mirror of https://github.com/bsnes-emu/bsnes.git
64 lines
2.6 KiB
C++
64 lines
2.6 KiB
C++
auto Icarus::superFamicomManifest(string location) -> string {
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vector<uint8_t> buffer;
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auto files = directory::files(location, "*.rom");
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concatenate(buffer, {location, "program.rom"});
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concatenate(buffer, {location, "data.rom" });
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for(auto& file : files.match("*.program.rom")) concatenate(buffer, {location, file});
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for(auto& file : files.match("*.data.rom" )) concatenate(buffer, {location, file});
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for(auto& file : files.match("*.boot.rom" )) concatenate(buffer, {location, file});
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return superFamicomManifest(buffer, location);
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}
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auto Icarus::superFamicomManifest(vector<uint8_t>& buffer, string location) -> string {
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if(settings["icarus/UseDatabase"].boolean()) {
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auto digest = Hash::SHA256(buffer).digest();
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for(auto game : Database::SuperFamicom.find("game")) {
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if(game["sha256"].text() == digest) return BML::serialize(game);
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}
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}
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if(settings["icarus/UseHeuristics"].boolean()) {
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Heuristics::SuperFamicom game{buffer, location};
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if(auto manifest = game.manifest()) return manifest;
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}
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return {};
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}
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auto Icarus::superFamicomImport(vector<uint8_t>& buffer, string location) -> string {
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auto name = Location::prefix(location);
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auto source = Location::path(location);
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string target{settings["Library/Location"].text(), "Super Famicom/", name, ".sfc/"};
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auto manifest = superFamicomManifest(buffer, location);
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if(!manifest) return failure("failed to parse ROM image");
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if(!create(target)) return failure("library path unwritable");
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if(exists({source, name, ".srm"}) && !exists({target, "save.ram"})) {
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copy({source, name, ".srm"}, {target, "save.ram"});
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}
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if(settings["icarus/CreateManifests"].boolean()) write({target, "manifest.bml"}, manifest);
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uint offset = 0;
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auto document = BML::unserialize(manifest);
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for(auto rom : document.find("game/board/memory")) {
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if(rom["type"].text() != "ROM") continue;
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auto name = string{rom["architecture"].text(), ".", rom["content"].text(), ".rom"}.trimLeft(".", 1L).downcase();
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auto size = rom["size"].natural();
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if(size > buffer.size() - offset) {
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auto firmware = string{rom["identifier"].text(), ".", rom["content"].text(), ".rom"}.trimLeft(".", 1L).downcase();
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auto location = locate({"firmware/", firmware});
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if(location && file::size(location) == size) {
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write({target, name}, file::read(location));
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} else {
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missingFiles.append(firmware);
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}
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continue;
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}
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write({target, name}, buffer.data() + offset, size);
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offset += size;
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}
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if(missingFiles) return failure({"ROM image is missing data: ", missingFiles.merge("; ")});
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return success(target);
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}
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