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// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
//============================================================
//
// chainreader.cpp - BGFX chain JSON reader
//
//============================================================
#include <string>
#include <vector>
#include <map>
#include <modules/lib/osdobj_common.h>
#include "chainreader.h"
#include "chain.h"
#include "sliderreader.h"
#include "paramreader.h"
#include "chainentryreader.h"
#include "targetreader.h"
#include "targetmanager.h"
#include "slider.h"
#include "parameter.h"
bgfx_chain* chain_reader::read_from_value(const Value& value, std::string prefix, osd_options& options, running_machine& machine, uint32_t window_index, uint32_t screen_index, texture_manager& textures, target_manager& targets, effect_manager& effects)
{
if (!validate_parameters(value, prefix))
{
return nullptr;
}
std::string name = value["name"].GetString();
std::string author = value["author"].GetString();
// Parse sliders
std::vector<bgfx_slider*> sliders;
if (value.HasMember("sliders"))
{
const Value& slider_array = value["sliders"];
for (UINT32 i = 0; i < slider_array.Size(); i++)
{
std::vector<bgfx_slider*> expanded_sliders = slider_reader::read_from_value(slider_array[i], prefix + "sliders[" + std::to_string(i) + "]: ", machine, window_index, screen_index);
if (expanded_sliders.size() == 0)
{
return nullptr;
}
for (bgfx_slider* slider : expanded_sliders)
{
sliders.push_back(slider);
}
}
}
// Map sliders
std::map<std::string, bgfx_slider*> slider_map;
for (bgfx_slider* slider : sliders)
{
slider_map[slider->name()] = slider;
}
// Parse parameters
std::vector<bgfx_parameter*> parameters;
if (value.HasMember("parameters"))
{
const Value& param_array = value["parameters"];
for (UINT32 i = 0; i < param_array.Size(); i++)
{
bgfx_parameter* parameter = parameter_reader::read_from_value(param_array[i], prefix + "parameters[" + std::to_string(i) + "]; ", window_index);
if (parameter == nullptr)
{
return nullptr;
}
parameters.push_back(parameter);
}
}
// Map parameters
std::map<std::string, bgfx_parameter*> param_map;
for (bgfx_parameter* param : parameters)
{
param_map[param->name()] = param;
}
// Create targets
if (value.HasMember("targets"))
{
const Value& target_array = value["targets"];
// TODO: Move into its own reader
for (UINT32 i = 0; i < target_array.Size(); i++)
{
if (!target_reader::read_from_value(target_array[i], prefix + "targets[" + std::to_string(i) + "]: ", targets, options, screen_index))
{
return nullptr;
}
}
}
// Parse chain entries
std::vector<bgfx_chain_entry*> entries;
if (value.HasMember("passes"))
{
const Value& entry_array = value["passes"];
for (UINT32 i = 0; i < entry_array.Size(); i++)
{
bgfx_chain_entry* entry = chain_entry_reader::read_from_value(entry_array[i], prefix + "passes[" + std::to_string(i) + "]: ", options, textures, targets, effects, slider_map, param_map, screen_index);
if (entry == nullptr)
{
return nullptr;
}
entries.push_back(entry);
}
}
return new bgfx_chain(name, author, sliders, parameters, entries);
}
bool chain_reader::validate_parameters(const Value& value, std::string prefix)
{
if (!READER_CHECK(value.HasMember("name"), (prefix + "Must have string value 'name'\n").c_str())) return false;
if (!READER_CHECK(value["name"].IsString(), (prefix + "Value 'name' must be a string\n").c_str())) return false;
if (!READER_CHECK(value.HasMember("author"), (prefix + "Must have string value 'author'\n").c_str())) return false;
if (!READER_CHECK(value["author"].IsString(), (prefix + "Value 'author' must be a string\n").c_str())) return false;
if (!READER_CHECK(value.HasMember("passes"), (prefix + "Must have array value 'passes'\n").c_str())) return false;
if (!READER_CHECK(value["passes"].IsArray(), (prefix + "Value 'passes' must be an array\n").c_str())) return false;
if (!READER_CHECK(!value.HasMember("sliders") || value["sliders"].IsArray(), (prefix + "Value 'sliders' must be an array\n").c_str())) return false;
if (!READER_CHECK(!value.HasMember("parameters") || value["parameters"].IsArray(), (prefix + "Value 'parameters' must be an array\n").c_str())) return false;
if (!READER_CHECK(!value.HasMember("targets") || value["targets"].IsArray(), (prefix + "Value 'targets' must be an array\n").c_str())) return false;
return true;
}
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