void Decompiler::writeSubRoutine(Common::WriteStream &out, const NWScript::SubRoutine &subRoutine) {
out.writeString("\n");
out.writeString(formatSignature(subRoutine, _ncs->getGame(), true));
out.writeString(" {\n");
// TODO: local sub routine variables
if (!subRoutine.blocks.empty())
writeBlock(out, subRoutine.blocks.front(), 1);
out.writeString("}\n");
}
void Decompiler::writeIfControl(Common::WriteStream &out, const ControlStructure &control, size_t indent) {
writeIndent(out, indent);
const Variable *cond = control.ifCond->instructions.back()->variables[0];
out.writeString("if (");
out.writeString(formatVariableName(cond));
out.writeString(") {\n");
if (control.ifTrue)
writeBlock(out, control.ifTrue, indent + 1);
writeIndent(out, indent);
out.writeString("}");
if (control.ifElse) {
out.writeString(" else {\n");
writeBlock(out, control.ifElse, indent + 1);
writeIndent(out, indent);
out.writeString("}");
}
out.writeString("\n");
if (control.ifNext)
writeBlock(out, control.ifNext, indent);
}
void TwoDAFile::writeCSV(Common::WriteStream &out) const {
// Write column headers
for (size_t i = 0; i < _headers.size(); i++) {
const bool needQuote = _headers[i].contains(',');
if (needQuote)
out.writeByte('"');
out.writeString(_headers[i]);
if (needQuote)
out.writeByte('"');
if (i < (_headers.size() - 1))
out.writeByte(',');
}
out.writeByte('\n');
// Write array
for (size_t i = 0; i < _rows.size(); i++) {
for (size_t j = 0; j < _rows[i]->_data.size(); j++) {
const bool needQuote = _rows[i]->_data[j].contains(',');
if (needQuote)
out.writeByte('"');
if (_rows[i]->_data[j] != "****")
out.writeString(_rows[i]->_data[j]);
if (needQuote)
out.writeByte('"');
if (j < (_rows[i]->_data.size() - 1))
out.writeByte(',');
}
out.writeByte('\n');
}
out.flush();
}
void Decompiler::createNSS(Common::WriteStream &out) {
_ncs->analyzeStack();
_ncs->analyzeControlFlow();
out.writeString("// Decompiled using ncsdecomp");
const Stack &stack = _ncs->getGlobals();
out.writeString("\n\n");
for (const auto &global : stack) {
out.writeString(getVariableTypeName(global.variable->type, _ncs->getGame()));
out.writeString(" " + formatVariableName(global.variable));
out.writeString(";\n");
}
const SubRoutines &subRoutines = _ncs->getSubRoutines();
for (const auto &subRoutine : subRoutines) {
writeSubRoutine(out, subRoutine);
}
}
void TwoDAFile::writeASCII(Common::WriteStream &out) const {
// Write header
out.writeString("2DA V2.0\n");
if (!_defaultString.empty())
out.writeString(Common::UString::format("DEFAULT: %s", _defaultString.c_str()));
out.writeByte('\n');
// Calculate column lengths
std::vector<size_t> colLength;
colLength.resize(_headers.size() + 1, 0);
const Common::UString maxRow = Common::UString::format("%d", (int)_rows.size() - 1);
colLength[0] = maxRow.size();
for (size_t i = 0; i < _headers.size(); i++)
colLength[i + 1] = _headers[i].size();
for (size_t i = 0; i < _rows.size(); i++) {
for (size_t j = 0; j < _rows[i]->_data.size(); j++) {
const bool needQuote = _rows[i]->_data[j].contains(' ');
const size_t length = needQuote ? _rows[i]->_data[j].size() + 2 : _rows[i]->_data[j].size();
colLength[j + 1] = MAX<size_t>(colLength[j + 1], length);
}
}
// Write column headers
out.writeString(Common::UString::format("%-*s", (int)colLength[0], ""));
for (size_t i = 0; i < _headers.size(); i++)
out.writeString(Common::UString::format(" %-*s", (int)colLength[i + 1], _headers[i].c_str()));
out.writeByte('\n');
// Write array
for (size_t i = 0; i < _rows.size(); i++) {
out.writeString(Common::UString::format("%*u", (int)colLength[0], (uint)i));
for (size_t j = 0; j < _rows[i]->_data.size(); j++) {
const bool needQuote = _rows[i]->_data[j].contains(' ');
Common::UString cellString;
if (needQuote)
cellString = Common::UString::format("\"%s\"", _rows[i]->_data[j].c_str());
else
cellString = _rows[i]->_data[j];
out.writeString(Common::UString::format(" %-*s", (int)colLength[j + 1], cellString.c_str()));
}
out.writeByte('\n');
}
out.flush();
}
void Testsuite::logPrintf(const char *fmt, ...) {
// Assuming log message size to be not greater than STRINGBUFLEN i.e 256
char buffer[STRINGBUFLEN];
va_list vl;
va_start(vl, fmt);
vsnprintf(buffer, STRINGBUFLEN, fmt, vl);
va_end(vl);
