Rename pb_ prefixes to mvt_

mvt.hh

@@ -0,0 +1,63 @@
+bool is_compressed(std::string const &data);
+int decompress(std::string const &input, std::string &output);
+int compress(std::string const &input, std::string &output);
+int dezig(unsigned n);
+
+enum mvt_geometry_type {
+	mvt_point = 1, mvt_linestring = 2, mvt_polygon = 3
+};
+
+enum mvt_operation {
+	mvt_moveto = 1, mvt_lineto = 2, mvt_closepath = 7
+};
+
+enum mvt_value_type {
+	mvt_string, mvt_float, mvt_double, mvt_int, mvt_uint, mvt_sint, mvt_bool
+};
+
+struct mvt_value {
+	mvt_value_type type;
+	std::string string_value;
+	union {
+		float float_value;
+		double double_value;
+		long long int_value;
+		unsigned long long uint_value;
+		long long sint_value;
+		bool bool_value;
+	} numeric_value;
+};
+
+struct mvt_geometry {
+	int /* mvt_operation */ op;
+	long long x;
+	long long y;
+
+	mvt_geometry(int op, long long x, long long y) {
+		this->op = op;
+		this->x = x;
+		this->y = y;
+	}
+};
+
+struct mvt_feature {
+	std::vector<unsigned> tags;
+	int /* mvt_geometry_type */ type;
+	std::vector<mvt_geometry> geometry;
+};
+
+struct mvt_layer {
+	int version;
+	std::string name;
+	std::vector<mvt_feature> features;
+	std::vector<std::string> keys;
+	std::vector<mvt_value> values;
+	int extent;
+};
+
+struct mvt_tile {
+	std::vector<mvt_layer> layers;
+};
+
+bool mvt_decode(std::string &message, mvt_tile &out);
+std::string mvt_encode(mvt_tile &in);