1 // Copyright 2019 The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 #pragma once 15 16 #include "host-common/AddressSpaceService.h" 17 #include "host-common/address_space_device.h" 18 #include "host-common/GoldfishMediaDefs.h" 19 #include "host-common/MediaVpxDecoder.h" 20 #include "host-common/MediaH264Decoder.h" 21 22 #include <unordered_map> 23 24 namespace android { 25 namespace emulation { 26 27 class AddressSpaceHostMediaContext : public AddressSpaceDeviceContext { 28 public: 29 AddressSpaceHostMediaContext(uint64_t phys_addr, const address_space_device_control_ops* ops, bool fromSnapshot); 30 virtual ~AddressSpaceHostMediaContext(); 31 void perform(AddressSpaceDevicePingInfo *info) override; 32 33 AddressSpaceDeviceType getDeviceType() const override; 34 void save(base::Stream* stream) const override; 35 bool load(base::Stream* stream) override; 36 37 private: 38 void allocatePages(uint64_t phys_addr, int num_pages); 39 void deallocatePages(uint64_t phys_addr, int num_pages); 40 void handleMediaRequest(AddressSpaceDevicePingInfo *info); 41 static MediaCodecType getMediaCodecType(uint64_t metadata); 42 static MediaOperation getMediaOperation(uint64_t metadata); 43 44 static constexpr int kAlignment = 4096; 45 static constexpr int kNumPages = 1 + 4096 * 2; // 32M + 4k 46 std::unique_ptr<MediaVpxDecoder> mVpxDecoder; 47 std::unique_ptr<MediaH264Decoder> mH264Decoder; 48 void* mHostBuffer = nullptr; 49 const address_space_device_control_ops* mControlOps = 0; 50 uint64_t mGuestAddr = 0; 51 }; 52 53 } // namespace emulation 54 } // namespace android 55