prjpeppercorn/libgm/include/Bitstream.hpp

72 lines
1.9 KiB
C++

/*
* prjpeppercorn -- GateMate FPGAs Bitstream Documentation and Tools
*
* Copyright (C) 2024 The Project Peppercorn Authors.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifndef LIBGATEMATE_BITSTREAM_HPP
#define LIBGATEMATE_BITSTREAM_HPP
#include <cstdint>
#include <iostream>
#include <memory>
#include <map>
#include <stdexcept>
#include <string>
#include <vector>
namespace GateMate {
class Chip;
class Bitstream
{
public:
static Bitstream read(std::istream &in);
// Serialise a Chip back to a bitstream
static Bitstream serialise_chip(const Chip &chip, const std::map<std::string, std::string> options);
// Deserialise a bitstream to a Chip
Chip deserialise_chip();
void write_bit(std::ostream &out);
int determine_size(int *max_die_x, int *max_die_y);
private:
Bitstream(const std::vector<uint8_t> &data);
// Bitstream raw data
std::vector<uint8_t> data;
};
class BitstreamParseError : std::runtime_error
{
public:
explicit BitstreamParseError(const std::string &desc);
BitstreamParseError(const std::string &desc, size_t offset);
const char *what() const noexcept override;
private:
std::string desc;
int offset;
};
} // namespace GateMate
#endif // LIBGATEMATE_BITSTREAM_HPP