tiling.hh

Go to the documentation of this file.

/*
* This file is part of rasdaman community.
*
* Rasdaman community 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 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 rasdaman community.  If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
 
#ifndef _R_TILING_HH_
#define _R_TILING_HH_
 
#include "raslib/mddtypes.hh"
 
#include <vector>
#include <iosfwd>
#include <memory>
 
class r_Tiling;
class r_No_Tiling;
class r_Size_Tiling;
class r_Dimension_Tiling;
class r_Minterval;
 
//@ManMemo: Module {\bf rasodmg}
 
class r_Tiling
{
public:
    virtual ~r_Tiling() = default;
 
    virtual void print_status(std::ostream &os) const = 0;
 
    virtual bool is_compatible(const r_Minterval &obj_domain, r_Bytes cellTypeSize) const = 0;
 
    virtual std::vector<r_Minterval> compute_tiles(const r_Minterval &obj_domain, r_Bytes cell_size) const = 0;
    virtual r_Tiling *clone() const = 0;
    virtual r_Tiling_Scheme get_tiling_scheme() const = 0;
    static const char *ASTERIX;
    static const char *TCOLON;
    static const char *TCOMMA;
    static const char *LSQRBRA;
    static const char *RSQRBRA;
    static const int DefaultBase;
    static const r_Bytes defaultTileSize;
 
protected:
    void check_nonempty_tiling(const char *encoded) const;
    void check_premature_stream_end(const char *currPos, const char *endPos) const;
    r_Minterval parse_minterval(const char *encoded) const;
    unsigned int parse_unsigned(const char *encoded) const;
    unsigned long parse_unsigned_long(const char *encoded) const;
    long parse_long(const char *encoded) const;
    double parse_double(const char *encoded) const;
    std::unique_ptr<char[]> copy_buffer(const char *buf, size_t len) const;
    const char *advance_to_next_char(const char *p, const char *search) const;
};
 
class r_No_Tiling : public r_Tiling
{
public:
    explicit r_No_Tiling(const char *encoded);
    r_No_Tiling() = default;
    virtual ~r_No_Tiling() = default;
 
    void print_status(std::ostream &os) const override;
 
    bool is_compatible(const r_Minterval &obj_domain, r_Bytes cellTypeSize) const override;
 
    std::vector<r_Minterval> compute_tiles(const r_Minterval &obj_domain, r_Bytes cellTypeSize) const override;
 
    r_Tiling *clone() const override;
 
    r_Tiling_Scheme get_tiling_scheme() const override;
 
    static const char *description;
};
 
class r_Size_Tiling : public r_Tiling
{
public:
    explicit r_Size_Tiling(const char *encoded);
    r_Size_Tiling(r_Bytes ts = r_Tiling::defaultTileSize);
    virtual ~r_Size_Tiling() = default;
 
    void print_status(std::ostream &os) const override;
 
    bool is_compatible(const r_Minterval &obj_domain, r_Bytes cellTypeSize) const override;
 
    std::vector<r_Minterval> compute_tiles(const r_Minterval &obj_domain, r_Bytes cellTypeSize) const override;
 
    r_Bytes get_tile_size() const;
    r_Tiling *clone() const override;
    r_Tiling_Scheme get_tiling_scheme() const override;
 
    static const char *description;
 
protected:
    r_Bytes tile_size{};
};
 
class r_Dimension_Tiling : public r_Size_Tiling
{
public:
    r_Dimension_Tiling(r_Dimension dim, r_Bytes ts = r_Tiling::defaultTileSize);
    virtual ~r_Dimension_Tiling() = default;
 
    void print_status(std::ostream &os) const override;
    bool is_compatible(const r_Minterval &obj_domain, r_Bytes cellTypeSize) const override;
 
    r_Dimension get_dimension() const;
    std::vector<r_Minterval> compute_tiles(const r_Minterval &obj_domain, r_Bytes cellTypeSize) const override = 0;
    r_Tiling *clone() const override = 0;
 
protected:
    r_Dimension dimension{};
};
 
extern std::ostream &operator<<(std::ostream &os, const r_Tiling &t);
 
#endif