text: /*
   * 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 TNT_FILAMENT_DETAILS_SWAPCHAIN_H
  #define TNT_FILAMENT_DETAILS_SWAPCHAIN_H
  
  #include "upcast.h"
  
  #include "private/backend/DriverApi.h"
  
  #include <filament/SwapChain.h>
  
  #include <utils/compiler.h>
  
  namespace filament {
  namespace details {
  
  class FEngine;
  
  class FSwapChain : public SwapChain {
  public:
      FSwapChain(FEngine& engine, void* nativeWindow, uint64_t flags);
      void terminate(FEngine& engine) noexcept;
  
      void makeCurrent(backend::DriverApi& driverApi) noexcept {
          driverApi.makeCurrent(mSwapChain, mSwapChain);
      }
  
      void commit(backend::DriverApi& driverApi) noexcept {
          driverApi.commit(mSwapChain);
      }
  
      void* getNativeWindow() const noexcept {
          return mNativeWindow;
      }
  
      constexpr bool isTransparent() const noexcept {
          return (mConfigFlags & CONFIG_TRANSPARENT) != 0;
      }
  
      constexpr bool isReadable() const noexcept {
          return (mConfigFlags & CONFIG_READABLE) != 0;
      }
  
      backend::Handle<backend::HwSwapChain> getHwHandle() const noexcept {
        return mSwapChain;
      }
  
  private:
      backend::Handle<backend::HwSwapChain> mSwapChain;
      void* mNativeWindow = nullptr;
      uint64_t mConfigFlags = 0;
  };
  
  FILAMENT_UPCAST(SwapChain)
  
  } // namespace details
  } // namespace filament
  
  #endif // TNT_FILAMENT_DETAILS_SWAPCHAIN_H
  