| /* |
| * Copyright (C) 2017 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 GRALLO_WRAPPER_H_ |
| #define GRALLO_WRAPPER_H_ |
| |
| #include <unordered_set> |
| |
| #include <android/hardware/graphics/allocator/2.0/IAllocator.h> |
| #include <android/hardware/graphics/mapper/2.0/IMapper.h> |
| |
| namespace allocator2 = ::android::hardware::graphics::allocator::V2_0; |
| namespace mapper2 = ::android::hardware::graphics::mapper::V2_0; |
| |
| namespace android { |
| |
| // Modified from hardware/interfaces/graphics/mapper/2.0/vts/functional/ |
| class GrallocWrapper { |
| public: |
| GrallocWrapper(); |
| ~GrallocWrapper(); |
| |
| sp<allocator2::IAllocator> getAllocator() const; |
| sp<mapper2::IMapper> getMapper() const; |
| |
| std::string dumpDebugInfo(); |
| |
| // When import is false, this simply calls IAllocator::allocate. When import |
| // is true, the returned buffers are also imported into the mapper. |
| // |
| // Either case, the returned buffers must be freed with freeBuffer. |
| std::vector<const native_handle_t*> allocate( |
| const mapper2::BufferDescriptor& descriptor, uint32_t count, bool import = true, |
| uint32_t* outStride = nullptr); |
| const native_handle_t* allocate( |
| const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo, bool import = true, |
| uint32_t* outStride = nullptr); |
| |
| mapper2::BufferDescriptor createDescriptor( |
| const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo); |
| |
| const native_handle_t* importBuffer(const hardware::hidl_handle& rawHandle); |
| void freeBuffer(const native_handle_t* bufferHandle); |
| |
| // We use fd instead of hardware::hidl_handle in these functions to pass fences |
| // in and out of the mapper. The ownership of the fd is always transferred |
| // with each of these functions. |
| void* lock(const native_handle_t* bufferHandle, uint64_t cpuUsage, |
| const mapper2::IMapper::Rect& accessRegion, int acquireFence); |
| |
| int unlock(const native_handle_t* bufferHandle); |
| |
| private: |
| void init(); |
| const native_handle_t* cloneBuffer(const hardware::hidl_handle& rawHandle); |
| |
| sp<allocator2::IAllocator> mAllocator; |
| sp<mapper2::IMapper> mMapper; |
| |
| // Keep track of all cloned and imported handles. When a test fails with |
| // ASSERT_*, the destructor will free the handles for the test. |
| std::unordered_set<const native_handle_t*> mClonedBuffers; |
| std::unordered_set<const native_handle_t*> mImportedBuffers; |
| }; |
| |
| } // namespace android |
| #endif // GRALLO_WRAPPER_H_ |