Common::WriteStream *ws = ConfigParams::instance().getLogWriteStream();
if (ws) {
ws->writeString(buffer);
ws->flush();
debugCN(kTestbedLogOutput, "%s", buffer);
} else {
debugCN(kTestbedLogOutput, "%s", buffer);
}
}
void Testsuite::logDetailedPrintf(const char *fmt, ...) {
// Assuming log message size to be not greater than STRINGBUFLEN i.e 256
// Messages with this function would only be displayed if -d1 is specified on command line
char buffer[STRINGBUFLEN];
va_list vl;
va_start(vl, fmt);
vsnprintf(buffer, STRINGBUFLEN, fmt, vl);
va_end(vl);
Common::WriteStream *ws = ConfigParams::instance().getLogWriteStream();
if (ws) {
ws->writeString(buffer);
ws->flush();
debugCN(1, kTestbedLogOutput, "%s", buffer);
} else {
debugCN(1, kTestbedLogOutput, "%s", buffer);
}
}
bool LureEngine::saveGame(uint8 slotNumber, Common::String &caption) {
Common::WriteStream *f = this->_saveFileMan->openForSaving(
generateSaveName(slotNumber));
if (f == NULL)
return false;
f->write("lure", 5);
f->writeByte(getLanguage());
f->writeByte(LURE_SAVEGAME_MINOR);
f->writeString(caption);
f->writeByte(0); // End of string terminator
Resources::getReference().saveToStream(f);
Game::getReference().saveToStream(f);
Sound.saveToStream(f);
Fights.saveToStream(f);
Room::getReference().saveToStream(f);
delete f;
return true;
}
/**
* This test creates a file testbed.out, writes a sample data and confirms if
* it is same by reading the file again.
*/
TestExitStatus FStests::testWriteFile() {
const Common::String &path = ConfMan.get("path");
Common::FSNode gameRoot(path);
if (!gameRoot.exists()) {
Testsuite::logPrintf("Couldn't open the game data directory %s", path.c_str());
return kTestFailed;
}
Common::FSNode fileToWrite = gameRoot.getChild("testbed.out");
Common::WriteStream *ws = fileToWrite.createWriteStream();
if (!ws) {
Testsuite::logDetailedPrintf("Can't open writable file in game data dir\n");
return kTestFailed;
}
ws->writeString("ScummVM Rocks!");
ws->flush();
delete ws;
Common::SeekableReadStream *rs = fileToWrite.createReadStream();
if (!rs) {
Testsuite::logDetailedPrintf("Can't open recently written file testbed.out in game data dir\n");
return kTestFailed;
}
Common::String readFromFile = rs->readLine();
delete rs;
if (readFromFile.equals("ScummVM Rocks!")) {
// All good
Testsuite::logDetailedPrintf("Data written and read correctly\n");
return kTestPassed;
}
return kTestFailed;
}
void Decompiler::writeBlock(Common::WriteStream &out, const Block *block, size_t indent) {
for (const auto instruction : block->instructions) {
writeInstruction(out, instruction, indent);
}
for (const auto &childType : block->childrenTypes) {
if (isSubRoutineCall(childType)) {
writeIndent(out, indent);
const Instruction *instruction = block->instructions.back();
out.writeString(formatJumpLabelName(*instruction->branches[0]));
out.writeString("(");
for (size_t i = 0; i < instruction->variables.size(); ++i) {
out.writeString(formatVariableName(instruction->variables[i]));
if (i < instruction->variables.size() - 1)
out.writeString(", ");
}
out.writeString(");\n");
writeBlock(out, block->children[1], indent);
}
}
for (const auto &control : block->controls) {
if (control.type == kControlTypeReturn) {
writeIndent(out, indent);
out.writeString("return;\n");
} else if (control.type == kControlTypeIfCond) {
writeIfControl(out, control, indent);
}
// TODO: while
// TODO: break
// TODO: continue
}
}
void TwoDAFile::writeBinary(Common::WriteStream &out) const {
const size_t columnCount = _headers.size();
const size_t rowCount = _rows.size();
const size_t cellCount = columnCount * rowCount;
out.writeString("2DA V2.b\n");
// Write the column headers
for (std::vector<Common::UString>::const_iterator h = _headers.begin(); h != _headers.end(); ++h) {
out.writeString(*h);
out.writeByte('\t');
}
out.writeByte('\0');
// Write the row indices
out.writeUint32LE((uint32) rowCount);
for (size_t i = 0; i < rowCount; i++) {
out.writeString(Common::composeString(i));
out.writeByte('\t');
}
/* Deduplicate cell data strings. Binary 2DA files don't store the
* data for each cell directly: instead, each cell contains an offset
* into a data array. This way, cells with the same data only need to
* to store this data once.
