mirror of https://github.com/bsnes-emu/bsnes.git
86 lines
3.6 KiB
C++
86 lines
3.6 KiB
C++
auto Icarus::superFamicomManifest(string location) -> string {
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vector<uint8> 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("slot-*.rom" )) concatenate(buffer, {location, file});
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for(auto& file : files.match("*.boot.rom" )) concatenate(buffer, {location, file});
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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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return superFamicomManifest(buffer, location);
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}
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auto Icarus::superFamicomManifest(vector<uint8>& buffer, string location, bool* firmwareAppended) -> string {
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string markup;
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string digest = Hash::SHA256(buffer.data(), buffer.size()).digest();
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if(settings["icarus/UseDatabase"].boolean() && !markup) {
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for(auto node : database.superFamicom) {
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if(node["sha256"].text() == digest) {
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markup.append(node.text(), "\n sha256: ", digest, "\n");
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break;
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}
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}
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}
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if(settings["icarus/UseHeuristics"].boolean() && !markup) {
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bool hasMSU1 = file::exists({location, "msu1.rom"});
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SuperFamicomCartridge cartridge{buffer.data(), buffer.size(), hasMSU1};
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if(markup = cartridge.markup) {
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if(firmwareAppended) *firmwareAppended = cartridge.firmware_appended;
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markup.append("\n");
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markup.append("information\n");
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markup.append(" region: ", cartridge.region == SuperFamicomCartridge::Region::NTSC ? "NTSC" : "PAL", "\n");
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markup.append(" title: ", prefixname(location), "\n");
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markup.append(" sha256: ", digest, "\n");
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markup.append(" note: ", "heuristically generated by icarus\n");
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}
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}
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return markup;
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}
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auto Icarus::superFamicomManifestScan(vector<Markup::Node>& roms, Markup::Node node) -> void {
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if(node["name"].text().endsWith(".rom")) roms.append(node);
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for(auto leaf : node) superFamicomManifestScan(roms, leaf);
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}
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auto Icarus::superFamicomImport(vector<uint8>& buffer, string location) -> string {
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auto name = prefixname(location);
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auto source = pathname(location);
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string target{settings["Library/Location"].text(), "Super Famicom/", name, ".sfc/"};
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//if(directory::exists(target)) return failure("game already exists");
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bool firmwareAppended = true;
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auto markup = superFamicomManifest(buffer, location, &firmwareAppended);
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if(!markup) return failure("failed to parse ROM image");
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auto document = BML::unserialize(markup);
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vector<Markup::Node> roms;
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superFamicomManifestScan(roms, document["board"]);
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for(auto rom : roms) {
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auto name = rom["name"].text();
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auto size = rom["size"].natural();
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if(name == "program.rom" || name == "data.rom" || firmwareAppended) continue;
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if(file::size({source, name}) != size) return failure({"firmware (", name, ") missing or invalid"});
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}
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if(!directory::create(target)) return failure("library path unwritable");
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if(settings["icarus/CreateManifests"].boolean()) file::write({target, "manifest.bml"}, markup);
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uint offset = (buffer.size() & 0x7fff) == 512 ? 512 : 0; //skip header if present
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for(auto rom : roms) {
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auto name = rom["name"].text();
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auto size = rom["size"].natural();
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if(name == "program.rom" || name == "data.rom" || firmwareAppended) {
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if(size > buffer.size() - offset) return failure("ROM image is missing data");
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file::write({target, name}, buffer.data() + offset, size);
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offset += size;
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} else {
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auto firmware = file::read({source, name});
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file::write({target, name}, firmware);
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}
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}
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return success(target);
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}
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