libcamera v0.7.2 Supporting cameras in Linux since 2019

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framebuffer.h
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1/* SPDX-License-Identifier: LGPL-2.1-or-later */
2/*
3 * Copyright (C) 2020, Google Inc.
4 *
5 * Internal frame buffer handling
6 */
7
8#pragma once
9
10#include <memory>
11#include <stdint.h>
12#include <utility>
13
14#include <libcamera/base/class.h>
15#include <libcamera/base/span.h>
16
17#include <libcamera/fence.h>
18#include <libcamera/framebuffer.h>
19
20 namespace libcamera {
21
22 class FrameBuffer::Private : public Extensible::Private
23{
24 LIBCAMERA_DECLARE_PUBLIC(FrameBuffer)
25
26 public:
27 Private(Span<const Plane> planes, uint64_t cookie = 0);
28 virtual ~Private();
29
30 void setRequest(Request *request) { request_ = request; }
31 bool isContiguous() const { return isContiguous_; }
32
33 Fence *fence() const { return fence_.get(); }
34 void setFence(std::unique_ptr<Fence> fence) { fence_ = std::move(fence); }
35
36 void cancel() { metadata_.status = FrameMetadata::FrameCancelled; }
37
38 FrameMetadata &metadata() { return metadata_; }
39
40 private:
41 std::vector<Plane> planes_;
42 FrameMetadata metadata_;
43 uint64_t cookie_;
44
45 std::unique_ptr<Fence> fence_;
46 Request *request_;
47 bool isContiguous_;
48};
49
50} /* namespace libcamera */
class.h
Utilities to help constructing class interfaces.
LIBCAMERA_DECLARE_PUBLIC
#define LIBCAMERA_DECLARE_PUBLIC(klass)
Declare public data for a private class.
Definition class.h:57
libcamera::Extensible::Private
Base class for private data managed through a d-pointer.
Definition class.h:65
libcamera::Extensible::Private::Private
Private()
Construct an instance of an Extensible class private data.
Definition class.cpp:194
libcamera::Fence
Synchronization primitive to manage resources.
Definition fence.h:16
libcamera::FrameBuffer::Private
Base class for FrameBuffer private data.
Definition framebuffer.h:23
libcamera::FrameBuffer::Private::Private
Private(Span< const Plane > planes, uint64_t cookie=0)
Construct a FrameBuffer::Private instance.
Definition framebuffer.cpp:133
libcamera::FrameBuffer::Private::fence
Fence * fence() const
Retrieve a const pointer to the Fence.
Definition framebuffer.h:33
libcamera::FrameBuffer::Private::cancel
void cancel()
Marks the buffer as cancelled.
Definition framebuffer.h:36
libcamera::FrameBuffer::Private::isContiguous
bool isContiguous() const
Check if the frame buffer stores planes contiguously in memory.
Definition framebuffer.h:31
libcamera::FrameBuffer::Private::setFence
void setFence(std::unique_ptr< Fence > fence)
Move a fence in this buffer.
Definition framebuffer.h:34
libcamera::FrameBuffer::Private::setRequest
void setRequest(Request *request)
Set the request this buffer belongs to.
Definition framebuffer.h:30
libcamera::FrameBuffer::Private::metadata
FrameMetadata & metadata()
Retrieve the dynamic metadata.
Definition framebuffer.h:38
libcamera::FrameBuffer::request
Request * request() const
Retrieve the request this buffer belongs to.
Definition framebuffer.cpp:380
libcamera::FrameBuffer::planes
Span< const Plane > planes() const
Retrieve the static plane descriptors.
Definition framebuffer.cpp:362
libcamera::FrameBuffer::FrameBuffer
FrameBuffer(Span< const Plane > planes, unsigned int cookie=0)
Construct a FrameBuffer with an array of planes.
Definition framebuffer.cpp:312
libcamera::FrameBuffer::cookie
uint64_t cookie() const
Retrieve the cookie.
Definition framebuffer.cpp:399
libcamera::Request
A frame capture request.
Definition request.h:30
fence.h
Definition of the Fence class.
framebuffer.h
Frame buffer handling.
libcamera
Top-level libcamera namespace.
Definition backtrace.h:17
libcamera::FrameMetadata
Metadata related to a captured frame.
Definition framebuffer.h:24
libcamera::FrameMetadata::FrameCancelled
@ FrameCancelled
Definition framebuffer.h:28