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      1 /*
      2  * Copyright (C) 2018 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 STAGEFRIGHT_CODEC2_BQ_BUFFER_PRIV_H_
     18 #define STAGEFRIGHT_CODEC2_BQ_BUFFER_PRIV_H_
     19 
     20 #include <functional>
     21 
     22 #include <C2Buffer.h>
     23 #include <media/stagefright/bqhelper/WGraphicBufferProducer.h>
     24 
     25 class C2BufferQueueBlockPool : public C2BlockPool {
     26 public:
     27     C2BufferQueueBlockPool(const std::shared_ptr<C2Allocator> &allocator, const local_id_t localId);
     28 
     29     virtual ~C2BufferQueueBlockPool() override;
     30 
     31     virtual C2Allocator::id_t getAllocatorId() const override {
     32         return mAllocator->getId();
     33     };
     34 
     35     virtual local_id_t getLocalId() const override {
     36         return mLocalId;
     37     };
     38 
     39     virtual c2_status_t fetchGraphicBlock(
     40             uint32_t width,
     41             uint32_t height,
     42             uint32_t format,
     43             C2MemoryUsage usage,
     44             std::shared_ptr<C2GraphicBlock> *block /* nonnull */) override;
     45 
     46     typedef std::function<void(uint64_t producer, int32_t slot, int64_t nsecs)> OnRenderCallback;
     47 
     48     /**
     49      * Sets render callback.
     50      *
     51      * \param renderCallbak callback to call for all dequeue buffer.
     52      */
     53     void setRenderCallback(const OnRenderCallback &renderCallback = OnRenderCallback());
     54 
     55     /**
     56      * Configures an IGBP in order to create blocks. A newly created block is
     57      * dequeued from the configured IGBP. Unique Id of IGBP and the slot number of
     58      * blocks are passed via native_handle. Managing IGBP is responsibility of caller.
     59      * When IGBP is not configured, block will be created via allocator.
     60      * Since zero is not used for Unique Id of IGBP, if IGBP is not configured or producer
     61      * is configured as nullptr, unique id which is bundled in native_handle is zero.
     62      *
     63      * \param producer      the IGBP, which will be used to fetch blocks
     64      */
     65     virtual void configureProducer(const android::sp<android::HGraphicBufferProducer> &producer);
     66 
     67 private:
     68     const std::shared_ptr<C2Allocator> mAllocator;
     69     const local_id_t mLocalId;
     70 
     71     class Impl;
     72     std::shared_ptr<Impl> mImpl;
     73 
     74     friend struct C2BufferQueueBlockPoolData;
     75 };
     76 
     77 #endif // STAGEFRIGHT_CODEC2_BUFFER_PRIV_H_
     78