27aff949fb
Move the functionality for the following components to the new base support library: - BoundMethod - EventDispatcher - EventDispatcherPoll - Log - Message - Object - Signal - Semaphore - Thread - Timer While it would be preferable to see these split to move one component per commit, these components are all interdependent upon each other, which leaves us with one big change performing the move for all of them. Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
91 lines
1.9 KiB
C++
91 lines
1.9 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* v4l2_camera.h - V4L2 compatibility camera
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*/
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#ifndef __V4L2_CAMERA_H__
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#define __V4L2_CAMERA_H__
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#include <deque>
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#include <mutex>
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#include <utility>
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#include <libcamera/base/semaphore.h>
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#include <libcamera/buffer.h>
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#include <libcamera/camera.h>
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#include <libcamera/file_descriptor.h>
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#include <libcamera/framebuffer_allocator.h>
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using namespace libcamera;
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class V4L2Camera
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{
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public:
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struct Buffer {
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Buffer(unsigned int index, const FrameMetadata &data)
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: index_(index), data_(data)
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{
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}
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unsigned int index_;
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FrameMetadata data_;
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};
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V4L2Camera(std::shared_ptr<Camera> camera);
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~V4L2Camera();
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int open(StreamConfiguration *streamConfig);
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void close();
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void bind(int efd);
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void unbind();
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std::vector<Buffer> completedBuffers();
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int configure(StreamConfiguration *streamConfigOut,
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const Size &size, const PixelFormat &pixelformat,
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unsigned int bufferCount);
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int validateConfiguration(const PixelFormat &pixelformat,
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const Size &size,
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StreamConfiguration *streamConfigOut);
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int allocBuffers(unsigned int count);
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void freeBuffers();
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FileDescriptor getBufferFd(unsigned int index);
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int streamOn();
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int streamOff();
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int qbuf(unsigned int index);
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void waitForBufferAvailable();
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bool isBufferAvailable();
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bool isRunning();
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private:
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void requestComplete(Request *request);
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std::shared_ptr<Camera> camera_;
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std::unique_ptr<CameraConfiguration> config_;
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bool isRunning_;
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std::mutex bufferLock_;
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FrameBufferAllocator *bufferAllocator_;
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std::vector<std::unique_ptr<Request>> requestPool_;
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std::deque<Request *> pendingRequests_;
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std::deque<std::unique_ptr<Buffer>> completedBuffers_;
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int efd_;
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Mutex bufferMutex_;
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std::condition_variable bufferCV_;
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unsigned int bufferAvailableCount_;
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};
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#endif /* __V4L2_CAMERA_H__ */
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