| /* |
| * Copyright (C) 2019 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 FRAME_CAPTURE_PROCESSOR_H_ |
| #define FRAME_CAPTURE_PROCESSOR_H_ |
| |
| #include <media/stagefright/foundation/ABase.h> |
| #include <media/stagefright/foundation/AHandler.h> |
| |
| namespace android { |
| |
| struct AMessage; |
| class GraphicBuffer; |
| class Rect; |
| |
| namespace renderengine { |
| class RenderEngine; |
| struct LayerSettings; |
| } |
| |
| /* |
| * Process a decoded graphic buffer through RenderEngine to |
| * convert it to sRGB. |
| * |
| * This class is a singleton that holds one instance of RenderEngine |
| * and its event queue (on which the GL context runs). The RenderEngine |
| * is created upon the first getInstance(). |
| */ |
| class FrameCaptureProcessor : public AHandler { |
| |
| public: |
| |
| struct Layer : public RefBase { |
| virtual void getLayerSettings( |
| const Rect &sourceCrop, uint32_t textureName, |
| renderengine::LayerSettings *layerSettings) = 0; |
| }; |
| |
| static sp<FrameCaptureProcessor> getInstance(); |
| |
| status_t capture( |
| const sp<Layer> &layer, |
| const Rect &sourceCrop, const sp<GraphicBuffer> &outBuffer); |
| |
| protected: |
| virtual ~FrameCaptureProcessor(); |
| void onMessageReceived(const sp<AMessage> &msg); |
| |
| private: |
| FrameCaptureProcessor(); |
| |
| enum { |
| kWhatCreate, |
| kWhatCapture, |
| }; |
| |
| static Mutex sLock; |
| static sp<FrameCaptureProcessor> sInstance GUARDED_BY(sLock); |
| |
| constexpr static float sDefaultMaxLumiance = 500.0f; |
| |
| status_t mInitStatus; |
| sp<ALooper> mLooper; |
| std::unique_ptr<renderengine::RenderEngine> mRE; |
| uint32_t mTextureName; |
| |
| static status_t PostAndAwaitResponse( |
| const sp<AMessage> &msg, sp<AMessage> *response); |
| static void PostReplyWithError( |
| const sp<AReplyToken> &replyID, status_t err); |
| |
| status_t initCheck() { return mInitStatus; } |
| void createRenderEngine(); |
| |
| // message handlers |
| status_t onCreate(); |
| status_t onCapture(const sp<Layer> &layer, |
| const Rect &sourceCrop, const sp<GraphicBuffer> &outBuffer); |
| |
| DISALLOW_EVIL_CONSTRUCTORS(FrameCaptureProcessor); |
| }; |
| |
| } // namespace android |
| |
| #endif // FRAME_CAPTURE_PROCESSOR_H_ |