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/*
* Copyright (C) 2021 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.
*/
#pragma once
#include <android/hardware/camera/device/3.4/ICameraDeviceSession.h>
#include <android/hardware/graphics/mapper/2.0/IMapper.h>
#include <android/hardware/graphics/mapper/3.0/IMapper.h>
#include <android/hardware/graphics/mapper/4.0/IMapper.h>
#include "HandleImporter.h"
namespace android::hardware::camera::device::V3_4::implementation {
using ::android::hardware::camera::common::V1_0::helper::HandleImporter;
using ::android::hardware::camera::device::V3_2::StreamBuffer;
using ::android::hardware::graphics::mapper::V2_0::YCbCrLayout;
// Small wrapper for allocating/freeing native handles
class ReleaseFence {
public:
ReleaseFence(int fence_fd);
~ReleaseFence();
native_handle_t* handle() const { return handle_; }
private:
native_handle_t* handle_;
};
// CachedStreamBuffer holds a buffer of camera3 stream.
class CachedStreamBuffer {
public:
CachedStreamBuffer();
CachedStreamBuffer(const StreamBuffer& buffer);
// Not copyable
CachedStreamBuffer(const CachedStreamBuffer&) = delete;
CachedStreamBuffer& operator=(const CachedStreamBuffer&) = delete;
// ...but movable
CachedStreamBuffer(CachedStreamBuffer&& from) noexcept;
CachedStreamBuffer& operator=(CachedStreamBuffer&& from) noexcept;
~CachedStreamBuffer();
bool valid() const { return buffer_ != nullptr; }
uint64_t bufferId() const { return buffer_id_; }
int32_t streamId() const { return stream_id_; }
int acquireFence() const { return acquire_fence_; }
void importFence(const native_handle_t* fence_handle);
// Acquire methods wait first on acquire fence and then return pointers to
// data. Data is nullptr if the wait timed out
YCbCrLayout acquireAsYUV(int32_t width, int32_t height, int timeout_ms);
void* acquireAsBlob(int32_t size, int timeout_ms);
int release();
private:
buffer_handle_t buffer_;
uint64_t buffer_id_;
int32_t stream_id_;
int acquire_fence_;
};
} // namespace android::hardware::camera::device::V3_4::implementation
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