*
* The original binary 2DA files in KotOR/KotOR2 make extensive use
* of that, and we should do this as well.
*
* Basically, this involves going through each cell, and looking up
* if we already saved this particular piece of data. If not, save
* it, otherwise only remember the offset. There's no need to be
* particularly smart about it, so we're just doing it the naive
* O(n^2) way.
*/
std::vector<Common::UString> data;
std::vector<size_t> offsets;
data.reserve(cellCount);
offsets.reserve(cellCount);
size_t dataSize = 0;
std::vector<size_t> cells;
cells.reserve(cellCount);
for (size_t i = 0; i < rowCount; i++) {
assert(_rows[i]);
for (size_t j = 0; j < columnCount; j++) {
const Common::UString cell = _rows[i]->getString(j);
// Do we already know about this cell data string?
size_t foundCell = SIZE_MAX;
for (size_t k = 0; k < data.size(); k++) {
if (data[k] == cell) {
foundCell = k;
break;
}
}
// If not, add it to the cell data array
if (foundCell == SIZE_MAX) {
foundCell = data.size();
data.push_back(cell);
offsets.push_back(dataSize);
dataSize += data.back().size() + 1;
if (dataSize > 65535)
throw Common::Exception("TwoDAFile::writeBinary(): Cell data size overflow");
}
// Remember the offset to the cell data array
cells.push_back(offsets[foundCell]);
}
}
// Write cell data offsets
for (std::vector<size_t>::const_iterator c = cells.begin(); c != cells.end(); ++c)
out.writeUint16LE((uint16) *c);
// Size of the all cell data strings
out.writeUint16LE((uint16) dataSize);
// Write cell data strings
for (std::vector<Common::UString>::const_iterator d = data.begin(); d != data.end(); ++d) {
out.writeString(*d);
out.writeByte('\0');
}
}
void Decompiler::writeIndent(Common::WriteStream &out, size_t indent) {
for (size_t i = 0; i < indent; ++i)
out.writeString("\t");
}
void Decompiler::writeInstruction(Common::WriteStream &out, const Instruction* instruction, size_t indent) {
switch (instruction->opcode) {
case kOpcodeCONST: {
const Variable *v = instruction->variables[0];
writeIndent(out, indent);
out.writeString(getVariableTypeName(v->type) + " " + formatVariableName(v) + " = " + formatInstructionData(*instruction) + ";\n");
break;
}
case kOpcodeACTION: {
unsigned int paramCount = instruction->args[1];
writeIndent(out, indent);
if (instruction->variables.size() > paramCount) {
const Variable *ret = instruction->variables.back();
out.writeString(getVariableTypeName(ret->type, _ncs->getGame()) + " " + formatVariableName(ret) + " = ");
}
out.writeString(getFunctionName(_ncs->getGame(), instruction->args[0]));
out.writeString("(");
for (unsigned int i = 0; i < paramCount; ++i) {
out.writeString(formatVariableName(instruction->variables[i]));
if (i < paramCount - 1)
out.writeString(", ");
}
out.writeString(");\n");
break;
}
case kOpcodeCPDOWNBP:
case kOpcodeCPDOWNSP:
case kOpcodeCPTOPBP:
case kOpcodeCPTOPSP: {
const Variable *v1 = instruction->variables[0];
const Variable *v2 = instruction->variables[1];
writeIndent(out, indent);
out.writeString(getVariableTypeName(v2->type, _ncs->getGame()) + " " + formatVariableName(v2) + " = " + formatVariableName(v1) + ";\n");
break;
}
case kOpcodeLOGAND: {
const Variable *v1 = instruction->variables[0];
const Variable *v2 = instruction->variables[1];
const Variable *result = instruction->variables[2];
writeIndent(out, indent);
out.writeString(
