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 #define HWC2_INCLUDE_STRINGIFICATION 20 #define HWC2_USE_CPP11 21 #include <hardware/hwcomposer2.h> 22 #undef HWC2_INCLUDE_STRINGIFICATION 23 #undef HWC2_USE_CPP11 24 25 #include <unordered_set> 26 27 #include <android/hardware/power/1.3/IPower.h> 28 #include <utils/StrongPointer.h> 29 30 #include "DisplayIdentification.h" 31 32 namespace android { 33 namespace Hwc2 { 34 35 class PowerAdvisor { 36 public: 37 virtual ~PowerAdvisor(); 38 39 virtual void setExpensiveRenderingExpected(DisplayId displayId, bool expected) = 0; 40 }; 41 42 namespace impl { 43 44 namespace V1_3 = android::hardware::power::V1_3; 45 46 // PowerAdvisor is a wrapper around IPower HAL which takes into account the 47 // full state of the system when sending out power hints to things like the GPU. 48 class PowerAdvisor final : public Hwc2::PowerAdvisor { 49 public: 50 PowerAdvisor(); 51 ~PowerAdvisor() override; 52 53 void setExpensiveRenderingExpected(DisplayId displayId, bool expected) override; 54 55 private: 56 sp<V1_3::IPower> getPowerHal(); 57 58 std::unordered_set<DisplayId> mExpensiveDisplays; 59 bool mNotifiedExpensiveRendering = false; 60 bool mReconnectPowerHal = false; 61 }; 62 63 } // namespace impl 64 } // namespace Hwc2 65 } // namespace android 66
