1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef NAPI_RENDERER_DATA_REQUEST_CALLBACK_H 17 #define NAPI_RENDERER_DATA_REQUEST_CALLBACK_H 18 19 #include "napi/native_api.h" 20 #include "napi/native_node_api.h" 21 #include "napi_audio_renderer.h" 22 #include "napi_audio_renderer_callback.h" 23 24 namespace OHOS { 25 namespace AudioStandard { 26 class NapiRendererDataRequestCallback : public AudioRendererWriteCallback, 27 public NapiAudioRendererCallbackInner { 28 public: 29 NapiRendererDataRequestCallback(napi_env env, NapiAudioRenderer *napiRenderer); 30 ~NapiRendererDataRequestCallback() override; 31 void SaveCallbackReference(const std::string &callbackName, napi_value args) override; 32 void OnWriteData(size_t length) override; 33 void CreateWriteDataTsfn(napi_env env); 34 void RemoveCallbackReference(const std::string &callbackName, napi_env env, 35 napi_value callback, napi_value args = nullptr) override; 36 bool CheckIfTargetCallbackName(const std::string &callbackName) override; 37 protected: 38 std::shared_ptr<AutoRef> GetCallback(const std::string &callbackName) override; 39 napi_env &GetEnv() override; 40 41 private: 42 struct RendererDataRequestJsCallback { 43 std::shared_ptr<AutoRef> callback = nullptr; 44 std::string callbackName = "unknown"; 45 BufferDesc bufDesc_ {}; 46 NapiAudioRenderer *rendererNapiObj; 47 AudioRendererDataInfo audioRendererDataInfo; 48 }; 49 void OnJsRendererDataRequestCallback(std::unique_ptr<RendererDataRequestJsCallback> &jsCb); 50 static void DataRequestTsfnFinalize(napi_env env, void *data, void *hint); 51 static void SafeJsCallbackDataRequestWork(napi_env env, napi_value js_cb, void *context, void *data); 52 53 std::mutex mutex_; 54 napi_env env_ = nullptr; 55 std::shared_ptr<AutoRef> rendererDataRequestCallback_ = nullptr; 56 NapiAudioRenderer *napiRenderer_; 57 bool regArDataReqTsfn_ = false; 58 napi_threadsafe_function arDataReqTsfn_ = nullptr; 59 }; 60 } // namespace AudioStandard 61 } // namespace OHOS 62 #endif // NAPI_RENDERER_DATA_REQUEST_CALLBACK_H