1 /* 2 * Copyright (C) 2017 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 CAMERA_COMMON_1_0_HANDLEIMPORTED_H 18 #define CAMERA_COMMON_1_0_HANDLEIMPORTED_H 19 20 #include <utils/Mutex.h> 21 #include <android/hardware/graphics/mapper/2.0/IMapper.h> 22 #include <cutils/native_handle.h> 23 24 using android::hardware::graphics::mapper::V2_0::IMapper; 25 26 namespace android { 27 namespace hardware { 28 namespace camera { 29 namespace common { 30 namespace V1_0 { 31 namespace helper { 32 33 // Borrowed from graphics HAL. Use this until gralloc mapper HAL is working 34 class HandleImporter { 35 public: 36 HandleImporter(); 37 38 // In IComposer, any buffer_handle_t is owned by the caller and we need to 39 // make a clone for hwcomposer2. We also need to translate empty handle 40 // to nullptr. This function does that, in-place. 41 bool importBuffer(buffer_handle_t& handle); 42 void freeBuffer(buffer_handle_t handle); 43 bool importFence(const native_handle_t* handle, int& fd) const; 44 void closeFence(int fd) const; 45 46 private: 47 void initializeLocked(); 48 void cleanup(); 49 50 Mutex mLock; 51 bool mInitialized; 52 sp<IMapper> mMapper; 53 54 }; 55 56 } // namespace helper 57 } // namespace V1_0 58 } // namespace common 59 } // namespace camera 60 } // namespace hardware 61 } // namespace android 62 63 #endif // CAMERA_COMMON_1_0_HANDLEIMPORTED_H