mirror of https://github.com/bsnes-emu/bsnes.git
53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
auto Icarus::megaDriveManifest(string location) -> string {
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vector<uint8_t> buffer;
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concatenate(buffer, {location, "program.rom"});
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concatenate(buffer, {location, "patch.rom" });
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return megaDriveManifest(buffer, location);
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}
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auto Icarus::megaDriveManifest(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::MegaDrive.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::MegaDrive 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::megaDriveImport(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(), "Mega Drive/", name, ".md/"};
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auto manifest = megaDriveManifest(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, ".sav"}) && !exists({target, "save.ram"})) {
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copy({source, name, ".sav"}, {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(type=ROM)")) {
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auto name = string{rom["content"].text(), ".rom"}.downcase();
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auto size = rom["size"].natural();
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if(size > buffer.size() - offset) {
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missingFiles.append(name);
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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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