/* * Copyright (c) 2014-2016, The Linux Foundation. All rights reserved. * Not a Contribution. * * Copyright 2015 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef __HWC_SESSION_H__ #define __HWC_SESSION_H__ #include #include #include "hwc_callbacks.h" #include "hwc_layers.h" #include "hwc_display.h" #include "hwc_display_primary.h" #include "hwc_display_external.h" #include "hwc_display_virtual.h" #include "hwc_color_manager.h" namespace sdm { class HWCSession : hwc2_device_t, public qClient::BnQClient { public: struct HWCModuleMethods : public hw_module_methods_t { HWCModuleMethods() { hw_module_methods_t::open = HWCSession::Open; } }; explicit HWCSession(const hw_module_t *module); int Init(); int Deinit(); HWC2::Error CreateVirtualDisplayObject(uint32_t width, uint32_t height, int32_t *format); template static int32_t CallDisplayFunction(hwc2_device_t *device, hwc2_display_t display, HWC2::Error (HWCDisplay::*member)(Args...), Args... args) { if (!device) { return HWC2_ERROR_BAD_DISPLAY; } HWCSession *hwc_session = static_cast(device); auto status = HWC2::Error::BadDisplay; if (hwc_session->hwc_display_[display]) { auto hwc_display = hwc_session->hwc_display_[display]; status = (hwc_display->*member)(std::forward(args)...); } return INT32(status); } template static int32_t CallLayerFunction(hwc2_device_t *device, hwc2_display_t display, hwc2_layer_t layer, HWC2::Error (HWCLayer::*member)(Args...), Args... args) { if (!device) { return HWC2_ERROR_BAD_DISPLAY; } HWCSession *hwc_session = static_cast(device); auto status = HWC2::Error::BadDisplay; if (hwc_session->hwc_display_[display]) { status = HWC2::Error::BadLayer; auto hwc_layer = hwc_session->hwc_display_[display]->GetHWCLayer(layer); if (hwc_layer != nullptr) { status = (hwc_layer->*member)(std::forward(args)...); if (hwc_session->hwc_display_[display]->geometry_changes_) { hwc_session->hwc_display_[display]->validated_ = false; } } } return INT32(status); } // HWC2 Functions that require a concrete implementation in hwc session // and hence need to be member functions static int32_t AcceptDisplayChanges(hwc2_device_t *device, hwc2_display_t display); static int32_t CreateLayer(hwc2_device_t *device, hwc2_display_t display, hwc2_layer_t *out_layer_id); static int32_t CreateVirtualDisplay(hwc2_device_t *device, uint32_t width, uint32_t height, int32_t *format, hwc2_display_t *out_display_id); static int32_t DestroyLayer(hwc2_device_t *device, hwc2_display_t display, hwc2_layer_t layer); static int32_t DestroyVirtualDisplay(hwc2_device_t *device, hwc2_display_t display); static void Dump(hwc2_device_t *device, uint32_t *out_size, char *out_buffer); static int32_t PresentDisplay(hwc2_device_t *device, hwc2_display_t display, int32_t *out_retire_fence); static int32_t RegisterCallback(hwc2_device_t *device, int32_t descriptor, hwc2_callback_data_t callback_data, hwc2_function_pointer_t pointer); static int32_t SetOutputBuffer(hwc2_device_t *device, hwc2_display_t display, buffer_handle_t buffer, int32_t releaseFence); static int32_t SetLayerZOrder(hwc2_device_t *device, hwc2_display_t display, hwc2_layer_t layer, uint32_t z); static int32_t SetPowerMode(hwc2_device_t *device, hwc2_display_t display, int32_t int_mode); static int32_t ValidateDisplay(hwc2_device_t *device, hwc2_display_t display, uint32_t *out_num_types, uint32_t *out_num_requests); static int32_t SetColorMode(hwc2_device_t *device, hwc2_display_t display, int32_t /*android_color_mode_t*/ int_mode); static int32_t SetColorTransform(hwc2_device_t *device, hwc2_display_t display, const float *matrix, int32_t /*android_color_transform_t*/ hint); private: static const int kExternalConnectionTimeoutMs = 500; static const int kPartialUpdateControlTimeoutMs = 100; // hwc methods static int Open(const hw_module_t *module, const char *name, hw_device_t **device); static int Close(hw_device_t *device); static void GetCapabilities(struct hwc2_device *device, uint32_t *outCount, int32_t *outCapabilities); static hwc2_function_pointer_t GetFunction(struct hwc2_device *device, int32_t descriptor); // Uevent thread static void *HWCUeventThread(void *context); void *HWCUeventThreadHandler(); int GetEventValue(const char *uevent_data, int length, const char *event_info); int HotPlugHandler(bool connected); void ResetPanel(); int32_t ConnectDisplay(int disp); int DisconnectDisplay(int disp); int GetVsyncPeriod(int disp); // QClient methods virtual android::status_t notifyCallback(uint32_t command, const android::Parcel *input_parcel, android::Parcel *output_parcel); void DynamicDebug(const android::Parcel *input_parcel); void SetFrameDumpConfig(const android::Parcel *input_parcel); android::status_t SetMaxMixerStages(const android::Parcel *input_parcel); android::status_t SetDisplayMode(const android::Parcel *input_parcel); android::status_t SetSecondaryDisplayStatus(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t ToggleScreenUpdates(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t ConfigureRefreshRate(const android::Parcel *input_parcel); android::status_t QdcmCMDHandler(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t ControlPartialUpdate(const android::Parcel *input_parcel, android::Parcel *out); android::status_t OnMinHdcpEncryptionLevelChange(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t SetPanelBrightness(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t GetPanelBrightness(const android::Parcel *input_parcel, android::Parcel *output_parcel); // These functions return the actual display config info as opposed to FB android::status_t HandleSetActiveDisplayConfig(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t HandleGetActiveDisplayConfig(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t HandleGetDisplayConfigCount(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t HandleGetDisplayAttributesForConfig(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t GetVisibleDisplayRect(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t SetDynamicBWForCamera(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t GetBWTransactionStatus(const android::Parcel *input_parcel, android::Parcel *output_parcel); android::status_t SetMixerResolution(const android::Parcel *input_parcel); android::status_t SetColorModeOverride(const android::Parcel *input_parcel); static Locker locker_; CoreInterface *core_intf_ = NULL; HWCDisplay *hwc_display_[HWC_NUM_DISPLAY_TYPES] = {NULL}; HWCCallbacks callbacks_; pthread_t uevent_thread_; bool uevent_thread_exit_ = false; const char *uevent_thread_name_ = "HWC_UeventThread"; HWCBufferAllocator *buffer_allocator_; HWCBufferSyncHandler buffer_sync_handler_; HWCColorManager *color_mgr_ = NULL; bool reset_panel_ = false; bool secure_display_active_ = false; bool external_pending_connect_ = false; bool new_bw_mode_ = false; bool need_invalidate_ = false; int bw_mode_release_fd_ = -1; qService::QService *qservice_ = NULL; }; } // namespace sdm #endif // __HWC_SESSION_H__