Initial commit

engines/director/lingo/lingodec/context.cpp

@@ -0,0 +1,84 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#include "common/stream.h"
+#include "common/util.h"
+#include "./context.h"
+#include "./names.h"
+#include "./resolver.h"
+#include "./script.h"
+
+namespace LingoDec {
+
+struct ScriptContextMapEntry;
+
+/* ScriptContext */
+
+void ScriptContext::read(Common::SeekableReadStream &stream) {
+	// Lingo scripts are always big endian regardless of file endianness
+	unknown0 = stream.readSint32BE();
+	unknown1 = stream.readSint32BE();
+	entryCount = stream.readUint32BE();
+	entryCount2 = stream.readUint32BE();
+	entriesOffset = stream.readUint16BE();
+	unknown2 = stream.readSint16BE();
+	unknown3 = stream.readSint32BE();
+	unknown4 = stream.readSint32BE();
+	unknown5 = stream.readSint32BE();
+	lnamSectionID = stream.readSint32BE();
+	validCount = stream.readUint16BE();
+	flags = stream.readUint16BE();
+	freePointer = stream.readSint16BE();
+
+	stream.seek(entriesOffset);
+	sectionMap.resize(entryCount);
+	for (auto &entry : sectionMap) {
+		entry.read(stream);
+	}
+
+	lnam = resolver->getScriptNames(lnamSectionID);
+	for (uint32 i = 1; i <= entryCount; i++) {
+		auto section = sectionMap[i - 1];
+		if (section.sectionID > -1) {
+			Script *script = resolver->getScript(section.sectionID);
+			script->setContext(this);
+			scripts[i] = script;
+		}
+	}
+
+	for (auto it = scripts.begin(); it != scripts.end(); ++it) {
+		Script *script = it->second;
+		if (script->isFactory()) {
+			Script *parent = scripts[script->parentNumber + 1];
+			parent->factories.push_back(script);
+		}
+	}
+}
+
+bool ScriptContext::validName(int id) const {
+	return lnam->validName(id);
+}
+
+Common::String ScriptContext::getName(int id) const {
+	return lnam->getName(id);
+}
+
+void ScriptContext::parseScripts() {
+	for (auto it = scripts.begin(); it != scripts.end(); ++it) {
+		it->second->parse();
+	}
+}
+
+/* ScriptContextMapEntry */
+
+void ScriptContextMapEntry::read(Common::SeekableReadStream &stream) {
+	unknown0 = stream.readSint32BE();
+	sectionID = stream.readSint32BE();
+	unknown1 = stream.readUint16BE();
+	unknown2 = stream.readUint16BE();
+}
+
+} // namespace LingoDec