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 <android/hardware/graphics/bufferqueue/2.0/IGraphicBufferProducer.h>
21 
22 #include <C2Buffer.h>
23 
24 #include <functional>
25 
26 class C2BufferQueueBlockPool : public C2BlockPool {
27 public:
28     C2BufferQueueBlockPool(const std::shared_ptr<C2Allocator> &allocator, const local_id_t localId);
29 
30     virtual ~C2BufferQueueBlockPool() override;
31 
getAllocatorId()32     virtual C2Allocator::id_t getAllocatorId() const override {
33         return mAllocator->getId();
34     };
35 
getLocalId()36     virtual local_id_t getLocalId() const override {
37         return mLocalId;
38     };
39 
40     virtual c2_status_t fetchGraphicBlock(
41             uint32_t width,
42             uint32_t height,
43             uint32_t format,
44             C2MemoryUsage usage,
45             std::shared_ptr<C2GraphicBlock> *block /* nonnull */) override;
46 
47     typedef std::function<void(uint64_t producer, int32_t slot, int64_t nsecs)> OnRenderCallback;
48 
49     /**
50      * Sets render callback.
51      *
52      * \param renderCallbak callback to call for all dequeue buffer.
53      */
54     virtual void setRenderCallback(const OnRenderCallback &renderCallback = OnRenderCallback());
55 
56     typedef ::android::hardware::graphics::bufferqueue::V2_0::
57             IGraphicBufferProducer HGraphicBufferProducer;
58     /**
59      * Configures an IGBP in order to create blocks. A newly created block is
60      * dequeued from the configured IGBP. Unique Id of IGBP and the slot number of
61      * blocks are passed via native_handle. Managing IGBP is responsibility of caller.
62      * When IGBP is not configured, block will be created via allocator.
63      * Since zero is not used for Unique Id of IGBP, if IGBP is not configured or producer
64      * is configured as nullptr, unique id which is bundled in native_handle is zero.
65      *
66      * \param producer      the IGBP, which will be used to fetch blocks
67      */
68     virtual void configureProducer(const android::sp<HGraphicBufferProducer> &producer);
69 
70 private:
71     const std::shared_ptr<C2Allocator> mAllocator;
72     const local_id_t mLocalId;
73 
74     class Impl;
75     std::shared_ptr<Impl> mImpl;
76 
77     friend struct C2BufferQueueBlockPoolData;
78 };
79 
80 #endif // STAGEFRIGHT_CODEC2_BUFFER_PRIV_H_
81