getVariableTypeName(result->type, _ncs->getGame()) + " " +
formatVariableName(result) + " = " +
formatVariableName(v1) + " && " + formatVariableName(v2) + ";\n"
);
break;
}
case kOpcodeLOGOR: {
const Variable *v1 = instruction->variables[0];
const Variable *v2 = instruction->variables[1];
const Variable *result = instruction->variables[2];
writeIndent(out, indent);
out.writeString(
getVariableTypeName(result->type, _ncs->getGame()) + " " +
formatVariableName(result) + " = " +
formatVariableName(v1) + " || " + formatVariableName(v2) + ";\n"
);
break;
}
case kOpcodeEQ: {
const Variable *v1 = instruction->variables[0];
const Variable *v2 = instruction->variables[1];
const Variable *result = instruction->variables[2];
writeIndent(out, indent);
out.writeString(
getVariableTypeName(result->type, _ncs->getGame()) + " " +
formatVariableName(result) + " = " +
formatVariableName(v1) + " == " + formatVariableName(v2) + ";\n"
);
break;
}
case kOpcodeLEQ: {
const Variable *v1 = instruction->variables[0];
const Variable *v2 = instruction->variables[1];
const Variable *result = instruction->variables[2];
writeIndent(out, indent);
out.writeString(
getVariableTypeName(result->type, _ncs->getGame()) + " " +
formatVariableName(result) + " = " +
formatVariableName(v1) + " <= " + formatVariableName(v2) + ";\n"
);
break;
}
case kOpcodeLT: {
const Variable *v1 = instruction->variables[0];
const Variable *v2 = instruction->variables[1];
const Variable *result = instruction->variables[2];
writeIndent(out, indent);
out.writeString(
getVariableTypeName(result->type, _ncs->getGame()) + " " +
formatVariableName(result) + " = " +
formatVariableName(v1) + " < " + formatVariableName(v2) + ";\n"
);
break;
}
case kOpcodeGEQ: {
const Variable *v1 = instruction->variables[0];
const Variable *v2 = instruction->variables[1];
const Variable *result = instruction->variables[2];
writeIndent(out, indent);
out.writeString(
getVariableTypeName(result->type, _ncs->getGame()) + " " +
formatVariableName(result) + " = " +
formatVariableName(v1) + " >= " + formatVariableName(v2) + ";\n"
);
break;
}
case kOpcodeGT: {
const Variable *v1 = instruction->variables[0];
const Variable *v2 = instruction->variables[1];
const Variable *result = instruction->variables[2];
writeIndent(out, indent);
out.writeString(
getVariableTypeName(result->type, _ncs->getGame()) + " " +
formatVariableName(result) + " = " +
formatVariableName(v1) + " > " + formatVariableName(v2) + ";\n"
);
break;
}
case kOpcodeNOT: {
const Variable *v = instruction->variables[0];
const Variable *result = instruction->variables[1];
writeIndent(out, indent);
out.writeString(
getVariableTypeName(result->type, _ncs->getGame()) + " " +
formatVariableName(result) + " = " +
"!" + formatVariableName(v) + ";\n"
);
break;
}
case kOpcodeRSADD: {
const Variable *v = instruction->variables[0];
writeIndent(out, indent);
out.writeString(
getVariableTypeName(v->type, _ncs->getGame()) + " " +
formatVariableName(v) + " = "
);
switch (v->type) {
case kTypeString:
out.writeString("\"\"");
break;
case kTypeInt:
out.writeString("0");
break;
case kTypeFloat:
out.writeString("0.0");
break;
default:
// TODO: No idea how empty objects or engine types are intialized.
out.writeString("0");
break;
}
out.writeString(";\n");
break;
}
// TODO: Not all necessary instruction are implemented here
default:
break;
}
}
