| /* |
| * Copyright (C) 2011 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 NATIVE_WINDOW_WRAPPER_H_ |
| |
| #define NATIVE_WINDOW_WRAPPER_H_ |
| |
| #include <surfaceflinger/Surface.h> |
| #include <gui/SurfaceTextureClient.h> |
| |
| namespace android { |
| |
| // Both Surface and SurfaceTextureClient are RefBase that implement the |
| // ANativeWindow interface, but at different addresses. ANativeWindow is not |
| // a RefBase but acts like one for use with sp<>. This wrapper converts a |
| // Surface or SurfaceTextureClient into a single reference-counted object |
| // that holds an sp reference to the underlying Surface or SurfaceTextureClient, |
| // It provides a method to get the ANativeWindow. |
| |
| struct NativeWindowWrapper : RefBase { |
| NativeWindowWrapper( |
| const sp<Surface> &surface) : |
| mSurface(surface) { } |
| |
| NativeWindowWrapper( |
| const sp<SurfaceTextureClient> &surfaceTextureClient) : |
| mSurfaceTextureClient(surfaceTextureClient) { } |
| |
| sp<ANativeWindow> getNativeWindow() const { |
| if (mSurface != NULL) { |
| return mSurface; |
| } else { |
| return mSurfaceTextureClient; |
| } |
| } |
| |
| // If needed later we can provide a method to ask what kind of native window |
| |
| private: |
| // At most one of mSurface and mSurfaceTextureClient will be non-NULL |
| const sp<Surface> mSurface; |
| const sp<SurfaceTextureClient> mSurfaceTextureClient; |
| |
| DISALLOW_EVIL_CONSTRUCTORS(NativeWindowWrapper); |
| }; |
| |
| } // namespace android |
| |
| #endif // NATIVE_WINDOW_WRAPPER_H_ |