1 /* 2 * Copyright (C) 2022 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 #include <memory> 20 #include <vector> 21 22 namespace android { 23 24 class DrmConnector; 25 class DrmDevice; 26 class DrmPlane; 27 class DrmCrtc; 28 class DrmEncoder; 29 class DrmAtomicStateManager; 30 31 struct DrmDisplayPipeline; 32 33 template <class O> 34 class BindingOwner; 35 36 template <class O> 37 class PipelineBindable { 38 friend class BindingOwner<O>; 39 40 public: GetPipeline()41 auto *GetPipeline() { 42 return bound_pipeline_; 43 } 44 45 auto BindPipeline(DrmDisplayPipeline *pipeline, 46 bool return_object_if_bound = false) 47 -> std::shared_ptr<BindingOwner<O>>; 48 49 private: 50 DrmDisplayPipeline *bound_pipeline_; 51 std::weak_ptr<BindingOwner<O>> owner_object_; 52 }; 53 54 template <class B> 55 class BindingOwner { 56 public: BindingOwner(B * pb)57 explicit BindingOwner(B *pb) : bindable_(pb){}; ~BindingOwner()58 ~BindingOwner() { 59 bindable_->bound_pipeline_ = nullptr; 60 } 61 Get()62 B *Get() { 63 return bindable_; 64 } 65 66 private: 67 B *const bindable_; 68 }; 69 70 using UsablePlanes = std::pair< 71 std::vector<std::shared_ptr<BindingOwner<DrmPlane>>>, 72 std::shared_ptr<BindingOwner<DrmPlane>>>; 73 74 struct DrmDisplayPipeline { 75 static auto CreatePipeline(DrmConnector &connector) 76 -> std::unique_ptr<DrmDisplayPipeline>; 77 78 auto GetUsablePlanes() -> UsablePlanes; 79 80 ~DrmDisplayPipeline(); 81 82 DrmDevice *device; 83 84 std::shared_ptr<BindingOwner<DrmConnector>> connector; 85 std::shared_ptr<BindingOwner<DrmEncoder>> encoder; 86 std::shared_ptr<BindingOwner<DrmCrtc>> crtc; 87 std::shared_ptr<BindingOwner<DrmPlane>> primary_plane; 88 89 std::shared_ptr<DrmAtomicStateManager> atomic_state_manager; 90 }; 91 92 } // namespace android 93