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 <android/hardware/graphics/mapper/2.0/IMapper.h> 21 #include <android/hardware/graphics/mapper/3.0/IMapper.h> 22 #include <android/hardware/graphics/mapper/4.0/IMapper.h> 23 #include <cutils/native_handle.h> 24 #include <utils/Mutex.h> 25 26 using android::hardware::graphics::mapper::V2_0::IMapper; 27 using android::hardware::graphics::mapper::V2_0::YCbCrLayout; 28 29 namespace android { 30 namespace hardware { 31 namespace camera { 32 namespace common { 33 namespace helper { 34 35 // Borrowed from graphics HAL. Use this until gralloc mapper HAL is working 36 class HandleImporter { 37 public: 38 HandleImporter(); 39 40 // In IComposer, any buffer_handle_t is owned by the caller and we need to 41 // make a clone for hwcomposer2. We also need to translate empty handle 42 // to nullptr. This function does that, in-place. 43 bool importBuffer(buffer_handle_t& handle); 44 void freeBuffer(buffer_handle_t handle); 45 bool importFence(const native_handle_t* handle, int& fd) const; 46 void closeFence(int fd) const; 47 48 // Locks 1-D buffer. Assumes caller has waited for acquire fences. 49 void* lock(buffer_handle_t& buf, uint64_t cpuUsage, size_t size); 50 51 // Locks 2-D buffer. Assumes caller has waited for acquire fences. 52 void* lock(buffer_handle_t& buf, uint64_t cpuUsage, const IMapper::Rect& accessRegion); 53 54 // Assumes caller has waited for acquire fences. 55 YCbCrLayout lockYCbCr(buffer_handle_t& buf, uint64_t cpuUsage, 56 const IMapper::Rect& accessRegion); 57 58 // Query the stride of the first plane in bytes. 59 status_t getMonoPlanarStrideBytes(buffer_handle_t& buf, uint32_t* stride /*out*/); 60 61 int unlock(buffer_handle_t& buf); // returns release fence 62 63 // Query Gralloc4 metadata 64 bool isSmpte2086Present(const buffer_handle_t& buf); 65 bool isSmpte2094_10Present(const buffer_handle_t& buf); 66 bool isSmpte2094_40Present(const buffer_handle_t& buf); 67 68 private: 69 void initializeLocked(); 70 void cleanup(); 71 72 template <class M, class E> 73 bool importBufferInternal(const sp<M> mapper, buffer_handle_t& handle); 74 template <class M, class E> 75 YCbCrLayout lockYCbCrInternal(const sp<M> mapper, buffer_handle_t& buf, uint64_t cpuUsage, 76 const IMapper::Rect& accessRegion); 77 template <class M, class E> 78 int unlockInternal(const sp<M> mapper, buffer_handle_t& buf); 79 80 Mutex mLock; 81 bool mInitialized; 82 sp<IMapper> mMapperV2; 83 sp<graphics::mapper::V3_0::IMapper> mMapperV3; 84 sp<graphics::mapper::V4_0::IMapper> mMapperV4; 85 }; 86 87 } // namespace helper 88 89 // NOTE: Deprecated namespace. This namespace should no longer be used for the following symbols 90 namespace V1_0::helper { 91 // Export symbols to the old namespace to preserve compatibility 92 typedef android::hardware::camera::common::helper::HandleImporter HandleImporter; 93 } // namespace V1_0::helper 94 95 } // namespace common 96 } // namespace camera 97 } // namespace hardware 98 } // namespace android 99 100 #endif // CAMERA_COMMON_1_0_HANDLEIMPORTED_H 101