mirror of
https://github.com/holub/mame
synced 2025-10-04 08:28:39 +03:00
66 lines
2.6 KiB
C++
66 lines
2.6 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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// paramreader.cpp - BGFX shader parameter JSON reader
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//
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//============================================================
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#include <string>
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#include "paramreader.h"
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#include "parameter.h"
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#include "frameparameter.h"
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#include "windowparameter.h"
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#include "timeparameter.h"
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const parameter_reader::string_to_enum parameter_reader::TYPE_NAMES[parameter_reader::TYPE_COUNT] = {
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{ "frame", bgfx_parameter::parameter_type::PARAM_FRAME },
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{ "window", bgfx_parameter::parameter_type::PARAM_WINDOW },
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{ "time", bgfx_parameter::parameter_type::PARAM_TIME }
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};
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bgfx_parameter* parameter_reader::read_from_value(const Value& value, std::string prefix, uint32_t window_index)
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{
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if (!validate_parameters(value, prefix))
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{
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return nullptr;
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}
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std::string name = value["name"].GetString();
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bgfx_parameter::parameter_type type = bgfx_parameter::parameter_type(get_enum_from_value(value, "type", bgfx_parameter::parameter_type::PARAM_FRAME, TYPE_NAMES, TYPE_COUNT));
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if (type == bgfx_parameter::parameter_type::PARAM_FRAME)
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{
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uint32_t period = int(value["period"].GetDouble());
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return new bgfx_frame_parameter(name, type, period);
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}
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else if (type == bgfx_parameter::parameter_type::PARAM_WINDOW)
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{
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return new bgfx_window_parameter(name, type, window_index);
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}
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else if (type == bgfx_parameter::parameter_type::PARAM_TIME)
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{
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float limit = float(value["limit"].GetDouble());
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return new bgfx_time_parameter(name, type, limit);
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}
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else
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{
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READER_CHECK(false, (prefix + "Unknown parameter type '" + std::string(value["type"].GetString()) + "'\n").c_str());
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}
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return nullptr;
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}
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bool parameter_reader::validate_parameters(const Value& value, std::string prefix)
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{
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if (!READER_CHECK(value.HasMember("name"), (prefix + "Must have string value 'name'\n").c_str())) return false;
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if (!READER_CHECK(value["name"].IsString(), (prefix + "Value 'name' must be a string\n").c_str())) return false;
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if (!READER_CHECK(value.HasMember("type"), (prefix + "Must have string value 'type'\n").c_str())) return false;
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if (!READER_CHECK(value["type"].IsString(), (prefix + "Value 'type' must be a string\n").c_str())) return false;
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if (!READER_CHECK(!value.HasMember("period") || value["period"].IsNumber(), (prefix + "Value 'period' must be numeric\n").c_str())) return false;
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if (!READER_CHECK(!value.HasMember("limit") || value["limit"].IsNumber(), (prefix + "Value 'period' must be numeric\n").c_str())) return false;
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return true;
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}
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