bsnes/higan/emulator/game.hpp

111 lines
2.9 KiB
C++

#pragma once
namespace Emulator {
struct Game {
struct Memory;
struct Oscillator;
inline auto load(string_view) -> void;
inline auto memory(Markup::Node) -> maybe<Memory>;
inline auto oscillator(natural = 0) -> maybe<Oscillator>;
struct Memory {
Memory() = default;
inline Memory(Markup::Node);
explicit operator bool() const { return type; }
inline auto name() const -> string;
string type;
natural size;
string content;
string manufacturer;
string architecture;
string identifier;
boolean nonVolatile;
};
struct Oscillator {
Oscillator() = default;
inline Oscillator(Markup::Node);
explicit operator bool() const { return frequency; }
natural frequency;
};
Markup::Node document;
string sha256;
string label;
string name;
string region;
string revision;
string board;
vector<Memory> memoryList;
vector<Oscillator> oscillatorList;
};
auto Game::load(string_view text) -> void {
document = BML::unserialize(text);
sha256 = document["game/sha256"].text();
label = document["game/label"].text();
name = document["game/name"].text();
region = document["game/region"].text();
revision = document["game/revision"].text();
board = document["game/board"].text();
for(auto node : document.find("game/board/memory")) {
memoryList.append(Memory{node});
}
for(auto node : document.find("game/board/oscillator")) {
oscillatorList.append(Oscillator{node});
}
}
auto Game::memory(Markup::Node node) -> maybe<Memory> {
if(!node) return nothing;
for(auto& memory : memoryList) {
auto type = node["type"].text();
auto size = node["size"].natural();
auto content = node["content"].text();
auto manufacturer = node["manufacturer"].text();
auto architecture = node["architecture"].text();
auto identifier = node["identifier"].text();
if(type && type != memory.type) continue;
if(size && size != memory.size) continue;
if(content && content != memory.content) continue;
if(manufacturer && manufacturer != memory.manufacturer) continue;
if(architecture && architecture != memory.architecture) continue;
if(identifier && identifier != memory.identifier) continue;
return memory;
}
return nothing;
}
auto Game::oscillator(natural index) -> maybe<Oscillator> {
if(index < oscillatorList.size()) return oscillatorList[index];
return nothing;
}
Game::Memory::Memory(Markup::Node node) {
type = node["type"].text();
size = node["size"].natural();
content = node["content"].text();
manufacturer = node["manufacturer"].text();
architecture = node["architecture"].text();
identifier = node["identifier"].text();
nonVolatile = !(bool)node["volatile"];
}
auto Game::Memory::name() const -> string {
if(architecture) return string{architecture, ".", content, ".", type}.downcase();
return string{content, ".", type}.downcase();
}
Game::Oscillator::Oscillator(Markup::Node node) {
frequency = node["frequency"].natural();
}
}