#include "Interpreter.h"
#include "TypeDescription.h"
+#include "../common/Script.h"
#include <climits>
#include <cstring>
using std::make_pair;
using std::map;
using std::ostream;
+using std::pair;
using std::runtime_error;
using std::set;
using std::string;
namespace loader {
Compiler::Compiler(const Interpreter &intp)
-: intp(intp)
-, cursor(0) {
+: intp(intp) {
int headerSize(sizeof(ObjectFileHeader));
fileHeader.exportsBegin = headerSize;
ReserveHeader(out);
WriteObjects(out);
WriteOwnStrings(out);
- fileHeader.objectsEnd = cursor;
+ fileHeader.objectsEnd = out.tellp();
Pad(out, 16);
- fileHeader.arraysBegin = cursor;
+ fileHeader.arraysBegin = out.tellp();
WriteArrays(out);
- fileHeader.arraysEnd = cursor;
+ fileHeader.arraysEnd = out.tellp();
+ fileHeader.scriptsBegin = out.tellp();
+ WriteScripts(out);
+ fileHeader.scriptsEnd = out.tellp();
out.seekp(0);
- cursor = 0;
WriteHeader(out);
WriteExports(out);
WriteExternals(out);
out.seekg(fileHeader.objectsBegin);
out.clear();
Relocate(out);
+ fileHeader.imagesBegin = out.tellp();
+ WriteImages(out);
+ fileHeader.imagesEnd = out.tellp();
+ out.seekp(0);
+ WriteHeader(out);
}
void Compiler::ReserveHeader(ostream &out) {
object.typeId = Interpreter::STRING_ID;
object.size = i->size() + 1;
Write(out, &object, sizeof(Object));
- addressMap.insert(make_pair(i->c_str(), cursor));
+ addressMap.insert(make_pair(i->c_str(), out.tellp()));
Write(out, i->c_str(), object.size);
}
for(vector<Interpreter::PostponedDefinition>::const_iterator
i(intp.PostponedDefinitions().begin()),
end(intp.PostponedDefinitions().end());
i != end; ++i) {
- addressMap.insert(make_pair(
- i->identifier.c_str(), cursor));
Object object;
object.typeId = Interpreter::STRING_ID;
object.size = i->identifier.size() + 1;
Write(out, &object, sizeof(Object));
+ addressMap.insert(make_pair(
+ i->identifier.c_str(), out.tellp()));
Write(out, i->identifier.c_str(), object.size);
}
+ for (std::map<std::string, SDL_Surface *>::const_iterator
+ i(intp.Images().begin()), end(intp.Images().end());
+ i != end; ++i) {
+ addressMap.insert(make_pair(
+ i->second, 0));
+ Object object;
+ object.typeId = Interpreter::STRING_ID;
+ object.size = i->first.size() + 1;
+ Write(out, &object, sizeof(Object));
+ addressMap.insert(make_pair(
+ i->first.c_str(), out.tellp()));
+ Write(out, i->first.c_str(), object.size);
+ }
}
void Compiler::WriteExports(ostream &out) {
Object object;
PrepareObject(object, td, *j);
Write(out, &object, sizeof(Object));
+ addressMap.insert(make_pair(*j, out.tellp()));
Write(out, *j, object.size);
+
+ if (td.TypeId() == Interpreter::SCRIPT_ID) {
+ common::Script *script = reinterpret_cast<common::Script *>(*j);
+ scripts.push_back(make_pair(const_cast<char *>(script->text), script->textlen));
+ }
}
}
}
i(intp.Arrays().begin()), end(intp.Arrays().end());
i != end; ++i) {
Array array;
+ array.typeId = i->typeId;
array.size = i->size;
array.ref = i->ref;
Write(out, &array, sizeof(Array));
- addressMap.insert(make_pair(i->data, cursor));
+ addressMap.insert(make_pair(i->data, out.tellp()));
Write(out, i->data, array.size);
}
}
+void Compiler::WriteImages(ostream &out) {
