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https://git.libcamera.org/libcamera/libcamera.git
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c20d3f5575
Private members of the FrameBuffer class are split between FrameBuffer and FrameBuffer::Private. There was no real justification for this split, and keeping some members private in the FrameBuffer class causes multiple issues: - Future modifications of the FrameBuffer class without breaking the ABI may be more difficult. - Mutable access to members that should not be modified by applications require a friend statement, or going through the Private class. Move all remaining private members to the Private class to address the first issue, and add a Private::metadata() function to address the second problem. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Tested-by: Naushir Patuck <naush@raspberrypi.com>
77 lines
1.4 KiB
C++
77 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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* framebuffer.h - Frame buffer handling
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*/
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#pragma once
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#include <assert.h>
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#include <limits>
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#include <memory>
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#include <stdint.h>
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#include <vector>
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#include <libcamera/base/class.h>
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#include <libcamera/base/shared_fd.h>
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#include <libcamera/base/span.h>
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namespace libcamera {
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class Fence;
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class Request;
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struct FrameMetadata {
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enum Status {
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FrameSuccess,
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FrameError,
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FrameCancelled,
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};
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struct Plane {
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unsigned int bytesused;
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};
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Status status;
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unsigned int sequence;
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uint64_t timestamp;
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Span<Plane> planes() { return planes_; }
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Span<const Plane> planes() const { return planes_; }
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private:
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friend class FrameBuffer;
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std::vector<Plane> planes_;
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};
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class FrameBuffer final : public Extensible
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{
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LIBCAMERA_DECLARE_PRIVATE()
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public:
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struct Plane {
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static constexpr unsigned int kInvalidOffset = std::numeric_limits<unsigned int>::max();
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SharedFD fd;
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unsigned int offset = kInvalidOffset;
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unsigned int length;
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};
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FrameBuffer(const std::vector<Plane> &planes, unsigned int cookie = 0);
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FrameBuffer(std::unique_ptr<Private> d);
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const std::vector<Plane> &planes() const;
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Request *request() const;
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const FrameMetadata &metadata() const;
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uint64_t cookie() const;
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void setCookie(uint64_t cookie);
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std::unique_ptr<Fence> releaseFence();
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private:
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LIBCAMERA_DISABLE_COPY_AND_MOVE(FrameBuffer)
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};
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} /* namespace libcamera */
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