// license:BSD-3-Clause // copyright-holders:Ryan Holtz //============================================================== // // sliderreader.cpp - BGFX shader parameter slider JSON reader // //============================================================== #include "sliderreader.h" #include "slider.h" #include "chainmanager.h" const slider_reader::string_to_enum slider_reader::TYPE_NAMES[slider_reader::TYPE_COUNT] = { { "intenum", uint64_t(bgfx_slider::slider_type::SLIDER_INT_ENUM) }, { "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) } }; const slider_reader::string_to_enum slider_reader::SCREEN_NAMES[slider_reader::SCREEN_COUNT] = { { "none", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_NONE) }, { "raster", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_RASTER) }, { "vector", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_VECTOR) }, { "crt", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_VECTOR_OR_RASTER) }, { "vectorraster", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_VECTOR_OR_RASTER) }, { "lcd", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_LCD) }, { "nonvector", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_LCD_OR_RASTER) }, { "lcdraster", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_LCD_OR_RASTER) }, { "lcdvector", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_LCD_OR_VECTOR) }, { "any", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_ANY) }, { "all", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_ANY) } }; std::vector slider_reader::read_from_value(const Value& value, const std::string &prefix, chain_manager& chains, uint32_t screen_index) { std::vector sliders; if (!validate_parameters(value, prefix)) { return sliders; } std::string name = value["name"].GetString(); float step = value["step"].GetFloat(); 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)); bgfx_slider::screen_type screen_type = bgfx_slider::screen_type(get_enum_from_value(value, "screen", uint64_t(bgfx_slider::screen_type::SLIDER_SCREEN_TYPE_ANY), SCREEN_NAMES, SCREEN_COUNT)); std::string format = value["format"].GetString(); std::string description = value["text"].GetString(); std::vector strings; if (value.HasMember("strings")) { const Value& string_array = value["strings"]; for (uint32_t i = 0; i < string_array.Size(); i++) { if (!READER_CHECK(string_array[i].IsString(), "%sSlider '%s': strings[%u]: must be a string\n", prefix, name, i)) { return sliders; } strings.emplace_back(std::string(string_array[i].GetString())); } } int slider_count; switch (type) { case bgfx_slider::slider_type::SLIDER_FLOAT: case bgfx_slider::slider_type::SLIDER_INT: case bgfx_slider::slider_type::SLIDER_INT_ENUM: slider_count = 1; break; case bgfx_slider::slider_type::SLIDER_VEC2: slider_count = 2; break; case bgfx_slider::slider_type::SLIDER_COLOR: slider_count = 3; break; default: slider_count = 0; break; } std::string prefixed_desc = util::string_format("Window %1$u, Screen %2$u, %3$s", chains.window_index(), screen_index, description); if (slider_count > 1) { if (!READER_CHECK(value["min"].IsArray(), "%1$sSlider '%2$s': value 'min' must be an array", prefix, name)) return sliders; if (!READER_CHECK(value["default"].IsArray(), "%1$sSlider '%2$s': value 'default' must be an array", prefix, name)) return sliders; if (!READER_CHECK(value["max"].IsArray(), "%1$sSlider '%2$s': value 'max' must be an array", prefix, name)) return sliders; float min[3]; float defaults[3]; float max[3]; get_values(value, util::string_format("%1$sSlider '%2$s': 'min': ", prefix, name), "min", min, slider_count); get_values(value, util::string_format("%1$sSlider '%2$s': 'default': ", prefix, name), "default", defaults, slider_count); get_values(value, util::string_format("%1$sSlider '%2$s': 'max': ", prefix, name), "max", max, slider_count); for (int index = 0; index < slider_count; index++) { std::string desc; std::string full_name = name + std::to_string(index); switch (index) { case 0: desc = prefixed_desc + (type == bgfx_slider::slider_type::SLIDER_VEC2 ? "X" : "Red"); break; case 1: desc = prefixed_desc + (type == bgfx_slider::slider_type::SLIDER_VEC2 ? "Y" : "Green"); break; case 2: desc = prefixed_desc + (type == bgfx_slider::slider_type::SLIDER_VEC2 ? "Invalid" : "Blue"); break; default: desc = prefixed_desc + "Invalid"; break; } sliders.push_back(new bgfx_slider(chains.machine(), std::move(full_name), min[index], defaults[index], max[index], step, type, screen_type, format, desc, strings)); } } else { const float min = get_float(value, "min", 0.0f); const float def = get_float(value, "default", 0.0f); const float max = get_float(value, "max", 1.0f); sliders.push_back(new bgfx_slider(chains.machine(), name + "0", min, def, max, step, type, screen_type, format, prefixed_desc, strings)); } return sliders; } bool slider_reader::get_values(const Value& value, const std::string &prefix, const std::string &name, float* values, const int count) { const Value& value_array = value[name.c_str()]; for (uint32_t i = 0; i < value_array.Size() && i < count; i++) { if (!READER_CHECK(value_array[i].IsNumber(), "%sEntry %u must be a number\n", prefix, i)) return false; values[i] = value_array[i].GetFloat(); } return true; } bool slider_reader::validate_parameters(const Value& value, const std::string &prefix) { if (!READER_CHECK(value.HasMember("name"), "%1$sMust have string value 'name'", prefix)) return false; if (!READER_CHECK(value["name"].IsString(), "%1$sValue 'name' must be a string", prefix)) return false; if (!READER_CHECK(value.HasMember("min"), "%1$sMust have a number or array value 'min'", prefix)) return false; if (!READER_CHECK(value["min"].IsNumber() || value["min"].IsArray(), "%1$sValue 'min' must be a number or an array the size of the corresponding slider type", prefix)) return false; if (!READER_CHECK(value.HasMember("default"), "%1$sMust have a number or array value 'default'", prefix)) return false; if (!READER_CHECK(value["default"].IsNumber() || value["default"].IsArray(), "%1$sValue 'default' must be a number or an array the size of the corresponding slider type", prefix)) return false; if (!READER_CHECK(value.HasMember("max"), "%1$sMust have a number or array value 'max'", prefix)) return false; if (!READER_CHECK(value["max"].IsNumber() || value["max"].IsArray(), "%1$sValue 'max' must be a number or an array the size of the corresponding slider type", prefix)) return false; if (!READER_CHECK(value.HasMember("step"), "%1$sMust have a number value 'step'", prefix)) return false; if (!READER_CHECK(value["step"].IsNumber(), "%1$sValue 'step' must be a number (how much does this slider increment by internally?)", prefix)) return false; if (!READER_CHECK(value.HasMember("type"), "%1$sMust have string value 'type'", prefix)) return false; if (!READER_CHECK(value["type"].IsString(), "%1$sValue 'type' must be a string (what type of slider is this? [int_enum, int, float])", prefix)) return false; if (!READER_CHECK(value.HasMember("screen"), "%1$sMust have string value 'screen'", prefix)) return false; if (!READER_CHECK(value["screen"].IsString(), "%1$sValue 'screen' must be a string (what type of output device does this slider apply to? [none, raster, vector, crt, lcd, non_vector, any])", prefix)) return false; if (!READER_CHECK(value.HasMember("format"), "%1$sMust have string value 'format'", prefix)) return false; if (!READER_CHECK(value["format"].IsString(), "%1$sValue 'scale' must be a string (how would we display it in a printf?)", prefix)) return false; if (!READER_CHECK(value.HasMember("text"), "%1$sMust have string value 'text'", prefix)) return false; if (!READER_CHECK(value["text"].IsString(), "%1$sValue 'text' must be a string (how would you explain it?)", prefix)) return false; if (!READER_CHECK(!value.HasMember("strings") || value["strings"].IsArray(), "%1$sValue 'strings' must be an array", prefix)) return false; return true; }