+ for (std::map<unsigned int, void *>::const_iterator
+ i(images.begin()), end(images.end());
+ i != end; ++i) {
+ const string &path = intp.FindImage(
+ reinterpret_cast<SDL_Surface *>(i->second));
+ Image img;
+ img.pathOffset = addressMap.at(path.c_str());
+ img.destOffset = i->first;
+ Write(out, &img, sizeof(Image));
+ }
+}
+
+void Compiler::WriteScripts(ostream &out) {
+ for (vector<pair<const char *, unsigned int> >::const_iterator
+ i(scripts.begin()), end(scripts.end());
+ i != end; ++i) {
+ Script s;
+ s.size = i->second;
+ Write(out, &s, sizeof(Script));
+ addressMap.insert(make_pair(i->first, out.tellp()));
+ Write(out, i->first, s.size);
+ }
+}
+
void Compiler::PrepareExport(Export &exp, const string &str) {
const Interpreter::ParsedDefinition &dfn
const Interpreter::PostponedDefinition &def) {
ext.nameOffset = addressMap[def.identifier.c_str()];
ext.referenceOffset = addressMap[def.object] + (def.dest - def.object);
+ ext.typeId = def.type;
ext.inlined = 0;
if (def.inlined) ext.inlined |= 1;
if (def.aggregate) ext.inlined |= 2;
Object &object,
const TypeDescription &td,
void *data) {
- addressMap.insert(make_pair(data, cursor + sizeof(Object)));
object.typeId = td.TypeId();
switch (td.TypeId()) {
case Interpreter::STRING_ID:
int bufferSize = TypeDescription::GetMaxSize();
char *buffer = new char[bufferSize];
for (;out && out.tellg() < fileHeader.objectsEnd;) {
- // 20785
Object object;
out.read(reinterpret_cast<char *>(&object), sizeof(Object));
const TypeDescription &td = TypeDescription::Get(object.typeId);
- if (td.NeedsLinking()) {
- out.seekg(object.size, iostream::cur);
- continue;
- }
unsigned int pos = out.tellg();
- out.seekg(pos);
+
out.read(buffer, object.size);
- Relocate(buffer, td);
+ Relocate(pos, buffer, td);
out.seekp(pos);
out.write(buffer, object.size);
out.seekg(out.tellp());
Array array;
for (; out && out.tellg() < fileHeader.arraysEnd;) {
out.read(reinterpret_cast<char *>(&array), sizeof(Array));
- if (!array.ref) {
- out.seekg(array.size);
- continue;
- }
buffer = new char[array.size];
unsigned int pos = out.tellg();
- out.seekg(pos);
out.read(buffer, array.size);
- RelocateArray(buffer, array.size);
+ if (array.ref) {
+ RelocateArray(buffer, array.size);
+ } else {
+ const TypeDescription &td = TypeDescription::Get(array.typeId);
+ for (char *i = buffer, *end = buffer + array.size;
+ i < end; i += td.Size()) {
+ Relocate(pos + (i - buffer), i, td);
+ }
+ }
out.seekp(pos);
out.write(buffer, array.size);
out.seekg(out.tellp());
delete[] buffer;
}
+ Script script;
+ for (; out && out.tellg() < fileHeader.scriptsEnd;) {
+ out.read(reinterpret_cast<char *>(&script), sizeof(Script));
+ buffer = new char[script.size];
+ unsigned int pos = out.tellg();
+ out.read(buffer, script.size);
+ RelocateScript(buffer, script.size);
+ out.seekp(pos);
+ out.write(buffer, script.size);
+ out.seekg(out.tellp());
+ delete[] buffer;
+ }
}
void Compiler::RelocateArray(char *array, int size) {
for (char *i = array, *end = array + size;
i < end; i += sizeof(void *)) {
char **dest = reinterpret_cast<char **>(i);
+ if (!*dest) {
+ continue;
+ }
map<const void *, unsigned int>::const_iterator
