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// 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 <rapidjson/document.h>
#include <string>
#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
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