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      1 /*
      2  * Copyright 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 ANDROID_DVR_HARDWARE_COMPOSER_IMPL_VR_COMPOSER_CLIENT_H
     18 #define ANDROID_DVR_HARDWARE_COMPOSER_IMPL_VR_COMPOSER_CLIENT_H
     19 
     20 #include <android/frameworks/vr/composer/1.0/IVrComposerClient.h>
     21 #include <composer-command-buffer/2.1/ComposerCommandBuffer.h>
     22 #include <composer-hal/2.1/ComposerClient.h>
     23 #include <composer-hal/2.1/ComposerCommandEngine.h>
     24 
     25 namespace android {
     26 namespace dvr {
     27 
     28 class VrHwc;
     29 
     30 using hardware::graphics::composer::V2_1::hal::ComposerCommandEngine;
     31 using hardware::graphics::composer::V2_1::hal::ComposerHal;
     32 using hardware::graphics::composer::V2_1::hal::detail::ComposerClientImpl;
     33 
     34 using ComposerClient = ComposerClientImpl<IVrComposerClient, ComposerHal>;
     35 
     36 class VrComposerClient : public ComposerClient {
     37  public:
     38   VrComposerClient(android::dvr::VrHwc& hal);
     39   virtual ~VrComposerClient();
     40 
     41  private:
     42   class VrCommandEngine : public ComposerCommandEngine {
     43    public:
     44     VrCommandEngine(VrComposerClient& client);
     45     ~VrCommandEngine() override;
     46 
     47     bool executeCommand(IComposerClient::Command command,
     48                         uint16_t length) override;
     49 
     50    private:
     51     bool executeSetLayerInfo(uint16_t length);
     52     bool executeSetClientTargetMetadata(uint16_t length);
     53     bool executeSetLayerBufferMetadata(uint16_t length);
     54 
     55     IVrComposerClient::BufferMetadata readBufferMetadata();
     56 
     57     VrComposerClient& mVrClient;
     58     android::dvr::VrHwc& mVrHal;
     59 
     60     VrCommandEngine(const VrCommandEngine&) = delete;
     61     void operator=(const VrCommandEngine&) = delete;
     62   };
     63 
     64   VrComposerClient(const VrComposerClient&) = delete;
     65   void operator=(const VrComposerClient&) = delete;
     66 
     67   std::unique_ptr<ComposerCommandEngine> createCommandEngine() override;
     68   dvr::VrHwc& mVrHal;
     69 };
     70 
     71 } // namespace dvr
     72 } // namespace android
     73 
     74 #endif  // ANDROID_DVR_HARDWARE_COMPOSER_IMPL_VR_COMPOSER_CLIENT_H
     75