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Diffstat (limited to 'backend/genesys/buffer.h')
-rw-r--r-- | backend/genesys/buffer.h | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/backend/genesys/buffer.h b/backend/genesys/buffer.h deleted file mode 100644 index e9c889b..0000000 --- a/backend/genesys/buffer.h +++ /dev/null @@ -1,89 +0,0 @@ -/* sane - Scanner Access Now Easy. - - Copyright (C) 2019 Povilas Kanapickas <povilas@radix.lt> - - This file is part of the SANE package. - - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - This program is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, - MA 02111-1307, USA. - - As a special exception, the authors of SANE give permission for - additional uses of the libraries contained in this release of SANE. - - The exception is that, if you link a SANE library with other files - to produce an executable, this does not by itself cause the - resulting executable to be covered by the GNU General Public - License. Your use of that executable is in no way restricted on - account of linking the SANE library code into it. - - This exception does not, however, invalidate any other reasons why - the executable file might be covered by the GNU General Public - License. - - If you submit changes to SANE to the maintainers to be included in - a subsequent release, you agree by submitting the changes that - those changes may be distributed with this exception intact. - - If you write modifications of your own for SANE, it is your choice - whether to permit this exception to apply to your modifications. - If you do not wish that, delete this exception notice. -*/ - -#ifndef BACKEND_GENESYS_BUFFER_H -#define BACKEND_GENESYS_BUFFER_H - -#include <vector> -#include <cstddef> -#include <cstdint> - -namespace genesys { - -/* A FIFO buffer. Note, that this is _not_ a ringbuffer. - if we need a block which does not fit at the end of our available data, - we move the available data to the beginning. -*/ -struct Genesys_Buffer -{ - Genesys_Buffer() = default; - - std::size_t size() const { return buffer_.size(); } - std::size_t avail() const { return avail_; } - std::size_t pos() const { return pos_; } - - // TODO: refactor code that uses this function to no longer use it - void set_pos(std::size_t pos) { pos_ = pos; } - - void alloc(std::size_t size); - void clear(); - - void reset(); - - std::uint8_t* get_write_pos(std::size_t size); - std::uint8_t* get_read_pos(); // TODO: mark as const - - void produce(std::size_t size); - void consume(std::size_t size); - -private: - std::vector<std::uint8_t> buffer_; - // current position in read buffer - std::size_t pos_ = 0; - // data bytes currently in buffer - std::size_t avail_ = 0; -}; - -} // namespace genesys - -#endif // BACKEND_GENESYS_BUFFER_H |