// license:BSD-3-Clause // copyright-holders:Ryan Holtz //================================================================ // // statereader.h - Generic functions for reading state from a // JSON file using RapidJSON. // //================================================================ #pragma once #ifndef DRAWBGFX_STATE_READER #define DRAWBGFX_STATE_READER #include #include #include "osdcore.h" using namespace rapidjson; class state_reader { protected: struct string_to_enum { std::string m_string; const uint64_t m_enum; }; static void validate_array_parameter(const Value& value, std::string type_name, std::string name, const int count); static void validate_float_parameter(const Value& value, std::string type_name, std::string name); static void validate_int_parameter(const Value& value, std::string type_name, std::string name); static void validate_string_parameter(const Value& value, std::string type_name, std::string name); static void validate_boolean_parameter(const Value& value, std::string type_name, std::string name); static bool get_bool(const Value& value, const std::string name, const bool default_value); static float get_float(const Value& value, const std::string name, float default_value); static void get_float(const Value& value, const std::string name, float* out, float* default_value, const int count = 1); static int get_int(const Value& value, const std::string name, int default_value); static std::string get_string(const Value& value, const std::string name, const std::string default_value); static uint64_t get_enum_from_value(const Value& value, std::string name, const uint64_t default_value, const string_to_enum* enums, const int count); static uint64_t get_param_from_string(std::string value, const string_to_enum* enums, const int count); protected: static bool READER_CHECK(bool condition, const char* format, ...) { if (!condition) { va_list ap; va_start(ap, format); char buf[2048]; vsnprintf(buf, 2048, format, ap); osd_printf_error("Error: %s\n", buf); va_end(ap); } return condition; } private: static void get_vec_values(const Value& value_array, float* data, const unsigned int count); }; #endif // DRAWBGFX_STATE_READER