1 /* 2 * Copyright (C) 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 #include <cstring> 20 #include <mutex> 21 22 #include "DrmDevice.h" 23 #include "DrmDisplayPipeline.h" 24 #include "DrmFbImporter.h" 25 #include "UEventListener.h" 26 27 namespace android { 28 29 enum class CtmHandling { 30 kDrmOrGpu, /* Handled by DRM is possible, otherwise by GPU */ 31 kDrmOrIgnore, /* Handled by DRM is possible, otherwise displayed as is */ 32 }; 33 34 class PipelineToFrontendBindingInterface { 35 public: 36 virtual ~PipelineToFrontendBindingInterface() = default; 37 virtual bool BindDisplay(std::shared_ptr<DrmDisplayPipeline>); 38 virtual bool UnbindDisplay(std::shared_ptr<DrmDisplayPipeline>); 39 virtual void FinalizeDisplayBinding(); 40 }; 41 42 class ResourceManager { 43 public: 44 explicit ResourceManager( 45 PipelineToFrontendBindingInterface *p2f_bind_interface); 46 ResourceManager(const ResourceManager &) = delete; 47 ResourceManager &operator=(const ResourceManager &) = delete; 48 ResourceManager(const ResourceManager &&) = delete; 49 ResourceManager &&operator=(const ResourceManager &&) = delete; 50 ~ResourceManager() = default; 51 52 void Init(); 53 54 void DeInit(); 55 ForcedScalingWithGpu()56 bool ForcedScalingWithGpu() const { 57 return scale_with_gpu_; 58 } 59 GetCtmHandling()60 auto &GetCtmHandling() const { 61 return ctm_handling_; 62 } 63 GetMainLock()64 auto &GetMainLock() { 65 return main_lock_; 66 } 67 68 auto GetVirtualDisplayPipeline() -> std::shared_ptr<DrmDisplayPipeline>; 69 auto GetWritebackConnectorsCount() -> uint32_t; 70 71 static auto GetTimeMonotonicNs() -> int64_t; 72 73 private: 74 auto GetOrderedConnectors() -> std::vector<DrmConnector *>; 75 void UpdateFrontendDisplays(); 76 void DetachAllFrontendDisplays(); 77 78 std::vector<std::unique_ptr<DrmDevice>> drms_; 79 80 // Android properties: 81 bool scale_with_gpu_{}; 82 CtmHandling ctm_handling_{}; 83 84 std::shared_ptr<UEventListener> uevent_listener_; 85 86 std::recursive_mutex main_lock_; 87 88 std::map<DrmConnector *, std::shared_ptr<DrmDisplayPipeline>> 89 attached_pipelines_; 90 91 PipelineToFrontendBindingInterface *const frontend_interface_; 92 93 bool initialized_{}; 94 }; 95 } // namespace android 96