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 <gui/bufferqueue/1.0/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 
getAllocatorId()31     virtual C2Allocator::id_t getAllocatorId() const override {
32         return mAllocator->getId();
33     };
34 
getLocalId()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     virtual 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