audio {
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namespace CORE_TYPES_CPP_VERSION {
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namespace implementation {
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using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
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using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
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namespace util {
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/** @return true if gain is between 0 and 1 included. */
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constexpr bool isGainNormalized(float gain) {
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return gain >= 0.0 && gain <= 1.0;
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}
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template <typename T>
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inline bool element_in(T e, const std::vector<T>& v) {
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return std::find(v.begin(), v.end(), e) != v.end();
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}
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static inline Result analyzeStatus(status_t status) {
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switch (status) {
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case 0:
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return Result::OK;
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case -EINVAL:
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return Result::INVALID_ARGUMENTS;
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case -ENODATA:
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return Result::INVALID_STATE;
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case -ENODEV:
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return Result::NOT_INITIALIZED;
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case -ENOSYS:
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return Result::NOT_SUPPORTED;
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default:
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return Result::INVALID_STATE;
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}
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}
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static inline Result analyzeStatus(const char* className, const char* funcName, status_t status,
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const std::vector<int>& ignoreErrors = {}) {
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if (status != 0 && !element_in(-status, ignoreErrors)) {
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ALOGW("Error from HAL %s in function %s: %s", className, funcName, strerror(-status));
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}
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return analyzeStatus(status);
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}
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} // namespace util
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} // namespace implementation
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} // namespace CORE_TYPES_CPP_VERSION
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} // namespace audio
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} // namespace hardware
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} // namespace android
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#endif // ANDROID_HARDWARE_AUDIO_UTIL_H
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