/usr/include/mapnik/palette.hpp is in libmapnik-dev 2.2.0+ds1-7+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | /*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2011 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#ifndef MAPNIK_PALETTE_HPP
#define MAPNIK_PALETTE_HPP
// mapnik
#include <mapnik/config.hpp>
#include <mapnik/global.hpp>
#include <mapnik/noncopyable.hpp>
#define USE_DENSE_HASH_MAP
#ifdef USE_DENSE_HASH_MAP
#include <mapnik/sparsehash/dense_hash_map>
typedef google::dense_hash_map<unsigned int, unsigned char> rgba_hash_table;
#else
#include <boost/unordered_map.hpp>
typedef boost::unordered_map<unsigned int, unsigned char> rgba_hash_table;
#endif
// stl
#include <vector>
#ifdef MAPNIK_BIG_ENDIAN
#define U2RED(x) (((x)>>24)&0xff)
#define U2GREEN(x) (((x)>>16)&0xff)
#define U2BLUE(x) (((x)>>8)&0xff)
#define U2ALPHA(x) ((x)&0xff)
#else
#define U2RED(x) ((x)&0xff)
#define U2GREEN(x) (((x)>>8)&0xff)
#define U2BLUE(x) (((x)>>16)&0xff)
#define U2ALPHA(x) (((x)>>24)&0xff)
#endif
namespace mapnik {
typedef boost::uint8_t byte;
struct rgba;
struct rgb {
byte r;
byte g;
byte b;
inline rgb(byte r_, byte g_, byte b_) : r(r_), g(g_), b(b_) {}
rgb(rgba const& c);
inline bool operator==(const rgb& y) const
{
return r == y.r && g == y.g && b == y.b;
}
};
struct rgba
{
byte r;
byte g;
byte b;
byte a;
inline rgba(byte r_, byte g_, byte b_, byte a_)
: r(r_),
g(g_),
b(b_),
a(a_) {}
inline rgba(rgb const& c)
: r(c.r),
g(c.g),
b(c.b),
a(0xFF) {}
inline rgba(unsigned const& c)
: r(U2RED(c)),
g(U2GREEN(c)),
b(U2BLUE(c)),
a(U2ALPHA(c)) {}
inline bool operator==(const rgba& y) const
{
return r == y.r && g == y.g && b == y.b && a == y.a;
}
// ordering by mean(a,r,g,b), a, r, g, b
struct mean_sort_cmp
{
bool operator() (const rgba& x, const rgba& y) const;
};
};
class MAPNIK_DECL rgba_palette : private mapnik::noncopyable {
public:
enum palette_type { PALETTE_RGBA = 0, PALETTE_RGB = 1, PALETTE_ACT = 2 };
explicit rgba_palette(std::string const& pal, palette_type type = PALETTE_RGBA);
rgba_palette();
const std::vector<rgb>& palette() const;
const std::vector<unsigned>& alphaTable() const;
unsigned char quantize(unsigned c) const;
bool valid() const;
std::string to_string() const;
private:
void parse(std::string const& pal, palette_type type);
private:
std::vector<rgba> sorted_pal_;
mutable rgba_hash_table color_hashmap_;
unsigned colors_;
std::vector<rgb> rgb_pal_;
std::vector<unsigned> alpha_pal_;
};
} // namespace mapnik
#endif // MAPNIK_PALETTE_HPP
|