1 /* 2 * Copyright 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #ifndef LOG_TAG 20 #warning "Composer.h included without LOG_TAG" 21 #endif 22 23 #include <android/hardware/graphics/composer/2.3/IComposer.h> 24 #include <composer-hal/2.2/Composer.h> 25 #include <composer-hal/2.3/ComposerClient.h> 26 27 namespace android { 28 namespace hardware { 29 namespace graphics { 30 namespace composer { 31 namespace V2_3 { 32 namespace hal { 33 34 namespace detail { 35 36 // ComposerImpl implements V2_*::IComposer on top of V2_*::ComposerHal 37 template <typename Interface, typename Hal> 38 class ComposerImpl : public V2_2::hal::detail::ComposerImpl<Interface, Hal> { 39 public: create(std::unique_ptr<Hal> hal)40 static std::unique_ptr<ComposerImpl> create(std::unique_ptr<Hal> hal) { 41 return std::make_unique<ComposerImpl>(std::move(hal)); 42 } 43 ComposerImpl(std::unique_ptr<Hal> hal)44 explicit ComposerImpl(std::unique_ptr<Hal> hal) : BaseType2_2(std::move(hal)) {} 45 46 // IComposer 2.3 interface 47 createClient_2_3(IComposer::createClient_2_3_cb hidl_cb)48 Return<void> createClient_2_3(IComposer::createClient_2_3_cb hidl_cb) override { 49 std::unique_lock<std::mutex> lock(mClientMutex); 50 if (!waitForClientDestroyedLocked(lock)) { 51 hidl_cb(Error::NO_RESOURCES, nullptr); 52 return Void(); 53 } 54 55 sp<ComposerClient> client = ComposerClient::create(mHal.get()).release(); 56 if (!client) { 57 hidl_cb(Error::NO_RESOURCES, nullptr); 58 return Void(); 59 } 60 61 auto clientDestroyed = [this]() { onClientDestroyed(); }; 62 client->setOnClientDestroyed(clientDestroyed); 63 64 mClient = client; 65 hidl_cb(Error::NONE, client); 66 return Void(); 67 } 68 69 private: 70 using BaseType2_2 = V2_2::hal::detail::ComposerImpl<Interface, Hal>; 71 using BaseType2_1 = V2_1::hal::detail::ComposerImpl<Interface, Hal>; 72 73 using BaseType2_1::mClient; 74 using BaseType2_1::mClientMutex; 75 using BaseType2_1::mHal; 76 using BaseType2_1::onClientDestroyed; 77 using BaseType2_1::waitForClientDestroyedLocked; 78 }; 79 80 } // namespace detail 81 82 using Composer = detail::ComposerImpl<IComposer, ComposerHal>; 83 84 } // namespace hal 85 } // namespace V2_3 86 } // namespace composer 87 } // namespace graphics 88 } // namespace hardware 89 } // namespace android 90