// license:BSD-3-Clause // copyright-holders:Ryan Holtz //============================================================== // // sliderreader.cpp - BGFX shader parameter slider JSON reader // //============================================================== #include "emu.h" #include "sliderreader.h" #include "slider.h" const slider_reader::string_to_enum slider_reader::TYPE_NAMES[slider_reader::TYPE_COUNT] = { { "bool", uint64_t(bgfx_slider::slider_type::SLIDER_BOOL) }, { "float", uint64_t(bgfx_slider::slider_type::SLIDER_FLOAT) }, { "int", uint64_t(bgfx_slider::slider_type::SLIDER_INT) }, { "color", uint64_t(bgfx_slider::slider_type::SLIDER_COLOR) }, { "vec2", uint64_t(bgfx_slider::slider_type::SLIDER_VEC2) } }; bgfx_slider* slider_reader::read_from_value(const Value& value) { validate_parameters(value); bgfx_slider::slider_type type = bgfx_slider::slider_type(get_enum_from_value(value, "type", uint64_t(bgfx_slider::slider_type::SLIDER_FLOAT), TYPE_NAMES, TYPE_COUNT)); std::string name = value["name"].GetString(); std::string description = value["text"].GetString(); float defaults[4]; float min[4]; float max[4]; get_values(value, "default", defaults); get_values(value, "min", min); get_values(value, "max", max); return new bgfx_slider(type, name, description, defaults, min, max); } void slider_reader::get_values(const Value& value, std::string name, float* values) { const char* name_str = name.c_str(); if (value.HasMember(name_str)) { if (value[name_str].IsBool()) { values[0] = value[name_str].GetBool() ? 1.0f : 0.0f; } else if (value[name_str].IsDouble()) { values[0] = float(value[name_str].GetDouble()); } else { const Value& value_array = value[name_str]; for (UINT32 i = 0; i < value_array.Size() && i < 4; i++) { values[i] = float(value_array[i].GetDouble()); } } } } void slider_reader::validate_parameters(const Value& value) { assert(value.HasMember("type")); assert(value["type"].IsString()); assert(value.HasMember("name")); assert(value["name"].IsString()); assert(value.HasMember("text")); assert(value["text"].IsString()); assert(value.HasMember("default")); }