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auto Icarus::famicomManifest(string location) -> string {
vector<uint8_t> buffer;
concatenate(buffer, {location, "ines.rom"});
concatenate(buffer, {location, "program.rom"});
concatenate(buffer, {location, "character.rom"});
return famicomManifest(buffer, location);
}
auto Icarus::famicomManifest(vector<uint8_t>& buffer, string location, uint* prgrom, uint* chrrom) -> string {
string markup;
string digest = Hash::SHA256(buffer.data(), buffer.size()).digest();
if(settings["icarus/UseDatabase"].boolean() && !markup) {
for(auto node : database.famicom) {
if(node["sha256"].text() == digest) {
markup.append(node.text(), "\n sha256: ", digest, "\n");
break;
}
}
}
if(settings["icarus/UseHeuristics"].boolean() && !markup) {
FamicomCartridge cartridge{buffer.data(), buffer.size()};
if(markup = cartridge.markup) {
markup.append("\n");
markup.append("information\n");
markup.append(" title: ", Location::prefix(location), "\n");
markup.append(" sha256: ", digest, "\n");
markup.append(" note: ", "heuristically generated by icarus\n");
}
}
auto document = BML::unserialize(markup);
if(prgrom) *prgrom = document["board/prg/rom/size"].natural(); //0 if node does not exist
if(chrrom) *chrrom = document["board/chr/rom/size"].natural(); //0 if node does not exist
return markup;
}
auto Icarus::famicomImport(vector<uint8_t>& buffer, string location) -> string {
auto name = Location::prefix(location);
auto source = Location::path(location);
string target{settings["Library/Location"].text(), "Famicom/", name, ".fc/"};
uint prgrom = 0;
uint chrrom = 0;
auto markup = famicomManifest(buffer, location, &prgrom, &chrrom);
if(!markup) return failure("failed to parse ROM image");
if(!create(target)) return failure("library path unwritable");
if(exists({source, name, ".sav"}) && !exists({target, "save.ram"})) {
copy({source, name, ".sav"}, {target, "save.ram"});
}
if(settings["icarus/CreateManifests"].boolean()) write({target, "manifest.bml"}, markup);
write({target, "ines.rom"}, buffer.data(), 16);
write({target, "program.rom"}, buffer.data() + 16, prgrom);
if(!chrrom) return success(target);
write({target, "character.rom"}, buffer.data() + 16 + prgrom, chrrom);
return success(target);
}
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