mirror of
https://github.com/holub/mame
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134 lines
3.2 KiB
C++
134 lines
3.2 KiB
C++
// license:BSD-3-Clause
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// copyright-holders:Ryan Holtz
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//================================================================
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//
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// statereader.cpp - Generic functions for reading state from
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// a JSON file using RapidJSON.
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//
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//================================================================
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#include "statereader.h"
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uint64_t state_reader::get_enum_from_value(const Value& value, std::string name, const uint64_t default_value, const string_to_enum* enums, const int count)
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{
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if (value.HasMember(name.c_str()))
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{
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assert(value[name.c_str()].IsString());
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return get_param_from_string(value[name.c_str()].GetString(), enums, count);
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}
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else
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{
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return default_value;
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}
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}
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uint64_t state_reader::get_param_from_string(std::string value, const string_to_enum* enums, const int count)
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{
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for (int i = 0; i < count; i++)
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{
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if (value == enums[i].m_string)
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{
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return enums[i].m_enum;
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}
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}
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assert(false);
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return 0;
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}
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void state_reader::validate_array_parameter(const Value& value, std::string typeName, std::string paramName, const int count)
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{
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const char* name = paramName.c_str();
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if (value.HasMember(name))
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{
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assert(value[name].IsArray());
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assert(value[name].Size() == count);
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}
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}
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void state_reader::validate_float_parameter(const Value& value, std::string typeName, std::string name)
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{
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if (value.HasMember(name.c_str()))
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{
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assert(value[name.c_str()].IsFloat());
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}
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}
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void state_reader::validate_int_parameter(const Value& value, std::string typeName, std::string name)
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{
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if (value.HasMember(name.c_str()))
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{
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assert(value[name.c_str()].IsInt());
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}
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}
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void state_reader::validate_string_parameter(const Value& value, std::string typeName, std::string name)
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{
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if (value.HasMember(name.c_str()))
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{
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assert(value[name.c_str()].IsString());
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}
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}
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void state_reader::validate_boolean_parameter(const Value& value, std::string typeName, std::string name)
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{
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if (value.HasMember(name.c_str()))
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{
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assert(value[name.c_str()].IsBool());
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}
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}
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bool state_reader::get_bool(const Value& value, const std::string name, const bool default_value)
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{
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if (value.HasMember(name.c_str()))
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{
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return value[name.c_str()].GetBool();
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}
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return default_value;
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}
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int state_reader::get_int(const Value& value, const std::string name, const int default_value)
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{
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if (value.HasMember(name.c_str()))
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{
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return int(floor(value[name.c_str()].GetDouble() + 0.5));
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}
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return default_value;
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}
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void state_reader::get_float(const Value& value, const std::string name, float* out, float* default_value, int count)
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{
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if (value.HasMember(name.c_str()))
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{
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if (count == 1)
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{
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*out = (float) value[name.c_str()].GetDouble();
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return;
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}
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else
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{
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get_vec_values(value[name.c_str()], out, count);
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}
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}
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for (int def = 0; def < count; def++)
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{
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out[def] = default_value[def];
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}
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}
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void state_reader::get_vec_values(const Value& value_array, float* data, const unsigned int count)
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{
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for (unsigned int i = 0; i < count && i < value_array.Size(); i++)
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{
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data[i] = (float) value_array[i].GetDouble();
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}
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}
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std::string state_reader::get_string(const Value& value, const std::string name, const std::string default_value)
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{
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if (value.HasMember(name.c_str()))
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{
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return std::string(value[name.c_str()].GetString());
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}
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return default_value;
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}
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