DarkflameServer/dCommon/BrickByBrickFix.cpp
EmosewaMC 8cd7526dae Add Sd0Conversion
Add brick by brick conversion commands with 2 parameters to tell the program what to do with the data.

Add zlib -> sd0 conversion.  Files look good at a glance but should be tested in game to ensure stability.  Tests to come.
2022-08-19 01:58:50 -07:00

89 lines
3.1 KiB
C++

#include <sstream>
#include <memory>
#include "BrickByBrickFix.h"
#include "Database.h"
#include "dLogger.h"
#include "Game.h"
//! Forward declarations
std::unique_ptr<sql::ResultSet> GetModelsFromDatabase();
void WriteSd0Magic(char* input);
uint32_t BrickByBrickFix::TruncateBrokenBrickByBrickXml() {
auto modelsToTruncate = GetModelsFromDatabase();
if (modelsToTruncate->next()) {
// Decompress with zlib and attempt to convert to xml. If that fails this model is broken.
}
return 0;
}
uint32_t BrickByBrickFix::UpdateBrickByBrickModelsToSd0() {
uint32_t updatedModels = 0;
auto modelsToUpdate = GetModelsFromDatabase();
auto previousAutoCommitState = Database::GetAutoCommit();
Database::SetAutoCommit(false);
std::unique_ptr<sql::PreparedStatement> insertionStatement(Database::CreatePreppedStmt("UPDATE ugc SET lxfml = ? WHERE id = ?;"));
while (modelsToUpdate->next()) {
uint32_t modelId = modelsToUpdate->getInt(1);
auto oldLxfml = modelsToUpdate->getBlob(2);
// Check if the stored blob starts with zlib magic (0x78). If it does, convert it to sd0.
if (oldLxfml->get() == 0x78) {
Game::logger->Log("BrickByBrickFix", "Updating model %i", modelId);
// Get and save size of zlib compressed chunk.
oldLxfml->seekg(0, std::ios::end);
uint32_t oldLxfmlSize = static_cast<uint32_t>(oldLxfml->tellg());
oldLxfml->seekg(0);
// Allocate 9 extra bytes. 5 for sd0 magic, 4 for the only zlib compressed size.
uint32_t oldLxfmlSizeWithHeader = oldLxfmlSize + 9;
char* sd0ConvertedModel = static_cast<char*>(std::malloc(oldLxfmlSizeWithHeader));
WriteSd0Magic(sd0ConvertedModel);
// zlib compressed chunk size
sd0ConvertedModel[5] = static_cast<uint8_t>(oldLxfmlSize);
sd0ConvertedModel[6] = static_cast<uint8_t>(oldLxfmlSize >> 8U);
sd0ConvertedModel[7] = static_cast<uint8_t>(oldLxfmlSize >> 16U);
sd0ConvertedModel[8] = static_cast<uint8_t>(oldLxfmlSize >> 24U);
for (uint32_t i = 9; i < oldLxfmlSizeWithHeader; i++) {
sd0ConvertedModel[i] = oldLxfml->get();
}
std::string outputString(sd0ConvertedModel, oldLxfmlSizeWithHeader);
std::istringstream outputStringStream(outputString);
insertionStatement->setBlob(1, static_cast<std::istream*>(&outputStringStream));
insertionStatement->setInt(2, modelId);
try {
insertionStatement->executeUpdate();
Game::logger->Log("BrickByBrickFix", "Updated model %i", modelId);
updatedModels++;
} catch (sql::SQLException exception) {
Game::logger->Log(
"BrickByBrickFix",
"Failed to update model %i. This model should be inspected manually to see why."
"The database error is %s", modelId, exception.what());
}
free(sd0ConvertedModel);
}
}
Database::Commit();
Database::SetAutoCommit(previousAutoCommitState);
return updatedModels;
}
std::unique_ptr<sql::ResultSet> GetModelsFromDatabase() {
std::unique_ptr<sql::PreparedStatement> modelsRawDataQuery(Database::CreatePreppedStmt("SELECT id, lxfml FROM ugc;"));
return std::unique_ptr<sql::ResultSet>(modelsRawDataQuery->executeQuery());
}
void WriteSd0Magic(char* input) {
input[0] = 's';
input[1] = 'd';
input[2] = '0';
input[3] = 0x01;
input[4] = 0xFF;
}