d6d4710d04
Implement the D-Pointer design pattern in the FrameBuffer class to allow changing internal data without affecting the public ABI. Move the request_ field and the setRequest() function to the FrameBuffer::Private class. This allows hiding the setRequest() function from the public API, removing one todo item. More fields may be moved later. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
66 lines
1.2 KiB
C++
66 lines
1.2 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2020, Google Inc.
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*
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* framebuffer.h - Internal frame buffer handling
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*/
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#ifndef __LIBCAMERA_INTERNAL_FRAMEBUFFER_H__
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#define __LIBCAMERA_INTERNAL_FRAMEBUFFER_H__
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#include <sys/mman.h>
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#include <vector>
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#include <libcamera/base/class.h>
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#include <libcamera/base/span.h>
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#include <libcamera/framebuffer.h>
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namespace libcamera {
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class MappedBuffer
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{
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public:
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using Plane = Span<uint8_t>;
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~MappedBuffer();
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MappedBuffer(MappedBuffer &&other);
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MappedBuffer &operator=(MappedBuffer &&other);
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bool isValid() const { return error_ == 0; }
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int error() const { return error_; }
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const std::vector<Plane> &maps() const { return maps_; }
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protected:
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MappedBuffer();
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int error_;
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std::vector<Plane> maps_;
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private:
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LIBCAMERA_DISABLE_COPY(MappedBuffer)
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};
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class MappedFrameBuffer : public MappedBuffer
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{
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public:
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MappedFrameBuffer(const FrameBuffer *buffer, int flags);
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};
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class FrameBuffer::Private : public Extensible::Private
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{
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LIBCAMERA_DECLARE_PUBLIC(FrameBuffer)
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public:
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Private(FrameBuffer *buffer);
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void setRequest(Request *request) { request_ = request; }
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private:
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Request *request_;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_INTERNAL_FRAMEBUFFER_H__ */
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