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77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
#include "DgoReader.h"
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#include <cstring>
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#include <unordered_set>
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#include <utility>
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#include "BinaryReader.h"
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#include "BitUtils.h"
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#include "dgo_util.h"
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#include "common/link_types.h"
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#include "third-party/json.hpp"
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DgoReader::DgoReader(std::string file_name, const std::vector<u8>& data)
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: m_file_name(std::move(file_name)) {
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BinaryReader reader(data);
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auto header = reader.read<DgoHeader>();
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m_internal_name = header.name;
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std::unordered_set<std::string> all_unique_names;
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// get all obj files...
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for (uint32_t i = 0; i < header.object_count; i++) {
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ObjectHeader obj_header = reader.read<ObjectHeader>();
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if (reader.bytes_left() < obj_header.size && i == header.object_count - 1 &&
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obj_header.size - reader.bytes_left() <= 48) {
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printf(
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"Warning: final file %s in DGO %s has a size missing %d bytes. It will be adjusted from "
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"%d to %d bytes.\n",
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obj_header.name, header.name, obj_header.size - reader.bytes_left(), obj_header.size,
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(int)reader.bytes_left());
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obj_header.size = reader.bytes_left();
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}
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ASSERT(reader.bytes_left() >= obj_header.size);
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assert_string_empty_after(obj_header.name, 60);
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DgoDataEntry entry;
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entry.internal_name = obj_header.name;
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entry.unique_name = get_object_file_name(entry.internal_name, reader.here(), obj_header.size);
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if (all_unique_names.find(entry.unique_name) != all_unique_names.end()) {
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printf("Warning: there are multiple files named %s\n", entry.unique_name.c_str());
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entry.unique_name += '-';
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entry.unique_name += std::to_string(obj_header.size);
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}
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all_unique_names.insert(entry.unique_name);
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entry.data.resize(obj_header.size);
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ASSERT((reader.get_seek() % 16) == 0);
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memcpy(entry.data.data(), reader.here(), obj_header.size);
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m_entries.push_back(entry);
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reader.ffwd(align16(obj_header.size));
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}
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// check we're at the end
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ASSERT(0 == reader.bytes_left());
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ASSERT(all_unique_names.size() == m_entries.size());
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}
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std::string DgoReader::description_as_json() const {
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using namespace nlohmann;
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json j;
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j["file_name"] = m_file_name;
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j["internal_name"] = m_internal_name;
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for (auto& entry : m_entries) {
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json entry_desc;
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entry_desc["unique_name"] = entry.unique_name;
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entry_desc["internal_name"] = entry.internal_name;
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j["objects"].push_back(entry_desc);
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}
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return j.dump(4);
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}
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