entry(addressMap.find(*dest));
if (entry == addressMap.end()) {
}
}
-void Compiler::Relocate(char *object, const TypeDescription &td) {
+void Compiler::Relocate(
+ unsigned int pos,
+ char *object,
+ const TypeDescription &td) {
for (TypeDescription::FieldIterator
i(td.FieldsBegin()), end(td.FieldsEnd());
i != end; ++i) {
const FieldDescription &fd = i->second;
- if (!fd.IsAggregate() && !fd.IsReferenced()) {
- continue;
+ if (fd.IsAggregate() || fd.IsReferenced()) {
+ char **dest = reinterpret_cast<char **>(
+ object + fd.Offset());
+ if (!(*dest)) {
+ continue;
+ }
+ if (fd.TypeId() == Interpreter::IMAGE_ID) {
+ images.insert(make_pair(
+ pos + fd.Offset(), *dest));
+ }
+ map<const void *, unsigned int>::const_iterator
+ entry(addressMap.find(*dest));
+ if (entry == addressMap.end()) {
+ throw runtime_error(string("unable to relocate field ")
+ + i->first + " in object of type " + td.TypeName());
+ }
+ unsigned int destOffset = entry->second;
+ *dest = reinterpret_cast<char *>(destOffset);
+ } else {
+ const TypeDescription &nestedType
+ = TypeDescription::Get(fd.TypeId());
+ Relocate(pos + fd.Offset(), object + fd.Offset(), nestedType);
}
- char **dest = reinterpret_cast<char **>(
- object + fd.Offset());
- if (!(*dest)) {
- continue;
- }
- map<const void *, unsigned int>::const_iterator
- entry(addressMap.find(*dest));
- if (entry == addressMap.end()) {
- throw runtime_error(string("unable to relocate field ")
- + i->first + " in object of type " + td.TypeName());
+ }
+}
+
+void Compiler::RelocateScript(char *text, unsigned int textlen) {
+ for (char *i = text, *end = text + textlen; i < end;) {
+ common::Script::Code *code =
+ reinterpret_cast<common::Script::Code *>(i);
+ if (code->type == common::Script::TYPE_ADDRESS && code->numParams > 0) {
+ if (code->reg1 == 7) {
+ char *addr = i + sizeof(common::Script::Code);
+ std::map<const void *, unsigned int>::const_iterator
+ found(addressMap.find(*reinterpret_cast<void **>(addr)));
+ if (found == addressMap.end()) {
+ throw std::runtime_error("unable to relocate script code");
+ }
+ *reinterpret_cast<unsigned int *>(addr) = found->second;
+ }
+
+ if (code->numParams > 1 && code->reg2 == 7) {
+ char *addr = i + sizeof(common::Script::Code);
+ if (code->reg1 == 7) {
+ addr += sizeof(void *);
+ }
+ std::map<const void *, unsigned int>::const_iterator
+ found(addressMap.find(*reinterpret_cast<void **>(addr)));
+ if (found == addressMap.end()) {
+ throw std::runtime_error("unable to relocate script code");
+ }
+ *reinterpret_cast<unsigned int *>(addr) = found->second;
+ }
}
- unsigned int destOffset = entry->second;
- *dest = reinterpret_cast<char *>(destOffset);
+ i += code->Size();
}
}
void Compiler::Write(ostream &out, const void *data, int amount) {
out.write(reinterpret_cast<const char *>(data), amount);
- cursor += amount;
}
void Compiler::Pad(ostream &out, int to) {
- Fill(out, Remaining(cursor, to));
+ Fill(out, Remaining(out.tellp(), to));
}
void Compiler::Fill(ostream &out, int count, char c) {
for (int remaining(count); remaining > 0; --remaining) {
out.put(c);
- ++cursor;
}
}
projects / l2e.git / blobdiff