1 /* 2 * Copyright (C) 2016 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 #ifndef ANDROID_DRM_HWC_TWO_H_ 18 #define ANDROID_DRM_HWC_TWO_H_ 19 20 #include <hardware/hwcomposer2.h> 21 22 #include "drm/ResourceManager.h" 23 #include "hwc2_device/HwcDisplay.h" 24 25 namespace android { 26 27 class DrmHwcTwo : public PipelineToFrontendBindingInterface { 28 public: 29 DrmHwcTwo(); 30 ~DrmHwcTwo() override = default; 31 32 std::pair<HWC2_PFN_HOTPLUG, hwc2_callback_data_t> hotplug_callback_{}; 33 std::pair<HWC2_PFN_VSYNC, hwc2_callback_data_t> vsync_callback_{}; 34 #if PLATFORM_SDK_VERSION > 29 35 std::pair<HWC2_PFN_VSYNC_2_4, hwc2_callback_data_t> vsync_2_4_callback_{}; 36 std::pair<HWC2_PFN_VSYNC_PERIOD_TIMING_CHANGED, hwc2_callback_data_t> 37 period_timing_changed_callback_{}; 38 #endif 39 std::pair<HWC2_PFN_REFRESH, hwc2_callback_data_t> refresh_callback_{}; 40 41 // Device functions 42 HWC2::Error CreateVirtualDisplay(uint32_t width, uint32_t height, 43 int32_t *format, hwc2_display_t *display); 44 HWC2::Error DestroyVirtualDisplay(hwc2_display_t display); 45 void Dump(uint32_t *outSize, char *outBuffer); 46 uint32_t GetMaxVirtualDisplayCount(); 47 HWC2::Error RegisterCallback(int32_t descriptor, hwc2_callback_data_t data, 48 hwc2_function_pointer_t function); 49 GetDisplay(hwc2_display_t display_handle)50 auto GetDisplay(hwc2_display_t display_handle) { 51 return displays_.count(display_handle) != 0 52 ? displays_[display_handle].get() 53 : nullptr; 54 } 55 GetResMan()56 auto &GetResMan() { 57 return resource_manager_; 58 } 59 ScheduleHotplugEvent(hwc2_display_t displayid,bool connected)60 void ScheduleHotplugEvent(hwc2_display_t displayid, bool connected) { 61 deferred_hotplug_events_[displayid] = connected; 62 } 63 64 // PipelineToFrontendBindingInterface 65 bool BindDisplay(DrmDisplayPipeline *pipeline) override; 66 bool UnbindDisplay(DrmDisplayPipeline *pipeline) override; 67 void FinalizeDisplayBinding() override; 68 69 void SendVsyncEventToClient(hwc2_display_t displayid, int64_t timestamp, 70 uint32_t vsync_period) const; 71 void SendVsyncPeriodTimingChangedEventToClient(hwc2_display_t displayid, 72 int64_t timestamp) const; 73 74 private: 75 void SendHotplugEventToClient(hwc2_display_t displayid, bool connected); 76 77 ResourceManager resource_manager_; 78 std::map<hwc2_display_t, std::unique_ptr<HwcDisplay>> displays_; 79 std::map<DrmDisplayPipeline *, hwc2_display_t> display_handles_; 80 81 std::string mDumpString; 82 83 std::map<hwc2_display_t, bool> deferred_hotplug_events_; 84 std::vector<hwc2_display_t> displays_for_removal_list_; 85 86 uint32_t last_display_handle_ = kPrimaryDisplay; 87 }; 88 } // namespace android 89 90 #endif 91