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android/internal/oboe: Update Oboe to 1.6.0
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172
audio/internal/oboe/oboe_aaudio_AAudioExtensions_android.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
| /* | ||
| * Copyright 2019 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. | ||
| */ | ||
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| #ifndef OBOE_AAUDIO_EXTENSIONS_H | ||
| #define OBOE_AAUDIO_EXTENSIONS_H | ||
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| #include <dlfcn.h> | ||
| #include <stdint.h> | ||
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| #include <sys/system_properties.h> | ||
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| #include "oboe_common_OboeDebug_android.h" | ||
| #include "oboe_oboe_Oboe_android.h" | ||
| #include "oboe_aaudio_AAudioLoader_android.h" | ||
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| namespace oboe { | ||
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| #define LIB_AAUDIO_NAME "libaaudio.so" | ||
| #define FUNCTION_IS_MMAP "AAudioStream_isMMapUsed" | ||
| #define FUNCTION_SET_MMAP_POLICY "AAudio_setMMapPolicy" | ||
| #define FUNCTION_GET_MMAP_POLICY "AAudio_getMMapPolicy" | ||
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| #define AAUDIO_ERROR_UNAVAILABLE static_cast<aaudio_result_t>(Result::ErrorUnavailable) | ||
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| typedef struct AAudioStreamStruct AAudioStream; | ||
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| /** | ||
| * Call some AAudio test routines that are not part of the normal API. | ||
| */ | ||
| class AAudioExtensions { | ||
| public: | ||
| AAudioExtensions() { | ||
| int32_t policy = getIntegerProperty("aaudio.mmap_policy", 0); | ||
| mMMapSupported = isPolicyEnabled(policy); | ||
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| policy = getIntegerProperty("aaudio.mmap_exclusive_policy", 0); | ||
| mMMapExclusiveSupported = isPolicyEnabled(policy); | ||
| } | ||
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| static bool isPolicyEnabled(int32_t policy) { | ||
| return (policy == AAUDIO_POLICY_AUTO || policy == AAUDIO_POLICY_ALWAYS); | ||
| } | ||
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| static AAudioExtensions &getInstance() { | ||
| static AAudioExtensions instance; | ||
| return instance; | ||
| } | ||
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| bool isMMapUsed(oboe::AudioStream *oboeStream) { | ||
| AAudioStream *aaudioStream = (AAudioStream *) oboeStream->getUnderlyingStream(); | ||
| return isMMapUsed(aaudioStream); | ||
| } | ||
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| bool isMMapUsed(AAudioStream *aaudioStream) { | ||
| if (loadSymbols()) return false; | ||
| if (mAAudioStream_isMMap == nullptr) return false; | ||
| return mAAudioStream_isMMap(aaudioStream); | ||
| } | ||
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| /** | ||
| * Controls whether the MMAP data path can be selected when opening a stream. | ||
| * It has no effect after the stream has been opened. | ||
| * It only affects the application that calls it. Other apps are not affected. | ||
| * | ||
| * @param enabled | ||
| * @return 0 or a negative error code | ||
| */ | ||
| int32_t setMMapEnabled(bool enabled) { | ||
| if (loadSymbols()) return AAUDIO_ERROR_UNAVAILABLE; | ||
| if (mAAudio_setMMapPolicy == nullptr) return false; | ||
| return mAAudio_setMMapPolicy(enabled ? AAUDIO_POLICY_AUTO : AAUDIO_POLICY_NEVER); | ||
| } | ||
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| bool isMMapEnabled() { | ||
| if (loadSymbols()) return false; | ||
| if (mAAudio_getMMapPolicy == nullptr) return false; | ||
| int32_t policy = mAAudio_getMMapPolicy(); | ||
| return isPolicyEnabled(policy); | ||
| } | ||
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| bool isMMapSupported() { | ||
| return mMMapSupported; | ||
| } | ||
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| bool isMMapExclusiveSupported() { | ||
| return mMMapExclusiveSupported; | ||
| } | ||
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| private: | ||
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| enum { | ||
| AAUDIO_POLICY_NEVER = 1, | ||
| AAUDIO_POLICY_AUTO, | ||
| AAUDIO_POLICY_ALWAYS | ||
| }; | ||
| typedef int32_t aaudio_policy_t; | ||
|
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| int getIntegerProperty(const char *name, int defaultValue) { | ||
| int result = defaultValue; | ||
| char valueText[PROP_VALUE_MAX] = {0}; | ||
| if (__system_property_get(name, valueText) != 0) { | ||
| result = atoi(valueText); | ||
| } | ||
| return result; | ||
| } | ||
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| /** | ||
| * Load the function pointers. | ||
| * This can be called multiple times. | ||
| * It should only be called from one thread. | ||
| * | ||
| * @return 0 if successful or negative error. | ||
| */ | ||
| aaudio_result_t loadSymbols() { | ||
| if (mAAudio_getMMapPolicy != nullptr) { | ||
| return 0; | ||
| } | ||
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| void *libHandle = AAudioLoader::getInstance()->getLibHandle(); | ||
| if (libHandle == nullptr) { | ||
| LOGI("%s() could not find " LIB_AAUDIO_NAME, __func__); | ||
| return AAUDIO_ERROR_UNAVAILABLE; | ||
| } | ||
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| mAAudioStream_isMMap = (bool (*)(AAudioStream *stream)) | ||
| dlsym(libHandle, FUNCTION_IS_MMAP); | ||
| if (mAAudioStream_isMMap == nullptr) { | ||
| LOGI("%s() could not find " FUNCTION_IS_MMAP, __func__); | ||
| return AAUDIO_ERROR_UNAVAILABLE; | ||
| } | ||
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| mAAudio_setMMapPolicy = (int32_t (*)(aaudio_policy_t policy)) | ||
| dlsym(libHandle, FUNCTION_SET_MMAP_POLICY); | ||
| if (mAAudio_setMMapPolicy == nullptr) { | ||
| LOGI("%s() could not find " FUNCTION_SET_MMAP_POLICY, __func__); | ||
| return AAUDIO_ERROR_UNAVAILABLE; | ||
| } | ||
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| mAAudio_getMMapPolicy = (aaudio_policy_t (*)()) | ||
| dlsym(libHandle, FUNCTION_GET_MMAP_POLICY); | ||
| if (mAAudio_getMMapPolicy == nullptr) { | ||
| LOGI("%s() could not find " FUNCTION_GET_MMAP_POLICY, __func__); | ||
| return AAUDIO_ERROR_UNAVAILABLE; | ||
| } | ||
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| return 0; | ||
| } | ||
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| bool mMMapSupported = false; | ||
| bool mMMapExclusiveSupported = false; | ||
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| bool (*mAAudioStream_isMMap)(AAudioStream *stream) = nullptr; | ||
| int32_t (*mAAudio_setMMapPolicy)(aaudio_policy_t policy) = nullptr; | ||
| aaudio_policy_t (*mAAudio_getMMapPolicy)() = nullptr; | ||
| }; | ||
|
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| } // namespace oboe | ||
|
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| #endif //OBOE_AAUDIO_EXTENSIONS_H |
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