33d3c4e204
Applications often have to map requests queued to a camera to external resources. To make this easy, add a 64-bit integer cookie to the Request class that is set when the request is created and can be retrieved at any time, especially in the request completion handler. The cookie is completely transparent for libcamera and is never modified. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
68 lines
1.4 KiB
C++
68 lines
1.4 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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* request.h - Capture request handling
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*/
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#ifndef __LIBCAMERA_REQUEST_H__
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#define __LIBCAMERA_REQUEST_H__
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#include <map>
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#include <stdint.h>
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#include <unordered_set>
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#include <libcamera/controls.h>
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#include <libcamera/signal.h>
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namespace libcamera {
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class Buffer;
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class Camera;
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class Stream;
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class Request
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{
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public:
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enum Status {
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RequestPending,
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RequestComplete,
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RequestCancelled,
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};
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Request(Camera *camera, uint64_t cookie = 0);
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Request(const Request &) = delete;
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Request &operator=(const Request &) = delete;
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ControlList &controls() { return controls_; }
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const std::map<Stream *, Buffer *> &buffers() const { return bufferMap_; }
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int setBuffers(const std::map<Stream *, Buffer *> &streamMap);
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Buffer *findBuffer(Stream *stream) const;
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uint64_t cookie() const { return cookie_; }
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Status status() const { return status_; }
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bool hasPendingBuffers() const { return !pending_.empty(); }
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private:
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friend class Camera;
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friend class PipelineHandler;
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int prepare();
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void complete(Status status);
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bool completeBuffer(Buffer *buffer);
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Camera *camera_;
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ControlList controls_;
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std::map<Stream *, Buffer *> bufferMap_;
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std::unordered_set<Buffer *> pending_;
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const uint64_t cookie_;
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Status status_;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_REQUEST_H__ */
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